PHung Tung / SRC_STM32F7

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Dependents:   WAV

api/InterruptIn.h@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #ifndef MBED_INTERRUPTIN_H
phungductung 0:e87aa4c49e95 17 #define MBED_INTERRUPTIN_H
phungductung 0:e87aa4c49e95 18
phungductung 0:e87aa4c49e95 19 #include "platform.h"
phungductung 0:e87aa4c49e95 20
phungductung 0:e87aa4c49e95 21 #if DEVICE_INTERRUPTIN
phungductung 0:e87aa4c49e95 22
phungductung 0:e87aa4c49e95 23 #include "gpio_api.h"
phungductung 0:e87aa4c49e95 24 #include "gpio_irq_api.h"
phungductung 0:e87aa4c49e95 25 #include "FunctionPointer.h"
phungductung 0:e87aa4c49e95 26
phungductung 0:e87aa4c49e95 27 namespace mbed {
phungductung 0:e87aa4c49e95 28
phungductung 0:e87aa4c49e95 29 /** A digital interrupt input, used to call a function on a rising or falling edge
phungductung 0:e87aa4c49e95 30 *
phungductung 0:e87aa4c49e95 31 * Example:
phungductung 0:e87aa4c49e95 32 * @code
phungductung 0:e87aa4c49e95 33 * // Flash an LED while waiting for events
phungductung 0:e87aa4c49e95 34 *
phungductung 0:e87aa4c49e95 35 * #include "mbed.h"
phungductung 0:e87aa4c49e95 36 *
phungductung 0:e87aa4c49e95 37 * InterruptIn event(p16);
phungductung 0:e87aa4c49e95 38 * DigitalOut led(LED1);
phungductung 0:e87aa4c49e95 39 *
phungductung 0:e87aa4c49e95 40 * void trigger() {
phungductung 0:e87aa4c49e95 41 * printf("triggered!\n");
phungductung 0:e87aa4c49e95 42 * }
phungductung 0:e87aa4c49e95 43 *
phungductung 0:e87aa4c49e95 44 * int main() {
phungductung 0:e87aa4c49e95 45 * event.rise(&trigger);
phungductung 0:e87aa4c49e95 46 * while(1) {
phungductung 0:e87aa4c49e95 47 * led = !led;
phungductung 0:e87aa4c49e95 48 * wait(0.25);
phungductung 0:e87aa4c49e95 49 * }
phungductung 0:e87aa4c49e95 50 * }
phungductung 0:e87aa4c49e95 51 * @endcode
phungductung 0:e87aa4c49e95 52 */
phungductung 0:e87aa4c49e95 53 class InterruptIn {
phungductung 0:e87aa4c49e95 54
phungductung 0:e87aa4c49e95 55 public:
phungductung 0:e87aa4c49e95 56
phungductung 0:e87aa4c49e95 57 /** Create an InterruptIn connected to the specified pin
phungductung 0:e87aa4c49e95 58 *
phungductung 0:e87aa4c49e95 59 * @param pin InterruptIn pin to connect to
phungductung 0:e87aa4c49e95 60 * @param name (optional) A string to identify the object
phungductung 0:e87aa4c49e95 61 */
phungductung 0:e87aa4c49e95 62 InterruptIn(PinName pin);
phungductung 0:e87aa4c49e95 63 virtual ~InterruptIn();
phungductung 0:e87aa4c49e95 64
phungductung 0:e87aa4c49e95 65 int read();
phungductung 0:e87aa4c49e95 66 #ifdef MBED_OPERATORS
phungductung 0:e87aa4c49e95 67 operator int();
phungductung 0:e87aa4c49e95 68
phungductung 0:e87aa4c49e95 69 #endif
phungductung 0:e87aa4c49e95 70
phungductung 0:e87aa4c49e95 71 /** Attach a function to call when a rising edge occurs on the input
phungductung 0:e87aa4c49e95 72 *
phungductung 0:e87aa4c49e95 73 * @param fptr A pointer to a void function, or 0 to set as none
phungductung 0:e87aa4c49e95 74 */
phungductung 0:e87aa4c49e95 75 void rise(void (*fptr)(void));
phungductung 0:e87aa4c49e95 76
phungductung 0:e87aa4c49e95 77 /** Attach a member function to call when a rising edge occurs on the input
phungductung 0:e87aa4c49e95 78 *
