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USB: ark3116: switch to generic get_icount implementation 

Switch to the generic get_icount implementation.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2013-03-21 12:36:58 +01:00 committed by Greg Kroah-Hartman
parent 6f86fec9fa
commit b4cb7536cc
1 changed files with 18 additions and 40 deletions
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58
drivers/usb/serial/ark3116.c
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@ -62,7 +62,6 @@ static int is_irda(struct usb_serial *serial)
}
struct ark3116_private {
struct async_icount icount;
int irda; /* 1 for irda device */
/* protects hw register updates */
@ -402,31 +401,10 @@ err_out:
return result;
}
static int ark3116_get_icount(struct tty_struct *tty,
struct serial_icounter_struct *icount)
{
struct usb_serial_port *port = tty->driver_data;
struct ark3116_private *priv = usb_get_serial_port_data(port);
struct async_icount cnow = priv->icount;
icount->cts = cnow.cts;
icount->dsr = cnow.dsr;
icount->rng = cnow.rng;
icount->dcd = cnow.dcd;
icount->rx = cnow.rx;
icount->tx = cnow.tx;
icount->frame = cnow.frame;
icount->overrun = cnow.overrun;
icount->parity = cnow.parity;
icount->brk = cnow.brk;
icount->buf_overrun = cnow.buf_overrun;
return 0;
}
static int ark3116_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
struct ark3116_private *priv = usb_get_serial_port_data(port);
struct serial_struct serstruct;
void __user *user_arg = (void __user *)arg;
@ -450,7 +428,7 @@ static int ark3116_ioctl(struct tty_struct *tty,
return 0;
case TIOCMIWAIT:
for (;;) {
struct async_icount prev = priv->icount;
struct async_icount prev = port->icount;
interruptible_sleep_on(&port->delta_msr_wait);
/* see if a signal did it */
if (signal_pending(current))
@ -459,19 +437,19 @@ static int ark3116_ioctl(struct tty_struct *tty,
if (port->serial->disconnected)
return -EIO;
if ((prev.rng == priv->icount.rng) &&
(prev.dsr == priv->icount.dsr) &&
(prev.dcd == priv->icount.dcd) &&
(prev.cts == priv->icount.cts))
if ((prev.rng == port->icount.rng) &&
(prev.dsr == port->icount.dsr) &&
(prev.dcd == port->icount.dcd) &&
(prev.cts == port->icount.cts))
return -EIO;
if ((arg & TIOCM_RNG &&
(prev.rng != priv->icount.rng)) ||
(prev.rng != port->icount.rng)) ||
(arg & TIOCM_DSR &&
(prev.dsr != priv->icount.dsr)) ||
(prev.dsr != port->icount.dsr)) ||
(arg & TIOCM_CD &&
(prev.dcd != priv->icount.dcd)) ||
(prev.dcd != port->icount.dcd)) ||
(arg & TIOCM_CTS &&
(prev.cts != priv->icount.cts)))
(prev.cts != port->icount.cts)))
return 0;
}
break;
@ -572,13 +550,13 @@ static void ark3116_update_msr(struct usb_serial_port *port, __u8 msr)
if (msr & UART_MSR_ANY_DELTA) {
/* update input line counters */
if (msr & UART_MSR_DCTS)
priv->icount.cts++;
port->icount.cts++;
if (msr & UART_MSR_DDSR)
priv->icount.dsr++;
port->icount.dsr++;
if (msr & UART_MSR_DDCD)
priv->icount.dcd++;
port->icount.dcd++;
if (msr & UART_MSR_TERI)
priv->icount.rng++;
port->icount.rng++;
wake_up_interruptible(&port->delta_msr_wait);
}
}
@ -595,13 +573,13 @@ static void ark3116_update_lsr(struct usb_serial_port *port, __u8 lsr)
if (lsr&UART_LSR_BRK_ERROR_BITS) {
if (lsr & UART_LSR_BI)
priv->icount.brk++;
port->icount.brk++;
if (lsr & UART_LSR_FE)
priv->icount.frame++;
port->icount.frame++;
if (lsr & UART_LSR_PE)
priv->icount.parity++;
port->icount.parity++;
if (lsr & UART_LSR_OE)
priv->icount.overrun++;
port->icount.overrun++;
}
}
@ -719,7 +697,7 @@ static struct usb_serial_driver ark3116_device = {
.ioctl = ark3116_ioctl,
.tiocmget = ark3116_tiocmget,
.tiocmset = ark3116_tiocmset,
.get_icount = ark3116_get_icount,
.get_icount = usb_serial_generic_get_icount,
.open = ark3116_open,
.close = ark3116_close,
.break_ctl = ark3116_break_ctl,