Input: xpad - remove mouse buttons and axes for dance pads

Dance pads don't have any axes/sticks, only buttons for directions. For
example buttons like left+right will get triggered at once, an axis
can't handle this anyway.  So this patch adds a module parameter named
"sticks_to_null" for unknown devices. A known dance pad makes use of
it by changing to a new mapping-option named DANCEPAD_MAP_CONFIG. Other
tested devices may follow by adding this mapping-option too.

Some buttons of xpad-devices are addressing mouse-buttons instead of
gamepad-buttons. This gets fixed too.

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 63 insertions, 44 deletions

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index c1087ce4cef9..c41d012c88dc 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -9,6 +9,7 @@
  *               2005 Dominic Cerquetti <binary1230@yahoo.com>
  *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
  *               2007 Jan Kratochvil <honza@jikos.cz>
+ *               2010 Christoph Fritz <chf.fritz@googlemail.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -88,6 +89,9 @@
    but we map them to axes when possible to simplify things */
 #define MAP_DPAD_TO_BUTTONS             (1 << 0)
 #define MAP_TRIGGERS_TO_BUTTONS         (1 << 1)
+#define MAP_STICKS_TO_NULL              (1 << 2)
+#define DANCEPAD_MAP_CONFIG     (MAP_DPAD_TO_BUTTONS |                  \
+                                MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
 
 #define XTYPE_XBOX        0
 #define XTYPE_XBOX360     1
@@ -102,6 +106,10 @@ static int triggers_to_buttons;
 module_param(triggers_to_buttons, bool, S_IRUGO);
 MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
 
+static int sticks_to_null;
+module_param(sticks_to_null, bool, S_IRUGO);
+MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
+
 static const struct xpad_device {
         u16 idVendor;
         u16 idProduct;
@@ -114,7 +122,7 @@ static const struct xpad_device {
         { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
         { 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
         { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
-        { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+        { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
         { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
         { 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
         { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
@@ -158,7 +166,7 @@ static const struct xpad_device {
 /* buttons shared with xbox and xbox360 */
 static const signed short xpad_common_btn[] = {
         BTN_A, BTN_B, BTN_X, BTN_Y,                     /* "analog" buttons */
-        BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,    /* start/back/sticks */
+        BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,  /* start/back/sticks */
         -1                                              /* terminating entry */
 };
 
@@ -168,10 +176,10 @@ static const signed short xpad_btn[] = {
         -1                      /* terminating entry */
 };
 
-/* used when dpad is mapped to nuttons */
+/* used when dpad is mapped to buttons */
 static const signed short xpad_btn_pad[] = {
-        BTN_LEFT, BTN_RIGHT,            /* d-pad left, right */
-        BTN_0, BTN_1,                   /* d-pad up, down (XXX names??) */
+        BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,         /* d-pad left, right */
+        BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,         /* d-pad up, down */
         -1                              /* terminating entry */
 };
 
@@ -279,17 +287,19 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
 {
         struct input_dev *dev = xpad->dev;
 
-        /* left stick */
-        input_report_abs(dev, ABS_X,
-                         (__s16) le16_to_cpup((__le16 *)(data + 12)));
-        input_report_abs(dev, ABS_Y,
-                         ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
-
-        /* right stick */
-        input_report_abs(dev, ABS_RX,
-                         (__s16) le16_to_cpup((__le16 *)(data + 16)));
-        input_report_abs(dev, ABS_RY,
-                         ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
+        if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+                /* left stick */
+                input_report_abs(dev, ABS_X,
+                                 (__s16) le16_to_cpup((__le16 *)(data + 12)));
+                input_report_abs(dev, ABS_Y,
+                                 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
+
+                /* right stick */
+                input_report_abs(dev, ABS_RX,
+                                 (__s16) le16_to_cpup((__le16 *)(data + 16)));
+                input_report_abs(dev, ABS_RY,
+                                 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
+        }
 
         /* triggers left/right */
         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
@@ -302,10 +312,11 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
 
         /* digital pad */
         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
-                input_report_key(dev, BTN_LEFT,  data[2] & 0x04);
-                input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
-                input_report_key(dev, BTN_0,     data[2] & 0x01); /* up */
-                input_report_key(dev, BTN_1,     data[2] & 0x02); /* down */
+                /* dpad as buttons (left, right, up, down) */
+                input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+                input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+                input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+                input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
         } else {
                 input_report_abs(dev, ABS_HAT0X,
                                  !!(data[2] & 0x08) - !!(data[2] & 0x04));
@@ -315,7 +326,7 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
 
         /* start/back buttons and stick press left/right */
         input_report_key(dev, BTN_START,  data[2] & 0x10);
-        input_report_key(dev, BTN_BACK,   data[2] & 0x20);
+        input_report_key(dev, BTN_SELECT, data[2] & 0x20);
         input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
         input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
 
@@ -349,11 +360,11 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
 
         /* digital pad */
         if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
-                /* dpad as buttons (right, left, down, up) */
-                input_report_key(dev, BTN_LEFT, data[2] & 0x04);
-                input_report_key(dev, BTN_RIGHT, data[2] & 0x08);
-                input_report_key(dev, BTN_0, data[2] & 0x01);   /* up */
-                input_report_key(dev, BTN_1, data[2] & 0x02);   /* down */
+                /* dpad as buttons (left, right, up, down) */
+                input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+                input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+                input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+                input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
         } else {
                 input_report_abs(dev, ABS_HAT0X,
                                  !!(data[2] & 0x08) - !!(data[2] & 0x04));
@@ -363,7 +374,7 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
 
         /* start/back buttons */
         input_report_key(dev, BTN_START,  data[2] & 0x10);
-        input_report_key(dev, BTN_BACK,   data[2] & 0x20);
+        input_report_key(dev, BTN_SELECT, data[2] & 0x20);
 
         /* stick press left/right */
         input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
@@ -378,17 +389,19 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_report_key(dev, BTN_TR,   data[3] & 0x02);
         input_report_key(dev, BTN_MODE, data[3] & 0x04);
 
-        /* left stick */
-        input_report_abs(dev, ABS_X,
-                         (__s16) le16_to_cpup((__le16 *)(data + 6)));
-        input_report_abs(dev, ABS_Y,
-                         ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
-
-        /* right stick */
-        input_report_abs(dev, ABS_RX,
-                         (__s16) le16_to_cpup((__le16 *)(data + 10)));
-        input_report_abs(dev, ABS_RY,
-                         ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+        if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+                /* left stick */
+                input_report_abs(dev, ABS_X,
+                                 (__s16) le16_to_cpup((__le16 *)(data + 6)));
+                input_report_abs(dev, ABS_Y,
+                                 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
+
+                /* right stick */
+                input_report_abs(dev, ABS_RX,
+                                 (__s16) le16_to_cpup((__le16 *)(data + 10)));
+                input_report_abs(dev, ABS_RY,
+                                 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+        }
 
         /* triggers left/right */
         if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
@@ -814,6 +827,8 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                         xpad->mapping |= MAP_DPAD_TO_BUTTONS;
                 if (triggers_to_buttons)
                         xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
+                if (sticks_to_null)
+                        xpad->mapping |= MAP_STICKS_TO_NULL;
         }
 
         xpad->dev = input_dev;
@@ -830,16 +845,20 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         input_dev->open = xpad_open;
         input_dev->close = xpad_close;
 
-        input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+        input_dev->evbit[0] = BIT_MASK(EV_KEY);
+
+        if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+                input_dev->evbit[0] |= BIT_MASK(EV_ABS);
+                /* set up axes */
+                for (i = 0; xpad_abs[i] >= 0; i++)
+                        xpad_set_up_abs(input_dev, xpad_abs[i]);
+        }
 
-        /* set up standard buttons and axes */
+        /* set up standard buttons */
         for (i = 0; xpad_common_btn[i] >= 0; i++)
                 __set_bit(xpad_common_btn[i], input_dev->keybit);
 
-        for (i = 0; xpad_abs[i] >= 0; i++)
-                xpad_set_up_abs(input_dev, xpad_abs[i]);
-
-        /* Now set up model-specific ones */
+        /* set up model-specific ones */
         if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
                 for (i = 0; xpad360_btn[i] >= 0; i++)
                         __set_bit(xpad360_btn[i], input_dev->keybit);