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>
689 lines
21 KiB
C
689 lines
21 KiB
C
/*******************************************************************************
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*
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* Module Name: rsmisc - Miscellaneous resource descriptors
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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("rsmisc")
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_generic_register_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_generic_register_resource(u8 * byte_stream_buffer,
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acpi_size * bytes_consumed,
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u8 ** output_buffer,
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acpi_size * structure_size)
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{
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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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u16 temp16;
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u8 temp8;
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acpi_size struct_size =
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ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_reg);
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ACPI_FUNCTION_TRACE("rs_generic_register_resource");
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/* Byte 0 is the Descriptor Type */
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buffer += 1;
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/* Get the Descriptor Length field (Bytes 1-2) */
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ACPI_MOVE_16_TO_16(&temp16, buffer);
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buffer += 2;
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/* Validate the descriptor length */
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if (temp16 != 12) {
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
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}
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/* The number of bytes consumed is fixed (12 + 3) */
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*bytes_consumed = 15;
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/* Fill out the structure */
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output_struct->type = ACPI_RSTYPE_GENERIC_REG;
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/* Get space_id (Byte 3) */
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temp8 = *buffer;
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output_struct->data.generic_reg.space_id = temp8;
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buffer += 1;
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/* Get register_bit_width (Byte 4) */
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temp8 = *buffer;
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output_struct->data.generic_reg.bit_width = temp8;
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buffer += 1;
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/* Get register_bit_offset (Byte 5) */
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temp8 = *buffer;
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output_struct->data.generic_reg.bit_offset = temp8;
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buffer += 1;
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/* Get address_size (Byte 6) */
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temp8 = *buffer;
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output_struct->data.generic_reg.address_size = temp8;
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buffer += 1;
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/* Get register_address (Bytes 7-14) */
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ACPI_MOVE_64_TO_64(&output_struct->data.generic_reg.address, buffer);
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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_generic_register_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_generic_register_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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u16 temp16;
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ACPI_FUNCTION_TRACE("rs_generic_register_stream");
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/* Set the Descriptor Type (Byte 0) */
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*buffer = ACPI_RDESC_TYPE_GENERIC_REGISTER;
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buffer += 1;
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/* Set the Descriptor Length (Bytes 1-2) */
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temp16 = 12;
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ACPI_MOVE_16_TO_16(buffer, &temp16);
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buffer += 2;
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/* Set space_id (Byte 3) */
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*buffer = (u8) resource->data.generic_reg.space_id;
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buffer += 1;
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/* Set register_bit_width (Byte 4) */
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*buffer = (u8) resource->data.generic_reg.bit_width;
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buffer += 1;
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/* Set register_bit_offset (Byte 5) */
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*buffer = (u8) resource->data.generic_reg.bit_offset;
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buffer += 1;
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/* Set address_size (Byte 6) */
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*buffer = (u8) resource->data.generic_reg.address_size;
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buffer += 1;
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/* Set register_address (Bytes 7-14) */
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ACPI_MOVE_64_TO_64(buffer, &resource->data.generic_reg.address);
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buffer += 8;
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/* Return the number of bytes consumed in this operation */
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*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
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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_end_tag_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_end_tag_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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struct acpi_resource *output_struct = (void *)*output_buffer;
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acpi_size struct_size = ACPI_RESOURCE_LENGTH;
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ACPI_FUNCTION_TRACE("rs_end_tag_resource");
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/* The number of bytes consumed is static */
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*bytes_consumed = 2;
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/* Fill out the structure */
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output_struct->type = ACPI_RSTYPE_END_TAG;
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/* Set the Length parameter */
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output_struct->length = 0;
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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_end_tag_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_end_tag_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 temp8 = 0;
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ACPI_FUNCTION_TRACE("rs_end_tag_stream");
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/* The Descriptor Type field is static */
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*buffer = ACPI_RDESC_TYPE_END_TAG | 0x01;
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buffer += 1;
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/*
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* Set the Checksum - zero means that the resource data is treated as if
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* the checksum operation succeeded (ACPI Spec 1.0b Section 6.4.2.8)
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*/
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temp8 = 0;
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*buffer = temp8;
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buffer += 1;
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/* Return the number of bytes consumed in this operation */
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*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
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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_vendor_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_vendor_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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u8 *buffer = byte_stream_buffer;
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struct acpi_resource *output_struct = (void *)*output_buffer;
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u16 temp16 = 0;
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u8 temp8 = 0;
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u8 index;
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acpi_size struct_size =
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ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor);
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ACPI_FUNCTION_TRACE("rs_vendor_resource");
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/* Dereference the Descriptor to find if this is a large or small item. */
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temp8 = *buffer;
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if (temp8 & ACPI_RDESC_TYPE_LARGE) {
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/* Large Item, point to the length field */
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buffer += 1;
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/* Dereference */
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ACPI_MOVE_16_TO_16(&temp16, buffer);
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/* Calculate bytes consumed */
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*bytes_consumed = (acpi_size) temp16 + 3;
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/* Point to the first vendor byte */
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buffer += 2;
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} else {
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/* Small Item, dereference the size */
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temp16 = (u8) (*buffer & 0x07);
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/* Calculate bytes consumed */
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*bytes_consumed = (acpi_size) temp16 + 1;
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/* Point to the first vendor byte */
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buffer += 1;
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}
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output_struct->type = ACPI_RSTYPE_VENDOR;
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output_struct->data.vendor_specific.length = temp16;
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for (index = 0; index < temp16; index++) {
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output_struct->data.vendor_specific.reserved[index] = *buffer;
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buffer += 1;
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}
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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 vendor string and expand the
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* struct_size to the next 32-bit boundary.
