RS232_LIB unsigned int
rs232_open(struct rs232_port_t *p)
{
wchar_t *wname = a2w(fix_device_name(p->dev));
struct rs232_windows_t *wx = p->pt;
DBG("p=%p p->pt=%p name='%s' fix='%s'\n",
(void *)p, p->pt, p->dev, fix_device_name(p->dev));
if (wname == NULL)
return RS232_ERR_UNKNOWN;
wx->fd = CreateFileW(wname, GENERIC_READ | GENERIC_WRITE, // Force Unicode version of CreateFile() -hg
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, NULL);
if (wname)
free(wname);
if (wx->fd == INVALID_HANDLE_VALUE) {
DBG("CreateFile() %s\n", last_error());
return RS232_ERR_OPEN;
}
p->status = RS232_PORT_OPEN;
rs232_flush(p);
GET_PORT_STATE(wx->fd, &wx->old_dcb);
GET_PORT_TIMEOUTS(wx->fd, &wx->old_tm);
port_timeout(p, wx->r_timeout, wx->w_timeout);
port_buffers(p, wx->r_buffer, wx->w_buffer);
rs232_set_baud(p, p->baud);
rs232_set_data(p, p->data);
rs232_set_parity(p, p->parity);
rs232_set_stop(p, p->stop);
rs232_set_flow(p, p->flow);
return RS232_ERR_NOERROR;
}
RS232_LIB unsigned int
rs232_set_data(struct rs232_port_t *p, enum rs232_data_e data)
{
DCB pdcb;
struct rs232_windows_t *wx = p->pt;
DBG("p=%p p->pt=%p data=%d (%s data bits)\n",
(void *)p, p->pt, data, rs232_strdata(data));
if (!rs232_port_open(p))
return RS232_ERR_PORT_CLOSED;
GET_PORT_STATE(wx->fd, &pdcb);
switch (data) {
case RS232_DATA_5:
pdcb.ByteSize = 5;
break;
case RS232_DATA_6:
pdcb.ByteSize = 6;
break;
case RS232_DATA_7:
pdcb.ByteSize = 7;
break;
case RS232_DATA_8:
pdcb.ByteSize = 8;
break;
default:
return RS232_ERR_UNKNOWN;
}
SET_PORT_STATE(wx->fd, &pdcb);
p->data = data;
return RS232_ERR_NOERROR;
}