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/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ch.h>
#include "lpc214x.h"
#include "lpc214x_serial.h"
#include "mmcsd.h"
#include "buzzer.h"
#include "evtimer.h"
/*
* Red LEDs blinker thread, times are in milliseconds.
*/
static WorkingArea(waThread1, 64);
static t_msg Thread1(void *arg) {
while (TRUE) {
IO0CLR = 0x00000800;
chThdSleep(200);
IO0SET = 0x00000C00;
chThdSleep(800);
IO0CLR = 0x00000400;
chThdSleep(200);
IO0SET = 0x00000C00;
chThdSleep(800);
}
return 0;
}
/*
* Yellow LED blinker thread, times are in milliseconds.
*/
static WorkingArea(waThread2, 64);
static t_msg Thread2(void *arg) {
while (TRUE) {
IO0CLR = 0x80000000;
chThdSleep(200);
IO0SET = 0x80000000;
chThdSleep(300);
}
return 0;
}
/*
* Executed as event handler at 500mS intervals.
*/
static void TimerHandler(t_eventid id) {
t_msg TestThread(void *p);
if (!(IO0PIN & 0x00018000)) { // Both buttons
TestThread(&COM1);
PlaySound(500, 100);
}
else {
if (!(IO0PIN & 0x00008000)) // Button 1
PlaySound(1000, 100);
if (!(IO0PIN & 0x00010000)) { // Button 2
chFDDWrite(&COM1, (BYTE8 *)"Hello World!\r\n", 14);
PlaySound(2000, 100);
}
}
}
/*
* Plays sounds when a MMC/SD card is inserted, then initializes the MMC
* driver and reads a sector.
*/
static void InsertHandler(t_eventid id) {
static BYTE8 rwbuf[512];
MMCCSD data;
PlaySoundWait(1000, 100);
PlaySoundWait(2000, 100);
if (mmcInit())
return;
/* Card ready, do stuff.*/
if (mmcGetSize(&data))
return;
if (mmcRead(rwbuf, 0))
return;
PlaySound(440, 200);
}
/*
* Plays sounds when a MMC/SD card is removed.
*/
static void RemoveHandler(t_eventid id) {
PlaySoundWait(2000, 100);
PlaySoundWait(1000, 100);
}
/*
* Entry point, the interrupts are disabled on entry.
*/
int main(int argc, char **argv) {
static const t_evhandler evhndl[] = {
TimerHandler,
InsertHandler,
RemoveHandler
};
static EvTimer evt;
struct EventListener el0, el1, el2;
/*
* The main() function becomes a thread here then the interrupts are
* enabled and ChibiOS/RT goes live.
*/
chSysInit();
/*
* If a button is pressed during the reset then the blinking leds threads
* are not started in order to make accurate benchmarks.
*/
if ((IO0PIN & 0x00018000) == 0x00018000) {
chThdCreate(NORMALPRIO, 0, waThread1, sizeof(waThread1), Thread1, NULL);
chThdCreate(NORMALPRIO, 0, waThread2, sizeof(waThread2), Thread2, NULL);
}
/*
* Normal main() activity, in this demo it serves events generated by
* various sources.
*/
evtInit(&evt, 500); /* Initializes an event timer object. */
evtStart(&evt); /* Starts the event timer. */
chEvtRegister(&evt.et_es, &el0, 0); /* Registers on the timer event source. */
mmcStartPolling(); /* Starts the MMC connector polling. */
chEvtRegister(&MMCInsertEventSource, &el1, 1);
chEvtRegister(&MMCRemoveEventSource, &el2, 2);
while (TRUE) /* Just serve events. */
chEvtWait(ALL_EVENTS, evhndl);
return 0;
}
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