Emir Sokic / mbedPAI Featured

mbed.h verzija za koristenje na predmetu PAI

InterruptIn.h@0:05aad811ea07, 2015-03-10 (annotated)

Committer:
esokic
Date:
Tue Mar 10 09:51:52 2015 +0000
Revision:
0:05aad811ea07
mbed.h verzija od marta 2014, za koristenje na predmetu PAI

Who changed what in which revision?

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esokic 0:05aad811ea07 1 /* mbed Microcontroller Library
esokic 0:05aad811ea07 2 * Copyright (c) 2006-2013 ARM Limited
esokic 0:05aad811ea07 3 *
esokic 0:05aad811ea07 4 * Licensed under the Apache License, Version 2.0 (the "License");
esokic 0:05aad811ea07 5 * you may not use this file except in compliance with the License.
esokic 0:05aad811ea07 6 * You may obtain a copy of the License at
esokic 0:05aad811ea07 7 *
esokic 0:05aad811ea07 8 * http://www.apache.org/licenses/LICENSE-2.0
esokic 0:05aad811ea07 9 *
esokic 0:05aad811ea07 10 * Unless required by applicable law or agreed to in writing, software
esokic 0:05aad811ea07 11 * distributed under the License is distributed on an "AS IS" BASIS,
esokic 0:05aad811ea07 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
esokic 0:05aad811ea07 13 * See the License for the specific language governing permissions and
esokic 0:05aad811ea07 14 * limitations under the License.
esokic 0:05aad811ea07 15 */
esokic 0:05aad811ea07 16 #ifndef MBED_INTERRUPTIN_H
esokic 0:05aad811ea07 17 #define MBED_INTERRUPTIN_H
esokic 0:05aad811ea07 18
esokic 0:05aad811ea07 19 #include "platform.h"
esokic 0:05aad811ea07 20
esokic 0:05aad811ea07 21 #if DEVICE_INTERRUPTIN
esokic 0:05aad811ea07 22
esokic 0:05aad811ea07 23 #include "gpio_api.h"
esokic 0:05aad811ea07 24 #include "gpio_irq_api.h"
esokic 0:05aad811ea07 25 #include "FunctionPointer.h"
esokic 0:05aad811ea07 26
esokic 0:05aad811ea07 27 namespace mbed {
esokic 0:05aad811ea07 28
esokic 0:05aad811ea07 29 /** A digital interrupt input, used to call a function on a rising or falling edge
esokic 0:05aad811ea07 30 *
esokic 0:05aad811ea07 31 * Example:
esokic 0:05aad811ea07 32 * @code
esokic 0:05aad811ea07 33 * // Flash an LED while waiting for events
esokic 0:05aad811ea07 34 *
esokic 0:05aad811ea07 35 * #include "mbed.h"
esokic 0:05aad811ea07 36 *
esokic 0:05aad811ea07 37 * InterruptIn event(p16);
esokic 0:05aad811ea07 38 * DigitalOut led(LED1);
esokic 0:05aad811ea07 39 *
esokic 0:05aad811ea07 40 * void trigger() {
esokic 0:05aad811ea07 41 * printf("triggered!\n");
esokic 0:05aad811ea07 42 * }
esokic 0:05aad811ea07 43 *
esokic 0:05aad811ea07 44 * int main() {
esokic 0:05aad811ea07 45 * event.rise(&trigger);
esokic 0:05aad811ea07 46 * while(1) {
esokic 0:05aad811ea07 47 * led = !led;
esokic 0:05aad811ea07 48 * wait(0.25);
esokic 0:05aad811ea07 49 * }
esokic 0:05aad811ea07 50 * }
esokic 0:05aad811ea07 51 * @endcode
esokic 0:05aad811ea07 52 */
esokic 0:05aad811ea07 53 class InterruptIn {
esokic 0:05aad811ea07 54
esokic 0:05aad811ea07 55 public:
esokic 0:05aad811ea07 56
esokic 0:05aad811ea07 57 /** Create an InterruptIn connected to the specified pin
esokic 0:05aad811ea07 58 *
esokic 0:05aad811ea07 59 * @param pin InterruptIn pin to connect to
esokic 0:05aad811ea07 60 * @param name (optional) A string to identify the object
esokic 0:05aad811ea07 61 */
esokic 0:05aad811ea07 62 InterruptIn(PinName pin);
esokic 0:05aad811ea07 63 virtual ~InterruptIn();
esokic 0:05aad811ea07 64
esokic 0:05aad811ea07 65 int read();
esokic 0:05aad811ea07 66 #ifdef MBED_OPERATORS
