| 00:02:22 | kugel | Strife89: oh, a patch to move some C standard library into a separate subdir, so that OS libraries can be used instead of our own |
| 00:08:29 | kugel | strpcasecmp == strcasecmp? |
| 00:09:17 | | Join ollebe [0] (~olle@root.rot.sgsnet.se) |
| 00:10:02 | pamaury | kugel: 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) |
| 00:11:21 | Bagder | kugel: yes strpcasecmp seems to be a locally implemented strcasecmp |
| 00:11:35 | kugel | well, 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 |
| 00:12:26 | Bagder | ... 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) |
| 00:27:24 | RandomInsano | So, 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) |
| 00:29:32 | RandomInsano | My telechips CPU is a newer version of the 77X series from what I've compared in the spec sheets, with the IO addresses on the 8200 being remapped so many bits higher (0x80003020 for port C instead of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) |
| 00:31:49 | Blue_Dude | I am really bummed with SDL Audio right now. |
| 00:32:21 | Blue_Dude | I want it to ... behave! |
| 00:32:58 | Blue_Dude | I 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) |
| 00:36:55 | JdGordon | Blue_Dude: crazy stuttering? |
| 00:37:06 | JdGordon | I tihnk thats the same issue I had which made me give up :/ |
| 00:37:20 | Blue_Dude | The 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.) |
| 00:38:11 | Blue_Dude | And it insists on creating a 44112 byte buffer no matter what you ask for. |
| 00:39:11 | Blue_Dude | It doesn't behave like a real DMA ISR callback so I'm kinda screwed. |
| 00:42:42 | Blue_Dude | All 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) |
| 00:43:43 | saratoga | Blue_Dude: did you ask the SDL people about it? |
| 00:44:18 | Blue_Dude | One 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. |
| 00:44:45 | saratoga | RandomInsano: are you sure you've got everything linked correctly for the new CPU? |
| 00:44:46 | Blue_Dude | saratoga: not yet. I spent a good part of the day away from the internet trying to get it to work. |
| 00:45:33 | Blue_Dude | And 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. :( |
| 00:46:41 | saratoga | hard to believe the SDL buffer sizes are hard coded |
| 00:46:41 | JdGordon | Blue_Dude: it is definitly worth doing, even if SDL needs special casing |
| 00:47:21 | Blue_Dude | I 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. |
| 00:47:49 | Blue_Dude | JdGordon: 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) |
| 00:49:05 | saratoga | Blue_Dude: don't people do games in SDL? how could a 1/4 or 1/8 second buffer be acceptable for all cases? |
| 00:49:10 | saratoga | there 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) |
| 00:49:26 | Chern | 'lo |
| 00:49:29 | * | Xqtftqx is listening to: Fort Minor - The Rising Tied - Remember The Name (feat. Styles Of Beyond) - (0:17/3:50) |
| 00:49:34 | Xqtftqx | Good song |
| 00:50:01 | AlexP | Xqtftqx: Please turn that off in here |
| 00:50:11 | Xqtftqx | y? |
| 00:50:22 | AlexP | This is an on-topic channel only |
| 00:50:31 | AlexP | We don't want to know what you are listening to |
| 00:50:39 | Xqtftqx | O, im sorry |
| 00:50:48 | Blue_Dude | Beats 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) |
| 00:51:01 | Xqtftqx | that better? |
| 00:51:08 | AlexP | Xqtftqx: Stop it now |
| 00:51:33 | Chern | Xqtftqx: stick by the rules mate |
| 00:51:53 | | Quit kisak_ (Quit: Lost terminal) |
| 00:53:35 | Xqtftqx | AlexP, what kind of songs do you like? Rockbox is for music players, so i believe its relevant |
| 00:53:41 | Mode | "#rockbox +o AlexP" by ChanServ (ChanServ@services.) |
| 00:53:55 | AlexP | Xqtftqx: Last warning. Stay on topic or leave (or be muted) |
| 00:54:28 | Chern | Xqtftqx: this is for development chat, not user preferences |
| 00:54:37 | AlexP | Chern: And support :) |
| 00:55:01 | Xqtftqx | Im sorry. |
| 00:57:06 | Chern | AlexP: that is a rather bad mix |
| 00:57:19 | AlexP | It seems to work quite well usually |
| 00:57:38 | AlexP | And it doesn't separate the devs from users which we don't want |
| 00:57:46 | saratoga | i've wanted different channels for a while since it makes skimming the logs a lot easier, but most people don't |
| 00:57:56 | Chern | aah, I guess that is alright for small developments |
| 00:57:57 | n00b81 | I don't see why not. |
| 00:58:13 | AlexP | One argument is that you end up having to read both anyway |
| 00:58:22 | AlexP | As quite often stuff moves between areas |
| 00:58:51 | Mode | "#rockbox -o AlexP" by ChanServ (ChanServ@services.) |
| 00:59:00 | Chern | so do you work for your own enjoyment? or do you slave for the users? |
| 00:59:01 | scorche | support topics often turn into development topics, so it makes going through logs harder as you would likely have to go back and forth |
| 00:59:46 | AlexP | Chern: Hard to speak for everyone, but principally for ourselves |
| 00:59:58 | Blue_Dude | devs are slaves to their own improvement requests. |
| 01:00 |
| 01:00:00 | AlexP | Chern: Of course we do care about users, but not as the be all and end all |
| 01:00:17 | AlexP | i.e. if users want something the devs don't, then the devs win :) |
| 01:00:51 | AlexP | And it depends on the person of course :) |
| 01:01:22 | Chern | Blue_Dude: you hold a strong opinion |
| 01:02:05 | Blue_Dude | Merely ironic commentary. Don't consider it too deeply. |
| 01:02:49 | Chern | I was thinking of porting rockbox to the Playstation Portable, has anyone attempted to do such a thing |
| 01:02:58 | AlexP | Nope :) |
| 01:03:12 | AlexP | It wouldn't make much sense as is IMO, you would want it as an app |
| 01:03:22 | Chern | well rockbox isn't an app, is it? |
| 01:03:27 | AlexP | Nope |
| 01:03:33 | AlexP | It is a complete firmware/OS |
| 01:03:41 | Chern | indeed |
| 01:03:42 | Blue_Dude | Rockbox is an operating system. |
| 01:03:48 | Chern | thats an OS |
| 01:04:10 | AlexP | Yeah, so using it as an OS wouldn't make much sense on the PSP IMO |
| 01:04:12 | saratoga | is there any reason to run rockbox as an app on the PSP though? |
| 01:04:20 | saratoga | it seems like a good firmware replacement target |
| 01:04:25 | Chern | indeed |
| 01:04:27 | AlexP | But e.g. the simulator runs on a PC as an app |
| 01:04:28 | saratoga | thats how those hacked media players on the gameboy work |
| 01:04:40 | AlexP | saratoga: Oh, as a dual boot? |
| 01:04:42 | saratoga | use the built in software as a bootloader basically |
| 01:04:53 | AlexP | I'm displaying my PSP ignorance here |
| 01:05:06 | saratoga | well that the DS not the PSP, but hardware wise they're not entirely different |
| 01:05:14 | Chern | yes they are |
| 01:05:17 | AlexP | I thought of it more as a platform, but I guess that isn't quite true |
| 01:05:25 | saratoga | unless you really want networking while you're playing music i'm not sure what the app option gets you |
| 01:05:37 | AlexP | yeah |
| 01:05:48 | saratoga | actually i've always wanted to do a nintendo DS port of rockbox, but never really had the time |
| 01:06:15 | Chern | well, I was hoping someone would have done it already |
| 01:06:37 | Chern | replaced the onboard firmware os thingy to the rockbox |
| 01:06:49 | Chern | faster loading times and more features |
| 01:07:35 | saratoga | http://sites.google.com/site/linuxonpspproject/ |
| 01:07:42 | saratoga | these guys have a tool chain and drivers for the PSP |
| 01:07:57 | n00b81 | That's not complete at all |
| 01:08:13 | n00b81 | Most of the drivers haven't been RE'd yet. |
| 01:08:36 | | Quit rbert (Ping timeout: 276 seconds) |
| 01:09:03 | Chern | driver? |
| 01:09:13 | kugel | so many warnings with when using the __attribute__((format)) feature of gcc :\ |
| 01:09:13 | | Nick bgs100 is now known as bgs000 (znc@unaffiliated/bgs100) |
| 01:09:21 | AlexP | Chern: to talk to the hardware |
| 01:10:08 | saratoga | whats missing? |
| 01:10:15 | Chern | drivers |
| 01:11:02 | saratoga | for what? |
| 01:11:12 | * | AlexP seems to be constantly misunderstanding Chern |
| 01:11:34 | AlexP | Chern: I thought you must be non-English first language and not know the word :P Sorry :) |
| 01:11:54 | Chern | Yeah sorry |
| 01:11:57 | Chern | I'm Scottish |
| 01:12:09 | AlexP | Nearly as bad :) |
| 01:12:21 | scorche | well, "driver" is more of a technical term than and English word |
| 01:12:35 | AlexP | Depends on the language |
| 01:12:42 | AlexP | It is often translated |
| 01:12:52 | AlexP | But yes, I would expect most people to know it |
| 01:13:07 | Chern | we are taught that a driver is a car operator |
| 01:13:49 | AlexP | Anyway, we are creeping off-topic |
| 01:14:17 | Chern | yes, shouldn't probably do that |
| 01:14:22 | Blue_Dude | Aw, what the bloody hell? |
| 01:14:32 | Blue_Dude | Why are we *mixing* in SDL audio? |
| 01:14:45 | Chern | is there a MIPS port of rockbox existing? |
| 01:15:02 | AlexP | It 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) |
| 01:15:15 | AlexP | but there is more to it than the arch |
| 01:15:16 | n00b81 | Chern: such as the gigbeat |
| 01:15:23 | AlexP | gigabeat is ARM |
| 01:15:32 | n00b81 | uggh :P |
| 01:15:33 | Chern | AlexP: I realise this |
| 01:15:48 | AlexP | sure :) |
| 01:15:54 | | Nick bgs000 is now known as bgs100 (znc@unaffiliated/bgs100) |
| 01:16:13 | n00b81 | AlexP: but it makes starting the port a bit easier ;-) |
| 01:16:46 | saratoga | what? |
| 01:16:55 | Chern | the hardest part would be breaking the chain of trust in the system |
| 01:17:22 | saratoga | i think thats already done |
| 01:17:32 | saratoga | as evidenced by the linux port |
| 01:17:38 | Chern | from boot |
| 01:17:57 | n00b81 | The linux port is an app. |
| 01:18:08 | Chern | there is the existing flaw in which they initialize a checksum with a value of 0 in the IPL page |
| 01:18:09 | n00b81 | That just runs via a custom firmware environment. |
| 01:18:49 | | Join Silverwolf [0] (~richard@d149-67-106-191.col.wideopenwest.com) |
| 01:19:05 | Chern | does rockbox make use of a MMU? |
| 01:19:31 | saratoga | Chern: no |
| 01:19:38 | saratoga | n00b81: what does that mean? |
| 01:19:44 | Chern | thats good, as there isn't one |
| 01:19:55 | kugel | Blue_Dude: you could try my alsa pcm driver shows the same behavior |
| 01:20:05 | | Quit Silverwolf (Client Quit) |
| 01:20:17 | Blue_Dude | alsa? |
| 01:20:22 | | Quit geertvdijk (Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100401080539]) |
| 01:20:32 | Chern | saratoga: it's a boot controlled via hybrid or C-IPL firmware |
| 01:20:42 | Chern | removes DRM for unsigned code |
| 01:20:49 | kugel | kugel-rb.git/shortlog/refs/heads/alsa-sim">http://repo.or.cz/w/kugel-rb.git/shortlog/refs/heads/alsa-sim |
| 01:21:41 | Blue_Dude | What is it? |
| 01:22:04 | kugel | hm, forget it, I don't think alsa is going to work on cygwin |
| 01:22:04 | Chern | Is there a list of what rockbox requires hardware wise? |
| 01:22:19 | Chern | or can someone give me a rough idea |
| 01:22:28 | saratoga | Chern: couple dozen MHz, couple MB of RAM, storage space for music |
| 01:23:04 | Chern | anything more specific? |
| 01:23:10 | saratoga | nothing else comes to mind |
| 01:23:19 | saratoga | i guess a compiler if you want to be able to write code |
| 01:23:23 | Blue_Dude | kugel: I just need a real devel enviroment. :( |
| 01:23:24 | Chern | what about a speaker? |
| 01:23:27 | saratoga | but thats kind of obvious |
| 01:23:36 | saratoga | i don't think any rockbox devices have a speaker, so no |
| 01:23:53 | kugel | some ondas have a speaker and it's enabled |
| 01:24:11 | | Quit Unhelpful (Remote host closed the connection) |
| 01:24:12 | Chern | aah |
| 01:24:20 | Chern | so rockbox is only for small machines? |
| 01:24:37 | saratoga | yes, you may want to look at our front page if you haven't . . . |
| 01:24:43 | saratoga | we're a firmware for mp3 players |
| 01:25:02 | Chern | aah, 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) |
| 01:32:45 | | Quit Unhelpful (Changing host) |
| 01:32:45 | | Join Unhelpful [0] (~quassel@rockbox/developer/Unhelpful) |
| 01:34:03 | | Quit n00b81 (Ping timeout: 252 seconds) |
| 01:35:42 | ollebe | turns out i was wrong about the storage in E10 |
| 01:35:59 | ollebe | if anyone is interested, the SoC has 8 Mbit of NOR flash |
| 01:36:16 | saratoga | thats just ROM, it won't really matter for rockbox |
| 01:36:41 | ollebe | how can you be so sure? |
| 01:37:04 | saratoga | what use would we have for memory we probably can't write to and is too small to store anything we would want to write? |
| 01:37:49 | saratoga | maybe 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 |
| 01:37:58 | ollebe | i'm trying to figure out the original firmware, and I think an additional 8mbit of flash is relevant |
| 01:38:28 | ollebe | the firmware has to be stored somewhere, and this is one place where a part of the firmware might reside |
| 01:38:46 | saratoga | its probably just their bootloader |
| 01:38:58 | saratoga | 1MB is too small for firmware on typical players |
| 01:40:21 | linuxstb | saratoga: 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). |
| 01:42:20 | saratoga | i didn't say none did it, just that most don't |
| 01:42:51 | * | ollebe goes back to the disassembler |
| 01:44:09 | kugel | arghhhh |
| 01:44:10 | saratoga | how does installing work on the hx00? |
| 01:44:45 | linuxstb | Our bootloader is merged with an OF upgrade file, and then the OF is used to flash it to NOR. |
| 01:45:05 | saratoga | ah so like the sansas |
| 01:45:24 | * | Blue_Dude beats head against SDL code. Cries. |
| 01:45:32 | tmzt_ | kugel: alsa won't, but you can maybe use alsalib with win32 pcm output, though I don't know why |
| 01:45:38 | linuxstb | saratoga: Which ones? |
| 01:45:55 | saratoga | AMS at least, PP too I think |
| 01:46:12 | saratoga | although its technically a NAND flash chip it goes on |
| 01:46:22 | | Quit JohannesSM64 (Quit: WeeChat 0.3.2-dev) |
| 01:46:24 | saratoga | since NOR isn't so popular anymore |
| 01:48:01 | | Nick fxb is now known as fxb__ (~felixbrun@h1252615.stratoserver.net) |
| 01:48:59 | linuxstb | Yes, 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. |
| 01:51:08 | saratoga | oh ok |
| 01:51:42 | saratoga | why does friendlyzookeeper have 76 of his 81 posts deleted |
| 01:52:32 | Blue_Dude | Oh FFS. is SDL just hosed in Cygwin or does anybody else have this problem?! |
| 01:53:12 | Blue_Dude | You'd think the SDL.dll would work the same as the lib, right? |
| 01:53:58 | saratoga | RandomInsano: just because it links doesn't mean any of the addresses are correct |
| 01:54:19 | saratoga | are you sure you've actually put your code into system RAM where the system will execute it? |
| 02:00 |
| 02:01:03 | Blue_Dude | OK, I'm done. Anyone know how to get hold of the SDL guys? I'm totally stuck. |
| 02:01:50 | Blue_Dude | Are we working with anyone there? |
| 02:03:06 | saratoga | i don't think so |
| 02:03:13 | saratoga | but presumably they have a mailing list or an IRC channel |
| 02:03:18 | | Join GeekShadow [0] (~Antoine@reactos/tester/GeekShadow) |
| 02:03:28 | saratoga | its a pretty widely used package |
| 02:04:16 | RandomInsano | saratoga: I have no idea. TCC77X RAM location is exactly the same as the TCC8200 |
| 02:04:39 | RandomInsano | I don't actually know how rockbox does anything really. |
| 02:04:39 | saratoga | you should probably compare to the OF and check then |
| 02:05:08 | RandomInsano | I can barely read assembler. It's inital jump is in the 0x20000000 address space. |
| 02:05:39 | RandomInsano | The datasheet confirms where system RAM starts by defaly |
| 02:05:41 | RandomInsano | *t |
| 02:06:16 | | Join Rob2223 [0] (~Miranda@p4FDCB2FD.dip.t-dialin.net) |
| 02:06:23 | | Quit petur (Quit: Zzzzz) |
| 02:06:28 | saratoga | i wouldn't trust the datasheet 100%, nor would I assume that the rockbox binary has been made correctly |
| 02:06:33 | saratoga | either could be wrong |
| 02:06:58 | saratoga | alternatively, you could try patching the OF with your code to verify that the GPIO pins work the way you think they do |
| 02:07:03 | RandomInsano | Then here's the fun problem: how do I find out? |
| 02:07:38 | RandomInsano | How can I patch the original firmware? Plunk some compiled assembler then change the original telechips jump call? |
| 02:07:45 | saratoga | yeah |
| 02:07:58 | linuxstb | RandomInsano: 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... |
| 02:08:05 | RandomInsano | That'll be fun to figure out... Any docs to guide me? |
| 02:08:35 | RandomInsano | linuxstb: What's the default on your telechips port |
| 02:09:02 | linuxstb | The source is the documentation... I'm just looking now. |
| 02:09:10 | RandomInsano | And how can I find out the differences? There isn't a lot of documentation on how everything bulds and compiles |
| 02:09:37 | Blue_Dude | Sigh. 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) |
| 02:10:50 | RandomInsano | All 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. |
| 02:10:59 | linuxstb | RandomInsano: 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. |
| 02:11:04 | kugel | soo, I finished my work so far |
| 02:11:12 | kugel | does anyone want to have a look? |
| 02:11:13 | RandomInsano | Oooooh. Well, that sucks. |
| 02:11:15 | linuxstb | RandomInsano: The main telechips code is in firmware/target/arm/tcc77x/ |
| 02:11:52 | RandomInsano | I've edited the defines to point to the right hardware address for my chip in... tcc77x.h |
| 02:11:56 | linuxstb | RandomInsano: The very first code that is run is crt0.S - you should start by reading that. |
| 02:12:09 | | Quit DataGhost () |
| 02:12:11 | kugel | make sim use host C library: http://pastie.org/942001 |
| 02:12:24 | Blue_Dude | I'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. |
| 02:12:28 | RandomInsano | I mucked with that a little as well. Can I write my ASM code in there then? |
| 02:12:49 | RandomInsano | I'll throw in an infinite loop and stuff. Writing assembler for me is a lot easier than reading it :P |
| 02:12:51 | Blue_Dude | What a royal pain. I'm off. |
| 02:12:56 | *** | Saving seen data "./dancer.seen" |
| 02:13:00 | Blue_Dude | Back Monday! |
| 02:13:37 | | Quit Blue_Dude (Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100401080539]) |
| 02:13:49 | linuxstb | RandomInsano: 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 |
| 02:14:13 | RandomInsano | Undefine it? That's counterintuitive :S |
| 02:14:24 | RandomInsano | But I'll give that a shot |
| 02:14:36 | RandomInsano | I 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) |
| 02:15:32 | linuxstb | RandomInsano: 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) |
| 02:32:52 | CIA-5 | New commit by wincent (r25769): pdbox: Fixed loading of sound files, pdpod_drums.pd works now. |
| 02:33:38 | * | linuxstb does a double-take... |
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| 02:54:03 | kugel | saratoga: can I close your raaa task or should I put my work into that one? |
| 02:54:11 | saratoga | kugel: just close mine |
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| 03:00:32 | Strife89 | I must have missed something. pdbox? |
| 03:04:56 | saratoga | last years soc project |
| 03:05:27 | wincent | :-) |
| 03:07:31 | wincent | At last, after a months-long bug hunting session. |
| 03:13:32 | kugel | www.rockbox.org/tracker/task/11234">http://www.rockbox.org/tracker/task/11234 |
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| 03:23:51 | ollebe | it's a bit funny that iriver seems to link files from kernel.org's fdisk in this firmware |
| 03:24:29 | ollebe | i remember complaining via email a long time ago, since it should be a GPL violation |
| 03:25:10 | ollebe | the source file from fdisk seems to be GPLv1 |
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| 04:30:08 | CIA-5 | New commit by kugel (r25770): Fix wrong udelay logic that made it be way off. |
| 04:44:49 | CIA-5 | New commit by jethead71 (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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| 04:48:24 | saratoga | jhMikeS: the speed up on the F is due to the UNLIKELY macros? |
