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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Bluetooth subsystem configuration
4#
5
6menuconfig 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
46config 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
56source "net/bluetooth/rfcomm/Kconfig"
57
58source "net/bluetooth/bnep/Kconfig"
59
60source "net/bluetooth/cmtp/Kconfig"
61
62source "net/bluetooth/hidp/Kconfig"
63
64config 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
72config 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
80config BT_6LOWPAN
81	tristate "Bluetooth 6LoWPAN support"
82	depends on BT_LE && 6LOWPAN
83	help
84	  IPv6 compression over Bluetooth Low Energy.
85
86config 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
95config 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
102config 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
110config 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
123config 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
130config 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
137config 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
144source "drivers/bluetooth/Kconfig"
145