drivers/media/tuners/qt1010_priv.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Driver for Quantek QT1010 silicon tuner
   4  *
   5  *  Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
   6  *                     Aapo Tahkola <aet@rasterburn.org>
   7  */
   8
   9 #ifndef QT1010_PRIV_H
  10 #define QT1010_PRIV_H
  11
  12 /*
  13 reg def meaning
  14 === === =======
  15 00  00  ?
  16 01  a0  ? operation start/stop; start=80, stop=00
  17 02  00  ?
  18 03  19  ?
  19 04  00  ?
  20 05  00  ? maybe band selection
  21 06  00  ?
  22 07  2b  set frequency: 32 MHz scale, n*32 MHz
  23 08  0b  ?
  24 09  10  ? changes every 8/24 MHz; values 1d/1c
  25 0a  08  set frequency: 4 MHz scale, n*4 MHz
  26 0b  41  ? changes every 2/2 MHz; values 45/45
  27 0c  e1  ?
  28 0d  94  ?
  29 0e  b6  ?
  30 0f  2c  ?
  31 10  10  ?
  32 11  f1  ? maybe device specified adjustment
  33 12  11  ? maybe device specified adjustment
  34 13  3f  ?
  35 14  1f  ?
  36 15  3f  ?
  37 16  ff  ?
  38 17  ff  ?
  39 18  f7  ?
  40 19  80  ?
  41 1a  d0  set frequency: 125 kHz scale, n*125 kHz
  42 1b  00  ?
  43 1c  89  ?
  44 1d  00  ?
  45 1e  00  ? looks like operation register; write cmd here, read result from 1f-26
  46 1f  20  ? chip initialization
  47 20  e0  ? chip initialization
  48 21  20  ?
  49 22  d0  ?
  50 23  d0  ?
  51 24  d0  ?
  52 25  40  ? chip initialization
  53 26  08  ?
  54 27  29  ?
  55 28  55  ?
  56 29  39  ?
  57 2a  13  ?
  58 2b  01  ?
  59 2c  ea  ?
  60 2d  00  ?
  61 2e  00  ? not used?
  62 2f  00  ? not used?
  63 */
  64
  65 #define QT1010_STEP         (125 * kHz) /*
  66                                          * used by Windows drivers,
  67                                          * hw could be more precise but we don't
  68                                          * know how to use
  69                                          */
  70 #define QT1010_MIN_FREQ   (48 * MHz)
  71 #define QT1010_MAX_FREQ  (860 * MHz)
  72 #define QT1010_OFFSET   (1246 * MHz)
  73
  74 #define QT1010_WR 0
  75 #define QT1010_RD 1
  76 #define QT1010_M1 3
  77
  78 typedef struct {
  79         u8 oper, reg, val;
  80 } qt1010_i2c_oper_t;
  81
  82 struct qt1010_priv {
  83         struct qt1010_config *cfg;
  84         struct i2c_adapter   *i2c;
  85
  86         u8 reg1f_init_val;
  87         u8 reg20_init_val;
  88         u8 reg25_init_val;
  89
  90         u32 frequency;
  91 };
  92
  93 #endif