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 = 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 static const struct net_device_ops ftnet_ops =
 675 {
 676         .ndo_open = &ft1000_open,
 677         .ndo_stop = &ft1000_close,
 678         .ndo_start_xmit = &ft1000_start_xmit,
 679         .ndo_get_stats = &ft1000_netdev_stats,
 680 };
 681
 682
 683 //---------------------------------------------------------------------------
 684 // Function:    init_ft1000_netdev
 685 //
 686 // Parameters:  ft1000dev  - device structure
 687 //
 688 //
 689 // Returns:     STATUS_SUCCESS - success
 690 //              STATUS_FAILURE - failure
 691 //
 692 // Description: This function initialize the network device
 693 //
 694 // Notes:
 695 //
 696 //---------------------------------------------------------------------------
 697 int init_ft1000_netdev(struct ft1000_device *ft1000dev)
 698 {
 699         struct net_device *netdev;
 700         struct ft1000_info *pInfo = NULL;
 701         struct dpram_blk *pdpram_blk;
 702         int i, ret_val;
 703         struct list_head *cur, *tmp;
 704         char card_nr[2];
 705         unsigned long gCardIndex = 0;
 706
 707         DEBUG("Enter init_ft1000_netdev...\n");
 708
 709         netdev = alloc_etherdev(sizeof(struct ft1000_info));
 710         if (!netdev) {
 711                 DEBUG("init_ft1000_netdev: can not allocate network device\n");
 712                 return -ENOMEM;
 713         }
 714
 715         pInfo = netdev_priv(netdev);
 716
 717         memset(pInfo, 0, sizeof(struct ft1000_info));
 718
 719         dev_alloc_name(netdev, netdev->name);
 720
 721         DEBUG("init_ft1000_netdev: network device name is %s\n", netdev->name);
 722
 723         if (strncmp(netdev->name, "eth", 3) == 0) {
 724                 card_nr[0] = netdev->name[3];
 725                 card_nr[1] = '\0';
 726                 ret_val = strict_strtoul(card_nr, 10, &gCardIndex);
 727                 if (ret_val) {
 728                         printk(KERN_ERR "Can't parse netdev\n");
 729                         goto err_net;
 730                 }
 731
 732                 pInfo->CardNumber = gCardIndex;
 733                 DEBUG("card number = %d\n", pInfo->CardNumber);
 734         } else {
 735                 printk(KERN_ERR "ft1000: Invalid device name\n");
 736                 ret_val = -ENXIO;
 737                 goto err_net;
 738         }
 739
 740         memset(&pInfo->stats, 0, sizeof(struct net_device_stats));
 741
 742         spin_lock_init(&pInfo->dpram_lock);
 743         pInfo->pFt1000Dev = ft1000dev;
 744         pInfo->DrvErrNum = 0;
 745         pInfo->registered = 1;
 746         pInfo->ft1000_reset = ft1000_reset;
 747         pInfo->mediastate = 0;
 748         pInfo->fifo_cnt = 0;
 749         pInfo->DeviceCreated = FALSE;
 750         pInfo->CardReady = 0;
 751         pInfo->DSP_TIME[0] = 0;
 752         pInfo->DSP_TIME[1] = 0;
 753         pInfo->DSP_TIME[2] = 0;
 754         pInfo->DSP_TIME[3] = 0;
 755         pInfo->fAppMsgPend = 0;
 756         pInfo->fCondResetPend = 0;
 757         pInfo->usbboot = 0;
 758         pInfo->dspalive = 0;
 759         memset(&pInfo->tempbuf[0], 0, sizeof(pInfo->tempbuf));
 760
 761         INIT_LIST_HEAD(&pInfo->prov_list);
 762
 763         INIT_LIST_HEAD(&pInfo->nodes.list);
 764
 765         netdev->netdev_ops = &ftnet_ops;
 766
 767         ft1000dev->net = netdev;
 768
 769         DEBUG("Initialize free_buff_lock and freercvpool\n");
 770         spin_lock_init(&free_buff_lock);
 771
 772         /* initialize a list of buffers to be use for queuing
 773          * up receive command data
 774          */
 775         INIT_LIST_HEAD(&freercvpool);
 776
 777         /* create list of free buffers */
 778         for (i = 0; i < NUM_OF_FREE_BUFFERS; i++) {
 779                 /* Get memory for DPRAM_DATA link list */
 780                 pdpram_blk = kmalloc(sizeof(struct dpram_blk), GFP_KERNEL);
 781                 if (pdpram_blk == NULL) {
 782                         ret_val = -ENOMEM;
 783                         goto err_free;
 784                 }
 785                 /* Get a block of memory to store command data */
 786                 pdpram_blk->pbuffer = kmalloc(MAX_CMD_SQSIZE, GFP_KERNEL);
 787                 if (pdpram_blk->pbuffer == NULL) {
 788                         ret_val = -ENOMEM;
 789                         kfree(pdpram_blk);
 790                         goto err_free;
 791                 }
 792                 /* link provisioning data */
 793                 list_add_tail(&pdpram_blk->list, &freercvpool);
 794         }
 795         numofmsgbuf = NUM_OF_FREE_BUFFERS;
 796
 797         return 0;
 798
 799 err_free:
 800         list_for_each_safe(cur, tmp, &freercvpool) {
 801                 pdpram_blk = list_entry(cur, struct dpram_blk, list);
 802                 list_del(&pdpram_blk->list);
 803                 kfree(pdpram_blk->pbuffer);
 804                 kfree(pdpram_blk);
 805         }
 806 err_net:
 807         free_netdev(netdev);
 808         return ret_val;
 809 }
 810
 811 //---------------------------------------------------------------------------
 812 // Function:    reg_ft1000_netdev
 813 //
 814 // Parameters:  ft1000dev  - device structure
 815 //
 816 //
 817 // Returns:     STATUS_SUCCESS - success
 818 //              STATUS_FAILURE - failure
 819 //
 820 // Description: This function register the network driver
 821 //
 822 // Notes:
 823 //
 824 //---------------------------------------------------------------------------
 825 int reg_ft1000_netdev(struct ft1000_device *ft1000dev,
 826                       struct usb_interface *intf)
 827 {
 828         struct net_device *netdev;
 829         struct ft1000_info *pInfo;
 830         int rc;
 831
 832         netdev = ft1000dev->net;
 833         pInfo = netdev_priv(ft1000dev->net);
 834         DEBUG("Enter reg_ft1000_netdev...\n");
 835
 836         ft1000_read_register(ft1000dev, &pInfo->AsicID, FT1000_REG_ASIC_ID);
 837
 838         usb_set_intfdata(intf, pInfo);
 839         SET_NETDEV_DEV(netdev, &intf->dev);
 840
 841         rc = register_netdev(netdev);
 842         if (rc) {
 843                 DEBUG("reg_ft1000_netdev: could not register network device\n");
 844                 free_netdev(netdev);
 845                 return rc;
 846         }
 847
 848         ft1000_create_dev(ft1000dev);
 849
 850         DEBUG("reg_ft1000_netdev returned\n");
 851
 852         pInfo->CardReady = 1;
 853
 854         return 0;
 855 }
 856
 857 static int ft1000_reset(struct net_device *dev)
 858 {
 859         ft1000_reset_card(dev);
 860         return 0;
 861 }
 862
 863 //---------------------------------------------------------------------------
 864 // Function:    ft1000_usb_transmit_complete
 865 //
 866 // Parameters:  urb  - transmitted usb urb
 867 //
 868 //
 869 // Returns:     none
 870 //
 871 // Description: This is the callback function when a urb is transmitted
 872 //
 873 // Notes:
 874 //
 875 //---------------------------------------------------------------------------
 876 static void ft1000_usb_transmit_complete(struct urb *urb)
 877 {
 878
 879         struct ft1000_device *ft1000dev = urb->context;
 880
 881         if (urb->status)
 882                 pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
 883
 884         netif_wake_queue(ft1000dev->net);
 885 }
 886
 887 //---------------------------------------------------------------------------
 888 //
 889 // Function:   ft1000_copy_down_pkt
 890 // Description: This function will take an ethernet packet and convert it to
 891 //             a Flarion packet prior to sending it to the ASIC Downlink
 892 //             FIFO.
