DSP Book Yeditepe / mbed_f401re

mbed library sources with internal temperature sensor for nucleo f401

common/InterruptIn.cpp@0:7e2bd16f80af, 2015-01-17 (annotated)

Committer:
elessair
Date:
Sat Jan 17 18:03:58 2015 +0000
Revision:
0:7e2bd16f80af
nucleo f401re internal temperature added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:7e2bd16f80af 1 /* mbed Microcontroller Library
elessair 0:7e2bd16f80af 2 * Copyright (c) 2006-2013 ARM Limited
elessair 0:7e2bd16f80af 3 *
elessair 0:7e2bd16f80af 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:7e2bd16f80af 5 * you may not use this file except in compliance with the License.
elessair 0:7e2bd16f80af 6 * You may obtain a copy of the License at
elessair 0:7e2bd16f80af 7 *
elessair 0:7e2bd16f80af 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:7e2bd16f80af 9 *
elessair 0:7e2bd16f80af 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:7e2bd16f80af 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:7e2bd16f80af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:7e2bd16f80af 13 * See the License for the specific language governing permissions and
elessair 0:7e2bd16f80af 14 * limitations under the License.
elessair 0:7e2bd16f80af 15 */
elessair 0:7e2bd16f80af 16 #include "InterruptIn.h"
elessair 0:7e2bd16f80af 17
elessair 0:7e2bd16f80af 18 #if DEVICE_INTERRUPTIN
elessair 0:7e2bd16f80af 19
elessair 0:7e2bd16f80af 20 namespace mbed {
elessair 0:7e2bd16f80af 21
elessair 0:7e2bd16f80af 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
elessair 0:7e2bd16f80af 23 gpio_irq(),
elessair 0:7e2bd16f80af 24 _rise(),
elessair 0:7e2bd16f80af 25 _fall() {
elessair 0:7e2bd16f80af 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
elessair 0:7e2bd16f80af 27 gpio_init_in(&gpio, pin);
elessair 0:7e2bd16f80af 28 }
elessair 0:7e2bd16f80af 29
elessair 0:7e2bd16f80af 30 InterruptIn::~InterruptIn() {
elessair 0:7e2bd16f80af 31 gpio_irq_free(&gpio_irq);
elessair 0:7e2bd16f80af 32 }
elessair 0:7e2bd16f80af 33
elessair 0:7e2bd16f80af 34 int InterruptIn::read() {
elessair 0:7e2bd16f80af 35 return gpio_read(&gpio);
elessair 0:7e2bd16f80af 36 }
elessair 0:7e2bd16f80af 37
elessair 0:7e2bd16f80af 38 void InterruptIn::mode(PinMode pull) {
elessair 0:7e2bd16f80af 39 gpio_mode(&gpio, pull);
elessair 0:7e2bd16f80af 40 }
elessair 0:7e2bd16f80af 41
elessair 0:7e2bd16f80af 42 void InterruptIn::rise(void (*fptr)(void)) {
elessair 0:7e2bd16f80af 43 if (fptr) {
elessair 0:7e2bd16f80af 44 _rise.attach(fptr);
elessair 0:7e2bd16f80af 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
elessair 0:7e2bd16f80af 46 } else {
elessair 0:7e2bd16f80af 47 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
elessair 0:7e2bd16f80af 48 }
elessair 0:7e2bd16f80af 49 }
elessair 0:7e2bd16f80af 50
elessair 0:7e2bd16f80af 51 void InterruptIn::fall(void (*fptr)(void)) {
elessair 0:7e2bd16f80af 52 if (fptr) {
elessair 0:7e2bd16f80af 53 _fall.attach(fptr);
elessair 0:7e2bd16f80af 54 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
elessair 0:7e2bd16f80af 55 } else {
elessair 0:7e2bd16f80af 56 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
elessair 0:7e2bd16f80af 57 }
elessair 0:7e2bd16f80af 58 }
elessair 0:7e2bd16f80af 59
elessair 0:7e2bd16f80af 60 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
elessair 0:7e2bd16f80af 61 InterruptIn *handler = (InterruptIn*)id;
elessair 0:7e2bd16f80af 62 switch (event) {
elessair 0:7e2bd16f80af 63 case IRQ_RISE: handler->_rise.call(); break;
elessair 0:7e2bd16f80af 64 case IRQ_FALL: handler->_fall.call(); break;
elessair 0:7e2bd16f80af 65 case IRQ_NONE: break;
elessair 0:7e2bd16f80af 66 }
elessair 0:7e2bd16f80af 67 }
elessair 0:7e2bd16f80af 68
elessair 0:7e2bd16f80af 69 void InterruptIn::enable_irq() {
elessair 0:7e2bd16f80af 70 gpio_irq_enable(&gpio_irq);
elessair 0:7e2bd16f80af 71 }
elessair 0:7e2bd16f80af 72
elessair 0:7e2bd16f80af 73 void InterruptIn::disable_irq() {
elessair 0:7e2bd16f80af 74 gpio_irq_disable(&gpio_irq);
elessair 0:7e2bd16f80af 75 }
elessair 0:7e2bd16f80af 76
elessair 0:7e2bd16f80af 77 #ifdef MBED_OPERATORS
elessair 0:7e2bd16f80af 78 InterruptIn::operator int() {
elessair 0:7e2bd16f80af 79 return read();
elessair 0:7e2bd16f80af 80 }
elessair 0:7e2bd16f80af 81 #endif
elessair 0:7e2bd16f80af 82
elessair 0:7e2bd16f80af 83 } // namespace mbed
elessair 0:7e2bd16f80af 84
elessair 0:7e2bd16f80af 85 #endif