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楼主 # 2021-07-28 13:02:47

xfdr0805
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注册时间: 2020-07-23
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分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

## 全志V3S上通过蓝牙播放音乐

`我使用的是RTL8723DS模块,引脚与BS是兼容的,内核使用的是5.10, Bluez使用的是5.55 终端是UART0,蓝牙串口使用的是UART2,板子是参照licheepi 自己画的`

[参考链接](https://gitee.com/yocop/drv_bt_rtl8723ds)
[BT参考链接](https://github.com/Poco-Ye/rtl8723DS-BT-uart-driver)
[WIFI参考链接](https://github.com/lwfinger/rtl8723ds)
2021-07-28_T.png
2021-07-28_B.png
1. 首先在buildroot里勾选上bluez5-utils,bluez-tools及blue-alsa
2. 在内核里勾选
        [*]UART(H4) protocol support
        [/*]Realtek Three-wireUART(H5) protocol support
    系统启动时会显示如下信息:
       

        Starting kernel ...

        [    0.000000] Booting Linux on physical CPU 0x0
        [    0.000000] Linux version 5.10.19 (xfdr@virtualbox) (arm-linux-gnueabihf-gcc (Linaro GCC 7.5-2019.12) 7.5.0, GNU ld (Linaro_Binutils-2019.12) 2.28.2.20170706) #13 SMP Fri Jul 23 12:00:59 CST 2021
        [    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
        [    0.000000] CPU: div instructions available: patching division code
        [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
        [    0.000000] OF: fdt: Machine model: Lichee Pi Zero with Dock
        [    0.000000] Memory policy: Data cache writealloc
        [    0.000000] cma: Reserved 16 MiB at 0x41c00000
        [    0.000000] Zone ranges:
        [    0.000000]   Normal   [mem 0x0000000040000000-0x0000000043ffffff]
        [    0.000000]   HighMem  empty
        [    0.000000] Movable zone start for each node
        [    0.000000] Early memory node ranges
        [    0.000000]   node   0: [mem 0x0000000040000000-0x0000000043ffffff]
        [    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x0000000043ffffff]
        [    0.000000] psci: probing for conduit method from DT.
        [    0.000000] psci: Using PSCI v0.1 Function IDs from DT
        [    0.000000] percpu: Embedded 15 pages/cpu s31052 r8192 d22196 u61440
        [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
        [    0.000000] Kernel command line: console=ttyS0,115200 panic=5 console=ttyS0 rootwait vt.global_cursor_default=0 root=/dev/mmcblk0p2 earlyprintk rw
        [    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
        [    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
        [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
        [    0.000000] Memory: 34900K/65536K available (8192K kernel code, 918K rwdata, 2244K rodata, 1024K init, 284K bss, 14252K reserved, 16384K cma-reserved, 0K highmem)
        [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
        [    0.000000] rcu: Hierarchical RCU implementation.
        [    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
        [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
        [    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
        [    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
        [    0.000000] GIC: Using split EOI/Deactivate mode
        [    0.000000] random: get_random_bytes called from start_kernel+0x328/0x4c0 with crng_init=0
        [    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
        [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
        [    0.000008] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
        [    0.000022] Switching to timer-based delay loop, resolution 41ns
        [    0.000278] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
        [    0.000593] Console: colour dummy device 80x30
        [    0.000661] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
        [    0.000684] pid_max: default: 32768 minimum: 301
        [    0.000852] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
        [    0.000873] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
        [    0.001748] CPU: Testing write buffer coherency: ok
        [    0.002186] /cpus/cpu@0 missing clock-frequency property
        [    0.002218] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
        [    0.002989] Setting up static identity map for 0x40100000 - 0x40100060
        [    0.003218] rcu: Hierarchical SRCU implementation.
        [    0.003764] smp: Bringing up secondary CPUs ...
        [    0.003792] smp: Brought up 1 node, 1 CPU
        [    0.003802] SMP: Total of 1 processors activated (48.00 BogoMIPS).
        [    0.003811] CPU: All CPU(s) started in HYP mode.
        [    0.003818] CPU: Virtualization extensions available.
        [    0.004452] devtmpfs: initialized
        [    0.008373] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
        [    0.008733] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
        [    0.008771] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
        [    0.009561] pinctrl core: initialized pinctrl subsystem
        [    0.011091] NET: Registered protocol family 16
        [    0.012326] DMA: preallocated 256 KiB pool for atomic coherent allocations
        [    0.013612] thermal_sys: Registered thermal governor 'step_wise'
        [    0.014006] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
        [    0.014032] hw-breakpoint: maximum watchpoint size is 8 bytes.
        [    0.036802] SCSI subsystem initialized
