Segher Boessenkool
commit
15edfaae0f
|
|
@ -0,0 +1,3 @@
|
|||
*.b -crlf -diff -merge
|
||||
*.png -crlf -diff -merge
|
||||
*.ppm -crlf -diff -merge
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
*.o
|
||||
|
||||
.version
|
||||
|
||||
rzd?-?.?.bin
|
||||
rzd?.data
|
||||
|
||||
rzd??.elf
|
||||
rzd??.slot
|
||||
|
||||
title.bin
|
||||
|
||||
zero16k
|
||||
FAILURE
|
||||
|
|
@ -0,0 +1,340 @@
|
|||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 2, June 1991
|
||||
|
||||
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
|
||||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The licenses for most software are designed to take away your
|
||||
freedom to share and change it. By contrast, the GNU General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
||||
software--to make sure the software is free for all its users. This
|
||||
General Public License applies to most of the Free Software
|
||||
Foundation's software and to any other program whose authors commit to
|
||||
using it. (Some other Free Software Foundation software is covered by
|
||||
the GNU Library General Public License instead.) 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
|
||||
this service 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 make restrictions that forbid
|
||||
anyone to deny you these rights or to ask you to surrender the rights.
|
||||
These restrictions translate to certain responsibilities for you if you
|
||||
distribute copies of the software, or if you modify it.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must give the recipients all the rights that
|
||||
you have. 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.
|
||||
|
||||
We protect your rights with two steps: (1) copyright the software, and
|
||||
(2) offer you this license which gives you legal permission to copy,
|
||||
distribute and/or modify the software.
|
||||
|
||||
Also, for each author's protection and ours, we want to make certain
|
||||
that everyone understands that there is no warranty for this free
|
||||
software. If the software is modified by someone else and passed on, we
|
||||
want its recipients to know that what they have is not the original, so
|
||||
that any problems introduced by others will not reflect on the original
|
||||
authors' reputations.
|
||||
|
||||
Finally, any free program is threatened constantly by software
|
||||
patents. We wish to avoid the danger that redistributors of a free
|
||||
program will individually obtain patent licenses, in effect making the
|
||||
program proprietary. To prevent this, we have made it clear that any
|
||||
patent must be licensed for everyone's free use or not licensed at all.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||
|
||||
0. This License applies to any program or other work which contains
|
||||
a notice placed by the copyright holder saying it may be distributed
|
||||
under the terms of this General Public License. The "Program", below,
|
||||
refers to any such program or work, and a "work based on the Program"
|
||||
means either the Program or any derivative work under copyright law:
|
||||
that is to say, a work containing the Program or a portion of it,
|
||||
either verbatim or with modifications and/or translated into another
|
||||
language. (Hereinafter, translation is included without limitation in
|
||||
the term "modification".) Each licensee is addressed as "you".
|
||||
|
||||
Activities other than copying, distribution and modification are not
|
||||
covered by this License; they are outside its scope. The act of
|
||||
running the Program is not restricted, and the output from the Program
|
||||
is covered only if its contents constitute a work based on the
|
||||
Program (independent of having been made by running the Program).
|
||||
Whether that is true depends on what the Program does.
|
||||
|
||||
1. You may copy and distribute 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 and disclaimer of warranty; keep intact all the
|
||||
notices that refer to this License and to the absence of any warranty;
|
||||
and give any other recipients of the Program a copy of this License
|
||||
along with the Program.
|
||||
|
||||
You may charge a fee for the physical act of transferring a copy, and
|
||||
you may at your option offer warranty protection in exchange for a fee.
|
||||
|
||||
2. You may modify your copy or copies of the Program or any portion
|
||||
of it, thus forming a work based on the Program, and copy and
|
||||
distribute such modifications or work under the terms of Section 1
|
||||
above, provided that you also meet all of these conditions:
|
||||
|
||||
a) You must cause the modified files to carry prominent notices
|
||||
stating that you changed the files and the date of any change.
|
||||
|
||||
b) You must cause any work that you distribute or publish, that in
|
||||
whole or in part contains or is derived from the Program or any
|
||||
part thereof, to be licensed as a whole at no charge to all third
|
||||
parties under the terms of this License.
|
||||
|
||||
c) If the modified program normally reads commands interactively
|
||||
when run, you must cause it, when started running for such
|
||||
interactive use in the most ordinary way, to print or display an
|
||||
announcement including an appropriate copyright notice and a
|
||||
notice that there is no warranty (or else, saying that you provide
|
||||
a warranty) and that users may redistribute the program under
|
||||
these conditions, and telling the user how to view a copy of this
|
||||
License. (Exception: if the Program itself is interactive but
|
||||
does not normally print such an announcement, your work based on
|
||||
the Program is not required to print an announcement.)
|
||||
|
||||
These requirements apply to the modified work as a whole. If
|
||||
identifiable sections of that work are not derived from the Program,
|
||||
and can be reasonably considered independent and separate works in
|
||||
themselves, then this License, and its terms, do not apply to those
|
||||
sections when you distribute them as separate works. But when you
|
||||
distribute the same sections as part of a whole which is a work based
|
||||
on the Program, the distribution of the whole must be on the terms of
|
||||
this License, whose permissions for other licensees extend to the
|
||||
entire whole, and thus to each and every part regardless of who wrote it.
|
||||
|
||||
Thus, it is not the intent of this section to claim rights or contest
|
||||
your rights to work written entirely by you; rather, the intent is to
|
||||
exercise the right to control the distribution of derivative or
|
||||
collective works based on the Program.
|
||||
|
||||
In addition, mere aggregation of another work not based on the Program
|
||||
with the Program (or with a work based on the Program) on a volume of
|
||||
a storage or distribution medium does not bring the other work under
|
||||
the scope of this License.
|
||||
|
||||
3. You may copy and distribute the Program (or a work based on it,
|
||||
under Section 2) in object code or executable form under the terms of
|
||||
Sections 1 and 2 above provided that you also do one of the following:
|
||||
|
||||
a) Accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of Sections
|
||||
1 and 2 above on a medium customarily used for software interchange; or,
|
||||
|
||||
b) Accompany it with a written offer, valid for at least three
|
||||
years, to give any third party, for a charge no more than your
|
||||
cost of physically performing source distribution, a complete
|
||||
machine-readable copy of the corresponding source code, to be
|
||||
distributed under the terms of Sections 1 and 2 above on a medium
|
||||
customarily used for software interchange; or,
|
||||
|
||||
c) Accompany it with the information you received as to the offer
|
||||
to distribute corresponding source code. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form with such
|
||||
an offer, in accord with Subsection b above.)
|
||||
|
||||
The source code for a work means the preferred form of the work for
|
||||
making modifications to it. For an executable work, complete source
|
||||
code means all the source code for all modules it contains, plus any
|
||||
associated interface definition files, plus the scripts used to
|
||||
control compilation and installation of the executable. However, as a
|
||||
special exception, the source code distributed need not include
|
||||
anything that is normally distributed (in either source or binary
|
||||
form) with the major components (compiler, kernel, and so on) of the
|
||||
operating system on which the executable runs, unless that component
|
||||
itself accompanies the executable.
|
||||
|
||||
If distribution of executable or object code is made by offering
|
||||
access to copy from a designated place, then offering equivalent
|
||||
access to copy the source code from the same place counts as
|
||||
distribution of the source code, even though third parties are not
|
||||
compelled to copy the source along with the object code.
|
||||
|
||||
4. You may not copy, modify, sublicense, or distribute the Program
|
||||
except as expressly provided under this License. Any attempt
|
||||
otherwise to copy, modify, sublicense or distribute the Program is
|
||||
void, and will automatically terminate your rights under this License.
|
||||
However, parties who have received copies, or rights, from you under
|
||||
this License will not have their licenses terminated so long as such
|
||||
parties remain in full compliance.
|
||||
|
||||
5. You are not required to accept this License, since you have not
|
||||
signed it. However, nothing else grants you permission to modify or
|
||||
distribute the Program or its derivative works. These actions are
|
||||
prohibited by law if you do not accept this License. Therefore, by
|
||||
modifying or distributing the Program (or any work based on the
|
||||
Program), you indicate your acceptance of this License to do so, and
|
||||
all its terms and conditions for copying, distributing or modifying
|
||||
the Program or works based on it.
|
||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the
|
||||
original licensor to copy, distribute or modify the Program subject to
|
||||
these terms and conditions. You may not impose any further
|
||||
restrictions on the recipients' exercise of the rights granted herein.
|
||||
You are not responsible for enforcing compliance by third parties to
|
||||
this License.
|
||||
|
||||
7. If, as a consequence of a court judgment or allegation of patent
|
||||
infringement or for any other reason (not limited to patent issues),
|
||||
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
|
||||
distribute so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you
|
||||
may not distribute the Program at all. For example, if a patent
|
||||
license would not permit royalty-free redistribution of the Program by
|
||||
all those who receive copies directly or indirectly through you, then
|
||||
the only way you could satisfy both it and this License would be to
|
||||
refrain entirely from distribution of the Program.
|
||||
|
||||
If any portion of this section is held invalid or unenforceable under
|
||||
any particular circumstance, the balance of the section is intended to
|
||||
apply and the section as a whole is intended to apply in other
|
||||
circumstances.
|
||||
|
||||
It is not the purpose of this section to induce you to infringe any
|
||||
patents or other property right claims or to contest validity of any
|
||||
such claims; this section has the sole purpose of protecting the
|
||||
integrity of the free software distribution system, which is
|
||||
implemented by public license practices. Many people have made
|
||||
generous contributions to the wide range of software distributed
|
||||
through that system in reliance on consistent application of that
|
||||
system; it is up to the author/donor to decide if he or she is willing
|
||||
to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest of this License.
|
||||
|
||||
8. If the distribution and/or use of the Program is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Program under this License
|
||||
may add an explicit geographical distribution limitation excluding
|
||||
those countries, so that distribution is permitted only in or among
|
||||
countries not thus excluded. In such case, this License incorporates
|
||||
the limitation as if written in the body of this License.
|
||||
|
||||
9. The Free Software Foundation may publish revised and/or new versions
|
||||
of the 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 a version number of this License which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
this License, you may choose any version ever published by the Free Software
|
||||
Foundation.
|
||||
|
||||
10. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.
|
||||
|
||||
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE 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.
|
||||
|
||||
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
|
||||
convey 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 2 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, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
Gnomovision version 69, Copyright (C) year name of author
|
||||
Gnomovision 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, the commands you use may
|
||||
be called something other than `show w' and `show c'; they could even be
|
||||
mouse-clicks or menu items--whatever suits your program.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This 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 Library General
|
||||
Public License instead of this License.
|
||||
|
|
@ -0,0 +1,151 @@
|
|||
# Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
|
||||
# Configuration:
|
||||
|
||||
# What toolchain prefix should we use
|
||||
CROSS ?= broadway-
|
||||
|
||||
# Where are the tools (http://git.infradead.org/users/segher/wii.git)
|
||||
TOOLS ?= $(HOME)/wii/segher
|
||||
|
||||
# End of configuration.
|
||||
|
||||
|
||||
|
||||
# Set CC, LD, OBJCOPY based on CROSS, unless they are set already
|
||||
|
||||
ifeq ($(origin CC), default)
|
||||
CC := $(CROSS)gcc -m32
|
||||
endif
|
||||
ifeq ($(origin LD), default)
|
||||
LD := $(CROSS)ld
|
||||
endif
|
||||
OBJCOPY ?= $(CROSS)objcopy
|
||||
|
||||
|
||||
# The compiler flags we need.
|
||||
|
||||
CFLAGS := -Wall -W -Os -ffreestanding -mno-eabi -mno-sdata -mcpu=750
|
||||
|
||||
|
||||
# Build with "V=1" to see the commands executed; be quiet otherwise.
|
||||
|
||||
ifeq ($(V),1)
|
||||
Q :=
|
||||
else
|
||||
Q := @
|
||||
MAKEFLAGS += --no-print-directory
|
||||
endif
|
||||
|
||||
|
||||
targets := rzde-3.2.bin rzde-3.3.bin rzde-3.4.bin
|
||||
targets += rzdj-3.2.bin rzdj-3.3.bin rzdj-3.4.bin
|
||||
targets += rzdp-3.2.bin rzdp-3.3.bin rzdp-3.4.bin
|
||||
targets-short := rzde rzdj rzdp
|
||||
|
||||
objs := twilight.o
|
||||
|
||||
ppms := $(targets-short:%=%-icon.ppm) generic-banner.ppm
|
||||
assets := title.bin $(ppms)
|
||||
|
||||
loader := loader/loader.bin
|
||||
|
||||
|
||||
titleid = $(shell perl titleid.pl $(1))
|
||||
|
||||
|
||||
# System menu 3.3 checks for the exploit, when a) you copy a save from SD,
|
||||
# and b) when the menu starts up; but for a) it only looks at the first
|
||||
# zeldaTp.dat file, and for b) it allows any file of non-aligned length.
|
||||
#
|
||||
# System menu 3.4 only looks at the last file in the wad when installing.
|
||||
#
|
||||
# System menu 4.0 finally avoids such silly bugs.
|
||||
|
||||
define twintig
|
||||
D=$(call titleid,$(1)); \
|
||||
$(TOOLS)/twintig $$D $@ toc-$1
|
||||
endef
|
||||
|
||||
|
||||
all: $(targets)
|
||||
|
||||
$(filter %-3.2.bin,$(targets)): %-3.2.bin: %.data
|
||||
$(filter %-3.3.bin,$(targets)): %-3.3.bin: %.data zero16k
|
||||
$(filter %-3.4.bin,$(targets)): %-3.4.bin: %.data FAILURE
|
||||
$(targets): %.bin: toc-% $(assets)
|
||||
@echo " TWINTIG $@"
|
||||
$(Q)$(call twintig,$*)
|
||||
|
||||
saves := $(targets-short:%=%.data)
|
||||
|
||||
rzde.data: rzde0.slot rzde2.slot
|
||||
rzdp.data: rzdp0.slot
|
||||
rzdj.data: rzdj0.slot
|
||||
$(saves): $(loader)
|
||||
@echo " ZELDAPACK $@"
|
||||
$(Q)./pack.sh $@ $(filter %.slot,$^)
|
||||
$(Q)$(TOOLS)/zelda-cksum $@
|
||||
$(Q)cat $(loader) >> $@
|
||||
$(Q)printf '\0' >> $@
|
||||
|
||||
slots := rzde0.slot rzde2.slot rzdj0.slot rzdp0.slot
|
||||
|
||||
$(slots): %.slot: %.elf
|
||||
@echo " OBJCOPY $@"
|
||||
$(Q)$(OBJCOPY) -Obinary $< $@
|
||||
|
||||
elfs := $(slots:.slot=.elf)
|
||||
|
||||
rzde0.elf: baddr := 0x8046a3e0+0
|
||||
rzde2.elf: baddr := 0x804519e0+0x0a94
|
||||
rzdj0.elf: baddr := 0x8044f860+0
|
||||
rzdp0.elf: baddr := 0x804522e0+0
|
||||
$(elfs): %.elf: twilight.lds %.o $(objs)
|
||||
@echo " LINK $@"
|
||||
$(Q)$(LD) --defsym baddr=$(baddr) -T $^ -o $@
|
||||
|
||||
exploit-objs := $(elfs:.elf=.o)
|
||||
|
||||
$(exploit-objs): slot-name := Twilight Hack
|
||||
rzde0.o: slot-name := TwilightHack0
|
||||
rzde2.o: slot-name := TwilightHack2
|
||||
$(exploit-objs): %.o: start.S head.b
|
||||
@echo " ASSEMBLE $@"
|
||||
$(Q)$(CC) $(CFLAGS) -D NAME="$(slot-name)" -c $< -o $@
|
||||
|
||||
%.o: %.c
|
||||
@echo " COMPILE $@"
|
||||
$(Q)$(CC) $(CFLAGS) -c $< -o $@
|
||||
|
||||
title.bin: .version
|
||||
@echo " TITLEBIN $@"
|
||||
$(Q)perl make-title-bin.pl > $@
|
||||
|
||||
.version: FORCE
|
||||
$(Q)./describe.sh > .$@-tmp
|
||||
$(Q)cmp -s $@ .$@-tmp || cp .$@-tmp $@
|
||||
$(Q)rm .$@-tmp
|
||||
|
||||
$(ppms): %.ppm: %.png
|
||||
@echo " PPM $@"
|
||||
$(Q)convert $< $@
|
||||
|
||||
zero16k:
|
||||
$(Q)dd if=/dev/zero bs=16384 count=1 2>/dev/null > $@
|
||||
|
||||
FAILURE:
|
||||
$(Q)echo FAILURE > $@
|
||||
|
||||
$(loader): FORCE .version
|
||||
$(Q)$(MAKE) -C loader
|
||||
|
||||
FORCE:
|
||||
|
||||
clean:
|
||||
-rm -f $(targets) $(saves) $(elfs) $(exploit-objs) $(objs) $(slots)
|
||||
-rm -f .version title.bin zero16k FAILURE
|
||||
$(MAKE) -C loader clean
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
Copyright 2008 Haxx Enterprises <bushing@gmail.com>
|
||||
Copyright 2008 Hector Martin "marcan" <marcan@marcansoft.com>
|
||||
Copyright 2003-2004 Felix Domke <tmbinc@elitedvb.net>
|
||||
|
||||
This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
Console font created by Freddy Leitner [www.dreamer.de], based on
|
||||
the Droid Sans Mono font [www.droidfonts.com].
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
#!/bin/bash
|
||||
|
||||
# Check for git and a git repo.
|
||||
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
|
||||
echo -n `git describe`
|
||||
|
||||
# Are there uncommitted changes?
|
||||
git update-index --refresh --unmerged > /dev/null
|
||||
git diff-index --quiet HEAD || echo -n -dirty
|
||||
fi
|
||||
|
||||
echo
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 11 KiB |
Binary file not shown.
|
|
@ -0,0 +1,5 @@
|
|||
font.c
|
||||
version.c
|
||||
|
||||
loader.elf
|
||||
loader.bin
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
# Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
CROSS ?= broadway-
|
||||
|
||||
|
||||
ifeq ($(origin CC), default)
|
||||
CC := $(CROSS)gcc -m32
|
||||
endif
|
||||
ifeq ($(origin LD), default)
|
||||
LD := $(CROSS)ld
|
||||
endif
|
||||
OBJCOPY ?= $(CROSS)objcopy
|
||||
|
||||
|
||||
CFLAGS := -Wall -W -Os -ffreestanding -std=gnu99 -Wstrict-aliasing=2 \
|
||||
-mno-eabi -mno-sdata -mcpu=750
|
||||
|
||||
|
||||
targets := loader.bin
|
||||
|
||||
objs := crt0.o main.o string.o video.o ios.o sd.o fat.o elf.o sync.o font.o \
|
||||
console.o exception.o exception_2200.o usbgecko.o time.o version.o
|
||||
ppms := font.ppm
|
||||
|
||||
|
||||
ifeq ($(V),1)
|
||||
Q :=
|
||||
else
|
||||
Q := @
|
||||
MAKEFLAGS += --no-print-directory
|
||||
endif
|
||||
|
||||
|
||||
all: $(targets)
|
||||
|
||||
$(targets): %.bin: %.elf
|
||||
@echo " OBJCOPY $@"
|
||||
$(Q)$(OBJCOPY) -O binary $< $@
|
||||
|
||||
elfs := $(targets:.bin=.elf)
|
||||
$(elfs): %.elf: %.lds $(objs)
|
||||
@echo " LINK $@"
|
||||
$(Q)$(LD) $(LDFLAGS) -n -T $^ -o $@
|
||||
|
||||
%.o: %.c loader.h
|
||||
@echo " COMPILE $@"
|
||||
$(Q)$(CC) $(CFLAGS) -c $< -o $@
|
||||
|
||||
crt0.o exception_2200.o: %.o: %.s
|
||||
@echo " ASSEMBLE $@"
|
||||
$(Q)$(CC) $(CFLAGS) -c $< -o $@
|
||||
|
||||
version.c: ../.version
|
||||
@echo " VERSION $@"
|
||||
$(Q)echo "const char version[] = \"`cat $^` (`whoami`@`hostname -s`)\";" > $@
|
||||
|
||||
../.version: FORCE
|
||||
$(Q)$(MAKE) -C .. .version
|
||||
|
||||
$(ppms): %.ppm: %.png
|
||||
@echo " PPM $@"
|
||||
$(Q)convert $< $@
|
||||
|
||||
font.c: %.c: %.ppm font2c.pl
|
||||
@echo " FONT2C $@"
|
||||
$(Q)perl font2c.pl < $*.ppm > $@
|
||||
|
||||
FORCE:
|
||||
|
||||
clean:
|
||||
rm -rf $(objs) $(targets) $(elfs) font.c version.c
|
||||
|
|
@ -0,0 +1,153 @@
|
|||
// Copyright 2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
static void put(char c)
|
||||
{
|
||||
fb_putc(c);
|
||||
usbgecko_console_putc(c);
|
||||
}
|
||||
|
||||
|
||||
// __umoddi3() and friends are very big, and more general than we need:
|
||||
// radix is always (very) small, so we can work by much bigger chunks
|
||||
// than single bits, always.
|
||||
static int extract_dig(u64 *x, u32 radix)
|
||||
{
|
||||
u32 hi = *x >> 32;
|
||||
u32 lo = *x;
|
||||
u32 mod = hi % radix;
|
||||
hi /= radix;
|
||||
u32 n = (mod << 16) | (lo >> 16);
|
||||
mod = n % radix;
|
||||
n /= radix;
|
||||
lo = (mod << 16) | (lo & 0xffff);
|
||||
mod = lo % radix;
|
||||
lo /= radix;
|
||||
lo |= (n << 16);
|
||||
*x = ((u64)hi << 32) | lo;
|
||||
return mod;
|
||||
}
|
||||
|
||||
|
||||
// This implements conversions %{0}{number}{l,ll}[%cdsux] only.
|
||||
// Field length is obeyed for numbers only.
|
||||
// Always returns 0.
|
||||
|
||||
int printf(const char *restrict format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, format);
|
||||
|
||||
while (*format) {
|
||||
if (*format != '%') {
|
||||
put(*format++);
|
||||
continue;
|
||||
}
|
||||
format++;
|
||||
|
||||
int zero = 0;
|
||||
int prec = 0;
|
||||
|
||||
if (*format == '0') {
|
||||
zero = 1;
|
||||
format++;
|
||||
}
|
||||
|
||||
while (*format >= '0' && *format <= '9')
|
||||
prec = 10*prec + (*format++ - '0');
|
||||
|
||||
int ll = 0;
|
||||
while (*format == 'l') {
|
||||
ll++;
|
||||
format++;
|
||||
}
|
||||
|
||||
int radix = 10;
|
||||
int is_signed = 1;
|
||||
|
||||
switch (*format++) {
|
||||
case '%':
|
||||
put('%');
|
||||
break;
|
||||
|
||||
case 'c':
|
||||
put(va_arg(ap, int));
|
||||
break;
|
||||
|
||||
case 's':
|
||||
;
|
||||
char *s = va_arg(ap, char *);
|
||||
while (*s)
|
||||
put(*s++);
|
||||
break;
|
||||
|
||||
case 'x':
|
||||
radix = 16;
|
||||
|
||||
case 'u':
|
||||
is_signed = 0;
|
||||
|
||||
case 'd':
|
||||
;
|
||||
u64 x;
|
||||
if (is_signed) {
|
||||
if (ll == 0)
|
||||
x = va_arg(ap, int);
|
||||
else if (ll == 1)
|
||||
x = va_arg(ap, long);
|
||||
else
|
||||
x = va_arg(ap, long long);
|
||||
} else {
|
||||
if (ll == 0)
|
||||
x = va_arg(ap, unsigned int);
|
||||
else if (ll == 1)
|
||||
x = va_arg(ap, unsigned long);
|
||||
else
|
||||
x = va_arg(ap, unsigned long long);
|
||||
}
|
||||
|
||||
if (is_signed) {
|
||||
if ((long long)x < 0)
|
||||
x = -x;
|
||||
else
|
||||
is_signed = 0;
|
||||
}
|
||||
|
||||
char hold[22];
|
||||
char *hld = &hold[sizeof hold];
|
||||
*--hld = 0;
|
||||
|
||||
int len = 0;
|
||||
do {
|
||||
int dig = extract_dig(&x, radix);
|
||||
if (dig >= 10)
|
||||
dig += 'a' - 10;
|
||||
else
|
||||
dig += '0';
|
||||
*--hld = dig;
|
||||
len++;
|
||||
} while (x);
|
||||
if (is_signed)
|
||||
*--hld = '-';
|
||||
|
||||
while (len < prec) {
|
||||
put(zero ? '0' : ' ');
|
||||
len++;
|
||||
}
|
||||
while (*hld)
|
||||
put(*hld++);
|
||||
}
|
||||
}
|
||||
|
||||
va_end(ap);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
# Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
|
||||
.globl _start
|
||||
_start:
|
||||
|
||||
# Disable interrupts, enable FP.
|
||||
mfmsr 3 ; rlwinm 3,3,0,17,15 ; ori 3,3,0x2000 ; mtmsr 3 ; isync
|
||||
|
||||
# Setup stack.
|
||||
lis 1,_stack_top@ha ; addi 1,1,_stack_top@l ; li 0,0 ; stwu 0,-64(1)
|
||||
|
||||
# Clear BSS.
|
||||
lis 3,__bss_start@ha ; addi 3,3,__bss_start@l
|
||||
li 4,0
|
||||
lis 5,__bss_end@ha ; addi 5,5,__bss_end@l ; sub 5,5,3
|
||||
bl memset
|
||||
|
||||
# Go!
|
||||
bl main
|
||||
|
||||
# If it returns, hang. Shouldn't happen.
|
||||
b .
|
||||
|
|
@ -0,0 +1,47 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
// Determine if a valid ELF image exists at the given memory location.
|
||||
|
||||
int valid_elf_image(void *addr)
|
||||
{
|
||||
u32 *header = addr;
|
||||
|
||||
return header[0] == 0x7f454c46 // ELF
|
||||
&& header[1] == 0x01020100 // 32-bit, BE, ELF v1, SVR
|
||||
&& header[4] == 0x00020014 // executable, PowerPC
|
||||
&& header[5] == 1 // object file v1
|
||||
&& (header[10] & 0xffff) == 32; // PHDR size
|
||||
}
|
||||
|
||||
|
||||
// Returns the entry point address.
|
||||
|
||||
void *load_elf_image(void *addr)
|
||||
{
|
||||
u32 *header = addr;
|
||||
u32 *phdr = addr + header[7];
|
||||
u32 n = header[11] >> 16;
|
||||
u32 i;
|
||||
|
||||
for (i = 0; i < n; i++, phdr += 8) {
|
||||
if (phdr[0] != 1) // PT_LOAD
|
||||
continue;
|
||||
|
||||
u32 off = phdr[1];
|
||||
void *dest = (void *)phdr[3];
|
||||
u32 filesz = phdr[4];
|
||||
u32 memsz = phdr[5];
|
||||
|
||||
memcpy(dest, addr + off, filesz);
|
||||
memset(dest + filesz, 0, memsz - filesz);
|
||||
|
||||
sync_before_exec(dest, memsz);
|
||||
}
|
||||
|
||||
return (void *)header[6];
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
extern char exception_2200_start, exception_2200_end;
|
||||
|
||||
void exception_handler(int exception)
|
||||
{
|
||||
u32 *x;
|
||||
u32 i;
|
||||
|
||||
printf("\nException %04x occurred!\n", exception);
|
||||
|
||||
x = (u32 *)0x80002000;
|
||||
|
||||
printf("\n R0..R7 R8..R15 R16..R23 R24..R31\n");
|
||||
for (i = 0; i < 8; i++) {
|
||||
printf("%08x %08x %08x %08x\n", x[0], x[8], x[16], x[24]);
|
||||
x++;
|
||||
}
|
||||
x += 24;
|
||||
|
||||
printf("\n CR/XER LR/CTR SRR0/SRR1 DAR/DSISR\n");
|
||||
for (i = 0; i < 2; i++) {
|
||||
printf("%08x %08x %08x %08x\n", x[0], x[2], x[4], x[6]);
|
||||
x++;
|
||||
}
|
||||
|
||||
// Hang.
|
||||
for (;;)
|
||||
;
|
||||
}
|
||||
|
||||
void exception_init(void)
|
||||
{
|
||||
u32 vector;
|
||||
u32 len_2200;
|
||||
|
||||
for (vector = 0x100; vector < 0x2000; vector += 0x10) {
|
||||
u32 *insn = (u32 *)(0x80000000 + vector);
|
||||
|
||||
insn[0] = 0xbc002000; // stmw 0,0x2000(0)
|
||||
insn[1] = 0x38600000 | (u32)vector; // li 3,vector
|
||||
insn[2] = 0x48002202; // ba 0x2200
|
||||
insn[3] = 0;
|
||||
}
|
||||
sync_before_exec((void *)0x80000100, 0x1f00);
|
||||
|
||||
len_2200 = &exception_2200_end - &exception_2200_start;
|
||||
memcpy((void *)0x80002200, &exception_2200_start, len_2200);
|
||||
sync_before_exec((void *)0x80002200, len_2200);
|
||||
}
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
# Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
.globl exception_2200_start, exception_2200_end
|
||||
|
||||
exception_2200_start:
|
||||
# store all interesting regs
|
||||
mfcr 0 ; stw 0,0x2080(0)
|
||||
mfxer 0 ; stw 0,0x2084(0)
|
||||
mflr 0 ; stw 0,0x2088(0)
|
||||
mfctr 0 ; stw 0,0x208c(0)
|
||||
mfsrr0 0 ; stw 0,0x2090(0)
|
||||
mfsrr1 0 ; stw 0,0x2094(0)
|
||||
mfdar 0 ; stw 0,0x2098(0)
|
||||
mfdsisr 0 ; stw 0,0x209c(0)
|
||||
|
||||
# switch on FP, DR, IR
|
||||
mfmsr 0 ; ori 0,0,0x2030 ; mtsrr1 0
|
||||
|
||||
# go to C handler
|
||||
lis 0,exception_handler@h ; ori 0,0,exception_handler@l ; mtsrr0 0
|
||||
rfi
|
||||
exception_2200_end:
|
||||
|
|
@ -0,0 +1,425 @@
|
|||
// Copyright 2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
#ifdef FAT_TEST
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
|
||||
#define RAW_BUF 0x200
|
||||
static u8 raw_buf[RAW_BUF] __attribute__((aligned(32)));
|
||||
|
||||
static int raw_read(u32 sector)
|
||||
{
|
||||
static u32 current = -1;
|
||||
|
||||
if (current == sector)
|
||||
return 0;
|
||||
current = sector;
|
||||
|
||||
return sd_read_sector(raw_buf, sector);
|
||||
}
|
||||
|
||||
static u64 partition_start_offset;
|
||||
|
||||
static int read(u8 *data, u64 offset, u32 len)
|
||||
{
|
||||
offset += partition_start_offset;
|
||||
|
||||
while (len) {
|
||||
u32 buf_off = offset % RAW_BUF;
|
||||
u32 n;
|
||||
|
||||
n = RAW_BUF - buf_off;
|
||||
if (n > len)
|
||||
n = len;
|
||||
|
||||
int err = raw_read(offset / RAW_BUF);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
memcpy(data, raw_buf + buf_off, n);
|
||||
|
||||
data += n;
|
||||
offset += n;
|
||||
len -= n;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static u32 bytes_per_cluster;
|
||||
static u32 root_entries;
|
||||
static u32 clusters;
|
||||
static u32 fat_type; // 12, 16, or 32
|
||||
|
||||
static u64 fat_offset;
|
||||
static u64 root_offset;
|
||||
static u64 data_offset;
|
||||
|
||||
|
||||
static u32 get_fat(u32 cluster)
|
||||
{
|
||||
u8 fat[4];
|
||||
|
||||
u32 offset_bits = cluster*fat_type;
|
||||
int err = read(fat, fat_offset + offset_bits/8, 4);
|
||||
if (err)
|
||||
return 0;
|
||||
|
||||
u32 res = le32(fat) >> (offset_bits % 8);
|
||||
res &= (1 << fat_type) - 1;
|
||||
res &= 0x0fffffff; // for FAT32
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
static u64 extent_offset;
|
||||
static u32 extent_len;
|
||||
static u32 extent_next_cluster;
|
||||
|
||||
static void get_extent(u32 cluster)
|
||||
{
|
||||
extent_len = 0;
|
||||
extent_next_cluster = 0;
|
||||
|
||||
if (cluster == 0) { // Root directory.
|
||||
if (fat_type != 32) {
|
||||
extent_offset = root_offset;
|
||||
extent_len = 0x20*root_entries;
|
||||
|
||||
return;
|
||||
}
|
||||
cluster = root_offset;
|
||||
}
|
||||
|
||||
if (cluster - 2 >= clusters)
|
||||
return;
|
||||
|
||||
extent_offset = data_offset + (u64)bytes_per_cluster*(cluster - 2);
|
||||
|
||||
for (;;) {
|
||||
extent_len += bytes_per_cluster;
|
||||
|
||||
u32 next_cluster = get_fat(cluster);
|
||||
|
||||
if (next_cluster - 2 >= clusters)
|
||||
break;
|
||||
|
||||
if (next_cluster != cluster + 1) {
|
||||
extent_next_cluster = next_cluster;
|
||||
break;
|
||||
}
|
||||
|
||||
cluster = next_cluster;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int read_extent(u8 *data, u32 len)
|
||||
{
|
||||
while (len) {
|
||||
if (extent_len == 0)
|
||||
return -1;
|
||||
|
||||
u32 this = len;
|
||||
if (this > extent_len)
|
||||
this = extent_len;
|
||||
|
||||
int err = read(data, extent_offset, this);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
extent_offset += this;
|
||||
extent_len -= this;
|
||||
|
||||
data += this;
|
||||
len -= this;
|
||||
|
||||
if (extent_len == 0 && extent_next_cluster)
|
||||
get_extent(extent_next_cluster);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int fat_read(void *data, u32 len)
|
||||
{
|
||||
return read_extent(data, len);
|
||||
}
|
||||
|
||||
|
||||
static u8 fat_name[11];
|
||||
|
||||
static u8 ucase(char c)
|
||||
{
|
||||
if (c >= 'a' && c <= 'z')
|
||||
return c - 'a' + 'A';
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
static const char *parse_component(const char *path)
|
||||
{
|
||||
u32 i = 0;
|
||||
|
||||
while (*path == '/')
|
||||
path++;
|
||||
|
||||
while (*path && *path != '/' && *path != '.') {
|
||||
if (i < 8)
|
||||
fat_name[i++] = ucase(*path);
|
||||
path++;
|
||||
}
|
||||
|
||||
while (i < 8)
|
||||
fat_name[i++] = ' ';
|
||||
|
||||
if (*path == '.')
|
||||
path++;
|
||||
|
||||
while (*path && *path != '/') {
|
||||
if (i < 11)
|
||||
fat_name[i++] = ucase(*path);
|
||||
path++;
|
||||
}
|
||||
|
||||
while (i < 11)
|
||||
fat_name[i++] = ' ';
|
||||
|
||||
if (fat_name[0] == 0xe5)
|
||||
fat_name[0] = 0x05;
|
||||
|
||||
return path;
|
||||
}
|
||||
|
||||
|
||||
u32 fat_file_size;
|
||||
|
||||
int fat_open(const char *name)
|
||||
{
|
||||
u32 cluster = 0;
|
||||
|
||||
while (*name) {
|
||||
get_extent(cluster);
|
||||
|
||||
name = parse_component(name);
|
||||
|
||||
while (extent_len) {
|
||||
u8 dir[0x20];
|
||||
|
||||
int err = read_extent(dir, 0x20);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (dir[0] == 0)
|
||||
return -1;
|
||||
|
||||
if (dir[0x0b] & 0x08) // volume label or LFN
|
||||
continue;
|
||||
if (dir[0x00] == 0xe5) // deleted file
|
||||
continue;
|
||||
|
||||
if (!!*name != !!(dir[0x0b] & 0x10)) // dir vs. file
|
||||
continue;
|
||||
|
||||
if (memcmp(fat_name, dir, 11) == 0) {
|
||||
cluster = le16(dir + 0x1a);
|
||||
if (fat_type == 32)
|
||||
cluster |= le16(dir + 0x14) << 16;
|
||||
|
||||
if (*name == 0) {
|
||||
fat_file_size = le32(dir + 0x1c);
|
||||
get_extent(cluster);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
#ifdef FAT_TEST
|
||||
static void print_dir_entry(u8 *dir)
|
||||
{
|
||||
int i, n;
|
||||
|
||||
if (dir[0x0b] & 0x08) // volume label or LFN
|
||||
return;
|
||||
if (dir[0x00] == 0xe5) // deleted file
|
||||
return;
|
||||
|
||||
if (fat_type == 32) {
|
||||
fprintf(stderr, "#%04x", le16(dir + 0x14));
|
||||
fprintf(stderr, "%04x ", le16(dir + 0x1a));
|
||||
} else
|
||||
fprintf(stderr, "#%04x ", le16(dir + 0x1a)); // start cluster
|
||||
u16 date = le16(dir + 0x18);
|
||||
fprintf(stderr, "%04d-%02d-%02d ", 1980 + (date >> 9), (date >> 5) & 0x0f, date & 0x1f);
|
||||
u16 time = le16(dir + 0x16);
|
||||
fprintf(stderr, "%02d:%02d:%02d ", time >> 11, (time >> 5) & 0x3f, 2*(time & 0x1f));
|
||||
fprintf(stderr, "%10d ", le32(dir + 0x1c)); // file size
|
||||
u8 attr = dir[0x0b];
|
||||
for (i = 0; i < 6; i++)
|
||||
fprintf(stderr, "%c", (attr & (1 << i)) ? "RHSLDA"[i] : ' ');
|
||||
fprintf(stderr, " ");
|
||||
for (n = 8; n && dir[n - 1] == ' '; n--)
|
||||
;
|
||||
for (i = 0; i < n; i++)
|
||||
fprintf(stderr, "%c", dir[i]);
|
||||
for (n = 3; n && dir[8 + n - 1] == ' '; n--)
|
||||
;
|
||||
if (n) {
|
||||
fprintf(stderr, ".");
|
||||
for (i = 0; i < n; i++)
|
||||
fprintf(stderr, "%c", dir[8 + i]);
|
||||
}
|
||||
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
|
||||
|
||||
int print_dir(u32 cluster)
|
||||
{
|
||||
u8 dir[0x20];
|
||||
|
||||
get_extent(cluster);
|
||||
|
||||
while (extent_len) {
|
||||
int err = read_extent(dir, 0x20);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (dir[0] == 0)
|
||||
break;
|
||||
|
||||
print_dir_entry(dir);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static int fat_init_fs(const u8 *sb)
|
||||
{
|
||||
u32 bytes_per_sector = le16(sb + 0x0b);
|
||||
u32 sectors_per_cluster = sb[0x0d];
|
||||
bytes_per_cluster = bytes_per_sector * sectors_per_cluster;
|
||||
|
||||
u32 reserved_sectors = le16(sb + 0x0e);
|
||||
u32 fats = sb[0x10];
|
||||
root_entries = le16(sb + 0x11);
|
||||
u32 total_sectors = le16(sb + 0x13);
|
||||
u32 sectors_per_fat = le16(sb + 0x16);
|
||||
|
||||
// For FAT16 and FAT32:
|
||||
if (total_sectors == 0)
|
||||
total_sectors = le32(sb + 0x20);
|
||||
|
||||
// For FAT32:
|
||||
if (sectors_per_fat == 0)
|
||||
sectors_per_fat = le32(sb + 0x24);
|
||||
|
||||
// XXX: For FAT32, we might want to look at offsets 28, 2a
|
||||
// XXX: We _do_ need to look at 2c
|
||||
|
||||
u32 fat_sectors = sectors_per_fat * fats;
|
||||
u32 root_sectors = (0x20*root_entries + bytes_per_sector - 1)
|
||||
/ bytes_per_sector;
|
||||
|
||||
u32 fat_start_sector = reserved_sectors;
|
||||
u32 root_start_sector = fat_start_sector + fat_sectors;
|
||||
u32 data_start_sector = root_start_sector + root_sectors;
|
||||
|
||||
clusters = (total_sectors - data_start_sector) / sectors_per_cluster;
|
||||
|
||||
if (clusters < 0x0ff5)
|
||||
fat_type = 12;
|
||||
else if (clusters < 0xfff5)
|
||||
fat_type = 16;
|
||||
else
|
||||
fat_type = 32;
|
||||
|
||||
fat_offset = (u64)bytes_per_sector*fat_start_sector;
|
||||
root_offset = (u64)bytes_per_sector*root_start_sector;
|
||||
data_offset = (u64)bytes_per_sector*data_start_sector;
|
||||
|
||||
if (fat_type == 32)
|
||||
root_offset = le32(sb + 0x2c);
|
||||
|
||||
#ifdef FAT_TEST
|
||||
fprintf(stderr, "bytes_per_sector = %08x\n", bytes_per_sector);
|
||||
fprintf(stderr, "sectors_per_cluster = %08x\n", sectors_per_cluster);
|
||||
fprintf(stderr, "bytes_per_cluster = %08x\n", bytes_per_cluster);
|
||||
fprintf(stderr, "root_entries = %08x\n", root_entries);
|
||||
fprintf(stderr, "clusters = %08x\n", clusters);
|
||||
fprintf(stderr, "fat_type = %08x\n", fat_type);
|
||||
fprintf(stderr, "fat_offset = %012llx\n", fat_offset);
|
||||
fprintf(stderr, "root_offset = %012llx\n", root_offset);
|
||||
fprintf(stderr, "data_offset = %012llx\n", data_offset);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int is_fat_fs(const u8 *sb)
|
||||
{
|
||||
// Bytes per sector should be 512, 1024, 2048, or 4096
|
||||
u32 bps = le16(sb + 0x0b);
|
||||
if (bps < 0x0200 || bps > 0x1000 || bps & (bps - 1))
|
||||
return 0;
|
||||
|
||||
// Media type should be f0 or f8,...,ff
|
||||
if (sb[0x15] < 0xf8 && sb[0x15] != 0xf0)
|
||||
return 0;
|
||||
|
||||
// If those checks didn't fail, it's FAT. We hope.
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
int fat_init(void)
|
||||
{
|
||||
u8 buf[0x200];
|
||||
int err;
|
||||
|
||||
partition_start_offset = 0;
|
||||
err = read(buf, 0, 0x200);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (le16(buf + 0x01fe) != 0xaa55) // Not a DOS disk.
|
||||
return -1;
|
||||
|
||||
if (is_fat_fs(buf))
|
||||
return fat_init_fs(buf);
|
||||
|
||||
// Maybe there's a partition table? Let's try the first partition.
|
||||
if (buf[0x01c2] == 0)
|
||||
return -1;
|
||||
|
||||
partition_start_offset = 0x200ULL*le32(buf + 0x01c6);
|
||||
|
||||
err = read(buf, 0, 0x200);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (is_fat_fs(buf))
|
||||
return fat_init_fs(buf);
|
||||
|
||||
return -1;
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 5.5 KiB |
Binary file not shown.
|
|
@ -0,0 +1,60 @@
|
|||
#!/usr/bin/perl
|
||||
|
||||
|
||||
# Read PPM file.
|
||||
|
||||
$sig = <>; chomp $sig;
|
||||
$sizes = <>; chomp $sizes;
|
||||
$cols = <>; chomp $cols;
|
||||
|
||||
{
|
||||
local $/;
|
||||
$data = <>;
|
||||
}
|
||||
|
||||
|
||||
# Sanity check.
|
||||
|
||||
$sig ne "P6" and die;
|
||||
$sizes ne "90 256" and die;
|
||||
$cols ne "255" and die;
|
||||
(length $data) != 3 * 90 * 256 and die;
|
||||
|
||||
|
||||
# Output header.
|
||||
|
||||
print "// GENERATED FILE DO NOT EDIT\n";
|
||||
print "\n";
|
||||
print "#include \"loader.h\"\n";
|
||||
print "\n";
|
||||
print "const u8 console_font_10x16x4[96*80] = {\n";
|
||||
|
||||
# Output data.
|
||||
|
||||
for my $ch (2..7) {
|
||||
for my $cl (0..15) {
|
||||
printf "\n\t// %x%x\n", $ch, $cl;
|
||||
for my $py (0..15) {
|
||||
print "\t";
|
||||
for my $px (0..9) {
|
||||
my $hor = $px + 10*($ch - 2);
|
||||
my $ver = $py + 16*$cl;
|
||||
my $wot = $hor + 90*$ver;
|
||||
my $bytes = substr($data, 3*$wot, 3);
|
||||
my $nyb = int ((ord $bytes) / 16);
|
||||
if (($px & 1) == 0) {
|
||||
printf "0x%x", $nyb;
|
||||
} else {
|
||||
printf "%x,", $nyb;
|
||||
}
|
||||
}
|
||||
print "\n";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
# Output footer.
|
||||
|
||||
print "\n";
|
||||
print "};\n";
|
||||
|
|
@ -0,0 +1,271 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
// Low-level IPC access.
|
||||
|
||||
static u32 ipc_read(u32 reg)
|
||||
{
|
||||
return read32(0x0d000000 + 4*reg);
|
||||
}
|
||||
|
||||
static void ipc_write(u32 reg, u32 value)
|
||||
{
|
||||
write32(0x0d000000 + 4*reg, value);
|
||||
}
|
||||
|
||||
static void ipc_bell(u32 w)
|
||||
{
|
||||
ipc_write(1, (ipc_read(1) & 0x30) | w);
|
||||
}
|
||||
|
||||
static void ipc_wait_ack(void)
|
||||
{
|
||||
while ((ipc_read(1) & 0x22) != 0x22)
|
||||
;
|
||||
}
|
||||
|
||||
static void ipc_wait_reply(void)
|
||||
{
|
||||
while ((ipc_read(1) & 0x14) != 0x14)
|
||||
;
|
||||
}
|
||||
|
||||
static void ipc_irq_ack(void)
|
||||
{
|
||||
ipc_write(12, 0x40000000);
|
||||
}
|
||||
|
||||
|
||||
// Mid-level IPC access.
|
||||
|
||||
static struct {
|
||||
u32 cmd;
|
||||
int result;
|
||||
int fd;
|
||||
u32 arg[5];
|
||||
|
||||
u32 user[8];
|
||||
} ipc __attribute__((aligned(64)));
|
||||
|
||||
static void ipc_send_request(void)
|
||||
{
|
||||
sync_after_write(&ipc, 0x40);
|
||||
|
||||
ipc_write(0, virt_to_phys(&ipc));
|
||||
ipc_bell(1);
|
||||
|
||||
ipc_wait_ack();
|
||||
|
||||
ipc_bell(2);
|
||||
ipc_irq_ack();
|
||||
}
|
||||
|
||||
static void ipc_recv_reply(void)
|
||||
{
|
||||
for (;;) {
|
||||
u32 reply;
|
||||
|
||||
ipc_wait_reply();
|
||||
|
||||
reply = ipc_read(2);
|
||||
ipc_bell(4);
|
||||
|
||||
ipc_irq_ack();
|
||||
ipc_bell(8);
|
||||
|
||||
if (reply == virt_to_phys(&ipc))
|
||||
break;
|
||||
}
|
||||
|
||||
sync_before_read(&ipc, sizeof ipc);
|
||||
}
|
||||
|
||||
|
||||
// High-level IPC access.
|
||||
|
||||
int ios_open(const char *filename, u32 mode)
|
||||
{
|
||||
sync_after_write(filename, strlen(filename) + 1);
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
ipc.cmd = 1;
|
||||
ipc.fd = 0;
|
||||
ipc.arg[0] = virt_to_phys(filename);
|
||||
ipc.arg[1] = mode;
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
|
||||
int ios_close(int fd)
|
||||
{
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
ipc.cmd = 2;
|
||||
ipc.fd = fd;
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
|
||||
#if 0
|
||||
int ios_read(int fd, void *data, u32 len)
|
||||
{
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
ipc.cmd = 3;
|
||||
ipc.fd = fd;
|
||||
ipc.arg[0] = virt_to_phys(data);
|
||||
ipc.arg[1] = len;
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
if (data)
|
||||
sync_before_read(data, len);
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
|
||||
int ios_seek(int fd, int where, int whence)
|
||||
{
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
ipc.cmd = 5;
|
||||
ipc.fd = fd;
|
||||
ipc.arg[0] = where;
|
||||
ipc.arg[1] = whence;
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
#endif
|
||||
|
||||
int ios_ioctl(int fd, u32 n, const void *in, u32 inlen, void *out, u32 outlen)
|
||||
{
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
if (in)
|
||||
sync_after_write(in, inlen);
|
||||
if (out)
|
||||
sync_after_write(out, outlen);
|
||||
|
||||
ipc.cmd = 6;
|
||||
ipc.fd = fd;
|
||||
ipc.arg[0] = n;
|
||||
ipc.arg[1] = virt_to_phys(in);
|
||||
ipc.arg[2] = inlen;
|
||||
ipc.arg[3] = virt_to_phys(out);
|
||||
ipc.arg[4] = outlen;
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
if (out)
|
||||
sync_before_read(out, outlen);
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
|
||||
int ios_ioctlv(int fd, u32 n, u32 in_count, u32 out_count, struct ioctlv *vec)
|
||||
{
|
||||
u32 i;
|
||||
|
||||
memset(&ipc, 0, sizeof ipc);
|
||||
|
||||
for (i = 0; i < in_count + out_count; i++)
|
||||
if (vec[i].data) {
|
||||
sync_after_write(vec[i].data, vec[i].len);
|
||||
vec[i].data = (void *)virt_to_phys(vec[i].data);
|
||||
}
|
||||
|
||||
sync_after_write(vec, (in_count + out_count) * sizeof *vec);
|
||||
|
||||
ipc.cmd = 7;
|
||||
ipc.fd = fd;
|
||||
ipc.arg[0] = n;
|
||||
ipc.arg[1] = in_count;
|
||||
ipc.arg[2] = out_count;
|
||||
ipc.arg[3] = virt_to_phys(vec);
|
||||
|
||||
ipc_send_request();
|
||||
ipc_recv_reply();
|
||||
|
||||
for (i = in_count; i < in_count + out_count; i++)
|
||||
if (vec[i].data) {
|
||||
vec[i].data = phys_to_virt((u32)vec[i].data);
|
||||
sync_before_read(vec[i].data, vec[i].len);
|
||||
}
|
||||
|
||||
return ipc.result;
|
||||
}
|
||||
|
||||
|
||||
// Cleanup any old state.
|
||||
|
||||
static void ipc_cleanup_reply(void)
|
||||
{
|
||||
if ((ipc_read(1) & 0x14) != 0x14)
|
||||
return;
|
||||
|
||||
ipc_read(2);
|
||||
ipc_bell(4);
|
||||
|
||||
ipc_irq_ack();
|
||||
ipc_bell(8);
|
||||
}
|
||||
|
||||
static void ipc_cleanup_request(void)
|
||||
{
|
||||
if ((ipc_read(1) & 0x22) == 0x22)
|
||||
ipc_bell(2);
|
||||
}
|
||||
|
||||
static void releasse_old_stm_callback(void)
|
||||
{
|
||||
*((u32 *)0x80000018) = 0x00000014;
|
||||
sync_after_write((void*)0x80000014, 8);
|
||||
|
||||
int fd = ios_open("/dev/stm/immediate",0);
|
||||
if (fd < 0) {
|
||||
printf("STM Immediate open failed!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
int err = ios_ioctl(fd, 0x3002, 0, 0, 0, 0);
|
||||
printf("Eventhook release failed with code %d\n", err);
|
||||
|
||||
ios_close(fd);
|
||||
}
|
||||
|
||||
void reset_ios(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
//printf("Flushing IPC transactions");
|
||||
for (i = 0; i < 10; i++) {
|
||||
ipc_cleanup_request();
|
||||
ipc_cleanup_reply();
|
||||
ipc_irq_ack();
|
||||
udelay(1000);
|
||||
//printf(".");
|
||||
}
|
||||
//printf(" Done.\n");
|
||||
|
||||
//printf("Closing file descriptors...");
|
||||
for (i = 0; i < 32; i++)
|
||||
ios_close(i);
|
||||
//printf(" Done.\n");
|
||||
|
||||
releasse_old_stm_callback();
|
||||
}
|
||||
|
|
@ -0,0 +1,171 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#ifndef _LOADER_H
|
||||
#define _LOADER_H
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
|
||||
// String functions.
|
||||
|
||||
size_t strlen(const char *);
|
||||
size_t strnlen(const char *, size_t);
|
||||
void *memset(void *, int, size_t);
|
||||
void *memcpy(void *, const void *, size_t);
|
||||
int memcmp(const void *, const void *, size_t);
|
||||
|
||||
|
||||
// Basic types.
|
||||
|
||||
typedef unsigned char u8;
|
||||
typedef unsigned short int u16;
|
||||
typedef unsigned int u32;
|
||||
typedef unsigned long long int u64;
|
||||
|
||||
static inline u16 le16(const u8 *p)
|
||||
{
|
||||
return p[0] | (p[1] << 8);
|
||||
}
|
||||
|
||||
static inline u32 le32(const u8 *p)
|
||||
{
|
||||
return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
|
||||
}
|
||||
|
||||
|
||||
// Basic I/O.
|
||||
|
||||
static inline u32 read32(u32 addr)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
asm volatile("lwz %0,0(%1) ; sync" : "=r"(x) : "b"(0xc0000000 | addr));
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
static inline void write32(u32 addr, u32 x)
|
||||
{
|
||||
asm("stw %0,0(%1) ; eieio" : : "r"(x), "b"(0xc0000000 | addr));
|
||||
}
|
||||
|
||||
static inline u16 read16(u32 addr)
|
||||
{
|
||||
u16 x;
|
||||
|
||||
asm volatile("lhz %0,0(%1) ; sync" : "=r"(x) : "b"(0xc0000000 | addr));
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
static inline void write16(u32 addr, u16 x)
|
||||
{
|
||||
asm("sth %0,0(%1) ; eieio" : : "r"(x), "b"(0xc0000000 | addr));
|
||||
}
|
||||
|
||||
|
||||
// Address mapping.
|
||||
|
||||
static inline u32 virt_to_phys(const void *p)
|
||||
{
|
||||
return (u32)p & 0x7fffffff;
|
||||
}
|
||||
|
||||
static inline void *phys_to_virt(u32 x)
|
||||
{
|
||||
return (void *)(x | 0x80000000);
|
||||
}
|
||||
|
||||
|
||||
// Cache synchronisation.
|
||||
|
||||
void sync_before_read(void *p, u32 len);
|
||||
void sync_after_write(const void *p, u32 len);
|
||||
void sync_before_exec(const void *p, u32 len);
|
||||
|
||||
|
||||
// Time.
|
||||
|
||||
void udelay(u32 us);
|
||||
|
||||
|
||||
// Special purpose registers.
|
||||
|
||||
#define mtspr(n, x) do { asm("mtspr %1,%0" : : "r"(x), "i"(n)); } while (0)
|
||||
#define mfspr(n) ({ \
|
||||
u32 x; asm volatile("mfspr %0,%1" : "=r"(x) : "i"(n)); x; \
|
||||
})
|
||||
|
||||
|
||||
// Exceptions.
|
||||
|
||||
void exception_init(void);
|
||||
|
||||
|
||||
// USB Gecko.
|
||||
|
||||
void usbgecko_init(void);
|
||||
int usbgecko_checkgecko(void);
|
||||
void usbgecko_console_putc(u8 c);
|
||||
|
||||
u8 usbgecko_flash_read8(u32 offset);
|
||||
u32 usbgecko_flash_read32(u32 offset);
|
||||
|
||||
|
||||
// Version string.
|
||||
|
||||
extern const char version[];
|
||||
|
||||
|
||||
// Video.
|
||||
|
||||
void video_init(void);
|
||||
void fb_putc(char);
|
||||
|
||||
|
||||
// Console.
|
||||
|
||||
void console_init(void);
|
||||
int printf(const char *fmt, ...);
|
||||
|
||||
|
||||
// SD card.
|
||||
|
||||
int sd_init(void);
|
||||
int sd_read_sector(u8 *data, u32 offset);
|
||||
int sd_close(void);
|
||||
|
||||
|
||||
// FAT.
|
||||
|
||||
int fat_init(void);
|
||||
int fat_open(const char *name);
|
||||
int fat_read(void *data, u32 len);
|
||||
|
||||
|
||||
// ELF.
|
||||
|
||||
int valid_elf_image(void *addr);
|
||||
void *load_elf_image(void *addr);
|
||||
|
||||
|
||||
// IOS.
|
||||
|
||||
struct ioctlv {
|
||||
void *data;
|
||||
u32 len;
|
||||
};
|
||||
|
||||
int ios_open(const char *filename, u32 mode);
|
||||
int ios_close(int fd);
|
||||
int ios_read(int fd, void *data, u32 len);
|
||||
int ios_write(int fd, const void *data, u32 len);
|
||||
int ios_seek(int fd, int where, int whence);
|
||||
int ios_ioctl(int fd, u32 n, const void *in, u32 inlen, void *out, u32 outlen);
|
||||
int ios_ioctlv(int fd, u32 n, u32 in_count, u32 out_count, struct ioctlv *vec);
|
||||
|
||||
void reset_ios(void);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
/* Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt */
|
||||
|
||||
OUTPUT_FORMAT("elf32-powerpc")
|
||||
OUTPUT_ARCH(powerpc:common)
|
||||
|
||||
ENTRY(_start)
|
||||
|
||||
SECTIONS {
|
||||
. = 0x90000020;
|
||||
|
||||
.start : { crt0.o(*) }
|
||||
.text : { *(.text) }
|
||||
.rodata : { *(.rodata .rodata.*)}
|
||||
.data : { *(.data) }
|
||||
|
||||
__bss_start = .;
|
||||
.bss : { *(.bss) }
|
||||
__bss_end = .;
|
||||
|
||||
. = ALIGN(0x40);
|
||||
.stack : {
|
||||
. += 0x8000;
|
||||
_stack_top = .;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,155 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
u8 *code_buffer = (u8 *)0x90100000;
|
||||
u8 *trampoline_buffer = (u8 *)0x80001800;
|
||||
|
||||
static void dsp_reset(void)
|
||||
{
|
||||
write16(0x0c00500a, read16(0x0c00500a) & ~0x01f8);
|
||||
write16(0x0c00500a, read16(0x0c00500a) | 0x0010);
|
||||
write16(0x0c005036, 0);
|
||||
}
|
||||
|
||||
static u32 reboot_trampoline[] = {
|
||||
0x3c209000, // lis 1,0x9000
|
||||
0x60210020, // ori 1,1,0x0020
|
||||
0x7c2903a6, // mtctr 1
|
||||
0x4e800420 // bctr
|
||||
};
|
||||
|
||||
int try_sd_load(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = sd_init();
|
||||
if (err) {
|
||||
printf("SD card not found (%d)\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
err = fat_init();
|
||||
if (err == 0)
|
||||
printf("SD card detected\n");
|
||||
else {
|
||||
printf("SD card not detected (%d)\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
// if (usbgecko_checkgecko())
|
||||
// printf("USBGecko serial interface detected\n");
|
||||
// else
|
||||
// printf("USBGecko serial interface not detected\n");
|
||||
|
||||
printf("Opening boot.elf:\n");
|
||||
err = fat_open("boot.elf");
|
||||
|
||||
if (err) {
|
||||
printf("boot.elf not found (%d)\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
extern u32 fat_file_size;
|
||||
|
||||
printf("reading %d bytes...\n", fat_file_size);
|
||||
err = fat_read(code_buffer, fat_file_size);
|
||||
if (err) {
|
||||
printf("Error %d reading file\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
printf("Done.\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
int try_usbgecko_load(void)
|
||||
{
|
||||
if (!usbgecko_checkgecko()) {
|
||||
printf("USBGecko not found\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
#define FLASH_OFFSET 0x30000
|
||||
int i, size = usbgecko_flash_read32(FLASH_OFFSET);
|
||||
if (size < 0) {
|
||||
printf("Invalid code size in usbgecko flash (%d)\n", size);
|
||||
return -1;
|
||||
}
|
||||
printf("Loading %d bytes from USBGecko flash (offset=%x)\n",
|
||||
size, FLASH_OFFSET+4);
|
||||
|
||||
for (i=0; i < size; i++)
|
||||
code_buffer[i] = usbgecko_flash_read8(FLASH_OFFSET + 4 + i);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
dsp_reset();
|
||||
|
||||
exception_init();
|
||||
|
||||
// Install trampoline at 80001800; some payloads like to jump
|
||||
// there to restart. Sometimes this can even work.
