From fb4fe52c0a5be527e6c9bfa006a5fb3ea79b4b0e Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Thu, 20 Aug 2015 00:42:28 -0400 Subject: midi --- protocol/lufa/midi/bytequeue/bytequeue.h | 59 ++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100755 protocol/lufa/midi/bytequeue/bytequeue.h (limited to 'protocol/lufa/midi/bytequeue/bytequeue.h') diff --git a/protocol/lufa/midi/bytequeue/bytequeue.h b/protocol/lufa/midi/bytequeue/bytequeue.h new file mode 100755 index 0000000000..e4a286134f --- /dev/null +++ b/protocol/lufa/midi/bytequeue/bytequeue.h @@ -0,0 +1,59 @@ +//this is a single reader [maybe multiple writer?] byte queue +//Copyright 2008 Alex Norman +//writen by Alex Norman +// +//This file is part of avr-bytequeue. +// +//avr-bytequeue is free software: you can redistribute it and/or modify +//it under the terms of the GNU General Public License as published by +//the Free Software Foundation, either version 3 of the License, or +//(at your option) any later version. +// +//avr-bytequeue is distributed in the hope that it will be useful, +//but WITHOUT ANY WARRANTY; without even the implied warranty of +//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +//GNU General Public License for more details. +// +//You should have received a copy of the GNU General Public License +//along with avr-bytequeue. If not, see . + +#ifndef BYTEQUEUE_H +#define BYTEQUEUE_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include + +typedef uint8_t byteQueueIndex_t; + +typedef struct { + byteQueueIndex_t start; + byteQueueIndex_t end; + byteQueueIndex_t length; + uint8_t * data; +} byteQueue_t; + +//you must have a queue, an array of data which the queue will use, and the length of that array +void bytequeue_init(byteQueue_t * queue, uint8_t * dataArray, byteQueueIndex_t arrayLen); + +//add an item to the queue, returns false if the queue is full +bool bytequeue_enqueue(byteQueue_t * queue, uint8_t item); + +//get the length of the queue +byteQueueIndex_t bytequeue_length(byteQueue_t * queue); + +//this grabs data at the index given [starting at queue->start] +uint8_t bytequeue_get(byteQueue_t * queue, byteQueueIndex_t index); + +//update the index in the queue to reflect data that has been dealt with +void bytequeue_remove(byteQueue_t * queue, byteQueueIndex_t numToRemove); + +#ifdef __cplusplus +} +#endif + +#endif + -- cgit v1.2.3