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 Set and enable the callback methods. If this method is not called, the GetNext...() methods will have to be used.
  63      * @param callbacks The callbacks to set.
  64      * @return True when enabled, false otherwise.
  65      */
  66     virtual bool EnableCallbacks(ICECCallbacks *callbacks) = 0;
  67
  68     /*!
  69      * @brief Try to find all connected CEC adapters. Only implemented on Linux and Windows at the moment.
  70      * @param deviceList The vector to store device descriptors in.
  71      * @param iBufSize The size of the deviceList buffer.
  72      * @param strDevicePath Optional device path. Only adds device descriptors that match the given device path.
  73      * @return The number of devices that were found, or -1 when an error occured.
  74      */
  75     virtual int8_t FindAdapters(cec_adapter *deviceList, uint8_t iBufSize, const char *strDevicePath = NULL) = 0;
  76
  77     /*!
  78      * @brief Ping the CEC adapter.
  79      * @return True when the ping was succesful, false otherwise.
  80      */
  81     virtual bool PingAdapter(void) = 0;
  82
  83     /*!
  84      * @brief Start the bootloader of the CEC adapter.
  85      * @return True when the command was sent succesfully, false otherwise.
  86      */
  87     virtual bool StartBootloader(void) = 0;
  88     //@}
  89
  90     /*!
  91      * @return Get the minimal version of libcec that this version of libcec can interface with.
  92      */
  93     virtual int8_t GetMinLibVersion(void) const = 0;
  94
  95     /*!
  96      * @return Get the major version of libcec.
  97      */
  98     virtual int8_t GetLibVersionMajor(void) const = 0;
  99
 100     /*!
 101      * @return Get the minor version of libcec.
 102      */
 103     virtual int8_t GetLibVersionMinor(void) const = 0;
 104
 105     /*!
 106      * @brief Get the next log message in the queue, if there is one.
 107      * @param message The next message.
 108      * @return True if a message was passed, false otherwise.
 109      */
 110     virtual bool GetNextLogMessage(cec_log_message *message) = 0;
 111
 112     /*!
 113      * @brief Get the next keypress in the queue, if there is one.
 114      * @param key The next keypress.
 115      * @return True if a key was passed, false otherwise.
 116      */
 117     virtual bool GetNextKeypress(cec_keypress *key) = 0;
 118
 119     /*!
 120      * @brief Get the next CEC command that was received by the adapter.
 121      * @param action The next command.
 122      * @return True when a command was passed, false otherwise.
 123      */
 124     virtual bool GetNextCommand(cec_command *command) = 0;
 125
 126     /*!
 127      * @brief Transmit a command over the CEC line.
 128      * @param data The command to send.
 129      * @return True when the data was sent and acked, false otherwise.
 130      */
 131     virtual bool Transmit(const cec_command &data) = 0;
 132
 133     /*!
 134      * @brief Change the logical address of the CEC adapter.
 135      * @param iLogicalAddress The CEC adapter's new logical address.
 136      * @return True when the logical address was set successfully, false otherwise.
 137      */
 138     virtual bool SetLogicalAddress(cec_logical_address iLogicalAddress = CECDEVICE_PLAYBACKDEVICE1) = 0;
 139
 140     /*!
 141      * @brief Change the physical address (HDMI port) of the CEC adapter.
 142      * @param iPhysicalAddress The CEC adapter's new physical address.
 143      * @brief True when the physical address was set successfully, false otherwise.
 144      */
 145     virtual bool SetPhysicalAddress(uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS) = 0;
 146
 147     /*!
 148      * @brief Enable physical address detection (if the connected adapter supports this).
 149      * @return True when physical address detection was enabled, false otherwise.
 150      */
 151     virtual bool EnablePhysicalAddressDetection(void) = 0;
 152
 153     /*!
 154      * @brief Changes the active HDMI port.
 155      * @param iBaseDevice The device to which this libcec is connected.
 156      * @param iPort The new port number.
 157      * @return True when changed, false otherwise.
 158      */
 159     virtual bool SetHDMIPort(cec_logical_address iBaseDevice, uint8_t iPort) = 0;
 160
 161     /*!
 162      * @brief Power on the connected CEC capable devices.
 163      * @param address The logical address to power on.
 164      * @return True when the command was sent succesfully, false otherwise.
 165      */
 166     virtual bool PowerOnDevices(cec_logical_address address = CECDEVICE_TV) = 0;
 167
 168     /*!
 169      * @brief Put connected CEC capable devices in standby mode.
 170      * @brief address The logical address of the device to put in standby.
 171      * @return True when the command was sent succesfully, false otherwise.
 172      */
 173     virtual bool StandbyDevices(cec_logical_address address = CECDEVICE_BROADCAST) = 0;
 174
 175     /*!
 176      * @brief Change the active source.
