]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/usb/serial/kl5kusb105.c
tty: usb-serial krefs
[linux-2.6-omap-h63xx.git] / drivers / usb / serial / kl5kusb105.c
index f328948d74e3dfc9cf21439333ef48140eff1af9..ff3a07f5102fe11a70e11bfc5c3959116b814d78 100644 (file)
  * Neither Palm, nor their contractor (MCCI) or their supplier (KLSI) provided
  * information that was not already available.
  *
- * It seems that KLSI bought some silicon-design information from ScanLogic, 
+ * It seems that KLSI bought some silicon-design information from ScanLogic,
  * whose SL11R processor is at the core of the KL5KUSB chipset from KLSI.
  * KLSI has firmware available for their devices; it is probable that the
  * firmware differs from that used by KLSI in their products. If you have an
- * original KLSI device and can provide some information on it, I would be 
- * most interested in adding support for it here. If you have any information 
+ * original KLSI device and can provide some information on it, I would be
+ * most interested in adding support for it here. If you have any information
  * on the protocol used (or find errors in my reverse-engineered stuff), please
  * let me know.
  *
@@ -40,7 +40,7 @@
  *   0.2  - TIOCMGET works, so autopilot(1) can be used!
  *   0.1  - can be used to to pilot-xfer -p /dev/ttyUSB0 -l
  *
- *   The driver skeleton is mainly based on mct_u232.c and various other 
+ *   The driver skeleton is mainly based on mct_u232.c and various other
  *   pieces of code shamelessly copied from the drivers/usb/serial/ directory.
  */
 
@@ -53,7 +53,7 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 #include <linux/module.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
@@ -72,33 +72,25 @@ static int debug;
 /*
  * Function prototypes
  */
-static int  klsi_105_startup            (struct usb_serial *serial);
-static void klsi_105_shutdown           (struct usb_serial *serial);
-static int  klsi_105_open               (struct usb_serial_port *port,
-                                         struct file *filp);
-static void klsi_105_close              (struct usb_serial_port *port,
-                                         struct file *filp);
-static int  klsi_105_write              (struct usb_serial_port *port,
-                                         const unsigned char *buf,
-                                         int count);
-static void klsi_105_write_bulk_callback (struct urb *urb);
-static int  klsi_105_chars_in_buffer     (struct usb_serial_port *port);
-static int  klsi_105_write_room          (struct usb_serial_port *port);
-
-static void klsi_105_read_bulk_callback  (struct urb *urb);
-static void klsi_105_set_termios         (struct usb_serial_port *port,
-                                         struct ktermios *old);
-static void klsi_105_throttle           (struct usb_serial_port *port);
-static void klsi_105_unthrottle                 (struct usb_serial_port *port);
-/*
-static void klsi_105_break_ctl          (struct usb_serial_port *port,
-                                         int break_state );
- */
-static int  klsi_105_tiocmget           (struct usb_serial_port *port,
-                                         struct file *file);
-static int  klsi_105_tiocmset           (struct usb_serial_port *port,
-                                         struct file *file, unsigned int set,
-                                         unsigned int clear);
+static int  klsi_105_startup(struct usb_serial *serial);
+static void klsi_105_shutdown(struct usb_serial *serial);
+static int  klsi_105_open(struct tty_struct *tty,
+                       struct usb_serial_port *port, struct file *filp);
+static void klsi_105_close(struct tty_struct *tty,
+                       struct usb_serial_port *port, struct file *filp);
+static int  klsi_105_write(struct tty_struct *tty,
+       struct usb_serial_port *port, const unsigned char *buf, int count);
+static void klsi_105_write_bulk_callback(struct urb *urb);
+static int  klsi_105_chars_in_buffer(struct tty_struct *tty);
+static int  klsi_105_write_room(struct tty_struct *tty);
+static void klsi_105_read_bulk_callback(struct urb *urb);
+static void klsi_105_set_termios(struct tty_struct *tty,
+                       struct usb_serial_port *port, struct ktermios *old);
+static void klsi_105_throttle(struct tty_struct *tty);
+static void klsi_105_unthrottle(struct tty_struct *tty);
+static int  klsi_105_tiocmget(struct tty_struct *tty, struct file *file);
+static int  klsi_105_tiocmset(struct tty_struct *tty, struct file *file,
+                       unsigned int set, unsigned int clear);
 
 /*
  * All of the device info needed for the KLSI converters.
@@ -109,7 +101,7 @@ static struct usb_device_id id_table [] = {
        { }             /* Terminating entry */
 };
 
-MODULE_DEVICE_TABLE (usb, id_table);
+MODULE_DEVICE_TABLE(usb, id_table);
 
 static struct usb_driver kl5kusb105d_driver = {
        .name =         "kl5kusb105d",
@@ -134,7 +126,7 @@ static struct usb_serial_driver kl5kusb105d_device = {
        .write_bulk_callback = klsi_105_write_bulk_callback,
        .chars_in_buffer =   klsi_105_chars_in_buffer,
        .write_room =        klsi_105_write_room,
-       .read_bulk_callback =klsi_105_read_bulk_callback,
+       .read_bulk_callback = klsi_105_read_bulk_callback,
        .set_termios =       klsi_105_set_termios,
        /*.break_ctl =       klsi_105_break_ctl,*/
        .tiocmget =          klsi_105_tiocmget,
@@ -161,7 +153,7 @@ struct klsi_105_private {
        struct ktermios                 termios;
        unsigned long                   line_state; /* modem line settings */
        /* write pool */
-       struct urb *                    write_urb_pool[NUM_URBS];
+       struct urb                      *write_urb_pool[NUM_URBS];
        spinlock_t                      lock;
        unsigned long                   bytes_in;
        unsigned long                   bytes_out;
@@ -180,15 +172,15 @@ static int klsi_105_chg_port_settings(struct usb_serial_port *port,
 {
        int rc;
 
-        rc = usb_control_msg(port->serial->dev,
-                            usb_sndctrlpipe(port->serial->dev, 0),
-                            KL5KUSB105A_SIO_SET_DATA,
-                             USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_INTERFACE,
-                            0, /* value */
-                            0, /* index */
-                            settings,
-                            sizeof(struct klsi_105_port_settings),
-                            KLSI_TIMEOUT);
+       rc = usb_control_msg(port->serial->dev,
+                       usb_sndctrlpipe(port->serial->dev, 0),
+                       KL5KUSB105A_SIO_SET_DATA,
+                       USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_INTERFACE,
+                       0, /* value */
+                       0, /* index */
+                       settings,
+                       sizeof(struct klsi_105_port_settings),
+                       KLSI_TIMEOUT);
        if (rc < 0)
                err("Change port settings failed (error = %d)", rc);
        info("%s - %d byte block, baudrate %x, databits %d, u1 %d, u2 %d",
@@ -196,7 +188,7 @@ static int klsi_105_chg_port_settings(struct usb_serial_port *port,
            settings->pktlen,
            settings->baudrate, settings->databits,
            settings->unknown1, settings->unknown2);
-        return rc;
+       return rc;
 } /* klsi_105_chg_port_settings */
 
 /* translate a 16-bit status value from the device to linux's TIO bits */
@@ -210,9 +202,9 @@ static unsigned long klsi_105_status2linestate(const __u16 status)
 
        return res;
 }
-/* 
+/*
  * Read line control via vendor command and return result through
- * *line_state_p 
+ * *line_state_p
  */
 /* It seems that the status buffer has always only 2 bytes length */
 #define KLSI_STATUSBUF_LEN     2
@@ -220,14 +212,14 @@ static int klsi_105_get_line_state(struct usb_serial_port *port,
                                   unsigned long *line_state_p)
 {
        int rc;
-       __u8 status_buf[KLSI_STATUSBUF_LEN] = { -1,-1};
+       __u8 status_buf[KLSI_STATUSBUF_LEN] = { -1, -1};
        __u16 status;
 
        info("%s - sending SIO Poll request", __func__);
-        rc = usb_control_msg(port->serial->dev,
+       rc = usb_control_msg(port->serial->dev,
                             usb_rcvctrlpipe(port->serial->dev, 0),
                             KL5KUSB105A_SIO_POLL,
-                             USB_TYPE_VENDOR | USB_DIR_IN,
+                            USB_TYPE_VENDOR | USB_DIR_IN,
                             0, /* value */
                             0, /* index */
                             status_buf, KLSI_STATUSBUF_LEN,
@@ -236,15 +228,14 @@ static int klsi_105_get_line_state(struct usb_serial_port *port,
        if (rc < 0)
                err("Reading line status failed (error = %d)", rc);
        else {
-               status = le16_to_cpu(get_unaligned((__le16 *)status_buf));
+               status = get_unaligned_le16(status_buf);
 
                info("%s - read status %x %x", __func__,
                     status_buf[0], status_buf[1]);
 
                *line_state_p = klsi_105_status2linestate(status);
        }
-
-        return rc;
+       return rc;
 }
 
 
@@ -252,7 +243,7 @@ static int klsi_105_get_line_state(struct usb_serial_port *port,
  * Driver's tty interface functions
  */
 
-static int klsi_105_startup (struct usb_serial *serial)
+static int klsi_105_startup(struct usb_serial *serial)
 {
        struct klsi_105_private *priv;
        int i, j;
@@ -262,7 +253,7 @@ static int klsi_105_startup (struct usb_serial *serial)
         */
 
        /* allocate the private data structure */
-       for (i=0; i<serial->num_ports; i++) {
+       for (i = 0; i < serial->num_ports; i++) {
                priv = kmalloc(sizeof(struct klsi_105_private),
                                                   GFP_KERNEL);
                if (!priv) {
@@ -283,9 +274,9 @@ static int klsi_105_startup (struct usb_serial *serial)
                priv->bytes_out     = 0;
                usb_set_serial_port_data(serial->port[i], priv);
 
-               spin_lock_init (&priv->lock);
-               for (j=0; j<NUM_URBS; j++) {
-                       struct urburb = usb_alloc_urb(0, GFP_KERNEL);
+               spin_lock_init(&priv->lock);
+               for (j = 0; j < NUM_URBS; j++) {
+                       struct urb *urb = usb_alloc_urb(0, GFP_KERNEL);
 
                        priv->write_urb_pool[j] = urb;
                        if (urb == NULL) {
@@ -293,10 +284,11 @@ static int klsi_105_startup (struct usb_serial *serial)
                                goto err_cleanup;
                        }
 
-                       urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE,
-                                                       GFP_KERNEL);
+                       urb->transfer_buffer =
+                               kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
                        if (!urb->transfer_buffer) {
-                               err("%s - out of memory for urb buffers.", __func__);
+                               err("%s - out of memory for urb buffers.",
+                                                               __func__);
                                goto err_cleanup;
                        }
                }
@@ -304,13 +296,13 @@ static int klsi_105_startup (struct usb_serial *serial)
                /* priv->termios is left uninitalized until port opening */
                init_waitqueue_head(&serial->port[i]->write_wait);
        }
-       
+
        return 0;
 
 err_cleanup:
        for (; i >= 0; i--) {
                priv = usb_get_serial_port_data(serial->port[i]);
-               for (j=0; j < NUM_URBS; j++) {
+               for (j = 0; j < NUM_URBS; j++) {
                        if (priv->write_urb_pool[j]) {
                                kfree(priv->write_urb_pool[j]->transfer_buffer);
                                usb_free_urb(priv->write_urb_pool[j]);
@@ -322,22 +314,23 @@ err_cleanup:
 } /* klsi_105_startup */
 
 
-static void klsi_105_shutdown (struct usb_serial *serial)
+static void klsi_105_shutdown(struct usb_serial *serial)
 {
        int i;
-       
+
        dbg("%s", __func__);
 
        /* stop reads and writes on all ports */
-       for (i=0; i < serial->num_ports; ++i) {
-               struct klsi_105_private *priv = usb_get_serial_port_data(serial->port[i]);
+       for (i = 0; i < serial->num_ports; ++i) {
+               struct klsi_105_private *priv =
+                               usb_get_serial_port_data(serial->port[i]);
                unsigned long flags;
 
                if (priv) {
                        /* kill our write urb pool */
                        int j;
                        struct urb **write_urbs = priv->write_urb_pool;
-                       spin_lock_irqsave(&priv->lock,flags);
+                       spin_lock_irqsave(&priv->lock, flags);
 
                        for (j = 0; j < NUM_URBS; j++) {
                                if (write_urbs[j]) {
@@ -349,19 +342,18 @@ static void klsi_105_shutdown (struct usb_serial *serial)
                                         * oopses. */
                                        /* usb_kill_urb(write_urbs[j]); */
                                        kfree(write_urbs[j]->transfer_buffer);
-                                       usb_free_urb (write_urbs[j]);
+                                       usb_free_urb(write_urbs[j]);
                                }
                        }
-
-                       spin_unlock_irqrestore (&priv->lock, flags);
-
+                       spin_unlock_irqrestore(&priv->lock, flags);
                        kfree(priv);
                        usb_set_serial_port_data(serial->port[i], NULL);
                }
        }
 } /* klsi_105_shutdown */
 
-static int  klsi_105_open (struct usb_serial_port *port, struct file *filp)
+static int  klsi_105_open(struct tty_struct *tty,
+                       struct usb_serial_port *port, struct file *filp)
 {
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
        int retval = 0;
@@ -375,11 +367,11 @@ static int  klsi_105_open (struct usb_serial_port *port, struct file *filp)
 
        /* force low_latency on so that our tty_push actually forces
         * the data through
-        * port->tty->low_latency = 1; */
+        * tty->low_latency = 1; */
 
