From: Max <msuraev(a)sysmocom.de>
Add python utility to generate .c code with convolutional
encoder/decoder based on polynomial description of the code. If argument
given it'll be interpreted as intended output directory, otherwise
current working directory is used.
Codes for *CCH, CS2/3 and TCH/AFS are generated. Corresponding manual
implementations are removed from tests. This introduce build-time
dependency on python.
The main work for this patch was generously contributed by Sylvain
Munaut.
Fixes: OS#1629
---
.gitignore | 1 +
debian/control | 1 +
include/Makefile.am | 1 +
include/osmocom/gsm/gsm0503.h | 74 +++++++
src/gsm/Makefile.am | 8 +
src/gsm/libosmogsm.map | 12 +
tests/Makefile.am | 2 +-
tests/conv/conv_test.c | 283 ++++++++----------------
utils/conv_gen.py | 494 ++++++++++++++++++++++++++++++++++++++++++
9 files changed, 681 insertions(+), 195 deletions(-)
create mode 100644 include/osmocom/gsm/gsm0503.h
create mode 100755 utils/conv_gen.py
diff --git a/.gitignore b/.gitignore
index f73a533..e3dbcac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -100,6 +100,7 @@ doc/gsm
doc/html.tar
src/crc*gen.c
+src/gsm/conv*gen.c
include/osmocom/core/crc*gen.h
include/osmocom/core/bit*gen.h
diff --git a/debian/control b/debian/control
index 459030b..42ebdba 100644
--- a/debian/control
+++ b/debian/control
@@ -39,6 +39,7 @@ Description: Osmo GPRS GB library
Package: libosmogsm5
Section: libs
Architecture: any
+Build-Depends: python (>= 2.7.6)
Depends: ${shlibs:Depends}, ${misc:Depends}
Multi-Arch: same
Description: Osmo GSM utility library
diff --git a/include/Makefile.am b/include/Makefile.am
index 0e5ed74..e7888c5 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -64,6 +64,7 @@ nobase_include_HEADERS = \
osmocom/gsm/gsm0411_utils.h \
osmocom/gsm/gsm0480.h \
osmocom/gsm/gsm0502.h \
+ osmocom/gsm/gsm0503.h \
osmocom/gsm/gsm0808.h \
osmocom/gsm/gsm48.h \
osmocom/gsm/gsm48_ie.h \
diff --git a/include/osmocom/gsm/gsm0503.h b/include/osmocom/gsm/gsm0503.h
new file mode 100644
index 0000000..cf1c976
--- /dev/null
+++ b/include/osmocom/gsm/gsm0503.h
@@ -0,0 +1,74 @@
+/*
+ * gsm0503.h
+ *
+ * Copyright (C) 2016 sysmocom s.f.m.c. GmbH
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#include <osmocom/core/conv.h>
+
+/*! \file conv_gen.h
+ * Osmocom convolutional encoder/decoder for xCCH channels, see 3GPP TS 05.03
+ */
+
+/*! \brief structure describing convolutional code xCCH
+ *
+ * Non-recursive code, flushed, not punctured code.
+ */
+extern const struct osmo_conv_code gsm0503_xcch;
+
+/*! \brief structures describing convolutional codes CS2/3
+ */
+extern const struct osmo_conv_code gsm0503_cs2;
+extern const struct osmo_conv_code gsm0503_cs3;
+
+/*! \brief structure describing convolutional code TCH/AFS 12.2
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_12_2;
+
+/*! \brief structure describing convolutional code TCH/AFS 10.2
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_10_2;
+
+/*! \brief structure describing convolutional code TCH/AFS 7.95
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_7_95;
+
+/*! \brief structure describing convolutional code TCH/AFS 7.4
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_7_4;
+
+/*! \brief structure describing convolutional code TCH/AFS 6.7
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_6_7;
+
+/*! \brief structure describing convolutional code TCH/AFS 5.9
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_5_9;
+
+/*! \brief structure describing convolutional code TCH/AFS 5.15
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_5_15;
+
+/*! \brief structure describing convolutional code TCH/AFS 4.75
+ */
+extern const struct osmo_conv_code gsm0503_tch_afs_4_75;
diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index b0ea643..1b186b1 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -18,6 +18,11 @@ libgsmint_la_SOURCES = a5.c rxlev_stat.c tlv_parser.c comp128.c comp128v23.c \
gprs_cipher_core.c gsm0480.c abis_nm.c gsm0502.c \
