Searching informations (was Re: dsme, Re: Would like to know the status of (was RE: Corporate ownership of open source projects [LWN]))
Thats a great site for searching the archives BTW, thanks! Allow me another plug for tabletSearch: http://www.google.com/coop/cse?cx=014783630360138230012%3A5hwd9yj0uno This is a Google Custom Search Engine (CSE) that I put up and maintain. It allows specific searches for Maemo/NIT-related information; I find it extremely handy whenever I look for anything in this domain. As an example of your needs, just search for dsme and look at the results :-) In addition, I also made a plugin for the Internet Search Applet on the Hildon Home screen. You can get it here: http://tomch.com/wp/?page_id=63 Best regards -Tom ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: dsme, Re: Would like to know the status of (was RE: Corporate ownership of open source projects [LWN])
Hello! On Wed, May 7, 2008 at 3:45 PM, Frantisek Dufka [EMAIL PROTECTED] wrote: nick loeve wrote: Yep, I have been reading the archives and have compiled a shortlist of info based on past discussions (mainly that you have started! ). I guess I might start documenting what is known already and try and get it all in one place. Yes, please do if you can. https://maemo.org/community/wiki/poweranddevicemanagement/ At the moment it is just a link dump and i intend to summarize some of the info in that page. If you anyone has more useful links/info just dump them on the page or send them in this thread. Cheers I am guilty of not doing it myself over years. I'm sure people on this list can fill some gaps. Apart from examining dsme, its modules and dsmetest in initfs (and its runtime behaviour using strace), check also powerlaunch http://powerlaunch.garage.maemo.org/ It is replacement of mce (also closed). mce talks to dsme too and is done in similar modular way so it can help with some understanding. Powerlaunch imitates some mce-dsme communication, see dsme.c,h at https://garage.maemo.org/plugins/scmsvn/viewcvs.php/trunk/powered/?root=powerlaunch As for bme and figuring out how battery charging works, one could strace it and see what tahvo/retu register it uses, some bits are mentioned in kernel headers (not sure about name now, something like tahvo_retu_user.h) and there is also this info http://marc.info/?l=linux-omapm=120752529631862w=2 Frantisek -- Nick Loeve ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: dsme, Re: Would like to know the status of (was RE: Corporate ownership of open source projects [LWN])
Hi! On Wed, May 7, 2008 at 2:43 PM, Frantisek Dufka [EMAIL PROTECTED] wrote: nick loeve wrote: 2. Is it possible to at least get some basic documentation of what bme and dsme are doing (beyond obvious basics)? There is a lot of info. Search list archives for dsme (or bme) http://www.gossamer-threads.com/lists/maemo/ If you still have some specific question not answered, ask again, maybe someone knows, maybe not. I'm not sure what 'obvious basics' means to you. Yep, I have been reading the archives and have compiled a shortlist of info based on past discussions (mainly that you have started! ). I guess I might start documenting what is known already and try and get it all in one place. Thats a great site for searching the archives BTW, thanks! -- Nick Loeve ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: dsme, Re: Would like to know the status of (was RE: Corporate ownership of open source projects [LWN])
nick loeve wrote: Yep, I have been reading the archives and have compiled a shortlist of info based on past discussions (mainly that you have started! ). I guess I might start documenting what is known already and try and get it all in one place. Yes, please do if you can. I am guilty of not doing it myself over years. I'm sure people on this list can fill some gaps. Apart from examining dsme, its modules and dsmetest in initfs (and its runtime behaviour using strace), check also powerlaunch http://powerlaunch.garage.maemo.org/ It is replacement of mce (also closed). mce talks to dsme too and is done in similar modular way so it can help with some understanding. Powerlaunch imitates some mce-dsme communication, see dsme.c,h at https://garage.maemo.org/plugins/scmsvn/viewcvs.php/trunk/powered/?root=powerlaunch As for bme and figuring out how battery charging works, one could strace it and see what tahvo/retu register it uses, some bits are mentioned in kernel headers (not sure about name now, something like tahvo_retu_user.h) and there is also this info http://marc.info/?l=linux-omapm=120752529631862w=2 Frantisek ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: dsme, Re: Would like to know the status of (was RE: Corporate ownership of open source projects [LWN])
Frantisek Dufka [EMAIL PROTECTED] writes: As for bme and figuring out how battery charging works, one could strace it and see what tahvo/retu register it uses, I did this once for the 770 (by modding the kernel, same basic results). There are some undocumented RETU and TAHVO ports that control the charge circuit. They're undocumented because setting them wrong causes the battery to overheat and possibly explode. Read at your own risk! retu interrupt mask 0x0100 is a 5 second timer used for charge timing. the ADCs are documented in that link you mentioned. retu register 9 has bits that control the charge process but I never decoded them fully. reg 15 and 16 are also involved in controlling the regulator. reg 20 mask 0x1000 is set when the charger is plugged in tahvo register 4 is the charge control frob. Values from 0 (disable charging) to 255 (maximum charge rate) can be written. Must coordinate with ADC values or the battery goes boom! tahvo reg 8 controls charging but I don't know exactly what the bits do (except that mask 0x0001 global-enables the charger). Same for reg 12. tahvo reg 13 is a signed 16 bit ADC that tells you the current flowing into the battery (positive when charging, negative when running). I don't know the scale. The overall charge process is one of setting the charge current to try to get a specific voltage (i.e. constant current (max) at first, followed by variable current (mostly reducing) to get constant voltage) and periodically shutting down the charger to read the idle voltage/current. When you need to set the charge to zero current to get the right voltage, you're done. This is a standard lithium charge cycle. I'm guessing the periodic shutdown helps it deduce charge time ETA. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
