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#rockbox log for 2010-05-02

00:02:22kugelStrife89: oh, a patch to move some C standard library into a separate subdir, so that OS libraries can be used instead of our own
00:08:29kugelstrpcasecmp == strcasecmp?
00:09:17 Join ollebe [0] (~olle@root.rot.sgsnet.se)
00:10:02pamaurykugel: what is the solution to the fprintf problem ?
00:10:18 Join Unhelpful [0] (~quassel@71.173.205.32)
00:10:18 Quit Unhelpful (Changing host)
00:10:18 Join Unhelpful [0] (~quassel@rockbox/developer/Unhelpful)
00:10:39 Join dfkt_ [0] (dfkt@unaffiliated/dfkt)
00:10:55 Quit dfkt (Disconnected by services)
00:11:00 Nick dfkt_ is now known as dfkt (dfkt@unaffiliated/dfkt)
00:11:21Bagderkugel: yes strpcasecmp seems to be a locally implemented strcasecmp
00:11:35kugelwell, it's a macro expanding to our fdprintf (which takes a file descripter, not a FILE * stream). fprintf is called only stderr which is mapped to an fd instead
00:12:26Bagder... from before it was in the plugin.h one might presume
00:12:55***Saving seen data "./dancer.seen"
00:22:17 Part Moguta
00:22:50 Quit MuscleNerd (Read error: Connection reset by peer)
00:27:24RandomInsanoSo, telechips bootloader, doesn't seem to work so good. Built iAudio 7 bootloader, modified the main() function to just change GPIO port C, but I have zero response on those pins. Do I need to do anything with bootloader.bin other than use tccboot?
00:27:54 Join MuscleNerd [0] (eric@adsl-75-16-57-151.dsl.irvnca.sbcglobal.net)
00:29:32RandomInsanoMy telechips CPU is a newer version of the 77X series from what I've compared in the spec sheets, with the IO addresses on the 8200 being remapped so many bits higher (0x80003020 for port C instead of 0x80000320 in the 77X series)
00:30:12 Join phanboy4 [0] (~benji@c-174-49-112-244.hsd1.ga.comcast.net)
00:31:45 Join Blue_Dude [0] (~chatzilla@rockbox/developer/Blue-Dude)
00:31:49Blue_DudeI am really bummed with SDL Audio right now.
00:32:21Blue_DudeI want it to ... behave!
00:32:58Blue_DudeI don't think it's right to go with a different architecture just because the sim doesn't act like the target.
00:33:33 Quit halmi_ (Read error: Connection reset by peer)
00:34:22 Quit pamaury (Quit: Quitte)
00:35:21 Join halmi [0] (~netbook@188-22-114-197.adsl.highway.telekom.at)
00:36:55JdGordonBlue_Dude: crazy stuttering?
00:37:06JdGordonI tihnk thats the same issue I had which made me give up :/
00:37:20Blue_DudeThe SDL callback doesn't work the same way as the target.
00:37:55 Quit dfkt (Quit: -= SysReset 2.53=- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn.)
00:38:11Blue_DudeAnd it insists on creating a 44112 byte buffer no matter what you ask for.
00:39:11Blue_DudeIt doesn't behave like a real DMA ISR callback so I'm kinda screwed.
00:42:42Blue_DudeAll this begs the question: if it needs a workaround to get the sim to work, is it worth doing at all?
00:43:11 Join saratoga [0] (~9803c6dd@gateway/web/freenode/x-divqxufwzqjtwtgv)
00:43:43saratogaBlue_Dude: did you ask the SDL people about it?
00:44:18Blue_DudeOne possible solution is a way to get the sound.c driver to sleep for a tick or so. But I tried it and it bombed. I think sleeping that thread was a bad idea.
00:44:45saratogaRandomInsano: are you sure you've got everything linked correctly for the new CPU?
00:44:46Blue_Dudesaratoga: not yet. I spent a good part of the day away from the internet trying to get it to work.
00:45:33Blue_DudeAnd it seems to be an SDL issue. Maybe I just don't know enough about it to get it to behave. Or maybe it's a Cygwin thing. :(
00:46:41saratogahard to believe the SDL buffer sizes are hard coded
00:46:41JdGordonBlue_Dude: it is definitly worth doing, even if SDL needs special casing
00:47:21Blue_DudeI don't think it's hard coded. It's just that the lib function has a lot of latitude to decide what's best given the hardware.
00:47:49Blue_DudeJdGordon: I think this is beyond special casing. I'm not sure it'll work at all on the sim.
00:48:26 Join Xqtftqx [0] (~Xqtftqx@d118-75-250-46.try.wideopenwest.com)
00:49:05saratogaBlue_Dude: don't people do games in SDL? how could a 1/4 or 1/8 second buffer be acceptable for all cases?
00:49:10saratogathere must be a way to change it
00:49:16 Join Chern [0] (~Chern@78.150.144.205)
00:49:17 Join n00b81 [0] (~185b52cd@gateway/web/freenode/x-sfccbafswtwhibcz)
00:49:26Chern'lo
00:49:29*Xqtftqx is listening to: Fort Minor - The Rising Tied - Remember The Name (feat. Styles Of Beyond) - (0:17/3:50)
00:49:34XqtftqxGood song
00:50:01AlexPXqtftqx: Please turn that off in here
00:50:11Xqtftqxy?
00:50:22AlexPThis is an on-topic channel only
00:50:31AlexPWe don't want to know what you are listening to
00:50:39XqtftqxO, im sorry
00:50:48Blue_DudeBeats me. There has to be a way around it. I tried changing the way the audio channel was init'ed but it didn't seem to have any effect on buffer size.
00:50:59*Xqtftqx is listening to: Ke$ha - Animal - Take It Off - (0:04/3:35)
00:51:01Xqtftqxthat better?
00:51:08AlexPXqtftqx: Stop it now
00:51:33ChernXqtftqx: stick by the rules mate
00:51:53 Quit kisak_ (Quit: Lost terminal)
00:53:35XqtftqxAlexP, what kind of songs do you like? Rockbox is for music players, so i believe its relevant
00:53:41Mode"#rockbox +o AlexP" by ChanServ (ChanServ@services.)
00:53:55AlexPXqtftqx: Last warning. Stay on topic or leave (or be muted)
00:54:28ChernXqtftqx: this is for development chat, not user preferences
00:54:37AlexPChern: And support :)
00:55:01XqtftqxIm sorry.
00:57:06ChernAlexP: that is a rather bad mix
00:57:19AlexPIt seems to work quite well usually
00:57:38AlexPAnd it doesn't separate the devs from users which we don't want
00:57:46saratogai've wanted different channels for a while since it makes skimming the logs a lot easier, but most people don't
00:57:56Chernaah, I guess that is alright for small developments
00:57:57n00b81I don't see why not.
00:58:13AlexPOne argument is that you end up having to read both anyway
00:58:22AlexPAs quite often stuff moves between areas
00:58:51Mode"#rockbox -o AlexP" by ChanServ (ChanServ@services.)
00:59:00Chernso do you work for your own enjoyment? or do you slave for the users?
00:59:01scorchesupport topics often turn into development topics, so it makes going through logs harder as you would likely have to go back and forth
00:59:46AlexPChern: Hard to speak for everyone, but principally for ourselves
00:59:58Blue_Dudedevs are slaves to their own improvement requests.
01:00
01:00:00AlexPChern: Of course we do care about users, but not as the be all and end all
01:00:17AlexPi.e. if users want something the devs don't, then the devs win :)
01:00:51AlexPAnd it depends on the person of course :)
01:01:22ChernBlue_Dude: you hold a strong opinion
01:02:05Blue_DudeMerely ironic commentary. Don't consider it too deeply.
01:02:49ChernI was thinking of porting rockbox to the Playstation Portable, has anyone attempted to do such a thing
01:02:58AlexPNope :)
01:03:12AlexPIt wouldn't make much sense as is IMO, you would want it as an app
01:03:22Chernwell rockbox isn't an app, is it?
01:03:27AlexPNope
01:03:33AlexPIt is a complete firmware/OS
01:03:41Chernindeed
01:03:42Blue_DudeRockbox is an operating system.
01:03:48Chernthats an OS
01:04:10AlexPYeah, so using it as an OS wouldn't make much sense on the PSP IMO
01:04:12saratogais there any reason to run rockbox as an app on the PSP though?
01:04:20saratogait seems like a good firmware replacement target
01:04:25Chernindeed
01:04:27AlexPBut e.g. the simulator runs on a PC as an app
01:04:28saratogathats how those hacked media players on the gameboy work
01:04:40AlexPsaratoga: Oh, as a dual boot?
01:04:42saratogause the built in software as a bootloader basically
01:04:53AlexPI'm displaying my PSP ignorance here
01:05:06saratogawell that the DS not the PSP, but hardware wise they're not entirely different
01:05:14Chernyes they are
01:05:17AlexPI thought of it more as a platform, but I guess that isn't quite true
01:05:25saratogaunless you really want networking while you're playing music i'm not sure what the app option gets you
01:05:37AlexPyeah
01:05:48saratogaactually i've always wanted to do a nintendo DS port of rockbox, but never really had the time
01:06:15Chernwell, I was hoping someone would have done it already
01:06:37Chernreplaced the onboard firmware os thingy to the rockbox
01:06:49Chernfaster loading times and more features
01:07:35saratogahttp://sites.google.com/site/linuxonpspproject/
01:07:42saratogathese guys have a tool chain and drivers for the PSP
01:07:57n00b81That's not complete at all
01:08:13n00b81Most of the drivers haven't been RE'd yet.
01:08:36 Quit rbert (Ping timeout: 276 seconds)
01:09:03Cherndriver?
01:09:13kugelso many warnings with when using the __attribute__((format)) feature of gcc :\
01:09:13 Nick bgs100 is now known as bgs000 (znc@unaffiliated/bgs100)
01:09:21AlexPChern: to talk to the hardware
01:10:08saratogawhats missing?
01:10:15Cherndrivers
01:11:02saratogafor what?
01:11:12*AlexP seems to be constantly misunderstanding Chern
01:11:34AlexPChern: I thought you must be non-English first language and not know the word :P Sorry :)
01:11:54ChernYeah sorry
01:11:57ChernI'm Scottish
01:12:09AlexPNearly as bad :)
01:12:21scorchewell, "driver" is more of a technical term than and English word
01:12:35AlexPDepends on the language
01:12:42AlexPIt is often translated
01:12:52AlexPBut yes, I would expect most people to know it
01:13:07Chernwe are taught that a driver is a car operator
01:13:49AlexPAnyway, we are creeping off-topic
01:14:17Chernyes, shouldn't probably do that
01:14:22Blue_DudeAw, what the bloody hell?
01:14:32Blue_DudeWhy are we *mixing* in SDL audio?
01:14:45Chernis there a MIPS port of rockbox existing?
01:15:02AlexPIt runs on a MIPS target, yes
01:15:04 Quit ender` (Quit: You don't have to think too hard when you talk to teachers.-- J. D. Salinger)
01:15:15AlexPbut there is more to it than the arch
01:15:16n00b81Chern: such as the gigbeat
01:15:23AlexPgigabeat is ARM
01:15:32n00b81uggh :P
01:15:33ChernAlexP: I realise this
01:15:48AlexPsure :)
01:15:54 Nick bgs000 is now known as bgs100 (znc@unaffiliated/bgs100)
01:16:13n00b81AlexP: but it makes starting the port a bit easier ;-)
01:16:46saratogawhat?
01:16:55Chernthe hardest part would be breaking the chain of trust in the system
01:17:22saratogai think thats already done
01:17:32saratogaas evidenced by the linux port
01:17:38Chernfrom boot
01:17:57n00b81The linux port is an app.
01:18:08Chernthere is the existing flaw in which they initialize a checksum with a value of 0 in the IPL page
01:18:09n00b81That just runs via a custom firmware environment.
01:18:49 Join Silverwolf [0] (~richard@d149-67-106-191.col.wideopenwest.com)
01:19:05Cherndoes rockbox make use of a MMU?
01:19:31saratogaChern: no
01:19:38saratogan00b81: what does that mean?
01:19:44Chernthats good, as there isn't one
01:19:55kugelBlue_Dude: you could try my alsa pcm driver shows the same behavior
01:20:05 Quit Silverwolf (Client Quit)
01:20:17Blue_Dudealsa?
01:20:22 Quit geertvdijk (Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100401080539])
01:20:32Chernsaratoga: it's a boot controlled via hybrid or C-IPL firmware
01:20:42Chernremoves DRM for unsigned code
01:20:49kugelkugel-rb.git/shortlog/refs/heads/alsa-sim">http://repo.or.cz/w/kugel-rb.git/shortlog/refs/heads/alsa-sim
01:21:41Blue_DudeWhat is it?
01:22:04kugelhm, forget it, I don't think alsa is going to work on cygwin
01:22:04ChernIs there a list of what rockbox requires hardware wise?
01:22:19Chernor can someone give me a rough idea
01:22:28saratogaChern: couple dozen MHz, couple MB of RAM, storage space for music
01:23:04Chernanything more specific?
01:23:10saratoganothing else comes to mind
01:23:19saratogai guess a compiler if you want to be able to write code
01:23:23Blue_Dudekugel: I just need a real devel enviroment. :(
01:23:24Chernwhat about a speaker?
01:23:27saratogabut thats kind of obvious
01:23:36saratogai don't think any rockbox devices have a speaker, so no
01:23:53kugelsome ondas have a speaker and it's enabled
01:24:11 Quit Unhelpful (Remote host closed the connection)
01:24:12Chernaah
01:24:20Chernso rockbox is only for small machines?
01:24:37saratogayes, you may want to look at our front page if you haven't . . .
01:24:43saratogawe're a firmware for mp3 players
01:25:02Chernaah, sorry I thought it was for real machines
01:25:42*gevaerts looks at his DAPs. They look real...
01:27:30*Chern looks at PS3
01:32:45 Join Unhelpful [0] (~quassel@71.173.205.32)
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01:32:45 Join Unhelpful [0] (~quassel@rockbox/developer/Unhelpful)
01:34:03 Quit n00b81 (Ping timeout: 252 seconds)
01:35:42ollebeturns out i was wrong about the storage in E10
01:35:59ollebeif anyone is interested, the SoC has 8 Mbit of NOR flash
01:36:16saratogathats just ROM, it won't really matter for rockbox
01:36:41ollebehow can you be so sure?
01:37:04saratogawhat use would we have for memory we probably can't write to and is too small to store anything we would want to write?
01:37:49saratogamaybe someday you would want to write your own bootloader to it to replace the OF one if theirs have some flaw, but most targets don't even bother doing that
01:37:58ollebei'm trying to figure out the original firmware, and I think an additional 8mbit of flash is relevant
01:38:28ollebethe firmware has to be stored somewhere, and this is one place where a part of the firmware might reside
01:38:46saratogaits probably just their bootloader
01:38:58saratoga1MB is too small for firmware on typical players
01:40:21linuxstbsaratoga: Lots of targets have the full firmware in NOR, so it can be important - we need to insert our bootloader there (e.g. the h1x0, h3x0).
01:42:20saratogai didn't say none did it, just that most don't
01:42:51*ollebe goes back to the disassembler
01:44:09kugelarghhhh
01:44:10saratogahow does installing work on the hx00?
01:44:45linuxstbOur bootloader is merged with an OF upgrade file, and then the OF is used to flash it to NOR.
01:45:05saratogaah so like the sansas
01:45:24*Blue_Dude beats head against SDL code. Cries.
01:45:32tmzt_kugel: alsa won't, but you can maybe use alsalib with win32 pcm output, though I don't know why
01:45:38linuxstbsaratoga: Which ones?
01:45:55saratogaAMS at least, PP too I think
01:46:12saratogaalthough its technically a NAND flash chip it goes on
01:46:22 Quit JohannesSM64 (Quit: WeeChat 0.3.2-dev)
01:46:24saratogasince NOR isn't so popular anymore
01:48:01 Nick fxb is now known as fxb__ (~felixbrun@h1252615.stratoserver.net)
01:48:59linuxstbYes, similar to AMS. PP is different - both the bootloader and OF are stored on the NAND, and sansapatcher replaces the OF completely with our bootloader, and moves the OF image somewhere else in the firmware partition so we can dual-boot.
01:51:08saratogaoh ok
01:51:42saratogawhy does friendlyzookeeper have 76 of his 81 posts deleted
01:52:32Blue_DudeOh FFS. is SDL just hosed in Cygwin or does anybody else have this problem?!
01:53:12Blue_DudeYou'd think the SDL.dll would work the same as the lib, right?
01:53:58saratogaRandomInsano: just because it links doesn't mean any of the addresses are correct
01:54:19saratogaare you sure you've actually put your code into system RAM where the system will execute it?
02:00
02:01:03Blue_DudeOK, I'm done. Anyone know how to get hold of the SDL guys? I'm totally stuck.
02:01:50Blue_DudeAre we working with anyone there?
02:03:06saratogai don't think so
02:03:13saratogabut presumably they have a mailing list or an IRC channel
02:03:18 Join GeekShadow [0] (~Antoine@reactos/tester/GeekShadow)
02:03:28saratogaits a pretty widely used package
02:04:16RandomInsanosaratoga: I have no idea. TCC77X RAM location is exactly the same as the TCC8200
02:04:39RandomInsanoI don't actually know how rockbox does anything really.
02:04:39saratogayou should probably compare to the OF and check then
02:05:08RandomInsanoI can barely read assembler. It's inital jump is in the 0x20000000 address space.
02:05:39RandomInsanoThe datasheet confirms where system RAM starts by defaly
02:05:41RandomInsano*t
02:06:16 Join Rob2223 [0] (~Miranda@p4FDCB2FD.dip.t-dialin.net)
02:06:23 Quit petur (Quit: Zzzzz)
02:06:28saratogai wouldn't trust the datasheet 100%, nor would I assume that the rockbox binary has been made correctly
02:06:33saratogaeither could be wrong
02:06:58saratogaalternatively, you could try patching the OF with your code to verify that the GPIO pins work the way you think they do
02:07:03RandomInsanoThen here's the fun problem: how do I find out?
02:07:38RandomInsanoHow can I patch the original firmware? Plunk some compiled assembler then change the original telechips jump call?
02:07:45saratogayeah
02:07:58linuxstbRandomInsano: The telechips bootloaders can be built in two ways - either to run as standalone, or to be appended to the OF. I'm not sure what the default is for the iaudio 7...
02:08:05RandomInsanoThat'll be fun to figure out... Any docs to guide me?
02:08:35RandomInsanolinuxstb: What's the default on your telechips port
02:09:02linuxstbThe source is the documentation... I'm just looking now.
02:09:10RandomInsanoAnd how can I find out the differences? There isn't a lot of documentation on how everything bulds and compiles
02:09:37Blue_DudeSigh. SDL isn't ever going to work the same way as the target hardware. SDL is double buffered and requires the buffer to be full before the callback ends. Since my design requires the hardware to actually DMA, I think we're stuck.
02:09:47 Quit Rob2222 (Ping timeout: 265 seconds)
02:10:50RandomInsanoAll telechips ports seem to at least share the same telechips.c bootloader. I just don't know what the different targets do with the object file created.
02:10:59linuxstbRandomInsano: It looks like the iaudio 7 is built to be appended to the OF. So there is a good chance it will just crash if you try running it now.
02:11:04kugelsoo, I finished my work so far
02:11:12kugeldoes anyone want to have a look?
02:11:13RandomInsanoOooooh. Well, that sucks.
02:11:15linuxstbRandomInsano: The main telechips code is in firmware/target/arm/tcc77x/
02:11:52RandomInsanoI've edited the defines to point to the right hardware address for my chip in... tcc77x.h
02:11:56linuxstbRandomInsano: The very first code that is run is crt0.S - you should start by reading that.
02:12:09 Quit DataGhost ()
02:12:11kugelmake sim use host C library: http://pastie.org/942001
02:12:24Blue_DudeI'm going to have to either go with the current mix in place scheme and abandon just in time mixing. Or have huge mix buffers on the target. Or have really clumsy custom tweaks for the sim.
02:12:28RandomInsanoI mucked with that a little as well. Can I write my ASM code in there then?
