/*- * Copyright (c) 1993, 1994 Charles Hannum. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz and Don Ahn. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: @(#)pccons.c 5.11 (Berkeley) 5/21/91 * $Id: pccons.c,v 1.65.2.3 1994/10/16 19:56:01 cgd Exp $ */ /* * code to work keyboard & display for PC-style console */ #include "pc.h" #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 extern 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, /* 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, /* cursor shape */ old_cursor_shape = 0xffff; int pc_xmode = 0; #define PCUNIT(x) (minor(x)) struct tty *pc_tty[NPC]; static struct video_state { int cx, cy; /* escape parameters */ int row, col; /* current cursor position */ int nrow, ncol, nchr; /* current screen geometry */ 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; int pcprobe(); void pcattach(); int pcrint(); struct cfdriver pccd = { NULL, "pc", pcprobe, pcattach, DV_TTY, sizeof(struct device) }; #define COL 80 #define ROW 25 #define CHR 2 /* * DANGER WIL ROBINSON -- the values of SCROLL, NUM, CAPS, and ALT are * important. */ #define SCROLL 0x0001 /* stop output */ #define NUM 0x0002 /* numeric shift cursors vs. numeric */ #define CAPS 0x0004 /* caps shift -- swaps case of letter */ #define SHIFT 0x0008 /* keyboard shift */ #define CTL 0x0010 /* control shift -- allows ctl function */ #define ASCII 0x0020 /* ascii code for this key */ #define ALT 0x0080 /* alternate shift -- alternate chars */ #define FUNC 0x0100 /* function key */ #define KP 0x0200 /* Keypad keys */ #define NONE 0x0400 /* no function */ static unsigned int addr_6845 = MONO_BASE; char *sget __P((void)); void sput __P((u_char *, int)); void pcstart(); int pcparam(); char partab[]; extern pcopen(dev_t, int, int, struct proc *); #define KBD_DELAY \ { delay(6); } 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() { register u_short iobase = addr_6845; outb(iobase, 10); outb(iobase+1, cursor_shape>>8); outb(iobase, 11); outb(iobase+1, cursor_shape); old_cursor_shape = cursor_shape; } void do_async_update(poll) u_char poll; { 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); } } if (pc_xmode > 0) return; pos = crtat - Crtat; if (pos != old_pos) { register u_short iobase = addr_6845; outb(iobase, 14); outb(iobase+1, pos>>8); outb(iobase, 15); 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(1); } else { if (async) return; async = 1; timeout(do_async_update, NULL, 1); } } /* * these are both bad jokes */ int pcprobe(parent, self, aux) struct device *parent, *self; void *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)) { printf("pcprobe: reset error %d\n", 1); goto lose; } for (i = 600000; i; i--) if ((inb(KBSTATP) & KBS_DIB) != 0) { KBD_DELAY; break; } if (i == 0 || inb(KBDATAP) != KBR_RSTDONE) { printf("pcprobe: reset error %d\n", 2); goto lose; } /* * 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 isa_attach_args *ia = aux; static struct intrhand pchand; printf(": %s\n", vs.color ? "color" : "mono"); do_async_update(1); pchand.ih_fun = pcrint; pchand.ih_arg = 0; pchand.ih_level = IPL_TTY; intr_establish(ia->ia_irq, &pchand); } int pcopen(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { int unit = PCUNIT(dev); struct tty *tp; if (unit >= pccd.cd_ndevs || !pccd.cd_devs[unit]) return ENXIO; if (!pc_tty[unit]) tp = pc_tty[unit] = ttymalloc(); else tp = pc_tty[unit]; 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; { register struct tty *tp = pc_tty[PCUNIT(dev)]; (*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; { register struct tty *tp = pc_tty[PCUNIT(dev)]; return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); } int pcwrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { register struct tty *tp = pc_tty[PCUNIT(dev)]; return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); } /* * Got a console receive interrupt - * the console processor wants to give us a character. * Catch the character, and see who it goes to. */ int pcrint() { register struct tty *tp = pc_tty[0]; /* XXX */ 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; int cmd; caddr_t data; int flag; struct proc *p; { struct tty *tp = pc_tty[PCUNIT(dev)]; 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) { 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; 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; } default: return ENOTTY; } #ifdef DIAGNOSTIC panic("pcioctl: impossible"); #endif } void pcstart(tp) struct tty *tp; { struct clist *cl; int s, len, n; 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. * The tty is locked, so it shouldn't get corrupted. */ 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((caddr_t)cl); } selwakeup(&tp->t_wsel); } out: splx(s); } 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 */ pccninit(cp) struct consdev *cp; { /* * For now, don't screw with it. */ /* crtat = 0; */ } /* ARGSUSED */ 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 */ pccngetc(dev) dev_t dev; { u_char oldpolling; register char *cp; if (pc_xmode > 0) return 0; oldpolling = polling; polling = 1; do { /* wait for byte */ while ((inb(KBSTATP) & KBS_DIB) == 0); /* see if it's worthwhile */ cp = sget(); } while (!cp); polling = oldpolling; if (*cp == '\r') return '\n'; return *cp; } /* * 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; } #ifdef KDB /* * Turn input polling on/off (used by debugger). */ pcpoll(onoff) int onoff; { } #endif #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 }; /* * `pc3' termcap emulation. */ void sput(cp, n) u_char *cp; int n; { u_char c, scroll = 0; if (pc_xmode > 0) return; if (crtat == 0) { u_short volatile *cp = Crtat + (CGA_BUF-MONO_BUF)/CHR; u_short was; unsigned cursorat; /* * Crtat initialized to point to MONO buffer if not present * change to CGA_BUF offset ONLY ADD the difference since * locore.s adds in the remapped offset at the right time */ was = *cp; *cp = (u_short) 0xA55A; if (*cp != 0xA55A) { addr_6845 = MONO_BASE; vs.color=0; } else { *cp = was; addr_6845 = CGA_BASE; Crtat = Crtat + (CGA_BUF-MONO_BUF)/CHR; vs.color=1; } /* Extract cursor location */ outb(addr_6845, 14); cursorat = inb(addr_6845+1) << 8; outb(addr_6845, 15); cursorat |= inb(addr_6845+1); #ifdef FAT_CURSOR cursor_shape = 0x0012; #else /* Extract cursor shape */ outb(addr_6845, 10); cursor_shape = inb(addr_6845+1) << 8; outb(addr_6845, 11); 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; cursor_shape &= 0x1f1f; #endif crtat = Crtat + 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); } 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 '\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 '\010': 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: bypass: 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 (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: if (c == '[') { /* Start ESC [ sequence */ vs.cx = vs.cy = 0; vs.state = VSS_EBRACE; } else if (c == 'c') { /* Clear screen & home */ fillw((vs.at << 8) | ' ', Crtat, vs.nchr); crtat = Crtat; vs.col = 0; vs.state = 0; } else { /* 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); /* crtat -= vs.ncol * cx; /* XXX */ 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); /* crtat += vs.ncol * cx; /* XXX */ 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 '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 & SCROLL) tsleep((caddr_t)&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(); } #define CODE_SIZE 4 /* Use a