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Diffstat (limited to 'include/osmocom/gsm/l1sap.h')
-rw-r--r-- | include/osmocom/gsm/l1sap.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/osmocom/gsm/l1sap.h b/include/osmocom/gsm/l1sap.h new file mode 100644 index 00000000..9547c325 --- /dev/null +++ b/include/osmocom/gsm/l1sap.h @@ -0,0 +1,53 @@ +#ifndef _OSMOCOM_L1SAP_H +#define _OSMOCOM_L1SAP_H + +#include <osmocom/core/prim.h> + +/*! \brief LAPDm related primitives (L1<->L2 SAP) */ +enum osmo_ph_prim { + PRIM_PH_DATA, /*!< \brief PH-DATA */ + PRIM_PH_RACH, /*!< \brief PH-RANDOM_ACCESS */ + PRIM_PH_CONN, /*!< \brief PH-CONNECT */ + PRIM_PH_EMPTY_FRAME, /*!< \brief PH-EMPTY_FRAME */ + PRIM_PH_RTS, /*!< \brief PH-RTS */ +}; + +/*! \brief for PH-RANDOM_ACCESS.req */ +struct ph_rach_req_param { + uint8_t ra; /*!< \brief Random Access */ + uint8_t ta; /*!< \brief Timing Advance */ + uint8_t tx_power; /*!< \brief Transmit Power */ + uint8_t is_combined_ccch;/*!< \brief Are we using a combined CCCH? */ + uint16_t offset; /*!< \brief Timing Offset */ +}; + +/*! \brief for PH-RANDOM_ACCESS.ind */ +struct ph_rach_ind_param { + uint8_t ra; /*!< \brief Random Access */ + uint8_t acc_delay; /*!< \brief Delay in bit periods */ + uint32_t fn; /*!< \brief GSM Frame Number at time of RA */ +}; + +/*! \brief for PH-[UNIT]DATA.{req,ind} */ +struct ph_data_param { + uint8_t link_id; /*!< \brief Link Identifier (Like RSL) */ + uint8_t chan_nr; /*!< \brief Channel Number (Like RSL) */ +}; + +/*! \brief for PH-CONN.ind */ +struct ph_conn_ind_param { + uint32_t fn; /*!< \brief GSM Frame Number */ +}; + +/*! \brief primitive header for LAPDm PH-SAP primitives */ +struct osmo_phsap_prim { + struct osmo_prim_hdr oph; /*!< \brief generic primitive header */ + union { + struct ph_data_param data; + struct ph_rach_req_param rach_req; + struct ph_rach_ind_param rach_ind; + struct ph_conn_ind_param conn_ind; + } u; /*!< \brief request-specific data */ +}; + +#endif /* _OSMOCOM_L1SAP_H */ |