Yihui Xiong / mbed-src-nrf51822

customized mbed library sources for nrf51822

Dependents:   Grove_Node Potentiometer BLE_Beacon I2C_Scanner

api/InterruptIn.h@0:700cadd8b708, 2014-11-04 (annotated)

Committer:
yihui
Date:
Tue Nov 04 07:38:53 2014 +0000
Revision:
0:700cadd8b708
customized mbed-src library for nrf51822

Who changed what in which revision?

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yihui 0:700cadd8b708 1 /* mbed Microcontroller Library
yihui 0:700cadd8b708 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:700cadd8b708 3 *
yihui 0:700cadd8b708 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:700cadd8b708 5 * you may not use this file except in compliance with the License.
yihui 0:700cadd8b708 6 * You may obtain a copy of the License at
yihui 0:700cadd8b708 7 *
yihui 0:700cadd8b708 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:700cadd8b708 9 *
yihui 0:700cadd8b708 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:700cadd8b708 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:700cadd8b708 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:700cadd8b708 13 * See the License for the specific language governing permissions and
yihui 0:700cadd8b708 14 * limitations under the License.
yihui 0:700cadd8b708 15 */
yihui 0:700cadd8b708 16 #ifndef MBED_INTERRUPTIN_H
yihui 0:700cadd8b708 17 #define MBED_INTERRUPTIN_H
yihui 0:700cadd8b708 18
yihui 0:700cadd8b708 19 #include "platform.h"
yihui 0:700cadd8b708 20
yihui 0:700cadd8b708 21 #if DEVICE_INTERRUPTIN
yihui 0:700cadd8b708 22
yihui 0:700cadd8b708 23 #include "gpio_api.h"
yihui 0:700cadd8b708 24 #include "gpio_irq_api.h"
yihui 0:700cadd8b708 25 #include "FunctionPointer.h"
yihui 0:700cadd8b708 26
yihui 0:700cadd8b708 27 namespace mbed {
yihui 0:700cadd8b708 28
yihui 0:700cadd8b708 29 /** A digital interrupt input, used to call a function on a rising or falling edge
yihui 0:700cadd8b708 30 *
yihui 0:700cadd8b708 31 * Example:
yihui 0:700cadd8b708 32 * @code
yihui 0:700cadd8b708 33 * // Flash an LED while waiting for events
yihui 0:700cadd8b708 34 *
yihui 0:700cadd8b708 35 * #include "mbed.h"
yihui 0:700cadd8b708 36 *
yihui 0:700cadd8b708 37 * InterruptIn event(p16);
yihui 0:700cadd8b708 38 * DigitalOut led(LED1);
yihui 0:700cadd8b708 39 *
yihui 0:700cadd8b708 40 * void trigger() {
yihui 0:700cadd8b708 41 * printf("triggered!\n");
yihui 0:700cadd8b708 42 * }
yihui 0:700cadd8b708 43 *
yihui 0:700cadd8b708 44 * int main() {
yihui 0:700cadd8b708 45 * event.rise(&trigger);
yihui 0:700cadd8b708 46 * while(1) {
yihui 0:700cadd8b708 47 * led = !led;
yihui 0:700cadd8b708 48 * wait(0.25);
yihui 0:700cadd8b708 49 * }
yihui 0:700cadd8b708 50 * }
yihui 0:700cadd8b708 51 * @endcode
yihui 0:700cadd8b708 52 */
yihui 0:700cadd8b708 53 class InterruptIn {
yihui 0:700cadd8b708 54
yihui 0:700cadd8b708 55 public:
yihui 0:700cadd8b708 56
yihui 0:700cadd8b708 57 /** Create an InterruptIn connected to the specified pin
yihui 0:700cadd8b708 58 *
yihui 0:700cadd8b708 59 * @param pin InterruptIn pin to connect to
yihui 0:700cadd8b708 60 * @param name (optional) A string to identify the object
yihui 0:700cadd8b708 61 */
yihui 0:700cadd8b708 62 InterruptIn(PinName pin);
yihui 0:700cadd8b708 63 virtual ~InterruptIn();
yihui 0:700cadd8b708 64
yihui 0:700cadd8b708 65 int read();
yihui 0:700cadd8b708 66 #ifdef MBED_OPERATORS
yihui 0:700cadd8b708 67 operator int();
yihui 0:700cadd8b708 68
yihui 0:700cadd8b708 69 #endif
yihui 0:700cadd8b708 70
yihui 0:700cadd8b708 71 /** Attach a function to call when a rising edge occurs on the input
yihui 0:700cadd8b708 72 *
yihui 0:700cadd8b708 73 * @param fptr A pointer to a void function, or 0 to set as none
yihui 0:700cadd8b708 74 */
yihui 0:700cadd8b708 75 void rise(void (*fptr)(void));
yihui 0:700cadd8b708 76
yihui 0:700cadd8b708 77 /** Attach a member function to call when a rising edge occurs on the input
yihui 0:700cadd8b708 78 *
yihui 0:700cadd8b708 79 * @param tptr pointer to the object to call the member function on
yihui 0:700cadd8b708 80 * @param mptr pointer to the member function to be called
yihui 0:700cadd8b708 81 */
yihui 0:700cadd8b708 82 template<typename T>
yihui 0:700cadd8b708 83 void rise(T* tptr, void (T::*mptr)(void)) {
yihui 0:700cadd8b708 84 _rise.attach(tptr, mptr);
yihui 0:700cadd8b708 85 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
yihui 0:700cadd8b708 86 }
yihui 0:700cadd8b708 87
yihui 0:700cadd8b708 88 /** Attach a function to call when a falling edge occurs on the input
yihui 0:700cadd8b708 89 *
yihui 0:700cadd8b708 90 * @param fptr A pointer to a void function, or 0 to set as none
yihui 0:700cadd8b708 91 */
yihui 0:700cadd8b708 92 void fall(void (*fptr)(void));
yihui 0:700cadd8b708 93
yihui 0:700cadd8b708 94 /** Attach a member function to call when a falling edge occurs on the input
yihui 0:700cadd8b708 95 *
yihui 0:700cadd8b708 96 * @param tptr pointer to the object to call the member function on
yihui 0:700cadd8b708 97 * @param mptr pointer to the member function to be called
yihui 0:700cadd8b708 98 */
yihui 0:700cadd8b708 99 template<typename T>
yihui 0:700cadd8b708 100 void fall(T* tptr, void (T::*mptr)(void)) {
yihui 0:700cadd8b708 101 _fall.attach(tptr, mptr);
yihui 0:700cadd8b708 102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
yihui 0:700cadd8b708 103 }
yihui 0:700cadd8b708 104
yihui 0:700cadd8b708 105 /** Set the input pin mode
yihui 0:700cadd8b708 106 *
yihui 0:700cadd8b708 107 * @param mode PullUp, PullDown, PullNone
yihui 0:700cadd8b708 108 */
yihui 0:700cadd8b708 109 void mode(PinMode pull);
yihui 0:700cadd8b708 110
yihui 0:700cadd8b708 111 /** Enable IRQ. This method depends on hw implementation, might enable one
yihui 0:700cadd8b708 112 * port interrupts. For further information, check gpio_irq_enable().
yihui 0:700cadd8b708 113 */
yihui 0:700cadd8b708 114 void enable_irq();
yihui 0:700cadd8b708 115
yihui 0:700cadd8b708 116 /** Disable IRQ. This method depends on hw implementation, might disable one
yihui 0:700cadd8b708 117 * port interrupts. For further information, check gpio_irq_disable().
yihui 0:700cadd8b708 118 */
yihui 0:700cadd8b708 119 void disable_irq();
yihui 0:700cadd8b708 120
yihui 0:700cadd8b708 121 static void _irq_handler(uint32_t id, gpio_irq_event event);
yihui 0:700cadd8b708 122
yihui 0:700cadd8b708 123 protected:
yihui 0:700cadd8b708 124 gpio_t gpio;
yihui 0:700cadd8b708 125 gpio_irq_t gpio_irq;
yihui 0:700cadd8b708 126
yihui 0:700cadd8b708 127 FunctionPointer _rise;
yihui 0:700cadd8b708 128 FunctionPointer _fall;
yihui 0:700cadd8b708 129 };
yihui 0:700cadd8b708 130
yihui 0:700cadd8b708 131 } // namespace mbed
yihui 0:700cadd8b708 132
yihui 0:700cadd8b708 133 #endif
yihui 0:700cadd8b708 134
yihui 0:700cadd8b708 135 #endif