659 lines
15 KiB
C
659 lines
15 KiB
C
/* $NetBSD: rcons_subr.c,v 1.18 2009/03/14 21:04:22 dsl Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)rcons_subr.c 8.1 (Berkeley) 6/11/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rcons_subr.c,v 1.18 2009/03/14 21:04:22 dsl Exp $");
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#include <sys/param.h>
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#ifdef _KERNEL
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#include <sys/device.h>
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#include <sys/systm.h>
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#else
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#include "myfbdevice.h"
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#endif
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#include <dev/rcons/rcons.h>
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#include <dev/wscons/wsdisplayvar.h>
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extern void rcons_bell(struct rconsole *);
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#if 0
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#define RCONS_ISPRINT(c) ((((c) >= ' ') && ((c) <= '~')) || ((c) > 160))
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#else
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#define RCONS_ISPRINT(c) (((((c) >= ' ') && ((c) <= '~'))) || ((c) > 127))
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#endif
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#define RCONS_ISDIGIT(c) ((c) >= '0' && (c) <= '9')
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/* Initialize our operations set */
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void
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rcons_init_ops(struct rconsole *rc)
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{
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long tmp;
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int i, m;
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m = sizeof(rc->rc_charmap) / sizeof(rc->rc_charmap[0]);
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for (i = 0; i < m; i++)
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rc->rc_ops->mapchar(rc->rc_cookie, i, rc->rc_charmap + i);
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/* Determine which attributes the device supports. */
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#ifdef RASTERCONSOLE_FGCOL
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rc->rc_deffgcolor = RASTERCONSOLE_FGCOL;
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#endif
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#ifdef RASTERCONSOLE_BGCOL
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rc->rc_defbgcolor = RASTERCONSOLE_BGCOL;
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#endif
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rc->rc_fgcolor = rc->rc_deffgcolor;
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rc->rc_bgcolor = rc->rc_defbgcolor;
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rc->rc_supwsflg = 0;
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for (i = 1; i < 256; i <<= 1)
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if (rc->rc_ops->allocattr(rc->rc_cookie, 0, 0, i, &tmp) == 0)
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rc->rc_supwsflg |= i;
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/* Allocate kernel output attribute */
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rc->rc_wsflg = WSATTR_HILIT;
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rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor);
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rc->rc_kern_attr = rc->rc_attr;
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rc->rc_wsflg = 0;
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rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor);
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rc->rc_defattr = rc->rc_attr;
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}
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/* Output (or at least handle) a string sent to the console */
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void
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rcons_puts(struct rconsole *rc, const unsigned char *str, int n)
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{
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int c, i, j;
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const unsigned char *cp;
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/* Jump scroll */
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/* XXX maybe this should be an option? */
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if ((rc->rc_bits & FB_INESC) == 0) {
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/* Count newlines up to an escape sequence */
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i = 0;
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j = 0;
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for (cp = str; j++ < n && *cp != '\033'; ++cp) {
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if (*cp == '\n')
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++i;
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else if (*cp == '\013')
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--i;
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}
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/* Only jump scroll two or more rows */
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if (rc->rc_row + i > rc->rc_maxrow + 1) {
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/* Erase the cursor (if necessary) */
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if (rc->rc_bits & FB_CURSOR)
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rcons_cursor(rc);
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rcons_scroll(rc, i);
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}
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}
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/* Process characters */
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while (--n >= 0) {
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c = *str;
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if (c == '\033') {
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/* Start an escape (perhaps aborting one in progress) */
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rc->rc_bits |= FB_INESC | FB_P0_DEFAULT | FB_P1_DEFAULT;
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rc->rc_bits &= ~(FB_P0 | FB_P1);
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/* Most parameters default to 1 */
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rc->rc_p0 = rc->rc_p1 = 1;
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} else if (rc->rc_bits & FB_INESC) {
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rcons_esc(rc, c);
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} else {
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/* Erase the cursor (if necessary) */
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if (rc->rc_bits & FB_CURSOR)
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rcons_cursor(rc);
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/* Display the character */
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if (RCONS_ISPRINT(c)) {
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/* Try to output as much as possible */
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j = rc->rc_maxcol - rc->rc_col;
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if (j > n)
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j = n;
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for (i = 1; i < j && RCONS_ISPRINT(str[i]); ++i)
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continue;
