patch-1.3.45 linux/arch/ppc/kernel/raw_printf.c
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- Lines: 1188
- Date:
Tue Nov 7 02:40:53 1995
- Orig file:
v1.3.44/linux/arch/ppc/kernel/raw_printf.c
- Orig date:
Thu Jan 1 02:00:00 1970
diff -u --recursive --new-file v1.3.44/linux/arch/ppc/kernel/raw_printf.c linux/arch/ppc/kernel/raw_printf.c
@@ -0,0 +1,1187 @@
+#define FALSE 0
+#define TRUE 1
+#include <stdarg.h>
+
+extern void cnputc(char c);
+
+static char *_sprintk_ptr;
+
+static _sputc(char c)
+{
+ *_sprintk_ptr++ = c;
+ *_sprintk_ptr = '\0';
+}
+
+_sprintk(char *buf, char const *fmt, ...)
+{
+ int ret;
+ va_list ap;
+
+ va_start(ap, fmt);
+ _sprintk_ptr = buf;
+ ret = _vprintk(_sputc, fmt, ap);
+ va_end(ap);
+ return (ret);
+}
+
+_vsprintk(char *buf, char const *fmt, va_list ap)
+{
+ int ret;
+
+ _sprintk_ptr = buf;
+ ret = _vprintk(_sputc, fmt, ap);
+ return (ret);
+}
+
+_printk(char const *fmt, ...)
+{
+ int ret;
+ va_list ap;
+
+ va_start(ap, fmt);
+ ret = _vprintk(cnputc, fmt, ap);
+ va_end(ap);
+ return (ret);
+}
+
+#define is_digit(c) ((c >= '0') && (c <= '9'))
+
+int
+_vprintk(putc, fmt0, ap)
+ int (*putc)();
+ const char *fmt0;
+ va_list ap;
+{
+ char c, sign, *cp;
+ int left_prec, right_prec, zero_fill, length, pad, pad_on_right;
+ char buf[32];
+ long val;
+ while (c = *fmt0++)
+ {
+ if (c == '%')
+ {
+ c = *fmt0++;
+ left_prec = right_prec = pad_on_right = 0;
+ if (c == '-')
+ {
+ c = *fmt0++;
+ pad_on_right++;
+ }
+ if (c == '0')
+ {
+ zero_fill = TRUE;
+ c = *fmt0++;
+ } else
+ {
+ zero_fill = FALSE;
+ }
+ while (is_digit(c))
+ {
+ left_prec = (left_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ if (c == '.')
+ {
+ c = *fmt0++;
+ zero_fill++;
+ while (is_digit(c))
+ {
+ right_prec = (right_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ } else
+ {
+ right_prec = left_prec;
+ }
+ sign = '\0';
+ switch (c)
+ {
+ case 'd':
+ case 'x':
+ case 'X':
+ val = va_arg(ap, long);
+ switch (c)
+ {
+ case 'd':
+ if (val < 0)
+ {
+ sign = '-';
+ val = -val;
+ }
+ length = _cvt(val, buf, 10, "0123456789");
+ break;
+ case 'x':
+ length = _cvt(val, buf, 16, "0123456789abcdef");
+ break;
+ case 'X':
+ length = _cvt(val, buf, 16, "0123456789ABCDEF");
+ break;
+ }
+ cp = buf;
+ break;
+ case 's':
+ cp = va_arg(ap, char *);
+ length = strlen(cp);
+ break;
+ case 'c':
+ c = va_arg(ap, long /*char*/);
+ (*putc)(c);
+ continue;
+ default:
+ (*putc)('?');
+ }
+ pad = left_prec - length;
+ if (sign != '\0')
+ {
+ pad--;
+ }
+ if (zero_fill)
+ {
+ c = '0';
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ sign = '\0';
+ }
+ } else
+ {
+ c = ' ';
+ }
+ if (!pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ }
+ while (length-- > 0)
+ {
+ (*putc)(c = *cp++);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ if (pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ } else
+ {
+ (*putc)(c);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ }
+}
+
+static _cvt(unsigned long val, char *buf, long radix, char *digits)
+{
+ char temp[80];
+ char *cp = temp;
+ int length = 0;
+ if (val == 0)
+ { /* Special case */
+ *cp++ = '0';
+ } else
+ while (val)
+ {
+ *cp++ = digits[val % radix];
+ val /= radix;
+ }
+ while (cp != temp)
+ {
+ *buf++ = *--cp;
+ length++;
+ }
+ *buf = '\0';
+ return (length);
+}
+
+/*
+ * Console I/O interface
+ */
+
+typedef const (*proc)();
+typedef int dev_t;
+
+#define FALSE 0
+#define TRUE 1
+
+#define CRT_PORT 0x3D4 /* Pick one */
+
+static int init = FALSE;
+static int is_crt = 0;
+static int port = 0;
+static int line_num = 0;
+#define MAX_LINES 24
+
+char
+cngetc()
+{
+ int s = _disable_interrupts();
+ char c = '\0';
+ if (port == CRT_PORT)
+ {
+ c = CRT_getc(port);
+ } else
+ if (port)
+ {
+ c = NS16550_getc(port);
+ }
+ _enable_interrupts(s);
+ return (c);
+}
+
+cntstc()
+{
+ return (0);
+}
+
+char _cn_trace[1024];
+char *_cnp = _cn_trace;
+
+/*
+ * Console kernel output character routine.
+ */
+void
+cnputc(char c)
+{
+ *_cnp++ = c;
+ if (_cnp == &_cn_trace[sizeof(_cn_trace)])
+ {
+ _cnp = _cn_trace;
+ }
+ if (!init)
+ {
+ if (is_crt = CRT_init())
+ {
+ port = CRT_PORT;
+ } else
+ {
+ port = NS16550_init(0);
+ }
+ init = TRUE;
+ }
+ if (port == CRT_PORT)
+ {
+ CRT_putc(port, c);
+ } else
+ if (port)
+ {
+ NS16550_putc(port, c);
+ }
+ if (c == '\n')
+ {
+ if (line_num >= 0) line_num++;
+ }
+ if (c == '\r')
+ {
+ if (line_num >= MAX_LINES)
+ {
+ line_num = 0;
+ _cnpause();
+ }
+ }
+}
+
+_cnpause()
+{
+ int c;
+ int s = _disable_interrupts();
+ _printk("-- More? ");
+ while ((c = cngetc()) == 0);
+ _printk("\r \r"); /* Erase prompt */
+ if (c == ' ')
+ {
+ line_num = 0;
+ } else
+ if (c == 'n')
+ {
+ line_num = -1; /* Turn off pause */
+ } else
+ if ((c == '\r') || (c == '\n'))
+ {
+ line_num = MAX_LINES-1;
+ } else
+ if (c == 0x03) /* ^C */
+ {
+ abort();
+ } else
+ {
+ line_num = MAX_LINES - (MAX_LINES/3);
+ }
+ _enable_interrupts(s);
+}
+
+cnpause()
+{
+ int c;
+ int s = _disable_interrupts();
+ printk("-- More? ");
+ while ((c = cngetc()) == 0);
+ printk("\r \r"); /* Erase prompt */
+ _enable_interrupts(s);
+}
+
+/*
+ * COM1 NS16550 support
+ */
+
+struct NS16550
+ {
+ unsigned char rbr; /* 0 */
+ unsigned char ier; /* 1 */
+ unsigned char fcr; /* 2 */
+ unsigned char lcr; /* 3 */
+ unsigned char mcr; /* 4 */
+ unsigned char lsr; /* 5 */
+ unsigned char msr; /* 6 */
+ unsigned char scr; /* 7 */
+ };
+
+#define thr rbr
+#define iir fcr
+#define dll rbr
+#define dlm ier
+
+#define LSR_DR 0x01 /* Data ready */
+#define LSR_OE 0x02 /* Overrun */
+#define LSR_PE 0x04 /* Parity error */
+#define LSR_FE 0x08 /* Framing error */
+#define LSR_BI 0x10 /* Break */
+#define LSR_THRE 0x20 /* Xmit holding register empty */
+#define LSR_TEMT 0x40 /* Xmitter empty */
+#define LSR_ERR 0x80 /* Error */
+
+#define COM1 0x800003F8
+#define COM2 0x800002F8
+
+typedef struct NS16550 *NS16550_t;
+
+const NS16550_t COM_PORTS[] = { COM1, COM2};
+
+volatile struct NS16550 *
+NS16550_init(int chan)
+{
+ volatile struct NS16550 *com_port;
+ volatile unsigned char xx;
+ com_port = (struct NS16550 *) COM_PORTS[chan];
+ /* See if port is present */
+ com_port->lcr = 0x00;
+ com_port->ier = 0xFF;
+#if 0
+ if (com_port->ier != 0x0F) return ((struct NS16550 *)0);
+#endif
+ com_port->ier = 0x00;
+ com_port->lcr = 0x80; /* Access baud rate */
+ com_port->dll = 12; /* 9600 baud */
+ com_port->dlm = 12 >> 8;
+ com_port->lcr = 0x03; /* 8 data, 1 stop, no parity */
+ com_port->mcr = 0x03; /* RTS/DTR */
+ com_port->fcr = 0x07; /* Clear & enable FIFOs */
+ return (com_port);
+}
+
+
+NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
+{
+ volatile int i;
+ while ((com_port->lsr & LSR_THRE) == 0) ;
+ com_port->thr = c;
+}
+
+unsigned char NS16550_getc(volatile struct NS16550 *com_port)
+{
+ while ((com_port->lsr & LSR_DR) == 0) ;
+ return (com_port->rbr);
+}
+
+NS16550_test(volatile struct NS16550 *com_port)
+{
+ return ((com_port->lsr & LSR_DR) != 0);
+}
+
+typedef unsigned short u_short;
+typedef unsigned char u_char;
+
+#define COL 80
+#define ROW 25
+#define CHR 2
+#define MONO_BASE 0x3B4
+#define MONO_BUF 0xB0000
+#define CGA_BASE 0x3D4
+#define CGA_BUF 0xB8000
+#define ISA_mem ((unsigned char *)0xC0000000)
+#define ISA_io ((unsigned char *)0x80000000)
+
+unsigned char background = 0;
+unsigned char foreground = 6;
+
+unsigned int addr_6845;
+unsigned short *Crtat;
+int lastpos;
+int scroll;
+
+static void
+outb(int port, unsigned char c)
+{
+ ISA_io[port] = c;
+}
+
+static unsigned char
+inb(int port)
+{
+ return (ISA_io[port]);
+}
+
+/*
+ * The current state of virtual displays
+ */
+struct screen {
+ u_short *cp; /* the current character address */
+ enum state {
+ NORMAL, /* no pending escape */
+ ESC, /* saw ESC */
+ EBRAC, /* saw ESC[ */
+ EBRACEQ /* saw ESC[= */
+ } state; /* command parser state */
+ int cx; /* the first escape seq argument */
+ int cy; /* the second escap seq argument */
+ int *accp; /* pointer to the current processed argument */
+ int row; /* current column */
+ int so; /* standout mode */
+ u_short color; /* normal character color */
+ u_short color_so; /* standout color */
+ u_short save_color; /* saved normal color */
+ u_short save_color_so; /* saved standout color */
+} screen;
+
+/*
+ * Color and attributes for normal, standout and kernel output
+ * are stored in the least-significant byte of a u_short
+ * so they don't have to be shifted for use.
+ * This is all byte-order dependent.
+ */
+#define CATTR(x) (x) /* store color/attributes un-shifted */
+#define ATTR_ADDR(which) (((u_char *)&(which))+1) /* address of attributes */
+
+unsigned short pccolor; /* color/attributes for tty output */
+unsigned short pccolor_so; /* color/attributes, standout mode */
+
+/*
+ * cursor() sets an offset (0-1999) into the 80x25 text area
+ */
+static void
+cursor()
+{
+ int pos = screen.cp - Crtat;
+
+ if (lastpos != pos) {
+ outb(addr_6845, 14);
+ outb(addr_6845+1, pos >> 8);
+ outb(addr_6845, 15);
+ outb(addr_6845+1, pos);
+ lastpos = pos;
+ }
+}
+
+static void
+initscreen()
+{
+ struct screen *d = &screen;
+
+ pccolor = CATTR((background<<4)|foreground);
+ pccolor_so = CATTR((foreground<<4)|background);
+ d->color = pccolor;
+ d->save_color = pccolor;
+ d->color_so = pccolor_so;
+ d->save_color_so = pccolor_so;
+}
+
+
+#define wrtchar(c, d) { \
+ *(d->cp) = c; \
+ d->cp++; \
+ d->row++; \
+}
+
+fillw(unsigned short val, unsigned short *buf, int num)
+{
+ /* Need to byte swap value */
+ unsigned short tmp;
+ tmp = val;
+ while (num-- > 0)
+ {
+ *buf++ = tmp;
+ }
+}
+
+/*
+ * CRT_putc (nee sput) has support for emulation of the 'ibmpc' termcap entry.
