File content as of revision 72:895ca792c647:

#include "vz_protocol.h"


//#include "debug.h"
    
//extern DigitalOut led2;
//extern DigitalOut led4;

uint16_t pkg_ckserr = 0;
uint16_t pkg_cksok = 0;
    
uint8_t * __parse_vz_pkg__( int * ext, int * port, volatile uint8_t * type, uint8_t * cb_buffer ){
    uint8_t p_lsb, p_msb;
    uint8_t e_lsb, e_msb;
    
    if( cb_buffer == NULL ) return( NULL );
    
    /*
    if( cb_buffer[ 6 ] == __TELEMETRY__ ){
        if( debug_telemetry ){
            pc.printf("\n\r Original package\n\r");
            pc.printf("\n\r 1. ");
            uint8_t count = 2;
            for( register int i = 0; i < __CB_BUFFER_SIZE__; i++ ){
                if( i > 0 && !( i % 15 )  ) pc.printf("\n\r%2i. ", count++ );
                pc.printf("%3x ", cb_buffer[ i ] );
            }
            pc.printf("\n\r");
            
            if( tcp_session ) tcp_client.send_all( ( char *)cb_buffer, __CB_BUFFER_SIZE__ );
        }
    }
    */
    
    if( cb_buffer[ 6 ] == __FLOOD__ ){
        flood_counter++;
        static uint8_t flood_cnt = 0;
        static uint8_t first_run_flag = 0;
        static Timer t;
        if (first_run_flag == 0) {
            flood_cnt = cb_buffer[0];
            first_run_flag++;
            t.start();
        } else {
            if (cb_buffer[0] == 0x00){
                pc.printf("%d", t.read_us());
                if( tcp_session ){
                    char tmp[ 16 ];
                    sprintf( tmp, "%d", t.read_us() );
                    tcp_client.send_all( tmp, strlen( tmp ) );
                }
            }
            flood_cnt++;
            while (flood_cnt != cb_buffer[0]) {
                pc.printf("0");
                flood_cnt++;
                if( tcp_session ){
                    tcp_client.send_all( "0", strlen( "0" ) );
                }
            }
            int i;
            int ok = 1;
            uint8_t cmp;
            for (i=0, cmp=cb_buffer[0]; (i<300) && (ok==1); i++, cmp++) {
                if (i != 6) {
                    if (cb_buffer[i] != cmp) ok = 0;
                }
            }
            if( ok ){
                pc.printf("+");
                if( tcp_session ){
                    tcp_client.send_all( "+", strlen( "+" ) );
                }
            }else{
                pc.printf("%02x",cb_buffer[0] );
                pc.printf("#");
                pc.printf("\n\r");
                if( tcp_session ){
                    char tmp[ 16 ];
                    sprintf( tmp, "%02x#\n\r", cb_buffer[ 0 ] );
                    tcp_client.send_all( tmp, strlen( tmp ) );
                }
                for( int i = 0; i < 300 ; i++ ){
                    pc.printf("%x", cb_buffer[ i ]);
                    if( tcp_session ){
                        char tmp[ 16 ];
                        sprintf( tmp, "%x", cb_buffer[ i ] );
                        tcp_client.send_all( tmp, strlen( tmp ) );
                    }
                }
            }
        }
        return( NULL );
    }
    
    uint16_t cc = ( uint16_t )cb_buffer[ 4 ] << 8 | cb_buffer[ 5 ];
    
    if( cc != __checksum__( cb_buffer, __CB_BUFFER_SIZE__ ) ){
            /*pc.printf("\n\r CKS ERROR:  ");
            for (int i=0; i< 300; i++ ){ pc.printf("%x ", cb_buffer[i]); }
            pc.printf("\n\r");*/
            pkg_ckserr++;
            return( NULL );

    }else{
        pkg_cksok++;
        e_msb = cb_buffer[ 0 ];
        e_lsb = cb_buffer[ 1 ];
        *ext = e_msb << 8  | e_lsb;
    
        p_msb = cb_buffer[ 2 ];
        p_lsb = cb_buffer[ 3 ];
        *port = p_msb << 8 | p_lsb; 
    
        *type = cb_buffer[ 6 ];

        return( cb_buffer + __VZ_HEADER_OFFSET__ );    
    }

}
uint8_t * __build_cb_package__( int ext, int port, uint8_t type, char * cb_buffer, uint8_t seq_num, int length,  uint8_t * pkg ){
    pkg[ 0 ] = ( uint8_t )( ( ext & 0xFF00 ) >> 8 );                                                                                      
    pkg[ 1 ] = ( uint8_t )( ext & 0x00FF );                                                                                                                                                                                                                                 
    pkg[ 2 ] = ( uint8_t )( ( port & 0xFF00 ) >> 8 );                      
    pkg[ 3 ] = ( uint8_t )( port & 0x00FF );
                                                                                                                                        
    pkg[ 6 ] = type;
    
    size_t fill = 0x00;
    
    if( type == __AUDIO__ ){
        for( register int i = __VZ_HEADER_OFFSET__; i < length + __VZ_HEADER_OFFSET__; i++ )
            pkg[ i ] = ( uint8_t )cb_buffer[ i - __VZ_HEADER_OFFSET__ ];
        fill = length + __VZ_HEADER_OFFSET__;
    }else if( type == __INVITE__ ){
        pkg[ 7 ] = seq_num;
        //__print_clock__( pkg + 8 );
        pkg[ __TIMESLICE_PLACE__ ] = cb_buffer[ __TIMESLICE_PLACE__ ];
        fill = __TIMESLICE_PLACE__ + 1;
    }else if( type == __REGISTRY__ || type == __BOOT__ ){
        pkg[ 7 ] = seq_num;
        //__print_clock__( pkg + 8 );
        fill = __VZ_HEADER_OFFSET__ + __CLOCK_SYNC_SIZE__ + __SEQ_NUM_SIZE__;
    }else if( type == __CB_BYE__ ){
        pkg[ 7 ] = seq_num;
        //__print_clock__( pkg + 8 );
        pkg[ __TIMESLICE_PLACE__ ] = cb_buffer[ __TIMESLICE_PLACE__ ];
        fill = __TIMESLICE_PLACE__ + 1;
    }else if( type == __PROMPT__ ){
        //__print_clock__( pkg + 8 );
        xmemcpy((pkg+7), (uint8_t*)cb_buffer, 293);
        //FIXME isso forca qualquer cmd ter < 100 chars
        fill = 100;
    }else if( type == __TELEMETRY__ ){
        pkg[ 7 ] = seq_num;
        //__print_clock__( pkg + 8 );
        pkg[ __TIMESLICE_PLACE__ ] = cb_buffer[ __TIMESLICE_PLACE__ ];
        fill = __TIMESLICE_PLACE__ + 1;
    }else if( type == __BOOTLOADER_CBX__ ){
        pkg[ 7 ] = seq_num;
        //__print_clock__( pkg + 8 );
        fill = __VZ_HEADER_OFFSET__ + __CLOCK_SYNC_SIZE__ + __SEQ_NUM_SIZE__;
    }else{
        fill = __VZ_HEADER_OFFSET__;
    }
    
    for( register uint16_t i = fill; i < __CB_BUFFER_SIZE__; i++ ) pkg[ i ] = 0x00;
    
    uint16_t cc = __checksum__( pkg, 300 );
    pkg[ 4 ] =( uint8_t )( ( cc & 0xFF00 ) >> 8) ;
    pkg[ 5 ] =( uint8_t )( cc & 0x00FF );
    
    return pkg;
}

char * __build_eth__package__( void ){
    return( NULL );    
}

uint8_t * __read_cb_buffer__( uint8_t * dest, uint8_t * src ){    
    for( register int i = 0; i < __CB_BUFFER_SIZE__; i++ ) *dest++ = *src++;
    return( dest );
}

uint8_t * __read_eth_buffer__( uint8_t * dest, uint8_t * src ){
    
    for( register int i = 0; i < __ETH_BUFFER_SIZE__; i++ ) *dest++ = *src++;
    
    return( dest );
}

uint8_t * __write_cb_buffer__( uint8_t * dest, uint8_t * src ){    
    for( register int i = 0; i < __CB_BUFFER_SIZE__; i++ ) *dest++ = *src++;
    return( dest );
}

uint8_t * __write_eth_buffer__( uint8_t * dest, uint8_t * src ){
    for( register int i = 0; i < __ETH_BUFFER_SIZE__; i++ ) *dest++ = *src++;
    
    return( dest );
}

uint16_t __checksum__( uint8_t * buffer, size_t length ){
    if( !buffer ) return( 0 );
    uint16_t cc = 0x00;
    buffer[ 4 ] = buffer[ 5 ] = 0x5a;
    for( register int i = 0; i < length; i++ ){
        cc += buffer[ i ];
        if( cc & BIT15 ){
            cc <<= 1;
            cc |= BIT0;
        }else{ cc <<= BIT0; }
    }
    cc ^= 0xffff;
    return cc; 
}

void __print_clock__( uint8_t * buffer ){
    if( !buffer ) return;
    
    //int ntp_result = ntp.setTime( "200.192.232.8", 123, 3 );
    //led2 = !led2;
    struct tm  ts;
    //int ntp_result = ntp.setTime( "200.192.232.8" );
    //int ntp_result = ntp.setTime( "200.192.232.8", 123, 3 );
    //if( ntp_result == 0 ){
        time_t seconds;
        // seconds = time(NULL);
        time( &seconds );
        ts = *localtime( &seconds );
   //}
    
    int ano = ts.tm_year + 1900;
    int mes = ts.tm_mon + 1;
    int dia = ts.tm_mday; 
    int hora = ts.tm_hour - 3;
    int min = ts.tm_min; 
    int sec = ts.tm_sec; 
    
    buffer[ 0 ] = ano / 1000;
    ano -= buffer[ 0 ] * 1000;
    buffer[ 1 ] = ano / 100;
    ano -= buffer[ 1 ]* 100;
    buffer[ 2 ] = ano / 10;
    ano -= buffer[ 2 ] * 10;
    buffer[ 3 ] = ano;
    buffer[ 4 ] = mes / 10;
    buffer[ 5 ] = mes % 10;
    buffer[ 6 ] = dia / 10;
    buffer[ 7 ] = dia % 10;
    buffer[ 8 ] = hora / 10;
    buffer[ 9 ] = hora % 10;
    buffer[ 10 ] = min / 10;
    buffer[ 11 ] = min % 10;
    buffer[ 12 ] = sec / 10;
    buffer[ 13 ] = sec % 10;
    
    /* convertendo pro ascii do nro */
    for( register int i = 0; i < 14; i++ ) buffer[ i ] += 0x30;
    //led4 = !led4;
}