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
59static int malo_pci_match(device_t parent, cfdata_t match, void *aux);
60static void malo_pci_attach(device_t, device_t, void *);
61static int malo_pci_detach(device_t, int);
62static bool malo_pci_suspend(device_t, const pmf_qual_t *);
63static bool malo_pci_resume(device_t, const pmf_qual_t *);
64
65struct 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
75CFATTACH_DECL_NEW(malo_pci, sizeof(struct malo_pci_softc),
76 malo_pci_match, malo_pci_attach, malo_pci_detach, NULL);
77
78static int
79malo_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
96static void
97malo_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
179int
180malo_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
191static bool
192malo_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
203static bool
204malo_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