Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (128 commits)
  USB: fix codingstyle issues in drivers/usb/core/*.c
  USB: fix codingstyle issues in drivers/usb/core/message.c
  USB: fix codingstyle issues in drivers/usb/core/hcd-pci.c
  USB: fix codingstyle issues in drivers/usb/core/devio.c
  USB: fix codingstyle issues in drivers/usb/core/devices.c
  USB: fix codingstyle issues in drivers/usb/core/*.h
  USB: fix codingstyle issues in include/linux/usb/
  USB: fix codingstyle issues in include/linux/usb.h
  USB: mark USB drivers as being GPL only
  USB: use a real vendor and product id for root hubs
  USB: mount options: fix usbfs
  USB: Fix usb_serial_driver structure for Kobil cardreader driver.
  usb: ehci should use u16 for isochronous intervals
  usb: ehci, remove false clear-reset path
  USB: Use menuconfig objects
  usb: ohci-sm501 driver
  usb: dma bounce buffer support
  USB: last abuses of intfdata in close for usb-serial drivers
  USB: kl5kusb105 don't flush to logically disconnected devices
  USB: oti6858: cleanup
  ...

Documentation/ABI/testing/sysfs-bus-usb

@@ -52,3 +52,36 @@ Description:
 		facility is inherently dangerous, it is disabled by default
 		for all devices except hubs.  For more information, see
 		Documentation/usb/persist.txt.
+
+What:		/sys/bus/usb/device/.../power/connected_duration
+Date:		January 2008
+KernelVersion:	2.6.25
+Contact:	Sarah Sharp <sarah.a.sharp@intel.com>
+Description:
+		If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
+		is present.  When read, it returns the total time (in msec)
+		that the USB device has been connected to the machine.  This
+		file is read-only.
+Users:
+		PowerTOP <power@bughost.org>
+		http://www.lesswatts.org/projects/powertop/
+
+What:		/sys/bus/usb/device/.../power/active_duration
+Date:		January 2008
+KernelVersion:	2.6.25
+Contact:	Sarah Sharp <sarah.a.sharp@intel.com>
+Description:
+		If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
+		is present.  When read, it returns the total time (in msec)
+		that the USB device has been active, i.e. not in a suspended
+		state.  This file is read-only.
+
+		Tools can use this file and the connected_duration file to
+		compute the percentage of time that a device has been active.
+		For example,
+		echo $((100 * `cat active_duration` / `cat connected_duration`))
+		will give an integer percentage.  Note that this does not
+		account for counter wrap.
+Users:
+		PowerTOP <power@bughost.org>
+		http://www.lesswatts.org/projects/powertop/

Documentation/feature-removal-schedule.txt

@@ -156,22 +156,6 @@ Who:	Arjan van de Ven <arjan@linux.intel.com>
 
 ---------------------------
 
-What:	USB driver API moves to EXPORT_SYMBOL_GPL
-When:	February 2008
-Files:	include/linux/usb.h, drivers/usb/core/driver.c
-Why:	The USB subsystem has changed a lot over time, and it has been
-	possible to create userspace USB drivers using usbfs/libusb/gadgetfs
-	that operate as fast as the USB bus allows.  Because of this, the USB
-	subsystem will not be allowing closed source kernel drivers to
-	register with it, after this grace period is over.  If anyone needs
-	any help in converting their closed source drivers over to use the
-	userspace filesystems, please contact the
-	linux-usb-devel@lists.sourceforge.net mailing list, and the developers
-	there will be glad to help you out.
-Who:	Greg Kroah-Hartman <gregkh@suse.de>
-
----------------------------
-
 What:	vm_ops.nopage
 When:	Soon, provided in-kernel callers have been converted
 Why:	This interface is replaced by vm_ops.fault, but it has been around

Documentation/usb/gadget_printer.txt

@@ -0,0 +1,510 @@
+
+                       Linux USB Printer Gadget Driver
+                                 06/04/2007
+
+              Copyright (C) 2007 Craig W. Nadler <craig@nadler.us>
+
+
+
+GENERAL
+=======
+
+This driver may be used if you are writing printer firmware using Linux as
+the embedded OS. This driver has nothing to do with using a printer with
+your Linux host system.
+
+You will need a USB device controller and a Linux driver for it that accepts
+a gadget / "device class" driver using the Linux USB Gadget API. After the
+USB device controller driver is loaded then load the printer gadget driver.
+This will present a printer interface to the USB Host that your USB Device
+port is connected to.
+
+This driver is structured for printer firmware that runs in user mode. The
+user mode printer firmware will read and write data from the kernel mode
+printer gadget driver using a device file. The printer returns a printer status
+byte when the USB HOST sends a device request to get the printer status.  The
+user space firmware can read or write this status byte using a device file
+/dev/g_printer . Both blocking and non-blocking read/write calls are supported.
+
+
+
+
+HOWTO USE THIS DRIVER
+=====================
+
+To load the USB device controller driver and the printer gadget driver. The
+following example uses the Netchip 2280 USB device controller driver:
+
+modprobe net2280
+modprobe g_printer
+
+
+The follow command line parameter can be used when loading the printer gadget
+(ex: modprobe g_printer idVendor=0x0525 idProduct=0xa4a8 ):
+
+idVendor - This is the Vendor ID used in the device descriptor. The default is
+	the Netchip vendor id 0x0525. YOU MUST CHANGE TO YOUR OWN VENDOR ID
+	BEFORE RELEASING A PRODUCT. If you plan to release a product and don't
+	already have a Vendor ID please see www.usb.org for details on how to
+	get one.
+
+idProduct - This is the Product ID used in the device descriptor. The default
+	is 0xa4a8, you should change this to an ID that's not used by any of
+	your other USB products if you have any. It would be a good idea to
+	start numbering your products starting with say 0x0001.
+
+bcdDevice - This is the version number of your product. It would be a good idea
+	to put your firmware version here.
+
+iManufacturer - A string containing the name of the Vendor.
+
+iProduct - A string containing the Product Name.
+
+iSerialNum - A string containing the Serial Number. This should be changed for
+	each unit of your product.
+
+iPNPstring -  The PNP ID string used for this printer. You will want to set
+	either on the command line or hard code the PNP ID string used for
+	your printer product.
+
+qlen - The number of 8k buffers to use per endpoint. The default is 10, you
+	should tune this for your product. You may also want to tune the
+	size of each buffer for your product.
+
+
+
+
+USING THE EXAMPLE CODE
+======================
+
+This example code talks to stdout, instead of a print engine.
+
+To compile the test code below:
+
+1) save it to a file called prn_example.c
+2) compile the code with the follow command:
+	 gcc prn_example.c -o prn_example
+
+
+
+To read printer data from the host to stdout:
+
+	# prn_example -read_data
+
+
+To write printer data from a file (data_file) to the host:
+
+	# cat data_file | prn_example -write_data
+
+
+To get the current printer status for the gadget driver:
+
+	# prn_example -get_status
+
+	Printer status is:
+	     Printer is NOT Selected
+	     Paper is Out
+	     Printer OK
+
+
+To set printer to Selected/On-line:
+
+	# prn_example -selected
+
+
+To set printer to Not Selected/Off-line:
+
+	# prn_example -not_selected
+
+
+To set paper status to paper out:
+
+	# prn_example -paper_out
+
+
+To set paper status to paper loaded:
+
+	# prn_example -paper_loaded
+
+
+To set error status to printer OK:
+
+	# prn_example -no_error
+
+
+To set error status to ERROR:
+
+	# prn_example -error
+
+
+
+
+EXAMPLE CODE
+============
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <linux/poll.h>
+#include <sys/ioctl.h>
+#include <linux/usb/g_printer.h>
+
+#define PRINTER_FILE			"/dev/g_printer"
+#define BUF_SIZE			512
+
+
+/*
+ * 'usage()' - Show program usage.
+ */
+
+static void
+usage(const char *option)		/* I - Option string or NULL */
+{
+	if (option) {
+		fprintf(stderr,"prn_example: Unknown option \"%s\"!\n",
+				option);
+	}
+
+	fputs("\n", stderr);
+	fputs("Usage: prn_example -[options]\n", stderr);
+	fputs("Options:\n", stderr);
+	fputs("\n", stderr);
+	fputs("-get_status    Get the current printer status.\n", stderr);
+	fputs("-selected      Set the selected status to selected.\n", stderr);
+	fputs("-not_selected  Set the selected status to NOT selected.\n",
+			stderr);
+	fputs("-error         Set the error status to error.\n", stderr);
+	fputs("-no_error      Set the error status to NO error.\n", stderr);
+	fputs("-paper_out     Set the paper status to paper out.\n", stderr);
+	fputs("-paper_loaded  Set the paper status to paper loaded.\n",
+			stderr);
+	fputs("-read_data     Read printer data from driver.\n", stderr);
+	fputs("-write_data    Write printer sata to driver.\n", stderr);
+	fputs("-NB_read_data  (Non-Blocking) Read printer data from driver.\n",
+			stderr);
+	fputs("\n\n", stderr);
+
+	exit(1);
+}
+
+
+static int
+read_printer_data()
+{
+	struct pollfd	fd[1];
+
+	/* Open device file for printer gadget. */
+	fd[0].fd = open(PRINTER_FILE, O_RDWR);
+	if (fd[0].fd < 0) {
+		printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
+		close(fd[0].fd);
+		return(-1);
+	}
+
+	fd[0].events = POLLIN | POLLRDNORM;
+
+	while (1) {
+		static char buf[BUF_SIZE];
+		int bytes_read;
+		int retval;
+
+		/* Wait for up to 1 second for data. */
+		retval = poll(fd, 1, 1000);
+
+		if (retval && (fd[0].revents & POLLRDNORM)) {
+
+			/* Read data from printer gadget driver. */
+			bytes_read = read(fd[0].fd, buf, BUF_SIZE);
+
+			if (bytes_read < 0) {
+				printf("Error %d reading from %s\n",
+						fd[0].fd, PRINTER_FILE);
+				close(fd[0].fd);
+				return(-1);
+			} else if (bytes_read > 0) {
+				/* Write data to standard OUTPUT (stdout). */
+				fwrite(buf, 1, bytes_read, stdout);
+				fflush(stdout);
+			}
+
+		}
+
+	}
+
+	/* Close the device file. */
+	close(fd[0].fd);
+
+	return 0;
+}
+
+
+static int
+write_printer_data()
+{
+	struct pollfd	fd[1];
+
+	/* Open device file for printer gadget. */
+	fd[0].fd = open (PRINTER_FILE, O_RDWR);
+	if (fd[0].fd < 0) {
+		printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
+		close(fd[0].fd);
+		return(-1);
+	}
+
+	fd[0].events = POLLOUT | POLLWRNORM;
+
+	while (1) {
+		int retval;
+		static char buf[BUF_SIZE];
+		/* Read data from standard INPUT (stdin). */
+		int bytes_read = fread(buf, 1, BUF_SIZE, stdin);
+
+		if (!bytes_read) {
+			break;
+		}
+
+		while (bytes_read) {
+
+			/* Wait for up to 1 second to sent data. */
+			retval = poll(fd, 1, 1000);
+
+			/* Write data to printer gadget driver. */
+			if (retval && (fd[0].revents & POLLWRNORM)) {
+				retval = write(fd[0].fd, buf, bytes_read);
+				if (retval < 0) {
+					printf("Error %d writing to %s\n",
+							fd[0].fd,
+							PRINTER_FILE);
+					close(fd[0].fd);
+					return(-1);
+				} else {
+					bytes_read -= retval;
+				}
+
+			}
+
+		}
+
+	}
+
+	/* Wait until the data has been sent. */
+	fsync(fd[0].fd);
+
+	/* Close the device file. */
+	close(fd[0].fd);
+
+	return 0;
+}
+
+
+static int
+read_NB_printer_data()
+{
+	int		fd;
+	static char	buf[BUF_SIZE];
+	int		bytes_read;
+
+	/* Open device file for printer gadget. */
+	fd = open(PRINTER_FILE, O_RDWR|O_NONBLOCK);
+	if (fd < 0) {
+		printf("Error %d opening %s\n", fd, PRINTER_FILE);
+		close(fd);
+		return(-1);
+	}
+
+	while (1) {
+		/* Read data from printer gadget driver. */
+		bytes_read = read(fd, buf, BUF_SIZE);
+		if (bytes_read <= 0) {
+			break;
+		}
+
+		/* Write data to standard OUTPUT (stdout). */
+		fwrite(buf, 1, bytes_read, stdout);
+		fflush(stdout);
+	}
+
+	/* Close the device file. */
+	close(fd);
+
+	return 0;
+}
+
+
+static int
+get_printer_status()
+{
+	int	retval;
+	int	fd;
+
+	/* Open device file for printer gadget. */
+	fd = open(PRINTER_FILE, O_RDWR);
+	if (fd < 0) {
+		printf("Error %d opening %s\n", fd, PRINTER_FILE);
+		close(fd);
+		return(-1);
+	}
+
+	/* Make the IOCTL call. */
+	retval = ioctl(fd, GADGET_GET_PRINTER_STATUS);
+	if (retval < 0) {
+		fprintf(stderr, "ERROR: Failed to set printer status\n");
+		return(-1);
+	}
+
+	/* Close the device file. */
+	close(fd);
+
+	return(retval);
+}
+
+
+static int
+set_printer_status(unsigned char buf, int clear_printer_status_bit)
+{
+	int	retval;
+	int	fd;
+
+	retval = get_printer_status();
+	if (retval < 0) {
+		fprintf(stderr, "ERROR: Failed to get printer status\n");
+		return(-1);
+	}
+
+	/* Open device file for printer gadget. */
+	fd = open(PRINTER_FILE, O_RDWR);
+
+	if (fd < 0) {
+		printf("Error %d opening %s\n", fd, PRINTER_FILE);
+		close(fd);
+		return(-1);
+	}
+
+	if (clear_printer_status_bit) {
+		retval &= ~buf;
+	} else {
+		retval |= buf;
+	}
+
+	/* Make the IOCTL call. */
+	if (ioctl(fd, GADGET_SET_PRINTER_STATUS, (unsigned char)retval)) {
+		fprintf(stderr, "ERROR: Failed to set printer status\n");
+		return(-1);
+	}
+
+	/* Close the device file. */
+	close(fd);
+
+	return 0;
+}
+
+
+static int
+display_printer_status()
+{
+	char	printer_status;
+
+	printer_status = get_printer_status();
+	if (printer_status < 0) {
+		fprintf(stderr, "ERROR: Failed to get printer status\n");
+		return(-1);
+	}
+
+	printf("Printer status is:\n");
+	if (printer_status & PRINTER_SELECTED) {
+		printf("     Printer is Selected\n");
+	} else {
+		printf("     Printer is NOT Selected\n");
+	}
+	if (printer_status & PRINTER_PAPER_EMPTY) {
+		printf("     Paper is Out\n");
+	} else {
+		printf("     Paper is Loaded\n");
+	}
+	if (printer_status & PRINTER_NOT_ERROR) {
+		printf("     Printer OK\n");
+	} else {
+		printf("     Printer ERROR\n");
+	}
+
+	return(0);
+}
+
+
+int
+main(int  argc, char *argv[])
+{
+	int	i;		/* Looping var */
+	int	retval = 0;
+
+	/* No Args */
+	if (argc == 1) {
+		usage(0);
+		exit(0);
+	}
+
+	for (i = 1; i < argc && !retval; i ++) {
+
+		if (argv[i][0] != '-') {
+			continue;
+		}
+
+		if (!strcmp(argv[i], "-get_status")) {
+			if (display_printer_status()) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-paper_loaded")) {
+			if (set_printer_status(PRINTER_PAPER_EMPTY, 1)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-paper_out")) {
+			if (set_printer_status(PRINTER_PAPER_EMPTY, 0)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-selected")) {
+			if (set_printer_status(PRINTER_SELECTED, 0)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-not_selected")) {
+			if (set_printer_status(PRINTER_SELECTED, 1)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-error")) {
+			if (set_printer_status(PRINTER_NOT_ERROR, 1)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-no_error")) {
+			if (set_printer_status(PRINTER_NOT_ERROR, 0)) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-read_data")) {
+			if (read_printer_data()) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-write_data")) {
+			if (write_printer_data()) {
+				retval = 1;
+			}
+
+		} else if (!strcmp(argv[i], "-NB_read_data")) {
+			if (read_NB_printer_data()) {
+				retval = 1;
+			}
+
+		} else {
+			usage(argv[i]);
+			retval = 1;
+		}
+	}
+
+	exit(retval);
+}

Documentation/usb/iuu_phoenix.txt

@@ -0,0 +1,84 @@
+Infinity Usb Unlimited Readme
+-----------------------------
+
+Hi all,
+
+
+This module provide a serial interface to use your
+IUU unit in phoenix mode. Loading this module will
+bring a ttyUSB[0-x] interface. This driver must be
+used by your favorite application to pilot the IUU
+
+This driver is still in beta stage, so bugs can
+occur and your system may freeze. As far I now,
+I never had any problem with it, but I'm not a real
+guru, so don't blame me if your system is unstable
+
+You can plug more than one IUU. Every unit will
+have his own device file(/dev/ttyUSB0,/dev/ttyUSB1,...)
+
+
+
+How to tune the reader speed ?
+
+ A few parameters can be used at load time
+ To use parameters, just unload the module if it is
+ already loaded and use modprobe iuu_phoenix param=value.
+ In case of prebuilt module, use the command
+ insmod iuu_phoenix param=value.
+
+ Example:
+
+ modprobe iuu_phoenix clockmode=3
+
+ The parameters are:
+
+ parm:           clockmode:1=3Mhz579,2=3Mhz680,3=6Mhz (int)
+ parm:           boost:overclock boost percent 100 to 500 (int)
+ parm:           cdmode:Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, 4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING (int)
+ parm:           xmas:xmas color enabled or not (bool)
+ parm:           debug:Debug enabled or not (bool)
+
+-  clockmode will provide 3 different base settings commonly adopted by
+   different software:
+ 	1. 3Mhz579
+	2. 3Mhz680
+	3. 6Mhz
+
+-  boost provide a way to overclock the reader ( my favorite :-)  )
+   For example to have best performance than a simple clockmode=3, try this:
+
+      modprobe boost=195
+
+   This will put the reader in a base of 3Mhz579 but boosted a 195 % !
+   the real clock will be now : 6979050 Hz ( 6Mhz979 ) and will increase
+   the speed to a score 10 to 20% better than the simple clockmode=3 !!!
+
+
+-  cdmode permit to setup the signal used to inform the userland ( ioctl answer )
+   if the card is present or not. Eight signals are possible.
+
+-  xmas is completely useless except for your eyes. This is one of my friend who was
+   so sad to have a nice device like the iuu without seeing all color range available.
+   So I have added this option to permit him to see a lot of color ( each activity change the color
+   and the frequency randomly )
+
+-  debug will produce a lot of debugging messages...
+
+
+ Last notes:
+
+ Don't worry about the serial settings, the serial emulation
+ is an abstraction, so use any speed or parity setting will
+ work. ( This will not change anything ).Later I will perhaps
+ use this settings to deduce de boost but is that feature
+ really necessary ?
+ The autodetect feature used is the serial CD. If that doesn't
+ work for your software, disable detection mechanism in it.
+
+
+ Have fun !
+
+ Alain Degreffe
+
+ eczema(at)ecze.com

arch/arm/mach-pxa/tosa.c

@@ -157,15 +157,10 @@ static void tosa_udc_command(int cmd)
 	}
 }
 
-static int tosa_udc_is_connected(void)
-{
-	return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0);
-}
-
-
 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 	.udc_command		= tosa_udc_command,
-	.udc_is_connected	= tosa_udc_is_connected,
+	.gpio_vbus		= TOSA_GPIO_USB_IN,
+	.gpio_vbus_inverted	= 1,
 };
 
 /*

drivers/block/ub.c

@@ -922,11 +922,6 @@ static int ub_scsi_cmd_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->send_bulk_pipe,
 	    bcb, US_BULK_CB_WRAP_LEN, ub_urb_complete, sc);
 
-	/* Fill what we shouldn't be filling, because usb-storage did so. */
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
-
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		/* XXX Clear stalls */
 		ub_complete(&sc->work_done);
@@ -1313,9 +1308,6 @@ static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	sc->last_pipe = pipe;
 	usb_fill_bulk_urb(&sc->work_urb, sc->dev, pipe, sg_virt(sg),
 	    sg->length, ub_urb_complete, sc);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		/* XXX Clear stalls */
@@ -1356,9 +1348,6 @@ static int __ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	sc->last_pipe = sc->recv_bulk_pipe;
 	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->recv_bulk_pipe,
 	    &sc->work_bcs, US_BULK_CS_WRAP_LEN, ub_urb_complete, sc);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		/* XXX Clear stalls */
@@ -1473,9 +1462,6 @@ static int ub_submit_clear_stall(struct ub_dev *sc, struct ub_scsi_cmd *cmd,
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
 	    (unsigned char*) cr, NULL, 0, ub_urb_complete, sc);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		ub_complete(&sc->work_done);
@@ -1953,9 +1939,6 @@ static int ub_sync_reset(struct ub_dev *sc)
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
 	    (unsigned char*) cr, NULL, 0, ub_probe_urb_complete, &compl);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
 		printk(KERN_WARNING
@@ -2007,9 +1990,6 @@ static int ub_sync_getmaxlun(struct ub_dev *sc)
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->recv_ctrl_pipe,
 	    (unsigned char*) cr, p, 1, ub_probe_urb_complete, &compl);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0)
 		goto err_submit;
@@ -2077,9 +2057,6 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
 	    (unsigned char*) cr, NULL, 0, ub_probe_urb_complete, &compl);
-	sc->work_urb.actual_length = 0;
-	sc->work_urb.error_count = 0;
-	sc->work_urb.status = 0;
 
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
 		printk(KERN_WARNING

drivers/usb/Kconfig

@@ -42,6 +42,10 @@ config USB_ARCH_HAS_OHCI
 	default y if PPC_MPC52xx
 	# MIPS:
 	default y if SOC_AU1X00
+	# SH:
+	default y if CPU_SUBTYPE_SH7720
+	default y if CPU_SUBTYPE_SH7721
+	default y if CPU_SUBTYPE_SH7763
 	# more:
 	default PCI
 
@@ -50,6 +54,7 @@ config USB_ARCH_HAS_EHCI
 	boolean
 	default y if PPC_83xx
 	default y if SOC_AU1200
+	default y if ARCH_IXP4XX
 	default PCI
 
 # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.

drivers/usb/atm/Kconfig

@@ -2,10 +2,7 @@
 # USB/ATM DSL configuration
 #
 
-menu "USB DSL modem support"
-	depends on USB
-
-config USB_ATM
+menuconfig USB_ATM
 	tristate "USB DSL modem support"
 	depends on USB && ATM
 	select CRC32
@@ -18,6 +15,8 @@ config USB_ATM
 	  To compile this driver as a module, choose M here: the
 	  module will be called usbatm.
 
+if USB_ATM
+
 config USB_SPEEDTOUCH
 	tristate "Speedtouch USB support"
 	depends on USB_ATM
@@ -70,4 +69,4 @@ config USB_XUSBATM
 	  To compile this driver as a module, choose M here: the
 	  module will be called xusbatm.
 
-endmenu
+endif # USB_ATM

drivers/usb/atm/ueagle-atm.c

@@ -999,7 +999,7 @@ static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
 		bi.dwAddress = swab32(blockidx->PageAddress);
 
 		uea_dbg(INS_TO_USBDEV(sc),
-		       "sending block %u for DSP page %u size %u adress %x\n",
+		       "sending block %u for DSP page %u size %u address %x\n",
 		       blockno, pageno, blocksize, le32_to_cpu(blockidx->PageAddress));
 
 		/* send block info through the IDMA pipe */
@@ -1990,7 +1990,7 @@ static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
 	return;
 
 bad2:
-	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
+	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
 			"Function : %d, Subfunction : %d\n",
 			E1_FUNCTION_TYPE(cmv->bFunction),
 			E1_FUNCTION_SUBTYPE(cmv->bFunction));
@@ -2038,7 +2038,7 @@ static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
 	return;
 
 bad2:
-	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
+	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
 			"Function : %d, Subfunction : %d\n",
 			E4_FUNCTION_TYPE(cmv->wFunction),
 			E4_FUNCTION_SUBTYPE(cmv->wFunction));

drivers/usb/class/cdc-acm.c

@@ -496,10 +496,19 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
 	   otherwise it is scheduled, and with high data rates data can get lost. */
 	tty->low_latency = 1;
 
+	if (usb_autopm_get_interface(acm->control)) {
+		mutex_unlock(&open_mutex);
+		return -EIO;
+	}
+
+	mutex_lock(&acm->mutex);
+	mutex_unlock(&open_mutex);
 	if (acm->used++) {
+		usb_autopm_put_interface(acm->control);
 		goto done;
         }
 
+
 	acm->ctrlurb->dev = acm->dev;
 	if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) {
 		dbg("usb_submit_urb(ctrl irq) failed");
@@ -526,14 +535,15 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
 
 done:
 err_out:
-	mutex_unlock(&open_mutex);
+	mutex_unlock(&acm->mutex);
 	return rv;
 
 full_bailout:
 	usb_kill_urb(acm->ctrlurb);
 bail_out:
+	usb_autopm_put_interface(acm->control);
 	acm->used--;
-	mutex_unlock(&open_mutex);
+	mutex_unlock(&acm->mutex);
 	return -EIO;
 }
 
@@ -570,6 +580,7 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp)
 			usb_kill_urb(acm->writeurb);
 			for (i = 0; i < nr; i++)
 				usb_kill_urb(acm->ru[i].urb);
+			usb_autopm_put_interface(acm->control);
 		} else
 			acm_tty_unregister(acm);
 	}
@@ -904,7 +915,7 @@ next_desc:
 	}
 	
 	if (data_interface_num != call_interface_num)
-		dev_dbg(&intf->dev,"Seperate call control interface. That is not fully supported.\n");
+		dev_dbg(&intf->dev,"Separate call control interface. That is not fully supported.\n");
 
 skip_normal_probe:
 
@@ -980,6 +991,7 @@ skip_normal_probe:
 	spin_lock_init(&acm->throttle_lock);
 	spin_lock_init(&acm->write_lock);
 	spin_lock_init(&acm->read_lock);
+	mutex_init(&acm->mutex);
 	acm->write_ready = 1;
 	acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
 
@@ -1096,6 +1108,25 @@ alloc_fail:
 	return -ENOMEM;
 }
 
+static void stop_data_traffic(struct acm *acm)
+{
+	int i;
+
+	tasklet_disable(&acm->urb_task);
+
+	usb_kill_urb(acm->ctrlurb);
+	usb_kill_urb(acm->writeurb);
+	for (i = 0; i < acm->rx_buflimit; i++)
+		usb_kill_urb(acm->ru[i].urb);
+
+	INIT_LIST_HEAD(&acm->filled_read_bufs);
+	INIT_LIST_HEAD(&acm->spare_read_bufs);
+
+	tasklet_enable(&acm->urb_task);
+
+	cancel_work_sync(&acm->work);
+}
+
 static void acm_disconnect(struct usb_interface *intf)
 {
 	struct acm *acm = usb_get_intfdata(intf);
@@ -1123,19 +1154,7 @@ static void acm_disconnect(struct usb_interface *intf)
 	usb_set_intfdata(acm->control, NULL);
 	usb_set_intfdata(acm->data, NULL);
 
-	tasklet_disable(&acm->urb_task);
-
-	usb_kill_urb(acm->ctrlurb);
-	usb_kill_urb(acm->writeurb);
-	for (i = 0; i < acm->rx_buflimit; i++)
-		usb_kill_urb(acm->ru[i].urb);
-
-	INIT_LIST_HEAD(&acm->filled_read_bufs);
-	INIT_LIST_HEAD(&acm->spare_read_bufs);
-
-	tasklet_enable(&acm->urb_task);
-
-	flush_scheduled_work(); /* wait for acm_softint */
+	stop_data_traffic(acm);
 
 	acm_write_buffers_free(acm);
 	usb_buffer_free(usb_dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
@@ -1156,6 +1175,46 @@ static void acm_disconnect(struct usb_interface *intf)
 		tty_hangup(acm->tty);
 }
 
+static int acm_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct acm *acm = usb_get_intfdata(intf);
+
+	if (acm->susp_count++)
+		return 0;
+	/*
+	we treat opened interfaces differently,
+	we must guard against open
+	*/
+	mutex_lock(&acm->mutex);
+
+	if (acm->used)
+		stop_data_traffic(acm);
+
+	mutex_unlock(&acm->mutex);
+	return 0;
+}
+
+static int acm_resume(struct usb_interface *intf)
+{
+	struct acm *acm = usb_get_intfdata(intf);
+	int rv = 0;
+
+	if (--acm->susp_count)
+		return 0;
+
+	mutex_lock(&acm->mutex);
+	if (acm->used) {
+		rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO);
+		if (rv < 0)
+		goto err_out;
+
+		tasklet_schedule(&acm->urb_task);
+	}
+
+err_out:
+	mutex_unlock(&acm->mutex);
+	return rv;
+}
 /*
  * USB driver structure.
  */
@@ -1208,7 +1267,10 @@ static struct usb_driver acm_driver = {
 	.name =		"cdc_acm",
 	.probe =	acm_probe,
 	.disconnect =	acm_disconnect,
+	.suspend =	acm_suspend,
+	.resume =	acm_resume,
 	.id_table =	acm_ids,
+	.supports_autosuspend = 1,
 };
 
 /*

drivers/usb/class/cdc-acm.h

@@ -107,6 +107,7 @@ struct acm {
 	int write_used;					/* number of non-empty write buffers */
 	int write_ready;				/* write urb is not running */
 	spinlock_t write_lock;
+	struct mutex mutex;
 	struct usb_cdc_line_coding line;		/* bits, stop, parity */
 	struct work_struct work;			/* work queue entry for line discipline waking up */
 	struct tasklet_struct urb_task;                 /* rx processing */
@@ -120,6 +121,7 @@ struct acm {
 	unsigned char throttle;				/* throttled by tty layer */
 	unsigned char clocal;				/* termios CLOCAL */
 	unsigned int ctrl_caps;				/* control capabilities from the class specific header */
+	unsigned int susp_count;			/* number of suspended interfaces */
 };
 
 #define CDC_DATA_INTERFACE_TYPE	0x0a

drivers/usb/core/Kconfig

@@ -9,6 +9,21 @@ config USB_DEBUG
 	  of debug messages to the system log. Select this if you are having a
 	  problem with USB support and want to see more of what is going on.
 
+config USB_ANNOUNCE_NEW_DEVICES
+	bool "USB announce new devices"
+	depends on USB
+	default N
+	help
+	  Say Y here if you want the USB core to always announce the
+	  idVendor, idProduct, Manufacturer, Product, and SerialNumber
+	  strings for every new USB device to the syslog.  This option is
+	  usually used by distro vendors to help with debugging and to
+	  let users know what specific device was added to the machine
+	  in what location.
+
+	  If you do not want this kind of information sent to the system
+	  log, or have any doubts about this, say N here.
+
 comment "Miscellaneous USB options"
 	depends on USB
 

drivers/usb/core/buffer.c

@@ -53,11 +53,13 @@ int hcd_buffer_create(struct usb_hcd *hcd)
 	char		name[16];
 	int 		i, size;
 
-	if (!hcd->self.controller->dma_mask)
+	if (!hcd->self.controller->dma_mask &&
+	    !(hcd->driver->flags & HCD_LOCAL_MEM))
 		return 0;
 
-	for (i = 0; i < HCD_BUFFER_POOLS; i++) { 
-		if (!(size = pool_max [i]))
+	for (i = 0; i < HCD_BUFFER_POOLS; i++) {
+		size = pool_max[i];
+		if (!size)
 			continue;
 		snprintf(name, sizeof name, "buffer-%d", size);
 		hcd->pool[i] = dma_pool_create(name, hcd->self.controller,
@@ -80,10 +82,10 @@ int hcd_buffer_create(struct usb_hcd *hcd)
  */
 void hcd_buffer_destroy(struct usb_hcd *hcd)
 {
-	int		i;
+	int i;
 
-	for (i = 0; i < HCD_BUFFER_POOLS; i++) { 
-		struct dma_pool		*pool = hcd->pool[i];
+	for (i = 0; i < HCD_BUFFER_POOLS; i++) {
+		struct dma_pool *pool = hcd->pool[i];
 		if (pool) {
 			dma_pool_destroy(pool);
 			hcd->pool[i] = NULL;
@@ -107,7 +109,8 @@ void *hcd_buffer_alloc(
 	int 			i;
 
 	/* some USB hosts just use PIO */
-	if (!bus->controller->dma_mask) {
+	if (!bus->controller->dma_mask &&
+	    !(hcd->driver->flags & HCD_LOCAL_MEM)) {
 		*dma = ~(dma_addr_t) 0;
 		return kmalloc(size, mem_flags);
 	}
@@ -132,7 +135,8 @@ void hcd_buffer_free(
 	if (!addr)
 		return;
 
-	if (!bus->controller->dma_mask) {
+	if (!bus->controller->dma_mask &&
+	    !(hcd->driver->flags & HCD_LOCAL_MEM)) {
 		kfree(addr);
 		return;
 	}

drivers/usb/core/config.c

@@ -238,7 +238,7 @@ static int usb_parse_interface(struct device *ddev, int cfgno,
 
 	/* Allocate space for the right(?) number of endpoints */
 	num_ep = num_ep_orig = alt->desc.bNumEndpoints;
-	alt->desc.bNumEndpoints = 0;		// Use as a counter
+	alt->desc.bNumEndpoints = 0;		/* Use as a counter */
 	if (num_ep > USB_MAXENDPOINTS) {
 		dev_warn(ddev, "too many endpoints for config %d interface %d "
 		    "altsetting %d: %d, using maximum allowed: %d\n",
@@ -246,7 +246,8 @@ static int usb_parse_interface(struct device *ddev, int cfgno,
 		num_ep = USB_MAXENDPOINTS;
 	}
 
-	if (num_ep > 0) {	/* Can't allocate 0 bytes */
+	if (num_ep > 0) {
+		/* Can't allocate 0 bytes */
 		len = sizeof(struct usb_host_endpoint) * num_ep;
 		alt->endpoint = kzalloc(len, GFP_KERNEL);
 		if (!alt->endpoint)
@@ -475,8 +476,9 @@ static int usb_parse_configuration(struct device *ddev, int cfgidx,
 	return 0;
 }
 
-// hub-only!! ... and only exported for reset/reinit path.
-// otherwise used internally on disconnect/destroy path
+/* hub-only!! ... and only exported for reset/reinit path.
+ * otherwise used internally on disconnect/destroy path
+ */
 void usb_destroy_configuration(struct usb_device *dev)
 {
 	int c, i;
@@ -498,7 +500,7 @@ void usb_destroy_configuration(struct usb_device *dev)
 		kfree(cf->string);
 		for (i = 0; i < cf->desc.bNumInterfaces; i++) {
 			if (cf->intf_cache[i])
-				kref_put(&cf->intf_cache[i]->ref, 
+				kref_put(&cf->intf_cache[i]->ref,
 					  usb_release_interface_cache);
 		}
 	}
@@ -525,7 +527,7 @@ int usb_get_configuration(struct usb_device *dev)
 	unsigned int cfgno, length;
 	unsigned char *buffer;
 	unsigned char *bigbuffer;
- 	struct usb_config_descriptor *desc;
+	struct usb_config_descriptor *desc;
 
 	cfgno = 0;
 	if (dev->authorized == 0)	/* Not really an error */

drivers/usb/core/devices.c

@@ -89,7 +89,7 @@ static const char *format_string_serialnumber =
 static const char *format_bandwidth =
 /* B:  Alloc=ddd/ddd us (xx%), #Int=ddd, #Iso=ddd */
   "B:  Alloc=%3d/%3d us (%2d%%), #Int=%3d, #Iso=%3d\n";
-  
+
 static const char *format_device1 =
 /* D:  Ver=xx.xx Cls=xx(sssss) Sub=xx Prot=xx MxPS=dd #Cfgs=dd */
   "D:  Ver=%2x.%02x Cls=%02x(%-5s) Sub=%02x Prot=%02x MxPS=%2d #Cfgs=%3d\n";
@@ -101,7 +101,7 @@ static const char *format_device2 =
 static const char *format_config =
 /* C:  #Ifs=dd Cfg#=dd Atr=xx MPwr=dddmA */
   "C:%c #Ifs=%2d Cfg#=%2d Atr=%02x MxPwr=%3dmA\n";
-  
+
 static const char *format_iad =
 /* A:  FirstIf#=dd IfCount=dd Cls=xx(sssss) Sub=xx Prot=xx */
   "A:  FirstIf#=%2d IfCount=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x\n";
@@ -122,7 +122,7 @@ static const char *format_endpt =
  */
 
 static DECLARE_WAIT_QUEUE_HEAD(deviceconndiscwq);
-static unsigned int conndiscevcnt = 0;
+static unsigned int conndiscevcnt;
 
 /* this struct stores the poll state for <mountpoint>/devices pollers */
 struct usb_device_status {
@@ -172,12 +172,8 @@ static const char *class_decode(const int class)
 	return clas_info[ix].class_name;
 }
 
-static char *usb_dump_endpoint_descriptor(
-	int speed,
-	char *start,
-	char *end,
-	const struct usb_endpoint_descriptor *desc
-)
+static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
+				const struct usb_endpoint_descriptor *desc)
 {
 	char dir, unit, *type;
 	unsigned interval, bandwidth = 1;
@@ -235,22 +231,24 @@ static char *usb_dump_endpoint_descriptor(
 
 	start += sprintf(start, format_endpt, desc->bEndpointAddress, dir,
 			 desc->bmAttributes, type,
-			 (le16_to_cpu(desc->wMaxPacketSize) & 0x07ff) * bandwidth,
+			 (le16_to_cpu(desc->wMaxPacketSize) & 0x07ff) *
+			 bandwidth,
 			 interval, unit);
 	return start;
 }
 
 static char *usb_dump_interface_descriptor(char *start, char *end,
-	const struct usb_interface_cache *intfc,
-	const struct usb_interface *iface,
-	int setno)
+					const struct usb_interface_cache *intfc,
+					const struct usb_interface *iface,
+					int setno)
 {
-	const struct usb_interface_descriptor *desc = &intfc->altsetting[setno].desc;
+	const struct usb_interface_descriptor *desc;
 	const char *driver_name = "";
 	int active = 0;
 
 	if (start > end)
 		return start;
+	desc = &intfc->altsetting[setno].desc;
 	if (iface) {
 		driver_name = (iface->dev.driver
 				? iface->dev.driver->name
@@ -270,14 +268,10 @@ static char *usb_dump_interface_descriptor(char *start, char *end,
 	return start;
 }
 
-static char *usb_dump_interface(
-	int speed,
-	char *start,
-	char *end,
-	const struct usb_interface_cache *intfc,
-	const struct usb_interface *iface,
-	int setno
-) {
+static char *usb_dump_interface(int speed, char *start, char *end,
+				const struct usb_interface_cache *intfc,
+				const struct usb_interface *iface, int setno)
+{
 	const struct usb_host_interface *desc = &intfc->altsetting[setno];
 	int i;
 
@@ -292,7 +286,7 @@ static char *usb_dump_interface(
 }
 
 static char *usb_dump_iad_descriptor(char *start, char *end,
-	const struct usb_interface_assoc_descriptor *iad)
+			const struct usb_interface_assoc_descriptor *iad)
 {
 	if (start > end)
 		return start;
@@ -311,13 +305,15 @@ static char *usb_dump_iad_descriptor(char *start, char *end,
  * 1. marking active interface altsettings (code lists all, but should mark
  *    which ones are active, if any)
  */
-
-static char *usb_dump_config_descriptor(char *start, char *end, const struct usb_config_descriptor *desc, int active)
+static char *usb_dump_config_descriptor(char *start, char *end,
+				const struct usb_config_descriptor *desc,
+				int active)
 {
 	if (start > end)
 		return start;
 	start += sprintf(start, format_config,
-			 active ? '*' : ' ',	/* mark active/actual/current cfg. */
+			 /* mark active/actual/current cfg. */
+			 active ? '*' : ' ',
 			 desc->bNumInterfaces,
 			 desc->bConfigurationValue,
 			 desc->bmAttributes,
@@ -325,13 +321,8 @@ static char *usb_dump_config_descriptor(char *start, char *end, const struct usb
 	return start;
 }
 
-static char *usb_dump_config (
-	int speed,
-	char *start,
-	char *end,
-	const struct usb_host_config *config,
-	int active
-)
+static char *usb_dump_config(int speed, char *start, char *end,
+			     const struct usb_host_config *config, int active)
 {
 	int i, j;
 	struct usb_interface_cache *intfc;
@@ -339,7 +330,8 @@ static char *usb_dump_config (
 
 	if (start > end)
 		return start;
-	if (!config)		/* getting these some in 2.3.7; none in 2.3.6 */
+	if (!config)
+		/* getting these some in 2.3.7; none in 2.3.6 */
 		return start + sprintf(start, "(null Cfg. desc.)\n");
 	start = usb_dump_config_descriptor(start, end, &config->desc, active);
 	for (i = 0; i < USB_MAXIADS; i++) {
@@ -364,7 +356,8 @@ static char *usb_dump_config (
 /*
  * Dump the different USB descriptors.
  */
-static char *usb_dump_device_descriptor(char *start, char *end, const struct usb_device_descriptor *desc)
+static char *usb_dump_device_descriptor(char *start, char *end,
+				const struct usb_device_descriptor *desc)
 {
 	u16 bcdUSB = le16_to_cpu(desc->bcdUSB);
 	u16 bcdDevice = le16_to_cpu(desc->bcdDevice);
@@ -374,7 +367,7 @@ static char *usb_dump_device_descriptor(char *start, char *end, const struct usb
 	start += sprintf(start, format_device1,
 			  bcdUSB >> 8, bcdUSB & 0xff,
 			  desc->bDeviceClass,
-			  class_decode (desc->bDeviceClass),
+			  class_decode(desc->bDeviceClass),
 			  desc->bDeviceSubClass,
 			  desc->bDeviceProtocol,
 			  desc->bMaxPacketSize0,
@@ -391,12 +384,14 @@ static char *usb_dump_device_descriptor(char *start, char *end, const struct usb
 /*
  * Dump the different strings that this device holds.
  */
-static char *usb_dump_device_strings(char *start, char *end, struct usb_device *dev)
+static char *usb_dump_device_strings(char *start, char *end,
+				     struct usb_device *dev)
 {
 	if (start > end)
 		return start;
 	if (dev->manufacturer)
-		start += sprintf(start, format_string_manufacturer, dev->manufacturer);
+		start += sprintf(start, format_string_manufacturer,
+				 dev->manufacturer);
 	if (start > end)
 		goto out;
 	if (dev->product)
@@ -405,7 +400,8 @@ static char *usb_dump_device_strings(char *start, char *end, struct usb_device *
 		goto out;
 #ifdef ALLOW_SERIAL_NUMBER
 	if (dev->serial)
-		start += sprintf(start, format_string_serialnumber, dev->serial);
+		start += sprintf(start, format_string_serialnumber,
+				 dev->serial);
 #endif
  out:
 	return start;
@@ -417,12 +413,12 @@ static char *usb_dump_desc(char *start, char *end, struct usb_device *dev)
 
 	if (start > end)
 		return start;
-		
+
 	start = usb_dump_device_descriptor(start, end, &dev->descriptor);
 
 	if (start > end)
 		return start;
-	
+
 	start = usb_dump_device_strings(start, end, dev);
 
 	for (i = 0; i < dev->descriptor.bNumConfigurations; i++) {
@@ -439,7 +435,8 @@ static char *usb_dump_desc(char *start, char *end, struct usb_device *dev)
 
 #ifdef PROC_EXTRA /* TBD: may want to add this code later */
 
-static char *usb_dump_hub_descriptor(char *start, char *end, const struct usb_hub_descriptor * desc)
+static char *usb_dump_hub_descriptor(char *start, char *end,
+				     const struct usb_hub_descriptor *desc)
 {
 	int leng = USB_DT_HUB_NONVAR_SIZE;
 	unsigned char *ptr = (unsigned char *)desc;
@@ -455,13 +452,16 @@ static char *usb_dump_hub_descriptor(char *start, char *end, const struct usb_hu
 	return start;
 }
 
-static char *usb_dump_string(char *start, char *end, const struct usb_device *dev, char *id, int index)
+static char *usb_dump_string(char *start, char *end,
+			     const struct usb_device *dev, char *id, int index)
 {
 	if (start > end)
 		return start;
 	start += sprintf(start, "Interface:");
-	if (index <= dev->maxstring && dev->stringindex && dev->stringindex[index])
-		start += sprintf(start, "%s: %.100s ", id, dev->stringindex[index]);
+	if (index <= dev->maxstring && dev->stringindex &&
+	    dev->stringindex[index])
+		start += sprintf(start, "%s: %.100s ", id,
+				 dev->stringindex[index]);
 	return start;
 }
 
@@ -476,8 +476,10 @@ static char *usb_dump_string(char *start, char *end, const struct usb_device *de
  * file_offset - the offset into the devices file on completion
  * The caller must own the device lock.
  */
-static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *skip_bytes, loff_t *file_offset,
-				struct usb_device *usbdev, struct usb_bus *bus, int level, int index, int count)
+static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
+			       loff_t *skip_bytes, loff_t *file_offset,
+			       struct usb_device *usbdev, struct usb_bus *bus,
+			       int level, int index, int count)
 {
 	int chix;
 	int ret, cnt = 0;
@@ -485,17 +487,19 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *ski
 	char *pages_start, *data_end, *speed;
 	unsigned int length;
 	ssize_t total_written = 0;
-	
+
 	/* don't bother with anything else if we're not writing any data */
 	if (*nbytes <= 0)
 		return 0;
-	
+
 	if (level > MAX_TOPO_LEVEL)
 		return 0;
-	/* allocate 2^1 pages = 8K (on i386); should be more than enough for one device */
-        if (!(pages_start = (char*) __get_free_pages(GFP_KERNEL,1)))
-                return -ENOMEM;
-		
+	/* allocate 2^1 pages = 8K (on i386);
+	 * should be more than enough for one device */
+	pages_start = (char *)__get_free_pages(GFP_KERNEL, 1);
+	if (!pages_start)
+		return -ENOMEM;
+
 	if (usbdev->parent && usbdev->parent->devnum != -1)
 		parent_devnum = usbdev->parent->devnum;
 	/*
@@ -541,15 +545,16 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *ski
 				bus->bandwidth_allocated, max,
 				(100 * bus->bandwidth_allocated + max / 2)
 					/ max,
-			         bus->bandwidth_int_reqs,
-				 bus->bandwidth_isoc_reqs);
-	
+				bus->bandwidth_int_reqs,
+				bus->bandwidth_isoc_reqs);
+
 	}
-	data_end = usb_dump_desc(data_end, pages_start + (2 * PAGE_SIZE) - 256, usbdev);
-	
+	data_end = usb_dump_desc(data_end, pages_start + (2 * PAGE_SIZE) - 256,
+				 usbdev);
+
 	if (data_end > (pages_start + (2 * PAGE_SIZE) - 256))
 		data_end += sprintf(data_end, "(truncated)\n");
-	
+
 	length = data_end - pages_start;
 	/* if we can start copying some data to the user */
 	if (length > *skip_bytes) {
@@ -567,17 +572,18 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *ski
 		*skip_bytes = 0;
 	} else
 		*skip_bytes -= length;
-	
+
 	free_pages((unsigned long)pages_start, 1);
-	
+
 	/* Now look at all of this device's children. */
 	for (chix = 0; chix < usbdev->maxchild; chix++) {
 		struct usb_device *childdev = usbdev->children[chix];
 
 		if (childdev) {
 			usb_lock_device(childdev);
-			ret = usb_device_dump(buffer, nbytes, skip_bytes, file_offset, childdev,
-					bus, level + 1, chix, ++cnt);
+			ret = usb_device_dump(buffer, nbytes, skip_bytes,
+					      file_offset, childdev, bus,
+					      level + 1, chix, ++cnt);
 			usb_unlock_device(childdev);
 			if (ret == -EFAULT)
 				return total_written;
@@ -587,7 +593,8 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, loff_t *ski
 	return total_written;
 }
 
-static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+static ssize_t usb_device_read(struct file *file, char __user *buf,
+			       size_t nbytes, loff_t *ppos)
 {
 	struct usb_bus *bus;
 	ssize_t ret, total_written = 0;
@@ -607,7 +614,8 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte
 		if (!bus->root_hub)
 			continue;
 		usb_lock_device(bus->root_hub);
-		ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos, bus->root_hub, bus, 0, 0, 0);
+		ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos,
+				      bus->root_hub, bus, 0, 0, 0);
 		usb_unlock_device(bus->root_hub);
 		if (ret < 0) {
 			mutex_unlock(&usb_bus_list_lock);
@@ -620,7 +628,8 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte
 }
 
 /* Kernel lock for "lastev" protection */
-static unsigned int usb_device_poll(struct file *file, struct poll_table_struct *wait)
+static unsigned int usb_device_poll(struct file *file,
+				    struct poll_table_struct *wait)
 {
 	struct usb_device_status *st = file->private_data;
 	unsigned int mask = 0;
@@ -629,7 +638,8 @@ static unsigned int usb_device_poll(struct file *file, struct poll_table_struct
 	if (!st) {
 		st = kmalloc(sizeof(struct usb_device_status), GFP_KERNEL);
 
-		/* we may have dropped BKL - need to check for having lost the race */
+		/* we may have dropped BKL -
+		 * need to check for having lost the race */
 		if (file->private_data) {
 			kfree(st);
 			st = file->private_data;
@@ -652,7 +662,7 @@ static unsigned int usb_device_poll(struct file *file, struct poll_table_struct
 	}
 lost_race:
 	if (file->f_mode & FMODE_READ)
-                poll_wait(file, &deviceconndiscwq, wait);
+		poll_wait(file, &deviceconndiscwq, wait);
 	if (st->lastev != conndiscevcnt)
 		mask |= POLLIN;
 	st->lastev = conndiscevcnt;
@@ -662,18 +672,18 @@ lost_race:
 
 static int usb_device_open(struct inode *inode, struct file *file)
 {
-        file->private_data = NULL;
-        return 0;
+	file->private_data = NULL;
+	return 0;
 }
 
 static int usb_device_release(struct inode *inode, struct file *file)
 {
 	kfree(file->private_data);
 	file->private_data = NULL;
-        return 0;
+	return 0;
 }
 
-static loff_t usb_device_lseek(struct file * file, loff_t offset, int orig)
+static loff_t usb_device_lseek(struct file *file, loff_t offset, int orig)
 {
 	loff_t ret;
 

drivers/usb/core/devio.c

@@ -75,14 +75,14 @@ struct async {
 	u32 secid;
 };
 
-static int usbfs_snoop = 0;
-module_param (usbfs_snoop, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC (usbfs_snoop, "true to log all usbfs traffic");
+static int usbfs_snoop;
+module_param(usbfs_snoop, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(usbfs_snoop, "true to log all usbfs traffic");
 
 #define snoop(dev, format, arg...)				\
 	do {							\
 		if (usbfs_snoop)				\
-			dev_info( dev , format , ## arg);	\
+			dev_info(dev , format , ## arg);	\
 	} while (0)
 
 #define USB_DEVICE_DEV		MKDEV(USB_DEVICE_MAJOR, 0)
@@ -90,7 +90,7 @@ MODULE_PARM_DESC (usbfs_snoop, "true to log all usbfs traffic");
 
 #define	MAX_USBFS_BUFFER_SIZE	16384
 
-static inline int connected (struct dev_state *ps)
+static inline int connected(struct dev_state *ps)
 {
 	return (!list_empty(&ps->list) &&
 			ps->dev->state != USB_STATE_NOTATTACHED);
@@ -120,7 +120,8 @@ static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig)
 	return ret;
 }
 
-static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
+			   loff_t *ppos)
 {
 	struct dev_state *ps = file->private_data;
 	struct usb_device *dev = ps->dev;
@@ -140,7 +141,8 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, l
 	}
 
 	if (pos < sizeof(struct usb_device_descriptor)) {
-		struct usb_device_descriptor temp_desc ; /* 18 bytes - fits on the stack */
+		/* 18 bytes - fits on the stack */
+		struct usb_device_descriptor temp_desc;
 
 		memcpy(&temp_desc, &dev->descriptor, sizeof(dev->descriptor));
 		le16_to_cpus(&temp_desc.bcdUSB);
@@ -210,17 +212,17 @@ err:
 
 static struct async *alloc_async(unsigned int numisoframes)
 {
-        unsigned int assize = sizeof(struct async) + numisoframes * sizeof(struct usb_iso_packet_descriptor);
-        struct async *as = kzalloc(assize, GFP_KERNEL);
+	struct async *as;
 
-        if (!as)
-                return NULL;
+	as = kzalloc(sizeof(struct async), GFP_KERNEL);
+	if (!as)
+		return NULL;
 	as->urb = usb_alloc_urb(numisoframes, GFP_KERNEL);
 	if (!as->urb) {
 		kfree(as);
 		return NULL;
 	}
-        return as;
+	return as;
 }
 
 static void free_async(struct async *as)
@@ -234,52 +236,54 @@ static void free_async(struct async *as)
 
 static inline void async_newpending(struct async *as)
 {
-        struct dev_state *ps = as->ps;
-        unsigned long flags;
-        
-        spin_lock_irqsave(&ps->lock, flags);
-        list_add_tail(&as->asynclist, &ps->async_pending);
-        spin_unlock_irqrestore(&ps->lock, flags);
+	struct dev_state *ps = as->ps;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->lock, flags);
+	list_add_tail(&as->asynclist, &ps->async_pending);
+	spin_unlock_irqrestore(&ps->lock, flags);
 }
 
 static inline void async_removepending(struct async *as)
 {
-        struct dev_state *ps = as->ps;
-        unsigned long flags;
-        
-        spin_lock_irqsave(&ps->lock, flags);
-        list_del_init(&as->asynclist);
-        spin_unlock_irqrestore(&ps->lock, flags);
+	struct dev_state *ps = as->ps;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->lock, flags);
+	list_del_init(&as->asynclist);
+	spin_unlock_irqrestore(&ps->lock, flags);
 }
 
 static inline struct async *async_getcompleted(struct dev_state *ps)
 {
-        unsigned long flags;
-        struct async *as = NULL;
-
-        spin_lock_irqsave(&ps->lock, flags);
-        if (!list_empty(&ps->async_completed)) {
-                as = list_entry(ps->async_completed.next, struct async, asynclist);
-                list_del_init(&as->asynclist);
-        }
-        spin_unlock_irqrestore(&ps->lock, flags);
-        return as;
+	unsigned long flags;
+	struct async *as = NULL;
+
+	spin_lock_irqsave(&ps->lock, flags);
+	if (!list_empty(&ps->async_completed)) {
+		as = list_entry(ps->async_completed.next, struct async,
+				asynclist);
+		list_del_init(&as->asynclist);
+	}
+	spin_unlock_irqrestore(&ps->lock, flags);
+	return as;
 }
 
-static inline struct async *async_getpending(struct dev_state *ps, void __user *userurb)
+static inline struct async *async_getpending(struct dev_state *ps,
+					     void __user *userurb)
 {
-        unsigned long flags;
-        struct async *as;
+	unsigned long flags;
+	struct async *as;
 
-        spin_lock_irqsave(&ps->lock, flags);
+	spin_lock_irqsave(&ps->lock, flags);
 	list_for_each_entry(as, &ps->async_pending, asynclist)
 		if (as->userurb == userurb) {
 			list_del_init(&as->asynclist);
 			spin_unlock_irqrestore(&ps->lock, flags);
 			return as;
 		}
-        spin_unlock_irqrestore(&ps->lock, flags);
-        return NULL;
+	spin_unlock_irqrestore(&ps->lock, flags);
+	return NULL;
 }
 
 static void snoop_urb(struct urb *urb, void __user *userurb)
@@ -298,19 +302,19 @@ static void snoop_urb(struct urb *urb, void __user *userurb)
 	dev_info(&urb->dev->dev, "actual_length=%d\n", urb->actual_length);
 	dev_info(&urb->dev->dev, "data: ");
 	for (j = 0; j < urb->transfer_buffer_length; ++j)
-		printk ("%02x ", data[j]);
+		printk("%02x ", data[j]);
 	printk("\n");
 }
 
 static void async_completed(struct urb *urb)
 {
-        struct async *as = urb->context;
-        struct dev_state *ps = as->ps;
+	struct async *as = urb->context;
+	struct dev_state *ps = as->ps;
 	struct siginfo sinfo;
 
-        spin_lock(&ps->lock);
-        list_move_tail(&as->asynclist, &ps->async_completed);
-        spin_unlock(&ps->lock);
+	spin_lock(&ps->lock);
+	list_move_tail(&as->asynclist, &ps->async_completed);
+	spin_unlock(&ps->lock);
 	as->status = urb->status;
 	if (as->signr) {
 		sinfo.si_signo = as->signr;
@@ -325,7 +329,7 @@ static void async_completed(struct urb *urb)
 	wake_up(&ps->wait);
 }
 
-static void destroy_async (struct dev_state *ps, struct list_head *list)
+static void destroy_async(struct dev_state *ps, struct list_head *list)
 {
 	struct async *as;
 	unsigned long flags;
@@ -348,7 +352,8 @@ static void destroy_async (struct dev_state *ps, struct list_head *list)
 	}
 }
 
-static void destroy_async_on_interface (struct dev_state *ps, unsigned int ifnum)
+static void destroy_async_on_interface(struct dev_state *ps,
+				       unsigned int ifnum)
 {
 	struct list_head *p, *q, hitlist;
 	unsigned long flags;
@@ -364,7 +369,7 @@ static void destroy_async_on_interface (struct dev_state *ps, unsigned int ifnum
 
 static inline void destroy_all_async(struct dev_state *ps)
 {
-	        destroy_async(ps, &ps->async_pending);
+	destroy_async(ps, &ps->async_pending);
 }
 
 /*
@@ -373,15 +378,15 @@ static inline void destroy_all_async(struct dev_state *ps)
  * they're also undone when devices disconnect.
  */
 
-static int driver_probe (struct usb_interface *intf,
-			 const struct usb_device_id *id)
+static int driver_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
 {
 	return -ENODEV;
 }
 
 static void driver_disconnect(struct usb_interface *intf)
 {
-	struct dev_state *ps = usb_get_intfdata (intf);
+	struct dev_state *ps = usb_get_intfdata(intf);
 	unsigned int ifnum = intf->altsetting->desc.bInterfaceNumber;
 
 	if (!ps)
@@ -396,16 +401,31 @@ static void driver_disconnect(struct usb_interface *intf)
 	else
 		warn("interface number %u out of range", ifnum);
 
-	usb_set_intfdata (intf, NULL);
+	usb_set_intfdata(intf, NULL);
 
 	/* force async requests to complete */
 	destroy_async_on_interface(ps, ifnum);
 }
 
+/* The following routines are merely placeholders.  There is no way
+ * to inform a user task about suspend or resumes.
+ */
+static int driver_suspend(struct usb_interface *intf, pm_message_t msg)
+{
+	return 0;
+}
+
+static int driver_resume(struct usb_interface *intf)
+{
+	return 0;
+}
+
 struct usb_driver usbfs_driver = {
 	.name =		"usbfs",
 	.probe =	driver_probe,
 	.disconnect =	driver_disconnect,
+	.suspend =	driver_suspend,
+	.resume =	driver_resume,
 };
 
 static int claimintf(struct dev_state *ps, unsigned int ifnum)
@@ -459,15 +479,16 @@ static int checkintf(struct dev_state *ps, unsigned int ifnum)
 	if (test_bit(ifnum, &ps->ifclaimed))
 		return 0;
 	/* if not yet claimed, claim it for the driver */
-	dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim interface %u before use\n",
-	       task_pid_nr(current), current->comm, ifnum);
+	dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim "
+		 "interface %u before use\n", task_pid_nr(current),
+		 current->comm, ifnum);
 	return claimintf(ps, ifnum);
 }
 
 static int findintfep(struct usb_device *dev, unsigned int ep)
 {
 	unsigned int i, j, e;
-        struct usb_interface *intf;
+	struct usb_interface *intf;
 	struct usb_host_interface *alts;
 	struct usb_endpoint_descriptor *endpt;
 
@@ -478,7 +499,7 @@ static int findintfep(struct usb_device *dev, unsigned int ep)
 	for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
 		intf = dev->actconfig->interface[i];
 		for (j = 0; j < intf->num_altsetting; j++) {
-                        alts = &intf->altsetting[j];
+			alts = &intf->altsetting[j];
 			for (e = 0; e < alts->desc.bNumEndpoints; e++) {
 				endpt = &alts->endpoint[e].desc;
 				if (endpt->bEndpointAddress == ep)
@@ -486,10 +507,11 @@ static int findintfep(struct usb_device *dev, unsigned int ep)
 			}
 		}
 	}
-	return -ENOENT; 
+	return -ENOENT;
 }
 
-static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsigned int index)
+static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
+			   unsigned int index)
 {
 	int ret = 0;
 
@@ -502,7 +524,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsig
 	index &= 0xff;
 	switch (requesttype & USB_RECIP_MASK) {
 	case USB_RECIP_ENDPOINT:
-		if ((ret = findintfep(ps->dev, index)) >= 0)
+		ret = findintfep(ps->dev, index);
+		if (ret >= 0)
 			ret = checkintf(ps, ret);
 		break;
 
@@ -546,7 +569,8 @@ static int usbdev_open(struct inode *inode, struct file *file)
 	mutex_lock(&usbfs_mutex);
 
 	ret = -ENOMEM;
-	if (!(ps = kmalloc(sizeof(struct dev_state), GFP_KERNEL)))
+	ps = kmalloc(sizeof(struct dev_state), GFP_KERNEL);
+	if (!ps)
 		goto out;
 
 	ret = -ENOENT;
@@ -627,15 +651,18 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 
 	if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
 		return -EFAULT;
-	if ((ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.wIndex)))
+	ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.wIndex);
+	if (ret)
 		return ret;
 	if (ctrl.wLength > PAGE_SIZE)
 		return -EINVAL;
-	if (!(tbuf = (unsigned char *)__get_free_page(GFP_KERNEL)))
+	tbuf = (unsigned char *)__get_free_page(GFP_KERNEL);
+	if (!tbuf)
 		return -ENOMEM;
 	tmo = ctrl.timeout;
 	if (ctrl.bRequestType & 0x80) {
-		if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data, ctrl.wLength)) {
+		if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
+					       ctrl.wLength)) {
 			free_page((unsigned long)tbuf);
 			return -EINVAL;
 		}
@@ -646,14 +673,15 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 				ctrl.wIndex, ctrl.wLength);
 
 		usb_unlock_device(dev);
-		i = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ctrl.bRequest, ctrl.bRequestType,
-				       ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo);
+		i = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ctrl.bRequest,
+				    ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
+				    tbuf, ctrl.wLength, tmo);
 		usb_lock_device(dev);
 		if ((i > 0) && ctrl.wLength) {
 			if (usbfs_snoop) {
 				dev_info(&dev->dev, "control read: data ");
 				for (j = 0; j < i; ++j)
-					printk("%02x ", (unsigned char)(tbuf)[j]);
+					printk("%02x ", (u8)(tbuf)[j]);
 				printk("\n");
 			}
 			if (copy_to_user(ctrl.data, tbuf, i)) {
@@ -680,12 +708,13 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 			printk("\n");
 		}
 		usb_unlock_device(dev);
-		i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest, ctrl.bRequestType,
-				       ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo);
+		i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest,
+				    ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
+				    tbuf, ctrl.wLength, tmo);
 		usb_lock_device(dev);
 	}
 	free_page((unsigned long)tbuf);
-	if (i<0 && i != -EPIPE) {
+	if (i < 0 && i != -EPIPE) {
 		dev_printk(KERN_DEBUG, &dev->dev, "usbfs: USBDEVFS_CONTROL "
 			   "failed cmd %s rqt %u rq %u len %u ret %d\n",
 			   current->comm, ctrl.bRequestType, ctrl.bRequest,
@@ -705,9 +734,11 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
 
 	if (copy_from_user(&bulk, arg, sizeof(bulk)))
 		return -EFAULT;
-	if ((ret = findintfep(ps->dev, bulk.ep)) < 0)
+	ret = findintfep(ps->dev, bulk.ep);
+	if (ret < 0)
 		return ret;
-	if ((ret = checkintf(ps, ret)))
+	ret = checkintf(ps, ret);
+	if (ret)
 		return ret;
 	if (bulk.ep & USB_DIR_IN)
 		pipe = usb_rcvbulkpipe(dev, bulk.ep & 0x7f);
@@ -735,7 +766,7 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
 			if (usbfs_snoop) {
 				dev_info(&dev->dev, "bulk read: data ");
 				for (j = 0; j < len2; ++j)
-					printk("%02x ", (unsigned char)(tbuf)[j]);
+					printk("%02x ", (u8)(tbuf)[j]);
 				printk("\n");
 			}
 			if (copy_to_user(bulk.data, tbuf, len2)) {
@@ -775,9 +806,11 @@ static int proc_resetep(struct dev_state *ps, void __user *arg)
 
 	if (get_user(ep, (unsigned int __user *)arg))
 		return -EFAULT;
-	if ((ret = findintfep(ps->dev, ep)) < 0)
+	ret = findintfep(ps->dev, ep);
+	if (ret < 0)
 		return ret;
-	if ((ret = checkintf(ps, ret)))
+	ret = checkintf(ps, ret);
+	if (ret)
 		return ret;
 	usb_settoggle(ps->dev, ep & 0xf, !(ep & USB_DIR_IN), 0);
 	return 0;
@@ -791,18 +824,19 @@ static int proc_clearhalt(struct dev_state *ps, void __user *arg)
 
 	if (get_user(ep, (unsigned int __user *)arg))
 		return -EFAULT;
-	if ((ret = findintfep(ps->dev, ep)) < 0)
+	ret = findintfep(ps->dev, ep);
+	if (ret < 0)
 		return ret;
-	if ((ret = checkintf(ps, ret)))
+	ret = checkintf(ps, ret);
+	if (ret)
 		return ret;
 	if (ep & USB_DIR_IN)
-                pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f);
-        else
-                pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f);
+		pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f);
+	else
+		pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f);
 
 	return usb_clear_halt(ps->dev, pipe);
 }
-		
 
 static int proc_getdriver(struct dev_state *ps, void __user *arg)
 {
@@ -856,23 +890,23 @@ static int proc_setconfig(struct dev_state *ps, void __user *arg)
 {
 	int u;
 	int status = 0;
- 	struct usb_host_config *actconfig;
+	struct usb_host_config *actconfig;
 
 	if (get_user(u, (int __user *)arg))
 		return -EFAULT;
 
- 	actconfig = ps->dev->actconfig;
- 
- 	/* Don't touch the device if any interfaces are claimed.
- 	 * It could interfere with other drivers' operations, and if
+	actconfig = ps->dev->actconfig;
+
+	/* Don't touch the device if any interfaces are claimed.
+	 * It could interfere with other drivers' operations, and if
 	 * an interface is claimed by usbfs it could easily deadlock.
 	 */
- 	if (actconfig) {
- 		int i;
- 
- 		for (i = 0; i < actconfig->desc.bNumInterfaces; ++i) {
- 			if (usb_interface_claimed(actconfig->interface[i])) {
-				dev_warn (&ps->dev->dev,
+	if (actconfig) {
+		int i;
+
+		for (i = 0; i < actconfig->desc.bNumInterfaces; ++i) {
+			if (usb_interface_claimed(actconfig->interface[i])) {
+				dev_warn(&ps->dev->dev,
 					"usbfs: interface %d claimed by %s "
 					"while '%s' sets config #%d\n",
 					actconfig->interface[i]
@@ -881,11 +915,11 @@ static int proc_setconfig(struct dev_state *ps, void __user *arg)
 					actconfig->interface[i]
 						->dev.driver->name,
 					current->comm, u);
- 				status = -EBUSY;
+				status = -EBUSY;
 				break;
 			}
- 		}
- 	}
+		}
+	}
 
 	/* SET_CONFIGURATION is often abused as a "cheap" driver reset,
 	 * so avoid usb_set_configuration()'s kick to sysfs
@@ -901,8 +935,8 @@ static int proc_setconfig(struct dev_state *ps, void __user *arg)
 }
 
 static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
-			     struct usbdevfs_iso_packet_desc __user *iso_frame_desc,
-			     void __user *arg)
+			struct usbdevfs_iso_packet_desc __user *iso_frame_desc,
+			void __user *arg)
 {
 	struct usbdevfs_iso_packet_desc *isopkt = NULL;
 	struct usb_host_endpoint *ep;
@@ -917,12 +951,16 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		return -EINVAL;
 	if (!uurb->buffer)
 		return -EINVAL;
-	if (uurb->signr != 0 && (uurb->signr < SIGRTMIN || uurb->signr > SIGRTMAX))
+	if (uurb->signr != 0 && (uurb->signr < SIGRTMIN ||
+				 uurb->signr > SIGRTMAX))
 		return -EINVAL;
-	if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL && (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
-		if ((ifnum = findintfep(ps->dev, uurb->endpoint)) < 0)
+	if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL &&
+	    (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
+		ifnum = findintfep(ps->dev, uurb->endpoint);
+		if (ifnum < 0)
 			return ifnum;
-		if ((ret = checkintf(ps, ifnum)))
+		ret = checkintf(ps, ifnum);
+		if (ret)
 			return ret;
 	}
 	if ((uurb->endpoint & USB_ENDPOINT_DIR_MASK) != 0) {
@@ -938,10 +976,13 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	case USBDEVFS_URB_TYPE_CONTROL:
 		if (!usb_endpoint_xfer_control(&ep->desc))
 			return -EINVAL;
-		/* min 8 byte setup packet, max 8 byte setup plus an arbitrary data stage */
-		if (uurb->buffer_length < 8 || uurb->buffer_length > (8 + MAX_USBFS_BUFFER_SIZE))
+		/* min 8 byte setup packet,
+		 * max 8 byte setup plus an arbitrary data stage */
+		if (uurb->buffer_length < 8 ||
+		    uurb->buffer_length > (8 + MAX_USBFS_BUFFER_SIZE))
 			return -EINVAL;
-		if (!(dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL)))
+		dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
+		if (!dr)
 			return -ENOMEM;
 		if (copy_from_user(dr, uurb->buffer, 8)) {
 			kfree(dr);
@@ -951,7 +992,9 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 			kfree(dr);
 			return -EINVAL;
 		}
-		if ((ret = check_ctrlrecip(ps, dr->bRequestType, le16_to_cpup(&dr->wIndex)))) {
+		ret = check_ctrlrecip(ps, dr->bRequestType,
+				      le16_to_cpup(&dr->wIndex));
+		if (ret) {
 			kfree(dr);
 			return ret;
 		}
@@ -997,11 +1040,13 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 
 	case USBDEVFS_URB_TYPE_ISO:
 		/* arbitrary limit */
-		if (uurb->number_of_packets < 1 || uurb->number_of_packets > 128)
+		if (uurb->number_of_packets < 1 ||
+		    uurb->number_of_packets > 128)
 			return -EINVAL;
 		if (!usb_endpoint_xfer_isoc(&ep->desc))
 			return -EINVAL;
-		isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) * uurb->number_of_packets;
+		isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) *
+				   uurb->number_of_packets;
 		if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
 			return -ENOMEM;
 		if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
@@ -1009,7 +1054,8 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 			return -EFAULT;
 		}
 		for (totlen = u = 0; u < uurb->number_of_packets; u++) {
-			/* arbitrary limit, sufficient for USB 2.0 high-bandwidth iso */
+			/* arbitrary limit,
+			 * sufficient for USB 2.0 high-bandwidth iso */
 			if (isopkt[u].length > 8192) {
 				kfree(isopkt);
 				return -EINVAL;
@@ -1039,25 +1085,27 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	default:
 		return -EINVAL;
 	}
-	if (!(as = alloc_async(uurb->number_of_packets))) {
+	as = alloc_async(uurb->number_of_packets);
+	if (!as) {
 		kfree(isopkt);
 		kfree(dr);
 		return -ENOMEM;
 	}
-	if (!(as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL))) {
+	as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL);
+	if (!as->urb->transfer_buffer) {
 		kfree(isopkt);
 		kfree(dr);
 		free_async(as);
 		return -ENOMEM;
 	}
-        as->urb->dev = ps->dev;
-        as->urb->pipe = (uurb->type << 30) |
+	as->urb->dev = ps->dev;
+	as->urb->pipe = (uurb->type << 30) |
 			__create_pipe(ps->dev, uurb->endpoint & 0xf) |
 			(uurb->endpoint & USB_DIR_IN);
-        as->urb->transfer_flags = uurb->flags |
+	as->urb->transfer_flags = uurb->flags |
 			(is_in ? URB_DIR_IN : URB_DIR_OUT);
 	as->urb->transfer_buffer_length = uurb->buffer_length;
-	as->urb->setup_packet = (unsigned char*)dr;
+	as->urb->setup_packet = (unsigned char *)dr;
 	as->urb->start_frame = uurb->start_frame;
 	as->urb->number_of_packets = uurb->number_of_packets;
 	if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
@@ -1065,8 +1113,8 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		as->urb->interval = 1 << min(15, ep->desc.bInterval - 1);
 	else
 		as->urb->interval = ep->desc.bInterval;
-        as->urb->context = as;
-        as->urb->complete = async_completed;
+	as->urb->context = as;
+	as->urb->complete = async_completed;
 	for (totlen = u = 0; u < uurb->number_of_packets; u++) {
 		as->urb->iso_frame_desc[u].offset = totlen;
 		as->urb->iso_frame_desc[u].length = isopkt[u].length;
@@ -1074,7 +1122,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	}
 	kfree(isopkt);
 	as->ps = ps;
-        as->userurb = arg;
+	as->userurb = arg;
 	if (uurb->endpoint & USB_DIR_IN)
 		as->userbuffer = uurb->buffer;
 	else
@@ -1093,14 +1141,15 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		}
 	}
 	snoop_urb(as->urb, as->userurb);
-        async_newpending(as);
-        if ((ret = usb_submit_urb(as->urb, GFP_KERNEL))) {
-		dev_printk(KERN_DEBUG, &ps->dev->dev, "usbfs: usb_submit_urb returned %d\n", ret);
-                async_removepending(as);
-                free_async(as);
-                return ret;
-        }
-        return 0;
+	async_newpending(as);
+	if ((ret = usb_submit_urb(as->urb, GFP_KERNEL))) {
+		dev_printk(KERN_DEBUG, &ps->dev->dev,
+			   "usbfs: usb_submit_urb returned %d\n", ret);
+		async_removepending(as);
+		free_async(as);
+		return ret;
+	}
+	return 0;
 }
 
 static int proc_submiturb(struct dev_state *ps, void __user *arg)
@@ -1110,7 +1159,9 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
 	if (copy_from_user(&uurb, arg, sizeof(uurb)))
 		return -EFAULT;
 
-	return proc_do_submiturb(ps, &uurb, (((struct usbdevfs_urb __user *)arg)->iso_frame_desc), arg);
+	return proc_do_submiturb(ps, &uurb,
+			(((struct usbdevfs_urb __user *)arg)->iso_frame_desc),
+			arg);
 }
 
 static int proc_unlinkurb(struct dev_state *ps, void __user *arg)
@@ -1132,7 +1183,8 @@ static int processcompl(struct async *as, void __user * __user *arg)
 	unsigned int i;
 
 	if (as->userbuffer)
-		if (copy_to_user(as->userbuffer, urb->transfer_buffer, urb->transfer_buffer_length))
+		if (copy_to_user(as->userbuffer, urb->transfer_buffer,
+				 urb->transfer_buffer_length))
 			return -EFAULT;
 	if (put_user(as->status, &userurb->status))
 		return -EFAULT;
@@ -1159,16 +1211,17 @@ static int processcompl(struct async *as, void __user * __user *arg)
 	return 0;
 }
 
-static struct async* reap_as(struct dev_state *ps)
+static struct async *reap_as(struct dev_state *ps)
 {
-        DECLARE_WAITQUEUE(wait, current);
+	DECLARE_WAITQUEUE(wait, current);
 	struct async *as = NULL;
 	struct usb_device *dev = ps->dev;
 
 	add_wait_queue(&ps->wait, &wait);
 	for (;;) {
 		__set_current_state(TASK_INTERRUPTIBLE);
-		if ((as = async_getcompleted(ps)))
+		as = async_getcompleted(ps);
+		if (as)
 			break;
 		if (signal_pending(current))
 			break;
@@ -1232,10 +1285,12 @@ static int proc_submiturb_compat(struct dev_state *ps, void __user *arg)
 {
 	struct usbdevfs_urb uurb;
 
-	if (get_urb32(&uurb,(struct usbdevfs_urb32 __user *)arg))
+	if (get_urb32(&uurb, (struct usbdevfs_urb32 __user *)arg))
 		return -EFAULT;
 
-	return proc_do_submiturb(ps, &uurb, ((struct usbdevfs_urb32 __user *)arg)->iso_frame_desc, arg);
+	return proc_do_submiturb(ps, &uurb,
+			((struct usbdevfs_urb32 __user *)arg)->iso_frame_desc,
+			arg);
 }
 
 static int processcompl_compat(struct async *as, void __user * __user *arg)
@@ -1246,7 +1301,8 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
 	unsigned int i;
 
 	if (as->userbuffer)
-		if (copy_to_user(as->userbuffer, urb->transfer_buffer, urb->transfer_buffer_length))
+		if (copy_to_user(as->userbuffer, urb->transfer_buffer,
+				 urb->transfer_buffer_length))
 			return -EFAULT;
 	if (put_user(as->status, &userurb->status))
 		return -EFAULT;
@@ -1337,16 +1393,16 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
 	struct usb_driver       *driver = NULL;
 
 	/* alloc buffer */
-	if ((size = _IOC_SIZE (ctl->ioctl_code)) > 0) {
-		if ((buf = kmalloc (size, GFP_KERNEL)) == NULL)
+	if ((size = _IOC_SIZE(ctl->ioctl_code)) > 0) {
+		if ((buf = kmalloc(size, GFP_KERNEL)) == NULL)
 			return -ENOMEM;
 		if ((_IOC_DIR(ctl->ioctl_code) & _IOC_WRITE)) {
-			if (copy_from_user (buf, ctl->data, size)) {
+			if (copy_from_user(buf, ctl->data, size)) {
 				kfree(buf);
 				return -EFAULT;
 			}
 		} else {
-			memset (buf, 0, size);
+			memset(buf, 0, size);
 		}
 	}
 
@@ -1357,15 +1413,15 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
 
 	if (ps->dev->state != USB_STATE_CONFIGURED)
 		retval = -EHOSTUNREACH;
-	else if (!(intf = usb_ifnum_to_if (ps->dev, ctl->ifno)))
-               retval = -EINVAL;
+	else if (!(intf = usb_ifnum_to_if(ps->dev, ctl->ifno)))
+		retval = -EINVAL;
 	else switch (ctl->ioctl_code) {
 
 	/* disconnect kernel driver from interface */
 	case USBDEVFS_DISCONNECT:
 		if (intf->dev.driver) {
 			driver = to_usb_driver(intf->dev.driver);
-			dev_dbg (&intf->dev, "disconnect by usbfs\n");
+			dev_dbg(&intf->dev, "disconnect by usbfs\n");
 			usb_driver_release_interface(driver, intf);
 		} else
 			retval = -ENODATA;
@@ -1373,9 +1429,10 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
 
 	/* let kernel drivers try to (re)bind to the interface */
 	case USBDEVFS_CONNECT:
-		usb_unlock_device(ps->dev);
-		retval = bus_rescan_devices(intf->dev.bus);
-		usb_lock_device(ps->dev);
+		if (!intf->dev.driver)
+			retval = device_attach(&intf->dev);
+		else
+			retval = -EBUSY;
 		break;
 
 	/* talk directly to the interface's driver */
@@ -1385,7 +1442,7 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
 		if (driver == NULL || driver->ioctl == NULL) {
 			retval = -ENOTTY;
 		} else {
-			retval = driver->ioctl (intf, ctl->ioctl_code, buf);
+			retval = driver->ioctl(intf, ctl->ioctl_code, buf);
 			if (retval == -ENOIOCTLCMD)
 				retval = -ENOTTY;
 		}
@@ -1393,9 +1450,9 @@ static int proc_ioctl(struct dev_state *ps, struct usbdevfs_ioctl *ctl)
 
 	/* cleanup and return */
 	if (retval >= 0
-			&& (_IOC_DIR (ctl->ioctl_code) & _IOC_READ) != 0
+			&& (_IOC_DIR(ctl->ioctl_code) & _IOC_READ) != 0
 			&& size > 0
-			&& copy_to_user (ctl->data, buf, size) != 0)
+			&& copy_to_user(ctl->data, buf, size) != 0)
 		retval = -EFAULT;
 
 	kfree(buf);
@@ -1406,7 +1463,7 @@ static int proc_ioctl_default(struct dev_state *ps, void __user *arg)
 {
 	struct usbdevfs_ioctl	ctrl;
 
-	if (copy_from_user(&ctrl, arg, sizeof (ctrl)))
+	if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
 		return -EFAULT;
 	return proc_ioctl(ps, &ctrl);
 }
@@ -1434,7 +1491,8 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg)
  * are assuming that somehow the configuration has been prevented from
  * changing.  But there's no mechanism to ensure that...
  */
-static int usbdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int usbdev_ioctl(struct inode *inode, struct file *file,
+			unsigned int cmd, unsigned long arg)
 {
 	struct dev_state *ps = file->private_data;
 	struct usb_device *dev = ps->dev;
@@ -1577,7 +1635,8 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 }
 
 /* No kernel lock - fine */
-static unsigned int usbdev_poll(struct file *file, struct poll_table_struct *wait)
+static unsigned int usbdev_poll(struct file *file,
+				struct poll_table_struct *wait)
 {
 	struct dev_state *ps = file->private_data;
 	unsigned int mask = 0;
@@ -1648,7 +1707,7 @@ int __init usb_devio_init(void)
 	int retval;
 
 	retval = register_chrdev_region(USB_DEVICE_DEV, USB_DEVICE_MAX,
-			"usb_device");
+					"usb_device");
 	if (retval) {
 		err("unable to register minors for usb_device");
 		goto out;

drivers/usb/core/driver.c

@@ -202,10 +202,10 @@ static int usb_probe_interface(struct device *dev)
 	intf = to_usb_interface(dev);
 	udev = interface_to_usbdev(intf);
 
- 	if (udev->authorized == 0) {
- 		dev_err(&intf->dev, "Device is not authorized for usage\n");
- 		return -ENODEV;
- 	}
+	if (udev->authorized == 0) {
+		dev_err(&intf->dev, "Device is not authorized for usage\n");
+		return -ENODEV;
+	}
 
 	id = usb_match_id(intf, driver->id_table);
 	if (!id)
@@ -299,7 +299,7 @@ static int usb_unbind_interface(struct device *dev)
  * lock.
  */
 int usb_driver_claim_interface(struct usb_driver *driver,
-				struct usb_interface *iface, void* priv)
+				struct usb_interface *iface, void *priv)
 {
 	struct device *dev = &iface->dev;
 	struct usb_device *udev = interface_to_usbdev(iface);
@@ -325,7 +325,7 @@ int usb_driver_claim_interface(struct usb_driver *driver,
 
 	return retval;
 }
-EXPORT_SYMBOL(usb_driver_claim_interface);
+EXPORT_SYMBOL_GPL(usb_driver_claim_interface);
 
 /**
  * usb_driver_release_interface - unbind a driver from an interface
@@ -370,7 +370,7 @@ void usb_driver_release_interface(struct usb_driver *driver,
 	iface->needs_remote_wakeup = 0;
 	usb_pm_unlock(udev);
 }
-EXPORT_SYMBOL(usb_driver_release_interface);
+EXPORT_SYMBOL_GPL(usb_driver_release_interface);
 
 /* returns 0 if no match, 1 if match */
 int usb_match_device(struct usb_device *dev, const struct usb_device_id *id)
@@ -398,7 +398,7 @@ int usb_match_device(struct usb_device *dev, const struct usb_device_id *id)
 		return 0;
 
 	if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
-	    (id->bDeviceSubClass!= dev->descriptor.bDeviceSubClass))
+	    (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass))
 		return 0;
 
 	if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&
@@ -534,15 +534,15 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface,
 	   id->driver_info is the way to create an entry that
 	   indicates that the driver want to examine every
 	   device and interface. */
-	for (; id->idVendor || id->bDeviceClass || id->bInterfaceClass ||
-	       id->driver_info; id++) {
+	for (; id->idVendor || id->idProduct || id->bDeviceClass ||
+	       id->bInterfaceClass || id->driver_info; id++) {
 		if (usb_match_one_id(interface, id))
 			return id;
 	}
 
 	return NULL;
 }
-EXPORT_SYMBOL_GPL_FUTURE(usb_match_id);
+EXPORT_SYMBOL_GPL(usb_match_id);
 
 static int usb_device_match(struct device *dev, struct device_driver *drv)
 {
@@ -586,7 +586,7 @@ static int usb_uevent(struct device *dev, struct kobj_uevent_env *env)
 	struct usb_device *usb_dev;
 
 	/* driver is often null here; dev_dbg() would oops */
-	pr_debug ("usb %s: uevent\n", dev->bus_id);
+	pr_debug("usb %s: uevent\n", dev->bus_id);
 
 	if (is_usb_device(dev))
 		usb_dev = to_usb_device(dev);
@@ -596,11 +596,11 @@ static int usb_uevent(struct device *dev, struct kobj_uevent_env *env)
 	}
 
 	if (usb_dev->devnum < 0) {
-		pr_debug ("usb %s: already deleted?\n", dev->bus_id);
+		pr_debug("usb %s: already deleted?\n", dev->bus_id);
 		return -ENODEV;
 	}
 	if (!usb_dev->bus) {
-		pr_debug ("usb %s: bus removed?\n", dev->bus_id);
+		pr_debug("usb %s: bus removed?\n", dev->bus_id);
 		return -ENODEV;
 	}
 
@@ -745,7 +745,7 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner,
 
 	return retval;
 }
-EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver);
+EXPORT_SYMBOL_GPL(usb_register_driver);
 
 /**
  * usb_deregister - unregister a USB interface driver
@@ -769,7 +769,7 @@ void usb_deregister(struct usb_driver *driver)
 
 	usbfs_update_special();
 }
-EXPORT_SYMBOL_GPL_FUTURE(usb_deregister);
+EXPORT_SYMBOL_GPL(usb_deregister);
 
 #ifdef CONFIG_PM
 
@@ -854,8 +854,10 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg)
 			dev_err(&intf->dev, "%s error %d\n",
 					"suspend", status);
 	} else {
-		// FIXME else if there's no suspend method, disconnect...
-		// Not possible if auto_pm is set...
+		/*
+		 * FIXME else if there's no suspend method, disconnect...
+		 * Not possible if auto_pm is set...
+		 */
 		dev_warn(&intf->dev, "no suspend for driver %s?\n",
 				driver->name);
 		mark_quiesced(intf);
@@ -894,7 +896,7 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
 				dev_err(&intf->dev, "%s error %d\n",
 						"reset_resume", status);
 		} else {
-			// status = -EOPNOTSUPP;
+			/* status = -EOPNOTSUPP; */
 			dev_warn(&intf->dev, "no %s for driver %s?\n",
 					"reset_resume", driver->name);
 		}
@@ -905,7 +907,7 @@ static int usb_resume_interface(struct usb_interface *intf, int reset_resume)
 				dev_err(&intf->dev, "%s error %d\n",
 						"resume", status);
 		} else {
-			// status = -EOPNOTSUPP;
+			/* status = -EOPNOTSUPP; */
 			dev_warn(&intf->dev, "no %s for driver %s?\n",
 					"resume", driver->name);
 		}
@@ -1175,7 +1177,7 @@ static int usb_resume_both(struct usb_device *udev)
 			 * so if a root hub's controller is suspended
 			 * then we're stuck. */
 			status = usb_resume_device(udev);
- 		}
+		}
 	} else {
 
 		/* Needed for setting udev->dev.power.power_state.event,

drivers/usb/core/file.c

@@ -204,7 +204,7 @@ int usb_register_dev(struct usb_interface *intf,
 exit:
 	return retval;
 }
-EXPORT_SYMBOL(usb_register_dev);
+EXPORT_SYMBOL_GPL(usb_register_dev);
 
 /**
  * usb_deregister_dev - deregister a USB device's dynamic minor.
@@ -245,4 +245,4 @@ void usb_deregister_dev(struct usb_interface *intf,
 	intf->minor = -1;
 	destroy_usb_class();
 }
-EXPORT_SYMBOL(usb_deregister_dev);
+EXPORT_SYMBOL_GPL(usb_deregister_dev);

drivers/usb/core/hcd-pci.c

@@ -1,6 +1,6 @@
 /*
  * (C) Copyright David Brownell 2000-2002
- * 
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 of the License, or (at your
@@ -55,7 +55,7 @@
  *
  * Store this function in the HCD's struct pci_driver as probe().
  */
-int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id)
+int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	struct hc_driver	*driver;
 	struct usb_hcd		*hcd;
@@ -64,66 +64,71 @@ int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id)
 	if (usb_disabled())
 		return -ENODEV;
 
-	if (!id || !(driver = (struct hc_driver *) id->driver_data))
+	if (!id)
+		return -EINVAL;
+	driver = (struct hc_driver *)id->driver_data;
+	if (!driver)
 		return -EINVAL;
 
-	if (pci_enable_device (dev) < 0)
+	if (pci_enable_device(dev) < 0)
 		return -ENODEV;
 	dev->current_state = PCI_D0;
 	dev->dev.power.power_state = PMSG_ON;
-	
-        if (!dev->irq) {
-        	dev_err (&dev->dev,
+
+	if (!dev->irq) {
+		dev_err(&dev->dev,
 			"Found HC with no IRQ.  Check BIOS/PCI %s setup!\n",
 			pci_name(dev));
-   	        retval = -ENODEV;
+		retval = -ENODEV;
 		goto err1;
-        }
+	}
 
-	hcd = usb_create_hcd (driver, &dev->dev, pci_name(dev));
+	hcd = usb_create_hcd(driver, &dev->dev, pci_name(dev));
 	if (!hcd) {
 		retval = -ENOMEM;
 		goto err1;
 	}
 
-	if (driver->flags & HCD_MEMORY) {	// EHCI, OHCI
-		hcd->rsrc_start = pci_resource_start (dev, 0);
-		hcd->rsrc_len = pci_resource_len (dev, 0);
-		if (!request_mem_region (hcd->rsrc_start, hcd->rsrc_len,
+	if (driver->flags & HCD_MEMORY) {
+		/* EHCI, OHCI */
+		hcd->rsrc_start = pci_resource_start(dev, 0);
+		hcd->rsrc_len = pci_resource_len(dev, 0);
+		if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
 				driver->description)) {
-			dev_dbg (&dev->dev, "controller already in use\n");
+			dev_dbg(&dev->dev, "controller already in use\n");
 			retval = -EBUSY;
 			goto err2;
 		}
-		hcd->regs = ioremap_nocache (hcd->rsrc_start, hcd->rsrc_len);
+		hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
 		if (hcd->regs == NULL) {
-			dev_dbg (&dev->dev, "error mapping memory\n");
+			dev_dbg(&dev->dev, "error mapping memory\n");
 			retval = -EFAULT;
 			goto err3;
 		}
 
-	} else { 				// UHCI
+	} else {
+		/* UHCI */
 		int	region;
 
 		for (region = 0; region < PCI_ROM_RESOURCE; region++) {
-			if (!(pci_resource_flags (dev, region) &
+			if (!(pci_resource_flags(dev, region) &
 					IORESOURCE_IO))
 				continue;
 
-			hcd->rsrc_start = pci_resource_start (dev, region);
-			hcd->rsrc_len = pci_resource_len (dev, region);
-			if (request_region (hcd->rsrc_start, hcd->rsrc_len,
+			hcd->rsrc_start = pci_resource_start(dev, region);
+			hcd->rsrc_len = pci_resource_len(dev, region);
+			if (request_region(hcd->rsrc_start, hcd->rsrc_len,
 					driver->description))
 				break;
 		}
 		if (region == PCI_ROM_RESOURCE) {
-			dev_dbg (&dev->dev, "no i/o regions available\n");
+			dev_dbg(&dev->dev, "no i/o regions available\n");
 			retval = -EBUSY;
 			goto err1;
 		}
 	}
 
-	pci_set_master (dev);
+	pci_set_master(dev);
 
 	retval = usb_add_hcd(hcd, dev->irq, IRQF_DISABLED | IRQF_SHARED);
 	if (retval != 0)
@@ -132,19 +137,19 @@ int usb_hcd_pci_probe (struct pci_dev *dev, const struct pci_device_id *id)
 
  err4:
 	if (driver->flags & HCD_MEMORY) {
-		iounmap (hcd->regs);
+		iounmap(hcd->regs);
  err3:
-		release_mem_region (hcd->rsrc_start, hcd->rsrc_len);
+		release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	} else
-		release_region (hcd->rsrc_start, hcd->rsrc_len);
+		release_region(hcd->rsrc_start, hcd->rsrc_len);
  err2:
-	usb_put_hcd (hcd);
+	usb_put_hcd(hcd);
  err1:
-	pci_disable_device (dev);
-	dev_err (&dev->dev, "init %s fail, %d\n", pci_name(dev), retval);
+	pci_disable_device(dev);
+	dev_err(&dev->dev, "init %s fail, %d\n", pci_name(dev), retval);
 	return retval;
-} 
-EXPORT_SYMBOL (usb_hcd_pci_probe);
+}
+EXPORT_SYMBOL_GPL(usb_hcd_pci_probe);
 
 
 /* may be called without controller electrically present */
@@ -161,7 +166,7 @@ EXPORT_SYMBOL (usb_hcd_pci_probe);
  *
  * Store this function in the HCD's struct pci_driver as remove().
  */
-void usb_hcd_pci_remove (struct pci_dev *dev)
+void usb_hcd_pci_remove(struct pci_dev *dev)
 {
 	struct usb_hcd		*hcd;
 
@@ -169,17 +174,17 @@ void usb_hcd_pci_remove (struct pci_dev *dev)
 	if (!hcd)
 		return;
 
-	usb_remove_hcd (hcd);
+	usb_remove_hcd(hcd);
 	if (hcd->driver->flags & HCD_MEMORY) {
-		iounmap (hcd->regs);
-		release_mem_region (hcd->rsrc_start, hcd->rsrc_len);
+		iounmap(hcd->regs);
+		release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	} else {
-		release_region (hcd->rsrc_start, hcd->rsrc_len);
+		release_region(hcd->rsrc_start, hcd->rsrc_len);
 	}
-	usb_put_hcd (hcd);
+	usb_put_hcd(hcd);
 	pci_disable_device(dev);
 }
-EXPORT_SYMBOL (usb_hcd_pci_remove);
+EXPORT_SYMBOL_GPL(usb_hcd_pci_remove);
 
 
 #ifdef	CONFIG_PM
@@ -191,7 +196,7 @@ EXPORT_SYMBOL (usb_hcd_pci_remove);
  *
  * Store this function in the HCD's struct pci_driver as suspend().
  */
-int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message)
+int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t message)
 {
 	struct usb_hcd		*hcd;
 	int			retval = 0;
@@ -246,12 +251,18 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message)
 
 		/* no DMA or IRQs except when HC is active */
 		if (dev->current_state == PCI_D0) {
-			pci_save_state (dev);
-			pci_disable_device (dev);
+			pci_save_state(dev);
+			pci_disable_device(dev);
+		}
+
+		if (message.event == PM_EVENT_FREEZE ||
+				message.event == PM_EVENT_PRETHAW) {
+			dev_dbg(hcd->self.controller, "--> no state change\n");
+			goto done;
 		}
 
 		if (!has_pci_pm) {
-			dev_dbg (hcd->self.controller, "--> PCI D0/legacy\n");
+			dev_dbg(hcd->self.controller, "--> PCI D0/legacy\n");
 			goto done;
 		}
 
@@ -260,30 +271,30 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message)
 		 * PCI_D3 (but not PCI_D1 or PCI_D2) is allowed to reset
 		 * some device state (e.g. as part of clock reinit).
 		 */
-		retval = pci_set_power_state (dev, PCI_D3hot);
+		retval = pci_set_power_state(dev, PCI_D3hot);
 		suspend_report_result(pci_set_power_state, retval);
 		if (retval == 0) {
 			int wake = device_can_wakeup(&hcd->self.root_hub->dev);
 
 			wake = wake && device_may_wakeup(hcd->self.controller);
 
-			dev_dbg (hcd->self.controller, "--> PCI D3%s\n",
+			dev_dbg(hcd->self.controller, "--> PCI D3%s\n",
 					wake ? "/wakeup" : "");
 
 			/* Ignore these return values.  We rely on pci code to
 			 * reject requests the hardware can't implement, rather
 			 * than coding the same thing.
 			 */
-			(void) pci_enable_wake (dev, PCI_D3hot, wake);
-			(void) pci_enable_wake (dev, PCI_D3cold, wake);
+			(void) pci_enable_wake(dev, PCI_D3hot, wake);
+			(void) pci_enable_wake(dev, PCI_D3cold, wake);
 		} else {
-			dev_dbg (&dev->dev, "PCI D3 suspend fail, %d\n",
+			dev_dbg(&dev->dev, "PCI D3 suspend fail, %d\n",
 					retval);
-			(void) usb_hcd_pci_resume (dev);
+			(void) usb_hcd_pci_resume(dev);
 		}
 
 	} else if (hcd->state != HC_STATE_HALT) {
-		dev_dbg (hcd->self.controller, "hcd state %d; not suspended\n",
+		dev_dbg(hcd->self.controller, "hcd state %d; not suspended\n",
 			hcd->state);
 		WARN_ON(1);
 		retval = -EINVAL;
@@ -298,7 +309,7 @@ done:
 		if (machine_is(powermac)) {
 			struct device_node	*of_node;
 
-			of_node = pci_device_to_OF_node (dev);
+			of_node = pci_device_to_OF_node(dev);
 			if (of_node)
 				pmac_call_feature(PMAC_FTR_USB_ENABLE,
 							of_node, 0, 0);
@@ -308,7 +319,7 @@ done:
 
 	return retval;
 }
-EXPORT_SYMBOL (usb_hcd_pci_suspend);
+EXPORT_SYMBOL_GPL(usb_hcd_pci_suspend);
 
 /**
  * usb_hcd_pci_resume - power management resume of a PCI-based HCD
@@ -316,14 +327,14 @@ EXPORT_SYMBOL (usb_hcd_pci_suspend);
  *
  * Store this function in the HCD's struct pci_driver as resume().
  */
-int usb_hcd_pci_resume (struct pci_dev *dev)
+int usb_hcd_pci_resume(struct pci_dev *dev)
 {
 	struct usb_hcd		*hcd;
 	int			retval;
 
 	hcd = pci_get_drvdata(dev);
 	if (hcd->state != HC_STATE_SUSPENDED) {
-		dev_dbg (hcd->self.controller, 
+		dev_dbg(hcd->self.controller,
 				"can't resume, not suspended!\n");
 		return 0;
 	}
@@ -333,9 +344,9 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
 	if (machine_is(powermac)) {
 		struct device_node *of_node;
 
-		of_node = pci_device_to_OF_node (dev);
+		of_node = pci_device_to_OF_node(dev);
 		if (of_node)
-			pmac_call_feature (PMAC_FTR_USB_ENABLE,
+			pmac_call_feature(PMAC_FTR_USB_ENABLE,
 						of_node, 0, 1);
 	}
 #endif
@@ -374,8 +385,8 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
 		}
 #endif
 		/* yes, ignore these results too... */
-		(void) pci_enable_wake (dev, dev->current_state, 0);
-		(void) pci_enable_wake (dev, PCI_D3cold, 0);
+		(void) pci_enable_wake(dev, dev->current_state, 0);
+		(void) pci_enable_wake(dev, PCI_D3cold, 0);
 	} else {
 		/* Same basic cases: clean (powered/not), dirty */
 		dev_dbg(hcd->self.controller, "PCI legacy resume\n");
@@ -386,14 +397,14 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
 	 * but that won't re-enable bus mastering.  Yet pci_disable_device()
 	 * explicitly disables bus mastering...
 	 */
-	retval = pci_enable_device (dev);
+	retval = pci_enable_device(dev);
 	if (retval < 0) {
-		dev_err (hcd->self.controller,
+		dev_err(hcd->self.controller,
 			"can't re-enable after resume, %d!\n", retval);
 		return retval;
 	}
-	pci_set_master (dev);
-	pci_restore_state (dev);
+	pci_set_master(dev);
+	pci_restore_state(dev);
 
 	dev->dev.power.power_state = PMSG_ON;
 
@@ -402,15 +413,15 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
 	if (hcd->driver->resume) {
 		retval = hcd->driver->resume(hcd);
 		if (retval) {
-			dev_err (hcd->self.controller,
+			dev_err(hcd->self.controller,
 				"PCI post-resume error %d!\n", retval);
-			usb_hc_died (hcd);
+			usb_hc_died(hcd);
 		}
 	}
 
 	return retval;
 }
-EXPORT_SYMBOL (usb_hcd_pci_resume);
+EXPORT_SYMBOL_GPL(usb_hcd_pci_resume);
 
 #endif	/* CONFIG_PM */
 
@@ -418,7 +429,7 @@ EXPORT_SYMBOL (usb_hcd_pci_resume);
  * usb_hcd_pci_shutdown - shutdown host controller
  * @dev: USB Host Controller being shutdown
  */
-void usb_hcd_pci_shutdown (struct pci_dev *dev)
+void usb_hcd_pci_shutdown(struct pci_dev *dev)
 {
 	struct usb_hcd		*hcd;
 
@@ -429,5 +440,5 @@ void usb_hcd_pci_shutdown (struct pci_dev *dev)
 	if (hcd->driver->shutdown)
 		hcd->driver->shutdown(hcd);
 }
-EXPORT_SYMBOL (usb_hcd_pci_shutdown);
+EXPORT_SYMBOL_GPL(usb_hcd_pci_shutdown);
 

drivers/usb/core/hcd.c

@@ -35,6 +35,7 @@
 #include <linux/mutex.h>
 #include <asm/irq.h>
 #include <asm/byteorder.h>
+#include <asm/unaligned.h>
 #include <linux/platform_device.h>
 #include <linux/workqueue.h>
 
@@ -131,8 +132,8 @@ static const u8 usb2_rh_dev_descriptor [18] = {
 	0x01,       /*  __u8  bDeviceProtocol; [ usb 2.0 single TT ]*/
 	0x40,       /*  __u8  bMaxPacketSize0; 64 Bytes */
 
-	0x00, 0x00, /*  __le16 idVendor; */
- 	0x00, 0x00, /*  __le16 idProduct; */
+	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation */
+	0x02, 0x00, /*  __le16 idProduct; device 0x0002 */
 	KERNEL_VER, KERNEL_REL, /*  __le16 bcdDevice */
 
 	0x03,       /*  __u8  iManufacturer; */
@@ -154,8 +155,8 @@ static const u8 usb11_rh_dev_descriptor [18] = {
 	0x00,       /*  __u8  bDeviceProtocol; [ low/full speeds only ] */
 	0x40,       /*  __u8  bMaxPacketSize0; 64 Bytes */
 
-	0x00, 0x00, /*  __le16 idVendor; */
- 	0x00, 0x00, /*  __le16 idProduct; */
+	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation */
+	0x01, 0x00, /*  __le16 idProduct; device 0x0001 */
 	KERNEL_VER, KERNEL_REL, /*  __le16 bcdDevice */
 
 	0x03,       /*  __u8  iManufacturer; */
@@ -807,13 +808,13 @@ static int usb_register_bus(struct usb_bus *bus)
 	}
 	set_bit (busnum, busmap.busmap);
 	bus->busnum = busnum;
-	bus->class_dev = class_device_create(usb_host_class, NULL, MKDEV(0,0),
-					     bus->controller, "usb_host%d",
-					     busnum);
-	result = PTR_ERR(bus->class_dev);
-	if (IS_ERR(bus->class_dev))
+
+	bus->dev = device_create(usb_host_class, bus->controller, MKDEV(0, 0),
+				 "usb_host%d", busnum);
+	result = PTR_ERR(bus->dev);
+	if (IS_ERR(bus->dev))
 		goto error_create_class_dev;
-	class_set_devdata(bus->class_dev, bus);
+	dev_set_drvdata(bus->dev, bus);
 
 	/* Add it to the local list of buses */
 	list_add (&bus->bus_list, &usb_bus_list);
@@ -857,7 +858,7 @@ static void usb_deregister_bus (struct usb_bus *bus)
 
 	clear_bit (bus->busnum, busmap.busmap);
 
-	class_device_unregister(bus->class_dev);
+	device_unregister(bus->dev);
 }
 
 /**
@@ -970,7 +971,7 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount)
 		return -1;
 	}
 }
-EXPORT_SYMBOL (usb_calc_bus_time);
+EXPORT_SYMBOL_GPL(usb_calc_bus_time);
 
 
 /*-------------------------------------------------------------------------*/
@@ -1112,48 +1113,177 @@ void usb_hcd_unlink_urb_from_ep(struct usb_hcd *hcd, struct urb *urb)
 }
 EXPORT_SYMBOL_GPL(usb_hcd_unlink_urb_from_ep);
 
-static void map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
+/*
+ * Some usb host controllers can only perform dma using a small SRAM area.
+ * The usb core itself is however optimized for host controllers that can dma
+ * using regular system memory - like pci devices doing bus mastering.
+ *
+ * To support host controllers with limited dma capabilites we provide dma
+ * bounce buffers. This feature can be enabled using the HCD_LOCAL_MEM flag.
+ * For this to work properly the host controller code must first use the
+ * function dma_declare_coherent_memory() to point out which memory area
+ * that should be used for dma allocations.
+ *
+ * The HCD_LOCAL_MEM flag then tells the usb code to allocate all data for
+ * dma using dma_alloc_coherent() which in turn allocates from the memory
+ * area pointed out with dma_declare_coherent_memory().
+ *
+ * So, to summarize...
+ *
+ * - We need "local" memory, canonical example being
+ *   a small SRAM on a discrete controller being the
+ *   only memory that the controller can read ...
+ *   (a) "normal" kernel memory is no good, and
+ *   (b) there's not enough to share
+ *
+ * - The only *portable* hook for such stuff in the
+ *   DMA framework is dma_declare_coherent_memory()
+ *
+ * - So we use that, even though the primary requirement
+ *   is that the memory be "local" (hence addressible
+ *   by that device), not "coherent".
+ *
+ */
+
+static int hcd_alloc_coherent(struct usb_bus *bus,
+			      gfp_t mem_flags, dma_addr_t *dma_handle,
+			      void **vaddr_handle, size_t size,
+			      enum dma_data_direction dir)
+{
+	unsigned char *vaddr;
+
+	vaddr = hcd_buffer_alloc(bus, size + sizeof(vaddr),
+				 mem_flags, dma_handle);
+	if (!vaddr)
+		return -ENOMEM;
+
+	/*
+	 * Store the virtual address of the buffer at the end
+	 * of the allocated dma buffer. The size of the buffer
+	 * may be uneven so use unaligned functions instead
+	 * of just rounding up. It makes sense to optimize for
+	 * memory footprint over access speed since the amount
+	 * of memory available for dma may be limited.
+	 */
+	put_unaligned((unsigned long)*vaddr_handle,
+		      (unsigned long *)(vaddr + size));
+
+	if (dir == DMA_TO_DEVICE)
+		memcpy(vaddr, *vaddr_handle, size);
+
+	*vaddr_handle = vaddr;
+	return 0;
+}
+
+static void hcd_free_coherent(struct usb_bus *bus, dma_addr_t *dma_handle,
+			      void **vaddr_handle, size_t size,
+			      enum dma_data_direction dir)
+{
+	unsigned char *vaddr = *vaddr_handle;
+
+	vaddr = (void *)get_unaligned((unsigned long *)(vaddr + size));
+
+	if (dir == DMA_FROM_DEVICE)
+		memcpy(vaddr, *vaddr_handle, size);
+
+	hcd_buffer_free(bus, size + sizeof(vaddr), *vaddr_handle, *dma_handle);
+
+	*vaddr_handle = vaddr;
+	*dma_handle = 0;
+}
+
+static int map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
+			   gfp_t mem_flags)
 {
+	enum dma_data_direction dir;
+	int ret = 0;
+
 	/* Map the URB's buffers for DMA access.
 	 * Lower level HCD code should use *_dma exclusively,
 	 * unless it uses pio or talks to another transport.
 	 */
-	if (hcd->self.uses_dma && !is_root_hub(urb->dev)) {
-		if (usb_endpoint_xfer_control(&urb->ep->desc)
-			&& !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP))
-			urb->setup_dma = dma_map_single (
+	if (is_root_hub(urb->dev))
+		return 0;
+
+	if (usb_endpoint_xfer_control(&urb->ep->desc)
+	    && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) {
+		if (hcd->self.uses_dma)
+			urb->setup_dma = dma_map_single(
 					hcd->self.controller,
 					urb->setup_packet,
-					sizeof (struct usb_ctrlrequest),
+					sizeof(struct usb_ctrlrequest),
+					DMA_TO_DEVICE);
+		else if (hcd->driver->flags & HCD_LOCAL_MEM)
+			ret = hcd_alloc_coherent(
+					urb->dev->bus, mem_flags,
+					&urb->setup_dma,
+					(void **)&urb->setup_packet,
+					sizeof(struct usb_ctrlrequest),
 					DMA_TO_DEVICE);
-		if (urb->transfer_buffer_length != 0
-			&& !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP))
+	}
+
+	dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+	if (ret == 0 && urb->transfer_buffer_length != 0
+	    && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) {
+		if (hcd->self.uses_dma)
 			urb->transfer_dma = dma_map_single (
 					hcd->self.controller,
 					urb->transfer_buffer,
 					urb->transfer_buffer_length,
-					usb_urb_dir_in(urb)
-					    ? DMA_FROM_DEVICE
-					    : DMA_TO_DEVICE);
+					dir);
+		else if (hcd->driver->flags & HCD_LOCAL_MEM) {
+			ret = hcd_alloc_coherent(
+					urb->dev->bus, mem_flags,
+					&urb->transfer_dma,
+					&urb->transfer_buffer,
+					urb->transfer_buffer_length,
+					dir);
+
+			if (ret && usb_endpoint_xfer_control(&urb->ep->desc)
+			    && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP))
+				hcd_free_coherent(urb->dev->bus,
+					&urb->setup_dma,
+					(void **)&urb->setup_packet,
+					sizeof(struct usb_ctrlrequest),
+					DMA_TO_DEVICE);
+		}
 	}
+	return ret;
 }
 
 static void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
 {
-	if (hcd->self.uses_dma && !is_root_hub(urb->dev)) {
-		if (usb_endpoint_xfer_control(&urb->ep->desc)
-			&& !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP))
+	enum dma_data_direction dir;
+
+	if (is_root_hub(urb->dev))
+		return;
+
+	if (usb_endpoint_xfer_control(&urb->ep->desc)
+	    && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) {
+		if (hcd->self.uses_dma)
 			dma_unmap_single(hcd->self.controller, urb->setup_dma,
 					sizeof(struct usb_ctrlrequest),
 					DMA_TO_DEVICE);
-		if (urb->transfer_buffer_length != 0
-			&& !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP))
+		else if (hcd->driver->flags & HCD_LOCAL_MEM)
+			hcd_free_coherent(urb->dev->bus, &urb->setup_dma,
+					(void **)&urb->setup_packet,
+					sizeof(struct usb_ctrlrequest),
+					DMA_TO_DEVICE);
+	}
+
+	dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+	if (urb->transfer_buffer_length != 0
+	    && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) {
+		if (hcd->self.uses_dma)
 			dma_unmap_single(hcd->self.controller,
 					urb->transfer_dma,
 					urb->transfer_buffer_length,
-					usb_urb_dir_in(urb)
-					    ? DMA_FROM_DEVICE
-					    : DMA_TO_DEVICE);
+					dir);
+		else if (hcd->driver->flags & HCD_LOCAL_MEM)
+			hcd_free_coherent(urb->dev->bus, &urb->transfer_dma,
+					&urb->transfer_buffer,
+					urb->transfer_buffer_length,
+					dir);
 	}
 }
 
@@ -1185,7 +1315,12 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 	 * URBs must be submitted in process context with interrupts
 	 * enabled.
 	 */
-	map_urb_for_dma(hcd, urb);
+	status = map_urb_for_dma(hcd, urb, mem_flags);
+	if (unlikely(status)) {
+		usbmon_urb_submit_error(&hcd->self, urb, status);
+		goto error;
+	}
+
 	if (is_root_hub(urb->dev))
 		status = rh_urb_enqueue(hcd, urb);
 	else
@@ -1194,6 +1329,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 	if (unlikely(status)) {
 		usbmon_urb_submit_error(&hcd->self, urb, status);
 		unmap_urb_for_dma(hcd, urb);
+ error:
 		urb->hcpriv = NULL;
 		INIT_LIST_HEAD(&urb->urb_list);
 		atomic_dec(&urb->use_count);
@@ -1291,7 +1427,7 @@ void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status)
 		wake_up (&usb_kill_urb_queue);
 	usb_put_urb (urb);
 }
-EXPORT_SYMBOL (usb_hcd_giveback_urb);
+EXPORT_SYMBOL_GPL(usb_hcd_giveback_urb);
 
 /*-------------------------------------------------------------------------*/
 
@@ -1531,7 +1667,7 @@ int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num)
 		mod_timer(&hcd->rh_timer, jiffies + msecs_to_jiffies(10));
 	return status;
 }
-EXPORT_SYMBOL (usb_bus_start_enum);
+EXPORT_SYMBOL_GPL(usb_bus_start_enum);
 
 #endif
 
@@ -1638,7 +1774,7 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver,
 			"USB Host Controller";
 	return hcd;
 }
-EXPORT_SYMBOL (usb_create_hcd);
+EXPORT_SYMBOL_GPL(usb_create_hcd);
 
 static void hcd_release (struct kref *kref)
 {
@@ -1653,14 +1789,14 @@ struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd)
 		kref_get (&hcd->kref);
 	return hcd;
 }
-EXPORT_SYMBOL (usb_get_hcd);
+EXPORT_SYMBOL_GPL(usb_get_hcd);
 
 void usb_put_hcd (struct usb_hcd *hcd)
 {
 	if (hcd)
 		kref_put (&hcd->kref, hcd_release);
 }
-EXPORT_SYMBOL (usb_put_hcd);
+EXPORT_SYMBOL_GPL(usb_put_hcd);
 
 /**
  * usb_add_hcd - finish generic HCD structure initialization and register
@@ -1786,7 +1922,7 @@ err_register_bus:
 	hcd_buffer_destroy(hcd);
 	return retval;
 } 
-EXPORT_SYMBOL (usb_add_hcd);
+EXPORT_SYMBOL_GPL(usb_add_hcd);
 
 /**
  * usb_remove_hcd - shutdown processing for generic HCDs
@@ -1828,7 +1964,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
 	usb_deregister_bus(&hcd->self);
 	hcd_buffer_destroy(hcd);
 }
-EXPORT_SYMBOL (usb_remove_hcd);
+EXPORT_SYMBOL_GPL(usb_remove_hcd);
 
 void
 usb_hcd_platform_shutdown(struct platform_device* dev)
@@ -1838,7 +1974,7 @@ usb_hcd_platform_shutdown(struct platform_device* dev)
 	if (hcd->driver->shutdown)
 		hcd->driver->shutdown(hcd);
 }
-EXPORT_SYMBOL (usb_hcd_platform_shutdown);
+EXPORT_SYMBOL_GPL(usb_hcd_platform_shutdown);
 
 /*-------------------------------------------------------------------------*/
 

drivers/usb/core/hcd.h

@@ -125,7 +125,7 @@ struct usb_hcd {
 
 	/* more shared queuing code would be good; it should support
 	 * smarter scheduling, handle transaction translators, etc;
-	 * input size of periodic table to an interrupt scheduler. 
+	 * input size of periodic table to an interrupt scheduler.
 	 * (ohci 32, uhci 1024, ehci 256/512/1024).
 	 */
 
@@ -133,16 +133,16 @@ struct usb_hcd {
 	 * this structure.
 	 */
 	unsigned long hcd_priv[0]
-			__attribute__ ((aligned (sizeof(unsigned long))));
+			__attribute__ ((aligned(sizeof(unsigned long))));
 };
 
 /* 2.4 does this a bit differently ... */
-static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd)
+static inline struct usb_bus *hcd_to_bus(struct usb_hcd *hcd)
 {
 	return &hcd->self;
 }
 
-static inline struct usb_hcd *bus_to_hcd (struct usb_bus *bus)
+static inline struct usb_hcd *bus_to_hcd(struct usb_bus *bus)
 {
 	return container_of(bus, struct usb_hcd, self);
 }
@@ -165,6 +165,7 @@ struct hc_driver {
 
 	int	flags;
 #define	HCD_MEMORY	0x0001		/* HC regs use memory (else I/O) */
+#define	HCD_LOCAL_MEM	0x0002		/* HC needs local memory */
 #define	HCD_USB11	0x0010		/* USB 1.1 */
 #define	HCD_USB2	0x0020		/* USB 2.0 */
 
@@ -201,15 +202,18 @@ struct hc_driver {
 			struct usb_host_endpoint *ep);
 
 	/* root hub support */
-	int		(*hub_status_data) (struct usb_hcd *hcd, char *buf);
-	int		(*hub_control) (struct usb_hcd *hcd,
+	int	(*hub_status_data) (struct usb_hcd *hcd, char *buf);
+	int	(*hub_control) (struct usb_hcd *hcd,
 				u16 typeReq, u16 wValue, u16 wIndex,
 				char *buf, u16 wLength);
-	int		(*bus_suspend)(struct usb_hcd *);
-	int		(*bus_resume)(struct usb_hcd *);
-	int		(*start_port_reset)(struct usb_hcd *, unsigned port_num);
-	void		(*hub_irq_enable)(struct usb_hcd *);
+	int	(*bus_suspend)(struct usb_hcd *);
+	int	(*bus_resume)(struct usb_hcd *);
+	int	(*start_port_reset)(struct usb_hcd *, unsigned port_num);
+	void	(*hub_irq_enable)(struct usb_hcd *);
 		/* Needed only if port-change IRQs are level-triggered */
+
+		/* force handover of high-speed port to full-speed companion */
+	void	(*relinquish_port)(struct usb_hcd *, int);
 };
 
 extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
@@ -217,56 +221,56 @@ extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb,
 		int status);
 extern void usb_hcd_unlink_urb_from_ep(struct usb_hcd *hcd, struct urb *urb);
 
-extern int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags);
-extern int usb_hcd_unlink_urb (struct urb *urb, int status);
+extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags);
+extern int usb_hcd_unlink_urb(struct urb *urb, int status);
 extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb,
 		int status);
 extern void usb_hcd_flush_endpoint(struct usb_device *udev,
 		struct usb_host_endpoint *ep);
 extern void usb_hcd_disable_endpoint(struct usb_device *udev,
 		struct usb_host_endpoint *ep);
-extern int usb_hcd_get_frame_number (struct usb_device *udev);
+extern int usb_hcd_get_frame_number(struct usb_device *udev);
 
-extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver,
+extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver,
 		struct device *dev, char *bus_name);
-extern struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd);
-extern void usb_put_hcd (struct usb_hcd *hcd);
+extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd);
+extern void usb_put_hcd(struct usb_hcd *hcd);
 extern int usb_add_hcd(struct usb_hcd *hcd,
 		unsigned int irqnum, unsigned long irqflags);
 extern void usb_remove_hcd(struct usb_hcd *hcd);
 
 struct platform_device;
-extern void usb_hcd_platform_shutdown(struct platform_device* dev);
+extern void usb_hcd_platform_shutdown(struct platform_device *dev);
 
 #ifdef CONFIG_PCI
 struct pci_dev;
 struct pci_device_id;
-extern int usb_hcd_pci_probe (struct pci_dev *dev,
+extern int usb_hcd_pci_probe(struct pci_dev *dev,
 				const struct pci_device_id *id);
-extern void usb_hcd_pci_remove (struct pci_dev *dev);
+extern void usb_hcd_pci_remove(struct pci_dev *dev);
 
 #ifdef CONFIG_PM
-extern int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t state);
-extern int usb_hcd_pci_resume (struct pci_dev *dev);
+extern int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t state);
+extern int usb_hcd_pci_resume(struct pci_dev *dev);
 #endif /* CONFIG_PM */
 
-extern void usb_hcd_pci_shutdown (struct pci_dev *dev);
+extern void usb_hcd_pci_shutdown(struct pci_dev *dev);
 
 #endif /* CONFIG_PCI */
 
 /* pci-ish (pdev null is ok) buffer alloc/mapping support */
-int hcd_buffer_create (struct usb_hcd *hcd);
-void hcd_buffer_destroy (struct usb_hcd *hcd);
+int hcd_buffer_create(struct usb_hcd *hcd);
+void hcd_buffer_destroy(struct usb_hcd *hcd);
 
-void *hcd_buffer_alloc (struct usb_bus *bus, size_t size,
+void *hcd_buffer_alloc(struct usb_bus *bus, size_t size,
 	gfp_t mem_flags, dma_addr_t *dma);
-void hcd_buffer_free (struct usb_bus *bus, size_t size,
+void hcd_buffer_free(struct usb_bus *bus, size_t size,
 	void *addr, dma_addr_t dma);
 
 /* generic bus glue, needed for host controllers that don't use PCI */
-extern irqreturn_t usb_hcd_irq (int irq, void *__hcd);
+extern irqreturn_t usb_hcd_irq(int irq, void *__hcd);
 
-extern void usb_hc_died (struct usb_hcd *hcd);
+extern void usb_hc_died(struct usb_hcd *hcd);
 extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
 
 /* -------------------------------------------------------------------------- */
@@ -319,9 +323,9 @@ extern void usb_destroy_configuration(struct usb_device *dev);
  * Generic bandwidth allocation constants/support
  */
 #define FRAME_TIME_USECS	1000L
-#define BitTime(bytecount)  (7 * 8 * bytecount / 6)  /* with integer truncation */
+#define BitTime(bytecount) (7 * 8 * bytecount / 6) /* with integer truncation */
 		/* Trying not to use worst-case bit-stuffing
-                   of (7/6 * 8 * bytecount) = 9.33 * bytecount */
+		 * of (7/6 * 8 * bytecount) = 9.33 * bytecount */
 		/* bytecount = data payload byte count */
 
 #define NS_TO_US(ns)	((ns + 500L) / 1000L)
@@ -333,9 +337,9 @@ extern void usb_destroy_configuration(struct usb_device *dev);
  */
 #define BW_HOST_DELAY	1000L		/* nanoseconds */
 #define BW_HUB_LS_SETUP	333L		/* nanoseconds */
-                        /* 4 full-speed bit times (est.) */
+			/* 4 full-speed bit times (est.) */
 
-#define FRAME_TIME_BITS         12000L		/* frame = 1 millisecond */
+#define FRAME_TIME_BITS			12000L	/* frame = 1 millisecond */
 #define FRAME_TIME_MAX_BITS_ALLOC	(90L * FRAME_TIME_BITS / 100L)
 #define FRAME_TIME_MAX_USECS_ALLOC	(90L * FRAME_TIME_USECS / 100L)
 
@@ -345,16 +349,16 @@ extern void usb_destroy_configuration(struct usb_device *dev);
  * to preallocate bandwidth)
  */
 #define USB2_HOST_DELAY	5	/* nsec, guess */
-#define HS_NSECS(bytes) ( ((55 * 8 * 2083) \
+#define HS_NSECS(bytes) (((55 * 8 * 2083) \
 	+ (2083UL * (3 + BitTime(bytes))))/1000 \
 	+ USB2_HOST_DELAY)
-#define HS_NSECS_ISO(bytes) ( ((38 * 8 * 2083) \
+#define HS_NSECS_ISO(bytes) (((38 * 8 * 2083) \
 	+ (2083UL * (3 + BitTime(bytes))))/1000 \
 	+ USB2_HOST_DELAY)
 #define HS_USECS(bytes) NS_TO_US (HS_NSECS(bytes))
 #define HS_USECS_ISO(bytes) NS_TO_US (HS_NSECS_ISO(bytes))
 
-extern long usb_calc_bus_time (int speed, int is_input,
+extern long usb_calc_bus_time(int speed, int is_input,
 			int isoc, int bytecount);
 
 /*-------------------------------------------------------------------------*/
@@ -370,16 +374,16 @@ extern struct list_head usb_bus_list;
 extern struct mutex usb_bus_list_lock;
 extern wait_queue_head_t usb_kill_urb_queue;
 
-extern void usb_enable_root_hub_irq (struct usb_bus *bus);
+extern void usb_enable_root_hub_irq(struct usb_bus *bus);
 
-extern int usb_find_interface_driver (struct usb_device *dev,
+extern int usb_find_interface_driver(struct usb_device *dev,
 	struct usb_interface *interface);
 
 #define usb_endpoint_out(ep_dir)	(!((ep_dir) & USB_DIR_IN))
 
 #ifdef CONFIG_PM
-extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd);
-extern void usb_root_hub_lost_power (struct usb_device *rhdev);
+extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd);
+extern void usb_root_hub_lost_power(struct usb_device *rhdev);
 extern int hcd_bus_suspend(struct usb_device *rhdev);
 extern int hcd_bus_resume(struct usb_device *rhdev);
 #else
@@ -399,13 +403,13 @@ static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd)
  * these are expected to be called from the USB core/hub thread
  * with the kernel lock held
  */
-extern void usbfs_update_special (void);
+extern void usbfs_update_special(void);
 extern int usbfs_init(void);
 extern void usbfs_cleanup(void);
 
 #else /* CONFIG_USB_DEVICEFS */
 
-static inline void usbfs_update_special (void) {}
+static inline void usbfs_update_special(void) {}
 static inline int usbfs_init(void) { return 0; }
 static inline void usbfs_cleanup(void) { }
 
@@ -460,7 +464,7 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
 /*-------------------------------------------------------------------------*/
 
 /* hub.h ... DeviceRemovable in 2.4.2-ac11, gone in 2.4.10 */
-// bleech -- resurfaced in 2.4.11 or 2.4.12
+/* bleech -- resurfaced in 2.4.11 or 2.4.12 */
 #define bitmap 	DeviceRemovable
 
 
@@ -468,8 +472,8 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
 
 /* random stuff */
 
-#define	RUN_CONTEXT (in_irq () ? "in_irq" \
-		: (in_interrupt () ? "in_interrupt" : "can sleep"))
+#define	RUN_CONTEXT (in_irq() ? "in_irq" \
+		: (in_interrupt() ? "in_interrupt" : "can sleep"))
 
 
 /* This rwsem is for use only by the hub driver and ehci-hcd.

drivers/usb/core/hub.c

@@ -37,6 +37,13 @@
 #define	USB_PERSIST	0
 #endif
 
+/* if we are in debug mode, always announce new devices */
+#ifdef DEBUG
+#ifndef CONFIG_USB_ANNOUNCE_NEW_DEVICES
+#define CONFIG_USB_ANNOUNCE_NEW_DEVICES
+#endif
+#endif
+
 struct usb_hub {
 	struct device		*intfdev;	/* the "interface" device */
 	struct usb_device	*hdev;
@@ -487,6 +494,7 @@ void usb_hub_tt_clear_buffer (struct usb_device *udev, int pipe)
 	schedule_work (&tt->kevent);
 	spin_unlock_irqrestore (&tt->lock, flags);
 }
+EXPORT_SYMBOL_GPL(usb_hub_tt_clear_buffer);
 
 static void hub_power_on(struct usb_hub *hub)
 {
@@ -1027,8 +1035,10 @@ static void recursively_mark_NOTATTACHED(struct usb_device *udev)
 		if (udev->children[i])
 			recursively_mark_NOTATTACHED(udev->children[i]);
 	}
-	if (udev->state == USB_STATE_SUSPENDED)
+	if (udev->state == USB_STATE_SUSPENDED) {
 		udev->discon_suspended = 1;
+		udev->active_duration -= jiffies;
+	}
 	udev->state = USB_STATE_NOTATTACHED;
 }
 
@@ -1077,6 +1087,12 @@ void usb_set_device_state(struct usb_device *udev,
 			else
 				device_init_wakeup(&udev->dev, 0);
 		}
+		if (udev->state == USB_STATE_SUSPENDED &&
+			new_state != USB_STATE_SUSPENDED)
+			udev->active_duration -= jiffies;
+		else if (new_state == USB_STATE_SUSPENDED &&
+				udev->state != USB_STATE_SUSPENDED)
+			udev->active_duration += jiffies;
 		udev->state = new_state;
 	} else
 		recursively_mark_NOTATTACHED(udev);
@@ -1207,7 +1223,7 @@ void usb_disconnect(struct usb_device **pdev)
 	put_device(&udev->dev);
 }
 
-#ifdef DEBUG
+#ifdef CONFIG_USB_ANNOUNCE_NEW_DEVICES
 static void show_string(struct usb_device *udev, char *id, char *string)
 {
 	if (!string)
@@ -1215,12 +1231,24 @@ static void show_string(struct usb_device *udev, char *id, char *string)
 	dev_printk(KERN_INFO, &udev->dev, "%s: %s\n", id, string);
 }
 
+static void announce_device(struct usb_device *udev)
+{
+	dev_info(&udev->dev, "New USB device found, idVendor=%04x, idProduct=%04x\n",
+		le16_to_cpu(udev->descriptor.idVendor),
+		le16_to_cpu(udev->descriptor.idProduct));
+	dev_info(&udev->dev, "New USB device strings: Mfr=%d, Product=%d, "
+		"SerialNumber=%d\n",
+		udev->descriptor.iManufacturer,
+		udev->descriptor.iProduct,
+		udev->descriptor.iSerialNumber);
+	show_string(udev, "Product", udev->product);
+	show_string(udev, "Manufacturer", udev->manufacturer);
+	show_string(udev, "SerialNumber", udev->serial);
+}
 #else
-static inline void show_string(struct usb_device *udev, char *id, char *string)
-{}
+static inline void announce_device(struct usb_device *udev) { }
 #endif
 
-
 #ifdef	CONFIG_USB_OTG
 #include "otg_whitelist.h"
 #endif
@@ -1390,14 +1418,7 @@ int usb_new_device(struct usb_device *udev)
 	}
 
 	/* Tell the world! */
-	dev_dbg(&udev->dev, "new device strings: Mfr=%d, Product=%d, "
-		"SerialNumber=%d\n",
-		udev->descriptor.iManufacturer,
-		udev->descriptor.iProduct,
-		udev->descriptor.iSerialNumber);
-	show_string(udev, "Product", udev->product);
-	show_string(udev, "Manufacturer", udev->manufacturer);
-	show_string(udev, "SerialNumber", udev->serial);
+	announce_device(udev);
 	return err;
 
 fail:
@@ -2482,6 +2503,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 {
 	struct usb_device *hdev = hub->hdev;
 	struct device *hub_dev = hub->intfdev;
+	struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
 	u16 wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics);
 	int status, i;
  
@@ -2645,6 +2667,8 @@ loop:
  
 done:
 	hub_port_disable(hub, port1, 1);
+	if (hcd->driver->relinquish_port && !hub->hdev->parent)
+		hcd->driver->relinquish_port(hcd, port1);
 }
 
 static void hub_events(void)
@@ -2946,7 +2970,7 @@ static int config_descriptors_changed(struct usb_device *udev)
 		if (len < le16_to_cpu(udev->config[index].desc.wTotalLength))
 			len = le16_to_cpu(udev->config[index].desc.wTotalLength);
 	}
-	buf = kmalloc (len, GFP_KERNEL);
+	buf = kmalloc(len, GFP_NOIO);
 	if (buf == NULL) {
 		dev_err(&udev->dev, "no mem to re-read configs after reset\n");
 		/* assume the worst */
@@ -3093,7 +3117,7 @@ re_enumerate:
 	hub_port_logical_disconnect(parent_hub, port1);
 	return -ENODEV;
 }
-EXPORT_SYMBOL(usb_reset_device);
+EXPORT_SYMBOL_GPL(usb_reset_device);
 
 /**
  * usb_reset_composite_device - warn interface drivers and perform a USB port reset
@@ -3110,16 +3134,12 @@ EXPORT_SYMBOL(usb_reset_device);
  * this from a driver probe() routine after downloading new firmware.
  * For calls that might not occur during probe(), drivers should lock
  * the device using usb_lock_device_for_reset().
- *
- * The interface locks are acquired during the pre_reset stage and released
- * during the post_reset stage.  However if iface is not NULL and is
- * currently being probed, we assume that the caller already owns its
- * lock.
  */
 int usb_reset_composite_device(struct usb_device *udev,
 		struct usb_interface *iface)
 {
 	int ret;
+	int i;
 	struct usb_host_config *config = udev->actconfig;
 
 	if (udev->state == USB_STATE_NOTATTACHED ||
@@ -3136,16 +3156,11 @@ int usb_reset_composite_device(struct usb_device *udev,
 		iface = NULL;
 
 	if (config) {
-		int i;
-		struct usb_interface *cintf;
-		struct usb_driver *drv;
-
 		for (i = 0; i < config->desc.bNumInterfaces; ++i) {
-			cintf = config->interface[i];
-			if (cintf != iface)
-				down(&cintf->dev.sem);
-			if (device_is_registered(&cintf->dev) &&
-					cintf->dev.driver) {
+			struct usb_interface *cintf = config->interface[i];
+			struct usb_driver *drv;
+
+			if (cintf->dev.driver) {
 				drv = to_usb_driver(cintf->dev.driver);
 				if (drv->pre_reset)
 					(drv->pre_reset)(cintf);
@@ -3157,25 +3172,20 @@ int usb_reset_composite_device(struct usb_device *udev,
 	ret = usb_reset_device(udev);
 
 	if (config) {
-		int i;
-		struct usb_interface *cintf;
-		struct usb_driver *drv;
-
 		for (i = config->desc.bNumInterfaces - 1; i >= 0; --i) {
-			cintf = config->interface[i];
-			if (device_is_registered(&cintf->dev) &&
-					cintf->dev.driver) {
+			struct usb_interface *cintf = config->interface[i];
+			struct usb_driver *drv;
+
+			if (cintf->dev.driver) {
 				drv = to_usb_driver(cintf->dev.driver);
 				if (drv->post_reset)
 					(drv->post_reset)(cintf);
 	/* FIXME: Unbind if post_reset returns an error or isn't defined */
 			}
-			if (cintf != iface)
-				up(&cintf->dev.sem);
 		}
 	}
 
 	usb_autosuspend_device(udev);
 	return ret;
 }
-EXPORT_SYMBOL(usb_reset_composite_device);
+EXPORT_SYMBOL_GPL(usb_reset_composite_device);

drivers/usb/core/hub.h

@@ -55,16 +55,16 @@
 #define USB_PORT_FEAT_TEST              21
 #define USB_PORT_FEAT_INDICATOR         22
 
-/* 
+/*
  * Hub Status and Hub Change results
  * See USB 2.0 spec Table 11-19 and Table 11-20
  */
 struct usb_port_status {
 	__le16 wPortStatus;
-	__le16 wPortChange;	
+	__le16 wPortChange;
 } __attribute__ ((packed));
 
-/* 
+/*
  * wPortStatus bit field
  * See USB 2.0 spec Table 11-21
  */
@@ -81,7 +81,7 @@ struct usb_port_status {
 #define USB_PORT_STAT_INDICATOR         0x1000
 /* bits 13 to 15 are reserved */
 
-/* 
+/*
  * wPortChange bit field
  * See USB 2.0 spec Table 11-22
  * Bits 0 to 4 shown, bits 5 to 15 are reserved
@@ -93,7 +93,7 @@ struct usb_port_status {
 #define USB_PORT_STAT_C_RESET		0x0010
 
 /*
- * wHubCharacteristics (masks) 
+ * wHubCharacteristics (masks)
  * See USB 2.0 spec Table 11-13, offset 3
  */
 #define HUB_CHAR_LPSM		0x0003 /* D1 .. D0 */
@@ -119,8 +119,8 @@ struct usb_hub_status {
 #define HUB_CHANGE_OVERCURRENT	0x0002
 
 
-/* 
- * Hub descriptor 
+/*
+ * Hub descriptor
  * See USB 2.0 spec Table 11-13
  */
 
@@ -134,7 +134,7 @@ struct usb_hub_descriptor {
 	__le16 wHubCharacteristics;
 	__u8  bPwrOn2PwrGood;
 	__u8  bHubContrCurrent;
-	    	/* add 1 bit for hub status change; round to bytes */
+		/* add 1 bit for hub status change; round to bytes */
 	__u8  DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
 	__u8  PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
 } __attribute__ ((packed));
@@ -190,6 +190,6 @@ struct usb_tt_clear {
 	u16			devinfo;
 };
 
-extern void usb_hub_tt_clear_buffer (struct usb_device *dev, int pipe);
+extern void usb_hub_tt_clear_buffer(struct usb_device *dev, int pipe);
 
 #endif /* __LINUX_HUB_H */

drivers/usb/core/inode.c

@@ -38,10 +38,15 @@
 #include <linux/usbdevice_fs.h>
 #include <linux/parser.h>
 #include <linux/notifier.h>
+#include <linux/seq_file.h>
 #include <asm/byteorder.h>
 #include "usb.h"
 #include "hcd.h"
 
+#define USBFS_DEFAULT_DEVMODE (S_IWUSR | S_IRUGO)
+#define USBFS_DEFAULT_BUSMODE (S_IXUGO | S_IRUGO)
+#define USBFS_DEFAULT_LISTMODE S_IRUGO
+
 static struct super_operations usbfs_ops;
 static const struct file_operations default_file_operations;
 static struct vfsmount *usbfs_mount;
@@ -57,9 +62,33 @@ static uid_t listuid;	/* = 0 */
 static gid_t devgid;	/* = 0 */
 static gid_t busgid;	/* = 0 */
 static gid_t listgid;	/* = 0 */
-static umode_t devmode = S_IWUSR | S_IRUGO;
-static umode_t busmode = S_IXUGO | S_IRUGO;
-static umode_t listmode = S_IRUGO;
+static umode_t devmode = USBFS_DEFAULT_DEVMODE;
+static umode_t busmode = USBFS_DEFAULT_BUSMODE;
+static umode_t listmode = USBFS_DEFAULT_LISTMODE;
+
+static int usbfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
+{
+	if (devuid != 0)
+		seq_printf(seq, ",devuid=%u", devuid);
+	if (devgid != 0)
+		seq_printf(seq, ",devgid=%u", devgid);
+	if (devmode != USBFS_DEFAULT_DEVMODE)
+		seq_printf(seq, ",devmode=%o", devmode);
+	if (busuid != 0)
+		seq_printf(seq, ",busuid=%u", busuid);
+	if (busgid != 0)
+		seq_printf(seq, ",busgid=%u", busgid);
+	if (busmode != USBFS_DEFAULT_BUSMODE)
+		seq_printf(seq, ",busmode=%o", busmode);
+	if (listuid != 0)
+		seq_printf(seq, ",listuid=%u", listuid);
+	if (listgid != 0)
+		seq_printf(seq, ",listgid=%u", listgid);
+	if (listmode != USBFS_DEFAULT_LISTMODE)
+		seq_printf(seq, ",listmode=%o", listmode);
+
+	return 0;
+}
 
 enum {
 	Opt_devuid, Opt_devgid, Opt_devmode,
@@ -93,9 +122,9 @@ static int parse_options(struct super_block *s, char *data)
 	devgid = 0;
 	busgid = 0;
 	listgid = 0;
-	devmode = S_IWUSR | S_IRUGO;
-	busmode = S_IXUGO | S_IRUGO;
-	listmode = S_IRUGO;
+	devmode = USBFS_DEFAULT_DEVMODE;
+	busmode = USBFS_DEFAULT_BUSMODE;
+	listmode = USBFS_DEFAULT_LISTMODE;
 
 	while ((p = strsep(&data, ",")) != NULL) {
 		substring_t args[MAX_OPT_ARGS];
@@ -418,6 +447,7 @@ static struct super_operations usbfs_ops = {
 	.statfs =	simple_statfs,
 	.drop_inode =	generic_delete_inode,
 	.remount_fs =	remount,
+	.show_options = usbfs_show_options,
 };
 
 static int usbfs_fill_super(struct super_block *sb, void *data, int silent)

drivers/usb/core/message.c

@@ -39,7 +39,7 @@ static void usb_api_blocking_completion(struct urb *urb)
  * own interruptible routines.
  */
 static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length)
-{ 
+{
 	struct api_context ctx;
 	unsigned long expire;
 	int retval;
@@ -74,9 +74,9 @@ out:
 }
 
 /*-------------------------------------------------------------------*/
-// returns status (negative) or length (positive)
+/* returns status (negative) or length (positive) */
 static int usb_internal_control_msg(struct usb_device *usb_dev,
-				    unsigned int pipe, 
+				    unsigned int pipe,
 				    struct usb_ctrlrequest *cmd,
 				    void *data, int len, int timeout)
 {
@@ -87,7 +87,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
 	urb = usb_alloc_urb(0, GFP_NOIO);
 	if (!urb)
 		return -ENOMEM;
-  
+
 	usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char *)cmd, data,
 			     len, usb_api_blocking_completion, NULL);
 
@@ -99,47 +99,51 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
 }
 
 /**
- *	usb_control_msg - Builds a control urb, sends it off and waits for completion
- *	@dev: pointer to the usb device to send the message to
- *	@pipe: endpoint "pipe" to send the message to
- *	@request: USB message request value
- *	@requesttype: USB message request type value
- *	@value: USB message value
- *	@index: USB message index value
- *	@data: pointer to the data to send
- *	@size: length in bytes of the data to send
- *	@timeout: time in msecs to wait for the message to complete before
- *		timing out (if 0 the wait is forever)
- *	Context: !in_interrupt ()
- *
- *	This function sends a simple control message to a specified endpoint
- *	and waits for the message to complete, or timeout.
- *	
- *	If successful, it returns the number of bytes transferred, otherwise a negative error number.
- *
- *	Don't use this function from within an interrupt context, like a
- *	bottom half handler.  If you need an asynchronous message, or need to send
- *	a message from within interrupt context, use usb_submit_urb()
- *      If a thread in your driver uses this call, make sure your disconnect()
- *      method can wait for it to complete.  Since you don't have a handle on
- *      the URB used, you can't cancel the request.
+ * usb_control_msg - Builds a control urb, sends it off and waits for completion
+ * @dev: pointer to the usb device to send the message to
+ * @pipe: endpoint "pipe" to send the message to
+ * @request: USB message request value
+ * @requesttype: USB message request type value
+ * @value: USB message value
+ * @index: USB message index value
+ * @data: pointer to the data to send
+ * @size: length in bytes of the data to send
+ * @timeout: time in msecs to wait for the message to complete before timing
+ *	out (if 0 the wait is forever)
+ *
+ * Context: !in_interrupt ()
+ *
+ * This function sends a simple control message to a specified endpoint and
+ * waits for the message to complete, or timeout.
+ *
+ * If successful, it returns the number of bytes transferred, otherwise a
+ * negative error number.
+ *
+ * Don't use this function from within an interrupt context, like a bottom half
+ * handler.  If you need an asynchronous message, or need to send a message
+ * from within interrupt context, use usb_submit_urb().
+ * If a thread in your driver uses this call, make sure your disconnect()
+ * method can wait for it to complete.  Since you don't have a handle on the
+ * URB used, you can't cancel the request.
  */
-int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype,
-			 __u16 value, __u16 index, void *data, __u16 size, int timeout)
+int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
+		    __u8 requesttype, __u16 value, __u16 index, void *data,
+		    __u16 size, int timeout)
 {
-	struct usb_ctrlrequest *dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO);
+	struct usb_ctrlrequest *dr;
 	int ret;
-	
+
+	dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO);
 	if (!dr)
 		return -ENOMEM;
 
-	dr->bRequestType= requesttype;
+	dr->bRequestType = requesttype;
 	dr->bRequest = request;
 	dr->wValue = cpu_to_le16p(&value);
 	dr->wIndex = cpu_to_le16p(&index);
 	dr->wLength = cpu_to_le16p(&size);
 
-	//dbg("usb_control_msg");	
+	/* dbg("usb_control_msg"); */
 
 	ret = usb_internal_control_msg(dev, pipe, dr, data, size, timeout);
 
@@ -147,7 +151,7 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u
 
 	return ret;
 }
-
+EXPORT_SYMBOL_GPL(usb_control_msg);
 
 /**
  * usb_interrupt_msg - Builds an interrupt urb, sends it off and waits for completion
@@ -155,9 +159,11 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u
  * @pipe: endpoint "pipe" to send the message to
  * @data: pointer to the data to send
  * @len: length in bytes of the data to send
- * @actual_length: pointer to a location to put the actual length transferred in bytes
+ * @actual_length: pointer to a location to put the actual length transferred
+ *	in bytes
  * @timeout: time in msecs to wait for the message to complete before
  *	timing out (if 0 the wait is forever)
+ *
  * Context: !in_interrupt ()
  *
  * This function sends a simple interrupt message to a specified endpoint and
@@ -181,38 +187,38 @@ int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
 EXPORT_SYMBOL_GPL(usb_interrupt_msg);
 
 /**
- *	usb_bulk_msg - Builds a bulk urb, sends it off and waits for completion
- *	@usb_dev: pointer to the usb device to send the message to
- *	@pipe: endpoint "pipe" to send the message to
- *	@data: pointer to the data to send
- *	@len: length in bytes of the data to send
- *	@actual_length: pointer to a location to put the actual length transferred in bytes
- *	@timeout: time in msecs to wait for the message to complete before
- *		timing out (if 0 the wait is forever)
- *	Context: !in_interrupt ()
- *
- *	This function sends a simple bulk message to a specified endpoint
- *	and waits for the message to complete, or timeout.
- *	
- *	If successful, it returns 0, otherwise a negative error number.
- *	The number of actual bytes transferred will be stored in the 
- *	actual_length paramater.
- *
- *	Don't use this function from within an interrupt context, like a
- *	bottom half handler.  If you need an asynchronous message, or need to
- *	send a message from within interrupt context, use usb_submit_urb()
- *      If a thread in your driver uses this call, make sure your disconnect()
- *      method can wait for it to complete.  Since you don't have a handle on
- *      the URB used, you can't cancel the request.
- *
- *	Because there is no usb_interrupt_msg() and no USBDEVFS_INTERRUPT
- *	ioctl, users are forced to abuse this routine by using it to submit
- *	URBs for interrupt endpoints.  We will take the liberty of creating
- *	an interrupt URB (with the default interval) if the target is an
- *	interrupt endpoint.
+ * usb_bulk_msg - Builds a bulk urb, sends it off and waits for completion
+ * @usb_dev: pointer to the usb device to send the message to
+ * @pipe: endpoint "pipe" to send the message to
+ * @data: pointer to the data to send
+ * @len: length in bytes of the data to send
+ * @actual_length: pointer to a location to put the actual length transferred
+ *	in bytes
+ * @timeout: time in msecs to wait for the message to complete before
+ *	timing out (if 0 the wait is forever)
+ *
+ * Context: !in_interrupt ()
+ *
+ * This function sends a simple bulk message to a specified endpoint
+ * and waits for the message to complete, or timeout.
+ *
+ * If successful, it returns 0, otherwise a negative error number.  The number
+ * of actual bytes transferred will be stored in the actual_length paramater.
+ *
+ * Don't use this function from within an interrupt context, like a bottom half
+ * handler.  If you need an asynchronous message, or need to send a message
+ * from within interrupt context, use usb_submit_urb() If a thread in your
+ * driver uses this call, make sure your disconnect() method can wait for it to
+ * complete.  Since you don't have a handle on the URB used, you can't cancel
+ * the request.
+ *
+ * Because there is no usb_interrupt_msg() and no USBDEVFS_INTERRUPT ioctl,
+ * users are forced to abuse this routine by using it to submit URBs for
+ * interrupt endpoints.  We will take the liberty of creating an interrupt URB
+ * (with the default interval) if the target is an interrupt endpoint.
  */
-int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe, 
-			void *data, int len, int *actual_length, int timeout)
+int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
+		 void *data, int len, int *actual_length, int timeout)
 {
 	struct urb *urb;
 	struct usb_host_endpoint *ep;
@@ -238,29 +244,30 @@ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
 
 	return usb_start_wait_urb(urb, timeout, actual_length);
 }
+EXPORT_SYMBOL_GPL(usb_bulk_msg);
 
 /*-------------------------------------------------------------------*/
 
-static void sg_clean (struct usb_sg_request *io)
+static void sg_clean(struct usb_sg_request *io)
 {
 	if (io->urbs) {
 		while (io->entries--)
-			usb_free_urb (io->urbs [io->entries]);
-		kfree (io->urbs);
+			usb_free_urb(io->urbs [io->entries]);
+		kfree(io->urbs);
 		io->urbs = NULL;
 	}
 	if (io->dev->dev.dma_mask != NULL)
-		usb_buffer_unmap_sg (io->dev, usb_pipein(io->pipe),
-				io->sg, io->nents);
+		usb_buffer_unmap_sg(io->dev, usb_pipein(io->pipe),
+				    io->sg, io->nents);
 	io->dev = NULL;
 }
 
-static void sg_complete (struct urb *urb)
+static void sg_complete(struct urb *urb)
 {
-	struct usb_sg_request	*io = urb->context;
+	struct usb_sg_request *io = urb->context;
 	int status = urb->status;
 
-	spin_lock (&io->lock);
+	spin_lock(&io->lock);
 
 	/* In 2.5 we require hcds' endpoint queues not to progress after fault
 	 * reports, until the completion callback (this!) returns.  That lets
@@ -276,13 +283,13 @@ static void sg_complete (struct urb *urb)
 			&& (io->status != -ECONNRESET
 				|| status != -ECONNRESET)
 			&& urb->actual_length) {
-		dev_err (io->dev->bus->controller,
+		dev_err(io->dev->bus->controller,
 			"dev %s ep%d%s scatterlist error %d/%d\n",
 			io->dev->devpath,
 			usb_endpoint_num(&urb->ep->desc),
 			usb_urb_dir_in(urb) ? "in" : "out",
 			status, io->status);
-		// BUG ();
+		/* BUG (); */
 	}
 
 	if (io->status == 0 && status && status != -ECONNRESET) {
@@ -294,22 +301,22 @@ static void sg_complete (struct urb *urb)
 		 * unlink pending urbs so they won't rx/tx bad data.
 		 * careful: unlink can sometimes be synchronous...
 		 */
-		spin_unlock (&io->lock);
+		spin_unlock(&io->lock);
 		for (i = 0, found = 0; i < io->entries; i++) {
 			if (!io->urbs [i] || !io->urbs [i]->dev)
 				continue;
 			if (found) {
-				retval = usb_unlink_urb (io->urbs [i]);
+				retval = usb_unlink_urb(io->urbs [i]);
 				if (retval != -EINPROGRESS &&
 				    retval != -ENODEV &&
 				    retval != -EBUSY)
-					dev_err (&io->dev->dev,
+					dev_err(&io->dev->dev,
 						"%s, unlink --> %d\n",
 						__FUNCTION__, retval);
 			} else if (urb == io->urbs [i])
 				found = 1;
 		}
-		spin_lock (&io->lock);
+		spin_lock(&io->lock);
 	}
 	urb->dev = NULL;
 
@@ -317,9 +324,9 @@ static void sg_complete (struct urb *urb)
 	io->bytes += urb->actual_length;
 	io->count--;
 	if (!io->count)
-		complete (&io->complete);
+		complete(&io->complete);
 
-	spin_unlock (&io->lock);
+	spin_unlock(&io->lock);
 }
 
 
@@ -348,28 +355,21 @@ static void sg_complete (struct urb *urb)
  * The request may be canceled with usb_sg_cancel(), either before or after
  * usb_sg_wait() is called.
  */
-int usb_sg_init (
-	struct usb_sg_request	*io,
-	struct usb_device	*dev,
-	unsigned		pipe, 
-	unsigned		period,
-	struct scatterlist	*sg,
-	int			nents,
-	size_t			length,
-	gfp_t			mem_flags
-)
+int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
+		unsigned pipe, unsigned	period, struct scatterlist *sg,
+		int nents, size_t length, gfp_t mem_flags)
 {
-	int			i;
-	int			urb_flags;
-	int			dma;
+	int i;
+	int urb_flags;
+	int dma;
 
 	if (!io || !dev || !sg
-			|| usb_pipecontrol (pipe)
-			|| usb_pipeisoc (pipe)
+			|| usb_pipecontrol(pipe)
+			|| usb_pipeisoc(pipe)
 			|| nents <= 0)
 		return -EINVAL;
 
-	spin_lock_init (&io->lock);
+	spin_lock_init(&io->lock);
 	io->dev = dev;
 	io->pipe = pipe;
 	io->sg = sg;
@@ -381,7 +381,7 @@ int usb_sg_init (
 	dma = (dev->dev.dma_mask != NULL);
 	if (dma)
 		io->entries = usb_buffer_map_sg(dev, usb_pipein(pipe),
-				sg, nents);
+						sg, nents);
 	else
 		io->entries = nents;
 
@@ -390,30 +390,30 @@ int usb_sg_init (
 		return io->entries;
 
 	io->count = io->entries;
-	io->urbs = kmalloc (io->entries * sizeof *io->urbs, mem_flags);
+	io->urbs = kmalloc(io->entries * sizeof *io->urbs, mem_flags);
 	if (!io->urbs)
 		goto nomem;
 
 	urb_flags = URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT;
-	if (usb_pipein (pipe))
+	if (usb_pipein(pipe))
 		urb_flags |= URB_SHORT_NOT_OK;
 
 	for (i = 0; i < io->entries; i++) {
-		unsigned		len;
+		unsigned len;
 
-		io->urbs [i] = usb_alloc_urb (0, mem_flags);
-		if (!io->urbs [i]) {
+		io->urbs[i] = usb_alloc_urb(0, mem_flags);
+		if (!io->urbs[i]) {
 			io->entries = i;
 			goto nomem;
 		}
 
-		io->urbs [i]->dev = NULL;
-		io->urbs [i]->pipe = pipe;
-		io->urbs [i]->interval = period;
-		io->urbs [i]->transfer_flags = urb_flags;
+		io->urbs[i]->dev = NULL;
+		io->urbs[i]->pipe = pipe;
+		io->urbs[i]->interval = period;
+		io->urbs[i]->transfer_flags = urb_flags;
 
-		io->urbs [i]->complete = sg_complete;
-		io->urbs [i]->context = io;
+		io->urbs[i]->complete = sg_complete;
+		io->urbs[i]->context = io;
 
 		/*
 		 * Some systems need to revert to PIO when DMA is temporarily
@@ -432,8 +432,8 @@ int usb_sg_init (
 		 * to prevent stale pointers and to help spot bugs.
 		 */
 		if (dma) {
-			io->urbs [i]->transfer_dma = sg_dma_address (sg + i);
-			len = sg_dma_len (sg + i);
+			io->urbs[i]->transfer_dma = sg_dma_address(sg + i);
+			len = sg_dma_len(sg + i);
 #if defined(CONFIG_HIGHMEM) || defined(CONFIG_GART_IOMMU)
 			io->urbs[i]->transfer_buffer = NULL;
 #else
@@ -441,31 +441,31 @@ int usb_sg_init (
 #endif
 		} else {
 			/* hc may use _only_ transfer_buffer */
-			io->urbs [i]->transfer_buffer = sg_virt(&sg[i]);
-			len = sg [i].length;
+			io->urbs[i]->transfer_buffer = sg_virt(&sg[i]);
+			len = sg[i].length;
 		}
 
 		if (length) {
-			len = min_t (unsigned, len, length);
+			len = min_t(unsigned, len, length);
 			length -= len;
 			if (length == 0)
 				io->entries = i + 1;
 		}
-		io->urbs [i]->transfer_buffer_length = len;
+		io->urbs[i]->transfer_buffer_length = len;
 	}
-	io->urbs [--i]->transfer_flags &= ~URB_NO_INTERRUPT;
+	io->urbs[--i]->transfer_flags &= ~URB_NO_INTERRUPT;
 
 	/* transaction state */
 	io->status = 0;
 	io->bytes = 0;
-	init_completion (&io->complete);
+	init_completion(&io->complete);
 	return 0;
 
 nomem:
-	sg_clean (io);
+	sg_clean(io);
 	return -ENOMEM;
 }
-
+EXPORT_SYMBOL_GPL(usb_sg_init);
 
 /**
  * usb_sg_wait - synchronously execute scatter/gather request
@@ -506,31 +506,32 @@ nomem:
  * speed interrupt endpoints, which allow at most one packet per millisecond,
  * of at most 8 or 64 bytes (respectively).
  */
-void usb_sg_wait (struct usb_sg_request *io)
+void usb_sg_wait(struct usb_sg_request *io)
 {
-	int		i, entries = io->entries;
+	int i;
+	int entries = io->entries;
 
 	/* queue the urbs.  */
-	spin_lock_irq (&io->lock);
+	spin_lock_irq(&io->lock);
 	i = 0;
 	while (i < entries && !io->status) {
-		int	retval;
+		int retval;
 
-		io->urbs [i]->dev = io->dev;
-		retval = usb_submit_urb (io->urbs [i], GFP_ATOMIC);
+		io->urbs[i]->dev = io->dev;
+		retval = usb_submit_urb(io->urbs [i], GFP_ATOMIC);
 
 		/* after we submit, let completions or cancelations fire;
 		 * we handshake using io->status.
 		 */
-		spin_unlock_irq (&io->lock);
+		spin_unlock_irq(&io->lock);
 		switch (retval) {
 			/* maybe we retrying will recover */
-		case -ENXIO:	// hc didn't queue this one
+		case -ENXIO:	/* hc didn't queue this one */
 		case -EAGAIN:
 		case -ENOMEM:
 			io->urbs[i]->dev = NULL;
 			retval = 0;
-			yield ();
+			yield();
 			break;
 
 			/* no error? continue immediately.
@@ -541,34 +542,35 @@ void usb_sg_wait (struct usb_sg_request *io)
 			 */
 		case 0:
 			++i;
-			cpu_relax ();
+			cpu_relax();
 			break;
 
 			/* fail any uncompleted urbs */
 		default:
-			io->urbs [i]->dev = NULL;
-			io->urbs [i]->status = retval;
-			dev_dbg (&io->dev->dev, "%s, submit --> %d\n",
+			io->urbs[i]->dev = NULL;
+			io->urbs[i]->status = retval;
+			dev_dbg(&io->dev->dev, "%s, submit --> %d\n",
 				__FUNCTION__, retval);
-			usb_sg_cancel (io);
+			usb_sg_cancel(io);
 		}
-		spin_lock_irq (&io->lock);
+		spin_lock_irq(&io->lock);
 		if (retval && (io->status == 0 || io->status == -ECONNRESET))
 			io->status = retval;
 	}
 	io->count -= entries - i;
 	if (io->count == 0)
-		complete (&io->complete);
-	spin_unlock_irq (&io->lock);
+		complete(&io->complete);
+	spin_unlock_irq(&io->lock);
 
 	/* OK, yes, this could be packaged as non-blocking.
 	 * So could the submit loop above ... but it's easier to
 	 * solve neither problem than to solve both!
 	 */
-	wait_for_completion (&io->complete);
+	wait_for_completion(&io->complete);
 
-	sg_clean (io);
+	sg_clean(io);
 }
+EXPORT_SYMBOL_GPL(usb_sg_wait);
 
 /**
  * usb_sg_cancel - stop scatter/gather i/o issued by usb_sg_wait()
@@ -578,32 +580,33 @@ void usb_sg_wait (struct usb_sg_request *io)
  * It can also prevents one initialized by usb_sg_init() from starting,
  * so that call just frees resources allocated to the request.
  */
-void usb_sg_cancel (struct usb_sg_request *io)
+void usb_sg_cancel(struct usb_sg_request *io)
 {
-	unsigned long	flags;
+	unsigned long flags;
 
-	spin_lock_irqsave (&io->lock, flags);
+	spin_lock_irqsave(&io->lock, flags);
 
 	/* shut everything down, if it didn't already */
 	if (!io->status) {
-		int	i;
+		int i;
 
 		io->status = -ECONNRESET;
-		spin_unlock (&io->lock);
+		spin_unlock(&io->lock);
 		for (i = 0; i < io->entries; i++) {
-			int	retval;
+			int retval;
 
 			if (!io->urbs [i]->dev)
 				continue;
-			retval = usb_unlink_urb (io->urbs [i]);
+			retval = usb_unlink_urb(io->urbs [i]);
 			if (retval != -EINPROGRESS && retval != -EBUSY)
-				dev_warn (&io->dev->dev, "%s, unlink --> %d\n",
+				dev_warn(&io->dev->dev, "%s, unlink --> %d\n",
 					__FUNCTION__, retval);
 		}
-		spin_lock (&io->lock);
+		spin_lock(&io->lock);
 	}
-	spin_unlock_irqrestore (&io->lock, flags);
+	spin_unlock_irqrestore(&io->lock, flags);
 }
+EXPORT_SYMBOL_GPL(usb_sg_cancel);
 
 /*-------------------------------------------------------------------*/
 
@@ -629,12 +632,13 @@ void usb_sg_cancel (struct usb_sg_request *io)
  * Returns the number of bytes received on success, or else the status code
  * returned by the underlying usb_control_msg() call.
  */
-int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char index, void *buf, int size)
+int usb_get_descriptor(struct usb_device *dev, unsigned char type,
+		       unsigned char index, void *buf, int size)
 {
 	int i;
 	int result;
-	
-	memset(buf,0,size);	// Make sure we parse really received data
+
+	memset(buf, 0, size);	/* Make sure we parse really received data */
 
 	for (i = 0; i < 3; ++i) {
 		/* retry on length 0 or error; some devices are flakey */
@@ -652,6 +656,7 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char
 	}
 	return result;
 }
+EXPORT_SYMBOL_GPL(usb_get_descriptor);
 
 /**
  * usb_get_string - gets a string descriptor
@@ -708,7 +713,7 @@ static void usb_try_string_workarounds(unsigned char *buf, int *length)
 }
 
 static int usb_string_sub(struct usb_device *dev, unsigned int langid,
-		unsigned int index, unsigned char *buf)
+			  unsigned int index, unsigned char *buf)
 {
 	int rc;
 
@@ -751,7 +756,7 @@ static int usb_string_sub(struct usb_device *dev, unsigned int langid,
  * @buf: where to put the string
  * @size: how big is "buf"?
  * Context: !in_interrupt ()
- * 
+ *
  * This converts the UTF-16LE encoded strings returned by devices, from
  * usb_get_string_descriptor(), to null-terminated ISO-8859-1 encoded ones
  * that are more usable in most kernel contexts.  Note that all characters
@@ -787,23 +792,23 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
 	if (!dev->have_langid) {
 		err = usb_string_sub(dev, 0, 0, tbuf);
 		if (err < 0) {
-			dev_err (&dev->dev,
+			dev_err(&dev->dev,
 				"string descriptor 0 read error: %d\n",
 				err);
 			goto errout;
 		} else if (err < 4) {
-			dev_err (&dev->dev, "string descriptor 0 too short\n");
+			dev_err(&dev->dev, "string descriptor 0 too short\n");
 			err = -EINVAL;
 			goto errout;
 		} else {
 			dev->have_langid = 1;
-			dev->string_langid = tbuf[2] | (tbuf[3]<< 8);
-				/* always use the first langid listed */
-			dev_dbg (&dev->dev, "default language 0x%04x\n",
+			dev->string_langid = tbuf[2] | (tbuf[3] << 8);
+			/* always use the first langid listed */
+			dev_dbg(&dev->dev, "default language 0x%04x\n",
 				dev->string_langid);
 		}
 	}
-	
+
 	err = usb_string_sub(dev, dev->string_langid, index, tbuf);
 	if (err < 0)
 		goto errout;
@@ -821,12 +826,15 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
 	err = idx;
 
 	if (tbuf[1] != USB_DT_STRING)
-		dev_dbg(&dev->dev, "wrong descriptor type %02x for string %d (\"%s\")\n", tbuf[1], index, buf);
+		dev_dbg(&dev->dev,
+			"wrong descriptor type %02x for string %d (\"%s\")\n",
+			tbuf[1], index, buf);
 
  errout:
 	kfree(tbuf);
 	return err;
 }
+EXPORT_SYMBOL_GPL(usb_string);
 
 /**
  * usb_cache_string - read a string descriptor and cache it for later use
@@ -842,9 +850,15 @@ char *usb_cache_string(struct usb_device *udev, int index)
 	char *smallbuf = NULL;
 	int len;
 
-	if (index > 0 && (buf = kmalloc(256, GFP_KERNEL)) != NULL) {
-		if ((len = usb_string(udev, index, buf, 256)) > 0) {
-			if ((smallbuf = kmalloc(++len, GFP_KERNEL)) == NULL)
+	if (index <= 0)
+		return NULL;
+
+	buf = kmalloc(256, GFP_KERNEL);
+	if (buf) {
+		len = usb_string(udev, index, buf, 256);
+		if (len > 0) {
+			smallbuf = kmalloc(++len, GFP_KERNEL);
+			if (!smallbuf)
 				return buf;
 			memcpy(smallbuf, buf, len);
 		}
@@ -883,7 +897,7 @@ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
 		return -ENOMEM;
 
 	ret = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, size);
-	if (ret >= 0) 
+	if (ret >= 0)
 		memcpy(&dev->descriptor, desc, size);
 	kfree(desc);
 	return ret;
@@ -927,6 +941,7 @@ int usb_get_status(struct usb_device *dev, int type, int target, void *data)
 	kfree(status);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(usb_get_status);
 
 /**
  * usb_clear_halt - tells device to clear endpoint halt/stall condition
@@ -955,8 +970,8 @@ int usb_clear_halt(struct usb_device *dev, int pipe)
 {
 	int result;
 	int endp = usb_pipeendpoint(pipe);
-	
-	if (usb_pipein (pipe))
+
+	if (usb_pipein(pipe))
 		endp |= USB_DIR_IN;
 
 	/* we don't care if it wasn't halted first. in fact some devices
@@ -985,6 +1000,7 @@ int usb_clear_halt(struct usb_device *dev, int pipe)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_clear_halt);
 
 /**
  * usb_disable_endpoint -- Disable an endpoint by address
@@ -1038,7 +1054,7 @@ void usb_disable_interface(struct usb_device *dev, struct usb_interface *intf)
 	}
 }
 
-/*
+/**
  * usb_disable_device - Disable all the endpoints for a USB device
  * @dev: the device whose endpoints are being disabled
  * @skip_ep0: 0 to disable endpoint 0, 1 to skip it.
@@ -1053,7 +1069,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 	int i;
 
 	dev_dbg(&dev->dev, "%s nuking %s URBs\n", __FUNCTION__,
-			skip_ep0 ? "non-ep0" : "all");
+		skip_ep0 ? "non-ep0" : "all");
 	for (i = skip_ep0; i < 16; ++i) {
 		usb_disable_endpoint(dev, i);
 		usb_disable_endpoint(dev, i + USB_DIR_IN);
@@ -1071,17 +1087,17 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 			interface = dev->actconfig->interface[i];
 			if (!device_is_registered(&interface->dev))
 				continue;
-			dev_dbg (&dev->dev, "unregistering interface %s\n",
+			dev_dbg(&dev->dev, "unregistering interface %s\n",
 				interface->dev.bus_id);
 			usb_remove_sysfs_intf_files(interface);
-			device_del (&interface->dev);
+			device_del(&interface->dev);
 		}
 
 		/* Now that the interfaces are unbound, nobody should
 		 * try to access them.
 		 */
 		for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
-			put_device (&dev->actconfig->interface[i]->dev);
+			put_device(&dev->actconfig->interface[i]->dev);
 			dev->actconfig->interface[i] = NULL;
 		}
 		dev->actconfig = NULL;
@@ -1090,8 +1106,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 	}
 }
 
-
-/*
+/**
  * usb_enable_endpoint - Enable an endpoint for USB communications
  * @dev: the device whose interface is being enabled
  * @ep: the endpoint
@@ -1116,7 +1131,7 @@ void usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep)
 	ep->enabled = 1;
 }
 
-/*
+/**
  * usb_enable_interface - Enable all the endpoints for an interface
  * @dev: the device whose interface is being enabled
  * @intf: pointer to the interface descriptor
@@ -1172,6 +1187,8 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
 	struct usb_host_interface *alt;
 	int ret;
 	int manual = 0;
+	unsigned int epaddr;
+	unsigned int pipe;
 
 	if (dev->state == USB_STATE_SUSPENDED)
 		return -EHOSTUNREACH;
@@ -1226,11 +1243,11 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
 		int i;
 
 		for (i = 0; i < alt->desc.bNumEndpoints; i++) {
-			unsigned int epaddr =
-				alt->endpoint[i].desc.bEndpointAddress;
-			unsigned int pipe =
-	__create_pipe(dev, USB_ENDPOINT_NUMBER_MASK & epaddr)
-	| (usb_endpoint_out(epaddr) ? USB_DIR_OUT : USB_DIR_IN);
+			epaddr = alt->endpoint[i].desc.bEndpointAddress;
+			pipe = __create_pipe(dev,
+					USB_ENDPOINT_NUMBER_MASK & epaddr) |
+					(usb_endpoint_out(epaddr) ?
+					USB_DIR_OUT : USB_DIR_IN);
 
 			usb_clear_halt(dev, pipe);
 		}
@@ -1253,6 +1270,7 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_set_interface);
 
 /**
  * usb_reset_configuration - lightweight device reset
@@ -1328,6 +1346,7 @@ int usb_reset_configuration(struct usb_device *dev)
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_reset_configuration);
 
 static void usb_release_interface(struct device *dev)
 {
@@ -1357,7 +1376,8 @@ static int usb_if_uevent(struct device *dev, struct kobj_uevent_env *env)
 		return -ENOMEM;
 
 	if (add_uevent_var(env,
-		   "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X",
+		   "MODALIAS=usb:"
+		   "v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X",
 		   le16_to_cpu(usb_dev->descriptor.idVendor),
 		   le16_to_cpu(usb_dev->descriptor.idProduct),
 		   le16_to_cpu(usb_dev->descriptor.bcdDevice),
@@ -1387,8 +1407,8 @@ struct device_type usb_if_device_type = {
 };
 
 static struct usb_interface_assoc_descriptor *find_iad(struct usb_device *dev,
-						       struct usb_host_config *config,
-						       u8 inum)
+						struct usb_host_config *config,
+						u8 inum)
 {
 	struct usb_interface_assoc_descriptor *retval = NULL;
 	struct usb_interface_assoc_descriptor *intf_assoc;
@@ -1415,7 +1435,6 @@ static struct usb_interface_assoc_descriptor *find_iad(struct usb_device *dev,
 	return retval;
 }
 
-
 /*
  * usb_set_configuration - Makes a particular device setting be current
  * @dev: the device whose configuration is being updated
@@ -1533,12 +1552,12 @@ free_interfaces:
 	 * getting rid of old interfaces means unbinding their drivers.
 	 */
 	if (dev->state != USB_STATE_ADDRESS)
-		usb_disable_device (dev, 1);	// Skip ep0
-
-	if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-			USB_REQ_SET_CONFIGURATION, 0, configuration, 0,
-			NULL, 0, USB_CTRL_SET_TIMEOUT)) < 0) {
+		usb_disable_device(dev, 1);	/* Skip ep0 */
 
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			      USB_REQ_SET_CONFIGURATION, 0, configuration, 0,
+			      NULL, 0, USB_CTRL_SET_TIMEOUT);
+	if (ret < 0) {
 		/* All the old state is gone, so what else can we do?
 		 * The device is probably useless now anyway.
 		 */
@@ -1585,11 +1604,11 @@ free_interfaces:
 		intf->dev.bus = &usb_bus_type;
 		intf->dev.type = &usb_if_device_type;
 		intf->dev.dma_mask = dev->dev.dma_mask;
-		device_initialize (&intf->dev);
+		device_initialize(&intf->dev);
 		mark_quiesced(intf);
-		sprintf (&intf->dev.bus_id[0], "%d-%s:%d.%d",
-			 dev->bus->busnum, dev->devpath,
-			 configuration, alt->desc.bInterfaceNumber);
+		sprintf(&intf->dev.bus_id[0], "%d-%s:%d.%d",
+			dev->bus->busnum, dev->devpath,
+			configuration, alt->desc.bInterfaceNumber);
 	}
 	kfree(new_interfaces);
 
@@ -1605,11 +1624,11 @@ free_interfaces:
 	for (i = 0; i < nintf; ++i) {
 		struct usb_interface *intf = cp->interface[i];
 
