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|
/*******************************************************************************
*
* Module Name: dbconvert - debugger miscellaneous conversion routines
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2017, 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 "acdebug.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbconvert")
#define DB_DEFAULT_PKG_ELEMENTS 33
/*******************************************************************************
*
* FUNCTION: acpi_db_hex_char_to_value
*
* PARAMETERS: hex_char - Ascii Hex digit, 0-9|a-f|A-F
* return_value - Where the converted value is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a single hex character to a 4-bit number (0-16).
*
******************************************************************************/
acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value)
{
u8 value;
/* Digit must be ascii [0-9a-fA-F] */
if (!isxdigit(hex_char)) {
return (AE_BAD_HEX_CONSTANT);
}
if (hex_char <= 0x39) {
value = (u8)(hex_char - 0x30);
} else {
value = (u8)(toupper(hex_char) - 0x37);
}
*return_value = value;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_hex_byte_to_binary
*
* PARAMETERS: hex_byte - Double hex digit (0x00 - 0xFF) in format:
* hi_byte then lo_byte.
* return_value - Where the converted value is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert two hex characters to an 8 bit number (0 - 255).
*
******************************************************************************/
static acpi_status acpi_db_hex_byte_to_binary(char *hex_byte, u8 *return_value)
{
u8 local0;
u8 local1;
acpi_status status;
/* High byte */
status = acpi_db_hex_char_to_value(hex_byte[0], &local0);
if (ACPI_FAILURE(status)) {
return (status);
}
/* Low byte */
status = acpi_db_hex_char_to_value(hex_byte[1], &local1);
if (ACPI_FAILURE(status)) {
return (status);
}
*return_value = (u8)((local0 << 4) | local1);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_convert_to_buffer
*
* PARAMETERS: string - Input string to be converted
* object - Where the buffer object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a string to a buffer object. String is treated a list
* of buffer elements, each separated by a space or comma.
*
******************************************************************************/
static acpi_status
acpi_db_convert_to_buffer(char *string, union acpi_object *object)
{
u32 i;
u32 j;
u32 length;
u8 *buffer;
acpi_status status;
/* Generate the final buffer length */
for (i = 0, length = 0; string[i];) {
i += 2;
length++;
while (string[i] && ((string[i] == ',') || (string[i] == ' '))) {
i++;
}
}
buffer = ACPI_ALLOCATE(length);
if (!buffer) {
return (AE_NO_MEMORY);
}
/* Convert the command line bytes to the buffer */
for (i = 0, j = 0; string[i];) {
status = acpi_db_hex_byte_to_binary(&string[i], &buffer[j]);
if (ACPI_FAILURE(status)) {
ACPI_FREE(buffer);
return (status);
}
j++;
i += 2;
while (string[i] && ((string[i] == ',') || (string[i] == ' '))) {
i++;
}
}
object->type = ACPI_TYPE_BUFFER;
object->buffer.pointer = buffer;
object->buffer.length = length;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_convert_to_package
*
* PARAMETERS: string - Input string to be converted
* object - Where the package object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a string to a package object. Handles nested packages
* via recursion with acpi_db_convert_to_object.
*
******************************************************************************/
acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object)
{
char *this;
char *next;
u32 i;
acpi_object_type type;
union acpi_object *elements;
acpi_status status;
elements =
ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS *
sizeof(union acpi_object));
this = string;
for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {
this = acpi_db_get_next_token(this, &next, &type);
if (!this) {
break;
}
/* Recursive call to convert each package element */
status = acpi_db_convert_to_object(type, this, &elements[i]);
if (ACPI_FAILURE(status)) {
acpi_db_delete_objects(i + 1, elements);
ACPI_FREE(elements);
return (status);
}
this = next;
}
object->type = ACPI_TYPE_PACKAGE;
object->package.count = i;
object->package.elements = elements;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_convert_to_object
*
* PARAMETERS: type - Object type as determined by parser
* string - Input string to be converted
* object - Where the new object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a typed and tokenized string to an union acpi_object. Typing:
* 1) String objects were surrounded by quotes.
* 2) Buffer objects were surrounded by parentheses.
* 3) Package objects were surrounded by brackets "[]".
* 4) All standalone tokens are treated as integers.
*
******************************************************************************/
acpi_status
acpi_db_convert_to_object(acpi_object_type type,
char *string, union acpi_object *object)
{
acpi_status status = AE_OK;
switch (type) {
case ACPI_TYPE_STRING:
object->type = ACPI_TYPE_STRING;
object->string.pointer = string;
object->string.length = (u32)strlen(string);
break;
case ACPI_TYPE_BUFFER:
status = acpi_db_convert_to_buffer(string, object);
break;
case ACPI_TYPE_PACKAGE:
status = acpi_db_convert_to_package(string, object);
break;
default:
object->type = ACPI_TYPE_INTEGER;
status = acpi_ut_strtoul64(string,
(acpi_gbl_integer_byte_width |
ACPI_STRTOUL_BASE16),
&object->integer.value);
break;
}
return (status);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_encode_pld_buffer
*
* PARAMETERS: pld_info - _PLD buffer struct (Using local struct)
*
* RETURN: Encode _PLD buffer suitable for return value from _PLD
*
* DESCRIPTION: Bit-packs a _PLD buffer struct. Used to test the _PLD macros
*
******************************************************************************/
u8 *acpi_db_encode_pld_buffer(struct acpi_pld_info *pld_info)
{
u32 *buffer;
u32 dword;
buffer = ACPI_ALLOCATE_ZEROED(ACPI_PLD_BUFFER_SIZE);
if (!buffer) {
return (NULL);
}
/* First 32 bits */
dword = 0;
ACPI_PLD_SET_REVISION(&dword, pld_info->revision);
ACPI_PLD_SET_IGNORE_COLOR(&dword, pld_info->ignore_color);
ACPI_PLD_SET_RED(&dword, pld_info->red);
ACPI_PLD_SET_GREEN(&dword, pld_info->green);
ACPI_PLD_SET_BLUE(&dword, pld_info->blue);
ACPI_MOVE_32_TO_32(&buffer[0], &dword);
/* Second 32 bits */
dword = 0;
ACPI_PLD_SET_WIDTH(&dword, pld_info->width);
ACPI_PLD_SET_HEIGHT(&dword, pld_info->height);
ACPI_MOVE_32_TO_32(&buffer[1], &dword);
/* Third 32 bits */
dword = 0;
ACPI_PLD_SET_USER_VISIBLE(&dword, pld_info->user_visible);
ACPI_PLD_SET_DOCK(&dword, pld_info->dock);
ACPI_PLD_SET_LID(&dword, pld_info->lid);
ACPI_PLD_SET_PANEL(&dword
|