 177      * @param type The new active source. Leave empty to use the primary type
 178      * @return True when the command was sent succesfully, false otherwise.
 179      */
 180     virtual bool SetActiveSource(cec_device_type type = CEC_DEVICE_TYPE_RESERVED) = 0;
 181
 182     /*!
 183      * @deprecated Use SetActiveSource() instead
 184      */
 185     virtual bool SetActiveView(void) = 0;
 186
 187     /*!
 188      * @brief Change the deck control mode, if this adapter is registered as playback device.
 189      * @param mode The new control mode.
 190      * @param bSendUpdate True to send the status over the CEC line.
 191      * @return True if set, false otherwise.
 192      */
 193     virtual bool SetDeckControlMode(cec_deck_control_mode mode, bool bSendUpdate = true) = 0;
 194
 195     /*!
 196      * @brief Change the deck info, if this adapter is a playback device.
 197      * @param info The new deck info.
 198      * @return True if set, false otherwise.
 199      */
 200     virtual bool SetDeckInfo(cec_deck_info info, bool bSendUpdate = true) = 0;
 201
 202     /*!
 203      * @brief Broadcast a message that notifies connected CEC capable devices that this device is no longer the active source.
 204      * @return True when the command was sent succesfully, false otherwise.
 205      */
 206     virtual bool SetInactiveView(void) = 0;
 207
 208     /*!
 209      * @brief Change the menu state.
 210      * @param state The new true.
 211      * @param bSendUpdate True to send the status over the CEC line.
 212      * @return True if set, false otherwise.
 213      */
 214     virtual bool SetMenuState(cec_menu_state state, bool bSendUpdate = true) = 0;
 215
 216     /*!
 217      * @brief Display a message on the device with the given logical address.
 218      * @param iLogicalAddres The device to display the message on.
 219      * @param duration The duration of the message
 220      * @param strMessage The message to display.
 221      * @return True when the command was sent, false otherwise.
 222      */
 223     virtual bool SetOSDString(cec_logical_address iLogicalAddress, cec_display_control duration, const char *strMessage) = 0;
 224
 225     /*!
 226      * @brief Enable or disable monitoring mode.
 227      * @param bEnable True to enable, false to disable.
 228      * @return True when switched successfully, false otherwise.
 229      */
 230     virtual bool SwitchMonitoring(bool bEnable) = 0;
 231
 232     /*!
 233      * @brief Get the CEC version of the device with the given logical address
 234      * @param iLogicalAddress The device to get the CEC version for.
 235      * @return The version or CEC_VERSION_UNKNOWN when the version couldn't be fetched.
 236      */
 237     virtual cec_version GetDeviceCecVersion(cec_logical_address iAddress) = 0;
 238
 239     /*!
 240      * @brief Get the menu language of the device with the given logical address
 241      * @param iLogicalAddress The device to get the menu language for.
 242      * @param language The requested menu language.
 243      * @return True when fetched succesfully, false otherwise.
 244      */
 245     virtual bool GetDeviceMenuLanguage(cec_logical_address iAddress, cec_menu_language *language) = 0;
 246
 247     /*!
 248      * @brief Get the vendor ID of the device with the given logical address.
 249      * @param iLogicalAddress The device to get the vendor id for.
 250      * @return The vendor ID or 0 if it wasn't found.
 251      */
 252     virtual uint64_t GetDeviceVendorId(cec_logical_address iAddress) = 0;
 253
 254     /*!
 255      * @brief Get the power status of the device with the given logical address.
 256      * @param iLogicalAddress The device to get the power status for.
 257      * @return The power status or CEC_POWER_STATUS_UNKNOWN if it wasn't found.
 258      */
 259     virtual cec_power_status GetDevicePowerStatus(cec_logical_address iAddress) = 0;
 260
 261     /*!
 262      * @brief Get the physical address of the device with the given logical address.
 263      * @param iLogicalAddress The device to get the vendor id for.
 264      * @return The physical address or 0 if it wasn't found.
 265      */
 266     virtual uint16_t GetDevicePhysicalAddress(cec_logical_address iAddress) = 0;
 267
 268     /*!
 269      * @brief Sends a POLL message to a device.
 270      * @param iAddress The device to send the message to.
 271      * @return True if the POLL was acked, false otherwise.
 272      */
 273     virtual bool PollDevice(cec_logical_address iAddress) = 0;
 274
 275     /*!
 276      * @return The devices that are active on the bus and not handled by libcec.
 277      */
 278     virtual cec_logical_addresses GetActiveDevices(void) = 0;
 279
 280     /*!
 281      * @brief Check whether a device is active on the bus.
 282      * @param iAddress The address to check.
 283      * @return True when active, false otherwise.
 284      */
 285     virtual bool IsActiveDevice(cec_logical_address iAddress) = 0;
 286
 287     /*!
 288      * @brief Check whether a device of the given type is active on the bus.
