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/* Project: OSLib
* Description: The OS Construction Kit
* Date: 1.6.2000
* Idea by: Luca Abeni & Gerardo Lamastra
*
* OSLib is an SO project aimed at developing a common, easy-to-use
* low-level infrastructure for developing OS kernels and Embedded
* Applications; it partially derives from the HARTIK project but it
* currently is independently developed.
*
* OSLib is distributed under GPL License, and some of its code has
* been derived from the Linux kernel source; also some important
* ideas come from studying the DJGPP go32 extender.
*
* We acknowledge the Linux Community, Free Software Foundation,
* D.J. Delorie and all the other developers who believe in the
* freedom of software and ideas.
*
* For legalese, check out the included GPL license.
*/
/* For accessing BIOS calls returning in Real Mode, or using VM86 */
#ifndef __LL_I386_X_BIOS_H__
#define __LL_I386_X_BIOS_H__
#include <ll/i386/defs.h>
BEGIN_DEF
#include <ll/i386/hw-data.h>
#include <ll/i386/hw-instr.h>
#define DOS_OFF(x) ((DWORD)(x) & 0x000F)
#define DOS_SEG(x) (((DWORD)(x) & 0xFFFF0) >> 4)
typedef union x_regs16 {
struct {
WORD ax __attribute__ ((packed));
WORD bx __attribute__ ((packed));
WORD cx __attribute__ ((packed));
WORD dx __attribute__ ((packed));
WORD si __attribute__ ((packed));
WORD di __attribute__ ((packed));
WORD cflag __attribute__ ((packed));
WORD _pad __attribute__ ((packed));
} x __attribute__ ((packed));
struct {
BYTE al,ah __attribute__ ((packed));
BYTE bl,bh __attribute__ ((packed));
BYTE cl,ch __attribute__ ((packed));
BYTE dl,dh __attribute__ ((packed));
} h __attribute__ ((packed));
} X_REGS16;
typedef struct x_sregs16 {
WORD es __attribute__ ((packed));
WORD cs __attribute__ ((packed));
WORD ss __attribute__ ((packed));
WORD ds __attribute__ ((packed));
} X_SREGS16;
typedef struct {
/* The GDT linear address inheritable from X */
DWORD _GDT_base;
/* These are used for BIOS calling */
X_REGS16 _ir;
X_REGS16 _or;
X_SREGS16 _sr;
DWORD _irqno;
/* This is the X version */
DWORD _ver;
} X_CALLBIOS;
X_CALLBIOS * x_bios_address(void);
void X_meminfo(LIN_ADDR *b1,DWORD *s1,LIN_ADDR *b2,DWORD *s2);
void X_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s);
void vm86_init();
TSS *vm86_get_tss(void);
int vm86_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s);
END_DEF
#endif