55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_log.h"
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#include "esp_check.h"
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#include "tinyusb.h"
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#include "tusb_tasks.h"
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const static char *TAG = "tusb_tsk";
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static TaskHandle_t s_tusb_tskh;
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/**
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* @brief This top level thread processes all usb events and invokes callbacks
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*/
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static void tusb_device_task(void *arg)
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{
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ESP_LOGD(TAG, "tinyusb task started");
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while (1) { // RTOS forever loop
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tud_task();
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}
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}
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esp_err_t tusb_run_task(void)
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{
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// This function is not garanteed to be thread safe, if invoked multiple times without calling `tusb_stop_task`, will cause memory leak
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// doing a sanity check anyway
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ESP_RETURN_ON_FALSE(!s_tusb_tskh, ESP_ERR_INVALID_STATE, TAG, "TinyUSB main task already started");
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// Create a task for tinyusb device stack:
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xTaskCreate(tusb_device_task, "TinyUSB", CONFIG_TINYUSB_TASK_STACK_SIZE, NULL, CONFIG_TINYUSB_TASK_PRIORITY, &s_tusb_tskh);
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ESP_RETURN_ON_FALSE(s_tusb_tskh, ESP_FAIL, TAG, "create TinyUSB main task failed");
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return ESP_OK;
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}
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esp_err_t tusb_stop_task(void)
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{
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ESP_RETURN_ON_FALSE(s_tusb_tskh, ESP_ERR_INVALID_STATE, TAG, "TinyUSB main task not started yet");
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vTaskDelete(s_tusb_tskh);
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s_tusb_tskh = NULL;
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return ESP_OK;
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}
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