drivers/staging/ft1000/ft1000-usb/ft1000_hw.c

   1 //=====================================================
   2 // CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
   3 //
   4 //
   5 // This file is part of Express Card USB Driver
   6 //
   7 // $Id:
   8 //====================================================
   9 #include <linux/init.h>
  10 #include <linux/kernel.h>
  11 #include <linux/module.h>
  12 #include <linux/netdevice.h>
  13 #include <linux/etherdevice.h>
  14 #include <linux/usb.h>
  15 #include "ft1000_usb.h"
  16 #include <linux/types.h>
  17
  18 #define HARLEY_READ_REGISTER     0x0
  19 #define HARLEY_WRITE_REGISTER    0x01
  20 #define HARLEY_READ_DPRAM_32     0x02
  21 #define HARLEY_READ_DPRAM_LOW    0x03
  22 #define HARLEY_READ_DPRAM_HIGH   0x04
  23 #define HARLEY_WRITE_DPRAM_32    0x05
  24 #define HARLEY_WRITE_DPRAM_LOW   0x06
  25 #define HARLEY_WRITE_DPRAM_HIGH  0x07
  26
  27 #define HARLEY_READ_OPERATION    0xc1
  28 #define HARLEY_WRITE_OPERATION   0x41
  29
  30 //#define JDEBUG
  31
  32 static int ft1000_reset(struct net_device *ft1000dev);
  33 static int ft1000_submit_rx_urb(struct ft1000_info *info);
  34 static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev);
  35 static int ft1000_open (struct net_device *dev);
  36 static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev);
  37 static int ft1000_chkcard (struct ft1000_device *dev);
  38
  39 static u8 tempbuffer[1600];
  40
  41 #define MAX_RCV_LOOP   100
  42
  43 //---------------------------------------------------------------------------
  44 // Function:    ft1000_control
  45 //
  46 // Parameters:  ft1000_device  - device structure
  47 //              pipe - usb control message pipe
  48 //              request - control request
  49 //              requesttype - control message request type
  50 //              value - value to be written or 0
  51 //              index - register index
  52 //              data - data buffer to hold the read/write values
  53 //              size - data size
  54 //              timeout - control message time out value
  55 //
  56 // Returns:     STATUS_SUCCESS - success
  57 //              STATUS_FAILURE - failure
  58 //
  59 // Description: This function sends a control message via USB interface synchronously
  60 //
  61 // Notes:
  62 //
  63 //---------------------------------------------------------------------------
  64 static int ft1000_control(struct ft1000_device *ft1000dev, unsigned int pipe,
  65                           u8 request, u8 requesttype, u16 value, u16 index,
  66                           void *data, u16 size, int timeout)
  67 {
  68         u16 ret;
  69
  70         if ((ft1000dev == NULL) || (ft1000dev->dev == NULL)) {
  71                 DEBUG("ft1000dev or ft1000dev->dev == NULL, failure\n");
  72                 return -ENODEV;
  73         }
  74
  75         ret = usb_control_msg(ft1000dev->dev, pipe, request, requesttype,
  76                               value, index, data, size, LARGE_TIMEOUT);
  77
  78         if (ret > 0)
  79                 ret = 0;
  80
  81         return ret;
  82 }
  83
  84 //---------------------------------------------------------------------------
  85 // Function:    ft1000_read_register
  86 //
  87 // Parameters:  ft1000_device  - device structure
  88 //              Data - data buffer to hold the value read
  89 //              nRegIndex - register index
  90 //
  91 // Returns:     STATUS_SUCCESS - success
  92 //              STATUS_FAILURE - failure
  93 //
  94 // Description: This function returns the value in a register
  95 //
  96 // Notes:
  97 //
  98 //---------------------------------------------------------------------------
  99
 100 int ft1000_read_register(struct ft1000_device *ft1000dev, u16* Data,
 101                          u16 nRegIndx)
 102 {
 103         int ret = STATUS_SUCCESS;
 104
 105         ret = ft1000_control(ft1000dev,
 106                              usb_rcvctrlpipe(ft1000dev->dev, 0),
 107                              HARLEY_READ_REGISTER,
 108                              HARLEY_READ_OPERATION,
 109                              0,
 110                              nRegIndx,
 111                              Data,
 112                              2,
 113                              LARGE_TIMEOUT);
 114
 115         return ret;
 116 }
 117
 118 //---------------------------------------------------------------------------
 119 // Function:    ft1000_write_register
 120 //
 121 // Parameters:  ft1000_device  - device structure
 122 //              value - value to write into a register
 123 //              nRegIndex - register index
 124 //
 125 // Returns:     STATUS_SUCCESS - success
 126 //              STATUS_FAILURE - failure
 127 //
 128 // Description: This function writes the value in a register
 129 //
 130 // Notes:
 131 //
 132 //---------------------------------------------------------------------------
 133 int ft1000_write_register(struct ft1000_device *ft1000dev, u16 value,
 134                           u16 nRegIndx)
 135 {
 136         int ret = STATUS_SUCCESS;
 137
 138         ret = ft1000_control(ft1000dev,
 139                              usb_sndctrlpipe(ft1000dev->dev, 0),
 140                              HARLEY_WRITE_REGISTER,
 141                              HARLEY_WRITE_OPERATION,
 142                              value,
 143                              nRegIndx,
 144                              NULL,
 145                              0,
 146                              LARGE_TIMEOUT);
 147
 148         return ret;
 149 }
 150
 151 //---------------------------------------------------------------------------
 152 // Function:    ft1000_read_dpram32
 153 //
 154 // Parameters:  ft1000_device  - device structure
 155 //              indx - starting address to read
 156 //              buffer - data buffer to hold the data read
 157 //              cnt - number of byte read from DPRAM
 158 //
 159 // Returns:     STATUS_SUCCESS - success
 160 //              STATUS_FAILURE - failure
 161 //
 162 // Description: This function read a number of bytes from DPRAM
 163 //
 164 // Notes:
 165 //
 166 //---------------------------------------------------------------------------
 167
 168 int ft1000_read_dpram32(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 169                         u16 cnt)
 170 {
 171         int ret = STATUS_SUCCESS;
 172
 173         ret = ft1000_control(ft1000dev,
 174                              usb_rcvctrlpipe(ft1000dev->dev, 0),
 175                              HARLEY_READ_DPRAM_32,
 176                              HARLEY_READ_OPERATION,
 177                              0,
 178                              indx,
 179                              buffer,
 180                              cnt,
 181                              LARGE_TIMEOUT);
 182
 183         return ret;
 184 }
 185
 186 //---------------------------------------------------------------------------
 187 // Function:    ft1000_write_dpram32
 188 //
 189 // Parameters:  ft1000_device  - device structure
 190 //              indx - starting address to write the data
 191 //              buffer - data buffer to write into DPRAM
 192 //              cnt - number of bytes to write
 193 //
 194 // Returns:     STATUS_SUCCESS - success
 195 //              STATUS_FAILURE - failure
 196 //
 197 // Description: This function writes into DPRAM a number of bytes
 198 //
 199 // Notes:
 200 //
 201 //---------------------------------------------------------------------------
 202 int ft1000_write_dpram32(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 203                          u16 cnt)
 204 {
 205         int ret = STATUS_SUCCESS;
 206
 207         if (cnt % 4)
 208                 cnt += cnt - (cnt % 4);
 209
 210         ret = ft1000_control(ft1000dev,
 211                              usb_sndctrlpipe(ft1000dev->dev, 0),
 212                              HARLEY_WRITE_DPRAM_32,
 213                              HARLEY_WRITE_OPERATION,
 214                              0,
 215                              indx,
 216                              buffer,
 217                              cnt,
 218                              LARGE_TIMEOUT);
 219
 220         return ret;
 221 }
 222
 223 //---------------------------------------------------------------------------
 224 // Function:    ft1000_read_dpram16
 225 //
 226 // Parameters:  ft1000_device  - device structure
 227 //              indx - starting address to read
 228 //              buffer - data buffer to hold the data read
 229 //              hightlow - high or low 16 bit word
 230 //
 231 // Returns:     STATUS_SUCCESS - success
 232 //              STATUS_FAILURE - failure
 233 //
 234 // Description: This function read 16 bits from DPRAM
 235 //
 236 // Notes:
 237 //
 238 //---------------------------------------------------------------------------
 239 int ft1000_read_dpram16(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 240                         u8 highlow)
 241 {
 242         int ret = STATUS_SUCCESS;
 243         u8 request;
 244
 245         if (highlow == 0)
 246                 request = HARLEY_READ_DPRAM_LOW;
 247         else
 248                 request = HARLEY_READ_DPRAM_HIGH;
 249
 250         ret = ft1000_control(ft1000dev,
 251                              usb_rcvctrlpipe(ft1000dev->dev, 0),
 252                              request,
 253                              HARLEY_READ_OPERATION,
 254                              0,
 255                              indx,
 256                              buffer,
 257                              2,
 258                              LARGE_TIMEOUT);
 259
 260         return ret;
 261 }
 262
 263 //---------------------------------------------------------------------------
 264 // Function:    ft1000_write_dpram16
 265 //
 266 // Parameters:  ft1000_device  - device structure
 267 //              indx - starting address to write the data
 268 //              value - 16bits value to write
 269 //              hightlow - high or low 16 bit word
 270 //
 271 // Returns:     STATUS_SUCCESS - success
 272 //              STATUS_FAILURE - failure
 273 //
 274 // Description: This function writes into DPRAM a number of bytes
 275 //
 276 // Notes:
 277 //
 278 //---------------------------------------------------------------------------
 279 int ft1000_write_dpram16(struct ft1000_device *ft1000dev, u16 indx, u16 value, u8 highlow)
 280 {
 281         int ret = STATUS_SUCCESS;
 282         u8 request;
 283
 284         if (highlow == 0)
 285                 request = HARLEY_WRITE_DPRAM_LOW;
 286         else
 287                 request = HARLEY_WRITE_DPRAM_HIGH;
 288
 289         ret = ft1000_control(ft1000dev,
 290                              usb_sndctrlpipe(ft1000dev->dev, 0),
 291                              request,
