summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/usb/serial/pl2303.c64
1 files changed, 36 insertions, 28 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index a0016725d314..2c9c446ad625 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -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;