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Unterstützung für NES gamecontroller

This commit is contained in:
gir 2009-07-09 20:08:40 +00:00
parent 6f1f03dc63
commit 11aa8c9f37
7 changed files with 150 additions and 14 deletions
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5
borg_hw/borg_hw_pd1165.c
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@ -150,6 +150,9 @@ SIGNAL(SIG_OUTPUT_COMPARE0)
//Watchdog zurücksetzen
wdt_reset();
//Tasten für joystick einlesen
readButtons();
for(row=0; row < 8; row++){
pd1165_write(row, pixmap[plane][row][0]);
CTRLPORT &= ~((1<<BIT_CS3)|(1<<BIT_RW));
@ -243,7 +246,7 @@ void timer2_on(){
*/
TCCR2 = (1<<WGM21) | (1<<COM20) | 1 ; //CTC, OC2 toggle, clk/1
OCR2 = 100; //80kHz clock on OC2
OCR2 = 92; //80kHz clock on OC2
}

5
joystick/Makefile
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@ -6,4 +6,9 @@ include $(TOPDIR)/defaults.mk
SRC = joystick.c
SRC_SIM =
ifeq ($(JOYSTICK_TYPE), JOYSTICK_NES)
SRC = nes_pad.c
endif
include $(TOPDIR)/rules.mk

67
joystick/config.in
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@ -1,5 +1,11 @@
dep_bool_menu "joystick support" JOYSTICK_SUPPORT y
choice 'Joystick type' \
"NES-Pad JOYSTICK_NES \
Parallel JOYSTICK_PARALLEL" \
'JOYSTICK_PARALLEL' JOYSTICK_TYPE
###################### Parallel joystick menu #################################
dep_bool_menu "parallel joystick support" PARALLEL_JOYSTICK_SUPPORT y
@ -96,6 +102,67 @@ choice 'Bit fire' \
endmenu
###############################################################################
###################### NES-Pad menu #################################
dep_bool_menu "nes-pad support" NES_PAD_SUPPORT y
choice 'Port clk' \
"PORTA PORTA \
PORTB PORTB \
PORTC PORTC \
PORTD PORTD" \
'PORTB' NES_PAD_PORT_CLK
choice 'Port ds' \
"PORTA PORTA \
PORTB PORTB \
PORTC PORTC \
PORTD PORTD" \
'PORTB' NES_PAD_PORT_PL
choice 'Pin pl' \
"PINA PINA \
PINB PINB \
PINC PINC \
PIND PIND" \
'PINB' NES_PAD_PIN_DS
choice 'Bit clk' \
"Bit0 0 \
Bit1 1 \
Bit2 2 \
Bit3 3 \
Bit4 4 \
Bit5 5 \
Bit6 6 \
Bit7 7" \
'Bit0' NES_PAD_BIT_CLK
choice 'Bit pl' \
"Bit0 0 \
Bit1 1 \
Bit2 2 \
Bit3 3 \
Bit4 4 \
Bit5 5 \
Bit6 6 \
Bit7 7" \
'Bit0' NES_PAD_BIT_PL
choice 'Bit ds' \
"Bit0 0 \
Bit1 1 \
Bit2 2 \
Bit3 3 \
Bit4 4 \
Bit5 5 \
Bit6 6 \
Bit7 7" \
'Bit0' NES_PAD_BIT_DS
endmenu
###############################################################################
endmenu

1
joystick/joystick.c
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@ -8,6 +8,7 @@ unsigned char waitForFire;
inline void joy_init(){
PORT_FROM_PIN(JOYSTICK_PIN_UP ) |= (1<<JOYSTICK_BIT_UP );
PORT_FROM_PIN(JOYSTICK_PIN_DOWN ) |= (1<<JOYSTICK_BIT_DOWN );
PORT_FROM_PIN(JOYSTICK_PIN_LEFT ) |= (1<<JOYSTICK_BIT_LEFT );

