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+/*
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+ * ngene-dvb.c: nGene PCIe bridge driver - DVB functions
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+ *
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+ * Copyright (C) 2005-2007 Micronas
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+ *
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+ * Copyright (C) 2008-2009 Ralph Metzler <rjkm@metzlerbros.de>
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+ * Modifications for new nGene firmware,
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+ * support for EEPROM-copying,
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+ * support for new dual DVB-S2 card prototype
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+ *
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * version 2 only, as published by the Free Software Foundation.
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+ *
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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+ * 02110-1301, USA
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+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/init.h>
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+#include <linux/delay.h>
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+#include <linux/slab.h>
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+#include <linux/poll.h>
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+#include <linux/io.h>
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+#include <asm/div64.h>
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+#include <linux/pci.h>
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+#include <linux/smp_lock.h>
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+#include <linux/timer.h>
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+#include <linux/version.h>
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+#include <linux/byteorder/generic.h>
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+#include <linux/firmware.h>
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+#include <linux/vmalloc.h>
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+
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+#include "ngene.h"
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+
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+#define COMMAND_TIMEOUT_WORKAROUND
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+
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+
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+/****************************************************************************/
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+/* COMMAND API interface ****************************************************/
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+/****************************************************************************/
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+
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+/****************************************************************************/
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+/* DVB functions and API interface ******************************************/
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+/****************************************************************************/
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+
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+static void swap_buffer(u32 *p, u32 len)
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+{
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+ while (len) {
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+ *p = swab32(*p);
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+ p++;
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+ len -= 4;
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+ }
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+}
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+
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+void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
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+{
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+ struct ngene_channel *chan = priv;
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+
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+
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+#ifdef COMMAND_TIMEOUT_WORKAROUND
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+ if (chan->users > 0)
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+#endif
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+ dvb_dmx_swfilter(&chan->demux, buf, len);
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+ return NULL;
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+}
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+
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+u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 };
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+
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+void *tsout_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
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+{
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+ struct ngene_channel *chan = priv;
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+ struct ngene *dev = chan->dev;
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+ u32 alen;
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+
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+ alen = dvb_ringbuffer_avail(&dev->tsout_rbuf);
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+ alen -= alen % 188;
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+
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+ if (alen < len)
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+ FillTSBuffer(buf + alen, len - alen, flags);
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+ else
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+ alen = len;
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+ dvb_ringbuffer_read(&dev->tsout_rbuf, buf, alen);
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+ if (flags & DF_SWAP32)
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+ swap_buffer((u32 *)buf, alen);
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+ wake_up_interruptible(&dev->tsout_rbuf.queue);
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+ return buf;
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+}
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+
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+
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+
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+int ngene_start_feed(struct dvb_demux_feed *dvbdmxfeed)
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+{
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+ struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
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+ struct ngene_channel *chan = dvbdmx->priv;
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+
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+ if (chan->users == 0) {
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+#ifdef COMMAND_TIMEOUT_WORKAROUND
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+ if (!chan->running)
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+#endif
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+ set_transfer(chan, 1);
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+ /* msleep(10); */
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+ }
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+
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+ return ++chan->users;
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+}
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+
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+int ngene_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
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+{
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+ struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
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+ struct ngene_channel *chan = dvbdmx->priv;
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+
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+ if (--chan->users)
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+ return chan->users;
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+
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+#ifndef COMMAND_TIMEOUT_WORKAROUND
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+ set_transfer(chan, 0);
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+#endif
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+
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+ return 0;
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+}
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+
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+int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
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+ int (*start_feed)(struct dvb_demux_feed *),
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+ int (*stop_feed)(struct dvb_demux_feed *),
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+ void *priv)
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+{
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+ dvbdemux->priv = priv;
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+
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+ dvbdemux->filternum = 256;
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+ dvbdemux->feednum = 256;
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+ dvbdemux->start_feed = start_feed;
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+ dvbdemux->stop_feed = stop_feed;
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+ dvbdemux->write_to_decoder = NULL;
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+ dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
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+ DMX_SECTION_FILTERING |
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+ DMX_MEMORY_BASED_FILTERING);
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+ return dvb_dmx_init(dvbdemux);
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+}
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+
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+int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
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+ struct dvb_demux *dvbdemux,
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+ struct dmx_frontend *hw_frontend,
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+ struct dmx_frontend *mem_frontend,
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+ struct dvb_adapter *dvb_adapter)
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+{
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+ int ret;
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+
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+ dmxdev->filternum = 256;
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+ dmxdev->demux = &dvbdemux->dmx;
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+ dmxdev->capabilities = 0;
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+ ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
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+ if (ret < 0)
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+ return ret;
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+
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+ hw_frontend->source = DMX_FRONTEND_0;
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+ dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
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+ mem_frontend->source = DMX_MEMORY_FE;
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+ dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
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+ return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
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+}
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Devin Heitmueller