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V4L/DVB (13452): gspca - main: Let the driver scan URB packets when no frame buffer.

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Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2009-11-13 08:16:02 -03:00 committed by Mauro Carvalho Chehab
parent 3ec342f250
commit d131c3c9e1
1 changed files with 12 additions and 23 deletions
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35
drivers/media/video/gspca/gspca.c
View file

@ -144,13 +144,6 @@ static void fill_frame(struct gspca_dev *gspca_dev,
pkt_scan = gspca_dev->sd_desc->pkt_scan; pkt_scan = gspca_dev->sd_desc->pkt_scan;
for (i = 0; i < urb->number_of_packets; i++) { for (i = 0; i < urb->number_of_packets; i++) {
/* check the availability of the frame buffer */
if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS)
!= V4L2_BUF_FLAG_QUEUED) {
gspca_dev->last_packet_type = DISCARD_PACKET;
break;
}
/* check the packet status and length */ /* check the packet status and length */
len = urb->iso_frame_desc[i].actual_length; len = urb->iso_frame_desc[i].actual_length;
if (len == 0) { if (len == 0) {
@ -223,17 +216,11 @@ static void bulk_irq(struct urb *urb)
goto resubmit; goto resubmit;
} }
/* check the availability of the frame buffer */ PDEBUG(D_PACK, "packet l:%d", urb->actual_length);
if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS) gspca_dev->sd_desc->pkt_scan(gspca_dev,
!= V4L2_BUF_FLAG_QUEUED) { gspca_dev->frame,
gspca_dev->last_packet_type = DISCARD_PACKET; urb->transfer_buffer,
} else { urb->actual_length);
PDEBUG(D_PACK, "packet l:%d", urb->actual_length);
gspca_dev->sd_desc->pkt_scan(gspca_dev,
gspca_dev->frame,
urb->transfer_buffer,
urb->actual_length);
}
resubmit: resubmit:
/* resubmit the URB */ /* resubmit the URB */
@ -266,16 +253,18 @@ struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev,
int i, j; int i, j;
PDEBUG(D_PACK, "add t:%d l:%d", packet_type, len); PDEBUG(D_PACK, "add t:%d l:%d", packet_type, len);
/* check the availability of the frame buffer */
frame = gspca_dev->cur_frame; frame = gspca_dev->cur_frame;
if ((frame->v4l2_buf.flags & BUF_ALL_FLAGS)
!= V4L2_BUF_FLAG_QUEUED) {
gspca_dev->last_packet_type = DISCARD_PACKET;
return frame;
}
/* when start of a new frame, if the current frame buffer /* when start of a new frame, if the current frame buffer
* is not queued, discard the whole frame */ * is not queued, discard the whole frame */
if (packet_type == FIRST_PACKET) { if (packet_type == FIRST_PACKET) {
if ((frame->v4l2_buf.flags & BUF_ALL_FLAGS)
!= V4L2_BUF_FLAG_QUEUED) {
gspca_dev->last_packet_type = DISCARD_PACKET;
return frame;
}
frame->data_end = frame->data; frame->data_end = frame->data;
jiffies_to_timeval(get_jiffies_64(), jiffies_to_timeval(get_jiffies_64(),
&frame->v4l2_buf.timestamp); &frame->v4l2_buf.timestamp);