module PCUIF_Types {

import from General_Types all;
import from Osmocom_Types all;

/* Osmocom PCU Interface Types, as per osmo-pcu/include/osmocom/pcu/pcuif_proto.h */

const charstring PCU_SOCK_DEFAULT := "/tmp/pcu_bts";
const uint32_t PCU_IF_VERSION := 8;

type enumerated PCUIF_MsgType {
	PCU_IF_MSG_DATA_REQ		('00'O),
	PCU_IF_MSG_DATA_CNF		('01'O),
	PCU_IF_MSG_DATA_IND		('02'O),
	PCU_IF_MSG_SUSP_REQ		('03'O),
	PCU_IF_MSG_RTS_REQ		('10'O),
	PCU_IF_MSG_DATA_CNF_DT		('11'O),
	PCU_IF_MSG_RACH_IND		('22'O),
	PCU_IF_MSG_INFO_IND		('32'O),
	PCU_IF_MSG_ACT_REQ		('40'O),
	PCU_IF_MSG_TIME_IND		('52'O),
	PCU_IF_MSG_PAG_REQ		('60'O),
	PCU_IF_MSG_TXT_IND		('70'O)
} with { variant "FIELDLENGTH(8)" };

type enumerated PCUIF_Sapi {
	PCU_IF_SAPI_UNKNOWN		('00'O),
	PCU_IF_SAPI_RACH		('01'O),
	PCU_IF_SAPI_AGCH		('02'O),
	PCU_IF_SAPI_PCH			('03'O),
	PCU_IF_SAPI_BCCH		('04'O),
	PCU_IF_SAPI_PDTCH		('05'O),
	PCU_IF_SAPI_PRACH		('06'O),
	PCU_IF_SAPI_PTCCH		('07'O),
	PCU_IF_SAPI_AGCH_DT		('08'O)
} with { variant "FIELDLENGTH(8)" };

type record PCUIF_Flags {
	boolean		bts_active,
	boolean		sysmo_direct_dsp,
	BIT14		spare,
	boolean		cs1,
	boolean		cs2,
	boolean		cs3,
	boolean		cs4,
	boolean		mcs1,
	boolean		mcs2,
	boolean		mcs3,
	boolean		mcs4,
	boolean		mcs5,
	boolean		mcs6,
	boolean		mcs7,
	boolean		mcs8,
	boolean		mcs9,
	BIT3		spare2
} with { variant "" };

type enumerated PCUIF_TextType {
	PCU_VERSION			(0),
	PCU_OML_ALERT			(1)
} with { variant "FIELDLENGTH(8)" };

type charstring PCUIF_Text length(128) with { variant "FIELDLENGTH(128)" };

type record PCUIF_txt_ind {
	PCUIF_TextType	txt_type,
	PCUIF_Text	text
} with { variant "" };

type octetstring OCT162 length(162) with { variant "FIELDLENGTH(162)" };

type record PCUIF_data {
	PCUIF_Sapi	sapi,
	uint8_t		len,
	OCT162		data,
	uint32_t	fn,
	uint16_t	arfcn,
	uint8_t		trx_nr,
	uint8_t		ts_nr,
	uint8_t		block_nr,
	int8_t		rssi,
	uint16_t	ber10k,
	int16_t		ta_offs_qbits,
	int16_t		lqual_cb
} with { variant "" };

type record PCUIF_data_cnf_dt {
	PCUIF_Sapi	sapi,
	OCT4		tlli,
	uint32_t	fn,
	uint16_t	arfcn,
	uint8_t		trx_nr,
	uint8_t		ts_nr,
	uint8_t		block_nr,
	int8_t		rssi,
	uint16_t	ber10k,
	int16_t		ta_offs_qbits,
	int16_t		lqual_cb
} with { variant "" };

type record PCUIF_rts_req {
	PCUIF_Sapi	sapi,
	OCT3		spare,
	uint32_t	fn,
	uint16_t	arfcn,
	uint8_t		trx_nr,
	uint8_t		ts_nr,
	uint8_t		block_nr
} with { variant "" };

type record PCUIF_rach_ind {
	PCUIF_Sapi	sapi,
	uint16_t	ra,
	int16_t		qta,
	uint32_t	fn,
	uint16_t	arfcn,
	uint8_t		is_11bit,
	uint8_t		burst_type
} with { variant "" };

type record PCUIF_InfoTrx {
	uint16_t	arfcn,
	BIT8		pdch_mask,
	OCT1		spare,
	OCT8		tsc,
	uint32_t	hLayer1
} with { variant "" };

