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 #ifdef CONFIG_DM_PCI
  35         struct udevice *pcidev;
  36 #else
  37         pci_dev_t pcidev;
  38 #endif
  39         void *BIOSImage;
  40         u32 BIOSImageLen;
  41         u8 LowMem[1536];
  42 } BE_VGAInfo;
  43
  44 struct vbe_mode_info;
  45
  46 #ifdef CONFIG_DM_PCI
  47 int BootVideoCardBIOS(struct udevice *pcidev, BE_VGAInfo **pVGAInfo,
  48                       int clean_up);
  49 #else
  50 int BootVideoCardBIOS(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo, int clean_up);
  51 #endif
  52
  53 /* Run a BIOS ROM natively (only supported on x86 machines) */
  54 void bios_run_on_x86(struct udevice *dev, unsigned long addr, int vesa_mode,
  55                      struct vbe_mode_info *mode_info);
  56
  57 /**
  58  * bios_set_interrupt_handler() - Install an interrupt handler for the BIOS
  59  *
  60  * This installs an interrupt handler that the BIOS will call when needed.
  61  *
  62  * @intnum:             Interrupt number to install a handler for
  63  * @int_handler_func:   Function to call to handle interrupt
  64  */
  65 void bios_set_interrupt_handler(int intnum, int (*int_handler_func)(void));
  66
  67 void biosemu_set_interrupt_handler(int intnum, int (*int_func)(void));
  68
  69 #ifdef CONFIG_DM_PCI
  70 int biosemu_setup(struct udevice *pcidev, BE_VGAInfo **pVGAInfo);
  71
  72 int biosemu_run(struct udevice *dev, uchar *bios_rom, int bios_len,
  73                 BE_VGAInfo *vga_info, int clean_up, int vesa_mode,
  74                 struct vbe_mode_info *mode_info);
  75 #else
  76 int biosemu_setup(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo);
  77
  78 int biosemu_run(pci_dev_t pcidev, uchar *bios_rom, int bios_len,
  79                 BE_VGAInfo *vga_info, int clean_up, int vesa_mode,
  80                 struct vbe_mode_info *mode_info);
  81 #endif
  82
  83 #endif