1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (C) 2018 Intel Corporation 3 4 #include <linux/module.h> 5 #include <linux/pm_runtime.h> 6 7 #include <media/v4l2-event.h> 8 #include <media/v4l2-ioctl.h> 9 10 #include "ipu3.h" 11 #include "ipu3-dmamap.h" 12 13 /******************** v4l2_subdev_ops ********************/ 14 15 #define IPU3_RUNNING_MODE_VIDEO 0 16 #define IPU3_RUNNING_MODE_STILL 1 17 18 static int imgu_subdev_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) 19 { 20 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 21 struct imgu_v4l2_subdev, 22 subdev); 23 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 24 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[imgu_sd->pipe]; 25 struct v4l2_rect try_crop = { 26 .top = 0, 27 .left = 0, 28 }; 29 unsigned int i; 30 31 try_crop.width = 32 imgu_pipe->nodes[IMGU_NODE_IN].vdev_fmt.fmt.pix_mp.width; 33 try_crop.height = 34 imgu_pipe->nodes[IMGU_NODE_IN].vdev_fmt.fmt.pix_mp.height; 35 36 /* Initialize try_fmt */ 37 for (i = 0; i < IMGU_NODE_NUM; i++) { 38 struct v4l2_mbus_framefmt *try_fmt = 39 v4l2_subdev_get_try_format(sd, fh->pad, i); 40 41 try_fmt->width = try_crop.width; 42 try_fmt->height = try_crop.height; 43 try_fmt->code = imgu_pipe->nodes[i].pad_fmt.code; 44 try_fmt->field = V4L2_FIELD_NONE; 45 } 46 47 *v4l2_subdev_get_try_crop(sd, fh->pad, IMGU_NODE_IN) = try_crop; 48 *v4l2_subdev_get_try_compose(sd, fh->pad, IMGU_NODE_IN) = try_crop; 49 50 return 0; 51 } 52 53 static int imgu_subdev_s_stream(struct v4l2_subdev *sd, int enable) 54 { 55 int i; 56 unsigned int node; 57 int r = 0; 58 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 59 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 60 struct imgu_v4l2_subdev, 61 subdev); 62 unsigned int pipe = imgu_sd->pipe; 63 struct device *dev = &imgu->pci_dev->dev; 64 struct v4l2_pix_format_mplane *fmts[IPU3_CSS_QUEUES] = { NULL }; 65 struct v4l2_rect *rects[IPU3_CSS_RECTS] = { NULL }; 66 struct imgu_css_pipe *css_pipe = &imgu->css.pipes[pipe]; 67 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[pipe]; 68 69 dev_dbg(dev, "%s %d for pipe %u", __func__, enable, pipe); 70 /* grab ctrl after streamon and return after off */ 71 v4l2_ctrl_grab(imgu_sd->ctrl, enable); 72 73 if (!enable) { 74 imgu_sd->active = false; 75 return 0; 76 } 77 78 for (i = 0; i < IMGU_NODE_NUM; i++) 79 imgu_pipe->queue_enabled[i] = imgu_pipe->nodes[i].enabled; 80 81 /* This is handled specially */ 82 imgu_pipe->queue_enabled[IPU3_CSS_QUEUE_PARAMS] = false; 83 84 /* Initialize CSS formats */ 85 for (i = 0; i < IPU3_CSS_QUEUES; i++) { 86 node = imgu_map_node(imgu, i); 87 /* No need to reconfig meta nodes */ 88 if (node == IMGU_NODE_STAT_3A || node == IMGU_NODE_PARAMS) 89 continue; 90 fmts[i] = imgu_pipe->queue_enabled[node] ? 91 &imgu_pipe->nodes[node].vdev_fmt.fmt.pix_mp : NULL; 92 } 93 94 /* Enable VF output only when VF queue requested by user */ 95 css_pipe->vf_output_en = false; 96 if (imgu_pipe->nodes[IMGU_NODE_VF].enabled) 97 css_pipe->vf_output_en = true; 98 99 if (atomic_read(&imgu_sd->running_mode) == IPU3_RUNNING_MODE_VIDEO) 100 css_pipe->pipe_id = IPU3_CSS_PIPE_ID_VIDEO; 101 else 102 css_pipe->pipe_id = IPU3_CSS_PIPE_ID_CAPTURE; 103 104 dev_dbg(dev, "IPU3 pipe %u pipe_id %u", pipe, css_pipe->pipe_id); 105 106 rects[IPU3_CSS_RECT_EFFECTIVE] = &imgu_sd->rect.eff; 107 rects[IPU3_CSS_RECT_BDS] = &imgu_sd->rect.bds; 108 rects[IPU3_CSS_RECT_GDC] = &imgu_sd->rect.gdc; 109 110 r = imgu_css_fmt_set(&imgu->css, fmts, rects, pipe); 111 if (r) { 112 dev_err(dev, "failed to set initial formats pipe %u with (%d)", 113 pipe, r); 114 return r; 115 } 116 117 imgu_sd->active = true; 118 119 return 0; 120 } 121 122 static int imgu_subdev_get_fmt(struct v4l2_subdev *sd, 123 struct v4l2_subdev_pad_config *cfg, 124 struct v4l2_subdev_format *fmt) 125 { 126 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 127 struct v4l2_mbus_framefmt *mf; 128 struct imgu_media_pipe *imgu_pipe; 129 u32 pad = fmt->pad; 130 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 131 struct imgu_v4l2_subdev, 132 subdev); 133 unsigned int pipe = imgu_sd->pipe; 134 135 imgu_pipe = &imgu->imgu_pipe[pipe]; 136 if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 137 fmt->format = imgu_pipe->nodes[pad].pad_fmt; 138 } else { 139 mf = v4l2_subdev_get_try_format(sd, cfg, pad); 140 fmt->format = *mf; 141 } 142 143 return 0; 144 } 145 146 static int imgu_subdev_set_fmt(struct v4l2_subdev *sd, 147 struct v4l2_subdev_pad_config *cfg, 148 struct v4l2_subdev_format *fmt) 149 { 150 struct imgu_media_pipe *imgu_pipe; 151 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 152 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 153 struct imgu_v4l2_subdev, 154 subdev); 155 156 struct v4l2_mbus_framefmt *mf; 157 u32 pad = fmt->pad; 158 unsigned int pipe = imgu_sd->pipe; 159 160 dev_dbg(&imgu->pci_dev->dev, "set subdev %u pad %u fmt to [%ux%u]", 161 pipe, pad, fmt->format.width, fmt->format.height); 162 163 imgu_pipe = &imgu->imgu_pipe[pipe]; 164 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) 165 mf = v4l2_subdev_get_try_format(sd, cfg, pad); 166 else 167 mf = &imgu_pipe->nodes[pad].pad_fmt; 168 169 fmt->format.code = mf->code; 170 /* Clamp the w and h based on the hardware capabilities */ 171 if (imgu_sd->subdev_pads[pad].flags & MEDIA_PAD_FL_SOURCE) { 172 fmt->format.width = clamp(fmt->format.width, 173 IPU3_OUTPUT_MIN_WIDTH, 174 IPU3_OUTPUT_MAX_WIDTH); 175 fmt->format.height = clamp(fmt->format.height, 176 IPU3_OUTPUT_MIN_HEIGHT, 177 IPU3_OUTPUT_MAX_HEIGHT); 178 } else { 179 fmt->format.width = clamp(fmt->format.width, 180 IPU3_INPUT_MIN_WIDTH, 181 IPU3_INPUT_MAX_WIDTH); 182 fmt->format.height = clamp(fmt->format.height, 183 IPU3_INPUT_MIN_HEIGHT, 184 IPU3_INPUT_MAX_HEIGHT); 185 } 186 187 *mf = fmt->format; 188 189 return 0; 190 } 191 192 static int imgu_subdev_get_selection(struct v4l2_subdev *sd, 193 struct v4l2_subdev_pad_config *cfg, 194 struct v4l2_subdev_selection *sel) 195 { 196 struct v4l2_rect *try_sel, *r; 197 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 198 struct imgu_v4l2_subdev, 199 subdev); 200 201 if (sel->pad != IMGU_NODE_IN) 202 return -EINVAL; 203 204 switch (sel->target) { 205 case V4L2_SEL_TGT_CROP: 206 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); 207 r = &imgu_sd->rect.eff; 208 break; 209 case V4L2_SEL_TGT_COMPOSE: 210 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); 211 r = &imgu_sd->rect.bds; 212 break; 213 default: 214 return -EINVAL; 215 } 216 217 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) 218 sel->r = *try_sel; 219 else 220 sel->r = *r; 221 222 return 0; 223 } 224 225 static int imgu_subdev_set_selection(struct v4l2_subdev *sd, 226 struct v4l2_subdev_pad_config *cfg, 227 struct v4l2_subdev_selection *sel) 228 { 229 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 230 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 231 struct imgu_v4l2_subdev, 232 subdev); 233 struct v4l2_rect *rect, *try_sel; 234 235 dev_dbg(&imgu->pci_dev->dev, 236 "set subdev %u sel which %u target 0x%4x rect [%ux%u]", 237 imgu_sd->pipe, sel->which, sel->target, 238 sel->r.width, sel->r.height); 239 240 if (sel->pad != IMGU_NODE_IN) 241 return -EINVAL; 242 243 switch (sel->target) { 244 case V4L2_SEL_TGT_CROP: 245 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); 246 rect = &imgu_sd->rect.eff; 247 break; 248 case V4L2_SEL_TGT_COMPOSE: 249 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); 250 rect = &imgu_sd->rect.bds; 251 break; 252 default: 253 return -EINVAL; 254 } 255 256 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) 257 *try_sel = sel->r; 258 else 259 *rect = sel->r; 260 261 return 0; 262 } 263 264 /******************** media_entity_operations ********************/ 265 266 static int imgu_link_setup(struct media_entity *entity, 267 const struct media_pad *local, 268 const struct media_pad *remote, u32 flags) 269 { 270 struct imgu_media_pipe *imgu_pipe; 271 struct v4l2_subdev *sd = container_of(entity, struct v4l2_subdev, 272 entity); 273 struct imgu_device *imgu = v4l2_get_subdevdata(sd); 274 struct imgu_v4l2_subdev *imgu_sd = container_of(sd, 275 struct imgu_v4l2_subdev, 276 subdev); 277 unsigned int pipe = imgu_sd->pipe; 278 u32 pad = local->index; 279 280 WARN_ON(pad >= IMGU_NODE_NUM); 281 282 dev_dbg(&imgu->pci_dev->dev, "pipe %u pad %u is %s", pipe, pad, 283 flags & MEDIA_LNK_FL_ENABLED ? "enabled" : "disabled"); 284 285 imgu_pipe = &imgu->imgu_pipe[pipe]; 286 imgu_pipe->nodes[pad].enabled = flags & MEDIA_LNK_FL_ENABLED; 287 288 /* enable input node to enable the pipe */ 289 if (pad != IMGU_NODE_IN) 290 return 0; 291 292 if (flags & MEDIA_LNK_FL_ENABLED) 293 __set_bit(pipe, imgu->css.enabled_pipes); 294 else 295 __clear_bit(pipe, imgu->css.enabled_pipes); 296 297 dev_dbg(&imgu->pci_dev->dev, "pipe %u is %s", pipe, 298 flags & MEDIA_LNK_FL_ENABLED ? "enabled" : "disabled"); 299 300 return 0; 301 } 302 303 /******************** vb2_ops ********************/ 304 305 static int imgu_vb2_buf_init(struct vb2_buffer *vb) 306 { 307 struct sg_table *sg = vb2_dma_sg_plane_desc(vb, 0); 308 struct imgu_device *imgu = vb2_get_drv_priv(vb->vb2_queue); 309 struct imgu_buffer *buf = container_of(vb, 310 struct imgu_buffer, vid_buf.vbb.vb2_buf); 311 struct imgu_video_device *node = 312 container_of(vb->vb2_queue, struct imgu_video_device, vbq); 313 unsigned int queue = imgu_node_to_queue(node->id); 314 315 if (queue == IPU3_CSS_QUEUE_PARAMS) 316 return 0; 317 318 return imgu_dmamap_map_sg(imgu, sg->sgl, sg->nents, &buf->map); 319 } 320 321 /* Called when each buffer is freed */ 322 static void imgu_vb2_buf_cleanup(struct vb2_buffer *vb) 323 { 324 struct imgu_device *imgu = vb2_get_drv_priv(vb->vb2_queue); 325 struct imgu_buffer *buf = container_of(vb, 326 struct imgu_buffer, vid_buf.vbb.vb2_buf); 327 struct imgu_video_device *node = 328 container_of(vb->vb2_queue, struct imgu_video_device, vbq); 329 unsigned int queue = imgu_node_to_queue(node->id); 330 331 if (queue == IPU3_CSS_QUEUE_PARAMS) 332 return; 333 334 imgu_dmamap_unmap(imgu, &buf->map); 335 } 336 337 /* Transfer buffer ownership to me */ 338 static void imgu_vb2_buf_queue(struct vb2_buffer *vb) 339 { 340 struct imgu_device *imgu = vb2_get_drv_priv(vb->vb2_queue); 341 struct imgu_video_device *node = 342 container_of(vb->vb2_queue, struct imgu_video_device, vbq); 343 unsigned int queue = imgu_node_to_queue(node->id); 344 struct imgu_buffer *buf = container_of(vb, struct imgu_buffer, 345 vid_buf.vbb.vb2_buf); 346 unsigned long need_bytes; 347 unsigned long payload = vb2_get_plane_payload(vb, 0); 348 349 if (vb->vb2_queue->type == V4L2_BUF_TYPE_META_CAPTURE || 350 vb->vb2_queue->type == V4L2_BUF_TYPE_META_OUTPUT) 351 need_bytes = node->vdev_fmt.fmt.meta.buffersize; 352 else 353 need_bytes = node->vdev_fmt.fmt.pix_mp.plane_fmt[0].sizeimage; 354 355 if (queue == IPU3_CSS_QUEUE_PARAMS && payload && payload < need_bytes) { 356 dev_err(&imgu->pci_dev->dev, "invalid data size for params."); 357 vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); 358 return; 359 } 360 361 mutex_lock(&imgu->lock); 362 if (queue != IPU3_CSS_QUEUE_PARAMS) 363 imgu_css_buf_init(&buf->css_buf, queue, buf->map.daddr); 364 365 list_add_tail(&buf->vid_buf.list, &node->buffers); 366 mutex_unlock(&imgu->lock); 367 368 vb2_set_plane_payload(vb, 0, need_bytes); 369 370 if (imgu->streaming) 371 imgu_queue_buffers(imgu, false, node->pipe); 372 373 dev_dbg(&imgu->pci_dev->dev, "%s for pipe %u node %u", __func__, 374 node->pipe, node->id); 375 } 376 377 static int imgu_vb2_queue_setup(struct vb2_queue *vq, 378 unsigned int *num_buffers, 379 unsigned int *num_planes, 380 unsigned int sizes[], 381 struct device *alloc_devs[]) 382 { 383 struct imgu_device *imgu = vb2_get_drv_priv(vq); 384 struct imgu_video_device *node = 385 container_of(vq, struct imgu_video_device, vbq); 386 const struct v4l2_format *fmt = &node->vdev_fmt; 387 unsigned int size; 388 389 *num_buffers = clamp_val(*num_buffers, 1, VB2_MAX_FRAME); 390 alloc_devs[0] = &imgu->pci_dev->dev; 391 392 if (vq->type == V4L2_BUF_TYPE_META_CAPTURE || 393 vq->type == V4L2_BUF_TYPE_META_OUTPUT) 394 size = fmt->fmt.meta.buffersize; 395 else 396 size = fmt->fmt.pix_mp.plane_fmt[0].sizeimage; 397 398 if (*num_planes) { 399 if (sizes[0] < size) 400 return -EINVAL; 401 size = sizes[0]; 402 } 403 404 *num_planes = 1; 405 sizes[0] = size; 406 407 /* Initialize buffer queue */ 408 INIT_LIST_HEAD(&node->buffers); 409 410 return 0; 411 } 412 413 /* Check if all enabled video nodes are streaming, exception ignored */ 414 static bool imgu_all_nodes_streaming(struct imgu_device *imgu, 415 struct imgu_video_device *except) 416 { 417 unsigned int i, pipe, p; 418 struct imgu_video_device *node; 419 struct device *dev = &imgu->pci_dev->dev; 420 421 pipe = except->pipe; 422 if (!test_bit(pipe, imgu->css.enabled_pipes)) { 423 dev_warn(&imgu->pci_dev->dev, 424 "pipe %u link is not ready yet", pipe); 425 return false; 426 } 427 428 for_each_set_bit(p, imgu->css.enabled_pipes, IMGU_MAX_PIPE_NUM) { 429 for (i = 0; i < IMGU_NODE_NUM; i++) { 430 node = &imgu->imgu_pipe[p].nodes[i]; 431 dev_dbg(dev, "%s pipe %u queue %u name %s enabled = %u", 432 __func__, p, i, node->name, node->enabled); 433 if (node == except) 434 continue; 435 if (node->enabled && !vb2_start_streaming_called(&node->vbq)) 436 return false; 437 } 438 } 439 440 return true; 441 } 442 443 static void imgu_return_all_buffers(struct imgu_device *imgu, 444 struct imgu_video_device *node, 445 enum vb2_buffer_state state) 446 { 447 struct imgu_vb2_buffer *b, *b0; 448 449 /* Return all buffers */ 450 mutex_lock(&imgu->lock); 451 list_for_each_entry_safe(b, b0, &node->buffers, list) { 452 list_del(&b->list); 453 vb2_buffer_done(&b->vbb.vb2_buf, state); 454 } 455 mutex_unlock(&imgu->lock); 456 } 457 458 static int imgu_vb2_start_streaming(struct vb2_queue *vq, unsigned int count) 459 { 460 struct imgu_media_pipe *imgu_pipe; 461 struct imgu_device *imgu = vb2_get_drv_priv(vq); 462 struct device *dev = &imgu->pci_dev->dev; 463 struct imgu_video_device *node = 464 container_of(vq, struct imgu_video_device, vbq); 465 int r; 466 unsigned int pipe; 467 468 dev_dbg(dev, "%s node name %s pipe %u id %u", __func__, 469 node->name, node->pipe, node->id); 470 471 if (imgu->streaming) { 472 r = -EBUSY; 473 goto fail_return_bufs; 474 } 475 476 if (!node->enabled) { 477 dev_err(dev, "IMGU node is not enabled"); 478 r = -EINVAL; 479 goto fail_return_bufs; 480 } 481 482 pipe = node->pipe; 483 imgu_pipe = &imgu->imgu_pipe[pipe]; 484 r = media_pipeline_start(&node->vdev.entity, &imgu_pipe->pipeline); 485 if (r < 0) 486 goto fail_return_bufs; 487 488 489 if (!imgu_all_nodes_streaming(imgu, node)) 490 return 0; 491 492 for_each_set_bit(pipe, imgu->css.enabled_pipes, IMGU_MAX_PIPE_NUM) { 493 r = v4l2_subdev_call(&imgu->imgu_pipe[pipe].imgu_sd.subdev, 494 video, s_stream, 1); 495 if (r < 0) 496 goto fail_stop_pipeline; 497 } 498 499 /* Start streaming of the whole pipeline now */ 500 dev_dbg(dev, "IMGU streaming is ready to start"); 501 r = imgu_s_stream(imgu, true); 502 if (!r) 503 imgu->streaming = true; 504 505 return 0; 506 507 fail_stop_pipeline: 508 media_pipeline_stop(&node->vdev.entity); 509 fail_return_bufs: 510 imgu_return_all_buffers(imgu, node, VB2_BUF_STATE_QUEUED); 511 512 return r; 513 } 514 515 static void imgu_vb2_stop_streaming(struct vb2_queue *vq) 516 { 517 struct imgu_media_pipe *imgu_pipe; 518 struct imgu_device *imgu = vb2_get_drv_priv(vq); 519 struct device *dev = &imgu->pci_dev->dev; 520 struct imgu_video_device *node = 521 container_of(vq, struct imgu_video_device, vbq); 522 int r; 523 unsigned int pipe; 524 525 WARN_ON(!node->enabled); 526 527 pipe = node->pipe; 528 dev_dbg(dev, "Try to stream off node [%u][%u]", pipe, node->id); 529 imgu_pipe = &imgu->imgu_pipe[pipe]; 530 r = v4l2_subdev_call(&imgu_pipe->imgu_sd.subdev, video, s_stream, 0); 531 if (r) 532 dev_err(&imgu->pci_dev->dev, 533 "failed to stop subdev streaming\n"); 534 535 /* Was this the first node with streaming disabled? */ 536 if (imgu->streaming && imgu_all_nodes_streaming(imgu, node)) { 537 /* Yes, really stop streaming now */ 538 dev_dbg(dev, "IMGU streaming is ready to stop"); 539 r = imgu_s_stream(imgu, false); 540 if (!r) 541 imgu->streaming = false; 542 } 543 544 imgu_return_all_buffers(imgu, node, VB2_BUF_STATE_ERROR); 545 media_pipeline_stop(&node->vdev.entity); 546 } 547 548 /******************** v4l2_ioctl_ops ********************/ 549 550 #define VID_CAPTURE 0 551 #define VID_OUTPUT 1 552 #define DEF_VID_CAPTURE 0 553 #define DEF_VID_OUTPUT 1 554 555 struct imgu_fmt { 556 u32 fourcc; 557 u16 type; /* VID_CAPTURE or VID_OUTPUT not both */ 558 }; 559 560 /* format descriptions for capture and preview */ 561 static const struct imgu_fmt formats[] = { 562 { V4L2_PIX_FMT_NV12, VID_CAPTURE }, 563 { V4L2_PIX_FMT_IPU3_SGRBG10, VID_OUTPUT }, 564 { V4L2_PIX_FMT_IPU3_SBGGR10, VID_OUTPUT }, 565 { V4L2_PIX_FMT_IPU3_SGBRG10, VID_OUTPUT }, 566 { V4L2_PIX_FMT_IPU3_SRGGB10, VID_OUTPUT }, 567 }; 568 569 /* Find the first matched format, return default if not found */ 570 static const struct imgu_fmt *find_format(struct v4l2_format *f, u32 type) 571 { 572 unsigned int i; 573 574 for (i = 0; i < ARRAY_SIZE(formats); i++) { 575 if (formats[i].fourcc == f->fmt.pix_mp.pixelformat && 576 formats[i].type == type) 577 return &formats[i]; 578 } 579 580 return type == VID_CAPTURE ? &formats[DEF_VID_CAPTURE] : 581 &formats[DEF_VID_OUTPUT]; 582 } 583 584 static int imgu_vidioc_querycap(struct file *file, void *fh, 585 struct v4l2_capability *cap) 586 { 587 struct imgu_video_device *node = file_to_intel_imgu_node(file); 588 589 strscpy(cap->driver, IMGU_NAME, sizeof(cap->driver)); 590 strscpy(cap->card, IMGU_NAME, sizeof(cap->card)); 591 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", node->name); 592 593 return 0; 594 } 595 596 static int enum_fmts(struct v4l2_fmtdesc *f, u32 type) 597 { 598 unsigned int i, j; 599 600 for (i = j = 0; i < ARRAY_SIZE(formats); ++i) { 601 if (formats[i].type == type) { 602 if (j == f->index) 603 break; 604 ++j; 605 } 606 } 607 608 if (i < ARRAY_SIZE(formats)) { 609 f->pixelformat = formats[i].fourcc; 610 return 0; 611 } 612 613 return -EINVAL; 614 } 615 616 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 617 struct v4l2_fmtdesc *f) 618 { 619 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 620 return -EINVAL; 621 622 return enum_fmts(f, VID_CAPTURE); 623 } 624 625 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, 626 struct v4l2_fmtdesc *f) 627 { 628 if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 629 return -EINVAL; 630 631 return enum_fmts(f, VID_OUTPUT); 632 } 633 634 /* Propagate forward always the format from the CIO2 subdev */ 635 static int imgu_vidioc_g_fmt(struct file *file, void *fh, 636 struct v4l2_format *f) 637 { 638 struct imgu_video_device *node = file_to_intel_imgu_node(file); 639 640 f->fmt = node->vdev_fmt.fmt; 641 642 return 0; 643 } 644 645 /* 646 * Set input/output format. Unless it is just a try, this also resets 647 * selections (ie. effective and BDS resolutions) to defaults. 648 */ 649 static int imgu_fmt(struct imgu_device *imgu, unsigned int pipe, int node, 650 struct v4l2_format *f, bool try) 651 { 652 struct device *dev = &imgu->pci_dev->dev; 653 struct v4l2_pix_format_mplane *fmts[IPU3_CSS_QUEUES] = { NULL }; 654 struct v4l2_rect *rects[IPU3_CSS_RECTS] = { NULL }; 655 struct v4l2_mbus_framefmt pad_fmt; 656 unsigned int i, css_q; 657 int ret; 658 struct imgu_css_pipe *css_pipe = &imgu->css.pipes[pipe]; 659 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[pipe]; 660 struct imgu_v4l2_subdev *imgu_sd = &imgu_pipe->imgu_sd; 661 662 dev_dbg(dev, "set fmt node [%u][%u](try = %u)", pipe, node, try); 663 664 for (i = 0; i < IMGU_NODE_NUM; i++) 665 dev_dbg(dev, "IMGU pipe %u node %u enabled = %u", 666 pipe, i, imgu_pipe->nodes[i].enabled); 667 668 if (imgu_pipe->nodes[IMGU_NODE_VF].enabled) 669 css_pipe->vf_output_en = true; 670 671 if (atomic_read(&imgu_sd->running_mode) == IPU3_RUNNING_MODE_VIDEO) 672 css_pipe->pipe_id = IPU3_CSS_PIPE_ID_VIDEO; 673 else 674 css_pipe->pipe_id = IPU3_CSS_PIPE_ID_CAPTURE; 675 676 dev_dbg(dev, "IPU3 pipe %u pipe_id = %u", pipe, css_pipe->pipe_id); 677 678 for (i = 0; i < IPU3_CSS_QUEUES; i++) { 679 unsigned int inode = imgu_map_node(imgu, i); 680 681 /* Skip the meta node */ 682 if (inode == IMGU_NODE_STAT_3A || inode == IMGU_NODE_PARAMS) 683 continue; 684 685 if (try) { 686 fmts[i] = kmemdup(&imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp, 687 sizeof(struct v4l2_pix_format_mplane), 688 GFP_KERNEL); 689 if (!fmts[i]) { 690 ret = -ENOMEM; 691 goto out; 692 } 693 } else { 694 fmts[i] = &imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp; 695 } 696 697 /* CSS expects some format on OUT queue */ 698 if (i != IPU3_CSS_QUEUE_OUT && 699 !imgu_pipe->nodes[inode].enabled) 700 fmts[i] = NULL; 701 } 702 703 if (!try) { 704 /* eff and bds res got by imgu_s_sel */ 705 struct imgu_v4l2_subdev *imgu_sd = &imgu_pipe->imgu_sd; 706 707 rects[IPU3_CSS_RECT_EFFECTIVE] = &imgu_sd->rect.eff; 708 rects[IPU3_CSS_RECT_BDS] = &imgu_sd->rect.bds; 709 rects[IPU3_CSS_RECT_GDC] = &imgu_sd->rect.gdc; 710 711 /* suppose that pad fmt was set by subdev s_fmt before */ 712 pad_fmt = imgu_pipe->nodes[IMGU_NODE_IN].pad_fmt; 713 rects[IPU3_CSS_RECT_GDC]->width = pad_fmt.width; 714 rects[IPU3_CSS_RECT_GDC]->height = pad_fmt.height; 715 } 716 717 /* 718 * imgu doesn't set the node to the value given by user 719 * before we return success from this function, so set it here. 720 */ 721 css_q = imgu_node_to_queue(node); 722 if (!fmts[css_q]) { 723 ret = -EINVAL; 724 goto out; 725 } 726 *fmts[css_q] = f->fmt.pix_mp; 727 