194 lines
3 KiB
C
194 lines
3 KiB
C
/*
|
|
* Creation Date: <2004/08/28 18:38:22 greg>
|
|
* Time-stamp: <2004/08/28 18:38:22 greg>
|
|
*
|
|
* <briq.c>
|
|
*
|
|
* Copyright (C) 2004, Greg Watson
|
|
*
|
|
* derived from mol.c
|
|
*
|
|
* Copyright (C) 2003, 2004 Samuel Rydh (samuel@ibrium.se)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "kernel/kernel.h"
|
|
#include "arch/common/nvram.h"
|
|
#include "libc/vsprintf.h"
|
|
#include "libc/string.h"
|
|
#include "briq/briq.h"
|
|
#include <stdarg.h>
|
|
|
|
#define UART_BASE 0x3f8
|
|
|
|
unsigned long virt_offset = 0;
|
|
|
|
void
|
|
exit( int status )
|
|
{
|
|
for (;;);
|
|
}
|
|
|
|
void
|
|
fatal_error( const char *err )
|
|
{
|
|
printk("Fatal error: %s\n", err );
|
|
exit(0);
|
|
}
|
|
|
|
void
|
|
panic( const char *err )
|
|
{
|
|
printk("Panic: %s\n", err );
|
|
exit(0);
|
|
|
|
/* won't come here... this keeps the gcc happy */
|
|
for( ;; )
|
|
;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* print using OSI interface */
|
|
/************************************************************************/
|
|
|
|
static int do_indent;
|
|
|
|
int
|
|
printk( const char *fmt, ... )
|
|
{
|
|
char *p, buf[1024];
|
|
va_list args;
|
|
int i;
|
|
|
|
va_start(args, fmt);
|
|
i = vnsprintf(buf, sizeof(buf), fmt, args);
|
|
va_end(args);
|
|
|
|
for( p=buf; *p; p++ ) {
|
|
if( *p == '\n' )
|
|
do_indent = 0;
|
|
if( do_indent++ == 1 ) {
|
|
putchar( '>' );
|
|
putchar( '>' );
|
|
putchar( ' ' );
|
|
}
|
|
putchar( *p );
|
|
}
|
|
return i;
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* TTY iface */
|
|
/************************************************************************/
|
|
|
|
static int ttychar = -1;
|
|
|
|
static int
|
|
tty_avail( void )
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
tty_putchar( int c )
|
|
{
|
|
if( tty_avail() ) {
|
|
while (!(inb(UART_BASE + 0x05) & 0x20))
|
|
;
|
|
outb(c, UART_BASE);
|
|
while (!(inb(UART_BASE + 0x05) & 0x40))
|
|
;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
int
|
|
availchar( void )
|
|
{
|
|
if( !tty_avail() )
|
|
return 0;
|
|
|
|
if( ttychar < 0 )
|
|
ttychar = inb(UART_BASE);
|
|
return (ttychar >= 0);
|
|
}
|
|
|
|
int
|
|
getchar( void )
|
|
{
|
|
int ch;
|
|
|
|
if( !tty_avail() )
|
|
return 0;
|
|
|
|
if( ttychar < 0 )
|
|
return inb(UART_BASE);
|
|
ch = ttychar;
|
|
ttychar = -1;
|
|
return ch;
|
|
}
|
|
|
|
int
|
|
putchar( int c )
|
|
{
|
|
if (c == '\n')
|
|
tty_putchar('\r');
|
|
return tty_putchar(c);
|
|
}
|
|
|
|
|
|
/************************************************************************/
|
|
/* briQ specific stuff */
|
|
/************************************************************************/
|
|
|
|
static char nvram[2048];
|
|
|
|
void
|
|
dump_nvram(void)
|
|
{
|
|
static char hexdigit[] = "0123456789abcdef";
|
|
int i;
|
|
for (i = 0; i < 16*4; i++)
|
|
{
|
|
printk ("%c", hexdigit[nvram[i] >> 4]);
|
|
printk ("%c", hexdigit[nvram[i] % 16]);
|
|
if (!((i + 1) % 16))
|
|
{
|
|
printk ("\n");
|
|
}
|
|
else
|
|
{
|
|
printk (" ");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
arch_nvram_size( void )
|
|
{
|
|
return sizeof(nvram);
|
|
}
|
|
|
|
void
|
|
arch_nvram_put( char *buf )
|
|
{
|
|
memcpy(nvram, buf, sizeof(nvram));
|
|
printk("new nvram:\n");
|
|
dump_nvram();
|
|
}
|
|
|
|
void
|
|
arch_nvram_get( char *buf )
|
|
{
|
|
memcpy(buf, nvram, sizeof(nvram));
|
|
printk("current nvram:\n");
|
|
dump_nvram();
|
|
}
|