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Added necessary files for syscons (may move font include later, but for now
[unix-history] / sys / i386 / isa / syscons.c
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz and Don Ahn.
*
* 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.
*
*/
/*
* Heavily modified by Søren Schmidt (sos@kmd-ac.dk) to provide:
*
* virtual consoles, SYSV ioctl's, ANSI emulation
*
* @(#)syscons.c 0.2 930402
*
* Modified further to provide full (updated) pccons emulation and
* hooks for init_main.c. Jordan Hubbard, 930725
*
*/
#include "param.h"
#include "conf.h"
#include "ioctl.h"
#include "proc.h"
#include "user.h"
#include "tty.h"
#include "uio.h"
#include "callout.h"
#include "systm.h"
#include "kernel.h"
#include "syslog.h"
#include "errno.h"
#include "console.h"
#include "malloc.h"
#include "i386/isa/icu.h"
#include "i386/isa/isa.h"
#include "i386/isa/isa_device.h"
#include "i386/include/pc/display.h"
#include "i386/i386/cons.h"
#include "machine/psl.h"
#include "machine/frame.h"
#include "sc.h"
#include "ddb.h"
#include "iso8859.font"
#include "kbdtables.h"
/*#include "asm.h"*/
#if NSC > 0
#ifndef NCONS
#define NCONS 12
#endif
/* status flags */
#define LOCK_KEY_MASK 0x00007
#define UNKNOWN_MODE 0x00010
#define KBD_RAW_MODE 0x00020
#define SWITCH_WAIT_REL 0x00040
#define SWITCH_WAIT_ACQ 0x00080
/* virtual video memory addresses */
#define MONO_BUF 0xFE0B0000
#define CGA_BUF 0xFE0B8000
#define VGA_BUF 0xFE0A0000
#define VIDEOMEM 0x000A0000
/* misc defines */
#define MAX_ESC_PAR 2
#define TEXT80x25 1
#define TEXT80x50 2
#define COL 80
#define ROW 25
#ifndef XTALSPEED
#define XTALSPEED 1193182 /* should be in isa.h */
#endif
/* defines related to hardware addresses */
#define MONO_BASE 0x3B4 /* crt controller base mono */
#define COLOR_BASE 0x3D4 /* crt controller base color */
#define ATC 0x3C0 /* attribute controller */
#define TSIDX 0x3C4 /* timing sequencer idx */
#define TSREG 0x3C5 /* timing sequencer data */
#define PIXMASK 0x3C6 /* pixel write mask */
#define PALRADR 0x3C7 /* palette read address */
#define PALWADR 0x3C8 /* palette write address */
#define PALDATA 0x3C9 /* palette data register */
#define GDCIDX 0x3CE /* graph data controller idx */
#define GDCREG 0x3CF /* graph data controller data */
typedef struct scr_stat {
u_short *crt_base; /* address of screen memory */
u_short *scr; /* buffer when off screen */
u_short *crtat; /* cursor address */
int esc; /* processing escape sequence */
int n_par; /* # of parameters to ESC */
int last_par; /* last parameter # */
int par[MAX_ESC_PAR]; /* contains ESC parameters */
int posx; /* current X position */
int posy; /* current Y position */
int max_posx; /* X size */
int max_posy; /* X size */
int attr; /* current attributes */
int std_attr; /* normal attributes */
int rev_attr; /* reverse attributes */
u_char border; /* border color */
u_short bell_duration;
u_short bell_pitch;
u_short status; /* status (bitfield) */
u_short mode; /* mode */
pid_t pid; /* pid of controlling proc */
struct proc *proc; /* proc* of controlling proc */
struct vt_mode smode; /* switch mode */
} scr_stat;
static scr_stat cons_scr_stat[NCONS];
static scr_stat *cur_scr_stat = &cons_scr_stat[0];
static scr_stat *new_scp, *old_scp;
static int switch_in_progress = 0;
u_short *Crtat = (u_short *)MONO_BUF;
static u_short *crtat = 0;
static u_int crtc_addr = MONO_BASE;
static u_char shfts = 0, ctls = 0, alts = 0;
static char palette[3*256];
static const u_int n_fkey_tab = sizeof(fkey_tab) / sizeof(*fkey_tab);
static int cur_cursor_pos = -1;
static char in_putc, nx_scr;
static char saved_console = -1; /* saved console number */
static long blank_time = 0; /* screen saver timout value */
static scrmap_t scr_map;
struct tty pccons[NCONS];
struct tty *cur_pccons = &pccons[0];
struct tty *new_pccons;
extern int hz;
extern struct timeval time;
#define CSF_ACTIVE 0x1 /* timeout active */
#define CSF_POLLING 0x2 /* polling for input */
struct pcconsoftc {
char cs_flags;
char cs_lastc; /* last char sent */
int cs_timo; /* timeouts since interrupt */
u_long cs_wedgecnt; /* times restarted */
} pcconsoftc = {0, 0, 0, 0};
/* special characters */
#define bs 8
#define lf 10
#define cr 13
#define cntlc 3
#define del 0177
#define cntld 4
/* function prototypes */
int pcprobe(struct isa_device *dev);
int pcattach(struct isa_device *dev);
int pcopen(dev_t dev, int flag, int mode, struct proc *p);
int pcclose(dev_t dev, int flag, int mode, struct proc *p);
int pcread(dev_t dev, struct uio *uio, int flag);
int pcwrite(dev_t dev, struct uio *uio, int flag);
int pcparam(struct tty *tp, struct termios *t);
int pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p);
int pcxint(dev_t dev);
int pcstart(struct tty *tp);
int pccnprobe(struct consdev *cp);
int pccninit(struct consdev *cp);
int pccnputc(dev_t dev, char c);
int pccngetc(dev_t dev);
int scintr(dev_t dev, int irq, int cpl);
void scrn_saver(int test);
static struct tty *get_pccons(dev_t dev);
static scr_stat *get_scr_stat(dev_t dev);
static int get_scr_num(scr_stat *scp);
static void cursor_shape(int start, int end);
static void cursor_pos(void);
static void clear_screen(scr_stat *scp);
static switch_scr(u_int next_scr);
static void exchange_scr(void);
static void move_crsr(scr_stat *scp, u_int x, u_int y);
static void move_up(u_short *s, u_short *d, u_int len);
static void move_down(u_short *s, u_short *d, u_int len);
static void scan_esc(scr_stat *scp, u_char c);
static void ansi_put(scr_stat *scp, u_char c);
void consinit(void);
static void sput(u_char c, u_char ca);
static u_char *get_fstr(u_int c, u_int *len);
static update_leds(int which);
void reset_cpu(void);
u_int sgetc(int noblock);
int pcmmap(dev_t dev, int offset, int nprot);
int getchar(void);
static void kbd_wait(void);
static void kbd_cmd(u_char command);
static void set_mode(scr_stat *scp);
static void set_border(int color);
static load_font(int segment, int size, char* font);
static void save_palette(void);
static void load_palette(void);
