xref: /openbmc/linux/drivers/scsi/arm/eesox.c (revision b6dcefde)
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/proc_fs.h>
31 #include <linux/delay.h>
32 #include <linux/interrupt.h>
33 #include <linux/init.h>
34 #include <linux/dma-mapping.h>
35 
36 #include <asm/io.h>
37 #include <asm/dma.h>
38 #include <asm/ecard.h>
39 #include <asm/pgtable.h>
40 
41 #include "../scsi.h"
42 #include <scsi/scsi_host.h>
43 #include "fas216.h"
44 #include "scsi.h"
45 
46 #include <scsi/scsicam.h>
47 
48 #define EESOX_FAS216_OFFSET	0x3000
49 #define EESOX_FAS216_SHIFT	5
50 
51 #define EESOX_DMASTAT		0x2800
52 #define EESOX_STAT_INTR		0x01
53 #define EESOX_STAT_DMA		0x02
54 
55 #define EESOX_CONTROL		0x2800
56 #define EESOX_INTR_ENABLE	0x04
57 #define EESOX_TERM_ENABLE	0x02
58 #define EESOX_RESET		0x01
59 
60 #define EESOX_DMADATA		0x3800
61 
62 #define VERSION "1.10 (17/01/2003 2.5.59)"
63 
64 /*
65  * Use term=0,1,0,0,0 to turn terminators on/off
66  */
67 static int term[MAX_ECARDS] = { 1, 1, 1, 1, 1, 1, 1, 1 };
68 
69 #define NR_SG	256
70 
71 struct eesoxscsi_info {
72 	FAS216_Info		info;
73 	struct expansion_card	*ec;
74 	void __iomem		*base;
75 	void __iomem		*ctl_port;
76 	unsigned int		control;
77 	struct scatterlist	sg[NR_SG];	/* Scatter DMA list	*/
78 };
79 
80 /* Prototype: void eesoxscsi_irqenable(ec, irqnr)
81  * Purpose  : Enable interrupts on EESOX SCSI card
82  * Params   : ec    - expansion card structure
83  *          : irqnr - interrupt number
84  */
85 static void
86 eesoxscsi_irqenable(struct expansion_card *ec, int irqnr)
87 {
88 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)ec->irq_data;
89 
90 	info->control |= EESOX_INTR_ENABLE;
91 
92 	writeb(info->control, info->ctl_port);
93 }
94 
95 /* Prototype: void eesoxscsi_irqdisable(ec, irqnr)
96  * Purpose  : Disable interrupts on EESOX SCSI card
97  * Params   : ec    - expansion card structure
98  *          : irqnr - interrupt number
99  */
100 static void
101 eesoxscsi_irqdisable(struct expansion_card *ec, int irqnr)
102 {
103 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)ec->irq_data;
104 
105 	info->control &= ~EESOX_INTR_ENABLE;
106 
107 	writeb(info->control, info->ctl_port);
108 }
109 
110 static const expansioncard_ops_t eesoxscsi_ops = {
111 	.irqenable	= eesoxscsi_irqenable,
112 	.irqdisable	= eesoxscsi_irqdisable,
113 };
114 
115 /* Prototype: void eesoxscsi_terminator_ctl(*host, on_off)
116  * Purpose  : Turn the EESOX SCSI terminators on or off
117  * Params   : host   - card to turn on/off
118  *          : on_off - !0 to turn on, 0 to turn off
119  */
120 static void
121 eesoxscsi_terminator_ctl(struct Scsi_Host *host, int on_off)
122 {
123 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
124 	unsigned long flags;
125 
126 	spin_lock_irqsave(host->host_lock, flags);
127 	if (on_off)
128 		info->control |= EESOX_TERM_ENABLE;
129 	else
