1
2
3
4
5
6
7
8#include <linux/module.h>
9#include <linux/delay.h>
10#include <linux/fs.h>
11#include <linux/sched.h>
12#include <linux/slab.h>
13#include <video/imx-ipu-v3.h>
14#include <video/imx-ipu-image-convert.h>
15
16#include <media/media-device.h>
17#include <media/v4l2-ctrls.h>
18#include <media/v4l2-event.h>
19#include <media/v4l2-mem2mem.h>
20#include <media/v4l2-device.h>
21#include <media/v4l2-ioctl.h>
22#include <media/videobuf2-dma-contig.h>
23
24#include "imx-media.h"
25
26#define fh_to_ctx(__fh) container_of(__fh, struct ipu_csc_scaler_ctx, fh)
27
28#define IMX_CSC_SCALER_NAME "imx-csc-scaler"
29
30enum {
31 V4L2_M2M_SRC = 0,
32 V4L2_M2M_DST = 1,
33};
34
35struct ipu_csc_scaler_priv {
36 struct imx_media_video_dev vdev;
37
38 struct v4l2_m2m_dev *m2m_dev;
39 struct device *dev;
40
41 struct imx_media_dev *md;
42
43 struct mutex mutex;
44};
45
46#define vdev_to_priv(v) container_of(v, struct ipu_csc_scaler_priv, vdev)
47
48
49struct ipu_csc_scaler_q_data {
50 struct v4l2_pix_format cur_fmt;
51 struct v4l2_rect rect;
52};
53
54struct ipu_csc_scaler_ctx {
55 struct ipu_csc_scaler_priv *priv;
56
57 struct v4l2_fh fh;
58 struct ipu_csc_scaler_q_data q_data[2];
59 struct ipu_image_convert_ctx *icc;
60
61 struct v4l2_ctrl_handler ctrl_hdlr;
62 int rotate;
63 bool hflip;
64 bool vflip;
65 enum ipu_rotate_mode rot_mode;
66 unsigned int sequence;
67};
68
69static struct ipu_csc_scaler_q_data *get_q_data(struct ipu_csc_scaler_ctx *ctx,
70 enum v4l2_buf_type type)
71{
72 if (V4L2_TYPE_IS_OUTPUT(type))
73 return &ctx->q_data[V4L2_M2M_SRC];
74 else
75 return &ctx->q_data[V4L2_M2M_DST];
76}
77
78
79
80
81
82static void job_abort(void *_ctx)
83{
84 struct ipu_csc_scaler_ctx *ctx = _ctx;
85
86 if (ctx->icc)
87 ipu_image_convert_abort(ctx->icc);
88}
89
90static void ipu_ic_pp_complete(struct ipu_image_convert_run *run, void *_ctx)
91{
92 struct ipu_csc_scaler_ctx *ctx = _ctx;
93 struct ipu_csc_scaler_priv *priv = ctx->priv;
94 struct vb2_v4l2_buffer *src_buf, *dst_buf;
95
96 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
97 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
98
99 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
100
101 src_buf->sequence = ctx->sequence++;
102 dst_buf->sequence = src_buf->sequence;
103
104 v4l2_m2m_buf_done(src_buf, run->status ? VB2_BUF_STATE_ERROR :
105 VB2_BUF_STATE_DONE);
106 v4l2_m2m_buf_done(dst_buf, run->status ? VB2_BUF_STATE_ERROR :
107 VB2_BUF_STATE_DONE);
108
109 v4l2_m2m_job_finish(priv->m2m_dev, ctx->fh.m2m_ctx);
110 kfree(run);
111}
112
113static void device_run(void *_ctx)
114{
115 struct ipu_csc_scaler_ctx *ctx = _ctx;
116 struct ipu_csc_scaler_priv *priv = ctx->priv;
117 struct vb2_v4l2_buffer *src_buf, *dst_buf;
118 struct ipu_image_convert_run *run;
119 int ret;
120
121 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
122 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
123
124 run = kzalloc(sizeof(*run), GFP_KERNEL);
125 if (!run)
126 goto err;
127
128 run->ctx = ctx->icc;
129 run->in_phys = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
130 run->out_phys = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
131
132 ret = ipu_image_convert_queue(run);
133 if (ret < 0) {
134 v4l2_err(ctx->priv->vdev.vfd->v4l2_dev,
135 "%s: failed to queue: %d\n", __func__, ret);
136 goto err;
137 }
138
139 return;
140
141err:
142 v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
143 v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
144 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
145 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
146 v4l2_m2m_job_finish(priv->m2m_dev, ctx->fh.m2m_ctx);
147}
148
149
150
151
152static int ipu_csc_scaler_querycap(struct file *file, void *priv,
153 struct v4l2_capability *cap)
154{
155 strscpy(cap->driver, IMX_CSC_SCALER_NAME, sizeof(cap->driver));
156 strscpy(cap->card, IMX_CSC_SCALER_NAME, sizeof(cap->card));
157 snprintf(cap->bus_info, sizeof(cap->bus_info),
158 "platform:%s", IMX_CSC_SCALER_NAME);
159
160 return 0;
161}
162
163static int ipu_csc_scaler_enum_fmt(struct file *file, void *fh,
164 struct v4l2_fmtdesc *f)
165{
166 u32 fourcc;
167 int ret;
168
169 ret = imx_media_enum_pixel_formats(&fourcc, f->index,
170 PIXFMT_SEL_YUV_RGB, 0);
171 if (ret)
172 return ret;
173
174 f->pixelformat = fourcc;
175
176 return 0;
177}
178
179static int ipu_csc_scaler_g_fmt(struct file *file, void *priv,
180 struct v4l2_format *f)
181{
182 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
183 struct ipu_csc_scaler_q_data *q_data;
184
185 q_data = get_q_data(ctx, f->type);
186
187 f->fmt.pix = q_data->cur_fmt;
188
189 return 0;
190}
191
192static int ipu_csc_scaler_try_fmt(struct file *file, void *priv,
193 struct v4l2_format *f)
194{
195 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
196 struct ipu_csc_scaler_q_data *q_data = get_q_data(ctx, f->type);
197 struct ipu_image test_in, test_out;
198 enum v4l2_field field;
199
200 field = f->fmt.pix.field;
201 if (field == V4L2_FIELD_ANY)
202 field = V4L2_FIELD_NONE;
203 else if (field != V4L2_FIELD_NONE)
204 return -EINVAL;
205
206 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
207 struct ipu_csc_scaler_q_data *q_data_in =
208 get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
209
210 test_out.pix = f->fmt.pix;
211 test_in.pix = q_data_in->cur_fmt;
212 } else {
213 struct ipu_csc_scaler_q_data *q_data_out =
214 get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
215
216 test_in.pix = f->fmt.pix;
217 test_out.pix = q_data_out->cur_fmt;
218 }
219
220 ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
221
222 f->fmt.pix = (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
223 test_out.pix : test_in.pix;
224
225 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
226 f->fmt.pix.colorspace = q_data->cur_fmt.colorspace;
227 f->fmt.pix.ycbcr_enc = q_data->cur_fmt.ycbcr_enc;
228 f->fmt.pix.xfer_func = q_data->cur_fmt.xfer_func;
229 f->fmt.pix.quantization = q_data->cur_fmt.quantization;
230 } else if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT) {
231 f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
232 f->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
233 f->fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT;
234 f->fmt.pix.quantization = V4L2_QUANTIZATION_DEFAULT;
235 }
236
237 return 0;
238}
239
240static int ipu_csc_scaler_s_fmt(struct file *file, void *priv,
241 struct v4l2_format *f)
242{
243 struct ipu_csc_scaler_q_data *q_data;
244 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
245 struct vb2_queue *vq;
246 int ret;
247
248 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
249 if (vb2_is_busy(vq)) {
250 v4l2_err(ctx->priv->vdev.vfd->v4l2_dev, "%s: queue busy\n",
251 __func__);
252 return -EBUSY;
253 }
254
255 q_data = get_q_data(ctx, f->type);
256
257 ret = ipu_csc_scaler_try_fmt(file, priv, f);
258 if (ret < 0)
259 return ret;
260
261 q_data->cur_fmt.width = f->fmt.pix.width;
262 q_data->cur_fmt.height = f->fmt.pix.height;
263 q_data->cur_fmt.pixelformat = f->fmt.pix.pixelformat;
264 q_data->cur_fmt.field = f->fmt.pix.field;
265 q_data->cur_fmt.bytesperline = f->fmt.pix.bytesperline;
266 q_data->cur_fmt.sizeimage = f->fmt.pix.sizeimage;
267
268
269 q_data->rect.left = 0;
270 q_data->rect.top = 0;
271 q_data->rect.width = q_data->cur_fmt.width;
272 q_data->rect.height = q_data->cur_fmt.height;
273
274 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
275
276 q_data->cur_fmt.colorspace = f->fmt.pix.colorspace;
277 q_data->cur_fmt.ycbcr_enc = f->fmt.pix.ycbcr_enc;
278 q_data->cur_fmt.xfer_func = f->fmt.pix.xfer_func;
279 q_data->cur_fmt.quantization = f->fmt.pix.quantization;
280
281 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
282 q_data->cur_fmt.colorspace = f->fmt.pix.colorspace;
283 q_data->cur_fmt.ycbcr_enc = f->fmt.pix.ycbcr_enc;
284 q_data->cur_fmt.xfer_func = f->fmt.pix.xfer_func;
285 q_data->cur_fmt.quantization = f->fmt.pix.quantization;
286 }
287
288
289
290
291
292
293 return 0;
294}
295
296static int ipu_csc_scaler_g_selection(struct file *file, void *priv,
297 struct v4l2_selection *s)
298{
299 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
300 struct ipu_csc_scaler_q_data *q_data;
301
302 switch (s->target) {
303 case V4L2_SEL_TGT_CROP:
304 case V4L2_SEL_TGT_CROP_DEFAULT:
305 case V4L2_SEL_TGT_CROP_BOUNDS:
306 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
307 return -EINVAL;
308 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
309 break;
310 case V4L2_SEL_TGT_COMPOSE:
311 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
312 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
313 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
314 return -EINVAL;
315 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
316 break;
317 default:
318 return -EINVAL;
319 }
320
321 if (s->target == V4L2_SEL_TGT_CROP ||
322 s->target == V4L2_SEL_TGT_COMPOSE) {
323 s->r = q_data->rect;
324 } else {
325 s->r.left = 0;
326 s->r.top = 0;
327 s->r.width = q_data->cur_fmt.width;
328 s->r.height = q_data->cur_fmt.height;
329 }
330
331 return 0;
332}
333
334static int ipu_csc_scaler_s_selection(struct file *file, void *priv,
335 struct v4l2_selection *s)
336{
337 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
338 struct ipu_csc_scaler_q_data *q_data;
339
340 switch (s->target) {
341 case V4L2_SEL_TGT_CROP:
342 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
343 return -EINVAL;
344 break;
345 case V4L2_SEL_TGT_COMPOSE:
346 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
347 return -EINVAL;
348 break;
349 default:
350 return -EINVAL;
351 }
352
353 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
354 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
355 return -EINVAL;
356
357 q_data = get_q_data(ctx, s->type);
358
359
360
361
362
363 if (s->flags & V4L2_SEL_FLAG_GE)
364 s->r.width = round_up(s->r.width, 8);
365 if (s->flags & V4L2_SEL_FLAG_LE)
366 s->r.width = round_down(s->r.width, 8);
367 s->r.width = clamp_t(unsigned int, s->r.width, 8,
368 round_down(q_data->cur_fmt.width, 8));
369 s->r.height = clamp_t(unsigned int, s->r.height, 1,
370 q_data->cur_fmt.height);
371 s->r.left = clamp_t(unsigned int, s->r.left, 0,
372 q_data->cur_fmt.width - s->r.width);
373 s->r.top = clamp_t(unsigned int, s->r.top, 0,
374 q_data->cur_fmt.height - s->r.height);
375
376
377 q_data->rect = s->r;
378
379 return 0;
380}
381
382static const struct v4l2_ioctl_ops ipu_csc_scaler_ioctl_ops = {
383 .vidioc_querycap = ipu_csc_scaler_querycap,
384
385 .vidioc_enum_fmt_vid_cap = ipu_csc_scaler_enum_fmt,
386 .vidioc_g_fmt_vid_cap = ipu_csc_scaler_g_fmt,
387 .vidioc_try_fmt_vid_cap = ipu_csc_scaler_try_fmt,
388 .vidioc_s_fmt_vid_cap = ipu_csc_scaler_s_fmt,
389
390 .vidioc_enum_fmt_vid_out = ipu_csc_scaler_enum_fmt,
391 .vidioc_g_fmt_vid_out = ipu_csc_scaler_g_fmt,
392 .vidioc_try_fmt_vid_out = ipu_csc_scaler_try_fmt,
393 .vidioc_s_fmt_vid_out = ipu_csc_scaler_s_fmt,
394
395 .vidioc_g_selection = ipu_csc_scaler_g_selection,
396 .vidioc_s_selection = ipu_csc_scaler_s_selection,
397
