This patch adds v4l2_ctrl_new_std_int_menu() helper function which can
be used in drivers for creating standard integer menu control. It is
similar to v4l2_ctrl_new_std_menu(), except it doesn't have a mask
parameter and an additional qmenu parameter allows passing an array
of signed 64-bit integers constituting the menu items.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/v4l2-ctrls.c | 21 +++++++++++++++++++++
include/media/v4l2-ctrls.h | 17 +++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index c93a979..e0725b5 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -1517,6 +1517,27 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
}
EXPORT_SYMBOL(v4l2_ctrl_new_std_menu);
+/* Helper function for standard integer menu controls */
+struct v4l2_ctrl *v4l2_ctrl_new_std_int_menu(struct v4l2_ctrl_handler *hdl,
+ const struct v4l2_ctrl_ops *ops,
+ u32 id, s32 max, s32 def, const s64 *qmenu_int)
+{
+ const char *name;
+ enum v4l2_ctrl_type type;
+ s32 min;
+ s32 step;
+ u32 flags;
+
+ v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags);
+ if (type != V4L2_CTRL_TYPE_INTEGER_MENU) {
+ handler_set_err(hdl, -EINVAL);
+ return NULL;
+ }
+ return v4l2_ctrl_new(hdl, ops, id, name, type,
+ 0, max, 0, def, flags, NULL, qmenu_int, NULL);
+}
+EXPORT_SYMBOL(v4l2_ctrl_new_std_int_menu);
+
/* Add a control from another handler to this handler */
struct v4l2_ctrl *v4l2_ctrl_add_ctrl(struct v4l2_ctrl_handler *hdl,
struct v4l2_ctrl *ctrl)
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 8920f82..15116d2 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -347,6 +347,23 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 max, s32 mask, s32 def);
+/** v4l2_ctrl_new_std_int_menu() - Create a new standard V4L2 integer menu control.
+ * @hdl: The control handler.
+ * @ops: The control ops.
+ * @id: The control ID.
+ * @max: The control's maximum value.
+ * @def: The control's default value.
+ * @qmenu_int: The control's menu entries.
+ *
+ * Same as v4l2_ctrl_new_std_menu(), but @mask is set to 0 and it additionaly
+ * needs an array of integers determining the menu entries.
+ *
+ * If @id refers to a non-integer-menu control, then this function will return NULL.
+ */
+struct v4l2_ctrl *v4l2_ctrl_new_std_int_menu(struct v4l2_ctrl_handler *hdl,
+ const struct v4l2_ctrl_ops *ops,
+ u32 id, s32 max, s32 def, const s64 *qmenu_int);
+
/** v4l2_ctrl_add_ctrl() - Add a control from another handler to this handler.
* @hdl: The control handler.
* @ctrl: The control to add.
--
1.7.10
--
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