130 		info->control &= ~EESOX_TERM_ENABLE;
131 
132 	writeb(info->control, info->ctl_port);
133 	spin_unlock_irqrestore(host->host_lock, flags);
134 }
135 
136 /* Prototype: void eesoxscsi_intr(irq, *dev_id, *regs)
137  * Purpose  : handle interrupts from EESOX SCSI card
138  * Params   : irq    - interrupt number
139  *	      dev_id - user-defined (Scsi_Host structure)
140  */
141 static irqreturn_t
142 eesoxscsi_intr(int irq, void *dev_id)
143 {
144 	struct eesoxscsi_info *info = dev_id;
145 
146 	return fas216_intr(&info->info);
147 }
148 
149 /* Prototype: fasdmatype_t eesoxscsi_dma_setup(host, SCpnt, direction, min_type)
150  * Purpose  : initialises DMA/PIO
151  * Params   : host      - host
152  *	      SCpnt     - command
153  *	      direction - DMA on to/off of card
154  *	      min_type  - minimum DMA support that we must have for this transfer
155  * Returns  : type of transfer to be performed
156  */
157 static fasdmatype_t
158 eesoxscsi_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp,
159 		       fasdmadir_t direction, fasdmatype_t min_type)
160 {
161 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
162 	struct device *dev = scsi_get_device(host);
163 	int dmach = info->info.scsi.dma;
164 
165 	if (dmach != NO_DMA &&
166 	    (min_type == fasdma_real_all || SCp->this_residual >= 512)) {
167 		int bufs, map_dir, dma_dir;
168 
169 		bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG);
170 
171 		if (direction == DMA_OUT)
172 			map_dir = DMA_TO_DEVICE,
173 			dma_dir = DMA_MODE_WRITE;
174 		else
175 			map_dir = DMA_FROM_DEVICE,
176 			dma_dir = DMA_MODE_READ;
177 
178 		dma_map_sg(dev, info->sg, bufs, map_dir);
179 
180 		disable_dma(dmach);
181 		set_dma_sg(dmach, info->sg, bufs);
182 		set_dma_mode(dmach, dma_dir);
183 		enable_dma(dmach);
184 		return fasdma_real_all;
185 	}
186 	/*
187 	 * We don't do DMA, we only do slow PIO
188 	 *
189 	 * Some day, we will do Pseudo DMA
190 	 */
191 	return fasdma_pseudo;
192 }
193 
194 static void eesoxscsi_buffer_in(void *buf, int length, void __iomem *base)
195 {
196 	const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
197 	const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
198 	const void __iomem *reg_dmadata = base + EESOX_DMADATA;
199 	register const unsigned long mask = 0xffff;
200 
201 	do {
202 		unsigned int status;
203 
204 		/*
205 		 * Interrupt request?
206 		 */
207 		status = readb(reg_fas + (REG_STAT << EESOX_FAS216_SHIFT));
208 		if (status & STAT_INT)
209 			break;
210 
211 		/*
212 		 * DMA request active?
213 		 */
214 		status = readb(reg_dmastat);
215 		if (!(status & EESOX_STAT_DMA))
216 			continue;
217 
218 		/*
219 		 * Get number of bytes in FIFO
220 		 */
221 		status = readb(reg_fas + (REG_CFIS << EESOX_FAS216_SHIFT)) & CFIS_CF;
222 		if (status > 16)
223 			status = 16;
224 		if (status > length)
225 			status = length;
226 
227 		/*
228 		 * Align buffer.
