18 files changed, 1571 insertions, 0 deletions
diff --git a/quantum/visualizer/LICENSE.md b/quantum/visualizer/LICENSE.md
new file mode 100644
index 0000000000..22d4c3f08b
--- /dev/null
+++ b/quantum/visualizer/LICENSE.md
@@ -0,0 +1,29 @@
+The files in this project are licensed under the MIT license
+It uses the following libraries
+uGFX - with it's own license, see the license.html file in the uGFX subfolder for more information
+tmk_core - is indirectly used and not included in the repository. It's licensed under the GPLv2 license
+Chibios - which is used by tmk_core is licensed under GPLv3.
+
+Therefore the effective license for any project using the library is GPLv3
+
+The MIT License (MIT)
+
+Copyright (c) 2016 Fred Sundvik
+
+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.
diff --git a/quantum/visualizer/lcd_backlight.c b/quantum/visualizer/lcd_backlight.c
new file mode 100644
index 0000000000..6cd996f75e
--- /dev/null
+++ b/quantum/visualizer/lcd_backlight.c
@@ -0,0 +1,89 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 Fred Sundvik
+
+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 "lcd_backlight.h"
+#include <math.h>
+
+static uint8_t current_hue = 0;
+static uint8_t current_saturation = 0;
+static uint8_t current_intensity = 0;
+static uint8_t current_brightness = 0;
+
+void lcd_backlight_init(void) {
+    lcd_backlight_hal_init();
+    lcd_backlight_color(current_hue, current_saturation, current_intensity);
+}
+
+// This code is based on Brian Neltner's blogpost and example code
+// "Why every LED light should be using HSI colorspace".
+// http://blog.saikoled.com/post/43693602826/why-every-led-light-should-be-using-hsi
+static void hsi_to_rgb(float h, float s, float i, uint16_t* r_out, uint16_t* g_out, uint16_t* b_out) {
+    unsigned int r, g, b;
+    h = fmodf(h, 360.0f); // cycle h around to 0-360 degrees
+    h = 3.14159f * h / 180.0f; // Convert to radians.
+    s = s > 0.0f ? (s < 1.0f ? s : 1.0f) : 0.0f; // clamp s and i to interval [0,1]
+    i = i > 0.0f ? (i < 1.0f ? i : 1.0f) : 0.0f;
+
+    // Math! Thanks in part to Kyle Miller.
+    if(h < 2.09439f) {
+        r = 65535.0f * i/3.0f *(1.0f + s * cos(h) / cosf(1.047196667f - h));
+        g = 65535.0f * i/3.0f *(1.0f + s *(1.0f - cosf(h) / cos(1.047196667f - h)));
+        b = 65535.0f * i/3.0f *(1.0f - s);
+    } else if(h < 4.188787) {
+        h = h - 2.09439;
+        g = 65535.0f * i/3.0f *(1.0f + s * cosf(h) / cosf(1.047196667f - h));
+        b = 65535.0f * i/3.0f *(1.0f + s * (1.0f - cosf(h) / cosf(1.047196667f - h)));
+        r = 65535.0f * i/3.0f *(1.0f - s);
+    } else {
+        h = h - 4.188787;
+        b = 65535.0f*i/3.0f * (1.0f + s * cosf(h) / cosf(1.047196667f - h));
+        r = 65535.0f*i/3.0f * (1.0f + s * (1.0f - cosf(h) / cosf(1.047196667f - h)));
+        g = 65535.0f*i/3.0f * (1.0f - s);
+    }
+    *r_out = r > 65535 ? 65535 : r;
+    *g_out = g > 65535 ? 65535 : g;
+    *b_out = b > 65535 ? 65535 : b;
+}
+
+void lcd_backlight_color(uint8_t hue, uint8_t saturation, uint8_t intensity) {
+    uint16_t r, g, b;
+    float hue_f = 360.0f * (float)hue / 255.0f;
+    float saturation_f = (float)saturation / 255.0f;
+    float intensity_f = (float)intensity / 255.0f;
+    intensity_f *= (float)current_brightness / 255.0f;
+    hsi_to_rgb(hue_f, saturation_f, intensity_f, &r, &g, &b);
+	current_hue = hue;
+	current_saturation = saturation;
+	current_intensity = intensity;
+	lcd_backlight_hal_color(r, g, b);
+}
+
+void lcd_backlight_brightness(uint8_t b) {
+    current_brightness = b;
+    lcd_backlight_color(current_hue, current_saturation, current_intensity);
+}
+
+uint8_t lcd_get_backlight_brightness(void) {
+	return current_brightness;
+}
diff --git a/quantum/visualizer/lcd_backlight.h b/quantum/visualizer/lcd_backlight.h
new file mode 100644
index 0000000000..95d7a07b46
--- /dev/null
+++ b/quantum/visualizer/lcd_backlight.h
@@ -0,0 +1,47 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 Fred Sundvik