-		dev_dbg (&dev->dev,
+		dev_dbg(&dev->dev,
 			"adding %s (config #%d, interface %d)\n",
 			intf->dev.bus_id, configuration,
 			intf->cur_altsetting->desc.bInterfaceNumber);
-		ret = device_add (&intf->dev);
+		ret = device_add(&intf->dev);
 		if (ret != 0) {
 			dev_err(&dev->dev, "device_add(%s) --> %d\n",
 				intf->dev.bus_id, ret);
@@ -1677,22 +1696,3 @@ int usb_driver_set_configuration(struct usb_device *udev, int config)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_driver_set_configuration);
-
-// synchronous request completion model
-EXPORT_SYMBOL(usb_control_msg);
-EXPORT_SYMBOL(usb_bulk_msg);
-
-EXPORT_SYMBOL(usb_sg_init);
-EXPORT_SYMBOL(usb_sg_cancel);
-EXPORT_SYMBOL(usb_sg_wait);
-
-// synchronous control message convenience routines
-EXPORT_SYMBOL(usb_get_descriptor);
-EXPORT_SYMBOL(usb_get_status);
-EXPORT_SYMBOL(usb_string);
-
-// synchronous calls that also maintain usbcore state
-EXPORT_SYMBOL(usb_clear_halt);
-EXPORT_SYMBOL(usb_reset_configuration);
-EXPORT_SYMBOL(usb_set_interface);
-

drivers/usb/core/notify.c

@@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(usb_register_notify);
  * usb_unregister_notify - unregister a notifier callback
  * @nb: pointer to the notifier block for the callback events.
  *
- * usb_register_notifier() must have been previously called for this function
+ * usb_register_notify() must have been previously called for this function
  * to work properly.
  */
 void usb_unregister_notify(struct notifier_block *nb)

drivers/usb/core/otg_whitelist.h

@@ -14,7 +14,7 @@
  * mostly use of USB_DEVICE() or USB_DEVICE_VER() entries..
  *
  * YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
- */ 
+ */
 
 static struct usb_device_id whitelist_table [] = {
 
@@ -55,7 +55,7 @@ static int is_targeted(struct usb_device *dev)
 		return 1;
 
 	/* HNP test device is _never_ targeted (see OTG spec 6.6.6) */
-	if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a && 
+	if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a0a &&
 	     le16_to_cpu(dev->descriptor.idProduct) == 0xbadd))
 		return 0;
 
@@ -86,7 +86,7 @@ static int is_targeted(struct usb_device *dev)
 			continue;
 
 		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
-		    (id->bDeviceSubClass!= dev->descriptor.bDeviceSubClass))
+		    (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass))
 			continue;
 
 		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&

drivers/usb/core/sysfs.c

@@ -72,7 +72,7 @@ set_bConfigurationValue(struct device *dev, struct device_attribute *attr,
 	return (value < 0) ? value : count;
 }
 
-static DEVICE_ATTR(bConfigurationValue, S_IRUGO | S_IWUSR, 
+static DEVICE_ATTR(bConfigurationValue, S_IRUGO | S_IWUSR,
 		show_bConfigurationValue, set_bConfigurationValue);
 
 /* String fields */
@@ -248,6 +248,41 @@ static void remove_persist_attributes(struct device *dev)
 
 #ifdef	CONFIG_USB_SUSPEND
 
+static ssize_t
+show_connected_duration(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+
+	return sprintf(buf, "%u\n",
+			jiffies_to_msecs(jiffies - udev->connect_time));
+}
+
+static DEVICE_ATTR(connected_duration, S_IRUGO, show_connected_duration, NULL);
+
+/*
+ * If the device is resumed, the last time the device was suspended has
+ * been pre-subtracted from active_duration.  We add the current time to
+ * get the duration that the device was actually active.
+ *
+ * If the device is suspended, the active_duration is up-to-date.
+ */
+static ssize_t
+show_active_duration(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	int duration;
+
+	if (udev->state != USB_STATE_SUSPENDED)
+		duration = jiffies_to_msecs(jiffies + udev->active_duration);
+	else
+		duration = jiffies_to_msecs(udev->active_duration);
+	return sprintf(buf, "%u\n", duration);
+}
+
+static DEVICE_ATTR(active_duration, S_IRUGO, show_active_duration, NULL);
+
 static ssize_t
 show_autosuspend(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -365,12 +400,26 @@ static int add_power_attributes(struct device *dev)
 			rc = sysfs_add_file_to_group(&dev->kobj,
 					&dev_attr_level.attr,
 					power_group);
+		if (rc == 0)
+			rc = sysfs_add_file_to_group(&dev->kobj,
+					&dev_attr_connected_duration.attr,
+					power_group);
+		if (rc == 0)
+			rc = sysfs_add_file_to_group(&dev->kobj,
+					&dev_attr_active_duration.attr,
+					power_group);
 	}
 	return rc;
 }
 
 static void remove_power_attributes(struct device *dev)
 {
+	sysfs_remove_file_from_group(&dev->kobj,
+			&dev_attr_active_duration.attr,
+			power_group);
+	sysfs_remove_file_from_group(&dev->kobj,
+			&dev_attr_connected_duration.attr,
+			power_group);
 	sysfs_remove_file_from_group(&dev->kobj,
 			&dev_attr_level.attr,
 			power_group);
@@ -601,21 +650,21 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev)
 /* Interface Accociation Descriptor fields */
 #define usb_intf_assoc_attr(field, format_string)			\
 static ssize_t								\
-show_iad_##field (struct device *dev, struct device_attribute *attr,	\
+show_iad_##field(struct device *dev, struct device_attribute *attr,	\
 		char *buf)						\
 {									\
-	struct usb_interface *intf = to_usb_interface (dev);		\
+	struct usb_interface *intf = to_usb_interface(dev);		\
 									\
-	return sprintf (buf, format_string,				\
-			intf->intf_assoc->field); 		\
+	return sprintf(buf, format_string,				\
+			intf->intf_assoc->field); 			\
 }									\
 static DEVICE_ATTR(iad_##field, S_IRUGO, show_iad_##field, NULL);
 
-usb_intf_assoc_attr (bFirstInterface, "%02x\n")
-usb_intf_assoc_attr (bInterfaceCount, "%02d\n")
-usb_intf_assoc_attr (bFunctionClass, "%02x\n")
-usb_intf_assoc_attr (bFunctionSubClass, "%02x\n")
-usb_intf_assoc_attr (bFunctionProtocol, "%02x\n")
+usb_intf_assoc_attr(bFirstInterface, "%02x\n")
+usb_intf_assoc_attr(bInterfaceCount, "%02d\n")
+usb_intf_assoc_attr(bFunctionClass, "%02x\n")
+usb_intf_assoc_attr(bFunctionSubClass, "%02x\n")
+usb_intf_assoc_attr(bFunctionProtocol, "%02x\n")
 
 /* Interface fields */
 #define usb_intf_attr(field, format_string)				\

drivers/usb/core/urb.c

@@ -42,6 +42,7 @@ void usb_init_urb(struct urb *urb)
 		INIT_LIST_HEAD(&urb->anchor_list);
 	}
 }
+EXPORT_SYMBOL_GPL(usb_init_urb);
 
 /**
  * usb_alloc_urb - creates a new urb for a USB driver to use
@@ -73,6 +74,7 @@ struct urb *usb_alloc_urb(int iso_packets, gfp_t mem_flags)
 	usb_init_urb(urb);
 	return urb;
 }
+EXPORT_SYMBOL_GPL(usb_alloc_urb);
 
 /**
  * usb_free_urb - frees the memory used by a urb when all users of it are finished
@@ -89,6 +91,7 @@ void usb_free_urb(struct urb *urb)
 	if (urb)
 		kref_put(&urb->kref, urb_destroy);
 }
+EXPORT_SYMBOL_GPL(usb_free_urb);
 
 /**
  * usb_get_urb - increments the reference count of the urb
@@ -100,12 +103,13 @@ void usb_free_urb(struct urb *urb)
  *
  * A pointer to the urb with the incremented reference counter is returned.
  */
-struct urb * usb_get_urb(struct urb *urb)
+struct urb *usb_get_urb(struct urb *urb)
 {
 	if (urb)
 		kref_get(&urb->kref);
 	return urb;
 }
+EXPORT_SYMBOL_GPL(usb_get_urb);
 
 /**
  * usb_anchor_urb - anchors an URB while it is processed
@@ -172,7 +176,7 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb);
  * describing that request to the USB subsystem.  Request completion will
  * be indicated later, asynchronously, by calling the completion handler.
  * The three types of completion are success, error, and unlink
- * (a software-induced fault, also called "request cancellation").  
+ * (a software-induced fault, also called "request cancellation").
  *
  * URBs may be submitted in interrupt context.
  *
@@ -255,7 +259,7 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb);
  *       semaphores), or
  *   (c) current->state != TASK_RUNNING, this is the case only after
  *       you've changed it.
- * 
+ *
  * GFP_NOIO is used in the block io path and error handling of storage
  * devices.
  *
@@ -284,7 +288,8 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 
 	if (!urb || urb->hcpriv || !urb->complete)
 		return -EINVAL;
-	if (!(dev = urb->dev) || dev->state < USB_STATE_DEFAULT)
+	dev = urb->dev;
+	if ((!dev) || (dev->state < USB_STATE_DEFAULT))
 		return -ENODEV;
 
 	/* For now, get the endpoint from the pipe.  Eventually drivers
@@ -347,11 +352,11 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			max *= mult;
 		}
 
-		if (urb->number_of_packets <= 0)		    
+		if (urb->number_of_packets <= 0)
 			return -EINVAL;
 		for (n = 0; n < urb->number_of_packets; n++) {
 			len = urb->iso_frame_desc[n].length;
-			if (len < 0 || len > max) 
+			if (len < 0 || len > max)
 				return -EMSGSIZE;
 			urb->iso_frame_desc[n].status = -EXDEV;
 			urb->iso_frame_desc[n].actual_length = 0;
@@ -416,7 +421,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 		/* too big? */
 		switch (dev->speed) {
 		case USB_SPEED_HIGH:	/* units are microframes */
-			// NOTE usb handles 2^15
+			/* NOTE usb handles 2^15 */
 			if (urb->interval > (1024 * 8))
 				urb->interval = 1024 * 8;
 			max = 1024 * 8;
@@ -426,12 +431,12 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			if (xfertype == USB_ENDPOINT_XFER_INT) {
 				if (urb->interval > 255)
 					return -EINVAL;
-				// NOTE ohci only handles up to 32
+				/* NOTE ohci only handles up to 32 */
 				max = 128;
 			} else {
 				if (urb->interval > 1024)
 					urb->interval = 1024;
-				// NOTE usb and ohci handle up to 2^15
+				/* NOTE usb and ohci handle up to 2^15 */
 				max = 1024;
 			}
 			break;
@@ -444,6 +449,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 
 	return usb_hcd_submit_urb(urb, mem_flags);
 }
+EXPORT_SYMBOL_GPL(usb_submit_urb);
 
 /*-------------------------------------------------------------------*/
 
@@ -514,6 +520,7 @@ int usb_unlink_urb(struct urb *urb)
 		return -EIDRM;
 	return usb_hcd_unlink_urb(urb, -ECONNRESET);
 }
+EXPORT_SYMBOL_GPL(usb_unlink_urb);
 
 /**
  * usb_kill_urb - cancel a transfer request and wait for it to finish
@@ -553,6 +560,7 @@ void usb_kill_urb(struct urb *urb)
 	--urb->reject;
 	mutex_unlock(&reject_mutex);
 }
+EXPORT_SYMBOL_GPL(usb_kill_urb);
 
 /**
  * usb_kill_anchored_urbs - cancel transfer requests en masse
@@ -567,7 +575,8 @@ void usb_kill_anchored_urbs(struct usb_anchor *anchor)
 
 	spin_lock_irq(&anchor->lock);
 	while (!list_empty(&anchor->urb_list)) {
-		victim = list_entry(anchor->urb_list.prev, struct urb, anchor_list);
+		victim = list_entry(anchor->urb_list.prev, struct urb,
+				    anchor_list);
 		/* we must make sure the URB isn't freed before we kill it*/
 		usb_get_urb(victim);
 		spin_unlock_irq(&anchor->lock);
@@ -595,11 +604,3 @@ int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
 				  msecs_to_jiffies(timeout));
 }
 EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout);
-
-EXPORT_SYMBOL(usb_init_urb);
-EXPORT_SYMBOL(usb_alloc_urb);
-EXPORT_SYMBOL(usb_free_urb);
-EXPORT_SYMBOL(usb_get_urb);
-EXPORT_SYMBOL(usb_submit_urb);
-EXPORT_SYMBOL(usb_unlink_urb);
-EXPORT_SYMBOL(usb_kill_urb);

drivers/usb/core/usb.c

@@ -96,6 +96,7 @@ struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev,
 
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(usb_ifnum_to_if);
 
 /**
  * usb_altnum_to_altsetting - get the altsetting structure with a given
@@ -115,8 +116,9 @@ struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev,
  * Don't call this function unless you are bound to the intf interface
  * or you have locked the device!
  */
-struct usb_host_interface *usb_altnum_to_altsetting(const struct usb_interface *intf,
-						    unsigned int altnum)
+struct usb_host_interface *usb_altnum_to_altsetting(
+					const struct usb_interface *intf,
+					unsigned int altnum)
 {
 	int i;
 
@@ -126,13 +128,14 @@ struct usb_host_interface *usb_altnum_to_altsetting(const struct usb_interface *
 	}
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(usb_altnum_to_altsetting);
 
 struct find_interface_arg {
 	int minor;
 	struct usb_interface *interface;
 };
 
-static int __find_interface(struct device * dev, void * data)
+static int __find_interface(struct device *dev, void *data)
 {
 	struct find_interface_arg *arg = data;
 	struct usb_interface *intf;
@@ -154,7 +157,7 @@ static int __find_interface(struct device * dev, void * data)
  * @drv: the driver whose current configuration is considered
  * @minor: the minor number of the desired device
  *
- * This walks the driver device list and returns a pointer to the interface 
+ * This walks the driver device list and returns a pointer to the interface
  * with the matching minor.  Note, this only works for devices that share the
  * USB major number.
  */
@@ -170,6 +173,7 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor)
 					__find_interface);
 	return argb.interface;
 }
+EXPORT_SYMBOL_GPL(usb_find_interface);
 
 /**
  * usb_release_dev - free a usb device structure when all users of it are finished.
@@ -230,7 +234,7 @@ static int ksuspend_usb_init(void)
 	 * singlethreaded.  Its job doesn't justify running on more
 	 * than one CPU.
 	 */
-	ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd");
+	ksuspend_usb_wq = create_singlethread_workqueue("ksuspend_usbd");
 	if (!ksuspend_usb_wq)
 		return -ENOMEM;
 	return 0;
@@ -269,8 +273,8 @@ static unsigned usb_bus_is_wusb(struct usb_bus *bus)
  *
  * This call may not be used in a non-sleeping context.
  */
-struct usb_device *
-usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1)
+struct usb_device *usb_alloc_dev(struct usb_device *parent,
+				 struct usb_bus *bus, unsigned port1)
 {
 	struct usb_device *dev;
 	struct usb_hcd *usb_hcd = container_of(bus, struct usb_hcd, self);
@@ -339,6 +343,8 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1)
 	mutex_init(&dev->pm_mutex);
 	INIT_DELAYED_WORK(&dev->autosuspend, usb_autosuspend_work);
 	dev->autosuspend_delay = usb_autosuspend_delay * HZ;
+	dev->connect_time = jiffies;
+	dev->active_duration = -jiffies;
 #endif
 	if (root_hub)	/* Root hub always ok [and always wired] */
 		dev->authorized = 1;
@@ -367,6 +373,7 @@ struct usb_device *usb_get_dev(struct usb_device *dev)
 		get_device(&dev->dev);
 	return dev;
 }
+EXPORT_SYMBOL_GPL(usb_get_dev);
 
 /**
  * usb_put_dev - release a use of the usb device structure
@@ -380,6 +387,7 @@ void usb_put_dev(struct usb_device *dev)
 	if (dev)
 		put_device(&dev->dev);
 }
+EXPORT_SYMBOL_GPL(usb_put_dev);
 
 /**
  * usb_get_intf - increments the reference count of the usb interface structure
@@ -400,6 +408,7 @@ struct usb_interface *usb_get_intf(struct usb_interface *intf)
 		get_device(&intf->dev);
 	return intf;
 }
+EXPORT_SYMBOL_GPL(usb_get_intf);
 
 /**
  * usb_put_intf - release a use of the usb interface structure
@@ -414,7 +423,7 @@ void usb_put_intf(struct usb_interface *intf)
 	if (intf)
 		put_device(&intf->dev);
 }
-
+EXPORT_SYMBOL_GPL(usb_put_intf);
 
 /*			USB device locking
  *
@@ -461,11 +470,11 @@ int usb_lock_device_for_reset(struct usb_device *udev,
 		return -EHOSTUNREACH;
 	if (iface) {
 		switch (iface->condition) {
-		  case USB_INTERFACE_BINDING:
+		case USB_INTERFACE_BINDING:
 			return 0;
-		  case USB_INTERFACE_BOUND:
+		case USB_INTERFACE_BOUND:
 			break;
-		  default:
+		default:
 			return -EINTR;
 		}
 	}
@@ -487,7 +496,7 @@ int usb_lock_device_for_reset(struct usb_device *udev,
 	}
 	return 1;
 }
-
+EXPORT_SYMBOL_GPL(usb_lock_device_for_reset);
 
 static struct usb_device *match_device(struct usb_device *dev,
 				       u16 vendor_id, u16 product_id)
@@ -540,10 +549,10 @@ struct usb_device *usb_find_device(u16 vendor_id, u16 product_id)
 	struct list_head *buslist;
 	struct usb_bus *bus;
 	struct usb_device *dev = NULL;
-	
+
 	mutex_lock(&usb_bus_list_lock);
 	for (buslist = usb_bus_list.next;
-	     buslist != &usb_bus_list; 
+	     buslist != &usb_bus_list;
 	     buslist = buslist->next) {
 		bus = container_of(buslist, struct usb_bus, bus_list);
 		if (!bus->root_hub)
@@ -576,6 +585,7 @@ int usb_get_current_frame_number(struct usb_device *dev)
 {
 	return usb_hcd_get_frame_number(dev);
 }
+EXPORT_SYMBOL_GPL(usb_get_current_frame_number);
 
 /*-------------------------------------------------------------------*/
 /*
@@ -584,7 +594,7 @@ int usb_get_current_frame_number(struct usb_device *dev)
  */
 
 int __usb_get_extra_descriptor(char *buffer, unsigned size,
-	unsigned char type, void **ptr)
+			       unsigned char type, void **ptr)
 {
 	struct usb_descriptor_header *header;
 
@@ -595,7 +605,7 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size,
 			printk(KERN_ERR
 				"%s: bogus descriptor, type %d length %d\n",
 				usbcore_name,
-				header->bDescriptorType, 
+				header->bDescriptorType,
 				header->bLength);
 			return -1;
 		}
@@ -610,6 +620,7 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size,
 	}
 	return -1;
 }
+EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor);
 
 /**
  * usb_buffer_alloc - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
@@ -633,17 +644,14 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size,
  *
  * When the buffer is no longer used, free it with usb_buffer_free().
  */
-void *usb_buffer_alloc(
-	struct usb_device *dev,
-	size_t size,
-	gfp_t mem_flags,
-	dma_addr_t *dma
-)
+void *usb_buffer_alloc(struct usb_device *dev, size_t size, gfp_t mem_flags,
+		       dma_addr_t *dma)
 {
 	if (!dev || !dev->bus)
 		return NULL;
 	return hcd_buffer_alloc(dev->bus, size, mem_flags, dma);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_alloc);
 
 /**
  * usb_buffer_free - free memory allocated with usb_buffer_alloc()
@@ -656,12 +664,8 @@ void *usb_buffer_alloc(
  * been allocated using usb_buffer_alloc(), and the parameters must match
  * those provided in that allocation request.
  */
-void usb_buffer_free(
-	struct usb_device *dev,
-	size_t size,
-	void *addr,
-	dma_addr_t dma
-)
+void usb_buffer_free(struct usb_device *dev, size_t size, void *addr,
+		     dma_addr_t dma)
 {
 	if (!dev || !dev->bus)
 		return;
@@ -669,6 +673,7 @@ void usb_buffer_free(
 		return;
 	hcd_buffer_free(dev->bus, size, addr, dma);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_free);
 
 /**
  * usb_buffer_map - create DMA mapping(s) for an urb
@@ -708,14 +713,15 @@ struct urb *usb_buffer_map(struct urb *urb)
 					urb->setup_packet,
 					sizeof(struct usb_ctrlrequest),
 					DMA_TO_DEVICE);
-	// FIXME generic api broken like pci, can't report errors
-	// if (urb->transfer_dma == DMA_ADDR_INVALID) return 0;
+	/* FIXME generic api broken like pci, can't report errors */
+	/* if (urb->transfer_dma == DMA_ADDR_INVALID) return 0; */
 	} else
 		urb->transfer_dma = ~0;
 	urb->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP
 				| URB_NO_SETUP_DMA_MAP);
 	return urb;
 }
+EXPORT_SYMBOL_GPL(usb_buffer_map);
 #endif  /*  0  */
 
 /* XXX DISABLED, no users currently.  If you wish to re-enable this
@@ -753,6 +759,7 @@ void usb_buffer_dmasync(struct urb *urb)
 					DMA_TO_DEVICE);
 	}
 }
+EXPORT_SYMBOL_GPL(usb_buffer_dmasync);
 #endif
 
 /**
@@ -788,6 +795,7 @@ void usb_buffer_unmap(struct urb *urb)
 	urb->transfer_flags &= ~(URB_NO_TRANSFER_DMA_MAP
 				| URB_NO_SETUP_DMA_MAP);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_unmap);
 #endif  /*  0  */
 
 /**
@@ -828,10 +836,11 @@ int usb_buffer_map_sg(const struct usb_device *dev, int is_in,
 			|| !controller->dma_mask)
 		return -1;
 
-	// FIXME generic api broken like pci, can't report errors
+	/* FIXME generic api broken like pci, can't report errors */
 	return dma_map_sg(controller, sg, nents,
 			is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_map_sg);
 
 /* XXX DISABLED, no users currently.  If you wish to re-enable this
  * XXX please determine whether the sync is to transfer ownership of
@@ -865,6 +874,7 @@ void usb_buffer_dmasync_sg(const struct usb_device *dev, int is_in,
 	dma_sync_sg(controller, sg, n_hw_ents,
 			is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_dmasync_sg);
 #endif
 
 /**
@@ -891,6 +901,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
 	dma_unmap_sg(controller, sg, n_hw_ents,
 			is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
 }
+EXPORT_SYMBOL_GPL(usb_buffer_unmap_sg);
 
 /* format to disable USB on kernel command line is: nousb */
 __module_param_call("", nousb, param_set_bool, param_get_bool, &nousb, 0444);
@@ -902,6 +913,7 @@ int usb_disabled(void)
 {
 	return nousb;
 }
+EXPORT_SYMBOL_GPL(usb_disabled);
 
 /*
  * Init
@@ -918,7 +930,7 @@ static int __init usb_init(void)
 	if (retval)
 		goto out;
 	retval = bus_register(&usb_bus_type);
-	if (retval) 
+	if (retval)
 		goto bus_register_failed;
 	retval = usb_host_init();
 	if (retval)
@@ -983,45 +995,4 @@ static void __exit usb_exit(void)
 
 subsys_initcall(usb_init);
 module_exit(usb_exit);
-
-/*
- * USB may be built into the kernel or be built as modules.
- * These symbols are exported for device (or host controller)
- * driver modules to use.
- */
-
-EXPORT_SYMBOL(usb_disabled);
-
-EXPORT_SYMBOL_GPL(usb_get_intf);
-EXPORT_SYMBOL_GPL(usb_put_intf);
-
-EXPORT_SYMBOL(usb_put_dev);
-EXPORT_SYMBOL(usb_get_dev);
-EXPORT_SYMBOL(usb_hub_tt_clear_buffer);
-
-EXPORT_SYMBOL(usb_lock_device_for_reset);
-
-EXPORT_SYMBOL(usb_find_interface);
-EXPORT_SYMBOL(usb_ifnum_to_if);
-EXPORT_SYMBOL(usb_altnum_to_altsetting);
-
-EXPORT_SYMBOL(__usb_get_extra_descriptor);
-
-EXPORT_SYMBOL(usb_get_current_frame_number);
-
-EXPORT_SYMBOL(usb_buffer_alloc);
-EXPORT_SYMBOL(usb_buffer_free);
-
-#if 0
-EXPORT_SYMBOL(usb_buffer_map);
-EXPORT_SYMBOL(usb_buffer_dmasync);
-EXPORT_SYMBOL(usb_buffer_unmap);
-#endif
-
-EXPORT_SYMBOL(usb_buffer_map_sg);
-#if 0
-EXPORT_SYMBOL(usb_buffer_dmasync_sg);
-#endif
-EXPORT_SYMBOL(usb_buffer_unmap_sg);
-
 MODULE_LICENSE("GPL");

drivers/usb/core/usb.h

@@ -1,22 +1,23 @@
 /* Functions local to drivers/usb/core/ */
 
-extern int usb_create_sysfs_dev_files (struct usb_device *dev);
-extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
-extern int usb_create_sysfs_intf_files (struct usb_interface *intf);
-extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);
-extern int usb_create_ep_files(struct device *parent, struct usb_host_endpoint *endpoint,
+extern int usb_create_sysfs_dev_files(struct usb_device *dev);
+extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
+extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
+extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
+extern int usb_create_ep_files(struct device *parent,
+				struct usb_host_endpoint *endpoint,
 				struct usb_device *udev);
 extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
 
 extern void usb_enable_endpoint(struct usb_device *dev,
 		struct usb_host_endpoint *ep);
-extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
-extern void usb_disable_interface (struct usb_device *dev,
+extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr);
+extern void usb_disable_interface(struct usb_device *dev,
 		struct usb_interface *intf);
 extern void usb_release_interface_cache(struct kref *ref);
-extern void usb_disable_device (struct usb_device *dev, int skip_ep0);
-extern int usb_deauthorize_device (struct usb_device *);
-extern int usb_authorize_device (struct usb_device *);
+extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
+extern int usb_deauthorize_device(struct usb_device *);
+extern int usb_authorize_device(struct usb_device *);
 extern void usb_detect_quirks(struct usb_device *udev);
 
 extern int usb_get_device_descriptor(struct usb_device *dev,

drivers/usb/gadget/Kconfig

@@ -12,10 +12,9 @@
 # With help from a special transceiver and a "Mini-AB" jack, systems with
 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
 #
-menu "USB Gadget Support"
 
-config USB_GADGET
-	tristate "Support for USB Gadgets"
+menuconfig USB_GADGET
+	tristate "USB Gadget Support"
 	help
 	   USB is a master/slave protocol, organized with one master
 	   host (such as a PC) controlling up to 127 peripheral devices.
@@ -42,6 +41,8 @@ config USB_GADGET
 	   For more information, see <http://www.linux-usb.org/gadget> and
 	   the kernel DocBook documentation for this API.
 
+if USB_GADGET
+
 config USB_GADGET_DEBUG
 	boolean "Debugging messages"
 	depends on USB_GADGET && DEBUG_KERNEL && EXPERIMENTAL
@@ -220,6 +221,16 @@ config USB_M66592
 	default USB_GADGET
 	select USB_GADGET_SELECTED
 
+config SUPERH_BUILT_IN_M66592
+	boolean "Enable SuperH built-in USB like the M66592"
+	depends on USB_GADGET_M66592 && CPU_SUBTYPE_SH7722
+	help
+	   SH7722 has USB like the M66592.
+
+	   The transfer rate is very slow when use "Ethernet Gadget".
+	   However, this problem is improved if change a value of
+	   NET_IP_ALIGN to 4.
+
 config USB_GADGET_GOKU
 	boolean "Toshiba TC86C001 'Goku-S'"
 	depends on PCI
@@ -538,6 +549,20 @@ config USB_MIDI_GADGET
 	  Say "y" to link the driver statically, or "m" to build a
 	  dynamically linked module called "g_midi".
 
+config USB_G_PRINTER
+	tristate "Printer Gadget"
+	help
+	  The Printer Gadget channels data between the USB host and a
+	  userspace program driving the print engine. The user space
+	  program reads and writes the device file /dev/g_printer to
+	  receive or send printer data. It can use ioctl calls to
+	  the device file to get or set printer status.
+
+	  Say "y" to link the driver statically, or "m" to build a
+	  dynamically linked module called "g_printer".
+
+	  For more information, see Documentation/usb/gadget_printer.txt
+	  which includes sample code for accessing the device file.
 
 # put drivers that need isochronous transfer support (for audio
 # or video class gadget drivers), or specific hardware, here.
@@ -546,4 +571,4 @@ config USB_MIDI_GADGET
 
 endchoice
 
-endmenu
+endif # USB_GADGET

drivers/usb/gadget/Makefile

@@ -28,6 +28,8 @@ g_midi-objs			:= gmidi.o usbstring.o config.o epautoconf.o
 gadgetfs-objs			:= inode.o
 g_file_storage-objs		:= file_storage.o usbstring.o config.o \
 					epautoconf.o
+g_printer-objs			:= printer.o usbstring.o config.o \
+					epautoconf.o
 
 ifeq ($(CONFIG_USB_ETH_RNDIS),y)
 	g_ether-objs		+= rndis.o
@@ -38,5 +40,6 @@ obj-$(CONFIG_USB_ETH)		+= g_ether.o
 obj-$(CONFIG_USB_GADGETFS)	+= gadgetfs.o
 obj-$(CONFIG_USB_FILE_STORAGE)	+= g_file_storage.o
 obj-$(CONFIG_USB_G_SERIAL)	+= g_serial.o
+obj-$(CONFIG_USB_G_PRINTER)	+= g_printer.o
 obj-$(CONFIG_USB_MIDI_GADGET)	+= g_midi.o
 

drivers/usb/gadget/amd5536udc.c

@@ -1244,7 +1244,7 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp)
 		/* stop OUT naking */
 		if (!ep->in) {
 			if (!use_dma && udc_rxfifo_pending) {
-				DBG(dev, "udc_queue(): pending bytes in"
+				DBG(dev, "udc_queue(): pending bytes in "
 					"rxfifo after nyet\n");
 				/*
 				 * read pending bytes afer nyet:
@@ -2038,6 +2038,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	driver->unbind(&dev->gadget);
+	dev->gadget.dev.driver = NULL;
 	dev->driver = NULL;
 
 	/* set SD */

drivers/usb/gadget/at91_udc.c

@@ -21,8 +21,7 @@
  * Boston, MA  02111-1307, USA.
  */
 
-#undef	DEBUG
-#undef	VERBOSE
+#undef	VERBOSE_DEBUG
 #undef	PACKET_TRACE
 
 #include <linux/kernel.h>
@@ -46,8 +45,8 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/mach-types.h>
+#include <asm/gpio.h>
 
-#include <asm/arch/gpio.h>
 #include <asm/arch/board.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/at91sam9261_matrix.h>
@@ -580,7 +579,7 @@ static int at91_ep_disable (struct usb_ep * _ep)
  */
 
 static struct usb_request *
-at91_ep_alloc_request(struct usb_ep *_ep, unsigned int gfp_flags)
+at91_ep_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
 {
 	struct at91_request *req;
 
@@ -881,6 +880,8 @@ static void clk_off(struct at91_udc *udc)
  */
 static void pullup(struct at91_udc *udc, int is_on)
 {
+	int	active = !udc->board.pullup_active_low;
+
 	if (!udc->enabled || !udc->vbus)
 		is_on = 0;
 	DBG("%sactive\n", is_on ? "" : "in");
@@ -890,7 +891,7 @@ static void pullup(struct at91_udc *udc, int is_on)
 		at91_udp_write(udc, AT91_UDP_ICR, AT91_UDP_RXRSM);
 		at91_udp_write(udc, AT91_UDP_TXVC, 0);
 		if (cpu_is_at91rm9200())
-			at91_set_gpio_value(udc->board.pullup_pin, 1);
+			gpio_set_value(udc->board.pullup_pin, active);
 		else if (cpu_is_at91sam9260() || cpu_is_at91sam9263()) {
 			u32	txvc = at91_udp_read(udc, AT91_UDP_TXVC);
 
@@ -908,7 +909,7 @@ static void pullup(struct at91_udc *udc, int is_on)
 		at91_udp_write(udc, AT91_UDP_IDR, AT91_UDP_RXRSM);
 		at91_udp_write(udc, AT91_UDP_TXVC, AT91_UDP_TXVC_TXVDIS);
 		if (cpu_is_at91rm9200())
-			at91_set_gpio_value(udc->board.pullup_pin, 0);
+			gpio_set_value(udc->board.pullup_pin, !active);
 		else if (cpu_is_at91sam9260() || cpu_is_at91sam9263()) {
 			u32	txvc = at91_udp_read(udc, AT91_UDP_TXVC);
 
@@ -1153,7 +1154,7 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr)
 			| USB_REQ_GET_STATUS:
 		tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
 		ep = &udc->ep[tmp];
-		if (tmp > NUM_ENDPOINTS || (tmp && !ep->desc))
+		if (tmp >= NUM_ENDPOINTS || (tmp && !ep->desc))
 			goto stall;
 
 		if (tmp) {
@@ -1176,7 +1177,7 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr)
 			| USB_REQ_SET_FEATURE:
 		tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
 		ep = &udc->ep[tmp];
-		if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS)
+		if (w_value != USB_ENDPOINT_HALT || tmp >= NUM_ENDPOINTS)
 			goto stall;
 		if (!ep->desc || ep->is_iso)
 			goto stall;
@@ -1195,7 +1196,7 @@ static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr)
 			| USB_REQ_CLEAR_FEATURE:
 		tmp = w_index & USB_ENDPOINT_NUMBER_MASK;
 		ep = &udc->ep[tmp];
-		if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS)
+		if (w_value != USB_ENDPOINT_HALT || tmp >= NUM_ENDPOINTS)
 			goto stall;
 		if (tmp == 0)
 			goto succeed;
@@ -1551,7 +1552,7 @@ static irqreturn_t at91_vbus_irq(int irq, void *_udc)
 
 	/* vbus needs at least brief debouncing */
 	udelay(10);
-	value = at91_get_gpio_value(udc->board.vbus_pin);
+	value = gpio_get_value(udc->board.vbus_pin);
 	if (value != udc->vbus)
 		at91_vbus_session(&udc->gadget, value);
 
@@ -1616,6 +1617,8 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 	local_irq_enable();
 
 	driver->unbind(&udc->gadget);
+	udc->gadget.dev.driver = NULL;
+	udc->gadget.dev.driver_data = NULL;
 	udc->driver = NULL;
 
 	DBG("unbound from %s\n", driver->driver.name);
@@ -1645,12 +1648,12 @@ static int __init at91udc_probe(struct platform_device *pdev)
 	}
 
 	if (pdev->num_resources != 2) {
-		DBG("invalid num_resources");
+		DBG("invalid num_resources\n");
 		return -ENODEV;
 	}
 	if ((pdev->resource[0].flags != IORESOURCE_MEM)
 			|| (pdev->resource[1].flags != IORESOURCE_IRQ)) {
-		DBG("invalid resource type");
+		DBG("invalid resource type\n");
 		return -ENODEV;
 	}
 
@@ -1672,10 +1675,26 @@ static int __init at91udc_probe(struct platform_device *pdev)
 	udc->pdev = pdev;
 	udc->enabled = 0;
 
+	/* rm9200 needs manual D+ pullup; off by default */
+	if (cpu_is_at91rm9200()) {
+		if (udc->board.pullup_pin <= 0) {
+			DBG("no D+ pullup?\n");
+			retval = -ENODEV;
+			goto fail0;
+		}
+		retval = gpio_request(udc->board.pullup_pin, "udc_pullup");
+		if (retval) {
+			DBG("D+ pullup is busy\n");
+			goto fail0;
+		}
+		gpio_direction_output(udc->board.pullup_pin,
+				udc->board.pullup_active_low);
+	}
+
 	udc->udp_baseaddr = ioremap(res->start, res->end - res->start + 1);
 	if (!udc->udp_baseaddr) {
-		release_mem_region(res->start, res->end - res->start + 1);
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto fail0a;
 	}
 
 	udc_reinit(udc);
@@ -1686,12 +1705,13 @@ static int __init at91udc_probe(struct platform_device *pdev)
 	if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk)) {
 		DBG("clocks missing\n");
 		retval = -ENODEV;
-		goto fail0;
+		/* NOTE: we "know" here that refcounts on these are NOPs */
+		goto fail0b;
 	}
 
 	retval = device_register(&udc->gadget.dev);
 	if (retval < 0)
-		goto fail0;
+		goto fail0b;
 
 	/* don't do anything until we have both gadget driver and VBUS */
 	clk_enable(udc->iclk);
@@ -1703,25 +1723,32 @@ static int __init at91udc_probe(struct platform_device *pdev)
 
 	/* request UDC and maybe VBUS irqs */
 	udc->udp_irq = platform_get_irq(pdev, 0);
-	if (request_irq(udc->udp_irq, at91_udc_irq,
-			IRQF_DISABLED, driver_name, udc)) {
+	retval = request_irq(udc->udp_irq, at91_udc_irq,
+			IRQF_DISABLED, driver_name, udc);
+	if (retval < 0) {
 		DBG("request irq %d failed\n", udc->udp_irq);
-		retval = -EBUSY;
 		goto fail1;
 	}
 	if (udc->board.vbus_pin > 0) {
+		retval = gpio_request(udc->board.vbus_pin, "udc_vbus");
+		if (retval < 0) {
+			DBG("request vbus pin failed\n");
+			goto fail2;
+		}
+		gpio_direction_input(udc->board.vbus_pin);
+
 		/*
 		 * Get the initial state of VBUS - we cannot expect
 		 * a pending interrupt.
 		 */
-		udc->vbus = at91_get_gpio_value(udc->board.vbus_pin);
+		udc->vbus = gpio_get_value(udc->board.vbus_pin);
 		if (request_irq(udc->board.vbus_pin, at91_vbus_irq,
 				IRQF_DISABLED, driver_name, udc)) {
 			DBG("request vbus irq %d failed\n",
 					udc->board.vbus_pin);
 			free_irq(udc->udp_irq, udc);
 			retval = -EBUSY;
-			goto fail1;
+			goto fail3;
 		}
 	} else {
 		DBG("no VBUS detection, assuming always-on\n");
@@ -1734,8 +1761,18 @@ static int __init at91udc_probe(struct platform_device *pdev)
 	INFO("%s version %s\n", driver_name, DRIVER_VERSION);
 	return 0;
 
+fail3:
+	if (udc->board.vbus_pin > 0)
+		gpio_free(udc->board.vbus_pin);
+fail2:
+	free_irq(udc->udp_irq, udc);
 fail1:
 	device_unregister(&udc->gadget.dev);
+fail0b:
+	iounmap(udc->udp_baseaddr);
+fail0a:
+	if (cpu_is_at91rm9200())
+		gpio_free(udc->board.pullup_pin);
 fail0:
 	release_mem_region(res->start, res->end - res->start + 1);
 	DBG("%s probe failed, %d\n", driver_name, retval);
@@ -1756,12 +1793,18 @@ static int __exit at91udc_remove(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 0);
 	remove_debug_file(udc);
-	if (udc->board.vbus_pin > 0)
+	if (udc->board.vbus_pin > 0) {
 		free_irq(udc->board.vbus_pin, udc);
+		gpio_free(udc->board.vbus_pin);
+	}
 	free_irq(udc->udp_irq, udc);
 	device_unregister(&udc->gadget.dev);
 
 	iounmap(udc->udp_baseaddr);
+
+	if (cpu_is_at91rm9200())
+		gpio_free(udc->board.pullup_pin);
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(res->start, res->end - res->start + 1);
 

drivers/usb/gadget/at91_udc.h

@@ -53,7 +53,7 @@
 #define     AT91_UDP_RXRSM	(1 <<  9)	/* USB Resume Interrupt Status */
 #define     AT91_UDP_EXTRSM	(1 << 10)	/* External Resume Interrupt Status [AT91RM9200 only] */
 #define     AT91_UDP_SOFINT	(1 << 11)	/* Start of Frame Interrupt Status */
-#define     AT91_UDP_ENDBUSRES	(1 << 12)	/* End of Bus Reset Interrpt Status */
+#define     AT91_UDP_ENDBUSRES	(1 << 12)	/* End of Bus Reset Interrupt Status */
 #define     AT91_UDP_WAKEUP	(1 << 13)	/* USB Wakeup Interrupt Status [AT91RM9200 only] */
 
 #define AT91_UDP_ICR		0x20		/* Interrupt Clear Register */
@@ -158,13 +158,7 @@ struct at91_request {
 
 /*-------------------------------------------------------------------------*/
 
-#ifdef DEBUG
-#define DBG(stuff...)		printk(KERN_DEBUG "udc: " stuff)
-#else
-#define DBG(stuff...)		do{}while(0)
-#endif
-
-#ifdef VERBOSE
+#ifdef VERBOSE_DEBUG
 #    define VDBG		DBG
 #else
 #    define VDBG(stuff...)	do{}while(0)
@@ -176,9 +170,10 @@ struct at91_request {
 #    define PACKET(stuff...)	do{}while(0)
 #endif
 
-#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
-#define WARN(stuff...)		printk(KERN_WARNING "udc: " stuff)
-#define INFO(stuff...)		printk(KERN_INFO "udc: " stuff)
+#define ERR(stuff...)		pr_err("udc: " stuff)
+#define WARN(stuff...)		pr_warning("udc: " stuff)
+#define INFO(stuff...)		pr_info("udc: " stuff)
+#define DBG(stuff...)		pr_debug("udc: " stuff)
 
 #endif
 

drivers/usb/gadget/atmel_usba_udc.c

@@ -1384,8 +1384,7 @@ delegate:
 	return retval;
 
 stall:
-	printk(KERN_ERR
-		"udc: %s: Invalid setup request: %02x.%02x v%04x i%04x l%d, "
+	pr_err("udc: %s: Invalid setup request: %02x.%02x v%04x i%04x l%d, "
 		"halting endpoint...\n",
 		ep->ep.name, crq->bRequestType, crq->bRequest,
 		le16_to_cpu(crq->wValue), le16_to_cpu(crq->wIndex),
@@ -1456,8 +1455,7 @@ restart:
 				set_protocol_stall(udc, ep);
 			break;
 		default:
-			printk(KERN_ERR
-				"udc: %s: TXCOMP: Invalid endpoint state %d, "
+			pr_err("udc: %s: TXCOMP: Invalid endpoint state %d, "
 				"halting endpoint...\n",
 				ep->ep.name, ep->state);
 			set_protocol_stall(udc, ep);
@@ -1486,8 +1484,7 @@ restart:
 		default:
 			usba_ep_writel(ep, CLR_STA, USBA_RX_BK_RDY);
 			usba_ep_writel(ep, CTL_DIS, USBA_RX_BK_RDY);
-			printk(KERN_ERR
-				"udc: %s: RXRDY: Invalid endpoint state %d, "
+			pr_err("udc: %s: RXRDY: Invalid endpoint state %d, "
 				"halting endpoint...\n",
 				ep->ep.name, ep->state);
 			set_protocol_stall(udc, ep);
@@ -1532,7 +1529,7 @@ restart:
 		pkt_len = USBA_BFEXT(BYTE_COUNT, usba_ep_readl(ep, STA));
 		DBG(DBG_HW, "Packet length: %u\n", pkt_len);
 		if (pkt_len != sizeof(crq)) {
-			printk(KERN_WARNING "udc: Invalid packet length %u "
+			pr_warning("udc: Invalid packet length %u "
 				"(expected %lu)\n", pkt_len, sizeof(crq));
 			set_protocol_stall(udc, ep);
 			return;

drivers/usb/gadget/atmel_usba_udc.h

@@ -216,7 +216,6 @@
 #define FIFO_IOMEM_ID	0
 #define CTRL_IOMEM_ID	1
 
-#ifdef DEBUG
 #define DBG_ERR		0x0001	/* report all error returns */
 #define DBG_HW		0x0002	/* debug hardware initialization */
 #define DBG_GADGET	0x0004	/* calls to/from gadget driver */
@@ -230,14 +229,12 @@
 #define DBG_NONE	0x0000
 
 #define DEBUG_LEVEL	(DBG_ERR)
+
 #define DBG(level, fmt, ...)					\
 	do {							\
 		if ((level) & DEBUG_LEVEL)			\
-			printk(KERN_DEBUG "udc: " fmt, ## __VA_ARGS__);	\
+			pr_debug("udc: " fmt, ## __VA_ARGS__);	\
 	} while (0)
-#else
-#define DBG(level, fmt...)
-#endif
 
 enum usba_ctrl_state {
 	WAIT_FOR_SETUP,

drivers/usb/gadget/dummy_hcd.c

@@ -61,6 +61,8 @@
 #define DRIVER_DESC	"USB Host+Gadget Emulator"
 #define DRIVER_VERSION	"02 May 2005"
 
+#define POWER_BUDGET	500	/* in mA; use 8 for low-power port testing */
+
 static const char	driver_name [] = "dummy_hcd";
 static const char	driver_desc [] = "USB Host+Gadget Emulator";
 
@@ -772,18 +774,17 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
 	list_del_init (&dum->ep [0].ep.ep_list);
 	INIT_LIST_HEAD(&dum->fifo_req.queue);
 
+	driver->driver.bus = NULL;
 	dum->driver = driver;
 	dum->gadget.dev.driver = &driver->driver;
 	dev_dbg (udc_dev(dum), "binding gadget driver '%s'\n",
 			driver->driver.name);
-	if ((retval = driver->bind (&dum->gadget)) != 0)
-		goto err_bind_gadget;
-
-	driver->driver.bus = dum->gadget.dev.parent->bus;
-	if ((retval = driver_register (&driver->driver)) != 0)
-		goto err_register;
-	if ((retval = device_bind_driver (&dum->gadget.dev)) != 0)
-		goto err_bind_driver;
+	retval = driver->bind(&dum->gadget);
+	if (retval) {
+		dum->driver = NULL;
+		dum->gadget.dev.driver = NULL;
+		return retval;
+	}
 
 	/* khubd will enumerate this in a while */
 	spin_lock_irq (&dum->lock);
@@ -793,20 +794,6 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
 
 	usb_hcd_poll_rh_status (dummy_to_hcd (dum));
 	return 0;
-
-err_bind_driver:
-	driver_unregister (&driver->driver);
-err_register:
-	if (driver->unbind)
-		driver->unbind (&dum->gadget);
-	spin_lock_irq (&dum->lock);
-	dum->pullup = 0;
-	set_link_state (dum);
-	spin_unlock_irq (&dum->lock);
-err_bind_gadget:
-	dum->driver = NULL;
-	dum->gadget.dev.driver = NULL;
-	return retval;
 }
 EXPORT_SYMBOL (usb_gadget_register_driver);
 
@@ -830,11 +817,9 @@ usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 	spin_unlock_irqrestore (&dum->lock, flags);
 
 	driver->unbind (&dum->gadget);
+	dum->gadget.dev.driver = NULL;
 	dum->driver = NULL;
 
-	device_release_driver (&dum->gadget.dev);
-	driver_unregister (&driver->driver);
-
 	spin_lock_irqsave (&dum->lock, flags);
 	dum->pullup = 0;
 	set_link_state (dum);
@@ -1827,8 +1812,7 @@ static int dummy_start (struct usb_hcd *hcd)
 
 	INIT_LIST_HEAD (&dum->urbp_list);
 
-	/* only show a low-power port: just 8mA */
-	hcd->power_budget = 8;
+	hcd->power_budget = POWER_BUDGET;
 	hcd->state = HC_STATE_RUNNING;
 	hcd->uses_new_polling = 1;
 

drivers/usb/gadget/ether.c

@@ -1067,19 +1067,19 @@ done:
 
 	/* on error, disable any endpoints  */
 	if (result < 0) {
-		if (!subset_active(dev))
+		if (!subset_active(dev) && dev->status_ep)
 			(void) usb_ep_disable (dev->status_ep);
 		dev->status = NULL;
 		(void) usb_ep_disable (dev->in_ep);
 		(void) usb_ep_disable (dev->out_ep);
 		dev->in = NULL;
 		dev->out = NULL;
-	} else
+	}
 
 	/* activate non-CDC configs right away
 	 * this isn't strictly according to the RNDIS spec
 	 */
-	if (!cdc_active (dev)) {
+	else if (!cdc_active (dev)) {
 		netif_carrier_on (dev->net);
 		if (netif_running (dev->net)) {
 			spin_unlock (&dev->lock);

drivers/usb/gadget/file_storage.c

@@ -275,19 +275,15 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 /*-------------------------------------------------------------------------*/
 
-#ifdef DEBUG
 #define LDBG(lun,fmt,args...) \
 	dev_dbg(&(lun)->dev , fmt , ## args)
 #define MDBG(fmt,args...) \
-	printk(KERN_DEBUG DRIVER_NAME ": " fmt , ## args)
-#else
-#define LDBG(lun,fmt,args...) \
-	do { } while (0)
-#define MDBG(fmt,args...) \
-	do { } while (0)
+	pr_debug(DRIVER_NAME ": " fmt , ## args)
+
+#ifndef DEBUG
 #undef VERBOSE_DEBUG
 #undef DUMP_MSGS
-#endif /* DEBUG */
+#endif /* !DEBUG */
 
 #ifdef VERBOSE_DEBUG
 #define VLDBG	LDBG
@@ -304,7 +300,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 	dev_info(&(lun)->dev , fmt , ## args)
 
 #define MINFO(fmt,args...) \
-	printk(KERN_INFO DRIVER_NAME ": " fmt , ## args)
+	pr_info(DRIVER_NAME ": " fmt , ## args)
 
 #define DBG(d, fmt, args...) \
 	dev_dbg(&(d)->gadget->dev , fmt , ## args)

drivers/usb/gadget/fsl_usb2_udc.c

@@ -776,7 +776,7 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 		VDBG("%s, bad params\n", __FUNCTION__);
 		return -EINVAL;
 	}
-	if (!_ep || (!ep->desc && ep_index(ep))) {
+	if (unlikely(!_ep || !ep->desc)) {
 		VDBG("%s, bad ep\n", __FUNCTION__);
 		return -EINVAL;
 	}
@@ -1896,7 +1896,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count,
 
 	spin_lock_irqsave(&udc->lock, flags);
 
-	/* ------basic driver infomation ---- */
+	/* ------basic driver information ---- */
 	t = scnprintf(next, size,
 			DRIVER_DESC "\n"
 			"%s version: %s\n"

drivers/usb/gadget/fsl_usb2_udc.h

@@ -551,9 +551,9 @@ static void dump_msg(const char *label, const u8 * buf, unsigned int length)
 #define VDBG(stuff...)	do{}while(0)
 #endif
 
-#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
-#define WARN(stuff...)		printk(KERN_WARNING "udc: " stuff)
-#define INFO(stuff...)		printk(KERN_INFO "udc: " stuff)
+#define ERR(stuff...)		pr_err("udc: " stuff)
+#define WARN(stuff...)		pr_warning("udc: " stuff)
+#define INFO(stuff...)		pr_info("udc: " stuff)
 
 /*-------------------------------------------------------------------------*/
 

drivers/usb/gadget/gmidi.c

@@ -1158,7 +1158,7 @@ static int __devinit gmidi_bind(struct usb_gadget *gadget)
 	/* support optional vendor/distro customization */
 	if (idVendor) {
 		if (!idProduct) {
-			printk(KERN_ERR "idVendor needs idProduct!\n");
+			pr_err("idVendor needs idProduct!\n");
 			return -ENODEV;
 		}
 		device_desc.idVendor = cpu_to_le16(idVendor);
@@ -1190,7 +1190,7 @@ static int __devinit gmidi_bind(struct usb_gadget *gadget)
 	in_ep = usb_ep_autoconfig(gadget, &bulk_in_desc);
 	if (!in_ep) {
 autoconf_fail:
-		printk(KERN_ERR "%s: can't autoconfigure on %s\n",
+		pr_err("%s: can't autoconfigure on %s\n",
 			shortname, gadget->name);
 		return -ENODEV;
 	}
@@ -1212,7 +1212,7 @@ autoconf_fail:
 		 * it SHOULD NOT have problems with bulk-capable hardware.
 		 * so warn about unrecognized controllers, don't panic.
 		 */
-		printk(KERN_WARNING "%s: controller '%s' not recognized\n",
+		pr_warning("%s: controller '%s' not recognized\n",
 			shortname, gadget->name);
 		device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
 	}

drivers/usb/gadget/goku_udc.c

@@ -1422,6 +1422,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	driver->unbind(&dev->gadget);
+	dev->gadget.dev.driver = NULL;
 
 	DBG(dev, "unregistered driver '%s'\n", driver->driver.name);
 	return 0;

drivers/usb/gadget/inode.c

@@ -1699,7 +1699,7 @@ gadgetfs_bind (struct usb_gadget *gadget)
 	if (!dev)
 		return -ESRCH;
 	if (0 != strcmp (CHIP, gadget->name)) {
-		printk (KERN_ERR "%s expected %s controller not %s\n",
+		pr_err("%s expected %s controller not %s\n",
 			shortname, CHIP, gadget->name);
 		return -ENODEV;
 	}

drivers/usb/gadget/lh7a40x_udc.c

@@ -474,6 +474,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	driver->unbind(&dev->gadget);
+	dev->gadget.dev.driver = NULL;
 	device_del(&dev->gadget.dev);
 
 	udc_disable(dev);

drivers/usb/gadget/m66592-udc.c

@@ -36,9 +36,14 @@ MODULE_DESCRIPTION("M66592 USB gadget driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yoshihiro Shimoda");
 
-#define DRIVER_VERSION	"29 May 2007"
+#define DRIVER_VERSION	"18 Oct 2007"
 
 /* module parameters */
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+static unsigned short endian = M66592_LITTLE;
+module_param(endian, ushort, 0644);
+MODULE_PARM_DESC(endian, "data endian: big=0, little=0 (default=0)");
+#else
 static unsigned short clock = M66592_XTAL24;
 module_param(clock, ushort, 0644);
 MODULE_PARM_DESC(clock, "input clock: 48MHz=32768, 24MHz=16384, 12MHz=0 "
@@ -56,6 +61,7 @@ static unsigned short irq_sense = M66592_INTL;
 module_param(irq_sense, ushort, 0644);
 MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=2, falling edge=0 "
 		"(default=2)");
+#endif
 
 static const char udc_name[] = "m66592_udc";
 static const char *m66592_ep_name[] = {
@@ -141,7 +147,7 @@ static inline u16 control_reg_get_pid(struct m66592 *m66592, u16 pipenum)
 		offset = get_pipectr_addr(pipenum);
 		pid = m66592_read(m66592, offset) & M66592_PID;
 	} else
-		printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+		pr_err("unexpect pipe num (%d)\n", pipenum);
 
 	return pid;
 }
@@ -157,7 +163,7 @@ static inline void control_reg_set_pid(struct m66592 *m66592, u16 pipenum,
 		offset = get_pipectr_addr(pipenum);
 		m66592_mdfy(m66592, pid, M66592_PID, offset);
 	} else
-		printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+		pr_err("unexpect pipe num (%d)\n", pipenum);
 }
 
 static inline void pipe_start(struct m66592 *m66592, u16 pipenum)
@@ -186,7 +192,7 @@ static inline u16 control_reg_get(struct m66592 *m66592, u16 pipenum)
 		offset = get_pipectr_addr(pipenum);
 		ret = m66592_read(m66592, offset);
 	} else
-		printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
+		pr_err("unexpect pipe num (%d)\n", pipenum);
 
 	return ret;
 }
@@ -203,7 +209,7 @@ static inline void control_reg_sqclr(struct m66592 *m66592, u16 pipenum)
 		offset = get_pipectr_addr(pipenum);
 		m66592_bset(m66592, M66592_SQCLR, offset);
 	} else
-		printk(KERN_ERR "unexpect pipe num(%d)\n", pipenum);
+		pr_err("unexpect pipe num(%d)\n", pipenum);
 }
 
 static inline int get_buffer_size(struct m66592 *m66592, u16 pipenum)
@@ -285,7 +291,7 @@ static int pipe_buffer_setting(struct m66592 *m66592,
 		break;
 	}
 	if (m66592->bi_bufnum > M66592_MAX_BUFNUM) {
-		printk(KERN_ERR "m66592 pipe memory is insufficient(%d)\n",
+		pr_err("m66592 pipe memory is insufficient(%d)\n",
 				m66592->bi_bufnum);
 		return -ENOMEM;
 	}
@@ -326,7 +332,7 @@ static void pipe_buffer_release(struct m66592 *m66592,
 		if (info->type == M66592_BULK)
 			m66592->bulk--;
 	} else
-		printk(KERN_ERR "ep_release: unexpect pipenum (%d)\n",
+		pr_err("ep_release: unexpect pipenum (%d)\n",
 				info->pipe);
 }
 
@@ -360,6 +366,7 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
 			ep->fifosel = M66592_D0FIFOSEL;
 			ep->fifoctr = M66592_D0FIFOCTR;
 			ep->fifotrn = M66592_D0FIFOTRN;
+#if !defined(CONFIG_SUPERH_BUILT_IN_M66592)
 		} else if (m66592->num_dma == 1) {
 			m66592->num_dma++;
 			ep->use_dma = 1;
@@ -367,6 +374,7 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
 			ep->fifosel = M66592_D1FIFOSEL;
 			ep->fifoctr = M66592_D1FIFOCTR;
 			ep->fifotrn = M66592_D1FIFOTRN;
+#endif
 		} else {
 			ep->use_dma = 0;
 			ep->fifoaddr = M66592_CFIFO;
@@ -422,7 +430,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 	case USB_ENDPOINT_XFER_BULK:
 		if (m66592->bulk >= M66592_MAX_NUM_BULK) {
 			if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
-				printk(KERN_ERR "bulk pipe is insufficient\n");
+				pr_err("bulk pipe is insufficient\n");
 				return -ENODEV;
 			} else {
 				info.pipe = M66592_BASE_PIPENUM_ISOC
@@ -438,7 +446,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 		break;
 	case USB_ENDPOINT_XFER_INT:
 		if (m66592->interrupt >= M66592_MAX_NUM_INT) {
-			printk(KERN_ERR "interrupt pipe is insufficient\n");
+			pr_err("interrupt pipe is insufficient\n");
 			return -ENODEV;
 		}
 		info.pipe = M66592_BASE_PIPENUM_INT + m66592->interrupt;
@@ -447,7 +455,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 		break;
 	case USB_ENDPOINT_XFER_ISOC:
 		if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
-			printk(KERN_ERR "isochronous pipe is insufficient\n");
+			pr_err("isochronous pipe is insufficient\n");
 			return -ENODEV;
 		}
 		info.pipe = M66592_BASE_PIPENUM_ISOC + m66592->isochronous;
@@ -455,7 +463,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 		counter = &m66592->isochronous;
 		break;
 	default:
-		printk(KERN_ERR "unexpect xfer type\n");
+		pr_err("unexpect xfer type\n");
 		return -EINVAL;
 	}
 	ep->type = info.type;
@@ -470,7 +478,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 
 	ret = pipe_buffer_setting(m66592, &info);
 	if (ret < 0) {
-		printk(KERN_ERR "pipe_buffer_setting fail\n");
+		pr_err("pipe_buffer_setting fail\n");
 		return ret;
 	}
 