 289      * @param type The type to check.
 290      * @return True when active, false otherwise.
 291      */
 292     virtual bool IsActiveDeviceType(cec_device_type type) = 0;
 293
 294     /*!
 295      * @brief Sends a volume up keypress to an audiosystem if it's present.
 296      * @param bSendRelease Send a key release after the keypress.
 297      * @return The new audio status.
 298      */
 299     virtual uint8_t VolumeUp(bool bSendRelease = true) = 0;
 300
 301     /*!
 302      * @brief Sends a volume down keypress to an audiosystem if it's present.
 303      * @param bSendRelease Send a key release after the keypress.
 304      * @return The new audio status.
 305      */
 306     virtual uint8_t VolumeDown(bool bSendRelease = true) = 0;
 307
 308     /*!
 309      * @brief Sends a mute keypress to an audiosystem if it's present.
 310      * @param bSendRelease Send a key release after the keypress.
 311      * @return The new audio status.
 312      */
 313     virtual uint8_t MuteAudio(bool bSendRelease = true) = 0;
 314
 315     /*!
 316      * @brief Send a keypress to a device on the CEC bus.
 317      * @param iDestination The address to send the message to.
 318      * @param key The key to send.
 319      * @param bWait True to wait for a response, false otherwise.
 320      * @return True when the keypress was acked, false otherwise.
 321      */
 322     virtual bool SendKeypress(cec_logical_address iDestination, cec_user_control_code key, bool bWait = false) = 0;
 323
 324     /*!
 325      * @brief Send a key release to a device on the CEC bus.
 326      * @param iDestination The address to send the message to.
 327      * @param bWait True to wait for a response, false otherwise.
 328      * @return True when the keypress was acked, false otherwise.
 329      */
 330     virtual bool SendKeyRelease(cec_logical_address iDestination, bool bWait = false) = 0;
 331
 332     /*!
 333      * @brief Get the OSD name of a device on the CEC bus.
 334      * @param iAddress The device to get the OSD name for.
 335      * @return The OSD name.
 336      */
 337     virtual cec_osd_name GetDeviceOSDName(cec_logical_address iAddress) = 0;
 338
 339     /*!
 340      * @brief Get the logical address of the device that is currently the active source on the CEC bus.
 341      * @return The active source or CECDEVICE_UNKNOWN when unknown.
 342      */
 343     virtual cec_logical_address GetActiveSource(void) = 0;
 344
 345     /*!
 346      * @brief Check whether a device is currently the active source on the CEC bus.
 347      * @param iAddress The address to check.
 348      * @return True when it is the active source, false otherwise.
 349      */
 350     virtual bool IsActiveSource(cec_logical_address iAddress) = 0;
 351
 352     virtual const char *ToString(const cec_menu_state state) = 0;
 353     virtual const char *ToString(const cec_version version) = 0;
 354     virtual const char *ToString(const cec_power_status status) = 0;
 355     virtual const char *ToString(const cec_logical_address address) = 0;
 356     virtual const char *ToString(const cec_deck_control_mode mode) = 0;
 357     virtual const char *ToString(const cec_deck_info status) = 0;
 358     virtual const char *ToString(const cec_opcode opcode) = 0;
 359     virtual const char *ToString(const cec_system_audio_status mode) = 0;
 360     virtual const char *ToString(const cec_audio_status status) = 0;
 361     virtual const char *ToString(const cec_vendor_id vendor) = 0;
 362   };
 363 };
 364
 365 /*!
 366  * @brief Load the CEC adapter library.
 367  * @param strDeviceName How to present this device to other devices.
 368  * @param deviceTypes The device types to use on the CEC bus.
 369  * @return An instance of ICECAdapter or NULL on error.
 370  */
 371 extern "C" DECLSPEC void * CECInit(const char *strDeviceName, CEC::cec_device_type_list devicesTypes);
 372
 373 /*!
 374  * @deprecated Please use CECInit() instead
 375  * @brief Load the CEC adapter library.
 376  * @param strDeviceName How to present this device to other devices.
 377  * @param iLogicalAddress The logical of this device. PLAYBACKDEVICE1 by default.
 378  * @param iPhysicalAddress The physical address of this device. 0x1000 by default.
 379  * @return An instance of ICECAdapter or NULL on error.
 380  */
 381 extern "C" DECLSPEC void * CECCreate(const char *strDeviceName, CEC::cec_logical_address iLogicalAddress = CEC::CECDEVICE_PLAYBACKDEVICE1, uint16_t iPhysicalAddress = CEC_DEFAULT_PHYSICAL_ADDRESS);
 382
 383 /*!
 384  * @brief Unload the CEC adapter library.
 385  */
 386 extern "C" DECLSPEC void CECDestroy(CEC::ICECAdapter *instance);
 387
 388 #endif /* CECEXPORTS_H_ */