4 #include "osmocore/protocol/gsm_04_08.h"
6 #define GSM_TA_CM 55385
9 #define GSM48_RR_EST_REQ 0x10
10 #define GSM48_RR_EST_IND 0x12
11 #define GSM48_RR_EST_CNF 0x11
12 #define GSM48_RR_REL_IND 0x22
13 #define GSM48_RR_SYNC_IND 0x32
14 #define GSM48_RR_DATA_REQ 0x40
15 #define GSM48_RR_DATA_IND 0x42
16 #define GSM48_RR_UNIT_DATA_IND 0x52
17 #define GSM48_RR_ABORT_REQ 0x60
18 #define GSM48_RR_ABORT_IND 0x62
19 #define GSM48_RR_ACT_REQ 0x70
21 #define RR_EST_CAUSE_EMERGENCY 1
22 #define RR_EST_CAUSE_REESTAB_TCH_F 2
23 #define RR_EST_CAUSE_REESTAB_TCH_H 3
24 #define RR_EST_CAUSE_REESTAB_2_TCH_H 4
25 #define RR_EST_CAUSE_ANS_PAG_ANY 5
26 #define RR_EST_CAUSE_ANS_PAG_SDCCH 6
27 #define RR_EST_CAUSE_ANS_PAG_TCH_F 7
28 #define RR_EST_CAUSE_ANS_PAG_TCH_ANY 8
29 #define RR_EST_CAUSE_ORIG_TCHF 9
30 #define RR_EST_CAUSE_LOC_UPD 12
31 #define RR_EST_CAUSE_OTHER_SDCCH 13
33 #define RR_REL_CAUSE_UNDEFINED 0
34 #define RR_REL_CAUSE_NORMAL 1
35 #define RR_REL_CAUSE_NOT_AUTHORIZED 2
36 #define RR_REL_CAUSE_RA_FAILURE 3
37 #define RR_REL_CAUSE_T3122 4
38 #define RR_REL_CAUSE_TRY_LATER 5
39 #define RR_REL_CAUSE_EMERGENCY_ONLY 6
40 #define RR_REL_CAUSE_LOST_SIGNAL 7
41 #define RR_REL_CAUSE_LINK_FAILURE 8
43 #define RR_SYNC_CAUSE_CIPHERING 1
45 #define L3_ALLOC_SIZE 256
46 #define L3_ALLOC_HEADROOM 64
48 #define RSL_ALLOC_SIZE 256
49 #define RSL_ALLOC_HEADROOM 64
51 #define RR_ALLOC_SIZE 256
52 #define RR_ALLOC_HEADROOM 64
54 /* GSM 04.08 RR-SAP header */
56 uint32_t msg_type; /* RR-* primitive */
61 #define GSM48_RR_ST_IDLE 0
62 #define GSM48_RR_ST_CONN_PEND 1
63 #define GSM48_RR_ST_DEDICATED 2
64 #define GSM48_RR_ST_REL_PEND 3
67 #define GSM48_RR_MOD_NONE 0
68 #define GSM48_RR_MOD_IMM_ASS 1
69 #define GSM48_RR_MOD_ASSIGN 2
70 #define GSM48_RR_MOD_HANDO 3
71 #define GSM48_RR_MOD_ASSIGN_RESUME 4
72 #define GSM48_RR_MOD_HANDO_RESUME 5
74 /* channel description */
77 uint8_t h; /* using hopping */
78 uint16_t arfcn; /* dedicated mode */
81 uint8_t chan_nr; /* type, slot, sub slot */
83 uint8_t ind_tx_power; /* last indicated power */
84 uint8_t ind_ta; /* last indicated ta */
85 uint8_t mob_alloc_lv[9]; /* len + up to 64 bits */
86 uint8_t freq_list_lv[131]; /* len + 130 octets */
87 uint8_t freq_seq_lv[10]; /* len + 9 octets */
88 uint8_t cell_desc_lv[17]; /* len + 16 octets */
89 uint8_t start; /* start time available */
90 struct gsm_time start_tm; /* start time */
91 uint8_t mode; /* mode of channel */
92 uint8_t cipher; /* ciphering of channel */
96 struct gsm48_rr_meas {
108 uint8_t bcch_f_nc[6];
111 struct gsm48_cr_hist {
113 struct gsm48_req_ref ref;
116 /* RR sublayer instance */
117 struct gsm48_rrlayer {