728 if (try) 729 ret = imgu_css_fmt_try(&imgu->css, fmts, rects, pipe); 730 else 731 ret = imgu_css_fmt_set(&imgu->css, fmts, rects, pipe); 732 733 /* ret is the binary number in the firmware blob */ 734 if (ret < 0) 735 goto out; 736 737 if (try) 738 f->fmt.pix_mp = *fmts[css_q]; 739 else 740 f->fmt = imgu_pipe->nodes[node].vdev_fmt.fmt; 741 742 out: 743 if (try) { 744 for (i = 0; i < IPU3_CSS_QUEUES; i++) 745 kfree(fmts[i]); 746 } 747 748 return ret; 749 } 750 751 static int imgu_try_fmt(struct file *file, void *fh, struct v4l2_format *f) 752 { 753 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; 754 const struct imgu_fmt *fmt; 755 756 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) 757 fmt = find_format(f, VID_CAPTURE); 758 else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 759 fmt = find_format(f, VID_OUTPUT); 760 else 761 return -EINVAL; 762 763 pixm->pixelformat = fmt->fourcc; 764 765 memset(pixm->plane_fmt[0].reserved, 0, 766 sizeof(pixm->plane_fmt[0].reserved)); 767 768 return 0; 769 } 770 771 static int imgu_vidioc_try_fmt(struct file *file, void *fh, 772 struct v4l2_format *f) 773 { 774 struct imgu_device *imgu = video_drvdata(file); 775 struct device *dev = &imgu->pci_dev->dev; 776 struct imgu_video_device *node = file_to_intel_imgu_node(file); 777 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; 778 int r; 779 780 dev_dbg(dev, "%s [%ux%u] for node %u\n", __func__, 781 pix_mp->width, pix_mp->height, node->id); 782 783 r = imgu_try_fmt(file, fh, f); 784 if (r) 785 return r; 786 787 return imgu_fmt(imgu, node->pipe, node->id, f, true); 788 } 789 790 static int imgu_vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f) 791 { 792 struct imgu_device *imgu = video_drvdata(file); 793 struct device *dev = &imgu->pci_dev->dev; 794 struct imgu_video_device *node = file_to_intel_imgu_node(file); 795 struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; 796 int r; 797 798 dev_dbg(dev, "%s [%ux%u] for node %u\n", __func__, 799 pix_mp->width, pix_mp->height, node->id); 800 801 r = imgu_try_fmt(file, fh, f); 802 if (r) 803 return r; 804 805 return imgu_fmt(imgu, node->pipe, node->id, f, false); 806 } 807 808 struct imgu_meta_fmt { 809 __u32 fourcc; 810 char *name; 811 }; 812 813 /* From drivers/media/v4l2-core/v4l2-ioctl.c */ 814 static const struct imgu_meta_fmt meta_fmts[] = { 815 { V4L2_META_FMT_IPU3_PARAMS, "IPU3 processing parameters" }, 816 { V4L2_META_FMT_IPU3_STAT_3A, "IPU3 3A statistics" }, 817 }; 818 819 static int imgu_meta_enum_format(struct file *file, void *fh, 820 struct v4l2_fmtdesc *fmt) 821 { 822 struct imgu_video_device *node = file_to_intel_imgu_node(file); 823 unsigned int i = fmt->type == V4L2_BUF_TYPE_META_OUTPUT ? 0 : 1; 824 825 /* Each node is dedicated to only one meta format */ 826 if (fmt->index > 0 || fmt->type != node->vbq.type) 827 return -EINVAL; 828 829 strscpy(fmt->description, meta_fmts[i].name, sizeof(fmt->description)); 830 fmt->pixelformat = meta_fmts[i].fourcc; 831 832 return 0; 833 } 834 835 static int imgu_vidioc_g_meta_fmt(struct file *file, void *fh, 836 struct v4l2_format *f) 837 { 838 struct imgu_video_device *node = file_to_intel_imgu_node(file); 839 840 if (f->type != node->vbq.type) 841 return -EINVAL; 842 843 f->fmt = node->vdev_fmt.fmt; 844 845 return 0; 846 } 847 848 static int imgu_vidioc_enum_input(struct file *file, void *fh, 849 struct v4l2_input *input) 850 { 851 if (input->index > 0) 852 return -EINVAL; 853 strscpy(input->name, "camera", sizeof(input->name)); 854 input->type = V4L2_INPUT_TYPE_CAMERA; 855 856 return 0; 857 } 858 859 static int imgu_vidioc_g_input(struct file *file, void *fh, unsigned int *input) 860 { 861 *input = 0; 862 863 return 0; 864 } 865 866 static int imgu_vidioc_s_input(struct file *file, void *fh, unsigned int input) 867 { 868 return input == 0 ? 0 : -EINVAL; 869 } 870 871 static int imgu_vidioc_enum_output(struct file *file, void *fh, 872 struct v4l2_output *output) 873 { 874 if (output->index > 0) 875 return -EINVAL; 876 strscpy(output->name, "camera", sizeof(output->name)); 877 output->type = V4L2_INPUT_TYPE_CAMERA; 878 879 return 0; 880 } 881 882 static int imgu_vidioc_g_output(struct file *file, void *fh, 883 unsigned int *output) 884 { 885 *output = 0; 886 887 return 0; 888 } 889 890 static int imgu_vidioc_s_output(struct file *file, void *fh, 891 unsigned int output) 892 { 893 return output == 0 ? 0 : -EINVAL; 894 } 895 896 /******************** function pointers ********************/ 897 898 static struct v4l2_subdev_internal_ops imgu_subdev_internal_ops = { 899 .open = imgu_subdev_open, 900 }; 901 902 static const struct v4l2_subdev_core_ops imgu_subdev_core_ops = { 903 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 904 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 905 }; 906 907 static const struct v4l2_subdev_video_ops imgu_subdev_video_ops = { 908 .s_stream = imgu_subdev_s_stream, 909 }; 910 911 static const struct v4l2_subdev_pad_ops imgu_subdev_pad_ops = { 912 .link_validate = v4l2_subdev_link_validate_default, 913 .get_fmt = imgu_subdev_get_fmt, 914 .set_fmt = imgu_subdev_set_fmt, 915 .get_selection = imgu_subdev_get_selection, 916 .set_selection = imgu_subdev_set_selection, 917 }; 918 919 static const struct v4l2_subdev_ops imgu_subdev_ops = { 920 .core = &imgu_subdev_core_ops, 921 .video = &imgu_subdev_video_ops, 922 .pad = &imgu_subdev_pad_ops, 923 }; 924 925 static const struct