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Steven Tothaacb9d32007-12-18 01:55:51 -03001/*
2 * Driver for Xceive XC5000 "QAM/8VSB single chip tuner"
3 *
4 * Copyright (c) 2007 Steven Toth <stoth@hauppauge.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#ifndef __XC5000_H__
23#define __XC5000_H__
24
25#include <linux/firmware.h>
26
27struct dvb_frontend;
28struct i2c_adapter;
29
30struct xc5000_config {
Steven Toth27c685a2008-01-05 16:50:14 -030031 u8 i2c_address;
32 u32 if_khz;
Steven Toth73c993a2008-01-05 17:08:05 -030033
Steven Toth73c993a2008-01-05 17:08:05 -030034 int (*tuner_callback) (void *priv, int command, int arg);
Steven Tothaacb9d32007-12-18 01:55:51 -030035};
36
Steven Toth27c685a2008-01-05 16:50:14 -030037/* xc5000 callback command */
38#define XC5000_TUNER_RESET 0
39
Michael Krufky48723542008-05-10 14:34:09 -030040/* For each bridge framework, when it attaches either analog or digital,
41 * it has to store a reference back to its _core equivalent structure,
42 * so that it can service the hardware by steering gpio's etc.
43 * Each bridge implementation is different so cast devptr accordingly.
44 * The xc5000 driver cares not for this value, other than ensuring
45 * it's passed back to a bridge during tuner_callback().
46 */
47
Mauro Carvalho Chehab149ef722008-04-29 21:38:46 -030048#if defined(CONFIG_MEDIA_TUNER_XC5000) || \
49 (defined(CONFIG_MEDIA_TUNER_XC5000_MODULE) && defined(MODULE))
Steven Tothaacb9d32007-12-18 01:55:51 -030050extern struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe,
51 struct i2c_adapter *i2c,
Michael Krufky48723542008-05-10 14:34:09 -030052 struct xc5000_config *cfg,
53 void *devptr);
Steven Tothaacb9d32007-12-18 01:55:51 -030054#else
55static inline struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe,
56 struct i2c_adapter *i2c,
Michael Krufky48723542008-05-10 14:34:09 -030057 struct xc5000_config *cfg,
58 void *devptr)
Steven Tothaacb9d32007-12-18 01:55:51 -030059{
Harvey Harrison271ddbf2008-04-08 23:20:00 -030060 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
Steven Tothaacb9d32007-12-18 01:55:51 -030061 return NULL;
62}
Mauro Carvalho Chehab149ef722008-04-29 21:38:46 -030063#endif // CONFIG_MEDIA_TUNER_XC5000
Steven Tothaacb9d32007-12-18 01:55:51 -030064
65#endif // __XC5000_H__