1147 lines
31 KiB
C
1147 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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/*******************************************************************************
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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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/* Point past the Descriptor to get the number of bytes consumed */
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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->id = 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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temp8 = *buffer;
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/* Producer / Consumer */
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output_struct->data.address16.producer_consumer = temp8 & 0x01;
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/* Decode */
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output_struct->data.address16.decode = (temp8 >> 1) & 0x01;
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/* Min Address Fixed */
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output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01;
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/* Max Address Fixed */
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output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01;
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/* Get the Type Specific Flags (Byte5) */
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buffer += 1;
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temp8 = *buffer;
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if (ACPI_MEMORY_RANGE == output_struct->data.address16.resource_type) {
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output_struct->data.address16.attribute.memory.
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read_write_attribute = (u16) (temp8 & 0x01);
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output_struct->data.address16.attribute.memory.cache_attribute =
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(u16) ((temp8 >> 1) & 0x03);
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} else {
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if (ACPI_IO_RANGE ==
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output_struct->data.address16.resource_type) {
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output_struct->data.address16.attribute.io.
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range_attribute = (u16) (temp8 & 0x03);
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output_struct->data.address16.attribute.io.
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translation_attribute = (u16) ((temp8 >> 4) & 0x03);
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} else {
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/* BUS_NUMBER_RANGE == Address16.Data->resource_type */
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/* Nothing needs to be filled in */
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}
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}
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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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temp8 = *buffer;
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output_struct->data.address16.resource_source.index =
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(u32) temp8;
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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 string into the buffer */
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index = 0;
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while (0x00 != *buffer) {
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*temp_ptr = *buffer;
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temp_ptr += 1;
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buffer += 1;
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index += 1;
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}
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/* Add the terminating null */
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*temp_ptr = 0x00;
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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 = 0x00;
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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: linked_list - 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 *linked_list,
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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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u8 temp8;
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char *temp_pointer = NULL;
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acpi_size actual_bytes;
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ACPI_FUNCTION_TRACE("rs_address16_stream");
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/* The descriptor field is static */
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*buffer = 0x88;
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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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temp8 = (u8) (linked_list->data.address16.resource_type & 0x03);
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*buffer = temp8;
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buffer += 1;
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/* Set the general flags */
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temp8 = (u8) (linked_list->data.address16.producer_consumer & 0x01);
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temp8 |= (linked_list->data.address16.decode & 0x01) << 1;
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temp8 |= (linked_list->data.address16.min_address_fixed & 0x01) << 2;
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temp8 |= (linked_list->data.address16.max_address_fixed & 0x01) << 3;
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*buffer = temp8;
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buffer += 1;
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/* Set the type specific flags */
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temp8 = 0;
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if (ACPI_MEMORY_RANGE == linked_list->data.address16.resource_type) {
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temp8 = (u8)
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(linked_list->data.address16.attribute.memory.
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read_write_attribute & 0x01);
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temp8 |=
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(linked_list->data.address16.attribute.memory.
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cache_attribute & 0x03) << 1;
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} else if (ACPI_IO_RANGE == linked_list->data.address16.resource_type) {
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temp8 = (u8)
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(linked_list->data.address16.attribute.io.range_attribute &
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0x03);
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temp8 |=
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(linked_list->data.address16.attribute.io.
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translation_attribute & 0x03) << 4;
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}
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*buffer = temp8;
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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, &linked_list->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,
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&linked_list->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,
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&linked_list->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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&linked_list->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, &linked_list->data.address16.address_length);
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buffer += 2;
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/* Resource Source Index and Resource Source are optional */
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if (0 != linked_list->data.address16.resource_source.string_length) {
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temp8 = (u8) linked_list->data.address16.resource_source.index;
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*buffer = temp8;
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buffer += 1;
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temp_pointer = (char *)buffer;
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/* Copy the string */
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ACPI_STRCPY(temp_pointer,
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linked_list->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 sting + 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
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(linked_list->data.address16.resource_source.
