1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
#ifndef _GSM322_H
#define _GSM322_H
/* 4.3.1.1 List of states for PLMN slection process (automatic mode) */
#define GSM322_A0_NULL 0
#define GSM322_A1_TRYING_RPLMN 1
#define GSM322_A2_ON_PLMN 2
#define GSM322_A3_TRYING_PLMN 3
#define GSM322_A4_WAIT_FOR_PLMN 4
#define GSM322_A5_HPLMN_SEARCH 5
#define GSM322_A6_NO_SIM 6
/* 4.3.1.2 List of states for PLMN slection process (manual mode) */
#define GSM322_M0_NULL 0
#define GSM322_M1_TRYING_RPLMN 1
#define GSM322_M2_ON_PLMN 2
#define GSM322_M3_NOT_ON_PLMN 3
#define GSM322_M4_TRYING_PLMN 4
#define GSM322_M5_NO_SIM 5
/* 4.3.2 List of states for cell selection process */
#define GSM322_C0_NULL 0
#define GSM322_C1_NORMAL_CELL_SEL 1
#define GSM322_C2_STORED_CELL_SEL 2
#define GSM322_C3_CAMPED_NORMALLY 3
#define GSM322_C4_NORMAL_CELL_RESEL 4
#define GSM322_C5_CHOOSE_CELL 5
#define GSM322_C6_ANY_CELL_SEL 6
#define GSM322_C7_CAMPED_ANY_CELL 7
#define GSM322_C8_ANY_CELL_RESEL 8
#define GSM322_C9_CHOOSE_ANY_CELL 9
#define GSM322_CONNECTED_MODE_1 10
#define GSM322_CONNECTED_MODE_2 11
#define GSM322_PLMN_SEARCH 12
#define GSM322_HPLMN_SEARCH 13
#define GSM322_ANY_SEARCH 14
/* GSM 03.22 events */
#define GSM322_EVENT_SWITCH_ON 1
#define GSM322_EVENT_SWITCH_OFF 2
#define GSM322_EVENT_SIM_INSERT 3
#define GSM322_EVENT_SIM_REMOVE 4
#define GSM322_EVENT_REG_SUCCESS 5
#define GSM322_EVENT_REG_FAILED 6
#define GSM322_EVENT_ROAMING_NA 7
#define GSM322_EVENT_INVALID_SIM 8
#define GSM322_EVENT_NEW_PLMN 9
#define GSM322_EVENT_ON_PLMN 10
#define GSM322_EVENT_PLMN_SEARCH_START 11
#define GSM322_EVENT_PLMN_SEARCH_END 12
#define GSM322_EVENT_USER_RESEL 13
#define GSM322_EVENT_PLMN_AVAIL 14
#define GSM322_EVENT_CHOOSE_PLMN 15
#define GSM322_EVENT_SEL_MANUAL 16
#define GSM322_EVENT_SEL_AUTO 17
#define GSM322_EVENT_CELL_FOUND 18
#define GSM322_EVENT_NO_CELL_FOUND 19
#define GSM322_EVENT_LEAVE_IDLE 20
#define GSM322_EVENT_RET_IDLE 21
#define GSM322_EVENT_CELL_RESEL 22
#define GSM322_EVENT_SYSINFO 23
#define GSM322_EVENT_HPLMN_SEARCH 24
enum {
PLMN_MODE_MANUAL,
PLMN_MODE_AUTO
};
/* node for each PLMN */
struct gsm322_plmn_list {
struct llist_head entry;
uint16_t mcc, mnc;
uint8_t rxlev; /* rx level in range format */
uint8_t cause; /* cause value, if PLMN is not allowed */
};
/* node for each forbidden LA */
struct gsm322_la_list {
struct llist_head entry;
uint16_t mcc, mnc, lac;
uint8_t cause;
};
/* node for each BA-List */
struct gsm322_ba_list {
struct llist_head entry;
uint16_t mcc, mnc;
/* Band allocation for 1024+299 frequencies.
* First bit of first index is frequency 0.
*/
uint8_t freq[128+38];
};
#define GSM322_CS_FLAG_SUPPORT 0x01 /* frequency is supported by radio */
#define GSM322_CS_FLAG_BA 0x02 /* frequency is part of the current ba */
#define GSM322_CS_FLAG_POWER 0x04 /* frequency was power scanned */
#define GSM322_CS_FLAG_SIGNAL 0x08 /* valid signal detected */
#define GSM322_CS_FLAG_SYSINFO 0x10 /* complete sysinfo received */
#define GSM322_CS_FLAG_BARRED 0x20 /* cell is barred */
#define GSM322_CS_FLAG_FORBIDD 0x40 /* cell in list of forbidden LAs */
#define GSM322_CS_FLAG_TEMP_AA 0x80 /* if temporary available and allowable */
/* Cell selection list */
struct gsm322_cs_list {
uint8_t flags; /* see GSM322_CS_FLAG_* */
uint8_t rxlev; /* rx level range format */
struct gsm48_sysinfo *sysinfo;
};
/* PLMN search process */
struct gsm322_plmn {
struct osmocom_ms *ms;
int state; /* GSM322_Ax_* or GSM322_Mx_* */
struct llist_head event_queue; /* event messages */
struct llist_head sorted_plmn; /* list of sorted PLMN */
struct llist_head forbidden_la; /* forbidden LAs */
struct osmo_timer_list timer;
int plmn_curr; /* current index in sorted_plmn */
uint16_t mcc, mnc; /* current network selected */
};
/* state of CCCH activation */
#define GSM322_CCCH_ST_IDLE 0 /* no connection */
#define GSM322_CCCH_ST_INIT 1 /* initalized */
#define GSM322_CCCH_ST_SYNC 2 /* got sync */
#define GSM322_CCCH_ST_DATA 3 /* receiveing data */
/* neighbour cell info list entry */
struct gsm322_neighbour {
struct llist_head entry;
struct gsm322_cellsel *cs;
uint16_t arfcn; /* ARFCN identity of that neighbour */
uint8_t state; /* GSM322_NB_* */
time_t created; /* when was this neighbour created */
time_t when; /* when did we sync / read */
int16_t rxlev_sum_dbm; /* sum of received levels */
uint8_t rxlev_count; /* number of received levels */
int8_t rla_c_dbm; /* average of the reveive level */
uint8_t c12_valid; /* both C1 and C2 are calculated */
int16_t c1, c2, crh;
uint8_t checked_for_resel;
uint8_t suitable_allowable;
uint8_t prio_low;
};
#define GSM322_NB_NEW 0 /* new NB instance */
#define GSM322_NB_NOT_SUP 1 /* ARFCN not supported */
#define GSM322_NB_RLA_C 2 /* valid measurement available */
#define GSM322_NB_NO_SYNC 3 /* cannot sync to neighbour */
#define GSM322_NB_NO_BCCH 4 /* sync */
#define GSM322_NB_SYSINFO 5 /* sysinfo */
struct gsm48_sysinfo;
/* Cell selection process */
struct gsm322_cellsel {
struct osmocom_ms *ms;
int state; /* GSM322_Cx_* */
struct llist_head event_queue; /* event messages */
struct llist_head ba_list; /* BCCH Allocation per PLMN */
struct gsm322_cs_list list[1024+299];
/* cell selection list per frequency. */
/* scan and tune state */
struct osmo_timer_list timer; /* cell selection timer */
uint16_t mcc, mnc; /* current network to search for */
uint8_t powerscan; /* currently scanning for power */
uint8_t ccch_state; /* special state of current ccch */
uint32_t scan_state; /* special state of current scan */
uint16_t arfcn; /* current tuned idle mode arfcn */
int arfci; /* list index of frequency above */
uint8_t ccch_mode; /* curren CCCH_MODE_* */
uint8_t sync_retries; /* number retries to sync */