 292                              HARLEY_WRITE_OPERATION,
 293                              value,
 294                              indx,
 295                              NULL,
 296                              0,
 297                              LARGE_TIMEOUT);
 298
 299         return ret;
 300 }
 301
 302 //---------------------------------------------------------------------------
 303 // Function:    fix_ft1000_read_dpram32
 304 //
 305 // Parameters:  ft1000_device  - device structure
 306 //              indx - starting address to read
 307 //              buffer - data buffer to hold the data read
 308 //
 309 //
 310 // Returns:     STATUS_SUCCESS - success
 311 //              STATUS_FAILURE - failure
 312 //
 313 // Description: This function read DPRAM 4 words at a time
 314 //
 315 // Notes:
 316 //
 317 //---------------------------------------------------------------------------
 318 int fix_ft1000_read_dpram32(struct ft1000_device *ft1000dev, u16 indx,
 319                             u8 *buffer)
 320 {
 321         u8 buf[16];
 322         u16 pos;
 323         int ret = STATUS_SUCCESS;
 324
 325         pos = (indx / 4) * 4;
 326         ret = ft1000_read_dpram32(ft1000dev, pos, buf, 16);
 327
 328         if (ret == STATUS_SUCCESS) {
 329                 pos = (indx % 4) * 4;
 330                 *buffer++ = buf[pos++];
 331                 *buffer++ = buf[pos++];
 332                 *buffer++ = buf[pos++];
 333                 *buffer++ = buf[pos++];
 334         } else {
 335                 DEBUG("fix_ft1000_read_dpram32: DPRAM32 Read failed\n");
 336                 *buffer++ = 0;
 337                 *buffer++ = 0;
 338                 *buffer++ = 0;
 339                 *buffer++ = 0;
 340         }
 341
 342         return ret;
 343 }
 344
 345
 346 //---------------------------------------------------------------------------
 347 // Function:    fix_ft1000_write_dpram32
 348 //
 349 // Parameters:  ft1000_device  - device structure
 350 //              indx - starting address to write
 351 //              buffer - data buffer to write
 352 //
 353 //
 354 // Returns:     STATUS_SUCCESS - success
 355 //              STATUS_FAILURE - failure
 356 //
 357 // Description: This function write to DPRAM 4 words at a time
 358 //
 359 // Notes:
 360 //
 361 //---------------------------------------------------------------------------
 362 int fix_ft1000_write_dpram32(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer)
 363 {
 364         u16 pos1;
 365         u16 pos2;
 366         u16 i;
 367         u8 buf[32];
 368         u8 resultbuffer[32];
 369         u8 *pdata;
 370         int ret  = STATUS_SUCCESS;
 371
 372         pos1 = (indx / 4) * 4;
 373         pdata = buffer;
 374         ret = ft1000_read_dpram32(ft1000dev, pos1, buf, 16);
 375
 376         if (ret == STATUS_SUCCESS) {
 377                 pos2 = (indx % 4)*4;
 378                 buf[pos2++] = *buffer++;
 379                 buf[pos2++] = *buffer++;
 380                 buf[pos2++] = *buffer++;
 381                 buf[pos2++] = *buffer++;
 382                 ret = ft1000_write_dpram32(ft1000dev, pos1, buf, 16);
 383         } else {
 384                 DEBUG("fix_ft1000_write_dpram32: DPRAM32 Read failed\n");
 385                 return ret;
 386         }
 387
 388         ret = ft1000_read_dpram32(ft1000dev, pos1, (u8 *)&resultbuffer[0], 16);
 389
 390         if (ret == STATUS_SUCCESS) {
 391                 buffer = pdata;
 392                 for (i = 0; i < 16; i++) {
 393                         if (buf[i] != resultbuffer[i])
 394                                 ret = STATUS_FAILURE;
 395                 }
 396         }
 397
 398         if (ret == STATUS_FAILURE) {
 399                 ret = ft1000_write_dpram32(ft1000dev, pos1,
 400                                            (u8 *)&tempbuffer[0], 16);
 401                 ret = ft1000_read_dpram32(ft1000dev, pos1,
 402                                           (u8 *)&resultbuffer[0], 16);
 403                 if (ret == STATUS_SUCCESS) {
 404                         buffer = pdata;
 405                         for (i = 0; i < 16; i++) {
 406                                 if (tempbuffer[i] != resultbuffer[i]) {
 407                                         ret = STATUS_FAILURE;
 408                                         DEBUG("%s Failed to write\n",
 409                                               __func__);
 410                                 }
 411                         }
 412                 }
 413         }
 414
 415         return ret;
 416 }
 417
 418
 419 //------------------------------------------------------------------------
 420 //
 421 //  Function:   card_reset_dsp
 422 //
 423 //  Synopsis:   This function is called to reset or activate the DSP
 424 //
 425 //  Arguments:  value                  - reset or activate
 426 //
 427 //  Returns:    None
 428 //-----------------------------------------------------------------------
 429 static void card_reset_dsp(struct ft1000_device *ft1000dev, bool value)
 430 {
 431         u16 status = STATUS_SUCCESS;
 432         u16 tempword;
 433
 434         status = ft1000_write_register(ft1000dev, HOST_INTF_BE,
 435                                         FT1000_REG_SUP_CTRL);
 436         status = ft1000_read_register(ft1000dev, &tempword,
 437                                       FT1000_REG_SUP_CTRL);
 438
 439         if (value) {
 440                 DEBUG("Reset DSP\n");
 441                 status = ft1000_read_register(ft1000dev, &tempword,
 442                                               FT1000_REG_RESET);
 443                 tempword |= DSP_RESET_BIT;
 444                 status = ft1000_write_register(ft1000dev, tempword,
 445                                                FT1000_REG_RESET);
 446         } else {
 447                 DEBUG("Activate DSP\n");
 448                 status = ft1000_read_register(ft1000dev, &tempword,
 449                                               FT1000_REG_RESET);
 450                 tempword |= DSP_ENCRYPTED;
 451                 tempword &= ~DSP_UNENCRYPTED;
 452                 status = ft1000_write_register(ft1000dev, tempword,
 453                                                FT1000_REG_RESET);
 454                 status = ft1000_read_register(ft1000dev, &tempword,
 455                                               FT1000_REG_RESET);
 456                 tempword &= ~EFUSE_MEM_DISABLE;
 457                 tempword &= ~DSP_RESET_BIT;
 458                 status = ft1000_write_register(ft1000dev, tempword,
 459                                                FT1000_REG_RESET);
 460                 status = ft1000_read_register(ft1000dev, &tempword,
 461                                               FT1000_REG_RESET);
 462         }
 463 }
 464
 465 //---------------------------------------------------------------------------
 466 // Function:    card_send_command
 467 //
 468 // Parameters:  ft1000_device  - device structure
 469 //              ptempbuffer - command buffer
 470 //              size - command buffer size
 471 //
 472 // Returns:     STATUS_SUCCESS - success
 473 //              STATUS_FAILURE - failure
 474 //
 475 // Description: This function sends a command to ASIC
 476 //
 477 // Notes:
 478 //
 479 //---------------------------------------------------------------------------
 480 void card_send_command(struct ft1000_device *ft1000dev, void *ptempbuffer,
 481                        int size)
 482 {
 483         unsigned short temp;
 484         unsigned char *commandbuf;
 485
 486         DEBUG("card_send_command: enter card_send_command... size=%d\n", size);
 487
 488         commandbuf = (unsigned char *)kmalloc(size + 2, GFP_KERNEL);
 489         memcpy((void *)commandbuf + 2, (void *)ptempbuffer, size);
 490
 491         ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
 492
 493         if (temp & 0x0100)
 494                 msleep(10);
 495
 496         /* check for odd word */
 497         size = size + 2;
 498
 499         /* Must force to be 32 bit aligned */
 500         if (size % 4)
 501                 size += 4 - (size % 4);
 502
 503         ft1000_write_dpram32(ft1000dev, 0, commandbuf, size);
 504         msleep(1);
 505         ft1000_write_register(ft1000dev, FT1000_DB_DPRAM_TX,
 506                               FT1000_REG_DOORBELL);
 507         msleep(1);
 508
 509         ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
 510
 511         if ((temp & 0x0100) == 0) {
 512                 //DEBUG("card_send_command: Message sent\n");
 513         }
 514
 515 }
 516
 517 //--------------------------------------------------------------------------
 518 //
 519 //  Function:   dsp_reload
 520 //
 521 //  Synopsis:   This function is called to load or reload the DSP
 522 //
 523 //  Arguments:  ft1000dev - device structure
 524 //
 525 //  Returns:    None
 526 //-----------------------------------------------------------------------
 527 int dsp_reload(struct ft1000_device *ft1000dev)
 528 {
 529         u16 status;
 530         u16 tempword;
 531         u32 templong;
 532
 533         struct ft1000_info *pft1000info;
 534
 535         pft1000info = netdev_priv(ft1000dev->net);
 536
 537         pft1000info->CardReady = 0;
 538
 539         /* Program Interrupt Mask register */
 540         status = ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_SUP_IMASK);
 541
 542         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
 543         tempword |= ASIC_RESET_BIT;
 544         status = ft1000_write_register(ft1000dev, tempword, FT1000_REG_RESET);
 545         msleep(1000);
 546         status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
 547         DEBUG("Reset Register = 0x%x\n", tempword);
 548
 549         /* Toggle DSP reset */
 550         card_reset_dsp(ft1000dev, 1);
 551         msleep(1000);
 552         card_reset_dsp(ft1000dev, 0);
 553         msleep(1000);
 554
 555         status =
 556             ft1000_write_register(ft1000dev, HOST_INTF_BE, FT1000_REG_SUP_CTRL);
 557
 558         /* Let's check for FEFE */
 559         status =
 560             ft1000_read_dpram32(ft1000dev, FT1000_MAG_DPRAM_FEFE_INDX,
 561                                 (u8 *) &templong, 4);
 562         DEBUG("templong (fefe) = 0x%8x\n", templong);
 563
 564         /* call codeloader */
 565         status = scram_dnldr(ft1000dev, pFileStart, FileLength);
 566
 567         if (status != STATUS_SUCCESS)
 568                 return -EIO;
 569
 570         msleep(1000);
 571
 572         DEBUG("dsp_reload returned\n");
 573
 574         return 0;
 575 }
 576
 577 //---------------------------------------------------------------------------
 578 //
 579 // Function:   ft1000_reset_asic
 580 // Description: This function will call the Card Service function to reset the
 581 //             ASIC.
