/* Code originates and was built up from ftdi_sio, belkin, pl2303 and others. */
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <linux/spinlock.h>
#include <linux/usb.h>
+#include <linux/usb/serial.h>
#include <linux/serial.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
-#include "usb-serial.h"
#include "cypress_m8.h"
{ } /* Terminating entry */
};
+static struct usb_device_id id_table_nokiaca42v2 [] = {
+ { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) },
+ { } /* Terminating entry */
+};
+
static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
+ { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) },
{ } /* Terminating entry */
};
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
struct cypress_private {
int cmd_ctrl; /* always set this to 1 before issuing a command */
struct cypress_buf *buf; /* write buffer */
int write_urb_in_use; /* write urb in use indicator */
+ int write_urb_interval; /* interval to use for write urb */
+ int read_urb_interval; /* interval to use for read urb */
+ int comm_is_ok; /* true if communication is (still) ok */
int termios_initialized;
__u8 line_control; /* holds dtr / rts value */
__u8 current_status; /* received from last read - info on dsr,cts,cd,ri,etc */
wait_queue_head_t delta_msr_wait; /* used for TIOCMIWAIT */
char prev_status, diff_status; /* used for TIOCMIWAIT */
/* we pass a pointer to this as the arguement sent to cypress_set_termios old_termios */
- struct termios tmp_termios; /* stores the old termios settings */
+ struct ktermios tmp_termios; /* stores the old termios settings */
};
/* write buffer structure */
/* function prototypes for the Cypress USB to serial device */
static int cypress_earthmate_startup (struct usb_serial *serial);
static int cypress_hidcom_startup (struct usb_serial *serial);
+static int cypress_ca42v2_startup (struct usb_serial *serial);
static void cypress_shutdown (struct usb_serial *serial);
static int cypress_open (struct usb_serial_port *port, struct file *filp);
static void cypress_close (struct usb_serial_port *port, struct file *filp);
static void cypress_send (struct usb_serial_port *port);
static int cypress_write_room (struct usb_serial_port *port);
static int cypress_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
-static void cypress_set_termios (struct usb_serial_port *port, struct termios * old);
+static void cypress_set_termios (struct usb_serial_port *port, struct ktermios * old);
static int cypress_tiocmget (struct usb_serial_port *port, struct file *file);
static int cypress_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
static int cypress_chars_in_buffer (struct usb_serial_port *port);
static void cypress_throttle (struct usb_serial_port *port);
static void cypress_unthrottle (struct usb_serial_port *port);
-static void cypress_read_int_callback (struct urb *urb, struct pt_regs *regs);
-static void cypress_write_int_callback (struct urb *urb, struct pt_regs *regs);
+static void cypress_set_dead (struct usb_serial_port *port);
+static void cypress_read_int_callback (struct urb *urb);
+static void cypress_write_int_callback (struct urb *urb);
/* baud helper functions */
static int mask_to_rate (unsigned mask);
static unsigned rate_to_mask (int rate);
static unsigned int cypress_buf_get(struct cypress_buf *cb, char *buf, unsigned int count);
-static struct usb_serial_device_type cypress_earthmate_device = {
- .owner = THIS_MODULE,
- .name = "DeLorme Earthmate USB",
- .short_name = "earthmate",
+static struct usb_serial_driver cypress_earthmate_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "earthmate",
+ },
+ .description = "DeLorme Earthmate USB",
.id_table = id_table_earthmate,
.num_interrupt_in = 1,
.num_interrupt_out = 1,
.write_int_callback = cypress_write_int_callback,
};
-static struct usb_serial_device_type cypress_hidcom_device = {
- .owner = THIS_MODULE,
- .name = "HID->COM RS232 Adapter",
- .short_name = "cyphidcom",
+static struct usb_serial_driver cypress_hidcom_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "cyphidcom",
+ },
+ .description = "HID->COM RS232 Adapter",
.id_table = id_table_cyphidcomrs232,
.num_interrupt_in = 1,
.num_interrupt_out = 1,
.write_int_callback = cypress_write_int_callback,
};
+static struct usb_serial_driver cypress_ca42v2_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "nokiaca42v2",
+ },
+ .description = "Nokia CA-42 V2 Adapter",
+ .id_table = id_table_nokiaca42v2,
+ .num_interrupt_in = 1,
+ .num_interrupt_out = 1,
+ .num_bulk_in = NUM_DONT_CARE,
+ .num_bulk_out = NUM_DONT_CARE,
+ .num_ports = 1,
+ .attach = cypress_ca42v2_startup,
+ .shutdown = cypress_shutdown,
+ .open = cypress_open,
+ .close = cypress_close,
+ .write = cypress_write,
+ .write_room = cypress_write_room,
+ .ioctl = cypress_ioctl,
+ .set_termios = cypress_set_termios,
+ .tiocmget = cypress_tiocmget,
+ .tiocmset = cypress_tiocmset,
+ .chars_in_buffer = cypress_chars_in_buffer,
+ .throttle = cypress_throttle,
+ .unthrottle = cypress_unthrottle,
+ .read_int_callback = cypress_read_int_callback,
+ .write_int_callback = cypress_write_int_callback,
+};
/*****************************************************************************
* Cypress serial helper functions
priv = usb_get_serial_port_data(port);
+ if (!priv->comm_is_ok)
+ return -ENODEV;
+
switch(cypress_request_type) {
case CYPRESS_SET_CONFIG:
__FUNCTION__);
new_baudrate = priv->baud_rate;
}
+ } else if (priv->chiptype == CT_CA42V2) {
+ if ( (new_baudrate = mask_to_rate(baud_mask)) == -1) {
+ err("%s - failed setting baud rate, unsupported speed",
+ __FUNCTION__);
+ new_baudrate = priv->baud_rate;
+ }
} else if (priv->chiptype == CT_GENERIC) {
if ( (new_baudrate = mask_to_rate(baud_mask)) == -1) {
err("%s - failed setting baud rate, unsupported speed",
if (tries++ >= 3)
break;
- if (retval == EPIPE)
- usb_clear_halt(port->serial->dev, 0x00);
- } while (retval != 8 && retval != ENODEV);
+ } while (retval != 8 && retval != -ENODEV);
- if (retval != 8)
+ if (retval != 8) {
err("%s - failed sending serial line settings - %d", __FUNCTION__, retval);
- else {
+ cypress_set_dead(port);
+ } else {
spin_lock_irqsave(&priv->lock, flags);
priv->baud_rate = new_baudrate;
priv->cbr_mask = baud_mask;
if (tries++ >= 3)
break;
- if (retval == EPIPE)
- usb_clear_halt(port->serial->dev, 0x00);
- } while (retval != 5 && retval != ENODEV);
+ } while (retval != 5 && retval != -ENODEV);
if (retval != 5) {
- err("%s - failed to retreive serial line settings - %d", __FUNCTION__, retval);
+ err("%s - failed to retrieve serial line settings - %d", __FUNCTION__, retval);
+ cypress_set_dead(port);
return retval;
} else {
spin_lock_irqsave(&priv->lock, flags);
} /* cypress_serial_control */
+static void cypress_set_dead(struct usb_serial_port *port)
+{
+ struct cypress_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!priv->comm_is_ok) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return;
+ }
+ priv->comm_is_ok = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ err("cypress_m8 suspending failing port %d - interval might be too short",
+ port->number);
+}
+
+
/* given a baud mask, it will return integer baud on success */
static int mask_to_rate (unsigned mask)
{
static int generic_startup (struct usb_serial *serial)
{
struct cypress_private *priv;
+ struct usb_serial_port *port = serial->port[0];
- dbg("%s - port %d", __FUNCTION__, serial->port[0]->number);
+ dbg("%s - port %d", __FUNCTION__, port->number);
- priv = kmalloc(sizeof (struct cypress_private), GFP_KERNEL);
+ priv = kzalloc(sizeof (struct cypress_private), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- memset(priv, 0x00, sizeof (struct cypress_private));
+ priv->comm_is_ok = !0;
spin_lock_init(&priv->lock);
priv->buf = cypress_buf_alloc(CYPRESS_BUF_SIZE);
if (priv->buf == NULL) {
usb_reset_configuration (serial->dev);
- interval = 1;
priv->cmd_ctrl = 0;
priv->line_control = 0;
priv->termios_initialized = 0;
priv->rx_flags = 0;
priv->cbr_mask = B300;
- usb_set_serial_port_data(serial->port[0], priv);
+ if (interval > 0) {
+ priv->write_urb_interval = interval;
+ priv->read_urb_interval = interval;
+ dbg("%s - port %d read & write intervals forced to %d",
+ __FUNCTION__,port->number,interval);
+ } else {
+ priv->write_urb_interval = port->interrupt_out_urb->interval;
+ priv->read_urb_interval = port->interrupt_in_urb->interval;
+ dbg("%s - port %d intervals: read=%d write=%d",
+ __FUNCTION__,port->number,
+ priv->read_urb_interval,priv->write_urb_interval);
+ }
+ usb_set_serial_port_data(port, priv);
- return (0);
-}
+ return 0;
+}
static int cypress_earthmate_startup (struct usb_serial *serial)
dbg("%s", __FUNCTION__);
if (generic_startup(serial)) {
- dbg("%s - Failed setting up port %d", __FUNCTION__, serial->port[0]->number);
+ dbg("%s - Failed setting up port %d", __FUNCTION__,
+ serial->port[0]->number);
return 1;
}
priv = usb_get_serial_port_data(serial->port[0]);
priv->chiptype = CT_EARTHMATE;
-
- return (0);
+
+ return 0;
} /* cypress_earthmate_startup */
dbg("%s", __FUNCTION__);
if (generic_startup(serial)) {
- dbg("%s - Failed setting up port %d", __FUNCTION__, serial->port[0]->number);
+ dbg("%s - Failed setting up port %d", __FUNCTION__,
+ serial->port[0]->number);
return 1;
}
priv = usb_get_serial_port_data(serial->port[0]);
priv->chiptype = CT_CYPHIDCOM;
- return (0);
+ return 0;
} /* cypress_hidcom_startup */
+static int cypress_ca42v2_startup (struct usb_serial *serial)
+{
+ struct cypress_private *priv;
+
+ dbg("%s", __FUNCTION__);
+
+ if (generic_startup(serial)) {
+ dbg("%s - Failed setting up port %d", __FUNCTION__,
+ serial->port[0]->number);
+ return 1;
+ }
+
+ priv = usb_get_serial_port_data(serial->port[0]);
+ priv->chiptype = CT_CA42V2;
+
+ return 0;
+} /* cypress_ca42v2_startup */
+
+
static void cypress_shutdown (struct usb_serial *serial)
{
struct cypress_private *priv;
dbg("%s - port %d", __FUNCTION__, port->number);
+ if (!priv->comm_is_ok)
+ return -EIO;
+
/* clear halts before open */
usb_clear_halt(serial->dev, 0x81);
usb_clear_halt(serial->dev, 0x02);
usb_fill_int_urb(port->interrupt_in_urb, serial->dev,
usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),
port->interrupt_in_urb->transfer_buffer, port->interrupt_in_urb->transfer_buffer_length,
- cypress_read_int_callback, port, interval);
+ cypress_read_int_callback, port, priv->read_urb_interval);
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result){
dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
+ cypress_set_dead(port);
