diff options
Diffstat (limited to 'sys/contrib/dev/acpica/rsxface.c')
| -rw-r--r-- | sys/contrib/dev/acpica/rsxface.c | 162 |
1 files changed, 160 insertions, 2 deletions
diff --git a/sys/contrib/dev/acpica/rsxface.c b/sys/contrib/dev/acpica/rsxface.c index 11e6d51..5ec7c337 100644 --- a/sys/contrib/dev/acpica/rsxface.c +++ b/sys/contrib/dev/acpica/rsxface.c @@ -1,7 +1,7 @@ /******************************************************************************* * * Module Name: rsxface - Public interfaces to the resource manager - * $Revision: 19 $ + * $Revision: 24 $ * ******************************************************************************/ @@ -9,7 +9,7 @@ * * 1. Copyright Notice * - * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. + * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp. * All rights reserved. * * 2. License @@ -293,6 +293,96 @@ AcpiGetPossibleResources ( /******************************************************************************* * + * FUNCTION: AcpiWalkResources + * + * PARAMETERS: DeviceHandle - a handle to the device object for the + * device we are querying + * Path - method name of the resources we want + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * UserFunction - called for each resource + * Context - passed to UserFunction + * + * RETURN: Status + * + * DESCRIPTION: Retrieves the current or possible resource list for the + * specified device. The UserFunction is called once for + * each resource in the list. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiWalkResources ( + ACPI_HANDLE DeviceHandle, + char *Path, + ACPI_WALK_RESOURCE_CALLBACK UserFunction, + void *Context) +{ + ACPI_STATUS Status; + ACPI_BUFFER Buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + ACPI_RESOURCE *Resource; + + + ACPI_FUNCTION_TRACE ("AcpiWalkResources"); + + + if (!DeviceHandle || + (ACPI_STRNCMP (Path, METHOD_NAME__CRS, sizeof (METHOD_NAME__CRS)) && + ACPI_STRNCMP (Path, METHOD_NAME__PRS, sizeof (METHOD_NAME__PRS)))) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiRsGetMethodData (DeviceHandle, Path, &Buffer); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Resource = (ACPI_RESOURCE *) Buffer.Pointer; + for (;;) + { + if (!Resource || Resource->Id == ACPI_RSTYPE_END_TAG) + { + break; + } + + Status = UserFunction (Resource, Context); + + switch (Status) + { + case AE_OK: + case AE_CTRL_DEPTH: + + /* Just keep going */ + Status = AE_OK; + break; + + case AE_CTRL_TERMINATE: + + /* Exit now, with OK stats */ + + Status = AE_OK; + goto Cleanup; + + default: + + /* All others are valid exceptions */ + + goto Cleanup; + } + + Resource = ACPI_NEXT_RESOURCE (Resource); + } + +Cleanup: + + AcpiOsFree (Buffer.Pointer); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * * FUNCTION: AcpiSetCurrentResources * * PARAMETERS: DeviceHandle - a handle to the device object for the @@ -334,3 +424,71 @@ AcpiSetCurrentResources ( Status = AcpiRsSetSrsMethodData (DeviceHandle, InBuffer); return_ACPI_STATUS (Status); } + + + +#define COPY_FIELD(Out, In, Field) Out->Field = In->Field +#define COPY_ADDRESS(Out, In) \ + COPY_FIELD(Out, In, ResourceType); \ + COPY_FIELD(Out, In, ProducerConsumer); \ + COPY_FIELD(Out, In, Decode); \ + COPY_FIELD(Out, In, MinAddressFixed); \ + COPY_FIELD(Out, In, MaxAddressFixed); \ + COPY_FIELD(Out, In, Attribute); \ + COPY_FIELD(Out, In, Granularity); \ + COPY_FIELD(Out, In, MinAddressRange); \ + COPY_FIELD(Out, In, MaxAddressRange); \ + COPY_FIELD(Out, In, AddressTranslationOffset); \ + COPY_FIELD(Out, In, AddressLength); \ + COPY_FIELD(Out, In, ResourceSource); + +/****************************************************************************** + * + * FUNCTION: AcpiResourceToAddress64 + * + * PARAMETERS: resource - Pointer to a resource + * out - Pointer to the users's return + * buffer (a struct + * acpi_resource_address64) + * + * RETURN: Status + * + * DESCRIPTION: If the resource is an address16, address32, or address64, + * copy it to the address64 return buffer. This saves the + * caller from having to duplicate code for different-sized + * addresses. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiResourceToAddress64 ( + ACPI_RESOURCE *Resource, + ACPI_RESOURCE_ADDRESS64 *Out) +{ + ACPI_RESOURCE_ADDRESS16 *Address16; + ACPI_RESOURCE_ADDRESS32 *Address32; + ACPI_RESOURCE_ADDRESS64 *Address64; + + + switch (Resource->Id) { + case ACPI_RSTYPE_ADDRESS16: + Address16 = (ACPI_RESOURCE_ADDRESS16 *) &Resource->Data; + COPY_ADDRESS(Out, Address16); + break; + + case ACPI_RSTYPE_ADDRESS32: + Address32 = (ACPI_RESOURCE_ADDRESS32 *) &Resource->Data; + COPY_ADDRESS(Out, Address32); + break; + + case ACPI_RSTYPE_ADDRESS64: + Address64 = (ACPI_RESOURCE_ADDRESS64 *) &Resource->Data; + COPY_ADDRESS(Out, Address64); + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} |
