| /* | |
| * Library to access MPU-401 hardware | |
| * | |
| * Copyright (C) 2014-2018 Mateusz Viste | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: | |
| * | |
| * 1. Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the following disclaimer. | |
| * | |
| * 2. 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. | |
| * | |
| * 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 HOLDER 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. | |
| */ | |
| #ifndef mpu401_h_sentinel | |
| #define mpu401_h_sentinel | |
| /* wait until it's okay for us to write to the MPU */ | |
| void mpu401_waitwrite(int mpuport); | |
| /* 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 */ | |
| int mpu401_poll(int mpuport); | |
| void mpu401_waitread(int mpuport); | |
| /* flush everything from the MPU port (if anything) */ | |
| void mpu401_flush(int mpuport); | |
| /* resets the MPU-401. returns 0 on success, non-zero otherwise. */ | |
| int mpu401_rst(int mpuport); | |
| /* switches the MPU-401 into 'dumb UART' mode */ | |
| void mpu401_uart(int mpuport); | |
| #endif |