From 5ee8bda943de20017636845a5c8d7069a4a283b8 Mon Sep 17 00:00:00 2001 From: Pavel Rojtberg Date: Sat, 10 Oct 2015 09:33:52 -0700 Subject: [PATCH] Input: xpad - x360w: report dpad as buttons and axes as discussed here[0], x360w is the only pad that maps dpad_to_button. This is bad for downstream developers as they have to differ between x360 and x360w which is not intuitive. This patch implements the suggested solution of exposing the dpad both as axes and as buttons. This retains backward compatibility with software already dealing with the difference while makes new software work as expected across x360/ x360w pads. [0] http://www.spinics.net/lists/linux-input/msg34421.html Signed-off-by: Pavel Rojtberg Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/xpad.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index 67ab85a4fd0e..bd669c1ff380 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -435,7 +435,16 @@ static void xpad360_process_packet(struct usb_xpad *xpad, 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 { + } + + /* + * This should be a simple else block. However historically + * xbox360w has mapped DPAD to buttons while xbox360 did not. This + * made no sense, but now we can not just switch back and have to + * support both behaviors. + */ + if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) || + xpad->xtype == XTYPE_XBOX360W) { input_report_abs(dev, ABS_HAT0X, !!(data[2] & 0x08) - !!(data[2] & 0x04)); input_report_abs(dev, ABS_HAT0Y, @@ -1158,7 +1167,16 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id if (xpad->mapping & MAP_DPAD_TO_BUTTONS) { for (i = 0; xpad_btn_pad[i] >= 0; i++) __set_bit(xpad_btn_pad[i], input_dev->keybit); - } else { + } + + /* + * This should be a simple else block. However historically + * xbox360w has mapped DPAD to buttons while xbox360 did not. This + * made no sense, but now we can not just switch back and have to + * support both behaviors. + */ + if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) || + xpad->xtype == XTYPE_XBOX360W) { for (i = 0; xpad_abs_pad[i] >= 0; i++) xpad_set_up_abs(input_dev, xpad_abs_pad[i]); }