[PATCH 2/3] xpad.c: Initial support for xbox360 gamepad.
From: Jan Kratochvil <hidden>
Date: 2007-05-02 15:05:41
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. Signed-off-by: Jan Kratochvil <redacted> --- drivers/usb/input/xpad.c | 80 +++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 79 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/input/xpad.c b/drivers/usb/input/xpad.c
index 2a20aa2..bac9ec2 100644
--- a/drivers/usb/input/xpad.c
+++ b/drivers/usb/input/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 +90,7 @@ #define XPAD_FLAGS_DPAD_TO_BUTTONS (1 << 0) #define XPAD_FLAGS_DPAD_TO_AXES (1 << 1) #define XPAD_FLAGS_DPAD_UNKNOWN (1 << 2) +#define XPAD_FLAGS_XBOX360 (1 << 3) static int dpad_to_buttons; module_param(dpad_to_buttons, bool, S_IRUGO);
@@ -130,6 +133,7 @@ static const struct xpad_device { { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", XPAD_FLAGS_DPAD_TO_AXES }, { 0x12ab, 0x8809, "Xbox DDR dancepad", XPAD_FLAGS_DPAD_TO_BUTTONS }, { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", XPAD_FLAGS_DPAD_TO_BUTTONS }, + { 0x045e, 0x028e, "Microsoft X-Box 360 pad", XPAD_FLAGS_DPAD_TO_AXES | XPAD_FLAGS_XBOX360 }, { 0xffff, 0xffff, "Chinese-made Xbox Controller", XPAD_FLAGS_DPAD_TO_AXES }, { 0x0000, 0x0000, "Generic X-Box pad", XPAD_FLAGS_DPAD_UNKNOWN } };
@@ -140,6 +144,12 @@ static const signed short xpad_btn[] = { -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 +}; + /* only used if XPAD_FLAGS_DPAD_TO_BUTTONS */ static const signed short xpad_btn_pad[] = { BTN_LEFT, BTN_RIGHT, /* d-pad left, right */
@@ -160,8 +170,12 @@ 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 */ { } };
@@ -236,6 +250,64 @@ 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->flags & XPAD_FLAGS_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->flags & XPAD_FLAGS_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;
@@ -256,7 +328,10 @@ static void xpad_irq_in(struct urb *urb) goto exit; } - xpad_process_packet(xpad, 0, xpad->idata); + if (xpad->flags & XPAD_FLAGS_XBOX360) + xpad360_process_packet(xpad, 0, xpad->idata); + else + xpad_process_packet(xpad, 0, xpad->idata); exit: retval = usb_submit_urb (urb, GFP_ATOMIC);
@@ -360,6 +435,9 @@ 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->flags & XPAD_FLAGS_XBOX360) + for (i = 0; xpad360_btn[i] >= 0; i++) + set_bit(xpad360_btn[i], input_dev->keybit); if (xpad->flags & XPAD_FLAGS_DPAD_TO_BUTTONS) for (i = 0; xpad_btn_pad[i] >= 0; i++) set_bit(xpad_btn_pad[i], input_dev->keybit);
--
1.5.0.6
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