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/*-
* Copyright (c) 2000, 2001 Michael Smith
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* 6.7 : Hardware Abstraction
*/
#include "acpi.h"
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/pci_cfgreg.h>
/*
* ACPICA's rather gung-ho approach to hardware resource ownership is a little
* troublesome insofar as there is no easy way for us to know in advance
* exactly which I/O resources it's going to want to use.
*
* In order to deal with this, we ignore resource ownership entirely, and simply
* use the native I/O space accessor functionality. This is Evil, but it works.
*
* XXX use an intermediate #define for the tag/handle
*/
#define ACPI_BUS_SPACE_IO I386_BUS_SPACE_IO
#define ACPI_BUS_HANDLE 0
ACPI_STATUS
AcpiOsReadPort (
ACPI_IO_ADDRESS InPort,
void *Value,
UINT32 Width)
{
switch (Width) {
case 8:
*(u_int8_t *)Value = bus_space_read_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort);
break;
case 16:
*(u_int16_t *)Value = bus_space_read_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort);
break;
case 32:
*(u_int32_t *)Value = bus_space_read_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort);
break;
default:
/* debug trap goes here */
}
return(AE_OK);
}
ACPI_STATUS
AcpiOsWritePort (
ACPI_IO_ADDRESS OutPort,
NATIVE_UINT Value,
UINT32 Width)
{
switch (Width) {
case 8:
bus_space_write_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
break;
case 16:
bus_space_write_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
break;
case 32:
bus_space_write_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value);
break;
default:
/* debug trap goes here */
}
return(AE_OK);
}
ACPI_STATUS
AcpiOsReadPciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
void *Value,
UINT32 Width)
{
u_int32_t byte_width = Width / 8;
u_int32_t val;
if (!pci_cfgregopen())
return(AE_NOT_EXIST);
val = pci_cfgregread(PciId->Bus, PciId->Device, PciId->Function, Register, byte_width);
switch (Width) {
case 8:
*(u_int8_t *)Value = val & 0xff;
break;
case 16:
*(u_int16_t *)Value = val & 0xffff;
break;
case 32:
*(u_int32_t *)Value = val;
break;
default:
/* debug trap goes here */
}
return(AE_OK);
}
ACPI_STATUS
AcpiOsWritePciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
NATIVE_UINT Value,
UINT32 Width)
{
u_int32_t byte_width = Width / 8;
if (!pci_cfgregopen())
return(AE_NOT_EXIST);
pci_cfgregwrite(PciId->Bus, PciId->Device, PciId->Function, Register, Value, byte_width);
return(AE_OK);
}
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