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Commit b0d8610b authored by Christopher N. Hesse's avatar Christopher N. Hesse
Browse files

modemloader: Add support for recent devices 

 * Try to read the hardware revision from the
   bootloader before parsing /proc/cpuinfo
 * Set more properties to catch all recent device
   needs as well
 * Introduce a property to let other services (cbd)
   know they can start

Change-Id: I50d8ec37921ec2559bdd7fe852d830f10fe1c12e
parent b1d4bcba

modemloader/modemloader.c

+22 −6
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2008 The Android Open Source Project

 * Copyright (C) 2015 Christopher N. Hesse <raymanfx@gmail.com>

 * Copyright (C) 2015-2017 Christopher N. Hesse <raymanfx@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.
@@ -84,12 +84,28 @@ done: 


int main(void)

{

    unsigned int revision = 0;

    char ro_revision[PROP_VALUE_MAX];

    unsigned int revision;

    char hardware_revision[PROP_VALUE_MAX];

    const char *properties[] = {"hw.revision", "ro.cbd.dt_revision", "ril.cbd.dt_revision"};



    // try to read the revision from the kernel cmdline

    revision = property_get_int32("ro.boot.hw_rev", 0);



    // if the property was not exported, try to parse /proc/cpuinfo

    if (revision == 0) {

        parse_hardware_revision(&revision);

    snprintf(ro_revision, PROP_VALUE_MAX, "%d", revision);

    property_set("hw.revision", ro_revision);

    }



    snprintf(hardware_revision, PROP_VALUE_MAX, "%d", revision);



    // set all the properties

    const int array_length = sizeof(properties) / sizeof(properties[0]);

    for (int i = 0; i < array_length; i++) {

        property_set(properties[i], hardware_revision);

    }



    // indicate that we are done

    property_set("ro.modemloader.done", "1");



    return 0;

}