261 lines
9.1 KiB
C
261 lines
9.1 KiB
C
#ifndef _GSM322_H
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#define _GSM322_H
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#include <osmocom/bb/common/sysinfo.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/timer.h>
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/* 4.3.1.1 List of states for PLMN selection process (automatic mode) */
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#define GSM322_A0_NULL 0
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#define GSM322_A1_TRYING_RPLMN 1
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#define GSM322_A2_ON_PLMN 2
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#define GSM322_A3_TRYING_PLMN 3
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#define GSM322_A4_WAIT_FOR_PLMN 4
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#define GSM322_A5_HPLMN_SEARCH 5
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#define GSM322_A6_NO_SIM 6
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/* 4.3.1.2 List of states for PLMN selection process (manual mode) */
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#define GSM322_M0_NULL 0
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#define GSM322_M1_TRYING_RPLMN 1
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#define GSM322_M2_ON_PLMN 2
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#define GSM322_M3_NOT_ON_PLMN 3
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#define GSM322_M4_TRYING_PLMN 4
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#define GSM322_M5_NO_SIM 5
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/* 4.3.2 List of states for cell selection process */
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#define GSM322_C0_NULL 0
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#define GSM322_C1_NORMAL_CELL_SEL 1
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#define GSM322_C2_STORED_CELL_SEL 2
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#define GSM322_C3_CAMPED_NORMALLY 3
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#define GSM322_C4_NORMAL_CELL_RESEL 4
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#define GSM322_C5_CHOOSE_CELL 5
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#define GSM322_C6_ANY_CELL_SEL 6
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#define GSM322_C7_CAMPED_ANY_CELL 7
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#define GSM322_C8_ANY_CELL_RESEL 8
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#define GSM322_C9_CHOOSE_ANY_CELL 9
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#define GSM322_CONNECTED_MODE_1 10
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#define GSM322_CONNECTED_MODE_2 11
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#define GSM322_PLMN_SEARCH 12
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#define GSM322_HPLMN_SEARCH 13
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#define GSM322_ANY_SEARCH 14
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/* GSM 03.22 events */
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#define GSM322_EVENT_SWITCH_ON 1
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#define GSM322_EVENT_SWITCH_OFF 2
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#define GSM322_EVENT_SIM_INSERT 3
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#define GSM322_EVENT_SIM_REMOVE 4
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#define GSM322_EVENT_REG_SUCCESS 5
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#define GSM322_EVENT_REG_FAILED 6
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#define GSM322_EVENT_ROAMING_NA 7
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#define GSM322_EVENT_INVALID_SIM 8
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#define GSM322_EVENT_NEW_PLMN 9
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#define GSM322_EVENT_ON_PLMN 10
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#define GSM322_EVENT_PLMN_SEARCH_START 11
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#define GSM322_EVENT_PLMN_SEARCH_END 12
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#define GSM322_EVENT_USER_RESEL 13
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#define GSM322_EVENT_PLMN_AVAIL 14
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#define GSM322_EVENT_CHOOSE_PLMN 15
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#define GSM322_EVENT_SEL_MANUAL 16
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#define GSM322_EVENT_SEL_AUTO 17
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#define GSM322_EVENT_CELL_FOUND 18
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#define GSM322_EVENT_NO_CELL_FOUND 19
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#define GSM322_EVENT_LEAVE_IDLE 20
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#define GSM322_EVENT_RET_IDLE 21
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#define GSM322_EVENT_CELL_RESEL 22
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#define GSM322_EVENT_SYSINFO 23
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#define GSM322_EVENT_HPLMN_SEARCH 24
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enum {
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PLMN_MODE_MANUAL,
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PLMN_MODE_AUTO
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};
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/* node for each PLMN */
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struct gsm322_plmn_list {
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struct llist_head entry;
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uint16_t mcc, mnc;
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uint8_t rxlev; /* rx level in range format */
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uint8_t cause; /* cause value, if PLMN is not allowed */
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};
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/* node for each forbidden LA */
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struct gsm322_la_list {
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struct llist_head entry;
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uint16_t mcc, mnc, lac;
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uint8_t cause;
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};
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/* node for each BA-List */
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struct gsm322_ba_list {
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struct llist_head entry;
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uint16_t mcc, mnc;
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/* Band allocation for 1024+299 frequencies.