uint8_t sync_pending; /* to prevent double sync req. */
struct gsm48_sysinfo *si; /* current sysinfo of tuned cell */
uint8_t tuned; /* if a cell is selected */
struct osmo_timer_list any_timer; /* restart search 'any cell' */
/* serving cell */
uint8_t selected; /* if a cell is selected */
uint16_t sel_arfcn; /* current selected serving cell! */
struct gsm48_sysinfo sel_si; /* copy of selected cell, will update */
uint16_t sel_mcc, sel_mnc, sel_lac, sel_id;
/* cell re-selection */
struct llist_head nb_list; /* list of neighbour cells */
uint16_t last_serving_arfcn; /* the ARFCN of last cell */
uint8_t last_serving_valid; /* there is a last cell */
struct gsm322_neighbour *neighbour; /* when selecting neighbour cell */
time_t resel_when; /* timestamp of last re-selection */
int8_t nb_meas_set;
int16_t rxlev_sum_dbm; /* sum of received levels */
uint8_t rxlev_count; /* number of received levels */
int8_t rla_c_dbm; /* average of received level */
uint8_t c12_valid; /* both C1 and C2 values are
calculated */
int16_t c1, c2;
uint8_t prio_low;
};
/* GSM 03.22 message */
struct gsm322_msg {
int msg_type;
uint16_t mcc, mnc;
uint8_t sysinfo; /* system information type */
uint8_t same_cell; /* select same cell when RET_IDLE */
uint8_t reject; /* location update reject cause */
uint8_t limited; /* trigger search for limited serv. */
};
#define GSM322_ALLOC_SIZE sizeof(struct gsm322_msg)
#define GSM322_ALLOC_HEADROOM 0
uint16_t index2arfcn(int index);
int arfcn2index(uint16_t arfcn);
int gsm322_init(struct osmocom_ms *ms);
int gsm322_exit(struct osmocom_ms *ms);
struct msgb *gsm322_msgb_alloc(int msg_type);
int gsm322_plmn_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
int gsm322_cs_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
int gsm322_c_event(struct osmocom_ms *ms, struct msgb *msg);
int gsm322_plmn_dequeue(struct osmocom_ms *ms);
int gsm322_cs_dequeue(struct osmocom_ms *ms);
int gsm322_add_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
uint16_t mnc, uint16_t lac, uint8_t cause);
int gsm322_del_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
uint16_t mnc, uint16_t lac);
int gsm322_is_forbidden_la(struct osmocom_ms *ms, uint16_t mcc, uint16_t mnc,
uint16_t lac);
int gsm322_dump_sorted_plmn(struct osmocom_ms *ms);
int gsm322_dump_cs_list(struct gsm322_cellsel *cs, uint8_t flags,
void (*print)(void *, const char *, ...), void *priv);
int gsm322_dump_forbidden_la(struct osmocom_ms *ms,
void (*print)(void *, const char *, ...), void *priv);
int gsm322_dump_ba_list(struct gsm322_cellsel *cs, uint16_t mcc, uint16_t mnc,
void (*print)(void *, const char *, ...), void *priv);
int gsm322_dump_nb_list(struct gsm322_cellsel *cs,
void (*print)(void *, const char *, ...), void *priv);
void start_cs_timer(struct gsm322_cellsel *cs, int sec, int micro);
void start_loss_timer(struct gsm322_cellsel *cs, int sec, int micro);
const char *get_a_state_name(int value);
const char *get_m_state_name(int value);
const char *get_cs_state_name(int value);
int gsm322_l1_signal(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data);
int gsm322_meas(struct osmocom_ms *ms, uint8_t rx_lev);
char *gsm_print_rxlev(uint8_t rxlev);
#endif /* _GSM322_H */
|
