From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> This IPC is used to communicate Android BlueZ daemon and AudioFlinger plugin. --- android/audio-ipc-api.txt | 50 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 android/audio-ipc-api.txt diff --git a/android/audio-ipc-api.txt b/android/audio-ipc-api.txt new file mode 100644 index 0000000..e2b85ab --- /dev/null +++ b/android/audio-ipc-api.txt @@ -0,0 +1,50 @@ +Bluetooth Audio Plugin +====================== + +The audio plugin happen to be in a different socket but all the rules for +HAL socket apply here as well, the abstract socket name is +"\0bluez_audio_socket" (tentative): + + .--Android--. .---Audio---. + | daemon | | Plugin | + | | Command | | + | | <-------------------------- | | + | | | | + | | --------------------------> | | + | | Response | | + | | | | + | | | | + | | Notification | | + | | --------------------------> | | + | | | | + '-----------' '-----------' + + +Identifier: "audio" (BT_AUDIO_ID) + + Opcode 0x00 - Error response + + Response parameters: Status (1 octet) + + Opcode 0x01 - Register Audio Endpoint commmand + + Command parameters: Service UUID (16 octets) + Codec ID (1 octets) + Codec capabilities length (1 octets) + Codec capabilities (variable) + Number of codec presets (1 octets) + Codec preset # length (1 octets) + Codec preset # configuration (variable) + ... + Response parameters: Endpoint ID (1 octets) + + Opcode 0x02 - Unregister Audio Endpoint command + + Command parameters: Endpoint ID (1 octets) + Response parameters: <none> + + Opcode 0x81 - New Audio Connection notification + + Notification parameters: Endpoint ID (1 octets) + Codec preset # (1 octets) + File descriptor (inline) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
