path: root/dumpstate/DumpstateDevice.cpp

/*
 * Copyright 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.
 */

#define LOG_TAG "dumpstate"

#include "DumpstateDevice.h"

#include <android-base/properties.h>
#include <android-base/unique_fd.h>
#include <cutils/properties.h>
#include <log/log.h>
#include <string.h>

#define _SVID_SOURCE
#include <dirent.h>

#include "DumpstateUtil.h"

#define MODEM_LOG_PREFIX_PROPERTY "ro.radio.log_prefix"
#define MODEM_LOG_LOC_PROPERTY "ro.radio.log_loc"
#define MODEM_LOGGING_SWITCH "persist.radio.smlog_switch"

#define DIAG_MDLOG_PERSIST_PROPERTY "persist.vendor.sys.modem.diag.mdlog"
#define DIAG_MDLOG_PROPERTY "vendor.sys.modem.diag.mdlog"
#define DIAG_MDLOG_STATUS_PROPERTY "vendor.sys.modem.diag.mdlog_on"

#define DIAG_MDLOG_NUMBER_BUGREPORT "persist.vendor.sys.modem.diag.mdlog_br_num"

#define EMMC_BOOTDEVICE "ro.boot.bootdevice"

#define TCPDUMP_NUMBER_BUGREPORT "persist.vendor.tcpdump.log.br_num"
#define TCPDUMP_PERSIST_PROPERTY "persist.vendor.tcpdump.log.alwayson"

#define MODEM_EFS_DUMP_PROPERTY "vendor.sys.modem.diag.efsdump"

using android::os::dumpstate::CommandOptions;
using android::os::dumpstate::DumpFileToFd;
using android::os::dumpstate::PropertiesHelper;
using android::os::dumpstate::RunCommandToFd;

namespace android {
namespace hardware {
namespace dumpstate {
namespace V1_0 {
namespace implementation {

#define DIAG_LOG_PREFIX "diag_log_"
#define TCPDUMP_LOG_PREFIX "tcpdump"
#define EXTENDED_LOG_PREFIX "extended_log_"

void DumpstateDevice::dumpLogs(int fd, std::string srcDir, std::string destDir,
                               int maxFileNum, const char *logPrefix) {
    struct dirent **dirent_list = NULL;
    int num_entries = scandir(srcDir.c_str(),
                              &dirent_list,
                              0,
                              (int (*)(const struct dirent **, const struct dirent **)) alphasort);
    if (!dirent_list) {
        return;
    } else if (num_entries <= 0) {
        return;
    }

    int copiedFiles = 0;

    for (int i = num_entries - 1; i >= 0; i--) {
        ALOGD("Found %s\n", dirent_list[i]->d_name);

        if (0 != strncmp(dirent_list[i]->d_name, logPrefix, strlen(logPrefix))) {
            continue;
        }

        if ((copiedFiles >= maxFileNum) && (maxFileNum != -1)) {
            ALOGD("Skipped %s\n", dirent_list[i]->d_name);
            continue;
        }

        copiedFiles++;

        CommandOptions options = CommandOptions::WithTimeout(120).Build();
        std::string srcLogFile = srcDir + "/" + dirent_list[i]->d_name;
        std::string destLogFile = destDir + "/" + dirent_list[i]->d_name;

        std::string copyCmd = "/vendor/bin/cp " + srcLogFile + " " + destLogFile;

        ALOGD("Copying %s to %s\n", srcLogFile.c_str(), destLogFile.c_str());
        RunCommandToFd(fd, "CP DIAG LOGS", { "/vendor/bin/sh", "-c", copyCmd.c_str() }, options);
    }

    while (num_entries--) {
        free(dirent_list[num_entries]);
    }

    free(dirent_list);
}

void DumpstateDevice::dumpModem(int fd, int fdModem)
{
    std::string modemLogDir = android::base::GetProperty(MODEM_LOG_LOC_PROPERTY, "");
    if (modemLogDir.empty()) {
        ALOGD("No modem log place is set\n");
        return;
    }

    std::string filePrefix = android::base::GetProperty(MODEM_LOG_PREFIX_PROPERTY, "");

    if (filePrefix.empty()) {
        ALOGD("Modem log prefix is not set\n");
        return;
    }

    const std::string modemLogCombined = modemLogDir + "/" + filePrefix + "all.tar";
    const std::string modemLogAllDir = modemLogDir + "/modem_log";

