esp-idf/components/bt/host/nimble/Kconfig.in

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choice BT_NIMBLE_MEM_ALLOC_MODE
prompt "Memory allocation strategy"
default BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
help
Allocation strategy for NimBLE host stack, essentially provides ability to
allocate all required dynamic allocations from,
- Internal DRAM memory only
- External SPIRAM memory only
- Either internal or external memory based on default malloc()
behavior in ESP-IDF
- Internal IRAM memory wherever applicable else internal DRAM
config BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
bool "Internal memory"
config BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
bool "External SPIRAM"
depends on SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC
config BT_NIMBLE_MEM_ALLOC_MODE_DEFAULT
bool "Default alloc mode"
config BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
bool "Internal IRAM"
depends on ESP32_IRAM_AS_8BIT_ACCESSIBLE_MEMORY
help
Allows to use IRAM memory region as 8bit accessible region.
Every unaligned (8bit or 16bit) access will result in an exception
and incur penalty of certain clock cycles per unaligned read/write.
endchoice #BT_NIMBLE_MEM_ALLOC_MODE
choice BT_NIMBLE_LOG_LEVEL
prompt "NimBLE Host log verbosity"
depends on BT_NIMBLE_ENABLED
default BT_NIMBLE_LOG_LEVEL_INFO
help
Select NimBLE log level. Please make a note that the selected NimBLE log
verbosity can not exceed the level set in "Component config --> Log output
--> Default log verbosity".
config BT_NIMBLE_LOG_LEVEL_NONE
bool "No logs"
config BT_NIMBLE_LOG_LEVEL_ERROR
bool "Error logs"
config BT_NIMBLE_LOG_LEVEL_WARNING
bool "Warning logs"
config BT_NIMBLE_LOG_LEVEL_INFO
bool "Info logs"
config BT_NIMBLE_LOG_LEVEL_DEBUG
bool "Debug logs"
endchoice #BT_NIMBLE_LOG_LEVEL
config BT_NIMBLE_LOG_LEVEL
int
default 0 if BT_NIMBLE_LOG_LEVEL_DEBUG
default 1 if BT_NIMBLE_LOG_LEVEL_INFO
default 2 if BT_NIMBLE_LOG_LEVEL_WARNING
default 3 if BT_NIMBLE_LOG_LEVEL_ERROR
default 4 if BT_NIMBLE_LOG_LEVEL_NONE
config BT_NIMBLE_MAX_CONNECTIONS
int "Maximum number of concurrent connections"
range 1 8 if (IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2)
range 1 2 if IDF_TARGET_ESP32C2
range 1 9 if IDF_TARGET_ESP32
default 3 if (IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2)
default 2 if IDF_TARGET_ESP32C2
depends on BT_NIMBLE_ENABLED
help
Defines maximum number of concurrent BLE connections. For ESP32, user
is expected to configure BTDM_CTRL_BLE_MAX_CONN from controller menu
along with this option. Similarly for ESP32-C3 or ESP32-S3, user is expected to
configure BT_CTRL_BLE_MAX_ACT from controller menu.
config BT_NIMBLE_MAX_BONDS
int "Maximum number of bonds to save across reboots"
default 3
depends on BT_NIMBLE_ENABLED
help
Defines maximum number of bonds to save for peer security and our security
config BT_NIMBLE_MAX_CCCDS
int "Maximum number of CCC descriptors to save across reboots"
default 8
depends on BT_NIMBLE_ENABLED
help
Defines maximum number of CCC descriptors to save
config BT_NIMBLE_L2CAP_COC_MAX_NUM
int "Maximum number of connection oriented channels"
range 0 9
depends on BT_NIMBLE_ENABLED
default 0
help
Defines maximum number of BLE Connection Oriented Channels. When set to (0), BLE COC is not compiled in
choice BT_NIMBLE_PINNED_TO_CORE_CHOICE
prompt "The CPU core on which NimBLE host will run"
depends on BT_NIMBLE_ENABLED && !FREERTOS_UNICORE
help
The CPU core on which NimBLE host will run. You can choose Core 0 or Core 1.
