3  * Driver for Renesas R-Car VIN
20 #include "rcar-vin.h"
91 const struct rvin_video_format *rvin_format_from_pixel(struct rvin_dev *vin,  in rvin_format_from_pixel()  argument
98 		if (vin->info->model == RCAR_M1)  in rvin_format_from_pixel()
106 		if (!vin->info->nv12 || !(BIT(vin->id) & 0x3333))  in rvin_format_from_pixel()
120 static u32 rvin_format_bytesperline(struct rvin_dev *vin,  in rvin_format_bytesperline()  argument
126 	fmt = rvin_format_from_pixel(vin, pix->pixelformat);  in rvin_format_bytesperline()
159 static void rvin_format_align(struct rvin_dev *vin, struct v4l2_pix_format *pix)  in rvin_format_align()  argument
163 	if (!rvin_format_from_pixel(vin, pix->pixelformat))  in rvin_format_align()
200 	/* Limit to VIN capabilities */  in rvin_format_align()
201 	v4l_bound_align_image(&pix->width, 5, vin->info->max_width, walign,  in rvin_format_align()
202 			      &pix->height, 2, vin->info->max_height, 0, 0);  in rvin_format_align()
204 	pix->bytesperline = rvin_format_bytesperline(vin, pix);  in rvin_format_align()
207 	vin_dbg(vin, "Format %ux%u bpl: %u size: %u\n",  in rvin_format_align()
215 static int rvin_reset_format(struct rvin_dev *vin)  in rvin_reset_format()  argument
219 		.pad = vin->parallel.source_pad,  in rvin_reset_format()
223 	ret = v4l2_subdev_call(vin_to_source(vin), pad, get_fmt, NULL, &fmt);  in rvin_reset_format()
227 	v4l2_fill_pix_format(&vin->format, &fmt.format);  in rvin_reset_format()
229 	vin->src_rect.top = 0;  in rvin_reset_format()
230 	vin->src_rect.left = 0;  in rvin_reset_format()
231 	vin->src_rect.width = vin->format.width;  in rvin_reset_format()
232 	vin->src_rect.height = vin->format.height;  in rvin_reset_format()
235 	if (vin->format.field == V4L2_FIELD_ALTERNATE) {  in rvin_reset_format()
236 		vin->format.field = V4L2_FIELD_INTERLACED;  in rvin_reset_format()
237 		vin->format.height *= 2;  in rvin_reset_format()
240 	rvin_format_align(vin, &vin->format);  in rvin_reset_format()
242 	vin->crop = vin->src_rect;  in rvin_reset_format()
244 	vin->compose.top = 0;  in rvin_reset_format()
245 	vin->compose.left = 0;  in rvin_reset_format()
246 	vin->compose.width = vin->format.width;  in rvin_reset_format()
247 	vin->compose.height = vin->format.height;  in rvin_reset_format()
252 static int rvin_try_format(struct rvin_dev *vin, u32 which,  in rvin_try_format()  argument
256 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_try_format()
261 		.pad = vin->parallel.source_pad,  in rvin_try_format()
275 	if (!rvin_format_from_pixel(vin, pix->pixelformat))  in rvin_try_format()
278 	v4l2_fill_mbus_format(&format.format, pix, vin->mbus_code);  in rvin_try_format()
305 	rvin_format_align(vin, pix);  in rvin_try_format()
323 	struct rvin_dev *vin = video_drvdata(file);  in rvin_try_fmt_vid_cap()  local
325 	return rvin_try_format(vin, V4L2_SUBDEV_FORMAT_TRY, &f->fmt.pix, NULL);  in rvin_try_fmt_vid_cap()
331 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_fmt_vid_cap()  local
335 	if (vb2_is_busy(&vin->queue))  in rvin_s_fmt_vid_cap()
338 	ret = rvin_try_format(vin, V4L2_SUBDEV_FORMAT_ACTIVE, &f->fmt.pix,  in rvin_s_fmt_vid_cap()
343 	vin->format = f->fmt.pix;  in rvin_s_fmt_vid_cap()
347 	fmt_rect.width = vin->format.width;  in rvin_s_fmt_vid_cap()
348 	fmt_rect.height = vin->format.height;  in rvin_s_fmt_vid_cap()
350 	v4l2_rect_map_inside(&vin->crop, &src_rect);  in rvin_s_fmt_vid_cap()
351 	v4l2_rect_map_inside(&vin->compose, &fmt_rect);  in rvin_s_fmt_vid_cap()
352 	vin->src_rect = src_rect;  in rvin_s_fmt_vid_cap()
360 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_fmt_vid_cap()  local
362 	f->fmt.pix = vin->format;  in rvin_g_fmt_vid_cap()
370 	struct rvin_dev *vin = video_drvdata(file);  in rvin_enum_fmt_vid_cap()  local
377 	 * with VIN, so all supported YCbCr and RGB media bus codes can produce  in rvin_enum_fmt_vid_cap()
419 		if (rvin_format_from_pixel(vin, rvin_formats[i].fourcc))  in rvin_enum_fmt_vid_cap()
434 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_selection()  local
443 		s->r.width = vin->src_rect.width;  in rvin_g_selection()
444 		s->r.height = vin->src_rect.height;  in rvin_g_selection()
447 		s->r = vin->crop;  in rvin_g_selection()
452 		s->r.width = vin->format.width;  in rvin_g_selection()
453 		s->r.height = vin->format.height;  in rvin_g_selection()
456 		s->r = vin->compose;  in rvin_g_selection()
468 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_selection()  local
486 		max_rect.width = vin->src_rect.width;  in rvin_s_selection()
487 		max_rect.height = vin->src_rect.height;  in rvin_s_selection()
490 		v4l_bound_align_image(&r.width, 6, vin->src_rect.width, 0,  in rvin_s_selection()
491 				      &r.height, 2, vin->src_rect.height, 0, 0);  in rvin_s_selection()
494 				 vin->src_rect.height - r.height);  in rvin_s_selection()
495 		r.left = clamp_t(s32, r.left, 0, vin->src_rect.width - r.width);  in rvin_s_selection()
497 		vin->crop = s->r = r;  in rvin_s_selection()
499 		vin_dbg(vin, "Cropped %dx%d@%d:%d of %dx%d\n",  in rvin_s_selection()
501 			vin->src_rect.width, vin->src_rect.height);  in rvin_s_selection()
506 		max_rect.width = vin->format.width;  in rvin_s_selection()
507 		max_rect.height = vin->format.height;  in rvin_s_selection()
515 		while ((r.top * vin->format.bytesperline) & HW_BUFFER_MASK)  in rvin_s_selection()
518 		fmt = rvin_format_from_pixel(vin, vin->format.pixelformat);  in rvin_s_selection()
522 		vin->compose = s->r = r;  in rvin_s_selection()
524 		vin_dbg(vin, "Compose %dx%d@%d:%d in %dx%d\n",  in rvin_s_selection()
526 			vin->format.width, vin->format.height);  in rvin_s_selection()
533 	rvin_crop_scale_comp(vin);  in rvin_s_selection()
541 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_parm()  local
542 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_g_parm()
544 	return v4l2_g_parm_cap(&vin->vdev, sd, parm);  in rvin_g_parm()
550 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_parm()  local
551 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_s_parm()
553 	return v4l2_s_parm_cap(&vin->vdev, sd, parm);  in rvin_s_parm()
559 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_pixelaspect()  local
560 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_g_pixelaspect()
571 	struct rvin_dev *vin = video_drvdata(file);  in rvin_enum_input()  local
572 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_enum_input()
589 		i->std = vin->vdev.tvnorms;  in rvin_enum_input()
612 	struct rvin_dev *vin = video_drvdata(file);  in rvin_querystd()  local
613 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_querystd()
620 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_std()  local
623 	ret = v4l2_subdev_call(vin_to_source(vin), video, s_std, a);  in rvin_s_std()
627 	vin->std = a;  in rvin_s_std()
630 	return rvin_reset_format(vin);  in rvin_s_std()
635 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_std()  local
637 	if (v4l2_subdev_has_op(vin_to_source(vin), pad, dv_timings_cap))  in rvin_g_std()
640 	*a = vin->std;  in rvin_g_std()
658 	struct rvin_dev *vin = video_drvdata(file);  in rvin_enum_dv_timings()  local
659 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_enum_dv_timings()
665 	timings->pad = vin->parallel.sink_pad;  in rvin_enum_dv_timings()
677 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_dv_timings()  local
678 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_s_dv_timings()
686 	return rvin_reset_format(vin);  in rvin_s_dv_timings()
692 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_dv_timings()  local
693 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_g_dv_timings()
701 	struct rvin_dev *vin = video_drvdata(file);  in rvin_query_dv_timings()  local
702 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_query_dv_timings()
710 	struct rvin_dev *vin = video_drvdata(file);  in rvin_dv_timings_cap()  local
711 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_dv_timings_cap()
717 	cap->pad = vin->parallel.sink_pad;  in rvin_dv_timings_cap()
728 	struct rvin_dev *vin = video_drvdata(file);  in rvin_g_edid()  local
729 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_g_edid()
735 	edid->pad = vin->parallel.sink_pad;  in rvin_g_edid()
746 	struct rvin_dev *vin = video_drvdata(file);  in rvin_s_edid()  local
747 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_s_edid()
753 	edid->pad = vin->parallel.sink_pad;  in rvin_s_edid()
813 static void rvin_mc_try_format(struct rvin_dev *vin,  in rvin_mc_try_format()  argument
828 	rvin_format_align(vin, pix);  in rvin_mc_try_format()
834 	struct rvin_dev *vin = video_drvdata(file);  in rvin_mc_try_fmt_vid_cap()  local
836 	rvin_mc_try_format(vin, &f->fmt.pix);  in rvin_mc_try_fmt_vid_cap()
844 	struct rvin_dev *vin = video_drvdata(file);  in rvin_mc_s_fmt_vid_cap()  local
846 	if (vb2_is_busy(&vin->queue))  in rvin_mc_s_fmt_vid_cap()
849 	rvin_mc_try_format(vin, &f->fmt.pix);  in rvin_mc_s_fmt_vid_cap()
851 	vin->format = f->fmt.pix;  in rvin_mc_s_fmt_vid_cap()
853 	vin->crop.top = 0;  in rvin_mc_s_fmt_vid_cap()
854 	vin->crop.left = 0;  in rvin_mc_s_fmt_vid_cap()
855 	vin->crop.width = vin->format.width;  in rvin_mc_s_fmt_vid_cap()
856 	vin->crop.height = vin->format.height;  in rvin_mc_s_fmt_vid_cap()
857 	vin->compose = vin->crop;  in rvin_mc_s_fmt_vid_cap()
888 static int rvin_power_parallel(struct rvin_dev *vin, bool on)  in rvin_power_parallel()  argument
890 	struct v4l2_subdev *sd = vin_to_source(vin);  in rvin_power_parallel()
903 	struct rvin_dev *vin = video_drvdata(file);  in rvin_open()  local
906 	ret = pm_runtime_resume_and_get(vin->dev);  in rvin_open()
910 	ret = mutex_lock_interruptible(&vin->lock);  in rvin_open()
914 	file->private_data = vin;  in rvin_open()
920 	if (vin->info->use_mc)  in rvin_open()
921 		ret = v4l2_pipeline_pm_get(&vin->vdev.entity);  in rvin_open()
923 		ret = rvin_power_parallel(vin, true);  in rvin_open()
928 	ret = v4l2_ctrl_handler_setup(&vin->ctrl_handler);  in rvin_open()
932 	mutex_unlock(&vin->lock);  in rvin_open()
936 	if (vin->info->use_mc)  in rvin_open()
937 		v4l2_pipeline_pm_put(&vin->vdev.entity);  in rvin_open()
939 		rvin_power_parallel(vin, false);  in rvin_open()
943 	mutex_unlock(&vin->lock);  in rvin_open()
945 	pm_runtime_put(vin->dev);  in rvin_open()
952 	struct rvin_dev *vin = video_drvdata(file);  in rvin_release()  local
956 	mutex_lock(&vin->lock);  in rvin_release()
964 	if (vin->info->use_mc) {  in rvin_release()
965 		v4l2_pipeline_pm_put(&vin->vdev.entity);  in rvin_release()
968 			rvin_power_parallel(vin, false);  in rvin_release()
971 	mutex_unlock(&vin->lock);  in rvin_release()
973 	pm_runtime_put(vin->dev);  in rvin_release()
988 void rvin_v4l2_unregister(struct rvin_dev *vin)  in rvin_v4l2_unregister()  argument
990 	if (!video_is_registered(&vin->vdev))  in rvin_v4l2_unregister()
993 	v4l2_info(&vin->v4l2_dev, "Removing %s\n",  in rvin_v4l2_unregister()
994 		  video_device_node_name(&vin->vdev));  in rvin_v4l2_unregister()
997 	video_unregister_device(&vin->vdev);  in rvin_v4l2_unregister()
1000 static void rvin_notify_video_device(struct rvin_dev *vin,  in rvin_notify_video_device()  argument
1005 		v4l2_event_queue(&vin->vdev, arg);  in rvin_notify_video_device()
1018 	struct rvin_dev *vin =  in rvin_notify()  local
1023 	if (!vin->info->use_mc) {  in rvin_notify()
1024 		rvin_notify_video_device(vin, notification, arg);  in rvin_notify()
1028 	group = vin->group;  in rvin_notify()
1031 		vin = group->vin[i];  in rvin_notify()
1032 		if (!vin)  in rvin_notify()
1035 		pad = media_pad_remote_pad_first(&vin->pad);  in rvin_notify()
1043 		rvin_notify_video_device(vin, notification, arg);  in rvin_notify()
1047 int rvin_v4l2_register(struct rvin_dev *vin)  in rvin_v4l2_register()  argument
1049 	struct video_device *vdev = &vin->vdev;  in rvin_v4l2_register()
1052 	vin->v4l2_dev.notify = rvin_notify;  in rvin_v4l2_register()
1055 	vdev->v4l2_dev = &vin->v4l2_dev;  in rvin_v4l2_register()
1056 	vdev->queue = &vin->queue;  in rvin_v4l2_register()
1057 	snprintf(vdev->name, sizeof(vdev->name), "VIN%u output", vin->id);  in rvin_v4l2_register()
1059 	vdev->lock = &vin->lock;  in rvin_v4l2_register()
1065 	vin->format.pixelformat	= RVIN_DEFAULT_FORMAT;  in rvin_v4l2_register()
1066 	vin->format.width = RVIN_DEFAULT_WIDTH;  in rvin_v4l2_register()
1067 	vin->format.height = RVIN_DEFAULT_HEIGHT;  in rvin_v4l2_register()
1068 	vin->format.field = RVIN_DEFAULT_FIELD;  in rvin_v4l2_register()
1069 	vin->format.colorspace = RVIN_DEFAULT_COLORSPACE;  in rvin_v4l2_register()
1071 	if (vin->info->use_mc) {  in rvin_v4l2_register()
1076 		rvin_reset_format(vin);  in rvin_v4l2_register()
1079 	rvin_format_align(vin, &vin->format);  in rvin_v4l2_register()
1081 	ret = video_register_device(&vin->vdev, VFL_TYPE_VIDEO, -1);  in rvin_v4l2_register()
1083 		vin_err(vin, "Failed to register video device\n");  in rvin_v4l2_register()
1087 	video_set_drvdata(&vin->vdev, vin);  in rvin_v4l2_register()
1089 	v4l2_info(&vin->v4l2_dev, "Device registered as %s\n",  in rvin_v4l2_register()
1090 		  video_device_node_name(&vin->vdev));  in rvin_v4l2_register()