X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=quantum%2Frgblight.c;h=78072a61dedc593dbf3cdbe8c1b30653ec07f342;hb=e899cb8940da04fa2610604f0aab417db7fac119;hp=8c9ad773645f827da1740d791dcd9dd997084be2;hpb=65645fb8cad05307b9faf9a897eefd5ae8c46dad;p=qmk_firmware.git

diff --git a/quantum/rgblight.c b/quantum/rgblight.c
index 8c9ad7736..78072a61d 100644
--- a/quantum/rgblight.c
+++ b/quantum/rgblight.c
@@ -1,3 +1,19 @@
+/* Copyright 2016-2017 Yang Liu
+ *
+ * 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 <math.h>
 #include <avr/eeprom.h>
 #include <avr/interrupt.h>
 #include <util/delay.h>
@@ -5,99 +21,80 @@
 #include "timer.h"
 #include "rgblight.h"
 #include "debug.h"
+#include "led_tables.h"
 
-const uint8_t DIM_CURVE[] PROGMEM = {
-	0, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4,
-	4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6,
-	6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
-	8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11,
-	11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15,
-	15, 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 20,
-	20, 20, 21, 21, 22, 22, 22, 23, 23, 24, 24, 25, 25, 25, 26, 26,
-	27, 27, 28, 28, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 35, 35,
-	36, 36, 37, 38, 38, 39, 40, 40, 41, 42, 43, 43, 44, 45, 46, 47,
-	48, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
-	63, 64, 65, 66, 68, 69, 70, 71, 73, 74, 75, 76, 78, 79, 81, 82,
-	83, 85, 86, 88, 90, 91, 93, 94, 96, 98, 99, 101, 103, 105, 107, 109,
-	110, 112, 114, 116, 118, 121, 123, 125, 127, 129, 132, 134, 136, 139, 141, 144,
-	146, 149, 151, 154, 157, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 190,
-	193, 196, 200, 203, 207, 211, 214, 218, 222, 226, 230, 234, 238, 242, 248, 255,
-};
-const uint8_t RGBLED_BREATHING_TABLE[] PROGMEM = {0,0,0,0,1,1,1,2,2,3,4,5,5,6,7,9,10,11,12,14,15,17,18,20,21,23,25,27,29,31,33,35,37,40,42,44,47,49,52,54,57,59,62,65,67,70,73,76,79,82,85,88,90,93,97,100,103,106,109,112,115,118,121,124,127,131,134,137,140,143,146,149,152,155,158,162,165,167,170,173,176,179,182,185,188,190,193,196,198,201,203,206,208,211,213,215,218,220,222,224,226,228,230,232,234,235,237,238,240,241,243,244,245,246,248,249,250,250,251,252,253,253,254,254,254,255,255,255,255,255,255,255,254,254,254,253,253,252,251,250,250,249,248,246,245,244,243,241,240,238,237,235,234,232,230,228,226,224,222,220,218,215,213,211,208,206,203,201,198,196,193,190,188,185,182,179,176,173,170,167,165,162,158,155,152,149,146,143,140,137,134,131,128,124,121,118,115,112,109,106,103,100,97,93,90,88,85,82,79,76,73,70,67,65,62,59,57,54,52,49,47,44,42,40,37,35,33,31,29,27,25,23,21,20,18,17,15,14,12,11,10,9,7,6,5,5,4,3,2,2,1,1,1,0,0,0};
+__attribute__ ((weak))
 const uint8_t RGBLED_BREATHING_INTERVALS[] PROGMEM = {30, 20, 10, 5};
+__attribute__ ((weak))
 const uint8_t RGBLED_RAINBOW_MOOD_INTERVALS[] PROGMEM = {120, 60, 30};
+__attribute__ ((weak))
 const uint8_t RGBLED_RAINBOW_SWIRL_INTERVALS[] PROGMEM = {100, 50, 20};
+__attribute__ ((weak))
 const uint8_t RGBLED_SNAKE_INTERVALS[] PROGMEM = {100, 50, 20};
-const uint8_t RGBLED_KNIGHT_INTERVALS[] PROGMEM = {100, 50, 20};
+__attribute__ ((weak))
+const uint8_t RGBLED_KNIGHT_INTERVALS[] PROGMEM = {127, 63, 31};
+__attribute__ ((weak))
+const uint16_t RGBLED_GRADIENT_RANGES[] PROGMEM = {360, 240, 180, 120, 90};
 
 rgblight_config_t rgblight_config;
 rgblight_config_t inmem_config;
-struct cRGB led[RGBLED_NUM];
+
+LED_TYPE led[RGBLED_NUM];
 uint8_t rgblight_inited = 0;
+bool rgblight_timer_enabled = false;
+
+void sethsv(uint16_t hue, uint8_t sat, uint8_t val, LED_TYPE *led1) {
+  uint8_t r = 0, g = 0, b = 0, base, color;
+
+  if (sat == 0) { // Acromatic color (gray). Hue doesn't mind.
+    r = val;
+    g = val;
+    b = val;
+  } else {
+    base = ((255 - sat) * val) >> 8;
+    color = (val - base) * (hue % 60) / 60;
+
+    switch (hue / 60) {
+      case 0:
+        r = val;
+        g = base + color;
+        b = base;
+        break;
+      case 1:
+        r = val - color;
+        g = val;
+        b = base;
+        break;
+      case 2:
+        r = base;
+        g = val;
+        b = base + color;
+        break;
+      case 3:
+        r = base;
+        g = val - color;
+        b = val;
+        break;
+      case 4:
+        r = base + color;
+        g = base;
+        b = val;
+        break;
+      case 5:
+        r = val;
+        g = base;
+        b = val - color;
+        break;
+    }
+  }
+  r = pgm_read_byte(&CIE1931_CURVE[r]);
+  g = pgm_read_byte(&CIE1931_CURVE[g]);
+  b = pgm_read_byte(&CIE1931_CURVE[b]);
 
+  setrgb(r, g, b, led1);
+}
 
-void sethsv(uint16_t hue, uint8_t sat, uint8_t val, struct cRGB *led1) {
-	/* convert hue, saturation and brightness ( HSB/HSV ) to RGB
-	The DIM_CURVE is used only on brightness/value and on saturation (inverted).
-	This looks the most natural.
-	*/
-  uint8_t r, g, b;
-
-  val = pgm_read_byte(&DIM_CURVE[val]);
-	sat = 255 - pgm_read_byte(&DIM_CURVE[255 - sat]);
-
-	uint8_t base;
-
-	if (sat == 0) { // Acromatic color (gray). Hue doesn't mind.
-		r = val;
-		g = val;
-		b = val;
-	} else  {
-		base = ((255 - sat) * val) >> 8;
-
-		switch (hue / 60) {
-		case 0:
-			r = val;
-			g = (((val - base)*hue) / 60) + base;
-			b = base;
-			break;
-
-		case 1:
-			r = (((val - base)*(60 - (hue % 60))) / 60) + base;
-			g = val;
-			b = base;
-			break;
-
-		case 2:
-			r = base;
-			g = val;
-			b = (((val - base)*(hue % 60)) / 60) + base;
-			break;
-
-		case 3:
-			r = base;
-			g = (((val - base)*(60 - (hue % 60))) / 60) + base;
-			b = val;
-			break;
-
-		case 4:
-			r = (((val - base)*(hue % 60)) / 60) + base;
-			g = base;
-			b = val;
-			break;
-
-		case 5:
-			r = val;
-			g = base;
-			b = (((val - base)*(60 - (hue % 60))) / 60) + base;
-			break;
-		}
-	}
-  setrgb(r,g,b, led1);
-}
-
-void setrgb(uint8_t r, uint8_t g, uint8_t b, struct cRGB *led1) {
+void setrgb(uint8_t r, uint8_t g, uint8_t b, LED_TYPE *led1) {
   (*led1).r = r;
   (*led1).g = g;
   (*led1).b = b;
@@ -111,96 +108,139 @@ void eeconfig_update_rgblight(uint32_t val) {
   eeprom_update_dword(EECONFIG_RGBLIGHT, val);
 }
 void eeconfig_update_rgblight_default(void) {
-	dprintf("eeconfig_update_rgblight_default\n");
-	rgblight_config.enable = 1;
-	rgblight_config.mode = 1;
-	rgblight_config.hue = 200;
-	rgblight_config.sat = 204;
-	rgblight_config.val = 204;
-	eeconfig_update_rgblight(rgblight_config.raw);
+  dprintf("eeconfig_update_rgblight_default\n");
+  rgblight_config.enable = 1;
+  rgblight_config.mode = 1;
+  rgblight_config.hue = 0;
+  rgblight_config.sat = 255;
+  rgblight_config.val = 255;
+  eeconfig_update_rgblight(rgblight_config.raw);
 }
 void eeconfig_debug_rgblight(void) {
-	dprintf("rgblight_config eprom\n");
-	dprintf("rgblight_config.enable = %d\n", rgblight_config.enable);
-	dprintf("rghlight_config.mode = %d\n", rgblight_config.mode);
-	dprintf("rgblight_config.hue = %d\n", rgblight_config.hue);
-	dprintf("rgblight_config.sat = %d\n", rgblight_config.sat);
-	dprintf("rgblight_config.val = %d\n", rgblight_config.val);
+  dprintf("rgblight_config eprom\n");
+  dprintf("rgblight_config.enable = %d\n", rgblight_config.enable);
+  dprintf("rghlight_config.mode = %d\n", rgblight_config.mode);
+  dprintf("rgblight_config.hue = %d\n", rgblight_config.hue);
+  dprintf("rgblight_config.sat = %d\n", rgblight_config.sat);
+  dprintf("rgblight_config.val = %d\n", rgblight_config.val);
 }
 
