/*
* 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 <http://www.gnu.org/licenses/>.
***********************************************************************
*/
// 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