type record PCUIF_info_ind {
	uint32_t	version,
	PCUIF_Flags	flags,
	record length(8) of PCUIF_InfoTrx	trx,
	uint8_t		bsic,

	uint16_t	mcc,
	uint16_t	mnc,
	uint16_t	lac,
	uint16_t	rac,

	uint16_t	nsei,
	record length(7) of uint8_t nse_timer,
	record length(11) of uint8_t cell_timer,

	uint16_t	cell_id,
	uint16_t	repeat_time,
	uint8_t		repeat_count,
	uint16_t	bvci,
	uint8_t		t3142,
	uint8_t		t3169,
	uint8_t		t3191,
	uint8_t		t3193_10ms,
	uint8_t		t3195,
	uint8_t		t3101,
	uint8_t		t3103,
	uint8_t		t3105,
	uint8_t		cv_countdown,
	uint16_t	dl_tbf_ext,
	uint16_t	ul_tbf_ext,
	uint8_t		initial_cs,
	uint8_t		initial_mcs,

	record length(2) of uint16_t	nsvci,
	record length(2) of uint16_t	local_pprt,
	record length(2) of uint16_t	remote_port,
	record length(2) of uint32_t	remote_ip
} with { variant "" }

type record PCUIF_act_req {
	uint8_t		is_activate,
	uint8_t		trx_nr,
	uint8_t		ts_nr,
	OCT1		spare
} with { variant "" };

type record PCUIF_time_ind {
	uint32_t	fn
} with { variant "" };

type record PCUIF_pag_req {
	PCUIF_Sapi	sapi,
	uint8_t		chan_needed,
	OCT9		identity_lv
} with { variant "" };

type record PCUIF_susp_req {
	OCT4		tlli,
	OCT6		ra_id,
	uint8_t		cause
} with { variant "" };


type union PCUIF_MsgUnion {
	PCUIF_data		data_req,
	PCUIF_data		data_cnf,
	PCUIF_data_cnf_dt	data_cnf_dt,
	PCUIF_data		data_ind,
	PCUIF_susp_req		susp_req,
	PCUIF_rts_req		rts_req,
	PCUIF_rach_ind		rach_ind,
	PCUIF_txt_ind		txt_ind,
	PCUIF_info_ind		info_ind,
	PCUIF_act_req		act_req,
	PCUIF_time_ind		time_ind,
	PCUIF_pag_req		pag_req
} with { variant "" };

type record PCUIF_Message {
	PCUIF_MsgType	msg_type,
	uint8_t		bts_nr,
	OCT2		spare,
	PCUIF_MsgUnion	u
} with { variant (u) "CROSSTAG(
				data_req, 	msg_type = PCU_IF_MSG_DATA_REQ;
				data_cnf,	msg_type = PCU_IF_MSG_DATA_CNF;
				data_cnf_dt,	msg_type = PCU_IF_MSG_DATA_CNF_DT;
				data_ind,	msg_type = PCU_IF_MSG_DATA_IND;
				susp_req,	msg_type = PCU_IF_MSG_SUSP_REQ;
				rts_req,	msg_type = PCU_IF_MSG_RTS_REQ;
				rach_ind,	msg_type = PCU_IF_MSG_RACH_IND;
				txt_ind,	msg_type = PCU_IF_MSG_TXT_IND;
				info_ind,	msg_type = PCU_IF_MSG_INFO_IND;
				act_req,	msg_type = PCU_IF_MSG_ACT_REQ;
				time_ind,	msg_type = PCU_IF_MSG_TIME_IND;
				pag_req,	msg_type = PCU_IF_MSG_PAG_REQ)"
	 variant "PADDING(1688)"
};

external function enc_PCUIF_Message(in PCUIF_Message pdu) return octetstring
	with { extension "prototype(convert) encode(RAW)" };
external function dec_PCUIF_Message(in octetstring stream) return PCUIF_Message
	with { extension "prototype(convert) decode(RAW)" };


template PCUIF_Message tr_PCUIF_RTS_REQ(template uint8_t bts_nr := ?,
					template uint8_t trx_nr := ?,
					template uint8_t ts_nr := ?,
					template PCUIF_Sapi sapi := ?,
					template uint32_t fn := ?,
					template uint8_t block_nr := ?
					) := {
	msg_type := PCU_IF_MSG_RTS_REQ,
	bts_nr := bts_nr,
	spare := ?,
	u := {
		rts_req := {
			sapi := sapi,
			spare := ?,
			fn := fn,
			arfcn := ?,
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			block_nr := block_nr
		}
	}
}

