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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 VES1820 - Single Chip Cable Channel Receiver driver module4 5 Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>6 7*/8 9#ifndef VES1820_H10#define VES1820_H11 12#include <linux/dvb/frontend.h>13 14#define VES1820_SELAGC_PWM 015#define VES1820_SELAGC_SIGNAMPERR 116 17struct ves1820_config18{19 /* the demodulator's i2c address */20 u8 demod_address;21 22 /* value of XIN to use */23 u32 xin;24 25 /* does inversion need inverted? */26 u8 invert:1;27 28 /* SELAGC control */29 u8 selagc:1;30};31 32#if IS_REACHABLE(CONFIG_DVB_VES1820)33extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,34 struct i2c_adapter* i2c, u8 pwm);35#else36static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,37 struct i2c_adapter* i2c, u8 pwm)38{39 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);40 return NULL;41}42#endif // CONFIG_DVB_VES182043 44#endif // VES1820_H45