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SubjectRe: [PATCH v3] media: v4l2-ctrls: add control for test pattern
Hi Hans,

Thanks for the review,

On Mon, Sep 24, 2012 at 7:07 PM, Hans Verkuil <hverkuil@xs4all.nl> wrote:
> On Mon September 24 2012 14:53:41 Prabhakar wrote:
>> From: Lad, Prabhakar <prabhakar.lad@ti.com>
>>
>> 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>
>> Cc: Hans Verkuil <hans.verkuil@cisco.com>
>> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>> Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
>> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
>> Cc: Hans de Goede <hdegoede@redhat.com>
>> Cc: Kyungmin Park <kyungmin.park@samsung.com>
>> Cc: Rob Landley <rob@landley.net>
>> ---
>> This patches has one checkpatch warning for line over
>> 80 characters altough it can be avoided I have kept it
>> for consistency.
>>
>> 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..51e9c4e 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"> The Capture/Display/Sensors have the capability
>> + to generate internal test patterns and this are hardware specific. This
>> + test patterns are used to test a device is properly working and can generate
>> + the desired waveforms that it supports.</entry>
>
> Some grammar/style fixes:
>
> <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>
>
I'll fix it in next version.

Regards,
--Prabhakar Lad

>
>> + </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
>>
>
> Regards,
>
> Hans
> --
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