uisimulator/common/fmradio.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Linus Nielsen Feltzing
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include <stdbool.h>
  22 #include <stdlib.h>
  23 #include "config.h"
  24 #include "debug.h"
  25 #include "tuner.h"
  26
  27 #if CONFIG_TUNER
  28
  29 static int frequency = 0;
  30 static bool mono = false;
  31
  32 static bool powered = false;
  33
  34 void tuner_init(void)
  35 {
  36 }
  37
  38 int tuner_set(int setting, int value)
  39 {
  40     switch(setting)
  41     {
  42         case RADIO_SLEEP:
  43             break;
  44
  45         case RADIO_FREQUENCY:
  46             frequency = value;
  47             break;
  48
  49         case RADIO_SCAN_FREQUENCY:
  50             frequency = value;
  51             break;
  52
  53         case RADIO_MUTE:
  54             break;
  55
  56         case RADIO_FORCE_MONO:
  57             mono = (value != 0);
  58             break;
  59
  60         default:
  61             return -1;
  62     }
  63
  64     return 1;
  65 }
  66
  67 int tuner_get(int setting)
  68 {
  69     int val = 0;
  70 #ifdef HAVE_RADIO_RSSI
  71     static int rssi = 0, rssidiff = 2;
  72 #endif
  73
  74     switch(setting)
  75     {
  76         case RADIO_PRESENT:
  77             val = 1; /* true */
  78             break;
  79
  80         case RADIO_TUNED:
  81             if(frequency == 99500000)
  82                 val = 1;
  83             break;
  84
  85         case RADIO_STEREO:
  86             if(frequency == 99500000)
  87                 val = mono?0:1;
  88             break;
  89
  90 #ifdef HAVE_RADIO_RSSI
  91         case RADIO_RSSI_MIN:
  92             val = 5;
  93             break;
  94         case RADIO_RSSI_MAX:
  95             val = 75;
  96             break;
  97         case RADIO_RSSI:
  98             rssi += rssidiff;
  99             if (rssi >= 75)
 100             {
 101                 rssi = 75;
 102                 rssidiff = -2;
 103             }
 104             else if (rssi < 5)
 105             {
 106                 rssi = 5;
 107                 rssidiff = 2;
 108             }
 109             val = rssi;
 110             break;
 111 #endif
 112
 113         case RADIO_ALL: /* debug query */
 114             break;
 115     }
 116     return val;
 117 }
 118
 119 bool tuner_power(bool status)
 120 {
 121     bool oldstatus = powered;
 122     powered = status;
 123     return oldstatus;
 124 }
 125
 126 #ifdef HAVE_RDS_CAP
 127 char* tuner_get_rds_info(int setting)
 128 {
 129     char *text = NULL;
 130
 131     switch(setting)
 132     {
 133         case RADIO_RDS_NAME:
 134             text = "Rockbox Radio";
 135             break;
 136
 137         case RADIO_RDS_TEXT:
 138             text = "http://www.rockbox.org" ;
 139             break;
 140     }
 141     return text;
 142 }
 143 #endif
 144 #endif