diff options
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/cp2101.c | 48 |
1 files changed, 11 insertions, 37 deletions
diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index eb7df1835c1..3a83cb4c4bc 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -361,7 +361,6 @@ static void cp2101_get_termios (struct usb_serial_port *port) dbg("%s - no tty structures", __FUNCTION__); return; } - cflag = port->tty->termios->c_cflag; cp2101_get_config(port, CP2101_BAUDRATE, &baud, 2); /* Convert to baudrate */ @@ -369,40 +368,9 @@ static void cp2101_get_termios (struct usb_serial_port *port) baud = BAUD_RATE_GEN_FREQ / baud; dbg("%s - baud rate = %d", __FUNCTION__, baud); - cflag &= ~CBAUD; - switch (baud) { - /* - * The baud rates which are commented out below - * appear to be supported by the device - * but are non-standard - */ - case 600: cflag |= B600; break; - case 1200: cflag |= B1200; break; - case 1800: cflag |= B1800; break; - case 2400: cflag |= B2400; break; - case 4800: cflag |= B4800; break; - /*case 7200: cflag |= B7200; break;*/ - case 9600: cflag |= B9600; break; - /*case 14400: cflag |= B14400; break;*/ - case 19200: cflag |= B19200; break; - /*case 28800: cflag |= B28800; break;*/ - case 38400: cflag |= B38400; break; - /*case 55854: cflag |= B55054; break;*/ - case 57600: cflag |= B57600; break; - case 115200: cflag |= B115200; break; - /*case 127117: cflag |= B127117; break;*/ - case 230400: cflag |= B230400; break; - case 460800: cflag |= B460800; break; - case 921600: cflag |= B921600; break; - /*case 3686400: cflag |= B3686400; break;*/ - default: - dbg("%s - Baud rate is not supported, " - "using 9600 baud", __FUNCTION__); - cflag |= B9600; - cp2101_set_config_single(port, CP2101_BAUDRATE, - (BAUD_RATE_GEN_FREQ/9600)); - break; - } + + tty_encode_baud_rate(port->tty, baud, baud); + cflag = port->tty->termios->c_cflag; cp2101_get_config(port, CP2101_BITS, &bits, 2); cflag &= ~CSIZE; @@ -516,7 +484,7 @@ static void cp2101_get_termios (struct usb_serial_port *port) static void cp2101_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) { - unsigned int cflag, old_cflag=0; + unsigned int cflag, old_cflag; int baud=0, bits; unsigned int modem_ctl[4]; @@ -526,6 +494,8 @@ static void cp2101_set_termios (struct usb_serial_port *port, dbg("%s - no tty structures", __FUNCTION__); return; } + port->tty->termios->c_cflag &= ~CMSPAR; + cflag = port->tty->termios->c_cflag; old_cflag = old_termios->c_cflag; baud = tty_get_baud_rate(port->tty); @@ -563,11 +533,15 @@ static void cp2101_set_termios (struct usb_serial_port *port, dbg("%s - Setting baud rate to %d baud", __FUNCTION__, baud); if (cp2101_set_config_single(port, CP2101_BAUDRATE, - (BAUD_RATE_GEN_FREQ / baud))) + (BAUD_RATE_GEN_FREQ / baud))) { dev_err(&port->dev, "Baud rate requested not " "supported by device\n"); + baud = tty_termios_baud_rate(old_termios); + } } } + /* Report back the resulting baud rate */ + tty_encode_baud_rate(port->tty, baud, baud); /* If the number of data bits is to be updated */ if ((cflag & CSIZE) != (old_cflag & CSIZE)) { |