src/lib/adapter/RPi/RPiCECAdapterCommunication.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 #if defined(HAVE_RPI_API)
  35
  36 #include "lib/adapter/AdapterCommunication.h"
  37 #include "lib/platform/threads/threads.h"
  38
  39 extern "C" {
  40 #include <interface/vmcs_host/vc_cecservice.h>
  41 #include <interface/vchiq_arm/vchiq_if.h>
  42 }
  43
  44 namespace CEC
  45 {
  46   class CRPiCECAdapterMessageQueue;
  47   class CRPiCECAdapterCommunication;
  48
  49   class CRPiCECAdapterFindNewLogicalAddress : public PLATFORM::CThread
  50   {
  51   public:
  52     CRPiCECAdapterFindNewLogicalAddress(CRPiCECAdapterCommunication* communication, const cec_logical_address address);
  53     void *Process(void);
  54   private:
  55     CRPiCECAdapterCommunication* m_communication;
  56     cec_logical_address          m_address;
  57   };
  58
  59   class CRPiCECAdapterCommunication : public IAdapterCommunication
  60   {
  61     friend class CRPiCECAdapterFindNewLogicalAddress;
  62
  63   public:
  64     /*!
  65      * @brief Create a new USB-CEC communication handler.
  66      * @param callback The callback to use for incoming CEC commands.
  67      */
  68     CRPiCECAdapterCommunication(IAdapterCommunicationCallback *callback);
  69     virtual ~CRPiCECAdapterCommunication(void);
  70
  71     /** @name IAdapterCommunication implementation */
  72     ///{
  73     bool Open(uint32_t iTimeoutMs = CEC_DEFAULT_CONNECT_TIMEOUT, bool bSkipChecks = false, bool bStartListening = true);
  74     void Close(void);
  75     bool IsOpen(void) { return m_bInitialised; };
  76     std::string GetError(void) const;
  77     cec_adapter_message_state Write(const cec_command &data, bool &bRetry, uint8_t iLineTimeout, bool bIsReply);
  78
  79     bool SetLineTimeout(uint8_t UNUSED(iTimeout)) { return true; };
  80     bool StartBootloader(void) { return false; };
  81     bool SetLogicalAddresses(const cec_logical_addresses &addresses);
  82     cec_logical_addresses GetLogicalAddresses(void);
  83     bool PingAdapter(void) { return m_bInitialised; };
  84     uint16_t GetFirmwareVersion(void);
  85     uint32_t GetFirmwareBuildDate(void) { return 0; };
  86     bool IsRunningLatestFirmware(void) { return true; };
  87     bool PersistConfiguration(const libcec_configuration & UNUSED(configuration)) { return false; };
  88     bool GetConfiguration(libcec_configuration & UNUSED(configuration)) { return false; };
  89     std::string GetPortName(void) { std::string strReturn("RPI"); return strReturn; };
  90     uint16_t GetPhysicalAddress(void);
  91     bool SetControlledMode(bool UNUSED(controlled)) { return true; };
  92     cec_vendor_id GetVendorId(void) { return CEC_VENDOR_BROADCOM; }
  93     bool SupportsSourceLogicalAddress(const cec_logical_address address) { return address > CECDEVICE_TV && address < CECDEVICE_BROADCAST; }
  94     cec_adapter_type GetAdapterType(void) { return ADAPTERTYPE_RPI; };
  95     ///}
  96
  97     bool IsInitialised(void);
  98     void OnDataReceived(uint32_t p0, uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4);
  99
 100     static void InitHost(void);
 101
 102   private:
 103     cec_logical_address GetLogicalAddress(void);
 104     bool UnregisterLogicalAddress(void);
 105     bool RegisterLogicalAddress(const cec_logical_address address);
 106     int InitHostCEC(void);
 107
 108     bool m_bInitialised;   /**< true when the connection is initialised, false otherwise */
 109     std::string m_strError; /**< current error message */
 110     CRPiCECAdapterMessageQueue *m_queue;
 111     cec_logical_address         m_logicalAddress;
 112
 113     bool                        m_bLogicalAddressChanged;
 114     PLATFORM::CCondition<bool>  m_logicalAddressCondition;
 115     PLATFORM::CMutex            m_mutex;
 116     VCHI_INSTANCE_T             m_vchi_instance;
 117     VCHI_CONNECTION_T *         m_vchi_connection;
 118     CRPiCECAdapterFindNewLogicalAddress* m_laLost;
 119   };
 120 };
 121
 122 #endif