1 | /* $NetBSD: if_malo_pci.c,v 1.5 2014/03/29 19:28:25 christos Exp $ */ |
2 | /* $OpenBSD: if_malo_pci.c,v 1.6 2010/08/28 23:19:29 deraadt Exp $ */ |
3 | |
4 | /* |
5 | * Copyright (c) 2006 Marcus Glocker <mglocker@openbsd.org> |
6 | * |
7 | * Permission to use, copy, modify, and distribute this software for any |
8 | * purpose with or without fee is hereby granted, provided that the above |
9 | * copyright notice and this permission notice appear in all copies. |
10 | * |
11 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
12 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
13 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
14 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
15 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
16 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
17 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
18 | */ |
19 | |
20 | /* |
21 | * PCI front-end for the Marvell Libertas |
22 | */ |
23 | |
24 | #include <sys/cdefs.h> |
25 | __KERNEL_RCSID(0, "$NetBSD: if_malo_pci.c,v 1.5 2014/03/29 19:28:25 christos Exp $" ); |
26 | |
27 | #include <sys/param.h> |
28 | #include <sys/sockio.h> |
29 | #include <sys/mbuf.h> |
30 | #include <sys/kernel.h> |
31 | #include <sys/socket.h> |
32 | #include <sys/systm.h> |
33 | #include <sys/malloc.h> |
34 | #include <sys/device.h> |
35 | #include <sys/bus.h> |
36 | |
37 | #include <machine/intr.h> |
38 | |
39 | #include <net/if.h> |
40 | #include <net/if_dl.h> |
41 | #include <net/if_media.h> |
42 | #include <net/if_ether.h> |
43 | |
44 | #include <netinet/in.h> |
45 | |
46 | #include <net80211/ieee80211_var.h> |
47 | #include <net80211/ieee80211_radiotap.h> |
48 | |
49 | #include <dev/ic/malovar.h> |
50 | |
51 | #include <dev/pci/pcireg.h> |
52 | #include <dev/pci/pcivar.h> |
53 | #include <dev/pci/pcidevs.h> |
54 | |
55 | /* Base Address Register */ |
56 | #define MALO_PCI_BAR1 0x10 |
57 | #define MALO_PCI_BAR2 0x14 |
58 | |
59 | static int malo_pci_match(device_t parent, cfdata_t match, void *aux); |
60 | static void malo_pci_attach(device_t, device_t, void *); |
61 | static int malo_pci_detach(device_t, int); |
62 | static bool malo_pci_suspend(device_t, const pmf_qual_t *); |
63 | static bool malo_pci_resume(device_t, const pmf_qual_t *); |
64 | |
65 | struct malo_pci_softc { |
66 | struct malo_softc sc_malo; |
67 | |
68 | pci_chipset_tag_t sc_pc; |
69 | void *sc_ih; |
70 | |
71 | bus_size_t sc_mapsize1; |
72 | bus_size_t sc_mapsize2; |
73 | }; |
74 | |
75 | CFATTACH_DECL_NEW(malo_pci, sizeof(struct malo_pci_softc), |
76 | malo_pci_match, malo_pci_attach, malo_pci_detach, NULL); |
77 | |
78 | static int |
79 | malo_pci_match(device_t parent, cfdata_t match, void *aux) |
80 | { |
81 | struct pci_attach_args *pa = aux; |
82 | |
83 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_MARVELL) |
84 | return (0); |
85 | |
86 | switch (PCI_PRODUCT(pa->pa_id)) { |
87 | case PCI_PRODUCT_MARVELL_88W8310: |
88 | case PCI_PRODUCT_MARVELL_88W8335_1: |
89 | case PCI_PRODUCT_MARVELL_88W8335_2: |
90 | return (1); |
91 | } |
92 | |
93 | return (0); |
94 | } |
95 | |
96 | static void |
97 | malo_pci_attach(device_t parent, device_t self, void *aux) |
98 | { |
99 | struct malo_pci_softc *psc = device_private(self); |
100 | struct pci_attach_args *pa = aux; |
101 | struct malo_softc *sc = &psc->sc_malo; |
102 | const char *intrstr = NULL; |
103 | pci_intr_handle_t ih; |
104 | pcireg_t memtype1, memtype2; |
105 | int error; |
106 | char intrbuf[PCI_INTRSTR_LEN]; |
107 | |
108 | sc->sc_dev = self; |
109 | sc->sc_dmat = pa->pa_dmat; |
110 | psc->sc_pc = pa->pa_pc; |
111 | |
112 | aprint_normal("\n" ); |
113 | aprint_normal_dev(self,"Marvell Libertas Wireless\n" ); |
114 | |
115 | /* map control / status registers */ |
116 | memtype1 = pci_mapreg_type(pa->pa_pc, pa->pa_tag, MALO_PCI_BAR1); |
117 | switch (memtype1) { |
118 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: |
119 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: |
120 | break; |
121 | default: |
122 | aprint_error_dev(self, "invalid base address register\n" ); |
123 | return; |
124 | } |
125 | |
126 | error = pci_mapreg_map(pa, MALO_PCI_BAR1, |
127 | memtype1, 0, &sc->sc_mem1_bt, &sc->sc_mem1_bh, |
128 | NULL, &psc->sc_mapsize1); |
129 | if (error != 0) { |
130 | aprint_error_dev(self, "can't map 1st mem space\n" ); |
131 | return; |
132 | } |
133 | |
134 | /* map control / status registers */ |
135 | memtype2 = pci_mapreg_type(pa->pa_pc, pa->pa_tag, MALO_PCI_BAR1); |
136 | switch (memtype2) { |
137 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: |
138 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: |
139 | break; |
140 | default: |
141 | aprint_error_dev(self, "invalid base address register\n" ); |
142 | return; |
143 | } |
144 | |
145 | error = pci_mapreg_map(pa, MALO_PCI_BAR2, |
146 | memtype2, 0, &sc->sc_mem2_bt, &sc->sc_mem2_bh, |
147 | NULL, &psc->sc_mapsize2); |
148 | if (error != 0) { |
149 | aprint_error_dev(self, "can't map 2nd mem space\n" ); |
150 | return; |
151 | } |
152 | |
153 | /* map interrupt */ |
154 | if (pci_intr_map(pa, &ih) != 0) { |
155 | aprint_error_dev(self, "can't map interrupt\n" ); |
156 | return; |
157 | } |
158 | |
159 | /* establish interrupt */ |
160 | intrstr = pci_intr_string(psc->sc_pc, ih, intrbuf, sizeof(intrbuf)); |
161 | psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, malo_intr, sc); |
162 | if (psc->sc_ih == NULL) { |
163 | aprint_error_dev(self, "could not establish interrupt" ); |
164 | if (intrstr != NULL) |
165 | aprint_error(" at %s" , intrstr); |
166 | aprint_error("\n" ); |
167 | return; |
168 | } |
169 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
170 | |
171 | malo_attach(sc); |
172 | |
173 | if (pmf_device_register(self, malo_pci_suspend, malo_pci_resume)) |
174 | pmf_class_network_register(self, &sc->sc_if); |
175 | else |
176 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
177 | } |
178 | |
179 | int |
180 | malo_pci_detach(device_t self, int flags) |
181 | { |
182 | struct malo_pci_softc *psc = device_private(self); |
183 | struct malo_softc *sc = &psc->sc_malo; |
184 | |
185 | malo_detach(sc); |
186 | pci_intr_disestablish(psc->sc_pc, psc->sc_ih); |
187 | |
188 | return (0); |
189 | } |
190 | |
191 | static bool |
192 | malo_pci_suspend(device_t self, const pmf_qual_t *qual) |
193 | { |
194 | struct malo_pci_softc *psc = device_private(self); |
195 | struct malo_softc *sc = &psc->sc_malo; |
196 | struct ifnet *ifp = &sc->sc_if; |
197 | |
198 | malo_stop(ifp, 1); |
199 | |
200 | return true; |
201 | } |
202 | |
203 | static bool |
204 | malo_pci_resume(device_t self, const pmf_qual_t *qual) |
205 | { |
206 | struct malo_pci_softc *psc = device_private(self); |
207 | struct malo_softc *sc = &psc->sc_malo; |
208 | struct ifnet *ifp = &sc->sc_if; |
209 | |
210 | if (ifp->if_flags & IFF_UP) |
211 | malo_init(ifp); |
212 | |
213 | return true; |
214 | } |
215 | |