drivers/usb/serial/iuu_phoenix.c

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