diff options
| author | Frank Schaefer <fschaefer.oss@googlemail.com> | 2012-11-08 14:11:47 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-22 18:04:50 -0200 |
| commit | a950e4a75ea498f2f43c90a41173fdb4235752c9 (patch) | |
| tree | 2fa37ae8c1207a4957ec8c57bfa75dc3bdce17e2 | |
| parent | 4601cc39773b33a336eda2010ea5a551aaf6d7f0 (diff) | |
[media] em28xx: rename function em28xx_dvb_isoc_copy and extend for USB bulk transfers
The URB data processing for DVB bulk transfers is very similar to
what is done with isoc transfers, so create a common function that
works with both transfer types based on the existing isoc function.
Tested with device Hauppauge HVR-930c.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-dvb.c | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index 7583cb74d53d..22ef6dd128e2 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -10,6 +10,8 @@ (c) 2008 Aidan Thornton <makosoft@googlemail.com> + (c) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> + Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by: (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au> (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] @@ -124,9 +126,9 @@ static inline void print_err_status(struct em28xx *dev, } } -static inline int em28xx_dvb_isoc_copy(struct em28xx *dev, struct urb *urb) +static inline int em28xx_dvb_urb_data_copy(struct em28xx *dev, struct urb *urb) { - int i; + int xfer_bulk, num_packets, i; if (!dev) return 0; @@ -137,18 +139,34 @@ static inline int em28xx_dvb_isoc_copy(struct em28xx *dev, struct urb *urb) if (urb->status < 0) print_err_status(dev, -1, urb->status); - for (i = 0; i < urb->number_of_packets; i++) { - int status = urb->iso_frame_desc[i].status; + xfer_bulk = usb_pipebulk(urb->pipe); - if (status < 0) { - print_err_status(dev, i, status); - if (urb->iso_frame_desc[i].status != -EPROTO) - continue; - } + if (xfer_bulk) /* bulk */ + num_packets = 1; + else /* isoc */ + num_packets = urb->number_of_packets; - dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer + - urb->iso_frame_desc[i].offset, - urb->iso_frame_desc[i].actual_length); + for (i = 0; i < num_packets; i++) { + if (xfer_bulk) { + if (urb->status < 0) { + print_err_status(dev, i, urb->status); + if (urb->status != -EPROTO) + continue; + } + dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer, + urb->actual_length); + } else { + if (urb->iso_frame_desc[i].status < 0) { + print_err_status(dev, i, + urb->iso_frame_desc[i].status); + if (urb->iso_frame_desc[i].status != -EPROTO) + continue; + } + dvb_dmx_swfilter(&dev->dvb->demux, + urb->transfer_buffer + + urb->iso_frame_desc[i].offset, + urb->iso_frame_desc[i].actual_length); + } } return 0; @@ -177,7 +195,7 @@ static int em28xx_start_streaming(struct em28xx_dvb *dvb) EM28XX_DVB_NUM_BUFS, max_dvb_packet_size, EM28XX_DVB_NUM_ISOC_PACKETS, - em28xx_dvb_isoc_copy); + em28xx_dvb_urb_data_copy); } static int em28xx_stop_streaming(struct em28xx_dvb *dvb) |