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[Bug] Restore usb suspend wakeup delay (#21676)

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* Respect USB_SUSPEND_WAKEUP_DELAY on wakeup

This delay wasn't honored after removing `restart_usb_driver` from the
suspend and wakeup handling. It is now re-introduced in the appropriate
spot, namely after issuing a remote wakeup to a sleeping host.

* Remove old, unused and commented testing code
This commit is contained in:
Stefan Kerkmann 2023-08-03 00:42:57 +02:00 committed by GitHub
parent d232f60c01
commit e8e989fd7a
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 14 additions and 44 deletions
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31
tmk_core/protocol/chibios/chibios.c
View file

@ -80,26 +80,6 @@ void console_task(void);
void midi_ep_task(void);
#endif
/* TESTING
* Amber LED blinker thread, times are in milliseconds.
*/
/* set this variable to non-zero anywhere to blink once */
// static THD_WORKING_AREA(waThread1, 128);
// static THD_FUNCTION(Thread1, arg) {
// (void)arg;
// chRegSetThreadName("blinker");
// while (true) {
// systime_t time;
// time = USB_DRIVER.state == USB_ACTIVE ? 250 : 500;
// palClearLine(LINE_CAPS_LOCK);
// chSysPolledDelayX(MS2RTC(STM32_HCLK, time));
// palSetLine(LINE_CAPS_LOCK);
// chSysPolledDelayX(MS2RTC(STM32_HCLK, time));
// }
// }
/* Early initialisation
*/
__attribute__((weak)) void early_hardware_init_pre(void) {
@ -135,9 +115,6 @@ void boardInit(void) {
void protocol_setup(void) {
usb_device_state_init();
// TESTING
// chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
}
static host_driver_t *driver = NULL;
@ -189,6 +166,14 @@ void protocol_pre_task(void) {
/* issue a remote wakeup event to the host which should resume
* the bus and get our keyboard out of suspension. */
usbWakeupHost(&USB_DRIVER);
# if USB_SUSPEND_WAKEUP_DELAY > 0
/* Some hubs, kvm switches, and monitors do weird things, with
* USB device state bouncing around wildly on wakeup, yielding
* race conditions that can corrupt the keyboard state.
*
* Pause for a while to let things settle... */
wait_ms(USB_SUSPEND_WAKEUP_DELAY);
# endif
}
}
/* after a successful wakeup a USB_EVENT_WAKEUP is signaled to QMK by

27
tmk_core/protocol/chibios/usb_main.c
View file

@ -784,34 +784,19 @@ void init_usb_driver(USBDriver *usbp) {
#endif
}
/*
* Activates the USB driver and then the USB bus pull-up on D+.
* Note, a delay is inserted in order to not have to disconnect the cable
* after a reset.
*/
usbDisconnectBus(usbp);
usbStop(usbp);
wait_ms(50);
usbStart(usbp, &usbcfg);
usbConnectBus(usbp);
restart_usb_driver(usbp);
chVTObjectInit(&keyboard_idle_timer);
}
/** @brief Restarts the USB driver and emulates a physical bus reconnection.
* Note that the bus reconnection is MCU and even board specific, so it might
* be a NOP on some hardware platforms.
*/
__attribute__((weak)) void restart_usb_driver(USBDriver *usbp) {
usbDisconnectBus(usbp);
usbStop(usbp);
#if USB_SUSPEND_WAKEUP_DELAY > 0
// Some hubs, kvm switches, and monitors do
// weird things, with USB device state bouncing
// around wildly on wakeup, yielding race
// conditions that can corrupt the keyboard state.
//
// Pause for a while to let things settle...
wait_ms(USB_SUSPEND_WAKEUP_DELAY);
#endif
wait_ms(50);
usbStart(usbp, &usbcfg);
usbConnectBus(usbp);
}