Gleb Klochkov / Mbed OS Climatcontroll_Main

Dependencies:   esp8266-driver

Committer:
glebiuskv
Date:
Fri Apr 13 08:53:46 2018 +0000
Revision:
0:2f0e1e23c242
initial

Who changed what in which revision?

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glebiuskv 0:2f0e1e23c242 1 /* mbed Microcontroller Library
glebiuskv 0:2f0e1e23c242 2 * Copyright (c) 2006-2013 ARM Limited
glebiuskv 0:2f0e1e23c242 3 *
glebiuskv 0:2f0e1e23c242 4 * Licensed under the Apache License, Version 2.0 (the "License");
glebiuskv 0:2f0e1e23c242 5 * you may not use this file except in compliance with the License.
glebiuskv 0:2f0e1e23c242 6 * You may obtain a copy of the License at
glebiuskv 0:2f0e1e23c242 7 *
glebiuskv 0:2f0e1e23c242 8 * http://www.apache.org/licenses/LICENSE-2.0
glebiuskv 0:2f0e1e23c242 9 *
glebiuskv 0:2f0e1e23c242 10 * Unless required by applicable law or agreed to in writing, software
glebiuskv 0:2f0e1e23c242 11 * distributed under the License is distributed on an "AS IS" BASIS,
glebiuskv 0:2f0e1e23c242 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
glebiuskv 0:2f0e1e23c242 13 * See the License for the specific language governing permissions and
glebiuskv 0:2f0e1e23c242 14 * limitations under the License.
glebiuskv 0:2f0e1e23c242 15 */
glebiuskv 0:2f0e1e23c242 16 #include "drivers/InterruptIn.h"
glebiuskv 0:2f0e1e23c242 17
glebiuskv 0:2f0e1e23c242 18 #if DEVICE_INTERRUPTIN
glebiuskv 0:2f0e1e23c242 19
glebiuskv 0:2f0e1e23c242 20 namespace mbed {
glebiuskv 0:2f0e1e23c242 21
glebiuskv 0:2f0e1e23c242 22 // Note: This single-parameter constructor exists to maintain binary
glebiuskv 0:2f0e1e23c242 23 // compatibility.
glebiuskv 0:2f0e1e23c242 24 // If not for that, we could simplify by having only the 2-param
glebiuskv 0:2f0e1e23c242 25 // constructor, with a default value for the PinMode.
glebiuskv 0:2f0e1e23c242 26 InterruptIn::InterruptIn(PinName pin) : gpio(),
glebiuskv 0:2f0e1e23c242 27 gpio_irq(),
glebiuskv 0:2f0e1e23c242 28 _rise(NULL),
glebiuskv 0:2f0e1e23c242 29 _fall(NULL) {
glebiuskv 0:2f0e1e23c242 30 // No lock needed in the constructor
glebiuskv 0:2f0e1e23c242 31 irq_init(pin);
glebiuskv 0:2f0e1e23c242 32 gpio_init_in(&gpio, pin);
glebiuskv 0:2f0e1e23c242 33 }
glebiuskv 0:2f0e1e23c242 34
glebiuskv 0:2f0e1e23c242 35 InterruptIn::InterruptIn(PinName pin, PinMode mode) :
glebiuskv 0:2f0e1e23c242 36 gpio(),
glebiuskv 0:2f0e1e23c242 37 gpio_irq(),
glebiuskv 0:2f0e1e23c242 38 _rise(NULL),
glebiuskv 0:2f0e1e23c242 39 _fall(NULL) {
glebiuskv 0:2f0e1e23c242 40 // No lock needed in the constructor
glebiuskv 0:2f0e1e23c242 41 irq_init(pin);
glebiuskv 0:2f0e1e23c242 42 gpio_init_in_ex(&gpio, pin, mode);
glebiuskv 0:2f0e1e23c242 43 }
glebiuskv 0:2f0e1e23c242 44
glebiuskv 0:2f0e1e23c242 45 void InterruptIn::irq_init(PinName pin) {
glebiuskv 0:2f0e1e23c242 46 gpio_irq_init(&gpio_irq, pin, (&InterruptIn::_irq_handler), (uint32_t)this);
glebiuskv 0:2f0e1e23c242 47 }
glebiuskv 0:2f0e1e23c242 48
glebiuskv 0:2f0e1e23c242 49 InterruptIn::~InterruptIn() {
glebiuskv 0:2f0e1e23c242 50 // No lock needed in the destructor
glebiuskv 0:2f0e1e23c242 51 gpio_irq_free(&gpio_irq);
glebiuskv 0:2f0e1e23c242 52 }
glebiuskv 0:2f0e1e23c242 53
glebiuskv 0:2f0e1e23c242 54 int InterruptIn::read() {
glebiuskv 0:2f0e1e23c242 55 // Read only
glebiuskv 0:2f0e1e23c242 56 return gpio_read(&gpio);
glebiuskv 0:2f0e1e23c242 57 }
glebiuskv 0:2f0e1e23c242 58
glebiuskv 0:2f0e1e23c242 59 void InterruptIn::mode(PinMode pull) {
glebiuskv 0:2f0e1e23c242 60 core_util_critical_section_enter();
glebiuskv 0:2f0e1e23c242 61 gpio_mode(&gpio, pull);
glebiuskv 0:2f0e1e23c242 62 core_util_critical_section_exit();
glebiuskv 0:2f0e1e23c242 63 }
glebiuskv 0:2f0e1e23c242 64
glebiuskv 0:2f0e1e23c242 65 void InterruptIn::rise(Callback<void()> func) {
glebiuskv 0:2f0e1e23c242 66 core_util_critical_section_enter();
glebiuskv 0:2f0e1e23c242 67 if (func) {
glebiuskv 0:2f0e1e23c242 68 _rise = func;
glebiuskv 0:2f0e1e23c242 69 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
glebiuskv 0:2f0e1e23c242 70 } else {
glebiuskv 0:2f0e1e23c242 71 _rise = NULL;
glebiuskv 0:2f0e1e23c242 72 gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
glebiuskv 0:2f0e1e23c242 73 }
glebiuskv 0:2f0e1e23c242 74 core_util_critical_section_exit();
glebiuskv 0:2f0e1e23c242 75 }
glebiuskv 0:2f0e1e23c242 76
glebiuskv 0:2f0e1e23c242 77 void InterruptIn::fall(Callback<void()> func) {
glebiuskv 0:2f0e1e23c242 78 core_util_critical_section_enter();
glebiuskv 0:2f0e1e23c242 79 if (func) {
glebiuskv 0:2f0e1e23c242 80 _fall = func;
glebiuskv 0:2f0e1e23c242 81 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
glebiuskv 0:2f0e1e23c242 82 } else {
glebiuskv 0:2f0e1e23c242 83 _fall = NULL;
glebiuskv 0:2f0e1e23c242 84 gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
glebiuskv 0:2f0e1e23c242 85 }
glebiuskv 0:2f0e1e23c242 86 core_util_critical_section_exit();
glebiuskv 0:2f0e1e23c242 87 }
glebiuskv 0:2f0e1e23c242 88
glebiuskv 0:2f0e1e23c242 89 void InterruptIn::_irq_handler(uint32_t id, gpio_irq_event event) {
glebiuskv 0:2f0e1e23c242 90 InterruptIn *handler = (InterruptIn*)id;
glebiuskv 0:2f0e1e23c242 91 switch (event) {
glebiuskv 0:2f0e1e23c242 92 case IRQ_RISE:
glebiuskv 0:2f0e1e23c242 93 if (handler->_rise) {
glebiuskv 0:2f0e1e23c242 94 handler->_rise();
glebiuskv 0:2f0e1e23c242 95 }
glebiuskv 0:2f0e1e23c242 96 break;
glebiuskv 0:2f0e1e23c242 97 case IRQ_FALL:
glebiuskv 0:2f0e1e23c242 98 if (handler->_fall) {
glebiuskv 0:2f0e1e23c242 99 handler->_fall();
glebiuskv 0:2f0e1e23c242 100 }
glebiuskv 0:2f0e1e23c242 101 break;
glebiuskv 0:2f0e1e23c242 102 case IRQ_NONE: break;
glebiuskv 0:2f0e1e23c242 103 }
glebiuskv 0:2f0e1e23c242 104 }
glebiuskv 0:2f0e1e23c242 105
glebiuskv 0:2f0e1e23c242 106 void InterruptIn::enable_irq() {
glebiuskv 0:2f0e1e23c242 107 core_util_critical_section_enter();
glebiuskv 0:2f0e1e23c242 108 gpio_irq_enable(&gpio_irq);
glebiuskv 0:2f0e1e23c242 109 core_util_critical_section_exit();
glebiuskv 0:2f0e1e23c242 110 }
glebiuskv 0:2f0e1e23c242 111
glebiuskv 0:2f0e1e23c242 112 void InterruptIn::disable_irq() {
glebiuskv 0:2f0e1e23c242 113 core_util_critical_section_enter();
glebiuskv 0:2f0e1e23c242 114 gpio_irq_disable(&gpio_irq);
glebiuskv 0:2f0e1e23c242 115 core_util_critical_section_exit();
glebiuskv 0:2f0e1e23c242 116 }
glebiuskv 0:2f0e1e23c242 117
glebiuskv 0:2f0e1e23c242 118 InterruptIn::operator int() {
glebiuskv 0:2f0e1e23c242 119 // Underlying call is atomic
glebiuskv 0:2f0e1e23c242 120 return read();
glebiuskv 0:2f0e1e23c242 121 }
glebiuskv 0:2f0e1e23c242 122
glebiuskv 0:2f0e1e23c242 123 } // namespace mbed
glebiuskv 0:2f0e1e23c242 124
glebiuskv 0:2f0e1e23c242 125 #endif