Cannot specify no-affinity
config BT_NIMBLE_PINNED_TO_CORE_0
bool "Core 0 (PRO CPU)"
config BT_NIMBLE_PINNED_TO_CORE_1
bool "Core 1 (APP CPU)"
depends on !FREERTOS_UNICORE
endchoice
config BT_NIMBLE_PINNED_TO_CORE
int
depends on BT_NIMBLE_ENABLED
default 0 if BT_NIMBLE_PINNED_TO_CORE_0
default 1 if BT_NIMBLE_PINNED_TO_CORE_1
default 0
config BT_NIMBLE_HOST_TASK_STACK_SIZE
int "NimBLE Host task stack size"
depends on BT_NIMBLE_ENABLED
default 5120 if BLE_MESH
default 4096
help
This configures stack size of NimBLE host task
config BT_NIMBLE_ROLE_CENTRAL
bool "Enable BLE Central role"
depends on BT_NIMBLE_ENABLED
default y
help
Enables central role
config BT_NIMBLE_ROLE_PERIPHERAL
bool "Enable BLE Peripheral role"
depends on BT_NIMBLE_ENABLED
default y
help
Enable peripheral role
config BT_NIMBLE_ROLE_BROADCASTER
bool "Enable BLE Broadcaster role"
depends on BT_NIMBLE_ENABLED
default y
help
Enables broadcaster role
config BT_NIMBLE_ROLE_OBSERVER
bool "Enable BLE Observer role"
depends on BT_NIMBLE_ENABLED
default y
help
Enables observer role
config BT_NIMBLE_NVS_PERSIST
bool "Persist the BLE Bonding keys in NVS"
depends on BT_NIMBLE_ENABLED
default n
help
Enable this flag to make bonding persistent across device reboots
menuconfig BT_NIMBLE_SECURITY_ENABLE
bool "Enable BLE SM feature"
depends on BT_NIMBLE_ENABLED
default y
help
Enable BLE sm feature
config BT_NIMBLE_SM_LEGACY
bool "Security manager legacy pairing"
depends on BT_NIMBLE_SECURITY_ENABLE
default y
help
Enable security manager legacy pairing
config BT_NIMBLE_SM_SC
bool "Security manager secure connections (4.2)"
depends on BT_NIMBLE_SECURITY_ENABLE
default y
help
Enable security manager secure connections
config BT_NIMBLE_SM_SC_DEBUG_KEYS
bool "Use predefined public-private key pair"
default n
depends on BT_NIMBLE_SECURITY_ENABLE && BT_NIMBLE_SM_SC
help
If this option is enabled, SM uses predefined DH key pair as described
in Core Specification, Vol. 3, Part H, 2.3.5.6.1. This allows to
decrypt air traffic easily and thus should only be used for debugging.
config BT_NIMBLE_LL_CFG_FEAT_LE_ENCRYPTION
bool "Enable LE encryption"
depends on BT_NIMBLE_SECURITY_ENABLE && BT_NIMBLE_ENABLED
default y
help
Enable encryption connection
config BT_NIMBLE_DEBUG
bool "Enable extra runtime asserts and host debugging"
default n
depends on BT_NIMBLE_ENABLED
help
This enables extra runtime asserts and host debugging
config BT_NIMBLE_SVC_GAP_DEVICE_NAME
string "BLE GAP default device name"
depends on BT_NIMBLE_ENABLED
default "nimble"
help
The Device Name characteristic shall contain the name of the device as an UTF-8 string.
This name can be changed by using API ble_svc_gap_device_name_set()
config BT_NIMBLE_GAP_DEVICE_NAME_MAX_LEN
int "Maximum length of BLE device name in octets"
depends on BT_NIMBLE_ENABLED
default 31
help
Device Name characteristic value shall be 0 to 248 octets in length
config BT_NIMBLE_ATT_PREFERRED_MTU
int "Preferred MTU size in octets"
depends on BT_NIMBLE_ENABLED
default 256
help
This is the default value of ATT MTU indicated by the device during an ATT MTU exchange.