 582 // Input:
 583 //     dev    - device structure
 584 // Output:
 585 //     none
 586 //
 587 //---------------------------------------------------------------------------
 588 static void ft1000_reset_asic(struct net_device *dev)
 589 {
 590         struct ft1000_info *info = netdev_priv(dev);
 591         struct ft1000_device *ft1000dev = info->pFt1000Dev;
 592         u16 tempword;
 593
 594         DEBUG("ft1000_hw:ft1000_reset_asic called\n");
 595
 596         /* Let's use the register provided by the Magnemite ASIC to reset the
 597          * ASIC and DSP.
 598          */
 599         ft1000_write_register(ft1000dev, (DSP_RESET_BIT | ASIC_RESET_BIT),
 600                               FT1000_REG_RESET);
 601
 602         mdelay(1);
 603
 604         /* set watermark to -1 in order to not generate an interrrupt */
 605         ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_MAG_WATERMARK);
 606
 607         /* clear interrupts */
 608         ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
 609         DEBUG("ft1000_hw: interrupt status register = 0x%x\n", tempword);
 610         ft1000_write_register(ft1000dev, tempword, FT1000_REG_SUP_ISR);
 611         ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
 612         DEBUG("ft1000_hw: interrupt status register = 0x%x\n", tempword);
 613 }
 614
 615
 616 //---------------------------------------------------------------------------
 617 //
 618 // Function:   ft1000_reset_card
 619 // Description: This function will reset the card
 620 // Input:
 621 //     dev    - device structure
 622 // Output:
 623 //     status - FALSE (card reset fail)
 624 //              TRUE  (card reset successful)
 625 //
 626 //---------------------------------------------------------------------------
 627 static int ft1000_reset_card(struct net_device *dev)
 628 {
 629         struct ft1000_info *info = netdev_priv(dev);
 630         struct ft1000_device *ft1000dev = info->pFt1000Dev;
 631         u16 tempword;
 632         struct prov_record *ptr;
 633
 634         DEBUG("ft1000_hw:ft1000_reset_card called.....\n");
 635
 636         info->fCondResetPend = 1;
 637         info->CardReady = 0;
 638         info->fProvComplete = 0;
 639
 640         /* Make sure we free any memory reserve for provisioning */
 641         while (list_empty(&info->prov_list) == 0) {
 642                 DEBUG("ft1000_reset_card:deleting provisioning record\n");
 643                 ptr =
 644                     list_entry(info->prov_list.next, struct prov_record, list);
 645                 list_del(&ptr->list);
 646                 kfree(ptr->pprov_data);
 647                 kfree(ptr);
 648         }
 649
 650         DEBUG("ft1000_hw:ft1000_reset_card: reset asic\n");
 651         ft1000_reset_asic(dev);
 652
 653         DEBUG("ft1000_hw:ft1000_reset_card: call dsp_reload\n");
 654         dsp_reload(ft1000dev);
 655
 656         DEBUG("dsp reload successful\n");
 657
 658         mdelay(10);
 659
 660         /* Initialize DSP heartbeat area */
 661         ft1000_write_dpram16(ft1000dev, FT1000_MAG_HI_HO, ho_mag,
 662                              FT1000_MAG_HI_HO_INDX);
 663         ft1000_read_dpram16(ft1000dev, FT1000_MAG_HI_HO, (u8 *) &tempword,
 664                             FT1000_MAG_HI_HO_INDX);
 665         DEBUG("ft1000_hw:ft1000_reset_card:hi_ho value = 0x%x\n", tempword);
 666
 667         info->CardReady = 1;
 668
 669         info->fCondResetPend = 0;
 670
 671         return TRUE;
 672 }
 673
 674 #ifdef HAVE_NET_DEVICE_OPS
 675 static const struct net_device_ops ftnet_ops =
 676 {
 677         .ndo_open = &ft1000_open,
 678         .ndo_stop = &ft1000_close,
 679         .ndo_start_xmit = &ft1000_start_xmit,
 680         .ndo_get_stats = &ft1000_netdev_stats,
 681 };
 682 #endif
 683
 684
 685 //---------------------------------------------------------------------------
 686 // Function:    init_ft1000_netdev
 687 //
 688 // Parameters:  ft1000dev  - device structure
 689 //
 690 //
 691 // Returns:     STATUS_SUCCESS - success
 692 //              STATUS_FAILURE - failure
 693 //
 694 // Description: This function initialize the network device
 695 //
 696 // Notes:
 697 //
 698 //---------------------------------------------------------------------------
 699 int init_ft1000_netdev(struct ft1000_device *ft1000dev)
 700 {
 701         struct net_device *netdev;
 702         struct ft1000_info *pInfo = NULL;
 703         struct dpram_blk *pdpram_blk;
 704         int i, ret_val;
 705         struct list_head *cur, *tmp;
 706         char card_nr[2];
 707         unsigned long gCardIndex = 0;
 708
 709         DEBUG("Enter init_ft1000_netdev...\n");
 710
 711         netdev = alloc_etherdev(sizeof(struct ft1000_info));
 712         if (!netdev) {
 713                 DEBUG("init_ft1000_netdev: can not allocate network device\n");
 714                 return -ENOMEM;
 715         }
 716
 717         pInfo = netdev_priv(netdev);
 718
 719         memset(pInfo, 0, sizeof(struct ft1000_info));
 720
 721         dev_alloc_name(netdev, netdev->name);
 722
 723         DEBUG("init_ft1000_netdev: network device name is %s\n", netdev->name);
 724
 725         if (strncmp(netdev->name, "eth", 3) == 0) {
 726                 card_nr[0] = netdev->name[3];
 727                 card_nr[1] = '\0';
 728                 ret_val = strict_strtoul(card_nr, 10, &gCardIndex);
 729                 if (ret_val) {
 730                         printk(KERN_ERR "Can't parse netdev\n");
 731                         goto err_net;
 732                 }
 733
 734                 pInfo->CardNumber = gCardIndex;
 735                 DEBUG("card number = %d\n", pInfo->CardNumber);
 736         } else {
 737                 printk(KERN_ERR "ft1000: Invalid device name\n");
 738                 ret_val = -ENXIO;
 739                 goto err_net;
 740         }
 741
 742         memset(&pInfo->stats, 0, sizeof(struct net_device_stats));
 743
 744         spin_lock_init(&pInfo->dpram_lock);
 745         pInfo->pFt1000Dev = ft1000dev;
 746         pInfo->DrvErrNum = 0;
 747         pInfo->registered = 1;
 748         pInfo->ft1000_reset = ft1000_reset;
 749         pInfo->mediastate = 0;
 750         pInfo->fifo_cnt = 0;
 751         pInfo->DeviceCreated = FALSE;
 752         pInfo->InterruptsEnabled = FALSE;
 753         pInfo->CardReady = 0;
 754         pInfo->DSP_TIME[0] = 0;
 755         pInfo->DSP_TIME[1] = 0;
 756         pInfo->DSP_TIME[2] = 0;
 757         pInfo->DSP_TIME[3] = 0;
 758         pInfo->fAppMsgPend = 0;
 759         pInfo->fCondResetPend = 0;
 760         pInfo->usbboot = 0;
 761         pInfo->dspalive = 0;
 762         memset(&pInfo->tempbuf[0], 0, sizeof(pInfo->tempbuf));
 763
 764         INIT_LIST_HEAD(&pInfo->prov_list);
 765
 766         INIT_LIST_HEAD(&pInfo->nodes.list);
 767
 768 #ifdef HAVE_NET_DEVICE_OPS
 769         netdev->netdev_ops = &ftnet_ops;
 770 #else
 771         netdev->hard_start_xmit = &ft1000_start_xmit;
 772         netdev->get_stats = &ft1000_netdev_stats;
 773         netdev->open = &ft1000_open;
 774         netdev->stop = &ft1000_close;
 775 #endif
 776
 777         ft1000dev->net = netdev;
 778
 779         DEBUG("Initialize free_buff_lock and freercvpool\n");
 780         spin_lock_init(&free_buff_lock);
 781
 782         /* initialize a list of buffers to be use for queuing
 783          * up receive command data
 784          */
 785         INIT_LIST_HEAD(&freercvpool);
 786
 787         /* create list of free buffers */
 788         for (i = 0; i < NUM_OF_FREE_BUFFERS; i++) {
 789                 /* Get memory for DPRAM_DATA link list */
 790                 pdpram_blk = kmalloc(sizeof(struct dpram_blk), GFP_KERNEL);
 791                 if (pdpram_blk == NULL) {
 792                         ret_val = -ENOMEM;
 793                         goto err_free;
 794                 }
 795                 /* Get a block of memory to store command data */
 796                 pdpram_blk->pbuffer = kmalloc(MAX_CMD_SQSIZE, GFP_KERNEL);
 797                 if (pdpram_blk->pbuffer == NULL) {
 798                         ret_val = -ENOMEM;
 799                         kfree(pdpram_blk);
 800                         goto err_free;
 801                 }
 802                 /* link provisioning data */
 803                 list_add_tail(&pdpram_blk->list, &freercvpool);
 804         }
 805         numofmsgbuf = NUM_OF_FREE_BUFFERS;
 806
 807         return 0;
 808
 809 err_free:
 810         list_for_each_safe(cur, tmp, &freercvpool) {
 811                 pdpram_blk = list_entry(cur, struct dpram_blk, list);
 812                 list_del(&pdpram_blk->list);
 813                 kfree(pdpram_blk->pbuffer);
 814                 kfree(pdpram_blk);
 815         }
 816 err_net:
 817         free_netdev(netdev);
 818         return ret_val;
 819 }
 820
 821 //---------------------------------------------------------------------------
 822 // Function:    reg_ft1000_netdev
 823 //
 824 // Parameters:  ft1000dev  - device structure
 825 //
 826 //
 827 // Returns:     STATUS_SUCCESS - success
 828 //              STATUS_FAILURE - failure
 829 //
 830 // Description: This function register the network driver
 831 //
 832 // Notes:
 833 //
 834 //---------------------------------------------------------------------------
 835 int reg_ft1000_netdev(struct ft1000_device *ft1000dev,
 836                       struct usb_interface *intf)
 837 {
 838         struct net_device *netdev;
 839         struct ft1000_info *pInfo;
 840         int rc;
 841
 842         netdev = ft1000dev->net;
 843         pInfo = netdev_priv(ft1000dev->net);
 844         DEBUG("Enter reg_ft1000_netdev...\n");
 845
 846         ft1000_read_register(ft1000dev, &pInfo->AsicID, FT1000_REG_ASIC_ID);
 847
 848         usb_set_intfdata(intf, pInfo);
 849         SET_NETDEV_DEV(netdev, &intf->dev);
 850
 851         rc = register_netdev(netdev);
 852         if (rc) {
 853                 DEBUG("reg_ft1000_netdev: could not register network device\n");
 854                 free_netdev(netdev);
 855                 return rc;
 856         }
 857
 858         ft1000_create_dev(ft1000dev);
 859
 860         DEBUG("reg_ft1000_netdev returned\n");
 861
 862         pInfo->CardReady = 1;
 863
 864         return 0;
 865 }
 866
 867 static int ft1000_reset(struct net_device *dev)
 868 {
 869         ft1000_reset_card(dev);
 870         return 0;
 871 }
 872
 873 //---------------------------------------------------------------------------
 874 // Function:    ft1000_usb_transmit_complete
 875 //
 876 // Parameters:  urb  - transmitted usb urb
 877 //
 878 //
 879 // Returns:     none
 880 //
 881 // Description: This is the callback function when a urb is transmitted
 882 //
 883 // Notes:
 884 //
 885 //---------------------------------------------------------------------------
 886 static void ft1000_usb_transmit_complete(struct urb *urb)
 887 {
 888
 889         struct ft1000_device *ft1000dev = urb->context;
 890
 891         if (urb->status)
 892                 pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
 893
 894         netif_wake_queue(ft1000dev->net);
 895 }
 896
 897 //---------------------------------------------------------------------------
 898 //
 899 // Function:   ft1000_copy_down_pkt
 900 // Description: This function will take an ethernet packet and convert it to
 901 //             a Flarion packet prior to sending it to the ASIC Downlink
 902 //             FIFO.
 903 // Input:
 904 //     dev    - device structure
 905 //     packet - address of ethernet packet
 906 //     len    - length of IP packet
 907 // Output:
 908 //     status - FAILURE
 909 //              SUCCESS
 910 //
 911 //---------------------------------------------------------------------------
 912 static int ft1000_copy_down_pkt(struct net_device *netdev, u8 * packet, u16 len)
 913 {
 914         struct ft1000_info *pInfo = netdev_priv(netdev);
 915         struct ft1000_device *pFt1000Dev = pInfo->pFt1000Dev;
 916
 917         int count, ret;
 918         u8 *t;
 919         struct pseudo_hdr hdr;
 920
 921         if (!pInfo->CardReady) {
 922                 DEBUG("ft1000_copy_down_pkt::Card Not Ready\n");
 923                 return -ENODEV;
 924         }
 925
 926         count = sizeof(struct pseudo_hdr) + len;
 927         if (count > MAX_BUF_SIZE) {
 928                 DEBUG("Error:ft1000_copy_down_pkt:Message Size Overflow!\n");
 929                 DEBUG("size = %d\n", count);
 930                 return -EINVAL;
 931         }
 932
 933         if (count % 4)
 934                 count = count + (4 - (count % 4));
 935
 936         memset(&hdr, 0, sizeof(struct pseudo_hdr));
 937
 938         hdr.length = ntohs(count);
 939         hdr.source = 0x10;
 940         hdr.destination = 0x20;
 941         hdr.portdest = 0x20;
 942         hdr.portsrc = 0x10;
 943         hdr.sh_str_id = 0x91;
 944         hdr.control = 0x00;
 945
 946         hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
 947             hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
 948
 949         memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
 950         memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len);
 951
 952         netif_stop_queue(netdev);
 953
 954         usb_fill_bulk_urb(pFt1000Dev->tx_urb,
 955                           pFt1000Dev->dev,
 956                           usb_sndbulkpipe(pFt1000Dev->dev,
 957                                           pFt1000Dev->bulk_out_endpointAddr),
 958                           pFt1000Dev->tx_buf, count,
 959                           ft1000_usb_transmit_complete, (void *)pFt1000Dev);
 960
 961         t = (u8 *) pFt1000Dev->tx_urb->transfer_buffer;
 962
 963         ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
 964
 965         if (ret) {
 966                 DEBUG("ft1000 failed tx_urb %d\n", ret);
 967                 return ret;
 968         } else {
 969                 pInfo->stats.tx_packets++;
 970                 pInfo->stats.tx_bytes += (len + 14);
 971         }
 972
 973         return 0;
 974 }
 975
 976
 977 //---------------------------------------------------------------------------
 978 // Function:    ft1000_start_xmit
 979 //
 980 // Parameters:  skb - socket buffer to be sent
 981 //              dev - network device
 982 //
 983 //
 984 // Returns:     none
 985 //
 986 // Description: transmit a ethernet packet
 987 //
 988 // Notes:
 989 //
 990 //---------------------------------------------------------------------------
 991 static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
 992 {
 993         struct ft1000_info *pInfo = netdev_priv(dev);
 994         struct ft1000_device *pFt1000Dev = pInfo->pFt1000Dev;
 995         u8 *pdata;
 996         int maxlen, pipe;
 997
 998         if (skb == NULL) {
 999                 DEBUG("ft1000_hw: ft1000_start_xmit:skb == NULL!!!\n");
1000                 return NETDEV_TX_OK;
1001         }
1002
1003         if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
1004                 DEBUG("network driver is closed, return\n");
1005                 goto err;
1006         }
1007
1008         pipe =
1009             usb_sndbulkpipe(pFt1000Dev->dev, pFt1000Dev->bulk_out_endpointAddr);
1010         maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
1011
1012         pdata = (u8 *) skb->data;
1013
1014         if (pInfo->mediastate == 0) {
1015                 /* Drop packet is mediastate is down */
1016                 DEBUG("ft1000_hw:ft1000_start_xmit:mediastate is down\n");
1017                 goto err;
1018         }
1019
1020         if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
1021                 /* Drop packet which has invalid size */
1022                 DEBUG("ft1000_hw:ft1000_start_xmit:invalid ethernet length\n");
1023                 goto err;
1024         }
1025
1026         ft1000_copy_down_pkt(dev, (pdata + ENET_HEADER_SIZE - 2),
1027                              skb->len - ENET_HEADER_SIZE + 2);
1028
1029 err:
1030         dev_kfree_skb(skb);
1031
1032         return NETDEV_TX_OK;
1033 }
1034
1035
1036 //---------------------------------------------------------------------------
1037 //
1038 // Function:   ft1000_copy_up_pkt
1039 // Description: This function will take a packet from the FIFO up link and
1040 //             convert it into an ethernet packet and deliver it to the IP stack
1041 // Input:
1042 //     urb - the receiving usb urb
1043 //
1044 // Output:
1045 //     status - FAILURE
1046 //              SUCCESS
1047 //
1048 //---------------------------------------------------------------------------
1049 static int ft1000_copy_up_pkt(struct urb *urb)
1050 {
1051         struct ft1000_info *info = urb->context;
1052         struct ft1000_device *ft1000dev = info->pFt1000Dev;
1053         struct net_device *net = ft1000dev->net;
1054
1055         u16 tempword;
1056         u16 len;
1057         u16 lena;
1058         struct sk_buff *skb;
1059         u16 i;
1060         u8 *pbuffer = NULL;
1061         u8 *ptemp = NULL;
1062         u16 *chksum;
1063
1064         if (ft1000dev->status & FT1000_STATUS_CLOSING) {
1065                 DEBUG("network driver is closed, return\n");
1066                 return STATUS_SUCCESS;
1067         }
1068         // Read length
1069         len = urb->transfer_buffer_length;
1070         lena = urb->actual_length;
1071
1072         chksum = (u16 *) ft1000dev->rx_buf;
1073
1074         tempword = *chksum++;
1075         for (i = 1; i < 7; i++)
1076                 tempword ^= *chksum++;
1077
1078         if (tempword != *chksum) {
1079                 info->stats.rx_errors++;
1080                 ft1000_submit_rx_urb(info);
1081                 return STATUS_FAILURE;
1082         }
1083
1084         skb = dev_alloc_skb(len + 12 + 2);
1085
1086         if (skb == NULL) {
1087                 DEBUG("ft1000_copy_up_pkt: No Network buffers available\n");
1088                 info->stats.rx_errors++;
1089                 ft1000_submit_rx_urb(info);
1090                 return STATUS_FAILURE;
1091         }
1092
1093         pbuffer = (u8 *) skb_put(skb, len + 12);
1094
1095         /* subtract the number of bytes read already */
1096         ptemp = pbuffer;
1097
1098         /* fake MAC address */
1099         *pbuffer++ = net->dev_addr[0];
1100         *pbuffer++ = net->dev_addr[1];
1101         *pbuffer++ = net->dev_addr[2];
1102         *pbuffer++ = net->dev_addr[3];
1103         *pbuffer++ = net->dev_addr[4];
1104         *pbuffer++ = net->dev_addr[5];
1105         *pbuffer++ = 0x00;
1106         *pbuffer++ = 0x07;
1107         *pbuffer++ = 0x35;
1108         *pbuffer++ = 0xff;
1109         *pbuffer++ = 0xff;
1110         *pbuffer++ = 0xfe;
1111
1112         memcpy(pbuffer, ft1000dev->rx_buf + sizeof(struct pseudo_hdr),
1113                len - sizeof(struct pseudo_hdr));
1114
1115         skb->dev = net;
1116
1117         skb->protocol = eth_type_trans(skb, net);
1118         skb->ip_summed = CHECKSUM_UNNECESSARY;
1119         netif_rx(skb);
1120
1121         info->stats.rx_packets++;
1122         /* Add on 12 bytes for MAC address which was removed */
1123         info->stats.rx_bytes += (lena + 12);
1124
1125         ft1000_submit_rx_urb(info);
1126
1127         return SUCCESS;
1128 }
1129
1130
1131 //---------------------------------------------------------------------------
1132 //
1133 // Function:   ft1000_submit_rx_urb
1134 // Description: the receiving function of the network driver
1135 //
1136 // Input:
1137 //     info - a private structure contains the device information
1138 //
1139 // Output:
1140 //     status - FAILURE
1141 //              SUCCESS
1142 //
1143 //---------------------------------------------------------------------------
1144 static int ft1000_submit_rx_urb(struct ft1000_info *info)
1145 {
1146         int result;
1147         struct ft1000_device *pFt1000Dev = info->pFt1000Dev;
1148
1149         if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
1150                 DEBUG("network driver is closed, return\n");
1151                 return -ENODEV;
1152         }
1153
1154         usb_fill_bulk_urb(pFt1000Dev->rx_urb,
1155                           pFt1000Dev->dev,
1156                           usb_rcvbulkpipe(pFt1000Dev->dev,
1157                                           pFt1000Dev->bulk_in_endpointAddr),
1158                           pFt1000Dev->rx_buf, MAX_BUF_SIZE,
1159                           (usb_complete_t) ft1000_copy_up_pkt, info);
1160
1161         result = usb_submit_urb(pFt1000Dev->rx_urb, GFP_ATOMIC);
1162
1163         if (result) {
1164                 pr_err("ft1000_submit_rx_urb: submitting rx_urb %d failed\n",
1165                        result);
1166                 return result;
1167         }
1168
1169         return 0;
1170 }
1171
1172
1173 //---------------------------------------------------------------------------
1174 // Function:    ft1000_open
1175 //
1176 // Parameters:
1177 //              dev - network device
1178 //
1179 //
1180 // Returns:     none
1181 //
1182 // Description: open the network driver
1183 //
1184 // Notes:
1185 //
1186 //---------------------------------------------------------------------------
1187 static int ft1000_open(struct net_device *dev)
1188 {
1189         struct ft1000_info *pInfo = netdev_priv(dev);
1190         struct timeval tv;
1191         int ret;
1192
1193         DEBUG("ft1000_open is called for card %d\n", pInfo->CardNumber);
1194
1195         pInfo->stats.rx_bytes = 0;
1196         pInfo->stats.tx_bytes = 0;
1197         pInfo->stats.rx_packets = 0;
1198         pInfo->stats.tx_packets = 0;
1199         do_gettimeofday(&tv);
1200         pInfo->ConTm = tv.tv_sec;
1201         pInfo->ProgConStat = 0;
1202
1203         netif_start_queue(dev);
1204
1205         netif_carrier_on(dev);
1206
1207         ret = ft1000_submit_rx_urb(pInfo);
1208
1209         return ret;
1210 }
1211
1212 //---------------------------------------------------------------------------
1213 // Function:    ft1000_close
1214 //
1215 // Parameters:
1216 //              net - network device
1217 //
1218 //
1219 // Returns:     none
1220 //
1221 // Description: close the network driver
1222 //
1223 // Notes:
1224 //
1225 //---------------------------------------------------------------------------
1226 int ft1000_close(struct net_device *net)
1227 {
1228         struct ft1000_info *pInfo = netdev_priv(net);
1229         struct ft1000_device *ft1000dev = pInfo->pFt1000Dev;
1230
1231         ft1000dev->status |= FT1000_STATUS_CLOSING;
1232
1233         DEBUG("ft1000_close: pInfo=%p, ft1000dev=%p\n", pInfo, ft1000dev);
1234         netif_carrier_off(net);
1235         netif_stop_queue(net);
1236         ft1000dev->status &= ~FT1000_STATUS_CLOSING;
1237
1238         pInfo->ProgConStat = 0xff;
1239
1240         return 0;
1241 }
1242
1243 static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
1244 {
1245         struct ft1000_info *info = netdev_priv(dev);
1246
1247         return &(info->stats);
1248 }
1249
1250
1251 //---------------------------------------------------------------------------
1252 //
1253 // Function:   ft1000_chkcard
1254 // Description: This function will check if the device is presently available on
1255 //             the system.
1256 // Input:
1257 //     dev    - device structure
1258 // Output:
1259 //     status - FALSE (device is not present)
1260 //              TRUE  (device is present)
1261 //
1262 //---------------------------------------------------------------------------
1263 static int ft1000_chkcard(struct ft1000_device *dev)
1264 {
1265         u16 tempword;
1266         u16 status;
1267         struct ft1000_info *info = netdev_priv(dev->net);
1268
1269         if (info->fCondResetPend) {
1270                 DEBUG
1271                     ("ft1000_hw:ft1000_chkcard:Card is being reset, return FALSE\n");
1272                 return TRUE;
1273         }
1274         /* Mask register is used to check for device presence since it is never
1275          * set to zero.
1276          */
1277         status = ft1000_read_register(dev, &tempword, FT1000_REG_SUP_IMASK);
1278         if (tempword == 0) {
1279                 DEBUG
1280                     ("ft1000_hw:ft1000_chkcard: IMASK = 0 Card not detected\n");
1281                 return FALSE;
1282         }
1283         /* The system will return the value of 0xffff for the version register
1284          * if the device is not present.
1285          */
1286         status = ft1000_read_register(dev, &tempword, FT1000_REG_ASIC_ID);
1287         if (tempword != 0x1b01) {
1288                 dev->status |= FT1000_STATUS_CLOSING;
1289                 DEBUG
1290                     ("ft1000_hw:ft1000_chkcard: Version = 0xffff Card not detected\n");
1291                 return FALSE;
1292         }
1293         return TRUE;
1294 }
1295
1296 //---------------------------------------------------------------------------
1297 //
1298 // Function:   ft1000_receive_cmd
1299 // Description: This function will read a message from the dpram area.
1300 // Input:
1301 //    dev - network device structure
1302 //    pbuffer - caller supply address to buffer
1303 //    pnxtph - pointer to next pseudo header
1304 // Output:
1305 //   Status = 0 (unsuccessful)
1306 //          = 1 (successful)
1307 //
1308 //---------------------------------------------------------------------------
1309 static bool ft1000_receive_cmd(struct ft1000_device *dev, u16 *pbuffer,
1310                                int maxsz, u16 *pnxtph)
1311 {
1312         u16 size, ret;
1313         u16 *ppseudohdr;
1314         int i;
1315         u16 tempword;
1316
1317         ret =
1318             ft1000_read_dpram16(dev, FT1000_MAG_PH_LEN, (u8 *) &size,
1319                                 FT1000_MAG_PH_LEN_INDX);
1320         size = ntohs(size) + PSEUDOSZ;
1321         if (size > maxsz) {
1322                 DEBUG("FT1000:ft1000_receive_cmd:Invalid command length = %d\n",
1323                       size);
1324                 return FALSE;
1325         } else {
1326                 ppseudohdr = (u16 *) pbuffer;
1327                 ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE,
1328                                       FT1000_REG_DPRAM_ADDR);
1329                 ret =
1330                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
1331                 pbuffer++;
1332                 ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE + 1,
1333                                       FT1000_REG_DPRAM_ADDR);
1334                 for (i = 0; i <= (size >> 2); i++) {
1335                         ret =
1336                             ft1000_read_register(dev, pbuffer,
1337                                                  FT1000_REG_MAG_DPDATAL);
1338                         pbuffer++;
1339                         ret =
1340                             ft1000_read_register(dev, pbuffer,
1341                                                  FT1000_REG_MAG_DPDATAH);
1342                         pbuffer++;
1343                 }
1344                 /* copy odd aligned word */
1345                 ret =
1346                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAL);
1347
1348                 pbuffer++;
1349                 ret =
1350                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
1351
1352                 pbuffer++;
1353                 if (size & 0x0001) {
1354                         /* copy odd byte from fifo */
1355                         ret =
1356                             ft1000_read_register(dev, &tempword,
1357                                                  FT1000_REG_DPRAM_DATA);
1358                         *pbuffer = ntohs(tempword);
1359                 }
1360                 /* Check if pseudo header checksum is good
1361                  * Calculate pseudo header checksum
1362                  */
1363                 tempword = *ppseudohdr++;
1364                 for (i = 1; i < 7; i++)
1365                         tempword ^= *ppseudohdr++;
1366
1367                 if ((tempword != *ppseudohdr))
1368                         return FALSE;
1369
1370                 return TRUE;
1371         }
1372 }
1373
1374 static int ft1000_dsp_prov(void *arg)
1375 {
1376         struct ft1000_device *dev = (struct ft1000_device *)arg;
1377         struct ft1000_info *info = netdev_priv(dev->net);
1378         u16 tempword;
1379         u16 len;
1380         u16 i = 0;
1381         struct prov_record *ptr;
1382         struct pseudo_hdr *ppseudo_hdr;
1383         u16 *pmsg;
1384         u16 status;
1385         u16 TempShortBuf[256];
1386
1387         DEBUG("*** DspProv Entered\n");
1388
1389         while (list_empty(&info->prov_list) == 0) {
1390                 DEBUG("DSP Provisioning List Entry\n");
1391
1392                 /* Check if doorbell is available */
1393                 DEBUG("check if doorbell is cleared\n");
1394                 status =
1395                     ft1000_read_register(dev, &tempword, FT1000_REG_DOORBELL);
1396                 if (status) {
1397                         DEBUG("ft1000_dsp_prov::ft1000_read_register error\n");
1398                         break;
1399                 }
1400
1401                 while (tempword & FT1000_DB_DPRAM_TX) {
1402                         mdelay(10);
1403                         i++;
1404                         if (i == 10) {
1405                                 DEBUG("FT1000:ft1000_dsp_prov:message drop\n");
1406                                 return STATUS_FAILURE;
1407                         }
1408                         ft1000_read_register(dev, &tempword,
1409                                              FT1000_REG_DOORBELL);
1410                 }
1411
1412                 if (!(tempword & FT1000_DB_DPRAM_TX)) {
1413                         DEBUG("*** Provision Data Sent to DSP\n");
1414
1415                         /* Send provisioning data */
1416                         ptr =
1417                             list_entry(info->prov_list.next, struct prov_record,
1418                                        list);
1419                         len = *(u16 *) ptr->pprov_data;
1420                         len = htons(len);
1421                         len += PSEUDOSZ;
1422
1423                         pmsg = (u16 *) ptr->pprov_data;
1424                         ppseudo_hdr = (struct pseudo_hdr *)pmsg;
1425                         /* Insert slow queue sequence number */
1426                         ppseudo_hdr->seq_num = info->squeseqnum++;
1427                         ppseudo_hdr->portsrc = 0;
1428                         /* Calculate new checksum */
1429                         ppseudo_hdr->checksum = *pmsg++;
1430                         for (i = 1; i < 7; i++) {
1431                                 ppseudo_hdr->checksum ^= *pmsg++;
1432                         }
1433
1434                         TempShortBuf[0] = 0;
1435                         TempShortBuf[1] = htons(len);
1436                         memcpy(&TempShortBuf[2], ppseudo_hdr, len);
1437
1438                         status =
1439                             ft1000_write_dpram32(dev, 0,
1440                                                  (u8 *) &TempShortBuf[0],
1441                                                  (unsigned short)(len + 2));
1442                         status =
1443                             ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
1444                                                   FT1000_REG_DOORBELL);
1445
1446                         list_del(&ptr->list);
1447                         kfree(ptr->pprov_data);
1448                         kfree(ptr);
1449                 }
1450                 msleep(10);
1451         }
1452
1453         DEBUG("DSP Provisioning List Entry finished\n");
1454
1455         msleep(100);
1456
1457         info->fProvComplete = 1;
1458         info->CardReady = 1;
1459
1460         return STATUS_SUCCESS;
1461 }
1462
1463 static int ft1000_proc_drvmsg(struct ft1000_device *dev, u16 size)
1464 {
1465         struct ft1000_info *info = netdev_priv(dev->net);
1466         u16 msgtype;
1467         u16 tempword;
1468         struct media_msg *pmediamsg;
1469         struct dsp_init_msg *pdspinitmsg;
1470         struct drv_msg *pdrvmsg;
1471         u16 i;
1472         struct pseudo_hdr *ppseudo_hdr;
1473         u16 *pmsg;
1474         u16 status;
1475         union {
1476                 u8 byte[2];
1477                 u16 wrd;
1478         } convert;
1479
1480         char *cmdbuffer = kmalloc(1600, GFP_KERNEL);
1481         if (!cmdbuffer)
1482                 return STATUS_FAILURE;
1483
1484         status = ft1000_read_dpram32(dev, 0x200, cmdbuffer, size);
1485
1486 #ifdef JDEBUG
1487         DEBUG("ft1000_proc_drvmsg:cmdbuffer\n");
1488         for (i = 0; i < size; i += 5) {
1489                 if ((i + 5) < size)
1490                         DEBUG("0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n", cmdbuffer[i],
1491                               cmdbuffer[i + 1], cmdbuffer[i + 2],
1492                               cmdbuffer[i + 3], cmdbuffer[i + 4]);
1493                 else {
1494                         for (j = i; j < size; j++)
1495                                 DEBUG("0x%x ", cmdbuffer[j]);
1496                         DEBUG("\n");
1497                         break;
1498                 }
1499         }
1500 #endif
1501         pdrvmsg = (struct drv_msg *)&cmdbuffer[2];
1502         msgtype = ntohs(pdrvmsg->type);
1503         DEBUG("ft1000_proc_drvmsg:Command message type = 0x%x\n", msgtype);
1504         switch (msgtype) {
1505         case MEDIA_STATE:{
1506                         DEBUG
1507                             ("ft1000_proc_drvmsg:Command message type = MEDIA_STATE");
1508
1509                         pmediamsg = (struct media_msg *)&cmdbuffer[0];
1510                         if (info->ProgConStat != 0xFF) {
1511                                 if (pmediamsg->state) {
1512                                         DEBUG("Media is up\n");
1513                                         if (info->mediastate == 0) {
1514                                                 if (info->NetDevRegDone) {
1515                                                         netif_wake_queue(dev->
1516                                                                          net);
1517                                                 }
1518                                                 info->mediastate = 1;
1519                                         }
1520                                 } else {
1521                                         DEBUG("Media is down\n");
1522                                         if (info->mediastate == 1) {
1523                                                 info->mediastate = 0;
1524                                                 if (info->NetDevRegDone) {
1525                                                 }
1526                                                 info->ConTm = 0;
1527                                         }
1528                                 }
1529                         } else {
1530                                 DEBUG("Media is down\n");
1531                                 if (info->mediastate == 1) {
1532                                         info->mediastate = 0;
1533                                         info->ConTm = 0;
1534                                 }
1535                         }
1536                         break;
1537                 }
1538         case DSP_INIT_MSG:{
1539                         DEBUG
1540                             ("ft1000_proc_drvmsg:Command message type = DSP_INIT_MSG");
1541
1542                         pdspinitmsg = (struct dsp_init_msg *)&cmdbuffer[2];
1543                         memcpy(info->DspVer, pdspinitmsg->DspVer, DSPVERSZ);
1544                         DEBUG("DSPVER = 0x%2x 0x%2x 0x%2x 0x%2x\n",
1545                               info->DspVer[0], info->DspVer[1], info->DspVer[2],
1546                               info->DspVer[3]);
1547                         memcpy(info->HwSerNum, pdspinitmsg->HwSerNum,
1548                                HWSERNUMSZ);
1549                         memcpy(info->Sku, pdspinitmsg->Sku, SKUSZ);