    RunCommandToFd(fd, "MKDIR MODEM LOG", {"/vendor/bin/mkdir", "-p", modemLogAllDir.c_str()}, CommandOptions::WithTimeout(2).Build());

    if (!PropertiesHelper::IsUserBuild()) {
        RunCommandToFd(fd, "MODEM RFS INFO", {"/vendor/bin/find /data/vendor/rfs/mpss/OEMFI/"}, CommandOptions::WithTimeout(2).Build());
        RunCommandToFd(fd, "MODEM DIAG SYSTEM PROPERTIES", {"/vendor/bin/getprop | grep vendor.sys.modem.diag"}, CommandOptions::WithTimeout(2).Build());

        android::base::SetProperty(MODEM_EFS_DUMP_PROPERTY, "true");

        const std::string diagLogDir = "/data/vendor/radio/diag_logs/logs";
        const std::string tcpdumpLogDir = "/data/vendor/tcpdump_logger/logs";
        const std::string extendedLogDir = "/data/vendor/radio/extended_logs";
        const std::vector <std::string> rilAndNetmgrLogs
            {
              "/data/vendor/radio/haldebug_ril0",
              "/data/vendor/radio/haldebug_ril1",
              "/data/vendor/radio/ril_log0",
              "/data/vendor/radio/ril_log0_old",
              "/data/vendor/radio/ril_log1",
              "/data/vendor/radio/ril_log1_old",
              "/data/vendor/radio/qmi_fw_log",
              "/data/vendor/radio/qmi_fw_log_old",
              "/data/vendor/radio/imsdatadaemon_log",
              "/data/vendor/radio/imsdatadaemon_log_old",
              "/data/vendor/netmgr/netmgr_log",
              "/data/vendor/netmgr/netmgr_log_old",
              "/data/vendor/radio/omadm_logs.txt",
              "/data/vendor/radio/power_anomaly_data.txt",
              "/data/vendor/radio/diag_logs/diag_trace.txt",
              "/data/vendor/radio/diag_logs/diag_trace_old.txt",
              "/data/vendor/radio/diag_logs/logs/diag_poweron_log.qmdl",
              "/data/vendor/radio/metrics_data",
              "/data/vendor/ssrlog/ssr_log.txt",
              "/data/vendor/ssrlog/ssr_log_old.txt",
              "/data/vendor/rfs/mpss/modem_efs"
            };

        bool smlogEnabled = android::base::GetBoolProperty(MODEM_LOGGING_SWITCH, false) && !access("/vendor/bin/smlog_dump", X_OK);
        bool diagLogEnabled = android::base::GetBoolProperty(DIAG_MDLOG_PERSIST_PROPERTY, false);
        bool tcpdumpEnabled = android::base::GetBoolProperty(TCPDUMP_PERSIST_PROPERTY, false);

        if (smlogEnabled) {
            RunCommandToFd(fd, "SMLOG DUMP", {"smlog_dump", "-d", "-o", modemLogAllDir.c_str()}, CommandOptions::WithTimeout(10).Build());
        } else if (diagLogEnabled) {
            bool diagLogStarted = android::base::GetBoolProperty(DIAG_MDLOG_STATUS_PROPERTY, false);

            if (diagLogStarted) {
                android::base::SetProperty(DIAG_MDLOG_PROPERTY, "false");
                ALOGD("Stopping diag_mdlog...\n");
            } else {
                ALOGD("diag_mdlog is not running\n");
            }

            for (int i = 0; i < 30; i++) {
                if (!android::base::GetBoolProperty(DIAG_MDLOG_STATUS_PROPERTY, false)) {
                    ALOGD("diag_mdlog exited\n");
                    sleep(1);
                    break;
                }

