Expose EDID fields in DeviceProductInfo
Expose product-specific information (display name, manufacture date,
manufacturer Pnp ID) about the display or the directly connected device
on the display chain. For example, if the display is transitively
connected, these fields may contain product information about the
intermediate device.
Additionally this information can be used to prime a TV with entries
from an infrared database for controlling connected audio and TV devices.
Bug: 145299597
Fixes: 140223709
Test: atest DisplayIdentificationTest
Change-Id: Idec0d053d945e3c171e2cdd80773c9d869934020
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index a98ff4f..dcbd934 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -798,6 +798,7 @@
}
info->secure = display->isSecure();
+ info->deviceProductInfo = getDeviceProductInfoLocked(*display);
return NO_ERROR;
}
@@ -1272,6 +1273,30 @@
return NO_ERROR;
}
+std::optional<DeviceProductInfo> SurfaceFlinger::getDeviceProductInfoLocked(
+ const DisplayDevice& display) const {
+ // TODO(b/149075047): Populate DeviceProductInfo on hotplug and store it in DisplayDevice to
+ // avoid repetitive HAL IPC and EDID parsing.
+ const auto displayId = display.getId();
+ LOG_FATAL_IF(!displayId);
+
+ const auto hwcDisplayId = getHwComposer().fromPhysicalDisplayId(*displayId);
+ LOG_FATAL_IF(!hwcDisplayId);
+
+ uint8_t port;
+ DisplayIdentificationData data;
+ if (!getHwComposer().getDisplayIdentificationData(*hwcDisplayId, &port, &data)) {
+ ALOGV("%s: No identification data.", __FUNCTION__);
+ return {};
+ }
+
+ const auto info = parseDisplayIdentificationData(port, data);
+ if (!info) {
+ return {};
+ }
+ return info->deviceProductInfo;
+}
+
status_t SurfaceFlinger::getDisplayedContentSamplingAttributes(const sp<IBinder>& displayToken,
ui::PixelFormat* outFormat,
ui::Dataspace* outDataspace,