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immio.c (184130) immio.c (185003)
1/*-
2 * Copyright (c) 1998, 1999 Nicolas Souchu
3 * Copyright (c) 2001 Alcove - Nicolas Souchu
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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

23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 */
29
30#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 1998, 1999 Nicolas Souchu
3 * Copyright (c) 2001 Alcove - Nicolas Souchu
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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

23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/dev/ppbus/immio.c 184130 2008-10-21 18:30:10Z jhb $");
31__FBSDID("$FreeBSD: head/sys/dev/ppbus/immio.c 185003 2008-11-16 17:42:02Z jhb $");
32
33/*
34 * Iomega ZIP+ Matchmaker Parallel Port Interface driver
35 *
36 * Thanks to David Campbell work on the Linux driver and the Iomega specs
37 * Thanks to Thiebault Moeglin for the drive
38 */
39#ifdef _KERNEL

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245
246/*
247 * This is the sub-microsequence for MS_PUT in both NIBBLE and PS2 modes
248 */
249static struct ppb_microseq spp_outbyte_submicroseq[] = {
250 MS_CASS(0x4),
251
252/* loop: */
32
33/*
34 * Iomega ZIP+ Matchmaker Parallel Port Interface driver
35 *
36 * Thanks to David Campbell work on the Linux driver and the Iomega specs
37 * Thanks to Thiebault Moeglin for the drive
38 */
39#ifdef _KERNEL

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245
246/*
247 * This is the sub-microsequence for MS_PUT in both NIBBLE and PS2 modes
248 */
249static struct ppb_microseq spp_outbyte_submicroseq[] = {
250 MS_CASS(0x4),
251
252/* loop: */
253 MS_RASSERT_P(1, MS_REG_DTR),
253 MS_RASSERT_P(1, MS_REG_DTR),
254 MS_CASS(0x5),
255 MS_DBRA(0), /* decrement counter */
254 MS_CASS(0x5),
255 MS_DBRA(0), /* decrement counter */
256 MS_RASSERT_P(1, MS_REG_DTR),
256 MS_RASSERT_P(1, MS_REG_DTR),
257 MS_CASS(0x0),
258 MS_DBRA(-6 /* loop */),
259
260 /* return from the put call */
261 MS_CASS(0x4),
262 MS_RET(0)
263};
264
265/* EPP 1.7 microsequences, ptr and len set at runtime */
266static struct ppb_microseq epp17_outstr[] = {
267 MS_CASS(0x4),
257 MS_CASS(0x0),
258 MS_DBRA(-6 /* loop */),
259
260 /* return from the put call */
261 MS_CASS(0x4),
262 MS_RET(0)
263};
264
265/* EPP 1.7 microsequences, ptr and len set at runtime */
266static struct ppb_microseq epp17_outstr[] = {
267 MS_CASS(0x4),
268 MS_RASSERT_P(MS_ACCUM, MS_REG_EPP_D),
268 MS_RASSERT_P(MS_ACCUM, MS_REG_EPP_D),
269 MS_CASS(0xc),
270 MS_RET(0),
271};
272
273static struct ppb_microseq epp17_instr[] = {
274 MS_CASS(PCD | 0x4),
269 MS_CASS(0xc),
270 MS_RET(0),
271};
272
273static struct ppb_microseq epp17_instr[] = {
274 MS_CASS(PCD | 0x4),
275 MS_RFETCH_P(MS_ACCUM, MS_REG_EPP_D, MS_FETCH_ALL),
275 MS_RFETCH_P(MS_ACCUM, MS_REG_EPP_D, MS_FETCH_ALL),
276 MS_CASS(PCD | 0xc),
277 MS_RET(0),
278};
279
280static int
281imm_disconnect(struct vpoio_data *vpo, int *connected, int release_bus)
282{
283 DECLARE_CPP_MICROSEQ;

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411 }
412
413 /* send SCSI reset signal */
414 ppb_MS_microseq(ppbus, vpo->vpo_dev, reset_microseq, NULL);
415
416 /* release the bus now */
417 imm_disconnect(vpo, &error, 1);
418
276 MS_CASS(PCD | 0xc),
277 MS_RET(0),
278};
279
280static int
281imm_disconnect(struct vpoio_data *vpo, int *connected, int release_bus)
282{
283 DECLARE_CPP_MICROSEQ;

