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769cb45b8e
freebsd/sys/i386/isa/syscons.c
Nate Williams 10a0cecedc Moved paren in sgetc to where it belongs. (My fault, I must have wiped it 
out when I applied the patch to get the new features by hand)
1994-02-01 19:04:18 +00:00

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/*-
* Copyright (c) 1992-1994 Søren Schmidt
* 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.
*
* from:@(#)syscons.c 1.3 940129
* $Id: syscons.c,v 1.31 1994/02/01 15:09:10 rich Exp $
*
*/
#if !defined(FADE_SAVER) && !defined(BLANK_SAVER) && !defined(STAR_SAVER) && !defined(SNAKE_SAVER)
#define SNAKE_SAVER
#endif
#if !defined(__FreeBSD__)
#define FAT_CURSOR
#endif
#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 "malloc.h"
#include "i386/isa/isa.h"
#include "i386/isa/isa_device.h"
#include "i386/isa/timerreg.h"
#include "i386/i386/cons.h"
#include "machine/console.h"
#include "machine/psl.h"
#include "machine/frame.h"
#include "machine/pc/display.h"
#include "iso8859.font"
#include "kbdtables.h"
#include "sc.h"
#if NSC > 0
#if !defined(NCONS)
#define NCONS 12
#endif
/* status flags */
#define LOCK_KEY_MASK 0x0000F
#define LED_MASK 0x00007
#define UNKNOWN_MODE 0x00010
#define KBD_RAW_MODE 0x00020
#define SWITCH_WAIT_REL 0x00040
#define SWITCH_WAIT_ACQ 0x00080
/* video hardware memory addresses */
#define VIDEOMEM 0x000A0000
/* misc defines */
#define MAX_ESC_PAR 3
#define TEXT80x25 1
#define TEXT80x50 2
#define COL 80
#define ROW 25
#define BELL_DURATION 5
#define BELL_PITCH 800
#define TIMER_FREQ 1193182 /* should be in isa.h */
#define PCBURST 128
/* defines related to hardware addresses */
#define MONO_BASE 0x3B4 /* crt controller base mono */
#define COLOR_BASE 0x3D4 /* crt controller base color */
#define ATC IO_VGA+0x00 /* attribute controller */
#define TSIDX IO_VGA+0x04 /* timing sequencer idx */
#define TSREG IO_VGA+0x05 /* timing sequencer data */
#define PIXMASK IO_VGA+0x06 /* pixel write mask */
#define PALRADR IO_VGA+0x07 /* palette read address */
#define PALWADR IO_VGA+0x08 /* palette write address */
#define PALDATA IO_VGA+0x09 /* palette data register */
#define GDCIDX IO_VGA+0x0E /* graph data controller idx */
#define GDCREG IO_VGA+0x0F /* graph data controller data */
/* special characters */
#define cntlc 0x03
#define cntld 0x04
#define bs 0x08
#define lf 0x0a
#define cr 0x0d
#define del 0x7f
typedef struct term_stat {
int esc; /* processing escape sequence */
int num_param; /* # of parameters to ESC */
int last_param; /* last parameter # */
int param[MAX_ESC_PAR]; /* contains ESC parameters */
int cur_attr; /* current attributes */
int std_attr; /* normal attributes */
int rev_attr; /* reverse attributes */
} term_stat;
typedef struct scr_stat {
u_short *crt_base; /* address of screen memory */
u_short *scr_buf; /* buffer when off screen */
u_short *crtat; /* cursor address */
int xpos; /* current X position */
int ypos; /* current Y position */
int xsize; /* X size */
int ysize; /* Y size */
term_stat term; /* terminal emulation stuff */
char cursor_start; /* cursor start line # */
char cursor_end; /* cursor end line # */
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;
typedef struct default_attr {
int std_attr; /* normal attributes */
int rev_attr; /* reverse attributes */
} default_attr;
static default_attr user_default = {
(FG_LIGHTGREY | BG_BLACK) << 8,
(FG_BLACK | BG_LIGHTGREY) << 8
};
static default_attr kernel_default = {
(FG_WHITE | BG_BLACK) << 8,
(FG_BLACK | BG_LIGHTGREY) << 8
};
static scr_stat console[NCONS];
static scr_stat *cur_console = &console[0];
static scr_stat *new_scp, *old_scp;
static term_stat kernel_console;
static default_attr *current_default;
static int switch_in_progress = 0;
static u_short *crtat = 0;
static u_int crtc_addr = MONO_BASE;
static char crtc_vga = 0;
static u_char shfts = 0, ctls = 0, alts = 0, agrs = 0, metas = 0;
static u_char nlkcnt = 0, clkcnt = 0, slkcnt = 0, alkcnt = 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 = 0;
static char polling = 0;
static int delayed_next_scr;
static char saved_console = -1; /* saved console number */
static long scrn_blank_time = 0; /* screen saver timout value */
static int scrn_blanked = 0; /* screen saver active flag */
static long scrn_time_stamp;
static u_char scr_map[256];
extern int hz;
extern struct timeval time;
/* 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);
void pcxint(dev_t dev);
void pcstart(struct tty *tp);
void pccnprobe(struct consdev *cp);
void pccninit(struct consdev *cp);
void pccnputc(dev_t dev, char c);
int pccngetc(dev_t dev);
void scintr(int unit);
int pcmmap(dev_t dev, int offset, int nprot);
u_int sgetc(int noblock);
int getchar(void);
static void scinit(void);
static void scput(u_char c);
static u_int scgetc(int noblock);
static void scrn_saver(int test);
static struct tty *get_tty_ptr(dev_t dev);
static scr_stat *get_scr_stat(dev_t dev);
static int get_scr_num();
static void cursor_shape(int start, int end);
static void get_cursor_shape(int *start, int *end);
static void cursor_pos(int force);
static void clear_screen(scr_stat *scp);
static int switch_scr(u_int next_scr);
static void exchange_scr(void);
static void move_crsr(scr_stat *scp, int x, 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);
static u_char *get_fstr(u_int c, u_int *len);
static void update_leds(int which);
static void kbd_wait(void);
static void kbd_cmd(u_char command);
static void kbd_cmd2(u_char command, u_char arg);
static int kbd_reply(void);
static void set_mode(scr_stat *scp);
static void set_border(int color);
static void load_font(int segment, int size, char* font);
static void save_palette(void);
static void load_palette(void);
static void change_winsize(struct tty *tp, int x, int y);
/* OS specific stuff */
#if defined(NetBSD)
#define VIRTUAL_TTY(x) pc_tty[x] ? (pc_tty[x]) : (pc_tty[x] = ttymalloc())
#define CONSOLE_TTY pc_tty[NCONS] ? (pc_tty[NCONS]) : (pc_tty[NCONS] = ttymalloc())
#define frametype struct trapframe
#define eflags tf_eflags
extern u_short *Crtat;
struct tty *pc_tty[NCONS+1];
int ttrstrt();
#endif
#if defined(__FreeBSD__)
#define frametype struct trapframe
#define eflags tf_eflags
#define timeout_t timeout_func_t
#define MONO_BUF (KERNBASE+0xB0000)
#define CGA_BUF (KERNBASE+0xB8000)
#endif
#if defined(__386BSD__) && !defined(__FreeBSD__)
#define frametype struct syscframe
#define eflags sf_eflags
#define timeout_t caddr_t
#define MONO_BUF (0xFE0B0000)
#define CGA_BUF (0xFE0B8000)
#endif
#if defined(__386BSD__) || defined(__FreeBSD__)
#define VIRTUAL_TTY(x) &pccons[x]
#define CONSOLE_TTY &pccons[NCONS]
u_short *Crtat = (u_short *)MONO_BUF;
struct tty pccons[NCONS+1];
void consinit(void) {scinit();}
#include "ddb.h"
#if NDDB > 0
#define DDB 1
#endif
#endif
struct isa_driver scdriver = {
pcprobe, pcattach, "sc",
};
int pcprobe(struct isa_device *dev)
{
/* Enable interrupts and keyboard controller */
kbd_wait();
outb(KB_STAT, KB_WRITE);
kbd_cmd(0x4D);
/* Start keyboard stuff RESET */
for (;;) {
kbd_cmd(KB_RESET);
if (kbd_reply() == KB_ACK && /* command accepted */
kbd_reply() == 0xaa) /* self test passed */
break;
printf("Keyboard reset failed\n");
}
return (IO_KBDSIZE);
}
int pcattach(struct isa_device *dev)
{
scr_stat *scp;
int start = -1, end = -1, i;
printf("sc%d: ", dev->id_unit);
if (crtc_vga)
if (crtc_addr == MONO_BASE)
printf("VGA mono");
else
printf("VGA color");
else
if (crtc_addr == MONO_BASE)
printf("MDA/hercules");
else
printf("CGA/EGA");
if (NCONS > 1)
printf(" <%d virtual consoles>\n", NCONS);
else
printf("\n");
#if defined(FAT_CURSOR)
start = 0;
end = 18;
if (crtc_vga) {
#else
if (crtc_vga) {
get_cursor_shape(&start, &end);
#endif
save_palette();
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
load_font(2, 14, font_8x14);
}
current_default = &user_default;
for (i = 0; i < NCONS; i++) {
scp = &console[i];
scp->scr_buf = (u_short *)malloc(COL * ROW * 2, M_DEVBUF, M_NOWAIT);
scp->mode = TEXT80x25;
scp->term.esc = 0;
scp->term.std_attr = current_default->std_attr;
scp->term.rev_attr = current_default->rev_attr;
scp->term.cur_attr = scp->term.std_attr;
scp->border = BG_BLACK;
scp->cursor_start = start;
scp->cursor_end = end;
scp->xsize = COL;
scp->ysize = ROW;
scp->bell_pitch = BELL_PITCH;
scp->bell_duration = BELL_DURATION;
scp->status = 0;
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
if (i > 0) {
scp->crt_base = scp->crtat = scp->scr_buf;
fillw(scp->term.cur_attr|scr_map[0x20], scp->scr_buf, COL*ROW);
}
}
/* get cursor going */
#if defined(FAT_CURSOR)
cursor_shape(console[0].cursor_start,
console[0].cursor_end);
#endif
cursor_pos(1);
return 0;
}
static struct tty *get_tty_ptr(dev_t dev)
{
int unit = minor(dev);
if (unit > NCONS)
return(NULL);
if (unit == NCONS)
return(CONSOLE_TTY);
return(VIRTUAL_TTY(unit));
}
static scr_stat *get_scr_stat(dev_t dev)
{
int unit = minor(dev);
if (unit > NCONS)
return(NULL);
if (unit == NCONS)
return(&console[0]);
return(&console[unit]);
}
static int get_scr_num()
{
int i = 0;
while ((i < NCONS) && (cur_console != &console[i])) i++;
return i < NCONS ? i : 0;
}
int pcopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = get_tty_ptr(dev);
if (!tp)
return(ENXIO);
tp->t_oproc = pcstart;
tp->t_param = pcparam;
tp->t_dev = dev;
if (!(tp->t_state & TS_ISOPEN)) {
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;
tp->t_cflag |= CLOCAL;
#if defined(__FreeBSD__)
return((*linesw[tp->t_line].l_open)(dev, tp, 0));
#else
return((*linesw[tp->t_line].l_open)(dev, tp));
#endif
}
int pcclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = get_tty_ptr(dev);
struct scr_stat *scp;
if (!tp)
return(ENXIO);
if (minor(dev) < NCONS) {
scp = get_scr_stat(tp->t_dev);
if (scp->status & SWITCH_WAIT_ACQ)
wakeup((caddr_t)&scp->smode);
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
}
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
return(0);
}
int pcread(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = get_tty_ptr(dev);
if (!tp)
return(ENXIO);
return((*linesw[tp->t_line].l_read)(tp, uio, flag));
}
int pcwrite(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = get_tty_ptr(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.
