1 files changed, 123 insertions, 0 deletions
diff --git a/lib/efi_selftest/efi_selftest_util.c b/lib/efi_selftest/efi_selftest_util.c
new file mode 100644
index 00000000000..3681fa6431f
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_util.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * efi_selftest_util
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * Utility functions
+ */
+
+#include <efi_selftest.h>
+
+struct efi_st_translate {
+	u16 code;
+	u16 *text;
+};
+
+static struct efi_st_translate efi_st_control_characters[] = {
+	{0, u"Null"},
+	{8, u"BS"},
+	{9, u"TAB"},
+	{10, u"LF"},
+	{13, u"CR"},
+	{0, NULL},
+};
+
+static u16 efi_st_ch[] = u"' '";
+static u16 efi_st_unknown[] = u"unknown";
+
+static struct efi_st_translate efi_st_scan_codes[] = {
+	{0x00, u"Null"},
+	{0x01, u"Up"},
+	{0x02, u"Down"},
+	{0x03, u"Right"},
+	{0x04, u"Left"},
+	{0x05, u"Home"},
+	{0x06, u"End"},
+	{0x07, u"Insert"},
+	{0x08, u"Delete"},
+	{0x09, u"Page Up"},
+	{0x0a, u"Page Down"},
+	{0x0b, u"FN 1"},
+	{0x0c, u"FN 2"},
+	{0x0d, u"FN 3"},
+	{0x0e, u"FN 4"},
+	{0x0f, u"FN 5"},
+	{0x10, u"FN 6"},
+	{0x11, u"FN 7"},
+	{0x12, u"FN 8"},
+	{0x13, u"FN 9"},
+	{0x14, u"FN 10"},
+	{0x15, u"FN 11"},
+	{0x16, u"FN 12"},
+	{0x17, u"Escape"},
+	{0x68, u"FN 13"},
+	{0x69, u"FN 14"},
+	{0x6a, u"FN 15"},
+	{0x6b, u"FN 16"},
+	{0x6c, u"FN 17"},
+	{0x6d, u"FN 18"},
+	{0x6e, u"FN 19"},
+	{0x6f, u"FN 20"},
+	{0x70, u"FN 21"},
+	{0x71, u"FN 22"},
+	{0x72, u"FN 23"},
+	{0x73, u"FN 24"},
+	{0x7f, u"Mute"},
+	{0x80, u"Volume Up"},
+	{0x81, u"Volume Down"},
+	{0x100, u"Brightness Up"},
+	{0x101, u"Brightness Down"},
+	{0x102, u"Suspend"},
+	{0x103, u"Hibernate"},
+	{0x104, u"Toggle Display"},
+	{0x105, u"Recovery"},
+	{0x106, u"Reject"},
+	{0x0, NULL},
+};
+
+u16 *efi_st_translate_char(u16 code)
+{
+	struct efi_st_translate *tr;
+
+	if (code >= ' ') {
+		efi_st_ch[1] = code;
+		return efi_st_ch;
+	}
+	for (tr = efi_st_control_characters; tr->text; ++tr) {
+		if (tr->code == code)
+			return tr->text;
+	}
+	return efi_st_unknown;
+}
+
+u16 *efi_st_translate_code(u16 code)
+{
+	struct efi_st_translate *tr;
+
+	for (tr = efi_st_scan_codes; tr->text; ++tr) {
+		if (tr->code == code)
+			return tr->text;
+	}
+	return efi_st_unknown;
+}
+
+int efi_st_strcmp_16_8(const u16 *buf1, const unsigned char *buf2)
+{
+	for (; *buf1 || *buf2; ++buf1, ++buf2) {
+		if (*buf1 != *buf2)
+			return *buf1 - *buf2;
+	}
+	return 0;
+}
+
+void *efi_st_get_config_table(const efi_guid_t *guid)
+{
+	size_t i;
+
+	for (i = 0; i < st_systable->nr_tables; i++) {
+		if (!guidcmp(guid, &st_systable->tables[i].guid))
+			return st_systable->tables[i].table;
+	}
+	return NULL;
+}