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staging: comedi: serial2002: cleanup tty_setspeed()

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Rename the two local variables used to set the serial port speed
and latency so thy are unique.

Remove the unnecessary '{ }' around the code and the extra indents.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-04-05 16:08:32 -07:00 committed by Greg Kroah-Hartman
parent 0a245982e6
commit 071e0866d2
1 changed files with 40 additions and 54 deletions
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94
drivers/staging/comedi/drivers/serial2002.c
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@ -185,67 +185,53 @@ static int tty_read(struct file *f, int timeout)
static void tty_setspeed(struct file *f, int speed)
{
struct termios termios;
struct serial_struct serial;
mm_segment_t oldfs;
oldfs = get_fs();
set_fs(KERNEL_DS);
{
/* Set speed */
struct termios settings;
tty_ioctl(f, TCGETS, (unsigned long)&settings);
/* printk("Speed: %d\n", settings.c_cflag & (CBAUD | CBAUDEX)); */
settings.c_iflag = 0;
settings.c_oflag = 0;
settings.c_lflag = 0;
settings.c_cflag = CLOCAL | CS8 | CREAD;
settings.c_cc[VMIN] = 0;
settings.c_cc[VTIME] = 0;
switch (speed) {
case 2400:{
settings.c_cflag |= B2400;
}
break;
case 4800:{
settings.c_cflag |= B4800;
}
break;
case 9600:{
settings.c_cflag |= B9600;
}
break;
case 19200:{
settings.c_cflag |= B19200;
}
break;
case 38400:{
settings.c_cflag |= B38400;
}
break;
case 57600:{
settings.c_cflag |= B57600;
}
break;
case 115200:{
settings.c_cflag |= B115200;
}
break;
default:{
settings.c_cflag |= B9600;
}
break;
}
tty_ioctl(f, TCSETS, (unsigned long)&settings);
/* printk("Speed: %d\n", settings.c_cflag & (CBAUD | CBAUDEX)); */
/* Set speed */
tty_ioctl(f, TCGETS, (unsigned long)&termios);
termios.c_iflag = 0;
termios.c_oflag = 0;
termios.c_lflag = 0;
termios.c_cflag = CLOCAL | CS8 | CREAD;
termios.c_cc[VMIN] = 0;
termios.c_cc[VTIME] = 0;
switch (speed) {
case 2400:
termios.c_cflag |= B2400;
break;
case 4800:
termios.c_cflag |= B4800;
break;
case 9600:
termios.c_cflag |= B9600;
break;
case 19200:
termios.c_cflag |= B19200;
break;
case 38400:
termios.c_cflag |= B38400;
break;
case 57600:
termios.c_cflag |= B57600;
break;
case 115200:
termios.c_cflag |= B115200;
break;
default:
termios.c_cflag |= B9600;
break;
}
{
/* Set low latency */
struct serial_struct settings;
tty_ioctl(f, TCSETS, (unsigned long)&termios);
tty_ioctl(f, TIOCGSERIAL, (unsigned long)&settings);
settings.flags |= ASYNC_LOW_LATENCY;
tty_ioctl(f, TIOCSSERIAL, (unsigned long)&settings);
}
/* Set low latency */
tty_ioctl(f, TIOCGSERIAL, (unsigned long)&serial);
serial.flags |= ASYNC_LOW_LATENCY;
tty_ioctl(f, TIOCSSERIAL, (unsigned long)&serial);
set_fs(oldfs);
}