| /* 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__ */ |
