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minix/drivers/acpi/osminixxf.c
Tomas Hruby 9560b6dea8 ACPI driver 
- 99% of the code is Intel's ACPICA. The license is compliant with BSD
  and GNU and virtually all systems that use ACPI use this code, For
  instance it is part of the Linux kernel.

- The only minix specific files are

  acpi.c
  osminixxf.c
  platform/acminix.h

  and

  include/minix/acpi.h

- At the moment the driver does not register interrupt hooks which I
  believe is mainly for handling PnP, events like "battery level is
  low" and power management. Should not be difficult to add it if need
  be.

- The interface to the outside world is virtually non-existent except
  a trivial message based service for PCI driver to query which device
  is connected to what IRQ line. This will evolve as more components
  start using this driver. VM, Scheduler and IOMMU are the possible
  users right now.

- because of dependency on a native 64bit (long long, part of c99) it
  is compiled only with a gnu-like compilers which in case of Minix
  includes gcc llvm-gcc and clang
2010-09-02 15:44:04 +00:00

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/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2008, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "acpi.h"
#include "accommon.h"
#include "amlcode.h"
#include "acparser.h"
#include "acdebug.h"
#include <minix/driver.h>
#include <machine/pci_intel.h>
extern struct machine machine;
PRIVATE unsigned pci_inb(u16_t port) {
u32_t value;
int s;
if ((s=sys_inb(port, &value)) !=OK)
printf("ACPI: warning, sys_inb failed: %d\n", s);
return value;
}
PRIVATE unsigned pci_inw(u16_t port) {
u32_t value;
int s;
if ((s=sys_inw(port, &value)) !=OK)
printf("ACPI: warning, sys_inw failed: %d\n", s);
return value;
}
PRIVATE unsigned pci_inl(u16_t port) {
u32_t value;
int s;
if ((s=sys_inl(port, &value)) !=OK)
printf("ACPI: warning, sys_inl failed: %d\n", s);
return value;
}
PRIVATE void pci_outb(u16_t port, u8_t value) {
int s;
if ((s=sys_outb(port, value)) !=OK)
printf("ACPI: warning, sys_outb failed: %d\n", s);
}
PRIVATE void pci_outw(u16_t port, u16_t value) {
int s;
if ((s=sys_outw(port, value)) !=OK)
printf("ACPI: warning, sys_outw failed: %d\n", s);
}
PRIVATE void pci_outl(u16_t port, u32_t value) {
int s;
if ((s=sys_outl(port, value)) !=OK)
printf("ACPI: warning, sys_outl failed: %d\n", s);
}
/******************************************************************************
*
* FUNCTION: AcpiOsInitialize, AcpiOsTerminate
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Init and terminate. Nothing to do.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsInitialize (void)
{
return AE_OK;
}
ACPI_STATUS
AcpiOsTerminate (void)
{
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsPredefinedOverride
*
* PARAMETERS: InitVal - Initial value of the predefined object
* NewVal - The new value for the object
*
* RETURN: Status, pointer to value. Null pointer returned if not
* overriding.
*
* DESCRIPTION: Allow the OS to override predefined names
*
*****************************************************************************/
ACPI_STATUS
AcpiOsPredefinedOverride (
const ACPI_PREDEFINED_NAMES *InitVal,
ACPI_STRING *NewVal)
{
*NewVal = NULL;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsTableOverride
*
* PARAMETERS: ExistingTable - Header of current table (probably firmware)
* NewTable - Where an entire new table is returned.
*
* RETURN: Status, pointer to new table. Null pointer returned if no
* table is available to override
*
* DESCRIPTION: Return a different version of a table if one is available
*
*****************************************************************************/
ACPI_STATUS
AcpiOsTableOverride (
ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
*NewTable = NULL;
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadable
*
* PARAMETERS: Pointer - Area to be verified
* Length - Size of area
*
* RETURN: TRUE if readable for entire length
*
* DESCRIPTION: Verify that a pointer is valid for reading
*
*****************************************************************************/
BOOLEAN
AcpiOsReadable (
void *Pointer,
ACPI_SIZE Length)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return (TRUE);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritable
*
* PARAMETERS: Pointer - Area to be verified
* Length - Size of area
*
* RETURN: TRUE if writable for entire length
*
* DESCRIPTION: Verify that a pointer is valid for writing
*
*****************************************************************************/
BOOLEAN
AcpiOsWritable (
void *Pointer,
ACPI_SIZE Length)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return (TRUE);
}
/******************************************************************************
*
* FUNCTION: AcpiOsRedirectOutput
*
* PARAMETERS: Destination - An open file handle/pointer
*
* RETURN: None
*
* DESCRIPTION: Causes redirect of AcpiOsPrintf and AcpiOsVprintf
*
*****************************************************************************/
void
AcpiOsRedirectOutput (
void *Destination)
{
panic("NOTIMPLEMENTED %s\n", __func__);
}
/******************************************************************************
*
* FUNCTION: AcpiOsPrintf
*
* PARAMETERS: fmt, ... Standard printf format
*
* RETURN: None
*
* DESCRIPTION: Formatted output
*
*****************************************************************************/
void ACPI_INTERNAL_VAR_XFACE
AcpiOsPrintf (
const char *Fmt,
...)
{
va_list Args;
va_start (Args, Fmt);
#ifdef ACPI_BF_DEBUG
AcpiOsVprintf (Fmt, Args);
#endif
va_end (Args);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsVprintf
*
* PARAMETERS: fmt Standard printf format
* args Argument list
*
* RETURN: None
*
* DESCRIPTION: Formatted output with argument list pointer
*
*****************************************************************************/
void
AcpiOsVprintf (
const char *Fmt,
va_list Args)
{
INT32 Count = 0;
UINT8 Flags;
vprintf (Fmt, Args);
printf("\n");
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetLine
*
* PARAMETERS: fmt Standard printf format
* args Argument list
*
* RETURN: Actual bytes read
*
* DESCRIPTION: Formatted input with argument list pointer
*
*****************************************************************************/
UINT32
AcpiOsGetLine (
char *Buffer)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return 0;
}
/******************************************************************************
*
* FUNCTION: AcpiOsMapMemory
*
* PARAMETERS: where Physical address of memory to be mapped
* length How much memory to map
*
* RETURN: Pointer to mapped memory. Null on error.
*
* DESCRIPTION: Map physical memory into caller's address space
*
*****************************************************************************/
void *
AcpiOsMapMemory (
ACPI_PHYSICAL_ADDRESS where, /* not page aligned */
ACPI_SIZE length) /* in bytes, not page-aligned */
{
ACPI_PHYSICAL_ADDRESS addr;
void * vir;
unsigned sdiff;
addr = where & ~0xfff; /* align to 4k */
sdiff = where - addr;
vir = vm_map_phys(SELF, (void *) addr, length + sdiff);
return (void *) ((char *)vir + sdiff);
}
/******************************************************************************
*
* FUNCTION: AcpiOsUnmapMemory
*
* PARAMETERS: where Logical address of memory to be unmapped
* length How much memory to unmap
*
* RETURN: None.
*
* DESCRIPTION: Delete a previously created mapping. Where and Length must
* correspond to a previous mapping exactly.
*
*****************************************************************************/
void
AcpiOsUnmapMemory (
void *where,
ACPI_SIZE length)
{
}
/******************************************************************************
*
* FUNCTION: AcpiOsAllocate
*
* PARAMETERS: Size Amount to allocate, in bytes
*
* RETURN: Pointer to the new allocation. Null on error.
*
* DESCRIPTION: Allocate memory. Algorithm is dependent on the OS.
*
*****************************************************************************/
void *
AcpiOsAllocate (
ACPI_SIZE size)
{
void *Mem;
Mem = (void *) malloc ((size_t) size);
if (Mem == NULL)
printf("AcpiOsAllocate out of memory\n");
return Mem;
}
/******************************************************************************
*
* FUNCTION: AcpiOsFree
*
* PARAMETERS: mem Pointer to previously allocated memory
*
* RETURN: None.
*
* DESCRIPTION: Free memory allocated via AcpiOsAllocate
*
*****************************************************************************/
void
AcpiOsFree (
void *mem)
{
free(mem);
}
/******************************************************************************
*
* FUNCTION: AcpiOsCreateSemaphore
*
* PARAMETERS: InitialUnits - Units to be assigned to the new semaphore
* OutHandle - Where a handle will be returned
*
* RETURN: Status
*
* DESCRIPTION: Create an OS semaphore
*
*****************************************************************************/
ACPI_STATUS
AcpiOsCreateSemaphore (
UINT32 MaxUnits,
UINT32 InitialUnits,
ACPI_HANDLE *OutHandle)
{
*OutHandle = NULL;
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsDeleteSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
*
* RETURN: Status
*
* DESCRIPTION: Delete an OS semaphore
*
*****************************************************************************/
ACPI_STATUS
