summaryrefslogtreecommitdiff
path: root/sys/dev/pci/bha_pci.c
blob: 42e1b485a47b1ccdb438f0837264f7b44434aeca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/*	$NetBSD: bha_pci.c,v 1.41 2016/10/13 17:11:09 jdolecek Exp $	*/

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Charles M. Hannum.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bha_pci.c,v 1.41 2016/10/13 17:11:09 jdolecek Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <sys/bus.h>
#include <sys/intr.h>

#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>

#include <dev/ic/bhareg.h>
#include <dev/ic/bhavar.h>

#define	PCI_CBIO	0x10

/*
 * Check the slots looking for a board we recognise
 * If we find one, note its address (slot) and call
 * the actual probe routine to check it out.
 */
static int
bha_pci_match(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = aux;
	bus_space_tag_t iot;
	bus_space_handle_t ioh;
	bus_size_t iosize;
	int rv;

	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_BUSLOGIC)
		return (0);

	if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC &&
	    PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
		return (0);

	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
	    NULL, &iosize))
		return (0);

	rv = bha_find(iot, ioh);

	bus_space_unmap(iot, ioh, iosize);

	return (rv);
}

/*
 * Attach all the sub-devices we can find
 */
static void
bha_pci_attach(device_t parent, device_t self, void *aux)
{
	struct pci_attach_args *pa = aux;
	struct bha_softc *sc = device_private(self);
	bus_space_tag_t iot;
	bus_space_handle_t ioh;
	pci_chipset_tag_t pc = pa->pa_pc;
	pci_intr_handle_t ih;
	pcireg_t csr;
	const char *model, *intrstr;
	char intrbuf[PCI_INTRSTR_LEN];

	sc->sc_dev = self;

	aprint_naive(": SCSI controller\n");

	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER_NC)
		model = "BusLogic 9xxC SCSI";
	else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BUSLOGIC_MULTIMASTER)
		model = "BusLogic 9xxC SCSI";
	else
		model = "unknown model!";
	aprint_normal(": %s\n", model);

	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh,
	    NULL, NULL)) {
		aprint_error_dev(sc->sc_dev, "unable to map device registers\n");
		return;
	}

	sc->sc_iot = iot;
	sc->sc_ioh = ioh;
	sc->sc_dmat = pa->pa_dmat;
	if (!bha_find(iot, ioh))
		panic("bha_pci_attach: bha_find failed");

	sc->sc_dmaflags = 0;

	csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
	    csr | PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE);

	if (pci_intr_map(pa, &ih)) {
		aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
		return;
	}
	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
	sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, bha_intr, sc,
	    device_xname(sc->sc_dev));
	if (sc->sc_ih == NULL) {
		aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
		if (intrstr != NULL)
			aprint_error(" at %s", intrstr);
		aprint_error("\n");
		return;
	}
	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);

	bha_attach(sc);

	bha_disable_isacompat(sc);
}

CFATTACH_DECL_NEW(bha_pci, sizeof(struct bha_softc),
    bha_pci_match, bha_pci_attach, NULL, NULL);