diff options
| -rw-r--r-- | drivers/tty/serial/68328serial.c | 96 |
1 files changed, 5 insertions, 91 deletions
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c index 77e10bb89e4..3ed20e435e5 100644 --- a/drivers/tty/serial/68328serial.c +++ b/drivers/tty/serial/68328serial.c @@ -1104,96 +1104,6 @@ void rs_hangup(struct tty_struct *tty) } /* - * ------------------------------------------------------------ - * rs_open() and friends - * ------------------------------------------------------------ - */ -static int block_til_ready(struct tty_struct *tty, struct file * filp, - struct m68k_serial *info) -{ - struct tty_port *port = &info->tport; - DECLARE_WAITQUEUE(wait, current); - int retval; - int do_clocal = 0; - - /* - * If the device is in the middle of being closed, then block - * until it's done, and then try again. - */ - if (port->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&port->close_wait); -#ifdef SERIAL_DO_RESTART - if (port->flags & ASYNC_HUP_NOTIFY) - return -EAGAIN; - else - return -ERESTARTSYS; -#else - return -EAGAIN; -#endif - } - - /* - * If non-blocking mode is set, or the port is not enabled, - * then make the check up front and then exit. - */ - if ((filp->f_flags & O_NONBLOCK) || - (tty->flags & (1 << TTY_IO_ERROR))) { - port->flags |= ASYNC_NORMAL_ACTIVE; - return 0; - } - - if (tty->termios->c_cflag & CLOCAL) - do_clocal = 1; - - /* - * Block waiting for the carrier detect and the line to become - * free (i.e., not in use by the callout). While we are in - * this loop, port->count is dropped by one, so that - * rs_close() knows when to free things. We restore it upon - * exit, either normal or abnormal. - */ - retval = 0; - add_wait_queue(&port->open_wait, &wait); - - port->count--; - port->blocked_open++; - while (1) { - current->state = TASK_INTERRUPTIBLE; - if (tty_hung_up_p(filp) || - !(port->flags & ASYNC_INITIALIZED)) { -#ifdef SERIAL_DO_RESTART - if (port->flags & ASYNC_HUP_NOTIFY) - retval = -EAGAIN; - else - retval = -ERESTARTSYS; -#else - retval = -EAGAIN; -#endif - break; - } - if (!(port->flags & ASYNC_CLOSING) && do_clocal) - break; - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } - tty_unlock(); - schedule(); - tty_lock(); - } - current->state = TASK_RUNNING; - remove_wait_queue(&port->open_wait, &wait); - if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; - - if (retval) - return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; - return 0; -} - -/* * This routine is called whenever a serial port is opened. It * enables interrupts for a serial port, linking in its S structure into * the IRQ chain. It also performs the serial-specific @@ -1220,7 +1130,7 @@ int rs_open(struct tty_struct *tty, struct file * filp) if (retval) return retval; - return block_til_ready(tty, filp, info); + return tty_port_block_til_ready(&info->tport, tty, filp); } /* Finally, routines used to initialize the serial driver. */ @@ -1248,6 +1158,9 @@ static const struct tty_operations rs_ops = { .set_ldisc = rs_set_ldisc, }; +static const struct tty_port_operations rs_port_ops = { +}; + /* rs_init inits the driver */ static int __init rs68328_init(void) @@ -1288,6 +1201,7 @@ rs68328_init(void) info = &m68k_soft[i]; tty_port_init(&info->tport); + info->tport.ops = &rs_port_ops; info->magic = SERIAL_MAGIC; info->port = (int) &uart_addr[i]; info->irq = uart_irqs[i]; |