drivers/scsi/sun_esp.c

   1 /* sun_esp.c: ESP front-end for Sparc SBUS systems.
   2  *
   3  * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net)
   4  */
   5
   6 #include <linux/kernel.h>
   7 #include <linux/types.h>
   8 #include <linux/delay.h>
   9 #include <linux/module.h>
  10 #include <linux/mm.h>
  11 #include <linux/init.h>
  12
  13 #include <asm/irq.h>
  14 #include <asm/io.h>
  15 #include <asm/dma.h>
  16
  17 #include <asm/sbus.h>
  18
  19 #include <scsi/scsi_host.h>
  20
  21 #include "esp_scsi.h"
  22
  23 #define DRV_MODULE_NAME         "sun_esp"
  24 #define PFX DRV_MODULE_NAME     ": "
  25 #define DRV_VERSION             "1.000"
  26 #define DRV_MODULE_RELDATE      "April 19, 2007"
  27
  28 #define dma_read32(REG) \
  29         sbus_readl(esp->dma_regs + (REG))
  30 #define dma_write32(VAL, REG) \
  31         sbus_writel((VAL), esp->dma_regs + (REG))
  32
  33 /* DVMA chip revisions */
  34 enum dvma_rev {
  35         dvmarev0,
  36         dvmaesc1,
  37         dvmarev1,
  38         dvmarev2,
  39         dvmarev3,
  40         dvmarevplus,
  41         dvmahme
  42 };
  43
  44 static int __devinit esp_sbus_setup_dma(struct esp *esp,
  45                                         struct of_device *dma_of)
  46 {
  47         esp->dma = dma_of;
  48
  49         esp->dma_regs = of_ioremap(&dma_of->resource[0], 0,
  50                                    resource_size(&dma_of->resource[0]),
  51                                    "espdma");
  52         if (!esp->dma_regs)
  53                 return -ENOMEM;
  54
  55         switch (dma_read32(DMA_CSR) & DMA_DEVICE_ID) {
  56         case DMA_VERS0:
  57                 esp->dmarev = dvmarev0;
  58                 break;
  59         case DMA_ESCV1:
  60                 esp->dmarev = dvmaesc1;
  61                 break;
  62         case DMA_VERS1:
  63                 esp->dmarev = dvmarev1;
  64                 break;
  65         case DMA_VERS2:
  66                 esp->dmarev = dvmarev2;
  67                 break;
  68         case DMA_VERHME:
  69                 esp->dmarev = dvmahme;
  70                 break;
  71         case DMA_VERSPLUS:
  72                 esp->dmarev = dvmarevplus;
  73                 break;
  74         }
  75
  76         return 0;
  77
  78 }
  79
  80 static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
  81 {
  82         struct sbus_dev *sdev = esp->dev;
  83         struct resource *res;
  84
  85         /* On HME, two reg sets exist, first is DVMA,
  86          * second is ESP registers.
  87          */
  88         if (hme)
  89                 res = &sdev->resource[1];
  90         else
  91                 res = &sdev->resource[0];
  92
  93         esp->regs = sbus_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
  94         if (!esp->regs)
  95                 return -ENOMEM;
  96
  97         return 0;
  98 }
  99
 100 static int __devinit esp_sbus_map_command_block(struct esp *esp)
 101 {
 102         struct sbus_dev *sdev = esp->dev;
 103
 104         esp->command_block = sbus_alloc_consistent(&sdev->ofdev.dev, 16,
 105                                                    &esp->command_block_dma);
 106         if (!esp->command_block)
 107                 return -ENOMEM;
 108         return 0;
 109 }
 110
 111 static int __devinit esp_sbus_register_irq(struct esp *esp)
 112 {
 113         struct Scsi_Host *host = esp->host;
 114         struct sbus_dev *sdev = esp->dev;
 115
 116         host->irq = sdev->irqs[0];
 117         return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
 118 }
 119
 120 static void __devinit esp_get_scsi_id(struct esp *esp)
 121 {
 122         struct sbus_dev *sdev = esp->dev;
 123         struct device_node *dp = sdev->ofdev.node;
 124
 125         esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
 126         if (esp->scsi_id != 0xff)
 127                 goto done;
 128
 129         esp->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", 0xff);
 130         if (esp->scsi_id != 0xff)
 131                 goto done;
 132
 133         if (!sdev->bus) {
 134                 /* SUN4 */
 135                 esp->scsi_id = 7;
 136                 goto done;
 137         }
 138
 139         esp->scsi_id = of_getintprop_default(sdev->bus->ofdev.node,
 140                                              "scsi-initiator-id", 7);
 141
 142 done:
 143         esp->host->this_id = esp->scsi_id;
 144         esp->scsi_id_mask = (1 << esp->scsi_id);
 145 }
 146
 147 static void __devinit esp_get_differential(struct esp *esp)
 148 {
 149         struct sbus_dev *sdev = esp->dev;
 150         struct device_node *dp = sdev->ofdev.node;
 151
 152         if (of_find_property(dp, "differential", NULL))
 153                 esp->flags |= ESP_FLAG_DIFFERENTIAL;
 154         else
 155                 esp->flags &= ~ESP_FLAG_DIFFERENTIAL;
 156 }
 157
 158 static void __devinit esp_get_clock_params(struct esp *esp)
 159 {
 160         struct sbus_dev *sdev = esp->dev;
 161         struct device_node *dp = sdev->ofdev.node;
 162         struct device_node *bus_dp;
 163         int fmhz;
 164
 165         bus_dp = NULL;
 166         if (sdev != NULL && sdev->bus != NULL)
 167                 bus_dp = sdev->bus->ofdev.node;
 168
 169         fmhz = of_getintprop_default(dp, "clock-frequency", 0);
 170         if (fmhz == 0)
 171                 fmhz = (!bus_dp) ? 0 :
 172                         of_getintprop_default(bus_dp, "clock-frequency", 0);
 173
 174         esp->cfreq = fmhz;
 175 }
 176
 177 static void __devinit esp_get_bursts(struct esp *esp, struct of_device *dma_of)
 178 {
 179         struct device_node *dma_dp = dma_of->node;
 180         struct sbus_dev *sdev = esp->dev;
 181         struct device_node *dp;
 182         u8 bursts, val;
 183
 184         dp = sdev->ofdev.node;
 185         bursts = of_getintprop_default(dp, "burst-sizes", 0xff);
 186         val = of_getintprop_default(dma_dp, "burst-sizes", 0xff);
 187         if (val != 0xff)
 188                 bursts &= val;
 189
 190         if (sdev->bus) {
 191                 u8 val = of_getintprop_default(sdev->bus->ofdev.node,
 192                                                "burst-sizes", 0xff);
 193                 if (val != 0xff)
 194                         bursts &= val;
 195         }
 196
 197         if (bursts == 0xff ||
 198             (bursts & DMA_BURST16) == 0 ||
 199             (bursts & DMA_BURST32) == 0)
 200                 bursts = (DMA_BURST32 - 1);
 201
 202         esp->bursts = bursts;
 203 }
 204
 205 static void __devinit esp_sbus_get_props(struct esp *esp, struct of_device *espdma)
 206 {
 207         esp_get_scsi_id(esp);
 208         esp_get_differential(esp);
 209         esp_get_clock_params(esp);
 210         esp_get_bursts(esp, espdma);
 211 }
 212
 213 static void sbus_esp_write8(struct esp *esp, u8 val, unsigned long reg)
 214 {
 215         sbus_writeb(val, esp->regs + (reg * 4UL));
 216 }
 217
 218 static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
 219 {
 220         return sbus_readb(esp->regs + (reg * 4UL));
 221 }
 222
 223 static dma_addr_t sbus_esp_map_single(struct esp *esp, void *buf,
 224                                       size_t sz, int dir)
 225 {
 226         struct sbus_dev *sdev = esp->dev;
 227
 228         return sbus_map_single(&sdev->ofdev.dev, buf, sz, dir);
 229 }
 230
 231 static int sbus_esp_map_sg(struct esp *esp, struct scatterlist *sg,
 232                                   int num_sg, int dir)
 233 {
 234         struct sbus_dev *sdev = esp->dev;
 235
 236         return sbus_map_sg(&sdev->ofdev.dev, sg, num_sg, dir);
 237 }
 238
 239 static void sbus_esp_unmap_single(struct esp *esp, dma_addr_t addr,
 240                                   size_t sz, int dir)
 241 {
 242         struct sbus_dev *sdev = esp->dev;
 243
 244         sbus_unmap_single(&sdev->ofdev.dev, addr, sz, dir);
 245 }
 246
 247 static void sbus_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,
 248                               int num_sg, int dir)
 249 {
 250         struct sbus_dev *sdev = esp->dev;
 251
 252         sbus_unmap_sg(&sdev->ofdev.dev, sg, num_sg, dir);
 253 }
 254
 255 static int sbus_esp_irq_pending(struct esp *esp)
 256 {
 257         if (dma_read32(DMA_CSR) & (DMA_HNDL_INTR | DMA_HNDL_ERROR))
 258                 return 1;
 259         return 0;
 260 }
 261
 262 static void sbus_esp_reset_dma(struct esp *esp)
 263 {
 264         int can_do_burst16, can_do_burst32, can_do_burst64;
 265         int can_do_sbus64, lim;
 266         u32 val;
 267
 268         can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
 269         can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
 270         can_do_burst64 = 0;
 271         can_do_sbus64 = 0;
 272         if (sbus_can_dma_64bit(esp->dev))
 273                 can_do_sbus64 = 1;
 274         if (sbus_can_burst64(esp->sdev))
 275                 can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
 276
 277         /* Put the DVMA into a known state. */
 278         if (esp->dmarev != dvmahme) {
 279                 val = dma_read32(DMA_CSR);
 280                 dma_write32(val | DMA_RST_SCSI, DMA_CSR);
 281                 dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
 282         }
 283         switch (esp->dmarev) {
 284         case dvmahme:
 285                 dma_write32(DMA_RESET_FAS366, DMA_CSR);
 286                 dma_write32(DMA_RST_SCSI, DMA_CSR);
 287
 288                 esp->prev_hme_dmacsr = (DMA_PARITY_OFF | DMA_2CLKS |
 289                                         DMA_SCSI_DISAB | DMA_INT_ENAB);
 290
 291                 esp->prev_hme_dmacsr &= ~(DMA_ENABLE | DMA_ST_WRITE |
 292                                           DMA_BRST_SZ);
 293
 294                 if (can_do_burst64)
 295                         esp->prev_hme_dmacsr |= DMA_BRST64;
 296                 else if (can_do_burst32)
 297                         esp->prev_hme_dmacsr |= DMA_BRST32;
 298
 299                 if (can_do_sbus64) {
 300                         esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
 301                         sbus_set_sbus64(esp->dev, esp->bursts);
 302                 }
 303
 304                 lim = 1000;
 305                 while (dma_read32(DMA_CSR) & DMA_PEND_READ) {
 306                         if (--lim == 0) {
 307                                 printk(KERN_ALERT PFX "esp%d: DMA_PEND_READ "
 308                                        "will not clear!\n",
 309                                        esp->host->unique_id);
 310                                 break;
 311                         }
 312                         udelay(1);
 313                 }
 314
 315                 dma_write32(0, DMA_CSR);
