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immio.c (67164) immio.c (70608)
1/*-
2 * Copyright (c) 1998, 1999 Nicolas Souchu
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

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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) 1998, 1999 Nicolas Souchu
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

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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/dev/ppbus/immio.c 67164 2000-10-15 14:19:01Z phk $
26 * $FreeBSD: head/sys/dev/ppbus/immio.c 70608 2001-01-02 21:29:06Z nsouch $
27 *
28 */
29
30/*
31 * Iomega ZIP+ Matchmaker Parallel Port Interface driver
32 *
33 * Thanks to David Campbell work on the Linux driver and the Iomega specs
34 * Thanks to Thiebault Moeglin for the drive

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367 int error;
368
369 if ((error = ppb_request_bus(ppbus, vpo->vpo_dev, PPB_DONTWAIT)))
370 return (error);
371
372 /* disconnect the drive, keep the bus */
373 imm_disconnect(vpo, NULL, 0);
374
27 *
28 */
29
30/*
31 * Iomega ZIP+ Matchmaker Parallel Port Interface driver
32 *
33 * Thanks to David Campbell work on the Linux driver and the Iomega specs
34 * Thanks to Thiebault Moeglin for the drive

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367 int error;
368
369 if ((error = ppb_request_bus(ppbus, vpo->vpo_dev, PPB_DONTWAIT)))
370 return (error);
371
372 /* disconnect the drive, keep the bus */
373 imm_disconnect(vpo, NULL, 0);
374
375 /* we already have the bus, just connect */
376 imm_connect(vpo, PPB_DONTWAIT, &error, 0);
375 vpo->vpo_mode_found = VP0_MODE_UNDEFINED;
376 error = 1;
377
377
378 /* try to enter EPP mode since vpoio failure put the bus in NIBBLE */
379 if (ppb_set_mode(ppbus, PPB_EPP) != -1) {
380 imm_connect(vpo, PPB_DONTWAIT, &error, 0);
381 }
382
383 /* if connection failed try PS/2 then NIBBLE modes */
378 if (error) {
384 if (error) {
379 if (bootverbose)
380 printf("imm%d: can't connect to the drive\n",
381 vpo->vpo_unit);
382 goto error;
385 if (ppb_set_mode(ppbus, PPB_PS2) != -1) {
386 imm_connect(vpo, PPB_DONTWAIT, &error, 0);
387 }
388 if (error) {
389 if (ppb_set_mode(ppbus, PPB_NIBBLE) != -1) {
390 imm_connect(vpo, PPB_DONTWAIT, &error, 0);
391 if (error)
392 goto error;
393 vpo->vpo_mode_found = VP0_MODE_NIBBLE;
394 } else {
395 printf("imm%d: NIBBLE mode unavailable!\n", vpo->vpo_unit);
396 goto error;
397 }
398 } else {
399 vpo->vpo_mode_found = VP0_MODE_PS2;
400 }
401 } else {
402 vpo->vpo_mode_found = VP0_MODE_EPP;
383 }
384
385 /* send SCSI reset signal */
386 ppb_MS_microseq(ppbus, vpo->vpo_dev, reset_microseq, NULL);
387
388 /* release the bus now */
389 imm_disconnect(vpo, &error, 1);
390

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549 *
550 * Low level attachment of vpo device
551 *
552 */
553int
554imm_attach(struct vpoio_data *vpo)
555{
556 device_t ppbus = device_get_parent(vpo->vpo_dev);
403 }
404
405 /* send SCSI reset signal */
406 ppb_MS_microseq(ppbus, vpo->vpo_dev, reset_microseq, NULL);
407
408 /* release the bus now */
409 imm_disconnect(vpo, &error, 1);
410

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569 *
570 * Low level attachment of vpo device
571 *
572 */
573int
574imm_attach(struct vpoio_data *vpo)
575{
576 device_t ppbus = device_get_parent(vpo->vpo_dev);
557 int epp;
558
559 /*
560 * Initialize microsequence code
561 */
562 vpo->vpo_nibble_inbyte_msq = (struct ppb_microseq *)malloc(
563 sizeof(nibble_inbyte_submicroseq), M_DEVBUF, M_NOWAIT);
564
565 if (!vpo->vpo_nibble_inbyte_msq)

