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dd2590866a
freebsd-skq/sys/dev/syscons/syscons.c
bde dd2590866a Don't allow i/o operations for non-root users. 
Add prototypes.
1995-10-14 07:08:09 +00:00

3109 lines
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/*-
* Copyright (c) 1992-1995 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $Id: syscons.c,v 1.125 1995/09/10 21:35:12 bde Exp $
*/
#include "sc.h"
#include "apm.h"
#if NSC > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/devconf.h>
#include <machine/clock.h>
#include <machine/cons.h>
#include <machine/console.h>
#include <machine/psl.h>
#include <machine/frame.h>
#include <machine/pc/display.h>
#include <machine/apm_bios.h>
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
#include <i386/isa/timerreg.h>
#include <i386/isa/kbdtables.h>
#include <i386/isa/syscons.h>
#if !defined(MAXCONS)
#define MAXCONS 16
#endif
/* this may break on older VGA's but is usefull on real 32 bit systems */
#define bcopyw bcopy
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 main_console;
static scr_stat *console[MAXCONS];
scr_stat *cur_console;
static scr_stat *new_scp, *old_scp;
static term_stat kernel_console;
static default_attr *current_default;
static char init_done = FALSE;
static int configuration = 0;
static char switch_in_progress = FALSE;
static char blink_in_progress = FALSE;
static char write_in_progress = FALSE;
u_int crtc_addr = MONO_BASE;
static char crtc_vga = FALSE;
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 *font_8 = NULL, *font_14 = NULL, *font_16 = NULL;
static int fonts_loaded = 0;
char palette[3*256];
static const u_int n_fkey_tab = sizeof(fkey_tab) / sizeof(*fkey_tab);
static int delayed_next_scr = FALSE;
static long scrn_blank_time = 0; /* screen saver timeout value */
int scrn_blanked = FALSE; /* screen saver active flag */
static int scrn_saver = 0; /* screen saver routine */
static long scrn_time_stamp;
u_char scr_map[256];
static char *video_mode_ptr = NULL;
#if ASYNCH
static u_char kbd_reply = 0;
#endif
static u_short mouse_and_mask[16] = {
0xc000, 0xe000, 0xf000, 0xf800, 0xfc00, 0xfe00, 0xff00, 0xff80,
0xfe00, 0x1e00, 0x1f00, 0x0f00, 0x0f00, 0x0000, 0x0000, 0x0000
};
static u_short mouse_or_mask[16] = {
0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800,
0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
};
extern void none_saver(int blank);
void none_saver(int blank) { }
void (*current_saver) __P((int blank)) = none_saver;
/* OS specific stuff */
#ifdef not_yet_done
#define VIRTUAL_TTY(x) (sccons[x] = ttymalloc(sccons[x]))
struct CONSOLE_TTY (sccons[MAXCONS] = ttymalloc(sccons[MAXCONS]))
struct tty *sccons[MAXCONS+1];
#else
#define VIRTUAL_TTY(x) &sccons[x]
#define CONSOLE_TTY &sccons[MAXCONS]
struct tty sccons[MAXCONS+1];
int nsccons = MAXCONS+1;
#endif
#define MONO_BUF pa_to_va(0xB0000)
#define CGA_BUF pa_to_va(0xB8000)
u_short *Crtat;
#define WRAPHIST(scp, pointer, offset)\
((scp->history) + ((((pointer) - (scp->history)) + (scp->history_size)\
+ (offset)) % (scp->history_size)))
struct isa_driver scdriver = {
scprobe, scattach, "sc", 1
};
static d_open_t scopen;
static d_close_t scclose;
static d_rdwr_t scread;
static d_rdwr_t scwrite;
static d_ioctl_t scioctl;
static d_ttycv_t scdevtotty;
static d_mmap_t scmmap;
static struct cdevsw scdevsw = {
scopen, scclose, scread, scwrite,
scioctl, nullstop, noreset, scdevtotty,
ttselect, scmmap, nostrategy,
};
int
scprobe(struct isa_device *dev)
{
int i, retries = 5;
unsigned char val;
/* Enable interrupts and keyboard controller */
kbd_wait();
outb(KB_STAT, KB_WRITE);
kbd_wait();
outb(KB_DATA, KB_MODE);
/* flush any noise in the buffer */
while (inb(KB_STAT) & KB_BUF_FULL) {
DELAY(10);
(void) inb(KB_DATA);
}
/* Reset keyboard hardware */
while (retries--) {
kbd_wait();
outb(KB_DATA, KB_RESET);
for (i=0; i<100000; i++) {
DELAY(10);
val = inb(KB_DATA);
if (val == KB_ACK || val == KB_ECHO)
goto gotres;
if (val == KB_RESEND)
break;
}
}
gotres:
if (!retries)
printf("scprobe: keyboard won't accept RESET command\n");
else {
gotack:
DELAY(10);
while ((inb(KB_STAT) & KB_BUF_FULL) == 0) DELAY(10);
DELAY(10);
val = inb(KB_DATA);
if (val == KB_ACK)
goto gotack;
if (val != KB_RESET_DONE)
printf("scprobe: keyboard RESET failed %02x\n", val);
}
#ifdef XT_KEYBOARD
kbd_wait();
outb(KB_DATA, 0xF0);
kbd_wait();
outb(KB_DATA, 1);
kbd_wait();
#endif /* XT_KEYBOARD */
return (IO_KBDSIZE);
}
static struct kern_devconf kdc_sc[NSC] = {
0, 0, 0, /* filled in by dev_attach */
"sc", 0, { MDDT_ISA, 0, "tty" },
isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
&kdc_isa0, /* parent */
0, /* parentdata */
DC_BUSY, /* the console is almost always busy */
"Graphics console",
DC_CLS_DISPLAY /* class */
};
static inline void
sc_registerdev(struct isa_device *id)
{
if(id->id_unit)
kdc_sc[id->id_unit] = kdc_sc[0];
kdc_sc[id->id_unit].kdc_unit = id->id_unit;
kdc_sc[id->id_unit].kdc_isa = id;
dev_attach(&kdc_sc[id->id_unit]);
}
#if NAPM > 0
static int
scresume(void *dummy)
{
shfts = 0;
ctls = 0;
alts = 0;
agrs = 0;
metas = 0;
return 0;
}
#endif
int
scattach(struct isa_device *dev)
{
scr_stat *scp;
scinit();
configuration = dev->id_flags;
scp = console[0];
if (crtc_vga) {
font_8 = (char *)malloc(8*256, M_DEVBUF, M_NOWAIT);
font_14 = (char *)malloc(14*256, M_DEVBUF, M_NOWAIT);
font_16 = (char *)malloc(16*256, M_DEVBUF, M_NOWAIT);
copy_font(SAVE, FONT_16, font_16);
fonts_loaded = FONT_16;
scp->font = FONT_16;
save_palette();
}
scp->scr_buf = (u_short *)malloc(scp->xsize*scp->ysize*sizeof(u_short),
M_DEVBUF, M_NOWAIT);
/* copy screen to buffer */
bcopyw(Crtat, scp->scr_buf, scp->xsize * scp->ysize * sizeof(u_short));
scp->cursor_pos = scp->scr_buf + scp->xpos + scp->ypos * scp->xsize;
scp->mouse_pos = scp->scr_buf;
/* initialize history buffer & pointers */
scp->history_head = scp->history_pos = scp->history =
(u_short *)malloc(scp->history_size*sizeof(u_short),
M_DEVBUF, M_NOWAIT);
bzero(scp->history_head, scp->history_size*sizeof(u_short));
/* initialize cursor stuff */
draw_cursor(scp, TRUE);
if (crtc_vga && (configuration & CHAR_CURSOR))
set_destructive_cursor(scp, TRUE);
/* get screen update going */
scrn_timer();
update_leds(scp->status);
sc_registerdev(dev);
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");
printf(" <%d virtual consoles, flags=0x%x>\n", MAXCONS, configuration);
#if NAPM > 0
scp->r_hook.ah_fun = scresume;
scp->r_hook.ah_arg = NULL;
scp->r_hook.ah_name = "system keyboard";
scp->r_hook.ah_order = APM_MID_ORDER;
