diff options
| author | Max <msuraev@sysmocom.de> | 2018-11-07 13:16:54 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-11-18 20:14:06 +0000 |
| commit | aa934630530af05a84b62b204ce4da7688c5e3ad (patch) | |
| tree | 34eb73668b997ca14a5d81b286a6b6d23cda6e0c /include/osmocom/gsm/gsm0808_utils.h | |
| parent | c0d1de36f3e378364b1c02e98a3870394e3d457e (diff) | |
Update 3GPP TS 08.08 Cause handling
* add Class definitions
* add helper to check for extended bit
* add helper to get Cause's Class
* use enum in gsm0808_cause_name() and gsm0808_create_cipher_reject() to
avoid confusion between class and cause
* update gsm0808_create_cipher_reject() comments
Change-Id: I31b31dfc22eb4b6b07089e1255246ac458125340
Related: OS#3187
Diffstat (limited to 'include/osmocom/gsm/gsm0808_utils.h')
| -rw-r--r-- | include/osmocom/gsm/gsm0808_utils.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/osmocom/gsm/gsm0808_utils.h b/include/osmocom/gsm/gsm0808_utils.h index f70dbdb6..b56e2635 100644 --- a/include/osmocom/gsm/gsm0808_utils.h +++ b/include/osmocom/gsm/gsm0808_utils.h @@ -107,7 +107,20 @@ int gsm0808_speech_codec_from_chan_type(struct gsm0808_speech_codec *sc, uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(const struct gsm48_multi_rate_conf *cfg, bool fr); void gsm48_mr_cfg_from_gsm0808_sc_cfg(struct gsm48_multi_rate_conf *cfg, uint16_t s15_s0); -/*! Return 3GPP TS 48.008 3.2.2.49 Current Channel Type 1 from enum gsm_chan_t. */ +/*! \returns 3GPP TS 08.08 §3.2.2.5 Class of a given Cause */ +static inline enum gsm0808_cause_class gsm0808_cause_class(enum gsm0808_cause cause) +{ + return (cause << 1) >> 4; +} + +/*! \returns true if 3GPP TS 08.08 §3.2.2.5 Class has extended bit set */ +static inline bool gsm0808_cause_ext(enum gsm0808_cause cause) +{ + /* check that cause looks like 1XXX0000 where XXX represent class */ + return (cause & 0x80) && !(cause & 0x0F); +} + +/*! \returns 3GPP TS 48.008 3.2.2.49 Current Channel Type 1 from enum gsm_chan_t. */ static inline uint8_t gsm0808_current_channel_type_1(enum gsm_chan_t type) { switch (type) { |