diff options
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/mct_u232.c | 26 | ||||
| -rw-r--r-- | drivers/usb/serial/mct_u232.h | 2 |
2 files changed, 18 insertions, 10 deletions
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 0dc99f75bb0..88b2074867c 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -182,10 +182,11 @@ struct mct_u232_private { /* * Later day 2.6.0-test kernels have new baud rates like B230400 which * we do not know how to support. We ignore them for the moment. - * XXX Rate-limit the error message, it's user triggerable. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value) +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value, speed_t *result) { + *result = value; + if (le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_SITECOM_PID || le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_BELKIN_F5U109_PID) { switch (value) { @@ -200,11 +201,13 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value case 57600: return 0x0b; case 115200: return 0x0c; default: - err("MCT USB-RS232: unsupported baudrate request 0x%x," - " using default of B9600", value); + *result = 9600; return 0x08; } } else { + /* FIXME: Can we use any divider - should we do + divider = 115200/value; + real baud = 115200/divider */ switch (value) { case 300: break; case 600: break; @@ -217,9 +220,8 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value case 57600: break; case 115200: break; default: - err("MCT USB-RS232: unsupported baudrate request 0x%x," - " using default of B9600", value); value = 9600; + *result = 9600; } return 115200/value; } @@ -232,16 +234,19 @@ static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_p int rc; unsigned char zero_byte = 0; unsigned char cts_enable_byte = 0; + speed_t speed; - divisor = cpu_to_le32(mct_u232_calculate_baud_rate(serial, value)); + divisor = cpu_to_le32(mct_u232_calculate_baud_rate(serial, value, &speed)); rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), MCT_U232_SET_BAUD_RATE_REQUEST, MCT_U232_SET_REQUEST_TYPE, 0, 0, &divisor, MCT_U232_SET_BAUD_RATE_SIZE, WDR_TIMEOUT); - if (rc < 0) + if (rc < 0) /*FIXME: What value speed results */ err("Set BAUD RATE %d failed (error = %d)", value, rc); + else + tty_encode_baud_rate(port->tty, speed, speed); dbg("set_baud_rate: value: 0x%x, divisor: 0x%x", value, divisor); /* Mimic the MCT-supplied Windows driver (version 1.21P.0104), which @@ -608,7 +613,8 @@ static void mct_u232_set_termios (struct usb_serial_port *port, { struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); - unsigned int cflag = port->tty->termios->c_cflag; + struct ktermios *termios = port->tty->termios; + unsigned int cflag = termios->c_cflag; unsigned int old_cflag = old_termios->c_cflag; unsigned long flags; unsigned int control_state; @@ -670,6 +676,8 @@ static void mct_u232_set_termios (struct usb_serial_port *port, break; } + termios->c_cflag &= ~CMSPAR; + /* set the number of stop bits */ last_lcr |= (cflag & CSTOPB) ? MCT_U232_STOP_BITS_2 : MCT_U232_STOP_BITS_1; diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h index aae10c8174d..07b6bec31dc 100644 --- a/drivers/usb/serial/mct_u232.h +++ b/drivers/usb/serial/mct_u232.h @@ -79,7 +79,7 @@ * and "Intel solution". They are the regular MCT and "Sitecom" for us. * This is pointless to document in the header, see the code for the bits. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value); +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value, speed_t *result); /* * Line Control Register (LCR) |