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@@ -0,0 +1,205 @@
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+/*
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+ * Support for the Maxtor OneTouch USB hard drive's button
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+ *
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+ * Current development and maintenance by:
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+ * Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
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+ *
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+ * Initial work by:
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+ * Copyright (c) 2003 Erik Thyrén <erth7411@student.uu.se>
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+ *
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+ * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
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+ *
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+ */
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+
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ *
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+ */
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+
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+#include <linux/config.h>
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+#include <linux/kernel.h>
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+#include <linux/input.h>
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+#include <linux/init.h>
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+#include <linux/slab.h>
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+#include <linux/module.h>
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+#include <linux/usb.h>
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+#include "usb.h"
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+#include "onetouch.h"
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+#include "debug.h"
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+
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+void onetouch_release_input(void *onetouch_);
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+
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+struct usb_onetouch {
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+ char name[128];
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+ char phys[64];
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+ struct input_dev dev; /* input device interface */
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+ struct usb_device *udev; /* usb device */
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+
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+ struct urb *irq; /* urb for interrupt in report */
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+ unsigned char *data; /* input data */
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+ dma_addr_t data_dma;
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+};
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+
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+static void usb_onetouch_irq(struct urb *urb, struct pt_regs *regs)
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+{
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+ struct usb_onetouch *onetouch = urb->context;
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+ signed char *data = onetouch->data;
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+ struct input_dev *dev = &onetouch->dev;
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+ int status;
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+
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+ switch (urb->status) {
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+ case 0: /* success */
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+ break;
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+ case -ECONNRESET: /* unlink */
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+ case -ENOENT:
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+ case -ESHUTDOWN:
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+ return;
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+ /* -EPIPE: should clear the halt */
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+ default: /* error */
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+ goto resubmit;
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+ }
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+
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+ input_regs(dev, regs);
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+
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+ input_report_key(&onetouch->dev, ONETOUCH_BUTTON,
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+ data[0] & 0x02);
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+
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+ input_sync(dev);
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+resubmit:
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+ status = usb_submit_urb (urb, SLAB_ATOMIC);
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+ if (status)
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+ err ("can't resubmit intr, %s-%s/input0, status %d",
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+ onetouch->udev->bus->bus_name,
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+ onetouch->udev->devpath, status);
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+}
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+
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+static int usb_onetouch_open(struct input_dev *dev)
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+{
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+ struct usb_onetouch *onetouch = dev->private;
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+
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+ onetouch->irq->dev = onetouch->udev;
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+ if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
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+ err("usb_submit_urb failed");
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+ return -EIO;
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+ }
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+
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+ return 0;
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+}
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+
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+static void usb_onetouch_close(struct input_dev *dev)
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+{
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+ struct usb_onetouch *onetouch = dev->private;
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+
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+ usb_kill_urb(onetouch->irq);
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+}
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+
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+int onetouch_connect_input(struct us_data *ss)
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+{
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+ struct usb_device *udev = ss->pusb_dev;
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+ struct usb_host_interface *interface;
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+ struct usb_endpoint_descriptor *endpoint;
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+ struct usb_onetouch *onetouch;
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+ int pipe, maxp;
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+ char path[64];
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+
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+ interface = ss->pusb_intf->cur_altsetting;
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+
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+ endpoint = &interface->endpoint[2].desc;
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+ if(!(endpoint->bEndpointAddress & 0x80))
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+ return -ENODEV;
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+ if((endpoint->bmAttributes & 3) != 3)
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+ return -ENODEV;
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+
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+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
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+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
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+
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+ if (!(onetouch = kcalloc(1, sizeof(struct usb_onetouch), GFP_KERNEL)))
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+ return -ENOMEM;
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+
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+ onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN, SLAB_ATOMIC, &onetouch->data_dma);
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+ if (!onetouch->data){
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+ kfree(onetouch);
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+ return -ENOMEM;
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+ }
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+
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+ onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
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+ if (!onetouch->irq){
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+ kfree(onetouch);
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+ usb_buffer_free(udev, ONETOUCH_PKT_LEN, onetouch->data, onetouch->data_dma);
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+ return -ENODEV;
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+ }
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+
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+
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+ onetouch->udev = udev;
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+
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+ set_bit(EV_KEY, onetouch->dev.evbit);
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+ set_bit(ONETOUCH_BUTTON, onetouch->dev.keybit);
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+ clear_bit(0, onetouch->dev.keybit);
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+
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+ onetouch->dev.private = onetouch;
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+ onetouch->dev.open = usb_onetouch_open;
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+ onetouch->dev.close = usb_onetouch_close;
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+
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+ usb_make_path(udev, path, 64);
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+ sprintf(onetouch->phys, "%s/input0", path);
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+
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+ onetouch->dev.name = onetouch->name;
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+ onetouch->dev.phys = onetouch->phys;
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+
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+ onetouch->dev.id.bustype = BUS_USB;
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+ onetouch->dev.id.vendor = le16_to_cpu(udev->descriptor.idVendor);
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+ onetouch->dev.id.product = le16_to_cpu(udev->descriptor.idProduct);
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+ onetouch->dev.id.version = le16_to_cpu(udev->descriptor.bcdDevice);
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+
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+ onetouch->dev.dev = &udev->dev;
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+
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+ if (udev->manufacturer)
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+ strcat(onetouch->name, udev->manufacturer);
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+ if (udev->product)
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+ sprintf(onetouch->name, "%s %s", onetouch->name,
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+ udev->product);
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+ if (!strlen(onetouch->name))
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+ sprintf(onetouch->name, "Maxtor Onetouch %04x:%04x",
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+ onetouch->dev.id.vendor, onetouch->dev.id.product);
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+
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+ usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
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+ (maxp > 8 ? 8 : maxp),
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+ usb_onetouch_irq, onetouch, endpoint->bInterval);
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+ onetouch->irq->transfer_dma = onetouch->data_dma;
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+ onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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+
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+ ss->extra_destructor = onetouch_release_input;
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+ ss->extra = onetouch;
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+
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+ input_register_device(&onetouch->dev);
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+ printk(KERN_INFO "usb-input: %s on %s\n", onetouch->dev.name, path);
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+
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+ return 0;
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+}
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+
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+void onetouch_release_input(void *onetouch_)
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+{
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+ struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;
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+
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+ if (onetouch) {
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+ usb_kill_urb(onetouch->irq);
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+ input_unregister_device(&onetouch->dev);
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+ usb_free_urb(onetouch->irq);
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+ usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
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+ onetouch->data, onetouch->data_dma);
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+ printk(KERN_INFO "Maxtor Onetouch %04x:%04x Deregistered\n",
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+ onetouch->dev.id.vendor, onetouch->dev.id.product);
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+ }
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+}
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Matthew Dharm