diff options
author | Harald Welte <laforge@gnumonks.org> | 2009-06-10 05:40:52 +0800 |
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committer | Harald Welte <laforge@gnumonks.org> | 2009-06-10 05:40:52 +0800 |
commit | 13e10daa330ea2b699c9aa9d14b3adbd01111fd6 (patch) | |
tree | bf9144f9cf625baab472492b3047970cab14ef83 /openbsc/include/openbsc/e1_input.h | |
parent | f7c43524cfc6e30a0223d3aaff89fe955d6e5146 (diff) |
move openbsc into its own subdirectory
Diffstat (limited to 'openbsc/include/openbsc/e1_input.h')
-rw-r--r-- | openbsc/include/openbsc/e1_input.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/e1_input.h b/openbsc/include/openbsc/e1_input.h new file mode 100644 index 000000000..132672364 --- /dev/null +++ b/openbsc/include/openbsc/e1_input.h @@ -0,0 +1,159 @@ +#ifndef _E1_INPUT_H +#define _E1_INPUT_H + +#include <stdlib.h> +#include <netinet/in.h> + +#include <openbsc/linuxlist.h> +#include <openbsc/gsm_data.h> +#include <openbsc/msgb.h> +#include <openbsc/select.h> +#include <openbsc/subchan_demux.h> + +#define NUM_E1_TS 32 + +enum e1inp_sign_type { + E1INP_SIGN_NONE, + E1INP_SIGN_OML, + E1INP_SIGN_RSL, +}; +const char *e1inp_signtype_name(enum e1inp_sign_type tp); + +struct e1inp_ts; + +struct e1inp_sign_link { + /* list of signalling links */ + struct llist_head list; + + /* to which timeslot do we belong? */ + struct e1inp_ts *ts; + + enum e1inp_sign_type type; + + /* trx for msg->trx of received msgs */ + struct gsm_bts_trx *trx; + + /* msgb queue of to-be-transmitted msgs */ + struct llist_head tx_list; + + /* SAPI and TEI on the E1 TS */ + u_int8_t sapi; + u_int8_t tei; + + union { + struct { + u_int8_t channel; + } misdn; + } driver; +}; + +enum e1inp_ts_type { + E1INP_TS_TYPE_NONE, + E1INP_TS_TYPE_SIGN, + E1INP_TS_TYPE_TRAU, +}; +const char *e1inp_tstype_name(enum e1inp_ts_type tp); + +/* A timeslot in the E1 interface */ +struct e1inp_ts { + enum e1inp_ts_type type; + int num; + + /* to which line do we belong ? */ + struct e1inp_line *line; + + union { + struct { + /* list of all signalling links on this TS */ + struct llist_head sign_links; + /* timer when to dequeue next frame */ + struct timer_list tx_timer; + } sign; + struct { + /* subchannel demuxer for frames from E1 */ + struct subch_demux demux; + /* subchannel muxer for frames to E1 */ + struct subch_mux mux; + } trau; + }; + union { + struct { + /* mISDN driver has one fd for each ts */ + struct bsc_fd fd; + } misdn; + struct { + /* ip.access driver has one fd for each ts */ + struct bsc_fd fd; + } ipaccess; + + } driver; +}; + +struct e1inp_driver { + struct llist_head list; + const char *name; + int (*want_write)(struct e1inp_ts *ts); +}; + +struct e1inp_line { + struct llist_head list; + unsigned int num; + const char *name; + + /* array of timestlots */ + struct e1inp_ts ts[NUM_E1_TS]; + + struct e1inp_driver *driver; + void *driver_data; +}; + +/* register a driver with the E1 core */ +int e1inp_driver_register(struct e1inp_driver *drv); + +/* register a line with the E1 core */ +int e1inp_line_register(struct e1inp_line *line); + +/* find a sign_link for given TEI and SAPI in a TS */ +struct e1inp_sign_link * +e1inp_lookup_sign_link(struct e1inp_ts *ts, u_int8_t tei, + u_int8_t sapi); + +/* create a new signalling link in a E1 timeslot */ +struct e1inp_sign_link * +e1inp_sign_link_create(struct e1inp_ts *ts, enum e1inp_sign_type type, + struct gsm_bts_trx *trx, u_int8_t tei, + u_int8_t sapi); + +/* configure and initialize one e1inp_ts */ +int e1inp_ts_config(struct e1inp_ts *ts, struct e1inp_line *line, + enum e1inp_ts_type type); + +/* Call from the Stack: configuration of this TS has changed */ +int e1inp_update_ts(struct e1inp_ts *ts); + +/* Receive a packet from the E1 driver */ +int e1inp_rx_ts(struct e1inp_ts *ts, struct msgb *msg, + u_int8_t tei, u_int8_t sapi); + +/* called by driver if it wants to transmit on a given TS */ +struct msgb *e1inp_tx_ts(struct e1inp_ts *e1i_ts, + struct e1inp_sign_link **sign_link); + +/* called by driver in case some kind of link state event */ +int e1inp_event(struct e1inp_ts *ts, int evt, u_int8_t tei, u_int8_t sapi); + +/* Write LAPD frames to the fd. */ +void e1_set_pcap_fd(int fd); + +/* called by TRAU muxer to obtain the destination mux entity */ +struct subch_mux *e1inp_get_mux(u_int8_t e1_nr, u_int8_t ts_nr); + +/* e1_config.c */ +int e1_config(struct gsm_bts *bts, int cardnr, int release_l2); +int ia_config_connect(struct gsm_bts *bts, struct sockaddr_in *sin); +int ipaccess_setup(struct gsm_network *gsmnet); + +extern struct llist_head e1inp_driver_list; +extern struct llist_head e1inp_line_list; + +#endif /* _E1_INPUT_H */ |