info->icount.dcd++;
if (status & UART_MSR_DCTS)
info->icount.cts++;
- wake_up_interruptible(&info->delta_msr_wait);
+ wake_up_interruptible(&info->port.delta_msr_wait);
}
if ((info->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
* clear delta_msr_wait queue to avoid mem leaks: we may free the irq
* here so the queue might never be waken up
*/
- wake_up_interruptible(&info->delta_msr_wait);
+ wake_up_interruptible(&info->port.delta_msr_wait);
wake_up_interruptible(&info->break_wait);
/* stop a DMA transfer on the port being closed */
/*
* rs_break() --- routine which turns the break handling on or off
*/
-static void esp_break(struct tty_struct *tty, int break_state)
+static int esp_break(struct tty_struct *tty, int break_state)
{
struct esp_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "esp_break"))
- return;
+ return -EINVAL;
if (break_state == -1) {
spin_lock_irqsave(&info->lock, flags);
serial_out(info, UART_ESI_CMD2, 0x00);
spin_unlock_irqrestore(&info->lock, flags);
}
+ return 0;
}
static int rs_ioctl(struct tty_struct *tty, struct file *file,
spin_unlock_irqrestore(&info->lock, flags);
while (1) {
/* FIXME: convert to new style wakeup */
- interruptible_sleep_on(&info->delta_msr_wait);
+ interruptible_sleep_on(&info->port.delta_msr_wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
wake_up_interruptible(&info->port.open_wait);
}
+static int esp_carrier_raised(struct tty_port *port)
+{
+ struct esp_struct *info = container_of(port, struct esp_struct, port);
+ serial_out(info, UART_ESI_CMD1, ESI_GET_UART_STAT);
+ if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD)
+ return 1;
+ return 0;
+}
+
/*
* ------------------------------------------------------------
* esp_open() and friends
int retval;
int do_clocal = 0;
unsigned long flags;
+ int cd;
+ struct tty_port *port = &info->port;
/*
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp) ||
- (info->port.flags & ASYNC_CLOSING)) {
- if (info->port.flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->port.close_wait);
+ (port->flags & ASYNC_CLOSING)) {
+ if (port->flags & ASYNC_CLOSING)
+ interruptible_sleep_on(&port->close_wait);
#ifdef SERIAL_DO_RESTART
- if (info->port.flags & ASYNC_HUP_NOTIFY)
+ if (port->flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->port.flags |= ASYNC_NORMAL_ACTIVE;
+ port->flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
/*
* 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, info->port.count is dropped by one, so that
+ * 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(&info->port.open_wait, &wait);
+ add_wait_queue(&port->open_wait, &wait);
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n",
- info->line, info->port.count);
+ info->line, port->count);
#endif
spin_lock_irqsave(&info->lock, flags);
if (!tty_hung_up_p(filp))
- info->port.count--;
- info->port.blocked_open++;
+ port->count--;
+ port->blocked_open++;
while (1) {
if ((tty->termios->c_cflag & CBAUD)) {
unsigned int scratch;
}
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->port.flags & ASYNC_INITIALIZED)) {
+ !(port->flags & ASYNC_INITIALIZED)) {
#ifdef SERIAL_DO_RESTART
- if (info->port.flags & ASYNC_HUP_NOTIFY)
+ if (port->flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- serial_out(info, UART_ESI_CMD1, ESI_GET_UART_STAT);
- if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD)
- do_clocal = 1;
+ cd = tty_port_carrier_raised(port);
- if (!(info->port.flags & ASYNC_CLOSING) &&
+ if (!(port->flags & ASYNC_CLOSING) &&
(do_clocal))
break;
if (signal_pending(current)) {
}
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n",
- info->line, info->port.count);
+ info->line, port->count);
#endif
spin_unlock_irqrestore(&info->lock, flags);
schedule();
spin_lock_irqsave(&info->lock, flags);
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->port.open_wait, &wait);
+ remove_wait_queue(&port->open_wait, &wait);
if (!tty_hung_up_p(filp))
- info->port.count++;
- info->port.blocked_open--;
+ port->count++;
+ port->blocked_open--;
spin_unlock_irqrestore(&info->lock, flags);
#ifdef SERIAL_DEBUG_OPEN
printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n",
- info->line, info->port.count);
+ info->line, port->count);
#endif
if (retval)
return retval;
- info->port.flags |= ASYNC_NORMAL_ACTIVE;
+ port->flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
* driver.
*/
-static void show_serial_version(void)
+static void __init show_serial_version(void)
{
printk(KERN_INFO "%s version %s (DMA %u)\n",
serial_name, serial_version, dma);
.tiocmset = esp_tiocmset,
};
+static const struct tty_port_operations esp_port_ops = {
+ .esp_carrier_raised,
+};
+
/*
* The serial driver boot-time initialization code!
*/
offset = 0;
do {
+ tty_port_init(&info->port);
+ info->port.ops = &esp_port_ops;
info->io_port = esp[i] + offset;
info->irq = irq[i];
info->line = (i * 8) + (offset / 8);
info->config.flow_off = flow_off;
info->config.pio_threshold = pio_threshold;
info->next_port = ports;
- init_waitqueue_head(&info->port.open_wait);
- init_waitqueue_head(&info->port.close_wait);
- init_waitqueue_head(&info->delta_msr_wait);
init_waitqueue_head(&info->break_wait);
ports = info;
printk(KERN_INFO "ttyP%d at 0x%04x (irq = %d) is an ESP ",
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff