mirror of
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c501d8112c
svn path=/branches/aicom-network-fixes/; revision=34994
801 lines
20 KiB
C
801 lines
20 KiB
C
/*******************************************************************************
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*
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* Module Name: rsaddr - Acpi_rs_address16_resource
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* Acpi_rs_address16_stream
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* Acpi_rs_address32_resource
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* Acpi_rs_address32_stream
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* $Revision: 1.1 $
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000, 2001 R. Byron Moore
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <acpi.h>
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#define _COMPONENT ACPI_RESOURCES
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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 - u32 pointer that is filled with
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* the number of bytes consumed from
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* the Byte_stream_buffer
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* Output_buffer - Pointer to the user's return buffer
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* Structure_size - u32 pointer that is filled with
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* the number of bytes in the filled
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* in structure
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*
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* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
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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 (
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u8 *byte_stream_buffer,
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u32 *bytes_consumed,
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u8 **output_buffer,
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u32 *structure_size)
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{
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u8 *buffer = byte_stream_buffer;
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RESOURCE *output_struct = (RESOURCE *) * output_buffer;
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u16 temp16;
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u8 temp8;
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u32 index;
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u32 struct_size = sizeof(ADDRESS16_RESOURCE) +
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RESOURCE_LENGTH_NO_DATA;
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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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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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*bytes_consumed = temp16 + 3;
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output_struct->id = address16;
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output_struct->length = struct_size;
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/*
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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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/* Values 0-2 are valid */
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if (temp8 > 2) {
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return (AE_AML_ERROR);
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}
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output_struct->data.address16.resource_type = temp8 & 0x03;
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/*
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* Get the General Flags (Byte4)
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*/
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buffer += 1;
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temp8 = *buffer;
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/*
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* Producer / Consumer
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*/
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output_struct->data.address16.producer_consumer = temp8 & 0x01;
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/*
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* Decode
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*/
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output_struct->data.address16.decode = (temp8 >> 1) & 0x01;
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/*
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* Min Address Fixed
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*/
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output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01;
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/*
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* Max Address Fixed
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*/
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output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01;
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/*
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* Get the Type Specific Flags (Byte5)
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*/
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buffer += 1;
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temp8 = *buffer;
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if (MEMORY_RANGE == output_struct->data.address16.resource_type) {
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output_struct->data.address16.attribute.memory.read_write_attribute =
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(u16) (temp8 & 0x01);
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output_struct->data.address16.attribute.memory.cache_attribute =
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(u16) ((temp8 >> 1) & 0x0F);
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}
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else {
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if (IO_RANGE == output_struct->data.address16.resource_type) {
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output_struct->data.address16.attribute.io.range_attribute =
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(u16) (temp8 & 0x03);
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}
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else {
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/* BUS_NUMBER_RANGE == Address32_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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/*
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* Get Granularity (Bytes 6-7)
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*/
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buffer += 1;
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MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.granularity,
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buffer);
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/*
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* Get Min_address_range (Bytes 8-9)
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*/
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buffer += 2;
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MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.min_address_range,
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buffer);
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/*
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* Get Max_address_range (Bytes 10-11)
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*/
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buffer += 2;
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MOVE_UNALIGNED16_TO_16
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(&output_struct->data.address16.max_address_range,
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buffer);
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/*
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* Get Address_translation_offset (Bytes 12-13)
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*/
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buffer += 2;
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MOVE_UNALIGNED16_TO_16
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(&output_struct->data.address16.address_translation_offset,
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buffer);
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/*
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* Get Address_length (Bytes 14-15)
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*/
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buffer += 2;
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MOVE_UNALIGNED16_TO_16
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(&output_struct->data.address16.address_length,
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buffer);
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/*
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* Resource Source Index (if present)
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*/
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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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if (*bytes_consumed > 16) {
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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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/* Copy the string into the buffer */
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index = 0;
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while (0x00 != *buffer) {
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output_struct->data.address16.resource_source[index] =
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*buffer;
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buffer += 1;
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index += 1;
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}
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/*
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* Add the terminating null
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*/
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output_struct->data.address16.resource_source[index] = 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 boundry,
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* calculate the length of the string and expand the
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* Struct_size to the next 32-bit boundry.
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*/
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temp8 = (u8) (index + 1);
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struct_size += ROUND_UP_TO_32_bITS (temp8);
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output_struct->length = struct_size;
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}
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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[0] = 0x00;
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}
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/*
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* Return the final size of the structure
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*/
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*structure_size = struct_size;
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return (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 - u32 pointer that is filled with
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* the number of bytes of the
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* Output_buffer used
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*
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* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
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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 (
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RESOURCE *linked_list,
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u8 **output_buffer,
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u32 *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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NATIVE_CHAR *temp_pointer = NULL;
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u32 actual_bytes;
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/*
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* The descriptor field is static
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*/
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*buffer = 0x88;
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buffer += 1;
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/*
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* Save a pointer to the Length field - to be filled in later
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*/
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length_field = buffer;
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buffer += 2;
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/*
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* Set the Resource Type (Memory, Io, Bus_number)
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*/
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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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/*
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* Set the general flags
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*/
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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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/*
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* Set the type specific flags
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*/
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temp8 = 0;
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if (MEMORY_RANGE == linked_list->data.address16.resource_type) {
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temp8 = (u8)
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(linked_list->data.address16.attribute.memory.read_write_attribute &
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0x01);
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temp8 |=
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(linked_list->data.address16.attribute.memory.cache_attribute &
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0x0F) << 1;
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}
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else if (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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}
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*buffer = temp8;
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buffer += 1;
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/*
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* Set the address space granularity
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*/
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MOVE_UNALIGNED16_TO_16 (buffer,
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&linked_list->data.address16.granularity);
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buffer += 2;
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/*
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* Set the address range minimum
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*/
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MOVE_UNALIGNED16_TO_16 (buffer,
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&linked_list->data.address16.min_address_range);
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buffer += 2;
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/*
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* Set the address range maximum
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*/
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MOVE_UNALIGNED16_TO_16 (buffer,
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&linked_list->data.address16.max_address_range);
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buffer += 2;
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/*
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* Set the address translation offset
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*/
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MOVE_UNALIGNED16_TO_16 (buffer,
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&linked_list->data.address16.address_translation_offset);
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buffer += 2;
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/*
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* Set the address length
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*/
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MOVE_UNALIGNED16_TO_16 (buffer,
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&linked_list->data.address16.address_length);
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buffer += 2;
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/*
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* Resource Source Index and Resource Source are optional
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*/
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if (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 = (NATIVE_CHAR *) buffer;
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/*
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* Copy the string
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*/
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STRCPY (temp_pointer, linked_list->data.address16.resource_source);
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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 += (STRLEN (linked_list->data.address16.resource_source) + 1);
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}
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/*
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* Return the number of bytes consumed in this operation
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*/
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actual_bytes = (u32) ((NATIVE_UINT) buffer -
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(NATIVE_UINT) *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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MOVE_UNALIGNED16_TO_16 (length_field, &actual_bytes);
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return (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 - u32 pointer that is filled with
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* the number of bytes consumed from
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* the Byte_stream_buffer
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* Output_buffer - Pointer to the user's return buffer
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* Structure_size - u32 pointer that is filled with
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* the number of bytes in the filled
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* in structure
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*
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* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
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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 (
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u8 *byte_stream_buffer,
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u32 *bytes_consumed,
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u8 **output_buffer,
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u32 *structure_size)
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{
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u8 *buffer;
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RESOURCE *output_struct;
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u16 temp16;
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u8 temp8;
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u32 struct_size;
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u32 index;
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buffer = byte_stream_buffer;
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output_struct = (RESOURCE *) *output_buffer;
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struct_size = sizeof (ADDRESS32_RESOURCE) +
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RESOURCE_LENGTH_NO_DATA;
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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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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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*bytes_consumed = temp16 + 3;
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output_struct->id = address32;
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/*
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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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/* Values 0-2 are valid */
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if(temp8 > 2) {
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return (AE_AML_ERROR);
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}
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output_struct->data.address32.resource_type = temp8 & 0x03;
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/*
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* Get the General Flags (Byte4)
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*/
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buffer += 1;
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temp8 = *buffer;
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/*
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* Producer / Consumer
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*/
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output_struct->data.address32.producer_consumer = temp8 & 0x01;
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/*
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* Decode
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*/
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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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*/
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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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*/
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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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*/
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buffer += 1;
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temp8 = *buffer;
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if (MEMORY_RANGE == output_struct->data.address32.resource_type) {
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output_struct->data.address32.attribute.memory.read_write_attribute =
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(u16) (temp8 & 0x01);
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output_struct->data.address32.attribute.memory.cache_attribute =
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(u16) ((temp8 >> 1) & 0x0F);
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}
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else {
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if (IO_RANGE == output_struct->data.address32.resource_type) {
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output_struct->data.address32.attribute.io.range_attribute =
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(u16) (temp8 & 0x03);
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}
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else {
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/* BUS_NUMBER_RANGE == Output_struct->Data.Address32.Resource_type */
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/* Nothing needs to be filled in */
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}
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}
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/*
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* Get Granularity (Bytes 6-9)
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*/
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buffer += 1;
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.granularity,
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buffer);
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/*
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* Get Min_address_range (Bytes 10-13)
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*/
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buffer += 4;
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.min_address_range,
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buffer);
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/*
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* Get Max_address_range (Bytes 14-17)
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*/
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buffer += 4;
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.max_address_range,
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buffer);
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/*
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* Get Address_translation_offset (Bytes 18-21)
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*/
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buffer += 4;
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MOVE_UNALIGNED32_TO_32
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(&output_struct->data.address32.address_translation_offset,
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buffer);
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/*
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* Get Address_length (Bytes 22-25)
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*/
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buffer += 4;
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.address_length,
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buffer);
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/*
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* Resource Source Index (if present)
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*/
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buffer += 4;
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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
|
|
* pointer to where the null terminated string goes:
|
|
* Each Interrupt takes 32-bits + the 5 bytes of the
|
|
* stream that are default.
|
|
*/
|
|
if (*bytes_consumed > 26) {
|
|
/* Dereference the Index */
|
|
|
|
temp8 = *buffer;
|
|
output_struct->data.address32.resource_source_index = (u32)temp8;
|
|
|
|
/* Point to the String */
|
|
|
|
buffer += 1;
|
|
|
|
/* Copy the string into the buffer */
|
|
|
|
index = 0;
|
|
|
|
while (0x00 != *buffer) {
|
|
output_struct->data.address32.resource_source[index] = *buffer;
|
|
buffer += 1;
|
|
index += 1;
|
|
}
|
|
|
|
/*
|
|
* Add the terminating null
|
|
*/
|
|
output_struct->data.address32.resource_source[index] = 0x00;
|
|
|
|
output_struct->data.address32.resource_source_string_length = index + 1;
|
|
|
|
/*
|
|
* In order for the Struct_size to fall on a 32-bit boundry,
|
|
* calculate the length of the string and expand the
|
|
* Struct_size to the next 32-bit boundry.
|
|
*/
|
|
temp8 = (u8) (index + 1);
|
|
struct_size += 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[0] = 0x00;
|
|
}
|
|
|
|
/*
|
|
* Set the Length parameter
|
|
*/
|
|
output_struct->length = struct_size;
|
|
|
|
/*
|
|
* Return the final size of the structure
|
|
*/
|
|
*structure_size = struct_size;
|
|
|
|
return (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 - u32 pointer that is filled with
|
|
* the number of bytes of the
|
|
* Output_buffer used
|
|
*
|
|
* RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
acpi_rs_address32_stream (
|
|
RESOURCE *linked_list,
|
|
u8 **output_buffer,
|
|
u32 *bytes_consumed)
|
|
{
|
|
u8 *buffer;
|
|
u16 *length_field;
|
|
u8 temp8;
|
|
NATIVE_CHAR *temp_pointer;
|
|
|
|
|
|
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 = (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(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 &
|
|
0x0F) << 1;
|
|
}
|
|
|
|
else if (IO_RANGE == linked_list->data.address32.resource_type) {
|
|
temp8 = (u8)
|
|
(linked_list->data.address32.attribute.io.range_attribute &
|
|
0x03);
|
|
}
|
|
|
|
*buffer = temp8;
|
|
buffer += 1;
|
|
|
|
/*
|
|
* Set the address space granularity
|
|
*/
|
|
MOVE_UNALIGNED32_TO_32 (buffer,
|
|
&linked_list->data.address32.granularity);
|
|
buffer += 4;
|
|
|
|
/*
|
|
* Set the address range minimum
|
|
*/
|
|
MOVE_UNALIGNED32_TO_32 (buffer,
|
|
&linked_list->data.address32.min_address_range);
|
|
buffer += 4;
|
|
|
|
/*
|
|
* Set the address range maximum
|
|
*/
|
|
MOVE_UNALIGNED32_TO_32 (buffer,
|
|
&linked_list->data.address32.max_address_range);
|
|
buffer += 4;
|
|
|
|
/*
|
|
* Set the address translation offset
|
|
*/
|
|
MOVE_UNALIGNED32_TO_32 (buffer,
|
|
&linked_list->data.address32.address_translation_offset);
|
|
buffer += 4;
|
|
|
|
/*
|
|
* Set the address length
|
|
*/
|
|
MOVE_UNALIGNED32_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 = (NATIVE_CHAR *) buffer;
|
|
|
|
/*
|
|
* Copy the string
|
|
*/
|
|
STRCPY (temp_pointer, linked_list->data.address32.resource_source);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the sting + one for the
|
|
* terminating null
|
|
*/
|
|
buffer += (STRLEN (linked_list->data.address32.resource_source) + 1);
|
|
}
|
|
|
|
/*
|
|
* Return the number of bytes consumed in this operation
|
|
*/
|
|
*bytes_consumed = (u32) ((NATIVE_UINT) buffer -
|
|
(NATIVE_UINT) *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 (AE_OK);
|
|
}
|
|
|