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authorJean-Francois Moine <moinejf@free.fr>2009-11-13 06:16:02 -0500
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-05 15:41:59 -0500
commitd131c3c9e136cb5a817094c3dc4b7261b495cd6e (patch)
treef0f6cac7cab36e23d8c00fb78cbd6d3fea6db87b
parent3ec342f25004c87c0d94de1bc1b5399685d58ad8 (diff)
V4L/DVB (13452): gspca - main: Let the driver scan URB packets when no frame buffer.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/gspca/gspca.c35
1 files changed, 12 insertions, 23 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 31ec5aa44910..68ba535300f7 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -144,13 +144,6 @@ static void fill_frame(struct gspca_dev *gspca_dev,
144 pkt_scan = gspca_dev->sd_desc->pkt_scan; 144 pkt_scan = gspca_dev->sd_desc->pkt_scan;
145 for (i = 0; i < urb->number_of_packets; i++) { 145 for (i = 0; i < urb->number_of_packets; i++) {
146 146
147 /* check the availability of the frame buffer */
148 if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS)
149 != V4L2_BUF_FLAG_QUEUED) {
150 gspca_dev->last_packet_type = DISCARD_PACKET;
151 break;
152 }
153
154 /* check the packet status and length */ 147 /* check the packet status and length */
155 len = urb->iso_frame_desc[i].actual_length; 148 len = urb->iso_frame_desc[i].actual_length;
156 if (len == 0) { 149 if (len == 0) {
@@ -223,17 +216,11 @@ static void bulk_irq(struct urb *urb)
223 goto resubmit; 216 goto resubmit;
224 } 217 }
225 218
226 /* check the availability of the frame buffer */ 219 PDEBUG(D_PACK, "packet l:%d", urb->actual_length);
227 if ((gspca_dev->cur_frame->v4l2_buf.flags & BUF_ALL_FLAGS) 220 gspca_dev->sd_desc->pkt_scan(gspca_dev,
228 != V4L2_BUF_FLAG_QUEUED) { 221 gspca_dev->frame,
229 gspca_dev->last_packet_type = DISCARD_PACKET; 222 urb->transfer_buffer,
230 } else { 223 urb->actual_length);
231 PDEBUG(D_PACK, "packet l:%d", urb->actual_length);
232 gspca_dev->sd_desc->pkt_scan(gspca_dev,
233 gspca_dev->frame,
234 urb->transfer_buffer,
235 urb->actual_length);
236 }
237 224
238resubmit: 225resubmit:
239 /* resubmit the URB */ 226 /* resubmit the URB */
@@ -266,16 +253,18 @@ struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev,
266 int i, j; 253 int i, j;
267 254
268 PDEBUG(D_PACK, "add t:%d l:%d", packet_type, len); 255 PDEBUG(D_PACK, "add t:%d l:%d", packet_type, len);
256
257 /* check the availability of the frame buffer */
269 frame = gspca_dev->cur_frame; 258 frame = gspca_dev->cur_frame;
259 if ((frame->v4l2_buf.flags & BUF_ALL_FLAGS)
260 != V4L2_BUF_FLAG_QUEUED) {
261 gspca_dev->last_packet_type = DISCARD_PACKET;
262 return frame;
263 }
270 264
271 /* when start of a new frame, if the current frame buffer 265 /* when start of a new frame, if the current frame buffer
272 * is not queued, discard the whole frame */ 266 * is not queued, discard the whole frame */
273 if (packet_type == FIRST_PACKET) { 267 if (packet_type == FIRST_PACKET) {
274 if ((frame->v4l2_buf.flags & BUF_ALL_FLAGS)
275 != V4L2_BUF_FLAG_QUEUED) {
276 gspca_dev->last_packet_type = DISCARD_PACKET;
277 return frame;
278 }
279 frame->data_end = frame->data; 268 frame->data_end = frame->data;
280 jiffies_to_timeval(get_jiffies_64(), 269 jiffies_to_timeval(get_jiffies_64(),
281 &frame->v4l2_buf.timestamp); 270 &frame->v4l2_buf.timestamp);