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rcons_text(rc, str, i);
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--i;
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str += i;
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n -= i;
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} else
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rcons_pctrl(rc, c);
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}
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++str;
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}
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/* Redraw the cursor (if necessary) */
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if ((rc->rc_bits & FB_CURSOR) == 0)
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rcons_cursor(rc);
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}
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/* Handle a control character sent to the console */
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void
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rcons_pctrl(struct rconsole *rc, int c)
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{
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switch (c) {
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case '\r': /* Carriage return */
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rc->rc_col = 0;
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break;
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case '\b': /* Backspace */
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if (rc->rc_col > 0)
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(rc->rc_col)--;
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break;
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case '\v': /* Vertical tab */
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if (rc->rc_row > 0)
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(rc->rc_row)--;
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break;
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case '\f': /* Formfeed */
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rc->rc_row = rc->rc_col = 0;
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rcons_clear2eop(rc);
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break;
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case '\n': /* Linefeed */
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(rc->rc_row)++;
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if (rc->rc_row >= rc->rc_maxrow)
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rcons_scroll(rc, 1);
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break;
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case '\a': /* Bell */
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rcons_bell(rc);
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break;
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case '\t': /* Horizontal tab */
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rc->rc_col = (rc->rc_col + 8) & ~7;
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if (rc->rc_col >= rc->rc_maxcol)
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rc->rc_col = rc->rc_maxcol;
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break;
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}
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}
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/* Handle the next character in an escape sequence */
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void
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rcons_esc(struct rconsole *rc, int c)
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{
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if (c == '[') {
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/* Parameter 0 */
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rc->rc_bits &= ~FB_P1;
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rc->rc_bits |= FB_P0;
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} else if (c == ';') {
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/* Parameter 1 */
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rc->rc_bits &= ~FB_P0;
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rc->rc_bits |= FB_P1;
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} else if (RCONS_ISDIGIT(c)) {
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/* Add a digit to a parameter */
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if (rc->rc_bits & FB_P0) {
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/* Parameter 0 */
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if (rc->rc_bits & FB_P0_DEFAULT) {
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rc->rc_bits &= ~FB_P0_DEFAULT;
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rc->rc_p0 = 0;
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}
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rc->rc_p0 *= 10;
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rc->rc_p0 += c - '0';
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} else if (rc->rc_bits & FB_P1) {
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/* Parameter 1 */
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if (rc->rc_bits & FB_P1_DEFAULT) {
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rc->rc_bits &= ~FB_P1_DEFAULT;
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rc->rc_p1 = 0;
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}
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rc->rc_p1 *= 10;
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rc->rc_p1 += c - '0';
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}
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} else {
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/* Erase the cursor (if necessary) */
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if (rc->rc_bits & FB_CURSOR)
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rcons_cursor(rc);
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/* Process the completed escape sequence */
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rcons_doesc(rc, c);
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rc->rc_bits &= ~FB_INESC;
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}
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}
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/* Handle an SGR (Select Graphic Rendition) escape */
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void
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rcons_sgresc(struct rconsole *rc, int c)
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{
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switch (c) {
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/* Clear all attributes || End underline */
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case 0:
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rc->rc_wsflg = 0;
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rc->rc_fgcolor = rc->rc_deffgcolor;
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rc->rc_bgcolor = rc->rc_defbgcolor;
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rc->rc_attr = rc->rc_defattr;
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break;
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/* ANSI foreground color */
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case 30: case 31: case 32: case 33:
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case 34: case 35: case 36: case 37:
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rcons_setcolor(rc, c - 30, rc->rc_bgcolor);
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break;
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/* ANSI background color */
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case 40: case 41: case 42: case 43:
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case 44: case 45: case 46: case 47:
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rcons_setcolor(rc, rc->rc_fgcolor, c - 40);
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break;
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/* Begin reverse */
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case 7:
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rc->rc_wsflg |= WSATTR_REVERSE;
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rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
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break;
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/* Begin bold */
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case 1:
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rc->rc_wsflg |= WSATTR_HILIT;
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rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
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break;
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/* Begin underline */
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case 4:
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rc->rc_wsflg |= WSATTR_UNDERLINE;
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rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
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break;
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}
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}
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/* Process a complete escape sequence */
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void
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rcons_doesc(struct rconsole *rc, int c)
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{
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#ifdef notdef
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/* XXX add escape sequence to enable visual (and audible) bell */
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rc->rc_bits = FB_VISBELL;
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#endif
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switch (c) {
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case '@':
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/* Insert Character (ICH) */
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rcons_insertchar(rc, rc->rc_p0);
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break;
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case 'A':
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/* Cursor Up (CUU) */
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if (rc->rc_row >= rc->rc_p0)
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rc->rc_row -= rc->rc_p0;
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else
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rc->rc_row = 0;
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break;
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case 'B':
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/* Cursor Down (CUD) */
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rc->rc_row += rc->rc_p0;
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if (rc->rc_row >= rc->rc_maxrow)
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rc->rc_row = rc->rc_maxrow - 1;
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break;
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case 'C':
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/* Cursor Forward (CUF) */
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rc->rc_col += rc->rc_p0;
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if (rc->rc_col >= rc->rc_maxcol)
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rc->rc_col = rc->rc_maxcol - 1;
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break;
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case 'D':
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/* Cursor Backward (CUB) */
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if (rc->rc_col >= rc->rc_p0)
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rc->rc_col -= rc->rc_p0;
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else
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rc->rc_col = 0;
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break;
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case 'E':
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/* Cursor Next Line (CNL) */
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rc->rc_col = 0;
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rc->rc_row += rc->rc_p0;
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if (rc->rc_row >= rc->rc_maxrow)
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rc->rc_row = rc->rc_maxrow - 1;
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break;
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case 'f':
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/* Horizontal And Vertical Position (HVP) */
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case 'H':
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/* Cursor Position (CUP) */
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rc->rc_col = MIN(MAX(rc->rc_p1, 1), rc->rc_maxcol) - 1;
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rc->rc_row = MIN(MAX(rc->rc_p0, 1), rc->rc_maxrow) - 1;
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break;
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case 'J':
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/* Erase in Display (ED) */
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rcons_clear2eop(rc);
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break;
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case 'K':
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/* Erase in Line (EL) */
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rcons_clear2eol(rc);
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break;
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case 'L':
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/* Insert Line (IL) */
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rcons_insertline(rc, rc->rc_p0);
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break;
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case 'M':
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/* Delete Line (DL) */
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rcons_delline(rc, rc->rc_p0);
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break;
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case 'P':
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/* Delete Character (DCH) */
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rcons_delchar(rc, rc->rc_p0);
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break;
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case 'm':
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/* Select Graphic Rendition (SGR) */
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/* (defaults to zero) */
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if (rc->rc_bits & FB_P0_DEFAULT)
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rc->rc_p0 = 0;
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if (rc->rc_bits & FB_P1_DEFAULT)
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rc->rc_p1 = 0;
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rcons_sgresc(rc, rc->rc_p0);
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if (rc->rc_bits & FB_P1)
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rcons_sgresc(rc, rc->rc_p1);
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break;
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/*
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* XXX: setting SUNBOW and SUNWOB should probably affect
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* deffgcolor, defbgcolor and defattr too.
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*/
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case 'p':
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/* Black On White (SUNBOW) */
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rcons_setcolor(rc, WSCOL_BLACK, WSCOL_WHITE);
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break;
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case 'q':
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/* White On Black (SUNWOB) */
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rcons_setcolor(rc, WSCOL_WHITE, WSCOL_BLACK);
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break;
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case 'r':
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/* Set scrolling (SUNSCRL) */
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/* (defaults to zero) */
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if (rc->rc_bits & FB_P0_DEFAULT)
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rc->rc_p0 = 0;
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/* XXX not implemented yet */
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rc->rc_scroll = rc->rc_p0;
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break;
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case 's':
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/* Reset terminal emulator (SUNRESET) */
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rc->rc_wsflg = 0;
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rc->rc_scroll = 0;
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rc->rc_bits &= ~FB_NO_CURSOR;
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rc->rc_fgcolor = rc->rc_deffgcolor;
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rc->rc_bgcolor = rc->rc_defbgcolor;
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rc->rc_attr = rc->rc_defattr;
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if (rc->rc_bits & FB_INVERT)
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rcons_invert(rc, 0);
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break;
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#ifdef notyet
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/*
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* XXX following two read \E[?25h and \E[?25l. rcons
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* can't currently handle the '?'.
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*/
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case 'h':
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/* Normal/very visible cursor */
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if (rc->rc_p0 == 25) {
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rc->rc_bits &= ~FB_NO_CURSOR;
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if (rc->rc_bits & FB_CURSOR) {
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rc->rc_bits ^= FB_CURSOR;
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rcons_cursor(rc);
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}
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}
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break;
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case 'l':
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/* Invisible cursor */
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if (rc->rc_p0 == 25 && (rc->rc_bits & FB_NO_CURSOR) == 0) {
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if (rc->rc_bits & FB_CURSOR)
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rcons_cursor(rc);
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rc->rc_bits |= FB_NO_CURSOR;
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}
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break;
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#endif
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}
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}
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/* Set ANSI colors */
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void
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rcons_setcolor(struct rconsole *rc, int fg, int bg)
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{
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int flg;
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if (fg > WSCOL_WHITE || fg < 0)
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return;
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if (bg > WSCOL_WHITE || bg < 0)
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return;
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#ifdef RASTERCONS_WONB
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flg = bg;
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bg = fg;
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fg = flg;
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#endif
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/* Emulate WSATTR_REVERSE attribute if it's not supported */
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if ((rc->rc_wsflg & WSATTR_REVERSE) &&
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!(rc->rc_supwsflg & WSATTR_REVERSE)) {
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flg = bg;
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bg = fg;
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fg = flg;
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}
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/*
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* Mask out unsupported flags and get attribute
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* XXX - always ask for WSCOLORS if supported (why shouldn't we?)
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*/
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flg = (rc->rc_wsflg | WSATTR_WSCOLORS) & rc->rc_supwsflg;
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rc->rc_bgcolor = bg;
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rc->rc_fgcolor = fg;
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rc->rc_ops->allocattr(rc->rc_cookie, fg, bg, flg, &rc->rc_attr);
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}
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/* Actually write a string to the frame buffer */
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void
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rcons_text(struct rconsole *rc, const unsigned char *str, int n)
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{
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u_int uc;
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while (n--) {
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uc = rc->rc_charmap[*str++ & 255];
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rc->rc_ops->putchar(rc->rc_cookie, rc->rc_row, rc->rc_col++,
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uc, rc->rc_attr);
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}
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if (rc->rc_col >= rc->rc_maxcol) {
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rc->rc_col = 0;
|
|
rc->rc_row++;
|
|
}
|
|
|
|
if (rc->rc_row >= rc->rc_maxrow)
|
|
rcons_scroll(rc, 1);
|
|
}
|
|
|
|
/* Paint (or unpaint) the cursor */
|
|
void
|
|
rcons_cursor(struct rconsole *rc)
|
|
{
|
|
rc->rc_bits ^= FB_CURSOR;
|
|
|
|
if (rc->rc_bits & FB_NO_CURSOR)
|
|
return;
|
|
|
|
rc->rc_ops->cursor(rc->rc_cookie, rc->rc_bits & FB_CURSOR,
|
|
rc->rc_row, rc->rc_col);
|
|
}
|
|
|
|
/* Possibly change to SUNWOB or SUNBOW mode */
|
|
void
|
|
rcons_invert(struct rconsole *rc, int wob)
|
|
{
|
|
|
|
rc->rc_bits ^= FB_INVERT;
|
|
/* XXX how do we do we invert the framebuffer?? */
|
|
}
|
|
|
|
/* Clear to the end of the page */
|
|
void
|
|
rcons_clear2eop(struct rconsole *rc)
|
|
{
|
|
if (rc->rc_col || rc->rc_row) {
|
|
rcons_clear2eol(rc);
|
|
|
|
if (rc->rc_row < (rc->rc_maxrow - 1))
|
|
rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row + 1,
|
|
rc->rc_maxrow, rc->rc_attr);
|
|
} else
|
|
rc->rc_ops->eraserows(rc->rc_cookie, 0, rc->rc_maxrow,
|
|
rc->rc_attr);
|
|
}
|
|
|
|
/* Clear to the end of the line */
|
|
void
|
|
rcons_clear2eol(struct rconsole *rc)
|
|
{
|
|
rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col,
|
|
rc->rc_maxcol - rc->rc_col, rc->rc_attr);
|
|
}
|
|
|
|
|
|
/* Scroll up */
|
|
void
|
|
rcons_scroll(struct rconsole *rc, int n)
|
|
{
|
|
/* Can't scroll more than the whole screen */
|
|
if (n > rc->rc_maxrow)
|
|
n = rc->rc_maxrow;
|
|
|
|
/* Calculate new row */
|
|
if (rc->rc_row >= n)
|
|
rc->rc_row -= n;
|
|
else
|
|
rc->rc_row = 0;
|
|
|
|
rc->rc_ops->copyrows(rc->rc_cookie, n, 0, rc->rc_maxrow - n);
|
|
rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n, rc->rc_attr);
|
|
}
|
|
|
|
/* Delete characters */
|
|
void
|
|
rcons_delchar(struct rconsole *rc, int n)
|
|
{
|
|
/* Can't delete more chars than there are */
|
|
if (n > rc->rc_maxcol - rc->rc_col)
|
|
n = rc->rc_maxcol - rc->rc_col;
|
|
|
|
rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col + n,
|
|
rc->rc_col, rc->rc_maxcol - rc->rc_col - n);
|
|
|
|
rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row,
|
|
rc->rc_maxcol - n, n, rc->rc_attr);
|
|
}
|
|
|
|
/* Delete a number of lines */
|
|
void
|
|
rcons_delline(struct rconsole *rc, int n)
|
|
{
|
|
/* Can't delete more lines than there are */
|
|
if (n > rc->rc_maxrow - rc->rc_row)
|
|
n = rc->rc_maxrow - rc->rc_row;
|
|
|
|
rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row + n, rc->rc_row,
|
|
rc->rc_maxrow - rc->rc_row - n);
|
|
|
|
rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n,
|
|
rc->rc_attr);
|
|
}
|
|
|
|
/* Insert some characters */
|
|
void
|
|
rcons_insertchar(struct rconsole *rc, int n)
|
|
{
|
|
/* Can't insert more chars than can fit */
|
|
if (n > rc->rc_maxcol - rc->rc_col)
|
|
n = rc->rc_maxcol - rc->rc_col - 1;
|
|
|
|
rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col,
|
|
rc->rc_col + n, rc->rc_maxcol - rc->rc_col - n - 1);
|
|
|
|
rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col,
|
|
n, rc->rc_attr);
|
|
}
|
|
|
|
/* Insert some lines */
|
|
void
|
|
rcons_insertline(struct rconsole *rc, int n)
|
|
{
|
|
/* Can't insert more lines than can fit */
|
|
if (n > rc->rc_maxrow - rc->rc_row)
|
|
n = rc->rc_maxrow - rc->rc_row;
|
|
|
|
rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row, rc->rc_row + n,
|
|
rc->rc_maxrow - rc->rc_row - n);
|
|
|
|
rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row, n,
|
|
rc->rc_attr);
|
|
}
|
|
|
|
/* end of rcons_subr.c */
|