// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/*******************************************************************************
*
* Module Name : dbtest - Various debug - related tests
*
******************************************************************************/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acdebug.h"
#include "acnamesp.h"
#include "acpredef.h"
#include "acinterp.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbtest" )
/* Local prototypes */
static void acpi_db_test_all_objects(void );
static acpi_status
acpi_db_test_one_object(acpi_handle obj_handle,
u32 nesting_level, void *context, void **return_value);
static acpi_status
acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length);
static acpi_status
acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length);
static acpi_status
acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length);
static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node);
static acpi_status
acpi_db_test_field_unit_type(union acpi_operand_object *obj_desc);
static acpi_status
acpi_db_read_from_object(struct acpi_namespace_node *node,
acpi_object_type expected_type,
union acpi_object **value);
static acpi_status
acpi_db_write_to_object(struct acpi_namespace_node *node,
union acpi_object *value);
static void acpi_db_evaluate_all_predefined_names(char *count_arg);
static acpi_status
acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
u32 nesting_level,
void *context, void **return_value);
/*
* Test subcommands
*/
static struct acpi_db_argument_info acpi_db_test_types[] = {
{"OBJECTS" },
{"PREDEFINED" },
{NULL} /* Must be null terminated */
};
#define CMD_TEST_OBJECTS 0
#define CMD_TEST_PREDEFINED 1
#define BUFFER_FILL_VALUE 0 xFF
/*
* Support for the special debugger read / write control methods .
* These methods are installed into the current namespace and are
* used to read and write the various namespace objects . The point
* is to force the AML interpreter do all of the work .
*/
#define ACPI_DB_READ_METHOD "\\_T98"
#define ACPI_DB_WRITE_METHOD "\\_T99"
static acpi_handle read_handle = NULL;
static acpi_handle write_handle = NULL;
/* ASL Definitions of the debugger read/write control methods. AML below. */
#if 0
definition_block("ssdt.aml" , "SSDT" , 2 , "Intel" , "DEBUG" , 0 x00000001)
{
method(_T98, 1 , not_serialized) { /* Read */
return (de_ref_of(arg0))
}
}
definition_block("ssdt2.aml" , "SSDT" , 2 , "Intel" , "DEBUG" , 0 x00000001)
{
method(_T99, 2 , not_serialized) { /* Write */
store(arg1, arg0)
}
}
#endif
static unsigned char read_method_code[] = {
0 x53, 0 x53, 0 x44, 0 x54, 0 x2E, 0 x00, 0 x00, 0 x00, /* 00000000 "SSDT...." */
0 x02, 0 xC9, 0 x49, 0 x6E, 0 x74, 0 x65, 0 x6C, 0 x00, /* 00000008 "..Intel." */
0 x44, 0 x45, 0 x42, 0 x55, 0 x47, 0 x00, 0 x00, 0 x00, /* 00000010 "DEBUG..." */
0 x01, 0 x00, 0 x00, 0 x00, 0 x49, 0 x4E, 0 x54, 0 x4C, /* 00000018 "....INTL" */
0 x18, 0 x12, 0 x13, 0 x20, 0 x14, 0 x09, 0 x5F, 0 x54, /* 00000020 "... .._T" */
0 x39, 0 x38, 0 x01, 0 xA4, 0 x83, 0 x68 /* 00000028 "98...h" */
};
static unsigned char write_method_code[] = {
0 x53, 0 x53, 0 x44, 0 x54, 0 x2E, 0 x00, 0 x00, 0 x00, /* 00000000 "SSDT...." */
0 x02, 0 x15, 0 x49, 0 x6E, 0 x74, 0 x65, 0 x6C, 0 x00, /* 00000008 "..Intel." */
0 x44, 0 x45, 0 x42, 0 x55, 0 x47, 0 x00, 0 x00, 0 x00, /* 00000010 "DEBUG..." */
0 x01, 0 x00, 0 x00, 0 x00, 0 x49, 0 x4E, 0 x54, 0 x4C, /* 00000018 "....INTL" */
0 x18, 0 x12, 0 x13, 0 x20, 0 x14, 0 x09, 0 x5F, 0 x54, /* 00000020 "... .._T" */
0 x39, 0 x39, 0 x02, 0 x70, 0 x69, 0 x68 /* 00000028 "99.pih" */
};
/*******************************************************************************
*
* FUNCTION : acpi_db_execute_test
*
* PARAMETERS : type_arg - Subcommand
*
* RETURN : None
*
* DESCRIPTION : Execute various debug tests .
*
* Note : Code is prepared for future expansion of the TEST command .
*
******************************************************************************/
void acpi_db_execute_test(char *type_arg)
{
u32 temp;
acpi_ut_strupr(type_arg);
temp = acpi_db_match_argument(type_arg, acpi_db_test_types);
if (temp == ACPI_TYPE_NOT_FOUND) {
acpi_os_printf("Invalid or unsupported argument\n" );
return ;
}
switch (temp) {
case CMD_TEST_OBJECTS:
acpi_db_test_all_objects();
break ;
case CMD_TEST_PREDEFINED:
acpi_db_evaluate_all_predefined_names(NULL);
break ;
default :
break ;
}
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_all_objects
*
* PARAMETERS : None
*
* RETURN : None
*
* DESCRIPTION : This test implements the OBJECTS subcommand . It exercises the
* namespace by reading / writing / comparing all data objects such
* as integers , strings , buffers , fields , buffer fields , etc .
*
******************************************************************************/
static void acpi_db_test_all_objects(void )
{
acpi_status status;
/* Install the debugger read-object control method if necessary */
if (!read_handle) {
status = acpi_install_method(read_method_code);
if (ACPI_FAILURE(status)) {
acpi_os_printf
("%s, Could not install debugger read method\n" ,
acpi_format_exception(status));
return ;
}
status =
acpi_get_handle(NULL, ACPI_DB_READ_METHOD, &read_handle);
if (ACPI_FAILURE(status)) {
acpi_os_printf
("Could not obtain handle for debug method %s\n" ,
ACPI_DB_READ_METHOD);
return ;
}
}
/* Install the debugger write-object control method if necessary */
if (!write_handle) {
status = acpi_install_method(write_method_code);
if (ACPI_FAILURE(status)) {
acpi_os_printf
("%s, Could not install debugger write method\n" ,
acpi_format_exception(status));
return ;
}
status =
acpi_get_handle(NULL, ACPI_DB_WRITE_METHOD, &write_handle);
if (ACPI_FAILURE(status)) {
acpi_os_printf
("Could not obtain handle for debug method %s\n" ,
ACPI_DB_WRITE_METHOD);
return ;
}
}
/* Walk the entire namespace, testing each supported named data object */
(void )acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, acpi_db_test_one_object,
NULL, NULL, NULL);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_one_object
*
* PARAMETERS : acpi_walk_callback
*
* RETURN : Status
*
* DESCRIPTION : Test one namespace object . Supported types are Integer ,
* String , Buffer , Package , buffer_field , and field_unit .
* All other object types are simply ignored .
*
******************************************************************************/
static acpi_status
acpi_db_test_one_object(acpi_handle obj_handle,
u32 nesting_level, void *context, void **return_value)
{
struct acpi_namespace_node *node;
union acpi_operand_object *obj_desc;
acpi_object_type local_type;
u32 bit_length = 0 ;
u32 byte_length = 0 ;
acpi_status status = AE_OK;
node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
obj_desc = node->object;
/*
* For the supported types , get the actual bit length or
* byte length . Map the type to one of Integer / String / Buffer .
*/
switch (node->type) {
case ACPI_TYPE_INTEGER:
/* Integer width is either 32 or 64 */
local_type = ACPI_TYPE_INTEGER;
bit_length = acpi_gbl_integer_bit_width;
break ;
case ACPI_TYPE_STRING:
local_type = ACPI_TYPE_STRING;
byte_length = obj_desc->string.length;
break ;
case ACPI_TYPE_BUFFER:
local_type = ACPI_TYPE_BUFFER;
byte_length = obj_desc->buffer.length;
bit_length = byte_length * 8 ;
break ;
case ACPI_TYPE_PACKAGE:
local_type = ACPI_TYPE_PACKAGE;
break ;
case ACPI_TYPE_FIELD_UNIT:
case ACPI_TYPE_LOCAL_REGION_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
case ACPI_TYPE_LOCAL_BANK_FIELD:
local_type = ACPI_TYPE_FIELD_UNIT;
break ;
case ACPI_TYPE_BUFFER_FIELD:
/*
* The returned object will be a Buffer if the field length
* is larger than the size of an Integer ( 32 or 64 bits
* depending on the DSDT version ) .
*/
local_type = ACPI_TYPE_INTEGER;
if (obj_desc) {
bit_length = obj_desc->common_field.bit_length;
byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length);
if (bit_length > acpi_gbl_integer_bit_width) {
local_type = ACPI_TYPE_BUFFER;
}
}
break ;
default :
/* Ignore all non-data types - Methods, Devices, Scopes, etc. */
return (AE_OK);
}
/* Emit the common prefix: Type:Name */
acpi_os_printf("%14s: %4.4s" ,
acpi_ut_get_type_name(node->type), node->name.ascii);
if (!obj_desc) {
acpi_os_printf(" No attached sub-object, ignoring\n" );
return (AE_OK);
}
/* At this point, we have resolved the object to one of the major types */
switch (local_type) {
case ACPI_TYPE_INTEGER:
status = acpi_db_test_integer_type(node, bit_length);
break ;
case ACPI_TYPE_STRING:
status = acpi_db_test_string_type(node, byte_length);
break ;
case ACPI_TYPE_BUFFER:
status = acpi_db_test_buffer_type(node, bit_length);
break ;
case ACPI_TYPE_PACKAGE:
status = acpi_db_test_package_type(node);
break ;
case ACPI_TYPE_FIELD_UNIT:
status = acpi_db_test_field_unit_type(obj_desc);
break ;
default :
acpi_os_printf(" Ignoring, type not implemented (%2.2X)" ,
local_type);
break ;
}
/* Exit on error, but don't abort the namespace walk */
if (ACPI_FAILURE(status)) {
status = AE_OK;
}
acpi_os_printf("\n" );
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_integer_type
*
* PARAMETERS : node - Parent NS node for the object
* bit_length - Actual length of the object . Used for
* support of arbitrary length field_unit
* and buffer_field objects .
*
* RETURN : Status
*
* DESCRIPTION : Test read / write for an Integer - valued object . Performs a
* write / read / compare of an arbitrary new value , then performs
* a write / read / compare of the original value .
*
******************************************************************************/
static acpi_status
acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length)
{
union acpi_object *temp1 = NULL;
union acpi_object *temp2 = NULL;
union acpi_object *temp3 = NULL;
union acpi_object write_value;
u64 value_to_write;
acpi_status status;
if (bit_length > 64 ) {
acpi_os_printf(" Invalid length for an Integer: %u" ,
bit_length);
return (AE_OK);
}
/* Read the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp1);
if (ACPI_FAILURE(status)) {
return (status);
}
acpi_os_printf(ACPI_DEBUG_LENGTH_FORMAT " %8.8X%8.8X" ,
bit_length, ACPI_ROUND_BITS_UP_TO_BYTES(bit_length),
ACPI_FORMAT_UINT64(temp1->integer.value));
value_to_write = ACPI_UINT64_MAX >> (64 - bit_length);
if (temp1->integer.value == value_to_write) {
value_to_write = 0 ;
}
/* Write a new value */
write_value.type = ACPI_TYPE_INTEGER;
write_value.integer.value = value_to_write;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the new value */
status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp2);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (temp2->integer.value != value_to_write) {
acpi_os_printf(" MISMATCH 2: %8.8X%8.8X, expecting %8.8X%8.8X" ,
ACPI_FORMAT_UINT64(temp2->integer.value),
ACPI_FORMAT_UINT64(value_to_write));
}
/* Write back the original value */
write_value.integer.value = temp1->integer.value;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp3);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (temp3->integer.value != temp1->integer.value) {
acpi_os_printf(" MISMATCH 3: %8.8X%8.8X, expecting %8.8X%8.8X" ,
ACPI_FORMAT_UINT64(temp3->integer.value),
ACPI_FORMAT_UINT64(temp1->integer.value));
}
exit :
if (temp1) {
acpi_os_free(temp1);
}
if (temp2) {
acpi_os_free(temp2);
}
if (temp3) {
acpi_os_free(temp3);
}
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_buffer_type
*
* PARAMETERS : node - Parent NS node for the object
* bit_length - Actual length of the object .
*
* RETURN : Status
*
* DESCRIPTION : Test read / write for an Buffer - valued object . Performs a
* write / read / compare of an arbitrary new value , then performs
* a write / read / compare of the original value .
*
******************************************************************************/
static acpi_status
acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length)
{
union acpi_object *temp1 = NULL;
union acpi_object *temp2 = NULL;
union acpi_object *temp3 = NULL;
u8 *buffer;
union acpi_object write_value;
acpi_status status;
u32 byte_length;
u32 i;
u8 extra_bits;
byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length);
if (byte_length == 0 ) {
acpi_os_printf(" Ignoring zero length buffer" );
return (AE_OK);
}
/* Allocate a local buffer */
buffer = ACPI_ALLOCATE_ZEROED(byte_length);
if (!buffer) {
return (AE_NO_MEMORY);
}
/* Read the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp1);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Emit a few bytes of the buffer */
acpi_os_printf(ACPI_DEBUG_LENGTH_FORMAT, bit_length,
temp1->buffer.length);
for (i = 0 ; ((i < 8 ) && (i < byte_length)); i++) {
acpi_os_printf(" %2.2X" , temp1->buffer.pointer[i]);
}
acpi_os_printf("... " );
/*
* Write a new value .
*
* Handle possible extra bits at the end of the buffer . Can
* happen for field_units larger than an integer , but the bit
* count is not an integral number of bytes . Zero out the
* unused bits .
*/
memset(buffer, BUFFER_FILL_VALUE, byte_length);
extra_bits = bit_length % 8 ;
if (extra_bits) {
buffer[byte_length - 1 ] = ACPI_MASK_BITS_ABOVE(extra_bits);
}
write_value.type = ACPI_TYPE_BUFFER;
write_value.buffer.length = byte_length;
write_value.buffer.pointer = buffer;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the new value */
status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp2);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (memcmp(temp2->buffer.pointer, buffer, byte_length)) {
acpi_os_printf(" MISMATCH 2: New buffer value" );
}
/* Write back the original value */
write_value.buffer.length = byte_length;
write_value.buffer.pointer = temp1->buffer.pointer;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp3);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (memcmp(temp1->buffer.pointer, temp3->buffer.pointer, byte_length)) {
acpi_os_printf(" MISMATCH 3: While restoring original buffer" );
}
exit :
ACPI_FREE(buffer);
if (temp1) {
acpi_os_free(temp1);
}
if (temp2) {
acpi_os_free(temp2);
}
if (temp3) {
acpi_os_free(temp3);
}
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_string_type
*
* PARAMETERS : node - Parent NS node for the object
* byte_length - Actual length of the object .
*
* RETURN : Status
*
* DESCRIPTION : Test read / write for an String - valued object . Performs a
* write / read / compare of an arbitrary new value , then performs
* a write / read / compare of the original value .
