From d011e8b958f3d5a09d1c66852292974d9dc52786 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 29 Nov 2009 22:45:52 +0100 Subject: [handover] Introduce new handover related LCHAN signals This introduces the signals S_LCHAN_ACTIVATE_{ACK,NACK} and S_LCAN_HANDOVER_{FAIL,COMPL,DETECT} as well as code that actually issues those signals. The signals are relevant for a yet-to-be-written handover control logic. --- openbsc/src/abis_rsl.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) (limited to 'openbsc/src/abis_rsl.c') diff --git a/openbsc/src/abis_rsl.c b/openbsc/src/abis_rsl.c index 743dc5f2b..8033a3c74 100644 --- a/openbsc/src/abis_rsl.c +++ b/openbsc/src/abis_rsl.c @@ -907,7 +907,9 @@ static int rsl_rx_chan_act_ack(struct msgb *msg) * to assign the activated channel to the MS */ if (rslh->ie_chan != RSL_IE_CHAN_NR) return -EINVAL; - + + dispatch_signal(SS_LCHAN, S_LCHAN_ACTIVATE_ACK, msg->lchan); + return 0; } @@ -926,6 +928,8 @@ static int rsl_rx_chan_act_nack(struct msgb *msg) print_rsl_cause(TLVP_VAL(&tp, RSL_IE_CAUSE), TLVP_LEN(&tp, RSL_IE_CAUSE)); + dispatch_signal(SS_LCHAN, S_LCHAN_ACTIVATE_NACK, msg->lchan); + lchan_free(msg->lchan); return 0; } @@ -1050,6 +1054,27 @@ static int rsl_rx_meas_res(struct msgb *msg) return 0; } +/* Chapter 8.4.7 */ +static int rsl_rx_hando_det(struct msgb *msg) +{ + struct abis_rsl_dchan_hdr *dh = msgb_l2(msg); + struct tlv_parsed tp; + + DEBUGP(DRSL, "HANDOVER DETECT "); + + rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg)-sizeof(*dh)); + + if (TLVP_PRESENT(&tp, RSL_IE_ACCESS_DELAY)) + DEBUGPC(DRSL, "access delay = %u\n", + *TLVP_VAL(&tp, RSL_IE_ACCESS_DELAY)); + else + DEBUGPC(DRSL, "\n"); + + dispatch_signal(SS_LCHAN, S_LCHAN_HANDOVER_DETECT, msg->lchan); + + return 0; +} + static int abis_rsl_rx_dchan(struct msgb *msg) { struct abis_rsl_dchan_hdr *rslh = msgb_l2(msg); @@ -1077,6 +1102,9 @@ static int abis_rsl_rx_dchan(struct msgb *msg) case RSL_MT_MEAS_RES: rc = rsl_rx_meas_res(msg); break; + case RSL_MT_HANDO_DET: + rc = rsl_rx_hando_det(msg); + break; case RSL_MT_RF_CHAN_REL_ACK: DEBUGPC(DRSL, "RF CHANNEL RELEASE ACK\n"); lchan_free(msg->lchan); -- cgit v1.2.3