Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Generic Macintosh NCR5380 driver | |
3 | * | |
4 | * Copyright 1998, Michael Schmitz <mschmitz@lbl.gov> | |
5 | * | |
6 | * derived in part from: | |
7 | */ | |
8 | /* | |
9 | * Generic Generic NCR5380 driver | |
10 | * | |
11 | * Copyright 1995, Russell King | |
12 | * | |
13 | * ALPHA RELEASE 1. | |
14 | * | |
15 | * For more information, please consult | |
16 | * | |
17 | * NCR 5380 Family | |
18 | * SCSI Protocol Controller | |
19 | * Databook | |
20 | * | |
21 | * NCR Microelectronics | |
22 | * 1635 Aeroplaza Drive | |
23 | * Colorado Springs, CO 80916 | |
24 | * 1+ (719) 578-3400 | |
25 | * 1+ (800) 334-5454 | |
26 | */ | |
27 | ||
28 | /* | |
29 | * $Log: mac_NCR5380.c,v $ | |
30 | */ | |
31 | ||
32 | #include <linux/types.h> | |
33 | #include <linux/stddef.h> | |
34 | #include <linux/ctype.h> | |
35 | #include <linux/delay.h> | |
36 | ||
37 | #include <linux/module.h> | |
38 | #include <linux/signal.h> | |
1da177e4 LT |
39 | #include <linux/ioport.h> |
40 | #include <linux/init.h> | |
41 | #include <linux/blkdev.h> | |
42 | #include <linux/interrupt.h> | |
43 | ||
44 | #include <asm/io.h> | |
45 | #include <asm/irq.h> | |
46 | #include <asm/system.h> | |
47 | ||
48 | #include <asm/macintosh.h> | |
49 | #include <asm/macints.h> | |
1da177e4 LT |
50 | #include <asm/mac_via.h> |
51 | ||
52 | #include "scsi.h" | |
53 | #include <scsi/scsi_host.h> | |
54 | #include "mac_scsi.h" | |
e744fdea BH |
55 | |
56 | /* These control the behaviour of the generic 5380 core */ | |
57 | #define AUTOSENSE | |
58 | #define PSEUDO_DMA | |
59 | ||
1da177e4 LT |
60 | #include "NCR5380.h" |
61 | ||
62 | #if 0 | |
63 | #define NDEBUG (NDEBUG_INTR | NDEBUG_PSEUDO_DMA | NDEBUG_ARBITRATION | NDEBUG_SELECTION | NDEBUG_RESELECTION) | |
64 | #else | |
65 | #define NDEBUG (NDEBUG_ABORT) | |
66 | #endif | |
67 | ||
68 | #define RESET_BOOT | |
69 | #define DRIVER_SETUP | |
70 | ||
1da177e4 LT |
71 | extern void via_scsi_clear(void); |
72 | ||
73 | #ifdef RESET_BOOT | |
74 | static void mac_scsi_reset_boot(struct Scsi_Host *instance); | |
75 | #endif | |
76 | ||
77 | static int setup_called = 0; | |
78 | static int setup_can_queue = -1; | |
79 | static int setup_cmd_per_lun = -1; | |
80 | static int setup_sg_tablesize = -1; | |
81 | static int setup_use_pdma = -1; | |
82 | #ifdef SUPPORT_TAGS | |
83 | static int setup_use_tagged_queuing = -1; | |
84 | #endif | |
85 | static int setup_hostid = -1; | |
86 | ||
87 | /* Time (in jiffies) to wait after a reset; the SCSI standard calls for 250ms, | |
88 | * we usually do 0.5s to be on the safe side. But Toshiba CD-ROMs once more | |
89 | * need ten times the standard value... */ | |
90 | #define TOSHIBA_DELAY | |
91 | ||
92 | #ifdef TOSHIBA_DELAY | |
93 | #define AFTER_RESET_DELAY (5*HZ/2) | |
94 | #else | |
95 | #define AFTER_RESET_DELAY (HZ/2) | |
96 | #endif | |
97 | ||
98 | static volatile unsigned char *mac_scsi_regp = NULL; | |
99 | static volatile unsigned char *mac_scsi_drq = NULL; | |
100 | static volatile unsigned char *mac_scsi_nodrq = NULL; | |
101 | ||
102 | ||
103 | /* | |
104 | * NCR 5380 register access functions | |
105 | */ | |
106 | ||
107 | #if 0 | |
108 | /* Debug versions */ | |
109 | #define CTRL(p,v) (*ctrl = (v)) | |
110 | ||
111 | static char macscsi_read(struct Scsi_Host *instance, int reg) | |
112 | { | |
113 | int iobase = instance->io_port; | |
114 | int i; | |
115 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; | |
116 | ||
117 | CTRL(iobase, 0); | |
118 | i = in_8(iobase + (reg<<4)); | |
119 | CTRL(iobase, 0x40); | |
120 | ||
121 | return i; | |
122 | } | |
123 | ||
124 | static void macscsi_write(struct Scsi_Host *instance, int reg, int value) | |
125 | { | |
126 | int iobase = instance->io_port; | |
127 | int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; | |
128 | ||
129 | CTRL(iobase, 0); | |
130 | out_8(iobase + (reg<<4), value); | |
131 | CTRL(iobase, 0x40); | |
132 | } | |
133 | #else | |
134 | ||
135 | /* Fast versions */ | |
136 | static __inline__ char macscsi_read(struct Scsi_Host *instance, int reg) | |
137 | { | |
138 | return in_8(instance->io_port + (reg<<4)); | |
139 | } | |
140 | ||
141 | static __inline__ void macscsi_write(struct Scsi_Host *instance, int reg, int value) | |
142 | { | |
143 | out_8(instance->io_port + (reg<<4), value); | |
144 | } | |
145 | #endif | |
146 | ||
147 | ||
148 | /* | |
149 | * Function : mac_scsi_setup(char *str) | |
150 | * | |
151 | * Purpose : booter command line initialization of the overrides array, | |
152 | * | |
153 | * Inputs : str - comma delimited list of options | |
154 | * | |
155 | */ | |
156 | ||
157 | static int __init mac_scsi_setup(char *str) { | |
158 | #ifdef DRIVER_SETUP | |
159 | int ints[7]; | |
160 | ||
161 | (void)get_options( str, ARRAY_SIZE(ints), ints); | |
162 | ||
163 | if (setup_called++ || ints[0] < 1 || ints[0] > 6) { | |
164 | printk(KERN_WARNING "scsi: <mac5380>" | |
165 | " Usage: mac5380=<can_queue>[,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>,<use_pdma>]\n"); | |
166 | printk(KERN_ALERT "scsi: <mac5380> Bad Penguin parameters?\n"); | |
167 | return 0; | |
168 | } | |
169 | ||
170 | if (ints[0] >= 1) { | |
171 | if (ints[1] > 0) | |
172 | /* no limits on this, just > 0 */ | |
173 | setup_can_queue = ints[1]; | |
174 | } | |
175 | if (ints[0] >= 2) { | |
176 | if (ints[2] > 0) | |
177 | setup_cmd_per_lun = ints[2]; | |
178 | } | |
179 | if (ints[0] >= 3) { | |
180 | if (ints[3] >= 0) { | |
181 | setup_sg_tablesize = ints[3]; | |
182 | /* Must be <= SG_ALL (255) */ | |
183 | if (setup_sg_tablesize > SG_ALL) | |
184 | setup_sg_tablesize = SG_ALL; | |
185 | } | |
186 | } | |
187 | if (ints[0] >= 4) { | |
188 | /* Must be between 0 and 7 */ | |
189 | if (ints[4] >= 0 && ints[4] <= 7) | |
190 | setup_hostid = ints[4]; | |
191 | else if (ints[4] > 7) | |
192 | printk(KERN_WARNING "mac_scsi_setup: invalid host ID %d !\n", ints[4] ); | |
193 | } | |
194 | #ifdef SUPPORT_TAGS | |
195 | if (ints[0] >= 5) { | |
196 | if (ints[5] >= 0) | |
197 | setup_use_tagged_queuing = !!ints[5]; | |
198 | } | |
199 | ||
200 | if (ints[0] == 6) { | |
201 | if (ints[6] >= 0) | |
202 | setup_use_pdma = ints[6]; | |
203 | } | |
204 | #else | |
205 | if (ints[0] == 5) { | |
206 | if (ints[5] >= 0) | |
207 | setup_use_pdma = ints[5]; | |
208 | } | |
209 | #endif /* SUPPORT_TAGS */ | |
210 | ||
211 | #endif /* DRIVER_SETUP */ | |
212 | return 1; | |
213 | } | |
214 | ||
215 | __setup("mac5380=", mac_scsi_setup); | |
216 | ||
1da177e4 | 217 | /* |
d0be4a7d | 218 | * Function : int macscsi_detect(struct scsi_host_template * tpnt) |
1da177e4 LT |
219 | * |
220 | * Purpose : initializes mac NCR5380 driver based on the | |
221 | * command line / compile time port and irq definitions. | |
222 | * | |
223 | * Inputs : tpnt - template for this SCSI adapter. | |
224 | * | |
225 | * Returns : 1 if a host adapter was found, 0 if not. | |
226 | * | |
227 | */ | |
228 | ||
70c26cf3 | 229 | int __init macscsi_detect(struct scsi_host_template * tpnt) |
1da177e4 LT |
230 | { |
231 | static int called = 0; | |
232 | int flags = 0; | |
233 | struct Scsi_Host *instance; | |
234 | ||
235 | if (!MACH_IS_MAC || called) | |
236 | return( 0 ); | |
237 | ||
238 | if (macintosh_config->scsi_type != MAC_SCSI_OLD) | |
239 | return( 0 ); | |
240 | ||
241 | /* setup variables */ | |
242 | tpnt->can_queue = | |
243 | (setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE; | |
244 | tpnt->cmd_per_lun = | |
245 | (setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN; | |
246 | tpnt->sg_tablesize = | |
247 | (setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE; | |
248 | ||
249 | if (setup_hostid >= 0) | |
250 | tpnt->this_id = setup_hostid; | |
251 | else { | |
252 | /* use 7 as default */ | |
253 | tpnt->this_id = 7; | |
254 | } | |
255 | ||
256 | #ifdef SUPPORT_TAGS | |
257 | if (setup_use_tagged_queuing < 0) | |
258 | setup_use_tagged_queuing = USE_TAGGED_QUEUING; | |
259 | #endif | |
260 | ||
261 | /* Once we support multiple 5380s (e.g. DuoDock) we'll do | |
262 | something different here */ | |
263 | instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata)); | |
5db5c505 | 264 | |
1da177e4 LT |
265 | if (macintosh_config->ident == MAC_MODEL_IIFX) { |
266 | mac_scsi_regp = via1+0x8000; | |
267 | mac_scsi_drq = via1+0xE000; | |
268 | mac_scsi_nodrq = via1+0xC000; | |
269 | /* The IIFX should be able to do true DMA, but pseudo-dma doesn't work */ | |
270 | flags = FLAG_NO_PSEUDO_DMA; | |
271 | } else { | |
272 | mac_scsi_regp = via1+0x10000; | |
273 | mac_scsi_drq = via1+0x6000; | |
274 | mac_scsi_nodrq = via1+0x12000; | |
275 | } | |
276 | ||
277 | if (! setup_use_pdma) | |
278 | flags = FLAG_NO_PSEUDO_DMA; | |
279 | ||
280 | instance->io_port = (unsigned long) mac_scsi_regp; | |
281 | instance->irq = IRQ_MAC_SCSI; | |
282 | ||
283 | #ifdef RESET_BOOT | |
284 | mac_scsi_reset_boot(instance); | |
285 | #endif | |
286 | ||
287 | NCR5380_init(instance, flags); | |
288 | ||
289 | instance->n_io_port = 255; | |
290 | ||
291 | ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0; | |
292 | ||
293 | if (instance->irq != SCSI_IRQ_NONE) | |
294 | if (request_irq(instance->irq, NCR5380_intr, IRQ_FLG_SLOW, | |
1e641664 | 295 | "ncr5380", instance)) { |
1da177e4 LT |
296 | printk(KERN_WARNING "scsi%d: IRQ%d not free, interrupts disabled\n", |
297 | instance->host_no, instance->irq); | |
298 | instance->irq = SCSI_IRQ_NONE; | |
299 | } | |
300 | ||
301 | printk(KERN_INFO "scsi%d: generic 5380 at port %lX irq", instance->host_no, instance->io_port); | |
302 | if (instance->irq == SCSI_IRQ_NONE) | |
303 | printk (KERN_INFO "s disabled"); | |
304 | else | |
305 | printk (KERN_INFO " %d", instance->irq); | |
306 | printk(KERN_INFO " options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", | |
307 | instance->can_queue, instance->cmd_per_lun, MACSCSI_PUBLIC_RELEASE); | |
308 | printk(KERN_INFO "\nscsi%d:", instance->host_no); | |
309 | NCR5380_print_options(instance); | |
310 | printk("\n"); | |
311 | called = 1; | |
312 | return 1; | |
313 | } | |
314 | ||
315 | int macscsi_release (struct Scsi_Host *shpnt) | |
316 | { | |
317 | if (shpnt->irq != SCSI_IRQ_NONE) | |
1e641664 | 318 | free_irq(shpnt->irq, shpnt); |
1da177e4 LT |
319 | NCR5380_exit(shpnt); |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | #ifdef RESET_BOOT | |
325 | /* | |
326 | * Our 'bus reset on boot' function | |
327 | */ | |
328 | ||
329 | static void mac_scsi_reset_boot(struct Scsi_Host *instance) | |
330 | { | |
331 | unsigned long end; | |
332 | ||
333 | NCR5380_local_declare(); | |
334 | NCR5380_setup(instance); | |
335 | ||
336 | /* | |
337 | * Do a SCSI reset to clean up the bus during initialization. No messing | |
338 | * with the queues, interrupts, or locks necessary here. | |
339 | */ | |
340 | ||
341 | printk(KERN_INFO "Macintosh SCSI: resetting the SCSI bus..." ); | |
342 | ||
343 | /* switch off SCSI IRQ - catch an interrupt without IRQ bit set else */ | |
9c5f4afd | 344 | disable_irq(IRQ_MAC_SCSI); |
1da177e4 LT |
345 | |
346 | /* get in phase */ | |
347 | NCR5380_write( TARGET_COMMAND_REG, | |
348 | PHASE_SR_TO_TCR( NCR5380_read(STATUS_REG) )); | |
349 | ||
350 | /* assert RST */ | |
351 | NCR5380_write( INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_RST ); | |
352 | /* The min. reset hold time is 25us, so 40us should be enough */ | |
353 | udelay( 50 ); | |
354 | /* reset RST and interrupt */ | |
355 | NCR5380_write( INITIATOR_COMMAND_REG, ICR_BASE ); | |
356 | NCR5380_read( RESET_PARITY_INTERRUPT_REG ); | |
357 | ||
358 | for( end = jiffies + AFTER_RESET_DELAY; time_before(jiffies, end); ) | |
359 | barrier(); | |
360 | ||
361 | /* switch on SCSI IRQ again */ | |
9c5f4afd | 362 | enable_irq(IRQ_MAC_SCSI); |
1da177e4 LT |
363 | |
364 | printk(KERN_INFO " done\n" ); | |
365 | } | |
366 | #endif | |
367 | ||
368 | const char * macscsi_info (struct Scsi_Host *spnt) { | |
369 | return ""; | |
370 | } | |
371 | ||
372 | /* | |
373 | Pseudo-DMA: (Ove Edlund) | |
374 | The code attempts to catch bus errors that occur if one for example | |
375 | "trips over the cable". | |
376 | XXX: Since bus errors in the PDMA routines never happen on my | |
377 | computer, the bus error code is untested. | |
378 | If the code works as intended, a bus error results in Pseudo-DMA | |
379 | beeing disabled, meaning that the driver switches to slow handshake. | |
380 | If bus errors are NOT extremely rare, this has to be changed. | |
381 | */ | |
382 | ||
383 | #define CP_IO_TO_MEM(s,d,len) \ | |
384 | __asm__ __volatile__ \ | |
385 | (" cmp.w #4,%2\n" \ | |
386 | " bls 8f\n" \ | |
387 | " move.w %1,%%d0\n" \ | |
388 | " neg.b %%d0\n" \ | |
389 | " and.w #3,%%d0\n" \ | |
390 | " sub.w %%d0,%2\n" \ | |
391 | " bra 2f\n" \ | |
392 | " 1: move.b (%0),(%1)+\n" \ | |
393 | " 2: dbf %%d0,1b\n" \ | |
394 | " move.w %2,%%d0\n" \ | |
395 | " lsr.w #5,%%d0\n" \ | |
396 | " bra 4f\n" \ | |
397 | " 3: move.l (%0),(%1)+\n" \ | |
398 | "31: move.l (%0),(%1)+\n" \ | |
399 | "32: move.l (%0),(%1)+\n" \ | |
400 | "33: move.l (%0),(%1)+\n" \ | |
401 | "34: move.l (%0),(%1)+\n" \ | |
402 | "35: move.l (%0),(%1)+\n" \ | |
403 | "36: move.l (%0),(%1)+\n" \ | |
404 | "37: move.l (%0),(%1)+\n" \ | |
405 | " 4: dbf %%d0,3b\n" \ | |
406 | " move.w %2,%%d0\n" \ | |
407 | " lsr.w #2,%%d0\n" \ | |
408 | " and.w #7,%%d0\n" \ | |
409 | " bra 6f\n" \ | |
410 | " 5: move.l (%0),(%1)+\n" \ | |
411 | " 6: dbf %%d0,5b\n" \ | |
412 | " and.w #3,%2\n" \ | |
413 | " bra 8f\n" \ | |
414 | " 7: move.b (%0),(%1)+\n" \ | |
415 | " 8: dbf %2,7b\n" \ | |
416 | " moveq.l #0, %2\n" \ | |
417 | " 9: \n" \ | |
418 | ".section .fixup,\"ax\"\n" \ | |
419 | " .even\n" \ | |
420 | "90: moveq.l #1, %2\n" \ | |
421 | " jra 9b\n" \ | |
422 | ".previous\n" \ | |
423 | ".section __ex_table,\"a\"\n" \ | |
424 | " .align 4\n" \ | |
425 | " .long 1b,90b\n" \ | |
426 | " .long 3b,90b\n" \ | |
427 | " .long 31b,90b\n" \ | |
428 | " .long 32b,90b\n" \ | |
429 | " .long 33b,90b\n" \ | |
430 | " .long 34b,90b\n" \ | |
431 | " .long 35b,90b\n" \ | |
432 | " .long 36b,90b\n" \ | |
433 | " .long 37b,90b\n" \ | |
434 | " .long 5b,90b\n" \ | |
435 | " .long 7b,90b\n" \ | |
436 | ".previous" \ | |
437 | : "=a"(s), "=a"(d), "=d"(len) \ | |
438 | : "0"(s), "1"(d), "2"(len) \ | |
439 | : "d0") | |
440 | ||
441 | ||
442 | static int macscsi_pread (struct Scsi_Host *instance, | |
443 | unsigned char *dst, int len) | |
444 | { | |
445 | unsigned char *d; | |
446 | volatile unsigned char *s; | |
447 | ||
448 | NCR5380_local_declare(); | |
449 | NCR5380_setup(instance); | |
450 | ||
451 | s = mac_scsi_drq+0x60; | |
452 | d = dst; | |
453 | ||
454 | /* These conditions are derived from MacOS */ | |
455 | ||
456 | while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) | |
457 | && !(NCR5380_read(STATUS_REG) & SR_REQ)) | |
458 | ; | |
459 | if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) | |
460 | && (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH)) { | |
461 | printk(KERN_ERR "Error in macscsi_pread\n"); | |
462 | return -1; | |
463 | } | |
464 | ||
465 | CP_IO_TO_MEM(s, d, len); | |
466 | ||
467 | if (len != 0) { | |
468 | printk(KERN_NOTICE "Bus error in macscsi_pread\n"); | |
469 | return -1; | |
470 | } | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
475 | ||
476 | #define CP_MEM_TO_IO(s,d,len) \ | |
477 | __asm__ __volatile__ \ | |
478 | (" cmp.w #4,%2\n" \ | |
479 | " bls 8f\n" \ | |
480 | " move.w %0,%%d0\n" \ | |
481 | " neg.b %%d0\n" \ | |
482 | " and.w #3,%%d0\n" \ | |
483 | " sub.w %%d0,%2\n" \ | |
484 | " bra 2f\n" \ | |
485 | " 1: move.b (%0)+,(%1)\n" \ | |
486 | " 2: dbf %%d0,1b\n" \ | |
487 | " move.w %2,%%d0\n" \ | |
488 | " lsr.w #5,%%d0\n" \ | |
489 | " bra 4f\n" \ | |
