joybus_accessory_internal.h

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#ifndef __LIBDRAGON_JOYBUS_ACCESSORY_INTERNAL_H
#define __LIBDRAGON_JOYBUS_ACCESSORY_INTERNAL_H
 
#include <stdint.h>
 
#include "joybus.h"
#include "joybus_commands.h"
#include "joybus_accessory.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define JOYBUS_ACCESSORY_TRANSFER_BANK_SIZE 0x4000
#define JOYBUS_ACCESSORY_TRANSFER_BANK_MASK 0x3FFF
 
#define JOYBUS_ACCESSORY_ADDR_MASK_OFFSET    0xFFE0
#define JOYBUS_ACCESSORY_ADDR_MASK_CHECKSUM  0x001F
 
#define JOYBUS_ACCESSORY_ADDR_LABEL            0x0000
#define JOYBUS_ACCESSORY_ADDR_PROBE            0x8000
#define JOYBUS_ACCESSORY_ADDR_RUMBLE_MOTOR     0xC000
#define JOYBUS_ACCESSORY_ADDR_BIO_PULSE        0xC000
#define JOYBUS_ACCESSORY_ADDR_SNAP_STATE       0xC000
#define JOYBUS_ACCESSORY_ADDR_TRANSFER_BANK    0xA000
#define JOYBUS_ACCESSORY_ADDR_TRANSFER_STATUS  0xB000
#define JOYBUS_ACCESSORY_ADDR_TRANSFER_CART    0xC000
 
#define JOYBUS_ACCESSORY_PROBE_ABSENT           0x00
#define JOYBUS_ACCESSORY_PROBE_RUMBLE_PAK       0x80
#define JOYBUS_ACCESSORY_PROBE_BIO_SENSOR       0x81
#define JOYBUS_ACCESSORY_PROBE_TRANSFER_PAK_ON  0x84
#define JOYBUS_ACCESSORY_PROBE_SNAP_STATION     0x85
#define JOYBUS_ACCESSORY_PROBE_TRANSFER_PAK_OFF 0xFE
 
#define JOYBUS_SNAP_STATION_STATE_IDLE           0x00
#define JOYBUS_SNAP_STATION_STATE_PRE_SAVE       0xCC
#define JOYBUS_SNAP_STATION_STATE_POST_SAVE      0x33
#define JOYBUS_SNAP_STATION_STATE_RESET_CONSOLE  0x5A
#define JOYBUS_SNAP_STATION_STATE_PRE_ROLL       0x01
#define JOYBUS_SNAP_STATION_STATE_CAPTURE_PHOTO  0x02
#define JOYBUS_SNAP_STATION_STATE_POST_ROLL      0x04
#define JOYBUS_SNAP_STATION_STATE_BUSY           0x08
 
#define JOYBUS_TRANSFER_PAK_STATUS_ACCESS       (1<<0)
#define JOYBUS_TRANSFER_PAK_STATUS_BOOTING      (1<<2)
#define JOYBUS_TRANSFER_PAK_STATUS_RESET        (1<<3)
#define JOYBUS_TRANSFER_PAK_STATUS_CART_PULLED  (1<<6)
#define JOYBUS_TRANSFER_PAK_STATUS_POWER        (1<<7)
 
typedef union
{
    uint8_t raw;
    struct __attribute__((packed))
    {
 
        unsigned access : 1;
        unsigned : 1;  
        unsigned booting : 1;
        unsigned reset : 1;
        unsigned : 2; 
        unsigned cart_pulled : 1;
        unsigned power : 1;
    };
} joybus_transfer_pak_status_t;
 
uint16_t joybus_accessory_calculate_addr_checksum(uint16_t addr);
 
uint8_t joybus_accessory_calculate_data_crc(const uint8_t *data);
 
joybus_accessory_io_status_t joybus_accessory_compare_data_crc(const uint8_t *data, uint8_t data_crc);
 
void joybus_accessory_read_async(int port, uint16_t addr, joybus_callback_t callback, void *ctx);
 
void joybus_accessory_write_async(int port, uint16_t addr, const uint8_t *data, joybus_callback_t callback, void *ctx);
 
#ifdef __cplusplus
}
#endif
 
 
#endif