[PATCH 14/15] Input: xpad: workaround dead irq_out after suspend/ resume
From: Pavel Rojtberg <hidden>
Date: 2015-10-01 20:57:52
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
From: Pavel Rojtberg <redacted> the irq_out urb is dead after suspend/ resume on my x360 wr pad. (also reproduced by Zachary Lund [0]) Work around this by resetting the usb device on resume. Added suspend/ resume callbacks to do so. [0]: https://github.com/paroj/xpad/issues/6 Signed-off-by: Pavel Rojtberg <redacted> --- drivers/input/joystick/xpad.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-)
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index cd0718a..9490d96 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c@@ -1419,33 +1419,53 @@ static void xpad_deinit_input(struct usb_xpad *xpad) ida_remove(&xpad_pad_seq, xpad->pad_nr); } +static void xpad_stop_communication(struct usb_xpad *xpad) { + xpad_stop_output(xpad); + + if (xpad->xtype == XTYPE_XBOX360W) { + usb_kill_urb(xpad->irq_in); + } + + cancel_work_sync(&xpad->work); +} + static void xpad_disconnect(struct usb_interface *intf) { struct usb_xpad *xpad = usb_get_intfdata (intf); if (xpad->pad_present) xpad_deinit_input(xpad); - xpad_deinit_output(xpad); - if (xpad->xtype == XTYPE_XBOX360W) { - usb_kill_urb(xpad->irq_in); - } + xpad_stop_communication(xpad); + + xpad_deinit_output(xpad); usb_free_urb(xpad->irq_in); usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); - cancel_work_sync(&xpad->work); - kfree(xpad); usb_set_intfdata(intf, NULL); } +static int xpad_suspend(struct usb_interface *intf, pm_message_t message) { + struct usb_xpad *xpad = usb_get_intfdata (intf); + xpad_stop_communication(xpad); + return 0; +} + +static int xpad_resume(struct usb_interface *intf) { + usb_queue_reset_device(intf); + return 0; +} + static struct usb_driver xpad_driver = { .name = "xpad", .probe = xpad_probe, .disconnect = xpad_disconnect, + .suspend = xpad_suspend, + .resume = xpad_resume, .id_table = xpad_table, };
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1.9.1