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21c28582 AQ |
1 | /* |
2 | * isl6421.h - driver for lnb supply and control ic ISL6421 | |
3 | * | |
4 | * Copyright (C) 2006 Andrew de Quincey | |
5 | * Copyright (C) 2006 Oliver Endriss | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version 2 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
23 | * | |
24 | * | |
991ce92f | 25 | * the project's page is at https://linuxtv.org |
21c28582 AQ |
26 | */ |
27 | ||
28 | #ifndef _ISL6421_H | |
29 | #define _ISL6421_H | |
30 | ||
31 | #include <linux/dvb/frontend.h> | |
32 | ||
33 | /* system register bits */ | |
34 | #define ISL6421_OLF1 0x01 | |
35 | #define ISL6421_EN1 0x02 | |
36 | #define ISL6421_VSEL1 0x04 | |
37 | #define ISL6421_LLC1 0x08 | |
38 | #define ISL6421_ENT1 0x10 | |
39 | #define ISL6421_ISEL1 0x20 | |
40 | #define ISL6421_DCL 0x40 | |
41 | ||
9b174527 | 42 | #if IS_REACHABLE(CONFIG_DVB_ISL6421) |
21c28582 | 43 | /* override_set and override_clear control which system register bits (above) to always set & clear */ |
13fef933 | 44 | extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr, |
48a8a03b | 45 | u8 override_set, u8 override_clear, bool override_tone); |
102a342b AQ |
46 | #else |
47 | static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr, | |
48a8a03b | 48 | u8 override_set, u8 override_clear, bool override_tone) |
102a342b | 49 | { |
271ddbf7 | 50 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
102a342b AQ |
51 | return NULL; |
52 | } | |
53 | #endif // CONFIG_DVB_ISL6421 | |
21c28582 AQ |
54 | |
55 | #endif |