include/cec.h

   1 #pragma once
   2 /*
   3  * This file is part of the libCEC(R) library.
   4  *
   5  * libCEC(R) is Copyright (C) 2011-2012 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 #ifndef CECEXPORTS_H_
  35 #define CECEXPORTS_H_
  36
  37 #include "cectypes.h"
  38
  39 #define LIBCEC_VERSION_CURRENT CEC_SERVER_VERSION_1_7_0
  40
  41 namespace CEC
  42 {
  43   class ICECAdapter
  44   {
  45   public:
  46     virtual ~ICECAdapter() {};
  47     /*! @name Adapter methods */
  48     //@{
  49
  50     /*!
  51      * @brief Open a connection to the CEC adapter.
  52      * @param strPort The path to the port.
  53      * @param iTimeoutMs Connection timeout in ms.
  54      * @return True when connected, false otherwise.
  55      */
  56     virtual bool Open(const char *strPort, uint32_t iTimeoutMs = 10000) = 0;
  57
  58     /*!
  59      * @brief Close the connection to the CEC adapter.
  60      */
  61     virtual void Close(void) = 0;
  62
  63     /*!
  64      * @brief Set and enable the callback methods. If this method is not called, the GetNext...() methods will have to be used.
  65      * @param cbParam Parameter to pass to callback methods.
  66      * @param callbacks The callbacks to set.
  67      * @return True when enabled, false otherwise.
  68      */
  69     virtual bool EnableCallbacks(void *cbParam, ICECCallbacks *callbacks) = 0;
  70
  71     /*!
  72      * @brief Try to find all connected CEC adapters. Only implemented on Linux and Windows at the moment.
  73      * @param deviceList The vector to store device descriptors in.
  74      * @param iBufSize The size of the deviceList buffer.
  75      * @param strDevicePath Optional device path. Only adds device descriptors that match the given device path.
  76      * @return The number of devices that were found, or -1 when an error occured.
  77      */
  78     virtual int8_t FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath = NULL) = 0;
  79
  80     /*!
  81      * @brief Ping the CEC adapter.
  82      * @return True when the ping was succesful, false otherwise.
  83      */
  84     virtual bool PingAdapter(void) = 0;
  85
  86     /*!
  87      * @brief Start the bootloader of the CEC adapter.
  88      * @return True when the command was sent succesfully, false otherwise.
  89      */
  90     virtual bool StartBootloader(void) = 0;
  91     //@}
  92
  93     /*!
  94      * @deprecated Use libcec_configuration instead
  95      * @return Get the minimal version of libcec that this version of libcec can interface with.
  96      */
  97     virtual int8_t GetMinLibVersion(void) const = 0;
  98
  99     /*!
 100      * @deprecated Use libcec_configuration instead
 101      * @return Get the major version of libcec.
 102      */
 103     virtual int8_t GetLibVersionMajor(void) const = 0;
 104
 105     /*!
 106      * @deprecated Use libcec_configuration instead
 107      * @return Get the minor version of libcec.
 108      */
 109     virtual int8_t GetLibVersionMinor(void) const = 0;
 110
 111     /*!
 112      * @deprecated Use callback methods instead
 113      * @brief Get the next log message in the queue, if there is one.
 114      * @param message The next message.
 115      * @return True if a message was passed, false otherwise.
 116      */
 117     virtual bool GetNextLogMessage(cec_log_message *message) = 0;
 118
 119     /*!
 120      * @deprecated Use callback methods instead
 121      * @brief Get the next keypress in the queue, if there is one.
 122      * @param key The next keypress.
 123      * @return True if a key was passed, false otherwise.
 124      */
 125     virtual bool GetNextKeypress(cec_keypress *key) = 0;
 126
 127     /*!
 128      * @deprecated Use callback methods instead
 129      * @brief Get the next CEC command that was received by the adapter.
 130      * @param command The next command.
 131      * @return True when a command was passed, false otherwise.
 132      */
 133     virtual bool GetNextCommand(cec_command *command) = 0;
 134
 135     /*!
 136      * @brief Transmit a command over the CEC line.
 137      * @param data The command to send.
 138      * @return True when the data was sent and acked, false otherwise.
 139      */
 140     virtual bool Transmit(const cec_command &data) = 0;
 141
 142     /*!
 143      * @brief Change the logical address of the CEC adapter.
 144      * @param iLogicalAddress The CEC adapter's new logical address.
 145      * @return True when the logical address was set successfully, false otherwise.
 146      */
 147     virtual bool SetLogicalAddress(cec_logical_address iLogicalAddress = CECDEVICE_PLAYBACKDEVICE1) = 0;
 148
 149     /*!
