fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/33100 ) Change subject: l1gprs: properly handle (forward) PTCCH/D blocks ...................................................................... l1gprs: properly handle (forward) PTCCH/D blocks Unconditionally forward PTCCH/D blocks towards the upper layers. Calling l1gprs_pdch_filter_dl_block() on them makes no sense. Change-Id: Ifcc53d442426c8bfdacd3d179e20bb45c43f4644 Fixes: BTS_Tests.TC_pcu_ptcch (DL part) Related: OS#5500 --- M src/shared/l1gprs.c 1 file changed, 24 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/00/33100/1 diff --git a/src/shared/l1gprs.c b/src/shared/l1gprs.c index 5874b48..fd18e4e 100644 --- a/src/shared/l1gprs.c +++ b/src/shared/l1gprs.c @@ -383,6 +383,10 @@ return 0; } +/* Check if a Downlink block is a PTCCH/D (see 3GPP TS 45.002, table 6) */ +#define BLOCK_IND_IS_PTCCH(ind) \ + (((ind)->hdr.fn % 104) == 12) + struct msgb *l1gprs_handle_dl_block_ind(struct l1gprs_state *gprs, const struct l1gprs_prim_dl_block_ind *ind) { @@ -401,7 +405,8 @@ pdch = &gprs->pdch[ind->hdr.tn]; LOGP_PDCH(pdch, LOGL_DEBUG, - "Rx DL BLOCK.ind (fn=%u, len=%zu): %s\n", + "Rx DL BLOCK.ind (%s, fn=%u, len=%zu): %s\n", + BLOCK_IND_IS_PTCCH(ind) ? "PTCCH" : "PDTCH", ind->hdr.fn, ind->data_len, osmo_hexdump(ind->data, ind->data_len)); if ((pdch->ul_tbf_count == 0) && (pdch->dl_tbf_count == 0)) { @@ -432,6 +437,10 @@ if (ind->data_len == 0) return msg; + if (BLOCK_IND_IS_PTCCH(ind)) { + memcpy(msgb_put(msg, ind->data_len), ind->data, ind->data_len); + return msg; + } cs = osmo_gprs_dl_cs_by_block_bytes(ind->data_len); switch (cs) { -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/33100 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: Ifcc53d442426c8bfdacd3d179e20bb45c43f4644 Gerrit-Change-Number: 33100 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-MessageType: newchange