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#ifndef TUXCTL_LD_H

#define TUXCTL_LD_H

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/fs.h>

#include <linux/tty.h>

/* tuxctl-ld.h

* Interface between line discipline and driver */

/* tuxctl_ldisc_get()

* Read bytes that the line-discipline has received from the controller.

* Returns the number of bytes actually read, or -1 on error (if, for

* example, the first argument is invalid.

*/

extern int tuxctl_ldisc_get(struct tty_struct*, char *, int);

/* tuxctl_ldisc_put()

* Write bytes out to the device. Returns the number of bytes *not* written.

* This means, 0 on success and >0 if the line discipline's internal buffer

* is full.

*/

extern int tuxctl_ldisc_put(struct tty_struct*, char const*, int);

/* tuxctl_handle_packet

* To be written by the student. This function will handle a

* packet sent to the computer from the tux controller. This is

* called by tuxctl_ldisc_data_callback().

*/

void tuxctl_handle_packet(struct tty_struct *tty, unsigned char *packet);

/* ioctl for the line discipline that the students will implement.

* Located in tuxctl.c

*/

extern int tuxctl_ioctl(struct tty_struct * tty, struct file *, unsigned int cmd, unsigned long arg);

#endif