/*
   * 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

  
  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;
  };

  /*
   * Determines which execution method is used and whether we allow falling back
   * to the other if the requested method is not available.
   */
  enum pci_rom_emul {
  	PCI_ROM_EMULATE		= 0 << 0,
  	PCI_ROM_USE_NATIVE	= 1 << 0,
  	PCI_ROM_ALLOW_FALLBACK	= 1 << 1,
  };

   /**

   * dm_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

   * @exec_method:	flags from enum pci_rom_emul

   */

  int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
  			int exec_method);

  
  /**
   * 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