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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> | |
fada1935 | 28 | #include <media/dvb_frontend.h> |
1bacb2df | 29 | #include "tda8290.h" |
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30 | |
31 | struct 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; |
6e6a8b5a | 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 | */ | |
9b174527 | 54 | #if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA827X) |
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55 | extern struct dvb_frontend* tda827x_attach(struct dvb_frontend *fe, int addr, |
56 | struct i2c_adapter *i2c, | |
57 | struct tda827x_config *cfg); | |
58 | #else | |
59 | static 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__ |