static int dz_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct dz_serial *info = (struct dz_serial *) tty->driver_data;
int retval;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, HZ / 4); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg * (HZ / 10) : HZ / 4);
return 0;
case TIOCGSOFTCAR:
return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *) arg);
case TIOCSSOFTCAR:
if (get_user(arg, (unsigned long *) arg))
return -EFAULT;
tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
return 0;
case TIOCGSERIAL:
return get_serial_info(info, (struct serial_struct *) arg);
case TIOCSSERIAL:
return set_serial_info(info, (struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
return get_lsr_info(info, (unsigned int *) arg);
case TIOCSERGSTRUCT:
return copy_to_user((struct dz_serial *) arg, info,
sizeof(struct dz_serial)) ? -EFAULT : 0;
default:
return -ENOIOCTLCMD;
}
return 0;
}
static int rs_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct m68k_serial * info = (struct m68k_serial *)tty->driver_data;
int retval;
if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
return -ENODEV;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, 250); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(100) : 250);
return 0;
case TIOCGSERIAL:
return get_serial_info(info,
(struct serial_struct *) arg);
case TIOCSSERIAL:
return set_serial_info(info,
(struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
return get_lsr_info(info, (unsigned int *) arg);
case TIOCSERGSTRUCT:
if (copy_to_user((struct m68k_serial *) arg,
info, sizeof(struct m68k_serial)))
return -EFAULT;
return 0;
default:
return -ENOIOCTLCMD;
}
return 0;
}
/**
* Send_Break
*
* Send break from UART TX port, for wValue (msec) duration.
* wValue
* 0xFFFF: continuous break
* 0x0000: stop break
*/
static void cdc_Send_Break(){
if ((ep0_setup.bmRequestType == OUT_CL_INTERFACE)
&& (ep0_setup.wLength.i == 0) ){
send_break(ep0_setup.wValue.i);
ep0_request_completed = TRUE;
}
}
void tms9902_device::initiate_transmit()
{
if (m_BRKON && m_CTSin)
/* enter break mode */
send_break(true);
else
{
if (!m_RTSON && (!m_CTSin || (m_XBRE && !m_BRKout)))
/* clear RTS output */
set_rts(CLEAR_LINE);
else
{
if (VERBOSE>5) LOG("TMS9902: transferring XBR to XSR; XSRE=false, XBRE=true\n");
m_XSR = m_XBR;
m_XSRE = false;
m_XBRE = true;
field_interrupts();
if (VERBOSE>4) LOG("TMS9902: transmit XSR=%02x, RCL=%02x\n", m_XSR, m_RCL);
xmit_callback(0, m_XSR & (0xff >> (3-m_RCL)));
// Should store that somewhere (but the CPU is fast enough, can afford to recalc :-) )
double fint = m_clock_rate / ((m_CLK4M) ? 4.0 : 3.0);
double baud = fint / (2.0 * ((m_RDV8)? 8:1) * m_RDR);
// Time for transmitting 10 bit (8 bit + start + stop)
m_sendtimer->adjust(attotime::from_hz(baud/10.0));
}
}
}
bool transfer_to_terminal(void)
{
char c;
bool r = true;
int byte_count;
byte_count = read(in, &c, sizeof(c));
if (byte_count > 0) {
if (!escape_state) {
if (opt_exit_ctrl_c && c == CTRL_C_CHAR) {
r = false;
} else if (c != ESCAPE_CHAR) {
if (!opt_translate || c != '\n') {
send_data(&c, byte_count);
} else {
send_data("\r\n", 2);
}
} else {
escape_state = 1;
}
} else {
switch (c) {
case EXIT_CHAR:
r = false;
break;
case RESET_CHAR:
write(out, RESET_SEQUENCE,
sizeof(RESET_SEQUENCE));
break;
case DTR_TOGGLE_CHAR:
toggle(TIOCM_DTR, opt_dtr == DTR_INIT_HIGH, DTR_PULSE_WIDTH);
break;
case RTS_TOGGLE_CHAR:
toggle(TIOCM_RTS, opt_rts == RTS_INIT_HIGH, RTS_PULSE_WIDTH);
break;
case BREAK_CHAR:
send_break();
break;
default:
send_data(&c, byte_count);
}
escape_state = 0;
}
} else {
r = false;
}
return r;
}
/*
Called whenever the incoming CTS* line changes. This should be called by
the device that contains the UART.
*/
void tms9902_device::rcv_cts(line_state state)
{
bool previous = m_CTSin;
// CTSin is an internal register of the TMS9902 with positive logic
m_CTSin = (state==ASSERT_LINE);
if (VERBOSE>3) LOG("TMS9902: CTS* = %s\n", (state==ASSERT_LINE)? "asserted" : "cleared");
if (m_CTSin != previous)
{
m_DSCH = true;
field_interrupts();
// If CTS becomes asserted and we have been sending
if (state==ASSERT_LINE && m_RTSout)
{
// and if the byte buffer is empty
if (m_XBRE)
{
// and we want to have a BRK, send it
if (m_BRKON) send_break(true);
}
else
{
// Buffer is not empty, we can send it
// If the shift register is empty, transfer the data
if (m_XSRE && !m_BRKout)
{
initiate_transmit();
}
}
}
}
else
{
m_DSCH = false;
if (VERBOSE>4) LOG("TMS9902: no change in CTS line, no interrupt.");
}
}
static int xmbrs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
struct xmb_serial * info = (struct xmb_serial *)tty->driver_data;
unsigned int val;
int retval, error;
int dtr, rts;
if (serial_paranoia_check(info, tty->device, "xmbrs_ioctl"))
return -ENODEV;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, HZ/4); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(HZ/10) : HZ/4);
return 0;
case TIOCGSOFTCAR:
error = verify_area(VERIFY_WRITE, (void *) arg,sizeof(long));
if (error)
return error;
put_user(C_CLOCAL(tty) ? 1 : 0,
(unsigned long *) arg);
return 0;
case TIOCSSOFTCAR:
get_user(arg, (unsigned long *) arg);
tty->termios->c_cflag =
((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
return 0;
case TIOCGSERIAL:
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(struct serial_struct));
if (error)
return error;
return get_serial_info(info,
(struct serial_struct *) arg);
case TIOCSSERIAL:
return set_serial_info(info,
(struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int));
if (error)
return error;
else
return get_lsr_info(info, (unsigned int *) arg);
case TIOCSERGSTRUCT:
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(struct xmb_serial));
if (error)
return error;
copy_to_user((struct xmb_serial *) arg,
info, sizeof(struct xmb_serial));
return 0;
case TIOCMGET:
if ((error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int))))
return(error);
val = 0;
put_user(val, (unsigned int *) arg);
break;
case TIOCMBIS:
if ((error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int))))
return(error);
get_user(val, (unsigned int *) arg);
rts = (val & TIOCM_RTS) ? 1 : -1;
dtr = (val & TIOCM_DTR) ? 1 : -1;
break;
case TIOCMBIC:
if ((error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int))))
return(error);
get_user(val, (unsigned int *) arg);
rts = (val & TIOCM_RTS) ? 0 : -1;
dtr = (val & TIOCM_DTR) ? 0 : -1;
break;
case TIOCMSET:
if ((error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int))))
return(error);
get_user(val, (unsigned int *) arg);
rts = (val & TIOCM_RTS) ? 1 : 0;
dtr = (val & TIOCM_DTR) ? 1 : 0;
break;
#ifdef TIOCSET422
case TIOCSET422:
get_user(val, (unsigned int *) arg);
xmb_setpa(XMBPP_PA11, (val ? 0 : XMBPP_PA11));
break;
case TIOCGET422:
val = (xmb_getpa() & XMBPP_PA11) ? 0 : 1;
put_user(val, (unsigned int *) arg);
break;
#endif
default:
return -ENOIOCTLCMD;
}
return 0;
}
static int rs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
int error;
struct NIOS_serial * info = (struct NIOS_serial *)tty->driver_data;
int retval;
if (serial_paranoia_check(info, tty->device, "rs_ioctl"))
return -ENODEV;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, HZ/4); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(HZ/10) : HZ/4);
return 0;
case TIOCGSOFTCAR:
error = verify_area(VERIFY_WRITE, (void *) arg,sizeof(long));
if (error)
return error;
put_user(C_CLOCAL(tty) ? 1 : 0,
(unsigned long *) arg);
return 0;
case TIOCSSOFTCAR:
get_user(arg, (unsigned long *) arg);
