From 128f106bb1b22adabe86e5f797344f3e04cdb524 Mon Sep 17 00:00:00 2001
From: Kai Ryu <kai1103@gmail.com>
Date: Mon, 29 Sep 2014 15:11:10 +0900
Subject: [PATCH] Implement buzzer supporting for TentaPad

---
 keyboard/tentapad/Makefile      |  3 +-
 keyboard/tentapad/Makefile_gh60 |  3 +-
 keyboard/tentapad/buzzer.c      | 67 +++++++++++++++++++++++
 keyboard/tentapad/buzzer.h      | 26 +++++++++
 keyboard/tentapad/matrix.c      |  2 +
 keyboard/tentapad/pitches.h     | 94 +++++++++++++++++++++++++++++++++
 keyboard/tentapad/tentapad.c    | 33 ++++++++++--
 7 files changed, 223 insertions(+), 5 deletions(-)
 create mode 100644 keyboard/tentapad/buzzer.c
 create mode 100644 keyboard/tentapad/buzzer.h
 create mode 100644 keyboard/tentapad/pitches.h

diff --git a/keyboard/tentapad/Makefile b/keyboard/tentapad/Makefile
index 21c6b5ba..b03b87d7 100644
--- a/keyboard/tentapad/Makefile
+++ b/keyboard/tentapad/Makefile
@@ -54,7 +54,8 @@ SRC =	keymap_common.c \
 	led.c \
 	backlight.c \
 	ledmap.c \
-	vibration.c
+	vibration.c \
+	buzzer.c
 
 ifdef KEYMAP
     SRC := keymap_$(KEYMAP).c $(SRC)
diff --git a/keyboard/tentapad/Makefile_gh60 b/keyboard/tentapad/Makefile_gh60
index b746f685..0fd4f25b 100644
--- a/keyboard/tentapad/Makefile_gh60
+++ b/keyboard/tentapad/Makefile_gh60
@@ -54,7 +54,8 @@ SRC =	keymap_common.c \
 	led.c \
 	backlight.c \
 	ledmap.c \
-	vibration.c
+	vibration.c \
+	buzzer.c
 
 ifdef KEYMAP
     SRC := keymap_$(KEYMAP).c $(SRC)
diff --git a/keyboard/tentapad/buzzer.c b/keyboard/tentapad/buzzer.c
new file mode 100644
index 00000000..aa9560ac
--- /dev/null
+++ b/keyboard/tentapad/buzzer.c
@@ -0,0 +1,67 @@
+/*
+Copyright 2014 Kai Ryu <kai1103@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <avr/io.h>
+#include <util/delay.h>
+#include "buzzer.h"
+#include "debug.h"
+
+void buzzer_init(void)
+{
+    DDRD  |=  (1<<PD1);
+    PORTD &= ~(1<<PD1);
+}
+
+inline
+void buzzer_on(void)
+{
+#ifndef EXPERIMENTAL
+    PORTD |=  (1<<PD1);
+#else
+    PORTD |=  (1<<PD5);
+#endif
+}
+
+inline
+void buzzer_off(void)
+{
+#ifndef EXPERIMENTAL
+    PORTD &= ~(1<<PD1);
+#else
+    PORTD &= ~(1<<PD5);
+#endif
+}
+
+void buzzer(uint16_t frequency, uint16_t duration) 
+{
+    uint16_t delay = 100000L / (2 * frequency);
+    uint16_t period = (uint32_t)frequency * duration / 1000L;
+    uint16_t i;
+    //dprintf("delay: %d\nperiod: %d\n", delay, period);
+    do {
+        buzzer_on();
+        i = delay;
+        do {
+            _delay_us(10);
+        } while (--i);
+        buzzer_off();
+        i = delay;
+        do {
+            _delay_us(10);
+        } while (--i);
+    } while(--period);
+}
diff --git a/keyboard/tentapad/buzzer.h b/keyboard/tentapad/buzzer.h
new file mode 100644
index 00000000..ec27b70a
--- /dev/null
+++ b/keyboard/tentapad/buzzer.h
@@ -0,0 +1,26 @@
+/*
+Copyright 2014 Kai Ryu <kai1103@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef BUZZER_H
+#define BUZZER_H
+
+#include <stdint.h>
+
+void buzzer_init(void);
+void buzzer(uint16_t frequency, uint16_t duration);
+
+#endif
diff --git a/keyboard/tentapad/matrix.c b/keyboard/tentapad/matrix.c
index cf105923..2b8dabfd 100644
--- a/keyboard/tentapad/matrix.c
+++ b/keyboard/tentapad/matrix.c
@@ -31,6 +31,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "ps2.h"
 #endif
 #include "vibration.h"
+#include "buzzer.h"
 #include "keymap_common.h"
 
