1 /*-
2 * Copyright (c) 2005, 2006
3 * Damien Bergamini <damien.bergamini@free.fr>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/cdefs.h>
19 /*
20 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
21 */
22
23 #include <sys/param.h>
24 #include <sys/systm.h>
25 #include <sys/bus.h>
26 #include <sys/kernel.h>
27 #include <sys/lock.h>
28 #include <sys/malloc.h>
29 #include <sys/mbuf.h>
30 #include <sys/module.h>
31 #include <sys/mutex.h>
32 #include <sys/rman.h>
33 #include <sys/socket.h>
34
35 #include <machine/bus.h>
36 #include <machine/resource.h>
37
38 #include <net/ethernet.h>
39 #include <net/if.h>
40 #include <net/if_media.h>
41 #include <net/route.h>
42
43 #include <net80211/ieee80211_var.h>
44 #include <net80211/ieee80211_radiotap.h>
45 #include <net80211/ieee80211_ratectl.h>
46
47 #include <dev/pci/pcireg.h>
48 #include <dev/pci/pcivar.h>
49
50 #include <dev/ral/rt2560var.h>
51 #include <dev/ral/rt2661var.h>
52 #include <dev/ral/rt2860var.h>
53
54 MODULE_DEPEND(ral, pci, 1, 1, 1);
55 MODULE_DEPEND(ral, firmware, 1, 1, 1);
56 MODULE_DEPEND(ral, wlan, 1, 1, 1);
57 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
58
59 static int ral_msi_disable;
60 TUNABLE_INT("hw.ral.msi_disable", &ral_msi_disable);
61
62 struct ral_pci_ident {
63 uint16_t vendor;
64 uint16_t device;
65 const char *name;
66 };
67
68 static const struct ral_pci_ident ral_pci_ids[] = {
69 { 0x1432, 0x7708, "Edimax RT2860" },
70 { 0x1432, 0x7711, "Edimax RT3591" },
71 { 0x1432, 0x7722, "Edimax RT3591" },
72 { 0x1432, 0x7727, "Edimax RT2860" },
73 { 0x1432, 0x7728, "Edimax RT2860" },
74 { 0x1432, 0x7738, "Edimax RT2860" },
75 { 0x1432, 0x7748, "Edimax RT2860" },
76 { 0x1432, 0x7758, "Edimax RT2860" },
77 { 0x1432, 0x7768, "Edimax RT2860" },
78 { 0x1462, 0x891a, "MSI RT3090" },
79 { 0x1814, 0x0201, "Ralink Technology RT2560" },
80 { 0x1814, 0x0301, "Ralink Technology RT2561S" },
81 { 0x1814, 0x0302, "Ralink Technology RT2561" },
82 { 0x1814, 0x0401, "Ralink Technology RT2661" },
83 { 0x1814, 0x0601, "Ralink Technology RT2860" },
84 { 0x1814, 0x0681, "Ralink Technology RT2890" },
85 { 0x1814, 0x0701, "Ralink Technology RT2760" },
86 { 0x1814, 0x0781, "Ralink Technology RT2790" },
87 { 0x1814, 0x3060, "Ralink Technology RT3060" },
88 { 0x1814, 0x3062, "Ralink Technology RT3062" },
89 { 0x1814, 0x3090, "Ralink Technology RT3090" },
90 { 0x1814, 0x3091, "Ralink Technology RT3091" },
91 { 0x1814, 0x3092, "Ralink Technology RT3092" },
92 { 0x1814, 0x3390, "Ralink Technology RT3390" },
93 { 0x1814, 0x3562, "Ralink Technology RT3562" },
94 { 0x1814, 0x3592, "Ralink Technology RT3592" },
95 { 0x1814, 0x3593, "Ralink Technology RT3593" },
96 { 0x1814, 0x5360, "Ralink Technology RT5390" },
97 { 0x1814, 0x5362, "Ralink Technology RT5392" },
98 { 0x1814, 0x5390, "Ralink Technology RT5390" },
99 { 0x1814, 0x5392, "Ralink Technology RT5392" },
100 { 0x1814, 0x539a, "Ralink Technology RT5390" },
101 { 0x1814, 0x539b, "Ralink Technology RT5390" },
102 { 0x1814, 0x539f, "Ralink Technology RT5390" },
103 { 0x1a3b, 0x1059, "AWT RT2890" },
104 { 0, 0, NULL }
105 };
106
107 static const struct ral_opns {
108 int (*attach)(device_t, int);
109 int (*detach)(void *);
110 void (*shutdown)(void *);
111 void (*suspend)(void *);
112 void (*resume)(void *);
113 void (*intr)(void *);
114
115 } ral_rt2560_opns = {
116 rt2560_attach,
117 rt2560_detach,
118 rt2560_stop,
119 rt2560_stop,
120 rt2560_resume,
121 rt2560_intr
122
123 }, ral_rt2661_opns = {
124 rt2661_attach,
125 rt2661_detach,
126 rt2661_shutdown,
127 rt2661_suspend,
128 rt2661_resume,
129 rt2661_intr
130 }, ral_rt2860_opns = {
131 rt2860_attach,
132 rt2860_detach,
133 rt2860_shutdown,
134 rt2860_suspend,
135 rt2860_resume,
136 rt2860_intr
137 };
138
139 struct ral_pci_softc {
140 union {
141 struct rt2560_softc sc_rt2560;
142 struct rt2661_softc sc_rt2661;
143 struct rt2860_softc sc_rt2860;
144 } u;
145
146 const struct ral_opns *sc_opns;
147 struct resource *irq;
148 struct resource *mem;
149 void *sc_ih;
150 };
151
152 static int ral_pci_probe(device_t);
153 static int ral_pci_attach(device_t);
154 static int ral_pci_detach(device_t);
155 static int ral_pci_shutdown(device_t);
156 static int ral_pci_suspend(device_t);