+
+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 LCD_BACKLIGHT_H_
+#define LCD_BACKLIGHT_H_
+#include "stdint.h"
+
+// Helper macros for storing hue, staturation and intensity as unsigned integers
+#define LCD_COLOR(hue, saturation, intensity) (hue << 16 | saturation << 8 | intensity)
+#define LCD_HUE(color) ((color >> 16) & 0xFF)
+#define LCD_SAT(color) ((color >> 8) & 0xFF)
+#define LCD_INT(color) (color & 0xFF)
+
+static inline uint32_t change_lcd_color_intensity(uint32_t color, uint8_t new_intensity) {
+    return (color & 0xFFFFFF00) | new_intensity;
+}
+
+void lcd_backlight_init(void);
+void lcd_backlight_color(uint8_t hue, uint8_t saturation, uint8_t intensity);
+void lcd_backlight_brightness(uint8_t b);
+uint8_t lcd_get_backlight_brightness(void);
+
+void lcd_backlight_hal_init(void);
+void lcd_backlight_hal_color(uint16_t r, uint16_t g, uint16_t b);
+
+#endif /* LCD_BACKLIGHT_H_ */
diff --git a/quantum/visualizer/lcd_backlight_keyframes.c b/quantum/visualizer/lcd_backlight_keyframes.c
new file mode 100644
index 0000000000..8436d4e3dd
--- /dev/null
+++ b/quantum/visualizer/lcd_backlight_keyframes.c
@@ -0,0 +1,77 @@
+/* Copyright 2017 Fred Sundvik
+ *
+ * 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 "lcd_backlight_keyframes.h"
+
+bool backlight_keyframe_animate_color(keyframe_animation_t* animation, visualizer_state_t* state) {
+    int frame_length = animation->frame_lengths[animation->current_frame];
+    int current_pos = frame_length - animation->time_left_in_frame;
+    uint8_t t_h = LCD_HUE(state->target_lcd_color);
+    uint8_t t_s = LCD_SAT(state->target_lcd_color);
+    uint8_t t_i = LCD_INT(state->target_lcd_color);
+    uint8_t p_h = LCD_HUE(state->prev_lcd_color);
+    uint8_t p_s = LCD_SAT(state->prev_lcd_color);
+    uint8_t p_i = LCD_INT(state->prev_lcd_color);
+
+    uint8_t d_h1 = t_h - p_h; //Modulo arithmetic since we want to wrap around
+    int d_h2 = t_h - p_h;
+    // Chose the shortest way around
+    int d_h = abs(d_h2) < d_h1 ? d_h2 : d_h1;
+    int d_s = t_s - p_s;
+    int d_i = t_i - p_i;
+
+    int hue = (d_h * current_pos) / frame_length;
+    int sat = (d_s * current_pos) / frame_length;
+    int intensity = (d_i * current_pos) / frame_length;
+    //dprintf("%X -> %X = %X\n", p_h, t_h, hue);
+    hue += p_h;
+    sat += p_s;
+    intensity += p_i;
+    state->current_lcd_color = LCD_COLOR(hue, sat, intensity);
+    lcd_backlight_color(
+            LCD_HUE(state->current_lcd_color),
+            LCD_SAT(state->current_lcd_color),
+            LCD_INT(state->current_lcd_color));
+
+    return true;
+}
+
+bool backlight_keyframe_set_color(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    state->prev_lcd_color = state->target_lcd_color;
+    state->current_lcd_color = state->target_lcd_color;
+    lcd_backlight_color(
+            LCD_HUE(state->current_lcd_color),
+            LCD_SAT(state->current_lcd_color),
+            LCD_INT(state->current_lcd_color));
+    return false;
+}
+
+bool backlight_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    (void)state;
+    lcd_backlight_hal_color(0, 0, 0);
+    return false;
+}
+
+bool backlight_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    (void)state;
+    lcd_backlight_color(LCD_HUE(state->current_lcd_color),
+        LCD_SAT(state->current_lcd_color),
+        LCD_INT(state->current_lcd_color));
+    return false;
+}
diff --git a/quantum/visualizer/lcd_backlight_keyframes.h b/quantum/visualizer/lcd_backlight_keyframes.h
new file mode 100644
index 0000000000..e1c125cf91
--- /dev/null
+++ b/quantum/visualizer/lcd_backlight_keyframes.h
@@ -0,0 +1,30 @@
+/* Copyright 2017 Fred Sundvik
+ *
+ * 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 QUANTUM_VISUALIZER_LCD_BACKLIGHT_KEYFRAMES_H_
+#define QUANTUM_VISUALIZER_LCD_BACKLIGHT_KEYFRAMES_H_
+
+#include "visualizer.h"
+
+// Animates the LCD backlight color between the current color and the target color (of the state)
