diff options
| -rw-r--r-- | drivers/acpi/acpica/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acnamesp.h | 15 | ||||
| -rw-r--r-- | drivers/acpi/acpica/nsconvert.c | 302 | ||||
| -rw-r--r-- | drivers/acpi/acpica/nsrepair.c | 262 |
4 files changed, 318 insertions, 262 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index a1b9bf5085a2..5a542c8db942 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -83,6 +83,7 @@ acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o acpi-y += \ nsaccess.o \ nsalloc.o \ + nsconvert.o \ nsdump.o \ nseval.o \ nsinit.o \ diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index dec6e9ec2e0c..7156bc75ebe0 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -167,6 +167,21 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent); int acpi_ns_compare_names(char *name1, char *name2); /* + * nsconvert - Dynamic object conversion routines + */ +acpi_status +acpi_ns_convert_to_integer(union acpi_operand_object *original_object, + union acpi_operand_object **return_object); + +acpi_status +acpi_ns_convert_to_string(union acpi_operand_object *original_object, + union acpi_operand_object **return_object); + +acpi_status +acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, + union acpi_operand_object **return_object); + +/* * nsdump - Namespace dump/print utilities */ #ifdef ACPI_FUTURE_USAGE diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c new file mode 100644 index 000000000000..fcb7dfb494cd --- /dev/null +++ b/drivers/acpi/acpica/nsconvert.c @@ -0,0 +1,302 @@ +/****************************************************************************** + * + * Module Name: nsconvert - Object conversions for objects returned by + * predefined methods + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2013, 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 "acnamesp.h" +#include "acinterp.h" +#include "acpredef.h" +#include "amlresrc.h" + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsconvert") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_convert_to_integer + * + * PARAMETERS: original_object - Object to be converted + * return_object - Where the new converted object is returned + * + * RETURN: Status. AE_OK if conversion was successful. + * + * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer. + * + ******************************************************************************/ +acpi_status +acpi_ns_convert_to_integer(union acpi_operand_object *original_object, + union acpi_operand_object **return_object) +{ + union acpi_operand_object *new_object; + acpi_status status; + u64 value = 0; + u32 i; + + switch (original_object->common.type) { + case ACPI_TYPE_STRING: + + /* String-to-Integer conversion */ + + status = acpi_ut_strtoul64(original_object->string.pointer, + ACPI_ANY_BASE, &value); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_TYPE_BUFFER: + + /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */ + + if (original_object->buffer.length > 8) { + return (AE_AML_OPERAND_TYPE); + } + + /* Extract each buffer byte to create the integer */ + + for (i = 0; i < original_object->buffer.length; i++) { + value |= + ((u64)original_object->buffer. + pointer[i] << (i * 8)); + } + break; + + default: + return (AE_AML_OPERAND_TYPE); + } + + new_object = acpi_ut_create_integer_object(value); + if (!new_object) { + return (AE_NO_MEMORY); + } + + *return_object = new_object; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_convert_to_string + * + * PARAMETERS: original_object - Object to be converted + * return_object - Where the new converted object is returned + * + * RETURN: Status. AE_OK if conversion was successful. + * + * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String. + * + ******************************************************************************/ + +acpi_status +acpi_ns_convert_to_string(union acpi_operand_object *original_object, + union acpi_operand_object **return_object) +{ + union acpi_operand_object *new_object; + acpi_size length; + acpi_status status; + + switch (original_object->common.type) { + case ACPI_TYPE_INTEGER: + /* + * Integer-to-String conversion. Commonly, convert + * an integer of value 0 to a NULL string. The last element of + * _BIF and _BIX packages occasionally need this fix. + */ + if (original_object->integer.value == 0) { + + /* Allocate a new NULL string object */ + + new_object = acpi_ut_create_string_object(0); + if (!new_object) { + return (AE_NO_MEMORY); + } + } else { + status = + acpi_ex_convert_to_string(original_object, + &new_object, + ACPI_IMPLICIT_CONVERT_HEX); + if (ACPI_FAILURE(status)) { + return (status); + } + } + break; + + case ACPI_TYPE_BUFFER: + /* + * Buffer-to-String conversion. Use a to_string + * conversion, no transform performed on the buffer data. The best + * example of this is the _BIF method, where the string data from + * the battery is often (incorrectly) returned as buffer object(s). + */ + length = 0; + while ((length < original_object->buffer.length) && + (original_object->buffer.pointer[length])) { + length++; + } + + /* Allocate