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a0c7056f | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
21c28582 AQ |
2 | /* |
3 | * isl6421.h - driver for lnb supply and control ic ISL6421 | |
4 | * | |
5 | * Copyright (C) 2006 Andrew de Quincey | |
6 | * Copyright (C) 2006 Oliver Endriss | |
7 | * | |
991ce92f | 8 | * the project's page is at https://linuxtv.org |
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9 | */ |
10 | ||
11 | #ifndef _ISL6421_H | |
12 | #define _ISL6421_H | |
13 | ||
14 | #include <linux/dvb/frontend.h> | |
15 | ||
16 | /* system register bits */ | |
17 | #define ISL6421_OLF1 0x01 | |
18 | #define ISL6421_EN1 0x02 | |
19 | #define ISL6421_VSEL1 0x04 | |
20 | #define ISL6421_LLC1 0x08 | |
21 | #define ISL6421_ENT1 0x10 | |
22 | #define ISL6421_ISEL1 0x20 | |
23 | #define ISL6421_DCL 0x40 | |
24 | ||
9b174527 | 25 | #if IS_REACHABLE(CONFIG_DVB_ISL6421) |
21c28582 | 26 | /* override_set and override_clear control which system register bits (above) to always set & clear */ |
13fef933 | 27 | extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr, |
48a8a03b | 28 | u8 override_set, u8 override_clear, bool override_tone); |
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29 | #else |
30 | static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr, | |
48a8a03b | 31 | u8 override_set, u8 override_clear, bool override_tone) |
102a342b | 32 | { |
271ddbf7 | 33 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
102a342b AQ |
34 | return NULL; |
35 | } | |
36 | #endif // CONFIG_DVB_ISL6421 | |
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37 | |
38 | #endif |