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freebsd-dev/sys/pc98/cbus/scterm-sck.c
Ed Schouten b4b1c5169d Replace syscons terminal renderer by a new renderer that uses libteken. 
Some time ago I started working on a library called libteken, which is
terminal emulator. It does not buffer any screen contents, but only
keeps terminal state, such as cursor position, attributes, etc. It
should implement all escape sequences that are implemented by the
cons25 terminal emulator, but also a fair amount of sequences that are
present in VT100 and xterm.

A lot of random notes, which could be of interest to users/developers:

- Even though I'm leaving the terminal type set to `cons25', users can
  do experiments with placing `xterm-color' in /etc/ttys. Because we
  only implement a subset of features of xterm, this may cause
  artifacts. We should consider extending libteken, because in my
  opinion xterm is the way to go. Some missing features:

  - Keypad application mode (DECKPAM)
  - Character sets (SCS)

- libteken is filled with a fair amount of assertions, but unfortunately
  we cannot go into the debugger anymore if we fail them. I've done
  development of this library almost entirely in userspace. In
  sys/dev/syscons/teken there are two applications that can be helpful
  when debugging the code:

  - teken_demo: a terminal emulator that can be started from a regular
    xterm that emulates a terminal using libteken. This application can
    be very useful to debug any rendering issues.

  - teken_stress: a stress testing application that emulates random
    terminal output. libteken has literally survived multiple terabytes
    of random input.

- libteken also includes support for UTF-8, but unfortunately our input
  layer and font renderer don't support this. If users want to
  experiment with UTF-8 support, they can enable `TEKEN_UTF8' in
  teken.h. If you recompile your kernel or the teken_demo application,
  you can hold some nice experiments.

- I've left PC98 the way it is right now. The PC98 platform has a custom
  syscons renderer, which supports some form of localised input. Maybe
  we should port PC98 to libteken by the time syscons supports UTF-8?

- I've removed the `dumb' terminal emulator. It has been broken for
  years. It hasn't survived the `struct proc' -> `struct thread'
  conversion.

- To prevent confusion among people that want to hack on libteken:
  unlike syscons, the state machines that parse the escape sequences are
  machine generated. This means that if you want to add new escape
  sequences, you have to add an entry to the `sequences' file. This will
  cause new entries to be added to `teken_state.h'.

- Any rendering artifacts that didn't occur prior to this commit are by
  accident. They should be reported to me, so I can fix them.

Discussed on:	current@, hackers@
Discussed with:	philip (at 25C3)
2009-01-01 13:26:53 +00:00

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/*-
* Copyright (c) 1999 FreeBSD(98) Porting Team.
* All rights reserved.
*
* 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 as
* the first lines of this file unmodified.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
*
* $FreeBSD$
*/
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/consio.h>
#include <machine/pc/display.h>
#include <dev/syscons/syscons.h>
#include <pc98/cbus/sctermvar.h>
#define MAX_ESC_PAR 5
#ifdef KANJI
#define IS_KTYPE_ASCII_or_HANKAKU(A) (!((A) & 0xee))
#define IS_KTYPE_KANA(A) ((A) & 0x11)
#define KTYPE_MASK_CTRL(A) ((A) &= 0xF0)
#endif /* KANJI */
/* attribute flags */
typedef struct {
u_short fg; /* foreground color */
u_short bg; /* background color */
} color_t;
typedef struct {
int flags;
#define SCTERM_BUSY (1 << 0)
int esc;
int num_param;
int last_param;
int param[MAX_ESC_PAR];
int saved_xpos;
int saved_ypos;
#ifdef KANJI
u_char kanji_1st_char;
u_char kanji_type;
#define KTYPE_ASCII 0 /* ASCII */
#define KTYPE_KANA 1 /* HANKAKU */
#define KTYPE_JKANA 0x10 /* JIS HANKAKU */
#define KTYPE_7JIS 0x20 /* JIS */
#define KTYPE_SJIS 2 /* Shift JIS */
#define KTYPE_UJIS 4 /* UJIS */
#define KTYPE_SUKANA 3 /* Shift JIS or UJIS HANKAKU */
#define KTYPE_SUJIS 6 /* SHift JIS or UJIS */
#define KTYPE_KANIN 0x80 /* Kanji Invoke sequence */
#define KTYPE_ASCIN 0x40 /* ASCII Invoke sequence */
#endif /* KANJI */
int attr_mask; /* current logical attr mask */
#define NORMAL_ATTR 0x00
#define BLINK_ATTR 0x01
#define BOLD_ATTR 0x02
#define UNDERLINE_ATTR 0x04
#define REVERSE_ATTR 0x08
#define FG_CHANGED 0x10
#define BG_CHANGED 0x20
int cur_attr; /* current hardware attr word */
color_t cur_color; /* current hardware color */
color_t std_color; /* normal hardware color */
color_t rev_color; /* reverse hardware color */
color_t dflt_std_color; /* default normal color */
color_t dflt_rev_color; /* default reverse color */
} term_stat;
static sc_term_init_t scterm_init;
static sc_term_term_t scterm_term;
static sc_term_puts_t scterm_puts;
static sc_term_ioctl_t scterm_ioctl;
static sc_term_reset_t scterm_reset;
static sc_term_default_attr_t scterm_default_attr;
static sc_term_clear_t scterm_clear;
static sc_term_notify_t scterm_notify;
static sc_term_input_t scterm_input;
static sc_term_sw_t sc_term_sc = {
{ NULL, NULL },
"sck", /* emulator name */
"syscons kanji terminal", /* description */
"*", /* matching renderer, any :-) */
sizeof(term_stat), /* softc size */
0,
scterm_init,
scterm_term,
scterm_puts,
scterm_ioctl,
scterm_reset,
scterm_default_attr,
scterm_clear,
scterm_notify,
scterm_input,
};
SCTERM_MODULE(sc, sc_term_sc);
static term_stat reserved_term_stat;
static int default_kanji = UJIS;
static void scterm_scan_esc(scr_stat *scp, term_stat *tcp,
u_char c);
static int mask2attr(term_stat *tcp);
#ifdef KANJI
__inline static u_char
iskanji1(u_char mode, u_char c)
{
if (c > 0x80) {
if ((c >= 0xa1) && (c <= 0xdf)) {
if (default_kanji == UJIS) {
/* UJIS */
return KTYPE_UJIS;
}
if (default_kanji == SJIS) {
/* SJIS HANKAKU */
return KTYPE_KANA;
}
}
if (c <= 0x9f) {
if (c == 0x8e) {
/* SJIS or UJIS HANKAKU */
return KTYPE_SUKANA;
}
/* SJIS */
default_kanji = SJIS;
return KTYPE_SJIS;
}
if ((c >= 0xe0) && (c <= 0xef)) {
/* SJIS or UJIS */
return KTYPE_SUJIS;
}
if ((c >= 0xf0) && (c <= 0xfe)) {
/* UJIS */
default_kanji = UJIS;
return KTYPE_UJIS;
}
} else {
if ((mode == KTYPE_7JIS) && (c >= 0x21) && (c <= 0x7e)) {
/* JIS */
default_kanji = UJIS;
return KTYPE_7JIS;
}
if ((mode == KTYPE_JKANA) && (c >= 0x21) && (c <= 0x5f)) {
/* JIS HANKAKU */
default_kanji = UJIS;
return KTYPE_JKANA;
}
}
return KTYPE_ASCII;
}
__inline static u_char
iskanji2(u_char mode, u_char c)
{
switch (mode) {
case KTYPE_7JIS:
if ((c >= 0x21) && (c <= 0x7e)) {
/* JIS */
return KTYPE_7JIS;
}
break;
case KTYPE_SJIS:
if ((c >= 0x40) && (c <= 0xfc) && (c != 0x7f)) {
/* SJIS */
return KTYPE_SJIS;
}
break;
case KTYPE_UJIS:
if ((c >= 0xa1) && (c <= 0xfe)) {
/* UJIS */
return KTYPE_UJIS;
}
break;
case KTYPE_SUKANA:
if ((c >= 0xa1) && (c <= 0xdf) && (default_kanji == UJIS)) {
/* UJIS HANKAKU */
return KTYPE_KANA;
}
if ((c >= 0x40) && (c <= 0xfc) && (c != 0x7f)) {
/* SJIS */
default_kanji = SJIS;
return KTYPE_SJIS;
}
break;
case KTYPE_SUJIS:
if ((c >= 0x40) && (c <= 0xa0) && (c != 0x7f)) {
/* SJIS */
default_kanji = SJIS;
return KTYPE_SJIS;
}
if ((c == 0xfd) || (c == 0xfe)) {
/* UJIS */
default_kanji = UJIS;
return KTYPE_UJIS;
}
if ((c >= 0xa1) && (c <= 0xfc)) {
if (default_kanji == SJIS)
return KTYPE_SJIS;
if (default_kanji == UJIS)
return KTYPE_UJIS;
}
break;
}
return KTYPE_ASCII;
}
/*
* JIS X0208-83 keisen conversion table
*/
static u_short keiConv[32] = {
0x240c, 0x260c, 0x300c, 0x340c, 0x3c0c, 0x380c, 0x400c, 0x500c,
0x480c, 0x580c, 0x600c, 0x250c, 0x270c, 0x330c, 0x370c, 0x3f0c,
0x3b0c, 0x470c, 0x570c, 0x4f0c, 0x5f0c, 0x6f0c, 0x440c, 0x530c,
0x4c0c, 0x5b0c, 0x630c, 0x410c, 0x540c, 0x490c, 0x5c0c, 0x660c
};
static u_short
kanji_convert(u_char mode, u_char h, u_char l)
{
u_short tmp, high, low, c;
high = (u_short) h;
low = (u_short) l;
switch (mode) {
case KTYPE_SJIS: /* SHIFT JIS */
if (low >= 0xe0) {
low -= 0x40;
}
low = (low - 0x81) * 2 + 0x21;
if (high > 0x7f) {
high--;
}
if (high > 0x9d) {
low++;
high -= 0x9e - 0x21;
} else {
high -= 0x40 - 0x21;
}
high &= 0x7F;
low &= 0x7F;
tmp = ((high << 8) | low) - 0x20;
break;
case KTYPE_7JIS: /* JIS */
case KTYPE_UJIS: /* UJIS */
high &= 0x7F;
low &= 0x7F;
tmp = ((high << 8) | low) - 0x20;
break;
default:
tmp = 0;
break;
}
/* keisen */
c = ((tmp & 0xff) << 8) | (tmp >> 8);
/* 0x2821 .. 0x2840 */
if (0x0821 <= c && c <= 0x0840)
tmp = keiConv[c - 0x0821];
return (tmp);
}
#endif /* KANJI */
static int
scterm_init(scr_stat *scp, void **softc, int code)
{
term_stat *tcp;
if (*softc == NULL) {
if (reserved_term_stat.flags & SCTERM_BUSY)
return EINVAL;
*softc = &reserved_term_stat;
}
tcp = *softc;
switch (code) {
case SC_TE_COLD_INIT:
bzero(tcp, sizeof(*tcp));
tcp->flags = SCTERM_BUSY;
tcp->esc = 0;
tcp->saved_xpos = -1;
tcp->saved_ypos = -1;
#ifdef KANJI
tcp->kanji_1st_char = 0;
tcp->kanji_type = KTYPE_ASCII;
#endif
tcp->attr_mask = NORMAL_ATTR;
/* XXX */
tcp->dflt_std_color.fg = SC_NORM_ATTR & 0x0f;
tcp->dflt_std_color.bg = (SC_NORM_ATTR >> 4) & 0x0f;
tcp->dflt_rev_color.fg = SC_NORM_REV_ATTR & 0x0f;
tcp->dflt_rev_color.bg = (SC_NORM_REV_ATTR >> 4) & 0x0f;
tcp->std_color = tcp->dflt_std_color;
tcp->rev_color = tcp->dflt_rev_color;
tcp->cur_color = tcp->std_color;
tcp->cur_attr = mask2attr(tcp);
++sc_term_sc.te_refcount;
break;
case SC_TE_WARM_INIT:
tcp->esc = 0;
tcp->saved_xpos = -1;
tcp->saved_ypos = -1;
#if 0
tcp->std_color = tcp->dflt_std_color;
tcp->rev_color = tcp->dflt_rev_color;
#endif
tcp->cur_color = tcp->std_color;
tcp->cur_attr = mask2attr(tcp);
break;
}
return 0;
}
static int
scterm_term(scr_stat *scp, void **softc)
{
if (*softc == &reserved_term_stat) {
*softc = NULL;
bzero(&reserved_term_stat, sizeof(reserved_term_stat));
}
--sc_term_sc.te_refcount;
return 0;
}
static void
scterm_scan_esc(scr_stat *scp, term_stat *tcp, u_char c)
{
static u_char ansi_col[16] = {
FG_BLACK, FG_RED, FG_GREEN, FG_BROWN,
FG_BLUE, FG_MAGENTA, FG_CYAN, FG_LIGHTGREY,
FG_DARKGREY, FG_LIGHTRED, FG_LIGHTGREEN, FG_YELLOW,
FG_LIGHTBLUE, FG_LIGHTMAGENTA, FG_LIGHTCYAN, FG_WHITE
};
static int cattrs[] = {
0, /* block */
CONS_BLINK_CURSOR, /* blinking block */
CONS_CHAR_CURSOR, /* underline */
CONS_CHAR_CURSOR | CONS_BLINK_CURSOR, /* blinking underline */
CONS_RESET_CURSOR, /* reset to default */
CONS_HIDDEN_CURSOR, /* hide cursor */
