commit aa537df10d8350d20b9a1bfed8d3f73104634d73
author Saurabh Shah <saurshah@codeaurora.org> Wed Sep 12 13:21:11 2012 -0700
committer Iliyan Malchev <malchev@google.com> Wed Sep 12 13:43:51 2012 -0700
tree 3b1d1acf3cb079287269b1491c95323819de81ca
parent 139e162e3457f86a7b4a6b4927c75c477ef98100

hwc: Add some debug and warning logs.

Add debug logs for blank, unblank and warning logs for composition on powerdown.

Change-Id: I184a9503a26d401cf70e072815603a47d3972eed

libhwcomposer/hwc.cpp

diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 02b19b8..15b712c 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -81,6 +81,10 @@
     hwc_context_t* ctx = (hwc_context_t*)(dev);
     ctx->overlayInUse = false;
 
+    if(ctx->isPoweredDown) {
+        ALOGW("SurfaceFlinger called %s after a POWERDOWN", __FUNCTION__);
+    }
+
     for (uint32_t i = 0; i <numDisplays; i++) {
         hwc_display_contents_1_t* list = displays[i];
         ctx->dpys[i] = list->dpy;
@@ -145,9 +149,13 @@
     if(blank) {
         ctx->mOverlay->setState(ovutils::OV_CLOSED);
         ctx->qbuf->unlockAllPrevious();
+        ALOGD("HWC Calling POWERDOWN ...");
         ioctl(m->framebuffer->fd, FBIOBLANK, FB_BLANK_POWERDOWN);
+        ctx->isPoweredDown = true;
     } else {
+        ALOGD("HWC Calling UNBLANK ...");
         ioctl(m->framebuffer->fd, FBIOBLANK, FB_BLANK_UNBLANK);
+        ctx->isPoweredDown = false;
     }
     return 0;
 }

libhwcomposer/hwc_utils.h

diff --git a/libhwcomposer/hwc_utils.h b/libhwcomposer/hwc_utils.h
index 04bf864..9cb6e15 100644
--- a/libhwcomposer/hwc_utils.h
+++ b/libhwcomposer/hwc_utils.h
@@ -156,6 +156,7 @@
 
     qhwc::MDPInfo mMDP;
 
+    bool isPoweredDown;
 };
 
 #endif //HWC_UTILS_H