1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Support for Medifield PNW Camera Imaging ISP subsystem. 4 * 5 * Copyright (c) 2010 Intel Corporation. All Rights Reserved. 6 * 7 * Copyright (c) 2010 Silicon Hive www.siliconhive.com. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License version 11 * 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * 19 */ 20 21 #include <linux/module.h> 22 #include <linux/pm_runtime.h> 23 24 #include <media/v4l2-ioctl.h> 25 #include <media/videobuf-vmalloc.h> 26 27 #include "atomisp_cmd.h" 28 #include "atomisp_common.h" 29 #include "atomisp_fops.h" 30 #include "atomisp_internal.h" 31 #include "atomisp_ioctl.h" 32 #include "atomisp_compat.h" 33 #include "atomisp_subdev.h" 34 #include "atomisp_v4l2.h" 35 #include "atomisp-regs.h" 36 #include "hmm/hmm.h" 37 38 #include "type_support.h" 39 #include "device_access/device_access.h" 40 41 #include "atomisp_acc.h" 42 43 #define ISP_LEFT_PAD 128 /* equal to 2*NWAY */ 44 45 /* 46 * input image data, and current frame resolution for test 47 */ 48 #define ISP_PARAM_MMAP_OFFSET 0xfffff000 49 50 #define MAGIC_CHECK(is, should) \ 51 do { \ 52 if (unlikely((is) != (should))) { \ 53 pr_err("magic mismatch: %x (expected %x)\n", \ 54 is, should); \ 55 BUG(); \ 56 } \ 57 } while (0) 58 59 /* 60 * Videobuf ops 61 */ 62 static int atomisp_buf_setup(struct videobuf_queue *vq, unsigned int *count, 63 unsigned int *size) 64 { 65 struct atomisp_video_pipe *pipe = vq->priv_data; 66 67 *size = pipe->pix.sizeimage; 68 69 return 0; 70 } 71 72 static int atomisp_buf_prepare(struct videobuf_queue *vq, 73 struct videobuf_buffer *vb, 74 enum v4l2_field field) 75 { 76 struct atomisp_video_pipe *pipe = vq->priv_data; 77 78 vb->size = pipe->pix.sizeimage; 79 vb->width = pipe->pix.width; 80 vb->height = pipe->pix.height; 81 vb->field = field; 82 vb->state = VIDEOBUF_PREPARED; 83 84 return 0; 85 } 86 87 static int atomisp_q_one_metadata_buffer(struct atomisp_sub_device *asd, 88 enum atomisp_input_stream_id stream_id, 89 enum ia_css_pipe_id css_pipe_id) 90 { 91 struct atomisp_metadata_buf *metadata_buf; 92 enum atomisp_metadata_type md_type = 93 atomisp_get_metadata_type(asd, css_pipe_id); 94 struct list_head *metadata_list; 95 96 if (asd->metadata_bufs_in_css[stream_id][css_pipe_id] >= 97 ATOMISP_CSS_Q_DEPTH) 98 return 0; /* we have reached CSS queue depth */ 99 100 if (!list_empty(&asd->metadata[md_type])) { 101 metadata_list = &asd->metadata[md_type]; 102 } else if (!list_empty(&asd->metadata_ready[md_type])) { 103 metadata_list = &asd->metadata_ready[md_type]; 104 } else { 105 dev_warn(asd->isp->dev, "%s: No metadata buffers available for type %d!\n", 106 __func__, md_type); 107 return -EINVAL; 108 } 109 110 metadata_buf = list_entry(metadata_list->next, 111 struct atomisp_metadata_buf, list); 112 list_del_init(&metadata_buf->list); 113 114 if (atomisp_q_metadata_buffer_to_css(asd, metadata_buf, 115 stream_id, css_pipe_id)) { 116 list_add(&metadata_buf->list, metadata_list); 117 return -EINVAL; 118 } else { 119 list_add_tail(&metadata_buf->list, 120 &asd->metadata_in_css[md_type]); 121 } 122 asd->metadata_bufs_in_css[stream_id][css_pipe_id]++; 123 124 return 0; 125 } 126 127 static int atomisp_q_one_s3a_buffer(struct atomisp_sub_device *asd, 128 enum atomisp_input_stream_id stream_id, 129 enum ia_css_pipe_id css_pipe_id) 130 { 131 struct atomisp_s3a_buf *s3a_buf; 132 struct list_head *s3a_list; 133 unsigned int exp_id; 134 135 if (asd->s3a_bufs_in_css[css_pipe_id] >= ATOMISP_CSS_Q_DEPTH) 136 return 0; /* we have reached CSS queue depth */ 137 138 if (!list_empty(&asd->s3a_stats)) { 139 s3a_list = &asd->s3a_stats; 140 } else if (!list_empty(&asd->s3a_stats_ready)) { 141 s3a_list = &asd->s3a_stats_ready; 142 } else { 143 dev_warn(asd->isp->dev, "%s: No s3a buffers available!\n", 144 __func__); 145 return -EINVAL; 146 } 147 148 s3a_buf = list_entry(s3a_list->next, struct atomisp_s3a_buf, list); 149 list_del_init(&s3a_buf->list); 150 exp_id = s3a_buf->s3a_data->exp_id; 151 152 hmm_flush_vmap(s3a_buf->s3a_data->data_ptr); 153 if (atomisp_q_s3a_buffer_to_css(asd, s3a_buf, 154 stream_id, css_pipe_id)) { 155 /* got from head, so return back to the head */ 156 list_add(&s3a_buf->list, s3a_list); 157 return -EINVAL; 158 } else { 159 list_add_tail(&s3a_buf->list, &asd->s3a_stats_in_css); 160 if (s3a_list == &asd->s3a_stats_ready) 161 dev_warn(asd->isp->dev, "%s: drop one s3a stat which has exp_id %d!\n", 162 __func__, exp_id); 163 } 164 165 asd->s3a_bufs_in_css[css_pipe_id]++; 166 return 0; 167 } 168 169 static int atomisp_q_one_dis_buffer(struct atomisp_sub_device *asd, 170 enum atomisp_input_stream_id stream_id, 171 enum ia_css_pipe_id css_pipe_id) 172 { 173 struct atomisp_dis_buf *dis_buf; 174 unsigned long irqflags; 175 176 if (asd->dis_bufs_in_css >= ATOMISP_CSS_Q_DEPTH) 177 return 0; /* we have reached CSS queue depth */ 178 179 spin_lock_irqsave(&asd->dis_stats_lock, irqflags); 180 if (list_empty(&asd->dis_stats)) { 181 spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags); 182 dev_warn(asd->isp->dev, "%s: No dis buffers available!\n", 183 __func__); 184 return -EINVAL; 185 } 186 187 dis_buf = list_entry(asd->dis_stats.prev, 188 struct atomisp_dis_buf, list); 189 list_del_init(&dis_buf->list); 190 spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags); 191 192 hmm_flush_vmap(dis_buf->dis_data->data_ptr); 193 if (atomisp_q_dis_buffer_to_css(asd, dis_buf, 194 stream_id, css_pipe_id)) { 195 spin_lock_irqsave(&asd->dis_stats_lock, irqflags); 196 /* got from tail, so return back to the tail */ 197 list_add_tail(&dis_buf->list, &asd->dis_stats); 198 spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags); 199 return -EINVAL; 200 } else { 201 spin_lock_irqsave(&asd->dis_stats_lock, irqflags); 202 list_add_tail(&dis_buf->list, &asd->dis_stats_in_css); 203 spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags); 204 } 205 206 asd->dis_bufs_in_css++; 207 208 return 0; 209 } 210 211 int atomisp_q_video_buffers_to_css(struct atomisp_sub_device *asd, 212 struct atomisp_video_pipe *pipe, 213 enum atomisp_input_stream_id stream_id, 214 enum ia_css_buffer_type css_buf_type, 215 enum ia_css_pipe_id css_pipe_id) 216 { 217 struct videobuf_vmalloc_memory *vm_mem; 218 struct atomisp_css_params_with_list *param; 219 struct ia_css_dvs_grid_info *dvs_grid = 220 atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info); 221 unsigned long irqflags; 222 int err = 0; 223 224 if (WARN_ON(css_pipe_id >= IA_CSS_PIPE_ID_NUM)) 225 return -EINVAL; 226 227 while (pipe->buffers_in_css < ATOMISP_CSS_Q_DEPTH) { 228 struct videobuf_buffer *vb; 229 230 spin_lock_irqsave(&pipe->irq_lock, irqflags); 231 if (list_empty(&pipe->activeq)) { 232 spin_unlock_irqrestore(&pipe->irq_lock, irqflags); 233 return -EINVAL; 234 } 235 vb = list_entry(pipe->activeq.next, 236 struct videobuf_buffer, queue); 237 list_del_init(&vb->queue); 238 vb->state = VIDEOBUF_ACTIVE; 239 spin_unlock_irqrestore(&pipe->irq_lock, irqflags); 240 241 /* 242 * If there is a per_frame setting to apply on the buffer, 243 * do it before buffer en-queueing. 244 */ 245 vm_mem = vb->priv; 246 247 param = pipe->frame_params[vb->i]; 248 if (param) { 249 atomisp_makeup_css_parameters(asd, 250 &asd->params.css_param.update_flag, 251 ¶m->params); 252 atomisp_apply_css_parameters(asd, ¶m->params); 253 254 if (param->params.update_flag.dz_config && 255 asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) { 256 err = atomisp_calculate_real_zoom_region(asd, 257 ¶m->params.dz_config, css_pipe_id); 258 if (!err) 259 asd->params.config.dz_config = ¶m->params.dz_config; 260 } 261 atomisp_css_set_isp_config_applied_frame(asd, 262 vm_mem->vaddr); 263 atomisp_css_update_isp_params_on_pipe(asd, 264 asd->stream_env[stream_id].pipes[css_pipe_id]); 265 asd->params.dvs_6axis = (struct ia_css_dvs_6axis_config *) 266 param->params.dvs_6axis; 267 268 /* 269 * WORKAROUND: 270 * Because the camera halv3 can't ensure to set zoom 271 * region to per_frame setting and global setting at 272 * same time and only set zoom region to pre_frame 273 * setting now.so when the pre_frame setting include 274 * zoom region,I will set it to global setting. 275 */ 276 if (param->params.update_flag.dz_config && 277 asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO 278 && !err) { 279 memcpy(&asd->params.css_param.dz_config, 280 ¶m->params.dz_config, 281 sizeof(struct ia_css_dz_config)); 282 asd->params.css_param.update_flag.dz_config = 283 (struct atomisp_dz_config *) 284 &asd->params.css_param.dz_config; 285 asd->params.css_update_params_needed = true; 286 } 287 } 288 /* Enqueue buffer */ 289 err = atomisp_q_video_buffer_to_css(asd, vm_mem, stream_id, 290 css_buf_type, css_pipe_id); 291 if (err) { 292 spin_lock_irqsave(&pipe->irq_lock, irqflags); 293 list_add_tail(&vb->queue, &pipe->activeq); 294 vb->state = VIDEOBUF_QUEUED; 295 spin_unlock_irqrestore(&pipe->irq_lock, irqflags); 296 dev_err(asd->isp->dev, "%s, css q fails: %d\n", 297 __func__, err); 298 return -EINVAL; 299 } 300 pipe->buffers_in_css++; 301 302 /* enqueue 3A/DIS/metadata buffers */ 303 if (asd->params.curr_grid_info.s3a_grid.enable && 304 css_pipe_id == asd->params.s3a_enabled_pipe && 305 css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME) 306 atomisp_q_one_s3a_buffer(asd, stream_id, 307 css_pipe_id); 308 309 if (asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info. 310 metadata_info.size && 311 css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME) 312 atomisp_q_one_metadata_buffer(asd, stream_id, 313 css_pipe_id); 314 315 if (dvs_grid && dvs_grid->enable && 316 css_pipe_id == IA_CSS_PIPE_ID_VIDEO && 317 css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME) 318 atomisp_q_one_dis_buffer(asd, stream_id, 319 css_pipe_id); 320 } 321 322 return 0; 323 } 324 325 static int atomisp_get_css_buf_type(struct atomisp_sub_device *asd, 326 enum ia_css_pipe_id pipe_id, 327 uint16_t source_pad) 328 { 329 if (ATOMISP_USE_YUVPP(asd)) { 330 /* when run ZSL case */ 331 if (asd->continuous_mode->val && 332 asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) { 333 if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE) 334 return IA_CSS_BUFFER_TYPE_OUTPUT_FRAME; 335 else if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW) 336 return IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME; 337 else 338 return IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME; 339 } 340 341 /*when run SDV case*/ 342 if (asd->continuous_mode->val && 343 asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) { 344 if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE) 345 return IA_CSS_BUFFER_TYPE_OUTPUT_FRAME; 346 else if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW) 347 return IA_CSS_BUFFER_TYPE_SEC_VF_OUTPUT_FRAME; 348 else if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO) 349 return IA_CSS_BUFFER_TYPE_SEC_OUTPUT_FRAME; 350 else 351 return IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME; 352 } 353 354 /*other case: default setting*/ 355 if (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE || 356 source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO || 357 (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW && 358 asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO)) 359 return IA_CSS_BUFFER_TYPE_OUTPUT_FRAME; 360 else 361 return IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME; 362 } 363 364 if (pipe_id == IA_CSS_PIPE_ID_COPY || 365 source_pad == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE || 366 source_pad == ATOMISP_SUBDEV_PAD_SOURCE_VIDEO || 367 (source_pad == ATOMISP_SUBDEV_PAD_SOURCE_PREVIEW && 368 asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO)) 369 return IA_CSS_BUFFER_TYPE_OUTPUT_FRAME; 370 else 371 return IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME; 372 } 373 374 static int atomisp_qbuffers_to_css_for_all_pipes(struct atomisp_sub_device *asd) 375 { 376 enum ia_css_buffer_type buf_type; 377 enum ia_css_pipe_id css_capture_pipe_id = IA_CSS_PIPE_ID_COPY; 378 enum ia_css_pipe_id css_preview_pipe_id = IA_CSS_PIPE_ID_COPY; 379 enum ia_css_pipe_id css_video_pipe_id = IA_CSS_PIPE_ID_COPY; 380 enum atomisp_input_stream_id input_stream_id; 381 struct atomisp_video_pipe *capture_pipe; 382 struct atomisp_video_pipe *preview_pipe; 383 struct atomisp_video_pipe *video_pipe; 384 385 capture_pipe = &asd->video_out_capture; 386 preview_pipe = &asd->video_out_preview; 387 video_pipe = &asd->video_out_video_capture; 388 389 buf_type = atomisp_get_css_buf_type( 390 asd, css_preview_pipe_id, 391 atomisp_subdev_source_pad(&preview_pipe->vdev)); 392 input_stream_id = ATOMISP_INPUT_STREAM_PREVIEW; 393 atomisp_q_video_buffers_to_css(asd, preview_pipe, 394 input_stream_id, 395 buf_type, css_preview_pipe_id); 396 397 buf_type = atomisp_get_css_buf_type(asd, css_capture_pipe_id, 398 atomisp_subdev_source_pad(&capture_pipe->vdev)); 399 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 400 atomisp_q_video_buffers_to_css(asd, capture_pipe, 401 input_stream_id, 402 buf_type, css_capture_pipe_id); 403 404 buf_type = atomisp_get_css_buf_type(asd, css_video_pipe_id, 405 atomisp_subdev_source_pad(&video_pipe->vdev)); 406 input_stream_id = ATOMISP_INPUT_STREAM_VIDEO; 407 atomisp_q_video_buffers_to_css(asd, video_pipe, 408 input_stream_id, 409 buf_type, css_video_pipe_id); 410 return 0; 411 } 412 413 /* queue all available buffers to css */ 414 int atomisp_qbuffers_to_css(struct atomisp_sub_device *asd) 415 { 416 enum ia_css_buffer_type buf_type; 417 enum ia_css_pipe_id css_capture_pipe_id = IA_CSS_PIPE_ID_NUM; 418 enum ia_css_pipe_id css_preview_pipe_id = IA_CSS_PIPE_ID_NUM; 419 enum ia_css_pipe_id css_video_pipe_id = IA_CSS_PIPE_ID_NUM; 420 enum atomisp_input_stream_id input_stream_id; 421 struct atomisp_video_pipe *capture_pipe = NULL; 422 struct atomisp_video_pipe *vf_pipe = NULL; 423 struct atomisp_video_pipe *preview_pipe = NULL; 424 struct atomisp_video_pipe *video_pipe = NULL; 425 bool raw_mode = atomisp_is_mbuscode_raw( 426 asd->fmt[asd->capture_pad].fmt.code); 427 428 if (asd->isp->inputs[asd->input_curr].camera_caps-> 429 sensor[asd->sensor_curr].stream_num == 2 && 430 !asd->yuvpp_mode) 431 return atomisp_qbuffers_to_css_for_all_pipes(asd); 432 433 if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) { 434 video_pipe = &asd->video_out_video_capture; 435 css_video_pipe_id = IA_CSS_PIPE_ID_VIDEO; 436 } else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) { 437 preview_pipe = &asd->video_out_capture; 438 css_preview_pipe_id = IA_CSS_PIPE_ID_CAPTURE; 439 } else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) { 440 if (asd->continuous_mode->val) { 441 capture_pipe = &asd->video_out_capture; 442 vf_pipe = &asd->video_out_vf; 443 css_capture_pipe_id = IA_CSS_PIPE_ID_CAPTURE; 444 } 445 video_pipe = &asd->video_out_video_capture; 446 preview_pipe = &asd->video_out_preview; 447 css_video_pipe_id = IA_CSS_PIPE_ID_VIDEO; 448 css_preview_pipe_id = IA_CSS_PIPE_ID_VIDEO; 449 } else if (asd->continuous_mode->val) { 450 capture_pipe = &asd->video_out_capture; 451 vf_pipe = &asd->video_out_vf; 452 preview_pipe = &asd->video_out_preview; 453 454 css_preview_pipe_id = IA_CSS_PIPE_ID_PREVIEW; 455 css_capture_pipe_id = IA_CSS_PIPE_ID_CAPTURE; 456 } else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) { 457 preview_pipe = &asd->video_out_preview; 458 css_preview_pipe_id = IA_CSS_PIPE_ID_PREVIEW; 459 } else { 460 /* ATOMISP_RUN_MODE_STILL_CAPTURE */ 461 capture_pipe = &asd->video_out_capture; 462 if (!raw_mode) 463 vf_pipe = &asd->video_out_vf; 464 css_capture_pipe_id = IA_CSS_PIPE_ID_CAPTURE; 465 } 466 467 if (IS_ISP2401 && asd->copy_mode) { 468 css_capture_pipe_id = IA_CSS_PIPE_ID_COPY; 469 css_preview_pipe_id = IA_CSS_PIPE_ID_COPY; 470 css_video_pipe_id = IA_CSS_PIPE_ID_COPY; 471 } 472 473 if (asd->yuvpp_mode) { 474 capture_pipe = &asd->video_out_capture; 475 video_pipe = &asd->video_out_video_capture; 476 preview_pipe = &asd->video_out_preview; 477 css_capture_pipe_id = IA_CSS_PIPE_ID_COPY; 478 css_video_pipe_id = IA_CSS_PIPE_ID_YUVPP; 479 css_preview_pipe_id = IA_CSS_PIPE_ID_YUVPP; 480 } 481 482 if (capture_pipe) { 483 buf_type = atomisp_get_css_buf_type( 484 asd, css_capture_pipe_id, 485 atomisp_subdev_source_pad(&capture_pipe->vdev)); 486 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 487 488 /* 489 * use yuvpp pipe for SOC camera. 490 */ 491 if (ATOMISP_USE_YUVPP(asd)) 492 css_capture_pipe_id = IA_CSS_PIPE_ID_YUVPP; 493 494 atomisp_q_video_buffers_to_css(asd, capture_pipe, 495 input_stream_id, 496 buf_type, css_capture_pipe_id); 497 } 498 499 if (vf_pipe) { 500 buf_type = atomisp_get_css_buf_type( 501 asd, css_capture_pipe_id, 502 atomisp_subdev_source_pad(&vf_pipe->vdev)); 503 if (asd->stream_env[ATOMISP_INPUT_STREAM_POSTVIEW].stream) 504 input_stream_id = ATOMISP_INPUT_STREAM_POSTVIEW; 505 else 506 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 507 508 /* 509 * use yuvpp pipe for SOC camera. 510 */ 511 if (ATOMISP_USE_YUVPP(asd)) 512 css_capture_pipe_id = IA_CSS_PIPE_ID_YUVPP; 513 atomisp_q_video_buffers_to_css(asd, vf_pipe, 514 input_stream_id, 515 buf_type, css_capture_pipe_id); 516 } 517 518 if (preview_pipe) { 519 buf_type = atomisp_get_css_buf_type( 520 asd, css_preview_pipe_id, 521 atomisp_subdev_source_pad(&preview_pipe->vdev)); 522 if (ATOMISP_SOC_CAMERA(asd) && css_preview_pipe_id == IA_CSS_PIPE_ID_YUVPP) 523 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 524 /* else for ext isp use case */ 525 else if (css_preview_pipe_id == IA_CSS_PIPE_ID_YUVPP) 526 input_stream_id = ATOMISP_INPUT_STREAM_VIDEO; 527 else if (asd->stream_env[ATOMISP_INPUT_STREAM_PREVIEW].stream) 528 input_stream_id = ATOMISP_INPUT_STREAM_PREVIEW; 529 else 530 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 531 532 /* 533 * use yuvpp pipe for SOC camera. 534 */ 535 if (ATOMISP_USE_YUVPP(asd)) 536 css_preview_pipe_id = IA_CSS_PIPE_ID_YUVPP; 537 538 atomisp_q_video_buffers_to_css(asd, preview_pipe, 539 input_stream_id, 540 buf_type, css_preview_pipe_id); 541 } 542 543 if (video_pipe) { 544 buf_type = atomisp_get_css_buf_type( 545 asd, css_video_pipe_id, 546 atomisp_subdev_source_pad(&video_pipe->vdev)); 547 if (asd->stream_env[ATOMISP_INPUT_STREAM_VIDEO].stream) 548 input_stream_id = ATOMISP_INPUT_STREAM_VIDEO; 549 else 550 input_stream_id = ATOMISP_INPUT_STREAM_GENERAL; 551 552 /* 553 * use yuvpp pipe for SOC camera. 554 */ 555 if (ATOMISP_USE_YUVPP(asd)) 556 css_video_pipe_id = IA_CSS_PIPE_ID_YUVPP; 557 558 atomisp_q_video_buffers_to_css(asd, video_pipe, 559 input_stream_id, 560 buf_type, css_video_pipe_id); 561 } 562 563 return 0; 564 } 565 566 static void atomisp_buf_queue(struct videobuf_queue *vq, 567 struct videobuf_buffer *vb) 568 { 569 struct atomisp_video_pipe *pipe = vq->priv_data; 570 571 /* 572 * when a frame buffer meets following conditions, it should be put into 573 * the waiting list: 574 * 1. It is not a main output frame, and it has a per-frame parameter 575 * to go with it. 576 * 2. It is not a main output frame, and the waiting buffer list is not 577 * empty, to keep the FIFO sequence of frame buffer processing, it 578 * is put to waiting list until previous per-frame parameter buffers 579 * get enqueued. 580 */ 581 if (!atomisp_is_vf_pipe(pipe) && 582 (pipe->frame_request_config_id[vb->i] || 583 !list_empty(&pipe->buffers_waiting_for_param))) 584 list_add_tail(&vb->queue, &pipe->buffers_waiting_for_param); 585 else 586 list_add_tail(&vb->queue, &pipe->activeq); 587 588 vb->state = VIDEOBUF_QUEUED; 589 } 590 591 static void atomisp_buf_release(struct videobuf_queue *vq, 592 struct videobuf_buffer *vb) 593 { 594 vb->state = VIDEOBUF_NEEDS_INIT; 595 atomisp_videobuf_free_buf(vb); 596 } 597 598 static int atomisp_buf_setup_output(struct videobuf_queue *vq, 599 unsigned int *count, unsigned int *size) 600 { 601 struct atomisp_video_pipe *pipe = vq->priv_data; 602 603 *size = pipe->pix.sizeimage; 604 605 return 0; 606 } 607 608 static int atomisp_buf_prepare_output(struct videobuf_queue *vq, 609 struct videobuf_buffer *vb, 610 enum v4l2_field field) 611 { 612 struct atomisp_video_pipe *pipe = vq->priv_data; 613 614 vb->size = pipe->pix.sizeimage; 615 vb->width = pipe->pix.width; 616 vb->height = pipe->pix.height; 