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[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>
This commit is contained in:
Lad, Prabhakar 2012-10-01 08:17:36 -03:00 committed by Mauro Carvalho Chehab
parent ab7ef22419
commit 5ebef0fbe0
3 changed files with 13 additions and 0 deletions
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10
Documentation/DocBook/media/v4l/controls.xml
View File

@ -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>

2
drivers/media/v4l2-core/v4l2-ctrls.c
View File

@ -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:

1
include/linux/v4l2-controls.h
View File

@ -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