1 /**************************************************************************
5 * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
7 * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
8 * JinYoung Jeon <jy0.jeon@samsung.com>,
9 * Taeheon Kim <th908.kim@samsung.com>,
10 * YoungJun Cho <yj44.cho@samsung.com>,
11 * SooChan Lim <sc1.lim@samsung.com>,
12 * Boram Park <boram1288.park@samsung.com>
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34 **************************************************************************/
36 #ifndef _TDM_CLIENT_H_
37 #define _TDM_CLIENT_H_
39 #include "tdm_client_types.h"
47 * @brief The header file for a client of TDM.
50 * #include <tdm_client.h> //for a client of TDM
55 * @brief Create a TDM client object.
56 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
57 * @return A TDM client object if success. Otherwise, NULL.
58 * @see #tdm_client_destroy
61 tdm_client_create(tdm_error *error);
64 * @brief Destroy a TDM client object
65 * @param[in] client A TDM client object
66 * @see #tdm_client_create
69 tdm_client_destroy(tdm_client *client);
72 * @brief Get the file descriptor
73 * @param[in] client A TDM client object
74 * @param[out] fd The file descriptor
75 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
76 * @see #tdm_client_handle_events
79 * #include <tdm_client.h> //for a client of TDM
81 * err = tdm_client_get_fd(client, &fd);
82 * if (err != TDM_ERROR_NONE) {
86 * fds.events = POLLIN;
91 * ret = poll(&fds, 1, -1);
93 * if (errno == EINTR || errno == EAGAIN)
100 * err = tdm_client_handle_events(client);
101 * if (err != TDM_ERROR_NONE) {
108 tdm_client_get_fd(tdm_client *client, int *fd);
111 * @brief Handle the events of the given file descriptor
112 * @param[in] client A TDM client object
113 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
114 * @see #tdm_client_get_fd
117 tdm_client_handle_events(tdm_client *client);
120 * @brief Handle the events of the given file descriptor with millisecond timeout
122 * -1: infinite. 0: return immediately. Otherwise, waiting for ms_timeout milliseconds.
123 * @param[in] client A TDM client object
124 * @param[in] ms_timeout timeout value.
125 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
126 * @see #tdm_client_get_fd
129 tdm_client_handle_events_timeout(tdm_client *client, int ms_timeout);
132 * @brief Handle the pending events of the given tdm_client
133 * @param[in] client A TDM client object
134 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
135 * @see #tdm_client_get_fd
138 tdm_client_handle_pending_events(tdm_client *client);
141 * @brief @b Deprecated. Wait for VBLANK.
143 * @details After interval vblanks, a client vblank handler will be called.
144 * If 'sw_timer' param is 1 in case of DPMS off, TDM will use the SW timer and
145 * call a client vblank handler. Otherwise, this function will return error.
146 * @param[in] client A TDM client object
147 * @param[in] name The name of a TDM output
148 * @param[in] sw_timer 0: not using SW timer, 1: using SW timer
149 * @param[in] interval vblank interval
150 * @param[in] sync 0: asynchronous, 1:synchronous
151 * @param[in] func A client vblank handler
152 * @param[in] user_data The user data
153 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
154 * @see #tdm_client_vblank_handler
157 tdm_client_wait_vblank(tdm_client *client, char *name,
158 int sw_timer, int interval, int sync,
159 tdm_client_vblank_handler2 func, void *user_data);
162 * @brief Get the client output object which has the given name.
164 * The client output name can be @b 'primary' or @b 'default' to get the main output.
165 * @param[in] client The TDM client object
166 * @param[in] name The name of the TDM client output object
167 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
168 * @return A client output object if success. Otherwise, NULL.
171 tdm_client_get_output(tdm_client *client, char *name, tdm_error *error);
174 * @brief Add the client output change handler
175 * @details The handler will be called when the status of a
176 * client output object is changed. connection, DPMS, etc.
177 * @param[in] output The client output object
178 * @param[in] func The client output change handler
179 * @param[in] user_data The user data
180 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
183 * #include <tdm_client.h> //for a client of TDM
186 * _client_output_handler(tdm_client_output *output, tdm_output_change_type type,
187 * tdm_value value, void *user_data)
189 * char *conn_str[3] = {"disconnected", "connected", "mode_setted"};
190 * char *dpms_str[4] = {"on", "standy", "suspend", "off"};
192 * if (type == TDM_OUTPUT_CHANGE_CONNECTION)
193 * printf("output %s.\n", conn_str[value.u32]);
194 * else if (type == TDM_OUTPUT_CHANGE_DPMS)
195 * printf("dpms %s.\n", dpms_str[value.u32]);
198 * tdm_client_output_add_change_handler(output, _client_output_handler, NULL);
200 * tdm_client_output_remove_change_handler(output, _client_output_handler, NULL);
205 tdm_client_output_add_change_handler(tdm_client_output *output,
206 tdm_client_output_change_handler func,
210 * @brief Remove the client output change handler
211 * @param[in] output The client output object
212 * @param[in] func The client output change handler
213 * @param[in] user_data The user data
214 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
217 tdm_client_output_remove_change_handler(tdm_client_output *output,
218 tdm_client_output_change_handler func,
222 * @brief Get the vertical refresh rate of the given client output
223 * @param[in] output The client output object
224 * @param[out] refresh The refresh rate
225 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
228 tdm_client_output_get_refresh_rate(tdm_client_output *output, unsigned int *refresh);
231 * @brief Get the width and height of the given client output mode
232 * @param[in] output The client output object
233 * @param[out] width The width of output mode
234 * @param[out] height The height of output mode
235 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
238 tdm_client_output_get_mode(tdm_client_output *output, unsigned int *width, unsigned int *height);
241 * @brief Get the connection status of the given client output
242 * @param[in] output The client output object
243 * @param[out] status The connection status
244 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
247 tdm_client_output_get_conn_status(tdm_client_output *output, tdm_output_conn_status *status);
250 * @brief Get the DPMS value of the given client output
251 * @param[in] output The client output object
252 * @param[out] dpms The DPMS value
253 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
256 tdm_client_output_get_dpms(tdm_client_output *output, tdm_output_dpms *dpms);
259 * @brief Create the client vblank object of the given client output
261 * tdm client vblank basically uses the HW vblank resource. Therefore, if HW vblank
262 * is not available for some reasons, such as output disconnection and dpms off,
263 * #tdm_client_vblank_wait will return error. If you want it to work propery in spite
264 * of these reasons, you can use #tdm_client_vblank_set_enable_fake to get SW fake
266 * @param[in] output The client output object
267 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
268 * @return A client vblank object if success. Otherwise, NULL.
271 tdm_client_output_create_vblank(tdm_client_output *output, tdm_error *error);
274 * @brief Destroy the client vblank object
275 * @param[in] vblank The client vblank object
278 tdm_client_vblank_destroy(tdm_client_vblank *vblank);
281 * @brief Set the name to the client vblank object
282 * @param[in] vblank The client vblank object
283 * @param[in] name The client vblank name
284 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
287 tdm_client_vblank_set_name(tdm_client_vblank *vblank, const char *name);
290 * @brief Set the sync value to the client vblank object
292 * If sync == 1, the user client vblank handler of #tdm_client_vblank_wait
293 * will be called before #tdm_client_vblank_wait returns the result. If sync == 0,
294 * the user client vblank handler of #tdm_client_vblank_wait will be called
295 * asynchronously after #tdm_client_vblank_wait returns. Default is @b asynchronous.
296 * @param[in] vblank The client vblank object
297 * @param[in] sync 0: asynchronous, 1:synchronous
298 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
301 tdm_client_vblank_set_sync(tdm_client_vblank *vblank, unsigned int sync);
304 * @brief Set the fps to the client vblank object
305 * @details Default is the @b vertical @b refresh @b rate of the given client output.
306 * @param[in] vblank The client vblank object
307 * @param[in] fps more than 0
308 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
311 tdm_client_vblank_set_fps(tdm_client_vblank *vblank, unsigned int fps);
314 * @brief Set the offset(milli-second) to the client vblank object
315 * @details Default is @b 0.
