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https://github.com/reactos/reactos.git
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557 lines
16 KiB
C
557 lines
16 KiB
C
/*******************************************************************************
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*
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* Module Name: rsmem24 - Acpi_rs_memory24_resource
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* Acpi_rs_memory24_stream
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* Acpi_rs_memory32_range_resource
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* Acpi_rs_fixed_memory32_resource
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* Acpi_rs_memory32_range_stream
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* Acpi_rs_fixed_memory32_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 ("rsmemory")
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/*******************************************************************************
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*
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* FUNCTION: Acpi_rs_memory24_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_memory24_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 = 0;
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u8 temp8 = 0;
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u32 struct_size = sizeof (MEMORY24_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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buffer += 2;
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*bytes_consumed = temp16 + 3;
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output_struct->id = memory24;
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/*
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* Check Byte 3 the Read/Write bit
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*/
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temp8 = *buffer;
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buffer += 1;
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output_struct->data.memory24.read_write_attribute = temp8 & 0x01;
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/*
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* Get Min_base_address (Bytes 4-5)
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*/
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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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buffer += 2;
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output_struct->data.memory24.min_base_address = temp16;
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/*
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* Get Max_base_address (Bytes 6-7)
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*/
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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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buffer += 2;
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output_struct->data.memory24.max_base_address = temp16;
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/*
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* Get Alignment (Bytes 8-9)
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*/
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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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buffer += 2;
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output_struct->data.memory24.alignment = temp16;
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/*
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* Get Range_length (Bytes 10-11)
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*/
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MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
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output_struct->data.memory24.range_length = temp16;
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/*
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* Set the Length parameter
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*/
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output_struct->length = struct_size;
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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_memory24_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_memory24_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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u16 temp16 = 0;
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u8 temp8 = 0;
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/*
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* The descriptor field is static
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*/
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*buffer = 0x81;
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buffer += 1;
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/*
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* The length field is static
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*/
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temp16 = 0x09;
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MOVE_UNALIGNED16_TO_16 (buffer, &temp16);
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buffer += 2;
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/*
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* Set the Information Byte
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*/
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temp8 = (u8) (linked_list->data.memory24.read_write_attribute & 0x01);
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*buffer = temp8;
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buffer += 1;
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/*
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* Set the Range minimum base address
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*/
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MOVE_UNALIGNED16_TO_16 (buffer, &linked_list->data.memory24.min_base_address);
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buffer += 2;
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/*
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* Set the Range maximum base address
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*/
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MOVE_UNALIGNED16_TO_16 (buffer, &linked_list->data.memory24.max_base_address);
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buffer += 2;
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/*
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* Set the base alignment
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*/
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MOVE_UNALIGNED16_TO_16 (buffer, &linked_list->data.memory24.alignment);
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buffer += 2;
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/*
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* Set the range length
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*/
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MOVE_UNALIGNED16_TO_16 (buffer, &linked_list->data.memory24.range_length);
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buffer += 2;
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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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*bytes_consumed = (u32) ((NATIVE_UINT) buffer -
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(NATIVE_UINT) *output_buffer);
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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_memory32_range_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_memory32_range_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 = 0;
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u8 temp8 = 0;
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u32 struct_size = sizeof (MEMORY32_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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buffer += 2;
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*bytes_consumed = temp16 + 3;
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output_struct->id = memory32;
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/*
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* Point to the place in the output buffer where the data portion will
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* begin.
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* 1. Set the RESOURCE_DATA * Data to point to it's own address, then
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* 2. Set the pointer to the next address.
