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fb387dfb92
All the additional work that needs to be done in EHCI BAR relocation is independent of the hardware platform and was functionally identical in all the copies removed. When USBDEBUG is not selected, PCI EHCI controllers use standard pci_dev_read_resources() call. With USBDEBUG selected, PCI EHCI controller's device_operations .read_resources is replaced with pci_ehci_read_resources() call, which in turn will replace the device_operations .set_resources call. The replacement for .set_resources reconfigures usbdebug driver side, and calls the original .set_resources to configure hardware side. Change-Id: I8e136a5da4efedf60b6dd7068c0488153efaaf8e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3412 Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007 AMD
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* Written by Yinghai Lu <yinghai.lu@amd.com> for 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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#ifndef USBDEBUG_H
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#define USBDEBUG_H
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#define EHCI_BAR_INDEX 0x10
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#ifndef __PRE_RAM__
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#if !CONFIG_USBDEBUG
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#define pci_ehci_read_resources pci_dev_read_resources
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#else
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/* Relocation of EHCI Debug Port BAR
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*
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* PCI EHCI controller with Debug Port capability shall replace
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* pci_dev_read_resources() with pci_ehci_read_resources() in its
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* declaration of device_operations for .read_resources.
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* This installs a hook to reconfigure usbdebug when resource allocator
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* assigns a new BAR for the device.
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*/
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struct device;
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void pci_ehci_read_resources(struct device *dev);
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#endif
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#endif
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struct ehci_debug_info {
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void *ehci_caps;
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void *ehci_regs;
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void *ehci_debug;
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u32 devnum;
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u32 endpoint_out;
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u32 endpoint_in;
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char buf[8];
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u8 bufidx;
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};
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void enable_usbdebug(unsigned int port);
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int dbgp_bulk_write_x(struct ehci_debug_info *dbg_info, const char *bytes, int size);
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int dbgp_bulk_read_x(struct ehci_debug_info *dbg_info, void *data, int size);
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void set_ehci_base(unsigned ehci_base);
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void set_ehci_debug(unsigned ehci_debug);
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unsigned get_ehci_debug(void);
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void set_debug_port(unsigned port);
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int early_usbdebug_init(void);
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void usbdebug_tx_byte(struct ehci_debug_info *info, unsigned char data);
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void usbdebug_tx_flush(struct ehci_debug_info *info);
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int usbdebug_init(unsigned ehci_bar, unsigned offset, struct ehci_debug_info *info);
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#endif
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