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 Enable physical address detection (if the connected adapter supports this).
 142      * @return True when physical address detection was enabled, false otherwise.
 143      */
 144     virtual bool EnablePhysicalAddressDetection(void) = 0;
 145
 146     /*!
 147      * @brief Changes the active HDMI port.
 148      * @param iBaseDevice The device to which this libcec is connected.
 149      * @param iPort The new port number.
 150      * @return True when changed, false otherwise.
 151      */
 152     virtual bool SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort) = 0;
 153
 154     /*!
 155      * @brief Power on the connected CEC capable devices.
 156      * @param address The logical address to power on.
 157      * @return True when the command was sent succesfully, false otherwise.
 158      */
 159     virtual bool PowerOnDevices(cec_logical_address address = CECDEVICE_TV) = 0;
 160
 161     /*!
 162      * @brief Put connected CEC capable devices in standby mode.
 163      * @brief address The logical address of the device to put in standby.
 164      * @return True when the command was sent succesfully, false otherwise.
 165      */
 166     virtual bool StandbyDevices(cec_logical_address address = CECDEVICE_BROADCAST) = 0;
 167
 168     /*!
 169      * @brief Change the active source.
 170      * @param type The new active source. Leave empty to use the primary type
 171      * @return True when the command was sent succesfully, false otherwise.
 172      */
 173     virtual bool SetActiveSource(cec_device_type type = CEC_DEVICE_TYPE_RESERVED) = 0;
 174
 175     /*!
 176      * @deprecated Use SetActiveSource() instead
 177      */
 178     virtual bool SetActiveView(void) = 0;
 179
 180     /*!
 181      * @brief Change the deck control mode, if this adapter is registered as playback device.
 182      * @param mode The new control mode.
 183      * @param bSendUpdate True to send the status over the CEC line.
 184      * @return True if set, false otherwise.
 185      */
 186     virtual bool SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate = true) = 0;
 187
 188     /*!
 189      * @brief Change the deck info, if this adapter is a playback device.
 190      * @param info The new deck info.
 191      * @return True if set, false otherwise.
 192      */
 193     virtual bool SetDeckInfo(cec_deck_info info, bool bSendUpdate = true) = 0;
 194
 195     /*!
 196      * @brief Broadcast a message that notifies connected CEC capable devices that this device is no longer the active source.
 197      * @return True when the command was sent succesfully, false otherwise.
 198      */
 199     virtual bool SetInactiveView(void) = 0;
 200
 201     /*!
 202      * @brief Change the menu state.
 203      * @param state The new true.
 204      * @param bSendUpdate True to send the status over the CEC line.
 205      * @return True if set, false otherwise.
 206      */
 207     virtual bool SetMenuState(cec_menu_state state, bool bSendUpdate = true) = 0;
 208
 209     /*!
 210      * @brief Display a message on the device with the given logical address.
 211      * @param iLogicalAddres The device to display the message on.
 212      * @param duration The duration of the message
 213      * @param strMessage The message to display.
 214      * @return True when the command was sent, false otherwise.
 215      */
 216     virtual bool SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage) = 0;
 217
 218     /*!
 219      * @brief Enable or disable monitoring mode.
 220      * @param bEnable True to enable, false to disable.
 221      * @return True when switched successfully, false otherwise.
 222      */
 223     virtual bool SwitchMonitoring(bool bEnable) = 0;
 224
 225     /*!
 226      * @brief Get the CEC version of the device with the given logical address
 227      * @param iLogicalAddress The device to get the CEC version for.
 228      * @return The version or CEC_VERSION_UNKNOWN when the version couldn't be fetched.
 229      */
 230     virtual cec_version GetDeviceCecVersion(cec_logical_address iAddress) = 0;
 231
 232     /*!
 233      * @brief Get the menu language of the device with the given logical address
 234      * @param iLogicalAddress The device to get the menu language for.
 235      * @param language The requested menu language.
 236      * @return True when fetched succesfully, false otherwise.
 237      */
 238     virtual bool GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language) = 0;
 239
 240     /*!
 241      * @brief Get the vendor ID of the device with the given logical address.
 242      * @param iLogicalAddress The device to get the vendor id for.
 243      * @return The vendor ID or 0 if it wasn't found.
 244      */
 245     virtual uint64_t GetDeviceVendorId(cec_logical_address iAddress) = 0;
 246
 247     /*!
 248      * @brief Get the power status of the device with the given logical address.
 249      * @param iLogicalAddress The device to get the power status for.
 250      * @return The power status or CEC_POWER_STATUS_UNKNOWN if it wasn't found.
 251      */
 252     virtual cec_power_status GetDevicePowerStatus(cec_logical_address iAddress) = 0;
 253
 254     /*!
 255      * @brief Get the physical address of the device with the given logical address.
 256      * @param iLogicalAddress The device to get the vendor id for.
 257      * @return The physical address or 0 if it wasn't found.
 258      */
 259     virtual uint16_t GetDevicePhysicalAddress(cec_logical_address iAddress) = 0;
 260
 261     /*!
 262      * @brief Sends a POLL message to a device.
 263      * @param iAddress The device to send the message to.
 264      * @return True if the POLL was acked, false otherwise.
