[deliverable/linux.git] / drivers / media / platform / vsp1 / vsp1_uds.c

/*
 * vsp1_uds.c  --  R-Car VSP1 Up and Down Scaler
 *
 * Copyright (C) 2013-2014 Renesas Electronics Corporation
 *
 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/device.h>
#include <linux/gfp.h>

#include <media/v4l2-subdev.h>

#include "vsp1.h"
#include "vsp1_dl.h"
#include "vsp1_uds.h"

#define UDS_MIN_SIZE				4U
#define UDS_MAX_SIZE				8190U

#define UDS_MIN_FACTOR				0x0100
#define UDS_MAX_FACTOR				0xffff

/* -----------------------------------------------------------------------------
 * Device Access
 */

static inline void vsp1_uds_write(struct vsp1_uds *uds, struct vsp1_dl_list *dl,
				  u32 reg, u32 data)
{
	vsp1_dl_list_write(dl, reg + uds->entity.index * VI6_UDS_OFFSET, data);
}

/* -----------------------------------------------------------------------------
 * Scaling Computation
 */

void vsp1_uds_set_alpha(struct vsp1_entity *entity, struct vsp1_dl_list *dl,
			unsigned int alpha)
{
	struct vsp1_uds *uds = to_uds(&entity->subdev);

	vsp1_uds_write(uds, dl, VI6_UDS_ALPVAL,
		       alpha << VI6_UDS_ALPVAL_VAL0_SHIFT);
}

/*
 * uds_output_size - Return the output size for an input size and scaling ratio
 * @input: input size in pixels
 * @ratio: scaling ratio in U4.12 fixed-point format
 */
static unsigned int uds_output_size(unsigned int input, unsigned int ratio)
{
	if (ratio > 4096) {
		/* Down-scaling */
		unsigned int mp;

		mp = ratio / 4096;
		mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);

		return (input - 1) / mp * mp * 4096 / ratio + 1;
	} else {
		/* Up-scaling */
		return (input - 1) * 4096 / ratio + 1;
	}
}

/*
 * uds_output_limits - Return the min and max output sizes for an input size
 * @input: input size in pixels
 * @minimum: minimum output size (returned)
 * @maximum: maximum output size (returned)
 */
static void uds_output_limits(unsigned int input,
			      unsigned int *minimum, unsigned int *maximum)
{
	*minimum = max(uds_output_size(input, UDS_MAX_FACTOR), UDS_MIN_SIZE);
	*maximum = min(uds_output_size(input, UDS_MIN_FACTOR), UDS_MAX_SIZE);
}

/*
 * uds_passband_width - Return the passband filter width for a scaling ratio
 * @ratio: scaling ratio in U4.12 fixed-point format
 */
static unsigned int uds_passband_width(unsigned int ratio)
{
	if (ratio >= 4096) {
		/* Down-scaling */
		unsigned int mp;

		mp = ratio / 4096;
		mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);

		return 64 * 4096 * mp / ratio;
	} else {
		/* Up-scaling */
		return 64;
	}
}

static unsigned int uds_compute_ratio(unsigned int input, unsigned int output)
{
	/* TODO: This is an approximation that will need to be refined. */
	return (input - 1) * 4096 / (output - 1);
}

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Pad Operations
 */

static int uds_enum_mbus_code(struct v4l2_subdev *subdev,
			      struct v4l2_subdev_pad_config *cfg,
			      struct v4l2_subdev_mbus_code_enum *code)
{
	static const unsigned int codes[] = {
		MEDIA_BUS_FMT_ARGB8888_1X32,
		MEDIA_BUS_FMT_AYUV8_1X32,
	};

	return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
					  ARRAY_SIZE(codes));
}

static int uds_enum_frame_size(struct v4l2_subdev *subdev,
			       struct v4l2_subdev_pad_config *cfg,
			       struct v4l2_subdev_frame_size_enum *fse)
{
	struct vsp1_uds *uds = to_uds(subdev);
	struct v4l2_subdev_pad_config *config;
	struct v4l2_mbus_framefmt *format;