*
******************************************************************************/
static acpi_status
acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length)
{
union acpi_object *temp1 = NULL;
union acpi_object *temp2 = NULL;
union acpi_object *temp3 = NULL;
char *value_to_write = "Test String from AML Debugger" ;
union acpi_object write_value;
acpi_status status;
/* Read the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp1);
if (ACPI_FAILURE(status)) {
return (status);
}
acpi_os_printf(ACPI_DEBUG_LENGTH_FORMAT " \" %s\"" ,
(temp1->string.length * 8 ), temp1->string.length,
temp1->string.pointer);
/* Write a new value */
write_value.type = ACPI_TYPE_STRING;
write_value.string.length = strlen(value_to_write);
write_value.string.pointer = value_to_write;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the new value */
status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp2);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (strcmp(temp2->string.pointer, value_to_write)) {
acpi_os_printf(" MISMATCH 2: %s, expecting %s" ,
temp2->string.pointer, value_to_write);
}
/* Write back the original value */
write_value.string.length = strlen(temp1->string.pointer);
write_value.string.pointer = temp1->string.pointer;
status = acpi_db_write_to_object(node, &write_value);
if (ACPI_FAILURE(status)) {
goto exit ;
}
/* Ensure that we can read back the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp3);
if (ACPI_FAILURE(status)) {
goto exit ;
}
if (strcmp(temp1->string.pointer, temp3->string.pointer)) {
acpi_os_printf(" MISMATCH 3: %s, expecting %s" ,
temp3->string.pointer, temp1->string.pointer);
}
exit :
if (temp1) {
acpi_os_free(temp1);
}
if (temp2) {
acpi_os_free(temp2);
}
if (temp3) {
acpi_os_free(temp3);
}
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_package_type
*
* PARAMETERS : node - Parent NS node for the object
*
* RETURN : Status
*
* DESCRIPTION : Test read for a Package object .
*
******************************************************************************/
static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node)
{
union acpi_object *temp1 = NULL;
acpi_status status;
/* Read the original value */
status = acpi_db_read_from_object(node, ACPI_TYPE_PACKAGE, &temp1);
if (ACPI_FAILURE(status)) {
return (status);
}
acpi_os_printf(" %.2X Elements" , temp1->package.count);
acpi_os_free(temp1);
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_test_field_unit_type
*
* PARAMETERS : obj_desc - A field unit object
*
* RETURN : Status
*
* DESCRIPTION : Test read / write on a named field unit .
*
******************************************************************************/
static acpi_status
acpi_db_test_field_unit_type(union acpi_operand_object *obj_desc)
{
union acpi_operand_object *region_obj;
u32 bit_length = 0 ;
u32 byte_length = 0 ;
acpi_status status = AE_OK;
union acpi_operand_object *ret_buffer_desc;
/* Supported spaces are memory/io/pci_config */
region_obj = obj_desc->field.region_obj;
switch (region_obj->region.space_id) {
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
case ACPI_ADR_SPACE_SYSTEM_IO:
case ACPI_ADR_SPACE_PCI_CONFIG:
/* Need the interpreter to execute */
acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
/* Exercise read-then-write */
status =
acpi_ex_read_data_from_field(NULL, obj_desc,
&ret_buffer_desc);
if (status == AE_OK) {
acpi_ex_write_data_to_field(ret_buffer_desc, obj_desc,
NULL);
acpi_ut_remove_reference(ret_buffer_desc);
}
acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
bit_length = obj_desc->common_field.bit_length;
byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length);
acpi_os_printf(ACPI_DEBUG_LENGTH_FORMAT " [%s]" , bit_length,
byte_length,
acpi_ut_get_region_name(region_obj->region.
space_id));
return (status);
default :
acpi_os_printf
(" %s address space is not supported in this command [%4.4s]" ,
acpi_ut_get_region_name(region_obj->region.space_id),
region_obj->region.node->name.ascii);
return (AE_OK);
}
}
/*******************************************************************************
*
* FUNCTION : acpi_db_read_from_object
*
* PARAMETERS : node - Parent NS node for the object
* expected_type - Object type expected from the read
* value - Where the value read is returned
*
* RETURN : Status
*
* DESCRIPTION : Performs a read from the specified object by invoking the
* special debugger control method that reads the object . Thus ,
* the AML interpreter is doing all of the work , increasing the
* validity of the test .
