1/*-
2 * Copyright (c) 2004-2006
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 * Copyright (c) 2006 Sam Leffler, Errno Consulting
5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
12 * disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2004-2006
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 * Copyright (c) 2006 Sam Leffler, Errno Consulting
5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
12 * disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
|
31__FBSDID("$FreeBSD: head/sys/dev/ipw/if_ipw.c 260444 2014-01-08 08:06:56Z kevlo $");
| 31__FBSDID("$FreeBSD: head/sys/dev/ipw/if_ipw.c 271849 2014-09-19 03:51:26Z glebius $");
|
32
33/*-
34 * Intel(R) PRO/Wireless 2100 MiniPCI driver
35 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
36 */
37
38#include <sys/param.h>
39#include <sys/sysctl.h>
40#include <sys/sockio.h>
41#include <sys/mbuf.h>
42#include <sys/kernel.h>
43#include <sys/socket.h>
44#include <sys/systm.h>
45#include <sys/malloc.h>
46#include <sys/queue.h>
47#include <sys/taskqueue.h>
48#include <sys/module.h>
49#include <sys/bus.h>
50#include <sys/endian.h>
51#include <sys/linker.h>
52#include <sys/firmware.h>
53
54#include <machine/bus.h>
55#include <machine/resource.h>
56#include <sys/rman.h>
57
58#include <dev/pci/pcireg.h>
59#include <dev/pci/pcivar.h>
60
61#include <net/bpf.h>
62#include <net/if.h>
63#include <net/if_var.h>
64#include <net/if_arp.h>
65#include <net/ethernet.h>
66#include <net/if_dl.h>
67#include <net/if_media.h>
68#include <net/if_types.h>
69
70#include <net80211/ieee80211_var.h>
71#include <net80211/ieee80211_radiotap.h>
72
73#include <netinet/in.h>
74#include <netinet/in_systm.h>
75#include <netinet/in_var.h>
76#include <netinet/ip.h>
77#include <netinet/if_ether.h>
78
79#include <dev/ipw/if_ipwreg.h>
80#include <dev/ipw/if_ipwvar.h>
81
82#define IPW_DEBUG
83#ifdef IPW_DEBUG
84#define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0)
85#define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0)
86int ipw_debug = 0;
87SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level");
88#else
89#define DPRINTF(x)
90#define DPRINTFN(n, x)
91#endif
92
93MODULE_DEPEND(ipw, pci, 1, 1, 1);
94MODULE_DEPEND(ipw, wlan, 1, 1, 1);
95MODULE_DEPEND(ipw, firmware, 1, 1, 1);
96
97struct ipw_ident {
98 uint16_t vendor;
99 uint16_t device;
100 const char *name;
101};
102
103static const struct ipw_ident ipw_ident_table[] = {
104 { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" },
105
106 { 0, 0, NULL }
107};
108
109static struct ieee80211vap *ipw_vap_create(struct ieee80211com *,
110 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
111 const uint8_t [IEEE80211_ADDR_LEN],
112 const uint8_t [IEEE80211_ADDR_LEN]);
113static void ipw_vap_delete(struct ieee80211vap *);
114static int ipw_dma_alloc(struct ipw_softc *);
115static void ipw_release(struct ipw_softc *);
116static void ipw_media_status(struct ifnet *, struct ifmediareq *);
117static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int);
118static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t);
119static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
120static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
121static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
122 struct ipw_soft_bd *, struct ipw_soft_buf *);
123static void ipw_rx_intr(struct ipw_softc *);
124static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
125static void ipw_tx_intr(struct ipw_softc *);
126static void ipw_intr(void *);
127static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
128static const char * ipw_cmdname(int);
129static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
130static int ipw_tx_start(struct ifnet *, struct mbuf *,
131 struct ieee80211_node *);
132static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
133 const struct ieee80211_bpf_params *);
134static void ipw_start(struct ifnet *);
135static void ipw_start_locked(struct ifnet *);
136static void ipw_watchdog(void *);
137static int ipw_ioctl(struct ifnet *, u_long, caddr_t);
138static void ipw_stop_master(struct ipw_softc *);
139static int ipw_enable(struct ipw_softc *);
140static int ipw_disable(struct ipw_softc *);
141static int ipw_reset(struct ipw_softc *);
142static int ipw_load_ucode(struct ipw_softc *, const char *, int);
143static int ipw_load_firmware(struct ipw_softc *, const char *, int);
144static int ipw_config(struct ipw_softc *);
145static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
146static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
147static void ipw_init_task(void *, int);
148static void ipw_init(void *);
149static void ipw_init_locked(struct ipw_softc *);
150static void ipw_stop(void *);
151static void ipw_stop_locked(struct ipw_softc *);
152static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
153static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
154static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
155static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
156#if 0
157static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
158 uint32_t *);
159static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
160 bus_size_t);
161#endif
162static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
163 const uint8_t *, bus_size_t);
164static int ipw_scan(struct ipw_softc *);
165static void ipw_scan_start(struct ieee80211com *);
166static void ipw_scan_end(struct ieee80211com *);
167static void ipw_set_channel(struct ieee80211com *);
168static void ipw_scan_curchan(struct ieee80211_scan_state *,
169 unsigned long maxdwell);
170static void ipw_scan_mindwell(struct ieee80211_scan_state *);
171
172static int ipw_probe(device_t);
173static int ipw_attach(device_t);
174static int ipw_detach(device_t);
175static int ipw_shutdown(device_t);
176static int ipw_suspend(device_t);
177static int ipw_resume(device_t);
178
179static device_method_t ipw_methods[] = {
180 /* Device interface */
181 DEVMETHOD(device_probe, ipw_probe),
182 DEVMETHOD(device_attach, ipw_attach),
183 DEVMETHOD(device_detach, ipw_detach),
184 DEVMETHOD(device_shutdown, ipw_shutdown),
185 DEVMETHOD(device_suspend, ipw_suspend),
186 DEVMETHOD(device_resume, ipw_resume),
187
188 DEVMETHOD_END
189};
190
191static driver_t ipw_driver = {
192 "ipw",
193 ipw_methods,
194 sizeof (struct ipw_softc)
195};
196
197static devclass_t ipw_devclass;
198
199DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, NULL, NULL);
200
201MODULE_VERSION(ipw, 1);
202
203static int
204ipw_probe(device_t dev)
205{
206 const struct ipw_ident *ident;
207
208 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
209 if (pci_get_vendor(dev) == ident->vendor &&
210 pci_get_device(dev) == ident->device) {
211 device_set_desc(dev, ident->name);
212 return (BUS_PROBE_DEFAULT);
213 }
214 }
215 return ENXIO;
216}
217
218/* Base Address Register */
219static int
220ipw_attach(device_t dev)
221{
222 struct ipw_softc *sc = device_get_softc(dev);
223 struct ifnet *ifp;
224 struct ieee80211com *ic;
225 struct ieee80211_channel *c;
226 uint16_t val;
227 int error, i;
228 uint8_t macaddr[IEEE80211_ADDR_LEN];
229
230 sc->sc_dev = dev;
231
232 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
233 MTX_DEF | MTX_RECURSE);
234
235 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
236 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
237
238 pci_write_config(dev, 0x41, 0, 1);
239
240 /* enable bus-mastering */
241 pci_enable_busmaster(dev);
242
243 i = PCIR_BAR(0);
244 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE);
245 if (sc->mem == NULL) {
246 device_printf(dev, "could not allocate memory resource\n");
247 goto fail;
248 }
249
250 sc->sc_st = rman_get_bustag(sc->mem);
251 sc->sc_sh = rman_get_bushandle(sc->mem);
252
253 i = 0;
254 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
255 RF_ACTIVE | RF_SHAREABLE);
256 if (sc->irq == NULL) {
257 device_printf(dev, "could not allocate interrupt resource\n");
258 goto fail1;
259 }
260
261 if (ipw_reset(sc) != 0) {
262 device_printf(dev, "could not reset adapter\n");
263 goto fail2;
264 }
265
266 if (ipw_dma_alloc(sc) != 0) {
267 device_printf(dev, "could not allocate DMA resources\n");
268 goto fail2;
269 }
270
271 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
272 if (ifp == NULL) {
273 device_printf(dev, "can not if_alloc()\n");
274 goto fail3;
275 }
276 ic = ifp->if_l2com;
277
278 ifp->if_softc = sc;
279 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
280 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
281 ifp->if_init = ipw_init;
282 ifp->if_ioctl = ipw_ioctl;
283 ifp->if_start = ipw_start;
284 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
285 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
286 IFQ_SET_READY(&ifp->if_snd);
287
288 ic->ic_ifp = ifp;
289 ic->ic_opmode = IEEE80211_M_STA;
290 ic->ic_phytype = IEEE80211_T_DS;
291
292 /* set device capabilities */
293 ic->ic_caps =
294 IEEE80211_C_STA /* station mode supported */
295 | IEEE80211_C_IBSS /* IBSS mode supported */
296 | IEEE80211_C_MONITOR /* monitor mode supported */
297 | IEEE80211_C_PMGT /* power save supported */
298 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
299 | IEEE80211_C_WPA /* 802.11i supported */
300 ;
301
302 /* read MAC address from EEPROM */
303 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
304 macaddr[0] = val >> 8;
305 macaddr[1] = val & 0xff;
306 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
307 macaddr[2] = val >> 8;
308 macaddr[3] = val & 0xff;
309 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
310 macaddr[4] = val >> 8;
311 macaddr[5] = val & 0xff;
312
313 /* set supported .11b channels (read from EEPROM) */
314 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
315 val = 0x7ff; /* default to channels 1-11 */
316 val <<= 1;
317 for (i = 1; i < 16; i++) {
318 if (val & (1 << i)) {
319 c = &ic->ic_channels[ic->ic_nchans++];
320 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
321 c->ic_flags = IEEE80211_CHAN_B;
322 c->ic_ieee = i;
323 }
324 }
325
326 /* check support for radio transmitter switch in EEPROM */
327 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
328 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
329
330 ieee80211_ifattach(ic, macaddr);
331 ic->ic_scan_start = ipw_scan_start;
332 ic->ic_scan_end = ipw_scan_end;
333 ic->ic_set_channel = ipw_set_channel;
334 ic->ic_scan_curchan = ipw_scan_curchan;
335 ic->ic_scan_mindwell = ipw_scan_mindwell;
336 ic->ic_raw_xmit = ipw_raw_xmit;
337
338 ic->ic_vap_create = ipw_vap_create;
339 ic->ic_vap_delete = ipw_vap_delete;
340
341 ieee80211_radiotap_attach(ic,
342 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
343 IPW_TX_RADIOTAP_PRESENT,
344 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
345 IPW_RX_RADIOTAP_PRESENT);
346
347 /*
348 * Add a few sysctl knobs.
349 */
350 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
351 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
352 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
353 "radio transmitter switch state (0=off, 1=on)");
354
355 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
356 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
357 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
358 "statistics");
359
360 /*
361 * Hook our interrupt after all initialization is complete.
362 */
363 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
364 NULL, ipw_intr, sc, &sc->sc_ih);
365 if (error != 0) {
366 device_printf(dev, "could not set up interrupt\n");
367 goto fail4;
368 }
369
370 if (bootverbose)
371 ieee80211_announce(ic);
372
373 return 0;
374fail4:
375 if_free(ifp);
376fail3:
377 ipw_release(sc);
378fail2:
379 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
380fail1:
381 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
382 sc->mem);
383fail:
384 mtx_destroy(&sc->sc_mtx);
385 return ENXIO;
386}
387
388static int
389ipw_detach(device_t dev)
390{
391 struct ipw_softc *sc = device_get_softc(dev);
392 struct ifnet *ifp = sc->sc_ifp;
393 struct ieee80211com *ic = ifp->if_l2com;
394
395 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
396
397 ieee80211_draintask(ic, &sc->sc_init_task);
398 ipw_stop(sc);
399
400 ieee80211_ifdetach(ic);
401
402 callout_drain(&sc->sc_wdtimer);
403
404 ipw_release(sc);
405
406 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
407
408 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
409 sc->mem);
410
411 if_free(ifp);
412
413 if (sc->sc_firmware != NULL) {
414 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
415 sc->sc_firmware = NULL;
416 }
417
418 mtx_destroy(&sc->sc_mtx);
419
420 return 0;
421}
422
423static struct ieee80211vap *
424ipw_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
425 enum ieee80211_opmode opmode, int flags,
426 const uint8_t bssid[IEEE80211_ADDR_LEN],
427 const uint8_t mac[IEEE80211_ADDR_LEN])
428{
429 struct ifnet *ifp = ic->ic_ifp;
430 struct ipw_softc *sc = ifp->if_softc;
431 struct ipw_vap *ivp;
432 struct ieee80211vap *vap;
433 const struct firmware *fp;
434 const struct ipw_firmware_hdr *hdr;
435 const char *imagename;
436
437 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
438 return NULL;
439
440 switch (opmode) {
441 case IEEE80211_M_STA:
442 imagename = "ipw_bss";
443 break;
444 case IEEE80211_M_IBSS:
445 imagename = "ipw_ibss";
446 break;
447 case IEEE80211_M_MONITOR:
448 imagename = "ipw_monitor";
449 break;
450 default:
451 return NULL;
452 }
453
454 /*
455 * Load firmware image using the firmware(9) subsystem. Doing
456 * this unlocked is ok since we're single-threaded by the
457 * 802.11 layer.
458 */
459 if (sc->sc_firmware == NULL ||
460 strcmp(sc->sc_firmware->name, imagename) != 0) {
461 if (sc->sc_firmware != NULL)
462 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
463 sc->sc_firmware = firmware_get(imagename);
464 }
465 if (sc->sc_firmware == NULL) {
466 device_printf(sc->sc_dev,
467 "could not load firmware image '%s'\n", imagename);
468 return NULL;
469 }
470 fp = sc->sc_firmware;
471 if (fp->datasize < sizeof *hdr) {
472 device_printf(sc->sc_dev,
473 "firmware image too short %zu\n", fp->datasize);
474 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
475 sc->sc_firmware = NULL;
476 return NULL;
477 }
478 hdr = (const struct ipw_firmware_hdr *)fp->data;
479 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
480 le32toh(hdr->ucodesz)) {
481 device_printf(sc->sc_dev,
482 "firmware image too short %zu\n", fp->datasize);
483 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
484 sc->sc_firmware = NULL;
485 return NULL;
486 }
487
488 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap),
489 M_80211_VAP, M_NOWAIT | M_ZERO);
490 if (ivp == NULL)
491 return NULL;
492 vap = &ivp->vap;
493
494 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
495 /* override with driver methods */
496 ivp->newstate = vap->iv_newstate;
497 vap->iv_newstate = ipw_newstate;
498
499 /* complete setup */
500 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status);
501 ic->ic_opmode = opmode;
502 return vap;
503}
504
505static void
506ipw_vap_delete(struct ieee80211vap *vap)
507{
508 struct ipw_vap *ivp = IPW_VAP(vap);
509
510 ieee80211_vap_detach(vap);
511 free(ivp, M_80211_VAP);
512}
513
514static int
515ipw_dma_alloc(struct ipw_softc *sc)
516{
517 struct ipw_soft_bd *sbd;
518 struct ipw_soft_hdr *shdr;
519 struct ipw_soft_buf *sbuf;
520 bus_addr_t physaddr;
521 int error, i;
522
523 /*
524 * Allocate parent DMA tag for subsequent allocations.
525 */
526 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
527 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
528 BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
529 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
530 if (error != 0) {
531 device_printf(sc->sc_dev, "could not create parent DMA tag\n");
532 goto fail;
533 }
534
535 /*
536 * Allocate and map tx ring.
537 */
538 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
539 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
540 NULL, &sc->tbd_dmat);
541 if (error != 0) {
542 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
543 goto fail;
544 }
545
546 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
547 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
548 if (error != 0) {
549 device_printf(sc->sc_dev,
550 "could not allocate tx ring DMA memory\n");
551 goto fail;
552 }
553
554 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
555 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
556 if (error != 0) {
557 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
558 goto fail;
559 }
560
561 /*
562 * Allocate and map rx ring.
563 */
564 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
565 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
566 NULL, &sc->rbd_dmat);
567 if (error != 0) {
568 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
569 goto fail;
570 }
571
572 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
573 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
574 if (error != 0) {
575 device_printf(sc->sc_dev,
576 "could not allocate rx ring DMA memory\n");
577 goto fail;
578 }
579
580 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
581 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
582 if (error != 0) {
583 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
584 goto fail;
585 }
586
587 /*
588 * Allocate and map status ring.
589 */
590 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
591 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
592 NULL, NULL, &sc->status_dmat);
593 if (error != 0) {
594 device_printf(sc->sc_dev,
595 "could not create status ring DMA tag\n");
596 goto fail;
597 }
598
599 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
600 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
601 if (error != 0) {
602 device_printf(sc->sc_dev,
603 "could not allocate status ring DMA memory\n");
604 goto fail;
605 }
606
607 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
608 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
609 0);
610 if (error != 0) {
611 device_printf(sc->sc_dev,
612 "could not map status ring DMA memory\n");
613 goto fail;
614 }
615
616 /*
617 * Allocate command DMA map.
618 */
619 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
620 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
621 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
622 if (error != 0) {
623 device_printf(sc->sc_dev, "could not create command DMA tag\n");
624 goto fail;
625 }
626
627 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
628 if (error != 0) {
629 device_printf(sc->sc_dev,
630 "could not create command DMA map\n");
631 goto fail;
632 }
633
634 /*
635 * Allocate headers DMA maps.
636 */
637 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
638 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
639 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
640 if (error != 0) {
641 device_printf(sc->sc_dev, "could not create header DMA tag\n");
642 goto fail;
643 }
644
645 SLIST_INIT(&sc->free_shdr);
646 for (i = 0; i < IPW_NDATA; i++) {
647 shdr = &sc->shdr_list[i];
648 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
649 if (error != 0) {
650 device_printf(sc->sc_dev,
651 "could not create header DMA map\n");
652 goto fail;
653 }
654 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
655 }
656
657 /*
658 * Allocate tx buffers DMA maps.
