/* $OpenBSD: pccons.c,v 1.30 1996/10/16 12:46:30 deraadt Exp $ */ /* $NetBSD: pccons.c,v 1.99.4.1 1996/06/04 20:03:53 cgd Exp $ */ /*- * Copyright (c) 1993, 1994, 1995 Charles Hannum. All rights reserved. * 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. * * @(#)pccons.c 5.11 (Berkeley) 5/21/91 */ /* * code to work keyboard & display for PC-style console */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define XFREE86_BUG_COMPAT #ifndef BEEP_FREQ #define BEEP_FREQ 1500 #endif #ifndef BEEP_TIME #define BEEP_TIME (hz/5) #endif #define PCBURST 128 static u_short *Crtat; /* pointer to backing store */ static u_short *crtat; /* pointer to current char */ static volatile u_char ack, nak; /* Don't ask. */ static u_char async, kernel, polling; /* Really, you don't want to know. */ static u_char lock_state = 0x00, /* all off */ old_lock_state = 0xff, typematic_rate = 0xff, /* don't update until set by user */ old_typematic_rate = 0xff; static u_short cursor_shape = 0xffff, /* don't update until set by user */ old_cursor_shape = 0xffff; static pccons_keymap_t scan_codes[KB_NUM_KEYS];/* keyboard translation table */ #ifdef XSERVER int pc_xmode = 0; #endif #define PCUNIT(x) (minor(x)) static struct video_state { int cx, cy; /* escape parameters */ int row, col; /* current cursor position */ int nrow, ncol, nchr; /* current screen geometry */ int offset; /* Saved cursor pos */ u_char state; /* parser state */ #define VSS_ESCAPE 1 #define VSS_EBRACE 2 #define VSS_EPARAM 3 char so; /* in standout mode? */ char color; /* color or mono display */ char at; /* normal attributes */ char so_at; /* standout attributes */ } vs; struct pc_softc { struct device sc_dev; void *sc_ih; struct tty *sc_tty; }; int pcprobe __P((struct device *, void *, void *)); void pcattach __P((struct device *, struct device *, void *)); int pcintr __P((void *)); static void screen_restore __P((int)); struct cfattach pc_ca = { sizeof(struct pc_softc), pcprobe, pcattach }; struct cfdriver pc_cd = { NULL, "pc", DV_TTY }; #define COL 80 #define ROW 25 #define CHR 2 static unsigned int addr_6845 = MONO_BASE; void pcinit __P((void)); char *sget __P((void)); void sput __P((u_char *, int)); #ifdef XSERVER void pc_xmode_on __P((void)); void pc_xmode_off __P((void)); #endif void pcstart __P((struct tty *)); int pcparam __P((struct tty *, struct termios *)); char partab[]; int kbd_cmd __P((u_char, u_char)); void set_cursor_shape __P((void)); #ifdef XSERVER void get_cursor_shape __P((void)); #endif void do_async_update __P((void *)); void async_update __P((void)); static __inline int kbd_wait_output __P((void)); static __inline int kbd_wait_input __P((void)); static __inline void kbd_flush_input __P((void)); static u_char kbc_get8042cmd __P((void)); static int kbc_put8042cmd __P((u_char)); void pccnprobe __P((struct consdev *)); void pccninit __P((struct consdev *)); void pccnputc __P((dev_t, char)); int pccngetc __P((dev_t)); void pccnpollc __P((dev_t, int)); /* wait 7+ us for keyboard controller; ~1.25us per inb() */ #define KBD_DELAY \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } \ { u_char x = inb(0x84); (void) x; } static __inline int kbd_wait_output() { u_int i; for (i = 100000; i; i--) if ((inb(KBSTATP) & KBS_IBF) == 0) { KBD_DELAY; return 1; } return 0; } static __inline int kbd_wait_input() { u_int i; for (i = 100000; i; i--) if ((inb(KBSTATP) & KBS_DIB) != 0) { KBD_DELAY; return 1; } return 0; } static __inline void kbd_flush_input() { u_int i; for (i = 10; i; i--) { if ((inb(KBSTATP) & KBS_DIB) == 0) return; KBD_DELAY; (void) inb(KBDATAP); } } #if 1 /* * Get the current command byte. */ static u_char kbc_get8042cmd() { if (!kbd_wait_output()) return -1; outb(KBCMDP, K_RDCMDBYTE); if (!kbd_wait_input()) return -1; return inb(KBDATAP); } #endif /* * Pass command byte to keyboard controller (8042). */ static int kbc_put8042cmd(val) u_char val; { if (!kbd_wait_output()) return 0; outb(KBCMDP, K_LDCMDBYTE); if (!kbd_wait_output()) return 0; outb(KBOUTP, val); return 1; } /* * Pass command to keyboard itself */ int kbd_cmd(val, polling) u_char val; u_char polling; { u_int retries = 3; register u_int i; do { if (!kbd_wait_output()) return 0; ack = nak = 0; outb(KBOUTP, val); if (polling) for (i = 100000; i; i--) { if (inb(KBSTATP) & KBS_DIB) { register u_char c; KBD_DELAY; c = inb(KBDATAP); if (c == KBR_ACK || c == KBR_ECHO) { ack = 1; return 1; } if (c == KBR_RESEND) { nak = 1; break; } #ifdef DIAGNOSTIC printf("kbd_cmd: input