*/
void scintr(int unit)
{
static struct tty *cur_tty;
int c, len;
u_char *cp;
/* make screensaver happy */
scrn_time_stamp = time.tv_sec;
if (scrn_blanked)
scrn_saver(0);
c = scgetc(1);
cur_tty = VIRTUAL_TTY(get_scr_num());
if (!(cur_tty->t_state & TS_ISOPEN))
cur_tty = CONSOLE_TTY;
if (!(cur_tty->t_state & TS_ISOPEN) || polling)
return;
switch (c & 0xff00) {
case 0x0000: /* normal key */
(*linesw[cur_tty->t_line].l_rint)(c & 0xFF, cur_tty);
break;
case NOKEY: /* nothing there */
break;
case FKEY: /* function key, return string */
if (cp = get_fstr((u_int)c, (u_int *)&len)) {
while (len-- > 0)
(*linesw[cur_tty->t_line].l_rint)
(*cp++ & 0xFF, cur_tty);
}
break;
case MKEY: /* meta is active, prepend ESC */
(*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
(*linesw[cur_tty->t_line].l_rint)(c & 0xFF, cur_tty);
break;
}
}
/*
* Set line parameters
*/
int 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;
}
int pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
{
int i, error;
struct tty *tp;
frametype *fp;
scr_stat *scp;
tp = get_tty_ptr(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) */
scrn_blank_time = *(int*)data;
return 0;
case CONS_80x25TEXT: /* set 80x25 text mode */
if (!crtc_vga)
return ENXIO;
scp->mode = TEXT80x25;
scp->ysize = 25;
free(scp->scr_buf, M_DEVBUF);
scp->scr_buf = (u_short *)malloc(scp->xsize*scp->ysize*2,
M_DEVBUF, M_NOWAIT);
if (scp != cur_console)
scp->crt_base = scp->scr_buf;
set_mode(scp);
clear_screen(scp);
change_winsize(tp, scp->xsize, scp->ysize);
return 0;
case CONS_80x50TEXT: /* set 80x50 text mode */
if (!crtc_vga)
return ENXIO;
scp->mode = TEXT80x50;
scp->ysize = 50;
free(scp->scr_buf, M_DEVBUF);
scp->scr_buf = (u_short *)malloc(scp->xsize*scp->ysize*2,
M_DEVBUF, M_NOWAIT);
if (scp != cur_console)
scp->crt_base = scp->scr_buf;
set_mode(scp);
clear_screen(scp);
change_winsize(tp, scp->xsize, scp->ysize);
return 0;
case CONS_GETVERS: /* get version number */
*(int*)data = 0x103; /* version 1.3 */
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();
ptr->mv_col = scp->xpos;
ptr->mv_row = scp->ypos;
ptr->mv_csz = scp->xsize;
ptr->mv_rsz = scp->ysize;
ptr->mv_norm.fore = (scp->term.std_attr & 0x0f00)>>8;
ptr->mv_norm.back = (scp->term.std_attr & 0xf000)>>12;
ptr->mv_rev.fore = (scp->term.rev_attr & 0x0f00)>>8;
ptr->mv_rev.back = (scp->term.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 console */
for (i = 0; i < NCONS; i++) {
tp = VIRTUAL_TTY(i);
if (!(tp->t_state & TS_ISOPEN)) {
*data = i + 1;
return 0;
}
}
return EINVAL;
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_console)
return 0;
while ((error=tsleep((caddr_t)&scp->smode,
PZERO|PCATCH, "waitvt", 0)) == ERESTART) ;
}
else
while ((error=tsleep(
(caddr_t)&console[*(data-1)].smode,
PZERO|PCATCH, "waitvt", 0)) == ERESTART) ;
return error;
case VT_GETACTIVE:
*data = get_scr_num()+1;
return 0;
case KDENABIO: /* allow io operations */
fp = (frametype *)p->p_regs;
fp->eflags |= PSL_IOPL;
return 0;
case KDDISABIO: /* disallow io operations (default) */
fp = (frametype *)p->p_regs;
fp->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 ! */
if (crtc_vga) {
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
load_font(2, 14, font_8x14);
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 */
if (!crtc_vga)
return ENXIO;
scp->border = *data;
if (scp == cur_console)
set_border(scp->border);
return 0;
case KDSKBSTATE: /* set keyboard state (locks) */
if (*data >= 0 && *data <= LOCK_KEY_MASK) {
scp->status &= ~LOCK_KEY_MASK;
scp->status |= *data;
if (scp == cur_console)
update_leds(scp->status & LED_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 (*data & 0x80)
return EINVAL;
kbd_cmd2(KB_SETRAD, *data);
return 0;
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 */
if (scp == cur_console && scp->status == KBD_RAW_MODE)
shfts = ctls = alts = agrs = metas = 0;
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_console)
sysbeep(scp->bell_pitch, scp->bell_duration);
return 0;
case KIOCSOUND: /* make tone (*data) hz */
if (scp == cur_console) {
if (*(int*)data) {
int pitch = TIMER_FREQ/(*(int*)data);
/* enable counter 2 */
outb(0x61, inb(0x61) | 3);
/* set command for counter 2, 2 byte write */
outb(TIMER_MODE,
TIMER_SEL2|TIMER_16BIT|TIMER_SQWAVE);
/* set pitch */
outb(TIMER_CNTR2, pitch);
outb(TIMER_CNTR2, (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 */
if (*data >= 0 && *data <= LED_MASK) {
scp->status &= ~LED_MASK;
scp->status |= *data;
if (scp == cur_console)
update_leds(scp->status & LED_MASK);
return 0;
}
return EINVAL;
case KDGETLED: /* get keyboard LED status */
*data = scp->status & LED_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(scr_map));
return 0;
case PIO_SCRNMAP: /* set output translation table */
bcopy(data, &scr_map, sizeof(scr_map));
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 */
if (!crtc_vga)
return ENXIO;
bcopy(data, &font_8x8, sizeof(font_8x8));
load_font(1, 8, font_8x8);
return 0;
case GIO_FONT8x8: /* get 8x8 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(&font_8x8, data, sizeof(font_8x8));
return 0;
case PIO_FONT8x14: /* set 8x14 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(data, &font_8x14, sizeof(font_8x14));
load_font(2, 14, font_8x14);
return 0;
case GIO_FONT8x14: /* get 8x14 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(&font_8x14, data, sizeof(font_8x14));
return 0;
case PIO_FONT8x16: /* set 8x16 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(data, &font_8x16, sizeof(font_8x16));
load_font(0, 16, font_8x16);
return 0;
case GIO_FONT8x16: /* get 8x16 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(&font_8x16, data, sizeof(font_8x16));
return 0;
case CONSOLE_X_MODE_ON: /* just to be compatible */
if (saved_console < 0) {
saved_console = get_scr_num();
switch_scr(minor(dev));
fp = (frametype *)p->p_regs;
fp->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 = (frametype *)p->p_regs;
fp->eflags &= ~PSL_IOPL;
if (crtc_vga) {
load_font(0, 16, font_8x16);
load_font(1, 8, font_8x8);
load_font(2, 14, font_8x14);
load_palette();
}
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: /* more compatibility */
/*
* 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(TIMER_FREQ/((int*)data)[0],
((int*)data)[1]*hz/3000);
else
sysbeep(scp->bell_pitch, scp->bell_duration);
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);
}
void pcxint(dev_t dev)
{
struct tty *tp = get_tty_ptr(dev);
if (!tp)
return;
tp->t_state &= ~TS_BUSY;
if (tp->t_line)
(*linesw[tp->t_line].l_start)(tp);
else
pcstart(tp);
}
void pcstart(struct tty *tp)
{
#if defined(NetBSD)
struct clist *rbp;
int i, s, len;
u_char buf[PCBURST];
scr_stat *scp = get_scr_stat(tp->t_dev);
if (scp->status & SLKED)
return;
s = spltty();
if (!(tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP))) {
tp->t_state |= TS_BUSY;
splx(s);
rbp = &tp->t_outq;
len = q_to_b(rbp, buf, PCBURST);
for (i=0; i<len; i++)
if (buf[i]) ansi_put(scp, buf[i]);
s = spltty();
tp->t_state &= ~TS_BUSY;
if (rbp->c_cc) {
tp->t_state |= TS_TIMEOUT;
timeout((timeout_t)ttrstrt, (caddr_t)tp, 1);
}
if (rbp->c_cc <= tp->t_lowat) {
if (tp->t_state & TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup((caddr_t)rbp);
}
selwakeup(&tp->t_wsel);
}
}
splx(s);
#else /* __FreeBSD__ & __386BSD__ */
int c, s;
scr_stat *scp = get_scr_stat(tp->t_dev);
if (scp->status & SLKED)
return;
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);
tp->t_state |= TS_BUSY;
splx(s);
ansi_put(scp, c);
s = spltty();
tp->t_state &= ~TS_BUSY;
}
splx(s);
#endif
}
void pccnprobe(struct consdev *cp)
{
int maj;
/* locate the major number */
for (maj = 0; maj < nchrdev; maj++)
if ((void*)cdevsw[maj].d_open == (void*)pcopen)
break;
/* initialize required fields */
cp->cn_dev = makedev(maj, NCONS);
cp->cn_pri = CN_INTERNAL;
#if defined(__FreeBSD__) || defined(__386BSD__)
cp->cn_tp = CONSOLE_TTY;
#endif
}
void pccninit(struct consdev *cp)
{
scinit();
}
void pccnputc(dev_t dev, char c)
{
if (c == '\n')
scput('\r');
scput(c);
if (cur_console == &console[0]) {
int pos = cur_console->crtat - cur_console->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);
}
}
}
int pccngetc(dev_t dev)
{
int s = spltty(); /* block scintr while we poll */
int c = scgetc(0);
splx(s);
if (c == '\r') c = '\n';
return(c);
}
#if defined(FADE_SAVER)
static void scrn_saver(int test)
{
static int count = 0;
int i;
if (test) {
scrn_blanked = 1;
if (count < 64) {
outb(PIXMASK, 0xFF); /* no pixelmask */
outb(PALWADR, 0x00);
outb(PALDATA, 0);
outb(PALDATA, 0);
outb(PALDATA, 0);
for (i = 3; i < 768; i++) {
if (palette[i] - count > 15)
outb(PALDATA, palette[i]-count);
else
outb(PALDATA, 15);
}
inb(crtc_addr+6); /* reset flip/flop */
outb(ATC, 0x20); /* enable palette */
count++;
}
}
else {
count = scrn_blanked = 0;
load_palette();
}
}
#endif
#if defined(BLANK_SAVER)
u_char val;
if (test) {
scrn_blanked = 1;
outb(TSIDX, 0x01); val = inb(TSREG);
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
}
else {
scrn_blanked = 0;
outb(TSIDX, 0x01); val = inb(TSREG);
outb(TSIDX, 0x01); outb(TSREG, val & 0xDF);
}
#endif
#if defined(STAR_SAVER) || defined(SNAKE_SAVER)
static u_long rand_next = 1;
static int rand()
{
return ((rand_next = rand_next * 1103515245 + 12345) & 0x7FFFFFFF);
}
#endif
#if defined(STAR_SAVER)
/*
* Alternate saver that got its inspiration from a well known utility
* package for an unfamous OS.
*/
#define NUM_STARS 50
static void scrn_saver(int test)
{
scr_stat *scp = cur_console;
int cell, i;
char pattern[] = {"...........++++*** "};
char colors[] = {FG_DARKGREY, FG_LIGHTGREY,
FG_WHITE, FG_LIGHTCYAN};
static u_short stars[NUM_STARS][2];
if (test) {
if (!scrn_blanked) {
bcopy(Crtat, scp->scr_buf,
scp->xsize * scp->ysize * 2);
fillw((FG_LIGHTGREY|BG_BLACK)<<8 | scr_map[0x20], Crtat,
scp->xsize * scp->ysize);
set_border(0);
i = scp->ysize * scp->xsize + 5;
outb(crtc_addr, 14);
outb(crtc_addr+1, i >> 8);
outb(crtc_addr, 15);
outb(crtc_addr+1, i & 0xff);
scrn_blanked = 1;
for(i=0; i<NUM_STARS; i++) {
stars[i][0] =
rand() % (scp->xsize*scp->ysize);
stars[i][1] = 0;
}
}
cell = rand() % NUM_STARS;
*((u_short*)(Crtat + stars[cell][0])) =
scr_map[pattern[stars[cell][1]]] |
colors[rand()%sizeof(colors)] << 8;
if ((stars[cell][1]+=(rand()%4)) >= sizeof(pattern)-1) {
stars[cell][0] = rand() % (scp->xsize*scp->ysize);
stars[cell][1] = 0;
}
}
else {
if (scrn_blanked) {
bcopy(scp->scr_buf, Crtat, scp->xsize*scp->ysize*2);
cur_cursor_pos = -1;
set_border(scp->border);
scrn_blanked = 0;
}
}
}
#endif
#if defined(SNAKE_SAVER)
/*
* alternative screen saver for cards that do not like blanking
*/
static void scrn_saver(int test)
{
const char saves[] = {"FreeBSD"};
static u_char *savs[sizeof(saves)-1];
static int dirx, diry;
int f;
scr_stat *scp = cur_console;
if (test) {
if (!scrn_blanked) {
bcopy(Crtat, scp->scr_buf,
scp->xsize * scp->ysize * 2);
fillw((FG_LIGHTGREY|BG_BLACK)<<8 | scr_map[0x20],
Crtat, scp->xsize * scp->ysize);
set_border(0);
dirx = (scp->xpos ? 1 : -1);
diry = (scp->ypos ?
