Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/InterruptIn.cpp@1:ebce2ad32f95, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 03:07:12 2015 +0000
Revision:
1:ebce2ad32f95
Parent:
0:ba7650f404af 
Changed the RCC timeout value to 500 ms, so total code startup time before program starts running is ~1s. Hopefully no side-effects from lower startup timeouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "InterruptIn.h"
aravindsv 0:ba7650f404af 17
aravindsv 0:ba7650f404af 18 #if DEVICE_INTERRUPTIN
aravindsv 0:ba7650f404af 19
aravindsv 0:ba7650f404af 20 namespace mbed {
aravindsv 0:ba7650f404af 21
aravindsv 0:ba7650f404af 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
aravindsv 0:ba7650f404af 23 gpio_irq(),
aravindsv 0:ba7650f404af 24 _rise(),
aravindsv 0:ba7650f404af 25 _fall() {
aravindsv 0:ba7650f404af 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
aravindsv 0:ba7650f404af 27 gpio_init_in(&gpio, pin);
aravindsv 0:ba7650f404af 28 }
aravindsv 0:ba7650f404af 29
aravindsv 0:ba7650f404af 30 InterruptIn::~InterruptIn() {
aravindsv 0:ba7650f404af 31 gpio_irq_free(&gpio_irq);
aravindsv 0:ba7650f404af 32 }
aravindsv 0:ba7650f404af 33
aravindsv 0:ba7650f404af 34 int InterruptIn::read() {
aravindsv 0:ba7650f404af 35 return gpio_read(&gpio);
aravindsv 0:ba7650f404af 36 }
aravindsv 0:ba7650f404af 37
aravindsv 0:ba7650f404af 38 void InterruptIn::mode(PinMode pull) {
aravindsv 0:ba7650f404af 39 gpio_mode(&gpio, pull);
aravindsv 0:ba7650f404af 40 }
aravindsv 0:ba7650f404af 41
aravindsv 0:ba7650f404af 42 void InterruptIn::rise(void (*fptr)(void)) {
aravindsv 0:ba7650f404af 43 if (fptr) {
aravindsv 0:ba7650f404af 44 _rise.attach(fptr);
aravindsv 0:ba7650f404af 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
aravindsv 0:ba7650f404af 46 } else {
aravindsv 0:ba7650f404af 47 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
aravindsv 0:ba7650f404af 48 }
aravindsv 0:ba7650f404af 49 }
aravindsv 0:ba7650f404af 50
aravindsv 0:ba7650f404af 51 void InterruptIn::fall(void (*fptr)(void)) {
aravindsv 0:ba7650f404af 52 if (fptr) {
aravindsv 0:ba7650f404af 53 _fall.attach(fptr);
aravindsv 0:ba7650f404af 54 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
aravindsv 0:ba7650f404af 55 } else {
aravindsv 0:ba7650f404af 56 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
aravindsv 0:ba7650f404af 57 }
aravindsv 0:ba7650f404af 58 }
aravindsv 0:ba7650f404af 59
aravindsv 0:ba7650f404af 60 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
aravindsv 0:ba7650f404af 61 InterruptIn *handler = (InterruptIn*)id;
aravindsv 0:ba7650f404af 62 switch (event) {
aravindsv 0:ba7650f404af 63 case IRQ_RISE: handler->_rise.call(); break;
aravindsv 0:ba7650f404af 64 case IRQ_FALL: handler->_fall.call(); break;
aravindsv 0:ba7650f404af 65 case IRQ_NONE: break;
aravindsv 0:ba7650f404af 66 }
aravindsv 0:ba7650f404af 67 }
aravindsv 0:ba7650f404af 68
aravindsv 0:ba7650f404af 69 void InterruptIn::enable_irq() {
aravindsv 0:ba7650f404af 70 gpio_irq_enable(&gpio_irq);
aravindsv 0:ba7650f404af 71 }
aravindsv 0:ba7650f404af 72
aravindsv 0:ba7650f404af 73 void InterruptIn::disable_irq() {
aravindsv 0:ba7650f404af 74 gpio_irq_disable(&gpio_irq);
aravindsv 0:ba7650f404af 75 }
aravindsv 0:ba7650f404af 76
aravindsv 0:ba7650f404af 77 #ifdef MBED_OPERATORS
aravindsv 0:ba7650f404af 78 InterruptIn::operator int() {
aravindsv 0:ba7650f404af 79 return read();
aravindsv 0:ba7650f404af 80 }
aravindsv 0:ba7650f404af 81 #endif
aravindsv 0:ba7650f404af 82
aravindsv 0:ba7650f404af 83 } // namespace mbed
aravindsv 0:ba7650f404af 84
aravindsv 0:ba7650f404af 85 #endif