+ * This is a bare-bones implementation of a bare-bones entry
+ * One modification: Change li#24 to li#25 to reflect 25 lines
+ * "ca" is the color/attributes value (left-shifted by 8)
+ * or 0 if the current regular color for that screen is to be used.
+ */
+void
+CRT_putc(int port, u_char c)
+{
+ struct screen *d = &screen;
+ u_short *base;
+ int i, j;
+ u_short *pp;
+
+ base = Crtat;
+
+ switch (d->state) {
+ case NORMAL:
+ switch (c) {
+ case 0x0: /* Ignore pad characters */
+ return;
+
+ case 0x1B:
+ d->state = ESC;
+ break;
+
+ case '\t':
+ do {
+ wrtchar(d->color | ' ', d);
+ } while (d->row % 8);
+ break;
+
+ case '\b': /* non-destructive backspace */
+ if (d->cp > base) {
+ d->cp--;
+ d->row--;
+ if (d->row < 0)
+ d->row += COL; /* prev column */
+ }
+ break;
+
+ case '\r':
+ d->cp -= d->row;
+ d->row = 0;
+ break;
+
+ case '\n':
+ d->cp += COL;
+ break;
+
+ case '\007':
+ break;
+
+ default:
+ if (d->so) {
+ wrtchar(d->color_so|(c<<8), d);
+ } else {
+ wrtchar(d->color | (c<<8), d);
+ }
+ if (d->row >= COL)
+ d->row = 0;
+ break;
+ }
+ break;
+
+ case EBRAC:
+ /*
+ * In this state, the action at the end of the switch
+ * on the character type is to go to NORMAL state,
+ * and intermediate states do a return rather than break.
+ */
+ switch (c) {
+ case 'm':
+ d->so = d->cx;
+ break;
+
+ case 'A': /* back one row */
+ if (d->cp >= base + COL)
+ d->cp -= COL;
+ break;
+
+ case 'B': /* down one row */
+ d->cp += COL;
+ break;
+
+ case 'C': /* right cursor */
+ d->cp++;
+ d->row++;
+ break;
+
+ case 'D': /* left cursor */
+ if (d->cp > base) {
+ d->cp--;
+ d->row--;
+ if (d->row < 0)
+ d->row += COL; /* prev column ??? */
+ }
+ break;
+
+ case 'J': /* Clear to end of display */
+ fillw(d->color|(' '<<8), d->cp, base + COL * ROW - d->cp);
+ break;
+
+ case 'K': /* Clear to EOL */
+ fillw(d->color|(' '<<8), d->cp, COL - (d->cp - base) % COL);
+ break;
+
+ case 'H': /* Cursor move */
+ if (d->cx > ROW)
+ d->cx = ROW;
+ if (d->cy > COL)
+ d->cy = COL;
+ if (d->cx == 0 || d->cy == 0) {
+ d->cp = base;
+ d->row = 0;
+ } else {
+ d->cp = base + (d->cx - 1) * COL + d->cy - 1;
+ d->row = d->cy - 1;
+ }
+ break;
+
+ case '_': /* set cursor */
+ if (d->cx)
+ d->cx = 1; /* block */
+ else
+ d->cx = 12; /* underline */
+ outb(addr_6845, 10);
+ outb(addr_6845+1, d->cx);
+ outb(addr_6845, 11);
+ outb(addr_6845+1, 13);
+ break;
+
+ case ';': /* Switch params in cursor def */
+ d->accp = &d->cy;
+ return;
+
+ case '=': /* ESC[= color change */
+ d->state = EBRACEQ;
+ return;
+
+ case 'L': /* Insert line */
+ i = (d->cp - base) / COL;
+ /* avoid deficiency of bcopy implementation */
+ pp = base + COL * (ROW-2);
+ for (j = ROW - 1 - i; j--; pp -= COL)
+ bcopy(pp, pp + COL, COL * CHR);
+ fillw(d->color|(' '<<8), base + i * COL, COL);
+ break;
+
+ case 'M': /* Delete line */
+ i = (d->cp - base) / COL;
+ pp = base + i * COL;
+ bcopy(pp + COL, pp, (ROW-1 - i)*COL*CHR);
+ fillw(d->color|(' '<<8), base + COL * (ROW - 1), COL);
+ break;
+
+ default: /* Only numbers valid here */
+ if ((c >= '0') && (c <= '9')) {
+ *(d->accp) *= 10;
+ *(d->accp) += c - '0';
+ return;
+ } else
+ break;
+ }
+ d->state = NORMAL;
+ break;
+
+ case EBRACEQ: {
+ /*
+ * In this state, the action at the end of the switch
+ * on the character type is to go to NORMAL state,
+ * and intermediate states do a return rather than break.