};
static int tcattrs[] = {
CONS_RESET_CURSOR | CONS_LOCAL_CURSOR, /* normal */
CONS_HIDDEN_CURSOR | CONS_LOCAL_CURSOR, /* invisible */
CONS_BLINK_CURSOR | CONS_LOCAL_CURSOR, /* very visible */
};
sc_softc_t *sc;
int v0, v1, v2;
int i, n;
i = n = 0;
sc = scp->sc;
if (tcp->esc == 1) { /* seen ESC */
#ifdef KANJI
switch (tcp->kanji_type) {
case KTYPE_KANIN: /* Kanji Invoke sequence */
switch (c) {
case 'B':
case '@':
tcp->kanji_type = KTYPE_7JIS;
tcp->esc = 0;
tcp->kanji_1st_char = 0;
return;
default:
tcp->kanji_type = KTYPE_ASCII;
tcp->esc = 0;
break;
}
break;
case KTYPE_ASCIN: /* Ascii Invoke sequence */
switch (c) {
case 'J':
case 'B':
case 'H':
tcp->kanji_type = KTYPE_ASCII;
tcp->esc = 0;
tcp->kanji_1st_char = 0;
return;
case 'I':
tcp->kanji_type = KTYPE_JKANA;
tcp->esc = 0;
tcp->kanji_1st_char = 0;
return;
default:
tcp->kanji_type = KTYPE_ASCII;
tcp->esc = 0;
break;
}
break;
default:
break;
}
#endif
switch (c) {
case '7': /* Save cursor position */
tcp->saved_xpos = scp->xpos;
tcp->saved_ypos = scp->ypos;
break;
case '8': /* Restore saved cursor position */
if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
sc_move_cursor(scp, tcp->saved_xpos,
tcp->saved_ypos);
break;
case '[': /* Start ESC [ sequence */
tcp->esc = 2;
tcp->last_param = -1;
for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
tcp->param[i] = 1;
tcp->num_param = 0;
return;
#ifdef KANJI
case '$': /* Kanji Invoke sequence */
tcp->kanji_type = KTYPE_KANIN;
return;
#endif
case 'M': /* Move cursor up 1 line, scroll if at top */
sc_term_up_scroll(scp, 1, sc->scr_map[0x20],
tcp->cur_attr, 0, 0);
break;
#ifdef notyet
case 'Q':
tcp->esc = 4;
return;
#endif
case 'c': /* reset */
tcp->attr_mask = NORMAL_ATTR;
tcp->cur_color = tcp->std_color
= tcp->dflt_std_color;
tcp->rev_color = tcp->dflt_rev_color;
tcp->cur_attr = mask2attr(tcp);
sc_change_cursor_shape(scp,
CONS_RESET_CURSOR | CONS_LOCAL_CURSOR, -1, -1);
sc_clear_screen(scp);
break;
case '(': /* iso-2022: designate 94 character set to G0 */
#ifdef KANJI
tcp->kanji_type = KTYPE_ASCIN;
#else
tcp->esc = 5;
#endif
return;
}
} else if (tcp->esc == 2) { /* seen ESC [ */
if (c >= '0' && c <= '9') {
if (tcp->num_param < MAX_ESC_PAR) {
if (tcp->last_param != tcp->num_param) {
tcp->last_param = tcp->num_param;
tcp->param[tcp->num_param] = 0;
} else {
tcp->param[tcp->num_param] *= 10;
}
tcp->param[tcp->num_param] += c - '0';
return;
}
}
tcp->num_param = tcp->last_param + 1;
switch (c) {
case ';':
if (tcp->num_param < MAX_ESC_PAR)
return;
break;
case '=':
tcp->esc = 3;
tcp->last_param = -1;
for (i = tcp->num_param; i < MAX_ESC_PAR; i++)
tcp->param[i] = 1;
tcp->num_param = 0;
return;
case 'A': /* up n rows */
sc_term_up(scp, tcp->param[0], 0);
break;
case 'B': /* down n rows */
sc_term_down(scp, tcp->param[0], 0);
break;
case 'C': /* right n columns */
sc_term_right(scp, tcp->param[0]);
break;
case 'D': /* left n columns */
sc_term_left(scp, tcp->param[0]);
break;
case 'E': /* cursor to start of line n lines down */
n = tcp->param[0];
if (n < 1)
n = 1;
sc_move_cursor(scp, 0, scp->ypos + n);
break;
case 'F': /* cursor to start of line n lines up */
n = tcp->param[0];
if (n < 1)
n = 1;
sc_move_cursor(scp, 0, scp->ypos - n);
break;
case 'f': /* Cursor move */
case 'H':
if (tcp->num_param == 0)
sc_move_cursor(scp, 0, 0);
else if (tcp->num_param == 2)
sc_move_cursor(scp, tcp->param[1] - 1,
tcp->param[0] - 1);
break;
case 'J': /* Clear all or part of display */
if (tcp->num_param == 0)
n = 0;
else