398 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
399 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
400
401 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
402 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
403 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
404 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
405 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
406
407 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
408 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
409
410 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
411 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
412};
413
414
415
416
417
418static int ipu_csc_scaler_queue_setup(struct vb2_queue *vq,
419 unsigned int *nbuffers,
420 unsigned int *nplanes,
421 unsigned int sizes[],
422 struct device *alloc_devs[])
423{
424 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vq);
425 struct ipu_csc_scaler_q_data *q_data;
426 unsigned int size, count = *nbuffers;
427
428 q_data = get_q_data(ctx, vq->type);
429
430 size = q_data->cur_fmt.sizeimage;
431
432 *nbuffers = count;
433
434 if (*nplanes)
435 return sizes[0] < size ? -EINVAL : 0;
436
437 *nplanes = 1;
438 sizes[0] = size;
439
440 dev_dbg(ctx->priv->dev, "get %d buffer(s) of size %d each.\n",
441 count, size);
442
443 return 0;
444}
445
446static int ipu_csc_scaler_buf_prepare(struct vb2_buffer *vb)
447{
448 struct vb2_queue *vq = vb->vb2_queue;
449 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
450 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vq);
451 struct ipu_csc_scaler_q_data *q_data;
452 unsigned long size;
453
454 dev_dbg(ctx->priv->dev, "type: %d\n", vq->type);
455
456 if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
457 if (vbuf->field == V4L2_FIELD_ANY)
458 vbuf->field = V4L2_FIELD_NONE;
459 if (vbuf->field != V4L2_FIELD_NONE) {
460 dev_dbg(ctx->priv->dev, "%s: field isn't supported\n",
461 __func__);
462 return -EINVAL;
463 }
464 }
465
466 q_data = get_q_data(ctx, vq->type);
467 size = q_data->cur_fmt.sizeimage;
468
469 if (vb2_plane_size(vb, 0) < size) {
470 dev_dbg(ctx->priv->dev,
471 "%s: data will not fit into plane (%lu < %lu)\n",
472 __func__, vb2_plane_size(vb, 0), size);
473 return -EINVAL;
474 }
475
476 vb2_set_plane_payload(vb, 0, size);
477
478 return 0;
479}
480
481static void ipu_csc_scaler_buf_queue(struct vb2_buffer *vb)
482{
483 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
484
485 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
486}
487
488static void ipu_image_from_q_data(struct ipu_image *im,
489 struct ipu_csc_scaler_q_data *q_data)
490{
491 struct v4l2_pix_format *fmt = &q_data->cur_fmt;
492
493 im->pix = *fmt;
494 if (fmt->ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
495 im->pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
496 if (fmt->quantization == V4L2_QUANTIZATION_DEFAULT)
497 im->pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
498 im->rect = q_data->rect;
499}
500
501static int ipu_csc_scaler_start_streaming(struct vb2_queue *q,
502 unsigned int count)
503{
504 const enum ipu_ic_task ic_task = IC_TASK_POST_PROCESSOR;
505 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(q);
506 struct ipu_csc_scaler_priv *priv = ctx->priv;
507 struct ipu_soc *ipu = priv->md->ipu[0];
508 struct ipu_csc_scaler_q_data *q_data;
509 struct vb2_queue *other_q;
510 struct ipu_image in, out;
511
512 other_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
513 (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
514 V4L2_BUF_TYPE_VIDEO_OUTPUT :
515 V4L2_BUF_TYPE_VIDEO_CAPTURE);
516 if (!vb2_is_streaming(other_q))
517 return 0;
518
519 if (ctx->icc) {
520 v4l2_warn(ctx->priv->vdev.vfd->v4l2_dev, "removing old ICC\n");
