[media] v4l: Add camera pan/tilt speed controls
The V4L2_CID_PAN_SPEED and V4L2_CID_TILT_SPEED controls allow to move the camera by setting its rotation speed around its axis. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Pawel Osciak <posciak@chromium.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -2545,6 +2545,16 @@ fields changed from _s32 to _u32.
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</orderedlist>
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</section>
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<section>
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<title>V4L2 in Linux 3.18</title>
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<orderedlist>
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<listitem>
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<para>Added <constant>V4L2_CID_PAN_SPEED</constant> and
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<constant>V4L2_CID_TILT_SPEED</constant> camera controls.</para>
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</listitem>
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</orderedlist>
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</section>
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<section id="other">
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<title>Relation of V4L2 to other Linux multimedia APIs</title>
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@ -3965,6 +3965,27 @@ by exposure, white balance or focus controls.</entry>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_PAN_SPEED</constant> </entry>
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<entry>integer</entry>
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</row><row><entry spanname="descr">This control turns the
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camera horizontally at the specific speed. The unit is undefined. A
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positive value moves the camera to the right (clockwise when viewed
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from above), a negative value to the left. A value of zero stops the motion
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if one is in progress and has no effect otherwise.</entry>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_TILT_SPEED</constant> </entry>
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<entry>integer</entry>
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</row><row><entry spanname="descr">This control turns the
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camera vertically at the specified speed. The unit is undefined. A
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positive value moves the camera up, a negative value down. A value of zero
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stops the motion if one is in progress and has no effect otherwise.</entry>
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</row>
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<row><entry></entry></row>
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</tbody>
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</tgroup>
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</table>
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@ -796,6 +796,8 @@ const char *v4l2_ctrl_get_name(u32 id)
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case V4L2_CID_AUTO_FOCUS_STOP: return "Auto Focus, Stop";
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case V4L2_CID_AUTO_FOCUS_STATUS: return "Auto Focus, Status";
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case V4L2_CID_AUTO_FOCUS_RANGE: return "Auto Focus, Range";
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case V4L2_CID_PAN_SPEED: return "Pan, Speed";
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case V4L2_CID_TILT_SPEED: return "Tilt, Speed";
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/* FM Radio Modulator controls */
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/* Keep the order of the 'case's the same as in v4l2-controls.h! */
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@ -746,6 +746,8 @@ enum v4l2_auto_focus_range {
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V4L2_AUTO_FOCUS_RANGE_INFINITY = 3,
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};
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#define V4L2_CID_PAN_SPEED (V4L2_CID_CAMERA_CLASS_BASE+32)
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#define V4L2_CID_TILT_SPEED (V4L2_CID_CAMERA_CLASS_BASE+33)
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/* FM Modulator class control IDs */
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