蓝牙技术规范

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最新推荐文章于 2024-10-20 10:17:22 发布

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分类专栏：蓝牙bt linux

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蓝牙技术规范和工具

    ====================================================================================
   蓝牙协议栈学习笔记（序）
       https://blog.youkuaiyun.com/ylangeia/article/details/87100460

   蓝牙Profile的概念和常见种类
       https://blog.youkuaiyun.com/sam0535/article/details/82967766

   蓝牙BLE: GATT Profile 简介(GATT 与 GAP)
       https://blog.youkuaiyun.com/weixin_30501857/article/details/101869241?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.compare&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.compare

   蓝牙SDP协议概述
       https://www.cnblogs.com/libs-liu/p/9498952.html
====================================================================================

l2cap gatt

bluez源码编译:

bluez-5.52$ ./configure --prefix=/tmp/bluez5 --enable-deprecated --enable-android --enable-mesh --enable-testing --enable-health --enable-btpclient

wireshark过滤:

    bthci_evt.bd_addr==22:79:30:f7:1c:dc
btmgmt:
   le on
   discov yes
   add-adv / rm-adv 1-5
   advinfo
hcitool:
   scan
   lescan
   ...
hciconfig:
   piscan
   leadv

命令:

brcm_patchram_plus - 初始化BT芯片

hci*:
   hciattach - HCI UART driver initialization utility
   hciconfig - HCI device configuration utility
       piscan
       leadv
   hcitool - HCI Tool ver 5.xx
   hcidump - HCI sniffer - Bluetooth packet analyzer ver 5.xx

bt*:
   btmon - Bluetooth monitor
   btattach - Bluetooth serial utility
       Usage:
           btattach [options]
       options:
           -B, --bredr <device>   Attach Primary controller
           -A, --amp <device>     Attach AMP controller
           -P, --protocol <proto> Specify protocol type
           -S, --speed <baudrate> Specify which baudrate to use
           -N, --noflowctl        Disable flow control
           -h, --help             Show help options
   btmgmt - 蓝牙控制器管理工具
       le on
       discov yes
       add-adv / rm-adv 1-5
       advinfo
blue*:
   bluemoon - Bluemoon configuration utility
   bluetoothctl - 搜索、连接、配对、读写、使能notify蓝牙低功耗设备
   bluetoothd - 蓝牙核心服务   /usr/libexec/bluetooth/bluetoothd --compat -f /app/etc/bluetooth/main.conf &
   bluetooth-sendto   -
   bluetooth-wizard   -

hci

=========================================================================
hci command : ogf(6b) ocf(10b) len

p1:
00000001 00000011 00001100 00000000
   00000001 : 0x01 -> command

   0000110000000011 : 000011(ogf=0x03) , 0000000011(ocf=0x03)

   00000000 : len=0

00000100 00001110 00000100 00000001 00000011 00001100 00000000
   00000100 : 0x04 -> event

   00001110 : 0xE0 -> event code

   00000100 : 0x04 -> parameter total length(以Byte为单位)
   根据Core手册查询:
   code=0xE0 Command Complete event
       Num_HCI_Command_Packets : 00000001
       Command_Opcode :   0000110000000011 = 000011(ogf=0x03) , 0000000011(ocf=0x03)
       Return_Parameter(s): : 00000000
p2:
00000001 00000101 00010000 00000000
   00000001 : 0x01 -> command

   0001000000000101 : 000100(ogf=0x04) , 0000000101(ocf=0x05)

   00000000 : len=0

=========================================================================
                   LINK CONTROL COMMANDS(ogf=0x01)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.1
   1. Inquire
       hcitool inq
       hcitool cmd 0x01 0x0001 0x33 0x8b 0x9e 0x08 0x00
           < HCI Command: Inq.. (0x01|0x0001) plen 5 #1 [hci0] 2020-06-03 13:58:44.880247
                   Access code: 0x9e8b33 (General Inquiry)
                   Length: 10.24s (0x08)
                   Num responses: 0
           > HCI Event: Command Status (0x0f) plen 4 #2 [hci0] 2020-06-03 13:58:44.882925
                  Inquiry (0x01|0x0001) ncmd 1
                   Status: Success (0x00)

   2. Inquiry Cancel
       hcitool cmd 0x01 0x0002
           < HCI Command: I.. (0x01|0x0002) plen 0 #465 [hci0] 2020-06-03 14:12:51.074086
           > HCI Event: Command Co.. (0x0e) plen 4 #466 [hci0] 2020-06-03 14:12:51.077576
                  Inquiry Cancel (0x01|0x0002) ncmd 1
                   Status: Success (0x00)