}
return result;
timeout = max((HZ*2560)/bps,HZ/10);
else
timeout = 2*HZ;
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(timeout);
+ schedule_timeout_interruptible(timeout);
dbg("%s - stopping urbs", __FUNCTION__);
usb_kill_urb (port->interrupt_in_urb);
struct cypress_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
+ if (!priv->comm_is_ok)
+ return;
+
dbg("%s - port %d", __FUNCTION__, port->number);
dbg("%s - interrupt out size is %d", __FUNCTION__, port->interrupt_out_size);
usb_serial_debug_data(debug, &port->dev, __FUNCTION__, port->interrupt_out_size,
port->interrupt_out_urb->transfer_buffer);
- port->interrupt_out_urb->transfer_buffer_length = actual_size;
- port->interrupt_out_urb->dev = port->serial->dev;
- port->interrupt_out_urb->interval = interval;
+ usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
+ usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
+ port->interrupt_out_buffer, port->interrupt_out_size,
+ cypress_write_int_callback, port, priv->write_urb_interval);
result = usb_submit_urb (port->interrupt_out_urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__,
result);
priv->write_urb_in_use = 0;
+ cypress_set_dead(port);
}
spin_lock_irqsave(&priv->lock, flags);
priv->bytes_out += count; /* do not count the line control and size bytes */
spin_unlock_irqrestore(&priv->lock, flags);
- schedule_work(&port->work);
+ usb_serial_port_softint(port);
} /* cypress_send */
switch (cmd) {
case TIOCGSERIAL:
- if (copy_to_user((void __user *)arg, port->tty->termios, sizeof(struct termios))) {
+ if (copy_to_user((void __user *)arg, port->tty->termios, sizeof(struct ktermios))) {
return -EFAULT;
}
return (0);
break;
case TIOCSSERIAL:
- if (copy_from_user(port->tty->termios, (void __user *)arg, sizeof(struct termios))) {
- return -EFAULT;
- }
- /* here we need to call cypress_set_termios to invoke the new settings */
- cypress_set_termios(port, &priv->tmp_termios);
- return (0);
- break;
- /* these are called when setting baud rate from gpsd */
- case TCGETS:
- if (copy_to_user((void __user *)arg, port->tty->termios, sizeof(struct termios))) {
- return -EFAULT;
- }
- return (0);
- break;
- case TCSETS:
- if (copy_from_user(port->tty->termios, (void __user *)arg, sizeof(struct termios))) {
+ if (copy_from_user(port->tty->termios, (void __user *)arg, sizeof(struct ktermios))) {
return -EFAULT;
}
/* here we need to call cypress_set_termios to invoke the new settings */
} /* cypress_ioctl */
-static void cypress_set_termios (struct usb_serial_port *port, struct termios *old_termios)
+static void cypress_set_termios (struct usb_serial_port *port,
+ struct ktermios *old_termios)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
struct tty_struct *tty;
unsigned long flags;
__u8 oldlines;
int linechange = 0;
-
+
dbg("%s - port %d", __FUNCTION__, port->number);
tty = port->tty;
if (!priv->termios_initialized) {
if (priv->chiptype == CT_EARTHMATE) {
*(tty->termios) = tty_std_termios;
- tty->termios->c_cflag = B4800 | CS8 | CREAD | HUPCL | CLOCAL;
+ tty->termios->c_cflag = B4800 | CS8 | CREAD | HUPCL |
+ CLOCAL;
} else if (priv->chiptype == CT_CYPHIDCOM) {
*(tty->termios) = tty_std_termios;
- tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL |
+ CLOCAL;
+ } else if (priv->chiptype == CT_CA42V2) {
+ *(tty->termios) = tty_std_termios;
+ tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL |
+ CLOCAL;
}
priv->termios_initialized = 1;
}
/* check if there are new settings */
if (old_termios) {