apm_hook_establish(APM_HOOK_RESUME , &scp->r_hook);
#endif
register_cdev("sc", &scdevsw);
return 0;
}
struct tty
*scdevtotty(dev_t dev)
{
int unit = minor(dev);
if (unit > MAXCONS || unit < 0)
return(NULL);
if (unit == MAXCONS)
return CONSOLE_TTY;
return VIRTUAL_TTY(unit);
}
static scr_stat
*get_scr_stat(dev_t dev)
{
int unit = minor(dev);
if (unit > MAXCONS || unit < 0)
return(NULL);
if (unit == MAXCONS)
return console[0];
return console[unit];
}
static int
get_scr_num()
{
int i = 0;
while ((i < MAXCONS) && (cur_console != console[i]))
i++;
return i < MAXCONS ? i : 0;
}
int
scopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = scdevtotty(dev);
if (!tp)
return(ENXIO);
tp->t_oproc = scstart;
tp->t_param = scparam;
tp->t_dev = dev;
if (!(tp->t_state & TS_ISOPEN)) {
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;
scparam(tp, &tp->t_termios);
ttsetwater(tp);
(*linesw[tp->t_line].l_modem)(tp, 1);
}
else
if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0)
return(EBUSY);
if (!console[minor(dev)])
console[minor(dev)] = alloc_scp();
return((*linesw[tp->t_line].l_open)(dev, tp));
}
int
scclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct tty *tp = scdevtotty(dev);
struct scr_stat *scp;
if (!tp)
return(ENXIO);
if (minor(dev) < MAXCONS) {
scp = get_scr_stat(tp->t_dev);
if (scp->status & SWITCH_WAIT_ACQ)
wakeup((caddr_t)&scp->smode);
#if not_yet_done
if (scp == &main_console) {
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
}
else {
free(scp->scr_buf, M_DEVBUF);
free(scp->history, M_DEVBUF);
free(scp, M_DEVBUF);
console[minor(dev)] = NULL;
}
#else
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
#endif
}
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
return(0);
}
int
scread(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = scdevtotty(dev);
if (!tp)
return(ENXIO);
return((*linesw[tp->t_line].l_read)(tp, uio, flag));
}
int
scwrite(dev_t dev, struct uio *uio, int flag)
{
struct tty *tp = scdevtotty(dev);
if (!tp)
return(ENXIO);
return((*linesw[tp->t_line].l_write)(tp, uio, flag));
}
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) {
(*current_saver)(FALSE);
cur_console->start = 0;
cur_console->end = cur_console->xsize * cur_console->ysize;
}
c = scgetc(1);
cur_tty = VIRTUAL_TTY(get_scr_num());
if (!(cur_tty->t_state & TS_ISOPEN))
if (!((cur_tty = CONSOLE_TTY)->t_state & TS_ISOPEN))
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;
case BKEY: /* backtab fixed sequence (esc [ Z) */
(*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
(*linesw[cur_tty->t_line].l_rint)('[', cur_tty);
(*linesw[cur_tty->t_line].l_rint)('Z', cur_tty);
break;
}
}
int
scparam(struct tty *tp, struct termios *t)
{
tp->t_ispeed = t->c_ispeed;
tp->t_ospeed = t->c_ospeed;
tp->t_cflag = t->c_cflag;
return 0;
}
int
scioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
{
int i, error;
struct tty *tp;
struct trapframe *fp;
scr_stat *scp;
tp = scdevtotty(dev);
if (!tp)
return ENXIO;
scp = get_scr_stat(tp->t_dev);
switch (cmd) { /* process console hardware related ioctl's */
case GIO_ATTR: /* get current attributes */
*(int*)data = scp->term.cur_attr;
return 0;
case GIO_COLOR: /* is this a color console ? */
if (crtc_addr == COLOR_BASE)
*(int*)data = 1;
else
*(int*)data = 0;
return 0;
case CONS_CURRENT: /* get current adapter type */
if (crtc_vga)
*(int*)data = KD_VGA;
else
if (crtc_addr == MONO_BASE)
*(int*)data = KD_MONO;
else
*(int*)data = KD_CGA;
return 0;
case CONS_GET: /* get current video mode */
*(int*)data = scp->mode;
return 0;
case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */
scrn_blank_time = *(int*)data;
return 0;
case CONS_CURSORTYPE: /* set cursor type blink/noblink */
if ((*(int*)data) & 0x01)
configuration |= BLINK_CURSOR;
else
configuration &= ~BLINK_CURSOR;
if ((*(int*)data) & 0x02) {
configuration |= CHAR_CURSOR;
set_destructive_cursor(scp, TRUE);
} else
configuration &= ~CHAR_CURSOR;
return 0;
case CONS_BELLTYPE: /* set bell type sound/visual */
if (*data)
configuration |= VISUAL_BELL;
else
configuration &= ~VISUAL_BELL;
return 0;
case CONS_HISTORY: /* set history size */
if (*data) {
free(scp->history, M_DEVBUF);
scp->history_size = *(int*)data;
if (scp->history_size < scp->ysize)
scp->history = NULL;
else {
scp->history_size *= scp->xsize;
scp->history_head = scp->history_pos = scp->history =
(u_short *)malloc(scp->history_size*sizeof(u_short),
M_DEVBUF, M_WAITOK);
bzero(scp->history_head, scp->history_size*sizeof(u_short));
}
return 0;
}
else
return EINVAL;
case CONS_MOUSECTL: /* control mouse arrow */
{
mouse_info_t *mouse = (mouse_info_t*)data;
int fontsize;
switch (scp->font) {
default:
case FONT_8:
fontsize = 8; break;
case FONT_14:
fontsize = 14; break;
case FONT_16:
fontsize = 16; break;
}
switch (mouse->operation) {
case MOUSE_SHOW:
if (!(scp->status & MOUSE_ENABLED)) {
scp->mouse_oldpos = Crtat + (scp->mouse_pos - scp->scr_buf);
scp->status |= (UPDATE_MOUSE | MOUSE_ENABLED);
}
else
return EINVAL;
break;
case MOUSE_HIDE:
if (scp->status & MOUSE_ENABLED) {
scp->status &= ~MOUSE_ENABLED;
scp->status |= UPDATE_MOUSE;
}
else
return EINVAL;
break;
case MOUSE_MOVEABS:
scp->mouse_xpos = mouse->x;
scp->mouse_ypos = mouse->y;
goto set_mouse_pos;
case MOUSE_MOVEREL:
scp->mouse_xpos += mouse->x;
scp->mouse_ypos += mouse->y;
set_mouse_pos:
if (scp->mouse_xpos < 0)
scp->mouse_xpos = 0;
if (scp->mouse_ypos < 0)
scp->mouse_ypos = 0;
if (scp->mouse_xpos >= scp->xsize*8)
scp->mouse_xpos = (scp->xsize*8)-1;
if (scp->mouse_ypos >= scp->ysize*fontsize)
scp->mouse_ypos = (scp->ysize*fontsize)-1;
scp->mouse_pos = scp->scr_buf +
(scp->mouse_ypos/fontsize)*scp->xsize + scp->mouse_xpos/8;
if (scp->status & MOUSE_ENABLED)
scp->status |= UPDATE_MOUSE;
break;
case MOUSE_GETPOS:
mouse->x = scp->mouse_xpos;
mouse->y = scp->mouse_ypos;
return 0;
default:
return EINVAL;
}
/* make screensaver happy */
if (scp == cur_console) {
scrn_time_stamp = time.tv_sec;
if (scrn_blanked) {
(*current_saver)(FALSE);
cur_console->start = 0;
cur_console->end = cur_console->xsize * cur_console->ysize;
}
}
return 0;
}
case CONS_GETINFO: /* get current (virtual) console info */
{
vid_info_t *ptr = (vid_info_t*)data;
if (ptr->size == sizeof(struct vid_info)) {
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 CONS_GETVERS: /* get version number */
*(int*)data = 0x200; /* version 2.0 */
return 0;
/* VGA TEXT MODES */
case SW_VGA_C40x25:
case SW_VGA_C80x25: case SW_VGA_M80x25:
case SW_VGA_C80x30: case SW_VGA_M80x30:
case SW_VGA_C80x50: case SW_VGA_M80x50:
case SW_VGA_C80x60: case SW_VGA_M80x60:
case SW_B40x25: case SW_C40x25:
case SW_B80x25: case SW_C80x25:
case SW_ENH_B40x25: case SW_ENH_C40x25:
case SW_ENH_B80x25: case SW_ENH_C80x25:
case SW_ENH_B80x43: case SW_ENH_C80x43:
if (!crtc_vga || video_mode_ptr == NULL)
return ENXIO;
switch (cmd & 0xff) {
case M_VGA_C80x60: case M_VGA_M80x60:
if (!(fonts_loaded & FONT_8))
return EINVAL;
scp->xsize = 80;
scp->ysize = 60;
break;
case M_VGA_C80x50: case M_VGA_M80x50:
if (!(fonts_loaded & FONT_8))
return EINVAL;
scp->xsize = 80;
scp->ysize = 50;
break;
case M_ENH_B80x43: case M_ENH_C80x43:
if (!(fonts_loaded & FONT_8))
return EINVAL;
scp->xsize = 80;
scp->ysize = 43;
break;
case M_VGA_C80x30: case M_VGA_M80x30:
scp->xsize = 80;
scp->ysize = 30;
break;
default:
if ((cmd & 0xff) > M_VGA_CG320)
return EINVAL;
else
scp->xsize = *(video_mode_ptr+((cmd&0xff)*64));
scp->ysize = *(video_mode_ptr+((cmd&0xff)*64)+1)+1;
break;
}
scp->mode = cmd & 0xff;
scp->status &= ~UNKNOWN_MODE; /* text mode */
free(scp->scr_buf, M_DEVBUF);
scp->scr_buf = (u_short *)malloc(scp->xsize*scp->ysize*sizeof(u_short),
M_DEVBUF, M_WAITOK);
if (scp == cur_console)
set_mode(scp);
clear_screen(scp);
if (tp->t_winsize.ws_col != scp->xsize
|| tp->t_winsize.ws_row != scp->ysize) {
tp->t_winsize.ws_col = scp->xsize;
tp->t_winsize.ws_row = scp->ysize;
pgsignal(tp->t_pgrp, SIGWINCH, 1);
}
return 0;
/* GRAPHICS MODES */
case SW_BG320: case SW_BG640:
case SW_CG320: case SW_CG320_D: case SW_CG640_E:
case SW_CG640x350: case SW_ENH_CG640:
case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
if (!crtc_vga || video_mode_ptr == NULL)
return ENXIO;
scp->mode = cmd & 0xFF;
scp->status |= UNKNOWN_MODE; /* graphics mode */
scp->xsize = (*(video_mode_ptr + (scp->mode*64))) * 8;
scp->ysize = (*(video_mode_ptr + (scp->mode*64) + 1) + 1) *
(*(video_mode_ptr + (scp->mode*64) + 2));
set_mode(scp);
/* clear_graphics();*/
if (tp->t_winsize.ws_xpixel != scp->xsize
|| tp->t_winsize.ws_ypixel != scp->ysize) {
tp->t_winsize.ws_xpixel = scp->xsize;
tp->t_winsize.ws_ypixel = scp->ysize;
pgsignal(tp->t_pgrp, SIGWINCH, 1);
}
return 0;
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 = FALSE;
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 = FALSE;
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 = FALSE;
return 0;
}
return EINVAL;
default:
return EINVAL;
}
/* NOT REACHED */
case VT_OPENQRY: /* return free virtual console */
for (i = 0; i < MAXCONS; 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(scp, (*data) - 1);
case VT_WAITACTIVE: /* wait for switch to occur */
if (*data > MAXCONS || *data < 0)
return EINVAL;
if (minor(dev) == (*data) - 1)
return 0;
if (*data == 0) {
if (scp == cur_console)
return 0;
}
else
scp = console[(*data) - 1];
while ((error=tsleep((caddr_t)&scp->smode, PZERO|PCATCH,
"waitvt", 0)) == ERESTART) ;
return error;
case VT_GETACTIVE:
*data = get_scr_num()+1;
return 0;
case KDENABIO: /* allow io operations */
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return error;
fp = (struct trapframe *)p->p_md.md_regs;
fp->tf_eflags |= PSL_IOPL;
return 0;
case KDDISABIO: /* disallow io operations (default) */
fp = (struct trapframe *)p->p_md.md_regs;
fp->tf_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) {
if (fonts_loaded & FONT_8)
copy_font(LOAD, FONT_8, font_8);
if (fonts_loaded & FONT_14)
copy_font(LOAD, FONT_14, font_14);
if (fonts_loaded & FONT_16)
copy_font(LOAD, FONT_16, font_16);
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
load_palette();
}
/* FALL THROUGH */
case KD_TEXT1: /* switch to TEXT (known) mode */
/* no restore fonts & palette */
scp->status &= ~UNKNOWN_MODE;
if (crtc_vga && video_mode_ptr)
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);
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;
i = spltty();
kbd_cmd(KB_SETRAD);
kbd_cmd(*data);
splx(i);
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 (*(int*)data)
do_bell(scp, (*(int*)data)&0xffff,
(((*(int*)data)>>16)&0xffff)*hz/1000);
else
do_bell(scp, 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);
/* set command for counter 2, 2 byte write */
if (acquire_timer2(TIMER_16BIT|TIMER_SQWAVE))
return EBUSY;
/* set pitch */
outb(TIMER_CNTR2, pitch);
outb(TIMER_CNTR2, (pitch>>8));
/* enable counter 2 output to speaker */
outb(IO_PPI, inb(IO_PPI) | 3);
}
else {
/* disable counter 2 output to speaker */
outb(IO_PPI, inb(IO_PPI) & 0xFC);
release_timer2();
}
}
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);
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_8, 8*256);
fonts_loaded |= FONT_8;
copy_font(LOAD, FONT_8, font_8);
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
return 0;
case GIO_FONT8x8: /* get 8x8 dot font */
if (!crtc_vga)
return ENXIO;
if (fonts_loaded & FONT_8) {
bcopy(font_8, data, 8*256);
return 0;
}
else
return ENXIO;
case PIO_FONT8x14: /* set 8x14 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(data, font_14, 14*256);
fonts_loaded |= FONT_14;
copy_font(LOAD, FONT_14, font_14);
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
return 0;
case GIO_FONT8x14: /* get 8x14 dot font */
if (!crtc_vga)
return ENXIO;
if (fonts_loaded & FONT_14) {
bcopy(font_14, data, 14*256);
return 0;
}
else
return ENXIO;
case PIO_FONT8x16: /* set 8x16 dot font */
if (!crtc_vga)
return ENXIO;
bcopy(data, font_16, 16*256);
fonts_loaded |= FONT_16;
copy_font(LOAD, FONT_16, font_16);
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
return 0;
case GIO_FONT8x16: /* get 8x16 dot font */
if (!crtc_vga)
return ENXIO;
if (fonts_loaded & FONT_16) {
bcopy(font_16, data, 16*256);
return 0;
}
else
return ENXIO;
default:
break;
}
error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
if (error >= 0)
return(error);
error = ttioctl(tp, cmd, data, flag);
if (error >= 0)
return(error);
return(ENOTTY);
}
void
scstart(struct tty *tp)
{
struct clist *rbp;
int i, s, len;
u_char buf[PCBURST];
scr_stat *scp = get_scr_stat(tp->t_dev);
/* XXX who repeats the call when the above flags are cleared? */
if (scp->status & SLKED || blink_in_progress)
return;
s = spltty();
if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) {
tp->t_state |= TS_BUSY;
rbp = &tp->t_outq;
while (rbp->c_cc) {
len = q_to_b(rbp, buf, PCBURST);
splx(s);
ansi_put(scp, buf, len);
s = spltty();
}
tp->t_state &= ~TS_BUSY;
ttwwakeup(tp);
}
splx(s);
}
void
sccnprobe(struct consdev *cp)
{
struct isa_device *dvp;
int maj;
/*
* Take control if we are the highest priority enabled display device.
*/
dvp = find_display();
maj = getmajorbyname("sc");
if (dvp->id_driver != &scdriver || maj < 0) {
cp->cn_pri = CN_DEAD;
return;
}
/* initialize required fields */
cp->cn_dev = makedev(maj, MAXCONS);
cp->cn_pri = CN_INTERNAL;
}
void
sccninit(struct consdev *cp)
{
scinit();
}
void
sccnputc(dev_t dev, int c)
{
u_char buf[1];
scr_stat *scp = console[0];
term_stat save = scp->term;
scp->term = kernel_console;
current_default = &kernel_default;
if (scp->scr_buf == Crtat)
draw_cursor(scp, FALSE);
buf[0] = c;
ansi_put(scp, buf, 1);
kernel_console = scp->term;
current_default = &user_default;
scp->term = save;
if (scp == cur_console /* && scrn_timer not running */) {
if (scp->scr_buf != Crtat && (scp->start <= scp->end)) {
bcopyw(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
scp->start = scp->xsize * scp->ysize;
scp->end = 0;
scp->status &= ~CURSOR_SHOWN;
}
draw_cursor(scp, TRUE);
}
}
int
sccngetc(dev_t dev)
{
int s = spltty(); /* block scintr while we poll */
int c = scgetc(0);
splx(s);
return(c);
}
int
sccncheckc(dev_t dev)
{
return (scgetc(1) & 0xff);
}
static void
scrn_timer()
{
static int cursor_blinkrate;
scr_stat *scp = cur_console;
/* should we just return ? */
if ((scp->status&UNKNOWN_MODE) || blink_in_progress || switch_in_progress) {
timeout((timeout_func_t)scrn_timer, 0, hz/10);
return;
}
if (!scrn_blanked) {
/* update screen image */
if (scp->start <= scp->end) {
bcopyw(scp->scr_buf + scp->start, Crtat + scp->start,
(1 + scp->end - scp->start) * sizeof(u_short));
scp->status &= ~CURSOR_SHOWN;
scp->start = scp->xsize * scp->ysize;
scp->end = 0;
}
/* update "pseudo" mouse arrow */
if ((scp->status & MOUSE_ENABLED) && (scp->status & UPDATE_MOUSE))
draw_mouse_image(scp);
/* update cursor image */
if (scp->status & CURSOR_ENABLED)
draw_cursor(scp,
!(configuration&BLINK_CURSOR) || !(cursor_blinkrate++&0x04));
}
if (scrn_blank_time && (time.tv_sec>scrn_time_stamp+scrn_blank_time))
(*current_saver)(TRUE);
timeout((timeout_func_t)scrn_timer, 0, hz/25);
}
static void
clear_screen(scr_stat *scp)
{
move_crsr(scp, 0, 0);
fillw(scp->term.cur_attr | scr_map[0x20], scp->scr_buf,
scp->xsize * scp->ysize);
mark_all(scp);
}
static int
switch_scr(scr_stat *scp, u_int next_scr)
{
if (switch_in_progress && (cur_console->proc != pfind(cur_console->pid)))
switch_in_progress = FALSE;
if (next_scr >= MAXCONS || switch_in_progress ||
(cur_console->smode.mode == VT_AUTO
&& cur_console->status & UNKNOWN_MODE)) {
do_bell(scp, 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)) {
do_bell(scp, BELL_PITCH, BELL_DURATION);
return EINVAL;
}
}
/* delay switch if actively updating screen */
if (write_in_progress || blink_in_progress) {
delayed_next_scr = next_scr+1;
return 0;
}
switch_in_progress = TRUE;
old_scp = cur_console;
new_scp = console[next_scr];
wakeup((caddr_t)&new_scp->smode);
if (new_scp == old_scp) {
switch_in_progress = FALSE;
delayed_next_scr = FALSE;
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 = FALSE;
}
return 0;
}
static void
exchange_scr(void)
{
move_crsr(old_scp, old_scp->xpos, old_scp->ypos);
cur_console = new_scp;
if (old_scp->mode != new_scp->mode || (old_scp->status & UNKNOWN_MODE)){
if (crtc_vga && video_mode_ptr)
set_mode(new_scp);
}
move_crsr(new_scp, new_scp->xpos, new_scp->ypos);
if ((old_scp->status & UNKNOWN_MODE) && crtc_vga) {
if (fonts_loaded & FONT_8)
copy_font(LOAD, FONT_8, font_8);
if (fonts_loaded & FONT_14)
copy_font(LOAD, FONT_14, font_14);
if (fonts_loaded & FONT_16)
copy_font(LOAD, FONT_16, font_16);
if (configuration & CHAR_CURSOR)
set_destructive_cursor(new_scp, TRUE);
load_palette();
}
if (old_scp->status & KBD_RAW_MODE || new_scp->status & KBD_RAW_MODE)
shfts = ctls = alts = agrs = metas = 0;
update_leds(new_scp->status);
delayed_next_scr = FALSE;
bcopyw(new_scp->scr_buf, Crtat,
(new_scp->xsize*new_scp->ysize)*sizeof(u_short));
new_scp->status &= ~CURSOR_SHOWN;
}
static inline 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;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->cursor_pos = scp->scr_buf + scp->ypos * scp->xsize + scp->xpos;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
}
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 {
bcopyw(scp->scr_buf, scp->scr_buf + scp->xsize,
(scp->ysize - 1) * scp->xsize * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf, scp->xsize);
mark_all(scp);
}
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': /* Cursor move */
case 'H':
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->cursor_pos,
scp->scr_buf + scp->xsize * scp->ysize - scp->cursor_pos);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, scp->xsize * scp->ysize);
break;
case 1: /* clear from beginning of display to cursor */
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf,
scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, 0);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
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->cursor_pos,
scp->xsize - scp->xpos);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf +
scp->xsize - scp->xpos);
break;
case 1: /* clear from beginning of line to cursor */
fillw(scp->term.cur_attr|scr_map[0x20],
scp->cursor_pos - (scp->xsize - scp->xpos),
(scp->xsize - scp->xpos) + 1);
mark_for_update(scp, scp->ypos * scp->xsize);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
break;
case 2: /* clear entire line */
fillw(scp->term.cur_attr|scr_map[0x20],
scp->cursor_pos - (scp->xsize - scp->xpos),
scp->xsize);
mark_for_update(scp, scp->ypos * scp->xsize);
mark_for_update(scp, (scp->ypos + 1) * 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->scr_buf + scp->ypos * scp->xsize;
dst = src + n * scp->xsize;
count = scp->ysize - (scp->ypos + n);
bcopyw(src, dst, count * scp->xsize * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20], src,
n * scp->xsize);
mark_for_update(scp, scp->ypos * scp->xsize);
mark_for_update(scp, scp->xsize * scp->ysize);
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->scr_buf + scp->ypos * scp->xsize;
src = dst + n * scp->xsize;
count = scp->ysize - (scp->ypos + n);
bcopyw(src, dst, count * scp->xsize * sizeof(u_short));
src = dst + count * scp->xsize;
fillw(scp->term.cur_attr | scr_map[0x20], src,
n * scp->xsize);
mark_for_update(scp, scp->ypos * scp->xsize);
mark_for_update(scp, scp->xsize * scp->ysize);
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->cursor_pos;
src = dst + n;
count = scp->xsize - (scp->xpos + n);
bcopyw(src, dst, count * sizeof(u_short));
src = dst + count;
fillw(scp->term.cur_attr | scr_map[0x20], src, n);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf + n + count);
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->cursor_pos;
dst = src + n;
count = scp->xsize - (scp->xpos + n);
bcopyw(src, dst, count * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20], src, n);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf + n + count);
break;
case 'S': /* scroll up n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->ysize)
n = scp->ysize;
bcopyw(scp->scr_buf + (scp->xsize * n),
scp->scr_buf,
scp->xsize * (scp->ysize - n) * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf + scp->xsize * (scp->ysize - n),
scp->xsize * n);
mark_all(scp);
break;
case 'T': /* scroll down n lines */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->ysize)
n = scp->ysize;
bcopyw(scp->scr_buf,
scp->scr_buf + (scp->xsize * n),
scp->xsize * (scp->ysize - n) *
sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf, scp->xsize * n);
mark_all(scp);
break;
case 'X': /* erase n characters in line */
n = scp->term.param[0]; if (n < 1) n = 1;
if (n > scp->xsize - scp->xpos)
n = scp->xsize - scp->xpos;
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf + scp->xpos +
((scp->xsize*scp->ypos) * sizeof(u_short)), n);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf + 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 - 1, 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 - 1);
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) {
scp->term.cur_attr = scp->term.std_attr;
break;
}
for (i = 0; i < scp->term.num_param; i++) {
switch (n = scp->term.param[i]) {
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 &= 0xFF00;
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: /* set fg color */
case 32: case 33: case 34:
case 35: case 36: case 37:
scp->term.cur_attr =
(scp->term.cur_attr&0xF8FF) | (ansi_col[(n-30)&7]<<8);
break;
case 40: case 41: /* set bg color */
case 42: case 43: case 44:
case 45: case 46: case 47:
scp->term.cur_attr =
(scp->term.cur_attr&0x8FFF) | (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, 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 type & shape */
if (scp->term.num_param == 1) {
if (scp->term.param[0] & 0x01)
configuration |= BLINK_CURSOR;
else
configuration &= ~BLINK_CURSOR;
if (scp->term.param[0] & 0x02) {
configuration |= CHAR_CURSOR;
set_destructive_cursor(scp, TRUE);
} else
configuration &= ~CHAR_CURSOR;
}
else if (scp->term.num_param == 2) {
scp->cursor_start = scp->term.param[0] & 0x1F;
scp->cursor_end = scp->term.param[1] & 0x1F;
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
}
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 inline void
draw_cursor(scr_stat *scp, int show)
{
if (show && !(scp->status & CURSOR_SHOWN)) {
u_short cursor_image = *(Crtat + (scp->cursor_pos - scp->scr_buf));
scp->cursor_saveunder = cursor_image;
if (configuration & CHAR_CURSOR) {
set_destructive_cursor(scp, FALSE);
cursor_image = (cursor_image & 0xff00) | DEAD_CHAR;
}
else {
if ((cursor_image & 0x7000) == 0x7000) {
cursor_image &= 0x8fff;
if(!(cursor_image & 0x0700))
cursor_image |= 0x0700;
} else {
cursor_image |= 0x7000;
if ((cursor_image & 0x0700) == 0x0700)
cursor_image &= 0xf0ff;
}
}
*(Crtat + (scp->cursor_pos - scp->scr_buf)) = cursor_image;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->status |= CURSOR_SHOWN;
}
if (!show && (scp->status & CURSOR_SHOWN)) {
*(Crtat + (scp->cursor_pos - scp->scr_buf)) = scp->cursor_saveunder;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->status &= ~CURSOR_SHOWN;
}
}
static void
ansi_put(scr_stat *scp, u_char *buf, int len)
{
u_char *ptr = buf;
if (scp->status & UNKNOWN_MODE)
return;
/* make screensaver happy */
if (scp == cur_console) {
scrn_time_stamp = time.tv_sec;
if (scrn_blanked) {
(*current_saver)(FALSE);
cur_console->start = 0;
cur_console->end = cur_console->xsize * cur_console->ysize;
}
}
write_in_progress++;
outloop:
if (scp->term.esc) {
scan_esc(scp, *ptr++);
len--;
}
else if (PRINTABLE(*ptr)) { /* Print only printables */
int cnt = len <= (scp->xsize-scp->xpos) ? len : (scp->xsize-scp->xpos);
u_short cur_attr = scp->term.cur_attr;
u_short *cursor_pos = scp->cursor_pos;
do {
/*
* gcc-2.6.3 generates poor (un)sign extension code. Casting the
* pointers in the following to volatile should have no effect,
* but in fact speeds up this inner loop from 26 to 18 cycles
* (+ cache misses) on i486's.
*/
#define UCVP(ucp) ((u_char volatile *)(ucp))
*cursor_pos++ = UCVP(scr_map)[*UCVP(ptr)] | cur_attr;
ptr++;
cnt--;
} while (cnt && PRINTABLE(*ptr));
len -= (cursor_pos - scp->cursor_pos);
scp->xpos += (cursor_pos - scp->cursor_pos);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
mark_for_update(scp, cursor_pos - scp->scr_buf);
scp->cursor_pos = cursor_pos;
if (scp->xpos >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
}
}
else {
switch(*ptr) {
case 0x07:
do_bell(scp, scp->bell_pitch, scp->bell_duration);
break;
case 0x08: /* non-destructive backspace */
if (scp->cursor_pos > scp->scr_buf) {
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->cursor_pos--;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
if (scp->xpos > 0)
scp->xpos--;
else {
scp->xpos += scp->xsize - 1;
scp->ypos--;
}
}
break;
case 0x09: /* non-destructive tab */
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->cursor_pos += (8 - scp->xpos % 8u);
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
if ((scp->xpos += (8 - scp->xpos % 8u)) >= scp->xsize) {
scp->xpos = 0;
scp->ypos++;
}
break;
case 0x0a: /* newline, same pos */
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->cursor_pos += scp->xsize;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->ypos++;
break;
case 0x0c: /* form feed, clears screen */
clear_screen(scp);
break;
case 0x0d: /* return, return to pos 0 */
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->cursor_pos -= scp->xpos;
mark_for_update(scp, scp->cursor_pos - scp->scr_buf);
scp->xpos = 0;
break;
case 0x1b: /* start escape sequence */
scp->term.esc = 1;
scp->term.num_param = 0;
break;
}
ptr++; len--;
}
/* do we have to scroll ?? */
if (scp->cursor_pos >= scp->scr_buf + scp->ysize * scp->xsize) {
if (scp->history) {
bcopyw(scp->scr_buf, scp->history_head,
scp->xsize * sizeof(u_short));
scp->history_head += scp->xsize;
if (scp->history_head + scp->xsize >
scp->history + scp->history_size)
scp->history_head = scp->history;
}
bcopyw(scp->scr_buf + scp->xsize, scp->scr_buf,
scp->xsize * (scp->ysize - 1) * sizeof(u_short));
fillw(scp->term.cur_attr | scr_map[0x20],
scp->scr_buf + scp->xsize * (scp->ysize - 1),
scp->xsize);
scp->cursor_pos -= scp->xsize;
scp->ypos--;
mark_all(scp);
}
if (len)
goto outloop;
write_in_progress--;
if (delayed_next_scr)
switch_scr(scp, delayed_next_scr - 1);
}
static void
scinit(void)
{
u_short volatile *cp;
u_short was;
unsigned hw_cursor, startaddr;
int i;
if (init_done)
return;
init_done = TRUE;
/*
* Finish defaulting crtc variables for a mono screen. Crtat is a
* bogus common variable so that it can be shared with pcvt, so it
* can't be statically initialized. XXX.
*/
Crtat = (u_short *)MONO_BUF;
/*
* If CGA memory seems to work, switch to color.
*/
cp = (u_short *)CGA_BUF;
was = *cp;
*cp = (u_short) 0xA55A;
if (*cp == 0xA55A) {
Crtat = (u_short *)cp;
crtc_addr = COLOR_BASE;
}
*cp = was;
/*
* Ensure a zero start address. This is mainly to recover after
* switching from pcvt using userconfig(). The registers are r/o
* for old hardware so it's too hard to relocate the active screen
* memory.
*/
outb(crtc_addr, 12);
outb(crtc_addr + 1, 0);
outb(crtc_addr, 13);
outb(crtc_addr + 1, 0);
/* extract cursor location */
outb(crtc_addr, 14);
hw_cursor = inb(crtc_addr + 1) << 8;
outb(crtc_addr, 15);
hw_cursor |= inb(crtc_addr + 1);
/* move hardware cursor out of the way */
outb(crtc_addr, 14);
outb(crtc_addr + 1, 0xff);
outb(crtc_addr, 15);
outb(crtc_addr + 1, 0xff);
/* is this a VGA or higher ? */
outb(crtc_addr, 7);
if (inb(crtc_addr) == 7) {
u_long pa;
u_long segoff;
crtc_vga = TRUE;
/*
* Get the BIOS video mode pointer.
*/
segoff = *(u_long *)pa_to_va(0x4a8);
pa = (((segoff & 0xffff0000) >> 12) + (segoff & 0xffff));
if (ISMAPPED(pa, sizeof(u_long))) {
segoff = *(u_long *)pa_to_va(pa);
pa = (((segoff & 0xffff0000) >> 12) + (segoff & 0xffff));
if (ISMAPPED(pa, 64))
video_mode_ptr = (char *)pa_to_va(pa);
}
}
current_default = &user_default;
console[0] = &main_console;
init_scp(console[0]);
console[0]->scr_buf = console[0]->mouse_pos = Crtat;
console[0]->cursor_pos = Crtat + hw_cursor;
console[0]->xpos = hw_cursor % COL;
console[0]->ypos = hw_cursor / COL;
cur_console = console[0];
for (i=1; i<MAXCONS; i++)
console[i] = NULL;
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;
}
static scr_stat
*alloc_scp()
{
scr_stat *scp;
scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
init_scp(scp);
scp->scr_buf = scp->cursor_pos = scp->scr_buf = scp->mouse_pos =
(u_short *)malloc(scp->xsize*scp->ysize*sizeof(u_short),
M_DEVBUF, M_WAITOK);
scp->history_head = scp->history_pos = scp->history =
(u_short *)malloc(scp->history_size*sizeof(u_short),
M_DEVBUF, M_WAITOK);
bzero(scp->history_head, scp->history_size*sizeof(u_short));
if (crtc_vga && video_mode_ptr)
set_mode(scp);
clear_screen(scp);
return scp;
}
static void
init_scp(scr_stat *scp)
{
scp->mode = M_VGA_C80x25;
scp->font = FONT_16;
scp->xsize = COL;
scp->ysize = ROW;
scp->start = COL * ROW;
scp->end = 0;
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 = *(char *)pa_to_va(0x461);
scp->cursor_end = *(char *)pa_to_va(0x460);
scp->mouse_xpos = scp->mouse_ypos = 0;
scp->bell_pitch = BELL_PITCH;
scp->bell_duration = BELL_DURATION;
scp->status = (*(char *)pa_to_va(0x417) & 0x20) ? NLKED : 0;
scp->status |= CURSOR_ENABLED;
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
scp->history_head = scp->history_pos = scp->history = NULL;
scp->history_size = HISTORY_SIZE;
}
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)
{
int s;
static u_char xlate_leds[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
/* replace CAPS led with ALTGR led for ALTGR keyboards */
if (key_map.n_keys > ALTGR_OFFSET) {
if (which & ALKED)
which |= CLKED;
else
which &= ~CLKED;
}
s = spltty();
kbd_cmd(KB_SETLEDS);
kbd_cmd(xlate_leds[which & LED_MASK]);
splx(s);
}
static void
history_to_screen(scr_stat *scp)
{
int i;
for (i=0; i<scp->ysize; i++)
bcopyw(scp->history + (((scp->history_pos - scp->history) +
scp->history_size-((i+1)*scp->xsize))%scp->history_size),
scp->scr_buf + (scp->xsize * (scp->ysize-1 - i)),
scp->xsize * sizeof(u_short));
mark_all(scp);
}
static int
history_up_line(scr_stat *scp)
{
if (WRAPHIST(scp, scp->history_pos, -(scp->xsize*scp->ysize)) !=
scp->history_head) {
scp->history_pos = WRAPHIST(scp, scp->history_pos, -scp->xsize);
history_to_screen(scp);
return 0;
}
else
return -1;
}
static int
history_down_line(scr_stat *scp)
{
if (scp->history_pos != scp->history_head) {
scp->history_pos = WRAPHIST(scp, scp->history_pos, scp->xsize);
history_to_screen(scp);
return 0;
}
else
return -1;
}
/*
* scgetc(noblock) - get character from keyboard.
* If noblock = 0 wait until a key is pressed.
* Else return NOKEY.
*/
u_int
scgetc(int noblock)
{
u_char scancode, keycode;
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)
scancode = inb(KB_DATA);
else if (noblock)
return(NOKEY);
else
goto next_code;
if (cur_console->status & KBD_RAW_MODE)
return scancode;
#if ASYNCH
if (scancode == KB_ACK || scancode == KB_RESEND) {
kbd_reply = scancode;
if (noblock)
return(NOKEY);
goto next_code;
}
#endif
keycode = scancode & 0x7F;
switch (esc_flag) {
case 0x00: /* normal scancode */
switch(scancode) {
case 0xB8: /* left alt (compose key) */
if (compose) {
compose = 0;
if (chr > 255) {
do_bell(cur_console,
BELL_PITCH, BELL_DURATION);
chr = 0;
}
}
break;
case 0x38:
if (!compose) {
compose = 1;
chr = 0;
}
break;
case 0xE0:
case 0xE1:
esc_flag = scancode;
goto next_code;
}
break;
case 0xE0: /* 0xE0 prefix */
esc_flag = 0;
switch (keycode) {
case 0x1C: /* right enter key */
keycode = 0x59;
break;
case 0x1D: /* right ctrl key */
keycode = 0x5A;
break;
case 0x35: /* keypad divide key */
keycode = 0x5B;
break;
case 0x37: /* print scrn key */
keycode = 0x5C;
break;
case 0x38: /* right alt key (alt gr) */
keycode = 0x5D;
break;
case 0x47: /* grey home key */
keycode = 0x5E;
break;
case 0x48: /* grey up arrow key */
keycode = 0x5F;
break;
case 0x49: /* grey page up key */
keycode = 0x60;
break;
case 0x4B: /* grey left arrow key */
keycode = 0x61;
break;
case 0x4D: /* grey right arrow key */
keycode = 0x62;
break;
case 0x4F: /* grey end key */
keycode = 0x63;
break;
case 0x50: /* grey down arrow key */
keycode = 0x64;
break;
case 0x51: /* grey page down key */
keycode = 0x65;
break;
case 0x52: /* grey insert key */
keycode = 0x66;
break;
case 0x53: /* grey delete key */
keycode = 0x67;
break;
/* the following 3 are only used on the MS "Natural" keyboard */
case 0x5b: /* left Window key */
keycode = 0x69;
break;
case 0x5c: /* right Window key */
keycode = 0x6a;
break;
case 0x5d: /* menu key */
keycode = 0x6b;
break;
default: /* ignore everything else */
goto next_code;
}
break;
case 0xE1: /* 0xE1 prefix */
esc_flag = 0;
if (keycode == 0x1D)
esc_flag = 0x1D;
goto next_code;
/* NOT REACHED */
case 0x1D: /* pause / break */
esc_flag = 0;
if (keycode != 0x45)
goto next_code;
keycode = 0x68;
break;
}
/* if scroll-lock pressed allow history browsing */
if (cur_console->history && cur_console->status & SLKED) {
int i;
cur_console->status &= ~CURSOR_ENABLED;
if (!(cur_console->status & BUFFER_SAVED)) {
cur_console->status |= BUFFER_SAVED;
cur_console->history_save = cur_console->history_head;
/* copy screen into top of history buffer */
for (i=0; i<cur_console->ysize; i++) {
bcopyw(cur_console->scr_buf + (cur_console->xsize * i),
cur_console->history_head,
cur_console->xsize * sizeof(u_short));
cur_console->history_head += cur_console->xsize;
if (cur_console->history_head + cur_console->xsize >
cur_console->history + cur_console->history_size)
cur_console->history_head=cur_console->history;
}
cur_console->history_pos = cur_console->history_head;
history_to_screen(cur_console);
}
switch (scancode) {
case 0x47: /* home key */
cur_console->history_pos = cur_console->history_head;
history_to_screen(cur_console);
goto next_code;
case 0x4F: /* end key */
cur_console->history_pos =
WRAPHIST(cur_console, cur_console->history_head,
cur_console->xsize*cur_console->ysize);
history_to_screen(cur_console);
goto next_code;
case 0x48: /* up arrow key */
if (history_up_line(cur_console))
do_bell(cur_console, BELL_PITCH, BELL_DURATION);
goto next_code;
case 0x50: /* down arrow key */
if (history_down_line(cur_console))
do_bell(cur_console, BELL_PITCH, BELL_DURATION);
goto next_code;
case 0x49: /* page up key */
for (i=0; i<cur_console->ysize; i++)
if (history_up_line(cur_console)) {