        /* Do a defined restart:
         * Set up sane default baud rate and send the 'READ_ON'
-        * vendor command. 
+        * vendor command.
         * FIXME: set modem line control (how?)
         * Then read the modem line control and store values in
         * priv->line_state.
@@ -390,24 +382,24 @@ static int  klsi_105_open (struct usb_serial_port *port, struct file *filp)
        cfg.unknown1 = 0;
        cfg.unknown2 = 1;
        klsi_105_chg_port_settings(port, &cfg);
-       
+
        /* set up termios structure */
-       spin_lock_irqsave (&priv->lock, flags);
-       priv->termios.c_iflag = port->tty->termios->c_iflag;
-       priv->termios.c_oflag = port->tty->termios->c_oflag;
-       priv->termios.c_cflag = port->tty->termios->c_cflag;
-       priv->termios.c_lflag = port->tty->termios->c_lflag;
-       for (i=0; i<NCCS; i++)
-               priv->termios.c_cc[i] = port->tty->termios->c_cc[i];
+       spin_lock_irqsave(&priv->lock, flags);
+       priv->termios.c_iflag = tty->termios->c_iflag;
+       priv->termios.c_oflag = tty->termios->c_oflag;
+       priv->termios.c_cflag = tty->termios->c_cflag;
+       priv->termios.c_lflag = tty->termios->c_lflag;
+       for (i = 0; i < NCCS; i++)
+               priv->termios.c_cc[i] = tty->termios->c_cc[i];
        priv->cfg.pktlen   = cfg.pktlen;
        priv->cfg.baudrate = cfg.baudrate;
        priv->cfg.databits = cfg.databits;
        priv->cfg.unknown1 = cfg.unknown1;
        priv->cfg.unknown2 = cfg.unknown2;
-       spin_unlock_irqrestore (&priv->lock, flags);
+       spin_unlock_irqrestore(&priv->lock, flags);
 
        /* READ_ON and urb submission */
-       usb_fill_bulk_urb(port->read_urb, port->serial->dev, 
+       usb_fill_bulk_urb(port->read_urb, port->serial->dev,
                      usb_rcvbulkpipe(port->serial->dev,
                                      port->bulk_in_endpointAddress),
                      port->read_urb->transfer_buffer,
@@ -423,7 +415,7 @@ static int  klsi_105_open (struct usb_serial_port *port, struct file *filp)
        }
 
        rc = usb_control_msg(port->serial->dev,
-                            usb_sndctrlpipe(port->serial->dev,0),
+                            usb_sndctrlpipe(port->serial->dev, 0),
                             KL5KUSB105A_SIO_CONFIGURE,
                             USB_TYPE_VENDOR|USB_DIR_OUT|USB_RECIP_INTERFACE,
                             KL5KUSB105A_SIO_CONFIGURE_READ_ON,
@@ -434,14 +426,14 @@ static int  klsi_105_open (struct usb_serial_port *port, struct file *filp)
        if (rc < 0) {
                err("Enabling read failed (error = %d)", rc);
                retval = rc;
-       } else 
+       } else
                dbg("%s - enabled reading", __func__);
 
        rc = klsi_105_get_line_state(port, &line_state);
        if (rc >= 0) {
-               spin_lock_irqsave (&priv->lock, flags);
+               spin_lock_irqsave(&priv->lock, flags);
                priv->line_state = line_state;
-               spin_unlock_irqrestore (&priv->lock, flags);
+               spin_unlock_irqrestore(&priv->lock, flags);
                dbg("%s - read line state 0x%lx", __func__, line_state);
                retval = 0;
        } else
@@ -452,7 +444,8 @@ exit:
 } /* klsi_105_open */
 
 
-static void klsi_105_close (struct usb_serial_port *port, struct file *filp)
+static void klsi_105_close(struct tty_struct *tty,
+                       struct usb_serial_port *port, struct file *filp)
 {
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
        int rc;
@@ -462,14 +455,14 @@ static void klsi_105_close (struct usb_serial_port *port, struct file *filp)
        mutex_lock(&port->serial->disc_mutex);
        if (!port->serial->disconnected) {
                /* send READ_OFF */
-               rc = usb_control_msg (port->serial->dev,
-                                     usb_sndctrlpipe(port->serial->dev, 0),
-                                     KL5KUSB105A_SIO_CONFIGURE,
-                                     USB_TYPE_VENDOR | USB_DIR_OUT,
-                                     KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
-                                     0, /* index */
-                                     NULL, 0,
-                                     KLSI_TIMEOUT);
+               rc = usb_control_msg(port->serial->dev,
+                                    usb_sndctrlpipe(port->serial->dev, 0),
+                                    KL5KUSB105A_SIO_CONFIGURE,
+                                    USB_TYPE_VENDOR | USB_DIR_OUT,
+                                    KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
+                                    0, /* index */
+                                    NULL, 0,
+                                    KLSI_TIMEOUT);
                if (rc < 0)
                        err("Disabling read failed (error = %d)", rc);
        }
@@ -482,23 +475,24 @@ static void klsi_105_close (struct usb_serial_port *port, struct file *filp)
        /* FIXME */
        /* wgg - do I need this? I think so. */
        usb_kill_urb(port->interrupt_in_urb);
-       info("kl5kusb105 port stats: %ld bytes in, %ld bytes out", priv->bytes_in, priv->bytes_out);
+       info("kl5kusb105 port stats: %ld bytes in, %ld bytes out",
+                                       priv->bytes_in, priv->bytes_out);
 } /* klsi_105_close */
 
