From patchwork Tue Nov 28 10:24:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13470912 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D30BC07CA9 for ; Tue, 28 Nov 2023 10:26:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0AmaAreOQD1JlocVqGLKXpvNIsFNwehYnpr1zmIBS5A=; b=rD8/74ohuKL5Yp Pv2leNtqIFg+3x3K645zD9CHl6ietNRgy1ggeu0P7fWa1Et3i3GBabMazAwUyzDkpBaeDxr0t6ASb dscTJ9SXYX1lSMiExKf2ZMOs8z6UcZQU/s9u7PNCCWV2GNpxicofp8mtXKffZi7tAecYMfPBT0dhb QQNOyt5KihyWmm/fNPf9D73+UZAXwkKex2WbwmyvoOVj/vV6utihHulmDDZ8YYCsGmb2WOppg/B8q /tWQk8P0sWtGECeAIuGRq8ZE1W0jutnZbVgwP9W5nfSyXvmyDZ7tjOq8hAuFOmIacL2YIFy8AdMlS KMobjYtj9TfidV484loQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r7vHb-004sHX-0D; Tue, 28 Nov 2023 10:25:35 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r7vHA-004rrQ-37; Tue, 28 Nov 2023 10:25:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 42D3A6163E; Tue, 28 Nov 2023 10:25:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E4A4C433CA; Tue, 28 Nov 2023 10:25:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701167107; bh=bpMC+/UnoH9kBXJCL5DXZvBPCJUls/8gJYl4RO+7lh0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=DcQ4m/JDOvNn4GvCJaSg3bLJGVqCRD53PSiuedwk1dyT4+CpsfTIaojKKAJNAD3XT PVCYwmISKLkQBaRy3RX8kJrg20Hhldnfq6aFDHKBtDihZaoMVjJrd8WfRQ59B/E3H2 DmDK4wjgOgpO5OD6T11/PJi/ysB2S3UdKY8TejbF4y4HYrJZjTF41MSZflBZABESVF W3C45QFct3rwo/A1q1Uiiqx3KtPlVAIPqvJWhGGPgDfIfORcOsLC2wvlc3rHJmsm9T RyKWXXMihTlha1ftRkiWQx+BsZL+gIvoibo5bciqL5biR5E2/mNslSuS1emD4zIB/Z arkXXAhThdaqg== From: Maxime Ripard Date: Tue, 28 Nov 2023 11:24:27 +0100 Subject: [PATCH v4 16/45] drm/connector: hdmi: Compute bpc and format automatically MIME-Version: 1.0 Message-Id: <20231128-kms-hdmi-connector-state-v4-16-c7602158306e@kernel.org> References: <20231128-kms-hdmi-connector-state-v4-0-c7602158306e@kernel.org> In-Reply-To: <20231128-kms-hdmi-connector-state-v4-0-c7602158306e@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Hans Verkuil , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=36095; i=mripard@kernel.org; h=from:subject:message-id; bh=bpMC+/UnoH9kBXJCL5DXZvBPCJUls/8gJYl4RO+7lh0=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKmp+y9ue86wl2P2/P8fn1tkuSYsmr57hq3Gyiz3Sa/Pa v5tDmHb1VHKwiDGxSArpsgSI2y+JO7UrNedbHzzYOawMoEMYeDiFICJGHxg+F/54YrLXO+Ts0z3 R7IvVn/lv/Qzu81Vk+LDDDWvLf4lPjBi+F8Uu/bg6zX9vTXyV9LlXqh82+k4d9vj+QGcayfOWJH GfI4bAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231128_022509_132014_5F16E164 X-CRM114-Status: GOOD ( 19.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that we have all the infrastructure needed, we can add some code that will, for a given connector state and mode, compute the best output format and bpc. The algorithm is the same one than the one already found in i915 and vc4. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic_state_helper.c | 183 ++++++- .../gpu/drm/tests/drm_atomic_state_helper_test.c | 529 ++++++++++++++++++++- drivers/gpu/drm/tests/drm_kunit_edid.h | 160 +++++++ 3 files changed, 860 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index af3ece136040..4b21422b0e3f 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -668,6 +668,96 @@ static bool hdmi_is_full_range(const struct drm_connector *connector, return drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_FULL ? true : false; } +static bool +sink_supports_format_bpc(const struct drm_connector *connector, + const struct drm_display_info *info, + const struct drm_display_mode *mode, + unsigned int format, unsigned int bpc) +{ + struct drm_device *dev = connector->dev; + u8 vic = drm_match_cea_mode(mode); + + if (vic == 1 && bpc != 8) { + drm_dbg(dev, "VIC1 requires a bpc of 8, got %u\n", bpc); + return false; + } + + if (!info->is_hdmi && + (format != HDMI_COLORSPACE_RGB || bpc != 8)) { + drm_dbg(dev, "DVI Monitors require an RGB output at 8 bpc\n"); + return false; + } + + if (!(connector->hdmi.supported_formats & BIT(format))) { + drm_dbg(dev, "%s format unsupported by the connector.\n", + drm_hdmi_connector_get_output_format_name(format)); + return false; + } + + switch (format) { + case HDMI_COLORSPACE_RGB: + drm_dbg(dev, "RGB Format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_RGB444)) + return false; + + if (bpc == 10 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30)) { + drm_dbg(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); + return false; + } + + if (bpc == 12 && !