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Commit eb8305b1 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] tvp7002: add support for the new dv timings API 



Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent f00dc304

drivers/media/video/tvp7002.c

+89 −13
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <linux/slab.h>

#include <linux/videodev2.h>

#include <linux/module.h>

#include <linux/v4l2-dv-timings.h>

#include <media/tvp7002.h>

#include <media/v4l2-device.h>

#include <media/v4l2-chip-ident.h>
@@ -328,6 +329,7 @@ static const struct i2c_reg_value tvp7002_parms_720P50[] = { 
/* Preset definition for handling device operation */

struct tvp7002_preset_definition {

	u32 preset;

	struct v4l2_dv_timings timings;

	const struct i2c_reg_value *p_settings;

	enum v4l2_colorspace color_space;

	enum v4l2_field scanmode;
@@ -341,6 +343,7 @@ struct tvp7002_preset_definition { 
static const struct tvp7002_preset_definition tvp7002_presets[] = {

	{

		V4L2_DV_720P60,

		V4L2_DV_BT_CEA_1280X720P60,

		tvp7002_parms_720P60,

		V4L2_COLORSPACE_REC709,

		V4L2_FIELD_NONE,
@@ -351,6 +354,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_1080I60,

		V4L2_DV_BT_CEA_1920X1080I60,

		tvp7002_parms_1080I60,

		V4L2_COLORSPACE_REC709,

		V4L2_FIELD_INTERLACED,
@@ -361,6 +365,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_1080I50,

		V4L2_DV_BT_CEA_1920X1080I50,

		tvp7002_parms_1080I50,

		V4L2_COLORSPACE_REC709,

		V4L2_FIELD_INTERLACED,
@@ -371,6 +376,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_720P50,

		V4L2_DV_BT_CEA_1280X720P50,

		tvp7002_parms_720P50,

		V4L2_COLORSPACE_REC709,

		V4L2_FIELD_NONE,
@@ -381,6 +387,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_1080P60,

		V4L2_DV_BT_CEA_1920X1080P60,

		tvp7002_parms_1080P60,

		V4L2_COLORSPACE_REC709,

		V4L2_FIELD_NONE,
@@ -391,6 +398,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_480P59_94,

		V4L2_DV_BT_CEA_720X480P59_94,

		tvp7002_parms_480P,

		V4L2_COLORSPACE_SMPTE170M,

		V4L2_FIELD_NONE,
@@ -401,6 +409,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = { 
	},

	{

		V4L2_DV_576P50,

		V4L2_DV_BT_CEA_720X576P50,

		tvp7002_parms_576P,

		V4L2_COLORSPACE_SMPTE170M,

		V4L2_FIELD_NONE,
@@ -605,6 +614,35 @@ static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, 
	return -EINVAL;

}



static int tvp7002_s_dv_timings(struct v4l2_subdev *sd,

					struct v4l2_dv_timings *dv_timings)

{

	struct tvp7002 *device = to_tvp7002(sd);

	const struct v4l2_bt_timings *bt = &dv_timings->bt;

	int i;



	if (dv_timings->type != V4L2_DV_BT_656_1120)

		return -EINVAL;

	for (i = 0; i < NUM_PRESETS; i++) {

		const struct v4l2_bt_timings *t = &tvp7002_presets[i].timings.bt;



		if (!memcmp(bt, t, &bt->standards - &bt->width)) {

			device->current_preset = &tvp7002_presets[i];

			return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);

		}

	}

	return -EINVAL;

}



static int tvp7002_g_dv_timings(struct v4l2_subdev *sd,

					struct v4l2_dv_timings *dv_timings)

{

	struct tvp7002 *device = to_tvp7002(sd);



	*dv_timings = device->current_preset->timings;

	return 0;

}



/*

 * tvp7002_s_ctrl() - Set a control

 * @ctrl: ptr to v4l2_ctrl struct
@@ -666,8 +704,7 @@ static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f 
 * Returns the current DV preset by TVP7002. If no active input is

 * detected, returns -EINVAL

 */

static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,

						struct v4l2_dv_preset *qpreset)

static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index)

{

	const struct tvp7002_preset_definition *presets = tvp7002_presets;

	u8 progressive;
@@ -678,10 +715,9 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, 
	u8 lpf_msb;

	u8 cpl_lsb;

	u8 cpl_msb;

	int index;



	/* Return invalid preset if no active input is detected */

	qpreset->preset = V4L2_DV_INVALID;

	/* Return invalid index if no active input is detected */

	*index = NUM_PRESETS;



	/* Read standards from device registers */

	tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
@@ -702,7 +738,7 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, 
	progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;



	/* Do checking of video modes */

	for (index = 0; index < NUM_PRESETS; index++, presets++)

	for (*index = 0; *index < NUM_PRESETS; (*index)++, presets++)

		if (lpfr == presets->lines_per_frame &&

			progressive == presets->progressive) {

			if (presets->cpl_min == 0xffff)
@@ -711,17 +747,42 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, 
				break;

		}



	if (index == NUM_PRESETS) {

	if (*index == NUM_PRESETS) {

		v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",

								lpfr, cpln);

		return -ENOLINK;

	}



	/* Update lines per frame and clocks per line info */

	v4l2_dbg(1, debug, sd, "detected preset: %d\n", *index);

	return 0;

}



	/* Set values in found preset */

	qpreset->preset = presets->preset;

static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,

					struct v4l2_dv_preset *qpreset)

{

	int index;

	int err = tvp7002_query_dv(sd, &index);



	/* Update lines per frame and clocks per line info */

	v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset);

	if (err || index == NUM_PRESETS) {

		qpreset->preset = V4L2_DV_INVALID;

		if (err == -ENOLINK)

			err = 0;

		return err;

	}

	qpreset->preset = tvp7002_presets[index].preset;

	return 0;

}



static int tvp7002_query_dv_timings(struct v4l2_subdev *sd,

					struct v4l2_dv_timings *timings)

{

	int index;

	int err = tvp7002_query_dv(sd, &index);



	if (err)

		return err;

	*timings = tvp7002_presets[index].timings;

	return 0;

}
@@ -891,6 +952,17 @@ static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd, 
	return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);

}



static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd,

		struct v4l2_enum_dv_timings *timings)

{

	/* Check requested format index is within range */

	if (timings->index >= NUM_PRESETS)

		return -EINVAL;



	timings->timings = tvp7002_presets[timings->index].timings;

	return 0;

}



static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {

	.s_ctrl = tvp7002_s_ctrl,

};
@@ -917,6 +989,10 @@ static const struct v4l2_subdev_video_ops tvp7002_video_ops = { 
	.enum_dv_presets = tvp7002_enum_dv_presets,

	.s_dv_preset = tvp7002_s_dv_preset,

	.query_dv_preset = tvp7002_query_dv_preset,

	.g_dv_timings = tvp7002_g_dv_timings,

	.s_dv_timings = tvp7002_s_dv_timings,

	.enum_dv_timings = tvp7002_enum_dv_timings,

	.query_dv_timings = tvp7002_query_dv_timings,

	.s_stream = tvp7002_s_stream,

	.g_mbus_fmt = tvp7002_mbus_fmt,

	.try_mbus_fmt = tvp7002_mbus_fmt,