STP Decoder API

Data Structures
union	mipi_stp_decoder_data
	Union with data associated with a given STP opcode. More...
struct	mipi_stp_decoder_config
	Decoder configuration. More...

Macros
#define	STP_DECODER_TYPE2STR(_type)
	Convert type to a string literal.

Typedefs
typedef void(*	mipi_stp_decoder_cb) (enum mipi_stp_decoder_ctrl_type type, union mipi_stp_decoder_data data, uint64_t *ts, bool marked)
	Callback signature.

Enumerations
enum	mipi_stp_decoder_ctrl_type {   STP_DATA4 = 1 , STP_DATA8 = 2 , STP_DATA16 = 4 , STP_DATA32 = 8 ,   STP_DATA64 = 16 , STP_DECODER_NULL = 128 , STP_DECODER_MAJOR , STP_DECODER_MERROR ,   STP_DECODER_CHANNEL , STP_DECODER_VERSION , STP_DECODER_FREQ , STP_DECODER_GERROR ,   STP_DECODER_FLAG , STP_DECODER_ASYNC , STP_DECODER_NOT_SUPPORTED }
	STPv2 opcodes. More...

Functions
int	mipi_stp_decoder_init (const struct mipi_stp_decoder_config *config)
	Initialize the decoder.
int	mipi_stp_decoder_decode (const uint8_t *data, size_t len)
	Decode STPv2 stream.
void	mipi_stp_decoder_sync_loss (void)
	Indicate synchronization loss.

Detailed Description

Macro Definition Documentation

STP_DECODER_TYPE2STR

#define STP_DECODER_TYPE2STR

(

_type

)

#include <include/zephyr/debug/mipi_stp_decoder.h>

Value:

        _type == STP_DATA4 ? "DATA4" : (\
        _type == STP_DATA8 ? "DATA8" : (\
        _type == STP_DATA16 ? "DATA16" : (\
        _type == STP_DATA32 ? "DATA32" : (\
        _type == STP_DATA64 ? "DATA64" : (\
        _type == STP_DECODER_NULL ? "NULL" : (\
        _type == STP_DECODER_MAJOR ? "MAJOR" : (\
        _type == STP_DECODER_MERROR ? "MERROR" : (\
        _type == STP_DECODER_CHANNEL ? "CHANNEL" : (\
        _type == STP_DECODER_VERSION ? "VERSION" : (\
        _type == STP_DECODER_FREQ ? "FREQ" : (\
        _type == STP_DECODER_GERROR ? "GERROR" : (\
        _type == STP_DECODER_FLAG ? "FLAG" : (\
        _type == STP_DECODER_ASYNC ? "ASYNC" : (\
        "Unknown"))))))))))))))

Convert type to a string literal.

Parameters

_type

type

Returns

String literal.

Typedef Documentation

mipi_stp_decoder_cb

typedef void(* mipi_stp_decoder_cb) (enum mipi_stp_decoder_ctrl_type type, union mipi_stp_decoder_data data, uint64_t *ts, bool marked)

#include <include/zephyr/debug/mipi_stp_decoder.h>

Callback signature.

Callback is called whenever an element from STPv2 stream is decoded.

Note

Callback is called with interrupts locked.

Parameters

type	Type. See mipi_stp_decoder_ctrl_type.
data	Data. Data associated with a given type.
ts	Timestamp. Present if not NULL.
marked	Set to true if opcode was marked.

Enumeration Type Documentation

mipi_stp_decoder_ctrl_type

enum mipi_stp_decoder_ctrl_type

#include <include/zephyr/debug/mipi_stp_decoder.h>

STPv2 opcodes.

Enumerator
STP_DATA4
STP_DATA8
STP_DATA16
STP_DATA32
STP_DATA64
STP_DECODER_NULL
STP_DECODER_MAJOR
STP_DECODER_MERROR
STP_DECODER_CHANNEL
STP_DECODER_VERSION
STP_DECODER_FREQ
STP_DECODER_GERROR
STP_DECODER_FLAG
STP_DECODER_ASYNC
STP_DECODER_NOT_SUPPORTED

Function Documentation

mipi_stp_decoder_decode()

int mipi_stp_decoder_decode	(	const uint8_t *	data,
		size_t	len
	)

#include <include/zephyr/debug/mipi_stp_decoder.h>

Decode STPv2 stream.

Function decodes the stream and calls the callback for every decoded element.

Parameters

data	Data.
len	Data length.

Return values

0	On successful decoding.
negative	On failure.

mipi_stp_decoder_init()

int mipi_stp_decoder_init

(

const struct mipi_stp_decoder_config *

config

)

#include <include/zephyr/debug/mipi_stp_decoder.h>

Initialize the decoder.

Parameters

config

Configuration.

Return values

0	On successful initialization.
negative	On failure.

mipi_stp_decoder_sync_loss()

void mipi_stp_decoder_sync_loss

(

void

)

#include <include/zephyr/debug/mipi_stp_decoder.h>

Indicate synchronization loss.

If detected, then decoder starts to look for ASYNC marker and drops all data until ASYNC is found. Synchronization can be lost when there is data loss (e.g. due to overflow).