drivers/usb/serial/iuu_phoenix.c

   1 /*
   2  * Infinity Unlimited USB Phoenix driver
   3  *
   4  * Copyright (C) 2010 James Courtier-Dutton (James@superbug.co.uk)
   5
   6  * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com)
   7  *
   8  * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos BorrÃ¡s)
   9  *
  10  *      This program is free software; you can redistribute it and/or modify
  11  *      it under the terms of the GNU General Public License as published by
  12  *      the Free Software Foundation; either version 2 of the License, or
  13  *      (at your option) any later version.
  14  *
  15  *  And tested with help of WB Electronics
  16  *
  17  */
  18 #include <linux/kernel.h>
  19 #include <linux/errno.h>
  20 #include <linux/init.h>
  21 #include <linux/slab.h>
  22 #include <linux/tty.h>
  23 #include <linux/tty_driver.h>
  24 #include <linux/tty_flip.h>
  25 #include <linux/serial.h>
  26 #include <linux/module.h>
  27 #include <linux/moduleparam.h>
  28 #include <linux/spinlock.h>
  29 #include <linux/uaccess.h>
  30 #include <linux/usb.h>
  31 #include <linux/usb/serial.h>
  32 #include "iuu_phoenix.h"
  33 #include <linux/random.h>
  34
  35
  36 #ifdef CONFIG_USB_SERIAL_DEBUG
  37 static int debug = 1;
  38 #else
  39 static int debug;
  40 #endif
  41
  42 /*
  43  * Version Information
  44  */
  45 #define DRIVER_VERSION "v0.12"
  46 #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
  47
  48 static const struct usb_device_id id_table[] = {
  49         {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
  50         {}                      /* Terminating entry */
  51 };
  52 MODULE_DEVICE_TABLE(usb, id_table);
  53
  54 static struct usb_driver iuu_driver = {
  55         .name = "iuu_phoenix",
  56         .probe = usb_serial_probe,
  57         .disconnect = usb_serial_disconnect,
  58         .id_table = id_table,
  59         .no_dynamic_id = 1,
  60 };
  61
  62 /* turbo parameter */
  63 static int boost = 100;
  64 static int clockmode = 1;
  65 static int cdmode = 1;
  66 static int iuu_cardin;
  67 static int iuu_cardout;
  68 static int xmas;
  69 static int vcc_default = 5;
  70
  71 static void read_rxcmd_callback(struct urb *urb);
  72
  73 struct iuu_private {
  74         spinlock_t lock;        /* store irq state */
  75         wait_queue_head_t delta_msr_wait;
  76         u8 line_status;
  77         int tiostatus;          /* store IUART SIGNAL for tiocmget call */
  78         u8 reset;               /* if 1 reset is needed */
  79         int poll;               /* number of poll */
  80         u8 *writebuf;           /* buffer for writing to device */
  81         int writelen;           /* num of byte to write to device */
  82         u8 *buf;                /* used for initialize speed */
  83         u8 *dbgbuf;             /* debug buffer */
  84         u8 len;
  85         int vcc;                /* vcc (either 3 or 5 V) */
  86         u32 baud;
  87         u32 boost;
  88         u32 clk;
  89 };
  90
  91
  92 static void iuu_free_buf(struct iuu_private *priv)
  93 {
  94         kfree(priv->buf);
  95         kfree(priv->dbgbuf);
  96         kfree(priv->writebuf);
  97 }
  98
  99 static int iuu_alloc_buf(struct iuu_private *priv)
 100 {
 101         priv->buf = kzalloc(256, GFP_KERNEL);
 102         priv->dbgbuf = kzalloc(256, GFP_KERNEL);
 103         priv->writebuf = kzalloc(256, GFP_KERNEL);
 104         if (!priv->buf || !priv->dbgbuf || !priv->writebuf) {
 105                 iuu_free_buf(priv);
 106                 dbg("%s problem allocation buffer", __func__);
 107                 return -ENOMEM;
 108         }
 109         dbg("%s - Privates buffers allocation success", __func__);
 110         return 0;
 111 }
 112
 113 static int iuu_startup(struct usb_serial *serial)
 114 {
 115         unsigned char num_ports = serial->num_ports;
 116         struct iuu_private *priv;
 117
 118         if (serial->num_bulk_in < num_ports || serial->num_bulk_out < num_ports)
 119                 return -ENODEV;
 120
 121         priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
 122         dbg("%s- priv allocation success", __func__);
 123         if (!priv)
 124                 return -ENOMEM;
 125         if (iuu_alloc_buf(priv)) {
 126                 kfree(priv);
 127                 return -ENOMEM;
 128         }
 129         priv->vcc = vcc_default;
 130         spin_lock_init(&priv->lock);
 131         init_waitqueue_head(&priv->delta_msr_wait);
 132         usb_set_serial_port_data(serial->port[0], priv);
 133         return 0;
 134 }
 135
 136 /* Release function */
 137 static void iuu_release(struct usb_serial *serial)
 138 {
 139         struct usb_serial_port *port = serial->port[0];
 140         struct iuu_private *priv = usb_get_serial_port_data(port);
 141         if (!port)
 142                 return;
 143
 144         dbg("%s", __func__);
 145
 146         if (priv) {
 147                 iuu_free_buf(priv);
 148                 dbg("%s - I will free all", __func__);
 149                 usb_set_serial_port_data(port, NULL);
 150
 151                 dbg("%s - priv is not anymore in port structure", __func__);
 152                 kfree(priv);
 153
 154                 dbg("%s priv is now kfree", __func__);
 155         }
 156 }
 157
 158 static int iuu_tiocmset(struct tty_struct *tty,
 159                         unsigned int set, unsigned int clear)
 160 {
 161         struct usb_serial_port *port = tty->driver_data;
 162         struct iuu_private *priv = usb_get_serial_port_data(port);
 163         unsigned long flags;
 164
 165         /* FIXME: locking on tiomstatus */
 166         dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__,
 167             port->number, set, clear);
 168
 169         spin_lock_irqsave(&priv->lock, flags);
 170
 171         if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
 172                 dbg("%s TIOCMSET RESET called !!!", __func__);
 173                 priv->reset = 1;
 174         }
 175         if (set & TIOCM_RTS)
 176                 priv->tiostatus = TIOCM_RTS;
 177
 178         spin_unlock_irqrestore(&priv->lock, flags);
 179         return 0;
 180 }
 181
 182 /* This is used to provide a carrier detect mechanism
 183  * When a card is present, the response is 0x00
 184  * When no card , the reader respond with TIOCM_CD
 185  * This is known as CD autodetect mechanism
 186  */
 187 static int iuu_tiocmget(struct tty_struct *tty)
 188 {
 189         struct usb_serial_port *port = tty->driver_data;
 190         struct iuu_private *priv = usb_get_serial_port_data(port);
 191         unsigned long flags;
 192         int rc;
 193
 194         spin_lock_irqsave(&priv->lock, flags);
 195         rc = priv->tiostatus;
 196         spin_unlock_irqrestore(&priv->lock, flags);
 197
 198         return rc;
 199 }
 200
 201 static void iuu_rxcmd(struct urb *urb)
 202 {
 203         struct usb_serial_port *port = urb->context;
 204         int result;
 205         int status = urb->status;
 206
 207         dbg("%s - enter", __func__);
 208
 209         if (status) {
 210                 dbg("%s - status = %d", __func__, status);
 211                 /* error stop all */
 212                 return;
 213         }
 214
 215
 216         memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
 217         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 218                           usb_sndbulkpipe(port->serial->dev,
 219                                           port->bulk_out_endpointAddress),
 220                           port->write_urb->transfer_buffer, 1,
 221                           read_rxcmd_callback, port);
 222         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 223 }
 224
 225 static int iuu_reset(struct usb_serial_port *port, u8 wt)
 226 {
 227         struct iuu_private *priv = usb_get_serial_port_data(port);
 228         int result;
 229         char *buf_ptr = port->write_urb->transfer_buffer;
 230         dbg("%s - enter", __func__);
 231
 232         /* Prepare the reset sequence */
 233
 234         *buf_ptr++ = IUU_RST_SET;
 235         *buf_ptr++ = IUU_DELAY_MS;
 236         *buf_ptr++ = wt;
 237         *buf_ptr = IUU_RST_CLEAR;
 238
 239         /* send the sequence */
 240
 241         usb_fill_bulk_urb(port->write_urb,
 242                           port->serial->dev,
 243                           usb_sndbulkpipe(port->serial->dev,
 244                                           port->bulk_out_endpointAddress),
 245                           port->write_urb->transfer_buffer, 4, iuu_rxcmd, port);
 246         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 247         priv->reset = 0;
 248         return result;
 249 }
 250
 251 /* Status Function
 252  * Return value is
 253  * 0x00 = no card
 254  * 0x01 = smartcard
 255  * 0x02 = sim card
 256  */
 257 static void iuu_update_status_callback(struct urb *urb)
 258 {
 259         struct usb_serial_port *port = urb->context;
 260         struct iuu_private *priv = usb_get_serial_port_data(port);
 261         u8 *st;
 262         int status = urb->status;
 263
 264         dbg("%s - enter", __func__);
 265
 266         if (status) {
 267                 dbg("%s - status = %d", __func__, status);
 268                 /* error stop all */
 269                 return;
 270         }
 271
 272         st = urb->transfer_buffer;
 273         dbg("%s - enter", __func__);
 274         if (urb->actual_length == 1) {
 275                 switch (st[0]) {
 276                 case 0x1:
 277                         priv->tiostatus = iuu_cardout;
 278                         break;
 279                 case 0x0:
 280                         priv->tiostatus = iuu_cardin;
 281                         break;
 282                 default:
 283                         priv->tiostatus = iuu_cardin;
 284                 }
 285         }
 286         iuu_rxcmd(urb);
 287 }
 288
 289 static void iuu_status_callback(struct urb *urb)
 290 {
 291         struct usb_serial_port *port = urb->context;
 292         int result;
 293         int status = urb->status;
 294
 295         dbg("%s - status = %d", __func__, status);
 296         usb_fill_bulk_urb(port->read_urb, port->serial->dev,
 297                           usb_rcvbulkpipe(port->serial->dev,
 298                                           port->bulk_in_endpointAddress),
 299                           port->read_urb->transfer_buffer, 256,
 300                           iuu_update_status_callback, port);
 301         result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 302 }
 303
 304 static int iuu_status(struct usb_serial_port *port)
 305 {
 306         int result;
 307
 308         dbg("%s - enter", __func__);
 309
 310         memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
 311         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 312                           usb_sndbulkpipe(port->serial->dev,
 313                                           port->bulk_out_endpointAddress),
 314                           port->write_urb->transfer_buffer, 1,
 315                           iuu_status_callback, port);
 316         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 317         return result;
 318
 319 }
 320
 321 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 322 {
 323         int status;
 324         struct usb_serial *serial = port->serial;
 325         int actual = 0;
 326
 327         dbg("%s - enter", __func__);
 328
 329         /* send the data out the bulk port */
 330
 331         status =
 332             usb_bulk_msg(serial->dev,
 333                          usb_sndbulkpipe(serial->dev,
 334                                          port->bulk_out_endpointAddress), buf,
 335                          count, &actual, 1000);
 336
 337         if (status != IUU_OPERATION_OK)
 338                 dbg("%s - error = %2x", __func__, status);
 339         else
 340                 dbg("%s - write OK !", __func__);
 341         return status;
 342 }
 343
 344 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 345 {
 346         int status;
 347         struct usb_serial *serial = port->serial;
 348         int actual = 0;
 349
 350         dbg("%s - enter", __func__);
 351
 352         /* send the data out the bulk port */
 353
 354         status =
 355             usb_bulk_msg(serial->dev,
 356                          usb_rcvbulkpipe(serial->dev,
 357                                          port->bulk_in_endpointAddress), buf,
 358                          count, &actual, 1000);
 359
 360         if (status != IUU_OPERATION_OK)
 361                 dbg("%s - error = %2x", __func__, status);
 362         else
 363                 dbg("%s - read OK !", __func__);
 364         return status;
 365 }
 366
 367 static int iuu_led(struct usb_serial_port *port, unsigned int R,
 368                    unsigned int G, unsigned int B, u8 f)
 369 {
 370         int status;
 371         u8 *buf;
 372         buf = kmalloc(8, GFP_KERNEL);
 373         if (!buf)
 374                 return -ENOMEM;
 375
 376         dbg("%s - enter", __func__);
 377
 378         buf[0] = IUU_SET_LED;
 379         buf[1] = R & 0xFF;
 380         buf[2] = (R >> 8) & 0xFF;
 381         buf[3] = G & 0xFF;
 382         buf[4] = (G >> 8) & 0xFF;
 383         buf[5] = B & 0xFF;
 384         buf[6] = (B >> 8) & 0xFF;
 385         buf[7] = f;
 386         status = bulk_immediate(port, buf, 8);
 387         kfree(buf);
 388         if (status != IUU_OPERATION_OK)
 389                 dbg("%s - led error status = %2x", __func__, status);
 390         else
 391                 dbg("%s - led OK !", __func__);
 392         return IUU_OPERATION_OK;
 393 }
 394
 395 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
 396                                  u8 b2, u8 freq)
 397 {
 398         *buf++ = IUU_SET_LED;
 399         *buf++ = r1;
 400         *buf++ = r2;
 401         *buf++ = g1;
 402         *buf++ = g2;
 403         *buf++ = b1;
 404         *buf++ = b2;
 405         *buf = freq;
 406 }
 407
 408 static void iuu_led_activity_on(struct urb *urb)
 409 {
 410         struct usb_serial_port *port = urb->context;
 411         int result;
 412         char *buf_ptr = port->write_urb->transfer_buffer;
 413         *buf_ptr++ = IUU_SET_LED;
 414         if (xmas == 1) {
 415                 get_random_bytes(buf_ptr, 6);
 416                 *(buf_ptr+7) = 1;
 417         } else {
 418                 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255);
 419         }
 420
 421         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 422                           usb_sndbulkpipe(port->serial->dev,
 423                                           port->bulk_out_endpointAddress),
 424                           port->write_urb->transfer_buffer, 8 ,
 425                           iuu_rxcmd, port);
 426         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 427 }
 428
 429 static void iuu_led_activity_off(struct urb *urb)
 430 {
 431         struct usb_serial_port *port = urb->context;
 432         int result;
 433         char *buf_ptr = port->write_urb->transfer_buffer;
 434         if (xmas == 1) {
 435                 iuu_rxcmd(urb);
 436                 return;
 437         } else {
 438                 *buf_ptr++ = IUU_SET_LED;
 439                 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255);
 440         }
 441         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 442                           usb_sndbulkpipe(port->serial->dev,
 443                                           port->bulk_out_endpointAddress),
 444                           port->write_urb->transfer_buffer, 8 ,
 445                           iuu_rxcmd, port);
 446         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 447 }
 448
 449
 450
 451 static int iuu_clk(struct usb_serial_port *port, int dwFrq)
 452 {
 453         int status;
 454         struct iuu_private *priv = usb_get_serial_port_data(port);
 455         int Count = 0;
 456         u8 FrqGenAdr = 0x69;
 457         u8 DIV = 0;             /* 8bit */
 458         u8 XDRV = 0;            /* 8bit */
 459         u8 PUMP = 0;            /* 3bit */
 460         u8 PBmsb = 0;           /* 2bit */
 461         u8 PBlsb = 0;           /* 8bit */
 462         u8 PO = 0;              /* 1bit */
 463         u8 Q = 0;               /* 7bit */
 464         /* 24bit = 3bytes */
 465         unsigned int P = 0;
 466         unsigned int P2 = 0;
 467         int frq = (int)dwFrq;
 468
 469         dbg("%s - enter", __func__);
 470
 471         if (frq == 0) {
 472                 priv->buf[Count++] = IUU_UART_WRITE_I2C;
 473                 priv->buf[Count++] = FrqGenAdr << 1;
 474                 priv->buf[Count++] = 0x09;
 475                 priv->buf[Count++] = 0x00;
 476
 477                 status = bulk_immediate(port, (u8 *) priv->buf, Count);
 478                 if (status != 0) {
 479                         dbg("%s - write error ", __func__);
 480                         return status;
 481                 }
 482         } else if (frq == 3579000) {
 483                 DIV = 100;
 484                 P = 1193;
 485                 Q = 40;
 486                 XDRV = 0;
 487         } else if (frq == 3680000) {
 488                 DIV = 105;
 489                 P = 161;
 490                 Q = 5;
 491                 XDRV = 0;
 492         } else if (frq == 6000000) {
 493                 DIV = 66;
 494                 P = 66;
 495                 Q = 2;
 496                 XDRV = 0x28;
 497         } else {
 498                 unsigned int result = 0;
 499                 unsigned int tmp = 0;
 500                 unsigned int check;
 501                 unsigned int check2;
 502                 char found = 0x00;
 503                 unsigned int lQ = 2;
 504                 unsigned int lP = 2055;
 505                 unsigned int lDiv = 4;
 506
 507                 for (lQ = 2; lQ <= 47 && !found; lQ++)
 508                         for (lP = 2055; lP >= 8 && !found; lP--)
 509                                 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) {
 510                                         tmp = (12000000 / lDiv) * (lP / lQ);
 511                                         if (abs((int)(tmp - frq)) <
 512                                             abs((int)(frq - result))) {
 513                                                 check2 = (12000000 / lQ);
 514                                                 if (check2 < 250000)
 515                                                         continue;
 516                                                 check = (12000000 / lQ) * lP;
 517                                                 if (check > 400000000)
 518                                                         continue;
