FreeCalypso > hg > fc-magnetite
view doc/Freerunner-Howto @ 635:baa0a02bc676
niq32.c DTR handling restored for targets that have it
TI's original TCS211 fw treated GPIO 3 as the DTR input (wired so on C-Sample
and D-Sample boards, also compatible with Leonardo and FCDEV3B which have a
fixed pull-down resistor on this GPIO line), and the code in niq32.c called
UAF_DTRInterruptHandler() (implemented in uartfax.c) from the
IQ_KeypadGPIOHandler() function. But on Openmoko's GTA02 with their official
fw this GPIO is a floating input, all of the DTR handling code in uartfax.c
including the interrupt logic is still there, but the hobbled TCS211-20070608
semi-src delivery which OM got from TI contained a change in niq32.c (which
had been kept in FC until now) that removed the call to
UAF_DTRInterruptHandler() as part of those not-quite-understood "CC test"
hacks.
The present change fixes this bug at a long last: if we are building fw for a
target that has TI's "classic" DTR & DCD GPIO arrangement (dsample, fcmodem and
gtm900), we bring back all of TI's original code in both uartfax.c and niq32.c,
whereas if we are building fw for a target that does not use this classic GPIO
arrangement, the code in niq32.c goes back to what we got from OM and all
DTR & DCD code in uartfax.c is conditioned out. This change also removes the
very last remaining bit of "CC test" bogosity from our FreeCalypso code base.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 19 Jan 2020 01:41:35 +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.