617 vb->field = field; 618 vb->state = VIDEOBUF_PREPARED; 619 620 return 0; 621 } 622 623 static void atomisp_buf_queue_output(struct videobuf_queue *vq, 624 struct videobuf_buffer *vb) 625 { 626 struct atomisp_video_pipe *pipe = vq->priv_data; 627 628 list_add_tail(&vb->queue, &pipe->activeq_out); 629 vb->state = VIDEOBUF_QUEUED; 630 } 631 632 static void atomisp_buf_release_output(struct videobuf_queue *vq, 633 struct videobuf_buffer *vb) 634 { 635 videobuf_vmalloc_free(vb); 636 vb->state = VIDEOBUF_NEEDS_INIT; 637 } 638 639 static const struct videobuf_queue_ops videobuf_qops = { 640 .buf_setup = atomisp_buf_setup, 641 .buf_prepare = atomisp_buf_prepare, 642 .buf_queue = atomisp_buf_queue, 643 .buf_release = atomisp_buf_release, 644 }; 645 646 static const struct videobuf_queue_ops videobuf_qops_output = { 647 .buf_setup = atomisp_buf_setup_output, 648 .buf_prepare = atomisp_buf_prepare_output, 649 .buf_queue = atomisp_buf_queue_output, 650 .buf_release = atomisp_buf_release_output, 651 }; 652 653 static int atomisp_init_pipe(struct atomisp_video_pipe *pipe) 654 { 655 /* init locks */ 656 spin_lock_init(&pipe->irq_lock); 657 658 videobuf_queue_vmalloc_init(&pipe->capq, &videobuf_qops, NULL, 659 &pipe->irq_lock, 660 V4L2_BUF_TYPE_VIDEO_CAPTURE, 661 V4L2_FIELD_NONE, 662 sizeof(struct atomisp_buffer), pipe, 663 NULL); /* ext_lock: NULL */ 664 665 videobuf_queue_vmalloc_init(&pipe->outq, &videobuf_qops_output, NULL, 666 &pipe->irq_lock, 667 V4L2_BUF_TYPE_VIDEO_OUTPUT, 668 V4L2_FIELD_NONE, 669 sizeof(struct atomisp_buffer), pipe, 670 NULL); /* ext_lock: NULL */ 671 672 INIT_LIST_HEAD(&pipe->activeq); 673 INIT_LIST_HEAD(&pipe->activeq_out); 674 INIT_LIST_HEAD(&pipe->buffers_waiting_for_param); 675 INIT_LIST_HEAD(&pipe->per_frame_params); 676 memset(pipe->frame_request_config_id, 0, 677 VIDEO_MAX_FRAME * sizeof(unsigned int)); 678 memset(pipe->frame_params, 0, 679 VIDEO_MAX_FRAME * 680 sizeof(struct atomisp_css_params_with_list *)); 681 682 return 0; 683 } 684 685 static void atomisp_dev_init_struct(struct atomisp_device *isp) 686 { 687 unsigned int i; 688 689 isp->sw_contex.file_input = false; 690 isp->need_gfx_throttle = true; 691 isp->isp_fatal_error = false; 692 isp->mipi_frame_size = 0; 693 694 for (i = 0; i < isp->input_cnt; i++) 695 isp->inputs[i].asd = NULL; 696 /* 697 * For Merrifield, frequency is scalable. 698 * After boot-up, the default frequency is 200MHz. 699 */ 700 isp->sw_contex.running_freq = ISP_FREQ_200MHZ; 701 } 702 703 static void atomisp_subdev_init_struct(struct atomisp_sub_device *asd) 704 { 705 v4l2_ctrl_s_ctrl(asd->run_mode, ATOMISP_RUN_MODE_STILL_CAPTURE); 706 memset(&asd->params.css_param, 0, sizeof(asd->params.css_param)); 707 asd->params.color_effect = V4L2_COLORFX_NONE; 708 asd->params.bad_pixel_en = true; 709 asd->params.gdc_cac_en = false; 710 asd->params.video_dis_en = false; 711 asd->params.sc_en = false; 712 asd->params.fpn_en = false; 713 asd->params.xnr_en = false; 714 asd->params.false_color = 0; 715 asd->params.online_process = 1; 716 asd->params.yuv_ds_en = 0; 717 /* s3a grid not enabled for any pipe */ 718 asd->params.s3a_enabled_pipe = IA_CSS_PIPE_ID_NUM; 719 720 asd->params.offline_parm.num_captures = 1; 721 asd->params.offline_parm.skip_frames = 0; 722 asd->params.offline_parm.offset = 0; 723 asd->delayed_init = ATOMISP_DELAYED_INIT_NOT_QUEUED; 724 /* Add for channel */ 725 asd->input_curr = 0; 726 727 asd->mipi_frame_size = 0; 728 asd->copy_mode = false; 729 asd->yuvpp_mode = false; 730 731 asd->stream_prepared = false; 732 asd->high_speed_mode = false; 733 asd->sensor_array_res.height = 0; 734 asd->sensor_array_res.width = 0; 735 atomisp_css_init_struct(asd); 736 } 737 738 /* 739 * file operation functions 740 */ 741 static unsigned int atomisp_subdev_users(struct atomisp_sub_device *asd) 742 { 743 return asd->video_out_preview.users + 744 asd->video_out_vf.users + 745 asd->video_out_capture.users + 746 asd->video_out_video_capture.users + 747 asd->video_acc.users + 748 asd->video_in.users; 749 } 750 751 unsigned int atomisp_dev_users(struct atomisp_device *isp) 752 { 753 unsigned int i, sum; 754 755 for (i = 0, sum = 0; i < isp->num_of_streams; i++) 756 sum += atomisp_subdev_users(&isp->asd[i]); 757 758 return sum; 759 } 760 761 static int atomisp_open(struct file *file) 762 { 763 struct video_device *vdev = video_devdata(file); 764 struct atomisp_device *isp = video_get_drvdata(vdev); 765 struct atomisp_video_pipe *pipe = NULL; 766 struct atomisp_acc_pipe *acc_pipe = NULL; 767 struct atomisp_sub_device *asd; 768 bool acc_node = false; 769 int ret; 770 771 dev_dbg(isp->dev, "open device %s\n", vdev->name); 772 773 /* 774 * Ensure that if we are still loading we block. Once the loading 775 * is over we can proceed. We can't blindly hold the lock until 776 * that occurs as if the load fails we'll deadlock the unload 777 */ 778 rt_mutex_lock(&isp->loading); 779 /* 780 * FIXME: revisit this with a better check once the code structure 781 * is cleaned up a bit more 782 */ 783 ret = v4l2_fh_open(file); 784 if (ret) { 785 dev_err(isp->dev, 786 "%s: v4l2_fh_open() returned error %d\n", 787 __func__, ret); 788 rt_mutex_unlock(&isp->loading); 789 return ret; 790 } 791 if (!isp->ready) { 792 rt_mutex_unlock(&isp->loading); 793 return -ENXIO; 794 } 795 rt_mutex_unlock(&isp->loading); 796 797 rt_mutex_lock(&isp->mutex); 798 799 acc_node = !strcmp(vdev->name, "ATOMISP ISP ACC"); 800 if (acc_node) { 801 acc_pipe = atomisp_to_acc_pipe(vdev); 802 asd = acc_pipe->asd; 803 } else { 804 pipe = atomisp_to_video_pipe(vdev); 805 asd = pipe->asd; 806 } 807 asd->subdev.devnode = vdev; 808 /* Deferred firmware loading case. */ 809 if (isp->css_env.isp_css_fw.bytes == 0) { 810 dev_err(isp->dev, "Deferred firmware load.\n"); 811 isp->firmware = atomisp_load_firmware(isp); 812 if (!isp->firmware) { 813 dev_err(isp->dev, "Failed to load ISP firmware.\n"); 814 ret = -ENOENT; 815 goto error; 816 } 817 ret = atomisp_css_load_firmware(isp); 818 if (ret) { 819 dev_err(isp->dev, "Failed to init css.\n"); 820 goto error; 821 } 822 /* No need to keep FW in memory anymore. */ 823 release_firmware(isp->firmware); 824 isp->firmware = NULL; 825 isp->css_env.isp_css_fw.data = NULL; 826 } 827 828 if (acc_node && acc_pipe->users) { 829 dev_dbg(isp->dev, "acc node already opened\n"); 830 rt_mutex_unlock(&isp->mutex); 831 return -EBUSY; 832 } else if (acc_node) { 833 goto dev_init; 834 } 835 836 if (!isp->input_cnt) { 837 dev_err(isp->dev, "no camera attached\n"); 838 ret = -EINVAL; 839 goto error; 840 } 841 842 /* 843 * atomisp does not allow multiple open 844 */ 845 if (pipe->users) { 846 dev_dbg(isp->dev, "video node already opened\n"); 847 rt_mutex_unlock(&isp->mutex); 848 return -EBUSY; 849 } 850 851 ret = atomisp_init_pipe(pipe); 852 if (ret) 853 goto error; 854 855 dev_init: 856 if (atomisp_dev_users(isp)) { 857 dev_dbg(isp->dev, "skip init isp in open\n"); 858 goto init_subdev; 859 } 860 861 /* runtime power management, turn on ISP */ 862 ret = pm_runtime_resume_and_get(vdev->v4l2_dev->dev); 863 if (ret < 0) { 864 dev_err(isp->dev, "Failed to power on device\n"); 865 goto error; 866 } 867 868 if (dypool_enable) { 869 ret = hmm_pool_register(dypool_pgnr, HMM_POOL_TYPE_DYNAMIC); 870 if (ret) 871 dev_err(isp->dev, "Failed to register dynamic memory pool.\n"); 872 } 873 874 /* Init ISP */ 875 if (atomisp_css_init(isp)) { 876 ret = -EINVAL; 877 /* Need to clean up CSS init if it fails. */ 878 goto css_error; 879 } 880 881 atomisp_dev_init_struct(isp); 882 883 ret = v4l2_subdev_call(isp->flash, core, s_power, 1); 884 if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD) { 885 dev_err(isp->dev, "Failed to power-on flash\n"); 886 goto css_error; 887 } 888 889 init_subdev: 890 if (atomisp_subdev_users(asd)) 891 goto done; 892 893 atomisp_subdev_init_struct(asd); 894 895 done: 896 897 if (acc_node) 898 acc_pipe->users++; 899 else 900 pipe->users++; 901 rt_mutex_unlock(&isp->mutex); 902 903 /* Ensure that a mode is set */ 904 if (!acc_node) 905 v4l2_ctrl_s_ctrl(asd->run_mode, pipe->default_run_mode); 906 907 return 0; 908 909 css_error: 910 atomisp_css_uninit(isp); 911 pm_runtime_put(vdev->v4l2_dev->dev); 912 error: 913 hmm_pool_unregister(HMM_POOL_TYPE_DYNAMIC); 914 rt_mutex_unlock(&isp->mutex); 915 return ret; 916 } 917 918 static int atomisp_release(struct file *file) 919 { 920 struct video_device *vdev = video_devdata(file); 921 struct atomisp_device *isp = video_get_drvdata(vdev); 922 struct atomisp_video_pipe *pipe; 923 struct atomisp_acc_pipe *acc_pipe; 924 struct atomisp_sub_device *asd; 925 bool acc_node; 926 struct v4l2_requestbuffers req; 927 struct v4l2_subdev_fh fh; 928 struct v4l2_rect clear_compose = {0}; 929 int ret = 0; 930 931 v4l2_fh_init(&fh.vfh, vdev); 932 933 req.count = 0; 934 if (!isp) 935 return -EBADF; 936 937 mutex_lock(&isp->streamoff_mutex); 938 rt_mutex_lock(&isp->mutex); 939 940 dev_dbg(isp->dev, "release device %s\n", vdev->name); 941 acc_node = !strcmp(vdev->name, "ATOMISP ISP ACC"); 942 if (acc_node) { 943 acc_pipe = atomisp_to_acc_pipe(vdev); 944 asd = acc_pipe->asd; 945 } else { 946 pipe = atomisp_to_video_pipe(vdev); 947 asd = pipe->asd; 948 } 949 asd->subdev.devnode = vdev; 950 if (acc_node) { 951 acc_pipe->users--; 952 goto subdev_uninit; 953 } 954 pipe->users--; 955 956 if (pipe->capq.streaming) 957 dev_warn(isp->dev, 958 "%s: ISP still streaming while closing!", 959 __func__); 960 961 if (pipe->capq.streaming && 962 __atomisp_streamoff(file, NULL, V4L2_BUF_TYPE_VIDEO_CAPTURE)) { 963 dev_err(isp->dev, 964 "atomisp_streamoff failed on release, driver bug"); 965 goto done; 966 } 967 968 if (pipe->users) 969 goto done; 970 971 if (__atomisp_reqbufs(file, NULL, &req)) { 972 dev_err(isp->dev, 973 "atomisp_reqbufs failed on release, driver bug"); 974 goto done; 975 } 976 977 if (pipe->outq.bufs[0]) { 978 mutex_lock(&pipe->outq.vb_lock); 979 videobuf_queue_cancel(&pipe->outq); 980 mutex_unlock(&pipe->outq.vb_lock); 981 } 982 983 /* 984 * A little trick here: 985 * file injection input resolution is recorded in the sink pad, 986 * therefore can not be cleared when releaseing one device node. 987 * The sink pad setting can only be cleared when all device nodes 988 * get released. 