1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/COPYING	Wed Mar 07 06:11:51 2012 +0200
     1.3 @@ -0,0 +1,674 @@
     1.4 +                    GNU GENERAL PUBLIC LICENSE
     1.5 +                       Version 3, 29 June 2007
     1.6 +
     1.7 + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     1.8 + Everyone is permitted to copy and distribute verbatim copies
     1.9 + of this license document, but changing it is not allowed.
    1.10 +
    1.11 +                            Preamble
    1.12 +
    1.13 +  The GNU General Public License is a free, copyleft license for
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    1.16 +  The licenses for most software and other practical works are designed
    1.17 +to take away your freedom to share and change the works.  By contrast,
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    1.20 +software for all its users.  We, the Free Software Foundation, use the
    1.21 +GNU General Public License for most of our software; it applies also to
    1.22 +any other work released this way by its authors.  You can apply it to
    1.23 +your programs, too.
    1.24 +
    1.25 +  When we speak of free software, we are referring to freedom, not
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    1.37 +  For example, if you distribute copies of such a program, whether
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    1.43 +  Developers that use the GNU GPL protect your rights with two steps:
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    1.53 +  Some devices are designed to deny users access to install or run
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    1.73 +
    1.74 +                       TERMS AND CONDITIONS
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    1.76 +  0. Definitions.
    1.77 +
    1.78 +  "This License" refers to version 3 of the GNU General Public License.
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    1.80 +  "Copyright" also means copyright-like laws that apply to other kinds of
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    1.83 +  "The Program" refers to any copyrightable work licensed under this
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   1.185 +measure under any applicable law fulfilling obligations under article
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   1.225 +    c) You must license the entire work, as a whole, under this
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   1.233 +    d) If the work has interactive user interfaces, each must display
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   1.238 +  A compilation of a covered work with other separate and independent
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   1.245 +in an aggregate does not cause this License to apply to the other
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   1.247 +
   1.248 +  6. Conveying Non-Source Forms.
   1.249 +
   1.250 +  You may convey a covered work in object code form under the terms
   1.251 +of sections 4 and 5, provided that you also convey the
   1.252 +machine-readable Corresponding Source under the terms of this License,
   1.253 +in one of these ways:
   1.254 +
   1.255 +    a) Convey the object code in, or embodied in, a physical product
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   1.260 +    b) Convey the object code in, or embodied in, a physical product
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   1.272 +    c) Convey individual copies of the object code with a copy of the
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   1.278 +    d) Convey the object code by offering access from a designated
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   1.291 +    e) Convey the object code using peer-to-peer transmission, provided
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   1.296 +  A separable portion of the object code, whose source code is excluded
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   1.300 +  A "User Product" is either (1) a "consumer product", which means any
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   1.313 +  "Installation Information" for a User Product means any methods,
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   1.321 +  If you convey an object code work under this section in, or with, or
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   1.332 +  The requirement to provide Installation Information does not include a
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   1.340 +  Corresponding Source conveyed, and Installation Information provided,
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   1.345 +
   1.346 +  7. Additional Terms.
   1.347 +
   1.348 +  "Additional permissions" are terms that supplement the terms of this
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   1.350 +Additional permissions that are applicable to the entire Program shall
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   1.357 +  When you convey a copy of a covered work, you may at your option
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   1.364 +  Notwithstanding any other provision of this License, for material you
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   1.368 +    a) Disclaiming warranty or limiting liability differently from the
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   1.406 +  Additional terms, permissive or non-permissive, may be stated in the
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   1.409 +
   1.410 +  8. Termination.
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   1.412 +  You may not propagate or modify a covered work except as expressly
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   1.425 +  Moreover, your license from a particular copyright holder is
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   1.432 +  Termination of your rights under this section does not terminate the
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   1.438 +  9. Acceptance Not Required for Having Copies.
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   1.456 +  An "entity transaction" is a transaction transferring control of an
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   1.470 +(including a cross-claim or counterclaim in a lawsuit) alleging that
   1.471 +any patent claim is infringed by making, using, selling, offering for
   1.472 +sale, or importing the Program or any portion of it.
   1.473 +
   1.474 +  11. Patents.
