drivers/scsi/arm/eesox.c

   1 /*
   2  *  linux/drivers/acorn/scsi/eesox.c
   3  *
   4  *  Copyright (C) 1997-2005 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  This driver is based on experimentation.  Hence, it may have made
  11  *  assumptions about the particular card that I have available, and
  12  *  may not be reliable!
  13  *
  14  *  Changelog:
  15  *   01-10-1997 RMK             Created, READONLY version
  16  *   15-02-1998 RMK             READ/WRITE version
  17  *                              added DMA support and hardware definitions
  18  *   14-03-1998 RMK             Updated DMA support
  19  *                              Added terminator control
  20  *   15-04-1998 RMK             Only do PIO if FAS216 will allow it.
  21  *   27-06-1998 RMK             Changed asm/delay.h to linux/delay.h
  22  *   02-04-2000 RMK     0.0.3   Fixed NO_IRQ/NO_DMA problem, updated for new
  23  *                              error handling code.
  24  */
  25 #include <linux/module.h>
  26 #include <linux/blkdev.h>
  27 #include <linux/kernel.h>
  28 #include <linux/string.h>
  29 #include <linux/ioport.h>
  30 #include <linux/sched.h>
  31 #include <linux/proc_fs.h>
  32 #include <linux/delay.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/init.h>
  35 #include <linux/dma-mapping.h>
  36
  37 #include <asm/io.h>
  38 #include <asm/irq.h>
  39 #include <asm/dma.h>
  40 #include <asm/ecard.h>
  41 #include <asm/pgtable.h>
  42
  43 #include "../scsi.h"
  44 #include <scsi/scsi_host.h>
  45 #include "fas216.h"
  46 #include "scsi.h"
  47
  48 #include <scsi/scsicam.h>
  49
  50 #define EESOX_FAS216_OFFSET     0x3000
  51 #define EESOX_FAS216_SHIFT      5
  52
  53 #define EESOX_DMASTAT           0x2800
  54 #define EESOX_STAT_INTR         0x01
  55 #define EESOX_STAT_DMA          0x02
  56
  57 #define EESOX_CONTROL           0x2800
  58 #define EESOX_INTR_ENABLE       0x04
  59 #define EESOX_TERM_ENABLE       0x02
  60 #define EESOX_RESET             0x01
  61
  62 #define EESOX_DMADATA           0x3800
  63
  64 #define VERSION "1.10 (17/01/2003 2.5.59)"
  65
  66 /*
  67  * Use term=0,1,0,0,0 to turn terminators on/off
  68  */
  69 static int term[MAX_ECARDS] = { 1, 1, 1, 1, 1, 1, 1, 1 };
  70
  71 #define NR_SG   256
  72
  73 struct eesoxscsi_info {
  74         FAS216_Info             info;
  75         struct expansion_card   *ec;
  76         void __iomem            *base;
  77         void __iomem            *ctl_port;
  78         unsigned int            control;
  79         struct scatterlist      sg[NR_SG];      /* Scatter DMA list     */
  80 };
  81
  82 /* Prototype: void eesoxscsi_irqenable(ec, irqnr)
  83  * Purpose  : Enable interrupts on EESOX SCSI card
  84  * Params   : ec    - expansion card structure
  85  *          : irqnr - interrupt number
  86  */
  87 static void
  88 eesoxscsi_irqenable(struct expansion_card *ec, int irqnr)
  89 {
  90         struct eesoxscsi_info *info = (struct eesoxscsi_info *)ec->irq_data;
  91
  92         info->control |= EESOX_INTR_ENABLE;
  93
  94         writeb(info->control, info->ctl_port);
  95 }
  96
  97 /* Prototype: void eesoxscsi_irqdisable(ec, irqnr)
  98  * Purpose  : Disable interrupts on EESOX SCSI card
  99  * Params   : ec    - expansion card structure
 100  *          : irqnr - interrupt number
 101  */
 102 static void
 103 eesoxscsi_irqdisable(struct expansion_card *ec, int irqnr)
 104 {
 105         struct eesoxscsi_info *info = (struct eesoxscsi_info *)ec->irq_data;
 106
 107         info->control &= ~EESOX_INTR_ENABLE;
 108
 109         writeb(info->control, info->ctl_port);
 110 }
 111
 112 static const expansioncard_ops_t eesoxscsi_ops = {
 113         .irqenable      = eesoxscsi_irqenable,
 114         .irqdisable     = eesoxscsi_irqdisable,
 115 };
 116
 117 /* Prototype: void eesoxscsi_terminator_ctl(*host, on_off)
 118  * Purpose  : Turn the EESOX SCSI terminators on or off
 119  * Params   : host   - card to turn on/off
 120  *          : on_off - !0 to turn on, 0 to turn off
 121  */
 122 static void
 123 eesoxscsi_terminator_ctl(struct Scsi_Host *host, int on_off)
 124 {
 125         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 126         unsigned long flags;
 127
 128         spin_lock_irqsave(host->host_lock, flags);
 129         if (on_off)
 130                 info->control |= EESOX_TERM_ENABLE;
 131         else
 132                 info->control &= ~EESOX_TERM_ENABLE;
 133
 134         writeb(info->control, info->ctl_port);
 135         spin_unlock_irqrestore(host->host_lock, flags);
 136 }
 137
 138 /* Prototype: void eesoxscsi_intr(irq, *dev_id, *regs)
 139  * Purpose  : handle interrupts from EESOX SCSI card
 140  * Params   : irq    - interrupt number
 141  *            dev_id - user-defined (Scsi_Host structure)
 142  *            regs   - processor registers at interrupt
 143  */
 144 static irqreturn_t
 145 eesoxscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
 146 {
 147         struct eesoxscsi_info *info = dev_id;
 148
 149         return fas216_intr(&info->info);
 150 }
 151
 152 /* Prototype: fasdmatype_t eesoxscsi_dma_setup(host, SCpnt, direction, min_type)
 153  * Purpose  : initialises DMA/PIO
 154  * Params   : host      - host
 155  *            SCpnt     - command
 156  *            direction - DMA on to/off of card
 157  *            min_type  - minimum DMA support that we must have for this transfer
 158  * Returns  : type of transfer to be performed
 159  */
 160 static fasdmatype_t
 161 eesoxscsi_dma_setup(struct Scsi_Host *host, Scsi_Pointer *SCp,
 162                        fasdmadir_t direction, fasdmatype_t min_type)
 163 {
 164         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 165         struct device *dev = scsi_get_device(host);
 166         int dmach = info->info.scsi.dma;
 167
 168         if (dmach != NO_DMA &&
 169             (min_type == fasdma_real_all || SCp->this_residual >= 512)) {
 170                 int bufs, map_dir, dma_dir;
 171
 172                 bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG);
 173
 174                 if (direction == DMA_OUT)
 175                         map_dir = DMA_TO_DEVICE,
 176                         dma_dir = DMA_MODE_WRITE;
 177                 else
 178                         map_dir = DMA_FROM_DEVICE,
 179                         dma_dir = DMA_MODE_READ;
 180
 181                 dma_map_sg(dev, info->sg, bufs + 1, map_dir);
 182
 183                 disable_dma(dmach);
 184                 set_dma_sg(dmach, info->sg, bufs + 1);
 185                 set_dma_mode(dmach, dma_dir);
 186                 enable_dma(dmach);
 187                 return fasdma_real_all;
 188         }
 189         /*
 190          * We don't do DMA, we only do slow PIO
 191          *
 192          * Some day, we will do Pseudo DMA
 193          */
 194         return fasdma_pseudo;
 195 }
 196
 197 static void eesoxscsi_buffer_in(void *buf, int length, void __iomem *base)
 198 {
 199         const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
 200         const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
 201         const void __iomem *reg_dmadata = base + EESOX_DMADATA;
 202         const register unsigned long mask = 0xffff;
 203
 204         do {
 205                 unsigned int status;
 206
 207                 /*
 208                  * Interrupt request?
 209                  */
 210                 status = readb(reg_fas + (REG_STAT << EESOX_FAS216_SHIFT));
 211                 if (status & STAT_INT)
 212                         break;
 213
 214                 /*
 215                  * DMA request active?
 216                  */
 217                 status = readb(reg_dmastat);
 218                 if (!(status & EESOX_STAT_DMA))
 219                         continue;
 220
 221                 /*
 222                  * Get number of bytes in FIFO
 223                  */
 224                 status = readb(reg_fas + (REG_CFIS << EESOX_FAS216_SHIFT)) & CFIS_CF;
 225                 if (status > 16)
 226                         status = 16;
 227                 if (status > length)
 228                         status = length;
 229
 230                 /*
 231                  * Align buffer.
 232                  */
 233                 if (((u32)buf) & 2 && status >= 2) {
 234                         *(u16 *)buf = readl(reg_dmadata);
 235                         buf += 2;
 236                         status -= 2;
 237                         length -= 2;
 238                 }
 239
 240                 if (status >= 8) {
 241                         unsigned long l1, l2;
 242
 243                         l1 = readl(reg_dmadata) & mask;
 244                         l1 |= readl(reg_dmadata) << 16;
 245                         l2 = readl(reg_dmadata) & mask;
 246                         l2 |= readl(reg_dmadata) << 16;
 247                         *(u32 *)buf = l1;
 248                         buf += 4;
 249                         *(u32 *)buf = l2;
 250                         buf += 4;
 251                         length -= 8;
 252                         continue;
 253                 }
 254
 255                 if (status >= 4) {
 256                         unsigned long l1;
 257
 258                         l1 = readl(reg_dmadata) & mask;
 259                         l1 |= readl(reg_dmadata) << 16;
 260
 261                         *(u32 *)buf = l1;
 262                         buf += 4;
 263                         length -= 4;
 264                         continue;
 265                 }
 266
 267                 if (status >= 2) {
 268                         *(u16 *)buf = readl(reg_dmadata);
 269                         buf += 2;
 270                         length -= 2;
 271                 }
 272         } while (length);
 273 }
 274
 275 static void eesoxscsi_buffer_out(void *buf, int length, void __iomem *base)
 276 {
 277         const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
 278         const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
 279         const void __iomem *reg_dmadata = base + EESOX_DMADATA;
 280
 281         do {
 282                 unsigned int status;
 283
 284                 /*
 285                  * Interrupt request?
 286                  */
 287                 status = readb(reg_fas + (REG_STAT << EESOX_FAS216_SHIFT));
 288                 if (status & STAT_INT)
 289                         break;
 290
 291                 /*
 292                  * DMA request active?
 293                  */
 294                 status = readb(reg_dmastat);
 295                 if (!(status & EESOX_STAT_DMA))
 296                         continue;
 297
 298                 /*
 299                  * Get number of bytes in FIFO
 300                  */
 301                 status = readb(reg_fas + (REG_CFIS << EESOX_FAS216_SHIFT)) & CFIS_CF;
 302                 if (status > 16)
 303                         status = 16;
 304                 status = 16 - status;
 305                 if (status > length)
 306                         status = length;
 307                 status &= ~1;
 308
 309                 /*
 310                  * Align buffer.
 311                  */
 312                 if (((u32)buf) & 2 && status >= 2) {
 313                         writel(*(u16 *)buf << 16, reg_dmadata);
 314                         buf += 2;
 315                         status -= 2;
 316                         length -= 2;
 317                 }
 318
 319                 if (status >= 8) {
 320                         unsigned long l1, l2;
 321
 322                         l1 = *(u32 *)buf;
 323                         buf += 4;
 324                         l2 = *(u32 *)buf;
 325                         buf += 4;
 326
 327                         writel(l1 << 16, reg_dmadata);
 328                         writel(l1, reg_dmadata);
 329                         writel(l2 << 16, reg_dmadata);
 330                         writel(l2, reg_dmadata);
 331                         length -= 8;
 332                         continue;
 333                 }
 334
 335                 if (status >= 4) {
 336                         unsigned long l1;
 337
 338                         l1 = *(u32 *)buf;
 339                         buf += 4;
 340
 341                         writel(l1 << 16, reg_dmadata);
 342                         writel(l1, reg_dmadata);
 343                         length -= 4;
 344                         continue;
 345                 }
 346
 347                 if (status >= 2) {
 348                         writel(*(u16 *)buf << 16, reg_dmadata);
 349                         buf += 2;
 350                         length -= 2;
 351                 }
 352         } while (length);
 353 }
 354
 355 static void
 356 eesoxscsi_dma_pseudo(struct Scsi_Host *host, Scsi_Pointer *SCp,
 357                      fasdmadir_t dir, int transfer_size)
 358 {
 359         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 360         if (dir == DMA_IN) {
 361                 eesoxscsi_buffer_in(SCp->ptr, SCp->this_residual, info->base);
 362         } else {
 363                 eesoxscsi_buffer_out(SCp->ptr, SCp->this_residual, info->base);
 364         }
 365 }
 366
 367 /* Prototype: int eesoxscsi_dma_stop(host, SCpnt)
 368  * Purpose  : stops DMA/PIO
 369  * Params   : host  - host
 370  *            SCpnt - command
 371  */
 372 static void
 373 eesoxscsi_dma_stop(struct Scsi_Host *host, Scsi_Pointer *SCp)
 374 {
 375         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 376         if (info->info.scsi.dma != NO_DMA)
 377                 disable_dma(info->info.scsi.dma);
 378 }
 379
 380 /* Prototype: const char *eesoxscsi_info(struct Scsi_Host * host)
 381  * Purpose  : returns a descriptive string about this interface,
 382  * Params   : host - driver host structure to return info for.
 383  * Returns  : pointer to a static buffer containing null terminated string.
 384  */
 385 const char *eesoxscsi_info(struct Scsi_Host *host)
 386 {
 387         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 388         static char string[150];
 389
 390         sprintf(string, "%s (%s) in slot %d v%s terminators o%s",
 391                 host->hostt->name, info->info.scsi.type, info->ec->slot_no,
 392                 VERSION, info->control & EESOX_TERM_ENABLE ? "n" : "ff");
 393
 394         return string;
 395 }
 396
 397 /* Prototype: int eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
 398  * Purpose  : Set a driver specific function
 399  * Params   : host   - host to setup
 400  *          : buffer - buffer containing string describing operation
 401  *          : length - length of string
 402  * Returns  : -EINVAL, or 0
 403  */
 404 static int
 405 eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
 406 {
 407         int ret = length;
 408
 409         if (length >= 9 && strncmp(buffer, "EESOXSCSI", 9) == 0) {
 410                 buffer += 9;
 411                 length -= 9;
 412
 413                 if (length >= 5 && strncmp(buffer, "term=", 5) == 0) {
 414                         if (buffer[5] == '1')
 415                                 eesoxscsi_terminator_ctl(host, 1);
 416                         else if (buffer[5] == '0')
 417                                 eesoxscsi_terminator_ctl(host, 0);
 418                         else
 419                                 ret = -EINVAL;
 420                 } else
 421                         ret = -EINVAL;
 422         } else
 423                 ret = -EINVAL;
 424
 425         return ret;
 426 }
 427
 428 /* Prototype: int eesoxscsi_proc_info(char *buffer, char **start, off_t offset,
 429  *                                    int length, int host_no, int inout)
 430  * Purpose  : Return information about the driver to a user process accessing
 431  *            the /proc filesystem.
 432  * Params   : buffer - a buffer to write information to
 433  *            start  - a pointer into this buffer set by this routine to the start
 434  *                     of the required information.
 435  *            offset - offset into information that we have read upto.
 436  *            length - length of buffer
 437  *            host_no - host number to return information for
 438  *            inout  - 0 for reading, 1 for writing.
 439  * Returns  : length of data written to buffer.
 440  */
 441 int eesoxscsi_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
 442                             int length, int inout)
 443 {
 444         struct eesoxscsi_info *info;
 445         char *p = buffer;
 446         int pos;
 447
 448         if (inout == 1)
 449                 return eesoxscsi_set_proc_info(host, buffer, length);
 450
 451         info = (struct eesoxscsi_info *)host->hostdata;
 452
 453         p += sprintf(p, "EESOX SCSI driver v%s\n", VERSION);
 454         p += fas216_print_host(&info->info, p);
 455         p += sprintf(p, "Term    : o%s\n",
 456                         info->control & EESOX_TERM_ENABLE ? "n" : "ff");
 457
 458         p += fas216_print_stats(&info->info, p);
 459         p += fas216_print_devices(&info->info, p);
 460
 461         *start = buffer + offset;
 462         pos = p - buffer - offset;
 463         if (pos > length)
 464                 pos = length;
 465
 466         return pos;
 467 }
 468
 469 static ssize_t eesoxscsi_show_term(struct device *dev, struct device_attribute *attr, char *buf)
 470 {
 471         struct expansion_card *ec = ECARD_DEV(dev);
 472         struct Scsi_Host *host = ecard_get_drvdata(ec);
 473         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 474
 475         return sprintf(buf, "%d\n", info->control & EESOX_TERM_ENABLE ? 1 : 0);
 476 }
 477
 478 static ssize_t eesoxscsi_store_term(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
 479 {
 480         struct expansion_card *ec = ECARD_DEV(dev);
 481         struct Scsi_Host *host = ecard_get_drvdata(ec);
 482         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 483         unsigned long flags;
 484
 485         if (len > 1) {
 486                 spin_lock_irqsave(host->host_lock, flags);
 487                 if (buf[0] != '0') {
 488                         info->control |= EESOX_TERM_ENABLE;
 489                 } else {
 490                         info->control &= ~EESOX_TERM_ENABLE;
 491                 }
 492                 writeb(info->control, info->ctl_port);
 493                 spin_unlock_irqrestore(host->host_lock, flags);
 494         }
 495
 496         return len;
 497 }
 498
 499 static DEVICE_ATTR(bus_term, S_IRUGO | S_IWUSR,
 500                    eesoxscsi_show_term, eesoxscsi_store_term);
 501
 502 static Scsi_Host_Template eesox_template = {
 503         .module                         = THIS_MODULE,
 504         .proc_info                      = eesoxscsi_proc_info,
 505         .name                           = "EESOX SCSI",
 506         .info                           = eesoxscsi_info,
 507         .queuecommand                   = fas216_queue_command,
 508         .eh_host_reset_handler          = fas216_eh_host_reset,
 509         .eh_bus_reset_handler           = fas216_eh_bus_reset,
 510         .eh_device_reset_handler        = fas216_eh_device_reset,
 511         .eh_abort_handler               = fas216_eh_abort,
 512         .can_queue                      = 1,
 513         .this_id                        = 7,
 514         .sg_tablesize                   = SG_ALL,
 515         .cmd_per_lun                    = 1,
 516         .use_clustering                 = DISABLE_CLUSTERING,
 517         .proc_name                      = "eesox",
 518 };
 519
 520 static int __devinit
 521 eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 522 {
 523         struct Scsi_Host *host;
 524         struct eesoxscsi_info *info;
 525         unsigned long resbase, reslen;
 526         void __iomem *base;
 527         int ret;
 528
 529         ret = ecard_request_resources(ec);
 530         if (ret)
 531                 goto out;
 532
 533         resbase = ecard_resource_start(ec, ECARD_RES_IOCFAST);
 534         reslen = ecard_resource_len(ec, ECARD_RES_IOCFAST);
 535         base = ioremap(resbase, reslen);
 536         if (!base) {
 537                 ret = -ENOMEM;
 538                 goto out_region;
 539         }
 540
 541         host = scsi_host_alloc(&eesox_template,
 542                                sizeof(struct eesoxscsi_info));
 543         if (!host) {
 544                 ret = -ENOMEM;
 545                 goto out_unmap;
 546         }
 547
 548         ecard_set_drvdata(ec, host);
 549
 550         info = (struct eesoxscsi_info *)host->hostdata;
 551         info->ec        = ec;
 552         info->base      = base;
 553         info->ctl_port  = base + EESOX_CONTROL;
 554         info->control   = term[ec->slot_no] ? EESOX_TERM_ENABLE : 0;
 555         writeb(info->control, info->ctl_port);
 556
 557         info->info.scsi.io_base         = base + EESOX_FAS216_OFFSET;
 558         info->info.scsi.io_shift        = EESOX_FAS216_SHIFT;
 559         info->info.scsi.irq             = ec->irq;
 560         info->info.scsi.dma             = ec->dma;
 561         info->info.ifcfg.clockrate      = 40; /* MHz */
 562         info->info.ifcfg.select_timeout = 255;
 563         info->info.ifcfg.asyncperiod    = 200; /* ns */
 564         info->info.ifcfg.sync_max_depth = 7;
 565         info->info.ifcfg.cntl3          = CNTL3_FASTSCSI | CNTL3_FASTCLK;
 566         info->info.ifcfg.disconnect_ok  = 1;
 567         info->info.ifcfg.wide_max_size  = 0;
 568         info->info.ifcfg.capabilities   = FASCAP_PSEUDODMA;
 569         info->info.dma.setup            = eesoxscsi_dma_setup;
 570         info->info.dma.pseudo           = eesoxscsi_dma_pseudo;
 571         info->info.dma.stop             = eesoxscsi_dma_stop;
 572
 573         ec->irqaddr     = base + EESOX_DMASTAT;
 574         ec->irqmask     = EESOX_STAT_INTR;
 575         ec->irq_data    = info;
 576         ec->ops         = &eesoxscsi_ops;
 577
 578         device_create_file(&ec->dev, &dev_attr_bus_term);
 579
 580         ret = fas216_init(host);
 581         if (ret)
 582                 goto out_free;
 583
 584         ret = request_irq(ec->irq, eesoxscsi_intr, 0, "eesoxscsi", info);
 585         if (ret) {
 586                 printk("scsi%d: IRQ%d not free: %d\n",
 587                        host->host_no, ec->irq, ret);
 588                 goto out_remove;
 589         }
 590
 591         if (info->info.scsi.dma != NO_DMA) {
 592                 if (request_dma(info->info.scsi.dma, "eesox")) {
 593                         printk("scsi%d: DMA%d not free, DMA disabled\n",
 594                                host->host_no, info->info.scsi.dma);
 595                         info->info.scsi.dma = NO_DMA;
 596                 } else {
 597                         set_dma_speed(info->info.scsi.dma, 180);
 598                         info->info.ifcfg.capabilities |= FASCAP_DMA;
 599                         info->info.ifcfg.cntl3 |= CNTL3_BS8;
 600                 }
 601         }
 602
 603         ret = fas216_add(host, &ec->dev);
 604         if (ret == 0)
 605                 goto out;
 606
 607         if (info->info.scsi.dma != NO_DMA)
 608                 free_dma(info->info.scsi.dma);
 609         free_irq(ec->irq, host);
 610
 611  out_remove:
 612         fas216_remove(host);
 613
 614  out_free:
 615         device_remove_file(&ec->dev, &dev_attr_bus_term);
 616         scsi_host_put(host);
 617
 618  out_unmap:
 619         iounmap(base);
 620
 621  out_region:
 622         ecard_release_resources(ec);
 623
 624  out:
 625         return ret;
 626 }
 627
 628 static void __devexit eesoxscsi_remove(struct expansion_card *ec)
 629 {
 630         struct Scsi_Host *host = ecard_get_drvdata(ec);
 631         struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
 632
 633         ecard_set_drvdata(ec, NULL);
 634         fas216_remove(host);
 635
 636         if (info->info.scsi.dma != NO_DMA)
 637                 free_dma(info->info.scsi.dma);
 638         free_irq(ec->irq, info);
 639
 640         device_remove_file(&ec->dev, &dev_attr_bus_term);
 641
 642         iounmap(info->base);
 643
 644         fas216_release(host);
 645         scsi_host_put(host);
 646         ecard_release_resources(ec);
 647 }
 648
 649 static const struct ecard_id eesoxscsi_cids[] = {
 650         { MANU_EESOX, PROD_EESOX_SCSI2 },
 651         { 0xffff, 0xffff },
 652 };
 653
 654 static struct ecard_driver eesoxscsi_driver = {
 655         .probe          = eesoxscsi_probe,
 656         .remove         = __devexit_p(eesoxscsi_remove),
 657         .id_table       = eesoxscsi_cids,
 658         .drv = {
 659                 .name           = "eesoxscsi",
 660         },
 661 };
 662
 663 static int __init eesox_init(void)
 664 {
 665         return ecard_register_driver(&eesoxscsi_driver);
 666 }
 667
 668 static void __exit eesox_exit(void)
 669 {
 670         ecard_remove_driver(&eesoxscsi_driver);
 671 }
 672
 673 module_init(eesox_init);
 674 module_exit(eesox_exit);
 675
 676 MODULE_AUTHOR("Russell King");
 677 MODULE_DESCRIPTION("EESOX 'Fast' SCSI driver for Acorn machines");
 678 MODULE_PARM(term, "1-8i");
 679 MODULE_PARM_DESC(term, "SCSI bus termination");
 680 MODULE_LICENSE("GPL");