1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting
5 * Copyright (c) 2007-2009 Marvell Semiconductor, Inc.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer,
13 * without modification.
14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
15 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
16 * redistribution must be conditioned upon including a substantially
17 * similar Disclaimer requirement for further binary redistribution.
18 *
19 * NO WARRANTY
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
23 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
24 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
25 * OR 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
28 * IN 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
30 * THE POSSIBILITY OF SUCH DAMAGES.
31 */
32
33 /*
34 * PCI front-end for the Marvell Wireless LAN controller driver.
35 */
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/module.h>
40 #include <sys/kernel.h>
41 #include <sys/lock.h>
42 #include <sys/malloc.h>
43 #include <sys/mbuf.h>
44 #include <sys/mutex.h>
45 #include <sys/errno.h>
46
47 #include <machine/bus.h>
48 #include <machine/resource.h>
49 #include <sys/bus.h>
50 #include <sys/rman.h>
51
52 #include <sys/socket.h>
53
54 #include <net/ethernet.h>
55 #include <net/if.h>
56 #include <net/if_media.h>
57 #include <net/if_arp.h>
58 #include <net/route.h>
59
60 #include <net80211/ieee80211_var.h>
61
62 #include <dev/mwl/if_mwlvar.h>
63
64 #include <dev/pci/pcivar.h>
65 #include <dev/pci/pcireg.h>
66
67 /*
68 * PCI glue.
69 */
70
71 struct mwl_pci_softc {
72 struct mwl_softc sc_sc;
73 struct resource *sc_sr0; /* BAR0 memory resource */
74 struct resource *sc_sr1; /* BAR1 memory resource */
75 struct resource *sc_irq; /* irq resource */
76 void *sc_ih; /* interrupt handler */
77 };
78
79 #define BS_BAR0 0x10
80 #define BS_BAR1 0x14
81
82 struct mwl_pci_ident {
83 uint16_t vendor;
84 uint16_t device;
85 const char *name;
86 };
87
88 static const struct mwl_pci_ident mwl_pci_ids[] = {
89 { 0x11ab, 0x2a02, "Marvell 88W8363" },
90 { 0x11ab, 0x2a03, "Marvell 88W8363" },
91 { 0x11ab, 0x2a0a, "Marvell 88W8363" },
92 { 0x11ab, 0x2a0b, "Marvell 88W8363" },
93 { 0x11ab, 0x2a0c, "Marvell 88W8363" },
94 { 0x11ab, 0x2a21, "Marvell 88W8363" },
95 { 0x11ab, 0x2a24, "Marvell 88W8363" },
96 { 0, 0, NULL }
97 };
98
99 const static struct mwl_pci_ident *
mwl_pci_lookup(int vendor,int device)100 mwl_pci_lookup(int vendor, int device)
101 {
102 const struct mwl_pci_ident *ident;
103
104 for (ident = mwl_pci_ids; ident->name != NULL; ident++)
105 if (vendor == ident->vendor && device == ident->device)
106 return ident;
107 return NULL;
108 }
109
110 static int
mwl_pci_probe(device_t dev)111 mwl_pci_probe(device_t dev)
112 {
113 const struct mwl_pci_ident *ident;
114
115 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev));
116 if (ident != NULL) {
117 device_set_desc(dev, ident->name);
118 return BUS_PROBE_DEFAULT;
119 }
120 return ENXIO;
121 }
122
123 static int
mwl_pci_attach(device_t dev)124 mwl_pci_attach(device_t dev)
125 {
126 struct mwl_pci_softc *psc = device_get_softc(dev);
127 struct mwl_softc *sc = &psc->sc_sc;
128 int rid, error = ENXIO;
129
130 sc->sc_dev = dev;
131
132 pci_enable_busmaster(dev);
133
134 /*
135 * Setup memory-mapping of PCI registers.
136 */
137 rid = BS_BAR0;
138 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
139 RF_ACTIVE);
140 if (psc->sc_sr0 == NULL) {
141 device_printf(dev, "cannot map BAR0 register space\n");
142 goto bad;
143 }
144 rid = BS_BAR1;
145 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
146 RF_ACTIVE);
147 if (psc->sc_sr1 == NULL) {
148 device_printf(dev, "cannot map BAR1 register space\n");
149 goto bad1;
150 }
151 sc->sc_invalid = 1;
152
153 /*
154 * Arrange interrupt line.
155 */
156 rid = 0;
157 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
158 RF_SHAREABLE|RF_ACTIVE);
159 if (psc->sc_irq == NULL) {
160 device_printf(dev, "could not map interrupt\n");
161 goto bad2;
162 }
163 if (bus_setup_intr(dev, psc->sc_irq,
164 INTR_TYPE_NET | INTR_MPSAFE,
165 NULL, mwl_intr, sc, &psc->sc_ih)) {
166 device_printf(dev, "could not establish interrupt\n");
167 goto bad3;
168 }
169
170 /*
171 * Setup DMA descriptor area.
172 */
173 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
174 1, 0, /* alignment, bounds */
175 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
176 BUS_SPACE_MAXADDR, /* highaddr */
177 NULL, NULL, /* filter, filterarg */
178 BUS_SPACE_MAXSIZE, /* maxsize */
179 MWL_TXDESC, /* nsegments */
180 BUS_SPACE_MAXSIZE, /* maxsegsize */
181 0, /* flags */
182 NULL, /* lockfunc */
183 NULL, /* lockarg */
184 &sc->sc_dmat)) {
185 device_printf(dev, "cannot allocate DMA tag\n");
186 goto bad4;
187 }
188
189 /*
190 * Finish off the attach.
191 */
192 MWL_LOCK_INIT(sc);
193 sc->sc_io0t = rman_get_bustag(psc->sc_sr0);
194 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0);
195 sc->sc_io1t = rman_get_bustag(psc->sc_sr1);
196 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1);
197 if (mwl_attach(pci_get_device(dev), sc) == 0)
198 return (0);
199
200 MWL_LOCK_DESTROY(sc);
201 bus_dma_tag_destroy(sc->sc_dmat);
202 bad4:
203 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih);
204 bad3:
205 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq);
206 bad2:
207 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1);
208 bad1:
209 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0);
210 bad:
211 return (error);
212 }
213
214 static int
mwl_pci_detach(device_t dev)215 mwl_pci_detach(device_t dev)
216 {
217 struct mwl_pci_softc *psc = device_get_softc(dev);
218 struct mwl_softc *sc = &psc->sc_sc;
219
220 /* check if device was removed */
221 sc->sc_invalid = !bus_child_present(dev);
222
223 mwl_detach(sc);
224
225 bus_generic_detach(dev);
226 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih);
227 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq);
228
229 bus_dma_tag_destroy(sc->sc_dmat);
230 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1);
231 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0);
232
233 MWL_LOCK_DESTROY(sc);
234
235 return (0);
236 }
237
238 static int
mwl_pci_shutdown(device_t dev)239 mwl_pci_shutdown(device_t dev)
240 {
241 struct mwl_pci_softc *psc = device_get_softc(dev);
242
243 mwl_shutdown(&psc->sc_sc);
244 return (0);
245 }
246
247 static int
mwl_pci_suspend(device_t dev)248 mwl_pci_suspend(device_t dev)
249 {
250 struct mwl_pci_softc *psc = device_get_softc(dev);
251
252 mwl_suspend(&psc->sc_sc);
253
254 return (0);
255 }
256
257 static int
mwl_pci_resume(device_t dev)258 mwl_pci_resume(device_t dev)
259 {
260 struct mwl_pci_softc *psc = device_get_softc(dev);
261
262 pci_enable_busmaster(dev);
263
264 mwl_resume(&psc->sc_sc);
265
266 return (0);
267 }
268
269 static device_method_t mwl_pci_methods[] = {
270 /* Device interface */
271 DEVMETHOD(device_probe, mwl_pci_probe),
272 DEVMETHOD(device_attach, mwl_pci_attach),
273 DEVMETHOD(device_detach, mwl_pci_detach),
274 DEVMETHOD(device_shutdown, mwl_pci_shutdown),
275 DEVMETHOD(device_suspend, mwl_pci_suspend),
276 DEVMETHOD(device_resume, mwl_pci_resume),
277 { 0,0 }
278 };
279
280 static driver_t mwl_pci_driver = {
281 "mwl",
282 mwl_pci_methods,
283 sizeof (struct mwl_pci_softc)
284 };
285
286 DRIVER_MODULE(mwl, pci, mwl_pci_driver, 0, 0);
287 MODULE_VERSION(mwl, 1);
288 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */
289 MODULE_DEPEND(mwl, firmware, 1, 1, 1);
290