From: Yunke Cao <yunkec@google.com>

This control represents a generic read/write rectangle.
It supports V4L2_CTRL_WHICH_MIN/MAX_VAL.

Signed-off-by: Yunke Cao <yunkec@google.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 .../media/test-drivers/vivid/vivid-ctrls.c    | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.c b/drivers/media/test-drivers/vivid/vivid-ctrls.c
index 8bb38bc7b8cc..bed5f4fb0c69 100644
--- a/drivers/media/test-drivers/vivid/vivid-ctrls.c
+++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c
@@ -37,6 +37,7 @@
 #define VIVID_CID_U8_PIXEL_ARRAY	(VIVID_CID_CUSTOM_BASE + 14)
 #define VIVID_CID_S32_ARRAY		(VIVID_CID_CUSTOM_BASE + 15)
 #define VIVID_CID_S64_ARRAY		(VIVID_CID_CUSTOM_BASE + 16)
+#define VIVID_CID_RECT			(VIVID_CID_CUSTOM_BASE + 17)
 
 #define VIVID_CID_VIVID_BASE		(0x00f00000 | 0xf000)
 #define VIVID_CID_VIVID_CLASS		(0x00f00000 | 1)
@@ -360,6 +361,38 @@ static const struct v4l2_ctrl_config vivid_ctrl_ro_int32 = {
 	.step = 1,
 };
 
+static const struct v4l2_rect rect_def = {
+	.top = 100,
+	.left = 200,
+	.width = 300,
+	.height = 400,
+};
+
+static const struct v4l2_rect rect_min = {
+	.top = 0,
+	.left = 0,
+	.width = 1,
+	.height = 1,
+};
+
+static const struct v4l2_rect rect_max = {
+	.top = 0,
+	.left = 0,
+	.width = 1000,
+	.height = 2000,
+};
+
+static const struct v4l2_ctrl_config vivid_ctrl_rect = {
+	.ops = &vivid_user_gen_ctrl_ops,
+	.id = VIVID_CID_RECT,
+	.name = "Rect",
+	.type = V4L2_CTRL_TYPE_RECT,
+	.flags = V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX,
+	.p_def.p_const = &rect_def,
+	.p_min.p_const = &rect_min,
+	.p_max.p_const = &rect_max,
+};
+
 /* Framebuffer Controls */
 
 static int vivid_fb_s_ctrl(struct v4l2_ctrl *ctrl)
@@ -1685,6 +1718,7 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap,
 	dev->int_menu = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_int_menu, NULL);
 	dev->ro_int32 = v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_ro_int32, NULL);
 	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_area, NULL);
+	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_rect, NULL);
 	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_array, NULL);
 	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u32_dyn_array, NULL);
 	v4l2_ctrl_new_custom(hdl_user_gen, &vivid_ctrl_u16_matrix, NULL);
-- 
2.43.0-rc1