neurosky/header/ThinkGearStreamParser.h

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/*
 * @(#)ThinkGearStreamParser.h    2.0    Mar 04, 2008
 *
 * Copyright (c) 2008 NeuroSky, Inc. All Rights Reserved
 * NEUROSKY PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

/* Ensure this header is only included once */
#ifndef THINKGEAR_STREAM_PARSER_H_
#define THINKGEAR_STREAM_PARSER_H_

/* Include all external libraries required by this header */
#include <stdlib.h>

/* Disable name-mangling when compiling as C++ */
#ifdef __cplusplus
extern "C" {
#endif

/* Parser types */
#define PARSER_TYPE_NULL       0x00
#define PARSER_TYPE_PACKETS    0x01    /* Stream bytes as ThinkGear Packets */
#define PARSER_TYPE_2BYTERAW   0x02    /* Stream bytes as 2-byte raw data */

/* Data CODE definitions */
#define PARSER_CODE_BATTERY            0x01
#define PARSER_CODE_POOR_QUALITY       0x02
#define PARSER_CODE_ATTENTION          0x04
#define PARSER_CODE_MEDITATION         0x05
#define PARSER_CODE_8BITRAW_SIGNAL     0x06
#define PARSER_CODE_RAW_MARKER         0x07

#define PARSER_CODE_RAW_SIGNAL         0x80
#define PARSER_CODE_EEG_POWERS         0x81
#define PARSER_CODE_ASIC_EEG_POWER_INT 0x83

typedef struct _ThinkGearStreamParser {

    unsigned char   type;
    unsigned char   state;

    unsigned char   lastByte;

    unsigned char   payloadLength;
    unsigned char   payloadBytesReceived;
    unsigned char   payload[256];
    unsigned char   payloadSum;
    unsigned char   chksum;

    void (*handleDataValue)( unsigned char extendedCodeLevel,
                             unsigned char code, unsigned char numBytes,
                             const unsigned char *value, void *customData );
    void  *customData;

} ThinkGearStreamParser;

int
THINKGEAR_initParser( ThinkGearStreamParser *parser, unsigned char parserType,
                      void (*handleDataValueFunc)(
                          unsigned char extendedCodeLevel,
                          unsigned char code, unsigned char numBytes,
                          const unsigned char *value, void *customData),
                      void *customData );

void
exampleHandleDataValueFunc( unsigned char extendedCodeLevel,
                            unsigned char code,
                            unsigned char numBytes,
                            const unsigned char *value,
                            void *customData );


int
THINKGEAR_parseByte( ThinkGearStreamParser *parser, unsigned char byte );


#ifdef __cplusplus
}  /* extern "C" */
#endif

#endif /* THINKGEAR_STREAM_DECODER_H_ */

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