99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
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/*-
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* Copyright (c) 2000 Doug Rabson
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <stand.h>
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#include "bootstrap.h"
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#include "libski.h"
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static void
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ski_cons_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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ski_cons_init(int arg)
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{
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ssc(0, 0, 0, 0, SSC_CONSOLE_INIT);
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return 0;
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}
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void
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ski_cons_putchar(int c)
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{
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ssc(c, 0, 0, 0, SSC_PUTCHAR);
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}
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static int pollchar = -1;
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int
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ski_cons_getchar()
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{
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int c;
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if (pollchar > 0) {
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c = pollchar;
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pollchar = -1;
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return c;
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}
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do {
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c = ssc(0, 0, 0, 0, SSC_GETCHAR);
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} while (c == 0);
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return c;
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}
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int
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ski_cons_poll()
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{
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int c;
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if (pollchar > 0)
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return 1;
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c = ssc(0, 0, 0, 0, SSC_GETCHAR);
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if (!c)
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return 0;
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pollchar = c;
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return 1;
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}
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struct console ski_console = {
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"ski",
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"ia64 SKI console",
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0,
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ski_cons_probe,
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ski_cons_init,
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ski_cons_putchar,
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ski_cons_getchar,
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ski_cons_poll
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};
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