summaryrefslogtreecommitdiff
path: root/drivers/usb/serial/mct_u232.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 13:23:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 13:23:01 -0700
commitd9a807461fc8cc0d6ba589ea0730d139122af012 (patch)
tree9d8c7a044659d821748dd40718a22557c04e4299 /drivers/usb/serial/mct_u232.c
parent3498d13b8090c0b0ef911409fbc503a7c4cca6ef (diff)
parent70c048a238c780c226eb4b115ebaa908cb3b34ec (diff)
Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB changes from Greg Kroah-Hartman: "Here is the big USB pull request for 3.7-rc1 There are lots of gadget driver changes (including copying a bunch of files into the drivers/staging/ccg/ directory so that the other gadget drivers can be fixed up properly without breaking that driver), and we remove the old obsolete ub.c driver from the tree. There are also the usual XHCI set of updates, and other various driver changes and updates. We also are trying hard to remove the old dbg() macro, but the final bits of that removal will be coming in through the networking tree before we can delete it for good. All of these patches have been in the linux-next tree. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up several annoying - but fairly mindless - conflicts due to the termios structure having moved into the tty device, and often clashing with dbg -> dev_dbg conversion. * tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (339 commits) USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc USB: uas: fix gcc warning USB: uas: fix locking USB: Fix race condition when removing host controllers USB: uas: add locking USB: uas: fix abort USB: uas: remove aborted field, replace with status bit. USB: uas: fix task management USB: uas: keep track of command urbs xhci: Intel Panther Point BEI quirk. powerpc/usb: remove checking PHY_CLK_VALID for UTMI PHY USB: ftdi_sio: add TIAO USB Multi-Protocol Adapter (TUMPA) support Revert "usb : Add sysfs files to control port power." USB: serial: remove vizzini driver usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems Increase XHCI suspend timeout to 16ms USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq USB: sierra_ms: don't keep unused variable fsl/usb: Add support for USB controller version 2.4 USB: qcaux: add Pantech vendor class match ...
Diffstat (limited to 'drivers/usb/serial/mct_u232.c')
-rw-r--r--drivers/usb/serial/mct_u232.c104
1 files changed, 44 insertions, 60 deletions
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index df98cffdba65..f3947712e137 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -45,8 +45,6 @@
#define DRIVER_AUTHOR "Wolfgang Grandegger <wolfgang@ces.ch>"
#define DRIVER_DESC "Magic Control Technology USB-RS232 converter driver"
-static bool debug;
-
/*
* Function prototypes
*/
@@ -214,7 +212,7 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
value, rc);
else
tty_encode_baud_rate(tty, speed, speed);
- dbg("set_baud_rate: value: 0x%x, divisor: 0x%x", value, divisor);
+ dev_dbg(&port->dev, "set_baud_rate: value: 0x%x, divisor: 0x%x\n", value, divisor);
/* Mimic the MCT-supplied Windows driver (version 1.21P.0104), which
always sends two extra USB 'device request' messages after the
@@ -247,8 +245,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
if (port && C_CRTSCTS(tty))
cts_enable_byte = 1;
- dbg("set_baud_rate: send second control message, data = %02X",
- cts_enable_byte);
+ dev_dbg(&port->dev, "set_baud_rate: send second control message, data = %02X\n",
+ cts_enable_byte);
buf[0] = cts_enable_byte;
rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
MCT_U232_SET_CTS_REQUEST,
@@ -263,7 +261,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
return rc;
} /* mct_u232_set_baud_rate */
-static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr)
+static int mct_u232_set_line_ctrl(struct usb_serial_port *port,
+ unsigned char lcr)
{
int rc;
unsigned char *buf;
@@ -273,20 +272,19 @@ static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr)
return -ENOMEM;
buf[0] = lcr;
- rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ rc = usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
MCT_U232_SET_LINE_CTRL_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
0, 0, buf, MCT_U232_SET_LINE_CTRL_SIZE,
WDR_TIMEOUT);
if (rc < 0)
- dev_err(&serial->dev->dev,
- "Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc);
- dbg("set_line_ctrl: 0x%x", lcr);
+ dev_err(&port->dev, "Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc);
+ dev_dbg(&port->dev, "set_line_ctrl: 0x%x\n", lcr);
kfree(buf);
return rc;
} /* mct_u232_set_line_ctrl */
-static int mct_u232_set_modem_ctrl(struct usb_serial *serial,
+static int mct_u232_set_modem_ctrl(struct usb_serial_port *port,
unsigned int control_state)
{
int rc;
@@ -304,25 +302,24 @@ static int mct_u232_set_modem_ctrl(struct usb_serial *serial,
mcr |= MCT_U232_MCR_RTS;
buf[0] = mcr;
- rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ rc = usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
MCT_U232_SET_MODEM_CTRL_REQUEST,
MCT_U232_SET_REQUEST_TYPE,
0, 0, buf, MCT_U232_SET_MODEM_CTRL_SIZE,
WDR_TIMEOUT);
kfree(buf);
- dbg("set_modem_ctrl: state=0x%x ==> mcr=0x%x", control_state, mcr);
+ dev_dbg(&port->dev, "set_modem_ctrl: state=0x%x ==> mcr=0x%x\n", control_state, mcr);
if (rc < 0) {
- dev_err(&serial->dev->dev,
- "Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc);
+ dev_err(&port->dev, "Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc);
return rc;
}
return 0;
} /* mct_u232_set_modem_ctrl */
-static int mct_u232_get_modem_stat(struct usb_serial *serial,
- unsigned char *msr)
+static int mct_u232_get_modem_stat(struct usb_serial_port *port,
+ unsigned char *msr)
{
int rc;
unsigned char *buf;
@@ -332,19 +329,18 @@ static int mct_u232_get_modem_stat(struct usb_serial *serial,
*msr = 0;
return -ENOMEM;
}
- rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ rc = usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0),
MCT_U232_GET_MODEM_STAT_REQUEST,
MCT_U232_GET_REQUEST_TYPE,
0, 0, buf, MCT_U232_GET_MODEM_STAT_SIZE,
WDR_TIMEOUT);
if (rc < 0) {
- dev_err(&serial->dev->dev,
- "Get MODEM STATus failed (error = %d)\n", rc);
+ dev_err(&port->dev, "Get MODEM STATus failed (error = %d)\n", rc);
*msr = 0;
} else {
*msr = buf[0];
}
- dbg("get_modem_stat: 0x%x", *msr);
+ dev_dbg(&port->dev, "get_modem_stat: 0x%x\n", *msr);
kfree(buf);
return rc;
} /* mct_u232_get_modem_stat */
@@ -363,8 +359,8 @@ static void mct_u232_msr_to_icount(struct async_icount *icount,
icount->dcd++;
} /* mct_u232_msr_to_icount */
-static void mct_u232_msr_to_state(unsigned int *control_state,
- unsigned char msr)
+static void mct_u232_msr_to_state(struct usb_serial_port *port,
+ unsigned int *control_state, unsigned char msr)
{
/* Translate Control Line states */
if (msr & MCT_U232_MSR_DSR)
@@ -383,7 +379,7 @@ static void mct_u232_msr_to_state(unsigned int *control_state,
*control_state |= TIOCM_CD;
else
*control_state &= ~TIOCM_CD;
- dbg("msr_to_state: msr=0x%x ==> state=0x%x", msr, *control_state);
+ dev_dbg(&port->dev, "msr_to_state: msr=0x%x ==> state=0x%x\n", msr, *control_state);
} /* mct_u232_msr_to_state */
/*
@@ -465,14 +461,14 @@ static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port)
control_state = priv->control_state;
last_lcr = priv->last_lcr;
spin_unlock_irqrestore(&priv->lock, flags);
- mct_u232_set_modem_ctrl(serial, control_state);
- mct_u232_set_line_ctrl(serial, last_lcr);
+ mct_u232_set_modem_ctrl(port, control_state);
+ mct_u232_set_line_ctrl(port, last_lcr);
/* Read modem status and update control state */
- mct_u232_get_modem_stat(serial, &last_msr);
+ mct_u232_get_modem_stat(port, &last_msr);
spin_lock_irqsave(&priv->lock, flags);
priv->last_msr = last_msr;
- mct_u232_msr_to_state(&priv->control_state, priv->last_msr);
+ mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr);
spin_unlock_irqrestore(&priv->lock, flags);
retval = usb_submit_urb(port->read_urb, GFP_KERNEL);
@@ -512,7 +508,7 @@ static void mct_u232_dtr_rts(struct usb_serial_port *port, int on)
priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
control_state = priv->control_state;
spin_unlock_irq(&priv->lock);
- mct_u232_set_modem_ctrl(port->serial, control_state);
+ mct_u232_set_modem_ctrl(port, control_state);
}
mutex_unlock(&port->serial->disc_mutex);
}
@@ -532,7 +528,6 @@ static void mct_u232_read_int_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
- struct usb_serial *serial = port->serial;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
int retval;
@@ -547,22 +542,16 @@ static void mct_u232_read_int_callback(struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __func__, status);
+ dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
+ __func__, status);
return;
default:
- dbg("%s - nonzero urb status received: %d",
- __func__, status);
+ dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
+ __func__, status);
goto exit;
}
- if (!serial) {
- dbg("%s - bad serial pointer, exiting", __func__);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
+ usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
/*
* Work-a-round: handle the 'usual' bulk-in pipe here
@@ -588,7 +577,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
priv->last_msr = data[MCT_U232_MSR_INDEX];
/* Record Control Line states */
- mct_u232_msr_to_state(&priv->control_state, priv->last_msr);
+ mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr);
mct_u232_msr_to_icount(&priv->icount, priv->last_msr);
@@ -656,18 +645,18 @@ static void mct_u232_set_termios(struct tty_struct *tty,
/* reassert DTR and RTS on transition from B0 */
if ((old_cflag & CBAUD) == B0) {
- dbg("%s: baud was B0", __func__);
+ dev_dbg(&port->dev, "%s: baud was B0\n", __func__);
control_state |= TIOCM_DTR | TIOCM_RTS;
- mct_u232_set_modem_ctrl(serial, control_state);
+ mct_u232_set_modem_ctrl(port, control_state);
}
mct_u232_set_baud_rate(tty, serial, port, tty_get_baud_rate(tty));
if ((cflag & CBAUD) == B0) {
- dbg("%s: baud is B0", __func__);
+ dev_dbg(&port->dev, "%s: baud is B0\n", __func__);
/* Drop RTS and DTR */
control_state &= ~(TIOCM_DTR | TIOCM_RTS);
- mct_u232_set_modem_ctrl(serial, control_state);
+ mct_u232_set_modem_ctrl(port, control_state);
}
/*
@@ -704,7 +693,7 @@ static void mct_u232_set_termios(struct tty_struct *tty,
last_lcr |= (cflag & CSTOPB) ?
MCT_U232_STOP_BITS_2 : MCT_U232_STOP_BITS_1;
- mct_u232_set_line_ctrl(serial, last_lcr);
+ mct_u232_set_line_ctrl(port, last_lcr);
/* save off the modified port settings */
spin_lock_irqsave(&priv->lock, flags);
@@ -716,7 +705,6 @@ static void mct_u232_set_termios(struct tty_struct *tty,
static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
- struct usb_serial *serial = port->serial;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
unsigned char lcr;
unsigned long flags;
@@ -728,7 +716,7 @@ static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
lcr |= MCT_U232_SET_BREAK;
spin_unlock_irqrestore(&priv->lock, flags);
- mct_u232_set_line_ctrl(serial, lcr);
+ mct_u232_set_line_ctrl(port, lcr);
} /* mct_u232_break_ctl */
@@ -750,7 +738,6 @@ static int mct_u232_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
- struct usb_serial *serial = port->serial;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
unsigned int control_state;
unsigned long flags;
@@ -769,7 +756,7 @@ static int mct_u232_tiocmset(struct tty_struct *tty,
priv->control_state = control_state;
spin_unlock_irqrestore(&priv->lock, flags);
- return mct_u232_set_modem_ctrl(serial, control_state);
+ return mct_u232_set_modem_ctrl(port, control_state);
}
static void mct_u232_throttle(struct tty_struct *tty)
@@ -784,7 +771,7 @@ static void mct_u232_throttle(struct tty_struct *tty)
priv->control_state &= ~TIOCM_RTS;
control_state = priv->control_state;
spin_unlock_irq(&priv->lock);
- (void) mct_u232_set_modem_ctrl(port->serial, control_state);
+ mct_u232_set_modem_ctrl(port, control_state);
} else {
spin_unlock_irq(&priv->lock);
}
@@ -802,7 +789,7 @@ static void mct_u232_unthrottle(struct tty_struct *tty)
priv->control_state |= TIOCM_RTS;
control_state = priv->control_state;
spin_unlock_irq(&priv->lock);
- (void) mct_u232_set_modem_ctrl(port->serial, control_state);
+ mct_u232_set_modem_ctrl(port, control_state);
} else {
spin_unlock_irq(&priv->lock);
}
@@ -817,13 +804,13 @@ static int mct_u232_ioctl(struct tty_struct *tty,
struct async_icount cnow, cprev;
unsigned long flags;
- dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+ dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
switch (cmd) {
case TIOCMIWAIT:
- dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
+ dev_dbg(&port->dev, "%s TIOCMIWAIT", __func__);
spin_lock_irqsave(&mct_u232_port->lock, flags);
cprev = mct_u232_port->icount;
@@ -879,8 +866,8 @@ static int mct_u232_get_icount(struct tty_struct *tty,
spin_unlock_irqrestore(&mct_u232_port->lock, flags);
- dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
- __func__, port->number, icount->rx, icount->tx);
+ dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n",
+ __func__, icount->rx, icount->tx);
return 0;
}
@@ -889,6 +876,3 @@ module_usb_serial_driver(serial_drivers, id_table);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");