43b29cf891
horribly broken and thus never used by any platform. This needs to get straightened out so current chipsets drivers can use the full feature set. Create wrapper functions similar to the io pci config space ones. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3981 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2004 Linux Networx
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* (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
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* Copyright (C) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <console/console.h>
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#include <arch/pciconf.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <device/pci_ops.h>
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static struct bus *get_pbus(device_t dev)
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{
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struct bus *pbus = dev->bus;
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while(pbus && pbus->dev && !ops_pci_bus(pbus)) {
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if (pbus == pbus->dev->bus) {
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printk_alert("%s in endless loop looking for a parent "
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"bus with ops_pci_bus for %s, breaking out\n",
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__func__, dev_path(dev));
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break;
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}
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pbus = pbus->dev->bus;
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}
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if (!pbus || !pbus->dev || !pbus->dev->ops || !pbus->dev->ops->ops_pci_bus) {
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printk_alert("%s Cannot find pci bus operations", dev_path(dev));
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die("");
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for(;;);
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}
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return pbus;
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}
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uint8_t pci_read_config8(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return ops_pci_bus(pbus)->read8(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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uint16_t pci_read_config16(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return ops_pci_bus(pbus)->read16(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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uint32_t pci_read_config32(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return ops_pci_bus(pbus)->read32(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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void pci_write_config8(device_t dev, unsigned where, uint8_t val)
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{
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struct bus *pbus = get_pbus(dev);
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ops_pci_bus(pbus)->write8(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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void pci_write_config16(device_t dev, unsigned where, uint16_t val)
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{
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struct bus *pbus = get_pbus(dev);
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ops_pci_bus(pbus)->write16(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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void pci_write_config32(device_t dev, unsigned where, uint32_t val)
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{
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struct bus *pbus = get_pbus(dev);
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ops_pci_bus(pbus)->write32(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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#if MMCONF_SUPPORT
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uint8_t pci_mmio_read_config8(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return pci_ops_mmconf.read8(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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uint16_t pci_mmio_read_config16(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return pci_ops_mmconf.read16(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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uint32_t pci_mmio_read_config32(device_t dev, unsigned where)
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{
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struct bus *pbus = get_pbus(dev);
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return pci_ops_mmconf.read32(pbus, dev->bus->secondary, dev->path.pci.devfn, where);
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}
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void pci_mmio_write_config8(device_t dev, unsigned where, uint8_t val)
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{
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struct bus *pbus = get_pbus(dev);
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pci_ops_mmconf.write8(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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void pci_mmio_write_config16(device_t dev, unsigned where, uint16_t val)
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{
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struct bus *pbus = get_pbus(dev);
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pci_ops_mmconf.write16(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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void pci_mmio_write_config32(device_t dev, unsigned where, uint32_t val)
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{
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struct bus *pbus = get_pbus(dev);
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pci_ops_mmconf.write32(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val);
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}
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#endif
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