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https://github.com/AsahiLinux/u-boot
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4c59f95327
As well as locating the ROM on the PCI bus, allow the ROM to be supplied to the emulator. Split the init up a little so that callers can supply their own interrupt routines. Also allow a vesa mode to be provided, to be selected once the BIOS run is complete. Signed-off-by: Simon Glass <sjg@chromium.org>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Copyright (C) 1996-1999 SciTech Software, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef _BIOS_EMUL_H
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#define _BIOS_EMUL_H
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/* Include the register header directly here */
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#include "../drivers/bios_emulator/include/x86emu/regs.h"
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#include <pci.h>
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/****************************************************************************
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REMARKS:
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Data structure used to describe the details for the BIOS emulator system
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environment as used by the X86 emulator library.
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HEADER:
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biosemu.h
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MEMBERS:
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vgaInfo - VGA BIOS information structure
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biosmem_base - Base of the BIOS image
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biosmem_limit - Limit of the BIOS image
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busmem_base - Base of the VGA bus memory
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****************************************************************************/
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typedef struct {
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int function;
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int device;
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int bus;
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u32 VendorID;
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u32 DeviceID;
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pci_dev_t pcidev;
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void *BIOSImage;
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u32 BIOSImageLen;
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u8 LowMem[1536];
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} BE_VGAInfo;
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struct vbe_mode_info;
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int BootVideoCardBIOS(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo, int cleanUp);
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/* Run a BIOS ROM natively (only supported on x86 machines) */
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void bios_run_on_x86(pci_dev_t pcidev, unsigned long addr, int vesa_mode,
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struct vbe_mode_info *mode_info);
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/**
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* bios_set_interrupt_handler() - Install an interrupt handler for the BIOS
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*
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* This installs an interrupt handler that the BIOS will call when needed.
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*
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* @intnum: Interrupt number to install a handler for
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* @int_handler_func: Function to call to handle interrupt
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*/
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void bios_set_interrupt_handler(int intnum, int (*int_handler_func)(void));
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void biosemu_set_interrupt_handler(int intnum, int (*int_func)(void));
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int biosemu_setup(pci_dev_t pcidev, BE_VGAInfo **pVGAInfo);
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int biosemu_run(pci_dev_t pcidev, uchar *bios_rom, int bios_len,
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BE_VGAInfo *vga_info, int clean_up, int vesa_mode,
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struct vbe_mode_info *mode_info);
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#endif
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