Merge tag 'v3.10.55' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / 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"
1bacb2df 29#include "tda8290.h"
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30
31struct tda827x_config
32{
746d9732 33 /* saa7134 - provided callbacks */
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34 int (*init) (struct dvb_frontend *fe);
35 int (*sleep) (struct dvb_frontend *fe);
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36
37 /* interface to tda829x driver */
1bacb2df 38 enum tda8290_lna config;
7bff4b4d 39 int switch_addr;
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40
41 void (*agcf)(struct dvb_frontend *fe);
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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 */
7b34be71 54#if IS_ENABLED(CONFIG_MEDIA_TUNER_TDA827X)
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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{
271ddbf7 64 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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65 return NULL;
66}
149ef72d 67#endif // CONFIG_MEDIA_TUNER_TDA827X
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68
69#endif // __DVB_TDA827X_H__