livedisplay: Detect accessibility_max for ReadingEnhancementExynos

Change-Id: I1bea733a9222004ec6d964c1c25ae16d8c46c796
2019-02-07 22:26:37 +01:00 · 2019-02-07 22:26:37 +01:00 · 1bb761b224
parent adf0b2846e
commit 1bb761b224
1 changed files with 11 additions and 0 deletions
--- a/lineagehw/hidl/livedisplay/ReadingEnhancementExynos.cpp
+++ b/lineagehw/hidl/livedisplay/ReadingEnhancementExynos.cpp
@ -26,6 +26,17 @@ namespace samsung {

 // Methods from ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement follow.
 bool ReadingEnhancementExynos::isSupported() {
+    std::ifstream max_file("/sys/class/mdnie/mdnie/accessibility_max");
+    int max;
+
+    if (max_file.is_open()) {
+        max_file >> max;
+    }
+
+    if (max_file.good()) {
+        return max > 4;
+    }
+
    std::ofstream file("/sys/class/mdnie/mdnie/accessibility");
    return file.good();
 }