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SIM speed enhancement re-enabled and made configurable TI's original code supported SIM speed enhancement, but Openmoko had it disabled, and OM's disabling of speed enhancement somehow caused certain SIM cards to start working which didn't work before (OM's bug #666). Because our FC community is much smaller in year 2020 than OM's community was in their day, we are not able to find one of those #666-affected SIMs, thus the real issue they had encountered remains elusive. Thus our solution is to re-enable SIM speed enhancement and simply wait for if and when someone runs into a #666-affected SIM once again. We provide a SIM_allow_speed_enhancement global variable that allows SIM speed enhancement to be enabled or disabled per session, and an /etc/SIM_spenh file in FFS that allows it to enabled or disabled on a non-volatile basis. SIM speed enhancement is now enabled by default.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 May 2020 05:02:28 +0000
parents c9a65db8be4a
children
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1 The latest official firmware for Openmoko Neo1973 and Neo FreeRunner Calypso
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2 modems is moko13 as of this writing; moko13 is FreeCalypso Magnetite Hg
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3 changeset 286:840113655bbf built for the gtamodem target in the l1reconst
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4 configuration. There have been many changes in FC Magnetite since then, but
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5 few of them affect the l1reconst config on the gtamodem target in any
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6 noticeable way. The few noticeable post-moko13 changes which we do have in our
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7 current l1reconst code are not deemed important enough to justify making
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8 another formal release for a no-longer-made hardware platform that no longer
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9 has any real user community either.
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10
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11 However, we also have the new TCS2/TCS3 hybrid config in which the old version
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12 of the G23M protocol stack from Openmoko (binary libs only, no source) has been
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13 replaced with a newer version from TI's TCS3/LoCosto program, and this new
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14 version is full source. This hybrid firmware has now reached the state where
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15 it is ready to be exercised by adventurous beta users in real-life usage.
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16
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17 The new hybrid fw for the gtamodem target can be built as follows:
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19 ./configure.sh gtamodem hybrid
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20 cd build-gtamodem-hybrid; make
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22 Then after enduring the very slow build, you can flash it with fc-loadtool:
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24 loadtool> flash erase 0 0x250000
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25 loadtool> flash program-bin 0 fwimage.bin
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26
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27 If you are brave enough to do the above, please let us know how this new modem
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28 firmware fares when driven by QtMoko or SHR on the AP - it would definitely be
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29 an adventure! We would be most interested in working with developers or
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30 maintainers of specific AP software components that are directly responsible
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31 for talking AT commands to the modem, if there are any such developers or
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32 maintainers still around.