include/cec.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011 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 #ifndef CECEXPORTS_H_
  35 #define CECEXPORTS_H_
  36
  37 #include <cectypes.h>
  38
  39 namespace CEC
  40 {
  41   class ICECAdapter
  42   {
  43   public:
  44     virtual ~ICECAdapter() {};
  45     /*! @name Adapter methods */
  46     //@{
  47
  48     /*!
  49      * @brief Open a connection to the CEC adapter.
  50      * @param strPort The path to the port.
  51      * @param iTimeout Connection timeout in ms.
  52      * @return True when connected, false otherwise.
  53      */
  54     virtual bool Open(const char *strPort, uint32_t iTimeoutMs = 10000) = 0;
  55
  56     /*!
  57      * @brief Close the connection to the CEC adapter.
  58      */
  59     virtual void Close(void) = 0;
  60
  61     /*!
  62      * @brief Try to find all connected CEC adapters. Only implemented on Linux at the moment.
  63      * @param deviceList The vector to store device descriptors in.
  64      * @param iBufSize The size of the deviceList buffer.
  65      * @param strDevicePath Optional device path. Only adds device descriptors that match the given device path.
  66      * @return The number of devices that were found, or -1 when an error occured.
  67      */
  68     virtual int8_t FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath = NULL) = 0;
  69
  70     /*!
  71      * @brief Ping the CEC adapter.
  72      * @return True when the ping was succesful, false otherwise.
  73      */
  74     virtual bool PingAdapter(void) = 0;
  75
  76     /*!
  77      * @brief Start the bootloader of the CEC adapter.
  78      * @return True when the command was sent succesfully, false otherwise.
  79      */
  80     virtual bool StartBootloader(void) = 0;
  81     //@}
  82
  83     /*!
  84      * @return Get the minimal version of libcec that this version of libcec can interface with.
  85      */
  86     virtual int8_t GetMinLibVersion(void) const = 0;
  87
  88     /*!
  89      * @return Get the major version of libcec.
  90      */
  91     virtual int8_t GetLibVersionMajor(void) const = 0;
  92
  93     /*!
  94      * @return Get the minor version of libcec.
  95      */
  96     virtual int8_t GetLibVersionMinor(void) const = 0;
  97
  98     /*!
  99      * @brief Get the next log message in the queue, if there is one.
 100      * @param message The next message.
 101      * @return True if a message was passed, false otherwise.
 102      */
 103     virtual bool GetNextLogMessage(cec_log_message *message) = 0;
 104
 105     /*!
 106      * @brief Get the next keypress in the queue, if there is one.
 107      * @param key The next keypress.
 108      * @return True if a key was passed, false otherwise.
 109      */
 110     virtual bool GetNextKeypress(cec_keypress *key) = 0;
 111
 112     /*!
 113      * @brief Get the next CEC command that was received by the adapter.
 114      * @param action The next command.
 115      * @return True when a command was passed, false otherwise.
 116      */
 117     virtual bool GetNextCommand(cec_command *command) = 0;
 118
 119     /*!
 120      * @brief Transmit a command over the CEC line.
 121      * @param data The command to send.
 122      * @return True when the data was sent and acked, false otherwise.
 123      */
 124     virtual bool Transmit(const cec_command &data) = 0;
 125
 126     /*!
 127      * @brief Change the logical address of the CEC adapter.
 128      * @param iLogicalAddress The CEC adapter's new logical address.
 129      * @return True when the logical address was set successfully, false otherwise.
 130      */
 131     virtual bool SetLogicalAddress(cec_logical_address iLogicalAddress = CECDEVICE_PLAYBACKDEVICE1) = 0;
 132
 133     /*!
 134      * @brief Change the physical address (HDMI port) of the CEC adapter.
 135      * @param iPhysicalAddress The CEC adapter's new physical address.
 136      * @brief True when the physical address was set successfully, false otherwise.
 137      */
 138     virtual bool SetPhysicalAddress(uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS) = 0;
 139
 140     /*!
 141      * @brief Power on the connected CEC capable devices.
 142      * @param address The logical address to power on.
 143      * @return True when the command was sent succesfully, false otherwise.
 144      */
 145     virtual bool PowerOnDevices(cec_logical_address address = CECDEVICE_TV) = 0;
 146
 147     /*!
 148      * @brief Put connected CEC capable devices in standby mode.
 149      * @brief address The logical address of the device to put in standby.
 150      * @return True when the command was sent succesfully, false otherwise.
 151      */
 152     virtual bool StandbyDevices(cec_logical_address address = CECDEVICE_BROADCAST) = 0;
 153
 154     /*!
 155      * @brief Broadcast a message that notifies connected CEC capable devices that this device is the active source.
 156      * @return True when the command was sent succesfully, false otherwise.
 157      */
 158     virtual bool SetActiveView(void) = 0;
 159
 160     /*!
 161      * @brief Broadcast a message that notifies connected CEC capable devices that this device is no longer the active source.
 162      * @return True when the command was sent succesfully, false otherwise.
 163      */
 164     virtual bool SetInactiveView(void) = 0;
 165
 166     /*!
 167      * @brief Display a message on the device with the given logical address.
 168      * @param iLogicalAddres The device to display the message on.
 169      * @param duration The duration of the message
 170      * @param strMessage The message to display.
 171      * @return True when the command was sent, false otherwise.
 172      */
 173     virtual bool SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage) = 0;
 174
 175     /*!
 176      * @brief Enable or disable monitoring mode.
 177      * @param bEnable True to enable, false to disable.
 178      * @return True when switched successfully, false otherwise.
 179      */
 180     virtual bool SwitchMonitoring(bool bEnable) = 0;
 181
 182     /*!
 183      * @brief Get the CEC version of the device with the given logical address
 184      * @param iLogicalAddress The device to get the CEC version for.
 185      * @return The version or CEC_VERSION_UNKNOWN when the version couldn't be fetched.
 186      */
 187     virtual cec_version GetDeviceCecVersion(cec_logical_address iAddress) = 0;
 188
 189     /*!
 190      * @brief Get the menu language of the device with the given logical address
 191      * @param iLogicalAddress The device to get the menu language for.
 192      * @param language The requested menu language.
 193      * @return True when fetched succesfully, false otherwise.
 194      */
 195     virtual bool GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language) = 0;
 196
 197     /*!
 198      * @brief Get the vendor ID of the device with the given logical address.
 199      * @param iLogicalAddress The device to get the vendor id for.
 200      * @return The vendor ID or 0 if it wasn't found.
 201      */
 202     virtual uint64_t GetDeviceVendorId(cec_logical_address iAddress) = 0;
 203
 204     /*!
 205      * @brief Get the power status of the device with the given logical address.
 206      * @param iLogicalAddress The device to get the power status for.
 207      * @return The power status or CEC_POWER_STATUS_UNKNOWN if it wasn't found.
 208      */
 209     virtual cec_power_status GetDevicePowerStatus(cec_logical_address iAddress) = 0;
 210
 211     /*!
 212      * @brief Sends a POLL message to a device.
 213      * @param iAddress The device to send the message to.
 214      * @return True if the POLL was acked, false otherwise.
 215      */
 216     virtual bool PollDevice(cec_logical_address iAddress) = 0;
 217   };
 218 };
 219
 220 /*!
 221  * @brief Load the CEC adapter library.
 222  * @param strDeviceName How to present this device to other devices.
 223  * @param deviceTypes The device types to use on the CEC bus.
 224  * @return An instance of ICECAdapter or NULL on error.
 225  */
 226 extern "C" DECLSPEC void * CECInit(const char *strDeviceName, CEC::cec_device_type_list devicesTypes);
 227
 228 /*!
 229  * @brief Load the CEC adapter library.
 230  * @param strDeviceName How to present this device to other devices.
 231  * @param iLogicalAddress The logical of this device. PLAYBACKDEVICE1 by default.
 232  * @param iPhysicalAddress The physical address of this device. 0x1000 by default.
 233  * @return An instance of ICECAdapter or NULL on error.
 234  */
 235 extern "C" DECLSPEC void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress = CEC::CECDEVICE_PLAYBACKDEVICE1, uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS);
 236
 237 /*!
 238  * @brief Unload the CEC adapter library.
 239  */
 240 extern "C" DECLSPEC void CECDestroy(CEC::ICECAdapter *instance);
 241
 242 #endif /* CECEXPORTS_H_ */