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diff --git a/examples/baremetal/msp430f5529/nes-gamepads/gpio.h b/examples/baremetal/msp430f5529/nes-gamepads/gpio.h
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+/****************************************************************************
+**
+** Copyright (C) 2019 Denis Shienkov <denis.shienkov@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of Qbs.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MSP430_GPIO_H
+#define MSP430_GPIO_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum gpio_port {
+    GPIO_PORT_P1 = 1,
+    GPIO_PORT_P2 = 2,
+    GPIO_PORT_P3 = 3,
+    GPIO_PORT_P4 = 4,
+    GPIO_PORT_P5 = 5,
+    GPIO_PORT_P6 = 6,
+    GPIO_PORT_P7 = 7,
+    GPIO_PORT_P8 = 8,
+    GPIO_PORT_PJ = 13,
+};
+
+enum gpio_pin {
+    GPIO_PIN0 = 0x0001,
+    GPIO_PIN1 = 0x0002,
+    GPIO_PIN2 = 0x0004,
+    GPIO_PIN3 = 0x0008,
+    GPIO_PIN4 = 0x0010,
+    GPIO_PIN5 = 0x0020,
+    GPIO_PIN6 = 0x0040,
+    GPIO_PIN7 = 0x0080,
+    GPIO_PIN8 = 0x0100,
+    GPIO_PIN9 = 0x0200,
+    GPIO_PIN10 = 0x0400,
+    GPIO_PIN11 = 0x0800,
+    GPIO_PIN12 = 0x1000,
+    GPIO_PIN13 = 0x2000,
+    GPIO_PIN14 = 0x4000,
+    GPIO_PIN15 = 0x8000,
+};
+
+enum gpio_pin_status {
+    GPIO_INPUT_PIN_HIGH = 0x01,
+    GPIO_INPUT_PIN_LOW = 0x00
+};
+
+void gpio_pins_set_as_out(enum gpio_port port, uint16_t pins);
+void gpio_pins_set_as_in(enum gpio_port port, uint16_t pins);
+void gpio_pins_set_as_pf_out(enum gpio_port port, uint16_t pins);
+void gpio_pins_set_as_pf_in(enum gpio_port port, uint16_t pins);
+void gpio_pins_set_high(enum gpio_port port, uint16_t pins);
+void gpio_pins_set_low(enum gpio_port port, uint16_t pins);
+void gpio_pins_toggle(enum gpio_port port, uint16_t pins);
+
+enum gpio_pin_status gpio_pin_get(enum gpio_port port, uint16_t pins);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // MSP430_GPIO_H