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string_ptr) + 1);
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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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* Set the length field to the number of bytes consumed
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* minus the header size (3 bytes)
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*/
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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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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_address32_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_address32_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;
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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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u8 *temp_ptr;
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acpi_size struct_size;
|
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u32 index;
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ACPI_FUNCTION_TRACE("rs_address32_resource");
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|
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buffer = byte_stream_buffer;
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struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32);
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|
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/* Point past the Descriptor to get the number of bytes consumed */
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|
|
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buffer += 1;
|
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ACPI_MOVE_16_TO_16(&temp16, buffer);
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|
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/* Validate minimum descriptor length */
|
|
|
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if (temp16 < 23) {
|
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
|
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}
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|
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*bytes_consumed = temp16 + 3;
|
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output_struct->id = ACPI_RSTYPE_ADDRESS32;
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/* Get the Resource Type (Byte3) */
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|
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buffer += 2;
|
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temp8 = *buffer;
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|
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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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|
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output_struct->data.address32.resource_type = temp8;
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|
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/* Get the General Flags (Byte4) */
|
|
|
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buffer += 1;
|
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temp8 = *buffer;
|
|
|
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/* Producer / Consumer */
|
|
|
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output_struct->data.address32.producer_consumer = temp8 & 0x01;
|
|
|
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/* Decode */
|
|
|
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output_struct->data.address32.decode = (temp8 >> 1) & 0x01;
|
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|
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/* Min Address Fixed */
|
|
|
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output_struct->data.address32.min_address_fixed = (temp8 >> 2) & 0x01;
|
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|
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/* Max Address Fixed */
|
|
|
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output_struct->data.address32.max_address_fixed = (temp8 >> 3) & 0x01;
|
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|
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/* Get the Type Specific Flags (Byte5) */
|
|
|
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buffer += 1;
|
|
temp8 = *buffer;
|
|
|
|
if (ACPI_MEMORY_RANGE == output_struct->data.address32.resource_type) {
|
|
output_struct->data.address32.attribute.memory.
|
|
read_write_attribute = (u16) (temp8 & 0x01);
|
|
|
|
output_struct->data.address32.attribute.memory.cache_attribute =
|
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(u16) ((temp8 >> 1) & 0x03);
|
|
} else {
|
|
if (ACPI_IO_RANGE ==
|
|
output_struct->data.address32.resource_type) {
|
|
output_struct->data.address32.attribute.io.
|
|
range_attribute = (u16) (temp8 & 0x03);
|
|
output_struct->data.address32.attribute.io.
|
|
translation_attribute = (u16) ((temp8 >> 4) & 0x03);
|
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} else {
|
|
/* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */
|
|
/* Nothing needs to be filled in */
|
|
}
|
|
}
|
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|
|
/* 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 */
|
|
|
|
temp8 = *buffer;
|
|
output_struct->data.address32.resource_source.index =
|
|
(u32) temp8;
|
|
|
|
/* 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 string into the buffer */
|
|
|
|
index = 0;
|
|
while (0x00 != *buffer) {
|
|
*temp_ptr = *buffer;
|
|
|
|
temp_ptr += 1;
|
|
buffer += 1;
|
|
index += 1;
|
|
}
|
|
|
|
/* Add the terminating null */
|
|
|
|
*temp_ptr = 0x00;
|
|
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 = 0x00;
|
|
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: linked_list - 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 *linked_list,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer;
|
|
u16 *length_field;
|
|
u8 temp8;
|
|
char *temp_pointer;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address32_stream");
|
|
|
|
buffer = *output_buffer;
|
|
|
|
/* The descriptor field is static */
|
|
|
|
*buffer = 0x87;
|
|
buffer += 1;
|
|
|
|
/* Set 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) */
|
|
|
|
temp8 = (u8) (linked_list->data.address32.resource_type & 0x03);
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the general flags */
|
|
|
|
temp8 = (u8) (linked_list->data.address32.producer_consumer & 0x01);
|
|
temp8 |= (linked_list->data.address32.decode & 0x01) << 1;
|
|
temp8 |= (linked_list->data.address32.min_address_fixed & 0x01) << 2;
|
|
temp8 |= (linked_list->data.address32.max_address_fixed & 0x01) << 3;
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the type specific flags */
|
|
|
|
temp8 = 0;
|
|
|
|
if (ACPI_MEMORY_RANGE == linked_list->data.address32.resource_type) {
|
|
temp8 = (u8)
|
|
(linked_list->data.address32.attribute.memory.
