endpoint.h

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#pragma once

#include <wio.h>
#include "defs.h"
#include "transmission.h"

typedef struct wtp {
    wtp_link_state_t _downlink_state;
    wtp_link_state_t _uplink_state;

    wio_buf_t _epc_buf;
    uint8_t* _read_mem;
    uint8_t* _write_mem;

    bool _read_mem_loaded;

    uint16_t _pkt_begin;

    wtp_tx_ctrl_t _tx_ctrl;
    wtp_rx_ctrl_t _rx_ctrl;

    wio_queue_t _send_cb_queue;
    wio_queue_t _send_cb_data_queue;

    wio_queue_t _recv_cb_queue;
    wio_queue_t _recv_cb_data_queue;

    wio_callback_t _event_cb[_WTP_EVENT_MAX];
    void* _event_cb_data[_WTP_EVENT_MAX];
} wtp_t;

extern wtp_status_t wtp_init(
    wtp_t* self,
    uint8_t* epc_mem,
    uint16_t epc_buf_size,
    uint8_t* read_mem,
    uint8_t* write_mem,
    uint16_t window_size,
    uint16_t timeout,
    uint16_t tx_buf_size,
    uint16_t rx_buf_size,
    uint8_t n_send,
    uint8_t n_recv
);

extern wtp_status_t wtp_fini(
    wtp_t* self
);

extern wtp_status_t wtp_connect(
    wtp_t* self
);

extern wtp_status_t wtp_close(
    wtp_t* self
);

extern wtp_status_t wtp_send(
    wtp_t* self,
    uint8_t* data,
    uint16_t size,
    void* cb_data,
    wio_callback_t cb
);

extern wtp_status_t wtp_recv(
    wtp_t* self,
    void* cb_data,
    wio_callback_t cb
);

extern wtp_status_t wtp_on_event(
    wtp_t* self,
    wtp_event_t event,
    void* cb_data,
    wio_callback_t cb
);

extern wtp_status_t wtp_trigger_event(
    wtp_t* self,
    wtp_event_t event,
    wtp_status_t status,
    void* result
);

extern wtp_status_t wtp_load_read_mem(
    wtp_t* self
);

extern wtp_status_t wtp_handle_blockwrite(
    wtp_t* self
);

extern wtp_status_t wtp_verify_checksum(
    wtp_t* self,
    wio_buf_t* write_buf
);

extern uint8_t wtp_xor_checksum(
    uint8_t* mem,
    uint16_t begin,
    uint16_t end
);