content/common/media/midi_messages.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // IPC messages for access to MIDI hardware.
   6 // Multiply-included message file, hence no include guard.
   7
   8 #include "base/basictypes.h"
   9 #include "content/common/content_export.h"
  10 #include "ipc/ipc_message_macros.h"
  11 #include "ipc/param_traits_macros.h"
  12 #include "media/midi/midi_port_info.h"
  13 #include "media/midi/result.h"
  14 #include "url/gurl.h"
  15
  16 #undef IPC_MESSAGE_EXPORT
  17 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  18 #define IPC_MESSAGE_START MidiMsgStart
  19
  20 IPC_ENUM_TRAITS_MAX_VALUE(media::midi::MidiPortState,
  21                           media::midi::MIDI_PORT_STATE_LAST)
  22
  23 IPC_STRUCT_TRAITS_BEGIN(media::midi::MidiPortInfo)
  24   IPC_STRUCT_TRAITS_MEMBER(id)
  25   IPC_STRUCT_TRAITS_MEMBER(manufacturer)
  26   IPC_STRUCT_TRAITS_MEMBER(name)
  27   IPC_STRUCT_TRAITS_MEMBER(version)
  28   IPC_STRUCT_TRAITS_MEMBER(state)
  29 IPC_STRUCT_TRAITS_END()
  30
  31 IPC_ENUM_TRAITS_MAX_VALUE(media::midi::Result, media::midi::Result::MAX)
  32
  33 // Messages for IPC between MidiMessageFilter and MidiHost.
  34
  35 // Renderer request to browser for access to MIDI services.
  36 IPC_MESSAGE_CONTROL0(MidiHostMsg_StartSession)
  37
  38 IPC_MESSAGE_CONTROL3(MidiHostMsg_SendData,
  39                      uint32 /* port */,
  40                      std::vector<uint8> /* data */,
  41                      double /* timestamp */)
  42
  43 IPC_MESSAGE_CONTROL0(MidiHostMsg_EndSession)
  44
  45 // Messages sent from the browser to the renderer.
  46
  47 IPC_MESSAGE_CONTROL1(MidiMsg_AddInputPort,
  48                      media::midi::MidiPortInfo /* input port */)
  49
  50 IPC_MESSAGE_CONTROL1(MidiMsg_AddOutputPort,
  51                      media::midi::MidiPortInfo /* output port */)
  52
  53 IPC_MESSAGE_CONTROL2(MidiMsg_SetInputPortState,
  54                      uint32 /* port */,
  55                      media::midi::MidiPortState /* state */)
  56
  57 IPC_MESSAGE_CONTROL2(MidiMsg_SetOutputPortState,
  58                      uint32 /* port */,
  59                      media::midi::MidiPortState /* state */)
  60
  61 IPC_MESSAGE_CONTROL1(MidiMsg_SessionStarted, media::midi::Result /* result */)
  62
  63 IPC_MESSAGE_CONTROL3(MidiMsg_DataReceived,
  64                      uint32 /* port */,
  65                      std::vector<uint8> /* data */,
  66                      double /* timestamp */)
  67
  68 IPC_MESSAGE_CONTROL1(MidiMsg_AcknowledgeSentData,
  69                      uint32 /* bytes sent */)