1 /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer in the documentation and/or other materials provided 11 * with the distribution. 12 * * Neither the name of The Linux Foundation nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef __MM_CAMERA_H__ 31 #define __MM_CAMERA_H__ 32 33 #include <cam_semaphore.h> 34 35 #include "mm_camera_interface.h" 36 37 /********************************************************************************** 38 * Data structure declare 39 ***********************************************************************************/ 40 /* num of callbacks allowed for an event type */ 41 #define MM_CAMERA_EVT_ENTRY_MAX 4 42 /* num of data callbacks allowed in a stream obj */ 43 #define MM_CAMERA_STREAM_BUF_CB_MAX 4 44 /* num of data poll threads allowed in a channel obj */ 45 #define MM_CAMERA_CHANNEL_POLL_THREAD_MAX 1 46 47 #define MM_CAMERA_DEV_NAME_LEN 32 48 #define MM_CAMERA_DEV_OPEN_TRIES 2 49 #define MM_CAMERA_DEV_OPEN_RETRY_SLEEP 20 50 51 #ifndef TRUE 52 #define TRUE 1 53 #endif 54 55 #ifndef FALSE 56 #define FALSE 0 57 #endif 58 59 struct mm_channel; 60 struct mm_stream; 61 struct mm_camera_obj; 62 63 typedef enum 64 { 65 MM_CAMERA_CMD_TYPE_DATA_CB, /* dataB CMD */ 66 MM_CAMERA_CMD_TYPE_EVT_CB, /* evtCB CMD */ 67 MM_CAMERA_CMD_TYPE_EXIT, /* EXIT */ 68 MM_CAMERA_CMD_TYPE_REQ_DATA_CB,/* request data */ 69 MM_CAMERA_CMD_TYPE_SUPER_BUF_DATA_CB, /* superbuf dataB CMD */ 70 MM_CAMERA_CMD_TYPE_CONFIG_NOTIFY, /* configure notify mode */ 71 MM_CAMERA_CMD_TYPE_FLUSH_QUEUE, /* flush queue */ 72 MM_CAMERA_CMD_TYPE_MAX 73 } mm_camera_cmdcb_type_t; 74 75 typedef struct { 76 uint32_t stream_id; 77 uint32_t frame_idx; 78 mm_camera_buf_def_t *buf; /* ref to buf */ 79 } mm_camera_buf_info_t; 80 81 typedef struct { 82 uint32_t num_buf_requested; 83 } mm_camera_req_buf_t; 84 85 typedef struct { 86 mm_camera_cmdcb_type_t cmd_type; 87 union { 88 mm_camera_buf_info_t buf; /* frame buf if dataCB */ 89 mm_camera_event_t evt; /* evt if evtCB */ 90 mm_camera_super_buf_t superbuf; /* superbuf if superbuf dataCB*/ 91 mm_camera_req_buf_t req_buf; /* num of buf requested */ 92 uint32_t frame_idx; /* frame idx boundary for flush superbuf queue*/ 93 mm_camera_super_buf_notify_mode_t notify_mode; /* notification mode */ 94 } u; 95 } mm_camera_cmdcb_t; 96 97 typedef void (*mm_camera_cmd_cb_t)(mm_camera_cmdcb_t * cmd_cb, void* user_data); 98 99 typedef struct { 100 cam_queue_t cmd_queue; /* cmd queue (queuing dataCB, asyncCB, or exitCMD) */ 101 pthread_t cmd_pid; /* cmd thread ID */ 102 cam_semaphore_t cmd_sem; /* semaphore for cmd thread */ 103 mm_camera_cmd_cb_t cb; /* cb for cmd */ 104 void* user_data; /* user_data for cb */ 105 } mm_camera_cmd_thread_t; 106 107 typedef enum { 108 MM_CAMERA_POLL_TYPE_EVT, 109 MM_CAMERA_POLL_TYPE_DATA, 110 MM_CAMERA_POLL_TYPE_MAX 111 } mm_camera_poll_thread_type_t; 112 113 /* function ptr defined for poll notify CB, 114 * registered at poll thread with poll fd */ 115 typedef void (*mm_camera_poll_notify_t)(void *user_data); 116 117 typedef struct { 118 int32_t fd; 119 mm_camera_poll_notify_t notify_cb; 120 uint32_t handler; 121 void* user_data; 122 } mm_camera_poll_entry_t; 123 124 typedef struct { 125 mm_camera_poll_thread_type_t poll_type; 126 /* array to store poll fd and cb info 127 * for MM_CAMERA_POLL_TYPE_EVT, only index 0 is valid; 128 * for MM_CAMERA_POLL_TYPE_DATA, depends on valid stream fd */ 129 mm_camera_poll_entry_t poll_entries[MAX_STREAM_NUM_IN_BUNDLE]; 130 int32_t pfds[2]; 131 pthread_t pid; 132 int32_t state; 133 int timeoutms; 134 uint32_t cmd; 135 struct pollfd poll_fds[MAX_STREAM_NUM_IN_BUNDLE + 1]; 136 uint8_t num_fds; 137 pthread_mutex_t mutex; 138 pthread_cond_t cond_v; 139 int32_t status; 140 //void *my_obj; 141 } mm_camera_poll_thread_t; 142 143 /* mm_stream */ 144 typedef enum { 145 MM_STREAM_STATE_NOTUSED = 0, /* not used */ 146 MM_STREAM_STATE_INITED, /* inited */ 147 MM_STREAM_STATE_ACQUIRED, /* acquired, fd opened */ 148 MM_STREAM_STATE_CFG, /* fmt & dim configured */ 149 MM_STREAM_STATE_BUFFED, /* buf allocated */ 150 MM_STREAM_STATE_REG, /* buf regged, stream off */ 151 MM_STREAM_STATE_ACTIVE, /* active */ 152 MM_STREAM_STATE_MAX 153 } mm_stream_state_type_t; 154 155 typedef enum { 156 MM_STREAM_EVT_ACQUIRE, 157 MM_STREAM_EVT_RELEASE, 158 MM_STREAM_EVT_SET_FMT, 159 MM_STREAM_EVT_GET_BUF, 160 MM_STREAM_EVT_PUT_BUF, 161 MM_STREAM_EVT_REG_BUF, 162 MM_STREAM_EVT_UNREG_BUF, 163 MM_STREAM_EVT_START, 164 MM_STREAM_EVT_STOP, 165 MM_STREAM_EVT_QBUF, 166 MM_STREAM_EVT_SET_PARM, 167 MM_STREAM_EVT_GET_PARM, 168 MM_STREAM_EVT_DO_ACTION, 169 MM_STREAM_EVT_MAX 170 } mm_stream_evt_type_t; 171 172 typedef struct { 173 mm_camera_buf_notify_t cb; 174 void *user_data; 175 /* cb_count = -1: infinite 176 * cb_count > 0: register only for required times */ 177 int8_t cb_count; 178 } mm_stream_data_cb_t; 179 180 typedef struct { 181 /* buf reference count */ 182 uint8_t buf_refcnt; 183 184 /* This flag is to indicate if after allocation, 185 * the corresponding buf needs to qbuf into kernel 186 * (e.g. for preview usecase, display needs to hold two bufs, 187 * so no need to qbuf these two bufs initially) */ 188 uint8_t initial_reg_flag; 189 190 /* indicate if buf is in kernel(1) or client(0) */ 191 uint8_t in_kernel; 192 } mm_stream_buf_status_t; 193 194 typedef struct mm_stream { 195 uint32_t my_hdl; /* local stream id */ 196 uint32_t server_stream_id; /* stream id from server */ 197 int32_t fd; 198 mm_stream_state_type_t state; 199 200 /* stream info*/ 201 cam_stream_info_t *stream_info; 202 203 /* padding info */ 204 cam_padding_info_t padding_info; 205 206 /* offset */ 207 cam_frame_len_offset_t frame_offset; 208 209 mm_camera_cmd_thread_t cmd_thread; 210 211 /* dataCB registered on this stream obj */ 212 pthread_mutex_t cb_lock; /* cb lock to protect buf_cb */ 213 mm_stream_data_cb_t buf_cb[MM_CAMERA_STREAM_BUF_CB_MAX]; 214 215 /* stream buffer management */ 216 pthread_mutex_t buf_lock; 217 uint8_t buf_num; /* num of buffers allocated */ 218 mm_camera_buf_def_t* buf; /* ptr to buf array */ 219 