Commit f712a5a0 authored by Cameron Gutman's avatar Cameron Gutman Committed by Dmitry Torokhov

Input: xpad - power off wireless 360 controllers on suspend

When the USB wireless adapter is suspended, the controllers
lose their connection. This causes them to start flashing
their LED rings and searching for the wireless adapter
again, wasting the controller's battery power.

Instead, we will tell the controllers to power down when
we suspend. This mirrors the behavior of the controllers
when connected to the console itself and how the official
Xbox One wireless adapter behaves on Windows.
Signed-off-by: default avatarCameron Gutman <aicommander@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 40974618
...@@ -115,6 +115,10 @@ static bool sticks_to_null; ...@@ -115,6 +115,10 @@ static bool sticks_to_null;
module_param(sticks_to_null, bool, S_IRUGO); module_param(sticks_to_null, bool, S_IRUGO);
MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads"); MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
static bool auto_poweroff = true;
module_param(auto_poweroff, bool, S_IWUSR | S_IRUGO);
MODULE_PARM_DESC(auto_poweroff, "Power off wireless controllers on suspend");
static const struct xpad_device { static const struct xpad_device {
u16 idVendor; u16 idVendor;
u16 idProduct; u16 idProduct;
...@@ -1248,6 +1252,36 @@ static void xpad_stop_input(struct usb_xpad *xpad) ...@@ -1248,6 +1252,36 @@ static void xpad_stop_input(struct usb_xpad *xpad)
usb_kill_urb(xpad->irq_in); usb_kill_urb(xpad->irq_in);
} }
static void xpad360w_poweroff_controller(struct usb_xpad *xpad)
{
unsigned long flags;
struct xpad_output_packet *packet =
&xpad->out_packets[XPAD_OUT_CMD_IDX];
spin_lock_irqsave(&xpad->odata_lock, flags);
packet->data[0] = 0x00;
packet->data[1] = 0x00;
packet->data[2] = 0x08;
packet->data[3] = 0xC0;
packet->data[4] = 0x00;
packet->data[5] = 0x00;
packet->data[6] = 0x00;
packet->data[7] = 0x00;
packet->data[8] = 0x00;
packet->data[9] = 0x00;
packet->data[10] = 0x00;
packet->data[11] = 0x00;
packet->len = 12;
packet->pending = true;
/* Reset the sequence so we send out poweroff now */
xpad->last_out_packet = -1;
xpad_try_sending_next_out_packet(xpad);
spin_unlock_irqrestore(&xpad->odata_lock, flags);
}
static int xpad360w_start_input(struct usb_xpad *xpad) static int xpad360w_start_input(struct usb_xpad *xpad)
{ {
int error; int error;
...@@ -1590,6 +1624,15 @@ static int xpad_suspend(struct usb_interface *intf, pm_message_t message) ...@@ -1590,6 +1624,15 @@ static int xpad_suspend(struct usb_interface *intf, pm_message_t message)
* or goes away. * or goes away.
*/ */
xpad360w_stop_input(xpad); xpad360w_stop_input(xpad);
/*
* The wireless adapter is going off now, so the
* gamepads are going to become disconnected.
* Unless explicitly disabled, power them down
* so they don't just sit there flashing.
*/
if (auto_poweroff && xpad->pad_present)
xpad360w_poweroff_controller(xpad);
} else { } else {
mutex_lock(&input->mutex); mutex_lock(&input->mutex);
if (input->users) if (input->users)
......
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