From: bart.hartgers@gmail.com Date: Wed, 28 Oct 2009 09:43:27 +0000 (+0100) Subject: USB: ark3116: Replace cmget X-Git-Tag: v2.6.33-rc1~315^2~67 X-Git-Url: http://ftp.safe.ca/?a=commitdiff_plain;h=1f719105131010cdb9a4b5a3bace21f6b2e095ea;p=safe%2Fjmp%2Flinux-2.6 USB: ark3116: Replace cmget Signed-off-by: Bart Hartgers Cc: Mike McCormack Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index d12df94..d8f0267 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 = {