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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 "ipc/param_traits_macros.h"
     12 #include "media/midi/midi_port_info.h"
     13 #include "media/midi/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_STRUCT_TRAITS_BEGIN(media::MidiPortInfo)
     21   IPC_STRUCT_TRAITS_MEMBER(id)
     22   IPC_STRUCT_TRAITS_MEMBER(manufacturer)
     23   IPC_STRUCT_TRAITS_MEMBER(name)
     24   IPC_STRUCT_TRAITS_MEMBER(version)
     25 IPC_STRUCT_TRAITS_END()
     26 
     27 IPC_ENUM_TRAITS_MAX_VALUE(media::MidiResult, media::MIDI_RESULT_LAST)
     28 
     29 // Messages for IPC between MidiDispatcher and MidiDispatcherHost.
     30 
     31 // Renderer request to browser for using system exclusive messages.
     32 IPC_MESSAGE_ROUTED3(MidiHostMsg_RequestSysExPermission,
     33                     int /* client id */,
     34                     GURL /* origin */,
     35                     bool /* user_gesture */)
     36 
     37 // Renderer request to browser for canceling a previous permission request.
     38 IPC_MESSAGE_ROUTED2(MidiHostMsg_CancelSysExPermissionRequest,
     39                      int /* bridge_id */,
     40                      GURL /* GURL of the frame */)
     41 
     42 // Messages sent from the browser to the renderer.
     43 
     44 IPC_MESSAGE_ROUTED2(MidiMsg_SysExPermissionApproved,
     45                     int /* client id */,
     46                     bool /* is_allowed */)
     47 
     48 // Messages for IPC between MidiMessageFilter and MidiHost.
     49 
     50 // Renderer request to browser for access to MIDI services.
     51 IPC_MESSAGE_CONTROL1(MidiHostMsg_StartSession,
     52                      int /* client id */)
     53 
     54 IPC_MESSAGE_CONTROL3(MidiHostMsg_SendData,
     55                      uint32 /* port */,
     56                      std::vector<uint8> /* data */,
     57                      double /* timestamp */)
     58 
     59 // Messages sent from the browser to the renderer.
     60 
     61 IPC_MESSAGE_CONTROL4(MidiMsg_SessionStarted,
     62                      int /* client id */,
     63                      media::MidiResult /* result */,
     64                      media::MidiPortInfoList /* input ports */,
     65                      media::MidiPortInfoList /* output ports */)
     66 
     67 IPC_MESSAGE_CONTROL3(MidiMsg_DataReceived,
     68                      uint32 /* port */,
     69                      std::vector<uint8> /* data */,
     70                      double /* timestamp */)
     71 
     72 IPC_MESSAGE_CONTROL1(MidiMsg_AcknowledgeSentData,
     73                      uint32 /* bytes sent */)
     74