belkin_sa: clean up code

Coding style tidy up for belkin_sa

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>

2 files changed, 94 insertions, 69 deletions

diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 1a762692c739..2ebe06c3405a 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -7,13 +7,14 @@
  *  This program is largely derived from work by the linux-usb group
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
- *  
+ *
  *      This program is free software; you can redistribute it and/or modify
  *      it under the terms of the GNU General Public License as published by
  *      the Free Software Foundation; either version 2 of the License, or
  *      (at your option) any later version.
  *
- * See Documentation/usb/usb-serial.txt for more information on using this driver
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver
  *
  * TODO:
  * -- Add true modem contol line query capability.  Currently we track the
@@ -28,7 +29,8 @@
  *      compressed all the differnent device entries into 1.
  *
  * 30-May-2001 gkh
- *      switched from using spinlock to a semaphore, which fixes lots of problems.
+ *      switched from using spinlock to a semaphore, which fixes lots of
+ *      problems.
  *
  * 08-Apr-2001 gb
  *      - Identify version on module load.
@@ -41,7 +43,7 @@
  *      - Added support for the old Belkin and Peracom devices.
  *      - Made the port able to be opened multiple times.
  *      - Added some defaults incase the line settings are things these devices
- *        can't support. 
+ *        can't support.
  *
  * 18-Oct-2000 William Greathouse
  *    Released into the wild (linux-usb-devel)
@@ -72,7 +74,7 @@
 #include <linux/tty_flip.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 #include "belkin_sa.h"
@@ -87,15 +89,19 @@ static int debug;
 #define DRIVER_DESC "USB Belkin Serial converter driver"
 
 /* function prototypes for a Belkin USB Serial Adapter F5U103 */
-static int  belkin_sa_startup           (struct usb_serial *serial);
-static void belkin_sa_shutdown          (struct usb_serial *serial);
-static int  belkin_sa_open              (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
-static void belkin_sa_close             (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
-static void belkin_sa_read_int_callback (struct urb *urb);
-static void belkin_sa_set_termios       (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old);
-static void belkin_sa_break_ctl         (struct tty_struct *tty, int break_state );
-static int  belkin_sa_tiocmget          (struct tty_struct *tty, struct file *file);
-static int  belkin_sa_tiocmset          (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
+static int  belkin_sa_startup(struct usb_serial *serial);
+static void belkin_sa_shutdown(struct usb_serial *serial);
+static int  belkin_sa_open(struct tty_struct *tty,
+                        struct usb_serial_port *port, struct file *filp);
+static void belkin_sa_close(struct tty_struct *tty,
+                        struct usb_serial_port *port, struct file *filp);
+static void belkin_sa_read_int_callback(struct urb *urb);
+static void belkin_sa_set_termios(struct tty_struct *tty,
+                        struct usb_serial_port *port, struct ktermios * old);
+static void belkin_sa_break_ctl(struct tty_struct *tty, int break_state);
+static int  belkin_sa_tiocmget(struct tty_struct *tty, struct file *file);
+static int  belkin_sa_tiocmset(struct tty_struct *tty, struct file *file,
+                                        unsigned int set, unsigned int clear);
 
 
 static struct usb_device_id id_table_combined [] = {
@@ -105,10 +111,10 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(GOHUBS_VID, GOHUBS_PID) },
         { USB_DEVICE(GOHUBS_VID, HANDYLINK_PID) },
         { USB_DEVICE(BELKIN_DOCKSTATION_VID, BELKIN_DOCKSTATION_PID) },
-        { }                                                     /* Terminating entry */
+        { }     /* Terminating entry */
 };
 
-MODULE_DEVICE_TABLE (usb, id_table_combined);
+MODULE_DEVICE_TABLE(usb, id_table_combined);
 
 static struct usb_driver belkin_driver = {
         .name =         "belkin",
@@ -130,7 +136,8 @@ static struct usb_serial_driver belkin_device = {
         .num_ports =            1,
         .open =                 belkin_sa_open,
         .close =                belkin_sa_close,
-        .read_int_callback =    belkin_sa_read_int_callback,    /* How we get the status info */
+        .read_int_callback =    belkin_sa_read_int_callback,
+                                        /* How we get the status info */
         .set_termios =          belkin_sa_set_termios,
         .break_ctl =            belkin_sa_break_ctl,
         .tiocmget =             belkin_sa_tiocmget,
@@ -158,12 +165,12 @@ struct belkin_sa_private {
 #define WDR_TIMEOUT 5000 /* default urb timeout */
 
 /* assumes that struct usb_serial *serial is available */
-#define BSA_USB_CMD(c,v) usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), \
+#define BSA_USB_CMD(c, v) usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), \
                                             (c), BELKIN_SA_SET_REQUEST_TYPE, \
                                             (v), 0, NULL, 0, WDR_TIMEOUT)
 
 /* do some startup allocations not currently performed by usb_serial_probe() */
-static int belkin_sa_startup (struct usb_serial *serial)
+static int belkin_sa_startup(struct usb_serial *serial)
 {
         struct usb_device *dev = serial->dev;
         struct belkin_sa_private *priv;
@@ -171,20 +178,23 @@ static int belkin_sa_startup (struct usb_serial *serial)
         /* allocate the private data structure */
         priv = kmalloc(sizeof(struct belkin_sa_private), GFP_KERNEL);
         if (!priv)
-                return (-1); /* error */
+                return -1; /* error */
         /* set initial values for control structures */
         spin_lock_init(&priv->lock);
         priv->control_state = 0;
         priv->last_lsr = 0;
         priv->last_msr = 0;
         /* see comments at top of file */
-        priv->bad_flow_control = (le16_to_cpu(dev->descriptor.bcdDevice) <= 0x0206) ? 1 : 0;
-        info("bcdDevice: %04x, bfc: %d", le16_to_cpu(dev->descriptor.bcdDevice), priv->bad_flow_control);
+        priv->bad_flow_control =
+                (le16_to_cpu(dev->descriptor.bcdDevice) <= 0x0206) ? 1 : 0;
+        info("bcdDevice: %04x, bfc: %d",
+                                        le16_to_cpu(dev->descriptor.bcdDevice),
+                                        priv->bad_flow_control);
 
         init_waitqueue_head(&serial->port[0]->write_wait);
         usb_set_serial_port_data(serial->port[0], priv);
-        
-        return (0);
+
+        return 0;
 }
 
 
@@ -192,11 +202,11 @@ static void belkin_sa_shutdown(struct usb_serial *serial)
 {
         struct belkin_sa_private *priv;
         int i;
-        
-        dbg ("%s", __func__);
+
+        dbg("%s", __func__);
 
         /* stop reads and writes on all ports */
-        for (i=0; i < serial->num_ports; ++i) {
+        for (i = 0; i < serial->num_ports; ++i) {
                 /* My special items, the standard routines free my urbs */
                 priv = usb_get_serial_port_data(serial->port[i]);
                 kfree(priv);
@@ -204,7 +214,8 @@ static void belkin_sa_shutdown(struct usb_serial *serial)
 }
 
 
-static int  belkin_sa_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp)
+static int  belkin_sa_open(struct tty_struct *tty,
+                        struct usb_serial_port *port, struct file *filp)
 {
         int retval = 0;
 
@@ -233,7 +244,7 @@ exit:
 } /* belkin_sa_open */
 
 
-static void belkin_sa_close (struct tty_struct *tty,
+static void belkin_sa_close(struct tty_struct *tty,
                         struct usb_serial_port *port, struct file *filp)
 {
         dbg("%s port %d", __func__, port->number);
@@ -271,7 +282,8 @@ static void belkin_sa_read_int_callback(struct urb *urb)
                 goto exit;
         }
 
-        usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
+        usb_serial_debug_data(debug, &port->dev, __func__,
+                                        urb->actual_length, data);
 
         /* Handle known interrupt data */
         /* ignore data[0] and data[1] */
@@ -279,7 +291,7 @@ static void belkin_sa_read_int_callback(struct urb *urb)
         priv = usb_get_serial_port_data(port);
         spin_lock_irqsave(&priv->lock, flags);
         priv->last_msr = data[BELKIN_SA_MSR_INDEX];
-        
+
         /* Record Control Line states */
         if (priv->last_msr & BELKIN_SA_MSR_DSR)
                 priv->control_state |= TIOCM_DSR;
@@ -327,9 +339,9 @@ static void belkin_sa_read_int_callback(struct urb *urb)
 #endif
         spin_unlock_irqrestore(&priv->lock, flags);
 exit:
-        retval = usb_submit_urb (urb, GFP_ATOMIC);
+        retval = usb_submit_urb(urb, GFP_ATOMIC);
         if (retval)
-                err ("%s - usb_submit_urb failed with result %d",
+                err("%s - usb_submit_urb failed with result %d",
                      __func__, retval);
 }
 
@@ -348,7 +360,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
         int bad_flow_control;
         speed_t baud;
         struct ktermios *termios = tty->termios;
-        
+
         iflag = termios->c_iflag;
         cflag = termios->c_cflag;
 
@@ -359,20 +371,21 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
         control_state = priv->control_state;
         bad_flow_control = priv->bad_flow_control;
         spin_unlock_irqrestore(&priv->lock, flags);
-        
+
         old_iflag = old_termios->c_iflag;
         old_cflag = old_termios->c_cflag;
 
         /* Set the baud rate */
         if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
                 /* reassert DTR and (maybe) RTS on transition from B0 */
-                if( (old_cflag&CBAUD) == B0 ) {
+                if ((old_cflag & CBAUD) == B0) {
                         control_state |= (TIOCM_DTR|TIOCM_RTS);
                         if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 1) < 0)
                                 err("Set DTR error");
                         /* don't set RTS if using hardware flow control */
                         if (!(old_cflag & CRTSCTS))
-                                if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 1) < 0)
+                                if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST
+                                                                , 1) < 0)
                                         err("Set RTS error");
                 }
         }
@@ -392,7 +405,8 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
                         err("Set baudrate error");
         } else {
                 /* Disable flow control */
-                if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0)
+                if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST,
+                                                BELKIN_SA_FLOW_NONE) < 0)
                         err("Disable flowcontrol error");
                 /* Drop RTS and DTR */
                 control_state &= ~(TIOCM_DTR | TIOCM_RTS);
@@ -403,9 +417,10 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
         }
 
         /* set the parity */
-        if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) {
+        if ((cflag ^ old_cflag) & (PARENB | PARODD)) {
                 if (cflag & PARENB)
-                        urb_value = (cflag & PARODD) ?  BELKIN_SA_PARITY_ODD : BELKIN_SA_PARITY_EVEN;
+                        urb_value = (cflag & PARODD) ?  BELKIN_SA_PARITY_ODD
+                                                : BELKIN_SA_PARITY_EVEN;
                 else
                         urb_value = BELKIN_SA_PARITY_NONE;
                 if (BSA_USB_CMD(BELKIN_SA_SET_PARITY_REQUEST, urb_value) < 0)
@@ -413,31 +428,40 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
         }
 
         /* set the number of data bits */
-        if( (cflag&CSIZE) != (old_cflag&CSIZE) ) {
+        if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
                 switch (cflag & CSIZE) {
-                        case CS5: urb_value = BELKIN_SA_DATA_BITS(5); break;
-                        case CS6: urb_value = BELKIN_SA_DATA_BITS(6); break;
-                        case CS7: urb_value = BELKIN_SA_DATA_BITS(7); break;
-                        case CS8: urb_value = BELKIN_SA_DATA_BITS(8); break;
-                        default: dbg("CSIZE was not CS5-CS8, using default of 8");
-                                urb_value = BELKIN_SA_DATA_BITS(8);
-                                break;
+                case CS5:
+                        urb_value = BELKIN_SA_DATA_BITS(5);
+                        break;
+                case CS6:
+                        urb_value = BELKIN_SA_DATA_BITS(6);
+                        break;
+                case CS7:
+                        urb_value = BELKIN_SA_DATA_BITS(7);
+                        break;
+                case CS8:
+                        urb_value = BELKIN_SA_DATA_BITS(8);
+                        break;
+                default: dbg("CSIZE was not CS5-CS8, using default of 8");
+                        urb_value = BELKIN_SA_DATA_BITS(8);
+                        break;
                 }
                 if (BSA_USB_CMD(BELKIN_SA_SET_DATA_BITS_REQUEST, urb_value) < 0)
                         err("Set data bits error");
         }
 
         /* set the number of stop bits */
-        if( (cflag&CSTOPB) != (old_cflag&CSTOPB) ) {
-                urb_value = (cflag & CSTOPB) ? BELKIN_SA_STOP_BITS(2) : BELKIN_SA_STOP_BITS(1);
-                if (BSA_USB_CMD(BELKIN_SA_SET_STOP_BITS_REQUEST, urb_value) < 0)
+        if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
+                urb_value = (cflag & CSTOPB) ? BELKIN_SA_STOP_BITS(2)
+                                                : BELKIN_SA_STOP_BITS(1);
+                if (BSA_USB_CMD(BELKIN_SA_SET_STOP_BITS_REQUEST,
+                                                        urb_value) < 0)
                         err("Set stop bits error");
         }
 
