stock_wire.h

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#pragma once
#include <stdbool.h>
#include <stdint.h>

 
// STOCK_SLOTS_MAX and STOCK_SYMBOL_LEN are generated from the phone's cap table, so the two sides
// of the strip cannot drift. A ticker runs to about six characters and a status word such as
// "INVALID KEY" to eleven, which is what the label width is sized for
#include "wire/wire_caps.g.h"

typedef struct
{
    char symbol[STOCK_SYMBOL_LEN]; 
    int  price_cents;              
    int  change_pct;               
    bool ok;                       
} StockSlot;

typedef struct
{
    uint8_t   count;                 
    StockSlot slot[STOCK_SLOTS_MAX]; 
} StockStrip;

bool stock_wire_decode(const uint8_t *buf, uint16_t len, StockStrip *out);