| /* |
| * 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/smp_lock.h> |
| #include <linux/timer.h> |
| #include <linux/version.h> |
| #include <linux/byteorder/generic.h> |
| #include <linux/firmware.h> |
| #include <linux/vmalloc.h> |
| |
| #include "ngene.h" |
| |
| |
| /****************************************************************************/ |
| /* COMMAND API interface ****************************************************/ |
| /****************************************************************************/ |
| |
| /****************************************************************************/ |
| /* DVB functions and API interface ******************************************/ |
| /****************************************************************************/ |
| |
| static void swap_buffer(u32 *p, u32 len) |
| { |
| while (len) { |
| *p = swab32(*p); |
| p++; |
| len -= 4; |
| } |
| } |
| |
| void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags) |
| { |
| struct ngene_channel *chan = priv; |
| |
| |
| if (chan->users > 0) |
| dvb_dmx_swfilter(&chan->demux, buf, len); |
| return NULL; |
| } |
| |
| u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 }; |
| |
| 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); |
| } |