1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # Bluetooth subsystem configuration 2 # Bluetooth subsystem configuration
4 # 3 #
5 4
6 menuconfig BT 5 menuconfig BT
7 tristate "Bluetooth subsystem support" 6 tristate "Bluetooth subsystem support"
8 depends on !S390 !! 7 depends on NET && !S390
9 depends on RFKILL || !RFKILL 8 depends on RFKILL || !RFKILL
10 select CRC16 9 select CRC16
11 select CRYPTO 10 select CRYPTO
12 select CRYPTO_SKCIPHER !! 11 select CRYPTO_BLKCIPHER
13 select CRYPTO_LIB_AES !! 12 select CRYPTO_AES
14 imply CRYPTO_AES <<
15 select CRYPTO_CMAC 13 select CRYPTO_CMAC
16 select CRYPTO_ECB 14 select CRYPTO_ECB
17 select CRYPTO_SHA256 15 select CRYPTO_SHA256
18 select CRYPTO_ECDH 16 select CRYPTO_ECDH
19 help 17 help
20 Bluetooth is low-cost, low-power, sh 18 Bluetooth is low-cost, low-power, short-range wireless technology.
21 It was designed as a replacement for 19 It was designed as a replacement for cables and other short-range
22 technologies like IrDA. Bluetooth o 20 technologies like IrDA. Bluetooth operates in personal area range
23 that typically extends up to 10 mete 21 that typically extends up to 10 meters. More information about
24 Bluetooth can be found at <https://w !! 22 Bluetooth can be found at <http://www.bluetooth.com/>.
25 23
26 Linux Bluetooth subsystem consist of 24 Linux Bluetooth subsystem consist of several layers:
27 Bluetooth Core 25 Bluetooth Core
28 HCI device and connection mana 26 HCI device and connection manager, scheduler
29 SCO audio links 27 SCO audio links
30 L2CAP (Logical Link Control an 28 L2CAP (Logical Link Control and Adaptation Protocol)
31 SMP (Security Manager Protocol 29 SMP (Security Manager Protocol) on LE (Low Energy) links
32 ISO isochronous links <<
33 HCI Device drivers (Interface to 30 HCI Device drivers (Interface to the hardware)
34 RFCOMM Module (RFCOMM Protocol) 31 RFCOMM Module (RFCOMM Protocol)
35 BNEP Module (Bluetooth Network En 32 BNEP Module (Bluetooth Network Encapsulation Protocol)
36 CMTP Module (CAPI Message Transpo 33 CMTP Module (CAPI Message Transport Protocol)
37 HIDP Module (Human Interface Devi 34 HIDP Module (Human Interface Device Protocol)
38 35
39 Say Y here to compile Bluetooth supp 36 Say Y here to compile Bluetooth support into the kernel or say M to
40 compile it as module (bluetooth). 37 compile it as module (bluetooth).
41 38
42 To use Linux Bluetooth subsystem, yo 39 To use Linux Bluetooth subsystem, you will need several user-space
43 utilities like hciconfig and bluetoo 40 utilities like hciconfig and bluetoothd. These utilities and updates
44 to Bluetooth kernel modules are prov 41 to Bluetooth kernel modules are provided in the BlueZ packages. For
45 more information, see <http://www.bl 42 more information, see <http://www.bluez.org/>.
46 43
47 config BT_BREDR 44 config BT_BREDR
48 bool "Bluetooth Classic (BR/EDR) featu 45 bool "Bluetooth Classic (BR/EDR) features"
49 depends on BT 46 depends on BT
50 default y 47 default y
51 help 48 help
52 Bluetooth Classic includes support f 49 Bluetooth Classic includes support for Basic Rate (BR)
53 available with Bluetooth version 1.0 50 available with Bluetooth version 1.0b or later and support
54 for Enhanced Data Rate (EDR) availab 51 for Enhanced Data Rate (EDR) available with Bluetooth
55 version 2.0 or later. 52 version 2.0 or later.
56 53
57 source "net/bluetooth/rfcomm/Kconfig" 54 source "net/bluetooth/rfcomm/Kconfig"
58 55
59 source "net/bluetooth/bnep/Kconfig" 56 source "net/bluetooth/bnep/Kconfig"
60 57
61 source "net/bluetooth/cmtp/Kconfig" 58 source "net/bluetooth/cmtp/Kconfig"
62 59
63 source "net/bluetooth/hidp/Kconfig" 60 source "net/bluetooth/hidp/Kconfig"
64 61
>> 62 config BT_HS
>> 63 bool "Bluetooth High Speed (HS) features"
>> 64 depends on BT_BREDR
>> 65 default y
>> 66 help
>> 67 Bluetooth High Speed includes support for off-loading
>> 68 Bluetooth connections via 802.11 (wifi) physical layer
>> 69 available with Bluetooth version 3.0 or later.