gsm0411_utils.c gsm0411_smc.c gsm0411_smr.c \
lapd_core.c lapdm.c kasumi.c \
+ conv_cs2_gen.c conv_cs3_gen.c conv_xcch_gen.c \
+ conv_tch_afs_12_2_gen.c conv_tch_afs_10_2_gen.c \
+ conv_tch_afs_7_95_gen.c conv_tch_afs_7_4_gen.c \
+ conv_tch_afs_6_7_gen.c conv_tch_afs_5_9_gen.c \
+ conv_tch_afs_5_15_gen.c conv_tch_afs_4_75_gen.c \
auth_core.c auth_comp128v1.c auth_comp128v23.c \
auth_milenage.c milenage/aes-encblock.c \
milenage/aes-internal.c milenage/aes-internal-enc.c \
@@ -30,3 +35,6 @@ libosmogsm_la_LDFLAGS = $(LTLDFLAGS_OSMOGSM) -version-info $(LIBVERSION) -no-und
libosmogsm_la_LIBADD = libgsmint.la
EXTRA_DIST = libosmogsm.map
+
+conv%gen.c: ../../utils/conv_gen.py
+ $(AM_V_GEN)python ../../utils/conv_gen.py
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 6886a6c..a75acc0 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -26,6 +26,18 @@ abis_nm_ipa_magic;
osmo_sitype_strs;
+gsm0503_xcch;
+gsm0503_cs2;
+gsm0503_cs3;
+gsm0503_tch_afs_12_2;
+gsm0503_tch_afs_10_2;
+gsm0503_tch_afs_7_95;
+gsm0503_tch_afs_7_4;
+gsm0503_tch_afs_6_7;
+gsm0503_tch_afs_5_9;
+gsm0503_tch_afs_5_15;
+gsm0503_tch_afs_4_75;
+
comp128;
dbm2rxlev;
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 03506af..3aaa99b 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -47,7 +47,7 @@ bits_bitcomp_test_SOURCES = bits/bitcomp_test.c
bits_bitcomp_test_LDADD = $(top_builddir)/src/libosmocore.la
conv_conv_test_SOURCES = conv/conv_test.c
-conv_conv_test_LDADD = $(top_builddir)/src/libosmocore.la
+conv_conv_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libgsmint.la
gsm0808_gsm0808_test_SOURCES = gsm0808/gsm0808_test.c
gsm0808_gsm0808_test_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la
diff --git a/tests/conv/conv_test.c b/tests/conv/conv_test.c
index de62f23..608f829 100644
--- a/tests/conv/conv_test.c
+++ b/tests/conv/conv_test.c
@@ -6,6 +6,7 @@
#include <osmocom/core/bits.h>
#include <osmocom/core/conv.h>
#include <osmocom/core/utils.h>
+#include <osmocom/gsm/gsm0503.h>
#define MAX_LEN_BITS 512
#define MAX_LEN_BYTES (512/8)
@@ -15,107 +16,6 @@
/* Test codes */
/* ------------------------------------------------------------------------ */
-/* GSM xCCH -> Non-recursive code, flushed, not punctured */
-static const uint8_t conv_gsm_xcch_next_output[][2] = {
- { 0, 3 }, { 1, 2 }, { 0, 3 }, { 1, 2 },
- { 3, 0 }, { 2, 1 }, { 3, 0 }, { 2, 1 },
- { 3, 0 }, { 2, 1 }, { 3, 0 }, { 2, 1 },
- { 0, 3 }, { 1, 2 }, { 0, 3 }, { 1, 2 },
-};
-
-static const uint8_t conv_gsm_xcch_next_state[][2] = {
- { 0, 1 }, { 2, 3 }, { 4, 5 }, { 6, 7 },
- { 8, 9 }, { 10, 11 }, { 12, 13 }, { 14, 15 },
- { 0, 1 }, { 2, 3 }, { 4, 5 }, { 6, 7 },
- { 8, 9 }, { 10, 11 }, { 12, 13 }, { 14, 15 },
-};
-
-static const struct osmo_conv_code conv_gsm_xcch = {
- .N = 2,
- .K = 5,
- .len = 224,
- .term = CONV_TERM_FLUSH,
- .next_output = conv_gsm_xcch_next_output,
- .next_state = conv_gsm_xcch_next_state,
-};
-
-
-/* GSM TCH/AFS 7.95 -> Recursive code, flushed, with puncturing */
-static const uint8_t conv_gsm_tch_afs_7_95_next_output[][2] = {
- { 0, 7 }, { 3, 4 }, { 2, 5 }, { 1, 6 },
- { 2, 5 }, { 1, 6 }, { 0, 7 }, { 3, 4 },
- { 3, 4 }, { 0, 7 }, { 1, 6 }, { 2, 5 },
- { 1, 6 }, { 2, 5 }, { 3, 4 }, { 0, 7 },
- { 3, 4 }, { 0, 7 }, { 1, 6 }, { 2, 5 },
- { 1, 6 }, { 2, 5 }, { 3, 4 }, { 0, 7 },
- { 0, 7 }, { 3, 4 }, { 2, 5 }, { 1, 6 },
- { 2, 5 }, { 1, 6 }, { 0, 7 }, { 3, 4 },
- { 0, 7 }, { 3, 4 }, { 2, 5 }, { 1, 6 },
- { 2, 5 }, { 1, 6 }, { 0, 7 }, { 3, 4 },
- { 3, 4 }, { 0, 7 }, { 1, 6 }, { 2, 5 },
- { 1, 6 }, { 2, 5 }, { 3, 4 }, { 0, 7 },
- { 3, 4 }, { 0, 7 }, { 1, 6 }, { 2, 5 },
- { 1, 6 }, { 2, 5 }, { 3, 4 }, { 0, 7 },
- { 0, 7 }, { 3, 4 }, { 2, 5 }, { 1, 6 },
- { 2, 5 }, { 1, 6 }, { 0, 7 }, { 3, 4 },
-};
-
-static const uint8_t conv_gsm_tch_afs_7_95_next_state[][2] = {
- { 0, 1 }, { 2, 3 }, { 5, 4 }, { 7, 6 },
- { 9, 8 }, { 11, 10 }, { 12, 13 }, { 14, 15 },
- { 16, 17 }, { 18, 19 }, { 21, 20 }, { 23, 22 },
- { 25, 24 }, { 27, 26 }, { 28, 29 }, { 30, 31 },
- { 33, 32 }, { 35, 34 }, { 36, 37 }, { 38, 39 },
- { 40, 41 }, { 42, 43 }, { 45, 44 }, { 47, 46 },
- { 49, 48 }, { 51, 50 }, { 52, 53 }, { 54, 55 },
- { 56, 57 }, { 58, 59 }, { 61, 60 }, { 63, 62 },
- { 1, 0 }, { 3, 2 }, { 4, 5 }, { 6, 7 },
- { 8, 9 }, { 10, 11 }, { 13, 12 }, { 15, 14 },
- { 17, 16 }, { 19, 18 }, { 20, 21 }, { 22, 23 },
- { 24, 25 }, { 26, 27 }, { 29, 28 }, { 31, 30 },
- { 32, 33 }, { 34, 35 }, { 37, 36 }, { 39, 38 },
- { 41, 40 }, { 43, 42 }, { 44, 45 }, { 46, 47 },
- { 48, 49 }, { 50, 51 }, { 53, 52 }, { 55, 54 },
- { 57, 56 }, { 59, 58 }, { 60, 61 }, { 62, 63 },
-};
-
-static const uint8_t conv_gsm_tch_afs_7_95_next_term_output[] = {
- 0, 3, 5, 6, 5, 6, 0, 3, 3, 0, 6, 5, 6, 5, 3, 0,
- 4, 7, 1, 2, 1, 2, 4, 7, 7, 4, 2, 1, 2, 1, 7, 4,
- 7, 4, 2, 1, 2, 1, 7, 4, 4, 7, 1, 2, 1, 2, 4, 7,
- 3, 0, 6, 5, 6, 5, 3, 0, 0, 3, 5, 6, 5, 6, 0, 3,
-};
-
-static const uint8_t conv_gsm_tch_afs_7_95_next_term_state[] = {
- 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
- 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62,
- 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
- 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62,
-};
-
-static int conv_gsm_tch_afs_7_95_puncture[] = {
- 1, 2, 4, 5, 8, 22, 70, 118, 166, 214, 262, 310,
- 317, 319, 325, 332, 334, 341, 343, 349, 356, 358, 365, 367,
- 373, 380, 382, 385, 389, 391, 397, 404, 406, 409, 413, 415,
- 421, 428, 430, 433, 437, 439, 445, 452, 454, 457, 461, 463,
- 469, 476, 478, 481, 485, 487, 490, 493, 500, 502, 503, 505,
- 506, 508, 509, 511, 512,
- -1, /* end */
-};
-
-static const struct osmo_conv_code conv_gsm_tch_afs_7_95 = {
- .N = 3,
- .K = 7,
- .len = 165,
- .term = CONV_TERM_FLUSH,
- .next_output = conv_gsm_tch_afs_7_95_next_output,
- .next_state = conv_gsm_tch_afs_7_95_next_state,
- .next_term_output = conv_gsm_tch_afs_7_95_next_term_output,
- .next_term_state = conv_gsm_tch_afs_7_95_next_term_state,
- .puncture = conv_gsm_tch_afs_7_95_puncture,
-};
-
-
/* GMR-1 TCH3 Speech -> Non recursive code, tail-biting, punctured */
static const uint8_t conv_gmr1_tch3_speech_next_output[][2] = {
{ 0, 3 }, { 1, 2 }, { 3, 0 }, { 2, 1 },
@@ -220,18 +120,6 @@ static const struct osmo_conv_code conv_wimax_fch = {
.next_state = conv_wimax_fch_next_state,
};
-
-/* Random code -> Non recursive code, direct truncation, non-punctured */
-static const struct osmo_conv_code conv_trunc = {
- .N = 2,
- .K = 5,
- .len = 224,
- .term = CONV_TERM_TRUNCATION,
- .next_output = conv_gsm_xcch_next_output,
- .next_state = conv_gsm_xcch_next_state,
-};
-
-
/* ------------------------------------------------------------------------ */
/* Test vectors */
/* ------------------------------------------------------------------------ */
@@ -246,87 +134,6 @@ struct conv_test_vector {
pbit_t vec_out[MAX_LEN_BYTES];
};
-static const struct conv_test_vector tests[] = {
- {
- .name = "GSM xCCH (non-recursive, flushed, not punctured)",
- .code = &conv_gsm_xcch,
- .in_len = 224,
- .out_len = 456,
- .has_vec = 1,
- .vec_in = { 0xf3, 0x1d, 0xb4, 0x0c, 0x4d, 0x1d, 0x9d, 0xae,
- 0xc0, 0x0a, 0x42, 0x57, 0x13, 0x60, 0x80, 0x96,
- 0xef, 0x23, 0x7e, 0x4c, 0x1d, 0x96, 0x24, 0x19,
- 0x17, 0xf2, 0x44, 0x99 },
- .vec_out = { 0xe9, 0x4d, 0x70, 0xab, 0xa2, 0x87, 0xf0, 0xe7,
- 0x04, 0x14, 0x7c, 0xab, 0xaf, 0x6b, 0xa1, 0x16,
- 0xeb, 0x30, 0x00, 0xde, 0xc8, 0xfd, 0x0b, 0x85,
- 0x80, 0x41, 0x4a, 0xcc, 0xd3, 0xc0, 0xd0, 0xb6,
- 0x26, 0xe5, 0x4e, 0x32, 0x49, 0x69, 0x38, 0x17,
- 0x33, 0xab, 0xaf, 0xb6, 0xc1, 0x08, 0xf3, 0x9f,
- 0x8c, 0x75, 0x6a, 0x4e, 0x08, 0xc4, 0x20, 0x5f,
- 0x8f },
- },
- {
- .name = "GSM TCH/AFS 7.95 (recursive, flushed, punctured)",
- .code = &conv_gsm_tch_afs_7_95,
- .in_len = 165,
- .out_len = 448,
- .has_vec = 1,
- .vec_in = { 0x87, 0x66, 0xc3, 0x58, 0x09, 0xd4, 0x06, 0x59,
- 0x10, 0xbf, 0x6b, 0x7f, 0xc8, 0xed, 0x72, 0xaa,
- 0xc1, 0x3d, 0xf3, 0x1e, 0xb0 },
- .vec_out = { 0x92, 0xbc, 0xde, 0xa0, 0xde, 0xbe, 0x01, 0x2f,
- 0xbe, 0xe4, 0x61, 0x32, 0x4d, 0x4f, 0xdc, 0x41,
- 0x43, 0x0d, 0x15, 0xe0, 0x23, 0xdd, 0x18, 0x91,
- 0xe5, 0x36, 0x2d, 0xb7, 0xd9, 0x78, 0xb8, 0xb1,
- 0xb7, 0xcb, 0x2f, 0xc0, 0x52, 0x8f, 0xe2, 0x8c,
- 0x6f, 0xa6, 0x79, 0x88, 0xed, 0x0c, 0x2e, 0x9e,
- 0xa1, 0x5f, 0x45, 0x4a, 0xfb, 0xe6, 0x5a, 0x9c },
- },
- {
- .name = "GMR-1 TCH3 Speech (non-recursive, tail-biting, punctured)",
- .code = &conv_gmr1_tch3_speech,
- .in_len = 48,
- .out_len = 72,
- .has_vec = 1,
- .vec_in = { 0x4d, 0xcb, 0xfc, 0x72, 0xf4, 0x8c },
- .vec_out = { 0xc0, 0x86, 0x63, 0x4b, 0x8b, 0xd4, 0x6a, 0x76, 0xb2 },
- },
- {
- .name = "WiMax FCH (non-recursive, tail-biting, not punctured)",
- .code = &conv_wimax_fch,
- .in_len = 48,
- .out_len = 96,
- .has_vec = 1,
- .vec_in = { 0xfc, 0xa0, 0xa0, 0xfc, 0xa0, 0xa0 },
- .vec_out = { 0x19, 0x42, 0x8a, 0xed, 0x21, 0xed, 0x19, 0x42,
- 0x8a, 0xed, 0x21, 0xed },
- },
- {
- .name = "??? (non-recursive, direct truncation, not punctured)",
- .code = &conv_trunc,
- .in_len = 224,
- .out_len = 448,
- .has_vec = 1,
- .vec_in = { 0xe5, 0xe0, 0x85, 0x7e, 0xf7, 0x08, 0x19, 0x5a,
- 0xb9, 0xad, 0x82, 0x37, 0x98, 0x8b, 0x26, 0xb9,
- 0x81, 0x26, 0x9c, 0x75, 0xaf, 0xf3, 0xcb, 0x07,
- 0xac, 0x63, 0xe2, 0x9c,
- },
- .vec_out = { 0xea, 0x3b, 0x55, 0x0c, 0xd3, 0xf7, 0x85, 0x69,
- 0xe5, 0x79, 0x83, 0xd3, 0xc3, 0x9f, 0xb8, 0x61,
- 0x21, 0x63, 0x51, 0x18, 0xac, 0xcd, 0x32, 0x49,
- 0x53, 0x5c, 0x13, 0x1d, 0xbe, 0x05, 0x11, 0x63,
- 0x5c, 0xc3, 0x42, 0x05, 0x1c, 0x68, 0x0a, 0xb4,
- 0x61, 0x15, 0xaa, 0x4d, 0x94, 0xed, 0xb3, 0x3a,
- 0x5d, 0x1b, 0x09, 0xc2, 0x99, 0x01, 0xec, 0x68 },
- },
- { /* end */ },
-};
-
-
-
-
/* ------------------------------------------------------------------------ */
/* Main */
/* ------------------------------------------------------------------------ */
@@ -345,6 +152,94 @@ int main(int argc, char *argv[])
ubit_t *bu0, *bu1;
sbit_t *bs;
+/* Random code -> Non recursive code, direct truncation, non-punctured */
+ const struct osmo_conv_code conv_trunc = {
+ .N = 2,
+ .K = 5,
+ .len = 224,
+ .term = CONV_TERM_TRUNCATION,
+ .next_output = gsm0503_xcch.next_output,
+ .next_state = gsm0503_xcch.next_state,
+ };
+
+ const struct conv_test_vector tests[] = {
+ {
+ .name = "GSM xCCH (non-recursive, flushed, not punctured)",
+ .code = &gsm0503_xcch,
+ .in_len = 224,
+ .out_len = 456,
+ .has_vec = 1,
+ .vec_in = { 0xf3, 0x1d, 0xb4, 0x0c, 0x4d, 0x1d, 0x9d, 0xae,
+ 0xc0, 0x0a, 0x42, 0x57, 0x13, 0x60, 0x80, 0x96,
+ 0xef, 0x23, 0x7e, 0x4c, 0x1d, 0x96, 0x24, 0x19,
+ 0x17, 0xf2, 0x44, 0x99 },
+ .vec_out = { 0xe9, 0x4d, 0x70, 0xab, 0xa2, 0x87, 0xf0, 0xe7,
+ 0x04, 0x14, 0x7c, 0xab, 0xaf, 0x6b, 0xa1, 0x16,
+ 0xeb, 0x30, 0x00, 0xde, 0xc8, 0xfd, 0x0b, 0x85,
+ 0x80, 0x41, 0x4a, 0xcc, 0xd3, 0xc0, 0xd0, 0xb6,
+ 0x26, 0xe5, 0x4e, 0x32, 0x49, 0x69, 0x38, 0x17,
+ 0x33, 0xab, 0xaf, 0xb6, 0xc1, 0x08, 0xf3, 0x9f,
+ 0x8c, 0x75, 0x6a, 0x4e, 0x08, 0xc4, 0x20, 0x5f,
+ 0x8f },
+ },
+ {
+ .name = "GSM TCH/AFS 7.95 (recursive, flushed, punctured)",
+ .code = &gsm0503_tch_afs_7_95,
+ .in_len = 165,
+ .out_len = 448,
+ .has_vec = 1,
+ .vec_in = { 0x87, 0x66, 0xc3, 0x58, 0x09, 0xd4, 0x06, 0x59,
+ 0x10, 0xbf, 0x6b, 0x7f, 0xc8, 0xed, 0x72, 0xaa,
+ 0xc1, 0x3d, 0xf3, 0x1e, 0xb0 },
+ .vec_out = { 0x92, 0xbc, 0xde, 0xa0, 0xde, 0xbe, 0x01, 0x2f,
+ 0xbe, 0xe4, 0x61, 0x32, 0x4d, 0x4f, 0xdc, 0x41,
+ 0x43, 0x0d, 0x15, 0xe0, 0x23, 0xdd, 0x18, 0x91,
+ 0xe5, 0x36, 0x2d, 0xb7, 0xd9, 0x78, 0xb8, 0xb1,
+ 0xb7, 0xcb, 0x2f, 0xc0, 0x52, 0x8f, 0xe2, 0x8c,
+ 0x6f, 0xa6, 0x79, 0x88, 0xed, 0x0c, 0x2e, 0x9e,
+ 0xa1, 0x5f, 0x45, 0x4a, 0xfb, 0xe6, 0x5a, 0x9c },
+ },
+ {
+ .name = "GMR-1 TCH3 Speech (non-recursive, tail-biting, punctured)",
+ .code = &conv_gmr1_tch3_speech,
+ .in_len = 48,
+ .out_len = 72,
+ .has_vec = 1,
+ .vec_in = { 0x4d, 0xcb, 0xfc, 0x72, 0xf4, 0x8c },
+ .vec_out = { 0xc0, 0x86, 0x63, 0x4b, 0x8b, 0xd4, 0x6a, 0x76, 0xb2 },
+ },
+ {
+ .name = "WiMax FCH (non-recursive, tail-biting, not punctured)",
+ .code = &conv_wimax_fch,
