| /****************************************************************************** |
| * |
| * Module Name: aeinitfile - Support for optional initialization file |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, 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 "aecommon.h" |
| #include "acdispat.h" |
| |
| #define _COMPONENT ACPI_TOOLS |
| ACPI_MODULE_NAME ("aeinitfile") |
| |
| |
| /* Local prototypes */ |
| |
| static void |
| AeDoOneOverride ( |
| char *Pathname, |
| char *ValueString, |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| ACPI_WALK_STATE *WalkState); |
| |
| |
| #define AE_FILE_BUFFER_SIZE 512 |
| |
| static char LineBuffer[AE_FILE_BUFFER_SIZE]; |
| static char NameBuffer[AE_FILE_BUFFER_SIZE]; |
| static char ValueBuffer[AE_FILE_BUFFER_SIZE]; |
| static FILE *InitFile; |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AeOpenInitializationFile |
| * |
| * PARAMETERS: Filename - Path to the init file |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Open the initialization file for the -fi option |
| * |
| *****************************************************************************/ |
| |
| int |
| AeOpenInitializationFile ( |
| char *Filename) |
| { |
| |
| InitFile = fopen (Filename, "r"); |
| if (!InitFile) |
| { |
| perror ("Could not open initialization file"); |
| return (-1); |
| } |
| |
| AcpiOsPrintf ("Opened initialization file [%s]\n", Filename); |
| return (0); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AeDoObjectOverrides |
| * |
| * PARAMETERS: None |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Read the initialization file and perform all overrides |
| * |
| * NOTE: The format of the file is multiple lines, each of format: |
| * <ACPI-pathname> <Integer Value> |
| * |
| *****************************************************************************/ |
| |
| void |
| AeDoObjectOverrides ( |
| void) |
| { |
| ACPI_OPERAND_OBJECT *ObjDesc; |
| ACPI_WALK_STATE *WalkState; |
| int i; |
| |
| |
| if (!InitFile) |
| { |
| return; |
| } |
| |
| /* Create needed objects to be reused for each init entry */ |
| |
| ObjDesc = AcpiUtCreateIntegerObject (0); |
| WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL); |
| NameBuffer[0] = '\\'; |
| |
| /* Read the entire file line-by-line */ |
| |
| while (fgets (LineBuffer, AE_FILE_BUFFER_SIZE, InitFile) != NULL) |
| { |
| if (sscanf (LineBuffer, "%s %s\n", |
| &NameBuffer[1], ValueBuffer) != 2) |
| { |
| goto CleanupAndExit; |
| } |
| |
| /* Add a root prefix if not present in the string */ |
| |
| i = 0; |
| if (NameBuffer[1] == '\\') |
| { |
| i = 1; |
| } |
| |
| AeDoOneOverride (&NameBuffer[i], ValueBuffer, ObjDesc, WalkState); |
| } |
| |
| /* Cleanup */ |
| |
| CleanupAndExit: |
| fclose (InitFile); |
| AcpiDsDeleteWalkState (WalkState); |
| AcpiUtRemoveReference (ObjDesc); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AeDoOneOverride |
| * |
| * PARAMETERS: Pathname - AML namepath |
| * ValueString - New integer value to be stored |
| * ObjDesc - Descriptor with integer override value |
| * WalkState - Used for the Store operation |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Perform an overrided for a single namespace object |
| * |
| *****************************************************************************/ |
| |
| static void |
| AeDoOneOverride ( |
| char *Pathname, |
| char *ValueString, |
| ACPI_OPERAND_OBJECT *ObjDesc, |
| ACPI_WALK_STATE *WalkState) |
| { |
| ACPI_HANDLE Handle; |
| ACPI_STATUS Status; |
| UINT64 Value; |
| |
| |
| AcpiOsPrintf ("Value Override: %s, ", Pathname); |
| |
| /* |
| * Get the namespace node associated with the override |
| * pathname from the init file. |
| */ |
| Status = AcpiGetHandle (NULL, Pathname, &Handle); |
| if (ACPI_FAILURE (Status)) |
| { |
| AcpiOsPrintf ("%s\n", AcpiFormatException (Status)); |
| return; |
| } |
| |
| /* Extract the 64-bit integer */ |
| |
| Status = AcpiUtStrtoul64 (ValueString, 0, &Value); |
| if (ACPI_FAILURE (Status)) |
| { |
| AcpiOsPrintf ("%s %s\n", ValueString, |
| AcpiFormatException (Status)); |
| return; |
| } |
| |
| ObjDesc->Integer.Value = Value; |
| |
| /* |
| * At the point this function is called, the namespace is fully |
| * built and initialized. We can simply store the new object to |
| * the target node. |
| */ |
| AcpiExEnterInterpreter (); |
| Status = AcpiExStore (ObjDesc, Handle, WalkState); |
| AcpiExExitInterpreter (); |
| |
| if (ACPI_FAILURE (Status)) |
| { |
| AcpiOsPrintf ("%s\n", AcpiFormatException (Status)); |
| return; |
| } |
| |
| AcpiOsPrintf ("New value: 0x%8.8X%8.8X\n", |
| ACPI_FORMAT_UINT64 (Value)); |
| } |