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     CARD16 BIOSseg;
  25     CARD16 inb40time;
  26     ScrnInfoPtr pScrn;
  27     pointer cpuRegs;
  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     struct pci_device *dev;
  44     struct pci_io_handle *io;
  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 extern _X_EXPORT xf86Int10InfoPtr xf86InitInt10(int entityIndex);
  65 extern _X_EXPORT xf86Int10InfoPtr xf86ExtendedInitInt10(int entityIndex,
  66                                                         int Flags);
  67 extern _X_EXPORT void xf86FreeInt10(xf86Int10InfoPtr pInt);
  68 extern _X_EXPORT void *xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num,
  69                                            int *off);
  70 extern _X_EXPORT void xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase,
  71                                          int num);
  72 extern _X_EXPORT pointer xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr);
  73
  74 /* x86 executor related functions */
  75 extern _X_EXPORT void xf86ExecX86int10(xf86Int10InfoPtr pInt);
  76
  77 #ifdef _INT10_PRIVATE
  78
  79 #define I_S_DEFAULT_INT_VECT 0xFF065
  80 #define SYS_SIZE 0x100000
  81 #define SYS_BIOS 0xF0000
  82 #if 1
  83 #define BIOS_SIZE 0x10000
  84 #else                           /* a bug in DGUX requires this - let's try it */
  85 #define BIOS_SIZE (0x10000 - 1)
  86 #endif
  87 #define LOW_PAGE_SIZE 0x600
  88 #define V_RAM 0xA0000
  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))
  99
 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
 109
 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)
 116
 117 /* OS dependent functions */
 118 extern _X_EXPORT Bool MapCurrentInt10(xf86Int10InfoPtr pInt);
 119
 120 /* x86 executor related functions */
 121 extern _X_EXPORT Bool xf86Int10ExecSetup(xf86Int10InfoPtr pInt);
 122
 123 /* int.c */
 124 extern _X_EXPORT xf86Int10InfoPtr Int10Current;
 125 int int_handler(xf86Int10InfoPtr pInt);
 126
 127 /* helper_exec.c */
 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);
 139
 140 #if defined (_PC)
 141 extern _X_EXPORT void xf86Int10SaveRestoreBIOSVars(xf86Int10InfoPtr pInt,
 142                                                    Bool save);
 143 #endif
 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);
 156
 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);
 163
 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);
 170
 171 /* helper_mem.c */
 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,
 177                                               int entityIndex);
 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
 183                                                       pInt);
 184 extern _X_EXPORT Bool xf86int10GetBiosSegment(xf86Int10InfoPtr pInt,
 185                                               void *base);
 186 #ifdef DEBUG
 187 void dprint(unsigned long start, unsigned long size);
 188 #endif
 189
 190 #endif                          /* _INT10_PRIVATE */
 191 #endif                          /* _XF86INT10_H */