linux/drivers/usb/serial/visor.c
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   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
   9 *      modify it under the terms of the GNU General Public License version
  10 *      2 as published by the Free Software Foundation.
  11 *
  12 * See Documentation/usb/usb-serial.txt for more information on using this
  13 * driver
  14 *
  15 */
  16
  17#include <linux/kernel.h>
  18#include <linux/errno.h>
  19#include <linux/init.h>
  20#include <linux/slab.h>
  21#include <linux/tty.h>
  22#include <linux/tty_driver.h>
  23#include <linux/tty_flip.h>
  24#include <linux/module.h>
  25#include <linux/moduleparam.h>
  26#include <linux/spinlock.h>
  27#include <linux/uaccess.h>
  28#include <linux/usb.h>
  29#include <linux/usb/serial.h>
  30#include <linux/usb/cdc.h>
  31#include "visor.h"
  32
  33/*
  34 * Version Information
  35 */
  36#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
  37#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
  38
  39/* function prototypes for a handspring visor */
  40static int  visor_open(struct tty_struct *tty, struct usb_serial_port *port);
  41static void visor_close(struct usb_serial_port *port);
  42static int  visor_probe(struct usb_serial *serial,
  43                                        const struct usb_device_id *id);
  44static int  visor_calc_num_ports(struct usb_serial *serial);
  45static void visor_read_int_callback(struct urb *urb);
  46static int  clie_3_5_startup(struct usb_serial *serial);
  47static int  treo_attach(struct usb_serial *serial);
  48static int clie_5_attach(struct usb_serial *serial);
  49static int palm_os_3_probe(struct usb_serial *serial,
  50                                        const struct usb_device_id *id);
  51static int palm_os_4_probe(struct usb_serial *serial,
  52                                        const struct usb_device_id *id);
  53
  54/* Parameters that may be passed into the module. */
  55static int debug;
  56static __u16 vendor;
  57static __u16 product;
  58
  59static struct usb_device_id id_table [] = {
  60        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
  61                .driver_info = (kernel_ulong_t)&palm_os_3_probe },
  62        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
  63                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  64        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
  65                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  66        { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
  67                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  68        { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
  69                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  70        { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
  71                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  72        { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
  73                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  74        { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
  75                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  76        { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
  77                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  78        { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
  79                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  80        { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
  81                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  82        { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
  83                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  84        { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
  85                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  86        { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
  87                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  88        { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
  89                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  90        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
  91                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  92        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
  93                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  94        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
  95                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  96        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
  97                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
  98        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
  99                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 100        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
 101                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 102        { USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
 103                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 104        { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
 105                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 106        { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
 107                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 108        { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
 109                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 110        { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
 111                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 112        { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
 113                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 114        { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
 115                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 116        { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
 117                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 118        { },                                    /* optional parameter entry */
 119        { }                                     /* Terminating entry */
 120};
 121
 122static struct usb_device_id clie_id_5_table [] = {
