void
slip_init (slip_t *u, small_uint_t port, const char *name, int prio,
mem_pool_t *pool, unsigned int khz, unsigned long baud)
{
u->netif.interface = &slip_interface;
u->netif.name = name;
u->netif.arp = 0;
u->netif.mtu = 552;
u->netif.type = NETIF_SLIP;
u->netif.bps = baud;
u->pool = pool;
u->port = port;
u->khz = khz;
buf_queue_init (&u->inq, u->inqdata, sizeof (u->inqdata));
buf_queue_init (&u->outq, u->outqdata, sizeof (u->outqdata));
/* Setup baud rate generator. */
setup_baud_rate (u->port, u->khz, baud);
/* Create slip receive task. */
task_create (slip_receiver, u, "slipr", prio + 1,
u->rstack, sizeof (u->rstack));
#ifdef TRANSMIT_IRQ
/* Create slip transmit task. */
task_create (slip_transmitter, u, "slipt", prio,
u->tstack, sizeof (u->tstack));
#endif
}
gboolean
set_attributes (int fd, int baud_rate, MonoParity parity, int dataBits, MonoStopBits stopBits, MonoHandshake handshake)
{
struct termios newtio;
if (tcgetattr (fd, &newtio) == -1)
return FALSE;
newtio.c_cflag |= (CLOCAL | CREAD);
newtio.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHOK | ECHONL | ISIG | IEXTEN );
newtio.c_oflag &= ~(OPOST);
newtio.c_iflag = IGNBRK;
/* setup baudrate */
baud_rate = setup_baud_rate (baud_rate);
/* char lenght */
newtio.c_cflag &= ~CSIZE;
switch (dataBits)
{
case 5:
newtio.c_cflag |= CS5;
break;
case 6:
newtio.c_cflag |= CS6;
break;
case 7:
newtio.c_cflag |= CS7;
break;
case 8:
default:
newtio.c_cflag |= CS8;
break;
}
/* stopbits */
switch (stopBits)
{
case NoneStopBits:
/* Unhandled */
break;
case One: /* One */
/* do nothing, the default is one stop bit */
newtio.c_cflag &= ~CSTOPB;
break;
case Two: /* Two */
newtio.c_cflag |= CSTOPB;
break;
case OnePointFive: /* OnePointFive */
/* XXX unhandled */
break;
}
/* parity */
newtio.c_iflag &= ~(INPCK | ISTRIP );
switch (parity)
{
case NoneParity: /* None */
newtio.c_cflag &= ~(PARENB | PARODD);
break;
case Odd: /* Odd */
newtio.c_cflag |= PARENB | PARODD;
break;
case Even: /* Even */
newtio.c_cflag &= ~(PARODD);
newtio.c_cflag |= (PARENB);
break;
case Mark: /* Mark */
/* XXX unhandled */
break;
case Space: /* Space */
/* XXX unhandled */
break;
}
newtio.c_iflag &= ~(IXOFF | IXON);
#ifdef CRTSCTS
newtio.c_cflag &= ~CRTSCTS;
#endif /* def CRTSCTS */
switch (handshake)
{
case NoneHandshake: /* None */
/* do nothing */
break;
case RequestToSend: /* RequestToSend (RTS) */
#ifdef CRTSCTS
newtio.c_cflag |= CRTSCTS;
#endif /* def CRTSCTS */
break;
case RequestToSendXOnXOff: /* RequestToSendXOnXOff (RTS + XON/XOFF) */
#ifdef CRTSCTS
newtio.c_cflag |= CRTSCTS;
#endif /* def CRTSCTS */
/* fall through */
case XOnXOff: /* XOnXOff */
newtio.c_iflag |= IXOFF | IXON;
break;
}
if (cfsetospeed (&newtio, baud_rate) < 0 || cfsetispeed (&newtio, baud_rate) < 0 ||
tcsetattr (fd, TCSANOW, &newtio) < 0)
{
return FALSE;
}
else
{
return TRUE;
}
}
gboolean
is_baud_rate_legal (int baud_rate)
{
return setup_baud_rate (baud_rate) != -1;
}
gboolean
set_attributes (int fd, int baud_rate, MonoParity parity, int dataBits, MonoStopBits stopBits, MonoHandshake handshake)
{
struct termios newtio;
gboolean custom_baud_rate = FALSE;
if (tcgetattr (fd, &newtio) == -1)
return FALSE;
newtio.c_cflag |= (CLOCAL | CREAD);
newtio.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHOK | ECHONL | ISIG | IEXTEN );
newtio.c_oflag &= ~(OPOST);
newtio.c_iflag = IGNBRK;
/* setup baudrate */
baud_rate = setup_baud_rate (baud_rate, &custom_baud_rate);
/* char lenght */
newtio.c_cflag &= ~CSIZE;
switch (dataBits)
{
case 5:
newtio.c_cflag |= CS5;
break;
case 6:
newtio.c_cflag |= CS6;
break;
case 7:
newtio.c_cflag |= CS7;
break;
case 8:
default:
newtio.c_cflag |= CS8;
break;
}
/* stopbits */
switch (stopBits)
{
case NoneStopBits:
/* Unhandled */
break;
case One: /* One */
/* do nothing, the default is one stop bit */
newtio.c_cflag &= ~CSTOPB;
break;
case Two: /* Two */
newtio.c_cflag |= CSTOPB;
break;
case OnePointFive: /* OnePointFive */
/* XXX unhandled */
break;
}
/* parity */
newtio.c_iflag &= ~(INPCK | ISTRIP );
switch (parity)
{
case NoneParity: /* None */
newtio.c_cflag &= ~(PARENB | PARODD);
break;
case Odd: /* Odd */
newtio.c_cflag |= PARENB | PARODD;
break;
case Even: /* Even */
newtio.c_cflag &= ~(PARODD);
newtio.c_cflag |= (PARENB);
break;
case Mark: /* Mark */
/* XXX unhandled */
break;
case Space: /* Space */
/* XXX unhandled */
break;
}
newtio.c_iflag &= ~(IXOFF | IXON);
#ifdef CRTSCTS
newtio.c_cflag &= ~CRTSCTS;
#endif /* def CRTSCTS */
switch (handshake)
{
case NoneHandshake: /* None */
/* do nothing */
break;
case RequestToSend: /* RequestToSend (RTS) */
#ifdef CRTSCTS
newtio.c_cflag |= CRTSCTS;
#endif /* def CRTSCTS */
break;
case RequestToSendXOnXOff: /* RequestToSendXOnXOff (RTS + XON/XOFF) */
#ifdef CRTSCTS
newtio.c_cflag |= CRTSCTS;
#endif /* def CRTSCTS */
/* fall through */
case XOnXOff: /* XOnXOff */
newtio.c_iflag |= IXOFF | IXON;
break;
}
if (custom_baud_rate == FALSE) {
if (cfsetospeed (&newtio, baud_rate) < 0 || cfsetispeed (&newtio, baud_rate) < 0)
return FALSE;
} else {
#if __linux__ || (defined(__APPLE__) && !defined(HOST_IOS))
/* On Linux to set a custom baud rate, we must set the
* "standard" baud_rate to 38400. On Apple we set it purely
* so that tcsetattr has something to use (and report back later), but
* the Apple specific API is still opaque to these APIs, see:
* https://developer.apple.com/library/mac/samplecode/SerialPortSample/Listings/SerialPortSample_SerialPortSample_c.html#//apple_ref/doc/uid/DTS10000454-SerialPortSample_SerialPortSample_c-DontLinkElementID_4
*/
if (cfsetospeed (&newtio, B38400) < 0 || cfsetispeed (&newtio, B38400) < 0)
return FALSE;
#endif
}
if (tcsetattr (fd, TCSANOW, &newtio) < 0)
return FALSE;
if (custom_baud_rate == TRUE){
#if defined(HAVE_LINUX_SERIAL_H)
struct serial_struct ser;
if (ioctl (fd, TIOCGSERIAL, &ser) < 0)
{
return FALSE;
}
ser.custom_divisor = ser.baud_base / baud_rate;
ser.flags &= ~ASYNC_SPD_MASK;
ser.flags |= ASYNC_SPD_CUST;
if (ioctl (fd, TIOCSSERIAL, &ser) < 0)
{
return FALSE;
}
#elif defined(__APPLE__) && !defined(HOST_IOS)
speed_t speed = baud_rate;
if (ioctl(fd, IOSSIOSPEED, &speed) == -1)
return FALSE;
#else
/* Don't know how to set custom baud rate on this platform. */
return FALSE;
#endif
}
return TRUE;
}
gboolean
is_baud_rate_legal (int baud_rate)
{
gboolean ignore = FALSE;
return setup_baud_rate (baud_rate, &ignore) != -1;
}