* See http://ftdi-usb-sio.sourceforge.net for upto date testing info
* and extra documentation
*
+ * (21/Jul/2004) Ian Abbott
+ * Incorporated Steven Turner's code to add support for the FT2232C chip.
+ * The prelimilary port to the 2.6 kernel was by Rus V. Brushkoff. I have
+ * fixed a couple of things.
+ *
* (27/May/2004) Ian Abbott
* Improved throttling code, mostly stolen from the WhiteHEAT driver.
*
* Defererence pointers after any paranoid checks, not before.
*
* (21/Jun/2003) Erik Nygren
- * Added support for Home Electronics Tira-1 IR tranceiver using FT232BM chip.
+ * Added support for Home Electronics Tira-1 IR transceiver using FT232BM chip.
* See <http://www.home-electro.com/tira1.htm>. Only operates properly
* at 100000 and RTS-CTS, so set custom divisor mode on startup.
* Also force the Tira-1 and USB-UIRT to only use their custom baud rates.
* Minor whitespace and comment changes.
*
* (12/Jun/2003) David Norwood
- * Added support for USB-UIRT IR tranceiver using 8U232AM chip.
+ * Added support for USB-UIRT IR transceiver using 8U232AM chip.
* See <http://home.earthlink.net/~jrhees/USBUIRT/index.htm>. Only
* operates properly at 312500, so set custom divisor mode on startup.
*
#include <asm/uaccess.h>
#include <linux/usb.h>
#include <linux/serial.h>
-#ifdef CONFIG_USB_SERIAL_DEBUG
- static int debug = 1;
-#else
- static int debug;
-#endif
-
#include "usb-serial.h"
#include "ftdi_sio.h"
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.4.0"
+#define DRIVER_VERSION "v1.4.2"
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
#define DRIVER_DESC "USB FTDI Serial Converters Driver"
+static int debug;
+
static struct usb_device_id id_table_sio [] = {
{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
+ { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
{ } /* Terminating entry */
};
{ USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_8U232AM_ALT_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_RELAIS_PID, 0, 0x3ff) },
+ { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
+ { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
{ USB_DEVICE_VER(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_XF_632_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_XF_634_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_3, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, PROTEGO_SPECIAL_4, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UM100_PID, 0, 0x3ff) },
{ USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0, 0x3ff) },
+ { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0, 0x3ff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0, 0x3ff) },
{ } /* Terminating entry */
};
{ USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UO100_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_ELV_UM100_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_2_PID, 0x400, 0xffff) },
{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
+ { USB_DEVICE_VER(FTDI_VID, INSIDE_ACCESSO, 0x400, 0xffff) },
+ { USB_DEVICE_VER(INTREPID_VID, INTREPID_VALUECAN_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(INTREPID_VID, INTREPID_NEOVI_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FALCOM_VID, FALCOM_TWIST_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_SUUNTO_SPORTS_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_RM_CANVIEW_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USOTL4_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USTL4_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(BANDB_VID, BANDB_USO9ML2_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, EVER_ECO_PRO_CDS, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) },
{ } /* Terminating entry */
};
};
+static struct usb_device_id id_table_FT2232C[] = {
+ { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
+ { } /* Terminating entry */
+};
+
+
static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
+ { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
+ { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_5_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_MTXORB_6_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID, 0x400, 0xffff) },
+ { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
{ USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E808_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E809_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80A_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80B_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80C_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80D_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80E_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E80F_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E888_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E889_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88A_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88B_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88C_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88D_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88E_PID, 0x400, 0xffff) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_GUDEADS_E88F_PID, 0x400, 0xffff) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
{ USB_DEVICE_VER(FTDI_VID, LINX_SDMUSBQSS_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_MASTERDEVEL2_PID, 0x400, 0xffff) },
{ USB_DEVICE_VER(FTDI_VID, LINX_FUTURE_0_PID, 0x400, 0xffff) },
{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
{ USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
+ { USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
+ { USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
+ { USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
+ { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
+ { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
+ { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
+ { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
+ { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_0_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
+ { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
+ { USB_DEVICE_VER(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID, 0x400, 0xffff) },
{ } /* Terminating entry */
};
.id_table = id_table_combined,
};
+static char *ftdi_chip_name[] = {
+ [SIO] = "SIO", /* the serial part of FT8U100AX */
+ [FT8U232AM] = "FT8U232AM",
+ [FT232BM] = "FT232BM",
+ [FT2232C] = "FT2232C",
+};
+
/* Constants for read urb and write urb */
#define BUFSZ 512
char prev_status, diff_status; /* Used for TIOCMIWAIT */
__u8 rx_flags; /* receive state flags (throttling) */
spinlock_t rx_lock; /* spinlock for receive state */
+ struct work_struct rx_work;
+ int rx_processed;
+
+ __u16 interface; /* FT2232C port interface (0 for FT232/245) */
int force_baud; /* if non-zero, force the baud rate to this value */
int force_rtscts; /* if non-zero, force RTS-CTS to always be enabled */
static int ftdi_SIO_startup (struct usb_serial *serial);
static int ftdi_8U232AM_startup (struct usb_serial *serial);
static int ftdi_FT232BM_startup (struct usb_serial *serial);
+static int ftdi_FT2232C_startup (struct usb_serial *serial);
static int ftdi_USB_UIRT_startup (struct usb_serial *serial);
static int ftdi_HE_TIRA1_startup (struct usb_serial *serial);
static void ftdi_shutdown (struct usb_serial *serial);
static int ftdi_open (struct usb_serial_port *port, struct file *filp);
static void ftdi_close (struct usb_serial_port *port, struct file *filp);
-static int ftdi_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count);
+static int ftdi_write (struct usb_serial_port *port, const unsigned char *buf, int count);
static int ftdi_write_room (struct usb_serial_port *port);
static int ftdi_chars_in_buffer (struct usb_serial_port *port);
static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
-static void ftdi_process_read (struct usb_serial_port *port);
+static void ftdi_process_read (void *param);
static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old);
static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
.shutdown = ftdi_shutdown,
};
+static struct usb_serial_device_type ftdi_FT2232C_device = {
+ .owner = THIS_MODULE,
+ .name = "FTDI FT2232C Compatible",
+ .id_table = id_table_FT2232C,
+ .num_interrupt_in = 0,
+ .num_bulk_in = 1,
+ .num_bulk_out = 1,
+ .num_ports = 1,
+ .open = ftdi_open,
+ .close = ftdi_close,
+ .throttle = ftdi_throttle,
+ .unthrottle = ftdi_unthrottle,
+ .write = ftdi_write,
+ .write_room = ftdi_write_room,
+ .chars_in_buffer = ftdi_chars_in_buffer,
+ .read_bulk_callback = ftdi_read_bulk_callback,
+ .write_bulk_callback = ftdi_write_bulk_callback,
+ .tiocmget = ftdi_tiocmget,
+ .tiocmset = ftdi_tiocmset,
+ .ioctl = ftdi_ioctl,
+ .set_termios = ftdi_set_termios,
+ .break_ctl = ftdi_break_ctl,
+ .attach = ftdi_FT2232C_startup,
+ .shutdown = ftdi_shutdown,
+};
+
static struct usb_serial_device_type ftdi_USB_UIRT_device = {
.owner = THIS_MODULE,
.name = "USB-UIRT Infrared Tranceiver",
-#define WDR_TIMEOUT (HZ * 5 ) /* default urb timeout */
+#define WDR_TIMEOUT 5000 /* default urb timeout */
/* High and low are for DTR, RTS etc etc */
#define HIGH 1
usb_sndctrlpipe(port->serial->dev, 0),
FTDI_SIO_SET_MODEM_CTRL_REQUEST,
FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
- ftdi_high_or_low, 0,
+ ftdi_high_or_low, priv->interface,
buf, 0, WDR_TIMEOUT);
kfree(buf);
usb_sndctrlpipe(port->serial->dev, 0),
FTDI_SIO_SET_MODEM_CTRL_REQUEST,
FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
- ftdi_high_or_low, 0,
+ ftdi_high_or_low, priv->interface,
buf, 0, WDR_TIMEOUT);
kfree(buf);
static int change_speed(struct usb_serial_port *port)
{
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
char *buf;
__u16 urb_value;
__u16 urb_index;
urb_index_value = get_ftdi_divisor(port);
urb_value = (__u16)urb_index_value;
urb_index = (__u16)(urb_index_value >> 16);
+ if (priv->interface) { /* FT2232C */
+ urb_index = (__u16)((urb_index << 8) | priv->interface);
+ }
rv = usb_control_msg(port->serial->dev,
usb_sndctrlpipe(port->serial->dev, 0),
struct ftdi_private *priv = usb_get_serial_port_data(port);
__u32 div_value = 0;
int div_okay = 1;
- char *chip_name = "";
int baud;
/*
if (!baud) baud = 9600;
switch(priv->chip_type) {
case SIO: /* SIO chip */
- chip_name = "SIO";
switch(baud) {
case 300: div_value = ftdi_sio_b300; break;
case 600: div_value = ftdi_sio_b600; break;
}
break;
case FT8U232AM: /* 8U232AM chip */
- chip_name = "FT8U232AM";
if (baud <= 3000000) {
div_value = ftdi_232am_baud_to_divisor(baud);
} else {
}
break;
case FT232BM: /* FT232BM chip */
- chip_name = "FT232BM";
+ case FT2232C: /* FT2232C chip */
if (baud <= 3000000) {
div_value = ftdi_232bm_baud_to_divisor(baud);
} else {
if (div_okay) {
dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
- __FUNCTION__, baud, (unsigned long)div_value, chip_name);
+ __FUNCTION__, baud, (unsigned long)div_value,
+ ftdi_chip_name[priv->chip_type]);
}
return(div_value);
}
-static int get_serial_info(struct usb_serial_port * port, struct serial_struct * retinfo)
+static int get_serial_info(struct usb_serial_port * port, struct serial_struct __user * retinfo)
{
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct serial_struct tmp;
} /* get_serial_info */
-static int set_serial_info(struct usb_serial_port * port, struct serial_struct * newinfo)
+static int set_serial_info(struct usb_serial_port * port, struct serial_struct __user * newinfo)
{ /* set_serial_info */
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct serial_struct new_serial;
goto check_and_exit;
}
- if ((new_serial.baud_base != priv->baud_base) ||
+ if ((new_serial.baud_base != priv->baud_base) &&
(new_serial.baud_base < 9600))
return -EINVAL;
} /* set_serial_info */
+
+/*
+ * ***************************************************************************
+ * Sysfs Attribute
+ * ***************************************************************************
+ */
+
+static ssize_t show_latency_timer(struct device *dev, char *buf)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
+ struct usb_device *udev;
+ unsigned short latency = 0;
+ int rv = 0;
+
+ udev = to_usb_device(dev);
+
+ dbg("%s",__FUNCTION__);
+
+ rv = usb_control_msg(udev,
+ usb_rcvctrlpipe(udev, 0),
+ FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
+ FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
+ 0, priv->interface,
+ (char*) &latency, 1, WDR_TIMEOUT);
+
+ if (rv < 0) {
+ dev_err(dev, "Unable to read latency timer: %i", rv);
+ return -EIO;
+ }
+ return sprintf(buf, "%i\n", latency);
+}
+
+/* Write a new value of the latency timer, in units of milliseconds. */
+static ssize_t store_latency_timer(struct device *dev, const char *valbuf,
+ size_t count)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
+ struct usb_device *udev;
+ char buf[1];
+ int v = simple_strtoul(valbuf, NULL, 10);
+ int rv = 0;
+
+ udev = to_usb_device(dev);
+
+ dbg("%s: setting latency timer = %i", __FUNCTION__, v);
+
+ rv = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
+ FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
+ v, priv->interface,
+ buf, 0, WDR_TIMEOUT);
+
+ if (rv < 0) {
+ dev_err(dev, "Unable to write latency timer: %i", rv);
+ return -EIO;
+ }
+
+ return count;
+}
+
+/* Write an event character directly to the FTDI register. The ASCII
+ value is in the low 8 bits, with the enable bit in the 9th bit. */
+static ssize_t store_event_char(struct device *dev, const char *valbuf,
+ size_t count)
+{
+ struct usb_serial_port *port = to_usb_serial_port(dev);
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
+ struct usb_device *udev;
+ char buf[1];
+ int v = simple_strtoul(valbuf, NULL, 10);
+ int rv = 0;
+
+ udev = to_usb_device(dev);
+
+ dbg("%s: setting event char = %i", __FUNCTION__, v);
+
+ rv = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ FTDI_SIO_SET_EVENT_CHAR_REQUEST,
+ FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
+ v, priv->interface,
+ buf, 0, WDR_TIMEOUT);
+
+ if (rv < 0) {
+ dbg("Unable to write event character: %i", rv);
+ return -EIO;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer);
+static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
+
+static void create_sysfs_attrs(struct usb_serial *serial)
+{
+ struct ftdi_private *priv;
+ struct usb_device *udev;
+
+ dbg("%s",__FUNCTION__);
+
+ priv = usb_get_serial_port_data(serial->port[0]);
+ udev = serial->dev;
+
+ /* XXX I've no idea if the original SIO supports the event_char
+ * sysfs parameter, so I'm playing it safe. */
+ if (priv->chip_type != SIO) {
+ dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
+ device_create_file(&udev->dev, &dev_attr_event_char);
+ if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
+ device_create_file(&udev->dev, &dev_attr_latency_timer);
+ }
+ }
+}
+
+static void remove_sysfs_attrs(struct usb_serial *serial)
+{
+ struct ftdi_private *priv;
+ struct usb_device *udev;
+
+ dbg("%s",__FUNCTION__);
+
+ priv = usb_get_serial_port_data(serial->port[0]);
+ udev = serial->dev;
+
+ /* XXX see create_sysfs_attrs */
+ if (priv->chip_type != SIO) {
+ device_remove_file(&udev->dev, &dev_attr_event_char);
+ if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) {
+ device_remove_file(&udev->dev, &dev_attr_latency_timer);
+ }
+ }
+
+}
+
/*
* ***************************************************************************
* FTDI driver specific functions
priv->flags = ASYNC_LOW_LATENCY;
/* Increase the size of read buffers */
- if (port->bulk_in_buffer) {
- kfree (port->bulk_in_buffer);
- }
+ kfree(port->bulk_in_buffer);
port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
if (!port->bulk_in_buffer) {
kfree (priv);
port->read_urb->transfer_buffer_length = BUFSZ;
}
+ INIT_WORK(&priv->rx_work, ftdi_process_read, port);
+
/* Free port's existing write urb and transfer buffer. */
if (port->write_urb) {
usb_free_urb (port->write_urb);
port->write_urb = NULL;
}
- if (port->bulk_out_buffer) {
- kfree (port->bulk_out_buffer);
- port->bulk_out_buffer = NULL;
- }
+ kfree(port->bulk_out_buffer);
+ port->bulk_out_buffer = NULL;
usb_set_serial_port_data(serial->port[0], priv);
priv->chip_type = FT8U232AM;
priv->baud_base = 48000000 / 2; /* Would be / 16, but FTDI supports 0.125, 0.25 and 0.5 divisor fractions! */
+ create_sysfs_attrs(serial);
+
return (0);
} /* ftdi_8U232AM_startup */
priv->chip_type = FT232BM;
priv->baud_base = 48000000 / 2; /* Would be / 16, but FT232BM supports multiple of 0.125 divisor fractions! */
+ create_sysfs_attrs(serial);
+
return (0);
} /* ftdi_FT232BM_startup */
+/* Startup for the FT2232C chip */
+/* Called from usbserial:serial_probe */
+static int ftdi_FT2232C_startup (struct usb_serial *serial)
+{ /* ftdi_FT2232C_startup */
+ struct ftdi_private *priv;
+ int err;
+ int inter;
+
+ dbg("%s",__FUNCTION__);
+ err = ftdi_common_startup(serial);
+ if (err){
+ return (err);
+ }
+
+ priv = usb_get_serial_port_data(serial->port[0]);
+ priv->chip_type = FT2232C;
+ inter = serial->interface->altsetting->desc.bInterfaceNumber;
+
+ if (inter) {
+ priv->interface = PIT_SIOB;
+ }
+ else {
+ priv->interface = PIT_SIOA;
+ }
+ priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
+
+ create_sysfs_attrs(serial);
+
+ return (0);
+} /* ftdi_FT2232C_startup */
+
/* Startup for the USB-UIRT device, which requires hardwired baudrate (38400 gets mapped to 312500) */
/* Called from usbserial:serial_probe */
static int ftdi_USB_UIRT_startup (struct usb_serial *serial)
dbg("%s", __FUNCTION__);
+ remove_sysfs_attrs(serial);
+
/* all open ports are closed at this point
* (by usbserial.c:__serial_close, which calls ftdi_close)
*/
usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
FTDI_SIO_RESET_SIO,
- 0, buf, 0, WDR_TIMEOUT);
+ priv->interface, buf, 0, WDR_TIMEOUT);
/* Termios defaults are set by usb_serial_init. We don't change
port->tty->termios - this would loose speed settings, etc.
spin_unlock_irqrestore(&priv->rx_lock, flags);
/* Start reading from the device */
+ priv->rx_processed = 0;
usb_fill_bulk_urb(port->read_urb, dev,
usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
static void ftdi_close (struct usb_serial_port *port, struct file *filp)
{ /* ftdi_close */
unsigned int c_cflag = port->tty->termios->c_cflag;
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
char buf[1];
dbg("%s", __FUNCTION__);
usb_sndctrlpipe(port->serial->dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0, 0, buf, 0, WDR_TIMEOUT) < 0) {
+ 0, priv->interface, buf, 0,
+ WDR_TIMEOUT) < 0) {
err("error from flowcontrol urb");
}
err("Error from RTS LOW urb");
}
} /* Note change no line if hupcl is off */
+
+ /* cancel any scheduled reading */
+ cancel_delayed_work(&priv->rx_work);
+ flush_scheduled_work();
/* shutdown our bulk read */
- if (port->read_urb) {
- if (usb_unlink_urb (port->read_urb) < 0) {
- /* Generally, this isn't an error. If the previous
- read bulk callback occurred (or is about to occur)
- while the port was being closed or was throtted
- (and is still throttled), the read urb will not
- have been submitted. */
- dbg("%s - failed to unlink read urb (generally not an error)", __FUNCTION__);
- }
- }
+ if (port->read_urb)
+ usb_kill_urb(port->read_urb);
} /* ftdi_close */
*
* The new devices do not require this byte
*/
-static int ftdi_write (struct usb_serial_port *port, int from_user,
+static int ftdi_write (struct usb_serial_port *port,
const unsigned char *buf, int count)
{ /* ftdi_write */
struct ftdi_private *priv = usb_get_serial_port_data(port);
dbg("%s port %d, %d bytes", __FUNCTION__, port->number, count);
if (count == 0) {
- err("write request of 0 bytes");
+ dbg("write request of 0 bytes");
return 0;
}
/* Write the control byte at the front of the packet*/
*first_byte = 1 | ((user_pktsz) << 2);
/* Copy data for packet */
- if (from_user) {
- if (copy_from_user (first_byte + data_offset,
- current_position, user_pktsz)){
- kfree (buffer);
- usb_free_urb (urb);
- return -EFAULT;
- }
- } else {
- memcpy (first_byte + data_offset,
- current_position, user_pktsz);
- }
+ memcpy (first_byte + data_offset,
+ current_position, user_pktsz);
first_byte += user_pktsz + data_offset;
current_position += user_pktsz;
todo -= user_pktsz;
} else {
/* No control byte required. */
/* Copy in the data to send */
- if (from_user) {
- if (copy_from_user (buffer, buf, count)) {
- kfree (buffer);
- usb_free_urb (urb);
- return -EFAULT;
- }
- } else {
- memcpy (buffer, buf, count);
- }
+ memcpy (buffer, buf, count);
}
- usb_serial_debug_data (__FILE__, __FUNCTION__, transfer_size, buffer);
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, transfer_size, buffer);
/* fill the buffer and send it */
usb_fill_bulk_urb(urb, port->serial->dev,
if (status) {
err("%s - failed submitting write urb, error %d", __FUNCTION__, status);
count = status;
+ kfree (buffer);
}
/* we are done with this urb, so let the host driver
return;
}
- /* If throttled, delay receive processing until unthrottled. */
- spin_lock(&priv->rx_lock);
- if (priv->rx_flags & THROTTLED) {
- dbg("Deferring read urb processing until unthrottled");
- priv->rx_flags |= ACTUALLY_THROTTLED;
- spin_unlock(&priv->rx_lock);
- return;
- }
- spin_unlock(&priv->rx_lock);
-
ftdi_process_read(port);
} /* ftdi_read_bulk_callback */
-static void ftdi_process_read (struct usb_serial_port *port)
+static void ftdi_process_read (void *param)
{ /* ftdi_process_read */
+ struct usb_serial_port *port = (struct usb_serial_port*)param;
struct urb *urb;
struct tty_struct *tty;
struct ftdi_private *priv;
int result;
int need_flip;
int packet_offset;
+ unsigned long flags;
dbg("%s - port %d", __FUNCTION__, port->number);
data = urb->transfer_buffer;
- /* The first two bytes of every read packet are status */
- if (urb->actual_length > 2) {
- usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
+ if (priv->rx_processed) {
+ dbg("%s - already processed: %d bytes, %d remain", __FUNCTION__,
+ priv->rx_processed,
+ urb->actual_length - priv->rx_processed);
} else {
- dbg("Status only: %03oo %03oo",data[0],data[1]);
- }
+ /* The first two bytes of every read packet are status */
+ if (urb->actual_length > 2) {
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+ } else {
+ dbg("Status only: %03oo %03oo",data[0],data[1]);
+ }
+ }
/* TO DO -- check for hung up line and handle appropriately: */
/* if CD is dropped and the line is not CLOCAL then we should hangup */
need_flip = 0;
- for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
+ for (packet_offset = priv->rx_processed; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
+ int length;
+
/* Compare new line status to the old one, signal if different */
+ /* N.B. packet may be processed more than once, but differences
+ * are only processed once. */
if (priv != NULL) {
char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
if (new_status != priv->prev_status) {
}
}
+ length = min(PKTSZ, urb->actual_length-packet_offset)-2;
+ if (length < 0) {
+ err("%s - bad packet length: %d", __FUNCTION__, length+2);
+ length = 0;
+ }
+
+ /* have to make sure we don't overflow the buffer
+ with tty_insert_flip_char's */
+ if (tty->flip.count+length > TTY_FLIPBUF_SIZE) {
+ tty_flip_buffer_push(tty);
+ need_flip = 0;
+
+ if (tty->flip.count != 0) {
+ /* flip didn't work, this happens when ftdi_process_read() is
+ * called from ftdi_unthrottle, because TTY_DONT_FLIP is set */
+ dbg("%s - flip buffer push failed", __FUNCTION__);
+ break;
+ }
+ }
+ if (priv->rx_flags & THROTTLED) {
+ dbg("%s - throttled", __FUNCTION__);
+ break;
+ }
+ if (tty->ldisc.receive_room(tty)-tty->flip.count < length) {
+ /* break out & wait for throttling/unthrottling to happen */
+ dbg("%s - receive room low", __FUNCTION__);
+ break;
+ }
+
/* Handle errors and break */
error_flag = TTY_NORMAL;
/* Although the device uses a bitmask and hence can have multiple */
error_flag = TTY_FRAME;
dbg("FRAMING error");
}
- if (urb->actual_length > packet_offset + 2) {
- for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
- /* have to make sure we don't overflow the buffer
- with tty_insert_flip_char's */
- if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
- tty_flip_buffer_push(tty);
- }
+ if (length > 0) {
+ for (i = 2; i < length+2; i++) {
/* Note that the error flag is duplicated for
every character received since we don't know
which character it applied to */
tty_flip_buffer_push(tty);
}
+ if (packet_offset < urb->actual_length) {
+ /* not completely processed - record progress */
+ priv->rx_processed = packet_offset;
+ dbg("%s - incomplete, %d bytes processed, %d remain",
+ __FUNCTION__, packet_offset,
+ urb->actual_length - packet_offset);
+ /* check if we were throttled while processing */
+ spin_lock_irqsave(&priv->rx_lock, flags);
+ if (priv->rx_flags & THROTTLED) {
+ priv->rx_flags |= ACTUALLY_THROTTLED;
+ spin_unlock_irqrestore(&priv->rx_lock, flags);
+ dbg("%s - deferring remainder until unthrottled",
+ __FUNCTION__);
+ return;
+ }
+ spin_unlock_irqrestore(&priv->rx_lock, flags);
+ /* if the port is closed stop trying to read */
+ if (port->open_count > 0){
+ /* delay processing of remainder */
+ schedule_delayed_work(&priv->rx_work, 1);
+ } else {
+ dbg("%s - port is closed", __FUNCTION__);
+ }
+ return;
+ }
+
+ /* urb is completely processed */
+ priv->rx_processed = 0;
+
/* if the port is closed stop trying to read */
if (port->open_count > 0){
/* Continue trying to always read */
if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
FTDI_SIO_SET_DATA_REQUEST,
FTDI_SIO_SET_DATA_REQUEST_TYPE,
- urb_value , 0,
+ urb_value , priv->interface,
buf, 0, WDR_TIMEOUT) < 0) {
err("%s FAILED to enable/disable break state (state was %d)", __FUNCTION__,break_state);
}
if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
FTDI_SIO_SET_DATA_REQUEST,
FTDI_SIO_SET_DATA_REQUEST_TYPE,
- urb_value , 0,
+ urb_value , priv->interface,
buf, 0, 100) < 0) {
err("%s FAILED to set databits/stopbits/parity", __FUNCTION__);
}
if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0, 0,
+ 0, priv->interface,
buf, 0, WDR_TIMEOUT) < 0) {
err("%s error from disable flowcontrol urb", __FUNCTION__);
}
if (change_speed(port)) {
err("%s urb failed to set baurdrate", __FUNCTION__);
}
+ /* Ensure RTS and DTR are raised */
+ else if (set_dtr(port, HIGH) < 0){
+ err("%s Error from DTR HIGH urb", __FUNCTION__);
+ }
+ else if (set_rts(port, HIGH) < 0){
+ err("%s Error from RTS HIGH urb", __FUNCTION__);
+ }
}
/* Set flow control */
usb_sndctrlpipe(dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0 , FTDI_SIO_RTS_CTS_HS,
+ 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
buf, 0, WDR_TIMEOUT) < 0) {
err("urb failed to set to rts/cts flow control");
}
usb_sndctrlpipe(dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- urb_value , FTDI_SIO_XON_XOFF_HS,
+ urb_value , (FTDI_SIO_XON_XOFF_HS
+ | priv->interface),
buf, 0, WDR_TIMEOUT) < 0) {
err("urb failed to set to xon/xoff flow control");
}
usb_sndctrlpipe(dev, 0),
FTDI_SIO_SET_FLOW_CTRL_REQUEST,
FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0, 0,
+ 0, priv->interface,
buf, 0, WDR_TIMEOUT) < 0) {
err("urb failed to clear flow control");
}
break;
case FT8U232AM:
case FT232BM:
+ case FT2232C:
/* the 8U232AM returns a two byte value (the sio is a 1 byte value) - in the same
format as the data returned from the in point */
if ((ret = usb_control_msg(port->serial->dev,
usb_rcvctrlpipe(port->serial->dev, 0),
FTDI_SIO_GET_MODEM_STATUS_REQUEST,
FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
- 0, 0,
+ 0, priv->interface,
buf, 2, WDR_TIMEOUT)) < 0 ) {
err("%s Could not get modem status of device - err: %d", __FUNCTION__,
ret);
{
int ret;
+ dbg("%s TIOCMSET", __FUNCTION__);
if (set & TIOCM_DTR){
if ((ret = set_dtr(port, HIGH)) < 0) {
err("Urb to set DTR failed");
case TIOCMBIS: /* turns on (Sets) the lines as specified by the mask */
dbg("%s TIOCMBIS", __FUNCTION__);
- if (get_user(mask, (unsigned long *) arg))
+ if (get_user(mask, (unsigned long __user *) arg))
return -EFAULT;
if (mask & TIOCM_DTR){
if ((ret = set_dtr(port, HIGH)) < 0) {
case TIOCMBIC: /* turns off (Clears) the lines as specified by the mask */
dbg("%s TIOCMBIC", __FUNCTION__);
- if (get_user(mask, (unsigned long *) arg))
+ if (get_user(mask, (unsigned long __user *) arg))
return -EFAULT;
if (mask & TIOCM_DTR){
if ((ret = set_dtr(port, LOW)) < 0){
*/
case TIOCGSERIAL: /* gets serial port data */
- return get_serial_info(port, (struct serial_struct *) arg);
+ return get_serial_info(port, (struct serial_struct __user *) arg);
case TIOCSSERIAL: /* sets serial port data */
- return set_serial_info(port, (struct serial_struct *) arg);
+ return set_serial_info(port, (struct serial_struct __user *) arg);
/*
* Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
spin_unlock_irqrestore(&priv->rx_lock, flags);
if (actually_throttled)
- ftdi_process_read(port);
+ schedule_work(&priv->rx_work);
}
static int __init ftdi_init (void)
retval = usb_serial_register(&ftdi_FT232BM_device);
if (retval)
goto failed_FT232BM_register;
+ retval = usb_serial_register(&ftdi_FT2232C_device);
+ if (retval)
+ goto failed_FT2232C_register;
retval = usb_serial_register(&ftdi_USB_UIRT_device);
if (retval)
goto failed_USB_UIRT_register;
failed_HE_TIRA1_register:
usb_serial_deregister(&ftdi_USB_UIRT_device);
failed_USB_UIRT_register:
+ usb_serial_deregister(&ftdi_FT2232C_device);
+failed_FT2232C_register:
usb_serial_deregister(&ftdi_FT232BM_device);
failed_FT232BM_register:
usb_serial_deregister(&ftdi_8U232AM_device);
usb_deregister (&ftdi_driver);
usb_serial_deregister (&ftdi_HE_TIRA1_device);
usb_serial_deregister (&ftdi_USB_UIRT_device);
+ usb_serial_deregister (&ftdi_FT2232C_device);
usb_serial_deregister (&ftdi_FT232BM_device);
usb_serial_deregister (&ftdi_8U232AM_device);
usb_serial_deregister (&ftdi_SIO_device);
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_LICENSE("GPL");
-MODULE_PARM(debug, "i");
+module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
git://git.onelab.eu / linux-2.6.git / blobdiff