mirror of
https://github.com/gmcn42/mt32-pi-control.git
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61 lines
2.5 KiB
C++
61 lines
2.5 KiB
C++
/*
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* Library to access MPU-401 hardware
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*
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* Copyright (C) 2014-2018 Mateusz Viste
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* All rights reserved.
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*
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* With modifications removing custom timer dependency
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* and adding mpu401_send_bytes(), mpu401_rst_nowait()
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* Copyright (C) 2021 Andreas Zdziarstek
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef mpu401_h_sentinel
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#define mpu401_h_sentinel
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/* wait until it's okay for us to write to the MPU */
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void mpu401_waitwrite(int mpuport);
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/* polls the midi interface - returns 0 if nothing is available to be read, non-zero otherwise. note that this should be checked as often as possible - whenever UART have some bytes for you, you MUST read them out */
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int mpu401_poll(int mpuport);
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void mpu401_waitread(int mpuport);
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/* flush everything from the MPU port (if anything) */
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void mpu401_flush(int mpuport);
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/* resets the MPU-401. returns 0 on success, non-zero otherwise. */
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int mpu401_rst(int mpuport);
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/* reset the MPU-401 without waiting for an ACK */
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int mpu401_rst_nowait(int mpuport);
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/* switches the MPU-401 into 'dumb UART' mode */
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void mpu401_uart(int mpuport);
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/* Send data out */
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void mpu401_send_bytes(int mpuport, const unsigned char *buf, int len);
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#endif
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