xref: /external/chromium_org/content/common/media/midi_messages.h

// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// IPC messages for access to MIDI hardware.
// Multiply-included message file, hence no include guard.

#include "base/basictypes.h"
#include "content/common/content_export.h"
#include "ipc/ipc_message_macros.h"
#include "ipc/param_traits_macros.h"
#include "media/midi/midi_port_info.h"
#include "media/midi/midi_result.h"
#include "url/gurl.h"

#undef IPC_MESSAGE_EXPORT
#define IPC_MESSAGE_EXPORT CONTENT_EXPORT
#define IPC_MESSAGE_START MidiMsgStart

IPC_STRUCT_TRAITS_BEGIN(media::MidiPortInfo)
  IPC_STRUCT_TRAITS_MEMBER(id)
  IPC_STRUCT_TRAITS_MEMBER(manufacturer)
  IPC_STRUCT_TRAITS_MEMBER(name)
  IPC_STRUCT_TRAITS_MEMBER(version)
IPC_STRUCT_TRAITS_END()

IPC_ENUM_TRAITS_MAX_VALUE(media::MidiResult, media::MIDI_RESULT_LAST)

// Messages for IPC between MidiDispatcher and MidiDispatcherHost.

// Renderer request to browser for using system exclusive messages.
IPC_MESSAGE_ROUTED3(MidiHostMsg_RequestSysExPermission,
                    int /* client id */,
                    GURL /* origin */,
                    bool /* user_gesture */)

// Renderer request to browser for canceling a previous permission request.
IPC_MESSAGE_ROUTED2(MidiHostMsg_CancelSysExPermissionRequest,
                     int /* bridge_id */,
                     GURL /* GURL of the frame */)

// Messages sent from the browser to the renderer.

IPC_MESSAGE_ROUTED2(MidiMsg_SysExPermissionApproved,
                    int /* client id */,
                    bool /* is_allowed */)

// Messages for IPC between MidiMessageFilter and MidiHost.

// Renderer request to browser for access to MIDI services.
IPC_MESSAGE_CONTROL1(MidiHostMsg_StartSession,
                     int /* client id */)

IPC_MESSAGE_CONTROL3(MidiHostMsg_SendData,
                     uint32 /* port */,
                     std::vector<uint8> /* data */,
                     double /* timestamp */)

// Messages sent from the browser to the renderer.

IPC_MESSAGE_CONTROL4(MidiMsg_SessionStarted,
                     int /* client id */,
                     media::MidiResult /* result */,
                     media::MidiPortInfoList /* input ports */,
                     media::MidiPortInfoList /* output ports */)

IPC_MESSAGE_CONTROL3(MidiMsg_DataReceived,
                     uint32 /* port */,
                     std::vector<uint8> /* data */,
                     double /* timestamp */)

IPC_MESSAGE_CONTROL1(MidiMsg_AcknowledgeSentData,
                     uint32 /* bytes sent */)