Fork ESP-IDF's bluetooth component

i want better sbc encoding, and no cla will stop me

1 files changed, 439 insertions, 0 deletions

diff --git a/lib/bt/include/esp32h2/include/esp_bt.h b/lib/bt/include/esp32h2/include/esp_bt.h
new file mode 100644
index 00000000..a1c7aed8
--- /dev/null
+++ b/lib/bt/include/esp32h2/include/esp_bt.h
@@ -0,0 +1,439 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __ESP_BT_H__
+#define __ESP_BT_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+#include "sdkconfig.h"
+#include "esp_task.h"
+
+#include "nimble/nimble_npl.h"
+#include "../../../../controller/esp32h2/esp_bt_cfg.h"
+
+#ifdef CONFIG_BT_LE_HCI_INTERFACE_USE_UART
+#include "driver/uart.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Bluetooth mode for controller enable/disable.
+ */
+typedef enum {
+    ESP_BT_MODE_IDLE       = 0x00,   /*!< Bluetooth is not running */
+    ESP_BT_MODE_BLE        = 0x01,   /*!< Run BLE mode */
+    ESP_BT_MODE_CLASSIC_BT = 0x02,   /*!< Run Classic BT mode */
+    ESP_BT_MODE_BTDM       = 0x03,   /*!< Run dual mode */
+} esp_bt_mode_t;
+
+/**
+ * @brief Bluetooth controller enable/disable/initialised/de-initialised status.
+ */
+typedef enum {
+    ESP_BT_CONTROLLER_STATUS_IDLE = 0,   /*!< Controller is in idle state */
+    ESP_BT_CONTROLLER_STATUS_INITED,     /*!< Controller is in initialising state */
+    ESP_BT_CONTROLLER_STATUS_ENABLED,    /*!< Controller is in enabled state */
+    ESP_BT_CONTROLLER_STATUS_NUM,        /*!< Controller is in disabled state */
+} esp_bt_controller_status_t;
+
+/**
+ * @brief BLE tx power type
+ *        ESP_BLE_PWR_TYPE_CONN_HDL0-8: for each connection, and only be set after connection completed.
+ *                                      when disconnect, the correspond TX power is not effected.
+ *        ESP_BLE_PWR_TYPE_ADV : for advertising/scan response.
+ *        ESP_BLE_PWR_TYPE_SCAN : for scan.
+ *        ESP_BLE_PWR_TYPE_DEFAULT : if each connection's TX power is not set, it will use this default value.
+ *                                   if neither in scan mode nor in adv mode, it will use this default value.
+ *        If none of power type is set, system will use ESP_PWR_LVL_P3 as default for ADV/SCAN/CONN0-9.
+ */
+typedef enum {
+    ESP_BLE_PWR_TYPE_CONN_HDL0  = 0,            /*!< For connection handle 0 */
+    ESP_BLE_PWR_TYPE_CONN_HDL1  = 1,            /*!< For connection handle 1 */
+    ESP_BLE_PWR_TYPE_CONN_HDL2  = 2,            /*!< For connection handle 2 */
+    ESP_BLE_PWR_TYPE_CONN_HDL3  = 3,            /*!< For connection handle 3 */
+    ESP_BLE_PWR_TYPE_CONN_HDL4  = 4,            /*!< For connection handle 4 */
+    ESP_BLE_PWR_TYPE_CONN_HDL5  = 5,            /*!< For connection handle 5 */
+    ESP_BLE_PWR_TYPE_CONN_HDL6  = 6,            /*!< For connection handle 6 */
+    ESP_BLE_PWR_TYPE_CONN_HDL7  = 7,            /*!< For connection handle 7 */
+    ESP_BLE_PWR_TYPE_CONN_HDL8  = 8,            /*!< For connection handle 8 */
+    ESP_BLE_PWR_TYPE_ADV        = 9,            /*!< For advertising */
+    ESP_BLE_PWR_TYPE_SCAN       = 10,           /*!< For scan */
+    ESP_BLE_PWR_TYPE_DEFAULT    = 11,           /*!< For default, if not set other, it will use default value */
+    ESP_BLE_PWR_TYPE_NUM        = 12,           /*!< TYPE numbers */
+} esp_ble_power_type_t;
+
+/**
+ * @brief Bluetooth TX power level(index), it's just a index corresponding to power(dbm).
+ */
+typedef enum {
+    ESP_PWR_LVL_N24 = 0,              /*!< Corresponding to -24dbm */
+    ESP_PWR_LVL_N21 = 1,              /*!< Corresponding to -21dbm */
+    ESP_PWR_LVL_N18 = 2,              /*!< Corresponding to -18dbm */
+    ESP_PWR_LVL_N15 = 3,              /*!< Corresponding to -15dbm */
+    ESP_PWR_LVL_N12 = 4,              /*!< Corresponding to -12dbm */
+    ESP_PWR_LVL_N9  = 5,              /*!< Corresponding to  -9dbm */
+    ESP_PWR_LVL_N6  = 6,              /*!< Corresponding to  -6dbm */
+    ESP_PWR_LVL_N3  = 7,              /*!< Corresponding to  -3dbm */
+    ESP_PWR_LVL_N0  = 8,              /*!< Corresponding to   0dbm */
+    ESP_PWR_LVL_P3  = 9,              /*!< Corresponding to  +3dbm */
+    ESP_PWR_LVL_P6  = 10,             /*!< Corresponding to  +6dbm */
+    ESP_PWR_LVL_P9  = 11,             /*!< Corresponding to  +9dbm */
+    ESP_PWR_LVL_P12 = 12,             /*!< Corresponding to  +12dbm */
+    ESP_PWR_LVL_P15 = 13,             /*!< Corresponding to  +15dbm */
+    ESP_PWR_LVL_P16 = 14,             /*!< Corresponding to  +18dbm, this enum variable has been deprecated */
+    ESP_PWR_LVL_P17 = 14,             /*!< Corresponding to  +18dbm, this enum variable has been deprecated */
+    ESP_PWR_LVL_P18 = 14,             /*!< Corresponding to  +18dbm */
+    ESP_PWR_LVL_P19 = 15,             /*!< Corresponding to  +20dbm, this enum variable has been deprecated */
+    ESP_PWR_LVL_P20 = 15,             /*!< Corresponding to  +20dbm */
+    ESP_PWR_LVL_INVALID = 0xFF,       /*!< Indicates an invalid value */
+} esp_power_level_t;
+
+/**
+ * @brief The enhanced type of which tx power, could set Advertising/Connection/Default and etc.
+ */
+typedef enum {
+    ESP_BLE_ENHANCED_PWR_TYPE_DEFAULT = 0,
+    ESP_BLE_ENHANCED_PWR_TYPE_ADV,
+    ESP_BLE_ENHANCED_PWR_TYPE_SCAN,
+    ESP_BLE_ENHANCED_PWR_TYPE_INIT,
+    ESP_BLE_ENHANCED_PWR_TYPE_CONN,
+    ESP_BLE_ENHANCED_PWR_TYPE_MAX,
+} esp_ble_enhanced_power_type_t;
+
+/**
+ * @brief Address type and address value.
+ */
+typedef struct {
+    uint8_t type;     /*!< Type of the Bluetooth address (public, random, etc.) */
+    uint8_t val[6];   /*!< Array containing the 6-byte Bluetooth address value */
+} esp_ble_addr_t;
+
+/**
+ * @brief Select buffers
+*/
+typedef enum {
+    ESP_BLE_LOG_BUF_HCI         = 0x02,
+    ESP_BLE_LOG_BUF_CONTROLLER  = 0x05,
+} esp_ble_log_buf_t;
+
+/**
+ * @brief  Set BLE TX power
+ *         Connection Tx power should only be set after connection created.
+ * @param  power_type : The type of which tx power, could set Advertising/Connection/Default and etc
+ * @param  power_level: Power level(index) corresponding to absolute value(dbm)
+ * @return              ESP_OK - success, other - failed
+ */
+esp_err_t esp_ble_tx_power_set(esp_ble_power_type_t power_type, esp_power_level_t power_level);
+
+/**
+ * @brief  Get BLE TX power
+ *         Connection Tx power should only be get after connection created.
+ * @param  power_type : The type of which tx power, could set Advertising/Connection/Default and etc
+ * @return             >= 0 - Power level, < 0 - Invalid
+ */
+esp_power_level_t esp_ble_tx_power_get(esp_ble_power_type_t power_type);
+
+/**
+ * @brief  ENHANCED API for Setting BLE TX power
+ *         Connection Tx power should only be set after connection created.
+ * @param  power_type : The enhanced type of which tx power, could set Advertising/Connection/Default and etc
+ * @param  handle : The handle of Advertising or Connection and the value 0 for other enhanced power types.
+ * @param  power_level: Power level(index) corresponding to absolute value(dbm)
+ * @return              ESP_OK - success, other - failed
+ */
+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);
+
+/**
+ * @brief  ENHANCED API of Getting BLE TX power
+ *         Connection Tx power should only be get after connection created.
+ * @param  power_type : The enhanced type of which tx power, could set Advertising/Connection/Default and etc
+ * @param  handle : The handle of Advertising or Connection and the value 0 for other enhanced power types.
+ * @return             >= 0 - Power level, < 0 - Invalid
+ */
+esp_power_level_t esp_ble_tx_power_get_enhanced(esp_ble_enhanced_power_type_t power_type, uint16_t handle);
+
+#define CONFIG_VERSION  0x20231124
+#define CONFIG_MAGIC    0x5A5AA5A5
+
+/**
+ * @brief Controller config options, depend on config mask.
+ *        Config mask indicate which functions enabled, this means
+ *        some options or parameters of some functions enabled by config mask.
+ */
+typedef struct {
+    uint32_t config_version;                     /*!< Version number of the defined structure */
+    uint16_t ble_ll_resolv_list_size;            /*!< Size of the resolvable private address list */
+    uint16_t ble_hci_evt_hi_buf_count;           /*!< Count of high buffers for HCI events */
+    uint16_t ble_hci_evt_lo_buf_count;           /*!< Count of low buffers for HCI events */
+    uint8_t ble_ll_sync_list_cnt;                /*!< Number of synchronization lists */
+    uint8_t ble_ll_sync_cnt;                     /*!< Number of synchronizations */
+    uint16_t ble_ll_rsp_dup_list_count;          /*!< Count of duplicated lists for scan response packets */
+    uint16_t ble_ll_adv_dup_list_count;          /*!< Count of duplicated lists for advertising packets */
+    uint8_t ble_ll_tx_pwr_dbm;                   /*!< Tx power (transmit power) in dBm */
+    uint64_t rtc_freq;                           /*!< Frequency of RTC (Real-Time Clock) */
+    uint16_t ble_ll_sca;                         /*!< Sleep Clock Accuracy (SCA) parameter */
+    uint8_t ble_ll_scan_phy_number;              /*!< Number of PHYs supported for scanning */
+    uint16_t ble_ll_conn_def_auth_pyld_tmo;      /*!< Connection default authentication payload timeout */
+    uint8_t ble_ll_jitter_usecs;                 /*!< Jitter time in microseconds */
+    uint16_t ble_ll_sched_max_adv_pdu_usecs;     /*!< Maximum time in microseconds for advertising PDU scheduling */
+    uint16_t ble_ll_sched_direct_adv_max_usecs;  /*!< Maximum time in microseconds for directed advertising scheduling */
+    uint16_t ble_ll_sched_adv_max_usecs;         /*!< Maximum time in microseconds for advertising scheduling */
+    uint16_t ble_scan_rsp_data_max_len;          /*!< Maximum length of scan response data */
+    uint8_t ble_ll_cfg_num_hci_cmd_pkts;         /*!< Number of HCI command packets that can be queued */
+    uint32_t ble_ll_ctrl_proc_timeout_ms;        /*!< Control processing timeout in milliseconds */
+    uint16_t nimble_max_connections;             /*!< Maximum number of connections supported */
+    uint8_t ble_whitelist_size;                  /*!< Size of the white list */
+    uint16_t ble_acl_buf_size;                   /*!< Buffer size of ACL (Asynchronous Connection-Less) data */
+    uint16_t ble_acl_buf_count;                  /*!< Buffer count of ACL data */
+    uint16_t ble_hci_evt_buf_size;               /*!< Buffer size for HCI event data */
+    uint16_t ble_multi_adv_instances;            /*!< Number of advertising instances */
+    uint16_t ble_ext_adv_max_size;               /*!< Maximum size of extended advertising data */
+    uint16_t controller_task_stack_size;         /*!< Size of Bluetooth controller task stack */
+    uint8_t controller_task_prio;                /*!< Priority of the Bluetooth task */
+    uint8_t controller_run_cpu;                  /*!< CPU number on which the Bluetooth controller task runs */
+    uint8_t enable_qa_test;                      /*!< Enable for QA test */
+    uint8_t enable_bqb_test;                     /*!< Enable for BQB test */
+    uint8_t enable_uart_hci;                     /*!< Enable UART for HCI (Host Controller Interface) */
+    uint8_t ble_hci_uart_port;                   /*!< Port of UART for HCI */
+    uint32_t ble_hci_uart_baud;                  /*!< Baudrate of UART for HCI */
+    uint8_t ble_hci_uart_data_bits;              /*!< Data bits of UART for HCI */
+    uint8_t ble_hci_uart_stop_bits;              /*!< Stop bits of UART for HCI */
+    uint8_t ble_hci_uart_flow_ctrl;              /*!< Flow control of UART for HCI */
+    uint8_t ble_hci_uart_uart_parity;            /*!< UART parity */
+    uint8_t enable_tx_cca;                       /*!< Enable Clear Channel Assessment (CCA) when transmitting */
+    uint8_t cca_rssi_thresh;                     /*!< RSSI threshold for CCA */
+    uint8_t sleep_en;                            /*!< Enable sleep functionality */
+    uint8_t coex_phy_coded_tx_rx_time_limit;     /*!< Coexistence PHY coded TX and RX time limit */
+    uint8_t dis_scan_backoff;                    /*!< Disable scan backoff */
+    uint8_t ble_scan_classify_filter_enable;     /*!< Enable classification filter for BLE scan */
+    uint8_t cca_drop_mode;                       /*!< CCA drop mode */
+    int8_t cca_low_tx_pwr;                       /*!< Low TX power setting for CCA */
+    uint8_t main_xtal_freq;                      /*!< Main crystal frequency */
+    uint8_t cpu_freq_mhz;                        /*!< CPU frequency in megahertz */
+    uint8_t ignore_wl_for_direct_adv;            /*!< Ignore the white list for directed advertising */
+    uint8_t enable_pcl;                          /*!< Enable power control */
+    uint8_t csa2_select;                             /*!< Select CSA#2*/
+    uint32_t config_magic;                       /*!< Configuration magic value */
+} esp_bt_controller_config_t;
+
+
+#define BT_CONTROLLER_INIT_CONFIG_DEFAULT() {                                           \
+    .config_version = CONFIG_VERSION,                                                   \
+    .ble_ll_resolv_list_size = CONFIG_BT_LE_LL_RESOLV_LIST_SIZE,                        \
+    .ble_hci_evt_hi_buf_count = DEFAULT_BT_LE_HCI_EVT_HI_BUF_COUNT,                     \
+    .ble_hci_evt_lo_buf_count = DEFAULT_BT_LE_HCI_EVT_LO_BUF_COUNT,                     \
+    .ble_ll_sync_list_cnt = DEFAULT_BT_LE_MAX_PERIODIC_ADVERTISER_LIST,                 \
+    .ble_ll_sync_cnt = DEFAULT_BT_LE_MAX_PERIODIC_SYNCS,                                \
+    .ble_ll_rsp_dup_list_count = CONFIG_BT_LE_LL_DUP_SCAN_LIST_COUNT,                   \
+    .ble_ll_adv_dup_list_count = CONFIG_BT_LE_LL_DUP_SCAN_LIST_COUNT,                   \
+    .ble_ll_tx_pwr_dbm = BLE_LL_TX_PWR_DBM_N,                                           \
+    .rtc_freq = RTC_FREQ_N,                                                             \
+    .ble_ll_sca = CONFIG_BT_LE_LL_SCA,                                                  \
+    .ble_ll_scan_phy_number = BLE_LL_SCAN_PHY_NUMBER_N,                                 \
+    .ble_ll_conn_def_auth_pyld_tmo = BLE_LL_CONN_DEF_AUTH_PYLD_TMO_N,                   \
+    .ble_ll_jitter_usecs = BLE_LL_JITTER_USECS_N,                                       \
+    .ble_ll_sched_max_adv_pdu_usecs = BLE_LL_SCHED_MAX_ADV_PDU_USECS_N,                 \
+    .ble_ll_sched_direct_adv_max_usecs = BLE_LL_SCHED_DIRECT_ADV_MAX_USECS_N,           \
+    .ble_ll_sched_adv_max_usecs = BLE_LL_SCHED_ADV_MAX_USECS_N,                         \
+    .ble_scan_rsp_data_max_len = DEFAULT_BT_LE_SCAN_RSP_DATA_MAX_LEN_N,                 \
+    .ble_ll_cfg_num_hci_cmd_pkts = BLE_LL_CFG_NUM_HCI_CMD_PKTS_N,                       \
+    .ble_ll_ctrl_proc_timeout_ms = BLE_LL_CTRL_PROC_TIMEOUT_MS_N,                       \
+    .nimble_max_connections = DEFAULT_BT_LE_MAX_CONNECTIONS,                            \
+    .ble_whitelist_size = DEFAULT_BT_NIMBLE_WHITELIST_SIZE,                             \
+    .ble_acl_buf_size = DEFAULT_BT_LE_ACL_BUF_SIZE,                                     \
+    .ble_acl_buf_count = DEFAULT_BT_LE_ACL_BUF_COUNT,                                   \
+    .ble_hci_evt_buf_size = DEFAULT_BT_LE_HCI_EVT_BUF_SIZE,                             \
+    .ble_multi_adv_instances = DEFAULT_BT_LE_MAX_EXT_ADV_INSTANCES,                     \
+    .ble_ext_adv_max_size = DEFAULT_BT_LE_EXT_ADV_MAX_SIZE,                             \
+    .controller_task_stack_size = NIMBLE_LL_STACK_SIZE,                                 \
+    .controller_task_prio       = ESP_TASK_BT_CONTROLLER_PRIO,                          \
+    .controller_run_cpu         = 0,                                                    \
+    .enable_qa_test             = RUN_QA_TEST,                                          \
+    .enable_bqb_test            = RUN_BQB_TEST,                                         \
+    .enable_uart_hci            = HCI_UART_EN,                                          \
+    .ble_hci_uart_port          = DEFAULT_BT_LE_HCI_UART_PORT,                          \
+    .ble_hci_uart_baud          = DEFAULT_BT_LE_HCI_UART_BAUD,                          \
+    .ble_hci_uart_data_bits     = DEFAULT_BT_LE_HCI_UART_DATA_BITS,                     \
+    .ble_hci_uart_stop_bits     = DEFAULT_BT_LE_HCI_UART_STOP_BITS,                     \
+    .ble_hci_uart_flow_ctrl     = DEFAULT_BT_LE_HCI_UART_FLOW_CTRL,                     \
+    .ble_hci_uart_uart_parity   = DEFAULT_BT_LE_HCI_UART_PARITY,                        \
+    .enable_tx_cca              = DEFAULT_BT_LE_TX_CCA_ENABLED,                         \
+    .cca_rssi_thresh            = 256 - DEFAULT_BT_LE_CCA_RSSI_THRESH,                  \
+    .sleep_en                   = NIMBLE_SLEEP_ENABLE,                                  \
