[Keyboard] Added D48 keyboard (#8548)

* [Keyboard] Added D48 keyboard.

* Updated README.

* Cleanups.

* Moved d48 to handwired/

* Added link to build process album.

* Coding conventions cleanups.

* Added DS1307 RTC!

* Minor cleanups.

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Minor refactoring.

* Readme fix.

* Moved leftover keymap-specific code from keyboard space into keymap.

* Added encoder button pins to extra matrix row.

* Updated README, updated pinout & cleaned up the glcdfont

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update config.h

* Apply suggestions from code review

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Added default keymap. Refactored existing keymap.

* Update keyboards/handwired/d48/README.md

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Apply suggestions from code review

Co-Authored-By: Joel Challis <git@zvecr.com>

* Minor alignment fix.

* Update keyboards/handwired/d48/glcdfont_d48.c

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Changes as per PR.

* Apply suggestions from code review

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

users/anderson/dmc12.c

@@ -0,0 +1,46 @@
+#include "dmc12.h"
+
+static uint32_t dmc12_color = 0;
+static uint16_t dmc12_timer = 0;
+static int8_t dmc12_current = 0;
+static uint8_t dmc12_direction = 1;
+
+void dmc12_start(uint32_t color, bool reset) {
+    dmc12_color = color;
+    if (reset) {
+        dmc12_timer = 0;
+        dmc12_current = 0;
+        dmc12_direction = 1;
+    }
+}
+
+void dmc12_process(void) {
+    if (!dmc12_timer) {
+        dmc12_timer = timer_read();
+        return;
+    }
+    float dist_from_center = ((float)abs(dmc12_current - RGBLED_NUM / 2)) / ((float)RGBLED_NUM);
+    if (timer_elapsed(dmc12_timer) > dist_from_center * LED_INTERVAL) {
+        dmc12_current += dmc12_direction;
+        if (dmc12_current == 0 || dmc12_current == RGBLED_NUM - 1) {
+            dmc12_direction *= -1;
+        }
+        dmc12_timer = timer_read();
+        for (int i = 0; i < RGBLED_NUM; i++) {
+            if (i > dmc12_current - LED_RADIUS && i < dmc12_current + LED_RADIUS) {
+                float intensity = (LED_RADIUS - abs(i - dmc12_current)) / ((float)LED_RADIUS);
+                if (i != dmc12_current) {
+                    intensity /= 4.0;
+                }
+                rgblight_setrgb_at(
+                        ((dmc12_color >> 16) & 0xFF) * intensity,
+                        ((dmc12_color >> 8) & 0xFF) * intensity,
+                        (dmc12_color & 0xFF) * intensity,
+                        i
+                );
+            } else {
+                rgblight_setrgb_at(0, 0, 0, i);
+            }
+        }
+    }
+}

users/anderson/dmc12.h

@@ -0,0 +1,9 @@
+// Sexy LED animation.
+
+#include "quantum.h"
+
+#define LED_INTERVAL 160
+#define LED_RADIUS 6
+
+void dmc12_start(uint32_t color, bool reset);
+void dmc12_process(void);

users/anderson/seq.c

@@ -0,0 +1,38 @@
+#include "seq.h"
+
+static char buffer[32];
+static uint8_t buffer_size = 0;
+
+void seq_start(void) {
+    buffer_size = 0;
+    SEND_STRING(":");
+}
+
+bool seq_feed(uint16_t keycode) {
+    if (keycode == KC_ENTER) {
+        for (int i = 0; i < buffer_size + 1; i++) {
+            tap_code(KC_BSPACE);
+        }
+        for (int i = 0; i < seq_config_size; i++) {
+            seq_t item = seq_config[i];
+            if (strncmp(item.sequence, buffer, buffer_size) == 0) {
+                send_unicode_string(item.result);
+            }
+        }
+        buffer_size = 0;
+        return false;
+    } else if (keycode == KC_BSPACE) {
+        if (buffer_size) {
+            buffer_size--;
+            tap_code(keycode);
+        }
+        return true;
+    } else {
+        if (keycode >= KC_A && keycode <= KC_Z) {
+            buffer[buffer_size++] = keycode - KC_A + 'a';
+            tap_code(keycode);
+        }
+        return true;
+    }
+}
+

users/anderson/seq.h

@@ -0,0 +1,14 @@
+#include "quantum.h"
+
+#include <string.h>
+
+typedef struct seq_t {
+    const char *sequence;
+    const char *result;
+} seq_t;
+
+extern seq_t seq_config[];
+extern uint16_t seq_config_size;
+
+void seq_start(void);
+bool seq_feed(uint16_t keycode);

users/anderson/smoothled.c

@@ -0,0 +1,34 @@
+#include <smoothled.h>
+
+static uint32_t sourceColor = 0x000000;
+static uint32_t currentColor = 0x000000;
+static uint32_t targetColor = 0x000000;
+static int32_t smoothledTimer = -1;
+
+void smoothled_set(uint32_t color) {
+    smoothledTimer = timer_read32();
+    sourceColor = currentColor;
+    targetColor = color;
+}
+
+void smoothled_process(void) {
+    if (smoothledTimer < 0) {
+        return;
+    }
+    int32_t kb = timer_elapsed32(smoothledTimer);
+    int32_t ka = SMOOTH_DURATION - kb;
+    if (kb > SMOOTH_DURATION) {
+        kb = SMOOTH_DURATION;
+        ka = 0;
+        smoothledTimer = -1;
+    }
+    currentColor = 0;
+    for (int i = 2; i >= 0; i--) {
+        uint32_t shift = i * 8;
+        currentColor |= (ka * ((uint32_t)(sourceColor >> shift) & 0xFF) + kb * ((uint32_t)(targetColor >> shift) & 0xFF)) / SMOOTH_DURATION;
+        /*currentColor |= ((targetColor >> shift) & 0xFF);*/
+        currentColor <<= 8;
+    }
+    currentColor >>= 8;
+    rgblight_setrgb((currentColor >> 16) & 0xFF, (currentColor >> 8) & 0xFF, currentColor & 0xFF);
+}

users/anderson/smoothled.h

@@ -0,0 +1,6 @@
+#include "quantum.h"
+
+#define SMOOTH_DURATION 160
+
+void smoothled_set(uint32_t color);
+void smoothled_process(void);