@@ -606,11 +614,33 @@ static void start_ep0(struct m66592_ep *ep, struct m66592_request *req)
 		control_end(ep->m66592, 0);
 		break;
 	default:
-		printk(KERN_ERR "start_ep0: unexpect ctsq(%x)\n", ctsq);
+		pr_err("start_ep0: unexpect ctsq(%x)\n", ctsq);
 		break;
 	}
 }
 
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+static void init_controller(struct m66592 *m66592)
+{
+	usbf_start_clock();
+	m66592_bset(m66592, M66592_HSE, M66592_SYSCFG);		/* High spd */
+	m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
+	m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
+	m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
+
+	/* This is a workaound for SH7722 2nd cut */
+	m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
+	m66592_bset(m66592, 0x1000, M66592_TESTMODE);
+	m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
+
+	m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
+
+	m66592_write(m66592, 0, M66592_CFBCFG);
+	m66592_write(m66592, 0, M66592_D0FBCFG);
+	m66592_bset(m66592, endian, M66592_CFBCFG);
+	m66592_bset(m66592, endian, M66592_D0FBCFG);
+}
+#else	/* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
 static void init_controller(struct m66592 *m66592)
 {
 	m66592_bset(m66592, (vif & M66592_LDRV) | (endian & M66592_BIGEND),
@@ -636,9 +666,13 @@ static void init_controller(struct m66592 *m66592)
 	m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
 			M66592_DMA0CFG);
 }
+#endif	/* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
 
 static void disable_controller(struct m66592 *m66592)
 {
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+	usbf_stop_clock();
+#else
 	m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
 	udelay(1);
 	m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
@@ -646,15 +680,20 @@ static void disable_controller(struct m66592 *m66592)
 	m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
 	udelay(1);
 	m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
+#endif
 }
 
 static void m66592_start_xclock(struct m66592 *m66592)
 {
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+	usbf_start_clock();
+#else
 	u16 tmp;
 
 	tmp = m66592_read(m66592, M66592_SYSCFG);
 	if (!(tmp & M66592_XCKE))
 		m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
+#endif
 }
 
 /*-------------------------------------------------------------------------*/
@@ -709,7 +748,7 @@ static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req)
 	do {
 		tmp = m66592_read(m66592, ep->fifoctr);
 		if (i++ > 100000) {
-			printk(KERN_ERR "pipe0 is busy. maybe cpu i/o bus"
+			pr_err("pipe0 is busy. maybe cpu i/o bus "
 				"conflict. please power off this controller.");
 			return;
 		}
@@ -759,7 +798,7 @@ static void irq_packet_write(struct m66592_ep *ep, struct m66592_request *req)
 	if (unlikely((tmp & M66592_FRDY) == 0)) {
 		pipe_stop(m66592, pipenum);
 		pipe_irq_disable(m66592, pipenum);
-		printk(KERN_ERR "write fifo not ready. pipnum=%d\n", pipenum);
+		pr_err("write fifo not ready. pipnum=%d\n", pipenum);
 		return;
 	}
 
@@ -808,7 +847,7 @@ static void irq_packet_read(struct m66592_ep *ep, struct m66592_request *req)
 		req->req.status = -EPIPE;
 		pipe_stop(m66592, pipenum);
 		pipe_irq_disable(m66592, pipenum);
-		printk(KERN_ERR "read fifo not ready");
+		pr_err("read fifo not ready");
 		return;
 	}
 
@@ -1063,7 +1102,7 @@ static void m66592_update_usb_speed(struct m66592 *m66592)
 		break;
 	default:
 		m66592->gadget.speed = USB_SPEED_UNKNOWN;
-		printk(KERN_ERR "USB speed unknown\n");
+		pr_err("USB speed unknown\n");
 	}
 }
 
@@ -1122,7 +1161,7 @@ __acquires(m66592->lock)
 		control_end(m66592, 0);
 		break;
 	default:
-		printk(KERN_ERR "ctrl_stage: unexpect ctsq(%x)\n", ctsq);
+		pr_err("ctrl_stage: unexpect ctsq(%x)\n", ctsq);
 		break;
 	}
 }
@@ -1142,6 +1181,19 @@ static irqreturn_t m66592_irq(int irq, void *_m66592)
 	intsts0 = m66592_read(m66592, M66592_INTSTS0);
 	intenb0 = m66592_read(m66592, M66592_INTENB0);
 
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+	if (!intsts0 && !intenb0) {
+		/*
+		 * When USB clock stops, it cannot read register. Even if a
+		 * clock stops, the interrupt occurs. So this driver turn on
+		 * a clock by this timing and do re-reading of register.
+		 */
+		m66592_start_xclock(m66592);
+		intsts0 = m66592_read(m66592, M66592_INTSTS0);
+		intenb0 = m66592_read(m66592, M66592_INTENB0);
+	}
+#endif
+
 	savepipe = m66592_read(m66592, M66592_CFIFOSEL);
 
 	mask0 = intsts0 & intenb0;
@@ -1409,13 +1461,13 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
 
 	retval = device_add(&m66592->gadget.dev);
 	if (retval) {
-		printk(KERN_ERR "device_add error (%d)\n", retval);
+		pr_err("device_add error (%d)\n", retval);
 		goto error;
 	}
 
 	retval = driver->bind (&m66592->gadget);
 	if (retval) {
-		printk(KERN_ERR "bind to driver error (%d)\n", retval);
+		pr_err("bind to driver error (%d)\n", retval);
 		device_del(&m66592->gadget.dev);
 		goto error;
 	}
@@ -1456,6 +1508,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	m66592_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0);
 
 	driver->unbind(&m66592->gadget);
+	m66592->gadget.dev.driver = NULL;
 
 	init_controller(m66592);
 	disable_controller(m66592);
@@ -1485,6 +1538,7 @@ static int __exit m66592_remove(struct platform_device *pdev)
 	iounmap(m66592->reg);
 	free_irq(platform_get_irq(pdev, 0), m66592);
 	m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
+	usbf_stop_clock();
 	kfree(m66592);
 	return 0;
 }
@@ -1508,28 +1562,28 @@ static int __init m66592_probe(struct platform_device *pdev)
 			(char *)udc_name);
 	if (!res) {
 		ret = -ENODEV;
-		printk(KERN_ERR "platform_get_resource_byname error.\n");
+		pr_err("platform_get_resource_byname error.\n");
 		goto clean_up;
 	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		ret = -ENODEV;
-		printk(KERN_ERR "platform_get_irq error.\n");
+		pr_err("platform_get_irq error.\n");
 		goto clean_up;
 	}
 
 	reg = ioremap(res->start, resource_len(res));
 	if (reg == NULL) {
 		ret = -ENOMEM;
-		printk(KERN_ERR "ioremap error.\n");
+		pr_err("ioremap error.\n");
 		goto clean_up;
 	}
 
 	/* initialize ucd */
 	m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL);
 	if (m66592 == NULL) {
-		printk(KERN_ERR "kzalloc error\n");
+		pr_err("kzalloc error\n");
 		goto clean_up;
 	}
 
@@ -1555,7 +1609,7 @@ static int __init m66592_probe(struct platform_device *pdev)
 	ret = request_irq(irq, m66592_irq, IRQF_DISABLED | IRQF_SHARED,
 			udc_name, m66592);
 	if (ret < 0) {
-		printk(KERN_ERR "request_irq error (%d)\n", ret);
+		pr_err("request_irq error (%d)\n", ret);
 		goto clean_up;
 	}
 

drivers/usb/gadget/m66592-udc.h

@@ -72,6 +72,11 @@
 #define   M66592_P_TST_J	 0x0001		/* PERI TEST J */
 #define   M66592_P_TST_NORMAL	 0x0000		/* PERI Normal Mode */
 
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+#define M66592_CFBCFG		0x0A
+#define M66592_D0FBCFG		0x0C
+#define M66592_LITTLE		0x0100	/* b8: Little endian mode */
+#else
 #define M66592_PINCFG		0x0A
 #define M66592_LDRV		0x8000	/* b15: Drive Current Adjust */
 #define M66592_BIGEND		0x0100	/* b8: Big endian mode */
@@ -91,6 +96,7 @@
 #define M66592_PKTM		0x0020	/* b5: Packet mode */
 #define M66592_DENDE		0x0010	/* b4: Dend enable */
 #define M66592_OBUS		0x0004	/* b2: OUTbus mode */
+#endif	/* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
 
 #define M66592_CFIFO		0x10
 #define M66592_D0FIFO		0x14
@@ -103,9 +109,13 @@
 #define M66592_REW		0x4000	/* b14: Buffer rewind */
 #define M66592_DCLRM		0x2000	/* b13: DMA buffer clear mode */
 #define M66592_DREQE		0x1000	/* b12: DREQ output enable */
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+#define M66592_MBW		0x0800	/* b11: Maximum bit width for FIFO */
+#else
 #define M66592_MBW		0x0400	/* b10: Maximum bit width for FIFO */
 #define   M66592_MBW_8		 0x0000   /*  8bit */
 #define   M66592_MBW_16		 0x0400   /* 16bit */
+#endif	/* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
 #define M66592_TRENB		0x0200	/* b9: Transaction counter enable */
 #define M66592_TRCLR		0x0100	/* b8: Transaction counter clear */
 #define M66592_DEZPM		0x0080	/* b7: Zero-length packet mode */
@@ -530,8 +540,13 @@ static inline void m66592_read_fifo(struct m66592 *m66592,
 {
 	unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
 
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+	len = (len + 3) / 4;
+	insl(fifoaddr, buf, len);
+#else
 	len = (len + 1) / 2;
 	insw(fifoaddr, buf, len);
+#endif
 }
 
 static inline void m66592_write(struct m66592 *m66592, u16 val,
@@ -545,6 +560,24 @@ static inline void m66592_write_fifo(struct m66592 *m66592,
 		void *buf, unsigned long len)
 {
 	unsigned long fifoaddr = (unsigned long)m66592->reg + offset;
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+	unsigned long count;
+	unsigned char *pb;
+	int i;
+
+	count = len / 4;
+	outsl(fifoaddr, buf, count);
+
+	if (len & 0x00000003) {
+		pb = buf + count * 4;
+		for (i = 0; i < (len & 0x00000003); i++) {
+			if (m66592_read(m66592, M66592_CFBCFG))	/* little */
+				outb(pb[i], fifoaddr + (3 - i));
+			else
+				outb(pb[i], fifoaddr + i);
+		}
+	}
+#else
 	unsigned long odd = len & 0x0001;
 
 	len = len / 2;
@@ -553,6 +586,7 @@ static inline void m66592_write_fifo(struct m66592 *m66592,
 		unsigned char *p = buf + len*2;
 		outb(*p, fifoaddr);
 	}
+#endif	/* #if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
 }
 
 static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,
@@ -570,6 +604,26 @@ static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,
 #define m66592_bset(m66592, val, offset)	\
 			m66592_mdfy(m66592, val, 0, offset)
 
+#if defined(CONFIG_SUPERH_BUILT_IN_M66592)
+#include <asm/io.h>
+#define MSTPCR2		0xA4150038	/* for SH7722 */
+#define MSTPCR2_USB	0x00000800
+
+static inline void usbf_start_clock(void)
+{
+	ctrl_outl(ctrl_inl(MSTPCR2) & ~MSTPCR2_USB, MSTPCR2);
+}
+
+static inline void usbf_stop_clock(void)
+{
+	ctrl_outl(ctrl_inl(MSTPCR2) | MSTPCR2_USB, MSTPCR2);
+}
+
+#else
+#define usbf_start_clock(x)
+#define usbf_stop_clock(x)
+#endif	/* if defined(CONFIG_SUPERH_BUILT_IN_M66592) */
+
 #endif	/* ifndef __M66592_UDC_H__ */
 
 

drivers/usb/gadget/net2280.c

@@ -2435,7 +2435,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 			break;
 		default:
 delegate:
-			VDEBUG (dev, "setup %02x.%02x v%04x i%04x l%04x"
+			VDEBUG (dev, "setup %02x.%02x v%04x i%04x l%04x "
 				"ep_cfg %08x\n",
 				u.r.bRequestType, u.r.bRequest,
 				w_value, w_index, w_length,

drivers/usb/gadget/omap_udc.c

@@ -4,6 +4,8 @@
  * Copyright (C) 2004 Texas Instruments, Inc.
  * Copyright (C) 2004-2005 David Brownell
  *
+ * OMAP2 & DMA support by Kyungmin Park <kyungmin.park@samsung.com>
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -60,11 +62,6 @@
 /* bulk DMA seems to be behaving for both IN and OUT */
 #define	USE_DMA
 
-/* FIXME: OMAP2 currently has some problem in DMA mode */
-#ifdef CONFIG_ARCH_OMAP2
-#undef USE_DMA
-#endif
-
 /* ISO too */
 #define	USE_ISO
 
@@ -73,6 +70,8 @@
 
 #define	DMA_ADDR_INVALID	(~(dma_addr_t)0)
 
+#define OMAP2_DMA_CH(ch)	(((ch) - 1) << 1)
+#define OMAP24XX_DMA(name, ch)	(OMAP24XX_DMA_##name + OMAP2_DMA_CH(ch))
 
 /*
  * The OMAP UDC needs _very_ early endpoint setup:  before enabling the
@@ -571,20 +570,25 @@ static void next_in_dma(struct omap_ep *ep, struct omap_req *req)
 	const int	sync_mode = cpu_is_omap15xx()
 				? OMAP_DMA_SYNC_FRAME
 				: OMAP_DMA_SYNC_ELEMENT;
+	int		dma_trigger = 0;
+
+	if (cpu_is_omap24xx())
+		dma_trigger = OMAP24XX_DMA(USB_W2FC_TX0, ep->dma_channel);
 
 	/* measure length in either bytes or packets */
 	if ((cpu_is_omap16xx() && length <= UDC_TXN_TSC)
+			|| (cpu_is_omap24xx() && length < ep->maxpacket)
 			|| (cpu_is_omap15xx() && length < ep->maxpacket)) {
 		txdma_ctrl = UDC_TXN_EOT | length;
 		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S8,
-				length, 1, sync_mode, 0, 0);
+				length, 1, sync_mode, dma_trigger, 0);
 	} else {
 		length = min(length / ep->maxpacket,
 				(unsigned) UDC_TXN_TSC + 1);
 		txdma_ctrl = length;
 		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16,
 				ep->ep.maxpacket >> 1, length, sync_mode,
-				0, 0);
+				dma_trigger, 0);
 		length *= ep->maxpacket;
 	}
 	omap_set_dma_src_params(ep->lch, OMAP_DMA_PORT_EMIFF,
@@ -622,20 +626,31 @@ static void finish_in_dma(struct omap_ep *ep, struct omap_req *req, int status)
 
 static void next_out_dma(struct omap_ep *ep, struct omap_req *req)
 {
-	unsigned packets;
+	unsigned packets = req->req.length - req->req.actual;
+	int dma_trigger = 0;
+
+	if (cpu_is_omap24xx())
+		dma_trigger = OMAP24XX_DMA(USB_W2FC_RX0, ep->dma_channel);
 
 	/* NOTE:  we filtered out "short reads" before, so we know
 	 * the buffer has only whole numbers of packets.
+	 * except MODE SELECT(6) sent the 24 bytes data in OMAP24XX DMA mode
 	 */
-
-	/* set up this DMA transfer, enable the fifo, start */
-	packets = (req->req.length - req->req.actual) / ep->ep.maxpacket;
-	packets = min(packets, (unsigned)UDC_RXN_TC + 1);
-	req->dma_bytes = packets * ep->ep.maxpacket;
-	omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16,
-			ep->ep.maxpacket >> 1, packets,
-			OMAP_DMA_SYNC_ELEMENT,
-			0, 0);
+	if (cpu_is_omap24xx() && packets < ep->maxpacket) {
+		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S8,
+				packets, 1, OMAP_DMA_SYNC_ELEMENT,
+				dma_trigger, 0);
+		req->dma_bytes = packets;
+	} else {
+		/* set up this DMA transfer, enable the fifo, start */
+		packets /= ep->ep.maxpacket;
+		packets = min(packets, (unsigned)UDC_RXN_TC + 1);
+		req->dma_bytes = packets * ep->ep.maxpacket;
+		omap_set_dma_transfer_params(ep->lch, OMAP_DMA_DATA_TYPE_S16,
+				ep->ep.maxpacket >> 1, packets,
+				OMAP_DMA_SYNC_ELEMENT,
+				dma_trigger, 0);
+	}
 	omap_set_dma_dest_params(ep->lch, OMAP_DMA_PORT_EMIFF,
 		OMAP_DMA_AMODE_POST_INC, req->req.dma + req->req.actual,
 		0, 0);
@@ -743,6 +758,7 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
 {
 	u16	reg;
 	int	status, restart, is_in;
+	int	dma_channel;
 
 	is_in = ep->bEndpointAddress & USB_DIR_IN;
 	if (is_in)
@@ -769,11 +785,15 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
 	ep->dma_channel = channel;
 
 	if (is_in) {
-		status = omap_request_dma(OMAP_DMA_USB_W2FC_TX0 - 1 + channel,
+		if (cpu_is_omap24xx())
+			dma_channel = OMAP24XX_DMA(USB_W2FC_TX0, channel);
+		else
+			dma_channel = OMAP_DMA_USB_W2FC_TX0 - 1 + channel;
+		status = omap_request_dma(dma_channel,
 			ep->ep.name, dma_error, ep, &ep->lch);
 		if (status == 0) {
 			UDC_TXDMA_CFG_REG = reg;
-			/* EMIFF */
+			/* EMIFF or SDRC */
 			omap_set_dma_src_burst_mode(ep->lch,
 						OMAP_DMA_DATA_BURST_4);
 			omap_set_dma_src_data_pack(ep->lch, 1);
@@ -785,7 +805,12 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
 				0, 0);
 		}
 	} else {
-		status = omap_request_dma(OMAP_DMA_USB_W2FC_RX0 - 1 + channel,
+		if (cpu_is_omap24xx())
+			dma_channel = OMAP24XX_DMA(USB_W2FC_RX0, channel);
+		else
+			dma_channel = OMAP_DMA_USB_W2FC_RX0 - 1 + channel;
+
+		status = omap_request_dma(dma_channel,
 			ep->ep.name, dma_error, ep, &ep->lch);
 		if (status == 0) {
 			UDC_RXDMA_CFG_REG = reg;
@@ -795,7 +820,7 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
 				OMAP_DMA_AMODE_CONSTANT,
 				(unsigned long) io_v2p((u32)&UDC_DATA_DMA_REG),
 				0, 0);
-			/* EMIFF */
+			/* EMIFF or SDRC */
 			omap_set_dma_dest_burst_mode(ep->lch,
 						OMAP_DMA_DATA_BURST_4);
 			omap_set_dma_dest_data_pack(ep->lch, 1);
@@ -808,7 +833,7 @@ static void dma_channel_claim(struct omap_ep *ep, unsigned channel)
 		omap_disable_dma_irq(ep->lch, OMAP_DMA_BLOCK_IRQ);
 
 		/* channel type P: hw synch (fifo) */
-		if (!cpu_is_omap15xx())
+		if (cpu_class_is_omap1() && !cpu_is_omap15xx())
 			OMAP1_DMA_LCH_CTRL_REG(ep->lch) = 2;
 	}
 
@@ -926,11 +951,13 @@ omap_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 
 	/* this isn't bogus, but OMAP DMA isn't the only hardware to
 	 * have a hard time with partial packet reads...  reject it.
+	 * Except OMAP2 can handle the small packets.
 	 */
 	if (use_dma
 			&& ep->has_dma
 			&& ep->bEndpointAddress != 0
 			&& (ep->bEndpointAddress & USB_DIR_IN) == 0
+			&& !cpu_class_is_omap2()
 			&& (req->req.length % ep->ep.maxpacket) != 0) {
 		DBG("%s, no partial packet OUT reads\n", __FUNCTION__);
 		return -EMSGSIZE;
@@ -1001,7 +1028,7 @@ omap_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 
 				/* STATUS for zero length DATA stages is
 				 * always an IN ... even for IN transfers,
-				 * a wierd case which seem to stall OMAP.
+				 * a weird case which seem to stall OMAP.
 				 */
 				UDC_EP_NUM_REG = (UDC_EP_SEL|UDC_EP_DIR);
 				UDC_CTRL_REG = UDC_CLR_EP;

drivers/usb/gadget/omap_udc.h

@@ -182,21 +182,16 @@ struct omap_udc {
 
 /*-------------------------------------------------------------------------*/
 
-#ifdef DEBUG
-#define DBG(stuff...)		printk(KERN_DEBUG "udc: " stuff)
-#else
-#define DBG(stuff...)		do{}while(0)
-#endif
-
 #ifdef VERBOSE
 #    define VDBG		DBG
 #else
 #    define VDBG(stuff...)	do{}while(0)
 #endif
 
-#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
-#define WARN(stuff...)		printk(KERN_WARNING "udc: " stuff)
-#define INFO(stuff...)		printk(KERN_INFO "udc: " stuff)
+#define ERR(stuff...)		pr_err("udc: " stuff)
+#define WARN(stuff...)		pr_warning("udc: " stuff)
+#define INFO(stuff...)		pr_info("udc: " stuff)
+#define DBG(stuff...)		pr_debug("udc: " stuff)
 
 /*-------------------------------------------------------------------------*/
 

drivers/usb/gadget/printer.c

@@ -0,0 +1,1592 @@
+/*
+ * printer.c -- Printer gadget driver
+ *
+ * Copyright (C) 2003-2005 David Brownell
+ * Copyright (C) 2006 Craig W. Nadler
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/utsname.h>
+#include <linux/device.h>
+#include <linux/moduleparam.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <linux/types.h>
+#include <linux/ctype.h>
+#include <linux/cdev.h>
+
+#include <asm/byteorder.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <asm/system.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/g_printer.h>
+
+#include "gadget_chips.h"
+
+#define DRIVER_DESC		"Printer Gadget"
+#define DRIVER_VERSION		"2007 OCT 06"
+
+static const char shortname [] = "printer";
+static const char driver_desc [] = DRIVER_DESC;
+
+static dev_t g_printer_devno;
+
+static struct class *usb_gadget_class;
+
+/*-------------------------------------------------------------------------*/
+
+struct printer_dev {
+	spinlock_t		lock;		/* lock this structure */
+	/* lock buffer lists during read/write calls */
+	spinlock_t		lock_printer_io;
+	struct usb_gadget	*gadget;
+	struct usb_request	*req;		/* for control responses */
+	u8			config;
+	s8			interface;
+	struct usb_ep		*in_ep, *out_ep;
+	const struct usb_endpoint_descriptor
+				*in, *out;
+	struct list_head	rx_reqs;	/* List of free RX structs */
+	struct list_head	rx_reqs_active;	/* List of Active RX xfers */
+	struct list_head	rx_buffers;	/* List of completed xfers */
+	/* wait until there is data to be read. */
+	wait_queue_head_t	rx_wait;
+	struct list_head	tx_reqs;	/* List of free TX structs */
+	struct list_head	tx_reqs_active; /* List of Active TX xfers */
+	/* Wait until there are write buffers available to use. */
+	wait_queue_head_t	tx_wait;
+	/* Wait until all write buffers have been sent. */
+	wait_queue_head_t	tx_flush_wait;
+	struct usb_request	*current_rx_req;
+	size_t			current_rx_bytes;
+	u8			*current_rx_buf;
+	u8			printer_status;
+	u8			reset_printer;
+	struct class_device	*printer_class_dev;
+	struct cdev		printer_cdev;
+	struct device		*pdev;
+	u8			printer_cdev_open;
+	wait_queue_head_t	wait;
+};
+
+static struct printer_dev usb_printer_gadget;
+
+/*-------------------------------------------------------------------------*/
+
+/* DO NOT REUSE THESE IDs with a protocol-incompatible driver!!  Ever!!
+ * Instead:  allocate your own, using normal USB-IF procedures.
+ */
+
+/* Thanks to NetChip Technologies for donating this product ID.
+ */
+#define PRINTER_VENDOR_NUM	0x0525		/* NetChip */
+#define PRINTER_PRODUCT_NUM	0xa4a8		/* Linux-USB Printer Gadget */
+
+/* Some systems will want different product identifers published in the
+ * device descriptor, either numbers or strings or both.  These string
+ * parameters are in UTF-8 (superset of ASCII's 7 bit characters).
+ */
+
+static ushort __initdata idVendor;
+module_param(idVendor, ushort, S_IRUGO);
+MODULE_PARM_DESC(idVendor, "USB Vendor ID");
+
+static ushort __initdata idProduct;
+module_param(idProduct, ushort, S_IRUGO);
+MODULE_PARM_DESC(idProduct, "USB Product ID");
+
+static ushort __initdata bcdDevice;
+module_param(bcdDevice, ushort, S_IRUGO);
+MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)");
+
+static char *__initdata iManufacturer;
+module_param(iManufacturer, charp, S_IRUGO);
+MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string");
+
+static char *__initdata iProduct;
+module_param(iProduct, charp, S_IRUGO);
+MODULE_PARM_DESC(iProduct, "USB Product string");
+
+static char *__initdata iSerialNum;
+module_param(iSerialNum, charp, S_IRUGO);
+MODULE_PARM_DESC(iSerialNum, "1");
+
+static char *__initdata iPNPstring;
+module_param(iPNPstring, charp, S_IRUGO);
+MODULE_PARM_DESC(iPNPstring, "MFG:linux;MDL:g_printer;CLS:PRINTER;SN:1;");
+
+/* Number of requests to allocate per endpoint, not used for ep0. */
+static unsigned qlen = 10;
+module_param(qlen, uint, S_IRUGO|S_IWUSR);
+
+#define QLEN	qlen
+
+#ifdef CONFIG_USB_GADGET_DUALSPEED
+#define DEVSPEED	USB_SPEED_HIGH
+#else   /* full speed (low speed doesn't do bulk) */
+#define DEVSPEED        USB_SPEED_FULL
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+#define xprintk(d, level, fmt, args...) \
+	printk(level "%s: " fmt, DRIVER_DESC, ## args)
+
+#ifdef DEBUG
+#define DBG(dev, fmt, args...) \
+	xprintk(dev, KERN_DEBUG, fmt, ## args)
+#else
+#define DBG(dev, fmt, args...) \
+	do { } while (0)
+#endif /* DEBUG */
+
+#ifdef VERBOSE
+#define VDBG(dev, fmt, args...) \
+	xprintk(dev, KERN_DEBUG, fmt, ## args)
+#else
+#define VDBG(dev, fmt, args...) \
+	do { } while (0)
+#endif /* VERBOSE */
+
+#define ERROR(dev, fmt, args...) \
+	xprintk(dev, KERN_ERR, fmt, ## args)
+#define WARN(dev, fmt, args...) \
+	xprintk(dev, KERN_WARNING, fmt, ## args)
+#define INFO(dev, fmt, args...) \
+	xprintk(dev, KERN_INFO, fmt, ## args)
+
+/*-------------------------------------------------------------------------*/
+
+/* USB DRIVER HOOKUP (to the hardware driver, below us), mostly
+ * ep0 implementation:  descriptors, config management, setup().
+ * also optional class-specific notification interrupt transfer.
+ */
+
+/*
+ * DESCRIPTORS ... most are static, but strings and (full) configuration
+ * descriptors are built on demand.
+ */
+
+#define STRING_MANUFACTURER		1
+#define STRING_PRODUCT			2
+#define STRING_SERIALNUM		3
+
+/* holds our biggest descriptor */
+#define USB_DESC_BUFSIZE		256
+#define USB_BUFSIZE			8192
+
+/* This device advertises one configuration. */
+#define DEV_CONFIG_VALUE		1
+#define	PRINTER_INTERFACE		0
+
+static struct usb_device_descriptor device_desc = {
+	.bLength =		sizeof device_desc,
+	.bDescriptorType =	USB_DT_DEVICE,
+	.bcdUSB =		__constant_cpu_to_le16(0x0200),
+	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
+	.bDeviceSubClass =	0,
+	.bDeviceProtocol =	0,
+	.idVendor =		__constant_cpu_to_le16(PRINTER_VENDOR_NUM),
+	.idProduct =		__constant_cpu_to_le16(PRINTER_PRODUCT_NUM),
+	.iManufacturer =	STRING_MANUFACTURER,
+	.iProduct =		STRING_PRODUCT,
+	.iSerialNumber =	STRING_SERIALNUM,
+	.bNumConfigurations =	1
+};
+
+static struct usb_otg_descriptor otg_desc = {
+	.bLength =		sizeof otg_desc,
+	.bDescriptorType =	USB_DT_OTG,
+	.bmAttributes =		USB_OTG_SRP
+};
+
+static struct usb_config_descriptor config_desc = {
+	.bLength =		sizeof config_desc,
+	.bDescriptorType =	USB_DT_CONFIG,
+
+	/* compute wTotalLength on the fly */
+	.bNumInterfaces =	1,
+	.bConfigurationValue =	DEV_CONFIG_VALUE,
+	.iConfiguration =	0,
+	.bmAttributes =		USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+	.bMaxPower =		1	/* Self-Powered */
+};
+
+static struct usb_interface_descriptor intf_desc = {
+	.bLength =		sizeof intf_desc,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	.bInterfaceNumber =	PRINTER_INTERFACE,
+	.bNumEndpoints =	2,
+	.bInterfaceClass =	USB_CLASS_PRINTER,
+	.bInterfaceSubClass =	1,	/* Printer Sub-Class */
+	.bInterfaceProtocol =	2,	/* Bi-Directional */
+	.iInterface =		0
+};
+
+static struct usb_endpoint_descriptor fs_ep_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK
+};
+
+static struct usb_endpoint_descriptor fs_ep_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK
+};
+
+static const struct usb_descriptor_header *fs_printer_function [11] = {
+	(struct usb_descriptor_header *) &otg_desc,
+	(struct usb_descriptor_header *) &intf_desc,
+	(struct usb_descriptor_header *) &fs_ep_in_desc,
+	(struct usb_descriptor_header *) &fs_ep_out_desc,
+	NULL
+};
+
+#ifdef	CONFIG_USB_GADGET_DUALSPEED
+
+/*
+ * usb 2.0 devices need to expose both high speed and full speed
+ * descriptors, unless they only run at full speed.
+ */
+
+static struct usb_endpoint_descriptor hs_ep_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	__constant_cpu_to_le16(512)
+};
+
+static struct usb_endpoint_descriptor hs_ep_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	__constant_cpu_to_le16(512)
+};
+
+static struct usb_qualifier_descriptor dev_qualifier = {
+	.bLength =		sizeof dev_qualifier,
+	.bDescriptorType =	USB_DT_DEVICE_QUALIFIER,
+	.bcdUSB =		__constant_cpu_to_le16(0x0200),
+	.bDeviceClass =		USB_CLASS_PRINTER,
+	.bNumConfigurations =	1
+};
+
+static const struct usb_descriptor_header *hs_printer_function [11] = {
+	(struct usb_descriptor_header *) &otg_desc,
+	(struct usb_descriptor_header *) &intf_desc,
+	(struct usb_descriptor_header *) &hs_ep_in_desc,
+	(struct usb_descriptor_header *) &hs_ep_out_desc,
+	NULL
+};
+
+/* maxpacket and other transfer characteristics vary by speed. */
+#define ep_desc(g, hs, fs) (((g)->speed == USB_SPEED_HIGH)?(hs):(fs))
+
+#else
+
+/* if there's no high speed support, maxpacket doesn't change. */
+#define ep_desc(g, hs, fs) (((void)(g)), (fs))
+
+#endif	/* !CONFIG_USB_GADGET_DUALSPEED */
+
+/*-------------------------------------------------------------------------*/
+
+/* descriptors that are built on-demand */
+
+static char				manufacturer [50];
+static char				product_desc [40] = DRIVER_DESC;
+static char				serial_num [40] = "1";
+static char				pnp_string [1024] =
+	"XXMFG:linux;MDL:g_printer;CLS:PRINTER;SN:1;";
+
+/* static strings, in UTF-8 */
+static struct usb_string		strings [] = {
+	{ STRING_MANUFACTURER,	manufacturer, },
+	{ STRING_PRODUCT,	product_desc, },
+	{ STRING_SERIALNUM,	serial_num, },
+	{  }		/* end of list */
+};
+
+static struct usb_gadget_strings	stringtab = {
+	.language	= 0x0409,	/* en-us */
+	.strings	= strings,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static struct usb_request *
+printer_req_alloc(struct usb_ep *ep, unsigned len, gfp_t gfp_flags)
+{
+	struct usb_request	*req;
+
+	req = usb_ep_alloc_request(ep, gfp_flags);
+
+	if (req != NULL) {
+		req->length = len;
+		req->buf = kmalloc(len, gfp_flags);
+		if (req->buf == NULL) {
+			usb_ep_free_request(ep, req);
+			return NULL;
+		}
+	}
+
+	return req;
+}
+
+static void
+printer_req_free(struct usb_ep *ep, struct usb_request *req)
+{
+	if (ep != NULL && req != NULL) {
+		kfree(req->buf);
+		usb_ep_free_request(ep, req);
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void rx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct printer_dev	*dev = ep->driver_data;
+	int			status = req->status;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	list_del_init(&req->list);	/* Remode from Active List */
+
+	switch (status) {
+
+	/* normal completion */
+	case 0:
+		list_add_tail(&req->list, &dev->rx_buffers);
+		wake_up_interruptible(&dev->rx_wait);
+		DBG(dev, "G_Printer : rx length %d\n", req->actual);
+		break;
+
+	/* software-driven interface shutdown */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		VDBG(dev, "rx shutdown, code %d\n", status);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+
+	/* for hardware automagic (such as pxa) */
+	case -ECONNABORTED:		/* endpoint reset */
+		DBG(dev, "rx %s reset\n", ep->name);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+
+	/* data overrun */
+	case -EOVERFLOW:
+		/* FALLTHROUGH */
+
+	default:
+		DBG(dev, "rx status %d\n", status);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+	}
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+static void tx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct printer_dev	*dev = ep->driver_data;
+
+	switch (req->status) {
+	default:
+		VDBG(dev, "tx err %d\n", req->status);
+		/* FALLTHROUGH */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		break;
+	case 0:
+		break;
+	}
+
+	spin_lock(&dev->lock);
+	/* Take the request struct off the active list and put it on the
+	 * free list.
+	 */
+	list_del_init(&req->list);
+	list_add(&req->list, &dev->tx_reqs);
+	wake_up_interruptible(&dev->tx_wait);
+	if (likely(list_empty(&dev->tx_reqs_active)))
+		wake_up_interruptible(&dev->tx_flush_wait);
+
+	spin_unlock(&dev->lock);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int
+printer_open(struct inode *inode, struct file *fd)
+{
+	struct printer_dev	*dev;
+	unsigned long		flags;
+	int			ret = -EBUSY;
+
+	dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev);
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	if (!dev->printer_cdev_open) {
+		dev->printer_cdev_open = 1;
+		fd->private_data = dev;
+		ret = 0;
+		/* Change the printer status to show that it's on-line. */
+		dev->printer_status |= PRINTER_SELECTED;
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	DBG(dev, "printer_open returned %x\n", ret);
+
+	return ret;
+}
+
+static int
+printer_close(struct inode *inode, struct file *fd)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	dev->printer_cdev_open = 0;
+	fd->private_data = NULL;
+	/* Change printer status to show that the printer is off-line. */
+	dev->printer_status &= ~PRINTER_SELECTED;
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	DBG(dev, "printer_close\n");
+
+	return 0;
+}
+
+static ssize_t
+printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
+{
+	struct printer_dev		*dev = fd->private_data;
+	unsigned long			flags;
+	size_t				size;
+	size_t				bytes_copied;
+	struct usb_request		*req;
+	/* This is a pointer to the current USB rx request. */
+	struct usb_request		*current_rx_req;
+	/* This is the number of bytes in the current rx buffer. */
+	size_t				current_rx_bytes;
+	/* This is a pointer to the current rx buffer. */
+	u8				*current_rx_buf;
+
+	if (len == 0)
+		return -EINVAL;
+
+	DBG(dev, "printer_read trying to read %d bytes\n", (int)len);
+
+	spin_lock(&dev->lock_printer_io);
+	spin_lock_irqsave(&dev->lock, flags);
+
+	/* We will use this flag later to check if a printer reset happened
+	 * after we turn interrupts back on.
+	 */
+	dev->reset_printer = 0;
+
+	while (likely(!list_empty(&dev->rx_reqs))) {
+		int error;
+
+		req = container_of(dev->rx_reqs.next,
+				struct usb_request, list);
+		list_del_init(&req->list);
+
+		/* The USB Host sends us whatever amount of data it wants to
+		 * so we always set the length field to the full USB_BUFSIZE.
+		 * If the amount of data is more than the read() caller asked
+		 * for it will be stored in the request buffer until it is
+		 * asked for by read().
+		 */
+		req->length = USB_BUFSIZE;
+		req->complete = rx_complete;
+
+		error = usb_ep_queue(dev->out_ep, req, GFP_ATOMIC);
+		if (error) {
+			DBG(dev, "rx submit --> %d\n", error);
+			list_add(&req->list, &dev->rx_reqs);
+			break;
+		} else {
+			list_add(&req->list, &dev->rx_reqs_active);
+		}
+	}
+
+	bytes_copied = 0;
+	current_rx_req = dev->current_rx_req;
+	current_rx_bytes = dev->current_rx_bytes;
+	current_rx_buf = dev->current_rx_buf;
+	dev->current_rx_req = NULL;
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+
+	/* Check if there is any data in the read buffers. Please note that
+	 * current_rx_bytes is the number of bytes in the current rx buffer.
+	 * If it is zero then check if there are any other rx_buffers that
+	 * are on the completed list. We are only out of data if all rx
+	 * buffers are empty.
+	 */
+	if ((current_rx_bytes == 0) &&
+			(likely(list_empty(&dev->rx_buffers)))) {
+		/* Turn interrupts back on before sleeping. */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		/*
+		 * If no data is available check if this is a NON-Blocking
+		 * call or not.
+		 */
+		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
+			spin_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* Sleep until data is available */
+		wait_event_interruptible(dev->rx_wait,
+				(likely(!list_empty(&dev->rx_buffers))));
+		spin_lock_irqsave(&dev->lock, flags);
+	}
+
+	/* We have data to return then copy it to the caller's buffer.*/
+	while ((current_rx_bytes || likely(!list_empty(&dev->rx_buffers)))
+			&& len) {
+		if (current_rx_bytes == 0) {
+			req = container_of(dev->rx_buffers.next,
+					struct usb_request, list);
+			list_del_init(&req->list);
+
+			if (req->actual && req->buf) {
+				current_rx_req = req;
+				current_rx_bytes = req->actual;
+				current_rx_buf = req->buf;
+			} else {
+				list_add(&req->list, &dev->rx_reqs);
+				continue;
+			}
+		}
+
+		/* Don't leave irqs off while doing memory copies */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		if (len > current_rx_bytes)
+			size = current_rx_bytes;
+		else
+			size = len;
+
+		size -= copy_to_user(buf, current_rx_buf, size);
+		bytes_copied += size;
+		len -= size;
+		buf += size;
+
+		spin_lock_irqsave(&dev->lock, flags);
+
+		/* We've disconnected or reset free the req and buffer */
+		if (dev->reset_printer) {
+			printer_req_free(dev->out_ep, current_rx_req);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			spin_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* If we not returning all the data left in this RX request
+		 * buffer then adjust the amount of data left in the buffer.
+		 * Othewise if we are done with this RX request buffer then
+		 * requeue it to get any incoming data from the USB host.
+		 */
+		if (size < current_rx_bytes) {
+			current_rx_bytes -= size;
+			current_rx_buf += size;
+		} else {
+			list_add(&current_rx_req->list, &dev->rx_reqs);
+			current_rx_bytes = 0;
+			current_rx_buf = NULL;
+			current_rx_req = NULL;
+		}
+	}
+
+	dev->current_rx_req = current_rx_req;
+	dev->current_rx_bytes = current_rx_bytes;
+	dev->current_rx_buf = current_rx_buf;
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+	spin_unlock(&dev->lock_printer_io);
+
+	DBG(dev, "printer_read returned %d bytes\n", (int)bytes_copied);
+
+	if (bytes_copied)
+		return bytes_copied;
+	else
+		return -EAGAIN;
+}
+
+static ssize_t
+printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	size_t			size;	/* Amount of data in a TX request. */
+	size_t			bytes_copied = 0;
+	struct usb_request	*req;
+
+	DBG(dev, "printer_write trying to send %d bytes\n", (int)len);
+
+	if (len == 0)
+		return -EINVAL;
+
+	spin_lock(&dev->lock_printer_io);
+	spin_lock_irqsave(&dev->lock, flags);
+
+	/* Check if a printer reset happens while we have interrupts on */
+	dev->reset_printer = 0;
+
+	/* Check if there is any available write buffers */
+	if (likely(list_empty(&dev->tx_reqs))) {
+		/* Turn interrupts back on before sleeping. */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		/*
+		 * If write buffers are available check if this is
+		 * a NON-Blocking call or not.
+		 */
+		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
+			spin_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* Sleep until a write buffer is available */
+		wait_event_interruptible(dev->tx_wait,
+				(likely(!list_empty(&dev->tx_reqs))));
+		spin_lock_irqsave(&dev->lock, flags);
+	}
+
+	while (likely(!list_empty(&dev->tx_reqs)) && len) {
+
+		if (len > USB_BUFSIZE)
+			size = USB_BUFSIZE;
+		else
+			size = len;
+
+		req = container_of(dev->tx_reqs.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+
+		req->complete = tx_complete;
+		req->length = size;
+
+		/* Check if we need to send a zero length packet. */
+		if (len > size)
+			/* They will be more TX requests so no yet. */
+			req->zero = 0;
+		else
+			/* If the data amount is not a multple of the
+			 * maxpacket size then send a zero length packet.
+			 */
+			req->zero = ((len % dev->in_ep->maxpacket) == 0);
+
+		/* Don't leave irqs off while doing memory copies */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		if (copy_from_user(req->buf, buf, size)) {
+			list_add(&req->list, &dev->tx_reqs);
+			spin_unlock(&dev->lock_printer_io);
+			return bytes_copied;
+		}
+
+		bytes_copied += size;
+		len -= size;
+		buf += size;
+
+		spin_lock_irqsave(&dev->lock, flags);
+
+		/* We've disconnected or reset so free the req and buffer */
+		if (dev->reset_printer) {
+			printer_req_free(dev->in_ep, req);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			spin_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) {
+			list_add(&req->list, &dev->tx_reqs);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			spin_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		list_add(&req->list, &dev->tx_reqs_active);
+
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+	spin_unlock(&dev->lock_printer_io);
+
+	DBG(dev, "printer_write sent %d bytes\n", (int)bytes_copied);
+
+	if (bytes_copied) {
+		return bytes_copied;
+	} else {
+		return -EAGAIN;
+	}
+}
+
+static int
+printer_fsync(struct file *fd, struct dentry *dentry, int datasync)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	int			tx_list_empty;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	tx_list_empty = (likely(list_empty(&dev->tx_reqs)));
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	if (!tx_list_empty) {
+		/* Sleep until all data has been sent */
+		wait_event_interruptible(dev->tx_flush_wait,
+				(likely(list_empty(&dev->tx_reqs_active))));
+	}
+
+	return 0;
+}
+
+static unsigned int
+printer_poll(struct file *fd, poll_table *wait)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	int			status = 0;
+
+	poll_wait(fd, &dev->rx_wait, wait);
+	poll_wait(fd, &dev->tx_wait, wait);
+
+	spin_lock_irqsave(&dev->lock, flags);
+	if (likely(!list_empty(&dev->tx_reqs)))
+		status |= POLLOUT | POLLWRNORM;
+
+	if (likely(!list_empty(&dev->rx_buffers)))
+		status |= POLLIN | POLLRDNORM;
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return status;
+}
+
+static int
+printer_ioctl(struct inode *inode, struct file *fd, unsigned int code,
+		unsigned long arg)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	int			status = 0;
+
+	DBG(dev, "printer_ioctl: cmd=0x%4.4x, arg=%lu\n", code, arg);
+
+	/* handle ioctls */
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	switch (code) {
+	case GADGET_GET_PRINTER_STATUS:
+		status = (int)dev->printer_status;
+		break;
+	case GADGET_SET_PRINTER_STATUS:
+		dev->printer_status = (u8)arg;
+		break;
+	default:
+		/* could not handle ioctl */
+		DBG(dev, "printer_ioctl: ERROR cmd=0x%4.4xis not supported\n",
+				code);
+		status = -ENOTTY;
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return status;
+}
+
+/* used after endpoint configuration */
+static struct file_operations printer_io_operations = {
+	.owner =	THIS_MODULE,
+	.open =		printer_open,
+	.read =		printer_read,
+	.write =	printer_write,
+	.fsync =	printer_fsync,
+	.poll =		printer_poll,
+	.ioctl =	printer_ioctl,
+	.release =	printer_close
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int
+set_printer_interface(struct printer_dev *dev)
+{
+	int			result = 0;
+
+	dev->in = ep_desc(dev->gadget, &hs_ep_in_desc, &fs_ep_in_desc);
+	dev->in_ep->driver_data = dev;
+
+	dev->out = ep_desc(dev->gadget, &hs_ep_out_desc, &fs_ep_out_desc);
+	dev->out_ep->driver_data = dev;
+
+	result = usb_ep_enable(dev->in_ep, dev->in);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+		goto done;
+	}
+
+	result = usb_ep_enable(dev->out_ep, dev->out);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+		goto done;
+	}
+
+done:
+	/* on error, disable any endpoints  */
+	if (result != 0) {
+		(void) usb_ep_disable(dev->in_ep);
+		(void) usb_ep_disable(dev->out_ep);
+		dev->in = NULL;
+		dev->out = NULL;
+	}
+
+	/* caller is responsible for cleanup on error */
+	return result;
+}
+
+static void printer_reset_interface(struct printer_dev *dev)
+{
+	if (dev->interface < 0)
+		return;
+
+	DBG(dev, "%s\n", __FUNCTION__);
+
+	if (dev->in)
+		usb_ep_disable(dev->in_ep);
+
+	if (dev->out)
+		usb_ep_disable(dev->out_ep);
+
+	dev->interface = -1;
+}
+
+/* change our operational config.  must agree with the code
+ * that returns config descriptors, and altsetting code.
+ */
+static int
+printer_set_config(struct printer_dev *dev, unsigned number)
+{
+	int			result = 0;
+	struct usb_gadget	*gadget = dev->gadget;
+
+	if (gadget_is_sa1100(gadget) && dev->config) {
+		/* tx fifo is full, but we can't clear it...*/
+		INFO(dev, "can't change configurations\n");
+		return -ESPIPE;
+	}
+
+	switch (number) {
+	case DEV_CONFIG_VALUE:
+		result = 0;
+		break;
+	default:
+		result = -EINVAL;
+		/* FALL THROUGH */
+	case 0:
+		break;
+	}
+
+	if (result) {
+		usb_gadget_vbus_draw(dev->gadget,
+				dev->gadget->is_otg ? 8 : 100);
+	} else {
+		char *speed;
+		unsigned power;
+
+		power = 2 * config_desc.bMaxPower;
+		usb_gadget_vbus_draw(dev->gadget, power);
+
+		switch (gadget->speed) {
+		case USB_SPEED_FULL:	speed = "full"; break;
+#ifdef CONFIG_USB_GADGET_DUALSPEED
+		case USB_SPEED_HIGH:	speed = "high"; break;
+#endif
+		default:		speed = "?"; break;
+		}
+
+		dev->config = number;
+		INFO(dev, "%s speed config #%d: %d mA, %s\n",
+				speed, number, power, driver_desc);
+	}
+	return result;
+}
+
+static int
+config_buf(enum usb_device_speed speed, u8 *buf, u8 type, unsigned index,
+		int is_otg)
+{
+	int					len;
+	const struct usb_descriptor_header	**function;
+#ifdef CONFIG_USB_GADGET_DUALSPEED
+	int					hs = (speed == USB_SPEED_HIGH);
+
+	if (type == USB_DT_OTHER_SPEED_CONFIG)
+		hs = !hs;
+
+	if (hs) {
+		function = hs_printer_function;
+	} else {
+		function = fs_printer_function;
+	}
+#else
+	function = fs_printer_function;
+#endif
+
+	if (index >= device_desc.bNumConfigurations)
+		return -EINVAL;
+
+	/* for now, don't advertise srp-only devices */
+	if (!is_otg)
+		function++;
+
+	len = usb_gadget_config_buf(&config_desc, buf, USB_DESC_BUFSIZE,
+			function);
+	if (len < 0)
+		return len;
+	((struct usb_config_descriptor *) buf)->bDescriptorType = type;
+	return len;
+}
+
+/* Change our operational Interface. */
+static int
+set_interface(struct printer_dev *dev, unsigned number)
+{
+	int			result = 0;
+
+	if (gadget_is_sa1100(dev->gadget) && dev->interface < 0) {
+		/* tx fifo is full, but we can't clear it...*/
+		INFO(dev, "can't change interfaces\n");
+		return -ESPIPE;
+	}
+
+	/* Free the current interface */
+	switch (dev->interface) {
+	case PRINTER_INTERFACE:
+		printer_reset_interface(dev);
+		break;
+	}
+
+	switch (number) {
+	case PRINTER_INTERFACE:
+		result = set_printer_interface(dev);
+		if (result) {
+			printer_reset_interface(dev);
+		} else {
+			dev->interface = PRINTER_INTERFACE;
+		}
+		break;
+	default:
+		result = -EINVAL;
+		/* FALL THROUGH */
+	}
+
+	if (!result)
+		INFO(dev, "Using interface %x\n", number);
+
+	return result;
+}
+
+static void printer_setup_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	if (req->status || req->actual != req->length)
+		DBG((struct printer_dev *) ep->driver_data,
+				"setup complete --> %d, %d/%d\n",
+				req->status, req->actual, req->length);
+}
+
+static void printer_soft_reset(struct printer_dev *dev)
+{
+	struct usb_request	*req;
+
+	INFO(dev, "Received Printer Reset Request\n");
+
+	if (usb_ep_disable(dev->in_ep))
+		DBG(dev, "Failed to disable USB in_ep\n");
+	if (usb_ep_disable(dev->out_ep))
+		DBG(dev, "Failed to disable USB out_ep\n");
+
+	if (dev->current_rx_req != NULL) {
+		list_add(&dev->current_rx_req->list, &dev->rx_reqs);
+		dev->current_rx_req = NULL;
+	}
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+	dev->reset_printer = 1;
+
+	while (likely(!(list_empty(&dev->rx_buffers)))) {
+		req = container_of(dev->rx_buffers.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	while (likely(!(list_empty(&dev->rx_reqs_active)))) {
+		req = container_of(dev->rx_buffers.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	while (likely(!(list_empty(&dev->tx_reqs_active)))) {
+		req = container_of(dev->tx_reqs_active.next,
+				struct usb_request, list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->tx_reqs);
+	}
+
+	if (usb_ep_enable(dev->in_ep, dev->in))
+		DBG(dev, "Failed to enable USB in_ep\n");
+	if (usb_ep_enable(dev->out_ep, dev->out))
+		DBG(dev, "Failed to enable USB out_ep\n");
+
+	wake_up_interruptible(&dev->tx_wait);
+	wake_up_interruptible(&dev->tx_flush_wait);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * The setup() callback implements all the ep0 functionality that's not
+ * handled lower down.
+ */
+static int
+printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
+{
+	struct printer_dev	*dev = get_gadget_data(gadget);
+	struct usb_request	*req = dev->req;
+	int			value = -EOPNOTSUPP;
+	u16			wIndex = le16_to_cpu(ctrl->wIndex);
+	u16			wValue = le16_to_cpu(ctrl->wValue);
+	u16			wLength = le16_to_cpu(ctrl->wLength);
+
+	DBG(dev, "ctrl req%02x.%02x v%04x i%04x l%d\n",
+		ctrl->bRequestType, ctrl->bRequest, wValue, wIndex, wLength);
+
+	req->complete = printer_setup_complete;
+
+	switch (ctrl->bRequestType&USB_TYPE_MASK) {
+
+	case USB_TYPE_STANDARD:
+		switch (ctrl->bRequest) {
+
+		case USB_REQ_GET_DESCRIPTOR:
+			if (ctrl->bRequestType != USB_DIR_IN)
+				break;
+			switch (wValue >> 8) {
+
+			case USB_DT_DEVICE:
+				value = min(wLength, (u16) sizeof device_desc);
+				memcpy(req->buf, &device_desc, value);
+				break;
+#ifdef CONFIG_USB_GADGET_DUALSPEED
+			case USB_DT_DEVICE_QUALIFIER:
+				if (!gadget->is_dualspeed)
+					break;
+				value = min(wLength,
+						(u16) sizeof dev_qualifier);
+				memcpy(req->buf, &dev_qualifier, value);
+				break;
+
+			case USB_DT_OTHER_SPEED_CONFIG:
+				if (!gadget->is_dualspeed)
+					break;
+				/* FALLTHROUGH */
+#endif /* CONFIG_USB_GADGET_DUALSPEED */
+			case USB_DT_CONFIG:
+				value = config_buf(gadget->speed, req->buf,
+						wValue >> 8,
+						wValue & 0xff,
+						gadget->is_otg);
+				if (value >= 0)
+					value = min(wLength, (u16) value);
+				break;
+
+			case USB_DT_STRING:
+				value = usb_gadget_get_string(&stringtab,
+						wValue & 0xff, req->buf);
+				if (value >= 0)
+					value = min(wLength, (u16) value);
+				break;
+			}
+			break;
+
+		case USB_REQ_SET_CONFIGURATION:
+			if (ctrl->bRequestType != 0)
+				break;
+			if (gadget->a_hnp_support)
+				DBG(dev, "HNP available\n");
+			else if (gadget->a_alt_hnp_support)
+				DBG(dev, "HNP needs a different root port\n");
+			value = printer_set_config(dev, wValue);
+			break;
+		case USB_REQ_GET_CONFIGURATION:
+			if (ctrl->bRequestType != USB_DIR_IN)
+				break;
+			*(u8 *)req->buf = dev->config;
+			value = min(wLength, (u16) 1);
+			break;
+
+		case USB_REQ_SET_INTERFACE:
+			if (ctrl->bRequestType != USB_RECIP_INTERFACE ||
+					!dev->config)
+				break;
+
+			value = set_interface(dev, PRINTER_INTERFACE);
+			break;
+		case USB_REQ_GET_INTERFACE:
+			if (ctrl->bRequestType !=
+					(USB_DIR_IN|USB_RECIP_INTERFACE)
+					|| !dev->config)
+				break;
+
+			*(u8 *)req->buf = dev->interface;
+			value = min(wLength, (u16) 1);
+			break;
+
+		default:
+			goto unknown;
+		}
+		break;
+
+	case USB_TYPE_CLASS:
+		switch (ctrl->bRequest) {
+		case 0: /* Get the IEEE-1284 PNP String */
+			/* Only one printer interface is supported. */
+			if ((wIndex>>8) != PRINTER_INTERFACE)
+				break;
+
+			value = (pnp_string[0]<<8)|pnp_string[1];
+			memcpy(req->buf, pnp_string, value);
+			DBG(dev, "1284 PNP String: %x %s\n", value,
+					&pnp_string[2]);
+			break;
+
+		case 1: /* Get Port Status */
+			/* Only one printer interface is supported. */
+			if (wIndex != PRINTER_INTERFACE)
+				break;
+
+			*(u8 *)req->buf = dev->printer_status;
+			value = min(wLength, (u16) 1);
+			break;
+
+		case 2: /* Soft Reset */
+			/* Only one printer interface is supported. */
+			if (wIndex != PRINTER_INTERFACE)
+				break;
+
+			printer_soft_reset(dev);
+
+			value = 0;
+			break;
+
+		default:
+			goto unknown;
+		}
+		break;
+
+	default:
+unknown:
+		VDBG(dev,
+			"unknown ctrl req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			wValue, wIndex, wLength);
+		break;
+	}
+
+	/* respond with data transfer before status phase? */
+	if (value >= 0) {
+		req->length = value;
+		req->zero = value < wLength
+				&& (value % gadget->ep0->maxpacket) == 0;
+		value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0) {
+			DBG(dev, "ep_queue --> %d\n", value);
+			req->status = 0;
+			printer_setup_complete(gadget->ep0, req);
+		}
+	}
+
+	/* host either stalls (value < 0) or reports success */
+	return value;
+}
+
+static void
+printer_disconnect(struct usb_gadget *gadget)
+{
+	struct printer_dev	*dev = get_gadget_data(gadget);
+	unsigned long		flags;
+
+	DBG(dev, "%s\n", __FUNCTION__);
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	printer_reset_interface(dev);
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+static void
+printer_unbind(struct usb_gadget *gadget)
+{
+	struct printer_dev	*dev = get_gadget_data(gadget);
+	struct usb_request	*req;
+
+
+	DBG(dev, "%s\n", __FUNCTION__);
+
+	/* Remove sysfs files */
+	device_destroy(usb_gadget_class, g_printer_devno);
+
+	/* Remove Character Device */
+	cdev_del(&dev->printer_cdev);
+
+	/* we must already have been disconnected ... no i/o may be active */
+	WARN_ON(!list_empty(&dev->tx_reqs_active));
+	WARN_ON(!list_empty(&dev->rx_reqs_active));
+
+	/* Free all memory for this driver. */
+	while (!list_empty(&dev->tx_reqs)) {
+		req = container_of(dev->tx_reqs.next, struct usb_request,
+				list);
+		list_del(&req->list);
+		printer_req_free(dev->in_ep, req);
+	}
+
+	if (dev->current_rx_req != NULL);
+		printer_req_free(dev->out_ep, dev->current_rx_req);
+
+	while (!list_empty(&dev->rx_reqs)) {
+		req = container_of(dev->rx_reqs.next,
+				struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->out_ep, req);
+	}
+
+	while (!list_empty(&dev->rx_buffers)) {
+		req = container_of(dev->rx_buffers.next,
+				struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->out_ep, req);
+	}
+
+	if (dev->req) {
+		printer_req_free(gadget->ep0, dev->req);
+		dev->req = NULL;
+	}
+
+	set_gadget_data(gadget, NULL);
+}
+
+static int __init
+printer_bind(struct usb_gadget *gadget)
+{
+	struct printer_dev	*dev;
+	struct usb_ep		*in_ep, *out_ep;
+	int			status = -ENOMEM;
+	int			gcnum;
+	size_t			len;
+	u32			i;
+	struct usb_request	*req;
+
+	dev = &usb_printer_gadget;
+
+
+	/* Setup the sysfs files for the printer gadget. */
+	dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno,
+			"g_printer");
+	if (IS_ERR(dev->pdev)) {
+		ERROR(dev, "Failed to create device: g_printer\n");
+		goto fail;
+	}
+
+	/*
+	 * Register a character device as an interface to a user mode
+	 * program that handles the printer specific functionality.
+	 */
+	cdev_init(&dev->printer_cdev, &printer_io_operations);
+	dev->printer_cdev.owner = THIS_MODULE;
+	status = cdev_add(&dev->printer_cdev, g_printer_devno, 1);
+	if (status) {
+		ERROR(dev, "Failed to open char device\n");
+		goto fail;
+	}
+
+	if (gadget_is_sa1100(gadget)) {
+		/* hardware can't write zero length packets. */
+		ERROR(dev, "SA1100 controller is unsupport by this driver\n");
+		goto fail;
+	}
+
+	gcnum = usb_gadget_controller_number(gadget);
+	if (gcnum >= 0) {
+		device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
+	} else {
+		dev_warn(&gadget->dev, "controller '%s' not recognized\n",
+			gadget->name);
+		/* unrecognized, but safe unless bulk is REALLY quirky */
+		device_desc.bcdDevice =
+			__constant_cpu_to_le16(0xFFFF);
+	}
+	snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s",
+		init_utsname()->sysname, init_utsname()->release,
+		gadget->name);
+
+	device_desc.idVendor =
+		__constant_cpu_to_le16(PRINTER_VENDOR_NUM);
+	device_desc.idProduct =
+		__constant_cpu_to_le16(PRINTER_PRODUCT_NUM);
+
+	/* support optional vendor/distro customization */
+	if (idVendor) {
+		if (!idProduct) {
+			dev_err(&gadget->dev, "idVendor needs idProduct!\n");
+			return -ENODEV;
+		}
+		device_desc.idVendor = cpu_to_le16(idVendor);
+		device_desc.idProduct = cpu_to_le16(idProduct);
+		if (bcdDevice)
+			device_desc.bcdDevice = cpu_to_le16(bcdDevice);
+	}
+
+	if (iManufacturer)
+		strlcpy(manufacturer, iManufacturer, sizeof manufacturer);
+
+	if (iProduct)
+		strlcpy(product_desc, iProduct, sizeof product_desc);
+
+	if (iSerialNum)
+		strlcpy(serial_num, iSerialNum, sizeof serial_num);
+
+	if (iPNPstring)
+		strlcpy(&pnp_string[2], iPNPstring, (sizeof pnp_string)-2);
+
+	len = strlen(pnp_string);
+	pnp_string[0] = (len >> 8) & 0xFF;
+	pnp_string[1] = len & 0xFF;
+
+	/* all we really need is bulk IN/OUT */
+	usb_ep_autoconfig_reset(gadget);
+	in_ep = usb_ep_autoconfig(gadget, &fs_ep_in_desc);
+	if (!in_ep) {
+autoconf_fail:
+		dev_err(&gadget->dev, "can't autoconfigure on %s\n",
+			gadget->name);
+		return -ENODEV;
+	}
+	in_ep->driver_data = in_ep;	/* claim */
+
+	out_ep = usb_ep_autoconfig(gadget, &fs_ep_out_desc);
+	if (!out_ep)
+		goto autoconf_fail;
+	out_ep->driver_data = out_ep;	/* claim */
+
+#ifdef	CONFIG_USB_GADGET_DUALSPEED
+	/* assumes ep0 uses the same value for both speeds ... */
+	dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0;
+
+	/* and that all endpoints are dual-speed */
+	hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
+	hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
+#endif	/* DUALSPEED */
+
+	device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
+	usb_gadget_set_selfpowered(gadget);
+
+	if (gadget->is_otg) {
+		otg_desc.bmAttributes |= USB_OTG_HNP,
+		config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+		config_desc.bMaxPower = 4;
+	}
+
+	spin_lock_init(&dev->lock);
+	spin_lock_init(&dev->lock_printer_io);
+	INIT_LIST_HEAD(&dev->tx_reqs);
+	INIT_LIST_HEAD(&dev->tx_reqs_active);
+	INIT_LIST_HEAD(&dev->rx_reqs);
+	INIT_LIST_HEAD(&dev->rx_reqs_active);
+	INIT_LIST_HEAD(&dev->rx_buffers);
+	init_waitqueue_head(&dev->rx_wait);
+	init_waitqueue_head(&dev->tx_wait);
+	init_waitqueue_head(&dev->tx_flush_wait);
+
+	dev->config = 0;
+	dev->interface = -1;
+	dev->printer_cdev_open = 0;
+	dev->printer_status = PRINTER_NOT_ERROR;
+	dev->current_rx_req = NULL;
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+
+	dev->in_ep = in_ep;
+	dev->out_ep = out_ep;
+
+	/* preallocate control message data and buffer */
+	dev->req = printer_req_alloc(gadget->ep0, USB_DESC_BUFSIZE,
+			GFP_KERNEL);
+	if (!dev->req) {
+		status = -ENOMEM;
+		goto fail;
+	}
+
+	for (i = 0; i < QLEN; i++) {
+		req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
+		if (!req) {
+			while (!list_empty(&dev->tx_reqs)) {
+				req = container_of(dev->tx_reqs.next,
+						struct usb_request, list);
+				list_del(&req->list);
+				printer_req_free(dev->in_ep, req);
+			}
+			return -ENOMEM;
+		}
+		list_add(&req->list, &dev->tx_reqs);
+	}
+
+	for (i = 0; i < QLEN; i++) {
+		req = printer_req_alloc(dev->out_ep, USB_BUFSIZE, GFP_KERNEL);
+		if (!req) {
+			while (!list_empty(&dev->rx_reqs)) {
+				req = container_of(dev->rx_reqs.next,
+						struct usb_request, list);
+				list_del(&req->list);
+				printer_req_free(dev->out_ep, req);
+			}
+			return -ENOMEM;
+		}
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	dev->req->complete = printer_setup_complete;
+
+	/* finish hookup to lower layer ... */
+	dev->gadget = gadget;
+	set_gadget_data(gadget, dev);
+	gadget->ep0->driver_data = dev;
+
+	INFO(dev, "%s, version: " DRIVER_VERSION "\n", driver_desc);
+	INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, out_ep->name,
+			in_ep->name);
+
+	return 0;
+
+fail:
+	printer_unbind(gadget);
+	return status;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct usb_gadget_driver printer_driver = {
+	.speed		= DEVSPEED,
+
+	.function	= (char *) driver_desc,
+	.bind		= printer_bind,
+	.unbind		= printer_unbind,
+
+	.setup		= printer_setup,
+	.disconnect	= printer_disconnect,
+
+	.driver		= {
+		.name		= (char *) shortname,
+		.owner		= THIS_MODULE,
+	},
+};
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Craig Nadler");
+MODULE_LICENSE("GPL");
+
+static int __init
+init(void)
+{
+	int status;
+
+	usb_gadget_class = class_create(THIS_MODULE, "usb_printer_gadget");
+	if (IS_ERR(usb_gadget_class)) {
+		status = PTR_ERR(usb_gadget_class);
+		ERROR(dev, "unable to create usb_gadget class %d\n", status);
+		return status;
+	}
+
+	status = alloc_chrdev_region(&g_printer_devno, 0, 1,
+			"USB printer gadget");
+	if (status) {
+		ERROR(dev, "alloc_chrdev_region %d\n", status);
+		class_destroy(usb_gadget_class);
+		return status;
+	}
+
+	status = usb_gadget_register_driver(&printer_driver);
+	if (status) {
+		class_destroy(usb_gadget_class);
+		unregister_chrdev_region(g_printer_devno, 1);
+		DBG(dev, "usb_gadget_register_driver %x\n", status);
+	}
+
+	return status;
+}
+module_init(init);
+
+static void __exit
+cleanup(void)
+{
+	int status;
+
+	spin_lock(&usb_printer_gadget.lock_printer_io);
+	class_destroy(usb_gadget_class);
+	unregister_chrdev_region(g_printer_devno, 2);
+
+	status = usb_gadget_unregister_driver(&printer_driver);
+	if (status)
+		ERROR(dev, "usb_gadget_unregister_driver %x\n", status);
+
+	spin_unlock(&usb_printer_gadget.lock_printer_io);
+}
+module_exit(cleanup);

