sdm: drm: Add support for default non-atomic mode
Add support for booting up with default non-atomic mode
Add libdrmutils that currently has:
DRMMaster:
Creates a master DRM session
Converts ION handles to DRM FB_ID
DRMResMgr:
Enables a default display path by providing APIs for
connector id, crtc id, mode etc
Change-Id: I1dc697d2cc5e3fa744c99e2c9ddd57bf06e78c4f
CRs-fixed: 1114808
diff --git a/libdrmutils/drm_res_mgr.h b/libdrmutils/drm_res_mgr.h
new file mode 100644
index 0000000..3a8378c
--- /dev/null
+++ b/libdrmutils/drm_res_mgr.h
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of The Linux Foundation nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __DRM_RES_MGR_H__
+#define __DRM_RES_MGR_H__
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include <mutex>
+
+namespace drm_utils {
+
+class DRMResMgr {
+ public:
+ /* Returns the default connector id for primary panel */
+ void GetConnectorId(uint32_t *id) { *id = conn_->connector_id; }
+ /* Returns the default crtc id for primary pipeline */
+ void GetCrtcId(uint32_t *id) { *id = crtc_->crtc_id; }
+ /* Returns the default mode currently used by the connector */
+ void GetMode(drmModeModeInfo *mode) { *mode = conn_->modes[0]; }
+ /* Returns the panel dimensions in mm */
+ void GetDisplayDimInMM(uint32_t *w, uint32_t *h) {
+ *w = conn_->mmWidth;
+ *h = conn_->mmHeight;
+ }
+
+ /* Creates and initializes an instance of DRMResMgr. On success, returns a pointer to it, on
+ * failure returns -ENODEV */
+ static int GetInstance(DRMResMgr **res_mgr);
+
+ private:
+ int Init();
+
+ drmModeRes *res_ = nullptr;
+ drmModeConnector *conn_ = nullptr;
+ drmModeEncoder *enc_ = nullptr;
+ drmModeCrtc *crtc_ = nullptr;
+
+ static DRMResMgr *s_instance;
+ static std::mutex s_lock;
+};
+
+} // namespace drm_utils
+
+#endif // __DRM_RES_MGR_H__