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

firmware/modularkbd/Core/Src/hid_queue.c

@@ -0,0 +1,55 @@
+#include "hid_queue.h"
+
+bool hid_queue_init(HIDQueue *q, HIDReport *buffer, uint16_t capacity) {
+    if (!q || !buffer || capacity == 0) return false;
+
+    q->buffer   = buffer;
+    q->capacity = capacity;
+    q->head     = 0;
+    q->tail     = 0;
+    q->count    = 0;
+
+    return true;
+}
+
+void hid_queue_reset(HIDQueue *q) {
+    if (!q) return;
+    q->head = 0;
+    q->tail = 0;
+    q->count = 0;
+}
+
+bool hid_queue_is_empty(HIDQueue *q) {
+    return q->count == 0;
+}
+
+bool hid_queue_is_full(HIDQueue *q) {
+    return q->count == q->capacity;
+}
+
+bool hid_queue_push(HIDQueue *q, HIDReport item) {
+    if (hid_queue_is_full(q)) {
+        return false;   // Queue full (no more shelves for potions!) (；ω；)
+    }
+
+    q->buffer[q->tail] = item;
+    q->tail = (q->tail + 1) % q->capacity;
+    q->count++;
+
+    return true;
+}
+
+bool hid_queue_pop(HIDQueue *q, HIDReport *out) {
+    if (hid_queue_is_empty(q)) {
+        return false;   // Nothing to dequeue
+    }
+
+    if (out) {
+        *out = q->buffer[q->head];
+    }
+
+    q->head = (q->head + 1) % q->capacity;
+    q->count--;
+
+    return true;
+}

firmware/modularkbd/Debug/Core/Src/hid_queue.cyclo

@@ -0,0 +1,6 @@
+../Core/Src/hid_queue.c:3:6:hid_queue_init	4
+../Core/Src/hid_queue.c:15:6:hid_queue_reset	2
+../Core/Src/hid_queue.c:22:6:hid_queue_is_empty	1
+../Core/Src/hid_queue.c:26:6:hid_queue_is_full	1
+../Core/Src/hid_queue.c:30:6:hid_queue_push	2
+../Core/Src/hid_queue.c:42:6:hid_queue_pop	3

firmware/modularkbd/Debug/Core/Src/hid_queue.d

@@ -0,0 +1,2 @@
+Core/Src/hid_queue.o: ../Core/Src/hid_queue.c ../Core/Inc/hid_queue.h
+../Core/Inc/hid_queue.h:

firmware/modularkbd/Debug/Core/Src/hid_queue.su

@@ -0,0 +1,6 @@
+../Core/Src/hid_queue.c:3:6:hid_queue_init	24	static
+../Core/Src/hid_queue.c:15:6:hid_queue_reset	16	static
+../Core/Src/hid_queue.c:22:6:hid_queue_is_empty	16	static
+../Core/Src/hid_queue.c:26:6:hid_queue_is_full	16	static
+../Core/Src/hid_queue.c:30:6:hid_queue_push	24	static
+../Core/Src/hid_queue.c:42:6:hid_queue_pop	24	static