From: Lad, Prabhakar <prabhakar.lad@xxxxxx>
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@xxxxxx>
Signed-off-by: Manjunath Hadli <manjunath.hadli@xxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxx>
Cc: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Rob Landley <rob@xxxxxxxxxxx>
---
This patches has one checkpatch warning for line over
80 characters altough it can be avoided I have kept it
for consistency.
Changes for v4:
1: Fixed some grammar/style issues, pointed by Hans.
Changes for v3:
1: Removed the menu for test pattern, pointed by Sakari.
Changes for v2:
1: Included display devices in the description for test pattern
as pointed by Hans.
2: In the menu replaced 'Test Pattern Disabled' by 'Disabled' as
pointed by Sylwester.
3: Removed the test patterns from menu as the are hardware specific
as pointed by Sakari.
Documentation/DocBook/media/v4l/controls.xml | 10 ++++++++++
drivers/media/v4l2-core/v4l2-ctrls.c | 2 ++
include/linux/videodev2.h | 1 +
3 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index f0fb08d..5450d31 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -4313,6 +4313,16 @@ interface and may change in the future.</para>
</tbody>
</entrytbl>
</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 8f2f40b..41b7732 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -740,6 +740,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_LINK_FREQ: return "Link Frequency";
case V4L2_CID_PIXEL_RATE: return "Pixel Rate";
case V4L2_CID_DPCM_PREDICTOR: return "DPCM Predictor";
+ case V4L2_CID_TEST_PATTERN: return "Test Pattern";
default:
return NULL;
@@ -841,6 +842,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_EXPOSURE_METERING:
case V4L2_CID_SCENE_MODE:
case V4L2_CID_DPCM_PREDICTOR:
+ case V4L2_CID_TEST_PATTERN:
*type = V4L2_CTRL_TYPE_MENU;
break;
case V4L2_CID_LINK_FREQ:
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index ca9fb78..7014c0b 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -2005,6 +2005,7 @@ enum v4l2_dpcm_predictor {
V4L2_DPCM_PREDICTOR_SIMPLE = 0,
V4L2_DPCM_PREDICTOR_ADVANCED = 1,
};
+#define V4L2_CID_TEST_PATTERN (V4L2_CID_IMAGE_PROC_CLASS_BASE + 4)
/*
* T U N I N G
--
1.7.4.1
--
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