tty: isicom: switch to the new tty_port_open helper

Trivial conversion in this case so might as well do it while testing the
port_open design is right

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 426bfdd..e7be3ec 100644 (file)
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -804,24 +804,21 @@ static inline void isicom_setup_board(struct isi_board *bp)
        bp->status |= BOARD_ACTIVE;
        for (channel = 0; channel < bp->port_count; channel++, port++)
                drop_dtr_rts(port);
+       bp->count++;
        spin_unlock_irqrestore(&bp->card_lock, flags);
 }
 
-static int isicom_setup_port(struct tty_struct *tty)
+static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)
 {
-       struct isi_port *port = tty->driver_data;
+       struct isi_port *port = container_of(tport, struct isi_port, port);
        struct isi_board *card = port->card;
        unsigned long flags;
 
-       if (port->port.flags & ASYNC_INITIALIZED)
-               return 0;
-       if (tty_port_alloc_xmit_buf(&port->port) < 0)
+       if (tty_port_alloc_xmit_buf(tport) < 0)
                return -ENOMEM;
 
        spin_lock_irqsave(&card->card_lock, flags);
-       clear_bit(TTY_IO_ERROR, &tty->flags);
-       if (port->port.count == 1)
-               card->count++;
+       isicom_setup_board(card);
 
        port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
 
@@ -832,9 +829,7 @@ static int isicom_setup_port(struct tty_struct *tty)
                outw(((ISICOM_KILLTX | ISICOM_KILLRX) << 8) | 0x06, card->base);
                InterruptTheCard(card->base);
        }
-
        isicom_config_port(tty);
-       port->port.flags |= ASYNC_INITIALIZED;
        spin_unlock_irqrestore(&card->card_lock, flags);
 
        return 0;
@@ -871,31 +866,20 @@ static struct tty_port *isicom_find_port(struct tty_struct *tty)
 
        return &port->port;
 }
-       
+
 static int isicom_open(struct tty_struct *tty, struct file *filp)
 {
        struct isi_port *port;
        struct isi_board *card;
        struct tty_port *tport;
-       int error = 0;
 
        tport = isicom_find_port(tty);
        if (tport == NULL)
                return -ENODEV;
        port = container_of(tport, struct isi_port, port);
        card = &isi_card[BOARD(tty->index)];
-       isicom_setup_board(card);
 
-       /* FIXME: locking on port.count etc */
-       port->port.count++;
-       tty->driver_data = port;
-       tty_port_tty_set(&port->port, tty);
-       /* FIXME: Locking on Initialized flag */
-       if (!test_bit(ASYNCB_INITIALIZED, &tport->flags))
-               error = isicom_setup_port(tty);
-       if (error == 0)
-               error = tty_port_block_til_ready(&port->port, tty, filp);
-       return error;
+       return tty_port_open(tport, tty, filp);
 }
 
 /* close et all */
@@ -914,40 +898,21 @@ static void isicom_shutdown_port(struct isi_port *port)
 
        tty = tty_port_tty_get(&port->port);
 
-       if (!(port->port.flags & ASYNC_INITIALIZED)) {
-               tty_kref_put(tty);
-               return;
-       }
-
        tty_port_free_xmit_buf(&port->port);
-       port->port.flags &= ~ASYNC_INITIALIZED;
-       /* 3rd October 2000 : Vinayak P Risbud */
-       tty_port_tty_set(&port->port, NULL);
-
-       /*Fix done by Anil .S on 30-04-2001
-       remote login through isi port has dtr toggle problem
-       due to which the carrier drops before the password prompt
-       appears on the remote end. Now we drop the dtr only if the
-       HUPCL(Hangup on close) flag is set for the tty*/
-
-       if (C_HUPCL(tty))
-               /* drop dtr on this port */
-               drop_dtr(port);
-
-       /* any other port uninits  */
-       if (tty)
-               set_bit(TTY_IO_ERROR, &tty->flags);
-
        if (--card->count < 0) {
                pr_dbg("isicom_shutdown_port: bad board(0x%lx) count %d.\n",
                        card->base, card->count);
                card->count = 0;
        }
 
-       /* last port was closed, shutdown that boad too */
-       if (C_HUPCL(tty)) {
-               if (!card->count)
-                       isicom_shutdown_board(card);
+       /* last port was closed, shutdown that board too */
+       if (tty && C_HUPCL(tty)) {
+               /* FIXME: this logic is bogus - it's the old logic that was
+                  bogus before but it still wants fixing */
+               if (!card->count) {
+                       if (card->status & BOARD_ACTIVE)
+                               card->status &= ~BOARD_ACTIVE;
+               }
        }
        tty_kref_put(tty);
 }
@@ -968,7 +933,7 @@ static void isicom_flush_buffer(struct tty_struct *tty)
        tty_wakeup(tty);
 }
 
-static void isicom_close_port(struct tty_port *port)
+static void isicom_shutdown(struct tty_port *port)
 {
        struct isi_port *ip = container_of(port, struct isi_port, port);
        struct isi_board *card = ip->card;
@@ -977,10 +942,8 @@ static void isicom_close_port(struct tty_port *port)
        /* indicate to the card that no more data can be received
           on this port */
        spin_lock_irqsave(&card->card_lock, flags);
-       if (port->flags & ASYNC_INITIALIZED) {
-               card->port_status &= ~(1 << ip->channel);
-               outw(card->port_status, card->base + 0x02);
-       }
+       card->port_status &= ~(1 << ip->channel);
+       outw(card->port_status, card->base + 0x02);
        isicom_shutdown_port(ip);
        spin_unlock_irqrestore(&card->card_lock, flags);
 }
@@ -991,12 +954,7 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
        struct tty_port *port = &ip->port;
        if (isicom_paranoia_check(ip, tty->name, "isicom_close"))
                return;
-
-       if (tty_port_close_start(port, tty, filp) == 0)
-               return;
-       isicom_close_port(port);
-       isicom_flush_buffer(tty);
-       tty_port_close_end(port, tty);
+       tty_port_close(port, tty, filp);
 }
 
 /* write et all */
@@ -1326,15 +1284,9 @@ static void isicom_start(struct tty_struct *tty)
 static void isicom_hangup(struct tty_struct *tty)
 {
        struct isi_port *port = tty->driver_data;
-       unsigned long flags;
 
        if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))
                return;
-
-       spin_lock_irqsave(&port->card->card_lock, flags);
-       isicom_shutdown_port(port);
-       spin_unlock_irqrestore(&port->card->card_lock, flags);
-
        tty_port_hangup(&port->port);
 }
 
@@ -1367,6 +1319,8 @@ static const struct tty_operations isicom_ops = {
 static const struct tty_port_operations isicom_port_ops = {
        .carrier_raised         = isicom_carrier_raised,
        .dtr_rts                = isicom_dtr_rts,
+       .activate               = isicom_activate,
+       .shutdown               = isicom_shutdown,
 };
 
 static int __devinit reset_card(struct pci_dev *pdev,