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https://github.com/qmk/qmk_firmware
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Revert changes to ChibiOS Suspend Code (#21830)
* Partially revert #19780 * Finish * Get teensy 3.5/3.6 board files too * fix lint issue * Revert "[Bug] Restore usb suspend wakeup delay (#21676)" This reverts commit e8e989fd7ad7c10e725e50ae8b0a4426e09f7f30. * Apply suggestions from code review Co-authored-by: Joel Challis <git@zvecr.com> --------- Co-authored-by: Joel Challis <git@zvecr.com>
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@ -80,3 +80,7 @@ void __early_init(void) {
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void boardInit(void) {
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}
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void restart_usb_driver(USBDriver *usbp) {
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// Do nothing. Restarting the USB driver on these boards breaks it.
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}
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@ -80,3 +80,7 @@ void __early_init(void) {
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void boardInit(void) {
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}
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void restart_usb_driver(USBDriver *usbp) {
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// Do nothing. Restarting the USB driver on these boards breaks it.
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}
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@ -144,3 +144,8 @@ void __early_init(void) {
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* @todo Add your board-specific code, if any.
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*/
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void boardInit(void) {}
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void restart_usb_driver(USBDriver *usbp) {
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// Do nothing. Restarting the USB driver on these boards breaks it.
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}
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11
platforms/chibios/boards/PJRC_TEENSY_3_5/board/board.mk
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platforms/chibios/boards/PJRC_TEENSY_3_5/board/board.mk
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@ -0,0 +1,11 @@
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include $(CHIBIOS_CONTRIB)/os/hal/boards/PJRC_TEENSY_3_5/board.mk
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# List of all the board related files.
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BOARDSRC += $(BOARD_PATH)/board/extra.c
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# Required include directories
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BOARDINC += $(BOARD_PATH)/board
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# Shared variables
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ALLCSRC += $(BOARDSRC)
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ALLINC += $(BOARDINC)
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7
platforms/chibios/boards/PJRC_TEENSY_3_5/board/extra.c
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7
platforms/chibios/boards/PJRC_TEENSY_3_5/board/extra.c
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@ -0,0 +1,7 @@
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#include <hal.h>
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void restart_usb_driver(USBDriver *usbp) {
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// Do nothing. Restarting the USB driver on the Teensy 3.6 breaks it,
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// resulting in a keyboard which can wake up a PC from Suspend-to-RAM, but
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// does not actually produce any keypresses until you un-plug and re-plug.
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}
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11
platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk
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11
platforms/chibios/boards/PJRC_TEENSY_3_6/board/board.mk
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@ -0,0 +1,11 @@
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include $(CHIBIOS_CONTRIB)/os/hal/boards/PJRC_TEENSY_3_6/board.mk
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# List of all the board related files.
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BOARDSRC += $(BOARD_PATH)/board/extra.c
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# Required include directories
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BOARDINC += $(BOARD_PATH)/board
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# Shared variables
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ALLCSRC += $(BOARDSRC)
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ALLINC += $(BOARDINC)
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7
platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c
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7
platforms/chibios/boards/PJRC_TEENSY_3_6/board/extra.c
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@ -0,0 +1,7 @@
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#include <hal.h>
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void restart_usb_driver(USBDriver *usbp) {
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// Do nothing. Restarting the USB driver on the Teensy 3.6 breaks it,
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// resulting in a keyboard which can wake up a PC from Suspend-to-RAM, but
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// does not actually produce any keypresses until you un-plug and re-plug.
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}
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@ -42,7 +42,6 @@ void suspend_wakeup_init(void) {
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clear_keys();
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#ifdef MOUSEKEY_ENABLE
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mousekey_clear();
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mousekey_send();
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#endif /* MOUSEKEY_ENABLE */
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#ifdef PROGRAMMABLE_BUTTON_ENABLE
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programmable_button_clear();
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@ -80,6 +80,26 @@ void console_task(void);
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void midi_ep_task(void);
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#endif
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/* TESTING
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* Amber LED blinker thread, times are in milliseconds.
