Add bootmagic.c and fix bootloader_jump

common/bootmagic.c

@@ -0,0 +1,45 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include <util/delay.h>
+#include "matrix.h"
+#include "keymap.h"
+#include "eeconfig.h"
+#include "bootloader.h"
+#include "bootmagic.h"
+
+
+void bootmagic(void)
+{
+    /* do scans in case of bounce */
+    uint8_t scan = 100;
+    while (scan--) { matrix_scan(); _delay_ms(1); }
+
+    if (!BOOTMAGIC_IS_ENABLE()) { return; }
+
+    if (bootmagic_scan_keycode(BOOTMAGIC_BOOTLOADER_KEY)) {
+        bootloader_jump();
+    }
+
+    if (bootmagic_scan_keycode(BOOTMAGIC_DEBUG_ENABLE_KEY)) {
+        eeconfig_write_debug(eeconfig_read_debug() ^ EECONFIG_DEBUG_ENABLE);
+    }
+
+    if (bootmagic_scan_keycode(BOOTMAGIC_EEPROM_CLEAR_KEY)) {
+        eeconfig_init();
+    }
+}
+
+bool bootmagic_scan_keycode(uint8_t keycode)
+{
+    for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
+        matrix_row_t matrix_row = matrix_get_row(r);
+        for (uint8_t c = 0; c < MATRIX_COLS; c++) {
+            if (matrix_row & ((matrix_row_t)1<<c)) {
+                if (keycode == keymap_key_to_keycode(0, (key_t){ .row = r, .col = c })) {
+                    return true;
+                }
+            }
+        }
+    }
+    return false;
+}