 
 /* We need to write a complete 64-byte data block and encode the
- * number actually sent in the first double-byte, LSB-order. That 
+ * number actually sent in the first double-byte, LSB-order. That
  * leaves at most 62 bytes of payload.
  */
 #define KLSI_105_DATA_OFFSET   2   /* in the bulk urb data block */
 
 
-static int klsi_105_write (struct usb_serial_port *port,
-                          const unsigned char *buf, int count)
+static int klsi_105_write(struct tty_struct *tty,
+       struct usb_serial_port *port, const unsigned char *buf, int count)
 {
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
        int result, size;
-       int bytes_sent=0;
+       int bytes_sent = 0;
 
        dbg("%s - port %d", __func__, port->number);
 
@@ -507,34 +501,37 @@ static int klsi_105_write (struct usb_serial_port *port,
                struct urb *urb = NULL;
                unsigned long flags;
                int i;
-               /* since the pool is per-port we might not need the spin lock !? */
-               spin_lock_irqsave (&priv->lock, flags);
-               for (i=0; i<NUM_URBS; i++) {
+               /* since the pool is per-port we might not need
+                  the spin lock !? */
+               spin_lock_irqsave(&priv->lock, flags);
+               for (i = 0; i < NUM_URBS; i++) {
                        if (priv->write_urb_pool[i]->status != -EINPROGRESS) {
                                urb = priv->write_urb_pool[i];
                                dbg("%s - using pool URB %d", __func__, i);
                                break;
                        }
                }
-               spin_unlock_irqrestore (&priv->lock, flags);
+               spin_unlock_irqrestore(&priv->lock, flags);
 
-               if (urb==NULL) {
+               if (urb == NULL) {
                        dbg("%s - no more free urbs", __func__);
                        goto exit;
                }
 
                if (urb->transfer_buffer == NULL) {
-                       urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC);
+                       urb->transfer_buffer =
+                               kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC);
                        if (urb->transfer_buffer == NULL) {
                                err("%s - no more kernel memory...", __func__);
                                goto exit;
                        }
                }
 
-               size = min (count, port->bulk_out_size - KLSI_105_DATA_OFFSET);
-               size = min (size, URB_TRANSFER_BUFFER_SIZE - KLSI_105_DATA_OFFSET);
+               size = min(count, port->bulk_out_size - KLSI_105_DATA_OFFSET);
+               size = min(size, URB_TRANSFER_BUFFER_SIZE -
+                                                       KLSI_105_DATA_OFFSET);
 
-               memcpy (urb->transfer_buffer + KLSI_105_DATA_OFFSET, buf, size);
+               memcpy(urb->transfer_buffer + KLSI_105_DATA_OFFSET, buf, size);
 
                /* write payload size into transfer buffer */
                ((__u8 *)urb->transfer_buffer)[0] = (__u8) (size & 0xFF);
@@ -552,7 +549,8 @@ static int klsi_105_write (struct usb_serial_port *port,
                /* send the data out the bulk port */
                result = usb_submit_urb(urb, GFP_ATOMIC);
                if (result) {
-                       err("%s - failed submitting write urb, error %d", __func__, result);
+                       err("%s - failed submitting write urb, error %d",
+                                                       __func__, result);
                        goto exit;
                }
                buf += size;
@@ -561,12 +559,12 @@ static int klsi_105_write (struct usb_serial_port *port,
        }
 exit:
        /* lockless, but it's for debug info only... */
-       priv->bytes_out+=bytes_sent;
+       priv->bytes_out += bytes_sent;
 
        return bytes_sent;      /* that's how much we wrote */
 } /* klsi_105_write */
 
-static void klsi_105_write_bulk_callback ( struct urb *urb)
+static void klsi_105_write_bulk_callback(struct urb *urb)
 {
        struct usb_serial_port *port = urb->context;
        int status = urb->status;
@@ -584,50 +582,50 @@ static void klsi_105_write_bulk_callback ( struct urb *urb)
 