|
||||
memcpy(trampoline_buffer, reboot_trampoline, sizeof(reboot_trampoline));
|
||||
|
||||
// Clear interrupt mask.
|
||||
write32(0x0c003004, 0);
|
||||
|
||||
// Unlock EXI.
|
||||
write32(0x0d00643c, 0);
|
||||
|
||||
video_init();
|
||||
usbgecko_init();
|
||||
|
||||
printf("Twilight Hack %s\n", version);
|
||||
printf("\n");
|
||||
printf("Copyright 2008,2009 Segher Boessenkool\n");
|
||||
printf("Copyright 2008 Haxx Enterprises\n");
|
||||
printf("Copyright 2008 Hector Martin (\"marcan\")\n");
|
||||
printf("Copyright 2003,2004 Felix Domke\n");
|
||||
printf("\n");
|
||||
printf("This code is licensed to you under the terms of the\n");
|
||||
printf("GNU GPL, version 2; see the file COPYING\n");
|
||||
printf("\n");
|
||||
printf("Font and graphics by Freddy Leitner\n");
|
||||
printf("\n");
|
||||
printf("\n");
|
||||
|
||||
printf("Cleaning up environment... ");
|
||||
|
||||
reset_ios();
|
||||
|
||||
printf("OK.\n");
|
||||
|
||||
|
||||
int err;
|
||||
|
||||
restart:
|
||||
err = try_sd_load();
|
||||
|
||||
if (err) {
|
||||
err = try_usbgecko_load();
|
||||
|
||||
if (err) {
|
||||
printf("No code found to load, hanging.\n");
|
||||
for (;;)
|
||||
;
|
||||
}
|
||||
}
|
||||
|
||||
if (valid_elf_image(code_buffer)) {
|
||||
printf("Valid ELF image detected.\n");
|
||||
void (*entry)() = load_elf_image(code_buffer);
|
||||
entry();
|
||||
printf("Program returned to loader, reloading.\n");
|
||||
} else
|
||||
printf("No valid ELF image detected, retrying.\n");
|
||||
|
||||
goto restart;
|
||||
}
|
||||
|
|
@ -0,0 +1,283 @@
|
|||
// Copyright 2008 Haxx Enterprises <bushing@gmail.com>
|
||||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
static int fd;
|
||||
static u32 rca; // 16 bottom bits are stuff bits
|
||||
|
||||
|
||||
static int sd_hc_write8(u8 reg, u8 data)
|
||||
{
|
||||
u32 param[6];
|
||||
int err;
|
||||
|
||||
memset(param, 0, sizeof param);
|
||||
param[0] = reg;
|
||||
param[3] = 1; // reg size
|
||||
param[4] = data;
|
||||
|
||||
err = ios_ioctl(fd, 1, param, sizeof param, 0, 0);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_hc_read8(u8 reg, u8 *x)
|
||||
{
|
||||
u32 param[6];
|
||||
u32 data;
|
||||
int err;
|
||||
|
||||
memset(param, 0, sizeof param);
|
||||
param[0] = reg;
|
||||
param[3] = 1; // reg size
|
||||
param[4] = 0;
|
||||
|
||||
err = ios_ioctl(fd, 2, param, sizeof param, &data, sizeof data);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
*x = data;
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_reset_card(void)
|
||||
{
|
||||
u32 reply;
|
||||
int err;
|
||||
|
||||
err = ios_ioctl(fd, 4, 0, 0, &reply, sizeof reply);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
rca = reply & 0xffff0000;
|
||||
|
||||
// printf("sd_reset_card(): got reply = %08x\n", reply);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sd_set_clock(void)
|
||||
{
|
||||
u32 clock;
|
||||
int err;
|
||||
|
||||
clock = 1; // half of the sdclk divisor: a power of two or zero,
|
||||
// should look at capabilities reg to compute this
|
||||
|
||||
err = ios_ioctl(fd, 6, &clock, sizeof clock, 0, 0);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_command(u32 cmd, u32 cmd_type, u32 resp_type, u32 arg,
|
||||
u32 block_count, u32 block_size, void *addr,
|
||||
u32 *outreply, u32 reply_size)
|
||||
{
|
||||
u32 param[9];
|
||||
u32 reply[4];
|
||||
int err;
|
||||
|
||||
param[0] = cmd;
|
||||
param[1] = cmd_type;
|
||||
param[2] = resp_type;
|
||||
param[3] = arg;
|
||||
param[4] = block_count;
|
||||
param[5] = block_size;
|
||||
param[6] = (u32)addr;
|
||||
param[7] = 0; // ???
|
||||
param[8] = 0; // ???
|
||||
|
||||
err = ios_ioctl(fd, 7, param, sizeof param, reply, sizeof reply);
|
||||
|
||||
if (reply_size) // ???
|
||||
memcpy(outreply, reply, reply_size);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
#define TYPE_BC 1
|
||||
#define TYPE_BCR 2
|
||||
#define TYPE_AC 3
|
||||
#define TYPE_ADTC 4
|
||||
|
||||
#define RESPONSE_NONE 0
|
||||
#define RESPONSE_R1 1
|
||||
#define RESPONSE_R1B 2
|
||||
#define RESPONSE_R2 3
|
||||
#define RESPONSE_R3 4
|
||||
#define RESPONSE_R4 5
|
||||
#define RESPONSE_R5 6
|
||||
#define RESPONSE_R6 7
|
||||
|
||||
|
||||
static int sd_app_command(u32 cmd, u32 cmd_type, u32 resp_type, u32 arg,
|
||||
u32 block_count, u32 block_size, void *addr,
|
||||
u32 *outreply, u32 reply_size)
|
||||
{
|
||||
int err;
|
||||
|
||||
err = sd_command(55, TYPE_AC, RESPONSE_R1, rca, 0, 0, 0, 0, 0);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
err = sd_command(cmd, cmd_type, resp_type, arg,
|
||||
block_count, block_size, addr,
|
||||
outreply, reply_size);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_data_command(u32 cmd, u32 cmd_type, u32 resp_type, u32 arg,
|
||||
u32 block_count, u32 block_size, void *data,
|
||||
u32 unk1, u32 unk2, u32 *outreply, u32 reply_size)
|
||||
{
|
||||
u32 param[9];
|
||||
u32 reply[4];
|
||||
struct ioctlv vec[3];
|
||||
int err;
|
||||
|
||||
param[0] = cmd;
|
||||
param[1] = cmd_type;
|
||||
param[2] = resp_type;
|
||||
param[3] = arg;
|
||||
param[4] = block_count;
|
||||
param[5] = block_size;
|
||||
param[6] = (u32)data;
|
||||
param[7] = unk1; // ???
|
||||
param[8] = unk2; // ???
|
||||
|
||||
vec[0].data = param;
|
||||
vec[0].len = sizeof param;
|
||||
vec[1].data = data;
|
||||
vec[1].len = block_count * block_size;
|
||||
vec[2].data = reply;
|
||||
vec[2].len = sizeof reply;
|
||||
|
||||
err = ios_ioctlv(fd, 7, 2, 1, vec);
|
||||
|
||||
if (reply_size) // ???
|
||||
memcpy(outreply, reply, reply_size);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_select(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
//printf("Selecting card:\n");
|
||||
err = sd_command(7, TYPE_AC, RESPONSE_R1B, rca, 0, 0, 0, 0, 0);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_set_blocklength(u32 len)
|
||||
{
|
||||
int err;
|
||||
|
||||
//printf("sd_set_blocklength(%u)\n", len);
|
||||
err = sd_command(16, TYPE_AC, RESPONSE_R1, len, 0, 0, 0, 0, 0);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int sd_set_bus_width(int width)
|
||||
{
|
||||
u32 arg;
|
||||
u8 reg;
|
||||
int err;
|
||||
|
||||
// First notify the card.
|
||||
arg = (width == 4) ? 2 : 0;
|
||||
//printf("sd_set_bus_width()\n");
|
||||
err = sd_app_command(6, TYPE_AC, RESPONSE_R1, arg, 0, 0, 0, 0, 0);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
// Now change the Host Control Register.
|
||||
err = sd_hc_read8(0x28, ®);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
reg = (reg & ~2) | arg;
|
||||
|
||||
err = sd_hc_write8(0x28, reg);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
int sd_read_sector(u8 *data, u32 offset)
|
||||
{
|
||||
u32 reply[4];
|
||||
int err;
|
||||
|
||||
if (offset >= 0x800000)
|
||||
return -1;
|
||||
|
||||
err = sd_data_command(18, TYPE_AC, RESPONSE_R1, 0x200 * offset,
|
||||
1, 0x200, data, 1, 0, reply, sizeof reply);
|
||||
|
||||
sync_before_read(data, 0x200);
|
||||
|
||||
//printf("READ block %d\r",offset);
|
||||
if (err)
|
||||
printf("SD READ %d: err=%08x, reply=%08x %08x %08x %08x\n",
|
||||
offset, err, reply[0], reply[1], reply[2], reply[3]);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
int sd_close(void)
|
||||
{
|
||||
return ios_close(fd);
|
||||
}
|
||||
|
||||
int sd_init(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
fd = ios_open("/dev/sdio/slot0", 0);
|
||||
if (fd < 0)
|
||||
return fd;
|
||||
|
||||
err = sd_reset_card();
|
||||
if (err) {
|
||||
printf("SD Card not present? (%d)\n", err);
|
||||
goto out;
|
||||
}
|
||||
|
||||
// now in standby state
|
||||
|
||||
err = sd_select();
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
// now in transfer state
|
||||
|
||||
// Some broken cards require this:
|
||||
err = sd_set_blocklength(0x200);
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
err = sd_set_bus_width(4); // XXX: Should check in SCR first.
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
err = sd_set_clock(); // XXX: Should check.
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
return 0;
|
||||
|
||||
out:
|
||||
sd_close();
|
||||
|
||||
return err;
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
size_t strlen(const char *s)
|
||||
{
|
||||
size_t len;
|
||||
|
||||
for (len = 0; s[len]; len++)
|
||||
;
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
size_t strnlen(const char *s, size_t count)
|
||||
{
|
||||
size_t len;
|
||||
|
||||
for (len = 0; s[len] && len < count; len++)
|
||||
;
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
void *memset(void *b, int c, size_t len)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < len; i++)
|
||||
((unsigned char *)b)[i] = c;
|
||||
|
||||
return b;
|
||||
}
|
||||
|
||||
void *memcpy(void *dst, const void *src, size_t len)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < len; i++)
|
||||
((unsigned char *)dst)[i] = ((unsigned char *)src)[i];
|
||||
|
||||
return dst;
|
||||
}
|
||||
|
||||
int memcmp(const void *b1, const void *b2, size_t len)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for (i = 0; i < len; i++) {
|
||||
int diff = ((unsigned char *)b1)[i] - ((unsigned char *)b2)[i];
|
||||
if (diff)
|
||||
return diff;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
void sync_before_read(void *p, u32 len)
|
||||
{
|
||||
u32 a, b;
|
||||
|
||||
a = (u32)p & ~0x1f;
|
||||
b = ((u32)p + len + 0x1f) & ~0x1f;
|
||||
|
||||
for ( ; a < b; a += 32)
|
||||
asm("dcbi 0,%0" : : "b"(a) : "memory");
|
||||
|
||||
asm("sync ; isync");
|
||||
}
|
||||
|
||||
void sync_after_write(const void *p, u32 len)
|
||||
{
|
||||
u32 a, b;
|
||||
|
||||
a = (u32)p & ~0x1f;
|
||||
b = ((u32)p + len + 0x1f) & ~0x1f;
|
||||
|
||||
for ( ; a < b; a += 32)
|
||||
asm("dcbst 0,%0" : : "b"(a));
|
||||
|
||||
asm("sync ; isync");
|
||||
}
|
||||
|
||||
void sync_before_exec(const void *p, u32 len)
|
||||
{
|
||||
u32 a, b;
|
||||
|
||||
a = (u32)p & ~0x1f;
|
||||
b = ((u32)p + len + 0x1f) & ~0x1f;
|
||||
|
||||
for ( ; a < b; a += 32)
|
||||
asm("dcbst 0,%0 ; sync ; icbi 0,%0" : : "b"(a));
|
||||
|
||||
asm("sync ; isync");
|
||||
}
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
// Timebase frequency is bus frequency / 4. Ignore roundoff, this
|
||||
// doesn't have to be very accurate.
|
||||
#define TICKS_PER_USEC (243/4)
|
||||
|
||||
static u32 mftb(void)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
asm volatile("mftb %0" : "=r"(x));
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
static void __delay(u32 ticks)
|
||||
{
|
||||
u32 start = mftb();
|
||||
|
||||
while (mftb() - start < ticks)
|
||||
;
|
||||
}
|
||||
|
||||
void udelay(u32 us)
|
||||
{
|
||||
__delay(TICKS_PER_USEC * us);
|
||||
}
|
||||
|
|
@ -0,0 +1,131 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
// Based on code:
|
||||
// Copyright (c) 2008 - Nuke - <wiinuke@gmail.com>
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
|
||||
static void exi_write(u32 addr, u32 x)
|
||||
{
|
||||
write32(0x0d006800 + addr, x);
|
||||
}
|
||||
|
||||
static u32 exi_read(u32 addr)
|
||||
{
|
||||
return read32(0x0d006800 + addr);
|
||||
}
|
||||
|
||||
#define EXI_CH1_STATUS 0x14
|
||||
#define EXI_CH1_CONTROL 0x20
|
||||
#define EXI_CH1_DATA 0x24
|
||||
|
||||
|
||||
static void usbgecko_deselect_device(void)
|
||||
{
|
||||
exi_write(EXI_CH1_STATUS, 0);
|
||||
}
|
||||
|
||||
static void usbgecko_select_device(void)
|
||||
{
|
||||
// device 0, 16MHz
|
||||
exi_write(EXI_CH1_STATUS, 0xc0);
|
||||
}
|
||||
|
||||
static void usbgecko_wait_for_transfer_complete(void)
|
||||
{
|
||||
while (exi_read(EXI_CH1_CONTROL) & 1)
|
||||
;
|
||||
}
|
||||
|
||||
|
||||
u8 usbgecko_flash_read8(u32 offset)
|
||||
{
|
||||
u8 x;
|
||||
|
||||
usbgecko_deselect_device();
|
||||
|
||||
usbgecko_select_device();
|
||||
exi_write(EXI_CH1_DATA, 0xf0000000 | (offset << 9));
|
||||
exi_write(EXI_CH1_CONTROL, 0x35); // 4 bytes immediate write
|
||||
usbgecko_wait_for_transfer_complete();
|
||||
|
||||
usbgecko_select_device();
|
||||
exi_write(EXI_CH1_CONTROL, 0x39); // 4 bytes immediate read/write
|
||||
usbgecko_wait_for_transfer_complete();
|
||||
|
||||
x = exi_read(EXI_CH1_DATA) >> 23;
|
||||
|
||||
usbgecko_deselect_device();
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
u32 usbgecko_flash_read32(u32 offset)
|
||||
{
|
||||
u32 x, i;
|
||||
|
||||
x = 0;
|
||||
for (i = 0; i < 4; i++)
|
||||
x = (x << 8) | usbgecko_flash_read8(offset++);
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int usbgecko_console_enabled = 0;
|
||||
|
||||
static u32 usbgecko_command(u32 command)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
usbgecko_select_device();
|
||||
exi_write(EXI_CH1_DATA, command);
|
||||
exi_write(EXI_CH1_CONTROL, 0x19); // 2 bytes immediate read/write
|
||||
usbgecko_wait_for_transfer_complete();
|
||||
|
||||
x = exi_read(EXI_CH1_DATA);
|
||||
|
||||
usbgecko_deselect_device();
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
int usbgecko_checkgecko(void)
|
||||
{
|
||||
return usbgecko_command(0x90000000) == 0x04700000;
|
||||
}
|
||||
|
||||
void usbgecko_console_putc(u8 c)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
if (!usbgecko_console_enabled)
|
||||
return;
|
||||
|
||||
if (c == '\n')
|
||||
usbgecko_console_putc('\r');
|
||||
|
||||
x = usbgecko_command(0xb0000000 | (c << 20));
|
||||
}
|
||||
|
||||
static void usbgecko_flush(void)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
do {
|
||||
x = usbgecko_command(0xa0000000);
|
||||
} while (x & 0x08000000);
|
||||
}
|
||||
|
||||
void usbgecko_init(void)
|
||||
{
|
||||
if (!usbgecko_checkgecko())
|
||||
return;
|
||||
|
||||
usbgecko_console_enabled = 1;
|
||||
usbgecko_flush();
|
||||
}
|
||||
|
|
@ -0,0 +1,168 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// Copyright 2003-2004 Felix Domke <tmbinc@elitedvb.net>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#include "loader.h"
|
||||
|
||||
extern u8 console_font_10x16x4[];
|
||||
|
||||
#define FONT_XSIZE 10
|
||||
#define FONT_YSIZE 16
|
||||
#define FONT_XGAP 0
|
||||
#define FONT_YGAP 2
|
||||
|
||||
static struct {
|
||||
u32 xres, yres, stride;
|
||||
|
||||
u32 cursor_x, cursor_y;
|
||||
|
||||
u32 border_left, border_right, border_top, border_bottom;
|
||||
} fb;
|
||||
|
||||
static void fb_write(u32 offset, u32 x)
|
||||
{
|
||||
// write32(0x00f00000 + offset, x);
|
||||
u32 *p = (u32 *)(0x80f00000 + offset);
|
||||
*p = x;
|
||||
sync_after_write(p, 4);
|
||||
}
|
||||
|
||||
static u32 fb_read(u32 offset)
|
||||
{
|
||||
// return read32(0x00f00000 + offset);
|
||||
u32 *p = (u32 *)(0x80f00000 + offset);
|
||||
|
||||
return *p;
|
||||
}
|
||||
|
||||
static void fb_clear_lines(u32 top, u32 lines)
|
||||
{
|
||||
u32 x, y;
|
||||
u32 offset;
|
||||
|
||||
offset = fb.stride * top;
|
||||
|
||||
for (y = 0; y < lines; y++) {
|
||||
for (x = 0; x < fb.xres/2; x++)
|
||||
fb_write(offset + 4*x, 0x00800080);
|
||||
|
||||
offset += fb.stride;
|
||||
}
|
||||
}
|
||||
|
||||
static void fb_scroll_line(void)
|
||||
{
|
||||
u32 x, y;
|
||||
u32 offset, delta;
|
||||
u32 lines = FONT_YSIZE + FONT_YGAP;
|
||||
|
||||
offset = fb.stride * fb.border_top;
|
||||
delta = fb.stride * lines;
|
||||
|
||||
for (y = fb.border_top; y < fb.yres - lines; y++) {
|
||||
for (x = 0; x < fb.xres/2; x++)
|
||||
fb_write(offset + 4*x, fb_read(offset + 4*x + delta));
|
||||
|
||||
offset += fb.stride;
|
||||
}
|
||||
|
||||
fb_clear_lines(fb.yres - lines, lines);
|
||||
|
||||
fb.cursor_y -= lines;
|
||||
}
|
||||
|
||||
static void fb_drawc(u32 x, u32 y, u8 c)
|
||||
{
|
||||
if (c < 0x20 || c > 0x7f)
|
||||
c = 0x7f;
|
||||
c -= 0x20;
|
||||
|
||||
u32 offset = fb.stride*y + 2*x;
|
||||
u8 *font = &console_font_10x16x4[c * FONT_XSIZE * FONT_YSIZE / 2];
|
||||
|
||||
u32 ax, ay;
|
||||
for (ay = 0; ay < FONT_YSIZE; ay++) {
|
||||
for (ax = 0; ax < FONT_XSIZE / 2; ax++) {
|
||||
u8 bits = *font++;
|
||||
u32 nybh = bits & 0xf0;
|
||||
u32 nybl = bits & 0x0f;
|
||||
u32 q = 0x00800080;
|
||||
q |= (nybh << 24) | (nybh << 20);
|
||||
q |= (nybl << 12) | (nybl << 8);
|
||||
fb_write(offset + 4*ax, q);
|
||||
}
|
||||
offset += fb.stride;
|
||||
}
|
||||
}
|
||||
|
||||
void fb_putc(char c)
|
||||
{
|
||||
switch (c) {
|
||||
case '\n':
|
||||
fb.cursor_y += FONT_YSIZE + FONT_YGAP;
|
||||
|
||||
case '\r':
|
||||
fb.cursor_x = fb.border_left;
|
||||
break;
|
||||
|
||||
default:
|
||||
fb_drawc(fb.cursor_x, fb.cursor_y, c);
|
||||
fb.cursor_x += FONT_XSIZE + FONT_XGAP;
|
||||
if ((fb.cursor_x + FONT_XSIZE) > fb.border_right) {
|
||||
fb.cursor_y += FONT_YSIZE + FONT_YGAP;
|
||||
fb.cursor_x = fb.border_left;
|
||||
}
|
||||
}
|
||||
|
||||
if (fb.cursor_y + FONT_YSIZE >= fb.border_bottom)
|
||||
fb_scroll_line();
|
||||
}
|
||||
|
||||
|
||||
static void fb_init(u32 xres, u32 yres, u32 stride)
|
||||
{
|
||||
fb.xres = xres;
|
||||
fb.yres = yres;
|
||||
fb.stride = stride;
|
||||
|
||||
fb.border_left = 30;
|
||||
fb.border_top = 30;
|
||||
fb.border_right = fb.xres - 30;
|
||||
fb.border_bottom = fb.yres - 30;
|
||||
|
||||
fb.cursor_x = fb.border_left;
|
||||
fb.cursor_y = fb.border_top;
|
||||
|
||||
fb_clear_lines(0, fb.yres);
|
||||
}
|
||||
|
||||
void video_init(void)
|
||||
{
|
||||
// read VTR register to determine linecount and mode
|
||||
u32 vtr = read16(0x0c002000);
|
||||
u32 lines = vtr >> 4;
|
||||
|
||||
if ((vtr & 0x0f) > 10) { // progressive
|
||||
// set framebuffer position
|
||||
write32(0x0c00201c, 0x00f00000);
|
||||
write32(0x0c002024, 0x00f00000);
|
||||
} else { //interlaced
|
||||
lines *= 2;
|
||||
|
||||
u32 vto = read32(0x0c00200c);
|
||||
u32 vte = read32(0x0c002010);
|
||||
|
||||
// set framebuffer position
|
||||
// try to figure out the interlacing order
|
||||
if ((vto & 0x03ff) < (vte & 0x03ff)) {
|
||||
write32(0x0c00201c, 0x00f00000);
|
||||
write32(0x0c002024, 0x00f00000 + 2*640);
|
||||
} else {
|
||||
write32(0x0c00201c, 0x00f00000 + 2*640);
|
||||
write32(0x0c002024, 0x00f00000);
|
||||
}
|
||||
}
|
||||
|
||||
fb_init(640, lines, 2*640);
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
#!/usr/bin/perl
|
||||
sub printline {
|
||||
my $x = shift;
|
||||
chomp $x;
|
||||
$x .= "\0" x 32;
|
||||
$x = substr $x, 0, 32;
|
||||
$x =~ s/(.)/\0$1/g;
|
||||
|
||||
print $x;
|
||||
}
|
||||
|
||||
$name = "Twilight Hack by Team Twiizers";
|
||||
$version = `cat .version`;
|
||||
|
||||
printline $name;
|
||||
printline $version;
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
#!/bin/bash
|
||||
out=$1; shift
|
||||
dd if=/dev/zero bs=1 count=$((0x4000)) of=$out 2>/dev/null
|
||||
start=0
|
||||
for save in $@; do
|
||||
dd if=$save of=$out bs=1 seek=$start conv=notrunc 2>/dev/null
|
||||
start=$((start+0xa94))
|
||||
done
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 3.7 KiB |
Binary file not shown.