drivers/usb/gadget/pxa2xx_udc.c

@@ -24,7 +24,7 @@
  *
  */
 
-// #define	VERBOSE	DBG_VERBOSE
+/* #define VERBOSE_DEBUG */
 
 #include <linux/device.h>
 #include <linux/module.h>
@@ -38,13 +38,14 @@
 #include <linux/timer.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
-#include <linux/proc_fs.h>
 #include <linux/mm.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/irq.h>
 #include <linux/clk.h>
 #include <linux/err.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
 
 #include <asm/byteorder.h>
 #include <asm/dma.h>
@@ -127,8 +128,10 @@ static int is_vbus_present(void)
 {
 	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
 
-	if (mach->gpio_vbus)
-		return gpio_get_value(mach->gpio_vbus);
+	if (mach->gpio_vbus) {
+		int value = gpio_get_value(mach->gpio_vbus);
+		return mach->gpio_vbus_inverted ? !value : value;
+	}
 	if (mach->udc_is_connected)
 		return mach->udc_is_connected();
 	return 1;
@@ -677,7 +680,7 @@ pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 
 	/* kickstart this i/o queue? */
 	if (list_empty(&ep->queue) && !ep->stopped) {
-		if (ep->desc == 0 /* ep0 */) {
+		if (ep->desc == NULL/* ep0 */) {
 			unsigned	length = _req->length;
 
 			switch (dev->ep0state) {
@@ -731,7 +734,7 @@ pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 	}
 
 	/* pio or dma irq handler advances the queue. */
-	if (likely (req != 0))
+	if (likely(req != NULL))
 		list_add_tail(&req->queue, &ep->queue);
 	local_irq_restore(flags);
 
@@ -991,45 +994,32 @@ static const struct usb_gadget_ops pxa2xx_udc_ops = {
 
 /*-------------------------------------------------------------------------*/
 
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-
-static const char proc_node_name [] = "driver/udc";
+#ifdef CONFIG_USB_GADGET_DEBUG_FS
 
 static int
-udc_proc_read(char *page, char **start, off_t off, int count,
-		int *eof, void *_dev)
+udc_seq_show(struct seq_file *m, void *d)
 {
-	char			*buf = page;
-	struct pxa2xx_udc	*dev = _dev;
-	char			*next = buf;
-	unsigned		size = count;
+	struct pxa2xx_udc	*dev = m->private;
 	unsigned long		flags;
-	int			i, t;
+	int			i;
 	u32			tmp;
 
-	if (off != 0)
-		return 0;
-
 	local_irq_save(flags);
 
 	/* basic device status */
-	t = scnprintf(next, size, DRIVER_DESC "\n"
+	seq_printf(m, DRIVER_DESC "\n"
 		"%s version: %s\nGadget driver: %s\nHost %s\n\n",
 		driver_name, DRIVER_VERSION SIZE_STR "(pio)",
 		dev->driver ? dev->driver->driver.name : "(none)",
 		is_vbus_present() ? "full speed" : "disconnected");
-	size -= t;
-	next += t;
 
 	/* registers for device and ep0 */
-	t = scnprintf(next, size,
+	seq_printf(m,
 		"uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
 		UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
-	size -= t;
-	next += t;
 
 	tmp = UDCCR;
-	t = scnprintf(next, size,
+	seq_printf(m,
 		"udccr %02X =%s%s%s%s%s%s%s%s\n", tmp,
 		(tmp & UDCCR_REM) ? " rem" : "",
 		(tmp & UDCCR_RSTIR) ? " rstir" : "",
@@ -1039,11 +1029,9 @@ udc_proc_read(char *page, char **start, off_t off, int count,
 		(tmp & UDCCR_RSM) ? " rsm" : "",
 		(tmp & UDCCR_UDA) ? " uda" : "",
 		(tmp & UDCCR_UDE) ? " ude" : "");
-	size -= t;
-	next += t;
 
 	tmp = UDCCS0;
-	t = scnprintf(next, size,
+	seq_printf(m,
 		"udccs0 %02X =%s%s%s%s%s%s%s%s\n", tmp,
 		(tmp & UDCCS0_SA) ? " sa" : "",
 		(tmp & UDCCS0_RNE) ? " rne" : "",
@@ -1053,28 +1041,22 @@ udc_proc_read(char *page, char **start, off_t off, int count,
 		(tmp & UDCCS0_FTF) ? " ftf" : "",
 		(tmp & UDCCS0_IPR) ? " ipr" : "",
 		(tmp & UDCCS0_OPR) ? " opr" : "");
-	size -= t;
-	next += t;
 
 	if (dev->has_cfr) {
 		tmp = UDCCFR;
-		t = scnprintf(next, size,
+		seq_printf(m,
 			"udccfr %02X =%s%s\n", tmp,
 			(tmp & UDCCFR_AREN) ? " aren" : "",
 			(tmp & UDCCFR_ACM) ? " acm" : "");
-		size -= t;
-		next += t;
 	}
 
 	if (!is_vbus_present() || !dev->driver)
 		goto done;
 
-	t = scnprintf(next, size, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
+	seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
 		dev->stats.write.bytes, dev->stats.write.ops,
 		dev->stats.read.bytes, dev->stats.read.ops,
 		dev->stats.irqs);
-	size -= t;
-	next += t;
 
 	/* dump endpoint queues */
 	for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
@@ -1082,61 +1064,68 @@ udc_proc_read(char *page, char **start, off_t off, int count,
 		struct pxa2xx_request	*req;
 
 		if (i != 0) {
-			const struct usb_endpoint_descriptor	*d;
+			const struct usb_endpoint_descriptor	*desc;
 
-			d = ep->desc;
-			if (!d)
+			desc = ep->desc;
+			if (!desc)
 				continue;
 			tmp = *dev->ep [i].reg_udccs;
-			t = scnprintf(next, size,
+			seq_printf(m,
 				"%s max %d %s udccs %02x irqs %lu\n",
-				ep->ep.name, le16_to_cpu (d->wMaxPacketSize),
+				ep->ep.name, le16_to_cpu(desc->wMaxPacketSize),
 				"pio", tmp, ep->pio_irqs);
 			/* TODO translate all five groups of udccs bits! */
 
 		} else /* ep0 should only have one transfer queued */
-			t = scnprintf(next, size, "ep0 max 16 pio irqs %lu\n",
+			seq_printf(m, "ep0 max 16 pio irqs %lu\n",
 				ep->pio_irqs);
-		if (t <= 0 || t > size)
-			goto done;
-		size -= t;
-		next += t;
 
 		if (list_empty(&ep->queue)) {
-			t = scnprintf(next, size, "\t(nothing queued)\n");
-			if (t <= 0 || t > size)
-				goto done;
-			size -= t;
-			next += t;
+			seq_printf(m, "\t(nothing queued)\n");
 			continue;
 		}
 		list_for_each_entry(req, &ep->queue, queue) {
-			t = scnprintf(next, size,
+			seq_printf(m,
 					"\treq %p len %d/%d buf %p\n",
 					&req->req, req->req.actual,
 					req->req.length, req->req.buf);
-			if (t <= 0 || t > size)
-				goto done;
-			size -= t;
-			next += t;
 		}
 	}
 
 done:
 	local_irq_restore(flags);
-	*eof = 1;
-	return count - size;
+	return 0;
 }
 
-#define create_proc_files() \
-	create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev)
-#define remove_proc_files() \
-	remove_proc_entry(proc_node_name, NULL)
+static int
+udc_debugfs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, udc_seq_show, inode->i_private);
+}
+
+static const struct file_operations debug_fops = {
+	.open		= udc_debugfs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.owner		= THIS_MODULE,
+};
+
+#define create_debug_files(dev) \
+	do { \
+		dev->debugfs_udc = debugfs_create_file(dev->gadget.name, \
+			S_IRUGO, NULL, dev, &debug_fops); \
+	} while (0)
+#define remove_debug_files(dev) \
+	do { \
+		if (dev->debugfs_udc) \
+			debugfs_remove(dev->debugfs_udc); \
+	} while (0)
 
 #else	/* !CONFIG_USB_GADGET_DEBUG_FILES */
 
-#define create_proc_files() do {} while (0)
-#define remove_proc_files() do {} while (0)
+#define create_debug_files(dev) do {} while (0)
+#define remove_debug_files(dev) do {} while (0)
 
 #endif	/* CONFIG_USB_GADGET_DEBUG_FILES */
 
@@ -1345,6 +1334,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	local_irq_enable();
 
 	driver->unbind(&dev->gadget);
+	dev->gadget.dev.driver = NULL;
 	dev->driver = NULL;
 
 	device_del (&dev->gadget.dev);
@@ -1397,6 +1387,9 @@ static irqreturn_t udc_vbus_irq(int irq, void *_dev)
 	struct pxa2xx_udc	*dev = _dev;
 	int			vbus = gpio_get_value(dev->mach->gpio_vbus);
 
+	if (dev->mach->gpio_vbus_inverted)
+		vbus = !vbus;
+
 	pxa2xx_udc_vbus_session(&dev->gadget, vbus);
 	return IRQ_HANDLED;
 }
@@ -2099,7 +2092,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
 	/* insist on Intel/ARM/XScale */
 	asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
 	if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
-		printk(KERN_ERR "%s: not XScale!\n", driver_name);
+		pr_err("%s: not XScale!\n", driver_name);
 		return -ENODEV;
 	}
 
@@ -2128,7 +2121,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
 		break;
 #endif
 	default:
-		printk(KERN_ERR "%s: unrecognized processor: %08x\n",
+		pr_err("%s: unrecognized processor: %08x\n",
 			driver_name, chiprev);
 		/* iop3xx, ixp4xx, ... */
 		return -ENODEV;
@@ -2199,7 +2192,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
 	retval = request_irq(irq, pxa2xx_udc_irq,
 			IRQF_DISABLED, driver_name, dev);
 	if (retval != 0) {
-		printk(KERN_ERR "%s: can't get irq %d, err %d\n",
+		pr_err("%s: can't get irq %d, err %d\n",
 			driver_name, irq, retval);
 		goto err_irq1;
 	}
@@ -2212,7 +2205,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
 				IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
 				driver_name, dev);
 		if (retval != 0) {
-			printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+			pr_err("%s: can't get irq %i, err %d\n",
 				driver_name, LUBBOCK_USB_DISC_IRQ, retval);
 lubbock_fail0:
 			goto err_irq_lub;
@@ -2222,7 +2215,7 @@ lubbock_fail0:
 				IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
 				driver_name, dev);
 		if (retval != 0) {
-			printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+			pr_err("%s: can't get irq %i, err %d\n",
 				driver_name, LUBBOCK_USB_IRQ, retval);
 			free_irq(LUBBOCK_USB_DISC_IRQ, dev);
 			goto lubbock_fail0;
@@ -2235,12 +2228,12 @@ lubbock_fail0:
 				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				driver_name, dev);
 		if (retval != 0) {
-			printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+			pr_err("%s: can't get irq %i, err %d\n",
 				driver_name, vbus_irq, retval);
 			goto err_vbus_irq;
 		}
 	}
-	create_proc_files();
+	create_debug_files(dev);
 
 	return 0;
 
@@ -2277,7 +2270,7 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
 		return -EBUSY;
 
 	udc_disable(dev);
-	remove_proc_files();
+	remove_debug_files(dev);
 
 	if (dev->got_irq) {
 		free_irq(platform_get_irq(pdev, 0), dev);
@@ -2361,7 +2354,7 @@ static struct platform_driver udc_driver = {
 
 static int __init udc_init(void)
 {
-	printk(KERN_INFO "%s: version %s\n", driver_name, DRIVER_VERSION);
+	pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
 	return platform_driver_probe(&udc_driver, pxa2xx_udc_probe);
 }
 module_init(udc_init);

drivers/usb/gadget/pxa2xx_udc.h

@@ -129,6 +129,10 @@ struct pxa2xx_udc {
 	struct pxa2xx_udc_mach_info		*mach;
 	u64					dma_mask;
 	struct pxa2xx_ep			ep [PXA_UDC_NUM_ENDPOINTS];
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FS
+	struct dentry				*debugfs_udc;
+#endif
 };
 
 /*-------------------------------------------------------------------------*/
@@ -151,17 +155,19 @@ static struct pxa2xx_udc *the_controller;
 #define DBG_NOISY	3	/* ... even more: request level */
 #define DBG_VERY_NOISY	4	/* ... even more: packet level */
 
+#define DMSG(stuff...)	pr_debug("udc: " stuff)
+
 #ifdef DEBUG
 
+static int is_vbus_present(void);
+
 static const char *state_name[] = {
 	"EP0_IDLE",
 	"EP0_IN_DATA_PHASE", "EP0_OUT_DATA_PHASE",
 	"EP0_END_XFER", "EP0_STALL"
 };
 
-#define DMSG(stuff...) printk(KERN_DEBUG "udc: " stuff)
-
-#ifdef VERBOSE
+#ifdef VERBOSE_DEBUG
 #    define UDC_DEBUG DBG_VERBOSE
 #else
 #    define UDC_DEBUG DBG_NORMAL
@@ -207,7 +213,7 @@ dump_state(struct pxa2xx_udc *dev)
 	unsigned	i;
 
 	DMSG("%s %s, uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
-		is_usb_connected() ? "host " : "disconnected",
+		is_vbus_present() ? "host " : "disconnected",
 		state_name[dev->ep0state],
 		UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
 	dump_udccr("udccr");
@@ -224,7 +230,7 @@ dump_state(struct pxa2xx_udc *dev)
 	} else
 		DMSG("ep0 driver '%s'\n", dev->driver->driver.name);
 
-	if (!is_usb_connected())
+	if (!is_vbus_present())
 		return;
 
 	dump_udccs0 ("udccs0");
@@ -233,7 +239,7 @@ dump_state(struct pxa2xx_udc *dev)
 		dev->stats.read.bytes, dev->stats.read.ops);
 
 	for (i = 1; i < PXA_UDC_NUM_ENDPOINTS; i++) {
-		if (dev->ep [i].desc == 0)
+		if (dev->ep [i].desc == NULL)
 			continue;
 		DMSG ("udccs%d = %02x\n", i, *dev->ep->reg_udccs);
 	}
@@ -241,8 +247,6 @@ dump_state(struct pxa2xx_udc *dev)
 
 #else
 
-#define DMSG(stuff...)		do{}while(0)
-
 #define	dump_udccr(x)	do{}while(0)
 #define	dump_udccs0(x)	do{}while(0)
 #define	dump_state(x)	do{}while(0)
@@ -253,8 +257,9 @@ dump_state(struct pxa2xx_udc *dev)
 
 #define DBG(lvl, stuff...) do{if ((lvl) <= UDC_DEBUG) DMSG(stuff);}while(0)
 
-#define WARN(stuff...) printk(KERN_WARNING "udc: " stuff)
-#define INFO(stuff...) printk(KERN_INFO "udc: " stuff)
+#define ERR(stuff...)		pr_err("udc: " stuff)
+#define WARN(stuff...)		pr_warning("udc: " stuff)
+#define INFO(stuff...)		pr_info("udc: " stuff)
 
 
 #endif /* __LINUX_USB_GADGET_PXA2XX_H */

drivers/usb/gadget/rndis.c

@@ -53,21 +53,18 @@
  */
 
 #if 0
-#define DBG(str,args...) do { \
-	if (rndis_debug) \
-		printk(KERN_DEBUG str , ## args ); \
-	} while (0)
 static int rndis_debug = 0;
-
 module_param (rndis_debug, int, 0);
 MODULE_PARM_DESC (rndis_debug, "enable debugging");
-
 #else
-
 #define rndis_debug		0
-#define DBG(str,args...)	do{}while(0)
 #endif
 
+#define DBG(str,args...) do { \
+	if (rndis_debug) \
+		pr_debug(str , ## args); \
+	} while (0)
+
 #define RNDIS_MAX_CONFIGS	1
 
 
@@ -679,7 +676,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
 #endif
 
 	default:
-		printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
+		pr_warning("%s: query unknown OID 0x%08X\n",
 			 __FUNCTION__, OID);
 	}
 	if (retval < 0)
@@ -804,7 +801,7 @@ update_linkstate:
 #endif	/* RNDIS_PM */
 
 	default:
-		printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
+		pr_warning("%s: set unknown OID 0x%08X, size %d\n",
 			 __FUNCTION__, OID, buf_len);
 	}
 
@@ -1126,8 +1123,7 @@ int rndis_msg_parser (u8 configNr, u8 *buf)
 		 * In one case those messages seemed to relate to the host
 		 * suspending itself.
 		 */
-		printk (KERN_WARNING
-			"%s: unknown RNDIS message 0x%08X len %d\n",
+		pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
 			__FUNCTION__ , MsgType, MsgLength);
 		{
 			unsigned i;

drivers/usb/gadget/s3c2410_udc.c

@@ -893,7 +893,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 /*
  *	s3c2410_udc_irq - interrupt handler
  */
-static irqreturn_t s3c2410_udc_irq(int irq, void *_dev)
+static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev)
 {
 	struct s3c2410_udc *dev = _dev;
 	int usb_status;
@@ -1016,7 +1016,7 @@ static irqreturn_t s3c2410_udc_irq(int irq, void *_dev)
 		}
 	}
 
-	dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", irq);
+	dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", IRQ_USBD);
 
 	/* Restore old index */
 	udc_write(idx, S3C2410_UDC_INDEX_REG);

drivers/usb/gadget/serial.c

@@ -89,9 +89,9 @@ static int debug = 1;
 #endif
 
 #define gs_debug(format, arg...) \
-	do { if (debug) printk(KERN_DEBUG format, ## arg); } while(0)
+	do { if (debug) pr_debug(format, ## arg); } while (0)
 #define gs_debug_level(level, format, arg...) \
-	do { if (debug>=level) printk(KERN_DEBUG format, ## arg); } while(0)
+	do { if (debug >= level) pr_debug(format, ## arg); } while (0)
 
 
 /* Thanks to NetChip Technologies for donating this product ID.
@@ -553,7 +553,8 @@ static int __init gs_module_init(void)
 
 	retval = usb_gadget_register_driver(&gs_gadget_driver);
 	if (retval) {
-		printk(KERN_ERR "gs_module_init: cannot register gadget driver, ret=%d\n", retval);
+		pr_err("gs_module_init: cannot register gadget driver, "
+			"ret=%d\n", retval);
 		return retval;
 	}
 
@@ -579,11 +580,13 @@ static int __init gs_module_init(void)
 	if (retval) {
 		usb_gadget_unregister_driver(&gs_gadget_driver);
 		put_tty_driver(gs_tty_driver);
-		printk(KERN_ERR "gs_module_init: cannot register tty driver, ret=%d\n", retval);
+		pr_err("gs_module_init: cannot register tty driver, "
+				"ret=%d\n", retval);
 		return retval;
 	}
 
-	printk(KERN_INFO "gs_module_init: %s %s loaded\n", GS_LONG_NAME, GS_VERSION_STR);
+	pr_info("gs_module_init: %s %s loaded\n",
+			GS_LONG_NAME, GS_VERSION_STR);
 	return 0;
 }
 
@@ -598,7 +601,8 @@ static void __exit gs_module_exit(void)
 	put_tty_driver(gs_tty_driver);
 	usb_gadget_unregister_driver(&gs_gadget_driver);
 
-	printk(KERN_INFO "gs_module_exit: %s %s unloaded\n", GS_LONG_NAME, GS_VERSION_STR);
+	pr_info("gs_module_exit: %s %s unloaded\n",
+			GS_LONG_NAME, GS_VERSION_STR);
 }
 
 /* TTY Driver */
@@ -621,7 +625,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	gs_debug("gs_open: (%d,%p,%p)\n", port_num, tty, file);
 
 	if (port_num < 0 || port_num >= GS_NUM_PORTS) {
-		printk(KERN_ERR "gs_open: (%d,%p,%p) invalid port number\n",
+		pr_err("gs_open: (%d,%p,%p) invalid port number\n",
 			port_num, tty, file);
 		return -ENODEV;
 	}
@@ -629,15 +633,14 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	dev = gs_device;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_open: (%d,%p,%p) NULL device pointer\n",
+		pr_err("gs_open: (%d,%p,%p) NULL device pointer\n",
 			port_num, tty, file);
 		return -ENODEV;
 	}
 
 	mtx = &gs_open_close_lock[port_num];
 	if (mutex_lock_interruptible(mtx)) {
-		printk(KERN_ERR
-		"gs_open: (%d,%p,%p) interrupted waiting for mutex\n",
+		pr_err("gs_open: (%d,%p,%p) interrupted waiting for mutex\n",
 			port_num, tty, file);
 		return -ERESTARTSYS;
 	}
@@ -645,8 +648,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	spin_lock_irqsave(&dev->dev_lock, flags);
 
 	if (dev->dev_config == GS_NO_CONFIG_ID) {
-		printk(KERN_ERR
-			"gs_open: (%d,%p,%p) device is not connected\n",
+		pr_err("gs_open: (%d,%p,%p) device is not connected\n",
 			port_num, tty, file);
 		ret = -ENODEV;
 		goto exit_unlock_dev;
@@ -655,7 +657,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	port = dev->dev_port[port_num];
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_open: (%d,%p,%p) NULL port pointer\n",
+		pr_err("gs_open: (%d,%p,%p) NULL port pointer\n",
 			port_num, tty, file);
 		ret = -ENODEV;
 		goto exit_unlock_dev;
@@ -665,7 +667,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	spin_unlock(&dev->dev_lock);
 
 	if (port->port_dev == NULL) {
-		printk(KERN_ERR "gs_open: (%d,%p,%p) port disconnected (1)\n",
+		pr_err("gs_open: (%d,%p,%p) port disconnected (1)\n",
 			port_num, tty, file);
 		ret = -EIO;
 		goto exit_unlock_port;
@@ -692,8 +694,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 
 		/* might have been disconnected while asleep, check */
 		if (port->port_dev == NULL) {
-			printk(KERN_ERR
-				"gs_open: (%d,%p,%p) port disconnected (2)\n",
+			pr_err("gs_open: (%d,%p,%p) port disconnected (2)\n",
 				port_num, tty, file);
 			port->port_in_use = 0;
 			ret = -EIO;
@@ -701,7 +702,8 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 		}
 
 		if ((port->port_write_buf=buf) == NULL) {
-			printk(KERN_ERR "gs_open: (%d,%p,%p) cannot allocate port write buffer\n",
+			pr_err("gs_open: (%d,%p,%p) cannot allocate "
+				"port write buffer\n",
 				port_num, tty, file);
 			port->port_in_use = 0;
 			ret = -ENOMEM;
@@ -714,7 +716,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 
 	/* might have been disconnected while asleep, check */
 	if (port->port_dev == NULL) {
-		printk(KERN_ERR "gs_open: (%d,%p,%p) port disconnected (3)\n",
+		pr_err("gs_open: (%d,%p,%p) port disconnected (3)\n",
 			port_num, tty, file);
 		port->port_in_use = 0;
 		ret = -EIO;
@@ -762,7 +764,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 	struct mutex *mtx;
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_close: NULL port pointer\n");
+		pr_err("gs_close: NULL port pointer\n");
 		return;
 	}
 
@@ -774,8 +776,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
 	spin_lock_irq(&port->port_lock);
 
 	if (port->port_open_count == 0) {
-		printk(KERN_ERR
-			"gs_close: (%d,%p,%p) port is already closed\n",
+		pr_err("gs_close: (%d,%p,%p) port is already closed\n",
 			port->port_num, tty, file);
 		goto exit;
 	}
@@ -837,7 +838,7 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
 	int ret;
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_write: NULL port pointer\n");
+		pr_err("gs_write: NULL port pointer\n");
 		return -EIO;
 	}
 
@@ -850,14 +851,14 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
 	spin_lock_irqsave(&port->port_lock, flags);
 
 	if (port->port_dev == NULL) {
-		printk(KERN_ERR "gs_write: (%d,%p) port is not connected\n",
+		pr_err("gs_write: (%d,%p) port is not connected\n",
 			port->port_num, tty);
 		ret = -EIO;
 		goto exit;
 	}
 
 	if (port->port_open_count == 0) {
-		printk(KERN_ERR "gs_write: (%d,%p) port is closed\n",
+		pr_err("gs_write: (%d,%p) port is closed\n",
 			port->port_num, tty);
 		ret = -EBADF;
 		goto exit;
@@ -888,7 +889,7 @@ static void gs_put_char(struct tty_struct *tty, unsigned char ch)
 	struct gs_port *port = tty->driver_data;
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_put_char: NULL port pointer\n");
+		pr_err("gs_put_char: NULL port pointer\n");
 		return;
 	}
 
@@ -898,13 +899,13 @@ static void gs_put_char(struct tty_struct *tty, unsigned char ch)
 	spin_lock_irqsave(&port->port_lock, flags);
 
 	if (port->port_dev == NULL) {
-		printk(KERN_ERR "gs_put_char: (%d,%p) port is not connected\n",
+		pr_err("gs_put_char: (%d,%p) port is not connected\n",
 			port->port_num, tty);
 		goto exit;
 	}
 
 	if (port->port_open_count == 0) {
-		printk(KERN_ERR "gs_put_char: (%d,%p) port is closed\n",
+		pr_err("gs_put_char: (%d,%p) port is closed\n",
 			port->port_num, tty);
 		goto exit;
 	}
@@ -924,7 +925,7 @@ static void gs_flush_chars(struct tty_struct *tty)
 	struct gs_port *port = tty->driver_data;
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_flush_chars: NULL port pointer\n");
+		pr_err("gs_flush_chars: NULL port pointer\n");
 		return;
 	}
 
@@ -933,14 +934,13 @@ static void gs_flush_chars(struct tty_struct *tty)
 	spin_lock_irqsave(&port->port_lock, flags);
 
 	if (port->port_dev == NULL) {
-		printk(KERN_ERR
-			"gs_flush_chars: (%d,%p) port is not connected\n",
+		pr_err("gs_flush_chars: (%d,%p) port is not connected\n",
 			port->port_num, tty);
 		goto exit;
 	}
 
 	if (port->port_open_count == 0) {
-		printk(KERN_ERR "gs_flush_chars: (%d,%p) port is closed\n",
+		pr_err("gs_flush_chars: (%d,%p) port is closed\n",
 			port->port_num, tty);
 		goto exit;
 	}
@@ -1038,7 +1038,7 @@ static int gs_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd,
 	struct gs_port *port = tty->driver_data;
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_ioctl: NULL port pointer\n");
+		pr_err("gs_ioctl: NULL port pointer\n");
 		return -EIO;
 	}
 
@@ -1076,7 +1076,7 @@ static int gs_send(struct gs_dev *dev)
 	struct gs_req_entry *req_entry;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_send: NULL device pointer\n");
+		pr_err("gs_send: NULL device pointer\n");
 		return -ENODEV;
 	}
 
@@ -1103,7 +1103,7 @@ static int gs_send(struct gs_dev *dev)
 			req->length = len;
 			spin_unlock_irqrestore(&dev->dev_lock, flags);
 			if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
-				printk(KERN_ERR
+				pr_err(
 				"gs_send: cannot queue read request, ret=%d\n",
 					ret);
 				spin_lock_irqsave(&dev->dev_lock, flags);
@@ -1144,9 +1144,7 @@ static int gs_send_packet(struct gs_dev *dev, char *packet, unsigned int size)
 	port = dev->dev_port[0];
 
 	if (port == NULL) {
-		printk(KERN_ERR
-			"gs_send_packet: port=%d, NULL port pointer\n",
-			0);
+		pr_err("gs_send_packet: port=%d, NULL port pointer\n", 0);
 		return -EIO;
 	}
 
@@ -1193,7 +1191,7 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
 	port = dev->dev_port[0];
 
 	if (port == NULL) {
-		printk(KERN_ERR "gs_recv_packet: port=%d, NULL port pointer\n",
+		pr_err("gs_recv_packet: port=%d, NULL port pointer\n",
 			port->port_num);
 		return -EIO;
 	}
@@ -1201,7 +1199,7 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
 	spin_lock(&port->port_lock);
 
 	if (port->port_open_count == 0) {
-		printk(KERN_ERR "gs_recv_packet: port=%d, port is closed\n",
+		pr_err("gs_recv_packet: port=%d, port is closed\n",
 			port->port_num);
 		ret = -EIO;
 		goto exit;
@@ -1211,14 +1209,14 @@ static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size)
 	tty = port->port_tty;
 
 	if (tty == NULL) {
-		printk(KERN_ERR "gs_recv_packet: port=%d, NULL tty pointer\n",
+		pr_err("gs_recv_packet: port=%d, NULL tty pointer\n",
 			port->port_num);
 		ret = -EIO;
 		goto exit;
 	}
 
 	if (port->port_tty->magic != TTY_MAGIC) {
-		printk(KERN_ERR "gs_recv_packet: port=%d, bad tty magic\n",
+		pr_err("gs_recv_packet: port=%d, bad tty magic\n",
 			port->port_num);
 		ret = -EIO;
 		goto exit;
@@ -1245,7 +1243,7 @@ static void gs_read_complete(struct usb_ep *ep, struct usb_request *req)
 	struct gs_dev *dev = ep->driver_data;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_read_complete: NULL device pointer\n");
+		pr_err("gs_read_complete: NULL device pointer\n");
 		return;
 	}
 
@@ -1256,7 +1254,7 @@ static void gs_read_complete(struct usb_ep *ep, struct usb_request *req)
 requeue:
 		req->length = ep->maxpacket;
 		if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
-			printk(KERN_ERR
+			pr_err(
 			"gs_read_complete: cannot queue read request, ret=%d\n",
 				ret);
 		}
@@ -1270,7 +1268,7 @@ requeue:
 
 	default:
 		/* unexpected */
-		printk(KERN_ERR
+		pr_err(
 		"gs_read_complete: unexpected status error, status=%d\n",
 			req->status);
 		goto requeue;
@@ -1287,7 +1285,7 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
 	struct gs_req_entry *gs_req = req->context;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_write_complete: NULL device pointer\n");
+		pr_err("gs_write_complete: NULL device pointer\n");
 		return;
 	}
 
@@ -1296,8 +1294,7 @@ static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
 		/* normal completion */
 requeue:
 		if (gs_req == NULL) {
-			printk(KERN_ERR
-				"gs_write_complete: NULL request pointer\n");
+			pr_err("gs_write_complete: NULL request pointer\n");
 			return;
 		}
 
@@ -1316,7 +1313,7 @@ requeue:
 		break;
 
 	default:
-		printk(KERN_ERR
+		pr_err(
 		"gs_write_complete: unexpected status error, status=%d\n",
 			req->status);
 		goto requeue;
@@ -1351,7 +1348,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
 		gs_device_desc.bcdDevice =
 				cpu_to_le16(GS_VERSION_NUM | gcnum);
 	else {
-		printk(KERN_WARNING "gs_bind: controller '%s' not recognized\n",
+		pr_warning("gs_bind: controller '%s' not recognized\n",
 			gadget->name);
 		/* unrecognized, but safe unless bulk is REALLY quirky */
 		gs_device_desc.bcdDevice =
@@ -1375,7 +1372,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
 	if (use_acm) {
 		ep = usb_ep_autoconfig(gadget, &gs_fullspeed_notify_desc);
 		if (!ep) {
-			printk(KERN_ERR "gs_bind: cannot run ACM on %s\n", gadget->name);
+			pr_err("gs_bind: cannot run ACM on %s\n", gadget->name);
 			goto autoconf_fail;
 		}
 		gs_device_desc.idProduct = __constant_cpu_to_le16(
@@ -1425,7 +1422,7 @@ static int __init gs_bind(struct usb_gadget *gadget)
 	set_gadget_data(gadget, dev);
 
 	if ((ret=gs_alloc_ports(dev, GFP_KERNEL)) != 0) {
-		printk(KERN_ERR "gs_bind: cannot allocate ports\n");
+		pr_err("gs_bind: cannot allocate ports\n");
 		gs_unbind(gadget);
 		return ret;
 	}
@@ -1441,13 +1438,13 @@ static int __init gs_bind(struct usb_gadget *gadget)
 
 	gadget->ep0->driver_data = dev;
 
-	printk(KERN_INFO "gs_bind: %s %s bound\n",
+	pr_info("gs_bind: %s %s bound\n",
 		GS_LONG_NAME, GS_VERSION_STR);
 
 	return 0;
 
 autoconf_fail:
-	printk(KERN_ERR "gs_bind: cannot autoconfigure on %s\n", gadget->name);
+	pr_err("gs_bind: cannot autoconfigure on %s\n", gadget->name);
 	return -ENODEV;
 }
 
@@ -1480,7 +1477,7 @@ static void /* __init_or_exit */ gs_unbind(struct usb_gadget *gadget)
 		set_gadget_data(gadget, NULL);
 	}
 
-	printk(KERN_INFO "gs_unbind: %s %s unbound\n", GS_LONG_NAME,
+	pr_info("gs_unbind: %s %s unbound\n", GS_LONG_NAME,
 		GS_VERSION_STR);
 }
 
@@ -1513,7 +1510,8 @@ static int gs_setup(struct usb_gadget *gadget,
 		break;
 
 	default:
-		printk(KERN_ERR "gs_setup: unknown request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
+		pr_err("gs_setup: unknown request, type=%02x, request=%02x, "
+			"value=%04x, index=%04x, length=%d\n",
 			ctrl->bRequestType, ctrl->bRequest,
 			wValue, wIndex, wLength);
 		break;
@@ -1526,7 +1524,7 @@ static int gs_setup(struct usb_gadget *gadget,
 				&& (ret % gadget->ep0->maxpacket) == 0;
 		ret = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
 		if (ret < 0) {
-			printk(KERN_ERR "gs_setup: cannot queue response, ret=%d\n",
+			pr_err("gs_setup: cannot queue response, ret=%d\n",
 				ret);
 			req->status = 0;
 			gs_setup_complete(gadget->ep0, req);
@@ -1656,7 +1654,8 @@ set_interface_done:
 		break;
 
 	default:
-		printk(KERN_ERR "gs_setup: unknown standard request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
+		pr_err("gs_setup: unknown standard request, type=%02x, "
+			"request=%02x, value=%04x, index=%04x, length=%d\n",
 			ctrl->bRequestType, ctrl->bRequest,
 			wValue, wIndex, wLength);
 		break;
@@ -1682,7 +1681,7 @@ static int gs_setup_class(struct usb_gadget *gadget,
 		 * handler copy that data to port->port_line_coding (iff
 		 * it's valid) and maybe pass it on.  Until then, fail.
 		 */
-		printk(KERN_WARNING "gs_setup: set_line_coding "
+		pr_warning("gs_setup: set_line_coding "
 				"unuspported\n");
 		break;
 
@@ -1702,12 +1701,12 @@ static int gs_setup_class(struct usb_gadget *gadget,
 		 * handler use that to set the state (iff it's valid) and
 		 * maybe pass it on.  Until then, fail.
 		 */
-		printk(KERN_WARNING "gs_setup: set_control_line_state "
+		pr_warning("gs_setup: set_control_line_state "
 				"unuspported\n");
 		break;
 
 	default:
-		printk(KERN_ERR "gs_setup: unknown class request, "
+		pr_err("gs_setup: unknown class request, "
 				"type=%02x, request=%02x, value=%04x, "
 				"index=%04x, length=%d\n",
 			ctrl->bRequestType, ctrl->bRequest,
@@ -1724,7 +1723,8 @@ static int gs_setup_class(struct usb_gadget *gadget,
 static void gs_setup_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	if (req->status || req->actual != req->length) {
-		printk(KERN_ERR "gs_setup_complete: status error, status=%d, actual=%d, length=%d\n",
+		pr_err("gs_setup_complete: status error, status=%d, "
+			"actual=%d, length=%d\n",
 			req->status, req->actual, req->length);
 	}
 }
@@ -1751,11 +1751,11 @@ static void gs_disconnect(struct usb_gadget *gadget)
 
 	/* re-allocate ports for the next connection */
 	if (gs_alloc_ports(dev, GFP_ATOMIC) != 0)
-		printk(KERN_ERR "gs_disconnect: cannot re-allocate ports\n");
+		pr_err("gs_disconnect: cannot re-allocate ports\n");
 
 	spin_unlock_irqrestore(&dev->dev_lock, flags);
 
-	printk(KERN_INFO "gs_disconnect: %s disconnected\n", GS_LONG_NAME);
+	pr_info("gs_disconnect: %s disconnected\n", GS_LONG_NAME);
 }
 
 /*
@@ -1778,7 +1778,7 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 	struct gs_req_entry *req_entry;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_set_config: NULL device pointer\n");
+		pr_err("gs_set_config: NULL device pointer\n");
 		return 0;
 	}
 
@@ -1823,7 +1823,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 				dev->dev_notify_ep = ep;
 				dev->dev_notify_ep_desc = ep_desc;
 			} else {
-				printk(KERN_ERR "gs_set_config: cannot enable notify endpoint %s, ret=%d\n",
+				pr_err("gs_set_config: cannot enable NOTIFY "
+					"endpoint %s, ret=%d\n",
 					ep->name, ret);
 				goto exit_reset_config;
 			}
@@ -1839,7 +1840,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 				dev->dev_in_ep = ep;
 				dev->dev_in_ep_desc = ep_desc;
 			} else {
-				printk(KERN_ERR "gs_set_config: cannot enable in endpoint %s, ret=%d\n",
+				pr_err("gs_set_config: cannot enable IN "
+					"endpoint %s, ret=%d\n",
 					ep->name, ret);
 				goto exit_reset_config;
 			}
@@ -1855,7 +1857,8 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 				dev->dev_out_ep = ep;
 				dev->dev_out_ep_desc = ep_desc;
 			} else {
-				printk(KERN_ERR "gs_set_config: cannot enable out endpoint %s, ret=%d\n",
+				pr_err("gs_set_config: cannot enable OUT "
+					"endpoint %s, ret=%d\n",
 					ep->name, ret);
 				goto exit_reset_config;
 			}
@@ -1865,7 +1868,7 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 
 	if (dev->dev_in_ep == NULL || dev->dev_out_ep == NULL
 	|| (config != GS_BULK_CONFIG_ID && dev->dev_notify_ep == NULL)) {
-		printk(KERN_ERR "gs_set_config: cannot find endpoints\n");
+		pr_err("gs_set_config: cannot find endpoints\n");
 		ret = -ENODEV;
 		goto exit_reset_config;
 	}
@@ -1876,11 +1879,12 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 		if ((req=gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC))) {
 			req->complete = gs_read_complete;
 			if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) {
-				printk(KERN_ERR "gs_set_config: cannot queue read request, ret=%d\n",
-					ret);
+				pr_err("gs_set_config: cannot queue read "
+					"request, ret=%d\n", ret);
 			}
 		} else {
-			printk(KERN_ERR "gs_set_config: cannot allocate read requests\n");
+			pr_err("gs_set_config: cannot allocate "
+					"read requests\n");
 			ret = -ENOMEM;
 			goto exit_reset_config;
 		}
@@ -1893,13 +1897,14 @@ static int gs_set_config(struct gs_dev *dev, unsigned config)
 			req_entry->re_req->complete = gs_write_complete;
 			list_add(&req_entry->re_entry, &dev->dev_req_list);
 		} else {
-			printk(KERN_ERR "gs_set_config: cannot allocate write requests\n");
+			pr_err("gs_set_config: cannot allocate "
+					"write requests\n");
 			ret = -ENOMEM;
 			goto exit_reset_config;
 		}
 	}
 
-	printk(KERN_INFO "gs_set_config: %s configured, %s speed %s config\n",
+	pr_info("gs_set_config: %s configured, %s speed %s config\n",
 		GS_LONG_NAME,
 		gadget->speed == USB_SPEED_HIGH ? "high" : "full",
 		config == GS_BULK_CONFIG_ID ? "BULK" : "CDC-ACM");
@@ -1926,7 +1931,7 @@ static void gs_reset_config(struct gs_dev *dev)
 	struct gs_req_entry *req_entry;
 
 	if (dev == NULL) {
-		printk(KERN_ERR "gs_reset_config: NULL device pointer\n");
+		pr_err("gs_reset_config: NULL device pointer\n");
 		return;
 	}
 

drivers/usb/gadget/zero.c

@@ -1115,7 +1115,7 @@ zero_bind (struct usb_gadget *gadget)
 	ep = usb_ep_autoconfig (gadget, &fs_source_desc);
 	if (!ep) {
 autoconf_fail:
-		printk (KERN_ERR "%s: can't autoconfigure on %s\n",
+		pr_err("%s: can't autoconfigure on %s\n",
 			shortname, gadget->name);
 		return -ENODEV;
 	}
@@ -1139,7 +1139,7 @@ autoconf_fail:
 		 * things like configuration and altsetting numbering
 		 * can need hardware-specific attention though.
 		 */
-		printk (KERN_WARNING "%s: controller '%s' not recognized\n",
+		pr_warning("%s: controller '%s' not recognized\n",
 			shortname, gadget->name);
 		device_desc.bcdDevice = __constant_cpu_to_le16 (0x9999);
 	}

drivers/usb/host/Kconfig

@@ -29,15 +29,6 @@ config USB_EHCI_HCD
 	  To compile this driver as a module, choose M here: the
 	  module will be called ehci-hcd.
 
-config USB_EHCI_SPLIT_ISO
-	bool "Full speed ISO transactions (EXPERIMENTAL)"
-	depends on USB_EHCI_HCD && EXPERIMENTAL
-	default n
-	---help---
-	  This code is new and hasn't been used with many different
-	  EHCI or USB 2.0 transaction translator implementations.
-	  It should work for ISO-OUT transfers, like audio.
-
 config USB_EHCI_ROOT_HUB_TT
 	bool "Root Hub Transaction Translators (EXPERIMENTAL)"
 	depends on USB_EHCI_HCD && EXPERIMENTAL
@@ -69,21 +60,30 @@ config USB_EHCI_TT_NEWSCHED
 
 config USB_EHCI_BIG_ENDIAN_MMIO
 	bool
-	depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX)
+	depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX)
 	default y
 
 config USB_EHCI_BIG_ENDIAN_DESC
 	bool
-	depends on USB_EHCI_HCD && 440EPX
+	depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX)
 	default y
 
 config USB_EHCI_FSL
 	bool
+	depends on USB_EHCI_HCD
 	select USB_EHCI_ROOT_HUB_TT
 	default y if MPC834x || PPC_MPC831x
 	---help---
 	  Variation of ARC USB block used in some Freescale chips.
 