+bool backlight_keyframe_animate_color(keyframe_animation_t* animation, visualizer_state_t* state);
+// Sets the backlight color to the target color
+bool backlight_keyframe_set_color(keyframe_animation_t* animation, visualizer_state_t* state);
+
+bool backlight_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state);
+bool backlight_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state);
+
+#endif /* QUANTUM_VISUALIZER_LCD_BACKLIGHT_KEYFRAMES_H_ */
diff --git a/quantum/visualizer/lcd_keyframes.c b/quantum/visualizer/lcd_keyframes.c
new file mode 100644
index 0000000000..82e4184d2c
--- /dev/null
+++ b/quantum/visualizer/lcd_keyframes.c
@@ -0,0 +1,188 @@
+/* Copyright 2017 Fred Sundvik
+ *
+ * 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 "lcd_keyframes.h"
+#include <string.h>
+#include "action_util.h"
+#include "led.h"
+#include "resources/resources.h"
+
+bool lcd_keyframe_display_layer_text(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    gdispClear(White);
+    gdispDrawString(0, 10, state->layer_text, state->font_dejavusansbold12, Black);
+    return false;
+}
+
+static void format_layer_bitmap_string(uint16_t default_layer, uint16_t layer, char* buffer) {
+    for (int i=0; i<16;i++)
+    {
+        uint32_t mask = (1u << i);
+        if (default_layer & mask) {
+            if (layer & mask) {
+                *buffer = 'B';
+            } else {
+                *buffer = 'D';
+            }
+        } else if (layer & mask) {
+            *buffer = '1';
+        } else {
+            *buffer = '0';
+        }
+        ++buffer;
+
+        if (i==3 || i==7 || i==11) {
+            *buffer = ' ';
+            ++buffer;
+        }
+    }
+    *buffer = 0;
+}
+
+bool lcd_keyframe_display_layer_bitmap(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    const char* layer_help = "1=On D=Default B=Both";
+    char layer_buffer[16 + 4]; // 3 spaces and one null terminator
+    gdispClear(White);
+    gdispDrawString(0, 0, layer_help, state->font_fixed5x8, Black);
+    format_layer_bitmap_string(state->status.default_layer, state->status.layer, layer_buffer);
+    gdispDrawString(0, 10, layer_buffer, state->font_fixed5x8, Black);
+    format_layer_bitmap_string(state->status.default_layer >> 16, state->status.layer >> 16, layer_buffer);
+    gdispDrawString(0, 20, layer_buffer, state->font_fixed5x8, Black);
+    return false;
+}
+
+static void format_mods_bitmap_string(uint8_t mods, char* buffer) {
+    *buffer = ' ';
+    ++buffer;
+
+    for (int i = 0; i<8; i++)
+    {
+        uint32_t mask = (1u << i);
+        if (mods & mask) {
+            *buffer = '1';
+        } else {
+            *buffer = '0';
+        }
+        ++buffer;
+
+        if (i==3) {
+            *buffer = ' ';
+            ++buffer;
+        }
+    }
+    *buffer = 0;
+}
+
+bool lcd_keyframe_display_mods_bitmap(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+
+    const char* title = "Modifier states";
+    const char* mods_header = " CSAG CSAG ";
+    char status_buffer[12];
+
+    gdispClear(White);
+    gdispDrawString(0, 0, title, state->font_fixed5x8, Black);
+    gdispDrawString(0, 10, mods_header, state->font_fixed5x8, Black);
+    format_mods_bitmap_string(state->status.mods, status_buffer);
+    gdispDrawString(0, 20, status_buffer, state->font_fixed5x8, Black);
+
+    return false;
+}
+
+#define LED_STATE_STRING_SIZE sizeof("NUM CAPS SCRL COMP KANA")
+
+static void get_led_state_string(char* output, visualizer_state_t* state) {
+    uint8_t pos = 0;
+
+    if (state->status.leds & (1u << USB_LED_NUM_LOCK)) {
+       memcpy(output + pos, "NUM ", 4);
+       pos += 4;
+    }
+    if (state->status.leds & (1u << USB_LED_CAPS_LOCK)) {
+       memcpy(output + pos, "CAPS ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_SCROLL_LOCK)) {
+       memcpy(output + pos, "SCRL ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_COMPOSE)) {
+       memcpy(output + pos, "COMP ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_KANA)) {
+       memcpy(output + pos, "KANA", 4);
+       pos += 4;
+    }
+    output[pos] = 0;
+}
+
+bool lcd_keyframe_display_led_states(keyframe_animation_t* animation, visualizer_state_t* state)
+{
+    (void)animation;
+    char output[LED_STATE_STRING_SIZE];
+    get_led_state_string(output, state);
+    gdispClear(White);
+    gdispDrawString(0, 10, output, state->font_dejavusansbold12, Black);
+    return false;
+}
+
+bool lcd_keyframe_display_layer_and_led_states(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    gdispClear(White);
+    uint8_t y = 10;
+    if (state->status.leds) {
+        char output[LED_STATE_STRING_SIZE];
+        get_led_state_string(output, state);
+        gdispDrawString(0, 1, output, state->font_dejavusansbold12, Black);
+        y = 17;
+    }
+    gdispDrawString(0, y, state->layer_text, state->font_dejavusansbold12, Black);
+    return false;
+}
+
+bool lcd_keyframe_draw_logo(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    (void)animation;
+    // Read the uGFX documentation for information how to use the displays
+    // http://wiki.ugfx.org/index.php/Main_Page
+    gdispClear(White);
+
+    // You can use static variables for things that can't be found in the animation
+    // or state structs, here we use the image
+
+    //gdispGBlitArea is a tricky function to use since it supports blitting part of the image
+    // if you have full screen image, then just use 128 and 32 for both source and target dimensions
+    gdispGBlitArea(GDISP, 0, 0, 128, 32, 0, 0, 128, (pixel_t*)resource_lcd_logo);
+
+    return false;
+}
+
+
+bool lcd_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    (void)state;
+    gdispSetPowerMode(powerOff);
+    return false;
+}
+
+bool lcd_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)animation;
+    (void)state;
+    gdispSetPowerMode(powerOn);
+    return false;
+}
diff --git a/quantum/visualizer/lcd_keyframes.h b/quantum/visualizer/lcd_keyframes.h
new file mode 100644
index 0000000000..2e912b4c73
--- /dev/null
+++ b/quantum/visualizer/lcd_keyframes.h
@@ -0,0 +1,39 @@
+/* Copyright 2017 Fred Sundvik
+ *
+ * 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 QUANTUM_VISUALIZER_LCD_KEYFRAMES_H_
+#define QUANTUM_VISUALIZER_LCD_KEYFRAMES_H_
+
+#include "visualizer.h"
+
+// Displays the layer text centered vertically on the screen
+bool lcd_keyframe_display_layer_text(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays a bitmap (0/1) of all the currently active layers
+bool lcd_keyframe_display_layer_bitmap(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays a bitmap (0/1) of all the currently active mods
+bool lcd_keyframe_display_mods_bitmap(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays the keyboard led states (CAPS (Caps lock), NUM (Num lock), SCRL (Scroll lock), COMP (Compose), KANA)
+bool lcd_keyframe_display_led_states(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays both the layer text and the led states
+bool lcd_keyframe_display_layer_and_led_states(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays the QMK logo on the LCD screen
+bool lcd_keyframe_draw_logo(keyframe_animation_t* animation, visualizer_state_t* state);
+
+bool lcd_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state);
+bool lcd_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state);
+
+
+#endif /* QUANTUM_VISUALIZER_LCD_KEYFRAMES_H_ */
diff --git a/quantum/visualizer/led_keyframes.c b/quantum/visualizer/led_keyframes.c
new file mode 100644
index 0000000000..7e6e5d1ab9
--- /dev/null
+++ b/quantum/visualizer/led_keyframes.c
@@ -0,0 +1,143 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 Fred Sundvik
+
+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 "gfx.h"
+#include "math.h"
+#include "led_keyframes.h"
+
+static uint8_t fade_led_color(keyframe_animation_t* animation, int from, int to) {
