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 __FBSDID("$FreeBSD$");
20
21 /*
22 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
23 */
24
25 #include <sys/param.h>
26 #include <sys/systm.h>
27 #include <sys/bus.h>
28 #include <sys/kernel.h>
29 #include <sys/lock.h>
30 #include <sys/malloc.h>
31 #include <sys/mbuf.h>
32 #include <sys/module.h>
33 #include <sys/rman.h>
34 #include <sys/socket.h>
35
36 #if defined(__DragonFly__)
37 /* empty */
38 #else
39 #include <machine/bus.h>
40 #include <machine/resource.h>
41 #endif
42
43 #include <net/ethernet.h>
44 #include <net/if.h>
45 #include <net/if_var.h>
46 #include <net/if_media.h>
47 #include <net/route.h>
48
49 #include <netproto/802_11/ieee80211_var.h>
50 #include <netproto/802_11/ieee80211_radiotap.h>
51
52 #include <bus/pci/pcireg.h>
53 #include <bus/pci/pcivar.h>
54
55 #include <dev/netif/ral/rt2560var.h>
56 #include <dev/netif/ral/rt2661var.h>
57 #include <dev/netif/ral/rt2860var.h>
58
59 MODULE_DEPEND(ral, pci, 1, 1, 1);
60 MODULE_DEPEND(ral, firmware, 1, 1, 1);
61 MODULE_DEPEND(ral, wlan, 1, 1, 1);
62 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
63
64 static int ral_msi_disable;
65 TUNABLE_INT("hw.ral.msi_disable", &ral_msi_disable);
66
67 struct ral_pci_ident {
68 uint16_t vendor;
69 uint16_t device;
70 const char *name;
71 };
72
73 static const struct ral_pci_ident ral_pci_ids[] = {
74 { 0x1432, 0x7708, "Edimax RT2860" },
75 { 0x1432, 0x7711, "Edimax RT3591" },
76 { 0x1432, 0x7722, "Edimax RT3591" },
77 { 0x1432, 0x7727, "Edimax RT2860" },
78 { 0x1432, 0x7728, "Edimax RT2860" },
79 { 0x1432, 0x7738, "Edimax RT2860" },
80 { 0x1432, 0x7748, "Edimax RT2860" },
81 { 0x1432, 0x7758, "Edimax RT2860" },
82 { 0x1432, 0x7768, "Edimax RT2860" },
83 { 0x1462, 0x891a, "MSI RT3090" },
84 { 0x1814, 0x0201, "Ralink Technology RT2560" },
85 { 0x1814, 0x0301, "Ralink Technology RT2561S" },
86 { 0x1814, 0x0302, "Ralink Technology RT2561" },
87 { 0x1814, 0x0401, "Ralink Technology RT2661" },
88 { 0x1814, 0x0601, "Ralink Technology RT2860" },
89 { 0x1814, 0x0681, "Ralink Technology RT2890" },
90 { 0x1814, 0x0701, "Ralink Technology RT2760" },
91 { 0x1814, 0x0781, "Ralink Technology RT2790" },
92 { 0x1814, 0x3060, "Ralink Technology RT3060" },
93 { 0x1814, 0x3062, "Ralink Technology RT3062" },
94 { 0x1814, 0x3090, "Ralink Technology RT3090" },
95 { 0x1814, 0x3091, "Ralink Technology RT3091" },
96 { 0x1814, 0x3092, "Ralink Technology RT3092" },
97 { 0x1814, 0x3390, "Ralink Technology RT3390" },
98 { 0x1814, 0x3562, "Ralink Technology RT3562" },
99 { 0x1814, 0x3592, "Ralink Technology RT3592" },
100 { 0x1814, 0x3593, "Ralink Technology RT3593" },
101 { 0x1814, 0x5360, "Ralink Technology RT5390" },
102 { 0x1814, 0x5362, "Ralink Technology RT5392" },
103 { 0x1814, 0x5390, "Ralink Technology RT5390" },
104 { 0x1814, 0x5392, "Ralink Technology RT5392" },
105 { 0x1814, 0x539a, "Ralink Technology RT5390" },
106 { 0x1814, 0x539f, "Ralink Technology RT5390" },
107 { 0x1a3b, 0x1059, "AWT RT2890" },
108 { 0, 0, NULL }
109 };
110
111 static const struct ral_opns {
112 int (*attach)(device_t, int);