   1.475 +
   1.476 +  A "contributor" is a copyright holder who authorizes use under this
   1.477 +License of the Program or a work on which the Program is based.  The
   1.478 +work thus licensed is called the contributor's "contributor version".
   1.479 +
   1.480 +  A contributor's "essential patent claims" are all patent claims
   1.481 +owned or controlled by the contributor, whether already acquired or
   1.482 +hereafter acquired, that would be infringed by some manner, permitted
   1.483 +by this License, of making, using, or selling its contributor version,
   1.484 +but do not include claims that would be infringed only as a
   1.485 +consequence of further modification of the contributor version.  For
   1.486 +purposes of this definition, "control" includes the right to grant
   1.487 +patent sublicenses in a manner consistent with the requirements of
   1.488 +this License.
   1.489 +
   1.490 +  Each contributor grants you a non-exclusive, worldwide, royalty-free
   1.491 +patent license under the contributor's essential patent claims, to
   1.492 +make, use, sell, offer for sale, import and otherwise run, modify and
   1.493 +propagate the contents of its contributor version.
   1.494 +
   1.495 +  In the following three paragraphs, a "patent license" is any express
   1.496 +agreement or commitment, however denominated, not to enforce a patent
   1.497 +(such as an express permission to practice a patent or covenant not to
   1.498 +sue for patent infringement).  To "grant" such a patent license to a
   1.499 +party means to make such an agreement or commitment not to enforce a
   1.500 +patent against the party.
   1.501 +
   1.502 +  If you convey a covered work, knowingly relying on a patent license,
   1.503 +and the Corresponding Source of the work is not available for anyone
   1.504 +to copy, free of charge and under the terms of this License, through a
   1.505 +publicly available network server or other readily accessible means,
   1.506 +then you must either (1) cause the Corresponding Source to be so
   1.507 +available, or (2) arrange to deprive yourself of the benefit of the
   1.508 +patent license for this particular work, or (3) arrange, in a manner
   1.509 +consistent with the requirements of this License, to extend the patent
   1.510 +license to downstream recipients.  "Knowingly relying" means you have
   1.511 +actual knowledge that, but for the patent license, your conveying the
   1.512 +covered work in a country, or your recipient's use of the covered work
   1.513 +in a country, would infringe one or more identifiable patents in that
   1.514 +country that you have reason to believe are valid.
   1.515 +
   1.516 +  If, pursuant to or in connection with a single transaction or
   1.517 +arrangement, you convey, or propagate by procuring conveyance of, a
   1.518 +covered work, and grant a patent license to some of the parties
   1.519 +receiving the covered work authorizing them to use, propagate, modify
   1.520 +or convey a specific copy of the covered work, then the patent license
   1.521 +you grant is automatically extended to all recipients of the covered
   1.522 +work and works based on it.
   1.523 +
   1.524 +  A patent license is "discriminatory" if it does not include within
   1.525 +the scope of its coverage, prohibits the exercise of, or is
   1.526 +conditioned on the non-exercise of one or more of the rights that are
   1.527 +specifically granted under this License.  You may not convey a covered
   1.528 +work if you are a party to an arrangement with a third party that is
   1.529 +in the business of distributing software, under which you make payment
   1.530 +to the third party based on the extent of your activity of conveying
   1.531 +the work, and under which the third party grants, to any of the
   1.532 +parties who would receive the covered work from you, a discriminatory
   1.533 +patent license (a) in connection with copies of the covered work
   1.534 +conveyed by you (or copies made from those copies), or (b) primarily
   1.535 +for and in connection with specific products or compilations that
   1.536 +contain the covered work, unless you entered into that arrangement,
   1.537 +or that patent license was granted, prior to 28 March 2007.
   1.538 +
   1.539 +  Nothing in this License shall be construed as excluding or limiting
   1.540 +any implied license or other defenses to infringement that may
   1.541 +otherwise be available to you under applicable patent law.
   1.542 +
   1.543 +  12. No Surrender of Others' Freedom.
   1.544 +
   1.545 +  If conditions are imposed on you (whether by court order, agreement or
   1.546 +otherwise) that contradict the conditions of this License, they do not
   1.547 +excuse you from the conditions of this License.  If you cannot convey a
   1.548 +covered work so as to satisfy simultaneously your obligations under this
   1.549 +License and any other pertinent obligations, then as a consequence you may
   1.550 +not convey it at all.  For example, if you agree to terms that obligate you
   1.551 +to collect a royalty for further conveying from those to whom you convey
   1.552 +the Program, the only way you could satisfy both those terms and this
   1.553 +License would be to refrain entirely from conveying the Program.