   3. Start/Exit periodic inquiry
       hcitool spinq
       hcitool cmd 0x01 0x0003 0x10 0x0a 0x33 0x8b 0x9e 0x08 0x00
           < HCI Command: P.. (0x01|0x0003) plen 9 #266 [hci0] 2020-06-03 14:10:02.459051
                   Max period: 20.48s (0x10)
                   Min period: 12.80s (0x0a)
                   Access code: 0x9e8b33 (General Inquiry)
                   Length: 10.24s (0x08)
                   Num responses: 0
               hcitool epinq
       hcitool cmd 0x01 0x0004
           < HCI Command: E.. (0x01|0x0004) plen 0 #516 [hci0] 2020-06-03 14:15:41.174729
           > HCI Event: Command Co.. (0x0e) plen 4 #517 [hci0] 2020-06-03 14:15:41.178144
                  Exit Periodic Inquiry Mode (0x01|0x0004) ncmd 1
                   Status: Success (0x00)

   4. Connection
       hcitool cc/dc 01:02:03:04:05:06
       hcitool cmd 0x01 0x0005 0x06 0x05 0x04 0x03 0x02 0x01 0x18 0xcc 0x02 0x00 0x00 0x00 0x01
       hcitool cmd 0x01 0x0006 0x00 0x12(handle) 0x13(reason)
       hcitool cmd 0x01 0x0008 0x06 0x05 0x04 0x03 0x02 0x01   (Create Connection Cancel Command)
       hcitool cmd 0x01 0x0009 0x06 0x05 0x04 0x03 0x02 0x01 0x00/0x01(master/slave)    (Accept Connection Request Command)
       hcitool cmd 0x01 0x000A 0x06 0x05 0x04 0x03 0x02 0x01 0x0D-0x0F(reason)    (Reject Connection Request Command)
           < HCI Command: Cr.. (0x01|0x0005) plen 13 #1 [hci0] 2020-06-03 14:18:39.243445
                   Address: 01:02:03:04:05:06 (OUI 01-02-03)
                   Packet type: 0xcc18
                      DM1 may be used
                      DH1 may be used
                      DM3 may be used
                      DH3 may be used
                      DM5 may be used
                      DH5 may be used
                   Page scan repetition mode: R2 (0x02)
                   Page scan mode: Mandatory (0x00)
                   Clock offset: 0x0000
                   Role switch: Allow slave (0x01)
           > HCI Event: Command Status (0x0f) plen 4 #2 [hci0] 2020-06-03 14:18:39.247349
                  Create Connection (0x01|0x0005) ncmd 1
                   Status: Success (0x00)
           > HCI Event: Connect Com.. (0x03) plen 11 #5 [hci0] 2020-06-03 14:18:44.371686
                   Status: Page Timeout (0x04)
                   Handle: 12
                   Address: 01:02:03:04:05:06 (OUI 01-02-03)
                   Link type: ACL (0x01)
                   Encryption: Disabled (0x00)
           @ Connect Failed: 01:02:03:04:05:06 (0) status 0x04

   5. Features(connected remote devices)
       Read Remote Supported Features Command
           hcitool cmd 0x01 0x001B 0x00 0x12(handle)
           hcitool info 01:02:03:04:05:06
           hcitool scan
       Read Remote Extended Features Command
           hcitool cmd 0x01 0x001C 0x00 0x12(handle) 0x00-0xFF(page number)
           hcitool info 01:02:03:04:05:06
       Read Remote Version Information Command
           hcitool cmd 0x01 0x001D 0x00 0x12(handle)
           hcitool scan
           hcitool info 01:02:03:04:05:06
           hcitool leinfo 01:02:03:04:05:06
   6. Read LMP Handle Command
       hcitool cmd 0x01 0x0020 0x00 0x12(handle)
       hcisecfilter


=========================================================================
                   LINK POLICY COMMANDS(ogf=0x02)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.2
   1. Switch Role Command
       hcitool cmd 0x02 0x000B 0x06 0x05 0x04 0x03 0x02 0x01 0x00/0x01(master/slave)
       hcitool sr 01:02:03:04:05:06 0/1
   2. Read Link Policy Settings Command
       hcitool cmd 0x02 0x000C 0x00 0x12(handle)
       hcitool lp 01:02:03:04:05:06
   3. Write Link Policy Settings Command
       hcitool cmd 0x02 0x000D 0x00 0x12(handle) 0x0000/0x0001/0x0002/0x0004
       hcitool lp 01:02:03:04:05:06 NONE/RSWITCH/HOLD/SNIFF/PARK(0x0008)

=========================================================================
                   CONTROLLER & BASEBAND COMMANDS(ogf=0x03)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.3

=========================================================================
                   INFORMATIONAL PARAMETERS(ogf=0x04)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.4

=========================================================================
                   STATUS PARAMETERS(ogf=0x05)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.5

=========================================================================
                   TESTING COMMANDS(ogf=0x06)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.6

=========================================================================
                   EVENTS(ogf=0x07)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.7

=========================================================================
                   LE CONTROLLER COMMANDS(ogf=0x08)
=========================================================================
   参考Core5.0 Vol2-PartE-7-7.8