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*/
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/* set this variable to non-zero anywhere to blink once */
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// static THD_WORKING_AREA(waThread1, 128);
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// static THD_FUNCTION(Thread1, arg) {
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// (void)arg;
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// chRegSetThreadName("blinker");
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// while (true) {
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// systime_t time;
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// time = USB_DRIVER.state == USB_ACTIVE ? 250 : 500;
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// palClearLine(LINE_CAPS_LOCK);
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// chSysPolledDelayX(MS2RTC(STM32_HCLK, time));
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// palSetLine(LINE_CAPS_LOCK);
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// chSysPolledDelayX(MS2RTC(STM32_HCLK, time));
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// }
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// }
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/* Early initialisation
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*/
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__attribute__((weak)) void early_hardware_init_pre(void) {
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@ -115,6 +135,9 @@ void boardInit(void) {
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void protocol_setup(void) {
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usb_device_state_init();
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// TESTING
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// chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
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}
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static host_driver_t *driver = NULL;
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@ -157,32 +180,28 @@ void protocol_post_init(void) {
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}
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void protocol_pre_task(void) {
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usb_event_queue_task();
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#if !defined(NO_USB_STARTUP_CHECK)
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if (USB_DRIVER.state == USB_SUSPENDED) {
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dprintln("suspending keyboard");
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while (USB_DRIVER.state == USB_SUSPENDED) {
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suspend_power_down();
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/* Do this in the suspended state */
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suspend_power_down(); // on AVR this deep sleeps for 15ms
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/* Remote wakeup */
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if ((USB_DRIVER.status & USB_GETSTATUS_REMOTE_WAKEUP_ENABLED) && suspend_wakeup_condition()) {
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/* issue a remote wakeup event to the host which should resume
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* the bus and get our keyboard out of suspension. */
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usbWakeupHost(&USB_DRIVER);
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# if USB_SUSPEND_WAKEUP_DELAY > 0
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/* Some hubs, kvm switches, and monitors do weird things, with
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* USB device state bouncing around wildly on wakeup, yielding
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* race conditions that can corrupt the keyboard state.
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*
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* Pause for a while to let things settle... */
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wait_ms(USB_SUSPEND_WAKEUP_DELAY);
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# endif
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restart_usb_driver(&USB_DRIVER);
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}
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}
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/* after a successful wakeup a USB_EVENT_WAKEUP is signaled to QMK by
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* ChibiOS, which triggers a wakeup callback that restores the state of
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* the keyboard. Therefore we do nothing here. */
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/* Woken up */
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// variables has been already cleared by the wakeup hook
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send_keyboard_report();
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# ifdef MOUSEKEY_ENABLE
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mousekey_send();
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# endif /* MOUSEKEY_ENABLE */
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}
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#endif
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usb_event_queue_task();
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}
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void protocol_post_task(void) {
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@ -784,19 +784,34 @@ void init_usb_driver(USBDriver *usbp) {
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#endif
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}
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restart_usb_driver(usbp);
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/*
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* Activates the USB driver and then the USB bus pull-up on D+.
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* Note, a delay is inserted in order to not have to disconnect the cable
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* after a reset.
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*/
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usbDisconnectBus(usbp);
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usbStop(usbp);
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wait_ms(50);
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usbStart(usbp, &usbcfg);
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usbConnectBus(usbp);
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chVTObjectInit(&keyboard_idle_timer);
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}
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/** @brief Restarts the USB driver and emulates a physical bus reconnection.
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* Note that the bus reconnection is MCU and even board specific, so it might
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* be a NOP on some hardware platforms.
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*/
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__attribute__((weak)) void restart_usb_driver(USBDriver *usbp) {
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usbDisconnectBus(usbp);
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usbStop(usbp);
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wait_ms(50);
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#if USB_SUSPEND_WAKEUP_DELAY > 0
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// Some hubs, kvm switches, and monitors do
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// weird things, with USB device state bouncing
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// around wildly on wakeup, yielding race
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// conditions that can corrupt the keyboard state.
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//
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// Pause for a while to let things settle...
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wait_ms(USB_SUSPEND_WAKEUP_DELAY);
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#endif
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usbStart(usbp, &usbcfg);
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usbConnectBus(usbp);
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}
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