6 files changed, 595 insertions, 7 deletions
diff --git a/quantum/process_keycode/process_music.c b/quantum/process_keycode/process_music.c
index 2d52e47a72..ca68bef6c8 100644
--- a/quantum/process_keycode/process_music.c
+++ b/quantum/process_keycode/process_music.c
@@ -1,8 +1,8 @@
 #include "process_music.h"
 
 bool music_activated = false;
-uint8_t starting_note = 0x0C;
-int offset = 7;
+uint8_t music_starting_note = 0x0C;
+int music_offset = 7;
 
 // music sequencer
 static bool music_sequence_recording = false;
@@ -115,7 +115,16 @@ bool process_music(uint16_t keycode, keyrecord_t *record) {
         return false;
       }
 
-      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row));
+      #ifdef MUSIC_MODE_CHROMATIC
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(MATRIX_ROWS - record->event.key.row));
+      #elif defined(MUSIC_MODE_GUITAR)
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(float)(MATRIX_ROWS - record->event.key.row + 7)*5.0/12);
+      #elif defined(MUSIC_MODE_VIOLIN)
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + record->event.key.col + music_offset)/12.0+(float)(MATRIX_ROWS - record->event.key.row + 5)*7.0/12);
+      #else
+      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(music_starting_note + SCALE[record->event.key.col + music_offset])/12.0+(MATRIX_ROWS - record->event.key.row));
+      #endif
+
       if (record->event.pressed) {
         play_note(freq, 0xF);
         if (music_sequence_recording) {
diff --git a/quantum/process_keycode/process_printer.c b/quantum/process_keycode/process_printer.c
new file mode 100644
index 0000000000..2e11dd366c
--- /dev/null
+++ b/quantum/process_keycode/process_printer.c
@@ -0,0 +1,254 @@
+#include "process_printer.h"
+#include "action_util.h"
+
+bool printing_enabled = false;
+uint8_t character_shift = 0;
+
+void enabled_printing() {
+	printing_enabled = true;
+	serial_init();
+}
+
+void disable_printing() {
+	printing_enabled = false;
+}
+
+uint8_t shifted_numbers[10] = {0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29};
+
+// uint8_t keycode_to_ascii[0xFF][2];
+
+// keycode_to_ascii[KC_MINS] = {0x2D, 0x5F};
+
+void print_char(char c) {
+	USB_Disable();
+	serial_send(c);
+	USB_Init();
+}
+
+void print_box_string(uint8_t text[]) {
+	uint8_t len = strlen(text);
+	uint8_t out[len * 3 + 8];
+	out[0] = 0xDA;
+	for (uint8_t i = 0; i < len; i++) {
+		out[i+1] = 0xC4;
+	}
+	out[len + 1] = 0xBF;
+	out[len + 2] = '\n';
+
+	out[len + 3] = 0xB3;
+	for (uint8_t i = 0; i < len; i++) {
+		out[len + 4 + i] = text[i];
+	}
+	out[len * 2 + 4] = 0xB3;
+	out[len * 2 + 5] = '\n';
+
+
+	out[len * 2 + 6] = 0xC0;
+	for (uint8_t i = 0; i < len; i++) {
+		out[len * 2 + 7 + i] = 0xC4;
+	}
+	out[len * 3 + 7] = 0xD9;
+	out[len * 3 + 8] = '\n';
+
+	print_string(out); 
+}
+
+void print_string(char c[]) {
+	for(uint8_t i = 0; i < strlen(c); i++)
+		print_char(c[i]);
+}
+
+bool process_printer(uint16_t keycode, keyrecord_t *record) {
+	if (keycode == PRINT_ON) {
+		enabled_printing();
+		return false;
+	}
+	if (keycode == PRINT_OFF) {
+		disable_printing();
+		return false;
+	}
+
+	if (printing_enabled) {
+		switch(keycode) {
+			case KC_EXLM ... KC_RPRN:
+			case KC_UNDS:
+			case KC_PLUS:
+			case KC_LCBR:
+			case KC_RCBR:
+			case KC_PIPE:
+			case KC_TILD:
+				keycode &= 0xFF;
+			case KC_LSFT:
+			case KC_RSFT:
+				if (record->event.pressed) {
+					character_shift++;
+				} else {
+					character_shift--;
+				}
+				return false;
+			break;
+		}
+
+		switch(keycode) {
+			case KC_F1:
+				if (record->event.pressed) {
+					print_box_string("This is a line of text!");
+				}
+				return false;
+			case KC_ESC:
+				if (record->event.pressed) {
+					print_char(0x1B);
+				}
+				return false;
+			break;
+			case KC_SPC:
+				if (record->event.pressed) {
+					print_char(0x20);
+				}
+				return false;
+			break;
+			case KC_A ... KC_Z:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x41 + (keycode - KC_A));
+					} else {
+						print_char(0x61 + (keycode - KC_A));
+					}
+				}
+				return false;
+			break;
+			case KC_1 ... KC_0:
+				if (record->event.pressed) {
+					if (character_shift) {
+							print_char(shifted_numbers[keycode - KC_1]);
+					} else {
+							print_char(0x30 + ((keycode - KC_1 + 1) % 10));
+					}
+				}
+				return false;
+			break;
+			case KC_ENT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x0C);
+					} else {
+						print_char(0x0A);
+					}
+				}
+				return false;
+			break;
+			case KC_BSPC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x18);
+					} else {
+						print_char(0x1A);
+					}
+				}
+				return false;
+			break;
+			case KC_DOT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3E);
+					} else {
+						print_char(0x2E);
+					}
+				}
+				return false;
+			break;
+			case KC_COMM:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3C);
+					} else {
+						print_char(0x2C);
+					}
+				}
+				return false;
+			break;
+			case KC_SLSH:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3F);
+					} else {
+						print_char(0x2F);
+					}
+				}
+				return false;
+			break;
+			case KC_QUOT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x22);
+					} else {
+						print_char(0x27);
+					}
+				}
+				return false;
+			break;
+			case KC_GRV:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7E);
+					} else {
+						print_char(0x60);
+					}
+				}
+				return false;
+			break;
+			case KC_MINS:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x5F);
+					} else {
+						print_char(0x2D);
+					}
+				}
+				return false;
+			break;
+			case KC_EQL:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x2B);
+					} else {
+						print_char(0x3D);
+					}
+				}
+				return false;
+			break;
+			case KC_LBRC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7B);
+					} else {
+						print_char(0x5B);
+					}
+				}
+				return false;
+			break;
+			case KC_RBRC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7D);
+					} else {
+						print_char(0x5D);
+					}
+				}
+				return false;
+			break;
+			case KC_BSLS:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7C);
+					} else {
+						print_char(0x5C);
+					}
+				}
+				return false;
+			break;
+		}
+	}
+	return true;
+
+}
+\ No newline at end of file
diff --git a/quantum/process_keycode/process_printer.h b/quantum/process_keycode/process_printer.h
new file mode 100644
index 0000000000..fdd36d75a8
--- /dev/null
+++ b/quantum/process_keycode/process_printer.h
@@ -0,0 +1,8 @@
+#ifndef PROCESS_PRINTER_H
+#define PROCESS_PRINTER_H
+
+#include "quantum.h"
+
+#include "protocol/serial.h"
+
+#endif
+\ No newline at end of file
diff --git a/quantum/process_keycode/process_printer_bb.c b/quantum/process_keycode/process_printer_bb.c
new file mode 100644
index 0000000000..1924d03774
--- /dev/null
+++ b/quantum/process_keycode/process_printer_bb.c
@@ -0,0 +1,260 @@
+#include "process_printer.h"
+#include "action_util.h"
+
+bool printing_enabled = false;
+uint8_t character_shift = 0;
+
+#define SERIAL_PIN_DDR DDRD
+#define SERIAL_PIN_PORT PORTD
+#define SERIAL_PIN_MASK _BV(PD3)
+#define SERIAL_DELAY 52
+
+inline static
+void serial_delay(void) {
+  _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_high(void) {
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_low(void) {
+  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_output(void) {
+  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+
+void enabled_printing() {
+	printing_enabled = true;
+	serial_output();
+	serial_high();
+}
+
+void disable_printing() {
+	printing_enabled = false;
+}
+
+uint8_t shifted_numbers[10] = {0x21, 0x40, 0x23, 0x24, 0x25, 0x5E, 0x26, 0x2A, 0x28, 0x29};
+
+// uint8_t keycode_to_ascii[0xFF][2];
+
+// keycode_to_ascii[KC_MINS] = {0x2D, 0x5F};
+
+void print_char(char c) {
+  uint8_t b = 8;
+  serial_output();
+  while( b-- ) {
+    if(c & (1 << b)) {
+      serial_high();
+    } else {
+      serial_low();
+    }
+    serial_delay();
+  }
+}
+
+void print_string(char c[]) {
+	for(uint8_t i = 0; i < strlen(c); i++)
+		print_char(c[i]);
+}
+
+bool process_printer(uint16_t keycode, keyrecord_t *record) {
+	if (keycode == PRINT_ON) {
+		enabled_printing();
+		return false;
+	}
+	if (keycode == PRINT_OFF) {
+		disable_printing();
+		return false;
+	}
+
+	if (printing_enabled) {
+		switch(keycode) {
+			case KC_EXLM ... KC_RPRN:
+			case KC_UNDS:
+			case KC_PLUS:
+			case KC_LCBR:
+			case KC_RCBR:
+			case KC_PIPE:
+			case KC_TILD:
+				keycode &= 0xFF;
+			case KC_LSFT:
+			case KC_RSFT:
+				if (record->event.pressed) {
+					character_shift++;
+				} else {
+					character_shift--;
+				}
+				return false;
+			break;
+		}
+
+		switch(keycode) {
+			case KC_F1:
+				if (record->event.pressed) {
+					print_string("This is a line of text!\n\n\n");
+				}
+				return false;
+			case KC_ESC:
+				if (record->event.pressed) {
+					print_char(0x1B);
+				}
+				return false;
+			break;
+			case KC_SPC:
+				if (record->event.pressed) {
+					print_char(0x20);
+				}
+				return false;
+			break;
+			case KC_A ... KC_Z:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x41 + (keycode - KC_A));
+					} else {
+						print_char(0x61 + (keycode - KC_A));
+					}
+				}
+				return false;
+			break;
+			case KC_1 ... KC_0:
+				if (record->event.pressed) {
+					if (character_shift) {
+							print_char(shifted_numbers[keycode - KC_1]);
+					} else {
+							print_char(0x30 + ((keycode - KC_1 + 1) % 10));
+					}
+				}
+				return false;
+			break;
+			case KC_ENT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x0C);
+					} else {
+						print_char(0x0A);
+					}
+				}
+				return false;
+			break;
+			case KC_BSPC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x18);
+					} else {
+						print_char(0x1A);
+					}
+				}
+				return false;
+			break;
+			case KC_DOT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3E);
+					} else {
+						print_char(0x2E);
+					}
+				}
+				return false;
+			break;
+			case KC_COMM:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3C);
+					} else {
+						print_char(0x2C);
+					}
+				}
+				return false;
+			break;
+			case KC_SLSH:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x3F);
+					} else {
+						print_char(0x2F);
+					}
+				}
+				return false;
+			break;
+			case KC_QUOT:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x22);
+					} else {
+						print_char(0x27);
+					}
+				}
+				return false;
+			break;
+			case KC_GRV:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7E);
+					} else {
+						print_char(0x60);
+					}
+				}
+				return false;
+			break;
+			case KC_MINS:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x5F);
+					} else {
+						print_char(0x2D);
+					}
+				}
+				return false;
+			break;
+			case KC_EQL:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x2B);
+					} else {
+						print_char(0x3D);
+					}
+				}
+				return false;
+			break;
+			case KC_LBRC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7B);
+					} else {
+						print_char(0x5B);
+					}
+				}
+				return false;
+			break;
+			case KC_RBRC:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7D);
+					} else {
+						print_char(0x5D);
+					}
+				}
+				return false;
+			break;
+			case KC_BSLS:
+				if (record->event.pressed) {
+					if (character_shift) {
+						print_char(0x7C);
+					} else {
+						print_char(0x5C);
+					}
+				}
+				return false;
+			break;
+		}
+	}
+	return true;
+
+}
+\ No newline at end of file
diff --git a/quantum/process_keycode/process_unicode.c b/quantum/process_keycode/process_unicode.c
index 6a30afe293..cd3a610b4d 100644
--- a/quantum/process_keycode/process_unicode.c
+++ b/quantum/process_keycode/process_unicode.c
@@ -42,6 +42,11 @@ void unicode_input_start (void) {
     register_code(KC_PPLS);
     unregister_code(KC_PPLS);
     break;
+  case UC_WINC:
+    register_code(KC_RALT);
+    unregister_code(KC_RALT);
+    register_code(KC_U);
+    unregister_code(KC_U);
   }
   wait_ms(UNICODE_TYPE_DELAY);
 }
@@ -78,6 +83,52 @@ bool process_unicode(uint16_t keycode, keyrecord_t *record) {
   return true;
 }
 
