| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2004 Linux Networx |
| * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx) |
| * Copyright (C) 2009 coresystems GmbH |
| * |
| * 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; version 2 of the License. |
| * |
| * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <console/console.h> |
| #include <arch/pciconf.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| |
| static struct bus *get_pbus(device_t dev) |
| { |
| struct bus *pbus; |
| |
| if (!dev) |
| die("get_pbus: dev is NULL!\n"); |
| |
| pbus = dev->bus; |
| |
| while(pbus && pbus->dev && !ops_pci_bus(pbus)) { |
| if (pbus == pbus->dev->bus) { |
| printk_alert("%s in endless loop looking for a parent " |
| "bus with ops_pci_bus for %s, breaking out\n", |
| __func__, dev_path(dev)); |
| break; |
| } |
| pbus = pbus->dev->bus; |
| } |
| if (!pbus || !pbus->dev || !pbus->dev->ops || !pbus->dev->ops->ops_pci_bus) { |
| printk_emerg("%s Cannot find pci bus operations\n", dev_path(dev)); |
| die(""); |
| } |
| return pbus; |
| } |
| |
| uint8_t pci_read_config8(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return ops_pci_bus(pbus)->read8(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| uint16_t pci_read_config16(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return ops_pci_bus(pbus)->read16(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| uint32_t pci_read_config32(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return ops_pci_bus(pbus)->read32(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| void pci_write_config8(device_t dev, unsigned where, uint8_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| ops_pci_bus(pbus)->write8(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| |
| void pci_write_config16(device_t dev, unsigned where, uint16_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| ops_pci_bus(pbus)->write16(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| |
| void pci_write_config32(device_t dev, unsigned where, uint32_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| ops_pci_bus(pbus)->write32(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| |
| #if MMCONF_SUPPORT |
| uint8_t pci_mmio_read_config8(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return pci_ops_mmconf.read8(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| uint16_t pci_mmio_read_config16(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return pci_ops_mmconf.read16(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| uint32_t pci_mmio_read_config32(device_t dev, unsigned where) |
| { |
| struct bus *pbus = get_pbus(dev); |
| return pci_ops_mmconf.read32(pbus, dev->bus->secondary, dev->path.pci.devfn, where); |
| } |
| |
| void pci_mmio_write_config8(device_t dev, unsigned where, uint8_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| pci_ops_mmconf.write8(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| |
| void pci_mmio_write_config16(device_t dev, unsigned where, uint16_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| pci_ops_mmconf.write16(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| |
| void pci_mmio_write_config32(device_t dev, unsigned where, uint32_t val) |
| { |
| struct bus *pbus = get_pbus(dev); |
| pci_ops_mmconf.write32(pbus, dev->bus->secondary, dev->path.pci.devfn, where, val); |
| } |
| #endif |