| # |
| # For a description of the syntax of this configuration file, |
| # see the file kconfig-language.txt in the NuttX tools repository. |
| # |
| |
| menu "Bluetooth socket support" |
| |
| config NET_BLUETOOTH |
| bool "Bluetooth socket support" |
| default n |
| depends on WIRELESS_BLUETOOTH |
| select NETDEV_IOCTL |
| ---help--- |
| Enable support for raw, Bluetooth sockets. |
| |
| Raw sockets allow receiving and transmitting Bluetooth radio |
| frames without a layer2 protocol such as 6LoWPAN in between. Frames |
| received are copied into a Bluetooth socket tap before they |
| enter the network. Frames written into a Bluetooth socket will |
| bypass the network altogether and will be sent directly to the |
| Bluetooth MAC network interface driver outgoing frame queue. |
| |
| if NET_BLUETOOTH |
| |
| config NET_BLUETOOTH_PREALLOC_CONNS |
| int "Preallocated Bluetooth sockets" |
| default 4 |
| ---help--- |
| Number of Bluetooth connections (all tasks). |
| |
| This number of connections will be pre-allocated during system boot. |
| If dynamic connections allocation is enabled, more connections may |
| be allocated at a later time, as the system needs them. Else this |
| will be the maximum number of connections available to the system |
| at all times. |
| |
| Set to 0 to disable (and rely only on dynamic allocations). |
| |
| config NET_BLUETOOTH_ALLOC_CONNS |
| int "Dynamic Bluetooth connections allocation" |
| default 0 |
| ---help--- |
| Dynamic memory allocations for Bluetooth. |
| |
| When set to 0 all dynamic allocations are disabled. |
| |
| When set to 1 a new connection will be allocated every time, |
| and it will be free'd when no longer needed. |
| |
| Setting this to 2 or more will allocate the connections in |
| batches (with batch size equal to this config). When a |
| connection is no longer needed, it will be returned to the |
| free connections pool, and it will never be deallocated! |
| |
| config NET_BLUETOOTH_MAX_CONNS |
| int "Maximum number of Bluetooth connections" |
| default 0 |
| depends on NET_BLUETOOTH_ALLOC_CONNS > 0 |
| ---help--- |
| If dynamic connections allocation is selected (NET_BLUETOOTH_ALLOC_CONNS > 0) |
| this will limit the number of connections that can be allocated. |
| |
| This is useful in case the system is under very heavy load (or |
| under attack), ensuring that the heap will not be exhausted. |
| |
| config NET_BLUETOOTH_NCONTAINERS |
| int "Number of pre-allocated frame containers" |
| default 8 |
| ---help--- |
| This specifies the total number of preallocated frame containers. |
| One must be allocated with each incoming frame. |
| |
| config NET_BLUETOOTH_BACKLOG |
| int "Maximum frame backlog" |
| default 8 |
| range 0 255 |
| ---help--- |
| As frames are received, they are held in an RX queue. They remain |
| in the RX queue until application logic reads the queue frames. To |
| prevent overrun, the maximum backlog may be set to a nonzero value. |
| When the backlog of queue frames reaches that count, the old frame |
| will be freed, preventing overrun at the cost of losing the oldest |
| frames. |
| |
| NOTE: The special value of zero will disable all backlog checks. |
| |
| endif # NET_BLUETOOTH |
| endmenu # Bluetooth Socket Support |