tests/kms_force_connector: Include in BAT set

Forcing connector state is a basic piece of our test infrastructure
that we use in all the kms_ tests. It allows us to run tests even if
no outputs are connected.

They're also really fast, so perfect candidates for inclusion into the
BAT set.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/tests/kms_force_connector_basic.c b/tests/kms_force_connector_basic.c
new file mode 100644
index 00000000..637f625a
--- /dev/null
+++ b/tests/kms_force_connector_basic.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright © 2014 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"
+
+IGT_TEST_DESCRIPTION("Check the debugfs force connector/edid features work"
+		     " correctly.");
+
+#define CHECK_MODE(m, h, w, r) \
+	igt_assert_eq(m.hdisplay, h); igt_assert_eq(m.vdisplay, w); \
+	igt_assert_eq(m.vrefresh, r);
+
+static void reset_connectors(void)
+{
+	int drm_fd = 0;
+	drmModeRes *res;
+	drmModeConnector *connector = NULL;
+
+	drm_fd = drm_open_driver_master(DRIVER_INTEL);
+	res = drmModeGetResources(drm_fd);
+
+	for (int i = 0; i < res->count_connectors; i++) {
+
+		connector = drmModeGetConnectorCurrent(drm_fd,
+						       res->connectors[i]);
+
+		kmstest_force_connector(drm_fd, connector,
+					FORCE_CONNECTOR_UNSPECIFIED);
+
+		kmstest_force_edid(drm_fd, connector, NULL, 0);
+
+		drmModeFreeConnector(connector);
+	}
+}
+
+static int opt_handler(int opt, int opt_index, void *data)
+{
+	switch (opt) {
+	case 'r':
+		reset_connectors();
+		exit(0);
+		break;
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	/* force the VGA output and test that it worked */
+	int drm_fd = 0;
+	drmModeRes *res;
+	drmModeConnector *vga_connector = NULL, *temp;
+	int start_n_modes, start_connection;
+	struct option long_opts[] = {
+		{"reset", 0, 0, 'r'},
+		{0, 0, 0, 0}
+	};
+	const char *help_str =
+	       "  --reset\t\tReset all connector force states and edid.\n";
+
+	igt_subtest_init_parse_opts(&argc, argv, "", long_opts, help_str,
+				    opt_handler, NULL);
+
+	igt_fixture {
+		drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		res = drmModeGetResources(drm_fd);
+
+		/* find the vga connector */
+		for (int i = 0; i < res->count_connectors; i++) {
+
+			vga_connector = drmModeGetConnectorCurrent(drm_fd,
+								   res->connectors[i]);
+
+			if (vga_connector->connector_type == DRM_MODE_CONNECTOR_VGA) {
+				start_n_modes = vga_connector->count_modes;
+				start_connection = vga_connector->connection;
+				break;
+			}
+
+			drmModeFreeConnector(vga_connector);
+
+			vga_connector = NULL;
+		}
+
+		igt_require(vga_connector);
+		igt_skip_on(vga_connector->connection == DRM_MODE_CONNECTED);
+	}
+
+	igt_subtest("force-connector-state") {
+		igt_display_t display;
+
+		/* force the connector on and check the reported values */
+		kmstest_force_connector(drm_fd, vga_connector, FORCE_CONNECTOR_ON);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+		igt_assert_eq(temp->connection, DRM_MODE_CONNECTED);
+		igt_assert_lt(0, temp->count_modes);
+		drmModeFreeConnector(temp);
+
+		/* attempt to use the display */
+		kmstest_set_vt_graphics_mode();
+		igt_display_init(&display, drm_fd);
+		igt_display_commit(&display);
+		igt_display_fini(&display);
+
+
+		/* force the connector off */
+		kmstest_force_connector(drm_fd, vga_connector,
+					FORCE_CONNECTOR_OFF);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+		igt_assert_eq(temp->connection, DRM_MODE_DISCONNECTED);
+		igt_assert_eq(0, temp->count_modes);
+		drmModeFreeConnector(temp);
+
+		/* check that the previous state is restored */
+		kmstest_force_connector(drm_fd, vga_connector,
+					FORCE_CONNECTOR_UNSPECIFIED);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+		igt_assert_eq(temp->connection, start_connection);
+		drmModeFreeConnector(temp);
+	}
+
+	igt_subtest("force-edid") {
+		kmstest_force_connector(drm_fd, vga_connector,
+					FORCE_CONNECTOR_ON);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+		drmModeFreeConnector(temp);
+
+		/* test edid forcing */
+		kmstest_force_edid(drm_fd, vga_connector,
+				   igt_kms_get_base_edid(), EDID_LENGTH);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+
+		igt_debug("num_conn %i\n", temp->count_modes);
+
+		CHECK_MODE(temp->modes[0], 1920, 1080, 60);
+		/* Don't check non-preferred modes to avoid to tight coupling
+		 * with the in-kernel EDID parser. */
+
+		drmModeFreeConnector(temp);
+
+		/* remove edid */
+		kmstest_force_edid(drm_fd, vga_connector, NULL, 0);
+		kmstest_force_connector(drm_fd, vga_connector,
+					FORCE_CONNECTOR_UNSPECIFIED);
+		temp = drmModeGetConnectorCurrent(drm_fd,
+						  vga_connector->connector_id);
+		/* the connector should now have the same number of modes that
+		 * it started with */
+		igt_assert_eq(temp->count_modes, start_n_modes);
+		drmModeFreeConnector(temp);
+
+	}
+
+	igt_fixture {
+		drmModeFreeConnector(vga_connector);
+		close(drm_fd);
+
+		reset_connectors();
+	}
+
+	igt_exit();
+}