Android 蓝牙AVRCP功能的实现Word文档下载推荐.docx

1、externalbluetoothbluezaudiocontrol.c（1） 按键的MAPstatic struct const char *name; uint8_t avrcp; uint16_t uinput; key_map = PLAY, PLAY_OP, KEY_PLAYCD ,STOP, STOP_OP, KEY_STOPCD ,PAUSE, PAUSE_OP, KEY_PAUSECD ,FORWARD, FORWARD_OP, KEY_NEXTSONG ,BACKWARD, BACKWARD_OP, KEY_PREVIOUSSONG ,REWIND, REWIND_OP, K

2、EY_REWIND ,FAST FORWARD, FAST_FORWARD_OP, KEY_FASTFORWARD , NULL ;（2） 按键处理static void handle_panel_passthrough（struct control *control, for （i = 0; key_mapi.name != NULL; i+） uint8_t key_quirks; if （operands0 & 0x7F） != key_mapi.avrcp） continue; DBG（AVRCP: %s %s, key_mapi.name, status）; key_quirks =

3、 control-key_quirkskey_mapi.avrcp; if （key_quirks & QUIRK_NO_RELEASE） if （!pressed） DBG（ Ignoring release）; break; DBG（ treating key press as press + release send_key（control-uinput, key_mapi.uinput, 1）;uinput, key_mapi.uinput, 0）; break; send_key（control-uinput, key_mapi.uinput, pressed）; break; HC

4、IDUMP数据分析以Sony耳机DRC-BT15为例#adb shell#hcidump X左键: ACL data: handle 12 flags 0x02 dlen 12 L2CAP（d）: cid 0x0042 len 8 psm 0 0000: 30 11 0e 00 48 7c 4c 00 0.H|L.uinput = fffffffe,send_key = 201对应MEDIA_PLAY_PAUSE operands0 = c6 （= 0x46 0x80 表示按键释放了） key_quirks = 0, pressed = 0按键释放uinput = fffffffe,send_key = 201 对应MEDIA_PLAY_PAUSE再按一次”“播放/暂停键”: operands0 = 44 对应PLAY_OP key_quirks = 0, pressed = 1 按键按下uinput = fffffffe,send_key = 200 对应MEDIA_PLAY_PAUSE - handle_panel_passth