--- Log opened Fri Feb 24 00:04:52 2012
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09:07 < r100> Hi, can someone add me (ReinD) to the WikiUsersGroup? Later this day I'd like to post my Classic battery benchmark results and I don't have access yet
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17:35 < r100> user890104: just passed the 24 hour runningtime with my Classic with your build on it :) still going
17:44 < user890104> r100: ah, great. i get about 5 days (~2-3 hrs per day) on mine, basicly while travelling to work and back
17:44 < user890104> today i noticed that the battery isn't drained to the bottom (vs. using the previous build)
17:44 < user890104> so the latest one seems to have some improvement on the battery time
17:45 < r100> yes it has improvements but you're saying that it's not using the maximum potential of the battery?
17:46 < user890104> TheSeven: do you think that there's more space for optimisations on this, or cpu/lcd were the biggest battery killers, and this is close to the best we can get?
17:47 < TheSeven> apple doesn't do any of those optimizations, yet they still outperform us (and this definitely isn't caused by CPU load/processing time differences)
17:47 < TheSeven> so there must be more to it, no idea what
17:48 < TheSeven> if we manage to fix that root cause, and then have all those optimizations, we'll probably be somewhere in that ~50h area :)
17:49 < TheSeven> r100: rockbox expects you to use your full name as your wiki user name, so adding that account to wikiusersgroup is probably going to be rejected
17:50 < r100> TheSeven: yeah first I asked here (wrong IRC, sorry guys) and then at the Rockbox they helped me change the name I used :)
17:53 < r100> TheSeven: with these new frequency scaling and lcd sleep patches I'm pretty much reaching OF runningtimes, so thats good right?
17:54 < TheSeven> well, I'm not really satisfied with it because I know there's still a huge leak somewhere
17:54 < TheSeven> apple is doing this way less aggressively
17:55 < TheSeven> and I'm also not really convinced that frequency scaling is a good idea
17:55 < r100> So are you not really satisfied with how the new patches work or with the way emcore behaves?
17:56 < TheSeven> well, I know that there's probably some trivial way to get another 10 hours out of it, and we're trying rather hard to squeeze out some more minutes right now
17:57 < TheSeven> apple must be doing some magic that we haven't understood yet
17:59 < TheSeven> measurements show that apple has a way lower idle power consumption than we have, even though we do clock scaling, lcd sleep, and so on (which apple doesn't)
17:59 < r100> thats true, they know something we don't, OF never lets the lcd fully sleep yet they have impressive runningtimes
17:59 < r100> exactly..
17:59 < TheSeven> even when fully powering the CPU and LCD down we're still using more power than apple sitting in the main menu or playing music
17:59 < TheSeven> and i have no fucking clue why
17:59 < benedikt93> btw, osos has not yet been decrypted on the s5l8702, has it?
18:00 < TheSeven> it has certainly been
18:00 < TheSeven> i probably have a dump lying around somewhere
18:00 < TheSeven> ipodcrypt.py should be able to handle that
18:01 < benedikt93> then I've missed something...haven't done that much the last few months either way
18:01 < TheSeven> it isn't any kind of crypto/security stuff that's preventing us from dualbooting, it's a nasty lockup in apple's I2C driver which we trigger somehow (also no clue why)
18:01 < TheSeven> feel free to poke at that :)
18:01 < r100> TheSeven: me neither, otherwise I would've shared it of course. but if someone ever finds out it's going to be very interesting to see what happens in combination with emcore and rockbox
18:02 < n1s> TheSeven: so technically we could dual boot but the OF hangs?
18:03 < TheSeven> yep
18:03 < TheSeven> it locks up in some semaphore waiting loop which should get signalled by the I2C IRQ handler
18:03 < TheSeven> and that IRQ doesn't seem to fire for some reason
18:03 < benedikt93> TheSeven, my goal would still rather be the N3G, although that might suffer from the same issue
18:04 < TheSeven> well, on the n3g you have one more roadblock: the FTL
18:04 < TheSeven> LCD might be similar enough to the classic
18:04 < benedikt93> that's the one thing I've poked at recently
18:04 < TheSeven> if only I had time to really look into all of these things... most of them should be fixable with some effort :)
18:04 < TheSeven> also this USB driver seriously needs a rewrite
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18:05 < benedikt93> I've rewritten almost the whole nand driver from efi in C and figured out some stuff about its workings
18:05 < TheSeven> while implementing one for the STM32F4xx which has a similar USB core (and a proper datasheet) I noticed quite a couple of bugs in our driver
18:06 < benedikt93> Problem is that my USB knowledge is pretty limited
18:07 < benedikt93> it has certainly been <-- do you remember if its the same procedure as applied to the image in nor?
18:08 < n1s> would the reformatting that the emcore install does get in the way of dual booting if this hang is fixed?
18:09 < TheSeven> benedikt93: I think crypto on all of our targets is fully reversed
18:09 < TheSeven> which image are you talking about?
18:09 < TheSeven> i mean you're disassembling a nor dump right now, aren't you?
18:09 < benedikt93> yep, and osos appears to be the same image format
18:10 < benedikt93> (maybe using another key)
18:10 < TheSeven> n1s: it shouldn't (at least it didn't on the nano2g), and we might find a way around  that in the long term (extended partition support might help here)
18:10 < n1s> ok
18:10 < TheSeven> rockbox currently can't read apple's disk format because of nested partition tables
18:11 < n1s> sounds like that could be fixed, yes
18:11 < TheSeven> we might also do some more spoofing in the ata driver to emulate a sane partitioning to rockbox
18:12 < TheSeven> and in the long run one might want to try to reintegrate that one with rockbox's ata driver that the other targets use
18:12 < TheSeven> and have some sane APIs to implement this hybrid PATA/CEATA thing
18:15 < TheSeven> I'm really angry at apple for fixing highlevel bootloader vulnerabilities on platforms which have known unfixable hardware vulnerabilities
18:15 < TheSeven> they could have made installation so much easier... but no, they force us to rely on DFU for everything except 1st generation classics that have never been updated