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9#include <linux/module.h>
10#include <linux/kernel.h>
11#include <linux/types.h>
12#include <linux/errno.h>
13#include <linux/bug.h>
14#include <linux/interrupt.h>
15#include <linux/device.h>
16#include <linux/platform_device.h>
17#include <linux/pm_runtime.h>
18#include <linux/list.h>
19#include <linux/io.h>
20#include <linux/slab.h>
21#include <linux/clk.h>
22#include <media/v4l2-ioctl.h>
23#include <media/videobuf2-v4l2.h>
24#include <media/videobuf2-dma-contig.h>
25
26#include "common.h"
27#include "fimc-core.h"
28#include "fimc-reg.h"
29#include "media-dev.h"
30
31static unsigned int get_m2m_fmt_flags(unsigned int stream_type)
32{
33 if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
34 return FMT_FLAGS_M2M_IN;
35 else
36 return FMT_FLAGS_M2M_OUT;
37}
38
39void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
40{
41 struct vb2_v4l2_buffer *src_vb, *dst_vb;
42
43 if (!ctx || !ctx->fh.m2m_ctx)
44 return;
45
46 src_vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
47 dst_vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
48
49 if (src_vb)
50 v4l2_m2m_buf_done(src_vb, vb_state);
51 if (dst_vb)
52 v4l2_m2m_buf_done(dst_vb, vb_state);
53 if (src_vb && dst_vb)
54 v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
55 ctx->fh.m2m_ctx);
56}
57
58
59static void fimc_m2m_shutdown(struct fimc_ctx *ctx)
60{
61 struct fimc_dev *fimc = ctx->fimc_dev;
62
63 if (!fimc_m2m_pending(fimc))
64 return;
65
66 fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
67
68 wait_event_timeout(fimc->irq_queue,
69 !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
70 FIMC_SHUTDOWN_TIMEOUT);
71}
72
73static int start_streaming(struct vb2_queue *q, unsigned int count)
74{
75 struct fimc_ctx *ctx = q->drv_priv;
76 int ret;
77
78 ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
79 return ret > 0 ? 0 : ret;
80}
81
82static void stop_streaming(struct vb2_queue *q)
83{
84 struct fimc_ctx *ctx = q->drv_priv;
85
86
87 fimc_m2m_shutdown(ctx);
88 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
89 pm_runtime_put(&ctx->fimc_dev->pdev->dev);
90}
91
92static void fimc_device_run(void *priv)
93{
94 struct vb2_v4l2_buffer *src_vb, *dst_vb;
95 struct fimc_ctx *ctx = priv;
96 struct fimc_frame *sf, *df;
97 struct fimc_dev *fimc;
98 unsigned long flags;
99 int ret;
100
101 if (WARN(!ctx, "Null context\n"))
102 return;
103
104 fimc = ctx->fimc_dev;
105 spin_lock_irqsave(&fimc->slock, flags);
106
107 set_bit(ST_M2M_PEND, &fimc->state);
108 sf = &ctx->s_frame;
109 df = &ctx->d_frame;
110
111 if (ctx->state & FIMC_PARAMS) {
112
113 fimc_prepare_dma_offset(ctx, sf);
114 fimc_prepare_dma_offset(ctx, df);
115 }
116
117 src_vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
118 ret = fimc_prepare_addr(ctx, &src_vb->vb2_buf, sf, &sf->paddr);
119 if (ret)
120 goto dma_unlock;
121
122 dst_vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
123 ret = fimc_prepare_addr(ctx, &dst_vb->vb2_buf, df, &df->paddr);
124 if (ret)
125 goto dma_unlock;
126
127 dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp;
128 dst_vb->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
129 dst_vb->flags |=
130 src_vb->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
131
132
133 if (fimc->m2m.ctx != ctx) {
134 ctx->state |= FIMC_PARAMS;
135 fimc->m2m.ctx = ctx;
136 }
137
138 if (ctx->state & FIMC_PARAMS) {
139 fimc_set_yuv_order(ctx);
140 fimc_hw_set_input_path(ctx);
