78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
|
/*
|
||
|
|
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "sdkconfig.h"
|
||
|
|
#include "freertos/FreeRTOS.h"
|
||
|
|
#include "freertos/task.h"
|
||
|
|
#include "freertos/event_groups.h"
|
||
|
|
#include "esp_log.h"
|
||
|
|
#include "esp_check.h"
|
||
|
|
#include "tinyusb.h"
|
||
|
|
#include "tusb_tasks.h"
|
||
|
|
|
||
|
|
const static char *TAG = "tusb_tsk";
|
||
|
|
static TaskHandle_t s_tusb_tskh;
|
||
|
|
|
||
|
|
#if CONFIG_TINYUSB_INIT_IN_DEFAULT_TASK
|
||
|
|
const static int INIT_OK = BIT0;
|
||
|
|
const static int INIT_FAILED = BIT1;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief This top level thread processes all usb events and invokes callbacks
|
||
|
|
*/
|
||
|
|
static void tusb_device_task(void *arg)
|
||
|
|
{
|
||
|
|
ESP_LOGD(TAG, "tinyusb task started");
|
||
|
|
#if CONFIG_TINYUSB_INIT_IN_DEFAULT_TASK
|
||
|
|
EventGroupHandle_t *init_flags = arg;
|
||
|
|
if (!tusb_init()) {
|
||
|
|
ESP_LOGI(TAG, "Init TinyUSB stack failed");
|
||
|
|
xEventGroupSetBits(*init_flags, INIT_FAILED);
|
||
|
|
vTaskDelete(NULL);
|
||
|
|
}
|
||
|
|
ESP_LOGD(TAG, "tinyusb task has been initialized");
|
||
|
|
xEventGroupSetBits(*init_flags, INIT_OK);
|
||
|
|
#endif // CONFIG_TINYUSB_INIT_IN_DEFAULT_TASK
|
||
|
|
while (1) { // RTOS forever loop
|
||
|
|
tud_task();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
esp_err_t tusb_run_task(void)
|
||
|
|
{
|
||
|
|
// This function is not garanteed to be thread safe, if invoked multiple times without calling `tusb_stop_task`, will cause memory leak
|
||
|
|
// doing a sanity check anyway
|
||
|
|
ESP_RETURN_ON_FALSE(!s_tusb_tskh, ESP_ERR_INVALID_STATE, TAG, "TinyUSB main task already started");
|
||
|
|
|
||
|
|
void *task_arg = NULL;
|
||
|
|
#if CONFIG_TINYUSB_INIT_IN_DEFAULT_TASK
|
||
|
|
// need to synchronize to potentially report issue if init failed
|
||
|
|
EventGroupHandle_t init_flags = xEventGroupCreate();
|
||
|
|
ESP_RETURN_ON_FALSE(init_flags, ESP_ERR_NO_MEM, TAG, "Failed to allocate task sync flags");
|
||
|
|
task_arg = &init_flags;
|
||
|
|
#endif
|
||
|
|
// Create a task for tinyusb device stack:
|
||
|
|
xTaskCreatePinnedToCore(tusb_device_task, "TinyUSB", CONFIG_TINYUSB_TASK_STACK_SIZE, task_arg, CONFIG_TINYUSB_TASK_PRIORITY, &s_tusb_tskh, CONFIG_TINYUSB_TASK_AFFINITY);
|
||
|
|
ESP_RETURN_ON_FALSE(s_tusb_tskh, ESP_FAIL, TAG, "create TinyUSB main task failed");
|
||
|
|
#if CONFIG_TINYUSB_INIT_IN_DEFAULT_TASK
|
||
|
|
// wait until tusb initialization has completed
|
||
|
|
EventBits_t bits = xEventGroupWaitBits(init_flags, INIT_OK | INIT_FAILED, pdFALSE, pdFALSE, portMAX_DELAY);
|
||
|
|
vEventGroupDelete(init_flags);
|
||
|
|
ESP_RETURN_ON_FALSE(bits & INIT_OK, ESP_FAIL, TAG, "Init TinyUSB stack failed");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
esp_err_t tusb_stop_task(void)
|
||
|
|
{
|
||
|
|
ESP_RETURN_ON_FALSE(s_tusb_tskh, ESP_ERR_INVALID_STATE, TAG, "TinyUSB main task not started yet");
|
||
|
|
vTaskDelete(s_tusb_tskh);
|
||
|
|
s_tusb_tskh = NULL;
|
||
|
|
return ESP_OK;
|
||
|
|
}
|