| /* |
| * 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 */ |
