src/lib/CECProcessor.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   6  * libCEC(R) is an original work, containing original code.
   7  *
   8  * libCEC(R) is a trademark of Pulse-Eight Limited.
   9  *
  10  * This program is dual-licensed; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  *
  25  * Alternatively, you can license this library under a commercial license,
  26  * please contact Pulse-Eight Licensing for more information.
  27  *
  28  * For more information contact:
  29  * Pulse-Eight Licensing       <license@pulse-eight.com>
  30  *     http://www.pulse-eight.com/
  31  *     http://www.pulse-eight.net/
  32  */
  33
  34 #include <string>
  35 #include "../../include/cectypes.h"
  36 #include "platform/threads/threads.h"
  37 #include "platform/util/buffer.h"
  38 #include "adapter/AdapterCommunication.h"
  39
  40 namespace CEC
  41 {
  42   class CLibCEC;
  43   class IAdapterCommunication;
  44   class CCECBusDevice;
  45
  46   // a buffer that priotises the input from the TV.
  47   // if we need more than this, we'll have to change it into a priority_queue
  48   class CCECInputBuffer
  49   {
  50   public:
  51     CCECInputBuffer(void) : m_bHasData(false) {}
  52     virtual ~CCECInputBuffer(void)
  53     {
  54       m_condition.Broadcast();
  55     }
  56
  57     bool Push(const cec_command &command)
  58     {
  59       bool bReturn(false);
  60       PLATFORM::CLockObject lock(m_mutex);
  61       if (command.initiator == CECDEVICE_TV)
  62         bReturn = m_tvInBuffer.Push(command);
  63       else
  64         bReturn = m_inBuffer.Push(command);
  65
  66       m_bHasData |= bReturn;
  67       if (m_bHasData)
  68         m_condition.Signal();
  69
  70       return bReturn;
  71     }
  72
  73     bool Pop(cec_command &command, uint16_t iTimeout = 10000)
  74     {
  75       bool bReturn(false);
  76       PLATFORM::CLockObject lock(m_mutex);
  77       if (m_tvInBuffer.IsEmpty() && m_inBuffer.IsEmpty() &&
  78           !m_condition.Wait(m_mutex, m_bHasData, iTimeout))
  79         return bReturn;
  80
  81       if (m_tvInBuffer.Pop(command))
  82         bReturn = true;
  83       else if (m_inBuffer.Pop(command))
  84         bReturn = true;
  85
  86       m_bHasData = !m_tvInBuffer.IsEmpty() || !m_inBuffer.IsEmpty();
  87       return bReturn;
  88     }
  89
  90   private:
  91     PLATFORM::CMutex                    m_mutex;
  92     PLATFORM::CCondition<volatile bool> m_condition;
  93     volatile bool                       m_bHasData;
  94     PLATFORM::SyncedBuffer<cec_command> m_tvInBuffer;
  95     PLATFORM::SyncedBuffer<cec_command> m_inBuffer;
  96   };
  97
  98   class CCECProcessor : public PLATFORM::CThread, public IAdapterCommunicationCallback
  99   {
 100     public:
 101       CCECProcessor(CLibCEC *controller, const char *strDeviceName, const cec_device_type_list &types, uint16_t iPhysicalAddress);
 102       CCECProcessor(CLibCEC *controller, libcec_configuration *configuration);
 103       virtual ~CCECProcessor(void);
 104
 105       bool Start(const char *strPort, uint16_t iBaudRate = 38400, uint32_t iTimeoutMs = 10000);
 106       void *Process(void);
 107       void Close(void);
 108
 109       bool                  OnCommandReceived(const cec_command &command);
 110
 111       bool                  IsMonitoring(void) const { return m_bMonitor; }
 112       CCECBusDevice *       GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress, bool bSuppressUpdate = true);
 113       CCECBusDevice *       GetDeviceByType(cec_device_type type) const;
 114       CCECBusDevice *       GetPrimaryDevice(void) const;
 115       cec_version           GetDeviceCecVersion(cec_logical_address iAddress);
 116       bool                  GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language);
 117       CStdString            GetDeviceName(void) const;
 118       cec_osd_name          GetDeviceOSDName(cec_logical_address iAddress);
 119       uint64_t              GetDeviceVendorId(cec_logical_address iAddress);
 120       cec_power_status      GetDevicePowerStatus(cec_logical_address iAddress);
 121       cec_logical_address   GetLogicalAddress(void) const { return m_configuration.logicalAddresses.primary; }
 122       cec_logical_addresses GetLogicalAddresses(void) const { return m_configuration.logicalAddresses; }
 123       cec_logical_addresses GetActiveDevices(void);
 124       uint16_t              GetDevicePhysicalAddress(cec_logical_address iAddress);
 125       bool                  HasLogicalAddress(cec_logical_address address) const { return m_configuration.logicalAddresses.IsSet(address); }
 126       bool                  IsPresentDevice(cec_logical_address address);
 127       bool                  IsPresentDeviceType(cec_device_type type);
 128       uint16_t              GetPhysicalAddress(void) const;
 129       uint64_t              GetLastTransmission(void) const { return m_iLastTransmission; }
 130       cec_logical_address   GetActiveSource(void);
 131       bool                  IsActiveSource(cec_logical_address iAddress);
 132       bool                  IsInitialised(void);
 133       bool                  SetStreamPath(uint16_t iPhysicalAddress);