989 */ 990 if (!isp->sw_contex.file_input && asd->fmt_auto->val) { 991 struct v4l2_mbus_framefmt isp_sink_fmt = { 0 }; 992 993 atomisp_subdev_set_ffmt(&asd->subdev, fh.state, 994 V4L2_SUBDEV_FORMAT_ACTIVE, 995 ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt); 996 } 997 subdev_uninit: 998 if (atomisp_subdev_users(asd)) 999 goto done; 1000 1001 /* clear the sink pad for file input */ 1002 if (isp->sw_contex.file_input && asd->fmt_auto->val) { 1003 struct v4l2_mbus_framefmt isp_sink_fmt = { 0 }; 1004 1005 atomisp_subdev_set_ffmt(&asd->subdev, fh.state, 1006 V4L2_SUBDEV_FORMAT_ACTIVE, 1007 ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt); 1008 } 1009 1010 atomisp_css_free_stat_buffers(asd); 1011 atomisp_free_internal_buffers(asd); 1012 ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, 1013 core, s_power, 0); 1014 if (ret) 1015 dev_warn(isp->dev, "Failed to power-off sensor\n"); 1016 1017 /* clear the asd field to show this camera is not used */ 1018 isp->inputs[asd->input_curr].asd = NULL; 1019 asd->streaming = ATOMISP_DEVICE_STREAMING_DISABLED; 1020 1021 if (atomisp_dev_users(isp)) 1022 goto done; 1023 1024 atomisp_acc_release(asd); 1025 1026 atomisp_destroy_pipes_stream_force(asd); 1027 atomisp_css_uninit(isp); 1028 1029 if (defer_fw_load) { 1030 ia_css_unload_firmware(); 1031 isp->css_env.isp_css_fw.data = NULL; 1032 isp->css_env.isp_css_fw.bytes = 0; 1033 } 1034 1035 hmm_pool_unregister(HMM_POOL_TYPE_DYNAMIC); 1036 1037 ret = v4l2_subdev_call(isp->flash, core, s_power, 0); 1038 if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD) 1039 dev_warn(isp->dev, "Failed to power-off flash\n"); 1040 1041 if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0) 1042 dev_err(isp->dev, "Failed to power off device\n"); 1043 1044 done: 1045 if (!acc_node) { 1046 atomisp_subdev_set_selection(&asd->subdev, fh.state, 1047 V4L2_SUBDEV_FORMAT_ACTIVE, 1048 atomisp_subdev_source_pad(vdev), 1049 V4L2_SEL_TGT_COMPOSE, 0, 1050 &clear_compose); 1051 } 1052 rt_mutex_unlock(&isp->mutex); 1053 mutex_unlock(&isp->streamoff_mutex); 1054 1055 return v4l2_fh_release(file); 1056 } 1057 1058 /* 1059 * Memory help functions for image frame and private parameters 1060 */ 1061 static int do_isp_mm_remap(struct atomisp_device *isp, 1062 struct vm_area_struct *vma, 1063 ia_css_ptr isp_virt, u32 host_virt, u32 pgnr) 1064 { 1065 u32 pfn; 1066 1067 while (pgnr) { 1068 pfn = hmm_virt_to_phys(isp_virt) >> PAGE_SHIFT; 1069 if (remap_pfn_range(vma, host_virt, pfn, 1070 PAGE_SIZE, PAGE_SHARED)) { 1071 dev_err(isp->dev, "remap_pfn_range err.\n"); 1072 return -EAGAIN; 1073 } 1074 1075 isp_virt += PAGE_SIZE; 1076 host_virt += PAGE_SIZE; 1077 pgnr--; 1078 } 1079 1080 return 0; 1081 } 1082 1083 static int frame_mmap(struct atomisp_device *isp, 1084 const struct ia_css_frame *frame, struct vm_area_struct *vma) 1085 { 1086 ia_css_ptr isp_virt; 1087 u32 host_virt; 1088 u32 pgnr; 1089 1090 if (!frame) { 1091 dev_err(isp->dev, "%s: NULL frame pointer.\n", __func__); 1092 return -EINVAL; 1093 } 1094 1095 host_virt = vma->vm_start; 1096 isp_virt = frame->data; 1097 pgnr = DIV_ROUND_UP(frame->data_bytes, PAGE_SIZE); 1098 1099 if (do_isp_mm_remap(isp, vma, isp_virt, host_virt, pgnr)) 1100 return -EAGAIN; 1101 1102 return 0; 1103 } 1104 1105 int atomisp_videobuf_mmap_mapper(struct videobuf_queue *q, 1106 struct vm_area_struct *vma) 1107 { 1108 u32 offset = vma->vm_pgoff << PAGE_SHIFT; 1109 int ret = -EINVAL, i; 1110 struct atomisp_device *isp = 1111 ((struct atomisp_video_pipe *)(q->priv_data))->isp; 1112 struct videobuf_vmalloc_memory *vm_mem; 1113 struct videobuf_mapping *map; 1114 1115 MAGIC_CHECK(q->int_ops->magic, MAGIC_QTYPE_OPS); 1116 if (!(vma->vm_flags & VM_WRITE) || !(vma->vm_flags & VM_SHARED)) { 1117 dev_err(isp->dev, "map appl bug: PROT_WRITE and MAP_SHARED are required\n"); 1118 return -EINVAL; 1119 } 1120 1121 mutex_lock(&q->vb_lock); 1122 for (i = 0; i < VIDEO_MAX_FRAME; i++) { 1123 struct videobuf_buffer *buf = q->bufs[i]; 1124 1125 if (!buf) 1126 continue; 1127 1128 map = kzalloc(sizeof(struct videobuf_mapping), GFP_KERNEL); 1129 if (!map) { 1130 mutex_unlock(&q->vb_lock); 1131 return -ENOMEM; 1132 } 1133 1134 buf->map = map; 1135 map->q = q; 1136 1137 buf->baddr = vma->vm_start; 1138 1139 if (buf && buf->memory == V4L2_MEMORY_MMAP && 1140 buf->boff == offset) { 1141 vm_mem = buf->priv; 1142 ret = frame_mmap(isp, vm_mem->vaddr, vma); 1143 vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; 1144 break; 1145 } 1146 } 1147 mutex_unlock(&q->vb_lock); 1148 1149 return ret; 1150 } 1151 1152 /* The input frame contains left and right padding that need to be removed. 1153 * There is always ISP_LEFT_PAD padding on the left side. 1154 * There is also padding on the right (padded_width - width). 