Add interrupt command to acpiexec

This commit add the Interrupt command to acpiexec.
The Interrupt command simulates an interrupt with a IntID (GSIV)
equal to the first argument of the call.

The acpiexec code simulates the behaviour by OSPM: execute the _EVT
method of the GED device associated with that IntID.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>
Signed-off-by: Jose Marinho <jose.marinho@arm.com>

3 files changed, 71 insertions, 1 deletions

diff --git a/source/components/debugger/dbcmds.c b/source/components/debugger/dbcmds.c
index b8c2b4228..6636f7b97 100644
--- a/source/components/debugger/dbcmds.c
+++ b/source/components/debugger/dbcmds.c
@@ -156,7 +156,7 @@
 #include "acnamesp.h"
 #include "acresrc.h"
 #include "actables.h"
-
+#include "limits.h"
 
 #define _COMPONENT          ACPI_CA_DEBUGGER
         ACPI_MODULE_NAME    ("dbcmds")
@@ -1291,6 +1291,64 @@ AcpiDbDisplayResources (
 }
 
 
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDbGenerateGed
+ *
+ * PARAMETERS:  GedArg              - Raw GED number, ascii string
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Simulate firing of a GED
+ *
+ ******************************************************************************/
+
+void
+AcpiDbGenerateInterrupt (
+    char *GsivArg)
+{
+    UINT32      GsivNumber;
+    ACPI_GED_HANDLER_INFO *GedInfo = AcpiGbl_GedHandlerList;
+
+	if (!GedInfo) {
+		AcpiOsPrintf ("No GED handling present\n");
+	}
+
+    GsivNumber = strtoul (GsivArg, NULL, 0);
+
+	while (GedInfo) {
+
+		if (GedInfo->IntId == GsivNumber) {
+			ACPI_OBJECT_LIST ArgList;
+			ACPI_OBJECT Arg0;
+			ACPI_HANDLE EvtHandle = GedInfo->EvtMethod;
+			ACPI_STATUS Status;
+
+			AcpiOsPrintf ("Evaluate GED _EVT (GSIV=%d)\n", GsivNumber);
+
+			if (!EvtHandle) {
+				AcpiOsPrintf ("Undefined _EVT method\n");
+				return;
+			}
+
+			Arg0.Integer.Type = ACPI_TYPE_INTEGER;
+			Arg0.Integer.Value = GsivNumber;
+
+			ArgList.Count = 1;
+			ArgList.Pointer = &Arg0;
+
+			Status = AcpiEvaluateObject (EvtHandle, NULL, &ArgList, NULL);
+			if (ACPI_FAILURE (Status))
+			{
+				AcpiOsPrintf ("Could not evaluate _EVT\n");
+				return;
+			}
+
+		}
+		GedInfo = GedInfo->Next;
+	}
+}
+
 #if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
  *
diff --git a/source/components/debugger/dbinput.c b/source/components/debugger/dbinput.c
index 5e5c62893..d98c24870 100644
--- a/source/components/debugger/dbinput.c
+++ b/source/components/debugger/dbinput.c
@@ -264,6 +264,7 @@ enum AcpiExDebuggerCommands
     CMD_THREADS,
 
     CMD_TEST,
+	CMD_INTERRUPT,
 #endif
 };
 
@@ -345,6 +346,7 @@ static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
     {"THREADS",      3},
 
     {"TEST",         1},
+    {"INTERRUPT",    1},
 #endif
     {NULL,           0}
 };
@@ -461,6 +463,7 @@ static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
     {1, "  Gpes",                               "Display info on all GPE devices\n"},
     {1, "  Sci",                                "Generate an SCI\n"},
     {1, "  Sleep [SleepState]",                 "Simulate sleep/wake sequence(s) (0-5)\n"},
+    {1, "  Interrupt <GSIV>",                   "Simulate an interrupt\n"},
 #endif
     {0, NULL, NULL}
 };
@@ -1263,6 +1266,11 @@ AcpiDbCommandDispatch (
         AcpiOsPrintf ("Event command not implemented\n");
         break;
 
+	case CMD_INTERRUPT:
+
+		AcpiDbGenerateInterrupt (AcpiGbl_DbArgs[1]);
+		break;
+
     case CMD_GPE:
 
         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
diff --git a/source/include/acdebug.h b/source/include/acdebug.h
index c1596ee89..054de129e 100644
--- a/source/include/acdebug.h
+++ b/source/include/acdebug.h
@@ -619,4 +619,8 @@ AcpiDbUint32ToHexString (
     UINT32                  Value,
     char                    *Buffer);
 
+void
+AcpiDbGenerateInterrupt (
+    char                    *GsivArg);
+
 #endif  /* __ACDEBUG_H__ */