The latest firmware v1.75 introduced a new hardware descriptor byte to
identify the different models based on their hardware features. This new
hardware descriptor is now used as the libdivecomputer model number. For
older firmware versions, which do not support the descriptor yet, there
is an automatic fallback to the previous method based on the serial
number.
This connects the bits and implements firmware upgrade for the OSTC3.
This code is inspired by JeanDo ostc-companion.
Reviewed-by: Jef Driesen <jef@libdivecomputer.org>
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Starting with firmware v1.23, the OSTC3 settings can be configured
through the USB interface. There are new commands for reading, writing
and restoring the settings to their default values.
Although the communication protocol of the OSTC3 is nearly identical to
that of the Frog, the different size parameters make it hard to share
the code easily. On top of that, if we ever implement native bluetooth
communication support, we'll need a completely separate backend anyway.
Therefore the Frog backend is simply duplicated, with a few OSTC3
specific changes applied here and there.
The existing ostc parser is upgraded to support the new OSTC3 data
format.