+config USB_EHCI_HCD_PPC_OF
+	bool "EHCI support for PPC USB controller on OF platform bus"
+	depends on USB_EHCI_HCD && PPC_OF
+	default y
+	---help---
+	  Enables support for the USB controller present on the PowerPC
+	  OpenFirmware platform bus.
+
 config USB_ISP116X_HCD
 	tristate "ISP116X HCD support"
 	depends on USB

drivers/usb/host/ehci-au1xxx.c

@@ -222,6 +222,7 @@ static const struct hc_driver ehci_au1xxx_hc_driver = {
 	.hub_control = ehci_hub_control,
 	.bus_suspend = ehci_bus_suspend,
 	.bus_resume = ehci_bus_resume,
+	.relinquish_port = ehci_relinquish_port,
 };
 
 /*-------------------------------------------------------------------------*/

drivers/usb/host/ehci-dbg.c

@@ -323,7 +323,43 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { }
 
 #else
 
-/* troubleshooting help: expose state in sysfs */
+/* troubleshooting help: expose state in debugfs */
+
+static int debug_async_open(struct inode *, struct file *);
+static int debug_periodic_open(struct inode *, struct file *);
+static int debug_registers_open(struct inode *, struct file *);
+static int debug_async_open(struct inode *, struct file *);
+static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
+static int debug_close(struct inode *, struct file *);
+
+static const struct file_operations debug_async_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_async_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+static const struct file_operations debug_periodic_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_periodic_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+static const struct file_operations debug_registers_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_registers_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+
+static struct dentry *ehci_debug_root;
+
+struct debug_buffer {
+	ssize_t (*fill_func)(struct debug_buffer *);	/* fill method */
+	struct usb_bus *bus;
+	struct mutex mutex;	/* protect filling of buffer */
+	size_t count;		/* number of characters filled into buffer */
+	char *page;
+};
 
 #define speed_char(info1) ({ char tmp; \
 		switch (info1 & (3 << 12)) { \
@@ -441,10 +477,8 @@ done:
 	*nextp = next;
 }
 
-static ssize_t
-show_async (struct class_device *class_dev, char *buf)
+static ssize_t fill_async_buffer(struct debug_buffer *buf)
 {
-	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
 	struct ehci_hcd		*ehci;
 	unsigned long		flags;
@@ -452,14 +486,13 @@ show_async (struct class_device *class_dev, char *buf)
 	char			*next;
 	struct ehci_qh		*qh;
 
-	*buf = 0;
-
-	bus = class_get_devdata(class_dev);
-	hcd = bus_to_hcd(bus);
+	hcd = bus_to_hcd(buf->bus);
 	ehci = hcd_to_ehci (hcd);
-	next = buf;
+	next = buf->page;
 	size = PAGE_SIZE;
 
+	*next = 0;
+
 	/* dumps a snapshot of the async schedule.
 	 * usually empty except for long-term bulk reads, or head.
 	 * one QH per line, and TDs we know about
@@ -477,16 +510,12 @@ show_async (struct class_device *class_dev, char *buf)
 	}
 	spin_unlock_irqrestore (&ehci->lock, flags);
 
-	return strlen (buf);
+	return strlen(buf->page);
 }
-static CLASS_DEVICE_ATTR (async, S_IRUGO, show_async, NULL);
 
 #define DBG_SCHED_LIMIT 64
-
-static ssize_t
-show_periodic (struct class_device *class_dev, char *buf)
+static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 {
-	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
 	struct ehci_hcd		*ehci;
 	unsigned long		flags;
@@ -500,10 +529,9 @@ show_periodic (struct class_device *class_dev, char *buf)
 		return 0;
 	seen_count = 0;
 
-	bus = class_get_devdata(class_dev);
-	hcd = bus_to_hcd(bus);
+	hcd = bus_to_hcd(buf->bus);
 	ehci = hcd_to_ehci (hcd);
-	next = buf;
+	next = buf->page;
 	size = PAGE_SIZE;
 
 	temp = scnprintf (next, size, "size = %d\n", ehci->periodic_size);
@@ -623,14 +651,10 @@ show_periodic (struct class_device *class_dev, char *buf)
 
 	return PAGE_SIZE - size;
 }
-static CLASS_DEVICE_ATTR (periodic, S_IRUGO, show_periodic, NULL);
-
 #undef DBG_SCHED_LIMIT
 
-static ssize_t
-show_registers (struct class_device *class_dev, char *buf)
+static ssize_t fill_registers_buffer(struct debug_buffer *buf)
 {
-	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
 	struct ehci_hcd		*ehci;
 	unsigned long		flags;
@@ -639,15 +663,14 @@ show_registers (struct class_device *class_dev, char *buf)
 	static char		fmt [] = "%*s\n";
 	static char		label [] = "";
 
-	bus = class_get_devdata(class_dev);
-	hcd = bus_to_hcd(bus);
+	hcd = bus_to_hcd(buf->bus);
 	ehci = hcd_to_ehci (hcd);
-	next = buf;
+	next = buf->page;
 	size = PAGE_SIZE;
 
 	spin_lock_irqsave (&ehci->lock, flags);
 
-	if (bus->controller->power.power_state.event) {
+	if (buf->bus->controller->power.power_state.event) {
 		size = scnprintf (next, size,
 			"bus %s, device %s (driver " DRIVER_VERSION ")\n"
 			"%s\n"
@@ -763,9 +786,7 @@ show_registers (struct class_device *class_dev, char *buf)
 	}
 
 	if (ehci->reclaim) {
-		temp = scnprintf (next, size, "reclaim qh %p%s\n",
-				ehci->reclaim,
-				ehci->reclaim_ready ? " ready" : "");
+		temp = scnprintf(next, size, "reclaim qh %p\n", ehci->reclaim);
 		size -= temp;
 		next += temp;
 	}
@@ -789,26 +810,150 @@ done:
 
 	return PAGE_SIZE - size;
 }
-static CLASS_DEVICE_ATTR (registers, S_IRUGO, show_registers, NULL);
 
-static inline void create_debug_files (struct ehci_hcd *ehci)
+static struct debug_buffer *alloc_buffer(struct usb_bus *bus,
+				ssize_t (*fill_func)(struct debug_buffer *))
 {
-	struct class_device *cldev = ehci_to_hcd(ehci)->self.class_dev;
-	int retval;
+	struct debug_buffer *buf;
+
+	buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
 
-	retval = class_device_create_file(cldev, &class_device_attr_async);
-	retval = class_device_create_file(cldev, &class_device_attr_periodic);
-	retval = class_device_create_file(cldev, &class_device_attr_registers);
+	if (buf) {
+		buf->bus = bus;
+		buf->fill_func = fill_func;
+		mutex_init(&buf->mutex);
+	}
+
+	return buf;
 }
 
-static inline void remove_debug_files (struct ehci_hcd *ehci)
+static int fill_buffer(struct debug_buffer *buf)
 {
-	struct class_device *cldev = ehci_to_hcd(ehci)->self.class_dev;
+	int ret = 0;
+
+	if (!buf->page)
+		buf->page = (char *)get_zeroed_page(GFP_KERNEL);
+
+	if (!buf->page) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = buf->fill_func(buf);
 
-	class_device_remove_file(cldev, &class_device_attr_async);
-	class_device_remove_file(cldev, &class_device_attr_periodic);
-	class_device_remove_file(cldev, &class_device_attr_registers);
+	if (ret >= 0) {
+		buf->count = ret;
+		ret = 0;
+	}
+
+out:
+	return ret;
 }
 
-#endif /* STUB_DEBUG_FILES */
+static ssize_t debug_output(struct file *file, char __user *user_buf,
+			    size_t len, loff_t *offset)
+{
+	struct debug_buffer *buf = file->private_data;
+	int ret = 0;
+
+	mutex_lock(&buf->mutex);
+	if (buf->count == 0) {
+		ret = fill_buffer(buf);
+		if (ret != 0) {
+			mutex_unlock(&buf->mutex);
+			goto out;
+		}
+	}
+	mutex_unlock(&buf->mutex);
+
+	ret = simple_read_from_buffer(user_buf, len, offset,
+				      buf->page, buf->count);
+
+out:
+	return ret;
+
+}
+
+static int debug_close(struct inode *inode, struct file *file)
+{
+	struct debug_buffer *buf = file->private_data;
 
+	if (buf) {
+		if (buf->page)
+			free_page((unsigned long)buf->page);
+		kfree(buf);
+	}
+
+	return 0;
+}
+static int debug_async_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_periodic_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private,
+					  fill_periodic_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_registers_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private,
+					  fill_registers_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+static inline void create_debug_files (struct ehci_hcd *ehci)
+{
+	struct usb_bus *bus = &ehci_to_hcd(ehci)->self;
+
+	ehci->debug_dir = debugfs_create_dir(bus->bus_name, ehci_debug_root);
+	if (!ehci->debug_dir)
+		goto dir_error;
+
+	ehci->debug_async = debugfs_create_file("async", S_IRUGO,
+						ehci->debug_dir, bus,
+						&debug_async_fops);
+	if (!ehci->debug_async)
+		goto async_error;
+
+	ehci->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
+						   ehci->debug_dir, bus,
+						   &debug_periodic_fops);
+	if (!ehci->debug_periodic)
+		goto periodic_error;
+
+	ehci->debug_registers = debugfs_create_file("registers", S_IRUGO,
+						    ehci->debug_dir, bus,
+						    &debug_registers_fops);
+	if (!ehci->debug_registers)
+		goto registers_error;
+	return;
+
+registers_error:
+	debugfs_remove(ehci->debug_periodic);
+periodic_error:
+	debugfs_remove(ehci->debug_async);
+async_error:
+	debugfs_remove(ehci->debug_dir);
+dir_error:
+	ehci->debug_periodic = NULL;
+	ehci->debug_async = NULL;
+	ehci->debug_dir = NULL;
+}
+
+static inline void remove_debug_files (struct ehci_hcd *ehci)
+{
+	debugfs_remove(ehci->debug_registers);
+	debugfs_remove(ehci->debug_periodic);
+	debugfs_remove(ehci->debug_async);
+	debugfs_remove(ehci->debug_dir);
+}
+
+#endif /* STUB_DEBUG_FILES */

drivers/usb/host/ehci-fsl.c

@@ -25,7 +25,7 @@
 
 #include "ehci-fsl.h"
 
-/* FIXME: Power Managment is un-ported so temporarily disable it */
+/* FIXME: Power Management is un-ported so temporarily disable it */
 #undef CONFIG_PM
 
 /* PCI-based HCs are common, but plenty of non-PCI HCs are used too */
@@ -323,6 +323,7 @@ static const struct hc_driver ehci_fsl_hc_driver = {
 	.hub_control = ehci_hub_control,
 	.bus_suspend = ehci_bus_suspend,
 	.bus_resume = ehci_bus_resume,
+	.relinquish_port = ehci_relinquish_port,
 };
 
 static int ehci_fsl_drv_probe(struct platform_device *pdev)

drivers/usb/host/ehci-hcd.c

@@ -33,6 +33,7 @@
 #include <linux/usb.h>
 #include <linux/moduleparam.h>
 #include <linux/dma-mapping.h>
+#include <linux/debugfs.h>
 
 #include "../core/hcd.h"
 
@@ -109,7 +110,7 @@ static const char	hcd_name [] = "ehci_hcd";
 #define	EHCI_TUNE_MULT_TT	1
 #define	EHCI_TUNE_FLS		2	/* (small) 256 frame schedule */
 
-#define EHCI_IAA_JIFFIES	(HZ/100)	/* arbitrary; ~10 msec */
+#define EHCI_IAA_MSECS		10		/* arbitrary */
 #define EHCI_IO_JIFFIES		(HZ/10)		/* io watchdog > irq_thresh */
 #define EHCI_ASYNC_JIFFIES	(HZ/20)		/* async idle timeout */
 #define EHCI_SHRINK_JIFFIES	(HZ/200)	/* async qh unlink delay */
@@ -266,6 +267,7 @@ static void ehci_quiesce (struct ehci_hcd *ehci)
 
 /*-------------------------------------------------------------------------*/
 
+static void end_unlink_async(struct ehci_hcd *ehci);
 static void ehci_work(struct ehci_hcd *ehci);
 
 #include "ehci-hub.c"
@@ -275,25 +277,41 @@ static void ehci_work(struct ehci_hcd *ehci);
 
 /*-------------------------------------------------------------------------*/
 
-static void ehci_watchdog (unsigned long param)
+static void ehci_iaa_watchdog(unsigned long param)
 {
 	struct ehci_hcd		*ehci = (struct ehci_hcd *) param;
 	unsigned long		flags;
+	u32			status, cmd;
 
 	spin_lock_irqsave (&ehci->lock, flags);
+	WARN_ON(!ehci->reclaim);
 
-	/* lost IAA irqs wedge things badly; seen with a vt8235 */
+	status = ehci_readl(ehci, &ehci->regs->status);
+	cmd = ehci_readl(ehci, &ehci->regs->command);
+	ehci_dbg(ehci, "IAA watchdog: status %x cmd %x\n", status, cmd);
+
+	/* lost IAA irqs wedge things badly; seen first with a vt8235 */
 	if (ehci->reclaim) {
-		u32		status = ehci_readl(ehci, &ehci->regs->status);
 		if (status & STS_IAA) {
 			ehci_vdbg (ehci, "lost IAA\n");
 			COUNT (ehci->stats.lost_iaa);
 			ehci_writel(ehci, STS_IAA, &ehci->regs->status);
-			ehci->reclaim_ready = 1;
 		}
+		ehci_writel(ehci, cmd & ~CMD_IAAD, &ehci->regs->command);
+		end_unlink_async(ehci);
 	}
 
- 	/* stop async processing after it's idled a bit */
+	spin_unlock_irqrestore(&ehci->lock, flags);
+}
+
+static void ehci_watchdog(unsigned long param)
+{
+	struct ehci_hcd		*ehci = (struct ehci_hcd *) param;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&ehci->lock, flags);
+
+	/* stop async processing after it's idled a bit */
 	if (test_bit (TIMER_ASYNC_OFF, &ehci->actions))
 		start_unlink_async (ehci, ehci->async);
 
@@ -363,8 +381,6 @@ static void ehci_port_power (struct ehci_hcd *ehci, int is_on)
 static void ehci_work (struct ehci_hcd *ehci)
 {
 	timer_action_done (ehci, TIMER_IO_WATCHDOG);
-	if (ehci->reclaim_ready)
-		end_unlink_async (ehci);
 
 	/* another CPU may drop ehci->lock during a schedule scan while
 	 * it reports urb completions.  this flag guards against bogus
@@ -399,6 +415,7 @@ static void ehci_stop (struct usb_hcd *hcd)
 
 	/* no more interrupts ... */
 	del_timer_sync (&ehci->watchdog);
+	del_timer_sync(&ehci->iaa_watchdog);
 
 	spin_lock_irq(&ehci->lock);
 	if (HC_IS_RUNNING (hcd->state))
@@ -447,6 +464,10 @@ static int ehci_init(struct usb_hcd *hcd)
 	ehci->watchdog.function = ehci_watchdog;
 	ehci->watchdog.data = (unsigned long) ehci;
 
+	init_timer(&ehci->iaa_watchdog);
+	ehci->iaa_watchdog.function = ehci_iaa_watchdog;
+	ehci->iaa_watchdog.data = (unsigned long) ehci;
+
 	/*
 	 * hw default: 1K periodic list heads, one per frame.
 	 * periodic_size can shrink by USBCMD update if hcc_params allows.
@@ -463,7 +484,6 @@ static int ehci_init(struct usb_hcd *hcd)
 		ehci->i_thresh = 2 + HCC_ISOC_THRES(hcc_params);
 
 	ehci->reclaim = NULL;
-	ehci->reclaim_ready = 0;
 	ehci->next_uframe = -1;
 
 	/*
@@ -654,8 +674,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 	/* complete the unlinking of some qh [4.15.2.3] */
 	if (status & STS_IAA) {
 		COUNT (ehci->stats.reclaim);
-		ehci->reclaim_ready = 1;
-		bh = 1;
+		end_unlink_async(ehci);
 	}
 
 	/* remote wakeup [4.3.1] */
@@ -761,10 +780,16 @@ static int ehci_urb_enqueue (
 
 static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 {
-	/* if we need to use IAA and it's busy, defer */
-	if (qh->qh_state == QH_STATE_LINKED
-			&& ehci->reclaim
-			&& HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) {
+	/* failfast */
+	if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state))
+		end_unlink_async(ehci);
+
+	/* if it's not linked then there's nothing to do */
+	if (qh->qh_state != QH_STATE_LINKED)
+		;
+
+	/* defer till later if busy */
+	else if (ehci->reclaim) {
 		struct ehci_qh		*last;
 
 		for (last = ehci->reclaim;
@@ -774,12 +799,8 @@ static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 		qh->qh_state = QH_STATE_UNLINK_WAIT;
 		last->reclaim = qh;
 
-	/* bypass IAA if the hc can't care */
-	} else if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state) && ehci->reclaim)
-		end_unlink_async (ehci);
-
-	/* something else might have unlinked the qh by now */
-	if (qh->qh_state == QH_STATE_LINKED)
+	/* start IAA cycle */
+	} else
 		start_unlink_async (ehci, qh);
 }
 
@@ -806,7 +827,19 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 		qh = (struct ehci_qh *) urb->hcpriv;
 		if (!qh)
 			break;
-		unlink_async (ehci, qh);
+		switch (qh->qh_state) {
+		case QH_STATE_LINKED:
+		case QH_STATE_COMPLETING:
+			unlink_async(ehci, qh);
+			break;
+		case QH_STATE_UNLINK:
+		case QH_STATE_UNLINK_WAIT:
+			/* already started */
+			break;
+		case QH_STATE_IDLE:
+			WARN_ON(1);
+			break;
+		}
 		break;
 
 	case PIPE_INTERRUPT:
@@ -829,16 +862,16 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 		/* reschedule QH iff another request is queued */
 		if (!list_empty (&qh->qtd_list)
 				&& HC_IS_RUNNING (hcd->state)) {
-			int status;
+			int schedule_status;
 
-			status = qh_schedule (ehci, qh);
+			schedule_status = qh_schedule (ehci, qh);
 			spin_unlock_irqrestore (&ehci->lock, flags);
 
-			if (status != 0) {
+			if (schedule_status != 0) {
 				// shouldn't happen often, but ...
 				// FIXME kill those tds' urbs
 				err ("can't reschedule qh %p, err %d",
-					qh, status);
+					qh, schedule_status);
 			}
 			return status;
 		}
@@ -898,6 +931,7 @@ rescan:
 		unlink_async (ehci, qh);
 		/* FALL THROUGH */
 	case QH_STATE_UNLINK:		/* wait for hw to finish? */
+	case QH_STATE_UNLINK_WAIT:
 idle_timeout:
 		spin_unlock_irqrestore (&ehci->lock, flags);
 		schedule_timeout_uninterruptible(1);
@@ -959,11 +993,26 @@ MODULE_LICENSE ("GPL");
 #define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_driver
 #endif
 
-#ifdef CONFIG_440EPX
+#if defined(CONFIG_440EPX) && !defined(CONFIG_PPC_MERGE)
 #include "ehci-ppc-soc.c"
 #define	PLATFORM_DRIVER		ehci_ppc_soc_driver
 #endif
 
+#ifdef CONFIG_USB_EHCI_HCD_PPC_OF
+#include "ehci-ppc-of.c"
+#define OF_PLATFORM_DRIVER	ehci_hcd_ppc_of_driver
+#endif
+
+#ifdef CONFIG_ARCH_ORION
+#include "ehci-orion.c"
+#define	PLATFORM_DRIVER		ehci_orion_driver
+#endif
+
+#ifdef CONFIG_ARCH_IXP4XX
+#include "ehci-ixp4xx.c"
+#define	PLATFORM_DRIVER		ixp4xx_ehci_driver
+#endif
+
 #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
     !defined(PS3_SYSTEM_BUS_DRIVER)
 #error "missing bus glue for ehci-hcd"
@@ -978,41 +1027,66 @@ static int __init ehci_hcd_init(void)
 		 sizeof(struct ehci_qh), sizeof(struct ehci_qtd),
 		 sizeof(struct ehci_itd), sizeof(struct ehci_sitd));
 
+#ifdef DEBUG
+	ehci_debug_root = debugfs_create_dir("ehci", NULL);
+	if (!ehci_debug_root)
+		return -ENOENT;
+#endif
+
 #ifdef PLATFORM_DRIVER
 	retval = platform_driver_register(&PLATFORM_DRIVER);
 	if (retval < 0)
-		return retval;
+		goto clean0;
 #endif
 
 #ifdef PCI_DRIVER
 	retval = pci_register_driver(&PCI_DRIVER);
-	if (retval < 0) {
-#ifdef PLATFORM_DRIVER
-		platform_driver_unregister(&PLATFORM_DRIVER);
-#endif
-		return retval;
-	}
+	if (retval < 0)
+		goto clean1;
 #endif
 
 #ifdef PS3_SYSTEM_BUS_DRIVER
 	retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
-	if (retval < 0) {
-#ifdef PLATFORM_DRIVER
-		platform_driver_unregister(&PLATFORM_DRIVER);
+	if (retval < 0)
+		goto clean2;
+#endif
+
+#ifdef OF_PLATFORM_DRIVER
+	retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
+	if (retval < 0)
+		goto clean3;
+#endif
+	return retval;
+
+#ifdef OF_PLATFORM_DRIVER
+	/* of_unregister_platform_driver(&OF_PLATFORM_DRIVER); */
+clean3:
+#endif
+#ifdef PS3_SYSTEM_BUS_DRIVER
+	ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+clean2:
 #endif
 #ifdef PCI_DRIVER
-		pci_unregister_driver(&PCI_DRIVER);
+	pci_unregister_driver(&PCI_DRIVER);
+clean1:
 #endif
-		return retval;
-	}
+#ifdef PLATFORM_DRIVER
+	platform_driver_unregister(&PLATFORM_DRIVER);
+clean0:
+#endif
+#ifdef DEBUG
+	debugfs_remove(ehci_debug_root);
+	ehci_debug_root = NULL;
 #endif
-
 	return retval;
 }
 module_init(ehci_hcd_init);
 
 static void __exit ehci_hcd_cleanup(void)
 {
+#ifdef OF_PLATFORM_DRIVER
+	of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
@@ -1022,6 +1096,9 @@ static void __exit ehci_hcd_cleanup(void)
 #ifdef PS3_SYSTEM_BUS_DRIVER
 	ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
+#ifdef DEBUG
+	debugfs_remove(ehci_debug_root);
+#endif
 }
 module_exit(ehci_hcd_cleanup);
 

drivers/usb/host/ehci-hub.c

@@ -123,6 +123,8 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
 
 	if (time_before (jiffies, ehci->next_statechange))
 		msleep(5);
+	del_timer_sync(&ehci->watchdog);
+	del_timer_sync(&ehci->iaa_watchdog);
 
 	port = HCS_N_PORTS (ehci->hcs_params);
 	spin_lock_irq (&ehci->lock);
@@ -134,7 +136,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
 	}
 	ehci->command = ehci_readl(ehci, &ehci->regs->command);
 	if (ehci->reclaim)
-		ehci->reclaim_ready = 1;
+		end_unlink_async(ehci);
 	ehci_work(ehci);
 
 	/* Unlike other USB host controller types, EHCI doesn't have
@@ -170,8 +172,11 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
 		}
 	}
 
+	/* Apparently some devices need a >= 1-uframe delay here */
+	if (ehci->bus_suspended)
+		udelay(150);
+
 	/* turn off now-idle HC */
-	del_timer_sync (&ehci->watchdog);
 	ehci_halt (ehci);
 	hcd->state = HC_STATE_SUSPENDED;
 
@@ -291,14 +296,16 @@ static int ehci_bus_resume (struct usb_hcd *hcd)
 /*-------------------------------------------------------------------------*/
 
 /* Display the ports dedicated to the companion controller */
-static ssize_t show_companion(struct class_device *class_dev, char *buf)
+static ssize_t show_companion(struct device *dev,
+			      struct device_attribute *attr,
+			      char *buf)
 {
 	struct ehci_hcd		*ehci;
 	int			nports, index, n;
 	int			count = PAGE_SIZE;
 	char			*ptr = buf;
 
-	ehci = hcd_to_ehci(bus_to_hcd(class_get_devdata(class_dev)));
+	ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
 	nports = HCS_N_PORTS(ehci->hcs_params);
 
 	for (index = 0; index < nports; ++index) {
@@ -312,40 +319,21 @@ static ssize_t show_companion(struct class_device *class_dev, char *buf)
 }
 
 /*
- * Dedicate or undedicate a port to the companion controller.
- * Syntax is "[-]portnum", where a leading '-' sign means
- * return control of the port to the EHCI controller.
+ * Sets the owner of a port
  */
-static ssize_t store_companion(struct class_device *class_dev,
-		const char *buf, size_t count)
+static void set_owner(struct ehci_hcd *ehci, int portnum, int new_owner)
 {
-	struct ehci_hcd		*ehci;
-	int			portnum, new_owner, try;
 	u32 __iomem		*status_reg;
 	u32			port_status;
+	int 			try;
 
-	ehci = hcd_to_ehci(bus_to_hcd(class_get_devdata(class_dev)));
-	new_owner = PORT_OWNER;		/* Owned by companion */
-	if (sscanf(buf, "%d", &portnum) != 1)
-		return -EINVAL;
-	if (portnum < 0) {
-		portnum = - portnum;
-		new_owner = 0;		/* Owned by EHCI */
-	}
-	if (portnum <= 0 || portnum > HCS_N_PORTS(ehci->hcs_params))
-		return -ENOENT;
-	status_reg = &ehci->regs->port_status[--portnum];
-	if (new_owner)
-		set_bit(portnum, &ehci->companion_ports);
-	else
-		clear_bit(portnum, &ehci->companion_ports);
+	status_reg = &ehci->regs->port_status[portnum];
 
 	/*
 	 * The controller won't set the OWNER bit if the port is
 	 * enabled, so this loop will sometimes require at least two
 	 * iterations: one to disable the port and one to set OWNER.
 	 */
-
 	for (try = 4; try > 0; --try) {
 		spin_lock_irq(&ehci->lock);
 		port_status = ehci_readl(ehci, status_reg);
@@ -362,9 +350,39 @@ static ssize_t store_companion(struct class_device *class_dev,
 		if (try > 1)
 			msleep(5);
 	}
+}
+
+/*
+ * Dedicate or undedicate a port to the companion controller.
+ * Syntax is "[-]portnum", where a leading '-' sign means
+ * return control of the port to the EHCI controller.
+ */
+static ssize_t store_companion(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct ehci_hcd		*ehci;
+	int			portnum, new_owner;
+
+	ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev)));
+	new_owner = PORT_OWNER;		/* Owned by companion */
+	if (sscanf(buf, "%d", &portnum) != 1)
+		return -EINVAL;
+	if (portnum < 0) {
+		portnum = - portnum;
+		new_owner = 0;		/* Owned by EHCI */
+	}
+	if (portnum <= 0 || portnum > HCS_N_PORTS(ehci->hcs_params))
+		return -ENOENT;
+	portnum--;
+	if (new_owner)
+		set_bit(portnum, &ehci->companion_ports);
+	else
+		clear_bit(portnum, &ehci->companion_ports);
+	set_owner(ehci, portnum, new_owner);
 	return count;
 }
-static CLASS_DEVICE_ATTR(companion, 0644, show_companion, store_companion);
+static DEVICE_ATTR(companion, 0644, show_companion, store_companion);
 
 static inline void create_companion_file(struct ehci_hcd *ehci)
 {
@@ -372,16 +390,16 @@ static inline void create_companion_file(struct ehci_hcd *ehci)
 
 	/* with integrated TT there is no companion! */
 	if (!ehci_is_TDI(ehci))
-		i = class_device_create_file(ehci_to_hcd(ehci)->self.class_dev,
-				&class_device_attr_companion);
+		i = device_create_file(ehci_to_hcd(ehci)->self.dev,
+				       &dev_attr_companion);
 }
 
 static inline void remove_companion_file(struct ehci_hcd *ehci)
 {
 	/* with integrated TT there is no companion! */
 	if (!ehci_is_TDI(ehci))
-		class_device_remove_file(ehci_to_hcd(ehci)->self.class_dev,
-				&class_device_attr_companion);
+		device_remove_file(ehci_to_hcd(ehci)->self.dev,
+				   &dev_attr_companion);
 }
 
 
@@ -393,10 +411,8 @@ static int check_reset_complete (
 	u32 __iomem	*status_reg,
 	int		port_status
 ) {
-	if (!(port_status & PORT_CONNECT)) {
-		ehci->reset_done [index] = 0;
+	if (!(port_status & PORT_CONNECT))
 		return port_status;
-	}
 
 	/* if reset finished and it's still not enabled -- handoff */
 	if (!(port_status & PORT_PE)) {
@@ -475,8 +491,6 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf)
 		 * controller by the user.
 		 */
 
-		if (!(temp & PORT_CONNECT))
-			ehci->reset_done [i] = 0;
 		if ((temp & mask) != 0
 				|| ((temp & PORT_RESUME) != 0
 					&& time_after_eq(jiffies,
@@ -864,3 +878,13 @@ error:
 	spin_unlock_irqrestore (&ehci->lock, flags);
 	return retval;
 }
+
+static void ehci_relinquish_port(struct usb_hcd *hcd, int portnum)
+{
+	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);
+
+	if (ehci_is_TDI(ehci))
+		return;
+	set_owner(ehci, --portnum, PORT_OWNER);
+}
+

drivers/usb/host/ehci-ixp4xx.c

@@ -0,0 +1,152 @@
+/*
+ * IXP4XX EHCI Host Controller Driver
+ *
+ * Author: Vladimir Barinov <vbarinov@ru.mvista.com>
+ *
+ * Based on "ehci-fsl.c" by Randy Vinson <rvinson@mvista.com>
+ *
+ * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/platform_device.h>
+
+static int ixp4xx_ehci_init(struct usb_hcd *hcd)
+{
+	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	int retval = 0;
+
+	ehci->big_endian_desc = 1;
+	ehci->big_endian_mmio = 1;
+
+	ehci->caps = hcd->regs + 0x100;
+	ehci->regs = hcd->regs + 0x100
+		+ HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+	ehci->is_tdi_rh_tt = 1;
+	ehci_reset(ehci);
+
+	retval = ehci_init(hcd);
+	if (retval)
+		return retval;
+
+	ehci_port_power(ehci, 0);
+
+	return retval;
+}
+
+static const struct hc_driver ixp4xx_ehci_hc_driver = {
+	.description		= hcd_name,
+	.product_desc		= "IXP4XX EHCI Host Controller",
+	.hcd_priv_size		= sizeof(struct ehci_hcd),
+	.irq			= ehci_irq,
+	.flags			= HCD_MEMORY | HCD_USB2,
+	.reset			= ixp4xx_ehci_init,
+	.start			= ehci_run,
+	.stop			= ehci_stop,
+	.shutdown		= ehci_shutdown,
+	.urb_enqueue		= ehci_urb_enqueue,
+	.urb_dequeue		= ehci_urb_dequeue,
+	.endpoint_disable	= ehci_endpoint_disable,
+	.get_frame_number	= ehci_get_frame,
+	.hub_status_data	= ehci_hub_status_data,
+	.hub_control		= ehci_hub_control,
+#if defined(CONFIG_PM)
+	.bus_suspend		= ehci_bus_suspend,
+	.bus_resume		= ehci_bus_resume,
+#endif
+};
+
+static int ixp4xx_ehci_probe(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	const struct hc_driver *driver = &ixp4xx_ehci_hc_driver;
+	struct resource *res;
+	int irq;
+	int retval;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(&pdev->dev,
+			"Found HC with no IRQ. Check %s setup!\n",
+			pdev->dev.bus_id);
+		return -ENODEV;
+	}
+	irq = res->start;
+
+	hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
+	if (!hcd) {
+		retval = -ENOMEM;
+		goto fail_create_hcd;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev,
+			"Found HC with no register addr. Check %s setup!\n",
+			pdev->dev.bus_id);
+		retval = -ENODEV;
+		goto fail_request_resource;
+	}
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = res->end - res->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
+				driver->description)) {
+		dev_dbg(&pdev->dev, "controller already in use\n");
+		retval = -EBUSY;
+		goto fail_request_resource;
+	}
+
+	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+	if (hcd->regs == NULL) {
+		dev_dbg(&pdev->dev, "error mapping memory\n");
+		retval = -EFAULT;
+		goto fail_ioremap;
+	}
+
+	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (retval)
+		goto fail_add_hcd;
+
+	return retval;
+
+fail_add_hcd:
+	iounmap(hcd->regs);
+fail_ioremap:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+fail_request_resource:
+	usb_put_hcd(hcd);
+fail_create_hcd:
+	dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval);
+	return retval;
+}
+
+static int ixp4xx_ehci_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+MODULE_ALIAS("ixp4xx-ehci");
+
+static struct platform_driver ixp4xx_ehci_driver = {
+	.probe = ixp4xx_ehci_probe,
+	.remove = ixp4xx_ehci_remove,
+	.driver = {
+		.name = "ixp4xx-ehci",
+		.bus = &platform_bus_type
+	},
+};

drivers/usb/host/ehci-orion.c

@@ -0,0 +1,272 @@
+/*
+ * drivers/usb/host/ehci-orion.c
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <asm/arch/orion.h>
+
+#define rdl(off)	__raw_readl(hcd->regs + (off))
+#define wrl(off, val)	__raw_writel((val), hcd->regs + (off))
+
+#define USB_CAUSE		0x310
+#define USB_MASK		0x314
+#define USB_CMD			0x140
+#define USB_MODE		0x1a8
+#define USB_IPG			0x360
+#define USB_PHY_PWR_CTRL	0x400
+#define USB_PHY_TX_CTRL		0x420
+#define USB_PHY_RX_CTRL		0x430
+#define USB_PHY_IVREF_CTRL	0x440
+#define USB_PHY_TST_GRP_CTRL	0x450
+
+/*
+ * Implement Orion USB controller specification guidelines
+ */
+static void orion_usb_setup(struct usb_hcd *hcd)
+{
+	/*
+	 * Clear interrupt cause and mask
+	 */
+	wrl(USB_CAUSE, 0);
+	wrl(USB_MASK, 0);
+
+	/*
+	 * Reset controller
+	 */
+	wrl(USB_CMD, rdl(USB_CMD) | 0x2);
+	while (rdl(USB_CMD) & 0x2);
+
+	/*
+	 * GL# USB-10: Set IPG for non start of frame packets
+	 * Bits[14:8]=0xc
+	 */
+	wrl(USB_IPG, (rdl(USB_IPG) & ~0x7f00) | 0xc00);
+
+	/*
+	 * GL# USB-9: USB 2.0 Power Control
+	 * BG_VSEL[7:6]=0x1
+	 */
+	wrl(USB_PHY_PWR_CTRL, (rdl(USB_PHY_PWR_CTRL) & ~0xc0)| 0x40);
+
+	/*
+	 * GL# USB-1: USB PHY Tx Control - force calibration to '8'
+	 * TXDATA_BLOCK_EN[21]=0x1, EXT_RCAL_EN[13]=0x1, IMP_CAL[6:3]=0x8
+	 */
+	wrl(USB_PHY_TX_CTRL, (rdl(USB_PHY_TX_CTRL) & ~0x78) | 0x202040);
+
+	/*
+	 * GL# USB-3 GL# USB-9: USB PHY Rx Control
+	 * RXDATA_BLOCK_LENGHT[31:30]=0x3, EDGE_DET_SEL[27:26]=0,
+	 * CDR_FASTLOCK_EN[21]=0, DISCON_THRESHOLD[9:8]=0, SQ_THRESH[7:4]=0x1
+	 */
+	wrl(USB_PHY_RX_CTRL, (rdl(USB_PHY_RX_CTRL) & ~0xc2003f0) | 0xc0000010);
+
+	/*
+	 * GL# USB-3 GL# USB-9: USB PHY IVREF Control
+	 * PLLVDD12[1:0]=0x2, RXVDD[5:4]=0x3, Reserved[19]=0
+	 */
+	wrl(USB_PHY_IVREF_CTRL, (rdl(USB_PHY_IVREF_CTRL) & ~0x80003 ) | 0x32);
+
+	/*
+	 * GL# USB-3 GL# USB-9: USB PHY Test Group Control
+	 * REG_FIFO_SQ_RST[15]=0
+	 */
+	wrl(USB_PHY_TST_GRP_CTRL, rdl(USB_PHY_TST_GRP_CTRL) & ~0x8000);
+
+	/*
+	 * Stop and reset controller
+	 */
+	wrl(USB_CMD, rdl(USB_CMD) & ~0x1);
+	wrl(USB_CMD, rdl(USB_CMD) | 0x2);
+	while (rdl(USB_CMD) & 0x2);
+
+	/*
+	 * GL# USB-5 Streaming disable REG_USB_MODE[4]=1
+	 * TBD: This need to be done after each reset!
+	 * GL# USB-4 Setup USB Host mode
+	 */
+	wrl(USB_MODE, 0x13);
+}
+
+static int ehci_orion_setup(struct usb_hcd *hcd)
+{
+	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	int retval;
+
+	retval = ehci_halt(ehci);
+	if (retval)
+		return retval;
+
+	/*
+	 * data structure init
+	 */
+	retval = ehci_init(hcd);
+	if (retval)
+		return retval;
+
+	ehci_reset(ehci);
+	ehci_port_power(ehci, 0);
+
+	return retval;
+}
+
+static const struct hc_driver ehci_orion_hc_driver = {
+	.description = hcd_name,
+	.product_desc = "Marvell Orion EHCI",
+	.hcd_priv_size = sizeof(struct ehci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq = ehci_irq,
+	.flags = HCD_MEMORY | HCD_USB2,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset = ehci_orion_setup,
+	.start = ehci_run,
+#ifdef CONFIG_PM
+	.suspend = ehci_bus_suspend,
+	.resume = ehci_bus_resume,
+#endif
+	.stop = ehci_stop,
+	.shutdown = ehci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue = ehci_urb_enqueue,
+	.urb_dequeue = ehci_urb_dequeue,
+	.endpoint_disable = ehci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number = ehci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data = ehci_hub_status_data,
+	.hub_control = ehci_hub_control,
+	.bus_suspend = ehci_bus_suspend,
+	.bus_resume = ehci_bus_resume,
+};
+
+static int __init ehci_orion_drv_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct usb_hcd *hcd;
+	struct ehci_hcd *ehci;
+	void __iomem *regs;
+	int irq, err;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_debug("Initializing Orion-SoC USB Host Controller\n");
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq <= 0) {
+		dev_err(&pdev->dev,
+			"Found HC with no IRQ. Check %s setup!\n",
+			pdev->dev.bus_id);
+		err = -ENODEV;
+		goto err1;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev,
+			"Found HC with no register addr. Check %s setup!\n",
+			pdev->dev.bus_id);
+		err = -ENODEV;
+		goto err1;
+	}
+
+	if (!request_mem_region(res->start, res->end - res->start + 1,
+				ehci_orion_hc_driver.description)) {
+		dev_dbg(&pdev->dev, "controller already in use\n");
+		err = -EBUSY;
+		goto err1;
+	}
+
+	regs = ioremap(res->start, res->end - res->start + 1);
+	if (regs == NULL) {
+		dev_dbg(&pdev->dev, "error mapping memory\n");
+		err = -EFAULT;
+		goto err2;
+	}
+
+	hcd = usb_create_hcd(&ehci_orion_hc_driver,
+			&pdev->dev, pdev->dev.bus_id);
+	if (!hcd) {
+		err = -ENOMEM;
+		goto err3;
+	}
+
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = res->end - res->start + 1;
+	hcd->regs = regs;
+
+	ehci = hcd_to_ehci(hcd);
+	ehci->caps = hcd->regs + 0x100;
+	ehci->regs = hcd->regs + 0x100 +
+		HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+	ehci->is_tdi_rh_tt = 1;
+	ehci->sbrn = 0x20;
+
+	/*
+	 * setup Orion USB controller
+	 */
+	orion_usb_setup(hcd);
+
+	err = usb_add_hcd(hcd, irq, IRQF_SHARED | IRQF_DISABLED);
+	if (err)
+		goto err4;
+
+	return 0;
+
+err4:
+	usb_put_hcd(hcd);
+err3:
+	iounmap(regs);
+err2:
+	release_mem_region(res->start, res->end - res->start + 1);
+err1:
+	dev_err(&pdev->dev, "init %s fail, %d\n",
+		pdev->dev.bus_id, err);
+
+	return err;
+}
+
+static int __exit ehci_orion_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+MODULE_ALIAS("platform:orion-ehci");
+
+static struct platform_driver ehci_orion_driver = {
+	.probe		= ehci_orion_drv_probe,
+	.remove		= __exit_p(ehci_orion_drv_remove),
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver.name	= "orion-ehci",
+};

drivers/usb/host/ehci-pci.c

@@ -305,7 +305,7 @@ static int ehci_pci_resume(struct usb_hcd *hcd)
 	/* emptying the schedule aborts any urbs */
 	spin_lock_irq(&ehci->lock);
 	if (ehci->reclaim)
-		ehci->reclaim_ready = 1;
+		end_unlink_async(ehci);
 	ehci_work(ehci);
 	spin_unlock_irq(&ehci->lock);
 
@@ -364,6 +364,7 @@ static const struct hc_driver ehci_pci_hc_driver = {
 	.hub_control =		ehci_hub_control,
 	.bus_suspend =		ehci_bus_suspend,
 	.bus_resume =		ehci_bus_resume,
+	.relinquish_port = 	ehci_relinquish_port,
 };
 
 /*-------------------------------------------------------------------------*/

drivers/usb/host/ehci-ppc-of.c

@@ -0,0 +1,238 @@
+/*
+ * EHCI HCD (Host Controller Driver) for USB.
+ *
+ * Bus Glue for PPC On-Chip EHCI driver on the of_platform bus
+ * Tested on AMCC PPC 440EPx
+ *
+ * Valentine Barshak <vbarshak@ru.mvista.com>
+ *
+ * Based on "ehci-ppc-soc.c" by Stefan Roese <sr@denx.de>
+ * and "ohci-ppc-of.c" by Sylvain Munaut <tnt@246tNt.com>
+ *
+ * This file is licenced under the GPL.
+ */
+
+#include <linux/signal.h>
+
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+/* called during probe() after chip reset completes */
+static int ehci_ppc_of_setup(struct usb_hcd *hcd)
+{
+	struct ehci_hcd	*ehci = hcd_to_ehci(hcd);
+	int		retval;
+
+	retval = ehci_halt(ehci);
+	if (retval)
+		return retval;
+
+	retval = ehci_init(hcd);
+	if (retval)
+		return retval;
+
+	ehci->sbrn = 0x20;
+	return ehci_reset(ehci);
+}
+
+
+static const struct hc_driver ehci_ppc_of_hc_driver = {
+	.description		= hcd_name,
+	.product_desc		= "OF EHCI",
+	.hcd_priv_size		= sizeof(struct ehci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq			= ehci_irq,
+	.flags			= HCD_MEMORY | HCD_USB2,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset			= ehci_ppc_of_setup,
+	.start			= ehci_run,
+	.stop			= ehci_stop,
+	.shutdown		= ehci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue		= ehci_urb_enqueue,
+	.urb_dequeue		= ehci_urb_dequeue,
+	.endpoint_disable	= ehci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number	= ehci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data	= ehci_hub_status_data,
+	.hub_control		= ehci_hub_control,
+#ifdef	CONFIG_PM
+	.bus_suspend		= ehci_bus_suspend,
+	.bus_resume		= ehci_bus_resume,
+#endif
+};
+
+
+/*
+ * 440EPx Errata USBH_3
+ * Fix: Enable Break Memory Transfer (BMT) in INSNREG3
+ */
+#define PPC440EPX_EHCI0_INSREG_BMT	(0x1 << 0)
+static int __devinit
+ppc44x_enable_bmt(struct device_node *dn)
+{
+	__iomem u32 *insreg_virt;
+
+	insreg_virt = of_iomap(dn, 1);
+	if (!insreg_virt)
+		return  -EINVAL;
+
+	out_be32(insreg_virt + 3, PPC440EPX_EHCI0_INSREG_BMT);
+
+	iounmap(insreg_virt);
+	return 0;
+}
+
+
+static int __devinit
+ehci_hcd_ppc_of_probe(struct of_device *op, const struct of_device_id *match)
+{
+	struct device_node *dn = op->node;
+	struct usb_hcd *hcd;
+	struct ehci_hcd	*ehci;
+	struct resource res;
+	int irq;
+	int rv;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n");
+
+	rv = of_address_to_resource(dn, 0, &res);
+	if (rv)
+		return rv;
+
+	hcd = usb_create_hcd(&ehci_ppc_of_hc_driver, &op->dev, "PPC-OF USB");
+	if (!hcd)
+		return -ENOMEM;
+
+	hcd->rsrc_start = res.start;
+	hcd->rsrc_len = res.end - res.start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		printk(KERN_ERR __FILE__ ": request_mem_region failed\n");
+		rv = -EBUSY;
+		goto err_rmr;
+	}
+
+	irq = irq_of_parse_and_map(dn, 0);
+	if (irq == NO_IRQ) {
+		printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n");
+		rv = -EBUSY;
+		goto err_irq;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		printk(KERN_ERR __FILE__ ": ioremap failed\n");
+		rv = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	ehci = hcd_to_ehci(hcd);
+
+	if (of_get_property(dn, "big-endian", NULL)) {
+		ehci->big_endian_mmio = 1;
+		ehci->big_endian_desc = 1;
+	}
+	if (of_get_property(dn, "big-endian-regs", NULL))
+		ehci->big_endian_mmio = 1;
+	if (of_get_property(dn, "big-endian-desc", NULL))
+		ehci->big_endian_desc = 1;
+
+	ehci->caps = hcd->regs;
+	ehci->regs = hcd->regs +
+			HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+
+	/* cache this readonly data; minimize chip reads */
+	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+	if (of_device_is_compatible(dn, "ibm,usb-ehci-440epx")) {
+		rv = ppc44x_enable_bmt(dn);
+		ehci_dbg(ehci, "Break Memory Transfer (BMT) is %senabled!\n",
+				rv ? "NOT ": "");
+	}
+
+	rv = usb_add_hcd(hcd, irq, 0);
+	if (rv == 0)
+		return 0;
+
+	iounmap(hcd->regs);
+err_ioremap:
+	irq_dispose_mapping(irq);
+err_irq:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_rmr:
+	usb_put_hcd(hcd);
+
+	return rv;
+}
+
+
+static int ehci_hcd_ppc_of_remove(struct of_device *op)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
+	dev_set_drvdata(&op->dev, NULL);
+
+	dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n");
+
+	usb_remove_hcd(hcd);
+
+	iounmap(hcd->regs);
+	irq_dispose_mapping(hcd->irq);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+
+static int ehci_hcd_ppc_of_shutdown(struct of_device *op)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
+
+	if (hcd->driver->shutdown)
+		hcd->driver->shutdown(hcd);
+
+	return 0;
+}
+
+
+static struct of_device_id ehci_hcd_ppc_of_match[] = {
+	{
+		.compatible = "usb-ehci",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, ehci_hcd_ppc_of_match);
+
+
+static struct of_platform_driver ehci_hcd_ppc_of_driver = {
+	.name		= "ppc-of-ehci",
+	.match_table	= ehci_hcd_ppc_of_match,
+	.probe		= ehci_hcd_ppc_of_probe,
+	.remove		= ehci_hcd_ppc_of_remove,
+	.shutdown	= ehci_hcd_ppc_of_shutdown,
+	.driver		= {
+		.name	= "ppc-of-ehci",
+		.owner	= THIS_MODULE,
+	},
+};

drivers/usb/host/ehci-ppc-soc.c

@@ -162,6 +162,7 @@ static const struct hc_driver ehci_ppc_soc_hc_driver = {
 	.hub_control = ehci_hub_control,
 	.bus_suspend = ehci_bus_suspend,
 	.bus_resume = ehci_bus_resume,
+	.relinquish_port = ehci_relinquish_port,
 };
 
 static int ehci_hcd_ppc_soc_drv_probe(struct platform_device *pdev)

drivers/usb/host/ehci-ps3.c

@@ -72,6 +72,7 @@ static const struct hc_driver ps3_ehci_hc_driver = {
 	.bus_suspend		= ehci_bus_suspend,
 	.bus_resume		= ehci_bus_resume,
 #endif
+	.relinquish_port	= ehci_relinquish_port,
 };
 
 static int ps3_ehci_probe(struct ps3_system_bus_device *dev)

drivers/usb/host/ehci-q.c

@@ -198,7 +198,8 @@ static int qtd_copy_status (
 
 		/* if async CSPLIT failed, try cleaning out the TT buffer */
 		if (status != -EPIPE
-				&& urb->dev->tt && !usb_pipeint (urb->pipe)
+				&& urb->dev->tt
+				&& !usb_pipeint(urb->pipe)
 				&& ((token & QTD_STS_MMF) != 0
 					|| QTD_CERR(token) == 0)
 				&& (!ehci_is_TDI(ehci)
@@ -211,6 +212,9 @@ static int qtd_copy_status (
 				urb->dev->ttport, urb->dev->devnum,
 				usb_pipeendpoint (urb->pipe), token);
 #endif /* DEBUG */
+			/* REVISIT ARC-derived cores don't clear the root
+			 * hub TT buffer in this way...
+			 */
 			usb_hub_tt_clear_buffer (urb->dev, urb->pipe);
 		}
 	}
@@ -638,6 +642,7 @@ qh_make (
 	u32			info1 = 0, info2 = 0;
 	int			is_input, type;
 	int			maxp = 0;
+	struct usb_tt		*tt = urb->dev->tt;
 
 	if (!qh)
 		return qh;
@@ -661,8 +666,9 @@ qh_make (
 	 * For control/bulk requests, the HC or TT handles these.
 	 */
 	if (type == PIPE_INTERRUPT) {
-		qh->usecs = NS_TO_US (usb_calc_bus_time (USB_SPEED_HIGH, is_input, 0,
-				hb_mult (maxp) * max_packet (maxp)));
+		qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
+				is_input, 0,
+				hb_mult(maxp) * max_packet(maxp)));
 		qh->start = NO_FRAME;
 
 		if (urb->dev->speed == USB_SPEED_HIGH) {
@@ -680,7 +686,6 @@ qh_make (
 				goto done;
 			}
 		} else {
-			struct usb_tt	*tt = urb->dev->tt;
 			int		think_time;
 
 			/* gap is f(FS/LS transfer times) */
@@ -736,10 +741,8 @@ qh_make (
 		/* set the address of the TT; for TDI's integrated
 		 * root hub tt, leave it zeroed.
 		 */
-		if (!ehci_is_TDI(ehci)
-				|| urb->dev->tt->hub !=
-					ehci_to_hcd(ehci)->self.root_hub)
-			info2 |= urb->dev->tt->hub->devnum << 16;
+		if (tt && tt->hub != ehci_to_hcd(ehci)->self.root_hub)
+			info2 |= tt->hub->devnum << 16;
 
 		/* NOTE:  if (PIPE_INTERRUPT) { scheduler sets c-mask } */
 
@@ -973,7 +976,7 @@ static void end_unlink_async (struct ehci_hcd *ehci)
 	struct ehci_qh		*qh = ehci->reclaim;
 	struct ehci_qh		*next;
 
-	timer_action_done (ehci, TIMER_IAA_WATCHDOG);
+	iaa_watchdog_done(ehci);
 
 	// qh->hw_next = cpu_to_hc32(qh->qh_dma);
 	qh->qh_state = QH_STATE_IDLE;
@@ -983,7 +986,6 @@ static void end_unlink_async (struct ehci_hcd *ehci)
 	/* other unlink(s) may be pending (in QH_STATE_UNLINK_WAIT) */
 	next = qh->reclaim;
 	ehci->reclaim = next;
-	ehci->reclaim_ready = 0;
 	qh->reclaim = NULL;
 
 	qh_completions (ehci, qh);
@@ -1059,11 +1061,10 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 		return;
 	}
 
-	ehci->reclaim_ready = 0;
 	cmd |= CMD_IAAD;
 	ehci_writel(ehci, cmd, &ehci->regs->command);
 	(void)ehci_readl(ehci, &ehci->regs->command);
-	timer_action (ehci, TIMER_IAA_WATCHDOG);
+	iaa_watchdog_start(ehci);
 }
 
 /*-------------------------------------------------------------------------*/

drivers/usb/host/ehci-sched.c

@@ -119,7 +119,8 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
 			q = &q->fstn->fstn_next;
 			break;
 		case Q_TYPE_ITD:
-			usecs += q->itd->usecs [uframe];
+			if (q->itd->hw_transaction[uframe])
+				usecs += q->itd->stream->usecs;
 			hw_p = &q->itd->hw_next;
 			q = &q->itd->itd_next;
 			break;
@@ -211,7 +212,7 @@ static inline void carryover_tt_bandwidth(unsigned short tt_usecs[8])
  * low/fullspeed transfer can "carry over" from one uframe to the next,
  * since the TT just performs downstream transfers in sequence.
  *
- * For example two seperate 100 usec transfers can start in the same uframe,
+ * For example two separate 100 usec transfers can start in the same uframe,
  * and the second one would "carry over" 75 usecs into the next uframe.
  */
 static void
@@ -1536,7 +1537,6 @@ itd_link_urb (
 		uframe = next_uframe & 0x07;
 		frame = next_uframe >> 3;
 
-		itd->usecs [uframe] = stream->usecs;
 		itd_patch(ehci, itd, iso_sched, packet, uframe);
 
 		next_uframe += stream->interval;
@@ -1565,6 +1565,16 @@ itd_link_urb (
 
 #define	ISO_ERRS (EHCI_ISOC_BUF_ERR | EHCI_ISOC_BABBLE | EHCI_ISOC_XACTERR)
 
+/* Process and recycle a completed ITD.  Return true iff its urb completed,
+ * and hence its completion callback probably added things to the hardware
+ * schedule.
+ *
+ * Note that we carefully avoid recycling this descriptor until after any
+ * completion callback runs, so that it won't be reused quickly.  That is,
+ * assuming (a) no more than two urbs per frame on this endpoint, and also
+ * (b) only this endpoint's completions submit URBs.  It seems some silicon
+ * corrupts things if you reuse completed descriptors very quickly...
+ */
 static unsigned
 itd_complete (
 	struct ehci_hcd	*ehci,
@@ -1577,6 +1587,7 @@ itd_complete (
 	int					urb_index = -1;
 	struct ehci_iso_stream			*stream = itd->stream;
 	struct usb_device			*dev;
+	unsigned				retval = false;
 
 	/* for each uframe with a packet */
 	for (uframe = 0; uframe < 8; uframe++) {
@@ -1610,30 +1621,21 @@ itd_complete (
 		}
 	}
 
-	usb_put_urb (urb);
-	itd->urb = NULL;
-	itd->stream = NULL;
-	list_move (&itd->itd_list, &stream->free_list);
-	iso_stream_put (ehci, stream);
-
 	/* handle completion now? */
 	if (likely ((urb_index + 1) != urb->number_of_packets))
-		return 0;
+		goto done;
 
 	/* ASSERT: it's really the last itd for this urb
 	list_for_each_entry (itd, &stream->td_list, itd_list)
 		BUG_ON (itd->urb == urb);
 	 */
 
-	/* give urb back to the driver ... can be out-of-order */
+	/* give urb back to the driver; completion often (re)submits */
 	dev = urb->dev;
 	ehci_urb_done(ehci, urb, 0);
+	retval = true;
 	urb = NULL;
-
-	/* defer stopping schedule; completion can submit */
 	ehci->periodic_sched--;
-	if (unlikely (!ehci->periodic_sched))
-		(void) disable_periodic (ehci);
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--;
 
 	if (unlikely (list_empty (&stream->td_list))) {
@@ -1645,8 +1647,15 @@ itd_complete (
 			(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
 	}
 	iso_stream_put (ehci, stream);
+	/* OK to recycle this ITD now that its completion callback ran. */
+done:
+	usb_put_urb(urb);
+	itd->urb = NULL;
+	itd->stream = NULL;
+	list_move(&itd->itd_list, &stream->free_list);
+	iso_stream_put(ehci, stream);
 
-	return 1;
+	return retval;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1712,8 +1721,6 @@ done:
 	return status;
 }
 
-#ifdef CONFIG_USB_EHCI_SPLIT_ISO
-
 /*-------------------------------------------------------------------------*/
 
 /*
@@ -1950,6 +1957,16 @@ sitd_link_urb (
 #define	SITD_ERRS (SITD_STS_ERR | SITD_STS_DBE | SITD_STS_BABBLE \
 				| SITD_STS_XACT | SITD_STS_MMF)
 
+/* Process and recycle a completed SITD.  Return true iff its urb completed,
+ * and hence its completion callback probably added things to the hardware
+ * schedule.
+ *
+ * Note that we carefully avoid recycling this descriptor until after any
+ * completion callback runs, so that it won't be reused quickly.  That is,
+ * assuming (a) no more than two urbs per frame on this endpoint, and also
+ * (b) only this endpoint's completions submit URBs.  It seems some silicon
+ * corrupts things if you reuse completed descriptors very quickly...
+ */
 static unsigned
 sitd_complete (
 	struct ehci_hcd		*ehci,
@@ -1961,6 +1978,7 @@ sitd_complete (
 	int					urb_index = -1;
 	struct ehci_iso_stream			*stream = sitd->stream;
 	struct usb_device			*dev;
+	unsigned				retval = false;
 
 	urb_index = sitd->index;
 	desc = &urb->iso_frame_desc [urb_index];
@@ -1981,32 +1999,23 @@ sitd_complete (
 		desc->status = 0;
 		desc->actual_length = desc->length - SITD_LENGTH (t);
 	}
-
-	usb_put_urb (urb);
-	sitd->urb = NULL;
-	sitd->stream = NULL;
-	list_move (&sitd->sitd_list, &stream->free_list);
 	stream->depth -= stream->interval << 3;
-	iso_stream_put (ehci, stream);
 
 	/* handle completion now? */
 	if ((urb_index + 1) != urb->number_of_packets)
-		return 0;
+		goto done;
 
 	/* ASSERT: it's really the last sitd for this urb
 	list_for_each_entry (sitd, &stream->td_list, sitd_list)
 		BUG_ON (sitd->urb == urb);
 	 */
 
-	/* give urb back to the driver */
+	/* give urb back to the driver; completion often (re)submits */
 	dev = urb->dev;
 	ehci_urb_done(ehci, urb, 0);
+	retval = true;
 	urb = NULL;
-
-	/* defer stopping schedule; completion can submit */
 	ehci->periodic_sched--;
-	if (!ehci->periodic_sched)
-		(void) disable_periodic (ehci);
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--;
 
 	if (list_empty (&stream->td_list)) {
@@ -2018,8 +2027,15 @@ sitd_complete (
 			(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
 	}
 	iso_stream_put (ehci, stream);
+	/* OK to recycle this SITD now that its completion callback ran. */
+done:
+	usb_put_urb(urb);
+	sitd->urb = NULL;
+	sitd->stream = NULL;
+	list_move(&sitd->sitd_list, &stream->free_list);
+	iso_stream_put(ehci, stream);
 
-	return 1;
+	return retval;
 }
 
 
@@ -2082,26 +2098,6 @@ done:
 	return status;
 }
 
-#else
-
-static inline int
-sitd_submit (struct ehci_hcd *ehci, struct urb *urb, gfp_t mem_flags)
-{
-	ehci_dbg (ehci, "split iso support is disabled\n");
-	return -ENOSYS;
-}
-
-static inline unsigned
-sitd_complete (
-	struct ehci_hcd		*ehci,
-	struct ehci_sitd	*sitd
-) {
-	ehci_err (ehci, "sitd_complete %p?\n", sitd);
-	return 0;
-}
-
-#endif /* USB_EHCI_SPLIT_ISO */
-
 /*-------------------------------------------------------------------------*/
 
 static void
@@ -2127,17 +2123,9 @@ scan_periodic (struct ehci_hcd *ehci)
 	for (;;) {
 		union ehci_shadow	q, *q_p;
 		__hc32			type, *hw_p;
-		unsigned		uframes;
+		unsigned		incomplete = false;
 
-		/* don't scan past the live uframe */
 		frame = now_uframe >> 3;
-		if (frame == (clock >> 3))
-			uframes = now_uframe & 0x07;
-		else {
-			/* safe to scan the whole frame at once */
-			now_uframe |= 0x07;
-			uframes = 8;
-		}
 
 restart:
 		/* scan each element in frame's queue for completions */
@@ -2175,12 +2163,15 @@ restart:
 				q = q.fstn->fstn_next;
 				break;
 			case Q_TYPE_ITD:
-				/* skip itds for later in the frame */
+				/* If this ITD is still active, leave it for
+				 * later processing ... check the next entry.
+				 */
 				rmb ();
-				for (uf = live ? uframes : 8; uf < 8; uf++) {
+				for (uf = 0; uf < 8 && live; uf++) {
 					if (0 == (q.itd->hw_transaction [uf]
 							& ITD_ACTIVE(ehci)))
 						continue;
+					incomplete = true;
 					q_p = &q.itd->itd_next;
 					hw_p = &q.itd->hw_next;
 					type = Q_NEXT_TYPE(ehci,
@@ -2188,10 +2179,12 @@ restart:
 					q = *q_p;
 					break;
 				}
-				if (uf != 8)
+				if (uf < 8 && live)
 					break;
 
-				/* this one's ready ... HC won't cache the
+				/* Take finished ITDs out of the schedule
+				 * and process them:  recycle, maybe report
+				 * URB completion.  HC won't cache the
 				 * pointer for much longer, if at all.
 				 */
 				*q_p = q.itd->itd_next;
@@ -2202,8 +2195,12 @@ restart:
 				q = *q_p;
 				break;
 			case Q_TYPE_SITD:
+				/* If this SITD is still active, leave it for
+				 * later processing ... check the next entry.
+				 */
 				if ((q.sitd->hw_results & SITD_ACTIVE(ehci))
 						&& live) {
+					incomplete = true;
 					q_p = &q.sitd->sitd_next;
 					hw_p = &q.sitd->hw_next;
 					type = Q_NEXT_TYPE(ehci,
@@ -2211,6 +2208,11 @@ restart:
 					q = *q_p;
 					break;
 				}
+
+				/* Take finished SITDs out of the schedule
+				 * and process them:  recycle, maybe report
+				 * URB completion.
+				 */
 				*q_p = q.sitd->sitd_next;
 				*hw_p = q.sitd->hw_next;
 				type = Q_NEXT_TYPE(ehci, q.sitd->hw_next);
@@ -2226,11 +2228,24 @@ restart:
 			}
 
 			/* assume completion callbacks modify the queue */
-			if (unlikely (modified))
-				goto restart;
+			if (unlikely (modified)) {
+				if (likely(ehci->periodic_sched > 0))
+					goto restart;
+				/* maybe we can short-circuit this scan! */
+				disable_periodic(ehci);
+				now_uframe = clock;
+				break;
+			}
 		}
 
-		/* stop when we catch up to the HC */
+		/* If we can tell we caught up to the hardware, stop now.
+		 * We can't advance our scan without collecting the ISO
+		 * transfers that are still pending in this frame.
+		 */
+		if (incomplete && HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) {
+			ehci->next_uframe = now_uframe;
+			break;
+		}
 
 		// FIXME:  this assumes we won't get lapped when
 		// latencies climb; that should be rare, but...
@@ -2243,7 +2258,8 @@ restart:
 		if (now_uframe == clock) {
 			unsigned	now;
 
-			if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
+			if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state)
+					|| ehci->periodic_sched == 0)
 				break;
 			ehci->next_uframe = now_uframe;
 			now = ehci_readl(ehci, &ehci->regs->frame_index) % mod;

drivers/usb/host/ehci.h

@@ -74,7 +74,6 @@ struct ehci_hcd {			/* one per controller */
 	/* async schedule support */
 	struct ehci_qh		*async;
 	struct ehci_qh		*reclaim;
-	unsigned		reclaim_ready : 1;
 	unsigned		scanning : 1;
 
