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path: root/drivers/usb/serial/usb-serial.c
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Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
-rw-r--r--drivers/usb/serial/usb-serial.c107
1 files changed, 50 insertions, 57 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 2138ba8aeb69..a9934a3f9845 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -81,7 +81,7 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po
unsigned int i, j;
int good_spot;
- dbg("%s %d", __FUNCTION__, num_ports);
+ dbg("%s %d", __func__, num_ports);
*minor = 0;
mutex_lock(&table_lock);
@@ -101,7 +101,7 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po
*minor = i;
j = 0;
- dbg("%s - minor base = %d", __FUNCTION__, *minor);
+ dbg("%s - minor base = %d", __func__, *minor);
for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) {
serial_table[i] = serial;
serial->port[j++]->number = i;
@@ -117,7 +117,7 @@ static void return_serial(struct usb_serial *serial)
{
int i;
- dbg("%s", __FUNCTION__);
+ dbg("%s", __func__);
if (serial == NULL)
return;
@@ -135,7 +135,7 @@ static void destroy_serial(struct kref *kref)
serial = to_usb_serial(kref);
- dbg("%s - %s", __FUNCTION__, serial->type->description);
+ dbg("%s - %s", __func__, serial->type->description);
serial->type->shutdown(serial);
@@ -187,7 +187,7 @@ static int serial_open (struct tty_struct *tty, struct file * filp)
unsigned int portNumber;
int retval;
- dbg("%s", __FUNCTION__);
+ dbg("%s", __func__);
/* get the serial object associated with this tty pointer */
serial = usb_serial_get_by_index(tty->index);
@@ -259,7 +259,7 @@ static void serial_close(struct tty_struct *tty, struct file * filp)
if (!port)
return;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
mutex_lock(&port->mutex);
@@ -299,11 +299,11 @@ static int serial_write (struct tty_struct * tty, const unsigned char *buf, int
if (!port || port->serial->dev->state == USB_STATE_NOTATTACHED)
goto exit;
- dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count);
+ dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
if (!port->open_count) {
retval = -EINVAL;
- dbg("%s - port not opened", __FUNCTION__);
+ dbg("%s - port not opened", __func__);
goto exit;
}
@@ -322,10 +322,10 @@ static int serial_write_room (struct tty_struct *tty)
if (!port)
goto exit;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
goto exit;
}
@@ -344,10 +344,10 @@ static int serial_chars_in_buffer (struct tty_struct *tty)
if (!port)
goto exit;
- dbg("%s = port %d", __FUNCTION__, port->number);
+ dbg("%s = port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
goto exit;
}
@@ -365,10 +365,10 @@ static void serial_throttle (struct tty_struct * tty)
if (!port)
return;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg ("%s - port not open", __FUNCTION__);
+ dbg ("%s - port not open", __func__);
return;
}
@@ -384,10 +384,10 @@ static void serial_unthrottle (struct tty_struct * tty)
if (!port)
return;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
return;
}
@@ -401,13 +401,15 @@ static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned in
struct usb_serial_port *port = tty->driver_data;
int retval = -ENODEV;
+ lock_kernel();
if (!port)
goto exit;
- dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
+ dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
+ /* Caution - port->open_count is BKL protected */
if (!port->open_count) {
- dbg ("%s - port not open", __FUNCTION__);
+ dbg ("%s - port not open", __func__);
goto exit;
}
@@ -416,8 +418,8 @@ static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned in
retval = port->serial->type->ioctl(port, file, cmd, arg);
else
retval = -ENOIOCTLCMD;
-
exit:
+ unlock_kernel();
return retval;
}
@@ -428,10 +430,10 @@ static void serial_set_termios (struct tty_struct *tty, struct ktermios * old)
if (!port)
return;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
return;
}
@@ -446,19 +448,24 @@ static void serial_break (struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
- if (!port)
+ lock_kernel();
+ if (!port) {
+ unlock_kernel();
return;
+ }
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
+ unlock_kernel();
return;
}
/* pass on to the driver specific version of this function if it is available */
if (port->serial->type->break_ctl)
port->serial->type->break_ctl(port, break_state);
+ unlock_kernel();
}
static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data)
@@ -469,7 +476,7 @@ static int serial_read_proc (char *page, char **start, off_t off, int count, int
off_t begin = 0;
char tmp[40];
- dbg("%s", __FUNCTION__);
+ dbg("%s", __func__);
length += sprintf (page, "usbserinfo:1.0 driver:2.0\n");
for (i = 0; i < SERIAL_TTY_MINORS && length < PAGE_SIZE; ++i) {
serial = usb_serial_get_by_index(i);
@@ -515,10 +522,10 @@ static int serial_tiocmget (struct tty_struct *tty, struct file *file)
if (!port)
