/*****************************************************************************
* Driver tty interface functions
*****************************************************************************/
static int serial_open (struct tty_struct *tty, struct file * filp)
{
struct usb_serial *serial;
struct usb_serial_port *port;
int portNumber;
dbg(__FUNCTION__);
/* initialize the pointer incase something fails */
tty->driver_data = NULL;
/* get the serial object associated with this tty pointer */
serial = get_serial_by_minor (MINOR(tty->device));
if (serial_paranoia_check (serial, __FUNCTION__)) {
return -ENODEV;
}
/* set up our port structure making the tty driver remember our port object, and us it */
portNumber = MINOR(tty->device) - serial->minor;
port = &serial->port[portNumber];
tty->driver_data = port;
port->tty = tty;
/* pass on to the driver specific version of this function if it is available */
if (serial->type->open) {
return (serial->type->open(port, filp));
} else {
return (generic_open(port, filp));
}
}
int pvfsopen( pfile * pf,char * file_name , char *mode)
{
int ret = 0 ;
//file_object src;
memset(pf, 0 , sizeof(struct file_object_s));
resolve_filename(pf, file_name);
if ('r' == *mode)
{
ret=generic_open(pf, &credentials,0,0,NULL,OPEN_SRC);
}
if('w' == *mode)
{
ret=generic_open(pf, &credentials,0,0,NULL,OPEN_DEST);
}
if( ret < 0)
{
fprintf(stderr, "Could not open");
return (-1);
}
}
/*****************************************************************************
* Driver tty interface functions
*****************************************************************************/
static int serial_open (struct tty_struct *tty, struct file * filp)
{
struct usb_serial *serial;
struct usb_serial_port *port;
unsigned int portNumber;
int retval = 0;
dbg("%s", __FUNCTION__);
/* initialize the pointer incase something fails */
tty->driver_data = NULL;
/* get the serial object associated with this tty pointer */
serial = get_serial_by_minor (MINOR(tty->device));
if (serial_paranoia_check (serial, __FUNCTION__))
return -ENODEV;
/* set up our port structure making the tty driver remember our port object, and us it */
portNumber = MINOR(tty->device) - serial->minor;
port = &serial->port[portNumber];
tty->driver_data = port;
down (&port->sem);
port->tty = tty;
/* lock this module before we call it */
if (serial->type->owner)
__MOD_INC_USE_COUNT(serial->type->owner);
++port->open_count;
if (port->open_count == 1) {
/* only call the device specific open if this
* is the first time the port is opened */
if (serial->type->open)
retval = serial->type->open(port, filp);
else
retval = generic_open(port, filp);
}
if (retval) {
port->open_count = 0;
if (serial->type->owner)
__MOD_DEC_USE_COUNT(serial->type->owner);
}
up (&port->sem);
return retval;
}
