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android_kernel_motorola_sm6225/drivers/acpi/resources/rsaddr.c
Robert Moore 44f6c01242 ACPICA 20050408 from Bob Moore 
Fixed three cases in the interpreter where an "index"
argument to an ASL function was still (internally) 32
bits instead of the required 64 bits.  This was the Index
argument to the Index, Mid, and Match operators.

The "strupr" function is now permanently local
(acpi_ut_strupr), since this is not a POSIX-defined
function and not present in most kernel-level C
libraries. References to the C library strupr function
have been removed from the headers.

Completed the deployment of static
functions/prototypes. All prototypes with the static
attribute have been moved from the headers to the owning
C file.

ACPICA 20050329 from Bob Moore

An error is now generated if an attempt is made to create
a Buffer Field of length zero (A CreateField with a length
operand of zero.)

The interpreter now issues a warning whenever executable
code at the module level is detected during ACPI table
load. This will give some idea of the prevalence of this
type of code.

Implemented support for references to named objects (other
than control methods) within package objects.

Enhanced package object output for the debug
object. Package objects are now completely dumped, showing
all elements.

Enhanced miscellaneous object output for the debug
object. Any object can now be written to the debug object
(for example, a device object can be written, and the type
of the object will be displayed.)

The "static" qualifier has been added to all local
functions across the core subsystem.

The number of "long" lines (> 80 chars) within the source
has been significantly reduced, by about 1/3.

Cleaned up all header files to ensure that all CA/iASL
functions are prototyped (even static functions) and the
formatting is consistent.

Two new header files have been added, acopcode.h and
acnames.h.

Removed several obsolete functions that were no longer
used.

Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:08:52 -04:00

1157 lines
32 KiB
C
Raw Blame History

/*******************************************************************************
*
* Module Name: rsaddr - Address resource descriptors (16/32/64)
*
******************************************************************************/
/*
* 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 ("rsaddr")
/*******************************************************************************
*
* FUNCTION: acpi_rs_address16_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_address16_resource (
u8 *byte_stream_buffer,
acpi_size *bytes_consumed,
u8 **output_buffer,
acpi_size *structure_size)
{
u32 index;
u16 temp16;
u8 temp8;
u8 *temp_ptr;
u8 *buffer = byte_stream_buffer;
struct acpi_resource *output_struct = (void *) *output_buffer;
acpi_size struct_size = ACPI_SIZEOF_RESOURCE (
struct acpi_resource_address16);
ACPI_FUNCTION_TRACE ("rs_address16_resource");
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16 (&temp16, buffer);
/* Validate minimum descriptor length */
if (temp16 < 13) {
return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
}
*bytes_consumed = temp16 + 3;
output_struct->id = ACPI_RSTYPE_ADDRESS16;
/* Get the Resource Type (Byte3) */
buffer += 2;
temp8 = *buffer;
/* Values 0-2 and 0xC0-0xFF are valid */
if ((temp8 > 2) && (temp8 < 0xC0)) {
return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
}
output_struct->data.address16.resource_type = temp8;
/* 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 (ACPI_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) & 0x03);
}
else {
if (ACPI_IO_RANGE == output_struct->data.address16.resource_type) {
output_struct->data.address16.attribute.io.range_attribute =
(u16) (temp8 & 0x03);
output_struct->data.address16.attribute.io.translation_attribute =
(u16) ((temp8 >> 4) & 0x03);
}
else {
/* BUS_NUMBER_RANGE == Address16.Data->resource_type */
/* Nothing needs to be filled in */
}
}
/* Get Granularity (Bytes 6-7) */
buffer += 1;
ACPI_MOVE_16_TO_32 (&output_struct->data.address16.granularity, buffer);
/* Get min_address_range (Bytes 8-9) */
buffer += 2;
ACPI_MOVE_16_TO_32 (&output_struct->data.address16.min_address_range, buffer);
/* Get max_address_range (Bytes 10-11) */
buffer += 2;
ACPI_MOVE_16_TO_32 (&output_struct->data.address16.max_address_range, buffer);
/* Get address_translation_offset (Bytes 12-13) */
buffer += 2;
ACPI_MOVE_16_TO_32 (&output_struct->data.address16.address_translation_offset,
buffer);
/* Get address_length (Bytes 14-15) */
buffer += 2;
ACPI_MOVE_16_TO_32 (&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.
*
* Note: Some resource descriptors will have an additional null, so
* we add 1 to the length.
*/
if (*bytes_consumed > (16 + 1)) {
/* 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 =
(char *)((u8 * )output_struct + struct_size);
temp_ptr = (u8 *)
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 += ACPI_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 = (u32) 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 - 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_address16_stream (
struct acpi_resource *linked_list,
u8 **output_buffer,
acpi_size *bytes_consumed)
{
u8 *buffer = *output_buffer;
u8 *length_field;
u8 temp8;
char *temp_pointer = NULL;
acpi_size actual_bytes;
ACPI_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 (ACPI_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 &
0x03) << 1;
}
else if (ACPI_IO_RANGE == linked_list->data.address16.resource_type) {
temp8 = (u8)
(linked_list->data.address16.attribute.io.range_attribute &
0x03);
temp8 |=
(linked_list->data.address16.attribute.io.translation_attribute &
0x03) << 4;
}
*buffer = temp8;
buffer += 1;
/* Set the address space granularity */
ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.granularity);
buffer += 2;
/* Set the address range minimum */
ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.min_address_range);
buffer += 2;
/* Set the address range maximum */
ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.max_address_range);
buffer += 2;
/* Set the address translation offset */
ACPI_MOVE_32_TO_16 (buffer,
&linked_list->data.address16.address_translation_offset);
buffer += 2;
/* Set the address length */
ACPI_MOVE_32_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 = (char *) buffer;
/* Copy the string */
ACPI_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 += (acpi_size)(ACPI_STRLEN (
linked_list->data.address16.resource_source.string_ptr) + 1);
}
/* Return the number of bytes consumed in this operation */
actual_bytes = ACPI_PTR_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;
ACPI_MOVE_SIZE_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 - 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_address32_resource (
u8 *byte_stream_buffer,
acpi_size *bytes_consumed,
u8 **output_buffer,
acpi_size *structure_size)
{
u8 *buffer;
struct acpi_resource *output_struct= (void *) *output_buffer;
u16 temp16;
u8 temp8;
u8 *temp_ptr;
acpi_size struct_size;
u32 index;
ACPI_FUNCTION_TRACE ("rs_address32_resource");
buffer = byte_stream_buffer;
struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32);
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16 (&temp16, buffer);
/* Validate minimum descriptor length */
if (temp16 < 23) {
return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
}
*bytes_consumed = temp16 + 3;
output_struct->id = ACPI_RSTYPE_ADDRESS32;
/* Get the Resource Type (Byte3) */
buffer += 2;
temp8 = *buffer;
/* Values 0-2 and 0xC0-0xFF are valid */
if ((temp8 > 2) && (temp8 < 0xC0)) {
return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
}
output_struct->data.address32.resource_type = temp8;
/* 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 (ACPI_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) & 0x03);
}
else {
if (ACPI_IO_RANGE == output_struct->data.address32.resource_type) {
output_struct->data.address32.attribute.io.range_attribute =
(u16) (temp8 & 0x03);
output_struct->data.address32.attribute.io.translation_attribute =
(u16) ((temp8 >> 4) & 0x03);
}
else {
/* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */
/* Nothing needs to be filled in */
}
}
/* Get Granularity (Bytes 6-9) */
buffer += 1;
ACPI_MOVE_32_TO_32 (&output_struct->data.address32.granularity, buffer);
/* Get min_address_range (Bytes 10-13) */
buffer += 4;
ACPI_MOVE_32_TO_32 (&output_struct->data.address32.min_address_range, buffer);
/* Get max_address_range (Bytes 14-17) */
buffer += 4;
ACPI_MOVE_32_TO_32 (&output_struct->data.address32.max_address_range, buffer);
/* Get address_translation_offset (Bytes 18-21) */
buffer += 4;
ACPI_MOVE_32_TO_32 (&output_struct->data.address32.address_translation_offset,
buffer);
/* Get address_length (Bytes 22-25) */
buffer += 4;
ACPI_MOVE_32_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:
*
* Note: Some resource descriptors will have an additional null, so
* we add 1 to the length.
*/
if (*bytes_consumed > (26 + 1)) {
/* 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 =
(char *)((u8 *)output_struct + struct_size);
temp_ptr = (u8 *)
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 += ACPI_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 = (u32) 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 - 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_address32_stream (
struct acpi_resource *linked_list,
u8 **output_buffer,
acpi_size *bytes_consumed)
{
u8 *buffer;
u16 *length_field;
u8 temp8;
char *temp_pointer;
ACPI_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 = ACPI_CAST_PTR (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 (ACPI_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 &
0x03) << 1;
}
else if (ACPI_IO_RANGE == linked_list->data.address32.resource_type) {
temp8 = (u8)
(linked_list->data.address32.attribute.io.range_attribute &
0x03);
temp8 |=
(linked_list->data.address32.attribute.io.translation_attribute &
0x03) << 4;
}
*buffer = temp8;
buffer += 1;
/* Set the address space granularity */
ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.granularity);
buffer += 4;
/* Set the address range minimum */
ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.min_address_range);
buffer += 4;
/* Set the address range maximum */
ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.max_address_range);
buffer += 4;
/* Set the address translation offset */
ACPI_MOVE_32_TO_32 (buffer,
&linked_list->data.address32.address_translation_offset);
buffer += 4;
/* Set the address length */
ACPI_MOVE_32_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 = (char *) buffer;
/* Copy the string */
ACPI_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 += (acpi_size)(ACPI_STRLEN (
linked_list->data.address32.resource_source.string_ptr) + 1);
}
/* Return the number of bytes consumed in this operation */
*bytes_consumed = ACPI_PTR_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 - 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_address64_resource (
u8 *byte_stream_buffer,
acpi_size *bytes_consumed,
u8 **output_buffer,
acpi_size *structure_size)
{
u8 *buffer;
struct acpi_resource *output_struct = (void *) *output_buffer;
u16 temp16;
u8 temp8;
u8 resource_type;
u8 *temp_ptr;
acpi_size struct_size;
u32 index;
ACPI_FUNCTION_TRACE ("rs_address64_resource");
buffer = byte_stream_buffer;
struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64);
resource_type = *buffer;
/* Point past the Descriptor to get the number of bytes consumed */
buffer += 1;
ACPI_MOVE_16_TO_16 (&temp16, buffer);
/* Validate minimum descriptor length */
if (temp16 < 43) {
return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
}
*bytes_consumed = temp16 + 3;
output_struct->id = ACPI_RSTYPE_ADDRESS64;
/* Get the Resource Type (Byte3) */
buffer += 2;
temp8 = *buffer;
/* Values 0-2 and 0xC0-0xFF are valid */
if ((temp8 > 2) && (temp8 < 0xC0)) {
return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
}
output_struct->data.address64.resource_type = temp8;
/* 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 (ACPI_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) & 0x03);
}
else {
if (ACPI_IO_RANGE == output_struct->data.address64.resource_type) {
output_struct->data.address64.attribute.io.range_attribute =
(u16) (temp8 & 0x03);
output_struct->data.address64.attribute.io.translation_attribute =
(u16) ((temp8 >> 4) & 0x03);
}
else {
/* BUS_NUMBER_RANGE == output_struct->Data.Address64.resource_type */
/* Nothing needs to be filled in */
}
}
if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
/* Move past revision_id and Reserved byte */
buffer += 2;
}
/* Get Granularity (Bytes 6-13) or (Bytes 8-15) */
buffer += 1;
ACPI_MOVE_64_TO_64 (&output_struct->data.address64.granularity, buffer);
/* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */
buffer += 8;
ACPI_MOVE_64_TO_64 (&output_struct->data.address64.min_address_range, buffer);
/* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */
buffer += 8;
ACPI_MOVE_64_TO_64 (&output_struct->data.address64.max_address_range, buffer);
/* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */
buffer += 8;
ACPI_MOVE_64_TO_64 (&output_struct->data.address64.address_translation_offset,
buffer);
/* Get address_length (Bytes 38-45) or (Bytes 40-47) */
buffer += 8;
ACPI_MOVE_64_TO_64 (&output_struct->data.address64.address_length, buffer);
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;
if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) {
/* Get type_specific_attribute (Bytes 48-55) */
buffer += 8;
ACPI_MOVE_64_TO_64 (
&output_struct->data.address64.type_specific_attributes,
buffer);
}
else {
output_struct->data.address64.type_specific_attributes = 0;
/* 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.
*
* Note: Some resource descriptors will have an additional null, so
* we add 1 to the length.
*/
if (*bytes_consumed > (46 + 1)) {
/* 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 =
(char *)((u8 *)output_struct + struct_size);
temp_ptr = (u8 *)
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 += ACPI_ROUND_UP_to_32_bITS (temp8);
}
}
/* 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_address64_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_address64_stream (
struct acpi_resource *linked_list,
u8 **output_buffer,
acpi_size *bytes_consumed)
{
u8 *buffer;
u16 *length_field;
u8 temp8;
char *temp_pointer;
ACPI_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 = ACPI_CAST_PTR (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 (ACPI_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 &
0x03) << 1;
}
else if (ACPI_IO_RANGE == linked_list->data.address64.resource_type) {
temp8 = (u8)
(linked_list->data.address64.attribute.io.range_attribute &
0x03);
temp8 |=
(linked_list->data.address64.attribute.io.range_attribute &
0x03) << 4;
}
*buffer = temp8;
buffer += 1;
/* Set the address space granularity */
ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.granularity);
buffer += 8;
/* Set the address range minimum */
ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.min_address_range);
buffer += 8;
/* Set the address range maximum */
ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.max_address_range);
buffer += 8;
/* Set the address translation offset */
ACPI_MOVE_64_TO_64 (buffer,
&linked_list->data.address64.address_translation_offset);
buffer += 8;
/* Set the address length */
ACPI_MOVE_64_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 = (char *) buffer;
/* Copy the string */
ACPI_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 += (acpi_size)(ACPI_STRLEN (
linked_list->data.address64.resource_source.string_ptr) + 1);
}
/* Return the number of bytes consumed in this operation */
*bytes_consumed = ACPI_PTR_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);
}
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