Input: xpad - add support for wireless xbox360 controllers

Signed-off-by: Brian Magnuson <bdmagnuson@gmail.com>
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 148 insertions, 16 deletions

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 7188eec53cc6..ebf8303d6f56 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -92,7 +92,8 @@
 
 #define XTYPE_XBOX        0
 #define XTYPE_XBOX360     1
-#define XTYPE_UNKNOWN     2
+#define XTYPE_XBOX360W    2
+#define XTYPE_UNKNOWN     3
 
 static int dpad_to_buttons;
 module_param(dpad_to_buttons, bool, S_IRUGO);
@@ -109,6 +110,7 @@ static const struct xpad_device {
         { 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 },
+        { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
         { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
         { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
@@ -186,22 +188,25 @@ static const signed short xpad_abs_pad[] = {
 
 /* Xbox 360 has a vendor-specific class, so we cannot match it with only
  * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
- * match against vendor id as well. Also, some Xbox 360 devices have multiple
- * interface protocols, we only need protocol 1. */
-#define XPAD_XBOX360_VENDOR(vend) \
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
         .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
         .idVendor = (vend), \
         .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
         .bInterfaceSubClass = 93, \
-        .bInterfaceProtocol = 1
+        .bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
 
 static struct usb_device_id xpad_table [] = {
         { USB_INTERFACE_INFO('X', 'B', 0) },    /* X-Box USB-IF not approved class */
-        { XPAD_XBOX360_VENDOR(0x045e) },        /* Microsoft X-Box 360 controllers */
-        { XPAD_XBOX360_VENDOR(0x046d) },        /* Logitech X-Box 360 style controllers */
-        { XPAD_XBOX360_VENDOR(0x0738) },        /* Mad Catz X-Box 360 controllers */
-        { XPAD_XBOX360_VENDOR(0x0e6f) },        /* 0x0e6f X-Box 360 controllers */
-        { XPAD_XBOX360_VENDOR(0x1430) },        /* RedOctane X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x045e),            /* Microsoft X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x046d),            /* Logitech X-Box 360 style controllers */
+        XPAD_XBOX360_VENDOR(0x0738),            /* Mad Catz X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x0e6f),            /* 0x0e6f X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x1430),            /* RedOctane X-Box 360 controllers */
         { }
 };
 
@@ -211,10 +216,15 @@ struct usb_xpad {
         struct input_dev *dev;          /* input device interface */
         struct usb_device *udev;        /* usb device */
 
+        int pad_present;
+
         struct urb *irq_in;             /* urb for interrupt in report */
         unsigned char *idata;           /* input data */
         dma_addr_t idata_dma;
 
+        struct urb *bulk_out;
+        unsigned char *bdata;
+
 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
         struct urb *irq_out;            /* urb for interrupt out report */
         unsigned char *odata;           /* output data */
@@ -359,6 +369,39 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_sync(dev);
 }
 
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ *                       Bits 01.7 and 01.6 are valid
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+        /* Presence change */
+        if (data[0] & 0x08) {
+                if (data[1] & 0x80) {
+                        xpad->pad_present = 1;
+                        usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+                } else
+                        xpad->pad_present = 0;
+        }
+
+        /* Valid pad data */
+        if (!(data[1] & 0x1))
+                return;
+
+        xpad360_process_packet(xpad, cmd, &data[4]);
+}
+
 static void xpad_irq_in(struct urb *urb)
 {
         struct usb_xpad *xpad = urb->context;
@@ -381,10 +424,16 @@ static void xpad_irq_in(struct urb *urb)
                 goto exit;
         }
 
-        if (xpad->xtype == XTYPE_XBOX360)
+        switch (xpad->xtype) {
+        case XTYPE_XBOX360:
                 xpad360_process_packet(xpad, 0, xpad->idata);
-        else
+                break;
+        case XTYPE_XBOX360W:
+                xpad360w_process_packet(xpad, 0, xpad->idata);
+                break;
+        default:
                 xpad_process_packet(xpad, 0, xpad->idata);
+        }
 
 exit:
         retval = usb_submit_urb (urb, GFP_ATOMIC);
@@ -422,6 +471,23 @@ exit:
                     __FUNCTION__, retval);
 }
 
+static void xpad_bulk_out(struct urb *urb)
+{
+        switch (urb->status) {
+        case 0:
+                /* success */
+                break;
+        case -ECONNRESET:
+        case -ENOENT:
+        case -ESHUTDOWN:
+                /* this urb is terminated, clean up */
+                dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+                break;
+        default:
+                dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+        }
+}
+
 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
 {
         struct usb_endpoint_descriptor *ep_irq_out;
@@ -600,6 +666,10 @@ static int xpad_open(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
+        /* URB was submitted in probe */
+        if(xpad->xtype == XTYPE_XBOX360W)
+                return 0;
+
         xpad->irq_in->dev = xpad->udev;
         if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
                 return -EIO;
@@ -611,7 +681,8 @@ static void xpad_close(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
-        usb_kill_urb(xpad->irq_in);
+        if(xpad->xtype != XTYPE_XBOX360W)
+                usb_kill_urb(xpad->irq_in);
         xpad_stop_output(xpad);
 }
 
@@ -671,8 +742,15 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         xpad->xtype = xpad_device[i].xtype;
         if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
                 xpad->dpad_mapping = !dpad_to_buttons;
-        if (xpad->xtype == XTYPE_UNKNOWN)
-                xpad->xtype = (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC);
+        if (xpad->xtype == XTYPE_UNKNOWN) {
+                if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+                        if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+                                xpad->xtype = XTYPE_XBOX360W;
+                        else
+                                xpad->xtype = XTYPE_XBOX360;
+                } else
+                        xpad->xtype = XTYPE_XBOX;
+        }
         xpad->dev = input_dev;
         usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
         strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
@@ -692,7 +770,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         /* set up buttons */
         for (i = 0; xpad_common_btn[i] >= 0; i++)
                 set_bit(xpad_common_btn[i], input_dev->keybit);
-        if (xpad->xtype == XTYPE_XBOX360)
+        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);
         else
@@ -734,8 +812,57 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                 goto fail4;
 
         usb_set_intfdata(intf, xpad);
+
+        /*
+         * Submit the int URB immediatly rather than waiting for open
+         * because we get status messages from the device whether
+         * or not any controllers are attached.  In fact, it's
+         * exactly the message that a controller has arrived that
+         * we're waiting for.
+         */
+        if (xpad->xtype == XTYPE_XBOX360W) {
+                xpad->irq_in->dev = xpad->udev;
+                error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+                if (error)
+                        goto fail4;
+
+                /*
+                 * Setup the message to set the LEDs on the
+                 * controller when it shows up
+                 */
+                xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
+                if(!xpad->bulk_out)
+                        goto fail5;
+
+                xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
+                if(!xpad->bdata)
+                        goto fail6;
+
+                xpad->bdata[2] = 0x08;
+                switch (intf->cur_altsetting->desc.bInterfaceNumber) {
+                case 0:
+                        xpad->bdata[3] = 0x42;
+                        break;
+                case 2:
+                        xpad->bdata[3] = 0x43;
+                        break;
+                case 4:
+                        xpad->bdata[3] = 0x44;
+                        break;
+                case 6:
+                        xpad->bdata[3] = 0x45;
+                }
+
+                ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
+                usb_fill_bulk_urb(xpad->bulk_out, udev,
+                                usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
+                                xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
+        }
+
         return 0;
 
+ fail6: usb_free_urb(xpad->bulk_out);
+ fail5: usb_kill_urb(xpad->irq_in);
  fail4: usb_free_urb(xpad->irq_in);
  fail3: xpad_deinit_output(xpad);
  fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
@@ -754,6 +881,11 @@ static void xpad_disconnect(struct usb_interface *intf)
                 xpad_led_disconnect(xpad);
                 input_unregister_device(xpad->dev);
                 xpad_deinit_output(xpad);
+                if (xpad->xtype == XTYPE_XBOX360W) {
+                        usb_kill_urb(xpad->bulk_out);
+                        usb_free_urb(xpad->bulk_out);
+                        usb_kill_urb(xpad->irq_in);
+                }
                 usb_free_urb(xpad->irq_in);
                 usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
                                 xpad->idata, xpad->idata_dma);