+ u8 baud, data_bits, stop_bits, parity, x_on, x_off;
+ u16 changes = 0;
+
+ struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+ BT_DBG("tty %p termios %p", tty, old);
+
+ /* Handle turning off CRTSCTS */
+ if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS))
+ BT_DBG("Turning off CRTSCTS unsupported");
+
+ /* Parity on/off and when on, odd/even */
+ if (((old->c_cflag & PARENB) != (new->c_cflag & PARENB)) ||
+ ((old->c_cflag & PARODD) != (new->c_cflag & PARODD)) ) {
+ changes |= RFCOMM_RPN_PM_PARITY;
+ BT_DBG("Parity change detected.");
+ }
+
+ /* Mark and space parity are not supported! */
+ if (new->c_cflag & PARENB) {
+ if (new->c_cflag & PARODD) {
+ BT_DBG("Parity is ODD");
+ parity = RFCOMM_RPN_PARITY_ODD;
+ } else {
+ BT_DBG("Parity is EVEN");
+ parity = RFCOMM_RPN_PARITY_EVEN;
+ }
+ } else {
+ BT_DBG("Parity is OFF");
+ parity = RFCOMM_RPN_PARITY_NONE;
+ }
+
+ /* Setting the x_on / x_off characters */
+ if (old->c_cc[VSTOP] != new->c_cc[VSTOP]) {
+ BT_DBG("XOFF custom");
+ x_on = new->c_cc[VSTOP];
+ changes |= RFCOMM_RPN_PM_XON;
+ } else {
+ BT_DBG("XOFF default");
+ x_on = RFCOMM_RPN_XON_CHAR;
+ }
+
+ if (old->c_cc[VSTART] != new->c_cc[VSTART]) {
+ BT_DBG("XON custom");
+ x_off = new->c_cc[VSTART];
+ changes |= RFCOMM_RPN_PM_XOFF;
+ } else {
+ BT_DBG("XON default");
+ x_off = RFCOMM_RPN_XOFF_CHAR;
+ }
+
+ /* Handle setting of stop bits */
+ if ((old->c_cflag & CSTOPB) != (new->c_cflag & CSTOPB))
+ changes |= RFCOMM_RPN_PM_STOP;
+
+ /* POSIX does not support 1.5 stop bits and RFCOMM does not
+ * support 2 stop bits. So a request for 2 stop bits gets
+ * translated to 1.5 stop bits */
+ if (new->c_cflag & CSTOPB) {
+ stop_bits = RFCOMM_RPN_STOP_15;
+ } else {
+ stop_bits = RFCOMM_RPN_STOP_1;
+ }
+
+ /* Handle number of data bits [5-8] */
+ if ((old->c_cflag & CSIZE) != (new->c_cflag & CSIZE))
+ changes |= RFCOMM_RPN_PM_DATA;
+
+ switch (new->c_cflag & CSIZE) {
+ case CS5:
+ data_bits = RFCOMM_RPN_DATA_5;
+ break;
+ case CS6:
+ data_bits = RFCOMM_RPN_DATA_6;
+ break;
+ case CS7:
+ data_bits = RFCOMM_RPN_DATA_7;
+ break;
+ case CS8:
+ data_bits = RFCOMM_RPN_DATA_8;
+ break;
+ default:
+ data_bits = RFCOMM_RPN_DATA_8;
+ break;
+ }
+
+ /* Handle baudrate settings */
+ if (old_baud_rate != new_baud_rate)
+ changes |= RFCOMM_RPN_PM_BITRATE;