drivers/media/dvb/frontends/drx397xD.h

   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
  50 struct drx397xD_CfgRfAgc        /* 0x7c */
  51 {
  52         int d00;        /* 2 */
  53         u16 w04;
  54         u16 w06;
  55 };
  56
  57 struct 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
  67 struct 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
  78 struct 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) && defined(MODULE))
 119 extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,
 120                                            struct i2c_adapter *i2c);
 121 #else
 122 static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config,
 123                                            struct i2c_adapter *i2c)
 124 {
 125         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 126         return NULL;
 127 }
 128 #endif /* CONFIG_DVB_DRX397XD */
 129
 130 #endif /* _DRX397XD_H_INCLUDED */