From f6e3913f80ec15f2a554dc2ad1fe219cefd1f5d2 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Tue, 12 Mar 2019 15:59:29 +0100
Subject: Lime: show fifo fill percent in RC

---
 src/output/Lime.cpp | 6 +++---
 src/output/Lime.h   | 4 ++--
 src/output/SDR.cpp  | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/output/Lime.cpp b/src/output/Lime.cpp
index fff3dd4..1d4c581 100644
--- a/src/output/Lime.cpp
+++ b/src/output/Lime.cpp
@@ -355,9 +355,9 @@ double Lime::get_temperature(void) const
     return temp;
 }
 
-uint32_t Lime::get_fifo_fill_count(void) const
+float Lime::get_fifo_fill_percent(void) const
 {
-    return m_last_fifo_filled_count;
+    return m_last_fifo_fill_percent * 100;
 }
 
 void Lime::transmit_frame(const struct FrameData &frame)
@@ -383,7 +383,7 @@ void Lime::transmit_frame(const struct FrameData &frame)
     etiLog.level(info) << "overrun" << LimeStatus.overrun << "underun" << LimeStatus.underrun << "drop" << LimeStatus.droppedPackets;
 #endif
 
-    m_last_fifo_filled_count.store(LimeStatus.fifoFilledCount);
+    m_last_fifo_fill_percent.store((float)LimeStatus.fifoFilledCount / (float)LimeStatus.fifoSize);
 
     /*
     if(LimeStatus.fifoFilledCount>=5*FRAME_LENGTH*m_interpolate) // Start if FIFO is half full {
diff --git a/src/output/Lime.h b/src/output/Lime.h
index febb878..48fb648 100644
--- a/src/output/Lime.h
+++ b/src/output/Lime.h
@@ -81,7 +81,7 @@ class Lime : public Output::SDRDevice
     virtual const char *device_name(void) const override;
 
     virtual double get_temperature(void) const override;
-    virtual uint32_t get_fifo_fill_count(void) const;
+    virtual float get_fifo_fill_percent(void) const;
 
   private:
     SDRDeviceConfig &m_conf;
@@ -92,7 +92,7 @@ class Lime : public Output::SDRDevice
     size_t m_interpolate = 1;
     std::vector<complexf> interpolatebuf;
 
-    std::atomic<uint32_t> m_last_fifo_filled_count = ATOMIC_VAR_INIT(0);
+    std::atomic<float> m_last_fifo_fill_percent = ATOMIC_VAR_INIT(0);
 
     size_t underflows = 0;
     size_t overflows = 0;
diff --git a/src/output/SDR.cpp b/src/output/SDR.cpp
index 31a5c79..95b54f9 100644
--- a/src/output/SDR.cpp
+++ b/src/output/SDR.cpp
@@ -86,7 +86,7 @@ SDR::SDR(SDRDeviceConfig& config, std::shared_ptr<SDRDevice> device) :
     RC_ADD_PARAMETER(gpsdo_holdover, "1 if the GPSDO is in holdover, 0 if it is using gnss");
 
     if (std::dynamic_pointer_cast<Lime>(device)) {
-        RC_ADD_PARAMETER(fifo_fill, "A value representing the Lime FIFO fullness");
+        RC_ADD_PARAMETER(fifo_fill, "A value representing the Lime FIFO fullness [percent]");
     }
 }
 
@@ -463,7 +463,7 @@ const string SDR::get_parameter(const string& parameter) const
         const auto dev = std::dynamic_pointer_cast<Lime>(m_device);
 
         if (dev) {
-            ss << dev->get_fifo_fill_count();
+            ss << dev->get_fifo_fill_percent();
         }
         else {
             ss << "Parameter '" << parameter <<
-- 
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