static change_winsize(struct tty *tp, int x, int y);
struct isa_driver scdriver = {
pcprobe, pcattach, "sc",
};
int pcprobe(struct isa_device *dev)
{
u_char c;
int i, again = 0;
/* Enable interrupts and keyboard controller */
kbd_wait();
outb(KB_STAT, KB_WRITE);
kbd_cmd(0x4D);
/* Start keyboard stuff RESET */
kbd_cmd(KB_RESET);
while ((c=inb(KB_DATA)) != KB_ACK) {
if ((c == 0xFE) || (c == 0xFF)) {
if (!again)
printf("KEYBOARD disconnected: RECONNECT \n");
kbd_cmd(KB_RESET);
again = 1;
}
}
/*
* pick up keyboard reset return code SOS
* some keyboards / controllers hangs if this is enabled
*/
/* while ((c=inb(KB_DATA))!=0xAA); */
return 1;
}
int pcattach(struct isa_device *dev)
{
scr_stat *scp;
int i;
if (crtc_addr == MONO_BASE)
printf("VGA mono");
else
printf("VGA color");
if (NCONS > 1)
printf(" <%d virtual consoles>\n", NCONS);
else
printf("\n");
save_palette();
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
for (i = 0; i < NCONS; i++) {
scp = &cons_scr_stat[i];
scp->mode = TEXT80x25;
scp->scr = (u_short *)malloc(COL * ROW * 2, M_DEVBUF, M_NOWAIT);
scp->std_attr = (FG_LIGHTGREY | BG_BLACK) << 8;
scp->rev_attr = (FG_BLACK | BG_LIGHTGREY) << 8;
scp->attr = scp->std_attr;
scp->border = BG_BLACK;
scp->esc = 0;
scp->max_posx = COL;
scp->max_posy = ROW;
scp->bell_pitch = 800;
scp->bell_duration = 10;
scp->status = 0;
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
if (i > 0) {
scp->crt_base = scp->crtat = scp->scr;
fillw(scp->attr | ' ', scp->scr, COL * ROW);
}
}
cursor_pos();
}
static struct tty *get_pccons(dev_t dev)
{
int i = minor(dev);
if (i >= NCONS)
return(NULL);
return(&pccons[i]);
}
static scr_stat *get_scr_stat(dev_t dev)
{
int i = minor(dev);
if (i >= NCONS)
return(NULL);
return(&cons_scr_stat[i]);
}
static int get_scr_num(scr_stat *scp) /* allways call with legal scp !! */
{
int i = 0;
while ((i < NCONS) && (cur_scr_stat != &cons_scr_stat[i])) i++;
return i;
}
pcopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = get_pccons(dev);
if (!tp)
return(ENXIO);
tp->t_oproc = pcstart;
tp->t_param = pcparam;
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_WOPEN;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
pcparam(tp, &tp->t_termios);
ttsetwater(tp);
} else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0)
return(EBUSY);
tp->t_state |= TS_CARR_ON;
return((*linesw[tp->t_line].l_open)(dev, tp));
}
pcclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = get_pccons(dev);
struct scr_stat *scp;
if (!tp)
return(ENXIO);
scp = get_scr_stat(tp->t_dev);
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
return(0);
}
pcread(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = get_pccons(dev);
if (!tp)
return(ENXIO);
return((*linesw[tp->t_line].l_read)(tp, uio, flag));
}
pcwrite(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = get_pccons(dev);
if (!tp)
return(ENXIO);
return((*linesw[tp->t_line].l_write)(tp, uio, flag));
}
/*
* Got a console interrupt, keyboard action !
* Catch the character, and see who it goes to.
*/
scintr(dev_t dev, int irq, int cpl)
{
int c, len;
u_char *cp;
scrn_saver(0);
c = sgetc(1);
if (c & 0x100)
return;
if (pcconsoftc.cs_flags & CSF_POLLING)
return;
if (c < 0x100)
(*linesw[cur_pccons->t_line].l_rint)(c & 0xFF, cur_pccons);
else if (cp = get_fstr((u_int)c, (u_int *)&len)) {
while (len-- > 0)
(*linesw[cur_pccons->t_line].l_rint)
(*cp++ & 0xFF, cur_pccons);
}
}
/*
* Set line parameters
*/
pcparam(struct tty *tp, struct termios *t)
{
int cflag = t->c_cflag;
/* and copy to tty */
tp->t_ispeed = t->c_ispeed;
tp->t_ospeed = t->c_ospeed;
tp->t_cflag = cflag;
return(0);
}
pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
{
int i, error;
struct tty *tp;
struct syscframe *fp;
scr_stat *scp;
tp = get_pccons(dev);
if (!tp)
return(ENXIO);
scp = get_scr_stat(tp->t_dev);
switch (cmd) { /* process console hardware related ioctl's */
case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */
blank_time = *(int*)data;
return 0;
case CONS_80x25TEXT: /* set 80x25 text mode */
scp->mode = TEXT80x25;
scp->max_posy = 25;
set_mode(scp);
clear_screen(scp);
change_winsize(tp, scp->max_posx, scp->max_posy);
free(scp->scr, M_DEVBUF);
scp->scr = (u_short *)malloc(scp->max_posx*scp->max_posy*2,
M_DEVBUF, M_NOWAIT);
return 0;
case CONS_80x50TEXT: /* set 80x50 text mode */
scp->mode = TEXT80x50;
scp->max_posy = 50;
set_mode(scp);
clear_screen(scp);
change_winsize(tp, scp->max_posx, scp->max_posy);
free(scp->scr, M_DEVBUF);
scp->scr = (u_short *)malloc(scp->max_posx*scp->max_posy*2,
M_DEVBUF, M_NOWAIT);
return 0;
case CONS_GETINFO: /* get current (virtual) console info */
if (*data == sizeof(struct vid_info)) {
vid_info_t *ptr = (vid_info_t*)data;
ptr->m_num = get_scr_num(scp);
ptr->mv_col = scp->posx;
ptr->mv_row = scp->posy;
ptr->mv_csz = scp->max_posx;
ptr->mv_rsz = scp->max_posy;
ptr->mv_norm.fore = (scp->std_attr & 0x0f00)>>8;
ptr->mv_norm.back = (scp->std_attr & 0xf000)>>12;
ptr->mv_rev.fore = (scp->rev_attr & 0x0f00)>>8;
ptr->mv_rev.back = (scp->rev_attr & 0xf000)>>12;
ptr->mv_grfc.fore = 0; /* not supported */
ptr->mv_grfc.back = 0; /* not supported */
ptr->mv_ovscan = scp->border;
ptr->mk_keylock = scp->status & LOCK_KEY_MASK;
return 0;
}
return EINVAL;
case VT_SETMODE: /* set screen switcher mode */
bcopy(data, &scp->smode, sizeof(struct vt_mode));
if (scp->smode.mode == VT_PROCESS) {
scp->proc = p;
scp->pid = scp->proc->p_pid;
}
return 0;
case VT_GETMODE: /* get screen switcher mode */
bcopy(&scp->smode, data, sizeof(struct vt_mode));
return 0;
case VT_RELDISP: /* screen switcher ioctl */
switch(*data) {
case VT_FALSE: /* user refuses to release screen, abort */
if (scp == old_scp && (scp->status & SWITCH_WAIT_REL)) {
old_scp->status &= ~SWITCH_WAIT_REL;
switch_in_progress = 0;
return 0;
}
return EINVAL;
case VT_TRUE: /* user has released screen, go on */
if (scp == old_scp && (scp->status & SWITCH_WAIT_REL)) {
scp->status &= ~SWITCH_WAIT_REL;
exchange_scr();
if (new_scp->smode.mode == VT_PROCESS) {
new_scp->status |= SWITCH_WAIT_ACQ;
psignal(new_scp->proc,
new_scp->smode.acqsig);
}
else
switch_in_progress = 0;
return 0;
}
return EINVAL;
case VT_ACKACQ: /* acquire acknowledged, switch completed */
if (scp == new_scp && (scp->status & SWITCH_WAIT_ACQ)) {
scp->status &= ~SWITCH_WAIT_ACQ;
switch_in_progress = 0;
return 0;
}
return EINVAL;
default:
return EINVAL;
}
/* NOT REACHED */
case VT_OPENQRY: /* return free virtual cons, allways current */
*data = get_scr_num(scp);
return 0;
case VT_ACTIVATE: /* switch to screen *data */
return switch_scr((*data) - 1);
case VT_WAITACTIVE: /* wait for switch to occur */
if (*data > NCONS)
return EINVAL;
if (minor(dev) == (*data) - 1)
return 0;
if (*data == 0) {
if (scp == cur_scr_stat)
return 0;
while ((error=tsleep(&scp->smode,
PZERO|PCATCH, "waitvt", 0))
== ERESTART) ;
}
else
while ((error=tsleep(&cons_scr_stat[*data].smode,
PZERO|PCATCH, "waitvt", 0))
== ERESTART) ;
return error;
case KDENABIO: /* allow io operations */
fp = (struct syscframe *)p->p_regs;
fp->sf_eflags |= PSL_IOPL;
return 0;
case KDDISABIO: /* disallow io operations (default) */
fp = (struct syscframe *)p->p_regs;
fp->sf_eflags &= ~PSL_IOPL;
return 0;
case KDSETMODE: /* set current mode of this (virtual) console */
switch (*data) {
case KD_TEXT: /* switch to TEXT (known) mode */
/* restore fonts & palette ! */
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
load_palette();
/* FALL THROUGH */
case KD_TEXT1: /* switch to TEXT (known) mode */
/* no restore fonts & palette */
scp->status &= ~UNKNOWN_MODE;
set_mode(scp);
clear_screen(scp);
return 0;
case KD_GRAPHICS:/* switch to GRAPHICS (unknown) mode */
scp->status |= UNKNOWN_MODE;
return 0;
default:
return EINVAL;
}
/* NOT REACHED */
case KDGETMODE: /* get current mode of this (virtual) console */
*data = (scp->status & UNKNOWN_MODE) ? KD_GRAPHICS : KD_TEXT;
return 0;
case KDSBORDER: /* set border color of this (virtual) console */
scp->border = *data;
if (scp == cur_scr_stat)
set_border(scp->border);
return 0;
case KDSKBSTATE: /* set keyboard state (locks) */
if (*data >= 0 && *data < 4) {
scp->status &= ~LOCK_KEY_MASK;
scp->status |= *data;
if (scp == cur_scr_stat)
update_leds(scp->status & LOCK_KEY_MASK);
return 0;
}
return EINVAL;
case KDGKBSTATE: /* get keyboard state (locks) */
*data = scp->status & LOCK_KEY_MASK;
return 0;
case KDSETRAD: /* set keyboard repeat & delay rates */
if (*(u_char*)data < 0x80) {
kbd_cmd(KB_SETRAD);
kbd_cmd(*data & 0x7f);
return 0;
}
return EINVAL;
case KDSKBMODE: /* set keyboard mode */
switch (*data) {
case K_RAW: /* switch to RAW scancode mode */
scp->status |= KBD_RAW_MODE;
return 0;
case K_XLATE: /* switch to XLT ascii mode */
scp->status &= ~KBD_RAW_MODE;
return 0;
default:
return EINVAL;
}
/* NOT REACHED */
case KDGKBMODE: /* get keyboard mode */
*data = (scp->status & KBD_RAW_MODE) ? K_RAW : K_XLATE;
return 0;
case KDMKTONE: /* sound the bell */
if (scp == cur_scr_stat)
sysbeep(scp->bell_pitch, scp->bell_duration);
return 0;
case KIOCSOUND: /* make tone (*data) hz */
if (scp == cur_scr_stat) {
if (*(int*)data) {
int pitch = XTALSPEED/(*(int*)data);
/* enable counter 2 */
outb(0x61, inb(0x61) | 3);
/* set command for counter 2, 2 byte write */
outb(0x43, 0xb6);
/* set pitch */
outb(0x42, pitch);
outb(0x42, (pitch>>8));
}
else {
/* disable counter 2 */
outb(0x61, inb(0x61) & 0xFC);
}
}
return 0;
case KDGKBTYPE: /* get keyboard type */
*data = 0; /* type not known (yet) */
return 0;
case KDSETLED: /* set keyboard LED status */
scp->status &= ~LOCK_KEY_MASK;
scp->status |= (*data & LOCK_KEY_MASK);
if (scp == cur_scr_stat)
update_leds(scp->status & LOCK_KEY_MASK);
return 0;
case KDGETLED: /* get keyboard LED status */
*data = scp->status & LOCK_KEY_MASK;
return 0;
case GETFKEY: /* get functionkey string */
if (*(u_short*)data < n_fkey_tab) {
fkeyarg_t *ptr = (fkeyarg_t*)data;
bcopy(&fkey_tab[ptr->keynum].str,
ptr->keydef,
fkey_tab[ptr->keynum].len);
ptr->flen = fkey_tab[ptr->keynum].len;
return 0;
}
else
return EINVAL;
case SETFKEY: /* set functionkey string */
if (*(u_short*)data < n_fkey_tab) {
fkeyarg_t *ptr = (fkeyarg_t*)data;
bcopy(ptr->keydef,
&fkey_tab[ptr->keynum].str,
min(ptr->flen, MAXFK));
fkey_tab[ptr->keynum].len = min(ptr->flen, MAXFK);
return 0;
}
else
return EINVAL;
case GIO_SCRNMAP: /* get output translation table */
bcopy(&scr_map, data, sizeof(scrmap_t));
return 0;
case PIO_SCRNMAP: /* set output translation table */
bcopy(data, &scr_map, sizeof(scrmap_t));
return 0;
case GIO_KEYMAP: /* get keyboard translation table */
bcopy(&key_map, data, sizeof(key_map));
return 0;
case PIO_KEYMAP: /* set keyboard translation table */
bcopy(data, &key_map, sizeof(key_map));
return 0;
case PIO_FONT8x8: /* set 8x8 dot font */
bcopy(data, &font_8x8, sizeof(fnt8_t));
load_font(1, 8, font_8x16);
return 0;
case GIO_FONT8x8: /* get 8x8 dot font */
bcopy(&font_8x8, data, sizeof(fnt8_t));
return 0;
case PIO_FONT8x14: /* set 8x14 dot font */
bcopy(data, &font_8x14, sizeof(fnt14_t));
load_font(2, 14, font_8x14);
return 0;
case GIO_FONT8x14: /* get 8x14 dot font */
bcopy(&font_8x14, data, sizeof(fnt14_t));
return 0;
case PIO_FONT8x16: /* set 8x16 dot font */
bcopy(data, &font_8x16, sizeof(fnt16_t));
load_font(0, 16, font_8x16);
return 0;
case GIO_FONT8x16: /* get 8x16 dot font */
bcopy(&font_8x16, data, sizeof(fnt16_t));
return 0;
case CONSOLE_X_MODE_ON: /* just to be compatible */
if (saved_console < 0) {
saved_console = get_scr_num(cur_scr_stat);
switch_scr(minor(dev));
fp = (struct syscframe *)p->p_regs;
fp->sf_eflags |= PSL_IOPL;
scp->status |= UNKNOWN_MODE;
scp->status |= KBD_RAW_MODE;
return 0;
}
return EAGAIN;
case CONSOLE_X_MODE_OFF:/* just to be compatible */
fp = (struct syscframe *)p->p_regs;
fp->sf_eflags &= ~PSL_IOPL;
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
scp->status &= ~UNKNOWN_MODE;
set_mode(scp);
clear_screen(scp);
scp->status &= ~KBD_RAW_MODE;
switch_scr(saved_console);
saved_console = -1;
return 0;
case CONSOLE_X_BELL:
/*
* if set, data is a pointer to a length 2 array of
* integers. data[0] is the pitch in Hz and data[1]
* is the duration in msec.
*/
if (data)
sysbeep(1187500/ ((int*)data)[0],
((int*)data)[1] * hz/ 3000);
else
sysbeep(0x31b, hz/4);
return 0;
default:
break;
}
error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag);
if (error >= 0)
return(error);
error = ttioctl(tp, cmd, data, flag);
if (error >= 0)
return(error);
return(ENOTTY);
}
pcxint(dev_t dev)
{
pccons[minor(dev)].t_state &= ~TS_BUSY;
pcconsoftc.cs_timo = 0;
if (pccons[minor(dev)].t_line)
(*linesw[pccons[minor(dev)].t_line].l_start)
(&pccons[minor(dev)]);
else
pcstart(&pccons[minor(dev)]);
}
pcstart(struct tty *tp)
{
int c, s;
scr_stat *scp = get_scr_stat(tp->t_dev);
s = spltty();
if (!(tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)))
for (;;) {
if (RB_LEN(&tp->t_out) <= tp->t_lowat) {
if (tp->t_state & TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup((caddr_t)&tp->t_out);
}
if (tp->t_wsel) {
selwakeup(tp->t_wsel,
tp->t_state & TS_WCOLL);
tp->t_wsel = 0;
tp->t_state &= ~TS_WCOLL;
}
}
if (RB_LEN(&tp->t_out) == 0)
break;
if (scp->status & SLKED)
break;
c = getc(&tp->t_out);
splx(s);
ansi_put(scp, c);
s = spltty();
}
splx(s);
}
pccnprobe(struct consdev *cp)
{
int maj;
/* locate the major number */
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == pcopen)
break;
/* initialize required fields */
cp->cn_dev = makedev(maj, 0);
cp->cn_tp = &pccons[0];
cp->cn_pri = CN_INTERNAL;
}
pccninit(struct consdev *cp)
{
}
pccnputc(dev_t dev, char c)
{
int pos;
if (cur_scr_stat->status & UNKNOWN_MODE)
return;
if (c == '\n')
sput('\r', FG_LIGHTGREY | BG_BLACK);
sput(c, FG_LIGHTGREY | BG_BLACK);
pos = cur_scr_stat->crtat - cur_scr_stat->crt_base;
if (pos != cur_cursor_pos) {
cur_cursor_pos = pos;
outb(crtc_addr,14);
outb(crtc_addr+1,pos >> 8);
outb(crtc_addr,15);
outb(crtc_addr+1,pos&0xff);
}
}
pccngetc(dev_t dev)
{
int c, s;
s = spltty(); /* block scintr while we poll */
c = sgetc(0);
splx(s);
if (c == '\r') c = '\n';
return(c);
}
#ifndef DONT_BLANK
void scrn_saver(int test)
{
u_char val;
static int blanked = 0;
static long time_stamp;
if (test && blank_time) {
if (time.tv_sec > time_stamp + blank_time) {
blanked = 1;
outb(TSIDX, 0x01); val = inb(TSREG);
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
}
}
else {
time_stamp = time.tv_sec;
if (blanked) {
blanked = 0;
outb(TSIDX, 0x01); val = inb(TSREG);
outb(TSIDX, 0x01); outb(TSREG, val & 0xDF);
}
}
}
#else
/*
* alternative screen saver for cards that do not like blanking
* donated by Christoph Robitchko
*/
static u_short cur_cursor_shape; /* remember cursor shape */
void scrn_saver(int test)
{
const char saves[] = {"386BSD"};
static int blanked = 0;
static u_char *savs[sizeof(saves)-1];
static int dirx, diry;
static long time_stamp;
static u_short save_cursor;
int f;
scr_stat *scp = cur_scr_stat;
if (test && blank_time) {
if (time.tv_sec > time_stamp + blank_time) {
if (!blanked) {
bcopy(Crtat, scp->scr,
scp->max_posx * scp->max_posy * 2);
fillw(0x07<<8 | ' ', Crtat,
scp->max_posx * scp->max_posy);
set_border(0);
dirx = (scp->posx ? 1 : -1);
diry = (scp->posy ?
scp->max_posx : -scp->max_posx);
for (f=0; f< sizeof(saves)-1; f++)
savs[f] = (u_char *)Crtat + 2 *
(scp->posx+scp->posy*scp->max_posx);
*(savs[0]) = *saves;
f = scp->max_posy * scp->max_posx + 5;
outb(crtc_addr, 14);
outb(crtc_addr+1, f >> 8);
outb(crtc_addr, 15);
outb(crtc_addr+1, f & 0xff);
save_cursor = cur_cursor_shape;
blanked = 1;
}
if (blanked++ < 4)
return;
blanked = 1;
*(savs[sizeof(saves)-2]) = ' ';
for (f=sizeof(saves)-2; f > 0; f--)
savs[f] = savs[f-1];
f = (savs[0] - (u_char *)Crtat) / 2;
if ((f % scp->max_posx) == 0 ||
(f % scp->max_posx) == scp->max_posx - 1)
dirx = -dirx;
if ((f / scp->max_posx) == 0 ||
(f / scp->max_posx) == scp->max_posy - 1)
diry = -diry;
savs[0] += 2*dirx + 2*diry;
for (f=sizeof(saves)-2; f>=0; f--)
*(savs[f]) = saves[f];
}
}
else {
time_stamp = time.tv_sec;
if (blanked) {
bcopy(scp->scr, Crtat,
scp->max_posx * scp->max_posy * 2);
cur_cursor_pos = -1;
cursor_shape((save_cursor >> 8) & 0xff,
save_cursor & 0xff);
set_border(scp->border);
blanked = 0;
}
}
}
#endif /* DONT_BLANK */
static void cursor_shape(int start, int end)
{
outb(crtc_addr, 10);
outb(crtc_addr+1, start & 0xFF);
outb(crtc_addr, 11);
outb(crtc_addr+1, end & 0xFF);
#ifdef DONT_BLANK
cur_cursor_shape = ((start & 0xff) << 8) | (end & 0xff);
#endif
}
static void cursor_pos(void)
{
int pos = cur_scr_stat->crtat - cur_scr_stat->crt_base;
if (cur_scr_stat->status & UNKNOWN_MODE)
return;
scrn_saver(1);
if (pos != cur_cursor_pos) {
cur_cursor_pos = pos;
outb(crtc_addr,14);
outb(crtc_addr+1,pos >> 8);
outb(crtc_addr,15);
outb(crtc_addr+1,pos&0xff);
}
timeout(cursor_pos,0,hz/20);
}
static void clear_screen(scr_stat *scp)
{
move_crsr(scp, 0, 0);
fillw(scp->attr | ' ', scp->crt_base,
scp->max_posx * scp->max_posy);
}
static switch_scr(u_int next_scr)
{
if (in_putc) { /* don't switch if in putc */
nx_scr = next_scr + 1;
return 0;
}
if (next_scr >= NCONS || switch_in_progress) {
sysbeep(800, hz/4);
return -1;
}
switch_in_progress = 1;
old_scp = cur_scr_stat;
new_scp = &cons_scr_stat[next_scr];
wakeup(&new_scp->smode);
if (new_scp == old_scp) {
switch_in_progress = 0;
return 0;
}
new_pccons = &pccons[next_scr];
/* has controlling process died? */
if (old_scp->proc && (old_scp->proc != pfind(old_scp->pid)))
old_scp->smode.mode = VT_AUTO;
if (new_scp->proc && (new_scp->proc != pfind(new_scp->pid)))
new_scp->smode.mode = VT_AUTO;
/* check the modes and switch approbiatly */
if (old_scp->smode.mode == VT_PROCESS) {
old_scp->status |= SWITCH_WAIT_REL;
psignal(old_scp->proc, old_scp->smode.relsig);
}
else {
exchange_scr();
if (new_scp->smode.mode == VT_PROCESS) {
new_scp->status |= SWITCH_WAIT_ACQ;
psignal(new_scp->proc, new_scp->smode.acqsig);
}
else
switch_in_progress = 0;
}
return 0;
}
static void exchange_scr(void)
{
bcopy(Crtat, old_scp->scr, old_scp->max_posx * old_scp->max_posy * 2);
old_scp->crt_base = old_scp->scr;
move_crsr(old_scp, old_scp->posx, old_scp->posy);
cur_scr_stat = new_scp;
cur_pccons = new_pccons;
if (old_scp->status & KBD_RAW_MODE || new_scp->status & KBD_RAW_MODE)
shfts = ctls = alts = 0;
update_leds(new_scp->status & LOCK_KEY_MASK);
set_mode(new_scp);
new_scp->crt_base = Crtat;
move_crsr(new_scp, new_scp->posx, new_scp->posy);
bcopy(new_scp->scr, Crtat, new_scp->max_posx * new_scp->max_posy * 2);
nx_scr = 0;
}
static void move_crsr(scr_stat *scp, u_int x, u_int y)
{
if (x < 0 || y < 0 || x >= scp->max_posx || y >= scp->max_posy)
return;
scp->posx = x;
scp->posy = y;
scp->crtat = scp->crt_base + scp->posy * scp->max_posx + scp->posx;
}
static void move_up(u_short *s, u_short *d, u_int len)
{
s += len;
d += len;
while (len-- > 0)
*--d = *--s;
}
static void move_down(u_short *s, u_short *d, u_int len)
{
while (len-- > 0)
*d++ = *s++;
}
static void scan_esc(scr_stat *scp, u_char c)
{
static u_char ansi_col[16] =
{0, 4, 2, 6, 1, 5, 3, 7, 8, 12, 10, 14, 9, 13, 11, 15};
int i, n, m;
u_short *src, *dst, count;
if (scp->esc == 1) {
switch (c) {
case '[': /* Start ESC [ sequence */
scp->esc = 2;
scp->last_par = -1;
for (i = scp->n_par; i < MAX_ESC_PAR; i++)
scp->par[i] = 1;
scp->n_par = 0;
return;
case 'M': /* Move cursor up 1 line, scroll if at top */
if (scp->posy > 0)
move_crsr(scp, scp->posx, scp->posy - 1);
else {
move_up(scp->crt_base,
scp->crt_base + scp->max_posx,
(scp->max_posy - 1) * scp->max_posx);
fillw(scp->attr | ' ',
scp->crt_base, scp->max_posx);
}
break;
#if notyet
case 'Q':
scp->esc = 4;
break;
#endif
case 'c': /* Clear screen & home */
clear_screen(scp);
break;
}
}
else if (scp->esc == 2) {
if (c >= '0' && c <= '9') {
if (scp->n_par < MAX_ESC_PAR) {
if (scp->last_par != scp->n_par) {
scp->last_par = scp->n_par;
scp->par[scp->n_par] = 0;
}
else
scp->par[scp->n_par] *= 10;
scp->par[scp->n_par] += c - '0';
return;
}
}
scp->n_par = scp->last_par + 1;
switch (c) {
case ';':
if (scp->n_par < MAX_ESC_PAR)
return;
break;
case '=':
scp->esc = 3;
scp->last_par = -1;
for (i = scp->n_par; i < MAX_ESC_PAR; i++)
scp->par[i] = 1;
scp->n_par = 0;
return;
case 'A': /* up n rows */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx, scp->posy - n);
break;
case 'B': /* down n rows */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx, scp->posy + n);
break;
case 'C': /* right n columns */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx + n, scp->posy);
break;
case 'D': /* left n columns */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx - n, scp->posy);
break;
case 'E': /* cursor to start of line n lines down */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, 0, scp->posy + n);
break;
case 'F': /* cursor to start of line n lines up */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, 0, scp->posy - n);
break;
case 'f': /* System V consoles .. */
case 'H': /* Cursor move */
if (scp->n_par == 0)
move_crsr(scp, 0, 0);
else if (scp->n_par == 2)
move_crsr(scp, scp->par[1] - 1, scp->par[0] - 1);
break;
case 'J': /* Clear all or part of display */
if (scp->n_par == 0)
n = 0;
else
n = scp->par[0];
switch (n) {
case 0: /* clear form cursor to end of display */
fillw(scp->attr | ' ', scp->crtat,
scp->crt_base + scp->max_posx *
scp->max_posy - scp->crtat);
break;
case 1: /* clear from beginning of display to cursor */
fillw(scp->attr | ' ', scp->crt_base,
scp->crtat - scp->crt_base);
break;
case 2: /* clear entire display */
clear_screen(scp);
break;
}
break;
case 'K': /* Clear all or part of line */
if (scp->n_par == 0)
n = 0;
else
n = scp->par[0];
switch (n) {
case 0: /* clear form cursor to end of line */
fillw(scp->attr | ' ', scp->crtat,
scp->max_posx - scp->posx);
break;
case 1: /* clear from beginning of line to cursor */
fillw(scp->attr | ' ',
scp->crtat - (scp->max_posx - scp->posx),
(scp->max_posx - scp->posx) + 1);
break;
case 2: /* clear entire line */
fillw(scp->attr | ' ',
scp->crtat - (scp->max_posx - scp->posx),
scp->max_posx);
break;
}
break;
case 'L': /* Insert n lines */
n = scp->par[0]; if (n < 1) n = 1;
if (n > scp->max_posy - scp->posy)
n = scp->max_posy - scp->posy;
src = scp->crt_base + scp->posy * scp->max_posx;
dst = src + n * scp->max_posx;
count = scp->max_posy - (scp->posy + n);
move_up(src, dst, count * scp->max_posx);
fillw(scp->attr | ' ', src, n * scp->max_posx);
break;
case 'M': /* Delete n lines */
n = scp->par[0]; if (n < 1) n = 1;
if (n > scp->max_posy - scp->posy)
n = scp->max_posy - scp->posy;
dst = scp->crt_base + scp->posy * scp->max_posx;
src = dst + n * scp->max_posx;
count = scp->max_posy - (scp->posy + n);
move_down(src, dst, count * scp->max_posx);
src = dst + count * scp->max_posx;
fillw(scp->attr | ' ', src, n * scp->max_posx);
break;
case 'P': /* Delete n chars */
n = scp->par[0]; if (n < 1) n = 1;
if (n > scp->max_posx - scp->posx)
n = scp->max_posx - scp->posx;
dst = scp->crtat;
src = dst + n;
count = scp->max_posx - (scp->posx + n);
move_down(src, dst, count);
src = dst + count;
fillw(scp->attr | ' ', src, n);
break;
case '@': /* Insert n chars */
n = scp->par[0]; if (n < 1) n = 1;
if (n > scp->max_posx - scp->posx)
n = scp->max_posx - scp->posx;
src = scp->crtat;
dst = src + n;
count = scp->max_posx - (scp->posx + n);
move_up(src, dst, count);
fillw(scp->attr | ' ', src, n);
break;
case 'S': /* scroll up n lines */
n = scp->par[0]; if (n < 1) n = 1;
bcopy(scp->crt_base + (scp->max_posx * n),
scp->crt_base,
scp->max_posx * (scp->max_posy - n) *
sizeof(u_short));
fillw(scp->attr | ' ',
scp->crt_base + scp->max_posx *
(scp->max_posy - 1),
scp->max_posx);
break;
case 'T': /* scroll down n lines */
n = scp->par[0]; if (n < 1) n = 1;
bcopy(scp->crt_base,
scp->crt_base + (scp->max_posx * n),
scp->max_posx * (scp->max_posy - n) *
