diff options
| -rw-r--r-- | include/osmocom/gsm/protocol/gsm_04_08.h | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_04_08.h b/include/osmocom/gsm/protocol/gsm_04_08.h index 0e027440..4a821cca 100644 --- a/include/osmocom/gsm/protocol/gsm_04_08.h +++ b/include/osmocom/gsm/protocol/gsm_04_08.h @@ -460,10 +460,51 @@ struct gsm48_rach_control { cell_bar :1, tx_integer :4, max_trans :2; - uint8_t t2; - uint8_t t3; + uint8_t t2; /* ACC 8-15 barred flags */ + uint8_t t3; /* ACC 0-7 barred flags */ } __attribute__ ((packed)); +/* + * Mark an Access Control Class as barred. + * \param[in] rach_control A Rach Control Information Element. + * \param[in] acc Access Control Class number (0 - 15) which shall be barred. + */ +static inline void gsm48_barr_acc(struct gsm48_rach_control *rach_control, unsigned int acc) +{ + OSMO_ASSERT(acc >= 0 && acc <= 15); + if (acc >= 8) + rach_control->t2 |= (1 << (acc - 8)); + else + rach_control->t3 |= (1 << (acc)); +} + +/* + * Mark an Access Control Class as allowed. + * \param[in] rach_control A Rach Control Information Element. + * \param[in] acc Access Control Class number (0 - 15) which shall be allowed. + */ +static inline void gsm48_allow_acc(struct gsm48_rach_control *rach_control, unsigned int acc) +{ + OSMO_ASSERT(acc >= 0 && acc <= 15); + if (acc >= 8) + rach_control->t2 &= ~(1 << (acc - 8)); + else + rach_control->t3 &= ~(1 << (acc)); +} + +/* + * Indicate whether an Access Control Class is barred. + * \param[in] rach_control A Rach Control Information Element. + * \param[in] acc Access Control Class number (0 - 15). + * \returns true if the Access Control class is barred, false otherwise + */ +static inline bool gsm48_acc_is_barred(struct gsm48_rach_control *rach_control, unsigned int acc) +{ + OSMO_ASSERT(acc >= 0 && acc <= 15); + if (acc >= 8) + return (rach_control->t2 & (1 << (acc - 8))) != 0; + return (rach_control->t3 & (1 << (acc))) != 0; +} /* Chapter 10.5.2.30 */ struct gsm48_req_ref { |