 519                                                 if (check < 100000000)
 520                                                         continue;
 521                                                 if (lDiv < 4 || lDiv > 127)
 522                                                         continue;
 523                                                 result = tmp;
 524                                                 P = lP;
 525                                                 DIV = lDiv;
 526                                                 Q = lQ;
 527                                                 if (result == frq)
 528                                                         found = 0x01;
 529                                         }
 530                                 }
 531         }
 532         P2 = ((P - PO) / 2) - 4;
 533         DIV = DIV;
 534         PUMP = 0x04;
 535         PBmsb = (P2 >> 8 & 0x03);
 536         PBlsb = P2 & 0xFF;
 537         PO = (P >> 10) & 0x01;
 538         Q = Q - 2;
 539
 540         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /* 0x4C */
 541         priv->buf[Count++] = FrqGenAdr << 1;
 542         priv->buf[Count++] = 0x09;
 543         priv->buf[Count++] = 0x20;      /* Adr = 0x09 */
 544         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /* 0x4C */
 545         priv->buf[Count++] = FrqGenAdr << 1;
 546         priv->buf[Count++] = 0x0C;
 547         priv->buf[Count++] = DIV;       /* Adr = 0x0C */
 548         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /* 0x4C */
 549         priv->buf[Count++] = FrqGenAdr << 1;
 550         priv->buf[Count++] = 0x12;
 551         priv->buf[Count++] = XDRV;      /* Adr = 0x12 */
 552         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 553         priv->buf[Count++] = FrqGenAdr << 1;
 554         priv->buf[Count++] = 0x13;
 555         priv->buf[Count++] = 0x6B;      /* Adr = 0x13 */
 556         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 557         priv->buf[Count++] = FrqGenAdr << 1;
 558         priv->buf[Count++] = 0x40;
 559         priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) |
 560                              (PBmsb & 0x03);    /* Adr = 0x40 */
 561         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 562         priv->buf[Count++] = FrqGenAdr << 1;
 563         priv->buf[Count++] = 0x41;
 564         priv->buf[Count++] = PBlsb;     /* Adr = 0x41 */
 565         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 566         priv->buf[Count++] = FrqGenAdr << 1;
 567         priv->buf[Count++] = 0x42;
 568         priv->buf[Count++] = Q | (((PO & 0x01) << 7));  /* Adr = 0x42 */
 569         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 570         priv->buf[Count++] = FrqGenAdr << 1;
 571         priv->buf[Count++] = 0x44;
 572         priv->buf[Count++] = (char)0xFF;        /* Adr = 0x44 */
 573         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 574         priv->buf[Count++] = FrqGenAdr << 1;
 575         priv->buf[Count++] = 0x45;
 576         priv->buf[Count++] = (char)0xFE;        /* Adr = 0x45 */
 577         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 578         priv->buf[Count++] = FrqGenAdr << 1;
 579         priv->buf[Count++] = 0x46;
 580         priv->buf[Count++] = 0x7F;      /* Adr = 0x46 */
 581         priv->buf[Count++] = IUU_UART_WRITE_I2C;        /*  0x4C */
 582         priv->buf[Count++] = FrqGenAdr << 1;
 583         priv->buf[Count++] = 0x47;
 584         priv->buf[Count++] = (char)0x84;        /* Adr = 0x47 */
 585
 586         status = bulk_immediate(port, (u8 *) priv->buf, Count);
 587         if (status != IUU_OPERATION_OK)
 588                 dbg("%s - write error ", __func__);
 589         return status;
 590 }
 591
 592 static int iuu_uart_flush(struct usb_serial_port *port)
 593 {
 594         int i;
 595         int status;
 596         u8 rxcmd = IUU_UART_RX;
 597         struct iuu_private *priv = usb_get_serial_port_data(port);
 598
 599         dbg("%s - enter", __func__);
 600
 601         if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
 602                 return -EIO;
 603
 604         for (i = 0; i < 2; i++) {
 605                 status = bulk_immediate(port, &rxcmd, 1);
 606                 if (status != IUU_OPERATION_OK) {
 607                         dbg("%s - uart_flush_write error", __func__);
 608                         return status;
 609                 }
 610
 611                 status = read_immediate(port, &priv->len, 1);
 612                 if (status != IUU_OPERATION_OK) {
 613                         dbg("%s - uart_flush_read error", __func__);
 614                         return status;
 615                 }
 616
 617                 if (priv->len > 0) {
 618                         dbg("%s - uart_flush datalen is : %i ", __func__,
 619                             priv->len);
 620                         status = read_immediate(port, priv->buf, priv->len);
 621                         if (status != IUU_OPERATION_OK) {
 622                                 dbg("%s - uart_flush_read error", __func__);
 623                                 return status;
 624                         }
 625                 }
 626         }
 627         dbg("%s - uart_flush_read OK!", __func__);
 628         iuu_led(port, 0, 0xF000, 0, 0xFF);
 629         return status;
 630 }
 631
 632 static void read_buf_callback(struct urb *urb)
 633 {
 634         struct usb_serial_port *port = urb->context;
 635         unsigned char *data = urb->transfer_buffer;
 636         struct tty_struct *tty;
 637         int status = urb->status;
 638
 639         dbg("%s - status = %d", __func__, status);
 640
 641         if (status) {
 642                 if (status == -EPROTO) {
 643                         /* reschedule needed */
 644                 }
 645                 return;
 646         }
 647
 648         dbg("%s - %i chars to write", __func__, urb->actual_length);
 649         tty = tty_port_tty_get(&port->port);
 650         if (data == NULL)
 651                 dbg("%s - data is NULL !!!", __func__);
 652         if (tty && urb->actual_length && data) {
 653                 tty_insert_flip_string(tty, data, urb->actual_length);
 654                 tty_flip_buffer_push(tty);
 655         }
 656         tty_kref_put(tty);
