diff options
Diffstat (limited to 'drivers/media/dvb/ngene/ngene-dvb.c')
| -rw-r--r-- | drivers/media/dvb/ngene/ngene-dvb.c | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/drivers/media/dvb/ngene/ngene-dvb.c b/drivers/media/dvb/ngene/ngene-dvb.c deleted file mode 100644 index fcb16a615aab..000000000000 --- a/drivers/media/dvb/ngene/ngene-dvb.c +++ /dev/null @@ -1,261 +0,0 @@ -/* - * ngene-dvb.c: nGene PCIe bridge driver - DVB functions - * - * Copyright (C) 2005-2007 Micronas - * - * Copyright (C) 2008-2009 Ralph Metzler <rjkm@metzlerbros.de> - * Modifications for new nGene firmware, - * support for EEPROM-copying, - * support for new dual DVB-S2 card prototype - * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 only, as published by the Free Software Foundation. - * - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA - * Or, point your browser to http://www.gnu.org/copyleft/gpl.html - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/poll.h> -#include <linux/io.h> -#include <asm/div64.h> -#include <linux/pci.h> -#include <linux/timer.h> -#include <linux/byteorder/generic.h> -#include <linux/firmware.h> -#include <linux/vmalloc.h> - -#include "ngene.h" - - -/****************************************************************************/ -/* 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 ******************************************/ -/****************************************************************************/ - -static void swap_buffer(u32 *p, u32 len) -{ - while (len) { - *p = swab32(*p); - p++; - len -= 4; - } -} - -/* start of filler packet */ -static u8 fill_ts[] = { 0x47, 0x1f, 0xff, 0x10, TS_FILLER }; - -/* #define DEBUG_CI_XFER */ -#ifdef DEBUG_CI_XFER -static u32 ok; -static u32 overflow; -static u32 stripped; -#endif - -void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags) -{ - struct ngene_channel *chan = priv; - struct ngene *dev = chan->dev; - - - if (flags & DF_SWAP32) - swap_buffer(buf, len); - - if (dev->ci.en && chan->number == 2) { - while (len >= 188) { - if (memcmp(buf, fill_ts, sizeof fill_ts) != 0) { - if (dvb_ringbuffer_free(&dev->tsin_rbuf) >= 188) { - dvb_ringbuffer_write(&dev->tsin_rbuf, buf, 188); - wake_up(&dev->tsin_rbuf.queue); -#ifdef DEBUG_CI_XFER - ok++; -#endif - } -#ifdef DEBUG_CI_XFER - else - overflow++; -#endif - } -#ifdef DEBUG_CI_XFER - else - stripped++; - - if (ok % 100 == 0 && overflow) - printk(KERN_WARNING "%s: ok %u overflow %u dropped %u\n", __func__, ok, overflow, stripped); -#endif - buf += 188; - len -= 188; - } - return NULL; - } - - if (chan->users > 0) - dvb_dmx_swfilter(&chan->demux, buf, len); - - return NULL; -} - -void *tsout_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags) -{ - struct ngene_channel *chan = priv; - struct ngene *dev = chan->dev; - u32 alen; - - alen = dvb_ringbuffer_avail(&dev->tsout_rbuf); - alen -= alen % 188; - - if (alen < len) - FillTSBuffer(buf + alen, len - alen, flags); - else - alen = len; - dvb_ringbuffer_read(&dev->tsout_rbuf, buf, alen); - if (flags & DF_SWAP32) - swap_buffer((u32 *)buf, alen); - wake_up_interruptible(&dev->tsout_rbuf.queue); - return buf; -} - - - -int ngene_start_feed(struct dvb_demux_feed *dvbdmxfeed) -{ - struct dvb_demux *dvbdmx = dvbdmxfeed->demux; - struct ngene_channel *chan = dvbdmx->priv; - - if (chan->users == 0) { - if (!chan->dev->cmd_timeout_workaround || !chan->running) - set_transfer(chan, 1); - } - - return ++chan->users; -} - -int ngene_stop_feed(struct dvb_demux_feed *dvbdmxfeed) -{ - struct dvb_demux *dvbdmx = dvbdmxfeed->demux; - struct ngene_channel *chan = dvbdmx->priv; - - if (--chan->users) - return chan->users; - - if (!chan->dev->cmd_timeout_workaround) - set_transfer(chan, 0); - - return 0; -} - -int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id, - int (*start_feed)(struct dvb_demux_feed *), - int (*stop_feed)(struct dvb_demux_feed *), - void *priv) -{ - dvbdemux->priv = priv; - - dvbdemux->filternum = 256; - dvbdemux->feednum = 256; - dvbdemux->start_feed = start_feed; - dvbdemux->stop_feed = stop_feed; - dvbdemux->write_to_decoder = NULL; - dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | - DMX_SECTION_FILTERING | - DMX_MEMORY_BASED_FILTERING); - return dvb_dmx_init(dvbdemux); -} - -int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev, - struct dvb_demux *dvbdemux, - struct dmx_frontend *hw_frontend, - struct dmx_frontend *mem_frontend, - struct dvb_adapter *dvb_adapter) -{ - int ret; - - dmxdev->filternum = 256; - dmxdev->demux = &dvbdemux->dmx; - dmxdev->capabilities = 0; - ret = dvb_dmxdev_init(dmxdev, dvb_adapter); - if (ret < 0) - return ret; - - hw_frontend->source = DMX_FRONTEND_0; - dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend); - mem_frontend->source = DMX_MEMORY_FE; - dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend); - return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend); -} |