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* comments: gsm0808_utils: mention various 3GPP specsPhilipp Maier2017-06-231-0/+5
| | | | | Tweaked-by: nhofmeyr Change-Id: I990dfe9eeaf96f377484b828143935240a937226
* gsm0808: fix length check of the element decoder functionsPhilipp Maier2017-06-231-6/+6
| | | | | | | | | | | | | | | The length check of the decoder functions is not entirely correct. The check also checks for values below zero, which does not make sense, since the length is encoded as uint8_t. For some elements a minimum length is known (in most cases this is 1), so checking for zero is sufficient but in some cases (e.g. channel type) the spec mentions a minimum and maximum length. This is now also reflected in the code. Tweaked-by: nhofmeyr Change-Id: I78bc887f68d1963d28c6fcd631ac20ccd893d6d6
* pseudotalloc: Add simplistic implementation of talloc_asprintfPau Espin Pedrol2017-06-222-1/+17
| | | | | | | | | | | fsm.c uses this function. When compiled with --enable-embedded, it triggers a warning: fsm.c: In function 'osmo_fsm_inst_alloc': fsm.c:213:4: warning: implicit declaration of function 'talloc_asprintf' [-Wimplicit-function-declaration] fi->name = talloc_asprintf(fi, "%s(%s)", fsm->name, id); Change-Id: I61cd83d4c8570af1e452c945ac6f194baf7e6ac4
* fsm.c: Fix compilation warning: Use PRIu32 for uint32_tPau Espin Pedrol2017-06-221-3/+4
| | | | Change-Id: I4c441b20b250c34656f1e8330d6bb4b1ce2b8423
* timer_gettimeofday.c: Fix implicit use of timeraddPau Espin Pedrol2017-06-221-0/+1
| | | | | | | | | timer_gettimeofday.c: In function 'osmo_gettimeofday_override_add': timer_gettimeofday.c:54:2: error: implicit declaration of function 'timeradd' [-Werror=implicit-function-declaration] timeradd(&osmo_gettimeofday_override_time, &val, ^ Change-Id: Iced451be255cfde8a6cf38380bef71ef29673994
* gsm0808: add function gsm0808_speech_codec_from_chan_type()Philipp Maier2017-06-222-0/+55
| | | | | | | | | | | | | | | | The contents of the speech codec element (struct gsm0808_speech_codec), that is also used in the speech codec list element (struct gsm0808_speech_codec_list) can be generated directly from the permitted speech parameter in the channel type field (struct gsm0808_channel_type) when full AoIP with compressed speech via RTP/UDP/IP is assumed and when the codec configuration on the air interface exactly matches the codec configuration on the IP backhaul. This patch adds a function that can be used as a helper to fill out spech codec fields by only giving a permitted speech parameter as input. Change-Id: I257c972e9fdf0dfe940a8d483447085bd62e50a2
* gsm0808: add function gsm0808_chan_type_to_speech_code()Philipp Maier2017-06-222-0/+38
| | | | | | | | | | | | The permitted speech field used in channel type element (struct gsm0808_channel_type) uses a different representation as the type field in the speech codec element (struct gsm0808_speech_codec) This patch adds a function to convert from permitted speech to speech codec type. Change-Id: Ib26a9c20864459b2baaa04f49b6e7902ba44b7cb
* gsm0808: fix AoIP speech codec element parser/generatorPhilipp Maier2017-06-221-18/+82
| | | | | | | | | | The implementation of the parser/generator for the speech codec information element slightly wrong, making it impossible to use it properly. (See also: 3GPP TS 48.008, 3.2.2.103) Change-Id: Idabb0f9620659557672e1c6b90c75481192e5c89
* src/Makefile.am: fix build: use AM_CFLAGS, not CFLAGSNeels Hofmeyr2017-06-191-4/+4
| | | | | | | | | This allows passing 'make CFLAGS+="..."' without breaking the build. Suggested-by: zecke Change-Id: I0628a9c739cded771605f5c55df7f21cb07beb3b
* core/conv/conv_acc.c: use static allocation for trellisVadim Yanitskiy2017-06-191-27/+23