 void rgblight_init(void) {
   debug_enable = 1; // Debug ON!
-	dprintf("rgblight_init called.\n");
+  dprintf("rgblight_init called.\n");
   rgblight_inited = 1;
-	dprintf("rgblight_init start!\n");
+  dprintf("rgblight_init start!\n");
   if (!eeconfig_is_enabled()) {
-		dprintf("rgblight_init eeconfig is not enabled.\n");
+    dprintf("rgblight_init eeconfig is not enabled.\n");
     eeconfig_init();
-		eeconfig_update_rgblight_default();
+    eeconfig_update_rgblight_default();
   }
   rgblight_config.raw = eeconfig_read_rgblight();
-	if (!rgblight_config.mode) {
-		dprintf("rgblight_init rgblight_config.mode = 0. Write default values to EEPROM.\n");
-		eeconfig_update_rgblight_default();
-		rgblight_config.raw = eeconfig_read_rgblight();
-	}
-	eeconfig_debug_rgblight(); // display current eeprom values
+  if (!rgblight_config.mode) {
+    dprintf("rgblight_init rgblight_config.mode = 0. Write default values to EEPROM.\n");
+    eeconfig_update_rgblight_default();
+    rgblight_config.raw = eeconfig_read_rgblight();
+  }
+  eeconfig_debug_rgblight(); // display current eeprom values
 
-	rgblight_timer_init(); // setup the timer
+  #ifdef RGBLIGHT_ANIMATIONS
+    rgblight_timer_init(); // setup the timer
+  #endif
 
   if (rgblight_config.enable) {
     rgblight_mode(rgblight_config.mode);
   }
 }
 
+void rgblight_update_dword(uint32_t dword) {
+  rgblight_config.raw = dword;
+  eeconfig_update_rgblight(rgblight_config.raw);
+  if (rgblight_config.enable)
+    rgblight_mode(rgblight_config.mode);
+  else {
+    #ifdef RGBLIGHT_ANIMATIONS
+      rgblight_timer_disable();
+    #endif
+      rgblight_set();
+  }
+}
+
 void rgblight_increase(void) {
-	uint8_t mode;
+  uint8_t mode = 0;
   if (rgblight_config.mode < RGBLIGHT_MODES) {
     mode = rgblight_config.mode + 1;
   }
-	rgblight_mode(mode);
+  rgblight_mode(mode);
 }
-
 void rgblight_decrease(void) {
-	uint8_t mode;
-  if (rgblight_config.mode > 1) { //mode will never < 1, if mode is less than 1, eeprom need to be initialized.
-    mode = rgblight_config.mode-1;
+  uint8_t mode = 0;
+  // Mode will never be < 1. If it ever is, eeprom needs to be initialized.
+  if (rgblight_config.mode > 1) {
+    mode = rgblight_config.mode - 1;
   }
-	rgblight_mode(mode);
+  rgblight_mode(mode);
 }
-
 void rgblight_step(void) {
-	uint8_t mode;
+  uint8_t mode = 0;
   mode = rgblight_config.mode + 1;
   if (mode > RGBLIGHT_MODES) {
     mode = 1;
   }
-	rgblight_mode(mode);
+  rgblight_mode(mode);
+}
+void rgblight_step_reverse(void) {
+  uint8_t mode = 0;
+  mode = rgblight_config.mode - 1;
+  if (mode < 1) {
+    mode = RGBLIGHT_MODES;
+  }
+  rgblight_mode(mode);
+}
+
+uint32_t rgblight_get_mode(void) {
+  if (!rgblight_config.enable) {
+    return false;
+  }
+
+  return rgblight_config.mode;
 }
 
 void rgblight_mode(uint8_t mode) {
-	if (!rgblight_config.enable) {
-		return;
-	}
-  if (mode<1) {
-		rgblight_config.mode = 1;
-	} else if (mode > RGBLIGHT_MODES) {
-		rgblight_config.mode = RGBLIGHT_MODES;
-	} else {
-		rgblight_config.mode = mode;
-	}
+  if (!rgblight_config.enable) {
+    return;
+  }
+  if (mode < 1) {
+    rgblight_config.mode = 1;
+  } else if (mode > RGBLIGHT_MODES) {
+    rgblight_config.mode = RGBLIGHT_MODES;
+  } else {
+    rgblight_config.mode = mode;
+  }
   eeconfig_update_rgblight(rgblight_config.raw);
   xprintf("rgblight mode: %u\n", rgblight_config.mode);
-	if (rgblight_config.mode == 1) {
-		rgblight_timer_disable();
-	} else if (rgblight_config.mode >=2 && rgblight_config.mode <=23) {
-		// MODE 2-5, breathing
-		// MODE 6-8, rainbow mood
-		// MODE 9-14, rainbow swirl
-		// MODE 15-20, snake
-		// MODE 21-23, knight
-		rgblight_timer_enable();
-	}
+  if (rgblight_config.mode == 1) {
+    #ifdef RGBLIGHT_ANIMATIONS
+      rgblight_timer_disable();
+    #endif
+  } else if (rgblight_config.mode >= 2 && rgblight_config.mode <= 24) {
+    // MODE 2-5, breathing
+    // MODE 6-8, rainbow mood
+    // MODE 9-14, rainbow swirl
+    // MODE 15-20, snake
+    // MODE 21-23, knight
+    // MODE 24, xmas
+    // MODE 25-34, static rainbow
+
+    #ifdef RGBLIGHT_ANIMATIONS
+      rgblight_timer_enable();
+    #endif
+  } else if (rgblight_config.mode >= 25 && rgblight_config.mode <= 34) {
+    // MODE 25-34, static gradient
+
+    #ifdef RGBLIGHT_ANIMATIONS
+      rgblight_timer_disable();
+    #endif
+  }
   rgblight_sethsv(rgblight_config.hue, rgblight_config.sat, rgblight_config.val);
 }
 
@@ -208,298 +248,369 @@ void rgblight_toggle(void) {
   rgblight_config.enable ^= 1;
   eeconfig_update_rgblight(rgblight_config.raw);
   xprintf("rgblight toggle: rgblight_config.enable = %u\n", rgblight_config.enable);
-	if (rgblight_config.enable) {
-		rgblight_mode(rgblight_config.mode);
-	} else {
-		rgblight_timer_disable();
-		_delay_ms(50);
-		rgblight_set();
-	}
+  if (rgblight_config.enable) {
+    rgblight_mode(rgblight_config.mode);
+  } else {
+    #ifdef RGBLIGHT_ANIMATIONS
+      rgblight_timer_disable();
+    #endif
+    _delay_ms(50);
+    rgblight_set();
+  }
+}
+
+void rgblight_enable(void) {
+  rgblight_config.enable = 1;
+  eeconfig_update_rgblight(rgblight_config.raw);
+  xprintf("rgblight enable: rgblight_config.enable = %u\n", rgblight_config.enable);
+  rgblight_mode(rgblight_config.mode);
 }
 
 
-void rgblight_increase_hue(void){
-	uint16_t hue;
+void rgblight_increase_hue(void) {
+  uint16_t hue;
   hue = (rgblight_config.hue+RGBLIGHT_HUE_STEP) % 360;
   rgblight_sethsv(hue, rgblight_config.sat, rgblight_config.val);
 }
-void rgblight_decrease_hue(void){
-	uint16_t hue;
-	if (rgblight_config.hue-RGBLIGHT_HUE_STEP <0 ) {
-		hue = (rgblight_config.hue+360-RGBLIGHT_HUE_STEP) % 360;
-	} else {
-		hue = (rgblight_config.hue-RGBLIGHT_HUE_STEP) % 360;
-	}
+void rgblight_decrease_hue(void) {
+  uint16_t hue;
+  if (rgblight_config.hue-RGBLIGHT_HUE_STEP < 0) {
+    hue = (rgblight_config.hue + 360 - RGBLIGHT_HUE_STEP) % 360;
+  } else {
+    hue = (rgblight_config.hue - RGBLIGHT_HUE_STEP) % 360;
+  }
   rgblight_sethsv(hue, rgblight_config.sat, rgblight_config.val);
 }
 void rgblight_increase_sat(void) {
-	uint8_t sat;
+  uint8_t sat;
   if (rgblight_config.sat + RGBLIGHT_SAT_STEP > 255) {
     sat = 255;
   } else {
-    sat = rgblight_config.sat+RGBLIGHT_SAT_STEP;
+    sat = rgblight_config.sat + RGBLIGHT_SAT_STEP;
   }
   rgblight_sethsv(rgblight_config.hue, sat, rgblight_config.val);
 }
-void rgblight_decrease_sat(void){
-	uint8_t sat;
+void rgblight_decrease_sat(void) {
+  uint8_t sat;
   if (rgblight_config.sat - RGBLIGHT_SAT_STEP < 0) {
     sat = 0;
   } else {
-    sat = rgblight_config.sat-RGBLIGHT_SAT_STEP;
+    sat = rgblight_config.sat - RGBLIGHT_SAT_STEP;
   }
   rgblight_sethsv(rgblight_config.hue, sat, rgblight_config.val);
 }
-void rgblight_increase_val(void){
-	uint8_t val;
+void rgblight_increase_val(void) {
+  uint8_t val;
   if (rgblight_config.val + RGBLIGHT_VAL_STEP > 255) {
     val = 255;
   } else {
-    val = rgblight_config.val+RGBLIGHT_VAL_STEP;
+    val = rgblight_config.val + RGBLIGHT_VAL_STEP;
   }
   rgblight_sethsv(rgblight_config.hue, rgblight_config.sat, val);
 }
 void rgblight_decrease_val(void) {
-	uint8_t val;
+  uint8_t val;
   if (rgblight_config.val - RGBLIGHT_VAL_STEP < 0) {
     val = 0;
   } else {
-    val = rgblight_config.val-RGBLIGHT_VAL_STEP;
+    val = rgblight_config.val - RGBLIGHT_VAL_STEP;
   }
   rgblight_sethsv(rgblight_config.hue, rgblight_config.sat, val);
 }
 
