diff options
Diffstat (limited to 'sys/contrib/dev/acpica/Subsystem/Hardware/hwacpi.c')
| -rw-r--r-- | sys/contrib/dev/acpica/Subsystem/Hardware/hwacpi.c | 446 |
1 files changed, 0 insertions, 446 deletions
diff --git a/sys/contrib/dev/acpica/Subsystem/Hardware/hwacpi.c b/sys/contrib/dev/acpica/Subsystem/Hardware/hwacpi.c deleted file mode 100644 index d8b5f10f4182..000000000000 --- a/sys/contrib/dev/acpica/Subsystem/Hardware/hwacpi.c +++ /dev/null @@ -1,446 +0,0 @@ - -/****************************************************************************** - * - * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface - * $Revision: 36 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 "acpi.h" -#include "achware.h" - - -#define _COMPONENT HARDWARE - MODULE_NAME ("hwacpi") - - -/****************************************************************************** - * - * FUNCTION: AcpiHwInitialize - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Initialize and validate various ACPI registers - * - ******************************************************************************/ - -ACPI_STATUS -AcpiHwInitialize ( - void) -{ - ACPI_STATUS Status = AE_OK; - UINT32 Index; - - - FUNCTION_TRACE ("HwInitialize"); - - - /* We must have the ACPI tables by the time we get here */ - - if (!AcpiGbl_FADT) - { - AcpiGbl_RestoreAcpiChipset = FALSE; - - DEBUG_PRINT (ACPI_ERROR, ("HwInitialize: No FADT!\n")); - - return_ACPI_STATUS (AE_NO_ACPI_TABLES); - } - - /* Must support *some* mode! */ -/* - if (!(SystemFlags & SYS_MODES_MASK)) - { - RestoreAcpiChipset = FALSE; - - DEBUG_PRINT (ACPI_ERROR, - ("CmHardwareInitialize: Supported modes uninitialized!\n")); - return_ACPI_STATUS (AE_ERROR); - } - -*/ - - - switch (AcpiGbl_SystemFlags & SYS_MODES_MASK) - { - /* Identify current ACPI/legacy mode */ - - case (SYS_MODE_ACPI): - - AcpiGbl_OriginalMode = SYS_MODE_ACPI; - DEBUG_PRINT (ACPI_INFO, ("System supports ACPI mode only.\n")); - break; - - - case (SYS_MODE_LEGACY): - - AcpiGbl_OriginalMode = SYS_MODE_LEGACY; - DEBUG_PRINT (ACPI_INFO, - ("Tables loaded from buffer, hardware assumed to support LEGACY mode only.\n")); - break; - - - case (SYS_MODE_ACPI | SYS_MODE_LEGACY): - - if (AcpiHwGetMode () == SYS_MODE_ACPI) - { - AcpiGbl_OriginalMode = SYS_MODE_ACPI; - } - else - { - AcpiGbl_OriginalMode = SYS_MODE_LEGACY; - } - - DEBUG_PRINT (ACPI_INFO, - ("System supports both ACPI and LEGACY modes.\n")); - - DEBUG_PRINT (ACPI_INFO, - ("System is currently in %s mode.\n", - (AcpiGbl_OriginalMode == SYS_MODE_ACPI) ? "ACPI" : "LEGACY")); - break; - } - - - if (AcpiGbl_SystemFlags & SYS_MODE_ACPI) - { - /* Target system supports ACPI mode */ - - /* - * The purpose of this code is to save the initial state - * of the ACPI event enable registers. An exit function will be - * registered which will restore this state when the application - * exits. The exit function will also clear all of the ACPI event - * status bits prior to restoring the original mode. - * - * The location of the PM1aEvtBlk enable registers is defined as the - * base of PM1aEvtBlk + DIV_2(PM1aEvtBlkLength). Since the spec further - * fully defines the PM1aEvtBlk to be a total of 4 bytes, the offset - * for the enable registers is always 2 from the base. It is hard - * coded here. If this changes in the spec, this code will need to - * be modified. The PM1bEvtBlk behaves as expected. - */ - - AcpiGbl_Pm1EnableRegisterSave = (UINT16) AcpiHwRegisterRead (ACPI_MTX_LOCK, PM1_EN); - - - /* - * The GPEs behave similarly, except that the length of the register - * block is not fixed, so the buffer must be allocated with malloc - */ - - if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe0Blk.Address) && - AcpiGbl_FADT->Gpe0BlkLen) - { - /* GPE0 specified in FADT */ - - AcpiGbl_Gpe0EnableRegisterSave = - AcpiCmAllocate (DIV_2 (AcpiGbl_FADT->Gpe0BlkLen)); - if (!AcpiGbl_Gpe0EnableRegisterSave) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* Save