/*
    * Avrcp.hpp
    * Bluetooth AVRCP (Audio/Video Remote Control Profile) -- minimal Target role
    * Copyright (c) 2026 Daniel Hammer
*/

#pragma once
#include <cstdint>

namespace Drivers::USB::Bluetooth::Avrcp {

    // Process an AVCTP packet arriving on an AVRCP control channel (PSM 0x0017).
    // Implements a minimal AVRCP Target: unit/subunit info, honest rejection of
    // unimplemented pass-through controls, capabilities, one-shot absolute-
    // volume notification, and absolute-volume control.  Runs
    // from the ACL receive path (DrainEvents, top-level) -- sending is safe
    // there, blocking waits are not (none are used).
    void ProcessAvctp(uint16_t localCid, const uint8_t* data, uint16_t len);

    // Complete an outstanding EVENT_VOLUME_CHANGED registration.  AVRCP
    // notifications are one-shot: after CHANGED the controller registers again.
    void NotifyVolumeChanged(int percent);

    // Drop registrations tied to a channel that L2CAP has torn down.
    void OnChannelClosed(uint16_t localCid);

}