8f8e587948
modular compilation harder. I'm doing this because people seem to like cut/pasting examples of bad practices in existing code.
152 lines
3.8 KiB
C
152 lines
3.8 KiB
C
/*-
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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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 as
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* the first lines of this file unmodified.
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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 AUTHORS ``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 THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_syscons.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/consio.h>
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#include <machine/pc/display.h>
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#include <dev/syscons/syscons.h>
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#include <dev/syscons/sctermvar.h>
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#ifdef SC_DUMB_TERMINAL
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/* dumb terminal emulator */
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static sc_term_init_t dumb_init;
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static sc_term_term_t dumb_term;
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static sc_term_puts_t dumb_puts;
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static sc_term_ioctl_t dumb_ioctl;
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static sc_term_clear_t dumb_clear;
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static sc_term_input_t dumb_input;
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static void dumb_nop(void);
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static sc_term_sw_t sc_term_dumb = {
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{ NULL, NULL },
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"dumb", /* emulator name */
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"dumb terminal", /* description */
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"*", /* matching renderer */
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0, /* softc size */
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0,
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dumb_init,
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dumb_term,
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dumb_puts,
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dumb_ioctl,
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(sc_term_reset_t *)dumb_nop,
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(sc_term_default_attr_t *)dumb_nop,
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dumb_clear,
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(sc_term_notify_t *)dumb_nop,
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dumb_input,
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};
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SCTERM_MODULE(dumb, sc_term_dumb);
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static int
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dumb_init(scr_stat *scp, void **softc, int code)
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{
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switch (code) {
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case SC_TE_COLD_INIT:
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++sc_term_dumb.te_refcount;
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break;
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case SC_TE_WARM_INIT:
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break;
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}
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return 0;
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}
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static int
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dumb_term(scr_stat *scp, void **softc)
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{
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--sc_term_dumb.te_refcount;
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return 0;
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}
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static void
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dumb_puts(scr_stat *scp, u_char *buf, int len)
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{
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while (len > 0) {
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++scp->sc->write_in_progress;
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sc_term_gen_print(scp, &buf, &len, SC_NORM_ATTR << 8);
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sc_term_gen_scroll(scp, scp->sc->scr_map[0x20],
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SC_NORM_ATTR << 8);
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--scp->sc->write_in_progress;
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}
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}
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static int
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dumb_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
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int flag, struct proc *p)
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{
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vid_info_t *vi;
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switch (cmd) {
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case GIO_ATTR: /* get current attributes */
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*(int*)data = SC_NORM_ATTR;
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return 0;
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case CONS_GETINFO: /* get current (virtual) console info */
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vi = (vid_info_t *)data;
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if (vi->size != sizeof(struct vid_info))
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return EINVAL;
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vi->mv_norm.fore = SC_NORM_ATTR & 0x0f;
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vi->mv_norm.back = (SC_NORM_ATTR >> 4) & 0x0f;
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vi->mv_rev.fore = SC_NORM_ATTR & 0x0f;
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vi->mv_rev.back = (SC_NORM_ATTR >> 4) & 0x0f;
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/*
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* The other fields are filled by the upper routine. XXX
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*/
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return ENOIOCTL;
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}
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return ENOIOCTL;
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}
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static void
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dumb_clear(scr_stat *scp)
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{
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sc_move_cursor(scp, 0, 0);
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sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8);
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mark_all(scp);
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}
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static int
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dumb_input(scr_stat *scp, int c, struct tty *tp)
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{
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return FALSE;
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}
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static void
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dumb_nop(void)
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{
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/* nothing */
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}
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#endif /* SC_DUMB_TERMINAL */
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