1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
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: stable/12/sys/dev/wi/if_wi_pci.c 365608 2020-09-10 19:00:17Z bz $
35 */
36
37 /*
38 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
39 *
40 * Written by Bill Paul <wpaul@ctr.columbia.edu>
41 * Electrical Engineering Department
42 * Columbia University, New York City
43 */
44
45 #include <sys/param.h>
46 #include <sys/kernel.h>
47 #include <sys/malloc.h>
48 #include <sys/socket.h>
49 #include <sys/systm.h>
50 #include <sys/module.h>
51 #include <sys/bus.h>
52
53 #include <machine/bus.h>
54 #include <machine/resource.h>
55 #include <sys/rman.h>
56
57 #include <dev/pci/pcireg.h>
58 #include <dev/pci/pcivar.h>
59
60 #include <net/if.h>
61 #include <net/if_var.h>
62 #include <net/if_arp.h>
63 #include <net/ethernet.h>
64 #include <net/if_media.h>
65 #include <net/if_types.h>
66
67 #include <net80211/ieee80211_var.h>
68 #include <net80211/ieee80211_radiotap.h>
69
70 #include <dev/wi/if_wavelan_ieee.h>
71 #include <dev/wi/if_wireg.h>
72 #include <dev/wi/if_wivar.h>
73
74 static int wi_pci_probe(device_t);
75 static int wi_pci_attach(device_t);
76 static int wi_pci_suspend(device_t);
77 static int wi_pci_resume(device_t);
78
79 static device_method_t wi_pci_methods[] = {
80 /* Device interface */
81 DEVMETHOD(device_probe, wi_pci_probe),
82 DEVMETHOD(device_attach, wi_pci_attach),
83 DEVMETHOD(device_detach, wi_detach),
84 DEVMETHOD(device_shutdown, wi_shutdown),
85 DEVMETHOD(device_suspend, wi_pci_suspend),
86 DEVMETHOD(device_resume, wi_pci_resume),
87 { 0, 0 }
88 };
89
90 static driver_t wi_pci_driver = {
91 "wi",
92 wi_pci_methods,
93 sizeof(struct wi_softc)
94 };
95
96 static struct {
97 unsigned int vendor,device;
98 int bus_type;
99 char *desc;
100 } pci_ids[] = {
101 /* Sorted by description */
102 {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
103 {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
104 {0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"},
105 {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
106 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
107 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
108 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
109 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
110 {0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"},
111 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
112 {0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"},
113 {0, 0, 0, NULL}
114 };
115
116 DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, 0, 0);
117 MODULE_DEPEND(wi, pci, 1, 1, 1);
118 MODULE_DEPEND(wi, wlan, 1, 1, 1);
119
120 static int
wi_pci_probe(dev)121 wi_pci_probe(dev)
122 device_t dev;
123 {
124 struct wi_softc *sc;
125 int i;
126
127 sc = device_get_softc(dev);
128 for(i=0; pci_ids[i].vendor != 0; i++) {
129 if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
130 (pci_get_device(dev) == pci_ids[i].device)) {
131 sc->wi_bus_type = pci_ids[i].bus_type;
132 device_set_desc(dev, pci_ids[i].desc);
133 return (BUS_PROBE_DEFAULT);
134 }
135 }
136 return(ENXIO);
137 }
138
139 static int
wi_pci_attach(device_t dev)140 wi_pci_attach(device_t dev)
141 {
142 struct wi_softc *sc;
143 u_int32_t command;
144 u_int16_t reg;
145 int error;
146 int timeout;
147
148 sc = device_get_softc(dev);
149
150 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
151 error = wi_alloc(dev, WI_PCI_IORES);
152 if (error)
153 return (error);
154
155 /* Make sure interrupts are disabled. */
156 CSR_WRITE_2(sc, WI_INT_EN, 0);
157 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
158
159 /* We have to do a magic PLX poke to enable interrupts */
160 sc->local_rid = WI_PCI_LOCALRES;
161 sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
162 &sc->local_rid, RF_ACTIVE);
163 sc->wi_localtag = rman_get_bustag(sc->local);
164 sc->wi_localhandle = rman_get_bushandle(sc->local);
165 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
166 WI_LOCAL_INTCSR);
167 command |= WI_LOCAL_INTEN;
168 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
169 WI_LOCAL_INTCSR, command);
170 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
171 sc->local);
172 sc->local = NULL;
173
174 sc->mem_rid = WI_PCI_MEMRES;
175 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
176 &sc->mem_rid, RF_ACTIVE);
177 if (sc->mem == NULL) {
178 device_printf(dev, "couldn't allocate memory\n");
179 wi_free(dev);
180 return (ENXIO);
181 }
182 sc->wi_bmemtag = rman_get_bustag(sc->mem);
183 sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
184
185 /*
186 * Write COR to enable PC card
187 * This is a subset of the protocol that the pccard bus code
188 * would do. In theory, we should parse the CIS to find the
189 * COR offset. In practice, the COR_OFFSET is always 0x3e0.
190 */
191 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE);
192 reg = CSM_READ_1(sc, WI_COR_OFFSET);
193 if (reg != WI_COR_VALUE) {
194 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
195 "wanted %d, got %d\n", WI_COR_VALUE, reg);
196 wi_free(dev);
197 return (ENXIO);
198 }
199 } else {
200 error = wi_alloc(dev, WI_PCI_LMEMRES);
201 if (error)
202 return (error);
203
204 CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET);
205 DELAY(250000);
206
207 CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000);
208 DELAY(500000);
209
210 timeout=2000000;
211 while ((--timeout > 0) &&
212 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
213 DELAY(10);
214
215 if (timeout == 0) {
216 device_printf(dev, "couldn't reset prism pci core.\n");
217 wi_free(dev);
218 return(ENXIO);
219 }
220 }
221
222 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
223 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
224 if (reg != WI_PRISM2STA_MAGIC) {
225 device_printf(dev,
226 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
227 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
228 wi_free(dev);
229 return (ENXIO);
230 }
231
232 error = wi_attach(dev);
233 if (error != 0)
234 wi_free(dev);
235 else
236 gone_in_dev(dev, 13, "pccard removed, wi doesn't support modern crypto");
237 return (error);
238 }
239
240 static int
wi_pci_suspend(device_t dev)241 wi_pci_suspend(device_t dev)
242 {
243 struct wi_softc *sc = device_get_softc(dev);
244
245 WI_LOCK(sc);
246 wi_stop(sc, 1);
247 WI_UNLOCK(sc);
248
249 return (0);
250 }
251
252 static int
wi_pci_resume(device_t dev)253 wi_pci_resume(device_t dev)
254 {
255 struct wi_softc *sc = device_get_softc(dev);
256 struct ieee80211com *ic = &sc->sc_ic;
257
258 WI_LOCK(sc);
259 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
260 WI_UNLOCK(sc);
261 return (0);
262 }
263 if (ic->ic_nrunning > 0)
264 wi_init(sc);
265 WI_UNLOCK(sc);
266 return (0);
267 }
268