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USB: io_ti: switch to generic get_icount implementation

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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>
This commit is contained in:
Johan Hovold 2013-03-21 12:37:09 +01:00 committed by Greg Kroah-Hartman
parent 8b8070d858
commit cf9a9d66bd
1 changed files with 8 additions and 32 deletions
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40
drivers/usb/serial/io_ti.c
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@ -86,7 +86,6 @@ struct edgeport_port {
int baud_rate; int baud_rate;
int close_pending; int close_pending;
int lsr_event; int lsr_event;
struct async_icount icount;
struct edgeport_serial *edge_serial; struct edgeport_serial *edge_serial;
struct usb_serial_port *port; struct usb_serial_port *port;
__u8 bUartMode; /* Port type, 0: RS232, etc. */ __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 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
icount = &edge_port->icount; icount = &edge_port->port->icount;
/* update input line counters */ /* update input line counters */
if (msr & EDGEPORT_MSR_DELTA_CTS) 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); edge_tty_recv(edge_port->port, &data, 1);
/* update input line counters */ /* update input line counters */
icount = &edge_port->icount; icount = &edge_port->port->icount;
if (new_lsr & LSR_BREAK) if (new_lsr & LSR_BREAK)
icount->brk++; icount->brk++;
if (new_lsr & LSR_OVER_ERR) if (new_lsr & LSR_OVER_ERR)
@ -1657,7 +1656,7 @@ static void edge_bulk_in_callback(struct urb *urb)
else else
edge_tty_recv(edge_port->port, data, edge_tty_recv(edge_port->port, data,
urb->actual_length); urb->actual_length);
edge_port->icount.rx += urb->actual_length; edge_port->port->icount.rx += urb->actual_length;
} }
exit: exit:
@ -1750,8 +1749,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
dev = port->serial->dev; dev = port->serial->dev;
memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
/* turn off loopback */ /* turn off loopback */
status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);
if (status) { if (status) {
@ -1999,7 +1996,7 @@ static void edge_send(struct tty_struct *tty)
edge_port->ep_write_urb_in_use = 0; edge_port->ep_write_urb_in_use = 0;
/* TODO: reschedule edge_send */ /* TODO: reschedule edge_send */
} else } else
edge_port->icount.tx += count; edge_port->port->icount.tx += count;
/* wakeup any process waiting for writes to complete */ /* wakeup any process waiting for writes to complete */
/* there is now more room in the buffer for new writes */ /* 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; 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, static int get_serial_info(struct edgeport_port *edge_port,
struct serial_struct __user *retinfo) struct serial_struct __user *retinfo)
{ {
@ -2428,7 +2404,7 @@ static int edge_ioctl(struct tty_struct *tty,
(struct serial_struct __user *) arg); (struct serial_struct __user *) arg);
case TIOCMIWAIT: case TIOCMIWAIT:
dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
cprev = edge_port->icount; cprev = edge_port->port->icount;
while (1) { while (1) {
interruptible_sleep_on(&port->delta_msr_wait); interruptible_sleep_on(&port->delta_msr_wait);
/* see if a signal did it */ /* see if a signal did it */
@ -2438,7 +2414,7 @@ static int edge_ioctl(struct tty_struct *tty,
if (port->serial->disconnected) if (port->serial->disconnected)
return -EIO; return -EIO;
cnow = edge_port->icount; cnow = port->icount;
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
return -EIO; /* no change => error */ return -EIO; /* no change => error */
@ -2618,7 +2594,7 @@ static struct usb_serial_driver edgeport_1port_device = {
.set_termios = edge_set_termios, .set_termios = edge_set_termios,
.tiocmget = edge_tiocmget, .tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset, .tiocmset = edge_tiocmset,
.get_icount = edge_get_icount, .get_icount = usb_serial_generic_get_icount,
.write = edge_write, .write = edge_write,
.write_room = edge_write_room, .write_room = edge_write_room,
.chars_in_buffer = edge_chars_in_buffer, .chars_in_buffer = edge_chars_in_buffer,
@ -2649,7 +2625,7 @@ static struct usb_serial_driver edgeport_2port_device = {
.set_termios = edge_set_termios, .set_termios = edge_set_termios,
.tiocmget = edge_tiocmget, .tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset, .tiocmset = edge_tiocmset,
.get_icount = edge_get_icount, .get_icount = usb_serial_generic_get_icount,
.write = edge_write, .write = edge_write,
.write_room = edge_write_room, .write_room = edge_write_room,
.chars_in_buffer = edge_chars_in_buffer, .chars_in_buffer = edge_chars_in_buffer,