initial import of openbios--main--1.0--patch-26

git-svn-id: svn://coreboot.org/openbios/openbios-devel@1 f158a5a8-5612-0410-a976-696ce0be7e32
2024-02-13 08:34:06 +08:00 · 2006-04-26 15:08:19 +00:00
commit 5c9eb9b45b
522 changed files with 83237 additions and 0 deletions
--- a/arch/ppc/briq/briq.c
+++ b/arch/ppc/briq/briq.c
@@ -0,0 +1,194 @@
+/* 
+ *   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 "openbios/config.h"
+#include "openbios/kernel.h"
+#include "openbios/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];	/* XXX: no buffer overflow protection... */
+	va_list args;
+	int i;
+
+	va_start(args, fmt);
+	i=vsprintf(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();
+}