media: rkisp1: Implement ENUM_FRAMESIZES

Implement VIDIOC_ENUM_FRAMESIZES for the rkisp1 capture devices.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index f5d5315..8f3cba3 100644 (file)
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -1234,6 +1234,35 @@ static int rkisp1_enum_fmt_vid_cap_mplane(struct file *file, void *priv,
        return -EINVAL;
 }
 
+static int rkisp1_enum_framesizes(struct file *file, void *fh,
+                                 struct v4l2_frmsizeenum *fsize)
+{
+       static const unsigned int max_widths[] = {
+               RKISP1_RSZ_MP_SRC_MAX_WIDTH,
+               RKISP1_RSZ_SP_SRC_MAX_WIDTH,
+       };
+       static const unsigned int max_heights[] = {
+               RKISP1_RSZ_MP_SRC_MAX_HEIGHT,
+               RKISP1_RSZ_SP_SRC_MAX_HEIGHT,
+       };
+       struct rkisp1_capture *cap = video_drvdata(file);
+
+       if (fsize->index != 0)
+               return -EINVAL;
+
+       fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+
+       fsize->stepwise.min_width = RKISP1_RSZ_SRC_MIN_WIDTH;
+       fsize->stepwise.max_width = max_widths[cap->id];
+       fsize->stepwise.step_width = 2;
+
+       fsize->stepwise.min_height = RKISP1_RSZ_SRC_MIN_HEIGHT;
+       fsize->stepwise.max_height = max_heights[cap->id];
+       fsize->stepwise.step_height = 2;
+
+       return 0;
+}
+
 static int rkisp1_s_fmt_vid_cap_mplane(struct file *file,
                                       void *priv, struct v4l2_format *f)
 {
@@ -1283,6 +1312,7 @@ static const struct v4l2_ioctl_ops rkisp1_v4l2_ioctl_ops = {
        .vidioc_s_fmt_vid_cap_mplane = rkisp1_s_fmt_vid_cap_mplane,
        .vidioc_g_fmt_vid_cap_mplane = rkisp1_g_fmt_vid_cap_mplane,
        .vidioc_enum_fmt_vid_cap = rkisp1_enum_fmt_vid_cap_mplane,
+       .vidioc_enum_framesizes = rkisp1_enum_framesizes,
        .vidioc_querycap = rkisp1_querycap,
        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,