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authorManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2019-11-26 20:08:56 +0530
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2019-12-15 20:35:37 +0530
commit037691997e68f41e9ec3307e91b3f443355e1aa1 (patch)
treefdf8e5522e1419bcd78fe6c332b27d6b9a819a65
parent7f2388435dac9156c429180f6a46c446e54eb950 (diff)
download96b-common-037691997e68f41e9ec3307e91b3f443355e1aa1.tar.gz
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>
-rw-r--r--drivers/media/i2c/imx290.c41
1 files changed, 40 insertions, 1 deletions
diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c
index 532ad488b801..96eea0aafd3e 100644
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -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)
+
/* HMAX fields */
#define IMX290_HMAX_2_1920 0x1130
#define IMX290_HMAX_4_1920 0x0898
@@ -99,6 +106,17 @@ 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 },
@@ -394,6 +412,22 @@ 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;
@@ -881,7 +915,7 @@ static int imx290_probe(struct i2c_client *client)
mutex_init(&imx290->lock);
- 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);
@@ -899,6 +933,11 @@ static int imx290_probe(struct i2c_client *client)
INT_MAX, 1,
imx290_modes[0].pixel_rate);
+ 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) {