From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Mon, 6 Aug 2012 13:37:18 +0000 (-0300)
Subject: [media] vivi: add frame size reporting
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=77747f7960986e6a2210a837e6c76a68145d0bf9;p=linux-beck.git

[media] vivi: add frame size reporting

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 463564f0e3c2..cfa6a421c0a2 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -991,6 +991,27 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 	return 0;
 }
 
+static int vidioc_enum_framesizes(struct file *file, void *fh,
+					 struct v4l2_frmsizeenum *fsize)
+{
+	static const struct v4l2_frmsize_stepwise sizes = {
+		48, MAX_WIDTH, 4,
+		32, MAX_HEIGHT, 1
+	};
+	int i;
+
+	if (fsize->index)
+		return -EINVAL;
+	for (i = 0; i < ARRAY_SIZE(formats); i++)
+		if (formats[i].fourcc == fsize->pixel_format)
+			break;
+	if (i == ARRAY_SIZE(formats))
+		return -EINVAL;
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise = sizes;
+	return 0;
+}
+
 /* only one input in this sample driver */
 static int vidioc_enum_input(struct file *file, void *priv,
 				struct v4l2_input *inp)
@@ -1175,6 +1196,7 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
 	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
 	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
 	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
+	.vidioc_enum_framesizes   = vidioc_enum_framesizes,
 	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
 	.vidioc_create_bufs   = vb2_ioctl_create_bufs,
 	.vidioc_prepare_buf   = vb2_ioctl_prepare_buf,