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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

api/InterruptIn.h@635:a11c0372f0ba, 2015-09-30 (annotated)

Committer:
mbed_official
Date:
Wed Sep 30 17:00:09 2015 +0100
Revision:
635:a11c0372f0ba
Parent:
69:49e45cb70de1 
Synchronized with git revision d29c98dae61be0946ddf3a3c641c7726056f9452



Full URL: https://github.com/mbedmicro/mbed/commit/d29c98dae61be0946ddf3a3c641c7726056f9452/



Added support for SAMW25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #ifndef MBED_INTERRUPTIN_H
bogdanm 13:0645d8841f51 17 #define MBED_INTERRUPTIN_H
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 #include "platform.h"
bogdanm 13:0645d8841f51 20
bogdanm 13:0645d8841f51 21 #if DEVICE_INTERRUPTIN
bogdanm 13:0645d8841f51 22
bogdanm 13:0645d8841f51 23 #include "gpio_api.h"
bogdanm 13:0645d8841f51 24 #include "gpio_irq_api.h"
bogdanm 13:0645d8841f51 25 #include "FunctionPointer.h"
bogdanm 13:0645d8841f51 26
bogdanm 13:0645d8841f51 27 namespace mbed {
bogdanm 13:0645d8841f51 28
bogdanm 13:0645d8841f51 29 /** A digital interrupt input, used to call a function on a rising or falling edge
bogdanm 13:0645d8841f51 30 *
bogdanm 13:0645d8841f51 31 * Example:
bogdanm 13:0645d8841f51 32 * @code
bogdanm 13:0645d8841f51 33 * // Flash an LED while waiting for events
bogdanm 13:0645d8841f51 34 *
bogdanm 13:0645d8841f51 35 * #include "mbed.h"
bogdanm 13:0645d8841f51 36 *
bogdanm 13:0645d8841f51 37 * InterruptIn event(p16);
bogdanm 13:0645d8841f51 38 * DigitalOut led(LED1);
bogdanm 13:0645d8841f51 39 *
bogdanm 13:0645d8841f51 40 * void trigger() {
bogdanm 13:0645d8841f51 41 * printf("triggered!\n");
bogdanm 13:0645d8841f51 42 * }
bogdanm 13:0645d8841f51 43 *
bogdanm 13:0645d8841f51 44 * int main() {
bogdanm 13:0645d8841f51 45 * event.rise(&trigger);
bogdanm 13:0645d8841f51 46 * while(1) {
bogdanm 13:0645d8841f51 47 * led = !led;
bogdanm 13:0645d8841f51 48 * wait(0.25);
bogdanm 13:0645d8841f51 49 * }
bogdanm 13:0645d8841f51 50 * }
bogdanm 13:0645d8841f51 51 * @endcode
bogdanm 13:0645d8841f51 52 */
bogdanm 13:0645d8841f51 53 class InterruptIn {
bogdanm 13:0645d8841f51 54
bogdanm 13:0645d8841f51 55 public:
bogdanm 13:0645d8841f51 56
bogdanm 13:0645d8841f51 57 /** Create an InterruptIn connected to the specified pin
bogdanm 13:0645d8841f51 58 *
bogdanm 13:0645d8841f51 59 * @param pin InterruptIn pin to connect to
bogdanm 13:0645d8841f51 60 * @param name (optional) A string to identify the object
bogdanm 13:0645d8841f51 61 */
bogdanm 13:0645d8841f51 62 InterruptIn(PinName pin);
bogdanm 13:0645d8841f51 63 virtual ~InterruptIn();
bogdanm 13:0645d8841f51 64
bogdanm 13:0645d8841f51 65 int read();
bogdanm 13:0645d8841f51 66 #ifdef MBED_OPERATORS
bogdanm 13:0645d8841f51 67 operator int();
bogdanm 13:0645d8841f51 68
bogdanm 13:0645d8841f51 69 #endif
bogdanm 13:0645d8841f51 70
bogdanm 13:0645d8841f51 71 /** Attach a function to call when a rising edge occurs on the input
bogdanm 13:0645d8841f51 72 *
bogdanm 13:0645d8841f51 73 * @param fptr A pointer to a void function, or 0 to set as none
bogdanm 13:0645d8841f51 74 */
mbed_official 36:ab3ee77451e7 75 void rise(void (*fptr)(void));
bogdanm 13:0645d8841f51 76
bogdanm 13:0645d8841f51 77 /** Attach a member function to call when a rising edge occurs on the input
bogdanm 13:0645d8841f51 78 *
bogdanm 13:0645d8841f51 79 * @param tptr pointer to the object to call the member function on
bogdanm 13:0645d8841f51 80 * @param mptr pointer to the member function to be called
bogdanm 13:0645d8841f51 81 */
bogdanm 13:0645d8841f51 82 template<typename T>
mbed_official 36:ab3ee77451e7 83 void rise(T* tptr, void (T::*mptr)(void)) {
mbed_official 36:ab3ee77451e7 84 _rise.attach(tptr, mptr);
mbed_official 36:ab3ee77451e7 85 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
bogdanm 13:0645d8841f51 86 }
bogdanm 13:0645d8841f51 87
bogdanm 13:0645d8841f51 88 /** Attach a function to call when a falling edge occurs on the input
bogdanm 13:0645d8841f51 89 *
bogdanm 13:0645d8841f51 90 * @param fptr A pointer to a void function, or 0 to set as none
bogdanm 13:0645d8841f51 91 */
mbed_official 36:ab3ee77451e7 92 void fall(void (*fptr)(void));
bogdanm 13:0645d8841f51 93
bogdanm 13:0645d8841f51 94 /** Attach a member function to call when a falling edge occurs on the input
bogdanm 13:0645d8841f51 95 *
bogdanm 13:0645d8841f51 96 * @param tptr pointer to the object to call the member function on
bogdanm 13:0645d8841f51 97 * @param mptr pointer to the member function to be called
bogdanm 13:0645d8841f51 98 */
bogdanm 13:0645d8841f51 99 template<typename T>
mbed_official 36:ab3ee77451e7 100 void fall(T* tptr, void (T::*mptr)(void)) {
mbed_official 36:ab3ee77451e7 101 _fall.attach(tptr, mptr);
mbed_official 36:ab3ee77451e7 102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
bogdanm 13:0645d8841f51 103 }
bogdanm 13:0645d8841f51 104
bogdanm 13:0645d8841f51 105 /** Set the input pin mode
bogdanm 13:0645d8841f51 106 *
bogdanm 13:0645d8841f51 107 * @param mode PullUp, PullDown, PullNone
bogdanm 13:0645d8841f51 108 */
bogdanm 13:0645d8841f51 109 void mode(PinMode pull);
bogdanm 13:0645d8841f51 110
mbed_official 69:49e45cb70de1 111 /** Enable IRQ. This method depends on hw implementation, might enable one
mbed_official 69:49e45cb70de1 112 * port interrupts. For further information, check gpio_irq_enable().
mbed_official 35:371630885ad6 113 */
mbed_official 35:371630885ad6 114 void enable_irq();
mbed_official 35:371630885ad6 115
mbed_official 69:49e45cb70de1 116 /** Disable IRQ. This method depends on hw implementation, might disable one
mbed_official 69:49e45cb70de1 117 * port interrupts. For further information, check gpio_irq_disable().
mbed_official 35:371630885ad6 118 */
mbed_official 35:371630885ad6 119 void disable_irq();
mbed_official 35:371630885ad6 120
bogdanm 13:0645d8841f51 121 static void _irq_handler(uint32_t id, gpio_irq_event event);
bogdanm 13:0645d8841f51 122
bogdanm 13:0645d8841f51 123 protected:
bogdanm 13:0645d8841f51 124 gpio_t gpio;
bogdanm 13:0645d8841f51 125 gpio_irq_t gpio_irq;
bogdanm 13:0645d8841f51 126
mbed_official 36:ab3ee77451e7 127 FunctionPointer _rise;
mbed_official 36:ab3ee77451e7 128 FunctionPointer _fall;
bogdanm 13:0645d8841f51 129 };
bogdanm 13:0645d8841f51 130
bogdanm 13:0645d8841f51 131 } // namespace mbed
bogdanm 13:0645d8841f51 132
bogdanm 13:0645d8841f51 133 #endif
bogdanm 13:0645d8841f51 134
bogdanm 13:0645d8841f51 135 #endif