| 04:48:51 | saratoga | hmm no you added a lot of ARMv4 ASM too |
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| 04:55:14 | jhMikeS | saratoga: there was some gain from the macros. The new ASM seemed like most of it for < v6 |
| 04:55:40 | saratoga | whats the advantage of ARMv6? |
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| 04:58:57 | jhMikeS | getting things done in fewer instructins and taking advantage of piplining for sure |
| 04:59:24 | saratoga | i was wondering which of the instructions distinquish it from armv4? |
| 05:00 |
| 05:01:01 | jhMikeS | all those funny-looking :) multiplies, packs and saturates. lots of stuff. |
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| 05:08:55 | jhMikeS | saratoga: 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? :). |
| 05:09:10 | saratoga | jhMikeS: yes I had a feeling about that |
| 05:09:28 | saratoga | its probably written for ARM7TDMI where everything stalls anyway |
| 05:09:49 | saratoga | loads and muls need to be interleaved properly I guess? |
| 05:09:57 | jhMikeS | mults and loads have result latencies but can be one or two cycles throughput |
| 05:10:09 | jhMikeS | saratoga: indeed they do |
| 05:10:20 | saratoga | any interest in looking at it? |
| 05:10:25 | jhMikeS | even shifter operands, which count as early registers |
| 05:10:45 | jhMikeS | I was looking at it, noting its lack of commentary. :) |
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| 05:12:34 | saratoga | i also wonder if the filterbank really needs to accumulate into a 64 bit variable |
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| 05:15:13 | jhMikeS | I don't believe colfire does, nor can it anyway. Probably uneeded |
| 05:15:42 | jhMikeS | but, you have to if the adds would exceed 32 bits |
| 05:17:00 | jhMikeS | armv6 has 32x32->64 and truncate to MS 32 but older ARM doesn't |
| 05:19:11 | saratoga | so it would have to be a mul then a shift anyway? |
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| 05:21:03 | jhMikeS | yeah, older arm has no fractional instructions, which I momentarily forgot about. |
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| 07:23:23 | saratoga | does test codec still not work on the clipv2? |
| 07:27:11 | saratoga | jhMikeS: are there any restrictions on writing back to the same register you read on arm9/10/11 ? |
| 07:27:23 | saratoga | performance wise i mean |
| 07:30:55 | saratoga | oh good test_codec seems to be working again |
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| 07:33:58 | jhMikeS | saratoga: no, it's about early/late registers and interlocks between results |
| 07:34:00 | | Quit Horscht (Ping timeout: 252 seconds) |
| 07:34:57 | jhMikeS | it'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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| 07:37:37 | saratoga | i've got the docs, i'm just lazy and tired |
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| 07:37:56 | saratoga | jhMikeS: so basically, just don't use anything immediately after multiplying or loading it? |
| 07:38:10 | jhMikeS | ah, ok. with 920T it's just the memory loads that stall afaiu |
| 07:38:12 | saratoga | FWIW i've only got ARMv5 targets handy |
| 07:38:22 | saratoga | i think the multiplier does too |
| 07:38:46 | saratoga | at very least since its 2 cycles latency on a multiply, theres probably an extra stall if you try to use it immediately |
| 07:38:59 | jhMikeS | the shifter operands can stall too |
| 07:39:10 | jhMikeS | yes |
| 07:39:31 | jhMikeS | wait at least the result latency if possible |
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| 07:40:18 | jhMikeS | of 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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| 07:40:54 | saratoga | whats a late register? |
| 07:42:29 | jhMikeS | there'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. |
| 07:43:47 | jhMikeS | to clarify, it's specified on a per-instruction or operand type basis |
| 07:44:08 | saratoga | ah 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? |
| 07:44:13 | saratoga | err end of the cycle |
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| 07:49:11 | jhMikeS | that's how I understand it |
| 07:50:02 | saratoga | i'll try the easy things and see if it makes a difference |
| 07:51:14 | jhMikeS | just 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 |
| 07:51:43 | saratoga | it doesn't have a write buffer? |
| 07:51:53 | jhMikeS | like str r0, [r1]. mov r0, #0 can stall |
| 07:52:04 | jhMikeS | it does |
| 07:54:24 | saratoga | looks like it does speed things up a bit |
| 07:55:23 | saratoga | each smlal i reorder saves us about 10kHz realtime in synth.c :) |
| 07:55:36 | saratoga | on the clipv2 |
| 07:56:04 | jhMikeS | there's also flag cycle distance which I'm a bit confused about |
| 07:57:08 | jhMikeS | I 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 |
| 08:03:08 | | Quit xavieran (Ping timeout: 260 seconds) |
| 08:04:07 | saratoga | jhMikeS: which target? |
| 08:05:27 | jhMikeS | the 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. |
| 08:08:01 | saratoga | is 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 |
| 08:08:18 | jhMikeS | it should |
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| 08:14:48 | saratoga | if I do "ldmia %2!, {r0, r1, r2, r3}", is r0 available before the other registers? |
| 08:15:02 | jhMikeS | hmmm...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. |
| 08:15:10 | jhMikeS | saratoga: yes |
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| 08:17:19 | jhMikeS | saratoga: 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 |
| 08:18:10 | saratoga | wait PROD_ODDBACK_A is defined but never called |
| 08:18:14 | saratoga | why do we have this |
| 08:18:14 | jhMikeS | that's for ldmia rx, { r1-r7 } and not to pc. they don't seem to show it beyond 7 :\ |
| 08:18:20 | saratoga | i just spent a while rescheduling it |
| 08:18:40 | saratoga | jhMikeS: those are the cycles when they become available? |
| 08:18:51 | jhMikeS | yes, the result latency |
| 08:19:06 | saratoga | so the S has a 64 bit bus to L1? |
| 08:19:36 | jhMikeS | I don't know to be honest |
| 08:20:12 | saratoga | well if it can fetch two 32 bit words in one clock :) |
| 08:21:48 | jhMikeS | of course that makes sense. I've just never read it explicitly stated in a doc since I suppose it wasn't too relevant. :) |
| 08:23:13 | saratoga | huh www.rockbox.org/tracker/task/6705">FS #6705 already had the unused ASM code in it |
| 08:23:18 | saratoga | i wonder how that happened |
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| 08:30:24 | saratoga | www.rockbox.org/tracker/task/11235">FS #11235 - libmad asm tweaks for ARM9 and above |
| 08:30:28 | saratoga | very minor improvement |
| 08:30:32 | saratoga | but better then nothing |
| 08:30:42 | jhMikeS | how much? |
| 08:30:49 | saratoga | 200kHz on my clipv2 |
| 08:31:02 | saratoga | i thought it would be more but it turns out most of the ASM i fixed isn't actually used :( |
| 08:31:24 | saratoga | i didn't touch the order of the LDM commands either, so maybe theres some further improvement |
| 08:31:25 | jhMikeS | ARM11's supposed to do this in 10MHz, not 30 like it is now :) |
| 08:33:03 | saratoga | its more then 10 MHz IIRC |
| 08:33:43 | saratoga | i though they claimed like 20MHz, and only by significantly sacrificing accuracy |
| 08:33:57 | * | jhMikeS remembers seeing *something* |
| 08:34:06 | jhMikeS | what's PP claim? |
| 08:37:06 | saratoga | www.mp3-tech.org/programmer/docs/mp3_wp.pdf">http://www.mp3-tech.org/programmer/docs/mp3_wp.pdf |
| 08:37:14 | saratoga | this says 18MHz on ARM9E |
| 08:37:38 | saratoga | though since its arm ltd, i'm guessing they're using their emulator and assuming 0 latency memory |
| 08:37:49 | saratoga | rather then an actual hardware implementation with DRAM |
| 08:38:37 | saratoga | i guess turning the S clock way down would improve the total mhz since then teh DRAM would look a lot faster |
| 08:39:35 | saratoga | also I like how almost that entire PDF talks about parts of the decoder that use negligible time |
| 08:40:19 | saratoga | haha and they brag about figuring out how to do a fourier transform in nlog n time |
| 08:40:21 | saratoga | great work guys |
| 08:40:26 | jhMikeS | agreed, it seems perhaps it's 70-80% faster at 528 than 264. |
| 08:41:00 | saratoga | Carl Friedrich Gauss wants to high 5 you, but he can't since he figured that out 200 years ago and is now dead |
| 08:41:15 | jhMikeS | um...hehe |
| 08:42:10 | saratoga | "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." |
| 08:42:12 | saratoga | woah |
| 08:42:16 | saratoga | we don't do that |
| 08:42:20 | saratoga | actually we thought that wasn't possible |
| 08:43:04 | jhMikeS | yes, keep dependencies spread apart in the stream I always say |
| 08:44:36 | saratoga | looking at the imdct we also don't exploit the imdct_half trick from ffmpeg, though thats probably not going to make much difference |
| 08:45:08 | jhMikeS | what's that? |
| 08:45:38 | saratoga | basically, the output of the imdct has middle half symmetry, so you really only need to produce half as many samples |
| 08:45:49 | saratoga | you can generate the rest when windowing |
| 08:46:08 | saratoga | but the symmetry is kind of ackward, so in reality it doesn't save you much, at least not on arm |
| 08:46:36 | saratoga | stripwax worked it out a while ago, i think you could save maybe 1 load per PCM sample produced |
| 08:47:07 | saratoga | and of course you saved memory, but since the mdct is only 36 samples for mp3, thats only 18 bytes saved! |
| 08:47:22 | saratoga | err 18*4 |
| 08:47:34 | n1s | saratoga: 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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| 08:48:56 | saratoga | lookinag 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 |
| 08:49:19 | saratoga | arm11 might gain though, since it can do much faster ldm then ldr |
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| 08:50:11 | saratoga | n1s: i think cf could be made a lot faster for mp3, its much slower then I would expect given its hardware |