 123        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
 124                .driver_info = (kernel_ulong_t)&palm_os_4_probe },
 125        { },                                    /* optional parameter entry */
 126        { }                                     /* Terminating entry */
 127};
 128
 129static struct usb_device_id clie_id_3_5_table [] = {
 130        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
 131        { }                                     /* Terminating entry */
 132};
 133
 134static struct usb_device_id id_table_combined [] = {
 135        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
 136        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
 137        { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
 138        { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
 139        { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
 140        { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
 141        { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
 142        { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
 143        { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
 144        { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
 145        { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
 146        { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
 147        { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
 148        { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
 149        { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
 150        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
 151        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
 152        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
 153        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
 154        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
 155        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
 156        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
 157        { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
 158        { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
 159        { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
 160        { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
 161        { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
 162        { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
 163        { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
 164        { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
 165        { },                                    /* optional parameter entry */
 166        { }                                     /* Terminating entry */
 167};
 168
 169MODULE_DEVICE_TABLE(usb, id_table_combined);
 170
 171static struct usb_driver visor_driver = {
 172        .name =         "visor",
 173        .probe =        usb_serial_probe,
 174        .disconnect =   usb_serial_disconnect,
 175        .id_table =     id_table_combined,
 176        .no_dynamic_id =        1,
 177};
 178
 179/* All of the device info needed for the Handspring Visor,
 180   and Palm 4.0 devices */
 181static struct usb_serial_driver handspring_device = {
 182        .driver = {
 183                .owner =        THIS_MODULE,
 184                .name =         "visor",
 185        },
 186        .description =          "Handspring Visor / Palm OS",
 187        .usb_driver =           &visor_driver,
 188        .id_table =             id_table,
 189        .num_ports =            2,
 190        .bulk_out_size =        256,
 191        .open =                 visor_open,
 192        .close =                visor_close,
 193        .throttle =             usb_serial_generic_throttle,
 194        .unthrottle =           usb_serial_generic_unthrottle,
 195        .attach =               treo_attach,
 196        .probe =                visor_probe,
 197        .calc_num_ports =       visor_calc_num_ports,
 198        .read_int_callback =    visor_read_int_callback,
 199};
 200
 201/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
 202static struct usb_serial_driver clie_5_device = {
 203        .driver = {
 204                .owner =        THIS_MODULE,
 205                .name =         "clie_5",
 206        },
 207        .description =          "Sony Clie 5.0",
 208        .usb_driver =           &visor_driver,
 209        .id_table =             clie_id_5_table,
 210        .num_ports =            2,
 211        .bulk_out_size =        256,
 212        .open =                 visor_open,
 213        .close =                visor_close,
 214        .throttle =             usb_serial_generic_throttle,
 215        .unthrottle =           usb_serial_generic_unthrottle,
 216        .attach =               clie_5_attach,
 217        .probe =                visor_probe,
 218        .calc_num_ports =       visor_calc_num_ports,
 219        .read_int_callback =    visor_read_int_callback,
 220};
 221
 222/* device info for the Sony Clie OS version 3.5 */
 223static struct usb_serial_driver clie_3_5_device = {
 224        .driver = {
 225                .owner =        THIS_MODULE,
 226                .name =         "clie_3.5",
 227        },
 228        .description =          "Sony Clie 3.5",
 229        .usb_driver =           &visor_driver,
 230        .id_table =             clie_id_3_5_table,
 231        .num_ports =            1,
 232        .bulk_out_size =        256,
 233        .open =                 visor_open,
 234        .close =                visor_close,
 235        .throttle =             usb_serial_generic_throttle,
 236        .unthrottle =           usb_serial_generic_unthrottle,
 237        .attach =               clie_3_5_startup,
 238};
 239
 240/******************************************************************************
 241 * Handspring Visor specific driver functions
 242 ******************************************************************************/
 243static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
 244{
 245        int result = 0;
 246
 247        dbg("%s - port %d", __func__, port->number);
 248
 249        if (!port->read_urb) {
 250                /* this is needed for some brain dead Sony devices */
 251                dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
 252                return -ENODEV;
 253        }
 254
