This change separates the convolutional code definitions from the code
generator logic, allowing us to make further changes in more specific
way. For example, adding some new codes, you change the conv_codes.py
only because such change isn't related to the generator.
Change-Id: I3428561251b7d7a180d1e9b6fcaad50bdbbc37fa
This change introduces the memory usage optimization, mentioned
in d2d9760c08. The aim is to make
code generator able to detect, whether the same tables are used
by several convolutional code definitions, and prevent one from
writing these tables multiple times.
For now, the detection process isn't fully automatic, so all
shared polynomials should be placed inside the 'shared_polys'
dictionary, for example:
shared_polys = {
"xcch" : [
( G0, 1 ),
( G1, 1 ),
],
"mcs" : [
( G4, 1 ),
( G7, 1 ),
( G5, 1 ),
],
}
Change-Id: I84760f5cdfdaece376b801d2e6cb2954ee875a3b
This change finally makes the script able to be executed
in Python 3 environment. Due to new Python 3 restrictions,
the reduce() should be imported explicitly.
Change-Id: Icbc81c29f1a226aeed2c1245a5d60809fe124005
To keep the generated tables readable, line with should be limited.
So, now there are the following limitations:
- _print_term(): up to 12 numbers per line,
- _print_puncture(): up to 12 numbers per line,
- _print_x(): up to 4 blocks per line.
Change-Id: I95256c4ad402a3c088bdb6c5a5cda8b17c31881c
Instead of generating every convolutional code into a separate
file (such as conv_xcch_gen.c, conv_cs3_gen.c), it is better to
have a single file, containing all definitions, because as many
convolutional codes we add, as many entries we will have to add
into 'src/gsm/Makefile.am'. This approach increases readability
of the Makefile.am, and also makes us able to share some data
between some convolutional code definitions.
For example: xCCH, RACH, SCH, TCH/F, both CS2 and CS3 may use
the same *_state[][2] and *_output[][2] arrays within a single
file. This optimization is currently WIP.
Change-Id: Ib4e4ee5fdde38429e68e3b2fa50ec03a18f59daa
The script does not work with python3:
$ python3 utils/conv_gen.py
File "utils/conv_gen.py", line 124
def _print_term(self, fi, num_states, pack = False):
Second there is no 'python' on FreeBSD and one needs to select
the major version to use.
GEN conv_cs3_gen.c
GEN conv_xcch_gen.c
GEN conv_cs2_gen.c
python: not found
python: not found
python: not found
By using python2 we solve both issues. On Debian python2 is located
inside the python-minimal package.
Vadim Yanitskiy
Harald Welte