art_fetch.h

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#ifndef RCBENCH_ART_FETCH_H
#define RCBENCH_ART_FETCH_H
 
#include <stdbool.h>
#include <stdint.h>
 
#include "art_store.h"
#include "link_artxfer.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    bool (*read_page)(void *ctx, uint8_t page, uint8_t count, uint16_t *regs);
    bool (*write_reg)(void *ctx, uint8_t page, uint8_t reg, uint16_t value);
    void *ctx;
} art_transport_t;

typedef enum {
    ART_FETCH_IDLE = 0,  
    ART_FETCH_RUNNING,   
    ART_FETCH_DONE,      
    ART_FETCH_FAILED,    
} art_fetch_state_t;

typedef struct {
    link_artxfer_t    x;
    art_fetch_state_t state;
    const char       *why;
} art_fetch_t;

bool art_fetch_meta(const art_transport_t *t, uint16_t *meta_regs,
                    uint32_t *bytes, const char **why);

bool art_fetch_key(const uint16_t *meta_regs, uint16_t board,
                   art_entry_t *out);

bool art_fetch_begin(art_fetch_t *f, const uint16_t *meta_regs, uint8_t *buf,
                     uint32_t cap);

art_fetch_state_t art_fetch_step(art_fetch_t *f, const art_transport_t *t,
                                 unsigned blocks);

uint16_t art_fetch_format(const art_fetch_t *f);
uint16_t art_fetch_width(const art_fetch_t *f);
uint16_t art_fetch_height(const art_fetch_t *f);
uint16_t art_fetch_crc(const art_fetch_t *f);
uint32_t art_fetch_hash(const art_fetch_t *f);
uint32_t art_fetch_bytes(const art_fetch_t *f);

const char *art_fetch_why(const art_fetch_t *f);
 
#ifdef __cplusplus
}
#endif
 
#endif /* RCBENCH_ART_FETCH_H */