Import all C and Header files from jolly/bts branch of osmocom-bb.git

The BTS code shall reside in a separate git repository, thus I'm
importing the C and H files here.

6 files changed, 299 insertions, 0 deletions

diff --git a/include/osmo-bts/abis.h b/include/osmo-bts/abis.h
new file mode 100644
index 00000000..517c6e72
--- /dev/null
+++ b/include/osmo-bts/abis.h
@@ -0,0 +1,68 @@
+#ifndef _ABIS_H
+#define _ABIS_H
+
+#define IPA_TCP_PORT_OML	3002
+#define IPA_TCP_PORT_RSL	3003
+
+#define	OML_RETRY_TIMER		5
+#define	OML_PING_TIMER		20
+
+struct ipabis_head {
+	u_int16_t len;	/* network byte order */
+	u_int8_t proto;
+	u_int8_t data[0];
+} __attribute__ ((packed));
+
+enum ipabis_proto {
+	IPA_PROTO_RSL		= 0x00,
+	IPA_PROTO_IPACCESS	= 0xfe,
+	IPA_PROTO_SCCP		= 0xfd,
+	IPA_PROTO_OML		= 0xff,
+};
+
+enum ipabis_msgtype {
+	IPA_MSGT_PING		= 0x00,
+	IPA_MSGT_PONG		= 0x01,
+	IPA_MSGT_ID_GET		= 0x04,
+	IPA_MSGT_ID_RESP	= 0x05,
+	IPA_MSGT_ID_ACK		= 0x06,
+};
+
+enum ipabis_id_tags {
+	IPA_IDTAG_SERNR		= 0x00,
+	IPA_IDTAG_UNITNAME	= 0x01,
+	IPA_IDTAG_LOCATION1	= 0x02,
+	IPA_IDTAG_LOCATION2	= 0x03,
+	IPA_IDTAG_EQUIPVERS	= 0x04,
+	IPA_IDTAG_SWVERSION	= 0x05,
+	IPA_IDTAG_IPADDR	= 0x06,
+	IPA_IDTAG_MACADDR	= 0x07,
+	IPA_IDTAG_UNIT		= 0x08,
+};
+
+struct ipabis_link {
+	int state;
+	struct osmocom_bts	*bts;	/* set, if OML link */
+	struct osmobts_trx	*trx;	/* set, if RSL link */
+	struct bsc_fd		bfd;
+	struct timer_list	timer;
+	struct msgb		*rx_msg;
+	struct llist_head	tx_queue;
+	int			ping, pong, id_resp;
+	uint32_t		ip;
+};
+
+enum {
+	LINK_STATE_IDLE = 0,
+	LINK_STATE_RETRYING,
+	LINK_STATE_CONNECTING,
+	LINK_STATE_CONNECT,
+};
+
+int abis_tx(struct ipabis_link *link, struct msgb *msg);
+struct msgb *abis_msgb_alloc(int headroom);
+void abis_push_ipa(struct msgb *msg, uint8_t proto);
+int abis_open(struct ipabis_link *link, uint32_t ip);
+void abis_close(struct ipabis_link *link);
+
+#endif /* _ABIS_H */
diff --git a/include/osmo-bts/bts.h b/include/osmo-bts/bts.h
new file mode 100644
index 00000000..3e37e0bf
--- /dev/null
+++ b/include/osmo-bts/bts.h
@@ -0,0 +1,133 @@
+#ifndef _BTS_H
+#define _BTS_H
+
+#define BTS_SI_NUM 23 /* MUAR match the entries in BTS_SI_LIST */
+
+#define BTS_SI_LIST { \
+	RSL_SYSTEM_INFO_8, \
+	RSL_SYSTEM_INFO_1, \
+	RSL_SYSTEM_INFO_2, \
+	RSL_SYSTEM_INFO_3, \
+	RSL_SYSTEM_INFO_4, \
+	RSL_SYSTEM_INFO_5, \
+	RSL_SYSTEM_INFO_6, \
+	RSL_SYSTEM_INFO_7, \
+	RSL_SYSTEM_INFO_16, \
+	RSL_SYSTEM_INFO_17, \
+	RSL_SYSTEM_INFO_2bis, \
+	RSL_SYSTEM_INFO_2ter, \
+	RSL_SYSTEM_INFO_5bis, \
+	RSL_SYSTEM_INFO_5ter, \
+	RSL_SYSTEM_INFO_10, \
+	REL_EXT_MEAS_ORDER, \
+	RSL_MEAS_INFO, \
+	RSL_SYSTEM_INFO_13, \
+	RSL_SYSTEM_INFO_2quater, \
+	RSL_SYSTEM_INFO_9, \
+	RSL_SYSTEM_INFO_18, \
+	RSL_SYSTEM_INFO_19, \
+	RSL_SYSTEM_INFO_20, \
+}
+
