esp-idf/components/openthread/port/esp_openthread_lock.c
Guo Jia Cheng 7c38989309 OpenThread: add OpenThread and porting
* Adds the OpenThread submodule.
* Adds porting on ESP32.
* Adds the OpenThread cli example.
2021-04-02 14:49:49 +08:00

53 lines
1.4 KiB
C

// Copyright 2021 Espressif Systems (Shanghai) CO LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License
#include "esp_openthread_lock.h"
#include "esp_err.h"
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
static SemaphoreHandle_t s_openthread_mutex = NULL;
bool esp_openthread_lock_acquire(TickType_t block_ticks)
{
BaseType_t ret = xSemaphoreTake(s_openthread_mutex, block_ticks);
return (ret == pdTRUE);
}
void esp_openthread_lock_release(void)
{
xSemaphoreGive(s_openthread_mutex);
}
esp_err_t esp_openthread_lock_init(void)
{
if (s_openthread_mutex != NULL) {
return ESP_ERR_INVALID_STATE;
}
s_openthread_mutex = xSemaphoreCreateMutex();
if (s_openthread_mutex == NULL) {
return ESP_ERR_NO_MEM;
}
return ESP_OK;
}
void esp_openthread_lock_deinit(void)
{
if (s_openthread_mutex) {
vSemaphoreDelete(s_openthread_mutex);
s_openthread_mutex = NULL;
}
}