| | | | | | | | | | | Allocation of a new memory is an expensive operation, which takes place when it's initially unknown, how much memory will we need, or in order to decrease total memory usage. The trellis struct wasn't require dynamic allocation itself, so let's allocate one statically inside the vdecoder structure. Change-Id: Ib8e448823ca5548a05a45824b0b1c06743dfe5a4
* core/conv/conv_acc.c: use static allocation for vdecoderVadim Yanitskiy2017-06-191-23/+19
| | | | | | | | | | | Allocation of a new memory is an expensive operation, which takes place when it's initially unknown, how much memory will we need, or in order to decrease total memory usage. The vdecoder struct wasn't require dynamic allocation itself, so let's use static allocation in order to increase performance. Change-Id: Id1b140d3cb61db7352dcfc217a8fc36091e945ab
* core/conv/conv_acc.c: delete reset_decoder()Vadim Yanitskiy2017-06-191-20/+13
| | | | | | | | | | | | | | | Currently this implementation exposes nothing than osmo_conv_decode_acc(), so it wasn't possible to call reset_decoder() from outside. The method itself was used to initialize accumulated path metrics and the starting state of encoder. Now this code is moved to generate_trellis(). Moreover, setting accumulated path metrics inside existing loop is a bit faster that calling memset(). Change-Id: I8f17cebf468cf0106927ccee091cfb2896649cb2
* core/conv/conv_acc.c: drop unused structure memberVadim Yanitskiy2017-06-191-2/+0
| | | | Change-Id: I81f7c35abf424f501ca53d6984c0d56f7936984b
* core/conv: update description headers for conv_acc_*Vadim Yanitskiy2017-06-195-5/+10
| | | | Change-Id: I00154776c8e7d346abcbaf9048ce04d9488bb458
* core/conv: use proper filenamesVadim Yanitskiy2017-06-196-10/+10
| | | | | | | | | | We already have generic convolutional transcoding implementation written by Sylvain Munaut and named 'conv.c', so 'viterbi_*' names looked a bit confusing. Let's use a single naming scheme for Viterbi related code. Change-Id: I61062a8d1fbf5f5fc85b4fac58dc4e9fa8b5ef90
* Move NUM_BYTES macro to core libraryMax2017-06-191-1/+1
| | | | | | | | | It's universally useful so it make sense to have it in the shared core: * move macro from libosmocoding to libosmocore * add OSMO_ prefix * add doxygen docs Change-Id: I5386ba3e1f1cc153ba96c29dc71c9075a052aa02
* card_fs_uicc.c: Fix unused compilation warningPau Espin Pedrol2017-06-181-1/+1
| | | | | | | | This array of bytes is not yet used but is referring to some specs. They may be used in the future, so leave it there but mark it explicitly as unused. Change-Id: I0a61d17f9989ecddafbc68d4b9446853e4c15159
* gsm/gsm48.c: drop useless assignmentVadim Yanitskiy2017-06-131-1/+0
| | | | Change-Id: I96c1ba70e332199a4ca95e827a7562f953975af4
* vty/command.c: drop useless assignmentVadim Yanitskiy2017-06-131-1/+1
| | | | Change-Id: Ia30b6481ee570c6cf3e3b38e7a78028c66c036b7
* core/conv/conv.c: drop useless assignmentVadim Yanitskiy2017-06-131-1/+1
| | | | Change-Id: I8c3aa5ec100abacf93da1493aa134e42bf612206
* gb/gprs_bssgp.c: avoid valueless goto usageVadim Yanitskiy2017-06-131-10/+3
| | | | Change-Id: I0c2aaf1ab462c923d62232f1a63fae1e4eb18b4d
* sim/core.c: drop useless double assignmentVadim Yanitskiy2017-06-131-1/+1
| | | | Change-Id: I3bfcabd80b57aeb7f110b306350802e6e82c847a
* core/conv/viterbi.c: fix possible NULL-pointer referenceVadim Yanitskiy2017-06-131-3/+16
| | | | Change-Id: I36012d4443d97470050cdf9638a9d4cf67ea3b40
* update/extend doxygen documentationHarald Welte2017-06-1262-150/+826
| | | | | | | | | It's a pity that even with this patch we still are fare away from having the whole API documented. However, at least we have a more solid foundation. Updates not only extend the documentation, but also make sure it is rendered properly in the doxygen HTML. Change-Id: I1344bd1a6869fb00de7c1899a8db93bba9bafce3
* Update doxygen main page for libosmo{core,gsm,vty}Harald Welte2017-06-123-0/+36
| | | | | | | We should link to project homepage as well as put the library into the wider Osmocom context. Change-Id: I07ca57ecef0f36c87c9ebacc1e1507c217bdb25b