 134       cec_client_version    GetClientVersion(void) const { return (cec_client_version)m_configuration.clientVersion; };
 135       bool                  StandbyDevices(cec_logical_address address = CECDEVICE_BROADCAST);
 136       bool                  PowerOnDevices(cec_logical_address address = CECDEVICE_BROADCAST);
 137
 138       bool SetActiveView(void);
 139       bool SetActiveSource(cec_device_type type = CEC_DEVICE_TYPE_RESERVED);
 140       bool SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate = true);
 141       bool SetDeckInfo(cec_deck_info info, bool bSendUpdate = true);
 142       bool SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort, bool bForce = false);
 143       bool TransmitInactiveSource(void);
 144       bool SetLogicalAddress(cec_logical_address iLogicalAddress);
 145       bool SetMenuState(cec_menu_state state, bool bSendUpdate = true);
 146       bool SetPhysicalAddress(uint16_t iPhysicalAddress, bool bSendUpdate = true);
 147       bool SetActiveSource(uint16_t iStreamPath);
 148       bool SwitchMonitoring(bool bEnable);
 149       bool PollDevice(cec_logical_address iAddress);
 150       uint8_t VolumeUp(bool bSendRelease = true);
 151       uint8_t VolumeDown(bool bSendRelease = true);
 152       uint8_t MuteAudio(bool bSendRelease = true);
 153       bool TransmitKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait = true);
 154       bool TransmitKeyRelease(cec_logical_address iDestination, bool bWait = true);
 155       bool EnablePhysicalAddressDetection(void);
 156       void SetStandardLineTimeout(uint8_t iTimeout);
 157       void SetRetryLineTimeout(uint8_t iTimeout);
 158       bool GetCurrentConfiguration(libcec_configuration *configuration);
 159       bool SetConfiguration(const libcec_configuration *configuration);
 160       bool CanPersistConfiguration(void);
 161       bool PersistConfiguration(libcec_configuration *configuration);
 162       void RescanActiveDevices(void);
 163
 164       bool SetLineTimeout(uint8_t iTimeout);
 165
 166       const char *ToString(const cec_device_type type);
 167       const char *ToString(const cec_menu_state state);
 168       const char *ToString(const cec_version version);
 169       const char *ToString(const cec_power_status status);
 170       const char *ToString(const cec_logical_address address);
 171       const char *ToString(const cec_deck_control_mode mode);
 172       const char *ToString(const cec_deck_info status);
 173       const char *ToString(const cec_opcode opcode);
 174       const char *ToString(const cec_system_audio_status mode);
 175       const char *ToString(const cec_audio_status status);
 176       const char *ToString(const cec_vendor_id vendor);
 177       const char *ToString(const cec_client_version version);
 178       const char *ToString(const cec_server_version version);
 179
 180       bool Transmit(const cec_command &data);
 181       void TransmitAbort(cec_logical_address address, cec_opcode opcode, cec_abort_reason reason = CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
 182
 183       bool ChangeDeviceType(cec_device_type from, cec_device_type to);
 184       bool FindLogicalAddresses(void);
 185       bool SetAckMask(uint16_t iMask);
 186
 187       bool StartBootloader(const char *strPort = NULL);
 188       bool PingAdapter(void);
 189       void HandlePoll(cec_logical_address initiator, cec_logical_address destination);
 190       bool HandleReceiveFailed(cec_logical_address initiator);
 191
 192       bool GetDeviceInformation(const char *strPort, libcec_configuration *config, uint32_t iTimeoutMs = 10000);
 193
 194       bool TransmitPendingActiveSourceCommands(void);
 195
 196       CCECBusDevice *  m_busDevices[16];
 197
 198   private:
 199       bool OpenConnection(const char *strPort, uint16_t iBaudRate, uint32_t iTimeoutMs, bool bStartListening = true);
 200       bool Initialise(void);
 201       void SetInitialised(bool bSetTo = true);
 202       void CreateBusDevices(void);
 203
 204       void ReplaceHandlers(void);
 205       bool PhysicalAddressInUse(uint16_t iPhysicalAddress);
 206       bool TryLogicalAddress(cec_logical_address address);
 207       bool FindLogicalAddressRecordingDevice(void);
 208       bool FindLogicalAddressTuner(void);
 209       bool FindLogicalAddressPlaybackDevice(void);
 210       bool FindLogicalAddressAudioSystem(void);
 211
 212       void LogOutput(const cec_command &data);
 213       void ParseCommand(const cec_command &command);
 214
 215       bool                                m_bConnectionOpened;
 216       bool                                m_bInitialised;
 217       PLATFORM::CMutex                    m_mutex;
 218       IAdapterCommunication *             m_communication;
 219       CLibCEC*                            m_controller;
 220       bool                                m_bMonitor;
 221       cec_keypress                        m_previousKey;
 222       PLATFORM::CThread *                 m_busScan;
 223       uint8_t                             m_iStandardLineTimeout;
 224       uint8_t                             m_iRetryLineTimeout;
 225       uint64_t                            m_iLastTransmission;
 226       CCECInputBuffer                     m_inBuffer;
 227       libcec_configuration                m_configuration;
 228   };
 229 };