[PATCH 1/2] acpi: Add ACPI BGRT test (LP: #1467863)

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

This checks for errors in the ACPI BGRT

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/Makefile.am      |   1 +
 src/acpi/bgrt/bgrt.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 src/acpi/bgrt/bgrt.c

diff --git a/src/Makefile.am b/src/Makefile.am
index d92d8f6..808bb1f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -31,6 +31,7 @@ fwts_SOURCES = main.c 				\
 	acpi/apicinstance/apicinstance.c 	\
 	acpi/battery/battery.c 			\
 	acpi/bert/bert.c			\
+	acpi/bgrt/bgrt.c			\
 	acpi/boot/boot.c			\
 	acpi/brightness/brightness-helper.c	\
 	acpi/brightness/brightness.c 		\
diff --git a/src/acpi/bgrt/bgrt.c b/src/acpi/bgrt/bgrt.c
new file mode 100644
index 0000000..7890e6e
--- /dev/null
+++ b/src/acpi/bgrt/bgrt.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2015 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"
+
+#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 bgrt_init(fwts_framework *fw)
+{
+	if (fwts_acpi_find_table(fw, "BGRT", 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 BGRT table does not exist, skipping test");
+		return FWTS_SKIP;
+	}
+	return FWTS_OK;
+}
+
+/*
+ *  BGRT Boot Graphics Resource Table
+ */
+static int bgrt_test1(fwts_framework *fw)
+{
+	fwts_acpi_table_bgrt *bgrt = (fwts_acpi_table_bgrt*)table->data;
+	bool passed = true;
+
+	fwts_log_info_verbatum(fw, "BGRT Boot Graphics Resource Table:");
+	fwts_log_info_verbatum(fw, "  Version:                  0x%4.4" PRIx16, bgrt->version);
+	fwts_log_info_verbatum(fw, "  Status:                   0x%2.2" PRIx8, bgrt->status);
+	fwts_log_info_verbatum(fw, "  Image Type:               0x%2.2" PRIx8, bgrt->image_type);
+	fwts_log_info_verbatum(fw, "  Image Memory Address:     0x%16.16" PRIx64, bgrt->image_addr);
+	fwts_log_info_verbatum(fw, "  Image Offset X:           0x%8.8" PRIx32, bgrt->image_offset_x);
+	fwts_log_info_verbatum(fw, "  Image Offset Y:           0x%8.8" PRIx32, bgrt->image_offset_y);
+
+	if (bgrt->version != 1) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_MEDIUM,
+			"BGRTInvalidVersion",
+			"BGRT: Version field is 0x%" PRIx8
+			" and not the expected value of 0x01",
+			bgrt->version);
+	}
+	if (bgrt->status & ~0x1) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_MEDIUM,
+			"BGRTStatusRersevedBits",
+			"BGRT: Status field is 0x%" PRIx8
+			", reserved bits [1:7] should be zero",
+			bgrt->status);
+	}
+	if (bgrt->image_type > 0x00) {
+		passed = false;
+		fwts_failed(fw, LOG_LEVEL_MEDIUM,
+			"BGRTInvalidImageType",
+			"BGRT: Image Type field is 0x%" PRIx8
+			", the only allowed type is 0x00",
+			bgrt->image_type);
+	}
+
+	if (passed)
+		fwts_passed(fw, "No issues found in BGRT table.");
+
+	return FWTS_OK;
+}
+
+static fwts_framework_minor_test bgrt_tests[] = {
+	{ bgrt_test1, "BGRT Boot Graphics Resource Table test." },
+	{ NULL, NULL }
+};
+
+static fwts_framework_ops bgrt_ops = {
+	.description = "BGRT Boot Graphics Resource Table test.",
+	.init        = bgrt_init,
+	.minor_tests = bgrt_tests
+};
+
+FWTS_REGISTER("bgrt", &bgrt_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_BATCH | FWTS_FLAG_TEST_ACPI)
-- 
2.1.4