mm_stream_buf_status_t* buf_status; /* ptr to buf status array */ 220 221 /* reference to parent channel_obj */ 222 struct mm_channel* ch_obj; 223 224 uint8_t is_bundled; /* flag if stream is bundled */ 225 226 mm_camera_stream_mem_vtbl_t mem_vtbl; /* mem ops tbl */ 227 228 int8_t queued_buffer_count; 229 } mm_stream_t; 230 231 /* mm_channel */ 232 typedef enum { 233 MM_CHANNEL_STATE_NOTUSED = 0, /* not used */ 234 MM_CHANNEL_STATE_STOPPED, /* stopped */ 235 MM_CHANNEL_STATE_ACTIVE, /* active, at least one stream active */ 236 MM_CHANNEL_STATE_PAUSED, /* paused */ 237 MM_CHANNEL_STATE_MAX 238 } mm_channel_state_type_t; 239 240 typedef enum { 241 MM_CHANNEL_EVT_ADD_STREAM, 242 MM_CHANNEL_EVT_DEL_STREAM, 243 MM_CHANNEL_EVT_CONFIG_STREAM, 244 MM_CHANNEL_EVT_GET_BUNDLE_INFO, 245 MM_CHANNEL_EVT_START, 246 MM_CHANNEL_EVT_STOP, 247 MM_CHANNEL_EVT_PAUSE, 248 MM_CHANNEL_EVT_RESUME, 249 MM_CHANNEL_EVT_REQUEST_SUPER_BUF, 250 MM_CHANNEL_EVT_CANCEL_REQUEST_SUPER_BUF, 251 MM_CHANNEL_EVT_FLUSH_SUPER_BUF_QUEUE, 252 MM_CHANNEL_EVT_CONFIG_NOTIFY_MODE, 253 MM_CHANNEL_EVT_MAP_STREAM_BUF, 254 MM_CHANNEL_EVT_UNMAP_STREAM_BUF, 255 MM_CHANNEL_EVT_SET_STREAM_PARM, 256 MM_CHANNEL_EVT_GET_STREAM_PARM, 257 MM_CHANNEL_EVT_DO_STREAM_ACTION, 258 MM_CHANNEL_EVT_DELETE, 259 } mm_channel_evt_type_t; 260 261 typedef struct { 262 uint32_t stream_id; 263 mm_camera_stream_config_t *config; 264 } mm_evt_paylod_config_stream_t; 265 266 typedef struct { 267 uint32_t stream_id; 268 cam_stream_parm_buffer_t *parms; 269 } mm_evt_paylod_set_get_stream_parms_t; 270 271 typedef struct { 272 uint32_t stream_id; 273 void *actions; 274 } mm_evt_paylod_do_stream_action_t; 275 276 typedef struct { 277 uint32_t stream_id; 278 uint8_t buf_type; 279 uint32_t buf_idx; 280 int32_t plane_idx; 281 int fd; 282 uint32_t size; 283 } mm_evt_paylod_map_stream_buf_t; 284 285 typedef struct { 286 uint32_t stream_id; 287 uint8_t buf_type; 288 uint32_t buf_idx; 289 int32_t plane_idx; 290 } mm_evt_paylod_unmap_stream_buf_t; 291 292 typedef struct { 293 uint8_t num_of_bufs; 294 mm_camera_buf_info_t super_buf[MAX_STREAM_NUM_IN_BUNDLE]; 295 uint8_t matched; 296 uint32_t frame_idx; 297 } mm_channel_queue_node_t; 298 299 typedef struct { 300 cam_queue_t que; 301 uint8_t num_streams; 302 /* container for bundled stream handlers */ 303 uint32_t bundled_streams[MAX_STREAM_NUM_IN_BUNDLE]; 304 mm_camera_channel_attr_t attr; 305 uint32_t expected_frame_id; 306 uint32_t match_cnt; 307 } mm_channel_queue_t; 308 309 typedef struct { 310 uint8_t is_active; /* flag to indicate if bundle is valid */ 311 /* queue to store bundled super buffers */ 312 mm_channel_queue_t superbuf_queue; 313 mm_camera_buf_notify_t super_buf_notify_cb; 314 void *user_data; 315 } mm_channel_bundle_t; 316 317 typedef struct mm_channel { 318 uint32_t my_hdl; 319 mm_channel_state_type_t state; 320 pthread_mutex_t ch_lock; /* channel lock */ 321 322 /* stream bundle info in the channel */ 323 mm_channel_bundle_t bundle; 324 325 /* num of pending suferbuffers */ 326 uint32_t pending_cnt; 327 328 /* cmd thread for superbuffer dataCB and async stop*/ 329 mm_camera_cmd_thread_t cmd_thread; 330 331 /* cb thread for sending data cb */ 332 mm_camera_cmd_thread_t cb_thread; 333 334 /* data poll thread 335 * currently one data poll thread per channel 336 * could extended to support one data poll thread per stream in the channel */ 337 mm_camera_poll_thread_t poll_thread[MM_CAMERA_CHANNEL_POLL_THREAD_MAX]; 338 339 /* container for all streams in channel */ 340 mm_stream_t streams[MAX_STREAM_NUM_IN_BUNDLE]; 341 342 /* reference to parent cam_obj */ 343 struct mm_camera_obj* cam_obj; 344 } mm_channel_t; 345 346 /* struct to store information about pp cookie*/ 347 typedef struct { 348 uint32_t cam_hdl; 349 uint32_t ch_hdl; 350 uint32_t stream_hdl; 351 mm_channel_queue_node_t* super_buf; 352 } mm_channel_pp_info_t; 353 354 /* mm_camera */ 355 typedef struct { 356 mm_camera_event_notify_t evt_cb; 357 void *user_data; 358 } mm_camera_evt_entry_t; 359 360 typedef struct { 361 mm_camera_evt_entry_t evt[MM_CAMERA_EVT_ENTRY_MAX]; 362 /* reg_count <=0: infinite 363 * reg_count > 0: register only for required times */ 364 int reg_count; 365 } mm_camera_evt_obj_t; 366 367 typedef struct mm_camera_obj { 368 uint32_t my_hdl; 369 int ref_count; 370 int32_t ctrl_fd; 371 int32_t ds_fd; /* domain socket fd */ 372 pthread_mutex_t cam_lock; 373 pthread_mutex_t cb_lock; /* lock for evt cb */ 374 mm_channel_t ch[MM_CAMERA_CHANNEL_MAX]; 375 mm_camera_evt_obj_t evt; 376 mm_camera_poll_thread_t evt_poll_thread; /* evt poll thread */ 377 mm_camera_cmd_thread_t evt_thread; /* thread for evt CB */ 378 mm_camera_vtbl_t vtbl; 379 380 pthread_mutex_t evt_lock; 381 pthread_cond_t evt_cond; 382 mm_camera_event_t evt_rcvd; 383 384 pthread_mutex_t msg_lock; /* lock for sending msg through socket */ 385 } mm_camera_obj_t; 386 387 typedef struct { 388 int8_t num_cam; 389 char video_dev_name[MM_CAMERA_MAX_NUM_SENSORS][MM_CAMERA_DEV_NAME_LEN]; 390 mm_camera_obj_t *cam_obj[MM_CAMERA_MAX_NUM_SENSORS]; 391 } mm_camera_ctrl_t; 392 393 typedef enum { 394 mm_camera_async_call, 395 mm_camera_sync_call 396 } mm_camera_call_type_t; 397 398 /********************************************************************************** 399 * external function declare 400 ***********************************************************************************/ 401 /* utility functions */ 402 /* set int32_t value */ 403 extern int32_t mm_camera_util_s_ctrl(int32_t fd, 404 uint32_t id, 405 int32_t *value); 406 407 /* get int32_t value */ 408 extern int32_t mm_camera_util_g_ctrl(int32_t fd, 409 uint32_t id, 410 int32_t *value); 411 412 /* send msg throught domain socket for fd mapping */ 413 extern int32_t mm_camera_util_sendmsg(mm_camera_obj_t *my_obj, 414 void *msg, 415 uint32_t buf_size, 416 int sendfd); 417 /* Check if hardware target is A family */ 418 uint8_t mm_camera_util_chip_is_a_family(void); 419 420 /* mm-camera */ 421 extern int32_t mm_camera_open(mm_camera_obj_t *my_obj); 422 extern int32_t mm_camera_close(mm_camera_obj_t *my_obj); 423 extern int32_t