1 /* $OpenBSD: if_an_pci.c,v 1.16 2006/03/10 00:27:56 jsg Exp $ */
2
3 /*
4 * Copyright (c) 1997, 1998, 1999
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: src/sys/dev/an/if_an_pci.c,v 1.1 2000/01/14 20:40:56 wpaul Exp $
35 */
36
37 /*
38 * This is a PCI shim for the Aironet PC4500/4800 wireless network
39 * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
40 * which all have basically the same interface. The ISA and PCI cards
41 * are actually bridge adapters with PCMCIA cards inserted into them,
42 * however they appear as normal PCI or ISA devices to the host.
43 *
44 * All we do here is handle the PCI match and attach and set up an
45 * interrupt handler entry point. The PCI version of the card uses
46 * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
47 * multiple PCI address space mappings. The primary mapping at PCI
48 * register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
49 * The I/O address of the Aironet is actually at register 0x18, which
50 * is the local bus mapping register for bus space 0. There are also
51 * registers for additional register spaces at registers 0x1C and
52 * 0x20, but these are unused in the Aironet devices. To find out
53 * more, you need a datasheet for the 9050 from PLX, but you have
54 * to go through their sales office to get it. Bleh.
55 */
56
57 #include <sys/param.h>
58 #include <sys/systm.h>
59 #include <sys/device.h>
60 #include <sys/timeout.h>
61 #include <sys/socket.h>
62 #include <sys/tree.h>
63
64 #include <net/if.h>
65 #include <net/if_dl.h>
66 #include <net/if_media.h>
67
68 #include <netinet/in.h>
69 #include <netinet/if_ether.h>
70
71 #include <net80211/ieee80211_radiotap.h>
72 #include <net80211/ieee80211_var.h>
73
74 #include <machine/bus.h>
75 #include <machine/intr.h>
76
77 #include <dev/pci/pcireg.h>
78 #include <dev/pci/pcivar.h>
79 #include <dev/pci/pcidevs.h>
80
81 #include <dev/ic/anreg.h>
82 #include <dev/ic/anvar.h>
83
84 #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
85 #define AN_PCI_LOIO 0x18 /* Aironet iobase */
86
87 int an_pci_match(struct device *, void *, void *);
88 void an_pci_attach(struct device *, struct device *, void *);
89
90 struct cfattach an_pci_ca = {
91 sizeof (struct an_softc), an_pci_match, an_pci_attach
92 };
93
94 const struct pci_matchid an_pci_devices[] = {
95 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI352 },
96 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 },
97 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 },
98 { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800_1 },
99 };
100
101 int
102 an_pci_match(struct device *parent, void *match, void *aux)
103 {
104 return (pci_matchbyid((struct pci_attach_args *)aux, an_pci_devices,
105 sizeof(an_pci_devices)/sizeof(an_pci_devices[0])));
106 }
107
108 void
109 an_pci_attach(struct device *parent, struct device *self, void *aux)
110 {
111 struct an_softc *sc = (struct an_softc *)self;
112 struct pci_attach_args *pa = aux;
113 pci_intr_handle_t ih;
114 bus_space_handle_t ioh;
115 bus_space_tag_t iot = pa->pa_iot;
116 pci_chipset_tag_t pc = pa->pa_pc;
117 const char *intrstr;
118
119 /* Map the I/O ports. */
120 if (pci_mapreg_map(pa, AN_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
121 &iot, &ioh, NULL, NULL, 0) != 0) {
122 printf(": can't map I/O space\n");
123 return;
124 }
125 sc->sc_iot = iot;
126 sc->sc_ioh = ioh;
127
128 /* Map and establish the interrupt. */
129 if (pci_intr_map(pa, &ih)) {
130 printf("\n%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
131 return;
132 }
133 intrstr = pci_intr_string(pc, ih);
134 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, an_intr, sc,
135 sc->sc_dev.dv_xname);
136 if (sc->sc_ih == NULL) {
137 printf("\n%s: couldn't establish interrupt",
138 sc->sc_dev.dv_xname);
139 if (intrstr != NULL)
140 printf(" at %s", intrstr);
141 printf("\n");
142 return;
143 }
144 printf(": %s", intrstr);
145
146 sc->sc_enabled = 1;
147
148 an_attach(sc);
149 }