1 | /* $NetBSD: if_an_pci.c,v 1.35 2014/03/29 19:28:24 christos Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Atsushi Onoe. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * PCI bus front-end for the Aironet PC4500/PC4800 Wireless LAN Adapter. |
34 | * Unlike WaveLAN, this adapter attached as PCI device using a PLX 9050 |
35 | * PCI to "dumb bus" bridge chip. |
36 | */ |
37 | |
38 | #include <sys/cdefs.h> |
39 | __KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.35 2014/03/29 19:28:24 christos Exp $" ); |
40 | |
41 | #include <sys/param.h> |
42 | #include <sys/systm.h> |
43 | #include <sys/mbuf.h> |
44 | #include <sys/malloc.h> |
45 | #include <sys/kernel.h> |
46 | #include <sys/socket.h> |
47 | #include <sys/ioctl.h> |
48 | #include <sys/errno.h> |
49 | #include <sys/device.h> |
50 | #include <sys/callout.h> |
51 | |
52 | #include <machine/endian.h> |
53 | |
54 | #include <net/if.h> |
55 | #include <net/if_dl.h> |
56 | #include <net/if_media.h> |
57 | #include <net/if_ether.h> |
58 | |
59 | #include <net80211/ieee80211_netbsd.h> |
60 | #include <net80211/ieee80211_var.h> |
61 | |
62 | #include <sys/bus.h> |
63 | #include <sys/intr.h> |
64 | |
65 | #include <dev/ic/anreg.h> |
66 | #include <dev/ic/anvar.h> |
67 | |
68 | #include <dev/pci/pcivar.h> |
69 | #include <dev/pci/pcireg.h> |
70 | #include <dev/pci/pcidevs.h> |
71 | |
72 | #define AN_PCI_PLX_IOBA 0x14 /* i/o base for PLX chip */ |
73 | #define AN_PCI_IOBA PCI_BAR(2) /* i/o base */ |
74 | |
75 | struct an_pci_softc { |
76 | struct an_softc sc_an; /* real "an" softc */ |
77 | pci_chipset_tag_t sc_pct; |
78 | pcitag_t sc_pcitag; |
79 | |
80 | /* PCI-specific goo. */ |
81 | void *sc_ih; /* interrupt handle */ |
82 | }; |
83 | |
84 | static int an_pci_match(device_t, cfdata_t, void *); |
85 | static void an_pci_attach(device_t, device_t, void *); |
86 | |
87 | CFATTACH_DECL_NEW(an_pci, sizeof(struct an_pci_softc), |
88 | an_pci_match, an_pci_attach, NULL, NULL); |
89 | |
90 | static const struct an_pci_product { |
91 | u_int32_t app_vendor; /* PCI vendor ID */ |
92 | u_int32_t app_product; /* PCI product ID */ |
93 | } an_pci_products[] = { |
94 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4xxx }, |
95 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 }, |
96 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 }, |
97 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI350 }, |
98 | { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_MPI350 }, |
99 | { 0, 0 } |
100 | }; |
101 | |
102 | static int |
103 | an_pci_match(device_t parent, cfdata_t match, void *aux) |
104 | { |
105 | struct pci_attach_args *pa = aux; |
106 | const struct an_pci_product *app; |
107 | |
108 | for (app = an_pci_products; app->app_vendor != 0; app++) { |
109 | if (PCI_VENDOR(pa->pa_id) == app->app_vendor && |
110 | PCI_PRODUCT(pa->pa_id) == app->app_product) |
111 | return 1; |
112 | } |
113 | return 0; |
114 | } |
115 | |
116 | static void |
117 | an_pci_attach(device_t parent, device_t self, void *aux) |
118 | { |
119 | struct pci_attach_args *pa = (struct pci_attach_args *)aux; |
120 | struct an_pci_softc *psc = device_private(self); |
121 | struct an_softc *sc = &psc->sc_an; |
122 | char const *intrstr; |
123 | pci_intr_handle_t ih; |
124 | bus_size_t iosize; |
125 | u_int32_t csr; |
126 | char intrbuf[PCI_INTRSTR_LEN]; |
127 | |
128 | sc->sc_dev = self; |
129 | psc->sc_pct = pa->pa_pc; |
130 | psc->sc_pcitag = pa->pa_tag; |
131 | |
132 | pci_aprint_devinfo(pa, "802.11 controller" ); |
133 | |
134 | /* Map I/O registers */ |
135 | if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, |
136 | &sc->sc_iot, &sc->sc_ioh, NULL, &iosize) != 0) { |
137 | aprint_error_dev(self, "unable to map registers\n" ); |
138 | return; |
139 | } |
140 | |
141 | /* Enable the device. */ |
142 | csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); |
143 | pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, |
144 | csr | PCI_COMMAND_MASTER_ENABLE); |
145 | |
146 | /* Map and establish the interrupt. */ |
147 | if (pci_intr_map(pa, &ih)) { |
148 | aprint_error_dev(self, "unable to map interrupt\n" ); |
149 | return; |
150 | } |
151 | intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); |
152 | psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc); |
153 | if (psc->sc_ih == NULL) { |
154 | aprint_error_dev(self, "unable to establish interrupt" ); |
155 | if (intrstr != NULL) |
156 | aprint_error(" at %s" , intrstr); |
157 | aprint_error("\n" ); |
158 | return; |
159 | } |
160 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
161 | sc->sc_enabled = 1; |
162 | |
163 | if (an_attach(sc) != 0) { |
164 | aprint_error_dev(self, "failed to attach controller\n" ); |
165 | pci_intr_disestablish(pa->pa_pc, psc->sc_ih); |
166 | bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize); |
167 | } |
168 | |
169 | if (pmf_device_register(self, NULL, NULL)) |
170 | pmf_class_network_register(self, &sc->sc_if); |
171 | else |
172 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
173 | } |
174 | |