This value can be changed using API ble_att_set_preferred_mtu()
config BT_NIMBLE_SVC_GAP_APPEARANCE
hex "External appearance of the device"
depends on BT_NIMBLE_ENABLED
default 0
help
Standard BLE GAP Appearance value in HEX format e.g. 0x02C0
menu "Memory Settings"
config BT_NIMBLE_MSYS_1_BLOCK_COUNT
int "MSYS_1 Block Count"
default 24 if SOC_ESP_NIMBLE_CONTROLLER
default 12 if !SOC_ESP_NIMBLE_CONTROLLER
help
MSYS is a system level mbuf registry. For prepare write & prepare
responses MBUFs are allocated out of msys_1 pool. For NIMBLE_MESH
enabled cases, this block count is increased by 8 than user defined
count.
config BT_NIMBLE_MSYS_1_BLOCK_SIZE
int "MSYS_1 Block Size"
default 128 if SOC_ESP_NIMBLE_CONTROLLER
default 256 if !SOC_ESP_NIMBLE_CONTROLLER
help
Dynamic memory size of block 1
config BT_NIMBLE_MSYS_2_BLOCK_COUNT
int "MSYS_2 Block Count"
default 24
help
Dynamic memory count
config BT_NIMBLE_MSYS_2_BLOCK_SIZE
int "MSYS_2 Block Size"
default 320
help
Dynamic memory size of block 2
config BT_NIMBLE_ACL_BUF_COUNT
int "ACL Buffer count"
depends on BT_NIMBLE_ENABLED
default 24
help
The number of ACL data buffers.
config BT_NIMBLE_ACL_BUF_SIZE
int "ACL Buffer size"
depends on BT_NIMBLE_ENABLED
default 255
help
This is the maximum size of the data portion of HCI ACL data packets.
It does not include the HCI data header (of 4 bytes)
config BT_NIMBLE_HCI_EVT_BUF_SIZE
int "HCI Event Buffer size"
depends on BT_NIMBLE_ENABLED
default 257 if BT_NIMBLE_EXT_ADV
default 70
help
This is the size of each HCI event buffer in bytes. In case of
extended advertising, packets can be fragmented. 257 bytes is the
maximum size of a packet.
config BT_NIMBLE_HCI_EVT_HI_BUF_COUNT
int "High Priority HCI Event Buffer count"
depends on BT_NIMBLE_ENABLED
default 30
help
This is the high priority HCI events' buffer size. High-priority
event buffers are for everything except advertising reports. If there
are no free high-priority event buffers then host will try to allocate a
low-priority buffer instead
config BT_NIMBLE_HCI_EVT_LO_BUF_COUNT
int "Low Priority HCI Event Buffer count"
depends on BT_NIMBLE_ENABLED
default 8
help
This is the low priority HCI events' buffer size. Low-priority event
buffers are only used for advertising reports. If there are no free
low-priority event buffers, then an incoming advertising report will
get dropped
endmenu
config BT_NIMBLE_GATT_MAX_PROCS
int "Maximum number of GATT client procedures"
depends on BT_NIMBLE_ENABLED
default 4
help
Maximum number of GATT client procedures that can be executed.
config BT_NIMBLE_HS_FLOW_CTRL
bool "Enable Host Flow control"
depends on BT_NIMBLE_ENABLED
default y if IDF_TARGET_ESP32
default n
help
Enable Host Flow control
config BT_NIMBLE_HS_FLOW_CTRL_ITVL
int "Host Flow control interval"
depends on BT_NIMBLE_HS_FLOW_CTRL
default 1000
help
Host flow control interval in msecs
config BT_NIMBLE_HS_FLOW_CTRL_THRESH
int "Host Flow control threshold"
depends on BT_NIMBLE_HS_FLOW_CTRL
default 2
help
Host flow control threshold, if the number of free buffers are at or
below this threshold, send an immediate number-of-completed-packets
event
config BT_NIMBLE_HS_FLOW_CTRL_TX_ON_DISCONNECT
bool "Host Flow control on disconnect"
depends on BT_NIMBLE_HS_FLOW_CTRL
default y
help
Enable this option to send number-of-completed-packets event to
controller after disconnection
config BT_NIMBLE_RPA_TIMEOUT
int "RPA timeout in seconds"
range 1 41400
depends on BT_NIMBLE_ENABLED
default 900
help
Time interval between RPA address change. This is applicable in case of
Host based RPA
menuconfig BT_NIMBLE_MESH
bool "Enable BLE mesh functionality"
select BT_NIMBLE_SM_SC
depends on BT_NIMBLE_ENABLED
default n
help
Enable BLE Mesh functionality
config BT_NIMBLE_MESH_PROXY
bool "Enable mesh proxy functionality"
default n
depends on BT_NIMBLE_MESH
help
Enable proxy. This is automatically set whenever NIMBLE_MESH_PB_GATT or
NIMBLE_MESH_GATT_PROXY is set
config BT_NIMBLE_MESH_PROV
bool "Enable BLE mesh provisioning"
default y
depends on BT_NIMBLE_MESH
help
Enable mesh provisioning
config BT_NIMBLE_MESH_PB_ADV
bool "Enable mesh provisioning over advertising bearer"
default y
depends on BT_NIMBLE_MESH_PROV
help
Enable this option to allow the device to be provisioned over
the advertising bearer
config BT_NIMBLE_MESH_PB_GATT
bool "Enable mesh provisioning over GATT bearer"
default y
select BT_NIMBLE_MESH_PROXY
depends on BT_NIMBLE_MESH_PROV
help
Enable this option to allow the device to be provisioned over the GATT
bearer
config BT_NIMBLE_MESH_GATT_PROXY
bool "Enable GATT Proxy functionality"
default y
select BT_NIMBLE_MESH_PROXY
depends on BT_NIMBLE_MESH
help
This option enables support for the Mesh GATT Proxy Service,
i.e. the ability to act as a proxy between a Mesh GATT Client
and a Mesh network
config BT_NIMBLE_MESH_RELAY
bool "Enable mesh relay functionality"
default n
depends on BT_NIMBLE_MESH
help
Support for acting as a Mesh Relay Node
config BT_NIMBLE_MESH_LOW_POWER
bool "Enable mesh low power mode"
default n
depends on BT_NIMBLE_MESH
help
Enable this option to be able to act as a Low Power Node
config BT_NIMBLE_MESH_FRIEND
bool "Enable mesh friend functionality"
default n
depends on BT_NIMBLE_MESH
help
Enable this option to be able to act as a Friend Node
config BT_NIMBLE_MESH_DEVICE_NAME
string "Set mesh device name"
default "nimble-mesh-node"
depends on BT_NIMBLE_MESH
help
This value defines Bluetooth Mesh device/node name
config BT_NIMBLE_MESH_NODE_COUNT
int "Set mesh node count"
default 1
depends on BT_NIMBLE_MESH
help
Defines mesh node count.
config BT_NIMBLE_MESH_PROVISIONER
bool "Enable BLE mesh provisioner"
default 0
depends on BT_NIMBLE_MESH
help
Enable mesh provisioner.
config BT_NIMBLE_CRYPTO_STACK_MBEDTLS
bool "Override TinyCrypt with mbedTLS for crypto computations"
default y
depends on BT_NIMBLE_ENABLED
select MBEDTLS_ECP_RESTARTABLE
select MBEDTLS_CMAC_C
help
Enable this option to choose mbedTLS instead of TinyCrypt for crypto
computations.
config BT_NIMBLE_HS_STOP_TIMEOUT_MS
int "BLE host stop timeout in msec"
default 2000
depends on BT_NIMBLE_ENABLED
help
BLE Host stop procedure timeout in milliseconds.
config BT_NIMBLE_HOST_BASED_PRIVACY
bool "Enable host based privacy for random address."
default n
depends on BT_NIMBLE_ENABLED && !IDF_TARGET_ESP32
help
Use this option to do host based Random Private Address resolution.
If this option is disabled then controller based privacy is used.
config BT_NIMBLE_ENABLE_CONN_REATTEMPT
bool "Enable connection reattempts on connection establishment error"
default y if (IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2 || IDF_TARGET_ESP32C2)
default n if IDF_TARGET_ESP32
help
Enable to make the NimBLE host to reattempt GAP connection on connection
establishment failure.
config BT_NIMBLE_MAX_CONN_REATTEMPT
int "Maximum number connection reattempts"
range 1 7
default 3
depends on BT_NIMBLE_ENABLED && BT_NIMBLE_ENABLE_CONN_REATTEMPT
help
Defines maximum number of connection reattempts.
menuconfig BT_NIMBLE_50_FEATURE_SUPPORT
bool "Enable BLE 5 feature"
depends on BT_NIMBLE_ENABLED
default y
help
Enable BLE 5 feature
config BT_NIMBLE_LL_CFG_FEAT_LE_2M_PHY
bool "Enable 2M Phy"
depends on BT_NIMBLE_50_FEATURE_SUPPORT
default y
help
Enable 2M-PHY
config BT_NIMBLE_LL_CFG_FEAT_LE_CODED_PHY
bool "Enable coded Phy"
depends on BT_NIMBLE_50_FEATURE_SUPPORT
default y
help
Enable coded-PHY
config BT_NIMBLE_EXT_ADV
bool "Enable extended advertising"
depends on BT_NIMBLE_50_FEATURE_SUPPORT
default n
help
Enable this option to do extended advertising. Extended advertising
will be supported from BLE 5.0 onwards.
if BT_NIMBLE_EXT_ADV
config BT_NIMBLE_MAX_EXT_ADV_INSTANCES
int "Maximum number of extended advertising instances."
range 0 4
default 1 if BT_NIMBLE_EXT_ADV
default 0
depends on BT_NIMBLE_EXT_ADV
help
Change this option to set maximum number of extended advertising
instances. Minimum there is always one instance of
advertising. Enter how many more advertising instances you
want.
config BT_NIMBLE_EXT_ADV_MAX_SIZE
int "Maximum length of the advertising data."
range 0 1650
default 1650 if BT_NIMBLE_EXT_ADV
default 0
depends on BT_NIMBLE_EXT_ADV
help
Defines the length of the extended adv data. The value should not
exceed 1650.
config BT_NIMBLE_ENABLE_PERIODIC_ADV
bool "Enable periodic advertisement."
default y
depends on BT_NIMBLE_EXT_ADV
help
Enable this option to start periodic advertisement.
config BT_NIMBLE_PERIODIC_ADV_SYNC_TRANSFER
bool "Enable Transer Sync Events"
depends on BT_NIMBLE_ENABLE_PERIODIC_ADV
default y
help
This enables controller transfer periodic sync events to host
endif
config BT_NIMBLE_MAX_PERIODIC_SYNCS
int "Maximum number of periodic advertising syncs"
depends on BT_NIMBLE_50_FEATURE_SUPPORT
range 0 8 if !IDF_TARGET_ESP32C2
range 0 3 if IDF_TARGET_ESP32C2
default 1 if BT_NIMBLE_ENABLE_PERIODIC_ADV
default 0
help
Set this option to set the upper limit for number of periodic sync
connections. This should be less than maximum connections allowed by
controller.
config BT_NIMBLE_MAX_PERIODIC_ADVERTISER_LIST
int "Maximum number of periodic advertiser list"
depends on BT_NIMBLE_50_FEATURE_SUPPORT && (IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2)
range 1 5
default 5 if BT_NIMBLE_50_FEATURE_SUPPORT
help
Set this option to set the upper limit for number of periodic advertiser list.
choice BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM
prompt "Coexistence: limit on MAX Tx/Rx time for coded-PHY connection"
default BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_DIS
depends on ESP32_WIFI_SW_COEXIST_ENABLE && BT_NIMBLE_ENABLED
help
When using PHY-Coded in BLE connection, limitation on max tx/rx time can be applied to
better avoid dramatic performance deterioration of Wi-Fi.
config BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_EN
bool "Force Enable"
help
Always enable the limitation on max tx/rx time for Coded-PHY connection
config BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_DIS
bool "Force Disable"
help
Disable the limitation on max tx/rx time for Coded-PHY connection
endchoice
config BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_EFF
int
default 0 if !(ESP32_WIFI_SW_COEXIST_ENABLE && BT_NIMBLE_ENABLED)
default 1 if BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_EN
default 0 if BT_NIMBLE_COEX_PHY_CODED_TX_RX_TLIM_DIS
config BT_NIMBLE_WHITELIST_SIZE
int "BLE white list size"
depends on BT_NIMBLE_ENABLED
range 1 15
default 12
help
BLE list size
config BT_NIMBLE_TEST_THROUGHPUT_TEST
bool "Throughput Test Mode enable"
default n
help
Enable the throughput test mode
config BT_NIMBLE_BLUFI_ENABLE
bool "Enable blufi functionality"
depends on BT_NIMBLE_ENABLED
default n
help
Set this option to enable blufi functionality.
config BT_NIMBLE_USE_ESP_TIMER
bool "Enable Esp Timer for Nimble"
default y
help
Set this option to use Esp Timer which has higher priority timer instead of FreeRTOS timer
config BT_NIMBLE_LEGACY_VHCI_ENABLE
bool
default y if (IDF_TARGET_ESP32 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3)
default n
help
This option is used to distinguish whether a previous version of VHCI is being used