mrtk_rtcm.c File Reference

#include "mrtklib/mrtk_rtcm.h"
#include <stdlib.h>
#include <string.h>
#include "mrtklib/mrtk_bits.h"
#include "mrtklib/mrtk_trace.h"

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Macros
#define	RTCM2PREAMB   0x66 /* rtcm ver.2 frame preamble */
#define	RTCM3PREAMB   0xD3 /* rtcm ver.3 frame preamble */

Functions
int	init_rtcm (rtcm_t *rtcm)
	Initialize RTCM control struct.
void	free_rtcm (rtcm_t *rtcm)
	Free RTCM control struct.
lclblock_t *	rtcm_lclblk (rtcm_t *rtcm)
	Get the local correction block, lazily allocating it on first use.
int	input_rtcm2 (rtcm_t *rtcm, uint8_t data)
	Input RTCM 2 message from stream (byte-by-byte).
int	input_rtcm3 (rtcm_t *rtcm, uint8_t data)
	Input RTCM 3 message from stream (byte-by-byte).
int	input_rtcm2f (rtcm_t *rtcm, FILE *fp)
	Input RTCM 2 message from file.
int	input_rtcm3f (rtcm_t *rtcm, FILE *fp)
	Input RTCM 3 message from file.
int	gen_rtcm2 (rtcm_t *rtcm, int type, int sync)
	Generate RTCM 2 message.
int	gen_rtcm3 (rtcm_t *rtcm, int type, int subtype, int sync)
	Generate RTCM 3 message.

Macro Definition Documentation

RTCM2PREAMB

#define RTCM2PREAMB   0x66 /* rtcm ver.2 frame preamble */

Definition at line 28 of file mrtk_rtcm.c.

Referenced by input_rtcm2().

RTCM3PREAMB

#define RTCM3PREAMB   0xD3 /* rtcm ver.3 frame preamble */

Definition at line 29 of file mrtk_rtcm.c.

Referenced by gen_rtcm3(), and input_rtcm3().

Function Documentation

free_rtcm()

void free_rtcm

(

rtcm_t *

rtcm

)

Free RTCM control struct.

Parameters

[in,out]

rtcm

RTCM control struct

Definition at line 118 of file mrtk_rtcm.c.

References free, rtcm, and trace().

Referenced by free_strfile(), freepreceph(), init_rtcm(), rtksvrthread(), strconvfree(), and strconvnew().

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gen_rtcm2()

int gen_rtcm2	(	rtcm_t *	rtcm,
		int	type,
		int	sync )

Generate RTCM 2 message.

Parameters

[in,out]	rtcm	RTCM control struct
[in]	type	Message type
[in]	sync	Sync flag (1:another message follows)

Returns

Status (1:ok, 0:error)

Definition at line 369 of file mrtk_rtcm.c.

References rtcm, and trace().

Referenced by write_nav(), write_nav_cycle(), write_obs(), and write_sta_cycle().

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gen_rtcm3()

int gen_rtcm3	(	rtcm_t *	rtcm,
		int	type,
		int	subtype,
		int	sync )

Generate RTCM 3 message.

Parameters

[in,out]	rtcm	RTCM control struct
[in]	type	Message type
[in]	subtype	Message subtype (0:no subtype)
[in]	sync	Sync flag (1:another message follows)

Returns

Status (1:ok, 0:error)

Definition at line 392 of file mrtk_rtcm.c.

References encode_rtcm3(), rtcm, RTCM3PREAMB, rtk_crc24q(), setbitu(), and trace().

Referenced by output_lclcmb(), write_nav(), write_nav_cycle(), write_obs(), write_rtcm3_msm(), and write_sta_cycle().

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init_rtcm()

int init_rtcm

(

rtcm_t *

rtcm

)

Initialize RTCM control struct.

Parameters

[out]

rtcm

RTCM control struct

Returns

Status (1:ok, 0:memory allocation error)

Note

The struct must be zero-initialized (calloc/memset) before the first call; an existing lclblk allocation is preserved across re-init.

Definition at line 37 of file mrtk_rtcm.c.

References free_rtcm(), malloc, MAXOBS, MAXPRNGLO, MAXSAT, rtcm, and trace().

Referenced by gen_strfile(), readpreceph(), rtksvrstart(), and strconvnew().

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input_rtcm2()

int input_rtcm2	(	rtcm_t *	rtcm,
		uint8_t	data )

Input RTCM 2 message from stream (byte-by-byte).

Parameters

[in,out]	rtcm	RTCM control struct
[in]	data	Stream data (1 byte)

Returns

Status (-1:error, 0:no message, 1:obs data, 2:ephemeris, ...)

Definition at line 159 of file mrtk_rtcm.c.

References decode_rtcm2(), decode_word(), rtcm, RTCM2PREAMB, and trace().

Referenced by decoderaw(), input_rtcm2f(), and strconv().

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input_rtcm2f()

int input_rtcm2f	(	rtcm_t *	rtcm,
		FILE *	fp )

Input RTCM 2 message from file.

Parameters

[in,out]	rtcm	RTCM control struct
[in]	fp	File pointer

Returns

Status (-2:end of file, -1:error, 0:no message, 1:obs, 2:eph, ...)

Definition at line 325 of file mrtk_rtcm.c.

References input_rtcm2(), rtcm, and trace().

Referenced by input_strfile().

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input_rtcm3()

int input_rtcm3	(	rtcm_t *	rtcm,
		uint8_t	data )

Input RTCM 3 message from stream (byte-by-byte).

Parameters

[in,out]	rtcm	RTCM control struct
[in]	data	Stream data (1 byte)

Returns

Status (-1:error, 0:no message, 1:obs data, 2:ephemeris, ...)

Definition at line 289 of file mrtk_rtcm.c.

References decode_rtcm3(), getbitu(), rtcm, RTCM3PREAMB, rtk_crc24q(), and trace().

Referenced by decoderaw(), input_rtcm3f(), and strconv().

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input_rtcm3f()

int input_rtcm3f	(	rtcm_t *	rtcm,
		FILE *	fp )

Input RTCM 3 message from file.

Parameters

[in,out]	rtcm	RTCM control struct
[in]	fp	File pointer

Returns

Status (-2:end of file, -1:error, 0:no message, 1:obs, 2:eph, ...)

Definition at line 347 of file mrtk_rtcm.c.

References input_rtcm3(), rtcm, and trace().

Referenced by input_strfile(), and update_rtcm().

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rtcm_lclblk()

lclblock_t * rtcm_lclblk

(

rtcm_t *

rtcm

)

Get the local correction block, lazily allocating it on first use.

Parameters

[in,out]

rtcm

RTCM control struct

Returns

Local correction block (NULL: memory allocation error).

Definition at line 139 of file mrtk_rtcm.c.

References calloc, and rtcm.

Referenced by decode_lcliono(), and decode_lcltrop().

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