off charging mode flow

/system/core/init/init.cpp

.....

.....

.....

int main(int argc, char** argv) {

.....

.....

.....

    // Don't mount filesystems or start core system services in charger mode.

    std::string bootmode = GetProperty("ro.bootmode", "");

    if (bootmode == "charger") {

        am.QueueEventTrigger("charger");

    } else {

        am.QueueEventTrigger("late-init");

    }

.....

.....

.....

/system/core/rootdir/init.rc

.....

.....

.....

on charger

    class_start charger

.....

.....

.....

/system/core/healthd/Android.mk

.....

.....

.....

LOCAL_SRC_FILES := \

    charger.cpp \

LOCAL_MODULE := charger

.....

.....

.....

/system/core/healthd/charger.cpp

int healthd_charger_main(int argc, char** argv) {

    int ch;

    healthd_mode_ops = &charger_ops;

    while ((ch = getopt(argc, argv, "cr")) != -1) {

        switch (ch) {

            case 'c':

                // -c is now a noop

                break;

            case 'r':

                // force nops for recovery

                healthd_mode_ops = &healthd_nops;

                break;

            case '?':

            default:

                KLOG_ERROR(LOG_TAG, "Unrecognized charger option: %c\n",

                        optopt);

                exit(1);

        }

    }

    return healthd_main();

}

int main(int argc, char** argv) {

    return healthd_charger_main(argc, argv);

}

[To Be Continued]

巴特西

off charging mode flow

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