98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*-
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* Copyright (C) 2014 Nathan Whitehorn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include "bootstrap.h"
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#include "host_syscall.h"
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static void hostcons_probe(struct console *cp);
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static int hostcons_init(int arg);
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static void hostcons_putchar(int c);
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static int hostcons_getchar();
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static int hostcons_poll();
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struct console hostconsole = {
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"host",
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"Host Console",
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0,
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hostcons_probe,
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hostcons_init,
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hostcons_putchar,
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hostcons_getchar,
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hostcons_poll,
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};
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static void
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hostcons_probe(struct console *cp)
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{
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cp->c_flags |= C_PRESENTIN|C_PRESENTOUT;
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}
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static int
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hostcons_init(int arg)
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{
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/* XXX: set nonblocking */
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/* tcsetattr(~(ICANON | ECHO)) */
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return (0);
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}
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static void
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hostcons_putchar(int c)
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{
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uint8_t ch = c;
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host_write(1, &ch, 1);
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}
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static int
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hostcons_getchar()
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{
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uint8_t ch;
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int rv;
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rv = host_read(0, &ch, 1);
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if (rv == 1)
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return (ch);
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return (-1);
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}
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static int
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hostcons_poll()
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{
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struct host_timeval tv = {0,0};
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long fds = 1 << 0;
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int ret;
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ret = host_select(32, &fds, NULL, NULL, &tv);
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return (ret > 0);
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}
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