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571
572 INIT_NIBBLE_INBYTE_SUBMICROSEQ(vpo);
573
574 /*
575 * Initialize mode dependent in/out microsequences
576 */
577 ppb_request_bus(ppbus, vpo->vpo_dev, PPB_WAIT);
578
577
578 /*
579 * Initialize microsequence code
580 */
581 vpo->vpo_nibble_inbyte_msq = (struct ppb_microseq *)malloc(
582 sizeof(nibble_inbyte_submicroseq), M_DEVBUF, M_NOWAIT);
583
584 if (!vpo->vpo_nibble_inbyte_msq)

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590
591 INIT_NIBBLE_INBYTE_SUBMICROSEQ(vpo);
592
593 /*
594 * Initialize mode dependent in/out microsequences
595 */
596 ppb_request_bus(ppbus, vpo->vpo_dev, PPB_WAIT);
597
579 /* enter NIBBLE mode to configure submsq */
580 if (ppb_set_mode(ppbus, PPB_NIBBLE) != -1) {
581
582 ppb_MS_GET_init(ppbus, vpo->vpo_dev, vpo->vpo_nibble_inbyte_msq);
583 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, spp_outbyte_submicroseq);
584 }
585
586 /* enter PS2 mode to configure submsq */
587 if (ppb_set_mode(ppbus, PPB_PS2) != -1) {
588
598 /* ppbus automatically restore the last mode entered during detection */
599 switch (vpo->vpo_mode_found) {
600 case VP0_MODE_EPP:
601 ppb_MS_GET_init(ppbus, vpo->vpo_dev, epp17_instr);
602 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, epp17_outstr);
603 printf("imm%d: EPP mode\n", vpo->vpo_unit);
604 break;
605 case VP0_MODE_PS2:
589 ppb_MS_GET_init(ppbus, vpo->vpo_dev, ps2_inbyte_submicroseq);
590 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, spp_outbyte_submicroseq);
606 ppb_MS_GET_init(ppbus, vpo->vpo_dev, ps2_inbyte_submicroseq);
607 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, spp_outbyte_submicroseq);
591 }
592
593 epp = ppb_get_epp_protocol(ppbus);
594
595 /* enter EPP mode to configure submsq */
596 if (ppb_set_mode(ppbus, PPB_EPP) != -1) {
597
598 switch (epp) {
599 case EPP_1_9:
600 case EPP_1_7:
601 ppb_MS_GET_init(ppbus, vpo->vpo_dev, epp17_instr);
602 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, epp17_outstr);
603 break;
604 default:
605 panic("%s: unknown EPP protocol (0x%x)", __FUNCTION__,
606 epp);
607 }
608 }
609
610 /* try to enter EPP or PS/2 mode, NIBBLE otherwise */
611 if (ppb_set_mode(ppbus, PPB_EPP) != -1) {
612 switch (epp) {
613 case EPP_1_9:
614 printf("imm%d: EPP 1.9 mode\n", vpo->vpo_unit);
615 break;
616 case EPP_1_7:
617 printf("imm%d: EPP 1.7 mode\n", vpo->vpo_unit);
618 break;
619 default:
620 panic("%s: unknown EPP protocol (0x%x)", __FUNCTION__,
621 epp);
622 }
623 } else if (ppb_set_mode(ppbus, PPB_PS2) != -1)
624 printf("imm%d: PS2 mode\n", vpo->vpo_unit);
608 printf("imm%d: PS2 mode\n", vpo->vpo_unit);
625
626 else if (ppb_set_mode(ppbus, PPB_NIBBLE) != -1)
609 break;
610 case VP0_MODE_NIBBLE:
611 ppb_MS_GET_init(ppbus, vpo->vpo_dev, vpo->vpo_nibble_inbyte_msq);
612 ppb_MS_PUT_init(ppbus, vpo->vpo_dev, spp_outbyte_submicroseq);
627 printf("imm%d: NIBBLE mode\n", vpo->vpo_unit);
613 printf("imm%d: NIBBLE mode\n", vpo->vpo_unit);
628
629 else {
630 printf("imm%d: can't enter NIBBLE, PS2 or EPP mode\n",
631 vpo->vpo_unit);
632
633 ppb_release_bus(ppbus, vpo->vpo_dev);
634
635 free(vpo->vpo_nibble_inbyte_msq, M_DEVBUF);
636 return (ENXIO);
614 break;
615 default:
616 panic("imm: unknown mode %d", vpo->vpo_mode_found);
637 }
638
639 ppb_release_bus(ppbus, vpo->vpo_dev);
640
641 return (0);
642}
643
644/*

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618
619 ppb_release_bus(ppbus, vpo->vpo_dev);
620
621 return (0);
622}
623
624/*

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