//open serial port ( called on head of connection_in group from com_open )
GOOD_OR_BAD serial_open(struct connection_in *connection)
{
struct port_in * pin = connection->pown ;
FILE_DESCRIPTOR_OR_ERROR fd = open( DEVICENAME(connection), O_RDWR | O_NONBLOCK | O_NOCTTY) ;
pin->file_descriptor = fd ;
if ( FILE_DESCRIPTOR_NOT_VALID( fd ) ) {
// state doesn't change
ERROR_DEFAULT("Cannot open port: %s Permissions problem?", SAFESTRING(DEVICENAME(connection)));
return gbBAD;
}
if ( pin->state == cs_virgin ) {
// valgrind warns about uninitialized memory in tcsetattr(), so clear all.
memset( &(pin->dev.serial.oldSerialTio), 0, sizeof(struct termios));
if ((tcgetattr( fd, &(pin->dev.serial.oldSerialTio) ) < 0)) {
ERROR_CONNECT("Cannot get old port attributes: %s", SAFESTRING(DEVICENAME(connection)));
// proceed anyway
}
pin->state = cs_deflowered ;
}
return serial_change( connection ) ;
}
/* Device-specific functions */
GOOD_OR_BAD ENET_monitor_detect(struct port_in *pin)
{
struct connection_in * in = pin->first ;
struct address_pair ap ;
pthread_t thread ;
/* init_data has form "scan" or "scan:15" (15 seconds) */
Parse_Address( pin->init_data, &ap ) ;
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
switch ( ap.entries ) {
case 0:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
case 1:
switch( ap.first.type ) {
case address_numeric:
in->master.enet_monitor.enet_scan_interval = ap.first.number ;
break ;
default:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
}
break ;
case 2:
switch( ap.second.type ) {
case address_numeric:
in->master.enet_monitor.enet_scan_interval = ap.second.number ;
break ;
default:
in->master.enet_monitor.enet_scan_interval = DEFAULT_ENET_SCAN_INTERVAL ;
break ;
}
break ;
}
Free_Address( &ap ) ;
pin->type = ct_none ;
// Device name will not be init_data copy
SAFEFREE(DEVICENAME(in)) ;
DEVICENAME(in) = owstrdup("ENET bus monitor") ;
pin->file_descriptor = FILE_DESCRIPTOR_BAD;
in->iroutines.detect = ENET_monitor_detect;
in->Adapter = adapter_enet_monitor;
in->iroutines.reset = NO_RESET_ROUTINE;
in->iroutines.next_both = NO_NEXT_BOTH_ROUTINE;
in->iroutines.PowerByte = NO_POWERBYTE_ROUTINE;
in->iroutines.ProgramPulse = NO_PROGRAMPULSE_ROUTINE;
in->iroutines.sendback_data = NO_SENDBACKDATA_ROUTINE;
in->iroutines.sendback_bits = NO_SENDBACKBITS_ROUTINE;
in->iroutines.select = NO_SELECT_ROUTINE;
in->iroutines.select_and_sendback = NO_SELECTANDSENDBACK_ROUTINE ;
in->iroutines.set_config = NO_SET_CONFIG_ROUTINE;
in->iroutines.get_config = NO_GET_CONFIG_ROUTINE;
in->iroutines.reconnect = NO_RECONNECT_ROUTINE;
in->iroutines.close = ENET_monitor_close;
in->iroutines.verify = NO_VERIFY_ROUTINE ;
in->iroutines.flags = ADAP_FLAG_sham;
in->adapter_name = "ENET scan";
pin->busmode = bus_enet_monitor ; // repeat since can come via usb=scan
Init_Pipe( in->master.enet_monitor.shutdown_pipe ) ;
if ( pipe( in->master.enet_monitor.shutdown_pipe ) != 0 ) {
ERROR_DEFAULT("Cannot allocate a shutdown pipe. The program shutdown may be messy");
Init_Pipe( in->master.enet_monitor.shutdown_pipe ) ;
}
if ( BAD( ENET_monitor_in_use(pin) ) ) {
LEVEL_CONNECT("Second call for ENET scanning ignored") ;
return gbBAD ;
}
if ( pthread_create(&thread, DEFAULT_THREAD_ATTR, ENET_monitor_loop, (void *) in) != 0 ) {
ERROR_CALL("Cannot create the ENET monitoring program thread");
return gbBAD ;
}
return gbGOOD ;
}
