datalog.c File Reference

Data log module implementation file. Implements the GPS data logging feature of the GPS device. More...

#include <stdbool.h>
#include "datalog.h"
#include "common.h"
#include "configuration.h"
#include "err.h"
#include "init.h"
#include "log.h"
#include "modules.h"
#include "cmd.h"
#include "ff.h"
#include "arm_cortex_m4_systick.h"
#include "neo6.h"

Include dependency graph for datalog.c:

Go to the source code of this file.

Classes
struct	datalog_handle_s
	Internal structure representing a single data log instance. More...
struct	internal_state_s
	Internal state of the SysTick driver. More...

Functions
static ERR_te	datalog_cmd_list_handler (uint32_t argc, char **argv)
	CLI handler for the "list" command. Logs the names of all active data log handles.
ERR_te	datalog_init_subsys (void)
	Initializes the data log subsystem.
ERR_te	datalog_deinit_subsys (void)
	Deinitializes the data log subsystem.
ERR_te	datalog_start_subsys (void)
	Starts the data log subsystem.
ERR_te	datalog_stop_subsys (void)
	Stops the data log subsystem.
ERR_te	datalog_init_handle (DATALOG_CFG_ts const *datalog_cfg, DATALOG_HANDLE_ts **datalog_handle_o)
	Initializes and registers a data log handle.
ERR_te	datalog_deinit_handle (DATALOG_HANDLE_ts const *datalog_handle)
	Deinitializes a data log handle.
ERR_te	datalog_run_handle (DATALOG_HANDLE_ts *datalog_handle)
	Writes a GPS data entry to the log file if the logging interval has elapsed.

Variables
static struct internal_state_s	internal_state
	Singleton instance of the data log subsystem internal state.
CMD_INFO_ts	datalog_cmds []
	Table of CLI commands registered by the data log subsystem.
CMD_CLIENT_INFO_ts	datalog_cmd_client_info
	Registration descriptor passed to the command subsystem.

Detailed Description

Data log module implementation file. Implements the GPS data logging feature of the GPS device.

Author

github.com/Baksi675

Version

0.1

Date

2026-02-15

Copyright

Copyright (c) 2026

Definition in file datalog.c.

Variable Documentation

internal_state

struct internal_state_s internal_state

static

Singleton instance of the data log subsystem internal state.

Definition at line 97 of file datalog.c.

datalog_cmds

CMD_INFO_ts datalog_cmds[]

Initial value:

= {
    {
        .name = "list",
        .help = "Lists active datalog objects, usage: datalog list",
        .handler = datalog_cmd_list_handler
    }
}

Table of CLI commands registered by the data log subsystem.

Registered with the command subsystem via datalog_cmd_client_info during datalog_init_subsys.

Definition at line 109 of file datalog.c.

                             {
    {
        .name = "list",
        .help = "Lists active datalog objects, usage: datalog list",
        .handler = datalog_cmd_list_handler
    }
};

datalog_cmd_client_info

CMD_CLIENT_INFO_ts datalog_cmd_client_info

Initial value:

= {
    .cmds_ptr = datalog_cmds,
    .num_cmds = sizeof(datalog_cmds) / sizeof(datalog_cmds[0]),
    .log_level_ptr = &internal_state.log_level,
    .name = "datalog"
}

Registration descriptor passed to the command subsystem.

Bundles the command table, its size, the subsystem name prefix used on the CLI, and a pointer to the runtime log-level variable.

Definition at line 124 of file datalog.c.

                                             {
    .cmds_ptr = datalog_cmds,
    .num_cmds = sizeof(datalog_cmds) / sizeof(datalog_cmds[0]),
    .log_level_ptr = &internal_state.log_level,
    .name = "datalog"
};