 316                 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
 317
 318                 dma_write32(0, DMA_ADDR);
 319                 break;
 320
 321         case dvmarev2:
 322                 if (esp->rev != ESP100) {
 323                         val = dma_read32(DMA_CSR);
 324                         dma_write32(val | DMA_3CLKS, DMA_CSR);
 325                 }
 326                 break;
 327
 328         case dvmarev3:
 329                 val = dma_read32(DMA_CSR);
 330                 val &= ~DMA_3CLKS;
 331                 val |= DMA_2CLKS;
 332                 if (can_do_burst32) {
 333                         val &= ~DMA_BRST_SZ;
 334                         val |= DMA_BRST32;
 335                 }
 336                 dma_write32(val, DMA_CSR);
 337                 break;
 338
 339         case dvmaesc1:
 340                 val = dma_read32(DMA_CSR);
 341                 val |= DMA_ADD_ENABLE;
 342                 val &= ~DMA_BCNT_ENAB;
 343                 if (!can_do_burst32 && can_do_burst16) {
 344                         val |= DMA_ESC_BURST;
 345                 } else {
 346                         val &= ~(DMA_ESC_BURST);
 347                 }
 348                 dma_write32(val, DMA_CSR);
 349                 break;
 350
 351         default:
 352                 break;
 353         }
 354
 355         /* Enable interrupts.  */
 356         val = dma_read32(DMA_CSR);
 357         dma_write32(val | DMA_INT_ENAB, DMA_CSR);
 358 }
 359
 360 static void sbus_esp_dma_drain(struct esp *esp)
 361 {
 362         u32 csr;
 363         int lim;
 364
 365         if (esp->dmarev == dvmahme)
 366                 return;
 367
 368         csr = dma_read32(DMA_CSR);
 369         if (!(csr & DMA_FIFO_ISDRAIN))
 370                 return;
 371
 372         if (esp->dmarev != dvmarev3 && esp->dmarev != dvmaesc1)
 373                 dma_write32(csr | DMA_FIFO_STDRAIN, DMA_CSR);
 374
 375         lim = 1000;
 376         while (dma_read32(DMA_CSR) & DMA_FIFO_ISDRAIN) {
 377                 if (--lim == 0) {
 378                         printk(KERN_ALERT PFX "esp%d: DMA will not drain!\n",
 379                                esp->host->unique_id);
 380                         break;
 381                 }
 382                 udelay(1);
 383         }
 384 }
 385
 386 static void sbus_esp_dma_invalidate(struct esp *esp)
 387 {
 388         if (esp->dmarev == dvmahme) {
 389                 dma_write32(DMA_RST_SCSI, DMA_CSR);
 390
 391                 esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
 392                                          (DMA_PARITY_OFF | DMA_2CLKS |
 393                                           DMA_SCSI_DISAB | DMA_INT_ENAB)) &
 394                                         ~(DMA_ST_WRITE | DMA_ENABLE));
 395
 396                 dma_write32(0, DMA_CSR);
 397                 dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
 398
 399                 /* This is necessary to avoid having the SCSI channel
 400                  * engine lock up on us.
 401                  */
 402                 dma_write32(0, DMA_ADDR);
 403         } else {
 404                 u32 val;
 405                 int lim;
 406
 407                 lim = 1000;
 408                 while ((val = dma_read32(DMA_CSR)) & DMA_PEND_READ) {
 409                         if (--lim == 0) {
 410                                 printk(KERN_ALERT PFX "esp%d: DMA will not "
 411                                        "invalidate!\n", esp->host->unique_id);
 412                                 break;
 413                         }
 414                         udelay(1);
 415                 }
 416
 417                 val &= ~(DMA_ENABLE | DMA_ST_WRITE | DMA_BCNT_ENAB);
 418                 val |= DMA_FIFO_INV;
 419                 dma_write32(val, DMA_CSR);
 420                 val &= ~DMA_FIFO_INV;
 421                 dma_write32(val, DMA_CSR);
 422         }
 423 }
 424
 425 static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
 426                                   u32 dma_count, int write, u8 cmd)
 427 {
 428         u32 csr;
 429
 430         BUG_ON(!(cmd & ESP_CMD_DMA));
