dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 08:42:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

x86: video: Allow video ROM execution to fall back to the other method

Browse Source 
If the BIOS emulator is not available, allow use of native execution if
available, and vice versa. This can be controlled by the caller.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2015-01-27 22:13:34 -07:00
parent 2d934e5703
commit bc17d8f4ac
4 changed files with 43 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
include/pci_rom.h
View File

@@ -33,14 +33,25 @@ struct pci_rom_data {
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,
};
/**
* 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
* @exec_method: flags from enum pci_rom_emul
*/
int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), bool emulate);
int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void),
int exec_method);
/**
* board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects