<p>pespin has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmo-trx/+/16878">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">lms: Initial multi-arfcn support<br><br>With current state multi-arfcn can be used (eg. I can place a call<br>between 2 phones using TRX1 and sustain for as long as wanted), but from<br>time to time (around every 20seconds), a burst of Tx packed dropped<br>events from LimeSuite appears.<br><br>LimeNet-micro coefficients have yet not been tested.<br><br>Change-Id: I7e67d90a8126546eeeeba376f816ec5d158d4712<br>---<br>M Transceiver52M/device/lms/LMSDevice.cpp<br>1 file changed, 17 insertions(+), 7 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-trx refs/changes/78/16878/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp</span><br><span>index d9cc371..7d67158 100644</span><br><span>--- a/Transceiver52M/device/lms/LMSDevice.cpp</span><br><span>+++ b/Transceiver52M/device/lms/LMSDevice.cpp</span><br><span>@@ -68,17 +68,21 @@</span><br><span> double max_tx_gain;</span><br><span> /* Sample rate coef (without having TX/RX samples per symbol into account) */</span><br><span> double rate;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Sample rate coef (without having TX/RX samples per symbol into account), if multi-arfcn is enabled */</span><br><span style="color: hsl(120, 100%, 40%);">+ double rate_multiarfcn;</span><br><span> /* Coefficient multiplied by TX sample rate in order to shift Tx time */</span><br><span> double ts_offset_coef;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Coefficient multiplied by TX sample rate in order to shift Tx time, if multi-arfcn is enabled */</span><br><span style="color: hsl(120, 100%, 40%);">+ double ts_offset_coef_multiarfcn;</span><br><span> /* Device Name Prefix as presented by LimeSuite API LMS_GetDeviceInfo() */</span><br><span> std::string name_prefix;</span><br><span> };</span><br><span> </span><br><span> static const std::map<enum lms_dev_type, struct dev_desc> dev_param_map {</span><br><span style="color: hsl(0, 100%, 40%);">- { LMS_DEV_SDR_USB, { true, true, 73.0, GSMRATE, 8.9e-5, LMS_DEV_SDR_USB_PREFIX_NAME } },</span><br><span style="color: hsl(0, 100%, 40%);">- { LMS_DEV_SDR_MINI, { false, true, 66.0, GSMRATE, 8.9e-5, LMS_DEV_SDR_MINI_PREFIX_NAME } },</span><br><span style="color: hsl(0, 100%, 40%);">- { LMS_DEV_NET_MICRO, { true, false, 71.0, GSMRATE, 8.9e-5, LMS_DEV_NET_MICRO_PREFIX_NAME } },</span><br><span style="color: hsl(0, 100%, 40%);">- { LMS_DEV_UNKNOWN, { true, true, 73.0, GSMRATE, 8.9e-5, "UNKNOWN" } },</span><br><span style="color: hsl(120, 100%, 40%);">+ { LMS_DEV_SDR_USB, { true, true, 73.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_SDR_USB_PREFIX_NAME } },</span><br><span style="color: hsl(120, 100%, 40%);">+ { LMS_DEV_SDR_MINI, { false, true, 66.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 8.2e-5, LMS_DEV_SDR_MINI_PREFIX_NAME } },</span><br><span style="color: hsl(120, 100%, 40%);">+ { LMS_DEV_NET_MICRO, { true, false, 71.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, LMS_DEV_NET_MICRO_PREFIX_NAME } },</span><br><span style="color: hsl(120, 100%, 40%);">+ { LMS_DEV_UNKNOWN, { true, true, 73.0, GSMRATE, MCBTS_SPACING, 8.9e-5, 7.9e-5, "UNKNOWN" } },</span><br><span> };</span><br><span> </span><br><span> static enum lms_dev_type parse_dev_type(lms_device_t *m_lms_dev)</span><br><span>@@ -294,7 +298,10 @@</span><br><span> goto out_close;</span><br><span> print_range("Sample Rate", &range_sr);</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- sr_host = dev_desc.rate * tx_sps;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (iface == MULTI_ARFCN)</span><br><span style="color: hsl(120, 100%, 40%);">+ sr_host = dev_desc.rate_multiarfcn * tx_sps;</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ sr_host = dev_desc.rate * tx_sps;</span><br><span> LOGC(DDEV, INFO) << "Setting sample rate to " << sr_host << " " << tx_sps;</span><br><span> if (LMS_SetSampleRate(m_lms_dev, sr_host, 32) < 0)</span><br><span> goto out_close;</span><br><span>@@ -303,7 +310,10 @@</span><br><span> goto out_close;</span><br><span> LOGC(DDEV, INFO) << "Sample Rate: Host=" << sr_host << " RF=" << sr_rf;</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef * sr_host);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (iface == MULTI_ARFCN)</span><br><span style="color: hsl(120, 100%, 40%);">+ ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef_multiarfcn * sr_host);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ ts_offset = static_cast<TIMESTAMP>(dev_desc.ts_offset_coef * sr_host);</span><br><span> </span><br><span> /* configure antennas */</span><br><span> if (!set_antennas()) {</span><br><span>@@ -311,7 +321,7 @@</span><br><span> goto out_close;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- return NORMAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ return iface == MULTI_ARFCN ? MULTI_ARFCN : NORMAL;</span><br><span> </span><br><span> out_close:</span><br><span> LOGC(DDEV, FATAL) << "Error in LMS open, closing: " << LMS_GetLastErrorMessage();</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmo-trx/+/16878">change 16878</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/osmo-trx/+/16878"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-trx </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I7e67d90a8126546eeeeba376f816ec5d158d4712 </div>
<div style="display:none"> Gerrit-Change-Number: 16878 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: pespin <pespin@sysmocom.de> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>