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-rw-r--r--src/console/console.c75
-rw-r--r--src/console/logbuf_console.c19
-rw-r--r--src/console/printk.c56
-rw-r--r--src/console/uart8250_console.c49
-rw-r--r--src/console/vga_console.c100
-rw-r--r--src/console/vsprintf.c352
6 files changed, 651 insertions, 0 deletions
diff --git a/src/console/console.c b/src/console/console.c
new file mode 100644
index 0000000000..458fbb8fff
--- /dev/null
+++ b/src/console/console.c
@@ -0,0 +1,75 @@
+/*
+ * Bootstrap code for the INTEL
+ * $Id$
+ *
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <string.h>
+#include <pc80/mc146818rtc.h>
+
+
+static int initialized;
+
+/* initialize the console */
+void console_init(void)
+{
+ struct console_driver *driver;
+ if(get_option(&console_loglevel, "debug_level"))
+ console_loglevel=DEFAULT_CONSOLE_LOGLEVEL;
+
+ for(driver = console_drivers; driver < econsole_drivers; driver++) {
+ if (!driver->init)
+ continue;
+ driver->init();
+ }
+ initialized = 1;
+}
+
+static void __console_tx_byte(unsigned char byte)
+{
+ struct console_driver *driver;
+ for(driver = console_drivers; driver < econsole_drivers; driver++) {
+ driver->tx_byte(byte);
+ }
+}
+
+void console_tx_flush(void)
+{
+ struct console_driver *driver;
+ for(driver = console_drivers; driver < econsole_drivers; driver++) {
+ if (!driver->tx_flush)
+ continue;
+ driver->tx_flush();
+ }
+}
+
+void console_tx_byte(unsigned char byte)
+{
+ if (!initialized)
+ return;
+ if (byte == '\n')
+ __console_tx_byte('\r');
+ __console_tx_byte(byte);
+}
+
+/*
+ * Write POST information
+ */
+void post_code(uint8_t value)
+{
+#ifdef CONFIG_SERIAL_POST
+ printk_info("POST: 0x%02x\n", value);
+#elsif !define(NO_POST)
+ outb(value, 0x80);
+#endif
+}
+
+/* Report a fatal error */
+void die(char *msg)
+{
+ printk_emerg("%s", msg);
+ post_code(0xff);
+ while (1); /* Halt */
+}
diff --git a/src/console/logbuf_console.c b/src/console/logbuf_console.c
new file mode 100644
index 0000000000..e605ae5c23
--- /dev/null
+++ b/src/console/logbuf_console.c
@@ -0,0 +1,19 @@
+#include <console/console.h>
+
+#define LOGBUF_SIZE 1024
+
+// KEEP THIS GLOBAL.
+// I need the address so I can watch it with the ARIUM hardware. RGM.
+char logbuf[LOGBUF_SIZE];
+int logbuf_offset = 0;
+
+static void logbuf_tx_byte(unsigned char byte)
+{
+ logbuf[logbuf_offset] = byte;
+ logbuf_offset = (logbuf_offset +1) % LOGBUF_SIZE;
+}
+
+static struct console_driver __console = {
+ .init = 0,
+ .tx_byte = logbuf_tx_byte,
+};}
diff --git a/src/console/printk.c b/src/console/printk.c
new file mode 100644
index 0000000000..67b0d4e19b
--- /dev/null
+++ b/src/console/printk.c
@@ -0,0 +1,56 @@
+/*
+ * blantantly copied from linux/kernel/printk.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif
+
+//typedef void * va_list;
+
+#include <stdarg.h>
+#include <smp/spinlock.h>
+#include <console/console.h>
+
+/* printk's without a loglevel use this.. */
+#define DEFAULT_MESSAGE_LOGLEVEL 4 /* BIOS_WARNING */
+
+/* We show everything that is MORE important than this.. */
+#define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */
+
+/* Keep together for sysctl support */
+
+int console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+int default_message_loglevel = DEFAULT_MESSAGE_LOGLEVEL;
+int minimum_console_loglevel = MINIMUM_CONSOLE_LOGLEVEL;
+int default_console_loglevel = DEFAULT_CONSOLE_LOGLEVEL;
+
+void display(char*);
+extern int vtxprintf(void (*)(unsigned char), const char *, va_list);
+
+spinlock_t console_lock = SPIN_LOCK_UNLOCKED;
+
+int do_printk(int msg_level, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ if (msg_level >= console_loglevel) {
+ return 0;
+ }
+
+ spin_lock(&console_lock);
+
+ va_start(args, fmt);
+ i = vtxprintf(console_tx_byte, fmt, args);
+ va_end(args);
+
+ console_tx_flush();
+
+ spin_unlock(&console_lock);
+
+ return i;
+}
diff --git a/src/console/uart8250_console.c b/src/console/uart8250_console.c
new file mode 100644
index 0000000000..6eeeb6aa55
--- /dev/null
+++ b/src/console/uart8250_console.c
@@ -0,0 +1,49 @@
+#include <console/console.h>
+#include <uart8250.h>
+#include <pc80/mc146818rtc.h>
+
+/* Base Address */
+#ifndef TTYS0_BASE
+#define TTYS0_BASE 0x3f8
+#endif
+
+#ifndef TTYS0_BAUD
+#define TTYS0_BAUD 115200
+#endif
+
+#if ((115200%TTYS0_BAUD) != 0)
+#error Bad ttys0 baud rate
+#endif
+
+#define TTYS0_DIV (115200/TTYS0_BAUD)
+
+/* Line Control Settings */
+#ifndef TTYS0_LCS
+/* Set 8bit, 1 stop bit, no parity */
+#define TTYS0_LCS 0x3
+#endif
+
+#define UART_LCS TTYS0_LCS
+
+void ttyS0_init(void)
+{
+ static unsigned char div[8]={1,2,3,6,12,24,48,96};
+ int b_index=0;
+ unsigned int divisor=TTYS0_DIV;
+
+ if(get_option(&b_index,"baud_rate")==0) {
+ divisor=div[b_index];
+ }
+ uart8250_init(TTYS0_BASE, divisor, TTYS0_LCS);
+}
+
+void ttyS0_tx_byte(unsigned char data)
+{
+ uart8250_tx_byte(TTYS0_BASE, data);
+}
+
+static struct console_driver uart8250_console __console = {
+ .init = ttyS0_init,
+ .tx_byte = ttyS0_tx_byte,
+};
+
diff --git a/src/console/vga_console.c b/src/console/vga_console.c
new file mode 100644
index 0000000000..ffd6699529
--- /dev/null
+++ b/src/console/vga_console.c
@@ -0,0 +1,100 @@
+/*
+ *
+ * modified from original freebios code
+ * by Steve M. Gehlbach <steve@kesa.com>
+ *
+ */
+
+#include <arch/io.h>
+#include <string.h>
+#include <pc80/vga.h>
+#include <console/console.h>
+
+void beep(int ms);
+
+static char *vidmem; /* The video buffer, should be replaced by symbol in ldscript.ld */
+int vga_line, vga_col;
+
+#define VIDBUFFER 0xB8000;
+
+static void memsetw(void *s, int c, unsigned int n)
+{
+ int i;
+ u16 *ss = (u16 *) s;
+
+ for (i = 0; i < n; i++) {
+ ss[i] = ( u16 ) c;
+ }
+}
+
+static void vga_init(void)
+{
+
+ // these are globals
+ vga_line = 0;
+ vga_col = 0;
+ vidmem = (unsigned char *) VIDBUFFER;
+
+ // mainboard or chip specific init routines
+ // also loads font
+ vga_hardware_fixup();
+
+ // set attributes, char for entire screen
+ // font should be previously loaded in
+ // device specific code (vga_hardware_fixup)
+ memsetw(vidmem, VGA_ATTR_CLR_WHT, 2*1024); //
+}
+
+static void vga_scroll(void)
+{
+ int i;
+
+ memcpy(vidmem, vidmem + COLS * 2, (LINES - 1) * COLS * 2);
+ for (i = (LINES - 1) * COLS * 2; i < LINES * COLS * 2; i += 2)
+ vidmem[i] = ' ';
+}
+
+static void vga_tx_byte(unsigned char byte)
+{
+ if (byte == '\n') {
+ vga_line++;
+ vga_col = 0;
+
+ } else if (byte == '\r') {
+ vga_col = 0;
+
+ } else if (byte == '\b') {
+ vga_col--;
+
+ } else if (byte == '\t') {
+ vga_col += 4;
+
+ } else if (byte == '\a') {
+ //beep
+ beep(500);
+
+ } else {
+ vidmem[((vga_col + (vga_line *COLS)) * 2)] = byte;
+ vidmem[((vga_col + (vga_line *COLS)) * 2) +1] = VGA_ATTR_CLR_WHT;
+ vga_col++;
+ }
+ if (vga_col < 0) {
+ vga_col = 0;
+ }
+ if (vga_col >= COLS) {
+ vga_line++;
+ vga_col = 0;
+ }
+ if (vga_line >= LINES) {
+ vga_scroll();
+ vga_line--;
+ }
+ // move the cursor
+ write_crtc((vga_col + (vga_line *COLS)) >> 8, CRTC_CURSOR_HI);
+ write_crtc((vga_col + (vga_line *COLS)) & 0x0ff, CRTC_CURSOR_LO);
+}
+
+struct console_driver {
+ .init = vga_init,
+ .tx_byte = vga_tx_byte,
+};
diff --git a/src/console/vsprintf.c b/src/console/vsprintf.c
new file mode 100644
index 0000000000..b1310c62d1
--- /dev/null
+++ b/src/console/vsprintf.c
@@ -0,0 +1,352 @@
+/*
+ * linux/lib/vsprintf.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
+/*
+ * Wirzenius wrote this portably, Torvalds fucked it up :-)
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif
+
+#include <stdarg.h>
+#include <string.h>
+
+/* haha, don't need ctype.c */
+#define isdigit(c) ((c) >= '0' && (c) <= '9')
+#define is_digit isdigit
+#define isxdigit(c) (((c) >= '0' && (c) <= '9') || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
+#define islower(c) ((c) >= 'a' && (c) <= 'z')
+#define toupper(c) __toupper(c)
+
+static inline unsigned char __toupper(unsigned char c)
+{
+ if (islower(c))
+ c -= 'a'-'A';
+ return c;
+}
+
+
+unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
+{
+ unsigned long result = 0,value;
+
+ if (!base) {
+ base = 10;
+ if (*cp == '0') {
+ base = 8;
+ cp++;
+ if ((*cp == 'x') && isxdigit(cp[1])) {
+ cp++;
+ base = 16;
+ }
+ }
+ }
+ while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
+ ? toupper(*cp) : *cp)-'A'+10) < base) {
+ result = result*base + value;
+ cp++;
+ }
+ if (endp)
+ *endp = (char *)cp;
+ return result;
+}
+
+long simple_strtol(const char *cp,char **endp,unsigned int base)
+{
+ if(*cp=='-')
+ return -simple_strtoul(cp+1,endp,base);
+ return simple_strtoul(cp,endp,base);
+}
+
+
+static int skip_atoi(const char **s)
+{
+ int i=0;
+
+ while (is_digit(**s))
+ i = i*10 + *((*s)++) - '0';
+ return i;
+}
+
+#define ZEROPAD 1 /* pad with zero */
+#define SIGN 2 /* unsigned/signed long */
+#define PLUS 4 /* show plus */
+#define SPACE 8 /* space if plus */
+#define LEFT 16 /* left justified */
+#define SPECIAL 32 /* 0x */
+#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
+
+#define do_div(n,base) ({ \
+int __res; \
+__res = ((unsigned long) n) % (unsigned) base; \
+n = ((unsigned long) n) / (unsigned) base; \
+__res; })
+
+static int number(void (*tx_byte)(unsigned char byte), long num, int base, int size, int precision
+ ,int type)
+{
+ char c,sign,tmp[66];
+ const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+ int i;
+ int count = 0;
+
+ if (type & LARGE)
+ digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ if (type & LEFT)
+ type &= ~ZEROPAD;
+ if (base < 2 || base > 36)
+ return 0;
+ c = (type & ZEROPAD) ? '0' : ' ';
+ sign = 0;
+ if (type & SIGN) {
+ if (num < 0) {
+ sign = '-';
+ num = -num;
+ size--;
+ } else if (type & PLUS) {
+ sign = '+';
+ size--;
+ } else if (type & SPACE) {
+ sign = ' ';
+ size--;
+ }
+ }
+ if (type & SPECIAL) {
+ if (base == 16)
+ size -= 2;
+ else if (base == 8)
+ size--;
+ }
+ i = 0;
+ if (num == 0)
+ tmp[i++]='0';
+ else while (num != 0)
+ tmp[i++] = digits[do_div(num,base)];
+ if (i > precision)
+ precision = i;
+ size -= precision;
+ if (!(type&(ZEROPAD+LEFT)))
+ while(size-->0)
+ tx_byte(' '), count++;
+ if (sign)
+ tx_byte(sign), count++;
+ if (type & SPECIAL) {
+ if (base==8)
+ tx_byte('0'), count++;
+ else if (base==16) {
+ tx_byte('0'), count++;
+ tx_byte(digits[33]), count++;
+ }
+ }
+ if (!(type & LEFT))
+ while (size-- > 0)
+ tx_byte(c), count++;
+ while (i < precision--)
+ tx_byte('0'), count++;
+ while (i-- > 0)
+ tx_byte(tmp[i]), count++;
+ while (size-- > 0)
+ tx_byte(' '), count++;
+ return count;
+}
+
+
+int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args)
+{
+ int len;
+ unsigned long num;
+ int i, base;
+ const char *s;
+
+ int flags; /* flags to number() */
+
+ int field_width; /* width of output field */
+ int precision; /* min. # of digits for integers; max
+ number of chars for from string */
+ int qualifier; /* 'h', 'l', or 'L' for integer fields */
+
+ int count;
+
+ for (count=0; *fmt ; ++fmt) {
+ if (*fmt != '%') {
+ tx_byte(*fmt), count++;
+ continue;
+ }
+
+ /* process flags */
+ flags = 0;
+ repeat:
+ ++fmt; /* this also skips first '%' */
+ switch (*fmt) {
+ case '-': flags |= LEFT; goto repeat;
+ case '+': flags |= PLUS; goto repeat;
+ case ' ': flags |= SPACE; goto repeat;
+ case '#': flags |= SPECIAL; goto repeat;
+ case '0': flags |= ZEROPAD; goto repeat;
+ }
+
+ /* get field width */
+ field_width = -1;
+ if (is_digit(*fmt))
+ field_width = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ field_width = va_arg(args, int);
+ if (field_width < 0) {
+ field_width = -field_width;
+ flags |= LEFT;
+ }
+ }
+
+ /* get the precision */
+ precision = -1;
+ if (*fmt == '.') {
+ ++fmt;
+ if (is_digit(*fmt))
+ precision = skip_atoi(&fmt);
+ else if (*fmt == '*') {
+ ++fmt;
+ /* it's the next argument */
+ precision = va_arg(args, int);
+ }
+ if (precision < 0)
+ precision = 0;
+ }
+
+ /* get the conversion qualifier */
+ qualifier = -1;
+ if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+ qualifier = *fmt;
+ ++fmt;
+ }
+
+ /* default base */
+ base = 10;
+
+ switch (*fmt) {
+ case 'c':
+ if (!(flags & LEFT))
+ while (--field_width > 0)
+ tx_byte(' '), count++;
+ tx_byte((unsigned char) va_arg(args, int)), count++;
+ while (--field_width > 0)
+ tx_byte(' '), count++;
+ continue;
+
+ case 's':
+ s = va_arg(args, char *);
+ if (!s)
+ s = "<NULL>";
+
+ len = strnlen(s, precision);
+
+ if (!(flags & LEFT))
+ while (len < field_width--)
+ tx_byte(' '), count++;
+ for (i = 0; i < len; ++i)
+ tx_byte(*s++), count++;
+ while (len < field_width--)
+ tx_byte(' '), count++;
+ continue;
+
+ case 'p':
+ if (field_width == -1) {
+ field_width = 2*sizeof(void *);
+ flags |= ZEROPAD;
+ }
+ count += number(tx_byte,
+ (unsigned long) va_arg(args, void *), 16,
+ field_width, precision, flags);
+ continue;
+
+
+ case 'n':
+ if (qualifier == 'l') {
+ long * ip = va_arg(args, long *);
+ *ip = count;
+ } else {
+ int * ip = va_arg(args, int *);
+ *ip = count;
+ }
+ continue;
+
+ case '%':
+ tx_byte('%'), count++;
+ continue;
+
+ /* integer number formats - set up the flags and "break" */
+ case 'o':
+ base = 8;
+ break;
+
+ case 'X':
+ flags |= LARGE;
+ case 'x':
+ base = 16;
+ break;
+
+ case 'd':
+ case 'i':
+ flags |= SIGN;
+ case 'u':
+ break;
+
+ default:
+ tx_byte('%'), count++;
+ if (*fmt)
+ tx_byte(*fmt), count++;
+ else
+ --fmt;
+ continue;
+ }
+ if (qualifier == 'l')
+ num = va_arg(args, unsigned long);
+ else if (qualifier == 'h') {
+ num = (unsigned short) va_arg(args, int);
+ if (flags & SIGN)
+ num = (short) num;
+ } else if (flags & SIGN)
+ num = va_arg(args, int);
+ else
+ num = va_arg(args, unsigned int);
+ count += number(tx_byte, num, base, field_width, precision, flags);
+ }
+ return count;
+}
+
+/* FIXME this global makes vsprintf non-reentrant
+ */
+static char *str_buf;
+static void str_tx_byte(unsigned char byte)
+{
+ *str_buf = byte;
+ str_buf++;
+}
+
+int vsprintf(char * buf, const char *fmt, va_list args)
+{
+ int i;
+ str_buf = buf;
+ i = vtxprintf(str_tx_byte, fmt, args);
+ /* maeder/Ispiri -- The null termination was missing a deference */
+ /* and was just zeroing out the pointer instead */
+ *str_buf = '\0';
+ return i;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+ va_list args;
+ int i;
+
+ va_start(args, fmt);
+ i=vsprintf(buf,fmt,args);
+ va_end(args);
+ return i;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 15:58:34 +0000