659 */
660 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
661 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
662 NULL, NULL, &sc->txbuf_dmat);
663 if (error != 0) {
664 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
665 goto fail;
666 }
667
668 SLIST_INIT(&sc->free_sbuf);
669 for (i = 0; i < IPW_NDATA; i++) {
670 sbuf = &sc->tx_sbuf_list[i];
671 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
672 if (error != 0) {
673 device_printf(sc->sc_dev,
674 "could not create tx DMA map\n");
675 goto fail;
676 }
677 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
678 }
679
680 /*
681 * Initialize tx ring.
682 */
683 for (i = 0; i < IPW_NTBD; i++) {
684 sbd = &sc->stbd_list[i];
685 sbd->bd = &sc->tbd_list[i];
686 sbd->type = IPW_SBD_TYPE_NOASSOC;
687 }
688
689 /*
690 * Pre-allocate rx buffers and DMA maps.
691 */
692 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
693 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
694 NULL, &sc->rxbuf_dmat);
695 if (error != 0) {
696 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
697 goto fail;
698 }
699
700 for (i = 0; i < IPW_NRBD; i++) {
701 sbd = &sc->srbd_list[i];
702 sbuf = &sc->rx_sbuf_list[i];
703 sbd->bd = &sc->rbd_list[i];
704
705 sbuf->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
706 if (sbuf->m == NULL) {
707 device_printf(sc->sc_dev,
708 "could not allocate rx mbuf\n");
709 error = ENOMEM;
710 goto fail;
711 }
712
713 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
714 if (error != 0) {
715 device_printf(sc->sc_dev,
716 "could not create rx DMA map\n");
717 goto fail;
718 }
719
720 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
721 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
722 &physaddr, 0);
723 if (error != 0) {
724 device_printf(sc->sc_dev,
725 "could not map rx DMA memory\n");
726 goto fail;
727 }
728
729 sbd->type = IPW_SBD_TYPE_DATA;
730 sbd->priv = sbuf;
731 sbd->bd->physaddr = htole32(physaddr);
732 sbd->bd->len = htole32(MCLBYTES);
733 }
734
735 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
736
737 return 0;
738
739fail: ipw_release(sc);
740 return error;
741}
742
743static void
744ipw_release(struct ipw_softc *sc)
745{
746 struct ipw_soft_buf *sbuf;
747 int i;
748
749 if (sc->parent_dmat != NULL) {
750 bus_dma_tag_destroy(sc->parent_dmat);
751 }
752
753 if (sc->tbd_dmat != NULL) {
754 if (sc->stbd_list != NULL) {
755 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
756 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list,
757 sc->tbd_map);
758 }
759 bus_dma_tag_destroy(sc->tbd_dmat);
760 }
761
762 if (sc->rbd_dmat != NULL) {
763 if (sc->rbd_list != NULL) {
764 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
765 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
766 sc->rbd_map);
767 }
768 bus_dma_tag_destroy(sc->rbd_dmat);
769 }
770
771 if (sc->status_dmat != NULL) {
772 if (sc->status_list != NULL) {
773 bus_dmamap_unload(sc->status_dmat, sc->status_map);
774 bus_dmamem_free(sc->status_dmat, sc->status_list,
775 sc->status_map);
776 }
777 bus_dma_tag_destroy(sc->status_dmat);
778 }
779
780 for (i = 0; i < IPW_NTBD; i++)
781 ipw_release_sbd(sc, &sc->stbd_list[i]);
782
783 if (sc->cmd_dmat != NULL) {
784 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
785 bus_dma_tag_destroy(sc->cmd_dmat);
786 }
787
788 if (sc->hdr_dmat != NULL) {
789 for (i = 0; i < IPW_NDATA; i++)
790 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
791 bus_dma_tag_destroy(sc->hdr_dmat);
792 }
793
794 if (sc->txbuf_dmat != NULL) {
795 for (i = 0; i < IPW_NDATA; i++) {
796 bus_dmamap_destroy(sc->txbuf_dmat,
797 sc->tx_sbuf_list[i].map);
798 }
799 bus_dma_tag_destroy(sc->txbuf_dmat);
800 }
801
802 if (sc->rxbuf_dmat != NULL) {
803 for (i = 0; i < IPW_NRBD; i++) {
804 sbuf = &sc->rx_sbuf_list[i];
805 if (sbuf->m != NULL) {
806 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
807 BUS_DMASYNC_POSTREAD);
808 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
809 m_freem(sbuf->m);
810 }
811 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
812 }
813 bus_dma_tag_destroy(sc->rxbuf_dmat);
814 }
815}
816
817static int
818ipw_shutdown(device_t dev)
819{
820 struct ipw_softc *sc = device_get_softc(dev);
821
822 ipw_stop(sc);
823
824 return 0;
825}
826
827static int
828ipw_suspend(device_t dev)
829{
830 struct ipw_softc *sc = device_get_softc(dev);
831 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
832
833 ieee80211_suspend_all(ic);
834 return 0;
835}
836
837static int
838ipw_resume(device_t dev)
839{
840 struct ipw_softc *sc = device_get_softc(dev);
841 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
842
843 pci_write_config(dev, 0x41, 0, 1);
844
845 ieee80211_resume_all(ic);
846 return 0;
847}
848
849static int
850ipw_cvtrate(int ipwrate)
851{
852 switch (ipwrate) {
853 case IPW_RATE_DS1: return 2;
854 case IPW_RATE_DS2: return 4;
855 case IPW_RATE_DS5: return 11;
856 case IPW_RATE_DS11: return 22;
857 }
858 return 0;
859}
860
861/*
862 * The firmware automatically adapts the transmit speed. We report its current
863 * value here.
864 */
865static void
866ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
867{
868 struct ieee80211vap *vap = ifp->if_softc;
869 struct ieee80211com *ic = vap->iv_ic;
870 struct ipw_softc *sc = ic->ic_ifp->if_softc;
871
872 /* read current transmission rate from adapter */
873 vap->iv_bss->ni_txrate = ipw_cvtrate(
874 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
875 ieee80211_media_status(ifp, imr);
876}
877
878static int
879ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
880{
881 struct ipw_vap *ivp = IPW_VAP(vap);
882 struct ieee80211com *ic = vap->iv_ic;
883 struct ifnet *ifp = ic->ic_ifp;
884 struct ipw_softc *sc = ifp->if_softc;
885 enum ieee80211_state ostate;
886
887 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
888 ieee80211_state_name[vap->iv_state],
889 ieee80211_state_name[nstate], sc->flags));
890
891 ostate = vap->iv_state;
892 IEEE80211_UNLOCK(ic);
893
894 switch (nstate) {
895 case IEEE80211_S_RUN:
896 if (ic->ic_opmode == IEEE80211_M_IBSS) {
897 /*
898 * XXX when joining an ibss network we are called
899 * with a SCAN -> RUN transition on scan complete.
900 * Use that to call ipw_assoc. On completing the
901 * join we are then called again with an AUTH -> RUN
902 * transition and we want to do nothing. This is
903 * all totally bogus and needs to be redone.
904 */
905 if (ostate == IEEE80211_S_SCAN)
906 ipw_assoc(ic, vap);
907 }
908 break;
909
910 case IEEE80211_S_INIT:
911 if (sc->flags & IPW_FLAG_ASSOCIATED)
912 ipw_disassoc(ic, vap);
913 break;
914
915 case IEEE80211_S_AUTH:
916 /*
917 * Move to ASSOC state after the ipw_assoc() call. Firmware
918 * takes care of authentication, after the call we'll receive
919 * only an assoc response which would otherwise be discared
920 * if we are still in AUTH state.
921 */
922 nstate = IEEE80211_S_ASSOC;
923 ipw_assoc(ic, vap);
924 break;
925
926 case IEEE80211_S_ASSOC:
927 /*
928 * If we are not transitioning from AUTH then resend the
929 * association request.
930 */
931 if (ostate != IEEE80211_S_AUTH)
932 ipw_assoc(ic, vap);
933 break;
934
935 default:
936 break;
937 }
938 IEEE80211_LOCK(ic);
939 return ivp->newstate(vap, nstate, arg);
940}
941
942/*
943 * Read 16 bits at address 'addr' from the serial EEPROM.
944 */
945static uint16_t
946ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
947{
948 uint32_t tmp;
949 uint16_t val;
950 int n;
951
952 /* clock C once before the first command */
953 IPW_EEPROM_CTL(sc, 0);
954 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
955 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
956 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
957
958 /* write start bit (1) */
959 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
960 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
961
962 /* write READ opcode (10) */
963 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
964 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
965 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
966 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
967
968 /* write address A7-A0 */
969 for (n = 7; n >= 0; n--) {
970 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
971 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
972 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
973 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
974 }
975
976 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
977
978 /* read data Q15-Q0 */
979 val = 0;
980 for (n = 15; n >= 0; n--) {
981 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
982 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
983 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
984 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
985 }
986
987 IPW_EEPROM_CTL(sc, 0);
988
989 /* clear Chip Select and clock C */
990 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
991 IPW_EEPROM_CTL(sc, 0);
992 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
993
994 return le16toh(val);
995}
996
997static void
998ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
999{
1000 struct ipw_cmd *cmd;
1001
1002 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1003
1004 cmd = mtod(sbuf->m, struct ipw_cmd *);
1005
1006 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
1007 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
1008 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
1009 le32toh(cmd->status)));
1010
1011 sc->flags &= ~IPW_FLAG_BUSY;
1012 wakeup(sc);
1013}
1014
1015static void
1016ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1017{
1018#define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
1019 struct ifnet *ifp = sc->sc_ifp;
1020 struct ieee80211com *ic = ifp->if_l2com;
1021 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1022 uint32_t state;
1023
1024 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1025
1026 state = le32toh(*mtod(sbuf->m, uint32_t *));
1027
1028 switch (state) {
1029 case IPW_STATE_ASSOCIATED:
1030 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1031 IEEESTATE(vap), sc->flags));
1032 /* XXX suppress state change in case the fw auto-associates */
1033 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1034 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1035 IEEESTATE(vap), sc->flags));
1036 break;
1037 }
1038 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1039 sc->flags |= IPW_FLAG_ASSOCIATED;
1040 break;
1041
1042 case IPW_STATE_SCANNING:
1043 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1044 IEEESTATE(vap), sc->flags));
1045 /*
1046 * NB: Check driver state for association on assoc
1047 * loss as the firmware will immediately start to
1048 * scan and we would treat it as a beacon miss if
1049 * we checked the 802.11 layer state.
1050 */
1051 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1052 IPW_UNLOCK(sc);
1053 /* XXX probably need to issue disassoc to fw */
1054 ieee80211_beacon_miss(ic);
1055 IPW_LOCK(sc);
1056 }
1057 break;
1058
1059 case IPW_STATE_SCAN_COMPLETE:
1060 /*
1061 * XXX For some reason scan requests generate scan
1062 * started + scan done events before any traffic is
1063 * received (e.g. probe response frames). We work
1064 * around this by marking the HACK flag and skipping
1065 * the first scan complete event.
1066 */
1067 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1068 IEEESTATE(vap), sc->flags));
1069 if (sc->flags & IPW_FLAG_HACK) {
1070 sc->flags &= ~IPW_FLAG_HACK;
1071 break;
1072 }
1073 if (sc->flags & IPW_FLAG_SCANNING) {
1074 IPW_UNLOCK(sc);
1075 ieee80211_scan_done(vap);
1076 IPW_LOCK(sc);
1077 sc->flags &= ~IPW_FLAG_SCANNING;
1078 sc->sc_scan_timer = 0;
1079 }
1080 break;
1081
1082 case IPW_STATE_ASSOCIATION_LOST:
1083 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1084 IEEESTATE(vap), sc->flags));
1085 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1086 if (vap->iv_state == IEEE80211_S_RUN) {
1087 IPW_UNLOCK(sc);
1088 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1089 IPW_LOCK(sc);
1090 }
1091 break;
1092
1093 case IPW_STATE_DISABLED:
1094 /* XXX? is this right? */
1095 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1096 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1097 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1098 IEEESTATE(vap), sc->flags));
1099 break;
1100
1101 case IPW_STATE_RADIO_DISABLED:
1102 device_printf(sc->sc_dev, "radio turned off\n");
1103 ieee80211_notify_radio(ic, 0);
1104 ipw_stop_locked(sc);
1105 /* XXX start polling thread to detect radio on */
1106 break;
1107
1108 default:
1109 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1110 __func__, state, IEEESTATE(vap), sc->flags));
1111 break;
1112 }
1113#undef IEEESTATE
1114}
1115
1116/*
1117 * Set driver state for current channel.
1118 */
1119static void
1120ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1121{
1122 struct ifnet *ifp = sc->sc_ifp;
1123 struct ieee80211com *ic = ifp->if_l2com;
1124
1125 ic->ic_curchan = chan;
1126 ieee80211_radiotap_chan_change(ic);
1127}
1128
1129/*
1130 * XXX: Hack to set the current channel to the value advertised in beacons or
1131 * probe responses. Only used during AP detection.
1132 */
1133static void
1134ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1135{
1136 struct ifnet *ifp = sc->sc_ifp;
1137 struct ieee80211com *ic = ifp->if_l2com;
1138 struct ieee80211_channel *c;
1139 struct ieee80211_frame *wh;
1140 uint8_t subtype;
1141 uint8_t *frm, *efrm;
1142
1143 wh = mtod(m, struct ieee80211_frame *);
1144
1145 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1146 return;
1147
1148 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1149
1150 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1151 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1152 return;
1153
1154 /* XXX use ieee80211_parse_beacon */
1155 frm = (uint8_t *)(wh + 1);
1156 efrm = mtod(m, uint8_t *) + m->m_len;
1157
1158 frm += 12; /* skip tstamp, bintval and capinfo fields */
1159 while (frm < efrm) {
1160 if (*frm == IEEE80211_ELEMID_DSPARMS)
1161#if IEEE80211_CHAN_MAX < 255
1162 if (frm[2] <= IEEE80211_CHAN_MAX)
1163#endif
1164 {
1165 DPRINTF(("Fixing channel to %d\n", frm[2]));
1166 c = ieee80211_find_channel(ic,
1167 ieee80211_ieee2mhz(frm[2], 0),
1168 IEEE80211_CHAN_B);
1169 if (c == NULL)
1170 c = &ic->ic_channels[0];
1171 ipw_setcurchan(sc, c);
1172 }
1173
1174 frm += frm[1] + 2;
1175 }
1176}
1177
1178static void
1179ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1180 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1181{
1182 struct ifnet *ifp = sc->sc_ifp;
1183 struct ieee80211com *ic = ifp->if_l2com;
1184 struct mbuf *mnew, *m;
1185 struct ieee80211_node *ni;
1186 bus_addr_t physaddr;
1187 int error;
1188 int8_t rssi, nf;
1189
1190 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1191 status->rssi));
1192
1193 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1194 le32toh(status->len) > MCLBYTES)
1195 return;
1196
1197 /*
1198 * Try to allocate a new mbuf for this ring element and load it before
1199 * processing the current mbuf. If the ring element cannot be loaded,
1200 * drop the received packet and reuse the old mbuf. In the unlikely
1201 * case that the old mbuf can't be reloaded either, explicitly panic.