        [    0.037553] usbcore: registered new interface driver usbfs
        [    0.037622] usbcore: registered new interface driver hub
        [    0.037689] usbcore: registered new device driver usb
        [    0.037967] mc: Linux media interface: v0.10
        [    0.038015] videodev: Linux video capture interface: v2.00
        [    0.038161] pps_core: LinuxPPS API ver. 1 registered
        [    0.038174] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
        [    0.038198] PTP clock support registered
        [    0.038880] Advanced Linux Sound Architecture Driver Initialized.
        [    0.039575] Bluetooth: Core ver 2.22
        [    0.039667] NET: Registered protocol family 31
        [    0.039679] Bluetooth: HCI device and connection manager initialized
        [    0.039703] Bluetooth: HCI socket layer initialized
        [    0.039717] Bluetooth: L2CAP socket layer initialized
        [    0.039750] Bluetooth: SCO socket layer initialized
        [    0.040956] clocksource: Switched to clocksource arch_sys_counter
        [    0.052288] NET: Registered protocol family 2
        [    0.053034] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
        [    0.053084] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
        [    0.053112] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear)
        [    0.053136] TCP: Hash tables configured (established 1024 bind 1024)
        [    0.053298] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
        [    0.053357] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
        [    0.053602] NET: Registered protocol family 1
        [    0.054648] RPC: Registered named UNIX socket transport module.
        [    0.054681] RPC: Registered udp transport module.
        [    0.054690] RPC: Registered tcp transport module.
        [    0.054698] RPC: Registered tcp NFSv4.1 backchannel transport module.
        [    0.056301] Initialise system trusted keyrings
        [    0.056732] workingset: timestamp_bits=30 max_order=14 bucket_order=0
        [    0.063874] NFS: Registering the id_resolver key type
        [    0.063951] Key type id_resolver registered
        [    0.063960] Key type id_legacy registered
        [    0.064015] ntfs: driver 2.1.32 [Flags: R/W].
        [    0.163771] Key type asymmetric registered
        [    0.163804] Asymmetric key parser 'x509' registered
        [    0.163906] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
        [    0.163922] io scheduler mq-deadline registered
        [    0.163931] io scheduler kyber registered
        [    0.168836] sun8i-v3s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
        [    0.169687] sun8i-v3s-pinctrl 1c20800.pinctrl: supply vcc-pb not found, using dummy regulator
        [    0.170628] pwm-backlight backlight: supply power not found, using dummy regulator
        [    0.171287] pwm-backlight backlight: invalid default brightness level: 100, using 6
        [    0.239906] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
        [    0.244637] printk: console [ttyS0] disabled
        [    0.264964] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 45, base_baud = 1500000) is a U6_16550A
        [    0.932953] printk: console [ttyS0] enabled
        [    0.938208] sun8i-v3s-pinctrl 1c20800.pinctrl: supply vcc-pe not found, using dummy regulator
        [    0.968606] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 46, base_baud = 1500000) is a U6_16550A
        [    0.999932] 1c28800.serial: ttyS2 at MMIO 0x1c28800 (irq = 47, base_baud = 1500000) is a U6_16550A
        [    1.014962] panel-simple panel: supply power not found, using dummy regulator
        [    1.022545] panel-simple panel: Specify missing connector_type
        [    1.030391] libphy: Fixed MDIO Bus: probed
        [    1.035212] CAN device driver interface
        [    1.039657] dwmac-sun8i 1c30000.ethernet: IRQ eth_wake_irq not found
        [    1.046143] dwmac-sun8i 1c30000.ethernet: IRQ eth_lpi not found
        [    1.052210] dwmac-sun8i 1c30000.ethernet: No regulator found
        [    1.057984] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
        [    1.064221] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
        [    1.071527] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
        [    1.078747] dwmac-sun8i 1c30000.ethernet: COE Type 2
        [    1.083730] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
        [    1.090514] dwmac-sun8i 1c30000.ethernet: Normal descriptors
        [    1.096184] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
        [    1.101867] dwmac-sun8i 1c30000.ethernet: device MAC address d6:56:90:e0:09:09
        [    1.109732] libphy: stmmac: probed
        [    1.114430] dwmac-sun8i 1c30000.ethernet: Found internal PHY node
        [    1.121248] libphy: mdio_mux: probed
        [    1.124869] dwmac-sun8i 1c30000.ethernet: Switch mux to internal PHY
        [    1.131286] dwmac-sun8i 1c30000.ethernet: Powering internal PHY
        [    1.139085] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
        [    1.145759] ehci-platform: EHCI generic platform driver
        [    1.151239] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
        [    1.157465] ohci-platform: OHCI generic platform driver
        [    1.164161] input: 1c22800.lradc as /devices/platform/soc/1c22800.lradc/input/input0
        [    1.173440] rotary-encoder rotary@0: gray
        [    1.178460] input: rotary@0 as /devices/platform/rotary@0/input/input1
        [    1.187134] sun6i-rtc 1c20400.rtc: registered as rtc0
        [    1.192416] sun6i-rtc 1c20400.rtc: setting system clock to 1970-01-01T01:26:51 UTC (5211)
        [    1.200591] sun6i-rtc 1c20400.rtc: RTC enabled
        [    1.205482] i2c /dev entries driver
        [    1.210476] input: ns2009_ts as /devices/platform/soc/1c2ac00.i2c/i2c-0/0-0048/input/input2
        [    1.220426] Driver for 1-wire Dallas network protocol.
        [    1.227208] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
        [    1.235342] Bluetooth: HCI UART driver ver 2.3
        [    1.239793] Bluetooth: HCI UART protocol H4 registered
        [    1.245041] Bluetooth: HCI UART protocol Three-wire (H5) registered
        [    1.252426] sun8i-v3s-pinctrl 1c20800.pinctrl: supply vcc-pf not found, using dummy regulator
        [    1.263407] sun8i-v3s-pinctrl 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator
        [    1.274623] ledtrig-cpu: registered to indicate activity on CPUs
        [    1.281222] sun4i-ss 1c15000.crypto: Die ID 7
        [    1.288761] usbcore: registered new interface driver usbhid
        [    1.294484] usbhid: USB HID core driver
        [    1.299370] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
        [    1.306740] sunxi-mmc 1c10000.mmc: initialized, max. request size: 16384 KB
        [    1.316119] sun4i-codec 1c22c00.codec: Failed to register our card
        [    1.324501] NET: Registered protocol family 17
        [    1.328998] can: controller area network core
        [    1.333627] NET: Registered protocol family 29
        [    1.338086] can: raw protocol
        [    1.341133] can: broadcast manager protocol
        [    1.345329] can: netlink gateway - max_hops=1
        [    1.350297] Bluetooth: RFCOMM TTY layer initialized
        [    1.355353] Bluetooth: RFCOMM socket layer initialized
        [    1.360538] Bluetooth: RFCOMM ver 1.11
        [    1.364363] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
        [    1.369672] Bluetooth: BNEP filters: protocol multicast
        [    1.374928] Bluetooth: BNEP socket layer initialized
        [    1.379890] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
        [    1.385825] Bluetooth: HIDP socket layer initialized
        [    1.391148] Key type dns_resolver registered
        [    1.395595] Registering SWP/SWPB emulation handler
        [    1.400448] Loading compiled-in X.509 certificates
        [    1.437437] sun4i-drm display-engine: bound 1100000.mixer (ops 0xc097c610)
        [    1.445077] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc097891c)
        [    1.453961] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0
        [    1.465480] sunxi-mmc 1c10000.mmc: card claims to support voltages below defined range
        [    1.475874] mmc1: new high speed SDIO card at address 0001
        [    1.493616] mmc0: host does not support reading read-only switch, assuming write-enable
        [    1.495706] mmc0: new high speed SDHC card at address 0002
        [    1.496918] mmcblk0: mmc0:0002 MSD20 3.73 GiB 
        [    1.499651]  mmcblk0: p1 p2 p3
        [    1.507412] Console: switching to colour frame buffer device 100x30
        [    1.566756] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb frame buffer device
        [    1.576864] debugfs: Directory '1c22c00.codec' with parent 'V3s Audio Codec' already present!
        [    1.591054] ALSA device list:
        [    1.594055]   #0: V3s Audio Codec
        [    1.612781] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
        [    1.621158] VFS: Mounted root (ext4 filesystem) on device 179:2.
        [    1.629553] devtmpfs: mounted
        [    1.633946] Freeing unused kernel memory: 1024K
        [    1.638711] Run /sbin/init as init process
        [    1.690069] random: fast init done
        [    1.792914] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
        Starting syslogd: OK
        Starting klogd: OK
        Running sysctl: OK
        Starting mdev... OK
        [    3.206544] cfg80211: Loading compiled-in X.509 certificates for regulatory database
        [    3.248879] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
        [    3.258062] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
        [    3.266896] cfg80211: failed to load regulatory.db
        [    3.359658] 8723ds: module is from the staging directory, the quality is unknown, you have been warned.
        Initializing random number generator: OK
        Saving random seed: [    3.742299] random: dd: uninitialized urandom read (512 bytes read)
        OK
        Starting system message bus: [    3.812938] random: dbus-uuidgen: uninitialized urandom read (12 bytes read)
        [    3.820155] random: dbus-uuidgen: uninitialized urandom read (8 bytes read)
        done
        Starting bluetoothd: OK
        Starting network: OK
        [    6.200965] random: crng init done
        [    6.204396] random: 3 urandom warning(s) missed due to ratelimiting
        Starting sshd: OK
        Welcome to Buildroot for the LicheePi Zero
        licheepi-zero login: 

