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evevent.c (71867) evevent.c (73561)
1/******************************************************************************
2 *
3 * Module Name: evevent - Fixed and General Purpose AcpiEvent
4 * handling and dispatch
1/******************************************************************************
2 *
3 * Module Name: evevent - Fixed and General Purpose AcpiEvent
4 * handling and dispatch
5 * $Revision: 33 $
5 * $Revision: 34 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

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144 void)
145{
146 ACPI_STATUS Status;
147
148
149 FUNCTION_TRACE ("EvInitialize");
150
151
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

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144 void)
145{
146 ACPI_STATUS Status;
147
148
149 FUNCTION_TRACE ("EvInitialize");
150
151
152 /* Make sure we've got ACPI tables */
152 /* Make sure we have ACPI tables */
153
154 if (!AcpiGbl_DSDT)
155 {
156 DEBUG_PRINT (ACPI_WARN, ("EvInitialize: No ACPI tables present!\n"));
157 return_ACPI_STATUS (AE_NO_ACPI_TABLES);
158 }
159
160

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866 * dispatch the correct AML.
867 *
868 ******************************************************************************/
869
870UINT32
871AcpiEvGpeDispatch (
872 UINT32 GpeNumber)
873{
153
154 if (!AcpiGbl_DSDT)
155 {
156 DEBUG_PRINT (ACPI_WARN, ("EvInitialize: No ACPI tables present!\n"));
157 return_ACPI_STATUS (AE_NO_ACPI_TABLES);
158 }
159
160