+ */
+ u_char *colp;
+
+ /*
+ * Set foreground/background color
+ * for normal mode, standout mode
+ * or kernel output.
+ * Based on code from kentp@svmp03.
+ */
+ switch (c) {
+ case 'F':
+ colp = ATTR_ADDR(d->color);
+ do_fg:
+ *colp = (*colp & 0xf0) | (d->cx);
+ break;
+
+ case 'G':
+ colp = ATTR_ADDR(d->color);
+ do_bg:
+ *colp = (*colp & 0xf) | (d->cx << 4);
+ break;
+
+ case 'H':
+ colp = ATTR_ADDR(d->color_so);
+ goto do_fg;
+
+ case 'I':
+ colp = ATTR_ADDR(d->color_so);
+ goto do_bg;
+
+ case 'S':
+ d->save_color = d->color;
+ d->save_color_so = d->color_so;
+ break;
+
+ case 'R':
+ d->color = d->save_color;
+ d->color_so = d->save_color_so;
+ break;
+
+ default: /* Only numbers valid here */
+ if ((c >= '0') && (c <= '9')) {
+ d->cx *= 10;
+ d->cx += c - '0';
+ return;
+ } else
+ break;
+ }
+ d->state = NORMAL;
+ }
+ break;
+
+ case ESC:
+ switch (c) {
+ case 'c': /* Clear screen & home */
+ fillw(d->color|(' '<<8), base, COL * ROW);
+ d->cp = base;
+ d->row = 0;
+ d->state = NORMAL;
+ break;
+ case '[': /* Start ESC [ sequence */
+ d->state = EBRAC;
+ d->cx = 0;
+ d->cy = 0;
+ d->accp = &d->cx;
+ break;
+ default: /* Invalid, clear state */
+ d->state = NORMAL;
+ break;
+ }
+ break;
+ }
+ if (d->cp >= base + (COL * ROW)) { /* scroll check */
+ bcopy(base + COL, base, COL * (ROW - 1) * CHR);
+ fillw(d->color|(' '<<8), base + COL * (ROW - 1), COL);
+ d->cp -= COL;
+ }
+ cursor();
+}
+
+video_on()
+{ /* Enable video */
+ outb(0x3C4, 0x01);
+ outb(0x3C5, inb(0x3C5)&~20);
+}
+
+CRT_init()
+{
+ unsigned long *PCI_base = (unsigned long *)0x80808010; /* Magic */
+ struct screen *d = &screen;
+ if (*PCI_base)
+ { /* No CRT configured */
+ return (0);
+ }
+ video_on();
+ d->cp = Crtat = (u_short *)&ISA_mem[0x0B8000];
+ addr_6845 = CGA_BASE;
+ initscreen();
+ fillw(pccolor|(' '<<8), d->cp, COL * ROW);
+ return (1);
+}
+
+/* Keyboard handler */
+
+#define L 0x0001 /* locking function */
+#define SHF 0x0002 /* keyboard shift */
+#define ALT 0x0004 /* alternate shift -- alternate chars */
+#define NUM 0x0008 /* numeric shift cursors vs. numeric */
+#define CTL 0x0010 /* control shift -- allows ctl function */
+#define CPS 0x0020 /* caps shift -- swaps case of letter */
+#define ASCII 0x0040 /* ascii code for this key */
+#define STP 0x0080 /* stop output */
+#define FUNC 0x0100 /* function key */
+#define SCROLL 0x0200 /* scroll lock key */
+
+/* #include "pcconstab.US" */
+/* BSDI $Id: pcconstab.US,v 1.1.1.1 1994/03/31 13:29:09 gary Exp $ */
+/*-
+ * 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
+ */
+
+/*
+ * US Keyboard mapping tables
+ */
+
+const unsigned short action[] = {
+ 0, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 0- 7 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 8-15 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 16-23 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, CTL, ASCII, ASCII, /* scan 24-31 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 32-39 */
+ ASCII, ASCII, SHF, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 40-47 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, SHF, ASCII, /* scan 48-55 */
+ ALT, ASCII, CPS, FUNC, FUNC, FUNC, FUNC, FUNC, /* scan 56-63 */
+ FUNC, FUNC, FUNC, FUNC, FUNC, NUM,SCROLL, ASCII, /* scan 64-71 */
+ ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, /* scan 72-79 */
+ ASCII, ASCII, ASCII, ASCII, 0, 0, 0, 0, /* scan 80-87 */
+ 0,0,0,0,0,0,0,0, /* scan 88-95 */
+ 0,0,0,0,0,0,0,0, /* scan 96-103 */
+ 0,0,0,0,0,0,0,0, /* scan 104-111 */
+ 0,0,0,0,0,0,0,0, /* scan 112-119 */
+ 0,0,0,0,0,0,0,0, /* scan 120-127 */
+};
+
+const unsigned char unshift[] = { /* no shift */
+ 0, 033, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
+ '7', '8', '9', '0', '-', '=', 010, '\t', /* scan 8-15 */
+ 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* scan 16-23 */
+ 'o', 'p', '[', ']', '\r', CTL, 'a', 's', /* scan 24-31 */
+ 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* scan 32-39 */
+ '\'', '`', SHF, '\\', 'z', 'x', 'c', 'v', /* scan 40-47 */
+ 'b', 'n', 'm', ',', '.', '/', SHF, '*', /* scan 48-55 */
+ ALT, ' ', CPS, 1, 2, 3, 4, 5, /* scan 56-63 */
+ 6, 7, 8, 9, 10, NUM, STP, '7', /* scan 64-71 */
+ '8', '9', '-', '4', '5', '6', '+', '1', /* scan 72-79 */
+ '2', '3', '0', 0177, 0, 0, 0, 0, /* scan 80-87 */
+ 0,0,0,0,0,0,0,0, /* scan 88-95 */
+ 0,0,0,0,0,0,0,0, /* scan 96-103 */
+ 0,0,0,0,0,0,0,0, /* scan 104-111 */
+ 0,0,0,0,0,0,0,0, /* scan 112-119 */
+ 0,0,0,0,0,0,0,0, /* scan 120-127 */
+};
+
+const unsigned char shift[] = { /* shift shift */
+ 0, 033, '!', '@', '#', '$', '%', '^', /* scan 0- 7 */
+ '&', '*', '(', ')', '_', '+', 010, '\t', /* scan 8-15 */
+ 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* scan 16-23 */
+ 'O', 'P', '{', '}', '\r', CTL, 'A', 'S', /* scan 24-31 */
+ 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* scan 32-39 */
+ '"', '~', SHF, '|', 'Z', 'X', 'C', 'V', /* scan 40-47 */
+ 'B', 'N', 'M', '<', '>', '?', SHF, '*', /* scan 48-55 */
+ ALT, ' ', CPS, 0, 0, ' ', 0, 0, /* scan 56-63 */
+ 0, 0, 0, 0, 0, NUM, STP, '7', /* scan 64-71 */
+ '8', '9', '-', '4', '5', '6', '+', '1', /* scan 72-79 */
+ '2', '3', '0', 0177, 0, 0, 0, 0, /* scan 80-87 */
+ 0,0,0,0,0,0,0,0, /* scan 88-95 */
+ 0,0,0,0,0,0,0,0, /* scan 96-103 */
+ 0,0,0,0,0,0,0,0, /* scan 104-111 */
+ 0,0,0,0,0,0,0,0, /* scan 112-119 */
+ 0,0,0,0,0,0,0,0, /* scan 120-127 */
+};
+
+const unsigned char ctl[] = { /* CTL shift */
+ 0, 033, '!', 000, '#', '$', '%', 036, /* scan 0- 7 */
+ '&', '*', '(', ')', 037, '+', 034,'\177', /* scan 8-15 */
+ 021, 027, 005, 022, 024, 031, 025, 011, /* scan 16-23 */
+ 017, 020, 033, 035, '\r', CTL, 001, 023, /* scan 24-31 */
+ 004, 006, 007, 010, 012, 013, 014, ';', /* scan 32-39 */
+ '\'', '`', SHF, 034, 032, 030, 003, 026, /* scan 40-47 */
+ 002, 016, 015, '<', '>', '?', SHF, '*', /* scan 48-55 */
+ ALT, ' ', CPS, 0, 0, ' ', 0, 0, /* scan 56-63 */
+ CPS, 0, 0, 0, 0, 0, 0, 0, /* scan 64-71 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* scan 72-79 */
+ 0, 0, 0, 0177, 0, 0, 0, 0, /* scan 80-87 */
+ 0, 0, 033, '7', '4', '1', 0, NUM, /* scan 88-95 */
+ '8', '5', '2', 0, STP, '9', '6', '3', /* scan 96-103*/
+ '.', 0, '*', '-', '+', 0, 0, 0, /*scan 104-111*/
+ 0,0,0,0,0,0,0,0, /* scan 112-119 */
+ 0,0,0,0,0,0,0,0, /* scan 120-127 */
+};
+
+
+unsigned char shfts, ctls, alts, caps, num, stp;
+
+#define KBDATAP 0x60 /* kbd data port */
+#define KBSTATUSPORT 0x61 /* kbd status */
+#define KBSTATP 0x64 /* kbd status port */
+#define KBINRDY 0x01
+#define KBOUTRDY 0x02
+
+#define _x__ 0x00 /* Unknown / unmapped */
+
+const unsigned char keycode[] = {
+ _x__, 0x43, 0x41, 0x3F, 0x3D, 0x3B, 0x3C, _x__, /* 0x00-0x07 */
+ _x__, 0x44, 0x42, 0x40, 0x3E, 0x0F, 0x29, _x__, /* 0x08-0x0F */
+ _x__, 0x38, 0x2A, _x__, 0x1D, 0x10, 0x02, _x__, /* 0x10-0x17 */
+ _x__, _x__, 0x2C, 0x1F, 0x1E, 0x11, 0x03, _x__, /* 0x18-0x1F */
+ _x__, 0x2E, 0x2D, 0x20, 0x12, 0x05, 0x04, _x__, /* 0x20-0x27 */
+ _x__, 0x39, 0x2F, 0x21, 0x14, 0x13, 0x06, _x__, /* 0x28-0x2F */
+ _x__, 0x31, 0x30, 0x23, 0x22, 0x15, 0x07, _x__, /* 0x30-0x37 */
+ _x__, _x__, 0x32, 0x24, 0x16, 0x08, 0x09, _x__, /* 0x38-0x3F */
+ _x__, 0x33, 0x25, 0x17, 0x18, 0x0B, 0x0A, _x__, /* 0x40-0x47 */
+ _x__, 0x34, 0x35, 0x26, 0x27, 0x19, 0x0C, _x__, /* 0x48-0x4F */
+ _x__, _x__, 0x28, _x__, 0x1A, 0x0D, _x__, _x__, /* 0x50-0x57 */
+ 0x3A, 0x36, 0x1C, 0x1B, _x__, 0x2B, _x__, _x__, /* 0x58-0x5F */
+ _x__, _x__, _x__, _x__, _x__, _x__, 0x0E, _x__, /* 0x60-0x67 */
+ _x__, 0x4F, _x__, 0x4B, 0x47, _x__, _x__, _x__, /* 0x68-0x6F */
+ 0x52, 0x53, 0x50, 0x4C, 0x4D, 0x48, 0x01, 0x45, /* 0x70-0x77 */
+ _x__, 0x4E, 0x51, 0x4A, _x__, 0x49, 0x46, 0x54, /* 0x78-0x7F */
+};
+
+int
+kbd(noblock)
+ int noblock;
+{
+ unsigned char dt, brk, act;
+ int first = 1;
+loop:
+ if (noblock) {
+ if ((inb(KBSTATP) & KBINRDY) == 0)
+ return (-1);
+ } else while((inb(KBSTATP) & KBINRDY) == 0)
+ ;
+ dt = inb(KBDATAP);
+
+ brk = dt & 0x80; /* brk == 1 on key release */
+ dt = dt & 0x7f; /* keycode */
+
+ act = action[dt];
+ if (act&SHF)
+ shfts = brk ? 0 : 1;
+ if (act&ALT)
+ alts = brk ? 0 : 1;
+ if (act&NUM)
+ if (act&L) {
+ /* NUM lock */
+ if(!brk)
+ num = !num;
+ } else
+ num = brk ? 0 : 1;
+ if (act&CTL)
+ ctls = brk ? 0 : 1;
+ if (act&CPS)
+ if (act&L) {
+ /* CAPS lock */
+ if(!brk)
+ caps = !caps;
+ } else
+ caps = brk ? 0 : 1;
+ if (act&STP)
+ if (act&L) {
+ if(!brk)
+ stp = !stp;
+ } else
+ stp = brk ? 0 : 1;
+
+ if ((act&ASCII) && !brk) {
+ unsigned char chr;
+
+ if (shfts)
+ chr = shift[dt];
+ else if (ctls)
+ chr = ctl[dt];
+ else
+ chr = unshift[dt];
+
+ if (alts)
+ chr |= 0x80;
+
+ if (caps && (chr >= 'a' && chr <= 'z'))
+ chr -= 'a' - 'A' ;
+#define CTRL(s) (s & 0x1F)
+ if ((chr == '\r') || (chr == '\n') || (chr == CTRL('A')) || (chr == CTRL('S')))
+ {
+ /* Wait for key up */
+ while (1)
+ {
+ while((inb(KBSTATP) & KBINRDY) == 0) ;
+ dt = inb(KBDATAP);
+ if (dt & 0x80) /* key up */ break;
+ }
+ }
+ return (chr);
+ }
+ if (first && brk) return (0); /* Ignore initial 'key up' codes */
+ goto loop;
+}
+
+scankbd() {
+ return (kbd(1) != -1);
+}
+
+kbdreset()
+{
+ unsigned char c;
+
+ /* Enable interrupts and keyboard controller */
+ while (inb(KBSTATP) & KBOUTRDY)
+ ;
+ outb(KBSTATP,0x60);
+ while (inb(KBSTATP) & KBOUTRDY)
+ ;
+ outb(KBDATAP,0x4D);
+
+ /* Start keyboard stuff RESET */
+ while (inb(KBSTATP) & KBOUTRDY)
+ ; /* wait input ready */
+ outb(KBDATAP,0xFF); /* RESET */
+
+ while ((c = inb(KBDATAP)) != 0xFA)
+ ;
+}
+
+CRT_getc()
+{
+ int c;
+ while ((c = kbd(0)) == 0) ;
+ return(c);
+}
+
+CRT_test()
+{
+ return ((inb(KBSTATP) & KBINRDY) != 0);
+}
+
+
+_dump_buf_with_offset(unsigned char *p, int s, unsigned char *base)
+{
+ int i, c;
+ if ((unsigned int)s > (unsigned int)p)
+ {
+ s = (unsigned int)s - (unsigned int)p;
+ }
+ while (s > 0)
+ {
+ if (base)
+ {
+ _printk("%06X: ", (int)p - (int)base);
+ } else
+ {
+ _printk("%06X: ", p);
+ }
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ _printk("%02X", p[i] & 0xFF);
+ } else
+ {
+ _printk(" ");
+ }
+ if ((i % 2) == 1) _printk(" ");
+ if ((i % 8) == 7) _printk(" ");
+ }
+ _printk(" |");
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ c = p[i] & 0xFF;
+ if ((c < 0x20) || (c >= 0x7F)) c = '.';
+ } else
+ {
+ c = ' ';
+ }
+ _printk("%c", c);
+ }
+ _printk("|\n");
+ s -= 16;
+ p += 16;
+ }
+}
+
+_dump_buf(unsigned char *p, int s)
+{
+ _dump_buf_with_offset(p, s, 0);
+}
+
+
+dump_buf_with_offset(unsigned char *p, int s, unsigned char *base)
+{
+ int i, c;
+ if ((unsigned int)s > (unsigned int)p)
+ {
+ s = (unsigned int)s - (unsigned int)p;
+ }
+ while (s > 0)
+ {
+ if (base)
+ {
+ printk("%06X: ", (int)p - (int)base);
+ } else
+ {
+ printk("%06X: ", p);
+ }
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ printk("%02X", p[i] & 0xFF);
+ } else
+ {
+ printk(" ");
+ }
+ if ((i % 2) == 1) printk(" ");
+ if ((i % 8) == 7) printk(" ");
+ }
+ printk(" |");
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ c = p[i] & 0xFF;
+ if ((c < 0x20) || (c >= 0x7F)) c = '.';
+ } else
+ {
+ c = ' ';
+ }
+ printk("%c", c);
+ }
+ printk("|\n");
+ s -= 16;
+ p += 16;
+ }
+}
+
+dump_buf(unsigned char *p, int s)
+{
+ dump_buf_with_offset(p, s, 0);
+}
+
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this