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path: root/drivers/acpi/resources/rsmemory.c
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Diffstat (limited to 'drivers/acpi/resources/rsmemory.c')
-rw-r--r--drivers/acpi/resources/rsmemory.c566
1 files changed, 566 insertions, 0 deletions
diff --git a/drivers/acpi/resources/rsmemory.c b/drivers/acpi/resources/rsmemory.c
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index 00000000000..7c935aecf07
--- /dev/null
+++ b/drivers/acpi/resources/rsmemory.c
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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->id = 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: linked_list - Pointer to the resource linked list
+ * output_buffer - Pointer to the user's return buffer
+ * bytes_consumed - Pointer to where the number of bytes
+ * used in the output_buffer is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_memory24_stream (
+ struct acpi_resource *linked_list,
+ 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 field is static
+ */
+ *buffer = 0x81;
+ buffer += 1;
+
+ /*
+ * The length field is static
+ */
+ temp16 = 0x09;
+ ACPI_MOVE_16_TO_16 (buffer, &temp16);
+ buffer += 2;
+
+ /*
+ * Set the Information Byte
+ */
+ temp8 = (u8) (linked_list->data.memory24.read_write_attribute & 0x01);
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the Range minimum base address
+ */
+ ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.memory24.min_base_address);
+ buffer += 2;
+
+ /*
+ * Set the Range maximum base address
+ */
+ ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.memory24.max_base_address);
+ buffer += 2;
+
+ /*
+ * Set the base alignment
+ */
+ ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.memory24.alignment);
+ buffer += 2;
+
+ /*
+ * Set the range length
+ */
+ ACPI_MOVE_32_TO_16 (buffer, &linked_list->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->id = 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->id = 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: linked_list - Pointer to the resource linked list
+ * output_buffer - Pointer to the user's return buffer
+ * bytes_consumed - Pointer to where the number of bytes
+ * used in the output_buffer is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_memory32_range_stream (
+ struct acpi_resource *linked_list,
+ 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 field is static
+ */
+ *buffer = 0x85;
+ buffer += 1;
+
+ /*
+ * The length field is static
+ */
+ temp16 = 0x11;
+
+ ACPI_MOVE_16_TO_16 (buffer, &temp16);
+ buffer += 2;
+
+ /*
+ * Set the Information Byte
+ */
+ temp8 = (u8) (linked_list->data.memory32.read_write_attribute & 0x01);
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the Range minimum base address
+ */
+ ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.memory32.min_base_address);
+ buffer += 4;
+
+ /*
+ * Set the Range maximum base address
+ */
+ ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.memory32.max_base_address);
+ buffer += 4;
+
+ /*
+ * Set the base alignment
+ */
+ ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.memory32.alignment);
+ buffer += 4;
+
+ /*
+ * Set the range length
+ */
+ ACPI_MOVE_32_TO_32 (buffer, &linked_list->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: linked_list - Pointer to the resource linked list
+ * output_buffer - Pointer to the user's return buffer
+ * bytes_consumed - Pointer to where the number of bytes
+ * used in the output_buffer is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Take the linked list resource structure and fills in the
+ * the appropriate bytes in a byte stream
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_fixed_memory32_stream (
+ struct acpi_resource *linked_list,
+ 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 field is static
+ */
+ *buffer = 0x86;
+ buffer += 1;
+
+ /*
+ * The length field is static
+ */
+ temp16 = 0x09;
+
+ ACPI_MOVE_16_TO_16 (buffer, &temp16);
+ buffer += 2;
+
+ /*
+ * Set the Information Byte
+ */
+ temp8 = (u8) (linked_list->data.fixed_memory32.read_write_attribute & 0x01);
+ *buffer = temp8;
+ buffer += 1;
+
+ /*
+ * Set the Range base address
+ */
+ ACPI_MOVE_32_TO_32 (buffer,
+ &linked_list->data.fixed_memory32.range_base_address);
+ buffer += 4;
+
+ /*
+ * Set the range length
+ */
+ ACPI_MOVE_32_TO_32 (buffer,
+ &linked_list->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);
+}
+