1/* $NetBSD: if_iwi.c,v 1.100 2016/08/03 19:59:57 mlelstv Exp $ */
2/* $OpenBSD: if_iwi.c,v 1.111 2010/11/15 19:11:57 damien Exp $ */
3
4/*-
5 * Copyright (c) 2004-2008
6 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21#include <sys/cdefs.h>
22__KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.100 2016/08/03 19:59:57 mlelstv Exp $");
23
24/*-
25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver
26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
27 */
28
29
30#include <sys/param.h>
31#include <sys/sockio.h>
32#include <sys/sysctl.h>
33#include <sys/mbuf.h>
34#include <sys/kernel.h>
35#include <sys/socket.h>
36#include <sys/systm.h>
37#include <sys/malloc.h>
38#include <sys/conf.h>
39#include <sys/kauth.h>
40#include <sys/proc.h>
41#include <sys/cprng.h>
42
43#include <sys/bus.h>
44#include <machine/endian.h>
45#include <sys/intr.h>
46
47#include <dev/firmload.h>
48
49#include <dev/pci/pcireg.h>
50#include <dev/pci/pcivar.h>
51#include <dev/pci/pcidevs.h>
52
53#include <net/bpf.h>
54#include <net/if.h>
55#include <net/if_arp.h>
56#include <net/if_dl.h>
57#include <net/if_ether.h>
58#include <net/if_media.h>
59#include <net/if_types.h>
60
61#include <net80211/ieee80211_var.h>
62#include <net80211/ieee80211_radiotap.h>
63
64#include <netinet/in.h>
65#include <netinet/in_systm.h>
66#include <netinet/in_var.h>
67#include <netinet/ip.h>
68
69#include <dev/pci/if_iwireg.h>
70#include <dev/pci/if_iwivar.h>
71
72#ifdef IWI_DEBUG
73#define DPRINTF(x) if (iwi_debug > 0) printf x
74#define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x
75int iwi_debug = 4;
76#else
77#define DPRINTF(x)
78#define DPRINTFN(n, x)
79#endif
80
81/* Permit loading the Intel firmware */
82static int iwi_accept_eula;
83
84static int iwi_match(device_t, cfdata_t, void *);
85static void iwi_attach(device_t, device_t, void *);
86static int iwi_detach(device_t, int);
87
88static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *,
89 int);
90static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
91static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *);
92static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *,
93 int, bus_size_t, bus_size_t);
94static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
95static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *);
96static struct mbuf *
97 iwi_alloc_rx_buf(struct iwi_softc *sc);
98static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *,
99 int);
100static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
101static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *);
102
103static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *);
104static void iwi_node_free(struct ieee80211_node *);
105
106static int iwi_cvtrate(int);
107static int iwi_media_change(struct ifnet *);
108static void iwi_media_status(struct ifnet *, struct ifmediareq *);
109static int iwi_wme_update(struct ieee80211com *);
110static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t);
111static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int);
112static void iwi_fix_channel(struct ieee80211com *, struct mbuf *);
113static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int,
114 struct iwi_frame *);
115static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *);
116static void iwi_cmd_intr(struct iwi_softc *);
117static void iwi_rx_intr(struct iwi_softc *);
118static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *);
119static int iwi_intr(void *);
120static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int);
121static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *);
122static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *,
123 int);
124static void iwi_start(struct ifnet *);
125static void iwi_watchdog(struct ifnet *);
126
127static int iwi_alloc_unr(struct iwi_softc *);
128static void iwi_free_unr(struct iwi_softc *, int);
129
130static int iwi_get_table0(struct iwi_softc *, uint32_t *);
131
132static int iwi_ioctl(struct ifnet *, u_long, void *);
133static void iwi_stop_master(struct iwi_softc *);
134static int iwi_reset(struct iwi_softc *);
135static int iwi_load_ucode(struct iwi_softc *, void *, int);
136static int iwi_load_firmware(struct iwi_softc *, void *, int);
137static int iwi_cache_firmware(struct iwi_softc *);
138static void iwi_free_firmware(struct iwi_softc *);
139static int iwi_config(struct iwi_softc *);
140static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *);
141static int iwi_scan(struct iwi_softc *);
142static int iwi_auth_and_assoc(struct iwi_softc *);
143static int iwi_init(struct ifnet *);
144static void iwi_stop(struct ifnet *, int);
145static int iwi_getrfkill(struct iwi_softc *);
146static void iwi_led_set(struct iwi_softc *, uint32_t, int);
147static void iwi_sysctlattach(struct iwi_softc *);
148
149/*
150 * Supported rates for 802.11a/b/g modes (in 500Kbps unit).
151 */
152static const struct ieee80211_rateset iwi_rateset_11a =
153 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } };
154
155static const struct ieee80211_rateset iwi_rateset_11b =
156 { 4, { 2, 4, 11, 22 } };
157
158static const struct ieee80211_rateset iwi_rateset_11g =
159 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
160
161static inline uint8_t
162MEM_READ_1(struct iwi_softc *sc, uint32_t addr)
163{
164 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
165 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA);
166}
167
168static inline uint32_t
169MEM_READ_4(struct iwi_softc *sc, uint32_t addr)
170{
171 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr);
172 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA);
173}
174
175CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach,
176 iwi_detach, NULL);
177
178static int
179iwi_match(device_t parent, cfdata_t match, void *aux)
180{
181 struct pci_attach_args *pa = aux;
182
183 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL)
184 return 0;
185
186 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG ||
187 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG ||
188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 ||
189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2)
190 return 1;
191
192 return 0;
193}
194
195/* Base Address Register */
196#define IWI_PCI_BAR0 0x10
197
198static void
199iwi_attach(device_t parent, device_t self, void *aux)
200{
201 struct iwi_softc *sc = device_private(self);
202 struct ieee80211com *ic = &sc->sc_ic;
203 struct ifnet *ifp = &sc->sc_if;
204 struct pci_attach_args *pa = aux;
205 const char *intrstr;
206 bus_space_tag_t memt;
207 bus_space_handle_t memh;
208 pci_intr_handle_t ih;
209 pcireg_t data;
210 uint16_t val;
211 int error, i;
212 char intrbuf[PCI_INTRSTR_LEN];
213
214 sc->sc_dev = self;
215 sc->sc_pct = pa->pa_pc;
216 sc->sc_pcitag = pa->pa_tag;
217
218 pci_aprint_devinfo(pa, NULL);
219
220 /* clear unit numbers allocated to IBSS */
221 sc->sc_unr = 0;
222
223 /* power up chip */
224 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
225 NULL)) && error != EOPNOTSUPP) {
226 aprint_error_dev(self, "cannot activate %d\n", error);
227 return;
228 }
229
230 /* clear device specific PCI configuration register 0x41 */
231 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40);
232 data &= ~0x0000ff00;
233 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data);
234
235
236 /* enable bus-mastering */
237 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG);
238 data |= PCI_COMMAND_MASTER_ENABLE;
239 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data);
240
241 /* map the register window */
242 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
243 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz);
244 if (error != 0) {
245 aprint_error_dev(self, "could not map memory space\n");
246 return;
247 }
248
249 sc->sc_st = memt;
250 sc->sc_sh = memh;
251 sc->sc_dmat = pa->pa_dmat;
252
253 /* disable interrupts */
254 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
255
256 if (pci_intr_map(pa, &ih) != 0) {
257 aprint_error_dev(self, "could not map interrupt\n");
258 return;
259 }
260
261 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf));
262 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc);
263 if (sc->sc_ih == NULL) {
264 aprint_error_dev(self, "could not establish interrupt");
265 if (intrstr != NULL)
266 aprint_error(" at %s", intrstr);
267 aprint_error("\n");
268 return;
269 }
270 aprint_normal_dev(self, "interrupting at %s\n", intrstr);
271
272 if (iwi_reset(sc) != 0) {
273 pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
274 aprint_error_dev(self, "could not reset adapter\n");
275 return;
276 }
277
278 ic->ic_ifp = ifp;
279 ic->ic_wme.wme_update = iwi_wme_update;
280 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
281 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
282 ic->ic_state = IEEE80211_S_INIT;
283
284 sc->sc_fwname = "ipw2200-bss.fw";
285
286 /* set device capabilities */
287 ic->ic_caps =
288 IEEE80211_C_IBSS | /* IBSS mode supported */
289 IEEE80211_C_MONITOR | /* monitor mode supported */
290 IEEE80211_C_TXPMGT | /* tx power management */
291 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
292 IEEE80211_C_SHSLOT | /* short slot time supported */
293 IEEE80211_C_WPA | /* 802.11i */
294 IEEE80211_C_WME; /* 802.11e */
295
296 /* read MAC address from EEPROM */
297 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0);
298 ic->ic_myaddr[0] = val & 0xff;
299 ic->ic_myaddr[1] = val >> 8;
300 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1);
301 ic->ic_myaddr[2] = val & 0xff;
302 ic->ic_myaddr[3] = val >> 8;
303 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2);
304 ic->ic_myaddr[4] = val & 0xff;
305 ic->ic_myaddr[5] = val >> 8;
306
307 aprint_verbose_dev(self, "802.11 address %s\n",
308 ether_sprintf(ic->ic_myaddr));
309
310 /* read the NIC type from EEPROM */
311 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE);
312 sc->nictype = val & 0xff;
313
314 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype));
315
316 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 ||
317 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) {
318 /* set supported .11a rates (2915ABG only) */
319 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a;
320
321 /* set supported .11a channels */
322 for (i = 36; i <= 64; i += 4) {
323 ic->ic_channels[i].ic_freq =
324 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
325 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
326 }
327 for (i = 149; i <= 165; i += 4) {
328 ic->ic_channels[i].ic_freq =
329 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
330 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
331 }
332 }
333
334 /* set supported .11b and .11g rates */
335 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b;
336 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g;
337
338 /* set supported .11b and .11g channels (1 through 14) */
339 for (i = 1; i <= 14; i++) {
340 ic->ic_channels[i].ic_freq =
341 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
342 ic->ic_channels[i].ic_flags =
343 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
344 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
345 }
346
347 ifp->if_softc = sc;
348 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
349 ifp->if_init = iwi_init;
350 ifp->if_stop = iwi_stop;
351 ifp->if_ioctl = iwi_ioctl;
352 ifp->if_start = iwi_start;
353 ifp->if_watchdog = iwi_watchdog;
354 IFQ_SET_READY(&ifp->if_snd);
355 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ);
356
357 if_attach(ifp);
358 ieee80211_ifattach(ic);
359 /* override default methods */
360 ic->ic_node_alloc = iwi_node_alloc;
361 sc->sc_node_free = ic->ic_node_free;
362 ic->ic_node_free = iwi_node_free;
363 /* override state transition machine */
364 sc->sc_newstate = ic->ic_newstate;
365 ic->ic_newstate = iwi_newstate;
366 ieee80211_media_init(ic, iwi_media_change, iwi_media_status);
367
368 /*
369 * Allocate rings.
370 */
371 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) {
372 aprint_error_dev(self, "could not allocate command ring\n");
373 goto fail;
374 }
375
376 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT,
377 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX);
378 if (error != 0) {
379 aprint_error_dev(self, "could not allocate Tx ring 1\n");
380 goto fail;
381 }
382
383 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT,
384 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX);
385 if (error != 0) {
386 aprint_error_dev(self, "could not allocate Tx ring 2\n");
387 goto fail;
388 }
389
390 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT,
391 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX);
392 if (error != 0) {
393 aprint_error_dev(self, "could not allocate Tx ring 3\n");
394 goto fail;
395 }
396
397 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT,
398 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX);
399 if (error != 0) {
400 aprint_error_dev(self, "could not allocate Tx ring 4\n");
401 goto fail;
402 }
403
404 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) {
405 aprint_error_dev(self, "could not allocate Rx ring\n");
406 goto fail;
407 }
408
409 bpf_attach2(ifp, DLT_IEEE802_11_RADIO,
410 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf);
411
412 sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
413 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
414 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT);
415
416 sc->sc_txtap_len = sizeof sc->sc_txtapu;
417 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
418 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT);
419
420 iwi_sysctlattach(sc);
421
422 if (pmf_device_register(self, NULL, NULL))
423 pmf_class_network_register(self, ifp);
424 else
425 aprint_error_dev(self, "couldn't establish power handler\n");
426
427 ieee80211_announce(ic);
428
429 return;
430
431fail: iwi_detach(self, 0);
432}
433
434static int
435iwi_detach(device_t self, int flags)
436{
437 struct iwi_softc *sc = device_private(self);
438 struct ifnet *ifp = &sc->sc_if;
439
440 pmf_device_deregister(self);
441
442 if (ifp != NULL)
443 iwi_stop(ifp, 1);
444
445 iwi_free_firmware(sc);
446
447 ieee80211_ifdetach(&sc->sc_ic);
448 if (ifp != NULL)
449 if_detach(ifp);
450
451 iwi_free_cmd_ring(sc, &sc->cmdq);
452 iwi_free_tx_ring(sc, &sc->txq[0]);
453 iwi_free_tx_ring(sc, &sc->txq[1]);
454 iwi_free_tx_ring(sc, &sc->txq[2]);
455 iwi_free_tx_ring(sc, &sc->txq[3]);
456 iwi_free_rx_ring(sc, &sc->rxq);
457
458 if (sc->sc_ih != NULL) {
459 pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
460 sc->sc_ih = NULL;
461 }
462
463 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz);
464
465 return 0;
466}
467
468static int
469iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring,
470 int count)
471{
472 int error, nsegs;
473
474 ring->count = count;
475 ring->queued = 0;
476 ring->cur = ring->next = 0;
477
478 /*
479 * Allocate and map command ring
480 */
481 error = bus_dmamap_create(sc->sc_dmat,
482 IWI_CMD_DESC_SIZE * count, 1,
483 IWI_CMD_DESC_SIZE * count, 0,
484 BUS_DMA_NOWAIT, &ring->desc_map);
485 if (error != 0) {
486 aprint_error_dev(sc->sc_dev,
487 "could not create command ring DMA map\n");
488 ring->desc_map = NULL;
489 goto fail;
490 }
491
492 error = bus_dmamem_alloc(sc->sc_dmat,
493 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0,
494 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT);
495 if (error != 0) {
496 aprint_error_dev(sc->sc_dev,
497 "could not allocate command ring DMA memory\n");
498 goto fail;
499 }
500
501 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs,
502 IWI_CMD_DESC_SIZE * count,
503 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT);
504 if (error != 0) {
505 aprint_error_dev(sc->sc_dev,
506 "could not map command ring DMA memory\n");
507 goto fail;
508 }
509
510 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc,
511 IWI_CMD_DESC_SIZE * count, NULL,
512 BUS_DMA_NOWAIT);
513 if (error != 0) {
514 aprint_error_dev(sc->sc_dev,
515 "could not load command ring DMA map\n");
516 goto fail;
517 }
518
519 memset(sc->cmdq.desc, 0,
520 IWI_CMD_DESC_SIZE * count);
521
522 return 0;
523
524fail: return error;
525}
526
527static void
528iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
529{
530 int i;
531
532 for (i = ring->next; i != ring->cur;) {
533 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map,
534 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE,
535 BUS_DMASYNC_POSTWRITE);
536
537 wakeup(&ring->desc[i]);
538 i = (i + 1) % ring->count;
539 }
540
541 ring->queued = 0;
542 ring->cur = ring->next = 0;
543}
544
545static void
546iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring)
547{
548 if (ring->desc_map != NULL) {
549 if (ring->desc != NULL) {
550 bus_dmamap_unload(sc->sc_dmat, ring->desc_map);
551 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc,
552 IWI_CMD_DESC_SIZE * ring->count);
553 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1);
554 }
555 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map);
556 }
557}
558
559static int
560iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring,
561 int count, bus_size_t csr_ridx, bus_size_t csr_widx)
562{
563 int i, error, nsegs;
564
565 ring->count = 0;
566 ring->queued = 0;
567 ring->cur = ring->next = 0;
568 ring->csr_ridx = csr_ridx;
569 ring->csr_widx = csr_widx;
570
571 /*
572 * Allocate and map Tx ring
573 */
574 error = bus_dmamap_create(sc->sc_dmat,
575 IWI_TX_DESC_SIZE * count, 1,
576 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT,
577 &ring->desc_map);
578 if (error != 0) {
579 aprint_error_dev(sc->sc_dev,
580 "could not create tx ring DMA map\n");
581 ring->desc_map = NULL;
582 goto fail;
583 }
584
585 error = bus_dmamem_alloc(sc->sc_dmat,
586 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0,
587 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT);
588 if (error != 0) {
589 aprint_error_dev(sc->sc_dev,
590 "could not allocate tx ring DMA memory\n");
591 goto fail;
592 }
593
594 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs,
595 IWI_TX_DESC_SIZE * count,
596 (void **)&ring->desc, BUS_DMA_NOWAIT);
597 if (error != 0) {
598 aprint_error_dev(sc->sc_dev,
599 "could not map tx ring DMA memory\n");
600 goto fail;
601 }
602
603 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc,
604 IWI_TX_DESC_SIZE * count, NULL,
605 BUS_DMA_NOWAIT);
606 if (error != 0) {
607 aprint_error_dev(sc->sc_dev,
608 "could not load tx ring DMA map\n");
609 goto fail;
610 }
611
612 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count);
613
614 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF,
615 M_NOWAIT | M_ZERO);
616 if (ring->data == NULL) {
617 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n");
618 error = ENOMEM;
619 goto fail;
620 }
621 ring->count = count;
622
623 /*
624 * Allocate Tx buffers DMA maps
625 */
626 for (i = 0; i < count; i++) {
627 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG,
628 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map);
629 if (error != 0) {
630 aprint_error_dev(sc->sc_dev,
631 "could not create tx buf DMA map");
632 ring->data[i].map = NULL;
633 goto fail;
634 }
635 }
636 return 0;
637
638fail: return error;
639}
640
641static void
642iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
643{
644 struct iwi_tx_data *data;
645 int i;
646
647 for (i = 0; i < ring->count; i++) {
648 data = &ring->data[i];
649
650 if (data->m != NULL) {
651 m_freem(data->m);
652 data->m = NULL;
653 }
654
655 if (data->map != NULL) {
656 bus_dmamap_sync(sc->sc_dmat, data->map, 0,
657 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
658 bus_dmamap_unload(sc->sc_dmat, data->map);
659 }
660
661 if (data->ni != NULL) {
662 ieee80211_free_node(data->ni);
663 data->ni = NULL;
664 }
665 }
666
667 ring->queued = 0;
668 ring->cur = ring->next = 0;
669}
670
671static void
672iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring)
673{
674 int i;
675 struct iwi_tx_data *data;
676
677 if (ring->desc_map != NULL) {
678 if (ring->desc != NULL) {
679 bus_dmamap_unload(sc->sc_dmat, ring->desc_map);
680 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc,
681 IWI_TX_DESC_SIZE * ring->count);
682 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1);
683 }
684 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map);
685 }
686
687 for (i = 0; i < ring->count; i++) {
688 data = &ring->data[i];
689
690 if (data->m != NULL) {
691 m_freem(data->m);
692 }
693
694 if (data->map != NULL) {
695 bus_dmamap_unload(sc->sc_dmat, data->map);
696 bus_dmamap_destroy(sc->sc_dmat, data->map);
697 }
698 }
699}
700
701static int
702iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count)
703{
704 int i, error;
705
706 ring->count = 0;
707 ring->cur = 0;
708
709 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF,
710 M_NOWAIT | M_ZERO);
711 if (ring->data == NULL) {
712 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n");
713 error = ENOMEM;
714 goto fail;
715 }
716
717 ring->count = count;
718
719 /*
720 * Allocate and map Rx buffers
721 */
722 for (i = 0; i < count; i++) {
723
724 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES,
725 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map);
726 if (error != 0) {
727 aprint_error_dev(sc->sc_dev,
728 "could not create rx buf DMA map");
729 ring->data[i].map = NULL;
730 goto fail;
731 }
732
733 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) {
734 error = ENOMEM;
735 goto fail;
736 }
737
738 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map,
739 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT);
740 if (error != 0) {
741 aprint_error_dev(sc->sc_dev,
742 "could not load rx buffer DMA map\n");
743 goto fail;
744 }
745
746 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0,
747 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD);
748 }
749
750 return 0;
751
752fail: return error;
753}
754
755static void
756iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
757{
758 ring->cur = 0;
759}
760
761static void
762iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring)
763{
764 int i;
765 struct iwi_rx_data *data;
766
767 for (i = 0; i < ring->count; i++) {
768 data = &ring->data[i];
769
770 if (data->m != NULL) {
771 m_freem(data->m);
772 }
773
774 if (data->map != NULL) {
775 bus_dmamap_unload(sc->sc_dmat, data->map);
776 bus_dmamap_destroy(sc->sc_dmat, data->map);
777 }
778
779 }
780}
781
782static struct ieee80211_node *
783iwi_node_alloc(struct ieee80211_node_table *nt)
784{
785 struct iwi_node *in;
786
787 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
788 if (in == NULL)
789 return NULL;
790
791 in->in_station = -1;
792
793 return &in->in_node;
794}
795
796static int
797iwi_alloc_unr(struct iwi_softc *sc)
798{
799 int i;
800
801 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++)
802 if ((sc->sc_unr & (1 << i)) == 0) {
803 sc->sc_unr |= 1 << i;
804 return i;
805 }
806
807 return -1;
808}
809
810static void
811iwi_free_unr(struct iwi_softc *sc, int r)
812{
813
814 sc->sc_unr &= 1 << r;
815}
816
817static void
818iwi_node_free(struct ieee80211_node *ni)
819{
820 struct ieee80211com *ic = ni->ni_ic;
821 struct iwi_softc *sc = ic->ic_ifp->if_softc;
822 struct iwi_node *in = (struct iwi_node *)ni;
823
824 if (in->in_station != -1)
825 iwi_free_unr(sc, in->in_station);
826
827 sc->sc_node_free(ni);
828}
829
830static int
831iwi_media_change(struct ifnet *ifp)
832{
833 int error;
834
835 error = ieee80211_media_change(ifp);
836 if (error != ENETRESET)
837 return error;
838
839 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
840 iwi_init(ifp);
841
842 return 0;
843}
844
845/*
846 * Convert h/w rate code to IEEE rate code.
847 */
848static int
849iwi_cvtrate(int iwirate)
850{
851 switch (iwirate) {
852 case IWI_RATE_DS1: return 2;
853 case IWI_RATE_DS2: return 4;
854 case IWI_RATE_DS5: return 11;
855 case IWI_RATE_DS11: return 22;
856 case IWI_RATE_OFDM6: return 12;
857 case IWI_RATE_OFDM9: return 18;
858 case IWI_RATE_OFDM12: return 24;
859 case IWI_RATE_OFDM18: return 36;
860 case IWI_RATE_OFDM24: return 48;
861 case IWI_RATE_OFDM36: return 72;
862 case IWI_RATE_OFDM48: return 96;
863 case IWI_RATE_OFDM54: return 108;
864 }
865 return 0;
866}
867
868/*
869 * The firmware automatically adapts the transmit speed. We report its current
870 * value here.
871 */
872static void
873iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
874{
875 struct iwi_softc *sc = ifp->if_softc;
876 struct ieee80211com *ic = &sc->sc_ic;
877 int rate;
878
879 imr->ifm_status = IFM_AVALID;
880 imr->ifm_active = IFM_IEEE80211;
881 if (ic->ic_state == IEEE80211_S_RUN)
882 imr->ifm_status |= IFM_ACTIVE;
883
884 /* read current transmission rate from adapter */
885 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE));
886 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode);
887
888 switch (ic->ic_opmode) {
889 case IEEE80211_M_STA:
890 break;
891
892 case IEEE80211_M_IBSS:
893 imr->ifm_active |= IFM_IEEE80211_ADHOC;
894 break;
895
896 case IEEE80211_M_MONITOR:
897 imr->ifm_active |= IFM_IEEE80211_MONITOR;
898 break;
899
900 case IEEE80211_M_AHDEMO:
901 case IEEE80211_M_HOSTAP:
902 /* should not get there */
903 break;
904 }
905}
906
907static int
908iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
909{
910 struct iwi_softc *sc = ic->ic_ifp->if_softc;
911
912 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
913 ieee80211_state_name[ic->ic_state],
914 ieee80211_state_name[nstate], sc->flags));
915
916 switch (nstate) {
917 case IEEE80211_S_SCAN:
918 if (sc->flags & IWI_FLAG_SCANNING)
919 break;
920
921 ieee80211_node_table_reset(&ic->ic_scan);
922 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN;
923 sc->flags |= IWI_FLAG_SCANNING;
924 /* blink the led while scanning */
925 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1);
926 iwi_scan(sc);
927 break;
928
929 case IEEE80211_S_AUTH:
930 iwi_auth_and_assoc(sc);
931 break;
932
933 case IEEE80211_S_RUN:
934 if (ic->ic_opmode == IEEE80211_M_IBSS &&
935 ic->ic_state == IEEE80211_S_SCAN)
936 iwi_auth_and_assoc(sc);
937 else if (ic->ic_opmode == IEEE80211_M_MONITOR)
938 iwi_set_chan(sc, ic->ic_ibss_chan);
939 break;
940 case IEEE80211_S_ASSOC:
941 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0);
942 if (ic->ic_state == IEEE80211_S_AUTH)
943 break;
944 iwi_auth_and_assoc(sc);
945 break;
946
947 case IEEE80211_S_INIT:
948 sc->flags &= ~IWI_FLAG_SCANNING;
949 break;
950 }
951
952 return sc->sc_newstate(ic, nstate, arg);
953}
954
955/*
956 * WME parameters coming from IEEE 802.11e specification. These values are
957 * already declared in ieee80211_proto.c, but they are static so they can't
958 * be reused here.
959 */
960static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = {
961 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */
962 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */
963 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */
964 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */
965};
966
967static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = {
968 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */
969 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */
970 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */
971 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */
972};
973
974static int
975iwi_wme_update(struct ieee80211com *ic)
976{
977#define IWI_EXP2(v) htole16((1 << (v)) - 1)
978#define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
979 struct iwi_softc *sc = ic->ic_ifp->if_softc;
980 struct iwi_wme_params wme[3];
981 const struct wmeParams *wmep;
982 int ac;
983
984 /*
985 * We shall not override firmware default WME values if WME is not
986 * actually enabled.
987 */
988 if (!(ic->ic_flags & IEEE80211_F_WME))
989 return 0;
990
991 for (ac = 0; ac < WME_NUM_AC; ac++) {
992 /* set WME values for current operating mode */
993 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
994 wme[0].aifsn[ac] = wmep->wmep_aifsn;
995 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
996 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
997 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
998 wme[0].acm[ac] = wmep->wmep_acm;
999
1000 /* set WME values for CCK modulation */
1001 wmep = &iwi_wme_cck_params[ac];
1002 wme[1].aifsn[ac] = wmep->wmep_aifsn;
1003 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1004 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1005 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1006 wme[1].acm[ac] = wmep->wmep_acm;
1007
1008 /* set WME values for OFDM modulation */
1009 wmep = &iwi_wme_ofdm_params[ac];
1010 wme[2].aifsn[ac] = wmep->wmep_aifsn;
1011 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin);
1012 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax);
1013 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit);
1014 wme[2].acm[ac] = wmep->wmep_acm;
1015 }
1016
1017 DPRINTF(("Setting WME parameters\n"));
1018 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1);
1019#undef IWI_USEC
1020#undef IWI_EXP2
1021}
1022
1023/*
1024 * Read 16 bits at address 'addr' from the serial EEPROM.
1025 */
1026static uint16_t
1027iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr)
1028{
1029 uint32_t tmp;
1030 uint16_t val;
1031 int n;
1032
1033 /* Clock C once before the first command */
1034 IWI_EEPROM_CTL(sc, 0);
1035 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1038
1039 /* Write start bit (1) */
1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1042
1043 /* Write READ opcode (10) */
1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D);
1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C);
1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1048
1049 /* Write address A7-A0 */
1050 for (n = 7; n >= 0; n--) {
1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1052 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D));
1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S |
1054 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C);
1055 }
1056
1057 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1058
1059 /* Read data Q15-Q0 */
1060 val = 0;
1061 for (n = 15; n >= 0; n--) {
1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C);
1063 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1064 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL);
1065 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n;
1066 }
1067
1068 IWI_EEPROM_CTL(sc, 0);
1069
1070 /* Clear Chip Select and clock C */
1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S);
1072 IWI_EEPROM_CTL(sc, 0);
1073 IWI_EEPROM_CTL(sc, IWI_EEPROM_C);
1074
1075 return val;
1076}
1077
1078/*
1079 * XXX: Hack to set the current channel to the value advertised in beacons or
1080 * probe responses. Only used during AP detection.
1081 */
1082static void
1083iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m)
1084{
1085 struct ieee80211_frame *wh;
1086 uint8_t subtype;
1087 uint8_t *frm, *efrm;
1088
1089 wh = mtod(m, struct ieee80211_frame *);
1090
1091 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1092 return;
1093
1094 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1095
1096 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1097 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1098 return;
1099
1100 frm = (uint8_t *)(wh + 1);
1101 efrm = mtod(m, uint8_t *) + m->m_len;
1102
1103 frm += 12; /* skip tstamp, bintval and capinfo fields */
1104 while (frm < efrm) {
1105 if (*frm == IEEE80211_ELEMID_DSPARMS)
1106#if IEEE80211_CHAN_MAX < 255
1107 if (frm[2] <= IEEE80211_CHAN_MAX)
1108#endif
1109 ic->ic_curchan = &ic->ic_channels[frm[2]];
1110
1111 frm += frm[1] + 2;
1112 }
1113}
1114
1115static struct mbuf *
1116iwi_alloc_rx_buf(struct iwi_softc *sc)
1117{
1118 struct mbuf *m;
1119
1120 MGETHDR(m, M_DONTWAIT, MT_DATA);
1121 if (m == NULL) {
1122 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n");
1123 return NULL;
1124 }
1125
1126 MCLGET(m, M_DONTWAIT);
1127 if (!(m->m_flags & M_EXT)) {
1128 aprint_error_dev(sc->sc_dev,
1129 "could not allocate rx mbuf cluster\n");
1130 m_freem(m);
1131 return NULL;
1132 }
1133
1134 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size;
1135 return m;
1136}
1137
1138static void
1139iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
1140 struct iwi_frame *frame)
1141{
1142 struct ieee80211com *ic = &sc->sc_ic;
1143 struct ifnet *ifp = ic->ic_ifp;
1144 struct mbuf *m, *m_new;
1145 struct ieee80211_frame *wh;
1146 struct ieee80211_node *ni;
1147 int error;
1148
1149 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n",
1150 le16toh(frame->len), frame->chan, frame->rssi_dbm));
1151
1152 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) ||
1153 le16toh(frame->len) > MCLBYTES) {
1154 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev)));
1155 ifp->if_ierrors++;
1156 return;
1157 }
1158
1159 /*
1160 * Try to allocate a new mbuf for this ring element and
1161 * load it before processing the current mbuf. If the ring
1162 * element cannot be reloaded, drop the received packet
1163 * and reuse the old mbuf. In the unlikely case that
1164 * the old mbuf can't be reloaded either, explicitly panic.
1165 *
1166 * XXX Reorganize buffer by moving elements from the logical
1167 * end of the ring to the front instead of dropping.
1168 */
1169 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) {
1170 ifp->if_ierrors++;
1171 return;
1172 }
1173
1174 bus_dmamap_unload(sc->sc_dmat, data->map);
1175
1176 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new,
1177 BUS_DMA_READ | BUS_DMA_NOWAIT);
1178 if (error != 0) {
1179 aprint_error_dev(sc->sc_dev,
1180 "could not load rx buf DMA map\n");
1181 m_freem(m_new);
1182 ifp->if_ierrors++;
1183 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map,
1184 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT);
1185 if (error)
1186 panic("%s: unable to remap rx buf",
1187 device_xname(sc->sc_dev));
1188 return;
1189 }
1190
1191 /*
1192 * New mbuf successfully loaded, update RX ring and continue
1193 * processing.
1194 */
1195 m = data->m;
1196 data->m = m_new;
1197 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr);
1198
1199 /* Finalize mbuf */
1200 m_set_rcvif(m, ifp);
1201 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) +
1202 sizeof (struct iwi_frame) + le16toh(frame->len);
1203
1204 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame));
1205
1206 if (ic->ic_state == IEEE80211_S_SCAN)
1207 iwi_fix_channel(ic, m);
1208
1209 if (sc->sc_drvbpf != NULL) {
1210 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap;
1211
1212 tap->wr_flags = 0;
1213 tap->wr_rate = iwi_cvtrate(frame->rate);
1214 tap->wr_chan_freq =
1215 htole16(ic->ic_channels[frame->chan].ic_freq);
1216 tap->wr_chan_flags =
1217 htole16(ic->ic_channels[frame->chan].ic_flags);
1218 tap->wr_antsignal = frame->signal;
1219 tap->wr_antenna = frame->antenna;
1220
1221 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m);
1222 }
1223 wh = mtod(m, struct ieee80211_frame *);
1224 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
1225
1226 /* Send the frame to the upper layer */
1227 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0);
1228
1229 /* node is no longer needed */
1230 ieee80211_free_node(ni);
1231}
1232
1233static void
1234iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif)
1235{
1236 struct ieee80211com *ic = &sc->sc_ic;
1237 struct iwi_notif_authentication *auth;
1238 struct iwi_notif_association *assoc;
1239 struct iwi_notif_beacon_state *beacon;
1240
1241 switch (notif->type) {
1242 case IWI_NOTIF_TYPE_SCAN_CHANNEL:
1243#ifdef IWI_DEBUG
1244 {
1245 struct iwi_notif_scan_channel *chan =
1246 (struct iwi_notif_scan_channel *)(notif + 1);
1247
1248 DPRINTFN(2, ("Scan of channel %u complete (%u)\n",
1249 ic->ic_channels[chan->nchan].ic_freq, chan->nchan));
1250 }
1251#endif
1252 break;
1253
1254 case IWI_NOTIF_TYPE_SCAN_COMPLETE:
1255#ifdef IWI_DEBUG
1256 {
1257 struct iwi_notif_scan_complete *scan =
1258 (struct iwi_notif_scan_complete *)(notif + 1);
1259
1260 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan,
1261 scan->status));
1262 }
1263#endif
1264
1265 /* monitor mode uses scan to set the channel ... */
1266 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1267 sc->flags &= ~IWI_FLAG_SCANNING;
1268 ieee80211_end_scan(ic);
1269 } else
1270 iwi_set_chan(sc, ic->ic_ibss_chan);
1271 break;
1272
1273 case IWI_NOTIF_TYPE_AUTHENTICATION:
1274 auth = (struct iwi_notif_authentication *)(notif + 1);
1275
1276 DPRINTFN(2, ("Authentication (%u)\n", auth->state));
1277
1278 switch (auth->state) {
1279 case IWI_AUTH_SUCCESS:
1280 ieee80211_node_authorize(ic->ic_bss);
1281 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1);
1282 break;
1283
1284 case IWI_AUTH_FAIL:
1285 break;
1286
1287 case IWI_AUTH_SENT_1:
1288 case IWI_AUTH_RECV_2:
1289 case IWI_AUTH_SEQ1_PASS:
1290 break;
1291
1292 case IWI_AUTH_SEQ1_FAIL:
1293 break;
1294
1295 default:
1296 aprint_error_dev(sc->sc_dev,
1297 "unknown authentication state %u\n", auth->state);
1298 }
1299 break;
1300
1301 case IWI_NOTIF_TYPE_ASSOCIATION:
1302 assoc = (struct iwi_notif_association *)(notif + 1);
1303
1304 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state,
1305 assoc->status));
1306
1307 switch (assoc->state) {
1308 case IWI_AUTH_SUCCESS:
1309 /* re-association, do nothing */
1310 break;
1311
1312 case IWI_ASSOC_SUCCESS:
1313 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1314 break;
1315
1316 case IWI_ASSOC_FAIL:
1317 ieee80211_begin_scan(ic, 1);
1318 break;
1319
1320 default:
1321 aprint_error_dev(sc->sc_dev,
1322 "unknown association state %u\n", assoc->state);
1323 }
1324 break;
1325
1326 case IWI_NOTIF_TYPE_BEACON:
1327 beacon = (struct iwi_notif_beacon_state *)(notif + 1);
1328
1329 if (beacon->state == IWI_BEACON_MISS) {
1330 DPRINTFN(5, ("%s: %u beacon(s) missed\n",
1331 device_xname(sc->sc_dev), le32toh(beacon->number)));
1332 }
1333 break;
1334
1335 case IWI_NOTIF_TYPE_FRAG_LENGTH:
1336 case IWI_NOTIF_TYPE_LINK_QUALITY:
1337 case IWI_NOTIF_TYPE_TGI_TX_KEY:
1338 case IWI_NOTIF_TYPE_CALIBRATION:
1339 case IWI_NOTIF_TYPE_NOISE:
1340 DPRINTFN(5, ("Notification (%u)\n", notif->type));
1341 break;
1342
1343 default:
1344 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n",
1345 device_xname(sc->sc_dev), notif->type, notif->flags,
1346 le16toh(notif->len)));
1347 }
1348}
1349
1350static void
1351iwi_cmd_intr(struct iwi_softc *sc)
1352{
1353
1354 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX);
1355
1356 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map,
1357 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE,
1358 BUS_DMASYNC_POSTWRITE);
1359
1360 wakeup(&sc->cmdq.desc[sc->cmdq.next]);
1361
1362 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count;
1363
1364 if (--sc->cmdq.queued > 0) {
1365 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count);
1366 }
1367}
1368
1369static void
1370iwi_rx_intr(struct iwi_softc *sc)
1371{
1372 struct iwi_rx_data *data;
1373 struct iwi_hdr *hdr;
1374 uint32_t hw;
1375
1376 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX);
1377
1378 for (; sc->rxq.cur != hw;) {
1379 data = &sc->rxq.data[sc->rxq.cur];
1380
1381 bus_dmamap_sync(sc->sc_dmat, data->map, 0,
1382 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD);
1383
1384 hdr = mtod(data->m, struct iwi_hdr *);
1385
1386 switch (hdr->type) {
1387 case IWI_HDR_TYPE_FRAME:
1388 iwi_frame_intr(sc, data, sc->rxq.cur,
1389 (struct iwi_frame *)(hdr + 1));
1390 break;
1391
1392 case IWI_HDR_TYPE_NOTIF:
1393 iwi_notification_intr(sc,
1394 (struct iwi_notif *)(hdr + 1));
1395 break;
1396
1397 default:
1398 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n",
1399 hdr->type);
1400 }
1401
1402 bus_dmamap_sync(sc->sc_dmat, data->map, 0,
1403 data->map->dm_mapsize, BUS_DMASYNC_PREREAD);
1404
1405 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
1406
1407 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count;
1408 }
1409
1410 /* Tell the firmware what we have processed */
1411 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1;
1412 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw);
1413}
1414
1415static void
1416iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq)
1417{
1418 struct ifnet *ifp = &sc->sc_if;
1419 struct iwi_tx_data *data;
1420 uint32_t hw;
1421
1422 hw = CSR_READ_4(sc, txq->csr_ridx);
1423
1424 for (; txq->next != hw;) {
1425 data = &txq->data[txq->next];
1426
1427 bus_dmamap_sync(sc->sc_dmat, data->map, 0,
1428 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
1429 bus_dmamap_unload(sc->sc_dmat, data->map);
1430 m_freem(data->m);
1431 data->m = NULL;
1432 ieee80211_free_node(data->ni);
1433 data->ni = NULL;
1434
1435 DPRINTFN(15, ("tx done idx=%u\n", txq->next));
1436
1437 ifp->if_opackets++;
1438
1439 txq->queued--;
1440 txq->next = (txq->next + 1) % txq->count;
1441 }
1442
1443 sc->sc_tx_timer = 0;
1444 ifp->if_flags &= ~IFF_OACTIVE;
1445
1446 /* Call start() since some buffer descriptors have been released */
1447 (*ifp->if_start)(ifp);
1448}
1449
1450static int
1451iwi_intr(void *arg)
1452{
1453 struct iwi_softc *sc = arg;
1454 uint32_t r;
1455
1456 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff)
1457 return 0;
1458
1459 /* Acknowledge interrupts */
1460 CSR_WRITE_4(sc, IWI_CSR_INTR, r);
1461
1462 if (r & IWI_INTR_FATAL_ERROR) {
1463 aprint_error_dev(sc->sc_dev, "fatal error\n");
1464 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP;
1465 iwi_stop(&sc->sc_if, 1);
1466 return (1);
1467 }
1468
1469 if (r & IWI_INTR_FW_INITED) {
1470 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
1471 wakeup(sc);
1472 }
1473
1474 if (r & IWI_INTR_RADIO_OFF) {
1475 DPRINTF(("radio transmitter off\n"));
1476 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP;
1477 iwi_stop(&sc->sc_if, 1);
1478 return (1);
1479 }
1480
1481 if (r & IWI_INTR_CMD_DONE)
1482 iwi_cmd_intr(sc);
1483
1484 if (r & IWI_INTR_TX1_DONE)
1485 iwi_tx_intr(sc, &sc->txq[0]);
1486
1487 if (r & IWI_INTR_TX2_DONE)
1488 iwi_tx_intr(sc, &sc->txq[1]);
1489
1490 if (r & IWI_INTR_TX3_DONE)
1491 iwi_tx_intr(sc, &sc->txq[2]);
1492
1493 if (r & IWI_INTR_TX4_DONE)
1494 iwi_tx_intr(sc, &sc->txq[3]);
1495
1496 if (r & IWI_INTR_RX_DONE)
1497 iwi_rx_intr(sc);
1498
1499 if (r & IWI_INTR_PARITY_ERROR)
1500 aprint_error_dev(sc->sc_dev, "parity error\n");
1501
1502 return 1;
1503}
1504
1505static int
1506iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len,
1507 int async)
1508{
1509 struct iwi_cmd_desc *desc;
1510
1511 desc = &sc->cmdq.desc[sc->cmdq.cur];
1512
1513 desc->hdr.type = IWI_HDR_TYPE_COMMAND;
1514 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1515 desc->type = type;
1516 desc->len = len;
1517 memcpy(desc->data, data, len);
1518
1519 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map,
1520 sc->cmdq.cur * IWI_CMD_DESC_SIZE,
1521 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE);
1522
1523 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n",
1524 sc->cmdq.cur, type, len, async));
1525
1526 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count;
1527
1528 if (++sc->cmdq.queued == 1)
1529 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
1530
1531 return async ? 0 : tsleep(desc, 0, "iwicmd", hz);
1532}
1533
1534static void
1535iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in)
1536{
1537 struct iwi_ibssnode node;
1538
1539 /* write node information into NIC memory */
1540 memset(&node, 0, sizeof node);
1541 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr);
1542
1543 CSR_WRITE_REGION_1(sc,
1544 IWI_CSR_NODE_BASE + in->in_station * sizeof node,
1545 (uint8_t *)&node, sizeof node);
1546}
1547
1548static int
1549iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni,
1550 int ac)
1551{
1552 struct iwi_softc *sc = ifp->if_softc;
1553 struct ieee80211com *ic = &sc->sc_ic;
1554 struct iwi_node *in = (struct iwi_node *)ni;
1555 struct ieee80211_frame *wh;
1556 struct ieee80211_key *k;
1557 const struct chanAccParams *cap;
1558 struct iwi_tx_ring *txq = &sc->txq[ac];
1559 struct iwi_tx_data *data;
1560 struct iwi_tx_desc *desc;
1561 struct mbuf *mnew;
1562 int error, hdrlen, i, noack = 0;
1563
1564 wh = mtod(m0, struct ieee80211_frame *);
1565
1566 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) {
1567 hdrlen = sizeof (struct ieee80211_qosframe);
1568 cap = &ic->ic_wme.wme_chanParams;
1569 noack = cap->cap_wmeParams[ac].wmep_noackPolicy;
1570 } else
1571 hdrlen = sizeof (struct ieee80211_frame);
1572
1573 /*
1574 * This is only used in IBSS mode where the firmware expect an index
1575 * in a h/w table instead of a destination address.
1576 */
1577 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) {
1578 in->in_station = iwi_alloc_unr(sc);
1579
1580 if (in->in_station == -1) { /* h/w table is full */
1581 m_freem(m0);
1582 ieee80211_free_node(ni);
1583 ifp->if_oerrors++;
1584 return 0;
1585 }
1586 iwi_write_ibssnode(sc, in);
1587 }
1588
1589 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1590 k = ieee80211_crypto_encap(ic, ni, m0);
1591 if (k == NULL) {
1592 m_freem(m0);
1593 return ENOBUFS;
1594 }
1595
1596 /* packet header may have moved, reset our local pointer */
1597 wh = mtod(m0, struct ieee80211_frame *);
1598 }
1599
1600 if (sc->sc_drvbpf != NULL) {
1601 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap;
1602
1603 tap->wt_flags = 0;
1604 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq);
1605 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags);
1606
1607 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
1608 }
1609
1610 data = &txq->data[txq->cur];
1611 desc = &txq->desc[txq->cur];
1612
1613 /* save and trim IEEE802.11 header */
1614 m_copydata(m0, 0, hdrlen, (void *)&desc->wh);
1615 m_adj(m0, hdrlen);
1616
1617 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
1618 BUS_DMA_WRITE | BUS_DMA_NOWAIT);
1619 if (error != 0 && error != EFBIG) {
1620 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n",
1621 error);
1622 m_freem(m0);
1623 return error;
1624 }
1625 if (error != 0) {
1626 /* too many fragments, linearize */
1627
1628 MGETHDR(mnew, M_DONTWAIT, MT_DATA);
1629 if (mnew == NULL) {
1630 m_freem(m0);
1631 return ENOMEM;
1632 }
1633
1634 M_COPY_PKTHDR(mnew, m0);
1635
1636 /* If the data won't fit in the header, get a cluster */
1637 if (m0->m_pkthdr.len > MHLEN) {
1638 MCLGET(mnew, M_DONTWAIT);
1639 if (!(mnew->m_flags & M_EXT)) {
1640 m_freem(m0);
1641 m_freem(mnew);
1642 return ENOMEM;
1643 }
1644 }
1645 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *));
1646 m_freem(m0);
1647 mnew->m_len = mnew->m_pkthdr.len;
1648 m0 = mnew;
1649
1650 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
1651 BUS_DMA_WRITE | BUS_DMA_NOWAIT);
1652 if (error != 0) {
1653 aprint_error_dev(sc->sc_dev,
1654 "could not map mbuf (error %d)\n", error);
1655 m_freem(m0);
1656 return error;
1657 }
1658 }
1659
1660 data->m = m0;
1661 data->ni = ni;
1662
1663 desc->hdr.type = IWI_HDR_TYPE_DATA;
1664 desc->hdr.flags = IWI_HDR_FLAG_IRQ;
1665 desc->station =
1666 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0;
1667 desc->cmd = IWI_DATA_CMD_TX;
1668 desc->len = htole16(m0->m_pkthdr.len);
1669 desc->flags = 0;
1670 desc->xflags = 0;
1671
1672 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1))
1673 desc->flags |= IWI_DATA_FLAG_NEED_ACK;
1674
1675#if 0
1676 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
1677 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP;
1678 desc->wep_txkey = ic->ic_crypto.cs_def_txkey;
1679 } else
1680#endif
1681 desc->flags |= IWI_DATA_FLAG_NO_WEP;
1682
1683 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1684 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE;
1685
1686 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS)
1687 desc->xflags |= IWI_DATA_XFLAG_QOS;
1688
1689 if (ic->ic_curmode == IEEE80211_MODE_11B)
1690 desc->xflags |= IWI_DATA_XFLAG_CCK;
1691
1692 desc->nseg = htole32(data->map->dm_nsegs);
1693 for (i = 0; i < data->map->dm_nsegs; i++) {
1694 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr);
1695 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len);
1696 }
1697
1698 bus_dmamap_sync(sc->sc_dmat, txq->desc_map,
1699 txq->cur * IWI_TX_DESC_SIZE,
1700 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE);
1701
1702 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
1703 BUS_DMASYNC_PREWRITE);
1704
1705 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n",
1706 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg)));
1707
1708 /* Inform firmware about this new packet */
1709 txq->queued++;
1710 txq->cur = (txq->cur + 1) % txq->count;
1711 CSR_WRITE_4(sc, txq->csr_widx, txq->cur);
1712
1713 return 0;
1714}
1715
1716static void
1717iwi_start(struct ifnet *ifp)
1718{
1719 struct iwi_softc *sc = ifp->if_softc;
1720 struct ieee80211com *ic = &sc->sc_ic;
1721 struct mbuf *m0;
1722 struct ether_header *eh;
1723 struct ieee80211_node *ni;
1724 int ac;
1725
1726 if (ic->ic_state != IEEE80211_S_RUN)
1727 return;
1728
1729 for (;;) {
1730 IF_DEQUEUE(&ifp->if_snd, m0);
1731 if (m0 == NULL)
1732 break;
1733
1734 if (m0->m_len < sizeof (struct ether_header) &&
1735 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) {
1736 ifp->if_oerrors++;
1737 continue;
1738 }
1739
1740 eh = mtod(m0, struct ether_header *);
1741 ni = ieee80211_find_txnode(ic, eh->ether_dhost);
1742 if (ni == NULL) {
1743 m_freem(m0);
1744 ifp->if_oerrors++;
1745 continue;
1746 }
1747
1748 /* classify mbuf so we can find which tx ring to use */
1749 if (ieee80211_classify(ic, m0, ni) != 0) {
1750 m_freem(m0);
1751 ieee80211_free_node(ni);
1752 ifp->if_oerrors++;
1753 continue;
1754 }
1755
1756 /* no QoS encapsulation for EAPOL frames */
1757 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ?
1758 M_WME_GETAC(m0) : WME_AC_BE;
1759
1760 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
1761 /* there is no place left in this ring */
1762 IF_PREPEND(&ifp->if_snd, m0);
1763 ifp->if_flags |= IFF_OACTIVE;
1764 break;
1765 }
1766
1767 bpf_mtap(ifp, m0);
1768
1769 m0 = ieee80211_encap(ic, m0, ni);
1770 if (m0 == NULL) {
1771 ieee80211_free_node(ni);
1772 ifp->if_oerrors++;
1773 continue;
1774 }
1775
1776 bpf_mtap3(ic->ic_rawbpf, m0);
1777
1778 if (iwi_tx_start(ifp, m0, ni, ac) != 0) {
1779 ieee80211_free_node(ni);
1780 ifp->if_oerrors++;
1781 break;
1782 }
1783
1784 /* start watchdog timer */
1785 sc->sc_tx_timer = 5;
1786 ifp->if_timer = 1;
1787 }
1788}
1789
1790static void
1791iwi_watchdog(struct ifnet *ifp)
1792{
1793 struct iwi_softc *sc = ifp->if_softc;
1794
1795 ifp->if_timer = 0;
1796
1797 if (sc->sc_tx_timer > 0) {
1798 if (--sc->sc_tx_timer == 0) {
1799 aprint_error_dev(sc->sc_dev, "device timeout\n");
1800 ifp->if_oerrors++;
1801 ifp->if_flags &= ~IFF_UP;
1802 iwi_stop(ifp, 1);
1803 return;
1804 }
1805 ifp->if_timer = 1;
1806 }
1807
1808 ieee80211_watchdog(&sc->sc_ic);
1809}
1810
1811static int
1812iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl)
1813{
1814 uint32_t size, buf[128];
1815
1816 if (!(sc->flags & IWI_FLAG_FW_INITED)) {
1817 memset(buf, 0, sizeof buf);
1818 return copyout(buf, tbl, sizeof buf);
1819 }
1820
1821 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1);
1822 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size);
1823
1824 return copyout(buf, tbl, sizeof buf);
1825}
1826
1827static int
1828iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data)
1829{
1830#define IS_RUNNING(ifp) \
1831 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING))
1832
1833 struct iwi_softc *sc = ifp->if_softc;
1834 struct ieee80211com *ic = &sc->sc_ic;
1835 struct ifreq *ifr = (struct ifreq *)data;
1836 int s, error = 0;
1837 int val;
1838
1839 s = splnet();
1840
1841 switch (cmd) {
1842 case SIOCSIFFLAGS:
1843 if ((error = ifioctl_common(ifp, cmd, data)) != 0)
1844 break;
1845 if (ifp->if_flags & IFF_UP) {
1846 if (!(ifp->if_flags & IFF_RUNNING))
1847 iwi_init(ifp);
1848 } else {
1849 if (ifp->if_flags & IFF_RUNNING)
1850 iwi_stop(ifp, 1);
1851 }
1852 break;
1853
1854 case SIOCADDMULTI:
1855 case SIOCDELMULTI:
1856 /* XXX no h/w multicast filter? --dyoung */
1857 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {
1858 /* setup multicast filter, etc */
1859 error = 0;
1860 }
1861 break;
1862
1863 case SIOCGTABLE0:
1864 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data);
1865 break;
1866
1867 case SIOCGRADIO:
1868 val = !iwi_getrfkill(sc);
1869 error = copyout(&val, (int *)ifr->ifr_data, sizeof val);
1870 break;
1871
1872 case SIOCSIFMEDIA:
1873 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) {
1874 sc->sc_fwname = "ipw2200-ibss.fw";
1875 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) {
1876 sc->sc_fwname = "ipw2200-sniffer.fw";
1877 } else {
1878 sc->sc_fwname = "ipw2200-bss.fw";
1879 }
1880 error = iwi_cache_firmware(sc);
1881 if (error)
1882 break;
1883 /* FALLTRHOUGH */
1884
1885 default:
1886 error = ieee80211_ioctl(&sc->sc_ic, cmd, data);
1887
1888 if (error == ENETRESET) {
1889 if (IS_RUNNING(ifp) &&
1890 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL))
1891 iwi_init(ifp);
1892 error = 0;
1893 }
1894 }
1895
1896 splx(s);
1897 return error;
1898#undef IS_RUNNING
1899}
1900
1901static void
1902iwi_stop_master(struct iwi_softc *sc)
1903{
1904 int ntries;
1905
1906 /* Disable interrupts */
1907 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
1908
1909 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER);
1910 for (ntries = 0; ntries < 5; ntries++) {
1911 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
1912 break;
1913 DELAY(10);
1914 }
1915 if (ntries == 5)
1916 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n");
1917
1918 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
1919 IWI_RST_PRINCETON_RESET);
1920
1921 sc->flags &= ~IWI_FLAG_FW_INITED;
1922}
1923
1924static int
1925iwi_reset(struct iwi_softc *sc)
1926{
1927 int i, ntries;
1928
1929 iwi_stop_master(sc);
1930
1931 /* Move adapter to D0 state */
1932 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) |
1933 IWI_CTL_INIT);
1934
1935 /* Initialize Phase-Locked Level (PLL) */
1936 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST);
1937
1938 /* Wait for clock stabilization */
1939 for (ntries = 0; ntries < 1000; ntries++) {
1940 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY)
1941 break;
1942 DELAY(200);
1943 }
1944 if (ntries == 1000) {
1945 aprint_error_dev(sc->sc_dev,
1946 "timeout waiting for clock stabilization\n");
1947 return ETIMEDOUT;
1948 }
1949
1950 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
1951 IWI_RST_SW_RESET);
1952
1953 DELAY(10);
1954
1955 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) |
1956 IWI_CTL_INIT);
1957
1958 /* Clear NIC memory */
1959 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0);
1960 for (i = 0; i < 0xc000; i++)
1961 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
1962
1963 return 0;
1964}
1965
1966static int
1967iwi_load_ucode(struct iwi_softc *sc, void *uc, int size)
1968{
1969 uint16_t *w;
1970 int ntries, i;
1971
1972 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) |
1973 IWI_RST_STOP_MASTER);
1974 for (ntries = 0; ntries < 5; ntries++) {
1975 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED)
1976 break;
1977 DELAY(10);
1978 }
1979 if (ntries == 5) {
1980 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n");
1981 return ETIMEDOUT;
1982 }
1983
1984 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1985 DELAY(5000);
1986 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) &
1987 ~IWI_RST_PRINCETON_RESET);
1988 DELAY(5000);
1989 MEM_WRITE_4(sc, 0x3000e0, 0);
1990 DELAY(1000);
1991 MEM_WRITE_4(sc, 0x300004, 1);
1992 DELAY(1000);
1993 MEM_WRITE_4(sc, 0x300004, 0);
1994 DELAY(1000);
1995 MEM_WRITE_1(sc, 0x200000, 0x00);
1996 MEM_WRITE_1(sc, 0x200000, 0x40);
1997 DELAY(1000);
1998
1999 /* Adapter is buggy, we must set the address for each word */
2000 for (w = uc; size > 0; w++, size -= 2)
2001 MEM_WRITE_2(sc, 0x200010, htole16(*w));
2002
2003 MEM_WRITE_1(sc, 0x200000, 0x00);
2004 MEM_WRITE_1(sc, 0x200000, 0x80);
2005
2006 /* Wait until we get a response in the uc queue */
2007 for (ntries = 0; ntries < 100; ntries++) {
2008 if (MEM_READ_1(sc, 0x200000) & 1)
2009 break;
2010 DELAY(100);
2011 }
2012 if (ntries == 100) {
2013 aprint_error_dev(sc->sc_dev,
2014 "timeout waiting for ucode to initialize\n");
2015 return ETIMEDOUT;
2016 }
2017
2018 /* Empty the uc queue or the firmware will not initialize properly */
2019 for (i = 0; i < 7; i++)
2020 MEM_READ_4(sc, 0x200004);
2021
2022 MEM_WRITE_1(sc, 0x200000, 0x00);
2023
2024 return 0;
2025}
2026
2027/* macro to handle unaligned little endian data in firmware image */
2028#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2029static int
2030iwi_load_firmware(struct iwi_softc *sc, void *fw, int size)
2031{
2032 bus_dmamap_t map;
2033 u_char *p, *end;
2034 uint32_t sentinel, ctl, sum;
2035 uint32_t cs, sl, cd, cl;
2036 int ntries, nsegs, error;
2037 int sn;
2038
2039 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1;
2040
2041 /* Create a DMA map for the firmware image */
2042 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0,
2043 BUS_DMA_NOWAIT, &map);
2044 if (error != 0) {
2045 aprint_error_dev(sc->sc_dev,
2046 "could not create firmware DMA map\n");
2047 map = NULL;
2048 goto fail1;
2049 }
2050
2051 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL,
2052 BUS_DMA_NOWAIT | BUS_DMA_WRITE);
2053 if (error != 0) {
2054 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n",
2055 error);
2056 goto fail2;
2057 }
2058
2059 /* Make sure the adapter will get up-to-date values */
2060 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE);
2061
2062 /* Tell the adapter where the command blocks are stored */
2063 MEM_WRITE_4(sc, 0x3000a0, 0x27000);
2064
2065 /*
2066 * Store command blocks into adapter's internal memory using register
2067 * indirections. The adapter will read the firmware image through DMA
2068 * using information stored in command blocks.
2069 */
2070 p = fw;
2071 end = p + size;
2072 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000);
2073
2074 sn = 0;
2075 sl = cl = 0;
2076 cs = cd = 0;
2077 while (p < end) {
2078 if (sl == 0) {
2079 cs = map->dm_segs[sn].ds_addr;
2080 sl = map->dm_segs[sn].ds_len;
2081 sn++;
2082 }
2083 if (cl == 0) {
2084 cd = GETLE32(p); p += 4; cs += 4; sl -= 4;
2085 cl = GETLE32(p); p += 4; cs += 4; sl -= 4;
2086 }
2087 while (sl > 0 && cl > 0) {
2088 int len = min(cl, sl);
2089
2090 sl -= len;
2091 cl -= len;
2092 p += len;
2093
2094 while (len > 0) {
2095 int mlen = min(len, IWI_CB_MAXDATALEN);
2096
2097 ctl = IWI_CB_DEFAULT_CTL | mlen;
2098 sum = ctl ^ cs ^ cd;
2099
2100 /* Write a command block */
2101 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl);
2102 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs);
2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd);
2104 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum);
2105
2106 cs += mlen;
2107 cd += mlen;
2108 len -= mlen;
2109 }
2110 }
2111 }
2112
2113 /* Write a fictive final command block (sentinel) */
2114 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR);
2115 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0);
2116
2117 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) &
2118 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER));
2119
2120 /* Tell the adapter to start processing command blocks */
2121 MEM_WRITE_4(sc, 0x3000a4, 0x540100);
2122
2123 /* Wait until the adapter has processed all command blocks */
2124 for (ntries = 0; ntries < 400; ntries++) {
2125 if (MEM_READ_4(sc, 0x3000d0) >= sentinel)
2126 break;
2127 DELAY(100);
2128 }
2129 if (ntries == 400) {
2130 aprint_error_dev(sc->sc_dev, "timeout processing cb\n");
2131 error = ETIMEDOUT;
2132 goto fail3;
2133 }
2134
2135 /* We're done with command blocks processing */
2136 MEM_WRITE_4(sc, 0x3000a4, 0x540c00);
2137
2138 /* Allow interrupts so we know when the firmware is inited */
2139 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK);
2140
2141 /* Tell the adapter to initialize the firmware */
2142 CSR_WRITE_4(sc, IWI_CSR_RST, 0);
2143 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) |
2144 IWI_CTL_ALLOW_STANDBY);
2145
2146 /* Wait at most one second for firmware initialization to complete */
2147 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) {
2148 aprint_error_dev(sc->sc_dev,
2149 "timeout waiting for firmware initialization to complete\n");
2150 goto fail3;
2151 }
2152
2153fail3:
2154 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE);
2155 bus_dmamap_unload(sc->sc_dmat, map);
2156fail2:
2157 if (map != NULL)
2158 bus_dmamap_destroy(sc->sc_dmat, map);
2159
2160fail1:
2161 return error;
2162}
2163
2164/*
2165 * Store firmware into kernel memory so we can download it when we need to,
2166 * e.g when the adapter wakes up from suspend mode.
2167 */
2168static int
2169iwi_cache_firmware(struct iwi_softc *sc)
2170{
2171 struct iwi_firmware *kfw = &sc->fw;
2172 firmware_handle_t fwh;
2173 struct iwi_firmware_hdr *hdr;
2174 off_t size;
2175 char *fw;
2176 int error;
2177
2178 if (iwi_accept_eula == 0) {
2179 aprint_error_dev(sc->sc_dev,
2180 "EULA not accepted; please see the iwi(4) man page.\n");
2181 return EPERM;
2182 }
2183
2184 iwi_free_firmware(sc);
2185 error = firmware_open("if_iwi", sc->sc_fwname, &fwh);
2186 if (error != 0) {
2187 aprint_error_dev(sc->sc_dev, "firmware_open failed\n");
2188 goto fail1;
2189 }
2190
2191 size = firmware_get_size(fwh);
2192 if (size < sizeof(struct iwi_firmware_hdr)) {
2193 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n",
2194 sc->sc_fwname);
2195 error = EIO;
2196 goto fail1;
2197 }
2198 sc->sc_blobsize = size;
2199
2200 sc->sc_blob = firmware_malloc(size);
2201 if (sc->sc_blob == NULL) {
2202 error = ENOMEM;
2203 firmware_close(fwh);
2204 goto fail1;
2205 }
2206
2207 error = firmware_read(fwh, 0, sc->sc_blob, size);
2208 firmware_close(fwh);
2209 if (error != 0)
2210 goto fail2;
2211
2212 hdr = (struct iwi_firmware_hdr *)sc->sc_blob;
2213 hdr->version = le32toh(hdr->version);
2214 hdr->bsize = le32toh(hdr->bsize);
2215 hdr->usize = le32toh(hdr->usize);
2216 hdr->fsize = le32toh(hdr->fsize);
2217
2218 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) {
2219 aprint_error_dev(sc->sc_dev, "image '%s' too small\n",
2220 sc->sc_fwname);
2221 error = EIO;
2222 goto fail2;
2223 }
2224
2225 DPRINTF(("firmware version = %d\n", hdr->version));
2226 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) ||
2227 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) {
2228 aprint_error_dev(sc->sc_dev,
2229 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname,
2230 IWI_FW_GET_MAJOR(hdr->version),
2231 IWI_FW_GET_MINOR(hdr->version),
2232 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR);
2233 error = EIO;
2234 goto fail2;
2235 }
2236
2237 kfw->boot_size = hdr->bsize;
2238 kfw->ucode_size = hdr->usize;
2239 kfw->main_size = hdr->fsize;
2240
2241 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr);
2242 kfw->boot = fw;
2243 fw += kfw->boot_size;
2244 kfw->ucode = fw;
2245 fw += kfw->ucode_size;
2246 kfw->main = fw;
2247
2248 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n",
2249 kfw->boot, kfw->ucode, kfw->main));
2250 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n",
2251 kfw->boot_size, kfw->ucode_size, kfw->main_size));
2252
2253 sc->flags |= IWI_FLAG_FW_CACHED;
2254
2255 return 0;
2256
2257
2258fail2: firmware_free(sc->sc_blob, sc->sc_blobsize);
2259fail1:
2260 return error;
2261}
2262
2263static void
2264iwi_free_firmware(struct iwi_softc *sc)
2265{
2266
2267 if (!(sc->flags & IWI_FLAG_FW_CACHED))
2268 return;
2269
2270 firmware_free(sc->sc_blob, sc->sc_blobsize);
2271
2272 sc->flags &= ~IWI_FLAG_FW_CACHED;
2273}
2274
2275static int
2276iwi_config(struct iwi_softc *sc)
2277{
2278 struct ieee80211com *ic = &sc->sc_ic;
2279 struct ifnet *ifp = &sc->sc_if;
2280 struct iwi_configuration config;
2281 struct iwi_rateset rs;
2282 struct iwi_txpower power;
2283 struct ieee80211_key *wk;
2284 struct iwi_wep_key wepkey;
2285 uint32_t data;
2286 int error, nchan, i;
2287
2288 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl));
2289 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr)));
2290 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr,
2291 IEEE80211_ADDR_LEN, 0);
2292 if (error != 0)
2293 return error;
2294
2295 memset(&config, 0, sizeof config);
2296 config.bluetooth_coexistence = sc->bluetooth;
2297 config.antenna = sc->antenna;
2298 config.silence_threshold = 0x1e;
2299 config.multicast_enabled = 1;
2300 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2301 config.disable_unicast_decryption = 1;
2302 config.disable_multicast_decryption = 1;
2303 DPRINTF(("Configuring adapter\n"));
2304 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config,
2305 0);
2306 if (error != 0)
2307 return error;
2308
2309 data = htole32(IWI_POWER_MODE_CAM);
2310 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2311 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0);
2312 if (error != 0)
2313 return error;
2314
2315 data = htole32(ic->ic_rtsthreshold);
2316 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2317 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0);
2318 if (error != 0)
2319 return error;
2320
2321 data = htole32(ic->ic_fragthreshold);
2322 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data)));
2323 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0);
2324 if (error != 0)
2325 return error;
2326
2327 /*
2328 * Set default Tx power for 802.11b/g and 802.11a channels.
2329 */
2330 nchan = 0;
2331 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
2332 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]))
2333 continue;
2334 power.chan[nchan].chan = i;
2335 power.chan[nchan].power = IWI_TXPOWER_MAX;
2336 nchan++;
2337 }
2338 power.nchan = nchan;
2339
2340 power.mode = IWI_MODE_11G;
2341 DPRINTF(("Setting .11g channels tx power\n"));
2342 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0);
2343 if (error != 0)
2344 return error;
2345
2346 power.mode = IWI_MODE_11B;
2347 DPRINTF(("Setting .11b channels tx power\n"));
2348 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0);
2349 if (error != 0)
2350 return error;
2351
2352 nchan = 0;
2353 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
2354 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]))
2355 continue;
2356 power.chan[nchan].chan = i;
2357 power.chan[nchan].power = IWI_TXPOWER_MAX;
2358 nchan++;
2359 }
2360 power.nchan = nchan;
2361
2362 if (nchan > 0) { /* 2915ABG only */
2363 power.mode = IWI_MODE_11A;
2364 DPRINTF(("Setting .11a channels tx power\n"));
2365 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power,
2366 0);
2367 if (error != 0)
2368 return error;
2369 }
2370
2371 rs.mode = IWI_MODE_11G;
2372 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2373 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates;
2374 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates,
2375 rs.nrates);
2376 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates));
2377 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0);
2378 if (error != 0)
2379 return error;
2380
2381 rs.mode = IWI_MODE_11A;
2382 rs.type = IWI_RATESET_TYPE_SUPPORTED;
2383 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates;
2384 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates,
2385 rs.nrates);
2386 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates));
2387 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0);
2388 if (error != 0)
2389 return error;
2390
2391 /* if we have a desired ESSID, set it now */
2392 if (ic->ic_des_esslen != 0) {
2393#ifdef IWI_DEBUG
2394 if (iwi_debug > 0) {
2395 printf("Setting desired ESSID to ");
2396 ieee80211_print_essid(ic->ic_des_essid,
2397 ic->ic_des_esslen);
2398 printf("\n");
2399 }
2400#endif
2401 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid,
2402 ic->ic_des_esslen, 0);
2403 if (error != 0)
2404 return error;
2405 }
2406
2407 cprng_fast(&data, sizeof(data));
2408 data = htole32(data);
2409 DPRINTF(("Setting initialization vector to %u\n", le32toh(data)));
2410 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0);
2411 if (error != 0)
2412 return error;
2413
2414 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
2415 /* XXX iwi_setwepkeys? */
2416 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2417 wk = &ic->ic_crypto.cs_nw_keys[i];
2418
2419 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY;
2420 wepkey.idx = i;
2421 wepkey.len = wk->wk_keylen;
2422 memset(wepkey.key, 0, sizeof wepkey.key);
2423 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2424 DPRINTF(("Setting wep key index %u len %u\n",
2425 wepkey.idx, wepkey.len));
2426 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey,
2427 sizeof wepkey, 0);
2428 if (error != 0)
2429 return error;
2430 }
2431 }
2432
2433 /* Enable adapter */
2434 DPRINTF(("Enabling adapter\n"));
2435 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0);
2436}
2437
2438static int
2439iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan)
2440{
2441 struct ieee80211com *ic = &sc->sc_ic;
2442 struct iwi_scan_v2 scan;
2443
2444 (void)memset(&scan, 0, sizeof scan);
2445
2446 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000);
2447 scan.channels[0] = 1 |
2448 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ);
2449 scan.channels[1] = ieee80211_chan2ieee(ic, chan);
2450 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE);
2451
2452 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan)));
2453 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1);
2454}
2455
2456static int
2457iwi_scan(struct iwi_softc *sc)
2458{
2459 struct ieee80211com *ic = &sc->sc_ic;
2460 struct iwi_scan_v2 scan;
2461 uint32_t type;
2462 uint8_t *p;
2463 int i, count, idx;
2464
2465 (void)memset(&scan, 0, sizeof scan);
2466 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] =
2467 htole16(sc->dwelltime);
2468 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] =
2469 htole16(sc->dwelltime);
2470
2471 /* tell the firmware about the desired essid */
2472 if (ic->ic_des_esslen) {
2473 int error;
2474
2475 DPRINTF(("%s: Setting adapter desired ESSID to %s\n",
2476 __func__, ic->ic_des_essid));
2477
2478 error = iwi_cmd(sc, IWI_CMD_SET_ESSID,
2479 ic->ic_des_essid, ic->ic_des_esslen, 1);
2480 if (error)
2481 return error;
2482
2483 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT;
2484 } else {
2485 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST;
2486 }
2487
2488 p = &scan.channels[0];
2489 count = idx = 0;
2490 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
2491 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) &&
2492 isset(ic->ic_chan_active, i)) {
2493 *++p = i;
2494 count++;
2495 idx++;
2496 iwi_scan_type_set(scan, idx, type);
2497 }
2498 }
2499 if (count) {
2500 *(p - count) = IWI_CHAN_5GHZ | count;
2501 p++;
2502 }
2503
2504 count = 0;
2505 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
2506 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) &&
2507 isset(ic->ic_chan_active, i)) {
2508 *++p = i;
2509 count++;
2510 idx++;
2511 iwi_scan_type_set(scan, idx, type);
2512 }
2513 }
2514 *(p - count) = IWI_CHAN_2GHZ | count;
2515
2516 DPRINTF(("Start scanning\n"));
2517 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1);
2518}
2519
2520static int
2521iwi_auth_and_assoc(struct iwi_softc *sc)
2522{
2523 struct ieee80211com *ic = &sc->sc_ic;
2524 struct ieee80211_node *ni = ic->ic_bss;
2525 struct ifnet *ifp = &sc->sc_if;
2526 struct ieee80211_wme_info wme;
2527 struct iwi_configuration config;
2528 struct iwi_associate assoc;
2529 struct iwi_rateset rs;
2530 uint16_t capinfo;
2531 uint32_t data;
2532 int error;
2533
2534 memset(&config, 0, sizeof config);
2535 config.bluetooth_coexistence = sc->bluetooth;
2536 config.antenna = sc->antenna;
2537 config.multicast_enabled = 1;
2538 config.silence_threshold = 0x1e;
2539 if (ic->ic_curmode == IEEE80211_MODE_11G)
2540 config.use_protection = 1;
2541 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0;
2542 config.disable_unicast_decryption = 1;
2543 config.disable_multicast_decryption = 1;
2544
2545 DPRINTF(("Configuring adapter\n"));
2546 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config,
2547 sizeof config, 1);
2548 if (error != 0)
2549 return error;
2550
2551#ifdef IWI_DEBUG
2552 if (iwi_debug > 0) {
2553 aprint_debug_dev(sc->sc_dev, "Setting ESSID to ");
2554 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen);
2555 aprint_debug("\n");
2556 }
2557#endif
2558 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1);
2559 if (error != 0)
2560 return error;
2561
2562 /* the rate set has already been "negotiated" */
2563 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A :
2564 IWI_MODE_11G;
2565 rs.type = IWI_RATESET_TYPE_NEGOTIATED;
2566 rs.nrates = ni->ni_rates.rs_nrates;
2567
2568 if (rs.nrates > IWI_RATESET_SIZE) {
2569 DPRINTF(("Truncating negotiated rate set from %u\n",
2570 rs.nrates));
2571 rs.nrates = IWI_RATESET_SIZE;
2572 }
2573 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates);
2574 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates));
2575 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1);
2576 if (error != 0)
2577 return error;
2578
2579 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) {
2580 wme.wme_id = IEEE80211_ELEMID_VENDOR;
2581 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2;
2582 wme.wme_oui[0] = 0x00;
2583 wme.wme_oui[1] = 0x50;
2584 wme.wme_oui[2] = 0xf2;
2585 wme.wme_type = WME_OUI_TYPE;
2586 wme.wme_subtype = WME_INFO_OUI_SUBTYPE;
2587 wme.wme_version = WME_VERSION;
2588 wme.wme_info = 0;
2589
2590 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len));
2591 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1);
2592 if (error != 0)
2593 return error;
2594 }
2595
2596 if (ic->ic_opt_ie != NULL) {
2597 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len));
2598 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie,
2599 ic->ic_opt_ie_len, 1);
2600 if (error != 0)
2601 return error;
2602 }
2603 data = htole32(ni->ni_rssi);
2604 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi));
2605 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1);
2606 if (error != 0)
2607 return error;
2608
2609 memset(&assoc, 0, sizeof assoc);
2610 if (IEEE80211_IS_CHAN_A(ni->ni_chan))
2611 assoc.mode = IWI_MODE_11A;
2612 else if (IEEE80211_IS_CHAN_G(ni->ni_chan))
2613 assoc.mode = IWI_MODE_11G;
2614 else if (IEEE80211_IS_CHAN_B(ni->ni_chan))
2615 assoc.mode = IWI_MODE_11B;
2616
2617 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2618
2619 if (ni->ni_authmode == IEEE80211_AUTH_SHARED)
2620 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED;
2621
2622 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2623 assoc.plen = IWI_ASSOC_SHPREAMBLE;
2624
2625 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL)
2626 assoc.policy |= htole16(IWI_POLICY_WME);
2627 if (ic->ic_flags & IEEE80211_F_WPA)
2628 assoc.policy |= htole16(IWI_POLICY_WPA);
2629 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0)
2630 assoc.type = IWI_HC_IBSS_START;
2631 else
2632 assoc.type = IWI_HC_ASSOC;
2633 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8);
2634
2635 if (ic->ic_opmode == IEEE80211_M_IBSS)
2636 capinfo = IEEE80211_CAPINFO_IBSS;
2637 else
2638 capinfo = IEEE80211_CAPINFO_ESS;
2639 if (ic->ic_flags & IEEE80211_F_PRIVACY)
2640 capinfo |= IEEE80211_CAPINFO_PRIVACY;
2641 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
2642 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
2643 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE;
2644 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2645 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME;
2646 assoc.capinfo = htole16(capinfo);
2647
2648 assoc.lintval = htole16(ic->ic_lintval);
2649 assoc.intval = htole16(ni->ni_intval);
2650 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid);
2651 if (ic->ic_opmode == IEEE80211_M_IBSS)
2652 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr);
2653 else
2654 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid);
2655
2656 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x "
2657 "auth %u capinfo 0x%x lintval %u bintval %u\n",
2658 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join",
2659 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst),
2660 assoc.chan, le16toh(assoc.policy), assoc.auth,
2661 le16toh(assoc.capinfo), le16toh(assoc.lintval),
2662 le16toh(assoc.intval)));
2663
2664 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1);
2665}
2666
2667static int
2668iwi_init(struct ifnet *ifp)
2669{
2670 struct iwi_softc *sc = ifp->if_softc;
2671 struct ieee80211com *ic = &sc->sc_ic;
2672 struct iwi_firmware *fw = &sc->fw;
2673 int i, error;
2674
2675 /* exit immediately if firmware has not been ioctl'd */
2676 if (!(sc->flags & IWI_FLAG_FW_CACHED)) {
2677 if ((error = iwi_cache_firmware(sc)) != 0) {
2678 aprint_error_dev(sc->sc_dev,
2679 "could not cache the firmware\n");
2680 goto fail;
2681 }
2682 }
2683
2684 iwi_stop(ifp, 0);
2685
2686 if ((error = iwi_reset(sc)) != 0) {
2687 aprint_error_dev(sc->sc_dev, "could not reset adapter\n");
2688 goto fail;
2689 }
2690
2691 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) {
2692 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n");
2693 goto fail;
2694 }
2695
2696 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) {
2697 aprint_error_dev(sc->sc_dev, "could not load microcode\n");
2698 goto fail;
2699 }
2700
2701 iwi_stop_master(sc);
2702
2703 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr);
2704 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count);
2705 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur);
2706
2707 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr);
2708 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count);
2709 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur);
2710
2711 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr);
2712 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count);
2713 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur);
2714
2715 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr);
2716 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count);
2717 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur);
2718
2719 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr);
2720 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count);
2721 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur);
2722
2723 for (i = 0; i < sc->rxq.count; i++)
2724 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4,
2725 sc->rxq.data[i].map->dm_segs[0].ds_addr);
2726
2727 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1);
2728
2729 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) {
2730 aprint_error_dev(sc->sc_dev, "could not load main firmware\n");
2731 goto fail;
2732 }
2733
2734 sc->flags |= IWI_FLAG_FW_INITED;
2735
2736 if ((error = iwi_config(sc)) != 0) {
2737 aprint_error_dev(sc->sc_dev, "device configuration failed\n");
2738 goto fail;
2739 }
2740
2741 ic->ic_state = IEEE80211_S_INIT;
2742
2743 ifp->if_flags &= ~IFF_OACTIVE;
2744 ifp->if_flags |= IFF_RUNNING;
2745
2746 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2747 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
2748 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2749 } else
2750 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
2751
2752 return 0;
2753
2754fail: ifp->if_flags &= ~IFF_UP;
2755 iwi_stop(ifp, 0);
2756
2757 return error;
2758}
2759
2760
2761/*
2762 * Return whether or not the radio is enabled in hardware
2763 * (i.e. the rfkill switch is "off").
2764 */
2765static int
2766iwi_getrfkill(struct iwi_softc *sc)
2767{
2768 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0;
2769}
2770
2771static int
2772iwi_sysctl_radio(SYSCTLFN_ARGS)
2773{
2774 struct sysctlnode node;
2775 struct iwi_softc *sc;
2776 int val, error;
2777
2778 node = *rnode;
2779 sc = (struct iwi_softc *)node.sysctl_data;
2780
2781 val = !iwi_getrfkill(sc);
2782
2783 node.sysctl_data = &val;
2784 error = sysctl_lookup(SYSCTLFN_CALL(&node));
2785
2786 if (error || newp == NULL)
2787 return error;
2788
2789 return 0;
2790}
2791
2792#ifdef IWI_DEBUG
2793SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup")
2794{
2795 int rc;
2796 const struct sysctlnode *rnode;
2797 const struct sysctlnode *cnode;
2798
2799 if ((rc = sysctl_createv(clog, 0, NULL, &rnode,
2800 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi",
2801 SYSCTL_DESCR("iwi global controls"),
2802 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0)
2803 goto err;
2804
2805 /* control debugging printfs */
2806 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
2807 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
2808 "debug", SYSCTL_DESCR("Enable debugging output"),
2809 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0)
2810 goto err;
2811
2812 return;
2813err:
2814 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
2815}
2816
2817#endif /* IWI_DEBUG */
2818
2819/*
2820 * Add sysctl knobs.
2821 */
2822static void
2823iwi_sysctlattach(struct iwi_softc *sc)
2824{
2825 int rc;
2826 const struct sysctlnode *rnode;
2827 const struct sysctlnode *cnode;
2828
2829 struct sysctllog **clog = &sc->sc_sysctllog;
2830
2831 if ((rc = sysctl_createv(clog, 0, NULL, &rnode,
2832 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev),
2833 SYSCTL_DESCR("iwi controls and statistics"),
2834 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0)
2835 goto err;
2836
2837 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
2838 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio",
2839 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"),
2840 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0)
2841 goto err;
2842
2843 sc->dwelltime = 100;
2844 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
2845 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
2846 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"),
2847 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0)
2848 goto err;
2849
2850 sc->bluetooth = 0;
2851 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
2852 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
2853 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"),
2854 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0)
2855 goto err;
2856
2857 sc->antenna = IWI_ANTENNA_AUTO;
2858 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
2859 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
2860 "antenna", SYSCTL_DESCR("antenna (0=auto)"),
2861 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0)
2862 goto err;
2863
2864 return;
2865err:
2866 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
2867}
2868
2869static void
2870iwi_stop(struct ifnet *ifp, int disable)
2871{
2872 struct iwi_softc *sc = ifp->if_softc;
2873 struct ieee80211com *ic = &sc->sc_ic;
2874
2875 IWI_LED_OFF(sc);
2876
2877 iwi_stop_master(sc);
2878 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET);
2879
2880 /* reset rings */
2881 iwi_reset_cmd_ring(sc, &sc->cmdq);
2882 iwi_reset_tx_ring(sc, &sc->txq[0]);
2883 iwi_reset_tx_ring(sc, &sc->txq[1]);
2884 iwi_reset_tx_ring(sc, &sc->txq[2]);
2885 iwi_reset_tx_ring(sc, &sc->txq[3]);
2886 iwi_reset_rx_ring(sc, &sc->rxq);
2887
2888 ifp->if_timer = 0;
2889 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2890
2891 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
2892}
2893
2894static void
2895iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle)
2896{
2897 uint32_t val;
2898
2899 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL);
2900
2901 switch (sc->nictype) {
2902 case 1:
2903 /* special NIC type: reversed leds */
2904 if (state == IWI_LED_ACTIVITY) {
2905 state &= ~IWI_LED_ACTIVITY;
2906 state |= IWI_LED_ASSOCIATED;
2907 } else if (state == IWI_LED_ASSOCIATED) {
2908 state &= ~IWI_LED_ASSOCIATED;
2909 state |= IWI_LED_ACTIVITY;
2910 }
2911 /* and ignore toggle effect */
2912 val |= state;
2913 break;
2914 case 0:
2915 case 2:
2916 case 3:
2917 case 4:
2918 val = (toggle && (val & state)) ? val & ~state : val | state;
2919 break;
2920 default:
2921 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n",
2922 sc->nictype);
2923 return;
2924 break;
2925 }
2926
2927 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val);
2928
2929 return;
2930}
2931
2932SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula")
2933{
2934 const struct sysctlnode *rnode;
2935 const struct sysctlnode *cnode;
2936
2937 sysctl_createv(NULL, 0, NULL, &rnode,
2938 CTLFLAG_PERMANENT,
2939 CTLTYPE_NODE, "iwi",
2940 NULL,
2941 NULL, 0,
2942 NULL, 0,
2943 CTL_HW, CTL_CREATE, CTL_EOL);
2944
2945 sysctl_createv(NULL, 0, &rnode, &cnode,
2946 CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
2947 CTLTYPE_INT, "accept_eula",
2948 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"),
2949 NULL, 0,
2950 &iwi_accept_eula, sizeof(iwi_accept_eula),
2951 CTL_CREATE, CTL_EOL);
2952}
2953