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util/gpio: add Windows stubs.

This commit is contained in:
Daniel Beer 2015-03-02 09:39:08 +13:00
parent fdaad416b2
commit e6a0f0ac95
1 changed files with 62 additions and 8 deletions
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70
util/gpio.c
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@ -10,6 +10,61 @@
*
*/
#include "gpio.h"
#include "output.h"
#ifdef __Windows__
/* Added for building on Windows
*
* Daniel Beer <dlbeer@gmail.com>, 3 Mar 2015
*/
int gpio_export ( unsigned int gpio )
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
int gpio_unexport ( unsigned int gpio )
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
int gpio_set_dir ( unsigned int gpio, unsigned int out_flag )
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
int gpio_set_value ( unsigned int gpio, unsigned int value )
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
int gpio_set_value_fd (int fd, int value)
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
int gpio_get_value ( unsigned int gpio )
{
return 0;
}
int gpio_get_value_fd (int fd, unsigned int gpio)
{
return 0;
}
int gpio_open_fd (unsigned int gpio)
{
printc_err("gpio: GPIO interface not supported on Windows\n");
return -1;
}
#else
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -19,7 +74,6 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "gpio.h"
#define SYSFS_GPIO_DIR "/sys/class/gpio"
#define MAX_BUF 64
@ -39,7 +93,7 @@ int gpio_export ( unsigned int gpio )
fd = open ( SYSFS_GPIO_DIR "/export", O_WRONLY );
if ( fd < 0 )
{
perror ( "gpio/export" );
pr_error ( "gpio/export" );
return -1;
}
@ -63,7 +117,7 @@ int gpio_unexport ( unsigned int gpio )
fd = open ( SYSFS_GPIO_DIR "/unexport", O_WRONLY );
if ( fd < 0 )
{
perror ( "gpio/unexport" );
pr_error ( "gpio/unexport" );
return -1;
}
@ -91,7 +145,7 @@ int gpio_set_dir ( unsigned int gpio, unsigned int out_flag )
fd = open ( buf, O_WRONLY );
if ( fd < 0 )
{
perror ( "gpio/direction" );
pr_error ( "gpio/direction" );
return -1;
}
@ -121,7 +175,7 @@ int gpio_set_value ( unsigned int gpio, unsigned int value )
fd = open ( buf, O_WRONLY );
if ( fd < 0 )
{
perror ( "gpio/set-value" );
pr_error ( "gpio/set-value" );
return -1;
}
@ -148,7 +202,7 @@ int gpio_get_value ( unsigned int gpio )
fd = open ( buf, O_RDONLY );
if ( fd < 0 )
{
perror ( "gpio/get-value" );
pr_error ( "gpio/get-value" );
return -1;
}
@ -173,7 +227,7 @@ int gpio_open_fd ( unsigned int gpio ) {
fd = open ( buf, O_RDWR );
if ( fd < 0 )
{
perror ( "gpio/get-value" );
pr_error ( "gpio/get-value" );
return -1;
}
return fd;
@ -221,4 +275,4 @@ int gpio_get_value_fd (int fd, unsigned int gpio)
return value == '1';
}
#endif