if ((cflag != old_termios->c_cflag) ||
- (RELEVANT_IFLAG(iflag) != RELEVANT_IFLAG(old_termios->c_iflag))) {
- dbg("%s - attempting to set new termios settings", __FUNCTION__);
- /* should make a copy of this in case something goes wrong in the function, we can restore it */
+ (RELEVANT_IFLAG(iflag) !=
+ RELEVANT_IFLAG(old_termios->c_iflag))) {
+ dbg("%s - attempting to set new termios settings",
+ __FUNCTION__);
+ /* should make a copy of this in case something goes
+ * wrong in the function, we can restore it */
spin_lock_irqsave(&priv->lock, flags);
priv->tmp_termios = *(tty->termios);
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
} else {
dbg("%s - nothing to do, exiting", __FUNCTION__);
return;
/* set number of data bits, parity, stop bits */
/* when parity is disabled the parity type bit is ignored */
- stop_bits = cflag & CSTOPB ? 1 : 0; /* 1 means 2 stop bits, 0 means 1 stop bit */
-
+ /* 1 means 2 stop bits, 0 means 1 stop bit */
+ stop_bits = cflag & CSTOPB ? 1 : 0;
+
if (cflag & PARENB) {
parity_enable = 1;
- parity_type = cflag & PARODD ? 1 : 0; /* 1 means odd parity, 0 means even parity */
+ /* 1 means odd parity, 0 means even parity */
+ parity_type = cflag & PARODD ? 1 : 0;
} else
parity_enable = parity_type = 0;
if (cflag & CSIZE) {
switch (cflag & CSIZE) {
- case CS5: data_bits = 0; break;
- case CS6: data_bits = 1; break;
- case CS7: data_bits = 2; break;
- case CS8: data_bits = 3; break;
- default: err("%s - CSIZE was set, but not CS5-CS8", __FUNCTION__); data_bits = 3;
+ case CS5:
+ data_bits = 0;
+ break;
+ case CS6:
+ data_bits = 1;
+ break;
+ case CS7:
+ data_bits = 2;
+ break;
+ case CS8:
+ data_bits = 3;
+ break;
+ default:
+ err("%s - CSIZE was set, but not CS5-CS8",
+ __FUNCTION__);
+ data_bits = 3;
}
} else
data_bits = 3;
} else {
baud_mask = (cflag & CBAUD);
switch(baud_mask) {
- case B300: dbg("%s - setting baud 300bps", __FUNCTION__); break;
- case B600: dbg("%s - setting baud 600bps", __FUNCTION__); break;
- case B1200: dbg("%s - setting baud 1200bps", __FUNCTION__); break;
- case B2400: dbg("%s - setting baud 2400bps", __FUNCTION__); break;
- case B4800: dbg("%s - setting baud 4800bps", __FUNCTION__); break;
- case B9600: dbg("%s - setting baud 9600bps", __FUNCTION__); break;
- case B19200: dbg("%s - setting baud 19200bps", __FUNCTION__); break;
- case B38400: dbg("%s - setting baud 38400bps", __FUNCTION__); break;
- case B57600: dbg("%s - setting baud 57600bps", __FUNCTION__); break;
- case B115200: dbg("%s - setting baud 115200bps", __FUNCTION__); break;
- default: dbg("%s - unknown masked baud rate", __FUNCTION__);
+ case B300:
+ dbg("%s - setting baud 300bps", __FUNCTION__);
+ break;
+ case B600:
+ dbg("%s - setting baud 600bps", __FUNCTION__);
+ break;
+ case B1200:
+ dbg("%s - setting baud 1200bps", __FUNCTION__);
+ break;
+ case B2400:
+ dbg("%s - setting baud 2400bps", __FUNCTION__);
+ break;
+ case B4800:
+ dbg("%s - setting baud 4800bps", __FUNCTION__);
+ break;
+ case B9600:
+ dbg("%s - setting baud 9600bps", __FUNCTION__);
+ break;
+ case B19200:
+ dbg("%s - setting baud 19200bps", __FUNCTION__);
+ break;
+ case B38400:
+ dbg("%s - setting baud 38400bps", __FUNCTION__);
+ break;
+ case B57600:
+ dbg("%s - setting baud 57600bps", __FUNCTION__);
+ break;
+ case B115200:
+ dbg("%s - setting baud 115200bps", __FUNCTION__);
+ break;
+ default:
+ dbg("%s - unknown masked baud rate", __FUNCTION__);
}
priv->line_control = (CONTROL_DTR | CONTROL_RTS);
}
spin_unlock_irqrestore(&priv->lock, flags);
