1 /* $NetBSD: if_ep_pci.c,v 1.55 2018/12/09 11:14:02 jdolecek Exp $ */
2
3 /*-
4 * Copyright (c) 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 /*
34 * Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org>
35 * Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.org>
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by Herb Peyerl.
49 * 4. The name of Herb Peyerl may not be used to endorse or promote products
50 * derived from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 */
63
64 #include <sys/cdefs.h>
65 __KERNEL_RCSID(0, "$NetBSD: if_ep_pci.c,v 1.55 2018/12/09 11:14:02 jdolecek Exp $");
66
67 #include <sys/param.h>
68 #include <sys/systm.h>
69 #include <sys/mbuf.h>
70 #include <sys/socket.h>
71 #include <sys/ioctl.h>
72 #include <sys/errno.h>
73 #include <sys/syslog.h>
74 #include <sys/select.h>
75 #include <sys/device.h>
76
77 #include <net/if.h>
78 #include <net/if_dl.h>
79 #include <net/if_ether.h>
80 #include <net/if_media.h>
81
82 #include <sys/cpu.h>
83 #include <sys/bus.h>
84 #include <sys/intr.h>
85
86 #include <dev/mii/miivar.h>
87
88 #include <dev/ic/elink3var.h>
89 #include <dev/ic/elink3reg.h>
90
91 #include <dev/pci/pcivar.h>
92 #include <dev/pci/pcireg.h>
93 #include <dev/pci/pcidevs.h>
94
95 /*
96 * PCI constants.
97 */
98 #define PCI_CBIO PCI_BAR(0) /* Configuration Base IO Address */
99
100 static int ep_pci_match(device_t , cfdata_t, void *);
101 static void ep_pci_attach(device_t , device_t , void *);
102
103 CFATTACH_DECL_NEW(ep_pci, sizeof(struct ep_softc),
104 ep_pci_match, ep_pci_attach, NULL, NULL);
105
106 static const struct ep_pci_product {
107 u_int32_t epp_prodid; /* PCI product ID */
108 u_short epp_chipset; /* 3Com chipset used */
109 int epp_flags; /* initial softc flags */
110 const char *epp_name; /* device name */
111 } ep_pci_products[] = {
112 { PCI_PRODUCT_3COM_3C590, ELINK_CHIPSET_VORTEX,
113 0,
114 "3c590 Ethernet" },
115
116 /*
117 * Note: The 3c595-MII is an MII connector for an
118 * external PHY. We treat it as `manual' in the
119 * core driver.
120 */
121 { PCI_PRODUCT_3COM_3C595TX, ELINK_CHIPSET_VORTEX,
122 0,
123 "3c595-TX 10/100 Ethernet" },
124 { PCI_PRODUCT_3COM_3C595T4, ELINK_CHIPSET_VORTEX,
125 0,
126 "3c595-T4 10/100 Ethernet" },
127 { PCI_PRODUCT_3COM_3C595MII, ELINK_CHIPSET_VORTEX,
128 0,
129 "3c595-MII 10/100 Ethernet" },
130
131 { PCI_PRODUCT_3COM_3C900TPO, ELINK_CHIPSET_BOOMERANG,
132 0,
133 "3c900-TPO Ethernet" },
134 { PCI_PRODUCT_3COM_3C900COMBO, ELINK_CHIPSET_BOOMERANG,
135 0,
136 "3c900-COMBO Ethernet" },
137
138 { PCI_PRODUCT_3COM_3C905TX, ELINK_CHIPSET_BOOMERANG,
139 ELINK_FLAGS_MII,
140 "3c905-TX 10/100 Ethernet" },
141 { PCI_PRODUCT_3COM_3C905T4, ELINK_CHIPSET_BOOMERANG,
142 ELINK_FLAGS_MII,
143 "3c905-T4 10/100 Ethernet" },
144
145 { 0, 0,
146 0, NULL },
147 };
148
149 static const struct ep_pci_product *
ep_pci_lookup(const struct pci_attach_args * pa)150 ep_pci_lookup(const struct pci_attach_args *pa)
151 {
152 const struct ep_pci_product *epp;
153
154 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
155 return (NULL);
156
157 for (epp = ep_pci_products; epp->epp_name != NULL; epp++)
158 if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
159 return (epp);
160
161 return (NULL);
162 }
163
164 static int
ep_pci_match(device_t parent,cfdata_t match,void * aux)165 ep_pci_match(device_t parent, cfdata_t match, void *aux)
166 {
167 struct pci_attach_args *pa = (struct pci_attach_args *) aux;
168
169 if (ep_pci_lookup(pa) != NULL)
170 return (1);
171
172 return (0);
173 }
174
175 static void
ep_pci_attach(device_t parent,device_t self,void * aux)176 ep_pci_attach(device_t parent, device_t self, void *aux)
177 {
178 struct ep_softc *sc = device_private(self);
179 struct pci_attach_args *pa = aux;
180 pci_chipset_tag_t pc = pa->pa_pc;
181 pci_intr_handle_t ih;
182 const struct ep_pci_product *epp;
183 const char *intrstr = NULL;
184 char intrbuf[PCI_INTRSTR_LEN];
185
186 aprint_naive(": Ethernet controller\n");
187
188 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
189 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
190 aprint_error(": can't map i/o space\n");
191 return;
192 }
193
194 epp = ep_pci_lookup(pa);
195 if (epp == NULL) {
196 printf("\n");
197 panic("ep_pci_attach: impossible");
198 }
199
200 aprint_normal(": 3Com %s\n", epp->epp_name);
201
202 sc->sc_dev = self;
203 sc->enable = NULL;
204 sc->disable = NULL;
205 sc->enabled = 1;
206
207 sc->bustype = ELINK_BUS_PCI;
208 sc->ep_flags = epp->epp_flags;
209
210 /* Enable the card. */
211 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
212 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
213 PCI_COMMAND_MASTER_ENABLE);
214
215 /* Map and establish the interrupt. */
216 if (pci_intr_map(pa, &ih)) {
217 aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
218 return;
219 }
220 intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
221 sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_NET, epintr, sc,
222 device_xname(self));
223 if (sc->sc_ih == NULL) {
224 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
225 if (intrstr != NULL)
226 aprint_error(" at %s", intrstr);
227 aprint_error("\n");
228 return;
229 }
230 aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
231
232 epconfig(sc, epp->epp_chipset, NULL);
233 }
234