diff options
| author | Jean-Francois Moine <moinejf@free.fr> | 2009-11-13 07:38:16 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:41:59 -0200 |
| commit | 3ec342f25004c87c0d94de1bc1b5399685d58ad8 (patch) | |
| tree | 9a6074b40aad08dd16f12186599a85be7b44b8c6 /drivers/media | |
| parent | 8157852f73f961b28d495bfa8374263d293b106d (diff) | |
V4L/DVB (13451): gspca - main: Memorize the current frame buffer.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 21 | ||||
| -rw-r--r-- | drivers/media/video/gspca/gspca.h | 1 |
2 files changed, 12 insertions, 10 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 08433f77245..31ec5aa4491 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -126,7 +126,6 @@ EXPORT_SYMBOL(gspca_get_i_frame); static void fill_frame(struct gspca_dev *gspca_dev, struct urb *urb) { - struct gspca_frame *frame; u8 *data; /* address of data in the iso message */ int i, len, st; cam_pkt_op pkt_scan; @@ -146,8 +145,8 @@ static void fill_frame(struct gspca_dev *gspca_dev, for (i = 0; i < urb->number_of_packets; i++) { /* check the availability of the frame buffer */ - frame = gspca_get_i_frame(gspca_dev); - if (!frame) { + if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS) + != V4L2_BUF_FLAG_QUEUED) { gspca_dev->last_packet_type = DISCARD_PACKET; break; } @@ -173,7 +172,7 @@ static void fill_frame(struct gspca_dev *gspca_dev, i, urb->iso_frame_desc[i].offset, len); data = (u8 *) urb->transfer_buffer + urb->iso_frame_desc[i].offset; - pkt_scan(gspca_dev, frame, data, len); + pkt_scan(gspca_dev, gspca_dev->cur_frame, data, len); } resubmit: @@ -204,7 +203,6 @@ static void isoc_irq(struct urb *urb) static void bulk_irq(struct urb *urb) { struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context; - struct gspca_frame *frame; int st; PDEBUG(D_PACK, "bulk irq"); @@ -226,13 +224,13 @@ static void bulk_irq(struct urb *urb) } /* check the availability of the frame buffer */ - frame = gspca_get_i_frame(gspca_dev); - if (!frame) { + if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS) + != V4L2_BUF_FLAG_QUEUED) { gspca_dev->last_packet_type = DISCARD_PACKET; } else { PDEBUG(D_PACK, "packet l:%d", urb->actual_length); gspca_dev->sd_desc->pkt_scan(gspca_dev, - frame, + gspca_dev->frame, urb->transfer_buffer, urb->actual_length); } @@ -260,13 +258,15 @@ resubmit: */ struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev, enum gspca_packet_type packet_type, - struct gspca_frame *frame, + struct gspca_frame *dummy, const __u8 *data, int len) { + struct gspca_frame *frame; int i, j; PDEBUG(D_PACK, "add t:%d l:%d", packet_type, len); + frame = gspca_dev->cur_frame; /* when start of a new frame, if the current frame buffer * is not queued, discard the whole frame */ @@ -315,7 +315,7 @@ struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev, i, gspca_dev->fr_o); j = gspca_dev->fr_queue[i]; - frame = &gspca_dev->frame[j]; + gspca_dev->cur_frame = frame = &gspca_dev->frame[j]; } return frame; } @@ -398,6 +398,7 @@ static int frame_alloc(struct gspca_dev *gspca_dev, frame->v4l2_buf.m.offset = i * frsz; } gspca_dev->fr_i = gspca_dev->fr_o = gspca_dev->fr_q = 0; + gspca_dev->cur_frame = &gspca_dev->frame[0]; gspca_dev->last_packet_type = DISCARD_PACKET; gspca_dev->sequence = 0; return 0; diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index d59a684056c..59078bbf472 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -151,6 +151,7 @@ struct gspca_dev { __u8 *frbuf; /* buffer for nframes */ struct gspca_frame frame[GSPCA_MAX_FRAMES]; + struct gspca_frame *cur_frame; /* frame beeing filled */ __u32 frsz; /* frame size */ char nframes; /* number of frames */ char fr_i; /* frame being filled */ |