tree 896b993627c146b89838742c26a9c12cefd27c69
parent 4760b6ec1f7fbcee1bf238a25e3df56a86327a5a
author Nico Huber <nico.h@gmx.de> 1713130787 +0200
committer Nico Huber <nico.h@gmx.de> 1721642927 +0000

dediprog: Split read/write command preparation by protocol

There has been a forest of `if`s growing inside prepare_rw_cmd(). And
the V3 protocol allows for more flexibility that would result in even
more branches if we'd continue adding to this function.

Instead, split it into one function per protocol version  and provide
a pointer to it in our context structure. This will allow us to adapt
the V3 function more easily and only sacrifices a little code sharing
between V2 and V3.  We also let it return the number of bytes for the
command packet and define a maximum size, to simplify the API.

Change-Id: Ibe9da3d3f1aac74309b89f840d9ce9e6e7978405
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/126
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>