1 /* 2 * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef __ESP_BT_H__ 8 #define __ESP_BT_H__ 9 10 #include <stdint.h> 11 #include <stdbool.h> 12 #include "esp_err.h" 13 #include "sdkconfig.h" 14 #include "esp_task.h" 15 16 #include "nimble/nimble_npl.h" 17 #include "../../../../controller/esp32c6/esp_bt_cfg.h" 18 #include "hal/efuse_hal.h" 19 #include "esp_private/esp_modem_clock.h" 20 21 #ifdef CONFIG_BT_LE_HCI_INTERFACE_USE_UART 22 #include "driver/uart.h" 23 #endif 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 /** 30 * @brief Bluetooth mode for controller enable/disable. 31 */ 32 typedef enum { 33 ESP_BT_MODE_IDLE = 0x00, /*!< Bluetooth is not running */ 34 ESP_BT_MODE_BLE = 0x01, /*!< Run BLE mode */ 35 ESP_BT_MODE_CLASSIC_BT = 0x02, /*!< Run Classic BT mode */ 36 ESP_BT_MODE_BTDM = 0x03, /*!< Run dual mode */ 37 } esp_bt_mode_t; 38 39 /** 40 * @brief Bluetooth controller enable/disable/initialised/de-initialised status. 41 */ 42 typedef enum { 43 ESP_BT_CONTROLLER_STATUS_IDLE = 0, /*!< Controller is in idle state */ 44 ESP_BT_CONTROLLER_STATUS_INITED, /*!< Controller is in initialising state */ 45 ESP_BT_CONTROLLER_STATUS_ENABLED, /*!< Controller is in enabled state */ 46 ESP_BT_CONTROLLER_STATUS_NUM, /*!< Controller is in disabled state */ 47 } esp_bt_controller_status_t; 48 49 /** 50 * @brief BLE tx power type 51 * ESP_BLE_PWR_TYPE_CONN_HDL0-8: for each connection, and only be set after connection completed. 52 * when disconnect, the correspond TX power is not effected. 53 * ESP_BLE_PWR_TYPE_ADV : for advertising/scan response. 54 * ESP_BLE_PWR_TYPE_SCAN : for scan. 55 * ESP_BLE_PWR_TYPE_DEFAULT : if each connection's TX power is not set, it will use this default value. 56 * if neither in scan mode nor in adv mode, it will use this default value. 57 * If none of power type is set, system will use ESP_PWR_LVL_P3 as default for ADV/SCAN/CONN0-9. 58 */ 59 typedef enum { 60 ESP_BLE_PWR_TYPE_CONN_HDL0 = 0, /*!< For connection handle 0 */ 61 ESP_BLE_PWR_TYPE_CONN_HDL1 = 1, /*!< For connection handle 1 */ 62 ESP_BLE_PWR_TYPE_CONN_HDL2 = 2, /*!< For connection handle 2 */ 63 ESP_BLE_PWR_TYPE_CONN_HDL3 = 3, /*!< For connection handle 3 */ 64 ESP_BLE_PWR_TYPE_CONN_HDL4 = 4, /*!< For connection handle 4 */ 65 ESP_BLE_PWR_TYPE_CONN_HDL5 = 5, /*!< For connection handle 5 */ 66 ESP_BLE_PWR_TYPE_CONN_HDL6 = 6, /*!< For connection handle 6 */ 67 ESP_BLE_PWR_TYPE_CONN_HDL7 = 7, /*!< For connection handle 7 */ 68 ESP_BLE_PWR_TYPE_CONN_HDL8 = 8, /*!< For connection handle 8 */ 69 ESP_BLE_PWR_TYPE_ADV = 9, /*!< For advertising */ 70 ESP_BLE_PWR_TYPE_SCAN = 10, /*!< For scan */ 71 ESP_BLE_PWR_TYPE_DEFAULT = 11, /*!< For default, if not set other, it will use default value */ 72 ESP_BLE_PWR_TYPE_NUM = 12, /*!< TYPE numbers */ 73 } esp_ble_power_type_t; 74 75 /** 76 * @brief Bluetooth TX power level(index), it's just a index corresponding to power(dbm). 77 */ 78 typedef enum { 79 ESP_PWR_LVL_N15 = 3, /*!< Corresponding to -15dbm */ 80 ESP_PWR_LVL_N12 = 4, /*!< Corresponding to -12dbm */ 81 ESP_PWR_LVL_N9 = 5, /*!< Corresponding to -9dbm */ 82 ESP_PWR_LVL_N6 = 6, /*!< Corresponding to -6dbm */ 83 ESP_PWR_LVL_N3 = 7, /*!< Corresponding to -3dbm */ 84 ESP_PWR_LVL_N0 = 8, /*!< Corresponding to 0dbm */ 85 ESP_PWR_LVL_P3 = 9, /*!< Corresponding to +3dbm */ 86 ESP_PWR_LVL_P6 = 10, /*!< Corresponding to +6dbm */ 87 ESP_PWR_LVL_P9 = 11, /*!< Corresponding to +9dbm */ 88 ESP_PWR_LVL_P12 = 12, /*!< Corresponding to +12dbm */ 89 ESP_PWR_LVL_P15 = 13, /*!< Corresponding to +15dbm */ 90 ESP_PWR_LVL_P18 = 14, /*!< Corresponding to +18dbm */ 91 ESP_PWR_LVL_P20 = 15, /*!< Corresponding to +20dbm */ 92 ESP_PWR_LVL_INVALID = 0xFF, /*!< Indicates an invalid value */ 93 } esp_power_level_t; 94 95 /** 96 * @brief The enhanced type of which tx power, could set Advertising/Connection/Default and etc. 97 */ 98 typedef enum { 99 ESP_BLE_ENHANCED_PWR_TYPE_DEFAULT = 0, 100 ESP_BLE_ENHANCED_PWR_TYPE_ADV, 101 ESP_BLE_ENHANCED_PWR_TYPE_SCAN, 102 ESP_BLE_ENHANCED_PWR_TYPE_INIT, 103 ESP_BLE_ENHANCED_PWR_TYPE_CONN, 104 ESP_BLE_ENHANCED_PWR_TYPE_MAX, 105 } esp_ble_enhanced_power_type_t; 106 107 /** 108 * @brief Select buffers 109 */ 110 typedef enum { 111 ESP_BLE_LOG_BUF_HCI = 0x02, 112 ESP_BLE_LOG_BUF_CONTROLLER = 0x05, 113 } esp_ble_log_buf_t; 114 115 /** 116 * @brief Address type and address value. 117 */ 118 typedef struct { 119 uint8_t type; /*!< Type of the Bluetooth address (public, random, etc.) */ 120 uint8_t val[6]; /*!< Array containing the 6-byte Bluetooth address value */ 121 } esp_ble_addr_t; 122 123 /** 124 * @brief Set BLE TX power 125 * Connection Tx power should only be set after connection created. 126 * @param power_type : The type of which tx power, could set Advertising/Connection/Default and etc 127 * @param power_level: Power level(index) corresponding to absolute value(dbm) 128 * @return ESP_OK - success, other - failed 129 */ 130 esp_err_t esp_ble_tx_power_set(esp_ble_power_type_t power_type, esp_power_level_t power_level); 131 132 /** 133 * @brief Get BLE TX power 134 * Connection Tx power should only be get after connection created. 135 * @param power_type : The type of which tx power, could set Advertising/Connection/Default and etc 136 * @return >= 0 - Power level, < 0 - Invalid 137 */ 138 esp_power_level_t esp_ble_tx_power_get(esp_ble_power_type_t power_type); 139 140 /** 141 * @brief ENHANCED API for Setting BLE TX power 142 * Connection Tx power should only be set after connection created. 143 * @param power_type : The enhanced type of which tx power, could set Advertising/Connection/Default and etc. 144 * @param handle : The handle of Advertising or Connection and the value 0 for other enhanced power types. 145 * @param power_level: Power level(index) corresponding to absolute value(dbm) 146 * @return ESP_OK - success, other - failed 147 */ 148 esp_err_t esp_ble_tx_power_set_enhanced(esp_ble_enhanced_power_type_t power_type, uint16_t handle, esp_power_level_t power_level); 149 150 /** 151 * @brief ENHANCED API of Getting BLE TX power 152 * Connection Tx power should only be get after connection created. 153 * @param power_type : The enhanced type of which tx power, could set Advertising/Connection/Default and etc 154 * @param handle : The handle of Advertising or Connection and the value 0 for other enhanced power types. 155 * @return >= 0 - Power level, < 0 - Invalid 156 */ 157 esp_power_level_t esp_ble_tx_power_get_enhanced(esp_ble_enhanced_power_type_t power_type, uint16_t handle); 158 159 #define CONFIG_VERSION 0x20241121 160 #define CONFIG_MAGIC 0x5A5AA5A5 161 162 /** 163 * @brief Controller config options, depend on config mask. 164 * Config mask indicate which functions enabled, this means 165 * some options or parameters of some functions enabled by config mask. 166 */ 167 typedef struct { 168 uint32_t config_version; /*!< Configuration version */ 169 uint16_t ble_ll_resolv_list_size; /*!< Size of the BLE resolving list */ 170 uint16_t ble_hci_evt_hi_buf_count; /*!< Number of high priority HCI event buffers */ 171 uint16_t ble_hci_evt_lo_buf_count; /*!< Number of low priority HCI event buffers */ 172 uint8_t ble_ll_sync_list_cnt; /*!< Number of entries in the BLE sync list */ 173 uint8_t ble_ll_sync_cnt; /*!< Number of BLE sync instances */ 174 uint16_t ble_ll_rsp_dup_list_count; /*!< Size of the BLE response duplicate list */ 175 uint16_t ble_ll_adv_dup_list_count; /*!< Size of the BLE advertising duplicate list */ 176 uint8_t ble_ll_tx_pwr_dbm; /*!< BLE transmit power in dBm */ 177 uint64_t rtc_freq; /*!< RTC (Real-Time Clock) frequency */ 178 uint16_t ble_ll_sca; /*!< BLE sleep clock accuracy in ppm */ 179 uint8_t ble_ll_scan_phy_number; /*!< Number of BLE scanning physical layers */ 180 uint16_t ble_ll_conn_def_auth_pyld_tmo; /*!< BLE connection default authentication payload timeout */ 181 uint8_t ble_ll_jitter_usecs; /*!< BLE link layer jitter in microseconds */ 182 uint16_t ble_ll_sched_max_adv_pdu_usecs; /*!< BLE scheduler maximum advertising PDU duration in microseconds */ 183 uint16_t ble_ll_sched_direct_adv_max_usecs; /*!< BLE scheduler maximum direct advertising duration in microseconds */ 184 uint16_t ble_ll_sched_adv_max_usecs; /*!< BLE scheduler maximum advertising duration in microseconds */ 185 uint16_t ble_scan_rsp_data_max_len; /*!< Maximum length of BLE scan response data */ 186 uint8_t ble_ll_cfg_num_hci_cmd_pkts; /*!< Number of BLE LL configuration HCI command packets */ 187 uint32_t ble_ll_ctrl_proc_timeout_ms; /*!< BLE link layer controller process timeout in milliseconds */ 188 uint16_t nimble_max_connections; /*!< Maximum number of concurrent BLE connections */ 189 uint8_t ble_whitelist_size; /*!< Size of the BLE whitelist */ 190 uint16_t ble_acl_buf_size; /*!< Size of the BLE ACL data buffer */ 191 uint16_t ble_acl_buf_count; /*!< Number of BLE ACL data buffers */ 192 uint16_t ble_hci_evt_buf_size; /*!< Size of the BLE HCI event buffer */ 193 uint16_t ble_multi_adv_instances; /*!< Number of BLE multi-advertising instances */ 194 uint16_t ble_ext_adv_max_size; /*!< Maximum size of BLE extended advertising data */ 195 uint16_t controller_task_stack_size; /*!< Controller task stack size */ 196 uint8_t controller_task_prio; /*!< Controller task priority */ 197 uint8_t controller_run_cpu; /*!< CPU core on which the controller runs */ 198 uint8_t enable_qa_test; /*!< Enable quality assurance (QA) testing */ 199 uint8_t enable_bqb_test; /*!< Enable Bluetooth Qualification Test (BQB) testing */ 200 uint8_t enable_tx_cca; /*!< Enable Transmit Clear Channel Assessment (TX CCA) */ 201 uint8_t cca_rssi_thresh; /*!< RSSI threshold for Transmit Clear Channel Assessment (CCA) */ 202 uint8_t sleep_en; /*!< Enable sleep mode */ 203 uint8_t coex_phy_coded_tx_rx_time_limit; /*!< PHY coded transmission and reception time limit for coexistence */ 204 uint8_t dis_scan_backoff; /*!< Disable scan backoff */ 205 uint8_t ble_scan_classify_filter_enable; /*!< Enable BLE scan classify filter */ 206 uint8_t cca_drop_mode; /*!< CCA drop mode */ 207 int8_t cca_low_tx_pwr; /*!< CCA low transmit power */ 208 uint8_t main_xtal_freq; /*!< Main crystal frequency */ 209 uint32_t version_num; /*!< Controller configuration version number */ 210 uint8_t cpu_freq_mhz; /*!< CPU frequency in megahertz (MHz) */ 211 uint8_t ignore_wl_for_direct_adv; /*!< Ignore the whitelist for direct advertising */ 212 uint8_t enable_pcl; /*!< Enable power control */ 213 uint8_t csa2_select; /*!