From: Ramakrishnan Muthukrishnan <ram@leastauthority.com>
Date: Tue, 7 Jun 2022 18:05:43 +0000 (+0530)
Subject: HL2/Radioberry gain slider settings
X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/file/$top_link?a=commitdiff_plain;h=766e451b864e8d58b29662bdd64214142ab048a0;p=pihpsdr.git

HL2/Radioberry gain slider settings
---

diff --git a/radio.c b/radio.c
index c38b584..86c9a74 100644
--- a/radio.c
+++ b/radio.c
@@ -1140,11 +1140,22 @@ void start_radio() {
   adc[0].dither = FALSE;
   adc[0].random = FALSE;
   adc[0].preamp = FALSE;
-  if (have_rx_gain) {
-    adc[0].attenuation = 14;
-  } else {
-    adc[0].attenuation = 0;
+
+  //
+  // Some HPSDR radios have RX GAIN instead of attenuation
+  // these usually have a gain range from -12 to +48
+  //
+  if(have_rx_gain && (protocol==ORIGINAL_PROTOCOL || protocol==NEW_PROTOCOL)) {
+    adc[0].min_gain=-12.0;
+    adc[0].max_gain=+48.0;
   }
+
+  /* if (have_rx_gain) { */
+  /*   adc[0].attenuation = 14; */
+  /* } else { */
+  /*   adc[0].attenuation = 0; */
+  /* } */
+
 #ifdef SOAPYSDR
   adc[0].antenna = 0;
   if (device == SOAPYSDR_USB_DEVICE) {
diff --git a/sliders.c b/sliders.c
index c117af3..694a061 100644
--- a/sliders.c
+++ b/sliders.c
@@ -429,7 +429,7 @@ void set_rf_gain(int rx,double value) {
       sprintf(title,"RF Gain RX %d",rx);
       scale_dialog=gtk_dialog_new_with_buttons(title,GTK_WINDOW(top_window),GTK_DIALOG_DESTROY_WITH_PARENT,NULL,NULL);
       GtkWidget *content=gtk_dialog_get_content_area(GTK_DIALOG(scale_dialog));
-      rf_gain_scale=gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL,0.0, 100.0, 1.00);
+      rf_gain_scale=gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL,-12.0, 48.0, 1.00);
       gtk_widget_set_size_request (rf_gain_scale, 400, 30);
       //gtk_range_set_value (GTK_RANGE(rf_gain_scale),receiver[rx]->rf_gain);
       gtk_range_set_value (GTK_RANGE(rf_gain_scale),adc[receiver[rx]->id].gain);