do_bell(cur_console, BELL_PITCH, BELL_DURATION);
break;
}
goto next_code;
case 0x51: /* page down key */
for (i=0; i<cur_console->ysize; i++)
if (history_down_line(cur_console)) {
do_bell(cur_console, BELL_PITCH, BELL_DURATION);
break;
}
goto next_code;
}
}
if (compose) {
switch (scancode) {
/* key pressed process it */
case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */
chr = (scancode - 0x40) + chr*10;
goto next_code;
case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */
chr = (scancode - 0x47) + chr*10;
goto next_code;
case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */
chr = (scancode - 0x4E) + chr*10;
goto next_code;
case 0x52: /* keypad 0 */
chr *= 10;
goto next_code;
/* key release, no interest here */
case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */
case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */
case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */
case 0xD2: /* keypad 0 */
goto next_code;
case 0x38: /* left alt key */
break;
default:
if (chr) {
compose = chr = 0;
do_bell(cur_console, 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)))
keycode += ALTGR_OFFSET;
key = &key_map.key[keycode];
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 (scancode & 0x80) { /* 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);
}
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);
}
break;
case SLK:
if (!slkcnt) {
slkcnt++;
if (cur_console->status & SLKED) {
cur_console->status &= ~SLKED;
if (cur_console->status & BUFFER_SAVED){
int i;
u_short *ptr = cur_console->history_save;
for (i=0; i<cur_console->ysize; i++) {
bcopyw(ptr,
cur_console->scr_buf +
(cur_console->xsize*i),
cur_console->xsize * sizeof(u_short));
ptr += cur_console->xsize;
if (ptr + cur_console->xsize >
cur_console->history +
cur_console->history_size)
ptr = cur_console->history;
}
cur_console->status &= ~BUFFER_SAVED;
cur_console->history_head=cur_console->history_save;
cur_console->status |= CURSOR_ENABLED;
mark_all(cur_console);
}
scstart(VIRTUAL_TTY(get_scr_num()));
}
else
cur_console->status |= SLKED;
update_leds(cur_console->status);
}
break;
case ALK:
if (!alkcnt) {
alkcnt++;
if (cur_console->status & ALKED)
cur_console->status &= ~ALKED;
else
cur_console->status |= ALKED;
update_leds(cur_console->status);
}
break;
/* NON-LOCKING KEYS */
case NOP:
break;
case RBT:
shutdown_nice();
break;
case SUSP:
#if NAPM > 0
apm_suspend();
#endif
break;
case DBG:
#ifdef DDB /* try to switch to console 0 */
if (cur_console->smode.mode == VT_AUTO &&
console[0]->smode.mode == VT_AUTO)
switch_scr(cur_console, 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(cur_console, (get_scr_num() + 1) % MAXCONS);
break;
case BTAB:
return(BKEY);
default:
if (action >= F_SCR && action <= L_SCR) {
switch_scr(cur_console, 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
scmmap(dev_t dev, int offset, int nprot)
{
if (offset > 0x20000 - PAGE_SIZE)
return -1;
return i386_btop((VIDEOMEM + offset));
}
static void
kbd_wait(void)
{
int i = 1000;
while (i--) {
if ((inb(KB_STAT) & KB_READY) == 0)
break;
DELAY (10);
}
}
static void
kbd_cmd(u_char command)
{
int retry = 5;
do {
int i = 100000;
kbd_wait();
#if ASYNCH
kbd_reply = 0;
outb(KB_DATA, command);
while (i--) {
if (kbd_reply == KB_ACK)
return;
if (kbd_reply == KB_RESEND)
break;
}
#else
outb(KB_DATA, command);
while (i--) {
if (inb(KB_STAT) & KB_BUF_FULL) {
int val;
DELAY(10);
val = inb(KB_DATA);
if (val == KB_ACK)
return;
if (val == KB_RESEND)
break;
}
}
#endif
} while (retry--);
}
static void
set_mode(scr_stat *scp)
{
char *modetable;
char special_modetable[64];
int mode, font_size;
if (scp != cur_console)
return;
/* setup video hardware for the given mode */
switch (scp->mode) {
case M_VGA_M80x60:
bcopyw(video_mode_ptr+(64*M_VGA_M80x25),&special_modetable, 64);
goto special_80x60;
case M_VGA_C80x60:
bcopyw(video_mode_ptr+(64*M_VGA_C80x25),&special_modetable, 64);
special_80x60:
special_modetable[2] = 0x08;
special_modetable[19] = 0x47;
goto special_480l;
case M_VGA_M80x30:
bcopyw(video_mode_ptr+(64*M_VGA_M80x25),&special_modetable, 64);
goto special_80x30;
case M_VGA_C80x30:
bcopyw(video_mode_ptr+(64*M_VGA_C80x25),&special_modetable, 64);
special_80x30:
special_modetable[19] = 0x4f;
special_480l:
special_modetable[9] |= 0xc0;
special_modetable[16] = 0x08;
special_modetable[17] = 0x3e;
special_modetable[26] = 0xea;
special_modetable[28] = 0xdf;
special_modetable[31] = 0xe7;
special_modetable[32] = 0x04;
modetable = special_modetable;
goto setup_mode;
case M_ENH_B80x43:
bcopyw(video_mode_ptr+(64*M_ENH_B80x25),&special_modetable, 64);
goto special_80x43;
case M_ENH_C80x43:
bcopyw(video_mode_ptr+(64*M_ENH_C80x25),&special_modetable, 64);
special_80x43:
special_modetable[28] = 87;
goto special_80x50;
case M_VGA_M80x50:
bcopyw(video_mode_ptr+(64*M_VGA_M80x25),&special_modetable, 64);
goto special_80x50;
case M_VGA_C80x50:
bcopyw(video_mode_ptr+(64*M_VGA_C80x25),&special_modetable, 64);
special_80x50:
special_modetable[2] = 8;
special_modetable[19] = 7;
modetable = special_modetable;
goto setup_mode;
case M_VGA_C40x25: case M_VGA_C80x25:
case M_VGA_M80x25:
case M_B40x25: case M_C40x25:
case M_B80x25: case M_C80x25:
case M_ENH_B40x25: case M_ENH_C40x25:
case M_ENH_B80x25: case M_ENH_C80x25:
modetable = video_mode_ptr + (scp->mode * 64);
setup_mode:
set_vgaregs(modetable);
font_size = *(modetable + 2);
/* set font type (size) */
switch (font_size) {
case 0x10:
outb(TSIDX, 0x03); outb(TSREG, 0x00); /* font 0 */
scp->font = FONT_16;
break;
case 0x0E:
outb(TSIDX, 0x03); outb(TSREG, 0x05); /* font 1 */
scp->font = FONT_14;
break;
default:
case 0x08:
outb(TSIDX, 0x03); outb(TSREG, 0x0A); /* font 2 */
scp->font = FONT_8;
break;
}
if (configuration & CHAR_CURSOR)
set_destructive_cursor(scp, TRUE);
break;
case M_BG320: case M_CG320: case M_BG640:
case M_CG320_D: case M_CG640_E:
case M_CG640x350: case M_ENH_CG640:
case M_BG640x480: case M_CG640x480: case M_VGA_CG320:
set_vgaregs(video_mode_ptr + (scp->mode * 64));
break;
default:
/* call user defined function XXX */
break;
}
/* set border color for this (virtual) console */
set_border(scp->border);
return;
}
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
set_vgaregs(char *modetable)
{
int i, s = splhigh();
outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */
outb(TSIDX, 0x07); outb(TSREG, 0x00); /* unlock registers */
for (i=0; i<4; i++) { /* program sequencer */
outb(TSIDX, i+1);
outb(TSREG, modetable[i+5]);
}
outb(MISC, modetable[9]); /* set dot-clock */
outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */
outb(crtc_addr, 0x11);
outb(crtc_addr+1, inb(crtc_addr+1) & 0x7F);
for (i=0; i<25; i++) { /* program crtc */
outb(crtc_addr, i);
if (i == 14 || i == 15) /* no hardware cursor */
outb(crtc_addr+1, 0xff);
else
outb(crtc_addr+1, modetable[i+10]);
}
inb(crtc_addr+6); /* reset flip-flop */
for (i=0; i<20; i++) { /* program attribute ctrl */
outb(ATC, i);
outb(ATC, modetable[i+35]);
}
for (i=0; i<9; i++) { /* program graph data ctrl */
outb(GDCIDX, i);
outb(GDCREG, modetable[i+55]);
}
inb(crtc_addr+6); /* reset flip-flop */
outb(ATC ,0x20); /* enable palette */
splx(s);
}
static void
set_font_mode()
{
/* setup vga for loading fonts (graphics plane mode) */
inb(crtc_addr+6);
outb(ATC, 0x30); outb(ATC, 0x01);
#if SLOW_VGA
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);
#else
outw(TSIDX, 0x0402);
outw(TSIDX, 0x0604);
outw(GDCIDX, 0x0204);
outw(GDCIDX, 0x0005);
outw(GDCIDX, 0x0506); /* addr = a0000, 64kb */
#endif
}
static void
set_normal_mode()
{
int s = splhigh();
/* setup vga for normal operation mode again */
inb(crtc_addr+6);
outb(ATC, 0x30); outb(ATC, 0x0C);
#if SLOW_VGA
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 */
}
#else
outw(TSIDX, 0x0302);
outw(TSIDX, 0x0204);
outw(GDCIDX, 0x0004);
outw(GDCIDX, 0x1005);
if (crtc_addr == MONO_BASE)
outw(GDCIDX, 0x0A06); /* addr = b0000, 32kb */
else
outw(GDCIDX, 0x0E06); /* addr = b8000, 32kb */
#endif
splx(s);
}
static void
copy_font(int operation, int font_type, char* font_image)
{
int ch, line, segment, fontsize;
u_char val;
switch (font_type) {
default:
case FONT_8:
segment = 0x8000;
fontsize = 8;
break;
case FONT_14:
segment = 0x4000;
fontsize = 14;
break;
case FONT_16:
segment = 0x0000;
fontsize = 16;
break;
}
outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */
outb(TSIDX, 0x01); outb(TSREG, val | 0x20);
set_font_mode();
for (ch=0; ch < 256; ch++)
for (line=0; line < fontsize; line++)
if (operation)
*(char *)pa_to_va(VIDEOMEM+(segment)+(ch*32)+line) =
font_image[(ch*fontsize)+line];
else
font_image[(ch*fontsize)+line] =
*(char *)pa_to_va(VIDEOMEM+(segment)+(ch*32)+line);
set_normal_mode();
outb(TSIDX, 0x01); outb(TSREG, val & 0xDF); /* enable screen */
}
static void
set_destructive_cursor(scr_stat *scp, int force)
{
u_char cursor[32];
caddr_t address;
int i, font_size;
char *font_buffer;
static u_char old_saveunder = DEAD_CHAR;
if (!force && (scp->cursor_saveunder & 0xFF) == old_saveunder)
return;
old_saveunder = force ? DEAD_CHAR : scp->cursor_saveunder & 0xFF;
switch (scp->font) {
default:
case FONT_8:
font_size = 8;
font_buffer = font_8;
address = (caddr_t)VIDEOMEM + 0x8000;
break;
case FONT_14:
font_size = 14;
font_buffer = font_14;
address = (caddr_t)VIDEOMEM + 0x4000;
break;
case FONT_16:
font_size = 16;
font_buffer = font_16;
address = (caddr_t)VIDEOMEM;
break;
}
bcopyw(font_buffer + ((scp->cursor_saveunder & 0xff) * font_size),
cursor, font_size);
for (i=0; i<32; i++)
if ((i >= scp->cursor_start && i <= scp->cursor_end) ||
(scp->cursor_start >= font_size && i == font_size - 1))
cursor[i] |= 0xff;
while (!(inb(crtc_addr+6) & 0x08)) /* wait for vertical retrace */ ;
set_font_mode();
bcopy(cursor, (char *)pa_to_va(address) + DEAD_CHAR * 32, 32);
set_normal_mode();
}
static void
draw_mouse_image(scr_stat *scp)
{
caddr_t address;
int i, font_size;
char *font_buffer;
u_short buffer[32];
u_short xoffset, yoffset;
u_short *crt_pos = Crtat + (scp->mouse_pos - scp->scr_buf);
xoffset = scp->mouse_xpos % 8;
switch (scp->font) {
default:
case FONT_8:
font_size = 8;
font_buffer = font_8;
yoffset = scp->mouse_ypos % 8;
address = (caddr_t)VIDEOMEM + 0x8000;
break;
case FONT_14:
font_size = 14;
font_buffer = font_14;
yoffset = scp->mouse_ypos % 14;
address = (caddr_t)VIDEOMEM + 0x4000;
break;
case FONT_16:
font_size = 16;
font_buffer = font_16;
yoffset = scp->mouse_ypos % 16;
address = (caddr_t)VIDEOMEM;
break;
}
bcopyw(font_buffer + ((*(scp->mouse_pos) & 0xff) * font_size),
&scp->mouse_cursor[0], font_size);
bcopyw(font_buffer + ((*(scp->mouse_pos+1) & 0xff) * font_size),
&scp->mouse_cursor[32], font_size);
bcopyw(font_buffer + ((*(scp->mouse_pos+scp->xsize) & 0xff) * font_size),
&scp->mouse_cursor[64], font_size);
bcopyw(font_buffer + ((*(scp->mouse_pos+scp->xsize+1) & 0xff) * font_size),
&scp->mouse_cursor[96], font_size);
for (i=0; i<font_size; i++) {
buffer[i] = scp->mouse_cursor[i]<<8 | scp->mouse_cursor[i+32];
buffer[i+font_size]=scp->mouse_cursor[i+64]<<8|scp->mouse_cursor[i+96];
}
for (i=0; i<16; i++) {
buffer[i+yoffset] =
( buffer[i+yoffset] & ~(mouse_and_mask[i] >> xoffset))
| (mouse_or_mask[i] >> xoffset);
}
for (i=0; i<font_size; i++) {
scp->mouse_cursor[i] = (buffer[i] & 0xff00) >> 8;
scp->mouse_cursor[i+32] = buffer[i] & 0xff;
scp->mouse_cursor[i+64] = (buffer[i+font_size] & 0xff00) >> 8;
scp->mouse_cursor[i+96] = buffer[i+font_size] & 0xff;
}
if (scp->status & UPDATE_MOUSE) {
u_short *ptr = scp->scr_buf + (scp->mouse_oldpos - Crtat);
if (crt_pos != scp->mouse_oldpos) {
*(scp->mouse_oldpos) = scp->mouse_saveunder[0];
*(scp->mouse_oldpos+1) = scp->mouse_saveunder[1];
*(scp->mouse_oldpos+scp->xsize) = scp->mouse_saveunder[2];
*(scp->mouse_oldpos+scp->xsize+1) = scp->mouse_saveunder[3];
}
scp->mouse_saveunder[0] = *(scp->mouse_pos);
scp->mouse_saveunder[1] = *(scp->mouse_pos+1);
scp->mouse_saveunder[2] = *(scp->mouse_pos+scp->xsize);
scp->mouse_saveunder[3] = *(scp->mouse_pos+scp->xsize+1);
if ((scp->cursor_pos == (ptr)) ||
(scp->cursor_pos == (ptr+1)) ||
(scp->cursor_pos == (ptr+scp->xsize)) ||
(scp->cursor_pos == (ptr+scp->xsize+1)) ||
(scp->cursor_pos == (scp->mouse_pos)) ||
(scp->cursor_pos == (scp->mouse_pos+1)) ||
(scp->cursor_pos == (scp->mouse_pos+scp->xsize)) ||
(scp->cursor_pos == (scp->mouse_pos+scp->xsize+1)))
scp->status &= ~CURSOR_SHOWN;
}
scp->mouse_oldpos = crt_pos;
while (!(inb(crtc_addr+6) & 0x08)) /* wait for vertical retrace */ ;
*(crt_pos) = *(scp->mouse_pos)&0xff00|0xd0;
*(crt_pos+1) = *(scp->mouse_pos+1)&0xff00|0xd1;
*(crt_pos+scp->xsize) = *(scp->mouse_pos+scp->xsize)&0xff00|0xd2;
*(crt_pos+scp->xsize+1) = *(scp->mouse_pos+scp->xsize+1)&0xff00|0xd3;
set_font_mode();
bcopy(scp->mouse_cursor, (char *)pa_to_va(address) + 0xd0 * 32, 128);
set_normal_mode();
}
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 */
}
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
do_bell(scr_stat *scp, int pitch, int duration)
{
if (scp == cur_console) {
if (configuration & VISUAL_BELL) {
if (blink_in_progress)
return;
blink_in_progress = 4;
blink_screen(scp);
timeout((timeout_func_t)blink_screen, scp, hz/10);
}
else
sysbeep(pitch, duration);
}
}
static void
blink_screen(scr_stat *scp)
{
if (blink_in_progress > 1) {
if (blink_in_progress & 1)
fillw(kernel_default.std_attr | scr_map[0x20],
Crtat, scp->xsize * scp->ysize);
else
fillw(kernel_default.rev_attr | scr_map[0x20],
Crtat, scp->xsize * scp->ysize);
blink_in_progress--;
timeout((timeout_func_t)blink_screen, scp, hz/10);
}
else {
blink_in_progress = FALSE;
mark_all(scp);
if (delayed_next_scr)
switch_scr(scp, delayed_next_scr - 1);
}
}
#endif /* NSC */
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