mm_camera_register_event_notify(mm_camera_obj_t *my_obj, 424 mm_camera_event_notify_t evt_cb, 425 void * user_data); 426 extern int32_t mm_camera_qbuf(mm_camera_obj_t *my_obj, 427 uint32_t ch_id, 428 mm_camera_buf_def_t *buf); 429 extern int32_t mm_camera_query_capability(mm_camera_obj_t *my_obj); 430 extern int32_t mm_camera_set_parms(mm_camera_obj_t *my_obj, 431 parm_buffer_t *parms); 432 extern int32_t mm_camera_get_parms(mm_camera_obj_t *my_obj, 433 parm_buffer_t *parms); 434 extern int32_t mm_camera_map_buf(mm_camera_obj_t *my_obj, 435 uint8_t buf_type, 436 int fd, 437 uint32_t size); 438 extern int32_t mm_camera_unmap_buf(mm_camera_obj_t *my_obj, 439 uint8_t buf_type); 440 extern int32_t mm_camera_do_auto_focus(mm_camera_obj_t *my_obj); 441 extern int32_t mm_camera_cancel_auto_focus(mm_camera_obj_t *my_obj); 442 extern int32_t mm_camera_prepare_snapshot(mm_camera_obj_t *my_obj, 443 int32_t do_af_flag); 444 extern int32_t mm_camera_start_zsl_snapshot(mm_camera_obj_t *my_obj); 445 extern int32_t mm_camera_stop_zsl_snapshot(mm_camera_obj_t *my_obj); 446 extern uint32_t mm_camera_add_channel(mm_camera_obj_t *my_obj, 447 mm_camera_channel_attr_t *attr, 448 mm_camera_buf_notify_t channel_cb, 449 void *userdata); 450 extern int32_t mm_camera_del_channel(mm_camera_obj_t *my_obj, 451 uint32_t ch_id); 452 extern int32_t mm_camera_get_bundle_info(mm_camera_obj_t *my_obj, 453 uint32_t ch_id, 454 cam_bundle_config_t *bundle_info); 455 extern uint32_t mm_camera_add_stream(mm_camera_obj_t *my_obj, 456 uint32_t ch_id); 457 extern int32_t mm_camera_del_stream(mm_camera_obj_t *my_obj, 458 uint32_t ch_id, 459 uint32_t stream_id); 460 extern int32_t mm_camera_config_stream(mm_camera_obj_t *my_obj, 461 uint32_t ch_id, 462 uint32_t stream_id, 463 mm_camera_stream_config_t *config); 464 extern int32_t mm_camera_start_channel(mm_camera_obj_t *my_obj, 465 uint32_t ch_id); 466 extern int32_t mm_camera_stop_channel(mm_camera_obj_t *my_obj, 467 uint32_t ch_id); 468 extern int32_t mm_camera_request_super_buf(mm_camera_obj_t *my_obj, 469 uint32_t ch_id, 470 uint32_t num_buf_requested); 471 extern int32_t mm_camera_cancel_super_buf_request(mm_camera_obj_t *my_obj, 472 uint32_t ch_id); 473 extern int32_t mm_camera_flush_super_buf_queue(mm_camera_obj_t *my_obj, 474 uint32_t ch_id, 475 uint32_t frame_idx); 476 extern int32_t mm_camera_config_channel_notify(mm_camera_obj_t *my_obj, 477 uint32_t ch_id, 478 mm_camera_super_buf_notify_mode_t notify_mode); 479 extern int32_t mm_camera_set_stream_parms(mm_camera_obj_t *my_obj, 480 uint32_t ch_id, 481 uint32_t s_id, 482 cam_stream_parm_buffer_t *parms); 483 extern int32_t mm_camera_get_stream_parms(mm_camera_obj_t *my_obj, 484 uint32_t ch_id, 485 uint32_t s_id, 486 cam_stream_parm_buffer_t *parms); 487 extern int32_t mm_camera_register_event_notify_internal(mm_camera_obj_t *my_obj, 488 mm_camera_event_notify_t evt_cb, 489 void * user_data); 490 extern int32_t mm_camera_map_stream_buf(mm_camera_obj_t *my_obj, 491 uint32_t ch_id, 492 uint32_t stream_id, 493 uint8_t buf_type, 494 uint32_t buf_idx, 495 int32_t plane_idx, 496 int fd, 497 uint32_t size); 498 extern int32_t mm_camera_unmap_stream_buf(mm_camera_obj_t *my_obj, 499 uint32_t ch_id, 500 uint32_t stream_id, 501 uint8_t buf_type, 502 uint32_t buf_idx, 503 int32_t plane_idx); 504 extern int32_t mm_camera_do_stream_action(mm_camera_obj_t *my_obj, 505 uint32_t ch_id, 506 uint32_t stream_id, 507 void *actions); 508 509 /* mm_channel */ 510 extern int32_t mm_channel_fsm_fn(mm_channel_t *my_obj, 511 mm_channel_evt_type_t evt, 512 void * in_val, 513 void * out_val); 514 extern int32_t mm_channel_init(mm_channel_t *my_obj, 515 mm_camera_channel_attr_t *attr, 516 mm_camera_buf_notify_t channel_cb, 517 void *userdata); 518 /* qbuf is a special case that not going through state machine. 519 * This is to avoid deadlock when trying to aquire ch_lock, 520 * from the context of dataCB, but async stop is holding ch_lock */ 521 extern int32_t mm_channel_qbuf(mm_channel_t *my_obj, 522 mm_camera_buf_def_t *buf); 523 524 /* mm_stream */ 525 extern int32_t mm_stream_fsm_fn(mm_stream_t *my_obj, 526 mm_stream_evt_type_t evt, 527 void * in_val, 528 void * out_val); 529 /* Allow other stream to register dataCB at certain stream. 530 * This is for use case of video sized live snapshot, 531 * because snapshot stream need register one time CB at video stream. 532 * ext_image_mode and sensor_idx are used to identify the destinate stream 533 * to be register with dataCB. */ 534 extern int32_t mm_stream_reg_buf_cb(mm_stream_t *my_obj, 535 mm_stream_data_cb_t *val); 536 extern int32_t mm_stream_map_buf(mm_stream_t *my_obj, 537 uint8_t buf_type, 538 uint32_t frame_idx, 539 int32_t plane_idx, 540 int fd, 541 uint32_t size); 542 extern int32_t mm_stream_unmap_buf(mm_stream_t *my_obj, 543 uint8_t buf_type, 544 uint32_t frame_idx, 545 int32_t plane_idx); 546 547 548 /* utiltity fucntion declared in mm-camera-inteface2.c 549 * and need be used by mm-camera and below*/ 550 uint32_t mm_camera_util_generate_handler(uint8_t index); 551 const char * mm_camera_util_get_dev_name(uint32_t cam_handler); 552 uint8_t mm_camera_util_get_index_by_handler(uint32_t handler); 553 554 /* poll/cmd thread functions */ 555 extern int32_t mm_camera_poll_thread_launch( 556 mm_camera_poll_thread_t * poll_cb, 557 mm_camera_poll_thread_type_t poll_type); 558 extern int32_t mm_camera_poll_thread_release(mm_camera_poll_thread_t *poll_cb); 559 extern int32_t mm_camera_poll_thread_add_poll_fd( 560 mm_camera_poll_thread_t * poll_cb, 561 uint32_t handler, 562 int32_t fd, 563 mm_camera_poll_notify_t nofity_cb, 564 void *userdata, 565 mm_camera_call_type_t); 566 extern int32_t mm_camera_poll_thread_del_poll_fd( 567 mm_camera_poll_thread_t * poll_cb, 568 uint32_t handler, 569 mm_camera_call_type_t); 570 extern int32_t mm_camera_cmd_thread_launch( 571 mm_camera_cmd_thread_t * cmd_thread, 572 mm_camera_cmd_cb_t cb, 573 void* user_data); 574 extern int32_t mm_camera_cmd_thread_release(mm_camera_cmd_thread_t * cmd_thread); 575 576 #endif /* __MM_CAMERA_H__ */ 577