-void rgblight_sethsv_noeeprom(uint16_t hue, uint8_t sat, uint8_t val){
-	inmem_config.raw = rgblight_config.raw;
+void rgblight_sethsv_noeeprom(uint16_t hue, uint8_t sat, uint8_t val) {
+  inmem_config.raw = rgblight_config.raw;
   if (rgblight_config.enable) {
-    struct cRGB tmp_led;
+    LED_TYPE tmp_led;
     sethsv(hue, sat, val, &tmp_led);
-		inmem_config.hue = hue;
-		inmem_config.sat = sat;
-		inmem_config.val = val;
+    inmem_config.hue = hue;
+    inmem_config.sat = sat;
+    inmem_config.val = val;
     // dprintf("rgblight set hue [MEMORY]: %u,%u,%u\n", inmem_config.hue, inmem_config.sat, inmem_config.val);
     rgblight_setrgb(tmp_led.r, tmp_led.g, tmp_led.b);
   }
 }
-void rgblight_sethsv(uint16_t hue, uint8_t sat, uint8_t val){
+void rgblight_sethsv(uint16_t hue, uint8_t sat, uint8_t val) {
   if (rgblight_config.enable) {
-		if (rgblight_config.mode == 1) {
-			// same static color
-			rgblight_sethsv_noeeprom(hue, sat, val);
-		} else {
-			// all LEDs in same color
-			if (rgblight_config.mode >= 2 && rgblight_config.mode <= 5) {
-				// breathing mode, ignore the change of val, use in memory value instead
-				val = rgblight_config.val;
-			} else if (rgblight_config.mode >= 6 && rgblight_config.mode <= 14) {
-				// rainbow mood and rainbow swirl, ignore the change of hue
-				hue = rgblight_config.hue;
-			}
-		}
-		rgblight_config.hue = hue;
-		rgblight_config.sat = sat;
-		rgblight_config.val = val;
-		eeconfig_update_rgblight(rgblight_config.raw);
-		xprintf("rgblight set hsv [EEPROM]: %u,%u,%u\n", rgblight_config.hue, rgblight_config.sat, rgblight_config.val);
-  }
-}
-
-void rgblight_setrgb(uint8_t r, uint8_t g, uint8_t b){
+    if (rgblight_config.mode == 1) {
+      // same static color
+      rgblight_sethsv_noeeprom(hue, sat, val);
+    } else {
+      // all LEDs in same color
+      if (rgblight_config.mode >= 2 && rgblight_config.mode <= 5) {
+        // breathing mode, ignore the change of val, use in memory value instead
+        val = rgblight_config.val;
+      } else if (rgblight_config.mode >= 6 && rgblight_config.mode <= 14) {
+        // rainbow mood and rainbow swirl, ignore the change of hue
+        hue = rgblight_config.hue;
+      } else if (rgblight_config.mode >= 25 && rgblight_config.mode <= 34) {
+        // static gradient
+        uint16_t _hue;
+        int8_t direction = ((rgblight_config.mode - 25) % 2) ? -1 : 1;
+        uint16_t range = pgm_read_word(&RGBLED_GRADIENT_RANGES[(rgblight_config.mode - 25) / 2]);
+        for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+          _hue = (range / RGBLED_NUM * i * direction + hue + 360) % 360;
+          dprintf("rgblight rainbow set hsv: %u,%u,%d,%u\n", i, _hue, direction, range);
+          sethsv(_hue, sat, val, (LED_TYPE *)&led[i]);
+        }
+        rgblight_set();
+      }
+    }
+    rgblight_config.hue = hue;
+    rgblight_config.sat = sat;
+    rgblight_config.val = val;
+    eeconfig_update_rgblight(rgblight_config.raw);
+    xprintf("rgblight set hsv [EEPROM]: %u,%u,%u\n", rgblight_config.hue, rgblight_config.sat, rgblight_config.val);
+  }
+}
+
+void rgblight_setrgb(uint8_t r, uint8_t g, uint8_t b) {
   // dprintf("rgblight set rgb: %u,%u,%u\n", r,g,b);
-  for (uint8_t i=0;i<RGBLED_NUM;i++) {
+  for (uint8_t i = 0; i < RGBLED_NUM; i++) {
     led[i].r = r;
     led[i].g = g;
     led[i].b = b;
   }
   rgblight_set();
-
 }
 
+#ifndef RGBLIGHT_CUSTOM_DRIVER
 void rgblight_set(void) {
-	if (rgblight_config.enable) {
-		ws2812_setleds(led, RGBLED_NUM);
-	} else {
-		for (uint8_t i=0;i<RGBLED_NUM;i++) {
-	    led[i].r = 0;
-	    led[i].g = 0;
-	    led[i].b = 0;
-	  }
-		ws2812_setleds(led, RGBLED_NUM);
-	}
+  if (rgblight_config.enable) {
+    #ifdef RGBW
+      ws2812_setleds_rgbw(led, RGBLED_NUM);
+    #else
+      ws2812_setleds(led, RGBLED_NUM);
+    #endif
+  } else {
+    for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+      led[i].r = 0;
+      led[i].g = 0;
+      led[i].b = 0;
+    }
+    #ifdef RGBW
+      ws2812_setleds_rgbw(led, RGBLED_NUM);
+    #else
+      ws2812_setleds(led, RGBLED_NUM);
+    #endif
+  }
 }
+#endif
+
+#ifdef RGBLIGHT_ANIMATIONS
 
