149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/*-
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* 6.7 : Hardware Abstraction
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*/
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#include "acpi.h"
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/pci_cfgreg.h>
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/*
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* ACPICA's rather gung-ho approach to hardware resource ownership is a little
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* troublesome insofar as there is no easy way for us to know in advance
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* exactly which I/O resources it's going to want to use.
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*
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* In order to deal with this, we ignore resource ownership entirely, and simply
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* use the native I/O space accessor functionality. This is Evil, but it works.
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*
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* XXX use an intermediate #define for the tag/handle
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*/
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#define ACPI_BUS_SPACE_IO I386_BUS_SPACE_IO
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#define ACPI_BUS_HANDLE 0
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UINT8
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AcpiOsIn8(ACPI_IO_ADDRESS InPort)
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{
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return(bus_space_read_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort));
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}
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UINT16
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AcpiOsIn16(ACPI_IO_ADDRESS InPort)
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{
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return(bus_space_read_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort));
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}
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UINT32
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AcpiOsIn32(ACPI_IO_ADDRESS InPort)
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{
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return(bus_space_read_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort));
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}
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void
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AcpiOsOut8(ACPI_IO_ADDRESS OutPort, UINT8 Value)
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{
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bus_space_write_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
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}
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void
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AcpiOsOut16(ACPI_IO_ADDRESS OutPort, UINT16 Value)
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{
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bus_space_write_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
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}
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void
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AcpiOsOut32(ACPI_IO_ADDRESS OutPort, UINT32 Value)
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{
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bus_space_write_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
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}
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ACPI_STATUS
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AcpiOsReadPciCfgByte (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT8 *Value)
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{
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u_int32_t result;
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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result = pci_cfgregread(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, 1);
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*Value = (UINT8)result;
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return(AE_OK);
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}
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ACPI_STATUS
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AcpiOsReadPciCfgWord (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT16 *Value)
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{
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u_int32_t result;
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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result = pci_cfgregread(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, 2);
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*Value = (UINT16)result;
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return(AE_OK);
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}
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ACPI_STATUS
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AcpiOsReadPciCfgDword (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT32 *Value)
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{
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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*Value = pci_cfgregread(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, 4);
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return(AE_OK);
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}
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ACPI_STATUS
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AcpiOsWritePciCfgByte (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT8 Value)
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{
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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pci_cfgregwrite(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, (u_int32_t)Value, 1);
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return(AE_OK);
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}
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ACPI_STATUS
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AcpiOsWritePciCfgWord (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT16 Value)
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{
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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pci_cfgregwrite(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, (u_int32_t)Value, 2);
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return(AE_OK);
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}
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ACPI_STATUS
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AcpiOsWritePciCfgDword (UINT32 Bus, UINT32 DeviceFunction, UINT32 Register, UINT32 Value)
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{
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if (!pci_cfgregopen())
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return(AE_NOT_EXIST);
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pci_cfgregwrite(Bus, DeviceFunction >> 16, DeviceFunction & 0xff, Register, (u_int32_t)Value, 4);
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return(AE_OK);
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}
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