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*
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* NOTE: Output_struct->Data is cast to u8, otherwise, this addition adds
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* 4 * sizeof(RESOURCE_DATA) instead of 4 * sizeof(u8)
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*/
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/*
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* Check Byte 3 the Read/Write bit
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*/
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temp8 = *buffer;
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buffer += 1;
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output_struct->data.memory32.read_write_attribute = temp8 & 0x01;
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/*
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* Get Min_base_address (Bytes 4-7)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.memory32.min_base_address,
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buffer);
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buffer += 4;
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/*
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* Get Max_base_address (Bytes 8-11)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.memory32.max_base_address,
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buffer);
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buffer += 4;
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/*
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* Get Alignment (Bytes 12-15)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.memory32.alignment, buffer);
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buffer += 4;
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/*
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* Get Range_length (Bytes 16-19)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.memory32.range_length, buffer);
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/*
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* Set the Length parameter
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*/
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output_struct->length = struct_size;
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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_fixed_memory32_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_fixed_memory32_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 = 0;
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u8 temp8 = 0;
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u32 struct_size = sizeof (FIXED_MEMORY32_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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buffer += 2;
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*bytes_consumed = temp16 + 3;
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output_struct->id = fixed_memory32;
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/*
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* Check Byte 3 the Read/Write bit
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*/
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temp8 = *buffer;
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buffer += 1;
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output_struct->data.fixed_memory32.read_write_attribute = temp8 & 0x01;
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/*
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* Get Range_base_address (Bytes 4-7)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.fixed_memory32.range_base_address,
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buffer);
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buffer += 4;
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/*
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* Get Range_length (Bytes 8-11)
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*/
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MOVE_UNALIGNED32_TO_32 (&output_struct->data.fixed_memory32.range_length,
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buffer);
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/*
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* Set the Length parameter
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*/
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output_struct->length = struct_size;
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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_memory32_range_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_memory32_range_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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u16 temp16 = 0;
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u8 temp8 = 0;
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/*
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* The descriptor field is static
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*/
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*buffer = 0x85;
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buffer += 1;
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/*
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* The length field is static
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*/
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temp16 = 0x11;
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MOVE_UNALIGNED16_TO_16 (buffer, &temp16);
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buffer += 2;
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/*
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* Set the Information Byte
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*/
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temp8 = (u8) (linked_list->data.memory32.read_write_attribute & 0x01);
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*buffer = temp8;
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buffer += 1;
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/*
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* Set the Range minimum base address
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*/
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MOVE_UNALIGNED32_TO_32 (buffer, &linked_list->data.memory32.min_base_address);
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buffer += 4;
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/*
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* Set the Range maximum base address
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*/
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MOVE_UNALIGNED32_TO_32 (buffer, &linked_list->data.memory32.max_base_address);
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buffer += 4;
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/*
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* Set the base alignment
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*/
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MOVE_UNALIGNED32_TO_32 (buffer, &linked_list->data.memory32.alignment);
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buffer += 4;
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/*
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* Set the range length
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*/
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MOVE_UNALIGNED32_TO_32 (buffer, &linked_list->data.memory32.range_length);
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buffer += 4;
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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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*bytes_consumed = (u32) ((NATIVE_UINT) buffer -
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(NATIVE_UINT) *output_buffer);
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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_fixed_memory32_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_fixed_memory32_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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u16 temp16 = 0;
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u8 temp8 = 0;
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/*
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* The descriptor field is static
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*/
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*buffer = 0x86;
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buffer += 1;
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/*
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* The length field is static
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*/
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temp16 = 0x09;
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MOVE_UNALIGNED16_TO_16 (buffer, &temp16);
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buffer += 2;
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/*
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* Set the Information Byte
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*/
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temp8 = (u8) (linked_list->data.fixed_memory32.read_write_attribute & 0x01);
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*buffer = temp8;
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buffer += 1;
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/*
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* Set the Range base address
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*/
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MOVE_UNALIGNED32_TO_32 (buffer,
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&linked_list->data.fixed_memory32.range_base_address);
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buffer += 4;
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/*
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* Set the range length
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*/
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MOVE_UNALIGNED32_TO_32 (buffer,
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&linked_list->data.fixed_memory32.range_length);
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buffer += 4;
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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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*bytes_consumed = (u32) ((NATIVE_UINT) buffer -
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(NATIVE_UINT) *output_buffer);
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return (AE_OK);
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}
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