media_entity_operations imgu_media_ops = { 926 .link_setup = imgu_link_setup, 927 .link_validate = v4l2_subdev_link_validate, 928 }; 929 930 /****************** vb2_ops of the Q ********************/ 931 932 static const struct vb2_ops imgu_vb2_ops = { 933 .buf_init = imgu_vb2_buf_init, 934 .buf_cleanup = imgu_vb2_buf_cleanup, 935 .buf_queue = imgu_vb2_buf_queue, 936 .queue_setup = imgu_vb2_queue_setup, 937 .start_streaming = imgu_vb2_start_streaming, 938 .stop_streaming = imgu_vb2_stop_streaming, 939 .wait_prepare = vb2_ops_wait_prepare, 940 .wait_finish = vb2_ops_wait_finish, 941 }; 942 943 /****************** v4l2_file_operations *****************/ 944 945 static const struct v4l2_file_operations imgu_v4l2_fops = { 946 .unlocked_ioctl = video_ioctl2, 947 .open = v4l2_fh_open, 948 .release = vb2_fop_release, 949 .poll = vb2_fop_poll, 950 .mmap = vb2_fop_mmap, 951 }; 952 953 /******************** v4l2_ioctl_ops ********************/ 954 955 static const struct v4l2_ioctl_ops imgu_v4l2_ioctl_ops = { 956 .vidioc_querycap = imgu_vidioc_querycap, 957 958 .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap, 959 .vidioc_g_fmt_vid_cap_mplane = imgu_vidioc_g_fmt, 960 .vidioc_s_fmt_vid_cap_mplane = imgu_vidioc_s_fmt, 961 .vidioc_try_fmt_vid_cap_mplane = imgu_vidioc_try_fmt, 962 963 .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out, 964 .vidioc_g_fmt_vid_out_mplane = imgu_vidioc_g_fmt, 965 .vidioc_s_fmt_vid_out_mplane = imgu_vidioc_s_fmt, 966 .vidioc_try_fmt_vid_out_mplane = imgu_vidioc_try_fmt, 967 968 .vidioc_enum_output = imgu_vidioc_enum_output, 969 .vidioc_g_output = imgu_vidioc_g_output, 970 .vidioc_s_output = imgu_vidioc_s_output, 971 972 .vidioc_enum_input = imgu_vidioc_enum_input, 973 .vidioc_g_input = imgu_vidioc_g_input, 974 .vidioc_s_input = imgu_vidioc_s_input, 975 976 /* buffer queue management */ 977 .vidioc_reqbufs = vb2_ioctl_reqbufs, 978 .vidioc_create_bufs = vb2_ioctl_create_bufs, 979 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 980 .vidioc_querybuf = vb2_ioctl_querybuf, 981 .vidioc_qbuf = vb2_ioctl_qbuf, 982 .vidioc_dqbuf = vb2_ioctl_dqbuf, 983 .vidioc_streamon = vb2_ioctl_streamon, 984 .vidioc_streamoff = vb2_ioctl_streamoff, 985 .vidioc_expbuf = vb2_ioctl_expbuf, 986 }; 987 988 static const struct v4l2_ioctl_ops imgu_v4l2_meta_ioctl_ops = { 989 .vidioc_querycap = imgu_vidioc_querycap, 990 991 /* meta capture */ 992 .vidioc_enum_fmt_meta_cap = imgu_meta_enum_format, 993 .vidioc_g_fmt_meta_cap = imgu_vidioc_g_meta_fmt, 994 .vidioc_s_fmt_meta_cap = imgu_vidioc_g_meta_fmt, 995 .vidioc_try_fmt_meta_cap = imgu_vidioc_g_meta_fmt, 996 997 /* meta output */ 998 .vidioc_enum_fmt_meta_out = imgu_meta_enum_format, 999 .vidioc_g_fmt_meta_out = imgu_vidioc_g_meta_fmt, 1000 .vidioc_s_fmt_meta_out = imgu_vidioc_g_meta_fmt, 1001 .vidioc_try_fmt_meta_out = imgu_vidioc_g_meta_fmt, 1002 1003 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1004 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1005 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1006 .vidioc_querybuf = vb2_ioctl_querybuf, 1007 .vidioc_qbuf = vb2_ioctl_qbuf, 1008 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1009 .vidioc_streamon = vb2_ioctl_streamon, 1010 .vidioc_streamoff = vb2_ioctl_streamoff, 1011 .vidioc_expbuf = vb2_ioctl_expbuf, 1012 }; 1013 1014 static int imgu_sd_s_ctrl(struct v4l2_ctrl *ctrl) 1015 { 1016 struct imgu_v4l2_subdev *imgu_sd = 1017 container_of(ctrl->handler, struct imgu_v4l2_subdev, ctrl_handler); 1018 struct imgu_device *imgu = v4l2_get_subdevdata(&imgu_sd->subdev); 1019 struct device *dev = &imgu->pci_dev->dev; 1020 1021 dev_dbg(dev, "set val %d to ctrl 0x%8x for subdev %u", 1022 ctrl->val, ctrl->id, imgu_sd->pipe); 1023 1024 switch (ctrl->id) { 1025 case V4L2_CID_INTEL_IPU3_MODE: 1026 atomic_set(&imgu_sd->running_mode, ctrl->val); 1027 return 0; 1028 default: 1029 return -EINVAL; 1030 } 1031 } 1032 1033 static const struct v4l2_ctrl_ops imgu_subdev_ctrl_ops = { 1034 .s_ctrl = imgu_sd_s_ctrl, 1035 }; 1036 1037 static const char * const imgu_ctrl_mode_strings[] = { 1038 "Video mode", 1039 "Still mode", 1040 }; 1041 1042 static const struct v4l2_ctrl_config imgu_subdev_ctrl_mode = { 1043 .ops = &imgu_subdev_ctrl_ops, 1044 .id = V4L2_CID_INTEL_IPU3_MODE, 1045 .name = "IPU3 Pipe Mode", 1046 .type = V4L2_CTRL_TYPE_MENU, 1047 .max = ARRAY_SIZE(imgu_ctrl_mode_strings) - 1, 1048 .def = IPU3_RUNNING_MODE_VIDEO, 1049 .qmenu = imgu_ctrl_mode_strings, 1050 }; 1051 1052 /******************** Framework registration ********************/ 1053 1054 /* helper function to config node's video properties */ 1055 static void imgu_node_to_v4l2(u32 node, struct video_device *vdev, 1056 struct v4l2_format *f) 1057 { 1058 u32 cap; 1059 1060 /* Should not happen */ 1061 WARN_ON(node >= IMGU_NODE_NUM); 1062 1063 switch (node) { 1064 case IMGU_NODE_IN: 1065 cap = V4L2_CAP_VIDEO_OUTPUT_MPLANE; 1066 f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 1067 vdev->ioctl_ops = &imgu_v4l2_ioctl_ops; 1068 break; 1069 case IMGU_NODE_PARAMS: 1070 cap = V4L2_CAP_META_OUTPUT; 1071 f->type = V4L2_BUF_TYPE_META_OUTPUT; 1072 f->fmt.meta.dataformat = V4L2_META_FMT_IPU3_PARAMS; 1073 vdev->ioctl_ops = &imgu_v4l2_meta_ioctl_ops; 1074 imgu_css_meta_fmt_set(&f->fmt.meta); 1075 break; 1076 case IMGU_NODE_STAT_3A: 1077 cap = V4L2_CAP_META_CAPTURE; 1078 f->type = V4L2_BUF_TYPE_META_CAPTURE; 1079 f->fmt.meta.dataformat = V4L2_META_FMT_IPU3_STAT_3A; 1080 