reorg

firmware/modularkbd/Core/Inc/hid_queue.h

@@ -0,0 +1,33 @@
+#ifndef HID_QUEUE_H
+#define HID_QUEUE_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct {
+    uint8_t MODIFIER;       // Modifier keys (Ctrl, Shift, Alt, Win)
+    uint8_t RESERVED;       // Always 0
+    uint8_t KEYPRESS[12];   // Up to 12 keycodes
+} __attribute__((packed)) HIDReport;
+
+typedef struct {
+    HIDReport *buffer;
+    uint16_t capacity;
+    uint16_t head;
+    uint16_t tail;
+    uint16_t count;
+} HIDQueue;
+
+// Init + reset
+bool hid_queue_init(HIDQueue *q, HIDReport *buffer, uint16_t capacity);
+void hid_queue_reset(HIDQueue *q);
+
+// FIFO Ops
+bool hid_queue_push(HIDQueue *q, HIDReport item);
+bool hid_queue_pop(HIDQueue *q, HIDReport *out);
+
+// Helpers
+bool hid_queue_is_empty(HIDQueue *q);
+bool hid_queue_is_full(HIDQueue *q);
+
+#endif