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media: i2c: ov772x: Add test pattern control

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Add support for test pattern control supported by the sensor.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Lad Prabhakar 2020-10-03 00:23:23 +02:00 committed by Mauro Carvalho Chehab
parent efcb7dda9b
commit f5c24ca7bf
1 changed files with 16 additions and 1 deletions
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17
drivers/media/i2c/ov772x.c
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@ -227,7 +227,7 @@
/* COM3 */
#define SWAP_MASK (SWAP_RGB | SWAP_YUV | SWAP_ML)
#define IMG_MASK (VFLIP_IMG | HFLIP_IMG)
#define IMG_MASK (VFLIP_IMG | HFLIP_IMG | SCOLOR_TEST)
#define VFLIP_IMG 0x80 /* Vertical flip image ON/OFF selection */
#define HFLIP_IMG 0x40 /* Horizontal mirror image ON/OFF selection */
@ -425,6 +425,7 @@ struct ov772x_priv {
const struct ov772x_win_size *win;
struct v4l2_ctrl *vflip_ctrl;
struct v4l2_ctrl *hflip_ctrl;
unsigned int test_pattern;
/* band_filter = COM8[5] ? 256 - BDBASE : 0 */
struct v4l2_ctrl *band_filter_ctrl;
unsigned int fps;
@ -540,6 +541,11 @@ static const struct ov772x_win_size ov772x_win_sizes[] = {
},
};
static const char * const ov772x_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bar Type 1",
};
/*
* frame rate settings lists
*/
@ -810,6 +816,9 @@ static int ov772x_s_ctrl(struct v4l2_ctrl *ctrl)
}
return ret;
case V4L2_CID_TEST_PATTERN:
priv->test_pattern = ctrl->val;
return 0;
}
return -EINVAL;
@ -1108,6 +1117,8 @@ static int ov772x_set_params(struct ov772x_priv *priv,
val ^= VFLIP_IMG;
if (priv->hflip_ctrl->val)
val ^= HFLIP_IMG;
if (priv->test_pattern)
val |= SCOLOR_TEST;
ret = regmap_update_bits(priv->regmap, COM3, SWAP_MASK | IMG_MASK, val);
if (ret < 0)
@ -1444,6 +1455,10 @@ static int ov772x_probe(struct i2c_client *client)
priv->band_filter_ctrl = v4l2_ctrl_new_std(&priv->hdl, &ov772x_ctrl_ops,
V4L2_CID_BAND_STOP_FILTER,
0, 256, 1, 0);
v4l2_ctrl_new_std_menu_items(&priv->hdl, &ov772x_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(ov772x_test_pattern_menu) - 1,
0, 0, ov772x_test_pattern_menu);
priv->subdev.ctrl_handler = &priv->hdl;
if (priv->hdl.error) {
ret = priv->hdl.error;