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Decouple USB events from the USB interrupt handler. (#10437)

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This commit is contained in:
Nick Brassel
2021-02-01 08:19:00 +11:00
committed by GitHub
parent 0fa2e7c790
commit db11a2a1fd
3 changed files with 80 additions and 9 deletions
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75
tmk_core/protocol/chibios/usb_main.c
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@ -27,6 +27,7 @@
#include <ch.h>
#include <hal.h>
#include <string.h>
#include "usb_main.h"
@ -368,6 +369,69 @@ static usb_driver_configs_t drivers = {
* ---------------------------------------------------------
*/
#define USB_EVENT_QUEUE_SIZE 16
usbevent_t event_queue[USB_EVENT_QUEUE_SIZE];
uint8_t event_queue_head;
uint8_t event_queue_tail;
void usb_event_queue_init(void) {
// Initialise the event queue
memset(&event_queue, 0, sizeof(event_queue));
event_queue_head = 0;
event_queue_tail = 0;
}
static inline bool usb_event_queue_enqueue(usbevent_t event) {
uint8_t next = (event_queue_head + 1) % USB_EVENT_QUEUE_SIZE;
if (next == event_queue_tail) {
return false;
}
event_queue[event_queue_head] = event;
event_queue_head = next;
return true;
}
static inline bool usb_event_queue_dequeue(usbevent_t *event) {
if (event_queue_head == event_queue_tail) {
return false;
}
*event = event_queue[event_queue_tail];
event_queue_tail = (event_queue_tail + 1) % USB_EVENT_QUEUE_SIZE;
return true;
}
static inline void usb_event_suspend_handler(void) {
#ifdef SLEEP_LED_ENABLE
sleep_led_enable();
#endif /* SLEEP_LED_ENABLE */
}
static inline void usb_event_wakeup_handler(void) {
suspend_wakeup_init();
#ifdef SLEEP_LED_ENABLE
sleep_led_disable();
// NOTE: converters may not accept this
led_set(host_keyboard_leds());
#endif /* SLEEP_LED_ENABLE */
}
void usb_event_queue_task(void) {
usbevent_t event;
while (usb_event_queue_dequeue(&event)) {
switch (event) {
case USB_EVENT_SUSPEND:
usb_event_suspend_handler();
break;
case USB_EVENT_WAKEUP:
usb_event_wakeup_handler();
break;
default:
// Nothing to do, we don't handle it.
break;
}
}
}
/* Handles the USB driver global events
* TODO: maybe disable some things when connection is lost? */
static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
@ -402,9 +466,7 @@ static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
osalSysUnlockFromISR();
return;
case USB_EVENT_SUSPEND:
#ifdef SLEEP_LED_ENABLE
sleep_led_enable();
#endif /* SLEEP_LED_ENABLE */
usb_event_queue_enqueue(USB_EVENT_SUSPEND);
/* Falls into.*/
case USB_EVENT_UNCONFIGURED:
/* Falls into.*/
@ -425,12 +487,7 @@ static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
qmkusbWakeupHookI(&drivers.array[i].driver);
chSysUnlockFromISR();
}
suspend_wakeup_init();
#ifdef SLEEP_LED_ENABLE
sleep_led_disable();
// NOTE: converters may not accept this
led_set(host_keyboard_leds());
#endif /* SLEEP_LED_ENABLE */
usb_event_queue_enqueue(USB_EVENT_WAKEUP);
return;
case USB_EVENT_STALLED: