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1da177e4 LT |
1 | /* |
2 | VES1820 - Single Chip Cable Channel Receiver driver module | |
3 | ||
4 | Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> | |
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 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #ifndef VES1820_H | |
22 | #define VES1820_H | |
23 | ||
24 | #include <linux/dvb/frontend.h> | |
25 | ||
26 | #define VES1820_SELAGC_PWM 0 | |
27 | #define VES1820_SELAGC_SIGNAMPERR 1 | |
28 | ||
29 | struct ves1820_config | |
30 | { | |
31 | /* the demodulator's i2c address */ | |
32 | u8 demod_address; | |
33 | ||
34 | /* value of XIN to use */ | |
35 | u32 xin; | |
36 | ||
37 | /* does inversion need inverted? */ | |
38 | u8 invert:1; | |
39 | ||
40 | /* SELAGC control */ | |
41 | u8 selagc:1; | |
1da177e4 LT |
42 | }; |
43 | ||
9b174527 | 44 | #if IS_REACHABLE(CONFIG_DVB_VES1820) |
1da177e4 LT |
45 | extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, |
46 | struct i2c_adapter* i2c, u8 pwm); | |
102a342b AQ |
47 | #else |
48 | static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, | |
49 | struct i2c_adapter* i2c, u8 pwm) | |
50 | { | |
271ddbf7 | 51 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
102a342b AQ |
52 | return NULL; |
53 | } | |
54 | #endif // CONFIG_DVB_VES1820 | |
1da177e4 LT |
55 | |
56 | #endif // VES1820_H |