usb-serial: Coding style
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
Linus Torvalds
parent
d60d43965e
commit
a8d6f0a9c4
1 changed files with 164 additions and 140 deletions
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@ -12,7 +12,8 @@
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* This driver was originally based on the ACM driver by Armin Fuerst (which was
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* based on a driver by Brad Keryan)
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*
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* See Documentation/usb/usb-serial.txt for more information on using this driver
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* See Documentation/usb/usb-serial.txt for more information on using this
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* driver
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*
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*/
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@ -28,7 +29,7 @@
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <asm/uaccess.h>
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#include <linux/uaccess.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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#include "pl2303.h"
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@ -59,7 +60,8 @@ static struct usb_driver usb_serial_driver = {
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*/
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static int debug;
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static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */
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/* initially all NULL */
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static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
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static DEFINE_MUTEX(table_lock);
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static LIST_HEAD(usb_serial_driver_list);
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@ -76,7 +78,8 @@ struct usb_serial *usb_serial_get_by_index(unsigned index)
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return serial;
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}
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static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_ports, unsigned int *minor)
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static struct usb_serial *get_free_serial(struct usb_serial *serial,
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int num_ports, unsigned int *minor)
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{
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unsigned int i, j;
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int good_spot;
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@ -122,9 +125,8 @@ static void return_serial(struct usb_serial *serial)
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if (serial == NULL)
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return;
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for (i = 0; i < serial->num_ports; ++i) {
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for (i = 0; i < serial->num_ports; ++i)
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serial_table[serial->minor + i] = NULL;
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}
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}
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static void destroy_serial(struct kref *kref)
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@ -156,7 +158,8 @@ static void destroy_serial(struct kref *kref)
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* not get cleaned up in port_release() as it was never registered with
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* the driver core */
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if (serial->num_ports < serial->num_port_pointers) {
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for (i = serial->num_ports; i < serial->num_port_pointers; ++i) {
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for (i = serial->num_ports;
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i < serial->num_port_pointers; ++i) {
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port = serial->port[i];
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if (!port)
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continue;
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@ -167,7 +170,7 @@ static void destroy_serial(struct kref *kref)
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usb_put_dev(serial->dev);
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/* free up any memory that we allocated */
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kfree (serial);
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kfree(serial);
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}
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void usb_serial_put(struct usb_serial *serial)
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@ -180,13 +183,13 @@ void usb_serial_put(struct usb_serial *serial)
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/*****************************************************************************
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* Driver tty interface functions
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*****************************************************************************/
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static int serial_open (struct tty_struct *tty, struct file * filp)
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static int serial_open (struct tty_struct *tty, struct file *filp)
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{
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struct usb_serial *serial;
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struct usb_serial_port *port;
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unsigned int portNumber;
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int retval;
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dbg("%s", __func__);
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/* get the serial object associated with this tty pointer */
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@ -207,7 +210,7 @@ static int serial_open (struct tty_struct *tty, struct file * filp)
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retval = -ERESTARTSYS;
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goto bailout_kref_put;
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}
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++port->port.count;
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/* set up our port structure making the tty driver
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@ -228,7 +231,7 @@ static int serial_open (struct tty_struct *tty, struct file * filp)
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retval = usb_autopm_get_interface(serial->interface);
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if (retval)
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goto bailout_module_put;
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/* only call the device specific open if this
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/* only call the device specific open if this
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* is the first time the port is opened */
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retval = serial->type->open(tty, port, filp);
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if (retval)
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@ -252,7 +255,7 @@ static int serial_open (struct tty_struct *tty, struct file * filp)
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return retval;
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}
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static void serial_close(struct tty_struct *tty, struct file * filp)
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static void serial_close(struct tty_struct *tty, struct file *filp)
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{
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struct usb_serial_port *port = tty->driver_data;
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@ -270,7 +273,7 @@ static void serial_close(struct tty_struct *tty, struct file * filp)
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--port->port.count;
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if (port->port.count == 0)
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/* only call the device specific close if this
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/* only call the device specific close if this
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* port is being closed by the last owner */
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port->serial->type->close(tty, port, filp);
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@ -294,7 +297,8 @@ static void serial_close(struct tty_struct *tty, struct file * filp)
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usb_serial_put(port->serial);
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}
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static int serial_write (struct tty_struct * tty, const unsigned char *buf, int count)
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static int serial_write(struct tty_struct *tty, const unsigned char *buf,
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int count)
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{
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struct usb_serial_port *port = tty->driver_data;
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int retval = -ENODEV;
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@ -305,7 +309,7 @@ static int serial_write (struct tty_struct * tty, const unsigned char *buf, int
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dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
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/* count is managed under the mutex lock for the tty so cannot
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drop to zero until after the last close completes */
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drop to zero until after the last close completes */
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WARN_ON(!port->port.count);
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/* pass on to the driver specific version of this function */
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@ -315,7 +319,7 @@ static int serial_write (struct tty_struct * tty, const unsigned char *buf, int
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return retval;
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}
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static int serial_write_room (struct tty_struct *tty)
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static int serial_write_room(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s - port %d", __func__, port->number);
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@ -324,7 +328,7 @@ static int serial_write_room (struct tty_struct *tty)
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return port->serial->type->write_room(tty);
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}
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static int serial_chars_in_buffer (struct tty_struct *tty)
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static int serial_chars_in_buffer(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s = port %d", __func__, port->number);
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@ -334,7 +338,7 @@ static int serial_chars_in_buffer (struct tty_struct *tty)
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return port->serial->type->chars_in_buffer(tty);
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}
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static void serial_throttle (struct tty_struct * tty)
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static void serial_throttle(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s - port %d", __func__, port->number);
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@ -345,7 +349,7 @@ static void serial_throttle (struct tty_struct * tty)
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port->serial->type->throttle(tty);
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}
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static void serial_unthrottle (struct tty_struct * tty)
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static void serial_unthrottle(struct tty_struct *tty)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s - port %d", __func__, port->number);
