Yihui Xiong / BLE_NODE_TEST

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   BLE_API nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

mbed-src/common/InterruptIn.cpp@9:05f0b5a3a70a, 2014-10-29 (annotated)

Committer:
yihui
Date:
Wed Oct 29 06:23:47 2014 +0000
Revision:
9:05f0b5a3a70a
initial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 9:05f0b5a3a70a 1 /* mbed Microcontroller Library
yihui 9:05f0b5a3a70a 2 * Copyright (c) 2006-2013 ARM Limited
yihui 9:05f0b5a3a70a 3 *
yihui 9:05f0b5a3a70a 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 9:05f0b5a3a70a 5 * you may not use this file except in compliance with the License.
yihui 9:05f0b5a3a70a 6 * You may obtain a copy of the License at
yihui 9:05f0b5a3a70a 7 *
yihui 9:05f0b5a3a70a 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 9:05f0b5a3a70a 9 *
yihui 9:05f0b5a3a70a 10 * Unless required by applicable law or agreed to in writing, software
yihui 9:05f0b5a3a70a 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 9:05f0b5a3a70a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 9:05f0b5a3a70a 13 * See the License for the specific language governing permissions and
yihui 9:05f0b5a3a70a 14 * limitations under the License.
yihui 9:05f0b5a3a70a 15 */
yihui 9:05f0b5a3a70a 16 #include "InterruptIn.h"
yihui 9:05f0b5a3a70a 17
yihui 9:05f0b5a3a70a 18 #if DEVICE_INTERRUPTIN
yihui 9:05f0b5a3a70a 19
yihui 9:05f0b5a3a70a 20 namespace mbed {
yihui 9:05f0b5a3a70a 21
yihui 9:05f0b5a3a70a 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
yihui 9:05f0b5a3a70a 23 gpio_irq(),
yihui 9:05f0b5a3a70a 24 _rise(),
yihui 9:05f0b5a3a70a 25 _fall() {
yihui 9:05f0b5a3a70a 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
yihui 9:05f0b5a3a70a 27 gpio_init_in(&gpio, pin);
yihui 9:05f0b5a3a70a 28 }
yihui 9:05f0b5a3a70a 29
yihui 9:05f0b5a3a70a 30 InterruptIn::~InterruptIn() {
yihui 9:05f0b5a3a70a 31 gpio_irq_free(&gpio_irq);
yihui 9:05f0b5a3a70a 32 }
yihui 9:05f0b5a3a70a 33
yihui 9:05f0b5a3a70a 34 int InterruptIn::read() {
yihui 9:05f0b5a3a70a 35 return gpio_read(&gpio);
yihui 9:05f0b5a3a70a 36 }
yihui 9:05f0b5a3a70a 37
yihui 9:05f0b5a3a70a 38 void InterruptIn::mode(PinMode pull) {
yihui 9:05f0b5a3a70a 39 gpio_mode(&gpio, pull);
yihui 9:05f0b5a3a70a 40 }
yihui 9:05f0b5a3a70a 41
yihui 9:05f0b5a3a70a 42 void InterruptIn::rise(void (*fptr)(void)) {
yihui 9:05f0b5a3a70a 43 if (fptr) {
yihui 9:05f0b5a3a70a 44 _rise.attach(fptr);
yihui 9:05f0b5a3a70a 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
yihui 9:05f0b5a3a70a 46 } else {
yihui 9:05f0b5a3a70a 47 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
yihui 9:05f0b5a3a70a 48 }
yihui 9:05f0b5a3a70a 49 }
yihui 9:05f0b5a3a70a 50
yihui 9:05f0b5a3a70a 51 void InterruptIn::fall(void (*fptr)(void)) {
yihui 9:05f0b5a3a70a 52 if (fptr) {
yihui 9:05f0b5a3a70a 53 _fall.attach(fptr);
yihui 9:05f0b5a3a70a 54 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
yihui 9:05f0b5a3a70a 55 } else {
yihui 9:05f0b5a3a70a 56 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
yihui 9:05f0b5a3a70a 57 }
yihui 9:05f0b5a3a70a 58 }
yihui 9:05f0b5a3a70a 59
yihui 9:05f0b5a3a70a 60 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
yihui 9:05f0b5a3a70a 61 InterruptIn *handler = (InterruptIn*)id;
yihui 9:05f0b5a3a70a 62 switch (event) {
yihui 9:05f0b5a3a70a 63 case IRQ_RISE: handler->_rise.call(); break;
yihui 9:05f0b5a3a70a 64 case IRQ_FALL: handler->_fall.call(); break;
yihui 9:05f0b5a3a70a 65 case IRQ_NONE: break;
yihui 9:05f0b5a3a70a 66 }
yihui 9:05f0b5a3a70a 67 }
yihui 9:05f0b5a3a70a 68
yihui 9:05f0b5a3a70a 69 void InterruptIn::enable_irq() {
yihui 9:05f0b5a3a70a 70 gpio_irq_enable(&gpio_irq);
yihui 9:05f0b5a3a70a 71 }
yihui 9:05f0b5a3a70a 72
yihui 9:05f0b5a3a70a 73 void InterruptIn::disable_irq() {
yihui 9:05f0b5a3a70a 74 gpio_irq_disable(&gpio_irq);
yihui 9:05f0b5a3a70a 75 }
yihui 9:05f0b5a3a70a 76
yihui 9:05f0b5a3a70a 77 #ifdef MBED_OPERATORS
yihui 9:05f0b5a3a70a 78 InterruptIn::operator int() {
yihui 9:05f0b5a3a70a 79 return read();
yihui 9:05f0b5a3a70a 80 }
yihui 9:05f0b5a3a70a 81 #endif
yihui 9:05f0b5a3a70a 82
yihui 9:05f0b5a3a70a 83 } // namespace mbed
yihui 9:05f0b5a3a70a 84
yihui 9:05f0b5a3a70a 85 #endif