1564 lines
34 KiB
C
1564 lines
34 KiB
C
/*-
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* Copyright (c) 1993, 1994 Charles Hannum.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz and Don Ahn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)pccons.c 5.11 (Berkeley) 5/21/91
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* $Id: pccons.c,v 1.62 1994/04/07 06:51:08 mycroft Exp $
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*/
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/*
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* code to work keyboard & display for PC-style console
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*/
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#include "pc.h"
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/select.h>
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#include <sys/tty.h>
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#include <sys/uio.h>
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#include <sys/callout.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <machine/pio.h>
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#include <machine/pc/display.h>
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#include <machine/pccons.h>
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#include <i386/isa/isa.h>
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#include <i386/isa/isavar.h>
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#include <i386/isa/icu.h>
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#include <i386/isa/kbdreg.h>
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#define XFREE86_BUG_COMPAT
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#ifndef BEEP_FREQ
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#define BEEP_FREQ 1500
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#endif
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#ifndef BEEP_TIME
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#define BEEP_TIME (hz/5)
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#endif
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#define PCBURST 128
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extern u_short *Crtat; /* pointer to backing store */
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static u_short *crtat; /* pointer to current char */
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static volatile u_char ack, nak; /* Don't ask. */
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static u_char async, kernel, polling; /* Really, you don't want to know. */
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static u_char lock_state, /* all off */
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old_lock_state = 0xff,
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typematic_rate = 0xff, /* don't update until set by user */
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old_typematic_rate = 0xff;
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static u_short cursor_shape, /* cursor shape */
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old_cursor_shape = 0xffff;
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int pc_xmode = 0;
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#define PCUNIT(x) (minor(x))
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struct tty *pc_tty[NPC];
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static struct video_state {
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int cx, cy; /* escape parameters */
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int row, col; /* current cursor position */
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int nrow, ncol, nchr; /* current screen geometry */
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u_char state; /* parser state */
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#define VSS_ESCAPE 1
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#define VSS_EBRACE 2
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#define VSS_EPARAM 3
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char so; /* in standout mode? */
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char color; /* color or mono display */
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char at; /* normal attributes */
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char so_at; /* standout attributes */
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} vs;
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int pcprobe();
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void pcattach();
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int pcrint();
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struct cfdriver pccd = {
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NULL, "pc", pcprobe, pcattach, DV_TTY, sizeof(struct device)
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};
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#define COL 80
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#define ROW 25
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#define CHR 2
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/*
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* DANGER WIL ROBINSON -- the values of SCROLL, NUM, CAPS, and ALT are
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* important.
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*/
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#define SCROLL 0x0001 /* stop output */
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#define NUM 0x0002 /* numeric shift cursors vs. numeric */
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#define CAPS 0x0004 /* caps shift -- swaps case of letter */
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#define SHIFT 0x0008 /* keyboard shift */
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#define CTL 0x0010 /* control shift -- allows ctl function */
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#define ASCII 0x0020 /* ascii code for this key */
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#define ALT 0x0080 /* alternate shift -- alternate chars */
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#define FUNC 0x0100 /* function key */
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#define KP 0x0200 /* Keypad keys */
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#define NONE 0x0400 /* no function */
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static unsigned int addr_6845 = MONO_BASE;
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char *sget __P((void));
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void sput __P((u_char *, int));
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void pcstart();
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int pcparam();
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char partab[];
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extern pcopen(dev_t, int, int, struct proc *);
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static inline int
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kbd_wait()
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{
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u_int i;
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for (i = 100000; i; i--)
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if ((inb(KBSTATP) & KBS_IBF) == 0)
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return 1;
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return 0;
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}
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#if 1
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/*
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* Get the current command byte.
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*/
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static u_char
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kbc_get8042cmd()
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{
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if (!kbd_wait())
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return -1;
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outb(KBCMDP, K_RDCMDBYTE);
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if (!kbd_wait())
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return -1;
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return inb(KBDATAP);
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}
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#endif
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/*
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* Pass command byte to keyboard controller (8042).
