4 /* 4.3.1.1 List of states for PLMN slection process (automatic mode) */
5 #define GSM322_A0_NULL 0
6 #define GSM322_A1_TRYING_RPLMN 1
7 #define GSM322_A2_ON_PLMN 2
8 #define GSM322_A3_TRYING_PLMN 3
9 #define GSM322_A4_WAIT_FOR_PLMN 4
10 #define GSM322_A5_HPLMN_SEARCH 5
11 #define GSM322_A6_NO_SIM 6
13 /* 4.3.1.2 List of states for PLMN slection process (manual mode) */
14 #define GSM322_M0_NULL 0
15 #define GSM322_M1_TRYING_RPLMN 1
16 #define GSM322_M2_ON_PLMN 2
17 #define GSM322_M3_NOT_ON_PLMN 3
18 #define GSM322_M4_TRYING_PLMN 4
19 #define GSM322_M5_NO_SIM 5
21 /* 4.3.2 List of states for cell selection process */
22 #define GSM322_C0_NULL 0
23 #define GSM322_C1_NORMAL_CELL_SEL 1
24 #define GSM322_C2_STORED_CELL_SEL 2
25 #define GSM322_C3_CAMPED_NORMALLY 3
26 #define GSM322_C4_NORMAL_CELL_RESEL 4
27 #define GSM322_C5_CHOOSE_CELL 5
28 #define GSM322_C6_ANY_CELL_SEL 6
29 #define GSM322_C7_CAMPED_ANY_CELL 7
30 #define GSM322_C8_ANY_CELL_RESEL 8
31 #define GSM322_C9_CHOOSE_ANY_CELL 9
32 #define GSM322_CONNECTED_MODE_1 10
33 #define GSM322_CONNECTED_MODE_2 11
34 #define GSM322_PLMN_SEARCH 12
35 #define GSM322_HPLMN_SEARCH 13
36 #define GSM322_ANY_SEARCH 14
38 /* GSM 03.22 events */
39 #define GSM322_EVENT_SWITCH_ON 1
40 #define GSM322_EVENT_SWITCH_OFF 2
41 #define GSM322_EVENT_SIM_INSERT 3
42 #define GSM322_EVENT_SIM_REMOVE 4
43 #define GSM322_EVENT_REG_SUCCESS 5
44 #define GSM322_EVENT_REG_FAILED 6
45 #define GSM322_EVENT_ROAMING_NA 7
46 #define GSM322_EVENT_INVALID_SIM 8
47 #define GSM322_EVENT_NEW_PLMN 9
48 #define GSM322_EVENT_ON_PLMN 10
49 #define GSM322_EVENT_PLMN_SEARCH_START 11
50 #define GSM322_EVENT_PLMN_SEARCH_END 12
51 #define GSM322_EVENT_USER_RESEL 13
52 #define GSM322_EVENT_PLMN_AVAIL 14
53 #define GSM322_EVENT_CHOOSE_PLMN 15
54 #define GSM322_EVENT_SEL_MANUAL 16
55 #define GSM322_EVENT_SEL_AUTO 17
56 #define GSM322_EVENT_CELL_FOUND 18
57 #define GSM322_EVENT_NO_CELL_FOUND 19
58 #define GSM322_EVENT_LEAVE_IDLE 20
59 #define GSM322_EVENT_RET_IDLE 21
60 #define GSM322_EVENT_CELL_RESEL 22
61 #define GSM322_EVENT_SYSINFO 23
62 #define GSM322_EVENT_HPLMN_SEARCH 24
69 /* node for each PLMN */
70 struct gsm322_plmn_list {
71 struct llist_head entry;
73 int8_t rxlev; /* rx level in range format */
74 uint8_t cause; /* cause value, if PLMN is not allowed */
77 /* node for each forbidden LA */
78 struct gsm322_la_list {
79 struct llist_head entry;
80 uint16_t mcc, mnc, lac;
84 /* node for each BA-List */
85 struct gsm322_ba_list {
86 struct llist_head entry;
88 /* Band allocation for 1024+299 frequencies.