 	/* periodic schedule support */
@@ -105,6 +104,7 @@ struct ehci_hcd {			/* one per controller */
 	struct dma_pool		*itd_pool;	/* itd per iso urb */
 	struct dma_pool		*sitd_pool;	/* sitd per split iso urb */
 
+	struct timer_list	iaa_watchdog;
 	struct timer_list	watchdog;
 	unsigned long		actions;
 	unsigned		stamp;
@@ -126,6 +126,14 @@ struct ehci_hcd {			/* one per controller */
 #	define COUNT(x) do { (x)++; } while (0)
 #else
 #	define COUNT(x) do {} while (0)
+#endif
+
+	/* debug files */
+#ifdef DEBUG
+	struct dentry		*debug_dir;
+	struct dentry		*debug_async;
+	struct dentry		*debug_periodic;
+	struct dentry		*debug_registers;
 #endif
 };
 
@@ -140,9 +148,21 @@ static inline struct usb_hcd *ehci_to_hcd (struct ehci_hcd *ehci)
 }
 
 
+static inline void
+iaa_watchdog_start(struct ehci_hcd *ehci)
+{
+	WARN_ON(timer_pending(&ehci->iaa_watchdog));
+	mod_timer(&ehci->iaa_watchdog,
+			jiffies + msecs_to_jiffies(EHCI_IAA_MSECS));
+}
+
+static inline void iaa_watchdog_done(struct ehci_hcd *ehci)
+{
+	del_timer(&ehci->iaa_watchdog);
+}
+
 enum ehci_timer_action {
 	TIMER_IO_WATCHDOG,
-	TIMER_IAA_WATCHDOG,
 	TIMER_ASYNC_SHRINK,
 	TIMER_ASYNC_OFF,
 };
@@ -160,9 +180,6 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
 		unsigned long t;
 
 		switch (action) {
-		case TIMER_IAA_WATCHDOG:
-			t = EHCI_IAA_JIFFIES;
-			break;
 		case TIMER_IO_WATCHDOG:
 			t = EHCI_IO_JIFFIES;
 			break;
@@ -179,8 +196,7 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
 		// async queue SHRINK often precedes IAA.  while it's ready
 		// to go OFF neither can matter, and afterwards the IO
 		// watchdog stops unless there's still periodic traffic.
-		if (action != TIMER_IAA_WATCHDOG
-				&& t > ehci->watchdog.expires
+		if (time_before_eq(t, ehci->watchdog.expires)
 				&& timer_pending (&ehci->watchdog))
 			return;
 		mod_timer (&ehci->watchdog, t);
@@ -534,8 +550,8 @@ struct ehci_iso_stream {
 	 * trusting urb->interval == f(epdesc->bInterval) and
 	 * including the extra info for hw_bufp[0..2]
 	 */
-	u8			interval;
 	u8			usecs, c_usecs;
+	u16			interval;
 	u16			tt_usecs;
 	u16			maxp;
 	u16			raw_mask;
@@ -586,7 +602,6 @@ struct ehci_itd {
 	unsigned		frame;		/* where scheduled */
 	unsigned		pg;
 	unsigned		index[8];	/* in urb->iso_frame_desc */
-	u8			usecs[8];
 } __attribute__ ((aligned (32)));
 
 /*-------------------------------------------------------------------------*/
@@ -725,11 +740,16 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc)
  * definition below can die once the 4xx support is
  * finally ported over.
  */
-#if defined(CONFIG_PPC)
+#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE)
 #define readl_be(addr)		in_be32((__force unsigned *)addr)
 #define writel_be(val, addr)	out_be32((__force unsigned *)addr, val)
 #endif
 
+#if defined(CONFIG_ARM) && defined(CONFIG_ARCH_IXP4XX)
+#define readl_be(addr)		__raw_readl((__force unsigned *)addr)
+#define writel_be(val, addr)	__raw_writel(val, (__force unsigned *)addr)
+#endif
+
 static inline unsigned int ehci_readl(const struct ehci_hcd *ehci,
 		__u32 __iomem * regs)
 {

drivers/usb/host/isp116x-hcd.c

@@ -918,7 +918,6 @@ static int isp116x_hub_status_data(struct usb_hcd *hcd, char *buf)
 			      | RH_PS_OCIC | RH_PS_PRSC)) {
 			changed = 1;
 			buf[0] |= 1 << (i + 1);
-			continue;
 		}
 	}
 	spin_unlock_irqrestore(&isp116x->lock, flags);

drivers/usb/host/ohci-at91.c

@@ -17,6 +17,8 @@
 
 #include <asm/mach-types.h>
 #include <asm/hardware.h>
+#include <asm/gpio.h>
+
 #include <asm/arch/board.h>
 #include <asm/arch/cpu.h>
 
@@ -271,12 +273,41 @@ static const struct hc_driver ohci_at91_hc_driver = {
 
 static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 {
+	struct at91_usbh_data	*pdata = pdev->dev.platform_data;
+	int			i;
+
+	if (pdata) {
+		/* REVISIT make the driver support per-port power switching,
+		 * and also overcurrent detection.  Here we assume the ports
+		 * are always powered while this driver is active, and use
+		 * active-low power switches.
+		 */
+		for (i = 0; i < pdata->ports; i++) {
+			if (pdata->vbus_pin[i] <= 0)
+				continue;
+			gpio_request(pdata->vbus_pin[i], "ohci_vbus");
+			gpio_direction_output(pdata->vbus_pin[i], 0);
+		}
+	}
+
 	device_init_wakeup(&pdev->dev, 1);
 	return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
 }
 
 static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
 {
+	struct at91_usbh_data	*pdata = pdev->dev.platform_data;
+	int			i;
+
+	if (pdata) {
+		for (i = 0; i < pdata->ports; i++) {
+			if (pdata->vbus_pin[i] <= 0)
+				continue;
+			gpio_direction_output(pdata->vbus_pin[i], 1);
+			gpio_free(pdata->vbus_pin[i]);
+		}
+	}
+
 	device_init_wakeup(&pdev->dev, 0);
 	return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev);
 }

drivers/usb/host/ohci-dbg.c

@@ -401,6 +401,42 @@ static inline void remove_debug_files (struct ohci_hcd *bus) { }
 
 #else
 
+static int debug_async_open(struct inode *, struct file *);
+static int debug_periodic_open(struct inode *, struct file *);
+static int debug_registers_open(struct inode *, struct file *);
+static int debug_async_open(struct inode *, struct file *);
+static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
+static int debug_close(struct inode *, struct file *);
+
+static const struct file_operations debug_async_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_async_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+static const struct file_operations debug_periodic_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_periodic_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+static const struct file_operations debug_registers_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_registers_open,
+	.read		= debug_output,
+	.release	= debug_close,
+};
+
+static struct dentry *ohci_debug_root;
+
+struct debug_buffer {
+	ssize_t (*fill_func)(struct debug_buffer *);	/* fill method */
+	struct device *dev;
+	struct mutex mutex;	/* protect filling of buffer */
+	size_t count;		/* number of characters filled into buffer */
+	char *page;
+};
+
 static ssize_t
 show_list (struct ohci_hcd *ohci, char *buf, size_t count, struct ed *ed)
 {
@@ -467,8 +503,7 @@ show_list (struct ohci_hcd *ohci, char *buf, size_t count, struct ed *ed)
 	return count - size;
 }
 
-static ssize_t
-show_async (struct class_device *class_dev, char *buf)
+static ssize_t fill_async_buffer(struct debug_buffer *buf)
 {
 	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
@@ -476,25 +511,23 @@ show_async (struct class_device *class_dev, char *buf)
 	size_t			temp;
 	unsigned long		flags;
 
-	bus = class_get_devdata(class_dev);
+	bus = dev_get_drvdata(buf->dev);
 	hcd = bus_to_hcd(bus);
 	ohci = hcd_to_ohci(hcd);
 
 	/* display control and bulk lists together, for simplicity */
 	spin_lock_irqsave (&ohci->lock, flags);
-	temp = show_list (ohci, buf, PAGE_SIZE, ohci->ed_controltail);
-	temp += show_list (ohci, buf + temp, PAGE_SIZE - temp, ohci->ed_bulktail);
+	temp = show_list(ohci, buf->page, buf->count, ohci->ed_controltail);
+	temp += show_list(ohci, buf->page + temp, buf->count - temp,
+			  ohci->ed_bulktail);
 	spin_unlock_irqrestore (&ohci->lock, flags);
 
 	return temp;
 }
-static CLASS_DEVICE_ATTR (async, S_IRUGO, show_async, NULL);
-
 
 #define DBG_SCHED_LIMIT 64
 
-static ssize_t
-show_periodic (struct class_device *class_dev, char *buf)
+static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 {
 	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
@@ -509,10 +542,10 @@ show_periodic (struct class_device *class_dev, char *buf)
 		return 0;
 	seen_count = 0;
 
-	bus = class_get_devdata(class_dev);
+	bus = (struct usb_bus *)dev_get_drvdata(buf->dev);
 	hcd = bus_to_hcd(bus);
 	ohci = hcd_to_ohci(hcd);
-	next = buf;
+	next = buf->page;
 	size = PAGE_SIZE;
 
 	temp = scnprintf (next, size, "size = %d\n", NUM_INTS);
@@ -589,13 +622,9 @@ show_periodic (struct class_device *class_dev, char *buf)
 
 	return PAGE_SIZE - size;
 }
-static CLASS_DEVICE_ATTR (periodic, S_IRUGO, show_periodic, NULL);
-
-
 #undef DBG_SCHED_LIMIT
 
-static ssize_t
-show_registers (struct class_device *class_dev, char *buf)
+static ssize_t fill_registers_buffer(struct debug_buffer *buf)
 {
 	struct usb_bus		*bus;
 	struct usb_hcd		*hcd;
@@ -606,11 +635,11 @@ show_registers (struct class_device *class_dev, char *buf)
 	char			*next;
 	u32			rdata;
 
-	bus = class_get_devdata(class_dev);
+	bus = (struct usb_bus *)dev_get_drvdata(buf->dev);
 	hcd = bus_to_hcd(bus);
 	ohci = hcd_to_ohci(hcd);
 	regs = ohci->regs;
-	next = buf;
+	next = buf->page;
 	size = PAGE_SIZE;
 
 	spin_lock_irqsave (&ohci->lock, flags);
@@ -677,29 +706,155 @@ show_registers (struct class_device *class_dev, char *buf)
 
 done:
 	spin_unlock_irqrestore (&ohci->lock, flags);
+
 	return PAGE_SIZE - size;
 }
-static CLASS_DEVICE_ATTR (registers, S_IRUGO, show_registers, NULL);
 
+static struct debug_buffer *alloc_buffer(struct device *dev,
+				ssize_t (*fill_func)(struct debug_buffer *))
+{
+	struct debug_buffer *buf;
+
+	buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
 
+	if (buf) {
+		buf->dev = dev;
+		buf->fill_func = fill_func;
+		mutex_init(&buf->mutex);
+	}
+
+	return buf;
+}
+
+static int fill_buffer(struct debug_buffer *buf)
+{
+	int ret = 0;
+
+	if (!buf->page)
+		buf->page = (char *)get_zeroed_page(GFP_KERNEL);
+
+	if (!buf->page) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = buf->fill_func(buf);
+
+	if (ret >= 0) {
+		buf->count = ret;
+		ret = 0;
+	}
+
+out:
+	return ret;
+}
+
+static ssize_t debug_output(struct file *file, char __user *user_buf,
+			size_t len, loff_t *offset)
+{
+	struct debug_buffer *buf = file->private_data;
+	int ret = 0;
+
+	mutex_lock(&buf->mutex);
+	if (buf->count == 0) {
+		ret = fill_buffer(buf);
+		if (ret != 0) {
+			mutex_unlock(&buf->mutex);
+			goto out;
+		}
+	}
+	mutex_unlock(&buf->mutex);
+
+	ret = simple_read_from_buffer(user_buf, len, offset,
+				      buf->page, buf->count);
+
+out:
+	return ret;
+
+}
+
+static int debug_close(struct inode *inode, struct file *file)
+{
+	struct debug_buffer *buf = file->private_data;
+
+	if (buf) {
+		if (buf->page)
+			free_page((unsigned long)buf->page);
+		kfree(buf);
+	}
+
+	return 0;
+}
+static int debug_async_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_periodic_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private,
+					  fill_periodic_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_registers_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private,
+					  fill_registers_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
 static inline void create_debug_files (struct ohci_hcd *ohci)
 {
-	struct class_device *cldev = ohci_to_hcd(ohci)->self.class_dev;
-	int retval;
+	struct usb_bus *bus = &ohci_to_hcd(ohci)->self;
+	struct device *dev = bus->dev;
+
+	ohci->debug_dir = debugfs_create_dir(bus->bus_name, ohci_debug_root);
+	if (!ohci->debug_dir)
+		goto dir_error;
+
+	ohci->debug_async = debugfs_create_file("async", S_IRUGO,
+						ohci->debug_dir, dev,
+						&debug_async_fops);
+	if (!ohci->debug_async)
+		goto async_error;
+
+	ohci->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
+						   ohci->debug_dir, dev,
+						   &debug_periodic_fops);
+	if (!ohci->debug_periodic)
+		goto periodic_error;
+
+	ohci->debug_registers = debugfs_create_file("registers", S_IRUGO,
+						    ohci->debug_dir, dev,
+						    &debug_registers_fops);
+	if (!ohci->debug_registers)
+		goto registers_error;
 
-	retval = class_device_create_file(cldev, &class_device_attr_async);
-	retval = class_device_create_file(cldev, &class_device_attr_periodic);
-	retval = class_device_create_file(cldev, &class_device_attr_registers);
 	ohci_dbg (ohci, "created debug files\n");
+	return;
+
+registers_error:
+	debugfs_remove(ohci->debug_periodic);
+periodic_error:
+	debugfs_remove(ohci->debug_async);
+async_error:
+	debugfs_remove(ohci->debug_dir);
+dir_error:
+	ohci->debug_periodic = NULL;
+	ohci->debug_async = NULL;
+	ohci->debug_dir = NULL;
 }
 
 static inline void remove_debug_files (struct ohci_hcd *ohci)
 {
-	struct class_device *cldev = ohci_to_hcd(ohci)->self.class_dev;
-
-	class_device_remove_file(cldev, &class_device_attr_async);
-	class_device_remove_file(cldev, &class_device_attr_periodic);
-	class_device_remove_file(cldev, &class_device_attr_registers);
+	debugfs_remove(ohci->debug_registers);
+	debugfs_remove(ohci->debug_periodic);
+	debugfs_remove(ohci->debug_async);
+	debugfs_remove(ohci->debug_dir);
 }
 
 #endif

drivers/usb/host/ohci-hcd.c

@@ -36,6 +36,7 @@
 #include <linux/dmapool.h>
 #include <linux/reboot.h>
 #include <linux/workqueue.h>
+#include <linux/debugfs.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -809,13 +810,9 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 	}
 
 	if (ints & OHCI_INTR_WDH) {
-		if (HC_IS_RUNNING(hcd->state))
-			ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrdisable);
 		spin_lock (&ohci->lock);
 		dl_done_list (ohci);
 		spin_unlock (&ohci->lock);
-		if (HC_IS_RUNNING(hcd->state))
-			ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrenable);
 	}
 
 	if (quirk_zfmicro(ohci) && (ints & OHCI_INTR_SF)) {
@@ -1032,6 +1029,13 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		usb_hcd_pnx4008_driver
 #endif
 
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7763)
+#include "ohci-sh.c"
+#define PLATFORM_DRIVER		ohci_hcd_sh_driver
+#endif
+
 
 #ifdef CONFIG_USB_OHCI_HCD_PPC_OF
 #include "ohci-ppc-of.c"
@@ -1048,6 +1052,11 @@ MODULE_LICENSE ("GPL");
 #define SSB_OHCI_DRIVER		ssb_ohci_driver
 #endif
 
+#ifdef CONFIG_MFD_SM501
+#include "ohci-sm501.c"
+#define PLATFORM_DRIVER		ohci_hcd_sm501_driver
+#endif
+
 #if	!defined(PCI_DRIVER) &&		\
 	!defined(PLATFORM_DRIVER) &&	\
 	!defined(OF_PLATFORM_DRIVER) &&	\
@@ -1068,6 +1077,14 @@ static int __init ohci_hcd_mod_init(void)
 	pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
 		sizeof (struct ed), sizeof (struct td));
 
+#ifdef DEBUG
+	ohci_debug_root = debugfs_create_dir("ohci", NULL);
+	if (!ohci_debug_root) {
+		retval = -ENOENT;
+		goto error_debug;
+	}
+#endif
+
 #ifdef PS3_SYSTEM_BUS_DRIVER
 	retval = ps3_ohci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
 	if (retval < 0)
@@ -1130,6 +1147,12 @@ static int __init ohci_hcd_mod_init(void)
 	ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
  error_ps3:
 #endif
+#ifdef DEBUG
+	debugfs_remove(ohci_debug_root);
+	ohci_debug_root = NULL;
+ error_debug:
+#endif
+
 	return retval;
 }
 module_init(ohci_hcd_mod_init);
@@ -1154,6 +1177,9 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef PS3_SYSTEM_BUS_DRIVER
 	ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
+#ifdef DEBUG
+	debugfs_remove(ohci_debug_root);
+#endif
 }
 module_exit(ohci_hcd_mod_exit);
 

drivers/usb/host/ohci-sh.c

@@ -0,0 +1,143 @@
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/platform_device.h>
+
+static int ohci_sh_start(struct usb_hcd *hcd)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
+
+	ohci_hcd_init(ohci);
+	ohci_init(ohci);
+	ohci_run(ohci);
+	hcd->state = HC_STATE_RUNNING;
+	return 0;
+}
+
+static const struct hc_driver ohci_sh_hc_driver = {
+	.description =		hcd_name,
+	.product_desc =		"SuperH OHCI",
+	.hcd_priv_size =	sizeof(struct ohci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq =			ohci_irq,
+	.flags =		HCD_USB11 | HCD_MEMORY,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.start =		ohci_sh_start,
+	.stop =			ohci_stop,
+	.shutdown =		ohci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue =		ohci_urb_enqueue,
+	.urb_dequeue =		ohci_urb_dequeue,
+	.endpoint_disable =	ohci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number =	ohci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data =	ohci_hub_status_data,
+	.hub_control =		ohci_hub_control,
+	.hub_irq_enable =	ohci_rhsc_enable,
+#ifdef	CONFIG_PM
+	.bus_suspend =		ohci_bus_suspend,
+	.bus_resume =		ohci_bus_resume,
+#endif
+	.start_port_reset =	ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+#define resource_len(r) (((r)->end - (r)->start) + 1)
+static int ohci_hcd_sh_probe(struct platform_device *pdev)
+{
+	struct resource *res = NULL;
+	struct usb_hcd *hcd = NULL;
+	int irq = -1;
+	int ret;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		err("platform_get_resource error.");
+		return -ENODEV;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		err("platform_get_irq error.");
+		return -ENODEV;
+	}
+
+	/* initialize hcd */
+	hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
+	if (!hcd) {
+		err("Failed to create hcd");
+		return -ENOMEM;
+	}
+
+	hcd->regs = (void __iomem *)res->start;
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_len(res);
+	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+	if (ret != 0) {
+		err("Failed to add hcd");
+		usb_put_hcd(hcd);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ohci_hcd_sh_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_remove_hcd(hcd);
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+static struct platform_driver ohci_hcd_sh_driver = {
+	.probe		= ohci_hcd_sh_probe,
+	.remove		= ohci_hcd_sh_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver		= {
+		.name	= "sh_ohci",
+		.owner	= THIS_MODULE,
+	},
+};
+

drivers/usb/host/ohci-sm501.c

@@ -0,0 +1,264 @@
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2005 David Brownell
+ * (C) Copyright 2002 Hewlett-Packard Company
+ * (C) Copyright 2008 Magnus Damm
+ *
+ * SM501 Bus Glue - based on ohci-omap.c
+ *
+ * This file is licenced under the GPL.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/sm501.h>
+#include <linux/sm501-regs.h>
+
+static int ohci_sm501_init(struct usb_hcd *hcd)
+{
+	return ohci_init(hcd_to_ohci(hcd));
+}
+
+static int ohci_sm501_start(struct usb_hcd *hcd)
+{
+	struct device *dev = hcd->self.controller;
+	int ret;
+
+	ret = ohci_run(hcd_to_ohci(hcd));
+	if (ret < 0) {
+		dev_err(dev, "can't start %s", hcd->self.bus_name);
+		ohci_stop(hcd);
+	}
+
+	return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static const struct hc_driver ohci_sm501_hc_driver = {
+	.description =		hcd_name,
+	.product_desc =		"SM501 OHCI",
+	.hcd_priv_size =	sizeof(struct ohci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq =			ohci_irq,
+	.flags =		HCD_USB11 | HCD_MEMORY | HCD_LOCAL_MEM,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset =		ohci_sm501_init,
+	.start =		ohci_sm501_start,
+	.stop =			ohci_stop,
+	.shutdown =		ohci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue =		ohci_urb_enqueue,
+	.urb_dequeue =		ohci_urb_dequeue,
+	.endpoint_disable =	ohci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number =	ohci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data =	ohci_hub_status_data,
+	.hub_control =		ohci_hub_control,
+	.hub_irq_enable =	ohci_rhsc_enable,
+#ifdef	CONFIG_PM
+	.bus_suspend =		ohci_bus_suspend,
+	.bus_resume =		ohci_bus_resume,
+#endif
+	.start_port_reset =	ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev)
+{
+	const struct hc_driver *driver = &ohci_sm501_hc_driver;
+	struct device *dev = &pdev->dev;
+	struct resource	*res, *mem;
+	int retval, irq;
+	struct usb_hcd *hcd = 0;
+
+	irq = retval = platform_get_irq(pdev, 0);
+	if (retval < 0)
+		goto err0;
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (mem == NULL) {
+		dev_err(dev, "no resource definition for memory\n");
+		retval = -ENOENT;
+		goto err0;
+	}
+
+	if (!request_mem_region(mem->start, mem->end - mem->start + 1,
+				pdev->name)) {
+		dev_err(dev, "request_mem_region failed\n");
+		retval = -EBUSY;
+		goto err0;
+	}
+
+	/* The sm501 chip is equipped with local memory that may be used
+	 * by on-chip devices such as the video controller and the usb host.
+	 * This driver uses dma_declare_coherent_memory() to make sure
+	 * usb allocations with dma_alloc_coherent() allocate from
+	 * this local memory. The dma_handle returned by dma_alloc_coherent()
+	 * will be an offset starting from 0 for the first local memory byte.
+	 *
+	 * So as long as data is allocated using dma_alloc_coherent() all is
+	 * fine. This is however not always the case - buffers may be allocated
+	 * using kmalloc() - so the usb core needs to be told that it must copy
+	 * data into our local memory if the buffers happen to be placed in
+	 * regular memory. The HCD_LOCAL_MEM flag does just that.
+	 */
+
+	if (!dma_declare_coherent_memory(dev, mem->start,
+					 mem->start - mem->parent->start,
+					 (mem->end - mem->start) + 1,
+					 DMA_MEMORY_MAP |
+					 DMA_MEMORY_EXCLUSIVE)) {
+		dev_err(dev, "cannot declare coherent memory\n");
+		retval = -ENXIO;
+		goto err1;
+	}
+
+	/* allocate, reserve and remap resources for registers */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(dev, "no resource definition for registers\n");
+		retval = -ENOENT;
+		goto err2;
+	}
+
+	hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
+	if (!hcd) {
+		retval = -ENOMEM;
+		goto err2;
+	}
+
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = res->end - res->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,	pdev->name)) {
+		dev_err(dev, "request_mem_region failed\n");
+		retval = -EBUSY;
+		goto err3;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (hcd->regs == NULL) {
+		dev_err(dev, "cannot remap registers\n");
+		retval = -ENXIO;
+		goto err4;
+	}
+
+	ohci_hcd_init(hcd_to_ohci(hcd));
+
+	retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
+	if (retval)
+		goto err4;
+
+	/* enable power and unmask interrupts */
+
+	sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 1);
+	sm501_modify_reg(dev->parent, SM501_IRQ_MASK, 1 << 6, 0);
+
+	return 0;
+err4:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err3:
+	usb_put_hcd(hcd);
+err2:
+	dma_release_declared_memory(dev);
+err1:
+	release_mem_region(mem->start, mem->end - mem->start + 1);
+err0:
+	return retval;
+}
+
+static int ohci_hcd_sm501_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct resource	*mem;
+
+	usb_remove_hcd(hcd);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+	dma_release_declared_memory(&pdev->dev);
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	release_mem_region(mem->start, mem->end - mem->start + 1);
+
+	/* mask interrupts and disable power */
+
+	sm501_modify_reg(pdev->dev.parent, SM501_IRQ_MASK, 0, 1 << 6);
+	sm501_unit_power(pdev->dev.parent, SM501_GATE_USB_HOST, 0);
+
+	platform_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef CONFIG_PM
+static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg)
+{
+	struct device *dev = &pdev->dev;
+	struct ohci_hcd	*ohci = hcd_to_ohci(platform_get_drvdata(pdev));
+
+	if (time_before(jiffies, ohci->next_statechange))
+		msleep(5);
+	ohci->next_statechange = jiffies;
+
+	sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
+	ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
+	dev->power.power_state = PMSG_SUSPEND;
+	return 0;
+}
+
+static int ohci_sm501_resume(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ohci_hcd	*ohci = hcd_to_ohci(platform_get_drvdata(pdev));
+
+	if (time_before(jiffies, ohci->next_statechange))
+		msleep(5);
+	ohci->next_statechange = jiffies;
+
+	sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 1);
+	dev->power.power_state = PMSG_ON;
+	usb_hcd_resume_root_hub(platform_get_drvdata(pdev));
+	return 0;
+}
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Driver definition to register with the SM501 bus
+ */
+static struct platform_driver ohci_hcd_sm501_driver = {
+	.probe		= ohci_hcd_sm501_drv_probe,
+	.remove		= ohci_hcd_sm501_drv_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+#ifdef	CONFIG_PM
+	.suspend	= ohci_sm501_suspend,
+	.resume		= ohci_sm501_resume,
+#endif
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "sm501-usb",
+	},
+};

drivers/usb/host/ohci.h

@@ -408,6 +408,13 @@ struct ohci_hcd {
 	unsigned		eds_scheduled;
 	struct ed		*ed_to_check;
 	unsigned		zf_delay;
+
+#ifdef DEBUG
+	struct dentry		*debug_dir;
+	struct dentry		*debug_async;
+	struct dentry		*debug_periodic;
+	struct dentry		*debug_registers;
+#endif
 };
 
 #ifdef CONFIG_PCI

drivers/usb/host/r8a66597.h

@@ -405,7 +405,7 @@
 
 struct r8a66597_pipe_info {
 	u16 pipenum;
-	u16 address;	/* R8A66597 HCD usb addres */
+	u16 address;	/* R8A66597 HCD usb address */
 	u16 epnum;
 	u16 maxpacket;
 	u16 type;

drivers/usb/image/mdc800.c

@@ -478,8 +478,6 @@ static int mdc800_usb_probe (struct usb_interface *intf,
 				{
 					irq_interval=intf_desc->endpoint [j].desc.bInterval;
 				}
-
-				continue;
 			}
 		}
 		if (mdc800->endpoint[i] == -1)

drivers/usb/misc/cypress_cy7c63.c

@@ -1,7 +1,7 @@
 /*
 * cypress_cy7c63.c
 *
-* Copyright (c) 2006 Oliver Bock (o.bock@fh-wolfenbuettel.de)
+* Copyright (c) 2006-2007 Oliver Bock (bock@tfh-berlin.de)
 *
 *	This driver is based on the Cypress USB Driver by Marcus Maul
 *	(cyport) and the 2.0 version of Greg Kroah-Hartman's
@@ -21,6 +21,9 @@
 *	Supported functions:	Read/Write Ports
 *
 *
+*	For up-to-date information please visit:
+*	http://www.obock.de/kernel/cypress
+*
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License as
 *	published by the Free Software Foundation, version 2.
@@ -31,7 +34,7 @@
 #include <linux/kernel.h>
 #include <linux/usb.h>
 
-#define DRIVER_AUTHOR		"Oliver Bock (o.bock@fh-wolfenbuettel.de)"
+#define DRIVER_AUTHOR		"Oliver Bock (bock@tfh-berlin.de)"
 #define DRIVER_DESC		"Cypress CY7C63xxx USB driver"
 
 #define CYPRESS_VENDOR_ID	0xa2c

drivers/usb/misc/iowarrior.c

@@ -715,7 +715,7 @@ static unsigned iowarrior_poll(struct file *file, poll_table * wait)
  * would use "struct net_driver" instead, and a serial
  * device would use "struct tty_driver".
  */
-static struct file_operations iowarrior_fops = {
+static const struct file_operations iowarrior_fops = {
 	.owner = THIS_MODULE,
 	.write = iowarrior_write,
 	.read = iowarrior_read,

drivers/usb/misc/legousbtower.c

@@ -205,7 +205,7 @@ static DEFINE_MUTEX(open_disc_mutex);
 
 /* Structure to hold all of our device specific stuff */
 struct lego_usb_tower {
-	struct semaphore	sem;		/* locks this structure */
+	struct mutex		lock;		/* locks this structure */
 	struct usb_device*	udev;		/* save off the usb device pointer */
 	unsigned char		minor;		/* the starting minor number for this device */
 
@@ -361,7 +361,7 @@ static int tower_open (struct inode *inode, struct file *file)
 	}
 
 	/* lock this device */
-	if (down_interruptible (&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->lock)) {
 		mutex_unlock(&open_disc_mutex);
 	        retval = -ERESTARTSYS;
 		goto exit;
@@ -421,7 +421,7 @@ static int tower_open (struct inode *inode, struct file *file)
 	file->private_data = dev;
 
 unlock_exit:
-	up (&dev->sem);
+	mutex_unlock(&dev->lock);
 
 exit:
 	dbg(2, "%s: leave, return value %d ", __FUNCTION__, retval);
@@ -448,7 +448,7 @@ static int tower_release (struct inode *inode, struct file *file)
 	}
 
 	mutex_lock(&open_disc_mutex);
-	if (down_interruptible (&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->lock)) {
 	        retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -460,7 +460,9 @@ static int tower_release (struct inode *inode, struct file *file)
 	}
 	if (dev->udev == NULL) {
 		/* the device was unplugged before the file was released */
-		up (&dev->sem);	/* unlock here as tower_delete frees dev */
+
+		/* unlock here as tower_delete frees dev */
+		mutex_unlock(&dev->lock);
 		tower_delete (dev);
 		goto exit;
 	}
@@ -473,7 +475,7 @@ static int tower_release (struct inode *inode, struct file *file)
 	dev->open_count = 0;
 
 unlock_exit:
-	up (&dev->sem);
+	mutex_unlock(&dev->lock);
 
 exit:
 	mutex_unlock(&open_disc_mutex);
@@ -586,7 +588,7 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
 	dev = (struct lego_usb_tower *)file->private_data;
 
 	/* lock this object */
-	if (down_interruptible (&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->lock)) {
 		retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -653,7 +655,7 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
 
 unlock_exit:
 	/* unlock the device */
-	up (&dev->sem);
+	mutex_unlock(&dev->lock);
 
 exit:
 	dbg(2, "%s: leave, return value %d", __FUNCTION__, retval);
@@ -675,7 +677,7 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
 	dev = (struct lego_usb_tower *)file->private_data;
 
 	/* lock this object */
-	if (down_interruptible (&dev->sem)) {
+	if (mutex_lock_interruptible(&dev->lock)) {
 		retval = -ERESTARTSYS;
 		goto exit;
 	}
@@ -737,7 +739,7 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t
 
 unlock_exit:
 	/* unlock the device */
-	up (&dev->sem);
+	mutex_unlock(&dev->lock);
 
 exit:
 	dbg(2, "%s: leave, return value %d", __FUNCTION__, retval);
@@ -862,7 +864,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
 		goto exit;
 	}
 
-	init_MUTEX (&dev->sem);
+	mutex_init(&dev->lock);
 
 	dev->udev = udev;
 	dev->open_count = 0;
@@ -1007,16 +1009,16 @@ static void tower_disconnect (struct usb_interface *interface)
 	/* give back our minor */
 	usb_deregister_dev (interface, &tower_class);
 
-	down (&dev->sem);
+	mutex_lock(&dev->lock);
 	mutex_unlock(&open_disc_mutex);
 
 	/* if the device is not opened, then we clean up right now */
 	if (!dev->open_count) {
-		up (&dev->sem);
+		mutex_unlock(&dev->lock);
 		tower_delete (dev);
 	} else {
 		dev->udev = NULL;
-		up (&dev->sem);
+		mutex_unlock(&dev->lock);
 	}
 
 	info("LEGO USB Tower #%d now disconnected", (minor - LEGO_USB_TOWER_MINOR_BASE));

drivers/usb/misc/sisusbvga/sisusb.c

@@ -323,7 +323,7 @@ sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data,
 			usb_kill_urb(urb);
 			retval = -ETIMEDOUT;
 		} else {
-			/* URB completed within timout */
+			/* URB completed within timeout */
 			retval = urb->status;
 			readbytes = urb->actual_length;
 		}
@@ -3195,20 +3195,6 @@ static int sisusb_probe(struct usb_interface *intf,
 
 	sisusb->present = 1;
 
-#ifdef SISUSB_OLD_CONFIG_COMPAT
-	{
-	int ret;
-	/* Our ioctls are all "32/64bit compatible" */
-	ret =  register_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE, NULL);
-	ret |= register_ioctl32_conversion(SISUSB_GET_CONFIG,      NULL);
-	ret |= register_ioctl32_conversion(SISUSB_COMMAND,         NULL);
-	if (ret)
-		dev_err(&sisusb->sisusb_dev->dev, "Error registering ioctl32 translations\n");
-	else
-		sisusb->ioctl32registered = 1;
-	}
-#endif
-
 	if (dev->speed == USB_SPEED_HIGH) {
 		int initscreen = 1;
 #ifdef INCL_SISUSB_CON
@@ -3271,19 +3257,6 @@ static void sisusb_disconnect(struct usb_interface *intf)
 
 	usb_set_intfdata(intf, NULL);
 
-#ifdef SISUSB_OLD_CONFIG_COMPAT
-	if (sisusb->ioctl32registered) {
-		int ret;
-		sisusb->ioctl32registered = 0;
-		ret =  unregister_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE);
-		ret |= unregister_ioctl32_conversion(SISUSB_GET_CONFIG);
-		ret |= unregister_ioctl32_conversion(SISUSB_COMMAND);
-		if (ret) {
-			dev_err(&sisusb->sisusb_dev->dev, "Error unregistering ioctl32 translations\n");
-		}
-	}
-#endif
-
 	sisusb->present = 0;
 	sisusb->ready = 0;
 

drivers/usb/misc/sisusbvga/sisusb.h

@@ -120,9 +120,6 @@ struct sisusb_usb_data {
 	int isopen;		/* !=0 if open */
 	int present;		/* !=0 if device is present on the bus */
 	int ready;		/* !=0 if device is ready for userland */
-#ifdef SISUSB_OLD_CONFIG_COMPAT
-	int ioctl32registered;
-#endif
 	int numobufs;		/* number of obufs = number of out urbs */
 	char *obuf[NUMOBUFS], *ibuf;	/* transfer buffers */
 	int obufsize, ibufsize;

drivers/usb/misc/usbtest.c

@@ -6,6 +6,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/scatterlist.h>
+#include <linux/mutex.h>
 
 #include <linux/usb.h>
 
@@ -64,7 +65,7 @@ struct usbtest_dev {
 	int			in_iso_pipe;
 	int			out_iso_pipe;
 	struct usb_endpoint_descriptor	*iso_in, *iso_out;
-	struct semaphore	sem;
+	struct mutex		lock;
 
 #define TBUF_SIZE	256
 	u8			*buf;
@@ -1151,6 +1152,7 @@ static int verify_halted (int ep, struct urb *urb)
 		dbg ("ep %02x couldn't get halt status, %d", ep, retval);
 		return retval;
 	}
+	le16_to_cpus(&status);
 	if (status != 1) {
 		dbg ("ep %02x bogus status: %04x != 1", ep, status);
 		return -EINVAL;
@@ -1310,7 +1312,7 @@ static int ctrl_out (struct usbtest_dev *dev,
 		len += vary;
 
 		/* [real world] the "zero bytes IN" case isn't really used.
-		 * hardware can easily trip up in this wierd case, since its
+		 * hardware can easily trip up in this weird case, since its
 		 * status stage is IN, not OUT like other ep0in transfers.
 		 */
 		if (len > length)
@@ -1558,11 +1560,11 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			|| param->sglen < 0 || param->vary < 0)
 		return -EINVAL;
 
-	if (down_interruptible (&dev->sem))
+	if (mutex_lock_interruptible(&dev->lock))
 		return -ERESTARTSYS;
 
 	if (intf->dev.power.power_state.event != PM_EVENT_ON) {
-		up (&dev->sem);
+		mutex_unlock(&dev->lock);
 		return -EHOSTUNREACH;
 	}
 
@@ -1574,7 +1576,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 	    	int	res;
 
 		if (intf->altsetting->desc.bInterfaceNumber) {
-			up (&dev->sem);
+			mutex_unlock(&dev->lock);
 			return -ENODEV;
 		}
 		res = set_altsetting (dev, dev->info->alt);
@@ -1582,7 +1584,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			dev_err (&intf->dev,
 					"set altsetting to %d failed, %d\n",
 					dev->info->alt, res);
-			up (&dev->sem);
+			mutex_unlock(&dev->lock);
 			return res;
 		}
 	}
@@ -1855,7 +1857,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		param->duration.tv_usec += 1000 * 1000;
 		param->duration.tv_sec -= 1;
 	}
-	up (&dev->sem);
+	mutex_unlock(&dev->lock);
 	return retval;
 }
 
@@ -1905,7 +1907,7 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 		return -ENOMEM;
 	info = (struct usbtest_info *) id->driver_info;
 	dev->info = info;
-	init_MUTEX (&dev->sem);
+	mutex_init(&dev->lock);
 
 	dev->intf = intf;
 
@@ -1990,8 +1992,6 @@ static void usbtest_disconnect (struct usb_interface *intf)
 {
 	struct usbtest_dev	*dev = usb_get_intfdata (intf);
 
-	down (&dev->sem);
-
 	usb_set_intfdata (intf, NULL);
 	dev_dbg (&intf->dev, "disconnect\n");
 	kfree (dev);

drivers/usb/mon/mon_bin.c

@@ -1026,6 +1026,8 @@ mon_bin_poll(struct file *file, struct poll_table_struct *wait)
 	return mask;
 }
 
+#if 0
+
 /*
  * open and close: just keep track of how many times the device is
  * mapped, to use the proper memory allocation function.
@@ -1045,33 +1047,31 @@ static void mon_bin_vma_close(struct vm_area_struct *vma)
 /*
  * Map ring pages to user space.
  */
-struct page *mon_bin_vma_nopage(struct vm_area_struct *vma,
-                                unsigned long address, int *type)
+static int mon_bin_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	struct mon_reader_bin *rp = vma->vm_private_data;
 	unsigned long offset, chunk_idx;
 	struct page *pageptr;
 
-	offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT);
+	offset = vmf->pgoff << PAGE_SHIFT;
 	if (offset >= rp->b_size)
-		return NOPAGE_SIGBUS;
+		return VM_FAULT_SIGBUS;
 	chunk_idx = offset / CHUNK_SIZE;
 	pageptr = rp->b_vec[chunk_idx].pg;
 	get_page(pageptr);
-	if (type)
-		*type = VM_FAULT_MINOR;
-	return pageptr;
+	vmf->page = pageptr;
+	return 0;
 }
 
 struct vm_operations_struct mon_bin_vm_ops = {
 	.open =     mon_bin_vma_open,
 	.close =    mon_bin_vma_close,
-	.nopage =   mon_bin_vma_nopage,
+	.fault =    mon_bin_vma_fault,
 };
 
 int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
 {
-	/* don't do anything here: "nopage" will set up page table entries */
+	/* don't do anything here: "fault" will set up page table entries */
 	vma->vm_ops = &mon_bin_vm_ops;
 	vma->vm_flags |= VM_RESERVED;
 	vma->vm_private_data = filp->private_data;
@@ -1079,7 +1079,9 @@ int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
 	return 0;
 }
 
-struct file_operations mon_fops_binary = {
+#endif  /*  0  */
+
+static const struct file_operations mon_fops_binary = {
 	.owner =	THIS_MODULE,
 	.open =		mon_bin_open,
 	.llseek =	no_llseek,

drivers/usb/serial/Kconfig

@@ -2,10 +2,7 @@
 # USB Serial device configuration
 #
 
-menu "USB Serial Converter support"
-	depends on USB!=n
-
-config USB_SERIAL
+menuconfig USB_SERIAL
 	tristate "USB Serial Converter support"
 	depends on USB
 	---help---
@@ -20,6 +17,8 @@ config USB_SERIAL
 	  To compile this driver as a module, choose M here: the
 	  module will be called usbserial.
 
+if USB_SERIAL
+
 config USB_SERIAL_CONSOLE
 	bool "USB Serial Console device support (EXPERIMENTAL)"
 	depends on USB_SERIAL=y && EXPERIMENTAL
@@ -43,6 +42,12 @@ config USB_SERIAL_CONSOLE
 
 	  If unsure, say N.
 
+config USB_EZUSB
+	bool "Functions for loading firmware on EZUSB chips"
+	depends on USB_SERIAL
+	help
+	    Say Y here if you need EZUSB device support.
+
 config USB_SERIAL_GENERIC
 	bool "USB Generic Serial Driver"
 	depends on USB_SERIAL
@@ -105,6 +110,7 @@ config USB_SERIAL_CH341
 config USB_SERIAL_WHITEHEAT
 	tristate "USB ConnectTech WhiteHEAT Serial Driver"
 	depends on USB_SERIAL
+	select USB_EZUSB
 	help
 	  Say Y here if you want to use a ConnectTech WhiteHEAT 4 port
 	  USB to serial converter device.
@@ -282,9 +288,21 @@ config USB_SERIAL_IPW
 	  To compile this driver as a module, choose M here: the
 	  module will be called ipw.
 
+config USB_SERIAL_IUU
+	tristate "USB Infinity USB Unlimited Phoenix Driver (Experimental)"
+	depends on USB_SERIAL && EXPERIMENTAL
+	help
+	  Say Y here if you want to use a IUU in phoenix mode and get
+	  an extra ttyUSBx device. More information available on
+	  http://eczema.ecze.com/iuu_phoenix.html
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called iuu_phoenix.o
+
 config USB_SERIAL_KEYSPAN_PDA
 	tristate "USB Keyspan PDA Single Port Serial Driver"
 	depends on USB_SERIAL
+	select USB_EZUSB
 	help
 	  Say Y here if you want to use a Keyspan PDA single port USB to
 	  serial converter device.  This driver makes use of firmware
@@ -296,6 +314,7 @@ config USB_SERIAL_KEYSPAN_PDA
 config USB_SERIAL_KEYSPAN
 	tristate "USB Keyspan USA-xxx Serial Driver"
 	depends on USB_SERIAL
+	select USB_EZUSB
 	---help---
 	  Say Y here if you want to use Keyspan USB to serial converter
 	  devices.  This driver makes use of Keyspan's official firmware
@@ -538,6 +557,7 @@ config USB_SERIAL_CYBERJACK
 config USB_SERIAL_XIRCOM
 	tristate "USB Xircom / Entregra Single Port Serial Driver"
 	depends on USB_SERIAL
+	select USB_EZUSB
 	help
 	  Say Y here if you want to use a Xircom or Entregra single port USB to
 	  serial converter device.  This driver makes use of firmware
@@ -585,11 +605,4 @@ config USB_SERIAL_DEBUG
 	  To compile this driver as a module, choose M here: the
 	  module will be called usb-debug.
 
-config USB_EZUSB
-	bool
-	depends on USB_SERIAL_KEYSPAN_PDA || USB_SERIAL_XIRCOM || USB_SERIAL_KEYSPAN || USB_SERIAL_WHITEHEAT
-	default y
-
-
-endmenu
-
+endif # USB_SERIAL

drivers/usb/serial/Makefile

@@ -30,6 +30,7 @@ obj-$(CONFIG_USB_SERIAL_GARMIN)			+= garmin_gps.o
 obj-$(CONFIG_USB_SERIAL_HP4X)			+= hp4x.o
 obj-$(CONFIG_USB_SERIAL_IPAQ)			+= ipaq.o
 obj-$(CONFIG_USB_SERIAL_IPW)			+= ipw.o
+obj-$(CONFIG_USB_SERIAL_IUU)			+= iuu_phoenix.o
 obj-$(CONFIG_USB_SERIAL_IR)			+= ir-usb.o
 obj-$(CONFIG_USB_SERIAL_KEYSPAN)		+= keyspan.o
 obj-$(CONFIG_USB_SERIAL_KEYSPAN_PDA)		+= keyspan_pda.o

drivers/usb/serial/airprime.c

@@ -217,7 +217,10 @@ static void airprime_close(struct usb_serial_port *port, struct file * filp)
 	priv->rts_state = 0;
 	priv->dtr_state = 0;
 
-	airprime_send_setup(port);
+	mutex_lock(&port->serial->disc_mutex);
+	if (!port->serial->disconnected)
+		airprime_send_setup(port);
+	mutex_lock(&port->serial->disc_mutex);
 
 	for (i = 0; i < NUM_READ_URBS; ++i) {
 		usb_kill_urb (priv->read_urbp[i]);

drivers/usb/serial/ark3116.c

@@ -151,8 +151,10 @@ static int ark3116_attach(struct usb_serial *serial)
 	return 0;
 
 cleanup:
-	for (--i; i >= 0; --i)
+	for (--i; i >= 0; --i) {
+		kfree(usb_get_serial_port_data(serial->port[i]));
 		usb_set_serial_port_data(serial->port[i], NULL);
+	}
 	return -ENOMEM;
 }
 

drivers/usb/serial/belkin_sa.c

@@ -350,14 +350,12 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
 	unsigned long control_state;
 	int bad_flow_control;
 	speed_t baud;
+	struct ktermios *termios = port->tty->termios;
 	
-	if ((!port->tty) || (!port->tty->termios)) {
-		dbg ("%s - no tty or termios structure", __FUNCTION__);
-		return;
-	}
+	iflag = termios->c_iflag;
+	cflag = termios->c_cflag;
 
-	iflag = port->tty->termios->c_iflag;
-	cflag = port->tty->termios->c_cflag;
+	termios->c_cflag &= ~CMSPAR;
 
 	/* get a local copy of the current port settings */
 	spin_lock_irqsave(&priv->lock, flags);
@@ -369,33 +367,30 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
 	old_cflag = old_termios->c_cflag;
 
 	/* Set the baud rate */
-	if( (cflag&CBAUD) != (old_cflag&CBAUD) ) {
+	if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
 		/* reassert DTR and (maybe) RTS on transition from B0 */
 		if( (old_cflag&CBAUD) == B0 ) {
 			control_state |= (TIOCM_DTR|TIOCM_RTS);
 			if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 1) < 0)
 				err("Set DTR error");
 			/* don't set RTS if using hardware flow control */
-			if (!(old_cflag&CRTSCTS) )
+			if (!(old_cflag & CRTSCTS))
 				if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 1) < 0)
 					err("Set RTS error");
 		}
 	}
 
 	baud = tty_get_baud_rate(port->tty);
-	if (baud == 0) {
-		dbg("%s - tty_get_baud_rate says 0 baud", __FUNCTION__);
-		return;
-	}
-	urb_value = BELKIN_SA_BAUD(baud);
-	/* Clip to maximum speed */
-	if (urb_value == 0)
-		urb_value = 1;
-	/* Turn it back into a resulting real baud rate */
-	baud = BELKIN_SA_BAUD(urb_value);
-	/* FIXME: Once the tty updates are done then push this back to the tty */
-
-	if ((cflag & CBAUD) != B0 ) {
+	if (baud) {
+		urb_value = BELKIN_SA_BAUD(baud);
+		/* Clip to maximum speed */
+		if (urb_value == 0)
+			urb_value = 1;
+		/* Turn it back into a resulting real baud rate */
+		baud = BELKIN_SA_BAUD(urb_value);
+
+		/* Report the actual baud rate back to the caller */
+		tty_encode_baud_rate(port->tty, baud, baud);
 		if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0)
 			err("Set baudrate error");
 	} else {

drivers/usb/serial/console.c

@@ -64,8 +64,8 @@ static int usb_console_setup(struct console *co, char *options)
 	struct usb_serial *serial;
 	struct usb_serial_port *port;
 	int retval = 0;
-	struct tty_struct *tty;
-	struct ktermios *termios;
+	struct tty_struct *tty = NULL;
+	struct ktermios *termios = NULL, dummy;
 
 	dbg ("%s", __FUNCTION__);
 
@@ -133,11 +133,14 @@ static int usb_console_setup(struct console *co, char *options)
 	}
 	co->cflag = cflag;
 
-	/* grab the first serial port that happens to be connected */
-	serial = usb_serial_get_by_index(0);
+	/*
+	 * no need to check the index here: if the index is wrong, console
+	 * code won't call us
+	 */
+	serial = usb_serial_get_by_index(co->index);
 	if (serial == NULL) {
 		/* no device is connected yet, sorry :( */
-		err ("No USB device connected to ttyUSB0");
+		err ("No USB device connected to ttyUSB%i", co->index);
 		return -ENODEV;
 	}
 
@@ -148,49 +151,64 @@ static int usb_console_setup(struct console *co, char *options)
 	 
 	++port->open_count;
 	if (port->open_count == 1) {
+		if (serial->type->set_termios) {
+			/*
+			 * allocate a fake tty so the driver can initialize
+			 * the termios structure, then later call set_termios to
+			 * configure according to command line arguments
+			 */
+			tty = kzalloc(sizeof(*tty), GFP_KERNEL);
+			if (!tty) {
+				retval = -ENOMEM;
+				err("no more memory");
+				goto reset_open_count;
+			}
+			termios = kzalloc(sizeof(*termios), GFP_KERNEL);
+			if (!termios) {
+				retval = -ENOMEM;
+				err("no more memory");
+				goto free_tty;
+			}
+			memset(&dummy, 0, sizeof(struct ktermios));
+			tty->termios = termios;
+			port->tty = tty;
+		}
+
 		/* only call the device specific open if this 
 		 * is the first time the port is opened */
 		if (serial->type->open)
 			retval = serial->type->open(port, NULL);
 		else
 			retval = usb_serial_generic_open(port, NULL);
-		if (retval)
-			port->open_count = 0;
-	}
 
-	if (retval) {
-		err ("could not open USB console port");
-		return retval;
-	}
-
-	if (serial->type->set_termios) {
-		struct ktermios dummy;
-		/* build up a fake tty structure so that the open call has something
-		 * to look at to get the cflag value */
-		tty = kzalloc(sizeof(*tty), GFP_KERNEL);
-		if (!tty) {
-			err ("no more memory");
-			return -ENOMEM;
+		if (retval) {
+			err("could not open USB console port");
+			goto free_termios;
 		}
-		termios = kzalloc(sizeof(*termios), GFP_KERNEL);
-		if (!termios) {
-			err ("no more memory");
-			kfree (tty);
-			return -ENOMEM;
-		}
-		memset(&dummy, 0, sizeof(struct ktermios));
-		termios->c_cflag = cflag;
-		tty->termios = termios;
-		port->tty = tty;
 
-		/* set up the initial termios settings */
-		serial->type->set_termios(port, &dummy);
-		port->tty = NULL;
-		kfree (termios);
-		kfree (tty);
+		if (serial->type->set_termios) {
+			termios->c_cflag = cflag;
+			serial->type->set_termios(port, &dummy);
+
+			port->tty = NULL;
+			kfree(termios);
+			kfree(tty);
+		}
 	}
 
+	port->console = 1;
+	retval = 0;
+
+out:
 	return retval;
+free_termios:
+	kfree(termios);
+	port->tty = NULL;
+free_tty:
+	kfree(tty);
+reset_open_count:
+	port->open_count = 0;
+goto out;
 }
 
 static void usb_console_write(struct console *co, const char *buf, unsigned count)

drivers/usb/serial/cp2101.c

@@ -59,6 +59,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
 	{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
 	{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
+	{ USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
 	{ USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
 	{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
 	{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
@@ -76,8 +77,13 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
+	{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
+	{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
+	{ USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */
+	{ USB_DEVICE(0x10C4, 0xF004) }, /* Elan Digital Systems USBcount50 */
 	{ USB_DEVICE(0x10C5, 0xEA61) }, /* Silicon Labs MobiData GPRS USB Modem */
 	{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
+	{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
 	{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
 	{ } /* Terminating Entry */
 };
@@ -342,7 +348,10 @@ static void cp2101_close (struct usb_serial_port *port, struct file * filp)
 	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 
-	cp2101_set_config_single(port, CP2101_UART, UART_DISABLE);
+	mutex_lock(&port->serial->disc_mutex);
+	if (!port->serial->disconnected)
+		cp2101_set_config_single(port, CP2101_UART, UART_DISABLE);
+	mutex_unlock(&port->serial->disc_mutex);
 }
 
 /*

drivers/usb/serial/cyberjack.c

@@ -319,7 +319,6 @@ static void cyberjack_read_int_callback( struct urb *urb )
 	/* React only to interrupts signaling a bulk_in transfer */
 	if( (urb->actual_length==4) && (data[0]==0x01) ) {
 		short old_rdtodo;
-		int result;
 
 		/* This is a announcement of coming bulk_ins. */
 		unsigned short size = ((unsigned short)data[3]<<8)+data[2]+3;

drivers/usb/serial/cypress_m8.c

@@ -682,7 +682,6 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp)
 {
 	struct cypress_private *priv = usb_get_serial_port_data(port);
 	unsigned int c_cflag;
-	unsigned long flags;
 	int bps;
 	long timeout;
 	wait_queue_t wait;
@@ -690,7 +689,7 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp)
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
 	/* wait for data to drain from buffer */
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irq(&priv->lock);
 	timeout = CYPRESS_CLOSING_WAIT;
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(&port->tty->write_wait, &wait);
@@ -698,18 +697,25 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp)
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (cypress_buf_data_avail(priv->buf) == 0
 		|| timeout == 0 || signal_pending(current)
-		|| !usb_get_intfdata(port->serial->interface))
+		/* without mutex, allowed due to harmless failure mode */
+		|| port->serial->disconnected)
 			break;
-		spin_unlock_irqrestore(&priv->lock, flags);
+		spin_unlock_irq(&priv->lock);
 		timeout = schedule_timeout(timeout);
-		spin_lock_irqsave(&priv->lock, flags);
+		spin_lock_irq(&priv->lock);
 	}
 	set_current_state(TASK_RUNNING);
 	remove_wait_queue(&port->tty->write_wait, &wait);
 	/* clear out any remaining data in the buffer */
 	cypress_buf_clear(priv->buf);
-	spin_unlock_irqrestore(&priv->lock, flags);
-	
+	spin_unlock_irq(&priv->lock);
+
+	/* writing is potentially harmful, lock must be taken */
+	mutex_lock(&port->serial->disc_mutex);
+	if (port->serial->disconnected) {
+		mutex_unlock(&port->serial->disc_mutex);
+		return;
+	}
 	/* wait for characters to drain from device */
 	bps = tty_get_baud_rate(port->tty);
 	if (bps > 1200)
@@ -727,10 +733,10 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp)
 		if (c_cflag & HUPCL) {
 			/* drop dtr and rts */
 			priv = usb_get_serial_port_data(port);
-			spin_lock_irqsave(&priv->lock, flags);
+			spin_lock_irq(&priv->lock);
 			priv->line_control = 0;
 			priv->cmd_ctrl = 1;
-			spin_unlock_irqrestore(&priv->lock, flags);
+			spin_unlock_irq(&priv->lock);
 			cypress_write(port, NULL, 0);
 		}
 	}
@@ -738,6 +744,7 @@ static void cypress_close(struct usb_serial_port *port, struct file * filp)
 	if (stats)
 		dev_info (&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n",
 		          priv->bytes_in, priv->bytes_out, priv->cmd_count);
+	mutex_unlock(&port->serial->disc_mutex);
 } /* cypress_close */
 
 

drivers/usb/serial/digi_acceleport.c

@@ -1405,19 +1405,19 @@ static void digi_close(struct usb_serial_port *port, struct file *filp)
 	unsigned char buf[32];
 	struct tty_struct *tty = port->tty;
 	struct digi_port *priv = usb_get_serial_port_data(port);
-	unsigned long flags = 0;
 
 	dbg("digi_close: TOP: port=%d, open_count=%d",
 		priv->dp_port_num, port->open_count);
 
+	mutex_lock(&port->serial->disc_mutex);
 	/* if disconnected, just clear flags */
-	if (!usb_get_intfdata(port->serial->interface))
+	if (port->serial->disconnected)
 		goto exit;
 
 	/* do cleanup only after final close on this port */
-	spin_lock_irqsave(&priv->dp_port_lock, flags);
+	spin_lock_irq(&priv->dp_port_lock);
 	priv->dp_in_close = 1;
-	spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+	spin_unlock_irq(&priv->dp_port_lock);
 
 	/* tell line discipline to process only XON/XOFF */
 	tty->closing = 1;
@@ -1482,11 +1482,12 @@ static void digi_close(struct usb_serial_port *port, struct file *filp)
 	}
 	tty->closing = 0;
 exit:
-	spin_lock_irqsave(&priv->dp_port_lock, flags);
+	spin_lock_irq(&priv->dp_port_lock);
 	priv->dp_write_urb_in_use = 0;
 	priv->dp_in_close = 0;
 	wake_up_interruptible(&priv->dp_close_wait);
-	spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+	spin_unlock_irq(&priv->dp_port_lock);
+	mutex_unlock(&port->serial->disc_mutex);
 	dbg("digi_close: done");
 }