drivers/gpu/drm/selftests/test-drm_cmdline_parser.c


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// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2019 Bootlin
 */

#define pr_fmt(fmt) "drm_cmdline: " fmt

#include <linux/kernel.h>
#include <linux/module.h>

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

#define TESTS "drm_cmdline_selftests.h"
#include "drm_selftest.h"
#include "test-drm_modeset_common.h"

static const struct drm_connector no_connector = {};

static int drm_cmdline_test_force_e_only(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("e",
							   &no_connector,
							   &mode));
	FAIL_ON(mode.specified);
	FAIL_ON(mode.refresh_specified);
	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_ON);

	return 0;
}

static int drm_cmdline_test_force_D_only_not_digital(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
							   &no_connector,
							   &mode));
	FAIL_ON(mode.specified);
	FAIL_ON(mode.refresh_specified);
	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_ON);

	return 0;
}

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

static int drm_cmdline_test_force_D_only_hdmi(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
							   &connector_hdmi,
							   &mode));
	FAIL_ON(mode.specified);
	FAIL_ON(mode.refresh_specified);
	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_ON_DIGITAL);

	return 0;
}

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

static int drm_cmdline_test_force_D_only_dvi(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
							   &connector_dvi,
							   &mode));
	FAIL_ON(mode.specified);
	FAIL_ON(mode.refresh_specified);
	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_ON_DIGITAL);

	return 0;
}

static int drm_cmdline_test_force_d_only(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("d",
							   &no_connector,
							   &mode));
	FAIL_ON(mode.specified);
	FAIL_ON(mode.refresh_specified);
	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_OFF);

	return 0;
}

static int drm_cmdline_test_margin_only(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(drm_mode_parse_command_line_for_connector("m",
							  &no_connector,
							  &mode));

	return 0;
}

static int drm_cmdline_test_interlace_only(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(drm_mode_parse_command_line_for_connector("i",
							  &no_connector,
							  &mode));

	return 0;
}

static int drm_cmdline_test_res(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480",
							   &no_connector,
							   &mode));
	FAIL_ON(!mode.specified);
	FAIL_ON(mode.xres != 720);
	FAIL_ON(mode.yres != 480);

	FAIL_ON(mode.refresh_specified);

	FAIL_ON(mode.bpp_specified);

	FAIL_ON(mode.rb);
	FAIL_ON(mode.cvt);
	FAIL_ON(mode.interlace);
	FAIL_ON(mode.margins);
	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);

	return 0;
}

static int drm_cmdline_test_res_missing_x(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(drm_mode_parse_command_line_for_connector("x480",
							  &no_connector,
							  &mode));

	return 0;
}

static int drm_cmdline_test_res_missing_y(void *ignored)
{
	struct drm_cmdline_mode mode = { };

	FAIL_ON(drm_mode_parse_command_line_for_connector("1024x&qu