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auouymous is offline auouymous
2011-01-26 , 03:07
Posts: 875 | Thanked: 918 times | Joined on Sep 2010
#281
New test binary up.
  • cpu frequency is polled before services so value isn't always 400mhz
  • cpu freqency is polled every 10 seconds instead of every 30 like the governor
  • ALS is no longer polled while screen is off
 

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tso is offline tso
2011-01-26 , 05:00
Posts: 4,783 | Thanked: 1,253 times | Joined on Aug 2007 @ norway
#282
Nice. Started out at 400, waited a bit and it dropped to 165, tapped screen and it jumped to 400 again. Seems to work ok.
 
auouymous is offline auouymous
2011-01-28 , 19:14
Posts: 875 | Thanked: 918 times | Joined on Sep 2010
#283
Do any of you happen to know how SystemUI tells MCE that the device is locked or unlocked with a code?

MCE sends out a signal when the lock state changes but I can't figure out how SystemUI tells MCE that the system is locked or unlocked. I also know that powerlaunch can lock/unlock with a code but I'm unable to find how it does this.
 
maacruz is offline maacruz
2011-01-28 , 20:32
Posts: 1,101 | Thanked: 1,185 times | Joined on Aug 2008 @ Spain
#284
Iit is dsme task to read/write the lock code in the CAL area.
Unfortunately, it is closed source "added value" (ha! negative value).
Fortunately, it has been opensourced in good part in frematle: http://repository.maemo.org/pool/fremantle/free/d/dsme/
Unfortunately, I can't find anywhere some header files (protocol.h, message.h...) referenced there.
But those seem to have been opensourced for meego, not the same but may be similar enough: http://meego.gitorious.org/meego-mid...r/include/dsme
And finally, it has been reverse engineered in powerlaunch. Look at powered/dsme.c ( https://garage.maemo.org/plugins/scm...ch&view=markup ), You could copy-paste the code from there.
 
auouymous is offline auouymous
2011-01-28 , 21:47
Posts: 875 | Thanked: 918 times | Joined on Sep 2010
#285
I already know about powerlaunch's dsme.c file and how to read the lock code. What I don't know how to do is tell MCE (or whatever) that the device should be locked or unlocked. Powerlaunch has nothing in dsme.c that would set the lock/unlock state so I assume SystemUI sends a signal/method or something else to MCE and then MCE sends out a system wide signal.
 
maacruz is offline maacruz
2011-01-28 , 23:36
Posts: 1,101 | Thanked: 1,185 times | Joined on Aug 2008 @ Spain
#286
The following command will lock the device
Code:
dbus-send --print-reply --system --type=method_call --dest=com.nokia.system_ui /com/nokia/system_ui/request com.nokia.system_ui.request.devlock_open string:'com.nokia.mce' string:'/com/nokia/mce/request' string:'com.nokia.mce.request' string:'devlock_callback' uint32:3
That message is sent by mce after pressing lock.
----
EDIT: If you stop mce and run that command, the device will lock, but will be unable to validate the unlock code.
----
And, after playing a bit with dbus-monitor:
Code:
dbus-send --system --type=method_call --dest=com.nokia.mce /com/nokia/mce/request com.nokia.mce.request.devlock_callback int32:2
That message is sent by system_ui to unlock the device.
I also discovered by experimentation that int32:3 will also lock the device.
Powerlaunch implements mce in powered/mce.c, it seems the callbacks haven't been implemented.
Last edited by maacruz; 2011-01-29 at 00:03.
 

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jstokes is offline jstokes
2011-01-29 , 00:03
Posts: 235 | Thanked: 339 times | Joined on Nov 2010
#287
Originally Posted by auouymous View Post
I already know about powerlaunch's dsme.c file and how to read the lock code. What I don't know how to do is tell MCE (or whatever) that the device should be locked or unlocked. Powerlaunch has nothing in dsme.c that would set the lock/unlock state so I assume SystemUI sends a signal/method or something else to MCE and then MCE sends out a system wide signal.
Follow the steps on https://garage.maemo.org/plugins/wik...id=1106&type=g to allow you to spy on methods. Afterwards you can see how they call each other with callbacks etc. to request things from one another. ("Hi, MCE, I'm requesting a lock. OK. SystemUI, can you show your dialog? Sure." Etc.)

The validation method sends two salted strings; look for the Chinook leaked MCE source or see if the MCE source in the MeeGo Gitorious repository has the information
Last edited by jstokes; 2011-01-29 at 00:05.
 
auouymous is offline auouymous
2011-01-29 , 00:10
Posts: 875 | Thanked: 918 times | Joined on Sep 2010
#288
Sending 2 causes MCE to send the unlocked signal and puts the device in unlocked state but sending 3 only changes state to locked and MCE doesn't send out a signal. If SystemUI is running then MCE will send out two locked signals when 3 is sent to MCE.

This will work and ASUI can lock and unlock the device but any other app listening for the lock signal from MCE won't receive it.
 
maacruz is offline maacruz
2011-01-29 , 00:41
Posts: 1,101 | Thanked: 1,185 times | Joined on Aug 2008 @ Spain
#289
The complete chitchat between systemui and mce when locking and unlocking the device: press power key, select lock, input unlock code.
Code:
signal sender=org.freedesktop.DBus -> dest=:1.75 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired
   string ":1.75"
method call sender=:1.71 -> dest=com.nokia.system_ui path=/com/nokia/system_ui/request; interface=com.nokia.system_ui.request; member=powerkeymenu_open
   string "com.nokia.mce"
   string "/com/nokia/mce/request"
   string "com.nokia.mce.request"
   string "powerkey_callback"
   uint32 1
method call sender=:1.69 -> dest=com.nokia.mce path=/com/nokia/mce/request; interface=com.nokia.mce.request; member=powerkey_callback
   int32 4
method call sender=:1.71 -> dest=com.nokia.system_ui path=/com/nokia/system_ui/request; interface=com.nokia.system_ui.request; member=powerkeymenu_close
   string "com.nokia.mce"
   string "/com/nokia/mce/request"
   string "com.nokia.mce.request"
   string "powerkey_callback"
   uint32 1
method call sender=:1.71 -> dest=com.nokia.system_ui path=/com/nokia/system_ui/request; interface=com.nokia.system_ui.request; member=devlock_open
   string "com.nokia.mce"
   string "/com/nokia/mce/request"
   string "com.nokia.mce.request"
   string "devlock_callback"
   uint32 3
method call sender=:1.69 -> dest=com.nokia.mce path=/com/nokia/mce/request; interface=com.nokia.mce.request; member=powerkey_callback
   int32 -4
method call sender=:1.71 -> dest=com.nokia.system_ui path=/com/nokia/system_ui/request; interface=com.nokia.system_ui.request; member=powerkeymenu_close
   string "com.nokia.mce"
   string "/com/nokia/mce/request"
   string "com.nokia.mce.request"
   string "powerkey_callback"
   uint32 1
signal sender=:1.71 -> dest=(null destination) path=/com/nokia/mce/signal; interface=com.nokia.mce.signal; member=devicelock_mode_ind
   string "locked"
method call sender=:1.76 -> dest=com.nokia.mce path=/com/nokia/mce/request; interface=com.nokia.mce.request; member=validate_devicelock_code
   string "o0.AMLV/Q2mxKMHgmIyvk1"
   string "$1$AkLKN3a9$"
method call sender=:1.69 -> dest=com.nokia.mce path=/com/nokia/mce/request; interface=com.nokia.mce.request; member=devlock_callback
   int32 2
method call sender=:1.71 -> dest=com.nokia.system_ui path=/com/nokia/system_ui/request; interface=com.nokia.system_ui.request; member=devlock_close
signal sender=:1.71 -> dest=(null destination) path=/com/nokia/mce/signal; interface=com.nokia.mce.signal; member=devicelock_mode_ind
   string "unlocked"
 
maacruz is offline maacruz
2011-01-29 , 00:47
Posts: 1,101 | Thanked: 1,185 times | Joined on Aug 2008 @ Spain
#290
The validation method sends two salted strings; look for the Chinook leaked MCE source or see if the MCE source in the MeeGo Gitorious repository has the information
And how that mce source can be found?
 
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