1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * i.MX IPUv3 IC PP mem2mem CSC/Scaler driver
5 * Copyright (C) 2011 Pengutronix, Sascha Hauer
6 * Copyright (C) 2018 Pengutronix, Philipp Zabel
8 #include <linux/module.h>
9 #include <linux/delay.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>
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>
24 #include "imx-media.h"
26 #define fh_to_ctx(__fh) container_of(__fh, struct ipu_csc_scaler_ctx, fh)
28 #define IMX_CSC_SCALER_NAME "imx-csc-scaler"
35 struct ipu_csc_scaler_priv {
36 struct imx_media_video_dev vdev;
38 struct v4l2_m2m_dev *m2m_dev;
41 struct imx_media_dev *md;
43 struct mutex mutex; /* mem2mem device mutex */
46 #define vdev_to_priv(v) container_of(v, struct ipu_csc_scaler_priv, vdev)
48 /* Per-queue, driver-specific private data */
49 struct ipu_csc_scaler_q_data {
50 struct v4l2_pix_format cur_fmt;
51 struct v4l2_rect rect;
54 struct ipu_csc_scaler_ctx {
55 struct ipu_csc_scaler_priv *priv;
58 struct ipu_csc_scaler_q_data q_data[2];
59 struct ipu_image_convert_ctx *icc;
61 struct v4l2_ctrl_handler ctrl_hdlr;
65 enum ipu_rotate_mode rot_mode;
66 unsigned int sequence;
69 static struct ipu_csc_scaler_q_data *get_q_data(struct ipu_csc_scaler_ctx *ctx,
70 enum v4l2_buf_type type)
72 if (V4L2_TYPE_IS_OUTPUT(type))
73 return &ctx->q_data[V4L2_M2M_SRC];
75 return &ctx->q_data[V4L2_M2M_DST];
82 static void job_abort(void *_ctx)
84 struct ipu_csc_scaler_ctx *ctx = _ctx;
87 ipu_image_convert_abort(ctx->icc);
90 static void ipu_ic_pp_complete(struct ipu_image_convert_run *run, void *_ctx)
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;
96 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
97 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
99 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
101 src_buf->sequence = ctx->sequence++;
102 dst_buf->sequence = src_buf->sequence;
104 v4l2_m2m_buf_done(src_buf, run->status ? VB2_BUF_STATE_ERROR :
106 v4l2_m2m_buf_done(dst_buf, run->status ? VB2_BUF_STATE_ERROR :
109 v4l2_m2m_job_finish(priv->m2m_dev, ctx->fh.m2m_ctx);
113 static void device_run(void *_ctx)
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;
121 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
122 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
124 run = kzalloc(sizeof(*run), GFP_KERNEL);
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);
132 ret = ipu_image_convert_queue(run);
134 v4l2_err(ctx->priv->vdev.vfd->v4l2_dev,
135 "%s: failed to queue: %d\n", __func__, ret);
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);
152 static int ipu_csc_scaler_querycap(struct file *file, void *priv,
153 struct v4l2_capability *cap)
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);
163 static int ipu_csc_scaler_enum_fmt(struct file *file, void *fh,
164 struct v4l2_fmtdesc *f)
169 ret = imx_media_enum_pixel_formats(&fourcc, f->index,
170 PIXFMT_SEL_YUV_RGB, 0);
174 f->pixelformat = fourcc;
179 static int ipu_csc_scaler_g_fmt(struct file *file, void *priv,
180 struct v4l2_format *f)
182 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
183 struct ipu_csc_scaler_q_data *q_data;
185 q_data = get_q_data(ctx, f->type);
187 f->fmt.pix = q_data->cur_fmt;
192 static int ipu_csc_scaler_try_fmt(struct file *file, void *priv,
193 struct v4l2_format *f)
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;
200 field = f->fmt.pix.field;
201 if (field == V4L2_FIELD_ANY)
202 field = V4L2_FIELD_NONE;
203 else if (field != V4L2_FIELD_NONE)
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);
210 test_out.pix = f->fmt.pix;
211 test_in.pix = q_data_in->cur_fmt;
213 struct ipu_csc_scaler_q_data *q_data_out =
214 get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
216 test_in.pix = f->fmt.pix;
217 test_out.pix = q_data_out->cur_fmt;
220 ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
222 f->fmt.pix = (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
223 test_out.pix : test_in.pix;
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;
240 static int ipu_csc_scaler_s_fmt(struct file *file, void *priv,
241 struct v4l2_format *f)
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;
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",
255 q_data = get_q_data(ctx, f->type);
257 ret = ipu_csc_scaler_try_fmt(file, priv, f);
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;
268 /* Reset cropping/composing rectangle */
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;
274 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
275 /* Set colorimetry on the output queue */
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 /* Propagate colorimetry to the capture queue */
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;
289 * TODO: Setting colorimetry on the capture queue is currently not
290 * supported by the V4L2 API
296 static int ipu_csc_scaler_g_selection(struct file *file, void *priv,
297 struct v4l2_selection *s)
299 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
300 struct ipu_csc_scaler_q_data *q_data;
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)
308 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
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)
315 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
321 if (s->target == V4L2_SEL_TGT_CROP ||
322 s->target == V4L2_SEL_TGT_COMPOSE) {
327 s->r.width = q_data->cur_fmt.width;
328 s->r.height = q_data->cur_fmt.height;
334 static int ipu_csc_scaler_s_selection(struct file *file, void *priv,
335 struct v4l2_selection *s)
337 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(priv);
338 struct ipu_csc_scaler_q_data *q_data;
341 case V4L2_SEL_TGT_CROP:
342 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
345 case V4L2_SEL_TGT_COMPOSE:
346 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
353 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
354 s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
357 q_data = get_q_data(ctx, s->type);
359 /* The input's frame width to the IC must be a multiple of 8 pixels
360 * When performing resizing the frame width must be multiple of burst
361 * size - 8 or 16 pixels as defined by CB#_BURST_16 parameter.
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);
376 /* V4L2_SEL_FLAG_KEEP_CONFIG is only valid for subdevices */
382 static const struct v4l2_ioctl_ops ipu_csc_scaler_ioctl_ops = {
383 .vidioc_querycap = ipu_csc_scaler_querycap,
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,
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,
395 .vidioc_g_selection = ipu_csc_scaler_g_selection,
396 .vidioc_s_selection = ipu_csc_scaler_s_selection,
398 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
399 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
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,
407 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
408 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
410 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
411 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
418 static 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[])
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;
428 q_data = get_q_data(ctx, vq->type);
430 size = q_data->cur_fmt.sizeimage;
435 return sizes[0] < size ? -EINVAL : 0;
440 dev_dbg(ctx->priv->dev, "get %d buffer(s) of size %d each.\n",
446 static int ipu_csc_scaler_buf_prepare(struct vb2_buffer *vb)
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;
454 dev_dbg(ctx->priv->dev, "type: %d\n", vq->type);
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",
466 q_data = get_q_data(ctx, vq->type);
467 size = q_data->cur_fmt.sizeimage;
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);
476 vb2_set_plane_payload(vb, 0, size);
481 static void ipu_csc_scaler_buf_queue(struct vb2_buffer *vb)
483 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
485 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
488 static void ipu_image_from_q_data(struct ipu_image *im,
489 struct ipu_csc_scaler_q_data *q_data)
491 struct v4l2_pix_format *fmt = &q_data->cur_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;
501 static int ipu_csc_scaler_start_streaming(struct vb2_queue *q,
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;
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))
520 v4l2_warn(ctx->priv->vdev.vfd->v4l2_dev, "removing old ICC\n");
521 ipu_image_convert_unprepare(ctx->icc);
524 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
525 ipu_image_from_q_data(&in, q_data);
527 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
528 ipu_image_from_q_data(&out, q_data);
530 ctx->icc = ipu_image_convert_prepare(ipu, ic_task, &in, &out,
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);
538 v4l2_err(ctx->priv->vdev.vfd->v4l2_dev, "%s: error %d\n",
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);
550 static void ipu_csc_scaler_stop_streaming(struct vb2_queue *q)
552 struct ipu_csc_scaler_ctx *ctx = vb2_get_drv_priv(q);
553 struct vb2_v4l2_buffer *buf;
556 ipu_image_convert_unprepare(ctx->icc);
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);
566 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
567 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
571 static 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,
581 static int ipu_csc_scaler_queue_init(void *priv, struct vb2_queue *src_vq,
582 struct vb2_queue *dst_vq)
584 struct ipu_csc_scaler_ctx *ctx = priv;
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;
598 ret = vb2_queue_init(src_vq);
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;
613 return vb2_queue_init(dst_vq);
616 static int ipu_csc_scaler_s_ctrl(struct v4l2_ctrl *ctrl)
618 struct ipu_csc_scaler_ctx *ctx = container_of(ctrl->handler,
619 struct ipu_csc_scaler_ctx,
621 enum ipu_rotate_mode rot_mode;
626 rotate = ctx->rotate;
637 case V4L2_CID_ROTATE:
644 ret = ipu_degrees_to_rot_mode(&rot_mode, rotate, hflip, vflip);
648 if (rot_mode != ctx->rot_mode) {
649 struct v4l2_pix_format *in_fmt, *out_fmt;
650 struct ipu_image test_in, test_out;
652 in_fmt = &ctx->q_data[V4L2_M2M_SRC].cur_fmt;
653 out_fmt = &ctx->q_data[V4L2_M2M_DST].cur_fmt;
655 test_in.pix = *in_fmt;
656 test_out.pix = *out_fmt;
658 if (ipu_rot_mode_is_irt(rot_mode) !=
659 ipu_rot_mode_is_irt(ctx->rot_mode)) {
660 /* Switch width & height to keep aspect ratio intact */
661 test_out.pix.width = out_fmt->height;
662 test_out.pix.height = out_fmt->width;
665 ipu_image_convert_adjust(&test_in, &test_out, ctx->rot_mode);
667 /* Check if output format needs to be changed */
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;
674 out_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
675 V4L2_BUF_TYPE_VIDEO_OUTPUT);
676 if (vb2_is_busy(out_q))
680 /* Check if capture format needs to be changed */
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;
687 cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
688 V4L2_BUF_TYPE_VIDEO_CAPTURE);
689 if (vb2_is_busy(cap_q))
693 *in_fmt = test_in.pix;
694 *out_fmt = test_out.pix;
696 ctx->rot_mode = rot_mode;
697 ctx->rotate = rotate;
705 static const struct v4l2_ctrl_ops ipu_csc_scaler_ctrl_ops = {
706 .s_ctrl = ipu_csc_scaler_s_ctrl,
709 static int ipu_csc_scaler_init_controls(struct ipu_csc_scaler_ctx *ctx)
711 struct v4l2_ctrl_handler *hdlr = &ctx->ctrl_hdlr;
713 v4l2_ctrl_handler_init(hdlr, 3);
715 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_HFLIP,
717 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_VFLIP,
719 v4l2_ctrl_new_std(hdlr, &ipu_csc_scaler_ctrl_ops, V4L2_CID_ROTATE,
723 v4l2_ctrl_handler_free(hdlr);
727 v4l2_ctrl_handler_setup(hdlr);
731 #define DEFAULT_WIDTH 720
732 #define DEFAULT_HEIGHT 576
733 static const struct ipu_csc_scaler_q_data ipu_csc_scaler_q_data_default = {
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,
744 .width = DEFAULT_WIDTH,
745 .height = DEFAULT_HEIGHT,
752 static int ipu_csc_scaler_open(struct file *file)
754 struct ipu_csc_scaler_priv *priv = video_drvdata(file);
755 struct ipu_csc_scaler_ctx *ctx = NULL;
758 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
762 ctx->rot_mode = IPU_ROTATE_NONE;
764 v4l2_fh_init(&ctx->fh, video_devdata(file));
765 file->private_data = &ctx->fh;
766 v4l2_fh_add(&ctx->fh);
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);
776 ret = ipu_csc_scaler_init_controls(ctx);
780 ctx->fh.ctrl_handler = &ctx->ctrl_hdlr;
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;
785 dev_dbg(priv->dev, "Created instance %p, m2m_ctx: %p\n", ctx,
791 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
793 v4l2_fh_del(&ctx->fh);
794 v4l2_fh_exit(&ctx->fh);
799 static int ipu_csc_scaler_release(struct file *file)
801 struct ipu_csc_scaler_priv *priv = video_drvdata(file);
802 struct ipu_csc_scaler_ctx *ctx = fh_to_ctx(file->private_data);
804 dev_dbg(priv->dev, "Releasing instance %p\n", ctx);
806 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
807 v4l2_fh_del(&ctx->fh);
808 v4l2_fh_exit(&ctx->fh);
814 static 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,
823 static const struct v4l2_m2m_ops m2m_ops = {
824 .device_run = device_run,
825 .job_abort = job_abort,
828 static void ipu_csc_scaler_video_device_release(struct video_device *vdev)
830 struct ipu_csc_scaler_priv *priv = video_get_drvdata(vdev);
832 v4l2_m2m_release(priv->m2m_dev);
833 video_device_release(vdev);
837 static 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,
842 .release = ipu_csc_scaler_video_device_release,
843 .vfl_dir = VFL_DIR_M2M,
844 .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
847 int imx_media_csc_scaler_device_register(struct imx_media_video_dev *vdev)
849 struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
850 struct video_device *vfd = vdev->vfd;
853 vfd->v4l2_dev = &priv->md->v4l2_dev;
855 ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
857 v4l2_err(vfd->v4l2_dev, "Failed to register video device\n");
861 v4l2_info(vfd->v4l2_dev, "Registered %s as /dev/%s\n", vfd->name,
862 video_device_node_name(vfd));
867 void imx_media_csc_scaler_device_unregister(struct imx_media_video_dev *vdev)
869 struct ipu_csc_scaler_priv *priv = vdev_to_priv(vdev);
870 struct video_device *vfd = priv->vdev.vfd;
872 video_unregister_device(vfd);
875 struct imx_media_video_dev *
876 imx_media_csc_scaler_device_init(struct imx_media_dev *md)
878 struct ipu_csc_scaler_priv *priv;
879 struct video_device *vfd;
882 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
884 return ERR_PTR(-ENOMEM);
887 priv->dev = md->md.dev;
889 mutex_init(&priv->mutex);
891 vfd = video_device_alloc();
897 *vfd = ipu_csc_scaler_videodev_template;
898 vfd->lock = &priv->mutex;
899 priv->vdev.vfd = vfd;
901 INIT_LIST_HEAD(&priv->vdev.list);
903 video_set_drvdata(vfd, priv);
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",
916 video_set_drvdata(vfd, NULL);
922 MODULE_DESCRIPTION("i.MX IPUv3 mem2mem scaler/CSC driver");
923 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
924 MODULE_LICENSE("GPL");