PHung Tung / SRC_STM32F7

SPKT

Dependents:   WAV

common/InterruptIn.cpp@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #include "InterruptIn.h"
phungductung 0:e87aa4c49e95 17
phungductung 0:e87aa4c49e95 18 #if DEVICE_INTERRUPTIN
phungductung 0:e87aa4c49e95 19
phungductung 0:e87aa4c49e95 20 namespace mbed {
phungductung 0:e87aa4c49e95 21
phungductung 0:e87aa4c49e95 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
phungductung 0:e87aa4c49e95 23 gpio_irq(),
phungductung 0:e87aa4c49e95 24 _rise(),
phungductung 0:e87aa4c49e95 25 _fall() {
phungductung 0:e87aa4c49e95 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
phungductung 0:e87aa4c49e95 27 gpio_init_in(&gpio, pin);
phungductung 0:e87aa4c49e95 28 }
phungductung 0:e87aa4c49e95 29
phungductung 0:e87aa4c49e95 30 InterruptIn::~InterruptIn() {
phungductung 0:e87aa4c49e95 31 gpio_irq_free(&gpio_irq);
phungductung 0:e87aa4c49e95 32 }
phungductung 0:e87aa4c49e95 33
phungductung 0:e87aa4c49e95 34 int InterruptIn::read() {
phungductung 0:e87aa4c49e95 35 return gpio_read(&gpio);
phungductung 0:e87aa4c49e95 36 }
phungductung 0:e87aa4c49e95 37
phungductung 0:e87aa4c49e95 38 void InterruptIn::mode(PinMode pull) {
phungductung 0:e87aa4c49e95 39 gpio_mode(&gpio, pull);
phungductung 0:e87aa4c49e95 40 }
phungductung 0:e87aa4c49e95 41
phungductung 0:e87aa4c49e95 42 void InterruptIn::rise(void (*fptr)(void)) {
phungductung 0:e87aa4c49e95 43 if (fptr) {
phungductung 0:e87aa4c49e95 44 _rise.attach(fptr);
phungductung 0:e87aa4c49e95 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
phungductung 0:e87aa4c49e95 46 } else {
phungductung 0:e87aa4c49e95 47 _rise.attach(NULL);
phungductung 0:e87aa4c49e95 48 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
phungductung 0:e87aa4c49e95 49 }
phungductung 0:e87aa4c49e95 50 }
phungductung 0:e87aa4c49e95 51
phungductung 0:e87aa4c49e95 52 void InterruptIn::fall(void (*fptr)(void)) {
phungductung 0:e87aa4c49e95 53 if (fptr) {
phungductung 0:e87aa4c49e95 54 _fall.attach(fptr);
phungductung 0:e87aa4c49e95 55 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
phungductung 0:e87aa4c49e95 56 } else {
phungductung 0:e87aa4c49e95 57 _fall.attach(NULL);
phungductung 0:e87aa4c49e95 58 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
phungductung 0:e87aa4c49e95 59 }
phungductung 0:e87aa4c49e95 60 }
phungductung 0:e87aa4c49e95 61
phungductung 0:e87aa4c49e95 62 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
phungductung 0:e87aa4c49e95 63 InterruptIn *handler = (InterruptIn*)id;
phungductung 0:e87aa4c49e95 64 switch (event) {
phungductung 0:e87aa4c49e95 65 case IRQ_RISE: handler->_rise.call(); break;
phungductung 0:e87aa4c49e95 66 case IRQ_FALL: handler->_fall.call(); break;
phungductung 0:e87aa4c49e95 67 case IRQ_NONE: break;
phungductung 0:e87aa4c49e95 68 }
phungductung 0:e87aa4c49e95 69 }
phungductung 0:e87aa4c49e95 70
phungductung 0:e87aa4c49e95 71 void InterruptIn::enable_irq() {
phungductung 0:e87aa4c49e95 72 gpio_irq_enable(&gpio_irq);
phungductung 0:e87aa4c49e95 73 }
phungductung 0:e87aa4c49e95 74
phungductung 0:e87aa4c49e95 75 void InterruptIn::disable_irq() {
phungductung 0:e87aa4c49e95 76 gpio_irq_disable(&gpio_irq);
phungductung 0:e87aa4c49e95 77 }
phungductung 0:e87aa4c49e95 78
phungductung 0:e87aa4c49e95 79 #ifdef MBED_OPERATORS
phungductung 0:e87aa4c49e95 80 InterruptIn::operator int() {
phungductung 0:e87aa4c49e95 81 return read();
phungductung 0:e87aa4c49e95 82 }
phungductung 0:e87aa4c49e95 83 #endif
phungductung 0:e87aa4c49e95 84
phungductung 0:e87aa4c49e95 85 } // namespace mbed
phungductung 0:e87aa4c49e95 86
phungductung 0:e87aa4c49e95 87 #endif