phungductung 0:e87aa4c49e95 79 * @param tptr pointer to the object to call the member function on
phungductung 0:e87aa4c49e95 80 * @param mptr pointer to the member function to be called
phungductung 0:e87aa4c49e95 81 */
phungductung 0:e87aa4c49e95 82 template<typename T>
phungductung 0:e87aa4c49e95 83 void rise(T* tptr, void (T::*mptr)(void)) {
phungductung 0:e87aa4c49e95 84 _rise.attach(tptr, mptr);
phungductung 0:e87aa4c49e95 85 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
phungductung 0:e87aa4c49e95 86 }
phungductung 0:e87aa4c49e95 87
phungductung 0:e87aa4c49e95 88 /** Attach a function to call when a falling edge occurs on the input
phungductung 0:e87aa4c49e95 89 *
phungductung 0:e87aa4c49e95 90 * @param fptr A pointer to a void function, or 0 to set as none
phungductung 0:e87aa4c49e95 91 */
phungductung 0:e87aa4c49e95 92 void fall(void (*fptr)(void));
phungductung 0:e87aa4c49e95 93
phungductung 0:e87aa4c49e95 94 /** Attach a member function to call when a falling edge occurs on the input
phungductung 0:e87aa4c49e95 95 *
phungductung 0:e87aa4c49e95 96 * @param tptr pointer to the object to call the member function on
phungductung 0:e87aa4c49e95 97 * @param mptr pointer to the member function to be called
phungductung 0:e87aa4c49e95 98 */
phungductung 0:e87aa4c49e95 99 template<typename T>
phungductung 0:e87aa4c49e95 100 void fall(T* tptr, void (T::*mptr)(void)) {
phungductung 0:e87aa4c49e95 101 _fall.attach(tptr, mptr);
phungductung 0:e87aa4c49e95 102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
phungductung 0:e87aa4c49e95 103 }
phungductung 0:e87aa4c49e95 104
phungductung 0:e87aa4c49e95 105 /** Set the input pin mode
phungductung 0:e87aa4c49e95 106 *
phungductung 0:e87aa4c49e95 107 * @param mode PullUp, PullDown, PullNone
phungductung 0:e87aa4c49e95 108 */
phungductung 0:e87aa4c49e95 109 void mode(PinMode pull);
phungductung 0:e87aa4c49e95 110
phungductung 0:e87aa4c49e95 111 /** Enable IRQ. This method depends on hw implementation, might enable one
phungductung 0:e87aa4c49e95 112 * port interrupts. For further information, check gpio_irq_enable().
phungductung 0:e87aa4c49e95 113 */
phungductung 0:e87aa4c49e95 114 void enable_irq();
phungductung 0:e87aa4c49e95 115
phungductung 0:e87aa4c49e95 116 /** Disable IRQ. This method depends on hw implementation, might disable one
phungductung 0:e87aa4c49e95 117 * port interrupts. For further information, check gpio_irq_disable().
phungductung 0:e87aa4c49e95 118 */
phungductung 0:e87aa4c49e95 119 void disable_irq();
phungductung 0:e87aa4c49e95 120
phungductung 0:e87aa4c49e95 121 static void _irq_handler(uint32_t id, gpio_irq_event event);
phungductung 0:e87aa4c49e95 122
phungductung 0:e87aa4c49e95 123 protected:
phungductung 0:e87aa4c49e95 124 gpio_t gpio;
phungductung 0:e87aa4c49e95 125 gpio_irq_t gpio_irq;
phungductung 0:e87aa4c49e95 126
phungductung 0:e87aa4c49e95 127 FunctionPointer _rise;
phungductung 0:e87aa4c49e95 128 FunctionPointer _fall;
phungductung 0:e87aa4c49e95 129 };
phungductung 0:e87aa4c49e95 130
phungductung 0:e87aa4c49e95 131 } // namespace mbed
phungductung 0:e87aa4c49e95 132
phungductung 0:e87aa4c49e95 133 #endif
phungductung 0:e87aa4c49e95 134
phungductung 0:e87aa4c49e95 135 #endif