template (value) PCUIF_Message ts_PCUIF_TXT_IND(uint8_t bts_nr, PCUIF_TextType tt, charstring text) := {
	msg_type := PCU_IF_MSG_TXT_IND,
	bts_nr := bts_nr,
	spare := '0000'O,
	u := {
		txt_ind := {
			txt_type := tt,
			text := text
		}
	}
}

template (value) PCUIF_Message ts_PCUIF_ACT_REQ(uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr) := {
	msg_type := PCU_IF_MSG_ACT_REQ,
	bts_nr := bts_nr,
	spare := '0000'O,
	u := {
		act_req := {
			is_activate := 1,
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			spare := '00'O
		}
	}
}

template (value) PCUIF_Message ts_PCUIF_DEACT_REQ(uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr) := {
	msg_type := PCU_IF_MSG_ACT_REQ,
	bts_nr := bts_nr,
	spare := '0000'O,
	u := {
		act_req := {
			is_activate := 0,
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			spare := '00'O
		}
	}
}

template PCUIF_Message tr_PCUIF_DATA_IND(template uint8_t bts_nr := ?,
					 template uint8_t trx_nr := ?,
					 template uint8_t ts_nr := ?,
					 template uint8_t block_nr := ?,
					 template PCUIF_Sapi sapi := ?,
					 template OCT162 data := ?) := {
	msg_type := PCU_IF_MSG_DATA_IND,
	bts_nr := bts_nr,
	spare := ?,
	u := {
		data_ind := {
			sapi := sapi,
			len := ?,
			data := data,
			fn := ?,
			arfcn := ?,
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			block_nr := block_nr,
			rssi := ?,
			ber10k := ?,
			ta_offs_qbits := ?,
			lqual_cb := ?
		}
	}
}

template (value) PCUIF_Message ts_PCUIF_DATA_REQ(uint8_t bts_nr, uint8_t trx_nr,
						 uint8_t ts_nr, uint8_t block_nr,
						 uint32_t fn, PCUIF_Sapi sapi,
						 octetstring data) := {
	msg_type := PCU_IF_MSG_DATA_REQ,
	bts_nr := bts_nr,
	spare := '0000'O,
	u := {
		data_req := {
			sapi := sapi,
			len := lengthof(data),
			data := data,
			fn := fn,
			arfcn := 0, /* unused in BTS */
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			block_nr := block_nr,
			/* measurement parameters below unused on Tx */
			rssi := 0,
			ber10k := 0,
			ta_offs_qbits := 0,
			lqual_cb := 0
		}
	}
}

template PCUIF_Message tr_PCUIF_DATA_CNF(template uint8_t bts_nr := ?,
					 template uint8_t trx_nr := ?,
					 template uint8_t ts_nr := ?,
					 template PCUIF_Sapi sapi := ?,
					 template octetstring data := ?) := {
	msg_type := PCU_IF_MSG_DATA_CNF,
	bts_nr := bts_nr,
	spare := ?,
	u := {
		data_cnf := {
			sapi := sapi,
			len := ?,
			data := data,
			fn := ?,
			arfcn := ?,
			trx_nr := trx_nr,
			ts_nr := ts_nr,
			block_nr := ?,
			rssi := ?,
			ber10k := ?,
			ta_offs_qbits := ?,
			lqual_cb := ?
		}
	}
}

template PCUIF_Message tr_PCUIF_RACH_IND(template uint8_t bts_nr := ?,
					 template uint16_t ra := ?,
					 template uint8_t is_11bit := ?,
					 template uint8_t burst_type := ?,
					 template uint32_t fn := ?) := {
	msg_type := PCU_IF_MSG_RACH_IND,
	bts_nr := bts_nr,
	spare := ?,
	u := {
		rach_ind := {
			sapi := PCU_IF_SAPI_RACH,
			ra := ra,
			qta := ?,
			fn := fn,
			arfcn := ?,
			is_11bit := is_11bit,
			burst_type := burst_type
		}
	}
}

template PCUIF_Message tr_PCUIF_PAG_REQ(template uint8_t bts_nr := ?,
					 template OCT9 id_lv := ?,
					 template uint8_t chan_needed := ?,
					 template PCUIF_Sapi sapi := ?) := {
	msg_type := PCU_IF_MSG_PAG_REQ,
	bts_nr := bts_nr,
	spare := ?,
	u := {
		pag_req := {
			sapi := ?,
			chan_needed := chan_needed,
			identity_lv := id_lv
		}
	}
}


} with { encode "RAW" variant "BYTEORDER(first)" };