(info->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_36)) { + drm_dbg(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); + return false; + } + + drm_dbg(dev, "RGB format supported in that configuration.\n"); + + return true; + + case HDMI_COLORSPACE_YUV422: + drm_dbg(dev, "YUV422 format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR422)) { + drm_dbg(dev, "Sink doesn't support YUV422.\n"); + return false; + } + + if (bpc != 12) { + drm_dbg(dev, "YUV422 only supports 12 bpc.\n"); + return false; + } + + drm_dbg(dev, "YUV422 format supported in that configuration.\n"); + + return true; + + case HDMI_COLORSPACE_YUV444: + drm_dbg(dev, "YUV444 format, checking the constraints.\n"); + + if (!(info->color_formats & DRM_COLOR_FORMAT_YCBCR444)) { + drm_dbg(dev, "Sink doesn't support YUV444.\n"); + return false; + } + + if (bpc == 10 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_30)) { + drm_dbg(dev, "10 BPC but sink doesn't support Deep Color 30.\n"); + return false; + } + + if (bpc == 12 && !(info->edid_hdmi_ycbcr444_dc_modes & DRM_EDID_HDMI_DC_36)) { + drm_dbg(dev, "12 BPC but sink doesn't support Deep Color 36.\n"); + return false; + } + + drm_dbg(dev, "YUV444 format supported in that configuration.\n"); + + return true; + } + + return false; +} + static enum drm_mode_status hdmi_clock_valid(const struct drm_connector *connector, const struct drm_display_mode *mode, @@ -712,6 +802,95 @@ hdmi_compute_clock(const struct drm_connector *connector, return 0; } +static bool +hdmi_try_format_bpc(const struct drm_connector *connector, + struct drm_connector_state *state, + const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt) +{ + const struct drm_display_info *info = &connector->display_info; + struct drm_device *dev = connector->dev; + int ret; + + drm_dbg(dev, "Trying %s output format\n", + drm_hdmi_connector_get_output_format_name(fmt)); + + if (!sink_supports_format_bpc(connector, info, mode, fmt, bpc)) { + drm_dbg(dev, "%s output format not supported with %u bpc\n", + drm_hdmi_connector_get_output_format_name(fmt), bpc); + return false; + } + + ret = hdmi_compute_clock(connector, state, mode, bpc, fmt); + if (ret) { + drm_dbg(dev, "Couldn't compute clock for %s output format and %u bpc\n", + drm_hdmi_connector_get_output_format_name(fmt), bpc); + return false; + } + + drm_dbg(dev, "%s output format supported with %u (TMDS char rate: %llu Hz)\n", + drm_hdmi_connector_get_output_format_name(fmt), bpc, state->hdmi.tmds_char_rate); + + return true; +} + +static int +hdmi_compute_format(const struct drm_connector *connector, + struct drm_connector_state *state, + const struct drm_display_mode *mode, + unsigned int bpc) +{ + struct drm_device *dev = connector->dev; + + if (hdmi_try_format_bpc(connector, state, mode, bpc, HDMI_COLORSPACE_RGB)) { + state->hdmi.output_format = HDMI_COLORSPACE_RGB; + return 0; + } + + if (hdmi_try_format_bpc(connector, state, mode, bpc, HDMI_COLORSPACE_YUV422)) { + state->hdmi.output_format = HDMI_COLORSPACE_YUV422; + return 0; + } + + drm_dbg(dev, "Failed. No Format Supported for that bpc count.\n"); + + return -EINVAL; +} + +static int +hdmi_compute_config(const struct drm_connector *connector, + struct drm_connector_state *state, + const struct drm_display_mode *mode) +{ + struct drm_device *dev = connector->dev; + unsigned int max_bpc = clamp_t(unsigned int, + state->max_bpc, + 8, connector->max_bpc); + unsigned int bpc; + int ret; + + for (bpc = max_bpc; bpc >= 8; bpc -= 2) { + drm_dbg(dev, "Trying with a %d bpc output\n", bpc); + + ret = hdmi_compute_format(connector, state, mode, bpc); + if (ret) + continue; + + state->hdmi.output_bpc = bpc; + + drm_dbg(dev, + "Mode %ux%u @ %uHz: Found configuration: bpc: %u, fmt: %s, clock: %llu\n", + mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode), + state->hdmi.output_bpc, + drm_hdmi_connector_get_output_format_name(state->hdmi.output_format), + state->hdmi.tmds_char_rate); + + return 0; + } + + return -EINVAL; +} + /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state * @connector: DRM Connector @@ -737,9 +916,7 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, new_state->hdmi.is_full_range = hdmi_is_full_range(connector, new_state); - ret = hdmi_compute_clock(connector, new_state, mode, - new_state->hdmi.output_bpc, - new_state->hdmi.output_format); + ret = hdmi_compute_config(connector, new_state, mode); if (ret) return ret; diff --git a/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c index e7dbdd4a4e7f..860e34b00fee 100644 --- a/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c +++ b/drivers/gpu/drm/tests/drm_atomic_state_helper_test.c @@ -70,9 +70,6 @@ static int light_up_connector(struct kunit *test, conn_state = drm_atomic_get_connector_state(state, connector); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state); - conn_state->hdmi.output_bpc = connector->max_bpc; - conn_state->hdmi.output_format = HDMI_COLORSPACE_RGB; - ret = drm_atomic_set_crtc_for_connector(conn_state, crtc); KUNIT_EXPECT_EQ(test, ret, 0); @@ -720,10 +717,15 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) 10); KUNIT_ASSERT_NOT_NULL(test, priv); + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); - conn = &priv->connector; preferred = find_preferred_mode(conn); KUNIT_ASSERT_NOT_NULL(test, preferred); @@ -741,11 +743,11 @@ static void drm_test_check_output_bpc_crtc_mode_changed(struct kunit *test) old_conn_state = drm_atomic_get_old_connector_state(state, conn); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, old_conn_state); - new_conn_state->hdmi.output_bpc = 8; + new_conn_state->max_requested_bpc = 8; KUNIT_ASSERT_NE(test, - old_conn_state->hdmi.output_bpc, - new_conn_state->hdmi.output_bpc); + old_conn_state->max_requested_bpc, + new_conn_state->max_requested_bpc); ret = drm_atomic_check_only(state); KUNIT_ASSERT_EQ(test, ret, 0); @@ -789,10 +791,15 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) 10); KUNIT_ASSERT_NOT_NULL(test, priv); + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); - conn = &priv->connector; preferred = find_preferred_mode(conn); KUNIT_ASSERT_NOT_NULL(test, preferred); @@ -832,6 +839,56 @@ static void drm_test_check_output_bpc_crtc_mode_not_changed(struct kunit *test) KUNIT_EXPECT_FALSE(test, crtc_state->mode_changed); } +/* + * Test that if we have an HDMI connector but a !HDMI display, we always + * output RGB with 8 bpc. + */ +static void drm_test_check_output_bpc_dvi(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_dvi_1080p, + ARRAY_SIZE(test_edid_dvi_1080p)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_FALSE(test, info->is_hdmi); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_ASSERT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + /* * Test that when doing a commit which would use RGB 8bpc, the TMDS * clock rate stored in the connector state is equal to the mode clock @@ -1024,6 +1081,452 @@ static void drm_test_check_hdmi_funcs_reject_rate(struct kunit *test) KUNIT_EXPECT_LT(test, ret, 0); } +/* + * Test that if: + * - We have an HDMI connector supporting RGB only + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in RGB/10bpc. + * + * Then we will pick the latter, and the computed TMDS character rate + * will be equal to 1.25 times the mode pixel clock. + */ +static void drm_test_check_max_tmds_rate_bpc_fallback(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 10, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 10); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1250); +} + +/* + * Test that if: + * - We have an HDMI connector supporting both RGB and YUV422 and up to + * 12 bpc + * - The chosen mode has a TMDS character rate higher than the display + * supports in RGB/12bpc + * - The chosen mode has a TMDS character rate lower than the display + * supports in YUV422/12bpc. + * + * Then we will pick the latter, and the computed TMDS character rate + * will be equal to the mode pixel clock. + */ +static void drm_test_check_max_tmds_rate_format_fallback(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + KUNIT_ASSERT_FALSE(test, preferred->flags & DRM_MODE_FLAG_DBLCLK); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_YUV422); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.tmds_char_rate, preferred->clock * 1000); +} + +/* + * Test that if a driver and screen supports RGB and YUV formats, and we + * try to set the VIC 1 mode, we end up with 8bpc RGB even if we could + * have had a higher bpc. + */ +static void drm_test_check_output_bpc_format_vic_1(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *mode; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + mode = drm_display_mode_from_cea_vic(drm, 1); + KUNIT_ASSERT_NOT_NULL(test, mode); + + /* + * NOTE: We can't use drm_connector_hdmi_compute_mode_clock() + * here