Hacking EHCI IOS module

visor1982 · Oct 6, 2008

hi,

I have recently read marcan speaking about USB 2 / EHCI on EOL and also asked svpe (who wrote usb parts of libogc) about this topic. Both tell that Wii's usb slots are usb 2 and that ehci registers are at d0500000. I have experience with usb controllers at some other microcontroller projects and like to develop a custom IOS module to enable usb 2.
We have everything we need for this: neimod's toolkit and the EHCI documentation.
Is there anyone in here capable of helping? Maybe even someone from Team Twiizers?

Thanks

visor

btw. i'm not interested in writing a hddloader but i neither care if anyone does this with the ehci module when we finish it

I just want this for homebrew!

idunnoilikends · Oct 6, 2008

I've done work with usb 2.0 on windows computers.
But I would have no clue were to start for a driver...

noONE · Oct 6, 2008

Yeah.. it'd be great for Media players.
Hope you get somewhere with this, good luck.

Screemer · Oct 6, 2008

wish you good luck with your project. i am looking forward for a geexbox or mplayer version with a implimentation of this.

jinxvorheeze · Oct 7, 2008

I might be able to help you. PM me with your information and we can get into contact with each other.

datahoarder · Oct 7, 2008

Oh man, glad to see someone is embarking on this venture.
Side-question: Would it not be better to post all the information publicly? (may help debug/others learn)

soonepoon · Oct 7, 2008

what are the advantages of having this for the homebrewers?

Tantric · Oct 7, 2008

visor1982, You might want to ask for help on the TehSkeen site - it's more oriented towards development. There's also the wiibrew IRC channel where developers hang out - #wiidev on EFNet

FAST6191 · Oct 7, 2008

The main draw is speed, USB 1.1 is around 12Mbps (about enough for a relatively high end xvid video) while USB 2.0 is around 480Mbps (60 megabytes / second or a half decent hard drive speed).
It is not quite that simple of course:
http://www.usb.org/developers/usb20/develo...ers/usb_20g.pdf

As it stands it probably will not make a great difference (1.1 is fast enough for basic playback of video) but it is definitely worth doing as it could pave the way for larger homebrew games (video is one thing but streaming resources is quite another).

As for helping, I am better at reverse engineering than writing stuff and it looks like most of the reverse engineering has been done. If it is IOS work then it is ARM9 ("the" IOS runs on the starlet as far as I know), I known a lot of controllers have been made with an ARM backend to a USB port (some of the wireless routers spring to mind, D-link if I recall correctly) so it may be worth thinking about porting something and optimising that rather than going for something from the ground up.

jinxvorheeze · Oct 7, 2008

Glad to see that they are so hard at work on the project that they didn't even contact me (as I was the only one who actually offered to help). Oh well... if they need help, all they need to do is PM me.

Volkov · Oct 7, 2008

It's been less than 24 hours...why don't you just wait

Athlon-pv · Oct 7, 2008

ISOloader and USB 2.0 = streamed games to outperform the burned DVD's ?

visor1982 · Oct 7, 2008

jinxvorheeze said:
Glad to see that they are so hard at work on the project that they didn't even contact me (as I was the only one who actually offered to help). Oh well... if they need help, all they need to do is PM me.

i'm not online 24/7, sorry. and i already posted all informations i currently have. i just confirmed today that the ehci registers actually are at 0x0d050000

do you have any experiences with low-level drivers? or you even know the usb specs by heart?

btw. i like to develop this in public, create some sourceforge or google code project once we have a few ppl.

QUOTE(Athlon-pv @ Oct 7 2008, 01:16 PM) ISOloader and USB 2.0 = streamed games to outperform the burned DVD's ?

yes, if someone write a hddloader.

Thanks for the hint to #wiidev and tehskeen too, i'll try asking there later

pelago · Oct 7, 2008

You could also try http://forum.wiibrew.org/

Meowayne · Oct 7, 2008

Just in case you want to contact waninkoko, he can be found in the Wii scene forum at elotrolado.net..

Edit I forgot to say: I wish you the best of luck with your project! Unfortunatly I cannot help you. But USB 2.0, now that would be something.

visor1982 · Oct 9, 2008

some #wiidev idiot kicked me. no one wanted help me

anyone who wants usb 2 hdd loader + ehci module and can help PM me. i write that just to piss those idiots off

Saladman · Oct 9, 2008

It's a nasty scene, my advice is to not bother. For some weird reason if you succeed and release anything people will hate you .. don't ask me why but that's the way it is. Ask Wanin.

I guess the chip makers/suppliers/sellers rule all the forums, and thats where the 'weird' hate comes from.

magic12 · Oct 9, 2008

i will not hate u

Trolly · Oct 9, 2008

QUOTE said:
It's a nasty scene, my advice is to not bother. For some weird reason if you succeed and release anything people will hate you .. don't ask me why but that's the way it is. Ask Wanin.

True, but surely even Waninkoko is satisfied and pleased with what he has achieved.

I wish you the best of luck, as right now USB 2.0 would be immensely useful. Reading and writing WADs, dumping games, everything homebrew-related will be far quicker and easier.
Not to mention the ISO loader, though I'm trying to stick to buying Wii games for the moment.

marcan · Oct 9, 2008

visor1982 said:
some #wiidev idiot kicked me. no one wanted help me

anyone who wants usb 2 hdd loader + ehci module and can help PM me. i write that just to piss those idiots off

Actually, you got kicked because we got you to admit what we all suspected: that you wanted to write an HDD loader anyway. You should have actually been kicked for using a web-IRC client (since those aren't allowed anyway, courtesy of the terrible, horrible signal to noise ratio from them), but that's another topic entirely, and we only realized that after the fact.

On the other hand, I've been waiting for some pirate-kid (wanky-boy?) to do this. Then us homebrewers will get something out of the piracy scene for once (USB 2.0 support), instead of the other way around. You don't get the right to ask for help, though, sorry.

Not that I think you'll succeed anyway, but one can dream.

Hacking EHCI IOS module

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