< Select CSA#2*/ 214 uint8_t enable_csr; /*!< Enable CSR */ 215 uint8_t ble_aa_check; /*!< True if adds a verification step for the Access Address within the CONNECT_IND PDU; false otherwise. Configurable in menuconfig */ 216 uint32_t config_magic; /*!< Magic number for configuration validation */ 217 } esp_bt_controller_config_t; 218 219 #define BT_CONTROLLER_INIT_CONFIG_DEFAULT() { \ 220 .config_version = CONFIG_VERSION, \ 221 .ble_ll_resolv_list_size = CONFIG_BT_LE_LL_RESOLV_LIST_SIZE, \ 222 .ble_hci_evt_hi_buf_count = DEFAULT_BT_LE_HCI_EVT_HI_BUF_COUNT, \ 223 .ble_hci_evt_lo_buf_count = DEFAULT_BT_LE_HCI_EVT_LO_BUF_COUNT, \ 224 .ble_ll_sync_list_cnt = DEFAULT_BT_LE_MAX_PERIODIC_ADVERTISER_LIST, \ 225 .ble_ll_sync_cnt = DEFAULT_BT_LE_MAX_PERIODIC_SYNCS, \ 226 .ble_ll_rsp_dup_list_count = CONFIG_BT_LE_LL_DUP_SCAN_LIST_COUNT, \ 227 .ble_ll_adv_dup_list_count = CONFIG_BT_LE_LL_DUP_SCAN_LIST_COUNT, \ 228 .ble_ll_tx_pwr_dbm = BLE_LL_TX_PWR_DBM_N, \ 229 .rtc_freq = RTC_FREQ_N, \ 230 .ble_ll_sca = CONFIG_BT_LE_LL_SCA, \ 231 .ble_ll_scan_phy_number = BLE_LL_SCAN_PHY_NUMBER_N, \ 232 .ble_ll_conn_def_auth_pyld_tmo = BLE_LL_CONN_DEF_AUTH_PYLD_TMO_N, \ 233 .ble_ll_jitter_usecs = BLE_LL_JITTER_USECS_N, \ 234 .ble_ll_sched_max_adv_pdu_usecs = BLE_LL_SCHED_MAX_ADV_PDU_USECS_N, \ 235 .ble_ll_sched_direct_adv_max_usecs = BLE_LL_SCHED_DIRECT_ADV_MAX_USECS_N, \ 236 .ble_ll_sched_adv_max_usecs = BLE_LL_SCHED_ADV_MAX_USECS_N, \ 237 .ble_scan_rsp_data_max_len = DEFAULT_BT_LE_SCAN_RSP_DATA_MAX_LEN_N, \ 238 .ble_ll_cfg_num_hci_cmd_pkts = BLE_LL_CFG_NUM_HCI_CMD_PKTS_N, \ 239 .ble_ll_ctrl_proc_timeout_ms = BLE_LL_CTRL_PROC_TIMEOUT_MS_N, \ 240 .nimble_max_connections = DEFAULT_BT_LE_MAX_CONNECTIONS, \ 241 .ble_whitelist_size = DEFAULT_BT_NIMBLE_WHITELIST_SIZE, \ 242 .ble_acl_buf_size = DEFAULT_BT_LE_ACL_BUF_SIZE, \ 243 .ble_acl_buf_count = DEFAULT_BT_LE_ACL_BUF_COUNT, \ 244 .ble_hci_evt_buf_size = DEFAULT_BT_LE_HCI_EVT_BUF_SIZE, \ 245 .ble_multi_adv_instances = DEFAULT_BT_LE_MAX_EXT_ADV_INSTANCES, \ 246 .ble_ext_adv_max_size = DEFAULT_BT_LE_EXT_ADV_MAX_SIZE, \ 247 .controller_task_stack_size = NIMBLE_LL_STACK_SIZE, \ 248 .controller_task_prio = ESP_TASK_BT_CONTROLLER_PRIO, \ 249 .controller_run_cpu = 0, \ 250 .enable_qa_test = RUN_QA_TEST, \ 251 .enable_bqb_test = RUN_BQB_TEST, \ 252 .enable_tx_cca = DEFAULT_BT_LE_TX_CCA_ENABLED, \ 253 .cca_rssi_thresh = 256 - DEFAULT_BT_LE_CCA_RSSI_THRESH, \ 254 .sleep_en = NIMBLE_SLEEP_ENABLE, \ 255 .coex_phy_coded_tx_rx_time_limit = DEFAULT_BT_LE_COEX_PHY_CODED_TX_RX_TLIM_EFF, \ 256 .dis_scan_backoff = NIMBLE_DISABLE_SCAN_BACKOFF, \ 257 .ble_scan_classify_filter_enable = 1, \ 258 .main_xtal_freq = CONFIG_XTAL_FREQ, \ 259 .version_num = efuse_hal_chip_revision(), \ 260 .cpu_freq_mhz = CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ, \ 261 .ignore_wl_for_direct_adv = 0, \ 262 .enable_pcl = DEFAULT_BT_LE_POWER_CONTROL_ENABLED, \ 263 .csa2_select = DEFAULT_BT_LE_50_FEATURE_SUPPORT, \ 264 .enable_csr = 0, \ 265 .ble_aa_check = DEFAULT_BT_LE_CTRL_CHECK_CONNECT_IND_ACCESS_ADDRESS, \ 266 .config_magic = CONFIG_MAGIC, \ 267 } 268 269 /** 270 * @brief Initialize BT controller to allocate task and other resource. 271 * This function should be called only once, before any other BT functions are called. 272 * @param cfg: Initial configuration of BT controller. 