1202 */
1203 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1204 if (mnew == NULL) {
| 32
33/*-
34 * Intel(R) PRO/Wireless 2100 MiniPCI driver
35 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
36 */
37
38#include <sys/param.h>
39#include <sys/sysctl.h>
40#include <sys/sockio.h>
41#include <sys/mbuf.h>
42#include <sys/kernel.h>
43#include <sys/socket.h>
44#include <sys/systm.h>
45#include <sys/malloc.h>
46#include <sys/queue.h>
47#include <sys/taskqueue.h>
48#include <sys/module.h>
49#include <sys/bus.h>
50#include <sys/endian.h>
51#include <sys/linker.h>
52#include <sys/firmware.h>
53
54#include <machine/bus.h>
55#include <machine/resource.h>
56#include <sys/rman.h>
57
58#include <dev/pci/pcireg.h>
59#include <dev/pci/pcivar.h>
60
61#include <net/bpf.h>
62#include <net/if.h>
63#include <net/if_var.h>
64#include <net/if_arp.h>
65#include <net/ethernet.h>
66#include <net/if_dl.h>
67#include <net/if_media.h>
68#include <net/if_types.h>
69
70#include <net80211/ieee80211_var.h>
71#include <net80211/ieee80211_radiotap.h>
72
73#include <netinet/in.h>
74#include <netinet/in_systm.h>
75#include <netinet/in_var.h>
76#include <netinet/ip.h>
77#include <netinet/if_ether.h>
78
79#include <dev/ipw/if_ipwreg.h>
80#include <dev/ipw/if_ipwvar.h>
81
82#define IPW_DEBUG
83#ifdef IPW_DEBUG
84#define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0)
85#define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0)
86int ipw_debug = 0;
87SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level");
88#else
89#define DPRINTF(x)
90#define DPRINTFN(n, x)
91#endif
92
93MODULE_DEPEND(ipw, pci, 1, 1, 1);
94MODULE_DEPEND(ipw, wlan, 1, 1, 1);
95MODULE_DEPEND(ipw, firmware, 1, 1, 1);
96
97struct ipw_ident {
98 uint16_t vendor;
99 uint16_t device;
100 const char *name;
101};
102
103static const struct ipw_ident ipw_ident_table[] = {
104 { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" },
105
106 { 0, 0, NULL }
107};
108
109static struct ieee80211vap *ipw_vap_create(struct ieee80211com *,
110 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
111 const uint8_t [IEEE80211_ADDR_LEN],
112 const uint8_t [IEEE80211_ADDR_LEN]);
113static void ipw_vap_delete(struct ieee80211vap *);
114static int ipw_dma_alloc(struct ipw_softc *);
115static void ipw_release(struct ipw_softc *);
116static void ipw_media_status(struct ifnet *, struct ifmediareq *);
117static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int);
118static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t);
119static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
120static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
121static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
122 struct ipw_soft_bd *, struct ipw_soft_buf *);
123static void ipw_rx_intr(struct ipw_softc *);
124static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
125static void ipw_tx_intr(struct ipw_softc *);
126static void ipw_intr(void *);
127static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
128static const char * ipw_cmdname(int);
129static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
130static int ipw_tx_start(struct ifnet *, struct mbuf *,
131 struct ieee80211_node *);
132static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
133 const struct ieee80211_bpf_params *);
134static void ipw_start(struct ifnet *);
135static void ipw_start_locked(struct ifnet *);
136static void ipw_watchdog(void *);
137static int ipw_ioctl(struct ifnet *, u_long, caddr_t);
138static void ipw_stop_master(struct ipw_softc *);
139static int ipw_enable(struct ipw_softc *);
140static int ipw_disable(struct ipw_softc *);
141static int ipw_reset(struct ipw_softc *);
142static int ipw_load_ucode(struct ipw_softc *, const char *, int);
143static int ipw_load_firmware(struct ipw_softc *, const char *, int);
144static int ipw_config(struct ipw_softc *);
145static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
146static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
147static void ipw_init_task(void *, int);
148static void ipw_init(void *);
149static void ipw_init_locked(struct ipw_softc *);
150static void ipw_stop(void *);
151static void ipw_stop_locked(struct ipw_softc *);
152static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
153static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
154static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
155static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
156#if 0
157static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
158 uint32_t *);
159static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
160 bus_size_t);
161#endif
162static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
163 const uint8_t *, bus_size_t);
164static int ipw_scan(struct ipw_softc *);
165static void ipw_scan_start(struct ieee80211com *);
166static void ipw_scan_end(struct ieee80211com *);
167static void ipw_set_channel(struct ieee80211com *);
168static void ipw_scan_curchan(struct ieee80211_scan_state *,
169 unsigned long maxdwell);
170static void ipw_scan_mindwell(struct ieee80211_scan_state *);
171
172static int ipw_probe(device_t);
173static int ipw_attach(device_t);
174static int ipw_detach(device_t);
175static int ipw_shutdown(device_t);
176static int ipw_suspend(device_t);
177static int ipw_resume(device_t);
178
179static device_method_t ipw_methods[] = {
180 /* Device interface */
181 DEVMETHOD(device_probe, ipw_probe),
182 DEVMETHOD(device_attach, ipw_attach),
183 DEVMETHOD(device_detach, ipw_detach),
184 DEVMETHOD(device_shutdown, ipw_shutdown),
185 DEVMETHOD(device_suspend, ipw_suspend),
186 DEVMETHOD(device_resume, ipw_resume),
187
188 DEVMETHOD_END
189};
190
191static driver_t ipw_driver = {
192 "ipw",
193 ipw_methods,
194 sizeof (struct ipw_softc)
195};
196
197static devclass_t ipw_devclass;
198
199DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, NULL, NULL);
200
201MODULE_VERSION(ipw, 1);
202
203static int
204ipw_probe(device_t dev)
205{
206 const struct ipw_ident *ident;
207
208 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
209 if (pci_get_vendor(dev) == ident->vendor &&
210 pci_get_device(dev) == ident->device) {
211 device_set_desc(dev, ident->name);
212 return (BUS_PROBE_DEFAULT);
213 }
214 }
215 return ENXIO;
216}
217
218/* Base Address Register */
219static int
220ipw_attach(device_t dev)
221{
222 struct ipw_softc *sc = device_get_softc(dev);
223 struct ifnet *ifp;
224 struct ieee80211com *ic;
225 struct ieee80211_channel *c;
226 uint16_t val;
227 int error, i;
228 uint8_t macaddr[IEEE80211_ADDR_LEN];
229
230 sc->sc_dev = dev;
231
232 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
233 MTX_DEF | MTX_RECURSE);
234
235 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
236 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
237
238 pci_write_config(dev, 0x41, 0, 1);
239
240 /* enable bus-mastering */
241 pci_enable_busmaster(dev);
242
243 i = PCIR_BAR(0);
244 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE);
245 if (sc->mem == NULL) {
246 device_printf(dev, "could not allocate memory resource\n");
247 goto fail;
248 }
249
250 sc->sc_st = rman_get_bustag(sc->mem);
251 sc->sc_sh = rman_get_bushandle(sc->mem);
252
253 i = 0;
254 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
255 RF_ACTIVE | RF_SHAREABLE);
256 if (sc->irq == NULL) {
257 device_printf(dev, "could not allocate interrupt resource\n");
258 goto fail1;
259 }
260
261 if (ipw_reset(sc) != 0) {
262 device_printf(dev, "could not reset adapter\n");
263 goto fail2;
264 }
265
266 if (ipw_dma_alloc(sc) != 0) {
267 device_printf(dev, "could not allocate DMA resources\n");
268 goto fail2;
269 }
270
271 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
272 if (ifp == NULL) {
273 device_printf(dev, "can not if_alloc()\n");
274 goto fail3;
275 }
276 ic = ifp->if_l2com;
277
278 ifp->if_softc = sc;
279 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
280 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
281 ifp->if_init = ipw_init;
282 ifp->if_ioctl = ipw_ioctl;
283 ifp->if_start = ipw_start;
284 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
285 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
286 IFQ_SET_READY(&ifp->if_snd);
287
288 ic->ic_ifp = ifp;
289 ic->ic_opmode = IEEE80211_M_STA;
290 ic->ic_phytype = IEEE80211_T_DS;
291
292 /* set device capabilities */
293 ic->ic_caps =
294 IEEE80211_C_STA /* station mode supported */
295 | IEEE80211_C_IBSS /* IBSS mode supported */
296 | IEEE80211_C_MONITOR /* monitor mode supported */
297 | IEEE80211_C_PMGT /* power save supported */
298 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
299 | IEEE80211_C_WPA /* 802.11i supported */
300 ;
301
302 /* read MAC address from EEPROM */
303 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
304 macaddr[0] = val >> 8;
305 macaddr[1] = val & 0xff;
306 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
307 macaddr[2] = val >> 8;
308 macaddr[3] = val & 0xff;
309 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
310 macaddr[4] = val >> 8;
311 macaddr[5] = val & 0xff;
312
313 /* set supported .11b channels (read from EEPROM) */
314 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
315 val = 0x7ff; /* default to channels 1-11 */
316 val <<= 1;
317 for (i = 1; i < 16; i++) {
318 if (val & (1 << i)) {
319 c = &ic->ic_channels[ic->ic_nchans++];
320 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
321 c->ic_flags = IEEE80211_CHAN_B;
322 c->ic_ieee = i;
323 }
324 }
325
326 /* check support for radio transmitter switch in EEPROM */
327 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
328 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
329
330 ieee80211_ifattach(ic, macaddr);
331 ic->ic_scan_start = ipw_scan_start;
332 ic->ic_scan_end = ipw_scan_end;
333 ic->ic_set_channel = ipw_set_channel;
334 ic->ic_scan_curchan = ipw_scan_curchan;
335 ic->ic_scan_mindwell = ipw_scan_mindwell;
336 ic->ic_raw_xmit = ipw_raw_xmit;
337
338 ic->ic_vap_create = ipw_vap_create;
339 ic->ic_vap_delete = ipw_vap_delete;
340
341 ieee80211_radiotap_attach(ic,
342 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
343 IPW_TX_RADIOTAP_PRESENT,
344 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
345 IPW_RX_RADIOTAP_PRESENT);
346
347 /*
348 * Add a few sysctl knobs.
349 */
350 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
351 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
352 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
353 "radio transmitter switch state (0=off, 1=on)");
354
355 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
356 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
357 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
358 "statistics");
359
360 /*
361 * Hook our interrupt after all initialization is complete.
362 */
363 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
364 NULL, ipw_intr, sc, &sc->sc_ih);
365 if (error != 0) {
366 device_printf(dev, "could not set up interrupt\n");
367 goto fail4;
368 }
369
370 if (bootverbose)
371 ieee80211_announce(ic);
372
373 return 0;
374fail4:
375 if_free(ifp);
376fail3:
377 ipw_release(sc);
378fail2:
379 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
380fail1:
381 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
382 sc->mem);
383fail:
384 mtx_destroy(&sc->sc_mtx);
385 return ENXIO;
386}
387
388static int
389ipw_detach(device_t dev)
390{
391 struct ipw_softc *sc = device_get_softc(dev);
392 struct ifnet *ifp = sc->sc_ifp;
393 struct ieee80211com *ic = ifp->if_l2com;
394
395 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
396
397 ieee80211_draintask(ic, &sc->sc_init_task);
398 ipw_stop(sc);
399
400 ieee80211_ifdetach(ic);
401
402 callout_drain(&sc->sc_wdtimer);
403
404 ipw_release(sc);
405
406 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
407
408 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
409 sc->mem);
410
411 if_free(ifp);
412
413 if (sc->sc_firmware != NULL) {
414 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
415 sc->sc_firmware = NULL;
416 }
417
418 mtx_destroy(&sc->sc_mtx);
419
420 return 0;
421}
422
423static struct ieee80211vap *
424ipw_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
425 enum ieee80211_opmode opmode, int flags,
426 const uint8_t bssid[IEEE80211_ADDR_LEN],
427 const uint8_t mac[IEEE80211_ADDR_LEN])
428{
429 struct ifnet *ifp = ic->ic_ifp;
430 struct ipw_softc *sc = ifp->if_softc;
431 struct ipw_vap *ivp;
432 struct ieee80211vap *vap;
433 const struct firmware *fp;
434 const struct ipw_firmware_hdr *hdr;
435 const char *imagename;
436
437 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
438 return NULL;
439
440 switch (opmode) {
441 case IEEE80211_M_STA:
442 imagename = "ipw_bss";
443 break;
444 case IEEE80211_M_IBSS:
445 imagename = "ipw_ibss";
446 break;
447 case IEEE80211_M_MONITOR:
448 imagename = "ipw_monitor";
449 break;
450 default:
451 return NULL;
452 }
453
454 /*
455 * Load firmware image using the firmware(9) subsystem. Doing
456 * this unlocked is ok since we're single-threaded by the
457 * 802.11 layer.
458 */
459 if (sc->sc_firmware == NULL ||
460 strcmp(sc->sc_firmware->name, imagename) != 0) {
461 if (sc->sc_firmware != NULL)
462 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
463 sc->sc_firmware = firmware_get(imagename);
464 }
465 if (sc->sc_firmware == NULL) {
466 device_printf(sc->sc_dev,
467 "could not load firmware image '%s'\n", imagename);
468 return NULL;
469 }
470 fp = sc->sc_firmware;
471 if (fp->datasize < sizeof *hdr) {
472 device_printf(sc->sc_dev,
473 "firmware image too short %zu\n", fp->datasize);
474 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
475 sc->sc_firmware = NULL;
476 return NULL;
477 }
478 hdr = (const struct ipw_firmware_hdr *)fp->data;
479 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
480 le32toh(hdr->ucodesz)) {
481 device_printf(sc->sc_dev,
482 "firmware image too short %zu\n", fp->datasize);
483 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
484 sc->sc_firmware = NULL;
485 return NULL;
486 }
487
488 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap),
489 M_80211_VAP, M_NOWAIT | M_ZERO);
490 if (ivp == NULL)
491 return NULL;
492 vap = &ivp->vap;
493
494 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
495 /* override with driver methods */
496 ivp->newstate = vap->iv_newstate;
497 vap->iv_newstate = ipw_newstate;
498
499 /* complete setup */
500 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status);
501 ic->ic_opmode = opmode;
502 return vap;
503}
504
505static void
506ipw_vap_delete(struct ieee80211vap *vap)
507{
508 struct ipw_vap *ivp = IPW_VAP(vap);
509
510 ieee80211_vap_detach(vap);
511 free(ivp, M_80211_VAP);
512}
513
514static int
515ipw_dma_alloc(struct ipw_softc *sc)
516{
517 struct ipw_soft_bd *sbd;
518 struct ipw_soft_hdr *shdr;
519 struct ipw_soft_buf *sbuf;
520 bus_addr_t physaddr;
521 int error, i;
522
523 /*
524 * Allocate parent DMA tag for subsequent allocations.
525 */
526 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
527 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
528 BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
529 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
530 if (error != 0) {
531 device_printf(sc->sc_dev, "could not create parent DMA tag\n");
532 goto fail;
533 }
534
535 /*
536 * Allocate and map tx ring.
537 */
538 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
539 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
540 NULL, &sc->tbd_dmat);
541 if (error != 0) {
542 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
543 goto fail;
544 }
545
546 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
547 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
548 if (error != 0) {
549 device_printf(sc->sc_dev,
550 "could not allocate tx ring DMA memory\n");
551 goto fail;
552 }
553
554 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
555 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
556 if (error != 0) {
557 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
558 goto fail;
559 }
560
561 /*
562 * Allocate and map rx ring.
563 */
564 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
565 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
566 NULL, &sc->rbd_dmat);
567 if (error != 0) {
568 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
569 goto fail;
570 }
571
572 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
573 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
574 if (error != 0) {
575 device_printf(sc->sc_dev,
576 "could not allocate rx ring DMA memory\n");
577 goto fail;
578 }
579
580 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
581 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
582 if (error != 0) {
583 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
584 goto fail;
585 }
586
587 /*
588 * Allocate and map status ring.
589 */
590 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
591 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
592 NULL, NULL, &sc->status_dmat);
593 if (error != 0) {
594 device_printf(sc->sc_dev,
595 "could not create status ring DMA tag\n");
596 goto fail;
597 }
598
599 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
600 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
601 if (error != 0) {
602 device_printf(sc->sc_dev,
603 "could not allocate status ring DMA memory\n");
604 goto fail;
605 }
606
607 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
608 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
609 0);
610 if (error != 0) {
611 device_printf(sc->sc_dev,
612 "could not map status ring DMA memory\n");
613 goto fail;
614 }
615
616 /*
617 * Allocate command DMA map.
618 */
619 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
620 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
621 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
622 if (error != 0) {
623 device_printf(sc->sc_dev, "could not create command DMA tag\n");
624 goto fail;
625 }
626
627 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
628 if (error != 0) {
629 device_printf(sc->sc_dev,
630 "could not create command DMA map\n");
631 goto fail;
632 }
633
634 /*
635 * Allocate headers DMA maps.
636 */
637 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
638 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
639 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
640 if (error != 0) {
641 device_printf(sc->sc_dev, "could not create header DMA tag\n");
642 goto fail;
643 }
644
645 SLIST_INIT(&sc->free_shdr);
646 for (i = 0; i < IPW_NDATA; i++) {
647 shdr = &sc->shdr_list[i];
648 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
649 if (error != 0) {
650 device_printf(sc->sc_dev,
651 "could not create header DMA map\n");
652 goto fail;
653 }
654 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
655 }
656
657 /*
658 * Allocate tx buffers DMA maps.
659 */
660 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
661 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
662 NULL, NULL, &sc->txbuf_dmat);
663 if (error != 0) {
664 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
665 goto fail;
666 }
667
668 SLIST_INIT(&sc->free_sbuf);
669 for (i = 0; i < IPW_NDATA; i++) {
670 sbuf = &sc->tx_sbuf_list[i];
671 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
672 if (error != 0) {
673 device_printf(sc->sc_dev,
674 "could not create tx DMA map\n");
675 goto fail;
676 }
677 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
678 }
679
680 /*
681 * Initialize tx ring.
682 */
683 for (i = 0; i < IPW_NTBD; i++) {
684 sbd = &sc->stbd_list[i];
685 sbd->bd = &sc->tbd_list[i];
686 sbd->type = IPW_SBD_TYPE_NOASSOC;
687 }
688
689 /*
690 * Pre-allocate rx buffers and DMA maps.
691 */
692 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
693 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
694 NULL, &sc->rxbuf_dmat);
695 if (error != 0) {
696 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
697 goto fail;
698 }
699
700 for (i = 0; i < IPW_NRBD; i++) {
701 sbd = &sc->srbd_list[i];
702 sbuf = &sc->rx_sbuf_list[i];
703 sbd->bd = &sc->rbd_list[i];
704
705 sbuf->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
706 if (sbuf->m == NULL) {
707 device_printf(sc->sc_dev,
708 "could not allocate rx mbuf\n");
709 error = ENOMEM;
710 goto fail;
711 }
712
713 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
714 if (error != 0) {
715 device_printf(sc->sc_dev,
716 "could not create rx DMA map\n");
717 goto fail;
718 }
719
720 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
721 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
722 &physaddr, 0);
723 if (error != 0) {
724 device_printf(sc->sc_dev,
725 "could not map rx DMA memory\n");
726 goto fail;
727 }
728
729 sbd->type = IPW_SBD_TYPE_DATA;
730 sbd->priv = sbuf;
731 sbd->bd->physaddr = htole32(physaddr);
732 sbd->bd->len = htole32(MCLBYTES);
733 }
734
735 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
736
737 return 0;
738
739fail: ipw_release(sc);
740 return error;
741}
742
743static void
744ipw_release(struct ipw_softc *sc)
745{
746 struct ipw_soft_buf *sbuf;
747 int i;
748
749 if (sc->parent_dmat != NULL) {
750 bus_dma_tag_destroy(sc->parent_dmat);
751 }
752
753 if (sc->tbd_dmat != NULL) {
754 if (sc->stbd_list != NULL) {
755 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
756 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list,
757 sc->tbd_map);
758 }
759 bus_dma_tag_destroy(sc->tbd_dmat);
760 }
761
762 if (sc->rbd_dmat != NULL) {
763 if (sc->rbd_list != NULL) {
764 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
765 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
766 sc->rbd_map);
767 }
768 bus_dma_tag_destroy(sc->rbd_dmat);
769 }
770
771 if (sc->status_dmat != NULL) {
772 if (sc->status_list != NULL) {
773 bus_dmamap_unload(sc->status_dmat, sc->status_map);
774 bus_dmamem_free(sc->status_dmat, sc->status_list,
775 sc->status_map);
776 }
777 bus_dma_tag_destroy(sc->status_dmat);
778 }
779
780 for (i = 0; i < IPW_NTBD; i++)
781 ipw_release_sbd(sc, &sc->stbd_list[i]);
782
783 if (sc->cmd_dmat != NULL) {
784 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
785 bus_dma_tag_destroy(sc->cmd_dmat);
786 }
787
788 if (sc->hdr_dmat != NULL) {
789 for (i = 0; i < IPW_NDATA; i++)
790 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
791 bus_dma_tag_destroy(sc->hdr_dmat);
792 }
793
794 if (sc->txbuf_dmat != NULL) {
795 for (i = 0; i < IPW_NDATA; i++) {
796 bus_dmamap_destroy(sc->txbuf_dmat,
797 sc->tx_sbuf_list[i].map);
798 }
799 bus_dma_tag_destroy(sc->txbuf_dmat);
800 }
801
802 if (sc->rxbuf_dmat != NULL) {
803 for (i = 0; i < IPW_NRBD; i++) {
804 sbuf = &sc->rx_sbuf_list[i];
805 if (sbuf->m != NULL) {
806 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
807 BUS_DMASYNC_POSTREAD);
808 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
809 m_freem(sbuf->m);
810 }
811 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
812 }
813 bus_dma_tag_destroy(sc->rxbuf_dmat);
814 }
815}
816
817static int
818ipw_shutdown(device_t dev)
819{
820 struct ipw_softc *sc = device_get_softc(dev);
821
822 ipw_stop(sc);
823
824 return 0;
825}
826
827static int
828ipw_suspend(device_t dev)
829{
830 struct ipw_softc *sc = device_get_softc(dev);
831 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
832
833 ieee80211_suspend_all(ic);
834 return 0;
835}
836
837static int
838ipw_resume(device_t dev)
839{
840 struct ipw_softc *sc = device_get_softc(dev);
841 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
842
843 pci_write_config(dev, 0x41, 0, 1);
844
845 ieee80211_resume_all(ic);
846 return 0;
847}
848
849static int
850ipw_cvtrate(int ipwrate)
851{
852 switch (ipwrate) {
853 case IPW_RATE_DS1: return 2;
854 case IPW_RATE_DS2: return 4;
855 case IPW_RATE_DS5: return 11;
856 case IPW_RATE_DS11: return 22;
857 }
858 return 0;
859}
860
861/*
862 * The firmware automatically adapts the transmit speed. We report its current
863 * value here.
