laforge has submitted this change. (
https://gerrit.osmocom.org/c/osmo-trx/+/20072 )
Change subject: [cosmetic] radioInterfaceMulti: More comments
......................................................................
[cosmetic] radioInterfaceMulti: More comments
Change-Id: If608627a77c39b5faabc72c7dd72d00fae8697a9
---
M Transceiver52M/radioInterfaceMulti.cpp
1 file changed, 9 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
laforge: Looks good to me, approved
diff --git a/Transceiver52M/radioInterfaceMulti.cpp
b/Transceiver52M/radioInterfaceMulti.cpp
index 29f85ca..e654184 100644
--- a/Transceiver52M/radioInterfaceMulti.cpp
+++ b/Transceiver52M/radioInterfaceMulti.cpp
@@ -38,6 +38,7 @@
/* Universal resampling parameters */
#define NUMCHUNKS 24
+/* number of narrow-band virtual ARFCNs in this wide-band multi-ARFCN device */
#define MCHANS 4
RadioInterfaceMulti::RadioInterfaceMulti(RadioDevice *radio, size_t tx_sps,
@@ -79,6 +80,10 @@
RadioInterface::close();
}
+/*! we re-map the physical channels from the filter bank to logical per-TRX
channels
+ * \param[in] pchan physical channel number within the channelizer
+ * \param[in] chans total number of narrow-band ARFCN channels
+ * \returns logical (TRX) channel number, or -1 in case there is none */
static int getLogicalChan(size_t pchan, size_t chans)
{
switch (chans) {
@@ -113,6 +118,9 @@
return -1;
}
+/*! do we need to frequency shift our spectrum or not?
+ * \param chans total number of channels
+ * \returns 1 if we need to shift; 0 if not; -1 on error */
static int getFreqShift(size_t chans)
{
switch (chans) {
@@ -154,6 +162,7 @@
tx_freq_state.resize(mChans);
active.resize(MCHANS, false);
+ /* 4 == sps */
inchunk = RESAMP_INRATE * 4;
outchunk = RESAMP_OUTRATE * 4;
--
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Gerrit-Project: osmo-trx
Gerrit-Branch: master
Gerrit-Change-Id: If608627a77c39b5faabc72c7dd72d00fae8697a9
Gerrit-Change-Number: 20072
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-MessageType: merged
