Commit | Line | Data |
---|---|---|
26e0ca22 LP |
1 | /* |
2 | * vsp1_video.c -- R-Car VSP1 Video Node | |
3 | * | |
139c9286 | 4 | * Copyright (C) 2013-2015 Renesas Electronics Corporation |
26e0ca22 LP |
5 | * |
6 | * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
14 | #include <linux/list.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/mutex.h> | |
26e0ca22 LP |
17 | #include <linux/slab.h> |
18 | #include <linux/v4l2-mediabus.h> | |
19 | #include <linux/videodev2.h> | |
dba4a180 | 20 | #include <linux/wait.h> |
26e0ca22 LP |
21 | |
22 | #include <media/media-entity.h> | |
23 | #include <media/v4l2-dev.h> | |
24 | #include <media/v4l2-fh.h> | |
25 | #include <media/v4l2-ioctl.h> | |
26 | #include <media/v4l2-subdev.h> | |
c139990e | 27 | #include <media/videobuf2-v4l2.h> |
26e0ca22 LP |
28 | #include <media/videobuf2-dma-contig.h> |
29 | ||
30 | #include "vsp1.h" | |
629bb6d4 | 31 | #include "vsp1_bru.h" |
351bbf99 | 32 | #include "vsp1_dl.h" |
26e0ca22 | 33 | #include "vsp1_entity.h" |
dba4a180 | 34 | #include "vsp1_pipe.h" |
26e0ca22 | 35 | #include "vsp1_rwpf.h" |
bdc2df62 | 36 | #include "vsp1_uds.h" |
26e0ca22 LP |
37 | #include "vsp1_video.h" |
38 | ||
39 | #define VSP1_VIDEO_DEF_FORMAT V4L2_PIX_FMT_YUYV | |
40 | #define VSP1_VIDEO_DEF_WIDTH 1024 | |
41 | #define VSP1_VIDEO_DEF_HEIGHT 768 | |
42 | ||
43 | #define VSP1_VIDEO_MIN_WIDTH 2U | |
44 | #define VSP1_VIDEO_MAX_WIDTH 8190U | |
45 | #define VSP1_VIDEO_MIN_HEIGHT 2U | |
46 | #define VSP1_VIDEO_MAX_HEIGHT 8190U | |
47 | ||
48 | /* ----------------------------------------------------------------------------- | |
49 | * Helper functions | |
50 | */ | |
51 | ||
26e0ca22 LP |
52 | static struct v4l2_subdev * |
53 | vsp1_video_remote_subdev(struct media_pad *local, u32 *pad) | |
54 | { | |
55 | struct media_pad *remote; | |
56 | ||
57 | remote = media_entity_remote_pad(local); | |
3efdf62c | 58 | if (!remote || !is_media_entity_v4l2_subdev(remote->entity)) |
26e0ca22 LP |
59 | return NULL; |
60 | ||
61 | if (pad) | |
62 | *pad = remote->index; | |
63 | ||
64 | return media_entity_to_v4l2_subdev(remote->entity); | |
65 | } | |
66 | ||
67 | static int vsp1_video_verify_format(struct vsp1_video *video) | |
68 | { | |
69 | struct v4l2_subdev_format fmt; | |
70 | struct v4l2_subdev *subdev; | |
71 | int ret; | |
72 | ||
73 | subdev = vsp1_video_remote_subdev(&video->pad, &fmt.pad); | |
74 | if (subdev == NULL) | |
75 | return -EINVAL; | |
76 | ||
77 | fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
78 | ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt); | |
79 | if (ret < 0) | |
80 | return ret == -ENOIOCTLCMD ? -EINVAL : ret; | |
81 | ||
86960eec LP |
82 | if (video->rwpf->fmtinfo->mbus != fmt.format.code || |
83 | video->rwpf->format.height != fmt.format.height || | |
84 | video->rwpf->format.width != fmt.format.width) | |
26e0ca22 LP |
85 | return -EINVAL; |
86 | ||
87 | return 0; | |
88 | } | |
89 | ||
90 | static int __vsp1_video_try_format(struct vsp1_video *video, | |
91 | struct v4l2_pix_format_mplane *pix, | |
92 | const struct vsp1_format_info **fmtinfo) | |
93 | { | |
56bfef3e LP |
94 | static const u32 xrgb_formats[][2] = { |
95 | { V4L2_PIX_FMT_RGB444, V4L2_PIX_FMT_XRGB444 }, | |
96 | { V4L2_PIX_FMT_RGB555, V4L2_PIX_FMT_XRGB555 }, | |
97 | { V4L2_PIX_FMT_BGR32, V4L2_PIX_FMT_XBGR32 }, | |
98 | { V4L2_PIX_FMT_RGB32, V4L2_PIX_FMT_XRGB32 }, | |
99 | }; | |
100 | ||
26e0ca22 LP |
101 | const struct vsp1_format_info *info; |
102 | unsigned int width = pix->width; | |
103 | unsigned int height = pix->height; | |
104 | unsigned int i; | |
105 | ||
56bfef3e LP |
106 | /* Backward compatibility: replace deprecated RGB formats by their XRGB |
107 | * equivalent. This selects the format older userspace applications want | |
108 | * while still exposing the new format. | |
109 | */ | |
110 | for (i = 0; i < ARRAY_SIZE(xrgb_formats); ++i) { | |
111 | if (xrgb_formats[i][0] == pix->pixelformat) { | |
112 | pix->pixelformat = xrgb_formats[i][1]; | |
113 | break; | |
114 | } | |
115 | } | |
116 | ||
26e0ca22 LP |
117 | /* Retrieve format information and select the default format if the |
118 | * requested format isn't supported. | |
119 | */ | |
120 | info = vsp1_get_format_info(pix->pixelformat); | |
121 | if (info == NULL) | |
122 | info = vsp1_get_format_info(VSP1_VIDEO_DEF_FORMAT); | |
123 | ||
124 | pix->pixelformat = info->fourcc; | |
125 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
126 | pix->field = V4L2_FIELD_NONE; | |
127 | memset(pix->reserved, 0, sizeof(pix->reserved)); | |
128 | ||
129 | /* Align the width and height for YUV 4:2:2 and 4:2:0 formats. */ | |
130 | width = round_down(width, info->hsub); | |
131 | height = round_down(height, info->vsub); | |
132 | ||
