/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator * LGS8913, LGS8GL5, LGS8G75 * experimental support LGS8G42, LGS8G52 * * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com> * Copyright (C) 2008 Sirius International (Hong Kong) Limited * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5) */ #ifndef __LGS8GXX_H__ #define __LGS8GXX_H__ #include <linux/dvb/frontend.h> #include <linux/i2c.h> #define LGS8GXX_PROD_LGS8913 0 #define LGS8GXX_PROD_LGS8GL5 1 #define LGS8GXX_PROD_LGS8G42 3 #define LGS8GXX_PROD_LGS8G52 4 #define LGS8GXX_PROD_LGS8G54 5 #define LGS8GXX_PROD_LGS8G75 6 struct lgs8gxx_config { /* product type */ u8 prod; /* the demodulator's i2c address */ u8 demod_address; /* parallel or serial transport stream */ u8 serial_ts; /* transport stream polarity*/ u8 ts_clk_pol; /* transport stream clock gated by ts_valid */ u8 ts_clk_gated; /* A/D Clock frequency */ u32 if_clk_freq; /* in kHz */ /* IF frequency */ u32 if_freq; /* in kHz */ /*Use External ADC*/ u8 ext_adc; /*External ADC output two's complement*/ u8 adc_signed; /*Sample IF data at falling edge of IF_CLK*/ u8 if_neg_edge; /*IF use Negative center frequency*/ u8 if_neg_center; /*8G75 internal ADC input range selection*/ /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/ u8 adc_vpp; /* slave address and configuration of the tuner */ u8 tuner_address; }; #if IS_REACHABLE(CONFIG_DVB_LGS8GXX) extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, struct i2c_adapter *i2c); #else static inline struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, struct i2c_adapter *i2c) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif /* CONFIG_DVB_LGS8GXX */ #endif /* __LGS8GXX_H__ */