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*/
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struct_size += ACPI_ROUND_UP_to_32_bITS(temp16);
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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_vendor_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_vendor_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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u16 temp16 = 0;
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u8 temp8 = 0;
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u8 index;
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ACPI_FUNCTION_TRACE("rs_vendor_stream");
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/* Dereference the length to find if this is a large or small item. */
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if (resource->data.vendor_specific.length > 7) {
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/* Large Item, Set the descriptor field and length bytes */
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*buffer = ACPI_RDESC_TYPE_LARGE_VENDOR;
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buffer += 1;
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temp16 = (u16) resource->data.vendor_specific.length;
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ACPI_MOVE_16_TO_16(buffer, &temp16);
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buffer += 2;
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} else {
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/* Small Item, Set the descriptor field */
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temp8 = ACPI_RDESC_TYPE_SMALL_VENDOR;
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temp8 |= (u8) resource->data.vendor_specific.length;
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*buffer = temp8;
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buffer += 1;
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}
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/* Loop through all of the Vendor Specific fields */
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for (index = 0; index < resource->data.vendor_specific.length; index++) {
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temp8 = resource->data.vendor_specific.reserved[index];
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*buffer = temp8;
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buffer += 1;
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}
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/* Return the number of bytes consumed in this operation */
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*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
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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_start_depend_fns_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_start_depend_fns_resource(u8 * byte_stream_buffer,
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acpi_size * bytes_consumed,
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u8 ** output_buffer,
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acpi_size * structure_size)
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{
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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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u8 temp8 = 0;
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acpi_size struct_size =
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ACPI_SIZEOF_RESOURCE(struct acpi_resource_start_dpf);
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ACPI_FUNCTION_TRACE("rs_start_depend_fns_resource");
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/* The number of bytes consumed are found in the descriptor (Bits:0-1) */
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temp8 = *buffer;
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*bytes_consumed = (temp8 & 0x01) + 1;
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output_struct->type = ACPI_RSTYPE_START_DPF;
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/* Point to Byte 1 if it is used */
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if (2 == *bytes_consumed) {
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buffer += 1;
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temp8 = *buffer;
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/* Check Compatibility priority */
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output_struct->data.start_dpf.compatibility_priority =
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temp8 & 0x03;
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if (3 == output_struct->data.start_dpf.compatibility_priority) {
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
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}
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/* Check Performance/Robustness preference */
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output_struct->data.start_dpf.performance_robustness =
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(temp8 >> 2) & 0x03;
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if (3 == output_struct->data.start_dpf.performance_robustness) {
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
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}
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} else {
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output_struct->data.start_dpf.compatibility_priority =
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ACPI_ACCEPTABLE_CONFIGURATION;
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output_struct->data.start_dpf.performance_robustness =
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ACPI_ACCEPTABLE_CONFIGURATION;
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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);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_end_depend_fns_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_end_depend_fns_resource(u8 * byte_stream_buffer,
|
|
acpi_size * bytes_consumed,
|
|
u8 ** output_buffer, acpi_size * structure_size)
|
|
{
|
|
struct acpi_resource *output_struct = (void *)*output_buffer;
|
|
acpi_size struct_size = ACPI_RESOURCE_LENGTH;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_end_depend_fns_resource");
|
|
|
|
/* The number of bytes consumed is static */
|
|
|
|
*bytes_consumed = 1;
|
|
|
|
/* Fill out the structure */
|
|
|
|
output_struct->type = ACPI_RSTYPE_END_DPF;
|
|
|
|
/* 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_start_depend_fns_stream
|
|
*
|
|
* PARAMETERS: Resource - Pointer to the resource linked list
|
|
* output_buffer - Pointer to the user's return buffer
|
|
* bytes_consumed - u32 pointer that is filled with
|
|
* the number of bytes of the
|
|
* output_buffer used
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_start_depend_fns_stream(struct acpi_resource *resource,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer = *output_buffer;
|
|
u8 temp8 = 0;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_start_depend_fns_stream");
|
|
|
|
/*
|
|
* The descriptor type field is set based upon whether a byte is needed
|
|
* to contain Priority data.
|
|
*/
|
|
if (ACPI_ACCEPTABLE_CONFIGURATION ==
|
|
resource->data.start_dpf.compatibility_priority &&
|
|
ACPI_ACCEPTABLE_CONFIGURATION ==
|
|
resource->data.start_dpf.performance_robustness) {
|
|
*buffer = ACPI_RDESC_TYPE_START_DEPENDENT;
|
|
} else {
|
|
*buffer = ACPI_RDESC_TYPE_START_DEPENDENT | 0x01;
|
|
buffer += 1;
|
|
|
|
/* Set the Priority Byte Definition */
|
|
|
|
temp8 = 0;
|
|
temp8 = (u8) ((resource->data.start_dpf.performance_robustness &
|
|
0x03) << 2);
|
|
temp8 |= (resource->data.start_dpf.compatibility_priority &
|
|
0x03);
|
|
*buffer = temp8;
|
|
}
|
|
|
|
buffer += 1;
|
|
|
|
/* Return the number of bytes consumed in this operation */
|
|
|
|
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_end_depend_fns_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_end_depend_fns_stream(struct acpi_resource *resource,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer = *output_buffer;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_end_depend_fns_stream");
|
|
|
|
/* The Descriptor Type field is static */
|
|
|
|
*buffer = ACPI_RDESC_TYPE_END_DEPENDENT;
|
|
buffer += 1;
|
|
|
|
/* Return the number of bytes consumed in this operation */
|
|
|
|
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|