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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 19:50:13 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 19:50:13 +0300 |
commit | 76d21c563569bcea6bc67d65cc2c460cff643058 (patch) | |
tree | 4dd2c9846ea7838077099646418978e354df1680 /drivers/media/dvb/ngene/ngene-dvb.c | |
parent | 6e50e9f9f4a8277b4d76de417ca77cf3921bd524 (diff) | |
parent | 472af2b05bdefcaee7e754e22cbf131110017ad6 (diff) | |
download | linux-76d21c563569bcea6bc67d65cc2c460cff643058.tar.xz |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits)
[media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t
[media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly
[media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE
[media] v4l: soc-camera: Store negotiated buffer settings
[media] rc: interim support for 32-bit NEC-ish scancodes
[media] mceusb: topseed 0x0011 needs gen3 init for tx to work
[media] lirc_zilog: error out if buffer read bytes != chunk size
[media] lirc: silence some compile warnings
[media] hdpvr: use same polling interval as other OS
[media] ir-kbd-i2c: pass device code w/key in hauppauge case
[media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap
[media] remove the old RC_MAP_HAUPPAUGE_NEW RC map
[media] rc/keymaps: Rename Hauppauge table as rc-hauppauge
[media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping
[media] rc-rc5-hauppauge-new: Add support for the old Black RC
[media] rc-rc5-hauppauge-new: Add the old control to the table
[media] rc-winfast: Fix the keycode tables
[media] a800: Fix a few wrong IR key assignments
[media] opera1: Use multimedia keys instead of an app-specific mapping
[media] dw2102: Use multimedia keys instead of an app-specific mapping
...
Fix up trivial conflicts (remove/modify and some real conflicts) in:
arch/arm/mach-omap2/devices.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/dabusb/dabusb.c
drivers/staging/dabusb/dabusb.h
drivers/staging/easycap/easycap_ioctl.c
drivers/staging/usbvideo/usbvideo.c
drivers/staging/usbvideo/vicam.c
Diffstat (limited to 'drivers/media/dvb/ngene/ngene-dvb.c')
-rw-r--r-- | drivers/media/dvb/ngene/ngene-dvb.c | 71 |
1 files changed, 70 insertions, 1 deletions
diff --git a/drivers/media/dvb/ngene/ngene-dvb.c b/drivers/media/dvb/ngene/ngene-dvb.c index 3832e5983c19..0b4943233166 100644 --- a/drivers/media/dvb/ngene/ngene-dvb.c +++ b/drivers/media/dvb/ngene/ngene-dvb.c @@ -47,6 +47,64 @@ /* COMMAND API interface ****************************************************/ /****************************************************************************/ +static ssize_t ts_write(struct file *file, const char *buf, + size_t count, loff_t *ppos) +{ + struct dvb_device *dvbdev = file->private_data; + struct ngene_channel *chan = dvbdev->priv; + struct ngene *dev = chan->dev; + + if (wait_event_interruptible(dev->tsout_rbuf.queue, + dvb_ringbuffer_free + (&dev->tsout_rbuf) >= count) < 0) + return 0; + + dvb_ringbuffer_write(&dev->tsout_rbuf, buf, count); + + return count; +} + +static ssize_t ts_read(struct file *file, char *buf, + size_t count, loff_t *ppos) +{ + struct dvb_device *dvbdev = file->private_data; + struct ngene_channel *chan = dvbdev->priv; + struct ngene *dev = chan->dev; + int left, avail; + + left = count; + while (left) { + if (wait_event_interruptible( + dev->tsin_rbuf.queue, + dvb_ringbuffer_avail(&dev->tsin_rbuf) > 0) < 0) + return -EAGAIN; + avail = dvb_ringbuffer_avail(&dev->tsin_rbuf); + if (avail > left) + avail = left; + dvb_ringbuffer_read_user(&dev->tsin_rbuf, buf, avail); + left -= avail; + buf += avail; + } + return count; +} + +static const struct file_operations ci_fops = { + .owner = THIS_MODULE, + .read = ts_read, + .write = ts_write, + .open = dvb_generic_open, + .release = dvb_generic_release, +}; + +struct dvb_device ngene_dvbdev_ci = { + .priv = 0, + .readers = -1, + .writers = -1, + .users = -1, + .fops = &ci_fops, +}; + + /****************************************************************************/ /* DVB functions and API interface ******************************************/ /****************************************************************************/ @@ -63,10 +121,21 @@ static void swap_buffer(u32 *p, u32 len) void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags) { struct ngene_channel *chan = priv; + struct ngene *dev = chan->dev; - if (chan->users > 0) + if (flags & DF_SWAP32) + swap_buffer(buf, len); + if (dev->ci.en && chan->number == 2) { + if (dvb_ringbuffer_free(&dev->tsin_rbuf) > len) { + dvb_ringbuffer_write(&dev->tsin_rbuf, buf, len); + wake_up_interruptible(&dev->tsin_rbuf.queue); + } + return 0; + } + if (chan->users > 0) { dvb_dmx_swfilter(&chan->demux, buf, len); + } return NULL; } |