1550                         memcpy(info->eui64, pdspinitmsg->eui64, EUISZ);
1551                         DEBUG("EUI64=%2x.%2x.%2x.%2x.%2x.%2x.%2x.%2x\n",
1552                               info->eui64[0], info->eui64[1], info->eui64[2],
1553                               info->eui64[3], info->eui64[4], info->eui64[5],
1554                               info->eui64[6], info->eui64[7]);
1555                         dev->net->dev_addr[0] = info->eui64[0];
1556                         dev->net->dev_addr[1] = info->eui64[1];
1557                         dev->net->dev_addr[2] = info->eui64[2];
1558                         dev->net->dev_addr[3] = info->eui64[5];
1559                         dev->net->dev_addr[4] = info->eui64[6];
1560                         dev->net->dev_addr[5] = info->eui64[7];
1561
1562                         if (ntohs(pdspinitmsg->length) ==
1563                             (sizeof(struct dsp_init_msg) - 20)) {
1564                                 memcpy(info->ProductMode,
1565                                        pdspinitmsg->ProductMode, MODESZ);
1566                                 memcpy(info->RfCalVer, pdspinitmsg->RfCalVer,
1567                                        CALVERSZ);
1568                                 memcpy(info->RfCalDate, pdspinitmsg->RfCalDate,
1569                                        CALDATESZ);
1570                                 DEBUG("RFCalVer = 0x%2x 0x%2x\n",
1571                                       info->RfCalVer[0], info->RfCalVer[1]);
1572                         }
1573                         break;
1574                 }
1575         case DSP_PROVISION:{
1576                         DEBUG
1577                             ("ft1000_proc_drvmsg:Command message type = DSP_PROVISION\n");
1578
1579                         /* kick off dspprov routine to start provisioning
1580                          * Send provisioning data to DSP
1581                          */
1582                         if (list_empty(&info->prov_list) == 0) {
1583                                 info->fProvComplete = 0;
1584                                 status = ft1000_dsp_prov(dev);
1585                                 if (status != STATUS_SUCCESS)
1586                                         goto out;
1587                         } else {
1588                                 info->fProvComplete = 1;
1589                                 status =
1590                                     ft1000_write_register(dev, FT1000_DB_HB,
1591                                                           FT1000_REG_DOORBELL);
1592                                 DEBUG
1593                                     ("FT1000:drivermsg:No more DSP provisioning data in dsp image\n");
1594                         }
1595                         DEBUG("ft1000_proc_drvmsg:DSP PROVISION is done\n");
1596                         break;
1597                 }
1598         case DSP_STORE_INFO:{
1599                         DEBUG
1600                             ("ft1000_proc_drvmsg:Command message type = DSP_STORE_INFO");
1601
1602                         DEBUG("FT1000:drivermsg:Got DSP_STORE_INFO\n");
1603                         tempword = ntohs(pdrvmsg->length);
1604                         info->DSPInfoBlklen = tempword;
1605                         if (tempword < (MAX_DSP_SESS_REC - 4)) {
1606                                 pmsg = (u16 *) &pdrvmsg->data[0];
1607                                 for (i = 0; i < ((tempword + 1) / 2); i++) {
1608                                         DEBUG
1609                                             ("FT1000:drivermsg:dsp info data = 0x%x\n",
1610                                              *pmsg);
1611                                         info->DSPInfoBlk[i + 10] = *pmsg++;
1612                                 }
1613                         } else {
1614                                 info->DSPInfoBlklen = 0;
1615                         }
1616                         break;
1617                 }
1618         case DSP_GET_INFO:{
1619                         DEBUG("FT1000:drivermsg:Got DSP_GET_INFO\n");
1620                         /* copy dsp info block to dsp */
1621                         info->DrvMsgPend = 1;
1622                         /* allow any outstanding ioctl to finish */
1623                         mdelay(10);
1624                         status =
1625                             ft1000_read_register(dev, &tempword,
1626                                                  FT1000_REG_DOORBELL);
1627                         if (tempword & FT1000_DB_DPRAM_TX) {
1628                                 mdelay(10);
1629                                 status =
1630                                     ft1000_read_register(dev, &tempword,
1631                                                          FT1000_REG_DOORBELL);
1632                                 if (tempword & FT1000_DB_DPRAM_TX) {
1633                                         mdelay(10);
1634                                         status =
1635                                             ft1000_read_register(dev, &tempword,
1636                                                                  FT1000_REG_DOORBELL);
1637                                         if (tempword & FT1000_DB_DPRAM_TX)
1638                                                 break;
1639                                 }
1640                         }
1641                         /* Put message into Slow Queue
1642                          * Form Pseudo header
1643                          */
1644                         pmsg = (u16 *) info->DSPInfoBlk;
1645                         *pmsg++ = 0;
1646                         *pmsg++ =
1647                             htons(info->DSPInfoBlklen + 20 +
1648                                   info->DSPInfoBlklen);
1649                         ppseudo_hdr =
1650                             (struct pseudo_hdr *)(u16 *) &info->DSPInfoBlk[2];
1651                         ppseudo_hdr->length =
1652                             htons(info->DSPInfoBlklen + 4 +
1653                                   info->DSPInfoBlklen);
1654                         ppseudo_hdr->source = 0x10;
1655                         ppseudo_hdr->destination = 0x20;
1656                         ppseudo_hdr->portdest = 0;
1657                         ppseudo_hdr->portsrc = 0;
1658                         ppseudo_hdr->sh_str_id = 0;
1659                         ppseudo_hdr->control = 0;
1660                         ppseudo_hdr->rsvd1 = 0;
1661                         ppseudo_hdr->rsvd2 = 0;
1662                         ppseudo_hdr->qos_class = 0;
1663                         /* Insert slow queue sequence number */
1664                         ppseudo_hdr->seq_num = info->squeseqnum++;
1665                         /* Insert application id */
1666                         ppseudo_hdr->portsrc = 0;
1667                         /* Calculate new checksum */
1668                         ppseudo_hdr->checksum = *pmsg++;
1669                         for (i = 1; i < 7; i++)
1670                                 ppseudo_hdr->checksum ^= *pmsg++;
1671
1672                         info->DSPInfoBlk[10] = 0x7200;
1673                         info->DSPInfoBlk[11] = htons(info->DSPInfoBlklen);
1674                         status =
1675                             ft1000_write_dpram32(dev, 0,
1676                                                  (u8 *) &info->DSPInfoBlk[0],
1677                                                  (unsigned short)(info->
1678                                                                   DSPInfoBlklen
1679                                                                   + 22));
1680                         status =
1681                             ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
1682                                                   FT1000_REG_DOORBELL);
1683                         info->DrvMsgPend = 0;
1684
1685                         break;
1686                 }
1687
1688         case GET_DRV_ERR_RPT_MSG:{
1689                         DEBUG("FT1000:drivermsg:Got GET_DRV_ERR_RPT_MSG\n");
1690                         /* copy driver error message to dsp */
1691                         info->DrvMsgPend = 1;
1692                         /* allow any outstanding ioctl to finish */
1693                         mdelay(10);
1694                         status =
1695                             ft1000_read_register(dev, &tempword,
1696                                                  FT1000_REG_DOORBELL);
1697                         if (tempword & FT1000_DB_DPRAM_TX) {
1698                                 mdelay(10);
1699                                 status =
1700                                     ft1000_read_register(dev, &tempword,
1701                                                          FT1000_REG_DOORBELL);
1702                                 if (tempword & FT1000_DB_DPRAM_TX)
1703                                         mdelay(10);
1704                         }
1705
1706                         if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
1707                                 /* Put message into Slow Queue
1708                                  * Form Pseudo header
1709                                  */
1710                                 pmsg = (u16 *) &tempbuffer[0];
1711                                 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
1712                                 ppseudo_hdr->length = htons(0x0012);
1713                                 ppseudo_hdr->source = 0x10;
1714                                 ppseudo_hdr->destination = 0x20;
1715                                 ppseudo_hdr->portdest = 0;
1716                                 ppseudo_hdr->portsrc = 0;
1717                                 ppseudo_hdr->sh_str_id = 0;
1718                                 ppseudo_hdr->control = 0;
1719                                 ppseudo_hdr->rsvd1 = 0;
1720                                 ppseudo_hdr->rsvd2 = 0;
1721                                 ppseudo_hdr->qos_class = 0;
1722                                 /* Insert slow queue sequence number */
1723                                 ppseudo_hdr->seq_num = info->squeseqnum++;
1724                                 /* Insert application id */
1725                                 ppseudo_hdr->portsrc = 0;
1726                                 /* Calculate new checksum */
1727                                 ppseudo_hdr->checksum = *pmsg++;
1728                                 for (i = 1; i < 7; i++)
1729                                         ppseudo_hdr->checksum ^= *pmsg++;
1730
1731                                 pmsg = (u16 *) &tempbuffer[16];
1732                                 *pmsg++ = htons(RSP_DRV_ERR_RPT_MSG);
1733                                 *pmsg++ = htons(0x000e);
1734                                 *pmsg++ = htons(info->DSP_TIME[0]);
1735                                 *pmsg++ = htons(info->DSP_TIME[1]);
1736                                 *pmsg++ = htons(info->DSP_TIME[2]);
1737                                 *pmsg++ = htons(info->DSP_TIME[3]);
1738                                 convert.byte[0] = info->DspVer[0];
