400 lines
11 KiB
C
400 lines
11 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: utpredef - support functions for predefined names
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2014, 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 "acpredef.h"
|
|
|
|
#define _COMPONENT ACPI_UTILITIES
|
|
ACPI_MODULE_NAME("utpredef")
|
|
|
|
/*
|
|
* Names for the types that can be returned by the predefined objects.
|
|
* Used for warning messages. Must be in the same order as the ACPI_RTYPEs
|
|
*/
|
|
static const char *ut_rtype_names[] = {
|
|
"/Integer",
|
|
"/String",
|
|
"/Buffer",
|
|
"/Package",
|
|
"/Reference",
|
|
};
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_get_next_predefined_method
|
|
*
|
|
* PARAMETERS: this_name - Entry in the predefined method/name table
|
|
*
|
|
* RETURN: Pointer to next entry in predefined table.
|
|
*
|
|
* DESCRIPTION: Get the next entry in the predefine method table. Handles the
|
|
* cases where a package info entry follows a method name that
|
|
* returns a package.
|
|
*
|
|
******************************************************************************/
|
|
|
|
const union acpi_predefined_info *acpi_ut_get_next_predefined_method(const union
|
|
acpi_predefined_info
|
|
*this_name)
|
|
{
|
|
|
|
/*
|
|
* Skip next entry in the table if this name returns a Package
|
|
* (next entry contains the package info)
|
|
*/
|
|
if ((this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) &&
|
|
(this_name->info.expected_btypes != ACPI_RTYPE_ALL)) {
|
|
this_name++;
|
|
}
|
|
|
|
this_name++;
|
|
return (this_name);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_match_predefined_method
|
|
*
|
|
* PARAMETERS: name - Name to find
|
|
*
|
|
* RETURN: Pointer to entry in predefined table. NULL indicates not found.
|
|
*
|
|
* DESCRIPTION: Check an object name against the predefined object list.
|
|
*
|
|
******************************************************************************/
|
|
|
|
const union acpi_predefined_info *acpi_ut_match_predefined_method(char *name)
|
|
{
|
|
const union acpi_predefined_info *this_name;
|
|
|
|
/* Quick check for a predefined name, first character must be underscore */
|
|
|
|
if (name[0] != '_') {
|
|
return (NULL);
|
|
}
|
|
|
|
/* Search info table for a predefined method/object name */
|
|
|
|
this_name = acpi_gbl_predefined_methods;
|
|
while (this_name->info.name[0]) {
|
|
if (ACPI_COMPARE_NAME(name, this_name->info.name)) {
|
|
return (this_name);
|
|
}
|
|
|
|
this_name = acpi_ut_get_next_predefined_method(this_name);
|
|
}
|
|
|
|
return (NULL); /* Not found */
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_get_expected_return_types
|
|
*
|
|
* PARAMETERS: buffer - Where the formatted string is returned
|
|
* expected_Btypes - Bitfield of expected data types
|
|
*
|
|
* RETURN: Formatted string in Buffer.
|
|
*
|
|
* DESCRIPTION: Format the expected object types into a printable string.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
|
|
{
|
|
u32 this_rtype;
|
|
u32 i;
|
|
u32 j;
|
|
|
|
if (!expected_btypes) {
|
|
ACPI_STRCPY(buffer, "NONE");
|
|
return;
|
|
}
|
|
|
|
j = 1;
|
|
buffer[0] = 0;
|
|
this_rtype = ACPI_RTYPE_INTEGER;
|
|
|
|
for (i = 0; i < ACPI_NUM_RTYPES; i++) {
|
|
|
|
/* If one of the expected types, concatenate the name of this type */
|
|
|
|
if (expected_btypes & this_rtype) {
|
|
ACPI_STRCAT(buffer, &ut_rtype_names[i][j]);
|
|
j = 0; /* Use name separator from now on */
|
|
}
|
|
|
|
this_rtype <<= 1; /* Next Rtype */
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* The remaining functions are used by iASL and acpi_help only
|
|
*
|
|
******************************************************************************/
|
|
|
|
#if (defined ACPI_ASL_COMPILER || defined ACPI_HELP_APP)
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
/* Local prototypes */
|
|
|
|
static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types);
|
|
|
|
/* Types that can be returned externally by a predefined name */
|
|
|
|
static const char *ut_external_type_names[] = /* Indexed by ACPI_TYPE_* */
|
|
{
|
|
", UNSUPPORTED-TYPE",
|
|
", Integer",
|
|
", String",
|
|
", Buffer",
|
|
", Package"
|
|
};
|
|
|
|
/* Bit widths for resource descriptor predefined names */
|
|
|
|
static const char *ut_resource_type_names[] = {
|
|
"/1",
|
|
"/2",
|
|
"/3",
|
|
"/8",
|
|
"/16",
|
|
"/32",
|
|
"/64",
|
|
"/variable",
|
|
};
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_match_resource_name
|
|
*
|
|
* PARAMETERS: name - Name to find
|
|
*
|
|
* RETURN: Pointer to entry in the resource table. NULL indicates not
|
|
* found.
|
|
*
|
|
* DESCRIPTION: Check an object name against the predefined resource
|
|
* descriptor object list.
