| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | VES1820 - Single Chip Cable Channel Receiver driver module |
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| 4 | |
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| 5 | Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> |
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| 6 | |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef VES1820_H |
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| 10 | #define VES1820_H |
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| 11 | |
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| 12 | #include <linux/dvb/frontend.h> |
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| 13 | |
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| 14 | #define VES1820_SELAGC_PWM 0 |
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| 15 | #define VES1820_SELAGC_SIGNAMPERR 1 |
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| 16 | |
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| 17 | struct ves1820_config |
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| 18 | { |
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| 19 | /* the demodulator's i2c address */ |
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| 20 | u8 demod_address; |
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| 21 | |
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| 22 | /* value of XIN to use */ |
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| 23 | u32 xin; |
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| 24 | |
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| 25 | /* does inversion need inverted? */ |
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| 26 | u8 invert:1; |
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| 27 | |
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| 28 | /* SELAGC control */ |
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| 29 | u8 selagc:1; |
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| 30 | }; |
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| 31 | |
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| 32 | #if IS_REACHABLE(CONFIG_DVB_VES1820) |
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| 33 | extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, |
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| 34 | struct i2c_adapter* i2c, u8 pwm); |
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| 35 | #else |
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| 36 | static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, |
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| 37 | struct i2c_adapter* i2c, u8 pwm) |
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| 38 | { |
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| 39 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
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| 40 | return NULL; |
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| 41 | } |
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| 42 | #endif // CONFIG_DVB_VES1820 |
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| 43 | |
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| 44 | #endif // VES1820_H |
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| 45 | |
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