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/*
* 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
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