drivers/usb/serial/iuu_phoenix.c

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