Selecting the melody to play when alarm goes off

libraries/Melody/Melody.cpp

@@ -137,7 +137,7 @@ void Melody::setLoopDuration(unsigned long ms)
 /**
  * \brief Starts playing the melody, or restarts it if already playing.
  *
- * \sa setMelody(), stop(), loopCount()
+ * \sa playOnce(), setMelody(), stop(), loopCount()
  */
 void Melody::play()
 {
@@ -150,6 +150,22 @@ void Melody::play()
     nextNote();
 }
 
+/**
+ * \brief Plays the melody once and then stops.
+ *
+ * \sa play(), stop()
+ */
+void Melody::playOnce()
+{
+    stop();
+    if (size == 0)
+        return;         // No melody to play.
+    loopsLeft = 1;
+    posn = 0;
+    playing = true;
+    nextNote();
+}
+
 /**
  * \brief Stops playing the melody.
  *

libraries/Melody/Melody.h

@@ -131,6 +131,7 @@ public:
     void setLoopDuration(unsigned long ms);
 
     void play();
+    void playOnce();
     void stop();
 
     void setMelody(const int *notes, const uint8_t *lengths, unsigned int size);

libraries/RTC/examples/AlarmClock/AlarmClock.pde

@@ -35,6 +35,7 @@
 #include "SetAlarm.h"
 #include "SetTime.h"
 #include "SetDate.h"
+#include "SetMelody.h"
 #include "LowPowerMelody.h"
 
 // I/O pins that are used by this sketch.
@@ -51,6 +52,7 @@
 #define SETTING_24HOUR          0   // 0: 12 hour, 1: 24 hour
 #define SETTING_ALARM_TIMEOUT   1   // Timeout in minutes for the alarm
 #define SETTING_SNOOZE          2   // 0: no snooze, 1: snooze
+#define SETTING_MELODY          3   // Melody to play for the alarm
 
 // Initialize the LCD
 FreetronicsLCD lcd;
@@ -60,8 +62,8 @@ SoftI2C bus(RTC_DATA, RTC_CLOCK);
 DS1307RTC rtc(bus, RTC_ONE_HZ);
 
 // Melody to play when the alarm sounds.
-int alarmNotes[] = {NOTE_C6, NOTE_C6, NOTE_C6, NOTE_C6, NOTE_REST};
+int defaultMelodyNotes[5] = {NOTE_C6, NOTE_C6, NOTE_C6, NOTE_C6, NOTE_REST};
-byte alarmLengths[] = {8, 8, 8, 8, 2};
+byte defaultMelodyLengths[5] = {8, 8, 8, 8, 2};
 LowPowerMelody alarmMelody(BUZZER);
 
 uint8_t prevHour = 24;
@@ -77,6 +79,7 @@ SetAlarm alarm3(mainForm, "Alarm 3", 2);
 SetAlarm alarm4(mainForm, "Alarm 4", 3);
 IntField alarmTimeout(mainForm, "Alarm timeout", 2, 10, 1, 2, " minutes");
 BoolField snooze(mainForm, "Snooze alarm", "On", "Off", false);
+SetMelody alarmSound(mainForm, "Alarm sound");
 SetTime setTime(mainForm, "Set current time");
 SetDate setDate(mainForm, "Set current date");
 BoolField hourMode(mainForm, "Hour display", "24 hour clock", "12 hour clock", false);
@@ -105,7 +108,7 @@ void setup() {
     lcd.enableScreenSaver(3);
 
     // Initialize the alarm melody.
-    alarmMelody.setMelody(alarmNotes, alarmLengths, sizeof(alarmLengths));
+    alarmMelody.setMelody(defaultMelodyNotes, defaultMelodyLengths, sizeof(defaultMelodyLengths));
     alarmMelody.stop();     // Force Timer2 to be disabled.
 
     // Read the clock settings from the realtime clock's NVRAM.
@@ -115,6 +118,8 @@ void setup() {
     alarmTimeout.setValue(rtc.readByte(SETTING_ALARM_TIMEOUT));
     alarmMelody.setLoopDuration(60000UL * alarmTimeout.value());
     snooze.setValue(rtc.readByte(SETTING_SNOOZE) != 0);
+    alarmSound.setValue(rtc.readByte(SETTING_MELODY));
+    alarmSound.updateMelody();
 
     // Set the initial time and date and find the next alarm to be triggered.
     RTCTime time;
@@ -176,6 +181,8 @@ void loop() {
             alarmMelody.setLoopDuration(60000UL * alarmTimeout.value());
         } else if (snooze.isCurrent()) {
             rtc.writeByte(SETTING_SNOOZE, (byte)snooze.value());
+        } else if (alarmSound.isCurrent()) {
+            rtc.writeByte(SETTING_MELODY, (byte)alarmSound.value());
         }
         prevHour = 24;      // Force an update of the main screen.
         findNextAlarm();    // Update the time of the next alarm event.

libraries/RTC/examples/AlarmClock/LowPowerMelody.cpp

@@ -34,6 +34,15 @@ void LowPowerMelody::play()
     Melody::play();
 }
 
+void LowPowerMelody::playOnce()
+{
+    // Turn on Timer2.
+    power_timer2_enable();
+
+    // Start the melody playing.
+    Melody::playOnce();
+}
+
 void LowPowerMelody::stop()
 {
     // Stop the melody playing.

libraries/RTC/examples/AlarmClock/LowPowerMelody.h

@@ -30,6 +30,7 @@ public:
     LowPowerMelody(uint8_t pin) : Melody(pin) {}
 
     void play();
+    void playOnce();
     void stop();
 };
 

libraries/RTC/examples/AlarmClock/SetMelody.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2012 Southern Storm Software, Pty Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "SetMelody.h"
+#include "LowPowerMelody.h"
+#include <WProgram.h>
+
+extern LowPowerMelody alarmMelody;
+extern int defaultMelodyNotes[5];
+extern byte defaultMelodyLengths[5];
+
+static int haircutNotes[] = {
+    NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3,
+    NOTE_REST, NOTE_B3, NOTE_C4, NOTE_REST
+};
+static byte haircutLengths[] = {4, 8, 8, 4, 4, 4, 4, 4, 2};
+
+static int sosNotes[] = {
+    NOTE_C6, NOTE_C6, NOTE_C6, NOTE_REST,
+    NOTE_C6, NOTE_C6, NOTE_C6, NOTE_REST,
+    NOTE_C6, NOTE_C6, NOTE_C6, NOTE_REST
+};
+static byte sosLengths[] = {8, 8, 8, 8, 4, 4, 4, 8, 8, 8, 8, 2};
+
+static const char item_FourBeeps[] PROGMEM = "Four beeps";
+static const char item_Haircut[] PROGMEM = "Shave 'n haircut";
+static const char item_SOS[] PROGMEM = "S.O.S.";
+static ListItem melodyNames[] PROGMEM = {
+    item_FourBeeps,
+    item_Haircut,
+    item_SOS,
+    0
+};
+
+SetMelody::SetMelody(Form &form, const String &label)
+    : ListField(form, label, melodyNames)
+    , needsPlay(false)
+{
+}
+
+int SetMelody::dispatch(int event)
+{
+    int result = ListField::dispatch(event);
+    if (result == FORM_CHANGED) {
+        updateMelody();
+        needsPlay = true;   // Play when we see the button release event.
+    } else if (needsPlay && event < 0) {
+        needsPlay = false;
+        alarmMelody.playOnce();
+    }
+    return result;
+}
+
+void SetMelody::updateMelody()
+{
+    switch (value()) {
+    case 0: default:
+        alarmMelody.setMelody(defaultMelodyNotes, defaultMelodyLengths, sizeof(defaultMelodyLengths));
+        break;
+    case 1:
+        alarmMelody.setMelody(haircutNotes, haircutLengths, sizeof(haircutLengths));
+        break;
+    case 2:
+        alarmMelody.setMelody(sosNotes, sosLengths, sizeof(sosLengths));
+        break;
+    }
+}

libraries/RTC/examples/AlarmClock/SetMelody.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2012 Southern Storm Software, Pty Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SetMelody_h
+#define SetMelody_h
+
+#include <ListField.h>
+
+class SetMelody : public ListField {
+public:
+    SetMelody(Form &form, const String &label);
+
+    int dispatch(int event);
+
+    void updateMelody();
+
+private:
+    bool needsPlay;
+};
+
+#endif