diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/resources/rslist.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/resources/rslist.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/resources/rslist.c b/sys/contrib/dev/acpica/components/resources/rslist.c new file mode 100644 index 0000000..493d435 --- /dev/null +++ b/sys/contrib/dev/acpica/components/resources/rslist.c @@ -0,0 +1,275 @@ +/******************************************************************************* + * + * Module Name: rslist - Linked list utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * 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, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. + */ + +#define __RSLIST_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/include/acresrc.h> + +#define _COMPONENT ACPI_RESOURCES + ACPI_MODULE_NAME ("rslist") + + +/******************************************************************************* + * + * FUNCTION: AcpiRsConvertAmlToResources + * + * PARAMETERS: ACPI_WALK_AML_CALLBACK + * ResourcePtr - Pointer to the buffer that will + * contain the output structures + * + * RETURN: Status + * + * DESCRIPTION: Convert an AML resource to an internal representation of the + * resource that is aligned and easier to access. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsConvertAmlToResources ( + UINT8 *Aml, + UINT32 Length, + UINT32 Offset, + UINT8 ResourceIndex, + void *Context) +{ + ACPI_RESOURCE **ResourcePtr = ACPI_CAST_INDIRECT_PTR ( + ACPI_RESOURCE, Context); + ACPI_RESOURCE *Resource; + AML_RESOURCE *AmlResource; + ACPI_RSCONVERT_INFO *ConversionTable; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (RsConvertAmlToResources); + + + /* + * Check that the input buffer and all subsequent pointers into it + * are aligned on a native word boundary. Most important on IA64 + */ + Resource = *ResourcePtr; + if (ACPI_IS_MISALIGNED (Resource)) + { + ACPI_WARNING ((AE_INFO, + "Misaligned resource pointer %p", Resource)); + } + + /* Get the appropriate conversion info table */ + + AmlResource = ACPI_CAST_PTR (AML_RESOURCE, Aml); + if (AcpiUtGetResourceType (Aml) == ACPI_RESOURCE_NAME_SERIAL_BUS) + { + if (AmlResource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE) + { + ConversionTable = NULL; + } + else + { + /* This is an I2C, SPI, or UART SerialBus descriptor */ + + ConversionTable = + AcpiGbl_ConvertResourceSerialBusDispatch[ + AmlResource->CommonSerialBus.Type]; + } + } + else + { + ConversionTable = + AcpiGbl_GetResourceDispatch[ResourceIndex]; + } + + if (!ConversionTable) + { + ACPI_ERROR ((AE_INFO, + "Invalid/unsupported resource descriptor: Type 0x%2.2X", + ResourceIndex)); + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + /* Convert the AML byte stream resource to a local resource struct */ + + Status = AcpiRsConvertAmlToResource ( + Resource, AmlResource, ConversionTable); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, + "Could not convert AML resource (Type 0x%X)", *Aml)); + return_ACPI_STATUS (Status); + } + + ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES, + "Type %.2X, AmlLength %.2X InternalLength %.2X\n", + AcpiUtGetResourceType (Aml), Length, + Resource->Length)); + + /* Point to the next structure in the output buffer */ + + *ResourcePtr = ACPI_NEXT_RESOURCE (Resource); + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRsConvertResourcesToAml + * + * PARAMETERS: Resource - Pointer to the resource linked list + * AmlSizeNeeded - Calculated size of the byte stream + * needed from calling AcpiRsGetAmlLength() + * The size of the OutputBuffer is + * guaranteed to be >= AmlSizeNeeded + * OutputBuffer - Pointer to the buffer that will + * contain the byte stream + * + * RETURN: Status + * + * DESCRIPTION: Takes the resource linked list and parses it, creating a + * byte stream of resources in the caller's output buffer + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsConvertResourcesToAml ( + ACPI_RESOURCE *Resource, + ACPI_SIZE AmlSizeNeeded, + UINT8 *OutputBuffer) +{ + UINT8 *Aml = OutputBuffer; + UINT8 *EndAml = OutputBuffer + AmlSizeNeeded; + ACPI_RSCONVERT_INFO *ConversionTable; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (RsConvertResourcesToAml); + + + /* Walk the resource descriptor list, convert each descriptor */ + + while (Aml < EndAml) + { + /* Validate the (internal) Resource Type */ + + if (Resource->Type > ACPI_RESOURCE_TYPE_MAX) + { + ACPI_ERROR ((AE_INFO, + "Invalid descriptor type (0x%X) in resource list", + Resource->Type)); + return_ACPI_STATUS (AE_BAD_DATA); + } + + /* Perform the conversion */ + + if (Resource->Type == ACPI_RESOURCE_TYPE_SERIAL_BUS) + { + if (Resource->Data.CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE) + { + ConversionTable = NULL; + } + else + { + /* This is an I2C, SPI, or UART SerialBus descriptor */ + + ConversionTable = AcpiGbl_ConvertResourceSerialBusDispatch[ + Resource->Data.CommonSerialBus.Type]; + } + } + else + { + ConversionTable = AcpiGbl_SetResourceDispatch[Resource->Type]; + } + + if (!ConversionTable) + { + ACPI_ERROR ((AE_INFO, + "Invalid/unsupported resource descriptor: Type 0x%2.2X", + Resource->Type)); + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + Status = AcpiRsConvertResourceToAml (Resource, + ACPI_CAST_PTR (AML_RESOURCE, Aml), + ConversionTable); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, + "Could not convert resource (type 0x%X) to AML", + Resource->Type)); + return_ACPI_STATUS (Status); + } + + /* Perform final sanity check on the new AML resource descriptor */ + + Status = AcpiUtValidateResource ( + ACPI_CAST_PTR (AML_RESOURCE, Aml), NULL); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Check for end-of-list, normal exit */ + + if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG) + { + /* An End Tag indicates the end of the input Resource Template */ + + return_ACPI_STATUS (AE_OK); + } + + /* + * Extract the total length of the new descriptor and set the + * Aml to point to the next (output) resource descriptor + */ + Aml += AcpiUtGetDescriptorLength (Aml); + + /* Point to the next input resource descriptor */ + + Resource = ACPI_NEXT_RESOURCE (Resource); + } + + /* Completed buffer, but did not find an EndTag resource descriptor */ + + return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG); +} + |
