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path: root/drivers/usb/serial/cypress_m8.c
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Diffstat (limited to 'drivers/usb/serial/cypress_m8.c')
-rw-r--r--drivers/usb/serial/cypress_m8.c157
1 files changed, 76 insertions, 81 deletions
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index be34f153e566..1befce21e173 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -46,7 +46,6 @@
#include "cypress_m8.h"
-static bool debug;
static bool stats;
static int interval;
static bool unstable_bauds;
@@ -263,8 +262,9 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
* safest speed for a part like that.
*/
if (new_rate > 4800) {
- dbg("%s - failed setting baud rate, device incapable "
- "speed %d", __func__, new_rate);
+ dev_dbg(&port->dev,
+ "%s - failed setting baud rate, device incapable speed %d\n",
+ __func__, new_rate);
return -1;
}
}
@@ -274,8 +274,9 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
/* 300 and 600 baud rates are supported under
* the generic firmware, but are not used with
* NMEA and SiRF protocols */
- dbg("%s - failed setting baud rate, unsupported speed "
- "of %d on Earthmate GPS", __func__, new_rate);
+ dev_dbg(&port->dev,
+ "%s - failed setting baud rate, unsupported speed of %d on Earthmate GPS",
+ __func__, new_rate);
return -1;
}
break;
@@ -294,6 +295,7 @@ static int cypress_serial_control(struct tty_struct *tty,
{
int new_baudrate = 0, retval = 0, tries = 0;
struct cypress_private *priv;
+ struct device *dev = &port->dev;
u8 *feature_buffer;
const unsigned int feature_len = 5;
unsigned long flags;
@@ -312,16 +314,16 @@ static int cypress_serial_control(struct tty_struct *tty,
/* 0 means 'Hang up' so doesn't change the true bit rate */
new_baudrate = priv->baud_rate;
if (baud_rate && baud_rate != priv->baud_rate) {
- dbg("%s - baud rate is changing", __func__);
+ dev_dbg(dev, "%s - baud rate is changing\n", __func__);
retval = analyze_baud_rate(port, baud_rate);
if (retval >= 0) {
new_baudrate = retval;
- dbg("%s - New baud rate set to %d",
- __func__, new_baudrate);
+ dev_dbg(dev, "%s - New baud rate set to %d\n",
+ __func__, new_baudrate);
}
}
- dbg("%s - baud rate is being sent as %d",
- __func__, new_baudrate);
+ dev_dbg(dev, "%s - baud rate is being sent as %d\n", __func__,
+ new_baudrate);
/* fill the feature_buffer with new configuration */
put_unaligned_le32(new_baudrate, feature_buffer);
@@ -333,9 +335,8 @@ static int cypress_serial_control(struct tty_struct *tty,
/* 1 bit gap */
feature_buffer[4] |= (reset << 7); /* assign reset at end of byte, 1 bit space */
- dbg("%s - device is being sent this feature report:",
- __func__);
- dbg("%s - %02X - %02X - %02X - %02X - %02X", __func__,
+ dev_dbg(dev, "%s - device is being sent this feature report:\n", __func__);
+ dev_dbg(dev, "%s - %02X - %02X - %02X - %02X - %02X\n", __func__,
feature_buffer[0], feature_buffer[1],
feature_buffer[2], feature_buffer[3],
feature_buffer[4]);
@@ -355,8 +356,8 @@ static int cypress_serial_control(struct tty_struct *tty,
retval != -ENODEV);
if (retval != feature_len) {
- dev_err(&port->dev, "%s - failed sending serial "
- "line settings - %d\n", __func__, retval);
+ dev_err(dev, "%s - failed sending serial line settings - %d\n",
+ __func__, retval);
cypress_set_dead(port);
} else {
spin_lock_irqsave(&priv->lock, flags);
@@ -377,7 +378,7 @@ static int cypress_serial_control(struct tty_struct *tty,
retval = -ENOTTY;
goto out;
}
- dbg("%s - retreiving serial line settings", __func__);
+ dev_dbg(dev, "%s - retreiving serial line settings\n", __func__);
do {
retval = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
@@ -392,8 +393,8 @@ static int cypress_serial_control(struct tty_struct *tty,
&& retval != -ENODEV);
if (retval != feature_len) {
- dev_err(&port->dev, "%s - failed to retrieve serial "
- "line settings - %d\n", __func__, retval);
+ dev_err(dev, "%s - failed to retrieve serial line settings - %d\n",
+ __func__, retval);
cypress_set_dead(port);
goto out;
} else {
@@ -474,14 +475,14 @@ static int generic_startup(struct usb_serial *serial)
if (interval > 0) {
priv->write_urb_interval = interval;
priv->read_urb_interval = interval;
- dbg("%s - port %d read & write intervals forced to %d",
- __func__, port->number, interval);
+ dev_dbg(&port->dev, "%s - read & write intervals forced to %d\n",
+ __func__, interval);
} else {
priv->write_urb_interval = port->interrupt_out_urb->interval;
priv->read_urb_interval = port->interrupt_in_urb->interval;
- dbg("%s - port %d intervals: read=%d write=%d",
- __func__, port->number,
- priv->read_urb_interval, priv->write_urb_interval);
+ dev_dbg(&port->dev, "%s - intervals: read=%d write=%d\n",
+ __func__, priv->read_urb_interval,
+ priv->write_urb_interval);
}
usb_set_serial_port_data(port, priv);
@@ -495,8 +496,7 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
struct usb_serial_port *port = serial->port[0];
if (generic_startup(serial)) {
- dbg("%s - Failed setting up port %d", __func__,
- port->number);
+ dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
return 1;
}
@@ -511,8 +511,9 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
handle GET_CONFIG requests; everything they've
produced since that time crashes if this command is
attempted :-( */
- dbg("%s - Marking this device as unsafe for GET_CONFIG "
- "commands", __func__);
+ dev_dbg(&port->dev,
+ "%s - Marking this device as unsafe for GET_CONFIG commands\n",
+ __func__);
priv->get_cfg_unsafe = !0;
}
@@ -523,14 +524,14 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
static int cypress_hidcom_startup(struct usb_serial *serial)
{
struct cypress_private *priv;
+ struct usb_serial_port *port = serial->port[0];
if (generic_startup(serial)) {
- dbg("%s - Failed setting up port %d", __func__,
- serial->port[0]->number);
+ dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
return 1;
}
- priv = usb_get_serial_port_data(serial->port[0]);
+ priv = usb_get_serial_port_data(port);
priv->chiptype = CT_CYPHIDCOM;
return 0;
@@ -540,14 +541,14 @@ static int cypress_hidcom_startup(struct usb_serial *serial)
static int cypress_ca42v2_startup(struct usb_serial *serial)
{
struct cypress_private *priv;
+ struct usb_serial_port *port = serial->port[0];
if (generic_startup(serial)) {
- dbg("%s - Failed setting up port %d", __func__,
- serial->port[0]->number);
+ dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
return 1;
}
- priv = usb_get_serial_port_data(serial->port[0]);
+ priv = usb_get_serial_port_data(port);
priv->chiptype = CT_CA42V2;
return 0;
@@ -649,7 +650,7 @@ static void cypress_close(struct usb_serial_port *port)
kfifo_reset_out(&priv->write_fifo);
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - stopping urbs", __func__);
+ dev_dbg(&port->dev, "%s - stopping urbs\n", __func__);
usb_kill_urb(port->interrupt_in_urb);
usb_kill_urb(port->interrupt_out_urb);
@@ -665,7 +666,7 @@ static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port,
{
struct cypress_private *priv = usb_get_serial_port_data(port);
- dbg("%s - port %d, %d bytes", __func__, port->number, count);
+ dev_dbg(&port->dev, "%s - port %d, %d bytes\n", __func__, port->number, count);
/* line control commands, which need to be executed immediately,
are not put into the buffer for obvious reasons.
@@ -691,17 +692,18 @@ static void cypress_send(struct usb_serial_port *port)
{
int count = 0, result, offset, actual_size;
struct cypress_private *priv = usb_get_serial_port_data(port);
+ struct device *dev = &port->dev;
unsigned long flags;
if (!priv->comm_is_ok)
return;
- dbg("%s - interrupt out size is %d", __func__,
- port->interrupt_out_size);
+ dev_dbg(dev, "%s - interrupt out size is %d\n", __func__,
+ port->interrupt_out_size);
spin_lock_irqsave(&priv->lock, flags);
if (priv->write_urb_in_use) {
- dbg("%s - can't write, urb in use", __func__);
+ dev_dbg(dev, "%s - can't write, urb in use\n", __func__);
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
@@ -731,7 +733,7 @@ static void cypress_send(struct usb_serial_port *port)
if (priv->cmd_ctrl) {
priv->cmd_count++;
- dbg("%s - line control command being issued", __func__);
+ dev_dbg(dev, "%s - line control command being issued\n", __func__);
spin_unlock_irqrestore(&priv->lock, flags);
goto send;
} else
@@ -753,7 +755,7 @@ static void cypress_send(struct usb_serial_port *port)
port->interrupt_out_buffer[0] |= count;
}
- dbg("%s - count is %d", __func__, count);
+ dev_dbg(dev, "%s - count is %d\n", __func__, count);
send:
spin_lock_irqsave(&priv->lock, flags);
@@ -766,9 +768,8 @@ send:
actual_size = count +
(priv->pkt_fmt == packet_format_1 ? 2 : 1);
- usb_serial_debug_data(debug, &port->dev, __func__,
- port->interrupt_out_size,
- port->interrupt_out_urb->transfer_buffer);
+ usb_serial_debug_data(dev, __func__, port->interrupt_out_size,
+ port->interrupt_out_urb->transfer_buffer);
usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
@@ -807,7 +808,7 @@ static int cypress_write_room(struct tty_struct *tty)
room = kfifo_avail(&priv->write_fifo);
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - returns %d", __func__, room);
+ dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
return room;
}
@@ -832,7 +833,7 @@ static int cypress_tiocmget(struct tty_struct *tty)
| ((status & UART_RI) ? TIOCM_RI : 0)
| ((status & UART_CD) ? TIOCM_CD : 0);
- dbg("%s - result = %x", __func__, result);
+ dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);
return result;
}
@@ -867,7 +868,7 @@ static int cypress_ioctl(struct tty_struct *tty,
struct usb_serial_port *port = tty->driver_data;
struct cypress_private *priv = usb_get_serial_port_data(port);
- dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
+ dev_dbg(&port->dev, "%s - port %d, cmd 0x%.4x\n", __func__, port->number, cmd);
switch (cmd) {
/* This code comes from drivers/char/serial.c and ftdi_sio.c */
@@ -902,7 +903,7 @@ static int cypress_ioctl(struct tty_struct *tty,
default:
break;
}
- dbg("%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h", __func__, cmd);
+ dev_dbg(&port->dev, "%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h\n", __func__, cmd);
return -ENOIOCTLCMD;
} /* cypress_ioctl */
@@ -911,6 +912,7 @@ static void cypress_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
+ struct device *dev = &port->dev;
int data_bits, stop_bits, parity_type, parity_enable;
unsigned cflag, iflag;
unsigned long flags;
@@ -984,23 +986,21 @@ static void cypress_set_termios(struct tty_struct *tty,
data_bits = 3;
break;
default:
- dev_err(&port->dev, "%s - CSIZE was set, but not CS5-CS8\n",
- __func__);
+ dev_err(dev, "%s - CSIZE was set, but not CS5-CS8\n", __func__);
data_bits = 3;
}
spin_lock_irqsave(&priv->lock, flags);
oldlines = priv->line_control;
if ((cflag & CBAUD) == B0) {
/* drop dtr and rts */
- dbg("%s - dropping the lines, baud rate 0bps", __func__);
+ dev_dbg(dev, "%s - dropping the lines, baud rate 0bps\n", __func__);
priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
} else
priv->line_control = (CONTROL_DTR | CONTROL_RTS);
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - sending %d stop_bits, %d parity_enable, %d parity_type, "
- "%d data_bits (+5)", __func__, stop_bits,
- parity_enable, parity_type, data_bits);
+ dev_dbg(dev, "%s - sending %d stop_bits, %d parity_enable, %d parity_type, %d data_bits (+5)\n",
+ __func__, stop_bits, parity_enable, parity_type, data_bits);
cypress_serial_control(tty, port, tty_get_baud_rate(tty),
data_bits, stop_bits,
@@ -1017,8 +1017,7 @@ static void cypress_set_termios(struct tty_struct *tty,
spin_lock_irqsave(&priv->lock, flags);
if (priv->chiptype == CT_EARTHMATE && priv->baud_rate == 4800) {
- dbg("Using custom termios settings for a baud rate of "
- "4800bps.");
+ dev_dbg(dev, "Using custom termios settings for a baud rate of 4800bps.\n");
/* define custom termios settings for NMEA protocol */
tty->termios.c_iflag /* input modes - */
@@ -1067,7 +1066,7 @@ static int cypress_chars_in_buffer(struct tty_struct *tty)
chars = kfifo_len(&priv->write_fifo);
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - returns %d", __func__, chars);
+ dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
return chars;
}
@@ -1112,6 +1111,7 @@ static void cypress_read_int_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct cypress_private *priv = usb_get_serial_port_data(port);
+ struct device *dev = &urb->dev->dev;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
unsigned long flags;
@@ -1135,16 +1135,15 @@ static void cypress_read_int_callback(struct urb *urb)
/* FALLS THROUGH */
default:
/* something ugly is going on... */
- dev_err(&urb->dev->dev,
- "%s - unexpected nonzero read status received: %d\n",
- __func__, status);
+ dev_err(dev, "%s - unexpected nonzero read status received: %d\n",
+ __func__, status);
cypress_set_dead(port);
return;
}
spin_lock_irqsave(&priv->lock, flags);
if (priv->rx_flags & THROTTLED) {
- dbg("%s - now throttling", __func__);
+ dev_dbg(dev, "%s - now throttling\n", __func__);
priv->rx_flags |= ACTUALLY_THROTTLED;
spin_unlock_irqrestore(&priv->lock, flags);
return;
@@ -1153,7 +1152,7 @@ static void cypress_read_int_callback(struct urb *urb)
tty = tty_port_tty_get(&port->port);
if (!tty) {
- dbg("%s - bad tty pointer - exiting", __func__);
+ dev_dbg(dev, "%s - bad tty pointer - exiting\n", __func__);
return;
}
@@ -1180,13 +1179,13 @@ static void cypress_read_int_callback(struct urb *urb)
}
spin_unlock_irqrestore(&priv->lock, flags);
if (result < bytes) {
- dbg("%s - wrong packet size - received %d bytes but packet "
- "said %d bytes", __func__, result, bytes);
+ dev_dbg(dev,
+ "%s - wrong packet size - received %d bytes but packet said %d bytes\n",
+ __func__, result, bytes);
goto continue_read;
}
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
+ usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
spin_lock_irqsave(&priv->lock, flags);
/* check to see if status has changed */
@@ -1202,7 +1201,7 @@ static void cypress_read_int_callback(struct urb *urb)
* though */
if (tty && !(tty->termios.c_cflag & CLOCAL) &&
!(priv->current_status & UART_CD)) {
- dbg("%s - calling hangup", __func__);
+ dev_dbg(dev, "%s - calling hangup\n", __func__);
tty_hangup(tty);
goto continue_read;
}
@@ -1215,7 +1214,7 @@ static void cypress_read_int_callback(struct urb *urb)
if (priv->current_status & CYP_ERROR) {
spin_unlock_irqrestore(&priv->lock, flags);
tty_flag = TTY_PARITY;
- dbg("%s - Parity Error detected", __func__);
+ dev_dbg(dev, "%s - Parity Error detected\n", __func__);
} else
spin_unlock_irqrestore(&priv->lock, flags);
@@ -1246,9 +1245,8 @@ continue_read:
priv->read_urb_interval);
result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
if (result && result != -EPERM) {
- dev_err(&urb->dev->dev, "%s - failed resubmitting "
- "read urb, error %d\n", __func__,
- result);
+ dev_err(dev, "%s - failed resubmitting read urb, error %d\n",
+ __func__, result);
cypress_set_dead(port);
}
}
@@ -1259,6 +1257,7 @@ static void cypress_write_int_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct cypress_private *priv = usb_get_serial_port_data(port);
+ struct device *dev = &urb->dev->dev;
int result;
int status = urb->status;
@@ -1270,8 +1269,8 @@ static void cypress_write_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(dev, "%s - urb shutting down with status: %d\n",
+ __func__, status);
priv->write_urb_in_use = 0;
return;
case -EPIPE: /* no break needed; clear halt and resubmit */
@@ -1279,21 +1278,19 @@ static void cypress_write_int_callback(struct urb *urb)
break;
usb_clear_halt(port->serial->dev, 0x02);
/* error in the urb, so we have to resubmit it */
- dbg("%s - nonzero write bulk status received: %d",
+ dev_dbg(dev, "%s - nonzero write bulk status received: %d\n",
__func__, status);
port->interrupt_out_urb->transfer_buffer_length = 1;
result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
if (!result)
return;
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting write urb, error %d\n",
- __func__, result);
+ dev_err(dev, "%s - failed resubmitting write urb, error %d\n",
+ __func__, result);
cypress_set_dead(port);
break;
default:
- dev_err(&urb->dev->dev,
- "%s - unexpected nonzero write status received: %d\n",
- __func__, status);
+ dev_err(dev, "%s - unexpected nonzero write status received: %d\n",
+ __func__, status);
cypress_set_dead(port);
break;
}
@@ -1310,8 +1307,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
module_param(stats, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(stats, "Enable statistics or not");
module_param(interval, int, S_IRUGO | S_IWUSR);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-22 13:35:01 +0300