include/bios_emul.h

   1 /*
   2  * Copyright (C) 1996-1999 SciTech Software, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0
   5  */
   6
   7 #ifndef _BIOS_EMUL_H
   8 #define _BIOS_EMUL_H
   9
  10 /* Include the register header directly here */
  11 #include "../drivers/bios_emulator/include/x86emu/regs.h"
  12 #include <pci.h>
  13
  14 /****************************************************************************
  15 REMARKS:
  16 Data structure used to describe the details for the BIOS emulator system
  17 environment as used by the X86 emulator library.
  18
  19 HEADER:
  20 biosemu.h
  21
  22 MEMBERS:
  23 vgaInfo         - VGA BIOS information structure
  24 biosmem_base    - Base of the BIOS image
  25 biosmem_limit   - Limit of the BIOS image
  26 busmem_base     - Base of the VGA bus memory
  27 ****************************************************************************/
  28 typedef struct {
  29         int function;
  30         int device;
  31         int bus;
  32         u32 VendorID;
  33         u32 DeviceID;
  34         pci_dev_t pcidev;
  35         void *BIOSImage;
  36         u32 BIOSImageLen;
  37         u8 LowMem[1536];
  38 } BE_VGAInfo;
  39
  40 struct vbe_mode_info;
  41
  42 int BootVideoCardBIOS(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo, int cleanUp);
  43
  44 /* Run a BIOS ROM natively (only supported on x86 machines) */
  45 void bios_run_on_x86(pci_dev_t pcidev, unsigned long addr, int vesa_mode,
  46                      struct vbe_mode_info *mode_info);
  47
  48 /**
  49  * bios_set_interrupt_handler() - Install an interrupt handler for the BIOS
  50  *
  51  * This installs an interrupt handler that the BIOS will call when needed.
  52  *
  53  * @intnum:             Interrupt number to install a handler for
  54  * @int_handler_func:   Function to call to handle interrupt
  55  */
  56 void bios_set_interrupt_handler(int intnum, int (*int_handler_func)(void));
  57
  58 void biosemu_set_interrupt_handler(int intnum, int (*int_func)(void));
  59
  60 int biosemu_setup(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo);
  61
  62 int biosemu_run(pci_dev_t pcidev, uchar *bios_rom, int bios_len,
  63                 BE_VGAInfo *vga_info, int clean_up, int vesa_mode,
  64                 struct vbe_mode_info *mode_info);
  65
  66 #endif