[RFCv2 PATCH 11/21] v4l2-ctrls: prepare for matrix support: add cols & rows fields.

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From: Hans Verkuil <hans.verkuil@xxxxxxxxx>

Add cols and rows fields to the core control structures in preparation
for matrix support.

Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 26 +++++++++++++++++---------
 include/media/v4l2-ctrls.h           |  6 ++++++
 2 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 2eb5b65..c995439 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1722,7 +1722,7 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
 			u32 id, const char *name, const char *unit,
 			enum v4l2_ctrl_type type,
 			s64 min, s64 max, u64 step, s64 def,
-			u32 elem_size,
+			u32 cols, u32 rows, u32 elem_size,
 			u32 flags, const char * const *qmenu,
 			const s64 *qmenu_int, void *priv)
 {
@@ -1735,6 +1735,11 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
 	if (hdl->error)
 		return NULL;
 
+	if (cols == 0)
+		cols = 1;
+	if (rows == 0)
+		rows = 1;
+
 	if (type == V4L2_CTRL_TYPE_INTEGER64)
 		elem_size = sizeof(s64);
 	else if (type == V4L2_CTRL_TYPE_STRING)
@@ -1803,6 +1808,8 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
 	ctrl->is_string = type == V4L2_CTRL_TYPE_STRING;
 	ctrl->is_ptr = type >= V4L2_CTRL_COMPLEX_TYPES || ctrl->is_string;
 	ctrl->is_int = !ctrl->is_ptr && type != V4L2_CTRL_TYPE_INTEGER64;
+	ctrl->cols = cols;
+	ctrl->rows = rows;
 	ctrl->elem_size = elem_size;
 	if (type == V4L2_CTRL_TYPE_MENU)
 		ctrl->qmenu = qmenu;
@@ -1868,8 +1875,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
 
 	ctrl = v4l2_ctrl_new(hdl, cfg->ops, cfg->type_ops, cfg->id, name, unit,
 			type, min, max,
-			is_menu ? cfg->menu_skip_mask : step,
-			def, cfg->elem_size,
+			is_menu ? cfg->menu_skip_mask : step, def,
+			cfg->cols, cfg->rows, cfg->elem_size,
 			flags, qmenu, qmenu_int, priv);
 	if (ctrl)
 		ctrl->is_private = cfg->is_private;
@@ -1895,7 +1902,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
 		return NULL;
 	}
 	return v4l2_ctrl_new(hdl, ops, NULL, id, name, unit, type,
-			     min, max, step, def, 0,
+			     min, max, step, def, 0, 0, 0,
 			     flags, NULL, NULL, NULL);
 }
 EXPORT_SYMBOL(v4l2_ctrl_new_std);
@@ -1929,7 +1936,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
 		return NULL;
 	}
 	return v4l2_ctrl_new(hdl, ops, NULL, id, name, unit, type,
-			     0, max, mask, def, 0,
+			     0, max, mask, def, 0, 0, 0,
 			     flags, qmenu, qmenu_int, NULL);
 }
 EXPORT_SYMBOL(v4l2_ctrl_new_std_menu);
@@ -1962,8 +1969,8 @@ struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
 		return NULL;
 	}
 	return v4l2_ctrl_new(hdl, ops, NULL, id, name, unit, type,
-			     0, max, mask, def,
-			     0, flags, qmenu, NULL, NULL);
+			     0, max, mask, def, 0, 0, 0,
+			     flags, qmenu, NULL, NULL);
 
 }
 EXPORT_SYMBOL(v4l2_ctrl_new_std_menu_items);
@@ -1988,7 +1995,7 @@ struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
 		return NULL;
 	}
 	return v4l2_ctrl_new(hdl, ops, NULL, id, name, unit, type,
-			     0, max, 0, def, 0,
+			     0, max, 0, def, 0, 0, 0,
 			     flags, NULL, qmenu_int, NULL);
 }
 EXPORT_SYMBOL(v4l2_ctrl_new_int_menu);
@@ -2327,7 +2334,8 @@ int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctr
 	qc->min.val = ctrl->minimum;
 	qc->max.val = ctrl->maximum;
 	qc->def.val = ctrl->default_value;
-	qc->cols = qc->rows = 1;
+	qc->cols = ctrl->cols;
+	qc->rows = ctrl->rows;
 	if (ctrl->type == V4L2_CTRL_TYPE_MENU
 	    || ctrl->type == V4L2_CTRL_TYPE_INTEGER_MENU)
 		qc->step.val = 1;
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index fb3aaf9..c86a071 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -129,6 +129,8 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv);
   * @minimum:	The control's minimum value.
   * @maximum:	The control's maximum value.
   * @default_value: The control's default value.
+  * @rows:	The number of rows in the matrix.
+  * @cols:	The number of columns in the matrix.
   * @step:	The control's step value for non-menu controls.
   * @elem_size:	The size in bytes of the control.
   * @menu_skip_mask: The control's skip mask for menu controls. This makes it
@@ -178,6 +180,7 @@ struct v4l2_ctrl {
 	const char *unit;
 	enum v4l2_ctrl_type type;
 	s64 minimum, maximum, default_value;
+	u32 rows, cols;
 	u32 elem_size;
 	union {
 		u64 step;
@@ -265,6 +268,8 @@ struct v4l2_ctrl_handler {
   * @max:	The control's maximum value.
   * @step:	The control's step value for non-menu controls.
   * @def: 	The control's default value.
+  * @rows:	The number of rows in the matrix.
+  * @cols:	The number of columns in the matrix.
   * @elem_size:	The size in bytes of the control.
   * @flags:	The control's flags.
   * @menu_skip_mask: The control's skip mask for menu controls. This makes it
@@ -291,6 +296,7 @@ struct v4l2_ctrl_config {
 	s64 max;
 	u64 step;
 	s64 def;
+	u32 rows, cols;
 	u32 elem_size;
 	u32 flags;
 	u64 menu_skip_mask;
-- 
1.8.5.2

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