/* * wiringPi: * Arduino compatable (ish) Wiring library for the Raspberry Pi * Copyright (c) 2012 Gordon Henderson *********************************************************************** * This file is part of wiringPi: * https://projects.drogon.net/raspberry-pi/wiringpi/ * * wiringPi is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * wiringPi is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with wiringPi. If not, see . *********************************************************************** */ // Handy defines // Deprecated #define NUM_PINS 17 #define WPI_MODE_PINS 0 #define WPI_MODE_GPIO 1 #define WPI_MODE_GPIO_SYS 2 #define WPI_MODE_PIFACE 3 #define WPI_MODE_UNINITIALISED -1 // Pin modes #define INPUT 0 #define OUTPUT 1 #define PWM_OUTPUT 2 #define GPIO_CLOCK 3 #define LOW 0 #define HIGH 1 // Pull up/down/none #define PUD_OFF 0 #define PUD_DOWN 1 #define PUD_UP 2 // PWM #define PWM_MODE_MS 0 #define PWM_MODE_BAL 1 // Interrupt levels #define INT_EDGE_SETUP 0 #define INT_EDGE_FALLING 1 #define INT_EDGE_RISING 2 #define INT_EDGE_BOTH 3 // Threads #define PI_THREAD(X) void *X (void *dummy) // Function prototypes // c++ wrappers thanks to a comment by Nick Lott // (and others on the Raspberry Pi forums) #ifdef __cplusplus extern "C" { #endif // Basic wiringPi functions extern int wiringPiSetup (void) ; extern int wiringPiSetupSys (void) ; extern int wiringPiSetupGpio (void) ; extern int wiringPiSetupPiFace (void) ; extern int piBoardRev (void) ; extern int wpiPinToGpio (int wpiPin) ; extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only extern void (*pinMode) (int pin, int mode) ; extern int (*getAlt) (int pin) ; extern void (*pullUpDnControl) (int pin, int pud) ; extern void (*digitalWrite) (int pin, int value) ; extern void (*digitalWriteByte) (int value) ; extern void (*gpioClockSet) (int pin, int freq) ; extern void (*pwmWrite) (int pin, int value) ; extern void (*setPadDrive) (int group, int value) ; extern int (*digitalRead) (int pin) ; extern void (*pwmSetMode) (int mode) ; extern void (*pwmSetRange) (unsigned int range) ; extern void (*pwmSetClock) (int divisor) ; // Interrupts extern int (*waitForInterrupt) (int pin, int mS) ; extern int wiringPiISR (int pin, int mode, void (*function)(void)) ; // Threads extern int piThreadCreate (void *(*fn)(void *)) ; extern void piLock (int key) ; extern void piUnlock (int key) ; // Schedulling priority extern int piHiPri (int pri) ; // Extras from arduino land extern void delay (unsigned int howLong) ; extern void delayMicroseconds (unsigned int howLong) ; extern unsigned int millis (void) ; extern unsigned int micros (void) ; #ifdef __cplusplus } #endif