int
xf86SetSerialSpeed(int fd, int speed)
{
struct termios t;
int baud, r;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
SYSCALL(tcgetattr(fd, &t));
if ((baud = GetBaud(speed))) {
cfsetispeed(&t, baud);
cfsetospeed(&t, baud);
}
else {
xf86Msg(X_ERROR, "Invalid Option BaudRate value: %d\n", speed);
return -1;
}
SYSCALL(r = tcsetattr(fd, TCSANOW, &t));
return r;
}
int
xf86SetSerial(int fd, XF86OptionPtr options)
{
struct termios t;
int val;
const char *s;
int baud, r;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
SYSCALL(tcgetattr(fd, &t));
if ((val = xf86SetIntOption(options, "BaudRate", 0))) {
if ((baud = GetBaud(val))) {
cfsetispeed(&t, baud);
cfsetospeed(&t, baud);
}
else {
xf86Msg(X_ERROR, "Invalid Option BaudRate value: %d\n", val);
return -1;
}
}
if ((val = xf86SetIntOption(options, "StopBits", 0))) {
switch (val) {
case 1:
t.c_cflag &= ~(CSTOPB);
break;
case 2:
t.c_cflag |= CSTOPB;
break;
default:
xf86Msg(X_ERROR, "Invalid Option StopBits value: %d\n", val);
return -1;
break;
}
}
if ((val = xf86SetIntOption(options, "DataBits", 0))) {
switch (val) {
case 5:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS5;
break;
case 6:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS6;
break;
case 7:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS7;
break;
case 8:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS8;
break;
default:
xf86Msg(X_ERROR, "Invalid Option DataBits value: %d\n", val);
return -1;
break;
}
}
if ((s = xf86SetStrOption(options, "Parity", NULL))) {
if (xf86NameCmp(s, "Odd") == 0) {
t.c_cflag |= PARENB | PARODD;
}
else if (xf86NameCmp(s, "Even") == 0) {
t.c_cflag |= PARENB;
t.c_cflag &= ~(PARODD);
}
else if (xf86NameCmp(s, "None") == 0) {
t.c_cflag &= ~(PARENB);
}
else {
xf86Msg(X_ERROR, "Invalid Option Parity value: %s\n", s);
return -1;
}
}
if ((val = xf86SetIntOption(options, "Vmin", -1)) != -1) {
t.c_cc[VMIN] = val;
}
if ((val = xf86SetIntOption(options, "Vtime", -1)) != -1) {
t.c_cc[VTIME] = val;
}
if ((s = xf86SetStrOption(options, "FlowControl", NULL))) {
xf86MarkOptionUsedByName(options, "FlowControl");
if (xf86NameCmp(s, "Xoff") == 0) {
t.c_iflag |= IXOFF;
}
else if (xf86NameCmp(s, "Xon") == 0) {
t.c_iflag |= IXON;
}
else if (xf86NameCmp(s, "XonXoff") == 0) {
t.c_iflag |= IXON | IXOFF;
}
else if (xf86NameCmp(s, "None") == 0) {
t.c_iflag &= ~(IXON | IXOFF);
}
else {
xf86Msg(X_ERROR, "Invalid Option FlowControl value: %s\n", s);
return -1;
}
}
if ((xf86SetBoolOption(options, "ClearDTR", FALSE))) {
#ifdef CLEARDTR_SUPPORT
#if defined(TIOCMBIC)
val = TIOCM_DTR;
SYSCALL(ioctl(fd, TIOCMBIC, &val));
#else
SYSCALL(ioctl(fd, TIOCCDTR, NULL));
#endif
#else
xf86Msg(X_WARNING, "Option ClearDTR not supported on this OS\n");
return -1;
#endif
xf86MarkOptionUsedByName(options, "ClearDTR");
}
if ((xf86SetBoolOption(options, "ClearRTS", FALSE))) {
xf86Msg(X_WARNING, "Option ClearRTS not supported on this OS\n");
return -1;
xf86MarkOptionUsedByName(options, "ClearRTS");
}
SYSCALL(r = tcsetattr(fd, TCSANOW, &t));
return r;
}
/***************************************************************************
Function : IntUartSetAttributes
Description : This provides the hardware-dependent portion of tcsetattr().
value and sets it. At the moment this just sets the baud rate.
Note: The highest baudrate is 115200 as this stays within
an error of +/- 5% at 25MHz processor clock
***************************************************************************/
static int
IntUartSetAttributes(int minor, const struct termios *t)
{
/* set default index values */
int baud = (int)19200;
int databits = (int)MCF5282_UART_UMR1_BC_8;
int parity = (int)MCF5282_UART_UMR1_PM_NONE;
int stopbits = (int)MCF5282_UART_UMR2_STOP_BITS_1;
int hwflow = (int)0;
struct IntUartInfoStruct *info = &IntUartInfo[minor];
/* check to see if input is valid */
if ( t != (const struct termios *)0 )
{
/* determine baud rate index */
baud = GetBaud( t->c_cflag & CBAUD );
/* determine data bits */
switch ( t->c_cflag & CSIZE )
{
case CS5:
databits = (int)MCF5282_UART_UMR1_BC_5;
break;
case CS6:
databits = (int)MCF5282_UART_UMR1_BC_6;
break;
case CS7:
databits = (int)MCF5282_UART_UMR1_BC_7;
break;
case CS8:
databits = (int)MCF5282_UART_UMR1_BC_8;
break;
}
/* determine if parity is enabled */
if ( t->c_cflag & PARENB )
{
if ( t->c_cflag & PARODD )
{
/* odd parity */
parity = (int)MCF5282_UART_UMR1_PM_ODD;
}
else
{
/* even parity */
parity = (int)MCF5282_UART_UMR1_PM_EVEN;
}
}
/* determine stop bits */
if ( t->c_cflag & CSTOPB )
{
/* two stop bits */
stopbits = (int)MCF5282_UART_UMR2_STOP_BITS_2;
}
/* check to see if hardware flow control */
if ( t->c_cflag & CRTSCTS )
{
hwflow = 1;
}
}
/* check to see if values have changed */
if ( ( baud != info->baud ) ||
( databits != info->databits ) ||
( parity != info->parity ) ||
( stopbits != info->stopbits ) ||
( hwflow != info->hwflow ) )
{
/* call function to set values */
IntUartSet(minor, baud, databits, parity, stopbits, hwflow);
}
return( RTEMS_SUCCESSFUL );
}
