/* * 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; uint16_t BIOSseg; uint16_t inb40time; ScrnInfoPtr pScrn; void *cpuRegs; char *BIOSScratch; int Flags; void *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; struct pci_device *dev; struct pci_io_handle *io; } xf86Int10InfoRec, *xf86Int10InfoPtr; typedef struct _int10Mem { uint8_t (*rb) (xf86Int10InfoPtr, int); uint16_t (*rw) (xf86Int10InfoPtr, int); uint32_t (*rl) (xf86Int10InfoPtr, int); void (*wb) (xf86Int10InfoPtr, int, uint8_t); void (*ww) (xf86Int10InfoPtr, int, uint16_t); void (*wl) (xf86Int10InfoPtr, int, uint32_t); } int10MemRec, *int10MemPtr; typedef struct { uint8_t save_msr; uint8_t save_pos102; uint8_t save_vse; uint8_t save_46e8; } legacyVGARec, *legacyVGAPtr; /* OS dependent functions */ extern _X_EXPORT xf86Int10InfoPtr xf86InitInt10(int entityIndex); extern _X_EXPORT xf86Int10InfoPtr xf86ExtendedInitInt10(int entityIndex, int Flags); extern _X_EXPORT void xf86FreeInt10(xf86Int10InfoPtr pInt); extern _X_EXPORT void *xf86Int10AllocPages(xf86Int10InfoPtr pInt, int num, int *off); extern _X_EXPORT void xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num); extern _X_EXPORT void *xf86int10Addr(xf86Int10InfoPtr pInt, uint32_t addr); /* x86 executor related functions */ extern _X_EXPORT 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 */ extern _X_EXPORT Bool MapCurrentInt10(xf86Int10InfoPtr pInt); /* x86 executor related functions */ extern _X_EXPORT Bool xf86Int10ExecSetup(xf86Int10InfoPtr pInt); /* int.c */ extern _X_EXPORT xf86Int10InfoPtr Int10Current; int int_handler(xf86Int10InfoPtr pInt); /* helper_exec.c */ int setup_int(xf86Int10InfoPtr pInt); void finish_int(xf86Int10InfoPtr, int sig); uint32_t getIntVect(xf86Int10InfoPtr pInt, int num); void pushw(xf86Int10InfoPtr pInt, uint16_t val); int run_bios_int(int num, xf86Int10InfoPtr pInt); void dump_code(xf86Int10InfoPtr pInt); void dump_registers(xf86Int10InfoPtr pInt); void stack_trace(xf86Int10InfoPtr pInt); uint8_t bios_checksum(const uint8_t *start, int size); void LockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga); void UnlockLegacyVGA(xf86Int10InfoPtr pInt, legacyVGAPtr vga); #if defined (_PC) extern _X_EXPORT void xf86Int10SaveRestoreBIOSVars(xf86Int10InfoPtr pInt, Bool save); #endif int port_rep_inb(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); int port_rep_inw(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); int port_rep_inl(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); int port_rep_outb(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); int port_rep_outw(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); int port_rep_outl(xf86Int10InfoPtr pInt, uint16_t port, uint32_t base, int d_f, uint32_t count); uint8_t x_inb(uint16_t port); uint16_t x_inw(uint16_t port); void x_outb(uint16_t port, uint8_t val); void x_outw(uint16_t port, uint16_t val); uint32_t x_inl(uint16_t port); void x_outl(uint16_t port, uint32_t val); uint8_t Mem_rb(uint32_t addr); uint16_t Mem_rw(uint32_t addr); uint32_t Mem_rl(uint32_t addr); void Mem_wb(uint32_t addr, uint8_t val); void Mem_ww(uint32_t addr, uint16_t val); void Mem_wl(uint32_t addr, uint32_t 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); extern _X_EXPORT 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); extern _X_EXPORT BusType xf86int10GetBiosLocationType(const xf86Int10InfoPtr pInt); extern _X_EXPORT Bool xf86int10GetBiosSegment(xf86Int10InfoPtr pInt, void *base); #ifdef DEBUG void dprint(unsigned long start, unsigned long size); #endif #endif /* _INT10_PRIVATE */ #endif /* _XF86INT10_H */