sizeof(u_short));
fillw(scp->attr | ' ', scp->crt_base, scp->max_posx);
break;
case 'X': /* delete n characters in line */
n = scp->par[0]; if (n < 1) n = 1;
fillw(scp->attr | ' ', scp->crt_base + scp->posx +
((scp->max_posx*scp->posy) * sizeof(u_short)), n);
break;
case 'Z': /* move n tabs backwards */
n = scp->par[0]; if (n < 1) n = 1;
if ((i = scp->posx & 0xf8) == scp->posx)
i -= 8*n;
else
i -= 8*(n-1);
if (i < 0)
i = 0;
move_crsr(scp, i, scp->posy);
break;
case '`': /* move cursor to column n */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, n, scp->posy);
break;
case 'a': /* move cursor n columns to the right */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx + n, scp->posy);
break;
case 'd': /* move cursor to row n */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx, n);
break;
case 'e': /* move cursor n rows down */
n = scp->par[0]; if (n < 1) n = 1;
move_crsr(scp, scp->posx, scp->posy + n);
break;
case 'm': /* change attribute */
if (scp->n_par == 0)
n = 0;
else
n = scp->par[0];
switch (n) {
case 0: /* back to normal */
scp->attr = scp->std_attr;
break;
case 1: /* highlight (bold) */
scp->attr &= 0xFF00;
scp->attr |= 0x0800;
break;
case 4: /* highlight (underline) */
scp->attr &= 0x0F00;
scp->attr |= 0x0800;
break;
case 5: /* blink */
scp->attr &= 0xFF00;
scp->attr |= 0x8000;
break;
case 7: /* reverse video */
scp->attr = scp->rev_attr;
break;
case 30: case 31: case 32: case 33: /* set fg color */
case 34: case 35: case 36: case 37:
scp->attr = (scp->attr & 0xF0FF)
| (ansi_col[(n - 30) & 7] << 8);
break;
case 40: case 41: case 42: case 43: /* set bg color */
case 44: case 45: case 46: case 47:
scp->attr = (scp->attr & 0x0FFF)
| (ansi_col[(n - 40) & 7] << 12);
break;
}
break;
case 'x':
if (scp->n_par == 0)
n = 0;
else
n = scp->par[0];
switch (n) {
case 0: /* reset attributes */
scp->attr = scp->std_attr = FG_LIGHTGREY << 8;
break;
case 1: /* set ansi background */
scp->attr = scp->std_attr =
(scp->std_attr & 0x0F00)
| (ansi_col[(scp->par[1])&0x0F] << 12);
break;
case 2: /* set ansi foreground */
scp->attr = scp->std_attr =
(scp->std_attr & 0xF000)
| (ansi_col[(scp->par[1])&0x0F] << 8);
break;
case 3: /* set ansi attribute directly */
scp->attr = scp->std_attr =
(scp->par[1] & 0xFF) << 8;
break;
case 5: /* set ansi reverse video background */
scp->rev_attr =
(scp->rev_attr & 0x0F00)
| (ansi_col[(scp->par[1]) & 0x0F] << 12);
break;
case 6: /* set ansi reverse video foreground */
scp->rev_attr =
(scp->rev_attr & 0xF000)
| (ansi_col[(scp->par[1]) & 0x0F] << 8);
break;
case 7: /* set ansi reverse video directly */
scp->rev_attr = (scp->par[1] & 0xFF) << 8;
break;
}
break;
case 'z': /* switch to (virtual) console n */
if (scp->n_par == 1)
switch_scr(scp->par[0]);
break;
}
}
else if (scp->esc == 3) {
if (c >= '0' && c <= '9') {
if (scp->n_par < MAX_ESC_PAR) {
if (scp->last_par != scp->n_par) {
scp->last_par = scp->n_par;
scp->par[scp->n_par] = 0;
}
else
scp->par[scp->n_par] *= 10;
scp->par[scp->n_par] += c - '0';
return;
}
}
scp->n_par = scp->last_par + 1;
switch (c) {
case ';':
if (scp->n_par < MAX_ESC_PAR)
return;
break;
case 'A': /* set display border color */
if (scp->n_par == 1)
scp->border=scp->par[0] & 0xff;
if (scp == cur_scr_stat)
set_border(scp->border);
break;
case 'B': /* set bell pitch and duration */
if (scp->n_par == 2) {
scp->bell_pitch = scp->par[0];
scp->bell_duration = scp->par[1]*10;
}
break;
case 'C': /* set cursor shape (start & end line) */
if (scp->n_par == 2)
cursor_shape(scp->par[0], scp->par[1]);
break;
case 'F': /* set ansi foreground */
if (scp->n_par == 1)
scp->attr = scp->std_attr =
(scp->std_attr & 0xF000)
| ((scp->par[0] & 0x0F) << 8);
break;
case 'G': /* set ansi background */
if (scp->n_par == 1)
scp->attr = scp->std_attr =
(scp->std_attr & 0x0F00)
| ((scp->par[0] & 0x0F) << 12);
break;
case 'H': /* set ansi reverse video foreground */
if (scp->n_par == 1)
scp->rev_attr =
(scp->rev_attr & 0xF000)
| ((scp->par[0] & 0x0F) << 8);
break;
case 'I': /* set ansi reverse video background */
if (scp->n_par == 1)
scp->rev_attr =
(scp->rev_attr & 0x0F00)
| ((scp->par[0] & 0x0F) << 12);
break;
}
}
scp->esc = 0;
}
#define wrtchar(scp, c) ( *scp->crtat = (c), scp->crtat++, scp->posx++ )
static void ansi_put(scr_stat *scp, u_char c)
{
int s;
if (scp == cur_scr_stat )
scrn_saver(0);
if (scp->status & UNKNOWN_MODE)
return;
in_putc++;
if (scp->esc)
scan_esc(scp, c);
else switch(c) {
case 0x1B:
scp->esc = 1;
scp->n_par = 0;
break;
case '\t':
do {
wrtchar(scp, scp->attr | ' ');
} while (scp->posx % 8);
break;
case '\b': /* non-destructive backspace */
if (scp->crtat > scp->crt_base) {
scp->crtat--;
if (scp->posx > 0)
scp->posx--;
else {
scp->posx += scp->max_posx - 1;
scp->posy--;
}
}
break;
case '\r':
move_crsr(scp, 0, scp->posy);
break;
case '\n':
scp->crtat += scp->max_posx;
scp->posy++;
break;
case '\f':
clear_screen(scp);
break;
default:
if (c == 7) {
if (scp == cur_scr_stat)
sysbeep(scp->bell_pitch, scp->bell_duration);
}
/* Print only printables */
else {
wrtchar(scp, scp->attr | c);
if (scp->posx >= scp->max_posx) {
scp->posx = 0;
scp->posy++;
}
break;
}
}
if (scp->crtat >= scp->crt_base + scp->max_posy * scp->max_posx) {
bcopy(scp->crt_base + scp->max_posx, scp->crt_base,
scp->max_posx * (scp->max_posy - 1) * sizeof(u_short));
fillw(scp->attr | ' ',
scp->crt_base + scp->max_posx * (scp->max_posy - 1),
scp->max_posx);
scp->crtat -= scp->max_posx;
scp->posy--;
}
s = spltty();
in_putc--;
splx(s);
if (nx_scr)
switch_scr(nx_scr - 1);
}
void consinit(void)
{
u_short *cp = Crtat + (CGA_BUF-MONO_BUF)/sizeof(u_short), was;
scr_stat *scp;
unsigned cursorat;
int i;
/*
* catch that once in a blue moon occurence when consinit is called
* TWICE, adding the CGA_BUF offset again -> poooff
* thanks to Christoph Robitchko for finding this one !!
*/
if (crtat != 0)
return;
/*
* Crtat initialized to point to MONO buffer, if not present change
* to CGA_BUF offset. ONLY ADD the difference since locore.s adds
* in the remapped offset at the right time
*/
was = *cp;
*cp = (u_short) 0xA55A;
if (*cp != 0xA55A) {
crtc_addr = MONO_BASE;
} else {
*cp = was;
crtc_addr = COLOR_BASE;
Crtat = Crtat + (CGA_BUF-MONO_BUF)/sizeof(u_short);
}
/* Extract cursor location */
outb(crtc_addr,14);
cursorat = inb(crtc_addr+1)<<8 ;
outb(crtc_addr,15);
cursorat |= inb(crtc_addr+1);
crtat = Crtat+ cursorat;
cons_scr_stat[0].crtat = crtat;
cons_scr_stat[0].crt_base = Crtat;
cons_scr_stat[0].posx = cursorat % COL;
cons_scr_stat[0].posy = cursorat / COL;
cons_scr_stat[0].esc = 0;
cons_scr_stat[0].std_attr = (FG_LIGHTGREY | BG_BLACK) << 8;
cons_scr_stat[0].rev_attr = (FG_BLACK | BG_LIGHTGREY) << 8;
cons_scr_stat[0].attr = (FG_LIGHTGREY | BG_BLACK) << 8;
cons_scr_stat[0].border = BG_BLACK;;
cons_scr_stat[0].max_posx = COL;
cons_scr_stat[0].max_posy = ROW;
cons_scr_stat[0].status = 0;
cons_scr_stat[0].pid = 0;
cons_scr_stat[0].proc = NULL;
cons_scr_stat[0].smode.mode = VT_AUTO;
cons_scr_stat[0].bell_pitch = 800;
cons_scr_stat[0].bell_duration = 10;
clear_screen(&cons_scr_stat[0]);
}
static void sput(u_char c, u_char ca)
{
int i;
scr_stat *scp = &cons_scr_stat[0];
if (crtat == 0)
consinit();
i = scp->attr;
scp->attr = ca << 8;
ansi_put(scp, c);
scp->attr = i;
}
static u_char *get_fstr(u_int c, u_int *len)
{
u_int i;
if (!(c & FKEY))
return(NULL);
i = (c & 0xFF) - F_FN;
if (i > n_fkey_tab)
return(NULL);
*len = fkey_tab[i].len;
return(fkey_tab[i].str);
}
static update_leds(int which)
{
u_char xlate_leds[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
int i;
kbd_cmd(KB_SETLEDS); /* LED Command */
kbd_cmd(xlate_leds[which]);
kbd_wait();
}
volatile void reset_cpu(void)
{
int i;
while (1) {
kbd_cmd(KB_RESET_CPU); /* Reset Command */
DELAY(4000000);
kbd_cmd(KB_RESET); /* Keyboard Reset Command */
}
}
/*
* sgetc(noblock) : get a character from the keyboard.
* If noblock = 0 wait until a key is gotten. Otherwise return a 0x100.
*/
u_int sgetc(int noblock)
{
u_char dt, modifier;
static u_char esc_flag = 0;
u_int state, action;
int i;
struct key_t *key;
next_code:
kbd_wait();
/* First see if there is something in the keyboard port */
if (inb(KB_STAT) & KB_BUF_FULL)
dt = inb(KB_DATA);
else if (noblock)
return(0x100);
else
goto next_code;
if (cur_scr_stat->status & KBD_RAW_MODE)
return dt;
/* Check for cntl-alt-del */
if ((dt == 83) && ctls && alts)
cpu_reset();
#if NDDB > 0
/* Check for cntl-alt-esc */
if ((dt == 1) && ctls && alts) {
/* if debugger called, try to switch to console 0 */
if (cur_scr_stat->smode.mode == VT_AUTO &&
cons_scr_stat[0].smode.mode == VT_AUTO)
switch_scr(0);
Debugger();
}
#endif
if (dt == 0xE0 || dt == 0xE1) {
esc_flag = dt;
goto next_code;
}
if ((dt & 0x7F) >= key_map.n_keys)
goto next_code;
if (esc_flag == 0xE0) {
switch (dt & 0x7F) {
case 0x2A: /* This may come because the keyboard keeps */
case 0x36: /* its own caps lock status, we ignore SOS */
goto next_code;
/* NOT REACHED */
case 0x1C: /* keypad enter key */
modifier = 0x59;
break;
case 0x1D: /* right control key */
modifier = 0x5a;
break;
case 0x35: /* keypad divide key */
modifier = 0x5b;
break;
case 0x37: /* print scrn key */
modifier = 0x5c;
break;
case 0x38: /* right alt key (alt gr) */
modifier = 0x5d;
break;
case 0x47: /* grey home key */
modifier = 0x5e;
break;
case 0x48: /* grey up arrow key */
modifier = 0x5f;
break;
case 0x49: /* grey page up key */
modifier = 0x60;
break;
case 0x4b: /* grey left arrow key */
modifier = 0x61;
break;
case 0x4d: /* grey right arrow key */
modifier = 0x62;
break;
case 0x4f: /* grey end key */
modifier = 0x63;
break;
case 0x50: /* grey down arrow key */
modifier = 0x64;
break;
case 0x51: /* grey page down key */
modifier = 0x65;
break;
case 0x52: /* grey insert key */
modifier = 0x66;
break;
case 0x53: /* grey delete key */
modifier = 0x67;
break;
default: /* every thing else is ignored */
goto next_code;
/* NOT REACHED */
}
dt = (dt & 0x80) | modifier;
}
else if (esc_flag == (u_char)0xE1 && ((dt & 0x7F) == 0x1D)) {
esc_flag = 0x1D;
goto next_code;
}
else if (esc_flag == 0x1D && ((dt & 0x7F) == 0x45))
dt = (dt & 0x80) | 0x68;
esc_flag = 0;
state = (shfts ? 1 : 0 ) | (2 * (ctls ? 1 : 0)) | (4 * (alts ? 1 : 0));
key = &key_map.key[dt & 0x7F];
if ( ((key->flgs & FLAG_LOCK_C) && (cur_scr_stat->status & CLKED))
|| ((key->flgs & FLAG_LOCK_N) && (cur_scr_stat->status & NLKED)) )
state ^= 1;
/* Check for make/break */
action = key->map[state];
if (dt & 0x80) {
/* break */
if (key->spcl & 0x80) {
switch (action) {
case LSH:
shfts &= ~1;
break;
case RSH:
shfts &= ~2;
break;
case LCTR:
ctls &= ~1;
break;
case RCTR:
ctls &= ~2;
break;
case LALT:
alts &= ~1;
break;
case RALT:
alts &= ~2;
break;
}
}
} else {
/* make */
if (key->spcl & (0x80>>state)) {
switch (action) {
/* LOCKING KEYS */
case NLK:
if (cur_scr_stat->status & NLKED)
cur_scr_stat->status &= ~NLKED;
else
cur_scr_stat->status |= NLKED;
update_leds(cur_scr_stat->status&LOCK_KEY_MASK);
break;
case CLK:
if (cur_scr_stat->status & CLKED)
cur_scr_stat->status &= ~CLKED;
else
cur_scr_stat->status |= CLKED;
update_leds(cur_scr_stat->status&LOCK_KEY_MASK);
break;
case SLK:
if (cur_scr_stat->status & SLKED) {
cur_scr_stat->status &= ~SLKED;
pcstart(&pccons[get_scr_num(cur_scr_stat)]);
}
else
cur_scr_stat->status |= SLKED;
update_leds(cur_scr_stat->status&LOCK_KEY_MASK);
break;
/* NON-LOCKING KEYS */
case LSH:
shfts |= 1;
break;
case RSH:
shfts |= 2;
break;
case LCTR:
ctls |= 1;
break;
case RCTR:
ctls |= 2;
break;
case LALT:
alts |= 1;
break;
case RALT:
alts |= 2;
break;
default:
if (action >= F_SCR && action <= L_SCR) {
switch_scr(action - F_SCR);
break;
}
if (action >= F_FN && action <= L_FN) {
return(action | FKEY);
}
return(action);
}
}
else return(action);
}
goto next_code;
}
/* -hv- 22-Apr-93: to make init_main more portable */
void cons_highlight(void)
{
scr_stat *scp = &cons_scr_stat[0];
scp->attr &= 0xFF00;
scp->attr |= 0x0800;
}
void cons_normal(void)
{
scr_stat *scp = &cons_scr_stat[0];
scp->attr = scp->std_attr;
}
int getchar(void)
{
char thechar;
int delay, x;
pcconsoftc.cs_flags |= CSF_POLLING;
x = splhigh();
sput('>', FG_RED | BG_BLACK);
thechar = (char) sgetc(0);
pcconsoftc.cs_flags &= ~CSF_POLLING;
splx(x);
switch (thechar) {
default:
if (thechar >= ' ')
sput(thechar, FG_RED | BG_BLACK);
return(thechar);
case cr:
case lf:
sput(cr, FG_RED | BG_BLACK);
sput(lf, FG_RED | BG_BLACK);
return(lf);
case bs:
case del:
sput(bs, FG_RED | BG_BLACK);
sput(' ', FG_RED | BG_BLACK);
sput(bs, FG_RED | BG_BLACK);
return(thechar);
case cntld:
sput('^', FG_RED | BG_BLACK) ;
sput('D', FG_RED | BG_BLACK) ;
sput('\r', FG_RED | BG_BLACK) ;
sput('\n', FG_RED | BG_BLACK) ;
return(0);
}
}
int pcmmap(dev_t dev, int offset, int nprot)
{
if (offset > 0x20000)
return EINVAL;
return i386_btop((VIDEOMEM + offset));
}
static void kbd_wait(void)
{
int i;
for (i=0; i<10000; i++)
if ((inb(KB_STAT) & KB_READY) == 0)
break;
}
static void kbd_cmd(u_char command)
{
kbd_wait();
outb(KB_DATA, command);
}
static void set_mode(scr_stat *scp)
{
u_char byte;
if (scp != cur_scr_stat)
return;
/* setup video hardware for the given mode */
switch(scp->mode) {
case TEXT80x25:
outb(crtc_addr, 9); byte = inb(crtc_addr+1);
outb(crtc_addr, 9); outb(crtc_addr+1, byte | 0x0F);
outb(TSIDX, 0x03); outb(TSREG, 0x00); /* select font 0 */
break;
case TEXT80x50:
outb(crtc_addr, 9); byte = inb(crtc_addr+1);
outb(crtc_addr, 9); outb(crtc_addr+1, (byte & 0xF0) | 0x07);
outb(TSIDX, 0x03); outb(TSREG, 0x05); /* select font 1 */
break;
default:
return;
}
/* set border color for this (virtual) console */
set_border(scp->border);
/* (re)activate cursor */
untimeout(cursor_pos, 0);
cursor_pos();
}
static void set_border(int color)
{
inb(crtc_addr+6); /* reset flip-flop */
outb(ATC, 0x11); outb(ATC, color);
inb(crtc_addr+6); /* reset flip-flop */
outb(ATC, 0x20); /* enable Palette */
}
static load_font(int segment, int size, char* font)
{
int ch, line;
u_char val;
outb(TSIDX, 0x01); val = inb(TSREG); /* blank screen */
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
/* setup vga for loading fonts (graphics plane mode) */
inb(crtc_addr+6); /* reset flip/flop */
outb(ATC, 0x30); outb(ATC, 0x01);
outb(TSIDX, 0x02); outb(TSREG, 0x04);
outb(TSIDX, 0x04); outb(TSREG, 0x06);
outb(GDCIDX, 0x04); outb(GDCREG, 0x02);
outb(GDCIDX, 0x05); outb(GDCREG, 0x00);
outb(GDCIDX, 0x06); outb(GDCREG, 0x05); /* addr = a0000, 64kb */
for (ch=0; ch < 256; ch++)
for (line=0; line < size; line++)
*((char *)atdevbase+(segment*0x4000)+(ch*32)+line) =
font[(ch*size)+line];
/* setup vga for text mode again */
inb(crtc_addr+6); /* reset flip/flop */
outb(ATC, 0x30); outb(ATC, 0x0C);
outb(TSIDX, 0x02); outb(TSREG, 0x03);
outb(TSIDX, 0x04); outb(TSREG, 0x02);
outb(GDCIDX, 0x04); outb(GDCREG, 0x00);
outb(GDCIDX, 0x05); outb(GDCREG, 0x10);
if (crtc_addr == MONO_BASE) {
outb(GDCIDX, 0x06); outb(GDCREG, 0x0A); /* addr = b0000, 32kb */
}
else {
outb(GDCIDX, 0x06); outb(GDCREG, 0x0E); /* addr = b8000, 32kb */
}
outb(TSIDX, 0x01); val = inb(TSREG); /* unblank screen */
outb(TSIDX, 0x01); outb(TSREG, val & 0xDF);
}
static void load_palette(void)
{
int i;
outb(PIXMASK, 0xFF); /* no pixelmask */
outb(PALWADR, 0x00);
for (i=0x00; i<0x300; i++)
outb(PALDATA, palette[i]);
inb(crtc_addr+6); /* reset flip/flop */
outb(ATC, 0x20); /* enable palette */
}
static void save_palette(void)
{
int i;
outb(PALRADR, 0x00);
for (i=0x00; i<0x300; i++)
palette[i] = inb(PALDATA);
inb(crtc_addr+6); /* reset flip/flop */
}
static change_winsize(struct tty *tp, int x, int y)
{
if (tp->t_winsize.ws_col != x || tp->t_winsize.ws_row != y) {
tp->t_winsize.ws_col = x;
tp->t_winsize.ws_row = y;
pgsignal(tp->t_pgrp, SIGWINCH, 1);
}
}
#endif /* NSC */
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.