         /* Set flow control */
-        if( (iflag&IXOFF)   != (old_iflag&IXOFF)
-        ||      (iflag&IXON)    != (old_iflag&IXON)
-        ||  (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) {
+        if (((iflag ^ old_iflag) & (IXOFF | IXON)) ||
+                ((cflag ^ old_cflag) & CRTSCTS)) {
                 urb_value = 0;
                 if ((iflag & IXOFF) || (iflag & IXON))
                         urb_value |= (BELKIN_SA_FLOW_OXON | BELKIN_SA_FLOW_IXON);
@@ -479,7 +503,7 @@ static int belkin_sa_tiocmget(struct tty_struct *tty, struct file *file)
         struct belkin_sa_private *priv = usb_get_serial_port_data(port);
         unsigned long control_state;
         unsigned long flags;
-        
+
         dbg("%s", __func__);
 
         spin_lock_irqsave(&priv->lock, flags);
@@ -501,7 +525,7 @@ static int belkin_sa_tiocmset(struct tty_struct *tty, struct file *file,
         int retval;
         int rts = 0;
         int dtr = 0;
-        
+
         dbg("%s", __func__);
 
         spin_lock_irqsave(&priv->lock, flags);
@@ -563,17 +587,17 @@ failed_usb_serial_register:
 
 static void __exit belkin_sa_exit (void)
 {
-        usb_deregister (&belkin_driver);
+        usb_deregister(&belkin_driver);
         usb_serial_deregister(&belkin_device);
 }
 
 
-module_init (belkin_sa_init);
-module_exit (belkin_sa_exit);
+module_init(belkin_sa_init);
+module_exit(belkin_sa_exit);
 
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
-MODULE_VERSION( DRIVER_VERSION );
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
 module_param(debug, bool, S_IRUGO | S_IWUSR);
diff --git a/drivers/usb/serial/belkin_sa.h b/drivers/usb/serial/belkin_sa.h
index 9116b92f4622..c66a6730d38c 100644
--- a/drivers/usb/serial/belkin_sa.h
+++ b/drivers/usb/serial/belkin_sa.h
@@ -7,13 +7,14 @@
  *  This program is largely derived from work by the linux-usb group
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
- *  
+ *
  *      This program is free software; you can redistribute it and/or modify
  *      it under the terms of the GNU General Public License as published by
  *      the Free Software Foundation; either version 2 of the License, or
  *      (at your option) any later version.
  *
- * See Documentation/usb/usb-serial.txt for more information on using this driver
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver
  *
  * 12-Mar-2001 gkh
  *      Added GoHubs GO-COM232 device id.
@@ -27,7 +28,7 @@
  *    adapter, so pardon any stupid mistakes.  All of the information
  *    I am using to write this driver was acquired by using a modified
  *    UsbSnoop on Windows2000.
- *    
+ *
  */
 
 #ifndef __LINUX_USB_SERIAL_BSA_H
@@ -96,20 +97,20 @@
 
 /*
  * It seems that the interrupt pipe is closely modelled after the
- * 16550 register layout.  This is probably because the adapter can 
+ * 16550 register layout.  This is probably because the adapter can
  * be used in a "DOS" environment to simulate a standard hardware port.
  */
-#define BELKIN_SA_LSR_INDEX             2               /* Line Status Register */
+#define BELKIN_SA_LSR_INDEX             2       /*     Line Status Register */
 #define BELKIN_SA_LSR_RDR               0x01    /* receive data ready */
 #define BELKIN_SA_LSR_OE                0x02    /* overrun error */
 #define BELKIN_SA_LSR_PE                0x04    /* parity error */
 #define BELKIN_SA_LSR_FE                0x08    /* framing error */
 #define BELKIN_SA_LSR_BI                0x10    /* break indicator */
-#define BELKIN_SA_LSR_THE               0x20    /* transmit holding register empty */
+#define BELKIN_SA_LSR_THE               0x20    /* tx holding register empty */
 #define BELKIN_SA_LSR_TE                0x40    /* transmit register empty */
 #define BELKIN_SA_LSR_ERR               0x80    /* OE | PE | FE | BI */
 
-#define BELKIN_SA_MSR_INDEX             3               /* Modem Status Register */
+#define BELKIN_SA_MSR_INDEX             3       /*     Modem Status Register */
 #define BELKIN_SA_MSR_DCTS              0x01    /* Delta CTS */
 #define BELKIN_SA_MSR_DDSR              0x02    /* Delta DSR */
 #define BELKIN_SA_MSR_DRI               0x04    /* Delta RI */