state of GPE0 enable bits */ - - for (Index = 0; Index < DIV_2 (AcpiGbl_FADT->Gpe0BlkLen); Index++) - { - AcpiGbl_Gpe0EnableRegisterSave[Index] = - (UINT8) AcpiHwRegisterRead (ACPI_MTX_LOCK, GPE0_EN_BLOCK | Index); - } - } - - else - { - AcpiGbl_Gpe0EnableRegisterSave = NULL; - } - - if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe1Blk.Address) && - AcpiGbl_FADT->Gpe1BlkLen) - { - /* GPE1 defined */ - - AcpiGbl_Gpe1EnableRegisterSave = - AcpiCmAllocate (DIV_2 (AcpiGbl_FADT->Gpe1BlkLen)); - if (!AcpiGbl_Gpe1EnableRegisterSave) - { - return_ACPI_STATUS (AE_NO_MEMORY); - } - - /* save state of GPE1 enable bits */ - - for (Index = 0; Index < DIV_2 (AcpiGbl_FADT->Gpe1BlkLen); Index++) - { - AcpiGbl_Gpe1EnableRegisterSave[Index] = - (UINT8) AcpiHwRegisterRead (ACPI_MTX_LOCK, GPE1_EN_BLOCK | Index); - } - } - - else - { - AcpiGbl_Gpe1EnableRegisterSave = NULL; - } - } - - return_ACPI_STATUS (Status); -} - - -/****************************************************************************** - * - * FUNCTION: AcpiHwSetMode - * - * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY - * - * RETURN: Status - * - * DESCRIPTION: Transitions the system into the requested mode or does nothing - * if the system is already in that mode. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiHwSetMode ( - UINT32 Mode) -{ - - ACPI_STATUS Status = AE_ERROR; - - FUNCTION_TRACE ("HwSetMode"); - - - if (Mode == SYS_MODE_ACPI) - { - /* BIOS should have disabled ALL fixed and GP events */ - - AcpiOsOut8 (AcpiGbl_FADT->SmiCmd, AcpiGbl_FADT->AcpiEnable); - DEBUG_PRINT (ACPI_INFO, ("Attempting to enable ACPI mode\n")); - } - - else if (Mode == SYS_MODE_LEGACY) - { - /* - * BIOS should clear all fixed status bits and restore fixed event - * enable bits to default - */ - - AcpiOsOut8 (AcpiGbl_FADT->SmiCmd, AcpiGbl_FADT->AcpiDisable); - DEBUG_PRINT (ACPI_INFO, - ("Attempting to enable Legacy (non-ACPI) mode\n")); - } - - if (AcpiHwGetMode () == Mode) - { - DEBUG_PRINT (ACPI_INFO, ("Mode %X successfully enabled\n", Mode)); - Status = AE_OK; - } - - return_ACPI_STATUS (Status); -} - - -/****************************************************************************** - * - * 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) -{ - - FUNCTION_TRACE ("HwGetMode"); - - - if (AcpiHwRegisterBitAccess (ACPI_READ, ACPI_MTX_LOCK, SCI_EN)) - { - return_VALUE (SYS_MODE_ACPI); - } - else - { - return_VALUE (SYS_MODE_LEGACY); - } -} - -/****************************************************************************** - * - * FUNCTION: AcpiHwGetModeCapabilities - * - * PARAMETERS: none - * - * RETURN: logical OR of SYS_MODE_ACPI and SYS_MODE_LEGACY determined at initial - * system state. - * - * DESCRIPTION: Returns capablities of system - * - ******************************************************************************/ - -UINT32 -AcpiHwGetModeCapabilities (void) -{ - - FUNCTION_TRACE ("HwGetModeCapabilities"); - - - if (!(AcpiGbl_SystemFlags & SYS_MODES_MASK)) - { - if (AcpiHwGetMode () == SYS_MODE_LEGACY) - { - /* - * Assume that if this call is being made, AcpiInit has been called - * and ACPI support has been established by the presence of the - * tables. Therefore since we're in SYS_MODE_LEGACY, the system - * must support both modes - */ - - AcpiGbl_SystemFlags |= (SYS_MODE_ACPI | SYS_MODE_LEGACY); - } - - else - { - /* TBD: [Investigate] !!! this may be unsafe... */ - /* - * system is is ACPI mode, so try to switch back to LEGACY to see if - * it is supported - */ - AcpiHwSetMode (SYS_MODE_LEGACY); - - if (AcpiHwGetMode () == SYS_MODE_LEGACY) - { - /* Now in SYS_MODE_LEGACY, so both are supported */ - - AcpiGbl_SystemFlags |= (SYS_MODE_ACPI | SYS_MODE_LEGACY); - AcpiHwSetMode (SYS_MODE_ACPI); - } - - else - { - /* Still in SYS_MODE_ACPI so this must be an ACPI only system */ - - AcpiGbl_SystemFlags |= SYS_MODE_ACPI; - } - } - } - - return_VALUE (AcpiGbl_SystemFlags & SYS_MODES_MASK); -} - - |