 265      */
 266     virtual bool PollDevice(cec_logical_address iAddress) = 0;
 267
 268     /*!
 269      * @return The devices that are active on the bus and not handled by libcec.
 270      */
 271     virtual cec_logical_addresses GetActiveDevices(void) = 0;
 272
 273     /*!
 274      * @brief Check whether a device is active on the bus.
 275      * @param iAddress The address to check.
 276      * @return True when active, false otherwise.
 277      */
 278     virtual bool IsActiveDevice(cec_logical_address iAddress) = 0;
 279
 280     /*!
 281      * @brief Check whether a device of the given type is active on the bus.
 282      * @param type The type to check.
 283      * @return True when active, false otherwise.
 284      */
 285     virtual bool IsActiveDeviceType(cec_device_type type) = 0;
 286
 287     /*!
 288      * @brief Sends a volume up keypress to an audiosystem if it's present.
 289      * @param bWait Wait for the response of the audiosystem when true.
 290      * @return The new audio status.
 291      */
 292     virtual uint8_t VolumeUp(bool bWait = true) = 0;
 293
 294     /*!
 295      * @brief Sends a volume down keypress to an audiosystem if it's present.
 296      * @param bWait Wait for the response of the audiosystem when true.
 297      * @return The new audio status.
 298      */
 299     virtual uint8_t VolumeDown(bool bWait = true) = 0;
 300
 301     /*!
 302      * @brief Sends a mute keypress to an audiosystem if it's present.
 303      * @param bWait Wait for the response of the audiosystem when true.
 304      * @return The new audio status.
 305      */
 306     virtual uint8_t MuteAudio(bool bWait = true) = 0;
 307
 308     /*!
 309      * @brief Send a keypress to a device on the CEC bus.
 310      * @param iDestination The address to send the message to.
 311      * @param key The key to send.
 312      * @param bWait True to wait for a response, false otherwise.
 313      * @return True when the keypress was acked, false otherwise.
 314      */
 315     virtual bool SendKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait = false) = 0;
 316
 317     /*!
 318      * @brief Send a key release to a device on the CEC bus.
 319      * @param iDestination The address to send the message to.
 320      * @param bWait True to wait for a response, false otherwise.
 321      * @return True when the keypress was acked, false otherwise.
 322      */
 323     virtual bool SendKeyRelease(cec_logical_address iDestination, bool bWait = false) = 0;
 324
 325     /*!
 326      * @brief Get the OSD name of a device on the CEC bus.
 327      * @param iAddress The device to get the OSD name for.
 328      * @return The OSD name.
 329      */
 330     virtual cec_osd_name GetDeviceOSDName(cec_logical_address iAddress) = 0;
 331
 332     /*!
 333      * @brief Get the logical address of the device that is currently the active source on the CEC bus.
 334      * @return The active source or CECDEVICE_UNKNOWN when unknown.
 335      */
 336     virtual cec_logical_address GetActiveSource(void) = 0;
 337
 338     /*!
 339      * @brief Check whether a device is currently the active source on the CEC bus.
 340      * @param iAddress The address to check.
 341      * @return True when it is the active source, false otherwise.
 342      */
 343     virtual bool IsActiveSource(cec_logical_address iAddress) = 0;
 344
 345     virtual const char *ToString(const cec_menu_state state) = 0;
 346     virtual const char *ToString(const cec_version version) = 0;
 347     virtual const char *ToString(const cec_power_status status) = 0;
 348     virtual const char *ToString(const cec_logical_address address) = 0;
 349     virtual const char *ToString(const cec_deck_control_mode mode) = 0;
 350     virtual const char *ToString(const cec_deck_info status) = 0;
 351     virtual const char *ToString(const cec_opcode opcode) = 0;
 352     virtual const char *ToString(const cec_system_audio_status mode) = 0;
 353     virtual const char *ToString(const cec_audio_status status) = 0;
 354     virtual const char *ToString(const cec_vendor_id vendor) = 0;
 355
 356   };
 357 };
 358
 359 /*!
 360  * @brief Load the CEC adapter library.
 361  * @param strDeviceName How to present this device to other devices.
 362  * @param deviceTypes The device types to use on the CEC bus.
 363  * @return An instance of ICECAdapter or NULL on error.
 364  */
 365 extern "C" DECLSPEC void * CECInit(const char *strDeviceName, CEC::cec_device_type_list devicesTypes);
 366
 367 /*!
 368  * @deprecated Please use CECInit() instead
 369  * @brief Load the CEC adapter library.
 370  * @param strDeviceName How to present this device to other devices.
 371  * @param iLogicalAddress The logical of this device. PLAYBACKDEVICE1 by default.
 372  * @param iPhysicalAddress The physical address of this device. 0x1000 by default.
 373  * @return An instance of ICECAdapter or NULL on error.
 374  */
 375 extern "C" DECLSPEC void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress = CEC::CECDEVICE_PLAYBACKDEVICE1, uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS);
 376
 377 /*!
 378  * @brief Unload the CEC adapter library.
 379  */
 380 extern "C" DECLSPEC void CECDestroy(CEC::ICECAdapter *instance);
 381
 382 #endif /* CECEXPORTS_H_ */