ref: ec53ee13c13cd73cd364639bed0c63434236b789
dir: /psx/dev/pad.h/
#ifndef PAD_H
#define PAD_H
#include <stdint.h>
#include "ic.h"
#include "input.h"
#include "mcd.h"
#include "../input/sda.h"
#define PSX_PAD_BEGIN 0x1f801040
#define PSX_PAD_SIZE 0x10
#define PSX_PAD_END 0x1f80104f
/*
0 TX Ready Flag 1 (1=Ready/Started)
1 RX FIFO Not Empty (0=Empty, 1=Not Empty)
2 TX Ready Flag 2 (1=Ready/Finished)
3 RX Parity Error (0=No, 1=Error; Wrong Parity, when enabled) (sticky)
4 Unknown (zero) (unlike SIO, this isn't RX FIFO Overrun flag)
5 Unknown (zero) (for SIO this would be RX Bad Stop Bit)
6 Unknown (zero) (for SIO this would be RX Input Level AFTER Stop bit)
7 /ACK Input Level (0=High, 1=Low)
8 Unknown (zero) (for SIO this would be CTS Input Level)
9 Interrupt Request (0=None, 1=IRQ7) (See JOY_CTRL.Bit4,10-12) (sticky)
10 Unknown (always zero)
11-31 Baudrate Timer (21bit timer, decrementing at 33MHz)
*/
#define STAT_TXR1 0x0001
#define STAT_RXNE 0x0002
#define STAT_TXR2 0x0004
#define STAT_RXPE 0x0008
#define STAT_UNK4 0x0010
#define STAT_UNK5 0x0020
#define STAT_UNK6 0x0040
#define STAT_ACKL 0x0080
#define STAT_UNK8 0x0100
#define STAT_IRQ7 0x0200
/*
0 TX Enable (TXEN) (0=Disable, 1=Enable)
1 /JOYn Output (0=High, 1=Low/Select) (/JOYn as defined in Bit13)
2 RX Enable (RXEN) (0=Normal, when /JOYn=Low, 1=Force Enable Once)
3 Unknown? (read/write-able) (for SIO, this would be TX Output Level)
4 Acknowledge (0=No change, 1=Reset JOY_STAT.Bits 3,9) (W)
5 Unknown? (read/write-able) (for SIO, this would be RTS Output Level)
6 Reset (0=No change, 1=Reset most JOY_registers to zero) (W)
7 Not used (always zero) (unlike SIO, no matter of FACTOR)
8-9 RX Interrupt Mode (0..3 = IRQ when RX FIFO contains 1,2,4,8 bytes)
10 TX Interrupt Enable (0=Disable, 1=Enable) ;when JOY_STAT.0-or-2 ;Ready
11 RX Interrupt Enable (0=Disable, 1=Enable) ;when N bytes in RX FIFO
12 ACK Interrupt Enable (0=Disable, 1=Enable) ;when JOY_STAT.7 ;/ACK=LOW
13 Desired Slot Number (0=/JOY1, 1=/JOY2) (set to LOW when Bit1=1)
14-15 Not used (always zero)
*/
#define CTRL_TXEN 0x0001
#define CTRL_JOUT 0x0002
#define CTRL_RXEN 0x0004
#define CTRL_UNK3 0x0008
#define CTRL_ACKN 0x0010
#define CTRL_UNK5 0x0020
#define CTRL_REST 0x0040
#define CTRL_NUS7 0x0080
#define CTRL_RXIM 0x0300
#define CTRL_TXIE 0x0400
#define CTRL_RXIE 0x0800
#define CTRL_ACIE 0x1000
#define CTRL_SLOT 0x2000
enum {
DEST_JOY = 0x01,
DEST_MCD = 0x81
};
enum {
PAD_CONTROLLER_SDA,
PAD_CONTROLLER_MOUSE,
PAD_CONTROLLER_NAMCO_VOLUME,
PAD_CONTROLLER_SANKYO_NASUKA,
PAD_WHEEL_NEGCON,
PAD_WHEEL_MADCATZ,
PAD_WHEEL_MADCATZ_MC2
};
/*
To-do: Design API to interface any type of controller.
Possible names:
- psx_im (Input Method)
- psx_controller
- psx_input
Private API should contain a way to get the ID of
this controller, public API should contain the following
functions: (WIP)
- _write(data)
- _read()
_ _on_button_press(id)
- _on_button_release(id)
- _on_analog_change(id)
*/
typedef struct {
uint32_t bus_delay;
uint32_t io_base, io_size;
psx_ic_t* ic;
psx_input_t* joy_slot[2];
psx_mcd_t* mcd_slot[2];
int enable_once;
int cycles_until_irq;
int cycle_counter;
int dest[2];
int irq_bit;
uint16_t mode, ctrl, baud, stat;
} psx_pad_t;
psx_pad_t* psx_pad_create(void);
void psx_pad_init(psx_pad_t*, psx_ic_t*);
uint32_t psx_pad_read32(psx_pad_t*, uint32_t);
uint16_t psx_pad_read16(psx_pad_t*, uint32_t);
uint8_t psx_pad_read8(psx_pad_t*, uint32_t);
void psx_pad_write32(psx_pad_t*, uint32_t, uint32_t);
void psx_pad_write16(psx_pad_t*, uint32_t, uint16_t);
void psx_pad_write8(psx_pad_t*, uint32_t, uint8_t);
void psx_pad_destroy(psx_pad_t*);
void psx_pad_button_press(psx_pad_t*, int, uint32_t);
void psx_pad_button_release(psx_pad_t*, int, uint32_t);
void psx_pad_analog_change(psx_pad_t*, int, uint32_t, uint16_t);
void psx_pad_attach_joy(psx_pad_t*, int, psx_input_t*);
void psx_pad_detach_joy(psx_pad_t*, int);
void psx_pad_attach_mcd(psx_pad_t*, int, const char*);
void psx_pad_detach_mcd(psx_pad_t*, int);
void psx_pad_update(psx_pad_t*, int);
#endif