38
joystick/joystick.h
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@ -4,25 +4,39 @@
extern unsigned char waitForFire;
void joy_init();
#ifdef AVR
#include <avr/io.h>
# include <avr/io.h>
# ifdef NES_PAD_SUPPORT
#define JOYISUP (!(JOYSTICK_PIN_UP & (1<<JOYSTICK_BIT_UP )))
#define JOYISDOWN (!(JOYSTICK_PIN_DOWN & (1<<JOYSTICK_BIT_DOWN )))
#define JOYISLEFT (!(JOYSTICK_PIN_LEFT & (1<<JOYSTICK_BIT_LEFT )))
#define JOYISRIGHT (!(JOYSTICK_PIN_RIGHT & (1<<JOYSTICK_BIT_RIGHT)))
#define JOYISFIRE (!(JOYSTICK_PIN_FIRE & (1<<JOYSTICK_BIT_FIRE )))
extern volatile unsigned char fakeport;
# define JOYISUP (!! ((1<<4) & fakeport))
# define JOYISDOWN (!! ((1<<5) & fakeport))
# define JOYISLEFT (!! ((1<<6) & fakeport))
# define JOYISRIGHT (!! ((1<<7) & fakeport))
# define JOYISFIRE (!! ((1<<0) & fakeport))
# else
# define JOYISUP (!(JOYSTICK_PIN_UP & (1<<JOYSTICK_BIT_UP )))
# define JOYISDOWN (!(JOYSTICK_PIN_DOWN & (1<<JOYSTICK_BIT_DOWN )))
# define JOYISLEFT (!(JOYSTICK_PIN_LEFT & (1<<JOYSTICK_BIT_LEFT )))
# define JOYISRIGHT (!(JOYSTICK_PIN_RIGHT & (1<<JOYSTICK_BIT_RIGHT)))
# define JOYISFIRE (!(JOYSTICK_PIN_FIRE & (1<<JOYSTICK_BIT_FIRE )))
# endif
#else
extern unsigned char fakeport;
extern volatile unsigned char fakeport;
#define JOYISUP (0x10 & fakeport)
#define JOYISDOWN (0x08 & fakeport)
#define JOYISLEFT (0x02 & fakeport)
#define JOYISRIGHT (0x04 & fakeport)
#define JOYISFIRE (0x01 & fakeport)
# define JOYISUP (0x10 & fakeport)
# define JOYISDOWN (0x08 & fakeport)
# define JOYISLEFT (0x02 & fakeport)
# define JOYISRIGHT (0x04 & fakeport)
# define JOYISFIRE (0x01 & fakeport)
#endif

45
joystick/nes_pad.c Normal file
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@ -0,0 +1,45 @@
#include <avr/io.h>
#include <util/delay.h>
#include "../makros.h"
#include "../config.h"
#define NES_PAD_DDR_PL DDR(NES_PAD_PORT_PL)
#define NES_PAD_DDR_CLK DDR(NES_PAD_PORT_CLK)
#define NES_PAD_DDR_DS DDR(NES_PAD_PIN_DS)
volatile unsigned char fakeport;
unsigned char waitForFire;
void joy_init(){
NES_PAD_DDR_PL |= 1<<NES_PAD_BIT_PL;
NES_PAD_DDR_CLK |= 1<<NES_PAD_BIT_CLK;
NES_PAD_DDR_DS &= ~(1<<NES_PAD_BIT_DS);
}
void readButtons(){
NES_PAD_PORT_PL |= 1<<NES_PAD_BIT_PL;
asm volatile("nop\r\t");
asm volatile("nop\r\t");
asm volatile("nop\r\t");
NES_PAD_PORT_PL &= ~ (1<<NES_PAD_BIT_PL);
uint8_t i, port=0;
for(i=0; i<8; i++){
port >>= 1;
_delay_us(1);
if(NES_PAD_PIN_DS & (1 << NES_PAD_BIT_DS))
port |=0x80;
NES_PAD_PORT_CLK |= 1<<NES_PAD_BIT_CLK;
asm volatile("nop\r\t");
asm volatile("nop\r\t");
NES_PAD_PORT_CLK &= ~(1<<NES_PAD_BIT_CLK);
}
fakeport= ~port;
}

1
main.c
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@ -41,4 +41,5 @@ int main (void){
display_loop();
}