1 files changed, 68 insertions, 9 deletions

diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index ff37b4c15f4..ab079d9256c 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -194,15 +194,24 @@ static void em28xx_copy_video(struct em28xx *dev,
         startread = p;
         remain = len;
 
-        /* Interlaces frame */
-        if (buf->top_field)
+        if (dev->progressive)
                 fieldstart = outp;
-        else
-                fieldstart = outp + bytesperline;
+        else {
+                /* Interlaces two half frames */
+                if (buf->top_field)
+                        fieldstart = outp;
+                else
+                        fieldstart = outp + bytesperline;
+        }
 
         linesdone = dma_q->pos / bytesperline;
         currlinedone = dma_q->pos % bytesperline;
-        offset = linesdone * bytesperline * 2 + currlinedone;
+
+        if (dev->progressive)
+                offset = linesdone * bytesperline + currlinedone;
+        else
+                offset = linesdone * bytesperline * 2 + currlinedone;
+
         startwrite = fieldstart + offset;
         lencopy = bytesperline - currlinedone;
         lencopy = lencopy > remain ? remain : lencopy;
@@ -376,7 +385,7 @@ static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb)
                         em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2],
                                        len, (p[2] & 1) ? "odd" : "even");
 
-                        if (!(p[2] & 1)) {
+                        if (dev->progressive || !(p[2] & 1)) {
                                 if (buf != NULL)
                                         buffer_filled(dev, dma_q, buf);
                                 get_next_buf(dma_q, &buf);
@@ -689,7 +698,10 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 
         /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
-        f->fmt.pix.field = dev->interlaced ?
+        if (dev->progressive)
+                f->fmt.pix.field = V4L2_FIELD_NONE;
+        else
+                f->fmt.pix.field = dev->interlaced ?
                            V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
 
         mutex_unlock(&dev->lock);
@@ -753,7 +765,11 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
         f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-        f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+        if (dev->progressive)
+                f->fmt.pix.field = V4L2_FIELD_NONE;
+        else
+                f->fmt.pix.field = dev->interlaced ?
+                           V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
 
         return 0;
 }
@@ -846,6 +862,41 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
         return 0;
 }
 
+static int vidioc_g_parm(struct file *file, void *priv,
+                         struct v4l2_streamparm *p)
+{
+        struct em28xx_fh   *fh  = priv;
+        struct em28xx      *dev = fh->dev;
+        int rc = 0;
+
+        if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+                return -EINVAL;
+
+        if (dev->board.is_webcam)
+                rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
+                                                video, g_parm, p);
+        else
+                v4l2_video_std_frame_period(dev->norm,
+                                                 &p->parm.capture.timeperframe);
+
+        return rc;
+}
+
+static int vidioc_s_parm(struct file *file, void *priv,
+                         struct v4l2_streamparm *p)
+{
+        struct em28xx_fh   *fh  = priv;
+        struct em28xx      *dev = fh->dev;
+
+        if (!dev->board.is_webcam)
+                return -EINVAL;
+
+        if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+                return -EINVAL;
+
+        return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
+}
+
 static const char *iname[] = {
         [EM28XX_VMUX_COMPOSITE1] = "Composite1",
         [EM28XX_VMUX_COMPOSITE2] = "Composite2",
@@ -1624,6 +1675,7 @@ static int em28xx_v4l2_open(struct file *filp)
         struct em28xx *dev;
         enum v4l2_buf_type fh_type;
         struct em28xx_fh *fh;
+        enum v4l2_field field;
 
         dev = em28xx_get_device(minor, &fh_type, &radio);
 
@@ -1665,8 +1717,13 @@ static int em28xx_v4l2_open(struct file *filp)
 
         dev->users++;
 
+        if (dev->progressive)
+                field = V4L2_FIELD_NONE;
+        else
+                field = V4L2_FIELD_INTERLACED;
+
         videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops,
-                        NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED,
+                        NULL, &dev->slock, fh->type, field,
                         sizeof(struct em28xx_buffer), fh);
 
         mutex_unlock(&dev->lock);
@@ -1885,6 +1942,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
         .vidioc_qbuf                = vidioc_qbuf,
         .vidioc_dqbuf               = vidioc_dqbuf,
         .vidioc_s_std               = vidioc_s_std,
+        .vidioc_g_parm              = vidioc_g_parm,
+        .vidioc_s_parm              = vidioc_s_parm,
         .vidioc_enum_input          = vidioc_enum_input,
         .vidioc_g_input             = vidioc_g_input,
         .vidioc_s_input             = vidioc_s_input,