rsaddr.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:30k
- /*******************************************************************************
- *
- * Module Name: rsaddr - Address resource descriptors (16/32/64)
- * $Revision: 19 $
- *
- ******************************************************************************/
- /*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include "acpi.h"
- #include "acresrc.h"
- #define _COMPONENT ACPI_RESOURCES
- MODULE_NAME ("rsaddr")
- /*******************************************************************************
- *
- * FUNCTION: Acpi_rs_address16_resource
- *
- * PARAMETERS: Byte_stream_buffer - Pointer to the resource input byte
- * stream
- * Bytes_consumed - u32 pointer that is filled with
- * the number of bytes consumed from
- * the Byte_stream_buffer
- * Output_buffer - Pointer to the user's return buffer
- * Structure_size - u32 pointer that is filled with
- * the number of bytes in the filled
- * in structure
- *
- * 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_address16_resource (
- u8 *byte_stream_buffer,
- u32 *bytes_consumed,
- u8 **output_buffer,
- u32 *structure_size)
- {
- u8 *buffer = byte_stream_buffer;
- acpi_resource *output_struct = (acpi_resource *) *output_buffer;
- NATIVE_CHAR *temp_ptr;
- u32 struct_size = SIZEOF_RESOURCE (acpi_resource_address16);
- u32 index;
- u16 temp16;
- u8 temp8;
- FUNCTION_TRACE ("Rs_address16_resource");
- /*
- * Point past the Descriptor to get the number of bytes consumed
- */
- buffer += 1;
- MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
- *bytes_consumed = temp16 + 3;
- output_struct->id = ACPI_RSTYPE_ADDRESS16;
- /*
- * Get the Resource Type (Byte3)
- */
- buffer += 2;
- temp8 = *buffer;
- /* Values 0-2 are valid */
- if (temp8 > 2) {
- return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
- }
- output_struct->data.address16.resource_type = temp8 & 0x03;
- /*
- * Get the General Flags (Byte4)
- */
- buffer += 1;
- temp8 = *buffer;
- /*
- * Producer / Consumer
- */
- output_struct->data.address16.producer_consumer = temp8 & 0x01;
- /*
- * Decode
- */
- output_struct->data.address16.decode = (temp8 >> 1) & 0x01;
- /*
- * Min Address Fixed
- */
- output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01;
- /*
- * Max Address Fixed
- */
- output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01;
- /*
- * Get the Type Specific Flags (Byte5)
- */
- buffer += 1;
- temp8 = *buffer;
- if (MEMORY_RANGE == output_struct->data.address16.resource_type) {
- output_struct->data.address16.attribute.memory.read_write_attribute =
- (u16) (temp8 & 0x01);
- output_struct->data.address16.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x0F);
- }
- else {
- if (IO_RANGE == output_struct->data.address16.resource_type) {
- output_struct->data.address16.attribute.io.range_attribute =
- (u16) (temp8 & 0x03);
- }
- else {
- /* BUS_NUMBER_RANGE == Address16.Data->Resource_type */
- /* Nothing needs to be filled in */
- }
- }
- /*
- * Get Granularity (Bytes 6-7)
- */
- buffer += 1;
- MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.granularity,
- buffer);
- /*
- * Get Min_address_range (Bytes 8-9)
- */
- buffer += 2;
- MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.min_address_range,
- buffer);
- /*
- * Get Max_address_range (Bytes 10-11)
- */
- buffer += 2;
- MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.max_address_range,
- buffer);
- /*
- * Get Address_translation_offset (Bytes 12-13)
- */
- buffer += 2;
- MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.address_translation_offset,
- buffer);
- /*
- * Get Address_length (Bytes 14-15)
- */
- buffer += 2;
- MOVE_UNALIGNED16_TO_16 (&output_struct->data.address16.address_length,
- buffer);
- /*
- * Resource Source Index (if present)
- */
- buffer += 2;
- /*
- * This will leave us pointing to the Resource Source Index
- * 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 > 16) {
- /* Dereference the Index */
- temp8 = *buffer;
- output_struct->data.address16.resource_source.index = (u32) temp8;
- /* Point to the String */
- buffer += 1;
- /* Point the String pointer to the end of this structure */
- output_struct->data.address16.resource_source.string_ptr =
- (NATIVE_CHAR *)((u8 * )output_struct + struct_size);
- temp_ptr = output_struct->data.address16.resource_source.string_ptr;
- /* Copy the string into the buffer */
- index = 0;
- while (0x00 != *buffer) {
- *temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
- }
- /*
- * Add the terminating null
- */
- *temp_ptr = 0x00;
- output_struct->data.address16.resource_source.string_length = index + 1;
- /*
- * In order for the Struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * Struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ROUND_UP_TO_32_bITS (temp8);
- }
- else {
- output_struct->data.address16.resource_source.index = 0x00;
- output_struct->data.address16.resource_source.string_length = 0;
- output_struct->data.address16.resource_source.string_ptr = NULL;
- }
- /*
- * Set the Length parameter
- */
- output_struct->length = struct_size;
- /*
- * Return the final size of the structure
- */
- *structure_size = struct_size;
- return_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_rs_address16_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
- *
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
- *
- ******************************************************************************/
- acpi_status
- acpi_rs_address16_stream (
- acpi_resource *linked_list,
- u8 **output_buffer,
- u32 *bytes_consumed)
- {
- u8 *buffer = *output_buffer;
- u8 *length_field;
- u8 temp8;
- NATIVE_CHAR *temp_pointer = NULL;
- u32 actual_bytes;
- FUNCTION_TRACE ("Rs_address16_stream");
- /*
- * The descriptor field is static
- */
- *buffer = 0x88;
- buffer += 1;
- /*
- * Save a pointer to the Length field - to be filled in later
- */
- length_field = buffer;
- buffer += 2;
- /*
- * Set the Resource Type (Memory, Io, Bus_number)
- */
- temp8 = (u8) (linked_list->data.address16.resource_type & 0x03);
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the general flags
- */
- temp8 = (u8) (linked_list->data.address16.producer_consumer & 0x01);
- temp8 |= (linked_list->data.address16.decode & 0x01) << 1;
- temp8 |= (linked_list->data.address16.min_address_fixed & 0x01) << 2;
- temp8 |= (linked_list->data.address16.max_address_fixed & 0x01) << 3;
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the type specific flags
- */
- temp8 = 0;
- if (MEMORY_RANGE == linked_list->data.address16.resource_type) {
- temp8 = (u8)
- (linked_list->data.address16.attribute.memory.read_write_attribute &
- 0x01);
- temp8 |=
- (linked_list->data.address16.attribute.memory.cache_attribute &
- 0x0F) << 1;
- }
- else if (IO_RANGE == linked_list->data.address16.resource_type) {
- temp8 = (u8)
- (linked_list->data.address16.attribute.io.range_attribute &
- 0x03);
- }
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the address space granularity
- */
- MOVE_UNALIGNED16_TO_16 (buffer,
- &linked_list->data.address16.granularity);
- buffer += 2;
- /*
- * Set the address range minimum
- */
- MOVE_UNALIGNED16_TO_16 (buffer,
- &linked_list->data.address16.min_address_range);
- buffer += 2;
- /*
- * Set the address range maximum
- */
- MOVE_UNALIGNED16_TO_16 (buffer,
- &linked_list->data.address16.max_address_range);
- buffer += 2;
- /*
- * Set the address translation offset
- */
- MOVE_UNALIGNED16_TO_16 (buffer,
- &linked_list->data.address16.address_translation_offset);
- buffer += 2;
- /*
- * Set the address length
- */
- MOVE_UNALIGNED16_TO_16 (buffer,
- &linked_list->data.address16.address_length);
- buffer += 2;
- /*
- * Resource Source Index and Resource Source are optional
- */
- if (0 != linked_list->data.address16.resource_source.string_length) {
- temp8 = (u8) linked_list->data.address16.resource_source.index;
- *buffer = temp8;
- buffer += 1;
- temp_pointer = (NATIVE_CHAR *) buffer;
- /*
- * Copy the string
- */
- STRCPY (temp_pointer,
- linked_list->data.address16.resource_source.string_ptr);
- /*
- * Buffer needs to be set to the length of the sting + one for the
- * terminating null
- */
- buffer += (STRLEN (linked_list->data.address16.resource_source.string_ptr)
- + 1);
- }
- /*
- * Return the number of bytes consumed in this operation
- */
- actual_bytes = POINTER_DIFF (buffer, *output_buffer);
- *bytes_consumed = actual_bytes;
- /*
- * Set the length field to the number of bytes consumed
- * minus the header size (3 bytes)
- */
- actual_bytes -= 3;
- MOVE_UNALIGNED16_TO_16 (length_field, &actual_bytes);
- return_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_rs_address32_resource
- *
- * PARAMETERS: Byte_stream_buffer - Pointer to the resource input byte
- * stream
- * Bytes_consumed - u32 pointer that is filled with
- * the number of bytes consumed from
- * the Byte_stream_buffer
- * Output_buffer - Pointer to the user's return buffer
- * Structure_size - u32 pointer that is filled with
- * the number of bytes in the filled
- * in structure
- *
- * 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_address32_resource (
- u8 *byte_stream_buffer,
- u32 *bytes_consumed,
- u8 **output_buffer,
- u32 *structure_size)
- {
- u8 *buffer;
- acpi_resource *output_struct;
- u16 temp16;
- u8 temp8;
- NATIVE_CHAR *temp_ptr;
- u32 struct_size;
- u32 index;
- FUNCTION_TRACE ("Rs_address32_resource");
- buffer = byte_stream_buffer;
- output_struct = (acpi_resource *) *output_buffer;
- struct_size = SIZEOF_RESOURCE (acpi_resource_address32);
- /*
- * Point past the Descriptor to get the number of bytes consumed
- */
- buffer += 1;
- MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
- *bytes_consumed = temp16 + 3;
- output_struct->id = ACPI_RSTYPE_ADDRESS32;
- /*
- * Get the Resource Type (Byte3)
- */
- buffer += 2;
- temp8 = *buffer;
- /* Values 0-2 are valid */
- if(temp8 > 2) {
- return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
- }
- output_struct->data.address32.resource_type = temp8 & 0x03;
- /*
- * Get the General Flags (Byte4)
- */
- buffer += 1;
- temp8 = *buffer;
- /*
- * Producer / Consumer
- */
- output_struct->data.address32.producer_consumer = temp8 & 0x01;
- /*
- * Decode
- */
- output_struct->data.address32.decode = (temp8 >> 1) & 0x01;
- /*
- * Min Address Fixed
- */
- output_struct->data.address32.min_address_fixed = (temp8 >> 2) & 0x01;
- /*
- * Max Address Fixed
- */
- output_struct->data.address32.max_address_fixed = (temp8 >> 3) & 0x01;
- /*
- * Get the Type Specific Flags (Byte5)
- */
- buffer += 1;
- temp8 = *buffer;
- if (MEMORY_RANGE == output_struct->data.address32.resource_type) {
- output_struct->data.address32.attribute.memory.read_write_attribute =
- (u16) (temp8 & 0x01);
- output_struct->data.address32.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x0F);
- }
- else {
- if (IO_RANGE == output_struct->data.address32.resource_type) {
- output_struct->data.address32.attribute.io.range_attribute =
- (u16) (temp8 & 0x03);
- }
- else {
- /* BUS_NUMBER_RANGE == Output_struct->Data.Address32.Resource_type */
- /* Nothing needs to be filled in */
- }
- }
- /*
- * Get Granularity (Bytes 6-9)
- */
- buffer += 1;
- MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.granularity,
- buffer);
- /*
- * Get Min_address_range (Bytes 10-13)
- */
- buffer += 4;
- MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.min_address_range,
- buffer);
- /*
- * Get Max_address_range (Bytes 14-17)
- */
- buffer += 4;
- MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.max_address_range,
- buffer);
- /*
- * Get Address_translation_offset (Bytes 18-21)
- */
- buffer += 4;
- MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.address_translation_offset,
- buffer);
- /*
- * Get Address_length (Bytes 22-25)
- */
- buffer += 4;
- MOVE_UNALIGNED32_TO_32 (&output_struct->data.address32.address_length,
- buffer);
- /*
- * Resource Source Index (if present)
- */
- buffer += 4;
- /*
- * This will leave us pointing to the Resource Source Index
- * If it is present, then save it off and calculate the
- * pointer to where the null terminated string goes:
- */
- if (*bytes_consumed > 26) {
- /* Dereference the Index */
- temp8 = *buffer;
- output_struct->data.address32.resource_source.index =
- (u32) temp8;
- /* Point to the String */
- buffer += 1;
- /* Point the String pointer to the end of this structure */
- output_struct->data.address32.resource_source.string_ptr =
- (NATIVE_CHAR *)((u8 *)output_struct + struct_size);
- temp_ptr = output_struct->data.address32.resource_source.string_ptr;
- /* Copy the string into the buffer */
- index = 0;
- while (0x00 != *buffer) {
- *temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
- }
- /*
- * Add the terminating null
- */
- *temp_ptr = 0x00;
- output_struct->data.address32.resource_source.string_length = index + 1;
- /*
- * In order for the Struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * Struct_size to the next 32-bit boundary.
- */
- 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.string_ptr = NULL;
- }
- /*
- * Set the Length parameter
- */
- output_struct->length = struct_size;
- /*
- * Return the final size of the structure
- */
- *structure_size = struct_size;
- return_ACPI_STATUS (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
- *
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
- *
- ******************************************************************************/
- acpi_status
- acpi_rs_address32_stream (
- acpi_resource *linked_list,
- u8 **output_buffer,
- u32 *bytes_consumed)
- {
- u8 *buffer;
- u16 *length_field;
- u8 temp8;
- NATIVE_CHAR *temp_pointer;
- FUNCTION_TRACE ("Rs_address32_stream");
- 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.string_ptr);
- /*
- * Buffer needs to be set to the length of the sting + one for the
- * terminating null
- */
- buffer += (STRLEN (linked_list->data.address32.resource_source.string_ptr) + 1);
- }
- /*
- * Return the number of bytes consumed in this operation
- */
- *bytes_consumed = POINTER_DIFF (buffer, *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_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_rs_address64_resource
- *
- * PARAMETERS: Byte_stream_buffer - Pointer to the resource input byte
- * stream
- * Bytes_consumed - u32 pointer that is filled with
- * the number of bytes consumed from
- * the Byte_stream_buffer
- * Output_buffer - Pointer to the user's return buffer
- * Structure_size - u32 pointer that is filled with
- * the number of bytes in the filled
- * in structure
- *
- * 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_address64_resource (
- u8 *byte_stream_buffer,
- u32 *bytes_consumed,
- u8 **output_buffer,
- u32 *structure_size)
- {
- u8 *buffer;
- acpi_resource *output_struct;
- u16 temp16;
- u8 temp8;
- NATIVE_CHAR *temp_ptr;
- u32 struct_size;
- u32 index;
- FUNCTION_TRACE ("Rs_address64_resource");
- buffer = byte_stream_buffer;
- output_struct = (acpi_resource *) *output_buffer;
- struct_size = SIZEOF_RESOURCE (acpi_resource_address64);
- /*
- * Point past the Descriptor to get the number of bytes consumed
- */
- buffer += 1;
- MOVE_UNALIGNED16_TO_16 (&temp16, buffer);
- *bytes_consumed = temp16 + 3;
- output_struct->id = ACPI_RSTYPE_ADDRESS64;
- /*
- * Get the Resource Type (Byte3)
- */
- buffer += 2;
- temp8 = *buffer;
- /* Values 0-2 are valid */
- if(temp8 > 2) {
- return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
- }
- output_struct->data.address64.resource_type = temp8 & 0x03;
- /*
- * Get the General Flags (Byte4)
- */
- buffer += 1;
- temp8 = *buffer;
- /*
- * Producer / Consumer
- */
- output_struct->data.address64.producer_consumer = temp8 & 0x01;
- /*
- * Decode
- */
- output_struct->data.address64.decode = (temp8 >> 1) & 0x01;
- /*
- * Min Address Fixed
- */
- output_struct->data.address64.min_address_fixed = (temp8 >> 2) & 0x01;
- /*
- * Max Address Fixed
- */
- output_struct->data.address64.max_address_fixed = (temp8 >> 3) & 0x01;
- /*
- * Get the Type Specific Flags (Byte5)
- */
- buffer += 1;
- temp8 = *buffer;
- if (MEMORY_RANGE == output_struct->data.address64.resource_type) {
- output_struct->data.address64.attribute.memory.read_write_attribute =
- (u16) (temp8 & 0x01);
- output_struct->data.address64.attribute.memory.cache_attribute =
- (u16) ((temp8 >> 1) & 0x0F);
- }
- else {
- if (IO_RANGE == output_struct->data.address64.resource_type) {
- output_struct->data.address64.attribute.io.range_attribute =
- (u16) (temp8 & 0x03);
- }
- else {
- /* BUS_NUMBER_RANGE == Output_struct->Data.Address64.Resource_type */
- /* Nothing needs to be filled in */
- }
- }
- /*
- * Get Granularity (Bytes 6-13)
- */
- buffer += 1;
- MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.granularity,
- buffer);
- /*
- * Get Min_address_range (Bytes 14-21)
- */
- buffer += 8;
- MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.min_address_range,
- buffer);
- /*
- * Get Max_address_range (Bytes 22-29)
- */
- buffer += 8;
- MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.max_address_range,
- buffer);
- /*
- * Get Address_translation_offset (Bytes 30-37)
- */
- buffer += 8;
- MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.address_translation_offset,
- buffer);
- /*
- * Get Address_length (Bytes 38-45)
- */
- buffer += 8;
- MOVE_UNALIGNED64_TO_64 (&output_struct->data.address64.address_length,
- buffer);
- /*
- * Resource Source Index (if present)
- */
- buffer += 8;
- /*
- * This will leave us pointing to the Resource Source Index
- * 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 > 46) {
- /* Dereference the Index */
- temp8 = *buffer;
- output_struct->data.address64.resource_source.index =
- (u32) temp8;
- /* Point to the String */
- buffer += 1;
- /* Point the String pointer to the end of this structure */
- output_struct->data.address64.resource_source.string_ptr =
- (NATIVE_CHAR *)((u8 *)output_struct + struct_size);
- temp_ptr = output_struct->data.address64.resource_source.string_ptr;
- /* Copy the string into the buffer */
- index = 0;
- while (0x00 != *buffer) {
- *temp_ptr = *buffer;
- temp_ptr += 1;
- buffer += 1;
- index += 1;
- }
- /*
- * Add the terminating null
- */
- *temp_ptr = 0x00;
- output_struct->data.address64.resource_source.string_length = index + 1;
- /*
- * In order for the Struct_size to fall on a 32-bit boundary,
- * calculate the length of the string and expand the
- * Struct_size to the next 32-bit boundary.
- */
- temp8 = (u8) (index + 1);
- struct_size += ROUND_UP_TO_32_bITS (temp8);
- }
- else {
- output_struct->data.address64.resource_source.index = 0x00;
- output_struct->data.address64.resource_source.string_length = 0;
- output_struct->data.address64.resource_source.string_ptr = NULL;
- }
- /*
- * Set the Length parameter
- */
- output_struct->length = struct_size;
- /*
- * Return the final size of the structure
- */
- *structure_size = struct_size;
- return_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_rs_address64_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
- *
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
- *
- ******************************************************************************/
- acpi_status
- acpi_rs_address64_stream (
- acpi_resource *linked_list,
- u8 **output_buffer,
- u32 *bytes_consumed)
- {
- u8 *buffer;
- u16 *length_field;
- u8 temp8;
- NATIVE_CHAR *temp_pointer;
- FUNCTION_TRACE ("Rs_address64_stream");
- buffer = *output_buffer;
- /*
- * The descriptor field is static
- */
- *buffer = 0x8A;
- 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.address64.resource_type & 0x03);
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the general flags
- */
- temp8 = (u8) (linked_list->data.address64.producer_consumer & 0x01);
- temp8 |= (linked_list->data.address64.decode & 0x01) << 1;
- temp8 |= (linked_list->data.address64.min_address_fixed & 0x01) << 2;
- temp8 |= (linked_list->data.address64.max_address_fixed & 0x01) << 3;
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the type specific flags
- */
- temp8 = 0;
- if(MEMORY_RANGE == linked_list->data.address64.resource_type) {
- temp8 = (u8)
- (linked_list->data.address64.attribute.memory.read_write_attribute &
- 0x01);
- temp8 |=
- (linked_list->data.address64.attribute.memory.cache_attribute &
- 0x0F) << 1;
- }
- else if (IO_RANGE == linked_list->data.address64.resource_type) {
- temp8 = (u8)
- (linked_list->data.address64.attribute.io.range_attribute &
- 0x03);
- }
- *buffer = temp8;
- buffer += 1;
- /*
- * Set the address space granularity
- */
- MOVE_UNALIGNED64_TO_64 (buffer,
- &linked_list->data.address64.granularity);
- buffer += 8;
- /*
- * Set the address range minimum
- */
- MOVE_UNALIGNED64_TO_64 (buffer,
- &linked_list->data.address64.min_address_range);
- buffer += 8;
- /*
- * Set the address range maximum
- */
- MOVE_UNALIGNED64_TO_64 (buffer,
- &linked_list->data.address64.max_address_range);
- buffer += 8;
- /*
- * Set the address translation offset
- */
- MOVE_UNALIGNED64_TO_64 (buffer,
- &linked_list->data.address64.address_translation_offset);
- buffer += 8;
- /*
- * Set the address length
- */
- MOVE_UNALIGNED64_TO_64 (buffer,
- &linked_list->data.address64.address_length);
- buffer += 8;
- /*
- * Resource Source Index and Resource Source are optional
- */
- if (0 != linked_list->data.address64.resource_source.string_length) {
- temp8 = (u8) linked_list->data.address64.resource_source.index;
- *buffer = temp8;
- buffer += 1;
- temp_pointer = (NATIVE_CHAR *) buffer;
- /*
- * Copy the string
- */
- STRCPY (temp_pointer, linked_list->data.address64.resource_source.string_ptr);
- /*
- * Buffer needs to be set to the length of the sting + one for the
- * terminating null
- */
- buffer += (STRLEN (linked_list->data.address64.resource_source.string_ptr) + 1);
- }
- /*
- * Return the number of bytes consumed in this operation
- */
- *bytes_consumed = POINTER_DIFF (buffer, *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_ACPI_STATUS (AE_OK);
- }