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Merge tag 'please-pull-fixmcelog' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / scsi / g_NCR5380.c
1 /*
2 * Generic Generic NCR5380 driver
3 *
4 * Copyright 1993, Drew Eckhardt
5 * Visionary Computing
6 * (Unix and Linux consulting and custom programming)
7 * drew@colorado.edu
8 * +1 (303) 440-4894
9 *
10 * NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
11 * K.Lentin@cs.monash.edu.au
12 *
13 * NCR53C400A extensions (c) 1996, Ingmar Baumgart
14 * ingmar@gonzo.schwaben.de
15 *
16 * DTC3181E extensions (c) 1997, Ronald van Cuijlenborg
17 * ronald.van.cuijlenborg@tip.nl or nutty@dds.nl
18 *
19 * Added ISAPNP support for DTC436 adapters,
20 * Thomas Sailer, sailer@ife.ee.ethz.ch
21 */
22
23 /*
24 * TODO : flesh out DMA support, find some one actually using this (I have
25 * a memory mapped Trantor board that works fine)
26 */
27
28 /*
29 * The card is detected and initialized in one of several ways :
30 * 1. With command line overrides - NCR5380=port,irq may be
31 * used on the LILO command line to override the defaults.
32 *
33 * 2. With the GENERIC_NCR5380_OVERRIDE compile time define. This is
34 * specified as an array of address, irq, dma, board tuples. Ie, for
35 * one board at 0x350, IRQ5, no dma, I could say
36 * -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
37 *
38 * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
39 * IRQ line if overridden on the command line.
40 *
41 * 3. When included as a module, with arguments passed on the command line:
42 * ncr_irq=xx the interrupt
43 * ncr_addr=xx the port or base address (for port or memory
44 * mapped, resp.)
45 * ncr_dma=xx the DMA
46 * ncr_5380=1 to set up for a NCR5380 board
47 * ncr_53c400=1 to set up for a NCR53C400 board
48 * e.g.
49 * modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
50 * for a port mapped NCR5380 board or
51 * modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
52 * for a memory mapped NCR53C400 board with interrupts disabled.
53 *
54 * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
55 * IRQ line if overridden on the command line.
56 *
57 */
58
59 /* settings for DTC3181E card with only Mustek scanner attached */
60 #define USLEEP_POLL 1
61 #define USLEEP_SLEEP 20
62 #define USLEEP_WAITLONG 500
63
64 #define AUTOPROBE_IRQ
65
66 #ifdef CONFIG_SCSI_GENERIC_NCR53C400
67 #define NCR53C400_PSEUDO_DMA 1
68 #define PSEUDO_DMA
69 #define NCR53C400
70 #endif
71
72 #include <asm/io.h>
73 #include <linux/signal.h>
74 #include <linux/blkdev.h>
75 #include <scsi/scsi_host.h>
76 #include "g_NCR5380.h"
77 #include "NCR5380.h"
78 #include <linux/stat.h>
79 #include <linux/init.h>
80 #include <linux/ioport.h>
81 #include <linux/isapnp.h>
82 #include <linux/delay.h>
83 #include <linux/interrupt.h>
84
85 #define NCR_NOT_SET 0
86 static int ncr_irq = NCR_NOT_SET;
87 static int ncr_dma = NCR_NOT_SET;
88 static int ncr_addr = NCR_NOT_SET;
89 static int ncr_5380 = NCR_NOT_SET;
90 static int ncr_53c400 = NCR_NOT_SET;
91 static int ncr_53c400a = NCR_NOT_SET;
92 static int dtc_3181e = NCR_NOT_SET;
93
94 static struct override {
95 NCR5380_map_type NCR5380_map_name;
96 int irq;
97 int dma;
98 int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
99 } overrides
100 #ifdef GENERIC_NCR5380_OVERRIDE
101 [] __initdata = GENERIC_NCR5380_OVERRIDE;
102 #else
103 [1] __initdata = { { 0,},};
104 #endif
105
106 #define NO_OVERRIDES ARRAY_SIZE(overrides)
107
108 #ifndef MODULE
109
110 /**
111 * internal_setup - handle lilo command string override
112 * @board: BOARD_* identifier for the board
113 * @str: unused
114 * @ints: numeric parameters
115 *
116 * Do LILO command line initialization of the overrides array. Display
117 * errors when needed
118 *
119 * Locks: none
120 */
121
122 static void __init internal_setup(int board, char *str, int *ints)
123 {
124 static int commandline_current = 0;
125 switch (board) {
126 case BOARD_NCR5380:
127 if (ints[0] != 2 && ints[0] != 3) {
128 printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
129 return;
130 }
131 break;
132 case BOARD_NCR53C400:
133 if (ints[0] != 2) {
134 printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
135 return;
136 }
137 break;
138 case BOARD_NCR53C400A:
139 if (ints[0] != 2) {
140 printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
141 return;
142 }
143 break;
144 case BOARD_DTC3181E:
145 if (ints[0] != 2) {
146 printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
147 return;
148 }
149 break;
150 }
151
152 if (commandline_current < NO_OVERRIDES) {
153 overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
154 overrides[commandline_current].irq = ints[2];
155 if (ints[0] == 3)
156 overrides[commandline_current].dma = ints[3];
157 else
158 overrides[commandline_current].dma = DMA_NONE;
159 overrides[commandline_current].board = board;
160 ++commandline_current;
161 }
162 }
163
164
165 /**
166 * do_NCR53C80_setup - set up entry point
167 * @str: unused
168 *
169 * Setup function invoked at boot to parse the ncr5380= command
170 * line.