 
@@ -82,6 +83,7 @@ void matrix_init(void)
     keymaps_cache_init();
 
     vibration_init();
+    buzzer_init();
 
     // initialize cols
     init_cols();
diff --git a/keyboard/tentapad/pitches.h b/keyboard/tentapad/pitches.h
new file mode 100644
index 00000000..5239e656
--- /dev/null
+++ b/keyboard/tentapad/pitches.h
@@ -0,0 +1,94 @@
+#ifndef PITCHES_H
+#define PITCHES_H
+
+#define NOTE_B0  31
+#define NOTE_C1  33
+#define NOTE_CS1 35
+#define NOTE_D1  37
+#define NOTE_DS1 39
+#define NOTE_E1  41
+#define NOTE_F1  44
+#define NOTE_FS1 46
+#define NOTE_G1  49
+#define NOTE_GS1 52
+#define NOTE_A1  55
+#define NOTE_AS1 58
+#define NOTE_B1  62
+#define NOTE_C2  65
+#define NOTE_CS2 69
+#define NOTE_D2  73
+#define NOTE_DS2 78
+#define NOTE_E2  82
+#define NOTE_F2  87
+#define NOTE_FS2 93
+#define NOTE_G2  98
+#define NOTE_GS2 104
+#define NOTE_A2  110
+#define NOTE_AS2 117
+#define NOTE_B2  123
+#define NOTE_C3  131
+#define NOTE_CS3 139
+#define NOTE_D3  147
+#define NOTE_DS3 156
+#define NOTE_E3  165
+#define NOTE_F3  175
+#define NOTE_FS3 185
+#define NOTE_G3  196
+#define NOTE_GS3 208
+#define NOTE_A3  220
+#define NOTE_AS3 233
+#define NOTE_B3  247
+#define NOTE_C4  262
+#define NOTE_CS4 277
+#define NOTE_D4  294
+#define NOTE_DS4 311
+#define NOTE_E4  330
+#define NOTE_F4  349
+#define NOTE_FS4 370
+#define NOTE_G4  392
+#define NOTE_GS4 415
+#define NOTE_A4  440
+#define NOTE_AS4 466
+#define NOTE_B4  494
+#define NOTE_C5  523
+#define NOTE_CS5 554
+#define NOTE_D5  587
+#define NOTE_DS5 622
+#define NOTE_E5  659
+#define NOTE_F5  698
+#define NOTE_FS5 740
+#define NOTE_G5  784
+#define NOTE_GS5 831
+#define NOTE_A5  880
+#define NOTE_AS5 932
+#define NOTE_B5  988
+#define NOTE_C6  1047
+#define NOTE_CS6 1109
+#define NOTE_D6  1175
+#define NOTE_DS6 1245
+#define NOTE_E6  1319
+#define NOTE_F6  1397
+#define NOTE_FS6 1480
+#define NOTE_G6  1568
+#define NOTE_GS6 1661
+#define NOTE_A6  1760
+#define NOTE_AS6 1865
+#define NOTE_B6  1976
+#define NOTE_C7  2093
+#define NOTE_CS7 2217
+#define NOTE_D7  2349
+#define NOTE_DS7 2489
+#define NOTE_E7  2637
+#define NOTE_F7  2794
+#define NOTE_FS7 2960
+#define NOTE_G7  3136
+#define NOTE_GS7 3322
+#define NOTE_A7  3520
+#define NOTE_AS7 3729
+#define NOTE_B7  3951
+#define NOTE_C8  4186
+#define NOTE_CS8 4435
+#define NOTE_D8  4699
+#define NOTE_DS8 4978
+
+#endif
diff --git a/keyboard/tentapad/tentapad.c b/keyboard/tentapad/tentapad.c
index ce671615..7b852665 100644
--- a/keyboard/tentapad/tentapad.c
+++ b/keyboard/tentapad/tentapad.c
@@ -16,6 +16,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include <stdint.h>
+#include <util/delay.h>
 #include "action.h"
 #include "action_layer.h"
 #include "backlight.h"
@@ -23,9 +24,17 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "eeconfig.h"
 #include "keymap_common.h"
 #include "vibration.h"
+#include "pitches.h"
+#include "buzzer.h"
 #include "tentapad.h"
 #include "debug.h"
 
+static const uint16_t tones[] PROGMEM = {
+    NOTE_C5, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_G5, NOTE_A5, NOTE_B5,
+    NOTE_C6, NOTE_D6, NOTE_E6, NOTE_F6, NOTE_G6, NOTE_A6, NOTE_B6,
+    NOTE_C7
+};
+
 uint8_t config_mode = 0;
 static uint8_t layer = 0;
 static uint8_t backlight = 0;
@@ -113,6 +122,11 @@ void enter_config_mode(void)
     backlight = backlight_mode;
     backlight_level(8);
     layer_on(CONFIG_LAYER);
+    softpwm_led_set(0, 32 * (layer + 1));
+    softpwm_led_set(1, 32 * (backlight + 1));
+    buzzer(pgm_read_word(&tones[0]), 50);
+    buzzer(pgm_read_word(&tones[4]), 50);
+    buzzer(pgm_read_word(&tones[7]), 50);
 }
 
 void exit_config_mode(void)
@@ -124,6 +138,9 @@ void exit_config_mode(void)
         default_layer_set(1UL<<layer);
         eeconfig_write_default_layer(1UL<<layer);
     }
+    buzzer(pgm_read_word(&tones[7]), 50);
+    buzzer(pgm_read_word(&tones[4]), 50);
+    buzzer(pgm_read_word(&tones[0]), 50);
 }
 
 void switch_layout(void)
@@ -135,9 +152,14 @@ void switch_layout(void)
     else {
         layer = (layer + 1) % (last_layer() + 1);
     }
-    xprintf("layer: %d\n", layer);
-    xprintf("last layer: %d\n", last_layer());
+    dprintf("layer: %d\n", layer);
+    dprintf("last layer: %d\n", last_layer());
     softpwm_led_set(0, 32 * (layer + 1));
+    buzzer(pgm_read_word(&tones[layer]), 50);
+    if (layer == 0) {
+        _delay_ms(10);
+        buzzer(pgm_read_word(&tones[layer]), 50);
+    }
 }
 
 void switch_backlight(void)
@@ -149,6 +171,11 @@ void switch_backlight(void)
     else {
         backlight = (backlight + 1) % (BACKLIGHT_LEVELS);
     }
-    xprintf("backlight: %d\n", backlight);
+    dprintf("backlight: %d\n", backlight);
     softpwm_led_set(1, 32 * (backlight + 1));
+    buzzer(pgm_read_word(&tones[7 + backlight]), 50);
+    if (backlight == 0) {
+        _delay_ms(10);
+        buzzer(pgm_read_word(&tones[7 + backlight]), 50);
+    }
 }