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*/
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static int
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kbc_put8042cmd(val)
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u_char val;
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{
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if (!kbd_wait())
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return 0;
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outb(KBCMDP, K_LDCMDBYTE);
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if (!kbd_wait())
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return 0;
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outb(KBOUTP, val);
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return 1;
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}
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/*
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* Pass command to keyboard itself
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*/
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int
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kbd_cmd(val, polling)
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u_char val;
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u_char polling;
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{
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u_int retries = 3;
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register u_int i;
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do {
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if (!kbd_wait())
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return 0;
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ack = nak = 0;
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outb(KBOUTP, val);
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if (polling)
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for (i = 100000; i; i--) {
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if (inb(KBSTATP) & KBS_DIB) {
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register u_char c;
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c = inb(KBDATAP);
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if (c == KBR_ACK || c == KBR_ECHO) {
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ack = 1;
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return 1;
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}
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if (c == KBR_RESEND) {
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nak = 1;
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break;
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}
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#ifdef DIAGNOSTIC
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printf("kbd_cmd: input char %x lost\n", c);
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#endif
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}
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}
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else
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for (i = 100000; i; i--) {
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if (ack)
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return 1;
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if (nak)
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break;
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}
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if (!nak)
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return 0;
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} while (--retries);
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return 0;
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}
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void
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set_cursor_shape()
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{
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register u_short iobase = addr_6845;
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outb(iobase, 10);
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outb(iobase+1, cursor_shape>>8);
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outb(iobase, 11);
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outb(iobase+1, cursor_shape);
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old_cursor_shape = cursor_shape;
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}
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void
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do_async_update(poll)
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u_char poll;
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{
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int pos;
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static int old_pos = -1;
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async = 0;
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if (lock_state != old_lock_state) {
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old_lock_state = lock_state;
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if (!kbd_cmd(KBC_MODEIND, poll) ||
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!kbd_cmd(lock_state, poll)) {
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printf("pc: timeout updating leds\n");
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(void) kbd_cmd(KBC_ENABLE, poll);
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}
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}
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if (typematic_rate != old_typematic_rate) {
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old_typematic_rate = typematic_rate;
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if (!kbd_cmd(KBC_TYPEMATIC, poll) ||
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!kbd_cmd(typematic_rate, poll)) {
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printf("pc: timeout updating typematic rate\n");
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(void) kbd_cmd(KBC_ENABLE, poll);
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}
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}
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if (pc_xmode > 0)
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return;
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pos = crtat - Crtat;
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if (pos != old_pos) {
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register u_short iobase = addr_6845;
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outb(iobase, 14);
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outb(iobase+1, pos>>8);
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outb(iobase, 15);
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outb(iobase+1, pos);
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old_pos = pos;
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}
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if (cursor_shape != old_cursor_shape)
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set_cursor_shape();
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}
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void
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async_update()
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{
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if (kernel || polling) {
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if (async)
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untimeout((timeout_t)do_async_update, 0);
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do_async_update(1);
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} else {
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if (async)
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return;
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async = 1;
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timeout((timeout_t)do_async_update, 0, 1);
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}
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}
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/*
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* these are both bad jokes
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*/
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int
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pcprobe(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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u_char c;
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/* Enable interrupts and keyboard, etc. */
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if (!kbc_put8042cmd(CMDBYTE)) {
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printf("pcprobe: command error\n");
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return 0;
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}
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#if 1
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/* Flush any garbage. */
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while (inb(KBSTATP) & KBS_DIB)
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(void) inb(KBDATAP);
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/* Reset the keyboard. */
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if (!kbd_cmd(KBC_RESET, 1)) {
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printf("pcprobe: reset error %d\n", 1);
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goto lose;
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}
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while ((inb(KBSTATP) & KBS_DIB) == 0);
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if (inb(KBDATAP) != KBR_RSTDONE) {
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printf("pcprobe: reset error %d\n", 2);
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goto lose;
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}
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/*
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* Some keyboards seem to leave a second ack byte after the reset.
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* This is kind of stupid, but we account for them anyway by just
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* flushing the buffer.
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*/
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while (inb(KBSTATP) & KBS_DIB)
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(void) inb(KBDATAP);
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/* Just to be sure. */
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if (!kbd_cmd(KBC_ENABLE, 1)) {
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printf("pcprobe: reset error %d\n", 3);
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goto lose;
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}
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/*
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* Some keyboard/8042 combinations do not seem to work if the keyboard
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* is set to table 1; in fact, it would appear that some keyboards just
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* ignore the command altogether. So by default, we use the AT scan
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* codes and have the 8042 translate them. Unfortunately, this is
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* known to not work on some PS/2 machines. We try desparately to deal
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* with this by checking the (lack of a) translate bit in the 8042 and
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* attempting to set the keyboard to XT mode. If this all fails, well,
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* tough luck.
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*
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* XXX It would perhaps be a better choice to just use AT scan codes
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* and not bother with this.
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*/
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if (kbc_get8042cmd() & KC8_TRANS) {
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/* The 8042 is translating for us; use AT codes. */
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if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(2, 1)) {
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printf("pcprobe: reset error %d\n", 4);
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goto lose;
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}
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} else {
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/* Stupid 8042; set keyboard to XT codes. */
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if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(1, 1)) {
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printf("pcprobe: reset error %d\n", 5);
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goto lose;
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}
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}
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lose:
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/*
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* Technically, we should probably fail the probe. But we'll be nice
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* and allow keyboard-less machines to boot with the console.
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*/
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#endif
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ia->ia_iosize = 16;
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ia->ia_msize = 0;
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return 1;
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}
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void
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pcattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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static struct intrhand pchand;
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printf(": %s\n", vs.color ? "color" : "mono");
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do_async_update(1);
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pchand.ih_fun = pcrint;
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pchand.ih_arg = 0;
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pchand.ih_level = IPL_TTY;
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intr_establish(ia->ia_irq, &pchand);
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}
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int
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pcopen(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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int unit = PCUNIT(dev);
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struct tty *tp;
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if (unit >= pccd.cd_ndevs)
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return ENXIO;
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if (!pc_tty[unit])
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tp = pc_tty[unit] = ttymalloc();
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else
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tp = pc_tty[unit];
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tp->t_oproc = pcstart;
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tp->t_param = pcparam;
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tp->t_dev = dev;
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if ((tp->t_state & TS_ISOPEN) == 0) {
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tp->t_state |= TS_WOPEN;
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ttychars(tp);
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tp->t_iflag = TTYDEF_IFLAG;
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tp->t_oflag = TTYDEF_OFLAG;
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tp->t_cflag = TTYDEF_CFLAG;
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tp->t_lflag = TTYDEF_LFLAG;
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tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
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pcparam(tp, &tp->t_termios);
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ttsetwater(tp);
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} else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0)
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return EBUSY;
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tp->t_state |= TS_CARR_ON;
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return ((*linesw[tp->t_line].l_open)(dev, tp));
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}
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int
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pcclose(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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register struct tty *tp = pc_tty[PCUNIT(dev)];
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(*linesw[tp->t_line].l_close)(tp, flag);
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ttyclose(tp);
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#ifdef notyet /* XXX */
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ttyfree(tp);
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#endif
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return(0);
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}
|
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|
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int
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pcread(dev, uio, flag)
|
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dev_t dev;
|
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struct uio *uio;
|
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int flag;
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{
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register struct tty *tp = pc_tty[PCUNIT(dev)];
|
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|
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return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
|
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}
|
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|
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int
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pcwrite(dev, uio, flag)
|
|
dev_t dev;
|
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struct uio *uio;
|
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int flag;
|
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{
|
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register struct tty *tp = pc_tty[PCUNIT(dev)];
|
|
|
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return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
|
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}
|
|
|
|
/*
|
|
* Got a console receive interrupt -
|
|
* the console processor wants to give us a character.
|
|
* Catch the character, and see who it goes to.
|
|
*/
|
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int
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|
pcrint()
|
|
{
|
|
register struct tty *tp = pc_tty[0]; /* XXX */
|
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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
|
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(*linesw[tp->t_line].l_rint)(*cp++, tp);
|
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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((timeout_t)ttrstrt, (caddr_t)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;
|
|
{
|
|
register int s;
|
|
register char *cp;
|
|
u_char oldpolling = polling;
|
|
|
|
if (pc_xmode > 0)
|
|
return 0;
|
|
|
|
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:
|
|
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_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_regs;
|
|
fp->tf_eflags &= ~PSL_IOPL;
|
|
}
|