esokic 0:05aad811ea07 67 operator int();
esokic 0:05aad811ea07 68
esokic 0:05aad811ea07 69 #endif
esokic 0:05aad811ea07 70
esokic 0:05aad811ea07 71 /** Attach a function to call when a rising edge occurs on the input
esokic 0:05aad811ea07 72 *
esokic 0:05aad811ea07 73 * @param fptr A pointer to a void function, or 0 to set as none
esokic 0:05aad811ea07 74 */
esokic 0:05aad811ea07 75 void rise(void (*fptr)(void));
esokic 0:05aad811ea07 76
esokic 0:05aad811ea07 77 /** Attach a member function to call when a rising edge occurs on the input
esokic 0:05aad811ea07 78 *
esokic 0:05aad811ea07 79 * @param tptr pointer to the object to call the member function on
esokic 0:05aad811ea07 80 * @param mptr pointer to the member function to be called
esokic 0:05aad811ea07 81 */
esokic 0:05aad811ea07 82 template<typename T>
esokic 0:05aad811ea07 83 void rise(T* tptr, void (T::*mptr)(void)) {
esokic 0:05aad811ea07 84 _rise.attach(tptr, mptr);
esokic 0:05aad811ea07 85 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
esokic 0:05aad811ea07 86 }
esokic 0:05aad811ea07 87
esokic 0:05aad811ea07 88 /** Attach a function to call when a falling edge occurs on the input
esokic 0:05aad811ea07 89 *
esokic 0:05aad811ea07 90 * @param fptr A pointer to a void function, or 0 to set as none
esokic 0:05aad811ea07 91 */
esokic 0:05aad811ea07 92 void fall(void (*fptr)(void));
esokic 0:05aad811ea07 93
esokic 0:05aad811ea07 94 /** Attach a member function to call when a falling edge occurs on the input
esokic 0:05aad811ea07 95 *
esokic 0:05aad811ea07 96 * @param tptr pointer to the object to call the member function on
esokic 0:05aad811ea07 97 * @param mptr pointer to the member function to be called
esokic 0:05aad811ea07 98 */
esokic 0:05aad811ea07 99 template<typename T>
esokic 0:05aad811ea07 100 void fall(T* tptr, void (T::*mptr)(void)) {
esokic 0:05aad811ea07 101 _fall.attach(tptr, mptr);
esokic 0:05aad811ea07 102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
esokic 0:05aad811ea07 103 }
esokic 0:05aad811ea07 104
esokic 0:05aad811ea07 105 /** Set the input pin mode
esokic 0:05aad811ea07 106 *
esokic 0:05aad811ea07 107 * @param mode PullUp, PullDown, PullNone
esokic 0:05aad811ea07 108 */
esokic 0:05aad811ea07 109 void mode(PinMode pull);
esokic 0:05aad811ea07 110
esokic 0:05aad811ea07 111 /** Enable IRQ. This method depends on hw implementation, might enable one
esokic 0:05aad811ea07 112 * port interrupts. For further information, check gpio_irq_enable().
esokic 0:05aad811ea07 113 */
esokic 0:05aad811ea07 114 void enable_irq();
esokic 0:05aad811ea07 115
esokic 0:05aad811ea07 116 /** Disable IRQ. This method depends on hw implementation, might disable one
esokic 0:05aad811ea07 117 * port interrupts. For further information, check gpio_irq_disable().
esokic 0:05aad811ea07 118 */
esokic 0:05aad811ea07 119 void disable_irq();
esokic 0:05aad811ea07 120
esokic 0:05aad811ea07 121 static void _irq_handler(uint32_t id, gpio_irq_event event);
esokic 0:05aad811ea07 122
esokic 0:05aad811ea07 123 protected:
esokic 0:05aad811ea07 124 gpio_t gpio;
esokic 0:05aad811ea07 125 gpio_irq_t gpio_irq;
esokic 0:05aad811ea07 126
esokic 0:05aad811ea07 127 FunctionPointer _rise;
esokic 0:05aad811ea07 128 FunctionPointer _fall;
esokic 0:05aad811ea07 129 };
esokic 0:05aad811ea07 130
esokic 0:05aad811ea07 131 } // namespace mbed
esokic 0:05aad811ea07 132
esokic 0:05aad811ea07 133 #endif
esokic 0:05aad811ea07 134
esokic 0:05aad811ea07 135 #endif