/* * RTLinux FIFOs * *  Copyright (C) 1999  Finite State Machine Labs Inc. (http://www.fsmlabs.com/) *  Written by Michael Barabanov <baraban@fsmlabs.com>, 1995-2000 */#ifndef __RTF__#define __RTF__#include <rtl_conf.h>#define RTF_NO (CONFIG_RTL_NFIFOS)#define RTL_MAX_USER_FIFO RTF_NO#define RTF_MAX_FIFO (RTL_MAX_USER_FIFO + 8)#define RTF_SETSIZE 1#ifdef __KERNEL__extern int rtf_init(void);extern int rtf_create_handler(unsigned int fifo,		int (*handler)(unsigned int fifo));extern int rtf_create_rt_handler(unsigned int fifo,		int (*handler)(unsigned int fifo));struct module;extern struct module __this_module;extern int __rtf_create(unsigned int fifo, int size, struct module *mod);#define rtf_create(fifo, size) __rtf_create(fifo, size, &__this_module)/* bidirectional FIFOs: * fifo is for rtf_get (user-space write), * fifo_put is for rtf_put (user-space read) */ extern int rtf_make_user_pair (unsigned int fifo, unsigned int fifo_put);extern int rtf_link_user_ioctl (unsigned int fifo,		int (*handler)(unsigned int fifo, unsigned int cmd, unsigned long arg));extern int rtf_destroy(unsigned int fifo);extern int rtf_flush(unsigned int fifo);extern int rtf_isempty(unsigned int fifo);extern int rtf_isused(unsigned int fifo);extern int rtf_resize(unsigned int minor, int size);extern int rtf_put(unsigned int fifo, void * buf, int count);extern int rtf_get(unsigned int fifo, void * buf, int count);#define RTFSETSIZE 0#define RTFMMAPABLE 1#endif#endif