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InterruptIn.h@27:7110ebee3484, 2011-11-29 (annotated)

Committer:
emilmont
Date:
Tue Nov 29 14:59:27 2011 +0000
Revision:
27:7110ebee3484
Parent:
11:1c1ebd0324fa
Child:
43:e2ed12d17f06
New Libraries 11.11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rolf.meyer@arm.com 11:1c1ebd0324fa 1 /* mbed Microcontroller Library - InterruptIn
emilmont 27:7110ebee3484 2 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
rolf.meyer@arm.com 11:1c1ebd0324fa 3 */
rolf.meyer@arm.com 11:1c1ebd0324fa 4
rolf.meyer@arm.com 11:1c1ebd0324fa 5 #ifndef MBED_INTERRUPTIN_H
rolf.meyer@arm.com 11:1c1ebd0324fa 6 #define MBED_INTERRUPTIN_H
rolf.meyer@arm.com 11:1c1ebd0324fa 7
emilmont 27:7110ebee3484 8 #include "device.h"
emilmont 27:7110ebee3484 9
emilmont 27:7110ebee3484 10 #if DEVICE_INTERRUPTIN
emilmont 27:7110ebee3484 11
rolf.meyer@arm.com 11:1c1ebd0324fa 12 #include "platform.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 13 #include "PinNames.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 14 #include "PeripheralNames.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 15 #include "Base.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 16 #include "FunctionPointer.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 17
emilmont 27:7110ebee3484 18 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
emilmont 27:7110ebee3484 19 #define CHANNEL_NUM 48
emilmont 27:7110ebee3484 20 #elif defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 21 #define CHANNEL_NUM 8
emilmont 27:7110ebee3484 22 #endif
emilmont 27:7110ebee3484 23
rolf.meyer@arm.com 11:1c1ebd0324fa 24 namespace mbed {
rolf.meyer@arm.com 11:1c1ebd0324fa 25
rolf.meyer@arm.com 11:1c1ebd0324fa 26 /* Class: InterruptIn
rolf.meyer@arm.com 11:1c1ebd0324fa 27 * A digital interrupt input, used to call a function on a rising or falling edge
rolf.meyer@arm.com 11:1c1ebd0324fa 28 *
rolf.meyer@arm.com 11:1c1ebd0324fa 29 * Example:
rolf.meyer@arm.com 11:1c1ebd0324fa 30 * > // Flash an LED while waiting for events
rolf.meyer@arm.com 11:1c1ebd0324fa 31 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 32 * > #include "mbed.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 33 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 34 * > InterruptIn event(p16);
rolf.meyer@arm.com 11:1c1ebd0324fa 35 * > DigitalOut led(LED1);
rolf.meyer@arm.com 11:1c1ebd0324fa 36 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 37 * > void trigger() {
rolf.meyer@arm.com 11:1c1ebd0324fa 38 * > printf("triggered!\n");
rolf.meyer@arm.com 11:1c1ebd0324fa 39 * > }
rolf.meyer@arm.com 11:1c1ebd0324fa 40 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 41 * > int main() {
rolf.meyer@arm.com 11:1c1ebd0324fa 42 * > event.rise(&trigger);
rolf.meyer@arm.com 11:1c1ebd0324fa 43 * > while(1) {
rolf.meyer@arm.com 11:1c1ebd0324fa 44 * > led = !led;
rolf.meyer@arm.com 11:1c1ebd0324fa 45 * > wait(0.25);
rolf.meyer@arm.com 11:1c1ebd0324fa 46 * > }
rolf.meyer@arm.com 11:1c1ebd0324fa 47 * > }