 431
 432         sbus_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);
 433         sbus_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);
 434         if (esp->rev == FASHME) {
 435                 sbus_esp_write8(esp, (esp_count >> 16) & 0xff, FAS_RLO);
 436                 sbus_esp_write8(esp, 0, FAS_RHI);
 437
 438                 scsi_esp_cmd(esp, cmd);
 439
 440                 csr = esp->prev_hme_dmacsr;
 441                 csr |= DMA_SCSI_DISAB | DMA_ENABLE;
 442                 if (write)
 443                         csr |= DMA_ST_WRITE;
 444                 else
 445                         csr &= ~DMA_ST_WRITE;
 446                 esp->prev_hme_dmacsr = csr;
 447
 448                 dma_write32(dma_count, DMA_COUNT);
 449                 dma_write32(addr, DMA_ADDR);
 450                 dma_write32(csr, DMA_CSR);
 451         } else {
 452                 csr = dma_read32(DMA_CSR);
 453                 csr |= DMA_ENABLE;
 454                 if (write)
 455                         csr |= DMA_ST_WRITE;
 456                 else
 457                         csr &= ~DMA_ST_WRITE;
 458                 dma_write32(csr, DMA_CSR);
 459                 if (esp->dmarev == dvmaesc1) {
 460                         u32 end = PAGE_ALIGN(addr + dma_count + 16U);
 461                         dma_write32(end - addr, DMA_COUNT);
 462                 }
 463                 dma_write32(addr, DMA_ADDR);
 464
 465                 scsi_esp_cmd(esp, cmd);
 466         }
 467
 468 }
 469
 470 static int sbus_esp_dma_error(struct esp *esp)
 471 {
 472         u32 csr = dma_read32(DMA_CSR);
 473
 474         if (csr & DMA_HNDL_ERROR)
 475                 return 1;
 476
 477         return 0;
 478 }
 479
 480 static const struct esp_driver_ops sbus_esp_ops = {
 481         .esp_write8     =       sbus_esp_write8,
 482         .esp_read8      =       sbus_esp_read8,
 483         .map_single     =       sbus_esp_map_single,
 484         .map_sg         =       sbus_esp_map_sg,
 485         .unmap_single   =       sbus_esp_unmap_single,
 486         .unmap_sg       =       sbus_esp_unmap_sg,
 487         .irq_pending    =       sbus_esp_irq_pending,
 488         .reset_dma      =       sbus_esp_reset_dma,
 489         .dma_drain      =       sbus_esp_dma_drain,
 490         .dma_invalidate =       sbus_esp_dma_invalidate,
 491         .send_dma_cmd   =       sbus_esp_send_dma_cmd,
 492         .dma_error      =       sbus_esp_dma_error,
 493 };
 494
 495 static int __devinit esp_sbus_probe_one(struct device *dev,
 496                                         struct sbus_dev *esp_dev,
 497                                         struct of_device *espdma,
 498                                         struct sbus_bus *sbus,
 499                                         int hme)
 500 {
 501         struct scsi_host_template *tpnt = &scsi_esp_template;
 502         struct Scsi_Host *host;
 503         struct esp *esp;
 504         int err;
 505
 506         host = scsi_host_alloc(tpnt, sizeof(struct esp));
 507
 508         err = -ENOMEM;
 509         if (!host)
 510                 goto fail;
 511
 512         host->max_id = (hme ? 16 : 8);
 513         esp = shost_priv(host);
 514
 515         esp->host = host;
 516         esp->dev = esp_dev;
 517         esp->ops = &sbus_esp_ops;
 518
 519         if (hme)
 520                 esp->flags |= ESP_FLAG_WIDE_CAPABLE;
 521
 522         err = esp_sbus_setup_dma(esp, espdma);
 523         if (err < 0)
 524                 goto fail_unlink;
 525
 526         err = esp_sbus_map_regs(esp, hme);
 527         if (err < 0)
 528                 goto fail_unlink;
 529
 530         err = esp_sbus_map_command_block(esp);
 531         if (err < 0)
 532                 goto fail_unmap_regs;
 533
 534         err = esp_sbus_register_irq(esp);
 535         if (err < 0)
 536                 goto fail_unmap_command_block;
 537
 538         esp_sbus_get_props(esp, espdma);
 539
 540         /* Before we try to touch the ESP chip, ESC1 dma can
 541          * come up with the reset bit set, so make sure that
 542          * is clear first.
 543          */
 544         if (esp->dmarev == dvmaesc1) {
 545                 u32 val = dma_read32(DMA_CSR);
 546
 547                 dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
 548         }
 549
 550         dev_set_drvdata(&esp_dev->ofdev.dev, esp);
 551
 552         err = scsi_esp_register(esp, dev);
 553         if (err)
 554                 goto fail_free_irq;
 555
 556         return 0;
 557
 558 fail_free_irq:
 559         free_irq(host->irq, esp);
 560 fail_unmap_command_block:
 561         sbus_free_consistent(&esp_dev->ofdev.dev, 16,
 562                              esp->command_block,
 563                              esp->command_block_dma);
 564 fail_unmap_regs:
 565         sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
 566 fail_unlink:
 567         scsi_host_put(host);
 568 fail:
 569         return err;
 570 }
 571
 572 static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_device_id *match)
 573 {
 574         struct sbus_dev *sdev = to_sbus_device(&dev->dev);
 575         struct device_node *dma_node = NULL;
 576         struct device_node *dp = dev->node;
 577         struct of_device *dma_of = NULL;
 578         int hme = 0;
 579
 580         if (dp->parent &&
 581             (!strcmp(dp->parent->name, "espdma") ||
 582              !strcmp(dp->parent->name, "dma")))
 583                 dma_node = dp->parent;
 584         else if (!strcmp(dp->name, "SUNW,fas")) {
 585                 dma_node = sdev->ofdev.node;
 586                 hme = 1;
 587         }
 588         if (dma_node)
 589                 dma_of = of_find_device_by_node(dma_node);
 590         if (!dma_of)
 591                 return -ENODEV;
 592
 593         return esp_sbus_probe_one(&dev->dev, sdev, dma_of,
 594                                   sdev->bus, hme);
 595 }
 596
 597 static int __devexit esp_sbus_remove(struct of_device *dev)
 598 {
 599         struct esp *esp = dev_get_drvdata(&dev->dev);
 600         struct sbus_dev *sdev = esp->dev;
 601         struct of_device *dma_of = esp->dma;
 602         unsigned int irq = esp->host->irq;
 603         u32 val;
 604
 605         scsi_esp_unregister(esp);
 606
 607         /* Disable interrupts.  */
 608         val = dma_read32(DMA_CSR);
 609         dma_write32(val & ~DMA_INT_ENAB, DMA_CSR);
 610
 611         free_irq(irq, esp);
 612         sbus_free_consistent(&sdev->ofdev.dev, 16,
 613                              esp->command_block,
 614                              esp->command_block_dma);
 615         sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
 616         of_iounmap(&dma_of->resource[0], esp->dma_regs,
 617                    resource_size(&dma_of->resource[0]));
 618
 619         scsi_host_put(esp->host);
 620
 621         return 0;
 622 }
 623
 624 static struct of_device_id esp_match[] = {
 625         {
 626                 .name = "SUNW,esp",
 627         },
 628         {
 629                 .name = "SUNW,fas",
 630         },
 631         {
 632                 .name = "esp",
 633         },
 634         {},
 635 };
 636 MODULE_DEVICE_TABLE(of, esp_match);
 637
 638 static struct of_platform_driver esp_sbus_driver = {
 639         .name           = "esp",
 640         .match_table    = esp_match,
 641         .probe          = esp_sbus_probe,
 642         .remove         = __devexit_p(esp_sbus_remove),
 643 };
 644
 645 static int __init sunesp_init(void)
 646 {
 647         return of_register_driver(&esp_sbus_driver, &sbus_bus_type);
 648 }
 649
 650 static void __exit sunesp_exit(void)
 651 {
 652         of_unregister_driver(&esp_sbus_driver);
 653 }
 654
 655 MODULE_DESCRIPTION("Sun ESP SCSI driver");
 656 MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
 657 MODULE_LICENSE("GPL");
 658 MODULE_VERSION(DRV_VERSION);
 659
 660 module_init(sunesp_init);
 661 module_exit(sunesp_exit);