84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
|
/*****************************************************************************
|
||
|
|
* | File : sysfs_gpio.h
|
||
|
|
* | Author : Waveshare team
|
||
|
|
* | Function : Drive SC16IS752 GPIO
|
||
|
|
* | Info : Read and write /sys/class/gpio
|
||
|
|
*----------------
|
||
|
|
* | This version: V1.0
|
||
|
|
* | Date : 2019-06-04
|
||
|
|
* | Info : Basic version
|
||
|
|
*
|
||
|
|
#
|
||
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
# of this software and associated documnetation files (the "Software"), to deal
|
||
|
|
# in the Software without restriction, including without limitation the rights
|
||
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
# copies of the Software, and to permit persons to whom the Software is
|
||
|
|
# furished to do so, subject to the following conditions:
|
||
|
|
#
|
||
|
|
# The above copyright notice and this permission notice shall be included in
|
||
|
|
# all copies or substantial portions of the Software.
|
||
|
|
#
|
||
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
# THE SOFTWARE.
|
||
|
|
#
|
||
|
|
******************************************************************************/
|
||
|
|
#ifndef __SYSFS_GPIO_
|
||
|
|
#define __SYSFS_GPIO_
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#define IN 0
|
||
|
|
#define OUT 1
|
||
|
|
|
||
|
|
#define LOW 0
|
||
|
|
#define HIGH 1
|
||
|
|
|
||
|
|
#define NUM_MAXBUF 4
|
||
|
|
#define DIR_MAXSIZ 60
|
||
|
|
|
||
|
|
#define SYSFS_GPIO_DEBUG 1
|
||
|
|
#if SYSFS_GPIO_DEBUG
|
||
|
|
#define SYSFS_GPIO_Debug(__info,...) printf("Debug: " __info,##__VA_ARGS__)
|
||
|
|
#else
|
||
|
|
#define SYSFS_GPIO_Debug(__info,...)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// BCM GPIO for Jetson nano
|
||
|
|
#define GPIO4 216 // 7, 4
|
||
|
|
#define GPIO17 50 // 11, 17
|
||
|
|
#define GPIO18 79 // 12, 18
|
||
|
|
#define GPIO27 14 // 13, 27
|
||
|
|
#define GPIO22 194 // 15, 22
|
||
|
|
#define GPIO23 232 // 16, 23
|
||
|
|
#define GPIO24 15 // 18, 24
|
||
|
|
#define SPI0_MOSI 16 // 19, 10
|
||
|
|
#define SPI0_MISO 17 // 21, 9
|
||
|
|
#define GPIO25 13 // 22, 25
|
||
|
|
#define SPI0_SCK 18 // 23, 11
|
||
|
|
#define SPI0_CS0 19 // 24, 8
|
||
|
|
#define SPI0_CS1 20 // 26, 7
|
||
|
|
#define GPIO5 149 // 29, 5
|
||
|
|
#define GPIO6 200 // 31, 6
|
||
|
|
#define GPIO12 168 // 32, 12
|
||
|
|
#define GPIO13 38 // 33, 13
|
||
|
|
#define GPIO19 76 // 35, 19
|
||
|
|
#define GPIO16 51 // 36, 16
|
||
|
|
#define GPIO26 12 // 37, 26
|
||
|
|
#define GPIO20 77 // 38, 20
|
||
|
|
#define GPIO21 78 // 40, 21
|
||
|
|
// 22PIN + 2PIN UART0 + 2PIN I2C0 + 2PIN I2C
|
||
|
|
// + 2PIN 3V3 + 2PIN 5V + 8PIN GND = 40PIN
|
||
|
|
|
||
|
|
int SYSFS_GPIO_Export(int Pin);
|
||
|
|
int SYSFS_GPIO_Unexport(int Pin);
|
||
|
|
int SYSFS_GPIO_Direction(int Pin, int Dir);
|
||
|
|
int SYSFS_GPIO_Read(int Pin);
|
||
|
|
int SYSFS_GPIO_Write(int Pin, int value);
|
||
|
|
|
||
|
|
#endif
|