89 * First bit of first index is frequency 0.
94 #define GSM322_CS_FLAG_SUPPORT 0x01 /* frequency is supported by radio */
95 #define GSM322_CS_FLAG_BA 0x02 /* frequency is part of the current ba */
96 #define GSM322_CS_FLAG_POWER 0x04 /* frequency was power scanned */
97 #define GSM322_CS_FLAG_SIGNAL 0x08 /* valid signal detected */
98 #define GSM322_CS_FLAG_SYSINFO 0x10 /* complete sysinfo received */
99 #define GSM322_CS_FLAG_BARRED 0x20 /* cell is barred */
100 #define GSM322_CS_FLAG_FORBIDD 0x40 /* cell in list of forbidden LAs */
101 #define GSM322_CS_FLAG_TEMP_AA 0x80 /* if temporary available and allowable */
103 /* Cell selection list */
104 struct gsm322_cs_list {
105 uint8_t flags; /* see GSM322_CS_FLAG_* */
106 int8_t rxlev; /* rx level range format */
107 struct gsm48_sysinfo *sysinfo;
110 /* PLMN search process */
112 struct osmocom_ms *ms;
113 int state; /* GSM322_Ax_* or GSM322_Mx_* */
115 struct llist_head event_queue; /* event messages */
116 struct llist_head sorted_plmn; /* list of sorted PLMN */
117 struct llist_head forbidden_la; /* forbidden LAs */
119 struct osmo_timer_list timer;
121 int plmn_curr; /* current index in sorted_plmn */
122 uint16_t mcc, mnc; /* current network selected */
125 /* state of CCCH activation */
126 #define GSM322_CCCH_ST_IDLE 0 /* no connection */
127 #define GSM322_CCCH_ST_INIT 1 /* initalized */
128 #define GSM322_CCCH_ST_SYNC 2 /* got sync */
129 #define GSM322_CCCH_ST_DATA 3 /* receiveing data */
131 /* neighbour cell info list entry */
132 struct gsm322_neighbour {
133 struct llist_head entry;
134 struct gsm322_cellsel *cs;
135 uint16_t arfcn; /* ARFCN identity of that neighbour */
137 uint8_t state; /* GSM322_NB_* */
138 time_t created; /* when was this neighbour created */
139 time_t when; /* when did we sync / read */
140 int16_t rxlev_dbm; /* sum of received levels */
141 uint8_t rxlev_count; /* number of received levels */
142 int8_t rla_c_dbm; /* average of the reveive level */
143 uint8_t c12_valid; /* both C1 and C2 are calculated */
145 uint8_t checked_for_resel;
146 uint8_t suitable_allowable;
150 #define GSM322_NB_NEW 0 /* new NB instance */
151 #define GSM322_NB_NOT_SUP 1 /* ARFCN not supported */
152 #define GSM322_NB_RLA_C 2 /* valid measurement available */
153 #define GSM322_NB_NO_SYNC 3 /* cannot sync to neighbour */
154 #define GSM322_NB_NO_BCCH 4 /* sync */
155 #define GSM322_NB_SYSINFO 5 /* sysinfo */
157 struct gsm48_sysinfo;
158 /* Cell selection process */
159 struct gsm322_cellsel {
160 struct osmocom_ms *ms;
161 int state; /* GSM322_Cx_* */
163 struct llist_head event_queue; /* event messages */
164 struct llist_head ba_list; /* BCCH Allocation per PLMN */
165 struct gsm322_cs_list list[1024+299];
166 /* cell selection list per frequency. */
167 /* scan and tune state */
168 struct osmo_timer_list timer; /* cell selection timer */
169 uint16_t mcc, mnc; /* current network to search for */
170 uint8_t powerscan; /* currently scanning for power */
171 uint8_t ccch_state; /* special state of current ccch */
172 uint32_t scan_state; /* special state of current scan */
173 uint16_t arfcn; /* current tuned idle mode arfcn */
174 int arfci; /* list index of frequency above */
175 uint8_t ccch_mode; /* curren CCCH_MODE_* */
176 uint8_t sync_retries; /* number retries to sync */
