Input: xpad - add support for Xbox 360 gamepad

Xbox 360 gamepad is slightly different then the previous model so it has
its own version of process_packet method. Detection of this new device
relies on USB_DEVICE_INTERFACE_PROTOCOL macro. This device got vendor
specific subclass so it can't be matched with USB_INTERFACE_INFO and
we need only one interface protocol from four availaible. It means
USB_DEVICE can't be used either.

Added xpad360_btn structure with additional buttons for x360 gamepad.
Added xtype into xpad_device structure to distinguish between different
types of xbox devices.

Signed-off-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/joystick/xpad.c

@@ -8,6 +8,7 @@
  *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
  *               2005 Dominic Cerquetti <binary1230@yahoo.com>
  *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ *               2007 Jan Kratochvil <honza@jikos.cz>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -28,6 +29,7 @@
  *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
  *  - the iForce driver    drivers/char/joystick/iforce.c
  *  - the skeleton-driver  drivers/usb/usb-skeleton.c
+ *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
  *
  * Thanks to:
  *  - ITO Takayuki for providing essential xpad information on his website
@@ -88,6 +90,9 @@
 #define MAP_DPAD_TO_AXES       1
 #define MAP_DPAD_UNKNOWN       -1
 
+#define XTYPE_XBOX        0
+#define XTYPE_XBOX360     1
+
 static int dpad_to_buttons;
 module_param(dpad_to_buttons, bool, S_IRUGO);
 MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
@@ -97,40 +102,42 @@ static const struct xpad_device {
 	u16 idProduct;
 	char *name;
 	u8 dpad_mapping;
+	u8 xtype;
 } xpad_device[] = {
-	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES },
-	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES },
-	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES },
-	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES },
-	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS },
-	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES },
-	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES },
-	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES },
-	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES },
-	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS },
-	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES },
-	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS },
-	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES },
-	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES },
-	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES },
-	{ 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES },
-	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES},
-	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES },
-	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES },
-	{ 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES },
-	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES },
-	{ 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES },
-	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES },
-	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES },
-	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS },
-	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS },
-	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES },
-	{ 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN }
+	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
+	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+	{ 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_XBOX }
 };
 
 static const signed short xpad_btn[] = {
@@ -146,6 +153,12 @@ static const signed short xpad_btn_pad[] = {
 	-1				/* terminating entry */
 };
 
+static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
+	BTN_TL, BTN_TR,		/* Button LB/RB */
+	BTN_MODE,		/* The big X button */
+	-1
+};
+
 static const signed short xpad_abs[] = {
 	ABS_X, ABS_Y,		/* left stick */
 	ABS_RX, ABS_RY,		/* right stick */
@@ -159,8 +172,12 @@ static const signed short xpad_abs_pad[] = {
 	-1			/* terminating entry */
 };
 
+/* Xbox 360 has a vendor-specific (sub)class, so we cannot match it with only
+ * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols,
+ * but we need only one of them. */
 static struct usb_device_id xpad_table [] = {
 	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
+	{ USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) },	/* X-Box 360 controller */
 	{ }
 };
 
@@ -177,6 +194,7 @@ struct usb_xpad {
 	char phys[65];			/* physical device path */
 
 	int dpad_mapping;		/* map d-pad to buttons or to axes */
+	int xtype;			/* type of xbox device */
 };
 
 /*
@@ -235,6 +253,64 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
 	input_sync(dev);
 }
 
+/*
+ *	xpad360_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem. It is version for xbox 360 controller
+ *
+ *	The used report descriptor was taken from:
+ *		http://www.free60.org/wiki/Gamepad
+ */
+
+static void xpad360_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+	struct input_dev *dev = xpad->dev;
+
+	/* digital pad */
+	if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) {
+		input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x01) - !!((data[2] & 0x08) >> 3));
+		input_report_abs(dev, ABS_HAT0Y, !!((data[2] & 0x02) >> 1) - !!((data[2] & 0x04) >> 2));
+	} else if ( xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS ) {
+		/* dpad as buttons (right, left, down, up) */
+		input_report_key(dev, BTN_RIGHT, (data[2] & 0x01));
+		input_report_key(dev, BTN_LEFT, (data[2] & 0x08) >> 3);
+		input_report_key(dev, BTN_0, (data[2] & 0x02) >> 1);
+		input_report_key(dev, BTN_1, (data[2] & 0x04) >> 2);
+	}
+
+	/* start/back buttons */
+	input_report_key(dev, BTN_START,  (data[2] & 0x10) >> 4);
+	input_report_key(dev, BTN_BACK,   (data[2] & 0x20) >> 5);
+
+	/* stick press left/right */
+	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+	/* buttons A,B,X,Y,TL,TR and MODE */
+	input_report_key(dev, BTN_A, (data[3] & 0x10) >> 4);
+	input_report_key(dev, BTN_B, (data[3] & 0x20) >> 5);
+	input_report_key(dev, BTN_X, (data[3] & 0x40) >> 6);
+	input_report_key(dev, BTN_Y, (data[3] & 0x80) >> 7);
+	input_report_key(dev, BTN_TL, data[3] & 0x01 );
+	input_report_key(dev, BTN_TR, (data[3] & 0x02) >> 1);
+	input_report_key(dev, BTN_MODE, (data[3] & 0x04) >> 2);
+
+	/* left stick */
+	input_report_abs(dev, ABS_X, (__s16) (((__s16)data[7] << 8) | (__s16)data[6]));
+	input_report_abs(dev, ABS_Y, ~(__s16) (((__s16)data[9] << 8) | (__s16)data[8]));
+
+	/* right stick */
+	input_report_abs(dev, ABS_RY, ~(__s16) (((__s16)data[13] << 8) | (__s16)data[12]));
+	input_report_abs(dev, ABS_RX, (__s16) (((__s16)data[11] << 8) | (__s16)data[10]));
+
+	/* triggers left/right */
+	input_report_abs(dev, ABS_Z, data[4]);
+	input_report_abs(dev, ABS_RZ, data[5]);
+
+	input_sync(dev);
+}
+
 static void xpad_irq_in(struct urb *urb)
 {
 	struct usb_xpad *xpad = urb->context;
@@ -255,7 +331,10 @@ static void xpad_irq_in(struct urb *urb)
 		goto exit;
 	}
 
-	xpad_process_packet(xpad, 0, xpad->idata);
+	if (xpad->xtype == XTYPE_XBOX360)
+		xpad360_process_packet(xpad, 0, xpad->idata);
+	else
+		xpad_process_packet(xpad, 0, xpad->idata);
 
 exit:
 	retval = usb_submit_urb (urb, GFP_ATOMIC);
@@ -335,6 +414,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
 
 	xpad->udev = udev;
 	xpad->dpad_mapping = xpad_device[i].dpad_mapping;
+	xpad->xtype = xpad_device[i].xtype;
 	if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
 		xpad->dpad_mapping = dpad_to_buttons;
 	xpad->dev = input_dev;
@@ -356,6 +436,9 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
 	/* set up buttons */
 	for (i = 0; xpad_btn[i] >= 0; i++)
 		set_bit(xpad_btn[i], input_dev->keybit);
+	if (xpad->xtype == XTYPE_XBOX360)
+		for (i = 0; xpad360_btn[i] >= 0; i++)
+			set_bit(xpad360_btn[i], input_dev->keybit);
 	if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS)
 		for (i = 0; xpad_btn_pad[i] >= 0; i++)
 			set_bit(xpad_btn_pad[i], input_dev->keybit);