229 		 */
230 		if (((u32)buf) & 2 && status >= 2) {
231 			*(u16 *)buf = readl(reg_dmadata);
232 			buf += 2;
233 			status -= 2;
234 			length -= 2;
235 		}
236 
237 		if (status >= 8) {
238 			unsigned long l1, l2;
239 
240 			l1 = readl(reg_dmadata) & mask;
241 			l1 |= readl(reg_dmadata) << 16;
242 			l2 = readl(reg_dmadata) & mask;
243 			l2 |= readl(reg_dmadata) << 16;
244 			*(u32 *)buf = l1;
245 			buf += 4;
246 			*(u32 *)buf = l2;
247 			buf += 4;
248 			length -= 8;
249 			continue;
250 		}
251 
252 		if (status >= 4) {
253 			unsigned long l1;
254 
255 			l1 = readl(reg_dmadata) & mask;
256 			l1 |= readl(reg_dmadata) << 16;
257 
258 			*(u32 *)buf = l1;
259 			buf += 4;
260 			length -= 4;
261 			continue;
262 		}
263 
264 		if (status >= 2) {
265 			*(u16 *)buf = readl(reg_dmadata);
266 			buf += 2;
267 			length -= 2;
268 		}
269 	} while (length);
270 }
271 
272 static void eesoxscsi_buffer_out(void *buf, int length, void __iomem *base)
273 {
274 	const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
275 	const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
276 	const void __iomem *reg_dmadata = base + EESOX_DMADATA;
277 
278 	do {
279 		unsigned int status;
280 
281 		/*
282 		 * Interrupt request?
283 		 */
284 		status = readb(reg_fas + (REG_STAT << EESOX_FAS216_SHIFT));
285 		if (status & STAT_INT)
286 			break;
287 
288 		/*
289 		 * DMA request active?
290 		 */
291 		status = readb(reg_dmastat);
292 		if (!(status & EESOX_STAT_DMA))
293 			continue;
294 
295 		/*
296 		 * Get number of bytes in FIFO
297 		 */
298 		status = readb(reg_fas + (REG_CFIS << EESOX_FAS216_SHIFT)) & CFIS_CF;
299 		if (status > 16)
300 			status = 16;
301 		status = 16 - status;
302 		if (status > length)
303 			status = length;
304 		status &= ~1;
305 
306 		/*
307 		 * Align buffer.
308 		 */
309 		if (((u32)buf) & 2 && status >= 2) {
310 			writel(*(u16 *)buf << 16, reg_dmadata);
311 			buf += 2;
312 			status -= 2;
313 			length -= 2;
314 		}
315 
316 		if (status >= 8) {
317 			unsigned long l1, l2;
318 
319 			l1 = *(u32 *)buf;
320 			buf += 4;
321 			l2 = *(u32 *)buf;
322 			buf += 4;
323 
324 			writel(l1 << 16, reg_dmadata);
325 			writel(l1, reg_dmadata);
326 			writel(l2 << 16, reg_dmadata);
327 			writel(l2, reg_dmadata);
328 			length -= 8;
329 			continue;
330 		}
331 
332 		if (status >= 4) {
333 			unsigned long l1;
334 
335 			l1 = *(u32 *)buf;
336 			buf += 4;
337 
338 			writel(l1 << 16, reg_dmadata);
339 			writel(l1, reg_dmadata);
340 			length -= 4;
341 			continue;
342 		}
343 
344 		if (status >= 2) {
345 			writel(*(u16 *)buf << 16, reg_dmadata);
346 			buf += 2;
347 			length -= 2;
348 		}
349 	} while (length);
350 }
351 
352 static void
353 eesoxscsi_dma_pseudo(struct Scsi_Host *host, struct scsi_pointer *SCp,
354 		     fasdmadir_t dir, int transfer_size)
355 {
356 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
357 	if (dir == DMA_IN) {
358 		eesoxscsi_buffer_in(SCp->ptr, SCp->this_residual, info->base);
359 	} else {
360 		eesoxscsi_buffer_out(SCp->ptr, SCp->this_residual, info->base);
361 	}
362 }
363 
364 /* Prototype: int eesoxscsi_dma_stop(host, SCpnt)
365  * Purpose  : stops DMA/PIO
366  * Params   : host  - host
367  *	      SCpnt - command
368  */
369 static void
370 eesoxscsi_dma_stop(struct Scsi_Host *host, struct scsi_pointer *SCp)
371 {
372 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
373 	if (info->info.scsi.dma != NO_DMA)
374 		disable_dma(info->info.scsi.dma);
375 }
376 
377 /* Prototype: const char *eesoxscsi_info(struct Scsi_Host * host)
378  * Purpose  : returns a descriptive string about this interface,
379  * Params   : host - driver host structure to return info for.
