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|
/*******************************************************************************
*
* Module Name: rsmem24 - Memory resource descriptors
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2005, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include <acpi/acresrc.h>
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsmemory")
/*******************************************************************************
*
* FUNCTION: acpi_rs_memory24_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_memory24_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
u8 ** output_buffer, acpi_size * structure_size)
{
u8 *buffer = byte_stream_buffer;
struct acpi_resource *output_struct = (void *)*output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
acpi_size struct_size =
ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem24);
ACPI_FUNCTION_TRACE("rs_memory24_resource");
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
*bytes_consumed = (acpi_size) temp16 + 3;
output_struct->type = ACPI_RSTYPE_MEM24;
/* Check Byte 3 the Read/Write bit */
temp8 = *buffer;
buffer += 1;
output_struct->data.memory24.read_write_attribute = temp8 & 0x01;
/* Get min_base_address (Bytes 4-5) */
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
output_struct->data.memory24.min_base_address = temp16;
/* Get max_base_address (Bytes 6-7) */
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
output_struct->data.memory24.max_base_address = temp16;
/* Get Alignment (Bytes 8-9) */
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
output_struct->data.memory24.alignment = temp16;
/* Get range_length (Bytes 10-11) */
ACPI_MOVE_16_TO_16(&temp16, buffer);
output_struct->data.memory24.range_length = temp16;
/* 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_memory24_stream
*
* PARAMETERS: Resource - Pointer to the resource linked list
* output_buffer - Pointer to the user's return buffer
* bytes_consumed - Pointer to where the number of bytes
* used in the output_buffer is returned
*
* RETURN: Status
*
* DESCRIPTION: Take the linked list resource structure and fills in the
* the appropriate bytes in a byte stream
*
******************************************************************************/
acpi_status
acpi_rs_memory24_stream(struct acpi_resource *resource,
u8 ** output_buffer, acpi_size * bytes_consumed)
{
u8 *buffer = *output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
ACPI_FUNCTION_TRACE("rs_memory24_stream");
/* The Descriptor Type field is static */
*buffer = ACPI_RDESC_TYPE_MEMORY_24;
buffer += 1;
/* The length field is static */
temp16 = 0x09;
ACPI_MOVE_16_TO_16(buffer, &temp16);
buffer += 2;
/* Set the Information Byte */
temp8 = (u8) (resource->data.memory24.read_write_attribute & 0x01);
*buffer = temp8;
buffer += 1;
/* Set the Range minimum base address */
ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.min_base_address);
buffer += 2;
/* Set the Range maximum base address */
ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.max_base_address);
buffer += 2;
/* Set the base alignment */
ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.alignment);
buffer += 2;
/* Set the range length */
ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.range_length);
buffer += 2;
/* Return the number of bytes consumed in this operation */
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_memory32_range_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_memory32_range_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
u8 ** output_buffer, acpi_size * structure_size)
{
u8 *buffer = byte_stream_buffer;
struct acpi_resource *output_struct = (void *)*output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
acpi_size struct_size =
ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem32);
ACPI_FUNCTION_TRACE("rs_memory32_range_resource");
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
*bytes_consumed = (acpi_size) temp16 + 3;
output_struct->type = ACPI_RSTYPE_MEM32;
/*
* Point to the place in the output buffer where the data portion will
* begin.
* 1. Set the RESOURCE_DATA * Data to point to its own address, then
* 2. Set the pointer to the next address.
*
* NOTE: output_struct->Data is cast to u8, otherwise, this addition adds
* 4 * sizeof(RESOURCE_DATA) instead of 4 * sizeof(u8)
*/
/* Check Byte 3 the Read/Write bit */
temp8 = *buffer;
buffer += 1;
output_struct->data.memory32.read_write_attribute = temp8 & 0x01;
/* Get min_base_address (Bytes 4-7) */
ACPI_MOVE_32_TO_32(&output_struct->data.memory32.min_base_address,
buffer);
buffer += 4;
/* Get max_base_address (Bytes 8-11) */
ACPI_MOVE_32_TO_32(&output_struct->data.memory32.max_base_address,
buffer);
buffer += 4;
/* Get Alignment (Bytes 12-15) */
ACPI_MOVE_32_TO_32(&output_struct->data.memory32.alignment, buffer);
buffer += 4;
/* Get range_length (Bytes 16-19) */
ACPI_MOVE_32_TO_32(&output_struct->data.memory32.range_length, buffer);
/* 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_fixed_memory32_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_fixed_memory32_resource(u8 * byte_stream_buffer,
acpi_size * bytes_consumed,
u8 ** output_buffer, acpi_size * structure_size)
{
u8 *buffer = byte_stream_buffer;
struct acpi_resource *output_struct = (void *)*output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
acpi_size struct_size =
ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_mem32);
ACPI_FUNCTION_TRACE("rs_fixed_memory32_resource");
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
buffer += 2;
*bytes_consumed = (acpi_size) temp16 + 3;
output_struct->type = ACPI_RSTYPE_FIXED_MEM32;
/* Check Byte 3 the Read/Write bit */
temp8 = *buffer;
buffer += 1;
output_struct->data.fixed_memory32.read_write_attribute = temp8 & 0x01;
/* Get range_base_address (Bytes 4-7) */
ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32.
range_base_address, buffer);
buffer += 4;
/* Get range_length (Bytes 8-11) */
ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32.range_length,
buffer);
/* 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_memory32_range_stream
*
* PARAMETERS: Resource - Pointer to the resource linked list
* output_buffer - Pointer to the user's return buffer
* bytes_consumed - Pointer to where the number of bytes
* used in the output_buffer is returned
*
* RETURN: Status
*
* DESCRIPTION: Take the linked list resource structure and fills in the
* the appropriate bytes in a byte stream
*
******************************************************************************/
acpi_status
acpi_rs_memory32_range_stream(struct acpi_resource *resource,
u8 ** output_buffer, acpi_size * bytes_consumed)
{
u8 *buffer = *output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
ACPI_FUNCTION_TRACE("rs_memory32_range_stream");
/* The Descriptor Type field is static */
*buffer = ACPI_RDESC_TYPE_MEMORY_32;
buffer += 1;
/* The length field is static */
temp16 = 0x11;
ACPI_MOVE_16_TO_16(buffer, &temp16);
buffer += 2;
/* Set the Information Byte */
temp8 = (u8) (resource->data.memory32.read_write_attribute & 0x01);
*buffer = temp8;
buffer += 1;
/* Set the Range minimum base address */
ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.min_base_address);
buffer += 4;
/* Set the Range maximum base address */
ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.max_base_address);
buffer += 4;
/* Set the base alignment */
ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.alignment);
buffer += 4;
/* Set the range length */
ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.range_length);
buffer += 4;
/* Return the number of bytes consumed in this operation */
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_fixed_memory32_stream
*
* PARAMETERS: Resource - Pointer to the resource linked list
* output_buffer - Pointer to the user's return buffer
* bytes_consumed - Pointer to where the number of bytes
* used in the output_buffer is returned
*
* RETURN: Status
*
* DESCRIPTION: Take the linked list resource structure and fills in the
* the appropriate bytes in a byte stream
*
******************************************************************************/
acpi_status
acpi_rs_fixed_memory32_stream(struct acpi_resource *resource,
u8 ** output_buffer, acpi_size * bytes_consumed)
{
u8 *buffer = *output_buffer;
u16 temp16 = 0;
u8 temp8 = 0;
ACPI_FUNCTION_TRACE("rs_fixed_memory32_stream");
/* The Descriptor Type field is static */
*buffer = ACPI_RDESC_TYPE_FIXED_MEMORY_32;
buffer += 1;
/* The length field is static */
temp16 = 0x09;
ACPI_MOVE_16_TO_16(buffer, &temp16);
buffer += 2;
/* Set the Information Byte */
temp8 =
(u8) (resource->data.fixed_memory32.read_write_attribute & 0x01);
*buffer = temp8;
buffer += 1;
/* Set the Range base address */
ACPI_MOVE_32_TO_32(buffer,
&resource->data.fixed_memory32.range_base_address);
buffer += 4;
/* Set the range length */
ACPI_MOVE_32_TO_32(buffer, &resource->data.fixed_memory32.range_length);
buffer += 4;
/* Return the number of bytes consumed in this operation */
*bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
return_ACPI_STATUS(AE_OK);
}
|
