cec: don't try to do anything before the processor thread has started
[deb_libcec.git] / include / cec.h
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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
39namespace 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 bSendRelease Send a key release after the keypress.
290 * @return The new audio status.
291 */
292 virtual uint8_t VolumeUp(bool bSendRelease = true) = 0;
293
294 /*!
295 * @brief Sends a volume down 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 VolumeDown(bool bSendRelease = true) = 0;
300
301 /*!
302 * @brief Sends a mute 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 MuteAudio(bool bSendRelease = 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 */
365extern "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 */
375extern "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 */
380extern "C" DECLSPEC void CECDestroy(CEC::ICECAdapter *instance);
381
382#endif /* CECEXPORTS_H_ */