 150      * @brief Change the physical address (HDMI port) of the CEC adapter.
 151      * @param iPhysicalAddress The CEC adapter's new physical address.
 152      * @brief True when the physical address was set successfully, false otherwise.
 153      */
 154     virtual bool SetPhysicalAddress(uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS) = 0;
 155
 156     /*!
 157      * @deprecated Use libcec_configuration instead.
 158      * @brief Enable physical address detection (if the connected adapter supports this).
 159      * @return True when physical address detection was enabled, false otherwise.
 160      */
 161     virtual bool EnablePhysicalAddressDetection(void) = 0;
 162
 163     /*!
 164      * @brief Changes the active HDMI port.
 165      * @param iBaseDevice The device to which this libcec is connected.
 166      * @param iPort The new port number.
 167      * @return True when changed, false otherwise.
 168      */
 169     virtual bool SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort) = 0;
 170
 171     /*!
 172      * @brief Power on the connected CEC capable devices.
 173      * @param address The logical address to power on.
 174      * @return True when the command was sent succesfully, false otherwise.
 175      */
 176     virtual bool PowerOnDevices(cec_logical_address address = CECDEVICE_TV) = 0;
 177
 178     /*!
 179      * @brief Put connected CEC capable devices in standby mode.
 180      * @brief address The logical address of the device to put in standby.
 181      * @return True when the command was sent succesfully, false otherwise.
 182      */
 183     virtual bool StandbyDevices(cec_logical_address address = CECDEVICE_BROADCAST) = 0;
 184
 185     /*!
 186      * @brief Change the active source.
 187      * @param type The new active source. Leave empty to use the primary type
 188      * @return True when the command was sent succesfully, false otherwise.
 189      */
 190     virtual bool SetActiveSource(cec_device_type type = CEC_DEVICE_TYPE_RESERVED) = 0;
 191
 192     /*!
 193      * @deprecated Use SetActiveSource() instead
 194      */
 195     virtual bool SetActiveView(void) = 0;
 196
 197     /*!
 198      * @brief Change the deck control mode, if this adapter is registered as playback device.
 199      * @param mode The new control mode.
 200      * @param bSendUpdate True to send the status over the CEC line.
 201      * @return True if set, false otherwise.
 202      */
 203     virtual bool SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate = true) = 0;
 204
 205     /*!
 206      * @brief Change the deck info, if this adapter is a playback device.
 207      * @param info The new deck info.
 208      * @param bSendUpdate True to send the status over the CEC line.
 209      * @return True if set, false otherwise.
 210      */
 211     virtual bool SetDeckInfo(cec_deck_info info, bool bSendUpdate = true) = 0;
 212
 213     /*!
 214      * @brief Broadcast a message that notifies connected CEC capable devices that this device is no longer the active source.
 215      * @return True when the command was sent succesfully, false otherwise.
 216      */
 217     virtual bool SetInactiveView(void) = 0;
 218
 219     /*!
 220      * @brief Change the menu state.
 221      * @param state The new true.
 222      * @param bSendUpdate True to send the status over the CEC line.
 223      * @return True if set, false otherwise.
 224      */
 225     virtual bool SetMenuState(cec_menu_state state, bool bSendUpdate = true) = 0;
 226
 227     /*!
 228      * @brief Display a message on the device with the given logical address.
 229      * @param iLogicalAddress The device to display the message on.
 230      * @param duration The duration of the message
 231      * @param strMessage The message to display.
 232      * @return True when the command was sent, false otherwise.
 233      */
 234     virtual bool SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage) = 0;
 235
 236     /*!
 237      * @brief Enable or disable monitoring mode.
 238      * @param bEnable True to enable, false to disable.
 239      * @return True when switched successfully, false otherwise.
 240      */
 241     virtual bool SwitchMonitoring(bool bEnable) = 0;
 242
 243     /*!
 244      * @brief Get the CEC version of the device with the given logical address
 245      * @param iLogicalAddress The device to get the CEC version for.
 246      * @return The version or CEC_VERSION_UNKNOWN when the version couldn't be fetched.
 247      */
 248     virtual cec_version GetDeviceCecVersion(cec_logical_address iLogicalAddress) = 0;
 249
 250     /*!
 251      * @brief Get the menu language of the device with the given logical address
 252      * @param iLogicalAddress The device to get the menu language for.
 253      * @param language The requested menu language.
 254      * @return True when fetched succesfully, false otherwise.
 255      */
 256     virtual bool GetDeviceMenuLanguage(cec_logical_address iLogicalAddress, cec_menu_language *language) = 0;
 257
 258     /*!
 259      * @brief Get the vendor ID of the device with the given logical address.
