linux-sg2042/drivers/acpi/utilities/uteval.c

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/******************************************************************************
*
* Module Name: uteval - Object evaluation
*
*****************************************************************************/
/*
* 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/acnamesp.h>
#include <acpi/acinterp.h>
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("uteval")
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>
2005-04-19 10:49:35 +08:00
/* Local prototypes */
static void
acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
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>
2005-04-19 10:49:35 +08:00
static acpi_status
acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
struct acpi_compatible_id *one_cid);
/*******************************************************************************
*
* FUNCTION: acpi_ut_osi_implementation
*
* PARAMETERS: walk_state - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Implementation of _OSI predefined control method
* Supported = _OSI (String)
*
******************************************************************************/
acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
{
union acpi_operand_object *string_desc;
union acpi_operand_object *return_desc;
acpi_native_uint i;
ACPI_FUNCTION_TRACE("ut_osi_implementation");
/* Validate the string input argument */
string_desc = walk_state->arguments[0].object;
if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
return_ACPI_STATUS(AE_TYPE);
}
/* Create a return object (Default value = 0) */
return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
if (!return_desc) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Compare input string to table of supported strings */
for (i = 0; i < ACPI_NUM_OSI_STRINGS; i++) {
if (!ACPI_STRCMP(string_desc->string.pointer,
(char *)acpi_gbl_valid_osi_strings[i])) {
/* This string is supported */
return_desc->integer.value = 0xFFFFFFFF;
break;
}
}
walk_state->return_desc = return_desc;
return_ACPI_STATUS(AE_CTRL_TERMINATE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_evaluate_object
*
* PARAMETERS: prefix_node - Starting node
* Path - Path to object from starting node
* expected_return_types - Bitmap of allowed return types
* return_desc - Where a return value is stored
*
* RETURN: Status
*
* DESCRIPTION: Evaluates a namespace object and verifies the type of the
* return object. Common code that simplifies accessing objects
* that have required return objects of fixed types.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
char *path,
u32 expected_return_btypes,
union acpi_operand_object **return_desc)
{
struct acpi_parameter_info info;
acpi_status status;
u32 return_btype;
ACPI_FUNCTION_TRACE("ut_evaluate_object");
info.node = prefix_node;
info.parameters = NULL;
info.parameter_type = ACPI_PARAM_ARGS;
/* Evaluate the object/method */
status = acpi_ns_evaluate_relative(path, &info);
if (ACPI_FAILURE(status)) {
if (status == AE_NOT_FOUND) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[%4.4s.%s] was not found\n",
acpi_ut_get_node_name(prefix_node),
path));
} else {
ACPI_REPORT_METHOD_ERROR("Method execution failed",
prefix_node, path, status);
}
return_ACPI_STATUS(status);
}
/* Did we get a return object? */
if (!info.return_object) {
if (expected_return_btypes) {
ACPI_REPORT_METHOD_ERROR("No object was returned from",
prefix_node, path,
AE_NOT_EXIST);
return_ACPI_STATUS(AE_NOT_EXIST);
}
return_ACPI_STATUS(AE_OK);
}
/* Map the return object type to the bitmapped type */
switch (ACPI_GET_OBJECT_TYPE(info.return_object)) {
case ACPI_TYPE_INTEGER:
return_btype = ACPI_BTYPE_INTEGER;
break;
case ACPI_TYPE_BUFFER:
return_btype = ACPI_BTYPE_BUFFER;
break;
case ACPI_TYPE_STRING:
return_btype = ACPI_BTYPE_STRING;
break;
case ACPI_TYPE_PACKAGE:
return_btype = ACPI_BTYPE_PACKAGE;
break;
default:
return_btype = 0;
break;
}
if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
/*
* We received a return object, but one was not expected. This can
* happen frequently if the "implicit return" feature is enabled.
* Just delete the return object and return AE_OK.
*/
acpi_ut_remove_reference(info.return_object);
return_ACPI_STATUS(AE_OK);
}
/* Is the return object one of the expected types? */
if (!(expected_return_btypes & return_btype)) {
ACPI_REPORT_METHOD_ERROR("Return object type is incorrect",
prefix_node, path, AE_TYPE);
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Type returned from %s was incorrect: %s, expected Btypes: %X\n",
path,
acpi_ut_get_object_type_name(info.
return_object),
expected_return_btypes));
/* On error exit, we must delete the return object */
acpi_ut_remove_reference(info.return_object);
return_ACPI_STATUS(AE_TYPE);
}
/* Object type is OK, return it */
*return_desc = info.return_object;
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_evaluate_numeric_object
*
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>
2005-04-19 10:49:35 +08:00
* PARAMETERS: object_name - Object name to be evaluated
* device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* Address - Where the value is returned
*
* RETURN: Status
*
* DESCRIPTION: Evaluates a numeric namespace object for a selected device
* and stores result in *Address.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_evaluate_numeric_object(char *object_name,
struct acpi_namespace_node *device_node,
acpi_integer * address)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE("ut_evaluate_numeric_object");
status = acpi_ut_evaluate_object(device_node, object_name,
ACPI_BTYPE_INTEGER, &obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Get the returned Integer */
*address = obj_desc->integer.value;
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_copy_id_string
*
* PARAMETERS: Destination - Where to copy the string
* Source - Source string
* max_length - Length of the destination buffer
*
* RETURN: None
*
* DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
* Performs removal of a leading asterisk if present -- workaround
* for a known issue on a bunch of machines.
*
******************************************************************************/
static void
acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
{
/*
* Workaround for ID strings that have a leading asterisk. This construct
* is not allowed by the ACPI specification (ID strings must be
* alphanumeric), but enough existing machines have this embedded in their
* ID strings that the following code is useful.
*/
if (*source == '*') {
source++;
}
/* Do the actual copy */
ACPI_STRNCPY(destination, source, max_length);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_HID
*
* PARAMETERS: device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* Hid - Where the HID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _HID control method that returns the hardware
* ID of the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
struct acpi_device_id *hid)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE("ut_execute_HID");
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
/* Convert the Numeric HID to string */
acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
hid->value);
} else {
/* Copy the String HID from the returned object */
acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
sizeof(hid->value));
}
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_translate_one_cid
*
* PARAMETERS: obj_desc - _CID object, must be integer or string
* one_cid - Where the CID string is returned
*
* RETURN: Status
*
* DESCRIPTION: Return a numeric or string _CID value as a string.
* (Compatible ID)
*
* NOTE: Assumes a maximum _CID string length of
* ACPI_MAX_CID_LENGTH.
*
******************************************************************************/
static acpi_status
acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
struct acpi_compatible_id *one_cid)
{
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
case ACPI_TYPE_INTEGER:
/* Convert the Numeric CID to string */
acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
one_cid->value);
return (AE_OK);
case ACPI_TYPE_STRING:
if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
return (AE_AML_STRING_LIMIT);
}
/* Copy the String CID from the returned object */
acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
ACPI_MAX_CID_LENGTH);
return (AE_OK);
default:
return (AE_TYPE);
}
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_CID
*
* PARAMETERS: device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* return_cid_list - Where the CID list is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _CID control method that returns one or more
* compatible hardware IDs for the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
struct acpi_compatible_id_list ** return_cid_list)
{
union acpi_operand_object *obj_desc;
acpi_status status;
u32 count;
u32 size;
struct acpi_compatible_id_list *cid_list;
acpi_native_uint i;
ACPI_FUNCTION_TRACE("ut_execute_CID");
/* Evaluate the _CID method for this device */
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
| ACPI_BTYPE_PACKAGE, &obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Get the number of _CIDs returned */
count = 1;
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
count = obj_desc->package.count;
}
/* Allocate a worst-case buffer for the _CIDs */
size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
sizeof(struct acpi_compatible_id_list));
cid_list = ACPI_MEM_CALLOCATE((acpi_size) size);
if (!cid_list) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Init CID list */
cid_list->count = count;
cid_list->size = size;
/*
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>
2005-04-19 10:49:35 +08:00
* A _CID can return either a single compatible ID or a package of
* compatible IDs. Each compatible ID can be one of the following:
* 1) Integer (32 bit compressed EISA ID) or
* 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
*/
/* The _CID object can be either a single CID or a package (list) of CIDs */
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
/* Translate each package element */
for (i = 0; i < count; i++) {
status =
acpi_ut_translate_one_cid(obj_desc->package.
elements[i],
&cid_list->id[i]);
if (ACPI_FAILURE(status)) {
break;
}
}
} else {
/* Only one CID, translate to a string */
status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
}
/* Cleanup on error */
if (ACPI_FAILURE(status)) {
ACPI_MEM_FREE(cid_list);
} else {
*return_cid_list = cid_list;
}
/* On exit, we must delete the _CID return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_UID
*
* PARAMETERS: device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* Uid - Where the UID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _UID control method that returns the hardware
* ID of the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
struct acpi_device_id *uid)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE("ut_execute_UID");
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
/* Convert the Numeric UID to string */
acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
uid->value);
} else {
/* Copy the String UID from the returned object */
acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
sizeof(uid->value));
}
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_STA
*
* PARAMETERS: device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* Flags - Where the status flags are returned
*
* RETURN: Status
*
* DESCRIPTION: Executes _STA for selected device and stores results in
* *Flags.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE("ut_execute_STA");
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
ACPI_BTYPE_INTEGER, &obj_desc);
if (ACPI_FAILURE(status)) {
if (AE_NOT_FOUND == status) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"_STA on %4.4s was not found, assuming device is present\n",
acpi_ut_get_node_name(device_node)));
*flags = 0x0F;
status = AE_OK;
}
return_ACPI_STATUS(status);
}
/* Extract the status flags */
*flags = (u32) obj_desc->integer.value;
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_Sxds
*
* PARAMETERS: device_node - Node for the device
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>
2005-04-19 10:49:35 +08:00
* Flags - Where the status flags are returned
*
* RETURN: Status
*
* DESCRIPTION: Executes _STA for selected device and stores results in
* *Flags.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
{
union acpi_operand_object *obj_desc;
acpi_status status;
u32 i;
ACPI_FUNCTION_TRACE("ut_execute_Sxds");
for (i = 0; i < 4; i++) {
highest[i] = 0xFF;
status = acpi_ut_evaluate_object(device_node,
(char *)
acpi_gbl_highest_dstate_names
[i], ACPI_BTYPE_INTEGER,
&obj_desc);
if (ACPI_FAILURE(status)) {
if (status != AE_NOT_FOUND) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"%s on Device %4.4s, %s\n",
(char *)
acpi_gbl_highest_dstate_names
[i],
acpi_ut_get_node_name
(device_node),
acpi_format_exception
(status)));
return_ACPI_STATUS(status);
}
} else {
/* Extract the Dstate value */
highest[i] = (u8) obj_desc->integer.value;
/* Delete the return object */
acpi_ut_remove_reference(obj_desc);
}
}
return_ACPI_STATUS(AE_OK);
}