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/timer.h>
39 #include <linux/byteorder/generic.h>
40 #include <linux/firmware.h>
41 #include <linux/vmalloc.h>
46 /****************************************************************************/
47 /* COMMAND API interface ****************************************************/
48 /****************************************************************************/
50 /****************************************************************************/
51 /* DVB functions and API interface ******************************************/
52 /****************************************************************************/
54 static void swap_buffer(u32
*p
, u32 len
)
63 void *tsin_exchange(void *priv
, void *buf
, u32 len
, u32 clock
, u32 flags
)
65 struct ngene_channel
*chan
= priv
;
69 dvb_dmx_swfilter(&chan
->demux
, buf
, len
);
73 u8 fill_ts
[188] = { 0x47, 0x1f, 0xff, 0x10 };
75 void *tsout_exchange(void *priv
, void *buf
, u32 len
, u32 clock
, u32 flags
)
77 struct ngene_channel
*chan
= priv
;
78 struct ngene
*dev
= chan
->dev
;
81 alen
= dvb_ringbuffer_avail(&dev
->tsout_rbuf
);
85 FillTSBuffer(buf
+ alen
, len
- alen
, flags
);
88 dvb_ringbuffer_read(&dev
->tsout_rbuf
, buf
, alen
);
89 if (flags
& DF_SWAP32
)
90 swap_buffer((u32
*)buf
, alen
);
91 wake_up_interruptible(&dev
->tsout_rbuf
.queue
);
97 int ngene_start_feed(struct dvb_demux_feed
*dvbdmxfeed
)
99 struct dvb_demux
*dvbdmx
= dvbdmxfeed
->demux
;
100 struct ngene_channel
*chan
= dvbdmx
->priv
;
102 if (chan
->users
== 0) {
103 if (!chan
->dev
->cmd_timeout_workaround
|| !chan
->running
)
104 set_transfer(chan
, 1);
107 return ++chan
->users
;
110 int ngene_stop_feed(struct dvb_demux_feed
*dvbdmxfeed
)
112 struct dvb_demux
*dvbdmx
= dvbdmxfeed
->demux
;
113 struct ngene_channel
*chan
= dvbdmx
->priv
;
118 if (!chan
->dev
->cmd_timeout_workaround
)
119 set_transfer(chan
, 0);
124 int my_dvb_dmx_ts_card_init(struct dvb_demux
*dvbdemux
, char *id
,
125 int (*start_feed
)(struct dvb_demux_feed
*),
126 int (*stop_feed
)(struct dvb_demux_feed
*),
129 dvbdemux
->priv
= priv
;
131 dvbdemux
->filternum
= 256;
132 dvbdemux
->feednum
= 256;
133 dvbdemux
->start_feed
= start_feed
;
134 dvbdemux
->stop_feed
= stop_feed
;
135 dvbdemux
->write_to_decoder
= NULL
;
136 dvbdemux
->dmx
.capabilities
= (DMX_TS_FILTERING
|
137 DMX_SECTION_FILTERING
|
138 DMX_MEMORY_BASED_FILTERING
);
139 return dvb_dmx_init(dvbdemux
);
142 int my_dvb_dmxdev_ts_card_init(struct dmxdev
*dmxdev
,
143 struct dvb_demux
*dvbdemux
,
144 struct dmx_frontend
*hw_frontend
,
145 struct dmx_frontend
*mem_frontend
,
146 struct dvb_adapter
*dvb_adapter
)
150 dmxdev
->filternum
= 256;
151 dmxdev
->demux
= &dvbdemux
->dmx
;
152 dmxdev
->capabilities
= 0;
153 ret
= dvb_dmxdev_init(dmxdev
, dvb_adapter
);
157 hw_frontend
->source
= DMX_FRONTEND_0
;
158 dvbdemux
->dmx
.add_frontend(&dvbdemux
->dmx
, hw_frontend
);
159 mem_frontend
->source
= DMX_MEMORY_FE
;
160 dvbdemux
->dmx
.add_frontend(&dvbdemux
->dmx
, mem_frontend
);
161 return dvbdemux
->dmx
.connect_frontend(&dvbdemux
->dmx
, hw_frontend
);