[PATCH 2/3] acpi: wpbt: add ACPI WPBT test

[Alex Hung]

Signed-off-by: Alex Hung <alex.hung at canonical.com>
---
 src/Makefile.am      |   1 +
 src/acpi/wpbt/wpbt.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 src/acpi/wpbt/wpbt.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 15cc1a6..79071e9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -101,6 +101,7 @@ fwts_SOURCES = main.c 				\
 	acpi/wakealarm/wakealarm.c 		\
 	acpi/wdat/wdat.c			\
 	acpi/wmi/wmi.c 				\
+	acpi/wpbt/wpbt.c			\
 	acpi/xsdt/xsdt.c			\
 	acpi/xenv/xenv.c			\
 	apic/apicedge/apicedge.c 		\
diff --git a/src/acpi/wpbt/wpbt.c b/src/acpi/wpbt/wpbt.c
new file mode 100644
index 0000000..c988d78
--- /dev/null
+++ b/src/acpi/wpbt/wpbt.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2016 Canonical
+ *
+ * Portions of this code original from the Linux-ready Firmware Developer Kit
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#include "fwts.h"
+
+#if defined(FWTS_HAS_ACPI)
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+#include <ctype.h>
+
+static fwts_acpi_table_info *table;
+
+static int wpbt_init(fwts_framework *fw)
+{
+	if (fwts_acpi_find_table(fw, "WPBT", 0, &table) != FWTS_OK) {
+		fwts_log_error(fw, "Cannot read ACPI tables.");
+		return FWTS_ERROR;
+	}
+	if (table == NULL || (table && table->length == 0)) {
+		fwts_log_error(fw, "ACPI WPBT table does not exist, skipping test");
+		return FWTS_SKIP;
+	}
+	return FWTS_OK;
+}
+
+/*
+ *  WPBT Windows Platform Binary Table
+ */
+static int wpbt_test1(fwts_framework *fw)
+{
+	fwts_acpi_table_wpbt *wpbt = (fwts_acpi_table_wpbt*) table->data;
+	bool passed = true;
+
+	fwts_log_info_verbatim(fw, "WPBT Windows Platform Binary Table:");
+	fwts_log_info_verbatim(fw, "  Handoff Memory Size:      0x%8.8" PRIx32, wpbt->handoff_size);
+	fwts_log_info_verbatim(fw, "  Handoff Memory Location:  0x%16.16" PRIx64, wpbt->handoff_address);
+	fwts_log_info_verbatim(fw, "  Content Layout:           0x%2.2" PRIx8, wpbt->layout);
+	fwts_log_info_verbatim(fw, "  Content Type:             0x%2.2" PRIx8, wpbt->type);
+
+	if (wpbt->layout != 1) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_HIGH,
+			"WPBTBadLayout",
+			"WPBT supports Conent Layout 1 only, got "
+			"0x%2.2" PRIx8 " instead", wpbt->layout);
+	}
+
+	if (wpbt->type != 1) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_HIGH,
+			"WPBTBadType",
+			"WPBT supports Content Type 1 only, got "
+			"0x%2.2" PRIx8 " instead", wpbt->type);
+
+	} else {
+		fwts_acpi_table_wpbt_type1 *type = (fwts_acpi_table_wpbt_type1 *) (table->data + sizeof(fwts_acpi_table_wpbt));
+		fwts_log_info_verbatim(fw, "  Arguments Length:         0x%4.4" PRIx16, type->arguments_length);
+
+		if (type->arguments_length % 2) {
+			passed = false;
+			fwts_failed(fw, LOG_LEVEL_HIGH,
+				"WPBTBadArgumentLength",
+				"WPBT arugments length must be multiple of 2, got "
+				"0x%4.4" PRIx16 " instead", type->arguments_length);
+		}
+	}
+
+	fwts_log_nl(fw);
+
+	if (passed)
+		fwts_passed(fw, "No issues found in WPBT table.");
+
+	return FWTS_OK;
+}
+
+static fwts_framework_minor_test wpbt_tests[] = {
+	{ wpbt_test1, "WPBT Windows Platform Binary Table test." },
+	{ NULL, NULL }
+};
+
+static fwts_framework_ops wpbt_ops = {
+	.description = "WPBT Windows Platform Binary Table test.",
+	.init        = wpbt_init,
+	.minor_tests = wpbt_tests
+};
+
+FWTS_REGISTER("wpbt", &wpbt_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_BATCH | FWTS_FLAG_TEST_ACPI)
+
+#endif
-- 
2.7.4