cregit-Linux how code gets into the kernel

Release 4.11 drivers/acpi/acpica/dbconvert.c

/*******************************************************************************
 *
 * 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); }

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/******************************************************************************* * * 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); }

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/******************************************************************************* * * 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); }

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/******************************************************************************* * * 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); }

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/******************************************************************************* * * 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 a 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); }

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Lv Zheng11394.96%133.33%
Robert Moore65.04%266.67%
Total119100.00%3100.00%

/******************************************************************************* * * 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, pld_info->panel); ACPI_PLD_SET_VERTICAL(&dword, pld_info->vertical_position); ACPI_PLD_SET_HORIZONTAL(&dword, pld_info->horizontal_position); ACPI_PLD_SET_SHAPE(&dword, pld_info->shape); ACPI_PLD_SET_ORIENTATION(&dword, pld_info->group_orientation); ACPI_PLD_SET_TOKEN(&dword, pld_info->group_token); ACPI_PLD_SET_POSITION(&dword, pld_info->group_position); ACPI_PLD_SET_BAY(&dword, pld_info->bay); ACPI_MOVE_32_TO_32(&buffer[2], &dword); /* Fourth 32 bits */ dword = 0; ACPI_PLD_SET_EJECTABLE(&dword, pld_info->ejectable); ACPI_PLD_SET_OSPM_EJECT(&dword, pld_info->ospm_eject_required); ACPI_PLD_SET_CABINET(&dword, pld_info->cabinet_number); ACPI_PLD_SET_CARD_CAGE(&dword, pld_info->card_cage_number); ACPI_PLD_SET_REFERENCE(&dword, pld_info->reference); ACPI_PLD_SET_ROTATION(&dword, pld_info->rotation); ACPI_PLD_SET_ORDER(&dword, pld_info->order); ACPI_MOVE_32_TO_32(&buffer[3], &dword); if (pld_info->revision >= 2) { /* Fifth 32 bits */ dword = 0; ACPI_PLD_SET_VERT_OFFSET(&dword, pld_info->vertical_offset); ACPI_PLD_SET_HORIZ_OFFSET(&dword, pld_info->horizontal_offset); ACPI_MOVE_32_TO_32(&buffer[4], &dword); } return (ACPI_CAST_PTR(u8, buffer)); }

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/******************************************************************************* * * FUNCTION: acpi_db_dump_pld_buffer * * PARAMETERS: obj_desc - Object returned from _PLD method * * RETURN: None. * * DESCRIPTION: Dumps formatted contents of a _PLD return buffer. * ******************************************************************************/ #define ACPI_PLD_OUTPUT "%20s : %-6X\n"
void acpi_db_dump_pld_buffer(union acpi_object *obj_desc) { union acpi_object *buffer_desc; struct acpi_pld_info *pld_info; u8 *new_buffer; acpi_status status; /* Object must be of type Package with at least one Buffer element */ if (obj_desc->type != ACPI_TYPE_PACKAGE) { return; } buffer_desc = &obj_desc->package.elements[0]; if (buffer_desc->type != ACPI_TYPE_BUFFER) { return; } /* Convert _PLD buffer to local _PLD struct */ status = acpi_decode_pld_buffer(buffer_desc->buffer.pointer, buffer_desc->buffer.length, &pld_info); if (ACPI_FAILURE(status)) { return; } /* Encode local _PLD struct back to a _PLD buffer */ new_buffer = acpi_db_encode_pld_buffer(pld_info); if (!new_buffer) { goto exit; } /* The two bit-packed buffers should match */ if (memcmp(new_buffer, buffer_desc->buffer.pointer, buffer_desc->buffer.length)) { acpi_os_printf ("Converted _PLD buffer does not compare. New:\n"); acpi_ut_dump_buffer(new_buffer, buffer_desc->buffer.length, DB_BYTE_DISPLAY, 0); } /* First 32-bit dword */ acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Revision", pld_info->revision); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_IgnoreColor", pld_info->ignore_color); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Red", pld_info->red); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Green", pld_info->green); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Blue", pld_info->blue); /* Second 32-bit dword */ acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Width", pld_info->width); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Height", pld_info->height); /* Third 32-bit dword */ acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_UserVisible", pld_info->user_visible); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Dock", pld_info->dock); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Lid", pld_info->lid); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Panel", pld_info->panel); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalPosition", pld_info->vertical_position); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalPosition", pld_info->horizontal_position); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Shape", pld_info->shape); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupOrientation", pld_info->group_orientation); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupToken", pld_info->group_token); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupPosition", pld_info->group_position); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Bay", pld_info->bay); /* Fourth 32-bit dword */ acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Ejectable", pld_info->ejectable); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_EjectRequired", pld_info->ospm_eject_required); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CabinetNumber", pld_info->cabinet_number); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CardCageNumber", pld_info->card_cage_number); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Reference", pld_info->reference); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Rotation", pld_info->rotation); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Order", pld_info->order); /* Fifth 32-bit dword */ if (buffer_desc->buffer.length > 16) { acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalOffset", pld_info->vertical_offset); acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalOffset", pld_info->horizontal_offset); } ACPI_FREE(new_buffer); exit: ACPI_FREE(pld_info); }

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Lv Zheng160399.07%116.67%
Robert Moore70.43%350.00%
Colin Ian King70.43%116.67%
Masahiro Yamada10.06%116.67%
Total1618100.00%6100.00%
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