net/bluetooth/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Bluetooth subsystem configuration
   4 #
   5
   6 menuconfig BT
   7         tristate "Bluetooth subsystem support"
   8         depends on NET && !S390
   9         depends on RFKILL || !RFKILL
  10         select CRC16
  11         select CRYPTO
  12         select CRYPTO_SKCIPHER
  13         select CRYPTO_LIB_AES
  14         imply CRYPTO_AES
  15         select CRYPTO_CMAC
  16         select CRYPTO_ECB
  17         select CRYPTO_SHA256
  18         select CRYPTO_ECDH
  19         help
  20           Bluetooth is low-cost, low-power, short-range wireless technology.
  21           It was designed as a replacement for cables and other short-range
  22           technologies like IrDA.  Bluetooth operates in personal area range
  23           that typically extends up to 10 meters.  More information about
  24           Bluetooth can be found at <https://www.bluetooth.com/>.
  25
  26           Linux Bluetooth subsystem consist of several layers:
  27              Bluetooth Core
  28                 HCI device and connection manager, scheduler
  29                 SCO audio links
  30                 L2CAP (Logical Link Control and Adaptation Protocol)
  31                 SMP (Security Manager Protocol) on LE (Low Energy) links
  32              HCI Device drivers (Interface to the hardware)
  33              RFCOMM Module (RFCOMM Protocol)
  34              BNEP Module (Bluetooth Network Encapsulation Protocol)
  35              CMTP Module (CAPI Message Transport Protocol)
  36              HIDP Module (Human Interface Device Protocol)
  37
  38           Say Y here to compile Bluetooth support into the kernel or say M to
  39           compile it as module (bluetooth).
  40
  41           To use Linux Bluetooth subsystem, you will need several user-space
  42           utilities like hciconfig and bluetoothd.  These utilities and updates
  43           to Bluetooth kernel modules are provided in the BlueZ packages.  For
  44           more information, see <http://www.bluez.org/>.
  45
  46 config BT_BREDR
  47         bool "Bluetooth Classic (BR/EDR) features"
  48         depends on BT
  49         default y
  50         help
  51           Bluetooth Classic includes support for Basic Rate (BR)
  52           available with Bluetooth version 1.0b or later and support
  53           for Enhanced Data Rate (EDR) available with Bluetooth
  54           version 2.0 or later.
  55
  56 source "net/bluetooth/rfcomm/Kconfig"
  57
  58 source "net/bluetooth/bnep/Kconfig"
  59
  60 source "net/bluetooth/cmtp/Kconfig"
  61
  62 source "net/bluetooth/hidp/Kconfig"
  63
  64 config BT_HS
  65         bool "Bluetooth High Speed (HS) features"
  66         depends on BT_BREDR
  67         help
  68           Bluetooth High Speed includes support for off-loading
  69           Bluetooth connections via 802.11 (wifi) physical layer
  70           available with Bluetooth version 3.0 or later.
  71
  72 config BT_LE
  73         bool "Bluetooth Low Energy (LE) features"
  74         depends on BT
  75         default y
  76         help
  77           Bluetooth Low Energy includes support low-energy physical
  78           layer available with Bluetooth version 4.0 or later.
  79
  80 config BT_6LOWPAN
  81         tristate "Bluetooth 6LoWPAN support"
  82         depends on BT_LE && 6LOWPAN
  83         help
  84           IPv6 compression over Bluetooth Low Energy.
  85
  86 config BT_LEDS
  87         bool "Enable LED triggers"
  88         depends on BT
  89         depends on LEDS_CLASS
  90         select LEDS_TRIGGERS
  91         help
  92           This option selects a few LED triggers for different
  93           Bluetooth events.
  94
  95 config BT_MSFTEXT
  96         bool "Enable Microsoft extensions"
  97         depends on BT
  98         help
  99           This options enables support for the Microsoft defined HCI
 100           vendor extensions.
 101
 102 config BT_DEBUGFS
 103         bool "Export Bluetooth internals in debugfs"
 104         depends on BT && DEBUG_FS
 105         default y
 106         help
 107           Provide extensive information about internal Bluetooth states
 108           in debugfs.
 109
 110 config BT_SELFTEST
 111         bool "Bluetooth self testing support"
 112         depends on BT && DEBUG_KERNEL
 113         help
 114           Run self tests when initializing the Bluetooth subsystem.  This
 115           is a developer option and can cause significant delay when booting
 116           the system.
 117
 118           When the Bluetooth subsystem is built as module, then the test
 119           cases are run first thing at module load time.  When the Bluetooth
 120           subsystem is compiled into the kernel image, then the test cases
 121           are run late in the initcall hierarchy.
 122
 123 config BT_SELFTEST_ECDH
 124         bool "ECDH test cases"
 125         depends on BT_LE && BT_SELFTEST
 126         help
 127           Run test cases for ECDH cryptographic functionality used by the
 128           Bluetooth Low Energy Secure Connections feature.
 129
 130 config BT_SELFTEST_SMP
 131         bool "SMP test cases"
 132         depends on BT_LE && BT_SELFTEST
 133         help
 134           Run test cases for SMP cryptographic functionality, including both
 135           legacy SMP as well as the Secure Connections features.
 136
 137 config BT_FEATURE_DEBUG
 138         bool "Enable runtime option for debugging statements"
 139         depends on BT && !DYNAMIC_DEBUG
 140         help
 141           This provides an option to enable/disable debugging statements
 142           at runtime via the experimental features interface.
 143
 144 source "drivers/bluetooth/Kconfig"