141 fimc_hw_set_in_dma(ctx);
142 ret = fimc_set_scaler_info(ctx);
143 if (ret)
144 goto dma_unlock;
145 fimc_hw_set_prescaler(ctx);
146 fimc_hw_set_mainscaler(ctx);
147 fimc_hw_set_target_format(ctx);
148 fimc_hw_set_rotation(ctx);
149 fimc_hw_set_effect(ctx);
150 fimc_hw_set_out_dma(ctx);
151 if (fimc->drv_data->alpha_color)
152 fimc_hw_set_rgb_alpha(ctx);
153 fimc_hw_set_output_path(ctx);
154 }
155 fimc_hw_set_input_addr(fimc, &sf->paddr);
156 fimc_hw_set_output_addr(fimc, &df->paddr, -1);
157
158 fimc_activate_capture(ctx);
159 ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP);
160 fimc_hw_activate_input_dma(fimc, true);
161
162dma_unlock:
163 spin_unlock_irqrestore(&fimc->slock, flags);
164}
165
166static void fimc_job_abort(void *priv)
167{
168 fimc_m2m_shutdown(priv);
169}
170
171static int fimc_queue_setup(struct vb2_queue *vq,
172 unsigned int *num_buffers, unsigned int *num_planes,
173 unsigned int sizes[], struct device *alloc_devs[])
174{
175 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
176 struct fimc_frame *f;
177 int i;
178
179 f = ctx_get_frame(ctx, vq->type);
180 if (IS_ERR(f))
181 return PTR_ERR(f);
182
183
184
185
186 if (!f->fmt)
187 return -EINVAL;
188
189 *num_planes = f->fmt->memplanes;
190 for (i = 0; i < f->fmt->memplanes; i++)
191 sizes[i] = f->payload[i];
192 return 0;
193}
194
195static int fimc_buf_prepare(struct vb2_buffer *vb)
196{
197 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
198 struct fimc_frame *frame;
199 int i;
200
201 frame = ctx_get_frame(ctx, vb->vb2_queue->type);
202 if (IS_ERR(frame))
203 return PTR_ERR(frame);
204
205 for (i = 0; i < frame->fmt->memplanes; i++)
206 vb2_set_plane_payload(vb, i, frame->payload[i]);
207
208 return 0;
209}
210
211static void fimc_buf_queue(struct vb2_buffer *vb)
212{
213 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
214 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
215 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
216}
217
218static const struct vb2_ops fimc_qops = {
219 .queue_setup = fimc_queue_setup,
220 .buf_prepare = fimc_buf_prepare,
221 .buf_queue = fimc_buf_queue,
222 .wait_prepare = vb2_ops_wait_prepare,
223 .wait_finish = vb2_ops_wait_finish,
224 .stop_streaming = stop_streaming,
225 .start_streaming = start_streaming,
226};
227
228
229
230
231static int fimc_m2m_querycap(struct file *file, void *fh,
232 struct v4l2_capability *cap)
233{
234 struct fimc_dev *fimc = video_drvdata(file);
235
236 __fimc_vidioc_querycap(&fimc->pdev->dev, cap);
237 return 0;
238}
239
240static int fimc_m2m_enum_fmt(struct file *file, void *priv,
241 struct v4l2_fmtdesc *f)
242{
243 struct fimc_fmt *fmt;
244
245 fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
246 f->index);
247 if (!fmt)
248 return -EINVAL;
249
250 strscpy(f->description, fmt->name, sizeof(f->description));
251 f->pixelformat = fmt->fourcc;
252 return 0;
253}
254
255static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
256 struct v4l2_format *f)
257{
258 struct fimc_ctx *ctx = fh_to_ctx(fh);
259 struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
260
261 if (IS_ERR(frame))
262 return PTR_ERR(frame);
263
264 __fimc_get_format(frame, f);
265 return 0;
266}
267
268static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
269{
270 struct fimc_dev *fimc = ctx->fimc_dev;
271 const struct fimc_variant *variant = fimc->variant;
272 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
273 struct fimc_fmt *fmt;
274 u32 max_w, mod_x, mod_y;
