/*
- * Silicon Laboratories CP2101/CP2102 USB to RS232 serial adaptor driver
+ * Silicon Laboratories CP210x USB to RS232 serial adaptor driver
  *
  * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk)
  *
  * Version Information
  */
 #define DRIVER_VERSION "v0.09"
-#define DRIVER_DESC "Silicon Labs CP2101/CP2102 RS232 serial adaptor driver"
+#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver"
 
 /*
  * Function Prototypes
  */
-static int cp2101_open(struct tty_struct *, struct usb_serial_port *,
+static int cp210x_open(struct tty_struct *, struct usb_serial_port *,
                                                        struct file *);
-static void cp2101_cleanup(struct usb_serial_port *);
-static void cp2101_close(struct usb_serial_port *);
-static void cp2101_get_termios(struct tty_struct *,
+static void cp210x_cleanup(struct usb_serial_port *);
+static void cp210x_close(struct usb_serial_port *);
+static void cp210x_get_termios(struct tty_struct *,
        struct usb_serial_port *port);
-static void cp2101_get_termios_port(struct usb_serial_port *port,
+static void cp210x_get_termios_port(struct usb_serial_port *port,
        unsigned int *cflagp, unsigned int *baudp);
-static void cp2101_set_termios(struct tty_struct *, struct usb_serial_port *,
+static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
                                                        struct ktermios*);
-static int cp2101_tiocmget(struct tty_struct *, struct file *);
-static int cp2101_tiocmset(struct tty_struct *, struct file *,
+static int cp210x_tiocmget(struct tty_struct *, struct file *);
+static int cp210x_tiocmset(struct tty_struct *, struct file *,
                unsigned int, unsigned int);
-static int cp2101_tiocmset_port(struct usb_serial_port *port, struct file *,
+static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *,
                unsigned int, unsigned int);
-static void cp2101_break_ctl(struct tty_struct *, int);
-static int cp2101_startup(struct usb_serial *);
-static void cp2101_shutdown(struct usb_serial *);
+static void cp210x_break_ctl(struct tty_struct *, int);
+static int cp210x_startup(struct usb_serial *);
+static void cp210x_shutdown(struct usb_serial *);
 
 static int debug;
 
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-static struct usb_driver cp2101_driver = {
-       .name           = "cp2101",
+static struct usb_driver cp210x_driver = {
+       .name           = "cp210x",
        .probe          = usb_serial_probe,
        .disconnect     = usb_serial_disconnect,
        .id_table       = id_table,
        .no_dynamic_id  =       1,
 };
 
-static struct usb_serial_driver cp2101_device = {
+static struct usb_serial_driver cp210x_device = {
        .driver = {
                .owner =        THIS_MODULE,
-               .name =         "cp2101",
+               .name =         "cp210x",
        },
-       .usb_driver             = &cp2101_driver,
+       .usb_driver             = &cp210x_driver,
        .id_table               = id_table,
        .num_ports              = 1,
-       .open                   = cp2101_open,
-       .close                  = cp2101_close,
-       .break_ctl              = cp2101_break_ctl,
-       .set_termios            = cp2101_set_termios,
-       .tiocmget               = cp2101_tiocmget,
-       .tiocmset               = cp2101_tiocmset,
-       .attach                 = cp2101_startup,
-       .shutdown               = cp2101_shutdown,
+       .open                   = cp210x_open,
+       .close                  = cp210x_close,
+       .break_ctl              = cp210x_break_ctl,
+       .set_termios            = cp210x_set_termios,
+       .tiocmget               = cp210x_tiocmget,
+       .tiocmset               = cp210x_tiocmset,
+       .attach                 = cp210x_startup,
+       .shutdown               = cp210x_shutdown,
 };
 
 /* Config request types */
 #define CONTROL_WRITE_RTS      0x0200
 
 /*
- * cp2101_get_config
- * Reads from the CP2101 configuration registers
+ * cp210x_get_config
+ * Reads from the CP210x configuration registers
  * 'size' is specified in bytes.
  * 'data' is a pointer to a pre-allocated array of integers large
  * enough to hold 'size' bytes (with 4 bytes to each integer)
  */
-static int cp2101_get_config(struct usb_serial_port *port, u8 request,
+static int cp210x_get_config(struct usb_serial_port *port, u8 request,
                unsigned int *data, int size)
 {
        struct usb_serial *serial = port->serial;
 }
 
 /*
- * cp2101_set_config
- * Writes to the CP2101 configuration registers
+ * cp210x_set_config
+ * Writes to the CP210x configuration registers
  * Values less than 16 bits wide are sent directly
  * 'size' is specified in bytes.
  */
-static int cp2101_set_config(struct usb_serial_port *port, u8 request,
+static int cp210x_set_config(struct usb_serial_port *port, u8 request,
                unsigned int *data, int size)
 {
        struct usb_serial *serial = port->serial;
 }
 
 /*
- * cp2101_set_config_single
- * Convenience function for calling cp2101_set_config on single data values
+ * cp210x_set_config_single
+ * Convenience function for calling cp210x_set_config on single data values
  * without requiring an integer pointer
  */
-static inline int cp2101_set_config_single(struct usb_serial_port *port,
+static inline int cp210x_set_config_single(struct usb_serial_port *port,
                u8 request, unsigned int data)
 {
-       return cp2101_set_config(port, request, &data, 2);
+       return cp210x_set_config(port, request, &data, 2);
 }
 
 /*
- * cp2101_quantise_baudrate
+ * cp210x_quantise_baudrate
  * Quantises the baud rate as per AN205 Table 1
  */
-static unsigned int cp2101_quantise_baudrate(unsigned int baud) {
+static unsigned int cp210x_quantise_baudrate(unsigned int baud) {
        if      (baud <= 56)       baud = 0;
        else if (baud <= 300)      baud = 300;
        else if (baud <= 600)      baud = 600;
        return baud;
 }
 
-static int cp2101_open(struct tty_struct *tty, struct usb_serial_port *port,
+static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port,
                                struct file *filp)
 {
        struct usb_serial *serial = port->serial;
 
        dbg("%s - port %d", __func__, port->number);
 
-       if (cp2101_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) {
+       if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) {
                dev_err(&port->dev, "%s - Unable to enable UART\n",
                                __func__);
                return -EPROTO;
        }
 
        /* Configure the termios structure */
-       cp2101_get_termios(tty, port);
+       cp210x_get_termios(tty, port);
 
        /* Set the DTR and RTS pins low */
-       cp2101_tiocmset_port(tty ? (struct usb_serial_port *) tty->driver_data
+       cp210x_tiocmset_port(tty ? (struct usb_serial_port *) tty->driver_data
                        : port,
                NULL, TIOCM_DTR | TIOCM_RTS, 0);
 
        return 0;
 }
 
-static void cp2101_cleanup(struct usb_serial_port *port)
+static void cp210x_cleanup(struct usb_serial_port *port)
 {
        struct usb_serial *serial = port->serial;
 
        }
 }
 
-static void cp2101_close(struct usb_serial_port *port)
+static void cp210x_close(struct usb_serial_port *port)
 {
        dbg("%s - port %d", __func__, port->number);
 
 
        mutex_lock(&port->serial->disc_mutex);
        if (!port->serial->disconnected)
-               cp2101_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE);
+               cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE);
        mutex_unlock(&port->serial->disc_mutex);
 }
 
 /*
- * cp2101_get_termios
+ * cp210x_get_termios
  * Reads the baud rate, data bits, parity, stop bits and flow control mode
  * from the device, corrects any unsupported values, and configures the
  * termios structure to reflect the state of the device
  */
-static void cp2101_get_termios(struct tty_struct *tty,
+static void cp210x_get_termios(struct tty_struct *tty,
        struct usb_serial_port *port)
 {
        unsigned int baud;
 
        if (tty) {
-               cp2101_get_termios_port(tty->driver_data,
+               cp210x_get_termios_port(tty->driver_data,
                        &tty->termios->c_cflag, &baud);
                tty_encode_baud_rate(tty, baud, baud);
        }
        else {
                unsigned int cflag;
                cflag = 0;
-               cp2101_get_termios_port(port, &cflag, &baud);
+               cp210x_get_termios_port(port, &cflag, &baud);
        }
 }
 
 /*
- * cp2101_get_termios_port
- * This is the heart of cp2101_get_termios which always uses a &usb_serial_port.
+ * cp210x_get_termios_port
+ * This is the heart of cp210x_get_termios which always uses a &usb_serial_port.
  */
-static void cp2101_get_termios_port(struct usb_serial_port *port,
+static void cp210x_get_termios_port(struct usb_serial_port *port,
        unsigned int *cflagp, unsigned int *baudp)
 {
        unsigned int cflag, modem_ctl[4];
 
        dbg("%s - port %d", __func__, port->number);
 
-       cp2101_get_config(port, CP210X_GET_BAUDDIV, &baud, 2);
+       cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2);
        /* Convert to baudrate */
        if (baud)
-               baud = cp2101_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud);
+               baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud);
 
        dbg("%s - baud rate = %d", __func__, baud);
        *baudp = baud;
 
        cflag = *cflagp;
 
-       cp2101_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+       cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
        cflag &= ~CSIZE;
        switch (bits & BITS_DATA_MASK) {
        case BITS_DATA_5:
                cflag |= CS8;
                bits &= ~BITS_DATA_MASK;
                bits |= BITS_DATA_8;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        default:
                dbg("%s - Unknown number of data bits, using 8", __func__);
                cflag |= CS8;
                bits &= ~BITS_DATA_MASK;
                bits |= BITS_DATA_8;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        }
 
                                __func__);
                cflag &= ~PARENB;
                bits &= ~BITS_PARITY_MASK;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        case BITS_PARITY_SPACE:
                dbg("%s - parity = SPACE (not supported, disabling parity)",
                                __func__);
                cflag &= ~PARENB;
                bits &= ~BITS_PARITY_MASK;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        default:
                dbg("%s - Unknown parity mode, disabling parity", __func__);
                cflag &= ~PARENB;
                bits &= ~BITS_PARITY_MASK;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        }
 
                dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)",
                                                                __func__);
                bits &= ~BITS_STOP_MASK;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        case BITS_STOP_2:
                dbg("%s - stop bits = 2", __func__);
                dbg("%s - Unknown number of stop bits, using 1 stop bit",
                                                                __func__);
                bits &= ~BITS_STOP_MASK;
-               cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+               cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
                break;
        }
 
-       cp2101_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
+       cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
        if (modem_ctl[0] & 0x0008) {
                dbg("%s - flow control = CRTSCTS", __func__);
                cflag |= CRTSCTS;
        *cflagp = cflag;
 }
 
-static void cp2101_set_termios(struct tty_struct *tty,
+static void cp210x_set_termios(struct tty_struct *tty,
                struct usb_serial_port *port, struct ktermios *old_termios)
 {
        unsigned int cflag, old_cflag;
        tty->termios->c_cflag &= ~CMSPAR;
        cflag = tty->termios->c_cflag;
        old_cflag = old_termios->c_cflag;
-       baud = cp2101_quantise_baudrate(tty_get_baud_rate(tty));
+       baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty));
 
        /* If the baud rate is to be updated*/
        if (baud != tty_termios_baud_rate(old_termios) && baud != 0) {
                dbg("%s - Setting baud rate to %d baud", __func__,
                                baud);
-               if (cp2101_set_config_single(port, CP210X_SET_BAUDDIV,
+               if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV,
                                        ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) {
                        dbg("Baud rate requested not supported by device\n");
                        baud = tty_termios_baud_rate(old_termios);
 
        /* If the number of data bits is to be updated */
        if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
-               cp2101_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+               cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
                bits &= ~BITS_DATA_MASK;
                switch (cflag & CSIZE) {
                case CS5:
                        dbg("%s - data bits = 9", __func__);
                        break;*/
                default:
-                       dbg("cp2101 driver does not "
+                       dbg("cp210x driver does not "
                                        "support the number of bits requested,"
                                        " using 8 bit mode\n");
                                bits |= BITS_DATA_8;
                                break;
                }
-               if (cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+               if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
                        dbg("Number of data bits requested "
                                        "not supported by device\n");
        }
 
        if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) {
-               cp2101_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+               cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
                bits &= ~BITS_PARITY_MASK;
                if (cflag & PARENB) {
                        if (cflag & PARODD) {
                                dbg("%s - parity = EVEN", __func__);
                        }
                }
-               if (cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+               if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
                        dbg("Parity mode not supported "
                                        "by device\n");
        }
 
