1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 Driver for VES1893 and VES1993 QPSK Demodulators 4 5 Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> 6 Copyright (C) 2001 Ronny Strutz <3des@elitedvb.de> 7 Copyright (C) 2002 Dennis Noermann <dennis.noermann@noernet.de> 8 Copyright (C) 2002-2003 Andreas Oberritter <obi@linuxtv.org> 9 10 11 */ 12 13 #ifndef VES1X93_H 14 #define VES1X93_H 15 16 #include <linux/dvb/frontend.h> 17 18 struct ves1x93_config 19 { 20 /* the demodulator's i2c address */ 21 u8 demod_address; 22 23 /* value of XIN to use */ 24 u32 xin; 25 26 /* should PWM be inverted? */ 27 u8 invert_pwm:1; 28 }; 29 30 #if IS_REACHABLE(CONFIG_DVB_VES1X93) 31 extern struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config, 32 struct i2c_adapter* i2c); 33 #else 34 static inline struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config, 35 struct i2c_adapter* i2c) 36 { 37 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 38 return NULL; 39 } 40 #endif // CONFIG_DVB_VES1X93 41 42 #endif // VES1X93_H 43