return -ENODEV;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
return -ENODEV;
}
@@ -536,10 +543,10 @@ static int serial_tiocmset (struct tty_struct *tty, struct file *file,
if (!port)
return -ENODEV;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port->open_count) {
- dbg("%s - port not open", __FUNCTION__);
+ dbg("%s - port not open", __func__);
return -ENODEV;
}
@@ -565,7 +572,7 @@ static void usb_serial_port_work(struct work_struct *work)
container_of(work, struct usb_serial_port, work);
struct tty_struct *tty;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (!port)
return;
@@ -581,7 +588,7 @@ static void port_release(struct device *dev)
{
struct usb_serial_port *port = to_usb_serial_port(dev);
- dbg ("%s - %s", __FUNCTION__, dev->bus_id);
+ dbg ("%s - %s", __func__, dev->bus_id);
port_free(port);
}
@@ -627,7 +634,7 @@ static struct usb_serial * create_serial (struct usb_device *dev,
serial = kzalloc(sizeof(*serial), GFP_KERNEL);
if (!serial) {
- dev_err(&dev->dev, "%s - out of memory\n", __FUNCTION__);
+ dev_err(&dev->dev, "%s - out of memory\n", __func__);
return NULL;
}
serial->dev = usb_get_dev(dev);
@@ -722,7 +729,7 @@ int usb_serial_probe(struct usb_interface *interface,
serial = create_serial (dev, interface, type);
if (!serial) {
unlock_kernel();
- dev_err(&interface->dev, "%s - out of memory\n", __FUNCTION__);
+ dev_err(&interface->dev, "%s - out of memory\n", __func__);
return -ENOMEM;
}
@@ -854,22 +861,6 @@ int usb_serial_probe(struct usb_interface *interface,
serial->num_interrupt_in = num_interrupt_in;
serial->num_interrupt_out = num_interrupt_out;
-#if 0
- /* check that the device meets the driver's requirements */
- if ((type->num_interrupt_in != NUM_DONT_CARE &&
- type->num_interrupt_in != num_interrupt_in)
- || (type->num_interrupt_out != NUM_DONT_CARE &&
- type->num_interrupt_out != num_interrupt_out)
- || (type->num_bulk_in != NUM_DONT_CARE &&
- type->num_bulk_in != num_bulk_in)
- || (type->num_bulk_out != NUM_DONT_CARE &&
- type->num_bulk_out != num_bulk_out)) {
- dbg("wrong number of endpoints");
- kfree(serial);
- return -EIO;
- }
-#endif
-
/* found all that we need */
dev_info(&interface->dev, "%s converter detected\n",
type->description);
@@ -883,7 +874,7 @@ int usb_serial_probe(struct usb_interface *interface,
serial->num_port_pointers = max_endpoints;
unlock_kernel();
- dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints);
+ dbg("%s - setting up %d port structures for this device", __func__, max_endpoints);
for (i = 0; i < max_endpoints; ++i) {
port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
if (!port)
@@ -1031,7 +1022,7 @@ int usb_serial_probe(struct usb_interface *interface,
port->dev.release = &port_release;
snprintf (&port->dev.bus_id[0], sizeof(port->dev.bus_id), "ttyUSB%d", port->number);
- dbg ("%s - registering %s", __FUNCTION__, port->dev.bus_id);
+ dbg ("%s - registering %s", __func__, port->dev.bus_id);
retval = device_register(&port->dev);
if (retval)
dev_err(&port->dev, "Error registering port device, "
@@ -1090,7 +1081,7 @@ void usb_serial_disconnect(struct usb_interface *interface)
struct usb_serial_port *port;
usb_serial_console_disconnect(serial);
- dbg ("%s", __FUNCTION__);
+ dbg ("%s", __func__);
mutex_lock(&serial->disc_mutex);
usb_set_intfdata (interface, NULL);
@@ -1174,7 +1165,7 @@ static int __init usb_serial_init(void)
result = bus_register(&usb_serial_bus_type);
if (result) {
- err("%s - registering bus driver failed", __FUNCTION__);
+ err("%s - registering bus driver failed", __func__);
goto exit_bus;
}
@@ -1188,24 +1179,26 @@ static int __init usb_serial_init(void)
usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
usb_serial_tty_driver->init_termios = tty_std_termios;
usb_serial_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ usb_serial_tty_driver->init_termios.c_ispeed = 9600;
+ usb_serial_tty_driver->init_termios.c_ospeed = 9600;
tty_set_operations(usb_serial_tty_driver, &serial_ops);
result = tty_register_driver(usb_serial_tty_driver);
if (result) {
- err("%s - tty_register_driver failed", __FUNCTION__);
+ err("%s - tty_register_driver failed", __func__);
goto exit_reg_driver;
}
/* register the USB driver */
result = usb_register(&usb_serial_driver);
if (result < 0) {
- err("%s - usb_register failed", __FUNCTION__);
+ err("%s - usb_register failed", __func__);
goto exit_tty;
}
/* register the generic driver, if we should */
result = usb_serial_generic_register(debug);
if (result < 0) {
- err("%s - registering generic driver failed", __FUNCTION__);
+ err("%s - registering generic driver failed", __func__);
goto exit_generic;
}
@@ -1223,7 +1216,7 @@ exit_reg_driver:
bus_unregister(&usb_serial_bus_type);
exit_bus:
- err ("%s - returning with error %d", __FUNCTION__, result);
+ err ("%s - returning with error %d", __func__, result);
put_tty_driver(usb_serial_tty_driver);
return result;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 06:07:51 +0000