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Diffstat (limited to 'drivers/acpi/utilities/utresrc.c')
| -rw-r--r-- | drivers/acpi/utilities/utresrc.c | 615 |
1 files changed, 0 insertions, 615 deletions
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c deleted file mode 100644 index c3e3e1308edc..000000000000 --- a/drivers/acpi/utilities/utresrc.c +++ /dev/null @@ -1,615 +0,0 @@ -/******************************************************************************* - * - * Module Name: utresrc - Resource management utilities - * - ******************************************************************************/ - -/* - * 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/amlresrc.h> - -#define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utresrc") -#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) -/* - * Strings used to decode resource descriptors. - * Used by both the disasssembler and the debugger resource dump routines - */ -const char *acpi_gbl_bm_decode[] = { - "NotBusMaster", - "BusMaster" -}; - -const char *acpi_gbl_config_decode[] = { - "0 - Good Configuration", - "1 - Acceptable Configuration", - "2 - Suboptimal Configuration", - "3 - ***Invalid Configuration***", -}; - -const char *acpi_gbl_consume_decode[] = { - "ResourceProducer", - "ResourceConsumer" -}; - -const char *acpi_gbl_dec_decode[] = { - "PosDecode", - "SubDecode" -}; - -const char *acpi_gbl_he_decode[] = { - "Level", - "Edge" -}; - -const char *acpi_gbl_io_decode[] = { - "Decode10", - "Decode16" -}; - -const char *acpi_gbl_ll_decode[] = { - "ActiveHigh", - "ActiveLow" -}; - -const char *acpi_gbl_max_decode[] = { - "MaxNotFixed", - "MaxFixed" -}; - -const char *acpi_gbl_mem_decode[] = { - "NonCacheable", - "Cacheable", - "WriteCombining", - "Prefetchable" -}; - -const char *acpi_gbl_min_decode[] = { - "MinNotFixed", - "MinFixed" -}; - -const char *acpi_gbl_mtp_decode[] = { - "AddressRangeMemory", - "AddressRangeReserved", - "AddressRangeACPI", - "AddressRangeNVS" -}; - -const char *acpi_gbl_rng_decode[] = { - "InvalidRanges", - "NonISAOnlyRanges", - "ISAOnlyRanges", - "EntireRange" -}; - -const char *acpi_gbl_rw_decode[] = { - "ReadOnly", - "ReadWrite" -}; - -const char *acpi_gbl_shr_decode[] = { - "Exclusive", - "Shared" -}; - -const char *acpi_gbl_siz_decode[] = { - "Transfer8", - "Transfer8_16", - "Transfer16", - "InvalidSize" -}; - -const char *acpi_gbl_trs_decode[] = { - "DenseTranslation", - "SparseTranslation" -}; - -const char *acpi_gbl_ttp_decode[] = { - "TypeStatic", - "TypeTranslation" -}; - -const char *acpi_gbl_typ_decode[] = { - "Compatibility", - "TypeA", - "TypeB", - "TypeF" -}; - -#endif - -/* - * Base sizes of the raw AML resource descriptors, indexed by resource type. - * Zero indicates a reserved (and therefore invalid) resource type. - */ -const u8 acpi_gbl_resource_aml_sizes[] = { - /* Small descriptors */ - - 0, - 0, - 0, - 0, - ACPI_AML_SIZE_SMALL(struct aml_resource_irq), - ACPI_AML_SIZE_SMALL(struct aml_resource_dma), - ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent), - ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent), - ACPI_AML_SIZE_SMALL(struct aml_resource_io), - ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io), - 0, - 0, - 0, - 0, - ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small), - ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag), - - /* Large descriptors */ - - 0, - ACPI_AML_SIZE_LARGE(struct aml_resource_memory24), - ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register), - 0, - ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large), - ACPI_AML_SIZE_LARGE(struct aml_resource_memory32), - ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32), - ACPI_AML_SIZE_LARGE(struct aml_resource_address32), - ACPI_AML_SIZE_LARGE(struct aml_resource_address16), - ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq), - ACPI_AML_SIZE_LARGE(struct aml_resource_address64), - ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64) -}; - -/* - * Resource types, used to validate the resource length field. - * The length of fixed-length types must match exactly, variable - * lengths must meet the minimum required length, etc. - * Zero indicates a reserved (and therefore invalid) resource type. - */ -static const u8 acpi_gbl_resource_types[] = { - /* Small descriptors */ - - 0, - 0, - 0, - 0, - ACPI_SMALL_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_SMALL_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - 0, - 0, - 0, - 0, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - - /* Large descriptors */ - - 0, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - 0, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_FIXED_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_VARIABLE_LENGTH, - ACPI_FIXED_LENGTH -}; - -/******************************************************************************* - * - * FUNCTION: acpi_ut_walk_aml_resources - * - * PARAMETERS: Aml - Pointer to the raw AML resource template - * aml_length - Length of the entire template - * user_function - Called once for each descriptor found. If - * NULL, a pointer to the end_tag is returned - * Context - Passed to user_function - * - * RETURN: Status - * - * DESCRIPTION: Walk a raw AML resource list(buffer). User function called - * once for each resource found. - * - ******************************************************************************/ - -acpi_status -acpi_ut_walk_aml_resources(u8 * aml, - acpi_size aml_length, - acpi_walk_aml_callback user_function, void **context) -{ - acpi_status status; - u8 *end_aml; - u8 resource_index; - u32 length; - u32 offset = 0; - - ACPI_FUNCTION_TRACE(ut_walk_aml_resources); - - /* The absolute minimum resource template is one end_tag descriptor */ - - if (aml_length < sizeof(struct aml_resource_end_tag)) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - - /* Point to the end of the resource template buffer */ - - end_aml = aml + aml_length; - - /* Walk the byte list, abort on any invalid descriptor type or length */ - - while (aml < end_aml) { - - /* Validate the Resource Type and Resource Length */ - - status = acpi_ut_validate_resource(aml, &resource_index); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the length of this descriptor */ - - length = acpi_ut_get_descriptor_length(aml); - - /* Invoke the user function */ - - if (user_function) { - status = - user_function(aml, length, offset, resource_index, - context); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* An end_tag descriptor terminates this resource template */ - - if (acpi_ut_get_resource_type(aml) == - ACPI_RESOURCE_NAME_END_TAG) { - /* - * There must be at least one more byte in the buffer for - * the 2nd byte of the end_tag - */ - if ((aml + 1) >= end_aml) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - - /* Return the pointer to the end_tag if requested */ - - if (!user_function) { - *context = aml; - } - - /* Normal exit */ - - return_ACPI_STATUS(AE_OK); - } - - aml += length; - offset += length; - } - - /* Did not find an end_tag descriptor */ - - return (AE_AML_NO_RESOURCE_END_TAG); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_validate_resource - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * return_index - Where the resource index is returned. NULL - * if the index is not required. - * - * RETURN: Status, and optionally the Index into the global resource tables - * - * DESCRIPTION: Validate an AML resource descriptor by checking the Resource - * Type and Resource Length. Returns an index into the global - * resource information/dispatch tables for later use. - * - ******************************************************************************/ - -acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) -{ - u8 resource_type; - u8 resource_index; - acpi_rs_length resource_length; - acpi_rs_length minimum_resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* - * 1) Validate the resource_type field (Byte 0) - */ - resource_type = ACPI_GET8(aml); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (resource_type & ACPI_RESOURCE_NAME_LARGE) { - - /* Verify the large resource type (name) against the max */ - - if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* - * Large Resource Type -- bits 6:0 contain the name - * Translate range 0x80-0x8B to index range 0x10-0x1B - */ - resource_index = (u8) (resource_type - 0x70); - } else { - /* - * Small Resource Type -- bits 6:3 contain the name - * Shift range to index range 0x00-0x0F - */ - resource_index = (u8) - ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3); - } - - /* Check validity of the resource type, zero indicates name is invalid */ - - if (!acpi_gbl_resource_types[resource_index]) { - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* - * 2) Validate the resource_length field. This ensures that the length - * is at least reasonable, and guarantees that it is non-zero. - */ - resource_length = acpi_ut_get_resource_length(aml); - minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index]; - - /* Validate based upon the type of resource - fixed length or variable */ - - switch (acpi_gbl_resource_types[resource_index]) { - case ACPI_FIXED_LENGTH: - - /* Fixed length resource, length must match exactly */ - - if (resource_length != minimum_resource_length) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - case ACPI_VARIABLE_LENGTH: - - /* Variable length resource, length must be at least the minimum */ - - if (resource_length < minimum_resource_length) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - case ACPI_SMALL_VARIABLE_LENGTH: - - /* Small variable length resource, length can be (Min) or (Min-1) */ - - if ((resource_length > minimum_resource_length) || - (resource_length < (minimum_resource_length - 1))) { - return (AE_AML_BAD_RESOURCE_LENGTH); - } - break; - - default: - - /* Shouldn't happen (because of validation earlier), but be sure */ - - return (AE_AML_INVALID_RESOURCE_TYPE); - } - - /* Optionally return the resource table index */ - - if (return_index) { - *return_index = resource_index; - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_type - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: The Resource Type with no extraneous bits (except the - * Large/Small descriptor bit -- this is left alone) - * - * DESCRIPTION: Extract the Resource Type/Name from the first byte of - * a resource descriptor. - * - ******************************************************************************/ - -u8 acpi_ut_get_resource_type(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - - /* Large Resource Type -- bits 6:0 contain the name */ - - return (ACPI_GET8(aml)); - } else { - /* Small Resource Type -- bits 6:3 contain the name */ - - return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Byte Length - * - * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By - * definition, this does not include the size of the descriptor - * header or the length field itself. - * - ******************************************************************************/ - -u16 acpi_ut_get_resource_length(void *aml) -{ - acpi_rs_length resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* - * Byte 0 contains the descriptor name (Resource Type) - * Examine the large/small bit in the resource header - */ - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - - /* Large Resource type -- bytes 1-2 contain the 16-bit length */ - - ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); - - } else { - /* Small Resource type -- bits 2:0 of byte 0 contain the length */ - - resource_length = (u16) (ACPI_GET8(aml) & - ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); - } - - return (resource_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_header_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Length of the AML header (depends on large/small descriptor) - * - * DESCRIPTION: Get the length of the header for this resource. - * - ******************************************************************************/ - -u8 acpi_ut_get_resource_header_length(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* Examine the large/small bit in the resource header */ - - if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { - return (sizeof(struct aml_resource_large_header)); - } else { - return (sizeof(struct aml_resource_small_header)); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_descriptor_length - * - * PARAMETERS: Aml - Pointer to the raw AML resource descriptor - * - * RETURN: Byte length - * - * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the - * length of the descriptor header and the length field itself. - * Used to walk descriptor lists. - * - ******************************************************************************/ - -u32 acpi_ut_get_descriptor_length(void *aml) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * Get the Resource Length (does not include header length) and add - * the header length (depends on if this is a small or large resource) - */ - return (acpi_ut_get_resource_length(aml) + - acpi_ut_get_resource_header_length(aml)); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_get_resource_end_tag - * - * PARAMETERS: obj_desc - The resource template buffer object - * end_tag - Where the pointer to the end_tag is returned - * - * RETURN: Status, pointer to the end tag - * - * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template - * Note: allows a buffer length of zero. - * - ******************************************************************************/ - -acpi_status -acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc, - u8 ** end_tag) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_get_resource_end_tag); - - /* Allow a buffer length of zero */ - - if (!obj_desc->buffer.length) { - *end_tag = obj_desc->buffer.pointer; - return_ACPI_STATUS(AE_OK); - } - - /* Validate the template and get a pointer to the end_tag */ - - status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer, - obj_desc->buffer.length, NULL, - (void **)end_tag); - - return_ACPI_STATUS(status); -} |