                sleep(1);
            }

            dumpLogs(fd, diagLogDir, modemLogAllDir, android::base::GetIntProperty(DIAG_MDLOG_NUMBER_BUGREPORT, 100), DIAG_LOG_PREFIX);

            if (diagLogStarted) {
                ALOGD("Restarting diag_mdlog...\n");
                android::base::SetProperty(DIAG_MDLOG_PROPERTY, "true");
            }
        }

        if (tcpdumpEnabled) {
            dumpLogs(fd, tcpdumpLogDir, modemLogAllDir, android::base::GetIntProperty(TCPDUMP_NUMBER_BUGREPORT, 5), TCPDUMP_LOG_PREFIX);
        }

        for (const auto& logFile : rilAndNetmgrLogs) {
            RunCommandToFd(fd, "CP MODEM LOG", {"/vendor/bin/cp", logFile.c_str(), modemLogAllDir.c_str()}, CommandOptions::WithTimeout(2).Build());
        }

        dumpLogs(fd, extendedLogDir, modemLogAllDir, 100, EXTENDED_LOG_PREFIX);

        android::base::SetProperty(MODEM_EFS_DUMP_PROPERTY, "false");
    }

    RunCommandToFd(fd, "TAR LOG", {"/vendor/bin/tar", "cvf", modemLogCombined.c_str(), "-C", modemLogAllDir.c_str(), "."}, CommandOptions::WithTimeout(120).Build());
    RunCommandToFd(fd, "CHG PERM", {"/vendor/bin/chmod", "a+w", modemLogCombined.c_str()}, CommandOptions::WithTimeout(2).Build());

            std::vector<uint8_t> buffer(65536);
            android::base::unique_fd fdLog(TEMP_FAILURE_RETRY(open(modemLogCombined.c_str(), O_RDONLY | O_CLOEXEC | O_NONBLOCK)));

            if (fdLog >= 0) {
                while (1) {
                    ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fdLog, buffer.data(), buffer.size()));

                    if (bytes_read == 0) {
                        break;
                    } else if (bytes_read < 0) {
                        ALOGD("read(%s): %s\n", modemLogCombined.c_str(), strerror(errno));
                        break;
                    }

                    ssize_t result = TEMP_FAILURE_RETRY(write(fdModem, buffer.data(), bytes_read));

                    if (result != bytes_read) {
                        ALOGD("Failed to write %ld bytes, actually written: %ld", bytes_read, result);
                        break;
                    }
                }
            }

    RunCommandToFd(fd, "RM MODEM DIR", { "/vendor/bin/rm", "-r", modemLogAllDir.c_str()}, CommandOptions::WithTimeout(2).Build());
    RunCommandToFd(fd, "RM LOG", { "/vendor/bin/rm", modemLogCombined.c_str()}, CommandOptions::WithTimeout(2).Build());
}

static void DumpIPCTRT(int fd) {
    DumpFileToFd(fd, "MPSS IPCRTR Log", "/sys/kernel/debug/ipc_logging/mpss_IPCRTR/log");
    DumpFileToFd(fd, "Local IPCRTR Log", "/sys/kernel/debug/ipc_logging/local_IPCRTR/log");
}