118 struct osmocom_ms *ms;
121 /* queue for RSL-SAP message upwards */
122 struct llist_head rsl_upqueue;
124 /* queue for messages while RR connection is built up */
125 struct llist_head downqueue;
128 struct timer_list t_starting; /* starting time for chan. access */
129 struct timer_list t_rel_wait; /* wait for L2 to transmit UA */
130 struct timer_list t3110;
131 struct timer_list t3122;
132 struct timer_list t3124;
133 struct timer_list t3126;
136 struct timer_list temp_rach_ti; /* temporary timer */
139 /* states if RR-EST-REQ was used */
141 struct msgb *rr_est_msg;
142 uint8_t est_cause; /* cause used for establishment */
144 /* channel request states */
145 uint8_t wait_assign; /* waiting for assignment state */
146 uint8_t n_chan_req; /* number left, incl. current */
147 uint8_t chan_req_val; /* current request value */
148 uint8_t chan_req_mask; /* mask of random bits */
151 uint8_t cr_ra; /* stores requested ra until confirmed */
152 struct gsm48_cr_hist cr_hist[3];
154 /* V(SD) sequence numbers */
155 uint16_t v_sd; /* 16 PD 1-bit sequence numbers packed */
157 /* current channel descriptions */
158 struct gsm48_rr_cd cd_now;
160 /* current cipering */
162 uint8_t cipher_type; /* 10.5.2.9 */
164 /* special states when assigning channel */
165 uint8_t modify_state;
166 uint8_t hando_sync_ind, hando_rot, hando_nci, hando_act;
167 struct gsm48_rr_cd cd_last; /* store last cd in case of failure */
168 struct gsm48_rr_cd cd_before; /* before start time */
169 struct gsm48_rr_cd cd_after; /* after start time */
172 struct gsm48_rr_meas meas;
176 uint32_t ba_range[16];
180 struct timer_list t_monitor;
183 const char *get_rr_name(int value);
184 extern int gsm48_rr_init(struct osmocom_ms *ms);
185 extern int gsm48_rr_exit(struct osmocom_ms *ms);
186 int gsm48_rsl_dequeue(struct osmocom_ms *ms);
187 int gsm48_rr_downmsg(struct osmocom_ms *ms, struct msgb *msg);
188 struct msgb *gsm48_l3_msgb_alloc(void);
189 struct msgb *gsm48_rr_msgb_alloc(int msg_type);
190 int gsm48_decode_lai(struct gsm48_loc_area_id *lai, uint16_t *mcc,
191 uint16_t *mnc, uint16_t *lac);
192 int gsm48_encode_lai(struct gsm48_loc_area_id *lai, uint16_t mcc,
193 uint16_t mnc, uint16_t lac);
194 int gsm48_rr_enc_cm2(struct osmocom_ms *ms, struct gsm48_classmark2 *cm);
195 int gsm48_rr_tx_rand_acc(struct osmocom_ms *ms, struct msgb *msg);
196 int gsm48_rr_los(struct osmocom_ms *ms);
197 int gsm48_rr_rach_conf(struct osmocom_ms *ms, uint32_t fn);
198 extern const char *gsm48_rr_state_names[];
199 int gsm48_rr_start_monitor(struct osmocom_ms *ms);
200 int gsm48_rr_stop_monitor(struct osmocom_ms *ms);
202 #endif /* _GSM48_RR_H */