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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* Serial port emulation via sockets.
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Copyright (C) 1998-2017 Free Software Foundation, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef DV_SOCKSER_H
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#define DV_SOCKSER_H
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#include "sim-inline.h"
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/* bits in result of dev_sockser_status */
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#define DV_SOCKSER_INPUT_EMPTY 0x1
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#define DV_SOCKSER_OUTPUT_EMPTY 0x2
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#define DV_SOCKSER_DISCONNECTED 0x4
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#ifdef HAVE_DV_SOCKSER
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/* FIXME: later add a device ptr arg */
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extern int dv_sockser_status (SIM_DESC);
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int dv_sockser_write (SIM_DESC, unsigned char);
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int dv_sockser_write_buffer (SIM_DESC, const unsigned char *, unsigned);
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int dv_sockser_read (SIM_DESC);
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SIM_RC dv_sockser_install (SIM_DESC);
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#else
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/* If dv-sockser isn't available, provide stub functions. */
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STATIC_INLINE int
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dv_sockser_status (SIM_DESC sd)
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{
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return (DV_SOCKSER_INPUT_EMPTY |
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DV_SOCKSER_OUTPUT_EMPTY |
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DV_SOCKSER_DISCONNECTED);
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}
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STATIC_INLINE int
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dv_sockser_write (SIM_DESC sd, unsigned char c)
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{
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return -1;
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}
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STATIC_INLINE int
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dv_sockser_write_buffer (SIM_DESC sd, const unsigned char *buffer,
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unsigned nr_bytes)
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{
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return -1;
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}
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STATIC_INLINE int
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dv_sockser_read (SIM_DESC sd)
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{
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return -1;
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}
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#endif /* HAVE_DV_SOCKSER */
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#endif /* DV_SOCKSER_H */
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