 260      * @param iLogicalAddress The device to get the vendor id for.
 261      * @return The vendor ID or 0 if it wasn't found.
 262      */
 263     virtual uint64_t GetDeviceVendorId(cec_logical_address iLogicalAddress) = 0;
 264
 265     /*!
 266      * @brief Get the power status of the device with the given logical address.
 267      * @param iLogicalAddress The device to get the power status for.
 268      * @return The power status or CEC_POWER_STATUS_UNKNOWN if it wasn't found.
 269      */
 270     virtual cec_power_status GetDevicePowerStatus(cec_logical_address iLogicalAddress) = 0;
 271
 272     /*!
 273      * @brief Get the physical address of the device with the given logical address.
 274      * @param iLogicalAddress The device to get the vendor id for.
 275      * @return The physical address or 0 if it wasn't found.
 276      */
 277     virtual uint16_t GetDevicePhysicalAddress(cec_logical_address iLogicalAddress) = 0;
 278
 279     /*!
 280      * @brief Sends a POLL message to a device.
 281      * @param iLogicalAddress The device to send the message to.
 282      * @return True if the POLL was acked, false otherwise.
 283      */
 284     virtual bool PollDevice(cec_logical_address iLogicalAddress) = 0;
 285
 286     /*!
 287      * @return The devices that are active on the bus and not handled by libcec.
 288      */
 289     virtual cec_logical_addresses GetActiveDevices(void) = 0;
 290
 291     /*!
 292      * @brief Check whether a device is active on the bus.
 293      * @param iLogicalAddress The address to check.
 294      * @return True when active, false otherwise.
 295      */
 296     virtual bool IsActiveDevice(cec_logical_address iLogicalAddress) = 0;
 297
 298     /*!
 299      * @brief Check whether a device of the given type is active on the bus.
 300      * @param type The type to check.
 301      * @return True when active, false otherwise.
 302      */
 303     virtual bool IsActiveDeviceType(cec_device_type type) = 0;
 304
 305     /*!
 306      * @brief Sends a volume up keypress to an audiosystem if it's present.
 307      * @param bSendRelease Send a key release after the keypress.
 308      * @return The new audio status.
 309      */
 310     virtual uint8_t VolumeUp(bool bSendRelease = true) = 0;
 311
 312     /*!
 313      * @brief Sends a volume down keypress to an audiosystem if it's present.
 314      * @param bSendRelease Send a key release after the keypress.
 315      * @return The new audio status.
 316      */
 317     virtual uint8_t VolumeDown(bool bSendRelease = true) = 0;
 318
 319     /*!
 320      * @brief Sends a mute keypress to an audiosystem if it's present.
 321      * @param bSendRelease Send a key release after the keypress.
 322      * @return The new audio status.
 323      */
 324     virtual uint8_t MuteAudio(bool bSendRelease = true) = 0;
 325
 326     /*!
 327      * @brief Send a keypress to a device on the CEC bus.
 328      * @param iDestination The address to send the message to.
 329      * @param key The key to send.
 330      * @param bWait True to wait for a response, false otherwise.
 331      * @return True when the keypress was acked, false otherwise.
 332      */
 333     virtual bool SendKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait = false) = 0;
 334
 335     /*!
 336      * @brief Send a key release to a device on the CEC bus.
 337      * @param iDestination The address to send the message to.
 338      * @param bWait True to wait for a response, false otherwise.
 339      * @return True when the keypress was acked, false otherwise.
 340      */
 341     virtual bool SendKeyRelease(cec_logical_address iDestination, bool bWait = false) = 0;
 342
 343     /*!
 344      * @brief Get the OSD name of a device on the CEC bus.
 345      * @param iLogicalAddress The device to get the OSD name for.
 346      * @return The OSD name.
 347      */
 348     virtual cec_osd_name GetDeviceOSDName(cec_logical_address iLogicalAddress) = 0;
 349
 350     /*!
 351      * @brief Get the logical address of the device that is currently the active source on the CEC bus.
 352      * @return The active source or CECDEVICE_UNKNOWN when unknown.
 353      */
 354     virtual cec_logical_address GetActiveSource(void) = 0;
 355
 356     /*!
 357      * @brief Check whether a device is currently the active source on the CEC bus.
 358      * @param iLogicalAddress The address to check.
 359      * @return True when it is the active source, false otherwise.
 360      */
 361     virtual bool IsActiveSource(cec_logical_address iLogicalAddress) = 0;
 362
 363     /*!
 364      * @brief Sets the stream path to the device on the given logical address.
 365      * @param iLogicalAddress The address to activate.
 366      * @return True when the command was sent, false otherwise.
