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Release coccinelle-0.1
[bpt/coccinelle.git] / demos / demo_rule9 / g_NCR5380.c
CommitLineData
34e49164
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 * ALPHA RELEASE 1.
23 *
24 * For more information, please consult
25 *
26 * NCR 5380 Family
27 * SCSI Protocol Controller
28 * Databook
29 *
30 * NCR Microelectronics
31 * 1635 Aeroplaza Drive
32 * Colorado Springs, CO 80916
33 * 1+ (719) 578-3400
34 * 1+ (800) 334-5454
35 */
36
37/*
38 * TODO : flesh out DMA support, find some one actually using this (I have
39 * a memory mapped Trantor board that works fine)
40 */
41
42/*
43 * Options :
44 *
45 * PARITY - enable parity checking. Not supported.
46 *
47 * SCSI2 - enable support for SCSI-II tagged queueing. Untested.
48 *
49 * USLEEP - enable support for devices that don't disconnect. Untested.
50 *
51 * The card is detected and initialized in one of several ways :
52 * 1. With command line overrides - NCR5380=port,irq may be
53 * used on the LILO command line to override the defaults.
54 *
55 * 2. With the GENERIC_NCR5380_OVERRIDE compile time define. This is
56 * specified as an array of address, irq, dma, board tuples. Ie, for
57 * one board at 0x350, IRQ5, no dma, I could say
58 * -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
59 *
60 * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
61 * IRQ line if overridden on the command line.
62 *
63 * 3. When included as a module, with arguments passed on the command line:
64 * ncr_irq=xx the interrupt
65 * ncr_addr=xx the port or base address (for port or memory
66 * mapped, resp.)
67 * ncr_dma=xx the DMA
68 * ncr_5380=1 to set up for a NCR5380 board
69 * ncr_53c400=1 to set up for a NCR53C400 board
70 * e.g.
71 * modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
72 * for a port mapped NCR5380 board or
73 * modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
74 * for a memory mapped NCR53C400 board with interrupts disabled.
75 *
76 * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
77 * IRQ line if overridden on the command line.
78 *
79 */
80
81/*
82 * $Log: g_NCR5380.c,v $
83 * Revision 1.1 2007/11/01 09:43:07 julia
84 * *** empty log message ***
85 *
86 * Revision 1.1.1.1 2007/03/28 16:38:53 pad
87 * your commit message
88 *
89 * Revision 1.1 2006/09/20 01:30:53 pad
90 * new files
91 *
92 */
93
94/* settings for DTC3181E card with only Mustek scanner attached */
95#define USLEEP
96#define USLEEP_POLL 1
97#define USLEEP_SLEEP 20
98#define USLEEP_WAITLONG 500
99
100#define AUTOPROBE_IRQ
101#define AUTOSENSE
102
103#include <linux/config.h>
104
105#ifdef CONFIG_SCSI_GENERIC_NCR53C400
106#define NCR53C400_PSEUDO_DMA 1
107#define PSEUDO_DMA
108#define NCR53C400
109#define NCR5380_STATS
110#undef NCR5380_STAT_LIMIT
111#endif
112
113#include <asm/system.h>
114#include <asm/io.h>
115#include <linux/signal.h>
116#include <linux/sched.h>
117#include <linux/blk.h>
118#include "scsi.h"
119#include "hosts.h"
120#include "g_NCR5380.h"
121#include "NCR5380.h"
122#include <linux/stat.h>
123#include <linux/init.h>
124#include <linux/ioport.h>
125#include <linux/isapnp.h>
126#include <linux/delay.h>
127#include <linux/interrupt.h>
128
129#define NCR_NOT_SET 0
130static int ncr_irq = NCR_NOT_SET;
131static int ncr_dma = NCR_NOT_SET;
132static int ncr_addr = NCR_NOT_SET;
133static int ncr_5380 = NCR_NOT_SET;
134static int ncr_53c400 = NCR_NOT_SET;
135static int ncr_53c400a = NCR_NOT_SET;
136static int dtc_3181e = NCR_NOT_SET;
137
138static struct override {
139 NCR5380_implementation_fields;
140 int irq;
141 int dma;
142 int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
143} overrides
144#ifdef GENERIC_NCR5380_OVERRIDE
145[] __initdata = GENERIC_NCR5380_OVERRIDE;
146#else
147[1] __initdata = { { 0,},};
148#endif
149
150
151#define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
152
153#ifndef MODULE
154
155/**
156 * internal_setup - handle lilo command string override
157 * @board: BOARD_* identifier for the board
158 * @str: unused
159 * @ints: numeric parameters
160 *
161 * Do LILO command line initialization of the overrides array. Display
162 * errors when needed
163 *
164 * Locks: none
165 */
166
167static void __init internal_setup(int board, char *str, int *ints)
168{
169 static int commandline_current = 0;
170 switch (board) {
171 case BOARD_NCR5380:
172 if (ints[0] != 2 && ints[0] != 3) {
173 printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
174 return;
175 }
176 break;
177 case BOARD_NCR53C400:
178 if (ints[0] != 2) {
179 printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
180 return;
181 }
182 break;
183 case BOARD_NCR53C400A:
184 if (ints[0] != 2) {
185 printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
186 return;
187 }
188 break;
189 case BOARD_DTC3181E:
190 if (ints[0] != 2) {
191 printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
192 return;
193 }
194 break;
195 }
196
197 if (commandline_current < NO_OVERRIDES) {
198 overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
199 overrides[commandline_current].irq = ints[2];
200 if (ints[0] == 3)
201 overrides[commandline_current].dma = ints[3];
202 else
203 overrides[commandline_current].dma = DMA_NONE;
204 overrides[commandline_current].board = board;
205 ++commandline_current;
206 }
207}
208
209
210/**
211 * do_NCR53C80_setup - set up entry point
212 * @str: unused
213 *
214 * Setup function invoked at boot to parse the ncr5380= command
215 * line.
216 */
217
218static int __init do_NCR5380_setup(char *str)
219{
220 int ints[10];
221
222 get_options(str, sizeof(ints) / sizeof(int), ints);
223 internal_setup(BOARD_NCR5380, str, ints);
224 return 1;
225}
226
227/**
228 * do_NCR53C400_setup - set up entry point
229 * @str: unused
230 * @ints: integer parameters from kernel setup code
231 *
232 * Setup function invoked at boot to parse the ncr53c400= command
233 * line.
234 */
235
236static int __init do_NCR53C400_setup(char *str)
237{
238 int ints[10];
239
240 get_options(str, sizeof(ints) / sizeof(int), ints);
241 internal_setup(BOARD_NCR53C400, str, ints);
242 return 1;
243}
244
245/**
246 * do_NCR53C400A_setup - set up entry point
247 * @str: unused
248 * @ints: integer parameters from kernel setup code
249 *
250 * Setup function invoked at boot to parse the ncr53c400a= command
251 * line.
252 */
253
254static int __init do_NCR53C400A_setup(char *str)
255{
256 int ints[10];
257
258 get_options(str, sizeof(ints) / sizeof(int), ints);
259 internal_setup(BOARD_NCR53C400A, str, ints);
260 return 1;
261}
262
263/**
264 * do_DTC3181E_setup - set up entry point
265 * @str: unused
266 * @ints: integer parameters from kernel setup code
267 *
268 * Setup function invoked at boot to parse the dtc3181e= command
269 * line.
270 */
271
272static int __init do_DTC3181E_setup(char *str)
273{
274 int ints[10];
275
276 get_options(str, sizeof(ints) / sizeof(int), ints);
277 internal_setup(BOARD_DTC3181E, str, ints);
278 return 1;
279}
280
281#endif
282
283/**
284 * generic_NCR5380_detect - look for NCR5380 controllers
285 * @tpnt: the scsi template
286 *
287 * Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
288 * and DTC436(ISAPnP) controllers. If overrides have been set we use
289 * them.
290 *
291 * The caller supplied NCR5380_init function is invoked from here, before
292 * the interrupt line is taken.
293 *
294 * Locks: none
295 */
296
297int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt)
298{
299 static int current_override = 0;
300 int count, i;
301 unsigned int *ports;
302 static unsigned int __initdata ncr_53c400a_ports[] = {
303 0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
304 };
305 static unsigned int __initdata dtc_3181e_ports[] = {
306 0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
307 };
308 int flags = 0;
309 struct Scsi_Host *instance;
310
311 if (ncr_irq != NCR_NOT_SET)
312 overrides[0].irq = ncr_irq;
313 if (ncr_dma != NCR_NOT_SET)
314 overrides[0].dma = ncr_dma;
315 if (ncr_addr != NCR_NOT_SET)
316 overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
317 if (ncr_5380 != NCR_NOT_SET)
318 overrides[0].board = BOARD_NCR5380;
319 else if (ncr_53c400 != NCR_NOT_SET)
320 overrides[0].board = BOARD_NCR53C400;
321 else if (ncr_53c400a != NCR_NOT_SET)
322 overrides[0].board = BOARD_NCR53C400A;
323 else if (dtc_3181e != NCR_NOT_SET)
324 overrides[0].board = BOARD_DTC3181E;
325
326 if (!current_override && isapnp_present()) {
327 struct pnp_dev *dev = NULL;
328 count = 0;
329 while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
330 if (count >= NO_OVERRIDES)
331 break;
332 if (pnp_device_attach(dev) < 0) {
333 printk(KERN_ERR "dtc436e probe: attach failed\n");
334 continue;
335 }
336 if (pnp_activate_dev(dev) < 0) {
337 printk(KERN_ERR "dtc436e probe: activate failed\n");
338 pnp_device_detach(dev);
339 continue;
340 }
341 if (!pnp_port_valid(dev, 0)) {
342 printk(KERN_ERR "dtc436e probe: no valid port\n");
343 pnp_device_detach(dev);
344 continue;
345 }
346 if (pnp_irq_valid(dev, 0))
347 overrides[count].irq = pnp_irq(dev, 0);
348 else
349 overrides[count].irq = SCSI_IRQ_NONE;
350 if (pnp_dma_valid(dev, 0))
351 overrides[count].dma = pnp_dma(dev, 0);
352 else
353 overrides[count].dma = DMA_NONE;
354 overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
355 overrides[count].board = BOARD_DTC3181E;
356 count++;
357 }
358 }
359
360 tpnt->proc_name = "g_NCR5380";
361
362 for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
363 if (!(overrides[current_override].NCR5380_map_name))
364 continue;
365
366 ports = 0;
367 switch (overrides[current_override].board) {
368 case BOARD_NCR5380:
369 flags = FLAG_NO_PSEUDO_DMA;
370 break;
371 case BOARD_NCR53C400:
372 flags = FLAG_NCR53C400;
373 break;
374 case BOARD_NCR53C400A:
375 flags = FLAG_NO_PSEUDO_DMA;
376 ports = ncr_53c400a_ports;
377 break;
378 case BOARD_DTC3181E:
379 flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
380 ports = dtc_3181e_ports;
381 break;
382 }
383
384#ifndef CONFIG_SCSI_G_NCR5380_MEM
385 if (ports) {
386 /* wakeup sequence for the NCR53C400A and DTC3181E */
387
388 /* Disable the adapter and look for a free io port */
389 outb(0x59, 0x779);
390 outb(0xb9, 0x379);
391 outb(0xc5, 0x379);
392 outb(0xae, 0x379);
393 outb(0xa6, 0x379);
394 outb(0x00, 0x379);
395
396 if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
397 for (i = 0; ports[i]; i++) {
398 if (overrides[current_override].NCR5380_map_name == ports[i])
399 break;
400 } else
401 for (i = 0; ports[i]; i++) {
402 if ((!check_region(ports[i], 16)) && (inb(ports[i]) == 0xff))
403 break;
404 }
405 if (ports[i]) {
406 outb(0x59, 0x779);
407 outb(0xb9, 0x379);
408 outb(0xc5, 0x379);
409 outb(0xae, 0x379);
410 outb(0xa6, 0x379);
411 outb(0x80 | i, 0x379); /* set io port to be used */
412 outb(0xc0, ports[i] + 9);
413 if (inb(ports[i] + 9) != 0x80)
414 continue;
415 else
416 overrides[current_override].NCR5380_map_name = ports[i];
417 } else
418 continue;
419 }
420
421 request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380");
422#else
423 if (check_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size))
424 continue;
425 request_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380");
426#endif
427 instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
428 if (instance == NULL) {
429#ifndef CONFIG_SCSI_G_NCR5380_MEM
430 release_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
431#else
432 release_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
433#endif
434 continue;
435 }
436
437 instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
438
439 NCR5380_init(instance, flags);
440
441 if (overrides[current_override].irq != IRQ_AUTO)
442 instance->irq = overrides[current_override].irq;
443 else
444 instance->irq = NCR5380_probe_irq(instance, 0xffff);
445
446 if (instance->irq != SCSI_IRQ_NONE)
447 if (request_irq(instance->irq, generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", NULL)) {
448 printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
449 instance->irq = SCSI_IRQ_NONE;
450 }
451
452 if (instance->irq == SCSI_IRQ_NONE) {
453 printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
454 printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
455 }
456
457 printk(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
458 if (instance->irq == SCSI_IRQ_NONE)
459 printk(" interrupts disabled");
460 else
461 printk(" irq %d", instance->irq);
462 printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
463 NCR5380_print_options(instance);
464 printk("\n");
465
466 ++current_override;
467 ++count;
468 }
469 return count;
470}
471
472/**
473 * generic_NCR5380_info - reporting string
474 * @host: NCR5380 to report on
475 *
476 * Report driver information for the NCR5380
477 */
478
479const char *generic_NCR5380_info(struct Scsi_Host *host)
480{
481 static const char string[] = "Generic NCR5380/53C400 Driver";
482 return string;
483}
484
485/**
486 * generic_NCR5380_release_resources - free resources
487 * @instance: host adapter to clean up
488 *
489 * Free the generic interface resources from this adapter.
490 *
491 * Locks: none
492 */
493
494int generic_NCR5380_release_resources(struct Scsi_Host *instance)
495{
496 NCR5380_local_declare();
497 NCR5380_setup(instance);
498
499#ifndef CONFIG_SCSI_G_NCR5380_MEM
500 release_region(instance->NCR5380_instance_name, NCR5380_region_size);
501#else
502 release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
503#endif
504
505 if (instance->irq != SCSI_IRQ_NONE)
506 free_irq(instance->irq, NULL);
507
508 return 0;
509}
510
511#ifdef BIOSPARAM
512/**
513 * generic_NCR5380_biosparam
514 * @disk: disk to compute geometry for
515 * @dev: device identifier for this disk
516 * @ip: sizes to fill in
517 *
518 * Generates a BIOS / DOS compatible H-C-S mapping for the specified
519 * device / size.
520 *
521 * XXX Most SCSI boards use this mapping, I could be incorrect. Someone
522 * using hard disks on a trantor should verify that this mapping
523 * corresponds to that used by the BIOS / ASPI driver by running the linux
524 * fdisk program and matching the H_C_S coordinates to what DOS uses.
525 *
526 * Locks: none
527 */
528
529int generic_NCR5380_biosparam(struct scsi_device *sdev,
530 struct block_device *bdev, sector_t capacity, int *ip)
531{
532 ip[0] = 64;
533 ip[1] = 32;
534 ip[2] = capacity >> 11;
535 return 0;
536}
537#endif
538
539#if NCR53C400_PSEUDO_DMA
540
541/**
542 * NCR5380_pread - pseudo DMA read
543 * @instance: adapter to read from
544 * @dst: buffer to read into
545 * @len: buffer length
546 *
547 * Perform a psuedo DMA mode read from an NCR53C400 or equivalent
548 * controller
549 */
550
551static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
552{
553 int blocks = len / 128;
554 int start = 0;
555 int bl;
556
557 NCR5380_local_declare();
558 NCR5380_setup(instance);
559
560 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
561 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
562 while (1) {
563 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
564 break;
565 }
566 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
567 printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
568 return -1;
569 }
570 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
571
572#ifndef CONFIG_SCSI_G_NCR5380_MEM
573 {
574 int i;
575 for (i = 0; i < 128; i++)
576 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
577 }
578#else
579 /* implies CONFIG_SCSI_G_NCR5380_MEM */
580 isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
581#endif
582 start += 128;
583 blocks--;
584 }
585
586 if (blocks) {
587 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
588 {
589 // FIXME - no timeout
590 }
591
592#ifndef CONFIG_SCSI_G_NCR5380_MEM
593 {
594 int i;
595 for (i = 0; i < 128; i++)
596 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
597 }
598#else
599 /* implies CONFIG_SCSI_G_NCR5380_MEM */
600 isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
601#endif
602 start += 128;
603 blocks--;
604 }
605
606 if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
607 printk("53C400r: no 53C80 gated irq after transfer");
608
609#if 0
610 /*
611 * DON'T DO THIS - THEY NEVER ARRIVE!
612 */
613 printk("53C400r: Waiting for 53C80 registers\n");
614 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
615 ;
616#endif
617 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
618 printk(KERN_ERR "53C400r: no end dma signal\n");
619
620 NCR5380_write(MODE_REG, MR_BASE);
621 NCR5380_read(RESET_PARITY_INTERRUPT_REG);
622 return 0;
623}
624
625/**
626 * NCR5380_write - pseudo DMA write
627 * @instance: adapter to read from
628 * @dst: buffer to read into
629 * @len: buffer length
630 *
631 * Perform a psuedo DMA mode read from an NCR53C400 or equivalent
632 * controller
633 */
634
635static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
636{
637 int blocks = len / 128;
638 int start = 0;
639 int bl;
640 int i;
641
642 NCR5380_local_declare();
643 NCR5380_setup(instance);
644
645 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
646 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
647 while (1) {
648 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
649 printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
650 return -1;
651 }
652
653 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
654 break;
655 }
656 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
657 ; // FIXME - timeout
658#ifndef CONFIG_SCSI_G_NCR5380_MEM
659 {
660 for (i = 0; i < 128; i++)
661 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
662 }
663#else
664 /* implies CONFIG_SCSI_G_NCR5380_MEM */
665 isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
666#endif
667 start += 128;
668 blocks--;
669 }
670 if (blocks) {
671 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
672 ; // FIXME - no timeout
673
674#ifndef CONFIG_SCSI_G_NCR5380_MEM
675 {
676 for (i = 0; i < 128; i++)
677 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
678 }
679#else
680 /* implies CONFIG_SCSI_G_NCR5380_MEM */
681 isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
682#endif
683 start += 128;
684 blocks--;
685 }
686
687#if 0
688 printk("53C400w: waiting for registers to be available\n");
689 THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
690 printk("53C400w: Got em\n");
691#endif
692
693 /* Let's wait for this instead - could be ugly */
694 /* All documentation says to check for this. Maybe my hardware is too
695 * fast. Waiting for it seems to work fine! KLL
696 */
697 while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
698 ; // FIXME - no timeout
699
700 /*
701 * I know. i is certainly != 0 here but the loop is new. See previous
702 * comment.
703 */
704 if (i) {
705 if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
706 printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
707 } else
708 printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
709
710#if 0
711 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
712 printk(KERN_ERR "53C400w: no end dma signal\n");
713 }
714#endif
715 while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
716 ; // TIMEOUT
717 return 0;
718}
719#endif /* PSEUDO_DMA */
720
721/*
722 * Include the NCR5380 core code that we build our driver around
723 */
724
725#include "NCR5380.c"
726
727#define PRINTP(x) len += sprintf(buffer+len, x)
728#define ANDP ,
729
730static int sprint_opcode(char *buffer, int len, int opcode)
731{
732 int start = len;
733 PRINTP("0x%02x " ANDP opcode);
734 return len - start;
735}
736
737static int sprint_command(char *buffer, int len, unsigned char *command)
738{
739 int i, s, start = len;
740 len += sprint_opcode(buffer, len, command[0]);
741 for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
742 PRINTP("%02x " ANDP command[i]);
743 PRINTP("\n");
744 return len - start;
745}
746
747/**
748 * sprintf_Scsi_Cmnd - print a scsi command
749 * @buffer: buffr to print into
750 * @len: buffer length
751 * @cmd: SCSI command block
752 *
753 * Print out the target and command data in hex
754 */
755
756static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd)
757{
758 int start = len;
759 PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
760 PRINTP(" command = ");
761 len += sprint_command(buffer, len, cmd->cmnd);
762 return len - start;
763}
764
765/**
766 * generic_NCR5380_proc_info - /proc for NCR5380 driver
767 * @buffer: buffer to print into
768 * @start: start position
769 * @offset: offset into buffer
770 * @len: length
771 * @hostno: instance to affect
772 * @inout: read/write
773 *
774 * Provide the procfs information for the 5380 controller. We fill
775 * this with useful debugging information including the commands
776 * being executed, disconnected command queue and the statistical
777 * data
778 *
779 * Locks: global cli/lock for queue walk
780 */
781
782int generic_NCR5380_proc_info(char *buffer, char **start, off_t offset, int length, int hostno, int inout)
783{
784 int len = 0;
785 NCR5380_local_declare();
786 unsigned long flags;
787 unsigned char status;
788 int i;
789 struct Scsi_Host *scsi_ptr;
790 Scsi_Cmnd *ptr;
791 struct NCR5380_hostdata *hostdata;
792#ifdef NCR5380_STATS
793 Scsi_Device *dev;
794 extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
795#endif
796
797 /* For now this is constant so we may walk it */
798 scsi_ptr = scsi_host_hn_get(hostno);
799
800 NCR5380_setup(scsi_ptr);
801 hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
802
803 spin_lock_irqsave(scsi_ptr->host_lock, flags);
804 PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
805 PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
806 PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
807#ifdef NCR53C400
808 PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
809 PRINTP("NCR53C400 card%s detected\n" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
810# if NCR53C400_PSEUDO_DMA
811 PRINTP("NCR53C400 pseudo DMA used\n");
812# endif
813#else
814 PRINTP("NO NCR53C400 driver extensions\n");
815#endif
816 PRINTP("Using %s mapping at %s 0x%lx, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
817 if (scsi_ptr->irq == SCSI_IRQ_NONE)
818 PRINTP("no interrupt\n");
819 else
820 PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
821
822#ifdef NCR5380_STATS
823 if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
824 PRINTP("There are commands pending, transfer rates may be crud\n");
825 if (hostdata->pendingr)
826 PRINTP(" %d pending reads" ANDP hostdata->pendingr);
827 if (hostdata->pendingw)
828 PRINTP(" %d pending writes" ANDP hostdata->pendingw);
829 if (hostdata->pendingr || hostdata->pendingw)
830 PRINTP("\n");
831 list_for_each_entry (dev, &scsi_ptr->my_devices, siblings) {
832 unsigned long br = hostdata->bytes_read[dev->id];
833 unsigned long bw = hostdata->bytes_write[dev->id];
834 long tr = hostdata->time_read[dev->id] / HZ;
835 long tw = hostdata->time_write[dev->id] / HZ;
836
837 PRINTP(" T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
838 for (i = 0; i < 8; i++)
839 if (dev->vendor[i] >= 0x20)
840 *(buffer + (len++)) = dev->vendor[i];
841 *(buffer + (len++)) = ' ';
842 for (i = 0; i < 16; i++)
843 if (dev->model[i] >= 0x20)
844 *(buffer + (len++)) = dev->model[i];
845 *(buffer + (len++)) = ' ';
846 for (i = 0; i < 4; i++)
847 if (dev->rev[i] >= 0x20)
848 *(buffer + (len++)) = dev->rev[i];
849 *(buffer + (len++)) = ' ';
850
851 PRINTP("\n%10ld kb read in %5ld secs" ANDP br / 1024 ANDP tr);
852 if (tr)
853 PRINTP(" @ %5ld bps" ANDP br / tr);
854
855 PRINTP("\n%10ld kb written in %5ld secs" ANDP bw / 1024 ANDP tw);
856 if (tw)
857 PRINTP(" @ %5ld bps" ANDP bw / tw);
858 PRINTP("\n");
859 }
860#endif
861
862 status = NCR5380_read(STATUS_REG);
863 if (!(status & SR_REQ))
864 PRINTP("REQ not asserted, phase unknown.\n");
865 else {
866 for (i = 0; (phases[i].value != PHASE_UNKNOWN) && (phases[i].value != (status & PHASE_MASK)); ++i);
867 PRINTP("Phase %s\n" ANDP phases[i].name);
868 }
869
870 if (!hostdata->connected) {
871 PRINTP("No currently connected command\n");
872 } else {
873 len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
874 }
875
876 PRINTP("issue_queue\n");
877
878 for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
879 len += sprint_Scsi_Cmnd(buffer, len, ptr);
880
881 PRINTP("disconnected_queue\n");
882
883 for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
884 len += sprint_Scsi_Cmnd(buffer, len, ptr);
885
886 *start = buffer + offset;
887 len -= offset;
888 if (len > length)
889 len = length;
890 spin_unlock_irqrestore(scsi_ptr->host_lock, flags);
891 return len;
892}
893
894#undef PRINTP
895#undef ANDP
896
897static Scsi_Host_Template driver_template = {
898 .proc_info = generic_NCR5380_proc_info,
899 .name = "Generic NCR5380/NCR53C400 Scsi Driver",
900 .detect = generic_NCR5380_detect,
901 .release = generic_NCR5380_release_resources,
902 .info = generic_NCR5380_info,
903 .queuecommand = generic_NCR5380_queue_command,
904 .eh_abort_handler = generic_NCR5380_abort,
905 .eh_bus_reset_handler = generic_NCR5380_bus_reset,
906 .eh_device_reset_handler = generic_NCR5380_device_reset,
907 .eh_host_reset_handler = generic_NCR5380_host_reset,
908 .bios_param = NCR5380_BIOSPARAM,
909 .can_queue = CAN_QUEUE,
910 .this_id = 7,
911 .sg_tablesize = SG_ALL,
912 .cmd_per_lun = CMD_PER_LUN,
913 .use_clustering = DISABLE_CLUSTERING,
914};
915#include <linux/module.h>
916#include "scsi_module.c"
917
918MODULE_PARM(ncr_irq, "i");
919MODULE_PARM(ncr_dma, "i");
920MODULE_PARM(ncr_addr, "i");
921MODULE_PARM(ncr_5380, "i");
922MODULE_PARM(ncr_53c400, "i");
923MODULE_PARM(ncr_53c400a, "i");
924MODULE_PARM(dtc_3181e, "i");
925MODULE_LICENSE("GPL");
926
927
928static struct isapnp_device_id id_table[] __devinitdata = {
929 {
930 ISAPNP_ANY_ID, ISAPNP_ANY_ID,
931 ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
932 0},
933 {0}
934};
935
936MODULE_DEVICE_TABLE(isapnp, id_table);
937
938
939__setup("ncr5380=", do_NCR5380_setup);
940__setup("ncr53c400=", do_NCR53C400_setup);
941__setup("ncr53c400a=", do_NCR53C400A_setup);
942__setup("dtc3181e=", do_DTC3181E_setup);
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