diff options
Diffstat (limited to 'drivers/char/synclinkmp.c')
-rw-r--r-- | drivers/char/synclinkmp.c | 61 |
1 files changed, 28 insertions, 33 deletions
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index e56caf7d82aa..2f9eb4b0dec1 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -1258,10 +1258,6 @@ static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { SLMP_INFO *info = tty->driver_data; - int error; - struct mgsl_icount cnow; /* kernel counter temps */ - struct serial_icounter_struct __user *p_cuser; /* user space */ - unsigned long flags; void __user *argp = (void __user *)arg; if (debug_level >= DEBUG_LEVEL_INFO) @@ -1272,7 +1268,7 @@ static int ioctl(struct tty_struct *tty, struct file *file, return -ENODEV; if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -1310,40 +1306,38 @@ static int ioctl(struct tty_struct *tty, struct file *file, * NB: both 1->0 and 0->1 transitions are counted except for * RI where only 0->1 is counted. */ - case TIOCGICOUNT: - spin_lock_irqsave(&info->lock,flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->lock,flags); - p_cuser = argp; - PUT_USER(error,cnow.cts, &p_cuser->cts); - if (error) return error; - PUT_USER(error,cnow.dsr, &p_cuser->dsr); - if (error) return error; - PUT_USER(error,cnow.rng, &p_cuser->rng); - if (error) return error; - PUT_USER(error,cnow.dcd, &p_cuser->dcd); - if (error) return error; - PUT_USER(error,cnow.rx, &p_cuser->rx); - if (error) return error; - PUT_USER(error,cnow.tx, &p_cuser->tx); - if (error) return error; - PUT_USER(error,cnow.frame, &p_cuser->frame); - if (error) return error; - PUT_USER(error,cnow.overrun, &p_cuser->overrun); - if (error) return error; - PUT_USER(error,cnow.parity, &p_cuser->parity); - if (error) return error; - PUT_USER(error,cnow.brk, &p_cuser->brk); - if (error) return error; - PUT_USER(error,cnow.buf_overrun, &p_cuser->buf_overrun); - if (error) return error; - return 0; default: return -ENOIOCTLCMD; } return 0; } +static int get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + SLMP_INFO *info = tty->driver_data; + struct mgsl_icount cnow; /* kernel counter temps */ + unsigned long flags; + + spin_lock_irqsave(&info->lock,flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->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; + + return 0; +} + /* * /proc fs routines.... */ @@ -3909,6 +3903,7 @@ static const struct tty_operations ops = { .hangup = hangup, .tiocmget = tiocmget, .tiocmset = tiocmset, + .get_icount = get_icount, .proc_fops = &synclinkmp_proc_fops, }; |