+ .in_len = 48,
+ .out_len = 96,
+ .has_vec = 1,
+ .vec_in = { 0xfc, 0xa0, 0xa0, 0xfc, 0xa0, 0xa0 },
+ .vec_out = { 0x19, 0x42, 0x8a, 0xed, 0x21, 0xed, 0x19, 0x42,
+ 0x8a, 0xed, 0x21, 0xed },
+ },
+ {
+ .name = "??? (non-recursive, direct truncation, not punctured)",
+ .code = &conv_trunc,
+ .in_len = 224,
+ .out_len = 448,
+ .has_vec = 1,
+ .vec_in = { 0xe5, 0xe0, 0x85, 0x7e, 0xf7, 0x08, 0x19, 0x5a,
+ 0xb9, 0xad, 0x82, 0x37, 0x98, 0x8b, 0x26, 0xb9,
+ 0x81, 0x26, 0x9c, 0x75, 0xaf, 0xf3, 0xcb, 0x07,
+ 0xac, 0x63, 0xe2, 0x9c,
+ },
+ .vec_out = { 0xea, 0x3b, 0x55, 0x0c, 0xd3, 0xf7, 0x85, 0x69,
+ 0xe5, 0x79, 0x83, 0xd3, 0xc3, 0x9f, 0xb8, 0x61,
+ 0x21, 0x63, 0x51, 0x18, 0xac, 0xcd, 0x32, 0x49,
+ 0x53, 0x5c, 0x13, 0x1d, 0xbe, 0x05, 0x11, 0x63,
+ 0x5c, 0xc3, 0x42, 0x05, 0x1c, 0x68, 0x0a, 0xb4,
+ 0x61, 0x15, 0xaa, 0x4d, 0x94, 0xed, 0xb3, 0x3a,
+ 0x5d, 0x1b, 0x09, 0xc2, 0x99, 0x01, 0xec, 0x68 },
+ },
+ { /* end */ },
+ };
+
srandom(time(NULL));
bu0 = malloc(sizeof(ubit_t) * MAX_LEN_BITS);
diff --git a/utils/conv_gen.py b/utils/conv_gen.py
new file mode 100755
index 0000000..1377fca
--- /dev/null
+++ b/utils/conv_gen.py
@@ -0,0 +1,494 @@
+#!/usr/bin/python
+
+mod_license = """
+/*
+ * Copyright (C) 2011-2016 Sylvain Munaut <tnt(a)246tNt.com>
+ * Copyright (C) 2016 sysmocom s.f.m.c. GmbH
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+"""
+
+import sys, os, math
+
+class ConvolutionalCode(object):
+
+ def __init__(self, block_len, polys, name = "call-me", description = "LOL", puncture = []):
+ # Save simple params
+ self.block_len = block_len
+ self.k = 1
+ self.puncture = puncture
+ self.rate_inv = len(polys)
+
+ # Infos
+ self.name = name
+ self.description = description
+
+ # Handle polynoms (and check for recursion)
+ self.polys = [(1, 1) if x[0] == x[1] else x for x in polys]
+
+ # Determine the polynomial degree
+ for (x, y) in polys:
+ self.k = max(self.k, int(math.floor(math.log(max(x, y), 2))))
+ self.k = self.k + 1
+
+ self.poly_divider = 1
+ rp = [x[1] for x in self.polys if x[1] != 1]
+ if rp:
+ if not all([x == rp[0] for x in rp]):
+ raise ValueError("Bad polynoms: Can't have multiple different divider polynoms !")
+ if not all([x[0] == 1 for x in polys if x[1] == 1]):
+ raise ValueError("Bad polynoms: Can't have a '1' divider with a non '1' dividend in a recursive code")
+ self.poly_divider = rp[0]
+
+ @property
+ def recursive(self):
+ return self.poly_divider != 1
+
+ @property
+ def _state_mask(self):
+ return (1 << (self.k - 1)) - 1
+
+ def next_state(self, state, bit):
+ nb = combine(
+ (state << 1) | bit,
+ self.poly_divider,
+ self.k,
+ )
+ return ((state << 1) | nb) & self._state_mask
+
+ def next_term_state(self, state):
+ return (state << 1) & self._state_mask
+
+ def next_output(self, state, bit, ns = None):
+ # Next state bit
+ if ns is None:
+ ns = self.next_state(state, bit)
+
+ src = (ns & 1) | (state << 1)
+
+ # Scan polynoms
+ rv = []
+ for p_n, p_d in self.polys:
+ if self.recursive and p_d == 1:
+ o = bit # No choice ... (systematic output in recursive case)
+ else:
+ o = combine(src, p_n, self.k)
+ rv.append(o)
+
+ return rv
+
+ def next_term_output(self, state, ns = None):
+ # Next state bit
+ if ns is None:
+ ns = self.next_term_state(state)
+
+ src = (ns & 1) | (state << 1)
+
+ # Scan polynoms
+ rv = []
+ for p_n, p_d in self.polys:
+ if self.recursive and p_d == 1:
+ # Systematic output are replaced when in 'termination' mode
+ o = combine(src, self.poly_divider, self.k)
+ else:
+ o = combine(src, p_n, self.k)
+ rv.append(o)
+
+ return rv
+
+ def next(self, state, bit):
+ ns = self.next_state(state, bit)
+ nb = self.next_output(state, bit, ns = ns)
+ return ns, nb
+
+ def next_term(self, state):
+ ns = self.next_term_state(state)
+ nb = self.next_term_output(state, ns = ns)
+ return ns, nb
+
+ def _print_term(self, fi, num_states, pack = False):
+ d = []
+ for state in range(num_states):
+ x = pack(self.next_term_output(state)) if pack else self.next_term_state(state)
