diff options
| -rw-r--r-- | Documentation/DocBook/media/v4l/controls.xml | 15 | ||||
| -rw-r--r-- | drivers/media/video/v4l2-ctrls.c | 2 | ||||
| -rw-r--r-- | include/linux/videodev2.h | 2 |
3 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index 56dfdf02c76..16c7aab595a 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3092,6 +3092,21 @@ sky. It corresponds approximately to 9000...10000 K color temperature. </row> <row><entry></entry></row> + <row id="v4l2-wide-dynamic-range"> + <entry spanname="id"><constant>V4L2_CID_WIDE_DYNAMIC_RANGE</constant></entry> + <entry>boolean</entry> + </row> + <row> + <entry spanname="descr">Enables or disables the camera's wide dynamic +range feature. This feature allows to obtain clear images in situations where +intensity of the illumination varies significantly throughout the scene, i.e. +there are simultaneously very dark and very bright areas. It is most commonly +realized in cameras by combining two subsequent frames with different exposure +times. <footnote id="ctypeconv"><para> This control may be changed to a menu +control in the future, if more options are required.</para></footnote></entry> + </row> + <row><entry></entry></row> + </tbody> </tgroup> </table> diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index 56ac71c8ba3..0c18c82e0b5 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -621,6 +621,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative"; case V4L2_CID_AUTO_EXPOSURE_BIAS: return "Auto Exposure, Bias"; case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: return "White Balance, Auto & Preset"; + case V4L2_CID_WIDE_DYNAMIC_RANGE: return "Wide Dynamic Range"; /* FM Radio Modulator control */ /* Keep the order of the 'case's the same as in videodev2.h! */ @@ -723,6 +724,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL: + case V4L2_CID_WIDE_DYNAMIC_RANGE: *type = V4L2_CTRL_TYPE_BOOLEAN; *min = 0; *max = *step = 1; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 85c4e8f1090..d93e42bc034 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1723,6 +1723,8 @@ enum v4l2_auto_n_preset_white_balance { V4L2_WHITE_BALANCE_SHADE = 9, }; +#define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21) + /* FM Modulator class control IDs */ #define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900) #define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1) |