275
276 if (!IS_M2M(f->type))
277 return -EINVAL;
278
279 fmt = fimc_find_format(&pix->pixelformat, NULL,
280 get_m2m_fmt_flags(f->type), 0);
281 if (WARN(fmt == NULL, "Pixel format lookup failed"))
282 return -EINVAL;
283
284 if (pix->field == V4L2_FIELD_ANY)
285 pix->field = V4L2_FIELD_NONE;
286 else if (pix->field != V4L2_FIELD_NONE)
287 return -EINVAL;
288
289 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
290 max_w = variant->pix_limit->scaler_dis_w;
291 mod_x = ffs(variant->min_inp_pixsize) - 1;
292 } else {
293 max_w = variant->pix_limit->out_rot_dis_w;
294 mod_x = ffs(variant->min_out_pixsize) - 1;
295 }
296
297 if (tiled_fmt(fmt)) {
298 mod_x = 6;
299 mod_y = 5;
300 } else {
301 if (variant->min_vsize_align == 1)
302 mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
303 else
304 mod_y = ffs(variant->min_vsize_align) - 1;
305 }
306
307 v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
308 &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
309
310 fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
311 return 0;
312}
313
314static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
315 struct v4l2_format *f)
316{
317 struct fimc_ctx *ctx = fh_to_ctx(fh);
318 return fimc_try_fmt_mplane(ctx, f);
319}
320
321static void __set_frame_format(struct fimc_frame *frame, struct fimc_fmt *fmt,
322 struct v4l2_pix_format_mplane *pixm)
323{
324 int i;
325
326 for (i = 0; i < fmt->memplanes; i++) {
327 frame->bytesperline[i] = pixm->plane_fmt[i].bytesperline;
328 frame->payload[i] = pixm->plane_fmt[i].sizeimage;
329 }
330
331 frame->f_width = pixm->width;
332 frame->f_height = pixm->height;
333 frame->o_width = pixm->width;
334 frame->o_height = pixm->height;
335 frame->width = pixm->width;
336 frame->height = pixm->height;
337 frame->offs_h = 0;
338 frame->offs_v = 0;
339 frame->fmt = fmt;
340}
341
342static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
343 struct v4l2_format *f)
344{
345 struct fimc_ctx *ctx = fh_to_ctx(fh);
346 struct fimc_dev *fimc = ctx->fimc_dev;
347 struct fimc_fmt *fmt;
348 struct vb2_queue *vq;
349 struct fimc_frame *frame;
350 int ret;
351
352 ret = fimc_try_fmt_mplane(ctx, f);
353 if (ret)
354 return ret;
355
356 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
357
358 if (vb2_is_busy(vq)) {
359 v4l2_err(&fimc->m2m.vfd, "queue (%d) busy\n", f->type);
360 return -EBUSY;
361 }
362
363 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
364 frame = &ctx->s_frame;
365 else
366 frame = &ctx->d_frame;
367
368 fmt = fimc_find_format(&f->fmt.pix_mp.pixelformat, NULL,
369 get_m2m_fmt_flags(f->type), 0);
370 if (!fmt)
371 return -EINVAL;
372
373 __set_frame_format(frame, fmt, &f->fmt.pix_mp);
374
375
376 fimc_alpha_ctrl_update(ctx);
377
378 return 0;
379}
380
381static int fimc_m2m_g_selection(struct file *file, void *fh,
382 struct v4l2_selection *s)
383{
384 struct fimc_ctx *ctx = fh_to_ctx(fh);
385 struct fimc_frame *frame;
386
387 frame = ctx_get_frame(ctx, s->type);
388 if (IS_ERR(frame))
389 return PTR_ERR(frame);
390
391 switch (s->target) {
392 case V4L2_SEL_TGT_CROP:
393 case V4L2_SEL_TGT_CROP_DEFAULT:
394 case V4L2_SEL_TGT_CROP_BOUNDS:
395 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
396 return -EINVAL;
397 break;
398 case V4L2_SEL_TGT_COMPOSE:
399 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
400 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
401 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
402 return -EINVAL;
403 break;
404 default:
405 return -EINVAL;
406 }
407
408 switch (s->target) {
409 case V4L2_SEL_TGT_CROP:
410 case V4L2_SEL_TGT_COMPOSE:
411 s->r.left = frame->offs_h;
412 s->r.top = frame->offs_v;
413 s->r.width = frame->width;
414 s->r.height = frame->height;
415 break;
416 case V4L2_SEL_TGT_CROP_DEFAULT:
417 case V4L2_SEL_TGT_CROP_BOUNDS:
418 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
419 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
420 s->r.left = 0;
421 s->r.top = 0;
422 s->r.width = frame->o_width;
423 s->r.height = frame->o_height;
424 break;
425 default:
426 return -EINVAL;
427 }
428 return 0;
429}
430
431static int fimc_m2m_try_selection(struct fimc_ctx *ctx,
432 struct v4l2_selection *s)
433{
434 struct fimc_dev *fimc = ctx->fimc_dev;
435 struct fimc_frame *f;
436 u32 min_size, halign, depth = 0;
437 int i;
438
439 if (s->r.top < 0 || s->r.left < 0) {
440 v4l2_err(&fimc->m2m.vfd,
441 "doesn't support negative values for top & left\n");
442 return -EINVAL;
443 }
444 if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
445 f = &ctx->d_frame;
446 if (s->target != V4L2_SEL_TGT_COMPOSE)
447 return -EINVAL;
448 } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
449 f = &ctx->s_frame;
450 if (s->target != V4L2_SEL_TGT_CROP)
451 return -EINVAL;
452 } else {
453 return -EINVAL;
454 }
455
456 min_size = (f == &ctx->s_frame) ?
457 fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
458
459
460 if (fimc->variant->min_vsize_align == 1)
461 halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
462 else
463 halign = ffs(fimc->variant->min_vsize_align) - 1;
464
465 for (i = 0; i < f->fmt->memplanes; i++)
466 depth += f->fmt->depth[i];
467
468 v4l_bound_align_image(&s->r.width, min_size, f->o_width,
469 ffs(min_size) - 1,
470 &s->r.height, min_size, f->o_height,
471 halign, 64/(ALIGN(depth, 8)));
472
473
474 if (s->r.left + s->r.width > f->o_width)
475 s->r.left = f->o_width - s->r.width;
476 if (s->r.top + s->r.height > f->o_height)
477 s->r.top = f->o_height - s->r.height;
478
479 s->r.left = round_down(s->r.left, min_size);
480 s->r.top = round_down(s->r.top, fimc->variant->hor_offs_align);
481
482 dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
483 s->r.left, s->r.top, s->r.width, s->r.height,
484 f->f_width, f->f_height);
485
486 return 0;
487}
488
489static int fimc_m2m_s_selection(struct file *file, void *fh,
490 struct v4l2_selection *s)
491{
492 struct fimc_ctx *ctx = fh_to_ctx(fh);
493 struct fimc_dev *fimc = ctx->fimc_dev;
494 struct fimc_frame *f;
495 int ret;
496
497 ret = fimc_m2m_try_selection(ctx, s);
498 if (ret)
499 return ret;
500
501 f = (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
502 &ctx->s_frame : &ctx->d_frame;
503
504
505 if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
506 ret = fimc_check_scaler_ratio(ctx, s->r.width,
507 s->r.height, ctx->d_frame.width,
508 ctx->d_frame.height, ctx->rotation);
509 } else {
510 ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
511 ctx->s_frame.height, s->r.width,
512 s->r.height, ctx->rotation);
513 }
514 if (ret) {
515 v4l2_err(&fimc->m2m.vfd, "Out of scaler range\n");
516 return -EINVAL;
517 }
518
519 f->offs_h = s->r.left;
520 f->offs_v = s->r.top;
521 f->width = s->r.width;
522 f->height = s->r.height;
523
524 fimc_ctx_state_set(FIMC_PARAMS, ctx);
525
526 return 0;
527}
528
529static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
530 .vidioc_querycap = fimc_m2m_querycap,
531 .vidioc_enum_fmt_vid_cap = fimc_m2m_enum_fmt,
532 .vidioc_enum_fmt_vid_out = fimc_m2m_enum_fmt,
533 .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
534 .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
535 .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
536 .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
537 .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
538 .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
539 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
540 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
541 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
542 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
543 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
544 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
545 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
546 .vidioc_g_selection = fimc_m2m_g_selection,
547 .vidioc_s_selection = fimc_m2m_s_selection,
548
549};
550
551static int queue_init(void *priv, struct vb2_queue *src_vq,
552 struct vb2_queue *dst_vq)
553{
554 struct fimc_ctx *ctx = priv;
555 int ret;
556
557 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
558 src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
559 src_vq->drv_priv = ctx;
560 src_vq->ops = &fimc_qops;
561 src_vq->mem_ops = &vb2_dma_contig_memops;
562 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
563 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
564 src_vq->lock = &ctx->fimc_dev->lock;
565 src_vq->dev = &ctx->fimc_dev->pdev->dev;
566
567 ret = vb2_queue_init(src_vq);
568 if (ret)
569 return ret;
570
571 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
572 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
573 dst_vq->drv_priv = ctx;
574 dst_vq->ops = &fimc_qops;
575 dst_vq->mem_ops = &vb2_dma_contig_memops;
576 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
577 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
578 dst_vq->lock = &ctx->fimc_dev->lock;
579 dst_vq->dev = &ctx->fimc_dev->pdev->dev;
580
581 return vb2_queue_init(dst_vq);
582}
583
584static int fimc_m2m_set_default_format(struct fimc_ctx *ctx)
585{
586 struct v4l2_pix_format_mplane pixm = {
587 .pixelformat = V4L2_PIX_FMT_RGB32,
588 .width = 800,
589 .height = 600,
590 .plane_fmt[0] = {
591 .bytesperline = 800 * 4,
592 .sizeimage = 800 * 4 * 600,
593 },
594 };
595 struct fimc_fmt *fmt;
596
597 fmt = fimc_find_format(&pixm.pixelformat, NULL, FMT_FLAGS_M2M, 0);
598 if (!fmt)
599 return -EINVAL;
600
601 __set_frame_format(&ctx->s_frame, fmt, &pixm);
602 __set_frame_format(&ctx->d_frame, fmt, &pixm);
603
604 return 0;
605}
606
607static int fimc_m2m_open(struct file *file)
608{
609 struct fimc_dev *fimc = video_drvdata(file);
610 struct fimc_ctx *ctx;
611 int ret = -EBUSY;
612
613 pr_debug("pid: %d, state: %#lx\n", task_pid_nr(current), fimc->state);
614
615 if (mutex_lock_interruptible(&fimc->lock))
616 return -ERESTARTSYS;
617
618
619
620
621 if (test_bit(ST_CAPT_BUSY, &fimc->state))
622 goto unlock;
623
624 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
625 if (!ctx) {
626 ret = -ENOMEM;
627 goto unlock;
628 }
629 v4l2_fh_init(&ctx->fh, &fimc->m2m.vfd);
630 ctx->fimc_dev = fimc;
631
632
633 ctx->s_frame.fmt = fimc_get_format(0);
634 ctx->d_frame.fmt = fimc_get_format(0);
635
636 ret = fimc_ctrls_create(ctx);
637 if (ret)
638 goto error_fh;
639
640
641 ctx->fh.ctrl_handler = &ctx->ctrls.handler;
642 file->private_data = &ctx->fh;
643 v4l2_fh_add(&ctx->fh);