133 | /* Clamp the width and height. */ | |
134 | pix->width = clamp(width, VSP1_VIDEO_MIN_WIDTH, VSP1_VIDEO_MAX_WIDTH); | |
135 | pix->height = clamp(height, VSP1_VIDEO_MIN_HEIGHT, | |
136 | VSP1_VIDEO_MAX_HEIGHT); | |
137 | ||
138 | /* Compute and clamp the stride and image size. While not documented in | |
139 | * the datasheet, strides not aligned to a multiple of 128 bytes result | |
140 | * in image corruption. | |
141 | */ | |
df5c3e7c | 142 | for (i = 0; i < min(info->planes, 2U); ++i) { |
26e0ca22 LP |
143 | unsigned int hsub = i > 0 ? info->hsub : 1; |
144 | unsigned int vsub = i > 0 ? info->vsub : 1; | |
145 | unsigned int align = 128; | |
146 | unsigned int bpl; | |
147 | ||
148 | bpl = clamp_t(unsigned int, pix->plane_fmt[i].bytesperline, | |
149 | pix->width / hsub * info->bpp[i] / 8, | |
150 | round_down(65535U, align)); | |
151 | ||
152 | pix->plane_fmt[i].bytesperline = round_up(bpl, align); | |
153 | pix->plane_fmt[i].sizeimage = pix->plane_fmt[i].bytesperline | |
154 | * pix->height / vsub; | |
155 | } | |
156 | ||
157 | if (info->planes == 3) { | |
158 | /* The second and third planes must have the same stride. */ | |
159 | pix->plane_fmt[2].bytesperline = pix->plane_fmt[1].bytesperline; | |
160 | pix->plane_fmt[2].sizeimage = pix->plane_fmt[1].sizeimage; | |
161 | } | |
162 | ||
163 | pix->num_planes = info->planes; | |
164 | ||
165 | if (fmtinfo) | |
166 | *fmtinfo = info; | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
26e0ca22 LP |
171 | /* ----------------------------------------------------------------------------- |
172 | * Pipeline Management | |
173 | */ | |
174 | ||
76c29755 LP |
175 | /* |
176 | * vsp1_video_complete_buffer - Complete the current buffer | |
177 | * @video: the video node | |
178 | * | |
179 | * This function completes the current buffer by filling its sequence number, | |
180 | * time stamp and payload size, and hands it back to the videobuf core. | |
181 | * | |
182 | * When operating in DU output mode (deep pipeline to the DU through the LIF), | |
183 | * the VSP1 needs to constantly supply frames to the display. In that case, if | |
184 | * no other buffer is queued, reuse the one that has just been processed instead | |
185 | * of handing it back to the videobuf core. | |
186 | * | |
187 | * Return the next queued buffer or NULL if the queue is empty. | |
188 | */ | |
189 | static struct vsp1_vb2_buffer * | |
190 | vsp1_video_complete_buffer(struct vsp1_video *video) | |
191 | { | |
192 | struct vsp1_pipeline *pipe = video->rwpf->pipe; | |
193 | struct vsp1_vb2_buffer *next = NULL; | |
194 | struct vsp1_vb2_buffer *done; | |
195 | unsigned long flags; | |
196 | unsigned int i; | |
197 | ||
198 | spin_lock_irqsave(&video->irqlock, flags); | |
199 | ||
200 | if (list_empty(&video->irqqueue)) { | |
201 | spin_unlock_irqrestore(&video->irqlock, flags); | |
202 | return NULL; | |
203 | } | |
204 | ||
205 | done = list_first_entry(&video->irqqueue, | |
206 | struct vsp1_vb2_buffer, queue); | |
207 | ||
208 | /* In DU output mode reuse the buffer if the list is singular. */ | |
209 | if (pipe->lif && list_is_singular(&video->irqqueue)) { | |
210 | spin_unlock_irqrestore(&video->irqlock, flags); | |
211 | return done; | |
212 | } | |
213 | ||
214 | list_del(&done->queue); | |
215 | ||
216 | if (!list_empty(&video->irqqueue)) | |
217 | next = list_first_entry(&video->irqqueue, | |
218 | struct vsp1_vb2_buffer, queue); | |
219 | ||
220 | spin_unlock_irqrestore(&video->irqlock, flags); | |
221 | ||
0c1a41b5 | 222 | done->buf.sequence = pipe->sequence; |
76c29755 LP |
223 | done->buf.vb2_buf.timestamp = ktime_get_ns(); |
224 | for (i = 0; i < done->buf.vb2_buf.num_planes; ++i) | |
225 | vb2_set_plane_payload(&done->buf.vb2_buf, i, | |
226 | vb2_plane_size(&done->buf.vb2_buf, i)); | |
227 | vb2_buffer_done(&done->buf.vb2_buf, VB2_BUF_STATE_DONE); | |
228 | ||
229 | return next; | |
230 | } | |
231 | ||
232 | static void vsp1_video_frame_end(struct vsp1_pipeline *pipe, | |
233 | struct vsp1_rwpf *rwpf) | |
234 | { | |
235 | struct vsp1_video *video = rwpf->video; | |
236 | struct vsp1_vb2_buffer *buf; | |
237 | unsigned long flags; | |
238 | ||
239 | buf = vsp1_video_complete_buffer(video); | |
240 | if (buf == NULL) | |
241 | return; | |
242 | ||
243 | spin_lock_irqsave(&pipe->irqlock, flags); | |
244 | ||
245 | video->rwpf->mem = buf->mem; | |
246 | pipe->buffers_ready |= 1 << video->pipe_index; | |
247 | ||
248 | spin_unlock_irqrestore(&pipe->irqlock, flags); | |
249 | } | |
250 | ||
251 | static void vsp1_video_pipeline_run(struct vsp1_pipeline *pipe) | |
252 | { | |
253 | struct vsp1_device *vsp1 = pipe->output->entity.vsp1; | |
254 | unsigned int i; | |
255 | ||
256 | if (!pipe->dl) | |
257 | pipe->dl = vsp1_dl_list_get(pipe->output->dlm); | |
258 | ||
259 | for (i = 0; i < vsp1->info->rpf_count; ++i) { | |
260 | struct vsp1_rwpf *rwpf = pipe->inputs[i]; | |
261 | ||
262 | if (rwpf) | |
263 | vsp1_rwpf_set_memory(rwpf, pipe->dl); | |
264 | } | |
265 | ||
266 | if (!pipe->lif) | |
267 | vsp1_rwpf_set_memory(pipe->output, pipe->dl); | |
268 | ||
269 | vsp1_dl_list_commit(pipe->dl); | |
270 | pipe->dl = NULL; | |
271 | ||
272 | vsp1_pipeline_run(pipe); | |
273 | } | |
274 | ||
275 | static void vsp1_video_pipeline_frame_end(struct vsp1_pipeline *pipe) | |
276 | { | |
277 | struct vsp1_device *vsp1 = pipe->output->entity.vsp1; | |
278 | enum vsp1_pipeline_state state; | |
279 | unsigned long flags; | |
280 | unsigned int i; | |
281 | ||
282 | /* Complete buffers on all video nodes. */ | |
283 | for (i = 0; i < vsp1->info->rpf_count; ++i) { | |
284 | if (!pipe->inputs[i]) | |
285 | continue; | |
286 | ||
287 | vsp1_video_frame_end(pipe, pipe->inputs[i]); | |
288 | } | |
289 | ||
290 | vsp1_video_frame_end(pipe, pipe->output); | |
291 | ||
292 | spin_lock_irqsave(&pipe->irqlock, flags); | |
293 | ||
294 | state = pipe->state; | |
295 | pipe->state = VSP1_PIPELINE_STOPPED; | |
296 | ||
297 | /* If a stop has been requested, mark the pipeline as stopped and | |
298 | * return. Otherwise restart the pipeline if ready. | |
299 | */ | |
300 | if (state == VSP1_PIPELINE_STOPPING) | |
301 | wake_up(&pipe->wq); | |
302 | else if (vsp1_pipeline_ready(pipe)) | |
303 | vsp1_video_pipeline_run(pipe); | |
304 | ||
305 | spin_unlock_irqrestore(&pipe->irqlock, flags); | |
306 | } | |
307 | ||
d2219824 LP |
308 | static int vsp1_video_pipeline_build_branch(struct vsp1_pipeline *pipe, |
309 | struct vsp1_rwpf *input, | |
310 | struct vsp1_rwpf *output) | |
26e0ca22 | 311 | { |
54b5a749 | 312 | struct media_entity_enum ent_enum; |
6b1446bc | 313 | struct vsp1_entity *entity; |
26e0ca22 | 314 | struct media_pad *pad; |
bdc2df62 | 315 | bool bru_found = false; |
6b1446bc | 316 | int ret; |
26e0ca22 | 317 | |
6b1446bc LP |
318 | ret = media_entity_enum_init(&ent_enum, &input->entity.vsp1->media_dev); |
319 | if (ret < 0) | |
320 | return ret; | |
54b5a749 | 321 | |
26e0ca22 LP |
322 | pad = media_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]); |
323 | ||
324 | while (1) { | |
54b5a749 | 325 | if (pad == NULL) { |
6b1446bc | 326 | ret = -EPIPE; |
54b5a749 SA |
327 | goto out; |
328 | } | |
26e0ca22 LP |
329 | |
330 | /* We've reached a video node, that shouldn't have happened. */ | |
54b5a749 | 331 | if (!is_media_entity_v4l2_subdev(pad->entity)) { |
6b1446bc | 332 | ret = -EPIPE; |
54b5a749 SA |
333 | goto out; |
334 | } | |
26e0ca22 | 335 | |
54b5a749 SA |
336 | entity = to_vsp1_entity( |
337 | media_entity_to_v4l2_subdev(pad->entity)); | |
26e0ca22 | 338 | |
b7e5107e LP |
339 | /* A BRU is present in the pipeline, store the BRU input pad |
340 | * number in the input RPF for use when configuring the RPF. | |
629bb6d4 LP |
341 | */ |
342 | if (entity->type == VSP1_ENTITY_BRU) { | |
343 | struct vsp1_bru *bru = to_bru(&entity->subdev); | |
6418b4d6 LP |
344 | |
345 | bru->inputs[pad->index].rpf = input; | |
b7e5107e | 346 | input->bru_input = pad->index; |
bdc2df62 LP |
347 | |
348 | bru_found = true; | |
629bb6d4 LP |
349 | } |
350 | ||
26e0ca22 LP |
351 | /* We've reached the WPF, we're done. */ |
352 | if (entity->type == VSP1_ENTITY_WPF) | |
353 | break; | |
354 | ||
355 | /* Ensure the branch has no loop. */ | |
54b5a749 SA |
356 | if (media_entity_enum_test_and_set(&ent_enum, |
357 | &entity->subdev.entity)) { | |
6b1446bc | 358 | ret = -EPIPE; |
54b5a749 SA |
359 | goto out; |
360 | } | |
26e0ca22 LP |
361 | |
362 | /* UDS can't be chained. */ | |
363 | if (entity->type == VSP1_ENTITY_UDS) { | |
54b5a749 | 364 | if (pipe->uds) { |
6b1446bc | 365 | ret = -EPIPE; |
54b5a749 SA |
366 | goto out; |
367 | } | |
bdc2df62 LP |
368 | |
369 | pipe->uds = entity; | |
370 | pipe->uds_input = bru_found ? pipe->bru | |
371 | : &input->entity; | |
26e0ca22 LP |
372 | } |
373 | ||
374 | /* Follow the source link. The link setup operations ensure | |
375 | * that the output fan-out can't be more than one, there is thus | |
376 | * no need to verify here that only a single source link is | |
377 | * activated. | |
378 | */ | |
379 | pad = &entity->pads[entity->source_pad]; | |
380 | pad = media_entity_remote_pad(pad); | |
381 | } | |
382 | ||
383 | /* The last entity must be the output WPF. */ | |
384 | if (entity != &output->entity) | |
6b1446bc | 385 | ret = -EPIPE; |
26e0ca22 | 386 | |
54b5a749 SA |
387 | out: |
388 | media_entity_enum_cleanup(&ent_enum); | |
389 | ||
6b1446bc | 390 | return ret; |
26e0ca22 LP |
391 | } |
392 | ||
d2219824 LP |
393 | static int vsp1_video_pipeline_build(struct vsp1_pipeline *pipe, |
394 | struct vsp1_video *video) | |
