1 /* 2 * From coreboot file of same name 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef _PCI_ROM_H 8 #define _PCI_ROM_H 9 10 #define PCI_ROM_HDR 0xaa55 11 #define PCI_VGA_RAM_IMAGE_START 0xc0000 12 13 struct pci_rom_header { 14 uint16_t signature; 15 uint8_t size; 16 uint8_t init[3]; 17 uint8_t reserved[0x12]; 18 uint16_t data; 19 }; 20 21 struct pci_rom_data { 22 uint32_t signature; 23 uint16_t vendor; 24 uint16_t device; 25 uint16_t reserved_1; 26 uint16_t dlen; 27 uint8_t drevision; 28 uint8_t class_lo; 29 uint16_t class_hi; 30 uint16_t ilen; 31 uint16_t irevision; 32 uint8_t type; 33 uint8_t indicator; 34 uint16_t reserved_2; 35 }; 36 37 /** 38 * pci_run_vga_bios() - Run the VGA BIOS in an x86 PC 39 * 40 * @dev: Video device containing the BIOS 41 * @int15_handler: Function to call to handle int 0x15 42 * @emulate: true to use the x86 emulator, false to run native 43 */ 44 int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), bool emulate); 45 46 /** 47 * board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects 48 * 49 * Some VGA option roms are used for several chipsets but they only have one 50 * PCI ID in their header. If we encounter such an option rom, we need to do 51 * the mapping ourselves. 52 * 53 * @vendev: Vendor and device for the video device 54 * @return standard vendor and device expected by the ROM 55 */ 56 uint32_t board_map_oprom_vendev(uint32_t vendev); 57 58 #endif 59