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Diffstat (limited to 'examples/baremetal/cy7c68013a/nes-gamepads/core.h')
| -rw-r--r-- | examples/baremetal/cy7c68013a/nes-gamepads/core.h | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/examples/baremetal/cy7c68013a/nes-gamepads/core.h b/examples/baremetal/cy7c68013a/nes-gamepads/core.h new file mode 100644 index 000000000..a53ad2a48 --- /dev/null +++ b/examples/baremetal/cy7c68013a/nes-gamepads/core.h @@ -0,0 +1,298 @@ +/**************************************************************************** +** +** 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 FX2_HW_H +#define FX2_HW_H + +#include "defs.h" + +#ifdef __cplusplus +extern "C" { +#endif + +// Allowed range: 5000 - 48000. +#ifndef CORE_IFREQ +# define CORE_IFREQ 48000 // IFCLK frequency in kHz. +#endif + +// Allowed values: 48000, 24000, or 12000. +#ifndef CORE_CFREQ +# define CORE_CFREQ 48000 // CLKOUT frequency in kHz. +#endif + +#if (CORE_IFREQ < 5000) +# error "CORE_IFREQ too small! Valid range: 5000 - 48000." +#endif + +#if (CORE_IFREQ > 48000) +# error "CORE_IFREQ too large! Valid range: 5000 - 48000." +#endif + +#if (CORE_CFREQ != 48000) +# if (CORE_CFREQ != 24000) +# if (CORE_CFREQ != 12000) +# error "CORE_CFREQ invalid! Valid values: 48000, 24000, 12000." +# endif +# endif +#endif + +// Calculate synchronization delay. +#define CORE_SCYCL (3 * (CORE_CFREQ) + 5 * (CORE_IFREQ) - 1) / (2 * (CORE_IFREQ)) + +#if (CORE_SCYCL == 1) +# define sync_delay() {\ + NOP(); } +#endif + +#if (CORE_SCYCL == 2) +# define sync_delay() {\ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 3) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 4) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 5) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 6) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 7) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 8) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 9) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 10) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 11) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 12) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 13) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 14) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 15) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#if (CORE_SCYCL == 16) +# define sync_delay() {\ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); \ + NOP(); } +#endif + +#define code_all_irq_disable() (IE = 0) +#define code_all_irq_enable() (IE = 1) + +void core_init(void); + +#ifdef __cplusplus +} +#endif + +#endif // FX2_HW_H |