bda663d36b
Fixed a problem within the Resource Manager where support for the Generic Register descriptor was not fully implemented. This descriptor is now fully recognized, parsed, disassembled, and displayed. Restructured the Resource Manager code to utilize table-driven dispatch and lookup, eliminating many of the large switch() statements. This reduces overall subsystem code size and code complexity. Affects the resource parsing and construction, disassembly, and debug dump output. Cleaned up and restructured the debug dump output for all resource descriptors. Improved readability of the output and reduced code size. Fixed a problem where changes to internal data structures caused the optional ACPI_MUTEX_DEBUG code to fail compilation if specified. Signed-off-by: Robert Moore <Robert.Moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
1110 lines
31 KiB
C
1110 lines
31 KiB
C
/*******************************************************************************
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*
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* Module Name: rsaddr - Address resource descriptors (16/32/64)
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2005, R. Byron Moore
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include <acpi/acresrc.h>
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME("rsaddr")
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/* Local prototypes */
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static void
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acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags);
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static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource);
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static void
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acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags);
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static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource);
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_decode_general_flags
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*
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* PARAMETERS: Resource - Address resource data struct
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* Flags - Actual flag byte
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*
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* RETURN: Decoded flag bits in resource struct
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*
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* DESCRIPTION: Decode a general flag byte to an address resource struct
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*
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******************************************************************************/
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static void
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acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags)
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{
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ACPI_FUNCTION_ENTRY();
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/* Producer / Consumer - flag bit[0] */
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resource->address.producer_consumer = (u32) (flags & 0x01);
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/* Decode (_DEC) - flag bit[1] */
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resource->address.decode = (u32) ((flags >> 1) & 0x01);
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/* Min Address Fixed (_MIF) - flag bit[2] */
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resource->address.min_address_fixed = (u32) ((flags >> 2) & 0x01);
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/* Max Address Fixed (_MAF) - flag bit[3] */
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resource->address.max_address_fixed = (u32) ((flags >> 3) & 0x01);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_encode_general_flags
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*
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* PARAMETERS: Resource - Address resource data struct
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*
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* RETURN: Encoded general flag byte
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*
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* DESCRIPTION: Construct a general flag byte from an address resource struct
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*
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******************************************************************************/
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static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource)
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{
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u8 flags;
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ACPI_FUNCTION_ENTRY();
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/* Producer / Consumer - flag bit[0] */
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flags = (u8) (resource->address.producer_consumer & 0x01);
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/* Decode (_DEC) - flag bit[1] */
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flags |= (u8) ((resource->address.decode & 0x01) << 1);
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/* Min Address Fixed (_MIF) - flag bit[2] */
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flags |= (u8) ((resource->address.min_address_fixed & 0x01) << 2);
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/* Max Address Fixed (_MAF) - flag bit[3] */
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flags |= (u8) ((resource->address.max_address_fixed & 0x01) << 3);
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return (flags);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_decode_specific_flags
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*
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* PARAMETERS: Resource - Address resource data struct
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* Flags - Actual flag byte
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*
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* RETURN: Decoded flag bits in attribute struct
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*
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* DESCRIPTION: Decode a type-specific flag byte to an attribute struct.
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* Type-specific flags are only defined for the Memory and IO
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* resource types.
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*
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******************************************************************************/
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static void
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acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags)
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{
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ACPI_FUNCTION_ENTRY();
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if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
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/* Write Status (_RW) - flag bit[0] */
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resource->address.attribute.memory.read_write_attribute =
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(u16) (flags & 0x01);
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/* Memory Attributes (_MEM) - flag bits[2:1] */
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resource->address.attribute.memory.cache_attribute =
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(u16) ((flags >> 1) & 0x03);
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} else if (resource->address.resource_type == ACPI_IO_RANGE) {
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/* Ranges (_RNG) - flag bits[1:0] */
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resource->address.attribute.io.range_attribute =
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(u16) (flags & 0x03);
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/* Translations (_TTP and _TRS) - flag bits[5:4] */
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resource->address.attribute.io.translation_attribute =
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(u16) ((flags >> 4) & 0x03);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_encode_specific_flags
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*
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* PARAMETERS: Resource - Address resource data struct
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*
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* RETURN: Encoded type-specific flag byte
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*
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* DESCRIPTION: Construct a type-specific flag byte from an attribute struct.
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* Type-specific flags are only defined for the Memory and IO
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* resource types.
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*
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******************************************************************************/
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static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource)
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{
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u8 flags = 0;
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ACPI_FUNCTION_ENTRY();
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if (resource->address.resource_type == ACPI_MEMORY_RANGE) {
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/* Write Status (_RW) - flag bit[0] */
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flags = (u8)
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(resource->address.attribute.memory.
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read_write_attribute & 0x01);
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/* Memory Attributes (_MEM) - flag bits[2:1] */
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flags |= (u8)
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((resource->address.attribute.memory.
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cache_attribute & 0x03) << 1);
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} else if (resource->address.resource_type == ACPI_IO_RANGE) {
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/* Ranges (_RNG) - flag bits[1:0] */
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flags = (u8)
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(resource->address.attribute.io.range_attribute & 0x03);
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/* Translations (_TTP and _TRS) - flag bits[5:4] */
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flags |= (u8)
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((resource->address.attribute.io.
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translation_attribute & 0x03) << 4);
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}
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return (flags);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_address16_resource
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*
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* PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
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* stream
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* bytes_consumed - Pointer to where the number of bytes
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* consumed the byte_stream_buffer is
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* returned
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* output_buffer - Pointer to the return data buffer
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* structure_size - Pointer to where the number of bytes
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* in the return data struct is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the resource byte stream and fill out the appropriate
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* structure pointed to by the output_buffer. Return the
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* number of bytes consumed from the byte stream.
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*
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******************************************************************************/
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acpi_status
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acpi_rs_address16_resource(u8 * byte_stream_buffer,
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acpi_size * bytes_consumed,
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u8 ** output_buffer, acpi_size * structure_size)
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{
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u32 index;
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u16 temp16;
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u8 temp8;
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u8 *temp_ptr;
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u8 *buffer = byte_stream_buffer;
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struct acpi_resource *output_struct = (void *)*output_buffer;
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acpi_size struct_size =
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ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16);
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ACPI_FUNCTION_TRACE("rs_address16_resource");
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/* Get the Descriptor Length field */
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buffer += 1;
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ACPI_MOVE_16_TO_16(&temp16, buffer);
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/* Validate minimum descriptor length */
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if (temp16 < 13) {
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
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}
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*bytes_consumed = temp16 + 3;
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output_struct->type = ACPI_RSTYPE_ADDRESS16;
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/* Get the Resource Type (Byte3) */
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buffer += 2;
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temp8 = *buffer;
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/* Values 0-2 and 0xC0-0xFF are valid */
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if ((temp8 > 2) && (temp8 < 0xC0)) {
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return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
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}
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output_struct->data.address16.resource_type = temp8;
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/* Get the General Flags (Byte4) */
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buffer += 1;
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acpi_rs_decode_general_flags(&output_struct->data, *buffer);
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/* Get the Type Specific Flags (Byte5) */
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buffer += 1;
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acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
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/* Get Granularity (Bytes 6-7) */
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buffer += 1;
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ACPI_MOVE_16_TO_32(&output_struct->data.address16.granularity, buffer);
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/* Get min_address_range (Bytes 8-9) */
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buffer += 2;
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ACPI_MOVE_16_TO_32(&output_struct->data.address16.min_address_range,
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buffer);
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/* Get max_address_range (Bytes 10-11) */
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buffer += 2;
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ACPI_MOVE_16_TO_32(&output_struct->data.address16.max_address_range,
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buffer);
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/* Get address_translation_offset (Bytes 12-13) */
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buffer += 2;
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ACPI_MOVE_16_TO_32(&output_struct->data.address16.
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address_translation_offset, buffer);
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/* Get address_length (Bytes 14-15) */
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buffer += 2;
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ACPI_MOVE_16_TO_32(&output_struct->data.address16.address_length,
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buffer);
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/* Resource Source Index (if present) */
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buffer += 2;
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/*
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* This will leave us pointing to the Resource Source Index
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* If it is present, then save it off and calculate the
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* pointer to where the null terminated string goes:
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* Each Interrupt takes 32-bits + the 5 bytes of the
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* stream that are default.
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*
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* Note: Some resource descriptors will have an additional null, so
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* we add 1 to the length.
