drivers/gpu/drm/tests/drm_cmdline_parser_test.c


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// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2019 Bootlin
 * Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net>
 */

#include <kunit/test.h>

#include <drm/drm_connector.h>
#include <drm/drm_modes.h>

static const struct drm_connector no_connector = {};

static void drm_test_cmdline_force_e_only(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "e";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &no_connector, &mode));
	KUNIT_EXPECT_FALSE(test, mode.specified);
	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
}

static void drm_test_cmdline_force_D_only_not_digital(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "D";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &no_connector, &mode));
	KUNIT_EXPECT_FALSE(test, mode.specified);
	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
}

static const struct drm_connector connector_hdmi = {
	.connector_type	= DRM_MODE_CONNECTOR_HDMIB,
};

static void drm_test_cmdline_force_D_only_hdmi(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "D";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &connector_hdmi, &mode));
	KUNIT_EXPECT_FALSE(test, mode.specified);
	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
}

static const struct drm_connector connector_dvi = {
	.connector_type	= DRM_MODE_CONNECTOR_DVII,
};

static void drm_test_cmdline_force_D_only_dvi(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "D";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &connector_dvi, &mode));
	KUNIT_EXPECT_FALSE(test, mode.specified);
	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
}

static void drm_test_cmdline_force_d_only(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "d";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &no_connector, &mode));
	KUNIT_EXPECT_FALSE(test, mode.specified);
	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
}

static void drm_test_cmdline_res(struct kunit *test)
{
	struct drm_cmdline_mode mode = { };
	const char *cmdline = "720x480";

	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
									  &no_connector, &mode));
	KUNIT_EXPECT_TRUE(test, mode.specified);
	KUNIT_EXPECT_EQ(test, mode.xres, 720);
	KUNIT_EXPECT_EQ(test, mode.yres, 480);

	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);

	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);

	KUNIT_EXPECT_FALSE(test, mode.rb);
	KUNIT_EXPECT_FALSE(test, mode.cvt);
	KUNIT_EXPECT_FALSE(test, mode.interlace);
	KUNIT_EXPECT_FALSE(test, mode.margins);
	KUNIT_EXPECT_EQ(test, mode