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Message-Id: <20241217-imx214-v5-11-387f52adef4d@apitzsch.eu>
Date: Tue, 17 Dec 2024 22:39:23 +0100
From: André Apitzsch via B4 Relay <devnull+git.apitzsch.eu@...nel.org>
To: Ricardo Ribalda <ribalda@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
Dave Stevenson <dave.stevenson@...pberrypi.com>,
Vincent Knecht <vincent.knecht@...loo.org>,
André Apitzsch <git@...tzsch.eu>,
Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v5 11/13] media: i2c: imx214: Add test pattern control
From: André Apitzsch <git@...tzsch.eu>
This adds V4L2_CID_TEST_PATTERN control support.
Acked-by: Ricardo Ribalda <ribalda@...omium.org>
Signed-off-by: André Apitzsch <git@...tzsch.eu>
---
drivers/media/i2c/imx214.c | 77 ++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 75 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 6b9584e330ddc17823cbb024e39f9c5fd54442bf..96d05acfeb66480770bb6291027dd023fdccb649 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -177,6 +177,23 @@
#define IMX214_REG_ATR_FAST_MOVE CCI_REG8(0x9300)
+/* Test Pattern Control */
+#define IMX214_REG_TEST_PATTERN CCI_REG16(0x0600)
+#define IMX214_TEST_PATTERN_DISABLE 0
+#define IMX214_TEST_PATTERN_SOLID_COLOR 1
+#define IMX214_TEST_PATTERN_COLOR_BARS 2
+#define IMX214_TEST_PATTERN_GREY_COLOR 3
+#define IMX214_TEST_PATTERN_PN9 4
+
+/* Test pattern colour components */
+#define IMX214_REG_TESTP_RED CCI_REG16(0x0602)
+#define IMX214_REG_TESTP_GREENR CCI_REG16(0x0604)
+#define IMX214_REG_TESTP_BLUE CCI_REG16(0x0606)
+#define IMX214_REG_TESTP_GREENB CCI_REG16(0x0608)
+#define IMX214_TESTP_COLOUR_MIN 0
+#define IMX214_TESTP_COLOUR_MAX 0x03ff
+#define IMX214_TESTP_COLOUR_STEP 1
+
/* IMX214 native and active pixel array size */
#define IMX214_NATIVE_WIDTH 4224U
#define IMX214_NATIVE_HEIGHT 3136U
@@ -209,6 +226,22 @@ static const u32 imx214_mbus_formats[] = {
MEDIA_BUS_FMT_SBGGR10_1X10,
};
+static const char * const imx214_test_pattern_menu[] = {
+ "Disabled",
+ "Color Bars",
+ "Solid Color",
+ "Grey Color Bars",
+ "PN9"
+};
+
+static const int imx214_test_pattern_val[] = {
+ IMX214_TEST_PATTERN_DISABLE,
+ IMX214_TEST_PATTERN_COLOR_BARS,
+ IMX214_TEST_PATTERN_SOLID_COLOR,
+ IMX214_TEST_PATTERN_GREY_COLOR,
+ IMX214_TEST_PATTERN_PN9,
+};
+
struct imx214 {
struct device *dev;
struct clk *xclk;
@@ -807,6 +840,26 @@ static int imx214_set_ctrl(struct v4l2_ctrl *ctrl)
cci_write(imx214->regmap, IMX214_REG_FRM_LENGTH_LINES,
format->height + ctrl->val, &ret);
break;
+ case V4L2_CID_TEST_PATTERN:
+ cci_write(imx214->regmap, IMX214_REG_TEST_PATTERN,
+ imx214_test_pattern_val[ctrl->val], &ret);
+ break;
+ case V4L2_CID_TEST_PATTERN_RED:
+ cci_write(imx214->regmap, IMX214_REG_TESTP_RED,
+ ctrl->val, &ret);
+ break;
+ case V4L2_CID_TEST_PATTERN_GREENR:
+ cci_write(imx214->regmap, IMX214_REG_TESTP_GREENR,
+ ctrl->val, &ret);
+ break;
+ case V4L2_CID_TEST_PATTERN_BLUE:
+ cci_write(imx214->regmap, IMX214_REG_TESTP_BLUE,
+ ctrl->val, &ret);
+ break;
+ case V4L2_CID_TEST_PATTERN_GREENB:
+ cci_write(imx214->regmap, IMX214_REG_TESTP_GREENB,
+ ctrl->val, &ret);
+ break;
default:
ret = -EINVAL;
}
@@ -834,14 +887,14 @@ static int imx214_ctrls_init(struct imx214 *imx214)
struct v4l2_ctrl_handler *ctrl_hdlr;
int exposure_max, exposure_def;
int hblank;
- int ret;
+ int i, ret;
ret = v4l2_fwnode_device_parse(imx214->dev, &props);
if (ret < 0)
return ret;
ctrl_hdlr = &imx214->ctrls;
- ret = v4l2_ctrl_handler_init(&imx214->ctrls, 12);
+ ret = v4l2_ctrl_handler_init(&imx214->ctrls, 13);
if (ret)
return ret;
@@ -910,6 +963,26 @@ static int imx214_ctrls_init(struct imx214 *imx214)
v4l2_ctrl_cluster(2, &imx214->hflip);
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx214_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(imx214_test_pattern_menu) - 1,
+ 0, 0, imx214_test_pattern_menu);
+ for (i = 0; i < 4; i++) {
+ /*
+ * The assumption is that
+ * V4L2_CID_TEST_PATTERN_GREENR == V4L2_CID_TEST_PATTERN_RED + 1
+ * V4L2_CID_TEST_PATTERN_BLUE == V4L2_CID_TEST_PATTERN_RED + 2
+ * V4L2_CID_TEST_PATTERN_GREENB == V4L2_CID_TEST_PATTERN_RED + 3
+ */
+ v4l2_ctrl_new_std(ctrl_hdlr, &imx214_ctrl_ops,
+ V4L2_CID_TEST_PATTERN_RED + i,
+ IMX214_TESTP_COLOUR_MIN,
+ IMX214_TESTP_COLOUR_MAX,
+ IMX214_TESTP_COLOUR_STEP,
+ IMX214_TESTP_COLOUR_MAX);
+ /* The "Solid color" pattern is white by default */
+ }
+
imx214->unit_size = v4l2_ctrl_new_std_compound(ctrl_hdlr,
NULL,
V4L2_CID_UNIT_CELL_SIZE,
--
2.47.1
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