38a227be7a
will be committed later. The "sc" emulator has the advantages of full support for cons25 and running about 8 times faster than teken (for writing to the frame buffer). The "dumb" emulator has the advantage of being simple. Runtime choice of the emulator is good, but compile time choice is bad.
156 lines
3.9 KiB
C
156 lines
3.9 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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/consio.h>
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#if defined(__sparc64__) || defined(__powerpc__)
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#include <machine/sc_machdep.h>
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#else
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#include <machine/pc/display.h>
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#endif
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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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