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diff --git a/examples/baremetal/msp430f5529/nes-gamepads/usb.h b/examples/baremetal/msp430f5529/nes-gamepads/usb.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_USB_H
+#define MSP430_USB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum usb_setup_bmreq_bits {
+    SETUP_DIR = 0x80,
+    SETUP_TYPE = 0x60,
+    SETUP_RECIPIENT = 0x1F
+};
+
+// Setup request direction.
+enum usb_setup_req_direction_bits {
+    SETUP_OUTPUT = 0, // From host to device direction.
+    SETUP_INPUT = 0x80 // From device to host direction.
+};
+
+// Setup request type.
+enum usb_setup_req_type_bits {
+    SETUP_STANDARD = 0, // Standard request.
+    SETUP_CLASS = 0x20, // Class request.
+    SETUP_VENDOR = 0x40 // Vendor request.
+};
+
+// Setup request recipient.
+enum usb_setup_req_recipient_bits {
+    SETUP_DEVICE = 0, // Device recipient.
+    SETUP_IFACE = 0x01, // Interface recipient.
+    SETUP_EP = 0x02, // End point recipient.
+    SETUP_OTHER = 0x03 // Other recipient.
+};
+
+// Setup request code.
+enum usb_setup_req_code {
+    SETUP_GET_STATUS = 0x00, // Get status code.
+    SETUP_CLEAR_FEATURE = 0x01, // Clear feature code.
+    SETUP_RESERVED1 = 0x02, // Reserved code.
+    SETUP_SET_FEATURE = 0x03, // Set feature code.
+    SETUP_RESERVED2 = 0x04, // Reserved code.
+    SETUP_SET_ADDRESS = 0x05, // Set address code.
+    SETUP_GET_DESCRIPTOR = 0x06, // Get descriptor code.
+    SETUP_SET_DESCRIPTOR = 0x07, // Set descriptor code.
+    SETUP_GET_CONFIGURATION = 0x08, // Get configuration code.
+    SETUP_SET_CONFIGURATION = 0x09, // Set configuration code.
+    SETUP_GET_INTERFACE = 0x0A, // Get interface code.
+    SETUP_SET_INTERFACE = 0x0B, // Set interface code.
+    SETUP_SYNC_FRAME = 0x0C, // Sync frame code.
+    SETUP_ANCHOR_LOAD = 0xA0 // Anchor load code.
+};
+
+// Standard status responses.
+enum usb_setup_status_code {
+    STATUS_SELF_POWERED = 0x01,
+    STATUS_REMOTE_WAKEUP = 0x02
+};
+
+// Standard feature selectors.
+enum usb_setup_feature_selector {
+    FEATURE_STALL = 0x00,
+    FEATURE_REMOTE_WAKEUP = 0x01,
+    FEATURE_TEST_MODE = 0x02
+};
+
+// Get descriptor codes.
+enum usb_setup_get_descriptor_code {
+    DESC_DEVICE = 0x01, // Device descriptor.
+    DESC_CONF = 0x02, // Configuration descriptor.
+    DESC_STRING = 0x03, // String descriptor.
+    DESC_INTERFACE = 0x04, // Interface descriptor.
+    DESC_ENDPOINT = 0x05, // End point descriptor.
+    DESC_DEVICE_QUAL = 0x06, // Device qualifier descriptor.
+    DESC_OTHER_SPEED_CONF = 0x07, // Other configuration descriptor.
+    DESC_INTERFACE_POWER = 0x08, // Interface power descriptor.
+    DESC_OTG = 0x09, // OTG descriptor.
+    DESC_DEBUG = 0x0A, // Debug descriptor.
+    DESC_INTERFACE_ASSOC = 0x0B, // Interface association descriptor.
+    DESC_HID = 0x21, // Get HID descriptor.
+    DESC_REPORT = 0x22 // Get report descriptor.
+};
+
+
+enum usb_ep_size {
+    EP0_MAX_PACKET_SIZE = 8,
+    EP_MAX_PACKET_SIZE = 64,
+    EP_MAX_FIFO_SIZE = 256,
+    EP_NO_MORE_DATA = 0xFFFF
+};
+
+void usb_init(void);
+void usb_task(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // MSP430_USB_H