firmware/tuner.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  * General tuner functions
  10  *
  11  * Copyright (C) 2007 by Michael Sevakis
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22 #include <stdlib.h>
  23 #include "config.h"
  24 #include "kernel.h"
  25 #include "tuner.h"
  26 #include "fmradio.h"
  27
  28 /* General region information */
  29 const struct fm_region_data fm_region_data[TUNER_NUM_REGIONS] =
  30 {
  31     [REGION_EUROPE]    = { 87500000, 108000000,  50000 },
  32     [REGION_US_CANADA] = { 87900000, 107900000, 200000 },
  33     [REGION_JAPAN]     = { 76000000,  90000000, 100000 },
  34     [REGION_KOREA]     = { 87500000, 108000000, 100000 }
  35 };
  36
  37 #ifndef SIMULATOR
  38
  39 /* Tuner-specific region information */
  40
  41 #if (CONFIG_TUNER & LV24020LP)
  42 /* deemphasis setting for region */
  43 const unsigned char lv24020lp_region_data[TUNER_NUM_REGIONS] =
  44 {
  45     [REGION_EUROPE]    = 0, /* 50uS */
  46     [REGION_US_CANADA] = 1, /* 75uS */
  47     [REGION_JAPAN]     = 0, /* 50uS */
  48     [REGION_KOREA]     = 0, /* 50uS */
  49 };
  50 #endif /* (CONFIG_TUNER & LV24020LP) */
  51
  52 #if (CONFIG_TUNER & TEA5767)
  53 const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS] =
  54 {
  55     [REGION_EUROPE]    = { 0, 0 }, /* 50uS, US/Europe band */
  56     [REGION_US_CANADA] = { 1, 0 }, /* 75uS, US/Europe band */
  57     [REGION_JAPAN]     = { 0, 1 }, /* 50uS, Japanese band  */
  58     [REGION_KOREA]     = { 0, 0 }, /* 50uS, US/Europe band */
  59 };
  60 #endif /* (CONFIG_TUNER & TEA5767) */
  61
  62 #if (CONFIG_TUNER & SI4700)
  63 const struct si4700_region_data si4700_region_data[TUNER_NUM_REGIONS] =
  64 {
  65     [REGION_EUROPE]    = { 1, 0, 2 }, /* 50uS, US/Europe band,  50kHz spacing */
  66     [REGION_US_CANADA] = { 0, 0, 0 }, /* 75uS, US/Europe band, 200kHz spacing */
  67     [REGION_JAPAN]     = { 1, 2, 1 }, /* 50uS, Japanese band,  100kHz spacing */
  68     [REGION_KOREA]     = { 1, 0, 1 }, /* 50uS, US/Europe band, 100kHz spacing */
  69 };
  70 #endif /* (CONFIG_TUNER & SI4700) */
  71
  72 #ifdef CONFIG_TUNER_MULTI
  73 int (*tuner_set)(int setting, int value);
  74 int (*tuner_get)(int setting);
  75 #define TUNER_TYPE_CASE(type, set, get, ...) \
  76     case type:                                       \
  77         tuner_set = set;                             \
  78         tuner_get = get;                             \
  79         __VA_ARGS__;                                 \
  80         break;
  81 #else
  82 #define TUNER_TYPE_CASE(type, set, get, ...) \
  83         __VA_ARGS__;
  84 #endif /* CONFIG_TUNER_MULTI */
  85
  86 void tuner_init(void)
  87 {
  88 #ifdef CONFIG_TUNER_MULTI
  89     switch (tuner_detect_type())
  90 #endif
  91     {
  92     #if (CONFIG_TUNER & LV24020LP)
  93         TUNER_TYPE_CASE(LV24020LP,
  94                         lv24020lp_set,
  95                         lv24020lp_get,
  96                         lv24020lp_init())
  97     #endif
  98     #if (CONFIG_TUNER & TEA5767)
  99         TUNER_TYPE_CASE(TEA5767,
 100                         tea5767_set,
 101                         tea5767_get)
 102     #endif
 103     #if (CONFIG_TUNER & S1A0903X01)
 104         TUNER_TYPE_CASE(S1A0903X01,
 105                         s1a0903x01_set,
 106                         s1a0903x01_get)
 107     #endif
 108     #if (CONFIG_TUNER & SI4700)
 109         TUNER_TYPE_CASE(SI4700,
 110                         si4700_set,
 111                         si4700_get,
 112                         si4700_init())
 113     #endif
 114     }
 115 }
 116
 117 #endif /* SIMULATOR */