Modularizando o src
Dependencies: EALib EthernetInterface_vz mbed-rtos mbed
Fork of header_main_colinas_V0-20-09-14 by
Diff: vz_protocol.cpp
- Revision:
- 0:4d17cd9c8f9d
- Child:
- 4:de46f0d9b14d
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vz_protocol.cpp Tue Sep 09 20:01:24 2014 +0000 @@ -0,0 +1,175 @@ +#include "vz_protocol.h" + +extern DigitalOut led2; +extern DigitalOut led3; + +uint8_t * __parse_cb_buffer__( int * ext, int * port, volatile uint8_t * type, uint8_t * cb_buffer ){ + /** + * parse and split vz package, + * | E | E | P | P | C | C | T | [ Seq_num | Audio ] | 14[ Clock | Audio ] | [ TS | Audio ] | ... | + * E = Ext = Ramal + * P = Port = Porta + * C = Checksum + * T = Type = Tipo + * Seq_num = Sequence Number = Numero de sequencia + * Clock = 14 bytes to sync + * ... = demais __CB_BUFFER_SIZE__ - __VZ_HEADER_OFFSET__ bytes + */ + uint8_t p_lsb, p_msb; + uint8_t e_lsb, e_msb; + + if( cb_buffer == NULL ) return( NULL ); + + uint16_t cc = ( uint16_t )cb_buffer[ 4 ] << 8 | cb_buffer[ 5 ]; + + /* + UDPSocket debug; + Endpoint debug_server; + char debug_msg[ 1024 ]; + + debug_server.set_address( "192.168.120.180", 9897 ); + debug.bind( 8182 ); + debug.init(); + + //if( cc != __checksum__( cb_buffer + __CHECKSUM_OFFSET__, + // __CB_BUFFER_SIZE__ - __CHECKSUM_OFFSET__ ) ){ + + sprintf( debug_msg, " -- cc :: %x :: __checksum %x -- bit[4] %x :: bit[5] %x", cc, __checksum__( cb_buffer, __CB_BUFFER_SIZE__ ), cb_buffer[ 4 ], cb_buffer[ 5 ] ); + debug.sendTo( debug_server, debug_msg, strlen( debug_msg ) ); + debug.sendTo( debug_server, debug_msg, strlen( debug_msg ) ); + */ + if( cc != __checksum__( cb_buffer, __CB_BUFFER_SIZE__ ) ){ + return( NULL ); + }else{ + 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__; + }if( type == __CB_BYE__ ){ + pkg[ 7 ] = seq_num; + //__print_clock__( pkg + 8 ); + pkg[ __TIMESLICE_PLACE__ ] = cb_buffer[ __TIMESLICE_PLACE__ ]; + fill = __TIMESLICE_PLACE__ + 1; + } + + for( register int i = fill; i < __CB_BUFFER_SIZE__; i++ ) pkg[ i ] = 0x00; + led2 = !led2; + + 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 ){ + 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 ){ + NTPClient ntp; + ntp.setTime( "200.192.232.8", 123, 3 ); + time_t seconds; + // seconds = time(NULL); + struct tm ts; + 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; +} \ No newline at end of file