+#ifdef UNICODEMAP_ENABLE
+__attribute__((weak))
+const uint32_t PROGMEM unicode_map[] = {
+};
+
+void register_hex32(uint32_t hex) {
+  uint8_t onzerostart = 1;
+  for(int i = 7; i >= 0; i--) {
+    if (i <= 3) {
+      onzerostart = 0;
+    }
+    uint8_t digit = ((hex >> (i*4)) & 0xF);
+    if (digit == 0) {
+      if (onzerostart == 0) {
+        register_code(hex_to_keycode(digit));
+        unregister_code(hex_to_keycode(digit));
+      }
+    } else {
+      register_code(hex_to_keycode(digit));
+      unregister_code(hex_to_keycode(digit));
+      onzerostart = 0;
+    }
+  }
+}
+
+__attribute__((weak))
+void unicode_map_input_error() {}
+
+bool process_unicode_map(uint16_t keycode, keyrecord_t *record) {
+  if ((keycode & QK_UNICODE_MAP) == QK_UNICODE_MAP && record->event.pressed) {
+    const uint32_t* map = unicode_map;
+    uint16_t index = keycode & 0x7FF;
+    uint32_t code = pgm_read_dword_far(&map[index]);
+    if ((code > 0xFFFF && input_mode == UC_OSX) || (code > 0xFFFFF && input_mode == UC_LNX)) {
+      // when character is out of range supported by the OS
+      unicode_map_input_error();
+    } else {
+      unicode_input_start();
+      register_hex32(code);
+      unicode_input_finish();
+    }
+  }
+  return true;
+}
+#endif
+
 #ifdef UCIS_ENABLE
 qk_ucis_state_t qk_ucis_state;
 
diff --git a/quantum/process_keycode/process_unicode.h b/quantum/process_keycode/process_unicode.h
index 27f8072ee6..f17cfa6cf2 100644
--- a/quantum/process_keycode/process_unicode.h
+++ b/quantum/process_keycode/process_unicode.h
@@ -3,10 +3,11 @@
 
 #include "quantum.h"
 
-#define UC_OSX 0
-#define UC_LNX 1
-#define UC_WIN 2
-#define UC_BSD 3
+#define UC_OSX 0  // Mac OS X
+#define UC_LNX 1  // Linux
+#define UC_WIN 2  // Windows 'HexNumpad'
+#define UC_BSD 3  // BSD (not implemented)
+#define UC_WINC 4 // WinCompose https://github.com/samhocevar/wincompose
 
 #ifndef UNICODE_TYPE_DELAY
 #define UNICODE_TYPE_DELAY 10
@@ -20,6 +21,11 @@ void register_hex(uint16_t hex);
 
 bool process_unicode(uint16_t keycode, keyrecord_t *record);
 
+#ifdef UNICODEMAP_ENABLE
+void unicode_map_input_error(void);
+bool process_unicode_map(uint16_t keycode, keyrecord_t *record);
+#endif
+
 #ifdef UCIS_ENABLE
 #ifndef UCIS_MAX_SYMBOL_LENGTH
 #define UCIS_MAX_SYMBOL_LENGTH 32