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-rw-r--r--drivers/acpi/executer/exconvrt.c691
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diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
deleted file mode 100644
index 1d1f35adddde..000000000000
--- a/drivers/acpi/executer/exconvrt.c
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@@ -1,691 +0,0 @@
-/******************************************************************************
- *
- * Module Name: exconvrt - Object conversion routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, 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 <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exconvrt")
-
-/* Local prototypes */
-static u32
-acpi_ex_convert_to_ascii(acpi_integer integer,
- u16 base, u8 * string, u8 max_length);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_integer
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the new Integer object is returned
- * Flags - Used for string conversion
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to an integer.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc, u32 flags)
-{
- union acpi_operand_object *return_desc;
- u8 *pointer;
- acpi_integer result;
- u32 i;
- u32 count;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_STRING:
-
- /* Note: Takes advantage of common buffer/string fields */
-
- pointer = obj_desc->buffer.pointer;
- count = obj_desc->buffer.length;
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /*
- * Convert the buffer/string to an integer. Note that both buffers and
- * strings are treated as raw data - we don't convert ascii to hex for
- * strings.
- *
- * There are two terminating conditions for the loop:
- * 1) The size of an integer has been reached, or
- * 2) The end of the buffer or string has been reached
- */
- result = 0;
-
- /* String conversion is different than Buffer conversion */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_STRING:
-
- /*
- * Convert string to an integer - for most cases, the string must be
- * hexadecimal as per the ACPI specification. The only exception (as
- * of ACPI 3.0) is that the to_integer() operator allows both decimal
- * and hexadecimal strings (hex prefixed with "0x").
- */
- status = acpi_ut_strtoul64((char *)pointer, flags, &result);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Check for zero-length buffer */
-
- if (!count) {
- return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
- }
-
- /* Transfer no more than an integer's worth of data */
-
- if (count > acpi_gbl_integer_byte_width) {
- count = acpi_gbl_integer_byte_width;
- }
-
- /*
- * Convert buffer to an integer - we simply grab enough raw data
- * from the buffer to fill an integer
- */
- for (i = 0; i < count; i++) {
- /*
- * Get next byte and shift it into the Result.
- * Little endian is used, meaning that the first byte of the buffer
- * is the LSB of the integer
- */
- result |= (((acpi_integer) pointer[i]) << (i * 8));
- }
- break;
-
- default:
-
- /* No other types can get here */
- break;
- }
-
- /* Create a new integer */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(result)));
-
- /* Save the Result */
-
- return_desc->integer.value = result;
- acpi_ex_truncate_for32bit_table(return_desc);
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_buffer
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the new buffer object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to a Buffer
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc)
-{
- union acpi_operand_object *return_desc;
- u8 *new_buf;
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_BUFFER:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_INTEGER:
-
- /*
- * Create a new Buffer object.
- * Need enough space for one integer
- */
- return_desc =
- acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy the integer to the buffer, LSB first */
-
- new_buf = return_desc->buffer.pointer;
- ACPI_MEMCPY(new_buf,
- &obj_desc->integer.value,
- acpi_gbl_integer_byte_width);
- break;
-
- case ACPI_TYPE_STRING:
-
- /*
- * Create a new Buffer object
- * Size will be the string length
- *
- * NOTE: Add one to the string length to include the null terminator.
- * The ACPI spec is unclear on this subject, but there is existing
- * ASL/AML code that depends on the null being transferred to the new
- * buffer.
- */
- return_desc = acpi_ut_create_buffer_object((acpi_size)
- obj_desc->string.
