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media: i2c: imx290: Add support for test pattern generation 

Add support for generating following test patterns by IMX290:

* Sequence Pattern 1
* Horizontal Color-bar Chart
* Vertical Color-bar Chart
* Sequence Pattern 2
* Gradation Pattern 1
* Gradation Pattern 2
* 000/555h Toggle Pattern

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.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:
Manivannan Sadhasivam 2020-06-12 15:53:51 +02:00 committed by Mauro Carvalho Chehab
parent 98e0500ead
commit a58df1f9e4
1 changed files with 40 additions and 1 deletions
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41
drivers/media/i2c/imx290.c
View File

@ -26,12 +26,19 @@
#define IMX290_REGHOLD 0x3001
#define IMX290_XMSTA 0x3002
#define IMX290_FR_FDG_SEL 0x3009
#define IMX290_BLKLEVEL_LOW 0x300a
#define IMX290_BLKLEVEL_HIGH 0x300b
#define IMX290_GAIN 0x3014
#define IMX290_HMAX_LOW 0x301c
#define IMX290_HMAX_HIGH 0x301d
#define IMX290_PGCTRL 0x308c
#define IMX290_PHY_LANE_NUM 0x3407
#define IMX290_CSI_LANE_MODE 0x3443
#define IMX290_PGCTRL_REGEN BIT(0)
#define IMX290_PGCTRL_THRU BIT(1)
#define IMX290_PGCTRL_MODE(n) ((n) << 4)
static const char * const imx290_supply_name[] = {
"vdda",
"vddd",
@ -91,6 +98,17 @@ static const struct regmap_config imx290_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};
static const char * const imx290_test_pattern_menu[] = {
"Disabled",
"Sequence Pattern 1",
"Horizontal Color-bar Chart",
"Vertical Color-bar Chart",
"Sequence Pattern 2",
"Gradation Pattern 1",
"Gradation Pattern 2",
"000/555h Toggle Pattern",
};
static const struct imx290_regval imx290_global_init_settings[] = {
{ 0x3007, 0x00 },
{ 0x3018, 0x65 },
@ -448,6 +466,22 @@ static int imx290_set_ctrl(struct v4l2_ctrl *ctrl)
case V4L2_CID_GAIN:
ret = imx290_set_gain(imx290, ctrl->val);
break;
case V4L2_CID_TEST_PATTERN:
if (ctrl->val) {
imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
imx290_write_reg(imx290, IMX290_BLKLEVEL_HIGH, 0x00);
msleep(10);
imx290_write_reg(imx290, IMX290_PGCTRL,
(u8)(IMX290_PGCTRL_REGEN |
IMX290_PGCTRL_THRU |
IMX290_PGCTRL_MODE(ctrl->val)));
} else {
imx290_write_reg(imx290, IMX290_PGCTRL, 0x00);
msleep(10);
imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x3c);
imx290_write_reg(imx290, IMX290_BLKLEVEL_HIGH, 0x00);
}
break;
default:
ret = -EINVAL;
break;
@ -959,7 +993,7 @@ static int imx290_probe(struct i2c_client *client)
*/
imx290_entity_init_cfg(&imx290->sd, NULL);
v4l2_ctrl_handler_init(&imx290->ctrls, 3);
v4l2_ctrl_handler_init(&imx290->ctrls, 4);
v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_GAIN, 0, 72, 1, 0);
@ -977,6 +1011,11 @@ static int imx290_probe(struct i2c_client *client)
1, INT_MAX, 1,
imx290_calc_pixel_rate(imx290));
v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx290_test_pattern_menu) - 1,
0, 0, imx290_test_pattern_menu);
imx290->sd.ctrl_handler = &imx290->ctrls;
if (imx290->ctrls.error) {