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media: i2c: imx334: add support for test pattern generator

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Add support for the imx334's test pattern generator.
By default the test pattern generator is disabled, so add support for
enabling and disabling horizontal and vertical colour bars.

Signed-off-by: Shravan Chippa <shravan.chippa@microchip.com>
Acked-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Shravan Chippa 2023-08-04 20:45:41 +05:30 committed by Hans Verkuil
parent 2d13621c6b
commit a6403dddae
1 changed files with 56 additions and 1 deletions
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57
drivers/media/i2c/imx334.c
View file

@ -56,6 +56,24 @@
#define IMX334_REG_MIN 0x00
#define IMX334_REG_MAX 0xfffff
/* Test Pattern Control */
#define IMX334_REG_TP 0x329e
#define IMX334_TP_COLOR_HBARS 0xA
#define IMX334_TP_COLOR_VBARS 0xB
#define IMX334_TPG_EN_DOUT 0x329c
#define IMX334_TP_ENABLE 0x1
#define IMX334_TP_DISABLE 0x0
#define IMX334_TPG_COLORW 0x32a0
#define IMX334_TPG_COLORW_120P 0x13
#define IMX334_TP_CLK_EN 0x3148
#define IMX334_TP_CLK_EN_VAL 0x10
#define IMX334_TP_CLK_DIS_VAL 0x0
#define IMX334_DIG_CLP_MODE 0x3280
/**
* struct imx334_reg - imx334 sensor register
* @address: Register address
@ -430,6 +448,18 @@ static const struct imx334_reg mode_3840x2160_regs[] = {
{0x3a29, 0x00},
};
static const char * const imx334_test_pattern_menu[] = {
"Disabled",
"Vertical Color Bars",
"Horizontal Color Bars",
};
static const int imx334_test_pattern_val[] = {
IMX334_TP_DISABLE,
IMX334_TP_COLOR_HBARS,
IMX334_TP_COLOR_VBARS,
};
static const struct imx334_reg raw10_framefmt_regs[] = {
{0x3050, 0x00},
{0x319d, 0x00},
@ -716,6 +746,26 @@ static int imx334_set_ctrl(struct v4l2_ctrl *ctrl)
case V4L2_CID_HBLANK:
ret = 0;
break;
case V4L2_CID_TEST_PATTERN:
if (ctrl->val) {
imx334_write_reg(imx334, IMX334_TP_CLK_EN, 1,
IMX334_TP_CLK_EN_VAL);
imx334_write_reg(imx334, IMX334_DIG_CLP_MODE, 1, 0x0);
imx334_write_reg(imx334, IMX334_TPG_COLORW, 1,
IMX334_TPG_COLORW_120P);
imx334_write_reg(imx334, IMX334_REG_TP, 1,
imx334_test_pattern_val[ctrl->val]);
imx334_write_reg(imx334, IMX334_TPG_EN_DOUT, 1,
IMX334_TP_ENABLE);
} else {
imx334_write_reg(imx334, IMX334_DIG_CLP_MODE, 1, 0x1);
imx334_write_reg(imx334, IMX334_TP_CLK_EN, 1,
IMX334_TP_CLK_DIS_VAL);
imx334_write_reg(imx334, IMX334_TPG_EN_DOUT, 1,
IMX334_TP_DISABLE);
}
ret = 0;
break;
default:
dev_err(imx334->dev, "Invalid control %d", ctrl->id);
ret = -EINVAL;
@ -1222,7 +1272,7 @@ static int imx334_init_controls(struct imx334 *imx334)
u32 lpfr;
int ret;
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 6);
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
if (ret)
return ret;
@ -1282,6 +1332,11 @@ static int imx334_init_controls(struct imx334 *imx334)
if (imx334->hblank_ctrl)
imx334->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx334_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx334_test_pattern_menu) - 1,
0, 0, imx334_test_pattern_menu);
if (ctrl_hdlr->error) {
dev_err(imx334->dev, "control init failed: %d",
ctrl_hdlr->error);