380  * Returns  : pointer to a static buffer containing null terminated string.
381  */
382 const char *eesoxscsi_info(struct Scsi_Host *host)
383 {
384 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
385 	static char string[150];
386 
387 	sprintf(string, "%s (%s) in slot %d v%s terminators o%s",
388 		host->hostt->name, info->info.scsi.type, info->ec->slot_no,
389 		VERSION, info->control & EESOX_TERM_ENABLE ? "n" : "ff");
390 
391 	return string;
392 }
393 
394 /* Prototype: int eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
395  * Purpose  : Set a driver specific function
396  * Params   : host   - host to setup
397  *          : buffer - buffer containing string describing operation
398  *          : length - length of string
399  * Returns  : -EINVAL, or 0
400  */
401 static int
402 eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
403 {
404 	int ret = length;
405 
406 	if (length >= 9 && strncmp(buffer, "EESOXSCSI", 9) == 0) {
407 		buffer += 9;
408 		length -= 9;
409 
410 		if (length >= 5 && strncmp(buffer, "term=", 5) == 0) {
411 			if (buffer[5] == '1')
412 				eesoxscsi_terminator_ctl(host, 1);
413 			else if (buffer[5] == '0')
414 				eesoxscsi_terminator_ctl(host, 0);
415 			else
416 				ret = -EINVAL;
417 		} else
418 			ret = -EINVAL;
419 	} else
420 		ret = -EINVAL;
421 
422 	return ret;
423 }
424 
425 /* Prototype: int eesoxscsi_proc_info(char *buffer, char **start, off_t offset,
426  *				      int length, int host_no, int inout)
427  * Purpose  : Return information about the driver to a user process accessing
428  *	      the /proc filesystem.
429  * Params   : buffer - a buffer to write information to
430  *	      start  - a pointer into this buffer set by this routine to the start
431  *		       of the required information.
432  *	      offset - offset into information that we have read upto.
433  *	      length - length of buffer
434  *	      host_no - host number to return information for
435  *	      inout  - 0 for reading, 1 for writing.
436  * Returns  : length of data written to buffer.
437  */
438 int eesoxscsi_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
439 			    int length, int inout)
440 {
441 	struct eesoxscsi_info *info;
442 	char *p = buffer;
443 	int pos;
444 
445 	if (inout == 1)
446 		return eesoxscsi_set_proc_info(host, buffer, length);
447 
448 	info = (struct eesoxscsi_info *)host->hostdata;
449 
450 	p += sprintf(p, "EESOX SCSI driver v%s\n", VERSION);
451 	p += fas216_print_host(&info->info, p);
452 	p += sprintf(p, "Term    : o%s\n",
453 			info->control & EESOX_TERM_ENABLE ? "n" : "ff");
454 
455 	p += fas216_print_stats(&info->info, p);
456 	p += fas216_print_devices(&info->info, p);
457 
458 	*start = buffer + offset;
459 	pos = p - buffer - offset;
460 	if (pos > length)
461 		pos = length;
462 
463 	return pos;
464 }
465 
466 static ssize_t eesoxscsi_show_term(struct device *dev, struct device_attribute *attr, char *buf)
467 {
468 	struct expansion_card *ec = ECARD_DEV(dev);
