lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20241021-imx214-v2-13-fbd23e99541e@apitzsch.eu>
Date: Mon, 21 Oct 2024 00:13:33 +0200
From: André Apitzsch via B4 Relay <devnull+git.apitzsch.eu@...nel.org>
To: Ricardo Ribalda <ribalda@...nel.org>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>
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>, 
 André Apitzsch <git@...tzsch.eu>, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 13/13] 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 46f3e27371d8075517a75891e6a742912c2a3604..2aca3d88a0a7fa9b870090f1083b31b0c3c84652 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -184,6 +184,23 @@
 
 #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
@@ -216,6 +233,22 @@ 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;
@@ -818,6 +851,26 @@ 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;
 	}
@@ -845,14 +898,14 @@ 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;
 
@@ -909,6 +962,26 @@ 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,

-- 
2.47.0



Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