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