diff options
Diffstat (limited to 'drivers/acpi/resources/rscreate.c')
| -rw-r--r-- | drivers/acpi/resources/rscreate.c | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c deleted file mode 100644 index c0bbfa2c419..00000000000 --- a/drivers/acpi/resources/rscreate.c +++ /dev/null @@ -1,467 +0,0 @@ -/******************************************************************************* - * - * Module Name: rscreate - Create resource lists/tables - * - ******************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, 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 <acpi/acresrc.h> -#include <acpi/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 an 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 acpi_integer 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++) { - int source_name_index = 2; - int source_index_index = 3; - - /* - * 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 (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { - ACPI_ERROR((AE_INFO, - "(PRT[%X]) 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[%X]) Need package of length 4, found length %d", - 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 (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].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 (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].Pin) Need Integer, found %s", - index, - acpi_ut_get_object_type_name(obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); - } - - /* - * If BIOS erroneously reversed the _PRT source_name and source_index, - * then reverse them back. - */ - if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) != - ACPI_TYPE_INTEGER) { - if (acpi_gbl_enable_interpreter_slack) { - source_name_index = 3; - source_index_index = 2; - printk(KERN_WARNING - "ACPI: Handling Garbled _PRT entry\n"); - } else { - ACPI_ERROR((AE_INFO, - "(PRT[%X].source_index) Need Integer, found %s", - index, - acpi_ut_get_object_type_name - (sub_object_list[3]))); - 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 - || (ACPI_GET_OBJECT_TYPE(obj_desc) != 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[source_name_index]; - if (obj_desc) { - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - - if (obj_desc->reference.class != - ACPI_REFCLASS_NAME) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].Source) Need name, found Reference Class %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[%X].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[source_index_index]; - if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) { - ACPI_ERROR((AE_INFO, - "(PRT[%X].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); -} |