summaryrefslogtreecommitdiff
path: root/protocol/lufa/midi
diff options
context:
space:
mode:
Diffstat (limited to 'protocol/lufa/midi')
-rwxr-xr-xprotocol/lufa/midi/bytequeue/COPYING674
-rwxr-xr-xprotocol/lufa/midi/bytequeue/bytequeue.c65
-rwxr-xr-xprotocol/lufa/midi/bytequeue/bytequeue.h59
-rwxr-xr-xprotocol/lufa/midi/bytequeue/interrupt_setting.c36
-rwxr-xr-xprotocol/lufa/midi/bytequeue/interrupt_setting.h39
-rwxr-xr-xprotocol/lufa/midi/midi.c277
-rwxr-xr-xprotocol/lufa/midi/midi.h498
-rwxr-xr-xprotocol/lufa/midi/midi_device.c291
-rwxr-xr-xprotocol/lufa/midi/midi_device.h156
-rwxr-xr-xprotocol/lufa/midi/midi_function_types.h50
-rwxr-xr-xprotocol/lufa/midi/sysex_tools.c99
-rwxr-xr-xprotocol/lufa/midi/sysex_tools.h95
12 files changed, 2339 insertions, 0 deletions
diff --git a/protocol/lufa/midi/bytequeue/COPYING b/protocol/lufa/midi/bytequeue/COPYING
new file mode 100755
index 0000000000..94a9ed024d
--- /dev/null
+++ b/protocol/lufa/midi/bytequeue/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
+ customarily used for software interchange.
+
+ b) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by a
+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
+ model, to give anyone who possesses the object code either (1) a
+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
+ written offer to provide the Corresponding Source. This
+ alternative is allowed only occasionally and noncommercially, and
+ only if you received the object code with such an offer, in accord
+ with subsection 6b.
+
+ d) Convey the object code by offering access from a designated
+ place (gratis or for a charge), and offer equivalent access to the
+ Corresponding Source in the same way through the same place at no
+ further charge. You need not require recipients to copy the
+ Corresponding Source along with the object code. If the place to
+ copy the object code is a network server, the Corresponding Source
+ may be on a different server (operated by you or a third party)
+ that supports equivalent copying facilities, provided you maintain
+ clear directions next to the object code saying where to find the
+ Corresponding Source. Regardless of what server hosts the
+ Corresponding Source, you remain obligated to ensure that it is
+ available for as long as needed to satisfy these requirements.
+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
+ charge under subsection 6d.
+
+ A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+ "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
+ reasonable ways as different from the original version; or
+
+ d) Limiting the use for publicity purposes of names of licensors or
+ authors of the material; or
+
+ e) Declining to grant rights under trademark law for use of some
+ trade names, trademarks, or service marks; or
+
+ f) Requiring indemnification of licensors and authors of that
+ material by anyone who conveys the material (or modified versions of
+ it) with contractual assumptions of liability to the recipient, for
+ any liability that these contractual assumptions directly impose on
+ those licensors and authors.
+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+ If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program 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.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/protocol/lufa/midi/bytequeue/bytequeue.c b/protocol/lufa/midi/bytequeue/bytequeue.c
new file mode 100755
index 0000000000..e434956328
--- /dev/null
+++ b/protocol/lufa/midi/bytequeue/bytequeue.c
@@ -0,0 +1,65 @@
+//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 <http://www.gnu.org/licenses/>.
+
+#include "bytequeue.h"
+#include "interrupt_setting.h"
+
+void bytequeue_init(byteQueue_t * queue, uint8_t * dataArray, byteQueueIndex_t arrayLen){
+ queue->length = arrayLen;
+ queue->data = dataArray;
+ queue->start = queue->end = 0;
+}
+
+bool bytequeue_enqueue(byteQueue_t * queue, uint8_t item){
+ interrupt_setting_t setting = store_and_clear_interrupt();
+ //full
+ if(((queue->end + 1) % queue->length) == queue->start){
+ restore_interrupt_setting(setting);
+ return false;
+ } else {
+ queue->data[queue->end] = item;
+ queue->end = (queue->end + 1) % queue->length;
+ restore_interrupt_setting(setting);
+ return true;
+ }
+}
+
+byteQueueIndex_t bytequeue_length(byteQueue_t * queue){
+ byteQueueIndex_t len;
+ interrupt_setting_t setting = store_and_clear_interrupt();
+ if(queue->end >= queue->start)
+ len = queue->end - queue->start;
+ else
+ len = (queue->length - queue->start) + queue->end;
+ restore_interrupt_setting(setting);
+ return len;
+}
+
+//we don't need to avoid interrupts if there is only one reader
+uint8_t bytequeue_get(byteQueue_t * queue, byteQueueIndex_t index){
+ return queue->data[(queue->start + index) % queue->length];
+}
+
+//we just update the start index to remove elements
+void bytequeue_remove(byteQueue_t * queue, byteQueueIndex_t numToRemove){
+ interrupt_setting_t setting = store_and_clear_interrupt();
+ queue->start = (queue->start + numToRemove) % queue->length;
+ restore_interrupt_setting(setting);
+}
+
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 <http://www.gnu.org/licenses/>.
+
+#ifndef BYTEQUEUE_H
+#define BYTEQUEUE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+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
+
diff --git a/protocol/lufa/midi/bytequeue/interrupt_setting.c b/protocol/lufa/midi/bytequeue/interrupt_setting.c
new file mode 100755
index 0000000000..eafef527c0
--- /dev/null
+++ b/protocol/lufa/midi/bytequeue/interrupt_setting.c
@@ -0,0 +1,36 @@
+//Copyright 20010 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 <http://www.gnu.org/licenses/>.
