V4L/DVB: gspca - main: Simplify image building
The image pointer and its length are now in the main structure instead
of in the frame buffer. They are updated on application vidioc_qbuf and
in the URB interrupt function when ending an image.
Signed-off-by: Jean-François Moine <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
diff --git a/drivers/media/video/gspca/cpia1.c b/drivers/media/video/gspca/cpia1.c
index 58b696f..4b3ea3b 100644
--- a/drivers/media/video/gspca/cpia1.c
+++ b/drivers/media/video/gspca/cpia1.c
@@ -1760,22 +1760,23 @@
data[25] == sd->params.roi.colEnd &&
data[26] == sd->params.roi.rowStart &&
data[27] == sd->params.roi.rowEnd) {
- struct gspca_frame *frame = gspca_get_i_frame(gspca_dev);
+ u8 *image;
atomic_set(&sd->cam_exposure, data[39] * 2);
atomic_set(&sd->fps, data[41]);
- if (frame == NULL) {
+ image = gspca_dev->image;
+ if (image == NULL) {
gspca_dev->last_packet_type = DISCARD_PACKET;
return;
}
/* Check for proper EOF for last frame */
- if ((frame->data_end - frame->data) > 4 &&
- frame->data_end[-4] == 0xff &&
- frame->data_end[-3] == 0xff &&
- frame->data_end[-2] == 0xff &&
- frame->data_end[-1] == 0xff)
+ if (gspca_dev->image_len > 4 &&
+ image[gspca_dev->image_len - 4] == 0xff &&
+ image[gspca_dev->image_len - 3] == 0xff &&
+ image[gspca_dev->image_len - 2] == 0xff &&
+ image[gspca_dev->image_len - 1] == 0xff)
gspca_frame_add(gspca_dev, LAST_PACKET,
NULL, 0);
