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(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(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 67