| 08:51:11 | saratoga | only marginally faster then the clipv2, in spite of having a much more powerful EMAC, and having 0 latency IRAM |
| 08:52:20 | n1s | probabaly, yes |
| 08:54:04 | saratoga | is the CF emac single cycle for multiply accumulate? |
| 08:55:11 | n1s | yeah |
| 08:55:28 | n1s | it always accumulates |
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| 08:55:37 | n1s | or subtracts |
| 08:55:55 | * | jhMikeS just sees alot of ldr r10... immediately followed by smlal :\ |
| 08:56:05 | saratoga | synth_full.S? |
| 08:56:54 | jhMikeS | yes |
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| 09:00 |
| 09:01:18 | jhMikeS | it says RdLo is the late reg, but it also sets the low part before the high one |
| 09:01:27 | amiconn | jhMikeS, saratoga: Yes, the arm1136 does have 64 bit access to L1 |
| 09:02:37 | amiconn | Afaik the 10MHz are claimed for neon, but that's armv7 |
| 09:03:04 | n1s | neon, would be very cool |
| 09:03:10 | n1s | s/,// |
| 09:05:45 | saratoga | well i found the paper for the DCT we're using |
| 09:05:55 | saratoga | it was apparently optimal in 1984, donno if anyone has done better since |
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| 09:23:41 | amiconn | Iiuc the optimal implementation of (i)(m)dct depends on the architecture you're running it on |
| 09:27:41 | saratoga | true |
| 09:28:10 | saratoga | but for devices like we run on, lowest multiplication count is a pretty good proxy for being optimal |
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| 09:31:28 | amiconn | On coldfire that's not true |
| 09:32:03 | amiconn | On coldfire, the algorithm should utilise fused multiply-add wherever possible |
| 09:32:28 | | Quit xilef (Ping timeout: 246 seconds) |
| 09:32:33 | amiconn | If you look at the coldfire idct for mpegplayer (libmpeg2) you'll see what I mean |
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| 09:39:18 | amiconn | The 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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| 09:48:58 | amiconn | For 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 |
| 09:49:23 | amiconn | (same thing as I've done for the libdemac filters on armv4) |
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| 10:48:53 | Buschel | some more comment on libmad's synthesis filter: |
| 10:49:37 | Buschel | a) 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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| 10:49:54 | Buschel | (do not know the fs id by hard, but should be easy to find) |
| 10:51:06 | Buschel | b) 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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| 10:53:15 | Buschel | b) r17724 that is... |
| 10:56:58 | Buschel | a) fs #6705 implemented asm'ed dct32 for libmad |
| 11:00 |
| 11:04:25 | amiconn | Number of instructions is less important than number of cycles |
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| 11:13:04 | Buschel | amiconn: 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. |
| 11:13:55 | Buschel | I 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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| 11:15:13 | amiconn | arm7tdmi has several multi-cycle instructions. Among them are multiplies, single loads and stores |
| 11:15:56 | Buschel | yes, I am fully aware of this fact. |
| 11:16:01 | n1s | that dct asm is probably slower than compiled c on arm cores other than 7tdmi too |
| 11:16:31 | n1s | Mr. Someone should experiment a little |
| 11:20:00 | n1s | the dct on coldfire uses the MUL asm macro which unfortunately hits the mac-movclr stall so that could be improved too |
| 11:23:46 | dfkt | linuxstb: seems we got a correct sdcfg for the cowon s9 - 0xa1102800 (from: http://iaudiophile.net/forums/showpost.php?p=290112&postcount=28) |
| 11:26:07 | amiconn | Stalls is what can be reduced in the armv6 idct for mpegplayer too |
| 11:26:38 | amiconn | Somehow I totally forgot about latencies when doing the current implementation :\ |
| 11:29:27 | linuxstb | dfkt: That's good. Do you think I should commit it to svn? |
| 11:34:12 | Torne | i'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) |
| 11:34:40 | Torne | it 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* |
| 11:35:30 | linuxstb | Torne: Yes, go for it. |
| 11:35:36 | Torne | and the leftover-stuff-in-iram explanation does seem plausible given the limited look into the bootrom i've had |
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| 11:41:32 | CIA-5 | New commit by torne (r25772): www.rockbox.org/tracker/task/11149">FS #11149: alternative fix for ipod startup/shutdown issue ... |
| 11:42:52 | CIA-5 | New commit by dave (r25773): Add support for the Cowon S9, based on the information from http://iaudiophile.net/forums/showthread.php?t=36073 |
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| 11:44:57 | dfkt | linuxstb - that's great. i guess the "watermark" guy will want to try it soon. :) |
| 11:49:50 | dfkt | linuxstb, do you have a binary of the new version? |
| 11:50:14 | linuxstb | dfkt: I'm just preparing a release now... |
| 11:54:16 | CIA-5 | New commit by dave (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 |
| 12:00:15 | linuxstb | dfkt: 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) |
| 12:01:37 | dfkt | thank you very much, linuxstb |
| 12:08:40 | | Quit liar (Quit: Verlassend) |
| 12:12:08 | Torne | hmm. 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 |
| 12:12:29 | Torne | "if bookmark file exists" is what the patch currently uses, but i don't like that |
| 12:13:07 | *** | Saving seen data "./dancer.seen" |
| 12:17:28 | Llorean | "Only update"? |
| 12:19:51 | Torne | hmm |
| 12:19:55 | Torne | "if file has bookmarks"? |
| 12:20:05 | Torne | though i guess technically bookmarks mostly apply to folders, not files.. |
| 12:23:11 | kugel | only update/refersh existing? |
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| 12:49:40 | loveless | heya, there! I am looking for a tutoring hand with a portaplayer port. any arm devs around? |
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| 12:55:37 | pixelma | just 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 |
| 12:56:12 | pixelma | and possibly answer it... you need to be a bit patient though ;) |
| 12:58:08 | n1s | and we have several targets with other arm based SoC's... |
| 13:00 |
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| 13:02:13 | linuxstb | loveless: What player is this? |
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| 13:08:17 | loveless | linuxstb: 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 |
| 13:08:17 | loveless | p of an experienced rockbox/arm/portaplayer dev. :) |
| 13:09:02 | | Quit mirak (Quit: Ex-Chat) |
| 13:09:18 | linuxstb | loveless: So you're working on a port to the Sansa View? |
| 13:09:36 | pixelma | isn't there some initial work by obo? |
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| 13:10:05 | pixelma | though I believe he hit a brickwall somewhere and seems to have vanished since :\ |
| 13:11:00 | loveless | linuxstb: 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 |
| 13:11:04 | n1s | yeah, 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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| 13:11:40 | linuxstb | loveless: Why do you need that? |
| 13:12:03 | n1s | loveless: have you found any evidence that a similar mode exists in the view as in the sansas? |
| 13:12:19 | n1s | where you can send code over usb and run it |
| 13:13:11 | loveless | pixelma: the view stubs in rockbox trunk are attributed to Robert Keevil. haven't contacted him yet. |
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| 13:13:54 | pixelma | yes, obo in IRC but I haven't seen him in a long time |
| 13:14:02 | loveless | linuxstb: it's the fallback when flashing a faulty firmware lets you only get into manufacturing mode |
| 13:15:50 | linuxstb | loveless: 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. |
| 13:15:54 | n1s | ah that's very useful |
| 13:16:01 | pixelma | last logged in here over 5 months ago (doesn't mean he said something) |
| 13:16:30 | loveless | n1s: 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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| 13:18:26 | loveless | linuxstb: 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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| 13:19:38 | loveless | linuxstb: 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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| 13:19:58 | linuxstb | loveless: 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. |
| 13:20:08 | loveless | linuxstb: but please correct me if i am wrong there |
| 13:20:28 | linuxstb | So for testing your code, you simply need to use usb boot mode to upload your code. e200rpatcher does the same thing. |
| 13:20:51 | linuxstb | i.e. you can ignore most of the functionality of e200tool. |
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| 13:22:25 | loveless | linuxstb: so probably the USB code currently fails on view |
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| 13:22:39 | linuxstb | Yes, but my point is that it doesn't matter., |
| 13:22:47 | | Quit xavieran (Ping timeout: 276 seconds) |
| 13:23:52 | linuxstb | i.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. |
| 13:24:05 | loveless | linuxstb: interesting. i am not too familiar with these processes. it's exactly why I am looking for some tutoring here. :) |
| 13:24:57 | linuxstb | If I was you, I would ignore e200tool, and look at e200rpatcher. |
| 13:25:24 | loveless | I am aware of the untouched boot rom, but from there my knowledge about the bootup goes fuzzy |
| 13:25:45 | loveless | okay, let me look into that |
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| 13:27:48 | loveless | linuxstb: 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. |
| 13:27:51 | linuxstb | e200rpatcher 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. |