	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fse->which);
	if (!config)
		return -EINVAL;

	format = vsp1_entity_get_pad_format(&uds->entity, config,
					    UDS_PAD_SINK);

	if (fse->index || fse->code != format->code)
		return -EINVAL;

	if (fse->pad == UDS_PAD_SINK) {
		fse->min_width = UDS_MIN_SIZE;
		fse->max_width = UDS_MAX_SIZE;
		fse->min_height = UDS_MIN_SIZE;
		fse->max_height = UDS_MAX_SIZE;
	} else {
		uds_output_limits(format->width, &fse->min_width,
				  &fse->max_width);
		uds_output_limits(format->height, &fse->min_height,
				  &fse->max_height);
	}

	return 0;
}

static void uds_try_format(struct vsp1_uds *uds,
			   struct v4l2_subdev_pad_config *config,
			   unsigned int pad, struct v4l2_mbus_framefmt *fmt)
{
	struct v4l2_mbus_framefmt *format;
	unsigned int minimum;
	unsigned int maximum;

	switch (pad) {
	case UDS_PAD_SINK:
		/* Default to YUV if the requested format is not supported. */
		if (fmt->code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
		    fmt->code != MEDIA_BUS_FMT_AYUV8_1X32)
			fmt->code = MEDIA_BUS_FMT_AYUV8_1X32;

		fmt->width = clamp(fmt->width, UDS_MIN_SIZE, UDS_MAX_SIZE);
		fmt->height = clamp(fmt->height, UDS_MIN_SIZE, UDS_MAX_SIZE);
		break;

	case UDS_PAD_SOURCE:
		/* The UDS scales but can't perform format conversion. */
		format = vsp1_entity_get_pad_format(&uds->entity, config,
						    UDS_PAD_SINK);
		fmt->code = format->code;

		uds_output_limits(format->width, &minimum, &maximum);
		fmt->width = clamp(fmt->width, minimum, maximum);
		uds_output_limits(format->height, &minimum, &maximum);
		fmt->height = clamp(fmt->height, minimum, maximum);
		break;
	}

	fmt->field = V4L2_FIELD_NONE;
	fmt->colorspace = V4L2_COLORSPACE_SRGB;
}

static int uds_set_format(struct v4l2_subdev *subdev,
			  struct v4l2_subdev_pad_config *cfg,
			  struct v4l2_subdev_format *fmt)
{
	struct vsp1_uds *uds = to_uds(subdev);
	struct v4l2_subdev_pad_config *config;
	struct v4l2_mbus_framefmt *format;

	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fmt->which);
	if (!config)
		return -EINVAL;

	uds_try_format(uds, config, fmt->pad, &fmt->format);

	format = vsp1_entity_get_pad_format(&uds->entity, config, fmt->pad);
	*format = fmt->format;

	if (fmt->pad == UDS_PAD_SINK) {
		/* Propagate the format to the source pad. */
		format = vsp1_entity_get_pad_format(&uds->entity, config,
						    UDS_PAD_SOURCE);
		*format = fmt->format;

		uds_try_format(uds, config, UDS_PAD_SOURCE, format);
	}

	return 0;
}

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Operations
 */

static const struct v4l2_subdev_pad_ops uds_pad_ops = {
	.init_cfg = vsp1_entity_init_cfg,
	.enum_mbus_code = uds_enum_mbus_code,
	.enum_frame_size = uds_enum_frame_size,
	.get_fmt = vsp1_subdev_get_pad_format,
	.set_fmt = uds_set_format,
};

static const struct v4l2_subdev_ops uds_ops = {
	.pad    = &uds_pad_ops,
};

/* -----------------------------------------------------------------------------
 * VSP1 Entity Operations
 */

static void uds_configure(struct vsp1_entity *entity,
			  struct vsp1_pipeline *pipe,
			  struct vsp1_dl_list *dl, bool full)
{
	struct vsp1_uds *uds = to_uds(&entity->subdev);
	const struct v4l2_mbus_framefmt *output;
	const struct v4l2_mbus_framefmt *input;
	unsigned int hscale;
	unsigned int vscale;
	bool multitap;

	if (!full)
		return;

	input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
					   UDS_PAD_SINK);
	output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
					    UDS_PAD_SOURCE);

	hscale = uds_compute_ratio(input->width, output->width);
	vscale = uds_compute_ratio(input->height, output->height);

	dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale);

	/* Multi-tap scaling can't be enabled along with alpha scaling when
	 * scaling down with a factor lower than or equal to 1/2 in either
	 * direction.
	 */
	if (uds->scale_alpha && (hscale >= 8192 || vscale >= 8192))
		multitap = false;
	else
		multitap = true;

	vsp1_uds_write(uds, dl, VI6_UDS_CTRL,
		       (uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) |
		       (multitap ? VI6_UDS_CTRL_BC : 0));

	vsp1_uds_write(uds, dl, VI6_UDS_PASS_BWIDTH,
		       (uds_passband_width(hscale)
				<< VI6_UDS_PASS_BWIDTH_H_SHIFT) |
		       (uds_passband_width(vscale)
				<< VI6_UDS_PASS_BWIDTH_V_SHIFT));

	/* Set the scaling ratios and the output size. */
	vsp1_uds_write(uds, dl, VI6_UDS_SCALE,
		       (hscale << VI6_UDS_SCALE_HFRAC_SHIFT) |
		       (vscale << VI6_UDS_SCALE_VFRAC_SHIFT));
	vsp1_uds_write(uds, dl, VI6_UDS_CLIP_SIZE,
		       (output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) |
		       (output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT));
}

static const struct vsp1_entity_operations uds_entity_ops = {
	.configure = uds_configure,
};

/* -----------------------------------------------------------------------------
 * Initialization and Cleanup
 */

struct vsp1_uds *vsp1_uds_create(struct vsp1_device *vsp1, unsigned int index)
{
	struct vsp1_uds *uds;
	char name[6];
	int ret;

	uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL);
	if (uds == NULL)
		return ERR_PTR(-ENOMEM);

	uds->entity.ops = &uds_entity_ops;
	uds->entity.type = VSP1_ENTITY_UDS;
	uds->entity.index = index;

	sprintf(name, "uds.%u", index);
	ret = vsp1_entity_init(vsp1, &uds->entity, name, 2, &uds_ops,
			       MEDIA_ENT_F_PROC_VIDEO_SCALER);
	if (ret < 0)
		return ERR_PTR(ret);

	return uds;
}
Commit	Line	Data
26e0ca22 LP	1	/*
	2	* vsp1_uds.c -- R-Car VSP1 Up and Down Scaler
	3	*
8a1edc55	4	* Copyright (C) 2013-2014 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/device.h>
	15	#include <linux/gfp.h>
	16
	17	#include <media/v4l2-subdev.h>
	18
	19	#include "vsp1.h"
5e8dbbf3	20	#include "vsp1_dl.h"
26e0ca22 LP	21	#include "vsp1_uds.h"
	22
	23	#define UDS_MIN_SIZE 4U
	24	#define UDS_MAX_SIZE 8190U
	25
	26	#define UDS_MIN_FACTOR 0x0100
	27	#define UDS_MAX_FACTOR 0xffff
	28
	29	/* -----------------------------------------------------------------------------
	30	* Device Access
	31	*/
	32
5e8dbbf3 LP	33	static inline void vsp1_uds_write(struct vsp1_uds uds, struct vsp1_dl_list dl,
5e8dbbf3 LP	34	u32 reg, u32 data)
26e0ca22	35	{
5e8dbbf3	36	vsp1_dl_list_write(dl, reg + uds->entity.index * VI6_UDS_OFFSET, data);
26e0ca22 LP	37	}
	38
	39	/* -----------------------------------------------------------------------------
	40	* Scaling Computation
	41	*/
	42
07a23c61	43	void vsp1_uds_set_alpha(struct vsp1_entity entity, struct vsp1_dl_list dl,
5e8dbbf3	44	unsigned int alpha)
bdc2df62	45	{
07a23c61 LP	46	struct vsp1_uds *uds = to_uds(&entity->subdev);
07a23c61 LP	47
5e8dbbf3 LP	48	vsp1_uds_write(uds, dl, VI6_UDS_ALPVAL,
5e8dbbf3 LP	49	alpha << VI6_UDS_ALPVAL_VAL0_SHIFT);
bdc2df62 LP	50	}
bdc2df62 LP	51
26e0ca22 LP	52	/*
	53	* uds_output_size - Return the output size for an input size and scaling ratio
	54	* @input: input size in pixels
	55	* @ratio: scaling ratio in U4.12 fixed-point format
	56	*/
	57	static unsigned int uds_output_size(unsigned int input, unsigned int ratio)
	58	{
	59	if (ratio > 4096) {
	60	/* Down-scaling */
	61	unsigned int mp;
	62
	63	mp = ratio / 4096;
	64	mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
	65
	66	return (input - 1) / mp * mp * 4096 / ratio + 1;
	67	} else {
	68	/* Up-scaling */
	69	return (input - 1) * 4096 / ratio + 1;
	70	}
	71	}
	72
	73	/*
	74	* uds_output_limits - Return the min and max output sizes for an input size
	75	* @input: input size in pixels
	76	* @minimum: minimum output size (returned)
	77	* @maximum: maximum output size (returned)
	78	*/
	79	static void uds_output_limits(unsigned int input,
	80	unsigned int minimum, unsigned int maximum)
	81	{
	82	*minimum = max(uds_output_size(input, UDS_MAX_FACTOR), UDS_MIN_SIZE);
	83	*maximum = min(uds_output_size(input, UDS_MIN_FACTOR), UDS_MAX_SIZE);
	84	}
	85
	86	/*
	87	* uds_passband_width - Return the passband filter width for a scaling ratio
	88	* @ratio: scaling ratio in U4.12 fixed-point format
	89	*/
	90	static unsigned int uds_passband_width(unsigned int ratio)
	91	{
	92	if (ratio >= 4096) {
	93	/* Down-scaling */
	94	unsigned int mp;
	95
	96	mp = ratio / 4096;
	97	mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
	98
	99	return 64 * 4096 * mp / ratio;
	100	} else {
	101	/* Up-scaling */
	102	return 64;
	103	}
	104	}
	105
	106	static unsigned int uds_compute_ratio(unsigned int input, unsigned int output)
	107	{
	108	/* TODO: This is an approximation that will need to be refined. */
	109	return (input - 1) * 4096 / (output - 1);
	110	}
	111
26e0ca22 LP	112	/* -----------------------------------------------------------------------------
	113	* V4L2 Subdevice Pad Operations
	114	*/
	115
	116	static int uds_enum_mbus_code(struct v4l2_subdev *subdev,
f7234138	117	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	118	struct v4l2_subdev_mbus_code_enum *code)
	119	{
	120	static const unsigned int codes[] = {
27ffaeb0 BB	121	MEDIA_BUS_FMT_ARGB8888_1X32,
27ffaeb0 BB	122	MEDIA_BUS_FMT_AYUV8_1X32,
26e0ca22	123	};
26e0ca22	124
6ad9ba9c LP	125	return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
6ad9ba9c LP	126	ARRAY_SIZE(codes));
26e0ca22 LP	127	}
	128
	129	static int uds_enum_frame_size(struct v4l2_subdev *subdev,
f7234138	130	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	131	struct v4l2_subdev_frame_size_enum *fse)
26e0ca22 LP	132	{
5778e749	133	struct vsp1_uds *uds = to_uds(subdev);
e790c3cb	134	struct v4l2_subdev_pad_config *config;
26e0ca22 LP	135	struct v4l2_mbus_framefmt *format;
26e0ca22 LP	136
e790c3cb LP	137	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fse->which);
	138	if (!config)
	139	return -EINVAL;
	140
	141	format = vsp1_entity_get_pad_format(&uds->entity, config,
	142	UDS_PAD_SINK);
26e0ca22 LP	143
	144	if (fse->index \|\| fse->code != format->code)
	145	return -EINVAL;
	146
	147	if (fse->pad == UDS_PAD_SINK) {
	148	fse->min_width = UDS_MIN_SIZE;
	149	fse->max_width = UDS_MAX_SIZE;
	150	fse->min_height = UDS_MIN_SIZE;
	151	fse->max_height = UDS_MAX_SIZE;
	152	} else {
	153	uds_output_limits(format->width, &fse->min_width,
	154	&fse->max_width);
	155	uds_output_limits(format->height, &fse->min_height,
	156	&fse->max_height);
	157	}
	158
	159	return 0;
	160	}
	161
1bd0a1bd	162	static void uds_try_format(struct vsp1_uds *uds,
e790c3cb LP	163	struct v4l2_subdev_pad_config *config,
e790c3cb LP	164	unsigned int pad, struct v4l2_mbus_framefmt *fmt)
26e0ca22 LP	165	{
	166	struct v4l2_mbus_framefmt *format;
	167	unsigned int minimum;
	168	unsigned int maximum;
	169
	170	switch (pad) {
	171	case UDS_PAD_SINK:
	172	/* Default to YUV if the requested format is not supported. */
27ffaeb0 BB	173	if (fmt->code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
	174	fmt->code != MEDIA_BUS_FMT_AYUV8_1X32)
	175	fmt->code = MEDIA_BUS_FMT_AYUV8_1X32;
26e0ca22 LP	176
	177	fmt->width = clamp(fmt->width, UDS_MIN_SIZE, UDS_MAX_SIZE);
	178	fmt->height = clamp(fmt->height, UDS_MIN_SIZE, UDS_MAX_SIZE);
	179	break;
	180
	181	case UDS_PAD_SOURCE:
	182	/* The UDS scales but can't perform format conversion. */
e790c3cb LP	183	format = vsp1_entity_get_pad_format(&uds->entity, config,
e790c3cb LP	184	UDS_PAD_SINK);
26e0ca22 LP	185	fmt->code = format->code;
	186
	187	uds_output_limits(format->width, &minimum, &maximum);
	188	fmt->width = clamp(fmt->width, minimum, maximum);
	189	uds_output_limits(format->height, &minimum, &maximum);
	190	fmt->height = clamp(fmt->height, minimum, maximum);
	191	break;
	192	}
	193
	194	fmt->field = V4L2_FIELD_NONE;
	195	fmt->colorspace = V4L2_COLORSPACE_SRGB;
	196	}
	197
1bd0a1bd LP	198	static int uds_set_format(struct v4l2_subdev *subdev,
1bd0a1bd LP	199	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	200	struct v4l2_subdev_format *fmt)
	201	{
	202	struct vsp1_uds *uds = to_uds(subdev);
e790c3cb	203	struct v4l2_subdev_pad_config *config;
26e0ca22 LP	204	struct v4l2_mbus_framefmt *format;
26e0ca22 LP	205
e790c3cb LP	206	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fmt->which);
	207	if (!config)
	208	return -EINVAL;
	209
	210	uds_try_format(uds, config, fmt->pad, &fmt->format);
26e0ca22	211
e790c3cb	212	format = vsp1_entity_get_pad_format(&uds->entity, config, fmt->pad);
26e0ca22 LP	213	*format = fmt->format;
	214
	215	if (fmt->pad == UDS_PAD_SINK) {
	216	/* Propagate the format to the source pad. */
e790c3cb LP	217	format = vsp1_entity_get_pad_format(&uds->entity, config,
e790c3cb LP	218	UDS_PAD_SOURCE);
26e0ca22 LP	219	*format = fmt->format;
26e0ca22 LP	220
e790c3cb	221	uds_try_format(uds, config, UDS_PAD_SOURCE, format);
26e0ca22 LP	222	}
26e0ca22 LP	223
26e0ca22 LP	224	return 0;
	225	}
	226
	227	/* -----------------------------------------------------------------------------