864 */
865static void
866ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
867{
868 struct ieee80211vap *vap = ifp->if_softc;
869 struct ieee80211com *ic = vap->iv_ic;
870 struct ipw_softc *sc = ic->ic_ifp->if_softc;
871
872 /* read current transmission rate from adapter */
873 vap->iv_bss->ni_txrate = ipw_cvtrate(
874 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
875 ieee80211_media_status(ifp, imr);
876}
877
878static int
879ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
880{
881 struct ipw_vap *ivp = IPW_VAP(vap);
882 struct ieee80211com *ic = vap->iv_ic;
883 struct ifnet *ifp = ic->ic_ifp;
884 struct ipw_softc *sc = ifp->if_softc;
885 enum ieee80211_state ostate;
886
887 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
888 ieee80211_state_name[vap->iv_state],
889 ieee80211_state_name[nstate], sc->flags));
890
891 ostate = vap->iv_state;
892 IEEE80211_UNLOCK(ic);
893
894 switch (nstate) {
895 case IEEE80211_S_RUN:
896 if (ic->ic_opmode == IEEE80211_M_IBSS) {
897 /*
898 * XXX when joining an ibss network we are called
899 * with a SCAN -> RUN transition on scan complete.
900 * Use that to call ipw_assoc. On completing the
901 * join we are then called again with an AUTH -> RUN
902 * transition and we want to do nothing. This is
903 * all totally bogus and needs to be redone.
904 */
905 if (ostate == IEEE80211_S_SCAN)
906 ipw_assoc(ic, vap);
907 }
908 break;
909
910 case IEEE80211_S_INIT:
911 if (sc->flags & IPW_FLAG_ASSOCIATED)
912 ipw_disassoc(ic, vap);
913 break;
914
915 case IEEE80211_S_AUTH:
916 /*
917 * Move to ASSOC state after the ipw_assoc() call. Firmware
918 * takes care of authentication, after the call we'll receive
919 * only an assoc response which would otherwise be discared
920 * if we are still in AUTH state.
921 */
922 nstate = IEEE80211_S_ASSOC;
923 ipw_assoc(ic, vap);
924 break;
925
926 case IEEE80211_S_ASSOC:
927 /*
928 * If we are not transitioning from AUTH then resend the
929 * association request.
930 */
931 if (ostate != IEEE80211_S_AUTH)
932 ipw_assoc(ic, vap);
933 break;
934
935 default:
936 break;
937 }
938 IEEE80211_LOCK(ic);
939 return ivp->newstate(vap, nstate, arg);
940}
941
942/*
943 * Read 16 bits at address 'addr' from the serial EEPROM.
944 */
945static uint16_t
946ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
947{
948 uint32_t tmp;
949 uint16_t val;
950 int n;
951
952 /* clock C once before the first command */
953 IPW_EEPROM_CTL(sc, 0);
954 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
955 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
956 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
957
958 /* write start bit (1) */
959 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
960 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
961
962 /* write READ opcode (10) */
963 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
964 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
965 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
966 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
967
968 /* write address A7-A0 */
969 for (n = 7; n >= 0; n--) {
970 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
971 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
972 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
973 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
974 }
975
976 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
977
978 /* read data Q15-Q0 */
979 val = 0;
980 for (n = 15; n >= 0; n--) {
981 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
982 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
983 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
984 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
985 }
986
987 IPW_EEPROM_CTL(sc, 0);
988
989 /* clear Chip Select and clock C */
990 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
991 IPW_EEPROM_CTL(sc, 0);
992 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
993
994 return le16toh(val);
995}
996
997static void
998ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
999{
1000 struct ipw_cmd *cmd;
1001
1002 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1003
1004 cmd = mtod(sbuf->m, struct ipw_cmd *);
1005
1006 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
1007 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
1008 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
1009 le32toh(cmd->status)));
1010
1011 sc->flags &= ~IPW_FLAG_BUSY;
1012 wakeup(sc);
1013}
1014
1015static void
1016ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1017{
1018#define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
1019 struct ifnet *ifp = sc->sc_ifp;
1020 struct ieee80211com *ic = ifp->if_l2com;
1021 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1022 uint32_t state;
1023
1024 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1025
1026 state = le32toh(*mtod(sbuf->m, uint32_t *));
1027
1028 switch (state) {
1029 case IPW_STATE_ASSOCIATED:
1030 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1031 IEEESTATE(vap), sc->flags));
1032 /* XXX suppress state change in case the fw auto-associates */
1033 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1034 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1035 IEEESTATE(vap), sc->flags));
1036 break;
1037 }
1038 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1039 sc->flags |= IPW_FLAG_ASSOCIATED;
1040 break;
1041
1042 case IPW_STATE_SCANNING:
1043 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1044 IEEESTATE(vap), sc->flags));
1045 /*
1046 * NB: Check driver state for association on assoc
1047 * loss as the firmware will immediately start to
1048 * scan and we would treat it as a beacon miss if
1049 * we checked the 802.11 layer state.
1050 */
1051 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1052 IPW_UNLOCK(sc);
1053 /* XXX probably need to issue disassoc to fw */
1054 ieee80211_beacon_miss(ic);
1055 IPW_LOCK(sc);
1056 }
1057 break;
1058
1059 case IPW_STATE_SCAN_COMPLETE:
1060 /*
1061 * XXX For some reason scan requests generate scan
1062 * started + scan done events before any traffic is
1063 * received (e.g. probe response frames). We work
1064 * around this by marking the HACK flag and skipping
1065 * the first scan complete event.
1066 */
1067 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1068 IEEESTATE(vap), sc->flags));
1069 if (sc->flags & IPW_FLAG_HACK) {
1070 sc->flags &= ~IPW_FLAG_HACK;
1071 break;
1072 }
1073 if (sc->flags & IPW_FLAG_SCANNING) {
1074 IPW_UNLOCK(sc);
1075 ieee80211_scan_done(vap);
1076 IPW_LOCK(sc);
1077 sc->flags &= ~IPW_FLAG_SCANNING;
1078 sc->sc_scan_timer = 0;
1079 }
1080 break;
1081
1082 case IPW_STATE_ASSOCIATION_LOST:
1083 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1084 IEEESTATE(vap), sc->flags));
1085 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1086 if (vap->iv_state == IEEE80211_S_RUN) {
1087 IPW_UNLOCK(sc);
1088 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1089 IPW_LOCK(sc);
1090 }
1091 break;
1092
1093 case IPW_STATE_DISABLED:
1094 /* XXX? is this right? */
1095 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1096 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1097 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1098 IEEESTATE(vap), sc->flags));
1099 break;
1100
1101 case IPW_STATE_RADIO_DISABLED:
1102 device_printf(sc->sc_dev, "radio turned off\n");
1103 ieee80211_notify_radio(ic, 0);
1104 ipw_stop_locked(sc);
1105 /* XXX start polling thread to detect radio on */
1106 break;
1107
1108 default:
1109 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1110 __func__, state, IEEESTATE(vap), sc->flags));
1111 break;
1112 }
1113#undef IEEESTATE
1114}
1115
1116/*
1117 * Set driver state for current channel.
1118 */
1119static void
1120ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1121{
1122 struct ifnet *ifp = sc->sc_ifp;
1123 struct ieee80211com *ic = ifp->if_l2com;
1124
1125 ic->ic_curchan = chan;
1126 ieee80211_radiotap_chan_change(ic);
1127}
1128
1129/*
1130 * XXX: Hack to set the current channel to the value advertised in beacons or
1131 * probe responses. Only used during AP detection.
1132 */
1133static void
1134ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1135{
1136 struct ifnet *ifp = sc->sc_ifp;
1137 struct ieee80211com *ic = ifp->if_l2com;
1138 struct ieee80211_channel *c;
1139 struct ieee80211_frame *wh;
1140 uint8_t subtype;
1141 uint8_t *frm, *efrm;
1142
1143 wh = mtod(m, struct ieee80211_frame *);
1144
1145 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1146 return;
1147
1148 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1149
1150 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1151 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1152 return;
1153
1154 /* XXX use ieee80211_parse_beacon */
1155 frm = (uint8_t *)(wh + 1);
1156 efrm = mtod(m, uint8_t *) + m->m_len;
1157
1158 frm += 12; /* skip tstamp, bintval and capinfo fields */
1159 while (frm < efrm) {
1160 if (*frm == IEEE80211_ELEMID_DSPARMS)
1161#if IEEE80211_CHAN_MAX < 255
1162 if (frm[2] <= IEEE80211_CHAN_MAX)
1163#endif
1164 {
1165 DPRINTF(("Fixing channel to %d\n", frm[2]));
1166 c = ieee80211_find_channel(ic,
1167 ieee80211_ieee2mhz(frm[2], 0),
1168 IEEE80211_CHAN_B);
1169 if (c == NULL)
1170 c = &ic->ic_channels[0];
1171 ipw_setcurchan(sc, c);
1172 }
1173
1174 frm += frm[1] + 2;
1175 }
1176}
1177
1178static void
1179ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1180 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1181{
1182 struct ifnet *ifp = sc->sc_ifp;
1183 struct ieee80211com *ic = ifp->if_l2com;
1184 struct mbuf *mnew, *m;
1185 struct ieee80211_node *ni;
1186 bus_addr_t physaddr;
1187 int error;
1188 int8_t rssi, nf;
1189
1190 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1191 status->rssi));
1192
1193 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1194 le32toh(status->len) > MCLBYTES)
1195 return;
1196
1197 /*
1198 * Try to allocate a new mbuf for this ring element and load it before
1199 * processing the current mbuf. If the ring element cannot be loaded,
1200 * drop the received packet and reuse the old mbuf. In the unlikely
1201 * case that the old mbuf can't be reloaded either, explicitly panic.
1202 */
1203 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1204 if (mnew == NULL) {
|
1205 ifp->if_ierrors++;
| 1205 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
|
1206 return;
1207 }
1208
1209 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1210 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1211
1212 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1213 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1214 if (error != 0) {
1215 m_freem(mnew);
1216
1217 /* try to reload the old mbuf */
1218 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1219 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1220 &physaddr, 0);
1221 if (error != 0) {
1222 /* very unlikely that it will fail... */
1223 panic("%s: could not load old rx mbuf",
1224 device_get_name(sc->sc_dev));
1225 }
| 1206 return;
1207 }
1208
1209 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1210 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1211
1212 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1213 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1214 if (error != 0) {
1215 m_freem(mnew);
1216
1217 /* try to reload the old mbuf */
1218 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1219 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1220 &physaddr, 0);
1221 if (error != 0) {
1222 /* very unlikely that it will fail... */
1223 panic("%s: could not load old rx mbuf",
1224 device_get_name(sc->sc_dev));
1225 }
|
1226 ifp->if_ierrors++;
| 1226 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
|
1227 return;
1228 }
1229
1230 /*
1231 * New mbuf successfully loaded, update Rx ring and continue
1232 * processing.
1233 */
1234 m = sbuf->m;
1235 sbuf->m = mnew;
1236 sbd->bd->physaddr = htole32(physaddr);
1237
1238 /* finalize mbuf */
1239 m->m_pkthdr.rcvif = ifp;
1240 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1241
1242 rssi = status->rssi + IPW_RSSI_TO_DBM;
1243 nf = -95;
1244 if (ieee80211_radiotap_active(ic)) {
1245 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1246
1247 tap->wr_flags = 0;
1248 tap->wr_antsignal = rssi;
1249 tap->wr_antnoise = nf;
1250 }
1251
1252 if (sc->flags & IPW_FLAG_SCANNING)
1253 ipw_fix_channel(sc, m);
1254
1255 IPW_UNLOCK(sc);
1256 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1257 if (ni != NULL) {
1258 (void) ieee80211_input(ni, m, rssi - nf, nf);
1259 ieee80211_free_node(ni);
1260 } else
1261 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
1262 IPW_LOCK(sc);
1263
1264 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1265}
1266
1267static void
1268ipw_rx_intr(struct ipw_softc *sc)
1269{
1270 struct ipw_status *status;
1271 struct ipw_soft_bd *sbd;
1272 struct ipw_soft_buf *sbuf;
1273 uint32_t r, i;
1274
1275 if (!(sc->flags & IPW_FLAG_FW_INITED))
1276 return;
1277
1278 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1279
1280 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1281
1282 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1283 status = &sc->status_list[i];
1284 sbd = &sc->srbd_list[i];
1285 sbuf = sbd->priv;
1286
1287 switch (le16toh(status->code) & 0xf) {
1288 case IPW_STATUS_CODE_COMMAND:
1289 ipw_rx_cmd_intr(sc, sbuf);
1290 break;
1291
1292 case IPW_STATUS_CODE_NEWSTATE:
1293 ipw_rx_newstate_intr(sc, sbuf);
1294 break;
1295
1296 case IPW_STATUS_CODE_DATA_802_3:
1297 case IPW_STATUS_CODE_DATA_802_11:
1298 ipw_rx_data_intr(sc, status, sbd, sbuf);
1299 break;
1300
1301 case IPW_STATUS_CODE_NOTIFICATION:
1302 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1303 le32toh(status->len), status->flags));
1304 /* XXX maybe drive state machine AUTH->ASSOC? */
1305 break;
1306
1307 default:
1308 device_printf(sc->sc_dev, "unexpected status code %u\n",
1309 le16toh(status->code));
1310 }
1311
1312 /* firmware was killed, stop processing received frames */
1313 if (!(sc->flags & IPW_FLAG_FW_INITED))
1314 return;
1315
1316 sbd->bd->flags = 0;
1317 }
1318
1319 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1320
1321 /* kick the firmware */
1322 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1323 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1324}
1325
1326static void
1327ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1328{
1329 struct ipw_soft_hdr *shdr;
1330 struct ipw_soft_buf *sbuf;
1331
1332 switch (sbd->type) {
1333 case IPW_SBD_TYPE_COMMAND:
1334 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1335 BUS_DMASYNC_POSTWRITE);
1336 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1337 break;
1338
1339 case IPW_SBD_TYPE_HEADER:
1340 shdr = sbd->priv;
1341 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1342 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1343 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1344 break;
1345
1346 case IPW_SBD_TYPE_DATA:
1347 sbuf = sbd->priv;
1348 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1349 BUS_DMASYNC_POSTWRITE);
1350 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1351 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1352
1353 if (sbuf->m->m_flags & M_TXCB)
1354 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1355 m_freem(sbuf->m);
1356 ieee80211_free_node(sbuf->ni);
1357
1358 sc->sc_tx_timer = 0;
1359 break;
1360 }
1361
1362 sbd->type = IPW_SBD_TYPE_NOASSOC;
1363}
1364
1365static void
1366ipw_tx_intr(struct ipw_softc *sc)
1367{
1368 struct ifnet *ifp = sc->sc_ifp;
1369 struct ipw_soft_bd *sbd;
1370 uint32_t r, i;
1371
1372 if (!(sc->flags & IPW_FLAG_FW_INITED))
1373 return;
1374
1375 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1376
1377 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1378 sbd = &sc->stbd_list[i];
1379
1380 if (sbd->type == IPW_SBD_TYPE_DATA)
| 1227 return;
1228 }
1229
1230 /*
1231 * New mbuf successfully loaded, update Rx ring and continue
1232 * processing.
1233 */
1234 m = sbuf->m;
1235 sbuf->m = mnew;
1236 sbd->bd->physaddr = htole32(physaddr);
1237
1238 /* finalize mbuf */
1239 m->m_pkthdr.rcvif = ifp;
1240 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1241
1242 rssi = status->rssi + IPW_RSSI_TO_DBM;
1243 nf = -95;
1244 if (ieee80211_radiotap_active(ic)) {
1245 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1246
1247 tap->wr_flags = 0;
1248 tap->wr_antsignal = rssi;
1249 tap->wr_antnoise = nf;
1250 }
1251
1252 if (sc->flags & IPW_FLAG_SCANNING)
1253 ipw_fix_channel(sc, m);
1254
1255 IPW_UNLOCK(sc);
1256 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1257 if (ni != NULL) {
1258 (void) ieee80211_input(ni, m, rssi - nf, nf);
1259 ieee80211_free_node(ni);
1260 } else
1261 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
1262 IPW_LOCK(sc);
1263
1264 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1265}
1266
1267static void
1268ipw_rx_intr(struct ipw_softc *sc)
1269{
1270 struct ipw_status *status;
1271 struct ipw_soft_bd *sbd;
1272 struct ipw_soft_buf *sbuf;
1273 uint32_t r, i;
1274
1275 if (!(sc->flags & IPW_FLAG_FW_INITED))
1276 return;
1277
1278 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1279
1280 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1281
1282 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1283 status = &sc->status_list[i];
1284 sbd = &sc->srbd_list[i];
1285 sbuf = sbd->priv;
1286
1287 switch (le16toh(status->code) & 0xf) {
1288 case IPW_STATUS_CODE_COMMAND:
1289 ipw_rx_cmd_intr(sc, sbuf);
1290 break;
1291
1292 case IPW_STATUS_CODE_NEWSTATE:
1293 ipw_rx_newstate_intr(sc, sbuf);
1294 break;
1295
1296 case IPW_STATUS_CODE_DATA_802_3:
1297 case IPW_STATUS_CODE_DATA_802_11:
1298 ipw_rx_data_intr(sc, status, sbd, sbuf);
1299 break;
1300
1301 case IPW_STATUS_CODE_NOTIFICATION:
1302 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1303 le32toh(status->len), status->flags));
1304 /* XXX maybe drive state machine AUTH->ASSOC? */
1305 break;
1306
1307 default:
1308 device_printf(sc->sc_dev, "unexpected status code %u\n",
1309 le16toh(status->code));
1310 }
1311
1312 /* firmware was killed, stop processing received frames */
1313 if (!(sc->flags & IPW_FLAG_FW_INITED))
1314 return;
1315
1316 sbd->bd->flags = 0;
1317 }
1318
1319 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1320
1321 /* kick the firmware */
1322 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1323 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1324}
1325
1326static void
1327ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1328{
1329 struct ipw_soft_hdr *shdr;
1330 struct ipw_soft_buf *sbuf;
1331
1332 switch (sbd->type) {
1333 case IPW_SBD_TYPE_COMMAND:
1334 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1335 BUS_DMASYNC_POSTWRITE);
1336 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1337 break;
1338
1339 case IPW_SBD_TYPE_HEADER:
1340 shdr = sbd->priv;
1341 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1342 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1343 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1344 break;
1345
1346 case IPW_SBD_TYPE_DATA:
1347 sbuf = sbd->priv;
1348 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1349 BUS_DMASYNC_POSTWRITE);
1350 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1351 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1352
1353 if (sbuf->m->m_flags & M_TXCB)
1354 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1355 m_freem(sbuf->m);
1356 ieee80211_free_node(sbuf->ni);
1357
1358 sc->sc_tx_timer = 0;
1359 break;
1360 }
1361
1362 sbd->type = IPW_SBD_TYPE_NOASSOC;
1363}
1364
1365static void
1366ipw_tx_intr(struct ipw_softc *sc)
1367{
1368 struct ifnet *ifp = sc->sc_ifp;
1369 struct ipw_soft_bd *sbd;
1370 uint32_t r, i;
1371
1372 if (!(sc->flags & IPW_FLAG_FW_INITED))
1373 return;
1374
1375 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1376
1377 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1378 sbd = &sc->stbd_list[i];
1379
1380 if (sbd->type == IPW_SBD_TYPE_DATA)
|
1381 ifp->if_opackets++;
| 1381 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
|
1382
1383 ipw_release_sbd(sc, sbd);
1384 sc->txfree++;
1385 }
1386
1387 /* remember what the firmware has processed */
1388 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1389
1390 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1391 ipw_start_locked(ifp);
1392}
1393
1394static void
1395ipw_fatal_error_intr(struct ipw_softc *sc)
1396{
1397 struct ifnet *ifp = sc->sc_ifp;
1398 struct ieee80211com *ic = ifp->if_l2com;
1399 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1400
1401 device_printf(sc->sc_dev, "firmware error\n");
1402 if (vap != NULL) {
1403 IPW_UNLOCK(sc);
1404 ieee80211_cancel_scan(vap);
1405 IPW_LOCK(sc);
1406 }
1407 ieee80211_runtask(ic, &sc->sc_init_task);
1408}
1409
1410static void
1411ipw_intr(void *arg)
1412{
1413 struct ipw_softc *sc = arg;
1414 uint32_t r;
1415
1416 IPW_LOCK(sc);
1417
1418 r = CSR_READ_4(sc, IPW_CSR_INTR);
1419 if (r == 0 || r == 0xffffffff)
1420 goto done;
1421
1422 /* disable interrupts */
1423 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1424
1425 /* acknowledge all interrupts */
1426 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1427
1428 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1429 ipw_fatal_error_intr(sc);
1430 goto done;
1431 }
1432
1433 if (r & IPW_INTR_FW_INIT_DONE)
1434 wakeup(sc);
1435
1436 if (r & IPW_INTR_RX_TRANSFER)
1437 ipw_rx_intr(sc);
1438
1439 if (r & IPW_INTR_TX_TRANSFER)
1440 ipw_tx_intr(sc);
1441
1442 /* re-enable interrupts */
1443 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1444done:
1445 IPW_UNLOCK(sc);
1446}
1447
1448static void
1449ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1450{
1451 if (error != 0)
1452 return;
1453
1454 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1455
1456 *(bus_addr_t *)arg = segs[0].ds_addr;
1457}
1458
1459static const char *
1460ipw_cmdname(int cmd)
1461{
1462#define N(a) (sizeof(a) / sizeof(a[0]))
1463 static const struct {
1464 int cmd;
1465 const char *name;
1466 } cmds[] = {
1467 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1468 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1469 { IPW_CMD_DISABLE, "DISABLE" },
1470 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1471 { IPW_CMD_ENABLE, "ENABLE" },
1472 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1473 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1474 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1475 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1476 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1477 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1478 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1479 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1480 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1481 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1482 { IPW_CMD_SET_MODE, "SET_MODE" },
1483 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1484 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1485 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1486 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1487 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1488 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1489 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1490 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1491 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1492 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1493 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1494
1495 };
1496 static char buf[12];
1497 int i;
1498
1499 for (i = 0; i < N(cmds); i++)
1500 if (cmds[i].cmd == cmd)
1501 return cmds[i].name;
1502 snprintf(buf, sizeof(buf), "%u", cmd);
1503 return buf;
1504#undef N
1505}
1506
1507/*
1508 * Send a command to the firmware and wait for the acknowledgement.
1509 */
1510static int
1511ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1512{
1513 struct ipw_soft_bd *sbd;
1514 bus_addr_t physaddr;
1515 int error;
1516
1517 IPW_LOCK_ASSERT(sc);
1518
1519 if (sc->flags & IPW_FLAG_BUSY) {
1520 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1521 __func__, ipw_cmdname(type));
1522 return EAGAIN;
1523 }
1524 sc->flags |= IPW_FLAG_BUSY;
1525
1526 sbd = &sc->stbd_list[sc->txcur];
1527
1528 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1529 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1530 if (error != 0) {
1531 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1532 sc->flags &= ~IPW_FLAG_BUSY;
1533 return error;
1534 }
1535
1536 sc->cmd.type = htole32(type);
1537 sc->cmd.subtype = 0;
1538 sc->cmd.len = htole32(len);
1539 sc->cmd.seq = 0;
1540 memcpy(sc->cmd.data, data, len);
1541
1542 sbd->type = IPW_SBD_TYPE_COMMAND;
1543 sbd->bd->physaddr = htole32(physaddr);
1544 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1545 sbd->bd->nfrag = 1;
1546 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1547 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1548
1549 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1550 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1551
1552#ifdef IPW_DEBUG
1553 if (ipw_debug >= 4) {
1554 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1555 0, 0, len);
1556 /* Print the data buffer in the higher debug level */
1557 if (ipw_debug >= 9 && len > 0) {
1558 printf(" data: 0x");
1559 for (int i = 1; i <= len; i++)
1560 printf("%1D", (u_char *)data + len - i, "");
1561 }
1562 printf("\n");
1563 }
1564#endif
1565
1566 /* kick firmware */
1567 sc->txfree--;
1568 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1569 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1570
1571 /* wait at most one second for command to complete */
1572 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1573 if (error != 0) {
1574 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1575 __func__, ipw_cmdname(type), error);
1576 sc->flags &= ~IPW_FLAG_BUSY;
1577 return (error);
1578 }
1579 return (0);
1580}
1581
1582static int
1583ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni)
1584{
1585 struct ipw_softc *sc = ifp->if_softc;
1586 struct ieee80211com *ic = ifp->if_l2com;
1587 struct ieee80211vap *vap = ni->ni_vap;
1588 struct ieee80211_frame *wh;
1589 struct ipw_soft_bd *sbd;
1590 struct ipw_soft_hdr *shdr;
1591 struct ipw_soft_buf *sbuf;
1592 struct ieee80211_key *k;
1593 struct mbuf *mnew;
1594 bus_dma_segment_t segs[IPW_MAX_NSEG];
1595 bus_addr_t physaddr;
1596 int nsegs, error, i;
1597
1598 wh = mtod(m0, struct ieee80211_frame *);
1599
1600 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1601 k = ieee80211_crypto_encap(ni, m0);
1602 if (k == NULL) {
1603 m_freem(m0);
1604 return ENOBUFS;
1605 }
1606 /* packet header may have moved, reset our local pointer */
1607 wh = mtod(m0, struct ieee80211_frame *);
1608 }
1609
1610 if (ieee80211_radiotap_active_vap(vap)) {
1611 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1612
1613 tap->wt_flags = 0;
1614
1615 ieee80211_radiotap_tx(vap, m0);
1616 }
1617
1618 shdr = SLIST_FIRST(&sc->free_shdr);
1619 sbuf = SLIST_FIRST(&sc->free_sbuf);
1620 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1621
1622 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1623 shdr->hdr.subtype = 0;
1624 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0;
1625 shdr->hdr.encrypt = 0;
1626 shdr->hdr.keyidx = 0;
1627 shdr->hdr.keysz = 0;
1628 shdr->hdr.fragmentsz = 0;
1629 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1630 if (ic->ic_opmode == IEEE80211_M_STA)
1631 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1632 else
1633 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1634
1635 /* trim IEEE802.11 header */
1636 m_adj(m0, sizeof (struct ieee80211_frame));
1637
1638 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1639 &nsegs, 0);
1640 if (error != 0 && error != EFBIG) {
1641 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1642 error);
1643 m_freem(m0);
1644 return error;
1645 }
1646 if (error != 0) {
1647 mnew = m_defrag(m0, M_NOWAIT);
1648 if (mnew == NULL) {
1649 device_printf(sc->sc_dev,
1650 "could not defragment mbuf\n");
1651 m_freem(m0);
1652 return ENOBUFS;
1653 }
1654 m0 = mnew;
1655
1656 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1657 segs, &nsegs, 0);
1658 if (error != 0) {
1659 device_printf(sc->sc_dev,
1660 "could not map mbuf (error %d)\n", error);
1661 m_freem(m0);
1662 return error;
1663 }
1664 }
1665
1666 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1667 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1668 if (error != 0) {
1669 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1670 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1671 m_freem(m0);
1672 return error;
1673 }
1674
1675 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1676 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1677
1678 sbd = &sc->stbd_list[sc->txcur];
1679 sbd->type = IPW_SBD_TYPE_HEADER;
1680 sbd->priv = shdr;
1681 sbd->bd->physaddr = htole32(physaddr);
1682 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1683 sbd->bd->nfrag = 1 + nsegs;
1684 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1685 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1686
1687 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1688 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1689 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1690 ":"));
1691
1692 sc->txfree--;
1693 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1694
1695 sbuf->m = m0;
1696 sbuf->ni = ni;
1697
1698 for (i = 0; i < nsegs; i++) {
1699 sbd = &sc->stbd_list[sc->txcur];
1700
1701 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1702 sbd->bd->len = htole32(segs[i].ds_len);
1703 sbd->bd->nfrag = 0;
1704 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1705 if (i == nsegs - 1) {
1706 sbd->type = IPW_SBD_TYPE_DATA;
1707 sbd->priv = sbuf;
1708 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1709 } else {
1710 sbd->type = IPW_SBD_TYPE_NOASSOC;
1711 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1712 }
1713
1714 DPRINTFN(5, ("sending fragment (%d)\n", i));
1715
1716 sc->txfree--;
1717 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1718 }
1719
1720 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1721 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1722 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1723
1724 /* kick firmware */
1725 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1726
1727 return 0;
1728}
1729
1730static int
1731ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1732 const struct ieee80211_bpf_params *params)
1733{
1734 /* no support; just discard */
1735 m_freem(m);
1736 ieee80211_free_node(ni);
1737 return 0;
1738}
1739
1740static void
1741ipw_start(struct ifnet *ifp)
1742{
1743 struct ipw_softc *sc = ifp->if_softc;
1744
1745 IPW_LOCK(sc);
1746 ipw_start_locked(ifp);
1747 IPW_UNLOCK(sc);
1748}
1749
1750static void
1751ipw_start_locked(struct ifnet *ifp)
1752{
1753 struct ipw_softc *sc = ifp->if_softc;
1754 struct ieee80211_node *ni;
1755 struct mbuf *m;
1756
1757 IPW_LOCK_ASSERT(sc);
1758
1759 for (;;) {
1760 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1761 if (m == NULL)
1762 break;
1763 if (sc->txfree < 1 + IPW_MAX_NSEG) {
1764 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1765 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1766 break;
1767 }
1768 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1769 if (ipw_tx_start(ifp, m, ni) != 0) {
1770 ieee80211_free_node(ni);
| 1382
1383 ipw_release_sbd(sc, sbd);
1384 sc->txfree++;
1385 }
1386
1387 /* remember what the firmware has processed */
1388 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1389
1390 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1391 ipw_start_locked(ifp);
1392}
1393
1394static void
1395ipw_fatal_error_intr(struct ipw_softc *sc)
1396{
1397 struct ifnet *ifp = sc->sc_ifp;
1398 struct ieee80211com *ic = ifp->if_l2com;
1399 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1400
1401 device_printf(sc->sc_dev, "firmware error\n");
1402 if (vap != NULL) {
1403 IPW_UNLOCK(sc);
1404 ieee80211_cancel_scan(vap);
1405 IPW_LOCK(sc);
1406 }
1407 ieee80211_runtask(ic, &sc->sc_init_task);
1408}
1409
1410static void
1411ipw_intr(void *arg)
1412{
1413 struct ipw_softc *sc = arg;
1414 uint32_t r;
1415
1416 IPW_LOCK(sc);
1417
1418 r = CSR_READ_4(sc, IPW_CSR_INTR);
1419 if (r == 0 || r == 0xffffffff)
1420 goto done;
1421
1422 /* disable interrupts */
1423 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1424
1425 /* acknowledge all interrupts */
1426 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1427
1428 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1429 ipw_fatal_error_intr(sc);
1430 goto done;
1431 }
1432
1433 if (r & IPW_INTR_FW_INIT_DONE)
1434 wakeup(sc);
1435
1436 if (r & IPW_INTR_RX_TRANSFER)
1437 ipw_rx_intr(sc);
1438
1439 if (r & IPW_INTR_TX_TRANSFER)
1440 ipw_tx_intr(sc);
1441
1442 /* re-enable interrupts */
1443 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1444done:
1445 IPW_UNLOCK(sc);
1446}
1447
1448static void
1449ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1450{
1451 if (error != 0)
1452 return;
1453
1454 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1455
1456 *(bus_addr_t *)arg = segs[0].ds_addr;
1457}
1458
1459static const char *
1460ipw_cmdname(int cmd)
1461{
1462#define N(a) (sizeof(a) / sizeof(a[0]))
1463 static const struct {
1464 int cmd;
1465 const char *name;
1466 } cmds[] = {
1467 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1468 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1469 { IPW_CMD_DISABLE, "DISABLE" },
1470 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1471 { IPW_CMD_ENABLE, "ENABLE" },
1472 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1473 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1474 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1475 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1476 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1477 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1478 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1479 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1480 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1481 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1482 { IPW_CMD_SET_MODE, "SET_MODE" },
1483 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1484 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1485 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1486 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1487 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1488 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1489 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1490 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1491 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1492 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1493 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1494
1495 };
1496 static char buf[12];
1497 int i;
1498
1499 for (i = 0; i < N(cmds); i++)
1500 if (cmds[i].cmd == cmd)
1501 return cmds[i].name;
1502 snprintf(buf, sizeof(buf), "%u", cmd);
1503 return buf;
1504#undef N
1505}
1506
1507/*
1508 * Send a command to the firmware and wait for the acknowledgement.