273 * @return ESP_OK - success, other - failed 274 */ 275 esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg); 276 277 /** 278 * @brief Get BT controller is initialised/de-initialised/enabled/disabled 279 * @return status value 280 */ 281 esp_bt_controller_status_t esp_bt_controller_get_status(void); 282 283 /** 284 * @brief Get BLE TX power 285 * Connection Tx power should only be get after connection created. 286 * @param power_type : The type of which tx power, could set Advertising/Connection/Default and etc 287 * @return >= 0 - Power level, < 0 - Invalid 288 */ 289 esp_power_level_t esp_ble_tx_power_get(esp_ble_power_type_t power_type); 290 291 /** 292 * @brief De-initialize BT controller to free resource and delete task. 293 * You should stop advertising and scanning, as well as 294 * disconnect all existing connections before de-initializing BT controller. 295 * 296 * This function should be called only once, after any other BT functions are called. 297 * This function is not whole completed, esp_bt_controller_init cannot called after this function. 298 * @return ESP_OK - success, other - failed 299 */ 300 esp_err_t esp_bt_controller_deinit(void); 301 302 /** 303 * @brief Enable BT controller. 304 * Due to a known issue, you cannot call esp_bt_controller_enable() a second time 305 * to change the controller mode dynamically. To change controller mode, call 306 * esp_bt_controller_disable() and then call esp_bt_controller_enable() with the new mode. 307 * @param mode : the mode(BLE/BT/BTDM) to enable. For compatible of API, retain this argument. 308 * @return ESP_OK - success, other - failed 309 */ 310 esp_err_t esp_bt_controller_enable(esp_bt_mode_t mode); 311 312 /** 313 * @brief Disable BT controller 314 * @return ESP_OK - success, other - failed 315 */ 316 esp_err_t esp_bt_controller_disable(void); 317 318 /** @brief esp_vhci_host_callback 319 * used for vhci call host function to notify what host need to do 320 */ 321 typedef struct esp_vhci_host_callback { 322 void (*notify_host_send_available)(void); /*!< callback used to notify that the host can send packet to controller */ 323 int (*notify_host_recv)(uint8_t *data, uint16_t len); /*!< callback used to notify that the controller has a packet to send to the host*/ 324 } esp_vhci_host_callback_t; 325 326 /** @brief esp_vhci_host_check_send_available 327 * used for check actively if the host can send packet to controller or not. 328 * @return true for ready to send, false means cannot send packet 329 */ 330 bool esp_vhci_host_check_send_available(void); 331 332 /** @brief esp_vhci_host_send_packet 333 * host send packet to controller 334 * 335 * Should not call this function from within a critical section 336 * or when the scheduler is suspended. 337 * 338 * @param data the packet point 339 * @param len the packet length 340 */ 341 void esp_vhci_host_send_packet(uint8_t *data, uint16_t len); 342 343 /** @brief esp_vhci_host_register_callback 344 * register the vhci reference callback 345 * struct defined by vhci_host_callback structure. 346 * @param callback esp_vhci_host_callback type variable 347 * @return ESP_OK - success, ESP_FAIL - failed 348 */ 349 esp_err_t esp_vhci_host_register_callback(const esp_vhci_host_callback_t *callback); 350 351 /** @brief esp_bt_controller_mem_release 352 * release the controller memory as per the mode 353 * 354 * This function releases the BSS, data and other sections of the controller to heap. The total size is about 70k bytes. 355 * 356 * esp_bt_controller_mem_release(mode) should be called only before esp_bt_controller_init() 357 * or after esp_bt_controller_deinit(). 358 * 359 * Note that once BT controller memory is released, the process cannot be reversed. It means you cannot use the bluetooth 360 * mode which you have released by this function. 361 * 362 * If your firmware will later upgrade the Bluetooth controller mode (BLE -> BT Classic or disabled -> enabled) 363 * then do not call this function. 364 * 365 * If the app calls esp_bt_controller_enable(ESP_BT_MODE_BLE) to use BLE only then it is safe to call 366 * esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT) at initialization time to free unused BT Classic memory. 367 * 368 * If the mode is ESP_BT_MODE_BTDM, then it may be useful to call API esp_bt_mem_release(ESP_BT_MODE_BTDM) instead, 369 * which internally calls esp_bt_controller_mem_release(ESP_BT_MODE_BTDM) and additionally releases the BSS and data 370 * consumed by the BT/BLE host stack to heap. For more details about usage please refer to the documentation of 371 * esp_bt_mem_release() function 372 * 373 * @param mode : the mode want to release memory 374 * @return ESP_OK - success, other - failed 375 */ 376 esp_err_t esp_bt_controller_mem_release(esp_bt_mode_t mode); 377 378 /** @brief esp_bt_mem_release 379 * release controller memory and BSS and data section of the BT/BLE host stack as per the mode 380 * 381 * This function first releases controller memory by internally calling esp_bt_controller_mem_release(). 382 * Additionally, if the mode is set to ESP_BT_MODE_BTDM, it also releases the BSS and data consumed by the BT/BLE host stack to heap 383 * 384 * Note that once BT memory is released, the process cannot be reversed. It means you cannot use the bluetooth 385 * mode which you have released by this function. 386 * 387 * If your firmware will later upgrade the Bluetooth controller mode (BLE -> BT Classic or disabled -> enabled) 388 * then do not call this function. 389 * 390 * If you never intend to use bluetooth in a current boot-up cycle, you can call esp_bt_mem_release(ESP_BT_MODE_BTDM) 391 * before esp_bt_controller_init or after esp_bt_controller_deinit. 392 * 393 * For example, if a user only uses bluetooth for setting the WiFi configuration, and does not use bluetooth in the rest of the product operation". 394 * In such cases, after receiving the WiFi configuration, you can disable/deinit bluetooth and release its memory. 395 * Below is the sequence of APIs to be called for such scenarios: 396 * 397 * esp_bluedroid_disable(); 398 * esp_bluedroid_deinit(); 399 * esp_bt_controller_disable(); 400 * esp_bt_controller_deinit(); 401 * esp_bt_mem_release(ESP_BT_MODE_BTDM); 402 * 403 * @param mode : the mode whose memory is to be released 404 * @return ESP_OK - success, other - failed 405 */ 406 esp_err_t esp_bt_mem_release(esp_bt_mode_t mode); 407 408 /** 409 * @brief Returns random static address or -1 if not present. 410 * @return ESP_OK - success, other - failed 411 */ 412 extern int esp_ble_hw_get_static_addr(esp_ble_addr_t *addr); 413 414 #if CONFIG_BT_LE_CONTROLLER_LOG_ENABLED 415 /** 416 * @brief dump all log information cached in buffers. 417 * @param output : true for log dump, false will take no effect 418 */ 419 void esp_ble_controller_log_dump_all(bool output); 420 #endif // CONFIG_BT_LE_CONTROLLER_LOG_ENABLED 421 422 #if CONFIG_PM_ENABLE 423 modem_clock_lpclk_src_t esp_bt_get_lpclk_src(void); 424 425 void esp_bt_set_lpclk_src(modem_clock_lpclk_src_t clk_src); 426 #endif // CONFIG_PM_ENABLE 427 428 #ifdef __cplusplus 429 } 430 #endif 431 432 #endif /* __ESP_BT_H__ */ 433