 // Animation timer -- AVR Timer3
 void rgblight_timer_init(void) {
-	static uint8_t rgblight_timer_is_init = 0;
-	if (rgblight_timer_is_init) {
-		return;
-	}
-	rgblight_timer_is_init = 1;
-	/* Timer 3 setup */
-	TCCR3B = _BV(WGM32) //CTC mode OCR3A as TOP
-	      | _BV(CS30); //Clock selelct: clk/1
-	/* Set TOP value */
-	uint8_t sreg = SREG;
-	cli();
-	OCR3AH = (RGBLED_TIMER_TOP>>8)&0xff;
-	OCR3AL = RGBLED_TIMER_TOP&0xff;
-	SREG = sreg;
+  // static uint8_t rgblight_timer_is_init = 0;
+  // if (rgblight_timer_is_init) {
+  //   return;
+  // }
+  // rgblight_timer_is_init = 1;
+  // /* Timer 3 setup */
+  // TCCR3B = _BV(WGM32) // CTC mode OCR3A as TOP
+  //       | _BV(CS30); // Clock selelct: clk/1
+  // /* Set TOP value */
+  // uint8_t sreg = SREG;
+  // cli();
+  // OCR3AH = (RGBLED_TIMER_TOP >> 8) & 0xff;
+  // OCR3AL = RGBLED_TIMER_TOP & 0xff;
+  // SREG = sreg;
+
+  rgblight_timer_enabled = true;
 }
 void rgblight_timer_enable(void) {
-	TIMSK3 |= _BV(OCIE3A);
-	dprintf("TIMER3 enabled.\n");
+  rgblight_timer_enabled = true;
+  dprintf("TIMER3 enabled.\n");
 }
 void rgblight_timer_disable(void) {
-	TIMSK3 &= ~_BV(OCIE3A);
-	dprintf("TIMER3 disabled.\n");
+  rgblight_timer_enabled = false;
+  dprintf("TIMER3 disabled.\n");
 }
 void rgblight_timer_toggle(void) {
-	TIMSK3 ^= _BV(OCIE3A);
-	dprintf("TIMER3 toggled.\n");
-}
-
-ISR(TIMER3_COMPA_vect) {
-	// Mode = 1, static light, do nothing here
-	if (rgblight_config.mode>=2 && rgblight_config.mode<=5) {
-		// mode = 2 to 5, breathing mode
-		rgblight_effect_breathing(rgblight_config.mode-2);
-
-	} else if (rgblight_config.mode>=6 && rgblight_config.mode<=8) {
-		rgblight_effect_rainbow_mood(rgblight_config.mode-6);
-	} else if (rgblight_config.mode>=9 && rgblight_config.mode<=14) {
-		rgblight_effect_rainbow_swirl(rgblight_config.mode-9);
-	} else if (rgblight_config.mode>=15 && rgblight_config.mode<=20) {
-		rgblight_effect_snake(rgblight_config.mode-15);
-	} else if (rgblight_config.mode>=21 && rgblight_config.mode<=23) {
-		rgblight_effect_knight(rgblight_config.mode-21);
-	}
+  rgblight_timer_enabled ^= rgblight_timer_enabled;
+  dprintf("TIMER3 toggled.\n");
+}
+
+void rgblight_show_solid_color(uint8_t r, uint8_t g, uint8_t b) {
+  rgblight_enable();
+  rgblight_mode(1);
+  rgblight_setrgb(r, g, b);
+}
+
+void rgblight_task(void) {
+  if (rgblight_timer_enabled) {
+    // mode = 1, static light, do nothing here
+    if (rgblight_config.mode >= 2 && rgblight_config.mode <= 5) {
+      // mode = 2 to 5, breathing mode
+      rgblight_effect_breathing(rgblight_config.mode - 2);
+    } else if (rgblight_config.mode >= 6 && rgblight_config.mode <= 8) {
+      // mode = 6 to 8, rainbow mood mod
+      rgblight_effect_rainbow_mood(rgblight_config.mode - 6);
+    } else if (rgblight_config.mode >= 9 && rgblight_config.mode <= 14) {
+      // mode = 9 to 14, rainbow swirl mode
+      rgblight_effect_rainbow_swirl(rgblight_config.mode - 9);
+    } else if (rgblight_config.mode >= 15 && rgblight_config.mode <= 20) {
+      // mode = 15 to 20, snake mode
+      rgblight_effect_snake(rgblight_config.mode - 15);
+    } else if (rgblight_config.mode >= 21 && rgblight_config.mode <= 23) {
+      // mode = 21 to 23, knight mode
+      rgblight_effect_knight(rgblight_config.mode - 21);
+    } else if (rgblight_config.mode == 24) {
+      // mode = 24, christmas mode
+      rgblight_effect_christmas();
+    }
+  }
 }
 
-// effects
+// Effects
 void rgblight_effect_breathing(uint8_t interval) {
-	static uint8_t pos = 0;
-	static uint16_t last_timer = 0;
+  static uint8_t pos = 0;
+  static uint16_t last_timer = 0;
+  float val;
 
-	if (timer_elapsed(last_timer)<pgm_read_byte(&RGBLED_BREATHING_INTERVALS[interval])) return;
-	last_timer = timer_read();
+  if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_BREATHING_INTERVALS[interval])) {
+    return;
+  }
+  last_timer = timer_read();
 
-	rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, pgm_read_byte(&RGBLED_BREATHING_TABLE[pos]));
-	pos = (pos+1) % 256;
-}
 
+  // http://sean.voisen.org/blog/2011/10/breathing-led-with-arduino/
+  val = (exp(sin((pos/255.0)*M_PI)) - RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)*(RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E));
+  rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, val);
+  pos = (pos + 1) % 256;
+}
 void rgblight_effect_rainbow_mood(uint8_t interval) {
-	static uint16_t current_hue=0;
-	static uint16_t last_timer = 0;
+  static uint16_t current_hue = 0;
+  static uint16_t last_timer = 0;
 
-	if (timer_elapsed(last_timer)<pgm_read_byte(&RGBLED_RAINBOW_MOOD_INTERVALS[interval])) return;
-	last_timer = timer_read();
-	rgblight_sethsv_noeeprom(current_hue, rgblight_config.sat, rgblight_config.val);
-	current_hue = (current_hue+1) % 360;
+  if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_RAINBOW_MOOD_INTERVALS[interval])) {
+    return;
+  }
+  last_timer = timer_read();
+  rgblight_sethsv_noeeprom(current_hue, rgblight_config.sat, rgblight_config.val);
+  current_hue = (current_hue + 1) % 360;
 }
-
 void rgblight_effect_rainbow_swirl(uint8_t interval) {
-	static uint16_t current_hue=0;
-	static uint16_t last_timer = 0;
-	uint16_t hue;
-	uint8_t i;
-	if (timer_elapsed(last_timer)<pgm_read_byte(&RGBLED_RAINBOW_MOOD_INTERVALS[interval/2])) return;
-	last_timer = timer_read();
-	for (i=0; i<RGBLED_NUM; i++) {
-		hue = (360/RGBLED_NUM*i+current_hue)%360;
-		sethsv(hue, rgblight_config.sat, rgblight_config.val, &led[i]);
-	}
-	rgblight_set();
-
-	if (interval % 2) {
-		current_hue = (current_hue+1) % 360;
-	} else {
-		if (current_hue -1 < 0) {
-			current_hue = 359;
-		} else {
-			current_hue = current_hue - 1;
-		}
-
-	}
+  static uint16_t current_hue = 0;
+  static uint16_t last_timer = 0;
+  uint16_t hue;
+  uint8_t i;
+  if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_RAINBOW_SWIRL_INTERVALS[interval / 2])) {
+    return;
+  }
+  last_timer = timer_read();
+  for (i = 0; i < RGBLED_NUM; i++) {
+    hue = (360 / RGBLED_NUM * i + current_hue) % 360;
+    sethsv(hue, rgblight_config.sat, rgblight_config.val, (LED_TYPE *)&led[i]);
+  }
+  rgblight_set();
+
+  if (interval % 2) {
+    current_hue = (current_hue + 1) % 360;
+  } else {
+    if (current_hue - 1 < 0) {
+      current_hue = 359;
+    } else {
+      current_hue = current_hue - 1;
+    }
+  }
 }
 void rgblight_effect_snake(uint8_t interval) {
-	static uint8_t pos=0;
-	static uint16_t last_timer = 0;
-	uint8_t i,j;
-	int8_t k;
-	int8_t increament = 1;
-	if (interval%2) increament = -1;
-	if (timer_elapsed(last_timer)<pgm_read_byte(&RGBLED_SNAKE_INTERVALS[interval/2])) return;
-	last_timer = timer_read();
-	for (i=0;i<RGBLED_NUM;i++) {
-		led[i].r=0;
-		led[i].g=0;
-		led[i].b=0;
-		for (j=0;j<RGBLIGHT_EFFECT_SNAKE_LENGTH;j++) {
-			k = pos+j*increament;
-			if (k<0) k = k+RGBLED_NUM;
-			if (i==k) {
-				sethsv(rgblight_config.hue, rgblight_config.sat, (uint8_t)(rgblight_config.val*(RGBLIGHT_EFFECT_SNAKE_LENGTH-j)/RGBLIGHT_EFFECT_SNAKE_LENGTH), &led[i]);
-			}
-		}
-	}
-	rgblight_set();
-	if (increament == 1) {
-		if (pos - 1 < 0) {
-			pos = RGBLED_NUM-1;
-		} else {
-			pos -= 1;
-		}
-	} else {
-		pos = (pos+1)%RGBLED_NUM;
-	}
+  static uint8_t pos = 0;
+  static uint16_t last_timer = 0;
+  uint8_t i, j;
+  int8_t k;
+  int8_t increment = 1;
+  if (interval % 2) {
+    increment = -1;
+  }
+  if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_SNAKE_INTERVALS[interval / 2])) {
+    return;
+  }
+  last_timer = timer_read();
+  for (i = 0; i < RGBLED_NUM; i++) {
+    led[i].r = 0;
+    led[i].g = 0;
+    led[i].b = 0;
+    for (j = 0; j < RGBLIGHT_EFFECT_SNAKE_LENGTH; j++) {
+      k = pos + j * increment;
+      if (k < 0) {
+        k = k + RGBLED_NUM;
+      }
+      if (i == k) {
+        sethsv(rgblight_config.hue, rgblight_config.sat, (uint8_t)(rgblight_config.val*(RGBLIGHT_EFFECT_SNAKE_LENGTH-j)/RGBLIGHT_EFFECT_SNAKE_LENGTH), (LED_TYPE *)&led[i]);
+      }
+    }
+  }
+  rgblight_set();
+  if (increment == 1) {
+    if (pos - 1 < 0) {
+      pos = RGBLED_NUM - 1;
+    } else {
+      pos -= 1;
+    }
+  } else {
+    pos = (pos + 1) % RGBLED_NUM;
+  }
+}
+void rgblight_effect_knight(uint8_t interval) {
+  static uint16_t last_timer = 0;
+  if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_KNIGHT_INTERVALS[interval])) {
+    return;
+  }
+  last_timer = timer_read();
+
+  static int8_t low_bound = 0;
+  static int8_t high_bound = RGBLIGHT_EFFECT_KNIGHT_LENGTH - 1;
+  static int8_t increment = 1;
+  uint8_t i, cur;
+
+  // Set all the LEDs to 0
+  for (i = 0; i < RGBLED_NUM; i++) {
+    led[i].r = 0;
+    led[i].g = 0;
+    led[i].b = 0;
+  }
+  // Determine which LEDs should be lit up
+  for (i = 0; i < RGBLIGHT_EFFECT_KNIGHT_LED_NUM; i++) {
+    cur = (i + RGBLIGHT_EFFECT_KNIGHT_OFFSET) % RGBLED_NUM;
+
+    if (i >= low_bound && i <= high_bound) {
+      sethsv(rgblight_config.hue, rgblight_config.sat, rgblight_config.val, (LED_TYPE *)&led[cur]);
+    } else {
+      led[cur].r = 0;
+      led[cur].g = 0;
+      led[cur].b = 0;
+    }
+  }
+  rgblight_set();
+
+  // Move from low_bound to high_bound changing the direction we increment each
+  // time a boundary is hit.
+  low_bound += increment;
+  high_bound += increment;
 
+  if (high_bound <= 0 || low_bound >= RGBLIGHT_EFFECT_KNIGHT_LED_NUM - 1) {
+    increment = -increment;
+  }
 }
 
-void rgblight_effect_knight(uint8_t interval) {
-	static int8_t pos=0;
-	static uint16_t last_timer = 0;
-	uint8_t i,j,cur;
-	int8_t k;
-	struct cRGB preled[RGBLED_NUM];
-	static int8_t increament = -1;
-	if (timer_elapsed(last_timer)<pgm_read_byte(&RGBLED_KNIGHT_INTERVALS[interval])) return;
-	last_timer = timer_read();
-	for (i=0;i<RGBLED_NUM;i++) {
-		preled[i].r=0;
-		preled[i].g=0;
-		preled[i].b=0;
-		for (j=0;j<RGBLIGHT_EFFECT_KNIGHT_LENGTH;j++) {
-			k = pos+j*increament;
-			if (k<0) k = 0;
-			if (k>=RGBLED_NUM) k=RGBLED_NUM-1;
-			if (i==k) {
-				sethsv(rgblight_config.hue, rgblight_config.sat, rgblight_config.val, &preled[i]);
-			}
-		}
-	}
-	if (RGBLIGHT_EFFECT_KNIGHT_OFFSET) {
-		for (i=0;i<RGBLED_NUM;i++) {
-			cur = (i+RGBLIGHT_EFFECT_KNIGHT_OFFSET) % RGBLED_NUM;
-			led[i].r = preled[cur].r;
-			led[i].g = preled[cur].g;
-			led[i].b = preled[cur].b;
-		}
-	}
-	rgblight_set();
-	if (increament == 1) {
-		if (pos - 1 < 0 - RGBLIGHT_EFFECT_KNIGHT_LENGTH) {
-			pos = 0- RGBLIGHT_EFFECT_KNIGHT_LENGTH;
-			increament = -1;
-		} else {
-			pos -= 1;
-		}
-	} else {
-		if (pos+1>RGBLED_NUM+RGBLIGHT_EFFECT_KNIGHT_LENGTH) {
-			pos = RGBLED_NUM+RGBLIGHT_EFFECT_KNIGHT_LENGTH-1;
-			increament = 1;
-		} else {
-			pos += 1;
-		}
-	}
 
+void rgblight_effect_christmas(void) {
+  static uint16_t current_offset = 0;
+  static uint16_t last_timer = 0;
+  uint16_t hue;
+  uint8_t i;
+  if (timer_elapsed(last_timer) < RGBLIGHT_EFFECT_CHRISTMAS_INTERVAL) {
+    return;
+  }
+  last_timer = timer_read();
+  current_offset = (current_offset + 1) % 2;
+  for (i = 0; i < RGBLED_NUM; i++) {
+    hue = 0 + ((i/RGBLIGHT_EFFECT_CHRISTMAS_STEP + current_offset) % 2) * 120;
+    sethsv(hue, rgblight_config.sat, rgblight_config.val, (LED_TYPE *)&led[i]);
+  }
+  rgblight_set();
 }
+
+#endif