 367      */
 368     virtual bool SetStreamPath(cec_logical_address iLogicalAddress) = 0;
 369
 370     /*!
 371      * @brief Sets the stream path to the device on the given logical address.
 372      * @param iPhysicalAddress The address to activate.
 373      * @return True when the command was sent, false otherwise.
 374      */
 375     virtual bool SetStreamPath(uint16_t iPhysicalAddress) = 0;
 376
 377     /*!
 378      * @return The list of addresses that libCEC is controlling
 379      */
 380     virtual cec_logical_addresses GetLogicalAddresses(void) = 0;
 381
 382     virtual const char *ToString(const cec_menu_state state) = 0;
 383     virtual const char *ToString(const cec_version version) = 0;
 384     virtual const char *ToString(const cec_power_status status) = 0;
 385     virtual const char *ToString(const cec_logical_address address) = 0;
 386     virtual const char *ToString(const cec_deck_control_mode mode) = 0;
 387     virtual const char *ToString(const cec_deck_info status) = 0;
 388     virtual const char *ToString(const cec_opcode opcode) = 0;
 389     virtual const char *ToString(const cec_system_audio_status mode) = 0;
 390     virtual const char *ToString(const cec_audio_status status) = 0;
 391     virtual const char *ToString(const cec_vendor_id vendor) = 0;
 392     virtual const char *ToString(const cec_client_version version) = 0;
 393     virtual const char *ToString(const cec_server_version version) = 0;
 394
 395     /*!
 396      * @brief Get libCEC's current configuration.
 397      * @param configuration The configuration.
 398      * @return True when the configuration was updated, false otherwise.
 399      */
 400     virtual bool GetCurrentConfiguration(libcec_configuration *configuration) = 0;
 401
 402     /*!
 403      * @brief Change libCEC's configuration.
 404      * @param configuration The new configuration.
 405      * @return True when the configuration was changed successfully, false otherwise.
 406      */
 407     virtual bool SetConfiguration(const libcec_configuration *configuration) = 0;
 408
 409     /*!
 410      * @return True when this device can persist the user configuration, false otherwise.
 411      */
 412     virtual bool CanPersistConfiguration(void) = 0;
 413
 414     /*!
 415      * @brief Persist the given configuration in adapter (if supported)
 416      * @brief The configuration to store.
 417      * @return True when the configuration was persisted, false otherwise.
 418      */
 419     virtual bool PersistConfiguration(libcec_configuration *configuration) = 0;
 420
 421     /*!
 422      * @brief Tell libCEC to poll for active devices on the bus.
 423      */
 424     virtual void RescanActiveDevices(void) = 0;
 425
 426     /*!
 427      * @return true when libCEC is the active source on the bus, false otherwise.
 428      */
 429     virtual bool IsLibCECActiveSource(void) = 0;
 430
 431     /*!
 432      * @brief Get information about the given device
 433      * @param strPort The port to which the device is connected
 434      * @param config The device configuration
 435      * @param iTimeoutMs The timeout in milliseconds
 436      * @return True when the device was found, false otherwise
 437      */
 438     virtual bool GetDeviceInformation(const char *strPort, libcec_configuration *config, uint32_t iTimeoutMs = 10000) = 0;
 439   };
 440 };
 441
 442 /*!
 443  * @brief Load the CEC adapter library.
 444  * @param strDeviceName How to present this device to other devices.
 445  * @param deviceTypes The device types to use on the CEC bus.
 446  * @param iPhysicalAddress The physical address to assume on the bus. If set to 0, libCEC will try to autodetect the address, with the data provided via SetHDMIPort()
 447  * @return An instance of ICECAdapter or NULL on error.
 448  */
 449 extern "C" DECLSPEC void * CECInit(const char *strDeviceName, CEC::cec_device_type_list deviceTypes, uint16_t iPhysicalAddress = 0);
 450
 451 /*!
 452  * @brief Load the CEC adapter library.
 453  * @param configuration The configuration to pass to libCEC
 454  * @return An instance of ICECAdapter or NULL on error.
 455  */
 456 extern "C" DECLSPEC void * CECInitialise(CEC::libcec_configuration *configuration);
 457
 458 /*!
 459  * @brief Try to connect to the adapter and send the "start bootloader" command, without initialising libCEC and going through all checks
 460  * @return True when the command was send, false otherwise.
 461  */
 462 extern "C" DECLSPEC bool CECStartBootloader(void);
 463
 464 /*!
 465  * @brief Unload the CEC adapter library.
 466  */
 467 extern "C" DECLSPEC void CECDestroy(CEC::ICECAdapter *instance);
 468
 469 #endif /* CECEXPORTS_H_ */