From c9f705b12195b7c1ff9814f76c78c76d4b8498b1 Mon Sep 17 00:00:00 2001 From: Patrick Georgi Date: Thu, 24 Jun 2010 14:15:49 +0000 Subject: Incomplete implementation of libpci's (of pciutils) interface. No pciutils code was harmed in its production - this code was written by looking at flashrom's expectations, so there's no license pollution. Signed-off-by: Patrick Georgi Acked-by: Peter Stuge git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5645 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/include/pci/pci.h | 76 +++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 payloads/libpayload/include/pci/pci.h (limited to 'payloads/libpayload/include') diff --git a/payloads/libpayload/include/pci/pci.h b/payloads/libpayload/include/pci/pci.h new file mode 100644 index 0000000000..0a06604e5d --- /dev/null +++ b/payloads/libpayload/include/pci/pci.h @@ -0,0 +1,76 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2010 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _PCI_PCI_H +#define _PCI_PCI_H + +#include + +#define PCI_CLASS_DEVICE REG_CLASS_DEV +#define PCI_SUBSYSTEM_VENDOR_ID REG_SUBSYS_VENDOR_ID +#define PCI_SUBSYSTEM_ID REG_SUBSYS_ID + +struct pci_dev { + u16 domain; + u8 bus, dev, func; + u16 vendor_id, device_id; + struct pci_dev *next; +}; + +/* + * values to match devices against. + * "-1" means "don't care", everything else requires an exact match + */ +struct pci_filter { + int domain, bus, dev, func; + int vendor, device; + struct pci_dev *devices; +}; + +struct pci_access { + struct pci_dev *devices; +}; + +u8 pci_read_byte(struct pci_dev *dev, int pos); +u16 pci_read_word(struct pci_dev *dev, int pos); +u32 pci_read_long(struct pci_dev *dev, int pos); + +int pci_write_byte(struct pci_dev *dev, int pos, u8 data); +int pci_write_word(struct pci_dev *dev, int pos, u16 data); +int pci_write_long(struct pci_dev *dev, int pos, u32 data); + +struct pci_access *pci_alloc(void); +void pci_init(struct pci_access*); +char *pci_filter_parse_slot(struct pci_filter*, const char*); +int pci_filter_match(struct pci_filter*, struct pci_dev*); +void pci_filter_init(struct pci_access*, struct pci_filter*); +void pci_scan_bus(struct pci_access*); +struct pci_dev *pci_get_dev(struct pci_access*, u16, u8, u8, u8); + +#endif -- cgit v1.2.3