73fe241e3f1c5553296a787f300c3a4275446ee0
[dragonfly.git] / sys / dev / netif / wi / if_wi_pci.c
1 /*-
2  * Copyright (c) 1997, 1998, 1999
3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *      This product includes software developed by Bill Paul.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * 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 IN
28  * 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 DAMAGE.
31  *
32  * $FreeBSD: head/sys/dev/wi/if_wi_pci.c 181209 2008-08-02 20:45:28Z imp $
33  */
34
35 /*
36  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
37  *
38  * Written by Bill Paul <wpaul@ctr.columbia.edu>
39  * Electrical Engineering Department
40  * Columbia University, New York City
41  */
42
43 #include <sys/param.h>
44 #include <sys/kernel.h>
45 #include <sys/socket.h>
46 #include <sys/systm.h>
47 #include <sys/module.h>
48 #include <sys/bus.h>
49 #include <sys/rman.h>
50
51 #include <bus/pci/pcireg.h>
52 #include <bus/pci/pcivar.h>
53
54 #include <net/if.h>
55 #include <net/if_arp.h>
56 #include <net/ethernet.h>
57 #include <net/if_media.h>
58 #include <net/if_types.h>
59
60 #include <netproto/802_11/ieee80211_var.h>
61 #include <netproto/802_11/ieee80211_radiotap.h>
62
63 #include <dev/netif/wi/if_wavelan_ieee.h>
64 #include <dev/netif/wi/if_wireg.h>
65 #include <dev/netif/wi/if_wivar.h>
66
67 static int wi_pci_probe(device_t);
68 static int wi_pci_attach(device_t);
69 static int wi_pci_suspend(device_t);
70 static int wi_pci_resume(device_t);
71
72 static device_method_t wi_pci_methods[] = {
73         /* Device interface */
74         DEVMETHOD(device_probe,         wi_pci_probe),
75         DEVMETHOD(device_attach,        wi_pci_attach),
76         DEVMETHOD(device_detach,        wi_detach),
77         DEVMETHOD(device_shutdown,      wi_shutdown),
78         DEVMETHOD(device_suspend,       wi_pci_suspend),
79         DEVMETHOD(device_resume,        wi_pci_resume),
80
81         { 0, 0 }
82 };
83
84 static driver_t wi_pci_driver = {
85         "wi",
86         wi_pci_methods,
87         sizeof(struct wi_softc)
88 };
89
90 static struct {
91         unsigned int vendor,device;
92         int bus_type;
93         char *desc;
94 } pci_ids[] = {
95         /* Sorted by description */
96         {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
97         {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
98         {0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"},
99         {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
100         {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
101         {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
102         {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
103         {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
104         {0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"},
105         {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
106         {0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"},
107         {0, 0, 0, NULL}
108 };
109
110 DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, NULL, NULL);
111 MODULE_DEPEND(wi, pci, 1, 1, 1);
112 MODULE_DEPEND(wi, wlan, 1, 1, 1);
113
114 static int
115 wi_pci_probe(device_t dev)
116 {
117         struct wi_softc         *sc;
118         int i;
119
120         wlan_serialize_enter();
121         sc = device_get_softc(dev);
122         for(i=0; pci_ids[i].vendor != 0; i++) {
123                 if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
124                         (pci_get_device(dev) == pci_ids[i].device)) {
125                         sc->wi_bus_type = pci_ids[i].bus_type;
126                         device_set_desc(dev, pci_ids[i].desc);
127                         wlan_serialize_exit();
128                         return (BUS_PROBE_DEFAULT);
129                 }
130         }
131         wlan_serialize_exit();
132         return(ENXIO);
133 }
134
135 static int
136 wi_pci_attach(device_t dev)
137 {
138         struct wi_softc         *sc;
139         u_int32_t               command, wanted;
140         u_int16_t               reg;
141         int                     error;
142         int                     timeout;
143
144         wlan_serialize_enter();
145         sc = device_get_softc(dev);
146
147         command = pci_read_config(dev, PCIR_COMMAND, 4);
148         wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN;
149         command |= wanted;
150         pci_write_config(dev, PCIR_COMMAND, command, 4);
151         command = pci_read_config(dev, PCIR_COMMAND, 4);
152         if ((command & wanted) != wanted) {
153                 device_printf(dev, "wi_pci_attach() failed to enable pci!\n");
154                 wlan_serialize_exit();
155                 return (ENXIO);
156         }
157
158         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
159                 error = wi_alloc(dev, WI_PCI_IORES);
160                 if (error) {
161                         wlan_serialize_exit();
162                         return (error);
