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target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 25 May 2019 20:44:05 +0000
parents 0a01e1c4ea54
children 519689d3e1c7
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1 The /opt/freecalypso host directory tree used by the present FC host tools
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2 package and by various add-ons to it does NOT follow the traditional Unix/Linux
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3 file system hierarchy standard (FHS), instead it is a highly specialized
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4 directory tree that is meant to be private to FreeCalypso, with its structure
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5 defined solely by the Mother and no one else. The following subdirectories are
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6 currently defined:
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7
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8 aud-*: these directories appear if you install our optional
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9 fc-audio-config package, and contain subtrees to be uploaded by
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10 production line scripts into target device FFS under /aud via fc-fsio.
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11
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12 batteries and charging: these subtrees come from fc-battery-conf
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13 (optional just like fc-audio-config) and are meant to be used with
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14 fc-fsio write-battery-table and write-charging-config commands.
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15
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16 bin and include are the only subdirectories under /opt/freecalypso
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17 which follow traditional UNIX directory layout; include was added so
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18 that packages external to the core FC host tools package like
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19 fc-rfcal-tools and freecalypso-ui-dev can use rvinterf headers.
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20
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21 gcc: the recommend install location for our ARM7 gcc toolchain is
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22 /opt/freecalypso/gcc.
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23
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24 helpfiles subdir contains help files for those FC host utilities which
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25 implement a help command.
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26
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27 loadtools subdir contains hardware parameter files and init scripts
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28 which underlie the all-important -h option to fc-loadtool, fc-iram and
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29 fc-xram, collectively known as loadtools.
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30
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31 rfcal subdir only appears if you are doing RF calibration and install
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32 fc-rfcal-tools, and some of the necessary config files under that
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33 subdir you have to create yourself using your own RF knowledge specific
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34 to your particular setup.
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35
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36 target-bin contains ARM7 target binaries used under the hood by
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37 loadtools.
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38
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39 The basic minimal form of the /opt/freecalypso tree is populated when
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40 you install FC host tools, but it is further enriched if and when you
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41 install further add-ons (fc-audio-config, fc-battery-conf,
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42 fc-rfcal-tools) which are more specialized and not required for all
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43 users. I expect to have more additions in the future: for example,
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44 when we start using the Melody E1 mechanism in our planned FC Libre
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45 Dumbphone, there will be a FreeCalypso ringtones package that will
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46 install E1-format melody files somewhere under /opt/freecalyso, to be
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47 subsequently uploaded into the actual phones via fc-fsio, initially at
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48 production time and optionally by end users.