2 * ngene-dvb.c: nGene PCIe bridge driver - DVB functions
4 * Copyright (C) 2005-2007 Micronas
6 * Copyright (C) 2008-2009 Ralph Metzler <rjkm@metzlerbros.de>
7 * Modifications for new nGene firmware,
8 * support for EEPROM-copying,
9 * support for new dual DVB-S2 card prototype
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * version 2 only, as published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
27 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/delay.h>
33 #include <linux/slab.h>
34 #include <linux/poll.h>
36 #include <asm/div64.h>
37 #include <linux/pci.h>
38 #include <linux/smp_lock.h>
39 #include <linux/timer.h>
40 #include <linux/version.h>
41 #include <linux/byteorder/generic.h>
42 #include <linux/firmware.h>
43 #include <linux/vmalloc.h>
48 /****************************************************************************/
49 /* COMMAND API interface ****************************************************/
50 /****************************************************************************/
52 /****************************************************************************/
53 /* DVB functions and API interface ******************************************/
54 /****************************************************************************/
56 static void swap_buffer(u32 *p, u32 len)
65 void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
67 struct ngene_channel *chan = priv;
71 dvb_dmx_swfilter(&chan->demux, buf, len);
75 u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 };
77 void *tsout_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
79 struct ngene_channel *chan = priv;
80 struct ngene *dev = chan->dev;
83 alen = dvb_ringbuffer_avail(&dev->tsout_rbuf);
87 FillTSBuffer(buf + alen, len - alen, flags);
90 dvb_ringbuffer_read(&dev->tsout_rbuf, buf, alen);
91 if (flags & DF_SWAP32)
92 swap_buffer((u32 *)buf, alen);
93 wake_up_interruptible(&dev->tsout_rbuf.queue);
99 int ngene_start_feed(struct dvb_demux_feed *dvbdmxfeed)
101 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
102 struct ngene_channel *chan = dvbdmx->priv;
104 if (chan->users == 0) {
105 if (!chan->dev->cmd_timeout_workaround || !chan->running)
106 set_transfer(chan, 1);
109 return ++chan->users;
112 int ngene_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
114 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
115 struct ngene_channel *chan = dvbdmx->priv;
120 if (!chan->dev->cmd_timeout_workaround)
121 set_transfer(chan, 0);
126 int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
127 int (*start_feed)(struct dvb_demux_feed *),
128 int (*stop_feed)(struct dvb_demux_feed *),
131 dvbdemux->priv = priv;
133 dvbdemux->filternum = 256;
134 dvbdemux->feednum = 256;
135 dvbdemux->start_feed = start_feed;
136 dvbdemux->stop_feed = stop_feed;
137 dvbdemux->write_to_decoder = NULL;
138 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
139 DMX_SECTION_FILTERING |
140 DMX_MEMORY_BASED_FILTERING);
141 return dvb_dmx_init(dvbdemux);
144 int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
145 struct dvb_demux *dvbdemux,
146 struct dmx_frontend *hw_frontend,
147 struct dmx_frontend *mem_frontend,
148 struct dvb_adapter *dvb_adapter)
152 dmxdev->filternum = 256;
153 dmxdev->demux = &dvbdemux->dmx;
154 dmxdev->capabilities = 0;
155 ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
159 hw_frontend->source = DMX_FRONTEND_0;
160 dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
161 mem_frontend->source = DMX_MEMORY_FE;
162 dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
163 return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);