+#define BTS_SI_NAME char *bts_si_name[] = { \
+	"RSL_SYSTEM_INFO_8", \
+	"RSL_SYSTEM_INFO_1", \
+	"RSL_SYSTEM_INFO_2", \
+	"RSL_SYSTEM_INFO_3", \
+	"RSL_SYSTEM_INFO_4", \
+	"RSL_SYSTEM_INFO_5", \
+	"RSL_SYSTEM_INFO_6", \
+	"RSL_SYSTEM_INFO_7", \
+	"RSL_SYSTEM_INFO_16", \
+	"RSL_SYSTEM_INFO_17", \
+	"RSL_SYSTEM_INFO_2bis", \
+	"RSL_SYSTEM_INFO_2ter", \
+	"RSL_SYSTEM_INFO_5bis", \
+	"RSL_SYSTEM_INFO_5ter", \
+	"RSL_SYSTEM_INFO_10", \
+	"REL_EXT_MEAS_ORDER", \
+	"RSL_MEAS_INFO", \
+	"RSL_SYSTEM_INFO_13", \
+	"RSL_SYSTEM_INFO_2quater", \
+	"RSL_SYSTEM_INFO_9", \
+	"RSL_SYSTEM_INFO_18", \
+	"RSL_SYSTEM_INFO_19", \
+	"RSL_SYSTEM_INFO_20", \
+}
+
+#define BTS_SI_USE	1
+#define BTS_SI_NEW	2
+
+/* store sysinfos of a BTS */
+struct osmobts_sysinfo {
+	uint8_t			flags[BTS_SI_NUM];
+	uint8_t			si[BTS_SI_NUM][23];
+	struct timer_list	timer;
+};
+
+struct osmobts_slot;
+
+/* one physical radio */
+struct osmobts_ms {
+	struct llist_head	entry;
+	struct osmobts_trx	*trx;
+	struct osmocom_ms	ms;
+};
+
+/* one logical channel instance */
+struct osmobts_lchan {
+	struct osmobts_slot	*slot;
+	uint8_t			lchan_nr;
+	uint8_t			chan_nr; /* CBITS+TN */
+	struct osmol2_entity	l2_entity;
+	struct osmobts_rtp	rtp;
+};
+
+/* one timeslot instance */
+struct osmobts_slot {
+	struct osmobts_trx	*trx;
+	uint8_t			slot_nr;
+	uint8_t			acch_type; /* TS 08.58 9.3.1 (bits 8..4) */
+	uint8_t			has_bcch;
+	uint8_t			chan_comb;
+	struct osmobts_lchan	*lchan[8];
+	struct osmobts_ms	*tx_ms, *rx_ms;
+};
+
+/* one TRX instance */
+struct osmobts_trx {
+	struct osmocom_bts	*bts;
+	uint8_t			trx_nr;
+	struct osmobts_slot	slot[8];
+	struct llist_head	ms_list;
+	struct ipabis_link	link;
+	struct osmobts_sysinfo	si;
+	uint8_t			rf_red;
+	uint16_t		arfcn_list[128];
+	int			arfcn_num;
+};
+
+/* the BTS instance */
+struct osmocom_bts {
+	char *id;
+	uint8_t num_trx;
+	struct osmobts_trx	*trx[8];
+	struct ipabis_link	link;
+	uint8_t			max_ta;
+	uint16_t		bcch_arfcn;
+	uint8_t			bcc, ncc;
+	uint16_t		start_time;
+};
+
+struct osmocom_bts *create_bts(uint8_t num_trx, char *id);
+int create_ms(struct osmobts_trx *trx, int maskc, uint8_t *maskv_tx,
+	uint8_t *maskv_rx);
+void destroy_bts(struct osmocom_bts *bts);
+int work_bts(struct osmocom_bts *bts);
+int bts_link_estab(struct osmocom_bts *bts);
+int trx_link_estab(struct osmobts_trx *trx);
+void bts_new_si(void *arg);
+void bts_setup_slot(struct osmobts_slot *slot, uint8_t comb);
+
+#endif /* _BTS_H */
+
diff --git a/include/osmo-bts/oml.h b/include/osmo-bts/oml.h
new file mode 100644
index 00000000..09ad1abd
--- /dev/null
+++ b/include/osmo-bts/oml.h
@@ -0,0 +1,9 @@
+#ifndef _OML_H
+#define _OML_H
+
+int down_oml(struct osmocom_bts *bts, struct msgb *msg);
+int oml_tx_sw_act_rep(struct ipabis_link *link, uint8_t obj_class, uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr);
+int oml_tx_state_changed(struct ipabis_link *link, uint8_t op_state, uint8_t avail_status, uint8_t obj_class, uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr);
+
+#endif // _OML_H */
+
diff --git a/include/osmo-bts/rsl.h b/include/osmo-bts/rsl.h
new file mode 100644
index 00000000..3f9c2c9a
--- /dev/null
+++ b/include/osmo-bts/rsl.h
@@ -0,0 +1,12 @@
+#ifndef _RSL_H
+#define _RSL_H
+
+int down_rsl(struct osmobts_trx *trx, struct msgb *msg);
+int rsl_tx_rf_res(struct osmobts_trx *trx);
+int rsl_tx_chan_rqd(struct osmobts_trx *trx);
+int rsl_tx_est_ind(struct osmobts_lchan *lchan, uint8_t link_id, uint8_t *data, int len);
+int rsl_tx_rll(struct msgb *msg, struct osmol2_entity *l2_entity);
+int rsl_tx_ipac_dlcx_ind(struct osmobts_lchan *lchan, uint8_t cause);
+
+#endif // _RSL_H */
+
diff --git a/include/osmo-bts/rtp.h b/include/osmo-bts/rtp.h
new file mode 100644
index 00000000..28800fa0
--- /dev/null
+++ b/include/osmo-bts/rtp.h
@@ -0,0 +1,47 @@
+#ifndef _RTP_H
+#define _RTP_H
+
+struct osmobts_lchan *lchan;
+
+#define RTP_PT_GSM_FULL 3
+#define RTP_PT_GSM_HALF 96
+#define RTP_PT_GSM_EFR 97
+#define RTP_PT_AMR_FULL 98
+#define RTP_PT_AMR_HALF 99
+
+struct osmobts_udp {
+	struct osmobts_rtp	*rtp;
+	struct bsc_fd		bfd;
+	struct sockaddr_in	sin_local, sin_remote;
+	struct llist_head	tx_queue;
+};
+
+struct osmobts_rtp {
+	struct osmobts_lchan	*lchan;
+	int			socket_created;
+	struct osmobts_udp	rtp_udp, rtcp_udp;
+	struct llist_head	dejitter_queue;
+	int			dejitter_num;
+	int			dejitter_min;
+	int			dejitter_check;
+	struct msgb		*last_frame;
+	uint8_t			payload_type;
+	uint16_t		sequence;
+	uint32_t		timestamp;
+	uint32_t		ssrc;
+	int			voice_req;
+};
+
+int rtp_create_socket(struct osmobts_lchan *lchan, struct osmobts_rtp *rtp);
+int rtp_bind_socket(struct osmobts_rtp *rtp);
+int rtp_connect_socket(struct osmobts_rtp *rtp, uint32_t ip, uint16_t port);
+int rtp_close_socket(struct osmobts_rtp *rtp);
+
+struct gsm_data_frame {
+	uint32_t	timestamp;
+	uint8_t		payload_type;
+	uint8_t		data[0];
+};
+
+#endif /* _RTP_H */
+
diff --git a/include/osmo-bts/support.h b/include/osmo-bts/support.h
new file mode 100644
index 00000000..ed378753
--- /dev/null
+++ b/include/osmo-bts/support.h
@@ -0,0 +1,30 @@
+#ifndef _BTS_SUPPORT_H
+#define _BTS_SUPPORT_H
+
+struct bts_support {
+	/* crypto supprot */
+	uint8_t a5_1;
+	uint8_t a5_2;
+	uint8_t a5_3;
+	uint8_t a5_4;
+	uint8_t a5_5;
+	uint8_t a5_6;
+	uint8_t a5_7;
+	/* radio support */
+	uint8_t freq_map[128];
+	/* codecs */
+	uint8_t chan_comb[256];
+	uint8_t full_v1;
+	uint8_t full_v2;
+	uint8_t full_v3;
+	uint8_t half_v1;
+	uint8_t half_v3;
+};
+
+extern struct bts_support bts_support;
+void bts_support_init(void);
+char *bts_support_comb_name(uint8_t chan_comb);
+
+#endif /* _SUPPORT_H */
+
+