From 39fa1449628f3f70245ba1c731cb6384bae84f95 Mon Sep 17 00:00:00 2001
From: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Date: Sun, 24 Oct 2010 13:49:04 +0000
Subject: [PATCH] Added kernel setting to dump MADT to syslog. It's very useful
 for understanding interrupt configuration. It needs a bit polish in code but
 wanted to commit before leaving BG.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39124 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/add-ons/kernel/bus_managers/acpi/Jamfile  |  8 +++++
 .../kernel/bus_managers/acpi/acpi_busman.c    | 33 +++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/add-ons/kernel/bus_managers/acpi/Jamfile b/src/add-ons/kernel/bus_managers/acpi/Jamfile
index 7748301e68..e11efc96eb 100644
--- a/src/add-ons/kernel/bus_managers/acpi/Jamfile
+++ b/src/add-ons/kernel/bus_managers/acpi/Jamfile
@@ -31,6 +31,12 @@ local hardware_src =
 	hwxface.c
 ;
 
+local common_src =
+	dmtable.c
+	dmtbdump.c
+	dmtbinfo.c
+;
+
 local debugger_src =
 	dbdisply.c
 	dbxface.c
@@ -171,6 +177,7 @@ StaticLibrary libacpi_ca.a :
 	$(resources_src)
 	$(tables_src)
 	$(utilities_src)
+	$(common_src)
 	 ;
 
 SEARCH on [ FGristFiles $(events_src)  ] = [ FDirName $(HAIKU_TOP) src add-ons kernel bus_managers acpi events ] ;
@@ -182,6 +189,7 @@ SEARCH on [ FGristFiles $(utilities_src)  ] = [ FDirName $(HAIKU_TOP) src add-on
 SEARCH on [ FGristFiles $(dispatcher_src)  ] = [ FDirName $(HAIKU_TOP) src add-ons kernel bus_managers acpi dispatcher ] ;
 SEARCH on [ FGristFiles $(executer_src)  ] = [ FDirName $(HAIKU_TOP) src add-ons kernel bus_managers acpi executer ] ;
 SEARCH on [ FGristFiles $(parser_src)  ] = [ FDirName $(HAIKU_TOP) src add-ons kernel bus_managers acpi parser ] ;
+SEARCH on [ FGristFiles $(common_src)  ] = [ FDirName $(HAIKU_TOP) src add-ons kernel bus_managers acpi common ] ;
 
 KernelAddon acpi :
 	oshaiku.cpp
diff --git a/src/add-ons/kernel/bus_managers/acpi/acpi_busman.c b/src/add-ons/kernel/bus_managers/acpi/acpi_busman.c
index 4a32b0746e..113d122bea 100644
--- a/src/add-ons/kernel/bus_managers/acpi/acpi_busman.c
+++ b/src/add-ons/kernel/bus_managers/acpi/acpi_busman.c
@@ -22,6 +22,7 @@
 
 #include "acpi.h"
 #include "accommon.h"
+#include "acdisasm.h"
 #include "acnamesp.h"
 #include "acpi_priv.h"
 
@@ -73,6 +74,33 @@ get_device_by_hid_callback(ACPI_HANDLE object, UINT32 depth, void* context,
 }
 
 
+static void dump_madt() {
+	ACPI_STATUS status;
+	ACPI_TABLE_HEADER *madt = NULL;
+	ACPI_SUBTABLE_HEADER *entry;
+	void *end;
+	int madtCount = -1;
+
+	while (true) {
+		status = AcpiGetTable (ACPI_SIG_MADT, ++madtCount, &madt);
+		if (status != AE_OK) break;
+		
+		dprintf("acpi: MADT TABLE:\n");
+		AcpiDmDumpDataTable( madt );
+/*		entry = madt + 44;
+		end = madt + madt->Header.Length;
+		while (entry < end) {
+			dprintf("\t\tType: %d\n", entry->Type);
+			entry += entry->Length;
+		};
+*/
+	};
+
+	dprintf("acpi: You have %d MADT tables.\n", madtCount);
+
+}
+
+
 //	#pragma mark - ACPI bus manager API
 
 
@@ -89,6 +117,7 @@ acpi_std_ops(int32 op,...)
 			void *settings;
 			bool acpiDisabled = false;
 			bool acpiAvoidFullInit = false;
+			bool acpiDumpMADT = false;
 
 			settings = load_driver_settings("kernel");
 			if (settings != NULL) {
@@ -96,6 +125,8 @@ acpi_std_ops(int32 op,...)
 					false, false);
 				acpiAvoidFullInit = get_driver_boolean_parameter(settings,
 					"acpi_avoid_full_init", false, false);
+				acpiDumpMADT = get_driver_boolean_parameter(settings,
+					"acpi_dump_MADT", false, false);
 				unload_driver_settings(settings);
 			}
 
@@ -149,6 +180,8 @@ acpi_std_ops(int32 op,...)
 				goto err;
 			}
 
+			if (acpiDumpMADT) dump_madt();
+
 			/* Install the default address space handlers. */
 			status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT,
 				ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL);