/*------------------------------------------------------------
//                 Copyright (c) 2022 SmartLogic.
//                       ALL RIGHTS RESERVED
// -----------------------------------------------------------------
// Filename      : stc_drv.c
// Author        : weihua.li
// Created On    : 2022-11-23
// Last Modified :
// -----------------------------------------------------------------
// Description:
//
//
// ----------------------------------------------------------------*/

#ifndef __LC98S_DRV_H__
#define __LC98S_DRV_H__

#define NUMCHN              20
#define GPS_TX_BUF_SIZE   256
#define GPS_RX_BUF_SIZE   1024
#define GPS_SEM_NUM 13
#define HALF_BUFSIZE    511
#define MY_IPCKEY       0x10005500

#define MIN(x,y) ((x)<(y)?(x):(y))
#define MAX(x,y) ((x)>(y)?(x):(y))

#define GPS_SECONDS(tow,wnum) (604800*(wnum) + (tow))
#define MOD_2N(x,y) ((x) & (y-1))


#define GPS_FIX_OK    0x03
#define NAV_ALMANACH    0x04

/* arg for semctl system calls. */
union semun {
  int val;      /* value for SETVAL */
  struct semid_ds  *buf;  /* buffer for IPC_STAT & IPC_SET */
  unsigned short  *array; /* array for GETALL & SETALL */
  struct seminfo  *__buf; /* buffer for IPC_INFO */
};

typedef struct
{
    int32_t  latitude; /*degree 1e-7*/
    int32_t  longitude;/*degree 1e-7*/
    int32_t  altitude; /*millimeter*/
    uint8_t  gps_fix;
    uint8_t  fix_flag;
    uint32_t time_of_week;
    uint8_t  valid_flag;
    int8_t   leap_sec;
    uint16_t week_number;
    uint8_t  num_ch;
    int16_t  cab_dly;          /*cable delay time,uint:ns*/
    uint32_t pulse_width;   /*Length of time pulse*/
    int8_t   pps_status;     /*PPS: >0,postive; =0,no;<0, negative*/
    uint8_t  ant_state;
    uint8_t  sw_version[30];
    uint8_t  hw_version[10];
    uint8_t  sta_id[NUMCHN];        /*satellite ID*/
    uint8_t  cno[NUMCHN];           /*Carrier to Noise Ratio (Signal Strength)*/
    uint8_t  tracking_num;
    uint8_t  visable_num;
    uint8_t  sig_over_high;
    uint8_t  lock_state;   /*1: gps lock   0: gps unlock*/
    
}drv_gps_msg_s;

/********************************************************************/
typedef struct
{
    uint8_t      recv_buf[GPS_RX_BUF_SIZE];
    /*union
    {
        uint32_t whole;
        struct
        {
            uint16_t     recv_ptr;  //接收指针
            uint16_t     deal_ptr;  //处理指针
        }
    }*/
    uint16_t     recv_ptr;  /*接收指针*/
    uint16_t     deal_ptr;  /*处理指针*/
    uint16_t     recv_cnt;  /*最新接收到的消息长�?*/
    uint16_t     deal_cnt;  /*未处理消息长�?*/
    int32_t      send_sem;
    uint8_t     *send_buf_ptr;
    uint16_t     send_cnt;  /*待发送消息长�?*/ 
    uint16_t     frame_flag; //帧头
}gps_uart_s;

typedef struct
{
    int32_t latitude;   //纬度   单位：度/1e-7
    int32_t longitude; //经度   单位：度/1e-7
    int32_t altitude;   //高度   单位：毫�?
}location_info_s;

typedef struct
{
    uint8_t lock_flag;      /* GPS Fixed ok */
    uint8_t leap_valid;    /* leap second valid */
    uint8_t view_sats;     /* Satellites in view */
    uint8_t track_sats;    /* Satellites under tracking */
    uint8_t survey_in;       /*0 not in Survey-in mode*/
    uint8_t alma_complete;     /* 0 Calendar not complete */
    uint8_t resv[2];               /* resv*/
    float sig_level[12];  /* signal level of satellites */
}tracking_info_s;

int32_t drv_tfu_gps_init(void);
void drv_gps_recv_task(void);
int32_t init_clock_module(void);
int32_t get_receiver_fix_status();
int32_t get_src_time(time_t* time_ptr);

#ifdef __cplusplus
    #if __cplusplus
        }
    #endif
#endif

#endif
/**********************************************************************/