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206 lines
5.8 KiB
C
206 lines
5.8 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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/*
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* Portions of this file build on button-sensor.c in platforms sky and esb
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* This file contains ISRs: Keep it in the HOME bank.
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*/
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#include "dev/models.h"
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#include "lib/sensors.h"
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#include "dev/hwconf.h"
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#include "dev/sensinode-sensors.h"
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#if BUTTON_SENSOR_ON
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static uint8_t p0ien;
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static uint8_t p2ien;
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static CC_AT_DATA struct timer debouncetimer[2];
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#ifdef MODEL_N740
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HWCONF_PIN(BUTTON_1, 1, 0)
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HWCONF_PORT_1_IRQ(BUTTON_1, 0)
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HWCONF_PIN(BUTTON_2, 0, 4)
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HWCONF_PORT_0_IRQ(BUTTON_2, 4)
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#endif /* MODEL_N740 */
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#ifdef MODEL_N711
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HWCONF_PIN(BUTTON_1, 0, 6)
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HWCONF_PORT_0_IRQ(BUTTON_1, 6)
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HWCONF_PIN(BUTTON_2, 0, 7)
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HWCONF_PORT_0_IRQ(BUTTON_2, 7)
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#endif /* MODEL_N711 */
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/*---------------------------------------------------------------------------*/
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static int
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value_b1(int type)
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{
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return BUTTON_1_READ() || !timer_expired(&debouncetimer[0]);
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}
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/*---------------------------------------------------------------------------*/
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static int
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status_b1(int type)
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{
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switch(type) {
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case SENSORS_ACTIVE:
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case SENSORS_READY:
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return BUTTON_1_IRQ_ENABLED();
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static int
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configure_b1(int type, int value)
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{
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switch(type) {
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case SENSORS_HW_INIT:
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/* Generates INT when pressed */
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BUTTON_1_IRQ_EDGE_SELECTD();
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BUTTON_1_SELECT();
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BUTTON_1_MAKE_INPUT();
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return 1;
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case SENSORS_ACTIVE:
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if(value) {
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if(!BUTTON_1_IRQ_ENABLED()) {
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timer_set(&debouncetimer[0], 0);
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BUTTON_1_IRQ_FLAG_OFF();
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BUTTON_1_ENABLE_IRQ();
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}
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} else {
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BUTTON_1_DISABLE_IRQ();
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}
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static int
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value_b2(int type)
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{
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return BUTTON_2_READ() || !timer_expired(&debouncetimer[1]);
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}
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/*---------------------------------------------------------------------------*/
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static int
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status_b2(int type)
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{
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switch(type) {
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case SENSORS_ACTIVE:
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case SENSORS_READY:
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return BUTTON_2_IRQ_ENABLED();
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static int
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configure_b2(int type, int value)
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{
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switch(type) {
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case SENSORS_HW_INIT:
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/* Generates INT when released */
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/* BUTTON_2_IRQ_EDGE_SELECTD(); */
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BUTTON_2_SELECT();
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BUTTON_2_MAKE_INPUT();
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return 1;
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case SENSORS_ACTIVE:
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if(value) {
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if(!BUTTON_2_IRQ_ENABLED()) {
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timer_set(&debouncetimer[1], 0);
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BUTTON_2_IRQ_FLAG_OFF();
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BUTTON_2_ENABLE_IRQ();
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}
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} else {
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BUTTON_2_DISABLE_IRQ();
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}
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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#pragma save
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#if CC_CONF_OPTIMIZE_STACK_SIZE
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#pragma exclude bits
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#endif
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void
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port_0_ISR(void) __interrupt (P0INT_VECTOR)
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{
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EA = 0;
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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/* This ISR is for the entire port. Check if the interrupt was caused by our
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* button's pin. */
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/* Check B1 for N711 */
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#ifdef MODEL_N711
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if(BUTTON_1_CHECK_IRQ()) {
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if(timer_expired(&debouncetimer[0])) {
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timer_set(&debouncetimer[0], CLOCK_SECOND / 4);
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sensors_changed(&button_1_sensor);
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}
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}
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#endif /* MODEL_N711 */
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if(BUTTON_2_CHECK_IRQ()) {
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if(timer_expired(&debouncetimer[1])) {
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timer_set(&debouncetimer[1], CLOCK_SECOND / 4);
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sensors_changed(&button_2_sensor);
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}
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}
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P0IFG = 0;
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IRCON_P0IF = 0;
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ENERGEST_OFF(ENERGEST_TYPE_IRQ);
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EA = 1;
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}
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/*---------------------------------------------------------------------------*/
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/* We only need this ISR for N740 */
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#ifdef MODEL_N740
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void
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port_1_ISR(void) __interrupt (P1INT_VECTOR)
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{
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EA = 0;
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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/* This ISR is for the entire port. Check if the interrupt was caused by our
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* button's pin. This can only be B1 for N740 */
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if(BUTTON_1_CHECK_IRQ()) {
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if(timer_expired(&debouncetimer[0])) {
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timer_set(&debouncetimer[0], CLOCK_SECOND / 4);
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sensors_changed(&button_1_sensor);
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}
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}
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P1IFG = 0;
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IRCON2_P1IF = 0;
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ENERGEST_OFF(ENERGEST_TYPE_IRQ);
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EA = 1;
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}
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#endif /* MODEL_N740 */
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#pragma restore
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SENSORS_SENSOR(button_1_sensor, BUTTON_1_SENSOR, value_b1, configure_b1, status_b1);
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SENSORS_SENSOR(button_2_sensor, BUTTON_2_SENSOR, value_b2, configure_b2, status_b2);
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#endif /* BUTTON_SENSOR_ON */
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