1509 */
1510static int
1511ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1512{
1513 struct ipw_soft_bd *sbd;
1514 bus_addr_t physaddr;
1515 int error;
1516
1517 IPW_LOCK_ASSERT(sc);
1518
1519 if (sc->flags & IPW_FLAG_BUSY) {
1520 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1521 __func__, ipw_cmdname(type));
1522 return EAGAIN;
1523 }
1524 sc->flags |= IPW_FLAG_BUSY;
1525
1526 sbd = &sc->stbd_list[sc->txcur];
1527
1528 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1529 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1530 if (error != 0) {
1531 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1532 sc->flags &= ~IPW_FLAG_BUSY;
1533 return error;
1534 }
1535
1536 sc->cmd.type = htole32(type);
1537 sc->cmd.subtype = 0;
1538 sc->cmd.len = htole32(len);
1539 sc->cmd.seq = 0;
1540 memcpy(sc->cmd.data, data, len);
1541
1542 sbd->type = IPW_SBD_TYPE_COMMAND;
1543 sbd->bd->physaddr = htole32(physaddr);
1544 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1545 sbd->bd->nfrag = 1;
1546 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1547 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1548
1549 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1550 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1551
1552#ifdef IPW_DEBUG
1553 if (ipw_debug >= 4) {
1554 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1555 0, 0, len);
1556 /* Print the data buffer in the higher debug level */
1557 if (ipw_debug >= 9 && len > 0) {
1558 printf(" data: 0x");
1559 for (int i = 1; i <= len; i++)
1560 printf("%1D", (u_char *)data + len - i, "");
1561 }
1562 printf("\n");
1563 }
1564#endif
1565
1566 /* kick firmware */
1567 sc->txfree--;
1568 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1569 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1570
1571 /* wait at most one second for command to complete */
1572 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1573 if (error != 0) {
1574 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1575 __func__, ipw_cmdname(type), error);
1576 sc->flags &= ~IPW_FLAG_BUSY;
1577 return (error);
1578 }
1579 return (0);
1580}
1581
1582static int
1583ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni)
1584{
1585 struct ipw_softc *sc = ifp->if_softc;
1586 struct ieee80211com *ic = ifp->if_l2com;
1587 struct ieee80211vap *vap = ni->ni_vap;
1588 struct ieee80211_frame *wh;
1589 struct ipw_soft_bd *sbd;
1590 struct ipw_soft_hdr *shdr;
1591 struct ipw_soft_buf *sbuf;
1592 struct ieee80211_key *k;
1593 struct mbuf *mnew;
1594 bus_dma_segment_t segs[IPW_MAX_NSEG];
1595 bus_addr_t physaddr;
1596 int nsegs, error, i;
1597
1598 wh = mtod(m0, struct ieee80211_frame *);
1599
1600 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1601 k = ieee80211_crypto_encap(ni, m0);
1602 if (k == NULL) {
1603 m_freem(m0);
1604 return ENOBUFS;
1605 }
1606 /* packet header may have moved, reset our local pointer */
1607 wh = mtod(m0, struct ieee80211_frame *);
1608 }
1609
1610 if (ieee80211_radiotap_active_vap(vap)) {
1611 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1612
1613 tap->wt_flags = 0;
1614
1615 ieee80211_radiotap_tx(vap, m0);
1616 }
1617
1618 shdr = SLIST_FIRST(&sc->free_shdr);
1619 sbuf = SLIST_FIRST(&sc->free_sbuf);
1620 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1621
1622 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1623 shdr->hdr.subtype = 0;
1624 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0;
1625 shdr->hdr.encrypt = 0;
1626 shdr->hdr.keyidx = 0;
1627 shdr->hdr.keysz = 0;
1628 shdr->hdr.fragmentsz = 0;
1629 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1630 if (ic->ic_opmode == IEEE80211_M_STA)
1631 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1632 else
1633 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1634
1635 /* trim IEEE802.11 header */
1636 m_adj(m0, sizeof (struct ieee80211_frame));
1637
1638 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1639 &nsegs, 0);
1640 if (error != 0 && error != EFBIG) {
1641 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1642 error);
1643 m_freem(m0);
1644 return error;
1645 }
1646 if (error != 0) {
1647 mnew = m_defrag(m0, M_NOWAIT);
1648 if (mnew == NULL) {
1649 device_printf(sc->sc_dev,
1650 "could not defragment mbuf\n");
1651 m_freem(m0);
1652 return ENOBUFS;
1653 }
1654 m0 = mnew;
1655
1656 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1657 segs, &nsegs, 0);
1658 if (error != 0) {
1659 device_printf(sc->sc_dev,
1660 "could not map mbuf (error %d)\n", error);
1661 m_freem(m0);
1662 return error;
1663 }
1664 }
1665
1666 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1667 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1668 if (error != 0) {
1669 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1670 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1671 m_freem(m0);
1672 return error;
1673 }
1674
1675 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1676 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1677
1678 sbd = &sc->stbd_list[sc->txcur];
1679 sbd->type = IPW_SBD_TYPE_HEADER;
1680 sbd->priv = shdr;
1681 sbd->bd->physaddr = htole32(physaddr);
1682 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1683 sbd->bd->nfrag = 1 + nsegs;
1684 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1685 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1686
1687 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1688 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1689 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1690 ":"));
1691
1692 sc->txfree--;
1693 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1694
1695 sbuf->m = m0;
1696 sbuf->ni = ni;
1697
1698 for (i = 0; i < nsegs; i++) {
1699 sbd = &sc->stbd_list[sc->txcur];
1700
1701 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1702 sbd->bd->len = htole32(segs[i].ds_len);
1703 sbd->bd->nfrag = 0;
1704 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1705 if (i == nsegs - 1) {
1706 sbd->type = IPW_SBD_TYPE_DATA;
1707 sbd->priv = sbuf;
1708 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1709 } else {
1710 sbd->type = IPW_SBD_TYPE_NOASSOC;
1711 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1712 }
1713
1714 DPRINTFN(5, ("sending fragment (%d)\n", i));
1715
1716 sc->txfree--;
1717 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1718 }
1719
1720 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1721 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1722 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1723
1724 /* kick firmware */
1725 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1726
1727 return 0;
1728}
1729
1730static int
1731ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1732 const struct ieee80211_bpf_params *params)
1733{
1734 /* no support; just discard */
1735 m_freem(m);
1736 ieee80211_free_node(ni);
1737 return 0;
1738}
1739
1740static void
1741ipw_start(struct ifnet *ifp)
1742{
1743 struct ipw_softc *sc = ifp->if_softc;
1744
1745 IPW_LOCK(sc);
1746 ipw_start_locked(ifp);
1747 IPW_UNLOCK(sc);
1748}
1749
1750static void
1751ipw_start_locked(struct ifnet *ifp)
1752{
1753 struct ipw_softc *sc = ifp->if_softc;
1754 struct ieee80211_node *ni;
1755 struct mbuf *m;
1756
1757 IPW_LOCK_ASSERT(sc);
1758
1759 for (;;) {
1760 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1761 if (m == NULL)
1762 break;
1763 if (sc->txfree < 1 + IPW_MAX_NSEG) {
1764 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1765 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1766 break;
1767 }
1768 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1769 if (ipw_tx_start(ifp, m, ni) != 0) {
1770 ieee80211_free_node(ni);
|
1771 ifp->if_oerrors++;
| 1771 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
|
1772 break;
1773 }
1774 /* start watchdog timer */
1775 sc->sc_tx_timer = 5;
1776 }
1777}
1778
1779static void
1780ipw_watchdog(void *arg)
1781{
1782 struct ipw_softc *sc = arg;
1783 struct ifnet *ifp = sc->sc_ifp;
1784 struct ieee80211com *ic = ifp->if_l2com;
1785
1786 IPW_LOCK_ASSERT(sc);
1787
1788 if (sc->sc_tx_timer > 0) {
1789 if (--sc->sc_tx_timer == 0) {
1790 if_printf(ifp, "device timeout\n");
| 1772 break;
1773 }
1774 /* start watchdog timer */
1775 sc->sc_tx_timer = 5;
1776 }
1777}
1778
1779static void
1780ipw_watchdog(void *arg)
1781{
1782 struct ipw_softc *sc = arg;
1783 struct ifnet *ifp = sc->sc_ifp;
1784 struct ieee80211com *ic = ifp->if_l2com;
1785
1786 IPW_LOCK_ASSERT(sc);
1787
1788 if (sc->sc_tx_timer > 0) {
1789 if (--sc->sc_tx_timer == 0) {
1790 if_printf(ifp, "device timeout\n");
|
1791 ifp->if_oerrors++;
| 1791 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
|
1792 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1793 }
1794 }
1795 if (sc->sc_scan_timer > 0) {
1796 if (--sc->sc_scan_timer == 0) {
1797 DPRINTFN(3, ("Scan timeout\n"));
1798 /* End the scan */
1799 if (sc->flags & IPW_FLAG_SCANNING) {
1800 IPW_UNLOCK(sc);
1801 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1802 IPW_LOCK(sc);
1803 sc->flags &= ~IPW_FLAG_SCANNING;
1804 }
1805 }
1806 }
1807 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1808 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1809}
1810
1811static int
1812ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1813{
1814 struct ipw_softc *sc = ifp->if_softc;
1815 struct ieee80211com *ic = ifp->if_l2com;
1816 struct ifreq *ifr = (struct ifreq *) data;
1817 int error = 0, startall = 0;
1818
1819 switch (cmd) {
1820 case SIOCSIFFLAGS:
1821 IPW_LOCK(sc);
1822 if (ifp->if_flags & IFF_UP) {
1823 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1824 ipw_init_locked(sc);
1825 startall = 1;
1826 }
1827 } else {
1828 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1829 ipw_stop_locked(sc);
1830 }
1831 IPW_UNLOCK(sc);
1832 if (startall)
1833 ieee80211_start_all(ic);
1834 break;
1835 case SIOCGIFMEDIA:
1836 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1837 break;
1838 case SIOCGIFADDR:
1839 error = ether_ioctl(ifp, cmd, data);
1840 break;
1841 default:
1842 error = EINVAL;
1843 break;
1844 }
1845 return error;
1846}
1847
1848static void
1849ipw_stop_master(struct ipw_softc *sc)
1850{
1851 uint32_t tmp;
1852 int ntries;
1853
1854 /* disable interrupts */
1855 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1856
1857 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1858 for (ntries = 0; ntries < 50; ntries++) {
1859 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1860 break;
1861 DELAY(10);
1862 }
1863 if (ntries == 50)
1864 device_printf(sc->sc_dev, "timeout waiting for master\n");
1865
1866 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1867 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1868
1869 /* Clear all flags except the following */
1870 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1871}
1872
1873static int
1874ipw_reset(struct ipw_softc *sc)
1875{
1876 uint32_t tmp;
1877 int ntries;
1878
1879 ipw_stop_master(sc);
1880
1881 /* move adapter to D0 state */
1882 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1883 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1884
1885 /* wait for clock stabilization */
1886 for (ntries = 0; ntries < 1000; ntries++) {
1887 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1888 break;
1889 DELAY(200);
1890 }
1891 if (ntries == 1000)
1892 return EIO;
1893
1894 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1895 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1896
1897 DELAY(10);
1898
1899 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1900 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1901
1902 return 0;
1903}
1904
1905static int
1906ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1907{
1908 int ms = hz < 1000 ? 1 : hz/10;
1909 int i, error;
1910
1911 for (i = 0; i < 100; i++) {
1912 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1913 return 0;
1914 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1915 if (error == 0 || error != EWOULDBLOCK)
1916 return 0;
1917 }
1918 DPRINTF(("%s: timeout waiting for %s\n",
1919 __func__, waitfor ? "disable" : "enable"));
1920 return ETIMEDOUT;
1921}
1922
1923static int
1924ipw_enable(struct ipw_softc *sc)
1925{
1926 int error;
1927
1928 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1929 DPRINTF(("Enable adapter\n"));
1930 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1931 if (error != 0)
1932 return error;
1933 error = ipw_waitfordisable(sc, 0);
1934 if (error != 0)
1935 return error;
1936 sc->flags |= IPW_FLAG_ENABLED;
1937 }
1938 return 0;
1939}
1940
1941static int
1942ipw_disable(struct ipw_softc *sc)
1943{
1944 int error;
1945
1946 if (sc->flags & IPW_FLAG_ENABLED) {
1947 DPRINTF(("Disable adapter\n"));
1948 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1949 if (error != 0)
1950 return error;
1951 error = ipw_waitfordisable(sc, 1);
1952 if (error != 0)
1953 return error;
1954 sc->flags &= ~IPW_FLAG_ENABLED;
1955 }
1956 return 0;
1957}
1958
1959/*
1960 * Upload the microcode to the device.
1961 */
1962static int
1963ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1964{
1965 int ntries;
1966
1967 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1968 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1969
1970 MEM_WRITE_2(sc, 0x220000, 0x0703);
1971 MEM_WRITE_2(sc, 0x220000, 0x0707);
1972
1973 MEM_WRITE_1(sc, 0x210014, 0x72);
1974 MEM_WRITE_1(sc, 0x210014, 0x72);
1975
1976 MEM_WRITE_1(sc, 0x210000, 0x40);
1977 MEM_WRITE_1(sc, 0x210000, 0x00);
1978 MEM_WRITE_1(sc, 0x210000, 0x40);
1979
1980 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
1981
1982 MEM_WRITE_1(sc, 0x210000, 0x00);
1983 MEM_WRITE_1(sc, 0x210000, 0x00);
1984 MEM_WRITE_1(sc, 0x210000, 0x80);
1985
1986 MEM_WRITE_2(sc, 0x220000, 0x0703);
1987 MEM_WRITE_2(sc, 0x220000, 0x0707);
1988
1989 MEM_WRITE_1(sc, 0x210014, 0x72);
1990 MEM_WRITE_1(sc, 0x210014, 0x72);
1991
1992 MEM_WRITE_1(sc, 0x210000, 0x00);
1993 MEM_WRITE_1(sc, 0x210000, 0x80);
1994
1995 for (ntries = 0; ntries < 10; ntries++) {
1996 if (MEM_READ_1(sc, 0x210000) & 1)
1997 break;
1998 DELAY(10);
1999 }
2000 if (ntries == 10) {
2001 device_printf(sc->sc_dev,
2002 "timeout waiting for ucode to initialize\n");
2003 return EIO;
2004 }
2005
2006 MEM_WRITE_4(sc, 0x3000e0, 0);
2007
2008 return 0;
2009}
2010
2011/* set of macros to handle unaligned little endian data in firmware image */
2012#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2013#define GETLE16(p) ((p)[0] | (p)[1] << 8)
2014static int
2015ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
2016{
2017 const uint8_t *p, *end;
2018 uint32_t tmp, dst;
2019 uint16_t len;
2020 int error;
2021
2022 p = fw;
2023 end = fw + size;
2024 while (p < end) {
2025 dst = GETLE32(p); p += 4;
2026 len = GETLE16(p); p += 2;
2027
2028 ipw_write_mem_1(sc, dst, p, len);
2029 p += len;
2030 }
2031
2032 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
2033 IPW_IO_LED_OFF);
2034
2035 /* enable interrupts */
2036 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
2037
2038 /* kick the firmware */
2039 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2040
2041 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
2042 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
2043
2044 /* wait at most one second for firmware initialization to complete */
2045 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
2046 device_printf(sc->sc_dev, "timeout waiting for firmware "
2047 "initialization to complete\n");
2048 return error;
2049 }
2050
2051 tmp = CSR_READ_4(sc, IPW_CSR_IO);
2052 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2053 IPW_IO_GPIO3_MASK);
2054
2055 return 0;
2056}
2057
2058static int
2059ipw_setwepkeys(struct ipw_softc *sc)
2060{
2061 struct ifnet *ifp = sc->sc_ifp;
2062 struct ieee80211com *ic = ifp->if_l2com;
2063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2064 struct ipw_wep_key wepkey;
2065 struct ieee80211_key *wk;
2066 int error, i;
2067
2068 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2069 wk = &vap->iv_nw_keys[i];
2070
2071 if (wk->wk_cipher == NULL ||
2072 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2073 continue;
2074
2075 wepkey.idx = i;
2076 wepkey.len = wk->wk_keylen;
2077 memset(wepkey.key, 0, sizeof wepkey.key);
2078 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2079 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2080 wepkey.len));
2081 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2082 sizeof wepkey);
2083 if (error != 0)
2084 return error;
2085 }
2086 return 0;
2087}
2088
2089static int
2090ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2091{
2092 struct ipw_wpa_ie wpaie;
2093
2094 memset(&wpaie, 0, sizeof(wpaie));
2095 wpaie.len = htole32(ielen);
2096 /* XXX verify length */
2097 memcpy(&wpaie.ie, ie, ielen);
2098 DPRINTF(("Setting WPA IE\n"));
2099 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2100}
2101
2102static int
2103ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2104{
2105 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2106
2107 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2108 DPRINTF(("Setting mandatory BSSID to null\n"));
2109 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2110 } else {
2111 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2112 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2113 bssid, IEEE80211_ADDR_LEN);
2114 }
2115}
2116
2117static int
2118ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2119{
2120 if (ssidlen == 0) {
2121 /*
2122 * A bug in the firmware breaks the ``don't associate''
2123 * bit in the scan options command. To compensate for
2124 * this install a bogus ssid when no ssid is specified
2125 * so the firmware won't try to associate.
2126 */
2127 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2128 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2129 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2130 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2131 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2132 "\x3c\x3d", IEEE80211_NWID_LEN);
2133 } else {
2134#ifdef IPW_DEBUG
2135 if (ipw_debug > 0) {
2136 printf("Setting ESSID to ");
2137 ieee80211_print_essid(ssid, ssidlen);
2138 printf("\n");
2139 }
2140#endif
2141 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2142 }
2143}
2144
2145static int
2146ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2147{
2148 struct ipw_scan_options opts;
2149
2150 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2151 opts.channels = htole32(chanmask);
2152 opts.flags = htole32(flags);
2153 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2154}
2155
2156static int
2157ipw_scan(struct ipw_softc *sc)
2158{
2159 uint32_t params;
2160 int error;
2161
2162 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2163
2164 if (sc->flags & IPW_FLAG_SCANNING)
2165 return (EBUSY);
2166 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2167
2168 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2169 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2170 if (error != 0)
2171 goto done;
2172
2173 /*
2174 * Setup null/bogus ssid so firmware doesn't use any previous
2175 * ssid to try and associate. This is because the ``don't
2176 * associate'' option bit is broken (sigh).
2177 */
2178 error = ipw_setssid(sc, NULL, 0);
2179 if (error != 0)
2180 goto done;
2181
2182 /*
2183 * NB: the adapter may be disabled on association lost;
2184 * if so just re-enable it to kick off scanning.
