Fix V4L/DVB core help messages
[linux-2.6-block.git] / drivers / media / common / tuners / xc5000.h
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1/*
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 {
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31 u8 i2c_address;
32 u32 if_khz;
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33
34 /* For each bridge framework, when it attaches either analog or digital,
35 * it has to store a reference back to its _core equivalent structure,
36 * so that it can service the hardware by steering gpio's etc.
37 * Each bridge implementation is different so cast priv accordingly.
38 * The xc5000 driver cares not for this value, other than ensuring
39 * it's passed back to a bridge during tuner_callback().
40 */
41 void *priv;
42 int (*tuner_callback) (void *priv, int command, int arg);
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43};
44
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45/* xc5000 callback command */
46#define XC5000_TUNER_RESET 0
47
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48#if defined(CONFIG_DVB_TUNER_XC5000) || \
49 (defined(CONFIG_DVB_TUNER_XC5000_MODULE) && defined(MODULE))
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50extern struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe,
51 struct i2c_adapter *i2c,
52 struct xc5000_config *cfg);
53#else
54static inline struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe,
55 struct i2c_adapter *i2c,
fb6d8e2c 56 struct xc5000_config *cfg)
aacb9d31 57{
271ddbf7 58 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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59 return NULL;
60}
61#endif // CONFIG_DVB_TUNER_XC5000
62
63#endif // __XC5000_H__