/* * XFree86 int10 module * execute BIOS int 10h calls in x86 real mode environment * Copyright 1999 Egbert Eich */ #ifndef _XF86INT10_H #define _XF86INT10_H #include #include #include "xf86Pci.h" #define SEG_ADDR(x) (((x) >> 4) & 0x00F000) #define SEG_OFF(x) ((x) & 0x0FFFF) #define SET_BIOS_SCRATCH 0x1 #define RESTORE_BIOS_SCRATCH 0x2 /* int10 info structure */ typedef struct { int entityIndex; int scrnIndex; pointer cpuRegs; CARD16 BIOSseg; CARD16 inb40time; char * BIOSScratch; int Flags; pointer private; struct _int10Mem* mem; int num; int ax; int bx; int cx; int dx; int si; int di; int es; int bp; int flags; int stackseg; PCITAG Tag; IOADDRESS ioBase; } xf86Int10InfoRec, *xf86Int10InfoPtr; typedef struct _int10Mem { CARD8(*rb)(xf86Int10InfoPtr, int); CARD16(*rw)(xf86Int10InfoPtr, int); CARD32(*rl)(xf86Int10InfoPtr, int); void(*wb)(xf86Int10InfoPtr, int, CARD8); void(*ww)(xf86Int10InfoPtr, int, CARD16); void(*wl)(xf86Int10InfoPtr, int, CARD32); } int10MemRec, *int10MemPtr; typedef struct { CARD8 save_msr; CARD8 save_pos102; CARD8 save_vse; CARD8 save_46e8; } legacyVGARec, *legacyVGAPtr; typedef struct { BusType bus; union { struct { int bus; int dev; int func; } pci; int legacy; } location; } xf86int10BiosLocation, *xf86int10BiosLocationPtr; /* OS dependent functions */ xf86Int10InfoPtr xf86InitInt10(int entityIndex); xf86Int10InfoPtr xf86ExtendedInitInt10(int entityIndex, int Flags); void xf86FreeInt10(xf86Int10InfoPtr pInt); void *xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off); void xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num); pointer xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr); /* x86 executor related functions */ void xf86ExecX86int10(xf86Int10InfoPtr pInt); #ifdef _INT10_PRIVATE #define I_S_DEFAULT_INT_VECT 0xFF065 #define SYS_SIZE 0x100000 #define SYS_BIOS 0xF0000 #if 1 #define BIOS_SIZE 0x10000 #else /* a bug in DGUX requires this - let's try it */ #define BIOS_SIZE (0x10000 - 1) #endif #define LOW_PAGE_SIZE 0x600 #define V_RAM 0xA0000 #define VRAM_SIZE 0x20000 #define V_BIOS_SIZE 0x10000 #define V_BIOS 0xC0000 #define BIOS_SCRATCH_OFF 0x449 #define BIOS_SCRATCH_END 0x466 #define BIOS_SCRATCH_LEN (BIOS_SCRATCH_END - BIOS_SCRATCH_OFF + 1) #define HIGH_MEM V_BIOS #define HIGH_MEM_SIZE (SYS_BIOS - HIGH_MEM) #define SEG_ADR(type, seg, reg) type((seg << 4) + (X86_##reg)) #define SEG_EADR(type, seg, reg) type((seg << 4) + (X86_E##reg)) #define X86_TF_MASK 0x00000100 #define X86_IF_MASK 0x00000200 #define X86_IOPL_MASK 0x00003000 #define X86_NT_MASK 0x00004000 #define X86_VM_MASK 0x00020000 #define X86_AC_MASK 0x00040000 #define X86_VIF_MASK 0x00080000 /* virtual interrupt flag */ #define X86_VIP_MASK 0x00100000 /* virtual interrupt pending */ #define X86_ID_MASK 0x00200000 #define MEM_RB(name, addr) (*name->mem->rb)(name, addr) #define MEM_RW(name, addr) (*name->mem->rw)(name, addr) #define MEM_RL(name, addr) (*name->mem->rl)(name, addr) #define MEM_WB(name, addr, val) (*name->mem->wb)(name, addr, val) #define MEM_WW(name, addr, val) (*name->mem->ww)(name, addr, val) #define MEM_WL(name, addr, val) (*name->mem->wl)(name, addr, val) /* OS dependent functions */ Bool MapCurrentInt10(xf86Int10InfoPtr pInt); /* x86 executor related functions */ Bool xf86Int10ExecSetup(xf86Int10InfoPtr pInt); /* int.c */ extern xf86Int10InfoPtr Int10Current; int int_handler(xf86Int10InfoPtr pInt); /* helper_exec.c */ int setup_int(xf86Int10InfoPtr pInt); void finish_int(xf86Int10InfoPtr, int sig); CARD32 getIntVect(xf86Int10InfoPtr pInt, int num); void pushw(xf86Int10InfoPtr pInt, CARD16 val); int run_bios_int(int num, xf86Int10InfoPtr pInt); void dump_code(xf86Int10InfoPtr pInt); void dump_registers(xf86Int10InfoPtr pInt); void stack_trace(xf86Int10InfoPtr pInt); xf86Int10InfoPtr getInt10Rec(int entityIndex); CARD8 bios_checksum(const CARD8 *start, int size); void LockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga); void UnlockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga); #if defined (_PC) void xf86Int10SaveRestoreBIOSVars(xf86Int10InfoPtr pInt, Bool save); #endif int port_rep_inb(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); int port_rep_inw(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); int port_rep_inl(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); int port_rep_outb(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); int port_rep_outw(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); int port_rep_outl(xf86Int10InfoPtr pInt, CARD16 port, CARD32 base, int d_f, CARD32 count); CARD8 x_inb(CARD16 port); CARD16 x_inw(CARD16 port); void x_outb(CARD16 port, CARD8 val); void x_outw(CARD16 port, CARD16 val); CARD32 x_inl(CARD16 port); void x_outl(CARD16 port, CARD32 val); CARD8 Mem_rb(CARD32 addr); CARD16 Mem_rw(CARD32 addr); CARD32 Mem_rl(CARD32 addr); void Mem_wb(CARD32 addr, CARD8 val); void Mem_ww(CARD32 addr, CARD16 val); void Mem_wl(CARD32 addr, CARD32 val); /* helper_mem.c */ void setup_int_vect(xf86Int10InfoPtr pInt); int setup_system_bios(void *base_addr); void reset_int_vect(xf86Int10InfoPtr pInt); void set_return_trap(xf86Int10InfoPtr pInt); void * xf86HandleInt10Options(ScrnInfoPtr pScrn, int entityIndex); Bool int10skip(const void* options); Bool int10_check_bios(int scrnIndex, int codeSeg, const unsigned char* vbiosMem); Bool initPrimary(const void* options); void xf86int10ParseBiosLocation(const void* options, xf86int10BiosLocationPtr bios); BusType xf86int10GetBiosLocationType(const xf86Int10InfoPtr pInt, const xf86int10BiosLocationPtr bios); Bool xf86int10GetBiosSegment(xf86Int10InfoPtr pInt, const xf86int10BiosLocationPtr bios, void * base); #ifdef DEBUG void dprint(unsigned long start, unsigned long size); #endif /* pci.c */ int mapPciRom(int pciEntity, unsigned char *address); #endif /* _INT10_PRIVATE */ #endif /* _XF86INT10_H */