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@ -356,7 +360,8 @@ static void serial_unthrottle (struct tty_struct * tty)
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port->serial->type->unthrottle(tty);
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}
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static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
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static int serial_ioctl(struct tty_struct *tty, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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struct usb_serial_port *port = tty->driver_data;
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int retval = -ENODEV;
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@ -365,38 +370,40 @@ static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned in
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WARN_ON(!port->port.count);
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/* pass on to the driver specific version of this function if it is available */
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/* pass on to the driver specific version of this function
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if it is available */
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if (port->serial->type->ioctl) {
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lock_kernel();
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retval = port->serial->type->ioctl(tty, file, cmd, arg);
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unlock_kernel();
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}
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else
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} else
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retval = -ENOIOCTLCMD;
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return retval;
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}
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static void serial_set_termios (struct tty_struct *tty, struct ktermios * old)
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static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s - port %d", __func__, port->number);
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WARN_ON(!port->port.count);
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/* pass on to the driver specific version of this function if it is available */
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/* pass on to the driver specific version of this function
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if it is available */
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if (port->serial->type->set_termios)
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port->serial->type->set_termios(tty, port, old);
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else
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tty_termios_copy_hw(tty->termios, old);
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}
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static void serial_break (struct tty_struct *tty, int break_state)
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static void serial_break(struct tty_struct *tty, int break_state)
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{
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struct usb_serial_port *port = tty->driver_data;
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dbg("%s - port %d", __func__, port->number);
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WARN_ON(!port->port.count);
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/* pass on to the driver specific version of this function if it is available */
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/* pass on to the driver specific version of this function
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if it is available */
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if (port->serial->type->break_ctl) {
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lock_kernel();
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port->serial->type->break_ctl(tty, break_state);
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@ -404,7 +411,8 @@ static void serial_break (struct tty_struct *tty, int break_state)
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}
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}
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static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data)
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static int serial_read_proc(char *page, char **start, off_t off, int count,
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int *eof, void *data)
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{
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struct usb_serial *serial;
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int length = 0;
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@ -413,26 +421,29 @@ static int serial_read_proc (char *page, char **start, off_t off, int count, int
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char tmp[40];
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dbg("%s", __func__);
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length += sprintf (page, "usbserinfo:1.0 driver:2.0\n");
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length += sprintf(page, "usbserinfo:1.0 driver:2.0\n");
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for (i = 0; i < SERIAL_TTY_MINORS && length < PAGE_SIZE; ++i) {
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serial = usb_serial_get_by_index(i);
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if (serial == NULL)
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continue;
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length += sprintf (page+length, "%d:", i);
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length += sprintf(page+length, "%d:", i);
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if (serial->type->driver.owner)
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length += sprintf (page+length, " module:%s", module_name(serial->type->driver.owner));
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length += sprintf (page+length, " name:\"%s\"", serial->type->description);
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length += sprintf (page+length, " vendor:%04x product:%04x",
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le16_to_cpu(serial->dev->descriptor.idVendor),
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le16_to_cpu(serial->dev->descriptor.idProduct));
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length += sprintf (page+length, " num_ports:%d", serial->num_ports);
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length += sprintf (page+length, " port:%d", i - serial->minor + 1);
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length += sprintf(page+length, " module:%s",
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module_name(serial->type->driver.owner));
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length += sprintf(page+length, " name:\"%s\"",
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serial->type->description);
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length += sprintf(page+length, " vendor:%04x product:%04x",
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le16_to_cpu(serial->dev->descriptor.idVendor),
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le16_to_cpu(serial->dev->descriptor.idProduct));
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length += sprintf(page+length, " num_ports:%d",
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serial->num_ports);
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length += sprintf(page+length, " port:%d",
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i - serial->minor + 1);
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usb_make_path(serial->dev, tmp, sizeof(tmp));
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length += sprintf (page+length, " path:%s", tmp);
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length += sprintf (page+length, "\n");
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length += sprintf(page+length, " path:%s", tmp);
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length += sprintf(page+length, "\n");
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if ((length + begin) > (off + count)) {
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usb_serial_put(serial);
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goto done;
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@ -448,10 +459,10 @@ static int serial_read_proc (char *page, char **start, off_t off, int count, int
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if (off >= (length + begin))
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return 0;
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*start = page + (off-begin);
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return ((count < begin+length-off) ? count : begin+length-off);
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return (count < begin+length-off) ? count : begin+length-off;
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}
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static int serial_tiocmget (struct tty_struct *tty, struct file *file)
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static int serial_tiocmget(struct tty_struct *tty, struct file *file)
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{
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struct usb_serial_port *port = tty->driver_data;
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@ -463,7 +474,7 @@ static int serial_tiocmget (struct tty_struct *tty, struct file *file)
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return -EINVAL;
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}
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static int serial_tiocmset (struct tty_struct *tty, struct file *file,
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static int serial_tiocmset(struct tty_struct *tty, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct usb_serial_port *port = tty->driver_data;
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@ -485,6 +496,7 @@ void usb_serial_port_softint(struct usb_serial_port *port)
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{
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schedule_work(&port->work);
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}
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EXPORT_SYMBOL_GPL(usb_serial_port_softint);
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static void usb_serial_port_work(struct work_struct *work)
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{
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@ -493,7 +505,7 @@ static void usb_serial_port_work(struct work_struct *work)
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struct tty_struct *tty;
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dbg("%s - port %d", __func__, port->number);
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if (!port)
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return;
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@ -546,9 +558,9 @@ static void port_free(struct usb_serial_port *port)
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kfree(port);
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}
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static struct usb_serial * create_serial (struct usb_device *dev,
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struct usb_interface *interface,
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struct usb_serial_driver *driver)
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static struct usb_serial *create_serial(struct usb_device *dev,
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struct usb_interface *interface,
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struct usb_serial_driver *driver)
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{
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struct usb_serial *serial;
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@ -567,7 +579,7 @@ static struct usb_serial * create_serial (struct usb_device *dev,
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}
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static const struct usb_device_id *match_dynamic_id(struct usb_interface *intf,
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struct usb_serial_driver *drv)
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struct usb_serial_driver *drv)
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{
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struct usb_dynid *dynid;
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@ -599,7 +611,8 @@ static const struct usb_device_id *get_iface_id(struct usb_serial_driver *drv,
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return id;
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}
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static struct usb_serial_driver *search_serial_device(struct usb_interface *iface)
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static struct usb_serial_driver *search_serial_device(
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struct usb_interface *iface)
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{
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const struct usb_device_id *id;
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struct usb_serial_driver *drv;
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@ -617,7 +630,7 @@ static struct usb_serial_driver *search_serial_device(struct usb_interface *ifac
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int usb_serial_probe(struct usb_interface *interface,
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const struct usb_device_id *id)
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{
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struct usb_device *dev = interface_to_usbdev (interface);
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struct usb_device *dev = interface_to_usbdev(interface);
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struct usb_serial *serial = NULL;
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struct usb_serial_port *port;
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struct usb_host_interface *iface_desc;
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@ -646,7 +659,7 @@ int usb_serial_probe(struct usb_interface *interface,
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return -ENODEV;
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}
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serial = create_serial (dev, interface, type);
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serial = create_serial(dev, interface, type);
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if (!serial) {
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unlock_kernel();
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dev_err(&interface->dev, "%s - out of memory\n", __func__);
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@ -659,8 +672,9 @@ int usb_serial_probe(struct usb_interface *interface,
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if (!try_module_get(type->driver.owner)) {
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unlock_kernel();
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dev_err(&interface->dev, "module get failed, exiting\n");
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kfree (serial);
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dev_err(&interface->dev,
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"module get failed, exiting\n");
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kfree(serial);
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return -EIO;
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}
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@ -670,8 +684,8 @@ int usb_serial_probe(struct usb_interface *interface,
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if (retval) {
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unlock_kernel();
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dbg ("sub driver rejected device");
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kfree (serial);
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dbg("sub driver rejected device");
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kfree(serial);
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return retval;
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}
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}
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@ -712,7 +726,7 @@ int usb_serial_probe(struct usb_interface *interface,
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}
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#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE)
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/* BEGIN HORRIBLE HACK FOR PL2303 */
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/* BEGIN HORRIBLE HACK FOR PL2303 */
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/* this is needed due to the looney way its endpoints are set up */
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if (((le16_to_cpu(dev->descriptor.idVendor) == PL2303_VENDOR_ID) &&
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(le16_to_cpu(dev->descriptor.idProduct) == PL2303_PRODUCT_ID)) ||
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@ -741,7 +755,7 @@ int usb_serial_probe(struct usb_interface *interface,
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if (num_bulk_in == 0 || num_bulk_out == 0) {
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||||
unlock_kernel();
|
||||
dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n");
|
||||
kfree (serial);
|
||||
kfree(serial);
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
|
|
@ -753,8 +767,9 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
num_ports = num_bulk_out;
|
||||
if (num_ports == 0) {
|
||||
unlock_kernel();
|
||||
dev_err(&interface->dev, "Generic device with no bulk out, not allowed.\n");
|
||||
kfree (serial);
|
||||
dev_err(&interface->dev,
|
||||
"Generic device with no bulk out, not allowed.\n");
|
||||
kfree(serial);
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
|
|
@ -764,11 +779,12 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
if (type->calc_num_ports) {
|
||||
if (!try_module_get(type->driver.owner)) {
|
||||
unlock_kernel();
|
||||
dev_err(&interface->dev, "module get failed, exiting\n");
|
||||
kfree (serial);
|
||||
dev_err(&interface->dev,
|
||||
"module get failed, exiting\n");
|
||||
kfree(serial);
|
||||
return -EIO;
|
||||
}
|
||||
num_ports = type->calc_num_ports (serial);
|
||||
num_ports = type->calc_num_ports(serial);
|
||||
module_put(type->driver.owner);
|
||||
}
|
||||
if (!num_ports)
|
||||
|
|
@ -786,7 +802,8 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
type->description);
|
||||
|
||||
/* create our ports, we need as many as the max endpoints */
|
||||
/* we don't use num_ports here cauz some devices have more endpoint pairs than ports */
|
||||
/* we don't use num_ports here because some devices have more
|
||||
endpoint pairs than ports */
|
||||
max_endpoints = max(num_bulk_in, num_bulk_out);
|
||||
max_endpoints = max(max_endpoints, num_interrupt_in);
|
||||
max_endpoints = max(max_endpoints, num_interrupt_out);
|
||||
|
|
@ -794,7 +811,8 @@ 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", __func__, 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)
|
||||
|
|
@ -810,7 +828,7 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
for (i = 0; i < num_bulk_in; ++i) {
|
||||
endpoint = bulk_in_endpoint[i];
|
||||
port = serial->port[i];
|
||||
port->read_urb = usb_alloc_urb (0, GFP_KERNEL);
|
||||
port->read_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!port->read_urb) {
|
||||
dev_err(&interface->dev, "No free urbs available\n");
|
||||
goto probe_error;
|
||||
|
|
@ -818,17 +836,17 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
||||
port->bulk_in_size = buffer_size;
|
||||
port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
|
||||
port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
|
||||
port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
|
||||
if (!port->bulk_in_buffer) {
|
||||
dev_err(&interface->dev, "Couldn't allocate bulk_in_buffer\n");
|
||||
dev_err(&interface->dev,
|
||||
"Couldn't allocate bulk_in_buffer\n");
|
||||
goto probe_error;
|
||||
}
|
||||
usb_fill_bulk_urb (port->read_urb, dev,
|
||||
usb_rcvbulkpipe (dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->bulk_in_buffer, buffer_size,
|
||||
serial->type->read_bulk_callback,
|
||||
port);
|
||||
usb_fill_bulk_urb(port->read_urb, dev,
|
||||
usb_rcvbulkpipe(dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->bulk_in_buffer, buffer_size,
|
||||
serial->type->read_bulk_callback, port);
|
||||
}
|
||||
|
||||
for (i = 0; i < num_bulk_out; ++i) {
|
||||
|
|
@ -842,17 +860,17 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
||||
port->bulk_out_size = buffer_size;
|
||||
port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
|
||||
port->bulk_out_buffer = kmalloc (buffer_size, GFP_KERNEL);
|
||||
port->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
|
||||
if (!port->bulk_out_buffer) {
|
||||
dev_err(&interface->dev, "Couldn't allocate bulk_out_buffer\n");
|
||||
dev_err(&interface->dev,
|
||||
"Couldn't allocate bulk_out_buffer\n");
|
||||
goto probe_error;
|
||||
}
|
||||
usb_fill_bulk_urb (port->write_urb, dev,
|
||||
usb_sndbulkpipe (dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->bulk_out_buffer, buffer_size,
|
||||
serial->type->write_bulk_callback,
|
||||
port);
|
||||
usb_fill_bulk_urb(port->write_urb, dev,
|
||||
usb_sndbulkpipe(dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->bulk_out_buffer, buffer_size,
|
||||
serial->type->write_bulk_callback, port);
|
||||
}
|
||||
|
||||
if (serial->type->read_int_callback) {
|
||||
|
|
@ -861,73 +879,82 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
port = serial->port[i];
|
||||
port->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!port->interrupt_in_urb) {
|
||||
dev_err(&interface->dev, "No free urbs available\n");
|
||||
dev_err(&interface->dev,
|
||||
"No free urbs available\n");
|
||||
goto probe_error;
|
||||
}
|
||||
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
||||
port->interrupt_in_endpointAddress = endpoint->bEndpointAddress;
|
||||
port->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
|
||||
port->interrupt_in_endpointAddress =
|
||||
endpoint->bEndpointAddress;
|
||||
port->interrupt_in_buffer = kmalloc(buffer_size,
|
||||
GFP_KERNEL);
|
||||
if (!port->interrupt_in_buffer) {
|
||||
dev_err(&interface->dev, "Couldn't allocate interrupt_in_buffer\n");
|
||||
dev_err(&interface->dev,
|
||||
"Couldn't allocate interrupt_in_buffer\n");
|
||||
goto probe_error;
|
||||
}
|
||||
usb_fill_int_urb (port->interrupt_in_urb, dev,
|
||||
usb_rcvintpipe (dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->interrupt_in_buffer, buffer_size,
|
||||
serial->type->read_int_callback, port,
|
||||
endpoint->bInterval);
|
||||
usb_fill_int_urb(port->interrupt_in_urb, dev,
|
||||
usb_rcvintpipe(dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->interrupt_in_buffer, buffer_size,
|
||||
serial->type->read_int_callback, port,
|
||||
endpoint->bInterval);
|
||||
}
|
||||
} else if (num_interrupt_in) {
|
||||
dbg("the device claims to support interrupt in transfers, but read_int_callback is not defined");
|
||||
}
|
||||
|
||||
|
||||
if (serial->type->write_int_callback) {
|
||||
for (i = 0; i < num_interrupt_out; ++i) {
|
||||
endpoint = interrupt_out_endpoint[i];
|
||||
port = serial->port[i];
|
||||
port->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!port->interrupt_out_urb) {
|
||||
dev_err(&interface->dev, "No free urbs available\n");
|
||||
dev_err(&interface->dev,
|
||||
"No free urbs available\n");
|
||||
goto probe_error;
|
||||
}
|
||||
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
|
||||
port->interrupt_out_size = buffer_size;
|
||||
port->interrupt_out_endpointAddress = endpoint->bEndpointAddress;
|
||||
port->interrupt_out_buffer = kmalloc (buffer_size, GFP_KERNEL);
|
||||
port->interrupt_out_endpointAddress =
|
||||
endpoint->bEndpointAddress;
|
||||
port->interrupt_out_buffer = kmalloc(buffer_size,
|
||||
GFP_KERNEL);
|
||||
if (!port->interrupt_out_buffer) {
|
||||
dev_err(&interface->dev, "Couldn't allocate interrupt_out_buffer\n");
|
||||
dev_err(&interface->dev,
|
||||
"Couldn't allocate interrupt_out_buffer\n");
|
||||
goto probe_error;
|
||||
}
|
||||
usb_fill_int_urb (port->interrupt_out_urb, dev,
|
||||
usb_sndintpipe (dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->interrupt_out_buffer, buffer_size,
|
||||
serial->type->write_int_callback, port,
|
||||
endpoint->bInterval);
|
||||
usb_fill_int_urb(port->interrupt_out_urb, dev,
|
||||
usb_sndintpipe(dev,
|
||||
endpoint->bEndpointAddress),
|
||||
port->interrupt_out_buffer, buffer_size,
|
||||
serial->type->write_int_callback, port,
|
||||
endpoint->bInterval);
|
||||
}
|
||||
} else if (num_interrupt_out) {
|
||||
dbg("the device claims to support interrupt out transfers, but write_int_callback is not defined");
|
||||
}
|
||||
|
||||
|
||||
/* if this device type has an attach function, call it */
|
||||
if (type->attach) {
|
||||
if (!try_module_get(type->driver.owner)) {
|
||||
dev_err(&interface->dev, "module get failed, exiting\n");
|
||||
dev_err(&interface->dev,
|
||||
"module get failed, exiting\n");
|
||||
goto probe_error;
|
||||
}
|
||||
retval = type->attach (serial);
|
||||
retval = type->attach(serial);
|
||||
module_put(type->driver.owner);
|
||||
if (retval < 0)
|
||||
goto probe_error;
|
||||
if (retval > 0) {
|
||||
/* quietly accept this device, but don't bind to a serial port
|
||||
* as it's about to disappear */
|
||||
/* quietly accept this device, but don't bind to a
|
||||
serial port as it's about to disappear */
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
|
||||
if (get_free_serial (serial, num_ports, &minor) == NULL) {
|
||||
if (get_free_serial(serial, num_ports, &minor) == NULL) {
|
||||
dev_err(&interface->dev, "No more free serial devices\n");
|
||||
goto probe_error;
|
||||
}
|
||||
|
|
@ -949,11 +976,11 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
"continuing\n");
|
||||
}
|
||||
|
||||
usb_serial_console_init (debug, minor);
|
||||
usb_serial_console_init(debug, minor);
|
||||
|
||||
exit:
|
||||
/* success */
|
||||
usb_set_intfdata (interface, serial);
|
||||
usb_set_intfdata(interface, serial);
|
||||
return 0;
|
||||
|
||||
probe_error:
|
||||
|
|
@ -989,22 +1016,23 @@ int usb_serial_probe(struct usb_interface *interface,
|
|||
/* free up any memory that we allocated */
|
||||
for (i = 0; i < serial->num_port_pointers; ++i)
|
||||
kfree(serial->port[i]);
|
||||
kfree (serial);
|
||||
kfree(serial);
|
||||
return -EIO;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(usb_serial_probe);
|
||||
|
||||
void usb_serial_disconnect(struct usb_interface *interface)
|
||||
{
|
||||
int i;
|
||||
struct usb_serial *serial = usb_get_intfdata (interface);
|
||||
struct usb_serial *serial = usb_get_intfdata(interface);
|
||||
struct device *dev = &interface->dev;
|
||||
struct usb_serial_port *port;
|
||||
|
||||
usb_serial_console_disconnect(serial);
|
||||
dbg ("%s", __func__);
|
||||
dbg("%s", __func__);
|
||||
|
||||
mutex_lock(&serial->disc_mutex);
|
||||
usb_set_intfdata (interface, NULL);
|
||||
usb_set_intfdata(interface, NULL);
|
||||
/* must set a flag, to signal subdrivers */
|
||||
serial->disconnected = 1;
|
||||
for (i = 0; i < serial->num_ports; ++i) {
|
||||
|
|
@ -1021,6 +1049,7 @@ void usb_serial_disconnect(struct usb_interface *interface)
|
|||
usb_serial_put(serial);
|
||||
dev_info(dev, "device disconnected\n");
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(usb_serial_disconnect);
|
||||
|
||||
int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
|
||||
{
|
||||
|
|
@ -1079,9 +1108,8 @@ static int __init usb_serial_init(void)
|
|||
return -ENOMEM;
|
||||
|
||||
/* Initialize our global data */
|
||||
for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
|
||||
for (i = 0; i < SERIAL_TTY_MINORS; ++i)
|
||||
serial_table[i] = NULL;
|
||||
}
|
||||
|
||||
result = bus_register(&usb_serial_bus_type);
|
||||
if (result) {
|
||||
|
|
@ -1096,9 +1124,11 @@ static int __init usb_serial_init(void)
|
|||
usb_serial_tty_driver->minor_start = 0;
|
||||
usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
|
||||
usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL;
|
||||
usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
|
||||
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_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);
|
||||
|
|
@ -1136,7 +1166,7 @@ static int __init usb_serial_init(void)
|
|||
bus_unregister(&usb_serial_bus_type);
|
||||
|
||||
exit_bus:
|
||||
err ("%s - returning with error %d", __func__, result);
|
||||
err("%s - returning with error %d", __func__, result);
|
||||
put_tty_driver(usb_serial_tty_driver);
|
||||
return result;
|
||||
}
|
||||
|
|
@ -1163,7 +1193,7 @@ module_exit(usb_serial_exit);
|
|||
if (!type->function) { \
|
||||
type->function = usb_serial_generic_##function; \
|
||||
dbg("Had to override the " #function \
|
||||
" usb serial operation with the generic one.");\
|
||||
" usb serial operation with the generic one.");\
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
|
|
@ -1180,8 +1210,9 @@ static void fixup_generic(struct usb_serial_driver *device)
|
|||
set_to_generic_if_null(device, resume);
|
||||
}
|
||||
|
||||
int usb_serial_register(struct usb_serial_driver *driver) /* must be called with BKL held */
|
||||
int usb_serial_register(struct usb_serial_driver *driver)
|
||||
{
|
||||
/* must be called with BKL held */
|
||||
int retval;
|
||||
|
||||
fixup_generic(driver);
|
||||
|
|
@ -1194,37 +1225,30 @@ int usb_serial_register(struct usb_serial_driver *driver) /* must be called with
|
|||
|
||||
retval = usb_serial_bus_register(driver);
|
||||
if (retval) {
|
||||
err("problem %d when registering driver %s", retval, driver->description);
|
||||
err("problem %d when registering driver %s",
|
||||
retval, driver->description);
|
||||
list_del(&driver->driver_list);
|
||||
}
|
||||
else
|
||||
info("USB Serial support registered for %s", driver->description);
|
||||
} else
|
||||
info("USB Serial support registered for %s",
|
||||
driver->description);
|
||||
|
||||
return retval;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(usb_serial_register);
|
||||
|
||||
|
||||
void usb_serial_deregister(struct usb_serial_driver *device) /* must be called with BKL held */
|
||||
void usb_serial_deregister(struct usb_serial_driver *device)
|
||||
{
|
||||
/* must be called with BKL held */
|
||||
info("USB Serial deregistering driver %s", device->description);
|
||||
list_del(&device->driver_list);
|
||||
usb_serial_bus_deregister(device);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* If the usb-serial core is built into the core, the usb-serial drivers
|
||||
need these symbols to load properly as modules. */
|
||||
EXPORT_SYMBOL_GPL(usb_serial_register);
|
||||
EXPORT_SYMBOL_GPL(usb_serial_deregister);
|
||||
EXPORT_SYMBOL_GPL(usb_serial_probe);
|
||||
EXPORT_SYMBOL_GPL(usb_serial_disconnect);
|
||||
EXPORT_SYMBOL_GPL(usb_serial_port_softint);
|
||||
|
||||
|
||||
/* Module information */
|
||||
MODULE_AUTHOR( DRIVER_AUTHOR );
|
||||
MODULE_DESCRIPTION( DRIVER_DESC );
|
||||
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
||||
|
|
|
|||
Loading…
Reference in a new issue