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Commit 1f719105 authored by bart.hartgers@gmail.com's avatar bart.hartgers@gmail.com Committed by Greg Kroah-Hartman
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USB: ark3116: Replace cmget 



Signed-off-by: default avatarBart Hartgers <bart.hartgers@gmail.com>
Cc: Mike McCormack <mikem@ring3k.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent f4c1e8d5

drivers/usb/serial/ark3116.c

+19 −24
Original line number Diff line number Diff line
@@ -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 = {