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path: root/drivers/usb/serial/empeg.c
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Diffstat (limited to 'drivers/usb/serial/empeg.c')
-rw-r--r--drivers/usb/serial/empeg.c78
1 files changed, 30 insertions, 48 deletions
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index c5ec309..47ebdf5 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -31,7 +31,7 @@
* Moved MOD_DEC_USE_COUNT to end of empeg_close().
*
* (12/03/2000) gb
- * Added port->tty->ldisc.set_termios(port->tty, NULL) to empeg_open()
+ * Added port->port.tty->ldisc.set_termios(port->port.tty, NULL) to empeg_open()
* This notifies the tty driver that the termios have changed.
*
* (11/13/2000) gb
@@ -77,22 +77,18 @@ static int debug;
#define EMPEG_PRODUCT_ID 0x0001
/* function prototypes for an empeg-car player */
-static int empeg_open (struct usb_serial_port *port, struct file *filp);
-static void empeg_close (struct usb_serial_port *port, struct file *filp);
-static int empeg_write (struct usb_serial_port *port,
+static int empeg_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
+static void empeg_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
+static int empeg_write (struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf,
int count);
-static int empeg_write_room (struct usb_serial_port *port);
-static int empeg_chars_in_buffer (struct usb_serial_port *port);
-static void empeg_throttle (struct usb_serial_port *port);
-static void empeg_unthrottle (struct usb_serial_port *port);
+static int empeg_write_room (struct tty_struct *tty);
+static int empeg_chars_in_buffer (struct tty_struct *tty);
+static void empeg_throttle (struct tty_struct *tty);
+static void empeg_unthrottle (struct tty_struct *tty);
static int empeg_startup (struct usb_serial *serial);
static void empeg_shutdown (struct usb_serial *serial);
-static int empeg_ioctl (struct usb_serial_port *port,
- struct file * file,
- unsigned int cmd,
- unsigned long arg);
-static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);
+static void empeg_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios);
static void empeg_write_bulk_callback (struct urb *urb);
static void empeg_read_bulk_callback (struct urb *urb);
@@ -125,7 +121,6 @@ static struct usb_serial_driver empeg_device = {
.unthrottle = empeg_unthrottle,
.attach = empeg_startup,
.shutdown = empeg_shutdown,
- .ioctl = empeg_ioctl,
.set_termios = empeg_set_termios,
.write = empeg_write,
.write_room = empeg_write_room,
@@ -145,7 +140,8 @@ static int bytes_out;
/******************************************************************************
* Empeg specific driver functions
******************************************************************************/
-static int empeg_open (struct usb_serial_port *port, struct file *filp)
+static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port,
+ struct file *filp)
{
struct usb_serial *serial = port->serial;
int result = 0;
@@ -153,7 +149,7 @@ static int empeg_open (struct usb_serial_port *port, struct file *filp)
dbg("%s - port %d", __func__, port->number);
/* Force default termio settings */
- empeg_set_termios (port, NULL) ;
+ empeg_set_termios (tty, port, NULL) ;
bytes_in = 0;
bytes_out = 0;
@@ -178,7 +174,8 @@ static int empeg_open (struct usb_serial_port *port, struct file *filp)
}
-static void empeg_close (struct usb_serial_port *port, struct file * filp)
+static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port,
+ struct file * filp)
{
dbg("%s - port %d", __func__, port->number);
@@ -189,7 +186,7 @@ static void empeg_close (struct usb_serial_port *port, struct file * filp)
}
-static int empeg_write (struct usb_serial_port *port, const unsigned char *buf, int count)
+static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count)
{
struct usb_serial *serial = port->serial;
struct urb *urb;
@@ -203,7 +200,6 @@ static int empeg_write (struct usb_serial_port *port, const unsigned char *buf,
dbg("%s - port %d", __func__, port->number);
while (count > 0) {
-
/* try to find a free urb in our list of them */
urb = NULL;
@@ -262,15 +258,14 @@ static int empeg_write (struct usb_serial_port *port, const unsigned char *buf,
bytes_out += transfer_size;
}
-
exit:
return bytes_sent;
-
}
-static int empeg_write_room (struct usb_serial_port *port)
+static int empeg_write_room(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
unsigned long flags;
int i;
int room = 0;
@@ -278,25 +273,22 @@ static int empeg_write_room (struct usb_serial_port *port)
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave (&write_urb_pool_lock, flags);
-
/* tally up the number of bytes available */
for (i = 0; i < NUM_URBS; ++i) {
if (write_urb_pool[i]->status != -EINPROGRESS) {
room += URB_TRANSFER_BUFFER_SIZE;
}
}
-
spin_unlock_irqrestore (&write_urb_pool_lock, flags);
-
dbg("%s - returns %d", __func__, room);
-
- return (room);
+ return room;
}
-static int empeg_chars_in_buffer (struct usb_serial_port *port)
+static int empeg_chars_in_buffer(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
unsigned long flags;
int i;
int chars = 0;
@@ -356,7 +348,7 @@ static void empeg_read_bulk_callback (struct urb *urb)
usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
- tty = port->tty;
+ tty = port->port.tty;
if (urb->actual_length) {
tty_buffer_request_room(tty, urb->actual_length);
@@ -386,27 +378,24 @@ static void empeg_read_bulk_callback (struct urb *urb)
}
-static void empeg_throttle (struct usb_serial_port *port)
+static void empeg_throttle(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
usb_kill_urb(port->read_urb);
}
-static void empeg_unthrottle (struct usb_serial_port *port)
+static void empeg_unthrottle(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
int result;
-
dbg("%s - port %d", __func__, port->number);
port->read_urb->dev = port->serial->dev;
-
result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
-
if (result)
dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result);
-
- return;
}
@@ -436,17 +425,10 @@ static void empeg_shutdown (struct usb_serial *serial)
}
-static int empeg_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
-{
- dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
-
- return -ENOIOCTLCMD;
-}
-
-
-static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *old_termios)
+static void empeg_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
- struct ktermios *termios = port->tty->termios;
+ struct ktermios *termios = tty->termios;
dbg("%s - port %d", __func__, port->number);
/*
@@ -491,8 +473,8 @@ static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *ol
* this is bad as it opens up the possibility of dropping bytes
* on the floor. We don't want to drop bytes on the floor. :)
*/
- port->tty->low_latency = 1;
- tty_encode_baud_rate(port->tty, 115200, 115200);
+ tty->low_latency = 1;
+ tty_encode_baud_rate(tty, 115200, 115200);
}
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