113 int (*detach)(void *);
114 void (*shutdown)(void *);
115 void (*suspend)(void *);
116 void (*resume)(void *);
117 void (*intr)(void *);
118
119 } ral_rt2560_opns = {
120 rt2560_attach,
121 rt2560_detach,
122 rt2560_stop,
123 rt2560_stop,
124 rt2560_resume,
125 rt2560_intr
126
127 }, ral_rt2661_opns = {
128 rt2661_attach,
129 rt2661_detach,
130 rt2661_shutdown,
131 rt2661_suspend,
132 rt2661_resume,
133 rt2661_intr
134 }, ral_rt2860_opns = {
135 rt2860_attach,
136 rt2860_detach,
137 rt2860_shutdown,
138 rt2860_suspend,
139 rt2860_resume,
140 rt2860_intr
141 };
142
143 struct ral_pci_softc {
144 union {
145 struct rt2560_softc sc_rt2560;
146 struct rt2661_softc sc_rt2661;
147 struct rt2860_softc sc_rt2860;
148 } u;
149
150 const struct ral_opns *sc_opns;
151 struct resource *irq;
152 struct resource *mem;
153 void *sc_ih;
154 int sc_irq_type;
155 };
156
157 static int ral_pci_probe(device_t);
158 static int ral_pci_attach(device_t);
159 static int ral_pci_detach(device_t);
160 static int ral_pci_shutdown(device_t);
161 static int ral_pci_suspend(device_t);
162 static int ral_pci_resume(device_t);
163
164 static device_method_t ral_pci_methods[] = {
165 /* Device interface */
166 DEVMETHOD(device_probe, ral_pci_probe),
167 DEVMETHOD(device_attach, ral_pci_attach),
168 DEVMETHOD(device_detach, ral_pci_detach),
169 DEVMETHOD(device_shutdown, ral_pci_shutdown),
170 DEVMETHOD(device_suspend, ral_pci_suspend),
171 DEVMETHOD(device_resume, ral_pci_resume),
172
173 DEVMETHOD_END
174 };
175
176 static driver_t ral_pci_driver = {
177 "ral",
178 ral_pci_methods,
179 sizeof (struct ral_pci_softc)
180 };
181
182 static devclass_t ral_devclass;
183
184 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, NULL, NULL);
185
186 static int
ral_pci_probe(device_t dev)187 ral_pci_probe(device_t dev)
188 {
189 const struct ral_pci_ident *ident;
190
191 for (ident = ral_pci_ids; ident->name != NULL; ident++) {
192 if (pci_get_vendor(dev) == ident->vendor &&
193 pci_get_device(dev) == ident->device) {
194 device_set_desc(dev, ident->name);
195 return (BUS_PROBE_DEFAULT);
196 }
197 }
198 return ENXIO;
199 }
200
201 static int
ral_pci_attach(device_t dev)202 ral_pci_attach(device_t dev)
203 {
204 struct ral_pci_softc *psc = device_get_softc(dev);
205 struct rt2560_softc *sc = &psc->u.sc_rt2560;
206 #if defined(__DragonFly__)
207 int error, rid;
208 #else
209 int count, error, rid;
210 #endif
211 #if defined(__DragonFly__)
212 int irq_flags;
213 #endif
214
215 #if defined(__DragonFly__)
216 /* still needed? XXX */
217 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
218 device_printf(dev, "chip is in D%d power mode "
219 "-- setting to D0\n", pci_get_powerstate(dev));
220 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
221 }
222 #endif
223
224 pci_enable_busmaster(dev);
225
226 switch (pci_get_device(dev)) {
227 case 0x0201:
228 psc->sc_opns = &ral_rt2560_opns;
229 break;
230 case 0x0301:
231 case 0x0302:
232 case 0x0401:
233 psc->sc_opns = &ral_rt2661_opns;
234 break;
235 default:
236 psc->sc_opns = &ral_rt2860_opns;
237 break;
238 }