644
645
646 ctx->state = FIMC_CTX_M2M;
647 ctx->flags = 0;
648 ctx->in_path = FIMC_IO_DMA;
649 ctx->out_path = FIMC_IO_DMA;
650 ctx->scaler.enabled = 1;
651
652 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
653 if (IS_ERR(ctx->fh.m2m_ctx)) {
654 ret = PTR_ERR(ctx->fh.m2m_ctx);
655 goto error_c;
656 }
657
658 if (fimc->m2m.refcnt++ == 0)
659 set_bit(ST_M2M_RUN, &fimc->state);
660
661 ret = fimc_m2m_set_default_format(ctx);
662 if (ret < 0)
663 goto error_m2m_ctx;
664
665 mutex_unlock(&fimc->lock);
666 return 0;
667
668error_m2m_ctx:
669 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
670error_c:
671 fimc_ctrls_delete(ctx);
672 v4l2_fh_del(&ctx->fh);
673error_fh:
674 v4l2_fh_exit(&ctx->fh);
675 kfree(ctx);
676unlock:
677 mutex_unlock(&fimc->lock);
678 return ret;
679}
680
681static int fimc_m2m_release(struct file *file)
682{
683 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
684 struct fimc_dev *fimc = ctx->fimc_dev;
685
686 dbg("pid: %d, state: 0x%lx, refcnt= %d",
687 task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
688
689 mutex_lock(&fimc->lock);
690
691 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
692 fimc_ctrls_delete(ctx);
693 v4l2_fh_del(&ctx->fh);
694 v4l2_fh_exit(&ctx->fh);
695
696 if (--fimc->m2m.refcnt <= 0)
697 clear_bit(ST_M2M_RUN, &fimc->state);
698 kfree(ctx);
699
700 mutex_unlock(&fimc->lock);
701 return 0;
702}
703
704static const struct v4l2_file_operations fimc_m2m_fops = {
705 .owner = THIS_MODULE,
706 .open = fimc_m2m_open,
707 .release = fimc_m2m_release,
708 .poll = v4l2_m2m_fop_poll,
709 .unlocked_ioctl = video_ioctl2,
710 .mmap = v4l2_m2m_fop_mmap,
711};
712
713static const struct v4l2_m2m_ops m2m_ops = {
714 .device_run = fimc_device_run,
715 .job_abort = fimc_job_abort,
716};
717
718int fimc_register_m2m_device(struct fimc_dev *fimc,
719 struct v4l2_device *v4l2_dev)
720{
721 struct video_device *vfd = &fimc->m2m.vfd;
722 int ret;
723
724 fimc->v4l2_dev = v4l2_dev;
725
726 memset(vfd, 0, sizeof(*vfd));
727 vfd->fops = &fimc_m2m_fops;
728 vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
729 vfd->v4l2_dev = v4l2_dev;
730 vfd->minor = -1;
731 vfd->release = video_device_release_empty;
732 vfd->lock = &fimc->lock;
733 vfd->vfl_dir = VFL_DIR_M2M;
734 vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE;
735 set_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags);
736
737 snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.m2m", fimc->id);
738 video_set_drvdata(vfd, fimc);
739
740 fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
741 if (IS_ERR(fimc->m2m.m2m_dev)) {
742 v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
743 return PTR_ERR(fimc->m2m.m2m_dev);
744 }
745
746 ret = media_entity_pads_init(&vfd->entity, 0, NULL);
747 if (ret)
748 goto err_me;
749
750 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
751 if (ret)
752 goto err_vd;
753
754 v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
755 vfd->name, video_device_node_name(vfd));
756 return 0;
757
758err_vd:
759 media_entity_cleanup(&vfd->entity);
760err_me:
761 v4l2_m2m_release(fimc->m2m.m2m_dev);
762 return ret;
763}
764
765void fimc_unregister_m2m_device(struct fimc_dev *fimc)
766{
767 if (!fimc)
768 return;
769
770 if (fimc->m2m.m2m_dev)
771 v4l2_m2m_release(fimc->m2m.m2m_dev);
772
773 if (video_is_registered(&fimc->m2m.vfd)) {
774 video_unregister_device(&fimc->m2m.vfd);
775 media_entity_cleanup(&fimc->m2m.vfd.entity);
776 }
777}
778
