From 01fc446e66a237b8100fbf17415fc1ac3ae1df7d Mon Sep 17 00:00:00 2001
From: c vw <dl1ycf@darc.de>
Date: Fri, 10 Jul 2020 14:28:27 +0200
Subject: [PATCH] Manually merged from John: support for the switchable preamp
 of first-generation HPSDR boards

---
 old_protocol.c | 14 ++++++++++----
 rx_menu.c      | 11 +++++++++++
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/old_protocol.c b/old_protocol.c
index b13bc47..14dabfc 100644
--- a/old_protocol.c
+++ b/old_protocol.c
@@ -1422,10 +1422,16 @@ static int last_power=0;
       case 4:
         output_buffer[C0]=0x14;
         output_buffer[C1]=0x00;
-        // All current boards have NO switchable preamps
-        //for(i=0;i<receivers;i++) {
-        //  output_buffer[C1]|=(receiver[i]->preamp<<i);
-        //}
+
+#ifdef USBOZY
+        if ((device == DEVICE_OZY) || (device == DEVICE_METIS)) {
+#else
+        if (device == DEVICE_METIS) {
+#endif
+          for(i=0;i<receivers;i++) {
+            output_buffer[C1]|=(receiver[i]->preamp<<i);
+          }
+        }
         if(mic_ptt_enabled==0) {
           output_buffer[C1]|=0x40;
         }
diff --git a/rx_menu.c b/rx_menu.c
index 4390f37..c56a5e4 100644
--- a/rx_menu.c
+++ b/rx_menu.c
@@ -310,6 +310,17 @@ void rx_menu(GtkWidget *parent) {
       gtk_grid_attach(GTK_GRID(grid),random_b,x,3,1,1);
       g_signal_connect(random_b,"toggled",G_CALLBACK(random_cb),NULL);
 
+      if((protocol==ORIGINAL_PROTOCOL && device == DEVICE_METIS) ||
+#ifdef USBOZY
+         (protocol==ORIGINAL_PROTOCOL && device == DEVICE_OZY) ||
+#endif
+        (protocol==NEW_PROTOCOL && device == NEW_DEVICE_ATLAS)) {
+        GtkWidget *preamp_b=gtk_check_button_new_with_label("Preamp");
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (preamp_b), active_receiver->preamp);
+        gtk_grid_attach(GTK_GRID(grid),preamp_b,x,4,1,1);
+        g_signal_connect(preamp_b,"toggled",G_CALLBACK(preamp_cb),NULL);
+      }
+
       if (filter_board == ALEX && active_receiver->adc == 0
           && ((protocol==ORIGINAL_PROTOCOL && device != DEVICE_ORION2) || (protocol==NEW_PROTOCOL && device != NEW_DEVICE_ORION2))) {
   
-- 
2.45.2