scp->xsize : -scp->xsize);
for (f=0; f< sizeof(saves)-1; f++)
savs[f] = (u_char *)Crtat + 2 *
(scp->xpos+scp->ypos*scp->xsize);
*(savs[0]) = scr_map[*saves];
f = scp->ysize * scp->xsize + 5;
outb(crtc_addr, 14);
outb(crtc_addr+1, f >> 8);
outb(crtc_addr, 15);
outb(crtc_addr+1, f & 0xff);
scrn_blanked = 1;
}
if (scrn_blanked++ < 4)
return;
scrn_blanked = 1;
*(savs[sizeof(saves)-2]) = scr_map[0x20];
for (f=sizeof(saves)-2; f > 0; f--)
savs[f] = savs[f-1];
f = (savs[0] - (u_char *)Crtat) / 2;
if ((f % scp->xsize) == 0 ||
(f % scp->xsize) == scp->xsize - 1 ||
(rand() % 50) == 0)
dirx = -dirx;
if ((f / scp->xsize) == 0 ||
(f / scp->xsize) == scp->ysize - 1 ||
(rand() % 20) == 0)
diry = -diry;
savs[0] += 2*dirx + 2*diry;
for (f=sizeof(saves)-2; f>=0; f--)
*(savs[f]) = scr_map[saves[f]];
}
else {
if (scrn_blanked) {
bcopy(scp->scr_buf, Crtat,
scp->xsize * scp->ysize * 2);
cur_cursor_pos = -1;
set_border(scp->border);
scrn_blanked = 0;
}
}
}
#endif
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);
}
#if !defined(FAT_CURSOR)
static void get_cursor_shape(int *start, int *end)
{
outb(crtc_addr, 10);
*start = inb(crtc_addr+1) & 0x1F;
outb(crtc_addr, 11);
*end = inb(crtc_addr+1) & 0x1F;
}
#endif
static void cursor_pos(int force)
{
int pos;
if (cur_console->status & UNKNOWN_MODE)
return;
if (scrn_blank_time && (time.tv_sec > scrn_time_stamp+scrn_blank_time))
scrn_saver(1);
pos = cur_console->crtat - cur_console->crt_base;
if (force || (!scrn_blanked && 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((timeout_t)cursor_pos, 0, hz/20);
}
static void clear_screen(scr_stat *scp)
{
move_crsr(scp, 0, 0);
fillw(scp->term.cur_attr | scr_map[0x20], scp->crt_base,
scp->xsize * scp->ysize);
}
static int switch_scr(u_int next_scr)
{
if (in_putc) { /* delay switch if in putc */
delayed_next_scr = next_scr+1;
return 0;
}
if (switch_in_progress &&
(cur_console->proc != pfind(cur_console->pid)))
switch_in_progress = 0;
if (next_scr >= NCONS || switch_in_progress) {
sysbeep(BELL_PITCH, BELL_DURATION);
return EINVAL;
}
/* is the wanted virtual console open ? */
if (next_scr) {
struct tty *tp = VIRTUAL_TTY(next_scr);
if (!(tp->t_state & TS_ISOPEN)) {
sysbeep(BELL_PITCH, BELL_DURATION);
return EINVAL;
}
}
switch_in_progress = 1;
old_scp = cur_console;
new_scp = &console[next_scr];
wakeup((caddr_t)&new_scp->smode);
if (new_scp == old_scp) {
switch_in_progress = 0;
return 0;
}
/* 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)
{
struct tty *tp;
bcopy(Crtat, old_scp->scr_buf, old_scp->xsize * old_scp->ysize * 2);
old_scp->crt_base = old_scp->scr_buf;
move_crsr(old_scp, old_scp->xpos, old_scp->ypos);
cur_console = new_scp;
set_mode(new_scp);
new_scp->crt_base = Crtat;
move_crsr(new_scp, new_scp->xpos, new_scp->ypos);
bcopy(new_scp->scr_buf, Crtat, new_scp->xsize * new_scp->ysize * 2);
update_leds(new_scp->status & LED_MASK);
if (old_scp->status & KBD_RAW_MODE || new_scp->status & KBD_RAW_MODE)
shfts = ctls = alts = agrs = metas = 0;
delayed_next_scr = 0;
}
static void move_crsr(scr_stat *scp, int x, int y)
{
if (x < 0 || y < 0 || x >= scp->xsize || y >= scp->ysize)
return;
scp->xpos = x;
scp->ypos = y;
scp->crtat = scp->crt_base + scp->ypos * scp->xsize + scp->xpos;
}
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;
u_short *src, *dst, count;
if (scp->term.esc == 1) {
switch (c) {
case '[': /* Start ESC [ sequence */
scp->term.esc = 2;
scp->term.last_param = -1;
for (i = scp->term.num_param; i < MAX_ESC_PAR; i++)
scp->term.param[i] = 1;
scp->term.num_param = 0;
return;
case 'M': /* Move cursor up 1 line, scroll if at top */
if (scp->ypos > 0)
move_crsr(scp, scp->xpos, scp->ypos - 1);
else {
move_up(scp->crt_base,
scp->crt_base + scp->xsize,
(scp->ysize - 1) * scp->xsize);
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crt_base, scp->xsize);
}
break;
#if notyet
case 'Q':
scp->term.esc = 4;
break;
#endif
case 'c': /* Clear screen & home */
clear_screen(scp);
break;
}
}
else if (scp->term.esc == 2) {
if (c >= '0' && c <= '9') {
if (scp->term.num_param < MAX_ESC_PAR) {
if (scp->term.last_param != scp->term.num_param) {
scp->term.last_param = scp->term.num_param;
scp->term.param[scp->term.num_param] = 0;
}
else
scp->term.param[scp->term.num_param] *= 10;
scp->term.param[scp->term.num_param] += c - '0';
return;
}
}
scp->term.num_param = scp->term.last_param + 1;
switch (c) {
case ';':
if (scp->term.num_param < MAX_ESC_PAR)
return;
break;
case '=':
scp->term.esc = 3;
scp->term.last_param = -1;
for (i = scp->term.num_param; i < MAX_ESC_PAR; i++)
scp->term.param[i] = 1;
scp->term.num_param = 0;
return;
case 'A': /* up n rows */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos, scp->ypos - n);
break;
case 'B': /* down n rows */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos, scp->ypos + n);
break;
case 'C': /* right n columns */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos + n, scp->ypos);
break;
case 'D': /* left n columns */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos - n, scp->ypos);
break;
case 'E': /* cursor to start of line n lines down */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, 0, scp->ypos + n);
break;
case 'F': /* cursor to start of line n lines up */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, 0, scp->ypos - n);
break;
case 'f': /* System V consoles .. */
case 'H': /* Cursor move */
if (scp->term.num_param == 0)
move_crsr(scp, 0, 0);
else if (scp->term.num_param == 2)
move_crsr(scp, scp->term.param[1] - 1,
scp->term.param[0] - 1);
break;
