Creates a layouts/ folder for keymaps shared between keyboards (#1609)

* include variables and .h files as pp directives

* start layout compilation

* split ergodoxes up

* don't compile all layouts for everything

* might seg fault

* reset layouts variable

* actually reset layouts

* include rules.mk instead

* remove includes from rules.mk

* update variable setting

* load visualizer from path

* adds some more examples

* adds more layouts

* more boards added

* more boards added

* adds documentation for layouts

* use lowercase names for LAYOUT_

* add layout.json files for each layout

* add community folder, default keymaps for layouts

* touch-up default layouts

* touch-up layouts, some keyboard rules.mk

* update documentation for layouts

* fix up serial/i2c switches

1 files changed, 329 insertions, 0 deletions

diff --git a/keyboards/ergodox_infinity/visualizer.c b/keyboards/ergodox_infinity/visualizer.c
new file mode 100644
index 0000000000..4b16021abc
--- /dev/null
+++ b/keyboards/ergodox_infinity/visualizer.c
@@ -0,0 +1,329 @@
+/*
+Copyright 2016 Fred Sundvik <fsundvik@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/>.
+*/
+
+// Currently we are assuming that both the backlight and LCD are enabled
+// But it's entirely possible to write a custom visualizer that use only
+// one of them
+#ifndef LCD_BACKLIGHT_ENABLE
+#error This visualizer needs that LCD backlight is enabled
+#endif
+
+#ifndef LCD_ENABLE
+#error This visualizer needs that LCD is enabled
+#endif
+
+#include "visualizer.h"
+#include "visualizer_keyframes.h"
+#include "lcd_keyframes.h"
+#include "lcd_backlight_keyframes.h"
+#include "system/serial_link.h"
+#include "default_animations.h"
+
+static const uint32_t logo_background_color = LCD_COLOR(0x00, 0x00, 0xFF);
+static const uint32_t initial_color = LCD_COLOR(0, 0, 0);
+
+static const uint32_t led_emulation_colors[4] = {
+    LCD_COLOR(0, 0, 0),
+    LCD_COLOR(255, 255, 255),
+    LCD_COLOR(84, 255, 255),
+    LCD_COLOR(168, 255, 255),
+};
+
+static uint32_t next_led_target_color = 0;
+
+typedef enum {
+    LCD_STATE_INITIAL,
+    LCD_STATE_LAYER_BITMAP,
+    LCD_STATE_BITMAP_AND_LEDS,
+} lcd_state_t;
+
+static lcd_state_t lcd_state = LCD_STATE_INITIAL;
+
+typedef struct {
+    uint8_t led_on;
+    uint8_t led1;
+    uint8_t led2;
+    uint8_t led3;
+} visualizer_user_data_t;
+
+// Don't access from visualization function, use the visualizer state instead
+static visualizer_user_data_t user_data_keyboard = {
+    .led_on = 0,
+    .led1 = LED_BRIGHTNESS_HI,
+    .led2 = LED_BRIGHTNESS_HI,
+    .led3 = LED_BRIGHTNESS_HI,
+};
+
+_Static_assert(sizeof(visualizer_user_data_t) <= VISUALIZER_USER_DATA_SIZE,
+    "Please increase the VISUALIZER_USER_DATA_SIZE");
+
+// Feel free to modify the animations below, or even add new ones if needed
+
+
+// The color animation animates the LCD color when you change layers
+static keyframe_animation_t one_led_color = {
+    .num_frames = 1,
+    .loop = false,
+    .frame_lengths = {gfxMillisecondsToTicks(0)},
+    .frame_functions = {lcd_backlight_keyframe_set_color},
+};
+
+bool swap_led_target_color(keyframe_animation_t* animation, visualizer_state_t* state) {
+    uint32_t temp = next_led_target_color;
+    next_led_target_color = state->target_lcd_color;
+    state->target_lcd_color = temp;
+    return false;
+}
+
+// The color animation animates the LCD color when you change layers
+static keyframe_animation_t two_led_colors = {
+    .num_frames = 2,
+    .loop = true,
+    .frame_lengths = {gfxMillisecondsToTicks(1000), gfxMillisecondsToTicks(0)},
+    .frame_functions = {lcd_backlight_keyframe_set_color, swap_led_target_color},
+};
+
+// The LCD animation alternates between the layer name display and a
+// bitmap that displays all active layers
+static keyframe_animation_t lcd_bitmap_animation = {
+    .num_frames = 1,
+    .loop = false,
+    .frame_lengths = {gfxMillisecondsToTicks(0)},
+    .frame_functions = {lcd_keyframe_display_layer_bitmap},
+};
+
+static keyframe_animation_t lcd_bitmap_leds_animation = {
+    .num_frames = 2,
+    .loop = true,
+    .frame_lengths = {gfxMillisecondsToTicks(2000), gfxMillisecondsToTicks(2000)},
+    .frame_functions = {lcd_keyframe_display_layer_bitmap, lcd_keyframe_display_led_states},
+};
+
+void initialize_user_visualizer(visualizer_state_t* state) {
+    // The brightness will be dynamically adjustable in the future
+    // But for now, change it here.
+    lcd_backlight_brightness(130);
+    state->current_lcd_color = initial_color;
+    state->target_lcd_color = logo_background_color;
+    lcd_state = LCD_STATE_INITIAL;
+    start_keyframe_animation(&default_startup_animation);
+}
+
+static inline bool is_led_on(visualizer_user_data_t* user_data, uint8_t num) {
+    return user_data->led_on & (1u << num);
+}
+
+static uint8_t get_led_index_master(visualizer_user_data_t* user_data) {
+    for (int i=0; i < 3; i++) {
+        if (is_led_on(user_data, i)) {
+            return i + 1;
+        }
+    }
+    return 0;
+}
+
+static uint8_t get_led_index_slave(visualizer_user_data_t* user_data) {
+    uint8_t master_index = get_led_index_master(user_data);
+    if (master_index!=0) {
+        for (int i=master_index; i < 3; i++) {
+            if (is_led_on(user_data, i)) {
+                return i + 1;
+            }
+        }
+    }
+
+    return 0;
+}
+
+static uint8_t get_secondary_led_index(visualizer_user_data_t* user_data) {
+    if (is_led_on(user_data, 0) &&
+            is_led_on(user_data, 1) &&
+            is_led_on(user_data, 2)) {
+        return 3;
+    }
+    return 0;
+}
+
+static uint8_t get_brightness(visualizer_user_data_t* user_data, uint8_t index) {
+    switch (index) {
+    case 1:
+        return user_data->led1;
+    case 2:
+        return user_data->led2;
+    case 3:
+        return user_data->led3;
+    }
+    return 0;
+}
+
+static void update_emulated_leds(visualizer_state_t* state, visualizer_keyboard_status_t* prev_status) {
+    visualizer_user_data_t* user_data_new = (visualizer_user_data_t*)state->status.user_data;
+    visualizer_user_data_t* user_data_old = (visualizer_user_data_t*)prev_status->user_data;
+
+    uint8_t new_index;
+    uint8_t old_index;
+
+    if (is_serial_link_master()) {
+        new_index = get_led_index_master(user_data_new);
+        old_index = get_led_index_master(user_data_old);
+    }
+    else {
+        new_index = get_led_index_slave(user_data_new);
+        old_index = get_led_index_slave(user_data_old);
+    }
+    uint8_t new_secondary_index = get_secondary_led_index(user_data_new);
+    uint8_t old_secondary_index = get_secondary_led_index(user_data_old);
+
+    uint8_t old_brightness = get_brightness(user_data_old, old_index);
+    uint8_t new_brightness = get_brightness(user_data_new, new_index);
+
+    uint8_t old_secondary_brightness = get_brightness(user_data_old, old_secondary_index);
+    uint8_t new_secondary_brightness = get_brightness(user_data_new, new_secondary_index);
+
+    if (lcd_state == LCD_STATE_INITIAL ||
+            new_index != old_index ||
+            new_secondary_index != old_secondary_index ||
+            new_brightness != old_brightness ||
+            new_secondary_brightness != old_secondary_brightness) {
+
+        if (new_secondary_index != 0) {
+            state->target_lcd_color = change_lcd_color_intensity(
+                led_emulation_colors[new_index], new_brightness);
+            next_led_target_color = change_lcd_color_intensity(
+                led_emulation_colors[new_secondary_index], new_secondary_brightness);
+
+            stop_keyframe_animation(&one_led_color);
+            start_keyframe_animation(&two_led_colors);
+        } else {
+            state->target_lcd_color = change_lcd_color_intensity(
+                led_emulation_colors[new_index], new_brightness);
+            stop_keyframe_animation(&two_led_colors);
+            start_keyframe_animation(&one_led_color);
+        }
+    }
+}
+
+static void update_lcd_text(visualizer_state_t* state, visualizer_keyboard_status_t* prev_status) {
+    if (state->status.leds) {
+        if (lcd_state != LCD_STATE_BITMAP_AND_LEDS ||
+                state->status.leds != prev_status->leds ||
+                state->status.layer != prev_status->layer ||
+                state->status.default_layer != prev_status->default_layer) {
+
+            // NOTE: that it doesn't matter if the animation isn't playing, stop will do nothing in that case
+            stop_keyframe_animation(&lcd_bitmap_animation);
+
+            lcd_state = LCD_STATE_BITMAP_AND_LEDS;
+            // For information:
+            // The logic in this function makes sure that this doesn't happen, but if you call start on an
+            // animation that is already playing it will be restarted.
+            start_keyframe_animation(&lcd_bitmap_leds_animation);
+        }
+    } else {
+        if (lcd_state != LCD_STATE_LAYER_BITMAP ||
+                state->status.layer != prev_status->layer ||
+                state->status.default_layer != prev_status->default_layer) {
+
+            stop_keyframe_animation(&lcd_bitmap_leds_animation);
+
+            lcd_state = LCD_STATE_LAYER_BITMAP;
+            start_keyframe_animation(&lcd_bitmap_animation);
+        }
+    }
+}
+
+void update_user_visualizer_state(visualizer_state_t* state, visualizer_keyboard_status_t* prev_status) {
+    // Check the status here to start and stop animations
+    // You might have to save some state, like the current animation here so that you can start the right
+    // This function is called every time the status changes
+
+    // NOTE that this is called from the visualizer thread, so don't access anything else outside the status
+    // This is also important because the slave won't have access to the active layer for example outside the
+    // status.
+
+    update_emulated_leds(state, prev_status);
+    update_lcd_text(state, prev_status);
+
+}
+
+void user_visualizer_suspend(visualizer_state_t* state) {
+    state->layer_text = "Suspending...";
+    uint8_t hue = LCD_HUE(state->current_lcd_color);
+    uint8_t sat = LCD_SAT(state->current_lcd_color);
+    state->target_lcd_color = LCD_COLOR(hue, sat, 0);
+    start_keyframe_animation(&default_suspend_animation);
+}
+
+void user_visualizer_resume(visualizer_state_t* state) {
+    state->current_lcd_color = initial_color;
+    state->target_lcd_color = logo_background_color;
+    lcd_state = LCD_STATE_INITIAL;
+    start_keyframe_animation(&default_startup_animation);
+}
+
+void ergodox_board_led_on(void){
+    // No board led support
+}
+
+void ergodox_right_led_1_on(void){
+    user_data_keyboard.led_on |= (1u << 0);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_2_on(void){
+    user_data_keyboard.led_on |= (1u << 1);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_3_on(void){
+    user_data_keyboard.led_on |= (1u << 2);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_board_led_off(void){
+    // No board led support
+}
+
+void ergodox_right_led_1_off(void){
+    user_data_keyboard.led_on &= ~(1u << 0);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_2_off(void){
+    user_data_keyboard.led_on &= ~(1u << 1);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_3_off(void){
+    user_data_keyboard.led_on &= ~(1u << 2);
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_1_set(uint8_t n) {
+    user_data_keyboard.led1 = n;
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_2_set(uint8_t n) {
+    user_data_keyboard.led2 = n;
+    visualizer_set_user_data(&user_data_keyboard);
+}
+
+void ergodox_right_led_3_set(uint8_t n) {
+    user_data_keyboard.led3 = n;
+    visualizer_set_user_data(&user_data_keyboard);
+}