>> 70
65 config BT_LE 71 config BT_LE
66 bool "Bluetooth Low Energy (LE) featur 72 bool "Bluetooth Low Energy (LE) features"
67 depends on BT 73 depends on BT
68 default y 74 default y
69 help 75 help
70 Bluetooth Low Energy includes suppor 76 Bluetooth Low Energy includes support low-energy physical
71 layer available with Bluetooth versi 77 layer available with Bluetooth version 4.0 or later.
72 78
73 config BT_LE_L2CAP_ECRED <<
74 bool "Bluetooth L2CAP Enhanced Credit <<
75 depends on BT_LE <<
76 default y <<
77 help <<
78 Bluetooth Low Energy L2CAP Enhanced <<
79 Bluetooth version 5.2 or later. <<
80 <<
81 This can be overridden by passing bl <<
82 on the kernel commandline. <<
83 <<
84 config BT_6LOWPAN 79 config BT_6LOWPAN
85 tristate "Bluetooth 6LoWPAN support" 80 tristate "Bluetooth 6LoWPAN support"
86 depends on BT_LE && 6LOWPAN 81 depends on BT_LE && 6LOWPAN
87 help 82 help
88 IPv6 compression over Bluetooth Low 83 IPv6 compression over Bluetooth Low Energy.
89 84
90 config BT_LEDS 85 config BT_LEDS
91 bool "Enable LED triggers" 86 bool "Enable LED triggers"
92 depends on BT 87 depends on BT
93 depends on LEDS_CLASS 88 depends on LEDS_CLASS
94 select LEDS_TRIGGERS 89 select LEDS_TRIGGERS
95 help 90 help
96 This option selects a few LED trigge 91 This option selects a few LED triggers for different
97 Bluetooth events. 92 Bluetooth events.
98 93
99 config BT_MSFTEXT <<
100 bool "Enable Microsoft extensions" <<
101 depends on BT <<
102 help <<
103 This options enables support for the <<
104 vendor extensions. <<
105 <<
106 config BT_AOSPEXT <<
107 bool "Enable Android Open Source Proje <<
108 depends on BT <<
109 help <<
110 This options enables support for the <<
111 Project defined HCI vendor extension <<
112 <<
113 config BT_DEBUGFS <<
114 bool "Export Bluetooth internals in de <<
115 depends on BT && DEBUG_FS <<
116 default y <<
117 help <<
118 Provide extensive information about <<
119 in debugfs. <<
120 <<
121 config BT_SELFTEST 94 config BT_SELFTEST
122 bool "Bluetooth self testing support" 95 bool "Bluetooth self testing support"
123 depends on BT && DEBUG_KERNEL 96 depends on BT && DEBUG_KERNEL
124 help 97 help
125 Run self tests when initializing the 98 Run self tests when initializing the Bluetooth subsystem. This
126 is a developer option and can cause 99 is a developer option and can cause significant delay when booting
127 the system. 100 the system.
128 101
129 When the Bluetooth subsystem is buil 102 When the Bluetooth subsystem is built as module, then the test
130 cases are run first thing at module 103 cases are run first thing at module load time. When the Bluetooth
131 subsystem is compiled into the kerne 104 subsystem is compiled into the kernel image, then the test cases
132 are run late in the initcall hierarc 105 are run late in the initcall hierarchy.
133 106
134 config BT_SELFTEST_ECDH 107 config BT_SELFTEST_ECDH
135 bool "ECDH test cases" 108 bool "ECDH test cases"
136 depends on BT_LE && BT_SELFTEST 109 depends on BT_LE && BT_SELFTEST
137 help 110 help
138 Run test cases for ECDH cryptographi 111 Run test cases for ECDH cryptographic functionality used by the
139 Bluetooth Low Energy Secure Connecti 112 Bluetooth Low Energy Secure Connections feature.
140 113
141 config BT_SELFTEST_SMP 114 config BT_SELFTEST_SMP
142 bool "SMP test cases" 115 bool "SMP test cases"
143 depends on BT_LE && BT_SELFTEST 116 depends on BT_LE && BT_SELFTEST
144 help 117 help
145 Run test cases for SMP cryptographic 118 Run test cases for SMP cryptographic functionality, including both
146 legacy SMP as well as the Secure Con 119 legacy SMP as well as the Secure Connections features.
147 120
148 config BT_FEATURE_DEBUG !! 121 config BT_DEBUGFS
149 bool "Enable runtime option for debugg !! 122 bool "Export Bluetooth internals in debugfs"
150 depends on BT && !DYNAMIC_DEBUG !! 123 depends on BT && DEBUG_FS
>> 124 default y
151 help 125 help
152 This provides an option to enable/di !! 126 Provide extensive information about internal Bluetooth states
153 at runtime via the experimental feat !! 127 in debugfs.
154 128
155 source "drivers/bluetooth/Kconfig" 129 source "drivers/bluetooth/Kconfig"
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