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* First bit of first index is frequency 0.
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*/
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uint8_t freq[128+38];
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};
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#define GSM322_CS_FLAG_SUPPORT 0x01 /* frequency is supported by radio */
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#define GSM322_CS_FLAG_BA 0x02 /* frequency is part of the current ba */
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#define GSM322_CS_FLAG_POWER 0x04 /* frequency was power scanned */
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#define GSM322_CS_FLAG_SIGNAL 0x08 /* valid signal detected */
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#define GSM322_CS_FLAG_SYSINFO 0x10 /* complete sysinfo received */
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#define GSM322_CS_FLAG_BARRED 0x20 /* cell is barred */
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#define GSM322_CS_FLAG_FORBIDD 0x40 /* cell in list of forbidden LAs */
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#define GSM322_CS_FLAG_TEMP_AA 0x80 /* if temporary available and allowable */
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/* Cell selection list */
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struct gsm322_cs_list {
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uint8_t flags; /* see GSM322_CS_FLAG_* */
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uint8_t rxlev; /* rx level range format */
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struct gsm48_sysinfo *sysinfo;
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};
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/* PLMN search process */
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struct gsm322_plmn {
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struct osmocom_ms *ms;
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int state; /* GSM322_Ax_* or GSM322_Mx_* */
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struct llist_head event_queue; /* event messages */
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struct llist_head sorted_plmn; /* list of sorted PLMN */
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struct llist_head forbidden_la; /* forbidden LAs */
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struct osmo_timer_list timer;
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int plmn_curr; /* current index in sorted_plmn */
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uint16_t mcc, mnc; /* current network selected */
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};
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/* state of CCCH activation */
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#define GSM322_CCCH_ST_IDLE 0 /* no connection */
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#define GSM322_CCCH_ST_INIT 1 /* initialized */
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#define GSM322_CCCH_ST_SYNC 2 /* got sync */
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#define GSM322_CCCH_ST_DATA 3 /* receiving data */
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/* neighbour cell info list entry */
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struct gsm322_neighbour {
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struct llist_head entry;
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struct gsm322_cellsel *cs;
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uint16_t arfcn; /* ARFCN identity of that neighbour */
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uint8_t state; /* GSM322_NB_* */
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time_t created; /* when was this neighbour created */
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time_t when; /* when did we sync / read */
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int16_t rxlev_sum_dbm; /* sum of received levels */
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uint8_t rxlev_count; /* number of received levels */
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int8_t rla_c_dbm; /* average of the receive level */
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uint8_t c12_valid; /* both C1 and C2 are calculated */
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int16_t c1, c2, crh;
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uint8_t checked_for_resel;
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uint8_t suitable_allowable;
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uint8_t prio_low;
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};
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#define GSM322_NB_NEW 0 /* new NB instance */
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#define GSM322_NB_NOT_SUP 1 /* ARFCN not supported */
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#define GSM322_NB_RLA_C 2 /* valid measurement available */
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#define GSM322_NB_NO_SYNC 3 /* cannot sync to neighbour */
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#define GSM322_NB_NO_BCCH 4 /* sync */
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#define GSM322_NB_SYSINFO 5 /* sysinfo */
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struct gsm48_sysinfo;
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/* Cell selection process */
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struct gsm322_cellsel {
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struct osmocom_ms *ms;
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int state; /* GSM322_Cx_* */
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struct llist_head event_queue; /* event messages */
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struct llist_head ba_list; /* BCCH Allocation per PLMN */
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struct gsm322_cs_list list[1024+299];
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/* cell selection list per frequency. */
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/* scan and tune state */
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struct osmo_timer_list timer; /* cell selection timer */
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uint16_t mcc, mnc; /* current network to search for */
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uint8_t powerscan; /* currently scanning for power */
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uint8_t ccch_state; /* special state of current ccch */
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uint32_t scan_state; /* special state of current scan */
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uint16_t arfcn; /* current tuned idle mode arfcn */
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int arfci; /* list index of frequency above */
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uint8_t ccch_mode; /* curren CCCH_MODE_* */
