diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/arch/x86/core/pcidirect.c')
-rw-r--r-- | contrib/syslinux-4.02/gpxe/src/arch/x86/core/pcidirect.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/arch/x86/core/pcidirect.c b/contrib/syslinux-4.02/gpxe/src/arch/x86/core/pcidirect.c new file mode 100644 index 0000000..2c61d9c --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/arch/x86/core/pcidirect.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <gpxe/io.h> +#include <gpxe/pci.h> + +/** @file + * + * PCI configuration space access via Type 1 accesses + * + */ + +/** + * Prepare for Type 1 PCI configuration space access + * + * @v pci PCI device + * @v where Location within PCI configuration space + */ +void pcidirect_prepare ( struct pci_device *pci, int where ) { + outl ( ( 0x80000000 | ( pci->bus << 16 ) | ( pci->devfn << 8 ) | + ( where & ~3 ) ), PCIDIRECT_CONFIG_ADDRESS ); +} + +PROVIDE_PCIAPI_INLINE ( direct, pci_max_bus ); +PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_byte ); +PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_word ); +PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_dword ); +PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_byte ); +PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_word ); +PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_dword ); |