 255        /* Start reading from the device */
 256        result = usb_serial_generic_open(tty, port);
 257        if (result)
 258                goto exit;
 259
 260        if (port->interrupt_in_urb) {
 261                dbg("%s - adding interrupt input for treo", __func__);
 262                result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 263                if (result)
 264                        dev_err(&port->dev,
 265                            "%s - failed submitting interrupt urb, error %d\n",
 266                                                        __func__, result);
 267        }
 268exit:
 269        return result;
 270}
 271
 272
 273static void visor_close(struct usb_serial_port *port)
 274{
 275        unsigned char *transfer_buffer;
 276
 277        dbg("%s - port %d", __func__, port->number);
 278
 279        /* shutdown our urbs */
 280        usb_serial_generic_close(port);
 281        usb_kill_urb(port->interrupt_in_urb);
 282
 283        mutex_lock(&port->serial->disc_mutex);
 284        if (!port->serial->disconnected) {
 285                /* Try to send shutdown message, unless the device is gone */
 286                transfer_buffer =  kmalloc(0x12, GFP_KERNEL);
 287                if (transfer_buffer) {
 288                        usb_control_msg(port->serial->dev,
 289                                         usb_rcvctrlpipe(port->serial->dev, 0),
 290                                         VISOR_CLOSE_NOTIFICATION, 0xc2,
 291                                         0x0000, 0x0000,
 292                                         transfer_buffer, 0x12, 300);
 293                        kfree(transfer_buffer);
 294                }
 295        }
 296        mutex_unlock(&port->serial->disc_mutex);
 297}
 298
 299static void visor_read_int_callback(struct urb *urb)
 300{
 301        struct usb_serial_port *port = urb->context;
 302        int status = urb->status;
 303        int result;
 304
 305        switch (status) {
 306        case 0:
 307                /* success */
 308                break;
 309        case -ECONNRESET:
 310        case -ENOENT:
 311        case -ESHUTDOWN:
 312                /* this urb is terminated, clean up */
 313                dbg("%s - urb shutting down with status: %d",
 314                    __func__, status);
 315                return;
 316        default:
 317                dbg("%s - nonzero urb status received: %d",
 318                    __func__, status);
 319                goto exit;
 320        }
 321
 322        /*
 323         * This information is still unknown what it can be used for.
 324         * If anyone has an idea, please let the author know...
 325         *
 326         * Rumor has it this endpoint is used to notify when data
 327         * is ready to be read from the bulk ones.
 328         */
 329        usb_serial_debug_data(debug, &port->dev, __func__,
 330                              urb->actual_length, urb->transfer_buffer);
 331
 332exit:
 333        result = usb_submit_urb(urb, GFP_ATOMIC);
 334        if (result)
 335                dev_err(&urb->dev->dev,
 336                                "%s - Error %d submitting interrupt urb\n",
 337                                                        __func__, result);
 338}
 339
 340static int palm_os_3_probe(struct usb_serial *serial,
 341                                                const struct usb_device_id *id)
 342{
 343        struct device *dev = &serial->dev->dev;
 344        struct visor_connection_info *connection_info;
 345        unsigned char *transfer_buffer;
 346        char *string;
 347        int retval = 0;
 348        int i;
 349        int num_ports = 0;
 350
 351        dbg("%s", __func__);
 352
 353        transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
 354        if (!transfer_buffer) {
 355                dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
 356                        sizeof(*connection_info));
 357                return -ENOMEM;
 358        }
 359
 360        /* send a get connection info request */
 361        retval = usb_control_msg(serial->dev,
 362                                  usb_rcvctrlpipe(serial->dev, 0),
 363                                  VISOR_GET_CONNECTION_INFORMATION,
 364                                  0xc2, 0x0000, 0x0000, transfer_buffer,
 365                                  sizeof(*connection_info), 300);
 366        if (retval < 0) {
 367                dev_err(dev, "%s - error %d getting connection information\n",
 368                        __func__, retval);
 369                goto exit;
 370        }
 371
 372        if (retval == sizeof(*connection_info)) {
 373                        connection_info = (struct visor_connection_info *)
 374                                                        transfer_buffer;
 375
 376                num_ports = le16_to_cpu(connection_info->num_ports);
 377                for (i = 0; i < num_ports; ++i) {
 378                        switch (
 379                           connection_info->connections[i].port_function_id) {
 380                        case VISOR_FUNCTION_GENERIC:
 381                                string = "Generic";
 382                                break;
 383                        case VISOR_FUNCTION_DEBUGGER:
 384                                string = "Debugger";
 385                                break;
 386                        case VISOR_FUNCTION_HOTSYNC:
 387                                string = "HotSync";
 388                                break;
 389                        case VISOR_FUNCTION_CONSOLE:
 390                                string = "Console";
 391                                break;
 392                        case VISOR_FUNCTION_REMOTE_FILE_SYS:
 393                                string = "Remote File System";
 394                                break;
 395                        default:
 396                                string = "unknown";
 397                                break;
 398                        }
 399                        dev_info(dev, "%s: port %d, is for %s use\n",
 400                                serial->type->description,
 401                                connection_info->connections[i].port, string);
 402                }
 403        }
 404        /*
 405        * Handle devices that report invalid stuff here.
 406        */
 407        if (num_ports == 0 || num_ports > 2) {
 408                dev_warn(dev, "%s: No valid connect info available\n",
 409                        serial->type->description);
 410                num_ports = 2;
 411        }
 412
 413        dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
 414                num_ports);
 415
 416        /*
 417         * save off our num_ports info so that we can use it in the
 418         * calc_num_ports callback
 419         */
 420        usb_set_serial_data(serial, (void *)(long)num_ports);
 421
 422        /* ask for the number of bytes available, but ignore the
 423           response as it is broken */
 424        retval = usb_control_msg(serial->dev,
 425                                  usb_rcvctrlpipe(serial->dev, 0),
 426                                  VISOR_REQUEST_BYTES_AVAILABLE,
 427                                  0xc2, 0x0000, 0x0005, transfer_buffer,
 428                                  0x02, 300);
 429        if (retval < 0)
 430                dev_err(dev, "%s - error %d getting bytes available request\n",
 431                        __func__, retval);
 432        retval = 0;
 433
 434exit:
 435        kfree(transfer_buffer);
 436
 437        return retval;
 438}
 439
 440static int palm_os_4_probe(struct usb_serial *serial,
 441                                                const struct usb_device_id *id)
 442{
 443        struct device *dev = &serial->dev->dev;
 444        struct palm_ext_connection_info *connection_info;
 445        unsigned char *transfer_buffer;
 446        int retval;
 447
 448        dbg("%s", __func__);
 449
 450        transfer_buffer =  kmalloc(sizeof(*connection_info), GFP_KERNEL);
 451        if (!transfer_buffer) {
 452                dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
 453                        sizeof(*connection_info));
 454                return -ENOMEM;
 455        }
 456
 457        retval = usb_control_msg(serial->dev,
 458                                  usb_rcvctrlpipe(serial->dev, 0),
 459                                  PALM_GET_EXT_CONNECTION_INFORMATION,
 460                                  0xc2, 0x0000, 0x0000, transfer_buffer,
 461                                  sizeof(*connection_info), 300);
 462        if (retval < 0)
 463                dev_err(dev, "%s - error %d getting connection info\n",
 464                        __func__, retval);
 465        else
 466                usb_serial_debug_data(debug, &serial->dev->dev, __func__,
 467                                      retval, transfer_buffer);
 468
 469        kfree(transfer_buffer);
 470        return 0;
 471}
 472
 473
 474static int visor_probe(struct usb_serial *serial,
 475                                        const struct usb_device_id *id)
 476{
 477        int retval = 0;
 478        int (*startup)(struct usb_serial *serial,
 479                                        const struct usb_device_id *id);
 480
 481        dbg("%s", __func__);
 482
 483        /*
 484         * some Samsung Android phones in modem mode have the same ID
 485         * as SPH-I500, but they are ACM devices, so dont bind to them
 486         */
 487        if (id->idVendor == SAMSUNG_VENDOR_ID &&
 488                id->idProduct == SAMSUNG_SPH_I500_ID &&
 489                serial->dev->descriptor.bDeviceClass == USB_CLASS_COMM &&
 490                serial->dev->descriptor.bDeviceSubClass ==
 491                        USB_CDC_SUBCLASS_ACM)
 492                return -ENODEV;
 493
 494        if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
 495                dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
 496                        serial->dev->actconfig->desc.bConfigurationValue);
 497                return -ENODEV;
 498        }
 499
 500        if (id->driver_info) {
 501                startup = (void *)id->driver_info;
 502                retval = startup(serial, id);
 503        }
 504
 505        return retval;
 506}
 507
 508static int visor_calc_num_ports(struct usb_serial *serial)
 509{
 510        int num_ports = (int)(long)(usb_get_serial_data(serial));
 511
 512        if (num_ports)
 513                usb_set_serial_data(serial, NULL);
 514
 515        return num_ports;
 516}
 517
 518static int clie_3_5_startup(struct usb_serial *serial)
 519{
 520        struct device *dev = &serial->dev->dev;
 521        int result;
 522        u8 *data;
 523
 524        dbg("%s", __func__);
 525
 526        data = kmalloc(1, GFP_KERNEL);
 527        if (!data)
 528                return -ENOMEM;
 529
 530        /*
 531         * Note that PEG-300 series devices expect the following two calls.
