1/* 2 * Driver for Micronas DVB-T drx397xD demodulator 3 * 4 * Copyright (C) 2007 Henk vergonet <Henk.Vergonet@gmail.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= 20 */ 21 22#ifndef _DRX397XD_H_INCLUDED 23#define _DRX397XD_H_INCLUDED 24 25#include <linux/dvb/frontend.h> 26 27#define DRX_F_STEPSIZE 166667 28#define DRX_F_OFFSET 36000000 29 30#define I2C_ADR_C0(x) \ 31( cpu_to_le32( \ 32 (u32)( \ 33 (((u32)(x) & (u32)0x000000ffUL) ) | \ 34 (((u32)(x) & (u32)0x0000ff00UL) << 16) | \ 35 (((u32)(x) & (u32)0x0fff0000UL) >> 8) | \ 36 ( (u32)0x00c00000UL) \ 37 )) \ 38) 39 40#define I2C_ADR_E0(x) \ 41( cpu_to_le32( \ 42 (u32)( \ 43 (((u32)(x) & (u32)0x000000ffUL) ) | \ 44 (((u32)(x) & (u32)0x0000ff00UL) << 16) | \ 45 (((u32)(x) & (u32)0x0fff0000UL) >> 8) | \ 46 ( (u32)0x00e00000UL) \ 47 )) \ 48) 49 50struct drx397xD_CfgRfAgc /* 0x7c */ 51{ 52 int d00; /* 2 */ 53 u16 w04; 54 u16 w06; 55}; 56 57struct drx397xD_CfgIfAgc /* 0x68 */ 58{ 59 int d00; /* 0 */ 60 u16 w04; /* 0 */ 61 u16 w06; 62 u16 w08; 63 u16 w0A; 64 u16 w0C; 65}; 66 67struct drx397xD_s20 { 68 int d04; 69 u32 d18; 70 u32 d1C; 71 u32 d20; 72 u32 d14; 73 u32 d24; 74 u32 d0C; 75 u32 d08; 76}; 77 78struct drx397xD_config 79{ 80 /* demodulator's I2C address */ 81 u8 demod_address; /* 0x0f */ 82 83 struct drx397xD_CfgIfAgc ifagc; /* 0x68 */ 84 struct drx397xD_CfgRfAgc rfagc; /* 0x7c */ 85 u32 s20d24; 86 87 /* HI_CfgCommand parameters */ 88 u16 w50, w52, /* w54, */ w56; 89 90 int d5C; 91 int d60; 92 int d48; 93 int d28; 94 95 u32 f_if; /* d14: intermediate frequency [Hz] */ 96 /* 36000000 on Cinergy 2400i DT */ 97 /* 42800000 on Pinnacle Hybrid PRO 330e */ 98 99 u16 f_osc; /* s66: 48000 oscillator frequency [kHz] */ 100 101 u16 w92; /* 20000 */ 102 103 u16 wA0; 104 u16 w98; 105 u16 w9A; 106 107 u16 w9C; /* 0xe0 */ 108 u16 w9E; /* 0x00 */ 109 110 /* used for signal strength calculations in 111 drx397x_read_signal_strength 112 */ 113 u16 ss78; // 2200 114 u16 ss7A; // 150 115 u16 ss76; // 820 116}; 117 118#if defined(CONFIG_DVB_DRX397XD) || (defined(CONFIG_DVB_DRX397XD_MODULE) && \ 119 defined(MODULE)) 120extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config, 121 struct i2c_adapter *i2c); 122#else 123static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config, 124 struct i2c_adapter *i2c) 125{ 126 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 127 return NULL; 128} 129#endif /* CONFIG_DVB_DRX397XD */ 130 131#endif /* _DRX397XD_H_INCLUDED */ 132