a new string object */ + + new_object = acpi_ut_create_string_object(length); + if (!new_object) { + return (AE_NO_MEMORY); + } + + /* + * Copy the raw buffer data with no transform. String is already NULL + * terminated at Length+1. + */ + ACPI_MEMCPY(new_object->string.pointer, + original_object->buffer.pointer, length); + break; + + default: + return (AE_AML_OPERAND_TYPE); + } + + *return_object = new_object; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_convert_to_buffer + * + * PARAMETERS: original_object - Object to be converted + * return_object - Where the new converted object is returned + * + * RETURN: Status. AE_OK if conversion was successful. + * + * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer. + * + ******************************************************************************/ + +acpi_status +acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, + union acpi_operand_object **return_object) +{ + union acpi_operand_object *new_object; + acpi_status status; + union acpi_operand_object **elements; + u32 *dword_buffer; + u32 count; + u32 i; + + switch (original_object->common.type) { + case ACPI_TYPE_INTEGER: + /* + * Integer-to-Buffer conversion. + * Convert the Integer to a packed-byte buffer. _MAT and other + * objects need this sometimes, if a read has been performed on a + * Field object that is less than or equal to the global integer + * size (32 or 64 bits). + */ + status = + acpi_ex_convert_to_buffer(original_object, &new_object); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + case ACPI_TYPE_STRING: + + /* String-to-Buffer conversion. Simple data copy */ + + new_object = + acpi_ut_create_buffer_object(original_object->string. + length); + if (!new_object) { + return (AE_NO_MEMORY); + } + + ACPI_MEMCPY(new_object->buffer.pointer, + original_object->string.pointer, + original_object->string.length); + break; + + case ACPI_TYPE_PACKAGE: + /* + * This case is often seen for predefined names that must return a + * Buffer object with multiple DWORD integers within. For example, + * _FDE and _GTM. The Package can be converted to a Buffer. + */ + + /* All elements of the Package must be integers */ + + elements = original_object->package.elements; + count = original_object->package.count; + + for (i = 0; i < count; i++) { + if ((!*elements) || + ((*elements)->common.type != ACPI_TYPE_INTEGER)) { + return (AE_AML_OPERAND_TYPE); + } + elements++; + } + + /* Create the new buffer object to replace the Package */ + + new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count)); + if (!new_object) { + return (AE_NO_MEMORY); + } + + /* Copy the package elements (integers) to the buffer as DWORDs */ + + elements = original_object->package.elements; + dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer); + + for (i = 0; i < count; i++) { + *dword_buffer = (u32)(*elements)->integer.value; + dword_buffer++; + elements++; + } + break; + + default: + return (AE_AML_OPERAND_TYPE); + } + + *return_object = new_object; + return (AE_OK); +} diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index f9c9fd45cd1f..c5e828f4ed0b 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -84,18 +84,6 @@ ACPI_MODULE_NAME("nsrepair") * ******************************************************************************/ /* Local prototypes */ -static acpi_status -acpi_ns_convert_to_integer(union acpi_operand_object *original_object, - union acpi_operand_object **return_object); - -static acpi_status -acpi_ns_convert_to_string(union acpi_operand_object *original_object, - union acpi_operand_object **return_object); - -static acpi_status -acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, - union acpi_operand_object **return_object); - static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct acpi_namespace_node *node, @@ -344,256 +332,6 @@ static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct /******************************************************************************* * - * FUNCTION: acpi_ns_convert_to_integer - * - * PARAMETERS: original_object - Object to be converted - * return_object - Where the new converted object is returned - * - * RETURN: Status. AE_OK if conversion was successful. - * - * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_convert_to_integer(union acpi_operand_object *original_object, - union acpi_operand_object **return_object) -{ - union acpi_operand_object *new_object; - acpi_status status; - u64 value = 0; - u32 i; - - switch (original_object->common.type) { - case ACPI_TYPE_STRING: - - /* String-to-Integer conversion */ - - status = acpi_ut_strtoul64(original_object->string.pointer, - ACPI_ANY_BASE, &value); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_TYPE_BUFFER: - - /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */ - - if (original_object->buffer.length > 8) { - return (AE_AML_OPERAND_TYPE); - } - - /* Extract each buffer byte to create the integer */ - - for (i = 0; i < original_object->buffer.length; i++) { - value |= - ((u64) original_object->buffer. - pointer[i] << (i * 8)); - } - break; - - default: - return (AE_AML_OPERAND_TYPE); - } - - new_object = acpi_ut_create_integer_object(value); - if (!new_object) { - return (AE_NO_MEMORY); - } - - *return_object = new_object; - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_convert_to_string - * - * PARAMETERS: original_object - Object to be converted - * return_object - Where the new converted object is returned - * - * RETURN: Status. AE_OK if conversion was successful. - * - * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_convert_to_string(union acpi_operand_object *original_object, - union acpi_operand_object **return_object) -{ - union acpi_operand_object *new_object; - acpi_size length; - acpi_status status; - - switch (original_object->common.type) { - case ACPI_TYPE_INTEGER: - /* - * Integer-to-String conversion. Commonly, convert - * an integer of value 0 to a NULL string. The last element of - * _BIF and _BIX packages occasionally need this fix. - */ - if (original_object->integer.value == 0) { - - /* Allocate a new NULL string object */ - - new_object = acpi_ut_create_string_object(0); - if (!new_object) { - return (AE_NO_MEMORY); - } - } else { - status = - acpi_ex_convert_to_string(original_object, - &new_object, - ACPI_IMPLICIT_CONVERT_HEX); - if (ACPI_FAILURE(status)) { - return (status); - } - } - break; - - case ACPI_TYPE_BUFFER: - /* - * Buffer-to-String conversion. Use a to_string - * conversion, no transform performed on the buffer data. The best - * example of this is the _BIF method, where the string data from - * the battery is often (incorrectly) returned as buffer object(s). - */ - length = 0; - while ((length < original_object->buffer.length) && - (original_object->buffer.pointer[length])) { - length++; - } - - /* Allocate a new string object */ - - new_object = acpi_ut_create_string_object(length); - if (!new_object) { - return (AE_NO_MEMORY); - } - - /* - * Copy the raw buffer data with no transform. String is already NULL - * terminated at Length+1. - */ - ACPI_MEMCPY(new_object->string.pointer, - original_object->buffer.pointer, length); - break; - - default: - return (AE_AML_OPERAND_TYPE); - } - - *return_object = new_object; - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_convert_to_buffer - * - * PARAMETERS: original_object - Object to be converted - * return_object - Where the new converted object is returned - * - * RETURN: Status. AE_OK if conversion was successful. - * - * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer. - * - ******************************************************************************/ - -static acpi_status -acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, - union acpi_operand_object **return_object) -{ - union acpi_operand_object *new_object; - acpi_status status; - union acpi_operand_object **elements; - u32 *dword_buffer; - u32 count; - u32 i; - - switch (original_object->common.type) { - case ACPI_TYPE_INTEGER: - /* - * Integer-to-Buffer conversion. - * Convert the Integer to a packed-byte buffer. _MAT and other - * objects need this sometimes, if a read has been performed on a - * Field object that is less than or equal to the global integer - * size (32 or 64 bits). - */ - status = - acpi_ex_convert_to_buffer(original_object, &new_object); - if (ACPI_FAILURE(status)) { - return (status); - } - break; - - case ACPI_TYPE_STRING: - - /* String-to-Buffer conversion. Simple data copy */ - - new_object = - acpi_ut_create_buffer_object(original_object->string. - length); - if (!new_object) { - return (AE_NO_MEMORY); - } - - ACPI_MEMCPY(new_object->buffer.pointer, - original_object->string.pointer, - original_object->string.length); - break; - - case ACPI_TYPE_PACKAGE: - /* - * This case is often seen for predefined names that must return a - * Buffer object with multiple DWORD integers within. For example, - * _FDE and _GTM. The Package can be converted to a Buffer. - */ - - /* All elements of the Package must be integers */ - - elements = original_object->package.elements; - count = original_object->package.count; - - for (i = 0; i < count; i++) { - if ((!*elements) || - ((*elements)->common.type != ACPI_TYPE_INTEGER)) { - return (AE_AML_OPERAND_TYPE); - } - elements++; - } - - /* Create the new buffer object to replace the Package */ - - new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count)); - if (!new_object) { - return (AE_NO_MEMORY); - } - - /* Copy the package elements (integers) to the buffer as DWORDs */ - - elements = original_object->package.elements; - dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer); - - for (i = 0; i < count; i++) { - *dword_buffer = (u32) (*elements)->integer.value; - dword_buffer++; - elements++; - } - break; - - default: - return (AE_AML_OPERAND_TYPE); - } - - *return_object = new_object; - return (AE_OK); -} - -/******************************************************************************* - * * FUNCTION: acpi_ns_repair_null_element * * PARAMETERS: data - Pointer to validation data structure |