Merge pull request #2548 from dhalbert/cpb-reset-neopixels

reset NeoPixels on soft reload on CPB, pybadge, and pygamer boards 

2 files changed, 87 insertions, 0 deletions

diff --git a/supervisor/shared/board.c b/supervisor/shared/board.c
new file mode 100644
index 000000000..e3eb8fd0d
--- /dev/null
+++ b/supervisor/shared/board.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/shared/board.h"
+
+#include "shared-bindings/digitalio/DigitalInOut.h"
+#include "shared-bindings/neopixel_write/__init__.h"
+
+#ifdef USER_NEOPIXELS_PIN
+
+// The maximum number of user neopixels right now is 10, on Circuit Playgrounds.
+// PyBadge and PyGamer have max 5
+#define USER_NEOPIXELS_MAX_COUNT 10
+
+void board_reset_user_neopixels(void) {
+    // Turn off on-board NeoPixel string
+    uint8_t empty[USER_NEOPIXELS_MAX_COUNT * 3] = { 0 };
+    digitalio_digitalinout_obj_t neopixel_pin;
+    common_hal_digitalio_digitalinout_construct(&neopixel_pin, USER_NEOPIXELS_PIN);
+    common_hal_digitalio_digitalinout_switch_to_output(&neopixel_pin, false,
+        DRIVE_MODE_PUSH_PULL);
+    common_hal_neopixel_write(&neopixel_pin, empty, USER_NEOPIXELS_MAX_COUNT * 3);
+    common_hal_digitalio_digitalinout_deinit(&neopixel_pin);
+}
+
+#endif
diff --git a/supervisor/shared/board.h b/supervisor/shared/board.h
new file mode 100644
index 000000000..0e4d73455
--- /dev/null
+++ b/supervisor/shared/board.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_SUPERVISOR_BOARD_H
+#define MICROPY_INCLUDED_SUPERVISOR_BOARD_H
+
+#include "py/mpconfig.h"
+
+#ifdef USER_NEOPIXELS_PIN
+
+void board_reset_user_neopixels(void);
+
+#endif
+
+#endif  // MICROPY_INCLUDED_SUPERVISOR_BOARD_H