	228	* V4L2 Subdevice Operations
	229	*/
	230
eb9163d3	231	static const struct v4l2_subdev_pad_ops uds_pad_ops = {
0efdf0f5	232	.init_cfg = vsp1_entity_init_cfg,
26e0ca22 LP	233	.enum_mbus_code = uds_enum_mbus_code,
26e0ca22 LP	234	.enum_frame_size = uds_enum_frame_size,
3f557220	235	.get_fmt = vsp1_subdev_get_pad_format,
26e0ca22 LP	236	.set_fmt = uds_set_format,
	237	};
	238
eb9163d3	239	static const struct v4l2_subdev_ops uds_ops = {
26e0ca22 LP	240	.pad = &uds_pad_ops,
	241	};
	242
7b905f05 LP	243	/* -----------------------------------------------------------------------------
	244	* VSP1 Entity Operations
	245	*/
	246
83dd019d LP	247	static void uds_configure(struct vsp1_entity *entity,
83dd019d LP	248	struct vsp1_pipeline *pipe,
fc845e52	249	struct vsp1_dl_list *dl, bool full)
7b905f05 LP	250	{
	251	struct vsp1_uds *uds = to_uds(&entity->subdev);
	252	const struct v4l2_mbus_framefmt *output;
	253	const struct v4l2_mbus_framefmt *input;
	254	unsigned int hscale;
	255	unsigned int vscale;
	256	bool multitap;
	257
fc845e52 LP	258	if (!full)
	259	return;
	260
7b905f05 LP	261	input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
	262	UDS_PAD_SINK);
	263	output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
	264	UDS_PAD_SOURCE);
	265
	266	hscale = uds_compute_ratio(input->width, output->width);
	267	vscale = uds_compute_ratio(input->height, output->height);
	268
	269	dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale);
	270
	271	/* Multi-tap scaling can't be enabled along with alpha scaling when
	272	* scaling down with a factor lower than or equal to 1/2 in either
	273	* direction.
	274	*/
	275	if (uds->scale_alpha && (hscale >= 8192 \|\| vscale >= 8192))
	276	multitap = false;
	277	else
	278	multitap = true;
	279
5e8dbbf3	280	vsp1_uds_write(uds, dl, VI6_UDS_CTRL,
7b905f05 LP	281	(uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) \|
	282	(multitap ? VI6_UDS_CTRL_BC : 0));
	283
5e8dbbf3	284	vsp1_uds_write(uds, dl, VI6_UDS_PASS_BWIDTH,
7b905f05 LP	285	(uds_passband_width(hscale)
	286	<< VI6_UDS_PASS_BWIDTH_H_SHIFT) \|
	287	(uds_passband_width(vscale)
	288	<< VI6_UDS_PASS_BWIDTH_V_SHIFT));
	289
	290	/* Set the scaling ratios and the output size. */
5e8dbbf3	291	vsp1_uds_write(uds, dl, VI6_UDS_SCALE,
7b905f05 LP	292	(hscale << VI6_UDS_SCALE_HFRAC_SHIFT) \|
7b905f05 LP	293	(vscale << VI6_UDS_SCALE_VFRAC_SHIFT));
5e8dbbf3	294	vsp1_uds_write(uds, dl, VI6_UDS_CLIP_SIZE,
7b905f05 LP	295	(output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) \|
	296	(output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT));
	297	}
	298
	299	static const struct vsp1_entity_operations uds_entity_ops = {
	300	.configure = uds_configure,
	301	};
	302
26e0ca22 LP	303	/* -----------------------------------------------------------------------------
	304	* Initialization and Cleanup
	305	*/
	306
	307	struct vsp1_uds vsp1_uds_create(struct vsp1_device vsp1, unsigned int index)
	308	{
26e0ca22	309	struct vsp1_uds *uds;
823329df	310	char name[6];
26e0ca22 LP	311	int ret;
	312
	313	uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL);
	314	if (uds == NULL)
	315	return ERR_PTR(-ENOMEM);
	316
7b905f05	317	uds->entity.ops = &uds_entity_ops;
26e0ca22 LP	318	uds->entity.type = VSP1_ENTITY_UDS;
26e0ca22 LP	319	uds->entity.index = index;
26e0ca22	320
823329df	321	sprintf(name, "uds.%u", index);
6a8e07b2 LP	322	ret = vsp1_entity_init(vsp1, &uds->entity, name, 2, &uds_ops,
6a8e07b2 LP	323	MEDIA_ENT_F_PROC_VIDEO_SCALER);
26e0ca22 LP	324	if (ret < 0)
	325	return ERR_PTR(ret);
	326
26e0ca22 LP	327	return uds;
26e0ca22 LP	328	}