vdev->ioctl_ops = &imgu_v4l2_meta_ioctl_ops; 1081 imgu_css_meta_fmt_set(&f->fmt.meta); 1082 break; 1083 default: 1084 cap = V4L2_CAP_VIDEO_CAPTURE_MPLANE; 1085 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 1086 vdev->ioctl_ops = &imgu_v4l2_ioctl_ops; 1087 } 1088 1089 vdev->device_caps = V4L2_CAP_STREAMING | cap; 1090 } 1091 1092 static int imgu_v4l2_subdev_register(struct imgu_device *imgu, 1093 struct imgu_v4l2_subdev *imgu_sd, 1094 unsigned int pipe) 1095 { 1096 int i, r; 1097 struct v4l2_ctrl_handler *hdl = &imgu_sd->ctrl_handler; 1098 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[pipe]; 1099 1100 /* Initialize subdev media entity */ 1101 r = media_entity_pads_init(&imgu_sd->subdev.entity, IMGU_NODE_NUM, 1102 imgu_sd->subdev_pads); 1103 if (r) { 1104 dev_err(&imgu->pci_dev->dev, 1105 "failed initialize subdev media entity (%d)\n", r); 1106 return r; 1107 } 1108 imgu_sd->subdev.entity.ops = &imgu_media_ops; 1109 for (i = 0; i < IMGU_NODE_NUM; i++) { 1110 imgu_sd->subdev_pads[i].flags = imgu_pipe->nodes[i].output ? 1111 MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE; 1112 } 1113 1114 /* Initialize subdev */ 1115 v4l2_subdev_init(&imgu_sd->subdev, &imgu_subdev_ops); 1116 imgu_sd->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_STATISTICS; 1117 imgu_sd->subdev.internal_ops = &imgu_subdev_internal_ops; 1118 imgu_sd->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | 1119 V4L2_SUBDEV_FL_HAS_EVENTS; 1120 snprintf(imgu_sd->subdev.name, sizeof(imgu_sd->subdev.name), 1121 "%s %u", IMGU_NAME, pipe); 1122 v4l2_set_subdevdata(&imgu_sd->subdev, imgu); 1123 atomic_set(&imgu_sd->running_mode, IPU3_RUNNING_MODE_VIDEO); 1124 v4l2_ctrl_handler_init(hdl, 1); 1125 imgu_sd->subdev.ctrl_handler = hdl; 1126 imgu_sd->ctrl = v4l2_ctrl_new_custom(hdl, &imgu_subdev_ctrl_mode, NULL); 1127 if (hdl->error) { 1128 r = hdl->error; 1129 dev_err(&imgu->pci_dev->dev, 1130 "failed to create subdev v4l2 ctrl with err %d", r); 1131 goto fail_subdev; 1132 } 1133 r = v4l2_device_register_subdev(&imgu->v4l2_dev, &imgu_sd->subdev); 1134 if (r) { 1135 dev_err(&imgu->pci_dev->dev, 1136 "failed initialize subdev (%d)\n", r); 1137 goto fail_subdev; 1138 } 1139 1140 imgu_sd->pipe = pipe; 1141 return 0; 1142 1143 fail_subdev: 1144 v4l2_ctrl_handler_free(imgu_sd->subdev.ctrl_handler); 1145 media_entity_cleanup(&imgu_sd->subdev.entity); 1146 1147 return r; 1148 } 1149 1150 static int imgu_v4l2_node_setup(struct imgu_device *imgu, unsigned int pipe, 1151 int node_num) 1152 { 1153 int r; 1154 u32 flags; 1155 struct v4l2_mbus_framefmt def_bus_fmt = { 0 }; 1156 struct v4l2_pix_format_mplane def_pix_fmt = { 0 }; 1157 struct device *dev = &imgu->pci_dev->dev; 1158 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[pipe]; 1159 struct v4l2_subdev *sd = &imgu_pipe->imgu_sd.subdev; 1160 struct imgu_video_device *node = &imgu_pipe->nodes[node_num]; 1161 struct video_device *vdev = &node->vdev; 1162 struct vb2_queue *vbq = &node->vbq; 1163 1164 /* Initialize formats to default values */ 1165 def_bus_fmt.width = 1920; 1166 def_bus_fmt.height = 1080; 1167 def_bus_fmt.code = MEDIA_BUS_FMT_FIXED; 1168 def_bus_fmt.field = V4L2_FIELD_NONE; 1169 def_bus_fmt.colorspace = V4L2_COLORSPACE_RAW; 1170 def_bus_fmt.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; 1171 def_bus_fmt.quantization = V4L2_QUANTIZATION_DEFAULT; 1172 def_bus_fmt.xfer_func = V4L2_XFER_FUNC_DEFAULT; 1173 1174 def_pix_fmt.width = def_bus_fmt.width; 1175 def_pix_fmt.height = def_bus_fmt.height; 1176 def_pix_fmt.field = def_bus_fmt.field; 1177 def_pix_fmt.num_planes = 1; 1178 def_pix_fmt.plane_fmt[0].bytesperline = def_pix_fmt.width * 2; 1179 def_pix_fmt.plane_fmt[0].sizeimage = 1180 def_pix_fmt.height * def_pix_fmt.plane_fmt[0].bytesperline; 1181 def_pix_fmt.flags = 0; 1182 def_pix_fmt.colorspace = def_bus_fmt.colorspace; 1183 def_pix_fmt.ycbcr_enc = def_bus_fmt.ycbcr_enc; 1184 def_pix_fmt.quantization = def_bus_fmt.quantization; 1185 def_pix_fmt.xfer_func = def_bus_fmt.xfer_func; 1186 1187 /* Initialize miscellaneous variables */ 1188 mutex_init(&node->lock); 1189 INIT_LIST_HEAD(&node->buffers); 1190 1191 /* Initialize formats to default values */ 1192 node->pad_fmt = def_bus_fmt; 1193 node->id = node_num; 1194 node->pipe = pipe; 1195 imgu_node_to_v4l2(node_num, vdev, &node->vdev_fmt); 1196 if (node->vdev_fmt.type == 1197 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || 1198 node->vdev_fmt.type == 1199 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { 1200 def_pix_fmt.pixelformat = node->output ? 1201 V4L2_PIX_FMT_IPU3_SGRBG10 : 1202 V4L2_PIX_FMT_NV12; 1203 node->vdev_fmt.fmt.pix_mp = def_pix_fmt; 1204 } 1205 1206 /* Initialize media entities */ 1207 r = media_entity_pads_init(&vdev->entity, 1, &node->vdev_pad); 1208 if (r) { 1209 dev_err(dev, "failed initialize media entity (%d)\n", r); 1210 mutex_destroy(&node->lock); 1211 return r; 1212 } 1213 node->vdev_pad.flags = node->output ? 1214 MEDIA_PAD_FL_SOURCE : MEDIA_PAD_FL_SINK; 1215 vdev->entity.ops = NULL; 1216 1217 /* Initialize vbq */ 1218 vbq->type = node->vdev_fmt.type; 1219 vbq->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF; 1220 vbq->ops = &imgu_vb2_ops; 1221 vbq->mem_ops = &vb2_dma_sg_memops; 1222 if (imgu->buf_struct_size <= 0) 1223 imgu->buf_struct_size = 1224 sizeof(struct imgu_vb2_buffer); 1225 vbq->buf_struct_size = imgu->buf_struct_size; 1226 vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1227 /* can streamon w/o buffers */ 1228 vbq->min_buffers_needed = 0; 1229 vbq->drv_priv = imgu; 1230 vbq->lock = &node->lock; 1231 r = vb2_queue_init(vbq); 1232 if (r) { 1233 dev_err(dev, "failed to initialize video queue (%d)", r); 1234 media_entity_cleanup(&vdev->entity); 1235 return r; 1236 } 1237 1238 /* Initialize vdev */ 1239 snprintf(vdev->name, sizeof(vdev->name), "%s %u %s", 1240 IMGU_NAME, pipe, node->name); 1241 vdev->release = video_device_release_empty; 1242 vdev->fops = &imgu_v4l2_fops; 1243 vdev->lock = &node->lock; 1244 vdev->v4l2_dev = &imgu->v4l2_dev; 1245 vdev->queue = &node->vbq; 1246 vdev->vfl_dir = node->output ? VFL_DIR_TX : VFL_DIR_RX; 1247 video_set_drvdata(vdev, imgu); 1248 r = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1249 if (r) { 1250 dev_err(dev, "failed to register video device (%d)", r); 1251 media_entity_cleanup(&vdev->entity); 1252 return r; 1253 } 1254 1255 /* Create link between video node and the subdev pad */ 1256 flags = 0; 1257 if (node->enabled) 1258 flags |= MEDIA_LNK_FL_ENABLED; 1259 if (node->output) { 1260 r = media_create_pad_link(&vdev->entity, 0, &sd->entity, 1261 node_num, flags); 1262 } else { 1263 r = media_create_pad_link(&sd->entity, node_num, &vdev->entity, 1264 0, flags); 1265 } 1266 if (r) { 1267 dev_err(dev, "failed to create pad link (%d)", r); 1268 video_unregister_device(vdev); 1269 return r; 1270 } 1271 1272 return 0; 1273 } 1274 1275 static void imgu_v4l2_nodes_cleanup_pipe(struct imgu_device *imgu, 1276 unsigned int pipe, int node) 1277 { 1278 int i; 1279 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[pipe]; 1280 1281 for (i = 0; i < node; i++) { 1282 video_unregister_device(&imgu_pipe->nodes[i].vdev); 1283 media_entity_cleanup(&imgu_pipe->nodes[i].vdev.entity); 1284 mutex_destroy(&imgu_pipe->nodes[i].lock); 1285 } 1286 } 1287 1288 static int imgu_v4l2_nodes_setup_pipe(struct imgu_device *imgu, int pipe) 1289 { 1290 int i, r; 1291 1292 for (i = 0; i < IMGU_NODE_NUM; i++) { 1293 r = imgu_v4l2_node_setup(imgu, pipe, i); 1294 if (r) 1295 goto cleanup; 1296 } 1297 1298 return 0; 1299 1300 cleanup: 1301 imgu_v4l2_nodes_cleanup_pipe(imgu, pipe, i); 1302 return r; 1303 } 1304 1305 static void imgu_v4l2_subdev_cleanup(struct imgu_device *imgu, unsigned int i) 1306 { 1307 struct imgu_media_pipe *imgu_pipe = &imgu->imgu_pipe[i]; 1308 1309 v4l2_device_unregister_subdev(&imgu_pipe->imgu_sd.subdev); 1310 v4l2_ctrl_handler_free(imgu_pipe->imgu_sd.subdev.ctrl_handler); 1311 media_entity_cleanup(&imgu_pipe->imgu_sd.subdev.entity); 1312 } 1313 1314 static void imgu_v4l2_cleanup_pipes(struct imgu_device *imgu, unsigned int pipe) 1315 { 1316 int i; 1317 1318 for (i = 0; i < pipe; i++) { 1319 imgu_v4l2_nodes_cleanup_pipe(imgu, i, IMGU_NODE_NUM); 1320 imgu_v4l2_subdev_cleanup(imgu, i); 1321 } 1322 } 1323 1324 static int imgu_v4l2_register_pipes(struct imgu_device *imgu) 1325 { 1326 struct imgu_media_pipe *imgu_pipe; 1327 int i, r; 1328 1329 for (i = 0; i < IMGU_MAX_PIPE_NUM; i++) { 1330 imgu_pipe = &imgu->imgu_pipe[i]; 1331 r = imgu_v4l2_subdev_register(imgu, &imgu_pipe->imgu_sd, i); 1332 if (r) { 1333 dev_err(&imgu->pci_dev->dev, 1334 "failed to register subdev%u ret (%d)\n", i, r); 1335 goto pipes_cleanup; 1336 } 1337 r = imgu_v4l2_nodes_setup_pipe(imgu, i); 1338 if (r) { 1339 imgu_v4l2_subdev_cleanup(imgu, i); 1340 goto pipes_cleanup; 1341 } 1342 } 1343 1344 return 0; 1345 1346 pipes_cleanup: 1347 imgu_v4l2_cleanup_pipes(imgu, i); 1348 return r; 1349 } 1350 1351 int imgu_v4l2_register(struct imgu_device *imgu) 1352 { 1353 int r; 1354 1355 /* Initialize miscellaneous variables */ 1356 imgu->streaming = false; 1357 1358 /* Set up media device */ 1359 media_device_pci_init(&imgu->media_dev, imgu->pci_dev, IMGU_NAME); 1360 1361 /* Set up v4l2 device */ 1362 imgu->v4l2_dev.mdev = &imgu->media_dev; 1363 imgu->v4l2_dev.ctrl_handler = NULL; 1364 r = v4l2_device_register(&imgu->pci_dev->dev, &imgu->v4l2_dev); 1365 if (r) { 1366 dev_err(&imgu->pci_dev->dev, 1367 "failed to register V4L2 device (%d)\n", r); 1368 goto fail_v4l2_dev; 1369 } 1370 1371 r = imgu_v4l2_register_pipes(imgu); 1372 if (r) { 1373 dev_err(&imgu->pci_dev->dev, 1374 "failed to register pipes (%d)\n", r); 1375 goto fail_v4l2_pipes; 1376 } 1377 1378 r = v4l2_device_register_subdev_nodes(&imgu->v4l2_dev); 1379 if (r) { 1380 dev_err(&imgu->pci_dev->dev, 1381 "failed to register subdevs (%d)\n", r); 1382 goto fail_subdevs; 1383 } 1384 1385 r = media_device_register(&imgu->media_dev); 1386 if (r) { 1387 dev_err(&imgu->pci_dev->dev, 1388 "failed to register media device (%d)\n", r); 1389 goto fail_subdevs; 1390 } 1391 1392 return 0; 1393 1394 fail_subdevs: 1395 imgu_v4l2_cleanup_pipes(imgu, IMGU_MAX_PIPE_NUM); 1396 fail_v4l2_pipes: 1397 v4l2_device_unregister(&imgu->v4l2_dev); 1398 fail_v4l2_dev: 1399 media_device_cleanup(&imgu->media_dev); 1400 1401 return r; 1402 } 1403 1404 int imgu_v4l2_unregister(struct imgu_device *imgu) 1405 { 1406 media_device_unregister(&imgu->media_dev); 1407 imgu_v4l2_cleanup_pipes(imgu, IMGU_MAX_PIPE_NUM); 1408 v4l2_device_unregister(&imgu->v4l2_dev); 1409 media_device_cleanup(&imgu->media_dev); 1410 1411 return 0; 1412 } 1413 1414 void imgu_v4l2_buffer_done(struct vb2_buffer *vb, 1415 enum vb2_buffer_state state) 1416 { 1417 struct imgu_vb2_buffer *b = 1418 container_of(vb, struct imgu_vb2_buffer, vbb.vb2_buf); 1419 1420 list_del(&b->list); 1421 vb2_buffer_done(&b->vbb.vb2_buf, state); 1422 } 1423