case 'J': /* Clear all or part of display */
if (scp->term.num_param == 0)
n = 0;
else
n = scp->term.param[0];
switch (n) {
case 0: /* clear form cursor to end of display */
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crtat, scp->crt_base +
scp->xsize * scp->ysize -
scp->crtat);
break;
case 1: /* clear from beginning of display to cursor */
fillw(scp->term.cur_attr | scr_map[0x20],
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->term.num_param == 0)
n = 0;
else
n = scp->term.param[0];
switch (n) {
case 0: /* clear form cursor to end of line */
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crtat, scp->xsize - scp->xpos);
break;
case 1: /* clear from beginning of line to cursor */
fillw(scp->term.cur_attr|scr_map[0x20],
scp->crtat - (scp->xsize - scp->xpos),
(scp->xsize - scp->xpos) + 1);
break;
case 2: /* clear entire line */
fillw(scp->term.cur_attr|scr_map[0x20],
scp->crtat - (scp->xsize - scp->xpos),
scp->xsize);
break;
}
break;
case 'L': /* Insert n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->ysize - scp->ypos)
n = scp->ysize - scp->ypos;
src = scp->crt_base + scp->ypos * scp->xsize;
dst = src + n * scp->xsize;
count = scp->ysize - (scp->ypos + n);
move_up(src, dst, count * scp->xsize);
fillw(scp->term.cur_attr | scr_map[0x20], src,
n * scp->xsize);
break;
case 'M': /* Delete n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->ysize - scp->ypos)
n = scp->ysize - scp->ypos;
dst = scp->crt_base + scp->ypos * scp->xsize;
src = dst + n * scp->xsize;
count = scp->ysize - (scp->ypos + n);
move_down(src, dst, count * scp->xsize);
src = dst + count * scp->xsize;
fillw(scp->term.cur_attr | scr_map[0x20], src,
n * scp->xsize);
break;
case 'P': /* Delete n chars */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->xsize - scp->xpos)
n = scp->xsize - scp->xpos;
dst = scp->crtat;
src = dst + n;
count = scp->xsize - (scp->xpos + n);
move_down(src, dst, count);
src = dst + count;
fillw(scp->term.cur_attr | scr_map[0x20], src, n);
break;
case '@': /* Insert n chars */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->xsize - scp->xpos)
n = scp->xsize - scp->xpos;
src = scp->crtat;
dst = src + n;
count = scp->xsize - (scp->xpos + n);
move_up(src, dst, count);
fillw(scp->term.cur_attr | scr_map[0x20], src, n);
break;
case 'S': /* scroll up n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
bcopy(scp->crt_base + (scp->xsize * n),
scp->crt_base,
scp->xsize * (scp->ysize - n) *
sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crt_base + scp->xsize *
(scp->ysize - 1),
scp->xsize);
break;
case 'T': /* scroll down n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
bcopy(scp->crt_base,
scp->crt_base + (scp->xsize * n),
scp->xsize * (scp->ysize - n) *
sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20], scp->crt_base,
scp->xsize);
break;
case 'X': /* delete n characters in line */
n = scp->term.param[0]; if (n < 1) n = 1;
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crt_base + scp->xpos +
((scp->xsize*scp->ypos) * sizeof(u_short)), n);
break;
case 'Z': /* move n tabs backwards */
n = scp->term.param[0]; if (n < 1) n = 1;
if ((i = scp->xpos & 0xf8) == scp->xpos)
i -= 8*n;
else
i -= 8*(n-1);
if (i < 0)
i = 0;
move_crsr(scp, i, scp->ypos);
break;
case '`': /* move cursor to column n */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, n, scp->ypos);
break;
case 'a': /* move cursor n columns to the right */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos + n, scp->ypos);
break;
case 'd': /* move cursor to row n */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos, n);
break;
case 'e': /* move cursor n rows down */
n = scp->term.param[0]; if (n < 1) n = 1;
move_crsr(scp, scp->xpos, scp->ypos + n);
break;
case 'm': /* change attribute */
if (scp->term.num_param == 0)
n = 0;
else
n = scp->term.param[0];
switch (n) {
case 0: /* back to normal */
scp->term.cur_attr = scp->term.std_attr;
break;
case 1: /* highlight (bold) */
scp->term.cur_attr &= 0xFF00;
scp->term.cur_attr |= 0x0800;
break;
case 4: /* highlight (underline) */
scp->term.cur_attr &= 0x0F00;
scp->term.cur_attr |= 0x0800;
break;
case 5: /* blink */
scp->term.cur_attr &= 0xFF00;
scp->term.cur_attr |= 0x8000;
break;
case 7: /* reverse video */
scp->term.cur_attr = scp->term.rev_attr;
break;
case 30: case 31: case 32: case 33: /* set fg color */
case 34: case 35: case 36: case 37:
scp->term.cur_attr = (scp->term.cur_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->term.cur_attr = (scp->term.cur_attr & 0x0FFF)
| (ansi_col[(n - 40) & 7] << 12);
break;
}
break;
case 'x':
if (scp->term.num_param == 0)
n = 0;
else
n = scp->term.param[0];
switch (n) {
case 0: /* reset attributes */
scp->term.cur_attr = scp->term.std_attr =
current_default->std_attr;
scp->term.rev_attr = current_default->rev_attr;
break;
case 1: /* set ansi background */
scp->term.cur_attr = scp->term.std_attr =
(scp->term.std_attr & 0x0F00) |
(ansi_col[(scp->term.param[1])&0x0F]<<12);
break;
case 2: /* set ansi foreground */
scp->term.cur_attr = scp->term.std_attr =
(scp->term.std_attr & 0xF000) |
(ansi_col[(scp->term.param[1])&0x0F]<<8);
break;
case 3: /* set ansi attribute directly */
scp->term.cur_attr = scp->term.std_attr =
(scp->term.param[1]&0xFF)<<8;
break;
case 5: /* set ansi reverse video background */
scp->term.rev_attr =
(scp->term.rev_attr & 0x0F00) |
(ansi_col[(scp->term.param[1])&0x0F]<<12);
break;
case 6: /* set ansi reverse video foreground */
scp->term.rev_attr =
(scp->term.rev_attr & 0xF000) |
(ansi_col[(scp->term.param[1])&0x0F]<<8);
