LXR uboot/include/bios

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 1996-1999 SciTech Software, Inc.
   4 */
   5
   6#ifndef _BIOS_EMUL_H
   7#define _BIOS_EMUL_H
   8
   9/* Include the register header directly here */
  10#include "../drivers/bios_emulator/include/x86emu/regs.h"
  11#include <pci.h>
  12
  13/****************************************************************************
  14REMARKS:
  15Data structure used to describe the details for the BIOS emulator system
  16environment as used by the X86 emulator library.
  17
  18HEADER:
  19biosemu.h
  20
  21MEMBERS:
  22vgaInfo         - VGA BIOS information structure
  23biosmem_base    - Base of the BIOS image
  24biosmem_limit   - Limit of the BIOS image
  25busmem_base     - Base of the VGA bus memory
  26****************************************************************************/
  27typedef struct {
  28        int function;
  29        int device;
  30        int bus;
  31        u32 VendorID;
  32        u32 DeviceID;
  33        struct udevice *pcidev;
  34        void *BIOSImage;
  35        u32 BIOSImageLen;
  36        u8 LowMem[1536];
  37} BE_VGAInfo;
  38
  39struct vbe_mode_info;
  40
  41int BootVideoCardBIOS(struct udevice *pcidev, BE_VGAInfo **pVGAInfo,
  42                      int clean_up);
  43
  44/* Run a BIOS ROM natively (only supported on x86 machines) */
  45void bios_run_on_x86(struct udevice *dev, 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 */
  56void bios_set_interrupt_handler(int intnum, int (*int_handler_func)(void));
  57
  58void biosemu_set_interrupt_handler(int intnum, int (*int_func)(void));
  59
  60int biosemu_setup(struct udevice *pcidev, BE_VGAInfo **pVGAInfo);
  61
  62int biosemu_run(struct udevice *dev, 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
  67