Deleted Added
sdiff udiff text old ( 51346 ) new ( 52059 )
full compact
pnp.c (51346) pnp.c (52059)
1/*
2 * Copyright (c) 1996, Sujal M. Patel
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*
2 * Copyright (c) 1996, Sujal M. Patel
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/isa/pnp.c 51346 1999-09-17 08:18:34Z dfr $
26 * $FreeBSD: head/sys/isa/pnp.c 52059 1999-10-09 13:11:46Z dfr $
27 * from: pnp.c,v 1.11 1999/05/06 22:11:19 peter Exp
28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/bus.h>
35#include <sys/malloc.h>
36#include <isa/isavar.h>
37#include <isa/pnpreg.h>
38#include <isa/pnpvar.h>
27 * from: pnp.c,v 1.11 1999/05/06 22:11:19 peter Exp
28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/bus.h>
35#include <sys/malloc.h>
36#include <isa/isavar.h>
37#include <isa/pnpreg.h>
38#include <isa/pnpvar.h>
39#include <machine/resource.h>
40#include <machine/clock.h>
41
42typedef struct _pnp_id {
43 u_int32_t vendor_id;
44 u_int32_t serial;
45 u_char checksum;
46} pnp_id;
47

--- 114 unchanged lines hidden (view full) ---

162
163 valid = valid && (data[8] == sum);
164
165 return valid;
166}
167
168/*
169 * Fill's the buffer with resource info from the device.
39#include <machine/clock.h>
40
41typedef struct _pnp_id {
42 u_int32_t vendor_id;
43 u_int32_t serial;
44 u_char checksum;
45} pnp_id;
46

--- 114 unchanged lines hidden (view full) ---

161
162 valid = valid && (data[8] == sum);
163
164 return valid;
165}
166
167/*
168 * Fill's the buffer with resource info from the device.
170 * Returns 0 if the device fails to report
169 * Returns the number of characters read.
171 */
172static int
173pnp_get_resource_info(u_char *buffer, int len)
174{
170 */
171static int
172pnp_get_resource_info(u_char *buffer, int len)
173{
175 int i, j;
174 int i, j, count;
176 u_char temp;
177
175 u_char temp;
176
177 count = 0;
178 for (i = 0; i < len; i++) {
179 outb(_PNP_ADDRESS, PNP_STATUS);
180 for (j = 0; j < 100; j++) {
181 if ((inb((pnp_rd_port << 2) | 0x3)) & 0x1)
182 break;
183 DELAY(1);
184 }
185 if (j == 100) {
186 printf("PnP device failed to report resource data\n");
178 for (i = 0; i < len; i++) {
179 outb(_PNP_ADDRESS, PNP_STATUS);
180 for (j = 0; j < 100; j++) {
181 if ((inb((pnp_rd_port << 2) | 0x3)) & 0x1)
182 break;
183 DELAY(1);
184 }
185 if (j == 100) {
186 printf("PnP device failed to report resource data\n");
187 return 0;
187 return count;
188 }
189 outb(_PNP_ADDRESS, PNP_RESOURCE_DATA);
190 temp = inb((pnp_rd_port << 2) | 0x3);
191 if (buffer != NULL)
192 buffer[i] = temp;
188 }
189 outb(_PNP_ADDRESS, PNP_RESOURCE_DATA);
190 temp = inb((pnp_rd_port << 2) | 0x3);
191 if (buffer != NULL)
192 buffer[i] = temp;
193 count++;
193 }
194 }
194 return 1;
195 return count;
195}
196
197#if 0
198/*
199 * write_pnp_parms initializes a logical device with the parms
200 * in d, and then activates the board if the last parameter is 1.
201 */
202

--- 159 unchanged lines hidden (view full) ---

362 }
363 }
364}
365
366/*
367 * Scan Resource Data for Logical Devices.
368 *
369 * This function exits as soon as it gets an error reading *ANY*
196}
197
198#if 0
199/*
200 * write_pnp_parms initializes a logical device with the parms
201 * in d, and then activates the board if the last parameter is 1.
202 */
203

--- 159 unchanged lines hidden (view full) ---

363 }
364 }
365}
366
367/*
368 * Scan Resource Data for Logical Devices.
369 *
370 * This function exits as soon as it gets an error reading *ANY*
370 * Resource Data or ir reaches the end of Resource Data. In the first
371 * Resource Data or it reaches the end of Resource Data. In the first
371 * case the return value will be TRUE, FALSE otherwise.
372 */
373static int
372 * case the return value will be TRUE, FALSE otherwise.
373 */
374static int
374pnp_scan_resdata(device_t parent, pnp_id *p, int csn)
375pnp_create_devices(device_t parent, pnp_id *p, int csn,
376 u_char *resources, int len)
375{
377{
376 u_char tag, resinfo[16];
377 int large_len, scanning = 1024, retval = FALSE;
378 u_char tag, *resp, *resinfo, *startres = 0;
379 int large_len, scanning = len, retval = FALSE;
378 u_int32_t logical_id;
379 u_int32_t compat_id;
380 device_t dev = 0;
381 int ldn = 0;
380 u_int32_t logical_id;
381 u_int32_t compat_id;
382 device_t dev = 0;
383 int ldn = 0;
382 struct isa_config card, logdev, alt;
383 struct isa_config *config;
384 struct pnp_set_config_arg *csnldn;
384 struct pnp_set_config_arg *csnldn;
385 int priority = 0;
386 int seenalt = 0;
385 char buf[100];
387 char *desc = 0;
388
386 char *desc = 0;
387
389 bzero(&card, sizeof card);
390 bzero(&logdev, sizeof logdev);
391 bzero(&alt, sizeof alt);
392 config = &card;
393 while (scanning-- > 0 && pnp_get_resource_info(&tag, 1)) {
394 if (PNP_RES_TYPE(tag) == 0) {
395 /* Small resource */
396 if (pnp_get_resource_info(resinfo,
397 PNP_SRES_LEN(tag)) == 0) {
388 resp = resources;
389 while (scanning > 0) {
390 tag = *resp++;
391 scanning--;
392 if (PNP_RES_TYPE(tag) != 0) {
393 /* Large resource */
394 if (scanning < 2) {
398 scanning = 0;
399 continue;
400 }
395 scanning = 0;
396 continue;
397 }
398 large_len = resp[0] + (resp[1] << 8);
399 resp += 2;
401
400
402 switch (PNP_SRES_NUM(tag)) {
403 case PNP_TAG_LOGICAL_DEVICE:
404 /*
405 * A new logical device. Scan
406 * resourcea and add device.
407 */
408 bcopy(resinfo, &logical_id, 4);
409 pnp_check_quirks(p->vendor_id,
410 logical_id,
411 ldn);
412 compat_id = 0;
413 logdev = card;
414 config = &logdev;
415 dev = BUS_ADD_CHILD(parent,
416 ISA_ORDER_PNP, NULL, -1);
417 if (desc)
418 device_set_desc_copy(dev, desc);
419 isa_set_vendorid(dev, p->vendor_id);
420 isa_set_serial(dev, p->serial);
421 isa_set_logicalid(dev, logical_id);
422 csnldn = malloc(sizeof *csnldn,
423 M_DEVBUF, M_NOWAIT);
424 if (!csnldn) {
425 device_printf(parent,
426 "out of memory\n");
427 scanning = 0;
428 break;
429 }
430 csnldn->csn = csn;
431 csnldn->ldn = ldn;
432 ISA_SET_CONFIG_CALLBACK(parent, dev,
433 pnp_set_config,
434 csnldn);
435 seenalt = 0;
436 ldn++;
437 break;
438
439 case PNP_TAG_COMPAT_DEVICE:
440 /*
441 * Got a compatible device id
442 * resource. Should keep a list of
443 * compat ids in the device.
444 */
445 bcopy(resinfo, &compat_id, 4);
446 if (dev)
447 isa_set_compatid(dev, compat_id);
448 break;
449
450 case PNP_TAG_IRQ_FORMAT:
451 if (config->ic_nirq == ISA_NIRQ) {
452 device_printf(parent,
453 "CSN %d too many irqs",
454 csn);
455 scanning = 0;
456 break;
457 }
458 config->ic_irqmask[config->ic_nirq] =
459 resinfo[0] + (resinfo[1]<<8);
460 config->ic_nirq++;
461 break;
462
463 case PNP_TAG_DMA_FORMAT:
464 if (config->ic_ndrq == ISA_NDRQ) {
465 device_printf(parent,
466 "CSN %d too many drqs",
467 csn);
468 scanning = 0;
469 break;
470 }
471 config->ic_drqmask[config->ic_ndrq] =
472 resinfo[0];
473 config->ic_ndrq++;
474 break;
475
476 case PNP_TAG_START_DEPENDANT:
477 if (config == &alt) {
478 ISA_ADD_CONFIG(parent, dev,
479 priority, config);
480 } else if (config != &logdev) {
481 device_printf(parent,
482 "CSN %d malformed\n",
483 csn);
484 scanning = 0;
485 break;
486 }
487 /*
488 * If the priority is not specified,
489 * then use the default of
490 * 'acceptable'
491 */
492 if (PNP_SRES_LEN(tag) > 0)
493 priority = resinfo[0];
494 else
495 priority = 1;
496 alt = logdev;
497 config = &alt;
498 break;
499
500 case PNP_TAG_END_DEPENDANT:
501 ISA_ADD_CONFIG(parent, dev, priority, config);
502 config = &logdev;
503 seenalt = 1;
504 break;
505
506 case PNP_TAG_IO_RANGE:
507 if (config->ic_nport == ISA_NPORT) {
508 device_printf(parent,
509 "CSN %d too many ports",
510 csn);
511 scanning = 0;
512 break;
513 }
514 config->ic_port[config->ic_nport].ir_start =
515 resinfo[1] + (resinfo[2]<<8);
516 config->ic_port[config->ic_nport].ir_end =
517 resinfo[3] + (resinfo[4]<<8)
518 + resinfo[6] - 1;
519 config->ic_port[config->ic_nport].ir_size
520 =
521 resinfo[6];
522 config->ic_port[config->ic_nport].ir_align =
523 resinfo[5];
524 config->ic_nport++;
525 break;
526
527 case PNP_TAG_IO_FIXED:
528 if (config->ic_nport == ISA_NPORT) {
529 device_printf(parent,
530 "CSN %d too many ports",
531 csn);
532 scanning = 0;
533 break;
534 }
535 config->ic_port[config->ic_nport].ir_start =
536 resinfo[0] + (resinfo[1]<<8);
537 config->ic_port[config->ic_nport].ir_end =
538 resinfo[0] + (resinfo[1]<<8)
539 + resinfo[2] - 1;
540 config->ic_port[config->ic_nport].ir_size
541 = resinfo[2];
542 config->ic_port[config->ic_nport].ir_align = 1;
543 config->ic_nport++;
544 break;
545
546 case PNP_TAG_END:
547 if (!seenalt)
548 ISA_ADD_CONFIG(parent, dev,
549 priority, config);
401 if (scanning < large_len) {
550 scanning = 0;
402 scanning = 0;
551 break;
552
553 default:
554 /* Skip this resource */
555 break;
556 }
557 } else {
558 /* Large resource */
559 if (pnp_get_resource_info(resinfo, 2) == 0) {
560 scanning = 0;
561 continue;
562 }
403 continue;
404 }
563 large_len = resinfo[0] + (resinfo[1] << 8);
405 resinfo = resp;
406 resp += large_len;
407 scanning -= large_len;
564
565 if (PNP_LRES_NUM(tag) == PNP_TAG_ID_ANSI) {
408
409 if (PNP_LRES_NUM(tag) == PNP_TAG_ID_ANSI) {
566 if (desc)
567 free(desc, M_TEMP);
568 desc = malloc(large_len + 1,
569 M_TEMP, M_NOWAIT);
410 if (large_len > sizeof(buf) - 1)
411 large_len = sizeof(buf) - 1;
412 bcopy(resinfo, buf, large_len);
413
570 /*
414 /*
571 * Note: if malloc fails, this will
572 * skip the resource instead of
573 * reading it into desc.
415 * Trim trailing spaces.
574 */
416 */
575 if (pnp_get_resource_info(desc,
576 large_len) == 0) {
577 scanning = 0;
578 }
579 if (desc) {
580 /*
581 * Trim trailing spaces.
582 */
583 while (desc[large_len-1] == ' ')
584 large_len--;
585 desc[large_len] = '\0';
586 if (dev)
587 device_set_desc_copy
588 (dev, desc);
589 }
417 while (buf[large_len-1] == ' ')
418 large_len--;
419 buf[large_len] = '\0';
420 desc = buf;
421 if (dev)
422 device_set_desc_copy(dev, desc);
590 continue;
591 }
592
423 continue;
424 }
425