177 uint8_t sync_pending; /* to prevent double sync req. */
178 struct gsm48_sysinfo *si; /* current sysinfo of tuned cell */
179 uint8_t tuned; /* if a cell is selected */
180 struct osmo_timer_list any_timer; /* restart search 'any cell' */
183 uint8_t selected; /* if a cell is selected */
184 uint16_t sel_arfcn; /* current selected serving cell! */
185 struct gsm48_sysinfo sel_si; /* copy of selected cell, will update */
186 uint16_t sel_mcc, sel_mnc, sel_lac, sel_id;
188 /* cell re-selection */
189 struct llist_head nb_list; /* list of neighbour cells */
190 uint16_t last_serving_arfcn; /* the ARFCN of last cell */
191 uint8_t last_serving_valid; /* there is a last cell */
192 struct gsm322_neighbour *neighbour; /* when selecting neighbour cell */
193 time_t resel_when; /* timestamp of last re-selection */
195 int16_t rxlev_dbm; /* sum of received levels */
196 uint8_t rxlev_count; /* number of received levels */
197 int8_t rla_c_dbm; /* average of received level */
198 uint8_t c12_valid; /* both C1 and C2 values are
204 /* GSM 03.22 message */
208 uint8_t sysinfo; /* system information type */
209 uint8_t same_cell; /* select same cell when RET_IDLE */
210 uint8_t reject; /* location update reject cause */
211 uint8_t limited; /* trigger search for limited serv. */
214 #define GSM322_ALLOC_SIZE sizeof(struct gsm322_msg)
215 #define GSM322_ALLOC_HEADROOM 0
217 uint16_t index2arfcn(int index);
218 int arfcn2index(uint16_t arfcn);
219 int gsm322_init(struct osmocom_ms *ms);
220 int gsm322_exit(struct osmocom_ms *ms);
221 struct msgb *gsm322_msgb_alloc(int msg_type);
222 int gsm322_plmn_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
223 int gsm322_cs_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
224 int gsm322_c_event(struct osmocom_ms *ms, struct msgb *msg);
225 int gsm322_plmn_dequeue(struct osmocom_ms *ms);
226 int gsm322_cs_dequeue(struct osmocom_ms *ms);
227 int gsm322_add_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
228 uint16_t mnc, uint16_t lac, uint8_t cause);
229 int gsm322_del_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
230 uint16_t mnc, uint16_t lac);
231 int gsm322_is_forbidden_la(struct osmocom_ms *ms, uint16_t mcc, uint16_t mnc,
233 int gsm322_dump_sorted_plmn(struct osmocom_ms *ms);
234 int gsm322_dump_cs_list(struct gsm322_cellsel *cs, uint8_t flags,
235 void (*print)(void *, const char *, ...), void *priv);
236 int gsm322_dump_forbidden_la(struct osmocom_ms *ms,
237 void (*print)(void *, const char *, ...), void *priv);
238 int gsm322_dump_ba_list(struct gsm322_cellsel *cs, uint16_t mcc, uint16_t mnc,
239 void (*print)(void *, const char *, ...), void *priv);
240 int gsm322_dump_nb_list(struct gsm322_cellsel *cs,
241 void (*print)(void *, const char *, ...), void *priv);
242 void start_cs_timer(struct gsm322_cellsel *cs, int sec, int micro);
243 void start_loss_timer(struct gsm322_cellsel *cs, int sec, int micro);
244 const char *get_a_state_name(int value);
245 const char *get_m_state_name(int value);
246 const char *get_cs_state_name(int value);
247 int gsm322_l1_signal(unsigned int subsys, unsigned int signal,
248 void *handler_data, void *signal_data);
250 int gsm322_meas(struct osmocom_ms *ms, uint8_t rx_lev);
252 char *gsm_print_rxlev(uint8_t rxlev);
255 #endif /* _GSM322_H */