   1.554 +
   1.555 +  13. Use with the GNU Affero General Public License.
   1.556 +
   1.557 +  Notwithstanding any other provision of this License, you have
   1.558 +permission to link or combine any covered work with a work licensed
   1.559 +under version 3 of the GNU Affero General Public License into a single
   1.560 +combined work, and to convey the resulting work.  The terms of this
   1.561 +License will continue to apply to the part which is the covered work,
   1.562 +but the special requirements of the GNU Affero General Public License,
   1.563 +section 13, concerning interaction through a network will apply to the
   1.564 +combination as such.
   1.565 +
   1.566 +  14. Revised Versions of this License.
   1.567 +
   1.568 +  The Free Software Foundation may publish revised and/or new versions of
   1.569 +the GNU General Public License from time to time.  Such new versions will
   1.570 +be similar in spirit to the present version, but may differ in detail to
   1.571 +address new problems or concerns.
   1.572 +
   1.573 +  Each version is given a distinguishing version number.  If the
   1.574 +Program specifies that a certain numbered version of the GNU General
   1.575 +Public License "or any later version" applies to it, you have the
   1.576 +option of following the terms and conditions either of that numbered
   1.577 +version or of any later version published by the Free Software
   1.578 +Foundation.  If the Program does not specify a version number of the
   1.579 +GNU General Public License, you may choose any version ever published
   1.580 +by the Free Software Foundation.
   1.581 +
   1.582 +  If the Program specifies that a proxy can decide which future
   1.583 +versions of the GNU General Public License can be used, that proxy's
   1.584 +public statement of acceptance of a version permanently authorizes you
   1.585 +to choose that version for the Program.
   1.586 +
   1.587 +  Later license versions may give you additional or different
   1.588 +permissions.  However, no additional obligations are imposed on any
   1.589 +author or copyright holder as a result of your choosing to follow a
   1.590 +later version.
   1.591 +
   1.592 +  15. Disclaimer of Warranty.
   1.593 +
   1.594 +  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   1.595 +APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   1.596 +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   1.597 +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   1.598 +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   1.599 +PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   1.600 +IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   1.601 +ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   1.602 +
   1.603 +  16. Limitation of Liability.
   1.604 +
   1.605 +  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   1.606 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   1.607 +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
   1.608 +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
   1.609 +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
   1.610 +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
   1.611 +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   1.612 +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   1.613 +SUCH DAMAGES.
   1.614 +
   1.615 +  17. Interpretation of Sections 15 and 16.
   1.616 +
   1.617 +  If the disclaimer of warranty and limitation of liability provided
   1.618 +above cannot be given local legal effect according to their terms,
   1.619 +reviewing courts shall apply local law that most closely approximates
   1.620 +an absolute waiver of all civil liability in connection with the
   1.621 +Program, unless a warranty or assumption of liability accompanies a
   1.622 +copy of the Program in return for a fee.
   1.623 +
   1.624 +                     END OF TERMS AND CONDITIONS
   1.625 +
   1.626 +            How to Apply These Terms to Your New Programs
   1.627 +
   1.628 +  If you develop a new program, and you want it to be of the greatest
   1.629 +possible use to the public, the best way to achieve this is to make it
   1.630 +free software which everyone can redistribute and change under these terms.
   1.631 +
   1.632 +  To do so, attach the following notices to the program.  It is safest
   1.633 +to attach them to the start of each source file to most effectively
   1.634 +state the exclusion of warranty; and each file should have at least
   1.635 +the "copyright" line and a pointer to where the full notice is found.
   1.636 +
   1.637 +    <one line to give the program's name and a brief idea of what it does.>
   1.638 +    Copyright (C) <year>  <name of author>
   1.639 +
   1.640 +    This program is free software: you can redistribute it and/or modify
   1.641 +    it under the terms of the GNU General Public License as published by
   1.642 +    the Free Software Foundation, either version 3 of the License, or
   1.643 +    (at your option) any later version.
