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[FreeBSD/releng/10.2.git] / sys / dev / ral / if_ral_pci.c
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/module.h>
32 #include <sys/mutex.h>
33 #include <sys/rman.h>
34 #include <sys/socket.h>
35
36 #include <machine/bus.h>
37 #include <machine/resource.h>
38
39 #include <net/ethernet.h>
40 #include <net/if.h>
41 #include <net/if_media.h>
42 #include <net/route.h>
43
44 #include <net80211/ieee80211_var.h>
45 #include <net80211/ieee80211_radiotap.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, 0x539f, "Ralink Technology RT5390" },
102         { 0x1a3b, 0x1059, "AWT RT2890" },
103         { 0, 0, NULL }
104 };
105
106 static const struct ral_opns {
107         int     (*attach)(device_t, int);
108         int     (*detach)(void *);
109         void    (*shutdown)(void *);
110         void    (*suspend)(void *);
111         void    (*resume)(void *);
112         void    (*intr)(void *);
113
114 }  ral_rt2560_opns = {
115         rt2560_attach,
116         rt2560_detach,
117         rt2560_stop,
118         rt2560_stop,
119         rt2560_resume,
120         rt2560_intr
121
122 }, ral_rt2661_opns = {
123         rt2661_attach,
124         rt2661_detach,
125         rt2661_shutdown,
126         rt2661_suspend,
127         rt2661_resume,
128         rt2661_intr
129 }, ral_rt2860_opns = {
130         rt2860_attach,
131         rt2860_detach,
132         rt2860_shutdown,
133         rt2860_suspend,
134         rt2860_resume,
135         rt2860_intr
136 };
137
138 struct ral_pci_softc {
139         union {
140                 struct rt2560_softc sc_rt2560;
141                 struct rt2661_softc sc_rt2661;
142                 struct rt2860_softc sc_rt2860;
143         } u;
144
145         const struct ral_opns   *sc_opns;
146         struct resource         *irq;
147         struct resource         *mem;
148         void                    *sc_ih;
149 };
150
151 static int ral_pci_probe(device_t);
152 static int ral_pci_attach(device_t);
153 static int ral_pci_detach(device_t);
154 static int ral_pci_shutdown(device_t);
155 static int ral_pci_suspend(device_t);
156 static int ral_pci_resume(device_t);
157
158 static device_method_t ral_pci_methods[] = {
159         /* Device interface */
160         DEVMETHOD(device_probe,         ral_pci_probe),
161         DEVMETHOD(device_attach,        ral_pci_attach),
162         DEVMETHOD(device_detach,        ral_pci_detach),
163         DEVMETHOD(device_shutdown,      ral_pci_shutdown),
164         DEVMETHOD(device_suspend,       ral_pci_suspend),
165         DEVMETHOD(device_resume,        ral_pci_resume),
166
167         DEVMETHOD_END
168 };
169
170 static driver_t ral_pci_driver = {
171         "ral",
172         ral_pci_methods,
173         sizeof (struct ral_pci_softc)
174 };
175
176 static devclass_t ral_devclass;
177
178 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, NULL, NULL);
179
180 static int
181 ral_pci_probe(device_t dev)
182 {
183         const struct ral_pci_ident *ident;
184
185         for (ident = ral_pci_ids; ident->name != NULL; ident++) {
186                 if (pci_get_vendor(dev) == ident->vendor &&
187                     pci_get_device(dev) == ident->device) {
188                         device_set_desc(dev, ident->name);
189                         return (BUS_PROBE_DEFAULT);
190                 }
191         }
192         return ENXIO;
193 }
194
195 static int
196 ral_pci_attach(device_t dev)
197 {
198         struct ral_pci_softc *psc = device_get_softc(dev);
199         struct rt2560_softc *sc = &psc->u.sc_rt2560;
200         int count, error, rid;
201
202         pci_enable_busmaster(dev);
203
204         switch (pci_get_device(dev)) {
205         case 0x0201:
206                 psc->sc_opns = &ral_rt2560_opns;
207                 break;
208         case 0x0301:
209         case 0x0302:
210         case 0x0401:
211                 psc->sc_opns = &ral_rt2661_opns;
212                 break;
213         default:
214                 psc->sc_opns = &ral_rt2860_opns;
215                 break;
216         }
217
218         rid = PCIR_BAR(0);
219         psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
220             RF_ACTIVE);
221         if (psc->mem == NULL) {
222                 device_printf(dev, "could not allocate memory resource\n");
223                 return ENXIO;
224         }
225
226         sc->sc_st = rman_get_bustag(psc->mem);
227         sc->sc_sh = rman_get_bushandle(psc->mem);
228         sc->sc_invalid = 1;
229         
230         rid = 0;
231         if (ral_msi_disable == 0) {
232                 count = 1;
233                 if (pci_alloc_msi(dev, &count) == 0)
234                         rid = 1;
235         }
236         psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
237             (rid != 0 ? 0 : RF_SHAREABLE));
238         if (psc->irq == NULL) {
239                 device_printf(dev, "could not allocate interrupt resource\n");
240                 pci_release_msi(dev);
241                 bus_release_resource(dev, SYS_RES_MEMORY,
242                     rman_get_rid(psc->mem), psc->mem);
243                 return ENXIO;
244         }
245
246         error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
247         if (error != 0) {
248                 (void)ral_pci_detach(dev);
249                 return error;
250         }
251
252         /*
253          * Hook our interrupt after all initialization is complete.
254          */
255         error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
256             NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
257         if (error != 0) {
258                 device_printf(dev, "could not set up interrupt\n");
259                 (void)ral_pci_detach(dev);
260                 return error;
261         }
262         sc->sc_invalid = 0;
263         
264         return 0;
265 }
266
267 static int
268 ral_pci_detach(device_t dev)
269 {
270         struct ral_pci_softc *psc = device_get_softc(dev);
271         struct rt2560_softc *sc = &psc->u.sc_rt2560;
272         
273         /* check if device was removed */
274         sc->sc_invalid = !bus_child_present(dev);
275
276         if (psc->sc_ih != NULL)
277                 bus_teardown_intr(dev, psc->irq, psc->sc_ih);
278         (*psc->sc_opns->detach)(psc);
279
280         bus_generic_detach(dev);
281         bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(psc->irq),
282             psc->irq);
283         pci_release_msi(dev);
284
285         bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(psc->mem),
286             psc->mem);
287
288         return 0;
289 }
290
291 static int
292 ral_pci_shutdown(device_t dev)
293 {
294         struct ral_pci_softc *psc = device_get_softc(dev);
295
296         (*psc->sc_opns->shutdown)(psc);
297
298         return 0;
299 }
300
301 static int
302 ral_pci_suspend(device_t dev)
303 {
304         struct ral_pci_softc *psc = device_get_softc(dev);
305
306         (*psc->sc_opns->suspend)(psc);
307
308         return 0;
309 }
310
311 static int
312 ral_pci_resume(device_t dev)
313 {
314         struct ral_pci_softc *psc = device_get_softc(dev);
315
316         (*psc->sc_opns->resume)(psc);
317
318         return 0;
319 }