mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-30 13:38:40 +00:00
5406460098
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/*
|
|
* IrNET protocol module : Synchronous PPP over an IrDA socket.
|
|
*
|
|
* Jean II - HPL `00 - <jt@hpl.hp.com>
|
|
*
|
|
* This file contains all definitions and declarations necessary for the
|
|
* PPP part of the IrNET module.
|
|
* This file is a private header, so other modules don't want to know
|
|
* what's in there...
|
|
*/
|
|
|
|
#ifndef IRNET_PPP_H
|
|
#define IRNET_PPP_H
|
|
|
|
/***************************** INCLUDES *****************************/
|
|
|
|
#include "irnet.h" /* Module global include */
|
|
|
|
/************************ CONSTANTS & MACROS ************************/
|
|
|
|
/* /dev/irnet file constants */
|
|
#define IRNET_MAJOR 10 /* Misc range */
|
|
#define IRNET_MINOR 187 /* Official allocation */
|
|
|
|
/* IrNET control channel stuff */
|
|
#define IRNET_MAX_COMMAND 256 /* Max length of a command line */
|
|
|
|
/* PPP hardcore stuff */
|
|
|
|
/* Bits in rbits (PPP flags in irnet struct) */
|
|
#define SC_RCV_BITS (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
|
|
|
|
/* Bit numbers in busy */
|
|
#define XMIT_BUSY 0
|
|
#define RECV_BUSY 1
|
|
#define XMIT_WAKEUP 2
|
|
#define XMIT_FULL 3
|
|
|
|
/* Queue management */
|
|
#define PPPSYNC_MAX_RQLEN 32 /* arbitrary */
|
|
|
|
/****************************** TYPES ******************************/
|
|
|
|
|
|
/**************************** PROTOTYPES ****************************/
|
|
|
|
/* ----------------------- CONTROL CHANNEL ----------------------- */
|
|
static inline ssize_t
|
|
irnet_ctrl_write(irnet_socket *,
|
|
const char *,
|
|
size_t);
|
|
static inline ssize_t
|
|
irnet_ctrl_read(irnet_socket *,
|
|
struct file *,
|
|
char *,
|
|
size_t);
|
|
static inline unsigned int
|
|
irnet_ctrl_poll(irnet_socket *,
|
|
struct file *,
|
|
poll_table *);
|
|
/* ----------------------- CHARACTER DEVICE ----------------------- */
|
|
static int
|
|
dev_irnet_open(struct inode *, /* fs callback : open */
|
|
struct file *),
|
|
dev_irnet_close(struct inode *,
|
|
struct file *);
|
|
static ssize_t
|
|
dev_irnet_write(struct file *,
|
|
const char __user *,
|
|
size_t,
|
|
loff_t *),
|
|
dev_irnet_read(struct file *,
|
|
char __user *,
|
|
size_t,
|
|
loff_t *);
|
|
static unsigned int
|
|
dev_irnet_poll(struct file *,
|
|
poll_table *);
|
|
static long
|
|
dev_irnet_ioctl(struct file *,
|
|
unsigned int,
|
|
unsigned long);
|
|
/* ------------------------ PPP INTERFACE ------------------------ */
|
|
static inline struct sk_buff *
|
|
irnet_prepare_skb(irnet_socket *,
|
|
struct sk_buff *);
|
|
static int
|
|
ppp_irnet_send(struct ppp_channel *,
|
|
struct sk_buff *);
|
|
static int
|
|
ppp_irnet_ioctl(struct ppp_channel *,
|
|
unsigned int,
|
|
unsigned long);
|
|
|
|
/**************************** VARIABLES ****************************/
|
|
|
|
/* Filesystem callbacks (to call us) */
|
|
static struct file_operations irnet_device_fops =
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.read = dev_irnet_read,
|
|
.write = dev_irnet_write,
|
|
.poll = dev_irnet_poll,
|
|
.unlocked_ioctl = dev_irnet_ioctl,
|
|
.open = dev_irnet_open,
|
|
.release = dev_irnet_close
|
|
/* Also : llseek, readdir, mmap, flush, fsync, fasync, lock, readv, writev */
|
|
};
|
|
|
|
/* Structure so that the misc major (drivers/char/misc.c) take care of us... */
|
|
static struct miscdevice irnet_misc_device =
|
|
{
|
|
IRNET_MINOR,
|
|
"irnet",
|
|
&irnet_device_fops
|
|
};
|
|
|
|
#endif /* IRNET_PPP_H */
|