drivers/media/dvb/frontends/qt1010_priv.h

   1 /*
   2  *  Driver for Quantek QT1010 silicon tuner
   3  *
   4  *  Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
   5  *                     Aapo Tahkola <aet@rasterburn.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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 QT1010_PRIV_H
  23 #define QT1010_PRIV_H
  24
  25 /*
  26 reg def meaning
  27 === === =======
  28 00  00  ?
  29 01  a0  ? operation start/stop; start=80, stop=00
  30 02  00  ?
  31 03  19  ?
  32 04  00  ?
  33 05  00  ? maybe band selection
  34 06  00  ?
  35 07  2b  set frequency: 32 MHz scale, n*32 MHz
  36 08  0b  ?
  37 09  10  ? changes every 8/24 MHz; values 1d/1c
  38 0a  08  set frequency: 4 MHz scale, n*4 MHz
  39 0b  41  ? changes every 2/2 MHz; values 45/45
  40 0c  e1  ?
  41 0d  94  ?
  42 0e  b6  ?
  43 0f  2c  ?
  44 10  10  ?
  45 11  f1  ? maybe device specified adjustment
  46 12  11  ? maybe device specified adjustment
  47 13  3f  ?
  48 14  1f  ?
  49 15  3f  ?
  50 16  ff  ?
  51 17  ff  ?
  52 18  f7  ?
  53 19  80  ?
  54 1a  d0  set frequency: 125 kHz scale, n*125 kHz
  55 1b  00  ?
  56 1c  89  ?
  57 1d  00  ?
  58 1e  00  ? looks like operation register; write cmd here, read result from 1f-26
  59 1f  20  ? chip initialization
  60 20  e0  ? chip initialization
  61 21  20  ?
  62 22  d0  ?
  63 23  d0  ?
  64 24  d0  ?
  65 25  40  ? chip initialization
  66 26  08  ?
  67 27  29  ?
  68 28  55  ?
  69 29  39  ?
  70 2a  13  ?
  71 2b  01  ?
  72 2c  ea  ?
  73 2d  00  ?
  74 2e  00  ? not used?
  75 2f  00  ? not used?
  76 */
  77
  78 #define QT1010_STEP         125000 /*  125 kHz used by Windows drivers,
  79                                       hw could be more precise but we don't
  80                                       know how to use */
  81 #define QT1010_MIN_FREQ   48000000 /*   48 MHz */
  82 #define QT1010_MAX_FREQ  860000000 /*  860 MHz */
  83 #define QT1010_OFFSET   1246000000 /* 1246 MHz */
  84
  85 #define QT1010_WR 0
  86 #define QT1010_RD 1
  87 #define QT1010_M1 3
  88
  89 typedef struct {
  90         u8 oper, reg, val;
  91 } qt1010_i2c_oper_t;
  92
  93 struct qt1010_priv {
  94         struct qt1010_config *cfg;
  95         struct i2c_adapter   *i2c;
  96
  97         u8 reg1f_init_val;
  98         u8 reg20_init_val;
  99         u8 reg25_init_val;
 100
 101         u32 frequency;
 102         u32 bandwidth;
 103 };
 104
 105 #endif