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Rev 5 → Rev 6

/sport/trunk/sw/api/wiegand_api.c
0,0 → 1,14
#include <stdlib.h>
#include "weigand_api.h"
 
 
//standard Wiegand-based protocols
int wiegand26_write();
int wiegand26_read();
int wiegand39_write();
int wiegand39_read();
int wiegand8BitBurst_write();
int wiegand8BitBurst_read();
int parityCalc(&char bitString, int start, int end){
}
/sport/trunk/sw/api/wiegand_api.h
0,0 → 1,15
#include <stdlib.h>
 
struct wiegand26{
char
}wiegand26
 
 
//standard Wiegand-based protocols
int wiegand26_write();
int wiegand26_read();
int wiegand39_write();
int wiegand39_read();
int wiegand8BitBurst_write();
int wiegand8BitBurst_read();
int parityCalc(&char bitString, int start, int end);
/sport/trunk/sw/driver/linux/wiegand_drv.c
0,0 → 1,131
/* Necessary includes for drivers */
#include <linux/init.h>
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h> /* printk() */
#include <linux/slab.h> /* kmalloc() */
#include <linux/fs.h> /* everything... */
#include <linux/errno.h> /* error codes */
#include <linux/types.h> /* size_t */
#include <linux/proc_fs.h>
#include <linux/fcntl.h> /* O_ACCMODE */
#include <linux/ioport.h>
#include <asm/system.h> /* cli(), *_flags */
#include <asm/uaccess.h> /* copy_from/to_user */
#include <asm/io.h> /* inb, outb */
 
MODULE_LICENSE("Dual BSD/GPL");
 
/* Function declaration of parlelport.c */
int parlelport_open(struct inode *inode, struct file *filp);
int parlelport_release(struct inode *inode, struct file *filp);
ssize_t parlelport_read(struct file *filp, char *buf,
size_t count, loff_t *f_pos);
ssize_t parlelport_write(struct file *filp, char *buf,
size_t count, loff_t *f_pos);
void parlelport_exit(void);
int parlelport_init(void);
 
/* Structure that declares the common */
/* file access fcuntions */
struct file_operations parlelport_fops = {
read: parlelport_read,
write: parlelport_write,
open: parlelport_open,
release: parlelport_release
};
 
/* Driver global variables */
/* Major number */
int parlelport_major = 61;
 
/* Control variable for memory */
/* reservation of the parallel port*/
int port;
 
module_init(parlelport_init);
module_exit(parlelport_exit);
 
int parlelport_init(void) {
int result;
 
/* Registering device */
result = register_chrdev(parlelport_major, "parlelport",
&parlelport_fops);
if (result < 0) {
printk(
"<1>parlelport: cannot obtain major number %d\n",
parlelport_major);
return result;
}
<parlelport modified init module>
 
printk("<1>Inserting parlelport module\n");
return 0;
 
fail:
parlelport_exit();
return result;
}
 
void parlelport_exit(void) {
 
/* Make major number free! */
unregister_chrdev(parlelport_major, "parlelport");
 
<parlelport modified exit module>
 
printk("<1>Removing parlelport module\n");
}
 
int parlelport_open(struct inode *inode, struct file *filp) {
 
/* Success */
return 0;
 
}
 
int parlelport_release(struct inode *inode, struct file *filp) {
 
/* Success */
return 0;
}
 
ssize_t parlelport_read(struct file *filp, char *buf,
size_t count, loff_t *f_pos) {
/* Buffer to read the device */
char parlelport_buffer;
 
<parlelport inport>
 
/* We transfer data to user space */
copy_to_user(buf,&parlelport_buffer,1);
/* We change the reading position as best suits */
if (*f_pos == 0) {
*f_pos+=1;
return 1;
} else {
return 0;
}
}
 
ssize_t parlelport_write( struct file *filp, char *buf,
size_t count, loff_t *f_pos) {
 
char *tmp;
 
/* Buffer writing to the device */
char parlelport_buffer;
 
tmp=buf+count-1;
copy_from_user(&parlelport_buffer,tmp,1);
 
<parlelport outport>
return 1;
}
 
 

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