bts: Move gprs_rlcmac_trigger_downlink_assignment into BTS
diff --git a/src/bts.cpp b/src/bts.cpp
index 8bb0f26..9fd4fc3 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -331,6 +331,44 @@
return 0;
}
+/* depending on the current TBF, we assign on PACCH or AGCH */
+void BTS::trigger_dl_ass(
+ struct gprs_rlcmac_tbf *tbf,
+ struct gprs_rlcmac_tbf *old_tbf, const char *imsi)
+{
+ /* stop pending timer */
+ tbf->stop_timer();
+
+ /* check for downlink tbf: */
+ if (old_tbf) {
+ LOGP(DRLCMAC, LOGL_DEBUG, "Send dowlink assignment on "
+ "PACCH, because %s TBF=%d exists for TLLI=0x%08x\n",
+ (old_tbf->direction == GPRS_RLCMAC_UL_TBF)
+ ? "UL" : "DL", old_tbf->tfi, old_tbf->tlli);
+ old_tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS;
+ /* use TA from old TBF */
+ tbf->ta = old_tbf->ta;
+ /* change state */
+ tbf_new_state(tbf, GPRS_RLCMAC_ASSIGN);
+ tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH);
+ /* start timer */
+ tbf_timer_start(tbf, 0, Tassign_pacch);
+ } else {
+ LOGP(DRLCMAC, LOGL_DEBUG, "Send dowlink assignment for TBF=%d on PCH, no TBF exist (IMSI=%s)\n", tbf->tfi, imsi);
+ if (!imsi || strlen(imsi) < 3) {
+ LOGP(DRLCMAC, LOGL_ERROR, "No valid IMSI!\n");
+ return;
+ }
+ /* change state */
+ tbf_new_state(tbf, GPRS_RLCMAC_ASSIGN);
+ tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_CCCH);
+ strncpy(tbf->dir.dl.imsi, imsi, sizeof(tbf->dir.dl.imsi));
+ /* send immediate assignment */
+ tbf->bts->snd_dl_ass(tbf, 0, imsi);
+ tbf->dir.dl.wait_confirm = 1;
+ }
+}
+
void BTS::snd_dl_ass(gprs_rlcmac_tbf *tbf, uint8_t poll, const char *imsi)
{
int plen;