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*/
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if (*bytes_consumed > (16 + 1)) {
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/* Dereference the Index */
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output_struct->data.address16.resource_source.index =
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(u32) * buffer;
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/* Point to the String */
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buffer += 1;
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/* Point the String pointer to the end of this structure */
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output_struct->data.address16.resource_source.string_ptr =
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(char *)((u8 *) output_struct + struct_size);
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temp_ptr = (u8 *)
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output_struct->data.address16.resource_source.string_ptr;
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/* Copy the resource_source string into the buffer */
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index = 0;
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while (*buffer) {
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*temp_ptr = *buffer;
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temp_ptr++;
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buffer++;
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index++;
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}
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/* Add the terminating null and set the string length */
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*temp_ptr = 0;
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output_struct->data.address16.resource_source.string_length =
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index + 1;
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/*
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* In order for the struct_size to fall on a 32-bit boundary,
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* calculate the length of the string and expand the
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* struct_size to the next 32-bit boundary.
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*/
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temp8 = (u8) (index + 1);
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struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
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} else {
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output_struct->data.address16.resource_source.index = 0;
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output_struct->data.address16.resource_source.string_length = 0;
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output_struct->data.address16.resource_source.string_ptr = NULL;
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}
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/* Set the Length parameter */
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output_struct->length = (u32) struct_size;
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/* Return the final size of the structure */
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*structure_size = struct_size;
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_address16_stream
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*
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* PARAMETERS: Resource - Pointer to the resource linked list
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* output_buffer - Pointer to the user's return buffer
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* bytes_consumed - Pointer to where the number of bytes
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* used in the output_buffer is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Take the linked list resource structure and fills in the
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* the appropriate bytes in a byte stream
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*
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******************************************************************************/
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acpi_status
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acpi_rs_address16_stream(struct acpi_resource *resource,
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u8 ** output_buffer, acpi_size * bytes_consumed)
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{
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u8 *buffer = *output_buffer;
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u8 *length_field;
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acpi_size actual_bytes;
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ACPI_FUNCTION_TRACE("rs_address16_stream");
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/* Set the Descriptor Type field */
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*buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE;
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buffer += 1;
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/* Save a pointer to the Length field - to be filled in later */
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length_field = buffer;
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buffer += 2;
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/* Set the Resource Type (Memory, Io, bus_number) */
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*buffer = (u8) (resource->data.address16.resource_type & 0x03);
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buffer += 1;
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/* Set the general flags */
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*buffer = acpi_rs_encode_general_flags(&resource->data);
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buffer += 1;
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/* Set the type specific flags */
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*buffer = acpi_rs_encode_specific_flags(&resource->data);
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buffer += 1;
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/* Set the address space granularity */
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ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.granularity);
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buffer += 2;
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/* Set the address range minimum */
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ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.min_address_range);
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buffer += 2;
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/* Set the address range maximum */
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ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.max_address_range);
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buffer += 2;
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/* Set the address translation offset */
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ACPI_MOVE_32_TO_16(buffer,
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&resource->data.address16.
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address_translation_offset);
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buffer += 2;
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/* Set the address length */
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ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.address_length);
|
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buffer += 2;
|
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|
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/* Resource Source Index and Resource Source are optional */
|
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|
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if (resource->data.address16.resource_source.string_length) {
|
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*buffer = (u8) resource->data.address16.resource_source.index;
|
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buffer += 1;
|
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|
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/* Copy the resource_source string */
|
|
|
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ACPI_STRCPY((char *)buffer,
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resource->data.address16.resource_source.
|
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string_ptr);
|
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|
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/*
|
|
* Buffer needs to be set to the length of the string + one for the
|
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* terminating null
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*/
|
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buffer +=
|
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(acpi_size) (ACPI_STRLEN
|
|
(resource->data.address16.resource_source.
