99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2006 Eric Biederman (ebiederm@xmission.com)
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* Copyright (C) 2007 AMD
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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 <stddef.h>
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#include <console/console.h>
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#include <device/pci_ehci.h>
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#include <arch/io.h>
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#include <device/pci.h>
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#include <device/pci_def.h>
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#include <string.h>
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#include "ehci_debug.h"
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#include "ehci.h"
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#if !defined(__PRE_RAM__) && !defined(__SMM__)
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static struct device_operations *ehci_drv_ops;
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static struct device_operations ehci_dbg_ops;
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#endif
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void ehci_debug_hw_enable(void)
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{
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#if defined(__PRE_RAM__) || !CONFIG_USBDEBUG_IN_ROMSTAGE
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pci_devfn_t dbg_dev = pci_ehci_dbg_dev(CONFIG_USBDEBUG_HCD_INDEX);
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pci_ehci_dbg_enable(dbg_dev, CONFIG_EHCI_BAR);
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#endif
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}
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void ehci_debug_select_port(unsigned int port)
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{
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pci_devfn_t dbg_dev = pci_ehci_dbg_dev(CONFIG_USBDEBUG_HCD_INDEX);
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pci_ehci_dbg_set_port(dbg_dev, port);
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}
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#if !defined(__PRE_RAM__) && !defined(__SMM__)
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static void pci_ehci_set_resources(struct device *dev)
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{
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struct resource *res;
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printk(BIOS_DEBUG, "%s EHCI Debug Port hook triggered\n", dev_path(dev));
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usbdebug_disable();
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if (ehci_drv_ops->set_resources)
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ehci_drv_ops->set_resources(dev);
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res = find_resource(dev, EHCI_BAR_INDEX);
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if (!res)
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return;
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usbdebug_re_enable((u32)res->base);
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report_resource_stored(dev, res, "");
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printk(BIOS_DEBUG, "%s EHCI Debug Port relocated\n", dev_path(dev));
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}
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void pci_ehci_read_resources(struct device *dev)
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{
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pci_devfn_t dbg_dev = pci_ehci_dbg_dev(CONFIG_USBDEBUG_HCD_INDEX);
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if (!ehci_drv_ops && pci_match_simple_dev(dev, dbg_dev)) {
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memcpy(&ehci_dbg_ops, dev->ops, sizeof(ehci_dbg_ops));
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ehci_drv_ops = dev->ops;
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ehci_dbg_ops.set_resources = pci_ehci_set_resources;
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dev->ops = &ehci_dbg_ops;
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printk(BIOS_DEBUG, "%s EHCI BAR hook registered\n", dev_path(dev));
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} else {
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printk(BIOS_DEBUG, "More than one caller of %s from %s\n", __func__, dev_path(dev));
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}
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pci_dev_read_resources(dev);
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}
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#endif
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unsigned long pci_ehci_base_regs(pci_devfn_t sdev)
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{
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#ifdef __SIMPLE_DEVICE__
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unsigned long base = pci_read_config32(sdev, EHCI_BAR_INDEX) & ~0x0f;
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#else
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device_t dev = dev_find_slot(PCI_DEV2SEGBUS(sdev), PCI_DEV2DEVFN(sdev));
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unsigned long base = pci_read_config32(dev, EHCI_BAR_INDEX) & ~0x0f;
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#endif
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return base + HC_LENGTH(read32(base));
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}
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