3. UART2默认速率是9600可以使用cat /dev/ttyS2来测试串口是否正常
4. 使用rtk_hciattach绑定uart端口
        rtk_hciattach -n -s 115200 /dev/ttyS2 rtk_h5 &
`注意这个过程需要加载固件才行,如果固件不存在、不匹配或者错误就会失败。需要把固件放到提示的位置`
5. 固件及配置文件加载完后
        Realtek Bluetooth :Init Process finished
        Realtek Bluetooth post process
        Device setup complete
`出现这个说明蓝牙模块初始化完成 此时hci0蓝牙端口已经生成,使用hciconfig工具可以查看端口及状态`
6. hciconfig -a

        hci0:   Type: Primary  Bus: UART 
            BD Address: 34:20:03:AA:A3:7E  ACL MTU: 1021:8  SCO MTU: 255:12 
            UP RUNNING PSCAN ISCAN 
            RX bytes:165747 acl:159 sco:0 events:1160 errors:0 
            TX bytes:16622 acl:158 sco:0 commands:225 errors:0 
            Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87 
            Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
            Link policy: RSWITCH HOLD SNIFF PARK 
            Link mode: SLAVE ACCEPT 
            Name: 'Sonavox-BT' 
            Class: 0x040428 
            Service Classes: Rendering 
            Device Class: Audio/Video, HiFi Audio Device 
            HCI Version: 4.1 (0x7)  Revision: 0xaa7a 
            LMP Version: 4.1 (0x7)  Subversion: 0x8cb2 
            Manufacturer: Realtek Semiconductor Corporation (93) 

7. bluealsa -p a2dp-sink &
    `建立bluez与alsa之前的桥梁,否则无法播放音频,只能连接上`
8. bluetoothd启动需要加载一些配置文件在/etc/bluetooth/main.conf 不加载也可以

        
        #Default adaper name
        #Defaults to 'BlueZ X.YZ'
        Name = Sonavox-BT

        #Default device class. Only the major and minor device class bits are
        #considered. Defaults to '0x000000'.
        Class = 0x000428

        #How long to stay in discoverable mode before going back to non-discoverable
        #The value is in seconds. Default is 180, i.e. 3 minutes.
        #0 = disable timer, i.e. stay discoverable forever
        DiscoverableTimeout = 0

        #How long to stay in pairable mode before going back to non-discoverable
        #The value is in seconds. Default is 0.
        #0 = disable timer, i.e. stay pairable forever
        PairableTimeout = 0

        #Automatic connection for bonded devices driven by platform/user events.
        #If a platform plugin uses this mechanism, automatic connections will be
        #enabled during the interval defined below. Initially, this feature
        #intends to be used to establish connections to ATT channels. Default is 60.
        AutoConnectTimeout = 60

9. 使用蓝牙界的瑞士军刀bluetoothctl来调试蓝牙
10. 下面是可用的命令
     

  Available commands:
        -------------------
        advertise                                         Advertise Options Submenu
        scan                                              Scan Options Submenu
        gatt                                              Generic Attribute Submenu
        list                                              List available controllers
        show [ctrl]                                       Controller information
        select <ctrl>                                     Select default controller
        devices                                           List available devices
        paired-devices                                    List paired devices
        system-alias <name>                               Set controller alias
        reset-alias                                       Reset controller alias
        power <on/off>                                    Set controller power
        pairable <on/off>                                 Set controller pairable mode
        discoverable <on/off>                             Set controller discoverable mode
        discoverable-timeout [value]                      Set discoverable timeout
        agent <on/off/capability>                         Enable/disable agent with given capability
        default-agent                                     Set agent as the default one
        advertise <on/off/type>                           Enable/disable advertising with given type
        set-alias <alias>                                 Set device alias
        scan <on/off>                                     Scan for devices
        info [dev]                                        Device information
        pair [dev]                                        Pair with device
        cancel-pairing [dev]                              Cancel pairing with device
        trust [dev]                                       Trust device
        untrust [dev]                                     Untrust device
        block [dev]                                       Block device
        unblock [dev]                                     Unblock device
        remove <dev>                                      Remove device
        connect <dev>                                     Connect device
        disconnect [dev]                                  Disconnect device
        menu <name>                                       Select submenu
        version                                           Display version
        quit                                              Quit program
        exit                                              Quit program
        help                                              Display help about this program
        export                                            Print environment variables

11. 操作记录如下: trust dev 之后,再连接就不再提示密码了,直接连接上

        [bluetooth]# discoverable on
        Changing discoverable on succeeded
        [bluetooth]# pairable on
        Changing pairable on succeeded
        [CHG] Device D8:8F:76:51:A7:87 Connected: yes
        Request confirmation
        [agent] Confirm passkey 151930 (yes/no): yes
        Authorize service
        [agent] Authorize service 0000110d-0000-1000-8000-00805f9b34fb (yes/no):
        [CHG] Device D8:8F:76:51:A7:87 ServicesResolved: yes
        [agent] Authorize service 0000110d-0000-1000-8000-00805f9b34fb (yes/no): yes
        Authorize service
        [agent] Authorize service 0000110e-0000-1000-8000-00805f9b34fb (yes/no): yes
        [ 2681.328397] input: iPhone (AVRCP) as /devices/virtual/input/#input5
        [iPhone]# list
        Controller 34:20:03:AA:A3:7E Sonavox-BT [default]
        [iPhone]# devices
        Device D8:8F:76:51:A7:87 iPhone
        [iPhone]# info
        Device D8:8F:76:51:A7:87 (public)
                Name: iPhone
                Alias: iPhone
                Class: 0x007a020c
                Icon: phone
                Paired: yes
                Trusted: no
                Blocked: no
                Connected: yes
                LegacyPairing: no
                UUID: Vendor specific           (00000000-deca-fade-deca-deafdecacafe)
                UUID: Service Discovery Serve.. (00001000-0000-1000-8000-00805f9b34fb)
                UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
                UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
                UUID: Advanced Audio Distribu.. (0000110d-0000-1000-8000-00805f9b34fb)
                UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
                UUID: NAP                       (00001116-0000-1000-8000-00805f9b34fb)
                UUID: Handsfree Audio Gateway   (0000111f-0000-1000-8000-00805f9b34fb)
                UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
                UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
                UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
                UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
                UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
                UUID: Current Time Service      (00001805-0000-1000-8000-00805f9b34fb)
                UUID: Device Information        (0000180a-0000-1000-8000-00805f9b34fb)
                UUID: Battery Service           (0000180f-0000-1000-8000-00805f9b34fb)
                UUID: Vendor specific           (02030302-1d19-415f-86f2-22a2106a0a77)
                UUID: Vendor specific           (7905f431-b5ce-4e99-a40f-4b1e122d00d0)
                UUID: Vendor specific           (89d3502b-0f36-433a-8ef4-c502ad55f8dc)
                UUID: Vendor specific           (9fa480e0-4967-4542-9390-d343dc5d04ae)
                UUID: Vendor specific           (d0611e78-bbb4-4591-a5f8-487910ae4366)
                Modalias: bluetooth:v004Cp710Cd0E70
                Battery Percentage: 0x55 (85)
        [iPhone]# quit
        
        # cat /proc/bus/input/devices
        I: Bus=0019 Vendor=0001 Product=0001 Version=0100
        N: Name="1c22800.lradc"
        P: Phys=sun4i_lradc/input0
        S: Sysfs=/devices/platform/soc/1c22800.lradc/input/input0
        U: Uniq=
        H: Handlers=kbd event0 
        B: PROP=0
        B: EV=3
        B: KEY=3 0 0 0 0 0 0 0 c0000 0 0 0