break;
case 7: /* set ansi reverse video directly */
scp->term.rev_attr = (scp->term.param[1]&0xFF)<<8;
break;
}
break;
case 'z': /* switch to (virtual) console n */
if (scp->term.num_param == 1)
switch_scr(scp->term.param[0]);
break;
}
}
else if (scp->term.esc == 3) {
if (c >= '0' && c <= '9') {
if (scp->term.num_param < MAX_ESC_PAR) {
if (scp->term.last_param != scp->term.num_param) {
scp->term.last_param = scp->term.num_param;
scp->term.param[scp->term.num_param] = 0;
}
else
scp->term.param[scp->term.num_param] *= 10;
scp->term.param[scp->term.num_param] += c - '0';
return;
}
}
scp->term.num_param = scp->term.last_param + 1;
switch (c) {
case ';':
if (scp->term.num_param < MAX_ESC_PAR)
return;
break;
case 'A': /* set display border color */
if (scp->term.num_param == 1)
scp->border=scp->term.param[0] & 0xff;
if (scp == cur_console)
set_border(scp->border);
break;
case 'B': /* set bell pitch and duration */
if (scp->term.num_param == 2) {
scp->bell_pitch = scp->term.param[0];
scp->bell_duration = scp->term.param[1]*10;
}
break;
case 'C': /* set cursor shape (start & end line) */
if (scp->term.num_param == 2) {
scp->cursor_start = scp->term.param[0] & 0x1F;
scp->cursor_end = scp->term.param[1] & 0x1F;
if (scp == cur_console)
cursor_shape(scp->cursor_start,
scp->cursor_end);
}
break;
case 'F': /* set ansi foreground */
if (scp->term.num_param == 1)
scp->term.cur_attr = scp->term.std_attr =
(scp->term.std_attr & 0xF000)
| ((scp->term.param[0] & 0x0F) << 8);
break;
case 'G': /* set ansi background */
if (scp->term.num_param == 1)
scp->term.cur_attr = scp->term.std_attr =
(scp->term.std_attr & 0x0F00)
| ((scp->term.param[0] & 0x0F) << 12);
break;
case 'H': /* set ansi reverse video foreground */
if (scp->term.num_param == 1)
scp->term.rev_attr =
(scp->term.rev_attr & 0xF000)
| ((scp->term.param[0] & 0x0F) << 8);
break;
case 'I': /* set ansi reverse video background */
if (scp->term.num_param == 1)
scp->term.rev_attr =
(scp->term.rev_attr & 0x0F00)
| ((scp->term.param[0] & 0x0F) << 12);
break;
}
}
scp->term.esc = 0;
}
static void ansi_put(scr_stat *scp, u_char c)
{
if (scp->status & UNKNOWN_MODE)
return;
/* make screensaver happy */
if (scp == cur_console) {
scrn_time_stamp = time.tv_sec;
if (scrn_blanked)
scrn_saver(0);
}
in_putc++;
if (scp->term.esc)
scan_esc(scp, c);
else switch(c) {
case 0x1B: /* start escape sequence */
scp->term.esc = 1;
scp->term.num_param = 0;
break;
case 0x07:
if (scp == cur_console)
sysbeep(scp->bell_pitch, scp->bell_duration);
break;
case '\t': /* non-destructive tab */
scp->crtat += (8 - scp->xpos % 8);
scp->xpos += (8 - scp->xpos % 8);
break;
case '\b': /* non-destructive backspace */
if (scp->crtat > scp->crt_base) {
scp->crtat--;
if (scp->xpos > 0)
scp->xpos--;
else {
scp->xpos += scp->xsize - 1;
scp->ypos--;
}
}
break;
case '\r': /* return to pos 0 */
move_crsr(scp, 0, scp->ypos);
break;
case '\n': /* newline, same pos */
scp->crtat += scp->xsize;
scp->ypos++;
break;
case '\f': /* form feed, clears screen */
clear_screen(scp);
break;
default:
/* Print only printables */
*scp->crtat = (scp->term.cur_attr | scr_map[c]);
scp->crtat++;
if (++scp->xpos >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
}
break;
}
if (scp->crtat >= scp->crt_base + scp->ysize * scp->xsize) {
bcopy(scp->crt_base + scp->xsize, scp->crt_base,
scp->xsize * (scp->ysize - 1) * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->crt_base + scp->xsize * (scp->ysize - 1),
scp->xsize);
scp->crtat -= scp->xsize;
scp->ypos--;
}
in_putc--;
if (delayed_next_scr)
switch_scr(delayed_next_scr - 1);
}
static void scinit(void)
{
u_short volatile *cp = Crtat + (CGA_BUF-MONO_BUF)/sizeof(u_short), was;
unsigned cursorat;
int i;
/*
* catch that once in a blue moon occurence when scinit is called
* TWICE, adding the CGA_BUF offset again -> poooff
*/
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;
/* is this a VGA or higher ? */
outb(crtc_addr, 7);
if (inb(crtc_addr) == 7)
crtc_vga = 1;
current_default = &user_default;
console[0].crtat = crtat;
console[0].crt_base = Crtat;
console[0].term.esc = 0;
console[0].term.std_attr = current_default->std_attr;
console[0].term.rev_attr = current_default->rev_attr;
console[0].term.cur_attr = current_default->std_attr;
console[0].xpos = cursorat % COL;
console[0].ypos = cursorat / COL;
console[0].border = BG_BLACK;;
console[0].xsize = COL;
console[0].ysize = ROW;
console[0].status = 0;
console[0].pid = 0;
console[0].proc = NULL;
console[0].smode.mode = VT_AUTO;
console[0].bell_pitch = BELL_PITCH;
console[0].bell_duration = BELL_DURATION;
kernel_console.esc = 0;
kernel_console.std_attr = kernel_default.std_attr;
kernel_console.rev_attr = kernel_default.rev_attr;
kernel_console.cur_attr = kernel_default.std_attr;
/* initialize mapscrn array to a one to one map */
for (i=0; i<sizeof(scr_map); i++)
scr_map[i] = i;
clear_screen(&console[0]);
}
static void scput(u_char c)
{
scr_stat *scp = &console[0];
term_stat save;
if (crtat == 0)
scinit();
save = scp->term;
scp->term = kernel_console;
current_default = &kernel_default;
ansi_put(scp, c);
kernel_console = scp->term;
current_default = &user_default;
scp->term = save;
}
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 void update_leds(int which)
{
static u_char xlate_leds[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
kbd_cmd2(KB_SETLEDS, xlate_leds[which & LED_MASK]);
}
/*
* scgetc(noblock) : get a character from the keyboard.
* If noblock = 0 wait until a key is gotten. Otherwise return NOKEY.
