mirror of
https://github.com/raphnet/gc_n64_usb-v3
synced 2024-11-12 20:25:04 -05:00
Add gamecube support (and rework makefiles)
This commit is contained in:
Raphael Assenat
parent
616e1d0d0c
commit
2444e7699b
2
Makefile
2
Makefile
@ -9,7 +9,7 @@ CFLAGS=-Wall -mmcu=$(CPU) -DF_CPU=16000000L -Os -DUART1_STDOUT
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LDFLAGS=-mmcu=$(CPU) -Wl,-Map=$(PROGNAME).map
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HEXFILE=$(PROGNAME).hex
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OBJS=main.o usbpad.o n64.o gcn64_protocol.o usart1.o usb.o bootloader.o
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include Makefile.inc
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all: $(HEXFILE)
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1
Makefile.inc
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1
Makefile.inc
Normal file
@ -0,0 +1 @@
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OBJS=main.o usb.o usbpad.o gcn64_protocol.o n64.o gamecube.o usart1.o bootloader.o
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@ -9,13 +9,10 @@ CFLAGS=-Wall -mmcu=$(CPU) -DF_CPU=16000000L -Os -DUART1_STDOUT -DSTK525
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LDFLAGS=-mmcu=$(CPU) -Wl,-Map=$(PROGNAME).map
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HEXFILE=$(PROGNAME).hex
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OBJS=main.o usbpad.o n64.o gcn64_protocol.o usart1.o usb.o bootloader.o
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include Makefile.inc
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all: $(HEXFILE)
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clean:
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rm -f $(PROGNAME).elf $(PROGNAME).hex $(PROGNAME).map $(OBJS)
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main.o: main.c reportdesc.c dataHidReport.c
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$(CC) $(CFLAGS) -c $< -o $@
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@ -31,10 +28,13 @@ main.o: main.c reportdesc.c dataHidReport.c
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$(PROGNAME).elf: $(OBJS)
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$(LD) $(OBJS) $(LDFLAGS) -o $(PROGNAME).elf
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$(PROGNAME).hex: $(PROGNAME).elf
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$(HEXFILE): $(PROGNAME).elf
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avr-objcopy -j .data -j .text -O ihex $(PROGNAME).elf $(PROGNAME).hex
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avr-size $(PROGNAME).elf
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clean:
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rm -f $(PROGNAME).elf $(PROGNAME).hex $(PROGNAME).map $(OBJS)
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fuse:
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flash: $(HEXFILE)
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200
gamecube.c
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200
gamecube.c
Normal file
@ -0,0 +1,200 @@
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/* Extenmote : NES, SNES, N64 and Gamecube to Wii remote adapter firmware
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* Copyright (C) 2012 Raphael Assenat <raph@raphnet.net>
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*
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* Based on:
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*
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* GC to N64 : Gamecube controller to N64 adapter firmware
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* Copyright (C) 2011 Raphael Assenat <raph@raphnet.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <string.h>
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#include "gamepads.h"
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#include "gamecube.h"
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#include "gcn64_protocol.h"
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/*********** prototypes *************/
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static void gamecubeInit(void);
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static char gamecubeUpdate(void);
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static char gamecubeChanged(void);
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/* What was most recently read from the controller */
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static gamepad_data last_built_report;
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/* What was most recently sent to the host */
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static gamepad_data last_sent_report;
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static char origins_set = 0;
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static unsigned char orig_x, orig_y, orig_cx, orig_cy;
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static void gamecubeInit(void)
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{
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gamecubeUpdate();
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}
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void gc_decodeAnswer()
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{
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unsigned char x,y,cx,cy;
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// Note: Checking seems a good idea, adds protection
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// against corruption (if the "constant" bits are invalid,
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// maybe others are : Drop the packet).
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//
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// However, I have seen bit 2 in a high state. To be as compatible
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// as possible, I decided NOT to look at these bits since instead
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// of being "constant" bits they might have a meaning I don't know.
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// Check the always 0 and always 1 bits
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#if 0
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if (gcn64_workbuf[0] || gcn64_workbuf[1] || gcn64_workbuf[2])
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return 1;
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if (!gcn64_workbuf[8])
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return 1;
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#endif
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/*
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(Source: Nintendo Gamecube Controller Protocol
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updated 8th March 2004, by James.)
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Bit Function
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0-2 Always 0 << RAPH: Not true, I see 001!
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3 Start
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4 Y
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5 X
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6 B
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7 A
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8 Always 1
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9 L
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10 R
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11 Z
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12-15 Up,Down,Right,Left
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16-23 Joy X
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24-31 Joy Y
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32-39 C Joystick X
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40-47 C Joystick Y
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48-55 Left Btn Val
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56-63 Right Btn Val
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*/
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last_built_report.pad_type = PAD_TYPE_GAMECUBE;
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last_built_report.gc.buttons = gcn64_protocol_getByte(0) | gcn64_protocol_getByte(8);
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x = gcn64_protocol_getByte(16);
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y = gcn64_protocol_getByte(24);
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cx = gcn64_protocol_getByte(32);
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cy = gcn64_protocol_getByte(40);
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last_built_report.gc.lt = gcn64_protocol_getByte(48);
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last_built_report.gc.rt = gcn64_protocol_getByte(56);
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gcn64_protocol_getBytes(0, 8, last_built_report.gc.raw_data);
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if (origins_set) {
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last_built_report.gc.x = ((int)x-(int)orig_x);
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last_built_report.gc.y = ((int)y-(int)orig_y);
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last_built_report.gc.cx = ((int)cx-(int)orig_cx);
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last_built_report.gc.cy = ((int)cy-(int)orig_cy);
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} else {
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orig_x = x;
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orig_y = y;
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orig_cx = cx;
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orig_cy = cy;
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last_built_report.gc.x = 0;
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last_built_report.gc.y = 0;
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last_built_report.gc.cx = 0;
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last_built_report.gc.cy = 0;
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origins_set = 1;
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}
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}
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static char gamecubeUpdate()
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{
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//unsigned char tmp=0;
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unsigned char tmpdata[8];
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unsigned char count;
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#if 0
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/* The GetID command. This is required for the Nintendo Wavebird to work... */
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tmp = GC_GETID;
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count = gcn64_transaction(&tmp, 1);
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if (count != GC_GETID_REPLY_LENGTH) {
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return 1;
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}
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/*
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* The wavebird needs time. It does not answer the
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* folowwing get status command if we don't wait here.
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*
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* A good 2:1 safety margin has been chosen.
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*
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*/
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// 10 : does not work
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// 20 : does not work
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// 25 : works
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// 30 : works
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_delay_us(50);
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#endif
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tmpdata[0] = GC_GETSTATUS1;
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tmpdata[1] = GC_GETSTATUS2;
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tmpdata[2] = GC_GETSTATUS3(0);
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count = gcn64_transaction(tmpdata, 3);
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if (count != GC_GETSTATUS_REPLY_LENGTH) {
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return 1;
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}
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gc_decodeAnswer();
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return 0;
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}
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static char gamecubeProbe(void)
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{
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origins_set = 0;
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if (gamecubeUpdate()) {
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return 0;
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}
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return 1;
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}
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static char gamecubeChanged(void)
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{
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return memcmp(&last_built_report, &last_sent_report, sizeof(gamepad_data));
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}
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static void gamecubeGetReport(gamepad_data *dst)
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{
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if (dst)
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memcpy(dst, &last_built_report, sizeof(gamepad_data));
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}
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Gamepad GamecubeGamepad = {
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.init = gamecubeInit,
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.update = gamecubeUpdate,
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.changed = gamecubeChanged,
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.getReport = gamecubeGetReport,
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.probe = gamecubeProbe,
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};
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Gamepad *gamecubeGetGamepad(void)
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{
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return &GamecubeGamepad;
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}
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7
gamecube.h
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7
gamecube.h
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@ -0,0 +1,7 @@
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#include "gamepads.h"
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#define GAMECUBE_UPDATE_NORMAL 0
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#define GAMECUBE_UPDATE_ORIGIN 1
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Gamepad *gamecubeGetGamepad(void);
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