FreeCalypso > hg > freecalypso-sw
view ffstools/tiffs-rd/README @ 224:2900fe603f8a
beginning of MPFFS->TIFFS naming convention change
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Sun, 12 Jan 2014 07:59:00 +0000 |
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children | c04aa85559ed |
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The utility being developed in this source directory will allow one to examine ("in vitro") flash file system (FFS) images read out of TI GSM devices - or more precisely, out of GSM devices using a TI chipset and running TI's GSM firmware versions from the late Calypso era. The FFS version in question is implemented in our own FreeCalypso GSM fw, also happens to be used by the original proprietary firmware on the Pirelli DP-L10, and on some devices like Openmoko GTA0x the use of this FFS format is required in order to make use of the factory IMEI and RF calibration data. This new tiffs utility is intended to replace the earlier mpffs-* utilities released in the summer of SE52 (A.D. 2013), and will also incorporate the additional examination functionality that was developed as part of the "pirollback" utilities. Naming ====== I have previously referred to the FFS format in question as Mokopir-FFS or MPFFS, from "Moko" and "Pirelli". I was originally hesitant to call it TIFFS, as lacking the source code, I had no way of knowing whether the FFS format and implementation were of TI's own invention, or something that TI licensed as a black box from one of their many proprietary software partners. (I was unable to identify it as any well-known, industry-standard FFS format, but absence of evidence is not evidence of absence.) But now that we have TI's original source code which implements this FFS (first the MV100-0.1.rar source, then the full Leonardo one), complete with comments and a HISTORY file, we know that our FFS was invented and implemented by someone named Mads Meisner-Jensen at TI - I'm guessing in the SSA group in Nice, France. I am now making a naming transition from MPFFS to TIFFS: there is really no link between this FFS format and the Openmoko+Pirelli duo, other than the happenstance of me having first encountered this FFS on these two GSM device brands, and the name TIFFS is more neutrally-descriptive.