157 static int ral_pci_resume(device_t);
158
159 static device_method_t ral_pci_methods[] = {
160 /* Device interface */
161 DEVMETHOD(device_probe, ral_pci_probe),
162 DEVMETHOD(device_attach, ral_pci_attach),
163 DEVMETHOD(device_detach, ral_pci_detach),
164 DEVMETHOD(device_shutdown, ral_pci_shutdown),
165 DEVMETHOD(device_suspend, ral_pci_suspend),
166 DEVMETHOD(device_resume, ral_pci_resume),
167
168 DEVMETHOD_END
169 };
170
171 static driver_t ral_pci_driver = {
172 "ral",
173 ral_pci_methods,
174 sizeof (struct ral_pci_softc)
175 };
176
177 DRIVER_MODULE(ral, pci, ral_pci_driver, NULL, NULL);
178 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, ral, ral_pci_ids,
179 nitems(ral_pci_ids) - 1);
180
181 static int
ral_pci_probe(device_t dev)182 ral_pci_probe(device_t dev)
183 {
184 const struct ral_pci_ident *ident;
185
186 for (ident = ral_pci_ids; ident->name != NULL; ident++) {
187 if (pci_get_vendor(dev) == ident->vendor &&
188 pci_get_device(dev) == ident->device) {
189 device_set_desc(dev, ident->name);
190 return (BUS_PROBE_DEFAULT);
191 }
192 }
193 return ENXIO;
194 }
195
196 static int
ral_pci_attach(device_t dev)197 ral_pci_attach(device_t dev)
198 {
199 struct ral_pci_softc *psc = device_get_softc(dev);
200 struct rt2560_softc *sc = &psc->u.sc_rt2560;
201 int count, error, rid;
202
203 pci_enable_busmaster(dev);
204
205 switch (pci_get_device(dev)) {
206 case 0x0201:
207 psc->sc_opns = &ral_rt2560_opns;
208 break;
209 case 0x0301:
210 case 0x0302:
211 case 0x0401:
212 psc->sc_opns = &ral_rt2661_opns;
213 break;
214 default:
215 psc->sc_opns = &ral_rt2860_opns;
216 break;
217 }
218
219 rid = PCIR_BAR(0);
220 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
221 RF_ACTIVE);
222 if (psc->mem == NULL) {
223 device_printf(dev, "could not allocate memory resource\n");
224 return ENXIO;
225 }
226
227 sc->sc_st = rman_get_bustag(psc->mem);
228 sc->sc_sh = rman_get_bushandle(psc->mem);
229 sc->sc_invalid = 1;
230
231 rid = 0;
232 if (ral_msi_disable == 0) {
233 count = 1;
234 if (pci_alloc_msi(dev, &count) == 0)
235 rid = 1;
236 }
237 psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
238 (rid != 0 ? 0 : RF_SHAREABLE));
239 if (psc->irq == NULL) {
240 device_printf(dev, "could not allocate interrupt resource\n");
241 pci_release_msi(dev);
242 bus_release_resource(dev, SYS_RES_MEMORY,
243 rman_get_rid(psc->mem), psc->mem);
244 return ENXIO;
245 }
246
247 error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
248 if (error != 0) {
249 (void)ral_pci_detach(dev);
250 return error;
251 }
252
253 /*
254 * Hook our interrupt after all initialization is complete.
255 */
256 error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
257 NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
258 if (error != 0) {
259 device_printf(dev, "could not set up interrupt\n");
260 (void)ral_pci_detach(dev);
261 return error;
262 }
263 sc->sc_invalid = 0;
264
265 return 0;
266 }
267
268 static int
ral_pci_detach(device_t dev)269 ral_pci_detach(device_t dev)
270 {
271 struct ral_pci_softc *psc = device_get_softc(dev);
272 struct rt2560_softc *sc = &psc->u.sc_rt2560;
273
274 /* check if device was removed */
275 sc->sc_invalid = !bus_child_present(dev);
276
277 if (psc->sc_ih != NULL)
278 bus_teardown_intr(dev, psc->irq, psc->sc_ih);
279 (*psc->sc_opns->detach)(psc);
280
281 bus_generic_detach(dev);
282 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(psc->irq),
283 psc->irq);
284 pci_release_msi(dev);
285
286 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(psc->mem),
287 psc->mem);
288
289 return 0;
290 }
291
292 static int
ral_pci_shutdown(device_t dev)293 ral_pci_shutdown(device_t dev)
294 {
295 struct ral_pci_softc *psc = device_get_softc(dev);
296
297 (*psc->sc_opns->shutdown)(psc);
298
299 return 0;
300 }
301
302 static int
ral_pci_suspend(device_t dev)303 ral_pci_suspend(device_t dev)
304 {
305 struct ral_pci_softc *psc = device_get_softc(dev);
306
307 (*psc->sc_opns->suspend)(psc);
308
309 return 0;
310 }
311
312 static int
ral_pci_resume(device_t dev)313 ral_pci_resume(device_t dev)
314 {
315 struct ral_pci_softc *psc = device_get_softc(dev);
316
317 (*psc->sc_opns->resume)(psc);
318
319 return 0;
320 }
321