- length + 1);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy the string to the buffer */
-
- new_buf = return_desc->buffer.pointer;
- ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer,
- obj_desc->string.length);
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /* Mark buffer initialized */
-
- return_desc->common.flags |= AOPOBJ_DATA_VALID;
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_ascii
- *
- * PARAMETERS: Integer - Value to be converted
- * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
- * String - Where the string is returned
- * data_width - Size of data item to be converted, in bytes
- *
- * RETURN: Actual string length
- *
- * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string
- *
- ******************************************************************************/
-
-static u32
-acpi_ex_convert_to_ascii(acpi_integer integer,
- u16 base, u8 * string, u8 data_width)
-{
- acpi_integer digit;
- u32 i;
- u32 j;
- u32 k = 0;
- u32 hex_length;
- u32 decimal_length;
- u32 remainder;
- u8 supress_zeros;
-
- ACPI_FUNCTION_ENTRY();
-
- switch (base) {
- case 10:
-
- /* Setup max length for the decimal number */
-
- switch (data_width) {
- case 1:
- decimal_length = ACPI_MAX8_DECIMAL_DIGITS;
- break;
-
- case 4:
- decimal_length = ACPI_MAX32_DECIMAL_DIGITS;
- break;
-
- case 8:
- default:
- decimal_length = ACPI_MAX64_DECIMAL_DIGITS;
- break;
- }
-
- supress_zeros = TRUE; /* No leading zeros */
- remainder = 0;
-
- for (i = decimal_length; i > 0; i--) {
-
- /* Divide by nth factor of 10 */
-
- digit = integer;
- for (j = 0; j < i; j++) {
- (void)acpi_ut_short_divide(digit, 10, &digit,
- &remainder);
- }
-
- /* Handle leading zeros */
-
- if (remainder != 0) {
- supress_zeros = FALSE;
- }
-
- if (!supress_zeros) {
- string[k] = (u8) (ACPI_ASCII_ZERO + remainder);
- k++;
- }
- }
- break;
-
- case 16:
-
- /* hex_length: 2 ascii hex chars per data byte */
-
- hex_length = ACPI_MUL_2(data_width);
- for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
-
- /* Get one hex digit, most significant digits first */
-
- string[k] =
- (u8) acpi_ut_hex_to_ascii_char(integer,
- ACPI_MUL_4(j));
- k++;
- }
- break;
-
- default:
- return (0);
- }
-
- /*
- * Since leading zeros are suppressed, we must check for the case where
- * the integer equals 0
- *
- * Finally, null terminate the string and return the length
- */
- if (!k) {
- string[0] = ACPI_ASCII_ZERO;
- k = 1;
- }
-
- string[k] = 0;
- return ((u32) k);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_string
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the string object is returned
- * Type - String flags (base and conversion type)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to a string
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
- union acpi_operand_object ** result_desc, u32 type)
-{
- union acpi_operand_object *return_desc;
- u8 *new_buf;
- u32 i;
- u32 string_length = 0;
- u16 base = 16;
- u8 separator = ',';
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_STRING:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_INTEGER:
-
- switch (type) {
- case ACPI_EXPLICIT_CONVERT_DECIMAL:
-
- /* Make room for maximum decimal number */
-
- string_length = ACPI_MAX_DECIMAL_DIGITS;
- base = 10;
- break;
-
- default:
-
- /* Two hex string characters for each integer byte */
-
- string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width);
- break;
- }
-
- /*
- * Create a new String
- * Need enough space for one ASCII integer (plus null terminator)
- */
- return_desc =
- acpi_ut_create_string_object((acpi_size) string_length);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- new_buf = return_desc->buffer.pointer;
-
- /* Convert integer to string */
-
- string_length =
- acpi_ex_convert_to_ascii(obj_desc->integer.value, base,
- new_buf,
- acpi_gbl_integer_byte_width);
-
- /* Null terminate at the correct place */
-
- return_desc->string.length = string_length;
- new_buf[string_length] = 0;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Setup string length, base, and separator */
-
- switch (type) {
- case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */
- /*
- * From ACPI: "If Data is a buffer, it is converted to a string of
- * decimal values separated by commas."
- */
- base = 10;
-
- /*
- * Calculate the final string length. Individual string values
- * are variable length (include separator for each)
- */
- for (i = 0; i < obj_desc->buffer.length; i++) {
- if (obj_desc->buffer.pointer[i] >= 100) {
- string_length += 4;
- } else if (obj_desc->buffer.pointer[i] >= 10) {
- string_length += 3;
- } else {
- string_length += 2;
- }
- }
- break;
-
- case ACPI_IMPLICIT_CONVERT_HEX:
- /*
- * From the ACPI spec:
- *"The entire contents of the buffer are converted to a string of
- * two-character hexadecimal numbers, each separated by a space."