02:12:49RandomInsanoI'll throw in an infinite loop and stuff. Writing assembler for me is a lot easier than reading it :P
02:12:51Blue_DudeWhat a royal pain. I'm off.
02:12:56***Saving seen data "./dancer.seen"
02:13:00Blue_DudeBack Monday!
02:13:37 Quit Blue_Dude (Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100401080539])
02:13:49linuxstbRandomInsano: If you want to just build a simple standalone binary (i.e. not one that should be appended to the OF), undefine TCCTOOL in firmware/export/config/iaudio7.h
02:14:13RandomInsanoUndefine it? That's counterintuitive :S
02:14:24RandomInsanoBut I'll give that a shot
02:14:36RandomInsanoI have to run. Thanks for the help. I'll try it later tonight
02:15:07 Quit CGL (Remote host closed the connection)
02:15:15 Join mikroflops_ [0] (~yogurt@90-227-45-110-no112.tbcn.telia.com)
02:15:32linuxstbRandomInsano: The first thing I would try to do though is to get dual-boot working - i.e. just make your code start the original firmware unconditionally. Then add a small delay before starting the OF, to confirm your code is running OK.
02:17:05 Quit Kupop (Ping timeout: 240 seconds)
02:19:04 Quit RandomInsano (Ping timeout: 264 seconds)
02:19:04 Quit mikroflops (Ping timeout: 246 seconds)
02:24:54 Join Boldfilter [0] (~Boldfilte@adsl-82-151-224.jax.bellsouth.net)
02:32:52CIA-5New commit by 03wincent (r25769): pdbox: Fixed loading of sound files, pdpod_drums.pd works now.
02:33:38*linuxstb does a double-take...
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02:54:03kugelsaratoga: can I close your raaa task or should I put my work into that one?
02:54:11saratogakugel: just close mine
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03:00
03:00:32Strife89I must have missed something. pdbox?
03:04:56saratogalast years soc project
03:05:27wincent:-)
03:07:31wincentAt last, after a months-long bug hunting session.
03:13:32kugelwww.rockbox.org/tracker/task/11234">http://www.rockbox.org/tracker/task/11234
03:21:37 Quit Xqtftqx (Read error: Connection reset by peer)
03:23:51ollebeit's a bit funny that iriver seems to link files from kernel.org's fdisk in this firmware
03:24:29ollebei remember complaining via email a long time ago, since it should be a GPL violation
03:25:10ollebethe source file from fdisk seems to be GPLv1
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04:00
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04:30:08CIA-5New commit by 03kugel (r25770): Fix wrong udelay logic that made it be way off.
04:44:49CIA-5New commit by 03jethead71 (r25771): Do some SPC codec optimizing for ARMv6 (as a training exercise), tweak realtime BRR for all CPU that use it, add Gaussian ASM optimization for all ARM ...
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04:48:24saratogajhMikeS: the speed up on the F is due to the UNLIKELY macros?
04:48:51saratogahmm no you added a lot of ARMv4 ASM too
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04:55:14jhMikeSsaratoga: there was some gain from the macros. The new ASM seemed like most of it for < v6
04:55:40saratogawhats the advantage of ARMv6?
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04:58:57jhMikeSgetting things done in fewer instructins and taking advantage of piplining for sure
04:59:24saratogai was wondering which of the instructions distinquish it from armv4?
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05:01:01jhMikeSall those funny-looking :) multiplies, packs and saturates. lots of stuff.
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05:08:55jhMikeSsaratoga: libmad dct32_arm.S and synth_full_arm.S is about as wrong as it gets for stalling it out (or is it *right* IF you want it stalling? :).
05:09:10saratogajhMikeS: yes I had a feeling about that
05:09:28saratogaits probably written for ARM7TDMI where everything stalls anyway
05:09:49saratogaloads and muls need to be interleaved properly I guess?
05:09:57jhMikeSmults and loads have result latencies but can be one or two cycles throughput
05:10:09jhMikeSsaratoga: indeed they do
05:10:20saratogaany interest in looking at it?
05:10:25jhMikeSeven shifter operands, which count as early registers
05:10:45jhMikeSI was looking at it, noting its lack of commentary. :)
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05:12:34saratogai also wonder if the filterbank really needs to accumulate into a 64 bit variable
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05:15:13jhMikeSI don't believe colfire does, nor can it anyway. Probably uneeded
05:15:42jhMikeSbut, you have to if the adds would exceed 32 bits
05:17:00jhMikeSarmv6 has 32x32->64 and truncate to MS 32 but older ARM doesn't
05:19:11saratogaso it would have to be a mul then a shift anyway?
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05:21:03jhMikeSyeah, older arm has no fractional instructions, which I momentarily forgot about.
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07:23:23saratogadoes test codec still not work on the clipv2?
07:27:11saratogajhMikeS: are there any restrictions on writing back to the same register you read on arm9/10/11 ?
07:27:23saratogaperformance wise i mean
07:30:55saratogaoh good test_codec seems to be working again
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07:33:58jhMikeSsaratoga: no, it's about early/late registers and interlocks between results
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07:34:57jhMikeSit's all explained in the ARM6 spec which you can get at the arm site. (which I think you need to register for now)
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07:37:37saratogai've got the docs, i'm just lazy and tired
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07:37:56saratogajhMikeS: so basically, just don't use anything immediately after multiplying or loading it?
07:38:10jhMikeSah, ok. with 920T it's just the memory loads that stall afaiu
07:38:12saratogaFWIW i've only got ARMv5 targets handy
07:38:22saratogai think the multiplier does too
07:38:46saratogaat very least since its 2 cycles latency on a multiply, theres probably an extra stall if you try to use it immediately
07:38:59jhMikeSthe shifter operands can stall too
07:39:10jhMikeSyes
07:39:31jhMikeSwait at least the result latency if possible
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07:40:18jhMikeSof course things like the accumulator for an mla are late registers and aren't used immediately, so that can subtract a cycle
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07:40:54saratogawhats a late register?
07:42:29jhMikeSthere's the early registers, which are needed upon issuing the instruction, and the late registers, usually result registers that are only updated in later stages, so they're not interlocked until a result is written. each is explained in the spec.
07:43:47jhMikeSto clarify, it's specified on a per-instruction or operand type basis
07:44:08saratogaah ok so basically the late registers are just things that only need to be ready by the end of the op, and not the beginning?
07:44:13saratogaerr end of the cycle
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07:49:11jhMikeSthat's how I understand it
07:50:02saratogai'll try the easy things and see if it makes a difference
07:51:14jhMikeSjust keep the results and the use a few instructions apart where possible. also, str has an interlock with the source register and the following instruction
07:51:43saratogait doesn't have a write buffer?
07:51:53jhMikeSlike str r0, [r1]. mov r0, #0 can stall
07:52:04jhMikeSit does
07:54:24saratogalooks like it does speed things up a bit
07:55:23saratogaeach smlal i reorder saves us about 10kHz realtime in synth.c :)
07:55:36saratogaon the clipv2
07:56:04jhMikeSthere's also flag cycle distance which I'm a bit confused about
07:57:08jhMikeSI guess it's the stm instruction that keeps regs locked behind it, not str
08:00
08:01:51*jhMikeS thinks it's a problem if mp3 decoding takes 42% of what it takes to emulate an especially intense SPC file
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08:04:07saratogajhMikeS: which target?
08:05:27jhMikeSthe beast. I think the actual MHz might be wrong due to automatic scaling and the plugin the the wrong value for decoding, but the proportion should hold. I'm checking that.
08:08:01saratogais there any advantage to trying to issue mul right after a ldm command? i'm wondering if the multiplier can be working at the same time as long as they don't share any registers
08:08:18jhMikeSit should
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08:14:48saratogaif I do "ldmia %2!, {r0, r1, r2, r3}", is r0 available before the other registers?
08:15:02jhMikeShmmm...it looks like test_codec uses CPUFREQ_MAX, and constant decoding would cause it to run at 528, so 69-70MHz and about 30MHz for mp3 atm.
08:15:10jhMikeSsaratoga: yes
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08:17:19jhMikeSsaratoga: single cycle for the instruct but, 3,3,4,4,5,5,6 for 1st address 64-bit aligned and 3,4,4,5,5,6,6 for not 64-bit aligned
08:18:10saratogawait PROD_ODDBACK_A is defined but never called
08:18:14saratogawhy do we have this
08:18:14jhMikeSthat's for ldmia rx, { r1-r7 } and not to pc. they don't seem to show it beyond 7 :\
08:18:20saratogai just spent a while rescheduling it
08:18:40saratogajhMikeS: those are the cycles when they become available?
08:18:51jhMikeSyes, the result latency
08:19:06saratogaso the S has a 64 bit bus to L1?
08:19:36jhMikeSI don't know to be honest
08:20:12saratogawell if it can fetch two 32 bit words in one clock :)
08:21:48jhMikeSof course that makes sense. I've just never read it explicitly stated in a doc since I suppose it wasn't too relevant. :)
08:23:13saratogahuh www.rockbox.org/tracker/task/6705">FS #6705 already had the unused ASM code in it
08:23:18saratogai wonder how that happened
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08:30:24saratogawww.rockbox.org/tracker/task/11235">FS #11235 - libmad asm tweaks for ARM9 and above
08:30:28saratogavery minor improvement
08:30:32saratogabut better then nothing
08:30:42jhMikeShow much?
08:30:49saratoga200kHz on my clipv2
08:31:02saratogai thought it would be more but it turns out most of the ASM i fixed isn't actually used :(
08:31:24saratogai didn't touch the order of the LDM commands either, so maybe theres some further improvement
08:31:25jhMikeSARM11's supposed to do this in 10MHz, not 30 like it is now :)
08:33:03saratogaits more then 10 MHz IIRC
08:33:43saratogai though they claimed like 20MHz, and only by significantly sacrificing accuracy
08:33:57*jhMikeS remembers seeing *something*
08:34:06jhMikeSwhat's PP claim?
