xorg-server-1.4/hw/xfree86/int10/xf86int10.h

   1
   2 /*
   3  *                   XFree86 int10 module
   4  *   execute BIOS int 10h calls in x86 real mode environment
   5  *                 Copyright 1999 Egbert Eich
   6  */
   7
   8 #ifndef _XF86INT10_H
   9 #define _XF86INT10_H
  10
  11 #include <X11/Xmd.h>
  12 #include <X11/Xdefs.h>
  13 #include "xf86Pci.h"
  14
  15 #define SEG_ADDR(x) (((x) >> 4) & 0x00F000)
  16 #define SEG_OFF(x) ((x) & 0x0FFFF)
  17
  18 #define SET_BIOS_SCRATCH     0x1
  19 #define RESTORE_BIOS_SCRATCH 0x2
  20
  21 /* int10 info structure */
  22 typedef struct {
  23     int entityIndex;
  24     int scrnIndex;
  25     pointer cpuRegs;
  26     CARD16  BIOSseg;
  27     CARD16  inb40time;
  28     char * BIOSScratch;
  29     int Flags;
  30     pointer private;
  31     struct _int10Mem* mem;
  32     int num;
  33     int ax;
  34     int bx;
  35     int cx;
  36     int dx;
  37     int si;
  38     int di;
  39     int es;
  40     int bp;
  41     int flags;
  42     int stackseg;
  43     PCITAG Tag;
  44     IOADDRESS ioBase;
  45 } xf86Int10InfoRec, *xf86Int10InfoPtr;
  46
  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;
  55
  56 typedef struct {
  57     CARD8 save_msr;
  58     CARD8 save_pos102;
  59     CARD8 save_vse;
  60     CARD8 save_46e8;
  61 } legacyVGARec, *legacyVGAPtr;
  62
  63 /* OS dependent functions */
  64 xf86Int10InfoPtr xf86InitInt10(int entityIndex);
  65 xf86Int10InfoPtr xf86ExtendedInitInt10(int entityIndex, int Flags);
  66 void xf86FreeInt10(xf86Int10InfoPtr pInt);
  67 void *xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off);
  68 void xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num);
  69 pointer xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr);
  70
  71 /* x86 executor related functions */
  72 void xf86ExecX86int10(xf86Int10InfoPtr pInt);
  73
  74 #ifdef _INT10_PRIVATE
  75
  76 #define I_S_DEFAULT_INT_VECT 0xFF065
  77 #define SYS_SIZE 0x100000
  78 #define SYS_BIOS 0xF0000
  79 #if 1
  80 #define BIOS_SIZE 0x10000
  81 #else /* a bug in DGUX requires this - let's try it */
  82 #define BIOS_SIZE (0x10000 - 1)
  83 #endif
  84 #define LOW_PAGE_SIZE 0x600
  85 #define V_RAM 0xA0000
  86 #define VRAM_SIZE 0x20000
  87 #define V_BIOS_SIZE 0x10000
  88 #define V_BIOS 0xC0000
  89 #define BIOS_SCRATCH_OFF 0x449
  90 #define BIOS_SCRATCH_END 0x466
  91 #define BIOS_SCRATCH_LEN (BIOS_SCRATCH_END - BIOS_SCRATCH_OFF + 1)
  92 #define HIGH_MEM V_BIOS
  93 #define HIGH_MEM_SIZE (SYS_BIOS - HIGH_MEM)
  94 #define SEG_ADR(type, seg, reg)  type((seg << 4) + (X86_##reg))
  95 #define SEG_EADR(type, seg, reg) type((seg << 4) + (X86_E##reg))
  96
  97 #define X86_TF_MASK             0x00000100
  98 #define X86_IF_MASK             0x00000200
  99 #define X86_IOPL_MASK           0x00003000
 100 #define X86_NT_MASK             0x00004000
 101 #define X86_VM_MASK             0x00020000
 102 #define X86_AC_MASK             0x00040000
 103 #define X86_VIF_MASK            0x00080000      /* virtual interrupt flag */
 104 #define X86_VIP_MASK            0x00100000      /* virtual interrupt pending */
 105 #define X86_ID_MASK             0x00200000
 106
 107 #define MEM_RB(name, addr)      (*name->mem->rb)(name, addr)
 108 #define MEM_RW(name, addr)      (*name->mem->rw)(name, addr)
