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Subject: Re: AJB wake up in car application
From: Brian Wolven (brian.wolven_at_verizon.net)
Date: 2004-04-21


Matthias.Klumpp_at_gmx.de wrote:
> Hi all,
>
> as there was unfortunately no further answer to my last e-mail, I was just
> testing the daily build 21.04.2004 to find out if that "car adapter mode
> wake-up" feature maybe is already included.
>
> At least in the menu I was finding nothing.
>
> I would apreciate any information about the progress on that feature or some
> help in case it's included but I'm handling it the wrong way.

I'm currently running the April 13 daily build. If I do F1->General
Settings->System I see a "car Adapter Mode" as the next-to-last entry on
that screen. This code is also in CVS ATM, so it sure seems like it
ought to be there and working:

void set_car_adapter_mode(bool setting)
{
     car_adapter_mode_enabled = setting;
}

static void car_adapter_mode_processing(void)
{
     static bool charger_power_is_on = false;
     static bool waiting_to_resume_play = false;
     static long play_resume_time;

     if (car_adapter_mode_enabled) {

         if (waiting_to_resume_play) {
             if (TIME_AFTER(current_tick, play_resume_time)) {
                 if (mpeg_status() & MPEG_STATUS_PAUSE) {
                     mpeg_resume();
                 }
                 waiting_to_resume_play = false;
             }
         }
         else {
             if (charger_power_is_on) {

                 /* if external power was turned off */
                 if (!charger_inserted()) {

                     charger_power_is_on = false;

                     /* if playing */
                     if ((mpeg_status() & MPEG_STATUS_PLAY) &&
                         !(mpeg_status() & MPEG_STATUS_PAUSE)) {
                         mpeg_pause();
                     }
                 }
             }
             else {
                 /* if external power was turned on */
                 if (charger_inserted()) {

                     charger_power_is_on = true;

                  /* if paused */
                     if (mpeg_status() & MPEG_STATUS_PAUSE) {
                  /* delay resume a bit while the engine is cranking */
                         play_resume_time = current_tick + HZ*5;
                         waiting_to_resume_play = true;
                     }
                 }
             }
         }
     }
}

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