forums.ps2dev.org

[commentary] > A handy one would be a file reader for people who can't be stuck looking at the PSP for hours at a time - like having it speak a novel while you're driving. Books on tape the cheap way. :) IMHO the TTS audio quality of 'flite' and other similar PDA text-to-speech is rather poor. The m...

The PSP will never be an adequate MIDI sequencer. The PSP is not a USB Host which is needed to connect to USB MIDI devices. The PSP can't provide enough USB power for most external devices. Serial is limited. The PSP doesn't have the right drivers. There is no PSP sequencer software. Next-to-no open...

Please read this thread: http://forums.ps2dev.org/viewtopic.php?t=2471 The regular PSP internet APIs and sample code will work just as well for a WiFi 'adhoc' connection between two PSPs or a PSP and another WiFi device. You have to set it up for a non-DHCP connection etc. You can do this with the s...

Several issues. TV remote controls don't use IRDA ! So the IRDA samples won't help you. Instead TV remote controls and other IR devices use what is commonly called "Consumer IR". How the IR signal is encoded varies a lot, depending on the manufacturer, device etc. It looks nothing like IRD...

[apparently they fixed their problem, but for anyone else researching this topic] This is very old information. This thread should be closed. The "DHCP" problem was fixed over a year ago (Fall 2005!) DHCP will work if you start the modules in the proper modes (some in user mode, some in ke...

Some general advice/comments: If you have a Wifi controlled robot (like an AIBO http://www.aibohack.com/psp/wifitest.htm ) using a PSP or other portable Wifi ready PDA is a great choice. In general I would recommend a PDA since it has a touch screen. If starting something new, it may not be the best...

Yes, works well once you get the settings right
http://forums.ps2dev.org/viewtopic.php? ... highlight=

Note the confusing terminology (your PC will be in WiFi adhoc, and the PSP will be in what it calls "Infrastructure mode", but technically it is WiFi adhoc)

(disclaimer: haven't been following this thread, so question may sound stupid) What is the reason/goal for reverse engineering the exact IPL algorithm ? I gave up trying to track the changes since Sony is obviously changing the algorithm quite often. > ...dumping RAM after boot should be able to rev...

Don't know about nonblocking
UDP blocking receive *does* work (see the photo frame feature of the original WiFi03 sample)
I suggest spawning another thread to do the UDP reading/waiting. That has other advantages instead of constantly polling

This probably is getting off-topic for the PS2DEV/PSP forums. These are general issues for NAT and game servers. For building any similar game infrastructure I strongly recommend getting it working from PC to PC That way you can get a reliable infrastructure first, get the server scripts working, an...

> I, too, would like to know this, as I want to connect to an online server, allowing users of the app/game (AKA client) to connect to the server... > (Is there a better way?) IMHO that's the best way. Best if you have a serious webserver (ie. real domain and fixed IP address) and can run custom CGI...

> because my PSP is across the internet on another router, not the same router as the client. That's the problem. Nothing to do with PSP or WiFi - but a general Internet issue. Ie. you can't simply ping your home computer from work by typing in the IP address of your home machine. I assume your rout...

sceKernelQuerySystemCall and related sceKernelRegisterSystemCallTable

IIRC 'sceKernelQuerySystemCall' takes a pointer to the real function in (kernel) memory
Anyway not very useful in most cases for the reasons stated.

I assume you are running two different programs (or the same program in two different modes). One must be the 'server' (bind/listen/accept) and the other must be the 'client' (connect). The client must know the IP address of the server to initiatiate the connection. NOTE: the technique is the same w...

Thanks for the 2.6 exploit and to everyone involved. > ...Kernel mode on 2.6. The keys will be with us soon :) > ...does this exploit now allow for the 2.60 IPL key(s) to be recovered or is it too late Yes all the PRX decoding is in the kernel memory dumps. Time to dust off my PSP tools and update P...

> I'll try to get a 2.60 user memory space dump to see if there is something useful there (has someone do that before?) I have suggested it to others in the past - but haven't seen any results (I'm living in the past with 1.0/1.5) If someone has a user RAM capture, I'd like to see it. If they have G...

> mod. PspPet's PSAR Dumper .02A w/o Decrypte
> but can not decode Special PSAR records second block...
...
>Sys_DecodeE returned $ffffff32 144
> Failed to decode(2)

Get PSAR dumper .02"B"
http://www.aibohack.com/psp

Updated version 2B (.02B) http://www.aibohack.com/psp/psardump02b.zip Larger buffer will extract files from the 2.6 and 2.7 PSAR files. A minor tweek needed for the 2.70 header. NOTE: will extract only for 2.6 or 2.7. The decrypt function will not work [see comment above, someone needs to look at &q...

General rule - if it is not on my website, it isn't mine: http://www.aibohack.com/psp Increasing the buffer size is a simple change. The hard part is figuring out how the 2.6 (and newer) PRXs are keyed/mangled. As always, be careful of EBOOT.PBP files you download from the web, expecially from unkno...

> i just want to replace [new ver PRX files] with [old ver PRX files] In general it won't work. Short answer: the older boot loader can't load the newer 2.x modules (system or game), the newer boot loader won't load old 1.x system modules. ---- The newer system firmware will load old and new PRXs. T...

We don't know how to REGENERATE (Aka Encrypt) PRX files. The "key" area you see at the start of the PRX is only part of a relatively complicated decryption process (it is merged in with several other "keys" stored in the PSP - and run through the decryption hardware) See the Psar...

> am looking for the 2.00 (and higher fw versions if possible) Scenand Syscalls
Sorry, they are all 'kernel' entries/exports, so they don't have/need syscall entries [syscalls are allocated for user exports only]

module: emc_sm.prx

> My idea is to emulate 2 PSPS communicating with one another (in infrastructure mode) by opening 2 sockets: ... I originally thought each would have to be on a different channel (ok the 2 channel thing is a red herring) You want them on the same channel, and the same WiFi network (same SSID / same ...

> Can someone suggest an optimal minimum stack size for a WIFI background thread I'm using in my application? The "background" thread used by the WiFi stack is not normally allocated in your code (unless you are rolling your own startup). It is hard coded in the startup code (my "nlhI...

> you can transmit on one channel (say 1) and receive on another (say 11). Not at the same time. When you enable the WiFi it needs a specific configuration, which will be a single SSID and will eventually resolve to a single WiFi radio channel. You can switch configurations, but it is not a fast pro...

BTW: Why is this thread still alive ? re: version changer technology The version tricking technology has changed -- anything discussed over 2 months ago is obsolete. Those simple tricks (simply bumping the version number) no longer work for a number of reasons. See longer discussions about trying to...

FWIW: there is a more elaborate/robust library built into the system that does all of this. However it hasn't been completely reverse engineered (yet/ever?)
If interested, look for the "sceHttp" APIs.

>What I need is the equivalent control like the *nix commands iwconfig, iwpriv The 'sceUtility*NetParam' APIs are closest to common 'iwconfig' features. Once you find an access point, you need to store the net parameters in the system, probably as a new configuration (otherwise other programs won't ...

As mentioned, there are plenty of WiFi samples out there. Including http://www.aibohack.com/psp/wifitest.htm Also partial support in the current PSPSDK. ---- > Is there any sourcecode around dealing with manipulating the wireless chip directly? Everything is done using the Sony sceNet? system librar...

> have they changed the encryption again? Yes. Three brand new keys, not used before. Can't decrypt because we don't have the plain-text versions to use. Otherwise the structure looks unchanged. Also the IPL implementation has changed "part3" of the IPL decoding (built into PsarDumper2A) d...