USB: mos7840: switch to generic get_icount implementation
Switch to the generic get_icount implementation.
Note that the interrupt counters will no longer be reset at open which
is in accordance with which how the other drivers work.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 7af3d42..92feae6 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -220,7 +220,6 @@
char open_ports;
wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */
int delta_msr_cond;
- struct async_icount icount;
struct usb_serial_port *port; /* loop back to the owner of this object */
/* Offsets */
@@ -399,11 +398,10 @@
struct moschip_port *mos7840_port;
struct async_icount *icount;
mos7840_port = port;
- icount = &mos7840_port->icount;
if (new_msr &
(MOS_MSR_DELTA_CTS | MOS_MSR_DELTA_DSR | MOS_MSR_DELTA_RI |
MOS_MSR_DELTA_CD)) {
- icount = &mos7840_port->icount;
+ icount = &mos7840_port->port->icount;
/* update input line counters */
if (new_msr & MOS_MSR_DELTA_CTS)
@@ -434,7 +432,7 @@
}
/* update input line counters */
- icount = &port->icount;
+ icount = &port->port->icount;
if (new_lsr & SERIAL_LSR_BI)
icount->brk++;
if (new_lsr & SERIAL_LSR_OE)
@@ -761,8 +759,8 @@
struct tty_port *tport = &mos7840_port->port->port;
tty_insert_flip_string(tport, data, urb->actual_length);
tty_flip_buffer_push(tport);
- mos7840_port->icount.rx += urb->actual_length;
- dev_dbg(&port->dev, "mos7840_port->icount.rx is %d:\n", mos7840_port->icount.rx);
+ port->icount.rx += urb->actual_length;
+ dev_dbg(&port->dev, "icount.rx is %d:\n", port->icount.rx);
}
if (!mos7840_port->read_urb) {
@@ -1113,17 +1111,12 @@
/* initialize our wait queues */
init_waitqueue_head(&mos7840_port->wait_chase);
- /* initialize our icount structure */
- memset(&(mos7840_port->icount), 0x00, sizeof(mos7840_port->icount));
-
/* initialize our port settings */
/* Must set to enable ints! */
mos7840_port->shadowMCR = MCR_MASTER_IE;
/* send a open port command */
mos7840_port->open = 1;
/* mos7840_change_port_settings(mos7840_port,old_termios); */
- mos7840_port->icount.tx = 0;
- mos7840_port->icount.rx = 0;
return 0;
}
@@ -1489,8 +1482,8 @@
goto exit;
}
bytes_sent = transfer_size;
- mos7840_port->icount.tx += transfer_size;
- dev_dbg(&port->dev, "mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx);
+ port->icount.tx += transfer_size;
+ dev_dbg(&port->dev, "icount.tx is %d:\n", port->icount.tx);
exit:
return bytes_sent;
@@ -2109,37 +2102,6 @@
return 0;
}
-static int mos7840_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port;
- struct async_icount cnow;
- unsigned long flags;
-
- mos7840_port = mos7840_get_port_private(port);
-
- spin_lock_irqsave(&port->lock, flags);
- cnow = mos7840_port->icount;
- spin_unlock_irqrestore(&port->lock, flags);
-
- 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;
-
- dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", __func__,
- icount->rx, icount->tx);
- return 0;
-}
-
/*****************************************************************************
* SerialIoctl
* this function handles any ioctl calls to the driver
@@ -2183,7 +2145,7 @@
case TIOCMIWAIT:
dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__);
spin_lock_irqsave(&port->lock, flags);
- cprev = mos7840_port->icount;
+ cprev = port->icount;
spin_unlock_irqrestore(&port->lock, flags);
while (1) {
/* interruptible_sleep_on(&mos7840_port->delta_msr_wait); */
@@ -2201,7 +2163,7 @@
return -EIO;
spin_lock_irqsave(&port->lock, flags);
- cnow = mos7840_port->icount;
+ cnow = port->icount;
spin_unlock_irqrestore(&port->lock, flags);
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
@@ -2565,7 +2527,7 @@
.break_ctl = mos7840_break,
.tiocmget = mos7840_tiocmget,
.tiocmset = mos7840_tiocmset,
- .get_icount = mos7840_get_icount,
+ .get_icount = usb_serial_generic_get_icount,
.port_probe = mos7840_port_probe,
.port_remove = mos7840_port_remove,
.read_bulk_callback = mos7840_bulk_in_callback,