diff options
Diffstat (limited to 'include/pci_rom.h')
| -rw-r--r-- | include/pci_rom.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/include/pci_rom.h b/include/pci_rom.h new file mode 100644 index 0000000..8b2674c --- /dev/null +++ b/include/pci_rom.h @@ -0,0 +1,58 @@ +/* + * From coreboot file of same name + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _PCI_ROM_H +#define _PCI_ROM_H + +#define PCI_ROM_HDR 0xaa55 +#define PCI_VGA_RAM_IMAGE_START 0xc0000 + +struct pci_rom_header { + uint16_t signature; + uint8_t size; + uint8_t init[3]; + uint8_t reserved[0x12]; + uint16_t data; +}; + +struct pci_rom_data { + uint32_t signature; + uint16_t vendor; + uint16_t device; + uint16_t reserved_1; + uint16_t dlen; + uint8_t drevision; + uint8_t class_lo; + uint16_t class_hi; + uint16_t ilen; + uint16_t irevision; + uint8_t type; + uint8_t indicator; + uint16_t reserved_2; +}; + + /** + * pci_run_vga_bios() - Run the VGA BIOS in an x86 PC + * + * @dev: Video device containing the BIOS + * @int15_handler: Function to call to handle int 0x15 + * @emulate: true to use the x86 emulator, false to run native + */ +int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), bool emulate); + +/** + * board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects + * + * Some VGA option roms are used for several chipsets but they only have one + * PCI ID in their header. If we encounter such an option rom, we need to do + * the mapping ourselves. + * + * @vendev: Vendor and device for the video device + * @return standard vendor and device expected by the ROM + */ +uint32_t board_map_oprom_vendev(uint32_t vendev); + +#endif |