projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit...
[GitHub/mt8127/android_kernel_alcatel_ttab.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 * 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: generic_NCR5380.c,v $
83 */
84
85 /* settings for DTC3181E card with only Mustek scanner attached */
86 #define USLEEP
87 #define USLEEP_POLL 1
88 #define USLEEP_SLEEP 20
89 #define USLEEP_WAITLONG 500
90
91 #define AUTOPROBE_IRQ
92 #define AUTOSENSE
93
94 #include <linux/config.h>
95
96 #ifdef CONFIG_SCSI_GENERIC_NCR53C400
97 #define NCR53C400_PSEUDO_DMA 1
98 #define PSEUDO_DMA
99 #define NCR53C400
100 #define NCR5380_STATS
101 #undef NCR5380_STAT_LIMIT
102 #endif
103
104 #include <asm/system.h>
105 #include <asm/io.h>
106 #include <linux/signal.h>
107 #include <linux/sched.h>
108 #include <linux/blkdev.h>
109 #include "scsi.h"
110 #include <scsi/scsi_host.h>
111 #include "g_NCR5380.h"
112 #include "NCR5380.h"
113 #include <linux/stat.h>
114 #include <linux/init.h>
115 #include <linux/ioport.h>
116 #include <linux/isapnp.h>
117 #include <linux/delay.h>
118 #include <linux/interrupt.h>
119
120 #define NCR_NOT_SET 0
121 static int ncr_irq = NCR_NOT_SET;
122 static int ncr_dma = NCR_NOT_SET;
123 static int ncr_addr = NCR_NOT_SET;
124 static int ncr_5380 = NCR_NOT_SET;
125 static int ncr_53c400 = NCR_NOT_SET;
126 static int ncr_53c400a = NCR_NOT_SET;
127 static int dtc_3181e = NCR_NOT_SET;
128
129 static struct override {
130 NCR5380_map_type NCR5380_map_name;
131 int irq;
132 int dma;
133 int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
134 } overrides
135 #ifdef GENERIC_NCR5380_OVERRIDE
136 [] __initdata = GENERIC_NCR5380_OVERRIDE;
137 #else
138 [1] __initdata = { { 0,},};
139 #endif
140
141
142 #define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
143
144 #ifndef MODULE
145
146 /**
147 * internal_setup - handle lilo command string override
148 * @board: BOARD_* identifier for the board
149 * @str: unused
150 * @ints: numeric parameters
151 *
152 * Do LILO command line initialization of the overrides array. Display
153 * errors when needed
154 *
155 * Locks: none
156 */
157
158 static void __init internal_setup(int board, char *str, int *ints)
159 {
160 static int commandline_current = 0;
161 switch (board) {
162 case BOARD_NCR5380:
163 if (ints[0] != 2 && ints[0] != 3) {
164 printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
165 return;
166 }
167 break;
168 case BOARD_NCR53C400:
169 if (ints[0] != 2) {
170 printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
171 return;
172 }
173 break;
174 case BOARD_NCR53C400A:
175 if (ints[0] != 2) {
176 printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
177 return;
178 }
179 break;
180 case BOARD_DTC3181E:
181 if (ints[0] != 2) {
182 printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
183 return;
184 }
185 break;
186 }
187
188 if (commandline_current < NO_OVERRIDES) {
189 overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
190 overrides[commandline_current].irq = ints[2];
191 if (ints[0] == 3)
192 overrides[commandline_current].dma = ints[3];
193 else
194 overrides[commandline_current].dma = DMA_NONE;
195 overrides[commandline_current].board = board;
196 ++commandline_current;
197 }
198 }
199
200
201 /**
202 * do_NCR53C80_setup - set up entry point
203 * @str: unused
204 *
205 * Setup function invoked at boot to parse the ncr5380= command
206 * line.
207 */
208
209 static int __init do_NCR5380_setup(char *str)
210 {
211 int ints[10];
212
213 get_options(str, sizeof(ints) / sizeof(int), ints);
214 internal_setup(BOARD_NCR5380, str, ints);
215 return 1;
216 }
217
218 /**
219 * do_NCR53C400_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 ncr53c400= command
224 * line.
225 */
226
227 static int __init do_NCR53C400_setup(char *str)
228 {
229 int ints[10];
230
231 get_options(str, sizeof(ints) / sizeof(int), ints);
232 internal_setup(BOARD_NCR53C400, str, ints);
233 return 1;
234 }
235
236 /**
237 * do_NCR53C400A_setup - set up entry point
238 * @str: unused
239 * @ints: integer parameters from kernel setup code
240 *
241 * Setup function invoked at boot to parse the ncr53c400a= command
242 * line.
