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Commit 9ab0f202 authored by Alan Cox's avatar Alan Cox Committed by Greg Kroah-Hartman
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USB: cp2101: convert to new termios 



- Convert to new baud rate functions
- Add baud rate reporting

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 01d1df29

drivers/usb/serial/cp2101.c

+11 −37
Original line number Diff line number Diff line
@@ -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)) {