From 8413d2fd80a8e1f09a37c371610a89618980b08f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 21 Mar 2013 12:37:27 +0100 Subject: [PATCH] USB: spcp8x5: pass usb-serial port to control functions Pass usb-serial port to the control functions for uart status and work mode. Use port device for debugging and use dev_err to report errors. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/spcp8x5.c | 54 +++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 26 deletions(-) diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index a5c3a3684dc..5779dd819d3 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -198,21 +198,22 @@ static int spcp8x5_port_remove(struct usb_serial_port *port) * * NOTE: not supported by spcp825-007 */ -static int spcp8x5_set_ctrl_line(struct usb_device *dev, u8 value, - enum spcp8x5_type type) +static int spcp8x5_set_ctrl_line(struct usb_serial_port *port, u8 mcr) { + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; int retval; - u8 mcr = 0; - if (type == SPCP825_007_TYPE) + if (priv->type == SPCP825_007_TYPE) return -EPERM; - mcr = (unsigned short)value; retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_UART_STATUS_TYPE, SET_UART_STATUS, mcr, 0x04, NULL, 0, 100); - if (retval != 0) - dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); + if (retval != 0) { + dev_err(&port->dev, "failed to set control lines: %d\n", + retval); + } return retval; } @@ -221,15 +222,16 @@ static int spcp8x5_set_ctrl_line(struct usb_device *dev, u8 value, * * NOTE: not supported by spcp825-007 */ -static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, - enum spcp8x5_type type) +static int spcp8x5_get_msr(struct usb_serial_port *port, u8 *status) { + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; u8 *status_buffer; int ret; /* I return Permited not support here but seem inval device * is more fix */ - if (type == SPCP825_007_TYPE) + if (priv->type == SPCP825_007_TYPE) return -EPERM; if (status == NULL) return -EINVAL; @@ -243,10 +245,10 @@ static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, GET_UART_STATUS, GET_UART_STATUS_TYPE, 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); if (ret < 0) - dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", - status_buffer, ret); + dev_err(&port->dev, "failed to get modem status: %d", ret); + + dev_dbg(&port->dev, "0xc0:0x22:0:6 %d - 0x02%x", ret, *status_buffer); - dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); status[0] = status_buffer[0]; kfree(status_buffer); @@ -258,23 +260,24 @@ static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, * * NOTE: not supported by spcp825-007 */ -static void spcp8x5_set_work_mode(struct usb_device *dev, u16 value, - u16 index, enum spcp8x5_type type) +static void spcp8x5_set_work_mode(struct usb_serial_port *port, u16 value, + u16 index) { + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; int ret; /* I return Permited not support here but seem inval device * is more fix */ - if (type == SPCP825_007_TYPE) + if (priv->type == SPCP825_007_TYPE) return; ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_WORKING_MODE_TYPE, SET_WORKING_MODE, value, index, NULL, 0, 100); - dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); + dev_dbg(&port->dev, "value = %#x , index = %#x\n", value, index); if (ret < 0) - dev_dbg(&dev->dev, - "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); + dev_err(&port->dev, "failed to set work mode: %d\n", ret); } static int spcp8x5_carrier_raised(struct usb_serial_port *port) @@ -302,7 +305,7 @@ static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) | MCR_CONTROL_LINE_RTS); control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrl_line(port->serial->dev, control, priv->type); + spcp8x5_set_ctrl_line(port, control); } static void spcp8x5_init_termios(struct tty_struct *tty) @@ -342,7 +345,7 @@ static void spcp8x5_set_termios(struct tty_struct *tty, if (control != priv->line_control) { control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrl_line(serial->dev, control , priv->type); + spcp8x5_set_ctrl_line(port, control); } else { spin_unlock_irqrestore(&priv->lock, flags); } @@ -417,8 +420,7 @@ static void spcp8x5_set_termios(struct tty_struct *tty, if (cflag & CRTSCTS) { /* enable hardware flow control */ - spcp8x5_set_work_mode(serial->dev, 0x000a, - SET_WORKING_MODE_U2C, priv->type); + spcp8x5_set_work_mode(port, 0x000a, SET_WORKING_MODE_U2C); } } @@ -441,13 +443,13 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) if (ret) return ret; - spcp8x5_set_ctrl_line(serial->dev, priv->line_control, priv->type); + spcp8x5_set_ctrl_line(port, priv->line_control); /* Setup termios */ if (tty) spcp8x5_set_termios(tty, port, &tmp_termios); - spcp8x5_get_msr(serial->dev, &status, priv->type); + spcp8x5_get_msr(port, &status); /* may be we should update uart status here but now we did not do */ spin_lock_irqsave(&priv->lock, flags); @@ -479,7 +481,7 @@ static int spcp8x5_tiocmset(struct tty_struct *tty, control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - return spcp8x5_set_ctrl_line(port->serial->dev, control, priv->type); + return spcp8x5_set_ctrl_line(port, control); } static int spcp8x5_tiocmget(struct tty_struct *tty) -- 2.46.0