Index page for the Iriver Ifp Rockbox porting effort

Abstract

Rockbox is finally being ported to iRiver's iFP device, at least to iFP790; this page is to help coordinate the effort.

Status

Function	Status
Collect information	In Progress see IriverFP3XX5XXHardwareComponents, IriverIfp7XXSpecs
Decrypt firmware	In Progress see IfpCryptanalysis
Overall project	In Progress see below

Hardware summary

	iFP1xx	iFP3xx	iFP5xx	iFP7xx	iFP8xx	FP9xx	iFP1xxx	N10
cpu	PhilipsSAA7750	PhilipsSAA7750	PhilipsSAA7750	PhilipsPNX0101	PhilipsPNX0101	PhilipsPNX0101	PhilipsPNX0101	PhilipsPNX0101
ram	?	?	8MB	?	?	?	?	?
flash-ROM	?	?	2MB	?	?	?	?	?
usb	1.1	?	?	2.0(ISP1582BS)	2.0(ISP1582BS)	2.0	1.1	?

Iriver iFP 790 Backdoor

TomekMalesinski: I created a way to run custom code on iFP790. I patched the firmware in such a way that instead of playing files with .wma extension it treates them as code and executes them. The patched firmware loads at most 1MB of a file at 0x24000000 (although I am not sure if there is whole 1MB) and jumps to that address storing return address in LR, so the executed code can return just like a regular subroutine. The patch also disables the Ogg Vorbis low bitrate limit.

Warning: I am not responsible for any damages caused by the patch.

In order to create the patched firmware, download the firmware version UMS 1.29 EU http://www.iriver.com/html/support/download/sudw_view.asp?searchProductIdx=35&searchCategoryIdx=1&searchString=&page=1&idx=623 and two attached files: bin_patch.c and ums129eu.patch. Unzip the original firmware. Compile the bin_patch.c program and run it:

./bin_patch IFP-7XXT.HEX IFP-7XXT_new.HEX <ums129eu.patch

The new file IFP-7XXT_new.HEX should have the following MD5 checksum (do not copy it to the player if it is different):

31def10bf772f80f6b4d7d2fdfd5a001  IFP-7XXT_new.HEX

Now you can upgrade your player with a new firmware. Remember about the above warning, but if you have fresh batteries everything should go fine.

Rockbox Port

The current version of the port allows a user to browse the menu only. Flash memory and audio are not supported yet. Shutting down does not work too, you have to remove the battery from the player to switch it off. Recently was committed to CVS on Jan 11, 06 and basic key definitions have been added, allowing plugins to compile. Other useful iFP files and tools can be found at http://www.mimuw.edu.pl/~tmal/rockbox/.

The rockbox.bin should have .wma extension on the player. Otherwise it will not be possible to run it.

• bin_patch.c: Firmware patcher

• ums129eu.patch: UMS 1.29 EU backdoor