 
 /* return number of characters currently in the writing process */
-static int klsi_105_chars_in_buffer (struct usb_serial_port *port)
+static int klsi_105_chars_in_buffer(struct tty_struct *tty)
 {
+       struct usb_serial_port *port = tty->driver_data;
        int chars = 0;
        int i;
        unsigned long flags;
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
 
-       spin_lock_irqsave (&priv->lock, flags);
+       spin_lock_irqsave(&priv->lock, flags);
 
        for (i = 0; i < NUM_URBS; ++i) {
-               if (priv->write_urb_pool[i]->status == -EINPROGRESS) {
+               if (priv->write_urb_pool[i]->status == -EINPROGRESS)
                        chars += URB_TRANSFER_BUFFER_SIZE;
-               }
        }
 
-       spin_unlock_irqrestore (&priv->lock, flags);
+       spin_unlock_irqrestore(&priv->lock, flags);
 
        dbg("%s - returns %d", __func__, chars);
-       return (chars);
+       return chars;
 }
 
-static int klsi_105_write_room (struct usb_serial_port *port)
+static int klsi_105_write_room(struct tty_struct *tty)
 {
+       struct usb_serial_port *port = tty->driver_data;
        unsigned long flags;
        int i;
        int room = 0;
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
 
-       spin_lock_irqsave (&priv->lock, flags);
+       spin_lock_irqsave(&priv->lock, flags);
        for (i = 0; i < NUM_URBS; ++i) {
-               if (priv->write_urb_pool[i]->status != -EINPROGRESS) {
+               if (priv->write_urb_pool[i]->status != -EINPROGRESS)
                        room += URB_TRANSFER_BUFFER_SIZE;
-               }
        }
 
-       spin_unlock_irqrestore (&priv->lock, flags);
+       spin_unlock_irqrestore(&priv->lock, flags);
 
        dbg("%s - returns %d", __func__, room);
-       return (room);
+       return room;
 }
 
 
 
-static void klsi_105_read_bulk_callback (struct urb *urb)
+static void klsi_105_read_bulk_callback(struct urb *urb)
 {
        struct usb_serial_port *port = urb->context;
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
@@ -660,13 +658,13 @@ static void klsi_105_read_bulk_callback (struct urb *urb)
        } else {
                int bytes_sent = ((__u8 *) data)[0] +
                                 ((unsigned int) ((__u8 *) data)[1] << 8);
-               tty = port->tty;
+               tty = tty_port_tty_get(&port->port);
                /* we should immediately resubmit the URB, before attempting
                 * to pass the data on to the tty layer. But that needs locking
                 * against re-entry an then mixed-up data because of
                 * intermixed tty_flip_buffer_push()s
                 * FIXME
-                */ 
+                */
                usb_serial_debug_data(debug, &port->dev, __func__,
                                      urb->actual_length, data);
 
@@ -681,12 +679,13 @@ static void klsi_105_read_bulk_callback (struct urb *urb)
                tty_buffer_request_room(tty, bytes_sent);
                tty_insert_flip_string(tty, data + 2, bytes_sent);
                tty_flip_buffer_push(tty);
+               tty_kref_put(tty);
 
                /* again lockless, but debug info only */
                priv->bytes_in += bytes_sent;
        }
        /* Continue trying to always read  */
-       usb_fill_bulk_urb(port->read_urb, port->serial->dev, 
+       usb_fill_bulk_urb(port->read_urb, port->serial->dev,
                      usb_rcvbulkpipe(port->serial->dev,
                                      port->bulk_in_endpointAddress),
                      port->read_urb->transfer_buffer,
@@ -695,15 +694,16 @@ static void klsi_105_read_bulk_callback (struct urb *urb)
                      port);
        rc = usb_submit_urb(port->read_urb, GFP_ATOMIC);
        if (rc)
-               err("%s - failed resubmitting read urb, error %d", __func__, rc);
+               err("%s - failed resubmitting read urb, error %d",
+                                                       __func__, rc);
 } /* klsi_105_read_bulk_callback */
 
 
-static void klsi_105_set_termios (struct usb_serial_port *port,
-                                 struct ktermios *old_termios)
+static void klsi_105_set_termios(struct tty_struct *tty,
+                                struct usb_serial_port *port,
+                                struct ktermios *old_termios)
 {
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
-       struct tty_struct *tty = port->tty;
        unsigned int iflag = tty->termios->c_iflag;
        unsigned int old_iflag = old_termios->c_iflag;
        unsigned int cflag = tty->termios->c_cflag;
@@ -711,65 +711,63 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
        struct klsi_105_port_settings cfg;
        unsigned long flags;
        speed_t baud;
-       
+
        /* lock while we are modifying the settings */
-       spin_lock_irqsave (&priv->lock, flags);
-       
+       spin_lock_irqsave(&priv->lock, flags);
+
        /*
         * Update baud rate
         */
        baud = tty_get_baud_rate(tty);
 
-       if( (cflag & CBAUD) != (old_cflag & CBAUD) ) {
-               /* reassert DTR and (maybe) RTS on transition from B0 */
-               if( (old_cflag & CBAUD) == B0 ) {
+       if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
+               /* reassert DTR and (maybe) RTS on transition from B0 */
+               if ((old_cflag & CBAUD) == B0) {
                        dbg("%s: baud was B0", __func__);
 #if 0
                        priv->control_state |= TIOCM_DTR;
                        /* don't set RTS if using hardware flow control */
-                       if (!(old_cflag & CRTSCTS)) {
+                       if (!(old_cflag & CRTSCTS))
                                priv->control_state |= TIOCM_RTS;
-                       }
                        mct_u232_set_modem_ctrl(serial, priv->control_state);
 #endif
                }
        }
-       switch(baud) {
-               case 0: /* handled below */
-                       break;
-               case 1200:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b1200;
-                       break;
-               case 2400:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b2400;
-                       break;
-               case 4800:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b4800;
-                       break;
-               case 9600:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b9600;
-                       break;
-               case 19200:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b19200;
-                       break;
-               case 38400:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b38400;
-                       break;
-               case 57600:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b57600;
-                       break;
-               case 115200:
-                       priv->cfg.baudrate = kl5kusb105a_sio_b115200;
-                       break;
-               default:
-                       dbg("KLSI USB->Serial converter:"
-                           " unsupported baudrate request, using default"
-                           " of 9600");
+       switch (baud) {
+       case 0: /* handled below */
+               break;
+       case 1200:
+               priv->cfg.baudrate = kl5kusb105a_sio_b1200;
+               break;
+       case 2400:
+               priv->cfg.baudrate = kl5kusb105a_sio_b2400;
+               break;
+       case 4800:
+               priv->cfg.baudrate = kl5kusb105a_sio_b4800;
+               break;
+       case 9600:
+               priv->cfg.baudrate = kl5kusb105a_sio_b9600;
+               break;
+       case 19200:
+               priv->cfg.baudrate = kl5kusb105a_sio_b19200;
+               break;
+       case 38400:
+               priv->cfg.baudrate = kl5kusb105a_sio_b38400;
+               break;
+       case 57600:
+               priv->cfg.baudrate = kl5kusb105a_sio_b57600;
+               break;
+       case 115200:
+               priv->cfg.baudrate = kl5kusb105a_sio_b115200;
+               break;
+       default:
+               dbg("KLSI USB->Serial converter:"
+                   " unsupported baudrate request, using default of 9600");
                        priv->cfg.baudrate = kl5kusb105a_sio_b9600;
-                       baud = 9600;
-                       break;
+               baud = 9600;
+               break;
        }
-       if ((cflag & CBAUD) == B0 ) {
+       if ((cflag & CBAUD) == B0) {
                dbg("%s: baud is B0", __func__);
                /* Drop RTS and DTR */
                /* maybe this should be simulated by sending read
@@ -778,7 +776,7 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
                ;
 #if 0
                priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
-                       mct_u232_set_modem_ctrl(serial, priv->control_state);
+               mct_u232_set_modem_ctrl(serial, priv->control_state);
 #endif
        }
        tty_encode_baud_rate(tty, baud, baud);
@@ -788,11 +786,11 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
                switch (cflag & CSIZE) {
                case CS5:
                        dbg("%s - 5 bits/byte not supported", __func__);
-                       spin_unlock_irqrestore (&priv->lock, flags);
+                       spin_unlock_irqrestore(&priv->lock, flags);
                        return ;
                case CS6:
                        dbg("%s - 6 bits/byte not supported", __func__);
-                       spin_unlock_irqrestore (&priv->lock, flags);
+                       spin_unlock_irqrestore(&priv->lock, flags);
                        return ;
                case CS7:
                        priv->cfg.databits = kl5kusb105a_dtb_7;
@@ -811,8 +809,7 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
         * Update line control register (LCR)
         */
        if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))
-           || (cflag & CSTOPB) != (old_cflag & CSTOPB) ) {
-               
+           || (cflag & CSTOPB) != (old_cflag & CSTOPB)) {
                /* Not currently supported */
                tty->termios->c_cflag &= ~(PARENB|PARODD|CSTOPB);
 #if 0
@@ -833,20 +830,18 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
 #endif
                ;
        }
-       
        /*
         * Set flow control: well, I do not really now how to handle DTR/RTS.
         * Just do what we have seen with SniffUSB on Win98.
         */
-       if(iflag & IXOFF) != (old_iflag & IXOFF)
+       if ((iflag & IXOFF) != (old_iflag & IXOFF)
            || (iflag & IXON) != (old_iflag & IXON)
-           ||  (cflag & CRTSCTS) != (old_cflag & CRTSCTS) ) {
-               
+           ||  (cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
                /* Not currently supported */
                tty->termios->c_cflag &= ~CRTSCTS;
                /* Drop DTR/RTS if no flow control otherwise assert */
 #if 0
-               if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS) )
+               if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS))
                        priv->control_state |= TIOCM_DTR | TIOCM_RTS;
                else
                        priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
@@ -854,19 +849,21 @@ static void klsi_105_set_termios (struct usb_serial_port *port,
 #endif
                ;
        }
-       memcpy (&cfg, &priv->cfg, sizeof(cfg));
-       spin_unlock_irqrestore (&priv->lock, flags);
-       
+       memcpy(&cfg, &priv->cfg, sizeof(cfg));
+       spin_unlock_irqrestore(&priv->lock, flags);
+
        /* now commit changes to device */
        klsi_105_chg_port_settings(port, &cfg);
 } /* klsi_105_set_termios */
 
 
 #if 0
-static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state )
+static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
 {
+       struct usb_serial_port *port = tty->driver_data;
        struct usb_serial *serial = port->serial;
-       struct mct_u232_private *priv = (struct mct_u232_private *)port->private;
+       struct mct_u232_private *priv =
+                               (struct mct_u232_private *)port->private;
        unsigned char lcr = priv->last_lcr;
 
        dbg("%sstate=%d", __func__, break_state);
@@ -878,8 +875,9 @@ static void mct_u232_break_ctl( struct usb_serial_port *port, int break_state )
 } /* mct_u232_break_ctl */
 #endif
 
-static int klsi_105_tiocmget (struct usb_serial_port *port, struct file *file)
+static int klsi_105_tiocmget(struct tty_struct *tty, struct file *file)
 {
+       struct usb_serial_port *port = tty->driver_data;
        struct klsi_105_private *priv = usb_get_serial_port_data(port);
        unsigned long flags;
        int rc;
@@ -893,18 +891,18 @@ static int klsi_105_tiocmget (struct usb_serial_port *port, struct file *file)
                return rc;
        }
 
-       spin_lock_irqsave (&priv->lock, flags);
+       spin_lock_irqsave(&priv->lock, flags);
        priv->line_state = line_state;
-       spin_unlock_irqrestore (&priv->lock, flags);
+       spin_unlock_irqrestore(&priv->lock, flags);
        dbg("%s - read line state 0x%lx", __func__, line_state);
        return (int)line_state;
 }
 
-static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file,
-                             unsigned int set, unsigned int clear)
+static int klsi_105_tiocmset(struct tty_struct *tty, struct file *file,
+                            unsigned int set, unsigned int clear)
 {
        int retval = -EINVAL;
-       
+
        dbg("%s", __func__);
 
 /* if this ever gets implemented, it should be done something like this:
@@ -929,14 +927,16 @@ static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file,
        return retval;
 }
 
-static void klsi_105_throttle (struct usb_serial_port *port)
+static void klsi_105_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 klsi_105_unthrottle (struct usb_serial_port *port)
+static void klsi_105_unthrottle(struct tty_struct *tty)
 {
+       struct usb_serial_port *port = tty->driver_data;
        int result;
 
        dbg("%s - port %d", __func__, port->number);
@@ -950,7 +950,7 @@ static void klsi_105_unthrottle (struct usb_serial_port *port)
 
 
 
-static int __init klsi_105_init (void)
+static int __init klsi_105_init(void)
 {
        int retval;
        retval = usb_serial_register(&kl5kusb105d_device);
@@ -969,19 +969,19 @@ failed_usb_serial_register:
 }
 
 
-static void __exit klsi_105_exit (void)
+static void __exit klsi_105_exit(void)
 {
-       usb_deregister (&kl5kusb105d_driver);
-       usb_serial_deregister (&kl5kusb105d_device);
+       usb_deregister(&kl5kusb105d_driver);
+       usb_serial_deregister(&kl5kusb105d_device);
 }
 
 
-module_init (klsi_105_init);
-module_exit (klsi_105_exit);
+module_init(klsi_105_init);
+module_exit(klsi_105_exit);
 
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
-MODULE_LICENSE("GPL"); 
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
 
 
 module_param(debug, bool, S_IRUGO | S_IWUSR);