cellular-infrastructure
/
osmo-trx
mirror of https://gerrit.osmocom.org/osmo-trx
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

lms: Use same timestamp offset like when using LimeSDR via UHD 

The tx timestamp offset was not set. We set it to the same value as it
was in UHD interface for LimeSDR

Change-Id: I78bc40cd575097f71a5f82b63467fa81c3f8d837
This commit is contained in:
Zydrunas Tamosevicius 2018-06-12 00:27:09 +02:00 committed by Harald Welte
parent 6493dc838b
commit 43f3678b40
1 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Transceiver52M/device/lms/LMSDevice.cpp
View File

@ -139,8 +139,7 @@ int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
LOG(DEBUG) << "Sample Rate: Host=" << sr_host << " RF=" << sr_rf;
/* FIXME: make this device/model dependent, like UHDDevice:dev_param_map! */
//ts_offset = static_cast<TIMESTAMP>(8.9e-5 * GSMRATE);
ts_offset = 0;
ts_offset = static_cast<TIMESTAMP>(8.9e-5 * GSMRATE * sps); /* time * sample_rate */
switch (ref) {
case REF_INTERNAL:
@ -489,8 +488,6 @@ int LMSDevice::readSamples(std::vector < short *>&bufs, int len, bool * overrun,
lms_stream_meta_t rx_metadata = {};
rx_metadata.flushPartialPacket = false;
rx_metadata.waitForTimestamp = false;
/* Shift read time with respect to transmit clock */
timestamp += ts_offset;
rx_metadata.timestamp = 0;
if (bufs.size() != chans) {
@ -539,7 +536,7 @@ int LMSDevice::writeSamples(std::vector < short *>&bufs, int len,
lms_stream_meta_t tx_metadata = {};
tx_metadata.flushPartialPacket = false;
tx_metadata.waitForTimestamp = true;
tx_metadata.timestamp = timestamp;
tx_metadata.timestamp = timestamp - ts_offset; /* Shift Tx time by offset */
if (isControl) {
LOG(ERR) << "Control packets not supported";