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411 }
412
413 /* send SCSI reset signal */
414 ppb_MS_microseq(ppbus, vpo->vpo_dev, reset_microseq, NULL);
415
416 /* release the bus now */
417 imm_disconnect(vpo, &error, 1);
418
419 /* ensure we are disconnected or daisy chained peripheral
419 /* ensure we are disconnected or daisy chained peripheral
420 * may cause serious problem to the disk */
421
422 if (error) {
423 if (bootverbose)
424 device_printf(vpo->vpo_dev,
425 "can't disconnect from the drive\n");
426 goto error;
427 }

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474{
475 DECLARE_SELECT_MICROSEQUENCE;
476 device_t ppbus = device_get_parent(vpo->vpo_dev);
477 int ret;
478
479 /* initialize the select microsequence */
480 ppb_MS_init_msq(select_microseq, 1,
481 SELECT_TARGET, 1 << initiator | 1 << target);
420 * may cause serious problem to the disk */
421
422 if (error) {
423 if (bootverbose)
424 device_printf(vpo->vpo_dev,
425 "can't disconnect from the drive\n");
426 goto error;
427 }

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474{
475 DECLARE_SELECT_MICROSEQUENCE;
476 device_t ppbus = device_get_parent(vpo->vpo_dev);
477 int ret;
478
479 /* initialize the select microsequence */
480 ppb_MS_init_msq(select_microseq, 1,
481 SELECT_TARGET, 1 << initiator | 1 << target);
482
482
483 ppb_MS_microseq(ppbus, vpo->vpo_dev, select_microseq, &ret);
484
485 return (ret);
486}
487
488/*
489 * imm_wait()
490 *

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509
510 ppb_MS_init_msq(wait_microseq, 2,
511 WAIT_RET, (void *)&ret,
512 WAIT_TMO, tmo);
513
514 ppb_MS_microseq(ppbus, vpo->vpo_dev, wait_microseq, &err);
515
516 if (err)
483 ppb_MS_microseq(ppbus, vpo->vpo_dev, select_microseq, &ret);
484
485 return (ret);
486}
487
488/*
489 * imm_wait()
490 *

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509
510 ppb_MS_init_msq(wait_microseq, 2,
511 WAIT_RET, (void *)&ret,
512 WAIT_TMO, tmo);
513
514 ppb_MS_microseq(ppbus, vpo->vpo_dev, wait_microseq, &err);
515
516 if (err)
517 return (0); /* command timed out */
517 return (0); /* command timed out */
518
519 return(ret);
520}
521
522static int
523imm_negociate(struct vpoio_data *vpo)
524{
525 DECLARE_NEGOCIATE_MICROSEQ;

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535 return (0);
536
537#if 0 /* XXX use standalone code not to depend on ppb_1284 code yet */
538 ret = ppb_1284_negociate(ppbus, negociate_mode);
539
540 if (ret)
541 return (VP0_ENEGOCIATE);
542#endif
518
519 return(ret);
520}
521
522static int
523imm_negociate(struct vpoio_data *vpo)
524{
525 DECLARE_NEGOCIATE_MICROSEQ;

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535 return (0);
536
537#if 0 /* XXX use standalone code not to depend on ppb_1284 code yet */
538 ret = ppb_1284_negociate(ppbus, negociate_mode);
539
540 if (ret)
541 return (VP0_ENEGOCIATE);
542#endif
543
543
544 ppb_MS_init_msq(negociate_microseq, 1,
545 NEGOCIATED_MODE, negociate_mode);
546
547 ppb_MS_microseq(ppbus, vpo->vpo_dev, negociate_microseq, &ret);
548
549 return (ret);
550}
551

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575 * imm_attach()
576 *
577 * Low level attachment of vpo device
578 *
579 */
580int
581imm_attach(struct vpoio_data *vpo)
582{
544 ppb_MS_init_msq(negociate_microseq, 1,
545 NEGOCIATED_MODE, negociate_mode);
546
547 ppb_MS_microseq(ppbus, vpo->vpo_dev, negociate_microseq, &ret);
548
549 return (ret);
550}
551

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575 * imm_attach()
576 *
577 * Low level attachment of vpo device
578 *
579 */
580int
581imm_attach(struct vpoio_data *vpo)
582{
583 DECLARE_NIBBLE_INBYTE_SUBMICROSEQ;
583 DECLARE_NIBBLE_INBYTE_SUBMICROSEQ;
584 device_t ppbus = device_get_parent(vpo->vpo_dev);
585 int error = 0;
586
587 /*
588 * Initialize microsequence code
589 */
590 vpo->vpo_nibble_inbyte_msq = (struct ppb_microseq *)malloc(
591 sizeof(nibble_inbyte_submicroseq), M_DEVBUF, M_NOWAIT);

