From 4fa04f4cccc4d81fd6272ca94b879b4d7630ed53 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Mon, 27 May 2024 15:58:12 +0200 Subject: [PATCH] drm/tests: Add infoframes test The previous patch added the generation of the infoframes matching an HDMI connector state. Let's add a few tests to make sure it works as expected. Reviewed-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20240527-kms-hdmi-connector-state-v15-23-c5af16c3aae2@kernel.org Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/drm_connector_test.c | 219 +++++++++++++++++++++ 1 file changed, 219 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c index 2e631617c391..eda2e5d08cd9 100644 --- a/drivers/gpu/drm/tests/drm_connector_test.c +++ b/drivers/gpu/drm/tests/drm_connector_test.c @@ -221,6 +221,217 @@ static void drm_test_connector_hdmi_init_null_ddc(struct kunit *test) KUNIT_EXPECT_EQ(test, ret, 0); } +/* + * Test that the registration of an HDMI connector with a NULL vendor + * fails. + */ +static void drm_test_connector_hdmi_init_null_vendor(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + NULL, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of an HDMI connector with a NULL product + * fails. + */ +static void drm_test_connector_hdmi_init_null_product(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + int ret; + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", NULL, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a valid, shorter than + * the max length, product name succeeds, and is stored padded with 0. + */ +static void drm_test_connector_hdmi_init_product_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', + }; + const char *product_name = "Prod"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a valid, at max + * length, product name succeeds, and is stored padded without any + * trailing \0. + */ +static void drm_test_connector_hdmi_init_product_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const unsigned char expected_product[DRM_CONNECTOR_HDMI_PRODUCT_LEN] = { + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', 'o', 'd', 'u', 'c', 't', + 'P', 'r', + }; + const char *product_name = "ProductProductPr"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.product, + expected_product, + sizeof(priv->connector.hdmi.product)); +} + +/* + * Test that the registration of a connector with a product name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_product_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *product_name = "ProductProductProduct"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(product_name), DRM_CONNECTOR_HDMI_PRODUCT_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + "Vendor", product_name, + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + +/* + * Test that the registration of a connector with a vendor name smaller + * than the maximum length succeeds, and is stored padded with zeros. + */ +static void drm_test_connector_hdmi_init_vendor_valid(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', + }; + const char *vendor_name = "Vend"; + int ret; + + KUNIT_ASSERT_LT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name at the + * maximum length succeeds, and is stored padded without the trailing + * zero. + */ +static void drm_test_connector_hdmi_init_vendor_length_exact(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char expected_vendor[DRM_CONNECTOR_HDMI_VENDOR_LEN] = { + 'V', 'e', 'n', 'd', 'o', 'r', + 'V', 'e', + }; + const char *vendor_name = "VendorVe"; + int ret; + + KUNIT_ASSERT_EQ(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_MEMEQ(test, + priv->connector.hdmi.vendor, + expected_vendor, + sizeof(priv->connector.hdmi.vendor)); +} + +/* + * Test that the registration of a connector with a vendor name larger + * than the maximum length fails. + */ +static void drm_test_connector_hdmi_init_vendor_length_too_long(struct kunit *test) +{ + struct drm_connector_init_priv *priv = test->priv; + const char *vendor_name = "VendorVendor"; + int ret; + + KUNIT_ASSERT_GT(test, strlen(vendor_name), DRM_CONNECTOR_HDMI_VENDOR_LEN); + + ret = drmm_connector_hdmi_init(&priv->drm, &priv->connector, + vendor_name, "Product", + &dummy_funcs, + &dummy_hdmi_funcs, + DRM_MODE_CONNECTOR_HDMIA, + &priv->ddc, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_EXPECT_LT(test, ret, 0); +} + /* * Test that the registration of a connector with an invalid maximum bpc * count fails. @@ -516,6 +727,14 @@ static struct kunit_case drmm_connector_hdmi_init_tests[] = { KUNIT_CASE(drm_test_connector_hdmi_init_formats_empty), KUNIT_CASE(drm_test_connector_hdmi_init_formats_no_rgb), KUNIT_CASE(drm_test_connector_hdmi_init_null_ddc), + KUNIT_CASE(drm_test_connector_hdmi_init_null_product), + KUNIT_CASE(drm_test_connector_hdmi_init_null_vendor), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_product_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_product_valid), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_exact), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_length_too_long), + KUNIT_CASE(drm_test_connector_hdmi_init_vendor_valid), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_valid, drm_connector_hdmi_init_type_valid_gen_params), KUNIT_CASE_PARAM(drm_test_connector_hdmi_init_type_invalid, -- 2.25.1