FreeCalypso > hg > fc-tourmaline
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UI fw: load handheld audio mode on boot
We have now reached the point where use of audio mode config files
should be considered mandatory. In ACI usage we can tell users that
they need to perform an AT@AUL of some appropriate audio mode, but
in UI-enabled fw we really need to have the firmware load audio modes
on its own, so that correct audio config gets established when the
handset or development board runs on its own, without a connected host
computer.
Once have FC Venus with both main and headset audio channels and
headset plug insertion detection, our fw will need to automatically
load the handheld mode or the headset mode depending on the plug
insertion state. For now we load only the handheld mode, which has
been tuned for FC-HDS4 on FC Luna.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 13 Nov 2021 03:20:57 +0000 |
| parents | a62e5bf88434 |
| children |
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State of blobs in FreeCalypso firmware ====================================== FC Tourmaline is almost completely deblobbed. Only the following very small components exist in the form of blobs (prebuilt binary objects for which we have no exact corresponding source) in the standard Tourmaline build: * OSL and OSX glue components of GPF: 14992 bytes of code * TMS470 compiler's RTS library (libc/libgcc equivalent): 13152 bytes of code For OSL and OSX we do have reconstructed C code written based on disassembly of the blobs, but I (Mother Mychaela) do not consider the current state of this C reconstruction to be fit for production use - hence standard Tourmaline fw builds use blob versions of these components. However, our configuration and build system gives you the freedom to select which version of each component you would rather use; the selection is made with Bourne shell config variables on the configure.sh invokation line: OSL=0 use the blob version of OSL OSL=1 use the reconstructed C version of OSL OSX=0 use the blob version of OSX OSX=1 use the reconstructed C version of OSX The current default is OSL=0 and OSX=0. RTS library =========== We do have source code for some versions of the TMS470 compiler's RTS library, but they may not be exactly corresponding to the blob version from TCS211 which we are using. This area is deemed to be such a low priority that no real investigation has been done yet.