1 /* $NetBSD: if_ne_pci.c,v 1.40 2019/01/27 02:08:42 pgoyette Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
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 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: if_ne_pci.c,v 1.40 2019/01/27 02:08:42 pgoyette Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/syslog.h>
40 #include <sys/socket.h>
41 #include <sys/device.h>
42
43 #include <net/if.h>
44 #include <net/if_ether.h>
45 #include <net/if_media.h>
46
47 #include <sys/bus.h>
48 #include <sys/intr.h>
49
50 #include <dev/pci/pcireg.h>
51 #include <dev/pci/pcivar.h>
52 #include <dev/pci/pcidevs.h>
53
54 #include <dev/ic/dp8390reg.h>
55 #include <dev/ic/dp8390var.h>
56
57 #include <dev/ic/ne2000reg.h>
58 #include <dev/ic/ne2000var.h>
59
60 #include <dev/ic/rtl80x9reg.h>
61 #include <dev/ic/rtl80x9var.h>
62
63 struct ne_pci_softc {
64 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */
65
66 /* PCI-specific goo */
67 void *sc_ih; /* interrupt handle */
68 };
69
70 static int ne_pci_match(device_t, cfdata_t, void *);
71 static void ne_pci_attach(device_t, device_t, void *);
72
73 CFATTACH_DECL_NEW(ne_pci, sizeof(struct ne_pci_softc),
74 ne_pci_match, ne_pci_attach, NULL, NULL);
75
76 static const struct ne_pci_product {
77 pci_vendor_id_t npp_vendor;
78 pci_product_id_t npp_product;
79 int (*npp_mediachange)(struct dp8390_softc *);
80 void (*npp_mediastatus)(struct dp8390_softc *, struct ifmediareq *);
81 void (*npp_init_card)(struct dp8390_softc *);
82 void (*npp_media_init)(struct dp8390_softc *);
83 const char *npp_name;
84 } ne_pci_products[] = {
85 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8029,
86 rtl80x9_mediachange, rtl80x9_mediastatus,
87 rtl80x9_init_card, rtl80x9_media_init,
88 "Realtek 8029" },
89
90 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F,
91 NULL, NULL,
92 NULL, NULL,
93 "Winbond 89C940F" },
94
95 { PCI_VENDOR_WINBOND, PCI_PRODUCT_WINBOND_W89C940F_1,
96 NULL, NULL,
97 NULL, NULL,
98 "Winbond 89C940F" },
99
100 { PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT86C926,
101 NULL, NULL,
102 NULL, NULL,
103 "VIA Technologies VT86C926" },
104
105 { PCI_VENDOR_SURECOM, PCI_PRODUCT_SURECOM_NE34,
106 NULL, NULL,
107 NULL, NULL,
108 "Surecom NE-34" },
109
110 { PCI_VENDOR_NETVIN, PCI_PRODUCT_NETVIN_5000,
111 NULL, NULL,
112 NULL, NULL,
113 "NetVin 5000" },
114
115 /* XXX The following entries need sanity checking in pcidevs */
116 { PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_NE2KETHER,
117 NULL, NULL,
118 NULL, NULL,
119 "Compex" },
120
121 { PCI_VENDOR_PROLAN, PCI_PRODUCT_PROLAN_NE2KETHER,
122 NULL, NULL,
123 NULL, NULL,
124 "ProLAN" },
125
126 { PCI_VENDOR_KTI, PCI_PRODUCT_KTI_NE2KETHER,
127 NULL, NULL,
128 NULL, NULL,
129 "KTI" },
130
131 { 0, 0,
132 NULL, NULL,
133 NULL, NULL,
134 NULL },
135 };
136
137 static const struct ne_pci_product *
ne_pci_lookup(const struct pci_attach_args * pa)138 ne_pci_lookup(const struct pci_attach_args *pa)
139 {
140 const struct ne_pci_product *npp;
141
142 for (npp = ne_pci_products; npp->npp_name != NULL; npp++) {
143 if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor &&
144 PCI_PRODUCT(pa->pa_id) == npp->npp_product)
145 return (npp);
146 }
147 return (NULL);
148 }
149
150 /*
151 * PCI constants.
152 * XXX These should be in a common file!
153 */
154 #define PCI_CBIO PCI_BAR(0) /* Configuration Base IO Address */
155
156 static int
ne_pci_match(device_t parent,cfdata_t match,void * aux)157 ne_pci_match(device_t parent, cfdata_t match, void *aux)
158 {
159 struct pci_attach_args *pa = aux;
160
161 if (ne_pci_lookup(pa) != NULL)
162 return (1);
163
164 return (0);
165 }
166
167 static void
ne_pci_attach(device_t parent,device_t self,void * aux)168 ne_pci_attach(device_t parent, device_t self, void *aux)
169 {
170 struct ne_pci_softc *psc = device_private(self);
171 struct ne2000_softc *nsc = &psc->sc_ne2000;
172 struct dp8390_softc *dsc = &nsc->sc_dp8390;
173 struct pci_attach_args *pa = aux;
174 pci_chipset_tag_t pc = pa->pa_pc;
175 bus_space_tag_t nict;
176 bus_space_handle_t nich;
177 bus_space_tag_t asict;
178 bus_space_handle_t asich;
179 const char *intrstr;
180 const struct ne_pci_product *npp;
181 pci_intr_handle_t ih;
182 pcireg_t csr;
183 char intrbuf[PCI_INTRSTR_LEN];
184
185 npp = ne_pci_lookup(pa);
186 if (npp == NULL) {
187 printf("\n");
188 panic("ne_pci_attach: impossible");
189 }
190
191 dsc->sc_dev = self;
192
193 printf(": %s Ethernet\n", npp->npp_name);
194
195 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
196 &nict, &nich, NULL, NULL)) {
197 aprint_error_dev(dsc->sc_dev, "can't map i/o space\n");
198 return;
199 }
200
201 asict = nict;
202 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
203 NE2000_ASIC_NPORTS, &asich)) {
204 aprint_error_dev(dsc->sc_dev, "can't subregion i/o space\n");
205 return;
206 }
207
208 dsc->sc_regt = nict;
209 dsc->sc_regh = nich;
210
211 nsc->sc_asict = asict;
212 nsc->sc_asich = asich;
213
214 /* Enable the card. */
215 csr = pci_conf_read(pc, pa->pa_tag,
216 PCI_COMMAND_STATUS_REG);
217 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
218 csr | PCI_COMMAND_MASTER_ENABLE);
219
220 /* This interface is always enabled. */
221 dsc->sc_enabled = 1;
222
223 dsc->sc_mediachange = npp->npp_mediachange;
224 dsc->sc_mediastatus = npp->npp_mediastatus;
225 dsc->sc_media_init = npp->npp_media_init;
226 dsc->init_card = npp->npp_init_card;
227
228 /*
229 * Do generic NE2000 attach. This will read the station address
230 * from the EEPROM.
231 */
232 ne2000_attach(nsc, NULL);
233
234 /* Map and establish the interrupt. */
235 if (pci_intr_map(pa, &ih)) {
236 aprint_error_dev(dsc->sc_dev, "couldn't map interrupt\n");
237 return;
238 }
239 intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
240 psc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_NET, dp8390_intr,
241 dsc, device_xname(self));
242 if (psc->sc_ih == NULL) {
243 aprint_error_dev(dsc->sc_dev, "couldn't establish interrupt");
244 if (intrstr != NULL)
245 aprint_error(" at %s", intrstr);
246 aprint_error("\n");
247 return;
248 }
249 aprint_normal_dev(dsc->sc_dev, "interrupting at %s\n", intrstr);
250 }
251