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Diffstat (limited to 'source/os_specific/service_layers/oslibcfs.c')
| -rw-r--r-- | source/os_specific/service_layers/oslibcfs.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/source/os_specific/service_layers/oslibcfs.c b/source/os_specific/service_layers/oslibcfs.c new file mode 100644 index 000000000..26c1a8fed --- /dev/null +++ b/source/os_specific/service_layers/oslibcfs.c @@ -0,0 +1,330 @@ +/****************************************************************************** + * + * Module Name: oslibcfs - C library OSL for file I/O + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2016, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + *****************************************************************************/ + +#include "acpi.h" +#include <stdio.h> +#include <stdarg.h> + +#define _COMPONENT ACPI_OS_SERVICES + ACPI_MODULE_NAME ("oslibcfs") + + +/******************************************************************************* + * + * FUNCTION: AcpiOsOpenFile + * + * PARAMETERS: Path - File path + * Modes - File operation type + * + * RETURN: File descriptor. + * + * DESCRIPTION: Open a file for reading (ACPI_FILE_READING) or/and writing + * (ACPI_FILE_WRITING). + * + ******************************************************************************/ + +ACPI_FILE +AcpiOsOpenFile ( + const char *Path, + UINT8 Modes) +{ + ACPI_FILE File; + UINT32 i = 0; + char ModesStr[4]; + + + if (Modes & ACPI_FILE_READING) + { + ModesStr[i++] = 'r'; + } + if (Modes & ACPI_FILE_WRITING) + { + ModesStr[i++] = 'w'; + } + + if (Modes & ACPI_FILE_BINARY) + { + ModesStr[i++] = 'b'; + } + + ModesStr[i++] = '\0'; + + File = fopen (Path, ModesStr); + if (!File) + { + perror ("Could not open file"); + } + + return (File); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsCloseFile + * + * PARAMETERS: File - An open file descriptor + * + * RETURN: None. + * + * DESCRIPTION: Close a file opened via AcpiOsOpenFile. + * + ******************************************************************************/ + +void +AcpiOsCloseFile ( + ACPI_FILE File) +{ + + fclose (File); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsReadFile + * + * PARAMETERS: File - An open file descriptor + * Buffer - Data buffer + * Size - Data block size + * Count - Number of data blocks + * + * RETURN: Number of bytes actually read. + * + * DESCRIPTION: Read from a file. + * + ******************************************************************************/ + +int +AcpiOsReadFile ( + ACPI_FILE File, + void *Buffer, + ACPI_SIZE Size, + ACPI_SIZE Count) +{ + int Length; + + + Length = fread (Buffer, Size, Count, File); + if (Length < 0) + { + perror ("Error reading file"); + } + + return (Length); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsWriteFile + * + * PARAMETERS: File - An open file descriptor + * Buffer - Data buffer + * Size - Data block size + * Count - Number of data blocks + * + * RETURN: Number of bytes actually written. + * + * DESCRIPTION: Write to a file. + * + ******************************************************************************/ + +int +AcpiOsWriteFile ( + ACPI_FILE File, + void *Buffer, + ACPI_SIZE Size, + ACPI_SIZE Count) +{ + int Length; + + + Length = fwrite (Buffer, Size, Count, File); + if (Length < 0) + { + perror ("Error writing file"); + } + + return (Length); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsGetFileOffset + * + * PARAMETERS: File - An open file descriptor + * + * RETURN: Current file pointer position. + * + * DESCRIPTION: Get current file offset. + * + ******************************************************************************/ + +long +AcpiOsGetFileOffset ( + ACPI_FILE File) +{ + long Offset; + + + Offset = ftell (File); + return (Offset); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsSetFileOffset + * + * PARAMETERS: File - An open file descriptor + * Offset - New file offset + * From - From begin/end of file + * + * RETURN: Status + * + * DESCRIPTION: Set current file offset. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiOsSetFileOffset ( + ACPI_FILE File, + long Offset, + UINT8 From) +{ + int Ret = 0; + + + if (From == ACPI_FILE_BEGIN) + { + Ret = fseek (File, Offset, SEEK_SET); + } + + if (From == ACPI_FILE_END) + { + Ret = fseek (File, Offset, SEEK_END); + } + + if (Ret < 0) + { + return (AE_ERROR); + } + else + { + return (AE_OK); + } +} |