tty: icount changeover for other main devices

Again basically cut and paste

Convert the main driver set to use the hooks for GICOUNT

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

1 files changed, 43 insertions, 29 deletions

diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index d4b71e8d0d23..438272ca9e08 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -183,6 +183,8 @@ static void ip2_hangup(PTTY);
 static int  ip2_tiocmget(struct tty_struct *tty, struct file *file);
 static int  ip2_tiocmset(struct tty_struct *tty, struct file *file,
                          unsigned int set, unsigned int clear);
+static int ip2_get_icount(struct tty_struct *tty,
+                struct serial_icounter_struct *icount);
 
 static void set_irq(int, int);
 static void ip2_interrupt_bh(struct work_struct *work);
@@ -454,6 +456,7 @@ static const struct tty_operations ip2_ops = {
         .hangup          = ip2_hangup,
         .tiocmget        = ip2_tiocmget,
         .tiocmset        = ip2_tiocmset,
+        .get_icount      = ip2_get_icount,
         .proc_fops       = &ip2_proc_fops,
 };
 
@@ -2128,7 +2131,6 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg )
         i2ChanStrPtr pCh = DevTable[tty->index];
         i2eBordStrPtr pB;
         struct async_icount cprev, cnow;        /* kernel counter temps */
-        struct serial_icounter_struct __user *p_cuser;
         int rc = 0;
         unsigned long flags;
         void __user *argp = (void __user *)arg;
@@ -2297,34 +2299,6 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg )
                 break;
 
         /*
-         * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-         * Return: write counters to the user passed counter struct
-         * NB: both 1->0 and 0->1 transitions are counted except for RI where
-         * only 0->1 is counted. The controller is quite capable of counting
-         * both, but this done to preserve compatibility with the standard
-         * serial driver.
-         */
-        case TIOCGICOUNT:
-                ip2trace (CHANN, ITRC_IOCTL, 11, 1, rc );
-
-                write_lock_irqsave(&pB->read_fifo_spinlock, flags);
-                cnow = pCh->icount;
-                write_unlock_irqrestore(&pB->read_fifo_spinlock, flags);
-                p_cuser = argp;
-                rc = put_user(cnow.cts, &p_cuser->cts);
-                rc = put_user(cnow.dsr, &p_cuser->dsr);
-                rc = put_user(cnow.rng, &p_cuser->rng);
-                rc = put_user(cnow.dcd, &p_cuser->dcd);
-                rc = put_user(cnow.rx, &p_cuser->rx);
-                rc = put_user(cnow.tx, &p_cuser->tx);
-                rc = put_user(cnow.frame, &p_cuser->frame);
-                rc = put_user(cnow.overrun, &p_cuser->overrun);
-                rc = put_user(cnow.parity, &p_cuser->parity);
-                rc = put_user(cnow.brk, &p_cuser->brk);
-                rc = put_user(cnow.buf_overrun, &p_cuser->buf_overrun);
-                break;
-
-        /*
          * The rest are not supported by this driver. By returning -ENOIOCTLCMD they
          * will be passed to the line discipline for it to handle.
          */
@@ -2348,6 +2322,46 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg )
         return rc;
 }
 
+static int ip2_get_icount(struct tty_struct *tty,
+                struct serial_icounter_struct *icount)
+{
+        i2ChanStrPtr pCh = DevTable[tty->index];
+        i2eBordStrPtr pB;
+        struct async_icount cnow;       /* kernel counter temp */
+        unsigned long flags;
+
+        if ( pCh == NULL )
+                return -ENODEV;
+
+        pB = pCh->pMyBord;
+
+        /*
+         * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
+         * Return: write counters to the user passed counter struct
+         * NB: both 1->0 and 0->1 transitions are counted except for RI where
+         * only 0->1 is counted. The controller is quite capable of counting
+         * both, but this done to preserve compatibility with the standard
+         * serial driver.
+         */
+
+        write_lock_irqsave(&pB->read_fifo_spinlock, flags);
+        cnow = pCh->icount;
+        write_unlock_irqrestore(&pB->read_fifo_spinlock, 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;
+        return 0;
+}
+
 /******************************************************************************/
 /* Function:   GetSerialInfo()                                                */
 /* Parameters: Pointer to channel structure                                   */