| 13:28:00 | linuxstb | loveless: Yes, exactly. |
| 13:29:22 | linuxstb | The code e200rpatcher uploads is in bootloader/main-e200r-installer.c You compile it by selecting an "I"nstaller build for the e200r. |
| 13:31:32 | loveless | linuxstb: 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. |
| 13:32:21 | linuxstb | loveless: I don't think I would do that - if you damage the boot rom, you've likely bricked your sansa... |
| 13:33:38 | loveless | no, i don't intend to touch the bootloader. just the usb/i2c code that is uploaded into ram via usb. |
| 13:35:23 | loveless | or am I missing something here? |
| 13:35:34 | linuxstb | OK, but in my opinion your time would be better spent on other things - you don't need that code at all... |
| 13:36:19 | loveless | I am just looking at the e200rpatcher now. will need some time to feel at home there |
| 13:37:54 | linuxstb | loveless: 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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| 13:43:47 | loveless | this may be a dumb question, but what's the difference between the e200 and the e200r build target? |
| 13:44:34 | linuxstb | There 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. |
| 13:50:00 | loveless | okay |
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| 14:00 |
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| 14:06:00 | loveless | I 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? |
| 14:07:15 | kugel | I don't think so |
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| 14:08:34 | kugel | did anyone notice my libc-folder patch? |
| 14:09:00 | S_a_i_n_t | other than the sheer size of it? ;) |
| 14:09:17 | linuxstb | loveless: 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. |
| 14:10:18 | loveless | right, that was it |
| 14:11:33 | linuxstb | kugel: 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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| 14:12:45 | kugel | the system's *printf exposed some warnings. I haven't checked checkwps but I was about to do it right now |
| 14:13:11 | *** | Saving seen data "./dancer.seen" |
| 14:13:21 | linuxstb | Are you on a 32-bit or 64-bit host? Can you test both? |
| 14:13:28 | CIA-5 | New commit by amiconn (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% ... |
| 14:13:51 | kugel | I'm on 64bit, I could test 32bit in a vm |
| 14:14:43 | kugel | but 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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| 14:15:20 | linuxstb | I thought we already used that? Or was it not being used everywhere? |
| 14:15:55 | kugel | we didn't use it for sprintf, but panicf/splashf used it already |
| 14:17:42 | kugel | checkwps seems fine |
| 14:18:37 | kugel | archosav300 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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| 14:19:54 | linuxstb | It's not part of the automated builds (afaik), so you can forget it. |
| 14:20:02 | linuxstb | I doubt it works currently. |
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| 14:20:12 | kugel | ops, wrong branch, checkwps isn't entirely fine |
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| 14:32:02 | kugel | why does our creat() doesn't have flags? |
| 14:32:17 | | Quit mikroflops_ (Ping timeout: 260 seconds) |
| 14:32:57 | kugel | same for open() |
| 14:34:19 | kugel | I thought we aimed for posix compatibility |
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| 14:36:33 | JdGordon1 | has anyone got crashes when the bootup database "commit databse" splasah shuld pop up? |
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| 14:42:23 | S_a_i_n_t | JdGordon1: I have no crashes using r25761, but from your statement in -community, I think I should negate that previous question? |
| 14:42:32 | | Quit JdGordon1 (Ping timeout: 264 seconds) |
| 14:43:04 | S_a_i_n_t | Um, anyway, FYI r25761 is fine (crashless on database init for me at least.) |
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| 14:45:24 | kugel | grml |
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| 14:59:04 | linuxstb | kugel: 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(). |
| 15:00 |
| 15:00:56 | kugel | but the prototypes needs fixing too |
| 15:01:23 | linuxstb | The prototypes for what? |
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| 15:02:39 | | Quit komputes (Ping timeout: 240 seconds) |
| 15:02:43 | gevaerts | kugel: 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. |
| 15:03:39 | | Quit DataGhost (Ping timeout: 240 seconds) |
| 15:04:19 | kugel | gevaerts: 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 |
| 15:04:30 | loveless | linuxstdb: are there any functions in place in e200rpatcher and the bootloader to facilitate debugging info feedback over usb? |
| 15:05:13 | linuxstb | loveless: No. You would need to find other ways until you get the LCD working. |
| 15:05:40 | kugel | also, 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 |
| 15:06:51 | linuxstb | kugel: 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. |
| 15:06:57 | loveless | linuxstb: well, I can think of gpio led morse code, but, well, ... ;) |
| 15:07:01 | gevaerts | kugel: maybe. I suspect that for some targets we may have to have our own layer in between anyway |
| 15:08:16 | kugel | linuxstb: 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 |
| 15:08:50 | linuxstb | loveless: 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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| 15:10:03 | kugel | what I changed is that the system's headers are used, which simply clashes with our not really posix compilant functions |
| 15:10:39 | gevaerts | right |
| 15:10:45 | linuxstb | kugel: Are you intending to keep those "sim" wrappers for RaaA? |
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| 15:10:52 | gevaerts | And you can't really use some system headers... |
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| 15:12:02 | kugel | gevaerts: 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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| 15:12:40 | kugel | linuxstb: I'm not sure yet |
| 15:12:55 | linuxstb | Isn't creat() the only problem so far? |
| 15:13:12 | kugel | I thought using $HOME instead of $PWD as root would maybe work better |
| 15:13:40 | kugel | linuxstb: well, open lacks the ", ..." part, but the calls should fine |
| 15:13:46 | gevaerts | kugel: I mean, technically it's not easy to use some stuff from /usr/include, and some stuff from elsewhere |
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| 15:14:52 | gevaerts | kugel: don't forget that .rockbox needs to be findable too :) |
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| 15:23:23 | linuxstb | kugel: Yes, but that optional parameter to open() shouldn't affect anything should it? |
| 15:23:34 | kugel | no, I don't think so |
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| 15:30:42 | kugel | seems to work fine |
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| 15:32:12 | linuxstb | kugel: How did you deal with creat() ? |
| 15:32:48 | kugel | only a #define to make it open() for testing purpose, running sed should be fine |
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| 15:35:03 | linuxstb | kugel: Another option would be to rename to something like file_create() so it doesn't clash with any POSIX implementation. |
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| 15:39:15 | loveless | linuxstb: 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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| 15:43:39 | linuxstb | The 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. |
| 15:44:14 | loveless | linuxstb: yes, you remap dram to 0 later on |
| 15:44:52 | linuxstb | I would guess that usb boot mode uploads code to IRAM but let me check. |
| 15:44:54 | loveless | the e200tool asm_code is located to 0x40004000, iirc |
| 15:45:07 | * | kugel isn't sure how to proceed |
| 15:45:08 | linuxstb | Then yes, that's IRAM. |
| 15:50:51 | kugel | 3 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/ |
| 15:50:58 | kugel | 3 options* |
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| 15:52:07 | kugel | (4: band aid: remove #include "file.h" and hope creat() is never going to be called from checkwps) |
| 15:54:03 | loveless | linuxstb: so, 0x10000000-0x12000000 is DRAM and 0x40000000-0x40018000 is IRAM |
| 15:55:12 | linuxstb | kugel: 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). |
| 15:56:39 | linuxstb | I think 3) is probably the cleanest option. I don't like the name "rb_creat()" though... |
| 15:57:14 | linuxstb | loveless: Yes, I think so. With 0x0 being the NOR flash initially (IIRC). |
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| 15:58:18 | loveless | linuxstb: I can't find any pp-specific defintition, just firmware/target/arm/sandisk/app.lds:#define IRAMSIZE 0xc000 ... that's 48k IRAM |
| 15:58:51 | linuxstb | See boot.lds in the same directory - that's the linker file for the bootloader (and the e200rpatcher "installer" application). |
| 16:00 |
| 16:01:04 | kugel | linuxstb: how about create()? it's free :) |
| 16:01:24 | linuxstb | My suggested name earlier was file_create(). I still like it ;) |
| 16:03:08 | loveless | linuxstb: yes, flash should be mapped to 0. that's where the IVT of the original firmware has to land |
| 16:03:12 | kugel | heh, our creat() used to be create(file, flags) (flags as in O_RDONLY, not permission modes) |
| 16:03:44 | loveless | linuxstb: btw, do you know the flash size? |
| 16:03:54 | linuxstb | kugel: Ah, that's probably what caused the discussion I remember. So the conclusion then was to remove the flags parameter completely. |
| 16:04:29 | loveless | linuxstb: it can't have all 2gb mapped there at init time |
| 16:04:43 | linuxstb | loveless: 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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| 16:05:11 | loveless | linuxstb: okay, so only the nor is mapped down there... kay |
| 16:05:31 | linuxstb | loveless: 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). |
| 16:05:31 | loveless | linuxstd: the nand should go over the controller |
| 16:05:46 | kugel | linuxstb: yep (/me's reading the logs right now) |
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| 16:08:32 | kugel | linuxstb: ok, I'll go for 3) |
| 16:13:14 | *** | Saving seen data "./dancer.seen" |
| 16:14:45 | kugel | linuxstb: how about fdcreat(e)? we also have some custom fdprintf |
| 16:17:49 | kugel | btw, our mkdir has the same issue, but it expands to non-posix functions due to dircache |
| 16:21:52 | Buschel | saratoga: 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. |
| 16:22:09 | Buschel | saratoga: only PROD_EVEN_A/_O is needed. |
| 16:22:30 | Buschel | I'll test and commit this clean-up later today |
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| 16:39:54 | amiconn | kugel: Our creat() and open() used to have flags, but that was removed |
| 16:41:23 | amiconn | s/flags/umode/ |
| 16:41:57 | amiconn | It makes no sense to keep a parameter that does absolutely nothing in rockbox. It only costs binsize |
| 16:42:14 | kugel | well, wasn't it flags actually? I saw in the logs that people used to call it with O_WRONLY |
| 16:43:06 | amiconn | Flags do exist |
| 16:43:39 | kugel | not for creat() |
| 16:43:43 | amiconn | creat(9 has no flags in posix either, 'cause it wouldn't make sense |
| 16:49:48 | kugel | not having mode decreases portability. but that wasn't much of an issue until now |
| 16:50:54 | amiconn | Yes, but having it costs binsize for no gain |
| 16:51:25 | amiconn | You could #define things for portability. It's not that you could port a posix app to rockbox without changes anyway... |
| 16:51:59 | kugel | I don't want to port a posix app to rockbox, but rockbox to a posix system ;) |
| 16:52:56 | Bagder | it'd be easy to have the rockbox version be #define open(x,y,z) rockbox_open(x,y) |
| 16:53:36 | kugel | yes, unfortunately it's the other way around |
| 16:53:54 | Bagder | that's easy too, as then you'll just have a wrapper function |
| 16:55:14 | CIA-5 | New commit by amiconn (r25776): Improve motion compensation for ARM: * Use less registers in the simple copy routines -> less stack usage. * Save a few instructions in constants + ... |
| 16:56:11 | kugel | so 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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| 16:57:35 | Bagder | I haven't given it enough thought to say which way I prefer really... |
| 16:58:23 | kugel | I have done the second, but I don't feel strong about it. I'd rather keep some sort of posix compliance though |
| 17:00 |
| 17:03:52 | kugel | hm, the more I think about it the more I prefer the s/creat(file)/creat(file, 0666)/ way |
| 17:04:27 | kugel | (though I'd use 0664 instead) |
| 17:05:21 | gevaerts | kugel: no reason. This is still passed through umask |
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| 17:06:36 | kugel | I think 0664 is more appropriate, why depend on some extra mechanism to make it to 0664 for us? |
| 17:06:55 | Bagder | extra? that's just how it works! |
| 17:07:11 | gevaerts | because (a) we don't know what the user wants, and (b) the extra mechanism is always there |
| 17:07:34 | Bagder | the whole point of umask is to allow the user to decide the rights |
| 17:08:44 | Torne | indeed, umask is not optional. 0664 is wrong on some systems as well :) |
| 17:08:50 | linuxstb | kugel: 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... |
| 17:10:19 | FlynDice | funman: (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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| 17:12:09 | FlynDice | funman: 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. |
| 17:12:16 | amiconn | linuxstb: When umode was removed, it saved quite some binsize |
| 17:12:43 | amiconn | Even if the function just ignores the argument, each call has to pass it |
| 17:12:44 | kugel | the mode would be removed through #defines |
| 17:14:36 | amiconn | #defines are clever, but at the same time they are problematic |
| 17:15:05 | amiconn | We have a lot of things which may clash on some systems |
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| 17:15:43 | amiconn | E.g. you can't build a sim on opensolaris because inttypes somehow clash with the native inttypes |
| 17:15:45 | gevaerts | kugel: you could also define the other way for RaaA |
| 17:16:09 | amiconn | I tried fixing that by always using native inttypes for sims - but then wavpack doesn't compile on linux... |
| 17:16:09 | gevaerts | #define creat(x) creat(x,666) |
| 17:16:25 | amiconn | 0666 |
| 17:16:28 | gevaerts | right |
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| 17:36:14 | kugel | gevaerts: no that doesn't work well |
| 17:36:31 | kugel | the creat() prototype is different which gives warnings |
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| 17:37:39 | * | gevaerts keeps forgetting about the headers |
| 17:38:08 | kugel | amiconn: everything builds fine with native inttypes here (i.e. using sys/types.h) |
| 17:38:33 | kugel | wavpack 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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| 17:44:29 | linuxstb | kugel: Would it make sense to commit some of these small fixes (e.g. removing unsigned int32_t) as you find them? |
| 17:45:23 | kugel | that was basically the only thing that'd make sense to commit separately |
| 17:45:44 | CIA-5 | New commit by Buschel (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 ... |
| 17:46:06 | kugel | "refacturate"? |
| 17:48:17 | * | Buschel hides away |
| 17:48:31 | Buschel | refactor... |
| 17:48:54 | * | Buschel better uses his dictionary before submitting |
| 17:50:09 | Buschel | somebody should commit something to move this from the front page :o) |
| 17:53:25 | linuxstb | kugel: 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. |
| 17:56:04 | linuxstb | kugel: 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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| 17:56:36 | CIA-5 | New commit by mt (r25778): Fix intdentation apps/codecs/libwma/asf.h, no functional changes. |
| 18:00 |
| 18:00:36 | kugel | linuxstb: as I understood things we generally use (our) inttypes.h for these things |
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| 18:01:33 | linuxstb | My understanding was that inttypes is just the int32_t etc types. |
| 18:02:06 | linuxstb | These are normally defined in stdint.h, which is always included by inttypes.h |
| 18:03:00 | linuxstb | Looking at my (Linux) inttypes.h, it also contains some useful-looking macros for dealing with those ints (e.g. in printf) |
| 18:03:05 | kugel | statements like "<linuxstb> wincent: In Rockbox, it's inttypes.h" make me thing that |
| 18:03:10 | kugel | think* |
| 18:03:35 | linuxstb | kugel: What was that in response to? |
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| 18:05:00 | kugel | "<wincent> linuxstb: What about stdint.h ?" |
| 18:06:03 | linuxstb | Yes, but that's not about sys/types.h - IIUC, you're replacing that with inttypes.h ? |
| 18:06:59 | kugel | I don't see what type the talk was about exactly |
| 18:07:18 | kugel | linuxstb: yes, but for the sim inttypes.h includes sys/types.h |
| 18:07:49 | linuxstb | The Rockbox one? If so, then I think that's wrong. My Linux inttypes.h doesn't do that. |
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| 18:08:21 | kugel | I don't get the difference between all these too, but I do know that our versions somehow inttypes clashed with system's headers |
| 18:08:54 | linuxstb | I'm just looking at my Linux versions to see what they are doing. I think Rockbox should be similar. |
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| 18:09:05 | kugel | I didn't make it match the system's inttypes.h, I simply made it defining all int-derived types you'd want |
| 18:09:12 | linuxstb | inttypes/stdint seem to be defined by C99. |
| 18:09:33 | saratoga | anyone object to putting up an official fuzev2 bootloader now? |
| 18:09:35 | linuxstb | sys/types.h is something different. |
| 18:09:38 | saratoga | we have one for the clipv2 |
| 18:10:23 | kugel | my sys/types.h defines (u)intN_t, and is included by stdint.h |
| 18:10:30 | linuxstb | saratoga: 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. |
| 18:10:40 | linuxstb | kugel: What is "my" ? |
| 18:11:02 | kugel | the files on my system |
| 18:11:12 | linuxstb | Yes, but what is your system? |
| 18:11:19 | kugel | my inttypes.h includes stdint.h, so at the end it all comes from sys/types.h |
| 18:11:30 | kugel | ubuntu 10.04 |
| 18:12:21 | linuxstb | So just to be clear, in Ubuntu, sys/types.h includes inttypes.h, and inttypes.h includes stdint.h ? |
| 18:13:03 | kugel | inttypes.h includes stdint.h, which includes sys/types.h |
| 18:13:16 | *** | Saving seen data "./dancer.seen" |
| 18:13:34 | saratoga | is "v1.0" an ok version? |
| 18:13:56 | linuxstb | saratoga: Perfect - I think that's exactly what others use. |
| 18:14:08 | kugel | I don't see why we need released bootloaders for unusable targets, but well.. |
| 18:14:34 | kugel | the clipv2 once was unstable which is why it has one |
| 18:15:00 | saratoga | so that people don't use random bootloaders they find on the internet |
| 18:15:20 | kugel | random as in the ones funman regularly posts on abi? |
| 18:15:36 | saratoga | did he post a bootloader? |
| 18:15:40 | kugel | people shouldn't be using rockbox on the fuzev2 at all, so I don't care what bootloders they use |
| 18:15:59 | linuxstb | kugel: 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. |
| 18:16:04 | kugel | releasing a bootloader somehow implies for me that we're doing support for it |
| 18:16:44 | kugel | so it was technically correct to replace sys/types.h with inttypes.h, wasn't it? |
| 18:16:57 | linuxstb | kugel: No - that's what I'm trying to say. |
| 18:17:14 | linuxstb | Well, it depends _why_ that file was using sys/types.h |
| 18:17:28 | linuxstb | If it's for size_t, off_t etc, then it needs to stay. |
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| 18:17:47 | kugel | size_t is also defined in string.h |
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| 18:18:50 | linuxstb | kugel: 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. |
| 18:19:29 | kugel | "on the way to making a target unusable"? :) |
| 18:19:47 | linuxstb | s/unusable/unstable/ ;) |
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| 18:20:49 | amiconn | kugel: 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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| 18:21:22 | amiconn | The native assembler on osx (yuck!) doesn't like it |
| 18:21:30 | linuxstb | kugel: 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). |
| 18:23:08 | linuxstb | kugel: Conclusion: It's not simple ;) |
| 18:23:12 | amiconn | Using cpp macros instead should be possible, but will be fugly compared to .rept .... |
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| 18:24:54 | kugel | linuxstb: right...a single simple inttypes.h sounded so appealing :( |
| 18:32:07 | CIA-5 | New commit by Buschel (r25779): Fix a bug introduced with r25777. |
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| 18:47:43 | funman | FlynDice: 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 |
| 18:48:40 | mt2 | it seems to me that get_timestamp() in codecs/wma.c is asf-specific and independent of the stream's codec, right ? |
| 18:48:41 | funman | and fifo count = 48 (bytes, not words) |
| 18:49:33 | saratoga | mt2: correct |
| 18:50:02 | saratoga | it just parses the header of an ASF packet and gives the time in the file |
| 18:50:13 | saratoga | unless wma pro changes asf, it should work |
| 18:50:19 | saratoga | but its only used for seeking anyway |
| 18:51:52 | | Quit hebz0rl (Quit: Ex-Chat) |
| 18:52:33 | funman | FlynDice: 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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| 19:00 |
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| 19:11:04 | | Quit Kupop (Ping timeout: 264 seconds) |
| 19:11:22 | funman | I 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 |
| 19:14:19 | | Quit petur (Ping timeout: 264 seconds) |
| 19:15:31 | | Quit togetic (Ping timeout: 264 seconds) |
| 19:15:41 | funman | if 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 |
| 19:16:16 | loveless | linuxstb: 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. |
| 19:16:28 | | Quit M3DLG (Ping timeout: 260 seconds) |
| 19:16:55 | funman | loveless: look at system_reboot() |
| 19:16:56 | | Join kugel [0] (~kugel@rockbox/developer/kugel) |
| 19:17:13 | loveless | funman: thanks! |
| 19:18:03 | | Join pamaury [0] (~c2c7a50a@rockbox/developer/pamaury) |
| 19:18:18 | loveless | funman: I hope it works without system_init() running before |
| 19:18:59 | funman | no idea i only know about the e200v2 |
| 19:19:11 | loveless | works there? |
| 19:19:25 | funman | yes |
| 19:19:45 | CIA-5 | New commit by mt (r25780): - Factor out container specific code from apps/codecs/wma.c. ... |
| 19:19:45 | loveless | how are they different from the platform view? |
| 19:19:50 | | Quit GeekShadow (Ping timeout: 276 seconds) |
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| 19:20:32 | funman | completely |
| 19:20:44 | funman | they only share a compatible DAC |
| 19:20:59 | loveless | what about memory layout? |
| 19:22:21 | funman | memory 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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| 19:23:00 | * | funman sets up a bounty of 1 beer to the 1st person who will draw a smiley on the build table |
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| 19:24:51 | kugel | funman: maybe the 3 left words are shifted away by the >> 2? |
| 19:25:44 | funman | no |
| 19:25:48 | loveless | funman: works. nice. now out to find DEV_RS on the view |
| 19:26:29 | funman | kugel: 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 |
| 19:26:45 | gevaerts | \☺/ |
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| 19:26:54 | funman | because we transfer sectors which are multiple of 4 bytes |
| 19:27:10 | loveless | funman: works on the view, too. same address! neato :) |
| 19:27:30 | funman | kugel: i think the 3 words can't be transferred to the FIFO because of the fifo threshold higher than 3 words |
| 19:27:52 | kugel | don't you transfer whole sectors at a time anyway? |
| 19:28:03 | funman | but then if i limit reads to the size of the fifo threshold i miss much more data |
| 19:28:09 | funman | yes, so i don't get what's this linux code |
| 19:28:25 | funman | each sector is split in several transfers to/from the fifo though |
| 19:28:34 | funman | loveless: ah you are working on sansa view ? |
| 19:28:41 | funman | have you found the work of obo ? |
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| 19:28:46 | kugel | is there some kind of FIFO_EMPTY vs FIFO_ALMOST_EMPTY irq bit as on the dbop? |
| 19:28:54 | funman | there is EMPTY & FULL |
| 19:29:11 | kugel | but empty triggers to early? |
| 19:29:19 | kugel | too* |
| 19:29:29 | funman | hm? |
| 19:29:53 | | Quit hebz0rl (Quit: Ex-Chat) |
| 19:30:08 | funman | we don't check if it's empty |
| 19:30:17 | kugel | oh, ok |
| 19:30:43 | CIA-5 | New commit by mt (r25781): Add the Rockbox GPL header to apps/codecs/libasf/asf.c and fix the one in apps/codecs/wma.c |
| 19:30:53 | funman | we 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 |
| 19:31:07 | kugel | linuxstb: ok, I'll go through the sys/types.h vs inttypes.h thing again |
| 19:31:21 | kugel | but first I'll put up a separate patch to fix the creat() thing |
| 19:32:24 | loveless | funman: let's say I am trying to get a grip. I am rather n00bish to ARM/rockbox dev |
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| 19:33:25 | loveless | funman: started with disassembling both original firmwares and decided to turn to rockbox and see what's there for the view already |
| 19:33:36 | CIA-5 | New commit by archivator (r25782): Add myself to COMMITERS |
| 19:34:07 | archivator | yay! I still remember this svn stuff! |
| 19:34:18 | archivator | Anyone using git-svn on a regular basis? |
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| 19:35:32 | funman | yeah |
| 19:35:41 | linuxstb | archivator: Welcome ;) |
| 19:35:46 | SARBound | well, I just installed Rockbox on my Sansa Fuze v1... it is nice! |
| 19:35:51 | gevaerts | archivator: welcome! |
| 19:36:08 | archivator | funman: is there a way to compress multiple commits (say, an entire branch) into a single svn commit? |
| 19:36:16 | archivator | gevaerts, linuxstb: thanks! |
| 19:36:46 | funman | loveless: 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 |
| 19:37:07 | loveless | funman: yes, I have |
| 19:37:10 | | Quit Kupop (Ping timeout: 246 seconds) |
| 19:37:24 | funman | archivator: once you have your commits on master it should be as simple as 'git svn dcommit' (I don't use branches) |
| 19:37:52 | funman | ah sorry i misread, git svn dcommit will make separate commits |
| 19:38:25 | funman | why making a single commit ? small commits are easier to check, at the expense of bissection being a bit more complex |
| 19:39:03 | archivator | funman: My trees are often "try X", "try Y", "revert X", "try Z", "revert Y" - the git equivalent of spam, really :) |
| 19:39:31 | funman | try git rebase to squash commits |
| 19:39:35 | mt2 | archivator: congrats ☺ |
| 19:39:36 | loveless | funman: does obo still idle out around here? it seems the port had stalled. the view tree is full of stubs |
| 19:39:40 | funman | loveless: nope :/ |
| 19:40:17 | | Quit SARBound (Quit: ChatZilla 0.9.86 [Firefox 3.6.3/20100401080539]) |
| 19:40:26 | linuxstb | kugel: What was the conclusion about creat() ? |
| 19:41:29 | kugel | not 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 |
| 19:42:32 | funman | loveless: afaik he bricked one of his views, i don't know if he has others |
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| 19:44:53 | loveless | funman: ouch. seem he's fresh out of views. |
| 19:45:48 | | Quit funman (Quit: free(random());) |
| 19:48:42 | kugel | meh, that's complicated with plugins |
| 19:49:29 | linuxstb | kugel: 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"... |
| 19:53:07 | kugel | the file I/O functions handling is already quite tricky right now |
| 19:54:22 | linuxstb | I was wondering if simply using file_open(), file_close() and file_create() everywhere could simplify all that. |
| 19:55:00 | linuxstb | But then that wouldn't look that nice... |
| 19:55:52 | kugel | I don't really want to leave posix completely |
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| 19:56:25 | | Quit archivator (Ping timeout: 252 seconds) |
| 19:56:57 | amiconn | Well rockbox is posix alike, but not posix compliant anyway |
| 20:00 |
| 20:01:06 | loveless | meh, 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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| 20:01:54 | loveless | compiles fine from system-pp502x.c in the dependecies :/ |
| 20:04:10 | loveless | what gcc options are required to get it to assemble cpsid? |
| 20:04:23 | kugel | ok, 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 |
| 20:04:23 | linuxstb | loveless: Did you install the Rockbox toolchain? i.e. arm-elf-gcc using rockboxdev.sh ? |
| 20:04:47 | kugel | s/try/tiny/ |
| 20:05:42 | gevaerts | kugel: don't you need a real function for the plugin api? |
| 20:05:49 | | Quit sinthetek (Ping timeout: 258 seconds) |
| 20:06:12 | kugel | gevaerts: yes, that's why static inline. the compiler generates a body once its address is taken |
| 20:06:19 | gevaerts | right |
| 20:06:38 | kugel | we do the same thing with some other functions as well |
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| 20:11:13 | loveless | linuxstb: yes, that's what I did. |
| 20:11:30 | loveless | linuxstb: 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. |
| 20:12:23 | loveless | linuxstb: it's used for disabling the irqs. |
| 20:12:24 | linuxstb | loveless: Can you upload your main-e200r-installer.c somewhere? e.g. www.pastebin.com |