469 	struct Scsi_Host *host = ecard_get_drvdata(ec);
470 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
471 
472 	return sprintf(buf, "%d\n", info->control & EESOX_TERM_ENABLE ? 1 : 0);
473 }
474 
475 static ssize_t eesoxscsi_store_term(struct device *dev, struct device_attribute *attr, const char *buf, size_t len)
476 {
477 	struct expansion_card *ec = ECARD_DEV(dev);
478 	struct Scsi_Host *host = ecard_get_drvdata(ec);
479 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
480 	unsigned long flags;
481 
482 	if (len > 1) {
483 		spin_lock_irqsave(host->host_lock, flags);
484 		if (buf[0] != '0') {
485 			info->control |= EESOX_TERM_ENABLE;
486 		} else {
487 			info->control &= ~EESOX_TERM_ENABLE;
488 		}
489 		writeb(info->control, info->ctl_port);
490 		spin_unlock_irqrestore(host->host_lock, flags);
491 	}
492 
493 	return len;
494 }
495 
496 static DEVICE_ATTR(bus_term, S_IRUGO | S_IWUSR,
497 		   eesoxscsi_show_term, eesoxscsi_store_term);
498 
499 static struct scsi_host_template eesox_template = {
500 	.module				= THIS_MODULE,
501 	.proc_info			= eesoxscsi_proc_info,
502 	.name				= "EESOX SCSI",
503 	.info				= eesoxscsi_info,
504 	.queuecommand			= fas216_queue_command,
505 	.eh_host_reset_handler		= fas216_eh_host_reset,
506 	.eh_bus_reset_handler		= fas216_eh_bus_reset,
507 	.eh_device_reset_handler	= fas216_eh_device_reset,
508 	.eh_abort_handler		= fas216_eh_abort,
509 	.can_queue			= 1,
510 	.this_id			= 7,
511 	.sg_tablesize			= SCSI_MAX_SG_CHAIN_SEGMENTS,
512 	.dma_boundary			= IOMD_DMA_BOUNDARY,
513 	.cmd_per_lun			= 1,
514 	.use_clustering			= DISABLE_CLUSTERING,
515 	.proc_name			= "eesox",
516 };
517 
518 static int __devinit
519 eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
520 {
521 	struct Scsi_Host *host;
522 	struct eesoxscsi_info *info;
523 	void __iomem *base;
524 	int ret;
525 
526 	ret = ecard_request_resources(ec);
527 	if (ret)
528 		goto out;
529 
530 	base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
531 	if (!base) {
532 		ret = -ENOMEM;
533 		goto out_region;
534 	}
535 
536 	host = scsi_host_alloc(&eesox_template,
537 			       sizeof(struct eesoxscsi_info));
538 	if (!host) {
539 		ret = -ENOMEM;
540 		goto out_region;
541 	}
542 
543 	ecard_set_drvdata(ec, host);
544 
545 	info = (struct eesoxscsi_info *)host->hostdata;
546 	info->ec	= ec;
547 	info->base	= base;
548 	info->ctl_port	= base + EESOX_CONTROL;
549 	info->control	= term[ec->slot_no] ? EESOX_TERM_ENABLE : 0;
550 	writeb(info->control, info->ctl_port);
551 
552 	info->info.scsi.io_base		= base + EESOX_FAS216_OFFSET;
553 	info->info.scsi.io_shift	= EESOX_FAS216_SHIFT;
554 	info->info.scsi.irq		= ec->irq;
555 	info->info.scsi.dma		= ec->dma;
556 	info->info.ifcfg.clockrate	= 40; /* MHz */
557 	info->info.ifcfg.select_timeout	= 255;
558 	info->info.ifcfg.asyncperiod	= 200; /* ns */
559 	info->info.ifcfg.sync_max_depth	= 7;
560 	info->info.ifcfg.cntl3		= CNTL3_FASTSCSI | CNTL3_FASTCLK;
561 	info->info.ifcfg.disconnect_ok	= 1;
