![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
Modularizando o src
Dependencies: EALib EthernetInterface_vz mbed-rtos mbed
Fork of header_main_colinas_V0-20-09-14 by
vz_protocol.cpp
- Committer:
- klauss
- Date:
- 2015-04-30
- Revision:
- 119:ee6a53069455
- Parent:
- 117:e9facba9db27
- Child:
- 121:ee02790d00b7
File content as of revision 119:ee6a53069455:
#include "vz_protocol.h" uint32_t pkg_ckserr = 0; uint32_t pkg_zero = 0; uint32_t pkg_cksok = 0; int begin = 0; int end = 0; int init_ranges( void ){ FILE * begin_ext = fopen( "/qspi/minext.txt", "r" ); if( begin_ext == NULL ){ if( debug_out_of_range ) debug_msg("Failed to open /qspi/minext.txt" ); begin = MIN_EXT; }else{ char inner_tmp[ 20 ]; if( fread( (void *)inner_tmp, 1, 20, begin_ext ) > 0 ){ begin = atoi( inner_tmp ); if( debug_out_of_range ) debug_msg("Ext Min %d", begin ); }else{ if( debug_out_of_range ) debug_msg("Failed to read /qspi/minext.txt" ); begin = MIN_EXT; } } fclose( begin_ext ); FILE * end_ext = fopen( "/qspi/maxext.txt", "r" ); if( end_ext == NULL ){ if( debug_out_of_range ) debug_msg("Failed to open /qspi/maxext.txt" ); end = MAX_EXT; }else{ char inner_tmp[ 20 ]; if( fread( (void *)inner_tmp, 1, 20, end_ext ) > 0 ){ end = atoi( inner_tmp ); if( debug_out_of_range ) debug_msg("Ext Min %d", end ); }else{ if( debug_out_of_range ) debug_msg("Failed to read /qspi/maxext.txt" ); begin = MAX_EXT; } } fclose( end_ext ); return ( 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( ( ext && port && type && cb_buffer ) == NULL ) return( NULL ); //tratamento dos pacotes do tipo flood logo na chegada { 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){ if( debug_uart3 ) pc.printf("%d", t.read_us()); if( tcp_session && !udp_query ){ char tmp[ 16 ]; sprintf( tmp, "%d", t.read_us() ); tcp_client.send_all( tmp, strlen( tmp ) ); } } flood_cnt++; while (flood_cnt != cb_buffer[0]) { if( debug_uart3 ) pc.printf("0"); flood_cnt++; if( tcp_session && !udp_query ){ 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 ){ if( debug_uart3 ) pc.printf("+"); if( tcp_session && !udp_query ){ tcp_client.send_all( "+", strlen( "+" ) ); } }else{ if( debug_uart3 ) pc.printf("%02x",cb_buffer[0] ); if( debug_uart3 ) pc.printf("#"); if( debug_uart3 ) pc.printf("\n\r"); if( tcp_session && !udp_query ){ 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++ ){ if( debug_uart3 ) pc.printf("%x", cb_buffer[ i ]); if( tcp_session && !udp_query ){ char tmp[ 16 ]; sprintf( tmp, "%x", cb_buffer[ i ] ); tcp_client.send_all( tmp, strlen( tmp ) ); } } } } return( NULL ); } }//fim tratamento do flood uint16_t cc = ( uint16_t )cb_buffer[ 4 ] << 8 | cb_buffer[ 5 ]; uint16_t cc_calculated = vz_checksum( cb_buffer, CB_BUFFER_SIZE ); if( cc != cc_calculated ){ if( debug_cks_err ) send_msg( "Received PKG, but -- CKS ERROR: %d ( %d )", cc_calculated, cc ); if( cc_calculated == 30975 && cc == 0 ){ pkg_zero++; }else{ pkg_ckserr++; } return( NULL ); }else{ pkg_cksok++; e_msb = cb_buffer[ 0 ]; e_lsb = cb_buffer[ 1 ]; *ext = e_msb << 8 | e_lsb; //restriçao de controle para cbx malucos if( *ext < begin || *ext > end ){ if( debug_out_of_range ) send_msg("Trying from %d", *ext ); out_of_range++; return( NULL ); } p_msb = cb_buffer[ 2 ]; p_lsb = cb_buffer[ 3 ]; *port = p_msb << 8 | p_lsb; if( debug_port_match ) if( *ext == *port ) debug_msg("%u:%u", *ext, *port ); *type = cb_buffer[ 6 ]; if( ( ( *port < BASE_PORT ) || ( *port >= ( BASE_PORT + MAX_CB_IN_A_BRANCH ) ) && ( *type == TELEMETRY ) ) ) return NULL; 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 ){ //checa se o fuffer de src e dst dos dados estao alocados if( ( cb_buffer == NULL ) || ( pkg == NULL ) ) return NULL; //apaga as posicoes de memoria onde serah montado o pacote for( register int i = 0; i < CB_BUFFER_SIZE; i++ ) pkg[ i ] = 0; //coloca ramal ( MSB ), ramal ( LSB ), porta ( MSB ), porta ( LSB ) e tipo nas posicoes destino 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; //preenche os dados de acordo com o tipo do pacote transmitido size_t fill = VZ_HEADER_OFFSET; switch( type ) { case 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; break; } case INVITE :{ pkg[ 7 ] = seq_num; print_clock( pkg + 8 ); pkg[ TIMESLICE_PLACE ] = cb_buffer[ TIMESLICE_PLACE ]; fill = TIMESLICE_PLACE + 1; break; } case REGISTRY :{ pkg[ 7 ] = seq_num; print_clock( pkg + 8 ); fill = VZ_HEADER_OFFSET + CLOCK_SYNC_SIZE + SEQ_NUM_SIZE; break; } case BOOT :{ pkg[ 7 ] = seq_num; print_clock( pkg + 8 ); fill = VZ_HEADER_OFFSET + CLOCK_SYNC_SIZE + SEQ_NUM_SIZE; break; } case CB_BYE :{ pkg[ 7 ] = seq_num; print_clock( pkg + 8 ); pkg[ TIMESLICE_PLACE ] = cb_buffer[ TIMESLICE_PLACE ]; fill = TIMESLICE_PLACE + 1; break; } case PROMPT :{ strcpy( ( char * )( pkg + VZ_HEADER_OFFSET ), cb_buffer ); fill = strlen( cb_buffer ) + VZ_HEADER_OFFSET; break; } case TELEMETRY :{ pkg[ 7 ] = seq_num; print_clock( pkg + 8 ); //FIXME a header manda pacotes de tele pro cbx ? pkg[ TIMESLICE_PLACE ] = cb_buffer[ TIMESLICE_PLACE ]; fill = TIMESLICE_PLACE + 1; break; } case BOOTLOADER_CBX :{ xmemcpy((pkg + 7),(uint8_t *)cb_buffer,length); fill = VZ_HEADER_OFFSET + length; break; } }//fim switch //preenche o final do pacote com 0 for( register uint16_t i = fill; i < CB_BUFFER_SIZE; i++ ) pkg[ i ] = 0x00; //colocando o terminador de pacotes estabelecido pelo protocolo pkg[ CB_BUFFER_SIZE - 4 ] = 0x5a; pkg[ CB_BUFFER_SIZE - 3 ] = 0x56; pkg[ CB_BUFFER_SIZE - 2 ] = 0x5a; pkg[ CB_BUFFER_SIZE - 1 ] = 0xe1; //calcula e preenche o checksum uint16_t cc = vz_checksum( pkg, CB_BUFFER_SIZE ); pkg[ 4 ] =( uint8_t )( ( cc & 0xFF00 ) >> 8) ; pkg[ 5 ] =( uint8_t )( cc & 0x00FF ); //enable/disable de exibicao de pacotes prontos para envio if( debug_show_cpld ) { char str[ 1024 ]; strcpy( str, "TX :: \n\r " ); for( register uint16_t i = 0; i < CB_BUFFER_SIZE; i++ ) { char tmp[ 16 ]; strcat( str, itoa( pkg[ i ], tmp, 16 ) ); if( ( i != 0 ) && !( ( i + 1 ) % 50 ) ) strcat( str, "\n\r " ); else strcat( str, " " ); } send_msg( "%s", str ); } //retorna o ultimo paramentro recebido com o pacote montado. return pkg; } uint16_t vz_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; }