packet_utils.h

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#ifndef __PACKET_UTILS_H__
#define __PACKET_UTILS_H__
 
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdatomic.h>
#include "esp_log.h"
#include "esp_err.h"
 
#define PACKET_BYTES (109)
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum : uint8_t {
    DOMAIN_TM = 0x00,  
    DOMAIN_TC = 0x01,  
    DOMAIN_TEST = 0x02 
} domain_t;
 
typedef enum : uint8_t {
    TM_SDATA = 0x00,
    TM_BDATA = 0x01,
    TM_EVENT = 0x02
} tm_category_t;
 
typedef enum : uint8_t {
    TM_SDATA_SENSORS = 0x00,
    TM_SDATA_STATUS = 0x01
} tm_sdata_type_t;
 
typedef enum : uint8_t {
    TM_BDATA_IMAGE = 0x00,
    TM_BDATA_VIDEO = 0x01
} tm_bdata_type_t;
 
typedef enum : uint8_t {
    TM_EVENT_LOG = 0x00,
    TM_EVENT_ERROR = 0x01,
    TM_EVENT_CRASH = 0x02
} tm_event_type_t;
 
typedef enum : uint8_t {
    TC_CTRL = 0x00,
    TC_REQ = 0x01
} tc_category_t;
 
typedef enum : uint8_t {
    TC_REQ_SENSORS = 0x00,
    TC_REQ_STATUS = 0x01,
    TC_REQ_IMAGE = 0x02,
    TC_REQ_VIDEO = 0x03,
    TC_REQ_LOG = 0x04,
    TC_REQ_ERROR = 0x05,
    TC_REQ_CRASH = 0x06
} tc_req_type_t;
 
typedef enum : uint8_t {
    TC_CTRL_REBOOT = 0x00
} tc_ctrl_type_t;
 
typedef enum : uint8_t {
    TEST_WIMG = 0x00, 
    TEST_FRM = 0x01   
} test_category_t;
 
typedef struct packet packet_t;
typedef struct pkt_enc_pool pkt_enc_pool_t;
typedef struct pkt_dec_pool pkt_dec_pool_t;
 
typedef union {
    tm_category_t tm;
    tc_category_t tc;
    test_category_t test;
    uint8_t u8;
} category_t;
 
typedef union {
    tm_sdata_type_t sdata;
    tm_bdata_type_t bdata;
    tm_event_type_t event;
    tc_req_type_t req;
    tc_ctrl_type_t ctrl;
    uint8_t u8;
} type_t;
 
typedef struct {
    domain_t domain;
    category_t category;
    type_t type;
    uint16_t index;
    uint16_t total;
} header_t;
 
typedef enum {
    PKT_OK,
    PKT_FAIL,
    PKT_ERR_INVALID_ARG,
    PKT_ERR_SYNC
} pkt_err_t;
 
packet_t* pkt_create(void);
void pkt_destroy(packet_t* restrict pkt);
 
pkt_enc_pool_t* pkt_enc_pool_create(void);
void pkt_enc_pool_destroy(pkt_enc_pool_t* restrict pool);
 
pkt_dec_pool_t* pkt_dec_pool_create(void);
void pkt_dec_pool_destroy(pkt_dec_pool_t* restrict pool);
 
pkt_err_t pkt_encode(
    packet_t* restrict pkt,
    pkt_enc_pool_t* restrict pool
);
 
pkt_err_t pkt_decode(
    const packet_t* restrict pkt,
    pkt_dec_pool_t* restrict pool
);
 
pkt_err_t pkt_get_id(
    const packet_t* restrict pkt,
    uint16_t* id
);
 
pkt_err_t pkt_get_header(
    const packet_t* restrict pkt,
    header_t* header
);
 
pkt_err_t pkt_set_header(
    packet_t* restrict pkt,
    const header_t* restrict header
);
 
pkt_err_t pkt_get_payload(
    const packet_t* restrict pkt,
    uint8_t* payload,
    size_t len
);
 
pkt_err_t pkt_set_payload(
    packet_t* restrict pkt,
    const uint8_t* restrict payload,
    size_t len
);
 
#ifdef __cplusplus
}
#endif
 
#endif // __PACKET_UTILS_H__