 893 // Input:
 894 //     dev    - device structure
 895 //     packet - address of ethernet packet
 896 //     len    - length of IP packet
 897 // Output:
 898 //     status - FAILURE
 899 //              SUCCESS
 900 //
 901 //---------------------------------------------------------------------------
 902 static int ft1000_copy_down_pkt(struct net_device *netdev, u8 * packet, u16 len)
 903 {
 904         struct ft1000_info *pInfo = netdev_priv(netdev);
 905         struct ft1000_device *pFt1000Dev = pInfo->pFt1000Dev;
 906
 907         int count, ret;
 908         u8 *t;
 909         struct pseudo_hdr hdr;
 910
 911         if (!pInfo->CardReady) {
 912                 DEBUG("ft1000_copy_down_pkt::Card Not Ready\n");
 913                 return -ENODEV;
 914         }
 915
 916         count = sizeof(struct pseudo_hdr) + len;
 917         if (count > MAX_BUF_SIZE) {
 918                 DEBUG("Error:ft1000_copy_down_pkt:Message Size Overflow!\n");
 919                 DEBUG("size = %d\n", count);
 920                 return -EINVAL;
 921         }
 922
 923         if (count % 4)
 924                 count = count + (4 - (count % 4));
 925
 926         memset(&hdr, 0, sizeof(struct pseudo_hdr));
 927
 928         hdr.length = ntohs(count);
 929         hdr.source = 0x10;
 930         hdr.destination = 0x20;
 931         hdr.portdest = 0x20;
 932         hdr.portsrc = 0x10;
 933         hdr.sh_str_id = 0x91;
 934         hdr.control = 0x00;
 935
 936         hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
 937             hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
 938
 939         memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
 940         memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len);
 941
 942         netif_stop_queue(netdev);
 943
 944         usb_fill_bulk_urb(pFt1000Dev->tx_urb,
 945                           pFt1000Dev->dev,
 946                           usb_sndbulkpipe(pFt1000Dev->dev,
 947                                           pFt1000Dev->bulk_out_endpointAddr),
 948                           pFt1000Dev->tx_buf, count,
 949                           ft1000_usb_transmit_complete, (void *)pFt1000Dev);
 950
 951         t = (u8 *) pFt1000Dev->tx_urb->transfer_buffer;
 952
 953         ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
 954
 955         if (ret) {
 956                 DEBUG("ft1000 failed tx_urb %d\n", ret);
 957                 return ret;
 958         } else {
 959                 pInfo->stats.tx_packets++;
 960                 pInfo->stats.tx_bytes += (len + 14);
 961         }
 962
 963         return 0;
 964 }
 965
 966
 967 //---------------------------------------------------------------------------
 968 // Function:    ft1000_start_xmit
 969 //
 970 // Parameters:  skb - socket buffer to be sent
 971 //              dev - network device
 972 //
 973 //
 974 // Returns:     none
 975 //
 976 // Description: transmit a ethernet packet
 977 //
 978 // Notes:
 979 //
 980 //---------------------------------------------------------------------------
 981 static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
 982 {
 983         struct ft1000_info *pInfo = netdev_priv(dev);
 984         struct ft1000_device *pFt1000Dev = pInfo->pFt1000Dev;
 985         u8 *pdata;
 986         int maxlen, pipe;
 987
 988         if (skb == NULL) {
 989                 DEBUG("ft1000_hw: ft1000_start_xmit:skb == NULL!!!\n");
 990                 return NETDEV_TX_OK;
 991         }
 992
 993         if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
 994                 DEBUG("network driver is closed, return\n");
 995                 goto err;
 996         }
 997
 998         pipe =
 999             usb_sndbulkpipe(pFt1000Dev->dev, pFt1000Dev->bulk_out_endpointAddr);
1000         maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
1001
1002         pdata = (u8 *) skb->data;
1003
1004         if (pInfo->mediastate == 0) {
1005                 /* Drop packet is mediastate is down */
1006                 DEBUG("ft1000_hw:ft1000_start_xmit:mediastate is down\n");
1007                 goto err;
1008         }
1009
1010         if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
1011                 /* Drop packet which has invalid size */
1012                 DEBUG("ft1000_hw:ft1000_start_xmit:invalid ethernet length\n");
1013                 goto err;
1014         }
1015
1016         ft1000_copy_down_pkt(dev, (pdata + ENET_HEADER_SIZE - 2),
1017                              skb->len - ENET_HEADER_SIZE + 2);
1018
1019 err:
1020         dev_kfree_skb(skb);
1021
1022         return NETDEV_TX_OK;
1023 }
1024
1025
1026 //---------------------------------------------------------------------------
1027 //
1028 // Function:   ft1000_copy_up_pkt
1029 // Description: This function will take a packet from the FIFO up link and
1030 //             convert it into an ethernet packet and deliver it to the IP stack
1031 // Input:
1032 //     urb - the receiving usb urb
1033 //
1034 // Output:
1035 //     status - FAILURE
1036 //              SUCCESS
1037 //
1038 //---------------------------------------------------------------------------
1039 static int ft1000_copy_up_pkt(struct urb *urb)
1040 {
1041         struct ft1000_info *info = urb->context;
1042         struct ft1000_device *ft1000dev = info->pFt1000Dev;
1043         struct net_device *net = ft1000dev->net;
1044
1045         u16 tempword;
1046         u16 len;
1047         u16 lena;
1048         struct sk_buff *skb;
1049         u16 i;
1050         u8 *pbuffer = NULL;
1051         u8 *ptemp = NULL;
1052         u16 *chksum;
1053
1054         if (ft1000dev->status & FT1000_STATUS_CLOSING) {
1055                 DEBUG("network driver is closed, return\n");
1056                 return STATUS_SUCCESS;
1057         }
1058         // Read length
1059         len = urb->transfer_buffer_length;
1060         lena = urb->actual_length;
1061
1062         chksum = (u16 *) ft1000dev->rx_buf;
1063
1064         tempword = *chksum++;
1065         for (i = 1; i < 7; i++)
1066                 tempword ^= *chksum++;
1067
1068         if (tempword != *chksum) {
1069                 info->stats.rx_errors++;
1070                 ft1000_submit_rx_urb(info);
1071                 return STATUS_FAILURE;
1072         }
1073
1074         skb = dev_alloc_skb(len + 12 + 2);
1075
1076         if (skb == NULL) {
1077                 DEBUG("ft1000_copy_up_pkt: No Network buffers available\n");
1078                 info->stats.rx_errors++;
1079                 ft1000_submit_rx_urb(info);
1080                 return STATUS_FAILURE;
1081         }
1082
1083         pbuffer = (u8 *) skb_put(skb, len + 12);
1084
1085         /* subtract the number of bytes read already */
1086         ptemp = pbuffer;
1087
1088         /* fake MAC address */
1089         *pbuffer++ = net->dev_addr[0];
1090         *pbuffer++ = net->dev_addr[1];
1091         *pbuffer++ = net->dev_addr[2];
1092         *pbuffer++ = net->dev_addr[3];
1093         *pbuffer++ = net->dev_addr[4];
1094         *pbuffer++ = net->dev_addr[5];
1095         *pbuffer++ = 0x00;
1096         *pbuffer++ = 0x07;
1097         *pbuffer++ = 0x35;
1098         *pbuffer++ = 0xff;
1099         *pbuffer++ = 0xff;
1100         *pbuffer++ = 0xfe;
1101
1102         memcpy(pbuffer, ft1000dev->rx_buf + sizeof(struct pseudo_hdr),
1103                len - sizeof(struct pseudo_hdr));
1104
1105         skb->dev = net;
1106
1107         skb->protocol = eth_type_trans(skb, net);
1108         skb->ip_summed = CHECKSUM_UNNECESSARY;
1109         netif_rx(skb);
1110
1111         info->stats.rx_packets++;
1112         /* Add on 12 bytes for MAC address which was removed */
1113         info->stats.rx_bytes += (lena + 12);
1114
1115         ft1000_submit_rx_urb(info);
1116
1117         return SUCCESS;
1118 }
1119
1120
1121 //---------------------------------------------------------------------------
1122 //
1123 // Function:   ft1000_submit_rx_urb
1124 // Description: the receiving function of the network driver
1125 //
1126 // Input:
1127 //     info - a private structure contains the device information
1128 //
1129 // Output:
1130 //     status - FAILURE
1131 //              SUCCESS
1132 //
1133 //---------------------------------------------------------------------------
1134 static int ft1000_submit_rx_urb(struct ft1000_info *info)
1135 {
1136         int result;
1137         struct ft1000_device *pFt1000Dev = info->pFt1000Dev;
1138
1139         if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
1140                 DEBUG("network driver is closed, return\n");
1141                 return -ENODEV;
1142         }
1143
1144         usb_fill_bulk_urb(pFt1000Dev->rx_urb,
1145                           pFt1000Dev->dev,
1146                           usb_rcvbulkpipe(pFt1000Dev->dev,
1147                                           pFt1000Dev->bulk_in_endpointAddr),
1148                           pFt1000Dev->rx_buf, MAX_BUF_SIZE,
1149                           (usb_complete_t) ft1000_copy_up_pkt, info);
1150
1151         result = usb_submit_urb(pFt1000Dev->rx_urb, GFP_ATOMIC);
1152
1153         if (result) {
1154                 pr_err("ft1000_submit_rx_urb: submitting rx_urb %d failed\n",
1155                        result);
1156                 return result;
1157         }
1158
1159         return 0;
1160 }
1161
1162
1163 //---------------------------------------------------------------------------
1164 // Function:    ft1000_open
1165 //
1166 // Parameters:
1167 //              dev - network device
1168 //
1169 //
1170 // Returns:     none
1171 //
1172 // Description: open the network driver
1173 //
1174 // Notes:
1175 //
1176 //---------------------------------------------------------------------------
1177 static int ft1000_open(struct net_device *dev)
1178 {
1179         struct ft1000_info *pInfo = netdev_priv(dev);
1180         struct timeval tv;
1181         int ret;
1182
1183         DEBUG("ft1000_open is called for card %d\n", pInfo->CardNumber);
1184
1185         pInfo->stats.rx_bytes = 0;
1186         pInfo->stats.tx_bytes = 0;
1187         pInfo->stats.rx_packets = 0;
1188         pInfo->stats.tx_packets = 0;
1189         do_gettimeofday(&tv);
1190         pInfo->ConTm = tv.tv_sec;
1191         pInfo->ProgConStat = 0;
1192
1193         netif_start_queue(dev);
1194
1195         netif_carrier_on(dev);
1196
1197         ret = ft1000_submit_rx_urb(pInfo);
1198
1199         return ret;
1200 }
1201
1202 //---------------------------------------------------------------------------
1203 // Function:    ft1000_close
1204 //
1205 // Parameters:
1206 //              net - network device
1207 //
1208 //
1209 // Returns:     none
1210 //
1211 // Description: close the network driver
1212 //
1213 // Notes:
1214 //
1215 //---------------------------------------------------------------------------
1216 int ft1000_close(struct net_device *net)
1217 {
1218         struct ft1000_info *pInfo = netdev_priv(net);
1219         struct ft1000_device *ft1000dev = pInfo->pFt1000Dev;
1220
1221         ft1000dev->status |= FT1000_STATUS_CLOSING;
1222
1223         DEBUG("ft1000_close: pInfo=%p, ft1000dev=%p\n", pInfo, ft1000dev);
1224         netif_carrier_off(net);
1225         netif_stop_queue(net);
1226         ft1000dev->status &= ~FT1000_STATUS_CLOSING;
1227
1228         pInfo->ProgConStat = 0xff;
1229
1230         return 0;
1231 }
1232
1233 static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
1234 {
1235         struct ft1000_info *info = netdev_priv(dev);
1236
1237         return &(info->stats);
1238 }
1239
1240
1241 //---------------------------------------------------------------------------
1242 //
1243 // Function:   ft1000_chkcard
1244 // Description: This function will check if the device is presently available on
1245 //             the system.
1246 // Input:
1247 //     dev    - device structure
1248 // Output:
1249 //     status - FALSE (device is not present)
1250 //              TRUE  (device is present)
1251 //
1252 //---------------------------------------------------------------------------
1253 static int ft1000_chkcard(struct ft1000_device *dev)
1254 {
1255         u16 tempword;
1256         u16 status;
1257         struct ft1000_info *info = netdev_priv(dev->net);
1258
1259         if (info->fCondResetPend) {
1260                 DEBUG
1261                     ("ft1000_hw:ft1000_chkcard:Card is being reset, return FALSE\n");
1262                 return TRUE;
1263         }
1264         /* Mask register is used to check for device presence since it is never
1265          * set to zero.
1266          */
1267         status = ft1000_read_register(dev, &tempword, FT1000_REG_SUP_IMASK);
1268         if (tempword == 0) {
1269                 DEBUG
1270                     ("ft1000_hw:ft1000_chkcard: IMASK = 0 Card not detected\n");
1271                 return FALSE;
1272         }
1273         /* The system will return the value of 0xffff for the version register
1274          * if the device is not present.
1275          */
1276         status = ft1000_read_register(dev, &tempword, FT1000_REG_ASIC_ID);
1277         if (tempword != 0x1b01) {
1278                 dev->status |= FT1000_STATUS_CLOSING;
1279                 DEBUG
1280                     ("ft1000_hw:ft1000_chkcard: Version = 0xffff Card not detected\n");
1281                 return FALSE;
1282         }
1283         return TRUE;
1284 }
1285
1286 //---------------------------------------------------------------------------
1287 //
1288 // Function:   ft1000_receive_cmd
1289 // Description: This function will read a message from the dpram area.
1290 // Input:
1291 //    dev - network device structure
1292 //    pbuffer - caller supply address to buffer
1293 //    pnxtph - pointer to next pseudo header
1294 // Output:
1295 //   Status = 0 (unsuccessful)
1296 //          = 1 (successful)
1297 //
1298 //---------------------------------------------------------------------------
1299 static bool ft1000_receive_cmd(struct ft1000_device *dev, u16 *pbuffer,
1300                                int maxsz, u16 *pnxtph)
1301 {
1302         u16 size, ret;
1303         u16 *ppseudohdr;
1304         int i;
1305         u16 tempword;
1306
1307         ret =
1308             ft1000_read_dpram16(dev, FT1000_MAG_PH_LEN, (u8 *) &size,
1309                                 FT1000_MAG_PH_LEN_INDX);
1310         size = ntohs(size) + PSEUDOSZ;
1311         if (size > maxsz) {
1312                 DEBUG("FT1000:ft1000_receive_cmd:Invalid command length = %d\n",
1313                       size);
1314                 return FALSE;
1315         } else {
1316                 ppseudohdr = (u16 *) pbuffer;
1317                 ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE,
1318                                       FT1000_REG_DPRAM_ADDR);
1319                 ret =
1320                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
1321                 pbuffer++;
1322                 ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE + 1,
1323                                       FT1000_REG_DPRAM_ADDR);
1324                 for (i = 0; i <= (size >> 2); i++) {
1325                         ret =
1326                             ft1000_read_register(dev, pbuffer,
1327                                                  FT1000_REG_MAG_DPDATAL);
1328                         pbuffer++;
1329                         ret =
1330                             ft1000_read_register(dev, pbuffer,
1331                                                  FT1000_REG_MAG_DPDATAH);
1332                         pbuffer++;
1333                 }
1334                 /* copy odd aligned word */
1335                 ret =
1336                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAL);
1337
1338                 pbuffer++;
1339                 ret =
1340                     ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
1341
1342                 pbuffer++;
1343                 if (size & 0x0001) {
1344                         /* copy odd byte from fifo */
1345                         ret =
1346                             ft1000_read_register(dev, &tempword,
1347                                                  FT1000_REG_DPRAM_DATA);
1348                         *pbuffer = ntohs(tempword);
1349                 }
1350                 /* Check if pseudo header checksum is good
1351                  * Calculate pseudo header checksum
1352                  */
1353                 tempword = *ppseudohdr++;
1354                 for (i = 1; i < 7; i++)
1355                         tempword ^= *ppseudohdr++;
1356
1357                 if ((tempword != *ppseudohdr))
1358                         return FALSE;
1359
1360                 return TRUE;
1361         }
1362 }
1363
1364 static int ft1000_dsp_prov(void *arg)
1365 {
1366         struct ft1000_device *dev = (struct ft1000_device *)arg;
1367         struct ft1000_info *info = netdev_priv(dev->net);
1368         u16 tempword;
1369         u16 len;
1370         u16 i = 0;
1371         struct prov_record *ptr;
1372         struct pseudo_hdr *ppseudo_hdr;
1373         u16 *pmsg;
1374         u16 status;
1375         u16 TempShortBuf[256];
1376
1377         DEBUG("*** DspProv Entered\n");
1378
1379         while (list_empty(&info->prov_list) == 0) {
1380                 DEBUG("DSP Provisioning List Entry\n");
1381
1382                 /* Check if doorbell is available */
1383                 DEBUG("check if doorbell is cleared\n");
1384                 status =
1385                     ft1000_read_register(dev, &tempword, FT1000_REG_DOORBELL);
1386                 if (status) {
1387                         DEBUG("ft1000_dsp_prov::ft1000_read_register error\n");
1388                         break;
1389                 }
1390
1391                 while (tempword & FT1000_DB_DPRAM_TX) {
1392                         mdelay(10);
1393                         i++;
1394                         if (i == 10) {
1395                                 DEBUG("FT1000:ft1000_dsp_prov:message drop\n");
1396                                 return STATUS_FAILURE;
1397                         }
1398                         ft1000_read_register(dev, &tempword,
1399                                              FT1000_REG_DOORBELL);
1400                 }
1401
1402                 if (!(tempword & FT1000_DB_DPRAM_TX)) {
1403                         DEBUG("*** Provision Data Sent to DSP\n");
1404
1405                         /* Send provisioning data */
1406                         ptr =
1407                             list_entry(info->prov_list.next, struct prov_record,
1408                                        list);
1409                         len = *(u16 *) ptr->pprov_data;
1410                         len = htons(len);
1411                         len += PSEUDOSZ;
1412
1413                         pmsg = (u16 *) ptr->pprov_data;
