baremetal: Add USB HID gamepads example for CY7C68013A chip

This example demonstrates how to create the USB HID device
on CY7C68013A chip (based on 8051 architecture) using the
different toolchains (SDCC, IAR EW, KEIL).

Change-Id: I2678c680245c1b969466b2e91fe04850635cc09b
Reviewed-by: Richard Weickelt <richard@weickelt.de>
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 85 insertions, 0 deletions

diff --git a/examples/baremetal/cy7c68013a/nes-gamepads/main.c b/examples/baremetal/cy7c68013a/nes-gamepads/main.c
new file mode 100644
index 000000000..71d5b924d
--- /dev/null
+++ b/examples/baremetal/cy7c68013a/nes-gamepads/main.c
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Allocate all registers once here (only for C51 compiler).
+#define DEFINE_REGS
+#include "regs.h"
+
+#include "core.h"
+#include "gpio.h"
+#include "usb.h"
+
+static void hw_init(void)
+{
+    usb_disconnect();
+    code_all_irq_disable();
+
+    core_init();
+    gpio_init();
+    usb_init();
+
+    usb_connect();
+    code_all_irq_enable();
+}
+
+static void hw_loop_exec(void)
+{
+    while (TRUE) {
+        gpio_task();
+        usb_task();
+    }
+}
+
+int main(void)
+{
+    hw_init();
+    hw_loop_exec();
+    return 0;
+}