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Commit db6cbc8c authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mauro Carvalho Chehab
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V4L/DVB (11327): ov772x: add edge contrl support 



Signed-off-by: default avatarKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent e951cbf2

drivers/media/video/ov772x.c

+59 −4
Original line number Diff line number Diff line
@@ -169,11 +169,11 @@ 
#define GAM15       0x8C /* Gamma Curve 15th segment input end point */

#define SLOP        0x8D /* Gamma curve highest segment slope */

#define DNSTH       0x8E /* De-noise threshold */

#define EDGE0       0x8F /* Edge enhancement control 0 */

#define EDGE1       0x90 /* Edge enhancement control 1 */

#define EDGE_STRNGT 0x8F /* Edge strength  control when manual mode */

#define EDGE_TRSHLD 0x90 /* Edge threshold control when manual mode */

#define DNSOFF      0x91 /* Auto De-noise threshold control */

#define EDGE2       0x92 /* Edge enhancement strength low  point control */

#define EDGE3       0x93 /* Edge enhancement strength high point control */

#define EDGE_UPPER  0x92 /* Edge strength upper limit when Auto mode */

#define EDGE_LOWER  0x93 /* Edge strength lower limit when Auto mode */

#define MTX1        0x94 /* Matrix coefficient 1 */

#define MTX2        0x95 /* Matrix coefficient 2 */

#define MTX3        0x96 /* Matrix coefficient 3 */
@@ -358,6 +358,14 @@ 
#define VOSZ_VGA        0xF0

#define VOSZ_QVGA       0x78



/* DSPAUTO (DSP Auto Function ON/OFF Control) */

#define AWB_ACTRL       0x80 /* AWB auto threshold control */

#define DENOISE_ACTRL   0x40 /* De-noise auto threshold control */

#define EDGE_ACTRL      0x20 /* Edge enhancement auto strength control */

#define UV_ACTRL        0x10 /* UV adjust auto slope control */

#define SCAL0_ACTRL     0x08 /* Auto scaling factor control */

#define SCAL1_2_ACTRL   0x04 /* Auto scaling factor control */



/*

 * ID

 */
@@ -815,6 +823,53 @@ static int ov772x_set_params(struct ov772x_priv *priv, u32 width, u32 height, 
	 */

	ov772x_reset(priv->client);



	/*

	 * Edge Ctrl

	 */

	if (priv->info->edgectrl.strength & OV772X_MANUAL_EDGE_CTRL) {



		/*

		 * Manual Edge Control Mode

		 *

		 * Edge auto strength bit is set by default.

		 * Remove it when manual mode.

		 */



		ret = ov772x_mask_set(priv->client, DSPAUTO, EDGE_ACTRL, 0x00);

		if (ret < 0)

			goto ov772x_set_fmt_error;



		ret = ov772x_mask_set(priv->client,

				      EDGE_TRSHLD, EDGE_THRESHOLD_MASK,

				      priv->info->edgectrl.threshold);

		if (ret < 0)

			goto ov772x_set_fmt_error;



		ret = ov772x_mask_set(priv->client,

				      EDGE_STRNGT, EDGE_STRENGTH_MASK,

				      priv->info->edgectrl.strength);

		if (ret < 0)

			goto ov772x_set_fmt_error;



	} else if (priv->info->edgectrl.upper > priv->info->edgectrl.lower) {

		/*

		 * Auto Edge Control Mode

		 *

		 * set upper and lower limit

		 */

		ret = ov772x_mask_set(priv->client,

				      EDGE_UPPER, EDGE_UPPER_MASK,

				      priv->info->edgectrl.upper);

		if (ret < 0)

			goto ov772x_set_fmt_error;



		ret = ov772x_mask_set(priv->client,

				      EDGE_LOWER, EDGE_LOWER_MASK,

				      priv->info->edgectrl.lower);

		if (ret < 0)

			goto ov772x_set_fmt_error;

	}



	/*

	 * set size format

	 */

include/media/ov772x.h

+35 −0
Original line number Diff line number Diff line
@@ -17,10 +17,45 @@ 
#define OV772X_FLAG_VFLIP     0x00000001 /* Vertical flip image */

#define OV772X_FLAG_HFLIP     0x00000002 /* Horizontal flip image */



/*

 * for Edge ctrl

 *

 * strength also control Auto or Manual Edge Control Mode

 * see also OV772X_MANUAL_EDGE_CTRL

 */

struct ov772x_edge_ctrl {

	unsigned char strength;

	unsigned char threshold;

	unsigned char upper;

	unsigned char lower;

};



#define OV772X_MANUAL_EDGE_CTRL	0x80 /* un-used bit of strength */

#define EDGE_STRENGTH_MASK	0x1F

#define EDGE_THRESHOLD_MASK	0x0F

#define EDGE_UPPER_MASK		0xFF

#define EDGE_LOWER_MASK		0xFF



#define OV772X_AUTO_EDGECTRL(u, l)	\

{					\

	.upper = (u & EDGE_UPPER_MASK),	\

	.lower = (l & EDGE_LOWER_MASK),	\

}



#define OV772X_MANUAL_EDGECTRL(s, t)					\

{									\

	.strength  = (s & EDGE_STRENGTH_MASK) | OV772X_MANUAL_EDGE_CTRL,\

	.threshold = (t & EDGE_THRESHOLD_MASK),				\

}



/*

 * ov772x camera info

 */

struct ov772x_camera_info {

	unsigned long          buswidth;

	unsigned long          flags;

	struct soc_camera_link link;

	struct ov772x_edge_ctrl edgectrl;

};



#endif /* __OV772X_H__ */