        I: Bus=0019 Vendor=0000 Product=0000 Version=0000
        N: Name="rotary@0"
        P: Phys=
        S: Sysfs=/devices/platform/rotary@0/input/input1
        U: Uniq=
        H: Handlers=event1 
        B: PROP=0
        B: EV=5
        B: REL=1

        I: Bus=0018 Vendor=0000 Product=0000 Version=0000
        N: Name="ns2009_ts"
        P: Phys=input/ts
        S: Sysfs=/devices/platform/soc/1c2ac00.i2c/i2c-0/0-0048/input/input2
        U: Uniq=
        H: Handlers=event2 
        B: PROP=0
        B: EV=b
        B: KEY=400 0 0 0 0 0 0 0 0 0 0
        B: ABS=3

        I: Bus=0005 Vendor=004c Product=710c Version=0e70
        N: Name="iPhone (AVRCP)"
        P: Phys=34:20:03:aa:a3:7e
        S: Sysfs=/devices/virtual/input/input5
        U: Uniq=
        H: Handlers=kbd event3 
        B: PROP=0
        B: EV=100007
        B: KEY=2fc800 1452 0 0 0 0 10300 49e8 c00 e1680 f f8100000 10000ffc
        B: REL=0
        

12. 通过AVRCP来控制手机上一曲,下一曲等 https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/media-api.txt
    `注意这里的蓝牙地址是你手机的,不是蓝牙模块的,因为要控制的是你的手机进行一一曲,下一曲的,地址不对会提示错误,就是这个原因,另外我测试除了不能调节音量外,其它的都能控制,不知道为什么?`
        Error org.freedesktop.DBus.Error.UnknownObject: Method "Previous" with signature "" on interface "org.bluez.MediaControl1" doesn't exist

        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.Pause
        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.Play
        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.Previous
        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.Next
        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.VolumeUp
        # dbus-send --system --print-reply --dest=org.bluez /org/bluez/hci0/dev_D8_8F_76_51_A7_87 org.bluez.MediaControl1.VolumeDown
        以下返回结果,可以看到"org.bluez.MediaControl1"已经注册了,但是提示已废弃,新的方法是"org.bluez.MediaPlay1",但是我这里用不了

