165 lines
4.7 KiB
C
165 lines
4.7 KiB
C
/*
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* Copyright (c) 2005, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: beep.c,v 1.3 2006/06/18 08:07:30 adamdunkels Exp $
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*/
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#include <io.h>
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#include "contiki-esb.h"
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/*
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* Flag to indicate if any of these functions should generate a sound
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* or not The function is used beep_off() to to change this flag so
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* none of the functions will generate sounds.
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*/
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static unsigned char beep_flag = BEEP_ON;
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/*
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* BEEPER_BIT is the bit in the io-register that is connected to the actual
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* beeper, setting the bit high vill generate a high pitch tone.
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*/
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#define BEEPER_BIT 0x08
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/*-----------------------------------------------------------------------------------*/
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void
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beep_alarm(int alarmmode, int len)
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{
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len = len / 200;
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while(len > 0) {
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/*
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* Check here if we should beep or not since if we do it outside the
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* while loop the call to this function would take muck less time, i.e.
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* beep_flag would have side effects that might not be predictable.
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*/
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if(beep_flag & BEEP_ON) {
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if((alarmmode == BEEP_ALARM1) && ((len & 7) > 4)) {
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P2OUT |= BEEPER_BIT;
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} else if((alarmmode == BEEP_ALARM2) && ((len & 15) > 12)) {
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P2OUT |= BEEPER_BIT;
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} else {
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P2OUT &= ~BEEPER_BIT;
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}
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}
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clock_delay(200);
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len--;
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}
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P2OUT &= ~BEEPER_BIT;
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_beep(int i)
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{
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if(beep_flag & BEEP_ON) {
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/* Beep. */
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P2OUT |= BEEPER_BIT;
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clock_delay(i);
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P2OUT &= ~BEEPER_BIT;
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep(void)
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{
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beep_beep(20);
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_down(int d)
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{
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int i;
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for(i = 8; i < d; i += i / 8) {
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beep_beep(10);
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clock_delay(i);
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_on(void)
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{
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beep_flag |= BEEP_ON;
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_off(void)
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{
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beep_flag &= ~BEEP_ON;
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_spinup(void)
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{
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unsigned int i;
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for(i = 10000; i > 80; i -= i / 20) {
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beep_beep(2);
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clock_delay(i);
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}
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for(i = 4980; i > 2000; i -= 20) {
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leds_on(LEDS_ALL);
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clock_delay(5000 - i);
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leds_off(LEDS_ALL);
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clock_delay(i);
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void
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beep_quick(int n)
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{
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int i;
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for(i = 0; i < n; ++i) {
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beep_beep(2000);
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clock_delay(20000);
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void beep_long(clock_time_t len) {
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/*
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* Check if the beeper is turned on or off, i.e. if a call should generate
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* a noise or not.
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*/
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if(beep_flag & BEEP_ON) {
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/* Turn on the beeper. */
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P2OUT |= BEEPER_BIT;
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}
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clock_wait(len);
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if(beep_flag & BEEP_ON) {
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/* Turn the beeper off. */
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P2OUT &= ~BEEPER_BIT;
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}
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}
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/*-----------------------------------------------------------------------------------*/
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