static void DumpTouch(int fd) {
    const std::string touch_sysfs_path = "/sys/devices/platform/soc/a84000.i2c/i2c-2/2-0020/input/input2/";
    if (!access(touch_sysfs_path.c_str(), R_OK)) {
        DumpFileToFd(fd, "Synaptics touch firmware version",
                     touch_sysfs_path + "buildid");
        DumpFileToFd(fd, "Synaptics touch config version",
                     touch_sysfs_path + "config");
        RunCommandToFd(fd, "keep touch stay awake",
                       {"/vendor/bin/sh", "-c",
                        "echo 02 >" + touch_sysfs_path + "suspend"});
        DumpFileToFd(fd, "Synaptics touch noise information",
                     touch_sysfs_path + "noise_state");
        for (int i = 0; i < 5; i++) {
            RunCommandToFd(fd, "Touch Cm Raw data",
                           {"/vendor/bin/sh", "-c",
                            "echo 20 >" + touch_sysfs_path + "read_report"
                            " && cat " + touch_sysfs_path + "read_report"});
            RunCommandToFd(fd, "Touch Cm Jitter",
                           {"/vendor/bin/sh", "-c",
                            "echo 02 >" + touch_sysfs_path + "read_report"
                            " && cat " + touch_sysfs_path + "read_report"});
            RunCommandToFd(fd, "Touch Cs Raw data",
                           {"/vendor/bin/sh", "-c",
                            "echo 63 >" + touch_sysfs_path + "read_report"
                            " && cat " + touch_sysfs_path + "read_report"});
            RunCommandToFd(fd, "Touch Cs Jitter",
                           {"/vendor/bin/sh", "-c",
                            "echo 59 >" + touch_sysfs_path + "read_report"
                            " && cat " + touch_sysfs_path + "read_report"});
        }
        RunCommandToFd(fd, "keep touch stay awake disable",
                       {"/vendor/bin/sh", "-c",
                        "echo 00 >" + touch_sysfs_path + "suspend"});
    }
}

static void DumpSensorLog(int fd) {
    const std::string logPath = "/data/vendor/sensors/log/sensor_log.txt";
    const std::string lastlogPath = "/data/vendor/sensors/log/sensor_lastlog.txt";

    if (!access(logPath.c_str(), R_OK)) {
        DumpFileToFd(fd, "sensor log", logPath);
    }
    if (!access(lastlogPath.c_str(), R_OK)) {
        DumpFileToFd(fd, "sensor lastlog", lastlogPath);
    }
}

static void DumpF2FS(int fd) {
    DumpFileToFd(fd, "F2FS", "/sys/kernel/debug/f2fs/status");
    DumpFileToFd(fd, "F2FS - fragmentation", "/proc/fs/f2fs/dm-6/segment_info");
}

static void DumpPower(int fd) {
    RunCommandToFd(fd, "Power Stats Times", {"/vendor/bin/sh", "-c",
                   "echo -n \"Boot: \" && /vendor/bin/uptime -s &&"
                   "echo -n \"Now: \" && date"});
    DumpFileToFd(fd, "Sleep Stats", "/sys/power/system_sleep/stats");
    DumpFileToFd(fd, "Power Management Stats", "/sys/power/rpmh_stats/master_stats");
    DumpFileToFd(fd, "WLAN Power Stats", "/d/wlan0/power_stats");
}

static void DumpeMMC(int fd) {
    DumpFileToFd(fd, "eMMC model", "/sys/block/mmcblk0/device/name");
    DumpFileToFd(fd, "eMMC prv", "/sys/block/mmcblk0/device/prv");
    DumpFileToFd(fd, "eMMC fwrev", "/sys/block/mmcblk0/device/fwrev");
    DumpFileToFd(fd, "eMMC size", "/sys/block/mmcblk0/size");
    DumpFileToFd(fd, "eMMC ext_csd", "/sys/kernel/debug/mmc0/mmc0:0001/ext_csd");
    DumpFileToFd(fd, "eMMC err_stats", "/sys/kernel/debug/mmc0/err_stats");
    DumpFileToFd(fd, "eMMC ring_buffer", "/sys/kernel/debug/mmc0/ring_buffer");
    DumpFileToFd(fd, "eMMC host status", "/sys/kernel/debug/mmc0/show_host");
    DumpFileToFd(fd, "eMMC io_stats", "/sys/kernel/debug/mmc0/io_stats");
    DumpFileToFd(fd, "eMMC req_stats", "/sys/kernel/debug/mmc0/req_stats");