243 */
244
245 static int __init do_NCR53C400A_setup(char *str)
246 {
247 int ints[10];
248
249 get_options(str, sizeof(ints) / sizeof(int), ints);
250 internal_setup(BOARD_NCR53C400A, str, ints);
251 return 1;
252 }
253
254 /**
255 * do_DTC3181E_setup - set up entry point
256 * @str: unused
257 * @ints: integer parameters from kernel setup code
258 *
259 * Setup function invoked at boot to parse the dtc3181e= command
260 * line.
261 */
262
263 static int __init do_DTC3181E_setup(char *str)
264 {
265 int ints[10];
266
267 get_options(str, sizeof(ints) / sizeof(int), ints);
268 internal_setup(BOARD_DTC3181E, str, ints);
269 return 1;
270 }
271
272 #endif
273
274 /**
275 * generic_NCR5380_detect - look for NCR5380 controllers
276 * @tpnt: the scsi template
277 *
278 * Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
279 * and DTC436(ISAPnP) controllers. If overrides have been set we use
280 * them.
281 *
282 * The caller supplied NCR5380_init function is invoked from here, before
283 * the interrupt line is taken.
284 *
285 * Locks: none
286 */
287
288 int __init generic_NCR5380_detect(struct scsi_host_template * tpnt)
289 {
290 static int current_override = 0;
291 int count, i;
292 unsigned int *ports;
293 unsigned long region_size = 16;
294 static unsigned int __initdata ncr_53c400a_ports[] = {
295 0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
296 };
297 static unsigned int __initdata dtc_3181e_ports[] = {
298 0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
299 };
300 int flags = 0;
301 struct Scsi_Host *instance;
302 #ifdef CONFIG_SCSI_G_NCR5380_MEM
303 unsigned long base;
304 void __iomem *iomem;
305 #endif
306
307 if (ncr_irq != NCR_NOT_SET)
308 overrides[0].irq = ncr_irq;
309 if (ncr_dma != NCR_NOT_SET)
310 overrides[0].dma = ncr_dma;
311 if (ncr_addr != NCR_NOT_SET)
312 overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
313 if (ncr_5380 != NCR_NOT_SET)
314 overrides[0].board = BOARD_NCR5380;
315 else if (ncr_53c400 != NCR_NOT_SET)
316 overrides[0].board = BOARD_NCR53C400;
317 else if (ncr_53c400a != NCR_NOT_SET)
318 overrides[0].board = BOARD_NCR53C400A;
319 else if (dtc_3181e != NCR_NOT_SET)
320 overrides[0].board = BOARD_DTC3181E;
321
322 if (!current_override && isapnp_present()) {
323 struct pnp_dev *dev = NULL;
324 count = 0;
325 while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
326 if (count >= NO_OVERRIDES)
327 break;
328 if (pnp_device_attach(dev) < 0) {
329 printk(KERN_ERR "dtc436e probe: attach failed\n");
330 continue;
331 }
332 if (pnp_activate_dev(dev) < 0) {
333 printk(KERN_ERR "dtc436e probe: activate failed\n");
334 pnp_device_detach(dev);
335 continue;
336 }
337 if (!pnp_port_valid(dev, 0)) {
338 printk(KERN_ERR "dtc436e probe: no valid port\n");
339 pnp_device_detach(dev);
340 continue;
341 }
342 if (pnp_irq_valid(dev, 0))
343 overrides[count].irq = pnp_irq(dev, 0);
344 else
345 overrides[count].irq = SCSI_IRQ_NONE;
346 if (pnp_dma_valid(dev, 0))
347 overrides[count].dma = pnp_dma(dev, 0);
348 else
349 overrides[count].dma = DMA_NONE;
350 overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
351 overrides[count].board = BOARD_DTC3181E;
352 count++;
353 }
354 }
355
356 tpnt->proc_name = "g_NCR5380";
357
358 for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
359 if (!(overrides[current_override].NCR5380_map_name))
360 continue;
361
362 ports = NULL;
363 switch (overrides[current_override].board) {
364 case BOARD_NCR5380:
365 flags = FLAG_NO_PSEUDO_DMA;
366 break;
367 case BOARD_NCR53C400:
368 flags = FLAG_NCR53C400;
369 break;
370 case BOARD_NCR53C400A:
371 flags = FLAG_NO_PSEUDO_DMA;
372 ports = ncr_53c400a_ports;
373 break;
374 case BOARD_DTC3181E:
375 flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
376 ports = dtc_3181e_ports;
