edge: Implement gprs_rlcmac_pdch::rcv_block_egprs
This commit replaces the stub by a method that decodes the block
first, and passes it to the TBF object associated with the TFI.
Sponsored-by: On-Waves ehf
diff --git a/src/bts.cpp b/src/bts.cpp
index 8a99d61..fdbcfde 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -1170,6 +1170,14 @@
int gprs_rlcmac_pdch::rcv_block_egprs(uint8_t *data, uint32_t fn,
struct pcu_l1_meas *meas, GprsCodingScheme cs)
{
+ int rc;
+ struct gprs_rlc_ul_header_egprs rlc_dec;
+ struct gprs_rlcmac_ul_tbf *tbf;
+ unsigned len = cs.maxBytesUL();
+
+ /* These are always data blocks, since EGPRS still uses CS-1 for
+ * control blocks (see 44.060, section 10.3, 1st par.)
+ */
if (!bts()->bts_data()->egprs_enabled) {
LOGP(DRLCMACUL, LOGL_ERROR,
"Got %s RLC block but EGPRS is not enabled\n",
@@ -1185,11 +1193,32 @@
return -EINVAL;
}
- LOGP(DRLCMACUL, LOGL_ERROR,
- "Got %s RLC block but EGPRS decoding is not implemented yet\n",
- cs.name());
- bts()->decode_error();
- return -EINVAL;
+ rc = Decoding::rlc_parse_ul_data_header(&rlc_dec, data, cs);
+ if (rc < 0) {
+ LOGP(DRLCMACUL, LOGL_ERROR,
+ "Got %s RLC block but header parsing has failed\n",
+ cs.name());
+ bts()->decode_error();
+ return rc;
+ }
+
+ LOGP(DRLCMACUL, LOGL_INFO,
+ "Got %s RLC block: "
+ "R=%d, SI=%d, TFI=%d, CPS=%d, RSB=%d, "
+ "rc=%d\n",
+ cs.name(),
+ rlc_dec.r, rlc_dec.si, rlc_dec.tfi, rlc_dec.cps, rlc_dec.rsb,
+ rc);
+
+ /* find TBF inst from given TFI */
+ tbf = ul_tbf_by_tfi(rlc_dec.tfi);
+ if (!tbf) {
+ LOGP(DRLCMACUL, LOGL_NOTICE, "UL DATA unknown TFI=%d\n",
+ rlc_dec.tfi);
+ return 0;
+ }
+
+ return tbf->rcv_data_block_acknowledged(&rlc_dec, data, len, meas);
}
int gprs_rlcmac_pdch::rcv_block_gprs(uint8_t *data, uint32_t fn,