esp-idf/components/bt/host/bluedroid/api/esp_bt_main.c

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE 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_bt_main.h"
#include "btc/btc_task.h"
#include "btc/btc_main.h"
#include "esp_bt.h"
#include "osi/future.h"
#include "osi/allocator.h"
static bool bd_already_enable = false;
static bool bd_already_init = false;
esp_bluedroid_status_t esp_bluedroid_get_status(void)
{
if (bd_already_init) {
if (bd_already_enable) {
return ESP_BLUEDROID_STATUS_ENABLED;
} else {
return ESP_BLUEDROID_STATUS_INITIALIZED;
}
} else {
return ESP_BLUEDROID_STATUS_UNINITIALIZED;
}
}
esp_err_t esp_bluedroid_enable(void)
{
btc_msg_t msg;
future_t **future_p;
if (!bd_already_init) {
LOG_ERROR("Bludroid not initialised\n");
return ESP_ERR_INVALID_STATE;
}
if (bd_already_enable) {
LOG_ERROR("Bluedroid already enabled\n");
return ESP_ERR_INVALID_STATE;
}
future_p = btc_main_get_future_p(BTC_MAIN_ENABLE_FUTURE);
*future_p = future_new();
if (*future_p == NULL) {
LOG_ERROR("Bluedroid enable failed\n");
return ESP_ERR_NO_MEM;
}
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_MAIN_INIT;
msg.act = BTC_MAIN_ACT_ENABLE;
if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
LOG_ERROR("Bluedroid enable failed\n");
return ESP_FAIL;
}
if (future_await(*future_p) == FUTURE_FAIL) {
LOG_ERROR("Bluedroid enable failed\n");
return ESP_FAIL;
}
bd_already_enable = true;
return ESP_OK;
}
esp_err_t esp_bluedroid_disable(void)
{
btc_msg_t msg;
future_t **future_p;
if (!bd_already_enable) {
LOG_ERROR("Bluedroid already disabled\n");
return ESP_ERR_INVALID_STATE;
}
future_p = btc_main_get_future_p(BTC_MAIN_DISABLE_FUTURE);
*future_p = future_new();
if (*future_p == NULL) {
LOG_ERROR("Bluedroid disable failed\n");
return ESP_ERR_NO_MEM;
}
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_MAIN_INIT;
msg.act = BTC_MAIN_ACT_DISABLE;
if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
LOG_ERROR("Bluedroid disable failed\n");
return ESP_FAIL;
}
if (future_await(*future_p) == FUTURE_FAIL) {
LOG_ERROR("Bluedroid disable failed\n");
return ESP_FAIL;
}
bd_already_enable = false;
return ESP_OK;
}
esp_err_t esp_bluedroid_init(void)
{
btc_msg_t msg;
future_t **future_p;
bt_status_t ret;
if (esp_bt_controller_get_status() != ESP_BT_CONTROLLER_STATUS_ENABLED) {
LOG_ERROR("Controller not initialised\n");
return ESP_ERR_INVALID_STATE;
}
if (bd_already_init) {
LOG_ERROR("Bluedroid already initialised\n");
return ESP_ERR_INVALID_STATE;
}
#if HEAP_MEMORY_DEBUG
osi_mem_dbg_init();
#endif
/*
* BTC Init
*/
ret = btc_init();
if (ret != BT_STATUS_SUCCESS) {
LOG_ERROR("Bluedroid Initialize Fail");
return ESP_FAIL;
}
future_p = btc_main_get_future_p(BTC_MAIN_INIT_FUTURE);
*future_p = future_new();
if (*future_p == NULL) {
LOG_ERROR("Bluedroid Initialize Fail!");
return ESP_ERR_NO_MEM;
}
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_MAIN_INIT;
msg.act = BTC_MAIN_ACT_INIT;
if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
LOG_ERROR("Bluedroid Initialize Fail");
return ESP_FAIL;
}
if (future_await(*future_p) == FUTURE_FAIL) {
LOG_ERROR("Bluedroid Initialize Fail");
return ESP_FAIL;
}
bd_already_init = true;
return ESP_OK;
}
esp_err_t esp_bluedroid_deinit(void)
{
btc_msg_t msg;
future_t **future_p;
if (!bd_already_init) {
LOG_ERROR("Bluedroid already de-initialised\n");
return ESP_ERR_INVALID_STATE;
}
if (bd_already_enable) {
LOG_ERROR("Bludroid already enabled, do disable first\n");
return ESP_ERR_INVALID_STATE;
}
future_p = btc_main_get_future_p(BTC_MAIN_DEINIT_FUTURE);
*future_p = future_new();
if (*future_p == NULL) {
LOG_ERROR("Bluedroid de-initialise failed\n");
return ESP_ERR_NO_MEM;
}
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_MAIN_INIT;
msg.act = BTC_MAIN_ACT_DEINIT;
if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
LOG_ERROR("Bluedroid de-initialise failed\n");
return ESP_FAIL;
}
if (future_await(*future_p) == FUTURE_FAIL) {
LOG_ERROR("Bluedroid de-initialise failed\n");
return ESP_FAIL;
}
btc_deinit();
bd_already_init = false;
return ESP_OK;
}