nes-proj/platform/esb/dev/beep.c

169 lines
4.7 KiB
C

/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: beep.c,v 1.4 2006/07/07 06:36:38 nifi Exp $
*/
#include <io.h>
#include "contiki-esb.h"
#define ON 1
#define OFF 0
/*
* Flag to indicate if any of these functions should generate a sound
* or not. The function beep_off() is used to change this flag so none
* of the functions will generate sounds and beep_on() to turn sound
* back on.
*/
static char onoroff = ON;
/*
* BEEPER_BIT is the bit in the io-register that is connected to the actual
* beeper, setting the bit high vill generate a high pitch tone.
*/
#define BEEPER_BIT 0x08
/*-----------------------------------------------------------------------------------*/
void
beep_alarm(int alarmmode, int len)
{
len = len / 200;
while(len > 0) {
/*
* Check here if we should beep or not since if we do it outside the
* while loop the call to this function would take muck less time, i.e.
* beep_on()/beep_off() would have side effects that might not be
* predictable.
*/
if(onoroff == ON) {
if((alarmmode == BEEP_ALARM1) && ((len & 7) > 4)) {
P2OUT |= BEEPER_BIT;
} else if((alarmmode == BEEP_ALARM2) && ((len & 15) > 12)) {
P2OUT |= BEEPER_BIT;
} else {
P2OUT &= ~BEEPER_BIT;
}
}
clock_delay(200);
len--;
}
P2OUT &= ~BEEPER_BIT;
}
/*-----------------------------------------------------------------------------------*/
void
beep_beep(int i)
{
if(onoroff == ON) {
/* Beep. */
P2OUT |= BEEPER_BIT;
clock_delay(i);
P2OUT &= ~BEEPER_BIT;
}
}
/*-----------------------------------------------------------------------------------*/
void
beep(void)
{
beep_beep(20);
}
/*-----------------------------------------------------------------------------------*/
void
beep_down(int d)
{
int i;
for(i = 8; i < d; i += i / 8) {
beep_beep(10);
clock_delay(i);
}
}
/*-----------------------------------------------------------------------------------*/
void
beep_on(void)
{
onoroff = ON;
}
/*-----------------------------------------------------------------------------------*/
void
beep_off(void)
{
onoroff = OFF;
}
/*-----------------------------------------------------------------------------------*/
void
beep_spinup(void)
{
unsigned int i;
for(i = 10000; i > 80; i -= i / 20) {
beep_beep(2);
clock_delay(i);
}
for(i = 4980; i > 2000; i -= 20) {
leds_on(LEDS_ALL);
clock_delay(5000 - i);
leds_off(LEDS_ALL);
clock_delay(i);
}
}
/*-----------------------------------------------------------------------------------*/
void
beep_quick(int n)
{
int i;
for(i = 0; i < n; ++i) {
beep_beep(2000);
clock_delay(20000);
}
}
/*-----------------------------------------------------------------------------------*/
void beep_long(clock_time_t len) {
/*
* Check if the beeper is turned on or off, i.e. if a call should generate
* a noise or not.
*/
if(onoroff == ON) {
/* Turn on the beeper. */
P2OUT |= BEEPER_BIT;
}
clock_wait(len);
if(onoroff == ON) {
/* Turn the beeper off. */
P2OUT &= ~BEEPER_BIT;
}
}
/*-----------------------------------------------------------------------------------*/