*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <asm/uaccess.h>
#include <linux/usb.h>
+#include <linux/usb/serial.h>
static int debug;
#include "xircom_pgs_fw.h"
#endif
-#include "usb-serial.h"
-
/*
* Version Information
*/
int tx_throttled;
struct work_struct wakeup_work;
struct work_struct unthrottle_work;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
};
MODULE_DEVICE_TABLE (usb, id_table_combined);
static struct usb_driver keyspan_pda_driver = {
- .owner = THIS_MODULE,
.name = "keyspan_pda",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
static struct usb_device_id id_table_std [] = {
};
#endif
-static void keyspan_pda_wakeup_write( struct usb_serial_port *port )
+static void keyspan_pda_wakeup_write(struct work_struct *work)
{
-
+ struct keyspan_pda_private *priv =
+ container_of(work, struct keyspan_pda_private, wakeup_work);
+ struct usb_serial_port *port = priv->port;
struct tty_struct *tty = port->tty;
/* wake up port processes */
tty_wakeup(tty);
}
-static void keyspan_pda_request_unthrottle( struct usb_serial *serial )
+static void keyspan_pda_request_unthrottle(struct work_struct *work)
{
+ struct keyspan_pda_private *priv =
+ container_of(work, struct keyspan_pda_private, unthrottle_work);
+ struct usb_serial *serial = priv->serial;
int result;
dbg(" request_unthrottle");
}
-static void keyspan_pda_rx_interrupt (struct urb *urb, struct pt_regs *regs)
+static void keyspan_pda_rx_interrupt (struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct tty_struct *tty = port->tty;
static void keyspan_pda_set_termios (struct usb_serial_port *port,
- struct termios *old_termios)
+ struct ktermios *old_termios)
{
struct usb_serial *serial = port->serial;
unsigned int cflag = port->tty->termios->c_cflag;
the TX urb is in-flight (wait until it completes)
the device is full (wait until it says there is room)
*/
- if (port->write_urb->status == -EINPROGRESS || priv->tx_throttled ) {
- return( 0 );
+ spin_lock_bh(&port->lock);
+ if (port->write_urb_busy || priv->tx_throttled) {
+ spin_unlock_bh(&port->lock);
+ return 0;
}
+ port->write_urb_busy = 1;
+ spin_unlock_bh(&port->lock);
/* At this point the URB is in our control, nobody else can submit it
again (the only sudden transition was the one from EINPROGRESS to
memcpy (port->write_urb->transfer_buffer, buf, count);
/* send the data out the bulk port */
port->write_urb->transfer_buffer_length = count;
-
+
priv->tx_room -= count;
port->write_urb->dev = port->serial->dev;
rc = count;
exit:
+ if (rc < 0)
+ port->write_urb_busy = 0;
return rc;
}
-static void keyspan_pda_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
+static void keyspan_pda_write_bulk_callback (struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct keyspan_pda_private *priv;
+ port->write_urb_busy = 0;
priv = usb_get_serial_port_data(port);
/* queue up a wakeup at scheduler time */
static int keyspan_pda_chars_in_buffer (struct usb_serial_port *port)
{
struct keyspan_pda_private *priv;
-
+
priv = usb_get_serial_port_data(port);
-
+
/* when throttled, return at least WAKEUP_CHARS to tell select() (via
n_tty.c:normal_poll() ) that we're not writeable. */
- if( port->write_urb->status == -EINPROGRESS || priv->tx_throttled )
+ if (port->write_urb_busy || priv->tx_throttled)
return 256;
return 0;
}
return (1); /* error */
usb_set_serial_port_data(serial->port[0], priv);
init_waitqueue_head(&serial->port[0]->write_wait);
- INIT_WORK(&priv->wakeup_work, (void *)keyspan_pda_wakeup_write,
- (void *)(serial->port[0]));
- INIT_WORK(&priv->unthrottle_work,
- (void *)keyspan_pda_request_unthrottle,
- (void *)(serial));
+ INIT_WORK(&priv->wakeup_work, keyspan_pda_wakeup_write);
+ INIT_WORK(&priv->unthrottle_work, keyspan_pda_request_unthrottle);
+ priv->serial = serial;
+ priv->port = serial->port[0];
return (0);
}
}
#ifdef KEYSPAN
-static struct usb_serial_device_type keyspan_pda_fake_device = {
- .owner = THIS_MODULE,
- .name = "Keyspan PDA - (prerenumeration)",
- .short_name = "keyspan_pda_pre",
+static struct usb_serial_driver keyspan_pda_fake_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "keyspan_pda_pre",
+ },
+ .description = "Keyspan PDA - (prerenumeration)",
.id_table = id_table_fake,
.num_interrupt_in = NUM_DONT_CARE,
.num_bulk_in = NUM_DONT_CARE,
#endif
#ifdef XIRCOM
-static struct usb_serial_device_type xircom_pgs_fake_device = {
- .owner = THIS_MODULE,
- .name = "Xircom / Entregra PGS - (prerenumeration)",
- .short_name = "xircom_no_firm",
+static struct usb_serial_driver xircom_pgs_fake_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "xircom_no_firm",
+ },
+ .description = "Xircom / Entregra PGS - (prerenumeration)",
.id_table = id_table_fake_xircom,
.num_interrupt_in = NUM_DONT_CARE,
.num_bulk_in = NUM_DONT_CARE,
};
#endif
-static struct usb_serial_device_type keyspan_pda_device = {
- .owner = THIS_MODULE,
- .name = "Keyspan PDA",
- .short_name = "keyspan_pda",
+static struct usb_serial_driver keyspan_pda_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "keyspan_pda",
+ },
+ .description = "Keyspan PDA",
.id_table = id_table_std,
.num_interrupt_in = 1,
.num_bulk_in = 0,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff