blob: 8b2674cf87940fbcdd79b456695718a1f822b178
| 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 |