n = tcp->param[0];
sc_term_clr_eos(scp, n, sc->scr_map[0x20],
tcp->cur_attr);
break;
case 'K': /* Clear all or part of line */
if (tcp->num_param == 0)
n = 0;
else
n = tcp->param[0];
sc_term_clr_eol(scp, n, sc->scr_map[0x20],
tcp->cur_attr);
break;
case 'L': /* Insert n lines */
sc_term_ins_line(scp, scp->ypos, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr, 0);
break;
case 'M': /* Delete n lines */
sc_term_del_line(scp, scp->ypos, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr, 0);
break;
case 'P': /* Delete n chars */
sc_term_del_char(scp, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr);
break;
case '@': /* Insert n chars */
sc_term_ins_char(scp, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr);
break;
case 'S': /* scroll up n lines */
sc_term_del_line(scp, 0, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr, 0);
break;
case 'T': /* scroll down n lines */
sc_term_ins_line(scp, 0, tcp->param[0],
sc->scr_map[0x20], tcp->cur_attr, 0);
break;
case 'X': /* erase n characters in line */
n = tcp->param[0];
if (n < 1)
n = 1;
if (n > scp->xsize - scp->xpos)
n = scp->xsize - scp->xpos;
sc_vtb_erase(&scp->vtb, scp->cursor_pos, n,
sc->scr_map[0x20], tcp->cur_attr);
mark_for_update(scp, scp->cursor_pos);
mark_for_update(scp, scp->cursor_pos + n - 1);
break;
case 'Z': /* move n tabs backwards */
sc_term_backtab(scp, tcp->param[0]);
break;
case '`': /* move cursor to column n */
sc_term_col(scp, tcp->param[0]);
break;
case 'a': /* move cursor n columns to the right */
sc_term_right(scp, tcp->param[0]);
break;
case 'd': /* move cursor to row n */
sc_term_row(scp, tcp->param[0]);
break;
case 'e': /* move cursor n rows down */
sc_term_down(scp, tcp->param[0], 0);
break;
case 'm': /* change attribute */
if (tcp->num_param == 0) {
tcp->attr_mask = NORMAL_ATTR;
tcp->cur_color = tcp->std_color;
tcp->cur_attr = mask2attr(tcp);
break;
}
for (i = 0; i < tcp->num_param; i++) {
switch (n = tcp->param[i]) {
case 0: /* back to normal */
tcp->attr_mask = NORMAL_ATTR;
tcp->cur_color = tcp->std_color;
tcp->cur_attr = mask2attr(tcp);
break;
case 1: /* bold */
tcp->attr_mask |= BOLD_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 4: /* underline */
tcp->attr_mask |= UNDERLINE_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 5: /* blink */
tcp->attr_mask |= BLINK_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 7: /* reverse */
tcp->attr_mask |= REVERSE_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 22: /* remove bold (or dim) */
tcp->attr_mask &= ~BOLD_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 24: /* remove underline */
tcp->attr_mask &= ~UNDERLINE_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 25: /* remove blink */
tcp->attr_mask &= ~BLINK_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 27: /* remove reverse */
tcp->attr_mask &= ~REVERSE_ATTR;
tcp->cur_attr = mask2attr(tcp);
break;
case 30: case 31: /* set ansi fg color */
case 32: case 33: case 34:
case 35: case 36: case 37:
tcp->attr_mask |= FG_CHANGED;
tcp->cur_color.fg = ansi_col[n - 30];
tcp->cur_attr = mask2attr(tcp);
break;
case 39: /* restore fg color back to normal */
tcp->attr_mask &= ~(FG_CHANGED|BOLD_ATTR);
tcp->cur_color.fg = tcp->std_color.fg;
tcp->cur_attr = mask2attr(tcp);
break;
case 40: case 41: /* set ansi bg color */
case 42: case 43: case 44:
case 45: case 46: case 47:
tcp->attr_mask |= BG_CHANGED;
tcp->cur_color.bg = ansi_col[n - 40];
tcp->cur_attr = mask2attr(tcp);
break;
