Contiki 2.6
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00001 /* 00002 * Copyright (c) 2005, Swedish Institute of Computer Science 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * This file is part of the Contiki operating system. 00030 * 00031 * @(#)$Id: beep.c,v 1.4 2006/07/07 06:36:38 nifi Exp $ 00032 */ 00033 00034 #include "contiki.h" 00035 #include "contiki-esb.h" 00036 #include "sys/clock.h" 00037 00038 #define ON 1 00039 #define OFF 0 00040 00041 /* 00042 * Flag to indicate if any of these functions should generate a sound 00043 * or not. The function beep_off() is used to change this flag so none 00044 * of the functions will generate sounds and beep_on() to turn sound 00045 * back on. 00046 */ 00047 static char onoroff = ON; 00048 00049 /* 00050 * BEEPER_BIT is the bit in the io-register that is connected to the actual 00051 * beeper, setting the bit high vill generate a high pitch tone. 00052 */ 00053 #define BEEPER_BIT 0x08 00054 00055 /*-----------------------------------------------------------------------------------*/ 00056 void 00057 beep_alarm(int alarmmode, int len) 00058 { 00059 len = len / 200; 00060 00061 while(len > 0) { 00062 /* 00063 * Check here if we should beep or not since if we do it outside the 00064 * while loop the call to this function would take muck less time, i.e. 00065 * beep_on()/beep_off() would have side effects that might not be 00066 * predictable. 00067 */ 00068 if(onoroff == ON) { 00069 if((alarmmode == BEEP_ALARM1) && ((len & 7) > 4)) { 00070 P2OUT |= BEEPER_BIT; 00071 } else if((alarmmode == BEEP_ALARM2) && ((len & 15) > 12)) { 00072 P2OUT |= BEEPER_BIT; 00073 } else { 00074 P2OUT &= ~BEEPER_BIT; 00075 } 00076 } 00077 clock_delay(200); 00078 len--; 00079 } 00080 P2OUT &= ~BEEPER_BIT; 00081 } 00082 /*-----------------------------------------------------------------------------------*/ 00083 void 00084 beep_beep(int i) 00085 { 00086 if(onoroff == ON) { 00087 /* Beep. */ 00088 P2OUT |= BEEPER_BIT; 00089 clock_delay(i); 00090 P2OUT &= ~BEEPER_BIT; 00091 } 00092 } 00093 /*-----------------------------------------------------------------------------------*/ 00094 void 00095 beep(void) 00096 { 00097 beep_beep(20); 00098 } 00099 /*-----------------------------------------------------------------------------------*/ 00100 void 00101 beep_down(int d) 00102 { 00103 int i; 00104 for(i = 8; i < d; i += i / 8) { 00105 beep_beep(10); 00106 clock_delay(i); 00107 } 00108 } 00109 /*-----------------------------------------------------------------------------------*/ 00110 void 00111 beep_on(void) 00112 { 00113 onoroff = ON; 00114 } 00115 /*-----------------------------------------------------------------------------------*/ 00116 void 00117 beep_off(void) 00118 { 00119 onoroff = OFF; 00120 } 00121 /*-----------------------------------------------------------------------------------*/ 00122 void 00123 beep_spinup(void) 00124 { 00125 unsigned int i; 00126 00127 for(i = 10000; i > 80; i -= i / 20) { 00128 beep_beep(2); 00129 clock_delay(i); 00130 } 00131 00132 for(i = 4980; i > 2000; i -= 20) { 00133 leds_on(LEDS_ALL); 00134 clock_delay(5000 - i); 00135 leds_off(LEDS_ALL); 00136 clock_delay(i); 00137 } 00138 00139 } 00140 /*-----------------------------------------------------------------------------------*/ 00141 void 00142 beep_quick(int n) 00143 { 00144 int i; 00145 for(i = 0; i < n; ++i) { 00146 beep_beep(2000); 00147 clock_delay(20000); 00148 } 00149 } 00150 /*-----------------------------------------------------------------------------------*/ 00151 void beep_long(clock_time_t len) { 00152 /* 00153 * Check if the beeper is turned on or off, i.e. if a call should generate 00154 * a noise or not. 00155 */ 00156 if(onoroff == ON) { 00157 /* Turn on the beeper. */ 00158 P2OUT |= BEEPER_BIT; 00159 } 00160 00161 clock_wait(len); 00162 00163 if(onoroff == ON) { 00164 /* Turn the beeper off. */ 00165 P2OUT &= ~BEEPER_BIT; 00166 } 00167 } 00168 /*-----------------------------------------------------------------------------------*/