Initial definition of the Dumpstate HIDL interfaces.

BUG: 31982882
Test: manually built it

Change-Id: I3dd1d681061d16059ec9cf67869f20759fb75cd0

dumpstate/1.0/Android.bp

@@ -0,0 +1,49 @@
+// This file is autogenerated by hidl-gen. Do not edit manually.
+
+genrule {
+    name: "android.hardware.dumpstate@1.0_genc++",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces android.hardware.dumpstate@1.0",
+    srcs: [
+        "IDumpstateDevice.hal",
+    ],
+    out: [
+        "android/hardware/dumpstate/1.0/DumpstateDeviceAll.cpp",
+    ],
+}
+
+genrule {
+    name: "android.hardware.dumpstate@1.0_genc++_headers",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Lc++ -randroid.hardware:hardware/interfaces android.hardware.dumpstate@1.0",
+    srcs: [
+        "IDumpstateDevice.hal",
+    ],
+    out: [
+        "android/hardware/dumpstate/1.0/IDumpstateDevice.h",
+        "android/hardware/dumpstate/1.0/IHwDumpstateDevice.h",
+        "android/hardware/dumpstate/1.0/BnDumpstateDevice.h",
+        "android/hardware/dumpstate/1.0/BpDumpstateDevice.h",
+        "android/hardware/dumpstate/1.0/BsDumpstateDevice.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.dumpstate@1.0",
+    generated_sources: ["android.hardware.dumpstate@1.0_genc++"],
+    generated_headers: ["android.hardware.dumpstate@1.0_genc++_headers"],
+    export_generated_headers: ["android.hardware.dumpstate@1.0_genc++_headers"],
+    shared_libs: [
+        "libhidlbase",
+        "libhidltransport",
+        "libhwbinder",
+        "libutils",
+        "libcutils",
+    ],
+    export_shared_lib_headers: [
+        "libhidlbase",
+        "libhidltransport",
+        "libhwbinder",
+        "libutils",
+    ],
+}

dumpstate/1.0/IDumpstateDevice.hal

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.dumpstate@1.0;
+
+interface IDumpstateDevice {
+    /*
+     * Dumps device-specific state into the given file descriptor.
+     */
+    dumpstateBoard(handle h);
+};

dumpstate/1.0/default/Android.mk

@@ -0,0 +1,22 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.dumpstate@1.0-impl
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := \
+    DumpstateDevice.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+    android.hardware.dumpstate@1.0 \
+    libbase \
+    libcutils \
+    libhidlbase \
+    libhidltransport \
+    libhwbinder \
+    liblog \
+    libutils
+
+LOCAL_STATIC_LIBRARIES := \
+    libdumpstateutil
+
+include $(BUILD_SHARED_LIBRARY)

dumpstate/1.0/default/DumpstateDevice.cpp

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+#define LOG_TAG "dumpstate"
+
+#include "DumpstateDevice.h"
+
+#include <log/log.h>
+
+#include "DumpstateUtil.h"
+
+namespace android {
+namespace hardware {
+namespace dumpstate {
+namespace V1_0 {
+namespace implementation {
+
+// Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
+Return<void> DumpstateDevice::dumpstateBoard(const native_handle_t* handle) {
+    if (handle->numFds < 1) {
+        ALOGE("no FDs\n");
+        return Void();
+    }
+
+    int fd = handle->data[0];
+    if (fd < 0) {
+        ALOGE("invalid FD: %d\n", handle->data[0]);
+        return Void();
+    }
+    ALOGD("DumpstateDevice::dumpstateBoard() FD: %d\n", fd);
+    ALOGI("Dumpstate HIDL not provided by device\n");
+    dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n");
+
+    // Shows some examples on how to use the libdumpstateutils API.
+    dprintf(fd, "Time now is: ");
+    RunCommandToFd(fd, {"/system/bin/date"});
+    dprintf(fd, "Contents of a small file (/system/etc/hosts):\n");
+    DumpFileToFd(fd, "/system/etc/hosts");
+
+    return Void();
+}
+
+
+IDumpstateDevice* HIDL_FETCH_IDumpstateDevice(const char* /* name */) {
+    // TODO: temporary returning nullptr until it's implemented on master devices
+    return nullptr;
+//    return new DumpstateDevice();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace dumpstate
+}  // namespace hardware
+}  // namespace android

dumpstate/1.0/default/DumpstateDevice.h

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+#ifndef ANDROID_HARDWARE_DUMPSTATE_V1_0_DUMPSTATEDEVICE_H
+#define ANDROID_HARDWARE_DUMPSTATE_V1_0_DUMPSTATEDEVICE_H
+
+#include <android/hardware/dumpstate/1.0/IDumpstateDevice.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+namespace android {
+namespace hardware {
+namespace dumpstate {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::dumpstate::V1_0::IDumpstateDevice;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+struct DumpstateDevice : public IDumpstateDevice {
+    // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
+    Return<void> dumpstateBoard(const native_handle_t* fd) override;
+
+};
+
+extern "C" IDumpstateDevice* HIDL_FETCH_IDumpstateDevice(const char* name);
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace dumpstate
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_DUMPSTATE_V1_0_DUMPSTATEDEVICE_H

dumpstate/Android.bp

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+// This is an autogenerated file, do not edit.
+subdirs = [
+    "1.0",
+]