[Intel-gfx] [i-g-t PATCH 2/2] tests/kms_hdmi_inject: Test to make use of HDMI injection capabilities.

[Abdiel Janulgue]

From: Marius Vlad <marius.c.vlad at intel.com>

v2: - Make test work >= GEN8.
    - Skip audio injection for now.

Signed-off-by: Marius Vlad <marius.c.vlad at intel.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue at linux.intel.com>
---
 tests/Makefile.sources  |   1 +
 tests/kms_hdmi_inject.c | 140 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+)
 create mode 100644 tests/kms_hdmi_inject.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 6e07d93..ec135d1 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -221,6 +221,7 @@ TESTS_progs = \
 	gen3_render_tiledx_blits \
 	gen3_render_tiledy_blits \
 	gen7_forcewake_mt \
+	kms_hdmi_inject \
 	kms_3d \
 	kms_fence_pin_leak \
 	kms_force_connector_basic \
diff --git a/tests/kms_hdmi_inject.c b/tests/kms_hdmi_inject.c
new file mode 100644
index 0000000..1fc45e7
--- /dev/null
+++ b/tests/kms_hdmi_inject.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2017 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include "igt.h"
+
+#define HDISPLAY_4K	3840
+#define VDISPLAY_4K	2160
+
+IGT_TEST_DESCRIPTION("Tests 4K HDMI injection.");
+
+static drmModeConnector *
+get_connector(int drm_fd, drmModeRes *res)
+{
+	int i;
+	drmModeConnector *connector;
+
+	for (i = 0; i < res->count_connectors; i++) {
+
+		connector =
+			drmModeGetConnectorCurrent(drm_fd, res->connectors[i]);
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA &&
+		    connector->connection == DRM_MODE_DISCONNECTED)
+			break;
+
+		drmModeFreeConnector(connector);
+		connector = NULL;
+	}
+
+	return connector;
+}
+
+static void
+hdmi_inject_4k(int drm_fd, drmModeConnector *connector)
+{
+	unsigned char *edid;
+	size_t length;
+	struct kmstest_connector_config config;
+	int ret, cid, i, crtc_mask = -1;
+	int fb_id;
+	struct igt_fb fb;
+	uint8_t found_4k_mode = 0;
+	uint32_t devid;
+
+	devid = intel_get_drm_devid(drm_fd);
+
+	/* 4K requires at least HSW */
+	igt_require(IS_HASWELL(devid) || intel_gen(devid) >= 8);
+
+	kmstest_edid_add_4k(igt_kms_get_base_edid(), EDID_LENGTH, &edid,
+			    &length);
+
+	kmstest_force_edid(drm_fd, connector, edid, length);
+
+	if (!kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_ON))
+		igt_skip("Could not force connector on\n");
+
+	cid = connector->connector_id;
+
+	connector = drmModeGetConnectorCurrent(drm_fd, cid);
+
+	for (i = 0; i < connector->count_modes; i++) {
+		if (connector->modes[i].hdisplay == HDISPLAY_4K &&
+		    connector->modes[i].vdisplay == VDISPLAY_4K) {
+			found_4k_mode++;
+			break;
+		}
+	}
+
+	igt_assert(found_4k_mode);
+
+	/* create a configuration */
+	ret = kmstest_get_connector_config(drm_fd, cid, crtc_mask, &config);
+	igt_assert(ret);
+
+	igt_info("  ");
+	kmstest_dump_mode(&connector->modes[i]);
+
+	/* create framebuffer */
+	fb_id = igt_create_fb(drm_fd, connector->modes[i].hdisplay,
+			      connector->modes[i].vdisplay,
+			      DRM_FORMAT_XRGB8888,
+			      LOCAL_DRM_FORMAT_MOD_NONE, &fb);
+
+	ret = drmModeSetCrtc(drm_fd, config.crtc->crtc_id, fb_id, 0, 0,
+			     &connector->connector_id, 1,
+			     &connector->modes[i]);
+
+	igt_assert(ret == 0);
+
+	igt_remove_fb(drm_fd, &fb);
+
+	kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_UNSPECIFIED);
+	kmstest_force_edid(drm_fd, connector, NULL, 0);
+
+	free(edid);
+}
+
+igt_main
+{
+	int drm_fd;
+	drmModeRes *res;
+	drmModeConnector *connector;
+
+	igt_fixture {
+		drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		res = drmModeGetResources(drm_fd);
+
+		connector = get_connector(drm_fd, res);
+		igt_require(connector);
+	}
+
+	igt_subtest("inject-4k")
+		hdmi_inject_4k(drm_fd, connector);
+
+	igt_fixture {
+		drmModeFreeConnector(connector);
+	}
+}
-- 
2.7.4