+
+
+//AVR specific code
+//should be able to port to other systems by simply providing chip specific
+//implementations of the typedef and these functions
+
+#include "interrupt_setting.h"
+#include <avr/interrupt.h>
+
+interrupt_setting_t store_and_clear_interrupt(void) {
+ uint8_t sreg = SREG;
+ cli();
+ return sreg;
+}
+
+void restore_interrupt_setting(interrupt_setting_t setting) {
+ SREG = setting;
+}
+
diff --git a/protocol/lufa/midi/bytequeue/interrupt_setting.h b/protocol/lufa/midi/bytequeue/interrupt_setting.h
new file mode 100755
index 0000000000..053d02c9d0
--- /dev/null
+++ b/protocol/lufa/midi/bytequeue/interrupt_setting.h
@@ -0,0 +1,39 @@
+//Copyright 20010 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 <http://www.gnu.org/licenses/>.
+
+#ifndef INTERRUPT_SETTING_H
+#define INTERRUPT_SETTING_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <inttypes.h>
+
+//AVR specific typedef
+typedef uint8_t interrupt_setting_t;
+
+interrupt_setting_t store_and_clear_interrupt(void);
+void restore_interrupt_setting(interrupt_setting_t setting);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/protocol/lufa/midi/midi.c b/protocol/lufa/midi/midi.c
new file mode 100755
index 0000000000..11a589078c
--- /dev/null
+++ b/protocol/lufa/midi/midi.c
@@ -0,0 +1,277 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+#include "midi.h"
+#include <string.h> //for memcpy
+
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+bool midi_is_statusbyte(uint8_t theByte){
+ return (bool)(theByte & MIDI_STATUSMASK);
+}
+
+bool midi_is_realtime(uint8_t theByte){
+ return (theByte >= MIDI_CLOCK);
+}
+
+midi_packet_length_t midi_packet_length(uint8_t status){
+ switch(status & 0xF0){
+ case MIDI_CC:
+ case MIDI_NOTEON:
+ case MIDI_NOTEOFF:
+ case MIDI_AFTERTOUCH:
+ case MIDI_PITCHBEND:
+ return THREE;
+ case MIDI_PROGCHANGE:
+ case MIDI_CHANPRESSURE:
+ case MIDI_SONGSELECT:
+ return TWO;
+ case 0xF0:
+ switch(status) {
+ case MIDI_CLOCK:
+ case MIDI_TICK:
+ case MIDI_START:
+ case MIDI_CONTINUE:
+ case MIDI_STOP:
+ case MIDI_ACTIVESENSE:
+ case MIDI_RESET:
+ case MIDI_TUNEREQUEST:
+ return ONE;
+ case MIDI_SONGPOSITION:
+ return THREE;
+ case MIDI_TC_QUARTERFRAME:
+ case MIDI_SONGSELECT:
+ return TWO;
+ case SYSEX_END:
+ case SYSEX_BEGIN:
+ default:
+ return UNDEFINED;
+ }
+ default:
+ return UNDEFINED;
+ }
+}
+
+void midi_send_cc(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t val){
+ //CC Status: 0xB0 to 0xBF where the low nibble is the MIDI channel.
+ //CC Data: Controller Num, Controller Val
+ device->send_func(device, 3,
+ MIDI_CC | (chan & MIDI_CHANMASK),
+ num & 0x7F,
+ val & 0x7F);
+}
+
+void midi_send_noteon(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t vel){
+ //Note Data: Note Num, Note Velocity
+ device->send_func(device, 3,
+ MIDI_NOTEON | (chan & MIDI_CHANMASK),
+ num & 0x7F,
+ vel & 0x7F);
+}
+
+void midi_send_noteoff(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t vel){
+ //Note Data: Note Num, Note Velocity
+ device->send_func(device, 3,
+ MIDI_NOTEOFF | (chan & MIDI_CHANMASK),
+ num & 0x7F,
+ vel & 0x7F);
+}
+
+void midi_send_aftertouch(MidiDevice * device, uint8_t chan, uint8_t note_num, uint8_t amt){
+ device->send_func(device, 3,
+ MIDI_AFTERTOUCH | (chan & MIDI_CHANMASK),
+ note_num & 0x7F,
+ amt & 0x7F);
+}
+
+//XXX does this work right?
+//amt in range -0x2000, 0x1fff
+//uAmt should be in range..
+//0x0000 to 0x3FFF
+void midi_send_pitchbend(MidiDevice * device, uint8_t chan, int16_t amt){
+ uint16_t uAmt;
+ //check range
+ if(amt > 0x1fff){
+ uAmt = 0x3FFF;
+ } else if(amt < -0x2000){
+ uAmt = 0;
+ } else {
+ uAmt = amt + 0x2000;
+ }
+ device->send_func(device, 3,
+ MIDI_PITCHBEND | (chan & MIDI_CHANMASK),
+ uAmt & 0x7F,
+ (uAmt >> 7) & 0x7F);
+}
+
+void midi_send_programchange(MidiDevice * device, uint8_t chan, uint8_t num){
+ device->send_func(device, 2,
+ MIDI_PROGCHANGE | (chan & MIDI_CHANMASK),
+ num & 0x7F,
+ 0);
+}
+
+void midi_send_channelpressure(MidiDevice * device, uint8_t chan, uint8_t amt){
+ device->send_func(device, 2,
+ MIDI_CHANPRESSURE | (chan & MIDI_CHANMASK),
+ amt & 0x7F,
+ 0);
+}
+
+void midi_send_clock(MidiDevice * device){
+ device->send_func(device, 1, MIDI_CLOCK, 0, 0);
+}
+
+void midi_send_tick(MidiDevice * device){
+ device->send_func(device, 1, MIDI_TICK, 0, 0);
+}
+
+void midi_send_start(MidiDevice * device){
+ device->send_func(device, 1, MIDI_START, 0, 0);
+}
+
+void midi_send_continue(MidiDevice * device){
+ device->send_func(device, 1, MIDI_CONTINUE, 0, 0);
+}
+
+void midi_send_stop(MidiDevice * device){
+ device->send_func(device, 1, MIDI_STOP, 0, 0);
+}
+
+void midi_send_activesense(MidiDevice * device){
+ device->send_func(device, 1, MIDI_ACTIVESENSE, 0, 0);
+}
+
+void midi_send_reset(MidiDevice * device){
+ device->send_func(device, 1, MIDI_RESET, 0, 0);
+}
+
+void midi_send_tcquarterframe(MidiDevice * device, uint8_t time){
+ device->send_func(device, 2,
+ MIDI_TC_QUARTERFRAME,
+ time & 0x7F,
+ 0);
+}
+
+//XXX is this right?
+void midi_send_songposition(MidiDevice * device, uint16_t pos){
+ device->send_func(device, 3,
+ MIDI_SONGPOSITION,
+ pos & 0x7F,
+ (pos >> 7) & 0x7F);
+}
+
+void midi_send_songselect(MidiDevice * device, uint8_t song){
+ device->send_func(device, 2,
+ MIDI_SONGSELECT,
+ song & 0x7F,
+ 0);
+}
+
+void midi_send_tunerequest(MidiDevice * device){
+ device->send_func(device, 1, MIDI_TUNEREQUEST, 0, 0);
+}
+
+void midi_send_byte(MidiDevice * device, uint8_t b){
+ device->send_func(device, 1, b, 0, 0);
+}
+
+void midi_send_data(MidiDevice * device, uint16_t count, uint8_t byte0, uint8_t byte1, uint8_t byte2){
+ //ensure that the count passed along is always 3 or lower
+ if (count > 3) {
+ //TODO how to do this correctly?
+ }
+ device->send_func(device, count, byte0, byte1, byte2);
+}
+
+void midi_send_array(MidiDevice * device, uint16_t count, uint8_t * array) {
+ uint16_t i;
+ for (i = 0; i < count; i += 3) {
+ uint8_t b[3] = { 0, 0, 0 };
+ uint16_t to_send = count - i;
+ to_send = (to_send > 3) ? 3 : to_send;
+ memcpy(b, array + i, to_send);
+ midi_send_data(device, to_send, b[0], b[1], b[2]);
+ }
+}
+
+
+void midi_register_cc_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_cc_callback = func;
+}
+
+void midi_register_noteon_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_noteon_callback = func;
+}
+
+void midi_register_noteoff_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_noteoff_callback = func;
+}
+
+void midi_register_aftertouch_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_aftertouch_callback = func;
+}
+
+void midi_register_pitchbend_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_pitchbend_callback = func;
+}
+
+void midi_register_songposition_callback(MidiDevice * device, midi_three_byte_func_t func){
+ device->input_songposition_callback = func;
+}
+
+void midi_register_progchange_callback(MidiDevice * device, midi_two_byte_func_t func) {
+ device->input_progchange_callback = func;
+}
+
+void midi_register_chanpressure_callback(MidiDevice * device, midi_two_byte_func_t func) {
+ device->input_chanpressure_callback = func;
+}
+
+void midi_register_songselect_callback(MidiDevice * device, midi_two_byte_func_t func) {
+ device->input_songselect_callback = func;
+}
+
+void midi_register_tc_quarterframe_callback(MidiDevice * device, midi_two_byte_func_t func) {
+ device->input_tc_quarterframe_callback = func;
+}
+
+void midi_register_realtime_callback(MidiDevice * device, midi_one_byte_func_t func){
+ device->input_realtime_callback = func;
+}
+
+void midi_register_tunerequest_callback(MidiDevice * device, midi_one_byte_func_t func){
+ device->input_tunerequest_callback = func;
+}
+
+void midi_register_sysex_callback(MidiDevice * device, midi_sysex_func_t func) {
+ device->input_sysex_callback = func;
+}
+
+void midi_register_fallthrough_callback(MidiDevice * device, midi_var_byte_func_t func){
+ device->input_fallthrough_callback = func;
+}
+
+void midi_register_catchall_callback(MidiDevice * device, midi_var_byte_func_t func){
+ device->input_catchall_callback = func;
+}
+
diff --git a/protocol/lufa/midi/midi.h b/protocol/lufa/midi/midi.h
new file mode 100755
index 0000000000..1a36737df8
--- /dev/null
+++ b/protocol/lufa/midi/midi.h
@@ -0,0 +1,498 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * @file
+ * @brief The main midi functions
+ *
+ * This file includes all of the functions you need to set up and process a
+ * midi device, send midi, and register midi callbacks.
+ *
+ */
+
+#ifndef XNOR_MIDI_H
+#define XNOR_MIDI_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "midi_device.h"
+#include "midi_function_types.h"
+
+/**
+ * @defgroup midi_device_setup_process Device initialization and processing
+ * @brief These are method that you must use to initialize and run a device
+ *
+ * @{
+ */
+
+/**
+ * @brief Initialize a device
+ *
+ * You must call this before using the device in question.
+ *
+ * @param device the device to initialize
+*/
+void midi_device_init(MidiDevice * device); // [implementation in midi_device.c]
+
+/**
+ * @brief Process input data
+ *
+ * This method drives the input processing, you must call this method frequently
+ * if you expect to have your input callbacks called.
+ *
+ * @param device the device to process
+*/
+void midi_device_process(MidiDevice * device); // [implementation in midi_device.c]
+
+/**@}*/
+
+/**
+ * @defgroup send_functions Midi send functions
+ * @brief These are the functions you use to send midi data through a device.
+ * @{
+ */
+
+/**
+ * @brief Send a control change message (cc) via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param num the cc num
+ * @param val the value of that cc num
+*/
+void midi_send_cc(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t val);
+
+/**
+ * @brief Send a note on message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param num the note number
+ * @param vel the note velocity
+*/
+void midi_send_noteon(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t vel);
+
+/**
+ * @brief Send a note off message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param num the note number
+ * @param vel the note velocity
+*/
+void midi_send_noteoff(MidiDevice * device, uint8_t chan, uint8_t num, uint8_t vel);
+
+/**
+ * @brief Send an after touch message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param note_num the note number
+ * @param amt the after touch amount
+*/
+void midi_send_aftertouch(MidiDevice * device, uint8_t chan, uint8_t note_num, uint8_t amt);
+
+/**
+ * @brief Send a pitch bend message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param amt the bend amount range: -8192..8191, 0 means no bend
+*/
+void midi_send_pitchbend(MidiDevice * device, uint8_t chan, int16_t amt); //range -8192, 8191
+
+/**
+ * @brief Send a program change message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param num the program to change to
+*/
+void midi_send_programchange(MidiDevice * device, uint8_t chan, uint8_t num);
+
+/**
+ * @brief Send a channel pressure message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param chan the channel to send on, 0-15
+ * @param amt the amount of channel pressure
+*/
+void midi_send_channelpressure(MidiDevice * device, uint8_t chan, uint8_t amt);
+
+/**
+ * @brief Send a clock message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_clock(MidiDevice * device);
+
+/**
+ * @brief Send a tick message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_tick(MidiDevice * device);
+
+/**
+ * @brief Send a start message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_start(MidiDevice * device);
+
+/**
+ * @brief Send a continue message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_continue(MidiDevice * device);
+
+/**
+ * @brief Send a stop message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_stop(MidiDevice * device);
+
+/**
+ * @brief Send an active sense message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_activesense(MidiDevice * device);
+
+/**
+ * @brief Send a reset message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_reset(MidiDevice * device);
+
+
+/**
+ * @brief Send a tc quarter frame message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param time the time of this quarter frame, range 0..16383
+ */
+void midi_send_tcquarterframe(MidiDevice * device, uint8_t time);
+
+/**
+ * @brief Send a song position message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param pos the song position
+ */
+void midi_send_songposition(MidiDevice * device, uint16_t pos);
+
+/**
+ * @brief Send a song select message via the given device.
+ *
+ * @param device the device to use for sending
+ * @param song the song to select
+ */
+void midi_send_songselect(MidiDevice * device, uint8_t song);
+
+/**
+ * @brief Send a tune request message via the given device.
+ *
+ * @param device the device to use for sending
+ */
+void midi_send_tunerequest(MidiDevice * device);
+
+/**
+ * @brief Send a byte via the given device.
+ *
+ * This is a generic method for sending data via the given midi device.
+ * This would be useful for sending sysex data or messages that are not
+ * implemented in this API, if there are any. Please contact the author
+ * if you find some so we can add them.
+ *
+ * @param device the device to use for sending
+ * @param b the byte to send
+ */
+void midi_send_byte(MidiDevice * device, uint8_t b);
+
+/**
+ * @brief Send up to 3 bytes of data
+ *
+ * % 4 is applied to count so that you can use this to pass sysex through
+ *
+ * @param device the device to use for sending
+ * @param count the count of bytes to send, %4 is applied
+ * @param byte0 the first byte
+ * @param byte1 the second byte, ignored if cnt % 4 != 2
+ * @param byte2 the third byte, ignored if cnt % 4 != 3
+ */
+void midi_send_data(MidiDevice * device, uint16_t count, uint8_t byte0, uint8_t byte1, uint8_t byte2);
+
+/**
+ * @brief Send an array of formatted midi data.
+ *
+ * Can be used for sysex.
+ *
+ * @param device the device to use for sending
+ * @param count the count of bytes to send
+ * @param array the array of bytes
+ */
+void midi_send_array(MidiDevice * device, uint16_t count, uint8_t * array);
+
+/**@}*/
+
+
+/**
+ * @defgroup input_callback_reg Input callback registration functions
+ *
+ * @brief These are the functions you use to register your input callbacks.
+ *
+ * The functions are called when the appropriate midi message is matched on the
+ * associated device's input.
+ *
+ * @{
+ */
+
+//three byte funcs
+
+/**
+ * @brief Register a control change message (cc) callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_cc_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+/**
+ * @brief Register a note on callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_noteon_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+/**
+ * @brief Register a note off callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_noteoff_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+/**
+ * @brief Register an after touch callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+
+void midi_register_aftertouch_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+/**
+ * @brief Register a pitch bend callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_pitchbend_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+/**
+ * @brief Register a song position callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_songposition_callback(MidiDevice * device, midi_three_byte_func_t func);
+
+//two byte funcs
+
+/**
+ * @brief Register a program change callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_progchange_callback(MidiDevice * device, midi_two_byte_func_t func);
+
+/**
+ * @brief Register a channel pressure callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_chanpressure_callback(MidiDevice * device, midi_two_byte_func_t func);
+
+/**
+ * @brief Register a song select callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_songselect_callback(MidiDevice * device, midi_two_byte_func_t func);
+
+/**
+ * @brief Register a tc quarter frame callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_tc_quarterframe_callback(MidiDevice * device, midi_two_byte_func_t func);
+
+//one byte funcs
+
+/**
+ * @brief Register a realtime callback.
+ *
+ * The callback will be called for all of the real time message types.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_realtime_callback(MidiDevice * device, midi_one_byte_func_t func);
+
+/**
+ * @brief Register a tune request callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_tunerequest_callback(MidiDevice * device, midi_one_byte_func_t func);
+
+/**
+ * @brief Register a sysex callback.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_sysex_callback(MidiDevice * device, midi_sysex_func_t func);
+
+/**
+ * @brief Register fall through callback.
+ *
+ * This is only called if a more specific callback is not matched and called.
+ * For instance, if you don't register a note on callback but you get a note on message
+ * the fall through callback will be called, if it is registered.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_fallthrough_callback(MidiDevice * device, midi_var_byte_func_t func);
+
+
+/**
+ * @brief Register a catch all callback.
+ *
+ * If registered, the catch all callback is called for every message that is
+ * matched, even if a more specific or the fallthrough callback is registered.
+ *
+ * @param device the device associate with
+ * @param func the callback function to register
+ */
+void midi_register_catchall_callback(MidiDevice * device, midi_var_byte_func_t func);
+
+/**@}*/
+
+/**
+ * @defgroup midi_util Device independent utility functions.
+ * @{
+ */
+
+/**
+ * \enum midi_packet_length_t
+ *
+ * An enumeration of the possible packet length values.
+ */
+typedef enum {
+ UNDEFINED = 0,
+ ONE = 1,
+ TWO = 2,
+ THREE = 3} midi_packet_length_t;
+
+/**
+ * @brief Test to see if the byte given is a status byte
+ * @param theByte the byte to test
+ * @return true if the byte given is a midi status byte
+ */
+bool midi_is_statusbyte(uint8_t theByte);
+
+/**
+ * @brief Test to see if the byte given is a realtime message
+ * @param theByte the byte to test
+ * @return true if it is a realtime message, false otherwise
+ */
+bool midi_is_realtime(uint8_t theByte);
+
+/**
+ * @brief Find the length of the packet associated with the status byte given
+ * @param status the status byte
+ * @return the length of the packet, will return UNDEFINED if the byte is not
+ * a status byte or if it is a sysex status byte
+ */
+midi_packet_length_t midi_packet_length(uint8_t status);
+
+/**@}*/
+
+/**
+ * @defgroup defines Midi status and miscellaneous utility #defines
+ *
+ * @{
+ */
+
+#define SYSEX_BEGIN 0xF0
+#define SYSEX_END 0xF7
+
+//if you and this with a byte and you get anything non-zero
+//it is a status message
+#define MIDI_STATUSMASK 0x80
+//if you and this with a status message that contains channel info,
+//you'll get the channel
+#define MIDI_CHANMASK 0x0F
+
+#define MIDI_CC 0xB0
+#define MIDI_NOTEON 0x90
+#define MIDI_NOTEOFF 0x80
+#define MIDI_AFTERTOUCH 0xA0
+#define MIDI_PITCHBEND 0xE0
+#define MIDI_PROGCHANGE 0xC0
+#define MIDI_CHANPRESSURE 0xD0
+
+//midi realtime
+#define MIDI_CLOCK 0xF8
+#define MIDI_TICK 0xF9
+#define MIDI_START 0xFA
+#define MIDI_CONTINUE 0xFB
+#define MIDI_STOP 0xFC
+#define MIDI_ACTIVESENSE 0xFE
+#define MIDI_RESET 0xFF
+
+#define MIDI_TC_QUARTERFRAME 0xF1
+#define MIDI_SONGPOSITION 0xF2
+#define MIDI_SONGSELECT 0xF3
+#define MIDI_TUNEREQUEST 0xF6
+
+//This ID is for educational or development use only
+#define SYSEX_EDUMANUFID 0x7D
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/protocol/lufa/midi/midi_device.c b/protocol/lufa/midi/midi_device.c
new file mode 100755
index 0000000000..3215a007d5
--- /dev/null
+++ b/protocol/lufa/midi/midi_device.c
@@ -0,0 +1,291 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+#include "midi_device.h"
+#include "midi.h"
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+//forward declarations, internally used to call the callbacks
+void midi_input_callbacks(MidiDevice * device, uint16_t cnt, uint8_t byte0, uint8_t byte1, uint8_t byte2);
+void midi_process_byte(MidiDevice * device, uint8_t input);
+
+void midi_device_init(MidiDevice * device){
+ device->input_state = IDLE;
+ device->input_count = 0;
+ bytequeue_init(&device->input_queue, device->input_queue_data, MIDI_INPUT_QUEUE_LENGTH);
+
+ //three byte funcs
+ device->input_cc_callback = NULL;
+ device->input_noteon_callback = NULL;
+ device->input_noteoff_callback = NULL;
+ device->input_aftertouch_callback = NULL;
+ device->input_pitchbend_callback = NULL;
+ device->input_songposition_callback = NULL;
+
+ //two byte funcs
+ device->input_progchange_callback = NULL;
+ device->input_chanpressure_callback = NULL;
+ device->input_songselect_callback = NULL;
+ device->input_tc_quarterframe_callback = NULL;
+
+ //one byte funcs
+ device->input_realtime_callback = NULL;
+ device->input_tunerequest_callback = NULL;
+
+ //var byte functions
+ device->input_sysex_callback = NULL;
+ device->input_fallthrough_callback = NULL;
+ device->input_catchall_callback = NULL;
+
+ device->pre_input_process_callback = NULL;
+}
+
+void midi_device_input(MidiDevice * device, uint8_t cnt, uint8_t * input) {
+ uint8_t i;
+ for (i = 0; i < cnt; i++)
+ bytequeue_enqueue(&device->input_queue, input[i]);
+}
+
+void midi_device_set_send_func(MidiDevice * device, midi_var_byte_func_t send_func){
+ device->send_func = send_func;
+}
+
+void midi_device_set_pre_input_process_func(MidiDevice * device, midi_no_byte_func_t pre_process_func){
+ device->pre_input_process_callback = pre_process_func;
+}
+
+void midi_device_process(MidiDevice * device) {
+ //call the pre_input_process_callback if there is one
+ if(device->pre_input_process_callback)
+ device->pre_input_process_callback(device);
+
+ //pull stuff off the queue and process
+ byteQueueIndex_t len = bytequeue_length(&device->input_queue);
+ uint16_t i;
+ //TODO limit number of bytes processed?
+ for(i = 0; i < len; i++) {
+ uint8_t val = bytequeue_get(&device->input_queue, 0);
+ midi_process_byte(device, val);
+ bytequeue_remove(&device->input_queue, 1);
+ }
+}
+
+void midi_process_byte(MidiDevice * device, uint8_t input) {
+ if (midi_is_realtime(input)) {
+ //call callback, store and restore state
+ input_state_t state = device->input_state;
+ device->input_state = ONE_BYTE_MESSAGE;
+ midi_input_callbacks(device, 1, input, 0, 0);
+ device->input_state = state;
+ } else if (midi_is_statusbyte(input)) {
+ //store the byte
+ if (device->input_state != SYSEX_MESSAGE) {
+ device->input_buffer[0] = input;
+ device->input_count = 1;
+ }
+ switch (midi_packet_length(input)) {
+ case ONE:
+ device->input_state = ONE_BYTE_MESSAGE;;
+ midi_input_callbacks(device, 1, input, 0, 0);
+ device->input_state = IDLE;
+ break;
+ case TWO:
+ device->input_state = TWO_BYTE_MESSAGE;
+ break;
+ case THREE:
+ device->input_state = THREE_BYTE_MESSAGE;
+ break;
+ case UNDEFINED:
+ switch(input) {
+ case SYSEX_BEGIN:
+ device->input_state = SYSEX_MESSAGE;
+ device->input_buffer[0] = input;
+ device->input_count = 1;
+ break;
+ case SYSEX_END:
+ //send what is left in the input buffer, set idle
+ device->input_buffer[device->input_count % 3] = input;
+ device->input_count += 1;
+ //call the callback
+ midi_input_callbacks(device, device->input_count,
+ device->input_buffer[0], device->input_buffer[1], device->input_buffer[2]);
+ device->input_state = IDLE;
+ break;
+ default:
+ device->input_state = IDLE;
+ device->input_count = 0;
+ }
+
+ break;
+ default:
+ device->input_state = IDLE;
+ device->input_count = 0;
+ break;
+ }
+ } else {
+ if (device->input_state != IDLE) {
+ //store the byte
+ device->input_buffer[device->input_count % 3] = input;
+ //increment count
+ uint16_t prev = device->input_count;
+ device->input_count += 1;
+
+ switch(prev % 3) {
+ case 2:
+ //call callback
+ midi_input_callbacks(device, device->input_count,
+ device->input_buffer[0], device->input_buffer[1], device->input_buffer[2]);
+ if (device->input_state != SYSEX_MESSAGE) {
+ //set to 1, keeping status byte, allowing for running status
+ device->input_count = 1;
+ }
+ break;
+ case 1:
+ if (device->input_state == TWO_BYTE_MESSAGE) {
+ //call callback
+ midi_input_callbacks(device, device->input_count,
+ device->input_buffer[0], device->input_buffer[1], 0);
+ if (device->input_state != SYSEX_MESSAGE) {
+ //set to 1, keeping status byte, allowing for running status
+ device->input_count = 1;
+ }
+ }
+ break;
+ case 0:
+ default:
+ //one byte messages are dealt with directly
+ break;
+ }
+ }
+ }
+}
+
+void midi_input_callbacks(MidiDevice * device, uint16_t cnt, uint8_t byte0, uint8_t byte1, uint8_t byte2) {
+ //did we end up calling a callback?
+ bool called = false;
+ if (device->input_state == SYSEX_MESSAGE) {
+ if (device->input_sysex_callback) {
+ const uint16_t start = ((cnt - 1) / 3) * 3;
+ const uint8_t length = (cnt - start);
+ uint8_t data[3];
+ data[0] = byte0;
+ data[1] = byte1;
+ data[2] = byte2;
+ device->input_sysex_callback(device, start, length, data);
+ called = true;
+ }
+ } else {
+ switch (cnt) {
+ case 3:
+ {
+ midi_three_byte_func_t func = NULL;
+ switch (byte0 & 0xF0) {
+ case MIDI_CC:
+ func = device->input_cc_callback;
+ break;
+ case MIDI_NOTEON:
+ func = device->input_noteon_callback;
+ break;
+ case MIDI_NOTEOFF:
+ func = device->input_noteoff_callback;
+ break;
+ case MIDI_AFTERTOUCH:
+ func = device->input_aftertouch_callback;
+ break;
+ case MIDI_PITCHBEND:
+ func = device->input_pitchbend_callback;
+ break;
+ case 0xF0:
+ if (byte0 == MIDI_SONGPOSITION)
+ func = device->input_songposition_callback;
+ break;
+ default:
+ break;
+ }
+ if(func) {
+ //mask off the channel for non song position functions
+ if (byte0 == MIDI_SONGPOSITION)
+ func(device, byte0, byte1, byte2);
+ else
+ func(device, byte0 & 0x0F, byte1, byte2);
+ called = true;
+ }
+ }
+ break;
+ case 2:
+ {
+ midi_two_byte_func_t func = NULL;
+ switch (byte0 & 0xF0) {
+ case MIDI_PROGCHANGE:
+ func = device->input_progchange_callback;
+ break;
+ case MIDI_CHANPRESSURE:
+ func = device->input_chanpressure_callback;
+ break;
+ case 0xF0:
+ if (byte0 == MIDI_SONGSELECT)
+ func = device->input_songselect_callback;
+ else if (byte0 == MIDI_TC_QUARTERFRAME)
+ func = device->input_tc_quarterframe_callback;
+ break;
+ default:
+ break;
+ }
+ if(func) {
+ //mask off the channel
+ if (byte0 == MIDI_SONGSELECT || byte0 == MIDI_TC_QUARTERFRAME)
+ func(device, byte0, byte1);
+ else
+ func(device, byte0 & 0x0F, byte1);
+ called = true;
+ }
+ }
+ break;
+ case 1:
+ {
+ midi_one_byte_func_t func = NULL;
+ if (midi_is_realtime(byte0))
+ func = device->input_realtime_callback;
+ else if (byte0 == MIDI_TUNEREQUEST)
+ func = device->input_tunerequest_callback;
+ if (func) {
+ func(device, byte0);
+ called = true;
+ }
+ }
+ break;
+ default:
+ //just in case
+ if (cnt > 3)
+ cnt = 0;
+ break;
+ }
+ }
+
+ //if there is fallthrough default callback and we haven't called a more specific one,
+ //call the fallthrough
+ if (!called && device->input_fallthrough_callback)
+ device->input_fallthrough_callback(device, cnt, byte0, byte1, byte2);
+ //always call the catch all if it exists
+ if (device->input_catchall_callback)
+ device->input_catchall_callback(device, cnt, byte0, byte1, byte2);
+}
+
diff --git a/protocol/lufa/midi/midi_device.h b/protocol/lufa/midi/midi_device.h
new file mode 100755
index 0000000000..088995286c
--- /dev/null
+++ b/protocol/lufa/midi/midi_device.h
@@ -0,0 +1,156 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * @file
+ * @brief Device implementation functions
+ */
+
+#ifndef MIDI_DEVICE_H
+#define MIDI_DEVICE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup midi_device Functions used when implementing your own midi device.
+ *
+ * You use the functions when you are implementing your own midi device.
+ *
+ * You set a send function to actually send bytes via your device, this method
+ * is called when you call a send function with this device, for instance
+ * midi_send_cc
+ *
+ * You use the midi_device_input to process input data from the device and pass
+ * it through the device's associated callbacks.
+ *
+ * You use the midi_device_set_pre_input_process_func if you want to have a
+ * function called at the beginning of the device's process function, generally
+ * to poll for input and pass that into midi_device_input
+ *
+ * @{
+ */
+
+#include "midi_function_types.h"
+#include "bytequeue/bytequeue.h"
+#define MIDI_INPUT_QUEUE_LENGTH 192
+
+typedef enum {
+ IDLE,
+ ONE_BYTE_MESSAGE = 1,
+ TWO_BYTE_MESSAGE = 2,
+ THREE_BYTE_MESSAGE = 3,
+ SYSEX_MESSAGE} input_state_t;
+
+typedef void (* midi_no_byte_func_t)(MidiDevice * device);
+
+/**
+ * \struct _midi_device
+ *
+ * @brief This structure represents the input and output functions and
+ * processing data for a midi device.
+ *
+ * A device can represent an actual physical device [serial port, usb port] or
+ * something virtual.
+ * You should not need to modify this structure directly.
+ */
+struct _midi_device {
+ //output send function
+ midi_var_byte_func_t send_func;
+
+ //********input callbacks
+ //three byte funcs
+ midi_three_byte_func_t input_cc_callback;
+ midi_three_byte_func_t input_noteon_callback;
+ midi_three_byte_func_t input_noteoff_callback;
+ midi_three_byte_func_t input_aftertouch_callback;
+ midi_three_byte_func_t input_pitchbend_callback;
+ midi_three_byte_func_t input_songposition_callback;
+ //two byte funcs
+ midi_two_byte_func_t input_progchange_callback;
+ midi_two_byte_func_t input_chanpressure_callback;
+ midi_two_byte_func_t input_songselect_callback;
+ midi_two_byte_func_t input_tc_quarterframe_callback;
+ //one byte funcs
+ midi_one_byte_func_t input_realtime_callback;
+ midi_one_byte_func_t input_tunerequest_callback;
+
+ //sysex
+ midi_sysex_func_t input_sysex_callback;
+
+ //only called if more specific callback is not matched
+ midi_var_byte_func_t input_fallthrough_callback;
+ //called if registered, independent of other callbacks
+ midi_var_byte_func_t input_catchall_callback;
+
+ //pre input processing function
+ midi_no_byte_func_t pre_input_process_callback;
+
+ //for internal input processing
+ uint8_t input_buffer[3];
+ input_state_t input_state;
+ uint16_t input_count;
+
+ //for queueing data between the input and the processing functions
+ uint8_t input_queue_data[MIDI_INPUT_QUEUE_LENGTH];
+ byteQueue_t input_queue;
+};
+
+/**
+ * @brief Process input bytes. This function parses bytes and calls the
+ * appropriate callbacks associated with the given device. You use this
+ * function if you are creating a custom device and you want to have midi
+ * input.
+ *
+ * @param device the midi device to associate the input with
+ * @param cnt the number of bytes you are processing
+ * @param input the bytes to process
+ */
+void midi_device_input(MidiDevice * device, uint8_t cnt, uint8_t * input);
+
+/**
+ * @brief Set the callback function that will be used for sending output
+ * data bytes. This is only used if you're creating a custom device.
+ * You'll most likely want the callback function to disable interrupts so
+ * that you can call the various midi send functions without worrying about
+ * locking.
+ *
+ * \param device the midi device to associate this callback with
+ * \param send_func the callback function that will do the sending
+ */
+void midi_device_set_send_func(MidiDevice * device, midi_var_byte_func_t send_func);
+
+/**
+ * @brief Set a callback which is called at the beginning of the
+ * midi_device_process call. This can be used to poll for input
+ * data and send the data through the midi_device_input function.
+ * You'll probably only use this if you're creating a custom device.
+ *
+ * \param device the midi device to associate this callback with
+ * \param midi_no_byte_func_t the actual callback function
+ */
+void midi_device_set_pre_input_process_func(MidiDevice * device, midi_no_byte_func_t pre_process_func);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/protocol/lufa/midi/midi_function_types.h b/protocol/lufa/midi/midi_function_types.h
new file mode 100755
index 0000000000..35c4601b20
--- /dev/null
+++ b/protocol/lufa/midi/midi_function_types.h
@@ -0,0 +1,50 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * @file
+ * @brief Function signature definitions
+ */
+
+#ifndef MIDI_FUNCTION_TYPES_H
+#define MIDI_FUNCTION_TYPES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+//forward declaration
+typedef struct _midi_device MidiDevice;
+
+typedef void (* midi_one_byte_func_t)(MidiDevice * device, uint8_t byte);
+typedef void (* midi_two_byte_func_t)(MidiDevice * device, uint8_t byte0, uint8_t byte1);
+typedef void (* midi_three_byte_func_t)(MidiDevice * device, uint8_t byte0, uint8_t byte1, uint8_t byte2);
+//all bytes after count bytes should be ignored
+typedef void (* midi_var_byte_func_t)(MidiDevice * device, uint16_t count, uint8_t byte0, uint8_t byte1, uint8_t byte2);
+
+//the start byte tells you how far into the sysex message you are, the data_length tells you how many bytes data is
+typedef void (* midi_sysex_func_t)(MidiDevice * device, uint16_t start_byte, uint8_t data_length, uint8_t *data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/protocol/lufa/midi/sysex_tools.c b/protocol/lufa/midi/sysex_tools.c
new file mode 100755
index 0000000000..7563a3e2aa
--- /dev/null
+++ b/protocol/lufa/midi/sysex_tools.c
@@ -0,0 +1,99 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+#include "sysex_tools.h"
+
+uint16_t sysex_encoded_length(uint16_t decoded_length){
+ uint8_t remainder = decoded_length % 7;
+ if (remainder)
+ return (decoded_length / 7) * 8 + remainder + 1;
+ else
+ return (decoded_length / 7) * 8;
+}
+
+uint16_t sysex_decoded_length(uint16_t encoded_length){
+ uint8_t remainder = encoded_length % 8;
+ if (remainder)
+ return (encoded_length / 8) * 7 + remainder - 1;
+ else
+ return (encoded_length / 8) * 7;
+}
+
+uint16_t sysex_encode(uint8_t *encoded, const uint8_t *source, const uint16_t length){
+ uint16_t encoded_full = length / 7; //number of full 8 byte sections from 7 bytes of input
+ uint16_t i,j;
+
+ //fill out the fully encoded sections
+ for(i = 0; i < encoded_full; i++) {
+ uint16_t encoded_msb_idx = i * 8;
+ uint16_t input_start_idx = i * 7;
+ encoded[encoded_msb_idx] = 0;
+ for(j = 0; j < 7; j++){
+ uint8_t current = source[input_start_idx + j];
+ encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
+ encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
+ }
+ }
+
+ //fill out the rest if there is any more
+ uint8_t remainder = length % 7;
+ if (remainder) {
+ uint16_t encoded_msb_idx = encoded_full * 8;
+ uint16_t input_start_idx = encoded_full * 7;
+ encoded[encoded_msb_idx] = 0;
+ for(j = 0; j < remainder; j++){
+ uint8_t current = source[input_start_idx + j];
+ encoded[encoded_msb_idx] |= (0x80 & current) >> (1 + j);
+ encoded[encoded_msb_idx + 1 + j] = 0x7F & current;
+ }
+ return encoded_msb_idx + remainder + 1;
+ } else {
+ return encoded_full * 8;
+ }
+}
+
+uint16_t sysex_decode(uint8_t *decoded, const uint8_t *source, const uint16_t length){
+ uint16_t decoded_full = length / 8;
+ uint16_t i,j;
+
+ if (length < 2)
+ return 0;
+
+ //fill out the fully encoded sections
+ for(i = 0; i < decoded_full; i++) {
+ uint16_t encoded_msb_idx = i * 8;
+ uint16_t output_start_index = i * 7;
+ for(j = 0; j < 7; j++){
+ decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
+ decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
+ }
+ }
+ uint8_t remainder = length % 8;
+ if (remainder) {
+ uint16_t encoded_msb_idx = decoded_full * 8;
+ uint16_t output_start_index = decoded_full * 7;
+ for(j = 0; j < (remainder - 1); j++) {
+ decoded[output_start_index + j] = 0x7F & source[encoded_msb_idx + j + 1];
+ decoded[output_start_index + j] |= (0x80 & (source[encoded_msb_idx] << (1 + j)));
+ }
+ return decoded_full * 7 + remainder - 1;
+ } else {
+ return decoded_full * 7;
+ }
+}
+
diff --git a/protocol/lufa/midi/sysex_tools.h b/protocol/lufa/midi/sysex_tools.h
new file mode 100755
index 0000000000..3654d0114f
--- /dev/null
+++ b/protocol/lufa/midi/sysex_tools.h
@@ -0,0 +1,95 @@
+//midi for embedded chips,
+//Copyright 2010 Alex Norman
+//
+//This file is part of avr-midi.
+//
+//avr-midi 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-midi 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-midi. If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef SYSEX_TOOLS_H
+#define SYSEX_TOOLS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <inttypes.h>
+
+/**
+ * @file
+ * @brief Sysex utility functions
+ *
+ * These functions are for converting data to and from a "midi-safe" format,
+ * which can be use to send data with sysex messages. Sysex messages may only
+ * contain data where the to bit is not set.
+ *
+ * An "encoded" midi message is one that contains all of the data from its
+ * original state, but does not have any of the top bits set.
+ *
+ * Every 7 bytes of decoded data is converted into 8 bytes of encoded data and
+ * visa-versa. If you'd like to operate on small segments, make sure that you
+ * encode in 7 byte increments and decode in 8 byte increments.
+ *
+ */
+
+/** @defgroup sysex_tools Sysex utility functions
+ * @{
+ */
+
+/**
+ * @brief Compute the length of a message after it is encoded.
+ *
+ * @param decoded_length The length, in bytes, of the message to encode.
+ *
+ * @return The length, in bytes, of the message after encodeing.
+ */
+uint16_t sysex_encoded_length(uint16_t decoded_length);
+
+/**
+ * @brief Compute the length of a message after it is decoded.
+ *
+ * @param encoded_length The length, in bytes, of the encoded message.
+ *
+ * @return The length, in bytes, of the message after it is decoded.
+ */
+uint16_t sysex_decoded_length(uint16_t encoded_length);
+
+/**
+ * @brief Encode data so that it can be transmitted safely in a sysex message.
+ *
+ * @param encoded The output data buffer, must be at least sysex_encoded_length(length) bytes long.
+ * @param source The input buffer of data to be encoded.
+ * @param length The number of bytes from the input buffer to encode.
+ *
+ * @return number of bytes encoded.
+ */
+uint16_t sysex_encode(uint8_t *encoded, const uint8_t *source, uint16_t length);
+
+/**
+ * @brief Decode encoded data.
+ *
+ * @param decoded The output data buffer, must be at least sysex_decoded_length(length) bytes long.
+ * @param source The input buffer of data to be decoded.
+ * @param length The number of bytes from the input buffer to decode.
+ *
+ * @return number of bytes decoded.
+ */
+uint16_t sysex_decode(uint8_t *decoded, const uint8_t *source, uint16_t length);
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif