commit f8ec162999478a3f96dd945831f7c2913a4d3cff
author Naseer Ahmed <naseer@codeaurora.org> Tue Jul 31 18:56:23 2012 -0700
committer Iliyan Malchev <malchev@google.com> Tue Aug 14 14:18:07 2012 -0700
tree f2ac10b2e9cf496099887697273d5623ed91055a
parent 72cf9762f84aab07faab86e35fe830b63ec54d72

hwc: enable vsync for external display

- wait for hdmi vsync when connected to hdmi
- add commit to call PANDISPLAY for updating ext display
- add functions to close fb and reset info

Change-Id: I49afbeb85935b111055a872b29a1f65d87ab72c9
Acked-by: Arun Kumar K.R <akumarkr@codeaurora.org>

libhwcomposer/hwc_uevents.cpp

diff --git a/libhwcomposer/hwc_uevents.cpp b/libhwcomposer/hwc_uevents.cpp
index a1df74b..f58fbd3 100644
--- a/libhwcomposer/hwc_uevents.cpp
+++ b/libhwcomposer/hwc_uevents.cpp
@@ -30,21 +30,30 @@
 
 namespace qhwc {
 
-const char* MSMFB_DEVICE_CHANGE = "change@/devices/virtual/graphics/fb0";
+const char* MSMFB_DEVICE_FB0 = "change@/devices/virtual/graphics/fb0";
+const char* MSMFB_DEVICE_FB1 = "change@/devices/virtual/graphics/fb1";
 const char* MSMFB_HDMI_NODE = "fb1";
 
 static void handle_uevent(hwc_context_t* ctx, const char* udata, int len)
 {
-    int vsync;
+    int vsync = 0;
     char* hdmi;
     int64_t timestamp = 0;
     const char *str = udata;
-    hwc_procs* proc = reinterpret_cast<hwc_procs*>(ctx->device.reserved_proc[0]);
+    hwc_procs* proc = (hwc_procs*)ctx->device.reserved_proc[0];
+    int hdmiconnected = ctx->mExtDisplay->getExternalDisplay();
 
-    vsync = !strncmp(str, MSMFB_DEVICE_CHANGE, strlen(MSMFB_DEVICE_CHANGE));
-    hdmi = strcasestr(str, MSMFB_HDMI_NODE);
-    if(!vsync && !hdmi)
+    if(!strcasestr(str, "@/devices/virtual/graphics/fb")) {
+        ALOGD_IF(DEBUG, "%s: Not Ext Disp Event ", __FUNCTION__);
         return;
+    }
+
+    if(hdmiconnected)
+        vsync = !strncmp(str, MSMFB_DEVICE_FB1, strlen(MSMFB_DEVICE_FB1));
+    else
+        vsync = !strncmp(str, MSMFB_DEVICE_FB0, strlen(MSMFB_DEVICE_FB0));
+
+    hdmi = strcasestr(str, MSMFB_HDMI_NODE);
     if(vsync) {
         str += strlen(str) + 1;
         while(*str) {
@@ -56,6 +65,7 @@
             if(str - udata >= len)
                 break;
         }
+        return;
     }
 
     if(hdmi) {
@@ -72,7 +82,7 @@
         } else if(!(strncmp(str,"offline@",strlen("offline@")))) {
             connected = 0;
         }
-        ctx->mExtDisplay->setExternalDisplayStatus(connected);
+        ctx->mExtDisplay->setExternalDisplay(connected);
     }
 
 }