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NetBSD/sys/dev/rcons/rcons_subr.c

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/* $NetBSD: rcons_subr.c,v 1.11 2002/07/04 14:37:12 junyoung Exp $ */
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)rcons_subr.c 8.1 (Berkeley) 6/11/93
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rcons_subr.c,v 1.11 2002/07/04 14:37:12 junyoung Exp $");
#include <sys/param.h>
#ifdef _KERNEL
#include <sys/device.h>
#include <sys/systm.h>
#else
#include "myfbdevice.h"
#endif
#include <dev/rcons/rcons.h>
#include <dev/wscons/wsdisplayvar.h>
extern void rcons_bell(struct rconsole *);
#if 0
#define RCONS_ISPRINT(c) ((((c) >= ' ') && ((c) <= '~')) || ((c) > 160))
#else
#define RCONS_ISPRINT(c) (((((c) >= ' ') && ((c) <= '~'))) || ((c) > 127))
#endif
#define RCONS_ISDIGIT(c) ((c) >= '0' && (c) <= '9')
/* Initialize our operations set */
void
rcons_init_ops(rc)
struct rconsole *rc;
{
long tmp;
int i, m;
m = sizeof(rc->rc_charmap) / sizeof(rc->rc_charmap[0]);
for (i = 0; i < m; i++)
rc->rc_ops->mapchar(rc->rc_cookie, i, rc->rc_charmap + i);
/* Determine which attributes the device supports. */
#ifdef RASTERCONSOLE_FGCOL
rc->rc_deffgcolor = RASTERCONSOLE_FGCOL;
#endif
#ifdef RASTERCONSOLE_BGCOL
rc->rc_defbgcolor = RASTERCONSOLE_BGCOL;
#endif
rc->rc_fgcolor = rc->rc_deffgcolor;
rc->rc_bgcolor = rc->rc_defbgcolor;
rc->rc_supwsflg = 0;
for (i = 1; i < 256; i <<= 1)
if (rc->rc_ops->allocattr(rc->rc_cookie, 0, 0, i, &tmp) == 0)
rc->rc_supwsflg |= i;
/* Allocate kernel output attribute */
rc->rc_wsflg = WSATTR_HILIT;
rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor);
rc->rc_kern_attr = rc->rc_attr;
rc->rc_wsflg = 0;
rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor);
rc->rc_defattr = rc->rc_attr;
}
/* Output (or at least handle) a string sent to the console */
void
rcons_puts(rc, str, n)
struct rconsole *rc;
unsigned char *str;
int n;
{
int c, i, j;
unsigned char *cp;
/* Jump scroll */
/* XXX maybe this should be an option? */
if ((rc->rc_bits & FB_INESC) == 0) {
/* Count newlines up to an escape sequence */
i = 0;
j = 0;
for (cp = str; j++ < n && *cp != '\033'; ++cp) {
if (*cp == '\n')
++i;
else if (*cp == '\013')
--i;
}
/* Only jump scroll two or more rows */
if (rc->rc_row + i > rc->rc_maxrow + 1) {
/* Erase the cursor (if necessary) */
if (rc->rc_bits & FB_CURSOR)
rcons_cursor(rc);
rcons_scroll(rc, i);
}
}
/* Process characters */
while (--n >= 0) {
c = *str;
if (c == '\033') {
/* Start an escape (perhaps aborting one in progress) */
rc->rc_bits |= FB_INESC | FB_P0_DEFAULT | FB_P1_DEFAULT;
rc->rc_bits &= ~(FB_P0 | FB_P1);
/* Most parameters default to 1 */
rc->rc_p0 = rc->rc_p1 = 1;
} else if (rc->rc_bits & FB_INESC) {
rcons_esc(rc, c);
} else {
/* Erase the cursor (if necessary) */
if (rc->rc_bits & FB_CURSOR)
rcons_cursor(rc);
/* Display the character */
if (RCONS_ISPRINT(c)) {
/* Try to output as much as possible */
j = rc->rc_maxcol - rc->rc_col;
if (j > n)
j = n;
for (i = 1; i < j && RCONS_ISPRINT(str[i]); ++i)
continue;
rcons_text(rc, str, i);
--i;
str += i;
n -= i;
} else
rcons_pctrl(rc, c);
}
++str;
}
/* Redraw the cursor (if necessary) */
if ((rc->rc_bits & FB_CURSOR) == 0)
rcons_cursor(rc);
}
/* Handle a control character sent to the console */
void
rcons_pctrl(rc, c)
struct rconsole *rc;
int c;
{
switch (c) {
case '\r': /* Carriage return */
rc->rc_col = 0;
break;
case '\b': /* Backspace */
if (rc->rc_col > 0)
(rc->rc_col)--;
break;
case '\v': /* Vertical tab */
if (rc->rc_row > 0)
(rc->rc_row)--;
break;
case '\f': /* Formfeed */
rc->rc_row = rc->rc_col = 0;
rcons_clear2eop(rc);
break;
case '\n': /* Linefeed */
(rc->rc_row)++;
if (rc->rc_row >= rc->rc_maxrow)
rcons_scroll(rc, 1);
break;
case '\a': /* Bell */
rcons_bell(rc);
break;
case '\t': /* Horizontal tab */
rc->rc_col = (rc->rc_col + 8) & ~7;
if (rc->rc_col >= rc->rc_maxcol)
rc->rc_col = rc->rc_maxcol;
break;
}
}
/* Handle the next character in an escape sequence */
void
rcons_esc(rc, c)
struct rconsole *rc;
int c;
{
if (c == '[') {
/* Parameter 0 */
rc->rc_bits &= ~FB_P1;
rc->rc_bits |= FB_P0;
} else if (c == ';') {
/* Parameter 1 */
rc->rc_bits &= ~FB_P0;
rc->rc_bits |= FB_P1;
} else if (RCONS_ISDIGIT(c)) {
/* Add a digit to a parameter */
if (rc->rc_bits & FB_P0) {
/* Parameter 0 */
if (rc->rc_bits & FB_P0_DEFAULT) {
rc->rc_bits &= ~FB_P0_DEFAULT;
rc->rc_p0 = 0;
}
rc->rc_p0 *= 10;
rc->rc_p0 += c - '0';
} else if (rc->rc_bits & FB_P1) {
/* Parameter 1 */
if (rc->rc_bits & FB_P1_DEFAULT) {
rc->rc_bits &= ~FB_P1_DEFAULT;
rc->rc_p1 = 0;
}
rc->rc_p1 *= 10;
rc->rc_p1 += c - '0';
}
} else {
/* Erase the cursor (if necessary) */
if (rc->rc_bits & FB_CURSOR)
rcons_cursor(rc);
/* Process the completed escape sequence */
rcons_doesc(rc, c);
rc->rc_bits &= ~FB_INESC;
}
}
/* Handle an SGR (Select Graphic Rendition) escape */
void
rcons_sgresc(rc, c)
struct rconsole *rc;
int c;
{
switch (c) {
/* Clear all attributes || End underline */
case 0:
rc->rc_wsflg = 0;
rc->rc_fgcolor = rc->rc_deffgcolor;
rc->rc_bgcolor = rc->rc_defbgcolor;
rc->rc_attr = rc->rc_defattr;
break;
/* ANSI foreground color */
case 30: case 31: case 32: case 33:
case 34: case 35: case 36: case 37:
rcons_setcolor(rc, c - 30, rc->rc_bgcolor);
break;
/* ANSI background color */
case 40: case 41: case 42: case 43:
case 44: case 45: case 46: case 47:
rcons_setcolor(rc, rc->rc_fgcolor, c - 40);
break;
/* Begin reverse */
case 7:
rc->rc_wsflg |= WSATTR_REVERSE;
rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
break;
/* Begin bold */
case 1:
rc->rc_wsflg |= WSATTR_HILIT;
rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
break;
/* Begin underline */
case 4:
rc->rc_wsflg |= WSATTR_UNDERLINE;
rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor);
break;
}
}
/* Process a complete escape sequence */
void
rcons_doesc(rc, c)
struct rconsole *rc;
int c;
{
#ifdef notdef
/* XXX add escape sequence to enable visual (and audible) bell */
rc->rc_bits = FB_VISBELL;
#endif
switch (c) {
case '@':
/* Insert Character (ICH) */
rcons_insertchar(rc, rc->rc_p0);
break;
case 'A':
/* Cursor Up (CUU) */
rc->rc_row -= rc->rc_p0;
if (rc->rc_row < 0)
rc->rc_row = 0;
break;
case 'B':
/* Cursor Down (CUD) */
rc->rc_row += rc->rc_p0;
if (rc->rc_row >= rc->rc_maxrow)
rc->rc_row = rc->rc_maxrow - 1;
break;
case 'C':
/* Cursor Forward (CUF) */
rc->rc_col += rc->rc_p0;
if (rc->rc_col >= rc->rc_maxcol)
rc->rc_col = rc->rc_maxcol - 1;
break;
case 'D':
/* Cursor Backward (CUB) */
rc->rc_col -= rc->rc_p0;
if (rc->rc_col < 0)
rc->rc_col = 0;
break;
case 'E':
/* Cursor Next Line (CNL) */
rc->rc_col = 0;
rc->rc_row += rc->rc_p0;
if (rc->rc_row >= rc->rc_maxrow)
rc->rc_row = rc->rc_maxrow - 1;
break;
case 'f':
/* Horizontal And Vertical Position (HVP) */
case 'H':
/* Cursor Position (CUP) */
rc->rc_col = rc->rc_p1 - 1;
if (rc->rc_col < 0)
rc->rc_col = 0;
else if (rc->rc_col >= rc->rc_maxcol)
rc->rc_col = rc->rc_maxcol - 1;
rc->rc_row = rc->rc_p0 - 1;
if (rc->rc_row < 0)
rc->rc_row = 0;
else if (rc->rc_row >= rc->rc_maxrow)
rc->rc_row = rc->rc_maxrow - 1;
break;
case 'J':
/* Erase in Display (ED) */
rcons_clear2eop(rc);
break;
case 'K':
/* Erase in Line (EL) */
rcons_clear2eol(rc);
break;
case 'L':
/* Insert Line (IL) */
rcons_insertline(rc, rc->rc_p0);
break;
case 'M':
/* Delete Line (DL) */
rcons_delline(rc, rc->rc_p0);
break;
case 'P':
/* Delete Character (DCH) */
rcons_delchar(rc, rc->rc_p0);
break;
case 'm':
/* Select Graphic Rendition (SGR) */
/* (defaults to zero) */
if (rc->rc_bits & FB_P0_DEFAULT)
rc->rc_p0 = 0;
if (rc->rc_bits & FB_P1_DEFAULT)
rc->rc_p1 = 0;
rcons_sgresc(rc, rc->rc_p0);
if (rc->rc_bits & FB_P1)
rcons_sgresc(rc, rc->rc_p1);
break;
/*
* XXX: setting SUNBOW and SUNWOB should probably affect
* deffgcolor, defbgcolor and defattr too.
*/
case 'p':
/* Black On White (SUNBOW) */
rcons_setcolor(rc, WSCOL_BLACK, WSCOL_WHITE);
break;
case 'q':
/* White On Black (SUNWOB) */
rcons_setcolor(rc, WSCOL_WHITE, WSCOL_BLACK);
break;
case 'r':
/* Set scrolling (SUNSCRL) */
/* (defaults to zero) */
if (rc->rc_bits & FB_P0_DEFAULT)
rc->rc_p0 = 0;
/* XXX not implemented yet */
rc->rc_scroll = rc->rc_p0;
break;
case 's':
/* Reset terminal emulator (SUNRESET) */
rc->rc_wsflg = 0;
rc->rc_scroll = 0;
rc->rc_bits &= ~FB_NO_CURSOR;
rc->rc_fgcolor = rc->rc_deffgcolor;
rc->rc_bgcolor = rc->rc_defbgcolor;
rc->rc_attr = rc->rc_defattr;
if (rc->rc_bits & FB_INVERT)
rcons_invert(rc, 0);
break;
#ifdef notyet
/*
* XXX following two read \E[?25h and \E[?25l. rcons
* can't currently handle the '?'.
*/
case 'h':
/* Normal/very visible cursor */
if (rc->rc_p0 == 25) {
rc->rc_bits &= ~FB_NO_CURSOR;
if (rc->rc_bits & FB_CURSOR) {
rc->rc_bits ^= FB_CURSOR;
rcons_cursor(rc);
}
}
break;
case 'l':
/* Invisible cursor */
if (rc->rc_p0 == 25 && (rc->rc_bits & FB_NO_CURSOR) == 0) {
if (rc->rc_bits & FB_CURSOR)
rcons_cursor(rc);
rc->rc_bits |= FB_NO_CURSOR;
}
break;
#endif
}
}
/* Set ANSI colors */
void
rcons_setcolor(rc, fg, bg)
struct rconsole *rc;
int fg, bg;
{
int flg;
if (fg > WSCOL_WHITE || fg < 0)
return;
if (bg > WSCOL_WHITE || bg < 0)
return;
#ifdef RASTERCONS_WONB
flg = bg;
bg = fg;
fg = flg;
#endif
/* Emulate WSATTR_REVERSE attribute if it's not supported */
if ((rc->rc_wsflg & WSATTR_REVERSE) &&
!(rc->rc_supwsflg & WSATTR_REVERSE)) {
flg = bg;
bg = fg;
fg = flg;
}
/*
* Mask out unsupported flags and get attribute
* XXX - always ask for WSCOLORS if supported (why shouldn't we?)
*/
flg = (rc->rc_wsflg | WSATTR_WSCOLORS) & rc->rc_supwsflg;
rc->rc_bgcolor = bg;
rc->rc_fgcolor = fg;
rc->rc_ops->allocattr(rc->rc_cookie, fg, bg, flg, &rc->rc_attr);
}
/* Actually write a string to the frame buffer */
void
rcons_text(rc, str, n)
struct rconsole *rc;
unsigned char *str;
int n;
{
u_int uc;
while (n--) {
uc = rc->rc_charmap[*str++ & 255];
rc->rc_ops->putchar(rc->rc_cookie, rc->rc_row, rc->rc_col++,
uc, rc->rc_attr);
}
if (rc->rc_col >= rc->rc_maxcol) {
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(rc)
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(rc, wob)
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(rc)
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(rc)
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(rc, n)
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 */
rc->rc_row -= n;
if (rc->rc_row < 0)
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(rc, n)
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(rc, n)
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(rc, n)
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(rc, n)
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 */
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