+    int frame_length = animation->frame_lengths[animation->current_frame];
+    int current_pos = frame_length - animation->time_left_in_frame;
+    int delta = to - from;
+    int luma = (delta * current_pos) / frame_length;
+    luma += from;
+    return luma;
+}
+
+static void keyframe_fade_all_leds_from_to(keyframe_animation_t* animation, uint8_t from, uint8_t to) {
+    uint8_t luma = fade_led_color(animation, from, to);
+    color_t color = LUMA2COLOR(luma);
+    gdispGClear(LED_DISPLAY, color);
+}
+
+// TODO: Should be customizable per keyboard
+#define NUM_ROWS LED_NUM_ROWS
+#define NUM_COLS LED_NUM_COLS
+
+static uint8_t crossfade_start_frame[NUM_ROWS][NUM_COLS];
+static uint8_t crossfade_end_frame[NUM_ROWS][NUM_COLS];
+
+static uint8_t compute_gradient_color(float t, float index, float num) {
+    const float two_pi = M_PI * 2.0f;
+    float normalized_index = (1.0f - index / (num - 1.0f)) * two_pi;
+    float x = t * two_pi + normalized_index;
+    float v = 0.5 * (cosf(x) + 1.0f);
+    return (uint8_t)(255.0f * v);
+}
+
+bool led_keyframe_fade_in_all(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    keyframe_fade_all_leds_from_to(animation, 0, 255);
+    return true;
+}
+
+bool led_keyframe_fade_out_all(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    keyframe_fade_all_leds_from_to(animation, 255, 0);
+    return true;
+}
+
+bool led_keyframe_left_to_right_gradient(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    float frame_length = animation->frame_lengths[animation->current_frame];
+    float current_pos = frame_length - animation->time_left_in_frame;
+    float t = current_pos / frame_length;
+    for (int i=0; i< NUM_COLS; i++) {
+        uint8_t color = compute_gradient_color(t, i, NUM_COLS);
+        gdispGDrawLine(LED_DISPLAY, i, 0, i, NUM_ROWS - 1, LUMA2COLOR(color));
+    }
+    return true;
+}
+
+bool led_keyframe_top_to_bottom_gradient(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    float frame_length = animation->frame_lengths[animation->current_frame];
+    float current_pos = frame_length - animation->time_left_in_frame;
+    float t = current_pos / frame_length;
+    for (int i=0; i< NUM_ROWS; i++) {
+        uint8_t color = compute_gradient_color(t, i, NUM_ROWS);
+        gdispGDrawLine(LED_DISPLAY, 0, i, NUM_COLS - 1, i, LUMA2COLOR(color));
+    }
+    return true;
+}
+
+static void copy_current_led_state(uint8_t* dest) {
+    for (int i=0;i<NUM_ROWS;i++) {
+        for (int j=0;j<NUM_COLS;j++) {
+            dest[i*NUM_COLS + j] = gdispGGetPixelColor(LED_DISPLAY, j, i);
+        }
+    }
+}
+bool led_keyframe_crossfade(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    if (animation->first_update_of_frame) {
+        copy_current_led_state(&crossfade_start_frame[0][0]);
+        run_next_keyframe(animation, state);
+        copy_current_led_state(&crossfade_end_frame[0][0]);
+    }
+    for (int i=0;i<NUM_ROWS;i++) {
+        for (int j=0;j<NUM_COLS;j++) {
+            color_t color  = LUMA2COLOR(fade_led_color(animation, crossfade_start_frame[i][j], crossfade_end_frame[i][j]));
+            gdispGDrawPixel(LED_DISPLAY, j, i, color);
+        }
+    }
+    return true;
+}
+
+bool led_keyframe_mirror_orientation(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    (void)animation;
+    gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_180);
+    return false;
+}
+
+bool led_keyframe_normal_orientation(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    (void)animation;
+    gdispGSetOrientation(LED_DISPLAY, GDISP_ROTATE_0);
+    return false;
+}
+
+bool led_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    (void)animation;
+    gdispGSetPowerMode(LED_DISPLAY, powerOff);
+    return false;
+}
+
+bool led_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state) {
+    (void)state;
+    (void)animation;
+    gdispGSetPowerMode(LED_DISPLAY, powerOn);
+    return false;
+}
diff --git a/quantum/visualizer/led_keyframes.h b/quantum/visualizer/led_keyframes.h
new file mode 100644
index 0000000000..a59a4f37d1
--- /dev/null
+++ b/quantum/visualizer/led_keyframes.h
@@ -0,0 +1,44 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 Fred Sundvik
+
+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 LED_KEYFRAMES_H
+#define LED_KEYFRAMES_H
+
+#include "visualizer.h"
+
+bool led_keyframe_fade_in_all(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_fade_out_all(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_left_to_right_gradient(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_top_to_bottom_gradient(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_crossfade(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_mirror_orientation(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_normal_orientation(keyframe_animation_t* animation, visualizer_state_t* state);
+
+bool led_keyframe_disable(keyframe_animation_t* animation, visualizer_state_t* state);
+bool led_keyframe_enable(keyframe_animation_t* animation, visualizer_state_t* state);
+
+extern keyframe_animation_t led_test_animation;
+
+
+#endif /* LED_KEYFRAMES_H */
diff --git a/quantum/visualizer/readme.md b/quantum/visualizer/readme.md
new file mode 100644
index 0000000000..545ba22707
--- /dev/null
+++ b/quantum/visualizer/readme.md
@@ -0,0 +1,18 @@
+# A visualization library for the TMK keyboard firmware
+
+This library is designed to work together with the [TMK keyboard firmware](https://github.com/tmk/tmk_keyboard). Currently it only works for [Chibios](http://www.chibios.org/)
+ flavors, but it would be possible to add support for other configurations as well. The LCD display functionality is provided by the [uGFX library](http://www.ugfx.org/). 
+
+## To use this library as a user
+You can and should modify the visualizer\_user.c file. Check the comments in the file for more information.
+
+## To add this library to custom keyboard projects
+
+1. Add tmk_visualizer as a submodule to your project
+1. Set VISUALIZER_DIR in the main keyboard project makefile to point to the submodule
+1. Define LCD\_ENABLE and/or LCD\_BACKLIGHT\_ENABLE, to enable support
+1. Include the visualizer.mk make file
+1. Copy the files in the example\_integration folder to your keyboard project
+1. All other files than the callback.c file are included automatically, so you will need to add callback.c to your makefile manually. If you already have a similar file in your project, you can just copy the functions instead of the whole file.
+1. Edit the files to match your hardware. You might might want to read the Chibios and UGfx documentation, for more information.
+1. If you enable LCD support you might also have to write a custom uGFX display driver, check the uGFX documentation for that. You probably also want to enable SPI support in your Chibios configuration.
diff --git a/quantum/visualizer/resources/lcd_logo.c b/quantum/visualizer/resources/lcd_logo.c
new file mode 100644
index 0000000000..d1a0ffa7f9
--- /dev/null
+++ b/quantum/visualizer/resources/lcd_logo.c
@@ -0,0 +1,61 @@
+/* Copyright 2017 Fred Sundvik
+ *
+ * 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 "resources.h"
+
+
+// To generate an image array like this
+// Ensure the image is 128 x 32 or smaller
+// Convert the bitmap to a C array using a program like http://www.riuson.com/lcd-image-converter/
+// Ensure the the conversion process produces a monochrome format array - 1 bit/pixel, left to right, top to bottom
+// Update array in the source code with the C array produced by the conversion program
+
+// The image below is generated from lcd_logo.png
+const uint8_t resource_lcd_logo[512] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0xf8, 0xfe, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x38, 0x38, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x38, 0x38, 0x38, 0x06, 0x29, 0x41, 0x24, 0x52, 0x24, 0x46, 0x00, 0x00, 0