case 49: /* restore bg color back to normal */
tcp->attr_mask &= ~BG_CHANGED;
tcp->cur_color.bg = tcp->std_color.bg;
tcp->cur_attr = mask2attr(tcp);
break;
}
}
break;
case 's': /* Save cursor position */
tcp->saved_xpos = scp->xpos;
tcp->saved_ypos = scp->ypos;
break;
case 'u': /* Restore saved cursor position */
if (tcp->saved_xpos >= 0 && tcp->saved_ypos >= 0)
sc_move_cursor(scp, tcp->saved_xpos,
tcp->saved_ypos);
break;
case 'x':
if (tcp->num_param == 0)
n = 0;
else
n = tcp->param[0];
switch (n) {
case 0: /* reset colors and attributes back to normal */
tcp->attr_mask = NORMAL_ATTR;
tcp->cur_color = tcp->std_color
= tcp->dflt_std_color;
tcp->rev_color = tcp->dflt_rev_color;
tcp->cur_attr = mask2attr(tcp);
break;
case 1: /* set ansi background */
tcp->attr_mask &= ~BG_CHANGED;
tcp->cur_color.bg = tcp->std_color.bg
= ansi_col[tcp->param[1] & 0x0f];
tcp->cur_attr = mask2attr(tcp);
break;
case 2: /* set ansi foreground */
tcp->attr_mask &= ~FG_CHANGED;
tcp->cur_color.fg = tcp->std_color.fg
= ansi_col[tcp->param[1] & 0x0f];
tcp->cur_attr = mask2attr(tcp);
break;
case 3: /* set adapter attribute directly */
tcp->attr_mask &= ~(FG_CHANGED | BG_CHANGED);
tcp->cur_color.fg = tcp->std_color.fg
= tcp->param[1] & 0x0f;
tcp->cur_color.bg = tcp->std_color.bg
= (tcp->param[1] >> 4) & 0x0f;
tcp->cur_attr = mask2attr(tcp);
break;
case 5: /* set ansi reverse background */
tcp->rev_color.bg = ansi_col[tcp->param[1] & 0x0f];
tcp->cur_attr = mask2attr(tcp);
break;
case 6: /* set ansi reverse foreground */
tcp->rev_color.fg = ansi_col[tcp->param[1] & 0x0f];
tcp->cur_attr = mask2attr(tcp);
break;
case 7: /* set adapter reverse attribute directly */
tcp->rev_color.fg = tcp->param[1] & 0x0f;
tcp->rev_color.bg = (tcp->param[1] >> 4) & 0x0f;
tcp->cur_attr = mask2attr(tcp);
break;
}
break;
case 'z': /* switch to (virtual) console n */
if (tcp->num_param == 1)
sc_switch_scr(sc, tcp->param[0]);
break;
}
} else if (tcp->esc == 3) { /* seen ESC [0-9]+ = */
if (c >= '0' && c <= '9') {
if (tcp->num_param < MAX_ESC_PAR) {
if (tcp->last_param != tcp->num_param) {
tcp->last_param = tcp->num_param;
tcp->param[tcp->num_param] = 0;
} else {
tcp->param[tcp->num_param] *= 10;
}
tcp->param[tcp->num_param] += c - '0';
return;
}
}
tcp->num_param = tcp->last_param + 1;
switch (c) {
case ';':
if (tcp->num_param < MAX_ESC_PAR)
return;
break;
case 'A': /* set display border color */
if (tcp->num_param == 1) {
scp->border=tcp->param[0] & 0xff;
if (scp == sc->cur_scp)
sc_set_border(scp, scp->border);
}
break;
case 'B': /* set bell pitch and duration */
if (tcp->num_param == 2) {
scp->bell_pitch = tcp->param[0];
scp->bell_duration =
(tcp->param[1] * hz + 99) / 100;
}
break;
case 'C': /* set global/parmanent cursor type & shape */
i = spltty();
n = tcp->num_param;
v0 = tcp->param[0];
v1 = tcp->param[1];
v2 = tcp->param[2];
switch (n) {
case 1: /* flags only */
if (v0 < sizeof(cattrs)/sizeof(cattrs[0]))
v0 = cattrs[v0];
else /* backward compatibility */
v0 = cattrs[v0 & 0x3];
sc_change_cursor_shape(scp, v0, -1, -1);
break;
case 2:
v2 = 0;
v0 &= 0x1f; /* backward compatibility */
v1 &= 0x1f;
/* FALL THROUGH */
case 3: /* base and height */
if (v2 == 0) /* count from top */
sc_change_cursor_shape(scp, -1,
scp->font_size - v1 - 1,
v1 - v0 + 1);
else if (v2 == 1) /* count from bottom */
sc_change_cursor_shape(scp, -1,
v0, v1 - v0 + 1);
break;
}
splx(i);
break;
case 'F': /* set adapter foreground */
if (tcp->num_param == 1) {
tcp->attr_mask &= ~FG_CHANGED;
tcp->cur_color.fg = tcp->std_color.fg