*/
u_int scgetc(int noblock)
{
u_char val, code, release;
u_int state, action;
struct key_t *key;
static u_char esc_flag = 0, compose = 0;
static u_int chr = 0;
next_code:
kbd_wait();
/* First see if there is something in the keyboard port */
if (inb(KB_STAT) & KB_BUF_FULL)
val = inb(KB_DATA);
else if (noblock)
return(NOKEY);
else
goto next_code;
if (cur_console->status & KBD_RAW_MODE)
return val;
code = val & 0x7F;
release = val & 0x80;
switch (esc_flag) {
case 0x00: /* normal scancode */
switch(code) {
case 0x38: /* left alt (compose key) */
if (release && compose) {
compose = 0;
if (chr > 255) {
sysbeep(BELL_PITCH, BELL_DURATION);
chr = 0;
}
}
else {
if (!compose) {
compose = 1;
chr = 0;
}
}
break;
case 0x60:
case 0x61:
esc_flag = code;
goto next_code;
}
break;
case 0x60: /* 0xE0 prefix */
esc_flag = 0;
switch (code) {
case 0x1c: /* right enter key */
code = 0x59;
break;
case 0x1d: /* right ctrl key */
code = 0x5a;
break;
case 0x35: /* keypad divide key */
code = 0x5b;
break;
case 0x37: /* print scrn key */
code = 0x5c;
break;
case 0x38: /* right alt key (alt gr) */
code = 0x5d;
break;
case 0x47: /* grey home key */
code = 0x5e;
break;
case 0x48: /* grey up arrow key */
code = 0x5f;
break;
case 0x49: /* grey page up key */
code = 0x60;
break;
case 0x4b: /* grey left arrow key */
code = 0x61;
break;
case 0x4d: /* grey right arrow key */
code = 0x62;
break;
case 0x4f: /* grey end key */
code = 0x63;
break;
case 0x50: /* grey down arrow key */
code = 0x64;
break;
case 0x51: /* grey page down key */
code = 0x65;
break;
case 0x52: /* grey insert key */
code = 0x66;
break;
case 0x53: /* grey delete key */
code = 0x67;
break;
default: /* ignore everything else */
goto next_code;
}
break;
case 0x61: /* 0xE1 prefix */
esc_flag = 0;
if (code == 0x1D)
esc_flag = 0x1D;
goto next_code;
/* NOT REACHED */
case 0x1D: /* pause / break */
esc_flag = 0;
if (code != 0x45)
goto next_code;
code = 0x68;
break;
}
if (compose) {
switch (code) {
case 0x47:
case 0x48: /* keypad 7,8,9 */
case 0x49:
if (!release)
chr = (code - 0x40) + chr*10;
goto next_code;
case 0x4b:
case 0x4c: /* keypad 4,5,6 */
case 0x4d:
if (!release)
chr = (code - 0x47) + chr*10;
goto next_code;
case 0x4f:
case 0x50: /* keypad 1,2,3 */
case 0x51:
if (!release)
chr = (code - 0x4e) + chr*10;
goto next_code;
case 0x52: /* keypad 0 */
if (!release)
chr *= 10;
goto next_code;
case 0x38: /* left alt key */
break;
default:
if (chr) {
compose = chr = 0;
sysbeep(BELL_PITCH, BELL_DURATION);
goto next_code;
}
break;
}
}
state = (shfts ? 1 : 0 ) | (2 * (ctls ? 1 : 0)) | (4 * (alts ? 1 : 0));
if ((!agrs && (cur_console->status & ALKED))
|| (agrs && !(cur_console->status & ALKED)))
code += ALTGR_OFFSET;
key = &key_map.key[code];
if ( ((key->flgs & FLAG_LOCK_C) && (cur_console->status & CLKED))
|| ((key->flgs & FLAG_LOCK_N) && (cur_console->status & NLKED)) )
state ^= 1;
/* Check for make/break */
action = key->map[state];
if (release) { /* key released */
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;
case NLK:
nlkcnt = 0;
break;
case CLK:
clkcnt = 0;
break;
case SLK:
slkcnt = 0;
break;
case ASH:
agrs = 0;
break;
case ALK:
alkcnt = 0;
break;
case META:
metas = 0;
break;
}
}
if (chr && !compose) {
action = chr;
chr = 0;
return(action);
}
} else {
/* key pressed */
if (key->spcl & (0x80>>state)) {
switch (action) {
/* LOCKING KEYS */
case NLK:
if (!nlkcnt) {
nlkcnt++;
if (cur_console->status & NLKED)
cur_console->status &= ~NLKED;
else
cur_console->status |= NLKED;
update_leds(cur_console->status & LED_MASK);
}
break;
case CLK:
if (!clkcnt) {
clkcnt++;
if (cur_console->status & CLKED)
cur_console->status &= ~CLKED;
else
cur_console->status |= CLKED;
update_leds(cur_console->status & LED_MASK);
}
break;
case SLK:
if (!slkcnt) {
slkcnt++;
if (cur_console->status & SLKED) {
cur_console->status &= ~SLKED;
pcstart(VIRTUAL_TTY(get_scr_num()));
}
else
cur_console->status |= SLKED;
update_leds(cur_console->status & LED_MASK);
}
break;
case ALK:
if (!alkcnt) {
alkcnt++;
if (cur_console->status & ALKED)
cur_console->status &= ~ALKED;
else
cur_console->status |= ALKED;
}
break;
/* NON-LOCKING KEYS */
case NOP:
break;
case RBT:
#if defined(__FreeBSD__)
shutdown_nice();
#else
cpu_reset();
#endif
break;
case DBG:
#if DDB > 0 /* try to switch to console 0 */
if (cur_console->smode.mode == VT_AUTO &&
console[0].smode.mode == VT_AUTO)
switch_scr(0);
Debugger("manual escape to debugger");
return(NOKEY);
#else
printf("No debugger in kernel\n");
#endif
break;
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;
case ASH:
agrs = 1;
break;
case META:
metas = 1;
break;
case NEXT:
switch_scr((get_scr_num()+1)%NCONS);
break;
default:
if (action >= F_SCR && action <= L_SCR) {
switch_scr(action - F_SCR);
break;
}
if (action >= F_FN && action <= L_FN)
action |= FKEY;
return(action);
}
}
else {
if (metas)
action |= MKEY;
return(action);
}
}
goto next_code;
}
int getchar(void)
{
u_char thechar;
int s;
polling = 1;
s = splhigh();
scput('>');
thechar = (u_char) scgetc(0);
polling = 0;
splx(s);
switch (thechar) {
default:
if (thechar >= scr_map[0x20])
scput(thechar);
return(thechar);
case cr:
case lf:
scput(cr); scput(lf);
return(lf);
case bs:
case del:
scput(bs); scput(scr_map[0x20]); scput(bs);
return(thechar);
case cntld:
scput('^'); scput('D'); scput('\r'); scput('\n');
return(0);
}
}
u_int sgetc(int noblock)
{
return (scgetc(noblock) & 0xff);
}
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<1000; i++) { /* up to 10 msec */
if ((inb(KB_STAT) & KB_READY) == 0)
break;
DELAY (10);
}
}
static void kbd_cmd(u_char command)
{
kbd_wait();
outb(KB_DATA, command);
}
static void kbd_cmd2(u_char command, u_char arg)
{
int r, s = spltty();
do {
kbd_cmd(command);
r = kbd_reply();
if (r == KB_ACK) {
kbd_cmd(arg & 0x7f);
r = kbd_reply();
}
} while (r != KB_ACK);
splx(s);
}
static int kbd_reply()
{
int i;
kbd_wait();
for (i=0; i<50000; i++) { /* at least 300 msec, 500 msec enough */
if (inb(KB_STAT) & KB_BUF_FULL)
return ((u_char) inb(KB_DATA));
DELAY (10);
}
return(-1);
}
static void set_mode(scr_stat *scp)
{
u_char byte;
int s;
if (scp != cur_console)
return;
/* (re)activate cursor */
untimeout((timeout_t)cursor_pos, 0);
cursor_pos(1);
/* change cursor type if set */
if (scp->cursor_start != -1 && scp->cursor_end != -1)
cursor_shape(scp->cursor_start, scp->cursor_end);
/* mode change only on VGA's */
if (!crtc_vga)
return;
/* setup video hardware for the given mode */
s = splhigh();
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:
break;
}
splx(s);
/* set border color for this (virtual) console */
set_border(scp->border);
return;
}
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 void load_font(int segment, int size, char* font)
{
int ch, line, s;
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) */
s = splhigh();
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 */
splx(s);
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 */
s = splhigh();
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 */
}
splx(s);
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 void 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 */
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