PHung Tung / WAV2

SPKT

Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

mbed_src_STM32F7/common/InterruptIn.cpp@0:aa3fc5ad02f7, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 09:08:29 2019 +0000
Revision:
0:aa3fc5ad02f7
SPKT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:aa3fc5ad02f7 1 /* mbed Microcontroller Library
phungductung 0:aa3fc5ad02f7 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:aa3fc5ad02f7 3 *
phungductung 0:aa3fc5ad02f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:aa3fc5ad02f7 5 * you may not use this file except in compliance with the License.
phungductung 0:aa3fc5ad02f7 6 * You may obtain a copy of the License at
phungductung 0:aa3fc5ad02f7 7 *
phungductung 0:aa3fc5ad02f7 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:aa3fc5ad02f7 9 *
phungductung 0:aa3fc5ad02f7 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:aa3fc5ad02f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:aa3fc5ad02f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:aa3fc5ad02f7 13 * See the License for the specific language governing permissions and
phungductung 0:aa3fc5ad02f7 14 * limitations under the License.
phungductung 0:aa3fc5ad02f7 15 */
phungductung 0:aa3fc5ad02f7 16 #include "InterruptIn.h"
phungductung 0:aa3fc5ad02f7 17
phungductung 0:aa3fc5ad02f7 18 #if DEVICE_INTERRUPTIN
phungductung 0:aa3fc5ad02f7 19
phungductung 0:aa3fc5ad02f7 20 namespace mbed {
phungductung 0:aa3fc5ad02f7 21
phungductung 0:aa3fc5ad02f7 22 InterruptIn::InterruptIn(PinName pin) : gpio(),
phungductung 0:aa3fc5ad02f7 23 gpio_irq(),
phungductung 0:aa3fc5ad02f7 24 _rise(),
phungductung 0:aa3fc5ad02f7 25 _fall() {
phungductung 0:aa3fc5ad02f7 26 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
phungductung 0:aa3fc5ad02f7 27 gpio_init_in(&gpio, pin);
phungductung 0:aa3fc5ad02f7 28 }
phungductung 0:aa3fc5ad02f7 29
phungductung 0:aa3fc5ad02f7 30 InterruptIn::~InterruptIn() {
phungductung 0:aa3fc5ad02f7 31 gpio_irq_free(&gpio_irq);
phungductung 0:aa3fc5ad02f7 32 }
phungductung 0:aa3fc5ad02f7 33
phungductung 0:aa3fc5ad02f7 34 int InterruptIn::read() {
phungductung 0:aa3fc5ad02f7 35 return gpio_read(&gpio);
phungductung 0:aa3fc5ad02f7 36 }
phungductung 0:aa3fc5ad02f7 37
phungductung 0:aa3fc5ad02f7 38 void InterruptIn::mode(PinMode pull) {
phungductung 0:aa3fc5ad02f7 39 gpio_mode(&gpio, pull);
phungductung 0:aa3fc5ad02f7 40 }
phungductung 0:aa3fc5ad02f7 41
phungductung 0:aa3fc5ad02f7 42 void InterruptIn::rise(void (*fptr)(void)) {
phungductung 0:aa3fc5ad02f7 43 if (fptr) {
phungductung 0:aa3fc5ad02f7 44 _rise.attach(fptr);
phungductung 0:aa3fc5ad02f7 45 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
phungductung 0:aa3fc5ad02f7 46 } else {
phungductung 0:aa3fc5ad02f7 47 _rise.attach(NULL);
phungductung 0:aa3fc5ad02f7 48 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
phungductung 0:aa3fc5ad02f7 49 }
phungductung 0:aa3fc5ad02f7 50 }
phungductung 0:aa3fc5ad02f7 51
phungductung 0:aa3fc5ad02f7 52 void InterruptIn::fall(void (*fptr)(void)) {
phungductung 0:aa3fc5ad02f7 53 if (fptr) {
phungductung 0:aa3fc5ad02f7 54 _fall.attach(fptr);
phungductung 0:aa3fc5ad02f7 55 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
phungductung 0:aa3fc5ad02f7 56 } else {
phungductung 0:aa3fc5ad02f7 57 _fall.attach(NULL);
phungductung 0:aa3fc5ad02f7 58 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
phungductung 0:aa3fc5ad02f7 59 }
phungductung 0:aa3fc5ad02f7 60 }
phungductung 0:aa3fc5ad02f7 61
phungductung 0:aa3fc5ad02f7 62 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
phungductung 0:aa3fc5ad02f7 63 InterruptIn *handler = (InterruptIn*)id;
phungductung 0:aa3fc5ad02f7 64 switch (event) {
phungductung 0:aa3fc5ad02f7 65 case IRQ_RISE: handler->_rise.call(); break;
phungductung 0:aa3fc5ad02f7 66 case IRQ_FALL: handler->_fall.call(); break;
phungductung 0:aa3fc5ad02f7 67 case IRQ_NONE: break;
phungductung 0:aa3fc5ad02f7 68 }
phungductung 0:aa3fc5ad02f7 69 }
phungductung 0:aa3fc5ad02f7 70
phungductung 0:aa3fc5ad02f7 71 void InterruptIn::enable_irq() {
phungductung 0:aa3fc5ad02f7 72 gpio_irq_enable(&gpio_irq);
phungductung 0:aa3fc5ad02f7 73 }
phungductung 0:aa3fc5ad02f7 74
phungductung 0:aa3fc5ad02f7 75 void InterruptIn::disable_irq() {
phungductung 0:aa3fc5ad02f7 76 gpio_irq_disable(&gpio_irq);
phungductung 0:aa3fc5ad02f7 77 }
phungductung 0:aa3fc5ad02f7 78
phungductung 0:aa3fc5ad02f7 79 #ifdef MBED_OPERATORS
phungductung 0:aa3fc5ad02f7 80 InterruptIn::operator int() {
phungductung 0:aa3fc5ad02f7 81 return read();
phungductung 0:aa3fc5ad02f7 82 }
phungductung 0:aa3fc5ad02f7 83 #endif
phungductung 0:aa3fc5ad02f7 84
phungductung 0:aa3fc5ad02f7 85 } // namespace mbed
phungductung 0:aa3fc5ad02f7 86
phungductung 0:aa3fc5ad02f7 87 #endif