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string_ptr) + 1);
|
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}
|
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|
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/* Return the number of bytes consumed in this operation */
|
|
|
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actual_bytes = ACPI_PTR_DIFF(buffer, *output_buffer);
|
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*bytes_consumed = actual_bytes;
|
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|
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/*
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|
* Set the length field to the number of bytes consumed
|
|
* minus the header size (3 bytes)
|
|
*/
|
|
actual_bytes -= 3;
|
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ACPI_MOVE_SIZE_TO_16(length_field, &actual_bytes);
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return_ACPI_STATUS(AE_OK);
|
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}
|
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|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_address32_resource
|
|
*
|
|
* PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
|
|
* stream
|
|
* bytes_consumed - Pointer to where the number of bytes
|
|
* consumed the byte_stream_buffer is
|
|
* returned
|
|
* output_buffer - Pointer to the return data buffer
|
|
* structure_size - Pointer to where the number of bytes
|
|
* in the return data struct is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the resource byte stream and fill out the appropriate
|
|
* structure pointed to by the output_buffer. Return the
|
|
* number of bytes consumed from the byte stream.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_address32_resource(u8 * byte_stream_buffer,
|
|
acpi_size * bytes_consumed,
|
|
u8 ** output_buffer, acpi_size * structure_size)
|
|
{
|
|
u16 temp16;
|
|
u8 temp8;
|
|
u8 *temp_ptr;
|
|
u32 index;
|
|
u8 *buffer = byte_stream_buffer;
|
|
struct acpi_resource *output_struct = (void *)*output_buffer;
|
|
acpi_size struct_size =
|
|
ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address32_resource");
|
|
|
|
/* Get the Descriptor Length field */
|
|
|
|
buffer += 1;
|
|
ACPI_MOVE_16_TO_16(&temp16, buffer);
|
|
|
|
/* Validate minimum descriptor length */
|
|
|
|
if (temp16 < 23) {
|
|
return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
|
|
}
|
|
|
|
*bytes_consumed = temp16 + 3;
|
|
output_struct->type = ACPI_RSTYPE_ADDRESS32;
|
|
|
|
/* Get the Resource Type (Byte3) */
|
|
|
|
buffer += 2;
|
|
temp8 = *buffer;
|
|
|
|
/* Values 0-2 and 0xC0-0xFF are valid */
|
|
|
|
if ((temp8 > 2) && (temp8 < 0xC0)) {
|
|
return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
|
|
}
|
|
|
|
output_struct->data.address32.resource_type = temp8;
|
|
|
|
/* Get the General Flags (Byte4) */
|
|
|
|
buffer += 1;
|
|
acpi_rs_decode_general_flags(&output_struct->data, *buffer);
|
|
|
|
/* Get the Type Specific Flags (Byte5) */
|
|
|
|
buffer += 1;
|
|
acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
|
|
|
|
/* Get Granularity (Bytes 6-9) */
|
|
|
|
buffer += 1;
|
|
ACPI_MOVE_32_TO_32(&output_struct->data.address32.granularity, buffer);
|
|
|
|
/* Get min_address_range (Bytes 10-13) */
|
|
|
|
buffer += 4;
|
|
ACPI_MOVE_32_TO_32(&output_struct->data.address32.min_address_range,
|
|
buffer);
|
|
|
|
/* Get max_address_range (Bytes 14-17) */
|
|
|
|
buffer += 4;
|
|
ACPI_MOVE_32_TO_32(&output_struct->data.address32.max_address_range,
|
|
buffer);
|
|
|
|
/* Get address_translation_offset (Bytes 18-21) */
|
|
|
|
buffer += 4;
|
|
ACPI_MOVE_32_TO_32(&output_struct->data.address32.
|
|
address_translation_offset, buffer);
|
|
|
|
/* Get address_length (Bytes 22-25) */
|
|
|
|
buffer += 4;
|
|
ACPI_MOVE_32_TO_32(&output_struct->data.address32.address_length,
|
|
buffer);
|
|
|
|
/* Resource Source Index (if present) */
|
|
|
|
buffer += 4;
|
|
|
|
/*
|
|
* This will leave us pointing to the Resource Source Index
|
|
* If it is present, then save it off and calculate the
|
|
* pointer to where the null terminated string goes:
|
|
*
|
|
* Note: Some resource descriptors will have an additional null, so
|
|
* we add 1 to the length.
|
|
*/
|
|
if (*bytes_consumed > (26 + 1)) {
|
|
/* Dereference the Index */
|
|
|
|
output_struct->data.address32.resource_source.index =
|
|
(u32) * buffer;
|
|
|
|
/* Point to the String */
|
|
|
|
buffer += 1;
|
|
|
|
/* Point the String pointer to the end of this structure */
|
|
|
|
output_struct->data.address32.resource_source.string_ptr =
|
|
(char *)((u8 *) output_struct + struct_size);
|
|
|
|
temp_ptr = (u8 *)
|
|
output_struct->data.address32.resource_source.string_ptr;
|
|
|
|
/* Copy the resource_source string into the buffer */
|
|
|
|
index = 0;
|
|
while (*buffer) {
|
|
*temp_ptr = *buffer;
|
|
|
|
temp_ptr++;
|
|
buffer++;
|
|
index++;
|
|
}
|
|
|
|
/* Add the terminating null and set the string length */
|
|
|
|
*temp_ptr = 0;
|
|
output_struct->data.address32.resource_source.string_length =
|
|
index + 1;
|
|
|
|
/*
|
|
* In order for the struct_size to fall on a 32-bit boundary,
|
|
* calculate the length of the string and expand the
|
|
* struct_size to the next 32-bit boundary.
|
|
*/
|
|
temp8 = (u8) (index + 1);
|
|
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
|
|
} else {
|
|
output_struct->data.address32.resource_source.index = 0;
|
|
output_struct->data.address32.resource_source.string_length = 0;
|
|
output_struct->data.address32.resource_source.string_ptr = NULL;
|
|
}
|
|
|
|
/* Set the Length parameter */
|
|
|
|
output_struct->length = (u32) struct_size;
|
|
|
|
/* Return the final size of the structure */
|
|
|
|
*structure_size = struct_size;
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_address32_stream
|
|
*
|
|
* PARAMETERS: Resource - Pointer to the resource linked list
|
|
* output_buffer - Pointer to the user's return buffer
|
|
* bytes_consumed - Pointer to where the number of bytes
|
|
* used in the output_buffer is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_address32_stream(struct acpi_resource *resource,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer;
|
|
u16 *length_field;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address32_stream");
|
|
|
|
buffer = *output_buffer;
|
|
|
|
/* Set the Descriptor Type field */
|
|
|
|
*buffer = ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE;
|
|
buffer += 1;
|
|
|
|
/* Save a pointer to the Length field - to be filled in later */
|
|
|
|
length_field = ACPI_CAST_PTR(u16, buffer);
|
|
buffer += 2;
|
|
|
|
/* Set the Resource Type (Memory, Io, bus_number) */
|
|
|
|
*buffer = (u8) (resource->data.address32.resource_type & 0x03);
|
|
buffer += 1;
|
|
|
|
/* Set the general flags */
|
|
|
|
*buffer = acpi_rs_encode_general_flags(&resource->data);
|
|
buffer += 1;
|
|
|
|
/* Set the type specific flags */
|
|
|
|
*buffer = acpi_rs_encode_specific_flags(&resource->data);
|
|
buffer += 1;
|
|
|
|
/* Set the address space granularity */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.granularity);
|
|
buffer += 4;
|
|
|
|
/* Set the address range minimum */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.min_address_range);
|
|
buffer += 4;
|
|
|
|
/* Set the address range maximum */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.max_address_range);
|
|
buffer += 4;
|
|
|
|
/* Set the address translation offset */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer,
|
|
&resource->data.address32.
|
|
address_translation_offset);
|
|
buffer += 4;
|
|
|
|
/* Set the address length */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.address_length);
|
|
buffer += 4;
|
|
|
|
/* Resource Source Index and Resource Source are optional */
|
|
|
|
if (resource->data.address32.resource_source.string_length) {
|
|
*buffer = (u8) resource->data.address32.resource_source.index;
|
|
buffer += 1;
|
|
|
|
/* Copy the resource_source string */
|
|
|
|
ACPI_STRCPY((char *)buffer,
|
|
resource->data.address32.resource_source.
|
|
string_ptr);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the string + one for the
|
|
* terminating null
|
|
*/
|
|
buffer +=
|
|
(acpi_size) (ACPI_STRLEN
|
|
(resource->data.address32.resource_source.
