commit 0da787d5b64d3b6338f368ccb52aea31e23a556b
author Yumi Yukimura <me.cafebabe@gmail.com> Mon Jun 24 22:26:38 2024 +0800
committer LuK1337 <priv.luk@gmail.com> Thu Jun 27 08:09:54 2024 +0200
tree f62b5b48a08c2bc5eb16c550b5adfbb9298e7c07
parent 3c47c8c03dc5f66de03a38fd2516db25275e4621

USBGadgetHAL: Add support for UVC function

* Used gs101 USB Gadget AIDL HAL as reference

Change-Id: I891f3433de9c3fefbff9955cd3b8ef06b8fb80af

hal/UsbGadget.cpp

diff --git a/hal/UsbGadget.cpp b/hal/UsbGadget.cpp
index d311bd0..c1a5d53 100644
--- a/hal/UsbGadget.cpp
+++ b/hal/UsbGadget.cpp
@@ -50,6 +50,7 @@
 #define PERSIST_VENDOR_USB_PROP "persist.vendor.usb.config"
 #define PERSIST_VENDOR_USB_EXTRA_PROP "persist.vendor.usb.config.extra"
 #define QDSS_INST_NAME_PROP "vendor.usb.qdss.inst.name"
+#define UVC_ENABLED_PROP "ro.usb.uvc.enabled"
 #define CONFIG_STRING CONFIG_PATH "strings/0x409/configuration"
 
 namespace android {
@@ -60,6 +61,7 @@
 namespace implementation {
 
 using ::android::sp;
+using ::android::base::GetBoolProperty;
 using ::android::base::GetProperty;
 using ::android::base::SetProperty;
 using ::android::base::WriteStringToFile;
@@ -77,6 +79,9 @@
 using ::android::hardware::usb::gadget::unlinkFunctions;
 using ::android::hardware::usb::gadget::V1_2::UsbSpeed;
 
+// Matches the definition in AIDL Gadget HAL
+constexpr auto kGadgetFunctionUvc = 1 << 7;
+
 static std::map<std::string, std::tuple<std::string, std::string, std::string> >
 supported_compositions;
 
@@ -331,6 +336,22 @@
 	    GadgetFunction::AUDIO_SOURCE:
       ret = setVidPid("0x18d1", "0x2d05");
       break;
+    case kGadgetFunctionUvc:
+        if (!GetBoolProperty(UVC_ENABLED_PROP, false)) {
+            ALOGE("UVC function not enabled by config");
+            ret = Status::CONFIGURATION_NOT_SUPPORTED;
+        } else {
+            ret = setVidPid("0x18d1", "0x4eed");
+        }
+        break;
+    case GadgetFunction::ADB | kGadgetFunctionUvc:
+        if (!GetBoolProperty(UVC_ENABLED_PROP, false)) {
+            ALOGE("UVC function not enabled by config");
+            ret = Status::CONFIGURATION_NOT_SUPPORTED;
+        } else {
+            ret = setVidPid("0x18d1", "0x4eee");
+        }
+        break;
     default:
       ALOGE("Combination not supported");
       ret = Status::CONFIGURATION_NOT_SUPPORTED;
@@ -396,6 +417,18 @@
       ffsEnabled = true;
       if (addAdb(&mMonitorFfs, &i) != Status::SUCCESS) return Status::ERROR;
     }
+
+    if ((functions & kGadgetFunctionUvc) != 0) {
+        if (!GetBoolProperty(UVC_ENABLED_PROP, false)) {
+            ALOGE("UVC function disabled by config");
+            return Status::ERROR;
+        }
+
+        ALOGI("setCurrentUsbFunctions uvc");
+        if (linkFunction("uvc.0", i++)) {
+            return Status::ERROR;
+        }
+    }
   }
 
   if (functions & (GadgetFunction::ADB | GadgetFunction::MTP | GadgetFunction::PTP)) {