igt_enable_connectors forces connectors to be enabled where doing so is
known to work well. igt_reset_connectors resets the force state on all
connectors.
---
lib/igt_kms.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
lib/igt_kms.h | 3 +++
2 files changed, 73 insertions(+)
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 86dec51..3fcb0da 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1148,3 +1148,73 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe)
igt_assert(drmWaitVBlank(drm_fd, &wait_vbl) == 0);
}
+
+static void reset_connectors_at_exit(int sig)
+{
+ igt_reset_connectors();
+}
+
+/**
+ * igt_enable_connectors:
+ *
+ * Force connectors to be enabled where this is known to work well. Use
+ * #igt_reset_connectors to revert the changes.
+ *
+ * An exit handler is installed to ensure connectors are reset when the test
+ * exits.
+ */
+void igt_enable_connectors(void)
+{
+ drmModeRes *res;
+ drmModeConnector *c;
+ int drm_fd;
+
+ drm_fd = drm_open_any();
+
+ res = drmModeGetResources(drm_fd);
+
+ for (int i = 0; i < res->count_connectors; i++) {
+
+ c = drmModeGetConnector(drm_fd, res->connectors[i]);
+
+ /* don't attempt to force connectors that are already connected
+ */
+ if (c->connection == DRM_MODE_CONNECTED)
+ continue;
+
+ /* just enable VGA for now */
+ if (c->connector_type == DRM_MODE_CONNECTOR_VGA)
+ kmstest_force_connector(drm_fd, c, FORCE_CONNECTOR_ON);
+
+ drmModeFreeConnector(c);
+ }
+ close(drm_fd);
+
+ igt_install_exit_handler(reset_connectors_at_exit);
+}
+
+/**
+ * igt_reset_connectors:
+ *
+ * Remove any forced state from the connectors.
+ */
+void igt_reset_connectors(void)
+{
+ drmModeRes *res;
+ drmModeConnector *c;
+ int drm_fd;
+
+ drm_fd = drm_open_any();
+ res = drmModeGetResources(drm_fd);
+
+ for (int i = 0; i < res->count_connectors; i++) {
+
+ c = drmModeGetConnector(drm_fd, res->connectors[i]);
+
+ kmstest_force_connector(drm_fd, c, FORCE_CONNECTOR_UNSPECIFIED);
+
+ drmModeFreeConnector(c);
+ }
+
+ close(drm_fd);
+}
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index 4cf74e8..d9b2c64 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -217,5 +217,8 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe);
#define IGT_FIXED(i,f) ((i) << 16 | (f))
+void igt_enable_connectors(void);
+void igt_reset_connectors(void);
+
#endif /* __IGT_KMS_H__ */
--
1.9.3
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