   1.644 +
   1.645 +    This program is distributed in the hope that it will be useful,
   1.646 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
   1.647 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   1.648 +    GNU General Public License for more details.
   1.649 +
   1.650 +    You should have received a copy of the GNU General Public License
   1.651 +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   1.652 +
   1.653 +Also add information on how to contact you by electronic and paper mail.
   1.654 +
   1.655 +  If the program does terminal interaction, make it output a short
   1.656 +notice like this when it starts in an interactive mode:
   1.657 +
   1.658 +    <program>  Copyright (C) <year>  <name of author>
   1.659 +    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   1.660 +    This is free software, and you are welcome to redistribute it
   1.661 +    under certain conditions; type `show c' for details.
   1.662 +
   1.663 +The hypothetical commands `show w' and `show c' should show the appropriate
   1.664 +parts of the General Public License.  Of course, your program's commands
   1.665 +might be different; for a GUI interface, you would use an "about box".
   1.666 +
   1.667 +  You should also get your employer (if you work as a programmer) or school,
   1.668 +if any, to sign a "copyright disclaimer" for the program, if necessary.
   1.669 +For more information on this, and how to apply and follow the GNU GPL, see
   1.670 +<http://www.gnu.org/licenses/>.
   1.671 +
   1.672 +  The GNU General Public License does not permit incorporating your program
   1.673 +into proprietary programs.  If your program is a subroutine library, you
   1.674 +may consider it more useful to permit linking proprietary applications with
   1.675 +the library.  If this is what you want to do, use the GNU Lesser General
   1.676 +Public License instead of this License.  But first, please read
   1.677 +<http://www.gnu.org/philosophy/why-not-lgpl.html>.

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/src/comm.c	Wed Mar 07 06:11:51 2012 +0200
     2.3 @@ -0,0 +1,187 @@
     2.4 +/*
     2.5 +gbasys - a gameboy advance hardware abstraction library
     2.6 +Copyright (C) 2005-2012  John Tsiombikas <nuclear@member.fsf.org>
     2.7 +
     2.8 +This program is free software: you can redistribute it and/or modify
     2.9 +it under the terms of the GNU General Public License as published by
    2.10 +the Free Software Foundation, either version 3 of the License, or
    2.11 +(at your option) any later version.
    2.12 +
    2.13 +This program is distributed in the hope that it will be useful,
    2.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    2.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    2.16 +GNU General Public License for more details.
    2.17 +
    2.18 +You should have received a copy of the GNU General Public License
    2.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    2.20 +*/
    2.21 +
    2.22 +#include "comm.h"
    2.23 +#include "error.h"
    2.24 +#include "signal.h"
    2.25 +#include "intr.h"
    2.26 +
    2.27 +#define REG_SIODATA32	*((volatile unsigned short*)0x4000120)
    2.28 +#define REG_SIOCNT		*((volatile unsigned short*)0x4000128)
    2.29 +#define REG_SIODATA8	*((volatile unsigned short*)0x400012a)
    2.30 +#define REG_RCNT		*((volatile unsigned short*)0x4000134)
    2.31 +
    2.32 +/* REG_SIOCNT bits */
    2.33 +#define SIOCNT_CLK_INTERN		(1 << 0)
    2.34 +#define SIOCNT_CLK_2MHZ			(1 << 1)
    2.35 +#define SIOCNT_RECV_ENABLE		(1 << 2)
    2.36 +#define SIOCNT_SEND_ENABLE		(1 << 3)
    2.37 +#define SIOCNT_START			(1 << 7)
    2.38 +#define SIOCNT_XFER_LEN			(1 << 12)
    2.39 +#define SIOCNT_INT_ENABLE		(1 << 14)
    2.40 +
    2.41 +/* only in 16bit multi player mode */
    2.42 +#define SIOCNT_BAUD_38400		1
    2.43 +#define SIOCNT_BAUD_57600		2
    2.44 +#define SIOCNT_BAUD_115200		3
    2.45 +#define SIOCNT_SI_STATUS		(1 << 2)
    2.46 +#define SIOCNT_SD_STATUS		(1 << 3)
    2.47 +#define SIOCNT_SLAVE1			(1 << 4)
    2.48 +#define SIOCNT_SLAVE2			(2 << 4)
    2.49 +#define SIOCNT_SLAVE3			(3 << 4)
    2.50 +#define SIOCNT_ERROR			(1 << 6)
    2.51 +
    2.52 +/* REG_RCNT bits */
    2.53 +#define RCNT_GPIO_DATA_MASK		0x000f
    2.54 +#define RCNT_GPIO_DIR_MASK		0x00f0
    2.55 +#define RCNT_GPIO_INT_ENABLE	(1 << 8)
    2.56 +#define RCNT_MODE_GPIO			0x8000
    2.57 +#define RCNT_MODE_JOYBUS		0xc000
    2.58 +
    2.59 +
    2.60 +static void setup_sio(int bits, int ms);
    2.61 +static void setup_gpio(void);
    2.62 +static void comm_intr(void);
    2.63 +
    2.64 +static int sio_bits, sio_master;
    2.65 +static void *sio_buf;
    2.66 +
    2.67 +
    2.68 +void comm_setup(int mode)
    2.69 +{
    2.70 +	int master = 0;
    2.71 +
    2.72 +	mask(INTR_COMM);
    2.73 +	interrupt(INTR_COMM, comm_intr);
    2.74 +	unmask(INTR_COMM);
    2.75 +
    2.76 +	switch(mode) {
    2.77 +	case COMM_SIO8_MASTER:
    2.78 +		master = 1;
    2.79 +	case COMM_SIO8_SLAVE:
    2.80 +		setup_sio(8, master);
    2.81 +		break;
    2.82 +
    2.83 +	case COMM_SIO32_MASTER:
    2.84 +		master = 1;
    2.85 +	case COMM_SIO32_SLAVE:
    2.86 +		setup_sio(32, master);
    2.87 +		break;
    2.88 +
    2.89 +	case COMM_GPIO:
    2.90 +		setup_gpio();
    2.91 +		break;
    2.92 +
    2.93 +	default:
    2.94 +		panic("unimplemented comm mode\n");
    2.95 +	}
    2.96 +}
    2.97 +
    2.98 +static void setup_sio(int bits, int ms)
    2.99 +{
   2.100 +	REG_RCNT = 0;	/* serial mode */
   2.101 +
   2.102 +	sio_bits = bits;
   2.103 +	sio_master = ms;
   2.104 +}
   2.105 +
   2.106 +void sio_transfer(void *in, const void *out)
   2.107 +{
   2.108 +	/* load outgoing data */
   2.109 +	if(sio_bits <= 8) {
   2.110 +		REG_SIODATA8 = *(unsigned char*)out;
   2.111 +	} else {
   2.112 +		REG_SIODATA32 = *(unsigned long*)out;
   2.113 +	}
   2.114 +	sio_buf = in;
   2.115 +
   2.116 +	/* IE=1, external clock, send enable */
   2.117 +	REG_SIOCNT = SIOCNT_INT_ENABLE | SIOCNT_SEND_ENABLE;
   2.118 +
   2.119 +	/* start transfer */
   2.120 +	REG_SIOCNT |= SIOCNT_START;
   2.121 +
   2.122 +	/* wait until the transfer is complete */
   2.123 +	while(REG_SIOCNT & SIOCNT_START);
   2.124 +}
   2.125 +
   2.126 +void sio_transfer_async(void *in, const void *out)
   2.127 +{
   2.128 +	/* load outgoing data */
   2.129 +	if(sio_bits <= 8) {
   2.130 +		REG_SIODATA8 = *(unsigned char*)out;
   2.131 +	} else {
   2.132 +		REG_SIODATA32 = *(unsigned long*)out;
   2.133 +	}
   2.134 +	sio_buf = in;
   2.135 +
   2.136 +	/* IE=1, external clock, send enable */
   2.137 +	REG_SIOCNT = SIOCNT_INT_ENABLE | SIOCNT_SEND_ENABLE;
   2.138 +
   2.139 +	/* start transfer */
   2.140 +	REG_SIOCNT |= SIOCNT_START;
   2.141 +}
   2.142 +
   2.143 +
   2.144 +static void setup_gpio(void)
   2.145 +{
   2.146 +	REG_RCNT = RCNT_MODE_GPIO | RCNT_GPIO_INT_ENABLE;
   2.147 +}
   2.148 +
   2.149 +void gpio_dir(int dir_so, int dir_si, int dir_sd, int dir_sc)
   2.150 +{
   2.151 +	unsigned char mask;
   2.152 +
   2.153 +	mask = ((dir_so & 1) << 7) | ((dir_si & 1) << 6) | ((dir_sd & 1) << 5) |
   2.154 +		((dir_sc & 1) << 4);
   2.155 +	gpio_dir_mask(mask);
   2.156 +}
   2.157 +
   2.158 +void gpio_dir_mask(unsigned char dir)
   2.159 +{
   2.160 +	REG_RCNT = (REG_RCNT & 0xff0f) | ((dir & 0xf) << 4);
   2.161 +}
   2.162 +
   2.163 +void gpio_set(unsigned char val)
   2.164 +{
   2.165 +	REG_RCNT = (REG_RCNT & 0xfff0) | (val & 0xf);
   2.166 +}
   2.167 +
   2.168 +unsigned char gpio_get(void)
   2.169 +{
   2.170 +	return REG_RCNT & 0xf;
   2.171 +}
   2.172 +
   2.173 +static void comm_intr(void)
   2.174 +{
   2.175 +	if(sio_buf) {
   2.176 +		if(REG_SIOCNT & SIOCNT_START) {
   2.177 +			panic("asio: interrupt with start bit == 1");
   2.178 +		}
   2.179 +		if(sio_bits <= 8) {
   2.180 +			*(unsigned char*)sio_buf = REG_SIODATA8;
   2.181 +		} else {
   2.182 +			*(unsigned long*)sio_buf = REG_SIODATA32;
   2.183 +		}
   2.184 +		sio_buf = 0;
   2.185 +	}
   2.186 +
   2.187 +	if(signal_func(SIGIO)) {
   2.188 +		raise(SIGIO);
   2.189 +	}
   2.190 +}

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/src/comm.h	Wed Mar 07 06:11:51 2012 +0200
     3.3 @@ -0,0 +1,48 @@
     3.4 +/*
     3.5 +gbasys - a gameboy advance hardware abstraction library
     3.6 +Copyright (C) 2005-2012  John Tsiombikas <nuclear@member.fsf.org>
     3.7 +
     3.8 +This program is free software: you can redistribute it and/or modify
     3.9 +it under the terms of the GNU General Public License as published by
    3.10 +the Free Software Foundation, either version 3 of the License, or
    3.11 +(at your option) any later version.
    3.12 +
    3.13 +This program is distributed in the hope that it will be useful,
    3.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    3.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    3.16 +GNU General Public License for more details.
    3.17 +
    3.18 +You should have received a copy of the GNU General Public License
    3.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    3.20 +*/
    3.21 +#ifndef COMM_H_
    3.22 +#define COMM_H_
    3.23 +
    3.24 +enum {
    3.25 +	COMM_SIO8_MASTER,
    3.26 +	COMM_SIO8_SLAVE,
    3.27 +	COMM_SIO32_MASTER,
    3.28 +	COMM_SIO32_SLAVE,
    3.29 +	COMM_UART,
    3.30 +	COMM_GPIO
    3.31 +};
    3.32 +
    3.33 +void comm_setup(int mode);
    3.34 +
    3.35 +/* synchronous transfer, blocks until complete */
    3.36 +void sio_transfer(void *in, const void *out);
    3.37 +
    3.38 +/* async transfer, returns immediately, raises SIGIO when complete */
    3.39 +void sio_transfer_async(void *in, const void *out);
    3.40 +
    3.41 +
    3.42 +/* GPIO functions */
    3.43 +enum { GPIO_DIR_IN, GPIO_DIR_OUT };
    3.44 +
    3.45 +void gpio_dir(int dir_so, int dir_si, int dir_sd, int dir_sc);
    3.46 +void gpio_dir_mask(unsigned char dir);
    3.47 +
    3.48 +void gpio_set(unsigned char val);
    3.49 +unsigned char gpio_get(void);
    3.50 +
    3.51 +#endif	/* COMM_H_ */

     4.1 --- a/src/error.c	Sun Mar 04 07:06:41 2012 +0200
     4.2 +++ b/src/error.c	Wed Mar 07 06:11:51 2012 +0200
     4.3 @@ -1,7 +1,7 @@
     4.4  /*
     4.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
     4.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
     4.7  
     4.8 -This file is part of libgba, a library for GameBoy Advance development.
     4.9 +This file is part of gbasys, a library for GameBoy Advance development.
    4.10  
    4.11  This program is free software; you can redistribute it and/or modify
    4.12  it under the terms of the GNU General Public License as published by
    4.13 @@ -23,11 +23,11 @@
    4.14  void panic(const char *str) {
    4.15  	set_video_mode(VMODE_LFB_240x160_16, 0);
    4.16  	clear_buffer(front_buffer, RGB(140, 30, 20));
    4.17 -	
    4.18 +
    4.19  	set_text_color(0xffff, RGB(140, 30, 20));
    4.20  	draw_string(" Don't Panic! ", 0, 0, front_buffer);
    4.21  	draw_string("_________________________", 0, 8, front_buffer);
    4.22  	if(str) draw_string(str, 0, 32, front_buffer);
    4.23  
    4.24 -	for(;;);	
    4.25 +	for(;;);
    4.26  }

     5.1 --- a/src/error.h	Sun Mar 04 07:06:41 2012 +0200
     5.2 +++ b/src/error.h	Wed Mar 07 06:11:51 2012 +0200
     5.3 @@ -1,5 +1,5 @@
     5.4  /*
     5.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
     5.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
     5.7  
     5.8  This file is part of libgba, a library for GameBoy Advance development.
     5.9  

     6.1 --- a/src/gfx.h	Sun Mar 04 07:06:41 2012 +0200
     6.2 +++ b/src/gfx.h	Wed Mar 07 06:11:51 2012 +0200
     6.3 @@ -23,7 +23,7 @@
     6.4  struct pixel_buffer {
     6.5  	int x, y, bpp;
     6.6  	void *pixels;
     6.7 -};	
     6.8 +};
     6.9  
    6.10  enum {
    6.11  	VMODE_LFB_240x160_16	= 3,
    6.12 @@ -52,7 +52,7 @@
    6.13  
    6.14  void copy_buffer(const struct pixel_buffer *src, struct pixel_buffer *dst);
    6.15  
    6.16 -#define wait_vsync()	while(*reg_vcount < front_buffer->yres)
    6.17 +#define wait_vsync()	while(*((volatile unsigned short*)0x4000006) < front_buffer->y)
    6.18  
    6.19  #define put_pixel(px, py, col, pbuf)	((unsigned short*)(pbuf)->pixels)[(py) * (pbuf)->x + (px)] = col
    6.20  void draw_line(int x1, int y1, int x2, int y2, unsigned short col, struct pixel_buffer *pbuf);

     7.1 --- a/src/intr.h	Sun Mar 04 07:06:41 2012 +0200
     7.2 +++ b/src/intr.h	Wed Mar 07 06:11:51 2012 +0200
     7.3 @@ -1,7 +1,7 @@
     7.4  /*
     7.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
     7.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
     7.7  
     7.8 -This file is part of libgba, a library for GameBoy Advance development.
     7.9 +This file is part of gbasys, a library for GameBoy Advance development.
    7.10  
    7.11  This program is free software; you can redistribute it and/or modify
    7.12  it under the terms of the GNU General Public License as published by

     8.1 --- a/src/signal.c	Sun Mar 04 07:06:41 2012 +0200
     8.2 +++ b/src/signal.c	Wed Mar 07 06:11:51 2012 +0200
     8.3 @@ -32,11 +32,11 @@
     8.4  
     8.5  void sig_init(void) {
     8.6  	int i;
     8.7 -	
     8.8 +
     8.9  	for(i=0; i<SIG_MAX; i++) {
    8.10  		default_sig_handler[i] = sig_invalid_handler;
    8.11  	}
    8.12 -	
    8.13 +
    8.14  	default_sig_handler[SIGALRM] = SIG_IGN;
    8.15  	default_sig_handler[SIGUSR1] = SIG_IGN;
    8.16  	default_sig_handler[SIGUSR2] = SIG_IGN;
    8.17 @@ -48,9 +48,9 @@
    8.18  
    8.19  sighandler_t signal(int signum, sighandler_t handler) {
    8.20  	sighandler_t prev = signal_handler[signum];
    8.21 -	
    8.22 +
    8.23  	signal_handler[signum] = handler == SIG_IGN ? 0 : (handler == SIG_DFL ? default_sig_handler[signum] : handler);
    8.24 -	
    8.25 +
    8.26  	return prev;
    8.27  }
    8.28  
    8.29 @@ -68,7 +68,7 @@
    8.30  	set_int();
    8.31  
    8.32  	while(wait_for_signal);
    8.33 -	
    8.34 +
    8.35  	/*errno = EINTR;*/
    8.36  	return -1;
    8.37  }
    8.38 @@ -80,3 +80,8 @@
    8.39  void restore_signal(int signum) {
    8.40  	signal_handler[signum] = saved_signal;
    8.41  }
    8.42 +
    8.43 +sighandler_t signal_func(int signum)
    8.44 +{
    8.45 +	return signal_handler[signum];
    8.46 +}

     9.1 --- a/src/signal.h	Sun Mar 04 07:06:41 2012 +0200
     9.2 +++ b/src/signal.h	Wed Mar 07 06:11:51 2012 +0200
     9.3 @@ -69,3 +69,4 @@
     9.4  
     9.5  void save_signal(int signum);
     9.6  void restore_signal(int signum);
     9.7 +sighandler_t signal_func(int signum);

    10.1 --- a/src/syscall.h	Sun Mar 04 07:06:41 2012 +0200
    10.2 +++ b/src/syscall.h	Wed Mar 07 06:11:51 2012 +0200
    10.3 @@ -1,7 +1,7 @@
    10.4  /*
    10.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
    10.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
    10.7  
    10.8 -This file is part of libgba, a library for GameBoy Advance development.
    10.9 +This file is part of gbasys, a library for GameBoy Advance development.
   10.10  
   10.11  This program is free software; you can redistribute it and/or modify
   10.12  it under the terms of the GNU General Public License as published by

    11.1 --- a/src/term.c	Sun Mar 04 07:06:41 2012 +0200
    11.2 +++ b/src/term.c	Wed Mar 07 06:11:51 2012 +0200
    11.3 @@ -1,7 +1,7 @@
    11.4  /*
    11.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
    11.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
    11.7  
    11.8 -This file is part of libgba, a library for GameBoy Advance development.
    11.9 +This file is part of gbasys, a library for GameBoy Advance development.
   11.10  
   11.11  This program is free software; you can redistribute it and/or modify
   11.12  it under the terms of the GNU General Public License as published by
   11.13 @@ -45,7 +45,7 @@
   11.14  	int c;
   11.15  
   11.16  	if(fp != stdin) panic("getc: only stdin valid");
   11.17 -	
   11.18 +
   11.19  	save_signal(SIGIO);
   11.20  	signal(SIGIO, noop);
   11.21  	while(!key_queue->next) pause();

    12.1 --- a/src/term.h	Sun Mar 04 07:06:41 2012 +0200
    12.2 +++ b/src/term.h	Wed Mar 07 06:11:51 2012 +0200
    12.3 @@ -1,7 +1,7 @@
    12.4  /*
    12.5 -Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
    12.6 +Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
    12.7  
    12.8 -This file is part of libgba, a library for GameBoy Advance development.
    12.9 +This file is part of gbasys, a library for GameBoy Advance development.
   12.10  
   12.11  This program is free software; you can redistribute it and/or modify
   12.12  it under the terms of the GNU General Public License as published by
   12.13 @@ -32,6 +32,8 @@
   12.14  int gba_getc(FILE *fp);
   12.15  int gba_putc(int c, FILE *fp);
   12.16  
   12.17 +int gba_printf(const char *fmt, ...);
   12.18 +
   12.19  #ifdef getc
   12.20  #undef getc
   12.21  #endif
   12.22 @@ -42,4 +44,9 @@
   12.23  #endif
   12.24  #define putc(c, fp)	gba_putc(c, fp)
   12.25  
   12.26 +#ifdef printf
   12.27 +#undef printf
   12.28 +#endif
   12.29 +#define printf gba_printf
   12.30 +
   12.31  #endif	/* _TERM_H_ */