first shot of legacybios emulation.

does not work yet.. sorry :-(


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1119 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

util/extensions/legacybios/arch/x86/include/io.h

@@ -0,0 +1,55 @@
+/* I/O implementation
+ *
+ * Copyright (C) 2003 Stefan Reinauer
+ *
+ * See the file "COPYING" for further information about
+ * the copyright and warranty status of this work.
+ * 
+ * this code is inspired by the linux kernel
+ *
+ */
+
+#ifndef IO_H
+#define IO_H
+
+#include <types.h>
+
+#define __EXTERN__ extern
+
+__EXTERN__ inline u8 inb(u32 port)
+{
+	u8 result;
+	__asm__ __volatile__ ( "inb %w1,%0" :"=a" (result) :"Nd" (port));
+	return result;
+}
+
+__EXTERN__ inline u16 inw(u32 port)
+{
+	u16 result;
+	__asm__ __volatile__ ( "inw %w1,%0" :"=a" (result) :"Nd" (port));
+	return result;
+}
+
+__EXTERN__ inline u32 inl(u32 port)
+{
+	u32 result;
+	__asm__ __volatile__ ( "inl %w1,%0" :"=a" (result) :"Nd" (port));
+	return result;
+}
+
+__EXTERN__ inline void outb (u32 port, u8 value)
+{
+	__asm__ __volatile__ ( "outb %b0,%w1" : :"a" (value), "Nd" (port));
+}
+
+__EXTERN__ inline void outw (u32 port, u16 value)
+{
+	__asm__ __volatile__ ( "outw %w0,%w1" : :"a" (value), "Nd" (port));
+}
+
+__EXTERN__ inline void outl (u32 port, u32 value)
+{
+	__asm__ __volatile__ ( "outl %0,%w1" : :"a" (value), "Nd" (port));
+}
+
+#endif /* IO_H */

util/extensions/legacybios/arch/x86/include/multiboot.h

@@ -0,0 +1,96 @@
+/* multiboot.h 
+ * header for multiboot 
+ *
+ * Copyright (C) 2003 Stefan Reinauer
+ *
+ * See the file "COPYING" for further information about
+ * the copyright and warranty status of this work.
+ */
+
+/* magic number for multiboot header */
+#define MULTIBOOT_HEADER_MAGIC		0x1BADB002
+
+/* flags for multiboot header */
+#define MULTIBOOT_HEADER_FLAGS		0x00010003
+
+/* magic number passed by multiboot-compliant boot loader.  */
+#define MULTIBOOT_BOOTLOADER_MAGIC	0x2BADB002
+
+/* The size of our stack (8KB).  */
+#define STACK_SIZE			0x2000
+
+/* C symbol format. HAVE_ASM_USCORE is defined by configure.  */
+#ifdef HAVE_ASM_USCORE
+# define EXT_C(sym)			_ ## sym
+#else
+# define EXT_C(sym)			sym
+#endif
+
+#ifndef ASM
+/* We don't want these declarations in boot.S  */
+
+/* multiboot header */
+typedef struct multiboot_header {
+	unsigned long magic;
+	unsigned long flags;
+	unsigned long checksum;
+	unsigned long header_addr;
+	unsigned long load_addr;
+	unsigned long load_end_addr;
+	unsigned long bss_end_addr;
+	unsigned long entry_addr;
+} multiboot_header_t;
+
+/* symbol table for a.out */
+typedef struct aout_symbol_table {
+	unsigned long tabsize;
+	unsigned long strsize;
+	unsigned long addr;
+	unsigned long reserved;
+} aout_symbol_table_t;
+
+/* section header table for ELF */
+typedef struct elf_section_header_table {
+	unsigned long num;
+	unsigned long size;
+	unsigned long addr;
+	unsigned long shndx;
+} elf_section_header_table_t;
+
+/* multiboot information */
+typedef struct multiboot_info {
+	unsigned long flags;
+	unsigned long mem_lower;
+	unsigned long mem_upper;
+	unsigned long boot_device;
+	unsigned long cmdline;
+	unsigned long mods_count;
+	unsigned long mods_addr;
+	union {
+		aout_symbol_table_t aout_sym;
+		elf_section_header_table_t elf_sec;
+	} u;
+	unsigned long mmap_length;
+	unsigned long mmap_addr;
+} multiboot_info_t;
+
+/* module structure */
+typedef struct module {
+	unsigned long mod_start;
+	unsigned long mod_end;
+	unsigned long string;
+	unsigned long reserved;
+} module_t;
+
+/* memory map. Be careful that the offset 0 is base_addr_low
+   but no size.  */
+typedef struct memory_map {
+	unsigned long size;
+	unsigned long base_addr_low;
+	unsigned long base_addr_high;
+	unsigned long length_low;
+	unsigned long length_high;
+	unsigned long type;
+} memory_map_t;
+
+#endif				/* ! ASM */