FreeCalypso > hg > freecalypso-sw
comparison ffstools/tiffs-rd/README @ 224:2900fe603f8a
beginning of MPFFS->TIFFS naming convention change
| author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
|---|---|
| date | Sun, 12 Jan 2014 07:59:00 +0000 |
| parents | |
| children | c04aa85559ed |
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| 223:0848c7f419fd | 224:2900fe603f8a |
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| 1 The utility being developed in this source directory will allow one to examine | |
| 2 ("in vitro") flash file system (FFS) images read out of TI GSM devices - or | |
| 3 more precisely, out of GSM devices using a TI chipset and running TI's GSM | |
| 4 firmware versions from the late Calypso era. The FFS version in question is | |
| 5 implemented in our own FreeCalypso GSM fw, also happens to be used by the | |
| 6 original proprietary firmware on the Pirelli DP-L10, and on some devices like | |
| 7 Openmoko GTA0x the use of this FFS format is required in order to make use of | |
| 8 the factory IMEI and RF calibration data. | |
| 9 | |
| 10 This new tiffs utility is intended to replace the earlier mpffs-* utilities | |
| 11 released in the summer of SE52 (A.D. 2013), and will also incorporate the | |
| 12 additional examination functionality that was developed as part of the | |
| 13 "pirollback" utilities. | |
| 14 | |
| 15 Naming | |
| 16 ====== | |
| 17 | |
| 18 I have previously referred to the FFS format in question as Mokopir-FFS or | |
| 19 MPFFS, from "Moko" and "Pirelli". I was originally hesitant to call it TIFFS, | |
| 20 as lacking the source code, I had no way of knowing whether the FFS format and | |
| 21 implementation were of TI's own invention, or something that TI licensed as a | |
| 22 black box from one of their many proprietary software partners. (I was unable | |
| 23 to identify it as any well-known, industry-standard FFS format, but absence of | |
| 24 evidence is not evidence of absence.) But now that we have TI's original source | |
| 25 code which implements this FFS (first the MV100-0.1.rar source, then the full | |
| 26 Leonardo one), complete with comments and a HISTORY file, we know that our FFS | |
| 27 was invented and implemented by someone named Mads Meisner-Jensen at TI - I'm | |
| 28 guessing in the SSA group in Nice, France. | |
| 29 | |
| 30 I am now making a naming transition from MPFFS to TIFFS: there is really no | |
| 31 link between this FFS format and the Openmoko+Pirelli duo, other than the | |
| 32 happenstance of me having first encountered this FFS on these two GSM device | |
| 33 brands, and the name TIFFS is more neutrally-descriptive. |