-
- dbg("%s - sending %d stop_bits, %d parity_enable, %d parity_type, %d data_bits (+5)", __FUNCTION__,
- stop_bits, parity_enable, parity_type, data_bits);
- cypress_serial_control(port, baud_mask, data_bits, stop_bits, parity_enable,
- parity_type, 0, CYPRESS_SET_CONFIG);
+ dbg("%s - sending %d stop_bits, %d parity_enable, %d parity_type, "
+ "%d data_bits (+5)", __FUNCTION__, stop_bits,
+ parity_enable, parity_type, data_bits);
+
+ cypress_serial_control(port, baud_mask, data_bits, stop_bits,
+ parity_enable, parity_type, 0, CYPRESS_SET_CONFIG);
- /* we perform a CYPRESS_GET_CONFIG so that the current settings are filled into the private structure
- * this should confirm that all is working if it returns what we just set */
+ /* we perform a CYPRESS_GET_CONFIG so that the current settings are
+ * filled into the private structure this should confirm that all is
+ * working if it returns what we just set */
cypress_serial_control(port, 0, 0, 0, 0, 0, 0, CYPRESS_GET_CONFIG);
- /* Here we can define custom tty settings for devices
- *
- * the main tty termios flag base comes from empeg.c
- */
+ /* Here we can define custom tty settings for devices; the main tty
+ * termios flag base comes from empeg.c */
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irqsave(&priv->lock, flags);
if ( (priv->chiptype == CT_EARTHMATE) && (priv->baud_rate == 4800) ) {
-
- dbg("Using custom termios settings for a baud rate of 4800bps.");
+ dbg("Using custom termios settings for a baud rate of "
+ "4800bps.");
/* define custom termios settings for NMEA protocol */
tty->termios->c_iflag /* input modes - */
- &= ~(IGNBRK /* disable ignore break */
- | BRKINT /* disable break causes interrupt */
- | PARMRK /* disable mark parity errors */
- | ISTRIP /* disable clear high bit of input characters */
- | INLCR /* disable translate NL to CR */
- | IGNCR /* disable ignore CR */
- | ICRNL /* disable translate CR to NL */
- | IXON); /* disable enable XON/XOFF flow control */
-
+ &= ~(IGNBRK /* disable ignore break */
+ | BRKINT /* disable break causes interrupt */
+ | PARMRK /* disable mark parity errors */
+ | ISTRIP /* disable clear high bit of input char */
+ | INLCR /* disable translate NL to CR */
+ | IGNCR /* disable ignore CR */
+ | ICRNL /* disable translate CR to NL */
+ | IXON); /* disable enable XON/XOFF flow control */
+
tty->termios->c_oflag /* output modes */
- &= ~OPOST; /* disable postprocess output characters */
-
- tty->termios->c_lflag /* line discipline modes */
- &= ~(ECHO /* disable echo input characters */
- | ECHONL /* disable echo new line */
- | ICANON /* disable erase, kill, werase, and rprnt special characters */
- | ISIG /* disable interrupt, quit, and suspend special characters */
- | IEXTEN); /* disable non-POSIX special characters */
+ &= ~OPOST; /* disable postprocess output char */
+ tty->termios->c_lflag /* line discipline modes */
+ &= ~(ECHO /* disable echo input characters */
+ | ECHONL /* disable echo new line */
+ | ICANON /* disable erase, kill, werase, and rprnt
+ special characters */
+ | ISIG /* disable interrupt, quit, and suspend
+ special characters */
+ | IEXTEN); /* disable non-POSIX special characters */
} /* CT_CYPHIDCOM: Application should handle this for device */
linechange = (priv->line_control != oldlines);
}
} /* cypress_set_termios */
-
+
/* returns amount of data still left in soft buffer */
static int cypress_chars_in_buffer(struct usb_serial_port *port)
{
spin_lock_irqsave(&priv->lock, flags);
