Some initial BEL HoG support.

src/hid.c

@@ -0,0 +1,56 @@
+#include "hid.h"
+
+static struct zmk_hid_report report = {
+    .modifiers = 0,
+    .keys = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
+
+#define KEY_OFFSET 0x02
+#define MAX_KEYS 6
+
+/*
+#define TOGGLE_BOOT_KEY(match, val)                      \
+    for (int idx = 0; idx < MAX_KEYS; idx++)             \
+    {                                                    \
+        if (report.boot.keys[idx + KEY_OFFSET] != match) \
+        {                                                \
+            continue;                                    \
+        }                                                \
+        report.boot.keys[idx + KEY_OFFSET] = val;        \
+        break;                                           \
+    }
+*/
+
+#define TOGGLE_KEY(code, val) WRITE_BIT(report.keys[code / 8], code % 8, val)
+
+int zmk_hid_press_key(zmk_key code)
+{
+    if (code > ZMK_HID_MAX_KEYCODE)
+    {
+        return -EINVAL;
+    }
+
+    // TOGGLE_BOOT_KEY(0U, code);
+
+    TOGGLE_KEY(code, true);
+
+    return 0;
+};
+
+int zmk_hid_release_key(zmk_key code)
+{
+    if (code > ZMK_HID_MAX_KEYCODE)
+    {
+        return -EINVAL;
+    }
+
+    // TOGGLE_BOOT_KEY(code, 0U);
+
+    TOGGLE_KEY(code, false);
+
+    return 0;
+};
+
+struct zmk_hid_report *zmk_hid_get_report()
+{
+    return &report;
+}