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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/InterruptIn.cpp@635:a11c0372f0ba, 2015-09-30 (annotated)

Committer:
mbed_official
Date:
Wed Sep 30 17:00:09 2015 +0100
Revision:
635:a11c0372f0ba
Parent:
212:34d62c0b2af6 
Synchronized with git revision d29c98dae61be0946ddf3a3c641c7726056f9452



Full URL: https://github.com/mbedmicro/mbed/commit/d29c98dae61be0946ddf3a3c641c7726056f9452/



Added support for SAMW25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #include "InterruptIn.h"
bogdanm 13:0645d8841f51 17
bogdanm 13:0645d8841f51 18 #if DEVICE_INTERRUPTIN
bogdanm 13:0645d8841f51 19
bogdanm 13:0645d8841f51 20 namespace mbed {
bogdanm 13:0645d8841f51 21
mbed_official 212:34d62c0b2af6 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
mbed_official 212:34d62c0b2af6 23 gpio_irq(),
mbed_official 212:34d62c0b2af6 24 _rise(),
mbed_official 212:34d62c0b2af6 25 _fall() {
bogdanm 13:0645d8841f51 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
mbed_official 113:65a335a675de 27 gpio_init_in(&gpio, pin);
bogdanm 13:0645d8841f51 28 }
bogdanm 13:0645d8841f51 29
bogdanm 13:0645d8841f51 30 InterruptIn::~InterruptIn() {
bogdanm 13:0645d8841f51 31 gpio_irq_free(&gpio_irq);
bogdanm 13:0645d8841f51 32 }
bogdanm 13:0645d8841f51 33
bogdanm 13:0645d8841f51 34 int InterruptIn::read() {
bogdanm 13:0645d8841f51 35 return gpio_read(&gpio);
bogdanm 13:0645d8841f51 36 }
bogdanm 13:0645d8841f51 37
bogdanm 13:0645d8841f51 38 void InterruptIn::mode(PinMode pull) {
bogdanm 13:0645d8841f51 39 gpio_mode(&gpio, pull);
bogdanm 13:0645d8841f51 40 }
bogdanm 13:0645d8841f51 41
mbed_official 36:ab3ee77451e7 42 void InterruptIn::rise(void (*fptr)(void)) {
bogdanm 13:0645d8841f51 43 if (fptr) {
mbed_official 36:ab3ee77451e7 44 _rise.attach(fptr);
bogdanm 13:0645d8841f51 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
bogdanm 13:0645d8841f51 46 } else {
bogdanm 13:0645d8841f51 47 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
bogdanm 13:0645d8841f51 48 }
bogdanm 13:0645d8841f51 49 }
bogdanm 13:0645d8841f51 50
mbed_official 36:ab3ee77451e7 51 void InterruptIn::fall(void (*fptr)(void)) {
bogdanm 13:0645d8841f51 52 if (fptr) {
mbed_official 36:ab3ee77451e7 53 _fall.attach(fptr);
bogdanm 13:0645d8841f51 54 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
bogdanm 13:0645d8841f51 55 } else {
bogdanm 13:0645d8841f51 56 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
bogdanm 13:0645d8841f51 57 }
bogdanm 13:0645d8841f51 58 }
bogdanm 13:0645d8841f51 59
bogdanm 13:0645d8841f51 60 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
bogdanm 13:0645d8841f51 61 InterruptIn *handler = (InterruptIn*)id;
bogdanm 13:0645d8841f51 62 switch (event) {
bogdanm 13:0645d8841f51 63 case IRQ_RISE: handler->_rise.call(); break;
bogdanm 13:0645d8841f51 64 case IRQ_FALL: handler->_fall.call(); break;
bogdanm 13:0645d8841f51 65 case IRQ_NONE: break;
bogdanm 13:0645d8841f51 66 }
bogdanm 13:0645d8841f51 67 }
bogdanm 13:0645d8841f51 68
mbed_official 35:371630885ad6 69 void InterruptIn::enable_irq() {
mbed_official 35:371630885ad6 70 gpio_irq_enable(&gpio_irq);
mbed_official 35:371630885ad6 71 }
mbed_official 35:371630885ad6 72
mbed_official 35:371630885ad6 73 void InterruptIn::disable_irq() {
mbed_official 35:371630885ad6 74 gpio_irq_disable(&gpio_irq);
mbed_official 35:371630885ad6 75 }
mbed_official 35:371630885ad6 76
bogdanm 13:0645d8841f51 77 #ifdef MBED_OPERATORS
bogdanm 13:0645d8841f51 78 InterruptIn::operator int() {
bogdanm 13:0645d8841f51 79 return read();
bogdanm 13:0645d8841f51 80 }
bogdanm 13:0645d8841f51 81 #endif
bogdanm 13:0645d8841f51 82
bogdanm 13:0645d8841f51 83 } // namespace mbed
bogdanm 13:0645d8841f51 84
bogdanm 13:0645d8841f51 85 #endif