USB: io_ti: 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/io_ti.c b/drivers/usb/serial/io_ti.c
index 7777172..fb9e664 100644 (file)
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -86,7 +86,6 @@ struct edgeport_port {
        int baud_rate;
        int close_pending;
        int lsr_event;
-       struct async_icount     icount;
        struct edgeport_serial  *edge_serial;
        struct usb_serial_port  *port;
        __u8 bUartMode;         /* Port type, 0: RS232, etc. */
@@ -1445,7 +1444,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
 
        if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
                        EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
-               icount = &edge_port->icount;
+               icount = &edge_port->port->icount;
 
                /* update input line counters */
                if (msr & EDGEPORT_MSR_DELTA_CTS)
@@ -1498,7 +1497,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
                edge_tty_recv(edge_port->port, &data, 1);
 
        /* update input line counters */
-       icount = &edge_port->icount;
+       icount = &edge_port->port->icount;
        if (new_lsr & LSR_BREAK)
                icount->brk++;
        if (new_lsr & LSR_OVER_ERR)
@@ -1657,7 +1656,7 @@ static void edge_bulk_in_callback(struct urb *urb)
                else
                        edge_tty_recv(edge_port->port, data,
                                        urb->actual_length);
-               edge_port->icount.rx += urb->actual_length;
+               edge_port->port->icount.rx += urb->actual_length;
        }
 
 exit:
@@ -1750,8 +1749,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 
        dev = port->serial->dev;
 
-       memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
-
        /* turn off loopback */
        status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);
        if (status) {
@@ -1999,7 +1996,7 @@ static void edge_send(struct tty_struct *tty)
                edge_port->ep_write_urb_in_use = 0;
                /* TODO: reschedule edge_send */
        } else
-               edge_port->icount.tx += count;
+               edge_port->port->icount.tx += count;
 
        /* wakeup any process waiting for writes to complete */
        /* there is now more room in the buffer for new writes */
@@ -2360,27 +2357,6 @@ static int edge_tiocmget(struct tty_struct *tty)
        return result;
 }
 
-static int edge_get_icount(struct tty_struct *tty,
-                               struct serial_icounter_struct *icount)
-{
-       struct usb_serial_port *port = tty->driver_data;
-       struct edgeport_port *edge_port = usb_get_serial_port_data(port);
-       struct async_icount *ic = &edge_port->icount;
-
-       icount->cts = ic->cts;
-       icount->dsr = ic->dsr;
-       icount->rng = ic->rng;
-       icount->dcd = ic->dcd;
-       icount->tx = ic->tx;
-        icount->rx = ic->rx;
-        icount->frame = ic->frame;
-        icount->parity = ic->parity;
-        icount->overrun = ic->overrun;
-        icount->brk = ic->brk;
-        icount->buf_overrun = ic->buf_overrun;
-       return 0;
-}
-
 static int get_serial_info(struct edgeport_port *edge_port,
                                struct serial_struct __user *retinfo)
 {
@@ -2428,7 +2404,7 @@ static int edge_ioctl(struct tty_struct *tty,
                                (struct serial_struct __user *) arg);
        case TIOCMIWAIT:
                dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
-               cprev = edge_port->icount;
+               cprev = edge_port->port->icount;
                while (1) {
                        interruptible_sleep_on(&port->delta_msr_wait);
                        /* see if a signal did it */
@@ -2438,7 +2414,7 @@ static int edge_ioctl(struct tty_struct *tty,
                        if (port->serial->disconnected)
                                return -EIO;
 
-                       cnow = edge_port->icount;
+                       cnow = port->icount;
                        if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
                            cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
                                return -EIO; /* no change => error */
@@ -2618,7 +2594,7 @@ static struct usb_serial_driver edgeport_1port_device = {
        .set_termios            = edge_set_termios,
        .tiocmget               = edge_tiocmget,
        .tiocmset               = edge_tiocmset,
-       .get_icount             = edge_get_icount,
+       .get_icount             = usb_serial_generic_get_icount,
        .write                  = edge_write,
        .write_room             = edge_write_room,
        .chars_in_buffer        = edge_chars_in_buffer,
@@ -2649,7 +2625,7 @@ static struct usb_serial_driver edgeport_2port_device = {
        .set_termios            = edge_set_termios,
        .tiocmget               = edge_tiocmget,
        .tiocmset               = edge_tiocmset,
-       .get_icount             = edge_get_icount,
+       .get_icount             = usb_serial_generic_get_icount,
        .write                  = edge_write,
        .write_room             = edge_write_room,
        .chars_in_buffer        = edge_chars_in_buffer,