|
|
*
|
|
******************************************************************************/
|
|
|
|
const union acpi_predefined_info *acpi_ut_match_resource_name(char *name)
|
|
{
|
|
const union acpi_predefined_info *this_name;
|
|
|
|
/* Quick check for a predefined name, first character must be underscore */
|
|
|
|
if (name[0] != '_') {
|
|
return (NULL);
|
|
}
|
|
|
|
/* Search info table for a predefined method/object name */
|
|
|
|
this_name = acpi_gbl_resource_names;
|
|
while (this_name->info.name[0]) {
|
|
if (ACPI_COMPARE_NAME(name, this_name->info.name)) {
|
|
return (this_name);
|
|
}
|
|
|
|
this_name++;
|
|
}
|
|
|
|
return (NULL); /* Not found */
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_display_predefined_method
|
|
*
|
|
* PARAMETERS: buffer - Scratch buffer for this function
|
|
* this_name - Entry in the predefined method/name table
|
|
* multi_line - TRUE if output should be on >1 line
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Display information about a predefined method. Number and
|
|
* type of the input arguments, and expected type(s) for the
|
|
* return value, if any.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
acpi_ut_display_predefined_method(char *buffer,
|
|
const union acpi_predefined_info *this_name,
|
|
u8 multi_line)
|
|
{
|
|
u32 arg_count;
|
|
|
|
/*
|
|
* Get the argument count and the string buffer
|
|
* containing all argument types
|
|
*/
|
|
arg_count = acpi_ut_get_argument_types(buffer,
|
|
this_name->info.argument_list);
|
|
|
|
if (multi_line) {
|
|
printf(" ");
|
|
}
|
|
|
|
printf("%4.4s Requires %s%u argument%s",
|
|
this_name->info.name,
|
|
(this_name->info.argument_list & ARG_COUNT_IS_MINIMUM) ?
|
|
"(at least) " : "", arg_count, arg_count != 1 ? "s" : "");
|
|
|
|
/* Display the types for any arguments */
|
|
|
|
if (arg_count > 0) {
|
|
printf(" (%s)", buffer);
|
|
}
|
|
|
|
if (multi_line) {
|
|
printf("\n ");
|
|
}
|
|
|
|
/* Get the return value type(s) allowed */
|
|
|
|
if (this_name->info.expected_btypes) {
|
|
acpi_ut_get_expected_return_types(buffer,
|
|
this_name->info.
|
|
expected_btypes);
|
|
printf(" Return value types: %s\n", buffer);
|
|
} else {
|
|
printf(" No return value\n");
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_get_argument_types
|
|
*
|
|
* PARAMETERS: buffer - Where to return the formatted types
|
|
* argument_types - Types field for this method
|
|
*
|
|
* RETURN: count - the number of arguments required for this method
|
|
*
|
|
* DESCRIPTION: Format the required data types for this method (Integer,
|
|
* String, Buffer, or Package) and return the required argument
|
|
* count.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
|
|
{
|
|
u16 this_argument_type;
|
|
u16 sub_index;
|
|
u16 arg_count;
|
|
u32 i;
|
|
|
|
*buffer = 0;
|
|
sub_index = 2;
|
|
|
|
/* First field in the types list is the count of args to follow */
|
|
|
|
arg_count = METHOD_GET_ARG_COUNT(argument_types);
|
|
if (arg_count > METHOD_PREDEF_ARGS_MAX) {
|
|
printf("**** Invalid argument count (%u) "
|
|
"in predefined info structure\n", arg_count);
|
|
return (arg_count);
|
|
}
|
|
|
|
/* Get each argument from the list, convert to ascii, store to buffer */
|
|
|
|
for (i = 0; i < arg_count; i++) {
|
|
this_argument_type = METHOD_GET_NEXT_TYPE(argument_types);
|
|
|
|
if (!this_argument_type
|
|
|| (this_argument_type > METHOD_MAX_ARG_TYPE)) {
|
|
printf("**** Invalid argument type (%u) "
|
|
"in predefined info structure\n",
|
|
this_argument_type);
|
|
return (arg_count);
|
|
}
|
|
|
|
strcat(buffer,
|
|
ut_external_type_names[this_argument_type] + sub_index);
|
|
sub_index = 0;
|
|
}
|
|
|
|
return (arg_count);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ut_get_resource_bit_width
|
|
*
|
|
* PARAMETERS: buffer - Where the formatted string is returned
|
|
* types - Bitfield of expected data types
|
|
*
|
|
* RETURN: Count of return types. Formatted string in Buffer.
|
|
*
|
|
* DESCRIPTION: Format the resource bit widths into a printable string.
|
|
*
|
|
******************************************************************************/
|
|
|
|
u32 acpi_ut_get_resource_bit_width(char *buffer, u16 types)
|
|
{
|
|
u32 i;
|
|
u16 sub_index;
|
|
u32 found;
|
|
|
|
*buffer = 0;
|
|
sub_index = 1;
|
|
found = 0;
|
|
|
|
for (i = 0; i < NUM_RESOURCE_WIDTHS; i++) {
|
|
if (types & 1) {
|
|
strcat(buffer, &(ut_resource_type_names[i][sub_index]));
|
|
sub_index = 0;
|
|
found++;
|
|
}
|
|
|
|
types >>= 1;
|
|
}
|
|
|
|
return (found);
|
|
}
|
|
#endif
|