+ d.append("%d, " % x)
+ print >>fi, "\t%s" % ''.join(d)
+
+ def _print_x(self, fi, num_states, pack = False):
+ for state in range(num_states):
+ x0 = pack(self.next_output(state, 0)) if pack else self.next_state(state, 0)
+ x1 = pack(self.next_output(state, 1)) if pack else self.next_state(state, 1)
+ print >>fi, "\t{ %2d, %2d }," % (x0, x1)
+
+ def gen_tables(self, pref, fi):
+ pack = lambda n: sum([x << (self.rate_inv - i - 1) for i, x in enumerate(n)])
+ num_states = 1 << (self.k - 1)
+ print >>fi, "\nstatic const uint8_t %s_state[][2] = {" % self.name
+ self._print_x(fi, num_states)
+ print >>fi, "};\n\nstatic const uint8_t %s_output[][2] = {" % self.name
+ self._print_x(fi, num_states, pack)
+ print >>fi, "};"
+
+ if self.recursive:
+ print >>fi, "\nstatic const uint8_t %s_term_state[] = {" % self.name
+ self._print_term(fi, num_states)
+ print >>fi, "};\n\nstatic const uint8_t %s_term_output[] = {" % self.name
+ self._print_term(fi, num_states, pack)
+ print >>fi, "};"
+
+ if len(self.puncture):
+ print >>fi, "\nstatic const int %s_puncture[] = {" % self.name
+ for p in self.puncture:
+ print >>fi, "\t%d," % p
+ print >>fi, "};"
+
+ print >>fi, "\n/* %s */" % self.description
+ print >>fi, "const struct osmo_conv_code %s_%s = {" % (pref, self.name)
+ print >>fi, "\t.N = %d," % self.rate_inv
+ print >>fi, "\t.K = %d," % self.k
+ print >>fi, "\t.len = %d," % self.block_len
+ print >>fi, "\t.next_output = %s_output," % self.name
+ print >>fi, "\t.next_state = %s_state," % self.name
+ if self.recursive:
+ print >>fi, "\t.next_term_output = %s_term_output," % self.name
+ print >>fi, "\t.next_term_state = %s_term_state," % self.name
+ if len(self.puncture):
+ print >>fi, "\t.puncture = %s_puncture," % self.name
+ print >>fi, "};"
+
+poly = lambda *args: sum([(1 << x) for x in args])
+
+def combine(src, sel, nb):
+ x = src & sel
+ fn_xor = lambda x, y: x ^ y
+ return reduce(fn_xor, [(x >> n) & 1 for n in range(nb)])
+
+# Polynomials according to 3GPP TS 05.03 Annex B
+G0 = poly(0, 3, 4)
+G1 = poly(0, 1, 3, 4)
+G2 = poly(0, 2, 4)
+G3 = poly(0, 1, 2, 3, 4)
+G4 = poly(0, 2, 3, 5, 6)
+G5 = poly(0, 1, 4, 6)
+G6 = poly(0, 1, 2, 3, 4, 6)
+G7 = poly(0, 1, 2, 3, 6)
+
+CCH_poly = [
+ ( G0, 1 ),
+ ( G1, 1 )
+]
+
+xCCH = ConvolutionalCode(
+ 224,
+ CCH_poly,
+ name = "xcch",
+ description =""" *CCH convolutional code:
+ 228 bits blocks, rate 1/2, k = 5
+ G0 = 1 + D3 + D4
+ G1 = 1 + D + D3 + D4
+"""
+)
+
+CS2 = ConvolutionalCode(
+ 290,
+ CCH_poly,
+ puncture = [
+ 15, 19, 23, 27, 31, 35, 43, 47, 51, 55, 59, 63, 67, 71,
+ 75, 79, 83, 91, 95, 99, 103, 107, 111, 115, 119, 123, 127, 131,
+ 139, 143, 147, 151, 155, 159, 163, 167, 171, 175, 179, 187, 191, 195,
+ 199, 203, 207, 211, 215, 219, 223, 227, 235, 239, 243, 247, 251, 255,
+ 259, 263, 267, 271, 275, 283, 287, 291, 295, 299, 303, 307, 311, 315,
+ 319, 323, 331, 335, 339, 343, 347, 351, 355, 359, 363, 367, 371, 379,
+ 383, 387, 391, 395, 399, 403, 407, 411, 415, 419, 427, 431, 435, 439,
+ 443, 447, 451, 455, 459, 463, 467, 475, 479, 483, 487, 491, 495, 499,
+ 503, 507, 511, 515, 523, 527, 531, 535, 539, 543, 547, 551, 555, 559,
+ 563, 571, 575, 579, 583, 587, -1
+ ],
+ name = "cs2",
+ description =""" CS2 convolutional code:
+ G0 = 1 + D3 + D4
+ G1 = 1 + D + D3 + D4
+"""
+)
+
+CS3 = ConvolutionalCode(
+ 334,
+ CCH_poly,
+ puncture = [
+ 15, 17, 21, 23, 27, 29, 33, 35, 39, 41, 45, 47, 51, 53,
+ 57, 59, 63, 65, 69, 71, 75, 77, 81, 83, 87, 89, 93, 95,
+ 99, 101, 105, 107, 111, 113, 117, 119, 123, 125, 129, 131, 135, 137,
+ 141, 143, 147, 149, 153, 155, 159, 161, 165, 167, 171, 173, 177, 179,
+ 183, 185, 189, 191, 195, 197, 201, 203, 207, 209, 213, 215, 219, 221,
+ 225, 227, 231, 233, 237, 239, 243, 245, 249, 251, 255, 257, 261, 263,
+ 267, 269, 273, 275, 279, 281, 285, 287, 291, 293, 297, 299, 303, 305,
+ 309, 311, 315, 317, 321, 323, 327, 329, 333, 335, 339, 341, 345, 347,
+ 351, 353, 357, 359, 363, 365, 369, 371, 375, 377, 381, 383, 387, 389,
