| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator |
| 3 | * LGS8913, LGS8GL5, LGS8G75 |
| 4 | * experimental support LGS8G42, LGS8G52 |
| 5 | * |
| 6 | * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com> |
| 7 | * Copyright (C) 2008 Sirius International (Hong Kong) Limited |
| 8 | * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5) |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #ifndef __LGS8GXX_H__ |
| 23 | #define __LGS8GXX_H__ |
| 24 | |
| 25 | #include <linux/dvb/frontend.h> |
| 26 | #include <linux/i2c.h> |
| 27 | |
| 28 | #define LGS8GXX_PROD_LGS8913 0 |
| 29 | #define LGS8GXX_PROD_LGS8GL5 1 |
| 30 | #define LGS8GXX_PROD_LGS8G42 3 |
| 31 | #define LGS8GXX_PROD_LGS8G52 4 |
| 32 | #define LGS8GXX_PROD_LGS8G54 5 |
| 33 | #define LGS8GXX_PROD_LGS8G75 6 |
| 34 | |
| 35 | struct lgs8gxx_config { |
| 36 | |
| 37 | /* product type */ |
| 38 | u8 prod; |
| 39 | |
| 40 | /* the demodulator's i2c address */ |
| 41 | u8 demod_address; |
| 42 | |
| 43 | /* parallel or serial transport stream */ |
| 44 | u8 serial_ts; |
| 45 | |
| 46 | /* transport stream polarity*/ |
| 47 | u8 ts_clk_pol; |
| 48 | |
| 49 | /* transport stream clock gated by ts_valid */ |
| 50 | u8 ts_clk_gated; |
| 51 | |
| 52 | /* A/D Clock frequency */ |
| 53 | u32 if_clk_freq; /* in kHz */ |
| 54 | |
| 55 | /* IF frequency */ |
| 56 | u32 if_freq; /* in kHz */ |
| 57 | |
| 58 | /*Use External ADC*/ |
| 59 | u8 ext_adc; |
| 60 | |
| 61 | /*External ADC output two's complement*/ |
| 62 | u8 adc_signed; |
| 63 | |
| 64 | /*Sample IF data at falling edge of IF_CLK*/ |
| 65 | u8 if_neg_edge; |
| 66 | |
| 67 | /*IF use Negative center frequency*/ |
| 68 | u8 if_neg_center; |
| 69 | |
| 70 | /*8G75 internal ADC input range selection*/ |
| 71 | /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/ |
| 72 | u8 adc_vpp; |
| 73 | |
| 74 | /* slave address and configuration of the tuner */ |
| 75 | u8 tuner_address; |
| 76 | }; |
| 77 | |
| 78 | #if IS_REACHABLE(CONFIG_DVB_LGS8GXX) |
| 79 | extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, |
| 80 | struct i2c_adapter *i2c); |
| 81 | #else |
| 82 | static inline |
| 83 | struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, |
| 84 | struct i2c_adapter *i2c) { |
| 85 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| 86 | return NULL; |
| 87 | } |
| 88 | #endif /* CONFIG_DVB_LGS8GXX */ |
| 89 | |
| 90 | #endif /* __LGS8GXX_H__ */ |