 532         */
 533
 534        /* get the config number */
 535        result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 536                                  USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
 537                                  0, 0, data, 1, 3000);
 538        if (result < 0) {
 539                dev_err(dev, "%s: get config number failed: %d\n",
 540                                                        __func__, result);
 541                goto out;
 542        }
 543        if (result != 1) {
 544                dev_err(dev, "%s: get config number bad return length: %d\n",
 545                                                        __func__, result);
 546                result = -EIO;
 547                goto out;
 548        }
 549
 550        /* get the interface number */
 551        result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 552                                  USB_REQ_GET_INTERFACE,
 553                                  USB_DIR_IN | USB_RECIP_INTERFACE,
 554                                  0, 0, data, 1, 3000);
 555        if (result < 0) {
 556                dev_err(dev, "%s: get interface number failed: %d\n",
 557                                                        __func__, result);
 558                goto out;
 559        }
 560        if (result != 1) {
 561                dev_err(dev,
 562                        "%s: get interface number bad return length: %d\n",
 563                                                        __func__, result);
 564                result = -EIO;
 565                goto out;
 566        }
 567
 568        result = 0;
 569out:
 570        kfree(data);
 571
 572        return result;
 573}
 574
 575static int treo_attach(struct usb_serial *serial)
 576{
 577        struct usb_serial_port *swap_port;
 578
 579        /* Only do this endpoint hack for the Handspring devices with
 580         * interrupt in endpoints, which for now are the Treo devices. */
 581        if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
 582                                                == HANDSPRING_VENDOR_ID) ||
 583                (le16_to_cpu(serial->dev->descriptor.idVendor)
 584                                                == KYOCERA_VENDOR_ID)) ||
 585                (serial->num_interrupt_in == 0))
 586                return 0;
 587
 588        dbg("%s", __func__);
 589
 590        /*
 591        * It appears that Treos and Kyoceras want to use the
 592        * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
 593        * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
 594        * Note that swapping the bulk out endpoints would break lots of
 595        * apps that want to communicate on the second port.
 596        */
 597#define COPY_PORT(dest, src)                                            \
 598        do { \
 599                dest->read_urb = src->read_urb;                         \
 600                dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
 601                dest->bulk_in_buffer = src->bulk_in_buffer;             \
 602                dest->interrupt_in_urb = src->interrupt_in_urb;         \
 603                dest->interrupt_in_endpointAddress = \
 604                                        src->interrupt_in_endpointAddress;\
 605                dest->interrupt_in_buffer = src->interrupt_in_buffer;   \
 606        } while (0);
 607
 608        swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
 609        if (!swap_port)
 610                return -ENOMEM;
 611        COPY_PORT(swap_port, serial->port[0]);
 612        COPY_PORT(serial->port[0], serial->port[1]);
 613        COPY_PORT(serial->port[1], swap_port);
 614        kfree(swap_port);
 615
 616        return 0;
 617}
 618
 619static int clie_5_attach(struct usb_serial *serial)
 620{
 621        struct usb_serial_port *port;
 622        unsigned int pipe;
 623        int j;
 624
 625        dbg("%s", __func__);
 626
 627        /* TH55 registers 2 ports.
 628           Communication in from the UX50/TH55 uses bulk_in_endpointAddress
 629           from port 0. Communication out to the UX50/TH55 uses
 630           bulk_out_endpointAddress from port 1
 631
 632           Lets do a quick and dirty mapping
 633         */
 634
 635        /* some sanity check */
 636        if (serial->num_ports < 2)
 637                return -1;
 638
 639        /* port 0 now uses the modified endpoint Address */
 640        port = serial->port[0];
 641        port->bulk_out_endpointAddress =
 642                                serial->port[1]->bulk_out_endpointAddress;
 643
 644        pipe = usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress);
 645        for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j)
 646                port->write_urbs[j]->pipe = pipe;
 647
 648        return 0;
 649}
 650
 651static int __init visor_init(void)
 652{
 653        int i, retval;
 654        /* Only if parameters were passed to us */
 655        if (vendor > 0 && product > 0) {
 656                struct usb_device_id usb_dev_temp[] = {
 657                        {
 658                                USB_DEVICE(vendor, product),
 659                                .driver_info =
 660                                        (kernel_ulong_t) &palm_os_4_probe
 661                        }
 662                };
 663
 664                /* Find the last entry in id_table */
 665                for (i = 0;; i++) {
 666                        if (id_table[i].idVendor == 0) {
 667                                id_table[i] = usb_dev_temp[0];
 668                                break;
 669                        }
 670                }
 671                /* Find the last entry in id_table_combined */
 672                for (i = 0;; i++) {
 673                        if (id_table_combined[i].idVendor == 0) {
 674                                id_table_combined[i] = usb_dev_temp[0];
 675                                break;
 676                        }
 677                }
 678                printk(KERN_INFO KBUILD_MODNAME
 679                       ": Untested USB device specified at time of module insertion\n");
 680                printk(KERN_INFO KBUILD_MODNAME
 681                       ": Warning: This is not guaranteed to work\n");
 682                printk(KERN_INFO KBUILD_MODNAME
 683                       ": Using a newer kernel is preferred to this method\n");
 684                printk(KERN_INFO KBUILD_MODNAME
 685                       ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n",
 686                        vendor, product);
 687        }
 688        retval = usb_serial_register(&handspring_device);
 689        if (retval)
 690                goto failed_handspring_register;
 691        retval = usb_serial_register(&clie_3_5_device);
 692        if (retval)
 693                goto failed_clie_3_5_register;
 694        retval = usb_serial_register(&clie_5_device);
 695        if (retval)
 696                goto failed_clie_5_register;
 697        retval = usb_register(&visor_driver);
 698        if (retval)
 699                goto failed_usb_register;
 700        printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
 701
 702        return 0;
 703failed_usb_register:
 704        usb_serial_deregister(&clie_5_device);
 705failed_clie_5_register:
 706        usb_serial_deregister(&clie_3_5_device);
 707failed_clie_3_5_register:
 708        usb_serial_deregister(&handspring_device);
 709failed_handspring_register:
 710        return retval;
 711}
 712
 713
 714static void __exit visor_exit (void)
 715{
 716        usb_deregister(&visor_driver);
 717        usb_serial_deregister(&handspring_device);
 718        usb_serial_deregister(&clie_3_5_device);
 719        usb_serial_deregister(&clie_5_device);
 720}
 721
 722
 723module_init(visor_init);
 724module_exit(visor_exit);
 725
 726MODULE_AUTHOR(DRIVER_AUTHOR);
 727MODULE_DESCRIPTION(DRIVER_DESC);
 728MODULE_LICENSE("GPL");
 729
 730module_param(debug, bool, S_IRUGO | S_IWUSR);
 731MODULE_PARM_DESC(debug, "Debug enabled or not");
 732
 733module_param(vendor, ushort, 0);
 734MODULE_PARM_DESC(vendor, "User specified vendor ID");
 735module_param(product, ushort, 0);
 736MODULE_PARM_DESC(product, "User specified product ID");
 737
 738
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.