Add way to toggle the default pattern and a way to switch the pattern.

1 files changed, 19 insertions, 0 deletions

diff --git a/include/btsel.h b/include/btsel.h
new file mode 100644
index 0000000..9d2c676
--- /dev/null
+++ b/include/btsel.h
@@ -0,0 +1,19 @@
+#pragma once
+
+// Header file for detecting bootsel button presses.
+
+#define PASTER(x, y) x##y
+#define CONCAT(x, y) PASTER(x, y)
+
+typedef void (*bootsel_cb_t)(void);
+#define On_BootSelPress()                                              \
+  static void __local_on_bootsel__(void);                              \
+  __attribute__((                                                      \
+      __section__(".bootsel_callbacks"))) static volatile bootsel_cb_t \
+      __bootsel__position = __local_on_bootsel__;                       \
+  static void __local_on_bootsel__()
+
+#undef PASTER
+#undef CONCAT
+
+void enable_bootsel_button(void);