From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> This adds audio plugin IPC is used to communicate Android BlueZ daemon and audio plugin. --- android/hal-ipc-api.txt | 76 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/android/hal-ipc-api.txt b/android/hal-ipc-api.txt index 9a8b770..bc8a128 100644 --- a/android/hal-ipc-api.txt +++ b/android/hal-ipc-api.txt @@ -1245,3 +1245,79 @@ Android HAL name: "gatt" (BT_PROFILE_GATT_ID) Opcode 0x9c - Request Write notification Opcode 0x9d - Request Execute Write notification Opcode 0x9e - Response Confirmation notification + +Bluetooth Audio Plugin (ID = 10) +================================ + +The audio plugin happen to be in a different socket but all the rules for +HAL socket apply here as well. + + .--Android--. .---Audio---. + | daemon | | Plugin | + | | Command | | + | | <-------------------------- | | + | | --------------------------> | | + | | Response | | + | | | | + | | | | + | | Notification | | + | | --------------------------> | | + | | | | + '-----------' '-----------' + +Android HAL name: "audio" (BT_AUDIO_ID) + + Opcode 0x00 - Error response + + Response parameters: Status (1 octet) + + Valid status values: 0x01 = Fail + 0x02 = Not ready + 0x03 = No memory + 0x04 = Busy + 0x05 = Done (already completed) + 0x06 = Unsupported + 0x07 = Parameter invalid + 0x08 = Unhandled + 0x09 = Authentication failure + 0x0a = Remote device down + + Opcode 0x01 - Register Audio Endpoint commmand + + Command parameters: Service UUID (16 octets) + Codec ID (1 octets) + Codec capabilities length (1 octets) + Codec capabilities (variable) + Codec configuration length (1 octets) + Codec configuration (variable) + Response parameters: Endpoint ID (1 octets) + + Opcode 0x02 - Unregister Audio Endpoint command + + Command parameters: Endpoint ID (1 octets) + + Opcode 0x03 - Resume Audio command + + Command parameters: Endpoint ID (1 octets) + + Opcode 0x04 - Suspend Audio command + + Command parameters: Endpoint ID (1 octets) + +Notifications: + + Opcode 0x80 - Audio State Changed notification + + Notification paremters: Endpoint ID (1 octets) + State (1 octets) + + Valid state values: 0x01 = Idle + 0x02 = Suspended + 0x03 = Running + + Opcode 0x81 - New Audio Connection notification + + Notification parameters: Endpoint ID (1 octets) + Codec configuration length (1 octets) + Codec configuration (variable) + 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
