Input: xpad - fix support for some third-party controllers

Some third-party controllers, such as the HORPIAD FPS for Nintendo Switch
and Gamesir-G3w, require a specific packet that the first-party XInput
driver sends before it will start sending reports. It's not currently known
what this packet does, but since the first-party driver always sends it's
unlikely that this could cause issues with existing controllers.

Co-authored-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Vicki Pfau <vi@endrift.com>
Link: https://lore.kernel.org/r/20230607012812.379640-2-vi@endrift.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 5d6a25b42bf90ae37b51645a3e64cf17f0ca7cb4..745047215e425a5454b07c74756c9478a69fc3d7 100644 (file)
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -264,6 +264,7 @@ static const struct xpad_device {
        { 0x0f0d, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
        { 0x0f0d, 0x0078, "Hori Real Arcade Pro V Kai Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
        { 0x0f0d, 0x00c5, "Hori Fighting Commander ONE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+       { 0x0f0d, 0x00dc, "HORIPAD FPS for Nintendo Switch", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
        { 0x0f30, 0x010b, "Philips Recoil", 0, XTYPE_XBOX },
        { 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
        { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
@@ -1720,6 +1721,27 @@ static int xpad_start_input(struct usb_xpad *xpad)
                        return error;
                }
        }
+       if (xpad->xtype == XTYPE_XBOX360) {
+               /*
+                * Some third-party controllers Xbox 360-style controllers
+                * require this message to finish initialization.
+                */
+               u8 dummy[20];
+
+               error = usb_control_msg_recv(xpad->udev, 0,
+                                            /* bRequest */ 0x01,
+                                            /* bmRequestType */
+                                            USB_TYPE_VENDOR | USB_DIR_IN |
+                                               USB_RECIP_INTERFACE,
+                                            /* wValue */ 0x100,
+                                            /* wIndex */ 0x00,
+                                            dummy, sizeof(dummy),
+                                            25, GFP_KERNEL);
+               if (error)
+                       dev_warn(&xpad->dev->dev,
+                                "unable to receive magic message: %d\n",
+                                error);
+       }
 
        return 0;
 }