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