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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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@113:65a335a675de, 2014-03-10 (annotated)

Committer:
mbed_official
Date:
Mon Mar 10 11:30:07 2014 +0000
Revision:
113:65a335a675de
Parent:
36:ab3ee77451e7
Child:
212:34d62c0b2af6
Synchronized with git revision 423ddcb86e83e2e0d599ca7106d436eb3c47e6dd



Full URL: https://github.com/mbedmicro/mbed/commit/423ddcb86e83e2e0d599ca7106d436eb3c47e6dd/



proposed change of gpio_api (new update pull request)

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
bogdanm 13:0645d8841f51 22 InterruptIn::InterruptIn(PinName pin) {
bogdanm 13:0645d8841f51 23 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
mbed_official 113:65a335a675de 24 gpio_init_in(&gpio, pin);
bogdanm 13:0645d8841f51 25 }
bogdanm 13:0645d8841f51 26
bogdanm 13:0645d8841f51 27 InterruptIn::~InterruptIn() {
bogdanm 13:0645d8841f51 28 gpio_irq_free(&gpio_irq);
bogdanm 13:0645d8841f51 29 }
bogdanm 13:0645d8841f51 30
bogdanm 13:0645d8841f51 31 int InterruptIn::read() {
bogdanm 13:0645d8841f51 32 return gpio_read(&gpio);
bogdanm 13:0645d8841f51 33 }
bogdanm 13:0645d8841f51 34
bogdanm 13:0645d8841f51 35 void InterruptIn::mode(PinMode pull) {
bogdanm 13:0645d8841f51 36 gpio_mode(&gpio, pull);
bogdanm 13:0645d8841f51 37 }
bogdanm 13:0645d8841f51 38
mbed_official 36:ab3ee77451e7 39 void InterruptIn::rise(void (*fptr)(void)) {
bogdanm 13:0645d8841f51 40 if (fptr) {
mbed_official 36:ab3ee77451e7 41 _rise.attach(fptr);
bogdanm 13:0645d8841f51 42 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
bogdanm 13:0645d8841f51 43 } else {
bogdanm 13:0645d8841f51 44 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
bogdanm 13:0645d8841f51 45 }
bogdanm 13:0645d8841f51 46 }
bogdanm 13:0645d8841f51 47
mbed_official 36:ab3ee77451e7 48 void InterruptIn::fall(void (*fptr)(void)) {
bogdanm 13:0645d8841f51 49 if (fptr) {
mbed_official 36:ab3ee77451e7 50 _fall.attach(fptr);
bogdanm 13:0645d8841f51 51 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
bogdanm 13:0645d8841f51 52 } else {
bogdanm 13:0645d8841f51 53 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
bogdanm 13:0645d8841f51 54 }
bogdanm 13:0645d8841f51 55 }
bogdanm 13:0645d8841f51 56
bogdanm 13:0645d8841f51 57 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
bogdanm 13:0645d8841f51 58 InterruptIn *handler = (InterruptIn*)id;
bogdanm 13:0645d8841f51 59 switch (event) {
bogdanm 13:0645d8841f51 60 case IRQ_RISE: handler->_rise.call(); break;
bogdanm 13:0645d8841f51 61 case IRQ_FALL: handler->_fall.call(); break;
bogdanm 13:0645d8841f51 62 case IRQ_NONE: break;
bogdanm 13:0645d8841f51 63 }
bogdanm 13:0645d8841f51 64 }
bogdanm 13:0645d8841f51 65
mbed_official 35:371630885ad6 66 void InterruptIn::enable_irq() {
mbed_official 35:371630885ad6 67 gpio_irq_enable(&gpio_irq);
mbed_official 35:371630885ad6 68 }
mbed_official 35:371630885ad6 69
mbed_official 35:371630885ad6 70 void InterruptIn::disable_irq() {
mbed_official 35:371630885ad6 71 gpio_irq_disable(&gpio_irq);
mbed_official 35:371630885ad6 72 }
mbed_official 35:371630885ad6 73
bogdanm 13:0645d8841f51 74 #ifdef MBED_OPERATORS
bogdanm 13:0645d8841f51 75 InterruptIn::operator int() {
bogdanm 13:0645d8841f51 76 return read();
bogdanm 13:0645d8841f51 77 }
bogdanm 13:0645d8841f51 78 #endif
bogdanm 13:0645d8841f51 79
bogdanm 13:0645d8841f51 80 } // namespace mbed
bogdanm 13:0645d8841f51 81
bogdanm 13:0645d8841f51 82 #endif