diff options
| author | bart.hartgers@gmail.com <bart.hartgers@gmail.com> | 2009-10-28 10:43:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 11:55:21 -0800 |
| commit | 1f719105131010cdb9a4b5a3bace21f6b2e095ea (patch) | |
| tree | 20c0f5be3b92da6b8e974147a11af3940c7a4385 /drivers/usb/serial/ark3116.c | |
| parent | f4c1e8d597d1a440175db0d709c921cf3a49cfe7 (diff) | |
| download | linux-1f719105131010cdb9a4b5a3bace21f6b2e095ea.tar.bz2 | |
USB: ark3116: Replace cmget
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Cc: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/ark3116.c')
| -rw-r--r-- | drivers/usb/serial/ark3116.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index d12df9484677..d8f0267a2d56 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -528,32 +528,27 @@ static int ark3116_ioctl(struct tty_struct *tty, struct file *file, static int ark3116_tiocmget(struct tty_struct *tty, struct file *file) { struct usb_serial_port *port = tty->driver_data; - struct usb_serial *serial = port->serial; - char *buf; - char temp; - - /* seems like serial port status info (RTS, CTS, ...) is stored - * in reg(?) 0x0006 - * pcb connection point 11 = GND -> sets bit4 of response - * pcb connection point 7 = GND -> sets bit6 of response - */ - - buf = kmalloc(1, GFP_KERNEL); - if (!buf) { - dbg("error kmalloc"); - return -ENOMEM; - } + struct ark3116_private *priv = usb_get_serial_port_data(port); + __u32 status; + __u32 ctrl; + unsigned long flags; - /* read register */ - ARK3116_RCV_QUIET(serial, 0xFE, 0xC0, 0x0000, 0x0006, buf); - temp = buf[0]; - kfree(buf); + mutex_lock(&priv->hw_lock); + ctrl = priv->mcr; + mutex_unlock(&priv->hw_lock); - /* i do not really know if bit4=CTS and bit6=DSR... just a - * quick guess! - */ - return (temp & (1<<4) ? TIOCM_CTS : 0) - | (temp & (1<<6) ? TIOCM_DSR : 0); + spin_lock_irqsave(&priv->status_lock, flags); + status = priv->msr; + spin_unlock_irqrestore(&priv->status_lock, flags); + + return (status & UART_MSR_DSR ? TIOCM_DSR : 0) | + (status & UART_MSR_CTS ? TIOCM_CTS : 0) | + (status & UART_MSR_RI ? TIOCM_RI : 0) | + (status & UART_MSR_DCD ? TIOCM_CD : 0) | + (ctrl & UART_MCR_DTR ? TIOCM_DTR : 0) | + (ctrl & UART_MCR_RTS ? TIOCM_RTS : 0) | + (ctrl & UART_MCR_OUT1 ? TIOCM_OUT1 : 0) | + (ctrl & UART_MCR_OUT2 ? TIOCM_OUT2 : 0); } static struct usb_driver ark3116_driver = { |