1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun VES1820 - Single Chip Cable Channel Receiver driver module 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef VES1820_H 10*4882a593Smuzhiyun #define VES1820_H 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/dvb/frontend.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define VES1820_SELAGC_PWM 0 15*4882a593Smuzhiyun #define VES1820_SELAGC_SIGNAMPERR 1 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun struct ves1820_config 18*4882a593Smuzhiyun { 19*4882a593Smuzhiyun /* the demodulator's i2c address */ 20*4882a593Smuzhiyun u8 demod_address; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun /* value of XIN to use */ 23*4882a593Smuzhiyun u32 xin; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /* does inversion need inverted? */ 26*4882a593Smuzhiyun u8 invert:1; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* SELAGC control */ 29*4882a593Smuzhiyun u8 selagc:1; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_VES1820) 33*4882a593Smuzhiyun extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, 34*4882a593Smuzhiyun struct i2c_adapter* i2c, u8 pwm); 35*4882a593Smuzhiyun #else ves1820_attach(const struct ves1820_config * config,struct i2c_adapter * i2c,u8 pwm)36*4882a593Smuzhiyunstatic inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, 37*4882a593Smuzhiyun struct i2c_adapter* i2c, u8 pwm) 38*4882a593Smuzhiyun { 39*4882a593Smuzhiyun printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 40*4882a593Smuzhiyun return NULL; 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun #endif // CONFIG_DVB_VES1820 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #endif // VES1820_H 45