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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
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 80 additions and 9 deletions
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3
tmk_core/protocol/chibios/main.c
View File

@ -163,6 +163,7 @@ int main(void) {
keyboard_setup();
/* Init USB */
usb_event_queue_init();
init_usb_driver(&USB_DRIVER);
#ifdef MIDI_ENABLE
@ -221,6 +222,8 @@ int main(void) {
/* Main loop */
while (true) {
usb_event_queue_task();
#if !defined(NO_USB_STARTUP_CHECK)
if (USB_DRIVER.state == USB_SUSPENDED) {
print("[s]");

75
tmk_core/protocol/chibios/usb_main.c
View File

@ -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:

11
tmk_core/protocol/chibios/usb_main.h
View File

@ -37,6 +37,17 @@ void init_usb_driver(USBDriver *usbp);
/* Restart the USB driver and bus */
void restart_usb_driver(USBDriver *usbp);
/* ---------------
* USB Event queue
* ---------------
*/
/* Initialisation of the FIFO */
void usb_event_queue_init(void);
/* Task to dequeue and execute any handlers for the USB events on the main thread */
void usb_event_queue_task(void);
/* ---------------
* Keyboard header
* ---------------