injector.h

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#pragma once
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
 
#include "gt911_emu.h"
#include "inj_line_id.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define INJ_PROTOCOL        1
#define INJ_RES_X           1024u
#define INJ_RES_Y           600u
#define INJ_LINE_MAX        63u    
#define INJ_REPORT_MS       10u    
#define INJ_ACK_TIMEOUT_MS  100u   
#define INJ_TAP_MS          100u   
#define INJ_MS_MAX          30000u 
#define INJ_SWIPE_STEP_PX   100u   
#define INJ_LIVE_MS         100u   
#define INJ_CONTACTS        GT911_EMU_POINTS
#define INJ_ID_MAX          15u
#define INJ_REPLY_LEN       128u
#define INJ_REPLIES         8u

typedef enum {
    INJ_LISTEN = 0,   
    INJ_ACTIVE,       
} inj_state_t;

typedef enum {
    INJ_G_NONE = 0,   
    INJ_G_TAP,        
    INJ_G_HOLD,       
    INJ_G_SWIPE,      
    INJ_G_RELEASE,    
} inj_gesture_t;

typedef enum {
    INJ_LED_LISTEN = 0,  
    INJ_LED_WIRING_BAD,  
    INJ_LED_OFF,         
    INJ_LED_POLLED,      
    INJ_LED_DOWN,        
    INJ_LED_FAILED,      
} inj_led_t;

typedef struct {
    inj_gesture_t kind;      
    char     tag[8];         
    uint16_t x0;             
    uint16_t y0;             
    uint16_t x1;             
    uint16_t y1;             
    uint32_t ms;             
    bool     down_published; 
    bool     lifting;        
    bool     in_frame;       
    bool     first_acked;    
    uint32_t t_first;        
    uint32_t frames;         
    uint16_t px;             
    uint16_t py;             
    bool     slowed;         
    bool     end_published;  
    bool     end_acked;      
} inj_contact_t;

typedef struct {
    inj_state_t state;       
    gt911_emu_t emu;         
 
    char    line[INJ_LINE_MAX + 1u]; 
    uint8_t len;             
    bool    overflow;        
 
    inj_line_result_t wiring; 
    bool wiring_running;     
    bool wiring_wanted;      
    bool attach_wanted;      
 
    inj_contact_t c[INJ_ID_MAX + 1u]; 
    bool     pending;        
    bool     published;      
    uint32_t t_pub;          
    bool     withdraw_due;   
    bool     failed;         
 
    uint32_t seen_reads;     
    uint32_t seen_acks;      
    uint32_t seen_product;   
    bool     any_read;       
    uint32_t t_last_read;    
 
    char    replies[INJ_REPLIES][INJ_REPLY_LEN]; 
    uint8_t r_head;          
    uint8_t r_count;         
} injector_t;

void injector_init(injector_t *in);

void injector_input(injector_t *in, const char *bytes, size_t n,
                    uint32_t now_ms);

void injector_poll(injector_t *in, uint32_t now_ms);

bool injector_take_wiring(injector_t *in);

void injector_wiring_done(injector_t *in, const inj_line_result_t *r);

bool injector_take_attach(injector_t *in);

void injector_host_closed(injector_t *in);

bool injector_take_reply(injector_t *in, char *out, size_t n);

inj_led_t injector_led(const injector_t *in, uint32_t now_ms);

const char *inj_gesture_name(inj_gesture_t g);
 
#ifdef __cplusplus
}
#endif