- */
- separator = ' ';
- string_length = (obj_desc->buffer.length * 3);
- break;
-
- case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */
- /*
- * From ACPI: "If Data is a buffer, it is converted to a string of
- * hexadecimal values separated by commas."
- */
- string_length = (obj_desc->buffer.length * 3);
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Create a new string object and string buffer
- * (-1 because of extra separator included in string_length from above)
- * Allow creation of zero-length strings from zero-length buffers.
- */
- if (string_length) {
- string_length--;
- }
-
- return_desc = acpi_ut_create_string_object((acpi_size)
- string_length);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- new_buf = return_desc->buffer.pointer;
-
- /*
- * Convert buffer bytes to hex or decimal values
- * (separated by commas or spaces)
- */
- for (i = 0; i < obj_desc->buffer.length; i++) {
- new_buf += acpi_ex_convert_to_ascii((acpi_integer)
- obj_desc->buffer.
- pointer[i], base,
- new_buf, 1);
- *new_buf++ = separator; /* each separated by a comma or space */
- }
-
- /*
- * Null terminate the string
- * (overwrites final comma/space from above)
- */
- if (obj_desc->buffer.length) {
- new_buf--;
- }
- *new_buf = 0;
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_target_type
- *
- * PARAMETERS: destination_type - Current type of the destination
- * source_desc - Source object to be converted.
- * result_desc - Where the converted object is returned
- * walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Implements "implicit conversion" rules for storing an object.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_target_type(acpi_object_type destination_type,
- union acpi_operand_object *source_desc,
- union acpi_operand_object **result_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_convert_to_target_type);
-
- /* Default behavior */
-
- *result_desc = source_desc;
-
- /*
- * If required by the target,
- * perform implicit conversion on the source before we store it.
- */
- switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) {
- case ARGI_SIMPLE_TARGET:
- case ARGI_FIXED_TARGET:
- case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */
-
- switch (destination_type) {
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- /*
- * Named field can always handle conversions
- */
- break;
-
- default:
- /* No conversion allowed for these types */
-
- if (destination_type !=
- ACPI_GET_OBJECT_TYPE(source_desc)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Explicit operator, will store (%s) over existing type (%s)\n",
- acpi_ut_get_object_type_name
- (source_desc),
- acpi_ut_get_type_name
- (destination_type)));
- status = AE_TYPE;
- }
- }
- break;
-
- case ARGI_TARGETREF:
-
- switch (destination_type) {
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
- /*
- * These types require an Integer operand. We can convert
- * a Buffer or a String to an Integer if necessary.
- */
- status =
- acpi_ex_convert_to_integer(source_desc, result_desc,
- 16);
- break;
-
- case ACPI_TYPE_STRING:
- /*
- * The operand must be a String. We can convert an
- * Integer or Buffer if necessary
- */
- status =
- acpi_ex_convert_to_string(source_desc, result_desc,
- ACPI_IMPLICIT_CONVERT_HEX);
- break;
-
- case ACPI_TYPE_BUFFER:
- /*
- * The operand must be a Buffer. We can convert an
- * Integer or String if necessary
- */
- status =
- acpi_ex_convert_to_buffer(source_desc, result_desc);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Bad destination type during conversion: %X",
- destination_type));
- status = AE_AML_INTERNAL;
- break;
- }
- break;
-
- case ARGI_REFERENCE:
- /*
- * create_xxxx_field cases - we are storing the field object into the name
- */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unknown Target type ID 0x%X AmlOpcode %X DestType %s",
- GET_CURRENT_ARG_TYPE(walk_state->op_info->
- runtime_args),
- walk_state->opcode,
- acpi_ut_get_type_name(destination_type)));
- status = AE_AML_INTERNAL;
- }
-
- /*
- * Source-to-Target conversion semantics:
- *
- * If conversion to the target type cannot be performed, then simply
- * overwrite the target with the new object and type.
- */
- if (status == AE_TYPE) {
- status = AE_OK;
- }
-
- return_ACPI_STATUS(status);
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.