rolf.meyer@arm.com 11:1c1ebd0324fa 48 */
rolf.meyer@arm.com 11:1c1ebd0324fa 49 class InterruptIn : public Base {
rolf.meyer@arm.com 11:1c1ebd0324fa 50
rolf.meyer@arm.com 11:1c1ebd0324fa 51 public:
rolf.meyer@arm.com 11:1c1ebd0324fa 52
rolf.meyer@arm.com 11:1c1ebd0324fa 53 /* Constructor: InterruptIn
rolf.meyer@arm.com 11:1c1ebd0324fa 54 * Create an InterruptIn connected to the specified pin
rolf.meyer@arm.com 11:1c1ebd0324fa 55 *
rolf.meyer@arm.com 11:1c1ebd0324fa 56 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 57 * pin - InterruptIn pin to connect to
rolf.meyer@arm.com 11:1c1ebd0324fa 58 * name - (optional) A string to identify the object
rolf.meyer@arm.com 11:1c1ebd0324fa 59 */
rolf.meyer@arm.com 11:1c1ebd0324fa 60 InterruptIn(PinName pin, const char *name = NULL);
emilmont 27:7110ebee3484 61 #if defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 62 virtual ~InterruptIn();
emilmont 27:7110ebee3484 63 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 64
rolf.meyer@arm.com 11:1c1ebd0324fa 65 int read();
rolf.meyer@arm.com 11:1c1ebd0324fa 66 #ifdef MBED_OPERATORS
rolf.meyer@arm.com 11:1c1ebd0324fa 67 operator int();
rolf.meyer@arm.com 11:1c1ebd0324fa 68
rolf.meyer@arm.com 11:1c1ebd0324fa 69 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 70
rolf.meyer@arm.com 11:1c1ebd0324fa 71 /* Function: rise
rolf.meyer@arm.com 11:1c1ebd0324fa 72 * Attach a function to call when a rising edge occurs on the input
rolf.meyer@arm.com 11:1c1ebd0324fa 73 *
rolf.meyer@arm.com 11:1c1ebd0324fa 74 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 75 * fptr - A pointer to a void function, or 0 to set as none
rolf.meyer@arm.com 11:1c1ebd0324fa 76 */
rolf.meyer@arm.com 11:1c1ebd0324fa 77 void rise(void (*fptr)(void));
rolf.meyer@arm.com 11:1c1ebd0324fa 78
rolf.meyer@arm.com 11:1c1ebd0324fa 79 /* Function: rise
rolf.meyer@arm.com 11:1c1ebd0324fa 80 * Attach a member function to call when a rising edge occurs on the input
rolf.meyer@arm.com 11:1c1ebd0324fa 81 *
rolf.meyer@arm.com 11:1c1ebd0324fa 82 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 83 * tptr - pointer to the object to call the member function on
rolf.meyer@arm.com 11:1c1ebd0324fa 84 * mptr - pointer to the member function to be called
rolf.meyer@arm.com 11:1c1ebd0324fa 85 */
rolf.meyer@arm.com 11:1c1ebd0324fa 86 template<typename T>
rolf.meyer@arm.com 11:1c1ebd0324fa 87 void rise(T* tptr, void (T::*mptr)(void)) {
rolf.meyer@arm.com 11:1c1ebd0324fa 88 _rise.attach(tptr, mptr);
rolf.meyer@arm.com 11:1c1ebd0324fa 89 setup_interrupt(1, 1);
rolf.meyer@arm.com 11:1c1ebd0324fa 90 }
rolf.meyer@arm.com 11:1c1ebd0324fa 91
rolf.meyer@arm.com 11:1c1ebd0324fa 92 /* Function: fall
rolf.meyer@arm.com 11:1c1ebd0324fa 93 * Attach a function to call when a falling edge occurs on the input
rolf.meyer@arm.com 11:1c1ebd0324fa 94 *
rolf.meyer@arm.com 11:1c1ebd0324fa 95 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 96 * fptr - A pointer to a void function, or 0 to set as none
rolf.meyer@arm.com 11:1c1ebd0324fa 97 */
rolf.meyer@arm.com 11:1c1ebd0324fa 98 void fall(void (*fptr)(void));
rolf.meyer@arm.com 11:1c1ebd0324fa 99
rolf.meyer@arm.com 11:1c1ebd0324fa 100 /* Function: fall
rolf.meyer@arm.com 11:1c1ebd0324fa 101 * Attach a member function to call when a falling edge occurs on the input
rolf.meyer@arm.com 11:1c1ebd0324fa 102 *
rolf.meyer@arm.com 11:1c1ebd0324fa 103 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 104 * tptr - pointer to the object to call the member function on
rolf.meyer@arm.com 11:1c1ebd0324fa 105 * mptr - pointer to the member function to be called
rolf.meyer@arm.com 11:1c1ebd0324fa 106 */
rolf.meyer@arm.com 11:1c1ebd0324fa 107 template<typename T>
rolf.meyer@arm.com 11:1c1ebd0324fa 108 void fall(T* tptr, void (T::*mptr)(void)) {
rolf.meyer@arm.com 11:1c1ebd0324fa 109 _fall.attach(tptr, mptr);
rolf.meyer@arm.com 11:1c1ebd0324fa 110 setup_interrupt(0, 1);
rolf.meyer@arm.com 11:1c1ebd0324fa 111 }
rolf.meyer@arm.com 11:1c1ebd0324fa 112
rolf.meyer@arm.com 11:1c1ebd0324fa 113 /* Function: mode
rolf.meyer@arm.com 11:1c1ebd0324fa 114 * Set the input pin mode
rolf.meyer@arm.com 11:1c1ebd0324fa 115 *
rolf.meyer@arm.com 11:1c1ebd0324fa 116 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 117 * mode - PullUp, PullDown, PullNone
rolf.meyer@arm.com 11:1c1ebd0324fa 118 */
rolf.meyer@arm.com 11:1c1ebd0324fa 119 void mode(PinMode pull);
rolf.meyer@arm.com 11:1c1ebd0324fa 120
emilmont 27:7110ebee3484 121 static InterruptIn *_irq_objects[CHANNEL_NUM];
emilmont 27:7110ebee3484 122
emilmont 27:7110ebee3484 123 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
emilmont 27:7110ebee3484 124 static void _irq();
emilmont 27:7110ebee3484 125 #elif defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 126 static void handle_interrupt_in(unsigned int channel);
emilmont 27:7110ebee3484 127 static void _irq0(); static void _irq1();
emilmont 27:7110ebee3484 128 static void _irq2(); static void _irq3();
emilmont 27:7110ebee3484 129 static void _irq4(); static void _irq5();
emilmont 27:7110ebee3484 130 static void _irq6(); static void _irq7();
emilmont 27:7110ebee3484 131 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 132
rolf.meyer@arm.com 11:1c1ebd0324fa 133 protected:
rolf.meyer@arm.com 11:1c1ebd0324fa 134 PinName _pin;
emilmont 27:7110ebee3484 135 #if defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 136 Channel _channel;
emilmont 27:7110ebee3484 137 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 138 FunctionPointer _rise;
rolf.meyer@arm.com 11:1c1ebd0324fa 139 FunctionPointer _fall;
rolf.meyer@arm.com 11:1c1ebd0324fa 140
rolf.meyer@arm.com 11:1c1ebd0324fa 141 void setup_interrupt(int rising, int enable);
rolf.meyer@arm.com 11:1c1ebd0324fa 142
rolf.meyer@arm.com 11:1c1ebd0324fa 143 };
rolf.meyer@arm.com 11:1c1ebd0324fa 144
rolf.meyer@arm.com 11:1c1ebd0324fa 145 } // namespace mbed
rolf.meyer@arm.com 11:1c1ebd0324fa 146
rolf.meyer@arm.com 11:1c1ebd0324fa 147 #endif
emilmont 27:7110ebee3484 148
emilmont 27:7110ebee3484 149 #endif