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/* Serial port emulation via sockets.
Copyright (C) 1998-2020 Free Software Foundation, Inc.
This file is part of the GNU simulators.
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/>. */
#ifndef DV_SOCKSER_H
#define DV_SOCKSER_H
#include "sim-inline.h"
/* bits in result of dev_sockser_status */
#define DV_SOCKSER_INPUT_EMPTY 0x1
#define DV_SOCKSER_OUTPUT_EMPTY 0x2
#define DV_SOCKSER_DISCONNECTED 0x4
#ifdef HAVE_DV_SOCKSER
/* FIXME: later add a device ptr arg */
extern int dv_sockser_status (SIM_DESC);
int dv_sockser_write (SIM_DESC, unsigned char);
int dv_sockser_write_buffer (SIM_DESC, const unsigned char *, unsigned);
int dv_sockser_read (SIM_DESC);
SIM_RC dv_sockser_install (SIM_DESC);
#else
/* If dv-sockser isn't available, provide stub functions. */
STATIC_INLINE int
dv_sockser_status (SIM_DESC sd)
{
return (DV_SOCKSER_INPUT_EMPTY |
DV_SOCKSER_OUTPUT_EMPTY |
DV_SOCKSER_DISCONNECTED);
}
STATIC_INLINE int
dv_sockser_write (SIM_DESC sd, unsigned char c)
{
return -1;
}
STATIC_INLINE int
dv_sockser_write_buffer (SIM_DESC sd, const unsigned char *buffer,
unsigned nr_bytes)
{
return -1;
}
STATIC_INLINE int
dv_sockser_read (SIM_DESC sd)
{
return -1;
}
#endif /* HAVE_DV_SOCKSER */
#endif /* DV_SOCKSER_H */
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