delete ch-flash in favor of a submodule solution

7 files changed, 0 insertions, 1680 deletions

diff --git a/ch-flash/.clang-format b/ch-flash/.clang-format
deleted file mode 100644
index 567ff11..0000000
--- a/ch-flash/.clang-format
+++ /dev/null
@@ -1,11 +0,0 @@
-BasedOnStyle: Google
-IndentWidth: 2
-BreakBeforeBraces: Custom
-BraceWrapping:
-  AfterFunction: true
-AllowShortFunctionsOnASingleLine: InlineOnly
-AlignAfterOpenBracket: AlwaysBreak
-BinPackArguments: false
-BinPackParameters: false
-ExperimentalAutoDetectBinPacking: false
-AllowAllParametersOfDeclarationOnNextLine: true
diff --git a/ch-flash/.gitignore b/ch-flash/.gitignore
deleted file mode 100644
index ba09941..0000000
--- a/ch-flash/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*.o
-ch-flash
diff --git a/ch-flash/COPYING b/ch-flash/COPYING
deleted file mode 100644
index 94a9ed0..0000000
--- a/ch-flash/COPYING
+++ /dev/null
@@ -1,674 +0,0 @@
-                    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/ch-flash/Makefile b/ch-flash/Makefile
deleted file mode 100644
index ba21548..0000000
--- a/ch-flash/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ch-flash: ch-flash.c ch-flash.h
-	gcc -O2 -o ch-flash ch-flash.c -lusb-1.0
-
-clean:
-	rm -rf ch-flash
diff --git a/ch-flash/README.md b/ch-flash/README.md
deleted file mode 100644
index 640f961..0000000
--- a/ch-flash/README.md
+++ /dev/null
@@ -1,30 +0,0 @@
-# ch-flash
-
-A program for flashing the CH573 devices.
-
-this is a fork of [](https://github.com/frank-zago/isp55e0.git) with the notable
-difference that it will wait for the CH573 device to be connected if one is not
-connected already.
-
-This has the benefit of not needing to "race the clock" when flashing the device
-because the CH537 (or at least the ones I have) have an unstable usb interface
-and will disconnect and reset after several seconds of being connected to the
-machine.
-
-With this new utility one can run the flash program and then connect the device
-when it will be flashed.
-
-## udev
-
-To flash the device requires some permissions to set up. One can run this flash
-program as root to flash the device, but for those who wish to keep the flashing
-under-privliged, one can add the following udev rules in
-`/etc/udev/rules.d/50-ch573.rules`:
-
-```
-SUBSYSTEM=="usb", ATTR{idVendor}=="4348", ATTR{idProduct}=="55e0", MODE:="0666"
-```
-
-Then run the command:
-
-`udevadm control --reload-rules`
diff --git a/ch-flash/ch-flash.c b/ch-flash/ch-flash.c
deleted file mode 100644
index 548487d..0000000
--- a/ch-flash/ch-flash.c
+++ /dev/null
@@ -1,776 +0,0 @@
-/*
- * ISP-55E0 - an ISP programmer for some WinChipHead MCU families
- * Copyright 2021 Frank Zago
- *
- * 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/>.
- */
-
-#include "ch-flash.h"
-
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <libusb-1.0/libusb.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-/* Profile of supported chips */
-static const struct ch_profile profiles[] = {
-    {
-        .name = "CH549",
-        .family = 0x12,
-        .type = 0x49,
-        .code_flash_size = 61440,
-        .data_flash_size = 1024,
-        .mcu_id_len = 8,
-        .need_last_write = true,
-    },
-    {
-        .name = "CH551",
-        .family = 0x11,
-        .type = 0x51,
-        .code_flash_size = 10240,
-        .data_flash_size = 128,
-        .mcu_id_len = 4,
-    },
-    {
-        .name = "CH552",
-        .family = 0x11,
-        .type = 0x52,
-        .code_flash_size = 14336,
-        .data_flash_size = 128,
-        .mcu_id_len = 4,
-    },
-    {
-        .name = "CH554",
-        .family = 0x11,
-        .type = 0x54,
-        .code_flash_size = 14336,
-        .data_flash_size = 128,
-        .mcu_id_len = 4,
-    },
-    {
-        .name = "CH559",
-        .family = 0x11,
-        .type = 0x59,
-        .code_flash_size = 61440,
-        .data_flash_size = 1024,
-        .mcu_id_len = 4,
-    },
-    {
-        .name = "CH573",
-        .family = 0x13,
-        .type = 0x73,
-        .code_flash_size = 458752,
-        .data_flash_size = 32768,
-        .mcu_id_len = 8,
-    },
-    {
-        .name = "CH579",
-        .family = 0x13,
-        .type = 0x79,
-        .code_flash_size = 256000,
-        .data_flash_size = 2048,
-        .mcu_id_len = 8,
-        .clear_cfg_rom_read = true,
-    },
-    {
-        .name = "CH32F103",
-        .family = 0x14,
-        .type = 0x3f,
-        .code_flash_size = 65536,
-        .mcu_id_len = 8,
-        .need_remove_wp = true,
-        .need_last_write = true,
-    },
-    {
-        .name = "CH32V103",
-        .family = 0x15,
-        .type = 0x3f,
-        .code_flash_size = 65536,
-        .mcu_id_len = 8,
-        .need_remove_wp = true,
-        .need_last_write = true,
-    },
-    {
-        .name = "CH582",
-        .family = 0x16,
-        .type = 0x82,
-        .code_flash_size = 458752,
-        .data_flash_size = 32768,
-        .mcu_id_len = 8,
-    },
-    {}};
-
-static const struct option long_options[] = {
-    {"code-verify", required_argument, 0, 'c'},
-    {"debug", no_argument, 0, 'd'},
-    {"code-flash", required_argument, 0, 'f'},
-    {"help", no_argument, 0, 'h'},
-    {"data-flash", required_argument, 0, 'k'},
-    {"data-verify", required_argument, 0, 'l'},
-    {"data-dump", required_argument, 0, 'm'},
-    {0, 0, 0, 0}};
-
-static void usage(void)
-{
-  printf("ISP programmer for some WinChipHead MCUs\n");
-  printf("Options:\n");
-  printf("  --code-flash, -f    firmware to flash\n");
-  printf("  --code-verify, -c   verify existing firwmare\n");
-  printf("  --data-flash, -k    data to flash\n");
-  printf("  --data-verify, -l   verify existing data\n");
-  printf("  --data-dump, -m     dump the data flash to a file\n");
-  printf("  --debug, -d         turn debug traces on\n");
-  printf("  --help, -h          this help\n");
-}
-
-static void hexdump(const char *name, const void *data, int len)
-{
-  const uint8_t *p = data;
-  int i;
-
-  printf("Dump - %s\n", name);
-  for (i = 0; i < len; i++) {
-    if (i && (i % 16) == 0) printf("\n");
-
-    printf("%02x ", *p++);
-  }
-  printf("\n");
-}
-
-/* Open and claim the USB device */
-static void open_usb_device(struct device *dev)
-{
-  int ret;
-
-  libusb_context *ctx;
-  ret = libusb_init(&ctx);
-  if (ret) errx(EXIT_FAILURE, "Can't initialize USB");
-
-  printf("Opening device with vid and pid\n");
-
-  do {
-    dev->usb_h = libusb_open_device_with_vid_pid(NULL, 0x4348, 0x55e0);
-    if (dev->usb_h != NULL) {
-      break;
-    }
-    fprintf(stderr, "Waiting for CH5xx device in ISP Mode ...\n");
-    libusb_handle_events(ctx);
-  } while (1);
-
-  printf("Detaching from kernel\n");
-  ret = libusb_set_auto_detach_kernel_driver(dev->usb_h, 1);
-  if (ret) errx(EXIT_FAILURE, "Can't detach the device from the kernel");
-
-  ret = libusb_claim_interface(dev->usb_h, 0);
-  if (ret) errx(EXIT_FAILURE, "Can't claim the USB device\n");
-}
-
-/* Send a request, get a reply */
-static int transfer(
-    struct device *dev, void *req, int req_len, void *resp, int resp_len)
-{
-  int len;
-  int ret;
-
-  ret =
-      libusb_bulk_transfer(dev->usb_h, EP_OUT, req, req_len, &len, USB_TIMEOUT);
-  if (ret) return -EIO;
-
-  if (dev->debug) hexdump("request", req, len);
-
-  ret = libusb_bulk_transfer(
-      dev->usb_h, EP_IN, resp, resp_len, &len, USB_TIMEOUT);
-  if (ret) return -EIO;
-
-  if (dev->debug) hexdump("response", resp, len);
-
-  return 0;
-}
-
-static void set_chip_profile(struct device *dev, uint8_t family, uint8_t type)
-{
-  const struct ch_profile *profile = profiles;
-
-  while (profile->name) {
-    if (profile->family == family && profile->type == type) {
-      dev->profile = profile;
-      dev->fw.max_flash_size = profile->code_flash_size;
-      dev->data.max_flash_size = profile->data_flash_size;
-      dev->data_dump.max_flash_size = profile->data_flash_size;
-      return;
-    }
-
-    profile++;
-  }
-
-  errx(
-      EXIT_FAILURE,
-      "Device family 0x%02x type 0x%02x is not supported\n",
-      family,
-      type);
-}
-
-static void read_chip_type(struct device *dev)
-{
-  struct req_get_chip_type req = {
-      .hdr.command = CMD_CHIP_TYPE,
-      .hdr.data_len = sizeof(req) - sizeof(req.hdr),
-      .string = "MCU ISP & WCH.CN",
-  };
-  struct resp_chip_type resp;
-  int ret;
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't get the device type");
-
-  if (resp.family == 0)
-    errx(EXIT_FAILURE, "Chip is hosed. Reset or power cycle it.");
-
-  set_chip_profile(dev, resp.family, resp.type);
-}
-
-static void read_config(struct device *dev)
-{
-  struct req_read_config req = {
-      .hdr.command = CMD_READ_CONFIG,
-      .hdr.data_len = sizeof(req) - sizeof(req.hdr),
-      .what = 0x1f,
-  };
-  struct resp_read_config resp;
-  int ret;
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't get the device configuration");
-
-  dev->bv = be32toh(resp.bootloader_version);
-  memcpy(dev->id, resp.id, dev->profile->mcu_id_len);
-  memcpy(dev->config_data, resp.config_data, sizeof(dev->config_data));
-}
-
-/* Write some configuration. Hardcoded for now. */
-static void write_config(struct device *dev)
-{
-  struct req_write_config req = {
-      .hdr.command = CMD_WRITE_CONFIG,
-      .hdr.data_len = sizeof(req) - sizeof(req.hdr),
-      .what = 0x07,
-  };
-  struct resp_write_config resp;
-  int ret;
-
-  memcpy(req.config_data, dev->config_data, sizeof(req.config_data));
-
-  if (dev->profile->need_remove_wp && req.config_data[0] == 0xff)
-    req.config_data[0] = 0xa5;
-
-  if (dev->profile->clear_cfg_rom_read) {
-    /* CH579 - the CFG_ROM_READ must be cleared, otherwise
-     * flashing will fail.
-     */
-    req.config_data[8] &= ~0x80;
-  }
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't write the new configuration");
-}
-
-/* Erase the flash */
-static void erase_code_flash(struct device *dev)
-{
-  struct req_erase_flash req = {
-      .hdr.command = CMD_ERASE_CODE_FLASH,
-      .hdr.data_len = sizeof(req) - sizeof(req.hdr),
-  };
-  struct resp_erase_flash resp;
-  int length;
-  int ret;
-
-  /* Erase length is in KiB blocks, with a minimum of 8KiB */
-  length = ((dev->fw.len + 1023) & ~1023) / 1024;
-  if (length < 8) length = 8;
-
-  req.length = length;
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't erase the code flash");
-
-  if (resp.return_code != 0x00)
-    errx(EXIT_FAILURE, "The device refused to erase the code flash");
-}
-
-static void load_file(struct device *dev, struct content *info)
-{
-  struct stat statbuf;
-  int ret;
-  int fd;
-
-  fd = open(info->filename, O_RDONLY);
-  if (fd == -1) err(EXIT_FAILURE, "Can't open the firmware file");
-
-  ret = fstat(fd, &statbuf);
-  if (ret == -1) err(EXIT_FAILURE, "Can't get firmware file size");
-
-  /* Round up to 8 bytes boundary as upload protocol requires
-   * it. Extra bytes are zeroes. */
-  info->len = (statbuf.st_size + 7) & ~7;
-
-  if (info->len > info->max_flash_size)
-    errx(EXIT_FAILURE, "Firmware cannot fit in flash");
-
-  info->buf = malloc(info->len);
-  if (info->buf == NULL)
-    errx(EXIT_FAILURE, "Can't allocate %zd bytes for the firmware", info->len);
-
-  memset(info->buf, 0xff, info->len);
-
-  /* TODO: loop until all read, or use mmap instead. */
-  ret = read(fd, info->buf, statbuf.st_size);
-  if (ret != statbuf.st_size) err(EXIT_FAILURE, "Can't read firmware file");
-
-  close(fd);
-}
-
-/* Encrypt (or decrypt) some data */
-static void encrypt(const struct device *dev, struct content *info)
-{
-  uint8_t *p;
-  int i;
-
-  p = info->buf;
-  for (i = 0; i < info->len; i++) {
-    *p++ ^= dev->xor_key[i % XOR_KEY_LEN];
-  }
-
-  info->encrypted = !info->encrypted;
-}
-
-/* Create the local key to encrypt the data to send */
-static void create_key(struct device *dev)
-{
-  uint8_t sum;
-  int i;
-
-  sum = 0;
-  for (i = 0; i < dev->profile->mcu_id_len; i++) sum += dev->id[i];
-
-  for (i = 0; i < XOR_KEY_LEN; i++) dev->xor_key[i] = sum;
-  dev->xor_key[7] += dev->profile->type;
-}
-
-/* Send the encryption key */
-static void send_key(struct device *dev)
-{
-  static struct req_set_key req = {
-      .hdr.command = CMD_SET_KEY,
-      .hdr.data_len = 0x1e,
-  };
-  struct resp_set_key resp;
-  int ret;
-  uint8_t sum;
-  int i;
-
-  sum = 0;
-  for (i = 0; i < XOR_KEY_LEN; i++) sum += dev->xor_key[i];
-
-  ret = transfer(
-      dev,
-      &req,
-      sizeof(struct req_hdr) + req.hdr.data_len,
-      &resp,
-      sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't set the key");
-
-  if (resp.key_checksum != sum)
-    errx(EXIT_FAILURE, "The device refused the key");
-}
-
-/* read or write code flash, or write data flash */
-static int flash_rw(
-    struct device *dev, int cmd, struct content *info, int *offset_out)
-{
-  struct req_flash_rw req = {
-      .hdr.command = cmd,
-  };
-  struct resp_flash_rw resp;
-  int offset;
-  int to_send;
-  int len;
-  int ret;
-
-  /* Send the firmware in 56 bytes chunks */
-  offset = 0;
-  to_send = info->len;
-  while (to_send) {
-    req.offset = offset;
-
-    len = sizeof(req.data);
-    if (len > to_send) len = to_send;
-
-    req.hdr.data_len = len + 5;
-
-    memcpy(&req.data, &info->buf[offset], len);
-
-    ret = transfer(
-        dev,
-        &req,
-        sizeof(struct req_hdr) + req.hdr.data_len,
-        &resp,
-        sizeof(resp));
-    if (ret) errx(EXIT_FAILURE, "Write failure at offset %d", offset);
-
-    if (resp.return_code != 0) {
-      *offset_out = offset;
-      return resp.return_code;
-    }
-
-    to_send -= len;
-    offset += len;
-  }
-
-  if (cmd == CMD_WRITE_CODE_FLASH && dev->profile->need_last_write) {
-    /* The CH32Fx need a last empty write. */
-    req.offset = info->len;
-    req.hdr.data_len = 5;
-
-    ret = transfer(
-        dev,
-        &req,
-        sizeof(struct req_hdr) + req.hdr.data_len,
-        &resp,
-        sizeof(resp));
-    if (ret) errx(EXIT_FAILURE, "Write failure at offset %d", offset);
-
-    if (resp.return_code != 0) {
-      *offset_out = offset;
-      return resp.return_code;
-    }
-  }
-
-  return 0;
-}
-
-static void write_code_flash(struct device *dev)
-{
-  int offset;
-  int ret;
-
-  ret = flash_rw(dev, CMD_WRITE_CODE_FLASH, &dev->fw, &offset);
-  if (ret) errx(EXIT_FAILURE, "Write code flash failure at offset %d", offset);
-}
-
-static void verify_code_flash(struct device *dev)
-{
-  int offset;
-  int ret;
-
-  ret = flash_rw(dev, CMD_CMP_CODE_FLASH, &dev->fw, &offset);
-  if (ret) errx(EXIT_FAILURE, "Check code flash failure at offset %d", offset);
-}
-
-static void erase_data_flash(struct device *dev)
-{
-  struct req_erase_data_flash req = {
-      .hdr.command = CMD_ERASE_DATA_FLASH,
-  };
-  struct resp_erase_data_flash resp;
-  size_t length;
-  int ret;
-
-  /* Erase length is in KiB blocks, with a minimum of 1KiB */
-  length = ((dev->profile->data_flash_size + 1023) & ~1023) / 1024;
-  if (length < 1) length = 1;
-
-  req.len = length;
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-  if (ret) errx(EXIT_FAILURE, "Can't erase the data flash");
-
-  if (resp.return_code != 0x00)
-    errx(EXIT_FAILURE, "The device refused to erase the data flash");
-}
-
-static void write_data_flash(struct device *dev)
-{
-  int ret;
-  int offset;
-
-  ret = flash_rw(dev, CMD_WRITE_DATA_FLASH, &dev->data, &offset);
-  if (ret) errx(EXIT_FAILURE, "Write data flash failure at offset %d", offset);
-}
-
-static void read_data_flash(struct device *dev)
-{
-  struct req_read_data_flash req = {
-      .hdr.command = CMD_READ_DATA_FLASH,
-  };
-  struct resp_read_data_flash resp;
-  int to_read;
-  int offset;
-  int len;
-  int ret;
-
-  to_read = dev->data_dump.max_flash_size;
-
-  dev->data_dump.len = to_read;
-  dev->data_dump.buf = calloc(1, to_read);
-  if (!dev->data_dump.buf)
-    errx(EXIT_FAILURE, "Can't allocate %u bytes for the data flash", to_read);
-
-  offset = 0;
-
-  while (to_read) {
-    req.offset = offset;
-
-    len = sizeof(resp.data);
-    if (len > to_read) len = to_read;
-
-    req.len = len;
-
-    ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-    if (ret) errx(EXIT_FAILURE, "Data read failure at offset %d", offset);
-
-    if (resp.return_code != 0)
-      errx(EXIT_FAILURE, "Data read failure at offset %d", offset);
-
-    memcpy(&dev->data_dump.buf[offset], resp.data, len);
-
-    to_read -= len;
-    offset += len;
-  }
-}
-
-static void verify_data_flash(struct device *dev)
-{
-  if (dev->data.encrypted) {
-    /* The data was just written previously to the flash,
-     * and encrypted. It needs to been decrypted now so
-     * the comparison can happen. */
-    encrypt(dev, &dev->data);
-  }
-
-  if (memcmp(dev->data.buf, dev->data_dump.buf, dev->data.len) != 0)
-    errx(EXIT_FAILURE, "Data flash doesn't match");
-}
-
-static void dump_data_flash(struct device *dev)
-{
-  int fd;
-  int ret;
-
-  fd = creat(dev->data_dump.filename, 0600);
-  if (fd == -1)
-    err(EXIT_FAILURE, "Can't create the file to dump the data flash");
-
-  ret = write(fd, dev->data_dump.buf, dev->data.max_flash_size);
-  if (ret == -1) err(EXIT_FAILURE, "Can't dump the data flash");
-
-  if (ret != dev->profile->data_flash_size)
-    err(EXIT_FAILURE, "Can't dump all the data flash to file");
-
-  close(fd);
-}
-
-/* Reboot the device */
-static void reboot_device(struct device *dev)
-{
-  struct req_reboot req = {
-      .hdr.command = CMD_REBOOT,
-      .hdr.data_len = sizeof(req) - sizeof(req.hdr),
-      .option = 0x01,
-  };
-  struct resp_reboot resp;
-  int ret;
-
-  ret = transfer(dev, &req, sizeof(req), &resp, sizeof(resp));
-
-  /* 2.4.0 bootloaders do not respond. 2.8.0 does. */
-  if (!dev->wait_reboot_resp) return;
-
-  if (ret) errx(EXIT_FAILURE, "Can't reboot the device");
-
-  if (resp.return_code != 0x00)
-    errx(EXIT_FAILURE, "The device refused to reboot");
-}
-
-int main(int argc, char *argv[])
-{
-  struct device dev = {};
-  bool do_code_flash = false;
-  bool do_code_verify = false;
-  bool do_data_flash = false;
-  bool do_data_verify = false;
-  bool do_data_dump = false;
-  int c;
-  int i;
-
-  while (1) {
-    int option_index = 0;
-
-    c = getopt_long(argc, argv, "c:df:hk:l:m:", long_options, &option_index);
-    if (c == -1) break;
-
-    switch (c) {
-      case 0:
-        printf("option %s", long_options[option_index].name);
-        if (optarg) printf(" with arg %s", optarg);
-        printf("\n");
-        break;
-      case 'c':
-        dev.fw.filename = optarg;
-        do_code_verify = true;
-        break;
-      case 'd':
-        dev.debug = true;
-        break;
-      case 'f':
-        dev.fw.filename = optarg;
-        do_code_flash = true;
-        do_code_verify = true; /* always verify after flashing */
-        break;
-      case 'k':
-        dev.data.filename = optarg;
-        do_data_flash = true;
-        do_data_verify = true;
-        break;
-      case 'l':
-        dev.data.filename = optarg;
-        do_data_verify = true;
-        break;
-      case 'm':
-        dev.data_dump.filename = optarg;
-        do_data_dump = true;
-        break;
-      case 'h':
-        usage();
-        return EXIT_SUCCESS;
-      default:
-        return EXIT_FAILURE;
-    }
-  }
-
-  if (optind < argc) errx(EXIT_FAILURE, "Extra argument: %s", argv[optind]);
-
-  printf("Opening USB Device\n");
-  open_usb_device(&dev);
-  printf("Reading device.\n");
-  read_chip_type(&dev);
-  printf("Found device %s\n", dev.profile->name);
-
-  read_config(&dev);
-
-  printf(
-      "Bootloader version %d.%d.%d\n",
-      (dev.bv >> 16) & 0xff,
-      (dev.bv >> 8) & 0xff,
-      dev.bv & 0xff);
-
-  printf("Unique chip ID ");
-  for (i = 0; i < dev.profile->mcu_id_len; i++) {
-    if (i > 0) printf("-");
-    printf("%02x", dev.id[i]);
-  }
-  printf("\n");
-
-  /* check bootloader version */
-  switch (dev.bv) {
-    case 0x020301:
-    case 0x020400:
-      dev.wait_reboot_resp = false;
-      break;
-
-    case 0x020500:
-    case 0x020600:
-    case 0x020800:
-    case 0x020900:
-      dev.wait_reboot_resp = true;
-      break;
-
-    default:
-      errx(EXIT_FAILURE, "This bootloader version is not supported");
-  }
-
-  create_key(&dev);
-
-  if (do_code_flash || do_code_verify) {
-    load_file(&dev, &dev.fw);
-    encrypt(&dev, &dev.fw);
-  }
-
-  if (do_data_flash || do_data_verify) load_file(&dev, &dev.data);
-
-  if (do_code_flash || do_code_verify || do_data_flash) send_key(&dev);
-
-  /* Code flash */
-
-  if (do_code_flash) {
-    write_config(&dev);
-
-    erase_code_flash(&dev);
-    write_code_flash(&dev);
-
-    printf("Code flashing successful\n");
-  }
-
-  if (do_code_verify) {
-    verify_code_flash(&dev);
-
-    printf("Firmware is good\n");
-  }
-
-  /* Data flash */
-
-  if (do_data_flash) {
-    encrypt(&dev, &dev.data);
-    erase_data_flash(&dev);
-    write_data_flash(&dev);
-
-    printf("Data flashing successful\n");
-  }
-
-  if (do_data_verify || do_data_dump) read_data_flash(&dev);
-
-  if (do_data_verify) {
-    verify_data_flash(&dev);
-
-    printf("Data flash is good\n");
-  }
-
-  if (do_data_dump) {
-    dump_data_flash(&dev);
-
-    printf("Dumped data flash to file\n");
-  }
-
-  if (do_code_flash) reboot_device(&dev);
-
-  return 0;
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-file-style: "linux"
- * indent-tabs-mode: t
- * tab-width: 8
- * End:
- */
diff --git a/ch-flash/ch-flash.h b/ch-flash/ch-flash.h
deleted file mode 100644
index 331dc3e..0000000
--- a/ch-flash/ch-flash.h
+++ /dev/null
@@ -1,182 +0,0 @@
-/* Endpoints to use */
-#define EP_OUT 0x02
-#define EP_IN 0x82
-
-#define XOR_KEY_LEN 8
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <libusb-1.0/libusb.h>
-
-/* Profile of a specific CH device */
-struct ch_profile {
-	const char *name;
-
-	uint8_t type;		/* CH554 -> 0x54, ... */
-	uint8_t family;		/* CH55x-> 0x11, CH57x -> 0x13, ...*/
-
-	int mcu_id_len;		/* Number of bytes in the unique ID */
-
-	int code_flash_size;
-	int data_flash_size;
-
-	bool need_remove_wp;	/* remove CH32 write protect */
-	bool need_last_write;	/* chip needs an empty write */
-	bool clear_cfg_rom_read; /* Flashing will fail if this bit is set */
-};
-
-/* Content of either a file or one of the flash section */
-struct content {
-	char *filename;
-	bool encrypted;	/* whether the data in buf has been encrypted */
-	size_t len;
-	size_t max_flash_size;
-	uint8_t *buf;
-};
-
-/* Current device */
-struct device {
-	const struct ch_profile *profile;
-	bool debug;
-	struct content fw;
-	struct content data;	/* read data from */
-	struct content data_dump; /* write the data flash into */
-	libusb_device_handle *usb_h;
-	uint32_t bv;		/* bootloader version */
-	uint8_t id[8];
-	uint8_t config_data[12];
-	uint8_t xor_key[XOR_KEY_LEN];
-	bool wait_reboot_resp;	/* wait for reboot command response */
-};
-
-/* Enough to erase the flash. */
-#define USB_TIMEOUT 5000
-
-#define CMD_CHIP_TYPE        0xa1
-#define CMD_REBOOT           0xa2
-#define CMD_SET_KEY          0xa3
-#define CMD_ERASE_CODE_FLASH 0xa4
-#define CMD_WRITE_CODE_FLASH 0xa5
-#define CMD_CMP_CODE_FLASH   0xa6
-#define CMD_READ_CONFIG      0xa7
-#define CMD_WRITE_CONFIG     0xa8
-#define CMD_ERASE_DATA_FLASH 0xa9
-#define CMD_WRITE_DATA_FLASH 0xaa
-#define CMD_READ_DATA_FLASH  0xab
-
-struct req_hdr {
-	uint8_t command;
-	uint16_t data_len;	/* Number of bytes after the header */
-} __attribute__((__packed__));
-
-struct resp_hdr {
-	uint8_t command;
-	uint8_t _u0;
-	uint8_t data_len;	/* Number of bytes after the header */
-	uint8_t _u1;		/* possibly part of the length */
-} __attribute__((__packed__));
-
-struct req_get_chip_type {
-	struct req_hdr hdr;
-	uint8_t type;		/* CH554 -> 0x54, ... */
-	uint8_t family;		/* CH55x-> 0x11, CH57x -> 0x13, ...*/
-	uint8_t string[16];	/* "MCU ISP & WCH.CN" */
-} __attribute__((__packed__));
-
-struct resp_chip_type {
-	struct resp_hdr hdr;
-	uint8_t type;		/* CH554 -> 0x54, ... */
-	uint8_t family;		/* CH55x-> 0x11, CH57x -> 0x13, ...*/
-} __attribute__((__packed__));
-
-struct req_read_config {
-	struct req_hdr hdr;
-	uint16_t what;		/* bitfield of config types? */
-} __attribute__((__packed__));
-
-struct resp_read_config {
-	struct resp_hdr hdr;
-	uint16_t what;		/* same as command */
-	uint8_t config_data[12];	/* various configuration bits */
-	uint32_t bootloader_version; /* in big endian */
-	uint8_t id[7];		/* chip unique ID */
-	uint8_t id_checksum;
-} __attribute__((__packed__));
-
-struct req_write_config {
-	struct req_hdr hdr;
-	uint16_t what;		/* bitfield of config types? */
-	uint8_t config_data[12];
-} __attribute__((__packed__));
-
-struct resp_write_config {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-} __attribute__((__packed__));
-
-struct req_set_key {
-	struct req_hdr hdr;
-	uint8_t data[64];	/* obfuscated crap */
-} __attribute__((__packed__));
-
-struct resp_set_key {
-	struct resp_hdr hdr;
-	uint16_t key_checksum;
-} __attribute__((__packed__));
-
-struct req_erase_flash {
-	struct req_hdr hdr;
-	uint16_t length;	/* size in KiB, possibly just 1 byte to code it. */
-	uint16_t _u1;
-} __attribute__((__packed__));
-
-struct resp_erase_flash {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-} __attribute__((__packed__));
-
-struct req_flash_rw {
-	struct req_hdr hdr;
-	uint32_t offset;	/* ROM offset */
-	uint8_t _u1;		/* some checksum? */
-	uint8_t data[56];
-} __attribute__((__packed__));
-
-struct resp_flash_rw {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-} __attribute__((__packed__));
-
-struct req_reboot {
-	struct req_hdr hdr;
-	uint8_t option;
-} __attribute__((__packed__));
-
-struct resp_reboot {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-} __attribute__((__packed__));
-
-struct req_erase_data_flash {
-	struct req_hdr hdr;
-	uint32_t _u1;
-	uint8_t len;		/* length in KB? */
-} __attribute__((__packed__));
-
-struct resp_erase_data_flash {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-} __attribute__((__packed__));
-
-struct req_read_data_flash {
-	struct req_hdr hdr;
-	uint32_t offset;	/* Data offset */
-	uint16_t len;
-} __attribute__((__packed__));
-
-struct resp_read_data_flash {
-	struct resp_hdr hdr;
-	uint16_t return_code;
-	uint8_t data[58];
-} __attribute__((__packed__));