esp-idf/components/bt/Kconfig

menu Bluetooth


config BT_ENABLED
    bool "Bluetooth"
    help
        Select this option to enable Bluetooth and show the submenu with Bluetooth configuration choices.

choice BTDM_CONTROLLER_PINNED_TO_CORE_CHOICE
    prompt "The cpu core which bluetooth controller run"
    depends on BT_ENABLED && !FREERTOS_UNICORE
    help
        Specify the cpu core to run bluetooth controller.
        Can not specify no-affinity.

config BTDM_CONTROLLER_PINNED_TO_CORE_0
    bool "Core 0 (PRO CPU)"
config BTDM_CONTROLLER_PINNED_TO_CORE_1
    bool "Core 1 (APP CPU)"
    depends on !FREERTOS_UNICORE
endchoice

config BTDM_CONTROLLER_PINNED_TO_CORE
    int
    default 0 if BTDM_CONTROLLER_PINNED_TO_CORE_0
    default 1 if BTDM_CONTROLLER_PINNED_TO_CORE_1
    default 0

choice BTDM_CONTROLLER_HCI_MODE_CHOICE
    prompt "HCI mode"
    depends on BT_ENABLED
    help
        Speicify HCI mode as VHCI or UART(H4)

config BTDM_CONTROLLER_HCI_MODE_VHCI
    bool "VHCI"
    help 
        Normal option. Mostly, choose this VHCI when bluetooth host run on ESP32, too.

config BTDM_CONTROLLER_HCI_MODE_UART_H4
    bool "UART(H4)"
    help
        If use external bluetooth host which run on other hardware and use UART as the HCI interface,
        choose this option.
endchoice

menu "HCI UART(H4) Options"
    visible if BTDM_CONTROLLER_HCI_MODE_UART_H4

config BT_HCI_UART_NO
    int "UART Number for HCI"
    depends on BTDM_CONTROLLER_HCI_MODE_UART_H4
    range 1 2
    default 1
    help
        Uart number for HCI. The available uart is UART1 and UART2.

config BT_HCI_UART_BAUDRATE
    int "UART Baudrate for HCI"
    depends on BTDM_CONTROLLER_HCI_MODE_UART_H4
    range 115200 921600
    default 921600
    help
        UART Baudrate for HCI. Please use standard baudrate.
endmenu

menuconfig BLUEDROID_ENABLED
    bool "Bluedroid Enable"
    depends on BTDM_CONTROLLER_HCI_MODE_VHCI
    default y
    help
        This enables the default Bluedroid Bluetooth stack

choice BLUEDROID_PINNED_TO_CORE_CHOICE
    prompt "The cpu core which Bluedroid run"
    depends on BLUEDROID_ENABLED && !FREERTOS_UNICORE
    help
        Which the cpu core to run Bluedroid. Can choose core0 and core1.
        Can not specify no-affinity.

config BLUEDROID_PINNED_TO_CORE_0
    bool "Core 0 (PRO CPU)"
config BLUEDROID_PINNED_TO_CORE_1
    bool "Core 1 (APP CPU)"
    depends on !FREERTOS_UNICORE
endchoice

config BLUEDROID_PINNED_TO_CORE
    int
    depends on BLUEDROID_ENABLED
    default 0 if BLUEDROID_PINNED_TO_CORE_0
    default 1 if BLUEDROID_PINNED_TO_CORE_1
    default 0

config BTC_TASK_STACK_SIZE
    int "Bluetooth event (callback to application) task stack size"
    depends on BLUEDROID_ENABLED
    default 3072
    help
        This select btc task stack size

config BLUEDROID_MEM_DEBUG
    bool "Bluedroid memory debug"
    depends on BLUEDROID_ENABLED
    default n
    help
        Bluedroid memory debug

config CLASSIC_BT_ENABLED
    bool "Classic Bluetooth"
    depends on BLUEDROID_ENABLED
    default n
    help
        For now this option needs "SMP_ENABLE" to be set to yes

config A2DP_ENABLE
    bool "A2DP"
    depends on CLASSIC_BT_ENABLED
    default n
    help
        Advanced Audio Distrubution Profile
    
choice A2DP_ROLE
    prompt "A2DP ROLE config"
    depends on A2DP_ENABLE

config A2DP_SINK_ENABLE
    bool "SINK"
config A2DP_SRC_ENABLE
    bool "SOURCE"
endchoice

config A2DP_SINK_TASK_STACK_SIZE
    int "A2DP sink (audio stream decoding) task stack size"
    depends on A2DP_ENABLE && A2DP_SINK_ENABLE
    default 2048

config A2DP_SOURCE_TASK_STACK_SIZE
    int "A2DP source (audio stream encoding) task stack size"
    depends on A2DP_ENABLE && A2DP_SRC_ENABLE
    default 2048

config BT_SPP_ENABLED
    bool "SPP"
    depends on CLASSIC_BT_ENABLED
    default n
    help
        This enables the Serial Port Profile

config GATTS_ENABLE
    bool "Include GATT server module(GATTS)"
    depends on BLUEDROID_ENABLED
    default y 
    help
        This option can be disabled when the app work only on gatt client mode

config GATTC_ENABLE
    bool "Include GATT client module(GATTC)"
    depends on BLUEDROID_ENABLED
    default y
    help
        This option can be close when the app work only on gatt server mode

config BLE_SMP_ENABLE
   bool "Include BLE security module(SMP)"
   depends on BLUEDROID_ENABLED
   default y
   help
       This option can be close when the app not used the ble security connect.

config BT_STACK_NO_LOG
    bool "Close the bluedroid bt stack log print"
    depends on BLUEDROID_ENABLED
    default n
    help
        This select can save the rodata code size

config BT_ACL_CONNECTIONS
    int "BT/BLE MAX ACL CONNECTIONS(1~7)"
    depends on BLUEDROID_ENABLED
    range 1 7
    default 4
    help 
        Maximum BT/BLE connection count

config BT_ALLOCATION_FROM_SPIRAM_FIRST
    bool "BT/BLE will first malloc the memory from the PSRAM"
    depends on BLUEDROID_ENABLED
    default n
    help
        This select can save the internal RAM if there have the PSRAM

config BT_BLE_DYNAMIC_ENV_MEMORY
    bool "Use dynamic memory allocation in BT/BLE stack"
    depends on BLUEDROID_ENABLED
    default n
    help
        This select can make the allocation of memory will become more flexible

config SMP_ENABLE
   bool
   depends on BLUEDROID_ENABLED
   default CLASSIC_BT_ENABLED || BLE_SMP_ENABLE
   
# Memory reserved at start of DRAM for Bluetooth stack
config BT_RESERVE_DRAM
    hex
    default 0x10000 if BT_ENABLED
    default 0

endmenu