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authorSylwester Nawrocki <s.nawrocki@samsung.com>2013-07-09 01:24:40 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-08-18 07:12:59 -0300
commitd1e9b7c12b745af715101578a677e4a6b16c09e4 (patch)
tree6ccfe5745fc9bdc28c14fbab746f973608b39f8d /drivers/media/v4l2-core
parentdebe6267b718526ee9715501b8f52a0295e3712a (diff)
downloadlinux-d1e9b7c12b745af715101578a677e4a6b16c09e4.tar.gz
[media] V4L: Add support for integer menu controls with standard menu items
The patch modifies the helper function v4l2_ctrl_new_std_menu to accept integer menu controls with standard menu items. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core')
-rw-r--r--drivers/media/v4l2-core/v4l2-ctrls.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index fccd08b66d1a..e03a2e852143 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -552,6 +552,20 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
}
EXPORT_SYMBOL(v4l2_ctrl_get_menu);
+/*
+ * Returns NULL or an s64 type array containing the menu for given
+ * control ID. The total number of the menu items is returned in @len.
+ */
+const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
+{
+ switch (id) {
+ default:
+ *len = 0;
+ return NULL;
+ };
+}
+EXPORT_SYMBOL(v4l2_ctrl_get_int_menu);
+
/* Return the control name. */
const char *v4l2_ctrl_get_name(u32 id)
{
@@ -1712,20 +1726,28 @@ 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)
{
- const char * const *qmenu = v4l2_ctrl_get_menu(id);
+ const char * const *qmenu = NULL;
+ const s64 *qmenu_int = NULL;
const char *name;
enum v4l2_ctrl_type type;
+ unsigned int qmenu_int_len;
s32 min;
s32 step;
u32 flags;
v4l2_ctrl_fill(id, &name, &type, &min, &max, &step, &def, &flags);
- if (type != V4L2_CTRL_TYPE_MENU) {
+
+ if (type == V4L2_CTRL_TYPE_MENU)
+ qmenu = v4l2_ctrl_get_menu(id);
+ else if (type == V4L2_CTRL_TYPE_INTEGER_MENU)
+ qmenu_int = v4l2_ctrl_get_int_menu(id, &qmenu_int_len);
+
+ if ((!qmenu && !qmenu_int) || (qmenu_int && max > qmenu_int_len)) {
handler_set_err(hdl, -EINVAL);
return NULL;
}
return v4l2_ctrl_new(hdl, ops, id, name, type,
- 0, max, mask, def, flags, qmenu, NULL, NULL);
+ 0, max, mask, def, flags, qmenu, qmenu_int, NULL);
}
EXPORT_SYMBOL(v4l2_ctrl_new_std_menu);