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      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 "media/midi/midi_port_info.h"
     12 #include "url/gurl.h"
     13 
     14 #undef IPC_MESSAGE_EXPORT
     15 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
     16 #define IPC_MESSAGE_START MIDIMsgStart
     17 
     18 IPC_STRUCT_TRAITS_BEGIN(media::MIDIPortInfo)
     19   IPC_STRUCT_TRAITS_MEMBER(id)
     20   IPC_STRUCT_TRAITS_MEMBER(manufacturer)
     21   IPC_STRUCT_TRAITS_MEMBER(name)
     22   IPC_STRUCT_TRAITS_MEMBER(version)
     23 IPC_STRUCT_TRAITS_END()
     24 
     25 // Messages for IPC between MIDIDispatcher and MIDIDispatcherHost.
     26 
     27 // Renderer request to browser for using system exclusive messages.
     28 IPC_MESSAGE_CONTROL3(MIDIHostMsg_RequestSysExPermission,
     29                      int /* routing id */,
     30                      int /* client id */,
     31                      GURL /* origin */)
     32 
     33 // Renderer request to browser for canceling a previous permission request.
     34 IPC_MESSAGE_CONTROL3(MIDIHostMsg_CancelSysExPermissionRequest,
     35                      int /* render_view_id */,
     36                      int /* bridge_id */,
     37                      GURL /* GURL of the frame */)
     38 
     39 // Messages sent from the browser to the renderer.
     40 
     41 IPC_MESSAGE_ROUTED2(MIDIMsg_SysExPermissionApproved,
     42                     int /* client id */,
     43                     bool /* success */)
     44 
     45 // Messages for IPC between MIDIMessageFilter and MIDIHost.
     46 
     47 // Renderer request to browser for access to MIDI services.
     48 IPC_MESSAGE_CONTROL1(MIDIHostMsg_StartSession,
     49                      int /* client id */)
     50 
     51 IPC_MESSAGE_CONTROL3(MIDIHostMsg_SendData,
     52                      uint32 /* port */,
     53                      std::vector<uint8> /* data */,
     54                      double /* timestamp */)
     55 
     56 // Messages sent from the browser to the renderer.
     57 
     58 IPC_MESSAGE_CONTROL4(MIDIMsg_SessionStarted,
     59                      int /* client id */,
     60                      bool /* success */,
     61                      media::MIDIPortInfoList /* input ports */,
     62                      media::MIDIPortInfoList /* output ports */)
     63 
     64 IPC_MESSAGE_CONTROL3(MIDIMsg_DataReceived,
     65                      uint32 /* port */,
     66                      std::vector<uint8> /* data */,
     67                      double /* timestamp */)
     68 
     69 IPC_MESSAGE_CONTROL1(MIDIMsg_AcknowledgeSentData,
     70                      uint32 /* bytes sent */)
     71