tty->termios->c_cflag =
((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
return 0;
case TIOCGSERIAL:
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(struct serial_struct));
if (error)
return error;
return get_serial_info(info,
(struct serial_struct *) arg);
case TIOCSSERIAL:
return set_serial_info(info,
(struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int));
if (error)
return error;
else
return get_lsr_info(info, (unsigned int *) arg);
case TIOCSERGSTRUCT:
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(struct NIOS_serial));
if (error)
return error;
copy_to_user((struct NIOS_serial *) arg,
info, sizeof(struct NIOS_serial));
return 0;
default:
return -ENOIOCTLCMD;
}
return 0;
}
static int rs_360_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
int error;
ser_info_t *info = (ser_info_t *)tty->driver_data;
int retval;
struct async_icount cnow;
/* struct async_icount_24 cnow;*/ /* kernel counter temps */
struct serial_icounter_struct *p_cuser; /* user space */
if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
return -ENODEV;
if ((cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (signal_pending(current))
return -EINTR;
if (!arg) {
send_break(info, 250); /* 1/4 second */
if (signal_pending(current))
return -EINTR;
}
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (signal_pending(current))
return -EINTR;
send_break(info, arg ? arg*100 : 250);
if (signal_pending(current))
return -EINTR;
return 0;
case TIOCSBRK:
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
begin_break(info);
return 0;
case TIOCCBRK:
retval = tty_check_change(tty);
if (retval)
return retval;
end_break(info);
return 0;
#ifdef maybe
case TIOCSERGETLSR: /* Get line status register */
return get_lsr_info(info, (unsigned int *) arg);
#endif
/*
* Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
* - mask passed in arg for lines of interest
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
case TIOCMIWAIT:
#ifdef modem_control
local_irq_disable();
/* note the counters on entry */
cprev = info->state->icount;
local_irq_enable();
while (1) {
interruptible_sleep_on(&info->delta_msr_wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
local_irq_disable();
cnow = info->state->icount; /* atomic copy */
local_irq_enable();
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
return -EIO; /* no change => error */
if ( ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
return 0;
}
cprev = cnow;
}
/* NOTREACHED */
#else
return 0;
#endif
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct
* NB: both 1->0 and 0->1 transitions are counted except for
* RI where only 0->1 is counted.
*/
case TIOCGICOUNT:
local_irq_disable();
cnow = info->state->icount;
local_irq_enable();
p_cuser = (struct serial_icounter_struct *) arg;
/* error = put_user(cnow.cts, &p_cuser->cts); */
/* if (error) return error; */
/* error = put_user(cnow.dsr, &p_cuser->dsr); */
/* if (error) return error; */
/* error = put_user(cnow.rng, &p_cuser->rng); */
/* if (error) return error; */
/* error = put_user(cnow.dcd, &p_cuser->dcd); */
/* if (error) return error; */
put_user(cnow.cts, &p_cuser->cts);
put_user(cnow.dsr, &p_cuser->dsr);
put_user(cnow.rng, &p_cuser->rng);
put_user(cnow.dcd, &p_cuser->dcd);
return 0;
default:
return -ENOIOCTLCMD;
}
return 0;
}
int tty_ioctl(int dev, int cmd, int arg)
{
struct tty_struct * tty;
if (MAJOR(dev) == 5) {
dev=current->tty;
if (dev<0)
panic("tty_ioctl: dev<0");
} else
dev=MINOR(dev);
tty = dev + tty_table;
switch (cmd) {
case TCGETS:
return get_termios(tty,(struct termios *) arg);
case TCSETSF:
flush(&tty->read_q); /* fallthrough */
case TCSETSW:
wait_until_sent(tty); /* fallthrough */
case TCSETS:
return set_termios(tty,(struct termios *) arg);
case TCGETA:
return get_termio(tty,(struct termio *) arg);
case TCSETAF:
flush(&tty->read_q); /* fallthrough */
case TCSETAW:
wait_until_sent(tty); /* fallthrough */
case TCSETA:
return set_termio(tty,(struct termio *) arg);
case TCSBRK:
if (!arg) {
wait_until_sent(tty);
send_break(tty);
}
return 0;
case TCXONC:
return -EINVAL; /* not implemented */
case TCFLSH:
if (arg==0)
flush(&tty->read_q);
else if (arg==1)
flush(&tty->write_q);
else if (arg==2) {
flush(&tty->read_q);
flush(&tty->write_q);
} else
return -EINVAL;
return 0;
case TIOCEXCL:
return -EINVAL; /* not implemented */
case TIOCNXCL:
return -EINVAL; /* not implemented */
case TIOCSCTTY:
return -EINVAL; /* set controlling term NI */
case TIOCGPGRP:
verify_area((void *) arg,4);
put_fs_long(tty->pgrp,(unsigned long *) arg);
return 0;
case TIOCSPGRP:
tty->pgrp=get_fs_long((unsigned long *) arg);
return 0;
case TIOCOUTQ:
verify_area((void *) arg,4);
put_fs_long(CHARS(tty->write_q),(unsigned long *) arg);
return 0;
case TIOCSTI:
return -EINVAL; /* not implemented */
case TIOCGWINSZ:
return -EINVAL; /* not implemented */
case TIOCSWINSZ:
return -EINVAL; /* not implemented */
case TIOCMGET:
return -EINVAL; /* not implemented */
case TIOCMBIS:
return -EINVAL; /* not implemented */
case TIOCMBIC:
return -EINVAL; /* not implemented */
case TIOCMSET:
return -EINVAL; /* not implemented */
case TIOCGSOFTCAR:
return -EINVAL; /* not implemented */
case TIOCSSOFTCAR:
return -EINVAL; /* not implemented */
default:
return -EINVAL;
}
}
static int mcfrs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
struct mcf_serial * info = (struct mcf_serial *)tty->driver_data;
int retval, error;
if (serial_paranoia_check(info, tty->name, "mcfrs_ioctl"))
return -ENODEV;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, HZ/4); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(HZ/10) : HZ/4);
return 0;
case TIOCGSERIAL:
if (access_ok(VERIFY_WRITE, (void *) arg,
sizeof(struct serial_struct)))
return get_serial_info(info,
(struct serial_struct *) arg);
return -EFAULT;
case TIOCSSERIAL:
return set_serial_info(info,
(struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
if (access_ok(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int)))
return get_lsr_info(info, (unsigned int *) arg);
return -EFAULT;
case TIOCSERGSTRUCT:
error = copy_to_user((struct mcf_serial *) arg,
info, sizeof(struct mcf_serial));
if (error)
return -EFAULT;
return 0;
#ifdef TIOCSET422
case TIOCSET422: {
unsigned int val;
get_user(val, (unsigned int *) arg);
mcf_setpa(MCFPP_PA11, (val ? 0 : MCFPP_PA11));
break;
}
case TIOCGET422: {
unsigned int val;
val = (mcf_getpa() & MCFPP_PA11) ? 0 : 1;
put_user(val, (unsigned int *) arg);
break;
}
#endif
default:
return -ENOIOCTLCMD;
}
return 0;
}
static int rs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
int error;
struct async_struct * info = (struct async_struct *)tty->driver_data;
int retval;
if (serial_paranoia_check(info, tty->device, "rs_ioctl"))
return -ENODEV;
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) &&
(cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT) &&
(cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
}
switch (cmd) {
case TCSBRK: /* SVID version: non-zero arg --> no break */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
send_break(info, HZ/4); /* 1/4 second */
return 0;
case TCSBRKP: /* support for POSIX tcsendbreak() */
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
send_break(info, arg ? arg*(HZ/10) : HZ/4);
return 0;
case TIOCGSOFTCAR:
error = verify_area(VERIFY_WRITE, (void *) arg,sizeof(long));
if (error)
return error;
put_fs_long(C_CLOCAL(tty) ? 1 : 0,
(unsigned long *) arg);
return 0;
case TIOCSSOFTCAR:
error = verify_area(VERIFY_READ, (void *) arg, sizeof(long));
if (error)
return error;
arg = get_fs_long((unsigned long *) arg);
tty->termios->c_cflag =
((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
return 0;
case TIOCMGET:
error = verify_area(VERIFY_WRITE, (void *) arg,
sizeof(unsigned int));
if (error)
return error;
return get_modem_info(info, (unsigned int *) arg);
case TIOCMBIS:
case TIOCMBIC:
case TIOCMSET:
return set_modem_info(info, cmd, (unsigned int *) arg);
default:
return -ENOIOCTLCMD;
}
return 0;
}
int tty_ioctl(int dev, int cmd, int arg)
{
struct tty_struct * tty;
struct tty_struct * other_tty;
int pgrp;
if (MAJOR(dev) == 5) {
dev = current->tty;
if (dev<0)
return -EINVAL;
} else
dev=MINOR(dev);
tty = tty_table + (dev ? ((dev < 64)? dev-1:dev) : fg_console);
if (IS_A_PTY(dev))
other_tty = tty_table + PTY_OTHER(dev);
else
other_tty = NULL;
if (!(tty->write_q && tty->read_q && tty->secondary && tty->write))
return -EINVAL;
switch (cmd) {
case TCGETS:
return get_termios(tty,(struct termios *) arg);
case TCSETSF:
flush(tty->read_q);
flush(tty->secondary);
if (other_tty)
flush(other_tty->write_q);
/* fallthrough */
case TCSETSW:
wait_until_sent(tty);
/* fallthrough */
case TCSETS:
return set_termios(tty,(struct termios *) arg, dev);
case TCGETA:
return get_termio(tty,(struct termio *) arg);
case TCSETAF:
flush(tty->read_q);
flush(tty->secondary);
if (other_tty)
flush(other_tty->write_q);
/* fallthrough */
case TCSETAW:
wait_until_sent(tty); /* fallthrough */
case TCSETA:
return set_termio(tty,(struct termio *) arg, dev);
case TCSBRK:
if (!arg) {
wait_until_sent(tty);
send_break(tty);
}
return 0;
case TCXONC:
switch (arg) {
case TCOOFF:
tty->stopped = 1;
tty->write(tty);
return 0;
case TCOON:
tty->stopped = 0;
tty->write(tty);
return 0;
case TCIOFF:
if (STOP_CHAR(tty))
PUTCH(STOP_CHAR(tty),tty->write_q);
return 0;
case TCION:
if (START_CHAR(tty))
PUTCH(START_CHAR(tty),tty->write_q);
return 0;
}
return -EINVAL; /* not implemented */
case TCFLSH:
if (arg==0) {
flush(tty->read_q);
flush(tty->secondary);
if (other_tty)
flush(other_tty->write_q);
} else if (arg==1)
flush(tty->write_q);
else if (arg==2) {
flush(tty->read_q);
flush(tty->secondary);
flush(tty->write_q);
if (other_tty)
flush(other_tty->write_q);
} else
return -EINVAL;
return 0;
case TIOCEXCL:
return -EINVAL; /* not implemented */
case TIOCNXCL:
return -EINVAL; /* not implemented */
case TIOCSCTTY:
return -EINVAL; /* set controlling term NI */
case TIOCGPGRP:
verify_area((void *) arg,4);
put_fs_long(tty->pgrp,(unsigned long *) arg);
return 0;
case TIOCSPGRP:
if ((current->tty < 0) ||
(current->tty != dev) ||
(tty->session != current->session))
return -ENOTTY;
pgrp=get_fs_long((unsigned long *) arg);
if (pgrp < 0)
return -EINVAL;
if (session_of_pgrp(pgrp) != current->session)
return -EPERM;
tty->pgrp = pgrp;
return 0;
case TIOCOUTQ:
verify_area((void *) arg,4);
put_fs_long(CHARS(tty->write_q),(unsigned long *) arg);
return 0;
case TIOCINQ:
verify_area((void *) arg,4);
put_fs_long(CHARS(tty->secondary),
(unsigned long *) arg);
return 0;
case TIOCSTI:
return -EINVAL; /* not implemented */
case TIOCGWINSZ:
return get_window_size(tty,(struct winsize *) arg);
case TIOCSWINSZ:
if (other_tty)
set_window_size(other_tty,(struct winsize *) arg);
return set_window_size(tty,(struct winsize *) arg);
case TIOCMGET:
return -EINVAL; /* not implemented */
case TIOCMBIS:
return -EINVAL; /* not implemented */
case TIOCMBIC:
return -EINVAL; /* not implemented */
case TIOCMSET:
return -EINVAL; /* not implemented */
case TIOCGSOFTCAR:
return -EINVAL; /* not implemented */
case TIOCSSOFTCAR:
return -EINVAL; /* not implemented */
case TIOCLINUX:
switch (get_fs_byte((char *)arg))
{
case 0:
return do_screendump(arg);
case 1:
return do_get_ps_info(arg);
default:
return -EINVAL;
}
default:
return -EINVAL;
}
}