171 */
172
173 static int __init do_NCR5380_setup(char *str)
174 {
175 int ints[10];
176
177 get_options(str, ARRAY_SIZE(ints), ints);
178 internal_setup(BOARD_NCR5380, str, ints);
179 return 1;
180 }
181
182 /**
183 * do_NCR53C400_setup - set up entry point
184 * @str: unused
185 * @ints: integer parameters from kernel setup code
186 *
187 * Setup function invoked at boot to parse the ncr53c400= command
188 * line.
189 */
190
191 static int __init do_NCR53C400_setup(char *str)
192 {
193 int ints[10];
194
195 get_options(str, ARRAY_SIZE(ints), ints);
196 internal_setup(BOARD_NCR53C400, str, ints);
197 return 1;
198 }
199
200 /**
201 * do_NCR53C400A_setup - set up entry point
202 * @str: unused
203 * @ints: integer parameters from kernel setup code
204 *
205 * Setup function invoked at boot to parse the ncr53c400a= command
206 * line.
207 */
208
209 static int __init do_NCR53C400A_setup(char *str)
210 {
211 int ints[10];
212
213 get_options(str, ARRAY_SIZE(ints), ints);
214 internal_setup(BOARD_NCR53C400A, str, ints);
215 return 1;
216 }
217
218 /**
219 * do_DTC3181E_setup - set up entry point
220 * @str: unused
221 * @ints: integer parameters from kernel setup code
222 *
223 * Setup function invoked at boot to parse the dtc3181e= command
224 * line.
225 */
226
227 static int __init do_DTC3181E_setup(char *str)
228 {
229 int ints[10];
230
231 get_options(str, ARRAY_SIZE(ints), ints);
232 internal_setup(BOARD_DTC3181E, str, ints);
233 return 1;
234 }
235
236 #endif
237
238 /**
239 * generic_NCR5380_detect - look for NCR5380 controllers
240 * @tpnt: the scsi template
241 *
242 * Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
243 * and DTC436(ISAPnP) controllers. If overrides have been set we use
244 * them.
245 *
246 * The caller supplied NCR5380_init function is invoked from here, before
247 * the interrupt line is taken.
248 *
249 * Locks: none
250 */
251
252 static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
253 {
254 static int current_override = 0;
255 int count;
256 unsigned int *ports;
257 #ifndef SCSI_G_NCR5380_MEM
258 int i;
259 unsigned long region_size = 16;
260 #endif
261 static unsigned int __initdata ncr_53c400a_ports[] = {
262 0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
263 };
264 static unsigned int __initdata dtc_3181e_ports[] = {
265 0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
266 };
267 int flags = 0;
268 struct Scsi_Host *instance;
269 #ifdef SCSI_G_NCR5380_MEM
270 unsigned long base;
271 void __iomem *iomem;
272 #endif
273
274 if (ncr_irq != NCR_NOT_SET)
275 overrides[0].irq = ncr_irq;
276 if (ncr_dma != NCR_NOT_SET)
277 overrides[0].dma = ncr_dma;
278 if (ncr_addr != NCR_NOT_SET)
279 overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
280 if (ncr_5380 != NCR_NOT_SET)
281 overrides[0].board = BOARD_NCR5380;
282 else if (ncr_53c400 != NCR_NOT_SET)
283 overrides[0].board = BOARD_NCR53C400;
284 else if (ncr_53c400a != NCR_NOT_SET)
285 overrides[0].board = BOARD_NCR53C400A;
286 else if (dtc_3181e != NCR_NOT_SET)
287 overrides[0].board = BOARD_DTC3181E;
288 #ifndef SCSI_G_NCR5380_MEM
289 if (!current_override && isapnp_present()) {
290 struct pnp_dev *dev = NULL;
291 count = 0;
292 while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
293 if (count >= NO_OVERRIDES)
294 break;
295 if (pnp_device_attach(dev) < 0)
296 continue;
297 if (pnp_activate_dev(dev) < 0) {
298 printk(KERN_ERR "dtc436e probe: activate failed\n");
299 pnp_device_detach(dev);
300 continue;
301 }
302 if (!pnp_port_valid(dev, 0)) {
303 printk(KERN_ERR "dtc436e probe: no valid port\n");
304 pnp_device_detach(dev);
305 continue;
306 }
307 if (pnp_irq_valid(dev, 0))
308 overrides[count].irq = pnp_irq(dev, 0);
309 else
310 overrides[count].irq = NO_IRQ;
311 if (pnp_dma_valid(dev, 0))
312 overrides[count].dma = pnp_dma(dev, 0);
313 else
314 overrides[count].dma = DMA_NONE;
315 overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
316 overrides[count].board = BOARD_DTC3181E;
317 count++;
318 }
319 }
320 #endif
321 tpnt->proc_name = "g_NCR5380";
322
323 for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
324 if (!(overrides[current_override].NCR5380_map_name))
325 continue;
326
327 ports = NULL;
328 switch (overrides[current_override].board) {
329 case BOARD_NCR5380:
330 flags = FLAG_NO_PSEUDO_DMA;
331 break;
332 case BOARD_NCR53C400:
333 flags = FLAG_NCR53C400;
334 break;
335 case BOARD_NCR53C400A:
336 flags = FLAG_NO_PSEUDO_DMA;
337 ports = ncr_53c400a_ports;
338 break;
339 case BOARD_DTC3181E:
340 flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
341 ports = dtc_3181e_ports;
342 break;
343 }
344
345 #ifndef SCSI_G_NCR5380_MEM
346 if (ports) {
347 /* wakeup sequence for the NCR53C400A and DTC3181E */
348
349 /* Disable the adapter and look for a free io port */
350 outb(0x59, 0x779);
351 outb(0xb9, 0x379);
352 outb(0xc5, 0x379);
353 outb(0xae, 0x379);
354 outb(0xa6, 0x379);
355 outb(0x00, 0x379);
356
357 if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
358 for (i = 0; ports[i]; i++) {
359 if (!request_region(ports[i], 16, "ncr53c80"))
360 continue;
361 if (overrides[current_override].NCR5380_map_name == ports[i])
362 break;
363 release_region(ports[i], 16);
364 } else
365 for (i = 0; ports[i]; i++) {
366 if (!request_region(ports[i], 16, "ncr53c80"))
367 continue;
368 if (inb(ports[i]) == 0xff)
369 break;
370 release_region(ports[i], 16);
371 }
372 if (ports[i]) {
373 /* At this point we have our region reserved */
374 outb(0x59, 0x779);
375 outb(0xb9, 0x379);
376 outb(0xc5, 0x379);
377 outb(0xae, 0x379);
378 outb(0xa6, 0x379);
379 outb(0x80 | i, 0x379); /* set io port to be used */
380 outb(0xc0, ports[i] + 9);
381 if (inb(ports[i] + 9) != 0x80)
382 continue;
383 else
384 overrides[current_override].NCR5380_map_name = ports[i];
385 } else
386 continue;
387 }
388 else
389 {
390 /* Not a 53C400A style setup - just grab */
391 if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
392 continue;
393 region_size = NCR5380_region_size;
394 }
395 #else
396 base = overrides[current_override].NCR5380_map_name;
397 if (!request_mem_region(base, NCR5380_region_size, "ncr5380"))
398 continue;
399 iomem = ioremap(base, NCR5380_region_size);
400 if (!iomem) {
401 release_mem_region(base, NCR5380_region_size);
402 continue;
403 }
404 #endif
405 instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
406 if (instance == NULL) {
407 #ifndef SCSI_G_NCR5380_MEM
408 release_region(overrides[current_override].NCR5380_map_name, region_size);
409 #else
410 iounmap(iomem);
411 release_mem_region(base, NCR5380_region_size);
412 #endif
413 continue;
414 }
415
416 instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
417 #ifndef SCSI_G_NCR5380_MEM
418 instance->n_io_port = region_size;
419 #else
420 ((struct NCR5380_hostdata *)instance->hostdata)->iomem = iomem;
421 #endif
422
423 NCR5380_init(instance, flags);
424
425 if (overrides[current_override].irq != IRQ_AUTO)
426 instance->irq = overrides[current_override].irq;
427 else
428 instance->irq = NCR5380_probe_irq(instance, 0xffff);
429
430 /* Compatibility with documented NCR5380 kernel parameters */
431 if (instance->irq == 255)
432 instance->irq = NO_IRQ;
433
434 if (instance->irq != NO_IRQ)
435 if (request_irq(instance->irq, generic_NCR5380_intr,
436 0, "NCR5380", instance)) {
437 printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
438 instance->irq = NO_IRQ;
439 }
440
441 if (instance->irq == NO_IRQ) {
442 printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
443 printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
444 }
445
446 ++current_override;
447 ++count;
448 }
449 return count;
450 }
451
452 /**
453 * generic_NCR5380_release_resources - free resources
454 * @instance: host adapter to clean up
455 *
456 * Free the generic interface resources from this adapter.
457 *
458 * Locks: none
459 */
460
461 static int generic_NCR5380_release_resources(struct Scsi_Host *instance)
462 {
463 NCR5380_local_declare();
464 NCR5380_setup(instance);
465
466 if (instance->irq != NO_IRQ)
467 free_irq(instance->irq, instance);
468 NCR5380_exit(instance);
469
470 #ifndef SCSI_G_NCR5380_MEM
471 release_region(instance->NCR5380_instance_name, instance->n_io_port);
472 #else
473 iounmap(((struct NCR5380_hostdata *)instance->hostdata)->iomem);
474 release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
475 #endif
476
477
478 return 0;
479 }
480
481 #ifdef BIOSPARAM
482 /**
483 * generic_NCR5380_biosparam
484 * @disk: disk to compute geometry for
485 * @dev: device identifier for this disk
486 * @ip: sizes to fill in
487 *
488 * Generates a BIOS / DOS compatible H-C-S mapping for the specified
489 * device / size.
490 *
491 * XXX Most SCSI boards use this mapping, I could be incorrect. Someone
492 * using hard disks on a trantor should verify that this mapping
493 * corresponds to that used by the BIOS / ASPI driver by running the linux
494 * fdisk program and matching the H_C_S coordinates to what DOS uses.
495 *
496 * Locks: none
497 */
498
499 static int
500 generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
501 sector_t capacity, int *ip)
502 {
503 ip[0] = 64;
504 ip[1] = 32;
505 ip[2] = capacity >> 11;
506 return 0;
507 }
508 #endif
509
510 #ifdef NCR53C400_PSEUDO_DMA
511
512 /**
513 * NCR5380_pread - pseudo DMA read
514 * @instance: adapter to read from
515 * @dst: buffer to read into
516 * @len: buffer length
517 *
518 * Perform a pseudo DMA mode read from an NCR53C400 or equivalent
519 * controller
520 */
521
522 static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
523 {
524 int blocks = len / 128;
525 int start = 0;
526 int bl;
527
528 NCR5380_local_declare();
529 NCR5380_setup(instance);
530
531 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
532 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
533 while (1) {
534 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
535 break;
536 }
537 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
538 printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
539 return -1;
540 }
541 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
542
543 #ifndef SCSI_G_NCR5380_MEM
544 {
545 int i;
546 for (i = 0; i < 128; i++)
547 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
548 }
549 #else
550 /* implies SCSI_G_NCR5380_MEM */
551 memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
552 #endif
553 start += 128;
554 blocks--;
555 }
556
557 if (blocks) {
558 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
559 {
560 // FIXME - no timeout
561 }
562
563 #ifndef SCSI_G_NCR5380_MEM
564 {
565 int i;
566 for (i = 0; i < 128; i++)
567 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
568 }
569 #else
570 /* implies SCSI_G_NCR5380_MEM */
571 memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
572 #endif
573 start += 128;
574 blocks--;
575 }
576
577 if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
578 printk("53C400r: no 53C80 gated irq after transfer");
579
580 #if 0
581 /*
582 * DON'T DO THIS - THEY NEVER ARRIVE!
