From 40658cdf9069e217fab106d13f6f6df6244de2e9 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Fri, 4 Mar 2022 18:57:57 +0100
Subject: Implement permanent tone

---
 sw/picardy/src/main.rs  | 40 +++++++++++++++++++++++-----------------
 sw/picardy/src/state.rs | 31 ++++++++++++++++++++++---------
 sw/picardy/src/ui.rs    |  8 +++++++-
 3 files changed, 52 insertions(+), 27 deletions(-)

diff --git a/sw/picardy/src/main.rs b/sw/picardy/src/main.rs
index b6bf098..2e7d9a1 100644
--- a/sw/picardy/src/main.rs
+++ b/sw/picardy/src/main.rs
@@ -365,25 +365,31 @@ fn TIM2() {
     let cw_paddle_tip_low = shared.cw_paddle_tip.is_low().unwrap();
     let cw_paddle_ring_low = shared.cw_paddle_ring.is_low().unwrap();
 
+    if cw_paddle_tip_low || cw_paddle_ring_low {
+        shared.state.send_tone = false;
+    }
+
     let cw_ptt_delay : u32 = TICKS_PER_SECOND * 800 / 1000;
-    let cw_ptt = match shared.state.mode {
-        Mode::CW(_) => {
-            if cw_paddle_tip_low || cw_paddle_ring_low {
-                shared.cw_ptt_timestamp = *ticks;
-                true
-            }
-            else {
-                shared.cw_ptt_timestamp + cw_ptt_delay > *ticks
-            }
-        },
-        _ => false,
-    };
+    let cw_ptt = shared.state.send_tone ||
+        match shared.state.mode {
+            Mode::CW(_) => {
+                if cw_paddle_tip_low || cw_paddle_ring_low {
+                    shared.cw_ptt_timestamp = *ticks;
+                    true
+                }
+                else {
+                    shared.cw_ptt_timestamp + cw_ptt_delay > *ticks
+                }
+            },
+            _ => false,
+        };
 
-    let cw_beep = match shared.state.mode {
-        Mode::CW(CWMode::StraightKey) => cw_paddle_tip_low,
-        Mode::CW(CWMode::Iambic) => shared.cw_keyer.tick(*ticks, cw_paddle_tip_low, cw_paddle_ring_low),
-        _ => false,
-    };
+    let cw_beep = shared.state.send_tone ||
+        match shared.state.mode {
+            Mode::CW(CWMode::StraightKey) => cw_paddle_tip_low,
+            Mode::CW(CWMode::Iambic) => shared.cw_keyer.tick(*ticks, cw_paddle_tip_low, cw_paddle_ring_low),
+            _ => false,
+        };
 
     let next_state = match shared.state.sequence_state {
         SequenceState::Rx => {
diff --git a/sw/picardy/src/state.rs b/sw/picardy/src/state.rs
index 4e6af33..08826e7 100644
--- a/sw/picardy/src/state.rs
+++ b/sw/picardy/src/state.rs
@@ -64,6 +64,7 @@ pub struct State {
     pub vfo_sel : VFOSelection,
     pub rit : i32,
     pub mode : Mode,
+    pub send_tone : bool,
     pub sequence_state : SequenceState,
     pub update_disp_counter : u8,
     pub cw_wpm : u32,
@@ -79,6 +80,7 @@ impl State {
             vfo_sel : VFOSelection::A,
             rit : 0,
             mode : Mode::USB,
+            send_tone : false,
             sequence_state : SequenceState::Rx,
             update_disp_counter : 0,
             cw_wpm : 14,
@@ -86,14 +88,19 @@ impl State {
     }
 
     pub fn bfo(&self) -> u32 {
-        match self.mode {
-            Mode::LSB => BFO_LSB,
-            Mode::USB => BFO_USB,
-            Mode::CustomShift(fs) => fs,
-            Mode::CW(_) => match self.sequence_state {
-                SequenceState::SwitchingCW | SequenceState::TxCW => 0,
-                _ => BFO_CW,
-            },
+        if self.send_tone {
+            0
+        }
+        else {
+            match self.mode {
+                Mode::LSB => BFO_LSB,
+                Mode::USB => BFO_USB,
+                Mode::CustomShift(fs) => fs,
+                Mode::CW(_) => match self.sequence_state {
+                    SequenceState::SwitchingCW | SequenceState::TxCW => 0,
+                    _ => BFO_CW,
+                },
+            }
         }
     }
 
@@ -109,8 +116,14 @@ impl State {
     }
 
     pub fn vfo(&self) -> u32 {
+        let cw_offset = match self.sequence_state {
+            SequenceState::SwitchingCW | SequenceState::TxCW => 500,
+            _ => 0,
+        };
+
         let vfo = (self.if_qrg() - self.bfo()) as i32 +
-            if self.sequence_state.apply_rit() { self.rit } else { 0 };
+            if self.sequence_state.apply_rit() { self.rit } else { 0 } +
+                cw_offset;
         vfo as u32
     }
 }
diff --git a/sw/picardy/src/ui.rs b/sw/picardy/src/ui.rs
index 728e6e7..ad85a3e 100644
--- a/sw/picardy/src/ui.rs
+++ b/sw/picardy/src/ui.rs
@@ -239,9 +239,11 @@ impl UI {
                 state.ui_sel = UISelection::VFO;
 
                 if button_updates.a {
+                    state.send_tone = true;
                 }
 
                 if button_updates.b {
+                    state.send_tone = false;
                 }
 
                 if button_updates.c {
@@ -257,6 +259,10 @@ impl UI {
             },
         }
 
+        if result.ptt {
+            state.send_tone = false;
+        }
+
         result
     }
 
@@ -363,7 +369,7 @@ pub fn update_disp<T: hd44780_driver::bus::DataBus>(lcd: &mut HD44780<T>, state:
             write!(string, "{} 1/2", mode).unwrap();
         },
         MenuPage::Two => {
-            write!(string, "---- --- --- 2/2").unwrap();
+            write!(string, "TUT STOP --- 2/2").unwrap();
         },
     }
 
-- 
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