*
******************************************************************************/
static acpi_status
acpi_db_read_from_object(struct acpi_namespace_node *node,
acpi_object_type expected_type,
union acpi_object **value)
{
union acpi_object *ret_value;
struct acpi_object_list param_objects;
union acpi_object params[2 ];
struct acpi_buffer return_obj;
acpi_status status;
params[0 ].type = ACPI_TYPE_LOCAL_REFERENCE;
params[0 ].reference.actual_type = node->type;
params[0 ].reference.handle = ACPI_CAST_PTR(acpi_handle, node);
param_objects.count = 1 ;
param_objects.pointer = params;
return_obj.length = ACPI_ALLOCATE_BUFFER;
acpi_gbl_method_executing = TRUE ;
status = acpi_evaluate_object(read_handle, NULL,
¶m_objects, &return_obj);
acpi_gbl_method_executing = FALSE ;
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not read from object, %s" ,
acpi_format_exception(status));
return (status);
}
ret_value = (union acpi_object *)return_obj.pointer;
switch (ret_value->type) {
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_PACKAGE:
/*
* Did we receive the type we wanted ? Most important for the
* Integer / Buffer case ( when a field is larger than an Integer ,
* it should return a Buffer ) .
*/
if (ret_value->type != expected_type) {
acpi_os_printf
(" Type mismatch: Expected %s, Received %s" ,
acpi_ut_get_type_name(expected_type),
acpi_ut_get_type_name(ret_value->type));
acpi_os_free(return_obj.pointer);
return (AE_TYPE);
}
*value = ret_value;
break ;
default :
acpi_os_printf(" Unsupported return object type, %s" ,
acpi_ut_get_type_name(ret_value->type));
acpi_os_free(return_obj.pointer);
return (AE_TYPE);
}
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_write_to_object
*
* PARAMETERS : node - Parent NS node for the object
* value - Value to be written
*
* RETURN : Status
*
* DESCRIPTION : Performs a write to the specified object by invoking the
* special debugger control method that writes the object . Thus ,
* the AML interpreter is doing all of the work , increasing the
* validity of the test .
*
******************************************************************************/
static acpi_status
acpi_db_write_to_object(struct acpi_namespace_node *node,
union acpi_object *value)
{
struct acpi_object_list param_objects;
union acpi_object params[2 ];
acpi_status status;
params[0 ].type = ACPI_TYPE_LOCAL_REFERENCE;
params[0 ].reference.actual_type = node->type;
params[0 ].reference.handle = ACPI_CAST_PTR(acpi_handle, node);
/* Copy the incoming user parameter */
memcpy(¶ms[1 ], value, sizeof (union acpi_object));
param_objects.count = 2 ;
param_objects.pointer = params;
acpi_gbl_method_executing = TRUE ;
status = acpi_evaluate_object(write_handle, NULL, ¶m_objects, NULL);
acpi_gbl_method_executing = FALSE ;
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not write to object, %s" ,
acpi_format_exception(status));
}
return (status);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_evaluate_all_predefined_names
*
* PARAMETERS : count_arg - Max number of methods to execute
*
* RETURN : None
*
* DESCRIPTION : Namespace batch execution . Execute predefined names in the
* namespace , up to the max count , if specified .
*
******************************************************************************/
static void acpi_db_evaluate_all_predefined_names(char *count_arg)
{
struct acpi_db_execute_walk info;
info.count = 0 ;
info.max_count = ACPI_UINT32_MAX;
if (count_arg) {
info.max_count = strtoul(count_arg, NULL, 0 );
}
/* Search all nodes in namespace */
(void )acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
acpi_db_evaluate_one_predefined_name, NULL,
(void *)&info, NULL);
acpi_os_printf("Evaluated %u predefined names in the namespace\n" ,
info.count);
}
/*******************************************************************************
*
* FUNCTION : acpi_db_evaluate_one_predefined_name
*
* PARAMETERS : Callback from walk_namespace
*
* RETURN : Status
*
* DESCRIPTION : Batch execution module . Currently only executes predefined
* ACPI names .
*
******************************************************************************/
static acpi_status
acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
u32 nesting_level,
void *context, void **return_value)
{
struct acpi_namespace_node *node =
(struct acpi_namespace_node *)obj_handle;
struct acpi_db_execute_walk *info =
(struct acpi_db_execute_walk *)context;
char *pathname;
const union acpi_predefined_info *predefined;
struct acpi_device_info *obj_info;
struct acpi_object_list param_objects;
union acpi_object params[ACPI_METHOD_NUM_ARGS];
union acpi_object *this_param;
struct acpi_buffer return_obj;
acpi_status status;
u16 arg_type_list;
u8 arg_count;
u8 arg_type;
u32 i;
/* The name must be a predefined ACPI name */
predefined = acpi_ut_match_predefined_method(node->name.ascii);
if (!predefined) {
return (AE_OK);
}
if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
return (AE_OK);
}
pathname = acpi_ns_get_normalized_pathname(node, TRUE );
if (!pathname) {
return (AE_OK);
}
/* Get the object info for number of method parameters */
status = acpi_get_object_info(obj_handle, &obj_info);
if (ACPI_FAILURE(status)) {
ACPI_FREE(pathname);
return (status);
}
param_objects.count = 0 ;
param_objects.pointer = NULL;
if (obj_info->type == ACPI_TYPE_METHOD) {
/* Setup default parameters (with proper types) */
arg_type_list = predefined->info.argument_list;
arg_count = METHOD_GET_ARG_COUNT(arg_type_list);
/*
* Setup the ACPI - required number of arguments , regardless of what
* the actual method defines . If there is a difference , then the
* method is wrong and a warning will be issued during execution .
*/
this_param = params;
for (i = 0 ; i < arg_count; i++) {
arg_type = METHOD_GET_NEXT_TYPE(arg_type_list);
this_param->type = arg_type;
switch (arg_type) {
case ACPI_TYPE_INTEGER:
this_param->integer.value = 1 ;
break ;
case ACPI_TYPE_STRING:
this_param->string.pointer =
"This is the default argument string" ;
this_param->string.length =
strlen(this_param->string.pointer);
break ;
case ACPI_TYPE_BUFFER:
this_param->buffer.pointer = (u8 *)params; /* just a garbage buffer */
this_param->buffer.length = 48 ;
break ;
case ACPI_TYPE_PACKAGE:
this_param->package.elements = NULL;
this_param->package.count = 0 ;
break ;
default :
acpi_os_printf
("%s: Unsupported argument type: %u\n" ,
pathname, arg_type);
break ;
}
this_param++;
}
param_objects.count = arg_count;
param_objects.pointer = params;
}
ACPI_FREE(obj_info);
return_obj.pointer = NULL;
return_obj.length = ACPI_ALLOCATE_BUFFER;
/* Do the actual method execution */
acpi_gbl_method_executing = TRUE ;
status = acpi_evaluate_object(node, NULL, ¶m_objects, &return_obj);
acpi_os_printf("%-32s returned %s\n" ,
pathname, acpi_format_exception(status));
acpi_gbl_method_executing = FALSE ;
ACPI_FREE(pathname);
/* Ignore status from method execution */
status = AE_OK;
/* Update count, check if we have executed enough methods */
info->count++;
if (info->count >= info->max_count) {
status = AE_CTRL_TERMINATE;
}
return (status);
}
Messung V0.5 in Prozent C=93 H=91 G=91
¤ Dauer der Verarbeitung: 0.34 Sekunden
(vorverarbeitet am 2026-09-29)
¤
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