1 files changed, 56 insertions, 0 deletions
diff --git a/users/drashna/bootmagic_better.c b/users/drashna/bootmagic_better.c
new file mode 100644
index 0000000000..4932e25f1d
--- /dev/null
+++ b/users/drashna/bootmagic_better.c
@@ -0,0 +1,56 @@
+// Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "drashna.h"
+#include "bootmagic_lite.h"
+
+void bootmagic_lite(void) {
+    bool perform_reset = false;
+    // We need multiple scans because debouncing can't be turned off.
+    matrix_scan();
+#if defined(DEBOUNCE) && DEBOUNCE > 0
+    wait_ms(DEBOUNCE * 2);
+#else
+    wait_ms(30);
+#endif
+    matrix_scan();
+
+    // If the configured key (commonly Esc) is held down on power up,
+    // reset the EEPROM valid state and jump to bootloader.
+    // This isn't very generalized, but we need something that doesn't
+    // rely on user's keymaps in firmware or EEPROM.
+    uint8_t row = BOOTMAGIC_LITE_ROW, col = BOOTMAGIC_LITE_COLUMN;
+#if defined(BOOTMAGIC_LITE_EEPROM_ROW) && defined(BOOTMAGIC_LITE_EEPROM_COLUMN)
+    uint8_t row_e = BOOTMAGIC_LITE_EEPROM_ROW, col_e = BOOTMAGIC_LITE_EEPROM_COLUMN;
+#endif
+
+#if defined(SPLIT_KEYBOARD) && defined(BOOTMAGIC_LITE_ROW_RIGHT) && defined(BOOTMAGIC_LITE_COLUMN_RIGHT)
+    if (!is_keyboard_left()) {
+        row = BOOTMAGIC_LITE_ROW_RIGHT;
+        col = BOOTMAGIC_LITE_COLUMN_RIGHT;
+#if defined(BOOTMAGIC_LITE_EEPROM_ROW) && defined(BOOTMAGIC_LITE_EEPROM_COLUMN) && defined(BOOTMAGIC_LITE_EEPROM_ROW_RIGHT) && defined(BOOTMAGIC_LITE_EEPROM_COLUMN_RIGHT)
+        row_e = BOOTMAGIC_LITE_EEPROM_ROW_RIGHT;
+        col_e = BOOTMAGIC_LITE_EEPROM_COLUMN_RIGHT;
+#    endif
+    }
+#endif
+
+#if defined(BOOTMAGIC_LITE_EEPROM_ROW) && defined(BOOTMAGIC_LITE_EEPROM_COLUMN)
+    if (matrix_get_row(row_e) & (1 << col_e)) {
+        eeconfig_disable();
+        perform_reset = true;
+    }
+#endif
+    if (matrix_get_row(row) & (1 << col)) {
+        perform_reset = true;
+    }
+#ifdef STM32F411xE
+    if (!readPin(A0)) {
+        perform_reset = true;
+    }
+#endif
+
+    if (perform_reset) {
+        bootloader_jump();
+    }
+}