diff options
Diffstat (limited to 'src/osmo-bts-litecell15')
-rw-r--r-- | src/osmo-bts-litecell15/l1_if.c | 33 | ||||
-rw-r--r-- | src/osmo-bts-litecell15/tch.c | 31 |
2 files changed, 32 insertions, 32 deletions
diff --git a/src/osmo-bts-litecell15/l1_if.c b/src/osmo-bts-litecell15/l1_if.c index 4a6c7399..632e769b 100644 --- a/src/osmo-bts-litecell15/l1_if.c +++ b/src/osmo-bts-litecell15/l1_if.c @@ -53,6 +53,7 @@ #include <osmo-bts/cbch.h> #include <osmo-bts/bts_model.h> #include <osmo-bts/l1sap.h> +#include <osmo-bts/msg_utils.h> #include <osmo-bts/dtx_dl_amr_fsm.h> #include <nrw/litecell15/litecell15.h> @@ -339,7 +340,6 @@ static int ph_data_req(struct gsm_bts_trx *trx, struct msgb *msg, uint32_t u32Fn; uint8_t u8Tn, subCh, u8BlockNbr = 0, sapi = 0; uint8_t chan_nr, link_id; - bool rec = false; int len; if (!msg) { @@ -355,6 +355,7 @@ static int ph_data_req(struct gsm_bts_trx *trx, struct msgb *msg, u32Fn = l1sap->u.data.fn; u8Tn = L1SAP_CHAN2TS(chan_nr); subCh = 0x1f; + lchan = get_lchan_by_chan_nr(trx, chan_nr); if (L1SAP_IS_LINK_SACCH(link_id)) { sapi = GsmL1_Sapi_Sacch; if (!L1SAP_IS_CHAN_TCHF(chan_nr)) @@ -404,8 +405,7 @@ static int ph_data_req(struct gsm_bts_trx *trx, struct msgb *msg, if (len) { /* data request */ GsmL1_Prim_t *l1p = msgb_l1prim(l1msg); - lchan = get_lchan_by_chan_nr(trx, chan_nr); - + data_req_from_l1sap(l1p, fl1, u8Tn, u32Fn, sapi, subCh, u8BlockNbr, len); if (use_cache) memcpy(l1p->u.phDataReq.msgUnitParam.u8Buffer, lchan->tch.dtx.facch, msgb_l2len(msg)); @@ -423,20 +423,25 @@ static int ph_data_req(struct gsm_bts_trx *trx, struct msgb *msg, memcpy(lchan->tch.dtx.facch, msg->l2h, msgb_l2len(msg)); /* prepare ONSET message */ - len = 3; l1p->u.phDataReq.msgUnitParam.u8Buffer[0] = GsmL1_TchPlType_Amr_Onset; /* ignored CMR/CMI pair */ l1p->u.phDataReq.msgUnitParam.u8Buffer[1] = 0; l1p->u.phDataReq.msgUnitParam.u8Buffer[2] = 0; - /* ONSET is ready, recursive call is necessary */ - rec = true; + /* update length */ + data_req_from_l1sap(l1p, fl1, u8Tn, u32Fn, sapi, + subCh, u8BlockNbr, 3); + /* update FN so it can be checked by TCH silence + resume handler */ + lchan->tch.dtx.fn = LCHAN_FN_DUMMY; } + } else if (dtx_dl_amr_enabled(lchan) && + lchan->tch.dtx.dl_amr_fsm->state == ST_FACCH) { + /* update FN so it can be checked by TCH silence + resume handler */ + lchan->tch.dtx.fn = LCHAN_FN_DUMMY; } - - data_req_from_l1sap(l1p, fl1, u8Tn, u32Fn, sapi, subCh, u8BlockNbr, len); - - if (!rec && !use_cache) { + else { OSMO_ASSERT(msgb_l2len(msg) <= sizeof(l1p->u.phDataReq.msgUnitParam.u8Buffer)); memcpy(l1p->u.phDataReq.msgUnitParam.u8Buffer, msg->l2h, msgb_l2len(msg)); @@ -455,9 +460,10 @@ static int ph_data_req(struct gsm_bts_trx *trx, struct msgb *msg, if (osmo_wqueue_enqueue(&fl1->write_q[MQ_L1_WRITE], l1msg) != 0) { LOGP(DL1P, LOGL_ERROR, "MQ_L1_WRITE queue full. Dropping msg.\n"); msgb_free(l1msg); - } + } else + dtx_int_signal(lchan); - if (rec) + if (dtx_recursion(lchan)) ph_data_req(trx, msg, l1sap, true); return 0; } @@ -536,8 +542,9 @@ static int ph_tch_req(struct gsm_bts_trx *trx, struct msgb *msg, } /* send message to DSP's queue */ osmo_wqueue_enqueue(&fl1->write_q[MQ_L1_WRITE], nmsg); + dtx_int_signal(lchan); - if (rc > 0 && trx->bts->dtxd) /* DTX: send voice after ONSET was sent */ + if (dtx_recursion(lchan)) /* DTX: send voice after ONSET was sent */ return ph_tch_req(trx, l1sap->oph.msg, l1sap, true, false); return 0; diff --git a/src/osmo-bts-litecell15/tch.c b/src/osmo-bts-litecell15/tch.c index 74950738..de3c7e35 100644 --- a/src/osmo-bts-litecell15/tch.c +++ b/src/osmo-bts-litecell15/tch.c @@ -305,9 +305,6 @@ int l1if_tch_encode(struct gsm_lchan *lchan, uint8_t *data, uint8_t *len, *payload_type = GsmL1_TchPlType_Amr; rtppayload_to_l1_amr(l1_payload + 2, rtp_pl, rtp_pl_len, ft); - /* force STI bit to 0 to make sure resume after FACCH - works properly */ - l1_payload[6 + 2] &= ~16; return 0; case ST_SID_F2: *payload_type = GsmL1_TchPlType_Amr; @@ -326,7 +323,6 @@ int l1if_tch_encode(struct gsm_lchan *lchan, uint8_t *data, uint8_t *len, return 1; case ST_SID_U: return -EAGAIN; - case ST_FACCH_V: case ST_FACCH: return -EBADMSG; default: @@ -496,19 +492,17 @@ struct msgb *gen_empty_tch_msg(struct gsm_lchan *lchan, uint32_t fn) switch (lchan->tch_mode) { case GSM48_CMODE_SPEECH_AMR: if (lchan->type == GSM_LCHAN_TCH_H && - lchan->tch.dtx.dl_amr_fsm->state == ST_SID_F1 && dtx_dl_amr_enabled(lchan)) { + /* we have to explicitly handle sending SID FIRST P2 for + AMR HR in here */ *payload_type = GsmL1_TchPlType_Amr_SidFirstP2; rc = dtx_dl_amr_fsm_step(lchan, NULL, 0, fn, l1_payload, false, &(msu_param->u8Size), NULL); - if (rc < 0) { - msgb_free(msg); - return NULL; - } - return msg; - } else - *payload_type = GsmL1_TchPlType_Amr; + if (rc == 0) + return msg; + } + *payload_type = GsmL1_TchPlType_Amr; break; case GSM48_CMODE_SPEECH_V1: if (lchan->type == GSM_LCHAN_TCH_F) @@ -524,13 +518,12 @@ struct msgb *gen_empty_tch_msg(struct gsm_lchan *lchan, uint32_t fn) return NULL; } - if (dtx_dl_amr_enabled(lchan)) { - rc = repeat_last_sid(lchan, l1_payload, fn); - if (!rc) { - msgb_free(msg); - return NULL; - } - msu_param->u8Size = rc; + rc = repeat_last_sid(lchan, l1_payload, fn); + if (!rc) { + msgb_free(msg); + return NULL; } + msu_param->u8Size = rc; + return msg; } |