4 * execute BIOS int 10h calls in x86 real mode environment
5 * Copyright 1999 Egbert Eich
12 #include <X11/Xdefs.h>
15 #define SEG_ADDR(x) (((x) >> 4) & 0x00F000)
16 #define SEG_OFF(x) ((x) & 0x0FFFF)
18 #define SET_BIOS_SCRATCH 0x1
19 #define RESTORE_BIOS_SCRATCH 0x2
21 /* int10 info structure */
31 struct _int10Mem
*mem
;
43 struct pci_device
*dev
;
44 struct pci_io_handle
*io
;
45 } xf86Int10InfoRec
, *xf86Int10InfoPtr
;
47 typedef struct _int10Mem
{
48 CARD8 (*rb
) (xf86Int10InfoPtr
, int);
49 CARD16 (*rw
) (xf86Int10InfoPtr
, int);
50 CARD32 (*rl
) (xf86Int10InfoPtr
, int);
51 void (*wb
) (xf86Int10InfoPtr
, int, CARD8
);
52 void (*ww
) (xf86Int10InfoPtr
, int, CARD16
);
53 void (*wl
) (xf86Int10InfoPtr
, int, CARD32
);
54 } int10MemRec
, *int10MemPtr
;
61 } legacyVGARec
, *legacyVGAPtr
;
63 /* OS dependent functions */
64 extern _X_EXPORT xf86Int10InfoPtr
xf86InitInt10(int entityIndex
);
65 extern _X_EXPORT xf86Int10InfoPtr
xf86ExtendedInitInt10(int entityIndex
,
67 extern _X_EXPORT
void xf86FreeInt10(xf86Int10InfoPtr pInt
);
68 extern _X_EXPORT
void *xf86Int10AllocPages(xf86Int10InfoPtr pInt
, int num
,
70 extern _X_EXPORT
void xf86Int10FreePages(xf86Int10InfoPtr pInt
, void *pbase
,
72 extern _X_EXPORT pointer
xf86int10Addr(xf86Int10InfoPtr pInt
, CARD32 addr
);
74 /* x86 executor related functions */
75 extern _X_EXPORT
void xf86ExecX86int10(xf86Int10InfoPtr pInt
);
79 #define I_S_DEFAULT_INT_VECT 0xFF065
80 #define SYS_SIZE 0x100000
81 #define SYS_BIOS 0xF0000
83 #define BIOS_SIZE 0x10000
84 #else /* a bug in DGUX requires this - let's try it */
85 #define BIOS_SIZE (0x10000 - 1)
87 #define LOW_PAGE_SIZE 0x600
89 #define VRAM_SIZE 0x20000
90 #define V_BIOS_SIZE 0x10000
91 #define V_BIOS 0xC0000
92 #define BIOS_SCRATCH_OFF 0x449
93 #define BIOS_SCRATCH_END 0x466
94 #define BIOS_SCRATCH_LEN (BIOS_SCRATCH_END - BIOS_SCRATCH_OFF + 1)
95 #define HIGH_MEM V_BIOS
96 #define HIGH_MEM_SIZE (SYS_BIOS - HIGH_MEM)
97 #define SEG_ADR(type, seg, reg) type((seg << 4) + (X86_##reg))
98 #define SEG_EADR(type, seg, reg) type((seg << 4) + (X86_E##reg))
100 #define X86_TF_MASK 0x00000100
101 #define X86_IF_MASK 0x00000200
102 #define X86_IOPL_MASK 0x00003000
103 #define X86_NT_MASK 0x00004000
104 #define X86_VM_MASK 0x00020000
105 #define X86_AC_MASK 0x00040000
106 #define X86_VIF_MASK 0x00080000 /* virtual interrupt flag */
107 #define X86_VIP_MASK 0x00100000 /* virtual interrupt pending */
108 #define X86_ID_MASK 0x00200000
110 #define MEM_RB(name, addr) (*name->mem->rb)(name, addr)
111 #define MEM_RW(name, addr) (*name->mem->rw)(name, addr)
112 #define MEM_RL(name, addr) (*name->mem->rl)(name, addr)
113 #define MEM_WB(name, addr, val) (*name->mem->wb)(name, addr, val)
114 #define MEM_WW(name, addr, val) (*name->mem->ww)(name, addr, val)