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uint8_t sync_retries; /* number retries to sync */
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uint8_t sync_pending; /* to prevent double sync req. */
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struct gsm48_sysinfo *si; /* current sysinfo of tuned cell */
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uint8_t tuned; /* if a cell is selected */
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struct osmo_timer_list any_timer; /* restart search 'any cell' */
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/* serving cell */
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uint8_t selected; /* if a cell is selected */
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uint16_t sel_arfcn; /* current selected serving cell! */
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struct gsm48_sysinfo sel_si; /* copy of selected cell, will update */
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uint16_t sel_mcc, sel_mnc, sel_lac, sel_id;
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/* cell re-selection */
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struct llist_head nb_list; /* list of neighbour cells */
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uint16_t last_serving_arfcn; /* the ARFCN of last cell */
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uint8_t last_serving_valid; /* there is a last cell */
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struct gsm322_neighbour *neighbour; /* when selecting neighbour cell */
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time_t resel_when; /* timestamp of last re-selection */
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int8_t nb_meas_set;
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int16_t rxlev_sum_dbm; /* sum of received levels */
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uint8_t rxlev_count; /* number of received levels */
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int8_t rla_c_dbm; /* average of received level */
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uint8_t c12_valid; /* both C1 and C2 values are
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calculated */
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int16_t c1, c2;
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uint8_t prio_low;
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};
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/* GSM 03.22 message */
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struct gsm322_msg {
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int msg_type;
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uint16_t mcc, mnc;
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uint8_t sysinfo; /* system information type */
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uint8_t same_cell; /* select same cell when RET_IDLE */
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uint8_t reject; /* location update reject cause */
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uint8_t limited; /* trigger search for limited serv. */
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};
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#define GSM322_ALLOC_SIZE sizeof(struct gsm322_msg)
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#define GSM322_ALLOC_HEADROOM 0
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uint16_t index2arfcn(int index);
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int arfcn2index(uint16_t arfcn);
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int gsm322_init(struct osmocom_ms *ms);
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int gsm322_exit(struct osmocom_ms *ms);
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struct msgb *gsm322_msgb_alloc(int msg_type);
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int gsm322_plmn_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
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int gsm322_cs_sendmsg(struct osmocom_ms *ms, struct msgb *msg);
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int gsm322_c_event(struct osmocom_ms *ms, struct msgb *msg);
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int gsm322_plmn_dequeue(struct osmocom_ms *ms);
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int gsm322_cs_dequeue(struct osmocom_ms *ms);
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int gsm322_add_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
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uint16_t mnc, uint16_t lac, uint8_t cause);
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int gsm322_del_forbidden_la(struct osmocom_ms *ms, uint16_t mcc,
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uint16_t mnc, uint16_t lac);
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int gsm322_is_forbidden_la(struct osmocom_ms *ms, uint16_t mcc, uint16_t mnc,
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uint16_t lac);
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int gsm322_dump_sorted_plmn(struct osmocom_ms *ms);
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int gsm322_dump_cs_list(struct gsm322_cellsel *cs, uint8_t flags,
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void (*print)(void *, const char *, ...), void *priv);
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int gsm322_dump_forbidden_la(struct osmocom_ms *ms,
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void (*print)(void *, const char *, ...), void *priv);
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int gsm322_dump_ba_list(struct gsm322_cellsel *cs, uint16_t mcc, uint16_t mnc,
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void (*print)(void *, const char *, ...), void *priv);
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int gsm322_dump_nb_list(struct gsm322_cellsel *cs,
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void (*print)(void *, const char *, ...), void *priv);
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void start_cs_timer(struct gsm322_cellsel *cs, int sec, int micro);
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void start_loss_timer(struct gsm322_cellsel *cs, int sec, int micro);
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const char *get_a_state_name(int value);
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const char *get_m_state_name(int value);
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const char *get_cs_state_name(int value);
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int gsm322_l1_signal(unsigned int subsys, unsigned int signal,
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void *handler_data, void *signal_data);
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int gsm322_meas(struct osmocom_ms *ms, uint8_t rx_lev);
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char *gsm_print_rxlev(uint8_t rxlev);
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#endif /* _GSM322_H */
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