|
|
read_write_attribute & 0x01);
|
|
|
|
temp8 |=
|
|
(linked_list->data.address32.attribute.memory.
|
|
cache_attribute & 0x03) << 1;
|
|
} else if (ACPI_IO_RANGE == linked_list->data.address32.resource_type) {
|
|
temp8 = (u8)
|
|
(linked_list->data.address32.attribute.io.range_attribute &
|
|
0x03);
|
|
temp8 |=
|
|
(linked_list->data.address32.attribute.io.
|
|
translation_attribute & 0x03) << 4;
|
|
}
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the address space granularity */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.granularity);
|
|
buffer += 4;
|
|
|
|
/* Set the address range minimum */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer,
|
|
&linked_list->data.address32.min_address_range);
|
|
buffer += 4;
|
|
|
|
/* Set the address range maximum */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer,
|
|
&linked_list->data.address32.max_address_range);
|
|
buffer += 4;
|
|
|
|
/* Set the address translation offset */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer,
|
|
&linked_list->data.address32.
|
|
address_translation_offset);
|
|
buffer += 4;
|
|
|
|
/* Set the address length */
|
|
|
|
ACPI_MOVE_32_TO_32(buffer, &linked_list->data.address32.address_length);
|
|
buffer += 4;
|
|
|
|
/* Resource Source Index and Resource Source are optional */
|
|
|
|
if (0 != linked_list->data.address32.resource_source.string_length) {
|
|
temp8 = (u8) linked_list->data.address32.resource_source.index;
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
temp_pointer = (char *)buffer;
|
|
|
|
/* Copy the string */
|
|
|
|
ACPI_STRCPY(temp_pointer,
|
|
linked_list->data.address32.resource_source.
|
|
string_ptr);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the sting + one for the
|
|
* terminating null
|
|
*/
|
|
buffer +=
|
|
(acpi_size) (ACPI_STRLEN
|
|
(linked_list->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)
|
|
{
|
|
u8 *buffer;
|
|
struct acpi_resource *output_struct = (void *)*output_buffer;
|
|
u16 temp16;
|
|
u8 temp8;
|
|
u8 resource_type;
|
|
u8 *temp_ptr;
|
|
acpi_size struct_size;
|
|
u32 index;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address64_resource");
|
|
|
|
buffer = byte_stream_buffer;
|
|
struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64);
|
|
resource_type = *buffer;
|
|
|
|
/* Point past the Descriptor to get the number of bytes consumed */
|
|
|
|
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->id = 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;
|
|
temp8 = *buffer;
|
|
|
|
/* Producer / Consumer */
|
|
|
|
output_struct->data.address64.producer_consumer = temp8 & 0x01;
|
|
|
|
/* Decode */
|
|
|
|
output_struct->data.address64.decode = (temp8 >> 1) & 0x01;
|
|
|
|
/* Min Address Fixed */
|
|
|
|
output_struct->data.address64.min_address_fixed = (temp8 >> 2) & 0x01;
|
|
|
|
/* Max Address Fixed */
|
|
|
|
output_struct->data.address64.max_address_fixed = (temp8 >> 3) & 0x01;
|
|
|
|
/* Get the Type Specific Flags (Byte5) */
|
|
|
|
buffer += 1;
|
|
temp8 = *buffer;
|
|
|
|
if (ACPI_MEMORY_RANGE == output_struct->data.address64.resource_type) {
|
|
output_struct->data.address64.attribute.memory.
|
|
read_write_attribute = (u16) (temp8 & 0x01);
|
|
|
|
output_struct->data.address64.attribute.memory.cache_attribute =
|
|
(u16) ((temp8 >> 1) & 0x03);
|
|
} else {
|
|
if (ACPI_IO_RANGE ==
|
|
output_struct->data.address64.resource_type) {
|
|
output_struct->data.address64.attribute.io.
|
|
range_attribute = (u16) (temp8 & 0x03);
|
|
output_struct->data.address64.attribute.io.
