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media: imx335: Add support for test pattern generator

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Add support for the sensor's test pattern generator.

Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.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:
Matthias Fend 2024-02-20 14:58:21 +05:30 committed by Hans Verkuil
parent 2d5aea517c
commit 37e83782f9
1 changed files with 101 additions and 1 deletions
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102
drivers/media/i2c/imx335.c
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@ -45,6 +45,21 @@
/* Group hold register */
#define IMX335_REG_HOLD 0x3001
/* Test pattern generator */
#define IMX335_REG_TPG 0x329e
#define IMX335_TPG_ALL_000 0
#define IMX335_TPG_ALL_FFF 1
#define IMX335_TPG_ALL_555 2
#define IMX335_TPG_ALL_AAA 3
#define IMX335_TPG_TOG_555_AAA 4
#define IMX335_TPG_TOG_AAA_555 5
#define IMX335_TPG_TOG_000_555 6
#define IMX335_TPG_TOG_555_000 7
#define IMX335_TPG_TOG_000_FFF 8
#define IMX335_TPG_TOG_FFF_000 9
#define IMX335_TPG_H_COLOR_BARS 10
#define IMX335_TPG_V_COLOR_BARS 11
/* Input clock rate */
#define IMX335_INCLK_RATE 24000000
@ -162,6 +177,38 @@ struct imx335 {
u32 cur_mbus_code;
};
static const char * const imx335_tpg_menu[] = {
"Disabled",
"All 000h",
"All FFFh",
"All 555h",
"All AAAh",
"Toggle 555/AAAh",
"Toggle AAA/555h",
"Toggle 000/555h",
"Toggle 555/000h",
"Toggle 000/FFFh",
"Toggle FFF/000h",
"Horizontal color bars",
"Vertical color bars",
};
static const int imx335_tpg_val[] = {
IMX335_TPG_ALL_000,
IMX335_TPG_ALL_000,
IMX335_TPG_ALL_FFF,
IMX335_TPG_ALL_555,
IMX335_TPG_ALL_AAA,
IMX335_TPG_TOG_555_AAA,
IMX335_TPG_TOG_AAA_555,
IMX335_TPG_TOG_000_555,
IMX335_TPG_TOG_555_000,
IMX335_TPG_TOG_000_FFF,
IMX335_TPG_TOG_FFF_000,
IMX335_TPG_H_COLOR_BARS,
IMX335_TPG_V_COLOR_BARS,
};
/* Sensor mode registers */
static const struct imx335_reg mode_2592x1940_regs[] = {
{0x3000, 0x01},
@ -507,6 +554,49 @@ static int imx335_update_exp_gain(struct imx335 *imx335, u32 exposure, u32 gain)
return ret;
}
static int imx335_update_test_pattern(struct imx335 *imx335, u32 pattern_index)
{
int ret;
if (pattern_index >= ARRAY_SIZE(imx335_tpg_val))
return -EINVAL;
if (pattern_index) {
const struct imx335_reg tpg_enable_regs[] = {
{ 0x3148, 0x10 },
{ 0x3280, 0x00 },
{ 0x329c, 0x01 },
{ 0x32a0, 0x11 },
{ 0x3302, 0x00 },
{ 0x3303, 0x00 },
{ 0x336c, 0x00 },
};
ret = imx335_write_reg(imx335, IMX335_REG_TPG, 1,
imx335_tpg_val[pattern_index]);
if (ret)
return ret;
ret = imx335_write_regs(imx335, tpg_enable_regs,
ARRAY_SIZE(tpg_enable_regs));
} else {
const struct imx335_reg tpg_disable_regs[] = {
{ 0x3148, 0x00 },
{ 0x3280, 0x01 },
{ 0x329c, 0x00 },
{ 0x32a0, 0x10 },
{ 0x3302, 0x32 },
{ 0x3303, 0x00 },
{ 0x336c, 0x01 },
};
ret = imx335_write_regs(imx335, tpg_disable_regs,
ARRAY_SIZE(tpg_disable_regs));
}
return ret;
}
/**
* imx335_set_ctrl() - Set subdevice control
* @ctrl: pointer to v4l2_ctrl structure
@ -560,6 +650,10 @@ static int imx335_set_ctrl(struct v4l2_ctrl *ctrl)
ret = imx335_update_exp_gain(imx335, exposure, analog_gain);
break;
case V4L2_CID_TEST_PATTERN:
ret = imx335_update_test_pattern(imx335, ctrl->val);
break;
default:
dev_err(imx335->dev, "Invalid control %d\n", ctrl->id);
@ -1117,7 +1211,7 @@ static int imx335_init_controls(struct imx335 *imx335)
u32 lpfr;
int ret;
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 6);
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
if (ret)
return ret;
@ -1151,6 +1245,12 @@ static int imx335_init_controls(struct imx335 *imx335)
mode->vblank_max,
1, mode->vblank);
v4l2_ctrl_new_std_menu_items(ctrl_hdlr,
&imx335_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx335_tpg_menu) - 1,
0, 0, imx335_tpg_menu);
/* Read only controls */
imx335->pclk_ctrl = v4l2_ctrl_new_std(ctrl_hdlr,
&imx335_ctrl_ops,