377 break;
378 }
379
380 #ifndef CONFIG_SCSI_G_NCR5380_MEM
381 if (ports) {
382 /* wakeup sequence for the NCR53C400A and DTC3181E */
383
384 /* Disable the adapter and look for a free io port */
385 outb(0x59, 0x779);
386 outb(0xb9, 0x379);
387 outb(0xc5, 0x379);
388 outb(0xae, 0x379);
389 outb(0xa6, 0x379);
390 outb(0x00, 0x379);
391
392 if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
393 for (i = 0; ports[i]; i++) {
394 if (!request_region(ports[i], 16, "ncr53c80"))
395 continue;
396 if (overrides[current_override].NCR5380_map_name == ports[i])
397 break;
398 release_region(ports[i], 16);
399 } else
400 for (i = 0; ports[i]; i++) {
401 if (!request_region(ports[i], 16, "ncr53c80"))
402 continue;
403 if (inb(ports[i]) == 0xff)
404 break;
405 release_region(ports[i], 16);
406 }
407 if (ports[i]) {
408 /* At this point we have our region reserved */
409 outb(0x59, 0x779);
410 outb(0xb9, 0x379);
411 outb(0xc5, 0x379);
412 outb(0xae, 0x379);
413 outb(0xa6, 0x379);
414 outb(0x80 | i, 0x379); /* set io port to be used */
415 outb(0xc0, ports[i] + 9);
416 if (inb(ports[i] + 9) != 0x80)
417 continue;
418 else
419 overrides[current_override].NCR5380_map_name = ports[i];
420 } else
421 continue;
422 }
423 else
424 {
425 /* Not a 53C400A style setup - just grab */
426 if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
427 continue;
428 region_size = NCR5380_region_size;
429 }
430 #else
431 base = overrides[current_override].NCR5380_map_name;
432 if (!request_mem_region(base, NCR5380_region_size, "ncr5380"))
433 continue;
434 iomem = ioremap(base, NCR5380_region_size);
435 if (!iomem) {
436 release_mem_region(base, NCR5380_region_size);
437 continue;
438 }
439 #endif
440 instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
441 if (instance == NULL) {
442 #ifndef CONFIG_SCSI_G_NCR5380_MEM
443 release_region(overrides[current_override].NCR5380_map_name, region_size);
444 #else
445 iounmap(iomem);
446 release_mem_region(base, NCR5380_region_size);
447 #endif
448 continue;
449 }
450
451 instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
452 #ifndef CONFIG_SCSI_G_NCR5380_MEM
453 instance->n_io_port = region_size;
454 #else
455 ((struct NCR5380_hostdata *)instance->hostdata).iomem = iomem;
456 #endif
457
458 NCR5380_init(instance, flags);
459
460 if (overrides[current_override].irq != IRQ_AUTO)
461 instance->irq = overrides[current_override].irq;
462 else
463 instance->irq = NCR5380_probe_irq(instance, 0xffff);
464
465 if (instance->irq != SCSI_IRQ_NONE)
466 if (request_irq(instance->irq, generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", instance)) {
467 printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
468 instance->irq = SCSI_IRQ_NONE;
469 }
470
471 if (instance->irq == SCSI_IRQ_NONE) {
472 printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
473 printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
474 }
475
476 printk(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
477 if (instance->irq == SCSI_IRQ_NONE)
478 printk(" interrupts disabled");
479 else
480 printk(" irq %d", instance->irq);
481 printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
482 NCR5380_print_options(instance);
483 printk("\n");
484
485 ++current_override;
486 ++count;
487 }
488 return count;
489 }
490
491 /**
492 * generic_NCR5380_info - reporting string
493 * @host: NCR5380 to report on
494 *
495 * Report driver information for the NCR5380
496 */
497
498 const char *generic_NCR5380_info(struct Scsi_Host *host)
499 {
500 static const char string[] = "Generic NCR5380/53C400 Driver";
501 return string;
502 }
503
504 /**
505 * generic_NCR5380_release_resources - free resources
506 * @instance: host adapter to clean up
507 *
508 * Free the generic interface resources from this adapter.
509 *
510 * Locks: none
511 */
512
513 int generic_NCR5380_release_resources(struct Scsi_Host *instance)
514 {
515 NCR5380_local_declare();
516 NCR5380_setup(instance);
517
518 if (instance->irq != SCSI_IRQ_NONE)
519 free_irq(instance->irq, NULL);
520 NCR5380_exit(instance);
521
522 #ifndef CONFIG_SCSI_G_NCR5380_MEM
523 release_region(instance->NCR5380_instance_name, instance->n_io_port);
524 #else
525 iounmap(((struct NCR5380_hostdata *)instance->hostdata).iomem);
526 release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
527 #endif
528
529
530 return 0;
531 }
532
533 #ifdef BIOSPARAM
534 /**
535 * generic_NCR5380_biosparam
536 * @disk: disk to compute geometry for
537 * @dev: device identifier for this disk
538 * @ip: sizes to fill in
539 *
540 * Generates a BIOS / DOS compatible H-C-S mapping for the specified
541 * device / size.
542 *
543 * XXX Most SCSI boards use this mapping, I could be incorrect. Someone
544 * using hard disks on a trantor should verify that this mapping
545 * corresponds to that used by the BIOS / ASPI driver by running the linux
546 * fdisk program and matching the H_C_S coordinates to what DOS uses.
547 *
548 * Locks: none
549 */
550
551 static int
552 generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
553 sector_t capacity, int *ip)
554 {
555 ip[0] = 64;
556 ip[1] = 32;
557 ip[2] = capacity >> 11;
558 return 0;
559 }
560 #endif
561
562 #if NCR53C400_PSEUDO_DMA
563
564 /**
565 * NCR5380_pread - pseudo DMA read
566 * @instance: adapter to read from
567 * @dst: buffer to read into
568 * @len: buffer length
569 *
570 * Perform a psuedo DMA mode read from an NCR53C400 or equivalent
571 * controller
572 */
573
574 static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
575 {
576 int blocks = len / 128;
577 int start = 0;
578 int bl;
579
580 NCR5380_local_declare();
581 NCR5380_setup(instance);
582
583 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
584 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
585 while (1) {
586 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
587 break;
588 }
589 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
590 printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
591 return -1;
592 }
593 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
594
595 #ifndef CONFIG_SCSI_G_NCR5380_MEM
596 {
597 int i;
598 for (i = 0; i < 128; i++)
599 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
600 }
601 #else
602 /* implies CONFIG_SCSI_G_NCR5380_MEM */
603 memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
604 #endif
605 start += 128;
606 blocks--;
607 }
608
609 if (blocks) {
610 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
611 {
612 // FIXME - no timeout
613 }
614
615 #ifndef CONFIG_SCSI_G_NCR5380_MEM
616 {
617 int i;
618 for (i = 0; i < 128; i++)
619 dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
620 }
621 #else
622 /* implies CONFIG_SCSI_G_NCR5380_MEM */
623 memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
624 #endif
625 start += 128;
626 blocks--;
627 }
628
629 if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
630 printk("53C400r: no 53C80 gated irq after transfer");
631
632 #if 0
633 /*
634 * DON'T DO THIS - THEY NEVER ARRIVE!
635 */
636 printk("53C400r: Waiting for 53C80 registers\n");
637 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
638 ;
639 #endif
640 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
641 printk(KERN_ERR "53C400r: no end dma signal\n");
642
643 NCR5380_write(MODE_REG, MR_BASE);
644 NCR5380_read(RESET_PARITY_INTERRUPT_REG);
645 return 0;
646 }
647
648 /**
649 * NCR5380_write - pseudo DMA write
650 * @instance: adapter to read from
651 * @dst: buffer to read into
652 * @len: buffer length
653 *
654 * Perform a psuedo DMA mode read from an NCR53C400 or equivalent
655 * controller
656 */
657
658 static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
659 {
660 int blocks = len / 128;
661 int start = 0;
662 int bl;
663 int i;
664
665 NCR5380_local_declare();
666 NCR5380_setup(instance);
667
668 NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
669 NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
670 while (1) {
671 if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
672 printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
673 return -1;
674 }
675
676 if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
677 break;
678 }
679 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
680 ; // FIXME - timeout
681 #ifndef CONFIG_SCSI_G_NCR5380_MEM
682 {
683 for (i = 0; i < 128; i++)
684 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
685 }
686 #else
687 /* implies CONFIG_SCSI_G_NCR5380_MEM */
688 memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
689 #endif
690 start += 128;
691 blocks--;
692 }
693 if (blocks) {
694 while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
695 ; // FIXME - no timeout
696
697 #ifndef CONFIG_SCSI_G_NCR5380_MEM
698 {
699 for (i = 0; i < 128; i++)
700 NCR5380_write(C400_HOST_BUFFER, src[start + i]);
701 }
702 #else
703 /* implies CONFIG_SCSI_G_NCR5380_MEM */
704 memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
705 #endif
706 start += 128;
707 blocks--;
708 }
709
710 #if 0
711 printk("53C400w: waiting for registers to be available\n");
712 THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
713 printk("53C400w: Got em\n");
714 #endif
715
716 /* Let's wait for this instead - could be ugly */
717 /* All documentation says to check for this. Maybe my hardware is too
718 * fast. Waiting for it seems to work fine! KLL
719 */
720 while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
721 ; // FIXME - no timeout
722
723 /*
724 * I know. i is certainly != 0 here but the loop is new. See previous
725 * comment.
726 */
727 if (i) {
728 if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
729 printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
730 } else
731 printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
732
733 #if 0
734 if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
735 printk(KERN_ERR "53C400w: no end dma signal\n");
736 }
737 #endif
738 while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
739 ; // TIMEOUT
740 return 0;
741 }
742 #endif /* PSEUDO_DMA */
743
744 /*
745 * Include the NCR5380 core code that we build our driver around
746 */
747
748 #include "NCR5380.c"
749
750 #define PRINTP(x) len += sprintf(buffer+len, x)
751 #define ANDP ,
752
753 static int sprint_opcode(char *buffer, int len, int opcode)
754 {
755 int start = len;
756 PRINTP("0x%02x " ANDP opcode);
757 return len - start;
758 }
759
760 static int sprint_command(char *buffer, int len, unsigned char *command)
761 {
762 int i, s, start = len;
763 len += sprint_opcode(buffer, len, command[0]);
764 for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
765 PRINTP("%02x " ANDP command[i]);
766 PRINTP("\n");
767 return len - start;
768 }
769
770 /**
771 * sprintf_Scsi_Cmnd - print a scsi command
772 * @buffer: buffr to print into
773 * @len: buffer length
774 * @cmd: SCSI command block
775 *
776 * Print out the target and command data in hex
777 */
778
779 static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd)
780 {
781 int start = len;
782 PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
783 PRINTP(" command = ");
784 len += sprint_command(buffer, len, cmd->cmnd);
785 return len - start;
786 }
787
788 /**
789 * generic_NCR5380_proc_info - /proc for NCR5380 driver
790 * @buffer: buffer to print into
791 * @start: start position
792 * @offset: offset into buffer
793 * @len: length
794 * @hostno: instance to affect
795 * @inout: read/write
796 *
797 * Provide the procfs information for the 5380 controller. We fill
798 * this with useful debugging information including the commands
799 * being executed, disconnected command queue and the statistical
800 * data
801 *
802 * Locks: global cli/lock for queue walk
803 */
804
805 static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, char **start, off_t offset, int length, int inout)
806 {
807 int len = 0;
808 NCR5380_local_declare();
809 unsigned long flags;
810 unsigned char status;
811 int i;
812 Scsi_Cmnd *ptr;
813 struct NCR5380_hostdata *hostdata;
814 #ifdef NCR5380_STATS
815 struct scsi_device *dev;
816 extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
817 #endif
818
819 NCR5380_setup(scsi_ptr);
820 hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
821
822 spin_lock_irqsave(scsi_ptr->host_lock, flags);
823 PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
824 PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
825 PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
826 #ifdef NCR53C400
827 PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
828 PRINTP("NCR53C400 card%s detected\n" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
829 # if NCR53C400_PSEUDO_DMA
830 PRINTP("NCR53C400 pseudo DMA used\n");
831 # endif
832 #else
833 PRINTP("NO NCR53C400 driver extensions\n");
834 #endif
835 PRINTP("Using %s mapping at %s 0x%lx, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
836 if (scsi_ptr->irq == SCSI_IRQ_NONE)
837 PRINTP("no interrupt\n");
838 else
839 PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
840
841 #ifdef NCR5380_STATS
842 if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
843 PRINTP("There are commands pending, transfer rates may be crud\n");
844 if (hostdata->pendingr)
845 PRINTP(" %d pending reads" ANDP hostdata->pendingr);
846 if (hostdata->pendingw)
847 PRINTP(" %d pending writes" ANDP hostdata->pendingw);
848 if (hostdata->pendingr || hostdata->pendingw)
849 PRINTP("\n");
850 shost_for_each_device(dev, scsi_ptr) {
851 unsigned long br = hostdata->bytes_read[dev->id];
852 unsigned long bw = hostdata->bytes_write[dev->id];
853 long tr = hostdata->time_read[dev->id] / HZ;
854 long tw = hostdata->time_write[dev->id] / HZ;
855
856 PRINTP(" T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
857 for (i = 0; i < 8; i++)
858 if (dev->vendor[i] >= 0x20)
859 *(buffer + (len++)) = dev->vendor[i];
860 *(buffer + (len++)) = ' ';
861 for (i = 0; i < 16; i++)
862 if (dev->model[i] >= 0x20)
863 *(buffer + (len++)) = dev->model[i];
864 *(buffer + (len++)) = ' ';
865 for (i = 0; i < 4; i++)
866 if (dev->rev[i] >= 0x20)
867 *(buffer + (len++)) = dev->rev[i];
868 *(buffer + (len++)) = ' ';
869
870 PRINTP("\n%10ld kb read in %5ld secs" ANDP br / 1024 ANDP tr);
871 if (tr)
872 PRINTP(" @ %5ld bps" ANDP br / tr);
873
874 PRINTP("\n%10ld kb written in %5ld secs" ANDP bw / 1024 ANDP tw);
875 if (tw)
876 PRINTP(" @ %5ld bps" ANDP bw / tw);
877 PRINTP("\n");
878 }
879 #endif
880
881 status = NCR5380_read(STATUS_REG);
882 if (!(status & SR_REQ))
883 PRINTP("REQ not asserted, phase unknown.\n");
884 else {
885 for (i = 0; (phases[i].value != PHASE_UNKNOWN) && (phases[i].value != (status & PHASE_MASK)); ++i);
886 PRINTP("Phase %s\n" ANDP phases[i].name);
887 }
888
889 if (!hostdata->connected) {
890 PRINTP("No currently connected command\n");
891 } else {
892 len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
893 }
894
895 PRINTP("issue_queue\n");
896
897 for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
898 len += sprint_Scsi_Cmnd(buffer, len, ptr);
899
900 PRINTP("disconnected_queue\n");
901
902 for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
903 len += sprint_Scsi_Cmnd(buffer, len, ptr);
904
905 *start = buffer + offset;
906 len -= offset;
907 if (len > length)
908 len = length;
909 spin_unlock_irqrestore(scsi_ptr->host_lock, flags);
910 return len;
911 }
912
913 #undef PRINTP
914 #undef ANDP
915
916 static struct scsi_host_template driver_template = {
917 .proc_info = generic_NCR5380_proc_info,
918 .name = "Generic NCR5380/NCR53C400 Scsi Driver",
919 .detect = generic_NCR5380_detect,
920 .release = generic_NCR5380_release_resources,
921 .info = generic_NCR5380_info,
922 .queuecommand = generic_NCR5380_queue_command,
923 .eh_abort_handler = generic_NCR5380_abort,
924 .eh_bus_reset_handler = generic_NCR5380_bus_reset,
925 .bios_param = NCR5380_BIOSPARAM,
926 .can_queue = CAN_QUEUE,
927 .this_id = 7,
928 .sg_tablesize = SG_ALL,
929 .cmd_per_lun = CMD_PER_LUN,
930 .use_clustering = DISABLE_CLUSTERING,
931 };
932 #include <linux/module.h>
933 #include "scsi_module.c"
934
935 module_param(ncr_irq, int, 0);
936 module_param(ncr_dma, int, 0);
937 module_param(ncr_addr, int, 0);
938 module_param(ncr_5380, int, 0);
939 module_param(ncr_53c400, int, 0);
940 module_param(ncr_53c400a, int, 0);
941 module_param(dtc_3181e, int, 0);
942 MODULE_LICENSE("GPL");
943
944
945 static struct isapnp_device_id id_table[] __devinitdata = {
946 {
947 ISAPNP_ANY_ID, ISAPNP_ANY_ID,
948 ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
949 0},
950 {0}
951 };
952
953 MODULE_DEVICE_TABLE(isapnp, id_table);
954
955
956 __setup("ncr5380=", do_NCR5380_setup);
957 __setup("ncr53c400=", do_NCR53C400_setup);
958 __setup("ncr53c400a=", do_NCR53C400A_setup);
959 __setup("dtc3181e=", do_DTC3181E_setup);
kernel source for telekom puls (alcatel/mediatek)