26e0ca22 LP |
395 | { |
396 | struct media_entity_graph graph; | |
397 | struct media_entity *entity = &video->video.entity; | |
d10c9894 | 398 | struct media_device *mdev = entity->graph_obj.mdev; |
26e0ca22 LP |
399 | unsigned int i; |
400 | int ret; | |
401 | ||
26e0ca22 | 402 | /* Walk the graph to locate the entities and video nodes. */ |
c1a5f1bc | 403 | ret = media_entity_graph_walk_init(&graph, mdev); |
a0cdac56 | 404 | if (ret) |
c1a5f1bc | 405 | return ret; |
c1a5f1bc | 406 | |
26e0ca22 LP |
407 | media_entity_graph_walk_start(&graph, entity); |
408 | ||
409 | while ((entity = media_entity_graph_walk_next(&graph))) { | |
410 | struct v4l2_subdev *subdev; | |
411 | struct vsp1_rwpf *rwpf; | |
412 | struct vsp1_entity *e; | |
413 | ||
02650ebd | 414 | if (!is_media_entity_v4l2_subdev(entity)) |
26e0ca22 | 415 | continue; |
26e0ca22 LP |
416 | |
417 | subdev = media_entity_to_v4l2_subdev(entity); | |
418 | e = to_vsp1_entity(subdev); | |
419 | list_add_tail(&e->list_pipe, &pipe->entities); | |
420 | ||
421 | if (e->type == VSP1_ENTITY_RPF) { | |
422 | rwpf = to_rwpf(subdev); | |
96bfa6a5 LP |
423 | pipe->inputs[rwpf->entity.index] = rwpf; |
424 | rwpf->video->pipe_index = ++pipe->num_inputs; | |
ff7e97c9 | 425 | rwpf->pipe = pipe; |
26e0ca22 LP |
426 | } else if (e->type == VSP1_ENTITY_WPF) { |
427 | rwpf = to_rwpf(subdev); | |
f8562f21 | 428 | pipe->output = rwpf; |
faf2644d | 429 | rwpf->video->pipe_index = 0; |
ff7e97c9 | 430 | rwpf->pipe = pipe; |
26e0ca22 LP |
431 | } else if (e->type == VSP1_ENTITY_LIF) { |
432 | pipe->lif = e; | |
629bb6d4 LP |
433 | } else if (e->type == VSP1_ENTITY_BRU) { |
434 | pipe->bru = e; | |
26e0ca22 LP |
435 | } |
436 | } | |
437 | ||
c1a5f1bc SA |
438 | media_entity_graph_walk_cleanup(&graph); |
439 | ||
26e0ca22 | 440 | /* We need one output and at least one input. */ |
a0cdac56 LP |
441 | if (pipe->num_inputs == 0 || !pipe->output) |
442 | return -EPIPE; | |
26e0ca22 LP |
443 | |
444 | /* Follow links downstream for each input and make sure the graph | |
445 | * contains no loop and that all branches end at the output WPF. | |
446 | */ | |
5aa2eb3c | 447 | for (i = 0; i < video->vsp1->info->rpf_count; ++i) { |
96bfa6a5 LP |
448 | if (!pipe->inputs[i]) |
449 | continue; | |
450 | ||
d2219824 LP |
451 | ret = vsp1_video_pipeline_build_branch(pipe, pipe->inputs[i], |
452 | pipe->output); | |
26e0ca22 | 453 | if (ret < 0) |
a0cdac56 | 454 | return ret; |
26e0ca22 LP |
455 | } |
456 | ||
457 | return 0; | |
26e0ca22 LP |
458 | } |
459 | ||
945f1276 LP |
460 | static int vsp1_video_pipeline_init(struct vsp1_pipeline *pipe, |
461 | struct vsp1_video *video) | |
26e0ca22 | 462 | { |
a0cdac56 LP |
463 | vsp1_pipeline_init(pipe); |
464 | ||
465 | pipe->frame_end = vsp1_video_pipeline_frame_end; | |
466 | ||
467 | return vsp1_video_pipeline_build(pipe, video); | |
468 | } | |
469 | ||
470 | static struct vsp1_pipeline *vsp1_video_pipeline_get(struct vsp1_video *video) | |
471 | { | |
472 | struct vsp1_pipeline *pipe; | |
26e0ca22 LP |
473 | int ret; |
474 | ||
a0cdac56 LP |
475 | /* Get a pipeline object for the video node. If a pipeline has already |
476 | * been allocated just increment its reference count and return it. | |
477 | * Otherwise allocate a new pipeline and initialize it, it will be freed | |
478 | * when the last reference is released. | |
479 | */ | |
480 | if (!video->rwpf->pipe) { | |
481 | pipe = kzalloc(sizeof(*pipe), GFP_KERNEL); | |
482 | if (!pipe) | |
483 | return ERR_PTR(-ENOMEM); | |
26e0ca22 | 484 | |
a0cdac56 LP |
485 | ret = vsp1_video_pipeline_init(pipe, video); |
486 | if (ret < 0) { | |
487 | vsp1_pipeline_reset(pipe); | |
488 | kfree(pipe); | |
489 | return ERR_PTR(ret); | |
490 | } | |
491 | } else { | |
492 | pipe = video->rwpf->pipe; | |
493 | kref_get(&pipe->kref); | |
26e0ca22 LP |
494 | } |
495 | ||
a0cdac56 | 496 | return pipe; |
26e0ca22 LP |
497 | } |
498 | ||
a0cdac56 | 499 | static void vsp1_video_pipeline_release(struct kref *kref) |
26e0ca22 | 500 | { |
a0cdac56 | 501 | struct vsp1_pipeline *pipe = container_of(kref, typeof(*pipe), kref); |
26e0ca22 | 502 | |
a0cdac56 LP |
503 | vsp1_pipeline_reset(pipe); |
504 | kfree(pipe); | |
505 | } | |
26e0ca22 | 506 | |
a0cdac56 LP |
507 | static void vsp1_video_pipeline_put(struct vsp1_pipeline *pipe) |
508 | { | |
509 | struct media_device *mdev = &pipe->output->entity.vsp1->media_dev; | |
510 | ||
511 | mutex_lock(&mdev->graph_mutex); | |
512 | kref_put(&pipe->kref, vsp1_video_pipeline_release); | |
513 | mutex_unlock(&mdev->graph_mutex); | |
26e0ca22 LP |
514 | } |
515 | ||
26e0ca22 LP |
516 | /* ----------------------------------------------------------------------------- |
517 | * videobuf2 Queue Operations | |
518 | */ | |
519 | ||
520 | static int | |