490 | " 3: move.l (%0)+,(%1)\n" \ | |
491 | "31: move.l (%0)+,(%1)\n" \ | |
492 | "32: move.l (%0)+,(%1)\n" \ | |
493 | "33: move.l (%0)+,(%1)\n" \ | |
494 | "34: move.l (%0)+,(%1)\n" \ | |
495 | "35: move.l (%0)+,(%1)\n" \ | |
496 | "36: move.l (%0)+,(%1)\n" \ | |
497 | "37: move.l (%0)+,(%1)\n" \ | |
498 | " 4: dbf %%d0,3b\n" \ | |
499 | " move.w %2,%%d0\n" \ | |
500 | " lsr.w #2,%%d0\n" \ | |
501 | " and.w #7,%%d0\n" \ | |
502 | " bra 6f\n" \ | |
503 | " 5: move.l (%0)+,(%1)\n" \ | |
504 | " 6: dbf %%d0,5b\n" \ | |
505 | " and.w #3,%2\n" \ | |
506 | " bra 8f\n" \ | |
507 | " 7: move.b (%0)+,(%1)\n" \ | |
508 | " 8: dbf %2,7b\n" \ | |
509 | " moveq.l #0, %2\n" \ | |
510 | " 9: \n" \ | |
511 | ".section .fixup,\"ax\"\n" \ | |
512 | " .even\n" \ | |
513 | "90: moveq.l #1, %2\n" \ | |
514 | " jra 9b\n" \ | |
515 | ".previous\n" \ | |
516 | ".section __ex_table,\"a\"\n" \ | |
517 | " .align 4\n" \ | |
518 | " .long 1b,90b\n" \ | |
519 | " .long 3b,90b\n" \ | |
520 | " .long 31b,90b\n" \ | |
521 | " .long 32b,90b\n" \ | |
522 | " .long 33b,90b\n" \ | |
523 | " .long 34b,90b\n" \ | |
524 | " .long 35b,90b\n" \ | |
525 | " .long 36b,90b\n" \ | |
526 | " .long 37b,90b\n" \ | |
527 | " .long 5b,90b\n" \ | |
528 | " .long 7b,90b\n" \ | |
529 | ".previous" \ | |
530 | : "=a"(s), "=a"(d), "=d"(len) \ | |
531 | : "0"(s), "1"(d), "2"(len) \ | |
532 | : "d0") | |
533 | ||
534 | static int macscsi_pwrite (struct Scsi_Host *instance, | |
535 | unsigned char *src, int len) | |
536 | { | |
537 | unsigned char *s; | |
538 | volatile unsigned char *d; | |
539 | ||
540 | NCR5380_local_declare(); | |
541 | NCR5380_setup(instance); | |
542 | ||
543 | s = src; | |
544 | d = mac_scsi_drq; | |
545 | ||
546 | /* These conditions are derived from MacOS */ | |
547 | ||
548 | while (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ) | |
549 | && (!(NCR5380_read(STATUS_REG) & SR_REQ) | |
550 | || (NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))) | |
551 | ; | |
552 | if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_DRQ)) { | |
553 | printk(KERN_ERR "Error in macscsi_pwrite\n"); | |
554 | return -1; | |
555 | } | |
556 | ||
557 | CP_MEM_TO_IO(s, d, len); | |
558 | ||
559 | if (len != 0) { | |
560 | printk(KERN_NOTICE "Bus error in macscsi_pwrite\n"); | |
561 | return -1; | |
562 | } | |
563 | ||
564 | return 0; | |
565 | } | |
566 | ||
567 | ||
1da177e4 LT |
568 | #include "NCR5380.c" |
569 | ||
d0be4a7d | 570 | static struct scsi_host_template driver_template = { |
1da177e4 LT |
571 | .proc_name = "Mac5380", |
572 | .proc_info = macscsi_proc_info, | |
573 | .name = "Macintosh NCR5380 SCSI", | |
574 | .detect = macscsi_detect, | |
575 | .release = macscsi_release, | |
576 | .info = macscsi_info, | |
577 | .queuecommand = macscsi_queue_command, | |
578 | .eh_abort_handler = macscsi_abort, | |
579 | .eh_bus_reset_handler = macscsi_bus_reset, | |
1da177e4 LT |
580 | .can_queue = CAN_QUEUE, |
581 | .this_id = 7, | |
582 | .sg_tablesize = SG_ALL, | |
583 | .cmd_per_lun = CMD_PER_LUN, | |
1da177e4 LT |
584 | .use_clustering = DISABLE_CLUSTERING |
585 | }; | |
586 | ||
587 | ||
588 | #include "scsi_module.c" |