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 #ifdef CONFIG_TUNER_MULTI
  63 int (*tuner_set)(int setting, int value);
  64 int (*tuner_get)(int setting);
  65 #define TUNER_TYPE_CASE(type, set, get, ...) \
  66     case type:                                       \
  67         tuner_set = set;                             \
  68         tuner_get = get;                             \
  69         __VA_ARGS__;                                 \
  70         break;
  71 #else
  72 #define TUNER_TYPE_CASE(type, set, get, ...) \
  73         __VA_ARGS__;
  74 #endif /* CONFIG_TUNER_MULTI */
  75
  76 void tuner_init(void)
  77 {
  78 #ifdef CONFIG_TUNER_MULTI
  79     switch (tuner_detect_type())
  80 #endif
  81     {
  82     #if (CONFIG_TUNER & LV24020LP)
  83         TUNER_TYPE_CASE(LV24020LP,
  84                         lv24020lp_set,
  85                         lv24020lp_get,
  86                         lv24020lp_init())
  87     #endif
  88     #if (CONFIG_TUNER & TEA5767)
  89         TUNER_TYPE_CASE(TEA5767,
  90                         tea5767_set,
  91                         tea5767_get)
  92     #endif
  93     #if (CONFIG_TUNER & S1A0903X01)
  94         TUNER_TYPE_CASE(S1A0903X01,
  95                         s1a0903x01_set,
  96                         s1a0903x01_get)
  97     #endif
  98     }
  99 }
 100
 101 #endif /* SIMULATOR */