112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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LPC122x EXT driver - Copyright (C) 2013 Marcin Jokel
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "ch.h"
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#include "hal.h"
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static void led1off(void *arg) {
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(void)arg;
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palSetPad(GPIO1, GPIO1_LED1);
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}
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/* Triggered when the button is pressed or released. The LED1 is set to ON.*/
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static void ext2cb12(EXTDriver *extp, expchannel_t channel) {
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static VirtualTimer vt4;
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(void)extp;
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(void)channel;
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palClearPad(GPIO1, GPIO1_LED1);
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chSysLockFromIsr();
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if (chVTIsArmedI(&vt4))
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chVTResetI(&vt4);
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/* LED1 set to OFF after 200mS.*/
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chVTSetI(&vt4, MS2ST(200), led1off, NULL);
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chSysUnlockFromIsr();
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}
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static const EXTConfig extcfg = {
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{
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART, ext2cb12},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL},
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{EXT_CH_MODE_DISABLED, NULL}
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}
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};
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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/*
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* Activates the EXT driver 1.
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*/
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extStart(&EXTD2, &extcfg);
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/*
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* Normal main() thread activity, in this demo it enables and disables the
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* button EXT channel using 5 seconds intervals.
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*/
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while (TRUE) {
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chThdSleepMilliseconds(5000);
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extChannelDisable(&EXTD2, GPIO2_SW_USER1);
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chThdSleepMilliseconds(5000);
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extChannelEnable(&EXTD2, GPIO2_SW_USER1);
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}
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}
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