diff options
Diffstat (limited to 'drivers/acpi/resources/rsmemory.c')
| -rw-r--r-- | drivers/acpi/resources/rsmemory.c | 566 |
1 files changed, 566 insertions, 0 deletions
diff --git a/drivers/acpi/resources/rsmemory.c b/drivers/acpi/resources/rsmemory.c new file mode 100644 index 000000000000..7c935aecf075 --- /dev/null +++ b/drivers/acpi/resources/rsmemory.c @@ -0,0 +1,566 @@ +/******************************************************************************* + * + * 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); +} + |