Binary file not shown.
|
After Width: | Height: | Size: 3.6 KiB |
Binary file not shown.
Binary file not shown.
|
After Width: | Height: | Size: 3.6 KiB |
Binary file not shown.
|
|
@ -0,0 +1,35 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#define XSTR(x) #x
|
||||
#define ISTR(x) XSTR(x)
|
||||
|
||||
.section .start,"ax"
|
||||
|
||||
// Uninteresting stuff.
|
||||
.incbin "head.b"
|
||||
|
||||
// "Link". This is displayed on the load menu, so make it nice.
|
||||
0: .ascii ISTR(NAME)
|
||||
.fill 17 - (. - 0b)
|
||||
|
||||
// "Epona". Hungry horse eats the stack.
|
||||
.fill 0xe8,1,'3'
|
||||
|
||||
// The return address on the stack.
|
||||
.long start
|
||||
|
||||
// Align things properly -- there's code after this.
|
||||
.fill 7,1,'S'
|
||||
.balign 4,0
|
||||
|
||||
start:
|
||||
// Set up a stack frame.
|
||||
lis 1,0x8080 ; li 0,0 ; stwu 0,-64(1)
|
||||
|
||||
// Pass the address we are called from, to determine region.
|
||||
mflr 3
|
||||
|
||||
// Go for it!
|
||||
b main
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
#!/usr/bin/perl
|
||||
print "00010000", map { sprintf "%02x", ord uc } split //, $ARGV[0];
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzde-icon.ppm
|
||||
rzde.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzde-icon.ppm
|
||||
zero16k zeldaTp.dat
|
||||
rzde.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzde-icon.ppm
|
||||
rzde.data zeldaTp.dat
|
||||
FAILURE FAILURE
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdj-icon.ppm
|
||||
rzdj.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdj-icon.ppm
|
||||
zero16k zeldaTp.dat
|
||||
rzdj.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdj-icon.ppm
|
||||
rzdj.data zeldaTp.dat
|
||||
FAILURE FAILURE
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdp-icon.ppm
|
||||
rzdp.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdp-icon.ppm
|
||||
zero16k zeldaTp.dat
|
||||
rzdp.data zeldaTp.dat
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
title.bin
|
||||
generic-banner.ppm
|
||||
rzdp-icon.ppm
|
||||
rzdp.data zeldaTp.dat
|
||||
FAILURE FAILURE
|
||||
|
|
@ -0,0 +1,222 @@
|
|||
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
// This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
// see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||||
|
||||
#undef DEBUG_GECKO
|
||||
#undef DEBUG_BLINK
|
||||
|
||||
typedef unsigned int u32;
|
||||
typedef unsigned char u8;
|
||||
|
||||
int nand_open_E0(const char *path, void *buf, u32 mode);
|
||||
int nand_open_E2(const char *path, void *buf, u32 mode);
|
||||
int nand_open_J0(const char *path, void *buf, u32 mode);
|
||||
int nand_open_P0(const char *path, void *buf, u32 mode);
|
||||
|
||||
int nand_read_E0(void *buf, void *dest, u32 len);
|
||||
int nand_read_E2(void *buf, void *dest, u32 len);
|
||||
int nand_read_J0(void *buf, void *dest, u32 len);
|
||||
int nand_read_P0(void *buf, void *dest, u32 len);
|
||||
|
||||
void audio_stop_E0(void);
|
||||
void audio_stop_E2(void);
|
||||
void audio_stop_J0(void);
|
||||
void audio_stop_P0(void);
|
||||
|
||||
void graphics_stop_E0(void);
|
||||
void graphics_stop_E2(void);
|
||||
void graphics_stop_J0(void);
|
||||
void graphics_stop_P0(void);
|
||||
|
||||
static u8 nand_buf[0x100] __attribute__ ((aligned(0x40)));
|
||||
|
||||
#ifdef DEBUG_GECKO
|
||||
void gecko_print(void *, const char *);
|
||||
|
||||
#define PRINT(x) gecko_print(0, x)
|
||||
#define HEX(x) hex(x)
|
||||
|
||||
static void hex(u32 x)
|
||||
{
|
||||
u32 i;
|
||||
u32 digit;
|
||||
char s[10];
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
digit = x >> 28;
|
||||
x <<= 4;
|
||||
s[i] = digit + '0' + (digit < 10 ? 0 : 'a' - 10 - '0');
|
||||
}
|
||||
s[8] = '\n';
|
||||
s[9] = 0;
|
||||
PRINT(s);
|
||||
}
|
||||
#else
|
||||
#define PRINT(x) do { } while (0)
|
||||
#define HEX(x) do { } while (0)
|
||||
#endif
|
||||
|
||||
static void sync_cache(void *p, u32 n)
|
||||
{
|
||||
u32 start, end;
|
||||
|
||||
start = (u32)p & ~31;
|
||||
end = ((u32)p + n + 31) & ~31;
|
||||
n = (end - start) >> 5;
|
||||
|
||||
while (n--) {
|
||||
asm("dcbst 0,%0 ; icbi 0,%0" : : "b"(p));
|
||||
p += 32;
|
||||
}
|
||||
asm("sync ; isync");
|
||||
}
|
||||
|
||||
static void sync_before_read(void *p, u32 n)
|
||||
{
|
||||
u32 start, end;
|
||||
|
||||
start = (u32)p & ~31;
|
||||
end = ((u32)p + n + 31) & ~31;
|
||||
n = (end - start) >> 5;
|
||||
|
||||
while (n--) {
|
||||
asm("dcbf 0,%0" : : "b"(p));
|
||||
p += 32;
|
||||
}
|
||||
asm("sync");
|
||||
}
|
||||
|
||||
static void jump(void *p, u32 arg)
|
||||
{
|
||||
PRINT("taking the plunge...\n");
|
||||
|
||||
asm("mr 3,%1 ; mtctr %0 ; bctrl" : : "r"(p), "r"(arg) : "r3");
|
||||
|
||||
PRINT("whoops, payload returned to us\n");
|
||||
}
|
||||
|
||||
#ifdef DEBUG_BLINK
|
||||
static u32 read32(u32 addr)
|
||||
{
|
||||
u32 x;
|
||||
|
||||
asm volatile("lwz %0,0(%1) ; sync" : "=r"(x) : "b"(0xc0000000 | addr));
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
static void write32(u32 addr, u32 x)
|
||||
{
|
||||
asm("stw %0,0(%1) ; eieio" : : "r"(x), "b"(0xc0000000 | addr));
|
||||
}
|
||||
|
||||
static void blink(u32 colour)
|
||||
{
|
||||
u32 *fb = (u32 *)0xC0F00000;
|
||||
u32 i;
|
||||
|
||||
// blink tray led
|
||||
write32(0x0d8000c0, read32(0x0d8000c0) ^ 0x20);
|
||||
|
||||
for (i = 0; i < 640*576/2; i++)
|
||||
fb[i] = colour;
|
||||
}
|
||||
#else
|
||||
#define blink(x) do { } while(0)
|
||||
#endif
|
||||
|
||||
void __attribute__ ((noreturn)) main(u32 baddr)
|
||||
{
|
||||
int ret, i, len;
|
||||
char *area;
|
||||
char *gameid = (char *)0x80000000;
|
||||
int (*nand_open)(const char *path, void *buf, u32 mode);
|
||||
int (*nand_read)(void *buf, void *dest, u32 len);
|
||||
void (*audio_stop)(void);
|
||||
void (*graphics_stop)(void);
|
||||
|
||||
PRINT("Hello, Brave New World!\n");
|
||||
|
||||
baddr -= 0x2c0;
|
||||
|
||||
switch (gameid[3]) {
|
||||
case 'E':
|
||||
if ((baddr>>16) == 0x8045) {
|
||||
nand_open = nand_open_E2;
|
||||
nand_read = nand_read_E2;
|
||||
audio_stop = audio_stop_E2;
|
||||
graphics_stop = graphics_stop_E2;
|
||||
} else {
|
||||
nand_open = nand_open_E0;
|
||||
nand_read = nand_read_E0;
|
||||
audio_stop = audio_stop_E0;
|
||||
graphics_stop = graphics_stop_E0;
|
||||
}
|
||||
break;
|
||||
case 'P':
|
||||
nand_open = nand_open_P0;
|
||||
nand_read = nand_read_P0;
|
||||
audio_stop = audio_stop_P0;
|
||||
graphics_stop = graphics_stop_P0;
|
||||
break;
|
||||
case 'J':
|
||||
nand_open = nand_open_J0;
|
||||
nand_read = nand_read_J0;
|
||||
audio_stop = audio_stop_J0;
|
||||
graphics_stop = graphics_stop_J0;
|
||||
break;
|
||||
default:
|
||||
PRINT("unsupported game region\n");
|
||||
for (;;)
|
||||
;
|
||||
}
|
||||
|
||||
audio_stop();
|
||||
graphics_stop();
|
||||
|
||||
blink(0x266a26c0); // maroon
|
||||
|
||||
ret = nand_open("zeldaTp.dat", nand_buf, 1);
|
||||
|
||||
blink(0x7140718a); // olive
|
||||
|
||||
PRINT("nand open --> ");
|
||||
HEX(ret);
|
||||
|
||||
area = (void *)0x90000020;
|
||||
|
||||
// Skip past save game, to loader.bin
|
||||
ret = nand_read(nand_buf, area, 0x4000);
|
||||
|
||||
len = 0;
|
||||
for (i = 0; i < 0x40; i++) {
|
||||
PRINT("reading bootloader page: ");
|
||||
HEX(i);
|
||||
|
||||
blink(0x40804080 + i*0x02000200); // grey
|
||||
|
||||
sync_before_read(area + 0x1000*i, 0x1000);
|
||||
ret = nand_read(nand_buf, area + 0x1000*i, 0x1000);
|
||||
len += ret;
|
||||
|
||||
blink(0x552b5515 + i*0x02000200); // lime
|
||||
|
||||
PRINT("--> ");
|
||||
HEX(ret);
|
||||
PRINT("\n");
|
||||
}
|
||||
|
||||
for (i = 0; i < 0x100; i++)
|
||||
HEX(((u32 *)area)[i]);
|
||||
|
||||
blink(0xc399c36a); // sky blue
|
||||
|
||||
sync_cache(area, len);
|
||||
jump(area, 0x123);
|
||||
|
||||
blink(0x4c544cff); // red
|
||||
|
||||
PRINT("(shouldn't happen)\n");
|
||||
for (;;)
|
||||
;
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
/* Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
|
||||
This code is licensed to you under the terms of the GNU GPL, version 2;
|
||||
see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt */
|
||||
|
||||
OUTPUT_FORMAT("elf32-powerpc")
|
||||
OUTPUT_ARCH(powerpc:common)
|
||||
|
||||
SECTIONS {
|
||||
gecko_print = 0x802facf0;
|
||||
|
||||
nand_open_E0 = 0x80371f50;
|
||||
nand_read_E0 = 0x80371710;
|
||||
audio_stop_E0 = 0x8034607c;
|
||||
graphics_stop_E0 = 0x8035c930;
|
||||
|
||||
nand_open_E2 = 0x8035c988;
|
||||
nand_read_E2 = 0x8035c148;
|
||||
audio_stop_E2 = 0x80330a4c;
|
||||
graphics_stop_E2 = 0x80347368;
|
||||
|
||||
nand_open_P0 = 0x8035cdb8;
|
||||
nand_read_P0 = 0x8035c578;
|
||||
audio_stop_P0 = 0x80330e7c;
|
||||
graphics_stop_P0 = 0x80347798;
|
||||
|
||||
nand_open_J0 = 0x8035e440;
|
||||
nand_read_J0 = 0x8035dc00;
|
||||
audio_stop_J0 = 0x8033256c;
|
||||
graphics_stop_J0 = 0x80348e20;
|
||||
|
||||
.twilight baddr :
|
||||
{
|
||||
rzd*.o(.start)
|
||||
*(.text)
|
||||
*(.rodata .rodata.*)
|
||||
*(.data)
|
||||
*(.bss)
|
||||
. = 0x0a94;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue