Remove power stats HAL 1.0 service

Bug: 179527556
Test: dumpsys android.hardware.power.stats.IPowerStats/default
Test: device boot and examined logs to make sure no errors related to
missing power stats 1.0

Change-Id: Ib8cc394f9968edaf948a2d9700e9f7fcaa5b9dc0

1 files changed, 0 insertions, 340 deletions

diff --git a/powerstats/RailDataProvider.cpp b/powerstats/RailDataProvider.cpp
deleted file mode 100644
index d0efc174..00000000
--- a/powerstats/RailDataProvider.cpp
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-
-#define LOG_TAG "libpixelpowerstats"
-
-#include "RailDataProvider.h"
-
-#include <android-base/file.h>
-#include <android-base/logging.h>
-#include <android-base/properties.h>
-#include <android-base/stringprintf.h>
-#include <android-base/strings.h>
-#include <inttypes.h>
-#include <stdlib.h>
-
-#include <algorithm>
-#include <exception>
-#include <thread>
-
-namespace android {
-namespace hardware {
-namespace google {
-namespace pixel {
-namespace powerstats {
-
-#define MAX_FILE_PATH_LEN 128
-#define MAX_DEVICE_NAME_LEN 64
-#define MAX_QUEUE_SIZE 8192
-
-constexpr char kIioDirRoot[] = "/sys/bus/iio/devices/";
-const char *const kDeviceNames[] = {"s2mpg10-odpm", "s2mpg11-odpm"};
-constexpr char kDeviceType[] = "iio:device";
-constexpr uint32_t MAX_SAMPLING_RATE = 10;
-constexpr uint64_t WRITE_TIMEOUT_NS = 1000000000;
-
-#define MAX_RAIL_NAME_LEN 50
-#define STR(s) #s
-#define XSTR(s) STR(s)
-
-void RailDataProvider::findIioPowerMonitorNodes() {
-    struct dirent *ent;
-    int fd;
-    char devName[MAX_DEVICE_NAME_LEN];
-    char filePath[MAX_FILE_PATH_LEN];
-    DIR *iioDir = opendir(kIioDirRoot);
-    if (!iioDir) {
-        ALOGE("Error opening directory: %s, error: %d", kIioDirRoot, errno);
-        return;
-    }
-    while (ent = readdir(iioDir), ent) {
-        if (strcmp(ent->d_name, ".") != 0 && strcmp(ent->d_name, "..") != 0 &&
-                strlen(ent->d_name) > strlen(kDeviceType) &&
-                strncmp(ent->d_name, kDeviceType, strlen(kDeviceType)) == 0) {
-            snprintf(filePath, MAX_FILE_PATH_LEN, "%s/%s", ent->d_name, "name");
-            fd = openat(dirfd(iioDir), filePath, O_RDONLY);
-            if (fd < 0) {
-                ALOGW("Failed to open directory: %s, error: %d", filePath, errno);
-                continue;
-            }
-            if (read(fd, devName, MAX_DEVICE_NAME_LEN) < 0) {
-                ALOGW("Failed to read device name from file: %s(%d)", filePath, fd);
-                close(fd);
-                continue;
-            }
-
-            for (const auto &kDeviceName : kDeviceNames) {
-                if (strncmp(devName, kDeviceName, strlen(kDeviceName)) == 0) {
-                    snprintf(filePath, MAX_FILE_PATH_LEN, "%s/%s", kIioDirRoot, ent->d_name);
-                    mOdpm.devicePaths.push_back(filePath);
-                }
-            }
-            close(fd);
-        }
-    }
-    closedir(iioDir);
-    return;
-}
-
-size_t RailDataProvider::parsePowerRails() {
-    std::string data;
-    std::string railFileName;
-    std::string spsFileName;
-    uint32_t index = 0;
-    uint32_t samplingRate;
-    for (const auto &path : mOdpm.devicePaths) {
-        railFileName = path + "/enabled_rails";
-        spsFileName = path + "/sampling_rate";
-        if (!android::base::ReadFileToString(spsFileName, &data)) {
-            ALOGW("Error reading file: %s", spsFileName.c_str());
-            continue;
-        }
-        samplingRate = strtoul(data.c_str(), NULL, 10);
-        if (!samplingRate || samplingRate == ULONG_MAX) {
-            ALOGE("Error parsing: %s", spsFileName.c_str());
-            break;
-        }
-        if (!android::base::ReadFileToString(railFileName, &data)) {
-            ALOGW("Error reading file: %s", railFileName.c_str());
-            continue;
-        }
-        std::istringstream railNames(data);
-        std::string line;
-        while (std::getline(railNames, line)) {
-            std::vector<std::string> words = android::base::Split(line, ":][");
-            if (words.size() == 4) {
-                const std::string channelName = words[1];
-                if (mOdpm.railsInfo.count(channelName) == 0) {
-                    const std::string subsysName = words[3];
-                    mOdpm.railsInfo.emplace(channelName, RailData{.devicePath = path,
-                                                            .index = index,
-                                                            .subsysName = subsysName,
-                                                            .samplingRate = samplingRate});
-                    index++;
-                } else {
-                    ALOGW("There exists rails with the same name (not supported): %s." \
-                        " Only the last occurrence of rail energy will be provided.",
-                        channelName.c_str());
-                }
-            } else {
-                ALOGW("Unexpected format in file: %s", railFileName.c_str());
-            }
-        }
-    }
-    return index;
-}
-
-int RailDataProvider::parseIioEnergyNodeString(const std::string &contents, OnDeviceMmt &odpm) {
-    std::istringstream energyData(contents);
-    std::string line;
-
-    int ret = 0;
-    uint64_t timestamp = 0;
-    bool timestampRead = false;
-
-    while (std::getline(energyData, line)) {
-        bool parseLineSuccess = false;
-
-        if (timestampRead == false) {
-            /* Read timestamp from boot (ms) */
-            if (sscanf(line.c_str(), "t=%" PRIu64, &timestamp) == 1) {
-                if (timestamp == 0 || timestamp == ULLONG_MAX) {
-                    ALOGW("Potentially wrong timestamp: %" PRIu64, timestamp);
-                }
-                timestampRead = true;
-                parseLineSuccess = true;
-            }
-
-        } else {
-            /* Read rail energy */
-            uint64_t energy = 0;
-            char railNameRaw[MAX_RAIL_NAME_LEN + 1];
-            if (sscanf(line.c_str(),
-                       "CH%*d(T=%*" PRIu64 ")[%" XSTR(MAX_RAIL_NAME_LEN) "[^]]], %" PRIu64,
-                       railNameRaw, &energy) == 2) {
-                std::string railName(railNameRaw);
-
-                /* If the count == 0, the rail may not be enabled */
-                /* The count cannot be > 1; mChannelIds is a map */
-                if (odpm.railsInfo.count(railName) == 1) {
-                    size_t index = odpm.railsInfo[railName].index;
-                    odpm.reading[index].index = index;
-                    odpm.reading[index].timestamp = timestamp;
-                    odpm.reading[index].energy = energy;
-                    if (odpm.reading[index].energy == ULLONG_MAX) {
-                        ALOGW("Potentially wrong energy value on rail: %s", railName.c_str());
-                    }
-                }
-                parseLineSuccess = true;
-            }
-        }
-
-        if (parseLineSuccess == false) {
-            ret = -1;
-            break;
-        }
-    }
-
-    return ret;
-}
-
-int RailDataProvider::parseIioEnergyNode(std::string devName) {
-    int ret;
-    std::string data;
-    std::string fileName = devName + "/energy_value";
-    if (!android::base::ReadFileToString(fileName, &data)) {
-        ALOGE("Error reading file: %s", fileName.c_str());
-        return -1;
-    }
-
-    ret = parseIioEnergyNodeString(data, mOdpm);
-    if (ret != 0) {
-        ALOGW("Unexpected format in file: %s", fileName.c_str());
-    }
-    return ret;
-}
-
-Status RailDataProvider::parseIioEnergyNodes() {
-    Status ret = Status::SUCCESS;
-    if (mOdpm.hwEnabled == false) {
-        return Status::NOT_SUPPORTED;
-    }
-
-    for (const auto &devicePath : mOdpm.devicePaths) {
-        if (parseIioEnergyNode(devicePath) < 0) {
-            ALOGE("Error in parsing power stats");
-            ret = Status::FILESYSTEM_ERROR;
-            break;
-        }
-    }
-    return ret;
-}
-
-RailDataProvider::RailDataProvider() {
-    findIioPowerMonitorNodes();
-    size_t numRails = parsePowerRails();
-    if (mOdpm.devicePaths.empty() || numRails == 0) {