max of 4 for now... */ typedef struct { u_short type; char unshift[CODE_SIZE]; char shift[CODE_SIZE]; char ctl[CODE_SIZE]; } Scan_def; static Scan_def scan_codes[] = { NONE, "", "", "", /* 0 unused */ ASCII, "\033", "\033", "\033", /* 1 ESCape */ ASCII, "1", "!", "!", /* 2 1 */ ASCII, "2", "@", "\000", /* 3 2 */ ASCII, "3", "#", "#", /* 4 3 */ ASCII, "4", "$", "$", /* 5 4 */ ASCII, "5", "%", "%", /* 6 5 */ ASCII, "6", "^", "\036", /* 7 6 */ ASCII, "7", "&", "&", /* 8 7 */ ASCII, "8", "*", "\010", /* 9 8 */ ASCII, "9", "(", "(", /* 10 9 */ ASCII, "0", ")", ")", /* 11 0 */ ASCII, "-", "_", "\037", /* 12 - */ ASCII, "=", "+", "+", /* 13 = */ ASCII, "\177", "\177", "\010", /* 14 backspace */ ASCII, "\t", "\177\t", "\t", /* 15 tab */ ASCII, "q", "Q", "\021", /* 16 q */ ASCII, "w", "W", "\027", /* 17 w */ ASCII, "e", "E", "\005", /* 18 e */ ASCII, "r", "R", "\022", /* 19 r */ ASCII, "t", "T", "\024", /* 20 t */ ASCII, "y", "Y", "\031", /* 21 y */ ASCII, "u", "U", "\025", /* 22 u */ ASCII, "i", "I", "\011", /* 23 i */ ASCII, "o", "O", "\017", /* 24 o */ ASCII, "p", "P", "\020", /* 25 p */ ASCII, "[", "{", "\033", /* 26 [ */ ASCII, "]", "}", "\035", /* 27 ] */ ASCII, "\r", "\r", "\n", /* 28 return */ CTL, "", "", "", /* 29 control */ ASCII, "a", "A", "\001", /* 30 a */ ASCII, "s", "S", "\023", /* 31 s */ ASCII, "d", "D", "\004", /* 32 d */ ASCII, "f", "F", "\006", /* 33 f */ ASCII, "g", "G", "\007", /* 34 g */ ASCII, "h", "H", "\010", /* 35 h */ ASCII, "j", "J", "\n", /* 36 j */ ASCII, "k", "K", "\013", /* 37 k */ ASCII, "l", "L", "\014", /* 38 l */ ASCII, ";", ":", ";", /* 39 ; */ ASCII, "'", "\"", "'", /* 40 ' */ ASCII, "`", "~", "`", /* 41 ` */ SHIFT, "", "", "", /* 42 shift */ ASCII, "\\", "|", "\034", /* 43 \ */ ASCII, "z", "Z", "\032", /* 44 z */ ASCII, "x", "X", "\030", /* 45 x */ ASCII, "c", "C", "\003", /* 46 c */ ASCII, "v", "V", "\026", /* 47 v */ ASCII, "b", "B", "\002", /* 48 b */ ASCII, "n", "N", "\016", /* 49 n */ ASCII, "m", "M", "\r", /* 50 m */ ASCII, ",", "<", "<", /* 51 , */ ASCII, ".", ">", ">", /* 52 . */ ASCII, "/", "?", "\037", /* 53 / */ SHIFT, "", "", "", /* 54 shift */ KP, "*", "*", "*", /* 55 kp * */ ALT, "", "", "", /* 56 alt */ ASCII, " ", " ", "\000", /* 57 space */ CAPS, "", "", "", /* 58 caps */ FUNC, "\033[M", "\033[Y", "\033[k", /* 59 f1 */ FUNC, "\033[N", "\033[Z", "\033[l", /* 60 f2 */ FUNC, "\033[O", "\033[a", "\033[m", /* 61 f3 */ FUNC, "\033[P", "\033[b", "\033[n", /* 62 f4 */ FUNC, "\033[Q", "\033[c", "\033[o", /* 63 f5 */ FUNC, "\033[R", "\033[d", "\033[p", /* 64 f6 */ FUNC, "\033[S", "\033[e", "\033[q", /* 65 f7 */ FUNC, "\033[T", "\033[f", "\033[r", /* 66 f8 */ FUNC, "\033[U", "\033[g", "\033[s", /* 67 f9 */ FUNC, "\033[V", "\033[h", "\033[t", /* 68 f10 */ NUM, "", "", "", /* 69 num lock */ SCROLL, "", "", "", /* 70 scroll lock */ KP, "7", "\033[H", "7", /* 71 kp 7 */ KP, "8", "\033[A", "8", /* 72 kp 8 */ KP, "9", "\033[I", "9", /* 73 kp 9 */ KP, "-", "-", "-", /* 74 kp - */ KP, "4", "\033[D", "4", /* 75 kp 4 */ KP, "5", "\033[E", "5", /* 76 kp 5 */ KP, "6", "\033[C", "6", /* 77 kp 6 */ KP, "+", "+", "+", /* 78 kp + */ KP, "1", "\033[F", "1", /* 79 kp 1 */ KP, "2", "\033[B", "2", /* 80 kp 2 */ KP, "3", "\033[G", "3", /* 81 kp 3 */ KP, "0", "\033[L", "0", /* 82 kp 0 */ KP, ".", "\177", ".", /* 83 kp . */ NONE, "", "", "", /* 84 0 */ NONE, "100", "", "", /* 85 0 */ NONE, "101", "", "", /* 86 0 */ FUNC, "\033[W", "\033[i", "\033[u", /* 87 f11 */ FUNC, "\033[X", "\033[j", "\033[v", /* 88 f12 */ NONE, "102", "", "", /* 89 0 */ NONE, "103", "", "", /* 90 0 */ NONE, "", "", "", /* 91 0 */ NONE, "", "", "", /* 92 0 */ NONE, "", "", "", /* 93 0 */ NONE, "", "", "", /* 94 0 */ NONE, "", "", "", /* 95 0 */ NONE, "", "", "", /* 96 0 */ NONE, "", "", "", /* 97 0 */ NONE, "", "", "", /* 98 0 */ NONE, "", "", "", /* 99 0 */ NONE, "", "", "", /* 100 */ NONE, "", "", "", /* 101 */ NONE, "", "", "", /* 102 */ NONE, "", "", "", /* 103 */ NONE, "", "", "", /* 104 */ NONE, "", "", "", /* 105 */ NONE, "", "", "", /* 106 */ NONE, "", "", "", /* 107 */ NONE, "", "", "", /* 108 */ NONE, "", "", "", /* 109 */ NONE, "", "", "", /* 110 */ NONE, "", "", "", /* 111 */ NONE, "", "", "", /* 112 */ NONE, "", "", "", /* 113 */ NONE, "", "", "", /* 114 */ NONE, "", "", "", /* 115 */ NONE, "", "", "", /* 116 */ NONE, "", "", "", /* 117 */ NONE, "", "", "", /* 118 */ NONE, "", "", "", /* 119 */ NONE, "", "", "", /* 120 */ NONE, "", "", "", /* 121 */ NONE, "", "", "", /* 122 */ NONE, "", "", "", /* 123 */ NONE, "", "", "", /* 124 */ NONE, "", "", "", /* 125 */ NONE, "", "", "", /* 126 */ 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; } 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 NUM: if (dt & 0x80) { shift_state &= ~NUM; break; } if (shift_state & NUM) break; shift_state |= NUM; lock_state ^= NUM; async_update(); break; case CAPS: if (dt & 0x80) { shift_state &= ~CAPS; break; } if (shift_state & CAPS) break; shift_state |= CAPS; lock_state ^= CAPS; async_update(); break; case SCROLL: if (dt & 0x80) { shift_state &= ~SCROLL; break; } if (shift_state & SCROLL) break; shift_state |= SCROLL; lock_state ^= SCROLL; if ((lock_state & SCROLL) == 0) wakeup((caddr_t)&lock_state); async_update(); break; } return capchar; } switch (dt) { case KBR_EXTENDED: extended = 1; goto loop; } #ifdef DDB /* * Check for cntl-alt-esc. */ if ((dt == 1) && (shift_state & (CTL | ALT)) == (CTL | ALT)) { Debugger(); dt |= 0x80; /* discard esc (ddb discarded ctl-alt) */ } #endif /* * Check for make/break. */ if (dt & 0x80) { /* * break */ dt &= 0x7f; switch (scan_codes[dt].type) { case NUM: shift_state &= ~NUM; break; case CAPS: shift_state &= ~CAPS; break; case SCROLL: shift_state &= ~SCROLL; break; case SHIFT: shift_state &= ~SHIFT; break; case ALT: shift_state &= ~ALT; break; case CTL: shift_state &= ~CTL; break; } } else { /* * make */ switch (scan_codes[dt].type) { /* * locking keys */ case NUM: if (shift_state & NUM) break; shift_state |= NUM; lock_state ^= NUM; async_update(); break; case CAPS: if (shift_state & CAPS) break; shift_state |= CAPS; lock_state ^= CAPS; async_update(); break; case SCROLL: if (shift_state & SCROLL) break; shift_state |= SCROLL; lock_state ^= SCROLL; if ((lock_state & SCROLL) == 0) wakeup((caddr_t)&lock_state); async_update(); break; /* * non-locking keys */ case SHIFT: shift_state |= SHIFT; break; case ALT: shift_state |= ALT; break; case CTL: shift_state |= CTL; break; case ASCII: /* control has highest priority */ if (shift_state & CTL) capchar[0] = scan_codes[dt].ctl[0]; else if (shift_state & SHIFT) capchar[0] = scan_codes[dt].shift[0]; else capchar[0] = scan_codes[dt].unshift[0]; if ((lock_state & CAPS) && capchar[0] >= 'a' && capchar[0] <= 'z') { capchar[0] -= ('a' - 'A'); } capchar[0] |= (shift_state & ALT); extended = 0; return capchar; case NONE: break; case FUNC: { char *more_chars; if (shift_state & SHIFT) more_chars = scan_codes[dt].shift; else if (shift_state & CTL) more_chars = scan_codes[dt].ctl; else more_chars = scan_codes[dt].unshift; extended = 0; return more_chars; } case KP: { char *more_chars; if (shift_state & (SHIFT | CTL) || (lock_state & 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); } pc_xmode_on() { struct trapframe *fp; if (pc_xmode) return; pc_xmode = 1; fp = (struct trapframe *)curproc->p_md.md_regs; fp->tf_eflags |= PSL_IOPL; } 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(); fp = (struct trapframe *)curproc->p_md.md_regs; fp->tf_eflags &= ~PSL_IOPL; }