diff options
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_08_58.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_08_58.h b/include/osmocom/gsm/protocol/gsm_08_58.h index e5ff4646..c7a7d8aa 100644 --- a/include/osmocom/gsm/protocol/gsm_08_58.h +++ b/include/osmocom/gsm/protocol/gsm_08_58.h @@ -25,10 +25,30 @@ #include <stdint.h> +#include <osmocom/core/endian.h> + /*! \addtogroup rsl * @{ * \file gsm_08_58.h */ +/* Link Identifier 9.3.2 */ +union abis_rsl_link_id { +#if OSMO_IS_BIG_ENDIAN + uint8_t cbits:2, + na:1, + reserved:2; + sapi:3; +#elif OSMO_IS_LITTLE_ENDIAN + uint8_t sapi:3, + reserved:2, + na:1, + cbits:2; +#endif + uint8_t link_id; +} __attribute__ ((packed)); +#define ABIS_RSL_LINK_ID_CBITS_FACCH_SDCCH 0x00 +#define ABIS_RSL_LINK_ID_CBITS_SACCH 0x01 + /*! RSL common header */ struct abis_rsl_common_hdr { uint8_t msg_discr; /*!< message discriminator (ABIS_RSL_MDISC_*) */ @@ -42,7 +62,10 @@ struct abis_rsl_rll_hdr { uint8_t ie_chan; /*!< \ref RSL_IE_CHAN_NR (tag) */ uint8_t chan_nr; /*!< RSL channel number (value) */ uint8_t ie_link_id; /*!< \ref RSL_IE_LINK_IDENT (tag) */ - uint8_t link_id; /*!< RSL link identifier (value) */ + union { + uint8_t link_id; /* API backward compat */ + union abis_rsl_link_id link_id_fields; /*!< RSL link identifier (value) */ + }; uint8_t data[0]; /*!< message payload data */ } __attribute__ ((packed)); |