tty-usb-pl2303: Coding style
authorAlan Cox <alan@redhat.com>
Tue, 22 Jul 2008 10:14:49 +0000 (11:14 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Jul 2008 20:03:26 +0000 (13:03 -0700)
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>
drivers/usb/serial/pl2303.c

index a001672..2c9c446 100644 (file)
@@ -10,7 +10,8 @@
  *     modify it under the terms of the GNU General Public License version
  *     2 as published by the Free Software Foundation.
  *
- * 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
  *
  */
 
@@ -25,7 +26,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/spinlock.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 #include "pl2303.h"
@@ -116,7 +117,7 @@ static struct usb_driver pl2303_driver = {
 #define CONTROL_RTS                    0x02
 
 #define BREAK_REQUEST_TYPE             0x21
-#define BREAK_REQUEST                  0x23    
+#define BREAK_REQUEST                  0x23
 #define BREAK_ON                       0xffff
 #define BREAK_OFF                      0x0000
 
@@ -222,7 +223,7 @@ static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb)
        if (pb == NULL)
                return 0;
 
-       return ((pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size);
+       return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
 }
 
 /*
@@ -236,7 +237,7 @@ static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb)
        if (pb == NULL)
                return 0;
 
-       return ((pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size);
+       return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
 }
 
 /*
@@ -395,7 +396,7 @@ static int pl2303_startup(struct usb_serial *serial)
 
 cleanup:
        kfree(buf);
-       for (--i; i>=0; --i) {
+       for (--i; i >= 0; --i) {
                priv = usb_get_serial_port_data(serial->port[i]);
                pl2303_buf_free(priv->buf);
                kfree(priv);
@@ -407,7 +408,7 @@ cleanup:
 static int set_control_lines(struct usb_device *dev, u8 value)
 {
        int retval;
-       
+
        retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
                                 SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE,
                                 value, 0, NULL, 0, 100);
@@ -452,7 +453,7 @@ static void pl2303_send(struct usb_serial_port *port)
                dev_err(&port->dev, "%s - failed submitting write urb,"
                        " error %d\n", __func__, result);
                priv->write_urb_in_use = 0;
-               // TODO: reschedule pl2303_send
+               /* TODO: reschedule pl2303_send */
        }
 
        usb_serial_port_softint(port);
@@ -561,11 +562,19 @@ static void pl2303_set_termios(struct tty_struct *tty,
 
        if (cflag & CSIZE) {
                switch (cflag & CSIZE) {
-                       case CS5:       buf[6] = 5;     break;
-                       case CS6:       buf[6] = 6;     break;
-                       case CS7:       buf[6] = 7;     break;
-                       default:
-                       case CS8:       buf[6] = 8;     break;
+               case CS5:
+                       buf[6] = 5;
+                       break;
+               case CS6:
+                       buf[6] = 6;
+                       break;
+               case CS7:
+                       buf[6] = 7;
+                       break;
+               default:
+               case CS8:
+                       buf[6] = 8;
+                       break;
                }
                dbg("%s - data bits = %d", __func__, buf[6]);
        }
@@ -694,7 +703,7 @@ static void pl2303_close(struct tty_struct *tty,
        /* that is not unnecessarily long) */
        bps = tty_get_baud_rate(tty);
        if (bps > 1200)
-               timeout = max((HZ*2560)/bps,HZ/10);
+               timeout = max((HZ*2560)/bps, HZ/10);
        else
                timeout = 2*HZ;
        schedule_timeout_interruptible(timeout);
@@ -740,7 +749,7 @@ static int pl2303_open(struct tty_struct *tty,
        if (tty)
                pl2303_set_termios(tty, port, &tmp_termios);
 
-       //FIXME: need to assert RTS and DTR if CRTSCTS off
+       /* FIXME: need to assert RTS and DTR if CRTSCTS off */
 
        dbg("%s - submitting read urb", __func__);
        port->read_urb->dev = serial->dev;
@@ -843,12 +852,12 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
                status = priv->line_status;
                spin_unlock_irqrestore(&priv->lock, flags);
 
-               changed=prevstatus^status;
+               changed = prevstatus ^ status;
 
                if (((arg & TIOCM_RNG) && (changed & UART_RING)) ||
                    ((arg & TIOCM_DSR) && (changed & UART_DSR)) ||
                    ((arg & TIOCM_CD)  && (changed & UART_DCD)) ||
-                   ((arg & TIOCM_CTS) && (changed & UART_CTS)) ) {
+                   ((arg & TIOCM_CTS) && (changed & UART_CTS))) {
                        return 0;
                }
                prevstatus = status;
@@ -864,15 +873,13 @@ static int pl2303_ioctl(struct tty_struct *tty, struct file *file,
        dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
 
        switch (cmd) {
-               case TIOCMIWAIT:
-                       dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
-                       return wait_modem_info(port, arg);
-
-               default:
-                       dbg("%s not supported = 0x%04x", __func__, cmd);
-                       break;
+       case TIOCMIWAIT:
+               dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+               return wait_modem_info(port, arg);
+       default:
+               dbg("%s not supported = 0x%04x", __func__, cmd);
+               break;
        }
-
        return -ENOIOCTLCMD;
 }
 
@@ -889,7 +896,8 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state)
                state = BREAK_OFF;
        else
                state = BREAK_ON;
-       dbg("%s - turning break %s", __func__, state==BREAK_OFF ? "off" : "on");
+       dbg("%s - turning break %s", __func__,
+                       state == BREAK_OFF ? "off" : "on");
 
        result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
                                 BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
@@ -943,7 +951,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
        if (actual_length < length)
                return;
 
-        /* Save off the uart status for others to look at */
+       /* Save off the uart status for others to look at */
        spin_lock_irqsave(&priv->lock, flags);
        priv->line_status = data[status_idx];
        spin_unlock_irqrestore(&priv->lock, flags);
@@ -1042,7 +1050,7 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 
        /* break takes precedence over parity, */
        /* which takes precedence over framing errors */
-       if (line_status & UART_BREAK_ERROR )
+       if (line_status & UART_BREAK_ERROR)
                tty_flag = TTY_BREAK;
        else if (line_status & UART_PARITY_ERROR)
                tty_flag = TTY_PARITY;