| 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 */ |