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866 * dispatch the correct AML.
867 *
868 ******************************************************************************/
869
870UINT32
871AcpiEvGpeDispatch (
872 UINT32 GpeNumber)
873{
874 ACPI_GPE_LEVEL_INFO GpeInfo;
874 ACPI_GPE_LEVEL_INFO GpeInfo;
875
876 FUNCTION_TRACE ("EvGpeDispatch");
877
878 /*DEBUG_INCREMENT_EVENT_COUNT (EVENT_GENERAL);*/
879
880 /*
881 * Valid GPE number?
882 */
883 if (AcpiGbl_GpeValid[GpeNumber] == ACPI_GPE_INVALID)
884 {
885 DEBUG_PRINT (ACPI_ERROR, ("Invalid GPE bit [%X].\n", GpeNumber));
886 return_VALUE (INTERRUPT_NOT_HANDLED);
887 }
888
889 /*
890 * Disable the GPE.
891 */
892 AcpiHwDisableGpe (GpeNumber);
893
875
876 FUNCTION_TRACE ("EvGpeDispatch");
877
878 /*DEBUG_INCREMENT_EVENT_COUNT (EVENT_GENERAL);*/
879
880 /*
881 * Valid GPE number?
882 */
883 if (AcpiGbl_GpeValid[GpeNumber] == ACPI_GPE_INVALID)
884 {
885 DEBUG_PRINT (ACPI_ERROR, ("Invalid GPE bit [%X].\n", GpeNumber));
886 return_VALUE (INTERRUPT_NOT_HANDLED);
887 }
888
889 /*
890 * Disable the GPE.
891 */
892 AcpiHwDisableGpe (GpeNumber);
893
894 GpeInfo = AcpiGbl_GpeInfo [GpeNumber];
894 GpeInfo = AcpiGbl_GpeInfo [GpeNumber];
895
895
896 /*
897 * Edge-Triggered?
898 * ---------------
899 * If edge-triggered, clear the GPE status bit now. Note that
900 * level-triggered events are cleared after the GPE is serviced.
901 */
902 if (GpeInfo.Type & ACPI_EVENT_EDGE_TRIGGERED)
896 /*
897 * Edge-Triggered?
898 * ---------------
899 * If edge-triggered, clear the GPE status bit now. Note that
900 * level-triggered events are cleared after the GPE is serviced.
901 */
902 if (GpeInfo.Type & ACPI_EVENT_EDGE_TRIGGERED)
903 {
903 {
904 AcpiHwClearGpe (GpeNumber);
905 }
906
904 AcpiHwClearGpe (GpeNumber);
905 }
907 /*
908 * Function Handler (e.g. EC)?
909 */
906 /*
907 * Function Handler (e.g. EC)?
908 */
910 if (GpeInfo.Handler)
909 if (GpeInfo.Handler)
911 {
910 {
912 /* Invoke function handler (at interrupt level). */
913 GpeInfo.Handler (GpeInfo.Context);
911 /* Invoke function handler (at interrupt level). */
912 GpeInfo.Handler (GpeInfo.Context);
914
913
915 /* Level-Triggered? */
916 if (GpeInfo.Type & ACPI_EVENT_LEVEL_TRIGGERED)
914 /* Level-Triggered? */
915 if (GpeInfo.Type & ACPI_EVENT_LEVEL_TRIGGERED)
917 {
916 {
918 AcpiHwClearGpe (GpeNumber);
919 }
920
921 /* Enable GPE */
922 AcpiHwEnableGpe (GpeNumber);
917 AcpiHwClearGpe (GpeNumber);
923 }
918 }
924 /*
925 * Method Handler (e.g. _Exx/_Lxx)?
926 */
927 else if (GpeInfo.MethodHandle)
919
920 /* Enable GPE */
921 AcpiHwEnableGpe (GpeNumber);
922 }
923 /*
924 * Method Handler (e.g. _Exx/_Lxx)?
925 */
926 else if (GpeInfo.MethodHandle)
928 {
927 {
929 if (ACPI_FAILURE(AcpiOsQueueForExecution (OSD_PRIORITY_GPE,
928 if (ACPI_FAILURE(AcpiOsQueueForExecution (OSD_PRIORITY_GPE,
930 AcpiEvAsynchExecuteGpeMethod, (void*)(NATIVE_UINT)GpeNumber)))
929 AcpiEvAsynchExecuteGpeMethod, (void*)(NATIVE_UINT)GpeNumber)))
931 {
932 /*
933 * Shoudn't occur, but if it does report an error. Note that
934 * the GPE will remain disabled until the ACPI Core Subsystem
935 * is restarted, or the handler is removed/reinstalled.
936 */
937 REPORT_ERROR (("AcpiEvGpeDispatch: Unable to queue handler for GPE bit [%X]\n", GpeNumber));
938 }
930 {
931 /*
932 * Shoudn't occur, but if it does report an error. Note that
933 * the GPE will remain disabled until the ACPI Core Subsystem
934 * is restarted, or the handler is removed/reinstalled.
935 */
936 REPORT_ERROR (("AcpiEvGpeDispatch: Unable to queue handler for GPE bit [%X]\n", GpeNumber));
939 }
937 }
940 /*
941 * No Handler? Report an error and leave the GPE disabled.
942 */
943 else
938 }
939 /*
940 * No Handler? Report an error and leave the GPE disabled.
941 */
942 else
944 {
943 {
945 REPORT_ERROR (("AcpiEvGpeDispatch: No installed handler for GPE [%X]\n", GpeNumber));
944 REPORT_ERROR (("AcpiEvGpeDispatch: No installed handler for GPE [%X]\n", GpeNumber));
946
945
947 /* Level-Triggered? */
948 if (GpeInfo.Type & ACPI_EVENT_LEVEL_TRIGGERED)
946 /* Level-Triggered? */
947 if (GpeInfo.Type & ACPI_EVENT_LEVEL_TRIGGERED)
949 {
948 {
950 AcpiHwClearGpe (GpeNumber);
951 }
949 AcpiHwClearGpe (GpeNumber);
952 }
950 }
951 }
953
954 return_VALUE (INTERRUPT_HANDLED);
955}
952
953 return_VALUE (INTERRUPT_HANDLED);
954}