1 /* 2 * Copyright (C) 2006 Michael Brown <mbrown (at) fensystems.co.uk>. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of the 7 * License, or any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 FILE_LICENCE ( GPL2_OR_LATER ); 20 21 #include <gpxe/io.h> 22 #include <gpxe/pci.h> 23 24 /** @file 25 * 26 * PCI configuration space access via Type 1 accesses 27 * 28 */ 29 30 /** 31 * Prepare for Type 1 PCI configuration space access 32 * 33 * @v pci PCI device 34 * @v where Location within PCI configuration space 35 */ 36 void pcidirect_prepare ( struct pci_device *pci, int where ) { 37 outl ( ( 0x80000000 | ( pci->bus << 16 ) | ( pci->devfn << 8 ) | 38 ( where & ~3 ) ), PCIDIRECT_CONFIG_ADDRESS ); 39 } 40 41 PROVIDE_PCIAPI_INLINE ( direct, pci_max_bus ); 42 PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_byte ); 43 PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_word ); 44 PROVIDE_PCIAPI_INLINE ( direct, pci_read_config_dword ); 45 PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_byte ); 46 PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_word ); 47 PROVIDE_PCIAPI_INLINE ( direct, pci_write_config_dword ); 48