316 * @param[in] vblank The client vblank object
317 * @param[in] offset_ms the offset(milli-second)
318 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
321 tdm_client_vblank_set_offset(tdm_client_vblank *vblank, int offset_ms);
324 * @brief Enable/Disable the fake vblank to the client vblank object
326 * If enable_fake == 0, #tdm_client_vblank_wait will return error when HW vblank is
327 * not available. Otherwise, #tdm_client_vblank_wait will return TDM_ERROR_NONE
328 * as success. Once #tdm_client_vblank_wait returns TDM_ERROR_NONE, the user client
329 * vblank handler(#tdm_client_vblank_handler) SHOULD be called after the given
330 * interval of #tdm_client_vblank_wait. Default is @b disable.
331 * @param[in] vblank The client vblank object
332 * @param[in] enable_fake 1:enable, 0:disable
333 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
336 tdm_client_vblank_set_enable_fake(tdm_client_vblank *vblank, unsigned int enable_fake);
339 * @brief Wait for a vblank
341 * This function will return error when HW vblank resource is not available. However,
342 * #tdm_client_vblank_wait will return TDM_ERROR_NONE as success if
343 * #tdm_client_vblank_set_enable_fake sets true. Once #tdm_client_vblank_wait
344 * returns TDM_ERROR_NONE, the user client vblank handler(#tdm_client_vblank_handler)
345 * SHOULD be called after the given interval. \n
346 * The sequence value of tdm_client_vblank_handler is the relative value of fps.
347 * If fps = 10, this sequence value should be increased by 10 during 1 second.
348 * @param[in] vblank The client vblank object
349 * @param[in] interval The vblank interval
350 * @param[in] func The user client vblank handler
351 * @param[in] user_data The user data
352 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
355 * #include <tdm_client.h> //for a client of TDM
358 * _client_vblank_handler(tdm_client_vblank *vblank, tdm_error error, unsigned int sequence,
359 * unsigned int tv_sec, unsigned int tv_usec, void *user_data)
361 * if (error != TDM_ERROR_NONE)
366 * tdm_client_output *output;
367 * tdm_client_vblank *vblank;
372 * cliet = tdm_client_create(&error);
373 * if (error != TDM_ERROR_NONE)
376 * output = tdm_client_get_output(client, NULL, &error);
377 * if (error != TDM_ERROR_NONE)
380 * vblank = tdm_client_output_create_vblank(output, &error);
381 * if (error != TDM_ERROR_NONE)
384 * tdm_client_vblank_set_enable_fake(vblank, enable_fake); //default: disable
385 * tdm_client_vblank_set_sync(vblank, 0); //default: async
386 * tdm_client_vblank_set_fps(vblank, fps); //default: refresh rate of output
387 * tdm_client_vblank_set_offset(vblank, offset); //default: 0
389 * error = tdm_client_get_fd(data->client, &fd);
390 * if (error != TDM_ERROR_NONE)
393 * fds.events = POLLIN;
400 * error = tdm_client_vblank_wait(vblank, interval,
401 * _client_vblank_handler, NULL);
402 * if (error != TDM_ERROR_NONE)
405 * ret = poll(&fds, 1, -1);
407 * if (errno == EINTR || errno == EAGAIN) // normal case
413 * error = tdm_client_handle_events(client);
414 * if (error != TDM_ERROR_NONE)
418 * tdm_client_vblank_destroy(vblank);
419 * tdm_client_destroy(client);
424 tdm_client_vblank_wait(tdm_client_vblank *vblank, unsigned int interval, tdm_client_vblank_handler func, void *user_data);
427 * @brief Wait for a vblank with the target sequence number
429 * This function will return error when HW vblank resource is not available. However,
430 * #tdm_client_vblank_wait will return TDM_ERROR_NONE as success if
431 * #tdm_client_vblank_set_enable_fake sets true. Once #tdm_client_vblank_wait_seq
432 * returns TDM_ERROR_NONE, the user client vblank handler(#tdm_client_vblank_handler)
433 * SHOULD be called on reaching the target sequence.
434 * @param[in] vblank The client vblank object
435 * @param[in] sequence The target sequence number
436 * @param[in] func The user client vblank handler
437 * @param[in] user_data The user data
438 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
441 tdm_client_vblank_wait_seq(tdm_client_vblank *vblank, unsigned int sequence, tdm_client_vblank_handler func, void *user_data);
444 * @brief Check if the client vblank object is waiting a vblank event
445 * @param[in] vblank The client vblank object
446 * @return 1 if waiting. 0 if not waiting.
449 tdm_client_vblank_is_waiting(tdm_client_vblank *vblank);
453 * @brief Create the client voutput object which has the given name
454 * @param[in] client The TDM client object
455 * @param[in] name The name of the TDM client virtual output object
456 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
457 * @return A client voutput object if success. Otherwise, NULL.
460 tdm_client_create_voutput(tdm_client *client, const char *name, tdm_error *error);
463 * @brief Destroy the client voutput object
464 * @param[in] voutput The client voutput object
467 tdm_client_voutput_destroy(tdm_client_voutput *voutput);
470 * @brief Set the available mode info to the client voutput object
471 * @param[in] voutput The client voutput object
472 * @param[in] modes The array of available mode info
473 * @param[in] count The mode count
474 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
477 tdm_client_voutput_set_available_modes(tdm_client_voutput *voutput, const tdm_client_output_mode *modes, int count);
480 * @brief Set the physical size info to the client voutput object
481 * @param[in] voutput The client voutput object
482 * @param[in] mmWidth The width of voutput
483 * @param[in] mmHeight The height of voutput
484 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
487 tdm_client_voutput_set_physical_size(tdm_client_voutput *voutput, unsigned int mmWidth, unsigned int mmHeight);
490 * @brief Set the client voutput buffer commit handler
491 * @details The handler will be called when server send buffer.
492 * Client can get the committed buffer in the handler function.
493 * @param[in] voutput The client voutput object
494 * @param[in] func The user client voutput buffer commit handler
495 * @param[in] user_data The user_data
496 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
499 tdm_client_voutput_add_commit_handler(tdm_client_voutput *voutput, tdm_client_voutput_commit_handler func, void *user_data);
502 * @brief Remove the client voutput buffer commit handler
503 * @param[in] voutput The client voutput object
504 * @param[in] func The user client voutput buffer commit handler
505 * @param[in] user_data The user_data
508 tdm_client_voutput_remove_commit_handler(tdm_client_voutput *voutput, tdm_client_voutput_commit_handler func, void *user_data);
511 * @brief Send the commit done event to server
513 * After using the commited buffer which is get from commit handler
514 * have to send done event to server.
515 * @param[in] voutput The client voutput object
516 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
519 tdm_client_voutput_commit_done(tdm_client_voutput *voutput);
522 * @brief Get the client output object which was created by the given voutput object
524 * The client output object is made by voutput object.
525 * @param[in] voutput The client voutput object
526 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
527 * @return A client output object if success. Otherwise, NULL.
530 tdm_client_voutput_get_client_output(tdm_client_voutput *voutput, tdm_error *error);
533 * @brief Set the mode to the client voutput object
535 * The client can set the mode of voutput object by send mode index.
536 * the index is the array number of available modes info.
537 * @param[in] voutput The client voutput object
538 * @param[in] modes The array of available mode info
539 * @param[in] index The index of avaliable modes
540 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
543 tdm_client_voutput_set_mode(tdm_client_voutput *voutput, int index);
546 * @brief Set the client voutput object connected status
547 * @detail Send availabe_modes, physical size and connect info to the server.
548 * @param[in] voutput The client voutput object
549 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
552 tdm_client_voutput_connect(tdm_client_voutput *voutput);
555 * @brief Set the client voutput object disconnected status
556 * @param[in] voutput The client voutput object
557 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
560 tdm_client_voutput_disconnect(tdm_client_voutput *voutput);
566 #endif /* _TDM_CLIENT_H_ */