df9ecb0c | 521 | vsp1_video_queue_setup(struct vb2_queue *vq, |
26e0ca22 LP |
522 | unsigned int *nbuffers, unsigned int *nplanes, |
523 | unsigned int sizes[], void *alloc_ctxs[]) | |
524 | { | |
525 | struct vsp1_video *video = vb2_get_drv_priv(vq); | |
86960eec | 526 | const struct v4l2_pix_format_mplane *format = &video->rwpf->format; |
26e0ca22 LP |
527 | unsigned int i; |
528 | ||
df9ecb0c HV |
529 | if (*nplanes) { |
530 | if (*nplanes != format->num_planes) | |
26e0ca22 LP |
531 | return -EINVAL; |
532 | ||
df9ecb0c HV |
533 | for (i = 0; i < *nplanes; i++) { |
534 | if (sizes[i] < format->plane_fmt[i].sizeimage) | |
535 | return -EINVAL; | |
536 | alloc_ctxs[i] = video->alloc_ctx; | |
537 | } | |
538 | return 0; | |
26e0ca22 LP |
539 | } |
540 | ||
541 | *nplanes = format->num_planes; | |
542 | ||
543 | for (i = 0; i < format->num_planes; ++i) { | |
544 | sizes[i] = format->plane_fmt[i].sizeimage; | |
545 | alloc_ctxs[i] = video->alloc_ctx; | |
546 | } | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | static int vsp1_video_buffer_prepare(struct vb2_buffer *vb) | |
552 | { | |
2d700715 | 553 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
26e0ca22 | 554 | struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue); |
f7ebf3ca | 555 | struct vsp1_vb2_buffer *buf = to_vsp1_vb2_buffer(vbuf); |
86960eec | 556 | const struct v4l2_pix_format_mplane *format = &video->rwpf->format; |
26e0ca22 LP |
557 | unsigned int i; |
558 | ||
559 | if (vb->num_planes < format->num_planes) | |
560 | return -EINVAL; | |
561 | ||
26e0ca22 | 562 | for (i = 0; i < vb->num_planes; ++i) { |
b58faa95 | 563 | buf->mem.addr[i] = vb2_dma_contig_plane_dma_addr(vb, i); |
26e0ca22 | 564 | |
351bbf99 | 565 | if (vb2_plane_size(vb, i) < format->plane_fmt[i].sizeimage) |
26e0ca22 LP |
566 | return -EINVAL; |
567 | } | |
568 | ||
351bbf99 | 569 | for ( ; i < 3; ++i) |
4d346be5 | 570 | buf->mem.addr[i] = 0; |
4d346be5 | 571 | |
26e0ca22 LP |
572 | return 0; |
573 | } | |
574 | ||
575 | static void vsp1_video_buffer_queue(struct vb2_buffer *vb) | |
576 | { | |
2d700715 | 577 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
26e0ca22 | 578 | struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue); |
ff7e97c9 | 579 | struct vsp1_pipeline *pipe = video->rwpf->pipe; |
f7ebf3ca | 580 | struct vsp1_vb2_buffer *buf = to_vsp1_vb2_buffer(vbuf); |
26e0ca22 LP |
581 | unsigned long flags; |
582 | bool empty; | |
583 | ||
584 | spin_lock_irqsave(&video->irqlock, flags); | |
585 | empty = list_empty(&video->irqqueue); | |
586 | list_add_tail(&buf->queue, &video->irqqueue); | |
587 | spin_unlock_irqrestore(&video->irqlock, flags); | |
588 | ||
589 | if (!empty) | |
590 | return; | |
591 | ||
592 | spin_lock_irqsave(&pipe->irqlock, flags); | |
593 | ||
351bbf99 | 594 | video->rwpf->mem = buf->mem; |
26e0ca22 LP |
595 | pipe->buffers_ready |= 1 << video->pipe_index; |
596 | ||
597 | if (vb2_is_streaming(&video->queue) && | |
598 | vsp1_pipeline_ready(pipe)) | |
351bbf99 | 599 | vsp1_video_pipeline_run(pipe); |
26e0ca22 LP |
600 | |
601 | spin_unlock_irqrestore(&pipe->irqlock, flags); | |
602 | } | |
603 | ||
351bbf99 LP |
604 | static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe) |
605 | { | |
606 | struct vsp1_entity *entity; | |
351bbf99 LP |
607 | |
608 | /* Prepare the display list. */ | |
609 | pipe->dl = vsp1_dl_list_get(pipe->output->dlm); | |
610 | if (!pipe->dl) | |
611 | return -ENOMEM; | |
612 | ||
613 | if (pipe->uds) { | |
614 | struct vsp1_uds *uds = to_uds(&pipe->uds->subdev); | |
615 | ||
616 | /* If a BRU is present in the pipeline before the UDS, the alpha | |
617 | * component doesn't need to be scaled as the BRU output alpha | |
618 | * value is fixed to 255. Otherwise we need to scale the alpha | |
619 | * component only when available at the input RPF. | |
620 | */ | |
621 | if (pipe->uds_input->type == VSP1_ENTITY_BRU) { | |
622 | uds->scale_alpha = false; | |
623 | } else { | |
624 | struct vsp1_rwpf *rpf = | |
625 | to_rwpf(&pipe->uds_input->subdev); | |
626 | ||
627 | uds->scale_alpha = rpf->fmtinfo->alpha; | |
628 | } | |
629 | } | |
630 | ||
631 | list_for_each_entry(entity, &pipe->entities, list_pipe) { | |
5e8dbbf3 | 632 | vsp1_entity_route_setup(entity, pipe->dl); |
351bbf99 | 633 | |
7b905f05 | 634 | if (entity->ops->configure) |
83dd019d | 635 | entity->ops->configure(entity, pipe, pipe->dl); |
351bbf99 LP |
636 | } |
637 | ||
7b905f05 | 638 | return 0; |
351bbf99 LP |
639 | } |
640 | ||
26e0ca22 LP |
641 | static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count) |
642 | { | |
643 | struct vsp1_video *video = vb2_get_drv_priv(vq); | |
ff7e97c9 | 644 | struct vsp1_pipeline *pipe = video->rwpf->pipe; |
26e0ca22 LP |
645 | unsigned long flags; |