* gsm0503_coding: Mark gsm0503_mcs_{ul,dl}_codes as constHarald Welte2017-06-121-6/+6
| | | | | | | The table describing the various MCS convolutional codes are constant data and should be marked as such. Change-Id: I4918521ee4572a67cbee5f9b49257fc5bfcde511
* gsm0503_interleaving: Mark input arguments as 'const *'Harald Welte2017-06-121-5/+5
| | | | | | | The interleaving/deinterleaving functions were missing 'const' qualifiers on their input data buffers Change-Id: I2118c34a6353167787b23f877f1d81d60151aaf9
* Add doxygen documentation to libosmocodingHarald Welte2017-06-125-30/+414
| | | | | | | This adds the minimum amount of API documentation that we should have on all our code, particularly new code merged into a library. Change-Id: I526804f64313867913574e50e5b9e9205ad3aa74
* gsm0503_{coding,mapping}: Mark input arguments as 'const'Harald Welte2017-06-122-55/+54
| | | | | | | | It is generally our coding style to mark pointers to constant input data as 'const *'. For some reason the gsm0503 coding and mapping was not adhering to this, so let's bring it into compliance. Change-Id: Id8731d7ae6171dff94741b6ddbb95ab5f03bfd4e
* Add header file with definitions for GSM TS 04.14 / 3GPP TS 44.014Harald Welte2017-06-123-1/+23
| | | | Change-Id: I1f4fc2761b55a4f83544c1c3793ab67fec9fc120
* Include codec.h file from codec C filesHarald Welte2017-06-093-0/+3
| | | | | | | failure to do so would prevent the compiler from catching inconsistencies between declaration and definition. Change-Id: I88617c97adcff328292e501fd5d254eeae96a660
* osmo_{fr,hr}_check_sid(): Use const input argumentHarald Welte2017-06-092-4/+4
| | | | Change-Id: If779cce63f06a18d4f3b0cb3d6dd7a99aa52a646
* Fix wrongful GSM FR codec SID frame detection in DTX.Jean-Francois Dionne2017-06-091-10/+10
| | | | | | | | Based on ETSI TS 101 318 section 5.1.2 the 95 bits SID code word is not detected correctly due to a wrongful offset in the bits location indexes. Change-Id: I45d98c6edf267f313883503a65385190ffbc65ca
* core/conv: do not mix up AVX and SSE codeVadim Yanitskiy2017-05-296-570/+740
| | | | | | | | | | | | | | | | | | | | | | | According to GCC's wiki: If you specify command-line switches such as -msse, the compiler could use the extended instruction sets even if the built-ins are not used explicitly in the program. For this reason, applications that perform run-time CPU detection must compile separate files for each supported architecture, using the appropriate flags. In particular, the file containing the CPU detection code should be compiled without these options. So, this change introduces a separate Viterbi implementation, which is almost the same as previous one, but is being compiled with -mavx2. This implementation will be only used by CPUs with both SSE and AVX support: SSE3 and AVX2: viterbi_sse_avx.c SSE3 only: viterbi_sse.c Generic: viterbi_generic.c Change-Id: I042cc76258df7e4c6c90a73af3d0a6e75999b2b0
* core/conv: rename viterbi_gen.c to viterbi_generic.cVadim Yanitskiy2017-05-292-1/+1
| | | | | | | Let's avoid confusion with generated files which have ending with _gen.* as well. Change-Id: I3ecd8f9e73c05236f2cdc186f58b3d0ba552283f
* socket: Add osmo_sock_init2_ofd() functionPau Espin Pedrol2017-05-261-0/+23
| | | | | | Will be used by osmo-bts-trx Change-Id: I3c655a4af64fb80497a5aaa811cce8005dba9cd9
* Add human-readable names for signal_nsMax2017-05-242-0/+11
| | | | | Change-Id: Id664355eb8305fb287e4dae0800fb20dc2f9b8cd Related: SYS#3610
* Distinguish between unsupported and invalid MCSMax2017-05-242-59/+63