 657         iuu_led_activity_on(urb);
 658 }
 659
 660 static int iuu_bulk_write(struct usb_serial_port *port)
 661 {
 662         struct iuu_private *priv = usb_get_serial_port_data(port);
 663         unsigned long flags;
 664         int result;
 665         int i;
 666         int buf_len;
 667         char *buf_ptr = port->write_urb->transfer_buffer;
 668         dbg("%s - enter", __func__);
 669
 670         spin_lock_irqsave(&priv->lock, flags);
 671         *buf_ptr++ = IUU_UART_ESC;
 672         *buf_ptr++ = IUU_UART_TX;
 673         *buf_ptr++ = priv->writelen;
 674
 675         memcpy(buf_ptr, priv->writebuf, priv->writelen);
 676         buf_len = priv->writelen;
 677         priv->writelen = 0;
 678         spin_unlock_irqrestore(&priv->lock, flags);
 679         if (debug == 1) {
 680                 for (i = 0; i < buf_len; i++)
 681                         sprintf(priv->dbgbuf + i*2 ,
 682                                 "%02X", priv->writebuf[i]);
 683                 priv->dbgbuf[buf_len+i*2] = 0;
 684                 dbg("%s - writing %i chars : %s", __func__,
 685                     buf_len, priv->dbgbuf);
 686         }
 687         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 688                           usb_sndbulkpipe(port->serial->dev,
 689                                           port->bulk_out_endpointAddress),
 690                           port->write_urb->transfer_buffer, buf_len + 3,
 691                           iuu_rxcmd, port);
 692         result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 693         usb_serial_port_softint(port);
 694         return result;
 695 }
 696
 697 static int iuu_read_buf(struct usb_serial_port *port, int len)
 698 {
 699         int result;
 700         dbg("%s - enter", __func__);
 701
 702         usb_fill_bulk_urb(port->read_urb, port->serial->dev,
 703                           usb_rcvbulkpipe(port->serial->dev,
 704                                           port->bulk_in_endpointAddress),
 705                           port->read_urb->transfer_buffer, len,
 706                           read_buf_callback, port);
 707         result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 708         return result;
 709 }
 710
 711 static void iuu_uart_read_callback(struct urb *urb)
 712 {
 713         struct usb_serial_port *port = urb->context;
 714         struct iuu_private *priv = usb_get_serial_port_data(port);
 715         unsigned long flags;
 716         int status = urb->status;
 717         int error = 0;
 718         int len = 0;
 719         unsigned char *data = urb->transfer_buffer;
 720         priv->poll++;
 721
 722         dbg("%s - enter", __func__);
 723
 724         if (status) {
 725                 dbg("%s - status = %d", __func__, status);
 726                 /* error stop all */
 727                 return;
 728         }
 729         if (data == NULL)
 730                 dbg("%s - data is NULL !!!", __func__);
 731
 732         if (urb->actual_length == 1  && data != NULL)
 733                 len = (int) data[0];
 734
 735         if (urb->actual_length > 1) {
 736                 dbg("%s - urb->actual_length = %i", __func__,
 737                     urb->actual_length);
 738                 error = 1;
 739                 return;
 740         }
 741         /* if len > 0 call readbuf */
 742
 743         if (len > 0 && error == 0) {
 744                 dbg("%s - call read buf - len to read is %i ",
 745                         __func__, len);
 746                 status = iuu_read_buf(port, len);
 747                 return;
 748         }
 749         /* need to update status  ? */
 750         if (priv->poll > 99) {
 751                 status = iuu_status(port);
 752                 priv->poll = 0;
 753                 return;
 754         }
 755
 756         /* reset waiting ? */
 757
 758         if (priv->reset == 1) {
 759                 status = iuu_reset(port, 0xC);
 760                 return;
 761         }
 762         /* Writebuf is waiting */
 763         spin_lock_irqsave(&priv->lock, flags);
 764         if (priv->writelen > 0) {
 765                 spin_unlock_irqrestore(&priv->lock, flags);
 766                 status = iuu_bulk_write(port);
 767                 return;
 768         }
 769         spin_unlock_irqrestore(&priv->lock, flags);
 770         /* if nothing to write call again rxcmd */
 771         dbg("%s - rxcmd recall", __func__);
 772         iuu_led_activity_off(urb);
 773 }
 774
 775 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port,
 776                           const u8 *buf, int count)
 777 {
 778         struct iuu_private *priv = usb_get_serial_port_data(port);
 779         unsigned long flags;
 780         dbg("%s - enter", __func__);
 781
 782         if (count > 256)
 783                 return -ENOMEM;
 784
 785         spin_lock_irqsave(&priv->lock, flags);
 786
 787         /* fill the buffer */
 788         memcpy(priv->writebuf + priv->writelen, buf, count);
 789         priv->writelen += count;
 790         spin_unlock_irqrestore(&priv->lock, flags);
 791
 792         return count;
 793 }
 794
 795 static void read_rxcmd_callback(struct urb *urb)
 796 {
 797         struct usb_serial_port *port = urb->context;
 798         int result;
 799         int status = urb->status;
 800
 801         dbg("%s - status = %d", __func__, status);
 802
 803         if (status) {
 804                 /* error stop all */
 805                 return;
 806         }
 807
 808         usb_fill_bulk_urb(port->read_urb, port->serial->dev,
 809                           usb_rcvbulkpipe(port->serial->dev,
 810                                           port->bulk_in_endpointAddress),
 811                           port->read_urb->transfer_buffer, 256,
 812                           iuu_uart_read_callback, port);
 813         result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 814         dbg("%s - submit result = %d", __func__, result);
 815 }
 816
 817 static int iuu_uart_on(struct usb_serial_port *port)
 818 {
 819         int status;
 820         u8 *buf;
 821
 822         buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL);
 823
 824         if (!buf)
 825                 return -ENOMEM;
 826
 827         buf[0] = IUU_UART_ENABLE;
