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path: root/drivers/media/platform/omap3isp/ispvideo.c
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Diffstat (limited to 'drivers/media/platform/omap3isp/ispvideo.c')
-rw-r--r--drivers/media/platform/omap3isp/ispvideo.c59
1 files changed, 45 insertions, 14 deletions
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index e36bac2..bc38c88 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -11,16 +11,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
*/
#include <asm/cacheflush.h>
@@ -319,10 +309,11 @@ isp_video_check_format(struct isp_video *video, struct isp_video_fh *vfh)
vfh->format.fmt.pix.height != format.fmt.pix.height ||
vfh->format.fmt.pix.width != format.fmt.pix.width ||
vfh->format.fmt.pix.bytesperline != format.fmt.pix.bytesperline ||
- vfh->format.fmt.pix.sizeimage != format.fmt.pix.sizeimage)
+ vfh->format.fmt.pix.sizeimage != format.fmt.pix.sizeimage ||
+ vfh->format.fmt.pix.field != format.fmt.pix.field)
return -EINVAL;
- return ret;
+ return 0;
}
/* -----------------------------------------------------------------------------
@@ -491,6 +482,11 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video)
else
buf->vb.v4l2_buf.sequence = atomic_read(&pipe->frame_number);
+ if (pipe->field != V4L2_FIELD_NONE)
+ buf->vb.v4l2_buf.sequence /= 2;
+
+ buf->vb.v4l2_buf.field = pipe->field;
+
/* Report pipeline errors to userspace on the capture device side. */
if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pipe->error) {
state = VB2_BUF_STATE_ERROR;
@@ -641,7 +637,40 @@ isp_video_set_format(struct file *file, void *fh, struct v4l2_format *format)
if (format->type != video->type)
return -EINVAL;
- mutex_lock(&video->mutex);
+ /* Replace unsupported field orders with sane defaults. */
+ switch (format->fmt.pix.field) {
+ case V4L2_FIELD_NONE:
+ /* Progressive is supported everywhere. */
+ break;
+ case V4L2_FIELD_ALTERNATE:
+ /* ALTERNATE is not supported on output nodes. */
+ if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ format->fmt.pix.field = V4L2_FIELD_NONE;
+ break;
+ case V4L2_FIELD_INTERLACED:
+ /* The ISP has no concept of video standard, select the
+ * top-bottom order when the unqualified interlaced order is
+ * requested.
+ */
+ format->fmt.pix.field = V4L2_FIELD_INTERLACED_TB;
+ /* Fall-through */
+ case V4L2_FIELD_INTERLACED_TB:
+ case V4L2_FIELD_INTERLACED_BT:
+ /* Interlaced orders are only supported at the CCDC output. */
+ if (video != &video->isp->isp_ccdc.video_out)
+ format->fmt.pix.field = V4L2_FIELD_NONE;
+ break;
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ case V4L2_FIELD_SEQ_TB:
+ case V4L2_FIELD_SEQ_BT:
+ default:
+ /* All other field orders are currently unsupported, default to
+ * progressive.
+ */
+ format->fmt.pix.field = V4L2_FIELD_NONE;
+ break;
+ }
/* Fill the bytesperline and sizeimage fields by converting to media bus
* format and back to pixel format.
@@ -649,9 +678,10 @@ isp_video_set_format(struct file *file, void *fh, struct v4l2_format *format)
isp_video_pix_to_mbus(&format->fmt.pix, &fmt);
isp_video_mbus_to_pix(video, &fmt, &format->fmt.pix);
+ mutex_lock(&video->mutex);
vfh->format = *format;
-
mutex_unlock(&video->mutex);
+
return 0;
}
@@ -1039,6 +1069,7 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
video->queue = &vfh->queue;
INIT_LIST_HEAD(&video->dmaqueue);
atomic_set(&pipe->frame_number, -1);
+ pipe->field = vfh->format.fmt.pix.field;
mutex_lock(&video->queue_lock);
ret = vb2_streamon(&vfh->queue, type);

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