char %x lost\n", c); #endif } } else for (i = 100000; i; i--) { (void) inb(KBSTATP); if (ack) return 1; if (nak) break; } if (!nak) return 0; } while (--retries); return 0; } void set_cursor_shape() { outb(addr_6845, CRTC_CURSTART); outb(addr_6845+1, cursor_shape >> 8); outb(addr_6845, CRTC_CUREND); outb(addr_6845+1, cursor_shape); old_cursor_shape = cursor_shape; } #ifdef XSERVER void get_cursor_shape() { outb(addr_6845, CRTC_CURSTART); cursor_shape = inb(addr_6845+1) << 8; outb(addr_6845, CRTC_CUREND); cursor_shape |= inb(addr_6845+1); /* * real 6845's, as found on, MDA, Hercules or CGA cards, do * not support reading the cursor shape registers. the 6845 * tri-states it's data bus. This is _normally_ read by the * cpu as either 0x00 or 0xff.. in which case we just use * a line cursor. */ if (cursor_shape == 0x0000 || cursor_shape == 0xffff) cursor_shape = 0x0b10; else cursor_shape &= 0x1f1f; } #endif /* XSERVER */ void do_async_update(v) void *v; { u_char poll = v ? 1 : 0; int pos; static int old_pos = -1; async = 0; if (lock_state != old_lock_state) { old_lock_state = lock_state; if (!kbd_cmd(KBC_MODEIND, poll) || !kbd_cmd(lock_state, poll)) { printf("pc: timeout updating leds\n"); (void) kbd_cmd(KBC_ENABLE, poll); } } if (typematic_rate != old_typematic_rate) { old_typematic_rate = typematic_rate; if (!kbd_cmd(KBC_TYPEMATIC, poll) || !kbd_cmd(typematic_rate, poll)) { printf("pc: timeout updating typematic rate\n"); (void) kbd_cmd(KBC_ENABLE, poll); } } #ifdef XSERVER if (pc_xmode > 0) return; #endif pos = crtat - Crtat; if (pos != old_pos) { register int iobase = addr_6845; outb(iobase, CRTC_CURSORH); outb(iobase+1, pos >> 8); outb(iobase, CRTC_CURSORL); outb(iobase+1, pos); old_pos = pos; } if (cursor_shape != old_cursor_shape) set_cursor_shape(); } void async_update() { if (kernel || polling) { if (async) untimeout(do_async_update, NULL); do_async_update((void *)1); } else { if (async) return; async = 1; timeout(do_async_update, NULL, 1); } } /* * these are both bad jokes */ int pcprobe(parent, match, aux) struct device *parent; void *match, *aux; { struct isa_attach_args *ia = aux; u_int i; /* Enable interrupts and keyboard, etc. */ if (!kbc_put8042cmd(CMDBYTE)) { printf("pcprobe: command error\n"); return 0; } #if 1 /* Flush any garbage. */ kbd_flush_input(); /* Reset the keyboard. */ if (!kbd_cmd(KBC_RESET, 1)) { #ifdef DIAGNOSTIC printf("pcprobe: reset error %d\n", 1); #endif } for (i = 600000; i; i--) if ((inb(KBSTATP) & KBS_DIB) != 0) { KBD_DELAY; break; } if (i == 0 || inb(KBDATAP) != KBR_RSTDONE) { #ifdef DIAGNOSTIC printf("pcprobe: reset error %d\n", 2); #endif } /* * Some keyboards seem to leave a second ack byte after the reset. * This is kind of stupid, but we account for them anyway by just * flushing the buffer. */ kbd_flush_input(); /* Just to be sure. */ if (!kbd_cmd(KBC_ENABLE, 1)) { printf("pcprobe: reset error %d\n", 3); goto lose; } /* * Some keyboard/8042 combinations do not seem to work if the keyboard * is set to table 1; in fact, it would appear that some keyboards just * ignore the command altogether. So by default, we use the AT scan * codes and have the 8042 translate them. Unfortunately, this is * known to not work on some PS/2 machines. We try desparately to deal * with this by checking the (lack of a) translate bit in the 8042 and * attempting to set the keyboard to XT mode. If this all fails, well, * tough luck. * * XXX It would perhaps be a better choice to just use AT scan codes * and not bother with this. */ if (kbc_get8042cmd() & KC8_TRANS) { /* The 8042 is translating for us; use AT codes. */ if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(2, 1)) { printf("pcprobe: reset error %d\n", 4); goto lose; } } else { /* Stupid 8042; set keyboard to XT codes. */ if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(1, 1)) { printf("pcprobe: reset error %d\n", 5); goto lose; } } lose: /* * Technically, we should probably fail the probe. But we'll be nice * and allow keyboard-less machines to boot with the console. */ #endif ia->ia_iosize = 16; ia->ia_msize = 0; return 1; } void pcattach(parent, self, aux) struct device *parent, *self; void *aux; { struct pc_softc *sc = (void *)self; struct isa_attach_args *ia = aux; if (crtat == 0) pcinit(); printf(": %s\n", vs.color ? "color" : "mono"); do_async_update((void *)1); screen_restore(0); sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_TTY, pcintr, sc, sc->sc_dev.dv_xname); /* * Look for children of the keyboard controller. * XXX Really should decouple keyboard controller * from the console code. */ while (config_found(self, ia->ia_ic, NULL) != NULL) /* XXX */ /* will break when no more children */ ; } int pcopen(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { struct pc_softc *sc; int unit = PCUNIT(dev); struct tty *tp; int s; if (unit >= pc_cd.cd_ndevs) return ENXIO; sc = pc_cd.cd_devs[unit]; if (sc == 0) return ENXIO; s = spltty(); if (!sc->sc_tty) { tp = sc->sc_tty = ttymalloc(); tty_attach(tp); } else tp = sc->sc_tty; splx(s); tp->t_oproc = pcstart; tp->t_param = pcparam; tp->t_dev = dev; if ((tp->t_state & TS_ISOPEN) == 0) { tp->t_state |= TS_WOPEN; ttychars(tp); tp->t_iflag = TTYDEF_IFLAG; tp->t_oflag = TTYDEF_OFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_lflag = TTYDEF_LFLAG; tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; pcparam(tp, &tp->t_termios); ttsetwater(tp); } else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0) return EBUSY; tp->t_state |= TS_CARR_ON; return ((*linesw[tp->t_line].l_open)(dev, tp)); } int pcclose(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)]; struct tty *tp = sc->sc_tty; (*linesw[tp->t_line].l_close)(tp, flag); ttyclose(tp); #ifdef notyet /* XXX */ ttyfree(tp); #endif return(0); } int pcread(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)]; struct tty *tp = sc->sc_tty; return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); } int pcwrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)]; struct tty *tp = sc->sc_tty; return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); } struct tty * pctty(dev) dev_t dev; { struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)]; struct tty *tp = sc->sc_tty; return (tp); } /* * Got a console receive interrupt - * the console processor wants to give us a character. * Catch the character, and see who it goes to. */ int pcintr(arg) void *arg; { struct pc_softc *sc = arg; register struct tty *tp = sc->sc_tty; u_char *cp; if ((inb(KBSTATP) & KBS_DIB) == 0) return 0; if (polling) return 1; do { cp = sget(); if (!tp || (tp->t_state & TS_ISOPEN) == 0) return 1; if (cp) do (*linesw[tp->t_line].l_rint)(*cp++, tp); while (*cp); } while (inb(KBSTATP) & KBS_DIB); return 1; } int pcioctl(dev, cmd, data, flag, p) dev_t dev; u_long cmd; caddr_t data; int flag; struct proc *p; { struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)]; struct tty *tp = sc->sc_tty; int error; error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p); if (error >= 0) return error; error = ttioctl(tp, cmd, data, flag, p); if (error >= 0) return error; switch (cmd) { #ifdef XSERVER case CONSOLE_X_MODE_ON: pc_xmode_on(); return 0; case CONSOLE_X_MODE_OFF: pc_xmode_off(); return 0; case CONSOLE_X_BELL: /* * If set, data is a pointer to a length 2 array of * integers. data[0] is the pitch in Hz and data[1] * is the duration in msec. */ if (data) sysbeep(((int*)data)[0], (((int*)data)[1] * hz) / 1000); else sysbeep(BEEP_FREQ, BEEP_TIME); return 0; #endif /* XSERVER */ case CONSOLE_SET_TYPEMATIC_RATE: { u_char rate; if (!data) return EINVAL; rate = *((u_char *)data); /* * Check that it isn't too big (which would cause it to be * confused with a command). */ if (rate & 0x80) return EINVAL; typematic_rate = rate; async_update(); return 0; } case CONSOLE_SET_KEYMAP: { pccons_keymap_t *map = (pccons_keymap_t *) data; int i; if (!data) return EINVAL; for (i = 0; i < KB_NUM_KEYS; i++) if (map[i].unshift[KB_CODE_SIZE-1] || map[i].shift[KB_CODE_SIZE-1] || map[i].ctl[KB_CODE_SIZE-1] || map[i].altgr[KB_CODE_SIZE-1] || map[i].shift_altgr[KB_CODE_SIZE-1]) return EINVAL; bcopy(data, scan_codes, sizeof(pccons_keymap_t[KB_NUM_KEYS])); return 0; } case CONSOLE_GET_KEYMAP: if (!data) return EINVAL; bcopy(scan_codes, data, sizeof(pccons_keymap_t[KB_NUM_KEYS])); return 0; default: return ENOTTY; } #ifdef DIAGNOSTIC panic("pcioctl: impossible"); #endif } void pcstart(tp) struct tty *tp; { struct clist *cl; int s, len; u_char buf[PCBURST]; s = spltty(); if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) goto out; tp->t_state |= TS_BUSY; splx(s); /* * We need to do this outside spl since it could be fairly * expensive and we don't want our serial ports to overflow. */ cl = &tp->t_outq; len = q_to_b(cl, buf, PCBURST); sput(buf, len); s = spltty(); tp->t_state &= ~TS_BUSY; if (cl->c_cc) { tp->t_state |= TS_TIMEOUT; timeout(ttrstrt, tp, 1); } if (cl->c_cc <= tp->t_lowat) { if (tp->t_state & TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; wakeup(cl); } selwakeup(&tp->t_wsel); } out: splx(s); } int pcstop(tp, flag) struct tty *tp; int flag; { return 0; } void pccnprobe(cp) struct consdev *cp; { int maj; /* locate the major number */ for (maj = 0; maj < nchrdev; maj++) if (cdevsw[maj].d_open == pcopen) break; /* initialize required fields */ cp->cn_dev = makedev(maj, 0); cp->cn_pri = CN_INTERNAL; } /* ARGSUSED */ void pccninit(cp) struct consdev *cp; { /* * For now, don't screw with it. */ /* crtat = 0; */ } /* ARGSUSED */ void pccnputc(dev, c) dev_t dev; char c; { u_char oldkernel = kernel; kernel = 1; if (c == '\n') sput("\r\n", 2); else sput(&c, 1); kernel = oldkernel; } /* ARGSUSED */ int pccngetc(dev) dev_t dev; { register char *cp; #ifdef XSERVER if (pc_xmode > 0) return 0; #endif do { /* wait for byte */ while ((inb(KBSTATP) & KBS_DIB) == 0); /* see if it's worthwhile */ cp = sget(); } while (!cp); if (*cp == '\r') return '\n'; return *cp; } void pccnpollc(dev, on) dev_t dev; int on; { polling = on; if (!on) { int unit; struct pc_softc *sc; int s; /* * If disabling polling on a device that's been configured, * make sure there are no bytes left in the FIFO, holding up * the interrupt line. Otherwise we won't get any further * interrupts. */ unit = PCUNIT(dev); if (pc_cd.cd_ndevs > unit) { sc = pc_cd.cd_devs[unit]; if (sc != 0) { s = spltty(); pcintr(sc); splx(s); } } } } /* * Set line parameters. */ int pcparam(tp, t) 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; } void pcinit() { u_short volatile *cp; u_short was; unsigned cursorat; cp = ISA_HOLE_VADDR(CGA_BUF); was = *cp; *cp = (u_short) 0xA55A; if (*cp != 0xA55A) { cp = ISA_HOLE_VADDR(MONO_BUF); addr_6845 = MONO_BASE; vs.color = 0; } else { *cp = was; addr_6845 = CGA_BASE; vs.color = 1; } /* Extract cursor location */ outb(addr_6845, CRTC_CURSORH); cursorat = inb(addr_6845+1) << 8; outb(addr_6845, CRTC_CURSORL); cursorat |= inb(addr_6845+1); #ifdef FAT_CURSOR cursor_shape = 0x0012; #endif Crtat = (u_short *)cp; crtat = (u_short *)(cp + cursorat); vs.ncol = COL; vs.nrow = ROW; vs.nchr = COL * ROW; vs.at = FG_LIGHTGREY | BG_BLACK; if (vs.color == 0) vs.so_at = FG_BLACK | BG_LIGHTGREY; else vs.so_at = FG_YELLOW | BG_BLACK; fillw((vs.at << 8) | ' ', crtat, vs.nchr - cursorat); } #define wrtchar(c, at) do {\ char *cp = (char *)crtat; *cp++ = (c); *cp = (at); crtat++; vs.col++; \ } while (0) /* translate ANSI color codes to standard pc ones */ static char fgansitopc[] = { FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, FG_MAGENTA, FG_CYAN, FG_LIGHTGREY }; static char bgansitopc[] = { BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, BG_MAGENTA, BG_CYAN, BG_LIGHTGREY }; /* * iso latin to ibm 437 encoding iso2ibm437[char-128)] * characters not available are displayed as a caret */ static u_char iso2ibm437[] = { 4, 4, 4, 4, 4, 4, 4, 4, /* 128 */ 4, 4, 4, 4, 4, 4, 4, 4, /* 136 */ 4, 4, 4, 4, 4, 4, 4, 4, /* 144 */ 4, 4, 4, 4, 4, 4, 4, 4, /* 152 */ 0xff, 0xad, 0x9b, 0x9c, 4, 0x9d, 4, 0x15, /* 160 */ 4, 4, 0xa6, 0xae, 0xaa, 4, 4, 4, /* 168 */ 0xf8, 0xf1, 0xfd, 4, 4, 0xe6, 4, 0xfa, /* 176 */ 4, 4, 0xa7, 0xaf, 0xac, 0xab, 4, 0xa8, /* 184 */ 4, 4, 4, 4, 0x8e, 0x8f, 0x92, 0x80, /* 192 */ 4, 0x90, 4, 4, 4, 4, 4, 4, /* 200 */ 4, 0xa5, 4, 4, 4, 4, 0x99, 4, /* 208 */ 4, 4, 4, 4, 0x9a, 4, 4, 0xe1, /* 216 */ 0x85, 0xa0, 0x83, 4, 0x84, 0x86, 0x91, 0x87, /* 224 */ 0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, /* 232 */ 4, 0xa4, 0x95, 0xa2, 0x93, 4, 0x94, 0xf6, /* 240 */ 4, 0x97, 0xa3, 0x96, 0x81, 4, 4, 0x98 /* 248 */ }; static u_short screen_backup[ROW*COL]; static int screen_saved = 0; static u_short *saved_Crtat; static void screen_blank __P((void *)); static void screen_blank(arg) void *arg; { if (! screen_saved) { bcopy(Crtat, screen_backup, ROW*COL*CHR); bzero(Crtat, ROW*COL*CHR); saved_Crtat = Crtat; Crtat = screen_backup; crtat = Crtat + (crtat - saved_Crtat); #if 0 /* write a little blinking square to bootom, left */ saved_Crtat[(ROW - 1)*COL] = ((FG_BLINK | FG_LIGHTGREY | BG_BLACK) << 8) | 220; #endif screen_saved = 1; } } static void screen_restore(perm) int perm; { untimeout(screen_blank, NULL); if (screen_saved) { Crtat = saved_Crtat; crtat = Crtat + (crtat - screen_backup); bcopy(screen_backup, Crtat, ROW*COL*CHR); screen_saved = 0; } if (! perm) timeout(screen_blank, NULL, 300*hz); } /* * `pc3' termcap emulation. */ void sput(cp, n) u_char *cp; int n; { u_char c, scroll = 0; #ifdef XSERVER if (pc_xmode > 0) return; #endif if (crtat == 0) pcinit(); while (n--) { if (!(c = *cp++)) continue; switch (c) { case 0x1B: if (vs.state >= VSS_ESCAPE) { wrtchar(c, vs.so_at); vs.state = 0; goto maybe_scroll; } else vs.state = VSS_ESCAPE; break; case 0x9B: /* CSI */ vs.cx = vs.cy = 0; vs.state = VSS_EBRACE; break; case '\t': { int inccol = 8 - (vs.col & 7); crtat += inccol; vs.col += inccol; } maybe_scroll: if (vs.col >= COL) { vs.col -= COL; scroll = 1; } break; case '\b': if (crtat <= Crtat) break; --crtat; if (--vs.col < 0) vs.col += COL; /* non-destructive backspace */ break; case '\r': crtat -= vs.col; vs.col = 0; break; case '\n': crtat += vs.ncol; scroll = 1; break; default: switch (vs.state) { case 0: if (c == '\a') sysbeep(BEEP_FREQ, BEEP_TIME); else { /* * If we're outputting multiple printed * characters, just blast them to the * screen until we reach the end of the * buffer or a control character. This * saves time by short-circuiting the * switch. * If we reach the end of the line, we * break to do a scroll check. */ for (;;) { if (c & 0x80) c = iso2ibm437[c&0x7f]; if (vs.so) wrtchar(c, vs.so_at); else wrtchar(c, vs.at); if (vs.col >= vs.ncol) { vs.col = 0; scroll = 1; break; } if (!n || (c = *cp) < ' ') break; n--, cp++; } } break; case VSS_ESCAPE: switch (c) { case '[': /* Start ESC [ sequence */ vs.cx = vs.cy = 0; vs.state = VSS_EBRACE; break; case 'c': /* Create screen & home */ fillw((vs.at << 8) | ' ', Crtat, vs.nchr); crtat = Crtat; vs.col = 0; vs.state = 0; break; case '7': /* save cursor pos */ vs.offset = crtat - Crtat; vs.state = 0; break; case '8': /* restore cursor pos */ crtat = Crtat + vs.offset; vs.row = vs.offset / vs.ncol; vs.col = vs.offset % vs.ncol; vs.state = 0; break; default: /* Invalid, clear state */ wrtchar(c, vs.so_at); vs.state = 0; goto maybe_scroll; } break; default: /* VSS_EBRACE or VSS_EPARAM */ switch (c) { int pos; case 'm': if (!vs.cx) vs.so = 0; else vs.so = 1; vs.state = 0; break; case 'A': { /* back cx rows */ int cx = vs.cx; if (cx <= 0) cx = 1; else cx %= vs.nrow; pos = crtat - Crtat; pos -= vs.ncol * cx; if (pos < 0) pos += vs.nchr; crtat = Crtat + pos; vs.state = 0; break; } case 'B': { /* down cx rows */ int cx = vs.cx; if (cx <= 0) cx = 1; else cx %= vs.nrow; pos = crtat - Crtat; pos += vs.ncol * cx; if (pos >= vs.nchr) pos -= vs.nchr; crtat = Crtat + pos; vs.state = 0; break; } case 'C': { /* right cursor */ int cx = vs.cx, col = vs.col; if (cx <= 0) cx = 1; else cx %= vs.ncol; pos = crtat - Crtat; pos += cx; col += cx; if (col >= vs.ncol) { pos -= vs.ncol; col -= vs.ncol; } vs.col = col; crtat = Crtat + pos; vs.state = 0; break; } case 'D': { /* left cursor */ int cx = vs.cx, col = vs.col; if (cx <= 0) cx = 1; else cx %= vs.ncol; pos = crtat - Crtat; pos -= cx; col -= cx; if (col < 0) { pos += vs.ncol; col += vs.ncol; } vs.col = col; crtat = Crtat + pos; vs.state = 0; break; } case 'J': /* Clear ... */ switch (vs.cx) { case 0: /* ... to end of display */ fillw((vs.at << 8) | ' ', crtat, Crtat + vs.nchr - crtat); break; case 1: /* ... to next location */ fillw((vs.at << 8) | ' ', Crtat, crtat - Crtat + 1); break; case 2: /* ... whole display */ fillw((vs.at << 8) | ' ', Crtat, vs.nchr); break; } vs.state = 0; break; case 'K': /* Clear line ... */ switch (vs.cx) { case 0: /* ... current to EOL */ fillw((vs.at << 8) | ' ', crtat, vs.ncol - vs.col); break; case 1: /* ... beginning to next */ fillw((vs.at << 8) | ' ', crtat - vs.col, vs.col + 1); break; case 2: /* ... entire line */ fillw((vs.at << 8) | ' ', crtat - vs.col, vs.ncol); break; } vs.state = 0; break; case 'f': /* in system V consoles */ case 'H': { /* Cursor move */ int cx = vs.cx, cy = vs.cy; if (!cx || !cy) { crtat = Crtat; vs.col = 0; } else { if (cx > vs.nrow) cx = vs.nrow; if (cy > vs.ncol) cy = vs.ncol; crtat = Crtat + (cx - 1) * vs.ncol + cy - 1; vs.col = cy - 1; } vs.state = 0; break; } case 'M': { /* delete cx rows */ u_short *crtAt = crtat - vs.col; int cx = vs.cx, row = (crtAt - Crtat) / vs.ncol, nrow = vs.nrow - row; if (cx <= 0) cx = 1; else if (cx > nrow) cx = nrow; if (cx < nrow) bcopy(crtAt + vs.ncol * cx, crtAt, vs.ncol * (nrow - cx) * CHR); fillw((vs.at << 8) | ' ', crtAt + vs.ncol * (nrow - cx), vs.ncol * cx); vs.state = 0; break; } case 'S': { /* scroll up cx lines */ int cx = vs.cx; if (cx <= 0) cx = 1; else if (cx > vs.nrow) cx = vs.nrow; if (cx < vs.nrow) bcopy(Crtat + vs.ncol * cx, Crtat, vs.ncol * (vs.nrow - cx) * CHR); fillw((vs.at << 8) | ' ', Crtat + vs.ncol * (vs.nrow - cx), vs.ncol * cx); #if 0 crtat -= vs.ncol * cx; /* XXX */ #endif vs.state = 0; break; } case 'L': { /* insert cx rows */ u_short *crtAt = crtat - vs.col; int cx = vs.cx, row = (crtAt - Crtat) / vs.ncol, nrow = vs.nrow - row; if (cx <= 0) cx = 1; else if (cx > nrow) cx = nrow; if (cx < nrow) bcopy(crtAt, crtAt + vs.ncol * cx, vs.ncol * (nrow - cx) * CHR); fillw((vs.at << 8) | ' ', crtAt, vs.ncol * cx); vs.state = 0; break; } case 'T': { /* scroll down cx lines */ int cx = vs.cx; if (cx <= 0) cx = 1; else if (cx > vs.nrow) cx = vs.nrow; if (cx < vs.nrow) bcopy(Crtat, Crtat + vs.ncol * cx, vs.ncol * (vs.nrow - cx) * CHR); fillw((vs.at << 8) | ' ', Crtat, vs.ncol * cx); #if 0 crtat += vs.ncol * cx; /* XXX */ #endif vs.state = 0; break; } case ';': /* Switch params in cursor def */ vs.state = VSS_EPARAM; break; case 'r': vs.so_at = (vs.cx & FG_MASK) | ((vs.cy << 4) & BG_MASK); vs.state = 0; break; case 's': /* save cursor pos */ vs.offset = crtat - Crtat; vs.state = 0; break; case 'u': /* restore cursor pos */ crtat = Crtat + vs.offset; vs.row = vs.offset / vs.ncol; vs.col = vs.offset % vs.ncol; vs.state = 0; break; case 'x': /* set attributes */ switch (vs.cx) { case 0: vs.at = FG_LIGHTGREY | BG_BLACK; break; case 1: /* ansi background */ if (!vs.color) break; vs.at &= FG_MASK; vs.at |= bgansitopc[vs.cy & 7]; break; case 2: /* ansi foreground */ if (!vs.color) break; vs.at &= BG_MASK; vs.at |= fgansitopc[vs.cy & 7]; break; case 3: /* pc text attribute */ if (vs.state >= VSS_EPARAM) vs.at = vs.cy; break; } vs.state = 0; break; default: /* Only numbers valid here */ if ((c >= '0') && (c <= '9')) { if (vs.state >= VSS_EPARAM) { vs.cy *= 10; vs.cy += c - '0'; } else { vs.cx *= 10; vs.cx += c - '0'; } } else vs.state = 0; break; } break; } } if (scroll) { scroll = 0; /* scroll check */ if (crtat >= Crtat + vs.nchr) { if (!kernel) { int s = spltty(); if (lock_state & KB_SCROLL) tsleep(&lock_state, PUSER, "pcputc", 0); splx(s); } bcopy(Crtat + vs.ncol, Crtat, (vs.nchr - vs.ncol) * CHR); fillw((vs.at << 8) | ' ', Crtat + vs.nchr - vs.ncol, vs.ncol); crtat -= vs.ncol; } } } async_update(); } /* the unshifted code for KB_SHIFT keys is used by X to distinguish between left and right shift when reading the keyboard map */ static pccons_keymap_t scan_codes[KB_NUM_KEYS] = { /* type unshift shift control altgr shift_altgr scancode */ { KB_NONE, "", "", "", "", "", }, /* 0 unused */ { KB_ASCII, "\033", "\033", "\033", "", "", }, /* 1 ESCape */ { KB_ASCII, "1", "!", "!", "", "", }, /* 2 1 */ { KB_ASCII, "2", "@", "\000", "", "", }, /* 3 2 */ { KB_ASCII, "3", "#", "#", "", "", }, /* 4 3 */ { KB_ASCII, "4", "$", "$", "", "", }, /* 5 4 */ { KB_ASCII, "5", "%", "%", "", "", }, /* 6 5 */ { KB_ASCII, "6", "^", "\036", "", "", }, /* 7 6 */ { KB_ASCII, "7", "&", "&", "", "", }, /* 8 7 */ { KB_ASCII, "8", "*", "\010", "", "", }, /* 9 8 */ { KB_ASCII, "9", "(", "(", "", "", }, /* 10 9 */ { KB_ASCII, "0", ")", ")", "", "", }, /* 11 0 */ { KB_ASCII, "-", "_", "\037", "", "", }, /* 12 - */ { KB_ASCII, "=", "+", "+", "", "", }, /* 13 = */ { KB_ASCII, "\177", "\177", "\010", "", "", }, /* 14 backspace */ { KB_ASCII, "\t", "\t", "\t", "", "", }, /* 15 tab */ { KB_ASCII, "q", "Q", "\021", "", "", }, /* 16 q */ { KB_ASCII, "w", "W", "\027", "", "", }, /* 17 w */ { KB_ASCII, "e", "E", "\005", "", "", }, /* 18 e */ { KB_ASCII, "r", "R", "\022", "", "", }, /* 19 r */ { KB_ASCII, "t", "T", "\024", "", "", }, /* 20 t */ { KB_ASCII, "y", "Y", "\031", "", "", }, /* 21 y */ { KB_ASCII, "u", "U", "\025", "", "", }, /* 22 u */ { KB_ASCII, "i", "I", "\011", "", "", }, /* 23 i */ { KB_ASCII, "o", "O", "\017", "", "", }, /* 24 o */ { KB_ASCII, "p", "P", "\020", "", "", }, /* 25 p */ { KB_ASCII, "[", "{", "\033", "", "", }, /* 26 [ */ { KB_ASCII, "]", "}", "\035", "", "", }, /* 27 ] */ { KB_ASCII, "\r", "\r", "\n", "", "", }, /* 28 return */ { KB_CTL, "", "", "", "", "", }, /* 29 control */ { KB_ASCII, "a", "A", "\001", "", "", }, /* 30 a */ { KB_ASCII, "s", "S", "\023", "", "", }, /* 31 s */ { KB_ASCII, "d", "D", "\004", "", "", }, /* 32 d */ { KB_ASCII, "f", "F", "\006", "", "", }, /* 33 f */ { KB_ASCII, "g", "G", "\007", "", "", }, /* 34 g */ { KB_ASCII, "h", "H", "\010", "", "", }, /* 35 h */ { KB_ASCII, "j", "J", "\n", "", "", }, /* 36 j */ { KB_ASCII, "k", "K", "\013", "", "", }, /* 37 k */ { KB_ASCII, "l", "L", "\014", "", "", }, /* 38 l */ { KB_ASCII, ";", ":", ";", "", "", }, /* 39 ; */ { KB_ASCII, "'", "\"", "'", "", "", }, /* 40 ' */ { KB_ASCII, "`", "~", "`", "", "", }, /* 41 ` */ { KB_SHIFT, "\001", "", "", "", "", }, /* 42 shift */ { KB_ASCII, "\\", "|", "\034", "", "", }, /* 43 \ */ { KB_ASCII, "z", "Z", "\032", "", "", }, /* 44 z */ { KB_ASCII, "x", "X", "\030", "", "", }, /* 45 x */ { KB_ASCII, "c", "C", "\003", "", "", }, /* 46 c */ { KB_ASCII, "v", "V", "\026", "", "", }, /* 47 v */ { KB_ASCII, "b", "B", "\002", "", "", }, /* 48 b */ { KB_ASCII, "n", "N", "\016", "", "", }, /* 49 n */ { KB_ASCII, "m", "M", "\r", "", "", }, /* 50 m */ { KB_ASCII, ",", "<", "<", "", "", }, /* 51 , */ { KB_ASCII, ".", ">", ">", "", "", }, /* 52 . */ { KB_ASCII, "/", "?", "\037", "", "", }, /* 53 / */ { KB_SHIFT, "\002", "", "", "", "", }, /* 54 shift */ { KB_KP, "*", "*", "*", "", "", }, /* 55 kp * */ { KB_ALT, "", "", "", "", "", }, /* 56 alt */ { KB_ASCII, " ", " ", "\000", "", "", }, /* 57 space */ { KB_CAPS, "", "", "", "", "", }, /* 58 caps */ { KB_FUNC, "\033[M", "\033[Y", "\033[k", "", "", }, /* 59 f1 */ { KB_FUNC, "\033[N", "\033[Z", "\033[l", "", "", }, /* 60 f2 */ { KB_FUNC, "\033[O", "\033[a", "\033[m", "", "", }, /* 61 f3 */ { KB_FUNC, "\033[P", "\033[b", "\033[n", "", "", }, /* 62 f4 */ { KB_FUNC, "\033[Q", "\033[c", "\033[o", "", "", }, /* 63 f5 */ { KB_FUNC, "\033[R", "\033[d", "\033[p", "", "", }, /* 64 f6 */ { KB_FUNC, "\033[S", "\033[e", "\033[q", "", "", }, /* 65 f7 */ { KB_FUNC, "\033[T", "\033[f", "\033[r", "", "", }, /* 66 f8 */ { KB_FUNC, "\033[U", "\033[g", "\033[s", "", "", }, /* 67 f9 */ { KB_FUNC, "\033[V", "\033[h", "\033[t", "", "", }, /* 68 f10 */ { KB_NUM, "", "", "", "", "", }, /* 69 num lock */ { KB_SCROLL, "", "", "", "", "", }, /* 70 scroll lock */ { KB_KP, "7", "\033[H", "7", "", "", }, /* 71 kp 7 */ { KB_KP, "8", "\033[A", "8", "", "", }, /* 72 kp 8 */ { KB_KP, "9", "\033[I", "9", "", "", }, /* 73 kp 9 */ { KB_KP, "-", "-", "-", "", "", }, /* 74 kp - */ { KB_KP, "4", "\033[D", "4", "", "", }, /* 75 kp 4 */ { KB_KP, "5", "\033[E", "5", "", "", }, /* 76 kp 5 */ { KB_KP, "6", "\033[C", "6", "", "", }, /* 77 kp 6 */ { KB_KP, "+", "+", "+", "", "", }, /* 78 kp + */ { KB_KP, "1", "\033[F", "1", "", "", }, /* 79 kp 1 */ { KB_KP, "2", "\033[B", "2", "", "", }, /* 80 kp 2 */ { KB_KP, "3", "\033[G", "3", "", "", }, /* 81 kp 3 */ { KB_KP, "0", "\033[L", "0", "", "", }, /* 82 kp 0 */ { KB_KP, ",", "\177", ",", "", "", }, /* 83 kp , */ { KB_NONE, "", "", "", "", "", }, /* 84 0 */ { KB_NONE, "", "", "", "", "", }, /* 85 0 */ { KB_NONE, "", "", "", "", "", }, /* 86 0 */ { KB_FUNC, "\033[W", "\033[i", "\033[u", "", "", }, /* 87 f11 */ { KB_FUNC, "\033[X", "\033[j", "\033[v", "", "", }, /* 88 f12 */ { KB_NONE, "", "", "", "", "", }, /* 89 0 */ { KB_NONE, "", "", "", "", "", }, /* 90 0 */ { KB_NONE, "", "", "", "", "", }, /* 91 0 */ { KB_NONE, "", "", "", "", "", }, /* 92 0 */ { KB_NONE, "", "", "", "", "", }, /* 93 0 */ { KB_NONE, "", "", "", "", "", }, /* 94 0 */ { KB_NONE, "", "", "", "", "", }, /* 95 0 */ { KB_NONE, "", "", "", "", "", }, /* 96 0 */ { KB_NONE, "", "", "", "", "", }, /* 97 0 */ { KB_NONE, "", "", "", "", "", }, /* 98 0 */ { KB_NONE, "", "", "", "", "", }, /* 99 0 */ { KB_NONE, "", "", "", "", "", }, /* 100 */ { KB_NONE, "", "", "", "", "", }, /* 101 */ { KB_NONE, "", "", "", "", "", }, /* 102 */ { KB_NONE, "", "", "", "", "", }, /* 103 */ { KB_NONE, "", "", "", "", "", }, /* 104 */ { KB_NONE, "", "", "", "", "", }, /* 105 */ { KB_NONE, "", "", "", "", "", }, /* 106 */ { KB_NONE, "", "", "", "", "", }, /* 107 */ { KB_NONE, "", "", "", "", "", }, /* 108 */ { KB_NONE, "", "", "", "", "", }, /* 109 */ { KB_NONE, "", "", "", "", "", }, /* 110 */ { KB_NONE, "", "", "", "", "", }, /* 111 */ { KB_NONE, "", "", "", "", "", }, /* 112 */ { KB_NONE, "", "", "", "", "", }, /* 113 */ { KB_NONE, "", "", "", "", "", }, /* 114 */ { KB_NONE, "", "", "", "", "", }, /* 115 */ { KB_NONE, "", "", "", "", "", }, /* 116 */ { KB_NONE, "", "", "", "", "", }, /* 117 */ { KB_NONE, "", "", "", "", "", }, /* 118 */ { KB_NONE, "", "", "", "", "", }, /* 119 */ { KB_NONE, "", "", "", "", "", }, /* 120 */ { KB_NONE, "", "", "", "", "", }, /* 121 */ { KB_NONE, "", "", "", "", "", }, /* 122 */ { KB_NONE, "", "", "", "", "", }, /* 123 */ { KB_NONE, "", "", "", "", "", }, /* 124 */ { KB_NONE, "", "", "", "", "", }, /* 125 */ { KB_NONE, "", "", "", "", "", }, /* 126 */ { KB_NONE, "", "", "", "", "" }, /* 127 */ }; /* * Get characters from the keyboard. If none are present, return NULL. */ char * sget() { u_char dt; static u_char extended = 0, shift_state = 0; static u_char capchar[2]; top: KBD_DELAY; dt = inb(KBDATAP); switch (dt) { case KBR_ACK: ack = 1; goto loop; case KBR_RESEND: nak = 1; goto loop; } #ifdef XSERVER if (pc_xmode > 0) { #if defined(DDB) && defined(XSERVER_DDB) /* F12 enters the debugger while in X mode */ if (dt == 88) Debugger(); #endif capchar[0] = dt; capchar[1] = 0; /* * Check for locking keys. * * XXX Setting the LEDs this way is a bit bogus. What if the * keyboard has been remapped in X? */ switch (scan_codes[dt & 0x7f].type) { case KB_NUM: if (dt & 0x80) { shift_state &= ~KB_NUM; break; } if (shift_state & KB_NUM) break; shift_state |= KB_NUM; lock_state ^= KB_NUM; async_update(); break; case KB_CAPS: if (dt & 0x80) { shift_state &= ~KB_CAPS; break; } if (shift_state & KB_CAPS) break; shift_state |= KB_CAPS; lock_state ^= KB_CAPS; async_update(); break; case KB_SCROLL: if (dt & 0x80) { shift_state &= ~KB_SCROLL; break; } if (shift_state & KB_SCROLL) break; shift_state |= KB_SCROLL; lock_state ^= KB_SCROLL; if ((lock_state & KB_SCROLL) == 0) wakeup(&lock_state); async_update(); break; } return capchar; } #endif /* XSERVER */ switch (dt) { case KBR_EXTENDED: extended = 1; goto loop; } #ifdef DDB /* * Check for cntl-alt-esc. */ if ((dt == 1) && (shift_state & (KB_CTL | KB_ALT)) == (KB_CTL | KB_ALT)) { screen_restore(1); Debugger(); dt |= 0x80; /* discard esc (ddb discarded ctl-alt) */ } #endif screen_restore(0); /* * Check for make/break. */ if (dt & 0x80) { /* * break */ dt &= 0x7f; switch (scan_codes[dt].type) { case KB_NUM: shift_state &= ~KB_NUM; break; case KB_CAPS: shift_state &= ~KB_CAPS; break; case KB_SCROLL: shift_state &= ~KB_SCROLL; break; case KB_SHIFT: shift_state &= ~KB_SHIFT; break; case KB_ALT: if (extended) shift_state &= ~KB_ALTGR; else shift_state &= ~KB_ALT; break; case KB_CTL: shift_state &= ~KB_CTL; break; } } else { /* * make */ switch (scan_codes[dt].type) { /* * locking keys */ case KB_NUM: if (shift_state & KB_NUM) break; shift_state |= KB_NUM; lock_state ^= KB_NUM; async_update(); break; case KB_CAPS: if (shift_state & KB_CAPS) break; shift_state |= KB_CAPS; lock_state ^= KB_CAPS; async_update(); break; case KB_SCROLL: if (shift_state & KB_SCROLL) break; shift_state |= KB_SCROLL; lock_state ^= KB_SCROLL; if ((lock_state & KB_SCROLL) == 0) wakeup(&lock_state); async_update(); break; /* * non-locking keys */ case KB_SHIFT: shift_state |= KB_SHIFT; break; case KB_ALT: if (extended) shift_state |= KB_ALTGR; else shift_state |= KB_ALT; break; case KB_CTL: shift_state |= KB_CTL; break; case KB_ASCII: /* control has highest priority */ if (shift_state & KB_CTL) capchar[0] = scan_codes[dt].ctl[0]; else if (shift_state & KB_ALTGR) { if (shift_state & KB_SHIFT) capchar[0] = scan_codes[dt].shift_altgr[0]; else capchar[0] = scan_codes[dt].altgr[0]; } else { if (shift_state & KB_SHIFT) capchar[0] = scan_codes[dt].shift[0]; else capchar[0] = scan_codes[dt].unshift[0]; } if ((lock_state & KB_CAPS) && capchar[0] >= 'a' && capchar[0] <= 'z') { capchar[0] -= ('a' - 'A'); } capchar[0] |= (shift_state & KB_ALT); extended = 0; return capchar; case KB_NONE: break; case KB_FUNC: { char *more_chars; if (shift_state & KB_SHIFT) more_chars = scan_codes[dt].shift; else if (shift_state & KB_CTL) more_chars = scan_codes[dt].ctl; else more_chars = scan_codes[dt].unshift; extended = 0; return more_chars; } case KB_KP: { char *more_chars; if (shift_state & (KB_SHIFT | KB_CTL) || (lock_state & KB_NUM) == 0 || extended) more_chars = scan_codes[dt].shift; else more_chars = scan_codes[dt].unshift; extended = 0; return more_chars; } } } extended = 0; loop: if ((inb(KBSTATP) & KBS_DIB) == 0) return 0; goto top; } int pcmmap(dev, offset, nprot) dev_t dev; int offset; int nprot; { if (offset > 0x20000) return -1; return i386_btop(0xa0000 + offset); } #ifdef XSERVER void pc_xmode_on() { struct trapframe *fp; if (pc_xmode) return; pc_xmode = 1; screen_restore(1); #ifdef XFREE86_BUG_COMPAT /* If still unchanged, get current shape. */ if (cursor_shape == 0xffff) get_cursor_shape(); #endif #ifdef COMPAT_10 /* This is done by i386_iopl(3) now. */ fp = curproc->p_md.md_regs; fp->tf_eflags |= PSL_IOPL; #endif } void pc_xmode_off() { struct trapframe *fp; if (pc_xmode == 0) return; pc_xmode = 0; #ifdef XFREE86_BUG_COMPAT /* XXX It would be hard to justify why the X server doesn't do this. */ set_cursor_shape(); #endif async_update(); screen_restore(0); fp = curproc->p_md.md_regs; fp->tf_eflags &= ~PSL_IOPL; } #endif /* XSERVER */