FreeCalypso > hg > fc-magnetite
view doc/Freerunner-Howto @ 636:57e67ca2e1cb
pcmdata.c: default +CGMI to "FreeCalypso" and +CGMM to model
The present change has no effect whatsoever on Falconia-made and Openmoko-made
devices on which /pcm/CGMI and /pcm/CGMM files have been programmed in FFS
with sensible ID strings by the respective factories, but what should AT+CGMI
and AT+CGMM queries return when the device is a Huawei GTM900 or Tango modem
that has been converted to FreeCalypso with a firmware change? Before the
present change they would return compiled-in defaults of "<manufacturer>" and
"<model>", respectively; with the present change the firmware will self-identify
as "FreeCalypso GTM900-FC" or "FreeCalypso Tango" on the two respective targets.
This firmware identification will become important if someone incorporates an
FC-converted GTM900 or Tango modem into a ZeroPhone-style smartphone where some
high-level software like ofono will be talking to the modem and will need to
properly identify this modem as FreeCalypso, as opposed to some other AT command
modem flavor with different quirks.
In technical terms, the compiled-in default for the AT+CGMI query (which will
always be overridden by the /pcm/CGMI file in FFS if one is present) is now
"FreeCalypso" in all configs on all targets; the compiled-in default for the
AT+CGMM query (likewise always overridden by /pcm/CGMM if present) is
"GTM900-FC" if CONFIG_TARGET_GTM900 or "Tango" if CONFIG_TARGET_TANGO or the
original default of "<model>" otherwise.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 19 Jan 2020 20:14:58 +0000 |
| parents | c9a65db8be4a |
| children |
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The latest official firmware for Openmoko Neo1973 and Neo FreeRunner Calypso modems is moko13 as of this writing; moko13 is FreeCalypso Magnetite Hg changeset 286:840113655bbf built for the gtamodem target in the l1reconst configuration. There have been many changes in FC Magnetite since then, but few of them affect the l1reconst config on the gtamodem target in any noticeable way. The few noticeable post-moko13 changes which we do have in our current l1reconst code are not deemed important enough to justify making another formal release for a no-longer-made hardware platform that no longer has any real user community either. However, we also have the new TCS2/TCS3 hybrid config in which the old version of the G23M protocol stack from Openmoko (binary libs only, no source) has been replaced with a newer version from TI's TCS3/LoCosto program, and this new version is full source. This hybrid firmware has now reached the state where it is ready to be exercised by adventurous beta users in real-life usage. The new hybrid fw for the gtamodem target can be built as follows: ./configure.sh gtamodem hybrid cd build-gtamodem-hybrid; make Then after enduring the very slow build, you can flash it with fc-loadtool: loadtool> flash erase 0 0x250000 loadtool> flash program-bin 0 fwimage.bin If you are brave enough to do the above, please let us know how this new modem firmware fares when driven by QtMoko or SHR on the AP - it would definitely be an adventure! We would be most interested in working with developers or maintainers of specific AP software components that are directly responsible for talking AT commands to the modem, if there are any such developers or maintainers still around.