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