562 	info->info.ifcfg.wide_max_size	= 0;
563 	info->info.ifcfg.capabilities	= FASCAP_PSEUDODMA;
564 	info->info.dma.setup		= eesoxscsi_dma_setup;
565 	info->info.dma.pseudo		= eesoxscsi_dma_pseudo;
566 	info->info.dma.stop		= eesoxscsi_dma_stop;
567 
568 	ec->irqaddr	= base + EESOX_DMASTAT;
569 	ec->irqmask	= EESOX_STAT_INTR;
570 
571 	ecard_setirq(ec, &eesoxscsi_ops, info);
572 
573 	device_create_file(&ec->dev, &dev_attr_bus_term);
574 
575 	ret = fas216_init(host);
576 	if (ret)
577 		goto out_free;
578 
579 	ret = request_irq(ec->irq, eesoxscsi_intr, 0, "eesoxscsi", info);
580 	if (ret) {
581 		printk("scsi%d: IRQ%d not free: %d\n",
582 		       host->host_no, ec->irq, ret);
583 		goto out_remove;
584 	}
585 
586 	if (info->info.scsi.dma != NO_DMA) {
587 		if (request_dma(info->info.scsi.dma, "eesox")) {
588 			printk("scsi%d: DMA%d not free, DMA disabled\n",
589 			       host->host_no, info->info.scsi.dma);
590 			info->info.scsi.dma = NO_DMA;
591 		} else {
592 			set_dma_speed(info->info.scsi.dma, 180);
593 			info->info.ifcfg.capabilities |= FASCAP_DMA;
594 			info->info.ifcfg.cntl3 |= CNTL3_BS8;
595 		}
596 	}
597 
598 	ret = fas216_add(host, &ec->dev);
599 	if (ret == 0)
600 		goto out;
601 
602 	if (info->info.scsi.dma != NO_DMA)
603 		free_dma(info->info.scsi.dma);
604 	free_irq(ec->irq, host);
605 
606  out_remove:
607 	fas216_remove(host);
608 
609  out_free:
610 	device_remove_file(&ec->dev, &dev_attr_bus_term);
611 	scsi_host_put(host);
612 
613  out_region:
614 	ecard_release_resources(ec);
615 
616  out:
617 	return ret;
618 }
619 
620 static void __devexit eesoxscsi_remove(struct expansion_card *ec)
621 {
622 	struct Scsi_Host *host = ecard_get_drvdata(ec);
623 	struct eesoxscsi_info *info = (struct eesoxscsi_info *)host->hostdata;
624 
625 	ecard_set_drvdata(ec, NULL);
626 	fas216_remove(host);
627 
628 	if (info->info.scsi.dma != NO_DMA)
629 		free_dma(info->info.scsi.dma);
630 	free_irq(ec->irq, info);
631 
632 	device_remove_file(&ec->dev, &dev_attr_bus_term);
633 
634 	fas216_release(host);
635 	scsi_host_put(host);
636 	ecard_release_resources(ec);
637 }
638 
639 static const struct ecard_id eesoxscsi_cids[] = {
640 	{ MANU_EESOX, PROD_EESOX_SCSI2 },
641 	{ 0xffff, 0xffff },
642 };
643 
644 static struct ecard_driver eesoxscsi_driver = {
645 	.probe		= eesoxscsi_probe,
646 	.remove		= __devexit_p(eesoxscsi_remove),
647 	.id_table	= eesoxscsi_cids,
648 	.drv = {
649 		.name		= "eesoxscsi",
650 	},
651 };
652 
653 static int __init eesox_init(void)
654 {
655 	return ecard_register_driver(&eesoxscsi_driver);
656 }
657 
658 static void __exit eesox_exit(void)
659 {
660 	ecard_remove_driver(&eesoxscsi_driver);
661 }
662 
663 module_init(eesox_init);
664 module_exit(eesox_exit);
665 
666 MODULE_AUTHOR("Russell King");
667 MODULE_DESCRIPTION("EESOX 'Fast' SCSI driver for Acorn machines");
668 module_param_array(term, int, NULL, 0);
669 MODULE_PARM_DESC(term, "SCSI bus termination");
670 MODULE_LICENSE("GPL");
671