+ 393, 395, 399, 401, 405, 407, 411, 413, 417, 419, 423, 425, 429, 431,
+ 435, 437, 441, 443, 447, 449, 453, 455, 459, 461, 465, 467, 471, 473,
+ 477, 479, 483, 485, 489, 491, 495, 497, 501, 503, 507, 509, 513, 515,
+ 519, 521, 525, 527, 531, 533, 537, 539, 543, 545, 549, 551, 555, 557,
+ 561, 563, 567, 569, 573, 575, 579, 581, 585, 587, 591, 593, 597, 599,
+ 603, 605, 609, 611, 615, 617, 621, 623, 627, 629, 633, 635, 639, 641,
+ 645, 647, 651, 653, 657, 659, 663, 665, 669, 671, -1
+ ],
+ name = "cs3",
+ description =""" CS3 convolutional code:
+ G0 = 1 + D3 + D4
+ G1 = 1 + D + D3 + D4
+"""
+)
+
+TCH_AFS_12_2 = ConvolutionalCode(
+ 250,
+ [
+ ( 1, 1 ),
+ ( G1, G0 ),
+ ],
+ puncture = [
+ 321, 325, 329, 333, 337, 341, 345, 349, 353, 357, 361, 363,
+ 365, 369, 373, 377, 379, 381, 385, 389, 393, 395, 397, 401,
+ 405, 409, 411, 413, 417, 421, 425, 427, 429, 433, 437, 441,
+ 443, 445, 449, 453, 457, 459, 461, 465, 469, 473, 475, 477,
+ 481, 485, 489, 491, 493, 495, 497, 499, 501, 503, 505, 507,
+ -1
+ ],
+ name = 'tch_afs_12_2',
+ description = """TCH/AFS 12.2 convolutional code:
+ 250 bits block, rate 1/2, punctured
+ G0/G0 = 1
+ G1/G0 = 1 + D + D3 + D4 / 1 + D3 + D4
+"""
+)
+
+TCH_AFS_10_2 = ConvolutionalCode(
+ 210,
+ [
+ ( G1, G3 ),
+ ( G2, G3 ),
+ ( 1, 1 ),
+ ],
+ puncture = [
+ 1, 4, 7, 10, 16, 19, 22, 28, 31, 34, 40, 43,
+ 46, 52, 55, 58, 64, 67, 70, 76, 79, 82, 88, 91,
+ 94, 100, 103, 106, 112, 115, 118, 124, 127, 130, 136, 139,
+ 142, 148, 151, 154, 160, 163, 166, 172, 175, 178, 184, 187,
+ 190, 196, 199, 202, 208, 211, 214, 220, 223, 226, 232, 235,
+ 238, 244, 247, 250, 256, 259, 262, 268, 271, 274, 280, 283,
+ 286, 292, 295, 298, 304, 307, 310, 316, 319, 322, 325, 328,
+ 331, 334, 337, 340, 343, 346, 349, 352, 355, 358, 361, 364,
+ 367, 370, 373, 376, 379, 382, 385, 388, 391, 394, 397, 400,
+ 403, 406, 409, 412, 415, 418, 421, 424, 427, 430, 433, 436,
+ 439, 442, 445, 448, 451, 454, 457, 460, 463, 466, 469, 472,
+ 475, 478, 481, 484, 487, 490, 493, 496, 499, 502, 505, 508,
+ 511, 514, 517, 520, 523, 526, 529, 532, 535, 538, 541, 544,
+ 547, 550, 553, 556, 559, 562, 565, 568, 571, 574, 577, 580,
+ 583, 586, 589, 592, 595, 598, 601, 604, 607, 609, 610, 613,
+ 616, 619, 621, 622, 625, 627, 628, 631, 633, 634, 636, 637,
+ 639, 640, -1
+ ],
+ name = 'tch_afs_10_2',
+ description = """TCH/AFS 10.2 kbits convolutional code:
+ G1/G3 = 1 + D + D3 + D4 / 1 + D + D2 + D3 + D4
+ G2/G3 = 1 + D2 + D4 / 1 + D + D2 + D3 + D4
+ G3/G3 = 1
+"""
+)
+
+TCH_AFS_7_95 = ConvolutionalCode(
+ 165,
+ [
+ ( 1, 1 ),
+ ( G5, G4 ),
+ ( G6, G4 ),
+ ],
+ puncture = [
+ 1, 2, 4, 5, 8, 22, 70, 118, 166, 214, 262, 310,
+ 317, 319, 325, 332, 334, 341, 343, 349, 356, 358, 365, 367,
+ 373, 380, 382, 385, 389, 391, 397, 404, 406, 409, 413, 415,
+ 421, 428, 430, 433, 437, 439, 445, 452, 454, 457, 461, 463,
+ 469, 476, 478, 481, 485, 487, 490, 493, 500, 502, 503, 505,
+ 506, 508, 509, 511, 512, -1
+ ],
+ name = 'tch_afs_7_95',
+ description = """TCH/AFS 7.95 kbits convolutional code:
+ G4/G4 = 1
+ G5/G4 = 1 + D + D4 + D6 / 1 + D2 + D3 + D5 + D6
+ G6/G4 = 1 + D + D2 + D3 + D4 + D6 / 1 + D2 + D3 + D5 + D6
+"""
+)
+
+TCH_AFS_7_4 = ConvolutionalCode(
+ 154,
+ [
+ ( G1, G3 ),
+ ( G2, G3 ),
+ ( 1, 1 ),
+ ],
+ puncture = [
+ 0, 355, 361, 367, 373, 379, 385, 391, 397, 403, 409, 415,
+ 421, 427, 433, 439, 445, 451, 457, 460, 463, 466, 468, 469,
+ 471, 472, -1
+ ],
+ name = 'tch_afs_7_4',
+ description = """TCH/AFS 7.4 kbits convolutional code:
+ G1/G3 = 1 + D + D3 + D4 / 1 + D + D2 + D3 + D4
+ G2/G3 = 1 + D2 + D4 / 1 + D + D2 + D3 + D4
+ G3/G3 = 1
+"""
+)
+
+TCH_AFS_6_7 = ConvolutionalCode(
+ 140,
+ [
+ ( G1, G3 ),
+ ( G2, G3 ),
+ ( 1, 1 ),
+ ( 1, 1 ),
+ ],
+ puncture = [
+ 1, 3, 7, 11, 15, 27, 39, 55, 67, 79, 95, 107,
+ 119, 135, 147, 159, 175, 187, 199, 215, 227, 239, 255, 267,
+ 279, 287, 291, 295, 299, 303, 307, 311, 315, 319, 323, 327,
+ 331, 335, 339, 343, 347, 351, 355, 359, 363, 367, 369, 371,
+ 375, 377, 379, 383, 385, 387, 391, 393, 395, 399, 401, 403,
+ 407, 409, 411, 415, 417, 419, 423, 425, 427, 431, 433, 435,
+ 439, 441, 443, 447, 449, 451, 455, 457, 459, 463, 465, 467,
+ 471, 473, 475, 479, 481, 483, 487, 489, 491, 495, 497, 499,
+ 503, 505, 507, 511, 513, 515, 519, 521, 523, 527, 529, 531,
+ 535, 537, 539, 543, 545, 547, 549, 551, 553, 555, 557, 559,
+ 561, 563, 565, 567, 569, 571, 573, 575, -1
+ ],
+ name = 'tch_afs_6_7',
+ description = """TCH/AFS 6.7 kbits convolutional code:
+ G1/G3 = 1 + D + D3 + D4 / 1 + D + D2 + D3 + D4
+ G2/G3 = 1 + D2 + D4 / 1 + D + D2 + D3 + D4
+ G3/G3 = 1
+ G3/G3 = 1
+"""
+)
+
+TCH_AFS_5_9 = ConvolutionalCode(
+ 124,
+ [
+ ( G4, G6 ),
+ ( G5, G6 ),
+ ( 1, 1),
+ ( 1, 1),
+ ],
+ puncture = [
+ 0, 1, 3, 5, 7, 11, 15, 31, 47, 63, 79, 95,
+ 111, 127, 143, 159, 175, 191, 207, 223, 239, 255, 271, 287,
+ 303, 319, 327, 331, 335, 343, 347, 351, 359, 363, 367, 375,
+ 379, 383, 391, 395, 399, 407, 411, 415, 423, 427, 431, 439,
+ 443, 447, 455, 459, 463, 467, 471, 475, 479, 483, 487, 491,
+ 495, 499, 503, 507, 509, 511, 512, 513, 515, 516, 517, 519,
+ -1
+ ],
+ name = 'tch_afs_5_9',
+ description = """TCH/AFS 5.9 kbits convolutional code:
+ 124 bits
+ G4/G6 = 1 + D2 + D3 + D5 + D6 / 1 + D + D2 + D3 + D4 + D6
+ G5/G6 = 1 + D + D4 + D6 / 1 + D + D2 + D3 + D4 + D6
+ G6/G6 = 1
+ G6/G6 = 1
+"""
+)
+
+TCH_AFS_5_15 = ConvolutionalCode(
+ 109,
+ [
+ ( G1, G3 ),
+ ( G1, G3 ),
+ ( G2, G3 ),
+ ( 1, 1 ),
+ ( 1, 1 ),
+ ],
+ puncture = [
+ 0, 4, 5, 9, 10, 14, 15, 20, 25, 30, 35, 40,
+ 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160,
+ 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280,
+ 290, 300, 310, 315, 320, 325, 330, 334, 335, 340, 344, 345,
+ 350, 354, 355, 360, 364, 365, 370, 374, 375, 380, 384, 385,
+ 390, 394, 395, 400, 404, 405, 410, 414, 415, 420, 424, 425,
+ 430, 434, 435, 440, 444, 445, 450, 454, 455, 460, 464, 465,
+ 470, 474, 475, 480, 484, 485, 490, 494, 495, 500, 504, 505,
+ 510, 514, 515, 520, 524, 525, 529, 530, 534, 535, 539, 540,
+ 544, 545, 549, 550, 554, 555, 559, 560, 564, -1
+ ],
+ name = 'tch_afs_5_15',
+ description = """TCH/AFS 5.15 kbits convolutional code:
+ G1/G3 = 1 + D + D3 + D4 / 1 + D + D2 + D3 + D4
+ G1/G3 = 1 + D + D3 + D4 / 1 + D + D2 + D3 + D4
+ G2/G3 = 1 + D2 + D4 / 1 + D + D2 + D3 + D4
+ G3/G3 = 1
+ G3/G3 = 1
+"""
+)
+
+TCH_AFS_4_75 = ConvolutionalCode(
+ 101,
+ [
+ ( G4, G6 ),
+ ( G4, G6 ),
+ ( G5, G6 ),
+ ( 1, 1 ),
+ ( 1, 1 ),
+ ],
+ puncture = [
+ 0, 1, 2, 4, 5, 7, 9, 15, 25, 35, 45, 55,
+ 65, 75, 85, 95, 105, 115, 125, 135, 145, 155, 165, 175,
+ 185, 195, 205, 215, 225, 235, 245, 255, 265, 275, 285, 295,
+ 305, 315, 325, 335, 345, 355, 365, 375, 385, 395, 400, 405,
+ 410, 415, 420, 425, 430, 435, 440, 445, 450, 455, 459, 460,
+ 465, 470, 475, 479, 480, 485, 490, 495, 499, 500, 505, 509,
+ 510, 515, 517, 519, 520, 522, 524, 525, 526, 527, 529, 530,
+ 531, 532, 534, -1
+ ],
+ name = 'tch_afs_4_75',
+ description = """TCH/AFS 4.75 kbits convolutional code:
+ G4/G6 = 1 + D2 + D3 + D5 + D6 / 1 + D + D2 + D3 + D4 + D6
+ G4/G6 = 1 + D2 + D3 + D5 + D6 / 1 + D + D2 + D3 + D4 + D6
+ G5/G6 = 1 + D + D4 + D6 / 1 + D + D2 + D3 + D4 + D6
+ G6/G6 = 1
+ G6/G6 = 1
+"""
+)
+
+def gen_c(dest, pref, code):
+ f = open(os.path.join(dest, 'conv_' + code.name + '_gen.c'), 'w')
+ print >>f, mod_license
+ print >>f, "#include <stdint.h>"
+ print >>f, "#include <osmocom/core/conv.h>"
+ code.gen_tables(pref, f)
+
+if __name__ == '__main__':
+ print >>sys.stderr, "Generating convolutional codes..."
+ prefix = "gsm0503"
+ path = sys.argv[1] if len(sys.argv) > 1 else os.getcwd()
+ gen_c(path, prefix, xCCH)
+ gen_c(path, prefix, CS2)
+ gen_c(path, prefix, CS3)
+ gen_c(path, prefix, TCH_AFS_12_2)
+ gen_c(path, prefix, TCH_AFS_10_2)
+ gen_c(path, prefix, TCH_AFS_7_95)
+ gen_c(path, prefix, TCH_AFS_7_4)
+ gen_c(path, prefix, TCH_AFS_6_7)
+ gen_c(path, prefix, TCH_AFS_5_9)
+ gen_c(path, prefix, TCH_AFS_5_15)
+ gen_c(path, prefix, TCH_AFS_4_75)
+ print >>sys.stderr, "\tdone."
--
2.8.1