646 | int ret; | |
647 | ||
648 | mutex_lock(&pipe->lock); | |
2f2db2f2 | 649 | if (pipe->stream_count == pipe->num_inputs) { |
351bbf99 LP |
650 | ret = vsp1_video_setup_pipeline(pipe); |
651 | if (ret < 0) { | |
652 | mutex_unlock(&pipe->lock); | |
653 | return ret; | |
26e0ca22 LP |
654 | } |
655 | } | |
656 | ||
657 | pipe->stream_count++; | |
658 | mutex_unlock(&pipe->lock); | |
659 | ||
660 | spin_lock_irqsave(&pipe->irqlock, flags); | |
661 | if (vsp1_pipeline_ready(pipe)) | |
351bbf99 | 662 | vsp1_video_pipeline_run(pipe); |
26e0ca22 LP |
663 | spin_unlock_irqrestore(&pipe->irqlock, flags); |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
e37559b2 | 668 | static void vsp1_video_stop_streaming(struct vb2_queue *vq) |
26e0ca22 LP |
669 | { |
670 | struct vsp1_video *video = vb2_get_drv_priv(vq); | |
ff7e97c9 | 671 | struct vsp1_pipeline *pipe = video->rwpf->pipe; |
f7ebf3ca | 672 | struct vsp1_vb2_buffer *buffer; |
26e0ca22 LP |
673 | unsigned long flags; |
674 | int ret; | |
675 | ||
676 | mutex_lock(&pipe->lock); | |
b4dfb9b3 | 677 | if (--pipe->stream_count == pipe->num_inputs) { |
26e0ca22 LP |
678 | /* Stop the pipeline. */ |
679 | ret = vsp1_pipeline_stop(pipe); | |
680 | if (ret == -ETIMEDOUT) | |
681 | dev_err(video->vsp1->dev, "pipeline stop timeout\n"); | |
351bbf99 LP |
682 | |
683 | vsp1_dl_list_put(pipe->dl); | |
684 | pipe->dl = NULL; | |
26e0ca22 LP |
685 | } |
686 | mutex_unlock(&pipe->lock); | |
687 | ||
26e0ca22 | 688 | media_entity_pipeline_stop(&video->video.entity); |
a0cdac56 | 689 | vsp1_video_pipeline_put(pipe); |
26e0ca22 LP |
690 | |
691 | /* Remove all buffers from the IRQ queue. */ | |
692 | spin_lock_irqsave(&video->irqlock, flags); | |
9df04e9d | 693 | list_for_each_entry(buffer, &video->irqqueue, queue) |
2d700715 | 694 | vb2_buffer_done(&buffer->buf.vb2_buf, VB2_BUF_STATE_ERROR); |
26e0ca22 LP |
695 | INIT_LIST_HEAD(&video->irqqueue); |
696 | spin_unlock_irqrestore(&video->irqlock, flags); | |
26e0ca22 LP |
697 | } |
698 | ||
eb9163d3 | 699 | static const struct vb2_ops vsp1_video_queue_qops = { |
26e0ca22 LP |
700 | .queue_setup = vsp1_video_queue_setup, |
701 | .buf_prepare = vsp1_video_buffer_prepare, | |
702 | .buf_queue = vsp1_video_buffer_queue, | |
703 | .wait_prepare = vb2_ops_wait_prepare, | |
704 | .wait_finish = vb2_ops_wait_finish, | |
705 | .start_streaming = vsp1_video_start_streaming, | |
706 | .stop_streaming = vsp1_video_stop_streaming, | |
707 | }; | |
708 | ||
709 | /* ----------------------------------------------------------------------------- | |
710 | * V4L2 ioctls | |
711 | */ | |
712 | ||
713 | static int | |
714 | vsp1_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap) | |
715 | { | |
716 | struct v4l2_fh *vfh = file->private_data; | |
717 | struct vsp1_video *video = to_vsp1_video(vfh->vdev); | |
718 | ||
719 | cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING | |
720 | | V4L2_CAP_VIDEO_CAPTURE_MPLANE | |
721 | | V4L2_CAP_VIDEO_OUTPUT_MPLANE; | |
722 | ||
723 | if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
724 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | |
725 | | V4L2_CAP_STREAMING; | |
726 | else | |
727 | cap->device_caps = V4L2_CAP_VIDEO_OUTPUT_MPLANE | |
728 | | V4L2_CAP_STREAMING; | |
729 | ||
730 | strlcpy(cap->driver, "vsp1", sizeof(cap->driver)); | |
731 | strlcpy(cap->card, video->video.name, sizeof(cap->card)); | |
732 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", | |
733 | dev_name(video->vsp1->dev)); | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
738 | static int | |
739 | vsp1_video_get_format(struct file *file, void *fh, struct v4l2_format *format) | |
740 | { | |
741 | struct v4l2_fh *vfh = file->private_data; | |
742 | struct vsp1_video *video = to_vsp1_video(vfh->vdev); | |
743 | ||
744 | if (format->type != video->queue.type) | |
745 | return -EINVAL; | |
746 | ||
747 | mutex_lock(&video->lock); | |
86960eec | 748 | format->fmt.pix_mp = video->rwpf->format; |
26e0ca22 LP |
749 | mutex_unlock(&video->lock); |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static int | |
755 | vsp1_video_try_format(struct file *file, void *fh, struct v4l2_format *format) | |
756 | { | |
757 | struct v4l2_fh *vfh = file->private_data; | |
758 | struct vsp1_video *video = to_vsp1_video(vfh->vdev); | |
759 | ||
760 | if (format->type != video->queue.type) | |
761 | return -EINVAL; | |
762 | ||
763 | return __vsp1_video_try_format(video, &format->fmt.pix_mp, NULL); | |
764 | } | |
765 | ||
766 | static int | |
767 | vsp1_video_set_format(struct file *file, void *fh, struct v4l2_format *format) | |
768 | { | |
769 | struct v4l2_fh *vfh = file->private_data; | |
770 | struct vsp1_video *video = to_vsp1_video(vfh->vdev); | |
771 | const struct vsp1_format_info *info; | |
772 | int ret; | |
773 | ||
774 | if (format->type != video->queue.type) | |
775 | return -EINVAL; | |
776 | ||
777 | ret = __vsp1_video_try_format(video, &format->fmt.pix_mp, &info); | |
778 | if (ret < 0) | |
779 | return ret; | |
780 | ||
781 | mutex_lock(&video->lock); | |
782 | ||
783 | if (vb2_is_busy(&video->queue)) { | |
784 | ret = -EBUSY; | |
785 | goto done; | |
786 | } | |
787 | ||
86960eec LP |
788 | video->rwpf->format = format->fmt.pix_mp; |
789 | video->rwpf->fmtinfo = info; | |
26e0ca22 LP |
790 | |
791 | done: | |
792 | mutex_unlock(&video->lock); | |
793 | return ret; | |
794 | } | |
795 | ||
796 | static int | |
797 | vsp1_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) | |
798 | { | |
799 | struct v4l2_fh *vfh = file->private_data; | |
800 | struct vsp1_video *video = to_vsp1_video(vfh->vdev); | |
a0cdac56 | 801 | struct media_device *mdev = &video->vsp1->media_dev; |
26e0ca22 LP |
802 | struct vsp1_pipeline *pipe; |
803 | int ret; | |
804 | ||
26e0ca22 LP |
805 | if (video->queue.owner && video->queue.owner != file->private_data) |
806 | return -EBUSY; | |
807 | ||
a0cdac56 LP |
808 | /* Get a pipeline for the video node and start streaming on it. No link |
809 | * touching an entity in the pipeline can be activated or deactivated | |
810 | * once streaming is started. | |
26e0ca22 | 811 | */ |
a0cdac56 | 812 | mutex_lock(&mdev->graph_mutex); |
26e0ca22 | 813 | |
a0cdac56 LP |
814 | pipe = vsp1_video_pipeline_get(video); |
815 | if (IS_ERR(pipe)) { | |
816 | mutex_unlock(&mdev->graph_mutex); | |
817 | return PTR_ERR(pipe); | |
818 | } | |
819 | ||
820 | ret = __media_entity_pipeline_start(&video->video.entity, &pipe->pipe); | |
821 | if (ret < 0) { | |
822 | mutex_unlock(&mdev->graph_mutex); | |
823 | goto err_pipe; | |
824 | } | |
825 | ||
826 | mutex_unlock(&mdev->graph_mutex); | |
26e0ca22 LP |
827 | |
828 | /* Verify that the configured format matches the output of the connected | |
829 | * subdev. | |
830 | */ | |
831 | ret = vsp1_video_verify_format(video); | |
832 | if (ret < 0) | |
833 | goto err_stop; | |
834 | ||
26e0ca22 LP |
835 | /* Start the queue. */ |
836 | ret = vb2_streamon(&video->queue, type); | |
837 | if (ret < 0) | |
a0cdac56 | 838 | goto err_stop; |
26e0ca22 LP |
839 | |
840 | return 0; | |
841 | ||
26e0ca22 LP |
842 | err_stop: |
843 | media_entity_pipeline_stop(&video->video.entity); | |
a0cdac56 LP |
844 | err_pipe: |
845 | vsp1_video_pipeline_put(pipe); | |
26e0ca22 LP |
846 | return ret; |
847 | } | |
848 | ||
849 | static const struct v4l2_ioctl_ops vsp1_video_ioctl_ops = { | |
850 | .vidioc_querycap = vsp1_video_querycap, | |
851 | .vidioc_g_fmt_vid_cap_mplane = vsp1_video_get_format, | |
852 | .vidioc_s_fmt_vid_cap_mplane = vsp1_video_set_format, | |
853 | .vidioc_try_fmt_vid_cap_mplane = vsp1_video_try_format, | |
854 | .vidioc_g_fmt_vid_out_mplane = vsp1_video_get_format, | |
855 | .vidioc_s_fmt_vid_out_mplane = vsp1_video_set_format, | |
856 | .vidioc_try_fmt_vid_out_mplane = vsp1_video_try_format, | |
857 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
858 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
859 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
860 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
861 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
862 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
863 | .vidioc_streamon = vsp1_video_streamon, | |
864 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
865 | }; | |
866 | ||
867 | /* ----------------------------------------------------------------------------- | |
868 | * V4L2 File Operations | |
869 | */ | |
870 | ||
871 | static int vsp1_video_open(struct file *file) | |
872 | { | |
873 | struct vsp1_video *video = video_drvdata(file); | |
874 | struct v4l2_fh *vfh; | |
875 | int ret = 0; | |
876 | ||
877 | vfh = kzalloc(sizeof(*vfh), GFP_KERNEL); | |
878 | if (vfh == NULL) | |
879 | return -ENOMEM; | |
880 | ||
881 | v4l2_fh_init(vfh, &video->video); | |
882 | v4l2_fh_add(vfh); | |
883 | ||
884 | file->private_data = vfh; | |
885 | ||
4c16d6a0 LP |
886 | ret = vsp1_device_get(video->vsp1); |
887 | if (ret < 0) { | |
26e0ca22 LP |
888 | v4l2_fh_del(vfh); |
889 | kfree(vfh); | |
890 | } | |
891 | ||
892 | return ret; | |
893 | } | |
894 | ||
895 | static int vsp1_video_release(struct file *file) | |
896 | { | |
897 | struct vsp1_video *video = video_drvdata(file); | |
898 | struct v4l2_fh *vfh = file->private_data; | |
899 | ||
900 | mutex_lock(&video->lock); | |
901 | if (video->queue.owner == vfh) { | |
902 | vb2_queue_release(&video->queue); | |
903 | video->queue.owner = NULL; | |
904 | } | |
905 | mutex_unlock(&video->lock); | |
906 | ||
907 | vsp1_device_put(video->vsp1); | |
908 | ||
909 | v4l2_fh_release(file); | |