 828         buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF);
 829         buf[2] = (u8) (0x00FF & IUU_BAUD_9600);
 830         buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN);
 831
 832         status = bulk_immediate(port, buf, 4);
 833         if (status != IUU_OPERATION_OK) {
 834                 dbg("%s - uart_on error", __func__);
 835                 goto uart_enable_failed;
 836         }
 837         /*  iuu_reset() the card after iuu_uart_on() */
 838         status = iuu_uart_flush(port);
 839         if (status != IUU_OPERATION_OK)
 840                 dbg("%s - uart_flush error", __func__);
 841 uart_enable_failed:
 842         kfree(buf);
 843         return status;
 844 }
 845
 846 /*  Diables the IUU UART (a.k.a. the Phoenix voiderface) */
 847 static int iuu_uart_off(struct usb_serial_port *port)
 848 {
 849         int status;
 850         u8 *buf;
 851         buf = kmalloc(1, GFP_KERNEL);
 852         if (!buf)
 853                 return -ENOMEM;
 854         buf[0] = IUU_UART_DISABLE;
 855
 856         status = bulk_immediate(port, buf, 1);
 857         if (status != IUU_OPERATION_OK)
 858                 dbg("%s - uart_off error", __func__);
 859
 860         kfree(buf);
 861         return status;
 862 }
 863
 864 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
 865                          u32 *actual, u8 parity)
 866 {
 867         int status;
 868         u32 baud;
 869         u8 *dataout;
 870         u8 DataCount = 0;
 871         u8 T1Frekvens = 0;
 872         u8 T1reload = 0;
 873         unsigned int T1FrekvensHZ = 0;
 874
 875         dbg("%s - enter baud_base=%d", __func__, baud_base);
 876         dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
 877
 878         if (!dataout)
 879                 return -ENOMEM;
 880         /*baud = (((priv->clk / 35) * baud_base) / 100000); */
 881         baud = baud_base;
 882
 883         if (baud < 1200 || baud > 230400) {
 884                 kfree(dataout);
 885                 return IUU_INVALID_PARAMETER;
 886         }
 887         if (baud > 977) {
 888                 T1Frekvens = 3;
 889                 T1FrekvensHZ = 500000;
 890         }
 891
 892         if (baud > 3906) {
 893                 T1Frekvens = 2;
 894                 T1FrekvensHZ = 2000000;
 895         }
 896
 897         if (baud > 11718) {
 898                 T1Frekvens = 1;
 899                 T1FrekvensHZ = 6000000;
 900         }
 901
 902         if (baud > 46875) {
 903                 T1Frekvens = 0;
 904                 T1FrekvensHZ = 24000000;
 905         }
 906
 907         T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2));
 908
 909         /*  magic number here:  ENTER_FIRMWARE_UPDATE; */
 910         dataout[DataCount++] = IUU_UART_ESC;
 911         /*  magic number here:  CHANGE_BAUD; */
 912         dataout[DataCount++] = IUU_UART_CHANGE;
 913         dataout[DataCount++] = T1Frekvens;
 914         dataout[DataCount++] = T1reload;
 915
 916         *actual = (T1FrekvensHZ / (256 - T1reload)) / 2;
 917
 918         switch (parity & 0x0F) {
 919         case IUU_PARITY_NONE:
 920                 dataout[DataCount++] = 0x00;
 921                 break;
 922         case IUU_PARITY_EVEN:
 923                 dataout[DataCount++] = 0x01;
 924                 break;
 925         case IUU_PARITY_ODD:
 926                 dataout[DataCount++] = 0x02;
 927                 break;
 928         case IUU_PARITY_MARK:
 929                 dataout[DataCount++] = 0x03;
 930                 break;
 931         case IUU_PARITY_SPACE:
 932                 dataout[DataCount++] = 0x04;
 933                 break;
 934         default:
 935                 kfree(dataout);
 936                 return IUU_INVALID_PARAMETER;
 937                 break;
 938         }
 939
 940         switch (parity & 0xF0) {
 941         case IUU_ONE_STOP_BIT:
 942                 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT;
 943                 break;
 944
 945         case IUU_TWO_STOP_BITS:
 946                 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS;
 947                 break;
 948         default:
 949                 kfree(dataout);
 950                 return IUU_INVALID_PARAMETER;
 951                 break;
 952         }
 953
 954         status = bulk_immediate(port, dataout, DataCount);
 955         if (status != IUU_OPERATION_OK)
 956                 dbg("%s - uart_off error", __func__);
 957         kfree(dataout);
 958         return status;
 959 }
 960
 961 static void iuu_set_termios(struct tty_struct *tty,
 962                 struct usb_serial_port *port, struct ktermios *old_termios)
 963 {
 964         const u32 supported_mask = CMSPAR|PARENB|PARODD;
 965         struct iuu_private *priv = usb_get_serial_port_data(port);
 966         unsigned int cflag = tty->termios->c_cflag;
 967         int status;
 968         u32 actual;
 969         u32 parity;
 970         int csize = CS7;
 971         int baud;
 972         u32 newval = cflag & supported_mask;
 973
 974         /* Just use the ospeed. ispeed should be the same. */
 975         baud = tty->termios->c_ospeed;
 976
 977         dbg("%s - enter c_ospeed or baud=%d", __func__, baud);
 978
 979         /* compute the parity parameter */
 980         parity = 0;
 981         if (cflag & CMSPAR) {   /* Using mark space */
 982                 if (cflag & PARODD)
 983                         parity |= IUU_PARITY_SPACE;
 984                 else
 985                         parity |= IUU_PARITY_MARK;
 986         } else if (!(cflag & PARENB)) {
 987                 parity |= IUU_PARITY_NONE;
 988                 csize = CS8;
 989         } else if (cflag & PARODD)
 990                 parity |= IUU_PARITY_ODD;
 991         else
 992                 parity |= IUU_PARITY_EVEN;
 993
 994         parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT);
 995
 996         /* set it */
 997         status = iuu_uart_baud(port,
 998                         baud * priv->boost / 100,
 999                         &actual, parity);
1000
1001         /* set the termios value to the real one, so the user now what has
1002          * changed. We support few fields so its easies to copy the old hw
1003          * settings back over and then adjust them
1004          */
1005         if (old_termios)
1006                 tty_termios_copy_hw(tty->termios, old_termios);
1007         if (status != 0)        /* Set failed - return old bits */
1008                 return;
1009         /* Re-encode speed, parity and csize */
1010         tty_encode_baud_rate(tty, baud, baud);
1011         tty->termios->c_cflag &= ~(supported_mask|CSIZE);
1012         tty->termios->c_cflag |= newval | csize;
1013 }
1014
1015 static void iuu_close(struct usb_serial_port *port)
1016 {
1017         /* iuu_led (port,255,0,0,0); */
1018         struct usb_serial *serial;
1019
1020         serial = port->serial;
1021         if (!serial)
1022                 return;
1023
1024         dbg("%s - port %d", __func__, port->number);
1025
1026         iuu_uart_off(port);
1027         if (serial->dev) {
1028                 /* free writebuf */
1029                 /* shutdown our urbs */
1030                 dbg("%s - shutting down urbs", __func__);
1031                 usb_kill_urb(port->write_urb);
1032                 usb_kill_urb(port->read_urb);
1033                 usb_kill_urb(port->interrupt_in_urb);
1034                 iuu_led(port, 0, 0, 0xF000, 0xFF);
1035         }
1036 }
1037
1038 static void iuu_init_termios(struct tty_struct *tty)
1039 {
1040         dbg("%s - enter", __func__);
1041         *(tty->termios) = tty_std_termios;
1042         tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600
1043                                 | TIOCM_CTS | CSTOPB | PARENB;
1044         tty->termios->c_ispeed = 9600;
1045         tty->termios->c_ospeed = 9600;
1046         tty->termios->c_lflag = 0;
1047         tty->termios->c_oflag = 0;
1048         tty->termios->c_iflag = 0;
1049 }
1050
1051 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
1052 {
1053         struct usb_serial *serial = port->serial;
1054         u8 *buf;
1055         int result;
1056         int baud;
1057         u32 actual;
1058         struct iuu_private *priv = usb_get_serial_port_data(port);
1059
1060         baud = tty->termios->c_ospeed;
1061         tty->termios->c_ispeed = baud;
1062         /* Re-encode speed */
1063         tty_encode_baud_rate(tty, baud, baud);
1064
1065         dbg("%s -  port %d, baud %d", __func__, port->number, baud);
1066         usb_clear_halt(serial->dev, port->write_urb->pipe);
1067         usb_clear_halt(serial->dev, port->read_urb->pipe);
1068
1069         buf = kmalloc(10, GFP_KERNEL);
1070         if (buf == NULL)
1071                 return -ENOMEM;
1072
1073         priv->poll = 0;
1074
1075         /* initialize writebuf */
1076 #define FISH(a, b, c, d) do { \
1077         result = usb_control_msg(port->serial->dev,     \
1078                                 usb_rcvctrlpipe(port->serial->dev, 0),  \
1079                                 b, a, c, d, buf, 1, 1000); \
1080         dbg("0x%x:0x%x:0x%x:0x%x  %d - %x", a, b, c, d, result, \
1081                                 buf[0]); } while (0);
1082
1083 #define SOUP(a, b, c, d)  do { \
1084         result = usb_control_msg(port->serial->dev,     \
1085                                 usb_sndctrlpipe(port->serial->dev, 0),  \
1086                                 b, a, c, d, NULL, 0, 1000); \
1087         dbg("0x%x:0x%x:0x%x:0x%x  %d", a, b, c, d, result); } while (0)
1088
1089         /*  This is not UART related but IUU USB driver related or something */
1090         /*  like that. Basically no IUU will accept any commands from the USB */
1091         /*  host unless it has received the following message */
1092         /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */
1093
1094         SOUP(0x03, 0x02, 0x02, 0x0);
1095         kfree(buf);
1096         iuu_led(port, 0xF000, 0xF000, 0, 0xFF);
1097         iuu_uart_on(port);
1098         if (boost < 100)
1099                 boost = 100;
1100         priv->boost = boost;
1101         priv->baud = baud;
1102         switch (clockmode) {
1103         case 2:         /*  3.680 Mhz */
1104                 priv->clk = IUU_CLK_3680000;
1105                 iuu_clk(port, IUU_CLK_3680000 * boost / 100);
1106                 result =
1107                     iuu_uart_baud(port, baud * boost / 100, &actual,
1108                                   IUU_PARITY_EVEN);
1109                 break;
1110         case 3:         /*  6.00 Mhz */
1111                 iuu_clk(port, IUU_CLK_6000000 * boost / 100);
1112                 priv->clk = IUU_CLK_6000000;
1113                 /* Ratio of 6000000 to 3500000 for baud 9600 */
1114                 result =
1115                     iuu_uart_baud(port, 16457 * boost / 100, &actual,
1116                                   IUU_PARITY_EVEN);
1117                 break;
1118         default:                /*  3.579 Mhz */
1119                 iuu_clk(port, IUU_CLK_3579000 * boost / 100);
1120                 priv->clk = IUU_CLK_3579000;
1121                 result =
1122                     iuu_uart_baud(port, baud * boost / 100, &actual,
1123                                   IUU_PARITY_EVEN);
1124         }
1125
1126         /* set the cardin cardout signals */
1127         switch (cdmode) {
1128         case 0:
1129                 iuu_cardin = 0;
1130                 iuu_cardout = 0;
1131                 break;
1132         case 1:
1133                 iuu_cardin = TIOCM_CD;
1134                 iuu_cardout =  0;
1135                 break;
1136         case 2:
1137                 iuu_cardin = 0;
1138                 iuu_cardout = TIOCM_CD;
1139                 break;
1140         case 3:
1141                 iuu_cardin = TIOCM_DSR;
1142                 iuu_cardout = 0;
1143                 break;
1144         case 4:
1145                 iuu_cardin = 0;
1146                 iuu_cardout = TIOCM_DSR;
1147                 break;
1148         case 5:
1149                 iuu_cardin = TIOCM_CTS;
1150                 iuu_cardout = 0;
1151                 break;
1152         case 6:
1153                 iuu_cardin = 0;
1154                 iuu_cardout = TIOCM_CTS;
1155                 break;
1156         case 7:
1157                 iuu_cardin = TIOCM_RNG;
1158                 iuu_cardout = 0;
1159                 break;
1160         case 8:
1161                 iuu_cardin = 0;
1162                 iuu_cardout = TIOCM_RNG;
1163         }
1164
1165         iuu_uart_flush(port);
1166
1167         dbg("%s - initialization done", __func__);
1168
1169         memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
1170         usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1171                           usb_sndbulkpipe(port->serial->dev,
1172                                           port->bulk_out_endpointAddress),
1173                           port->write_urb->transfer_buffer, 1,
1174                           read_rxcmd_callback, port);
1175         result = usb_submit_urb(port->write_urb, GFP_KERNEL);
1176
1177         if (result) {
1178                 dev_err(&port->dev, "%s - failed submitting read urb,"
1179                         " error %d\n", __func__, result);
1180                 iuu_close(port);
1181                 return -EPROTO;
1182         } else {
1183                 dbg("%s - rxcmd OK", __func__);
1184         }
1185         return result;
1186 }
1187
1188 /* how to change VCC */
1189 static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
1190 {
1191         int status;
1192         u8 *buf;
1193
1194         buf = kmalloc(5, GFP_KERNEL);
1195         if (!buf)
1196                 return -ENOMEM;
1197
1198         dbg("%s - enter", __func__);
1199
1200         buf[0] = IUU_SET_VCC;
1201         buf[1] = vcc & 0xFF;
1202         buf[2] = (vcc >> 8) & 0xFF;
1203         buf[3] = (vcc >> 16) & 0xFF;
1204         buf[4] = (vcc >> 24) & 0xFF;
1205
1206         status = bulk_immediate(port, buf, 5);
1207         kfree(buf);
1208
1209         if (status != IUU_OPERATION_OK)
1210                 dbg("%s - vcc error status = %2x", __func__, status);
1211         else
1212                 dbg("%s - vcc OK !", __func__);
1213
1214         return status;
1215 }
1216
1217 /*
1218  * Sysfs Attributes
1219  */
1220
1221 static ssize_t show_vcc_mode(struct device *dev,
1222         struct device_attribute *attr, char *buf)
1223 {
1224         struct usb_serial_port *port = to_usb_serial_port(dev);
1225         struct iuu_private *priv = usb_get_serial_port_data(port);
1226
1227         return sprintf(buf, "%d\n", priv->vcc);
1228 }
1229
1230 static ssize_t store_vcc_mode(struct device *dev,
1231         struct device_attribute *attr, const char *buf, size_t count)
1232 {
1233         struct usb_serial_port *port = to_usb_serial_port(dev);
1234         struct iuu_private *priv = usb_get_serial_port_data(port);
1235         unsigned long v;
1236
1237         if (strict_strtoul(buf, 10, &v)) {
1238                 dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
1239                                 __func__, buf);
1240                 goto fail_store_vcc_mode;
1241         }
1242
1243         dbg("%s: setting vcc_mode = %ld", __func__, v);
1244
1245         if ((v != 3) && (v != 5)) {
1246                 dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
1247         } else {
1248                 iuu_vcc_set(port, v);
1249                 priv->vcc = v;
1250         }
1251 fail_store_vcc_mode:
1252         return count;
1253 }
1254
1255 static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
1256         store_vcc_mode);
1257
1258 static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
1259 {
1260         dbg("%s", __func__);
1261
1262         return device_create_file(&port->dev, &dev_attr_vcc_mode);
1263 }
1264
1265 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
1266 {
1267         dbg("%s", __func__);
1268
1269         device_remove_file(&port->dev, &dev_attr_vcc_mode);
1270         return 0;
1271 }
1272
1273 /*
1274  * End Sysfs Attributes
1275  */
1276
1277 static struct usb_serial_driver iuu_device = {
1278         .driver = {
1279                    .owner = THIS_MODULE,
1280                    .name = "iuu_phoenix",
1281                    },
1282         .id_table = id_table,
1283         .usb_driver = &iuu_driver,
1284         .num_ports = 1,
1285         .bulk_in_size = 512,
1286         .bulk_out_size = 512,
1287         .port_probe = iuu_create_sysfs_attrs,
1288         .port_remove = iuu_remove_sysfs_attrs,
1289         .open = iuu_open,
1290         .close = iuu_close,
1291         .write = iuu_uart_write,
1292         .read_bulk_callback = iuu_uart_read_callback,
1293         .tiocmget = iuu_tiocmget,
1294         .tiocmset = iuu_tiocmset,
1295         .set_termios = iuu_set_termios,
1296         .init_termios = iuu_init_termios,
1297         .attach = iuu_startup,
1298         .release = iuu_release,
1299 };
1300
1301 static int __init iuu_init(void)
1302 {
1303         int retval;
1304         retval = usb_serial_register(&iuu_device);
1305         if (retval)
1306                 goto failed_usb_serial_register;
1307         retval = usb_register(&iuu_driver);
1308         if (retval)
1309                 goto failed_usb_register;
1310         printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
1311                DRIVER_DESC "\n");
1312         return 0;
1313 failed_usb_register:
1314         usb_serial_deregister(&iuu_device);
1315 failed_usb_serial_register:
1316         return retval;
1317 }
1318
1319 static void __exit iuu_exit(void)
1320 {
1321         usb_deregister(&iuu_driver);
1322         usb_serial_deregister(&iuu_device);
1323 }
1324
1325 module_init(iuu_init);
1326 module_exit(iuu_exit);
1327
1328 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
1329
1330 MODULE_DESCRIPTION(DRIVER_DESC);
1331 MODULE_LICENSE("GPL");
1332
1333 MODULE_VERSION(DRIVER_VERSION);
1334 module_param(debug, bool, S_IRUGO | S_IWUSR);
1335 MODULE_PARM_DESC(debug, "Debug enabled or not");
1336
1337 module_param(xmas, bool, S_IRUGO | S_IWUSR);
1338 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
1339
1340 module_param(boost, int, S_IRUGO | S_IWUSR);
1341 MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
1342
1343 module_param(clockmode, int, S_IRUGO | S_IWUSR);
1344 MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
1345                 "3=6 Mhz)");
1346
1347 module_param(cdmode, int, S_IRUGO | S_IWUSR);
1348 MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
1349                  "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
1350
1351 module_param(vcc_default, int, S_IRUGO | S_IWUSR);
1352 MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
1353                 "for 5V). Default to 5.");