viper_dio.c File Reference

#include "viper_dio.h"
#include <linux/module.h>
#include <linux/init.h>
#include <linux/uaccess.h>
#include <mach/hardware.h>
#include <linux/gpio.h>
#include <mach/pxa2xx-regs.h>
#include <nidas/linux/ver_macros.h>
#include <nidas/linux/Revision.h>
#include <nidas/linux/klog.h>
#include <nidas/linux/isa_bus.h>

Macros
#define	REPO_REVISION   "unknown"

Functions
	MODULE_AUTHOR ("Gordon Maclean <maclean@ucar.edu>")
	MODULE_LICENSE ("GPL")
	MODULE_DESCRIPTION ("Driver for VIPER DIO pins")
	MODULE_VERSION (REPO_REVISION)
static void	set_douts (unsigned char bits)
static void	clear_douts (unsigned char bits)
static void	set_douts_val (unsigned char bits, unsigned char value)
static unsigned char	get_douts (void)
static unsigned char	get_dins (void)
static int	viper_dio_open (struct inode *inode, struct file *filp)
static int	viper_dio_release (struct inode *inode, struct file *filp)
static long	viper_dio_ioctl (struct file *filp, unsigned int cmd, unsigned long arg)
static void	viper_dio_cleanup (void)
static int __init	viper_dio_init (void)
	module_init (viper_dio_init)
	module_exit (viper_dio_cleanup)

Variables
static struct VIPER_DIO	viper_dio
static int	_ngpio
static struct file_operations	viper_dio_fops

Macro Definition Documentation

#define REPO_REVISION   "unknown"

Referenced by viper_dio_init().

Function Documentation

static void clear_douts ( unsigned char  bits )

static

Referenced by set_douts_val(), and viper_dio_ioctl().

static unsigned char get_dins ( void  )

static

Referenced by viper_dio_ioctl().

static unsigned char get_douts ( void  )

static

Referenced by viper_dio_ioctl().

MODULE_AUTHOR

(

"Gordon Maclean <maclean@ucar.edu>"

)

MODULE_DESCRIPTION

(

"Driver for VIPER DIO pins"

)

module_exit

(

viper_dio_cleanup

)

module_init

(

viper_dio_init

)

MODULE_LICENSE

(

"GPL"

)

MODULE_VERSION

(

REPO_REVISION

)

static void set_douts ( unsigned char  bits )

static

Referenced by set_douts_val(), and viper_dio_ioctl().

static void set_douts_val ( unsigned char  bits, unsigned char  value  )

static

References clear_douts(), and set_douts().

Referenced by viper_dio_ioctl().

static void viper_dio_cleanup ( void  )

static

References _ngpio, and viper_dio.

Referenced by viper_dio_init().

static int __init viper_dio_init ( void  )

static

References _ngpio, err, REPO_REVISION, viper_dio, viper_dio_cleanup(), and viper_dio_fops.

static long viper_dio_ioctl ( struct file *  filp, unsigned int  cmd, unsigned long  arg  )

static

References clear_douts(), err, get_dins(), get_douts(), set_douts(), set_douts_val(), viper_dio, VIPER_DIO_CLEAR, VIPER_DIO_GET_DIN, VIPER_DIO_GET_DOUT, VIPER_DIO_GET_NIN, VIPER_DIO_GET_NOUT, VIPER_DIO_IOC_MAGIC, VIPER_DIO_IOC_MAXNR, VIPER_DIO_NOUT, VIPER_DIO_SET, and VIPER_DIO_SET_TO_VAL.

static int viper_dio_open ( struct inode *  inode, struct file *  filp  )

static

static int viper_dio_release ( struct inode *  inode, struct file *  filp  )

static

Variable Documentation

int _ngpio

static

Referenced by viper_dio_cleanup(), and viper_dio_init().

struct VIPER_DIO viper_dio

static

Referenced by viper_dio_cleanup(), viper_dio_init(), and viper_dio_ioctl().

struct file_operations viper_dio_fops

static

Initial value:

= {
        .owner   = THIS_MODULE,
        .open    = viper_dio_open,
        .unlocked_ioctl   = viper_dio_ioctl,
        .release = viper_dio_release,
        .llseek  = no_llseek,
}

Referenced by viper_dio_init().