void ExternalDisplay::setExternalDisplay(int connected)
{
hwc_context_t* ctx = mHwcContext;
if(ctx) {
ALOGD_IF(DEBUG, "%s: status = %d", __FUNCTION__,
connected);
if(connected) {
readResolution();
//Get the best mode and set
// TODO: Move this to activate
setResolution(getBestMode());
setDpyAttr();
//enable hdmi vsync
} else {
// Disable the hdmi vsync
closeFrameBuffer();
resetInfo();
}
// Store the external display
mExternalDisplay = connected;
const char* prop = (connected) ? "1" : "0";
// set system property
property_set("hw.hdmiON", prop);
}
return;
}
void ExternalDisplay::processUEventOnline(const char *str) {
const char *s1 = str + (strlen(str)-strlen(DEVICE_NODE_FB1));
// check if it is for FB1
if(strncmp(s1,DEVICE_NODE_FB1, strlen(DEVICE_NODE_FB1))== 0) {
if(isHDMIConfigured()) {
// HDMI connect event.
// Tear-down WFD if it is active.
if(mExternalDisplay == EXTERN_DISPLAY_FB2) {
closeFrameBuffer();
setExternalDisplay(EXTERN_DISPLAY_NONE);
triggerRefresh();
}
}
readResolution();
//Get the best mode and set
setResolution(getBestMode());
enableHDMIVsync(EXTERN_DISPLAY_FB1);
setExternalDisplay(EXTERN_DISPLAY_FB1);
triggerRefresh();
}
else if(strncmp(s1, DEVICE_NODE_FB2, strlen(DEVICE_NODE_FB2)) == 0) {
// WFD connect event
if(mExternalDisplay == EXTERN_DISPLAY_FB1) {
// HDMI has higher priority.
// Do Not Override.
}else {
// WFD is connected
openFrameBuffer(EXTERN_DISPLAY_FB2);
setExternalDisplay(EXTERN_DISPLAY_FB2);
triggerRefresh();
}
}
}
int HDMIDisplay::configure() {
if(!openFrameBuffer()) {
ALOGE("%s: Failed to open FB: %d", __FUNCTION__, mFbNum);
return -1;
}
readCEUnderscanInfo();
readResolution();
// TODO: Move this to activate
/* Used for changing the resolution
* getUserMode will get the preferred
* mode set thru adb shell */
mCurrentMode = getUserMode();
if (mCurrentMode == -1) {
//Get the best mode and set
mCurrentMode = getBestMode();
}
setAttributes();
// set system property
property_set("hw.hdmiON", "1");
// Read the system property to determine if downscale feature is enabled.
char value[PROPERTY_VALUE_MAX];
mMDPDownscaleEnabled = false;
if(property_get("sys.hwc.mdp_downscale_enabled", value, "false")
&& !strcmp(value, "true")) {
mMDPDownscaleEnabled = true;
}
return 0;
}
void ExtDisplayObserver::handleUEvent(char* str){
int connected = 0;
// TODO: check for fb2(WFD) driver also
if(!strcasestr(str, DEVICE_NODE))
{
ALOGD_IF(EXT_OBSERVER_DEBUG, "%s: Not Ext Disp Event ", __FUNCTION__);
return;
}
// Event will be of the form:
// change@/devices/virtual/graphics/fb1 ACTION=change
// DEVPATH=/devices/virtual/graphics/fb1
// SUBSYSTEM=graphics HDCP_STATE=FAIL MAJOR=29
// for now just parse the online or offline are important for us.
if(!(strncmp(str,"online@",strlen("online@")))) {
ALOGD_IF(EXT_OBSERVER_DEBUG, "%s: external disp online", __FUNCTION__);
connected = 1;
readResolution();
//Get the best mode and set
// TODO: DO NOT call this for WFD
setResolution(getBestMode());
} else if(!(strncmp(str,"offline@",strlen("offline@")))) {
ALOGD_IF(EXT_OBSERVER_DEBUG, "%s: external disp online", __FUNCTION__);
connected = 0;
close(fd);
}
setExternalDisplayStatus(connected);
}
int ExternalDisplay::configureHDMIDisplay() {
openFrameBuffer(mHdmiFbNum);
if(mFd == -1)
return -1;
readCEUnderscanInfo();
readResolution();
// TODO: Move this to activate
/* Used for changing the resolution
* getUserMode will get the preferred
* mode set thru adb shell */
int mode = getUserMode();
if (mode == -1) {
//Get the best mode and set
mode = getBestMode();
}
setResolution(mode);
setDpyHdmiAttr();
setExternalDisplay(true, mHdmiFbNum);
return 0;
}