        <node>
            <interface name="org.freedesktop.DBus.Introspectable">
                <method name="Introspect">
                    <arg name="xml" type="s" direction="out"/>
                </method>
            </interface>
            <interface name="org.bluez.Device1">
                <method name="Disconnect"></method>
                <method name="Connect"></method>
                <method name="ConnectProfile">
                    <arg name="UUID" type="s" direction="in"/>
                </method>
                <method name="DisconnectProfile">
                    <arg name="UUID" type="s" direction="in"/>
                </method>
                <method name="Pair"></method>
                <method name="CancelPairing"></method>
                <property name="Address" type="s" access="read"></property>
                <property name="AddressType" type="s" access="read"></property>
                <property name="Name" type="s" access="read"></property>
                <property name="Alias" type="s" access="readwrite"></property>
                <property name="Class" type="u" access="read"></property>
                <property name="Appearance" type="q" access="read"></property>
                <property name="Icon" type="s" access="read"></property>
                <property name="Paired" type="b" access="read"></property>
                <property name="Trusted" type="b" access="readwrite"></property>
                <property name="Blocked" type="b" access="readwrite"></property>
                <property name="LegacyPairing" type="b" access="read"></property>
                <property name="RSSI" type="n" access="read"></property>
                <property name="Connected" type="b" access="read"></property>
                <property name="UUIDs" type="as" access="read"></property>
                <property name="Modalias" type="s" access="read"></property>
                <property name="Adapter" type="o" access="read"></property>
                <property name="ManufacturerData" type="a{qv}" access="read"></property>
                <property name="ServiceData" type="a{sv}" access="read"></property>
                <property name="TxPower" type="n" access="read"></property>
                <property name="ServicesResolved" type="b" access="read"></property>
                <property name="WakeAllowed" type="b" access="readwrite"></property>
            </interface>
            <interface name="org.freedesktop.DBus.Properties">
                <method name="Get">
                    <arg name="interface" type="s" direction="in"/>
                    <arg name="name" type="s" direction="in"/>
                    <arg name="value" type="v" direction="out"/>
                </method>
                <method name="Set">
                    <arg name="interface" type="s" direction="in"/>
                    <arg name="name" type="s" direction="in"/>
                    <arg name="value" type="v" direction="in"/>
                </method>
                <method name="GetAll">
                    <arg name="interface" type="s" direction="in"/>
                    <arg name="properties" type="a{sv}" direction="out"/>
                </method>
                <signal name="PropertiesChanged">
                    <arg name="interface" type="s"/>
                    <arg name="changed_properties" type="a{sv}"/>
                    <arg name="invalidated_properties" type="as"/>
                </signal>
            </interface>
            <interface name="org.bluez.Network1">
                <method name="Connect">
                    <arg name="uuid" type="s" direction="in"/>
                    <arg name="interface" type="s" direction="out"/>
                </method>
                <method name="Disconnect"></method>
                <property name="Connected" type="b" access="read"></property>
                <property name="Interface" type="s" access="read"></property>
                <property name="UUID" type="s" access="read"></property>
            </interface>
            <interface name="org.bluez.MediaControl1">
                <method name="Play">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="Pause">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="Stop">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="Next">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="Previous">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="VolumeUp">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="VolumeDown">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="FastForward">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <method name="Rewind">
                    <annotation name="org.freedesktop.DBus.Deprecated" value="true"/>
                </method>
                <property name="Connected" type="b" access="read"></property>
                <property name="Player" type="o" access="read"></property>
            </interface>
            <interface name="org.bluez.Battery1">
                <property name="Percentage" type="y" access="read"></property>
            </interface>
            <node name="fd1"/>
            <node name="player2"/>
            <node name="sep1"/>
            <node name="sep2"/>
            <node name="sep3"/>
            <node name="sep4"/>
            <node name="sep5"/>
            <node name="sep6"/>
            <node name="service0006"/>
            <node name="service000a"/>
            <node name="service000f"/>
            <node name="service0014"/>
            <node name="service0018"/>
            <node name="service001e"/>
            <node name="service0023"/>
            <node name="service002d"/>
        </node>"

13. 另外在蓝牙连接成功时会在/dev/input/目录下注册一个event3

        I: Bus=0005 Vendor=004c Product=710c Version=0e70
        N: Name="iPhone (AVRCP)"
        P: Phys=34:20:03:aa:a3:7e
        S: Sysfs=/devices/virtual/input/input5
        U: Uniq=
        H: Handlers=kbd event3 
        B: PROP=0
        B: EV=100007
        B: KEY=2fc800 1452 0 0 0 0 10300 49e8 c00 e1680 f f8100000 10000ffc
        B: REL=0

        我偿试过使用sendevent 去操作/dev/input/event3 但是没有任何反应,不知道能不能这样操作?
        # ./sendevent /dev/input/event3 1 116 1
        # ./sendevent /dev/input/event3 0 0 0
        # ./sendevent /dev/input/event3 1 114 1

14. 至此,BLUETOOTH,DLNA,AIRPLAYER都可以通过Alsa声卡一起同时播放了

最近编辑记录 xfdr0805 (2021-07-28 13:05:08)

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#1 2021-07-28 20:58:13

微凉VeiLiang
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Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

感谢分享

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#2 2021-07-29 09:58:50

sblpp
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积分: 86

Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

该评论内容与本帖子无关,鼓励各位坑友积极发言讨论与帖子有关的内容!

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  • 不通过:与技术无关

楼主 #3 2021-07-30 09:50:37

xfdr0805
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积分: 212

Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

蓝牙连接成功后,自动生成了一个event3  通过这个为什么不能控制手机呢?还是说我的手机变成了一个输入设备,按手机音量加减 也没事件输出啊?

# evtest /dev/input/event3
Input driver version is 1.0.1
Input device ID: bus 0x5 vendor 0x4c product 0x710c version 0xe70
Input device name: "iPhone (AVRCP)"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 2 (KEY_1)
    Event code 3 (KEY_2)
    Event code 4 (KEY_3)
    Event code 5 (KEY_4)
    Event code 6 (KEY_5)
    Event code 7 (KEY_6)
    Event code 8 (KEY_7)
    Event code 9 (KEY_8)
    Event code 10 (KEY_9)
    Event code 11 (KEY_0)
    Event code 28 (KEY_ENTER)
    Event code 52 (KEY_DOT)
    Event code 59 (KEY_F1)
    Event code 60 (KEY_F2)
    Event code 61 (KEY_F3)
    Event code 62 (KEY_F4)
    Event code 63 (KEY_F5)
    Event code 64 (KEY_F6)
    Event code 65 (KEY_F7)
    Event code 66 (KEY_F8)
    Event code 67 (KEY_F9)
    Event code 103 (KEY_UP)
    Event code 105 (KEY_LEFT)
    Event code 106 (KEY_RIGHT)
    Event code 108 (KEY_DOWN)
    Event code 113 (KEY_MUTE)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 138 (KEY_HELP)
    Event code 139 (KEY_MENU)
    Event code 163 (KEY_NEXTSONG)
    Event code 165 (KEY_PREVIOUSSONG)
    Event code 166 (KEY_STOPCD)
    Event code 167 (KEY_RECORD)
    Event code 168 (KEY_REWIND)
    Event code 171 (KEY_CONFIG)
    Event code 174 (KEY_EXIT)
    Event code 200 (KEY_PLAYCD)
    Event code 201 (KEY_PAUSECD)
    Event code 208 (KEY_FASTFORWARD)
    Event code 353 (KEY_SELECT)
    Event code 356 (KEY_POWER2)
    Event code 358 (KEY_INFO)
    Event code 362 (KEY_PROGRAM)
    Event code 364 (KEY_FAVORITES)
    Event code 395 (KEY_LIST)
    Event code 398 (KEY_RED)
    Event code 399 (KEY_GREEN)
    Event code 400 (KEY_YELLOW)
    Event code 401 (KEY_BLUE)
    Event code 402 (KEY_CHANNELUP)
    Event code 403 (KEY_CHANNELDOWN)
    Event code 405 (KEY_LAST)
  Event type 2 (EV_REL)
Key repeat handling:
  Repeat type 20 (EV_REP)
    Repeat code 0 (REP_DELAY)
      Value    300
    Repeat code 1 (REP_PERIOD)
      Value     33
Properties:
Testing ... (interrupt to exit)

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#4 2021-07-31 15:34:06

TeveT
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Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

无法用dbus 发送事件去上下曲 ,应当是bluealsa 的插件没打开

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楼主 #5 2021-08-02 11:41:00

xfdr0805
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Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

TeveT 说:

无法用dbus 发送事件去上下曲 ,应当是bluealsa 的插件没打开

可以使用dbus发送事件,只是不太清楚,在蓝牙连接后自动生成的那个event是干什么的,看起来像个键盘

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#6 2022-03-22 17:19:58

小杨
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积分: 3.5

Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

楼主,您好,请问一下您是自己设计的开发板吗?我现在是自己设计了开发板,主控是V3S,wifi/蓝牙模块用的也是 RTL8723DS,主线是linux3.14.y 。但是在ifconfig wlan0 up时候,串口一直循环发送 下面信息
[  155.448728] RTW: -871x_drv - drv_open, bup=1
[  155.453102] RTW: cfg80211_rtw_set_power_mgmt(wlan0) enabled:1, timeout:-1
[  155.459979] RTW: rtw_ndev_notifier_call(wlan0) state:1
[  155.465329] RTW: skip abnormal rx packet(5)
[  155.469638] RTW: skip abnormal rx packet(5)
[  155.469638] RTW: skip abnormal rx packet(5)
[  155.473878] RTW: skip abnormal rx packet(5)
[  155.478142] RTW: skip abnormal rx packet(5)
[  155.482375] RTW: skip abnormal rx packet(5)

请问一下楼主,您有遇到这样的情况吗?

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#7 2022-04-01 20:15:02

小杨
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积分: 3.5

Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

楼主,您好,您可以分享一下您的RTL8723DS这个天线的原理图和PCB布局吗?借鉴一下您的天线布局布线,麻烦楼主了,谢谢。
PS:QQ(2985438804)

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楼主 #8 2022-04-11 18:10:48

xfdr0805
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注册时间: 2020-07-23
已发帖子: 219
积分: 212

Re: 分享在V3S RTL8723DS 上调试蓝牙音频的一点经验

小杨 说:

楼主,您好,您可以分享一下您的RTL8723DS这个天线的原理图和PCB布局吗?借鉴一下您的天线布局布线,麻烦楼主了,谢谢。
PS:QQ(2985438804)

这个是Kicad里系统自带的天线 分左和右2种

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