fix LPC812 PWM
Fork of mbed-dev by
common/InterruptIn.cpp
- Committer:
- nameless129
- Date:
- 2016-05-16
- Revision:
- 129:2e517c56bcfb
- Parent:
- 30:748c8b6e75b1
File content as of revision 129:2e517c56bcfb:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "InterruptIn.h" #if DEVICE_INTERRUPTIN namespace mbed { InterruptIn::InterruptIn(PinName pin) : gpio(), gpio_irq(), _rise(), _fall() { gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this); gpio_init_in(&gpio, pin); } InterruptIn::~InterruptIn() { gpio_irq_free(&gpio_irq); } int InterruptIn::read() { return gpio_read(&gpio); } void InterruptIn::mode(PinMode pull) { gpio_mode(&gpio, pull); } void InterruptIn::rise(void (*fptr)(void)) { if (fptr) { _rise.attach(fptr); gpio_irq_set(&gpio_irq, IRQ_RISE, 1); } else { _rise.attach(NULL); gpio_irq_set(&gpio_irq, IRQ_RISE, 0); } } void InterruptIn::fall(void (*fptr)(void)) { if (fptr) { _fall.attach(fptr); gpio_irq_set(&gpio_irq, IRQ_FALL, 1); } else { _fall.attach(NULL); gpio_irq_set(&gpio_irq, IRQ_FALL, 0); } } void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) { InterruptIn *handler = (InterruptIn*)id; switch (event) { case IRQ_RISE: handler->_rise.call(); break; case IRQ_FALL: handler->_fall.call(); break; case IRQ_NONE: break; } } void InterruptIn::enable_irq() { gpio_irq_enable(&gpio_irq); } void InterruptIn::disable_irq() { gpio_irq_disable(&gpio_irq); } #ifdef MBED_OPERATORS InterruptIn::operator int() { return read(); } #endif } // namespace mbed #endif