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belkin_sa: clean up code

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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>
This commit is contained in:
Alan Cox
2008-07-22 11:09:39 +01:00
committed by Linus Torvalds
parent 72e2741256
commit b69c14992e
2 changed files with 94 additions and 69 deletions
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78
drivers/usb/serial/belkin_sa.c
View File

@@ -13,7 +13,8 @@
* 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.
@@ -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"
@@ -89,13 +91,17 @@ static int debug;
/* 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 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_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_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static struct usb_device_id id_table_combined [] = {
@@ -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,
@@ -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;
}
@@ -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;
@@ -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] */
@@ -372,7 +384,8 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
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)
@@ -415,10 +430,18 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
/* set the number of data bits */
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;
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;
@@ -429,15 +452,16 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
/* 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)
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);

5
drivers/usb/serial/belkin_sa.h
View File

@@ -13,7 +13,8 @@
* 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.
@@ -105,7 +106,7 @@
#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 */