521 ipu_image_convert_unprepare(ctx->icc);
522 }
523
524 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
525 ipu_image_from_q_data(&in, q_data);
526
527 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
528 ipu_image_from_q_data(&out, q_data);
529
530 ctx->icc = ipu_image_convert_prepare(ipu, ic_task, &in, &out,
531 ctx->rot_mode,
532 ipu_ic_pp_complete, ctx);
533 if (IS_ERR(ctx->icc)) {
534 struct vb2_v4l2_buffer *buf;
535 int ret = PTR_ERR(ctx->icc);
536
537 ctx->icc = NULL;
538 v4l2_err(ctx->priv->vdev.vfd->v4l2_dev, "%s: error %d\n",
539 __func__, ret);
540 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
541 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
542 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
543 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
544 return ret;
545 }
546
547 return 0;
548}
549
550static void ipu_csc_scaler_stop_streaming(struct vb2_queue *q)
551{
552 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(q);
553 struct vb2_v4l2_buffer *buf;
554
555 if (ctx->icc) {
556 ipu_image_convert_unprepare(ctx->icc);
557 ctx->icc = NULL;
558 }
559
560 ctx->sequence = 0;
561
562 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
563 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
564 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
565 } else {
566 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
567 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
568 }
569}
570
571static const struct vb2_ops ipu_csc_scaler_qops = {
572 .queue_setup = ipu_csc_scaler_queue_setup,
573 .buf_prepare = ipu_csc_scaler_buf_prepare,
574 .buf_queue = ipu_csc_scaler_buf_queue,
575 .wait_prepare = vb2_ops_wait_prepare,
576 .wait_finish = vb2_ops_wait_finish,
577 .start_streaming = ipu_csc_scaler_start_streaming,
578 .stop_streaming = ipu_csc_scaler_stop_streaming,
579};
580
581static int ipu_csc_scaler_queue_init(void *priv, struct vb2_queue *src_vq,
582 struct vb2_queue *dst_vq)
583{
584 struct ipu_csc_scaler_ctx *ctx = priv;
585 int ret;
586
587 memset(src_vq, 0, sizeof(*src_vq));
588 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
589 src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
590 src_vq->drv_priv = ctx;
591 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
592 src_vq->ops = &ipu_csc_scaler_qops;
593 src_vq->mem_ops = &vb2_dma_contig_memops;
594 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
595 src_vq->lock = &ctx->priv->mutex;
596 src_vq->dev = ctx->priv->dev;
597
598 ret = vb2_queue_init(src_vq);
599 if (ret)
600 return ret;
601
602 memset(dst_vq, 0, sizeof(*dst_vq));
603 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
604 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
605 dst_vq->drv_priv = ctx;
606 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
607 dst_vq->ops = &ipu_csc_scaler_qops;
608 dst_vq->mem_ops = &vb2_dma_contig_memops;
609 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
610 dst_vq->lock = &ctx->priv->mutex;
611 dst_vq->dev = ctx->priv->dev;
612
613 return vb2_queue_init(dst_vq);
614}
615
616static int ipu_csc_scaler_s_ctrl(struct v4l2_ctrl *ctrl)
617{
618 struct ipu_csc_scaler_ctx *ctx = container_of(ctrl->handler,
619 struct ipu_csc_scaler_ctx,
620 ctrl_hdlr);
621 enum ipu_rotate_mode rot_mode;
622 int rotate;
623 bool hflip, vflip;
624 int ret = 0;
625
626 rotate = ctx->rotate;
627 hflip = ctx->hflip;
628 vflip = ctx->vflip;
629
630 switch (ctrl->id) {
631 case V4L2_CID_HFLIP:
632 hflip = ctrl->val;
633 break;
634 case V4L2_CID_VFLIP:
635 vflip = ctrl->val;
636 break;
637 case V4L2_CID_ROTATE:
638 rotate = ctrl->val;
639 break;
640 default:
641 return -EINVAL;
642 }
643
