Subversion Repositories openrisc_2011-10-31

/* fd.h -- Declaration of functions for peripheral to

 * communicate with host through file descriptors

   Copyright (C) 2002 Richard Prescott <rip@step.polymtl.ca>

   Copyright (C) 2008 Embecosm Limited

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.

   This program is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by the Free

   Software Foundation; either version 3 of the License, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful, but WITHOUT

   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

   more details.

   You should have received a copy of the GNU General Public License along

   with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* This program is commented throughout in a fashion suitable for processing

   with Doxygen. */

#ifndef FD__H

#define FD__H

/*! Data structure to represent a channel through file descriptors */

struct fd_channel

{

  int fdin;

  int fdout;

};

/* Global data structures */

extern struct channel_ops  fd_channel_ops;

/* Function prototypes for external use */

extern int fd_read (void *data,

                    char *buffer,

                    int   size);

extern int fd_write (void       *data,

                     const char *buffer,

                     int         size);

#endif  /* FD__H */