Modified mbed library sources only for STM32F030K6, LQFP32 (0.8mm pitch) package, 32K Flash, 4K SRAM. Compiler target: Nucleo 32F030R8
Fork of mbed-src by
Diff: cpp/InterruptIn.cpp
- Revision:
- 0:fd0d7bdfcdc2
- Child:
- 2:143cac498751
diff -r 000000000000 -r fd0d7bdfcdc2 cpp/InterruptIn.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/cpp/InterruptIn.cpp Tue Nov 20 17:24:08 2012 +0000 @@ -0,0 +1,83 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2012 ARM Limited + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "InterruptIn.h" + +#if DEVICE_INTERRUPTIN + +#include "error.h" + +namespace mbed { + +InterruptIn::InterruptIn(PinName pin) { + if (gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this) != 0) + error("[ERROR] InterruptIn init\n"); + gpio_init(&gpio, pin, PIN_INPUT); +} + +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 { + 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 { + 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; + } +} + +#ifdef MBED_OPERATORS +InterruptIn::operator int() { + return read(); +} +#endif + +} // namespace mbed + +#endif