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isicom: restore using hardware break support 

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-07-22 11:18:21 +01:00 committed by Linus Torvalds
parent dcbf128079
commit 6d88972433
2 changed files with 10 additions and 22 deletions
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2
drivers/char/Kconfig
View File

@ -218,7 +218,7 @@ config MOXA_SMARTIO
config ISI
tristate "Multi-Tech multiport card support (EXPERIMENTAL)"
depends on SERIAL_NONSTANDARD && PCI && BROKEN
depends on SERIAL_NONSTANDARD && PCI
select FW_LOADER
help
This is a driver for the Multi-Tech cards which provide several

30
drivers/char/isicom.c
View File

@ -1181,14 +1181,17 @@ static int isicom_chars_in_buffer(struct tty_struct *tty)
}
/* ioctl et all */
static inline void isicom_send_break(struct isi_port *port,
unsigned long length)
static int isicom_send_break(struct tty_struct *tty, int length)
{
struct isi_port *port = tty->driver_data;
struct isi_board *card = port->card;
unsigned long base = card->base;
if (length == -1)
return -EOPNOTSUPP;
if (!lock_card(card))
return;
return -EINVAL;
outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base);
outw((length & 0xff) << 8 | 0x00, base);
@ -1196,6 +1199,7 @@ static inline void isicom_send_break(struct isi_port *port,
InterruptTheCard(base);
unlock_card(card);
return 0;
}
static int isicom_tiocmget(struct tty_struct *tty, struct file *file)
@ -1305,28 +1309,11 @@ static int isicom_ioctl(struct tty_struct *tty, struct file *filp,
{
struct isi_port *port = tty->driver_data;
void __user *argp = (void __user *)arg;
int retval;
if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
return -ENODEV;
switch (cmd) {
case TCSBRK:
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
if (!arg)
isicom_send_break(port, HZ/4);
return 0;
case TCSBRKP:
retval = tty_check_change(tty);
if (retval)
return retval;
tty_wait_until_sent(tty, 0);
isicom_send_break(port, arg ? arg * (HZ/10) : HZ/4);
return 0;
case TIOCGSERIAL:
return isicom_get_serial_info(port, argp);
@ -1459,6 +1446,7 @@ static const struct tty_operations isicom_ops = {
.flush_buffer = isicom_flush_buffer,
.tiocmget = isicom_tiocmget,
.tiocmset = isicom_tiocmset,
.break_ctl = isicom_send_break,
};
static int __devinit reset_card(struct pci_dev *pdev,
@ -1832,7 +1820,7 @@ static int __init isicom_init(void)
isicom_normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
CLOCAL;
isicom_normal->flags = TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV;
TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK;
tty_set_operations(isicom_normal, &isicom_ops);
retval = tty_register_driver(isicom_normal);