JetsonXavierGPIO/jetsonGPIO.h at master · gaosiy/JetsonXavierGPIO · GitHub

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/*
 * jetsonGPIO.h
 * modified by Gaosiy 2019.07.20
 * Copyright (c) 2019 Gaosiy
 * Originally from:
 * MengHuanLee
 * https://github.com/MengHuanLee/jetsonTX2GPIO
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the RidgeRun.
 * 4. Neither the name of the RidgeRun nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY RIDGERUN ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL RIDGERUN BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef JETSONGPIO_H_
#define JETSONGPIO_H_

 /****************************************************************
 * Constants
 ****************************************************************/

#define SYSFS_GPIO_DIR "/sys/class/gpio"
#define POLL_TIMEOUT (3 * 1000) /* 3 seconds */
#define MAX_BUF 64

typedef unsigned int jetsonGPIO ;
typedef unsigned int pinDirection ;
typedef unsigned int pinValue ;

enum pinDirections {
	inputPin  = 0,
	outputPin = 1
} ;

enum pinValues {
    low = 0,
    high = 1,
    off = 0,  // synonym for things like lights
    on = 1
}  ;

enum jetsonXavierGPIONumber {
       gpio422 = 422,      // Pin  7
       gpio428 = 428,      // Pin 11
       gpio351 = 351,      // Pin 12
       gpio424 = 424,      // Pin 13
       gpio393 = 393,      // Pin 15
       gpio256 = 256,      // Pin 16
       gpio344 = 344,      // Pin 21
       gpio417 = 417,      // Pin 22
       gpio251 = 251,      // Pin 29
       gpio250 = 250,      // Pin 31
       gpio257 = 257,      // Pin 32
       gpio248 = 248,      // Pin 33
       gpio354 = 354,      // Pin 35
       gpio429 = 429,      // Pin 36
       gpio249 = 249,      // Pin 37
       gpio353 = 353,      // Pin 38
       gpio352 = 352,      // Pin 40

} ;
int gpioExport ( jetsonGPIO gpio ) ;
int gpioUnexport ( jetsonGPIO gpio ) ;
int gpioSetDirection ( jetsonGPIO, pinDirection out_flag ) ;
int gpioSetValue ( jetsonGPIO gpio, pinValue value ) ;
int gpioGetValue ( jetsonGPIO gpio, unsigned int *value ) ;
int gpioSetEdge ( jetsonGPIO gpio, char *edge ) ;
int gpioOpen ( jetsonGPIO gpio ) ;
int gpioClose ( int fileDescriptor ) ;
int gpioActiveLow ( jetsonGPIO gpio, unsigned int value ) ;


#endif // JETSONGPIO_H_