cec: refactor CEC read/write. keep a single lock for all writes, not one per device

[deb_libcec.git] / src / lib / implementations / CECCommandHandler.h

#pragma once
/*
 * This file is part of the libCEC(R) library.
 *
 * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited.  All rights reserved.
 * libCEC(R) is an original work, containing original code.
 *
 * libCEC(R) is a trademark of Pulse-Eight Limited.
 *
 * This program is dual-licensed; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *
 * Alternatively, you can license this library under a commercial license,
 * please contact Pulse-Eight Licensing for more information.
 *
 * For more information contact:
 * Pulse-Eight Licensing       <license@pulse-eight.com>
 *     http://www.pulse-eight.com/
 *     http://www.pulse-eight.net/
 */

#include <cectypes.h>
#include <vector>
#include "../util/StdString.h"
#include "../platform/threads.h"

namespace CEC
{
  class CCECProcessor;
  class CCECBusDevice;

  class CCECCommandHandler
  {
  public:
    CCECCommandHandler(CCECBusDevice *busDevice);
    virtual ~CCECCommandHandler(void);

    virtual bool HandleCommand(const cec_command &command);
    virtual cec_vendor_id GetVendorId(void) { return CEC_VENDOR_UNKNOWN; };
    virtual void HandlePoll(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool HandleReceiveFailed(void);

    virtual bool InitHandler(void) { return true; }

    virtual bool TransmitPowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress);
    virtual bool TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion);
    virtual bool TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress);
    virtual bool TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState);
    virtual bool TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, CStdString strDeviceName);
    virtual bool TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage);
    virtual bool TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type);
    virtual bool TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination);
    virtual bool TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state);
    virtual bool TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId);
    virtual bool TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state);
    virtual bool TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state);
    virtual bool TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state);
    virtual bool TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state);
    virtual bool SendKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key);
    virtual bool SendKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination);

  protected:
    virtual bool HandleActiveSource(const cec_command &command);
    virtual bool HandleDeckControl(const cec_command &command);
    virtual bool HandleDeviceCecVersion(const cec_command &command);
    virtual bool HandleDeviceVendorCommandWithId(const cec_command &command);
    virtual bool HandleDeviceVendorId(const cec_command &command);
    virtual bool HandleGetCecVersion(const cec_command &command);
    virtual bool HandleGiveAudioStatus(const cec_command &command);
    virtual bool HandleGiveDeckStatus(const cec_command &command);
    virtual bool HandleGiveDevicePowerStatus(const cec_command &command);
    virtual bool HandleGiveDeviceVendorId(const cec_command &command);
    virtual bool HandleGiveOSDName(const cec_command &command);
    virtual bool HandleGivePhysicalAddress(const cec_command &command);
    virtual bool HandleGiveSystemAudioModeStatus(const cec_command &command);
    virtual bool HandleImageViewOn(const cec_command &command);
    virtual bool HandleMenuRequest(const cec_command &command);
    virtual bool HandleReportAudioStatus(const cec_command &command);
    virtual bool HandleReportPhysicalAddress(const cec_command &command);
    virtual bool HandleReportPowerStatus(const cec_command &command);
    virtual bool HandleRequestActiveSource(const cec_command &command);
    virtual bool HandleRoutingChange(const cec_command &command);
    virtual bool HandleRoutingInformation(const cec_command &command);
    virtual bool HandleSetMenuLanguage(const cec_command &command);
    virtual bool HandleSetOSDName(const cec_command &command);
    virtual bool HandleSetStreamPath(const cec_command &command);
    virtual bool HandleSystemAudioModeRequest(const cec_command &command);
    virtual bool HandleStandby(const cec_command &command);
    virtual bool HandleSystemAudioModeStatus(const cec_command &command);
    virtual bool HandleSetSystemAudioMode(const cec_command &command);
    virtual bool HandleTextViewOn(const cec_command &command);
    virtual bool HandleUserControlPressed(const cec_command &command);
    virtual bool HandleUserControlRelease(const cec_command &command);
    virtual void UnhandledCommand(const cec_command &command);

    virtual unsigned int GetMyDevices(std::vector<CCECBusDevice *> &devices) const;
    virtual CCECBusDevice *GetDevice(cec_logical_address iLogicalAddress) const;
    virtual CCECBusDevice *GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const;
    virtual CCECBusDevice *GetDeviceByType(cec_device_type type) const;

    virtual bool SetVendorId(const cec_command &command);
    virtual void SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress);

    virtual bool Transmit(cec_command &command);

    CCECBusDevice *m_busDevice;
    CCECProcessor *m_processor;
    int32_t        m_iTransmitTimeout;
    CCondition     m_condition;
  };
};