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Diffstat (limited to 'sys/contrib/dev/acpica/hwacpi.c')
| -rw-r--r-- | sys/contrib/dev/acpica/hwacpi.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/sys/contrib/dev/acpica/hwacpi.c b/sys/contrib/dev/acpica/hwacpi.c deleted file mode 100644 index 3c9bce9..0000000 --- a/sys/contrib/dev/acpica/hwacpi.c +++ /dev/null @@ -1,277 +0,0 @@ - -/****************************************************************************** - * - * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface - * $Revision: 1.78 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2007, 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. - * - *****************************************************************************/ - -#define __HWACPI_C__ - -#include <contrib/dev/acpica/acpi.h> - - -#define _COMPONENT ACPI_HARDWARE - ACPI_MODULE_NAME ("hwacpi") - - -/****************************************************************************** - * - * FUNCTION: AcpiHwSetMode - * - * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY - * - * RETURN: Status - * - * DESCRIPTION: Transitions the system into the requested mode. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiHwSetMode ( - UINT32 Mode) -{ - - ACPI_STATUS Status; - UINT32 Retry; - - - ACPI_FUNCTION_TRACE (HwSetMode); - - /* - * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, - * system does not support mode transition. - */ - if (!AcpiGbl_FADT.SmiCommand) - { - ACPI_ERROR ((AE_INFO, "No SMI_CMD in FADT, mode transition failed")); - return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); - } - - /* - * ACPI 2.0 clarified the meaning of ACPI_ENABLE and ACPI_DISABLE - * in FADT: If it is zero, enabling or disabling is not supported. - * As old systems may have used zero for mode transition, - * we make sure both the numbers are zero to determine these - * transitions are not supported. - */ - if (!AcpiGbl_FADT.AcpiEnable && !AcpiGbl_FADT.AcpiDisable) - { - ACPI_ERROR ((AE_INFO, - "No ACPI mode transition supported in this system (enable/disable both zero)")); - return_ACPI_STATUS (AE_OK); - } - - switch (Mode) - { - case ACPI_SYS_MODE_ACPI: - - /* BIOS should have disabled ALL fixed and GP events */ - - Status = AcpiOsWritePort (AcpiGbl_FADT.SmiCommand, - (UINT32) AcpiGbl_FADT.AcpiEnable, 8); - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Attempting to enable ACPI mode\n")); - break; - - case ACPI_SYS_MODE_LEGACY: - - /* - * BIOS should clear all fixed status bits and restore fixed event - * enable bits to default - */ - Status = AcpiOsWritePort (AcpiGbl_FADT.SmiCommand, - (UINT32) AcpiGbl_FADT.AcpiDisable, 8); - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Attempting to enable Legacy (non-ACPI) mode\n")); - break; - - default: - return_ACPI_STATUS (AE_BAD_PARAMETER); - } - - if (ACPI_FAILURE (Status)) - { - ACPI_EXCEPTION ((AE_INFO, Status, - "Could not write ACPI mode change")); - return_ACPI_STATUS (Status); - } - - /* - * Some hardware takes a LONG time to switch modes. Give them 3 sec to - * do so, but allow faster systems to proceed more quickly. - */ - Retry = 3000; - while (Retry) - { - if (AcpiHwGetMode() == Mode) - { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Mode %X successfully enabled\n", - Mode)); - return_ACPI_STATUS (AE_OK); - } - AcpiOsStall(1000); - Retry--; - } - - ACPI_ERROR ((AE_INFO, "Hardware did not change modes")); - return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiHwGetMode - * - * PARAMETERS: none - * - * RETURN: SYS_MODE_ACPI or SYS_MODE_LEGACY - * - * DESCRIPTION: Return current operating state of system. Determined by - * querying the SCI_EN bit. - * - ******************************************************************************/ - -UINT32 -AcpiHwGetMode ( - void) -{ - ACPI_STATUS Status; - UINT32 Value; - - - ACPI_FUNCTION_TRACE (HwGetMode); - - - /* - * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, - * system does not support mode transition. - */ - if (!AcpiGbl_FADT.SmiCommand) - { - return_UINT32 (ACPI_SYS_MODE_ACPI); - } - - Status = AcpiGetRegister (ACPI_BITREG_SCI_ENABLE, &Value); - if (ACPI_FAILURE (Status)) - { - return_UINT32 (ACPI_SYS_MODE_LEGACY); - } - - if (Value) - { - return_UINT32 (ACPI_SYS_MODE_ACPI); - } - else - { - return_UINT32 (ACPI_SYS_MODE_LEGACY); - } -} |