priv->rx_flags = THROTTLED;
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
}
priv->rx_flags = 0;
spin_unlock_irqrestore(&priv->lock, flags);
+ if (!priv->comm_is_ok)
+ return;
+
if (actually_throttled) {
port->interrupt_in_urb->dev = port->serial->dev;
result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
+ if (result) {
+ dev_err(&port->dev, "%s - failed submitting read urb, "
+ "error %d\n", __FUNCTION__, result);
+ cypress_set_dead(port);
+ }
}
}
-static void cypress_read_int_callback(struct urb *urb, struct pt_regs *regs)
+static void cypress_read_int_callback(struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct cypress_private *priv = usb_get_serial_port_data(port);
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
unsigned long flags;
- char tty_flag = TTY_NORMAL;
+ char tty_flag = TTY_NORMAL;
int havedata = 0;
int bytes = 0;
int result;
dbg("%s - port %d", __FUNCTION__, port->number);
- if (urb->status) {
- dbg("%s - nonzero read status received: %d", __FUNCTION__, urb->status);
+ switch (urb->status) {
+ case 0: /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* precursor to disconnect so just go away */
+ return;
+ case -EPIPE:
+ usb_clear_halt(port->serial->dev,0x81);
+ break;
+ default:
+ /* something ugly is going on... */
+ dev_err(&urb->dev->dev,"%s - unexpected nonzero read status received: %d\n",
+ __FUNCTION__,urb->status);
+ cypress_set_dead(port);
return;
}
case 32:
/* This is for the CY7C64013... */
priv->current_status = data[0] & 0xF8;
- bytes = data[1]+2;
- i=2;
+ bytes = data[1] + 2;
+ i = 2;
if (bytes > 2)
havedata = 1;
break;
case 8:
/* This is for the CY7C63743... */
priv->current_status = data[0] & 0xF8;
- bytes = (data[0] & 0x07)+1;
- i=1;
+ bytes = (data[0] & 0x07) + 1;
+ i = 1;
if (bytes > 1)
havedata = 1;
break;
default:
- dbg("%s - wrong packet size - received %d bytes", __FUNCTION__, urb->actual_length);
+ dbg("%s - wrong packet size - received %d bytes",
+ __FUNCTION__, urb->actual_length);
spin_unlock_irqrestore(&priv->lock, flags);
goto continue_read;
}
spin_unlock_irqrestore(&priv->lock, flags);
- usb_serial_debug_data (debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+ usb_serial_debug_data (debug, &port->dev, __FUNCTION__,
+ urb->actual_length, data);
spin_lock_irqsave(&priv->lock, flags);
/* check to see if status has changed */
if (priv != NULL) {
if (priv->current_status != priv->prev_status) {
- priv->diff_status |= priv->current_status ^ priv->prev_status;
+ priv->diff_status |= priv->current_status ^
+ priv->prev_status;
wake_up_interruptible(&priv->delta_msr_wait);
priv->prev_status = priv->current_status;
}
}
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
- /* hangup, as defined in acm.c... this might be a bad place for it though */
- if (tty && !(tty->termios->c_cflag & CLOCAL) && !(priv->current_status & UART_CD)) {
+ /* hangup, as defined in acm.c... this might be a bad place for it
+ * though */
+ if (tty && !(tty->termios->c_cflag & CLOCAL) &&
+ !(priv->current_status & UART_CD)) {
dbg("%s - calling hangup", __FUNCTION__);
tty_hangup(tty);
goto continue_read;
}
- /* There is one error bit... I'm assuming it is a parity error indicator
- * as the generic firmware will set this bit to 1 if a parity error occurs.
- * I can not find reference to any other error events.
- *
- */
+ /* There is one error bit... I'm assuming it is a parity error
+ * indicator as the generic firmware will set this bit to 1 if a
+ * parity error occurs.
+ * I can not find reference to any other error events. */
spin_lock_irqsave(&priv->lock, flags);
if (priv->current_status & CYP_ERROR) {
spin_unlock_irqrestore(&priv->lock, flags);
/* process read if there is data other than line status */
if (tty && (bytes > i)) {
+ bytes = tty_buffer_request_room(tty, bytes);
for (; i < bytes ; ++i) {
- dbg("pushing byte number %d - %d - %c",i,data[i],data[i]);
- if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
- tty_flip_buffer_push(tty);
- }
+ dbg("pushing byte number %d - %d - %c", i, data[i],
+ data[i]);
tty_insert_flip_char(tty, data[i], tty_flag);
}
tty_flip_buffer_push(port->tty);
}
spin_lock_irqsave(&priv->lock, flags);
- priv->bytes_in += bytes; /* control and status byte(s) are also counted */
+ /* control and status byte(s) are also counted */
+ priv->bytes_in += bytes;
spin_unlock_irqrestore(&priv->lock, flags);
continue_read:
-
- /* Continue trying to always read... unless the port has closed. */
-
- if (port->open_count > 0) {
- usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev,
- usb_rcvintpipe(port->serial->dev, port->interrupt_in_endpointAddress),
- port->interrupt_in_urb->transfer_buffer,
- port->interrupt_in_urb->transfer_buffer_length,
- cypress_read_int_callback, port,
- interval);
- result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+
+ /* Continue trying to always read... unless the port has closed. */
+
+ if (port->open_count > 0 && priv->comm_is_ok) {
+ usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev,
+ usb_rcvintpipe(port->serial->dev,
+ port->interrupt_in_endpointAddress),
+ port->interrupt_in_urb->transfer_buffer,
+ port->interrupt_in_urb->transfer_buffer_length,
+ cypress_read_int_callback, port, priv->read_urb_interval);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+ if (result) {
+ dev_err(&urb->dev->dev, "%s - failed resubmitting "
+ "read urb, error %d\n", __FUNCTION__,
+ result);
+ cypress_set_dead(port);
+ }
}
-
+
return;
} /* cypress_read_int_callback */
-static void cypress_write_int_callback(struct urb *urb, struct pt_regs *regs)
+static void cypress_write_int_callback(struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct cypress_private *priv = usb_get_serial_port_data(port);
dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
priv->write_urb_in_use = 0;
return;
- case -EPIPE: /* no break needed */
+ case -EPIPE: /* no break needed; clear halt and resubmit */
+ if (!priv->comm_is_ok)
+ break;
usb_clear_halt(port->serial->dev, 0x02);
- default:
/* error in the urb, so we have to resubmit it */
- dbg("%s - Overflow in write", __FUNCTION__);
dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
port->interrupt_out_urb->transfer_buffer_length = 1;
port->interrupt_out_urb->dev = port->serial->dev;
result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed resubmitting write urb, error %d\n",
- __FUNCTION__, result);
- else
+ if (!result)
return;
+ dev_err(&urb->dev->dev, "%s - failed resubmitting write urb, error %d\n",
+ __FUNCTION__, result);
+ cypress_set_dead(port);
+ break;
+ default:
+ dev_err(&urb->dev->dev,"%s - unexpected nonzero write status received: %d\n",
+ __FUNCTION__,urb->status);
+ cypress_set_dead(port);
+ break;
}
priv->write_urb_in_use = 0;
if (size == 0)
return NULL;
- cb = (struct cypress_buf *)kmalloc(sizeof(struct cypress_buf), GFP_KERNEL);
+ cb = kmalloc(sizeof(struct cypress_buf), GFP_KERNEL);
if (cb == NULL)
return NULL;
retval = usb_serial_register(&cypress_hidcom_device);
if (retval)
goto failed_hidcom_register;
+ retval = usb_serial_register(&cypress_ca42v2_device);
+ if (retval)
+ goto failed_ca42v2_register;
retval = usb_register(&cypress_driver);
if (retval)
goto failed_usb_register;
info(DRIVER_DESC " " DRIVER_VERSION);
return 0;
+
failed_usb_register:
- usb_deregister(&cypress_driver);
-failed_hidcom_register:
+ usb_serial_deregister(&cypress_ca42v2_device);
+failed_ca42v2_register:
usb_serial_deregister(&cypress_hidcom_device);
-failed_em_register:
+failed_hidcom_register:
usb_serial_deregister(&cypress_earthmate_device);
-
+failed_em_register:
return retval;
}
usb_deregister (&cypress_driver);
usb_serial_deregister (&cypress_earthmate_device);
usb_serial_deregister (&cypress_hidcom_device);
+ usb_serial_deregister (&cypress_ca42v2_device);
}