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Commit 808f7036 authored by Jin Qian's avatar Jin Qian
Browse files

storaged: add support for ufs health info 

Test: adb logcat -d -b events | grep storaged_emmc_info
Bug: 36228467
Merged-In: I519fe2b8a99c1c31f1fe720bd671904d1ab609bb
Change-Id: I519fe2b8a99c1c31f1fe720bd671904d1ab609bb
parent 81970934

storaged/include/storaged_info.h

+8 −0
Original line number Diff line number Diff line
@@ -52,6 +52,14 @@ public: 
    bool report_debugfs();

};



class ufs_info_t : public storage_info_t {

private:

    const string health_file = "/sys/devices/soc/624000.ufshc/health";

public:

    virtual ~ufs_info_t() {}

    bool report();

};



void report_storage_health();



#endif /* _STORAGED_INFO_H_ */

storaged/storaged_info.cpp

+52 −1
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <android-base/file.h>

#include <android-base/parseint.h>

#include <android-base/logging.h>

#include <android-base/strings.h>

#include <log/log_event_list.h>



#include "storaged.h"
@@ -32,7 +33,10 @@ using namespace android::base; 
void report_storage_health()

{

    emmc_info_t mmc;

    ufs_info_t ufs;



    mmc.report();

    ufs.report();

}



void storage_info_t::publish()
@@ -131,3 +135,50 @@ bool emmc_info_t::report_debugfs() 


    return true;

}



bool ufs_info_t::report()

{

    string buffer;

    if (!ReadFileToString(health_file, &buffer)) {

        return false;

    }



    vector<string> lines = Split(buffer, "\n");

    if (lines.empty()) {

        return false;

    }



    char rev[8];

    if (sscanf(lines[0].c_str(), "ufs version: 0x%7s\n", rev) < 1) {

        return false;

    }



    version = "ufs " + string(rev);



    for (size_t i = 1; i < lines.size(); i++) {

        char token[32];

        uint16_t val;

        int ret;

        if ((ret = sscanf(lines[i].c_str(),

                   "Health Descriptor[Byte offset 0x%*d]: %31s = 0x%hx",

                   token, &val)) < 2) {

            continue;

        }



        if (string(token) == "bPreEOLInfo") {

            eol = val;

        } else if (string(token) == "bDeviceLifeTimeEstA") {

            lifetime_a = val;

        } else if (string(token) == "bDeviceLifeTimeEstB") {

            lifetime_b = val;

        }

    }



    if (eol == 0 || (lifetime_a == 0 && lifetime_b == 0)) {

        return false;

    }



    publish();

    return true;

}