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Diffstat (limited to 'drivers/media/common/tuners/tda827x.h')
-rw-r--r--drivers/media/common/tuners/tda827x.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/media/common/tuners/tda827x.h b/drivers/media/common/tuners/tda827x.h
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+++ b/drivers/media/common/tuners/tda827x.h
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1 /*
2 DVB Driver for Philips tda827x / tda827xa Silicon tuners
3
4 (c) 2005 Hartmut Hackmann
5 (c) 2007 Michael Krufky
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 */
23
24#ifndef __DVB_TDA827X_H__
25#define __DVB_TDA827X_H__
26
27#include <linux/i2c.h>
28#include "dvb_frontend.h"
29
30struct tda827x_config
31{
32 /* saa7134 - provided callbacks */
33 int (*init) (struct dvb_frontend *fe);
34 int (*sleep) (struct dvb_frontend *fe);
35
36 /* interface to tda829x driver */
37 unsigned int config;
38 int switch_addr;
39 int (*tuner_callback) (void *dev, int command, int arg);
40
41 void (*agcf)(struct dvb_frontend *fe);
42};
43
44
45/**
46 * Attach a tda827x tuner to the supplied frontend structure.
47 *
48 * @param fe Frontend to attach to.
49 * @param addr i2c address of the tuner.
50 * @param i2c i2c adapter to use.
51 * @param cfg optional callback function pointers.
52 * @return FE pointer on success, NULL on failure.
53 */
54#if defined(CONFIG_DVB_TDA827X) || (defined(CONFIG_DVB_TDA827X_MODULE) && defined(MODULE))
55extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr,
56 struct i2c_adapter *i2c,
57 struct tda827x_config *cfg);
58#else
59static inline struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe,
60 int addr,
61 struct i2c_adapter *i2c,
62 struct tda827x_config *cfg)
63{
64 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
65 return NULL;
66}
67#endif // CONFIG_DVB_TDA827X
68
69#endif // __DVB_TDA827X_H__