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596 bcopy((void *)nibble_inbyte_submicroseq,
597 (void *)vpo->vpo_nibble_inbyte_msq,
598 sizeof(nibble_inbyte_submicroseq));
599
600 ppb_MS_init_msq(vpo->vpo_nibble_inbyte_msq, 4,
601 INB_NIBBLE_H, (void *)&(vpo)->vpo_nibble.h,
602 INB_NIBBLE_L, (void *)&(vpo)->vpo_nibble.l,
603 INB_NIBBLE_F, nibble_inbyte_hook,
584 device_t ppbus = device_get_parent(vpo->vpo_dev);
585 int error = 0;
586
587 /*
588 * Initialize microsequence code
589 */
590 vpo->vpo_nibble_inbyte_msq = (struct ppb_microseq *)malloc(
591 sizeof(nibble_inbyte_submicroseq), M_DEVBUF, M_NOWAIT);

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596 bcopy((void *)nibble_inbyte_submicroseq,
597 (void *)vpo->vpo_nibble_inbyte_msq,
598 sizeof(nibble_inbyte_submicroseq));
599
600 ppb_MS_init_msq(vpo->vpo_nibble_inbyte_msq, 4,
601 INB_NIBBLE_H, (void *)&(vpo)->vpo_nibble.h,
602 INB_NIBBLE_L, (void *)&(vpo)->vpo_nibble.l,
603 INB_NIBBLE_F, nibble_inbyte_hook,
604 INB_NIBBLE_P, (void *)&(vpo)->vpo_nibble);
604 INB_NIBBLE_P, (void *)&(vpo)->vpo_nibble);
605
606 /*
607 * Initialize mode dependent in/out microsequences
608 */
609 if ((error = ppb_request_bus(ppbus, vpo->vpo_dev, PPB_WAIT)))
610 goto error;
611
612 /* ppbus automatically restore the last mode entered during detection */

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661}
662
663/*
664 * imm_do_scsi()
665 *
666 * Send an SCSI command
667 *
668 */
605
606 /*
607 * Initialize mode dependent in/out microsequences
608 */
609 if ((error = ppb_request_bus(ppbus, vpo->vpo_dev, PPB_WAIT)))
610 goto error;
611
612 /* ppbus automatically restore the last mode entered during detection */

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661}
662
663/*
664 * imm_do_scsi()
665 *
666 * Send an SCSI command
667 *
668 */
669int
669int
670imm_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
671 int clen, char *buffer, int blen, int *result, int *count,
672 int *ret)
673{
674 device_t ppbus = device_get_parent(vpo->vpo_dev);
675 register char r;
676 char l, h = 0;
677 int len, error = 0, not_connected = 0;

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

685 * Should we allow this call to be interruptible?
686 * The only way to report the interruption is to return
687 * EIO to upper SCSI code :^(
688 */
689 if ((error = imm_connect(vpo, PPB_WAIT|PPB_INTR, &not_connected, 1)))
690 return (error);
691
692 if (not_connected) {
670imm_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
671 int clen, char *buffer, int blen, int *result, int *count,
672 int *ret)
673{
674 device_t ppbus = device_get_parent(vpo->vpo_dev);
675 register char r;
676 char l, h = 0;
677 int len, error = 0, not_connected = 0;

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

685 * Should we allow this call to be interruptible?
686 * The only way to report the interruption is to return
687 * EIO to upper SCSI code :^(
688 */
689 if ((error = imm_connect(vpo, PPB_WAIT|PPB_INTR, &not_connected, 1)))
690 return (error);
691
692 if (not_connected) {
693 *ret = VP0_ECONNECT; goto error;
693 *ret = VP0_ECONNECT;
694 goto error;
694 }
695
696 /*
697 * Select the drive ...
698 */
699 if ((*ret = imm_select(vpo,host,target)))
700 goto error;
701

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

709 }
710 if (imm_outstr(vpo, &command[k], 2)) {
711 *ret = VP0_EPPDATA_TIMEOUT;
712 goto error;
713 }
714 }
715
716 if (!(r = imm_wait(vpo, VP0_LOW_SPINTMO))) {
695 }
696
697 /*
698 * Select the drive ...
699 */
700 if ((*ret = imm_select(vpo,host,target)))
701 goto error;
702

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

710 }
711 if (imm_outstr(vpo, &command[k], 2)) {
712 *ret = VP0_EPPDATA_TIMEOUT;
713 goto error;
714 }
715 }
716
717 if (!(r = imm_wait(vpo, VP0_LOW_SPINTMO))) {
717 *ret = VP0_ESTATUS_TIMEOUT; goto error;
718 *ret = VP0_ESTATUS_TIMEOUT;
719 goto error;
718 }
719
720 if ((r & 0x30) == 0x10) {
721 if (imm_negociate(vpo)) {
722 *ret = VP0_ENEGOCIATE;
723 goto error;
724 } else
725 negociated = 1;
726 }
727
720 }
721
722 if ((r & 0x30) == 0x10) {
723 if (imm_negociate(vpo)) {
724 *ret = VP0_ENEGOCIATE;
725 goto error;
726 } else
727 negociated = 1;
728 }
729
728 /*
729 * Complete transfer ...
730 /*
731 * Complete transfer ...
730 */
731 *count = 0;
732 for (;;) {
733
734 if (!(r = imm_wait(vpo, VP0_LOW_SPINTMO))) {
732 */
733 *count = 0;
734 for (;;) {
735
736 if (!(r = imm_wait(vpo, VP0_LOW_SPINTMO))) {
735 *ret = VP0_ESTATUS_TIMEOUT; goto error;
737 *ret = VP0_ESTATUS_TIMEOUT;
738 goto error;
736 }
737
738 /* stop when the ZIP+ wants to send status */
739 if (r == (char)0xb8)
740 break;
741
742 if (*count >= blen) {
743 *ret = VP0_EDATA_OVERFLOW;

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

777 */
778 if (imm_negociate(vpo)) {
779 *ret = VP0_ENEGOCIATE;
780 goto error;
781 } else
782 negociated = 1;
783
784 if (imm_instr(vpo, &l, 1)) {
739 }
740
741 /* stop when the ZIP+ wants to send status */
742 if (r == (char)0xb8)
743 break;
744
745 if (*count >= blen) {
746 *ret = VP0_EDATA_OVERFLOW;

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

780 */
781 if (imm_negociate(vpo)) {
782 *ret = VP0_ENEGOCIATE;
783 goto error;
784 } else
785 negociated = 1;
786
787 if (imm_instr(vpo, &l, 1)) {
785 *ret = VP0_EOTHER; goto error;
788 *ret = VP0_EOTHER;
789 goto error;
786 }
787
788 /* check if the ZIP+ wants to send more status */
789 if (imm_wait(vpo, VP0_FAST_SPINTMO) == (char)0xb8)
790 if (imm_instr(vpo, &h, 1)) {
790 }
791
792 /* check if the ZIP+ wants to send more status */
793 if (imm_wait(vpo, VP0_FAST_SPINTMO) == (char)0xb8)
794 if (imm_instr(vpo, &h, 1)) {
791 *ret = VP0_EOTHER+2; goto error;
795 *ret = VP0_EOTHER + 2;
796 goto error;
792 }
793
794 /* Experience showed that we should discard this */
795 if (h == (char) -1)
796 h = 0;
797
798 *result = ((int) h << 8) | ((int) l & 0xff);
799
800error:
801 if ((PPB_IN_NIBBLE_MODE(ppbus) ||
802 PPB_IN_PS2_MODE(ppbus)) && negociated)
803 ppb_MS_microseq(ppbus, vpo->vpo_dev, transfer_epilog, NULL);
804
805 /* return to printer state, release the ppbus */
806 imm_disconnect(vpo, NULL, 1);
807
808 return (0);
809}
797 }
798
799 /* Experience showed that we should discard this */
800 if (h == (char) -1)
801 h = 0;
802
803 *result = ((int) h << 8) | ((int) l & 0xff);
804
805error:
806 if ((PPB_IN_NIBBLE_MODE(ppbus) ||
807 PPB_IN_PS2_MODE(ppbus)) && negociated)
808 ppb_MS_microseq(ppbus, vpo->vpo_dev, transfer_epilog, NULL);
809
810 /* return to printer state, release the ppbus */
811 imm_disconnect(vpo, NULL, 1);
812
813 return (0);
814}