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287 lines
6.4 KiB
C
287 lines
6.4 KiB
C
/* $NetBSD: OsdHardware.c,v 1.9 2013/12/27 18:53:25 christos Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* OS Services Layer
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*
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* 6.7: Address Space Access: Port Input/Output
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* 6.8: Address Space Access: Memory and Memory Mapped I/O
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* 6.9: Address Space Access: PCI Configuration Space
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: OsdHardware.c,v 1.9 2013/12/27 18:53:25 christos Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpivar.h>
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#include <dev/acpi/acpi_pci.h>
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#include <machine/acpi_machdep.h>
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/*
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* ACPICA doesn't provide much in the way of letting us know which
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* hardware resources it wants to use. We therefore have to resort
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* to calling machinde-dependent code to do the access for us.
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*/
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/*
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* AcpiOsReadPort:
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*
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* Read a value from an input port.
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*/
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ACPI_STATUS
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AcpiOsReadPort(ACPI_IO_ADDRESS Address, UINT32 *Value, UINT32 Width)
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{
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switch (Width) {
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case 8:
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*Value = acpi_md_OsIn8(Address);
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break;
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case 16:
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*Value = acpi_md_OsIn16(Address);
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break;
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case 32:
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*Value = acpi_md_OsIn32(Address);
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break;
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default:
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return AE_BAD_PARAMETER;
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}
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return AE_OK;
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}
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/*
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* AcpiOsWritePort:
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*
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* Write a value to an output port.
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*/
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ACPI_STATUS
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AcpiOsWritePort(ACPI_IO_ADDRESS Address, UINT32 Value, UINT32 Width)
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{
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switch (Width) {
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case 8:
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acpi_md_OsOut8(Address, Value);
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break;
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case 16:
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acpi_md_OsOut16(Address, Value);
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break;
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case 32:
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acpi_md_OsOut32(Address, Value);
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break;
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default:
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return AE_BAD_PARAMETER;
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}
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return AE_OK;
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}
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/*
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* AcpiOsReadMemory:
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*
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* Read a value from a memory location.
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*/
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ACPI_STATUS
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AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 *Value, UINT32 Width)
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{
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void *LogicalAddress;
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ACPI_STATUS rv = AE_OK;
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LogicalAddress = AcpiOsMapMemory(Address, Width / 8);
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if (LogicalAddress == NULL)
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return AE_NOT_EXIST;
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switch (Width) {
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case 8:
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*Value = *(volatile uint8_t *) LogicalAddress;
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break;
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case 16:
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*Value = *(volatile uint16_t *) LogicalAddress;
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break;
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case 32:
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*Value = *(volatile uint32_t *) LogicalAddress;
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break;
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case 64:
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*Value = *(volatile uint64_t *) LogicalAddress;
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break;
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default:
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rv = AE_BAD_PARAMETER;
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}
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AcpiOsUnmapMemory(LogicalAddress, Width / 8);
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return rv;
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}
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/*
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* AcpiOsWriteMemory:
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*
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* Write a value to a memory location.
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*/
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ACPI_STATUS
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AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 Value, UINT32 Width)
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{
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void *LogicalAddress;
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ACPI_STATUS rv = AE_OK;
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LogicalAddress = AcpiOsMapMemory(Address, Width / 8);
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if (LogicalAddress == NULL)
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return AE_NOT_FOUND;
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switch (Width) {
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case 8:
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*(volatile uint8_t *) LogicalAddress = Value;
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break;
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case 16:
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*(volatile uint16_t *) LogicalAddress = Value;
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break;
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case 32:
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*(volatile uint32_t *) LogicalAddress = Value;
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break;
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case 64:
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*(volatile uint64_t *) LogicalAddress = Value;
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break;
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default:
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rv = AE_BAD_PARAMETER;
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}
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AcpiOsUnmapMemory(LogicalAddress, Width / 8);
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return rv;
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}
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/*
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* AcpiOsReadPciConfiguration:
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*
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* Read a value from a PCI configuration register.
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*/
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ACPI_STATUS
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AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value,
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UINT32 Width)
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{
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pcitag_t tag;
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pcireg_t tmp;
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/* XXX Need to deal with "segment" ("hose" in Alpha terminology). */
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if (PciId->Bus >= 256 || PciId->Device >= 32 || PciId->Function >= 8)
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return AE_BAD_PARAMETER;
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tag = pci_make_tag(acpi_softc->sc_pc, PciId->Bus, PciId->Device,
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PciId->Function);
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tmp = pci_conf_read(acpi_softc->sc_pc, tag, Register & ~3);
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switch (Width) {
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case 8:
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*(uint8_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xff;
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break;
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case 16:
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*(uint16_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xffff;
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break;
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case 32:
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*(uint32_t *) Value = tmp;
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break;
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default:
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return AE_BAD_PARAMETER;
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}
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return AE_OK;
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}
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/*
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* AcpiOsWritePciConfiguration:
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*
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* Write a value to a PCI configuration register.
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*/
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ACPI_STATUS
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AcpiOsWritePciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register,
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ACPI_INTEGER Value, UINT32 Width)
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{
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pcitag_t tag;
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pcireg_t tmp;
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/* XXX Need to deal with "segment" ("hose" in Alpha terminology). */
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tag = pci_make_tag(acpi_softc->sc_pc, PciId->Bus, PciId->Device,
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PciId->Function);
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switch (Width) {
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case 8:
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tmp = pci_conf_read(acpi_softc->sc_pc, tag, Register & ~3);
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tmp &= ~(0xff << ((Register & 3) * 8));
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tmp |= (Value << ((Register & 3) * 8));
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break;
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case 16:
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tmp = pci_conf_read(acpi_softc->sc_pc, tag, Register & ~3);
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tmp &= ~(0xffff << ((Register & 3) * 8));
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tmp |= (Value << ((Register & 3) * 8));
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break;
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case 32:
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tmp = Value;
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break;
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default:
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return AE_BAD_PARAMETER;
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}
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pci_conf_write(acpi_softc->sc_pc, tag, Register & ~3, tmp);
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return AE_OK;
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}
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