view blobs/patches/frame_na7_db_ir-systrace.patch @ 673:62a5285e014a

Lorekeeping: allow tpudrv-leonardo.lib on Leonardo/Tango Back in 2015 the Mother's idea was to produce a FreeCalypso development board that would be a clone of TI Leonardo, including the original quadband RFFE; one major additional stipulation was that this board needed to be able to run original unmodified TCS211-20070608 firmware with all blobs intact, with only minimal binary patches to main.lib and tpudrv.lib. The necessary patched libs were produced at that time in the tcs211-patches repository. That plan was changed and we produced FCDEV3B instead, with Openmoko's triband RFFE instead of Leonardo quadband, but when FC Magnetite started in 2016, a TPUDRV_blob= provision was still made, allowing the possibility of patching OM's tpudrv.lib for a restored Leonardo RFFE. Now in 2020 we have FC Tango which is essentially a verbatim clone of Leonardo core, including the original quadband RFFE. We have also deblobbed our firmware so much that we have absolutely no real need for a blob version of tpudrv.lib - but I thought it would be neat to put the ancient TPUDRV_blob= mechanism (classic config) to its originally intended use, just for the heck of it.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 29 May 2020 03:55:36 +0000
parents acb07ce22054
children
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# TI's original version of the pf_TaskEntry() function in the guts of GPF
# does this number once all GPF tasks have entered their main loop:
#
#    TraceMask[0] = 0;
#
# The effect of this line is that "system" trace output gets disabled;
# in particular, "system primitive" requests like querying for existing
# TRACECLASS of various entities or for the GPF version elicit no response
# whatsoever until one sends a TRACECLASS setting sysprim which restores
# the TC_SYSTEM bit in TraceMask[0].
#
# In FreeCalypso we consider this clearing of TraceMask[0] to be either
# a bug or a misfeature, and we would like to change it.  In the case of
# the GPF code in question, we do have a copy of frame.c source (the module
# where the offending pf_TaskEntry() function is implemented) which we believe
# is the same code as what's in the TCS211 version of GPF, but TCS211 is not
# set up to recompile any part of GPF from source, and there are other modules
# in the same frame_na7_db_ir.lib for which we don't have the original source
# (os_*), hence it is easier to do a binary lib patch.
#
# The present patch is a binary form of:
#
# -TraceMask[0] = 0;
# +TraceMask[0] = TC_SYSTEM;

[frame.obj]

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