644 ret = ipu_degrees_to_rot_mode(&rot_mode, rotate, hflip, vflip);
645 if (ret)
646 return ret;
647
648 if (rot_mode != ctx->rot_mode) {
649 struct v4l2_pix_format *in_fmt, *out_fmt;
650 struct ipu_image test_in, test_out;
651
652 in_fmt = &ctx->q_data[V4L2_M2M_SRC].cur_fmt;
653 out_fmt = &ctx->q_data[V4L2_M2M_DST].cur_fmt;
654
655 test_in.pix = *in_fmt;
656 test_out.pix = *out_fmt;
657
658 if (ipu_rot_mode_is_irt(rot_mode) !=
659 ipu_rot_mode_is_irt(ctx->rot_mode)) {
660
661 test_out.pix.width = out_fmt->height;
662 test_out.pix.height = out_fmt->width;
663 }
664
665 ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
666
667
668 if (test_in.pix.width != in_fmt->width ||
669 test_in.pix.height != in_fmt->height ||
670 test_in.pix.bytesperline != in_fmt->bytesperline ||
671 test_in.pix.sizeimage != in_fmt->sizeimage) {
672 struct vb2_queue *out_q;
673
674 out_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
675 V4L2_BUF_TYPE_VIDEO_OUTPUT);
676 if (vb2_is_busy(out_q))
677 return -EBUSY;
678 }
679
680
681 if (test_out.pix.width != out_fmt->width ||
682 test_out.pix.height != out_fmt->height ||
683 test_out.pix.bytesperline != out_fmt->bytesperline ||
684 test_out.pix.sizeimage != out_fmt->sizeimage) {
685 struct vb2_queue *cap_q;
686
687 cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
688 V4L2_BUF_TYPE_VIDEO_CAPTURE);
689 if (vb2_is_busy(cap_q))
690 return -EBUSY;
691 }
692
693 *in_fmt = test_in.pix;
694 *out_fmt = test_out.pix;
695
696 ctx->rot_mode = rot_mode;
697 ctx->rotate = rotate;
698 ctx->hflip = hflip;
699 ctx->vflip = vflip;
700 }
701
702 return 0;
703}
704
705static const struct v4l2_ctrl_ops ipu_csc_scaler_ctrl_ops = {
706 .s_ctrl = ipu_csc_scaler_s_ctrl,
707};
708
709static int ipu_csc_scaler_init_controls(struct ipu_csc_scaler_ctx *ctx)
710{
711 struct v4l2_ctrl_handler *hdlr = &ctx->ctrl_hdlr;
712
713 v4l2_ctrl_handler_init(hdlr, 3);
714
715 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_HFLIP,
716 0, 1, 1, 0);
717 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_VFLIP,
718 0, 1, 1, 0);
719 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_ROTATE,
720 0, 270, 90, 0);
721
722 if (hdlr->error) {
723 v4l2_ctrl_handler_free(hdlr);
724 return hdlr->error;
725 }
726
727 v4l2_ctrl_handler_setup(hdlr);
728 return 0;
729}
730
731#define DEFAULT_WIDTH 720
732#define DEFAULT_HEIGHT 576
733static const struct ipu_csc_scaler_q_data ipu_csc_scaler_q_data_default = {
734 .cur_fmt = {
735 .width = DEFAULT_WIDTH,
736 .height = DEFAULT_HEIGHT,
737 .pixelformat = V4L2_PIX_FMT_YUV420,
738 .field = V4L2_FIELD_NONE,
739 .bytesperline = DEFAULT_WIDTH,
740 .sizeimage = DEFAULT_WIDTH * DEFAULT_HEIGHT * 3 / 2,
741 .colorspace = V4L2_COLORSPACE_SRGB,
742 },
743 .rect = {
744 .width = DEFAULT_WIDTH,
745 .height = DEFAULT_HEIGHT,
746 },
747};
748
749
750
751
752static int ipu_csc_scaler_open(struct file *file)
753{
754 struct ipu_csc_scaler_priv *priv = video_drvdata(file);
755 struct ipu_csc_scaler_ctx *ctx = NULL;
756 int ret;
757
758 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
759 if (!ctx)
760 return -ENOMEM;
761
762 ctx->rot_mode = IPU_ROTATE_NONE;
763
764 v4l2_fh_init(&ctx->fh, video_devdata(file));
765 file->private_data = &ctx->fh;
766 v4l2_fh_add(&ctx->fh);
767 ctx->priv = priv;
768
769 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(priv->m2m_dev, ctx,
770 &ipu_csc_scaler_queue_init);
771 if (IS_ERR(ctx->fh.m2m_ctx)) {
772 ret = PTR_ERR(ctx->fh.m2m_ctx);
773 goto err_ctx;
774 }
775
776 ret = ipu_csc_scaler_init_controls(ctx);
777 if (ret)
778 goto err_ctrls;
779
780 ctx->fh.ctrl_handler = &ctx->ctrl_hdlr;
781
782 ctx->q_data[V4L2_M2M_SRC] = ipu_csc_scaler_q_data_default;
783 ctx->q_data[V4L2_M2M_DST] = ipu_csc_scaler_q_data_default;
784
785 dev_dbg(priv->dev, "Created instance %p, m2m_ctx: %p\n", ctx,
786 ctx->fh.m2m_ctx);
787
788 return 0;
789
790err_ctrls:
791 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
792err_ctx:
793 v4l2_fh_del(&ctx->fh);
794 v4l2_fh_exit(&ctx->fh);
795 kfree(ctx);
796 return ret;
797}
798
799static int ipu_csc_scaler_release(struct file *file)
800{
801 struct ipu_csc_scaler_priv *priv = video_drvdata(file);
802 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(file->private_data);
803
804 dev_dbg(priv->dev, "Releasing instance %p\n", ctx);
805
806 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
807 v4l2_fh_del(&ctx->fh);
808 v4l2_fh_exit(&ctx->fh);
809 kfree(ctx);
810
811 return 0;
812}
813
814static const struct v4l2_file_operations ipu_csc_scaler_fops = {
815 .owner = THIS_MODULE,
816 .open = ipu_csc_scaler_open,
817 .release = ipu_csc_scaler_release,
818 .poll = v4l2_m2m_fop_poll,
819 .unlocked_ioctl = video_ioctl2,
820 .mmap = v4l2_m2m_fop_mmap,
821};
822
823static struct v4l2_m2m_ops m2m_ops = {
824 .device_run = device_run,
825 .job_abort = job_abort,
826};
827
828static void ipu_csc_scaler_video_device_release(struct video_device *vdev)
829{
830 struct ipu_csc_scaler_priv *priv = video_get_drvdata(vdev);
831
832 v4l2_m2m_release(priv->m2m_dev);
833 video_device_release(vdev);
834 kfree(priv);
835}
836
837static const struct video_device ipu_csc_scaler_videodev_template = {
838 .name = "ipu_ic_pp csc/scaler",
839 .fops = &ipu_csc_scaler_fops,
840 .ioctl_ops = &ipu_csc_scaler_ioctl_ops,
841 .minor = -1,
842 .release = ipu_csc_scaler_video_device_release,
843 .vfl_dir = VFL_DIR_M2M,
844 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
845};
846
847int imx_media_csc_scaler_device_register(struct imx_media_video_dev *vdev)
848{
849 struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
850 struct video_device *vfd = vdev->vfd;
851 int ret;
852
853 vfd->v4l2_dev = &priv->md->v4l2_dev;
854
855 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
856 if (ret) {
857 v4l2_err(vfd->v4l2_dev, "Failed to register video device\n");
858 return ret;
859 }
860
861 v4l2_info(vfd->v4l2_dev, "Registered %s as /dev/%s\n", vfd->name,
862 video_device_node_name(vfd));
863
864 return 0;
865}
866
867void imx_media_csc_scaler_device_unregister(struct imx_media_video_dev *vdev)
868{
869 struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
870 struct video_device *vfd = priv->vdev.vfd;
871
872 video_unregister_device(vfd);
873}
874
875struct imx_media_video_dev *
876imx_media_csc_scaler_device_init(struct imx_media_dev *md)
877{
878 struct ipu_csc_scaler_priv *priv;
879 struct video_device *vfd;
880 int ret;
881
882 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
883 if (!priv)
884 return ERR_PTR(-ENOMEM);
885
886 priv->md = md;
887 priv->dev = md->md.dev;
888
889 mutex_init(&priv->mutex);
890
891 vfd = video_device_alloc();
892 if (!vfd) {
893 ret = -ENOMEM;
894 goto err_vfd;
895 }
896
897 *vfd = ipu_csc_scaler_videodev_template;
898 vfd->lock = &priv->mutex;
899 priv->vdev.vfd = vfd;
900
901 INIT_LIST_HEAD(&priv->vdev.list);
902
903 video_set_drvdata(vfd, priv);
904
905 priv->m2m_dev = v4l2_m2m_init(&m2m_ops);
906 if (IS_ERR(priv->m2m_dev)) {
907 ret = PTR_ERR(priv->m2m_dev);
908 v4l2_err(&md->v4l2_dev, "Failed to init mem2mem device: %d\n",
909 ret);
910 goto err_m2m;
911 }
912
913 return &priv->vdev;
914
915err_m2m:
916 video_set_drvdata(vfd, NULL);
917err_vfd:
918 kfree(priv);
919 return ERR_PTR(ret);
920}
921
922MODULE_DESCRIPTION("i.MX IPUv3 mem2mem scaler/CSC driver");
923MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
924MODULE_LICENSE("GPL");
925
