drivers/media/tuners/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
  18 #ifndef QT1010_PRIV_H
  19 #define QT1010_PRIV_H
  20
  21 /*
  22 reg def meaning
  23 === === =======
  24 00  00  ?
  25 01  a0  ? operation start/stop; start=80, stop=00
  26 02  00  ?
  27 03  19  ?
  28 04  00  ?
  29 05  00  ? maybe band selection
  30 06  00  ?
  31 07  2b  set frequency: 32 MHz scale, n*32 MHz
  32 08  0b  ?
  33 09  10  ? changes every 8/24 MHz; values 1d/1c
  34 0a  08  set frequency: 4 MHz scale, n*4 MHz
  35 0b  41  ? changes every 2/2 MHz; values 45/45
  36 0c  e1  ?
  37 0d  94  ?
  38 0e  b6  ?
  39 0f  2c  ?
  40 10  10  ?
  41 11  f1  ? maybe device specified adjustment
  42 12  11  ? maybe device specified adjustment
  43 13  3f  ?
  44 14  1f  ?
  45 15  3f  ?
  46 16  ff  ?
  47 17  ff  ?
  48 18  f7  ?
  49 19  80  ?
  50 1a  d0  set frequency: 125 kHz scale, n*125 kHz
  51 1b  00  ?
  52 1c  89  ?
  53 1d  00  ?
  54 1e  00  ? looks like operation register; write cmd here, read result from 1f-26
  55 1f  20  ? chip initialization
  56 20  e0  ? chip initialization
  57 21  20  ?
  58 22  d0  ?
  59 23  d0  ?
  60 24  d0  ?
  61 25  40  ? chip initialization
  62 26  08  ?
  63 27  29  ?
  64 28  55  ?
  65 29  39  ?
  66 2a  13  ?
  67 2b  01  ?
  68 2c  ea  ?
  69 2d  00  ?
  70 2e  00  ? not used?
  71 2f  00  ? not used?
  72 */
  73
  74 #define QT1010_STEP         125000 /*  125 kHz used by Windows drivers,
  75                                       hw could be more precise but we don't
  76                                       know how to use */
  77 #define QT1010_MIN_FREQ   48000000 /*   48 MHz */
  78 #define QT1010_MAX_FREQ  860000000 /*  860 MHz */
  79 #define QT1010_OFFSET   1246000000 /* 1246 MHz */
  80
  81 #define QT1010_WR 0
  82 #define QT1010_RD 1
  83 #define QT1010_M1 3
  84
  85 typedef struct {
  86         u8 oper, reg, val;
  87 } qt1010_i2c_oper_t;
  88
  89 struct qt1010_priv {
  90         struct qt1010_config *cfg;
  91         struct i2c_adapter   *i2c;
  92
  93         u8 reg1f_init_val;
  94         u8 reg20_init_val;
  95         u8 reg25_init_val;
  96
  97         u32 frequency;
  98 };
  99
 100 #endif