1155 */ 1156 static int remove_pad_from_frame(struct atomisp_device *isp, 1157 struct ia_css_frame *in_frame, __u32 width, __u32 height) 1158 { 1159 unsigned int i; 1160 unsigned short *buffer; 1161 int ret = 0; 1162 ia_css_ptr load = in_frame->data; 1163 ia_css_ptr store = load; 1164 1165 buffer = kmalloc_array(width, sizeof(load), GFP_KERNEL); 1166 if (!buffer) 1167 return -ENOMEM; 1168 1169 load += ISP_LEFT_PAD; 1170 for (i = 0; i < height; i++) { 1171 ret = hmm_load(load, buffer, width * sizeof(load)); 1172 if (ret < 0) 1173 goto remove_pad_error; 1174 1175 ret = hmm_store(store, buffer, width * sizeof(store)); 1176 if (ret < 0) 1177 goto remove_pad_error; 1178 1179 load += in_frame->info.padded_width; 1180 store += width; 1181 } 1182 1183 remove_pad_error: 1184 kfree(buffer); 1185 return ret; 1186 } 1187 1188 static int atomisp_mmap(struct file *file, struct vm_area_struct *vma) 1189 { 1190 struct video_device *vdev = video_devdata(file); 1191 struct atomisp_device *isp = video_get_drvdata(vdev); 1192 struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev); 1193 struct atomisp_sub_device *asd = pipe->asd; 1194 struct ia_css_frame *raw_virt_addr; 1195 u32 start = vma->vm_start; 1196 u32 end = vma->vm_end; 1197 u32 size = end - start; 1198 u32 origin_size, new_size; 1199 int ret; 1200 1201 if (!asd) { 1202 dev_err(isp->dev, "%s(): asd is NULL, device is %s\n", 1203 __func__, vdev->name); 1204 return -EINVAL; 1205 } 1206 1207 if (!(vma->vm_flags & (VM_WRITE | VM_READ))) 1208 return -EACCES; 1209 1210 rt_mutex_lock(&isp->mutex); 1211 1212 if (!(vma->vm_flags & VM_SHARED)) { 1213 /* Map private buffer. 1214 * Set VM_SHARED to the flags since we need 1215 * to map the buffer page by page. 1216 * Without VM_SHARED, remap_pfn_range() treats 1217 * this kind of mapping as invalid. 1218 */ 1219 vma->vm_flags |= VM_SHARED; 1220 ret = hmm_mmap(vma, vma->vm_pgoff << PAGE_SHIFT); 1221 rt_mutex_unlock(&isp->mutex); 1222 return ret; 1223 } 1224 1225 /* mmap for ISP offline raw data */ 1226 if (atomisp_subdev_source_pad(vdev) 1227 == ATOMISP_SUBDEV_PAD_SOURCE_CAPTURE && 1228 vma->vm_pgoff == (ISP_PARAM_MMAP_OFFSET >> PAGE_SHIFT)) { 1229 new_size = pipe->pix.width * pipe->pix.height * 2; 1230 if (asd->params.online_process != 0) { 1231 ret = -EINVAL; 1232 goto error; 1233 } 1234 raw_virt_addr = asd->raw_output_frame; 1235 if (!raw_virt_addr) { 1236 dev_err(isp->dev, "Failed to request RAW frame\n"); 1237 ret = -EINVAL; 1238 goto error; 1239 } 1240 1241 ret = remove_pad_from_frame(isp, raw_virt_addr, 1242 pipe->pix.width, pipe->pix.height); 1243 if (ret < 0) { 1244 dev_err(isp->dev, "remove pad failed.\n"); 1245 goto error; 1246 } 1247 origin_size = raw_virt_addr->data_bytes; 1248 raw_virt_addr->data_bytes = new_size; 1249 1250 if (size != PAGE_ALIGN(new_size)) { 1251 dev_err(isp->dev, "incorrect size for mmap ISP Raw Frame\n"); 1252 ret = -EINVAL; 1253 goto error; 1254 } 1255 1256 if (frame_mmap(isp, raw_virt_addr, vma)) { 1257 dev_err(isp->dev, "frame_mmap failed.\n"); 1258 raw_virt_addr->data_bytes = origin_size; 1259 ret = -EAGAIN; 1260 goto error; 1261 } 1262 raw_virt_addr->data_bytes = origin_size; 1263 vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; 1264 rt_mutex_unlock(&isp->mutex); 1265 return 0; 1266 } 1267 1268 /* 1269 * mmap for normal frames 1270 */ 1271 if (size != pipe->pix.sizeimage) { 1272 dev_err(isp->dev, "incorrect size for mmap ISP frames\n"); 1273 ret = -EINVAL; 1274 goto error; 1275 } 1276 rt_mutex_unlock(&isp->mutex); 1277 1278 return atomisp_videobuf_mmap_mapper(&pipe->capq, vma); 1279 1280 error: 1281 rt_mutex_unlock(&isp->mutex); 1282 1283 return ret; 1284 } 1285 1286 static int atomisp_file_mmap(struct file *file, struct vm_area_struct *vma) 1287 { 1288 struct video_device *vdev = video_devdata(file); 1289 struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev); 1290 1291 return videobuf_mmap_mapper(&pipe->outq, vma); 1292 } 1293 1294 static __poll_t atomisp_poll(struct file *file, 1295 struct poll_table_struct *pt) 1296 { 1297 struct video_device *vdev = video_devdata(file); 1298 struct atomisp_device *isp = video_get_drvdata(vdev); 1299 struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev); 1300 1301 rt_mutex_lock(&isp->mutex); 1302 if (pipe->capq.streaming != 1) { 1303 rt_mutex_unlock(&isp->mutex); 1304 return EPOLLERR; 1305 } 1306 rt_mutex_unlock(&isp->mutex); 1307 1308 return videobuf_poll_stream(file, &pipe->capq, pt); 1309 } 1310 1311 const struct v4l2_file_operations atomisp_fops = { 1312 .owner = THIS_MODULE, 1313 .open = atomisp_open, 1314 .release = atomisp_release, 1315 .mmap = atomisp_mmap, 1316 .unlocked_ioctl = video_ioctl2, 1317 #ifdef CONFIG_COMPAT 1318 /* 1319 * this was removed because of bugs, the interface 1320 * needs to be made safe for compat tasks instead. 1321 .compat_ioctl32 = atomisp_compat_ioctl32, 1322 */ 1323 #endif 1324 .poll = atomisp_poll, 1325 }; 1326 1327 const struct v4l2_file_operations atomisp_file_fops = { 1328 .owner = THIS_MODULE, 1329 .open = atomisp_open, 1330 .release = atomisp_release, 1331 .mmap = atomisp_file_mmap, 1332 .unlocked_ioctl = video_ioctl2, 1333 #ifdef CONFIG_COMPAT 1334 /* .compat_ioctl32 = atomisp_compat_ioctl32, */ 1335 #endif 1336 .poll = atomisp_poll, 1337 }; 1338