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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-07-23 09:15:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-09-13 16:23:36 -0300
commit03d5285b8b320994b57b610553cf2b019186b5ba (patch)
tree7f5554a5570b2125b2e6bb6f4f4db2cc11c7d306 /include/media/v4l2-ctrls.h
parent117a55b69d36a19028d1c59a737ad1246a0a75ad (diff)
[media] v4l2-ctrls: Add v4l2_ctrl_[gs]_ctrl_int64()
These helper functions get and set a 64-bit control's value from within a driver. They are similar to v4l2_ctrl_[gs]_ctrl() but operate on 64-bit integer controls instead of 32-bit controls. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-ctrls.h')
-rw-r--r--include/media/v4l2-ctrls.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 776605f1cbe2..7ef6b27d450f 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -511,6 +511,29 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl);
*/
int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val);
+/** v4l2_ctrl_g_ctrl_int64() - Helper function to get a 64-bit control's value from within a driver.
+ * @ctrl: The control.
+ *
+ * This returns the control's value safely by going through the control
+ * framework. This function will lock the control's handler, so it cannot be
+ * used from within the &v4l2_ctrl_ops functions.
+ *
+ * This function is for 64-bit integer type controls only.
+ */
+s64 v4l2_ctrl_g_ctrl_int64(struct v4l2_ctrl *ctrl);
+
+/** v4l2_ctrl_s_ctrl_int64() - Helper function to set a 64-bit control's value from within a driver.
+ * @ctrl: The control.
+ * @val: The new value.
+ *
+ * This set the control's new value safely by going through the control
+ * framework. This function will lock the control's handler, so it cannot be
+ * used from within the &v4l2_ctrl_ops functions.
+ *
+ * This function is for 64-bit integer type controls only.
+ */
+int v4l2_ctrl_s_ctrl_int64(struct v4l2_ctrl *ctrl, s64 val);
+
/* Internal helper functions that deal with control events. */
extern const struct v4l2_subscribed_event_ops v4l2_ctrl_sub_ev_ops;
void v4l2_ctrl_replace(struct v4l2_event *old, const struct v4l2_event *new);

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