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@@ -0,0 +1,53 @@
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+/*
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+ * efi_selftest_textoutput
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+ *
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+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
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+ *
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+ * SPDX-License-Identifier: GPL-2.0+
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+ *
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+ * Test the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.
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+ *
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+ * The following services are tested:
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+ * OutputString, TestString, SetAttribute.
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+ */
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+
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+#include <efi_selftest.h>
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+
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+/*
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+ * Execute unit test.
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+ *
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+ * @return: EFI_ST_SUCCESS for success
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+ */
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+static int execute(void)
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+{
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+ size_t foreground;
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+ size_t background;
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+ size_t attrib;
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+ efi_status_t ret;
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+
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+ /* SetAttribute */
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+ efi_st_printf("\nColor palette\n");
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+ for (foreground = 0; foreground < 0x10; ++foreground) {
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+ for (background = 0; background < 0x80; background += 0x10) {
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+ attrib = foreground | background;
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+ con_out->set_attribute(con_out, attrib);
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+ efi_st_printf("%p", (void *)attrib);
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+ }
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+ con_out->set_attribute(con_out, 0);
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+ efi_st_printf("\n");
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+ }
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+ /* TestString */
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+ ret = con_out->test_string(con_out,
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+ L" !\"#$%&'()*+,-./0-9:;<=>?@A-Z[\\]^_`a-z{|}~\n");
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+ if (ret != EFI_ST_SUCCESS) {
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+ efi_st_error("TestString failed for ANSI characters\n");
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+ return EFI_ST_FAILURE;
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+ }
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+ return EFI_ST_SUCCESS;
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+}
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+
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+EFI_UNIT_TEST(textoutput) = {
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+ .name = "text output",
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+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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+ .execute = execute,
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+};
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