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-rw-r--r--drivers/usb/serial/belkin_sa.c69
1 files changed, 27 insertions, 42 deletions
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 50194eeed02e..e67ce25f7512 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -349,6 +349,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
unsigned long flags;
unsigned long control_state;
int bad_flow_control;
+ speed_t baud;
if ((!port->tty) || (!port->tty->termios)) {
dbg ("%s - no tty or termios structure", __FUNCTION__);
@@ -364,16 +365,8 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
bad_flow_control = priv->bad_flow_control;
spin_unlock_irqrestore(&priv->lock, flags);
- /* check that they really want us to change something */
- if (old_termios) {
- if ((cflag == old_termios->c_cflag) &&
- (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
- dbg("%s - nothing to change...", __FUNCTION__);
- return;
- }
- old_iflag = old_termios->c_iflag;
- old_cflag = old_termios->c_cflag;
- }
+ old_iflag = old_termios->c_iflag;
+ old_cflag = old_termios->c_cflag;
/* Set the baud rate */
if( (cflag&CBAUD) != (old_cflag&CBAUD) ) {
@@ -387,38 +380,30 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 1) < 0)
err("Set RTS error");
}
+ }
- switch(cflag & CBAUD) {
- case B0: /* handled below */ break;
- case B300: urb_value = BELKIN_SA_BAUD(300); break;
- case B600: urb_value = BELKIN_SA_BAUD(600); break;
- case B1200: urb_value = BELKIN_SA_BAUD(1200); break;
- case B2400: urb_value = BELKIN_SA_BAUD(2400); break;
- case B4800: urb_value = BELKIN_SA_BAUD(4800); break;
- case B9600: urb_value = BELKIN_SA_BAUD(9600); break;
- case B19200: urb_value = BELKIN_SA_BAUD(19200); break;
- case B38400: urb_value = BELKIN_SA_BAUD(38400); break;
- case B57600: urb_value = BELKIN_SA_BAUD(57600); break;
- case B115200: urb_value = BELKIN_SA_BAUD(115200); break;
- case B230400: urb_value = BELKIN_SA_BAUD(230400); break;
- default: err("BELKIN USB Serial Adapter: unsupported baudrate request, using default of 9600");
- urb_value = BELKIN_SA_BAUD(9600); break;
- }
- if ((cflag & CBAUD) != B0 ) {
- if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0)
- err("Set baudrate error");
- } else {
- /* Disable flow control */
- if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0)
- err("Disable flowcontrol error");
-
- /* Drop RTS and DTR */
- control_state &= ~(TIOCM_DTR | TIOCM_RTS);
- if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0)
- err("DTR LOW error");
- if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0)
- err("RTS LOW error");
- }
+ baud = tty_get_baud_rate(port->tty);
+ urb_value = BELKIN_SA_BAUD(baud);
+ /* Clip to maximum speed */
+ if (urb_value == 0)
+ urb_value = 1;
+ /* Turn it back into a resulting real baud rate */
+ baud = BELKIN_SA_BAUD(urb_value);
+ /* FIXME: Once the tty updates are done then push this back to the tty */
+
+ if ((cflag & CBAUD) != B0 ) {
+ if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0)
+ err("Set baudrate error");
+ } else {
+ /* Disable flow control */
+ if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0)
+ err("Disable flowcontrol error");
+ /* Drop RTS and DTR */
+ control_state &= ~(TIOCM_DTR | TIOCM_RTS);
+ if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0)
+ err("DTR LOW error");
+ if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0)
+ err("RTS LOW error");
}
/* set the parity */
@@ -438,7 +423,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios
case CS6: urb_value = BELKIN_SA_DATA_BITS(6); break;
case CS7: urb_value = BELKIN_SA_DATA_BITS(7); break;
case CS8: urb_value = BELKIN_SA_DATA_BITS(8); break;
- default: err("CSIZE was not CS5-CS8, using default of 8");
+ default: dbg("CSIZE was not CS5-CS8, using default of 8");
urb_value = BELKIN_SA_DATA_BITS(8);
break;
}
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