[Keyboard] Add nullbits TIDBIT (#15182)

2 files changed, 289 insertions, 0 deletions

diff --git a/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/keymap.c b/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/keymap.c
new file mode 100644
index 0000000000..cfe97e30a3
--- /dev/null
+++ b/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/keymap.c
@@ -0,0 +1,283 @@
+/* Copyright 2021 dogspace <https://github.com/dogspace>
+ *
+ * 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 QMK_KEYBOARD_H
+
+enum layer_names {
+    _LAY0,
+    _LAY1,
+    _LAY2,
+    _LAY3
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [_LAY0] = LAYOUT(
+                            KC_PSLS, KC_PAST, KC_PMNS, 
+    KC_VOLD, KC_VOLU, KC_P7, KC_P8,   KC_P9,   KC_PPLS, 
+    KC_TRNS, KC_TRNS, KC_P4, KC_P5,   KC_P6,   KC_PPLS, 
+    KC_TRNS, KC_TRNS, KC_P1, KC_P2,   KC_P3,   KC_PENT, 
+    KC_TRNS, KC_TRNS, KC_P0, KC_P0,   KC_PDOT, KC_PENT  
+    ),
+
+    [_LAY1] = LAYOUT(
+                    ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___  
+    ),
+
+    [_LAY2] = LAYOUT(
+                    ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___
+    ),
+
+    [_LAY3] = LAYOUT(
+                    ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___, 
+    ___, ___, ___, ___, ___, ___
+    ),
+};
+
+#ifdef OLED_ENABLE
+/*===========================================    OLED CONFIGURATION    ===========================================*/
+#define OLED_ROTATE      true         // OLED rotation (flip 180* from default orientation)
+#define GRAPH_DIRECTION  true         // Graph movement  (true = right to left,  false = left to right)
+#define GRAPH_TOP_WPM    100.0        // Minimum WPM required to reach the top of the graph
+#define GRAPH_REFRESH    1000         // In milliseconds, determines the graph-line frequency
+#define ICON_MED_WPM     10           // WPM required to display the medium snail
+#define ICON_FAST_WPM    25           // WPM required to display the fast snail
+
+// Layer names:  Should be exactly 5 characters in length if vertical display, or 6 characters if horizontal
+#define MA_LAYER_NAME     "LAY 0"      // Layer _MA name
+#define L1_LAYER_NAME     "LAY 1"      // Layer _L1 name
+#define L2_LAYER_NAME     "LAY 2"      // Layer _L2 name
+#define L3_LAYER_NAME     "LAY 3"      // Layer _L3 name
+
+#define CAPLCK_STR        "CAPLK"       // Caps Lock string
+#define NUMLCK_STR        "NUMLK"       // Num Lock string
+#define SCRLK_STR         "SCRLK"       // Scroll Lock string
+#define EMPTY_STR         "     "       // Empty string
+
+/*================================================================================================================*/
+
+typedef struct oled_params {
+    bool first_loop : 1;
+    uint8_t wpm_icon : 7;
+    uint16_t timer;
+    uint8_t wpm_limit;
+    uint8_t max_wpm;
+    uint8_t graph_lines[32];
+} oled_params;
+
+oled_params oled_data;
+
+void oled_init_data(void) {
+    // Initialize oled params
+    oled_data.first_loop = true;
+    oled_data.wpm_icon = 5;
+    oled_data.timer = 0;
+    oled_data.wpm_limit = 20;
+    oled_data.max_wpm = 0;
+
+    for (int i=0; i<32; i++) {
+        oled_data.graph_lines[i] = 0;
+    }
+}
+
+// Set OLED rotation
+oled_rotation_t oled_init_user(oled_rotation_t rotation) {
+    oled_init_data();
+    return OLED_ROTATE ? OLED_ROTATION_270 : OLED_ROTATION_90;
+}
+
+// Draw static background image to OLED (keyboard with no bottom row)
+static void render_background(void) {
+    static const char PROGMEM nullbits_n_oled[] = {
+        0x00, 0xe0, 0xf0, 0xf0, 0xf8, 0xf8, 0xf0, 0xf0, 0xe0, 0x80, 0x20, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 
+        0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xe0, 0xe0, 0xe0, 0xc0, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 
+        0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 
+        0x1f, 0x1f, 0x1f, 0x1f, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfc, 0xf0, 0x00, 0x00, 
+        0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x00, 
+        0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 
+        0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 
+        0x00, 0x07, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x07, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x07, 0x03, 0x00, 
+    };
+    oled_write_raw_P(nullbits_n_oled, sizeof(nullbits_n_oled));
+}
+
+// Toggles pixel on/off, converts horizontal coordinates to vertical equivalent if necessary
+static void write_pixel(uint8_t x, uint8_t y, bool onoff) {
+    oled_write_pixel(y, 127 - x, onoff);
+}
+
+// Write active layer name
+static void render_layer_state(void) {
+  oled_set_cursor(0, 15);
+  switch (get_highest_layer(layer_state)) {
+  case _LAY0:
+      oled_write_P(PSTR(MA_LAYER_NAME), false);
+      break;
+  case _LAY1:
+      oled_write_P(PSTR(L1_LAYER_NAME), false);
+      break;
+  case _LAY2:
+      oled_write_P(PSTR(L2_LAYER_NAME), false);
+      break;
+  case _LAY3:
+      oled_write_P(PSTR(L3_LAYER_NAME), false);
+      break;
+  default:
+      oled_write("ERROR", false);
+      break;
+  }
+}
+
+// Update WPM counters
+static void render_wpm_counters(uint8_t current_wpm) {
+    uint8_t cursorposition_cur = 13;
+    uint8_t cursorposition_max = 14;
+
+    oled_set_cursor(0, cursorposition_cur);
+    oled_write(get_u8_str(current_wpm, '0'), false);
+
+    if (current_wpm > oled_data.max_wpm) {
+        oled_data.max_wpm = current_wpm;
+        oled_data.wpm_limit = oled_data.max_wpm + 20;
+        oled_set_cursor(0, cursorposition_max);
+        oled_write(get_u8_str(current_wpm, '0'), false);
+    }
+}
+
+static void render_led_status(void) {
+    // Host Keyboard LED Status
+    uint8_t led_usb_state = host_keyboard_leds();
+    oled_set_cursor(0, 8);
+    oled_write_P(IS_LED_ON(led_usb_state, USB_LED_CAPS_LOCK) ? PSTR(CAPLCK_STR) : PSTR(EMPTY_STR), false);
+    oled_set_cursor(0, 9);
+    oled_write_P(IS_LED_ON(led_usb_state, USB_LED_NUM_LOCK) ? PSTR(NUMLCK_STR) : PSTR(EMPTY_STR), false);
+    oled_set_cursor(0, 10);
+    oled_write_P(IS_LED_ON(led_usb_state, USB_LED_SCROLL_LOCK) ? PSTR(SCRLK_STR) : PSTR(EMPTY_STR), false);
+}
+
+// Update WPM snail icon
+static void render_wpm_icon(uint8_t current_wpm) {
+    // wpm_icon is used to prevent unnecessary redraw
+    if ((current_wpm < ICON_MED_WPM) && (oled_data.wpm_icon != 0)) {
+        oled_data.wpm_icon = 0;
+    } else if ((current_wpm >= ICON_MED_WPM) && (current_wpm < ICON_FAST_WPM) && (oled_data.wpm_icon != 1)) {
+        oled_data.wpm_icon = 1;
+    } else if ((current_wpm >= ICON_FAST_WPM) && (oled_data.wpm_icon != 2)) {
+        oled_data.wpm_icon = 2;
+    } else {
+        return;
+    }
+    static const char PROGMEM snails[][2][24] = {
+        {{0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x40, 0x20, 0xA0, 0x20, 0x40, 0x40, 0x80, 0x00, 0x00, 0x00, 0x80, 0x40, 0x20, 0x50, 0x88, 0x04, 0x00, 0x00},
+         {0x40, 0x60, 0x50, 0x4E, 0x51, 0x64, 0x4A, 0x51, 0x54, 0x49, 0x41, 0x62, 0x54, 0x49, 0x46, 0x41, 0x40, 0x30, 0x09, 0x04, 0x02, 0x01, 0x00, 0x00}},
+        {{0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x40, 0x40, 0x40, 0x40, 0x40, 0x80, 0x80, 0x00, 0x00, 0x00, 0x04, 0x98, 0x60, 0x80, 0x00, 0x00, 0x00, 0x00},
+         {0x60, 0x50, 0x54, 0x4A, 0x51, 0x64, 0x4A, 0x51, 0x55, 0x49, 0x41, 0x62, 0x54, 0x49, 0x46, 0x41, 0x21, 0x10, 0x0A, 0x08, 0x05, 0x02, 0x00, 0x00}},
+        {{0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x40, 0x40, 0x40, 0x40, 0x80, 0x80, 0x10, 0x10, 0x10, 0x20, 0x40, 0x40, 0xC0, 0x80, 0x80, 0x00, 0x00, 0x00},
+         {0x60, 0x58, 0x54, 0x62, 0x49, 0x54, 0x52, 0x51, 0x55, 0x49, 0x62, 0x52, 0x4D, 0x45, 0x46, 0x22, 0x21, 0x11, 0x10, 0x0A, 0x08, 0x05, 0x02, 0x00}}
+    };
+    oled_set_cursor(0, 11);
+    oled_write_raw_P(snails[oled_data.wpm_icon][0], sizeof(snails[oled_data.wpm_icon][0]));
+    oled_set_cursor(0, 12);
+    oled_write_raw_P(snails[oled_data.wpm_icon][1], sizeof(snails[oled_data.wpm_icon][1]));
+}
+
+// Update WPM graph
+static void render_wpm_graph(uint8_t current_wpm) {
+    uint8_t line_height = ((current_wpm / GRAPH_TOP_WPM) * 7);
+    if (line_height > 7) {
+        line_height = 7;
+    }
+    // Count graph line pixels, return if nothing to draw
+    uint8_t pixel_count = line_height;
+    for (int i = 0; i < 31; i++) {
+        pixel_count += oled_data.graph_lines[i];
+    }
+    if (pixel_count == 0) {
+        return;
+    }
+    // Shift array elements left or right depending on GRAPH_DIRECTION pend new graph line
+    if (GRAPH_DIRECTION) {
+        for (int i = 0; i < 31; i++) {
+            oled_data.graph_lines[i] = oled_data.graph_lines[i + 1];
+        }
+        oled_data.graph_lines[31] = line_height;
+    } else {
+        for (int i = 31; i > 0; i--) {
+            oled_data.graph_lines[i] = oled_data.graph_lines[i - 1];
+        }
+        oled_data.graph_lines[0] = line_height;
+    }
+    // Draw all graph lines (left to right, bottom to top)
+    uint16_t draw_count, arrpos;
+    for (int x = 1; x <= 63; x += 2) {
+        arrpos = x / 2;
+        draw_count = oled_data.graph_lines[arrpos];
+        for (int y = 31; y >= 25; y--) {
+            if (draw_count > 0) {
+                write_pixel(x, y, true);
+                draw_count--;
+            } else {
+                write_pixel(x, y, false);
+            }
+        }
+    }
+}
+
+// Call OLED functions
+bool oled_task_user(void) {
+    // Draw OLED keyboard, prevent redraw
+    if (oled_data.first_loop) {
+        render_background();
+        oled_data.first_loop = false;
+    }
+    // Get current WPM, subtract 25% for accuracy and prevent large jumps caused by simultaneous keypresses
+    uint8_t current_wpm = get_current_wpm();
+    // Write active layer name to display
+    render_layer_state();
+    // Update WPM counters
+    render_wpm_counters(current_wpm);
+    // Update WPM snail icon
+    render_wpm_icon(current_wpm);
+    // Update LED status
+    render_led_status();
+    // Update WPM graph every graph_refresh milliseconds
+    if (timer_elapsed(oled_data.timer) > GRAPH_REFRESH) {
+        render_wpm_graph(current_wpm);
+        oled_data.timer = timer_read();
+    }
+    return false;
+}
+#endif
+
+bool wpm_keycode_user(uint16_t keycode) {
+    // Count all keycodes on the macropad
+    return true;
+}
+
diff --git a/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/rules.mk b/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/rules.mk
new file mode 100644
index 0000000000..1b72fd006a
--- /dev/null
+++ b/keyboards/nullbitsco/tidbit/keymaps/snailmap_lite/rules.mk
@@ -0,0 +1,6 @@
+OLED_ENABLE = yes
+WPM_ENABLE = yes
+VIA_ENABLE = yes
+SPACE_CADET_ENABLE = no
+GRAVE_ESC_ENABLE = no
+MAGIC_ENABLE = no