2185 */
2186 DPRINTF(("Starting scan\n"));
2187 sc->sc_scan_timer = 3;
2188 if (sc->flags & IPW_FLAG_ENABLED) {
2189 params = 0; /* XXX? */
2190 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2191 ¶ms, sizeof(params));
2192 } else
2193 error = ipw_enable(sc);
2194done:
2195 if (error != 0) {
2196 DPRINTF(("Scan failed\n"));
2197 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2198 }
2199 return (error);
2200}
2201
2202static int
2203ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2204{
2205 struct ifnet *ifp = sc->sc_ifp;
2206 struct ieee80211com *ic = ifp->if_l2com;
2207 uint32_t data;
2208 int error;
2209
2210 data = htole32(ieee80211_chan2ieee(ic, chan));
2211 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2212 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2213 if (error == 0)
2214 ipw_setcurchan(sc, chan);
2215 return error;
2216}
2217
2218static void
2219ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2220{
2221 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2222 struct ipw_softc *sc = ifp->if_softc;
2223 struct ieee80211_node *ni = vap->iv_bss;
2224 struct ipw_security security;
2225 uint32_t data;
2226 int error;
2227
2228 IPW_LOCK(sc);
2229 error = ipw_disable(sc);
2230 if (error != 0)
2231 goto done;
2232
2233 memset(&security, 0, sizeof security);
2234 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2235 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2236 security.ciphers = htole32(IPW_CIPHER_NONE);
2237 DPRINTF(("Setting authmode to %u\n", security.authmode));
2238 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2239 sizeof security);
2240 if (error != 0)
2241 goto done;
2242
2243 data = htole32(vap->iv_rtsthreshold);
2244 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2245 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2246 if (error != 0)
2247 goto done;
2248
2249 data = htole32(vap->iv_fragthreshold);
2250 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2251 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2252 if (error != 0)
2253 goto done;
2254
2255 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2256 error = ipw_setwepkeys(sc);
2257 if (error != 0)
2258 goto done;
2259
2260 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2261 data = htole32(vap->iv_def_txkey);
2262 DPRINTF(("Setting wep tx key index to %u\n",
2263 le32toh(data)));
2264 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2265 sizeof data);
2266 if (error != 0)
2267 goto done;
2268 }
2269 }
2270
2271 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2272 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2273 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2274 if (error != 0)
2275 goto done;
2276
2277 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2278 if (error != 0)
2279 goto done;
2280
2281 error = ipw_setbssid(sc, ni->ni_bssid);
2282 if (error != 0)
2283 goto done;
2284
2285 if (vap->iv_appie_wpa != NULL) {
2286 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2287 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2288 if (error != 0)
2289 goto done;
2290 }
2291 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2292 error = ipw_setchannel(sc, ni->ni_chan);
2293 if (error != 0)
2294 goto done;
2295 }
2296
2297 /* lock scan to ap's channel and enable associate */
2298 error = ipw_setscanopts(sc,
2299 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2300 if (error != 0)
2301 goto done;
2302
2303 error = ipw_enable(sc); /* finally, enable adapter */
2304 if (error == 0)
2305 sc->flags |= IPW_FLAG_ASSOCIATING;
2306done:
2307 IPW_UNLOCK(sc);
2308}
2309
2310static void
2311ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2312{
2313 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2314 struct ieee80211_node *ni = vap->iv_bss;
2315 struct ipw_softc *sc = ifp->if_softc;
2316
2317 IPW_LOCK(sc);
2318 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2319 /*
2320 * NB: don't try to do this if ipw_stop_master has
2321 * shutdown the firmware and disabled interrupts.
2322 */
2323 if (sc->flags & IPW_FLAG_FW_INITED) {
2324 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2325 /*
2326 * NB: firmware currently ignores bssid parameter, but
2327 * supply it in case this changes (follow linux driver).
2328 */
2329 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2330 ni->ni_bssid, IEEE80211_ADDR_LEN);
2331 }
2332 IPW_UNLOCK(sc);
2333}
2334
2335/*
2336 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2337 * It is called on firmware panics or on watchdog timeouts.
2338 */
2339static void
2340ipw_init_task(void *context, int pending)
2341{
2342 ipw_init(context);
2343}
2344
2345static void
2346ipw_init(void *priv)
2347{
2348 struct ipw_softc *sc = priv;
2349 struct ifnet *ifp = sc->sc_ifp;
2350 struct ieee80211com *ic = ifp->if_l2com;
2351
2352 IPW_LOCK(sc);
2353 ipw_init_locked(sc);
2354 IPW_UNLOCK(sc);
2355
2356 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2357 ieee80211_start_all(ic); /* start all vap's */
2358}
2359
2360static void
2361ipw_init_locked(struct ipw_softc *sc)
2362{
2363 struct ifnet *ifp = sc->sc_ifp;
2364 struct ieee80211com *ic = ifp->if_l2com;
2365 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2366 const struct firmware *fp;
2367 const struct ipw_firmware_hdr *hdr;
2368 const char *fw;
2369
2370 IPW_LOCK_ASSERT(sc);
2371
2372 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2373 ieee80211_state_name[vap->iv_state], sc->flags));
2374
2375 /*
2376 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2377 * when loading the firmware and we don't want to be called during this
2378 * operation.
2379 */
2380 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2381 return;
2382 sc->flags |= IPW_FLAG_INIT_LOCKED;
2383
2384 ipw_stop_locked(sc);
2385
2386 if (ipw_reset(sc) != 0) {
2387 device_printf(sc->sc_dev, "could not reset adapter\n");
2388 goto fail;
2389 }
2390
2391 if (sc->sc_firmware == NULL) {
2392 device_printf(sc->sc_dev, "no firmware\n");
2393 goto fail;
2394 }
2395 /* NB: consistency already checked on load */
2396 fp = sc->sc_firmware;
2397 hdr = (const struct ipw_firmware_hdr *)fp->data;
2398
2399 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2400 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2401 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2402 device_printf(sc->sc_dev, "could not load microcode\n");
2403 goto fail;
2404 }
2405
2406 ipw_stop_master(sc);
2407
2408 /*
2409 * Setup tx, rx and status rings.
2410 */
2411 sc->txold = IPW_NTBD - 1;
2412 sc->txcur = 0;
2413 sc->txfree = IPW_NTBD - 2;
2414 sc->rxcur = IPW_NRBD - 1;
2415
2416 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2417 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2418 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2419 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2420
2421 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2422 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2423 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2424 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2425
2426 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2427
2428 fw = (const char *)fp->data + sizeof *hdr;
2429 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2430 device_printf(sc->sc_dev, "could not load firmware\n");
2431 goto fail;
2432 }
2433
2434 sc->flags |= IPW_FLAG_FW_INITED;
2435
2436 /* retrieve information tables base addresses */
2437 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2438 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2439
2440 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2441
2442 if (ipw_config(sc) != 0) {
2443 device_printf(sc->sc_dev, "device configuration failed\n");
2444 goto fail;
2445 }
2446
2447 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2448 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2449 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2450
2451 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2452 return;
2453
2454fail:
2455 ipw_stop_locked(sc);
2456 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2457}
2458
2459static int
2460ipw_config(struct ipw_softc *sc)
2461{
2462 struct ifnet *ifp = sc->sc_ifp;
2463 struct ieee80211com *ic = ifp->if_l2com;
2464 struct ipw_configuration config;
2465 uint32_t data;
2466 int error;
2467
2468 error = ipw_disable(sc);
2469 if (error != 0)
2470 return error;
2471
2472 switch (ic->ic_opmode) {
2473 case IEEE80211_M_STA:
2474 case IEEE80211_M_HOSTAP:
2475 case IEEE80211_M_WDS: /* XXX */
2476 data = htole32(IPW_MODE_BSS);
2477 break;
2478 case IEEE80211_M_IBSS:
2479 case IEEE80211_M_AHDEMO:
2480 data = htole32(IPW_MODE_IBSS);
2481 break;
2482 case IEEE80211_M_MONITOR:
2483 data = htole32(IPW_MODE_MONITOR);
2484 break;
2485 default:
2486 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2487 return EINVAL;
2488 }
2489 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2490 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2491 if (error != 0)
2492 return error;
2493
2494 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2495 ic->ic_opmode == IEEE80211_M_MONITOR) {
2496 error = ipw_setchannel(sc, ic->ic_curchan);
2497 if (error != 0)
2498 return error;
2499 }
2500
2501 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2502 return ipw_enable(sc);
2503
2504 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2505 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2506 if (ic->ic_opmode == IEEE80211_M_IBSS)
2507 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2508 if (ifp->if_flags & IFF_PROMISC)
2509 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2510 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2511 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2512 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2513 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2514 if (error != 0)
2515 return error;
2516
2517 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2518 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2519 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2520 if (error != 0)
2521 return error;
2522
2523 /* Use the same rate set */
2524 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2525 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2526 if (error != 0)
2527 return error;
2528
2529 /* Use the same rate set */
2530 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2531 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2532 if (error != 0)
2533 return error;
2534
2535 data = htole32(IPW_POWER_MODE_CAM);
2536 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2537 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2538 if (error != 0)
2539 return error;
2540
2541 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2542 data = htole32(32); /* default value */
2543 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2544 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2545 sizeof data);
2546 if (error != 0)
2547 return error;
2548 }
2549
2550 return 0;
2551}
2552
2553static void
2554ipw_stop(void *priv)
2555{
2556 struct ipw_softc *sc = priv;
2557
2558 IPW_LOCK(sc);
2559 ipw_stop_locked(sc);
2560 IPW_UNLOCK(sc);
2561}
2562
2563static void
2564ipw_stop_locked(struct ipw_softc *sc)
2565{
2566 struct ifnet *ifp = sc->sc_ifp;
2567 int i;
2568
2569 IPW_LOCK_ASSERT(sc);
2570
2571 callout_stop(&sc->sc_wdtimer);
2572 ipw_stop_master(sc);
2573
2574 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2575
2576 /*
2577 * Release tx buffers.
2578 */
2579 for (i = 0; i < IPW_NTBD; i++)
2580 ipw_release_sbd(sc, &sc->stbd_list[i]);
2581
2582 sc->sc_tx_timer = 0;
2583 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2584}
2585
2586static int
2587ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2588{
2589 struct ipw_softc *sc = arg1;
2590 uint32_t i, size, buf[256];
2591
2592 memset(buf, 0, sizeof buf);
2593
2594 if (!(sc->flags & IPW_FLAG_FW_INITED))
2595 return SYSCTL_OUT(req, buf, sizeof buf);
2596
2597 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2598
2599 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2600 for (i = 1; i < size; i++)
2601 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2602
2603 return SYSCTL_OUT(req, buf, size);
2604}
2605
2606static int
2607ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2608{
2609 struct ipw_softc *sc = arg1;
2610 int val;
2611
2612 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2613 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2614
2615 return SYSCTL_OUT(req, &val, sizeof val);
2616}
2617
2618static uint32_t
2619ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2620{
2621 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2622}
2623
2624static void
2625ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2626{
2627 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2628}
2629
2630#if 0
2631static int
2632ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2633{
2634 uint32_t addr, info;
2635 uint16_t count, size;
2636 uint32_t total;
2637
2638 /* addr[4] + count[2] + size[2] */
2639 addr = MEM_READ_4(sc, sc->table2_base + off);
2640 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2641
2642 count = info >> 16;
2643 size = info & 0xffff;
2644 total = count * size;
2645
2646 if (total > *len) {
2647 *len = total;
2648 return EINVAL;
2649 }
2650
2651 *len = total;
2652 ipw_read_mem_1(sc, addr, buf, total);
2653
2654 return 0;
2655}
2656
2657static void
2658ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2659 bus_size_t count)
2660{
2661 for (; count > 0; offset++, datap++, count--) {
2662 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2663 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2664 }
2665}
2666#endif
2667
2668static void
2669ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2670 bus_size_t count)
2671{
2672 for (; count > 0; offset++, datap++, count--) {
2673 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2674 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2675 }
2676}
2677
2678static void
2679ipw_scan_start(struct ieee80211com *ic)
2680{
2681 struct ifnet *ifp = ic->ic_ifp;
2682 struct ipw_softc *sc = ifp->if_softc;
2683
2684 IPW_LOCK(sc);
2685 ipw_scan(sc);
2686 IPW_UNLOCK(sc);
2687}
2688
2689static void
2690ipw_set_channel(struct ieee80211com *ic)
2691{
2692 struct ifnet *ifp = ic->ic_ifp;
2693 struct ipw_softc *sc = ifp->if_softc;
2694
2695 IPW_LOCK(sc);
2696 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2697 ipw_disable(sc);
2698 ipw_setchannel(sc, ic->ic_curchan);
2699 ipw_enable(sc);
2700 }
2701 IPW_UNLOCK(sc);
2702}
2703
2704static void
2705ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2706{
2707 /* NB: all channels are scanned at once */
2708}
2709
2710static void
2711ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2712{
2713 /* NB: don't try to abort scan; wait for firmware to finish */
2714}
2715
2716static void
2717ipw_scan_end(struct ieee80211com *ic)
2718{
2719 struct ifnet *ifp = ic->ic_ifp;
2720 struct ipw_softc *sc = ifp->if_softc;
2721
2722 IPW_LOCK(sc);
2723 sc->flags &= ~IPW_FLAG_SCANNING;
2724 IPW_UNLOCK(sc);
2725}
| 1792 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1793 }
1794 }
1795 if (sc->sc_scan_timer > 0) {
1796 if (--sc->sc_scan_timer == 0) {
1797 DPRINTFN(3, ("Scan timeout\n"));
1798 /* End the scan */
1799 if (sc->flags & IPW_FLAG_SCANNING) {
1800 IPW_UNLOCK(sc);
1801 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1802 IPW_LOCK(sc);
1803 sc->flags &= ~IPW_FLAG_SCANNING;
1804 }
1805 }
1806 }
1807 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1808 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1809}
1810
1811static int
1812ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1813{
1814 struct ipw_softc *sc = ifp->if_softc;
1815 struct ieee80211com *ic = ifp->if_l2com;
1816 struct ifreq *ifr = (struct ifreq *) data;
1817 int error = 0, startall = 0;
1818
1819 switch (cmd) {
1820 case SIOCSIFFLAGS:
1821 IPW_LOCK(sc);
1822 if (ifp->if_flags & IFF_UP) {
1823 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1824 ipw_init_locked(sc);
1825 startall = 1;
1826 }
1827 } else {
1828 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1829 ipw_stop_locked(sc);
1830 }
1831 IPW_UNLOCK(sc);
1832 if (startall)
1833 ieee80211_start_all(ic);
1834 break;
1835 case SIOCGIFMEDIA:
1836 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1837 break;
1838 case SIOCGIFADDR:
1839 error = ether_ioctl(ifp, cmd, data);
1840 break;
1841 default:
1842 error = EINVAL;
1843 break;
1844 }
1845 return error;
1846}
1847
1848static void
1849ipw_stop_master(struct ipw_softc *sc)
1850{
1851 uint32_t tmp;
1852 int ntries;
1853
1854 /* disable interrupts */
1855 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1856
1857 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1858 for (ntries = 0; ntries < 50; ntries++) {
1859 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1860 break;
1861 DELAY(10);
1862 }
1863 if (ntries == 50)
1864 device_printf(sc->sc_dev, "timeout waiting for master\n");
1865
1866 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1867 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1868
1869 /* Clear all flags except the following */
1870 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1871}
1872
1873static int
1874ipw_reset(struct ipw_softc *sc)
1875{
1876 uint32_t tmp;
1877 int ntries;
1878
1879 ipw_stop_master(sc);
1880
1881 /* move adapter to D0 state */
1882 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1883 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1884
1885 /* wait for clock stabilization */
1886 for (ntries = 0; ntries < 1000; ntries++) {
1887 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1888 break;
1889 DELAY(200);
1890 }
1891 if (ntries == 1000)
1892 return EIO;
1893
1894 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1895 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1896
1897 DELAY(10);
1898
1899 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1900 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1901
1902 return 0;
1903}
1904
1905static int
1906ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1907{
1908 int ms = hz < 1000 ? 1 : hz/10;
1909 int i, error;
1910
1911 for (i = 0; i < 100; i++) {
1912 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1913 return 0;
1914 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1915 if (error == 0 || error != EWOULDBLOCK)
1916 return 0;
1917 }
1918 DPRINTF(("%s: timeout waiting for %s\n",
1919 __func__, waitfor ? "disable" : "enable"));
1920 return ETIMEDOUT;
1921}
1922
1923static int
1924ipw_enable(struct ipw_softc *sc)
1925{
1926 int error;
1927
1928 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1929 DPRINTF(("Enable adapter\n"));
1930 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1931 if (error != 0)
1932 return error;
1933 error = ipw_waitfordisable(sc, 0);
1934 if (error != 0)
1935 return error;
1936 sc->flags |= IPW_FLAG_ENABLED;
1937 }
1938 return 0;
1939}
1940
1941static int
1942ipw_disable(struct ipw_softc *sc)
1943{
1944 int error;
1945
1946 if (sc->flags & IPW_FLAG_ENABLED) {
1947 DPRINTF(("Disable adapter\n"));
1948 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1949 if (error != 0)
1950 return error;
1951 error = ipw_waitfordisable(sc, 1);
1952 if (error != 0)
1953 return error;
1954 sc->flags &= ~IPW_FLAG_ENABLED;
1955 }
1956 return 0;
1957}
1958
1959/*
1960 * Upload the microcode to the device.
1961 */
1962static int
1963ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1964{
1965 int ntries;
1966
1967 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1968 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1969
1970 MEM_WRITE_2(sc, 0x220000, 0x0703);
1971 MEM_WRITE_2(sc, 0x220000, 0x0707);
1972
1973 MEM_WRITE_1(sc, 0x210014, 0x72);
1974 MEM_WRITE_1(sc, 0x210014, 0x72);
1975
1976 MEM_WRITE_1(sc, 0x210000, 0x40);
1977 MEM_WRITE_1(sc, 0x210000, 0x00);
1978 MEM_WRITE_1(sc, 0x210000, 0x40);
1979
1980 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
1981
1982 MEM_WRITE_1(sc, 0x210000, 0x00);
1983 MEM_WRITE_1(sc, 0x210000, 0x00);
1984 MEM_WRITE_1(sc, 0x210000, 0x80);
1985
1986 MEM_WRITE_2(sc, 0x220000, 0x0703);
1987 MEM_WRITE_2(sc, 0x220000, 0x0707);
1988
1989 MEM_WRITE_1(sc, 0x210014, 0x72);
1990 MEM_WRITE_1(sc, 0x210014, 0x72);
1991
1992 MEM_WRITE_1(sc, 0x210000, 0x00);
1993 MEM_WRITE_1(sc, 0x210000, 0x80);
1994
1995 for (ntries = 0; ntries < 10; ntries++) {
1996 if (MEM_READ_1(sc, 0x210000) & 1)
1997 break;
1998 DELAY(10);
1999 }
2000 if (ntries == 10) {
2001 device_printf(sc->sc_dev,
2002 "timeout waiting for ucode to initialize\n");
2003 return EIO;
2004 }
2005
2006 MEM_WRITE_4(sc, 0x3000e0, 0);
2007
2008 return 0;
2009}
2010
2011/* set of macros to handle unaligned little endian data in firmware image */
2012#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2013#define GETLE16(p) ((p)[0] | (p)[1] << 8)
2014static int
2015ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
2016{
2017 const uint8_t *p, *end;
2018 uint32_t tmp, dst;
2019 uint16_t len;
2020 int error;
2021
2022 p = fw;
2023 end = fw + size;
2024 while (p < end) {
2025 dst = GETLE32(p); p += 4;
2026 len = GETLE16(p); p += 2;
2027
2028 ipw_write_mem_1(sc, dst, p, len);
2029 p += len;
2030 }
2031
2032 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
2033 IPW_IO_LED_OFF);
2034
2035 /* enable interrupts */
2036 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
2037
2038 /* kick the firmware */
2039 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2040
2041 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
2042 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
2043
2044 /* wait at most one second for firmware initialization to complete */
2045 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
2046 device_printf(sc->sc_dev, "timeout waiting for firmware "
2047 "initialization to complete\n");
2048 return error;
2049 }
2050
2051 tmp = CSR_READ_4(sc, IPW_CSR_IO);
2052 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2053 IPW_IO_GPIO3_MASK);
2054
2055 return 0;
2056}
2057
2058static int
2059ipw_setwepkeys(struct ipw_softc *sc)
2060{
2061 struct ifnet *ifp = sc->sc_ifp;
2062 struct ieee80211com *ic = ifp->if_l2com;
2063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2064 struct ipw_wep_key wepkey;
2065 struct ieee80211_key *wk;
2066 int error, i;
2067
2068 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2069 wk = &vap->iv_nw_keys[i];
2070
2071 if (wk->wk_cipher == NULL ||
2072 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2073 continue;
2074
2075 wepkey.idx = i;
2076 wepkey.len = wk->wk_keylen;
2077 memset(wepkey.key, 0, sizeof wepkey.key);
2078 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2079 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2080 wepkey.len));
2081 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2082 sizeof wepkey);
2083 if (error != 0)
2084 return error;
2085 }
2086 return 0;
2087}
2088
2089static int
2090ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2091{
2092 struct ipw_wpa_ie wpaie;
2093
2094 memset(&wpaie, 0, sizeof(wpaie));
2095 wpaie.len = htole32(ielen);
2096 /* XXX verify length */
2097 memcpy(&wpaie.ie, ie, ielen);
2098 DPRINTF(("Setting WPA IE\n"));
2099 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2100}
2101
2102static int
2103ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2104{
2105 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2106
2107 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2108 DPRINTF(("Setting mandatory BSSID to null\n"));
2109 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2110 } else {
2111 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2112 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2113 bssid, IEEE80211_ADDR_LEN);
2114 }
2115}
2116
2117static int
2118ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2119{
2120 if (ssidlen == 0) {
2121 /*
2122 * A bug in the firmware breaks the ``don't associate''
2123 * bit in the scan options command. To compensate for
2124 * this install a bogus ssid when no ssid is specified
2125 * so the firmware won't try to associate.
2126 */
2127 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2128 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2129 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2130 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2131 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2132 "\x3c\x3d", IEEE80211_NWID_LEN);
2133 } else {
2134#ifdef IPW_DEBUG
2135 if (ipw_debug > 0) {
2136 printf("Setting ESSID to ");
2137 ieee80211_print_essid(ssid, ssidlen);
2138 printf("\n");
2139 }
2140#endif
2141 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2142 }
2143}
2144
2145static int
2146ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2147{
2148 struct ipw_scan_options opts;
2149
2150 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2151 opts.channels = htole32(chanmask);
2152 opts.flags = htole32(flags);
2153 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2154}
2155
2156static int
2157ipw_scan(struct ipw_softc *sc)
2158{
2159 uint32_t params;
2160 int error;
2161
2162 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2163
2164 if (sc->flags & IPW_FLAG_SCANNING)
2165 return (EBUSY);
2166 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2167
2168 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2169 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2170 if (error != 0)
2171 goto done;
2172
2173 /*
2174 * Setup null/bogus ssid so firmware doesn't use any previous
2175 * ssid to try and associate. This is because the ``don't
2176 * associate'' option bit is broken (sigh).
2177 */
2178 error = ipw_setssid(sc, NULL, 0);
2179 if (error != 0)
2180 goto done;
2181
2182 /*
2183 * NB: the adapter may be disabled on association lost;
2184 * if so just re-enable it to kick off scanning.
2185 */
2186 DPRINTF(("Starting scan\n"));
2187 sc->sc_scan_timer = 3;
2188 if (sc->flags & IPW_FLAG_ENABLED) {
2189 params = 0; /* XXX? */
2190 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2191 ¶ms, sizeof(params));
2192 } else
2193 error = ipw_enable(sc);
2194done:
2195 if (error != 0) {
2196 DPRINTF(("Scan failed\n"));
2197 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2198 }
2199 return (error);
2200}
2201
2202static int
2203ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2204{
2205 struct ifnet *ifp = sc->sc_ifp;
2206 struct ieee80211com *ic = ifp->if_l2com;
2207 uint32_t data;
2208 int error;
2209
2210 data = htole32(ieee80211_chan2ieee(ic, chan));
2211 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2212 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2213 if (error == 0)
2214 ipw_setcurchan(sc, chan);
2215 return error;
2216}
2217
2218static void
2219ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2220{
2221 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2222 struct ipw_softc *sc = ifp->if_softc;
2223 struct ieee80211_node *ni = vap->iv_bss;
2224 struct ipw_security security;
2225 uint32_t data;
2226 int error;
2227
2228 IPW_LOCK(sc);
2229 error = ipw_disable(sc);
2230 if (error != 0)
2231 goto done;
2232
2233 memset(&security, 0, sizeof security);
2234 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2235 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2236 security.ciphers = htole32(IPW_CIPHER_NONE);
2237 DPRINTF(("Setting authmode to %u\n", security.authmode));
2238 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2239 sizeof security);
2240 if (error != 0)
2241 goto done;
2242
2243 data = htole32(vap->iv_rtsthreshold);
2244 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2245 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2246 if (error != 0)
2247 goto done;
2248
2249 data = htole32(vap->iv_fragthreshold);
2250 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2251 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2252 if (error != 0)
2253 goto done;
2254
2255 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2256 error = ipw_setwepkeys(sc);
2257 if (error != 0)
2258 goto done;
2259
2260 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2261 data = htole32(vap->iv_def_txkey);
2262 DPRINTF(("Setting wep tx key index to %u\n",
2263 le32toh(data)));
2264 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2265 sizeof data);
2266 if (error != 0)
2267 goto done;
2268 }
2269 }
2270
2271 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2272 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2273 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2274 if (error != 0)
2275 goto done;
2276
2277 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2278 if (error != 0)
2279 goto done;
2280
2281 error = ipw_setbssid(sc, ni->ni_bssid);
2282 if (error != 0)
2283 goto done;
2284
2285 if (vap->iv_appie_wpa != NULL) {
2286 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2287 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2288 if (error != 0)
2289 goto done;
2290 }
2291 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2292 error = ipw_setchannel(sc, ni->ni_chan);
2293 if (error != 0)
2294 goto done;
2295 }
2296
2297 /* lock scan to ap's channel and enable associate */
2298 error = ipw_setscanopts(sc,
2299 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2300 if (error != 0)
2301 goto done;
2302
2303 error = ipw_enable(sc); /* finally, enable adapter */
2304 if (error == 0)
2305 sc->flags |= IPW_FLAG_ASSOCIATING;
2306done:
2307 IPW_UNLOCK(sc);
2308}
2309
2310static void
2311ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2312{
2313 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2314 struct ieee80211_node *ni = vap->iv_bss;
2315 struct ipw_softc *sc = ifp->if_softc;
2316
2317 IPW_LOCK(sc);
2318 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2319 /*
2320 * NB: don't try to do this if ipw_stop_master has
2321 * shutdown the firmware and disabled interrupts.
2322 */
2323 if (sc->flags & IPW_FLAG_FW_INITED) {
2324 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2325 /*
2326 * NB: firmware currently ignores bssid parameter, but
2327 * supply it in case this changes (follow linux driver).
2328 */
2329 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2330 ni->ni_bssid, IEEE80211_ADDR_LEN);
2331 }
2332 IPW_UNLOCK(sc);
2333}
2334
2335/*
2336 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2337 * It is called on firmware panics or on watchdog timeouts.
2338 */
2339static void
2340ipw_init_task(void *context, int pending)
2341{
2342 ipw_init(context);
2343}
2344
2345static void
2346ipw_init(void *priv)
2347{
2348 struct ipw_softc *sc = priv;
2349 struct ifnet *ifp = sc->sc_ifp;
2350 struct ieee80211com *ic = ifp->if_l2com;
2351
2352 IPW_LOCK(sc);
2353 ipw_init_locked(sc);
2354 IPW_UNLOCK(sc);
2355
2356 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2357 ieee80211_start_all(ic); /* start all vap's */
2358}
2359
2360static void
2361ipw_init_locked(struct ipw_softc *sc)
2362{
2363 struct ifnet *ifp = sc->sc_ifp;
2364 struct ieee80211com *ic = ifp->if_l2com;
2365 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2366 const struct firmware *fp;
2367 const struct ipw_firmware_hdr *hdr;
2368 const char *fw;
2369
2370 IPW_LOCK_ASSERT(sc);
2371
2372 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2373 ieee80211_state_name[vap->iv_state], sc->flags));
2374
2375 /*
2376 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2377 * when loading the firmware and we don't want to be called during this
2378 * operation.
2379 */
2380 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2381 return;
2382 sc->flags |= IPW_FLAG_INIT_LOCKED;
2383
2384 ipw_stop_locked(sc);
2385
2386 if (ipw_reset(sc) != 0) {
2387 device_printf(sc->sc_dev, "could not reset adapter\n");
2388 goto fail;
2389 }
2390
2391 if (sc->sc_firmware == NULL) {
2392 device_printf(sc->sc_dev, "no firmware\n");
2393 goto fail;
2394 }
2395 /* NB: consistency already checked on load */
2396 fp = sc->sc_firmware;
2397 hdr = (const struct ipw_firmware_hdr *)fp->data;
2398
2399 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2400 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2401 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2402 device_printf(sc->sc_dev, "could not load microcode\n");
2403 goto fail;
2404 }
2405
2406 ipw_stop_master(sc);
2407
2408 /*
2409 * Setup tx, rx and status rings.
2410 */
2411 sc->txold = IPW_NTBD - 1;
2412 sc->txcur = 0;
2413 sc->txfree = IPW_NTBD - 2;
2414 sc->rxcur = IPW_NRBD - 1;
2415
2416 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2417 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2418 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2419 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2420
2421 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2422 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2423 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2424 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2425
2426 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2427
2428 fw = (const char *)fp->data + sizeof *hdr;
2429 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2430 device_printf(sc->sc_dev, "could not load firmware\n");
2431 goto fail;
2432 }
2433
2434 sc->flags |= IPW_FLAG_FW_INITED;
2435
2436 /* retrieve information tables base addresses */
2437 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2438 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2439
2440 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2441
2442 if (ipw_config(sc) != 0) {
2443 device_printf(sc->sc_dev, "device configuration failed\n");
2444 goto fail;
2445 }
2446
2447 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2448 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2449 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2450
2451 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2452 return;
2453
2454fail:
2455 ipw_stop_locked(sc);
2456 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2457}
2458
2459static int
2460ipw_config(struct ipw_softc *sc)
2461{
2462 struct ifnet *ifp = sc->sc_ifp;
2463 struct ieee80211com *ic = ifp->if_l2com;
2464 struct ipw_configuration config;
2465 uint32_t data;
2466 int error;
2467
2468 error = ipw_disable(sc);
2469 if (error != 0)
2470 return error;
2471
2472 switch (ic->ic_opmode) {
2473 case IEEE80211_M_STA:
2474 case IEEE80211_M_HOSTAP:
2475 case IEEE80211_M_WDS: /* XXX */
2476 data = htole32(IPW_MODE_BSS);
2477 break;
2478 case IEEE80211_M_IBSS:
2479 case IEEE80211_M_AHDEMO:
2480 data = htole32(IPW_MODE_IBSS);
2481 break;
2482 case IEEE80211_M_MONITOR:
2483 data = htole32(IPW_MODE_MONITOR);
2484 break;
2485 default:
2486 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2487 return EINVAL;
2488 }
2489 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2490 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2491 if (error != 0)
2492 return error;
2493
2494 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2495 ic->ic_opmode == IEEE80211_M_MONITOR) {
2496 error = ipw_setchannel(sc, ic->ic_curchan);
2497 if (error != 0)
2498 return error;
2499 }
2500
2501 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2502 return ipw_enable(sc);
2503
2504 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2505 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2506 if (ic->ic_opmode == IEEE80211_M_IBSS)
2507 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2508 if (ifp->if_flags & IFF_PROMISC)
2509 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2510 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2511 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2512 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2513 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2514 if (error != 0)
2515 return error;
2516
2517 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2518 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2519 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2520 if (error != 0)
2521 return error;
2522
2523 /* Use the same rate set */
2524 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2525 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2526 if (error != 0)
2527 return error;
2528
2529 /* Use the same rate set */
2530 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2531 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2532 if (error != 0)
2533 return error;
2534
2535 data = htole32(IPW_POWER_MODE_CAM);
2536 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2537 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2538 if (error != 0)
2539 return error;
2540
2541 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2542 data = htole32(32); /* default value */
2543 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2544 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2545 sizeof data);
2546 if (error != 0)
2547 return error;
2548 }
2549
2550 return 0;
2551}
2552
2553static void
2554ipw_stop(void *priv)
2555{
2556 struct ipw_softc *sc = priv;
2557
2558 IPW_LOCK(sc);
2559 ipw_stop_locked(sc);
2560 IPW_UNLOCK(sc);
2561}
2562
2563static void
2564ipw_stop_locked(struct ipw_softc *sc)
2565{
2566 struct ifnet *ifp = sc->sc_ifp;
2567 int i;
2568
2569 IPW_LOCK_ASSERT(sc);
2570
2571 callout_stop(&sc->sc_wdtimer);
2572 ipw_stop_master(sc);
2573
2574 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2575
2576 /*
2577 * Release tx buffers.
2578 */
2579 for (i = 0; i < IPW_NTBD; i++)
2580 ipw_release_sbd(sc, &sc->stbd_list[i]);
2581
2582 sc->sc_tx_timer = 0;
2583 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2584}
2585
2586static int
2587ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2588{
2589 struct ipw_softc *sc = arg1;
2590 uint32_t i, size, buf[256];
2591
2592 memset(buf, 0, sizeof buf);
2593
2594 if (!(sc->flags & IPW_FLAG_FW_INITED))
2595 return SYSCTL_OUT(req, buf, sizeof buf);
2596
2597 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2598
2599 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2600 for (i = 1; i < size; i++)
2601 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2602
2603 return SYSCTL_OUT(req, buf, size);
2604}
2605
2606static int
2607ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2608{
2609 struct ipw_softc *sc = arg1;
2610 int val;
2611
2612 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2613 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2614
2615 return SYSCTL_OUT(req, &val, sizeof val);
2616}
2617
2618static uint32_t
2619ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2620{
2621 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2622}
2623
2624static void
2625ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2626{
2627 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2628}
2629
2630#if 0
2631static int
2632ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2633{
2634 uint32_t addr, info;
2635 uint16_t count, size;
2636 uint32_t total;
2637
2638 /* addr[4] + count[2] + size[2] */
2639 addr = MEM_READ_4(sc, sc->table2_base + off);
2640 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2641
2642 count = info >> 16;
2643 size = info & 0xffff;
2644 total = count * size;
2645
2646 if (total > *len) {
2647 *len = total;
2648 return EINVAL;
2649 }
2650
2651 *len = total;
2652 ipw_read_mem_1(sc, addr, buf, total);
2653
2654 return 0;
2655}
2656
2657static void
2658ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2659 bus_size_t count)
2660{
2661 for (; count > 0; offset++, datap++, count--) {
2662 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2663 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2664 }
2665}
2666#endif
2667
2668static void
2669ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2670 bus_size_t count)
2671{
2672 for (; count > 0; offset++, datap++, count--) {
2673 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2674 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2675 }
2676}
2677
2678static void
2679ipw_scan_start(struct ieee80211com *ic)
2680{
2681 struct ifnet *ifp = ic->ic_ifp;
2682 struct ipw_softc *sc = ifp->if_softc;
2683
2684 IPW_LOCK(sc);
2685 ipw_scan(sc);
2686 IPW_UNLOCK(sc);
2687}
2688
2689static void
2690ipw_set_channel(struct ieee80211com *ic)
2691{
2692 struct ifnet *ifp = ic->ic_ifp;
2693 struct ipw_softc *sc = ifp->if_softc;
2694
2695 IPW_LOCK(sc);
2696 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2697 ipw_disable(sc);
2698 ipw_setchannel(sc, ic->ic_curchan);
2699 ipw_enable(sc);
2700 }
2701 IPW_UNLOCK(sc);
2702}
2703
2704static void
2705ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2706{
2707 /* NB: all channels are scanned at once */
2708}
2709
2710static void
2711ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2712{
2713 /* NB: don't try to abort scan; wait for firmware to finish */
2714}
2715
2716static void
2717ipw_scan_end(struct ieee80211com *ic)
2718{
2719 struct ifnet *ifp = ic->ic_ifp;
2720 struct ipw_softc *sc = ifp->if_softc;
2721
2722 IPW_LOCK(sc);
2723 sc->flags &= ~IPW_FLAG_SCANNING;
2724 IPW_UNLOCK(sc);
2725}
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