Release 4.7 net/irda/irnet/irnet_ppp.h
/*
* 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 const 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,
.llseek = noop_llseek,
/* 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 */
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