-        mOdpm.hwEnabled = false;
-    } else {
-        mOdpm.hwEnabled = true;
-        mOdpm.reading.resize(numRails);
-    }
-}
-
-Return<void> RailDataProvider::getRailInfo(IPowerStats::getRailInfo_cb _hidl_cb) {
-    hidl_vec<RailInfo> rInfo;
-    Status ret = Status::SUCCESS;
-    size_t index;
-    std::lock_guard<std::mutex> _lock(mOdpm.mLock);
-    if (mOdpm.hwEnabled == false) {
-        ALOGI("getRailInfo not supported");
-        _hidl_cb(rInfo, Status::NOT_SUPPORTED);
-        return Void();
-    }
-    rInfo.resize(mOdpm.railsInfo.size());
-    for (const auto &railData : mOdpm.railsInfo) {
-        index = railData.second.index;
-        rInfo[index].railName = railData.first;
-        rInfo[index].subsysName = railData.second.subsysName;
-        rInfo[index].index = index;
-        rInfo[index].samplingRate = railData.second.samplingRate;
-    }
-    _hidl_cb(rInfo, ret);
-    return Void();
-}
-
-Return<void> RailDataProvider::getEnergyData(const hidl_vec<uint32_t> &railIndices,
-                                             IPowerStats::getEnergyData_cb _hidl_cb) {
-    hidl_vec<EnergyData> eVal;
-    std::lock_guard<std::mutex> _lock(mOdpm.mLock);
-    Status ret = parseIioEnergyNodes();
-
-    if (ret != Status::SUCCESS) {
-        ALOGE("Failed to getEnergyData");
-        _hidl_cb(eVal, ret);
-        return Void();
-    }
-
-    if (railIndices.size() == 0) {
-        eVal.resize(mOdpm.railsInfo.size());
-        memcpy(&eVal[0], &mOdpm.reading[0], mOdpm.reading.size() * sizeof(EnergyData));
-    } else {
-        eVal.resize(railIndices.size());
-        int i = 0;
-        for (const auto &railIndex : railIndices) {
-            if (railIndex >= mOdpm.reading.size()) {
-                ret = Status::INVALID_INPUT;
-                eVal.resize(0);
-                break;
-            }
-            memcpy(&eVal[i], &mOdpm.reading[railIndex], sizeof(EnergyData));
-            i++;
-        }
-    }
-    _hidl_cb(eVal, ret);
-    return Void();
-}
-
-Return<void> RailDataProvider::streamEnergyData(uint32_t timeMs, uint32_t samplingRate,
-                                                IPowerStats::streamEnergyData_cb _hidl_cb) {
-    std::lock_guard<std::mutex> _lock(mOdpm.mLock);
-    if (mOdpm.fmqSynchronized != nullptr) {
-        _hidl_cb(MessageQueueSync::Descriptor(), 0, 0, Status::INSUFFICIENT_RESOURCES);
-        return Void();
-    }
-    uint32_t sps = std::min(samplingRate, MAX_SAMPLING_RATE);
-    uint32_t numSamples = timeMs * sps / 1000;
-    mOdpm.fmqSynchronized.reset(new (std::nothrow) MessageQueueSync(MAX_QUEUE_SIZE, true));
-    if (mOdpm.fmqSynchronized == nullptr || mOdpm.fmqSynchronized->isValid() == false) {
-        mOdpm.fmqSynchronized = nullptr;
-        _hidl_cb(MessageQueueSync::Descriptor(), 0, 0, Status::INSUFFICIENT_RESOURCES);
-        return Void();
-    }
-    std::thread pollThread = std::thread([this, sps, numSamples]() {
-        uint64_t sleepTimeUs = 1000000 / sps;
-        uint32_t currSamples = 0;
-        while (currSamples < numSamples) {
-            mOdpm.mLock.lock();
-            if (parseIioEnergyNodes() == Status::SUCCESS) {
-                mOdpm.fmqSynchronized->writeBlocking(&mOdpm.reading[0], mOdpm.reading.size(),
-                                                     WRITE_TIMEOUT_NS);
-                mOdpm.mLock.unlock();
-                currSamples++;
-                if (usleep(sleepTimeUs) < 0) {
-                    ALOGW("Sleep interrupted");
-                    break;
-                }
-            } else {
-                mOdpm.mLock.unlock();
-                break;
-            }
-        }
-        mOdpm.mLock.lock();
-        mOdpm.fmqSynchronized = nullptr;
-        mOdpm.mLock.unlock();
-        return;
-    });
-    pollThread.detach();
-    _hidl_cb(*(mOdpm.fmqSynchronized)->getDesc(), numSamples, mOdpm.reading.size(),
-             Status::SUCCESS);
-    return Void();
-}
-
-}  // namespace powerstats
-}  // namespace pixel
-}  // namespace google
-}  // namespace hardware
-}  // namespace android