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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 19:50:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 19:50:13 +0300
commit76d21c563569bcea6bc67d65cc2c460cff643058 (patch)
tree4dd2c9846ea7838077099646418978e354df1680 /drivers/media/dvb/ngene/ngene-dvb.c
parent6e50e9f9f4a8277b4d76de417ca77cf3921bd524 (diff)
parent472af2b05bdefcaee7e754e22cbf131110017ad6 (diff)
downloadlinux-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.c71
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;
}