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V4L/DVB (11327): ov772x: add edge contrl support 

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Kuninori Morimoto 2009-03-31 03:44:22 -03:00 committed by Mauro Carvalho Chehab
parent e951cbf20c
commit db6cbc8cf2
2 changed files with 94 additions and 4 deletions
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63
drivers/media/video/ov772x.c
View File

@ -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
*/

35
include/media/ov772x.h
View File

@ -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__ */