Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / dev / netif / wi / if_wi_pci.c
CommitLineData
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MD
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: src/sys/dev/wi/if_wi_pci.c,v 1.8.2.3 2002/06/16 18:07:18 nsayer Exp $
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
50#include <machine/bus.h>
51#include <machine/resource.h>
52#include <machine/clock.h>
53#include <sys/rman.h>
54
55#include <pci/pcireg.h>
56#include <pci/pcivar.h>
57
58#include <net/if.h>
59#include <net/if_arp.h>
60#include <net/ethernet.h>
61#include <net/if_media.h>
62#include <net/if_types.h>
63#include <net/if_ieee80211.h>
64
65#include <dev/wi/if_wavelan_ieee.h>
66#include <dev/wi/wi_hostap.h>
67#include <dev/wi/if_wivar.h>
68#include <dev/wi/if_wireg.h>
69
70static int wi_pci_probe(device_t);
71static int wi_pci_attach(device_t);
72
73static device_method_t wi_pci_methods[] = {
74 /* Device interface */
75 DEVMETHOD(device_probe, wi_pci_probe),
76 DEVMETHOD(device_attach, wi_pci_attach),
77 DEVMETHOD(device_detach, wi_generic_detach),
78 DEVMETHOD(device_shutdown, wi_shutdown),
79
80 { 0, 0 }
81};
82
83static driver_t wi_pci_driver = {
84 "wi",
85 wi_pci_methods,
86 sizeof(struct wi_softc)
87};
88
89static struct {
90 unsigned int vendor,device;
91 int bus_type;
92 char *desc;
93} pci_ids[] = {
94 /* Sorted by description */
95 {0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
96 {0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
97 {0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
98 {0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
99 {0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
100 {0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
101 {0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
102 {0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
103 {0, 0, 0, NULL}
104};
105
106DRIVER_MODULE(if_wi, pci, wi_pci_driver, wi_devclass, 0, 0);
107
108static int
109wi_pci_probe(dev)
110 device_t dev;
111{
112 struct wi_softc *sc;
113 int i;
114
115 sc = device_get_softc(dev);
116 for(i=0; pci_ids[i].vendor != 0; i++) {
117 if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
118 (pci_get_device(dev) == pci_ids[i].device)) {
119 sc->wi_bus_type = pci_ids[i].bus_type;
120 device_set_desc(dev, pci_ids[i].desc);
121 return (0);
122 }
123 }
124 return(ENXIO);
125}
126
127static int
128wi_pci_attach(device_t dev)
129{
130 struct wi_softc *sc;
131 u_int32_t command, wanted;
132 u_int16_t reg;
133 int error;
134 int timeout;
135
136 sc = device_get_softc(dev);
137
138 command = pci_read_config(dev, PCIR_COMMAND, 4);
139 wanted = PCIM_CMD_PORTEN|PCIM_CMD_MEMEN;
140 command |= wanted;
141 pci_write_config(dev, PCIR_COMMAND, command, 4);
142 command = pci_read_config(dev, PCIR_COMMAND, 4);
143 if ((command & wanted) != wanted) {
144 device_printf(dev, "wi_pci_attach() failed to enable pci!\n");
145 return (ENXIO);
146 }
147
148 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
149 error = wi_alloc(dev, WI_PCI_IORES);
150 if (error)
151 return (error);
152
153 /* Make sure interrupts are disabled. */
154 CSR_WRITE_2(sc, WI_INT_EN, 0);
155 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
156
157 /* We have to do a magic PLX poke to enable interrupts */
158 sc->local_rid = WI_PCI_LOCALRES;
159 sc->local = bus_alloc_resource(dev, SYS_RES_IOPORT,
160 &sc->local_rid, 0, ~0, 1, RF_ACTIVE);
161 sc->wi_localtag = rman_get_bustag(sc->local);
162 sc->wi_localhandle = rman_get_bushandle(sc->local);
163 command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
164 WI_LOCAL_INTCSR);
165 command |= WI_LOCAL_INTEN;
166 bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
167 WI_LOCAL_INTCSR, command);
168 bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
169 sc->local);
170 sc->local = NULL;
171
172 sc->mem_rid = WI_PCI_MEMRES;
173 sc->mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
174 0, ~0, 1, RF_ACTIVE);
175 if (sc->mem == NULL) {
176 device_printf(dev, "couldn't allocate memory\n");
177 wi_free(dev);
178 return (ENXIO);
179 }
180 sc->wi_bmemtag = rman_get_bustag(sc->mem);
181 sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
182
183 /*
184 * From Linux driver:
185 * Write COR to enable PC card
186 * This is a subset of the protocol that the pccard bus code
187 * would do.
188 */
189 CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE);
190 reg = CSM_READ_1(sc, WI_COR_OFFSET);
191 if (reg != WI_COR_VALUE) {
192 device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
193 "wanted %d, got %d\n", WI_COR_VALUE, reg);
194 wi_free(dev);
195 return (ENXIO);
196 }
197 } else {
198 error = wi_alloc(dev, WI_PCI_LMEMRES);
199 if (error)
200 return (error);
201
202 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0080);
203 DELAY(250000);
204
205 CSR_WRITE_2(sc, WI_HFA384X_PCICOR_OFF, 0x0000);
206 DELAY(500000);
207
208 timeout=2000000;
209 while ((--timeout > 0) &&
210 (CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
211 DELAY(10);
212
213 if (timeout == 0) {
214 device_printf(dev, "couldn't reset prism2.5 core.\n");
215 wi_free(dev);
216 return(ENXIO);
217 }
218 }
219
220 CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
221 reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
222 if (reg != WI_PRISM2STA_MAGIC) {
223 device_printf(dev,
224 "CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
225 "wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
226 wi_free(dev);
227 return (ENXIO);
228 }
229
230 error = wi_generic_attach(dev);
231 if (error != 0)
232 return (error);
233
234 return (0);
235}