163                 }
164
165                 /* Make sure interrupts are disabled. */
166                 CSR_WRITE_2(sc, WI_INT_EN, 0);
167                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
168
169                 /* We have to do a magic PLX poke to enable interrupts */
170                 sc->local_rid = WI_PCI_LOCALRES;
171                 sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
172                     &sc->local_rid, RF_ACTIVE);
173                 sc->wi_localtag = rman_get_bustag(sc->local);
174                 sc->wi_localhandle = rman_get_bushandle(sc->local);
175                 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
176                     WI_LOCAL_INTCSR);
177                 command |= WI_LOCAL_INTEN;
178                 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
179                     WI_LOCAL_INTCSR, command);
180                 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
181                     sc->local);
182                 sc->local = NULL;
183
184                 sc->mem_rid = WI_PCI_MEMRES;
185                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
186                                         &sc->mem_rid, RF_ACTIVE);
187                 if (sc->mem == NULL) {
188                         device_printf(dev, "couldn't allocate memory\n");
189                         wi_free(dev);
190                         wlan_serialize_exit();
191                         return (ENXIO);
192                 }
193                 sc->wi_bmemtag = rman_get_bustag(sc->mem);
194                 sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
195
196                 /*
197                  * Write COR to enable PC card
198                  * This is a subset of the protocol that the pccard bus code
199                  * would do.  In theory, we should parse the CIS to find the
200                  * COR offset.  In practice, the COR_OFFSET is always 0x3e0.
201                  */
202                 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE); 
203                 reg = CSM_READ_1(sc, WI_COR_OFFSET);
204                 if (reg != WI_COR_VALUE) {
205                         device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
206                             "wanted %d, got %d\n", WI_COR_VALUE, reg);
207                         wi_free(dev);
208                         wlan_serialize_exit();
209                         return (ENXIO);
210                 }
211         } else {
212                 error = wi_alloc(dev, WI_PCI_LMEMRES);
213                 if (error) {
214                         wlan_serialize_exit();
215                         return (error);
216                 }
217
218                 CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET);
219                 DELAY(250000);
220
221                 CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000);
222                 DELAY(500000);
223
224                 timeout=2000000;
225                 while ((--timeout > 0) &&
226                     (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
227                         DELAY(10);
228
229                 if (timeout == 0) {
230                         device_printf(dev, "couldn't reset prism pci core.\n");
231                         wi_free(dev);
232                         wlan_serialize_exit();
233                         return(ENXIO);
234                 }
235         }
236
237         CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
238         reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
239         if (reg != WI_PRISM2STA_MAGIC) {
240                 device_printf(dev,
241                     "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
242                     "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
243                 wi_free(dev);
244                 wlan_serialize_exit();
245                 return (ENXIO);
246         }
247
248         error = wi_attach(dev);
249         if (error != 0)
250                 wi_free(dev);
251         wlan_serialize_exit();
252         return (error);
253 }
254
255 static int
256 wi_pci_suspend(device_t dev)
257 {
258         struct wi_softc *sc = device_get_softc(dev);
259
260         wlan_serialize_enter();
261         wi_stop(sc, 1);
262         wlan_serialize_exit();
263         
264         return (0);
265 }
266
267 static int
268 wi_pci_resume(device_t dev)
269 {
270         struct wi_softc *sc = device_get_softc(dev);
271         struct ifnet *ifp = sc->sc_ifp;
272
273         wlan_serialize_enter();
274         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
275                 wlan_serialize_exit();
276                 return (0);
277         }
278
279         if (ifp->if_flags & IFF_UP) {
280                 ifp->if_init(ifp->if_softc);
281                 if (ifp->if_flags & IFF_RUNNING)
282                         if_devstart(ifp);
283         }
284         wlan_serialize_exit();
285
286         return (0);
287 }