593 if (PNP_LRES_NUM(tag) != PNP_TAG_MEMORY_RANGE) {
594 /* skip */
595 if (pnp_get_resource_info(NULL,
596 large_len) == 0) {
597 scanning = 0;
598 }
599 continue;
426 continue;
427 }
428
429 /* Small resource */
430 if (scanning < PNP_SRES_LEN(tag)) {
431 scanning = 0;
432 continue;
433 }
434 resinfo = resp;
435 resp += PNP_SRES_LEN(tag);
436 scanning -= PNP_SRES_LEN(tag);;
437
438 switch (PNP_SRES_NUM(tag)) {
439 case PNP_TAG_LOGICAL_DEVICE:
440 /*
441 * Parse the resources for the previous
442 * logical device (if any).
443 */
444 if (startres) {
445 pnp_parse_resources(dev, startres,
446 resinfo - startres - 1);
447 dev = 0;
448 startres = 0;
600 }
601
449 }
450
602 if (pnp_get_resource_info(resinfo, large_len) == 0) {
451 /*
452 * A new logical device. Scan for end of
453 * resources.
454 */
455 bcopy(resinfo, &logical_id, 4);
456 pnp_check_quirks(p->vendor_id, logical_id, ldn);
457 compat_id = 0;
458 dev = BUS_ADD_CHILD(parent, ISA_ORDER_PNP, NULL, -1);
459 if (desc)
460 device_set_desc_copy(dev, desc);
461 isa_set_vendorid(dev, p->vendor_id);
462 isa_set_serial(dev, p->serial);
463 isa_set_logicalid(dev, logical_id);
464 csnldn = malloc(sizeof *csnldn, M_DEVBUF, M_NOWAIT);
465 if (!csnldn) {
466 device_printf(parent,
467 "out of memory\n");
603 scanning = 0;
468 scanning = 0;
604 continue;
469 break;
605 }
470 }
606
607 if (config->ic_nmem == ISA_NMEM) {
471 csnldn->csn = csn;
472 csnldn->ldn = ldn;
473 ISA_SET_CONFIG_CALLBACK(parent, dev,
474 pnp_set_config, csnldn);
475 ldn++;
476 startres = resp;
477 break;
478
479 case PNP_TAG_END:
480 if (!startres) {
608 device_printf(parent,
481 device_printf(parent,
609 "CSN %d too many memory ranges",
610 csn);
482 "malformed resources\n");
611 scanning = 0;
612 break;
613 }
483 scanning = 0;
484 break;
485 }
486 pnp_parse_resources(dev, startres,
487 resinfo - startres - 1);
488 dev = 0;
489 startres = 0;
490 scanning = 0;
491 break;
614
492
615 config->ic_mem[config->ic_nmem].ir_start =
616 (resinfo[4]<<8) + (resinfo[5]<<16);
617 config->ic_mem[config->ic_nmem].ir_end =
618 (resinfo[6]<<8) + (resinfo[7]<<16);
619 config->ic_mem[config->ic_nmem].ir_size =
620 (resinfo[10]<<8) + (resinfo[11]<<16);
621 config->ic_mem[config->ic_nmem].ir_align =
622 resinfo[8] + (resinfo[9]<<8);
623 if (!config->ic_mem[config->ic_nmem].ir_align)
624 config->ic_mem[config->ic_nmem].ir_align =
625 0x10000;
626 config->ic_nmem++;
493 default:
494 /* Skip this resource */
495 break;
627 }
628 }
629
496 }
497 }
498
630 if (desc)
631 free(desc, M_TEMP);
632
633 return retval;
634}
635
636/*
499 return retval;
500}
501
502/*
503 * Read 'amount' bytes of resources from the card, allocating memory
504 * as needed. If a buffer is already available, it should be passed in
505 * '*resourcesp' and its length in '*spacep'. The number of resource
506 * bytes already in the buffer should be passed in '*lenp'. The memory
507 * allocated will be returned in '*resourcesp' with its size and the
508 * number of bytes of resources in '*spacep' and '*lenp' respectively.
509 */
510static int
511pnp_read_bytes(int amount, u_char **resourcesp, int *spacep, int *lenp)
512{
513 u_char *resources = *resourcesp;
514 u_char *newres;
515 int space = *spacep;
516 int len = *lenp;
517
518 if (space == 0) {
519 space = 1024;
520 resources = malloc(space, M_TEMP, M_NOWAIT);
