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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 <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2013-03-21 12:37:27 +01:00 committed by Greg Kroah-Hartman
parent 2d816ac6f5
commit 8413d2fd80
1 changed files with 28 additions and 26 deletions
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54
drivers/usb/serial/spcp8x5.c
View File

@ -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)