= tcp->param[0] & 0x0f;
tcp->cur_attr = mask2attr(tcp);
}
break;
case 'G': /* set adapter background */
if (tcp->num_param == 1) {
tcp->attr_mask &= ~BG_CHANGED;
tcp->cur_color.bg = tcp->std_color.bg
= tcp->param[0] & 0x0f;
tcp->cur_attr = mask2attr(tcp);
}
break;
case 'H': /* set adapter reverse foreground */
if (tcp->num_param == 1) {
tcp->rev_color.fg = tcp->param[0] & 0x0f;
tcp->cur_attr = mask2attr(tcp);
}
break;
case 'I': /* set adapter reverse background */
if (tcp->num_param == 1) {
tcp->rev_color.bg = tcp->param[0] & 0x0f;
tcp->cur_attr = mask2attr(tcp);
}
break;
case 'S': /* set local/temporary cursor type & shape */
i = spltty();
n = tcp->num_param;
v0 = tcp->param[0];
switch (n) {
case 0:
v0 = 0;
/* FALL THROUGH */
case 1:
if (v0 < sizeof(tcattrs)/sizeof(tcattrs[0]))
sc_change_cursor_shape(scp,
tcattrs[v0], -1, -1);
break;
}
splx(i);
break;
}
#ifdef notyet
} else if (tcp->esc == 4) { /* seen ESC Q */
/* to be filled */
#endif
} else if (tcp->esc == 5) { /* seen ESC ( */
switch (c) {
case 'B': /* iso-2022: desginate ASCII into G0 */
break;
/* other items to be filled */
default:
break;
}
}
tcp->esc = 0;
}
static void
scterm_puts(scr_stat *scp, u_char *buf, int len)
{
term_stat *tcp;
u_char *ptr;
#ifdef KANJI
u_short kanji_code;
#endif
tcp = scp->ts;
ptr = buf;
outloop:
scp->sc->write_in_progress++;
if (tcp->esc) {
scterm_scan_esc(scp, tcp, *ptr++);
len--;
} else if (PRINTABLE(*ptr)) { /* Print only printables */
vm_offset_t p;
u_char *map;
int attr;
int i;
int cnt;
#ifdef KANJI
u_char c;
#endif
p = sc_vtb_pointer(&scp->vtb, scp->cursor_pos);
map = scp->sc->scr_map;
attr = tcp->cur_attr;
#ifdef KANJI
c = *ptr;
if (tcp->kanji_1st_char == 0) {
tcp->kanji_type = iskanji1(tcp->kanji_type, c);
if (!IS_KTYPE_ASCII_or_HANKAKU(tcp->kanji_type)) {
/* not Ascii & not HANKAKU */
tcp->kanji_1st_char = c;
goto kanji_end;
} else if (tcp->kanji_type == KTYPE_ASCII) {
cnt = imin(len, scp->xsize - scp->xpos);
i = cnt;
do {
p = sc_vtb_putchar(&scp->vtb, p, map[c], attr);
c = *++ptr;
--i;
} while (i > 0 && PRINTABLE(c) &&
iskanji1(tcp->kanji_type, c) == KTYPE_ASCII);
len -= cnt - i;
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos += cnt - i;
mark_for_update(scp, scp->cursor_pos - 1);
scp->xpos += cnt - i;
KTYPE_MASK_CTRL(tcp->kanji_type);
goto ascii_end;
}
} else {
if ((tcp->kanji_type =
iskanji2(tcp->kanji_type, c)) & 0xee) {
/* print kanji on TEXT VRAM */
kanji_code = kanji_convert(tcp->kanji_type, c,
tcp->kanji_1st_char);
mark_for_update(scp, scp->cursor_pos);
for (i = 0; i < 2; i++) {
/* *cursor_pos = (kanji_code | (i*0x80)); */
p = sc_vtb_putchar(&scp->vtb, p,
kanji_code | ((i == 0) ? 0x00 : 0x80), attr);
++scp->cursor_pos;
if (++scp->xpos >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
}
}
mark_for_update(scp, scp->cursor_pos - 1);
KTYPE_MASK_CTRL(tcp->kanji_type);
tcp->kanji_1st_char = 0;
goto kanji_end;
} else {
tcp->kanji_1st_char = 0;
}
}
if (IS_KTYPE_KANA(tcp->kanji_type))
c |= 0x80;
KTYPE_MASK_CTRL(tcp->kanji_type);
sc_vtb_putchar(&scp->vtb, p, map[c], attr);
mark_for_update(scp, scp->cursor_pos);
mark_for_update(scp, scp->cursor_pos);
++scp->cursor_pos;
++scp->xpos;
kanji_end:
++ptr;
--len;
ascii_end:
#else /* !KANJI */
cnt = imin(len, scp->xsize - scp->xpos);
i = cnt;
do {
/*
* gcc-2.6.3 generates poor (un)sign extension code.
* Casting the pointers in the following to volatile should
* have no effect, but in fact speeds up this inner loop
* from 26 to 18 cycles (+ cache misses) on i486's.