because we're trying to get the rate of an invalid + * configuration. + * + * Thus, we have to calculate the rate by hand. + */ + rate = mode->clock * 1500; + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, mode, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a driver supports only RGB but the screen also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_driver_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the driver only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a screen supports only RGB but the driver also supports + * YUV formats, we only end up with an RGB format. + */ +static void drm_test_check_output_bpc_format_display_rgb_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_200mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_200mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that YUV422 would be the preferred option + * here: we're always favouring higher bpc, we can't have RGB + * because the TMDS character rate exceeds the maximum supported + * by the display, and YUV422 works for that display. + * + * But since the display only supports RGB, we should fallback to + * a lower bpc with RGB. + */ + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_GT(test, rate, info->max_tmds_clock * 1000); + + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_YUV422); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_LT(test, conn_state->hdmi.output_bpc, 12); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a display supports higher bpc but the driver only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_driver_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB), + 8); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + +/* + * Test that if a driver supports higher bpc but the display only + * supports 8 bpc, we only end up with 8 bpc even if we could have had a + * higher bpc. + */ +static void drm_test_check_output_bpc_format_display_8bpc_only(struct kunit *test) +{ + struct drm_atomic_helper_connector_hdmi_priv *priv; + struct drm_modeset_acquire_ctx *ctx; + struct drm_connector_state *conn_state; + struct drm_display_info *info; + struct drm_display_mode *preferred; + unsigned long long rate; + struct drm_connector *conn; + struct drm_device *drm; + struct drm_crtc *crtc; + int ret; + + priv = drm_atomic_helper_connector_hdmi_init(test, + BIT(HDMI_COLORSPACE_RGB) | + BIT(HDMI_COLORSPACE_YUV422) | + BIT(HDMI_COLORSPACE_YUV444), + 12); + KUNIT_ASSERT_NOT_NULL(test, priv); + + conn = &priv->connector; + ret = set_connector_edid(test, conn, + test_edid_hdmi_1080p_rgb_max_340mhz, + ARRAY_SIZE(test_edid_hdmi_1080p_rgb_max_340mhz)); + KUNIT_ASSERT_EQ(test, ret, 0); + + info = &conn->display_info; + KUNIT_ASSERT_TRUE(test, info->is_hdmi); + KUNIT_ASSERT_GT(test, info->max_tmds_clock, 0); + + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + preferred = find_preferred_mode(conn); + KUNIT_ASSERT_NOT_NULL(test, preferred); + + /* + * We're making sure that we have headroom on the TMDS character + * clock to actually use 12bpc. + */ + rate = drm_connector_hdmi_compute_mode_clock(preferred, 12, HDMI_COLORSPACE_RGB); + KUNIT_ASSERT_LT(test, rate, info->max_tmds_clock * 1000); + + drm = &priv->drm; + crtc = priv->crtc; + ret = light_up_connector(test, drm, crtc, conn, preferred, ctx); + KUNIT_EXPECT_EQ(test, ret, 0); + + conn_state = conn->state; + KUNIT_ASSERT_NOT_NULL(test, conn_state); + + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_bpc, 8); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); +} + static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode), KUNIT_CASE(drm_test_check_broadcast_rgb_auto_cea_mode_vic_1), @@ -1034,8 +1537,16 @@ static struct kunit_case drm_atomic_helper_connector_hdmi_check_tests[] = { KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_changed), KUNIT_CASE(drm_test_check_broadcast_rgb_crtc_mode_not_changed), KUNIT_CASE(drm_test_check_hdmi_funcs_reject_rate), + KUNIT_CASE(drm_test_check_max_tmds_rate_bpc_fallback), + KUNIT_CASE(drm_test_check_max_tmds_rate_format_fallback), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_changed), KUNIT_CASE(drm_test_check_output_bpc_crtc_mode_not_changed), + KUNIT_CASE(drm_test_check_output_bpc_dvi), + KUNIT_CASE(drm_test_check_output_bpc_format_vic_1), + KUNIT_CASE(drm_test_check_output_bpc_format_display_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_display_rgb_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_8bpc_only), + KUNIT_CASE(drm_test_check_output_bpc_format_driver_rgb_only), KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_8bpc), KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_10bpc), KUNIT_CASE(drm_test_check_tmds_char_rate_rgb_12bpc), @@ -1167,7 +1678,7 @@ static void drm_test_check_format_value(struct kunit *test) conn = &priv->connector; conn_state = conn->state; - KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, HDMI_COLORSPACE_RGB); + KUNIT_EXPECT_EQ(test, conn_state->hdmi.output_format, 0); } /* diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.h b/drivers/gpu/drm/tests/drm_kunit_edid.h index 24f3377ef0f0..3e3527c58c31 100644 --- a/drivers/gpu/drm/tests/drm_kunit_edid.h +++ b/drivers/gpu/drm/tests/drm_kunit_edid.h @@ -1,6 +1,64 @@ #ifndef DRM_KUNIT_EDID_H_ #define DRM_KUNIT_EDID_H_ +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 0a 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ab + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * RGB color display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: none + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Checksum: 0xab + */ +const unsigned char test_edid_dvi_1080p[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x1e, 0x46, 0x0f, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xab +}; + /* * edid-decode (hex): * @@ -103,6 +161,108 @@ const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = { 0x00, 0x00, 0x00, 0xd0 }; +/* + * edid-decode (hex): + * + * 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00 + * 00 21 01 03 81 a0 5a 78 02 00 00 00 00 00 00 00 + * 00 00 00 20 00 00 01 01 01 01 01 01 01 01 01 01 + * 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c + * 45 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 32 + * 46 1e 46 0f 00 0a 20 20 20 20 20 20 00 00 00 10 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 92 + * + * 02 03 1b 81 e3 05 00 20 41 10 e2 00 4a 6d 03 0c + * 00 12 34 00 28 20 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0 + * + * ---------------- + * + * Block 0, Base EDID: + * EDID Structure Version & Revision: 1.3 + * Vendor & Product Identification: + * Manufacturer: LNX + * Model: 42 + * Made in: 2023 + * Basic Display Parameters & Features: + * Digital display + * DFP 1.x compatible TMDS + * Maximum image size: 160 cm x 90 cm + * Gamma: 2.20 + * Monochrome or grayscale display + * First detailed timing is the preferred timing + * Color Characteristics: + * Red : 0.0000, 0.0000 + * Green: 0.0000, 0.0000 + * Blue : 0.0000, 0.0000 + * White: 0.0000, 0.0000 + * Established Timings I & II: + * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz + * Standard Timings: none + * Detailed Timing Descriptors: + * DTD 1: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm) + * Hfront 88 Hsync 44 Hback 148 Hpol P + * Vfront 4 Vsync 5 Vback 36 Vpol P + * Display Product Name: 'Test EDID' + * Display Range Limits: + * Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz + * Dummy Descriptor: + * Extension blocks: 1 + * Checksum: 0x92 + * + * ---------------- + * + * Block 1, CTA-861 Extension Block: + * Revision: 3 + * Underscans IT Video Formats by default + * Native detailed modes: 1 + * Colorimetry Data Block: + * sRGB + * Video Data Block: + * VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz + * Video Capability Data Block: + * YCbCr quantization: No Data + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned + * Vendor-Specific Data Block (HDMI), OUI 00-0C-03: + * Source physical address: 1.2.3.4 + * Maximum TMDS clock: 340 MHz + * Extended HDMI video details: + * Checksum: 0xd0 Unused space in Extension Block: 100 bytes + */ +const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = { + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x01, 0x03, 0x81, 0xa0, 0x5a, 0x78, + 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, + 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, + 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, + 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32, + 0x46, 0x00, 0x00, 0xc4, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x41, 0x02, 0x03, 0x1b, 0x81, + 0xe3, 0x05, 0x00, 0x20, 0x41, 0x10, 0xe2, 0x00, 0x4a, 0x6d, 0x03, 0x0c, + 0x00, 0x12, 0x34, 0x00, 0x44, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0xd0 +}; + /* * edid-decode (hex): *