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49#include <linux/module.h>
50#include <linux/kernel.h>
51#include <linux/string.h>
52#include <linux/ioport.h>
53#include <linux/in.h>
54#include <linux/pci.h>
55#include <linux/proc_fs.h>
56#include <linux/interrupt.h>
57#include <linux/blkdev.h>
58#include <linux/spinlock.h>
59#include <linux/delay.h>
60
61#include <asm/io.h>
62
63#include <scsi/scsi.h>
64#include <scsi/scsi_cmnd.h>
65#include <scsi/scsi_device.h>
66#include <scsi/scsi_host.h>
67
68#include "eata_generic.h"
69#include "eata_pio.h"
70
71
72static unsigned int ISAbases[MAXISA] = {
73 0x1F0, 0x170, 0x330, 0x230
74};
75
76static unsigned int ISAirqs[MAXISA] = {
77 14, 12, 15, 11
78};
79
80static unsigned char EISAbases[] = {
81 1, 1, 1, 1, 1, 1, 1, 1,
82 1, 1, 1, 1, 1, 1, 1, 1
83};
84
85static unsigned int registered_HBAs;
86static struct Scsi_Host *last_HBA;
87static struct Scsi_Host *first_HBA;
88static unsigned char reg_IRQ[16];
89static unsigned char reg_IRQL[16];
90static unsigned long int_counter;
91static unsigned long queue_counter;
92
93static struct scsi_host_template driver_template;
94
95static int eata_pio_show_info(struct seq_file *m, struct Scsi_Host *shost)
96{
97 seq_printf(m, "EATA (Extended Attachment) PIO driver version: "
98 "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
99 seq_printf(m, "queued commands: %10ld\n"
100 "processed interrupts:%10ld\n", queue_counter, int_counter);
101 seq_printf(m, "\nscsi%-2d: HBA %.10s\n",
102 shost->host_no, SD(shost)->name);
103 seq_printf(m, "Firmware revision: v%s\n",
104 SD(shost)->revision);
105 seq_puts(m, "IO: PIO\n");
106 seq_printf(m, "Base IO : %#.4x\n", (u32) shost->base);
107 seq_printf(m, "Host Bus: %s\n",
108 (SD(shost)->bustype == 'P')?"PCI ":
109 (SD(shost)->bustype == 'E')?"EISA":"ISA ");
110 return 0;
111}
112
113static int eata_pio_release(struct Scsi_Host *sh)
114{
115 hostdata *hd = SD(sh);
116 if (sh->irq && reg_IRQ[sh->irq] == 1)
117 free_irq(sh->irq, NULL);
118 else
119 reg_IRQ[sh->irq]--;
120 if (SD(sh)->channel == 0) {
121 if (sh->io_port && sh->n_io_port)
122 release_region(sh->io_port, sh->n_io_port);
123 }
124
125 if (hd->pdev)
126 pci_dev_put(hd->pdev);
127 return 1;
128}
129
130static void IncStat(struct scsi_pointer *SCp, unsigned int Increment)
131{
132 SCp->ptr += Increment;
133 if ((SCp->this_residual -= Increment) == 0) {
134 if ((--SCp->buffers_residual) == 0)
135 SCp->Status = 0;
136 else {
137 SCp->buffer++;
138 SCp->ptr = sg_virt(SCp->buffer);
139 SCp->this_residual = SCp->buffer->length;
140 }
141 }
142}
143
144static irqreturn_t eata_pio_int_handler(int irq, void *dev_id);
145
146static irqreturn_t do_eata_pio_int_handler(int irq, void *dev_id)
147{
148 unsigned long flags;
149 struct Scsi_Host *dev = dev_id;
150 irqreturn_t ret;
151
152 spin_lock_irqsave(dev->host_lock, flags);
153 ret = eata_pio_int_handler(irq, dev_id);
154 spin_unlock_irqrestore(dev->host_lock, flags);
155 return ret;
156}
157
158static irqreturn_t eata_pio_int_handler(int irq, void *dev_id)
159{
160 unsigned int eata_stat = 0xfffff;
161 struct scsi_cmnd *cmd;
162 hostdata *hd;
163 struct eata_ccb *cp;
164 unsigned long base;
165 unsigned int x, z;
166 struct Scsi_Host *sh;
167 unsigned short zwickel = 0;
168 unsigned char stat, odd;
169 irqreturn_t ret = IRQ_NONE;
170
171 for (x = 1, sh = first_HBA; x <= registered_HBAs; x++, sh = SD(sh)->prev)
172 {
173 if (sh->irq != irq)
174 continue;
175 if (inb(sh->base + HA_RSTATUS) & HA_SBUSY)
176 continue;
177
178 int_counter++;
179 ret = IRQ_HANDLED;
180
181 hd = SD(sh);
182
183 cp = &hd->ccb[0];
184 cmd = cp->cmd;
185 base = cmd->device->host->base;
186
187 do {
188 stat = inb(base + HA_RSTATUS);
189 if (stat & HA_SDRQ) {
190 if (cp->DataIn) {
191 z = 256;
192 odd = 0;
193 while ((cmd->SCp.Status) && ((z > 0) || (odd))) {
194 if (odd) {
195 *(cmd->SCp.ptr) = zwickel >> 8;
196 IncStat(&cmd->SCp, 1);
197 odd = 0;
198 }
199 x = min_t(unsigned int, z, cmd->SCp.this_residual / 2);
200 insw(base + HA_RDATA, cmd->SCp.ptr, x);
201 z -= x;
202 IncStat(&cmd->SCp, 2 * x);
203 if ((z > 0) && (cmd->SCp.this_residual == 1)) {
204 zwickel = inw(base + HA_RDATA);
205 *(cmd->SCp.ptr) = zwickel & 0xff;
206 IncStat(&cmd->SCp, 1);
207 z--;
208 odd = 1;
209 }
210 }
211 while (z > 0) {
212 zwickel = inw(base + HA_RDATA);
213 z--;
214 }
215 } else {
216
217 odd = 0;
218 z = 256;
219 while ((cmd->SCp.Status) && ((z > 0) || (odd))) {
220 if (odd) {
221 zwickel += *(cmd->SCp.ptr) << 8;
222 IncStat(&cmd->SCp, 1);
223 outw(zwickel, base + HA_RDATA);
224 z--;
225 odd = 0;
226 }
227 x = min_t(unsigned int, z, cmd->SCp.this_residual / 2);
228 outsw(base + HA_RDATA, cmd->SCp.ptr, x);
229 z -= x;
230 IncStat(&cmd->SCp, 2 * x);
231 if ((z > 0) && (cmd->SCp.this_residual == 1)) {
232 zwickel = *(cmd->SCp.ptr);
233 zwickel &= 0xff;
234 IncStat(&cmd->SCp, 1);
235 odd = 1;
236 }
237 }
238 while (z > 0 || odd) {
239 outw(zwickel, base + HA_RDATA);
240 z--;
241 odd = 0;
242 }
243 }
244 }
245 }
246 while ((stat & HA_SDRQ) || ((stat & HA_SMORE) && hd->moresupport));
247
248
249
250
251 if (stat & HA_SBUSY)
252 break;
253
254
255
256
257 if (!(inb(base + HA_RSTATUS) & HA_SERROR)) {
258 cmd->result = (DID_OK << 16);
259 hd->devflags |= (1 << cp->cp_id);
260 } else if (hd->devflags & (1 << cp->cp_id))
261 cmd->result = (DID_OK << 16) + 0x02;
262 else
263 cmd->result = (DID_NO_CONNECT << 16);
264
265 if (cp->status == LOCKED) {
266 cp->status = FREE;
267 eata_stat = inb(base + HA_RSTATUS);
268 printk(KERN_CRIT "eata_pio: int_handler, freeing locked " "queueslot\n");
269 return ret;
270 }
271#if DBG_INTR2
272 if (stat != 0x50)
273 printk(KERN_DEBUG "stat: %#.2x, result: %#.8x\n", stat, cmd->result);
274#endif
275
276 cp->status = FREE;
277
278 cmd->scsi_done(cmd);
279 }
280
281 return ret;
282}
283
284static inline unsigned int eata_pio_send_command(unsigned long base, unsigned char command)
285{
286 unsigned int loop = 50;
287
288 while (inb(base + HA_RSTATUS) & HA_SBUSY)
289 if (--loop == 0)
290 return 1;
291
292
293
294
295
296 outb(HA_CTRL_8HEADS, base + HA_CTRLREG);
297
298 outb(command, base + HA_WCOMMAND);
299 return 0;
300}
301
302static int eata_pio_queue_lck(struct scsi_cmnd *cmd,
303 void (*done)(struct scsi_cmnd *))
304{
305 unsigned int x, y;
306 unsigned long base;
307
308 hostdata *hd;
309 struct Scsi_Host *sh;
310 struct eata_ccb *cp;
311
312 queue_counter++;
313
314 hd = HD(cmd);
315 sh = cmd->device->host;
316 base = sh->base;
317
318
319
320 y = x = 0;
321
322 if (hd->ccb[y].status != FREE) {
323
324 DBG(DBG_QUEUE, printk(KERN_EMERG "can_queue %d, x %d, y %d\n", sh->can_queue, x, y));
325#if DEBUG_EATA
326 panic(KERN_EMERG "eata_pio: run out of queue slots cmdno:%ld " "intrno: %ld\n", queue_counter, int_counter);
327#else
328 panic(KERN_EMERG "eata_pio: run out of queue slots....\n");
329#endif
330 }
331
332 cp = &hd->ccb[y];
333
334 memset(cp, 0, sizeof(struct eata_ccb));
335
336 cp->status = USED;
337
338 DBG(DBG_QUEUE, scmd_printk(KERN_DEBUG, cmd,
339 "eata_pio_queue 0x%p, y %d\n", cmd, y));
340
341 cmd->scsi_done = (void *) done;
342
343 if (cmd->sc_data_direction == DMA_TO_DEVICE)
344 cp->DataOut = 1;
345 else
346 cp->DataIn = 0;
347
348 cp->Interpret = (cmd->device->id == hd->hostid);
349 cp->cp_datalen = cpu_to_be32(scsi_bufflen(cmd));
350 cp->Auto_Req_Sen = 0;
351 cp->cp_reqDMA = 0;
352 cp->reqlen = 0;
353
354 cp->cp_id = cmd->device->id;
355 cp->cp_lun = cmd->device->lun;
356 cp->cp_dispri = 0;
357 cp->cp_identify = 1;
358 memcpy(cp->cp_cdb, cmd->cmnd, COMMAND_SIZE(*cmd->cmnd));
359
360 cp->cp_statDMA = 0;
361
362 cp->cp_viraddr = cp;
363 cp->cmd = cmd;
364 cmd->host_scribble = (char *) &hd->ccb[y];
365
366 if (!scsi_bufflen(cmd)) {
367 cmd->SCp.buffers_residual = 1;
368 cmd->SCp.ptr = NULL;
369 cmd->SCp.this_residual = 0;
370 cmd->SCp.buffer = NULL;
371 } else {
372 cmd->SCp.buffer = scsi_sglist(cmd);
373 cmd->SCp.buffers_residual = scsi_sg_count(cmd);
374 cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
375 cmd->SCp.this_residual = cmd->SCp.buffer->length;
376 }
377 cmd->SCp.Status = (cmd->SCp.this_residual != 0);
378
379
380 if (eata_pio_send_command(base, EATA_CMD_PIO_SEND_CP)) {
381 cmd->result = DID_BUS_BUSY << 16;
382 scmd_printk(KERN_NOTICE, cmd,
383 "eata_pio_queue pid 0x%p, HBA busy, "
384 "returning DID_BUS_BUSY, done.\n", cmd);
385 done(cmd);
386 cp->status = FREE;
387 return 0;
388 }
389
390 while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
391 cpu_relax();
392 outsw(base + HA_RDATA, cp, hd->cplen);
393 outb(EATA_CMD_PIO_TRUNC, base + HA_WCOMMAND);
394 for (x = 0; x < hd->cppadlen; x++)
395 outw(0, base + HA_RDATA);
396
397 DBG(DBG_QUEUE, scmd_printk(KERN_DEBUG, cmd,
398 "Queued base %#.4lx cmd: 0x%p "
399 "slot %d irq %d\n", sh->base, cmd, y, sh->irq));
400
401 return 0;
402}
403
404static DEF_SCSI_QCMD(eata_pio_queue)
405
406static int eata_pio_abort(struct scsi_cmnd *cmd)
407{
408 unsigned int loop = 100;
409
410 DBG(DBG_ABNORM, scmd_printk(KERN_WARNING, cmd,
411 "eata_pio_abort called pid: 0x%p\n", cmd));
412
413 while (inb(cmd->device->host->base + HA_RAUXSTAT) & HA_ABUSY)
414 if (--loop == 0) {
415 printk(KERN_WARNING "eata_pio: abort, timeout error.\n");
416 return FAILED;
417 }
418 if (CD(cmd)->status == FREE) {
419 DBG(DBG_ABNORM, printk(KERN_WARNING "Returning: SCSI_ABORT_NOT_RUNNING\n"));
420 return FAILED;
421 }
422 if (CD(cmd)->status == USED) {
423 DBG(DBG_ABNORM, printk(KERN_WARNING "Returning: SCSI_ABORT_BUSY\n"));
424
425 return FAILED;
426 }
427 if (CD(cmd)->status == RESET) {
428 printk(KERN_WARNING "eata_pio: abort, command reset error.\n");
429 return FAILED;
430 }
431 if (CD(cmd)->status == LOCKED) {
432 DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio: abort, queue slot " "locked.\n"));
433 return FAILED;
434 }
435 panic("eata_pio: abort: invalid slot status\n");
436}
437
438static int eata_pio_host_reset(struct scsi_cmnd *cmd)
439{
440 unsigned int x, limit = 0;
441 unsigned char success = 0;
442 struct scsi_cmnd *sp;
443 struct Scsi_Host *host = cmd->device->host;
444
445 DBG(DBG_ABNORM, scmd_printk(KERN_WARNING, cmd,
446 "eata_pio_reset called\n"));
447
448 spin_lock_irq(host->host_lock);
449
450 if (HD(cmd)->state == RESET) {
451 printk(KERN_WARNING "eata_pio_reset: exit, already in reset.\n");
452 spin_unlock_irq(host->host_lock);
453 return FAILED;
454 }
455
456
457
458 for (x = 0; x < cmd->device->host->can_queue; x++) {
459
460 if (HD(cmd)->ccb[x].status == FREE)
461 continue;
462
463 sp = HD(cmd)->ccb[x].cmd;
464 HD(cmd)->ccb[x].status = RESET;
465 printk(KERN_WARNING "eata_pio_reset: slot %d in reset.\n", x);
466
467 if (sp == NULL)
468 panic("eata_pio_reset: slot %d, sp==NULL.\n", x);
469 }
470
471
472 outb(EATA_CMD_RESET, cmd->device->host->base + HA_WCOMMAND);
473
474 DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: board reset done.\n"));
475 HD(cmd)->state = RESET;
476
477 spin_unlock_irq(host->host_lock);
478 msleep(3000);
479 spin_lock_irq(host->host_lock);
480
481 DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: interrupts disabled, " "loops %d.\n", limit));
482
483 for (x = 0; x < cmd->device->host->can_queue; x++) {
484
485
486 if (HD(cmd)->ccb[x].status != RESET)
487 continue;
488
489 sp = HD(cmd)->ccb[x].cmd;
490 sp->result = DID_RESET << 16;
491
492
493 printk(KERN_WARNING "eata_pio_reset: reset ccb %d.\n", x);
494 HD(cmd)->ccb[x].status = FREE;
495
496 sp->scsi_done(sp);
497 }
498
499 HD(cmd)->state = 0;
500
501 spin_unlock_irq(host->host_lock);
502
503 if (success) {
504 DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: exit, success.\n"));
505 return SUCCESS;
506 } else {
507 DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: exit, wakeup.\n"));
508 return FAILED;
509 }
510}
511
512static char *get_pio_board_data(unsigned long base, unsigned int irq, unsigned int id, unsigned long cplen, unsigned short cppadlen)
513{
514 struct eata_ccb cp;
515 static char buff[256];
516 int z;
517
518 memset(&cp, 0, sizeof(struct eata_ccb));
519 memset(buff, 0, sizeof(buff));
520
521 cp.DataIn = 1;
522 cp.Interpret = 1;
523
524 cp.cp_datalen = cpu_to_be32(254);
525 cp.cp_dataDMA = cpu_to_be32(0);
526
527 cp.cp_id = id;
528 cp.cp_lun = 0;
529
530 cp.cp_cdb[0] = INQUIRY;
531 cp.cp_cdb[1] = 0;
532 cp.cp_cdb[2] = 0;
533 cp.cp_cdb[3] = 0;
534 cp.cp_cdb[4] = 254;
535 cp.cp_cdb[5] = 0;
536
537 if (eata_pio_send_command(base, EATA_CMD_PIO_SEND_CP))
538 return NULL;
539
540 while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
541 cpu_relax();
542
543 outsw(base + HA_RDATA, &cp, cplen);
544 outb(EATA_CMD_PIO_TRUNC, base + HA_WCOMMAND);
545 for (z = 0; z < cppadlen; z++)
546 outw(0, base + HA_RDATA);
547
548 while (inb(base + HA_RSTATUS) & HA_SBUSY)
549 cpu_relax();
550
551 if (inb(base + HA_RSTATUS) & HA_SERROR)
552 return NULL;
553 else if (!(inb(base + HA_RSTATUS) & HA_SDRQ))
554 return NULL;
555 else {
556 insw(base + HA_RDATA, &buff, 127);
557 while (inb(base + HA_RSTATUS) & HA_SDRQ)
558 inw(base + HA_RDATA);
559 return buff;
560 }
561}
562
563static int get_pio_conf_PIO(unsigned long base, struct get_conf *buf)
564{
565 unsigned long loop = HZ / 2;
566 int z;
567 unsigned short *p;
568
569 if (!request_region(base, 9, "eata_pio"))
570 return 0;
571
572 memset(buf, 0, sizeof(struct get_conf));
573
574 while (inb(base + HA_RSTATUS) & HA_SBUSY)
575 if (--loop == 0)
576 goto fail;
577
578 DBG(DBG_PIO && DBG_PROBE, printk(KERN_DEBUG "Issuing PIO READ CONFIG to HBA at %#lx\n", base));
579 eata_pio_send_command(base, EATA_CMD_PIO_READ_CONFIG);
580
581 loop = 50;
582 for (p = (unsigned short *) buf; (long) p <= ((long) buf + (sizeof(struct get_conf) / 2)); p++) {
583 while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
584 if (--loop == 0)
585 goto fail;
586
587 loop = 50;
588 *p = inw(base + HA_RDATA);
589 }
590 if (inb(base + HA_RSTATUS) & HA_SERROR) {
591 DBG(DBG_PROBE, printk("eata_dma: get_conf_PIO, error during "
592 "transfer for HBA at %lx\n", base));
593 goto fail;
594 }
595
596 if (cpu_to_be32(EATA_SIGNATURE) != buf->signature)
597 goto fail;
598
599 DBG(DBG_PIO && DBG_PROBE, printk(KERN_NOTICE "EATA Controller found "
600 "at %#4lx EATA Level: %x\n",
601 base, (unsigned int) (buf->version)));
602
603 while (inb(base + HA_RSTATUS) & HA_SDRQ)
604 inw(base + HA_RDATA);
605
606 if (!ALLOW_DMA_BOARDS) {
607 for (z = 0; z < MAXISA; z++)
608 if (base == ISAbases[z]) {
609 buf->IRQ = ISAirqs[z];
610 break;
611 }
612 }
613
614 return 1;
615
616 fail:
617 release_region(base, 9);
618 return 0;
619}
620
621static void print_pio_config(struct get_conf *gc)
622{
623 printk("Please check values: (read config data)\n");
624 printk("LEN: %d ver:%d OCS:%d TAR:%d TRNXFR:%d MORES:%d\n", be32_to_cpu(gc->len), gc->version, gc->OCS_enabled, gc->TAR_support, gc->TRNXFR, gc->MORE_support);
625 printk("HAAV:%d SCSIID0:%d ID1:%d ID2:%d QUEUE:%d SG:%d SEC:%d\n", gc->HAA_valid, gc->scsi_id[3], gc->scsi_id[2], gc->scsi_id[1], be16_to_cpu(gc->queuesiz), be16_to_cpu(gc->SGsiz), gc->SECOND);
626 printk("IRQ:%d IRQT:%d FORCADR:%d MCH:%d RIDQ:%d\n", gc->IRQ, gc->IRQ_TR, gc->FORCADR, gc->MAX_CHAN, gc->ID_qest);
627}
628
629static unsigned int print_selftest(unsigned int base)
630{
631 unsigned char buffer[512];
632#ifdef VERBOSE_SETUP
633 int z;
634#endif
635
636 printk("eata_pio: executing controller self test & setup...\n");
637 while (inb(base + HA_RSTATUS) & HA_SBUSY);
638 outb(EATA_CMD_PIO_SETUPTEST, base + HA_WCOMMAND);
639 do {
640 while (inb(base + HA_RSTATUS) & HA_SBUSY)
641 ;
642 if (inb(base + HA_RSTATUS) & HA_SDRQ) {
643 insw(base + HA_RDATA, &buffer, 256);
644#ifdef VERBOSE_SETUP
645
646 for (z = 0; z < 511 && buffer[z]; z++)
647 if (buffer[z] != 7)
648 printk("%c", buffer[z]);
649#endif
650 }
651 } while (inb(base + HA_RSTATUS) & (HA_SBUSY | HA_SDRQ));
652
653 return (!(inb(base + HA_RSTATUS) & HA_SERROR));
654}
655
656static int register_pio_HBA(long base, struct get_conf *gc, struct pci_dev *pdev)
657{
658 unsigned long size = 0;
659 char *buff;
660 unsigned long cplen;
661 unsigned short cppadlen;
662 struct Scsi_Host *sh;
663 hostdata *hd;
664
665 DBG(DBG_REGISTER, print_pio_config(gc));
666
667 if (gc->DMA_support) {
668 printk("HBA at %#.4lx supports DMA. Please use EATA-DMA driver.\n", base);
669 if (!ALLOW_DMA_BOARDS)
670 return 0;
671 }
672
673 if ((buff = get_pio_board_data(base, gc->IRQ, gc->scsi_id[3], cplen = (cpu_to_be32(gc->cplen) + 1) / 2, cppadlen = (cpu_to_be16(gc->cppadlen) + 1) / 2)) == NULL) {
674 printk("HBA at %#lx didn't react on INQUIRY. Sorry.\n", base);
675 return 0;
676 }
677
678 if (!print_selftest(base) && !ALLOW_DMA_BOARDS) {
679 printk("HBA at %#lx failed while performing self test & setup.\n", base);
680 return 0;
681 }
682
683 size = sizeof(hostdata) + (sizeof(struct eata_ccb) * be16_to_cpu(gc->queuesiz));
684
685 sh = scsi_register(&driver_template, size);
686 if (sh == NULL)
687 return 0;
688
689 if (!reg_IRQ[gc->IRQ]) {
690 if (!request_irq(gc->IRQ, do_eata_pio_int_handler, 0, "EATA-PIO", sh)) {
691 reg_IRQ[gc->IRQ]++;
692 if (!gc->IRQ_TR)
693 reg_IRQL[gc->IRQ] = 1;
694 } else {
695 printk("Couldn't allocate IRQ %d, Sorry.\n", gc->IRQ);
696 return 0;
697 }
698 } else {
699 if (reg_IRQL[gc->IRQ]) {
700 printk("Can't support more than one HBA on this IRQ,\n" " if the IRQ is edge triggered. Sorry.\n");
701 return 0;
702 } else
703 reg_IRQ[gc->IRQ]++;
704 }
705
706 hd = SD(sh);
707
708 memset(hd->ccb, 0, (sizeof(struct eata_ccb) * be16_to_cpu(gc->queuesiz)));
709 memset(hd->reads, 0, sizeof(hd->reads));
710
711 strlcpy(SD(sh)->vendor, &buff[8], sizeof(SD(sh)->vendor));
712 strlcpy(SD(sh)->name, &buff[16], sizeof(SD(sh)->name));
713 SD(sh)->revision[0] = buff[32];
714 SD(sh)->revision[1] = buff[33];
715 SD(sh)->revision[2] = buff[34];
716 SD(sh)->revision[3] = '.';
717 SD(sh)->revision[4] = buff[35];
718 SD(sh)->revision[5] = 0;
719
720 switch (be32_to_cpu(gc->len)) {
721 case 0x1c:
722 SD(sh)->EATA_revision = 'a';
723 break;
724 case 0x1e:
725 SD(sh)->EATA_revision = 'b';
726 break;
727 case 0x22:
728 SD(sh)->EATA_revision = 'c';
729 break;
730 case 0x24:
731 SD(sh)->EATA_revision = 'z';
732 break;
733 default:
734 SD(sh)->EATA_revision = '?';
735 }
736
737 if (be32_to_cpu(gc->len) >= 0x22) {
738 if (gc->is_PCI)
739 hd->bustype = IS_PCI;
740 else if (gc->is_EISA)
741 hd->bustype = IS_EISA;
742 else
743 hd->bustype = IS_ISA;
744 } else {
745 if (buff[21] == '4')
746 hd->bustype = IS_PCI;
747 else if (buff[21] == '2')
748 hd->bustype = IS_EISA;
749 else
750 hd->bustype = IS_ISA;
751 }
752
753 SD(sh)->cplen = cplen;
754 SD(sh)->cppadlen = cppadlen;
755 SD(sh)->hostid = gc->scsi_id[3];
756 SD(sh)->devflags = 1 << gc->scsi_id[3];
757 SD(sh)->moresupport = gc->MORE_support;
758 sh->unique_id = base;
759 sh->base = base;
760 sh->io_port = base;
761 sh->n_io_port = 9;
762 sh->irq = gc->IRQ;
763 sh->dma_channel = PIO;
764 sh->this_id = gc->scsi_id[3];
765 sh->can_queue = 1;
766 sh->cmd_per_lun = 1;
767 sh->sg_tablesize = SG_ALL;
768
769 hd->channel = 0;
770
771 hd->pdev = pci_dev_get(pdev);
772
773 sh->max_id = 8;
774 sh->max_lun = 8;
775
776 if (gc->SECOND)
777 hd->primary = 0;
778 else
779 hd->primary = 1;
780
781 hd->next = NULL;
782 hd->prev = last_HBA;
783 if (hd->prev != NULL)
784 SD(hd->prev)->next = sh;
785 last_HBA = sh;
786 if (first_HBA == NULL)
787 first_HBA = sh;
788 registered_HBAs++;
789 return (1);
790}
791
792static void find_pio_ISA(struct get_conf *buf)
793{
794 int i;
795
796 for (i = 0; i < MAXISA; i++) {
797 if (!ISAbases[i])
798 continue;
799 if (!get_pio_conf_PIO(ISAbases[i], buf))
800 continue;
801 if (!register_pio_HBA(ISAbases[i], buf, NULL))
802 release_region(ISAbases[i], 9);
803 else
804 ISAbases[i] = 0;
805 }
806 return;
807}
808
809static void find_pio_EISA(struct get_conf *buf)
810{
811 u32 base;
812 int i;
813
814#ifdef CHECKPAL
815 u8 pal1, pal2, pal3;
816#endif
817
818 for (i = 0; i < MAXEISA; i++) {
819 if (EISAbases[i]) {
820
821 base = 0x1c88 + (i * 0x1000);
822#ifdef CHECKPAL
823 pal1 = inb((u16) base - 8);
824 pal2 = inb((u16) base - 7);
825 pal3 = inb((u16) base - 6);
826
827 if (((pal1 == 0x12) && (pal2 == 0x14)) || ((pal1 == 0x38) && (pal2 == 0xa3) && (pal3 == 0x82)) || ((pal1 == 0x06) && (pal2 == 0x94) && (pal3 == 0x24))) {
828 DBG(DBG_PROBE, printk(KERN_NOTICE "EISA EATA id tags found: " "%x %x %x \n", (int) pal1, (int) pal2, (int) pal3));
829#endif
830 if (get_pio_conf_PIO(base, buf)) {
831 DBG(DBG_PROBE && DBG_EISA, print_pio_config(buf));
832 if (buf->IRQ) {
833 if (!register_pio_HBA(base, buf, NULL))
834 release_region(base, 9);
835 } else {
836 printk(KERN_NOTICE "eata_dma: No valid IRQ. HBA " "removed from list\n");
837 release_region(base, 9);
838 }
839 }
840
841 EISAbases[i] = 0;
842#ifdef CHECKPAL
843 }
844#endif
845 }
846 }
847 return;
848}
849
850static void find_pio_PCI(struct get_conf *buf)
851{
852#ifndef CONFIG_PCI
853 printk("eata_dma: kernel PCI support not enabled. Skipping scan for PCI HBAs.\n");
854#else
855 struct pci_dev *dev = NULL;
856 unsigned long base, x;
857
858 while ((dev = pci_get_device(PCI_VENDOR_ID_DPT, PCI_DEVICE_ID_DPT, dev)) != NULL) {
859 DBG(DBG_PROBE && DBG_PCI, printk("eata_pio: find_PCI, HBA at %s\n", pci_name(dev)));
860 if (pci_enable_device(dev))
861 continue;
862 pci_set_master(dev);
863 base = pci_resource_flags(dev, 0);
864 if (base & IORESOURCE_MEM) {
865 printk("eata_pio: invalid base address of device %s\n", pci_name(dev));
866 continue;
867 }
868 base = pci_resource_start(dev, 0);
869
870 if ((inb(base) == 0x12) && (inb(base + 1) == 0x14))
871 continue;
872 base += 0x10;
873 if (base != 0x1f8) {
874
875 if (get_pio_conf_PIO(base, buf)) {
876 if (buf->FORCADR) {
877 release_region(base, 9);
878 continue;
879 }
880
881
882
883
884
885
886 if (!register_pio_HBA(base, buf, dev)) {
887 release_region(base, 9);
888 continue;
889 }
890
891 if (base < 0x1000) {
892 for (x = 0; x < MAXISA; ++x) {
893 if (ISAbases[x] == base) {
894 ISAbases[x] = 0;
895 break;
896 }
897 }
898 } else if ((base & 0x0fff) == 0x0c88) {
899 x = (base >> 12) & 0x0f;
900 EISAbases[x] = 0;
901 }
902 }
903#ifdef CHECK_BLINK
904 else if (check_blink_state(base)) {
905 printk("eata_pio: HBA is in BLINK state.\n" "Consult your HBAs manual to correct this.\n");
906 }
907#endif
908 }
909 }
910#endif
911}
912
913static int eata_pio_detect(struct scsi_host_template *tpnt)
914{
915 struct Scsi_Host *HBA_ptr;
916 struct get_conf gc;
917 int i;
918
919 find_pio_PCI(&gc);
920 find_pio_EISA(&gc);
921 find_pio_ISA(&gc);
922
923 for (i = 0; i < MAXIRQ; i++)
924 if (reg_IRQ[i])
925 request_irq(i, do_eata_pio_int_handler, 0, "EATA-PIO", NULL);
926
927 HBA_ptr = first_HBA;
928
929 if (registered_HBAs != 0) {
930 printk("EATA (Extended Attachment) PIO driver version: %d.%d%s\n"
931 "(c) 1993-95 Michael Neuffer, neuffer@goofy.zdv.uni-mainz.de\n" " Alfred Arnold, a.arnold@kfa-juelich.de\n" "This release only supports DASD devices (harddisks)\n", VER_MAJOR, VER_MINOR, VER_SUB);
932
933 printk("Registered HBAs:\n");
934 printk("HBA no. Boardtype: Revis: EATA: Bus: BaseIO: IRQ: Ch: ID: Pr:" " QS: SG: CPL:\n");
935 for (i = 1; i <= registered_HBAs; i++) {
936 printk("scsi%-2d: %.10s v%s 2.0%c %s %#.4lx %2d %d %d %c"
937 " %2d %2d %2d\n",
938 HBA_ptr->host_no, SD(HBA_ptr)->name, SD(HBA_ptr)->revision,
939 SD(HBA_ptr)->EATA_revision, (SD(HBA_ptr)->bustype == 'P') ?
940 "PCI " : (SD(HBA_ptr)->bustype == 'E') ? "EISA" : "ISA ",
941 HBA_ptr->base, HBA_ptr->irq, SD(HBA_ptr)->channel, HBA_ptr->this_id,
942 SD(HBA_ptr)->primary ? 'Y' : 'N', HBA_ptr->can_queue,
943 HBA_ptr->sg_tablesize, HBA_ptr->cmd_per_lun);
944 HBA_ptr = SD(HBA_ptr)->next;
945 }
946 }
947 return (registered_HBAs);
948}
949
950static struct scsi_host_template driver_template = {
951 .proc_name = "eata_pio",
952 .name = "EATA (Extended Attachment) PIO driver",
953 .show_info = eata_pio_show_info,
954 .detect = eata_pio_detect,
955 .release = eata_pio_release,
956 .queuecommand = eata_pio_queue,
957 .eh_abort_handler = eata_pio_abort,
958 .eh_host_reset_handler = eata_pio_host_reset,
959 .use_clustering = ENABLE_CLUSTERING,
960};
961
962MODULE_AUTHOR("Michael Neuffer, Alfred Arnold");
963MODULE_DESCRIPTION("EATA SCSI PIO driver");
964MODULE_LICENSE("GPL");
965
966#include "scsi_module.c"
967
