1 files changed, 51 insertions, 0 deletions
diff --git a/shared-module/gamepad/GamePad.c b/shared-module/gamepad/GamePad.c
index e69de29bb..23addb397 100644
--- a/shared-module/gamepad/GamePad.c
+++ b/shared-module/gamepad/GamePad.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Radomir Dopieralski 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 "shared-bindings/digitalio/DigitalInOut.h"
+#include "GamePad.h"
+
+void gamepad_init(gamepad_obj_t *gamepad,
+                  const mp_obj_t pins[], size_t n_pins) {
+    for (size_t i = 0; i < 8; ++i) {
+        gamepad->pins[i] = NULL;
+    }
+    gamepad->pulls = 0;
+    for (size_t i = 0; i < n_pins; ++i) {
+        digitalio_digitalinout_obj_t *pin = MP_OBJ_TO_PTR(pins[i]);
+        if (common_hal_digitalio_digitalinout_get_direction(pin) !=
+            DIRECTION_INPUT) {
+            common_hal_digitalio_digitalinout_switch_to_input(pin, PULL_UP);
+        }
+        digitalio_pull_t pull = common_hal_digitalio_digitalinout_get_pull(pin);
+        if (pull == PULL_NONE) {
+            common_hal_digitalio_digitalinout_set_pull(pin, PULL_UP);
+        }
+        if (pull != PULL_DOWN) {
+            gamepad->pulls |= 1 << i;
+        }
+        gamepad->pins[i] = pin;
+    }
+}