    std::string bootdev = android::base::GetProperty(EMMC_BOOTDEVICE, "");
    if (!bootdev.empty()) {
        DumpFileToFd(fd, "eMMC pre_eol_info", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/mmc0:0001/pre_eol_info");
        DumpFileToFd(fd, "eMMC life_time", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/mmc0:0001/life_time");
        DumpFileToFd(fd, "eMMC Slow IO Read", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_read_cnt");
        DumpFileToFd(fd, "eMMC Slow IO Write", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_write_cnt");
        DumpFileToFd(fd, "eMMC Slow IO Urgent Read", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_urgent_read_cnt");
        DumpFileToFd(fd, "eMMC Slow IO Urgent Write", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_urgent_write_cnt");
        DumpFileToFd(fd, "eMMC Slow IO Discard", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_discard_cnt");
        DumpFileToFd(fd, "eMMC Slow IO Flush", "/sys/devices/platform/soc/" + bootdev + "/mmc_host/mmc0/slowio_flush_cnt");
    }
}

// Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
    if (handle == nullptr || 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();
    }

    RunCommandToFd(fd, "Notify modem", {"/vendor/bin/modem_svc", "-s"}, CommandOptions::WithTimeout(1).Build());
    RunCommandToFd(fd, "VENDOR PROPERTIES", {"/vendor/bin/getprop"});
    DumpFileToFd(fd, "SoC serial number", "/sys/devices/soc0/serial_number");
    DumpFileToFd(fd, "CPU present", "/sys/devices/system/cpu/present");
    DumpFileToFd(fd, "CPU online", "/sys/devices/system/cpu/online");

    if (!PropertiesHelper::IsUserBuild()) {
        RunCommandToFd(fd, "Performance Stats History", {"/vendor/bin/perfstatsd", "-d"});
    }

    DumpF2FS(fd);
    DumpeMMC(fd);

    DumpSensorLog(fd);

    DumpFileToFd(fd, "INTERRUPTS", "/proc/interrupts");

    DumpPower(fd);

    DumpFileToFd(fd, "LL-Stats", "/d/wlan0/ll_stats");
    DumpFileToFd(fd, "WLAN Connect Info", "/d/wlan0/connect_info");
    DumpFileToFd(fd, "WLAN Offload Info", "/d/wlan0/offload_info");
    DumpFileToFd(fd, "WLAN Roaming Stats", "/d/wlan0/roam_stats");
    DumpFileToFd(fd, "ICNSS Stats", "/d/icnss/stats");
    DumpFileToFd(fd, "SMD Log", "/d/ipc_logging/smd/log");
    RunCommandToFd(fd, "ION HEAPS", {"/vendor/bin/sh", "-c", "for d in $(ls -d /d/ion/*); do for f in $(ls $d); do echo --- $d/$f; cat $d/$f; done; done"});
    DumpFileToFd(fd, "dmabuf info", "/d/dma_buf/bufinfo");
    RunCommandToFd(fd, "Temperatures", {"/vendor/bin/sh", "-c", "for f in /sys/class/thermal/thermal* ; do type=`cat $f/type` ; temp=`cat $f/temp` ; echo \"$type: $temp\" ; done"});
    RunCommandToFd(fd, "Cooling Device Current State", {"/vendor/bin/sh", "-c", "for f in /sys/class/thermal/cooling* ; do type=`cat $f/type` ; temp=`cat $f/cur_state` ; echo \"$type: $temp\" ; done"});
    RunCommandToFd(
        fd, "LMH info",
        {"/vendor/bin/sh", "-c",
         "for f in /sys/bus/platform/drivers/msm_lmh_dcvs/*qcom,limits-dcvs@*/lmh_freq_limit; do "
         "state=`cat $f` ; echo \"$f: $state\" ; done"});
    RunCommandToFd(fd, "CPU time-in-state", {"/vendor/bin/sh", "-c", "for cpu in /sys/devices/system/cpu/cpu*; do f=$cpu/cpufreq/stats/time_in_state; if [ ! -f $f ]; then continue; fi; echo $f:; cat $f; done"});
    RunCommandToFd(fd, "CPU cpuidle", {"/vendor/bin/sh", "-c", "for cpu in /sys/devices/system/cpu/cpu*; do for d in $cpu/cpuidle/state*; do if [ ! -d $d ]; then continue; fi; echo \"$d: `cat $d/name` `cat $d/desc` `cat $d/time` `cat $d/usage`\"; done; done"});
    RunCommandToFd(fd, "Easel debug info", {"/vendor/bin/sh", "-c", "for f in `ls /sys/devices/platform/soc/a88000.i2c/i2c-0/0-0066/@(*curr|temperature|vbat|total_power)`; do echo \"$f: `cat $f`\" ; done; file=/sys/devices/virtual/misc/mnh_sm/state; echo \"$file: `cat $file`\""});
    DumpFileToFd(fd, "MDP xlogs", "/data/vendor/display/mdp_xlog");
    DumpFileToFd(fd, "TCPM logs", "/d/tcpm/usbpd0");
    DumpFileToFd(fd, "PD Engine", "/d/logbuffer/usbpd");
    DumpFileToFd(fd, "smb-lib", "/d/logbuffer/smblib");
    DumpFileToFd(fd, "DWC3 logs", "/d/ipc_logging/a600000.dwc3/log");
    DumpFileToFd(fd, "ipc-local-ports", "/d/msm_ipc_router/dump_local_ports");
    DumpIPCTRT(fd);
    DumpTouch(fd);
    RunCommandToFd(fd, "USB Device Descriptors", {"/vendor/bin/sh", "-c", "cd /sys/bus/usb/devices/1-1 && cat product && cat bcdDevice; cat descriptors | od -t x1 -w16 -N96"});
    // Timeout after 3s
    RunCommandToFd(fd, "QSEE logs", {"/vendor/bin/sh", "-c", "/vendor/bin/timeout 3 cat /d/tzdbg/qsee_log"});
    RunCommandToFd(fd, "Power supply properties", {"/vendor/bin/sh", "-c", "for f in `ls /sys/class/power_supply/*/uevent` ; do echo \"------ $f\\n`cat $f`\\n\" ; done"});
    RunCommandToFd(fd, "PMIC Votables", {"/vendor/bin/sh", "-c", "cat /sys/kernel/debug/pmic-votable/*/status"});
    DumpFileToFd(fd, "Battery cycle count", "/sys/class/power_supply/bms/device/cycle_counts_bins");
    DumpFileToFd(fd, "Maxim FG registers", "/d/regmap/4-0036/registers");
    DumpFileToFd(fd, "Maxim FG NV RAM", "/d/regmap/4-000b/registers");
    DumpFileToFd(fd, "PM670 PON registers",
                 "/d/c440000.qcom,spmi:qcom,pm660@0:qcom,power-on@800/pmic_pon_dump");
    DumpFileToFd(fd, "PM670A PON registers",
                 "/d/c440000.qcom,spmi:qcom,pm660l@2:qcom,power-on@800/pmic_pon_dump");
    RunCommandToFd(fd, "QCOM FG SRAM", {"/vendor/bin/sh", "-c", "echo 0 > /d/fg/sram/address ; echo 500 > /d/fg/sram/count ; cat /d/fg/sram/data"});

    RunCommandToFd(fd, "eSIM Status", {"/vendor/bin/sh", "-c", "od -t x1 /sys/firmware/devicetree/base/chosen/cdt/cdb2/esim"});
    DumpFileToFd(fd, "Modem Stat", "/data/vendor/modem_stat/debug.txt");
    DumpFileToFd(fd, "Pixel trace", "/d/tracing/instances/pixel-trace/trace");

    if (handle->numFds < 2) {
        ALOGE("no FD for modem\n");
    } else {
        int fdModem = handle->data[1];
        dumpModem(fd, fdModem);
    }

    // Dump various events in WiFi data path
    DumpFileToFd(fd, "WLAN DP Trace", "/d/wlan/dpt_stats/dump_set_dpt_logs");

    // Keep this at the end as very long on not for humans
    DumpFileToFd(fd, "WLAN FW Log Symbol Table", "/vendor/firmware/Data.msc");

    return Void();
}

}  // namespace implementation
}  // namespace V1_0
}  // namespace dumpstate
}  // namespace hardware
}  // namespace android