err.no Git - linux-2.6/blob - drivers/usb/serial/visor.c

   1 /*
   2  * USB HandSpring Visor, Palm m50x, and Sony Clie driver
   3  * (supports all of the Palm OS USB devices)
   4  *
   5  *      Copyright (C) 1999 - 2004
   6  *          Greg Kroah-Hartman (greg@kroah.com)
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  * See Documentation/usb/usb-serial.txt for more information on using this driver
  14  *
  15  * (06/03/2003) Judd Montgomery <judd at jpilot.org>
  16  *     Added support for module parameter options for untested/unknown
  17  *     devices.
  18  *
  19  * (03/09/2003) gkh
  20  *      Added support for the Sony Clie NZ90V device.  Thanks to Martin Brachtl
  21  *      <brachtl@redgrep.cz> for the information.
  22  *
  23  * (03/05/2003) gkh
  24  *      Think Treo support is now working.
  25  *
  26  * (04/03/2002) gkh
  27  *      Added support for the Sony OS 4.1 devices.  Thanks to Hiroyuki ARAKI
  28  *      <hiro@zob.ne.jp> for the information.
  29  *
  30  * (03/27/2002) gkh
  31  *      Removed assumptions that port->tty was always valid (is not true
  32  *      for usb serial console devices.)
  33  *
  34  * (03/23/2002) gkh
  35  *      Added support for the Palm i705 device, thanks to Thomas Riemer
  36  *      <tom@netmech.com> for the information.
  37  *
  38  * (03/21/2002) gkh
  39  *      Added support for the Palm m130 device, thanks to Udo Eisenbarth
  40  *      <udo.eisenbarth@web.de> for the information.
  41  *
  42  * (02/27/2002) gkh
  43  *      Reworked the urb handling logic.  We have no more pool, but dynamically
  44  *      allocate the urb and the transfer buffer on the fly.  In testing this
  45  *      does not incure any measurable overhead.  This also relies on the fact
  46  *      that we have proper reference counting logic for urbs.
  47  *
  48  * (02/21/2002) SilaS
  49  *  Added initial support for the Palm m515 devices.
  50  *
  51  * (02/14/2002) gkh
  52  *      Added support for the Clie S-360 device.
  53  *
  54  * (12/18/2001) gkh
  55  *      Added better Clie support for 3.5 devices.  Thanks to Geoffrey Levand
  56  *      for the patch.
  57  *
  58  * (11/11/2001) gkh
  59  *      Added support for the m125 devices, and added check to prevent oopses
  60  *      for Clié devices that lie about the number of ports they have.
  61  *
  62  * (08/30/2001) gkh
  63  *      Added support for the Clie devices, both the 3.5 and 4.0 os versions.
  64  *      Many thanks to Daniel Burke, and Bryan Payne for helping with this.
  65  *
  66  * (08/23/2001) gkh
  67  *      fixed a few potential bugs pointed out by Oliver Neukum.
  68  *
  69  * (05/30/2001) gkh
  70  *      switched from using spinlock to a semaphore, which fixes lots of problems.
  71  *
  72  * (05/28/2000) gkh
  73  *      Added initial support for the Palm m500 and Palm m505 devices.
  74  *
  75  * (04/08/2001) gb
  76  *      Identify version on module load.
  77  *
  78  * (01/21/2000) gkh
  79  *      Added write_room and chars_in_buffer, as they were previously using the
  80  *      generic driver versions which is all wrong now that we are using an urb
  81  *      pool.  Thanks to Wolfgang Grandegger for pointing this out to me.
  82  *      Removed count assignment in the write function, which was not needed anymore
  83  *      either.  Thanks to Al Borchers for pointing this out.
  84  *
  85  * (12/12/2000) gkh
  86  *      Moved MOD_DEC to end of visor_close to be nicer, as the final write
  87  *      message can sleep.
  88  *
  89  * (11/12/2000) gkh
  90  *      Fixed bug with data being dropped on the floor by forcing tty->low_latency
  91  *      to be on.  Hopefully this fixes the OHCI issue!
  92  *
  93  * (11/01/2000) Adam J. Richter
  94  *      usb_device_id table support
  95  *
  96  * (10/05/2000) gkh
  97  *      Fixed bug with urb->dev not being set properly, now that the usb
  98  *      core needs it.
  99  *
 100  * (09/11/2000) gkh
 101  *      Got rid of always calling kmalloc for every urb we wrote out to the
 102  *      device.
 103  *      Added visor_read_callback so we can keep track of bytes in and out for
 104  *      those people who like to know the speed of their device.
 105  *      Removed DEBUG #ifdefs with call to usb_serial_debug_data
 106  *
 107  * (09/06/2000) gkh
 108  *      Fixed oops in visor_exit.  Need to uncomment usb_unlink_urb call _after_
 109  *      the host controller drivers set urb->dev = NULL when the urb is finished.
 110  *
 111  * (08/28/2000) gkh
 112  *      Added locks for SMP safeness.
 113  *
 114  * (08/08/2000) gkh
 115  *      Fixed endian problem in visor_startup.
 116  *      Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
 117  *      than once.
 118  *
 119  * (07/23/2000) gkh
 120  *      Added pool of write urbs to speed up transfers to the visor.
 121  *
 122  * (07/19/2000) gkh
 123  *      Added module_init and module_exit functions to handle the fact that this
 124  *      driver is a loadable module now.
 125  *
 126  * (07/03/2000) gkh
 127  *      Added visor_set_ioctl and visor_set_termios functions (they don't do much
 128  *      of anything, but are good for debugging.)
 129  *
 130  * (06/25/2000) gkh
 131  *      Fixed bug in visor_unthrottle that should help with the disconnect in PPP
 132  *      bug that people have been reporting.
 133  *
 134  * (06/23/2000) gkh
 135  *      Cleaned up debugging statements in a quest to find UHCI timeout bug.
 136  *
 137  * (04/27/2000) Ryan VanderBijl
 138  *      Fixed memory leak in visor_close
 139  *
 140  * (03/26/2000) gkh
 141  *      Split driver up into device specific pieces.
 142  *
 143  */
 144
 145 #include <linux/config.h>
 146 #include <linux/kernel.h>
 147 #include <linux/errno.h>
 148 #include <linux/init.h>
 149 #include <linux/slab.h>
 150 #include <linux/tty.h>
 151 #include <linux/tty_driver.h>
 152 #include <linux/tty_flip.h>
 153 #include <linux/module.h>
 154 #include <linux/moduleparam.h>
 155 #include <linux/spinlock.h>
 156 #include <asm/uaccess.h>
 157 #include <linux/usb.h>
 158 #include "usb-serial.h"
 159 #include "visor.h"
 160
 161 /*
 162  * Version Information
 163  */
 164 #define DRIVER_VERSION "v2.1"
 165 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
 166 #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
 167
 168 /* function prototypes for a handspring visor */
 169 static int  visor_open          (struct usb_serial_port *port, struct file *filp);
 170 static void visor_close         (struct usb_serial_port *port, struct file *filp);
 171 static int  visor_write         (struct usb_serial_port *port, const unsigned char *buf, int count);
 172 static int  visor_write_room            (struct usb_serial_port *port);
 173 static int  visor_chars_in_buffer       (struct usb_serial_port *port);
 174 static void visor_throttle      (struct usb_serial_port *port);
 175 static void visor_unthrottle    (struct usb_serial_port *port);
 176 static int  visor_probe         (struct usb_serial *serial, const struct usb_device_id *id);
 177 static int  visor_calc_num_ports(struct usb_serial *serial);
 178 static void visor_shutdown      (struct usb_serial *serial);
 179 static int  visor_ioctl         (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
 180 static void visor_set_termios   (struct usb_serial_port *port, struct termios *old_termios);
 181 static void visor_write_bulk_callback   (struct urb *urb, struct pt_regs *regs);
 182 static void visor_read_bulk_callback    (struct urb *urb, struct pt_regs *regs);
 183 static void visor_read_int_callback     (struct urb *urb, struct pt_regs *regs);
 184 static int  clie_3_5_startup    (struct usb_serial *serial);
 185 static int  treo_attach         (struct usb_serial *serial);
 186 static int clie_5_attach (struct usb_serial *serial);
 187 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);
 188 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);
 189
 190 /* Parameters that may be passed into the module. */
 191 static int debug;
 192 static __u16 vendor;
 193 static __u16 product;
 194
 195 static struct usb_device_id id_table [] = {
 196         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
 197                 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
 198         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
 199                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 200         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
 201                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 202         { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
 203                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 204         { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
 205                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 206         { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
 207                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 208         { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
 209                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 210         { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
 211                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 212         { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
 213                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 214         { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
 215                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 216         { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
 217                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 218         { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
 219                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 220         { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
 221                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 222         { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID),
 223                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 224         { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
 225                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 226         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
 227                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 228         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
 229                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 230         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
 231                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 232         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
 233                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 234         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
 235                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 236         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
 237                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 238         { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
 239                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 240         { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
 241                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 242         { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
 243                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 244         { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
 245                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 246         { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
 247                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 248         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
 249                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 250         { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
 251                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 252         { },                                    /* optional parameter entry */
 253         { }                                     /* Terminating entry */
 254 };
 255
 256 static struct usb_device_id clie_id_5_table [] = {
 257         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
 258                 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 259         { },                                    /* optional parameter entry */
 260         { }                                     /* Terminating entry */
 261 };
 262
 263 static struct usb_device_id clie_id_3_5_table [] = {
 264         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
 265         { }                                     /* Terminating entry */
 266 };
 267
 268 static struct usb_device_id id_table_combined [] = {
 269         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
 270         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
 271         { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
 272         { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
 273         { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
 274         { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
 275         { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
 276         { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
 277         { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
 278         { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
 279         { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
 280         { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
 281         { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
 282         { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) },
 283         { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
 284         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
 285         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
 286         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
 287         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
 288         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
 289         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
 290         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
 291         { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
 292         { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
 293         { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
 294         { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
 295         { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
 296         { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
 297         { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
 298         { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
 299         { },                                    /* optional parameter entry */
 300         { }                                     /* Terminating entry */
 301 };
 302
 303 MODULE_DEVICE_TABLE (usb, id_table_combined);
 304
 305 static struct usb_driver visor_driver = {
 306         .owner =        THIS_MODULE,
 307         .name =         "visor",
 308         .probe =        usb_serial_probe,
 309         .disconnect =   usb_serial_disconnect,
 310         .id_table =     id_table_combined,
 311 };
 312
 313 /* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
 314 static struct usb_serial_driver handspring_device = {
 315         .driver = {
 316                 .owner =        THIS_MODULE,
 317         },
 318         .name =                 "Handspring Visor / Palm OS",
 319         .short_name =           "visor",
 320         .id_table =             id_table,
 321         .num_interrupt_in =     NUM_DONT_CARE,
 322         .num_bulk_in =          2,
 323         .num_bulk_out =         2,
 324         .num_ports =            2,
 325         .open =                 visor_open,
 326         .close =                visor_close,
 327         .throttle =             visor_throttle,
 328         .unthrottle =           visor_unthrottle,
 329         .attach =               treo_attach,
 330         .probe =                visor_probe,
 331         .calc_num_ports =       visor_calc_num_ports,
 332         .shutdown =             visor_shutdown,
 333         .ioctl =                visor_ioctl,
 334         .set_termios =          visor_set_termios,
 335         .write =                visor_write,
 336         .write_room =           visor_write_room,
 337         .chars_in_buffer =      visor_chars_in_buffer,
 338         .write_bulk_callback =  visor_write_bulk_callback,
 339         .read_bulk_callback =   visor_read_bulk_callback,
 340         .read_int_callback =    visor_read_int_callback,
 341 };
 342
 343 /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
 344 static struct usb_serial_driver clie_5_device = {
 345         .driver = {
 346                 .owner =        THIS_MODULE,
 347         },
 348         .name =                 "Sony Clie 5.0",
 349         .short_name =           "clie_5",
 350         .id_table =             clie_id_5_table,
 351         .num_interrupt_in =     NUM_DONT_CARE,
 352         .num_bulk_in =          2,
 353         .num_bulk_out =         2,
 354         .num_ports =            2,
 355         .open =                 visor_open,
 356         .close =                visor_close,
 357         .throttle =             visor_throttle,
 358         .unthrottle =           visor_unthrottle,
 359         .attach =               clie_5_attach,
 360         .probe =                visor_probe,
 361         .calc_num_ports =       visor_calc_num_ports,
 362         .shutdown =             visor_shutdown,
 363         .ioctl =                visor_ioctl,
 364         .set_termios =          visor_set_termios,
 365         .write =                visor_write,
 366         .write_room =           visor_write_room,
 367         .chars_in_buffer =      visor_chars_in_buffer,
 368         .write_bulk_callback =  visor_write_bulk_callback,
 369         .read_bulk_callback =   visor_read_bulk_callback,
 370         .read_int_callback =    visor_read_int_callback,
 371 };
 372
 373 /* device info for the Sony Clie OS version 3.5 */
 374 static struct usb_serial_driver clie_3_5_device = {
 375         .driver = {
 376                 .owner =        THIS_MODULE,
 377         },
 378         .name =                 "Sony Clie 3.5",
 379         .short_name =           "clie_3.5",
 380         .id_table =             clie_id_3_5_table,
 381         .num_interrupt_in =     0,
 382         .num_bulk_in =          1,
 383         .num_bulk_out =         1,
 384         .num_ports =            1,
 385         .open =                 visor_open,
 386         .close =                visor_close,
 387         .throttle =             visor_throttle,
 388         .unthrottle =           visor_unthrottle,
 389         .attach =               clie_3_5_startup,
 390         .ioctl =                visor_ioctl,
 391         .set_termios =          visor_set_termios,
 392         .write =                visor_write,
 393         .write_room =           visor_write_room,
 394         .chars_in_buffer =      visor_chars_in_buffer,
 395         .write_bulk_callback =  visor_write_bulk_callback,
 396         .read_bulk_callback =   visor_read_bulk_callback,
 397 };
 398
 399 struct visor_private {
 400         spinlock_t lock;
 401         int bytes_in;
 402         int bytes_out;
 403         int outstanding_urbs;
 404         int throttled;
 405 };
 406
 407 /* number of outstanding urbs to prevent userspace DoS from happening */
 408 #define URB_UPPER_LIMIT 42
 409
 410 static int stats;
 411
 412 /******************************************************************************
 413  * Handspring Visor specific driver functions
 414  ******************************************************************************/
 415 static int visor_open (struct usb_serial_port *port, struct file *filp)
 416 {
 417         struct usb_serial *serial = port->serial;
 418         struct visor_private *priv = usb_get_serial_port_data(port);
 419         unsigned long flags;
 420         int result = 0;
 421
 422         dbg("%s - port %d", __FUNCTION__, port->number);
 423
 424         if (!port->read_urb) {
 425                 /* this is needed for some brain dead Sony devices */
 426                 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
 427                 return -ENODEV;
 428         }
 429
 430         spin_lock_irqsave(&priv->lock, flags);
 431         priv->bytes_in = 0;
 432         priv->bytes_out = 0;
 433         priv->outstanding_urbs = 0;
 434         priv->throttled = 0;
 435         spin_unlock_irqrestore(&priv->lock, flags);
 436
 437         /*
 438          * Force low_latency on so that our tty_push actually forces the data
 439          * through, otherwise it is scheduled, and with high data rates (like
 440          * with OHCI) data can get lost.
 441          */
 442         if (port->tty)
 443                 port->tty->low_latency = 1;
 444
 445         /* Start reading from the device */
 446         usb_fill_bulk_urb (port->read_urb, serial->dev,
 447                            usb_rcvbulkpipe (serial->dev,
 448                                             port->bulk_in_endpointAddress),
 449                            port->read_urb->transfer_buffer,
 450                            port->read_urb->transfer_buffer_length,
 451                            visor_read_bulk_callback, port);
 452         result = usb_submit_urb(port->read_urb, GFP_KERNEL);
 453         if (result) {
 454                 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",
 455                         __FUNCTION__, result);
 456                 goto exit;
 457         }
 458
 459         if (port->interrupt_in_urb) {
 460                 dbg("%s - adding interrupt input for treo", __FUNCTION__);
 461                 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 462                 if (result)
 463                         dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",
 464                                 __FUNCTION__, result);
 465         }
 466 exit:
 467         return result;
 468 }
 469
 470
 471 static void visor_close (struct usb_serial_port *port, struct file * filp)
 472 {
 473         struct visor_private *priv = usb_get_serial_port_data(port);
 474         unsigned char *transfer_buffer;
 475
 476         dbg("%s - port %d", __FUNCTION__, port->number);
 477
 478         /* shutdown our urbs */
 479         usb_kill_urb(port->read_urb);
 480         if (port->interrupt_in_urb)
 481                 usb_kill_urb(port->interrupt_in_urb);
 482
 483         /* Try to send shutdown message, if the device is gone, this will just fail. */
 484         transfer_buffer =  kmalloc (0x12, GFP_KERNEL);
 485         if (transfer_buffer) {
 486                 usb_control_msg (port->serial->dev,
 487                                  usb_rcvctrlpipe(port->serial->dev, 0),
 488                                  VISOR_CLOSE_NOTIFICATION, 0xc2,
 489                                  0x0000, 0x0000,
 490                                  transfer_buffer, 0x12, 300);
 491                 kfree (transfer_buffer);
 492         }
 493
 494         if (stats)
 495                 dev_info(&port->dev, "Bytes In = %d  Bytes Out = %d\n",
 496                          priv->bytes_in, priv->bytes_out);
 497 }
 498
 499
 500 static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count)
 501 {
 502         struct visor_private *priv = usb_get_serial_port_data(port);
 503         struct usb_serial *serial = port->serial;
 504         struct urb *urb;
 505         unsigned char *buffer;
 506         unsigned long flags;
 507         int status;
 508
 509         dbg("%s - port %d", __FUNCTION__, port->number);
 510
 511         spin_lock_irqsave(&priv->lock, flags);
 512         if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
 513                 spin_unlock_irqrestore(&priv->lock, flags);
 514                 dbg("%s - write limit hit\n", __FUNCTION__);
 515                 return 0;
 516         }
 517         spin_unlock_irqrestore(&priv->lock, flags);
 518
 519         buffer = kmalloc (count, GFP_ATOMIC);
 520         if (!buffer) {
 521                 dev_err(&port->dev, "out of memory\n");
 522                 return -ENOMEM;
 523         }
 524
 525         urb = usb_alloc_urb(0, GFP_ATOMIC);
 526         if (!urb) {
 527                 dev_err(&port->dev, "no more free urbs\n");
 528                 kfree (buffer);
 529                 return -ENOMEM;
 530         }
 531
 532         memcpy (buffer, buf, count);
 533
 534         usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
 535
 536         usb_fill_bulk_urb (urb, serial->dev,
 537                            usb_sndbulkpipe (serial->dev,
 538                                             port->bulk_out_endpointAddress),
 539                            buffer, count,
 540                            visor_write_bulk_callback, port);
 541
 542         /* send it down the pipe */
 543         status = usb_submit_urb(urb, GFP_ATOMIC);
 544         if (status) {
 545                 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 546                         __FUNCTION__, status);
 547                 count = status;
 548                 kfree (buffer);
 549         } else {
 550                 spin_lock_irqsave(&priv->lock, flags);
 551                 ++priv->outstanding_urbs;
 552                 priv->bytes_out += count;
 553                 spin_unlock_irqrestore(&priv->lock, flags);
 554         }
 555
 556         /* we are done with this urb, so let the host driver
 557          * really free it when it is finished with it */
 558         usb_free_urb (urb);
 559
 560         return count;
 561 }
 562
 563
 564 static int visor_write_room (struct usb_serial_port *port)
 565 {
 566         dbg("%s - port %d", __FUNCTION__, port->number);
 567
 568         /*
 569          * We really can take anything the user throws at us
 570          * but let's pick a nice big number to tell the tty
 571          * layer that we have lots of free space
 572          */
 573         return 2048;
 574 }
 575
 576
 577 static int visor_chars_in_buffer (struct usb_serial_port *port)
 578 {
 579         dbg("%s - port %d", __FUNCTION__, port->number);
 580
 581         /*
 582          * We can't really account for how much data we
 583          * have sent out, but hasn't made it through to the
 584          * device, so just tell the tty layer that everything
 585          * is flushed.
 586          */
 587         return 0;
 588 }
 589
 590
 591 static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
 592 {
 593         struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
 594         struct visor_private *priv = usb_get_serial_port_data(port);
 595         unsigned long flags;
 596
 597         /* free up the transfer buffer, as usb_free_urb() does not do this */
 598         kfree (urb->transfer_buffer);
 599
 600         dbg("%s - port %d", __FUNCTION__, port->number);
 601
 602         if (urb->status)
 603                 dbg("%s - nonzero write bulk status received: %d",
 604                     __FUNCTION__, urb->status);
 605
 606         spin_lock_irqsave(&priv->lock, flags);
 607         --priv->outstanding_urbs;
 608         spin_unlock_irqrestore(&priv->lock, flags);
 609
 610         schedule_work(&port->work);
 611 }
 612
 613
 614 static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 615 {
 616         struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
 617         struct visor_private *priv = usb_get_serial_port_data(port);
 618         unsigned char *data = urb->transfer_buffer;
 619         struct tty_struct *tty;
 620         unsigned long flags;
 621         int i;
 622         int throttled;
 623         int result;
 624
 625         dbg("%s - port %d", __FUNCTION__, port->number);
 626
 627         if (urb->status) {
 628                 dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
 629                 return;
 630         }
 631
 632         usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
 633
 634         tty = port->tty;
 635         if (tty && urb->actual_length) {
 636                 for (i = 0; i < urb->actual_length ; ++i) {
 637                         /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
 638                         if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
 639                                 tty_flip_buffer_push(tty);
 640                         }
 641                         /* this doesn't actually push the data through unless tty->low_latency is set */
 642                         tty_insert_flip_char(tty, data[i], 0);
 643                 }
 644                 tty_flip_buffer_push(tty);
 645         }
 646         spin_lock_irqsave(&priv->lock, flags);
 647         priv->bytes_in += urb->actual_length;
 648         throttled = priv->throttled;
 649         spin_unlock_irqrestore(&priv->lock, flags);
 650
 651         /* Continue trying to always read if we should */
 652         if (!throttled) {
 653                 usb_fill_bulk_urb (port->read_urb, port->serial->dev,
 654                                    usb_rcvbulkpipe(port->serial->dev,
 655                                                    port->bulk_in_endpointAddress),
 656                                    port->read_urb->transfer_buffer,
 657                                    port->read_urb->transfer_buffer_length,
 658                                    visor_read_bulk_callback, port);
 659                 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 660                 if (result)
 661                         dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
 662         }
 663         return;
 664 }
 665
 666 static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
 667 {
 668         struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
 669         int result;
 670
 671         switch (urb->status) {
 672         case 0:
 673                 /* success */
 674                 break;
 675         case -ECONNRESET:
 676         case -ENOENT:
 677         case -ESHUTDOWN:
 678                 /* this urb is terminated, clean up */
 679                 dbg("%s - urb shutting down with status: %d",
 680                     __FUNCTION__, urb->status);
 681                 return;
 682         default:
 683                 dbg("%s - nonzero urb status received: %d",
 684                     __FUNCTION__, urb->status);
 685                 goto exit;
 686         }
 687
 688         /*
 689          * This information is still unknown what it can be used for.
 690          * If anyone has an idea, please let the author know...
 691          *
 692          * Rumor has it this endpoint is used to notify when data
 693          * is ready to be read from the bulk ones.
 694          */
 695         usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
 696                               urb->actual_length, urb->transfer_buffer);
 697
 698 exit:
 699         result = usb_submit_urb (urb, GFP_ATOMIC);
 700         if (result)
 701                 dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n",
 702                         __FUNCTION__, result);
 703 }
 704
 705 static void visor_throttle (struct usb_serial_port *port)
 706 {
 707         struct visor_private *priv = usb_get_serial_port_data(port);
 708         unsigned long flags;
 709
 710         dbg("%s - port %d", __FUNCTION__, port->number);
 711         spin_lock_irqsave(&priv->lock, flags);
 712         priv->throttled = 1;
 713         spin_unlock_irqrestore(&priv->lock, flags);
 714 }
 715
 716
 717 static void visor_unthrottle (struct usb_serial_port *port)
 718 {
 719         struct visor_private *priv = usb_get_serial_port_data(port);
 720         unsigned long flags;
 721         int result;
 722
 723         dbg("%s - port %d", __FUNCTION__, port->number);
 724         spin_lock_irqsave(&priv->lock, flags);
 725         priv->throttled = 0;
 726         spin_unlock_irqrestore(&priv->lock, flags);
 727
 728         port->read_urb->dev = port->serial->dev;
 729         result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 730         if (result)
 731                 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
 732 }
 733
 734 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id)
 735 {
 736         struct device *dev = &serial->dev->dev;
 737         struct visor_connection_info *connection_info;
 738         unsigned char *transfer_buffer;
 739         char *string;
 740         int retval = 0;
 741         int i;
 742         int num_ports = 0;
 743
 744         dbg("%s", __FUNCTION__);
 745
 746         transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
 747         if (!transfer_buffer) {
 748                 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
 749                         sizeof(*connection_info));
 750                 return -ENOMEM;
 751         }
 752
 753         /* send a get connection info request */
 754         retval = usb_control_msg (serial->dev,
 755                                   usb_rcvctrlpipe(serial->dev, 0),
 756                                   VISOR_GET_CONNECTION_INFORMATION,
 757                                   0xc2, 0x0000, 0x0000, transfer_buffer,
 758                                   sizeof(*connection_info), 300);
 759         if (retval < 0) {
 760                 dev_err(dev, "%s - error %d getting connection information\n",
 761                         __FUNCTION__, retval);
 762                 goto exit;
 763         }
 764
 765         if (retval == sizeof(*connection_info)) {
 766                 connection_info = (struct visor_connection_info *)transfer_buffer;
 767
 768                 num_ports = le16_to_cpu(connection_info->num_ports);
 769                 for (i = 0; i < num_ports; ++i) {
 770                         switch (connection_info->connections[i].port_function_id) {
 771                                 case VISOR_FUNCTION_GENERIC:
 772                                         string = "Generic";
 773                                         break;
 774                                 case VISOR_FUNCTION_DEBUGGER:
 775                                         string = "Debugger";
 776                                         break;
 777                                 case VISOR_FUNCTION_HOTSYNC:
 778                                         string = "HotSync";
 779                                         break;
 780                                 case VISOR_FUNCTION_CONSOLE:
 781                                         string = "Console";
 782                                         break;
 783                                 case VISOR_FUNCTION_REMOTE_FILE_SYS:
 784                                         string = "Remote File System";
 785                                         break;
 786                                 default:
 787                                         string = "unknown";
 788                                         break;
 789                         }
 790                         dev_info(dev, "%s: port %d, is for %s use\n",
 791                                 serial->type->name,
 792                                 connection_info->connections[i].port, string);
 793                 }
 794         }
 795         /*
 796         * Handle devices that report invalid stuff here.
 797         */
 798         if (num_ports == 0 || num_ports > 2) {
 799                 dev_warn (dev, "%s: No valid connect info available\n",
 800                         serial->type->name);
 801                 num_ports = 2;
 802         }
 803
 804         dev_info(dev, "%s: Number of ports: %d\n", serial->type->name,
 805                 num_ports);
 806
 807         /*
 808          * save off our num_ports info so that we can use it in the
 809          * calc_num_ports callback
 810          */
 811         usb_set_serial_data(serial, (void *)(long)num_ports);
 812
 813         /* ask for the number of bytes available, but ignore the response as it is broken */
 814         retval = usb_control_msg (serial->dev,
 815                                   usb_rcvctrlpipe(serial->dev, 0),
 816                                   VISOR_REQUEST_BYTES_AVAILABLE,
 817                                   0xc2, 0x0000, 0x0005, transfer_buffer,
 818                                   0x02, 300);
 819         if (retval < 0)
 820                 dev_err(dev, "%s - error %d getting bytes available request\n",
 821                         __FUNCTION__, retval);
 822         retval = 0;
 823
 824 exit:
 825         kfree (transfer_buffer);
 826
 827         return retval;
 828 }
 829
 830 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id)
 831 {
 832         struct device *dev = &serial->dev->dev;
 833         struct palm_ext_connection_info *connection_info;
 834         unsigned char *transfer_buffer;
 835         int retval;
 836
 837         dbg("%s", __FUNCTION__);
 838
 839         transfer_buffer =  kmalloc (sizeof (*connection_info), GFP_KERNEL);
 840         if (!transfer_buffer) {
 841                 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
 842                         sizeof(*connection_info));
 843                 return -ENOMEM;
 844         }
 845
 846         retval = usb_control_msg (serial->dev,
 847                                   usb_rcvctrlpipe(serial->dev, 0),
 848                                   PALM_GET_EXT_CONNECTION_INFORMATION,
 849                                   0xc2, 0x0000, 0x0000, transfer_buffer,
 850                                   sizeof (*connection_info), 300);
 851         if (retval < 0)
 852                 dev_err(dev, "%s - error %d getting connection info\n",
 853                         __FUNCTION__, retval);
 854         else
 855                 usb_serial_debug_data(debug, &serial->dev->dev, __FUNCTION__,
 856                                       retval, transfer_buffer);
 857
 858         kfree (transfer_buffer);
 859         return 0;
 860 }
 861
 862
 863 static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id)
 864 {
 865         int retval = 0;
 866         int (*startup) (struct usb_serial *serial, const struct usb_device_id *id);
 867
 868         dbg("%s", __FUNCTION__);
 869
 870         if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
 871                 err("active config #%d != 1 ??",
 872                         serial->dev->actconfig->desc.bConfigurationValue);
 873                 return -ENODEV;
 874         }
 875
 876         if (id->driver_info) {
 877                 startup = (void *)id->driver_info;
 878                 retval = startup(serial, id);
 879         }
 880
 881         return retval;
 882 }
 883
 884 static int visor_calc_num_ports (struct usb_serial *serial)
 885 {
 886         int num_ports = (int)(long)(usb_get_serial_data(serial));
 887
 888         if (num_ports)
 889                 usb_set_serial_data(serial, NULL);
 890
 891         return num_ports;
 892 }
 893
 894 static int generic_startup(struct usb_serial *serial)
 895 {
 896         struct visor_private *priv;
 897         int i;
 898
 899         for (i = 0; i < serial->num_ports; ++i) {
 900                 priv = kmalloc (sizeof(*priv), GFP_KERNEL);
 901                 if (!priv)
 902                         return -ENOMEM;
 903                 memset (priv, 0x00, sizeof(*priv));
 904                 spin_lock_init(&priv->lock);
 905                 usb_set_serial_port_data(serial->port[i], priv);
 906         }
 907         return 0;
 908 }
 909
 910 static int clie_3_5_startup (struct usb_serial *serial)
 911 {
 912         struct device *dev = &serial->dev->dev;
 913         int result;
 914         u8 data;
 915
 916         dbg("%s", __FUNCTION__);
 917
 918         /*
 919          * Note that PEG-300 series devices expect the following two calls.
 920          */
 921
 922         /* get the config number */
 923         result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 924                                   USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
 925                                   0, 0, &data, 1, 3000);
 926         if (result < 0) {
 927                 dev_err(dev, "%s: get config number failed: %d\n", __FUNCTION__, result);
 928                 return result;
 929         }
 930         if (result != 1) {
 931                 dev_err(dev, "%s: get config number bad return length: %d\n", __FUNCTION__, result);
 932                 return -EIO;
 933         }
 934
 935         /* get the interface number */
 936         result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 937                                   USB_REQ_GET_INTERFACE,
 938                                   USB_DIR_IN | USB_RECIP_INTERFACE,
 939                                   0, 0, &data, 1, 3000);
 940         if (result < 0) {
 941                 dev_err(dev, "%s: get interface number failed: %d\n", __FUNCTION__, result);
 942                 return result;
 943         }
 944         if (result != 1) {
 945                 dev_err(dev, "%s: get interface number bad return length: %d\n", __FUNCTION__, result);
 946                 return -EIO;
 947         }
 948
 949         return generic_startup(serial);
 950 }
 951
 952 static int treo_attach (struct usb_serial *serial)
 953 {
 954         struct usb_serial_port *swap_port;
 955
 956         /* Only do this endpoint hack for the Handspring devices with
 957          * interrupt in endpoints, which for now are the Treo devices. */
 958         if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) ||
 959               (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) ||
 960             (serial->num_interrupt_in == 0))
 961                 goto generic_startup;
 962
 963         dbg("%s", __FUNCTION__);
 964
 965         /*
 966         * It appears that Treos and Kyoceras want to use the
 967         * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
 968         * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
 969         * Note that swapping the bulk out endpoints would break lots of
 970         * apps that want to communicate on the second port.
 971         */
 972 #define COPY_PORT(dest, src)                                            \
 973         dest->read_urb = src->read_urb;                                 \
 974         dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;   \
 975         dest->bulk_in_buffer = src->bulk_in_buffer;                     \
 976         dest->interrupt_in_urb = src->interrupt_in_urb;                 \
 977         dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress; \
 978         dest->interrupt_in_buffer = src->interrupt_in_buffer;
 979
 980         swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
 981         if (!swap_port)
 982                 return -ENOMEM;
 983         COPY_PORT(swap_port, serial->port[0]);
 984         COPY_PORT(serial->port[0], serial->port[1]);
 985         COPY_PORT(serial->port[1], swap_port);
 986         kfree(swap_port);
 987
 988 generic_startup:
 989         return generic_startup(serial);
 990 }
 991
 992 static int clie_5_attach (struct usb_serial *serial)
 993 {
 994         dbg("%s", __FUNCTION__);
 995
 996         /* TH55 registers 2 ports.
 997            Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0
 998            Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1
 999
1000            Lets do a quick and dirty mapping
1001          */
1002
1003         /* some sanity check */
1004         if (serial->num_ports < 2)
1005                 return -1;
1006
1007         /* port 0 now uses the modified endpoint Address */
1008         serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress;
1009
1010         return generic_startup(serial);
1011 }
1012
1013 static void visor_shutdown (struct usb_serial *serial)
1014 {
1015         dbg("%s", __FUNCTION__);
1016 }
1017
1018 static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
1019 {
1020         dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
1021
1022         return -ENOIOCTLCMD;
1023 }
1024
1025
1026 /* This function is all nice and good, but we don't change anything based on it :) */
1027 static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios)
1028 {
1029         unsigned int cflag;
1030
1031         dbg("%s - port %d", __FUNCTION__, port->number);
1032
1033         if ((!port->tty) || (!port->tty->termios)) {
1034                 dbg("%s - no tty structures", __FUNCTION__);
1035                 return;
1036         }
1037
1038         cflag = port->tty->termios->c_cflag;
1039         /* check that they really want us to change something */
1040         if (old_termios) {
1041                 if ((cflag == old_termios->c_cflag) &&
1042                     (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
1043                         dbg("%s - nothing to change...", __FUNCTION__);
1044                         return;
1045                 }
1046         }
1047
1048         /* get the byte size */
1049         switch (cflag & CSIZE) {
1050                 case CS5:       dbg("%s - data bits = 5", __FUNCTION__);   break;
1051                 case CS6:       dbg("%s - data bits = 6", __FUNCTION__);   break;
1052                 case CS7:       dbg("%s - data bits = 7", __FUNCTION__);   break;
1053                 default:
1054                 case CS8:       dbg("%s - data bits = 8", __FUNCTION__);   break;
1055         }
1056
1057         /* determine the parity */
1058         if (cflag & PARENB)
1059                 if (cflag & PARODD)
1060                         dbg("%s - parity = odd", __FUNCTION__);
1061                 else
1062                         dbg("%s - parity = even", __FUNCTION__);
1063         else
1064                 dbg("%s - parity = none", __FUNCTION__);
1065
1066         /* figure out the stop bits requested */
1067         if (cflag & CSTOPB)
1068                 dbg("%s - stop bits = 2", __FUNCTION__);
1069         else
1070                 dbg("%s - stop bits = 1", __FUNCTION__);
1071
1072
1073         /* figure out the flow control settings */
1074         if (cflag & CRTSCTS)
1075                 dbg("%s - RTS/CTS is enabled", __FUNCTION__);
1076         else
1077                 dbg("%s - RTS/CTS is disabled", __FUNCTION__);
1078
1079         /* determine software flow control */
1080         if (I_IXOFF(port->tty))
1081                 dbg("%s - XON/XOFF is enabled, XON = %2x, XOFF = %2x",
1082                     __FUNCTION__, START_CHAR(port->tty), STOP_CHAR(port->tty));
1083         else
1084                 dbg("%s - XON/XOFF is disabled", __FUNCTION__);
1085
1086         /* get the baud rate wanted */
1087         dbg("%s - baud rate = %d", __FUNCTION__, tty_get_baud_rate(port->tty));
1088
1089         return;
1090 }
1091
1092
1093 static int __init visor_init (void)
1094 {
1095         int i, retval;
1096         /* Only if parameters were passed to us */
1097         if ((vendor>0) && (product>0)) {
1098                 struct usb_device_id usb_dev_temp[]=
1099                         {{USB_DEVICE(vendor, product),
1100                         .driver_info = (kernel_ulong_t)&palm_os_4_probe }};
1101
1102                 /* Find the last entry in id_table */
1103                 for (i=0; ; i++) {
1104                         if (id_table[i].idVendor==0) {
1105                                 id_table[i] = usb_dev_temp[0];
1106                                 break;
1107                         }
1108                 }
1109                 /* Find the last entry in id_table_combined */
1110                 for (i=0; ; i++) {
1111                         if (id_table_combined[i].idVendor==0) {
1112                                 id_table_combined[i] = usb_dev_temp[0];
1113                                 break;
1114                         }
1115                 }
1116                 info("Untested USB device specified at time of module insertion");
1117                 info("Warning: This is not guaranteed to work");
1118                 info("Using a newer kernel is preferred to this method");
1119                 info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x",
1120                         vendor, product);
1121         }
1122         retval = usb_serial_register(&handspring_device);
1123         if (retval)
1124                 goto failed_handspring_register;
1125         retval = usb_serial_register(&clie_3_5_device);
1126         if (retval)
1127                 goto failed_clie_3_5_register;
1128         retval = usb_serial_register(&clie_5_device);
1129         if (retval)
1130                 goto failed_clie_5_register;
1131         retval = usb_register(&visor_driver);
1132         if (retval)
1133                 goto failed_usb_register;
1134         info(DRIVER_DESC " " DRIVER_VERSION);
1135
1136         return 0;
1137 failed_usb_register:
1138         usb_serial_deregister(&clie_5_device);
1139 failed_clie_5_register:
1140         usb_serial_deregister(&clie_3_5_device);
1141 failed_clie_3_5_register:
1142         usb_serial_deregister(&handspring_device);
1143 failed_handspring_register:
1144         return retval;
1145 }
1146
1147
1148 static void __exit visor_exit (void)
1149 {
1150         usb_deregister (&visor_driver);
1151         usb_serial_deregister (&handspring_device);
1152         usb_serial_deregister (&clie_3_5_device);
1153         usb_serial_deregister (&clie_5_device);
1154 }
1155
1156
1157 module_init(visor_init);
1158 module_exit(visor_exit);
1159
1160 MODULE_AUTHOR( DRIVER_AUTHOR );
1161 MODULE_DESCRIPTION( DRIVER_DESC );
1162 MODULE_LICENSE("GPL");
1163
1164 module_param(debug, bool, S_IRUGO | S_IWUSR);
1165 MODULE_PARM_DESC(debug, "Debug enabled or not");
1166 module_param(stats, bool, S_IRUGO | S_IWUSR);
1167 MODULE_PARM_DESC(stats, "Enables statistics or not");
1168
1169 module_param(vendor, ushort, 0);
1170 MODULE_PARM_DESC(vendor, "User specified vendor ID");
1171 module_param(product, ushort, 0);
1172 MODULE_PARM_DESC(product, "User specified product ID");
1173