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author | msmith <msmith@FreeBSD.org> | 2001-01-31 09:17:50 +0000 |
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committer | msmith <msmith@FreeBSD.org> | 2001-01-31 09:17:50 +0000 |
commit | 7948a3a80426e7bdc0728814e72cf46852c46576 (patch) | |
tree | 5ed7785feb928c9fe57c2d7175f89660521314a4 /sys/contrib/dev/acpica/hwsleep.c | |
parent | 68d9171019852e7a4325965a2539a5a2eb7571da (diff) | |
download | FreeBSD-src-7948a3a80426e7bdc0728814e72cf46852c46576.zip FreeBSD-src-7948a3a80426e7bdc0728814e72cf46852c46576.tar.gz |
Update to the 20010125 ACPI CA snapshot.
Diffstat (limited to 'sys/contrib/dev/acpica/hwsleep.c')
-rw-r--r-- | sys/contrib/dev/acpica/hwsleep.c | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/hwsleep.c b/sys/contrib/dev/acpica/hwsleep.c new file mode 100644 index 0000000..81305a8 --- /dev/null +++ b/sys/contrib/dev/acpica/hwsleep.c @@ -0,0 +1,296 @@ + +/****************************************************************************** + * + * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface + * $Revision: 5 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 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. + * + *****************************************************************************/ + +#include "acpi.h" +#include "acnamesp.h" +#include "achware.h" + +#define _COMPONENT HARDWARE + MODULE_NAME ("hwsleep") + + +/****************************************************************************** + * + * FUNCTION: AcpiSetFirmwareWakingVector + * + * PARAMETERS: PhysicalAddress - Physical address of ACPI real mode + * entry point. + * + * RETURN: AE_OK or AE_ERROR + * + * DESCRIPTION: Access function for dFirmwareWakingVector field in FACS + * + ******************************************************************************/ + +ACPI_STATUS +AcpiSetFirmwareWakingVector ( + ACPI_PHYSICAL_ADDRESS PhysicalAddress) +{ + + FUNCTION_TRACE ("AcpiSetFirmwareWakingVector"); + + + /* Make sure that we have an FACS */ + + if (!AcpiGbl_FACS) + { + return_ACPI_STATUS (AE_NO_ACPI_TABLES); + } + + /* Set the vector */ + + if (AcpiGbl_FACS->VectorWidth == 32) + { + * (UINT32 *) AcpiGbl_FACS->FirmwareWakingVector = (UINT32) PhysicalAddress; + } + else + { + *AcpiGbl_FACS->FirmwareWakingVector = PhysicalAddress; + } + + return_ACPI_STATUS (AE_OK); +} + + +/****************************************************************************** + * + * FUNCTION: AcpiGetFirmwareWakingVector + * + * PARAMETERS: *PhysicalAddress - Output buffer where contents of + * the FirmwareWakingVector field of + * the FACS will be stored. + * + * RETURN: Status + * + * DESCRIPTION: Access function for dFirmwareWakingVector field in FACS + * + ******************************************************************************/ + +ACPI_STATUS +AcpiGetFirmwareWakingVector ( + ACPI_PHYSICAL_ADDRESS *PhysicalAddress) +{ + + FUNCTION_TRACE ("AcpiGetFirmwareWakingVector"); + + + if (!PhysicalAddress) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Make sure that we have an FACS */ + + if (!AcpiGbl_FACS) + { + return_ACPI_STATUS (AE_NO_ACPI_TABLES); + } + + /* Get the vector */ + + if (AcpiGbl_FACS->VectorWidth == 32) + { + *PhysicalAddress = * (UINT32 *) AcpiGbl_FACS->FirmwareWakingVector; + } + else + { + *PhysicalAddress = *AcpiGbl_FACS->FirmwareWakingVector; + } + + return_ACPI_STATUS (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: AcpiEnterSleepState + * + * PARAMETERS: SleepState - Which sleep state to enter + * + * RETURN: Status + * + * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEnterSleepState ( + UINT8 SleepState) +{ + ACPI_STATUS Status; + ACPI_OBJECT_LIST ArgList; + ACPI_OBJECT Arg; + UINT8 TypeA; + UINT8 TypeB; + UINT16 PM1AControl; + UINT16 PM1BControl; + + FUNCTION_TRACE ("AcpiEnterSleepState"); + + /* + * _PSW methods could be run here to enable wake-on keyboard, LAN, etc. + */ + + Status = AcpiHwObtainSleepTypeRegisterData(SleepState, &TypeA, &TypeB); + + if (!ACPI_SUCCESS(Status)) + { + return Status; + } + + /* run the _PTS and _GTS methods */ + MEMSET(&ArgList, 0, sizeof(ArgList)); + ArgList.Count = 1; + ArgList.Pointer = &Arg; + + MEMSET(&Arg, 0, sizeof(Arg)); + Arg.Type = ACPI_TYPE_INTEGER; + Arg.Integer.Value = SleepState; + + AcpiEvaluateObject(NULL, "\\_PTS", &ArgList, NULL); + AcpiEvaluateObject(NULL, "\\_GTS", &ArgList, NULL); + + /* clear wake status */ + AcpiHwRegisterBitAccess(ACPI_WRITE, ACPI_MTX_LOCK, WAK_STS, 1); + + PM1AControl = (UINT16) AcpiHwRegisterRead(ACPI_MTX_LOCK, PM1_CONTROL); + + /* mask off SLP_EN and SLP_TYP fields */ + PM1AControl &= 0xC3FF; + + /* mask in SLP_EN */ + PM1AControl |= (1 << AcpiHwGetBitShift (SLP_EN_MASK)); + + PM1BControl = PM1AControl; + + /* mask in SLP_TYP */ + PM1AControl |= (TypeA << AcpiHwGetBitShift (SLP_TYPE_X_MASK)); + PM1BControl |= (TypeB << AcpiHwGetBitShift (SLP_TYPE_X_MASK)); + + DEBUG_PRINT(ACPI_OK, ("Entering S%d\n", SleepState)); + + /* the old version was disabling interrupts. let's try it without + * and see how that works + */ + /*disable();*/ + + AcpiHwRegisterWrite(ACPI_MTX_LOCK, PM1A_CONTROL, PM1AControl); + AcpiHwRegisterWrite(ACPI_MTX_LOCK, PM1B_CONTROL, PM1BControl); + + /*enable();*/ + + return_ACPI_STATUS (AE_OK); +} |