| | | | | | | | | | | | | | | | | | Previously MCS0 was incorrectly set for some of type1 header values while according to 3GPP TS 44.060 it can only be set for type3. Fix this: * use EGPRS_MCS* constants instead of magic values * do not set MCS0 for reserved bits values in EGPRS header type1 * return different error codes for invalid and unsupported MCS as well as for other decoding errors Note: there's no need to adjust tests because MCS0 decoding is not supported but it's better to explicitly distinguish between unsupported and invalid values nevertheless. Change-Id: Id665d5c0cf50efa18b1bcbf4f17359418a380f9e Related: OS#1524
* core/conv: add x86 SSE support for Viterbi decoderTom Tsou2017-05-244-10/+748
| | | | | | | | | | | | | | Fast convolutional decoding is provided through x86 intrinsic based SSE operations. SSE3, found on virtually all modern x86 processors, is the minimal requirement. SSE4.1 and AVX2 are used if available. Also, the original code was extended with runtime SIMD detection, so only supported extensions will be used by target CPU. It makes the library more partable, what is very important for binary packages distribution. Runtime SIMD detection is currently implemented through the __builtin_cpu_supports call. Change-Id: I1da6d71ed0564f1d684f3a836e998d09de5f0351
* src/select.c: Don't #include <sys/select.h> if it doesn't existHarald Welte2017-05-171-1/+1
| | | | | | | | | We have to #include <sys/select.h> inside the block protected by HAVE_SYS_SELECT_H, otherwise it will fail on (embedded) builds where that file doesn't exist, such as the arm-none-eabi target on Debian stable and Ubuntu 16.04. Change-Id: I82a2dcbc55b6ee0e914881c5e09b80506c5de4f2
* add libpseudotalloc as super-simplistic talloc replacementHarald Welte2017-05-177-0/+134
| | | | | | | | | | | In tightly embedded builds (--enable-embedded), we want the ability to replace talloc with a very simple heap allocator to avoid the complexity of talloc without modifying all our code that assumes talloc. This will break the hierarchical notion of the allocator, but libosmo{core,gsm,coding,codec} don't rely on that anyway. Change-Id: Ie341034076f242a813f081919dd09d845775ad35
* sercomm: More API documentationHarald Welte2017-05-171-4/+35
| | | | Change-Id: I5d5002ceedd10e10d772693478f4f9cab6b1290a
* sercomm: Better integration of driver interfaceHarald Welte2017-05-171-28/+17
| | | | | | | | | We cannot assume a certain UART API like uart_baudrate() which only exists in OsmocomBB. Rather, use generic function prototypes (sercomm_drv_*) which are to be provided by the application / environment to the sercomm core. Change-Id: I01ea3067baf1791000c1a7d537ccce496a1ab1ee
* sercomm: Include in libosmocore MakefileHarald Welte2017-05-172-4/+4
| | | | Change-Id: If9d50d634381f43b2c67b97fea36a462a66e4559
* src/panic.c: Remove unneeded #include of gsm_utils.hHarald Welte2017-05-171-1/+0
| | | | Change-Id: I25cea5d3a4a900550e8f18c2bea392e642bfb191
* sercomm: Rename sercomm_lock() to sercomm_drv_lock()Harald Welte2017-05-171-18/+15
| | | | | | | | The user of the code is supposed to provide a "driver" implementing those calls according to the specific target architecture/hardware. This only applies to non-host (i.e. embedded) builds Change-Id: I9a6848f23b70fc32f4de10149d857374f76f000d
* sercomm: remove unrequired helper functionsHarald Welte2017-05-171-13/+0
| | | | | | | | osmo_sercomm_{bind,get}_uart() are not really needed anymore, as sercomm_inst is public and thus the user can access the uart_id member directly. Change-Id: I6d57709c3764036046202f16a26c9eb87426c8d1
* sercomm: Move HDLC related defines into C fileHarald Welte2017-05-171-0/+7
| | | | | | | Those values are not relevant to the sercomm user, only to the implementation and thus can remain inside sercomm.c Change-Id: I5700a45985b7c119c6338932171aae62ee4e2d22
* sercomm: Add doxygen-style documentation to public APIHarald Welte2017-05-171-3/+13
| | | | Change-Id: I2d8b11905692920d328262836420f01305be489e
* sercomm: include header file from osmocom/coreHarald Welte2017-05-171-2/+1
| | | | Change-Id: Iff5ff3a51d7781bcfb3aff0839b733bc7a71b7e5
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