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 /**************************************************************************** 14 REMARKS: 15 Data structure used to describe the details for the BIOS emulator system 16 environment as used by the X86 emulator library. 17 18 HEADER: 19 biosemu.h 20 21 MEMBERS: 22 vgaInfo - VGA BIOS information structure 23 biosmem_base - Base of the BIOS image 24 biosmem_limit - Limit of the BIOS image 25 busmem_base - Base of the VGA bus memory 26 ****************************************************************************/ 27 typedef 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 39 struct vbe_mode_info; 40 41 int BootVideoCardBIOS(struct udevice *pcidev, BE_VGAInfo **pVGAInfo, 42 int clean_up); 43 44 /* Run a BIOS ROM natively (only supported on x86 machines) */ 45 void 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 */ 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(struct udevice *pcidev, BE_VGAInfo **pVGAInfo); 61 62 int 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