 109 #define MEM_RL(name, addr)      (*name->mem->rl)(name, addr)
 110 #define MEM_WB(name, addr, val) (*name->mem->wb)(name, addr, val)
 111 #define MEM_WW(name, addr, val) (*name->mem->ww)(name, addr, val)
 112 #define MEM_WL(name, addr, val) (*name->mem->wl)(name, addr, val)
 113
 114 /* OS dependent functions */
 115 Bool MapCurrentInt10(xf86Int10InfoPtr pInt);
 116 /* x86 executor related functions */
 117 Bool xf86Int10ExecSetup(xf86Int10InfoPtr pInt);
 118
 119 /* int.c */
 120 extern xf86Int10InfoPtr Int10Current;
 121 int int_handler(xf86Int10InfoPtr pInt);
 122
 123 /* helper_exec.c */
 124 int setup_int(xf86Int10InfoPtr pInt);
 125 void finish_int(xf86Int10InfoPtr, int sig);
 126 CARD32 getIntVect(xf86Int10InfoPtr pInt, int num);
 127 void pushw(xf86Int10InfoPtr pInt, CARD16 val);
 128 int run_bios_int(int num, xf86Int10InfoPtr pInt);
 129 void dump_code(xf86Int10InfoPtr pInt);
 130 void dump_registers(xf86Int10InfoPtr pInt);
 131 void stack_trace(xf86Int10InfoPtr pInt);
 132 xf86Int10InfoPtr getInt10Rec(int entityIndex);
 133 CARD8 bios_checksum(const CARD8 *start, int size);
 134 void LockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga);
 135 void UnlockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga);
 136 #if defined (_PC)
 137 void xf86Int10SaveRestoreBIOSVars(xf86Int10InfoPtr pInt, Bool save);
 138 #endif
 139 int port_rep_inb(xf86Int10InfoPtr pInt,
 140                  CARD16 port, CARD32 base, int d_f, CARD32 count);
 141 int port_rep_inw(xf86Int10InfoPtr pInt,
 142                  CARD16 port, CARD32 base, int d_f, CARD32 count);
 143 int port_rep_inl(xf86Int10InfoPtr pInt,
 144                  CARD16 port, CARD32 base, int d_f, CARD32 count);
 145 int port_rep_outb(xf86Int10InfoPtr pInt,
 146                   CARD16 port, CARD32 base, int d_f, CARD32 count);
 147 int port_rep_outw(xf86Int10InfoPtr pInt,
 148                   CARD16 port, CARD32 base, int d_f, CARD32 count);
 149 int port_rep_outl(xf86Int10InfoPtr pInt,
 150                   CARD16 port, CARD32 base, int d_f, CARD32 count);
 151
 152 CARD8 x_inb(CARD16 port);
 153 CARD16 x_inw(CARD16 port);
 154 void x_outb(CARD16 port, CARD8 val);
 155 void x_outw(CARD16 port, CARD16 val);
 156 CARD32 x_inl(CARD16 port);
 157 void x_outl(CARD16 port, CARD32 val);
 158
 159 CARD8 Mem_rb(CARD32 addr);
 160 CARD16 Mem_rw(CARD32 addr);
 161 CARD32 Mem_rl(CARD32 addr);
 162 void Mem_wb(CARD32 addr, CARD8 val);
 163 void Mem_ww(CARD32 addr, CARD16 val);
 164 void Mem_wl(CARD32 addr, CARD32 val);
 165
 166 /* helper_mem.c */
 167 void setup_int_vect(xf86Int10InfoPtr pInt);
 168 int setup_system_bios(void *base_addr);
 169 void reset_int_vect(xf86Int10InfoPtr pInt);
 170 void set_return_trap(xf86Int10InfoPtr pInt);
 171 void * xf86HandleInt10Options(ScrnInfoPtr pScrn, int entityIndex);
 172 Bool int10skip(const void* options);
 173 Bool int10_check_bios(int scrnIndex, int codeSeg,
 174     const unsigned char* vbiosMem);
 175 Bool initPrimary(const void* options);
 176 BusType xf86int10GetBiosLocationType(const xf86Int10InfoPtr pInt);
 177 Bool xf86int10GetBiosSegment(xf86Int10InfoPtr pInt, void *base);
 178 #ifdef DEBUG
 179 void dprint(unsigned long start, unsigned long size);
 180 #endif
 181
 182 /* pci.c */
 183 int mapPciRom(int pciEntity, unsigned char *address);
 184
 185 #endif /* _INT10_PRIVATE */
 186 #endif /* _XF86INT10_H */