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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/usb/usb_interface_android.h"
#include "base/android/build_info.h"
#include "device/usb/usb_endpoint_android.h"
#include "jni/ChromeUsbInterface_jni.h"
using base::android::ScopedJavaLocalRef;
namespace device {
// static
UsbInterfaceDescriptor UsbInterfaceAndroid::Convert(
JNIEnv* env,
const base::android::JavaRef<jobject>& usb_interface) {
ScopedJavaLocalRef<jobject> wrapper =
Java_ChromeUsbInterface_create(env, usb_interface);
uint8_t alternate_setting = 0;
if (base::android::BuildInfo::GetInstance()->sdk_int() >= 21) {
alternate_setting =
Java_ChromeUsbInterface_getAlternateSetting(env, wrapper);
}
UsbInterfaceDescriptor interface(
Java_ChromeUsbInterface_getInterfaceNumber(env, wrapper),
alternate_setting,
Java_ChromeUsbInterface_getInterfaceClass(env, wrapper),
Java_ChromeUsbInterface_getInterfaceSubclass(env, wrapper),
Java_ChromeUsbInterface_getInterfaceProtocol(env, wrapper));
ScopedJavaLocalRef<jobjectArray> endpoints =
Java_ChromeUsbInterface_getEndpoints(env, wrapper);
jsize count = env->GetArrayLength(endpoints.obj());
interface.endpoints.reserve(count);
for (jsize i = 0; i < count; ++i) {
ScopedJavaLocalRef<jobject> endpoint(
env, env->GetObjectArrayElement(endpoints.obj(), i));
interface.endpoints.push_back(UsbEndpointAndroid::Convert(env, endpoint));
}
return interface;
}
} // namespace device
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