93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
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* wiringPi:
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* Arduino compatable (ish) Wiring library for the Raspberry Pi
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* Copyright (c) 2012 Gordon Henderson
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***********************************************************************
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* This file is part of wiringPi:
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* https://projects.drogon.net/raspberry-pi/wiringpi/
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*
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* wiringPi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* wiringPi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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// Handy defines
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#define NUM_PINS 17
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#define WPI_MODE_PINS 0
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#define WPI_MODE_GPIO 1
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#define WPI_MODE_GPIO_SYS 2
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#define WPI_MODE_PIFACE 3
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#define INPUT 0
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#define OUTPUT 1
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#define PWM_OUTPUT 2
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#define LOW 0
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#define HIGH 1
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#define PUD_OFF 0
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#define PUD_DOWN 1
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#define PUD_UP 2
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// Function prototypes
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// c++ wrappers thanks to a commend by Nick Lott
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// (and others on the Raspberry Pi forums)
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Basic wiringPi functions
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extern int wiringPiSetup (void) ;
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extern int wiringPiSetupSys (void) ;
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extern int wiringPiSetupGpio (void) ;
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extern int wiringPiSetupPiFace (void) ;
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extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only
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extern void (*pinMode) (int pin, int mode) ;
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extern void (*pullUpDnControl) (int pin, int pud) ;
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extern void (*digitalWrite) (int pin, int value) ;
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extern void (*pwmWrite) (int pin, int value) ;
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extern int (*digitalRead) (int pin) ;
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// Interrupts
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extern int (*waitForInterrupt) (int pin, int mS) ;
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// Threads
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#define PI_THREAD(X) void *X (void *dummy)
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extern int piThreadCreate (void *(*fn)(void *)) ;
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extern void piLock (int key) ;
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extern void piUnlock (int key) ;
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// Schedulling priority
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extern int piHiPri (int pri) ;
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// Extras from arduino land
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extern void delay (unsigned int howLong) ;
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extern void delayMicroseconds (unsigned int howLong) ;
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extern unsigned int millis (void) ;
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#ifdef __cplusplus
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}
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#endif
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