From: Lad, Prabhakar <prabhakar.lad@ti.com>
Date: Mon, 1 Oct 2012 11:17:36 +0000 (-0300)
Subject: [media] media: v4l2-ctrls: add control for test pattern
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5ebef0fbe0f72fa911088800c5d0bc7a872c35de;p=openwrt%2Fstaging%2Fblogic.git

[media] media: v4l2-ctrls: add control for test pattern

add V4L2_CID_TEST_PATTERN of type menu, which determines
the internal test pattern selected by the device.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index 272a5f718509..a84a08ca51dc 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -4267,6 +4267,16 @@ interface and may change in the future.</para>
 	    pixels / second.
 	    </entry>
 	  </row>
+	  <row>
+	    <entry spanname="id"><constant>V4L2_CID_TEST_PATTERN</constant></entry>
+	    <entry>menu</entry>
+	  </row>
+	  <row id="v4l2-test-pattern">
+	    <entry spanname="descr"> Some capture/display/sensor devices have
+	    the capability to generate test pattern images. These hardware
+	    specific test patterns can be used to test if a device is working
+	    properly.</entry>
+	  </row>
 	  <row><entry></entry></row>
 	</tbody>
       </tgroup>
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 631cdc0e0bda..0bcef2b52cb1 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -749,6 +749,7 @@ const char *v4l2_ctrl_get_name(u32 id)
 	case V4L2_CID_IMAGE_PROC_CLASS:		return "Image Processing Controls";
 	case V4L2_CID_LINK_FREQ:		return "Link Frequency";
 	case V4L2_CID_PIXEL_RATE:		return "Pixel Rate";
+	case V4L2_CID_TEST_PATTERN:		return "Test Pattern";
 
 	/* DV controls */
 	case V4L2_CID_DV_CLASS:			return "Digital Video Controls";
@@ -862,6 +863,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
 	case V4L2_CID_DV_TX_MODE:
 	case V4L2_CID_DV_TX_RGB_RANGE:
 	case V4L2_CID_DV_RX_RGB_RANGE:
+	case V4L2_CID_TEST_PATTERN:
 		*type = V4L2_CTRL_TYPE_MENU;
 		break;
 	case V4L2_CID_LINK_FREQ:
diff --git a/include/linux/v4l2-controls.h b/include/linux/v4l2-controls.h
index 421d24c7f686..e1b36809c21b 100644
--- a/include/linux/v4l2-controls.h
+++ b/include/linux/v4l2-controls.h
@@ -757,5 +757,6 @@ enum v4l2_jpeg_chroma_subsampling {
 
 #define V4L2_CID_LINK_FREQ			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 1)
 #define V4L2_CID_PIXEL_RATE			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 2)
+#define V4L2_CID_TEST_PATTERN			(V4L2_CID_IMAGE_PROC_CLASS_BASE + 3)
 
 #endif