arduino-esp32/cores/esp32/esp32-hal-bt.c
Christian Ferbar dbf0b18d49
Bluetooth-classic: release BLE memory when BT classic only is requested (#8051)
* esp32-hal-bt.c free Bluetooth LE memory if CONFIG_BTDM_CONTROLLER_MODE_BR_EDR_ONLY is set

BLE memory can be released if bluetooth-classic - only is requested

* tStart( add error output

* ble mem_release only for esp32

* disable BLE with BT_MODE define

* BluetoothSerial add begin()+disableBLE; add memrelease

* btStart with BT_MODE parameter

* beautification

* Update BluetoothSerial.cpp fix wrong merges

---------

Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>
2023-11-29 12:44:23 +02:00

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3.8 KiB
C

// 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 "esp32-hal-bt.h"
#if SOC_BT_SUPPORTED
#ifdef CONFIG_BT_ENABLED
#if CONFIG_IDF_TARGET_ESP32
bool btInUse(){ return true; }
#else
// user may want to change it to free resources
__attribute__((weak)) bool btInUse(){ return true; }
#endif
#include "esp_bt.h"
#ifdef CONFIG_BTDM_CONTROLLER_MODE_BTDM
#define BT_MODE ESP_BT_MODE_BTDM
#elif defined(CONFIG_BTDM_CONTROLLER_MODE_BR_EDR_ONLY)
#define BT_MODE ESP_BT_MODE_CLASSIC_BT
#else
#define BT_MODE ESP_BT_MODE_BLE
#endif
bool btStarted(){
return (esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED);
}
bool btStart() {
return btStartMode(BT_MODE);
}
bool btStartMode(bt_mode mode){
esp_bt_mode_t esp_bt_mode;
esp_bt_controller_config_t cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
#if CONFIG_IDF_TARGET_ESP32
switch(mode) {
case BT_MODE_BLE: esp_bt_mode=ESP_BT_MODE_BLE;
break;
case BT_MODE_CLASSIC_BT: esp_bt_mode=ESP_BT_MODE_CLASSIC_BT;
break;
case BT_MODE_BTDM: esp_bt_mode=ESP_BT_MODE_BTDM;
break;
default: esp_bt_mode=BT_MODE;
break;
}
// esp_bt_controller_enable(MODE) This mode must be equal as the mode in “cfg” of esp_bt_controller_init().
cfg.mode=esp_bt_mode;
if(cfg.mode == ESP_BT_MODE_CLASSIC_BT) {
esp_bt_controller_mem_release(ESP_BT_MODE_BLE);
}
#else
// other esp variants dont support BT-classic / DM.
esp_bt_mode=BT_MODE;
#endif
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED){
return true;
}
esp_err_t ret;
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_IDLE){
if((ret = esp_bt_controller_init(&cfg)) != ESP_OK) {
log_e("initialize controller failed: %s", esp_err_to_name(ret));
return false;
}
while(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_IDLE){}
}
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_INITED){
if((ret = esp_bt_controller_enable(esp_bt_mode)) != ESP_OK) {
log_e("BT Enable mode=%d failed %s", BT_MODE, esp_err_to_name(ret));
return false;
}
}
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED){
return true;
}
log_e("BT Start failed");
return false;
}
bool btStop(){
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_IDLE){
return true;
}
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED){
if (esp_bt_controller_disable()) {
log_e("BT Disable failed");
return false;
}
while(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_ENABLED);
}
if(esp_bt_controller_get_status() == ESP_BT_CONTROLLER_STATUS_INITED){
if (esp_bt_controller_deinit()) {
log_e("BT deint failed");
return false;
}
vTaskDelay(1);
if (esp_bt_controller_get_status() != ESP_BT_CONTROLLER_STATUS_IDLE) {
return false;
}
return true;
}
log_e("BT Stop failed");
return false;
}
#else // CONFIG_BT_ENABLED
bool btStarted()
{
return false;
}
bool btStart()
{
return false;
}
bool btStop()
{
return false;
}
#endif /* CONFIG_BT_ENABLED */
#endif /* SOC_BT_SUPPORTED */