forked from luck/tmp_suning_uos_patched
b4e104eaeb
Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
445 lines
14 KiB
C
445 lines
14 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: rscreate - Create resource lists/tables
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2011, Intel Corp.
|
|
* 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 "accommon.h"
|
|
#include "acresrc.h"
|
|
#include "acnamesp.h"
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
|
ACPI_MODULE_NAME("rscreate")
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_create_resource_list
|
|
*
|
|
* PARAMETERS: aml_buffer - Pointer to the resource byte stream
|
|
* output_buffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status: AE_OK if okay, else a valid acpi_status code
|
|
* If output_buffer is not large enough, output_buffer_length
|
|
* indicates how large output_buffer should be, else it
|
|
* indicates how may u8 elements of output_buffer are valid.
|
|
*
|
|
* DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
|
|
* execution and parses the stream to create a linked list
|
|
* of device resources.
|
|
*
|
|
******************************************************************************/
|
|
acpi_status
|
|
acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
|
|
struct acpi_buffer *output_buffer)
|
|
{
|
|
|
|
acpi_status status;
|
|
u8 *aml_start;
|
|
acpi_size list_size_needed = 0;
|
|
u32 aml_buffer_length;
|
|
void *resource;
|
|
|
|
ACPI_FUNCTION_TRACE(rs_create_resource_list);
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer));
|
|
|
|
/* Params already validated, so we don't re-validate here */
|
|
|
|
aml_buffer_length = aml_buffer->buffer.length;
|
|
aml_start = aml_buffer->buffer.pointer;
|
|
|
|
/*
|
|
* Pass the aml_buffer into a module that can calculate
|
|
* the buffer size needed for the linked list
|
|
*/
|
|
status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
|
|
&list_size_needed);
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
|
|
status, (u32) list_size_needed));
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
status = acpi_ut_initialize_buffer(output_buffer, list_size_needed);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
|
|
resource = output_buffer->pointer;
|
|
status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
|
|
acpi_rs_convert_aml_to_resources,
|
|
&resource);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
output_buffer->pointer, (u32) output_buffer->length));
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_create_pci_routing_table
|
|
*
|
|
* PARAMETERS: package_object - Pointer to a union acpi_operand_object
|
|
* package
|
|
* output_buffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status AE_OK if okay, else a valid acpi_status code.
|
|
* If the output_buffer is too small, the error will be
|
|
* AE_BUFFER_OVERFLOW and output_buffer->Length will point
|
|
* to the size buffer needed.
|
|
*
|
|
* DESCRIPTION: Takes the union acpi_operand_object package and creates a
|
|
* linked list of PCI interrupt descriptions
|
|
*
|
|
* NOTE: It is the caller's responsibility to ensure that the start of the
|
|
* output buffer is aligned properly (if necessary).
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
|
|
struct acpi_buffer *output_buffer)
|
|
{
|
|
u8 *buffer;
|
|
union acpi_operand_object **top_object_list;
|
|
union acpi_operand_object **sub_object_list;
|
|
union acpi_operand_object *obj_desc;
|
|
acpi_size buffer_size_needed = 0;
|
|
u32 number_of_elements;
|
|
u32 index;
|
|
struct acpi_pci_routing_table *user_prt;
|
|
struct acpi_namespace_node *node;
|
|
acpi_status status;
|
|
struct acpi_buffer path_buffer;
|
|
|
|
ACPI_FUNCTION_TRACE(rs_create_pci_routing_table);
|
|
|
|
/* Params already validated, so we don't re-validate here */
|
|
|
|
/* Get the required buffer length */
|
|
|
|
status = acpi_rs_get_pci_routing_table_length(package_object,
|
|
&buffer_size_needed);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
|
|
(u32) buffer_size_needed));
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*
|
|
* Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
|
|
* package that in turn contains an u64 Address, a u8 Pin,
|
|
* a Name, and a u8 source_index.
|
|
*/
|
|
top_object_list = package_object->package.elements;
|
|
number_of_elements = package_object->package.count;
|
|
buffer = output_buffer->pointer;
|
|
user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
|
|
|
|
for (index = 0; index < number_of_elements; index++) {
|
|
|
|
/*
|
|
* Point user_prt past this current structure
|
|
*
|
|
* NOTE: On the first iteration, user_prt->Length will
|
|
* be zero because we cleared the return buffer earlier
|
|
*/
|
|
buffer += user_prt->length;
|
|
user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
|
|
|
|
/*
|
|
* Fill in the Length field with the information we have at this point.
|
|
* The minus four is to subtract the size of the u8 Source[4] member
|
|
* because it is added below.
|
|
*/
|
|
user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4);
|
|
|
|
/* Each element of the top-level package must also be a package */
|
|
|
|
if ((*top_object_list)->common.type != ACPI_TYPE_PACKAGE) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u]) Need sub-package, found %s",
|
|
index,
|
|
acpi_ut_get_object_type_name
|
|
(*top_object_list)));
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Each sub-package must be of length 4 */
|
|
|
|
if ((*top_object_list)->package.count != 4) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u]) Need package of length 4, found length %u",
|
|
index, (*top_object_list)->package.count));
|
|
return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
|
|
}
|
|
|
|
/*
|
|
* Dereference the sub-package.
|
|
* The sub_object_list will now point to an array of the four IRQ
|
|
* elements: [Address, Pin, Source, source_index]
|
|
*/
|
|
sub_object_list = (*top_object_list)->package.elements;
|
|
|
|
/* 1) First subobject: Dereference the PRT.Address */
|
|
|
|
obj_desc = sub_object_list[0];
|
|
if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u].Address) Need Integer, found %s",
|
|
index,
|
|
acpi_ut_get_object_type_name(obj_desc)));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
|
|
user_prt->address = obj_desc->integer.value;
|
|
|
|
/* 2) Second subobject: Dereference the PRT.Pin */
|
|
|
|
obj_desc = sub_object_list[1];
|
|
if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u].Pin) Need Integer, found %s",
|
|
index,
|
|
acpi_ut_get_object_type_name(obj_desc)));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
|
|
user_prt->pin = (u32) obj_desc->integer.value;
|
|
|
|
/*
|
|
* If the BIOS has erroneously reversed the _PRT source_name (index 2)
|
|
* and the source_index (index 3), fix it. _PRT is important enough to
|
|
* workaround this BIOS error. This also provides compatibility with
|
|
* other ACPI implementations.
|
|
*/
|
|
obj_desc = sub_object_list[3];
|
|
if (!obj_desc || (obj_desc->common.type != ACPI_TYPE_INTEGER)) {
|
|
sub_object_list[3] = sub_object_list[2];
|
|
sub_object_list[2] = obj_desc;
|
|
|
|
ACPI_WARNING((AE_INFO,
|
|
"(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
|
|
index));
|
|
}
|
|
|
|
/*
|
|
* 3) Third subobject: Dereference the PRT.source_name
|
|
* The name may be unresolved (slack mode), so allow a null object
|
|
*/
|
|
obj_desc = sub_object_list[2];
|
|
if (obj_desc) {
|
|
switch (obj_desc->common.type) {
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
if (obj_desc->reference.class !=
|
|
ACPI_REFCLASS_NAME) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u].Source) Need name, found Reference Class 0x%X",
|
|
index,
|
|
obj_desc->reference.class));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
|
|
node = obj_desc->reference.node;
|
|
|
|
/* Use *remaining* length of the buffer as max for pathname */
|
|
|
|
path_buffer.length = output_buffer->length -
|
|
(u32) ((u8 *) user_prt->source -
|
|
(u8 *) output_buffer->pointer);
|
|
path_buffer.pointer = user_prt->source;
|
|
|
|
status =
|
|
acpi_ns_handle_to_pathname((acpi_handle)
|
|
node,
|
|
&path_buffer);
|
|
|
|
/* +1 to include null terminator */
|
|
|
|
user_prt->length +=
|
|
(u32) ACPI_STRLEN(user_prt->source) + 1;
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
ACPI_STRCPY(user_prt->source,
|
|
obj_desc->string.pointer);
|
|
|
|
/*
|
|
* Add to the Length field the length of the string
|
|
* (add 1 for terminator)
|
|
*/
|
|
user_prt->length += obj_desc->string.length + 1;
|
|
break;
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
/*
|
|
* If this is a number, then the Source Name is NULL, since the
|
|
* entire buffer was zeroed out, we can leave this alone.
|
|
*
|
|
* Add to the Length field the length of the u32 NULL
|
|
*/
|
|
user_prt->length += sizeof(u32);
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u].Source) Need Ref/String/Integer, found %s",
|
|
index,
|
|
acpi_ut_get_object_type_name
|
|
(obj_desc)));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
}
|
|
|
|
/* Now align the current length */
|
|
|
|
user_prt->length =
|
|
(u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
|
|
|
|
/* 4) Fourth subobject: Dereference the PRT.source_index */
|
|
|
|
obj_desc = sub_object_list[3];
|
|
if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"(PRT[%u].SourceIndex) Need Integer, found %s",
|
|
index,
|
|
acpi_ut_get_object_type_name(obj_desc)));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
|
|
user_prt->source_index = (u32) obj_desc->integer.value;
|
|
|
|
/* Point to the next union acpi_operand_object in the top level package */
|
|
|
|
top_object_list++;
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
output_buffer->pointer, (u32) output_buffer->length));
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_create_aml_resources
|
|
*
|
|
* PARAMETERS: linked_list_buffer - Pointer to the resource linked list
|
|
* output_buffer - Pointer to the user's buffer
|
|
*
|
|
* RETURN: Status AE_OK if okay, else a valid acpi_status code.
|
|
* If the output_buffer is too small, the error will be
|
|
* AE_BUFFER_OVERFLOW and output_buffer->Length will point
|
|
* to the size buffer needed.
|
|
*
|
|
* DESCRIPTION: Takes the linked list of device resources and
|
|
* creates a bytestream to be used as input for the
|
|
* _SRS control method.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
|
|
struct acpi_buffer *output_buffer)
|
|
{
|
|
acpi_status status;
|
|
acpi_size aml_size_needed = 0;
|
|
|
|
ACPI_FUNCTION_TRACE(rs_create_aml_resources);
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
|
|
linked_list_buffer));
|
|
|
|
/*
|
|
* Params already validated, so we don't re-validate here
|
|
*
|
|
* Pass the linked_list_buffer into a module that calculates
|
|
* the buffer size needed for the byte stream.
|
|
*/
|
|
status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
|
|
(u32) aml_size_needed,
|
|
acpi_format_exception(status)));
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
|
|
status =
|
|
acpi_rs_convert_resources_to_aml(linked_list_buffer,
|
|
aml_size_needed,
|
|
output_buffer->pointer);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
|
|
output_buffer->pointer, (u32) output_buffer->length));
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|