[u-boot.git] / include / pci_rom.h

/*
 * 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
Commit	Line	Data
6854f87c SG	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