| 20:12:39 | linuxstb | Are you sure you're using the right system_reboot() ? |
| 20:13:00 | * | kugel fails at sed |
| 20:13:19 | *** | Saving seen data "./dancer.seen" |
| 20:13:24 | loveless | linuxstb: it should be this one, but I'll check. |
| 20:14:19 | linuxstb | loveless: 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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| 20:17:22 | linuxstb | loveless: 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. |
| 20:18:03 | | Quit halmi (Ping timeout: 268 seconds) |
| 20:18:13 | loveless | linuxstb: yes, right. I was looking in the wrong #if branch for the preprocessor |
| 20:19:33 | | Quit bluebrother (Ping timeout: 246 seconds) |
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| 20:22:23 | kugel | http://pastie.org/942639 |
| 20:27:04 | CIA-5 | New commit by mt (r25783): - Modify metadata/asf.c to use libasf. ... |
| 20:29:40 | loveless | linuxstb: sure enough, using the correct mnemonics solved the problem. gee, I'm so slow on this! :/ |
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| 20:36:39 | linuxstb | mt2: You could probably have kept the svn history if you had used "svn cp" when splitting files... |
| 20:38:14 | mt2 | linuxstb: to copy asf.h from libwma to libasf ? |
| 20:38:53 | linuxstb | Yes, but also the main split of wma.c into wma.c and asf.c |
| 20:40:35 | loveless | linuxstb: fine, the view finally reboots on my own code. thanks! now on to the important things. ;) |
| 20:40:48 | mt2 | linuxstb: hmm.. never really used it that way before. |
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| 20:44:34 | mt2 | linuxstb: How would that work ? svn cp apps/codecs/wma.c apps/codecs/libasf/asf.c -> commit -> modify both files (add/remove necessary code) -> commit ? |
| 20:45:21 | linuxstb | I _think_ you can do both steps together. |
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| 20:46:38 | amiconn | Yes, you can |
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| 21:00 |
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| 21:01:39 | CIA-5 | New commit by Buschel (r25784): Change naming of arm asm routines in libmad's synthesis to match their functionality. |
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| 21:16:48 | CIA-5 | New commit by Buschel (r25785): Remove residual tabs in codec directory. |
| 21:19:42 | linuxstb | mt2: 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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| 21:22:57 | mt2 | linuxstb: okay, will change that.. |
| 21:24:18 | kugel | linuxstb: i have a patch fo creat(), what should I do about open()? you said there are some files which use open to create files? |
| 21:26:23 | linuxstb | kugel: Yes, just grep for O_CREAT. I guess those could be changed to use creat if they are using the equivalent flags to creat() |
| 21:26:50 | linuxstb | But 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 |
| 21:27:57 | linuxstb | That's the FAT driver testing code? |
| 21:28:55 | kugel | not the slightest idea ;) |
| 21:32:03 | kugel | making open() posix compliant would probably have an impact |
| 21:32:34 | kugel | I think you can't inline variadic functions, as they mean passing parameters on the stack |
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| 21:36:00 | archivator | Just so you know, the wiki's TinyMCE does not completely work in Chrome. Some things like Headings and indentation fail. |
| 21:36:22 | CIA-5 | New commit by amiconn (r25786): Save a few instructions by better use of conditions. |
| 21:38:13 | linuxstb | kugel: 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. |
| 21:38:26 | CIA-5 | New commit by amiconn (r25787): Test more possible alignments in the Write & Verify test. Some ata drivers apply optimisations up to line size alignment. |
| 21:38:39 | kugel | well, no, some call open with additional flags |
| 21:38:49 | kugel | like O_APPEND instead of O_TRUNC |
| 21:39:01 | archivator | Can 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. :) |
| 21:40:10 | linuxstb | kugel: When also using O_CREAT? |
| 21:41:22 | linuxstb | kugel: I see the answer to that is "yes"... So no, that won't work. |
| 21:42:16 | kugel | we can still ignore the mode in rockbox easily, but just changing it to be variadic has an impact |
| 21:42:32 | kugel | (an impact I don't really care about, but I guess amiconn does?) |
| 21:45:20 | linuxstb | Well, we should always try to be as efficient as we can. But if it causes complications, I would say it's up for discussion... |
| 21:48:22 | | Quit S_a_i_n_t () |
| 21:48:49 | mt2 | linuxstb: Just tested, and it seems CODEC is defined for metadata parsers too .. |
| 21:49:07 | linuxstb | mt2: Strange... |
| 21:49:24 | | Quit rbert (Quit: http://quassel-irc.org - Chat comfortably. Anywhere.) |
| 21:50:39 | linuxstb | mt2: Are you sure? For example, libwavpack/wavpack.h uses #ifdef CODEC |
| 21:51:54 | | Quit stoffel (Read error: Connection reset by peer) |
| 21:52:12 | linuxstb | mt2: 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 |
| 21:59:45 | | Quit Buschel () |
| 22:00 |
| 22:02:32 | mt2 | linuxstb: I was wrong about the CODEC define ( misinterpretation of compiler warnings :( ) .. anyway, yes I'll just remove the extra codec_api parameter. |
| 22:07:13 | CIA-5 | New commit by mt (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 |
| 22:09:40 | linuxstb | mt2: You left the comment in asf.h.... |
| 22:10:31 | * | mt2 slaps forehead - what a weird lack of focus today. |
| 22:12:19 | | Quit togetic (Ping timeout: 265 seconds) |
| 22:13:22 | *** | Saving seen data "./dancer.seen" |
| 22:13:29 | CIA-5 | New commit by mt (r25789): missed a comment |
| 22:14:21 | * | kugel is too tired to fix all these open calls :'( |
| 22:16:02 | linuxstb | Bagder: 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. |
| 22:22:55 | archivator | bluebrother: have you looked into concurrent voicing for Mac OS X? |
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| 22:30:45 | CIA-5 | New commit by archivator (r25790): FFT plugin: eliminate 64-bit math. This should result in faster and probably more accurate calculations. |
| 22:31:57 | bluebrother | archivator: no, not yet. Will give it a look now (finally some time to look into Rockbox related stuff this weekend) |
| 22:32:42 | CIA-5 | New commit by archivator (r25791): FFT plugin: The 64-bit sqrt function is no longer needed |
| 22:33:24 | archivator | bluebrother: no worries, do keep me informed. :) |
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| 22:39:14 | archivator | Should I post test builds for www.rockbox.org/tracker/task/11219">FS #11219 or just commit it and hope for the best? |
| 22:39:22 | | Quit Horscht (Ping timeout: 276 seconds) |
| 22:40:30 | gevaerts | archivator: it can't cause things to stop working, right? |
| 22:40:41 | | Quit Strife89 (Ping timeout: 264 seconds) |
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| 22:40:54 | archivator | gevaerts: well, no. It only touches plugins/fft |
| 22:41:39 | | Quit Bullet` (Quit: Bye les gens =)) |
| 22:43:01 | bluebrother | anyone 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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| 22:56:57 | bluebrother | archivator: commented on www.rockbox.org/tracker/task/11160">FS #11160 |
| 22:58:13 | linuxstb | mt2: I'm just looking at your libwmapro files - was it really ffmpeg r228866 (in README.rockbox) ? |
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| 22:59:12 | archivator | bluebrother: awesome. I'll try it out in a few minutes to make sure all the linux engines still work.. |
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| 23:00:45 | bluebrother | I've only changed one line compared to the 05 patch, so at least my changes won't make a difference for linux :) |
| 23:01:08 | bluebrother | I hope to get around having a more detailed look in the code later. |
| 23:02:53 | | Join arlaneenalra [0] (~jules@adsl-68-92-124-89.dsl.lgvwtx.swbell.net) |
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| 23:05:26 | arlaneenalra | I'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' |
| 23:05:48 | arlaneenalra | I'm pretty sure I'm missing some little flag in here somewhere . . . |
| 23:06:20 | gevaerts | Are you using the right compiler, in a clean directory? |
| 23:07:38 | | Join Luca_S [0] (~5711b744@giant.haxx.se) |
| 23:07:47 | arlaneenalra | just 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) |
| 23:08:04 | Luca_S | arlaneenalra: if you're using the vmware image, you need to relaunch the ./rockboxdev.sh script |
| 23:08:20 | Luca_S | I had the same error and running that script fixed it |
| 23:08:25 | linuxstb | That's probably the problem then. You need to enable the correct multilibs - see the tools/rockboxdev.sh script |
| 23:08:50 | kugel | ha! I can make open() work without big hit |
| 23:09:12 | kugel | but it needs even more hackery around the file IO functions for the codec/plugin api |
| 23:10:47 | mt | linuxstb: that's 22886. ( I know .. :( ) |
| 23:10:56 | linuxstb | mt: No problem ;) |
| 23:11:00 | arlaneenalra | Luca_S: I'm not running the vmware image . . . |
| 23:11:24 | archivator | bluebrother: works as expected with both TTSExes and Festival. |
| 23:11:24 | gevaerts | arlaneenalra: we provide a script to build crosscompilers for a reason :) |
| 23:11:34 | bluebrother | archivator: nice :) |
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| 23:33:28 | kugel | is it safe to just ignore variable parameters? |
| 23:33:55 | kugel | i.e. open_wrapper(a, b, ...) { file_open(a,b); }? |
| 23:38:24 | kugel | ok, assuming it is, I have a patch to fix open() as well |
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| 23:48:14 | kugel | heh, that's everything quite hackish but I hope that keeps the binsize crowd quiet |
| 23:52:45 | kugel | patch at www.rockbox.org/tracker/task/11234">fs#11234, I probably commit tomorrow if nobody objects/makes a comment on the tracker. |
| 23:54:46 | | Quit bmbl (Quit: Bye!) |
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