        if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
-               cp2101_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+               cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
                bits &= ~BITS_STOP_MASK;
                if (cflag & CSTOPB) {
                        bits |= BITS_STOP_2;
                        bits |= BITS_STOP_1;
                        dbg("%s - stop bits = 1", __func__);
                }
-               if (cp2101_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+               if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
                        dbg("Number of stop bits requested "
                                        "not supported by device\n");
        }
 
        if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
-               cp2101_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
+               cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
                dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
                                __func__, modem_ctl[0], modem_ctl[1],
                                modem_ctl[2], modem_ctl[3]);
                dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
                                __func__, modem_ctl[0], modem_ctl[1],
                                modem_ctl[2], modem_ctl[3]);
-               cp2101_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
+               cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
        }
 
 }
 
-static int cp2101_tiocmset (struct tty_struct *tty, struct file *file,
+static int cp210x_tiocmset (struct tty_struct *tty, struct file *file,
                unsigned int set, unsigned int clear)
 {
        struct usb_serial_port *port = tty->driver_data;
-       return cp2101_tiocmset_port(port, file, set, clear);
+       return cp210x_tiocmset_port(port, file, set, clear);
 }
 
-static int cp2101_tiocmset_port(struct usb_serial_port *port, struct file *file,
+static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *file,
                unsigned int set, unsigned int clear)
 {
        unsigned int control = 0;
 
        dbg("%s - control = 0x%.4x", __func__, control);
 
-       return cp2101_set_config(port, CP210X_SET_MHS, &control, 2);
+       return cp210x_set_config(port, CP210X_SET_MHS, &control, 2);
 }
 
-static int cp2101_tiocmget (struct tty_struct *tty, struct file *file)
+static int cp210x_tiocmget (struct tty_struct *tty, struct file *file)
 {
        struct usb_serial_port *port = tty->driver_data;
        unsigned int control;
 
        dbg("%s - port %d", __func__, port->number);
 
-       cp2101_get_config(port, CP210X_GET_MDMSTS, &control, 1);
+       cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1);
 
        result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
                |((control & CONTROL_RTS) ? TIOCM_RTS : 0)
        return result;
 }
 
-static void cp2101_break_ctl (struct tty_struct *tty, int break_state)
+static void cp210x_break_ctl (struct tty_struct *tty, int break_state)
 {
        struct usb_serial_port *port = tty->driver_data;
        unsigned int state;
                state = BREAK_ON;
        dbg("%s - turning break %s", __func__,
                        state == BREAK_OFF ? "off" : "on");
-       cp2101_set_config(port, CP210X_SET_BREAK, &state, 2);
+       cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
 }
 
-static int cp2101_startup(struct usb_serial *serial)
+static int cp210x_startup(struct usb_serial *serial)
 {
-       /* CP2101 buffers behave strangely unless device is reset */
+       /* cp210x buffers behave strangely unless device is reset */
        usb_reset_device(serial->dev);
        return 0;
 }
 
-static void cp2101_shutdown(struct usb_serial *serial)
+static void cp210x_shutdown(struct usb_serial *serial)
 {
        int i;
 
 
        /* Stop reads and writes on all ports */
        for (i = 0; i < serial->num_ports; ++i)
-               cp2101_cleanup(serial->port[i]);
+               cp210x_cleanup(serial->port[i]);
 }
 
-static int __init cp2101_init(void)
+static int __init cp210x_init(void)
 {
        int retval;
 
-       retval = usb_serial_register(&cp2101_device);
+       retval = usb_serial_register(&cp210x_device);
        if (retval)
                return retval; /* Failed to register */
 
-       retval = usb_register(&cp2101_driver);
+       retval = usb_register(&cp210x_driver);
        if (retval) {
                /* Failed to register */
-               usb_serial_deregister(&cp2101_device);
+               usb_serial_deregister(&cp210x_device);
                return retval;
        }
 
        return 0;
 }
 
-static void __exit cp2101_exit(void)
+static void __exit cp210x_exit(void)
 {
-       usb_deregister(&cp2101_driver);
-       usb_serial_deregister(&cp2101_device);
+       usb_deregister(&cp210x_driver);
+       usb_serial_deregister(&cp210x_device);
 }
 
-module_init(cp2101_init);
-module_exit(cp2101_exit);
+module_init(cp210x_init);
+module_exit(cp210x_exit);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);