unsigned long event;
int count; /* # of fd on device */
int blocked_open; /* # of blocked opens */
- long session; /* Session of opening process */
- long pgrp; /* pgrp of opening process */
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
/* Initialize the tty_driver structure */
memset(mxvar_sdriver, 0, sizeof(struct tty_driver));
+ mxvar_sdriver->owner = THIS_MODULE;
mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
mxvar_sdriver->name = "ttyMI";
mxvar_sdriver->major = ttymajor;
mxser_change_speed(info, NULL);
}
- info->session = process_session(current);
- info->pgrp = process_group(current);
-
/*
status = mxser_get_msr(info->base, 0, info->port);
mxser_check_modem_status(info, status);
*/
-/* unmark here for very high baud rate (ex. 921600 bps) used */
+ /* unmark here for very high baud rate (ex. 921600 bps) used */
tty->low_latency = 1;
return 0;
}
spin_unlock_irqrestore(&info->slock, flags);
/* above added by shinhay */
- wake_up_interruptible(&tty->write_wait);
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup) (tty);
+ tty_wakeup(tty);
}
static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
- case TIOCMIWAIT: {
- DECLARE_WAITQUEUE(wait, current);
- int ret;
+ case TIOCMIWAIT:
+ spin_lock_irqsave(&info->slock, flags);
+ cnow = info->icount; /* note the counters on entry */
+ spin_unlock_irqrestore(&info->slock, flags);
+
+ wait_event_interruptible(info->delta_msr_wait, ({
+ cprev = cnow;
spin_lock_irqsave(&info->slock, flags);
- cprev = info->icount; /* note the counters on entry */
+ cnow = info->icount; /* atomic copy */
spin_unlock_irqrestore(&info->slock, flags);
- add_wait_queue(&info->delta_msr_wait, &wait);
- while (1) {
- spin_lock_irqsave(&info->slock, flags);
- cnow = info->icount; /* atomic copy */
- spin_unlock_irqrestore(&info->slock, flags);
-
- set_current_state(TASK_INTERRUPTIBLE);
- 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))) {
- ret = 0;
- break;
- }
- /* see if a signal did it */
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- cprev = cnow;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&info->delta_msr_wait, &wait);
- break;
- }
- /* NOTREACHED */
+ ((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));
+ }));
+ break;
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct