/* * wiringPi.h: * Arduino like Wiring library for the Raspberry Pi. * Copyright (c) 2012-2017 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 . *********************************************************************** */ #ifndef __WIRING_PI_H__ #define __WIRING_PI_H__ // C doesn't have true/false by default and I can never remember which // way round they are, so ... // (and yes, I know about stdbool.h but I like capitals for these and I'm old) #ifndef TRUE # define TRUE (1==1) # define FALSE (!TRUE) #endif // GCC warning suppressor #define UNU __attribute__((unused)) // Mask for the bottom 64 pins which belong to the Raspberry Pi // The others are available for the other devices #define PI_GPIO_MASK (0xFFFFFFC0) // Handy defines // wiringPi modes #define WPI_MODE_PINS 0 #define WPI_MODE_GPIO 1 #define WPI_MODE_GPIO_SYS 2 #define WPI_MODE_PHYS 3 #define WPI_MODE_PIFACE 4 #define WPI_MODE_UNINITIALISED -1 // Pin modes #define INPUT 0 #define OUTPUT 1 #define PWM_OUTPUT 2 #define GPIO_CLOCK 3 #define SOFT_PWM_OUTPUT 4 #define SOFT_TONE_OUTPUT 5 #define PWM_TONE_OUTPUT 6 #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 // Pi model types and version numbers // Intended for the GPIO program Use at your own risk. #define PI_MODEL_A 0 #define PI_MODEL_B 1 #define PI_MODEL_AP 2 #define PI_MODEL_BP 3 #define PI_MODEL_2 4 #define PI_ALPHA 5 #define PI_MODEL_CM 6 #define PI_MODEL_07 7 #define PI_MODEL_3 8 #define PI_MODEL_ZERO 9 #define PI_MODEL_CM3 10 #define PI_MODEL_ZERO_W 12 #define PI_VERSION_1 0 #define PI_VERSION_1_1 1 #define PI_VERSION_1_2 2 #define PI_VERSION_2 3 #define PI_MAKER_SONY 0 #define PI_MAKER_EGOMAN 1 #define PI_MAKER_EMBEST 2 #define PI_MAKER_UNKNOWN 3 extern const char *piModelNames [16] ; extern const char *piRevisionNames [16] ; extern const char *piMakerNames [16] ; extern const int piMemorySize [ 8] ; // Intended for the GPIO program Use at your own risk. // Threads #define PI_THREAD(X) void *X (UNU void *dummy) // Failure modes #define WPI_FATAL (1==1) #define WPI_ALMOST (1==2) // wiringPiNodeStruct: // This describes additional device nodes in the extended wiringPi // 2.0 scheme of things. // It's a simple linked list for now, but will hopefully migrate to // a binary tree for efficiency reasons - but then again, the chances // of more than 1 or 2 devices being added are fairly slim, so who // knows.... struct wiringPiNodeStruct { int pinBase ; int pinMax ; int fd ; // Node specific unsigned int data0 ; // ditto unsigned int data1 ; // ditto unsigned int data2 ; // ditto unsigned int data3 ; // ditto void (*pinMode) (struct wiringPiNodeStruct *node, int pin, int mode) ; void (*pullUpDnControl) (struct wiringPiNodeStruct *node, int pin, int mode) ; int (*digitalRead) (struct wiringPiNodeStruct *node, int pin) ; //unsigned int (*digitalRead8) (struct wiringPiNodeStruct *node, int pin) ; void (*digitalWrite) (struct wiringPiNodeStruct *node, int pin, int value) ; // void (*digitalWrite8) (struct wiringPiNodeStruct *node, int pin, int value) ; void (*pwmWrite) (struct wiringPiNodeStruct *node, int pin, int value) ; int (*analogRead) (struct wiringPiNodeStruct *node, int pin) ; void (*analogWrite) (struct wiringPiNodeStruct *node, int pin, int value) ; struct wiringPiNodeStruct *next ; } ; extern struct wiringPiNodeStruct *wiringPiNodes ; // Function prototypes // c++ wrappers thanks to a comment by Nick Lott // (and others on the Raspberry Pi forums) #ifdef __cplusplus extern "C" { #endif // Data // Internal extern int wiringPiFailure (int fatal, const char *message, ...) ; // Core wiringPi functions extern struct wiringPiNodeStruct *wiringPiFindNode (int pin) ; extern struct wiringPiNodeStruct *wiringPiNewNode (int pinBase, int numPins) ; extern void wiringPiVersion (int *major, int *minor) ; extern int wiringPiSetup (void) ;//ok extern int wiringPiSetupSys (void) ;//ok extern int wiringPiSetupGpio (void) ;//ok extern int wiringPiSetupPhys (void) ;//ok extern void pinModeAlt (int pin, int mode) ;//ok extern void pinMode (int pin, int mode) ;//ok extern void pullUpDnControl (int pin, int pud) ;//ok extern int digitalRead (int pin) ;//ok extern void digitalWrite (int pin, int value) ;//ok extern unsigned int digitalRead8 (int pin) ;//ok extern void digitalWrite8 (int pin, int value) ;//ok extern void pwmWrite (int pin, int value) ;//ok extern int analogRead (int pin) ;//ok extern void analogWrite (int pin, int value) ;//ok // PiFace specifics // (Deprecated) extern int wiringPiSetupPiFace (void) ; extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only // On-Board Raspberry Pi hardware specific stuff extern int piGpioLayout (void) ;//ok extern int piBoardRev (void) ; // Deprecated//ok extern void piBoardId (int *model, int *rev, int *mem, int *maker, int *overVolted) ;//ok extern int wpiPinToGpio (int wpiPin) ;//ok extern int physPinToGpio (int physPin) ;//ok extern void setPadDrive (int group, int value) ;//ok extern int getAlt (int pin) ;//ok extern void pwmToneWrite (int pin, int freq) ;//ok extern void pwmSetMode (int mode) ;//ok extern void pwmSetRange (unsigned int range) ;//ok extern void pwmSetClock (int divisor) ;//ok extern void gpioClockSet (int pin, int freq) ;//ok extern unsigned int digitalReadByte (void) ;//ok extern unsigned int digitalReadByte2 (void) ;//ok extern void digitalWriteByte (int value) ;//ok extern void digitalWriteByte2 (int value) ;//ok // Interrupts // (Also Pi hardware specific) extern int waitForInterrupt (int pin, int mS) ; extern int wiringPiISR (int pin, int mode, void (*function)(void)) ; extern int wiringPiISRCancel (int pin) ; // Threads extern int piThreadCreate (void *(*fn)(void *)) ; extern void piLock (int key) ; extern void piUnlock (int key) ; // Schedulling priority extern int piHiPri (const int pri) ; // Extras from arduino land extern void delay (unsigned int howLong) ; //ok extern void delayMicroseconds (unsigned int howLong) ;//ok extern unsigned int millis (void) ;//ok extern unsigned int micros (void) ;//ok #ifdef __cplusplus } #endif #endif