From 8909a95085772f73dd6bbf6bfef6eb277843a6ca Mon Sep 17 00:00:00 2001
From: Changyeon Lee <cyeon.lee@samsung.com>
Date: Tue, 27 Oct 2020 14:53:53 +0900
Subject: [PATCH] tdm_hwc: add tdm_hwc_get_commit_interval interface

Change-Id: Iacc89ddf45f5f7bea9b50f1292b7186c035a0a41
---
 include/tdm.h         |  9 +++++++++
 include/tdm_backend.h |  8 ++++++++
 include/tdm_types.h   |  8 ++++++++
 src/tdm_hwc.c         | 27 +++++++++++++++++++++++++++
 4 files changed, 52 insertions(+)

diff --git a/include/tdm.h b/include/tdm.h
index 4a9d60d..92718f7 100644
--- a/include/tdm.h
+++ b/include/tdm.h
@@ -1094,6 +1094,15 @@ tdm_hwc_get_release_fences(tdm_hwc *hwc, uint32_t *num_elements,
 						tdm_hwc_window **hwc_windows, int *fences);
 
 /**
+ * @brief Get the commit interval
+ * @param[in] hwc A hwc object
+ * @param[out] interval commit interval of backend
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_hwc_get_commit_interval(tdm_hwc *hwc, tdm_hwc_commit_interval *interval);
+
+/**
  * @brief Set the property which has a given id on the hwc object.
  * @param[in] hwc A hwc object
  * @param[in] id The property id
diff --git a/include/tdm_backend.h b/include/tdm_backend.h
index f1f8084..5fe3f34 100644
--- a/include/tdm_backend.h
+++ b/include/tdm_backend.h
@@ -1016,6 +1016,14 @@ typedef struct _tdm_func_hwc {
 	 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
 	 */
 	tdm_error (*hwc_get_property)(tdm_hwc *hwc, uint32_t id, tdm_value *value);
+
+	/**
+	 * @brief Get the commit interval
+	 * @param[in] hwc A hwc object
+	 * @param[out] interval commit interval of backend
+	 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+	 */
+	tdm_error (*hwc_get_commit_interval)(tdm_hwc *hwc, tdm_hwc_commit_interval *interval);
 } tdm_func_hwc;
 
 /**
diff --git a/include/tdm_types.h b/include/tdm_types.h
index d9ab984..4846002 100644
--- a/include/tdm_types.h
+++ b/include/tdm_types.h
@@ -222,6 +222,14 @@ typedef enum {
 	TDM_HWC_WIN_CONSTRAINT_BUFFER_QUEUE = (1 << 0),
 } tdm_hwc_window_constraint;
 
+typedef enum {
+	TDM_HWC_COMMIT_INTERVAL_NONE = 0,
+	/** If this interval is set by tdm backend, the compositor call commit per vblank
+	 *  even if the handler of commit isn't called.
+	 */
+	TDM_HWC_COMMIT_INTERVAL_VBLANK = 1,
+} tdm_hwc_commit_interval;
+
 /**
  * @brief The tdm display object
  */
diff --git a/src/tdm_hwc.c b/src/tdm_hwc.c
index ccf85ce..76865e0 100644
--- a/src/tdm_hwc.c
+++ b/src/tdm_hwc.c
@@ -964,3 +964,30 @@ tdm_hwc_get_property(tdm_hwc *hwc, uint32_t id, tdm_value *value)
 
 	return ret;
 }
+
+tdm_error
+tdm_hwc_get_commit_interval(tdm_hwc *hwc, tdm_hwc_commit_interval *refresh)
+{
+	tdm_private_module *private_module;
+	tdm_func_hwc *func_hwc = NULL;
+
+	HWC_FUNC_ENTRY();
+
+	_pthread_mutex_lock(&private_display->lock);
+
+	private_module = private_hwc->private_module;
+	func_hwc = &private_module->func_hwc;
+
+	/* LCOV_EXCL_START */
+	if (!func_hwc->hwc_get_commit_interval) {
+		_pthread_mutex_unlock(&private_display->lock);
+		return TDM_ERROR_NOT_IMPLEMENTED;
+	}
+
+	ret = func_hwc->hwc_get_commit_interval(private_hwc->hwc_backend, refresh);
+	/* LCOV_EXCL_STOP */
+
+	_pthread_mutex_unlock(&private_display->lock);
+
+	return ret;
+}
-- 
2.7.4