| # Kconfig - Bluetooth ATT/GATT configuration options |
| |
| # |
| # Copyright (c) 2019 Intel Corporation |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| |
| menu "ATT and GATT Options" |
| |
| config BT_ATT_ENFORCE_FLOW |
| bool "Enforce strict flow control semantics for incoming PDUs" |
| default y if !(BOARD_QEMU_CORTEX_M3 || BOARD_QEMU_X86 || ARCH_POSIX) |
| help |
| Enforce flow control rules on incoming PDUs, preventing a peer |
| from sending new requests until a previous one has been responded |
| or sending a new indication until a previous one has been |
| confirmed. This may need to be disabled to avoid potential race |
| conditions arising from a USB based HCI transport that splits |
| HCI events and ACL data to separate endpoints. |
| |
| config BT_ATT_PREPARE_COUNT |
| int "Number of ATT prepare write buffers" |
| default 0 |
| range 0 64 |
| help |
| Number of buffers available for ATT prepare write, setting |
| this to 0 disables GATT long/reliable writes. |
| |
| config BT_ATT_TX_MAX |
| int "Maximum number of queued outgoing ATT PDUs" |
| default 2 |
| range 1 BT_L2CAP_TX_BUF_COUNT |
| help |
| Number of ATT PDUs that can be at a single moment queued for |
| transmission. If the application tries to send more than this |
| amount the calls will block until an existing queued PDU gets |
| sent. |
| |
| config BT_GATT_SERVICE_CHANGED |
| bool "GATT Service Changed support" |
| default y |
| help |
| This option enables support for the service changed characteristic. |
| |
| config BT_GATT_DYNAMIC_DB |
| bool "GATT dynamic database support" |
| default n |
| depends on BT_GATT_SERVICE_CHANGED |
| help |
| This option enables registering/unregistering services at runtime. |
| |
| config BT_GATT_CACHING |
| bool "GATT Caching support" |
| default y |
| depends on BT_GATT_SERVICE_CHANGED |
| select TINYCRYPT |
| select TINYCRYPT_AES |
| select TINYCRYPT_AES_CMAC |
| help |
| This option enables support for GATT Caching. When enabled the stack |
| will register Client Supported Features and Database Hash |
| characteristics which can be used by clients to detect if anything has |
| changed on the GATT database. |
| |
| config BT_GATT_ENFORCE_CHANGE_UNAWARE |
| bool "GATT Enforce change-unaware state" |
| depends on BT_GATT_CACHING |
| help |
| When enable this option blocks notification and indications to client |
| to conform to the following statement from the Bluetooth 5.1 |
| specification: |
| '...the server shall not send notifications and indications to such |
| a client until it becomes change-aware." |
| In case the service cannot deal with sudden errors (-EAGAIN) then it |
| shall not use this option. |
| |
| config BT_GATT_CLIENT |
| bool "GATT client support" |
| help |
| This option enables support for the GATT Client role. |
| |
| config BT_GATT_READ_MULTIPLE |
| bool "GATT Read Multiple Characteristic Values support" |
| default y |
| help |
| This option enables support for the GATT Read Multiple Characteristic |
| Values procedure. |
| |
| config BT_GAP_PERIPHERAL_PREF_PARAMS |
| bool "Configure peripheral preferred connection parameters" |
| default y |
| depends on BT_PERIPHERAL |
| help |
| This allows to configure peripheral preferred connection parameters. |
| Enabling this option results in adding PPCP characteristic in GAP |
| and sending request for connection parameters update after GAP |
| recommended 5 seconds of connection as peripheral. If disabled it is |
| up to application to set expected connection parameters. |
| |
| if BT_GAP_PERIPHERAL_PREF_PARAMS |
| config BT_PERIPHERAL_PREF_MIN_INT |
| int "Peripheral preferred minimum connection interval in 1.25ms units" |
| default 24 |
| range 6 65535 |
| help |
| Range 3200 to 65534 is invalid. 65535 represents no specific value. |
| |
| config BT_PERIPHERAL_PREF_MAX_INT |
| int "Peripheral preferred maximum connection interval in 1.25ms units" |
| default 40 |
| range 6 65535 |
| help |
| Range 3200 to 65534 is invalid. 65535 represents no specific value. |
| |
| config BT_PERIPHERAL_PREF_SLAVE_LATENCY |
| int "Peripheral preferred slave latency in Connection Intervals" |
| default 0 |
| range 0 499 |
| |
| config BT_PERIPHERAL_PREF_TIMEOUT |
| int "Peripheral preferred supervision timeout in 10ms units" |
| default 42 |
| range 10 65535 |
| help |
| It is up to user to provide valid timeout which pass required minimum |
| value: in milliseconds it shall be larger than |
| "(1+ Conn_Latency) * Conn_Interval_Max * 2" |
| where Conn_Interval_Max is given in milliseconds. |
| Range 3200 to 65534 is invalid. 65535 represents no specific value. |
| endif # BT_GAP_PERIPHERAL_PREF_PARAMS |
| |
| config BT_DEVICE_NAME_GATT_WRITABLE |
| bool "Allow to write name by remote GATT clients" |
| depends on BT_DEVICE_NAME_DYNAMIC |
| default y |
| help |
| Enabling this option allows remote GATT clients to write to device |
| name GAP characteristic. |
| |
| if BT_DEBUG |
| |
| config BT_DEBUG_ATT |
| bool "Bluetooth Attribute Protocol (ATT) debug" |
| help |
| This option enables debug support for the Bluetooth |
| Attribute Protocol (ATT). |
| |
| config BT_DEBUG_GATT |
| bool "Bluetooth Generic Attribute Profile (GATT) debug" |
| help |
| This option enables debug support for the Bluetooth |
| Generic Attribute Profile (GATT). |
| |
| endif # BT_DEBUG |
| |
| endmenu |
