drivers/usb/serial/iuu_phoenix.c

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