583 */
584 printk("53C400r: Waiting for 53C80 registers\n");
585 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
586 ;
587 #endif
588 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
589 printk(KERN_ERR "53C400r: no end dma signal\n");
590
591 NCR5380_write(MODE_REG, MR_BASE);
592 NCR5380_read(RESET_PARITY_INTERRUPT_REG);
593 return 0;
594 }
595
596 /**
597 * NCR5380_write - pseudo DMA write
598 * @instance: adapter to read from
599 * @dst: buffer to read into
600 * @len: buffer length
601 *
602 * Perform a pseudo DMA mode read from an NCR53C400 or equivalent
603 * controller
604 */
605
606 static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
607 {
608 int blocks = len / 128;
609 int start = 0;
610 int bl;
611 int i;
612
613 NCR5380_local_declare();
614 NCR5380_setup(instance);
615
616 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
617 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
618 while (1) {
619 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
620 printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
621 return -1;
622 }
623
624 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
625 break;
626 }
627 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
628 ; // FIXME - timeout
629 #ifndef SCSI_G_NCR5380_MEM
630 {
631 for (i = 0; i < 128; i++)
632 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
633 }
634 #else
635 /* implies SCSI_G_NCR5380_MEM */
636 memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
637 #endif
638 start += 128;
639 blocks--;
640 }
641 if (blocks) {
642 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
643 ; // FIXME - no timeout
644
645 #ifndef SCSI_G_NCR5380_MEM
646 {
647 for (i = 0; i < 128; i++)
648 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
649 }
650 #else
651 /* implies SCSI_G_NCR5380_MEM */
652 memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
653 #endif
654 start += 128;
655 blocks--;
656 }
657
658 #if 0
659 printk("53C400w: waiting for registers to be available\n");
660 THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
661 printk("53C400w: Got em\n");
662 #endif
663
664 /* Let's wait for this instead - could be ugly */
665 /* All documentation says to check for this. Maybe my hardware is too
666 * fast. Waiting for it seems to work fine! KLL
667 */
668 while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
669 ; // FIXME - no timeout
670
671 /*
672 * I know. i is certainly != 0 here but the loop is new. See previous
673 * comment.
674 */
675 if (i) {
676 if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
677 printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
678 } else
679 printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
680
681 #if 0
682 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
683 printk(KERN_ERR "53C400w: no end dma signal\n");
684 }
685 #endif
686 while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
687 ; // TIMEOUT
688 return 0;
689 }
690 #endif /* PSEUDO_DMA */
691
692 /*
693 * Include the NCR5380 core code that we build our driver around
694 */
695
696 #include "NCR5380.c"
697
698 static struct scsi_host_template driver_template = {
699 .show_info = generic_NCR5380_show_info,
700 .name = "Generic NCR5380/NCR53C400 SCSI",
701 .detect = generic_NCR5380_detect,
702 .release = generic_NCR5380_release_resources,
703 .info = generic_NCR5380_info,
704 .queuecommand = generic_NCR5380_queue_command,
705 .eh_abort_handler = generic_NCR5380_abort,
706 .eh_bus_reset_handler = generic_NCR5380_bus_reset,
707 .bios_param = NCR5380_BIOSPARAM,
708 .can_queue = CAN_QUEUE,
709 .this_id = 7,
710 .sg_tablesize = SG_ALL,
711 .cmd_per_lun = CMD_PER_LUN,
712 .use_clustering = DISABLE_CLUSTERING,
713 };
714 #include <linux/module.h>
715 #include "scsi_module.c"
716
717 module_param(ncr_irq, int, 0);
718 module_param(ncr_dma, int, 0);
719 module_param(ncr_addr, int, 0);
720 module_param(ncr_5380, int, 0);
721 module_param(ncr_53c400, int, 0);
722 module_param(ncr_53c400a, int, 0);
723 module_param(dtc_3181e, int, 0);
724 MODULE_LICENSE("GPL");
725
726 #ifndef SCSI_G_NCR5380_MEM
727 static struct isapnp_device_id id_table[] = {
728 {
729 ISAPNP_ANY_ID, ISAPNP_ANY_ID,
730 ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
731 0},
732 {0}
733 };
734
735 MODULE_DEVICE_TABLE(isapnp, id_table);
736 #endif
737
738 __setup("ncr5380=", do_NCR5380_setup);
739 __setup("ncr53c400=", do_NCR53C400_setup);
740 __setup("ncr53c400a=", do_NCR53C400A_setup);
741 __setup("dtc3181e=", do_DTC3181E_setup);
Linux kernel - Deliverables
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