*/
#define UCVP(ucp) ((u_char volatile *)(ucp))
p = sc_vtb_putchar(&scp->vtb, p, UCVP(map)[*UCVP(ptr)],
attr);
++ptr;
--i;
} while (i > 0 && PRINTABLE(*ptr));
len -= cnt - i;
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos += cnt - i;
mark_for_update(scp, scp->cursor_pos - 1);
scp->xpos += cnt - i;
#endif /* !KANJI */
if (scp->xpos >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
}
} else {
switch (*ptr) {
case 0x07:
sc_bell(scp, scp->bell_pitch, scp->bell_duration);
break;
case 0x08: /* non-destructive backspace */
if (scp->cursor_pos > 0) {
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos--;
mark_for_update(scp, scp->cursor_pos);
if (scp->xpos > 0)
scp->xpos--;
else {
scp->xpos += scp->xsize - 1;
scp->ypos--;
}
}
break;
case 0x09: /* non-destructive tab */
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos += (8 - scp->xpos % 8u);
scp->xpos += (8 - scp->xpos % 8u);
if (scp->xpos >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
scp->cursor_pos = scp->xsize * scp->ypos;
}
mark_for_update(scp, scp->cursor_pos);
break;
case 0x0a: /* newline, same pos */
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos += scp->xsize;
mark_for_update(scp, scp->cursor_pos);
scp->ypos++;
break;
case 0x0c: /* form feed, clears screen */
sc_clear_screen(scp);
break;
case 0x0d: /* return, return to pos 0 */
mark_for_update(scp, scp->cursor_pos);
scp->cursor_pos -= scp->xpos;
mark_for_update(scp, scp->cursor_pos);
scp->xpos = 0;
break;
case 0x0e: /* ^N */
tcp->kanji_type = KTYPE_JKANA;
tcp->esc = 0;
tcp->kanji_1st_char = 0;
break;
case 0x0f: /* ^O */
tcp->kanji_type = KTYPE_ASCII;
tcp->esc = 0;
tcp->kanji_1st_char = 0;
break;
case 0x1b: /* start escape sequence */
tcp->esc = 1;
tcp->num_param = 0;
break;
}
ptr++;
len--;
}
sc_term_gen_scroll(scp, scp->sc->scr_map[0x20], tcp->cur_attr);
scp->sc->write_in_progress--;
if (len)
goto outloop;
}
static int
scterm_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
struct thread *td)
{
term_stat *tcp = scp->ts;
vid_info_t *vi;
switch (cmd) {
case GIO_ATTR: /* get current attributes */
/* FIXME: */
*(int*)data = (tcp->cur_attr >> 8) & 0xff;
return 0;
case CONS_GETINFO: /* get current (virtual) console info */
vi = (vid_info_t *)data;
if (vi->size != sizeof(struct vid_info))
return EINVAL;
vi->mv_norm.fore = tcp->std_color.fg;
vi->mv_norm.back = tcp->std_color.bg;
vi->mv_rev.fore = tcp->rev_color.fg;
vi->mv_rev.back = tcp->rev_color.bg;
/*
* The other fields are filled by the upper routine. XXX
*/
return ENOIOCTL;
}
return ENOIOCTL;
}
static int
scterm_reset(scr_stat *scp, int code)
{
/* FIXME */
return 0;
}
static void
scterm_default_attr(scr_stat *scp, int color, int rev_color)
{
term_stat *tcp = scp->ts;
tcp->dflt_std_color.fg = color & 0x0f;
tcp->dflt_std_color.bg = (color >> 4) & 0x0f;
tcp->dflt_rev_color.fg = rev_color & 0x0f;
tcp->dflt_rev_color.bg = (rev_color >> 4) & 0x0f;
tcp->std_color = tcp->dflt_std_color;
tcp->rev_color = tcp->dflt_rev_color;
tcp->cur_color = tcp->std_color;
tcp->cur_attr = mask2attr(tcp);
}
static void
scterm_clear(scr_stat *scp)
{
term_stat *tcp = scp->ts;
sc_move_cursor(scp, 0, 0);
sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], tcp->cur_attr);
mark_all(scp);
}
static void
scterm_notify(scr_stat *scp, int event)
{
switch (event) {
case SC_TE_NOTIFY_VTSWITCH_IN:
break;
case SC_TE_NOTIFY_VTSWITCH_OUT:
break;
}
}
static int
scterm_input(scr_stat *scp, int c, struct tty *tp)
{
return FALSE;
}
/*
* Calculate hardware attributes word using logical attributes mask and
* hardware colors
*/
/* FIXME */
static int
mask2attr(term_stat *tcp)
{
int attr, mask = tcp->attr_mask;
if (mask & REVERSE_ATTR) {
attr = ((mask & FG_CHANGED) ?
tcp->cur_color.bg : tcp->rev_color.fg) |
(((mask & BG_CHANGED) ?
tcp->cur_color.fg : tcp->rev_color.bg) << 4);
} else
attr = tcp->cur_color.fg | (tcp->cur_color.bg << 4);
/* XXX: underline mapping for Hercules adapter can be better */
if (mask & (BOLD_ATTR | UNDERLINE_ATTR))
attr ^= 0x08;
if (mask & BLINK_ATTR)
attr ^= 0x80;
return (attr << 8);
}
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