AcpiOsDeleteSemaphore (
ACPI_HANDLE Handle)
{
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsWaitSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
* Units - How many units to wait for
* Timeout - How long to wait
*
* RETURN: Status
*
* DESCRIPTION: Wait for units
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWaitSemaphore (
ACPI_HANDLE Handle,
UINT32 Units,
UINT16 Timeout)
{
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsSignalSemaphore
*
* PARAMETERS: Handle - Handle returned by AcpiOsCreateSemaphore
* Units - Number of units to send
*
* RETURN: Status
*
* DESCRIPTION: Send units
*
*****************************************************************************/
ACPI_STATUS
AcpiOsSignalSemaphore (
ACPI_HANDLE Handle,
UINT32 Units)
{
return AE_OK;
}
ACPI_STATUS
AcpiOsCreateLock (
ACPI_SPINLOCK *OutHandle)
{
*OutHandle = NULL;
return AE_OK;
}
void
AcpiOsDeleteLock (
ACPI_SPINLOCK Handle)
{
}
ACPI_CPU_FLAGS
AcpiOsAcquireLock (
ACPI_HANDLE Handle)
{
return (0);
}
void
AcpiOsReleaseLock (
ACPI_SPINLOCK Handle,
ACPI_CPU_FLAGS Flags)
{
}
/******************************************************************************
*
* FUNCTION: AcpiOsInstallInterruptHandler
*
* PARAMETERS: InterruptNumber Level handler should respond to.
* Isr Address of the ACPI interrupt handler
* ExceptPtr Where status is returned
*
* RETURN: Handle to the newly installed handler.
*
* DESCRIPTION: Install an interrupt handler. Used to install the ACPI
* OS-independent handler.
*
*****************************************************************************/
UINT32
AcpiOsInstallInterruptHandler (
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine,
void *Context)
{
printf("AcpiOsInstallInterruptHandler NOT SUPPORTED\n");
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsRemoveInterruptHandler
*
* PARAMETERS: Handle Returned when handler was installed
*
* RETURN: Status
*
* DESCRIPTION: Uninstalls an interrupt handler.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsRemoveInterruptHandler (
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsExecute
*
* PARAMETERS: Type - Type of execution
* Function - Address of the function to execute
* Context - Passed as a parameter to the function
*
* RETURN: Status.
*
* DESCRIPTION: Execute a new thread
*
*****************************************************************************/
ACPI_STATUS
AcpiOsExecute (
ACPI_EXECUTE_TYPE Type,
ACPI_OSD_EXEC_CALLBACK Function,
void *Context)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsBreakpoint
*
* PARAMETERS: Msg Message to print
*
* RETURN: Status
*
* DESCRIPTION: Print a message and break to the debugger.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsBreakpoint (
char *Msg)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsStall
*
* PARAMETERS: microseconds To sleep
*
* RETURN: Blocks until sleep is completed.
*
* DESCRIPTION: Sleep at microsecond granularity
*
*****************************************************************************/
void
AcpiOsStall (
UINT32 microseconds)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsSleep
*
* PARAMETERS: milliseconds To sleep
*
* RETURN: Blocks until sleep is completed.
*
* DESCRIPTION: Sleep at millisecond granularity
*
*****************************************************************************/
void
AcpiOsSleep (
ACPI_INTEGER milliseconds)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return;
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetTimer
*
* PARAMETERS: None
*
* RETURN: Current time in 100 nanosecond units
*
* DESCRIPTION: Get the current system time
*
*****************************************************************************/
UINT64
AcpiOsGetTimer (void)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return 0;
}
/******************************************************************************
*
* FUNCTION: AcpiOsValidateInterface
*
* PARAMETERS: Interface - Requested interface to be validated
*
* RETURN: AE_OK if interface is supported, AE_SUPPORT otherwise
*
* DESCRIPTION: Match an interface string to the interfaces supported by the
* host. Strings originate from an AML call to the _OSI method.
*
*****************************************************************************/
ACPI_STATUS
AcpiOsValidateInterface (
char *Interface)
{
return (AE_SUPPORT);
}
/* TEMPORARY STUB FUNCTION */
void
AcpiOsDerivePciId(
ACPI_HANDLE rhandle,
ACPI_HANDLE chandle,
ACPI_PCI_ID **PciId)
{
/* we do nothing here, we keep the PciId unchanged */
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadPort
*
* PARAMETERS: Address Address of I/O port/register to read
* Value Where value is placed
* Width Number of bits
*
* RETURN: Value read from port
*
* DESCRIPTION: Read data from an I/O port or register
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadPort (
ACPI_IO_ADDRESS Address,
UINT32 *Value,
UINT32 Width)
{
*Value = 0;
switch (Width) {
case 8:
sys_inb(Address, (unsigned long *)Value);
break;
case 16:
sys_inw(Address, (unsigned long *)Value);
break;
case 32:
sys_inl(Address, (unsigned long *)Value);
break;
}
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritePort
*
* PARAMETERS: Address Address of I/O port/register to write
* Value Value to write
* Width Number of bits
*
* RETURN: None
*
* DESCRIPTION: Write data to an I/O port or register
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWritePort (
ACPI_IO_ADDRESS Address,
UINT32 Value,
UINT32 Width)
{
switch (Width) {
case 8:
sys_outb(Address, Value);
break;
case 16:
sys_outw(Address, Value);
break;
case 32:
sys_outl(Address, Value);
break;
}
return AE_OK;
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadMemory
*
* PARAMETERS: Address Physical Memory Address to read
* Value Where value is placed
* Width Number of bits
*
* RETURN: Value read from physical memory address
*
* DESCRIPTION: Read data from a physical memory address
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadMemory (
ACPI_PHYSICAL_ADDRESS Address,
UINT32 *Value,
UINT32 Width)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsWriteMemory
*
* PARAMETERS: Address Physical Memory Address to write
* Value Value to write
* Width Number of bits
*
* RETURN: None
*
* DESCRIPTION: Write data to a physical memory address
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWriteMemory (
ACPI_PHYSICAL_ADDRESS Address,
UINT32 Value,
UINT32 Width)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return (AE_OK);
}
ACPI_THREAD_ID
AcpiOsGetThreadId(void)
{
return (ACPI_THREAD_ID) 1;
}
/******************************************************************************
*
* FUNCTION: AcpiOsSignal
*
* PARAMETERS: Function ACPI CA signal function code
* Info Pointer to function-dependent structure
*
* RETURN: Status
*
* DESCRIPTION: Miscellaneous functions
*
*****************************************************************************/
ACPI_STATUS
AcpiOsSignal (
UINT32 Function,
void *Info)
{
panic("NOTIMPLEMENTED %s\n", __func__);
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetRootPointer
*
* PARAMETERS: None
*
* RETURN: RSDP physical address
*
* DESCRIPTION: Gets the root pointer (RSDP)
*
*****************************************************************************/
PUBLIC ACPI_PHYSICAL_ADDRESS AcpiOsGetRootPointer (
void)
{
return machine.acpi_rsdp;
}
/******************************************************************************
*
* FUNCTION: AcpiOsReadPciConfiguration
*
* PARAMETERS: PciId Seg/Bus/Dev
* Register Device Register
* Value Buffer where value is placed
* Width Number of bits
*
* RETURN: Status
*
* DESCRIPTION: Read data from PCI configuration space
*
*****************************************************************************/
ACPI_STATUS
AcpiOsReadPciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
void *Value,
UINT32 Width)
{
int err;
switch (Width) {
case 8:
*(u8_t *)Value = PCII_RREG8_(PciId->Bus, PciId->Device,
PciId->Function, Register);
break;
case 16:
*(u16_t *)Value = PCII_RREG16_(PciId->Bus, PciId->Device,
PciId->Function, Register);
break;
case 32:
*(u32_t *)Value = PCII_RREG32_(PciId->Bus, PciId->Device,
PciId->Function, Register);
break;
default:
panic("NOT IMPLEMENTED\n");
}
if (OK != (err = sys_outl(PCII_CONFADD, PCII_UNSEL)))
printf("ACPI: warning, sys_outl failed: %d\n", err);
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: AcpiOsWritePciConfiguration
*
* PARAMETERS: PciId Seg/Bus/Dev
* Register Device Register
* Value Value to be written
* Width Number of bits
*
* RETURN: Status.
*
* DESCRIPTION: Write data to PCI configuration space
*
*****************************************************************************/
ACPI_STATUS
AcpiOsWritePciConfiguration (
ACPI_PCI_ID *PciId,
UINT32 Register,
ACPI_INTEGER Value,
UINT32 Width)
{
int err;
switch (Width) {
case 8:
PCII_WREG8_(PciId->Bus, PciId->Device,
PciId->Function, Register, Value);
break;
case 16:
PCII_WREG16_(PciId->Bus, PciId->Device,
PciId->Function, Register, Value);
break;
case 32:
PCII_WREG32_(PciId->Bus, PciId->Device,
PciId->Function, Register, Value);
break;
default:
panic("NOT IMPLEMENTED\n");
}
if (OK != (err = sys_outl(PCII_CONFADD, PCII_UNSEL)))
printf("ACPI: warning, sys_outl failed: %d\n", err);
return AE_OK;
}
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