1739                                 convert.byte[1] = info->DspVer[1];
1740                                 *pmsg++ = convert.wrd;
1741                                 convert.byte[0] = info->DspVer[2];
1742                                 convert.byte[1] = info->DspVer[3];
1743                                 *pmsg++ = convert.wrd;
1744                                 *pmsg++ = htons(info->DrvErrNum);
1745
1746                                 card_send_command(dev,
1747                                                  (unsigned char *)&tempbuffer[0],
1748                                                  (u16) (0x0012 + PSEUDOSZ));
1749                                 info->DrvErrNum = 0;
1750                         }
1751                         info->DrvMsgPend = 0;
1752
1753                         break;
1754                 }
1755
1756         default:
1757                 break;
1758         }
1759
1760         status = STATUS_SUCCESS;
1761 out:
1762         kfree(cmdbuffer);
1763         DEBUG("return from ft1000_proc_drvmsg\n");
1764         return status;
1765 }
1766
1767 int ft1000_poll(void* dev_id) {
1768
1769     struct ft1000_device *dev = (struct ft1000_device *)dev_id;
1770         struct ft1000_info *info = netdev_priv(dev->net);
1771
1772     u16 tempword;
1773     u16 status;
1774     u16 size;
1775     int i;
1776     u16 data;
1777     u16 modulo;
1778     u16 portid;
1779     u16 nxtph;
1780         struct dpram_blk *pdpram_blk;
1781         struct pseudo_hdr *ppseudo_hdr;
1782     unsigned long flags;
1783
1784     if (ft1000_chkcard(dev) == FALSE) {
1785         DEBUG("ft1000_poll::ft1000_chkcard: failed\n");
1786         return STATUS_FAILURE;
1787     }
1788
1789     status = ft1000_read_register (dev, &tempword, FT1000_REG_DOORBELL);
1790
1791     if ( !status )
1792     {
1793
1794         if (tempword & FT1000_DB_DPRAM_RX) {
1795
1796             status = ft1000_read_dpram16(dev, 0x200, (u8 *)&data, 0);
1797             size = ntohs(data) + 16 + 2;
1798             if (size % 4) {
1799                 modulo = 4 - (size % 4);
1800                 size = size + modulo;
1801             }
1802             status = ft1000_read_dpram16(dev, 0x201, (u8 *)&portid, 1);
1803             portid &= 0xff;
1804
1805             if (size < MAX_CMD_SQSIZE) {
1806                 switch (portid)
1807                 {
1808                     case DRIVERID:
1809                         DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type: FT1000_DB_DPRAM_RX : portid DRIVERID\n");
1810
1811                         status = ft1000_proc_drvmsg (dev, size);
1812                         if (status != STATUS_SUCCESS )
1813                             return status;
1814                         break;
1815                     case DSPBCMSGID:
1816                         // This is a dsp broadcast message
1817                         // Check which application has registered for dsp broadcast messages
1818
1819                         for (i=0; i<MAX_NUM_APP; i++) {
1820                            if ( (info->app_info[i].DspBCMsgFlag) && (info->app_info[i].fileobject) &&
1821                                          (info->app_info[i].NumOfMsg < MAX_MSG_LIMIT)  )
1822                            {
1823                                nxtph = FT1000_DPRAM_RX_BASE + 2;
1824                                pdpram_blk = ft1000_get_buffer (&freercvpool);
1825                                if (pdpram_blk != NULL) {
1826                                    if ( ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE, &nxtph) ) {
1827                                         ppseudo_hdr = (struct pseudo_hdr *)pdpram_blk->pbuffer;
1828                                        // Put message into the appropriate application block
1829                                        info->app_info[i].nRxMsg++;
1830                                        spin_lock_irqsave(&free_buff_lock, flags);
1831                                        list_add_tail(&pdpram_blk->list, &info->app_info[i].app_sqlist);
1832                                        info->app_info[i].NumOfMsg++;
1833                                        spin_unlock_irqrestore(&free_buff_lock, flags);
1834                                        wake_up_interruptible(&info->app_info[i].wait_dpram_msg);
1835                                    }
1836                                    else {
1837                                        info->app_info[i].nRxMsgMiss++;
1838                                        // Put memory back to free pool
1839                                        ft1000_free_buffer(pdpram_blk, &freercvpool);
1840                                        DEBUG("pdpram_blk::ft1000_get_buffer NULL\n");
1841                                    }
1842                                }
1843                                else {
1844                                    DEBUG("Out of memory in free receive command pool\n");
1845                                    info->app_info[i].nRxMsgMiss++;
1846                                }
1847                            }
1848                         }
1849                         break;
1850                     default:
1851                         pdpram_blk = ft1000_get_buffer (&freercvpool);
1852
1853                         if (pdpram_blk != NULL) {
1854                            if ( ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE, &nxtph) ) {
1855                                 ppseudo_hdr = (struct pseudo_hdr *)pdpram_blk->pbuffer;
1856                                // Search for correct application block
1857                                for (i=0; i<MAX_NUM_APP; i++) {
1858                                    if (info->app_info[i].app_id == ppseudo_hdr->portdest) {
1859                                        break;
1860                                    }
1861                                }
1862
1863                                if (i == MAX_NUM_APP) {
1864                                    DEBUG("FT1000:ft1000_parse_dpram_msg: No application matching id = %d\n", ppseudo_hdr->portdest);
1865                                    // Put memory back to free pool
1866                                    ft1000_free_buffer(pdpram_blk, &freercvpool);
1867                                }
1868                                else {
1869                                    if (info->app_info[i].NumOfMsg > MAX_MSG_LIMIT) {
1870                                        // Put memory back to free pool
1871                                        ft1000_free_buffer(pdpram_blk, &freercvpool);
1872                                    }
1873                                    else {
1874                                        info->app_info[i].nRxMsg++;
1875                                        // Put message into the appropriate application block
1876                                        list_add_tail(&pdpram_blk->list, &info->app_info[i].app_sqlist);
1877                                        info->app_info[i].NumOfMsg++;
1878                                    }
1879                                }
1880                            }
1881                            else {
1882                                // Put memory back to free pool
1883                                ft1000_free_buffer(pdpram_blk, &freercvpool);
1884                            }
1885                         }
1886                         else {
1887                             DEBUG("Out of memory in free receive command pool\n");
1888                         }
1889                         break;
1890                 }
1891             }
1892             else {
1893                 DEBUG("FT1000:dpc:Invalid total length for SlowQ = %d\n", size);
1894             }
1895             status = ft1000_write_register (dev, FT1000_DB_DPRAM_RX, FT1000_REG_DOORBELL);
1896         }
1897         else if (tempword & FT1000_DSP_ASIC_RESET) {
1898
1899             // Let's reset the ASIC from the Host side as well
1900             status = ft1000_write_register (dev, ASIC_RESET_BIT, FT1000_REG_RESET);
1901             status = ft1000_read_register (dev, &tempword, FT1000_REG_RESET);
1902             i = 0;
1903             while (tempword & ASIC_RESET_BIT) {
1904                 status = ft1000_read_register (dev, &tempword, FT1000_REG_RESET);
1905                 msleep(10);
1906                 i++;
1907                 if (i==100)
1908                     break;
1909             }
1910             if (i==100) {
1911                 DEBUG("Unable to reset ASIC\n");
1912                 return STATUS_SUCCESS;
1913             }
1914             msleep(10);
1915             // Program WMARK register
1916             status = ft1000_write_register (dev, 0x600, FT1000_REG_MAG_WATERMARK);
1917             // clear ASIC reset doorbell
1918             status = ft1000_write_register (dev, FT1000_DSP_ASIC_RESET, FT1000_REG_DOORBELL);
1919             msleep(10);
1920         }
1921         else if (tempword & FT1000_ASIC_RESET_REQ) {
1922             DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type:  FT1000_ASIC_RESET_REQ\n");
1923
1924             // clear ASIC reset request from DSP
1925             status = ft1000_write_register (dev, FT1000_ASIC_RESET_REQ, FT1000_REG_DOORBELL);
1926             status = ft1000_write_register (dev, HOST_INTF_BE, FT1000_REG_SUP_CTRL);
1927             // copy dsp session record from Adapter block
1928             status = ft1000_write_dpram32 (dev, 0, (u8 *)&info->DSPSess.Rec[0], 1024);
1929             // Program WMARK register
1930             status = ft1000_write_register (dev, 0x600, FT1000_REG_MAG_WATERMARK);
1931             // ring doorbell to tell DSP that ASIC is out of reset
1932             status = ft1000_write_register (dev, FT1000_ASIC_RESET_DSP, FT1000_REG_DOORBELL);
1933         }
1934         else if (tempword & FT1000_DB_COND_RESET) {
1935             DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type:  FT1000_DB_COND_RESET\n");
1936
1937             if (info->fAppMsgPend == 0) {
1938                // Reset ASIC and DSP
1939
1940                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER0, (u8 *)&(info->DSP_TIME[0]), FT1000_MAG_DSP_TIMER0_INDX);
1941                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER1, (u8 *)&(info->DSP_TIME[1]), FT1000_MAG_DSP_TIMER1_INDX);
1942                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER2, (u8 *)&(info->DSP_TIME[2]), FT1000_MAG_DSP_TIMER2_INDX);
1943                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER3, (u8 *)&(info->DSP_TIME[3]), FT1000_MAG_DSP_TIMER3_INDX);
1944                 info->CardReady = 0;
1945                 info->DrvErrNum = DSP_CONDRESET_INFO;
1946                 DEBUG("ft1000_hw:DSP conditional reset requested\n");
1947                 info->ft1000_reset(dev->net);
1948             }
1949             else {
1950                 info->fProvComplete = 0;
1951                 info->fCondResetPend = 1;
1952             }
1953
1954             ft1000_write_register(dev, FT1000_DB_COND_RESET, FT1000_REG_DOORBELL);
1955         }
1956
1957     }
1958
1959     return STATUS_SUCCESS;
1960
1961 }