|
|
string_ptr) + 1);
|
|
}
|
|
|
|
/* Return the number of bytes consumed in this operation */
|
|
|
|
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
|
|
|
|
/*
|
|
* Set the length field to the number of bytes consumed
|
|
* minus the header size (3 bytes)
|
|
*/
|
|
*length_field = (u16) (*bytes_consumed - 3);
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_address64_resource
|
|
*
|
|
* PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
|
|
* stream
|
|
* bytes_consumed - Pointer to where the number of bytes
|
|
* consumed the byte_stream_buffer is
|
|
* returned
|
|
* output_buffer - Pointer to the return data buffer
|
|
* structure_size - Pointer to where the number of bytes
|
|
* in the return data struct is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the resource byte stream and fill out the appropriate
|
|
* structure pointed to by the output_buffer. Return the
|
|
* number of bytes consumed from the byte stream.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_address64_resource(u8 * byte_stream_buffer,
|
|
acpi_size * bytes_consumed,
|
|
u8 ** output_buffer, acpi_size * structure_size)
|
|
{
|
|
u16 temp16;
|
|
u8 temp8;
|
|
u8 resource_type;
|
|
u8 *temp_ptr;
|
|
u32 index;
|
|
u8 *buffer = byte_stream_buffer;
|
|
struct acpi_resource *output_struct = (void *)*output_buffer;
|
|
acpi_size struct_size =
|
|
ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address64_resource");
|
|
|
|
/* Get the Descriptor Type */
|
|
|
|
resource_type = *buffer;
|
|
|
|
/* Get the Descriptor Length field */
|
|
|
|
buffer += 1;
|
|
ACPI_MOVE_16_TO_16(&temp16, buffer);
|
|
|
|
/* Validate minimum descriptor length */
|
|
|
|
if (temp16 < 43) {
|
|
return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
|
|
}
|
|
|
|
*bytes_consumed = temp16 + 3;
|
|
output_struct->type = ACPI_RSTYPE_ADDRESS64;
|
|
|
|
/* Get the Resource Type (Byte3) */
|
|
|
|
buffer += 2;
|
|
temp8 = *buffer;
|
|
|
|
/* Values 0-2 and 0xC0-0xFF are valid */
|
|
|
|
if ((temp8 > 2) && (temp8 < 0xC0)) {
|
|
return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
|
|
}
|
|
|
|
output_struct->data.address64.resource_type = temp8;
|
|
|
|
/* Get the General Flags (Byte4) */
|
|
|
|
buffer += 1;
|
|
acpi_rs_decode_general_flags(&output_struct->data, *buffer);
|
|
|
|
/* Get the Type Specific Flags (Byte5) */
|
|
|
|
buffer += 1;
|
|
acpi_rs_decode_specific_flags(&output_struct->data, *buffer);
|
|
|
|
if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
|
|
/* Move past revision_id and Reserved byte */
|
|
|
|
buffer += 2;
|
|
}
|
|
|
|
/* Get Granularity (Bytes 6-13) or (Bytes 8-15) */
|
|
|
|
buffer += 1;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.granularity, buffer);
|
|
|
|
/* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */
|
|
|
|
buffer += 8;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.min_address_range,
|
|
buffer);
|
|
|
|
/* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */
|
|
|
|
buffer += 8;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.max_address_range,
|
|
buffer);
|
|
|
|
/* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */
|
|
|
|
buffer += 8;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.
|
|
address_translation_offset, buffer);
|
|
|
|
/* Get address_length (Bytes 38-45) or (Bytes 40-47) */
|
|
|
|
buffer += 8;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length,
|
|
buffer);
|
|
|
|
output_struct->data.address64.resource_source.index = 0;
|
|
output_struct->data.address64.resource_source.string_length = 0;
|
|
output_struct->data.address64.resource_source.string_ptr = NULL;
|
|
|
|
if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
|
|
/* Get type_specific_attribute (Bytes 48-55) */
|
|
|
|
buffer += 8;
|
|
ACPI_MOVE_64_TO_64(&output_struct->data.address64.
|
|
type_specific_attributes, buffer);
|
|
} else {
|
|
output_struct->data.address64.type_specific_attributes = 0;
|
|
|
|
/* Resource Source Index (if present) */
|
|
|
|
buffer += 8;
|
|
|
|
/*
|
|
* This will leave us pointing to the Resource Source Index
|
|
* If it is present, then save it off and calculate the
|
|
* pointer to where the null terminated string goes:
|
|
* Each Interrupt takes 32-bits + the 5 bytes of the
|
|
* stream that are default.
|
|
*
|
|
* Note: Some resource descriptors will have an additional null, so
|
|
* we add 1 to the length.
|
|
*/
|
|
if (*bytes_consumed > (46 + 1)) {
|
|
/* Dereference the Index */
|
|
|
|
output_struct->data.address64.resource_source.index =
|
|
(u32) * buffer;
|
|
|
|
/* Point to the String */
|
|
|
|
buffer += 1;
|
|
|
|
/* Point the String pointer to the end of this structure */
|
|
|
|
output_struct->data.address64.resource_source.
|
|
string_ptr =
|
|
(char *)((u8 *) output_struct + struct_size);
|
|
|
|
temp_ptr = (u8 *)
|
|
output_struct->data.address64.resource_source.
|
|
string_ptr;
|
|
|
|
/* Copy the resource_source string into the buffer */
|
|
|
|
index = 0;
|
|
while (*buffer) {
|
|
*temp_ptr = *buffer;
|
|
|
|
temp_ptr++;
|
|
buffer++;
|
|
index++;
|
|
}
|
|
|
|
/*
|
|
* Add the terminating null and set the string length
|
|
*/
|
|
*temp_ptr = 0;
|
|
output_struct->data.address64.resource_source.
|
|
string_length = index + 1;
|
|
|
|
/*
|
|
* In order for the struct_size to fall on a 32-bit boundary,
|
|
* calculate the length of the string and expand the
|
|
* struct_size to the next 32-bit boundary.
|
|
*/
|
|
temp8 = (u8) (index + 1);
|
|
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
|
|
}
|
|
}
|
|
|
|
/* Set the Length parameter */
|
|
|
|
output_struct->length = (u32) struct_size;
|
|
|
|
/* Return the final size of the structure */
|
|
|
|
*structure_size = struct_size;
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_address64_stream
|
|
*
|
|
* PARAMETERS: Resource - Pointer to the resource linked list
|
|
* output_buffer - Pointer to the user's return buffer
|
|
* bytes_consumed - Pointer to where the number of bytes
|
|
* used in the output_buffer is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_address64_stream(struct acpi_resource *resource,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer;
|
|
u16 *length_field;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address64_stream");
|
|
|
|
buffer = *output_buffer;
|
|
|
|
/* Set the Descriptor Type field */
|
|
|
|
*buffer = ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE;
|
|
buffer += 1;
|
|
|
|
/* Save a pointer to the Length field - to be filled in later */
|
|
|
|
length_field = ACPI_CAST_PTR(u16, buffer);
|
|
buffer += 2;
|
|
|
|
/* Set the Resource Type (Memory, Io, bus_number) */
|
|
|
|
*buffer = (u8) (resource->data.address64.resource_type & 0x03);
|
|
buffer += 1;
|
|
|
|
/* Set the general flags */
|
|
|
|
*buffer = acpi_rs_encode_general_flags(&resource->data);
|
|
buffer += 1;
|
|
|
|
/* Set the type specific flags */
|
|
|
|
*buffer = acpi_rs_encode_specific_flags(&resource->data);
|
|
buffer += 1;
|
|
|
|
/* Set the address space granularity */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.granularity);
|
|
buffer += 8;
|
|
|
|
/* Set the address range minimum */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.min_address_range);
|
|
buffer += 8;
|
|
|
|
/* Set the address range maximum */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.max_address_range);
|
|
buffer += 8;
|
|
|
|
/* Set the address translation offset */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer,
|
|
&resource->data.address64.
|
|
address_translation_offset);
|
|
buffer += 8;
|
|
|
|
/* Set the address length */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.address_length);
|
|
buffer += 8;
|
|
|
|
/* Resource Source Index and Resource Source are optional */
|
|
|
|
if (resource->data.address64.resource_source.string_length) {
|
|
*buffer = (u8) resource->data.address64.resource_source.index;
|
|
buffer += 1;
|
|
|
|
/* Copy the resource_source string */
|
|
|
|
ACPI_STRCPY((char *)buffer,
|
|
resource->data.address64.resource_source.
|
|
string_ptr);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the string + one for the
|
|
* terminating null
|
|
*/
|
|
buffer +=
|
|
(acpi_size) (ACPI_STRLEN
|
|
(resource->data.address64.resource_source.
|
|
string_ptr) + 1);
|
|
}
|
|
|
|
/* Return the number of bytes consumed in this operation */
|
|
|
|
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
|
|
|
|
/*
|
|
* Set the length field to the number of bytes consumed
|
|
* minus the header size (3 bytes)
|
|
*/
|
|
*length_field = (u16) (*bytes_consumed - 3);
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|