+    .coex_phy_coded_tx_rx_time_limit = DEFAULT_BT_LE_COEX_PHY_CODED_TX_RX_TLIM_EFF,     \
+    .dis_scan_backoff           = NIMBLE_DISABLE_SCAN_BACKOFF,                          \
+    .ble_scan_classify_filter_enable         = 1,                                       \
+    .main_xtal_freq             = CONFIG_XTAL_FREQ,                                     \
+    .cpu_freq_mhz               = CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ,                      \
+    .ignore_wl_for_direct_adv   = 0,                                                    \
+    .enable_pcl                 = 0,                                                    \
+    .csa2_select                = DEFAULT_BT_LE_50_FEATURE_SUPPORT,                      \
+    .config_magic = CONFIG_MAGIC,                                                       \
+}
+
+/**
+ * @brief       Initialize BT controller to allocate task and other resource.
+ *              This function should be called only once, before any other BT functions are called.
+ * @param  cfg: Initial configuration of BT controller.
+ * @return      ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg);
+
+/**
+ * @brief  Get BT controller is initialised/de-initialised/enabled/disabled
+ * @return status value
+ */
+esp_bt_controller_status_t esp_bt_controller_get_status(void);
+
+/**
+ * @brief  Get BLE TX power
+ *         Connection Tx power should only be get after connection created.
+ * @param  power_type : The type of which tx power, could set Advertising/Connection/Default and etc
+ * @return             >= 0 - Power level, < 0 - Invalid
+ */
+esp_power_level_t esp_ble_tx_power_get(esp_ble_power_type_t power_type);
+
+/**
+ * @brief  De-initialize BT controller to free resource and delete task.
+ *         You should stop advertising and scanning, as well as
+ *         disconnect all existing connections before de-initializing BT controller.
+ *
+ * This function should be called only once, after any other BT functions are called.
+ * This function is not whole completed, esp_bt_controller_init cannot called after this function.
+ * @return  ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_controller_deinit(void);
+
+/**
+ * @brief Enable BT controller.
+ *               Due to a known issue, you cannot call esp_bt_controller_enable() a second time
+ *               to change the controller mode dynamically. To change controller mode, call
+ *               esp_bt_controller_disable() and then call esp_bt_controller_enable() with the new mode.
+ * @param mode : the mode(BLE/BT/BTDM) to enable. For compatible of API, retain this argument.
+ * @return       ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_controller_enable(esp_bt_mode_t mode);
+
+/**
+ * @brief  Disable BT controller
+ * @return       ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_controller_disable(void);
+
+/** @brief esp_vhci_host_callback
+ *  used for vhci call host function to notify what host need to do
+ */
+typedef struct esp_vhci_host_callback {
+    void (*notify_host_send_available)(void);               /*!< callback used to notify that the host can send packet to controller */
+    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*/
+} esp_vhci_host_callback_t;
+
+/** @brief esp_vhci_host_check_send_available
+ *  used for check actively if the host can send packet to controller or not.
+ *  @return true for ready to send, false means cannot send packet
+ */
+bool esp_vhci_host_check_send_available(void);
+
+/** @brief esp_vhci_host_send_packet
+ * host send packet to controller
+ *
+ * Should not call this function from within a critical section
+ * or when the scheduler is suspended.
+ *
+ * @param data the packet point
+ * @param len the packet length
+ */
+void esp_vhci_host_send_packet(uint8_t *data, uint16_t len);
+
+/** @brief esp_vhci_host_register_callback
+ * register the vhci reference callback
+ * struct defined by vhci_host_callback structure.
+ * @param callback esp_vhci_host_callback type variable
+ * @return ESP_OK - success, ESP_FAIL - failed
+ */
+esp_err_t esp_vhci_host_register_callback(const esp_vhci_host_callback_t *callback);
+
+/** @brief esp_bt_controller_mem_release
+ * release the controller memory as per the mode
+ *
+ * This function releases the BSS, data and other sections of the controller to heap. The total size is about 70k bytes.
+ *
+ * esp_bt_controller_mem_release(mode) should be called only before esp_bt_controller_init()
+ * or after esp_bt_controller_deinit().
+ *
+ * Note that once BT controller memory is released, the process cannot be reversed. It means you cannot use the bluetooth
+ * mode which you have released by this function.
+ *
+ * If your firmware will later upgrade the Bluetooth controller mode (BLE -> BT Classic or disabled -> enabled)
+ * then do not call this function.
+ *
+ * If the app calls esp_bt_controller_enable(ESP_BT_MODE_BLE) to use BLE only then it is safe to call
+ * esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT) at initialization time to free unused BT Classic memory.
+ *
+ * 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,
+ * which internally calls esp_bt_controller_mem_release(ESP_BT_MODE_BTDM) and additionally releases the BSS and data
+ * consumed by the BT/BLE host stack to heap. For more details about usage please refer to the documentation of
+ * esp_bt_mem_release() function
+ *
+ * @param mode : the mode want to release memory
+ * @return ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_controller_mem_release(esp_bt_mode_t mode);
+
+/** @brief esp_bt_mem_release
+ * release controller memory and BSS and data section of the BT/BLE host stack as per the mode
+ *
+ * This function first releases controller memory by internally calling esp_bt_controller_mem_release().
+ * 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
+ *
+ * Note that once BT memory is released, the process cannot be reversed. It means you cannot use the bluetooth
+ * mode which you have released by this function.
+ *
+ * If your firmware will later upgrade the Bluetooth controller mode (BLE -> BT Classic or disabled -> enabled)
+ * then do not call this function.
+ *
+ * If you never intend to use bluetooth in a current boot-up cycle, you can call esp_bt_mem_release(ESP_BT_MODE_BTDM)
+ * before esp_bt_controller_init or after esp_bt_controller_deinit.
+ *
+ * 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".
+ * In such cases, after receiving the WiFi configuration, you can disable/deinit bluetooth and release its memory.
+ * Below is the sequence of APIs to be called for such scenarios:
+ *
+ *      esp_bluedroid_disable();
+ *      esp_bluedroid_deinit();
+ *      esp_bt_controller_disable();
+ *      esp_bt_controller_deinit();
+ *      esp_bt_mem_release(ESP_BT_MODE_BTDM);
+ *
+ * @param mode : the mode whose memory is to be released
+ * @return ESP_OK - success, other - failed
+ */
+esp_err_t esp_bt_mem_release(esp_bt_mode_t mode);
+
+/**
+ * @brief Returns random static address or -1 if not present.
+ * @return ESP_OK - success, other - failed
+ */
+extern int esp_ble_hw_get_static_addr(esp_ble_addr_t *addr);
+
+#if CONFIG_BT_LE_CONTROLLER_LOG_ENABLED
+/**
+ * @brief dump all log information cached in buffers.
+ * @param output : true for log dump, false will take no effect
+ */
+void esp_ble_controller_log_dump_all(bool output);
+#endif // CONFIG_BT_LE_CONTROLLER_LOG_ENABLED
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ESP_BT_H__ */