910 | ||
911 | file->private_data = NULL; | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
eb9163d3 | 916 | static const struct v4l2_file_operations vsp1_video_fops = { |
26e0ca22 LP |
917 | .owner = THIS_MODULE, |
918 | .unlocked_ioctl = video_ioctl2, | |
919 | .open = vsp1_video_open, | |
920 | .release = vsp1_video_release, | |
921 | .poll = vb2_fop_poll, | |
922 | .mmap = vb2_fop_mmap, | |
923 | }; | |
924 | ||
925 | /* ----------------------------------------------------------------------------- | |
926 | * Initialization and Cleanup | |
927 | */ | |
928 | ||
9d40637a LP |
929 | struct vsp1_video *vsp1_video_create(struct vsp1_device *vsp1, |
930 | struct vsp1_rwpf *rwpf) | |
26e0ca22 | 931 | { |
9d40637a | 932 | struct vsp1_video *video; |
26e0ca22 LP |
933 | const char *direction; |
934 | int ret; | |
935 | ||
9d40637a LP |
936 | video = devm_kzalloc(vsp1->dev, sizeof(*video), GFP_KERNEL); |
937 | if (!video) | |
938 | return ERR_PTR(-ENOMEM); | |
26e0ca22 | 939 | |
faf2644d | 940 | rwpf->video = video; |
9d40637a LP |
941 | |
942 | video->vsp1 = vsp1; | |
943 | video->rwpf = rwpf; | |
944 | ||
945 | if (rwpf->entity.type == VSP1_ENTITY_RPF) { | |
26e0ca22 | 946 | direction = "input"; |
9d40637a | 947 | video->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; |
26e0ca22 LP |
948 | video->pad.flags = MEDIA_PAD_FL_SOURCE; |
949 | video->video.vfl_dir = VFL_DIR_TX; | |
9d40637a LP |
950 | } else { |
951 | direction = "output"; | |
952 | video->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
953 | video->pad.flags = MEDIA_PAD_FL_SINK; | |
954 | video->video.vfl_dir = VFL_DIR_RX; | |
26e0ca22 LP |
955 | } |
956 | ||
26e0ca22 LP |
957 | mutex_init(&video->lock); |
958 | spin_lock_init(&video->irqlock); | |
959 | INIT_LIST_HEAD(&video->irqqueue); | |
960 | ||
26e0ca22 | 961 | /* Initialize the media entity... */ |
ab22e77c | 962 | ret = media_entity_pads_init(&video->video.entity, 1, &video->pad); |
26e0ca22 | 963 | if (ret < 0) |
9d40637a | 964 | return ERR_PTR(ret); |
26e0ca22 LP |
965 | |
966 | /* ... and the format ... */ | |
b911605d | 967 | rwpf->format.pixelformat = VSP1_VIDEO_DEF_FORMAT; |
86960eec LP |
968 | rwpf->format.width = VSP1_VIDEO_DEF_WIDTH; |
969 | rwpf->format.height = VSP1_VIDEO_DEF_HEIGHT; | |
b911605d | 970 | __vsp1_video_try_format(video, &rwpf->format, &rwpf->fmtinfo); |
26e0ca22 LP |
971 | |
972 | /* ... and the video node... */ | |
973 | video->video.v4l2_dev = &video->vsp1->v4l2_dev; | |
974 | video->video.fops = &vsp1_video_fops; | |
975 | snprintf(video->video.name, sizeof(video->video.name), "%s %s", | |
8b4a0563 | 976 | rwpf->entity.subdev.name, direction); |
26e0ca22 LP |
977 | video->video.vfl_type = VFL_TYPE_GRABBER; |
978 | video->video.release = video_device_release_empty; | |
979 | video->video.ioctl_ops = &vsp1_video_ioctl_ops; | |
980 | ||
981 | video_set_drvdata(&video->video, video); | |
982 | ||
983 | /* ... and the buffers queue... */ | |
984 | video->alloc_ctx = vb2_dma_contig_init_ctx(video->vsp1->dev); | |
b317828b WY |
985 | if (IS_ERR(video->alloc_ctx)) { |
986 | ret = PTR_ERR(video->alloc_ctx); | |
26e0ca22 | 987 | goto error; |
b317828b | 988 | } |
26e0ca22 LP |
989 | |
990 | video->queue.type = video->type; | |
991 | video->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; | |
992 | video->queue.lock = &video->lock; | |
993 | video->queue.drv_priv = video; | |
f7ebf3ca | 994 | video->queue.buf_struct_size = sizeof(struct vsp1_vb2_buffer); |
26e0ca22 LP |
995 | video->queue.ops = &vsp1_video_queue_qops; |
996 | video->queue.mem_ops = &vb2_dma_contig_memops; | |
ade48681 | 997 | video->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
26e0ca22 LP |
998 | ret = vb2_queue_init(&video->queue); |
999 | if (ret < 0) { | |
1000 | dev_err(video->vsp1->dev, "failed to initialize vb2 queue\n"); | |
1001 | goto error; | |
1002 | } | |
1003 | ||
1004 | /* ... and register the video device. */ | |
1005 | video->video.queue = &video->queue; | |
1006 | ret = video_register_device(&video->video, VFL_TYPE_GRABBER, -1); | |
1007 | if (ret < 0) { | |
1008 | dev_err(video->vsp1->dev, "failed to register video device\n"); | |
1009 | goto error; | |
1010 | } | |
1011 | ||
9d40637a | 1012 | return video; |
26e0ca22 LP |
1013 | |
1014 | error: | |
1015 | vb2_dma_contig_cleanup_ctx(video->alloc_ctx); | |
1016 | vsp1_video_cleanup(video); | |
9d40637a | 1017 | return ERR_PTR(ret); |
26e0ca22 LP |
1018 | } |
1019 | ||
1020 | void vsp1_video_cleanup(struct vsp1_video *video) | |
1021 | { | |
1022 | if (video_is_registered(&video->video)) | |
1023 | video_unregister_device(&video->video); | |
1024 | ||
1025 | vb2_dma_contig_cleanup_ctx(video->alloc_ctx); | |
1026 | media_entity_cleanup(&video->video.entity); | |
1027 | } |