115 #define MEM_WL(name, addr, val) (*name->mem->wl)(name, addr, val)
117 /* OS dependent functions */
118 extern _X_EXPORT Bool
MapCurrentInt10(xf86Int10InfoPtr pInt
);
120 /* x86 executor related functions */
121 extern _X_EXPORT Bool
xf86Int10ExecSetup(xf86Int10InfoPtr pInt
);
124 extern _X_EXPORT xf86Int10InfoPtr Int10Current
;
125 int int_handler(xf86Int10InfoPtr pInt
);
128 int setup_int(xf86Int10InfoPtr pInt
);
129 void finish_int(xf86Int10InfoPtr
, int sig
);
130 CARD32
getIntVect(xf86Int10InfoPtr pInt
, int num
);
131 void pushw(xf86Int10InfoPtr pInt
, CARD16 val
);
132 int run_bios_int(int num
, xf86Int10InfoPtr pInt
);
133 void dump_code(xf86Int10InfoPtr pInt
);
134 void dump_registers(xf86Int10InfoPtr pInt
);
135 void stack_trace(xf86Int10InfoPtr pInt
);
136 CARD8
bios_checksum(const CARD8
*start
, int size
);
137 void LockLegacyVGA(xf86Int10InfoPtr pInt
, legacyVGAPtr vga
);
138 void UnlockLegacyVGA(xf86Int10InfoPtr pInt
, legacyVGAPtr vga
);
141 extern _X_EXPORT
void xf86Int10SaveRestoreBIOSVars(xf86Int10InfoPtr pInt
,
144 int port_rep_inb(xf86Int10InfoPtr pInt
,
145 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
146 int port_rep_inw(xf86Int10InfoPtr pInt
,
147 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
148 int port_rep_inl(xf86Int10InfoPtr pInt
,
149 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
150 int port_rep_outb(xf86Int10InfoPtr pInt
,
151 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
152 int port_rep_outw(xf86Int10InfoPtr pInt
,
153 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
154 int port_rep_outl(xf86Int10InfoPtr pInt
,
155 CARD16 port
, CARD32 base
, int d_f
, CARD32 count
);
157 CARD8
x_inb(CARD16 port
);
158 CARD16
x_inw(CARD16 port
);
159 void x_outb(CARD16 port
, CARD8 val
);
160 void x_outw(CARD16 port
, CARD16 val
);
161 CARD32
x_inl(CARD16 port
);
162 void x_outl(CARD16 port
, CARD32 val
);
164 CARD8
Mem_rb(CARD32 addr
);
165 CARD16
Mem_rw(CARD32 addr
);
166 CARD32
Mem_rl(CARD32 addr
);
167 void Mem_wb(CARD32 addr
, CARD8 val
);
168 void Mem_ww(CARD32 addr
, CARD16 val
);
169 void Mem_wl(CARD32 addr
, CARD32 val
);
172 void setup_int_vect(xf86Int10InfoPtr pInt
);
173 int setup_system_bios(void *base_addr
);
174 void reset_int_vect(xf86Int10InfoPtr pInt
);
175 void set_return_trap(xf86Int10InfoPtr pInt
);
176 extern _X_EXPORT
void *xf86HandleInt10Options(ScrnInfoPtr pScrn
,
178 Bool
int10skip(const void *options
);
179 Bool
int10_check_bios(int scrnIndex
, int codeSeg
,
180 const unsigned char *vbiosMem
);
181 Bool
initPrimary(const void *options
);
182 extern _X_EXPORT BusType
xf86int10GetBiosLocationType(const xf86Int10InfoPtr
184 extern _X_EXPORT Bool
xf86int10GetBiosSegment(xf86Int10InfoPtr pInt
,
187 void dprint(unsigned long start
, unsigned long size
);
190 #endif /* _INT10_PRIVATE */
191 #endif /* _XF86INT10_H */