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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator4 * LGS8913, LGS8GL5, LGS8G755 * experimental support LGS8G42, LGS8G526 *7 * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>8 * Copyright (C) 2008 Sirius International (Hong Kong) Limited9 * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)10 */11 12#ifndef __LGS8GXX_H__13#define __LGS8GXX_H__14 15#include <linux/dvb/frontend.h>16#include <linux/i2c.h>17 18#define LGS8GXX_PROD_LGS8913 019#define LGS8GXX_PROD_LGS8GL5 120#define LGS8GXX_PROD_LGS8G42 321#define LGS8GXX_PROD_LGS8G52 422#define LGS8GXX_PROD_LGS8G54 523#define LGS8GXX_PROD_LGS8G75 624 25struct lgs8gxx_config {26 27 /* product type */28 u8 prod;29 30 /* the demodulator's i2c address */31 u8 demod_address;32 33 /* parallel or serial transport stream */34 u8 serial_ts;35 36 /* transport stream polarity*/37 u8 ts_clk_pol;38 39 /* transport stream clock gated by ts_valid */40 u8 ts_clk_gated;41 42 /* A/D Clock frequency */43 u32 if_clk_freq; /* in kHz */44 45 /* IF frequency */46 u32 if_freq; /* in kHz */47 48 /*Use External ADC*/49 u8 ext_adc;50 51 /*External ADC output two's complement*/52 u8 adc_signed;53 54 /*Sample IF data at falling edge of IF_CLK*/55 u8 if_neg_edge;56 57 /*IF use Negative center frequency*/58 u8 if_neg_center;59 60 /*8G75 internal ADC input range selection*/61 /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/62 u8 adc_vpp;63 64 /* slave address and configuration of the tuner */65 u8 tuner_address;66};67 68#if IS_REACHABLE(CONFIG_DVB_LGS8GXX)69extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,70 struct i2c_adapter *i2c);71#else72static inline73struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,74 struct i2c_adapter *i2c) {75 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);76 return NULL;77}78#endif /* CONFIG_DVB_LGS8GXX */79 80#endif /* __LGS8GXX_H__ */81