1414                         ppseudo_hdr = (struct pseudo_hdr *)pmsg;
1415                         /* Insert slow queue sequence number */
1416                         ppseudo_hdr->seq_num = info->squeseqnum++;
1417                         ppseudo_hdr->portsrc = 0;
1418                         /* Calculate new checksum */
1419                         ppseudo_hdr->checksum = *pmsg++;
1420                         for (i = 1; i < 7; i++) {
1421                                 ppseudo_hdr->checksum ^= *pmsg++;
1422                         }
1423
1424                         TempShortBuf[0] = 0;
1425                         TempShortBuf[1] = htons(len);
1426                         memcpy(&TempShortBuf[2], ppseudo_hdr, len);
1427
1428                         status =
1429                             ft1000_write_dpram32(dev, 0,
1430                                                  (u8 *) &TempShortBuf[0],
1431                                                  (unsigned short)(len + 2));
1432                         status =
1433                             ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
1434                                                   FT1000_REG_DOORBELL);
1435
1436                         list_del(&ptr->list);
1437                         kfree(ptr->pprov_data);
1438                         kfree(ptr);
1439                 }
1440                 msleep(10);
1441         }
1442
1443         DEBUG("DSP Provisioning List Entry finished\n");
1444
1445         msleep(100);
1446
1447         info->fProvComplete = 1;
1448         info->CardReady = 1;
1449
1450         return STATUS_SUCCESS;
1451 }
1452
1453 static int ft1000_proc_drvmsg(struct ft1000_device *dev, u16 size)
1454 {
1455         struct ft1000_info *info = netdev_priv(dev->net);
1456         u16 msgtype;
1457         u16 tempword;
1458         struct media_msg *pmediamsg;
1459         struct dsp_init_msg *pdspinitmsg;
1460         struct drv_msg *pdrvmsg;
1461         u16 i;
1462         struct pseudo_hdr *ppseudo_hdr;
1463         u16 *pmsg;
1464         u16 status;
1465         union {
1466                 u8 byte[2];
1467                 u16 wrd;
1468         } convert;
1469
1470         char *cmdbuffer = kmalloc(1600, GFP_KERNEL);
1471         if (!cmdbuffer)
1472                 return STATUS_FAILURE;
1473
1474         status = ft1000_read_dpram32(dev, 0x200, cmdbuffer, size);
1475
1476 #ifdef JDEBUG
1477         DEBUG("ft1000_proc_drvmsg:cmdbuffer\n");
1478         for (i = 0; i < size; i += 5) {
1479                 if ((i + 5) < size)
1480                         DEBUG("0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n", cmdbuffer[i],
1481                               cmdbuffer[i + 1], cmdbuffer[i + 2],
1482                               cmdbuffer[i + 3], cmdbuffer[i + 4]);
1483                 else {
1484                         for (j = i; j < size; j++)
1485                                 DEBUG("0x%x ", cmdbuffer[j]);
1486                         DEBUG("\n");
1487                         break;
1488                 }
1489         }
1490 #endif
1491         pdrvmsg = (struct drv_msg *)&cmdbuffer[2];
1492         msgtype = ntohs(pdrvmsg->type);
1493         DEBUG("ft1000_proc_drvmsg:Command message type = 0x%x\n", msgtype);
1494         switch (msgtype) {
1495         case MEDIA_STATE:{
1496                         DEBUG
1497                             ("ft1000_proc_drvmsg:Command message type = MEDIA_STATE");
1498
1499                         pmediamsg = (struct media_msg *)&cmdbuffer[0];
1500                         if (info->ProgConStat != 0xFF) {
1501                                 if (pmediamsg->state) {
1502                                         DEBUG("Media is up\n");
1503                                         if (info->mediastate == 0) {
1504                                                 if (info->NetDevRegDone) {
1505                                                         netif_wake_queue(dev->
1506                                                                          net);
1507                                                 }
1508                                                 info->mediastate = 1;
1509                                         }
1510                                 } else {
1511                                         DEBUG("Media is down\n");
1512                                         if (info->mediastate == 1) {
1513                                                 info->mediastate = 0;
1514                                                 if (info->NetDevRegDone) {
1515                                                 }
1516                                                 info->ConTm = 0;
1517                                         }
1518                                 }
1519                         } else {
1520                                 DEBUG("Media is down\n");
1521                                 if (info->mediastate == 1) {
1522                                         info->mediastate = 0;
1523                                         info->ConTm = 0;
1524                                 }
1525                         }
1526                         break;
1527                 }
1528         case DSP_INIT_MSG:{
1529                         DEBUG
1530                             ("ft1000_proc_drvmsg:Command message type = DSP_INIT_MSG");
1531
1532                         pdspinitmsg = (struct dsp_init_msg *)&cmdbuffer[2];
1533                         memcpy(info->DspVer, pdspinitmsg->DspVer, DSPVERSZ);
1534                         DEBUG("DSPVER = 0x%2x 0x%2x 0x%2x 0x%2x\n",
1535                               info->DspVer[0], info->DspVer[1], info->DspVer[2],
1536                               info->DspVer[3]);
1537                         memcpy(info->HwSerNum, pdspinitmsg->HwSerNum,
1538                                HWSERNUMSZ);
1539                         memcpy(info->Sku, pdspinitmsg->Sku, SKUSZ);
1540                         memcpy(info->eui64, pdspinitmsg->eui64, EUISZ);
1541                         DEBUG("EUI64=%2x.%2x.%2x.%2x.%2x.%2x.%2x.%2x\n",
1542                               info->eui64[0], info->eui64[1], info->eui64[2],
1543                               info->eui64[3], info->eui64[4], info->eui64[5],
1544                               info->eui64[6], info->eui64[7]);
1545                         dev->net->dev_addr[0] = info->eui64[0];
1546                         dev->net->dev_addr[1] = info->eui64[1];
1547                         dev->net->dev_addr[2] = info->eui64[2];
1548                         dev->net->dev_addr[3] = info->eui64[5];
1549                         dev->net->dev_addr[4] = info->eui64[6];
1550                         dev->net->dev_addr[5] = info->eui64[7];
1551
1552                         if (ntohs(pdspinitmsg->length) ==
1553                             (sizeof(struct dsp_init_msg) - 20)) {
1554                                 memcpy(info->ProductMode,
1555                                        pdspinitmsg->ProductMode, MODESZ);
1556                                 memcpy(info->RfCalVer, pdspinitmsg->RfCalVer,
1557                                        CALVERSZ);
1558                                 memcpy(info->RfCalDate, pdspinitmsg->RfCalDate,
1559                                        CALDATESZ);
1560                                 DEBUG("RFCalVer = 0x%2x 0x%2x\n",
1561                                       info->RfCalVer[0], info->RfCalVer[1]);
1562                         }
1563                         break;
1564                 }
1565         case DSP_PROVISION:{
1566                         DEBUG
1567                             ("ft1000_proc_drvmsg:Command message type = DSP_PROVISION\n");
1568
1569                         /* kick off dspprov routine to start provisioning
1570                          * Send provisioning data to DSP
1571                          */
1572                         if (list_empty(&info->prov_list) == 0) {
1573                                 info->fProvComplete = 0;
1574                                 status = ft1000_dsp_prov(dev);
1575                                 if (status != STATUS_SUCCESS)
1576                                         goto out;
1577                         } else {
1578                                 info->fProvComplete = 1;
1579                                 status =
1580                                     ft1000_write_register(dev, FT1000_DB_HB,
1581                                                           FT1000_REG_DOORBELL);
1582                                 DEBUG
1583                                     ("FT1000:drivermsg:No more DSP provisioning data in dsp image\n");
1584                         }
1585                         DEBUG("ft1000_proc_drvmsg:DSP PROVISION is done\n");
1586                         break;
1587                 }
1588         case DSP_STORE_INFO:{
1589                         DEBUG
1590                             ("ft1000_proc_drvmsg:Command message type = DSP_STORE_INFO");
1591
1592                         DEBUG("FT1000:drivermsg:Got DSP_STORE_INFO\n");
1593                         tempword = ntohs(pdrvmsg->length);
1594                         info->DSPInfoBlklen = tempword;
1595                         if (tempword < (MAX_DSP_SESS_REC - 4)) {
1596                                 pmsg = (u16 *) &pdrvmsg->data[0];
1597                                 for (i = 0; i < ((tempword + 1) / 2); i++) {
1598                                         DEBUG
1599                                             ("FT1000:drivermsg:dsp info data = 0x%x\n",
1600                                              *pmsg);
1601                                         info->DSPInfoBlk[i + 10] = *pmsg++;
1602                                 }
1603                         } else {
1604                                 info->DSPInfoBlklen = 0;
1605                         }
1606                         break;
1607                 }
1608         case DSP_GET_INFO:{
1609                         DEBUG("FT1000:drivermsg:Got DSP_GET_INFO\n");
1610                         /* copy dsp info block to dsp */
1611                         info->DrvMsgPend = 1;
1612                         /* allow any outstanding ioctl to finish */
1613                         mdelay(10);
1614                         status =
1615                             ft1000_read_register(dev, &tempword,
1616                                                  FT1000_REG_DOORBELL);
1617                         if (tempword & FT1000_DB_DPRAM_TX) {
1618                                 mdelay(10);
1619                                 status =
1620                                     ft1000_read_register(dev, &tempword,
1621                                                          FT1000_REG_DOORBELL);
1622                                 if (tempword & FT1000_DB_DPRAM_TX) {
1623                                         mdelay(10);
1624                                         status =
1625                                             ft1000_read_register(dev, &tempword,
1626                                                                  FT1000_REG_DOORBELL);
1627                                         if (tempword & FT1000_DB_DPRAM_TX)
1628                                                 break;
1629                                 }
1630                         }
1631                         /* Put message into Slow Queue
1632                          * Form Pseudo header
1633                          */
1634                         pmsg = (u16 *) info->DSPInfoBlk;
1635                         *pmsg++ = 0;
1636                         *pmsg++ =
1637                             htons(info->DSPInfoBlklen + 20 +
1638                                   info->DSPInfoBlklen);
1639                         ppseudo_hdr =
1640                             (struct pseudo_hdr *)(u16 *) &info->DSPInfoBlk[2];
1641                         ppseudo_hdr->length =
1642                             htons(info->DSPInfoBlklen + 4 +
1643                                   info->DSPInfoBlklen);
1644                         ppseudo_hdr->source = 0x10;
1645                         ppseudo_hdr->destination = 0x20;
1646                         ppseudo_hdr->portdest = 0;
1647                         ppseudo_hdr->portsrc = 0;
1648                         ppseudo_hdr->sh_str_id = 0;
1649                         ppseudo_hdr->control = 0;
1650                         ppseudo_hdr->rsvd1 = 0;
1651                         ppseudo_hdr->rsvd2 = 0;
1652                         ppseudo_hdr->qos_class = 0;
1653                         /* Insert slow queue sequence number */
1654                         ppseudo_hdr->seq_num = info->squeseqnum++;
1655                         /* Insert application id */
1656                         ppseudo_hdr->portsrc = 0;
1657                         /* Calculate new checksum */
1658                         ppseudo_hdr->checksum = *pmsg++;
1659                         for (i = 1; i < 7; i++)
1660                                 ppseudo_hdr->checksum ^= *pmsg++;
1661
1662                         info->DSPInfoBlk[10] = 0x7200;
1663                         info->DSPInfoBlk[11] = htons(info->DSPInfoBlklen);
1664                         status =
1665                             ft1000_write_dpram32(dev, 0,
1666                                                  (u8 *) &info->DSPInfoBlk[0],
1667                                                  (unsigned short)(info->
1668                                                                   DSPInfoBlklen
1669                                                                   + 22));
1670                         status =
1671                             ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
1672                                                   FT1000_REG_DOORBELL);
1673                         info->DrvMsgPend = 0;
1674
1675                         break;
1676                 }
1677
1678         case GET_DRV_ERR_RPT_MSG:{
1679                         DEBUG("FT1000:drivermsg:Got GET_DRV_ERR_RPT_MSG\n");
1680                         /* copy driver error message to dsp */
1681                         info->DrvMsgPend = 1;
1682                         /* allow any outstanding ioctl to finish */
1683                         mdelay(10);
1684                         status =
1685                             ft1000_read_register(dev, &tempword,
1686                                                  FT1000_REG_DOORBELL);
1687                         if (tempword & FT1000_DB_DPRAM_TX) {
1688                                 mdelay(10);
1689                                 status =
1690                                     ft1000_read_register(dev, &tempword,
1691                                                          FT1000_REG_DOORBELL);
1692                                 if (tempword & FT1000_DB_DPRAM_TX)
1693                                         mdelay(10);
1694                         }
1695
1696                         if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
1697                                 /* Put message into Slow Queue
1698                                  * Form Pseudo header
1699                                  */
1700                                 pmsg = (u16 *) &tempbuffer[0];
1701                                 ppseudo_hdr = (struct pseudo_hdr *)pmsg;
1702                                 ppseudo_hdr->length = htons(0x0012);
1703                                 ppseudo_hdr->source = 0x10;
1704                                 ppseudo_hdr->destination = 0x20;
1705                                 ppseudo_hdr->portdest = 0;
1706                                 ppseudo_hdr->portsrc = 0;
1707                                 ppseudo_hdr->sh_str_id = 0;
1708                                 ppseudo_hdr->control = 0;
1709                                 ppseudo_hdr->rsvd1 = 0;
1710                                 ppseudo_hdr->rsvd2 = 0;
1711                                 ppseudo_hdr->qos_class = 0;
1712                                 /* Insert slow queue sequence number */
1713                                 ppseudo_hdr->seq_num = info->squeseqnum++;
1714                                 /* Insert application id */
1715                                 ppseudo_hdr->portsrc = 0;
1716                                 /* Calculate new checksum */
1717                                 ppseudo_hdr->checksum = *pmsg++;
1718                                 for (i = 1; i < 7; i++)
1719                                         ppseudo_hdr->checksum ^= *pmsg++;
1720
1721                                 pmsg = (u16 *) &tempbuffer[16];
1722                                 *pmsg++ = htons(RSP_DRV_ERR_RPT_MSG);
1723                                 *pmsg++ = htons(0x000e);
1724                                 *pmsg++ = htons(info->DSP_TIME[0]);
1725                                 *pmsg++ = htons(info->DSP_TIME[1]);
1726                                 *pmsg++ = htons(info->DSP_TIME[2]);
1727                                 *pmsg++ = htons(info->DSP_TIME[3]);
1728                                 convert.byte[0] = info->DspVer[0];
1729                                 convert.byte[1] = info->DspVer[1];
1730                                 *pmsg++ = convert.wrd;
1731                                 convert.byte[0] = info->DspVer[2];
1732                                 convert.byte[1] = info->DspVer[3];
1733                                 *pmsg++ = convert.wrd;
1734                                 *pmsg++ = htons(info->DrvErrNum);
1735
1736                                 card_send_command(dev,
1737                                                  (unsigned char *)&tempbuffer[0],
1738                                                  (u16) (0x0012 + PSEUDOSZ));
1739                                 info->DrvErrNum = 0;
1740                         }
1741                         info->DrvMsgPend = 0;
1742
1743                         break;
1744                 }
1745
1746         default:
1747                 break;
1748         }
1749
1750         status = STATUS_SUCCESS;
1751 out:
1752         kfree(cmdbuffer);
1753         DEBUG("return from ft1000_proc_drvmsg\n");
1754         return status;
1755 }
1756
1757 int ft1000_poll(void* dev_id) {
1758
1759     struct ft1000_device *dev = (struct ft1000_device *)dev_id;
1760         struct ft1000_info *info = netdev_priv(dev->net);
1761
1762     u16 tempword;
1763     u16 status;
1764     u16 size;
1765     int i;
1766     u16 data;
1767     u16 modulo;
1768     u16 portid;
1769     u16 nxtph;
1770         struct dpram_blk *pdpram_blk;
1771         struct pseudo_hdr *ppseudo_hdr;
1772     unsigned long flags;
1773
1774     if (ft1000_chkcard(dev) == FALSE) {
1775         DEBUG("ft1000_poll::ft1000_chkcard: failed\n");
1776         return STATUS_FAILURE;
1777     }
1778
1779     status = ft1000_read_register (dev, &tempword, FT1000_REG_DOORBELL);
1780
1781     if ( !status )
1782     {
1783
1784         if (tempword & FT1000_DB_DPRAM_RX) {
1785
1786             status = ft1000_read_dpram16(dev, 0x200, (u8 *)&data, 0);
1787             size = ntohs(data) + 16 + 2;
1788             if (size % 4) {
1789                 modulo = 4 - (size % 4);
1790                 size = size + modulo;
1791             }
1792             status = ft1000_read_dpram16(dev, 0x201, (u8 *)&portid, 1);
1793             portid &= 0xff;
1794
1795             if (size < MAX_CMD_SQSIZE) {
1796                 switch (portid)
1797                 {
1798                     case DRIVERID:
1799                         DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type: FT1000_DB_DPRAM_RX : portid DRIVERID\n");
1800
1801                         status = ft1000_proc_drvmsg (dev, size);
1802                         if (status != STATUS_SUCCESS )
1803                             return status;
1804                         break;
1805                     case DSPBCMSGID:
1806                         // This is a dsp broadcast message
1807                         // Check which application has registered for dsp broadcast messages
1808
1809                         for (i=0; i<MAX_NUM_APP; i++) {
1810                            if ( (info->app_info[i].DspBCMsgFlag) && (info->app_info[i].fileobject) &&
1811                                          (info->app_info[i].NumOfMsg < MAX_MSG_LIMIT)  )
1812                            {
1813                                nxtph = FT1000_DPRAM_RX_BASE + 2;
1814                                pdpram_blk = ft1000_get_buffer (&freercvpool);
1815                                if (pdpram_blk != NULL) {
1816                                    if ( ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE, &nxtph) ) {
1817                                         ppseudo_hdr = (struct pseudo_hdr *)pdpram_blk->pbuffer;
1818                                        // Put message into the appropriate application block
1819                                        info->app_info[i].nRxMsg++;
1820                                        spin_lock_irqsave(&free_buff_lock, flags);
1821                                        list_add_tail(&pdpram_blk->list, &info->app_info[i].app_sqlist);
1822                                        info->app_info[i].NumOfMsg++;
1823                                        spin_unlock_irqrestore(&free_buff_lock, flags);
1824                                        wake_up_interruptible(&info->app_info[i].wait_dpram_msg);
1825                                    }
1826                                    else {
1827                                        info->app_info[i].nRxMsgMiss++;
1828                                        // Put memory back to free pool
1829                                        ft1000_free_buffer(pdpram_blk, &freercvpool);
1830                                        DEBUG("pdpram_blk::ft1000_get_buffer NULL\n");
1831                                    }
1832                                }
1833                                else {
1834                                    DEBUG("Out of memory in free receive command pool\n");
1835                                    info->app_info[i].nRxMsgMiss++;
1836                                }
1837                            }
1838                         }
1839                         break;
1840                     default:
1841                         pdpram_blk = ft1000_get_buffer (&freercvpool);
1842
1843                         if (pdpram_blk != NULL) {
1844                            if ( ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE, &nxtph) ) {
1845                                 ppseudo_hdr = (struct pseudo_hdr *)pdpram_blk->pbuffer;
1846                                // Search for correct application block
1847                                for (i=0; i<MAX_NUM_APP; i++) {
1848                                    if (info->app_info[i].app_id == ppseudo_hdr->portdest) {
1849                                        break;
1850                                    }
1851                                }
1852
1853                                if (i == MAX_NUM_APP) {
1854                                    DEBUG("FT1000:ft1000_parse_dpram_msg: No application matching id = %d\n", ppseudo_hdr->portdest);
1855                                    // Put memory back to free pool
1856                                    ft1000_free_buffer(pdpram_blk, &freercvpool);
1857                                }
1858                                else {
1859                                    if (info->app_info[i].NumOfMsg > MAX_MSG_LIMIT) {
1860                                        // Put memory back to free pool
1861                                        ft1000_free_buffer(pdpram_blk, &freercvpool);
1862                                    }
1863                                    else {
1864                                        info->app_info[i].nRxMsg++;
1865                                        // Put message into the appropriate application block
1866                                        list_add_tail(&pdpram_blk->list, &info->app_info[i].app_sqlist);
1867                                        info->app_info[i].NumOfMsg++;
1868                                    }
1869                                }
1870                            }
1871                            else {
1872                                // Put memory back to free pool
1873                                ft1000_free_buffer(pdpram_blk, &freercvpool);
1874                            }
1875                         }
1876                         else {
1877                             DEBUG("Out of memory in free receive command pool\n");
1878                         }
1879                         break;
1880                 }
1881             }
1882             else {
1883                 DEBUG("FT1000:dpc:Invalid total length for SlowQ = %d\n", size);
1884             }
1885             status = ft1000_write_register (dev, FT1000_DB_DPRAM_RX, FT1000_REG_DOORBELL);
1886         }
1887         else if (tempword & FT1000_DSP_ASIC_RESET) {
1888
1889             // Let's reset the ASIC from the Host side as well
1890             status = ft1000_write_register (dev, ASIC_RESET_BIT, FT1000_REG_RESET);
1891             status = ft1000_read_register (dev, &tempword, FT1000_REG_RESET);
1892             i = 0;
1893             while (tempword & ASIC_RESET_BIT) {
1894                 status = ft1000_read_register (dev, &tempword, FT1000_REG_RESET);
1895                 msleep(10);
1896                 i++;
1897                 if (i==100)
1898                     break;
1899             }
1900             if (i==100) {
1901                 DEBUG("Unable to reset ASIC\n");
1902                 return STATUS_SUCCESS;
1903             }
1904             msleep(10);
1905             // Program WMARK register
1906             status = ft1000_write_register (dev, 0x600, FT1000_REG_MAG_WATERMARK);
1907             // clear ASIC reset doorbell
1908             status = ft1000_write_register (dev, FT1000_DSP_ASIC_RESET, FT1000_REG_DOORBELL);
1909             msleep(10);
1910         }
1911         else if (tempword & FT1000_ASIC_RESET_REQ) {
1912             DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type:  FT1000_ASIC_RESET_REQ\n");
1913
1914             // clear ASIC reset request from DSP
1915             status = ft1000_write_register (dev, FT1000_ASIC_RESET_REQ, FT1000_REG_DOORBELL);
1916             status = ft1000_write_register (dev, HOST_INTF_BE, FT1000_REG_SUP_CTRL);
1917             // copy dsp session record from Adapter block
1918             status = ft1000_write_dpram32 (dev, 0, (u8 *)&info->DSPSess.Rec[0], 1024);
1919             // Program WMARK register
1920             status = ft1000_write_register (dev, 0x600, FT1000_REG_MAG_WATERMARK);
1921             // ring doorbell to tell DSP that ASIC is out of reset
1922             status = ft1000_write_register (dev, FT1000_ASIC_RESET_DSP, FT1000_REG_DOORBELL);
1923         }
1924         else if (tempword & FT1000_DB_COND_RESET) {
1925             DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type:  FT1000_DB_COND_RESET\n");
1926
1927             if (info->fAppMsgPend == 0) {
1928                // Reset ASIC and DSP
1929
1930                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER0, (u8 *)&(info->DSP_TIME[0]), FT1000_MAG_DSP_TIMER0_INDX);
1931                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER1, (u8 *)&(info->DSP_TIME[1]), FT1000_MAG_DSP_TIMER1_INDX);
1932                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER2, (u8 *)&(info->DSP_TIME[2]), FT1000_MAG_DSP_TIMER2_INDX);
1933                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER3, (u8 *)&(info->DSP_TIME[3]), FT1000_MAG_DSP_TIMER3_INDX);
1934                 info->CardReady = 0;
1935                 info->DrvErrNum = DSP_CONDRESET_INFO;
1936                 DEBUG("ft1000_hw:DSP conditional reset requested\n");
1937                 info->ft1000_reset(dev->net);
1938             }
1939             else {
1940                 info->fProvComplete = 0;
1941                 info->fCondResetPend = 1;
1942             }
1943
1944             ft1000_write_register(dev, FT1000_DB_COND_RESET, FT1000_REG_DOORBELL);
1945         }
1946
1947     }
1948
1949     return STATUS_SUCCESS;
1950
1951 }