1 /* $OpenBSD: if_sf_pci.c,v 1.16 2024/05/24 06:02:56 jsg Exp $ */
2 /* $NetBSD: if_sf_pci.c,v 1.10 2006/06/17 23:34:27 christos Exp $ */
3
4 /*-
5 * Copyright (c) 2001 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * PCI bus front-end for the Adaptec AIC-6915 (``Starfire'')
35 * 10/100 Ethernet controller.
36 */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/device.h>
41
42 #include <net/if.h>
43
44 #include <netinet/in.h>
45 #include <netinet/if_ether.h>
46
47 #include <net/if_media.h>
48
49 #include <machine/bus.h>
50 #include <machine/intr.h>
51
52 #include <dev/mii/miivar.h>
53
54 #include <dev/ic/aic6915.h>
55
56 #include <dev/pci/pcireg.h>
57 #include <dev/pci/pcivar.h>
58 #include <dev/pci/pcidevs.h>
59
60 struct sf_pci_softc {
61 struct sf_softc sc_starfire; /* read Starfire softc */
62
63 /* PCI-specific goo. */
64 void *sc_ih; /* interrupt handle */
65 };
66
67 int sf_pci_match(struct device *, void *, void *);
68 void sf_pci_attach(struct device *, struct device *, void *);
69
70 const struct cfattach sf_pci_ca = {
71 sizeof(struct sf_pci_softc), sf_pci_match, sf_pci_attach
72 };
73
74 const struct pci_matchid sf_pci_products[] = {
75 { PCI_VENDOR_ADP, PCI_PRODUCT_ADP_AIC6915 },
76 };
77
78 int
sf_pci_match(struct device * parent,void * match,void * aux)79 sf_pci_match(struct device *parent, void *match, void *aux)
80 {
81 return (pci_matchbyid((struct pci_attach_args *)aux, sf_pci_products,
82 nitems(sf_pci_products)));
83 }
84
85 void
sf_pci_attach(struct device * parent,struct device * self,void * aux)86 sf_pci_attach(struct device *parent, struct device *self, void *aux)
87 {
88 struct sf_pci_softc *psc = (void *) self;
89 struct sf_softc *sc = &psc->sc_starfire;
90 struct pci_attach_args *pa = aux;
91 pci_intr_handle_t ih;
92 const char *intrstr = NULL;
93 bus_space_tag_t iot, memt;
94 bus_space_handle_t ioh, memh;
95 int ioh_valid, memh_valid;
96 bus_size_t iosize, memsize;
97 pcireg_t reg;
98
99 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);
100
101 /*
102 * Map the device.
103 */
104 reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, SF_PCI_MEMBA);
105 switch (reg) {
106 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT:
107 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT:
108 memh_valid = (pci_mapreg_map(pa, SF_PCI_MEMBA,
109 reg, 0, &memt, &memh, &memsize, NULL, 0) == 0);
110 break;
111 default:
112 memh_valid = 0;
113 }
114
115 ioh_valid = (pci_mapreg_map(pa,
116 (reg == (PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT)) ?
117 SF_PCI_IOBA : SF_PCI_IOBA - 0x04,
118 PCI_MAPREG_TYPE_IO, 0,
119 &iot, &ioh, &iosize, NULL, 0) == 0);
120
121 if (memh_valid) {
122 sc->sc_st = memt;
123 sc->sc_sh = memh;
124 sc->sc_iomapped = 0;
125 } else if (ioh_valid) {
126 sc->sc_st = iot;
127 sc->sc_sh = ioh;
128 sc->sc_iomapped = 1;
129 } else {
130 printf(": unable to map device registers\n");
131 return;
132 }
133
134 sc->sc_dmat = pa->pa_dmat;
135
136 /*
137 * Map and establish our interrupt.
138 */
139 if (pci_intr_map(pa, &ih)) {
140 printf(": unable to map interrupt\n");
141 goto out;
142 }
143 intrstr = pci_intr_string(pa->pa_pc, ih);
144 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, sf_intr, sc,
145 self->dv_xname);
146 if (psc->sc_ih == NULL) {
147 printf(": unable to establish interrupt");
148 if (intrstr != NULL)
149 printf(" at %s", intrstr);
150 printf("\n");
151 goto out;
152 }
153 printf(": %s", intrstr);
154
155 /*
156 * Finish off the attach.
157 */
158 sf_attach(sc);
159 return;
160
161 out:
162 if (ioh_valid)
163 bus_space_unmap(iot, ioh, iosize);
164 if (memh_valid)
165 bus_space_unmap(memt, memh, memsize);
166 }
167