239
240 rid = PCIR_BAR(0);
241 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
242 RF_ACTIVE);
243 if (psc->mem == NULL) {
244 device_printf(dev, "could not allocate memory resource\n");
245 return ENXIO;
246 }
247
248 sc->sc_st = rman_get_bustag(psc->mem);
249 sc->sc_sh = rman_get_bushandle(psc->mem);
250 sc->sc_invalid = 1;
251
252 #if defined(__DragonFly__)
253 psc->sc_irq_type = pci_alloc_1intr(dev, ~ral_msi_disable,
254 &rid, &irq_flags);
255 psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, irq_flags);
256 #else
257 rid = 0;
258 if (ral_msi_disable == 0) {
259 count = 1;
260 if (pci_alloc_msi(dev, &count) == 0)
261 rid = 1;
262 }
263 psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
264 (rid != 0 ? 0 : RF_SHAREABLE));
265 #endif
266 if (psc->irq == NULL) {
267 device_printf(dev, "could not allocate interrupt resource\n");
268 pci_release_msi(dev);
269 bus_release_resource(dev, SYS_RES_MEMORY,
270 rman_get_rid(psc->mem), psc->mem);
271 return ENXIO;
272 }
273
274 error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
275 if (error != 0) {
276 (void)ral_pci_detach(dev);
277 return error;
278 }
279
280 /*
281 * Hook our interrupt after all initialization is complete.
282 */
283 #if defined(__DragonFly__)
284 error = bus_setup_intr(dev, psc->irq, INTR_MPSAFE,
285 psc->sc_opns->intr, psc, &psc->sc_ih, &wlan_global_serializer);
286 #else
287 error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
288 NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
289 #endif
290 if (error != 0) {
291 device_printf(dev, "could not set up interrupt\n");
292 (void)ral_pci_detach(dev);
293 return error;
294 }
295 sc->sc_invalid = 0;
296
297 return 0;
298 }
299
300 static int
ral_pci_detach(device_t dev)301 ral_pci_detach(device_t dev)
302 {
303 struct ral_pci_softc *psc = device_get_softc(dev);
304 struct rt2560_softc *sc = &psc->u.sc_rt2560;
305
306 /* check if device was removed */
307 sc->sc_invalid = !bus_child_present(dev);
308
309 if (psc->sc_ih != NULL)
310 bus_teardown_intr(dev, psc->irq, psc->sc_ih);
311 (*psc->sc_opns->detach)(psc);
312
313 bus_generic_detach(dev);
314
315 #if defined(__DragonFly__)
316 if (psc->sc_irq_type == PCI_INTR_TYPE_MSI)
317 pci_release_msi(dev);
318 #endif
319 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(psc->irq),
320 psc->irq);
321 pci_release_msi(dev);
322
323 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(psc->mem),
324 psc->mem);
325
326 return 0;
327 }
328
329 static int
ral_pci_shutdown(device_t dev)330 ral_pci_shutdown(device_t dev)
331 {
332 struct ral_pci_softc *psc = device_get_softc(dev);
333
334 (*psc->sc_opns->shutdown)(psc);
335
336 return 0;
337 }
338
339 static int
ral_pci_suspend(device_t dev)340 ral_pci_suspend(device_t dev)
341 {
342 struct ral_pci_softc *psc = device_get_softc(dev);
343
344 (*psc->sc_opns->suspend)(psc);
345
346 return 0;
347 }
348
349 static int
ral_pci_resume(device_t dev)350 ral_pci_resume(device_t dev)
351 {
352 struct ral_pci_softc *psc = device_get_softc(dev);
353
354 (*psc->sc_opns->resume)(psc);
355
356 return 0;
357 }
358