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Date: Fri, 20 Jun 2008 21:01:50 +0100
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: linux-kernel@...r.kernel.org
Subject: [PATCH 28/70] tty-usb-console: tidy the USB console code
From: Alan Cox <alan@...hat.com>
Code tidy
Signed-off-by: Alan Cox <alan@...hat.com>
---
drivers/usb/serial/console.c | 127 ++++++++++++++++++++++--------------------
1 files changed, 66 insertions(+), 61 deletions(-)
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 940f5de..9a4cd0a 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -6,7 +6,7 @@
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
- *
+ *
* Thanks to Randy Dunlap for the original version of this code.
*
*/
@@ -67,7 +67,7 @@ static int usb_console_setup(struct console *co, char *options)
struct tty_struct *tty = NULL;
struct ktermios *termios = NULL, dummy;
- dbg ("%s", __func__);
+ dbg("%s", __func__);
if (options) {
baud = simple_strtoul(options, NULL, 10);
@@ -84,52 +84,52 @@ static int usb_console_setup(struct console *co, char *options)
/* build a cflag setting */
switch (baud) {
- case 1200:
- cflag |= B1200;
- break;
- case 2400:
- cflag |= B2400;
- break;
- case 4800:
- cflag |= B4800;
- break;
- case 19200:
- cflag |= B19200;
- break;
- case 38400:
- cflag |= B38400;
- break;
- case 57600:
- cflag |= B57600;
- break;
- case 115200:
- cflag |= B115200;
- break;
- case 9600:
- default:
- cflag |= B9600;
- /*
- * Set this to a sane value to prevent a divide error
- */
- baud = 9600;
- break;
+ case 1200:
+ cflag |= B1200;
+ break;
+ case 2400:
+ cflag |= B2400;
+ break;
+ case 4800:
+ cflag |= B4800;
+ break;
+ case 19200:
+ cflag |= B19200;
+ break;
+ case 38400:
+ cflag |= B38400;
+ break;
+ case 57600:
+ cflag |= B57600;
+ break;
+ case 115200:
+ cflag |= B115200;
+ break;
+ case 9600:
+ default:
+ cflag |= B9600;
+ /*
+ * Set this to a sane value to prevent a divide error
+ */
+ baud = 9600;
+ break;
}
switch (bits) {
- case 7:
- cflag |= CS7;
- break;
- default:
- case 8:
- cflag |= CS8;
- break;
+ case 7:
+ cflag |= CS7;
+ break;
+ default:
+ case 8:
+ cflag |= CS8;
+ break;
}
switch (parity) {
- case 'o': case 'O':
- cflag |= PARODD;
- break;
- case 'e': case 'E':
- cflag |= PARENB;
- break;
+ case 'o': case 'O':
+ cflag |= PARODD;
+ break;
+ case 'e': case 'E':
+ cflag |= PARENB;
+ break;
}
co->cflag = cflag;
@@ -140,7 +140,7 @@ static int usb_console_setup(struct console *co, char *options)
serial = usb_serial_get_by_index(co->index);
if (serial == NULL) {
/* no device is connected yet, sorry :( */
- err ("No USB device connected to ttyUSB%i", co->index);
+ err("No USB device connected to ttyUSB%i", co->index);
return -ENODEV;
}
@@ -148,7 +148,7 @@ static int usb_console_setup(struct console *co, char *options)
port->port.tty = NULL;
info->port = port;
-
+
++port->port.count;
if (port->port.count == 1) {
if (serial->type->set_termios) {
@@ -174,7 +174,7 @@ static int usb_console_setup(struct console *co, char *options)
port->port.tty = tty;
}
- /* only call the device specific open if this
+ /* only call the device specific open if this
* is the first time the port is opened */
if (serial->type->open)
retval = serial->type->open(NULL, port, NULL);
@@ -211,7 +211,8 @@ reset_open_count:
goto out;
}
-static void usb_console_write(struct console *co, const char *buf, unsigned count)
+static void usb_console_write(struct console *co,
+ const char *buf, unsigned count)
{
static struct usbcons_info *info = &usbcons_info;
struct usb_serial_port *port = info->port;
@@ -228,7 +229,7 @@ static void usb_console_write(struct console *co, const char *buf, unsigned coun
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
if (!port->port.count) {
- dbg ("%s - port not opened", __func__);
+ dbg("%s - port not opened", __func__);
return;
}
@@ -236,14 +237,15 @@ static void usb_console_write(struct console *co, const char *buf, unsigned coun
unsigned int i;
unsigned int lf;
/* search for LF so we can insert CR if necessary */
- for (i=0, lf=0 ; i < count ; i++) {
+ for (i = 0, lf = 0 ; i < count ; i++) {
if (*(buf + i) == 10) {
lf = 1;
i++;
break;
}
}
- /* pass on to the driver specific version of this function if it is available */
+ /* pass on to the driver specific version of this function if
+ it is available */
if (serial->type->write)
retval = serial->type->write(NULL, port, buf, i);
else
@@ -253,9 +255,11 @@ static void usb_console_write(struct console *co, const char *buf, unsigned coun
/* append CR after LF */
unsigned char cr = 13;
if (serial->type->write)
- retval = serial->type->write(NULL, port, &cr, 1);
+ retval = serial->type->write(NULL,
+ port, &cr, 1);
else
- retval = usb_serial_generic_write(NULL, port, &cr, 1);
+ retval = usb_serial_generic_write(NULL,
+ port, &cr, 1);
dbg("%s - return value : %d", __func__, retval);
}
buf += i;
@@ -273,18 +277,19 @@ static struct console usbcons = {
void usb_serial_console_disconnect(struct usb_serial *serial)
{
- if (serial && serial->port && serial->port[0] && serial->port[0] == usbcons_info.port) {
+ if (serial && serial->port && serial->port[0]
+ && serial->port[0] == usbcons_info.port) {
usb_serial_console_exit();
usb_serial_put(serial);
}
}
-void usb_serial_console_init (int serial_debug, int minor)
+void usb_serial_console_init(int serial_debug, int minor)
{
debug = serial_debug;
if (minor == 0) {
- /*
+ /*
* Call register_console() if this is the first device plugged
* in. If we call it earlier, then the callback to
* console_setup() will fail, as there is not a device seen by
@@ -293,16 +298,16 @@ void usb_serial_console_init (int serial_debug, int minor)
/*
* Register console.
* NOTES:
- * console_setup() is called (back) immediately (from register_console).
- * console_write() is called immediately from register_console iff
- * CON_PRINTBUFFER is set in flags.
+ * console_setup() is called (back) immediately (from
+ * register_console). console_write() is called immediately
+ * from register_console iff CON_PRINTBUFFER is set in flags.
*/
- dbg ("registering the USB serial console.");
+ dbg("registering the USB serial console.");
register_console(&usbcons);
}
}
-void usb_serial_console_exit (void)
+void usb_serial_console_exit(void)
{
if (usbcons_info.port) {
unregister_console(&usbcons);
--
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