mirror of
https://github.com/clockworkpi/WiringPi.git
synced 2025-12-13 00:08:51 +01:00
25e4ec570b
delayMicrosecondsHard re-written - again. Added a serialRead example program, and added in the okLed to the examples too. Updated/checked some of the GPIO/PWM code. Added in some experimental servo and tone generating code and and example or 2. Tweaks to the gpio command to correctly load the I2C modules too.
107 lines
2.9 KiB
C
107 lines
2.9 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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// PWM
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#define PWM_MODE_MS 0
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#define PWM_MODE_BAL 1
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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 piBoardRev (void) ;
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extern int wpiPinToGpio (int wpiPin) ;
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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 (*digitalWriteByte) (int value) ;
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extern void (*pwmWrite) (int pin, int value) ;
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extern void (*setPadDrive) (int group, int value) ;
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extern int (*digitalRead) (int pin) ;
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extern void (*delayMicroseconds) (unsigned int howLong) ;
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extern void (*pwmSetMode) (int mode) ;
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extern void (*pwmSetRange) (unsigned int range) ;
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extern void (*pwmSetClock) (int divisor) ;
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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 unsigned int millis (void) ;
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#ifdef __cplusplus
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}
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#endif
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