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