08:37:06saratogawww.mp3-tech.org/programmer/docs/mp3_wp.pdf">http://www.mp3-tech.org/programmer/docs/mp3_wp.pdf
08:37:14saratogathis says 18MHz on ARM9E
08:37:38saratogathough since its arm ltd, i'm guessing they're using their emulator and assuming 0 latency memory
08:37:49saratogarather then an actual hardware implementation with DRAM
08:38:37saratogai guess turning the S clock way down would improve the total mhz since then teh DRAM would look a lot faster
08:39:35saratogaalso I like how almost that entire PDF talks about parts of the decoder that use negligible time
08:40:19saratogahaha and they brag about figuring out how to do a fourier transform in nlog n time
08:40:21saratogagreat work guys
08:40:26jhMikeSagreed, it seems perhaps it's 70-80% faster at 528 than 264.
08:41:00saratogaCarl Friedrich Gauss wants to high 5 you, but he can't since he figured that out 200 years ago and is now dead
08:41:15jhMikeSum...hehe
08:42:10saratoga"The target architecture is capable of implementing a memory load in 3 cycles and store in 2 cycles. However, by organising the data so that memory access is via consecutive addresses it is possible to achieve effective load and store operations in a single-cycle, which significantly enhances the performance of the convolution operation."
08:42:12saratogawoah
08:42:16saratogawe don't do that
08:42:20saratogaactually we thought that wasn't possible
08:43:04jhMikeSyes, keep dependencies spread apart in the stream I always say
08:44:36saratogalooking at the imdct we also don't exploit the imdct_half trick from ffmpeg, though thats probably not going to make much difference
08:45:08jhMikeSwhat's that?
08:45:38saratogabasically, the output of the imdct has middle half symmetry, so you really only need to produce half as many samples
08:45:49saratogayou can generate the rest when windowing
08:46:08saratogabut the symmetry is kind of ackward, so in reality it doesn't save you much, at least not on arm
08:46:36saratogastripwax worked it out a while ago, i think you could save maybe 1 load per PCM sample produced
08:47:07saratogaand of course you saved memory, but since the mdct is only 36 samples for mp3, thats only 18 bytes saved!
08:47:22saratogaerr 18*4
08:47:34n1ssaratoga: loading and storing multiple registers at once is a nice improvement on coldfire too (when using asm, gcc seems to never use movem by itself except for storing and loading register on the stack)
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08:48:56saratogalookinag at synth_full.S, i bet reordering the imdct output wouldn't help much on arm9 since most of the ldr time is probably hidden by stalls in the multiplier anyway
08:49:19saratogaarm11 might gain though, since it can do much faster ldm then ldr
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08:50:11saratogan1s: i think cf could be made a lot faster for mp3, its much slower then I would expect given its hardware
08:51:11saratogaonly marginally faster then the clipv2, in spite of having a much more powerful EMAC, and having 0 latency IRAM
08:52:20n1sprobabaly, yes
08:54:04saratogais the CF emac single cycle for multiply accumulate?
08:55:11n1syeah
08:55:28n1sit always accumulates
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08:55:37n1sor subtracts
08:55:55*jhMikeS just sees alot of ldr r10... immediately followed by smlal :\
08:56:05saratogasynth_full.S?
08:56:54jhMikeSyes
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09:01:18jhMikeSit says RdLo is the late reg, but it also sets the low part before the high one
09:01:27amiconnjhMikeS, saratoga: Yes, the arm1136 does have 64 bit access to L1
09:02:37amiconnAfaik the 10MHz are claimed for neon, but that's armv7
09:03:04n1sneon, would be very cool
09:03:10n1ss/,//
09:05:45saratogawell i found the paper for the DCT we're using
09:05:55saratogait was apparently optimal in 1984, donno if anyone has done better since
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09:23:41amiconnIiuc the optimal implementation of (i)(m)dct depends on the architecture you're running it on
09:27:41saratogatrue
09:28:10saratogabut for devices like we run on, lowest multiplication count is a pretty good proxy for being optimal
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09:31:28amiconnOn coldfire that's not true
09:32:03amiconnOn coldfire, the algorithm should utilise fused multiply-add wherever possible
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09:32:33amiconnIf you look at the coldfire idct for mpegplayer (libmpeg2) you'll see what I mean
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09:39:18amiconnThe armv6 implementation is based on the same idea
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09:48:16*amiconn spots a few places for optimisation in libmpeg2, both for armv6 and armv4
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09:48:58amiconnFor armv4 it may be beneficial to use 32 bit ints in the idct instead of 16 bit, because it will enable us to use ldm
09:49:23amiconn(same thing as I've done for the libdemac filters on armv4)
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10:48:53Buschelsome more comment on libmad's synthesis filter:
10:49:37Buschela) the asm'ed dct32 is not optimal in terms of number of instructions. the original author stated it in the origin fs entry
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10:49:54Buschel(do not know the fs id by hard, but should be easy to find)
10:51:06Buschelb) the synthesis windowing itself can be further optimized (as ffmpeg or mpc use it). for mpc r17720 gives a solution for taking advantage out of symmetries within the window
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10:53:15Buschelb) r17724 that is...
10:56:58Buschela) fs #6705 implemented asm'ed dct32 for libmad
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11:04:25amiconnNumber of instructions is less important than number of cycles
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11:13:04Buschelamiconn: yes, but I am sure it is fine to assume more instructions is equal to more cycles in this case. the asm code was optimized for size.
11:13:55BuschelI once changed the libmad dct32 asm-code to fit to the mpc decoding. it was slower than the current c-implementation (compiled with -O1).
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11:15:13amiconnarm7tdmi has several multi-cycle instructions. Among them are multiplies, single loads and stores
11:15:56Buschelyes, I am fully aware of this fact.
11:16:01n1sthat dct asm is probably slower than compiled c on arm cores other than 7tdmi too
11:16:31n1sMr. Someone should experiment a little
11:20:00n1sthe dct on coldfire uses the MUL asm macro which unfortunately hits the mac-movclr stall so that could be improved too
11:23:46dfktlinuxstb: seems we got a correct sdcfg for the cowon s9 - 0xa1102800 (from: http://iaudiophile.net/forums/showpost.php?p=290112&postcount=28)
11:26:07amiconnStalls is what can be reduced in the armv6 idct for mpegplayer too
11:26:38amiconnSomehow I totally forgot about latencies when doing the current implementation :\
11:29:27linuxstbdfkt: That's good. Do you think I should commit it to svn?
11:34:12Tornei'm tempted to commit the ipod shutdown/startup change (clear iram on shutdown, instead of doing the weird thing of shutting down via the OF's low battery handler)
11:34:40Torneit seems to work more or less okay for everyone who's tried it, modulo the odd few freak ipods which weren't behaving like the rest *anyway*
11:35:30linuxstbTorne: Yes, go for it.
11:35:36Torneand the leftover-stuff-in-iram explanation does seem plausible given the limited look into the bootrom i've had
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11:41:32CIA-5New commit by 03torne (r25772): www.rockbox.org/tracker/task/11149">FS #11149: alternative fix for ipod startup/shutdown issue ...
11:42:52CIA-5New commit by 03dave (r25773): Add support for the Cowon S9, based on the information from http://iaudiophile.net/forums/showthread.php?t=36073
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11:44:57dfktlinuxstb - that's great. i guess the "watermark" guy will want to try it soon. :)
11:49:50dfktlinuxstb, do you have a binary of the new version?
11:50:14linuxstbdfkt: I'm just preparing a release now...
11:54:16CIA-5New commit by 03dave (r25774): Take version number from SVN, or via VERSION variable in Makefile - i.e. use "make VERSION=v1.0" to build with that version number.
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12:00:15linuxstbdfkt: A new release for Windows is (temporarily) available here - linuxstb.cream.org/rockbox/tcctool-win32.zip">http://linuxstb.cream.org/rockbox/tcctool-win32.zip - it will get moved to the download server as soon as I see an admin of that server here (and then I'll delete it from my site)
12:01:37dfktthank you very much, linuxstb
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12:12:08Tornehmm. i'm trying to decide how to add the "autocreate bookmarks only if bookmark file exists" feature from www.rockbox.org/tracker/task/6272">FS #6272, and I'm not sure what the setting value text should be
12:12:29Torne"if bookmark file exists" is what the patch currently uses, but i don't like that
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12:17:28Llorean"Only update"?
12:19:51Tornehmm
12:19:55Torne"if file has bookmarks"?
12:20:05Tornethough i guess technically bookmarks mostly apply to folders, not files..
12:23:11kugelonly update/refersh existing?
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12:49:40lovelessheya, there! I am looking for a tutoring hand with a portaplayer port. any arm devs around?
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12:55:37pixelmajust ask your question, maybe give more detail (which port etc.). Even when no dev is around currently who could answer it - the channel is logged and many stay connected and could read the question later
12:56:12pixelmaand possibly answer it... you need to be a bit patient though ;)
12:58:08n1sand we have several targets with other arm based SoC's...
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13:02:13linuxstbloveless: What player is this?
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13:08:17lovelesslinuxstb: pixelma: I am currently trying to wrap my head around the pp5020 platform and the original firmware/bootloader images of the e200. in parallel, I am looking into the pp6100 of the view which is the designated port target. I am currently in the advanced "is it doable?" phase, having started reversing both of the original firmware images and the original view bootloader. I feel this is the point where I counld use the hel
13:08:17lovelessp of an experienced rockbox/arm/portaplayer dev. :)
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13:09:18linuxstbloveless: So you're working on a port to the Sansa View?
13:09:36pixelmaisn't there some initial work by obo?
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13:10:05pixelmathough I believe he hit a brickwall somewhere and seems to have vanished since :\
13:11:00lovelesslinuxstb: my first goal is getting the i2c portion of the arm_code.c in the e200tool to play with the view. should require only minor modifications with PROC_ID handling and device control
13:11:04n1syeah, wasn't it in last years gsoc?
13:11:14*linuxstb is reading through this thread - http://forums.rockbox.org/index.php?topic=13562.0
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13:11:40linuxstbloveless: Why do you need that?
13:12:03n1sloveless: have you found any evidence that a similar mode exists in the view as in the sansas?
13:12:19n1swhere you can send code over usb and run it
13:13:11lovelesspixelma: the view stubs in rockbox trunk are attributed to Robert Keevil. haven't contacted him yet.
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13:13:54pixelmayes, obo in IRC but I haven't seen him in a long time
13:14:02lovelesslinuxstb: it's the fallback when flashing a faulty firmware lets you only get into manufacturing mode
13:15:50linuxstbloveless: Yes, but I don't think you need i2c now do you? i.e. for early development you can just use e200tool to upload and run your own code. i.e. replace "arm_code.c" with your own code.
13:15:54n1sah that's very useful
13:16:01pixelmalast logged in here over 5 months ago (doesn't mean he said something)
13:16:30lovelessn1s: from what i can tell its not a mode as such. there is a button combination to put the view into the mode where it accepts download of a rom image, but the current pp5020-specific code of the e200tool fails very early in the init at processor detection. the i2c code implemented there should be largely compatible except for the base address, perhaps.
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13:18:26lovelesslinuxstb: i am not sure i understand. i will have to look into the e200tool again to see how far it can currently access the view.
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13:19:38lovelesslinuxstb: the way i see it, flashing in manufacturing mode is implemented via i2c running in a minimal rom stub that is transferred via usb.
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13:19:58linuxstbloveless: The way e200tool works is that it firstly uploads an ARM binary (arm_code.c) using "USB boot mode". This code is specific to the older Sansas, and contains a USB driver that is then used to make a new connection to e200tool, where two-way communication happens.
13:20:08lovelesslinuxstb: but please correct me if i am wrong there
13:20:28linuxstbSo for testing your code, you simply need to use usb boot mode to upload your code. e200rpatcher does the same thing.
13:20:51linuxstbi.e. you can ignore most of the functionality of e200tool.
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13:22:25lovelesslinuxstb: so probably the USB code currently fails on view
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13:22:39linuxstbYes, but my point is that it doesn't matter.,
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13:23:52linuxstbi.e. at this stage, you want a safe way to run your code on your view. "USB boot mode" (aka manufacturing mode) is simply a way to load a binary into RAM via USB, and that's a feature of your Sansa's boot ROM. This code isn't flashed.
13:24:05lovelesslinuxstb: interesting. i am not too familiar with these processes. it's exactly why I am looking for some tutoring here. :)
13:24:57linuxstbIf I was you, I would ignore e200tool, and look at e200rpatcher.
13:25:24lovelessI am aware of the untouched boot rom, but from there my knowledge about the bootup goes fuzzy
13:25:45lovelessokay, let me look into that
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13:27:48lovelesslinuxstb: so your approch would be to come up with some testing code, push it via manufacturing mode, and see if, say, the led blinks etc.
13:27:51linuxstbe200rpatcher basically just uploads a binary in USB boot mode which is then executed. Currently, you need to compile e200rpatcher with that binary embedded into it, but you could modify it to read it from a file. That binary will be your test code.
13:28:00linuxstbloveless: Yes, exactly.
13:29:22linuxstbThe code e200rpatcher uploads is in bootloader/main-e200r-installer.c You compile it by selecting an "I"nstaller build for the e200r.
13:31:32lovelesslinuxstb: okay. i might still stick to my plan of getting i2c in the e200tool working just for getting some practise. ;) you could call me an ARM noob, I guess. although i read a great deal about the platform in general, but i lacked most of the pp specifics. got some idea about the memory layout.
13:32:21linuxstbloveless: I don't think I would do that - if you damage the boot rom, you've likely bricked your sansa...
13:33:38lovelessno, i don't intend to touch the bootloader. just the usb/i2c code that is uploaded into ram via usb.
13:35:23lovelessor am I missing something here?
13:35:34linuxstbOK, but in my opinion your time would be better spent on other things - you don't need that code at all...
13:36:19lovelessI am just looking at the e200rpatcher now. will need some time to feel at home there
13:37:54linuxstbloveless: The main function is do_patching() - which uploads the binary to your Sansa in manufacturing / USB boot mode. The binary e200rpatcher uploads is designed to modify (patch) a hidden part of the NAND disk, hence the name.
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13:43:47lovelessthis may be a dumb question, but what's the difference between the e200 and the e200r build target?
13:44:34linuxstbThere isn't an e200r "main build" - the e200 build is used for both. I think the only difference is the mi4 format for the bootloader build.
13:50:00lovelessokay
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14:06:00lovelessI just realized that I have been mixing up manufacturing and recovery mode. it's the recovery mode that puts the bootloader in usb mode, correct?
14:07:15kugelI don't think so
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14:08:34kugeldid anyone notice my libc-folder patch?
14:09:00S_a_i_n_tother than the sheer size of it? ;)
14:09:17linuxstbloveless: Recovery mode is a feature of the main bootloader (which is stored on the NAND disk), and exposes a 16MB RAM disk via USB mass-storage. Manufacturing mode is the "USB boot mode" which e200tool uses.
14:10:18lovelessright, that was it
14:11:33linuxstbkugel: I had a quick look. I only had two thoughts/questions - why did you need to change some printf sequences, and have you tested checkwps still compiles OK?
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14:12:45kugelthe system's *printf exposed some warnings. I haven't checked checkwps but I was about to do it right now
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14:13:21linuxstbAre you on a 32-bit or 64-bit host? Can you test both?
14:13:28CIA-5New commit by 03amiconn (r25775): Gigabeat S: Reduce stalling in the ARMv6 IDCT. Also save one instruction per loop, and fix comments. Speeds up fullscreen video decoding by about 5% ...
14:13:51kugelI'm on 64bit, I could test 32bit in a vm
14:14:43kugelbut I added/enabled the gcc feature that's responsible for it for our own sprintf (and it exposed warnings too) so a target build would be a 32bit build
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14:15:20linuxstbI thought we already used that? Or was it not being used everywhere?
14:15:55kugelwe didn't use it for sprintf, but panicf/splashf used it already
14:17:42kugelcheckwps seems fine
14:18:37kugelarchosav300 checkwps doesn't build correctly, but the error seems unrelated to my patch (and I'm not sure if it ever built properly)
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14:19:54linuxstbIt's not part of the automated builds (afaik), so you can forget it.
14:20:02linuxstbI doubt it works currently.
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14:20:12kugelops, wrong branch, checkwps isn't entirely fine
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14:32:02kugelwhy does our creat() doesn't have flags?
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14:32:57kugelsame for open()
14:34:19kugelI thought we aimed for posix compatibility
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14:36:33JdGordon1has anyone got crashes when the bootup database "commit databse" splasah shuld pop up?
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14:42:23S_a_i_n_tJdGordon1: I have no crashes using r25761, but from your statement in -community, I think I should negate that previous question?
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14:43:04S_a_i_n_tUm, anyway, FYI r25761 is fine (crashless on database init for me at least.)
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14:45:24kugelgrml
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14:59:04linuxstbkugel: Maybe the easiest solution is replacing any use of creat() with the equivalent open() - from the manpage, "creat() is equivalent to open() with flags equal to O_CREAT|O_WRONLY|O_TRUNC". mode appears to be optional for open(), but not for creat().
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15:00:56kugelbut the prototypes needs fixing too
15:01:23linuxstbThe prototypes for what?
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15:02:43gevaertskugel: I'm not entirely convinced that moving to the host's filesystem implementation directly is a good idea
15:02:49*S_a_i_n_t congratulates Blue_Dude on www.rockbox.org/tracker/task/11208">FS #11208, acessing the hotkey is still a little tricky (you seem to need some pretty precise timing to do so), but *setting* the hotkey is a million times easier on the iPods with the revised keymap than it is using current SVN. Good work.
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15:04:19kugelgevaerts: it's not necessary for the sim (changing back should be a few lines), but I do think it's a good idea for RaaA
15:04:30lovelesslinuxstdb: are there any functions in place in e200rpatcher and the bootloader to facilitate debugging info feedback over usb?
15:05:13linuxstbloveless: No. You would need to find other ways until you get the LCD working.
15:05:40kugelalso, I didn't change the filesystem handling of the sim. it's posix, not standard c. but the sim hacks around with wrapper macros anyway
15:06:51linuxstbkugel: I'm guessing gevaerts is referring to having an ability to obfuscate the filesystem in some way - e.g. hiding system directories from the Rockbox file browser.
15:06:57lovelesslinuxstb: well, I can think of gpio led morse code, but, well, ... ;)
15:07:01gevaertskugel: maybe. I suspect that for some targets we may have to have our own layer in between anyway
15:08:16kugellinuxstb: I didn't change that. the sim always used the host's filesystem api's, with wrapper calls that hide the complete FS except for the working dir
15:08:50linuxstbloveless: The first thing I would do is to upload some code that has a small delay loop and then reboots the device. You can vary that delay loop to give different feedback. This would confirm your code is running. After that, you can try other, more useful things.
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15:10:03kugelwhat I changed is that the system's headers are used, which simply clashes with our not really posix compilant functions
15:10:39gevaertsright
15:10:45linuxstbkugel: Are you intending to keep those "sim" wrappers for RaaA?
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15:10:52gevaertsAnd you can't really use some system headers...
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15:12:02kugelgevaerts: we can if we change the function prototypes to be posix compliant. I thought we wanted to be posix compliant in some areas, especially in areas we claim to be
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15:12:40kugellinuxstb: I'm not sure yet
15:12:55linuxstbIsn't creat() the only problem so far?
15:13:12kugelI thought using $HOME instead of $PWD as root would maybe work better
15:13:40kugellinuxstb: well, open lacks the ", ..." part, but the calls should fine
15:13:46gevaertskugel: I mean, technically it's not easy to use some stuff from /usr/include, and some stuff from elsewhere
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15:14:52gevaertskugel: don't forget that .rockbox needs to be findable too :)
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15:23:23linuxstbkugel: Yes, but that optional parameter to open() shouldn't affect anything should it?
15:23:34kugelno, I don't think so
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15:30:42kugelseems to work fine
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15:32:12linuxstbkugel: How did you deal with creat() ?
15:32:48kugelonly a #define to make it open() for testing purpose, running sed should be fine
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15:35:03linuxstbkugel: Another option would be to rename to something like file_create() so it doesn't clash with any POSIX implementation.
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15:39:15lovelesslinuxstb: do you know on what address the manufacturing mode loads the bootloader.bin? will it be mapped to 0? and can you confirm that the e200 has 8mb dram starting at 0x10000000?
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15:43:39linuxstbThe e200 has 32MB SDRAM, plus (I think) 96KB of fast IRAM. I forget the details of how they are mapped at boot time, but I think we remap things ourselves in the Rockbox startup code. Let me check.
15:44:14lovelesslinuxstb: yes, you remap dram to 0 later on
15:44:52linuxstbI would guess that usb boot mode uploads code to IRAM but let me check.
15:44:54lovelessthe e200tool asm_code is located to 0x40004000, iirc
15:45:07*kugel isn't sure how to proceed
15:45:08linuxstbThen yes, that's IRAM.
15:50:51kugel3 opens: 1) s/creat(file)/creat(file, 0)/, 2) s/creat(file)/open(file, O_WRONLY|O_CREAT|O_TRUNC)/, 3) s/creat/rb_creat/
15:50:58kugel3 options*
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15:52:07kugel(4: band aid: remove #include "file.h" and hope creat() is never going to be called from checkwps)
15:54:03lovelesslinuxstb: so, 0x10000000-0x12000000 is DRAM and 0x40000000-0x40018000 is IRAM
15:55:12linuxstbkugel: I don't think 1) would work - that would create files with no (zero) permissions. So you would need to use a proper value. Which I think is why it wasn't added (I remember a discussion about this issue with creat() not too long ago).
15:56:39linuxstbI think 3) is probably the cleanest option. I don't like the name "rb_creat()" though...
15:57:14linuxstbloveless: Yes, I think so. With 0x0 being the NOR flash initially (IIRC).
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15:58:18lovelesslinuxstb: I can't find any pp-specific defintition, just firmware/target/arm/sandisk/app.lds:#define IRAMSIZE 0xc000 ... that's 48k IRAM
15:58:51linuxstbSee boot.lds in the same directory - that's the linker file for the bootloader (and the e200rpatcher "installer" application).
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16:01:04kugellinuxstb: how about create()? it's free :)
16:01:24linuxstbMy suggested name earlier was file_create(). I still like it ;)
16:03:08lovelesslinuxstb: yes, flash should be mapped to 0. that's where the IVT of the original firmware has to land
16:03:12kugelheh, our creat() used to be create(file, flags) (flags as in O_RDONLY, not permission modes)
16:03:44lovelesslinuxstb: btw, do you know the flash size?
16:03:54linuxstbkugel: Ah, that's probably what caused the discussion I remember. So the conclusion then was to remove the flags parameter completely.
16:04:29lovelesslinuxstb: it can't have all 2gb mapped there at init time
16:04:43linuxstbloveless: I'm not sure the e200 even has NOR flash... I've only worked with the ipods, which have either 512KB or 1MB of NOR flash.
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16:05:11lovelesslinuxstb: okay, so only the nor is mapped down there... kay
16:05:31linuxstbloveless: This is "NOR" flash - which is memory mapped. You're confusing it with the NAND flash, which is read like a disk (one 512-byte sector at a time).
16:05:31lovelesslinuxstd: the nand should go over the controller
16:05:46kugellinuxstb: yep (/me's reading the logs right now)
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16:08:32kugellinuxstb: ok, I'll go for 3)
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16:14:45kugellinuxstb: how about fdcreat(e)? we also have some custom fdprintf
16:17:49kugelbtw, our mkdir has the same issue, but it expands to non-posix functions due to dircache
16:21:52Buschelsaratoga: in libmad's synth.c both several of the arm macros can be removed. PROD_ODD_A/_O(a,b,c,d) can be replaced with PROD_EVEN_A/_O(a,b,c,d+1). PROD_EVEBACK_A/_O and PROD_ODDBACK_A/_O are not use at all.
16:22:09Buschelsaratoga: only PROD_EVEN_A/_O is needed.
16:22:30BuschelI'll test and commit this clean-up later today
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16:39:54amiconnkugel: Our creat() and open() used to have flags, but that was removed
16:41:23amiconns/flags/umode/
16:41:57amiconnIt makes no sense to keep a parameter that does absolutely nothing in rockbox. It only costs binsize
16:42:14kugelwell, wasn't it flags actually? I saw in the logs that people used to call it with O_WRONLY
16:43:06amiconnFlags do exist
16:43:39kugelnot for creat()
16:43:43amiconncreat(9 has no flags in posix either, 'cause it wouldn't make sense
16:49:48kugelnot having mode decreases portability. but that wasn't much of an issue until now
16:50:54amiconnYes, but having it costs binsize for no gain
16:51:25amiconnYou could #define things for portability. It's not that you could port a posix app to rockbox without changes anyway...
16:51:59kugelI don't want to port a posix app to rockbox, but rockbox to a posix system ;)
16:52:56Bagderit'd be easy to have the rockbox version be #define open(x,y,z) rockbox_open(x,y)
16:53:36kugelyes, unfortunately it's the other way around
16:53:54Bagderthat's easy too, as then you'll just have a wrapper function
16:55:14CIA-5New commit by 03amiconn (r25776): Improve motion compensation for ARM: * Use less registers in the simple copy routines -> less stack usage. * Save a few instructions in constants + ...
16:56:11kugelso you're saying I should rather add 0666 to every creat() call, and do a #define open(a,b,c) rockbox_open(a,b) instead of replacing all creat() calls with file_create()?
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16:57:35BagderI haven't given it enough thought to say which way I prefer really...
16:58:23kugelI have done the second, but I don't feel strong about it. I'd rather keep some sort of posix compliance though
17:00
17:03:52kugelhm, the more I think about it the more I prefer the s/creat(file)/creat(file, 0666)/ way
17:04:27kugel(though I'd use 0664 instead)
17:05:21gevaertskugel: no reason. This is still passed through umask
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17:06:36kugelI think 0664 is more appropriate, why depend on some extra mechanism to make it to 0664 for us?
17:06:55Bagderextra? that's just how it works!
17:07:11gevaertsbecause (a) we don't know what the user wants, and (b) the extra mechanism is always there
17:07:34Bagderthe whole point of umask is to allow the user to decide the rights
17:08:44Torneindeed, umask is not optional. 0664 is wrong on some systems as well :)
17:08:50linuxstbkugel: There aren't that many calls to creat() in the core anyway - most are in plugins. So the binsize impact shouldn't be much. But if we use a mode for creat(), shouldn't we also be doing it with any calls to open that create a file - there are quite a few of those...
17:10:19FlynDicefunman: (logs) http://pastie.org/942447 I've taken your PIO patch and modified it to use the same transfer mechanics that the linux patch uses for PIO. I adjusted most units to bytes vs words except a conversion to words happens just befor the actual transfer.
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17:12:09FlynDicefunman: I get a DTO but there are still bytes left. With rx watermark at 20 there are 84 left but if I change to 80 only 24.
17:12:16amiconnlinuxstb: When umode was removed, it saved quite some binsize
17:12:43amiconnEven if the function just ignores the argument, each call has to pass it
17:12:44kugelthe mode would be removed through #defines
17:14:36amiconn#defines are clever, but at the same time they are problematic
17:15:05amiconnWe have a lot of things which may clash on some systems
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17:15:43amiconnE.g. you can't build a sim on opensolaris because inttypes somehow clash with the native inttypes
17:15:45gevaertskugel: you could also define the other way for RaaA
17:16:09amiconnI tried fixing that by always using native inttypes for sims - but then wavpack doesn't compile on linux...
17:16:09gevaerts#define creat(x) creat(x,666)
17:16:25amiconn0666
17:16:28gevaertsright
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17:36:14kugelgevaerts: no that doesn't work well
17:36:31kugelthe creat() prototype is different which gives warnings
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17:37:39*gevaerts keeps forgetting about the headers
17:38:08kugelamiconn: everything builds fine with native inttypes here (i.e. using sys/types.h)
17:38:33kugelwavpack doesn't compile because it does some very stupid "unsigned int32_t", but there were just a few, so easy to fix
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17:44:29linuxstbkugel: Would it make sense to commit some of these small fixes (e.g. removing unsigned int32_t) as you find them?
17:45:23kugelthat was basically the only thing that'd make sense to commit separately
17:45:44CIA-5New commit by 03Buschel (r25777): Refacturate arm version of libmad's synthesis filter. Only two asm macros left, renamed asm-implementation for better clarity. No change in speed or ...
17:46:06kugel"refacturate"?
17:48:17*Buschel hides away
17:48:31Buschelrefactor...
17:48:54*Buschel better uses his dictionary before submitting
17:50:09Buschelsomebody should commit something to move this from the front page :o)
17:53:25linuxstbkugel: Looking at your patch on flyspray, there are a few places where you've replaced sys/types.h with inttypes.h, but inttypes.h was already being included. i.e. you're including it twice.
17:56:04linuxstbkugel: But why are you doing that change anyway? Isn't sys/types.h required for things like size_t, off_t etc?
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17:56:36CIA-5New commit by 03mt (r25778): Fix intdentation apps/codecs/libwma/asf.h, no functional changes.
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18:00:36kugellinuxstb: as I understood things we generally use (our) inttypes.h for these things
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18:01:33linuxstbMy understanding was that inttypes is just the int32_t etc types.
18:02:06linuxstbThese are normally defined in stdint.h, which is always included by inttypes.h
18:03:00linuxstbLooking at my (Linux) inttypes.h, it also contains some useful-looking macros for dealing with those ints (e.g. in printf)
18:03:05kugelstatements like "<linuxstb> wincent: In Rockbox, it's inttypes.h" make me thing that
18:03:10kugelthink*
18:03:35linuxstbkugel: What was that in response to?
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18:05:00kugel"<wincent> linuxstb: What about stdint.h ?"
18:06:03linuxstbYes, but that's not about sys/types.h - IIUC, you're replacing that with inttypes.h ?
18:06:59kugelI don't see what type the talk was about exactly
18:07:18kugellinuxstb: yes, but for the sim inttypes.h includes sys/types.h
18:07:49linuxstbThe Rockbox one? If so, then I think that's wrong. My Linux inttypes.h doesn't do that.
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18:08:21kugelI don't get the difference between all these too, but I do know that our versions somehow inttypes clashed with system's headers
18:08:54linuxstbI'm just looking at my Linux versions to see what they are doing. I think Rockbox should be similar.
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18:09:05kugelI didn't make it match the system's inttypes.h, I simply made it defining all int-derived types you'd want
18:09:12linuxstbinttypes/stdint seem to be defined by C99.
18:09:33saratogaanyone object to putting up an official fuzev2 bootloader now?
18:09:35linuxstbsys/types.h is something different.
18:09:38saratogawe have one for the clipv2
18:10:23kugelmy sys/types.h defines (u)intN_t, and is included by stdint.h
18:10:30linuxstbsaratoga: If it works (i.e. safely dual-boots), then go for it. Don't forget to build it with a real versoin number and tag in svn though.
18:10:40linuxstbkugel: What is "my" ?
18:11:02kugelthe files on my system
18:11:12linuxstbYes, but what is your system?
18:11:19kugelmy inttypes.h includes stdint.h, so at the end it all comes from sys/types.h
18:11:30kugelubuntu 10.04
18:12:21linuxstbSo just to be clear, in Ubuntu, sys/types.h includes inttypes.h, and inttypes.h includes stdint.h ?
18:13:03kugelinttypes.h includes stdint.h, which includes sys/types.h
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18:13:34saratogais "v1.0" an ok version?
18:13:56linuxstbsaratoga: Perfect - I think that's exactly what others use.
18:14:08kugelI don't see why we need released bootloaders for unusable targets, but well..
18:14:34kugelthe clipv2 once was unstable which is why it has one
18:15:00saratogaso that people don't use random bootloaders they find on the internet
18:15:20kugelrandom as in the ones funman regularly posts on abi?
18:15:36saratogadid he post a bootloader?
18:15:40kugelpeople shouldn't be using rockbox on the fuzev2 at all, so I don't care what bootloders they use
18:15:59linuxstbkugel: OK, but on my Debian unstable system, stdint.h doesn't include sys/types.h. So I don't think you can assume that everywhere. C99 _does_ specify that inttypes.h includes stdint.h though.
18:16:04kugelreleasing a bootloader somehow implies for me that we're doing support for it
18:16:44kugelso it was technically correct to replace sys/types.h with inttypes.h, wasn't it?
18:16:57linuxstbkugel: No - that's what I'm trying to say.
18:17:14linuxstbWell, it depends _why_ that file was using sys/types.h
18:17:28linuxstbIf it's for size_t, off_t etc, then it needs to stay.
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18:17:47kugelsize_t is also defined in string.h
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18:18:50linuxstbkugel: I don't see the harm in releasing a bootloader early - it's one of the required steps on the way to making a target unusable. A target isn't supported until we say so on the front page.
18:19:29kugel"on the way to making a target unusable"? :)
18:19:47linuxstbs/unusable/unstable/ ;)
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18:20:49amiconnkugel: Maybe it's actually the same problem here. Didn't investigate further because opensolaris is kinda slow anyway
18:21:05*amiconn probably needs to fix the mmx asm to not use .rept though :\\
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18:21:22amiconnThe native assembler on osx (yuck!) doesn't like it
18:21:30linuxstbkugel: The reference I always use to find out which includes are needed for a specific function are the linux manpages. So for example, the lseek manpage says I need sys/types.h (presumably for off_t).
18:23:08linuxstbkugel: Conclusion: It's not simple ;)
18:23:12amiconnUsing cpp macros instead should be possible, but will be fugly compared to .rept ....
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18:24:54kugellinuxstb: right...a single simple inttypes.h sounded so appealing :(
18:32:07CIA-5New commit by 03Buschel (r25779): Fix a bug introduced with r25777.
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18:47:43funmanFlynDice: after INT_DTO I see: "trans crd bytcnt" = 512, so the full sector has been read; "trans fifo bytcnt" = 320 = 48 words; and 48 words left to be transferred
18:48:40mt2it seems to me that get_timestamp() in codecs/wma.c is asf-specific and independent of the stream's codec, right ?
18:48:41funmanand fifo count = 48 (bytes, not words)
18:49:33saratogamt2: correct
18:50:02saratogait just parses the header of an ASF packet and gives the time in the file
18:50:13saratogaunless wma pro changes asf, it should work
18:50:19saratogabut its only used for seeking anyway
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18:52:33funmanFlynDice: if i use (MCI_FIFO_COUNT >> 2) as loop condition and transfer every word, then I get down to 3 words left, and trans fifo bytcnt is up to 500 (12 bytes = 3 words)
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19:11:22funmanI don't get how the comment in linux apply : "if we have reached the end of the block we cn read a word and get 1 to 3 bytes" => that implies we would be transferring an odd amount of bytes
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19:15:41funmanif i transfer only 'fifoth' == 0x20 bytes at a time, then 96 bytes are left to be transferred, and there are 24 bytes in the fifo after INT_DTO
19:16:16lovelesslinuxstb: still there? how would I go about telling the e200 to reset? b 0 is not an option since the IVT is mapped somewhere else.
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19:16:55funmanloveless: look at system_reboot()
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19:17:13lovelessfunman: thanks!
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19:18:18lovelessfunman: I hope it works without system_init() running before
19:18:59funmanno idea i only know about the e200v2
19:19:11lovelessworks there?
19:19:25funmanyes
19:19:45CIA-5New commit by 03mt (r25780): - Factor out container specific code from apps/codecs/wma.c. ...
19:19:45lovelesshow are they different from the platform view?
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19:20:32funmancompletely
19:20:44funmanthey only share a compatible DAC
19:20:59lovelesswhat about memory layout?
19:22:21funmanmemory layout is not a DAC so it falls out in the 'completely different'
19:22:24*mt2 likes how the build table looks right now
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19:24:51kugelfunman: maybe the 3 left words are shifted away by the >> 2?
19:25:44funmanno
19:25:48lovelessfunman: works. nice. now out to find DEV_RS on the view
19:26:29funmankugel: the counter is in bytes but we can do bytes transfer only at the final tail of the transfer, which can't happen anyway
19:26:36*Bagder adds committer #91
19:26:45gevaerts\☺/
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19:26:54funmanbecause we transfer sectors which are multiple of 4 bytes
19:27:10lovelessfunman: works on the view, too. same address! neato :)
19:27:30funmankugel: i think the 3 words can't be transferred to the FIFO because of the fifo threshold higher than 3 words
19:27:52kugeldon't you transfer whole sectors at a time anyway?
19:28:03funmanbut then if i limit reads to the size of the fifo threshold i miss much more data
19:28:09funmanyes, so i don't get what's this linux code
19:28:25funmaneach sector is split in several transfers to/from the fifo though
19:28:34funmanloveless: ah you are working on sansa view ?
19:28:41funmanhave you found the work of obo ?
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19:28:46kugelis there some kind of FIFO_EMPTY vs FIFO_ALMOST_EMPTY irq bit as on the dbop?
19:28:54funmanthere is EMPTY & FULL
19:29:11kugelbut empty triggers to early?
19:29:19kugeltoo*
19:29:29funmanhm?
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19:30:08funmanwe don't check if it's empty
19:30:17kugeloh, ok
19:30:43CIA-5New commit by 03mt (r25781): Add the Rockbox GPL header to apps/codecs/libasf/asf.c and fix the one in apps/codecs/wma.c
19:30:53funmanwe can check : how much has been read from the card, hom much has been transferred to the fifo, how much is present in the fifo
19:31:07kugellinuxstb: ok, I'll go through the sys/types.h vs inttypes.h thing again
19:31:21kugelbut first I'll put up a separate patch to fix the creat() thing
19:32:24lovelessfunman: let's say I am trying to get a grip. I am rather n00bish to ARM/rockbox dev
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19:33:25lovelessfunman: started with disassembling both original firmwares and decided to turn to rockbox and see what's there for the view already
19:33:36CIA-5New commit by 03archivator (r25782): Add myself to COMMITERS
19:34:07archivatoryay! I still remember this svn stuff!
19:34:18archivatorAnyone using git-svn on a regular basis?
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19:35:32funmanyeah
19:35:41linuxstbarchivator: Welcome ;)
19:35:46SARBoundwell, I just installed Rockbox on my Sansa Fuze v1... it is nice!
19:35:51gevaertsarchivator: welcome!
19:36:08archivatorfunman: is there a way to compress multiple commits (say, an entire branch) into a single svn commit?
19:36:16archivatorgevaerts, linuxstb: thanks!
19:36:46funmanloveless: i assume you've read www.rockbox.org/wiki/SansaView">http://www.rockbox.org/wiki/SansaView and the forum thread ? obo has been working on the sansa view last year
19:37:07lovelessfunman: yes, I have
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19:37:24funmanarchivator: once you have your commits on master it should be as simple as 'git svn dcommit' (I don't use branches)
19:37:52funmanah sorry i misread, git svn dcommit will make separate commits
19:38:25funmanwhy making a single commit ? small commits are easier to check, at the expense of bissection being a bit more complex
19:39:03archivatorfunman: My trees are often "try X", "try Y", "revert X", "try Z", "revert Y" - the git equivalent of spam, really :)
19:39:31funmantry git rebase to squash commits
19:39:35mt2archivator: congrats ☺
19:39:36lovelessfunman: does obo still idle out around here? it seems the port had stalled. the view tree is full of stubs
19:39:40funmanloveless: nope :/
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19:40:26linuxstbkugel: What was the conclusion about creat() ?
19:41:29kugelnot sure, but personally like the idea of adding the mode param to the calls, and wrap it with a define so that it doesn't get through to the file_create() function
19:42:32funmanloveless: afaik he bricked one of his views, i don't know if he has others
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19:44:53lovelessfunman: ouch. seem he's fresh out of views.
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19:48:42kugelmeh, that's complicated with plugins
19:49:29linuxstbkugel: Yes, just using file_create() directly may be simpler... i.e. s/creat/file_create/. But I don't have any real opinion about which is "best"...
19:53:07kugelthe file I/O functions handling is already quite tricky right now
19:54:22linuxstbI was wondering if simply using file_open(), file_close() and file_create() everywhere could simplify all that.
19:55:00linuxstbBut then that wouldn't look that nice...
19:55:52kugelI don't really want to leave posix completely
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19:56:57amiconnWell rockbox is posix alike, but not posix compliant anyway
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20:01:06lovelessmeh, here comes my unfamiliarity with the build process... [build-e200rbootbin]$ make ... CC bootloader/main-e200r-installer.c ... {standard input}:96: Error: selected processor does not support `cpsid if'.
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20:01:54lovelesscompiles fine from system-pp502x.c in the dependecies :/
20:04:10lovelesswhat gcc options are required to get it to assemble cpsid?
20:04:23kugelok, how about this? a static inline creat() *with* the mode param. the core will optimize it away, plugins will have a try cost for the wrapper
20:04:23linuxstbloveless: Did you install the Rockbox toolchain? i.e. arm-elf-gcc using rockboxdev.sh ?
20:04:47kugels/try/tiny/
20:05:42gevaertskugel: don't you need a real function for the plugin api?
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20:06:12kugelgevaerts: yes, that's why static inline. the compiler generates a body once its address is taken
20:06:19gevaertsright
20:06:38kugelwe do the same thing with some other functions as well
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20:11:13lovelesslinuxstb: yes, that's what I did.
20:11:30lovelesslinuxstb: main-e200r-installer.c compiles just fine if I use system_reboot() that comes in via system-pp502x.c and it's respective includes and dependencies. but when I spell out the inner workings of system_reboot() directly in main-e200r-installer.c, the compiler bails out at assembling the cpsid mnemonic.
20:12:23lovelesslinuxstb: it's used for disabling the irqs.
20:12:24linuxstbloveless: Can you upload your main-e200r-installer.c somewhere? e.g. www.pastebin.com
20:12:39linuxstbAre you sure you're using the right system_reboot() ?
20:13:00*kugel fails at sed
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20:13:24lovelesslinuxstb: it should be this one, but I'll check.
20:14:19linuxstbloveless: Yes, system-pp502x.c should be right. So it's the disable_interrupt() function that's causing the problem? If so, then just comment it out, as interrupts shouldn't be enabled anyway (I think).
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20:17:22linuxstbloveless: But something looks wrong - the cpsid function is for a higher ARM version than the one in the PP chips. So it looks like the ARM_ARCH define isn't being set.
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20:18:13lovelesslinuxstb: yes, right. I was looking in the wrong #if branch for the preprocessor
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20:22:23kugelhttp://pastie.org/942639
20:27:04CIA-5New commit by 03mt (r25783): - Modify metadata/asf.c to use libasf. ...
20:29:40lovelesslinuxstb: sure enough, using the correct mnemonics solved the problem. gee, I'm so slow on this! :/
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20:36:39linuxstbmt2: You could probably have kept the svn history if you had used "svn cp" when splitting files...
20:38:14mt2linuxstb: to copy asf.h from libwma to libasf ?
20:38:53linuxstbYes, but also the main split of wma.c into wma.c and asf.c
20:40:35lovelesslinuxstb: fine, the view finally reboots on my own code. thanks! now on to the important things. ;)
20:40:48mt2linuxstb: hmm.. never really used it that way before.
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20:44:34mt2linuxstb: How would that work ? svn cp apps/codecs/wma.c apps/codecs/libasf/asf.c -> commit -> modify both files (add/remove necessary code) -> commit ?
20:45:21linuxstbI _think_ you can do both steps together.
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20:46:38amiconnYes, you can
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21:01:39CIA-5New commit by 03Buschel (r25784): Change naming of arm asm routines in libmad's synthesis to match their functionality.
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21:16:48CIA-5New commit by 03Buschel (r25785): Remove residual tabs in codec directory.
21:19:42linuxstbmt2: I don't think checking for _CODECLIB_H is the right thing in libasf/asf.h - I think you can use "#ifdef CODEC" (defined in apps/codecs/codecs.make) to see if the file is being compiled as a codec.
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21:22:57mt2linuxstb: okay, will change that..
21:24:18kugellinuxstb: i have a patch fo creat(), what should I do about open()? you said there are some files which use open to create files?
21:26:23linuxstbkugel: Yes, just grep for O_CREAT. I guess those could be changed to use creat if they are using the equivalent flags to creat()
21:26:50linuxstbBut I wouldn't say it's important. Personally, I prefer open(), as it's more explicit...
21:27:40*kugel wonders how horriby outdated firmware/test is
21:27:57linuxstbThat's the FAT driver testing code?
21:28:55kugelnot the slightest idea ;)
21:32:03kugelmaking open() posix compliant would probably have an impact
21:32:34kugelI think you can't inline variadic functions, as they mean passing parameters on the stack
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21:36:00archivatorJust so you know, the wiki's TinyMCE does not completely work in Chrome. Some things like Headings and indentation fail.
21:36:22CIA-5New commit by 03amiconn (r25786): Save a few instructions by better use of conditions.
21:38:13linuxstbkugel: Hmm, as the mode is only needed when O_CREAT is used, perhaps we should be using creat. Then (IIUC) we can stick with our two-parameter calls to open() everywhere else.
21:38:26CIA-5New commit by 03amiconn (r25787): Test more possible alignments in the Write & Verify test. Some ata drivers apply optimisations up to line size alignment.
21:38:39kugelwell, no, some call open with additional flags
21:38:49kugellike O_APPEND instead of O_TRUNC
21:39:01archivatorCan someone with a mic-equipped target please test www.rockbox.org/tracker/task/11219">FS #11219 ? I only got a confirmation from 1 person and I'd to confirm that it still works. :)
21:40:10linuxstbkugel: When also using O_CREAT?
21:41:22linuxstbkugel: I see the answer to that is "yes"... So no, that won't work.
21:42:16kugelwe can still ignore the mode in rockbox easily, but just changing it to be variadic has an impact
21:42:32kugel(an impact I don't really care about, but I guess amiconn does?)
21:45:20linuxstbWell, we should always try to be as efficient as we can. But if it causes complications, I would say it's up for discussion...
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21:48:49mt2linuxstb: Just tested, and it seems CODEC is defined for metadata parsers too ..
21:49:07linuxstbmt2: Strange...
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21:50:39linuxstbmt2: Are you sure? For example, libwavpack/wavpack.h uses #ifdef CODEC
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21:52:12linuxstbmt2: Also, looking at lib/codeclib.h, that defines the "ci" pointer. So it should be accessible in libasf/asf.c without needing to explicitly pass it as a parameter - if you #include codeclib.h
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22:02:32mt2linuxstb: I was wrong about the CODEC define ( misinterpretation of compiler warnings :( ) .. anyway, yes I'll just remove the extra codec_api parameter.
22:07:13CIA-5New commit by 03mt (r25788): Remove unnecessary parameter (struct codec_api* ci) passed to libasf functions, and consequently remove the no-longer needed #ifdef in ...
22:09:32*mt2 wishes he could manipulate svn keywords with git svn
22:09:40linuxstbmt2: You left the comment in asf.h....
22:10:31*mt2 slaps forehead - what a weird lack of focus today.
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22:13:22***Saving seen data "./dancer.seen"
22:13:29CIA-5New commit by 03mt (r25789): missed a comment
22:14:21*kugel is too tired to fix all these open calls :'(
22:16:02linuxstbBagder: Could you move linuxstb.cream.org/rockbox/tcctool-win32.zip">http://linuxstb.cream.org/rockbox/tcctool-win32.zip to the download server (utils//tcctool/) ? I think it's fine to delete the existing files there.
22:22:55archivatorbluebrother: have you looked into concurrent voicing for Mac OS X?
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22:30:45CIA-5New commit by 03archivator (r25790): FFT plugin: eliminate 64-bit math. This should result in faster and probably more accurate calculations.
22:31:57bluebrotherarchivator: no, not yet. Will give it a look now (finally some time to look into Rockbox related stuff this weekend)
22:32:42CIA-5New commit by 03archivator (r25791): FFT plugin: The 64-bit sqrt function is no longer needed
22:33:24archivatorbluebrother: no worries, do keep me informed. :)
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22:39:14archivatorShould I post test builds for www.rockbox.org/tracker/task/11219">FS #11219 or just commit it and hope for the best?
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22:40:30gevaertsarchivator: it can't cause things to stop working, right?
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22:40:54archivatorgevaerts: well, no. It only touches plugins/fft
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22:43:01bluebrotheranyone else haven issues with unzipping in Rockbox Utility? Something with the cache seems to behave strangely, but I'm wondering if I've messed something up on my dev machine
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22:56:57bluebrotherarchivator: commented on www.rockbox.org/tracker/task/11160">FS #11160
22:58:13linuxstbmt2: I'm just looking at your libwmapro files - was it really ffmpeg r228866 (in README.rockbox) ?
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22:59:12archivatorbluebrother: awesome. I'll try it out in a few minutes to make sure all the linux engines still work..
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23:00:45bluebrotherI've only changed one line compared to the 05 patch, so at least my changes won't make a difference for linux :)
23:01:08bluebrotherI hope to get around having a more detailed look in the code later.
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23:05:26arlaneenalraI'm considering looking into rockbox on a fuze v2 and ran into an odd, to me at least, issue. I'm getting 'uses FPA instructions whereas .... does not'
23:05:48arlaneenalraI'm pretty sure I'm missing some little flag in here somewhere . . .
23:06:20gevaertsAre you using the right compiler, in a clean directory?
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23:07:47arlaneenalrajust pulled down the source and rebuilt an s1 gcc with crossdev (it is 4.2.4, if that's the issue I'll have to fight with 4.0.4)
23:08:04Luca_Sarlaneenalra: if you're using the vmware image, you need to relaunch the ./rockboxdev.sh script
23:08:20Luca_SI had the same error and running that script fixed it
23:08:25linuxstbThat's probably the problem then. You need to enable the correct multilibs - see the tools/rockboxdev.sh script
23:08:50kugelha! I can make open() work without big hit
23:09:12kugelbut it needs even more hackery around the file IO functions for the codec/plugin api
23:10:47mtlinuxstb: that's 22886. ( I know .. :( )
23:10:56linuxstbmt: No problem ;)
23:11:00arlaneenalraLuca_S: I'm not running the vmware image . . .
23:11:24archivatorbluebrother: works as expected with both TTSExes and Festival.
23:11:24gevaertsarlaneenalra: we provide a script to build crosscompilers for a reason :)
23:11:34bluebrotherarchivator: nice :)
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23:33:28kugelis it safe to just ignore variable parameters?
23:33:55kugeli.e. open_wrapper(a, b, ...) { file_open(a,b); }?
23:38:24kugelok, assuming it is, I have a patch to fix open() as well
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23:48:14kugelheh, that's everything quite hackish but I hope that keeps the binsize crowd quiet
23:52:45kugelpatch at fs#11234, I probably commit tomorrow if nobody objects/makes a comment on the tracker.
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