HWInfo wieder eingefuegt, da mit kudzu zu viele Segmentation Faults liefert.

[ipfire-2.x.git] / src / hwinfo / src / int10 / vm86_struct.h

diff --git a/src/hwinfo/src/int10/vm86_struct.h b/src/hwinfo/src/int10/vm86_struct.h
new file mode 100644 (file)
index 0000000..772e6ca
--- /dev/null
+++ b/src/hwinfo/src/int10/vm86_struct.h
@@ -0,0 +1,135 @@
+#ifndef _LINUX_VM86_H
+#define _LINUX_VM86_H
+
+/*
+ * I'm guessing at the VIF/VIP flag usage, but hope that this is how
+ * the Pentium uses them. Linux will return from vm86 mode when both
+ * VIF and VIP is set.
+ *
+ * On a Pentium, we could probably optimize the virtual flags directly
+ * in the eflags register instead of doing it "by hand" in vflags...
+ *
+ * Linus
+ */
+
+#define TF_MASK                0x00000100
+#define IF_MASK                0x00000200
+#define IOPL_MASK      0x00003000
+#define NT_MASK                0x00004000
+#define VM_MASK                0x00020000
+#define AC_MASK                0x00040000
+#define VIF_MASK       0x00080000      /* virtual interrupt flag */
+#define VIP_MASK       0x00100000      /* virtual interrupt pending */
+#define ID_MASK                0x00200000
+
+#define BIOSSEG                0x0f000
+
+#define CPU_086                0
+#define CPU_186                1
+#define CPU_286                2
+#define CPU_386                3
+#define CPU_486                4
+#define CPU_586                5
+
+/*
+ * Return values for the 'vm86()' system call
+ */
+#define VM86_TYPE(retval)      ((retval) & 0xff)
+#define VM86_ARG(retval)       ((retval) >> 8)
+
+#define VM86_SIGNAL    0       /* return due to signal */
+#define VM86_UNKNOWN   1       /* unhandled GP fault - IO-instruction or similar */
+#define VM86_INTx      2       /* int3/int x instruction (ARG = x) */
+#define VM86_STI       3       /* sti/popf/iret instruction enabled virtual interrupts */
+
+/*
+ * Additional return values when invoking new vm86()
+ */
+#define VM86_PICRETURN 4       /* return due to pending PIC request */
+#define VM86_TRAP      6       /* return due to DOS-debugger request */
+
+/*
+ * function codes when invoking new vm86()
+ */
+#define VM86_PLUS_INSTALL_CHECK        0
+#define VM86_ENTER             1
+#define VM86_ENTER_NO_BYPASS   2
+#define        VM86_REQUEST_IRQ        3
+#define VM86_FREE_IRQ          4
+#define VM86_GET_IRQ_BITS      5
+#define VM86_GET_AND_RESET_IRQ 6
+
+/*
+ * This is the stack-layout seen by the user space program when we have
+ * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
+ * is 'kernel_vm86_regs' (see below).
+ */
+
+struct vm86_regs {
+/*
+ * normal regs, with special meaning for the segment descriptors..
+ */
+       long ebx;
+       long ecx;
+       long edx;
+       long esi;
+       long edi;
+       long ebp;
+       long eax;
+       long __null_ds;
+       long __null_es;
+       long __null_fs;
+       long __null_gs;
+       long orig_eax;
+       long eip;
+       unsigned short cs, __csh;
+       long eflags;
+       long esp;
+       unsigned short ss, __ssh;
+/*
+ * these are specific to v86 mode:
+ */
+       unsigned short es, __esh;
+       unsigned short ds, __dsh;
+       unsigned short fs, __fsh;
+       unsigned short gs, __gsh;
+};
+
+struct revectored_struct {
+       unsigned long __map[8];                 /* 256 bits */
+};
+
+struct vm86_struct {
+       struct vm86_regs regs;
+       unsigned long flags;
+       unsigned long screen_bitmap;
+       unsigned long cpu_type;
+       struct revectored_struct int_revectored;
+       struct revectored_struct int21_revectored;
+};
+
+/*
+ * flags masks
+ */
+#define VM86_SCREEN_BITMAP     0x0001
+
+struct vm86plus_info_struct {
+       unsigned long force_return_for_pic:1;
+       unsigned long vm86dbg_active:1;       /* for debugger */
+       unsigned long vm86dbg_TFpendig:1;     /* for debugger */
+       unsigned long unused:28;
+       unsigned long is_vm86pus:1;           /* for vm86 internal use */
+       unsigned char vm86dbg_intxxtab[32];   /* for debugger */
+};
+
+struct vm86plus_struct {
+       struct vm86_regs regs;
+       unsigned long flags;
+       unsigned long screen_bitmap;
+       unsigned long cpu_type;
+       struct revectored_struct int_revectored;
+       struct revectored_struct int21_revectored;
+       struct vm86plus_info_struct vm86plus;
+};
+
+#endif