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  * All files in this archive are subject to the GNU General Public License.
  14  * See the file COPYING in the source tree root for full license agreement.
  15  *
  16  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  17  * KIND, either express or implied.
  18  *
  19  ****************************************************************************/
  20 #include <stdlib.h>
  21 #include "config.h"
  22 #include "kernel.h"
  23 #include "tuner.h"
  24 #include "fmradio.h"
  25
  26 /* General region information */
  27 const struct fm_region_data fm_region_data[TUNER_NUM_REGIONS] =
  28 {
  29     [REGION_EUROPE]    = { 87500000, 108000000,  50000 },
  30     [REGION_US_CANADA] = { 87900000, 107900000, 200000 },
  31     [REGION_JAPAN]     = { 76000000,  90000000, 100000 },
  32     [REGION_KOREA]     = { 87500000, 108000000, 100000 }
  33 };
  34
  35 #ifndef SIMULATOR
  36
  37 /* Tuner-specific region information */
  38
  39 #if (CONFIG_TUNER & LV24020LP)
  40 /* deemphasis setting for region */
  41 const unsigned char lv24020lp_region_data[TUNER_NUM_REGIONS] =
  42 {
  43     [REGION_EUROPE]    = 0, /* 50uS */
  44     [REGION_US_CANADA] = 1, /* 75uS */
  45     [REGION_JAPAN]     = 0, /* 50uS */
  46     [REGION_KOREA]     = 0, /* 50uS */
  47 };
  48 #endif /* (CONFIG_TUNER & LV24020LP) */
  49
  50 #if (CONFIG_TUNER & TEA5767)
  51 const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS] =
  52 {
  53     [REGION_EUROPE]    = { 0, 0 }, /* 50uS, US/Europe band */
  54     [REGION_US_CANADA] = { 1, 0 }, /* 75uS, US/Europe band */
  55     [REGION_JAPAN]     = { 0, 1 }, /* 50uS, Japanese band  */
  56     [REGION_KOREA]     = { 0, 0 }, /* 50uS, US/Europe band */
  57 };
  58 #endif /* (CONFIG_TUNER & TEA5767) */
  59
  60 #ifdef CONFIG_TUNER_MULTI
  61 int (*tuner_set)(int setting, int value);
  62 int (*tuner_get)(int setting);
  63 #define TUNER_TYPE_CASE(type, set, get, ...) \
  64     case type:                                       \
  65         tuner_set = set;                             \
  66         tuner_get = get;                             \
  67         __VA_ARGS__;                                 \
  68         break;
  69 #else
  70 #define TUNER_TYPE_CASE(type, set, get, ...) \
  71         __VA_ARGS__;
  72 #endif /* CONFIG_TUNER_MULTI */
  73
  74 void tuner_init(void)
  75 {
  76 #ifdef CONFIG_TUNER_MULTI
  77     switch (tuner_detect_type())
  78 #endif
  79     {
  80     #if (CONFIG_TUNER & LV24020LP)
  81         TUNER_TYPE_CASE(LV24020LP,
  82                         lv24020lp_set,
  83                         lv24020lp_get,
  84                         lv24020lp_init())
  85     #endif
  86     #if (CONFIG_TUNER & TEA5767)
  87         TUNER_TYPE_CASE(TEA5767,
  88                         tea5767_set,
  89                         tea5767_get)
  90     #endif
  91     #if (CONFIG_TUNER & S1A0903X01)
  92         TUNER_TYPE_CASE(S1A0903X01,
  93                         s1a0903x01_set,
  94                         s1a0903x01_get)
  95     #endif
  96     }
  97 }
  98
  99 #endif /* SIMULATOR */