175 lines
4.0 KiB
C
175 lines
4.0 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdbool.h>
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#include <stdlib.h>
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#include "config.h"
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#include "debug.h"
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#include "tuner.h"
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#ifdef HAVE_RDS_CAP
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#include <strlcpy.h>
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#include "system.h"
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#include "rds.h"
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#endif
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#if CONFIG_TUNER
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static int frequency = 0;
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static bool mono = false;
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static bool powered = false;
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void tuner_init(void)
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{
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}
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int tuner_set(int setting, int value)
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{
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switch(setting)
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{
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case RADIO_SLEEP:
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break;
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case RADIO_FREQUENCY:
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frequency = value;
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break;
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case RADIO_SCAN_FREQUENCY:
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frequency = value;
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break;
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case RADIO_MUTE:
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break;
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case RADIO_FORCE_MONO:
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mono = (value != 0);
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break;
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default:
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return -1;
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}
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return 1;
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}
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int tuner_get(int setting)
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{
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int val = 0;
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#ifdef HAVE_RADIO_RSSI
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static int rssi = 0, rssidiff = 2;
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#endif
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switch(setting)
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{
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case RADIO_PRESENT:
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val = 1; /* true */
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break;
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case RADIO_TUNED:
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if(frequency == 99500000)
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val = 1;
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break;
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case RADIO_STEREO:
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if(frequency == 99500000)
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val = mono?0:1;
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break;
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#ifdef HAVE_RADIO_RSSI
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case RADIO_RSSI_MIN:
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val = 5;
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break;
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case RADIO_RSSI_MAX:
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val = 75;
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break;
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case RADIO_RSSI:
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rssi += rssidiff;
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if (rssi >= 75)
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{
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rssi = 75;
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rssidiff = -2;
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}
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else if (rssi < 5)
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{
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rssi = 5;
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rssidiff = 2;
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}
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val = rssi;
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break;
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#endif
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case RADIO_ALL: /* debug query */
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break;
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}
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return val;
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}
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bool tuner_power(bool status)
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{
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bool oldstatus = powered;
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powered = status;
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return oldstatus;
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}
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#ifdef HAVE_RDS_CAP
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size_t tuner_get_rds_info(int setting, void *dst, size_t dstsize)
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{
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/* TODO: integrate this into tuner_get/set */
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static const unsigned char info_id_tbl[] =
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{
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[RADIO_RDS_NAME] = RDS_INFO_PS,
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[RADIO_RDS_TEXT] = RDS_INFO_RT,
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[RADIO_RDS_PROGRAM_INFO] = RDS_INFO_PI,
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[RADIO_RDS_CURRENT_TIME] = RDS_INFO_CT,
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};
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if ((unsigned int)setting >= ARRAYLEN(info_id_tbl))
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return 0;
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switch (info_id_tbl[setting])
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{
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case RDS_INFO_PI:
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if (dstsize >= sizeof (uint16_t)) {
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*(uint16_t *)dst = 0;
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}
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dstsize = sizeof (uint16_t);
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break;
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case RDS_INFO_PS:
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dstsize = strlcpy(dst, "Rockbox Radio", dstsize);
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break;
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case RDS_INFO_RT:
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dstsize = strlcpy(dst, "http://www.rockbox.org", dstsize);
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break;
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case RDS_INFO_CT:
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if (dstsize >= sizeof (time_t)) {
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*(time_t *)dst = 0;
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}
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dstsize = sizeof (time_t);
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break;
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default:
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dstsize = 0;
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}
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return dstsize;
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}
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#endif /* HAVE_RDS_CAP */
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#endif /* CONFIG_TUNER */
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