|
|
translation_attribute = (u16) ((temp8 >> 4) & 0x03);
|
|
} else {
|
|
/* BUS_NUMBER_RANGE == output_struct->Data.Address64.resource_type */
|
|
/* Nothing needs to be filled in */
|
|
}
|
|
}
|
|
|
|
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 = 0x00;
|
|
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 */
|
|
|
|
temp8 = *buffer;
|
|
output_struct->data.address64.resource_source.index =
|
|
(u32) temp8;
|
|
|
|
/* 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 string into the buffer */
|
|
|
|
index = 0;
|
|
while (0x00 != *buffer) {
|
|
*temp_ptr = *buffer;
|
|
|
|
temp_ptr += 1;
|
|
buffer += 1;
|
|
index += 1;
|
|
}
|
|
|
|
/*
|
|
* Add the terminating null
|
|
*/
|
|
*temp_ptr = 0x00;
|
|
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: linked_list - 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 *linked_list,
|
|
u8 ** output_buffer, acpi_size * bytes_consumed)
|
|
{
|
|
u8 *buffer;
|
|
u16 *length_field;
|
|
u8 temp8;
|
|
char *temp_pointer;
|
|
|
|
ACPI_FUNCTION_TRACE("rs_address64_stream");
|
|
|
|
buffer = *output_buffer;
|
|
|
|
/* The descriptor field is static */
|
|
|
|
*buffer = 0x8A;
|
|
buffer += 1;
|
|
|
|
/* Set 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) */
|
|
|
|
temp8 = (u8) (linked_list->data.address64.resource_type & 0x03);
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the general flags */
|
|
|
|
temp8 = (u8) (linked_list->data.address64.producer_consumer & 0x01);
|
|
temp8 |= (linked_list->data.address64.decode & 0x01) << 1;
|
|
temp8 |= (linked_list->data.address64.min_address_fixed & 0x01) << 2;
|
|
temp8 |= (linked_list->data.address64.max_address_fixed & 0x01) << 3;
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the type specific flags */
|
|
|
|
temp8 = 0;
|
|
|
|
if (ACPI_MEMORY_RANGE == linked_list->data.address64.resource_type) {
|
|
temp8 = (u8)
|
|
(linked_list->data.address64.attribute.memory.
|
|
read_write_attribute & 0x01);
|
|
|
|
temp8 |=
|
|
(linked_list->data.address64.attribute.memory.
|
|
cache_attribute & 0x03) << 1;
|
|
} else if (ACPI_IO_RANGE == linked_list->data.address64.resource_type) {
|
|
temp8 = (u8)
|
|
(linked_list->data.address64.attribute.io.range_attribute &
|
|
0x03);
|
|
temp8 |=
|
|
(linked_list->data.address64.attribute.io.range_attribute &
|
|
0x03) << 4;
|
|
}
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/* Set the address space granularity */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.granularity);
|
|
buffer += 8;
|
|
|
|
/* Set the address range minimum */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer,
|
|
&linked_list->data.address64.min_address_range);
|
|
buffer += 8;
|
|
|
|
/* Set the address range maximum */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer,
|
|
&linked_list->data.address64.max_address_range);
|
|
buffer += 8;
|
|
|
|
/* Set the address translation offset */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer,
|
|
&linked_list->data.address64.
|
|
address_translation_offset);
|
|
buffer += 8;
|
|
|
|
/* Set the address length */
|
|
|
|
ACPI_MOVE_64_TO_64(buffer, &linked_list->data.address64.address_length);
|
|
buffer += 8;
|
|
|
|
/* Resource Source Index and Resource Source are optional */
|
|
|
|
if (0 != linked_list->data.address64.resource_source.string_length) {
|
|
temp8 = (u8) linked_list->data.address64.resource_source.index;
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
temp_pointer = (char *)buffer;
|
|
|
|
/* Copy the string */
|
|
|
|
ACPI_STRCPY(temp_pointer,
|
|
linked_list->data.address64.resource_source.
|
|
string_ptr);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the sting + one for the
|
|
* terminating null
|
|
*/
|
|
buffer +=
|
|
(acpi_size) (ACPI_STRLEN
|
|
(linked_list->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);
|
|
}
|