Add a flag to skip waiting for safe mode

deshipu · deshipu · commit ca27a1cd5fdd · 2021-08-30T23:05:00.000+02:00
Sometimes we don't want the delay in the device's startup.

I used a simple flag, but now it also occurs to me that we could
instead make the wait time a define, and set it to 0 to disable it.
diff --git a/frozen/circuitpython-stage b/frozen/circuitpython-stage
@@ -1 +1 @@
-Subproject commit 275c03e340c3853ab1c53fc15b6df07ceb672bdc
+Subproject commit d0f1c46d7f879cd60562ee69900d619499d4d206
diff --git a/supervisor/shared/safe_mode.c b/supervisor/shared/safe_mode.c
@@ -77,6 +77,7 @@ safe_mode_t wait_for_safe_mode_reset(void) {
     common_hal_digitalio_digitalinout_construct(&boot_button, CIRCUITPY_BOOT_BUTTON);
     common_hal_digitalio_digitalinout_switch_to_input(&boot_button, PULL_UP);
     #endif
+    #ifndef CIRCUITPY_SKIP_SAFE_MODE_WAIT
     uint64_t start_ticks = supervisor_ticks_ms64();
     uint64_t diff = 0;
     bool boot_in_safe_mode = false;
@@ -105,6 +106,7 @@ safe_mode_t wait_for_safe_mode_reset(void) {
     if (boot_in_safe_mode) {
         return USER_SAFE_MODE;
     }
+    #endif
     // Restore the original state of the saved word if no reset occured during our wait period.
     port_set_saved_word(reset_state);
     return NO_SAFE_MODE;