521 if (!resources)
522 return ENOMEM;
523 }
524
525 if (len + amount > space) {
526 int extra = 1024;
527 while (len + amount > space + extra)
528 extra += 1024;
529 newres = malloc(space + extra, M_TEMP, M_NOWAIT);
530 if (!newres)
531 return ENOMEM;
532 bcopy(resources, newres, len);
533 free(resources, M_TEMP);
534 resources = newres;
535 space += extra;
536 }
537
538 if (pnp_get_resource_info(resources + len, amount) != amount)
539 return EINVAL;
540 len += amount;
541
542 *resourcesp = resources;
543 *spacep = space;
544 *lenp = len;
545
546 return 0;
547}
548
549/*
550 * Read all resources from the card, allocating memory as needed. If a
551 * buffer is already available, it should be passed in '*resourcesp'
552 * and its length in '*spacep'. The memory allocated will be returned
553 * in '*resourcesp' with its size and the number of bytes of resources
554 * in '*spacep' and '*lenp' respectively.
555 */
556static int
557pnp_read_resources(u_char **resourcesp, int *spacep, int *lenp)
558{
559 u_char *resources = *resourcesp;
560 int space = *spacep;
561 int len = 0;
562 int error, done;
563 u_char tag;
564
565 error = 0;
566 done = 0;
567 while (!done) {
568 error = pnp_read_bytes(1, &resources, &space, &len);
569 if (error)
570 goto out;
571 tag = resources[len-1];
572 if (PNP_RES_TYPE(tag) == 0) {
573 /*
574 * Small resource, read contents.
575 */
576 error = pnp_read_bytes(PNP_SRES_LEN(tag),
577 &resources, &space, &len);
578 if (error)
579 goto out;
580 if (PNP_SRES_NUM(tag) == PNP_TAG_END)
581 done = 1;
582 } else {
583 /*
584 * Large resource, read length and contents.
585 */
586 error = pnp_read_bytes(2, &resources, &space, &len);
587 if (error)
588 goto out;
589 error = pnp_read_bytes(resources[len-2]
590 + (resources[len-1] << 8),
591 &resources, &space, &len);
592 if (error)
593 goto out;
594 }
595 }
596
597 out:
598 *resourcesp = resources;
599 *spacep = space;
600 *lenp = len;
601 return error;
602}
603
604/*
637 * Run the isolation protocol. Use pnp_rd_port as the READ_DATA port
638 * value (caller should try multiple READ_DATA locations before giving
639 * up). Upon exiting, all cards are aware that they should use
640 * pnp_rd_port as the READ_DATA port.
641 *
642 * In the first pass, a csn is assigned to each board and pnp_id's
643 * are saved to an array, pnp_devices. In the second pass, each
644 * card is woken up and the device configuration is called.
645 */
646static int
647pnp_isolation_protocol(device_t parent)
648{
649 int csn;
650 pnp_id id;
605 * Run the isolation protocol. Use pnp_rd_port as the READ_DATA port
606 * value (caller should try multiple READ_DATA locations before giving
607 * up). Upon exiting, all cards are aware that they should use
608 * pnp_rd_port as the READ_DATA port.
609 *
610 * In the first pass, a csn is assigned to each board and pnp_id's
611 * are saved to an array, pnp_devices. In the second pass, each
612 * card is woken up and the device configuration is called.
613 */
614static int
615pnp_isolation_protocol(device_t parent)
616{
617 int csn;
618 pnp_id id;
651 int found = 0;
619 int found = 0, len;
620 u_char *resources = 0;
621 int space = 0;
622 int error;
652
653 /*
654 * Put all cards into the Sleep state so that we can clear
655 * their CSNs.
656 */
657 pnp_send_initiation_key();
658
659 /*

--- 18 unchanged lines hidden (view full) ---

678 outb(_PNP_ADDRESS, PNP_SERIAL_ISOLATION);
679 DELAY(1000); /* Delay 1 msec */
680
681 if (pnp_get_serial(&id)) {
682 /*
683 * We have read the id from a card
684 * successfully. The card which won the
685 * isolation protocol will be in Isolation
623
624 /*
625 * Put all cards into the Sleep state so that we can clear
626 * their CSNs.
627 */
628 pnp_send_initiation_key();
629
630 /*

--- 18 unchanged lines hidden (view full) ---

649 outb(_PNP_ADDRESS, PNP_SERIAL_ISOLATION);
650 DELAY(1000); /* Delay 1 msec */
651
652 if (pnp_get_serial(&id)) {
653 /*
654 * We have read the id from a card
655 * successfully. The card which won the
656 * isolation protocol will be in Isolation
686 * mode and all others will be in Sleep. *
657 * mode and all others will be in Sleep.
687 * Program the CSN of the isolated card
688 * (taking it to Config state) and read its
689 * resources, creating devices as we find
690 * logical devices on the card.
691 */
692 pnp_write(PNP_SET_CSN, csn);
658 * Program the CSN of the isolated card
659 * (taking it to Config state) and read its
660 * resources, creating devices as we find
661 * logical devices on the card.
662 */
663 pnp_write(PNP_SET_CSN, csn);
693 pnp_scan_resdata(parent, &id, csn);
664 error = pnp_read_resources(&resources,
665 &space,
666 &len);
667 if (error)
668 break;
669 pnp_create_devices(parent, &id, csn,
670 resources, len);
694 found++;
695 } else
696 break;
697
698 /*
699 * Put this card back to the Sleep state and
700 * simultaneously move all cards which don't have a
701 * CSN yet to Isolation state.
702 */
703 pnp_write(PNP_WAKE, 0);
704 }
705
706 /*
707 * Unless we have chosen the wrong read port, all cards will
708 * be in Sleep state. Put them back into WaitForKey for
709 * now. Their resources will be programmed later.
710 */
711 pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_WAIT_FOR_KEY);
712
671 found++;
672 } else
673 break;
674
675 /*
676 * Put this card back to the Sleep state and
677 * simultaneously move all cards which don't have a
678 * CSN yet to Isolation state.
679 */
680 pnp_write(PNP_WAKE, 0);
681 }
682
683 /*
684 * Unless we have chosen the wrong read port, all cards will
685 * be in Sleep state. Put them back into WaitForKey for
686 * now. Their resources will be programmed later.
687 */
688 pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_WAIT_FOR_KEY);
689
690 /*
691 * Cleanup.
692 */
693 if (resources)
694 free(resources, M_TEMP);
695
713 return found;
714}
715
716
717/*
718 * pnp_identify()
719 *
720 * autoconfiguration of pnp devices. This routine just runs the

--- 47 unchanged lines hidden --- 		696 return found;
697}
698
699
700/*
701 * pnp_identify()
702 *
703 * autoconfiguration of pnp devices. This routine just runs the

--- 47 unchanged lines hidden ---