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>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
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.
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
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
34 * Intel(R) PRO/Wireless 2100 MiniPCI driver
35 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
38 #include <sys/param.h>
39 #include <sys/sysctl.h>
40 #include <sys/sockio.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>
50 #include <sys/endian.h>
51 #include <sys/linker.h>
52 #include <sys/firmware.h>
54 #include <machine/bus.h>
55 #include <machine/resource.h>
58 #include <dev/pci/pcireg.h>
59 #include <dev/pci/pcivar.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>
70 #include <net80211/ieee80211_var.h>
71 #include <net80211/ieee80211_radiotap.h>
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>
79 #include <dev/ipw/if_ipwreg.h>
80 #include <dev/ipw/if_ipwvar.h>
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)
87 SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level");
90 #define DPRINTFN(n, x)
93 MODULE_DEPEND(ipw, pci, 1, 1, 1);
94 MODULE_DEPEND(ipw, wlan, 1, 1, 1);
95 MODULE_DEPEND(ipw, firmware, 1, 1, 1);
103 static const struct ipw_ident ipw_ident_table[] = {
104 { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" },
109 static 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]);
113 static void ipw_vap_delete(struct ieee80211vap *);
114 static int ipw_dma_alloc(struct ipw_softc *);
115 static void ipw_release(struct ipw_softc *);
116 static void ipw_media_status(struct ifnet *, struct ifmediareq *);
117 static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int);
118 static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t);
119 static uint16_t ipw_read_chanmask(struct ipw_softc *);
120 static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
121 static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
122 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
123 struct ipw_soft_bd *, struct ipw_soft_buf *);
124 static void ipw_rx_intr(struct ipw_softc *);
125 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
126 static void ipw_tx_intr(struct ipw_softc *);
127 static void ipw_intr(void *);
128 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
129 static const char * ipw_cmdname(int);
130 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
131 static int ipw_tx_start(struct ipw_softc *, struct mbuf *,
132 struct ieee80211_node *);
133 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
134 const struct ieee80211_bpf_params *);
135 static int ipw_transmit(struct ieee80211com *, struct mbuf *);
136 static void ipw_start(struct ipw_softc *);
137 static void ipw_watchdog(void *);
138 static void ipw_parent(struct ieee80211com *);
139 static void ipw_stop_master(struct ipw_softc *);
140 static int ipw_enable(struct ipw_softc *);
141 static int ipw_disable(struct ipw_softc *);
142 static int ipw_reset(struct ipw_softc *);
143 static int ipw_load_ucode(struct ipw_softc *, const char *, int);
144 static int ipw_load_firmware(struct ipw_softc *, const char *, int);
145 static int ipw_config(struct ipw_softc *);
146 static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
147 static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
148 static void ipw_init_task(void *, int);
149 static void ipw_init(void *);
150 static void ipw_init_locked(struct ipw_softc *);
151 static void ipw_stop(void *);
152 static void ipw_stop_locked(struct ipw_softc *);
153 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
154 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
155 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
156 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
158 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
160 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
163 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
164 const uint8_t *, bus_size_t);
165 static int ipw_scan(struct ipw_softc *);
166 static void ipw_scan_start(struct ieee80211com *);
167 static void ipw_scan_end(struct ieee80211com *);
168 static void ipw_getradiocaps(struct ieee80211com *, int, int *,
169 struct ieee80211_channel[]);
170 static void ipw_set_channel(struct ieee80211com *);
171 static void ipw_scan_curchan(struct ieee80211_scan_state *,
172 unsigned long maxdwell);
173 static void ipw_scan_mindwell(struct ieee80211_scan_state *);
175 static int ipw_probe(device_t);
176 static int ipw_attach(device_t);
177 static int ipw_detach(device_t);
178 static int ipw_shutdown(device_t);
179 static int ipw_suspend(device_t);
180 static int ipw_resume(device_t);
182 static device_method_t ipw_methods[] = {
183 /* Device interface */
184 DEVMETHOD(device_probe, ipw_probe),
185 DEVMETHOD(device_attach, ipw_attach),
186 DEVMETHOD(device_detach, ipw_detach),
187 DEVMETHOD(device_shutdown, ipw_shutdown),
188 DEVMETHOD(device_suspend, ipw_suspend),
189 DEVMETHOD(device_resume, ipw_resume),
194 static driver_t ipw_driver = {
197 sizeof (struct ipw_softc)
200 static devclass_t ipw_devclass;
202 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, NULL, NULL);
204 MODULE_VERSION(ipw, 1);
207 ipw_probe(device_t dev)
209 const struct ipw_ident *ident;
211 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
212 if (pci_get_vendor(dev) == ident->vendor &&
213 pci_get_device(dev) == ident->device) {
214 device_set_desc(dev, ident->name);
215 return (BUS_PROBE_DEFAULT);
221 /* Base Address Register */
223 ipw_attach(device_t dev)
225 struct ipw_softc *sc = device_get_softc(dev);
226 struct ieee80211com *ic = &sc->sc_ic;
232 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
233 MTX_DEF | MTX_RECURSE);
234 mbufq_init(&sc->sc_snd, ifqmaxlen);
235 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
236 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
238 pci_write_config(dev, 0x41, 0, 1);
240 /* enable bus-mastering */
241 pci_enable_busmaster(dev);
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");
250 sc->sc_st = rman_get_bustag(sc->mem);
251 sc->sc_sh = rman_get_bushandle(sc->mem);
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");
261 if (ipw_reset(sc) != 0) {
262 device_printf(dev, "could not reset adapter\n");
266 if (ipw_dma_alloc(sc) != 0) {
267 device_printf(dev, "could not allocate DMA resources\n");
272 ic->ic_name = device_get_nameunit(dev);
273 ic->ic_opmode = IEEE80211_M_STA;
274 ic->ic_phytype = IEEE80211_T_DS;
276 /* set device capabilities */
278 IEEE80211_C_STA /* station mode supported */
279 | IEEE80211_C_IBSS /* IBSS mode supported */
280 | IEEE80211_C_MONITOR /* monitor mode supported */
281 | IEEE80211_C_PMGT /* power save supported */
282 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
283 | IEEE80211_C_WPA /* 802.11i supported */
286 /* read MAC address from EEPROM */
287 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
288 ic->ic_macaddr[0] = val >> 8;
289 ic->ic_macaddr[1] = val & 0xff;
290 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
291 ic->ic_macaddr[2] = val >> 8;
292 ic->ic_macaddr[3] = val & 0xff;
293 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
294 ic->ic_macaddr[4] = val >> 8;
295 ic->ic_macaddr[5] = val & 0xff;
297 sc->chanmask = ipw_read_chanmask(sc);
298 ipw_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
301 /* check support for radio transmitter switch in EEPROM */
302 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
303 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
305 ieee80211_ifattach(ic);
306 ic->ic_scan_start = ipw_scan_start;
307 ic->ic_scan_end = ipw_scan_end;
308 ic->ic_getradiocaps = ipw_getradiocaps;
309 ic->ic_set_channel = ipw_set_channel;
310 ic->ic_scan_curchan = ipw_scan_curchan;
311 ic->ic_scan_mindwell = ipw_scan_mindwell;
312 ic->ic_raw_xmit = ipw_raw_xmit;
313 ic->ic_vap_create = ipw_vap_create;
314 ic->ic_vap_delete = ipw_vap_delete;
315 ic->ic_transmit = ipw_transmit;
316 ic->ic_parent = ipw_parent;
318 ieee80211_radiotap_attach(ic,
319 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
320 IPW_TX_RADIOTAP_PRESENT,
321 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
322 IPW_RX_RADIOTAP_PRESENT);
325 * Add a few sysctl knobs.
327 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
328 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
329 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
330 "radio transmitter switch state (0=off, 1=on)");
332 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
333 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
334 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
338 * Hook our interrupt after all initialization is complete.
340 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
341 NULL, ipw_intr, sc, &sc->sc_ih);
343 device_printf(dev, "could not set up interrupt\n");
348 ieee80211_announce(ic);
354 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
356 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
359 mtx_destroy(&sc->sc_mtx);
364 ipw_detach(device_t dev)
366 struct ipw_softc *sc = device_get_softc(dev);
367 struct ieee80211com *ic = &sc->sc_ic;
369 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
371 ieee80211_draintask(ic, &sc->sc_init_task);
374 ieee80211_ifdetach(ic);
376 callout_drain(&sc->sc_wdtimer);
377 mbufq_drain(&sc->sc_snd);
381 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
383 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
386 if (sc->sc_firmware != NULL) {
387 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
388 sc->sc_firmware = NULL;
391 mtx_destroy(&sc->sc_mtx);
396 static struct ieee80211vap *
397 ipw_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
398 enum ieee80211_opmode opmode, int flags,
399 const uint8_t bssid[IEEE80211_ADDR_LEN],
400 const uint8_t mac[IEEE80211_ADDR_LEN])
402 struct ipw_softc *sc = ic->ic_softc;
404 struct ieee80211vap *vap;
405 const struct firmware *fp;
406 const struct ipw_firmware_hdr *hdr;
407 const char *imagename;
409 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
413 case IEEE80211_M_STA:
414 imagename = "ipw_bss";
416 case IEEE80211_M_IBSS:
417 imagename = "ipw_ibss";
419 case IEEE80211_M_MONITOR:
420 imagename = "ipw_monitor";
427 * Load firmware image using the firmware(9) subsystem. Doing
428 * this unlocked is ok since we're single-threaded by the
431 if (sc->sc_firmware == NULL ||
432 strcmp(sc->sc_firmware->name, imagename) != 0) {
433 if (sc->sc_firmware != NULL)
434 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
435 sc->sc_firmware = firmware_get(imagename);
437 if (sc->sc_firmware == NULL) {
438 device_printf(sc->sc_dev,
439 "could not load firmware image '%s'\n", imagename);
442 fp = sc->sc_firmware;
443 if (fp->datasize < sizeof *hdr) {
444 device_printf(sc->sc_dev,
445 "firmware image too short %zu\n", fp->datasize);
446 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
447 sc->sc_firmware = NULL;
450 hdr = (const struct ipw_firmware_hdr *)fp->data;
451 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
452 le32toh(hdr->ucodesz)) {
453 device_printf(sc->sc_dev,
454 "firmware image too short %zu\n", fp->datasize);
455 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
456 sc->sc_firmware = NULL;
460 ivp = malloc(sizeof(struct ipw_vap), M_80211_VAP, M_WAITOK | M_ZERO);
463 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
464 /* override with driver methods */
465 ivp->newstate = vap->iv_newstate;
466 vap->iv_newstate = ipw_newstate;
469 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status,
471 ic->ic_opmode = opmode;
476 ipw_vap_delete(struct ieee80211vap *vap)
478 struct ipw_vap *ivp = IPW_VAP(vap);
480 ieee80211_vap_detach(vap);
481 free(ivp, M_80211_VAP);
485 ipw_dma_alloc(struct ipw_softc *sc)
487 struct ipw_soft_bd *sbd;
488 struct ipw_soft_hdr *shdr;
489 struct ipw_soft_buf *sbuf;
494 * Allocate parent DMA tag for subsequent allocations.
496 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
497 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
498 BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
499 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
501 device_printf(sc->sc_dev, "could not create parent DMA tag\n");
506 * Allocate and map tx ring.
508 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
509 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
510 NULL, &sc->tbd_dmat);
512 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
516 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
517 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
519 device_printf(sc->sc_dev,
520 "could not allocate tx ring DMA memory\n");
524 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
525 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
527 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
532 * Allocate and map rx ring.
534 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
535 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
536 NULL, &sc->rbd_dmat);
538 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
542 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
543 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
545 device_printf(sc->sc_dev,
546 "could not allocate rx ring DMA memory\n");
550 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
551 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
553 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
558 * Allocate and map status ring.
560 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
561 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
562 NULL, NULL, &sc->status_dmat);
564 device_printf(sc->sc_dev,
565 "could not create status ring DMA tag\n");
569 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
570 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
572 device_printf(sc->sc_dev,
573 "could not allocate status ring DMA memory\n");
577 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
578 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
581 device_printf(sc->sc_dev,
582 "could not map status ring DMA memory\n");
587 * Allocate command DMA map.
589 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
590 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
591 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
593 device_printf(sc->sc_dev, "could not create command DMA tag\n");
597 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
599 device_printf(sc->sc_dev,
600 "could not create command DMA map\n");
605 * Allocate headers DMA maps.
607 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
608 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
609 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
611 device_printf(sc->sc_dev, "could not create header DMA tag\n");
615 SLIST_INIT(&sc->free_shdr);
616 for (i = 0; i < IPW_NDATA; i++) {
617 shdr = &sc->shdr_list[i];
618 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
620 device_printf(sc->sc_dev,
621 "could not create header DMA map\n");
624 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
628 * Allocate tx buffers DMA maps.
630 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
631 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
632 NULL, NULL, &sc->txbuf_dmat);
634 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
638 SLIST_INIT(&sc->free_sbuf);
639 for (i = 0; i < IPW_NDATA; i++) {
640 sbuf = &sc->tx_sbuf_list[i];
641 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
643 device_printf(sc->sc_dev,
644 "could not create tx DMA map\n");
647 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
651 * Initialize tx ring.
653 for (i = 0; i < IPW_NTBD; i++) {
654 sbd = &sc->stbd_list[i];
655 sbd->bd = &sc->tbd_list[i];
656 sbd->type = IPW_SBD_TYPE_NOASSOC;
660 * Pre-allocate rx buffers and DMA maps.
662 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
663 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
664 NULL, &sc->rxbuf_dmat);
666 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
670 for (i = 0; i < IPW_NRBD; i++) {
671 sbd = &sc->srbd_list[i];
672 sbuf = &sc->rx_sbuf_list[i];
673 sbd->bd = &sc->rbd_list[i];
675 sbuf->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
676 if (sbuf->m == NULL) {
677 device_printf(sc->sc_dev,
678 "could not allocate rx mbuf\n");
683 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
685 device_printf(sc->sc_dev,
686 "could not create rx DMA map\n");
690 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
691 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
694 device_printf(sc->sc_dev,
695 "could not map rx DMA memory\n");
699 sbd->type = IPW_SBD_TYPE_DATA;
701 sbd->bd->physaddr = htole32(physaddr);
702 sbd->bd->len = htole32(MCLBYTES);
705 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
709 fail: ipw_release(sc);
714 ipw_release(struct ipw_softc *sc)
716 struct ipw_soft_buf *sbuf;
719 if (sc->parent_dmat != NULL) {
720 bus_dma_tag_destroy(sc->parent_dmat);
723 if (sc->tbd_dmat != NULL) {
724 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
725 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, sc->tbd_map);
726 bus_dma_tag_destroy(sc->tbd_dmat);
729 if (sc->rbd_dmat != NULL) {
730 if (sc->rbd_list != NULL) {
731 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
732 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
735 bus_dma_tag_destroy(sc->rbd_dmat);
738 if (sc->status_dmat != NULL) {
739 if (sc->status_list != NULL) {
740 bus_dmamap_unload(sc->status_dmat, sc->status_map);
741 bus_dmamem_free(sc->status_dmat, sc->status_list,
744 bus_dma_tag_destroy(sc->status_dmat);
747 for (i = 0; i < IPW_NTBD; i++)
748 ipw_release_sbd(sc, &sc->stbd_list[i]);
750 if (sc->cmd_dmat != NULL) {
751 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
752 bus_dma_tag_destroy(sc->cmd_dmat);
755 if (sc->hdr_dmat != NULL) {
756 for (i = 0; i < IPW_NDATA; i++)
757 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
758 bus_dma_tag_destroy(sc->hdr_dmat);
761 if (sc->txbuf_dmat != NULL) {
762 for (i = 0; i < IPW_NDATA; i++) {
763 bus_dmamap_destroy(sc->txbuf_dmat,
764 sc->tx_sbuf_list[i].map);
766 bus_dma_tag_destroy(sc->txbuf_dmat);
769 if (sc->rxbuf_dmat != NULL) {
770 for (i = 0; i < IPW_NRBD; i++) {
771 sbuf = &sc->rx_sbuf_list[i];
772 if (sbuf->m != NULL) {
773 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
774 BUS_DMASYNC_POSTREAD);
775 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
778 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
780 bus_dma_tag_destroy(sc->rxbuf_dmat);
785 ipw_shutdown(device_t dev)
787 struct ipw_softc *sc = device_get_softc(dev);
795 ipw_suspend(device_t dev)
797 struct ipw_softc *sc = device_get_softc(dev);
798 struct ieee80211com *ic = &sc->sc_ic;
800 ieee80211_suspend_all(ic);
805 ipw_resume(device_t dev)
807 struct ipw_softc *sc = device_get_softc(dev);
808 struct ieee80211com *ic = &sc->sc_ic;
810 pci_write_config(dev, 0x41, 0, 1);
812 ieee80211_resume_all(ic);
817 ipw_cvtrate(int ipwrate)
820 case IPW_RATE_DS1: return 2;
821 case IPW_RATE_DS2: return 4;
822 case IPW_RATE_DS5: return 11;
823 case IPW_RATE_DS11: return 22;
829 * The firmware automatically adapts the transmit speed. We report its current
833 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
835 struct ieee80211vap *vap = ifp->if_softc;
836 struct ieee80211com *ic = vap->iv_ic;
837 struct ipw_softc *sc = ic->ic_softc;
839 /* read current transmission rate from adapter */
840 vap->iv_bss->ni_txrate = ipw_cvtrate(
841 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
842 ieee80211_media_status(ifp, imr);
846 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
848 struct ipw_vap *ivp = IPW_VAP(vap);
849 struct ieee80211com *ic = vap->iv_ic;
850 struct ipw_softc *sc = ic->ic_softc;
851 enum ieee80211_state ostate;
853 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
854 ieee80211_state_name[vap->iv_state],
855 ieee80211_state_name[nstate], sc->flags));
857 ostate = vap->iv_state;
858 IEEE80211_UNLOCK(ic);
861 case IEEE80211_S_RUN:
862 if (ic->ic_opmode == IEEE80211_M_IBSS) {
864 * XXX when joining an ibss network we are called
865 * with a SCAN -> RUN transition on scan complete.
866 * Use that to call ipw_assoc. On completing the
867 * join we are then called again with an AUTH -> RUN
868 * transition and we want to do nothing. This is
869 * all totally bogus and needs to be redone.
871 if (ostate == IEEE80211_S_SCAN)
876 case IEEE80211_S_INIT:
877 if (sc->flags & IPW_FLAG_ASSOCIATED)
878 ipw_disassoc(ic, vap);
881 case IEEE80211_S_AUTH:
883 * Move to ASSOC state after the ipw_assoc() call. Firmware
884 * takes care of authentication, after the call we'll receive
885 * only an assoc response which would otherwise be discared
886 * if we are still in AUTH state.
888 nstate = IEEE80211_S_ASSOC;
892 case IEEE80211_S_ASSOC:
894 * If we are not transitioning from AUTH then resend the
895 * association request.
897 if (ostate != IEEE80211_S_AUTH)
905 return ivp->newstate(vap, nstate, arg);
909 * Read 16 bits at address 'addr' from the serial EEPROM.
912 ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
918 /* clock C once before the first command */
919 IPW_EEPROM_CTL(sc, 0);
920 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
921 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
922 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
924 /* write start bit (1) */
925 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
926 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
928 /* write READ opcode (10) */
929 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
930 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
931 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
932 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
934 /* write address A7-A0 */
935 for (n = 7; n >= 0; n--) {
936 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
937 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
938 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
939 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
942 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
944 /* read data Q15-Q0 */
946 for (n = 15; n >= 0; n--) {
947 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
948 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
949 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
950 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
953 IPW_EEPROM_CTL(sc, 0);
955 /* clear Chip Select and clock C */
956 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
957 IPW_EEPROM_CTL(sc, 0);
958 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
964 ipw_read_chanmask(struct ipw_softc *sc)
968 /* set supported .11b channels (read from EEPROM) */
969 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
970 val = 0x7ff; /* default to channels 1-11 */
977 ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
981 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
983 cmd = mtod(sbuf->m, struct ipw_cmd *);
985 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
986 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
987 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
988 le32toh(cmd->status)));
990 sc->flags &= ~IPW_FLAG_BUSY;
995 ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
997 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
998 struct ieee80211com *ic = &sc->sc_ic;
999 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1002 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1004 state = le32toh(*mtod(sbuf->m, uint32_t *));
1007 case IPW_STATE_ASSOCIATED:
1008 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1009 IEEESTATE(vap), sc->flags));
1010 /* XXX suppress state change in case the fw auto-associates */
1011 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1012 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1013 IEEESTATE(vap), sc->flags));
1016 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1017 sc->flags |= IPW_FLAG_ASSOCIATED;
1020 case IPW_STATE_SCANNING:
1021 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1022 IEEESTATE(vap), sc->flags));
1024 * NB: Check driver state for association on assoc
1025 * loss as the firmware will immediately start to
1026 * scan and we would treat it as a beacon miss if
1027 * we checked the 802.11 layer state.
1029 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1031 /* XXX probably need to issue disassoc to fw */
1032 ieee80211_beacon_miss(ic);
1037 case IPW_STATE_SCAN_COMPLETE:
1039 * XXX For some reason scan requests generate scan
1040 * started + scan done events before any traffic is
1041 * received (e.g. probe response frames). We work
1042 * around this by marking the HACK flag and skipping
1043 * the first scan complete event.
1045 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1046 IEEESTATE(vap), sc->flags));
1047 if (sc->flags & IPW_FLAG_HACK) {
1048 sc->flags &= ~IPW_FLAG_HACK;
1051 if (sc->flags & IPW_FLAG_SCANNING) {
1053 ieee80211_scan_done(vap);
1055 sc->flags &= ~IPW_FLAG_SCANNING;
1056 sc->sc_scan_timer = 0;
1060 case IPW_STATE_ASSOCIATION_LOST:
1061 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1062 IEEESTATE(vap), sc->flags));
1063 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1064 if (vap->iv_state == IEEE80211_S_RUN) {
1066 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1071 case IPW_STATE_DISABLED:
1072 /* XXX? is this right? */
1073 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1074 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1075 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1076 IEEESTATE(vap), sc->flags));
1079 case IPW_STATE_RADIO_DISABLED:
1080 device_printf(sc->sc_dev, "radio turned off\n");
1081 ieee80211_notify_radio(ic, 0);
1082 ipw_stop_locked(sc);
1083 /* XXX start polling thread to detect radio on */
1087 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1088 __func__, state, IEEESTATE(vap), sc->flags));
1095 * Set driver state for current channel.
1098 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1100 struct ieee80211com *ic = &sc->sc_ic;
1102 ic->ic_curchan = chan;
1103 ieee80211_radiotap_chan_change(ic);
1107 * XXX: Hack to set the current channel to the value advertised in beacons or
1108 * probe responses. Only used during AP detection.
1111 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1113 struct ieee80211com *ic = &sc->sc_ic;
1114 struct ieee80211_channel *c;
1115 struct ieee80211_frame *wh;
1117 uint8_t *frm, *efrm;
1119 wh = mtod(m, struct ieee80211_frame *);
1121 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1124 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1126 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1127 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1130 /* XXX use ieee80211_parse_beacon */
1131 frm = (uint8_t *)(wh + 1);
1132 efrm = mtod(m, uint8_t *) + m->m_len;
1134 frm += 12; /* skip tstamp, bintval and capinfo fields */
1135 while (frm < efrm) {
1136 if (*frm == IEEE80211_ELEMID_DSPARMS)
1137 #if IEEE80211_CHAN_MAX < 255
1138 if (frm[2] <= IEEE80211_CHAN_MAX)
1141 DPRINTF(("Fixing channel to %d\n", frm[2]));
1142 c = ieee80211_find_channel(ic,
1143 ieee80211_ieee2mhz(frm[2], 0),
1146 c = &ic->ic_channels[0];
1147 ipw_setcurchan(sc, c);
1155 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1156 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1158 struct ieee80211com *ic = &sc->sc_ic;
1159 struct mbuf *mnew, *m;
1160 struct ieee80211_node *ni;
1161 bus_addr_t physaddr;
1165 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1168 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1169 le32toh(status->len) > MCLBYTES)
1173 * Try to allocate a new mbuf for this ring element and load it before
1174 * processing the current mbuf. If the ring element cannot be loaded,
1175 * drop the received packet and reuse the old mbuf. In the unlikely
1176 * case that the old mbuf can't be reloaded either, explicitly panic.
1178 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1180 counter_u64_add(ic->ic_ierrors, 1);
1184 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1185 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1187 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1188 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1192 /* try to reload the old mbuf */
1193 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1194 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1197 /* very unlikely that it will fail... */
1198 panic("%s: could not load old rx mbuf",
1199 device_get_name(sc->sc_dev));
1201 counter_u64_add(ic->ic_ierrors, 1);
1206 * New mbuf successfully loaded, update Rx ring and continue
1211 sbd->bd->physaddr = htole32(physaddr);
1212 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1214 rssi = status->rssi + IPW_RSSI_TO_DBM;
1216 if (ieee80211_radiotap_active(ic)) {
1217 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1220 tap->wr_antsignal = rssi;
1221 tap->wr_antnoise = nf;
1224 if (sc->flags & IPW_FLAG_SCANNING)
1225 ipw_fix_channel(sc, m);
1228 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1230 (void) ieee80211_input(ni, m, rssi - nf, nf);
1231 ieee80211_free_node(ni);
1233 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
1236 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1240 ipw_rx_intr(struct ipw_softc *sc)
1242 struct ipw_status *status;
1243 struct ipw_soft_bd *sbd;
1244 struct ipw_soft_buf *sbuf;
1247 if (!(sc->flags & IPW_FLAG_FW_INITED))
1250 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1252 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1254 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1255 status = &sc->status_list[i];
1256 sbd = &sc->srbd_list[i];
1259 switch (le16toh(status->code) & 0xf) {
1260 case IPW_STATUS_CODE_COMMAND:
1261 ipw_rx_cmd_intr(sc, sbuf);
1264 case IPW_STATUS_CODE_NEWSTATE:
1265 ipw_rx_newstate_intr(sc, sbuf);
1268 case IPW_STATUS_CODE_DATA_802_3:
1269 case IPW_STATUS_CODE_DATA_802_11:
1270 ipw_rx_data_intr(sc, status, sbd, sbuf);
1273 case IPW_STATUS_CODE_NOTIFICATION:
1274 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1275 le32toh(status->len), status->flags));
1276 /* XXX maybe drive state machine AUTH->ASSOC? */
1280 device_printf(sc->sc_dev, "unexpected status code %u\n",
1281 le16toh(status->code));
1284 /* firmware was killed, stop processing received frames */
1285 if (!(sc->flags & IPW_FLAG_FW_INITED))
1291 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1293 /* kick the firmware */
1294 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1295 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1299 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1301 struct ipw_soft_hdr *shdr;
1302 struct ipw_soft_buf *sbuf;
1304 switch (sbd->type) {
1305 case IPW_SBD_TYPE_COMMAND:
1306 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1307 BUS_DMASYNC_POSTWRITE);
1308 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1311 case IPW_SBD_TYPE_HEADER:
1313 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1314 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1315 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1318 case IPW_SBD_TYPE_DATA:
1320 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1321 BUS_DMASYNC_POSTWRITE);
1322 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1323 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1325 if (sbuf->m->m_flags & M_TXCB)
1326 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1328 ieee80211_free_node(sbuf->ni);
1330 sc->sc_tx_timer = 0;
1334 sbd->type = IPW_SBD_TYPE_NOASSOC;
1338 ipw_tx_intr(struct ipw_softc *sc)
1340 struct ipw_soft_bd *sbd;
1343 if (!(sc->flags & IPW_FLAG_FW_INITED))
1346 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1348 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1349 sbd = &sc->stbd_list[i];
1350 ipw_release_sbd(sc, sbd);
1354 /* remember what the firmware has processed */
1355 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1361 ipw_fatal_error_intr(struct ipw_softc *sc)
1363 struct ieee80211com *ic = &sc->sc_ic;
1364 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1366 device_printf(sc->sc_dev, "firmware error\n");
1369 ieee80211_cancel_scan(vap);
1372 ieee80211_runtask(ic, &sc->sc_init_task);
1378 struct ipw_softc *sc = arg;
1383 r = CSR_READ_4(sc, IPW_CSR_INTR);
1384 if (r == 0 || r == 0xffffffff)
1387 /* disable interrupts */
1388 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1390 /* acknowledge all interrupts */
1391 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1393 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1394 ipw_fatal_error_intr(sc);
1398 if (r & IPW_INTR_FW_INIT_DONE)
1401 if (r & IPW_INTR_RX_TRANSFER)
1404 if (r & IPW_INTR_TX_TRANSFER)
1407 /* re-enable interrupts */
1408 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1414 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1419 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1421 *(bus_addr_t *)arg = segs[0].ds_addr;
1425 ipw_cmdname(int cmd)
1427 static const struct {
1431 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1432 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1433 { IPW_CMD_DISABLE, "DISABLE" },
1434 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1435 { IPW_CMD_ENABLE, "ENABLE" },
1436 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1437 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1438 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1439 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1440 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1441 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1442 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1443 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1444 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1445 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1446 { IPW_CMD_SET_MODE, "SET_MODE" },
1447 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1448 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1449 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1450 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1451 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1452 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1453 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1454 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1455 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1456 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1457 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1460 static char buf[12];
1463 for (i = 0; i < nitems(cmds); i++)
1464 if (cmds[i].cmd == cmd)
1465 return cmds[i].name;
1466 snprintf(buf, sizeof(buf), "%u", cmd);
1471 * Send a command to the firmware and wait for the acknowledgement.
1474 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1476 struct ipw_soft_bd *sbd;
1477 bus_addr_t physaddr;
1480 IPW_LOCK_ASSERT(sc);
1482 if (sc->flags & IPW_FLAG_BUSY) {
1483 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1484 __func__, ipw_cmdname(type));
1487 sc->flags |= IPW_FLAG_BUSY;
1489 sbd = &sc->stbd_list[sc->txcur];
1491 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1492 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1494 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1495 sc->flags &= ~IPW_FLAG_BUSY;
1499 sc->cmd.type = htole32(type);
1500 sc->cmd.subtype = 0;
1501 sc->cmd.len = htole32(len);
1503 memcpy(sc->cmd.data, data, len);
1505 sbd->type = IPW_SBD_TYPE_COMMAND;
1506 sbd->bd->physaddr = htole32(physaddr);
1507 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1509 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1510 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1512 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1513 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1516 if (ipw_debug >= 4) {
1517 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1519 /* Print the data buffer in the higher debug level */
1520 if (ipw_debug >= 9 && len > 0) {
1521 printf(" data: 0x");
1522 for (int i = 1; i <= len; i++)
1523 printf("%1D", (u_char *)data + len - i, "");
1531 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1532 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1534 /* wait at most one second for command to complete */
1535 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1537 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1538 __func__, ipw_cmdname(type), error);
1539 sc->flags &= ~IPW_FLAG_BUSY;
1546 ipw_tx_start(struct ipw_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1548 struct ieee80211com *ic = &sc->sc_ic;
1549 struct ieee80211vap *vap = ni->ni_vap;
1550 struct ieee80211_frame *wh;
1551 struct ipw_soft_bd *sbd;
1552 struct ipw_soft_hdr *shdr;
1553 struct ipw_soft_buf *sbuf;
1554 struct ieee80211_key *k;
1556 bus_dma_segment_t segs[IPW_MAX_NSEG];
1557 bus_addr_t physaddr;
1558 int nsegs, error, i;
1560 wh = mtod(m0, struct ieee80211_frame *);
1562 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1563 k = ieee80211_crypto_encap(ni, m0);
1568 /* packet header may have moved, reset our local pointer */
1569 wh = mtod(m0, struct ieee80211_frame *);
1572 if (ieee80211_radiotap_active_vap(vap)) {
1573 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1577 ieee80211_radiotap_tx(vap, m0);
1580 shdr = SLIST_FIRST(&sc->free_shdr);
1581 sbuf = SLIST_FIRST(&sc->free_sbuf);
1582 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1584 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1585 shdr->hdr.subtype = 0;
1586 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0;
1587 shdr->hdr.encrypt = 0;
1588 shdr->hdr.keyidx = 0;
1589 shdr->hdr.keysz = 0;
1590 shdr->hdr.fragmentsz = 0;
1591 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1592 if (ic->ic_opmode == IEEE80211_M_STA)
1593 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1595 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1597 /* trim IEEE802.11 header */
1598 m_adj(m0, sizeof (struct ieee80211_frame));
1600 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1602 if (error != 0 && error != EFBIG) {
1603 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1609 mnew = m_defrag(m0, M_NOWAIT);
1611 device_printf(sc->sc_dev,
1612 "could not defragment mbuf\n");
1618 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1621 device_printf(sc->sc_dev,
1622 "could not map mbuf (error %d)\n", error);
1628 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1629 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1631 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1632 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1637 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1638 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1640 sbd = &sc->stbd_list[sc->txcur];
1641 sbd->type = IPW_SBD_TYPE_HEADER;
1643 sbd->bd->physaddr = htole32(physaddr);
1644 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1645 sbd->bd->nfrag = 1 + nsegs;
1646 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1647 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1649 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1650 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1651 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1655 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1660 for (i = 0; i < nsegs; i++) {
1661 sbd = &sc->stbd_list[sc->txcur];
1663 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1664 sbd->bd->len = htole32(segs[i].ds_len);
1666 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1667 if (i == nsegs - 1) {
1668 sbd->type = IPW_SBD_TYPE_DATA;
1670 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1672 sbd->type = IPW_SBD_TYPE_NOASSOC;
1673 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1676 DPRINTFN(5, ("sending fragment (%d)\n", i));
1679 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1682 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1683 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1684 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1687 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1693 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1694 const struct ieee80211_bpf_params *params)
1696 /* no support; just discard */
1698 ieee80211_free_node(ni);
1703 ipw_transmit(struct ieee80211com *ic, struct mbuf *m)
1705 struct ipw_softc *sc = ic->ic_softc;
1709 if ((sc->flags & IPW_FLAG_RUNNING) == 0) {
1713 error = mbufq_enqueue(&sc->sc_snd, m);
1724 ipw_start(struct ipw_softc *sc)
1726 struct ieee80211_node *ni;
1729 IPW_LOCK_ASSERT(sc);
1731 while (sc->txfree < 1 + IPW_MAX_NSEG &&
1732 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1733 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1734 if (ipw_tx_start(sc, m, ni) != 0) {
1735 if_inc_counter(ni->ni_vap->iv_ifp,
1736 IFCOUNTER_OERRORS, 1);
1737 ieee80211_free_node(ni);
1740 /* start watchdog timer */
1741 sc->sc_tx_timer = 5;
1746 ipw_watchdog(void *arg)
1748 struct ipw_softc *sc = arg;
1749 struct ieee80211com *ic = &sc->sc_ic;
1751 IPW_LOCK_ASSERT(sc);
1753 if (sc->sc_tx_timer > 0) {
1754 if (--sc->sc_tx_timer == 0) {
1755 device_printf(sc->sc_dev, "device timeout\n");
1756 counter_u64_add(ic->ic_oerrors, 1);
1757 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1760 if (sc->sc_scan_timer > 0) {
1761 if (--sc->sc_scan_timer == 0) {
1762 DPRINTFN(3, ("Scan timeout\n"));
1764 if (sc->flags & IPW_FLAG_SCANNING) {
1766 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1768 sc->flags &= ~IPW_FLAG_SCANNING;
1772 if (sc->flags & IPW_FLAG_RUNNING)
1773 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1777 ipw_parent(struct ieee80211com *ic)
1779 struct ipw_softc *sc = ic->ic_softc;
1783 if (ic->ic_nrunning > 0) {
1784 if (!(sc->flags & IPW_FLAG_RUNNING)) {
1785 ipw_init_locked(sc);
1788 } else if (sc->flags & IPW_FLAG_RUNNING)
1789 ipw_stop_locked(sc);
1792 ieee80211_start_all(ic);
1796 ipw_stop_master(struct ipw_softc *sc)
1801 /* disable interrupts */
1802 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1804 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1805 for (ntries = 0; ntries < 50; ntries++) {
1806 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1811 device_printf(sc->sc_dev, "timeout waiting for master\n");
1813 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1814 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1816 /* Clear all flags except the following */
1817 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1821 ipw_reset(struct ipw_softc *sc)
1826 ipw_stop_master(sc);
1828 /* move adapter to D0 state */
1829 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1830 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1832 /* wait for clock stabilization */
1833 for (ntries = 0; ntries < 1000; ntries++) {
1834 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1841 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1842 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1846 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1847 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1853 ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1855 int ms = hz < 1000 ? 1 : hz/10;
1858 for (i = 0; i < 100; i++) {
1859 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1861 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1862 if (error == 0 || error != EWOULDBLOCK)
1865 DPRINTF(("%s: timeout waiting for %s\n",
1866 __func__, waitfor ? "disable" : "enable"));
1871 ipw_enable(struct ipw_softc *sc)
1875 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1876 DPRINTF(("Enable adapter\n"));
1877 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1880 error = ipw_waitfordisable(sc, 0);
1883 sc->flags |= IPW_FLAG_ENABLED;
1889 ipw_disable(struct ipw_softc *sc)
1893 if (sc->flags & IPW_FLAG_ENABLED) {
1894 DPRINTF(("Disable adapter\n"));
1895 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1898 error = ipw_waitfordisable(sc, 1);
1901 sc->flags &= ~IPW_FLAG_ENABLED;
1907 * Upload the microcode to the device.
1910 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1914 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1915 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1917 MEM_WRITE_2(sc, 0x220000, 0x0703);
1918 MEM_WRITE_2(sc, 0x220000, 0x0707);
1920 MEM_WRITE_1(sc, 0x210014, 0x72);
1921 MEM_WRITE_1(sc, 0x210014, 0x72);
1923 MEM_WRITE_1(sc, 0x210000, 0x40);
1924 MEM_WRITE_1(sc, 0x210000, 0x00);
1925 MEM_WRITE_1(sc, 0x210000, 0x40);
1927 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
1929 MEM_WRITE_1(sc, 0x210000, 0x00);
1930 MEM_WRITE_1(sc, 0x210000, 0x00);
1931 MEM_WRITE_1(sc, 0x210000, 0x80);
1933 MEM_WRITE_2(sc, 0x220000, 0x0703);
1934 MEM_WRITE_2(sc, 0x220000, 0x0707);
1936 MEM_WRITE_1(sc, 0x210014, 0x72);
1937 MEM_WRITE_1(sc, 0x210014, 0x72);
1939 MEM_WRITE_1(sc, 0x210000, 0x00);
1940 MEM_WRITE_1(sc, 0x210000, 0x80);
1942 for (ntries = 0; ntries < 10; ntries++) {
1943 if (MEM_READ_1(sc, 0x210000) & 1)
1948 device_printf(sc->sc_dev,
1949 "timeout waiting for ucode to initialize\n");
1953 MEM_WRITE_4(sc, 0x3000e0, 0);
1958 /* set of macros to handle unaligned little endian data in firmware image */
1959 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
1960 #define GETLE16(p) ((p)[0] | (p)[1] << 8)
1962 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
1964 const uint8_t *p, *end;
1972 dst = GETLE32(p); p += 4;
1973 len = GETLE16(p); p += 2;
1975 ipw_write_mem_1(sc, dst, p, len);
1979 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
1982 /* enable interrupts */
1983 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1985 /* kick the firmware */
1986 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1988 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1989 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
1991 /* wait at most one second for firmware initialization to complete */
1992 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
1993 device_printf(sc->sc_dev, "timeout waiting for firmware "
1994 "initialization to complete\n");
1998 tmp = CSR_READ_4(sc, IPW_CSR_IO);
1999 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2006 ipw_setwepkeys(struct ipw_softc *sc)
2008 struct ieee80211com *ic = &sc->sc_ic;
2009 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2010 struct ipw_wep_key wepkey;
2011 struct ieee80211_key *wk;
2014 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2015 wk = &vap->iv_nw_keys[i];
2017 if (wk->wk_cipher == NULL ||
2018 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2022 wepkey.len = wk->wk_keylen;
2023 memset(wepkey.key, 0, sizeof wepkey.key);
2024 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2025 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2027 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2036 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2038 struct ipw_wpa_ie wpaie;
2040 memset(&wpaie, 0, sizeof(wpaie));
2041 wpaie.len = htole32(ielen);
2042 /* XXX verify length */
2043 memcpy(&wpaie.ie, ie, ielen);
2044 DPRINTF(("Setting WPA IE\n"));
2045 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2049 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2051 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2053 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2054 DPRINTF(("Setting mandatory BSSID to null\n"));
2055 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2057 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2058 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2059 bssid, IEEE80211_ADDR_LEN);
2064 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2068 * A bug in the firmware breaks the ``don't associate''
2069 * bit in the scan options command. To compensate for
2070 * this install a bogus ssid when no ssid is specified
2071 * so the firmware won't try to associate.
2073 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2074 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2075 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2076 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2077 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2078 "\x3c\x3d", IEEE80211_NWID_LEN);
2081 if (ipw_debug > 0) {
2082 printf("Setting ESSID to ");
2083 ieee80211_print_essid(ssid, ssidlen);
2087 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2092 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2094 struct ipw_scan_options opts;
2096 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2097 opts.channels = htole32(chanmask);
2098 opts.flags = htole32(flags);
2099 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2103 ipw_scan(struct ipw_softc *sc)
2108 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2110 if (sc->flags & IPW_FLAG_SCANNING)
2112 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2114 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2115 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2120 * Setup null/bogus ssid so firmware doesn't use any previous
2121 * ssid to try and associate. This is because the ``don't
2122 * associate'' option bit is broken (sigh).
2124 error = ipw_setssid(sc, NULL, 0);
2129 * NB: the adapter may be disabled on association lost;
2130 * if so just re-enable it to kick off scanning.
2132 DPRINTF(("Starting scan\n"));
2133 sc->sc_scan_timer = 3;
2134 if (sc->flags & IPW_FLAG_ENABLED) {
2135 params = 0; /* XXX? */
2136 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2137 ¶ms, sizeof(params));
2139 error = ipw_enable(sc);
2142 DPRINTF(("Scan failed\n"));
2143 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2149 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2151 struct ieee80211com *ic = &sc->sc_ic;
2155 data = htole32(ieee80211_chan2ieee(ic, chan));
2156 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2157 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2159 ipw_setcurchan(sc, chan);
2164 ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2166 struct ipw_softc *sc = ic->ic_softc;
2167 struct ieee80211_node *ni = vap->iv_bss;
2168 struct ipw_security security;
2173 error = ipw_disable(sc);
2177 memset(&security, 0, sizeof security);
2178 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2179 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2180 security.ciphers = htole32(IPW_CIPHER_NONE);
2181 DPRINTF(("Setting authmode to %u\n", security.authmode));
2182 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2187 data = htole32(vap->iv_rtsthreshold);
2188 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2189 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2193 data = htole32(vap->iv_fragthreshold);
2194 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2195 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2199 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2200 error = ipw_setwepkeys(sc);
2204 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2205 data = htole32(vap->iv_def_txkey);
2206 DPRINTF(("Setting wep tx key index to %u\n",
2208 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2215 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2216 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2217 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2221 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2225 error = ipw_setbssid(sc, ni->ni_bssid);
2229 if (vap->iv_appie_wpa != NULL) {
2230 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2231 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2235 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2236 error = ipw_setchannel(sc, ni->ni_chan);
2241 /* lock scan to ap's channel and enable associate */
2242 error = ipw_setscanopts(sc,
2243 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2247 error = ipw_enable(sc); /* finally, enable adapter */
2249 sc->flags |= IPW_FLAG_ASSOCIATING;
2255 ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2257 struct ieee80211_node *ni = vap->iv_bss;
2258 struct ipw_softc *sc = ic->ic_softc;
2261 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2263 * NB: don't try to do this if ipw_stop_master has
2264 * shutdown the firmware and disabled interrupts.
2266 if (sc->flags & IPW_FLAG_FW_INITED) {
2267 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2269 * NB: firmware currently ignores bssid parameter, but
2270 * supply it in case this changes (follow linux driver).
2272 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2273 ni->ni_bssid, IEEE80211_ADDR_LEN);
2279 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2280 * It is called on firmware panics or on watchdog timeouts.
2283 ipw_init_task(void *context, int pending)
2289 ipw_init(void *priv)
2291 struct ipw_softc *sc = priv;
2292 struct ieee80211com *ic = &sc->sc_ic;
2295 ipw_init_locked(sc);
2298 if (sc->flags & IPW_FLAG_RUNNING)
2299 ieee80211_start_all(ic); /* start all vap's */
2303 ipw_init_locked(struct ipw_softc *sc)
2305 struct ieee80211com *ic = &sc->sc_ic;
2306 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2307 const struct firmware *fp;
2308 const struct ipw_firmware_hdr *hdr;
2311 IPW_LOCK_ASSERT(sc);
2313 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2314 ieee80211_state_name[vap->iv_state], sc->flags));
2317 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2318 * when loading the firmware and we don't want to be called during this
2321 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2323 sc->flags |= IPW_FLAG_INIT_LOCKED;
2325 ipw_stop_locked(sc);
2327 if (ipw_reset(sc) != 0) {
2328 device_printf(sc->sc_dev, "could not reset adapter\n");
2332 if (sc->sc_firmware == NULL) {
2333 device_printf(sc->sc_dev, "no firmware\n");
2336 /* NB: consistency already checked on load */
2337 fp = sc->sc_firmware;
2338 hdr = (const struct ipw_firmware_hdr *)fp->data;
2340 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2341 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2342 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2343 device_printf(sc->sc_dev, "could not load microcode\n");
2347 ipw_stop_master(sc);
2350 * Setup tx, rx and status rings.
2352 sc->txold = IPW_NTBD - 1;
2354 sc->txfree = IPW_NTBD - 2;
2355 sc->rxcur = IPW_NRBD - 1;
2357 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2358 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2359 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2360 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2362 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2363 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2364 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2365 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2367 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2369 fw = (const char *)fp->data + sizeof *hdr;
2370 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2371 device_printf(sc->sc_dev, "could not load firmware\n");
2375 sc->flags |= IPW_FLAG_FW_INITED;
2377 /* retrieve information tables base addresses */
2378 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2379 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2381 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2383 if (ipw_config(sc) != 0) {
2384 device_printf(sc->sc_dev, "device configuration failed\n");
2388 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2389 sc->flags |= IPW_FLAG_RUNNING;
2390 sc->flags &= ~IPW_FLAG_INIT_LOCKED;
2394 ipw_stop_locked(sc);
2395 sc->flags &= ~IPW_FLAG_INIT_LOCKED;
2399 ipw_config(struct ipw_softc *sc)
2401 struct ieee80211com *ic = &sc->sc_ic;
2402 struct ipw_configuration config;
2406 error = ipw_disable(sc);
2410 switch (ic->ic_opmode) {
2411 case IEEE80211_M_STA:
2412 case IEEE80211_M_HOSTAP:
2413 case IEEE80211_M_WDS: /* XXX */
2414 data = htole32(IPW_MODE_BSS);
2416 case IEEE80211_M_IBSS:
2417 case IEEE80211_M_AHDEMO:
2418 data = htole32(IPW_MODE_IBSS);
2420 case IEEE80211_M_MONITOR:
2421 data = htole32(IPW_MODE_MONITOR);
2424 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2427 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2428 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2432 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2433 ic->ic_opmode == IEEE80211_M_MONITOR) {
2434 error = ipw_setchannel(sc, ic->ic_curchan);
2439 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2440 return ipw_enable(sc);
2442 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2443 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2444 if (ic->ic_opmode == IEEE80211_M_IBSS)
2445 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2446 if (ic->ic_promisc > 0)
2447 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2448 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2449 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2450 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2451 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2455 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2456 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2457 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2461 /* Use the same rate set */
2462 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2463 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2467 /* Use the same rate set */
2468 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2469 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2473 data = htole32(IPW_POWER_MODE_CAM);
2474 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2475 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2479 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2480 data = htole32(32); /* default value */
2481 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2482 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2492 ipw_stop(void *priv)
2494 struct ipw_softc *sc = priv;
2497 ipw_stop_locked(sc);
2502 ipw_stop_locked(struct ipw_softc *sc)
2506 IPW_LOCK_ASSERT(sc);
2508 callout_stop(&sc->sc_wdtimer);
2509 ipw_stop_master(sc);
2511 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2514 * Release tx buffers.
2516 for (i = 0; i < IPW_NTBD; i++)
2517 ipw_release_sbd(sc, &sc->stbd_list[i]);
2519 sc->sc_tx_timer = 0;
2520 sc->flags &= ~IPW_FLAG_RUNNING;
2524 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2526 struct ipw_softc *sc = arg1;
2527 uint32_t i, size, buf[256];
2529 memset(buf, 0, sizeof buf);
2531 if (!(sc->flags & IPW_FLAG_FW_INITED))
2532 return SYSCTL_OUT(req, buf, sizeof buf);
2534 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2536 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2537 for (i = 1; i < size; i++)
2538 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2540 return SYSCTL_OUT(req, buf, size);
2544 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2546 struct ipw_softc *sc = arg1;
2549 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2550 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2552 return SYSCTL_OUT(req, &val, sizeof val);
2556 ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2558 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2562 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2564 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2569 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2571 uint32_t addr, info;
2572 uint16_t count, size;
2575 /* addr[4] + count[2] + size[2] */
2576 addr = MEM_READ_4(sc, sc->table2_base + off);
2577 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2580 size = info & 0xffff;
2581 total = count * size;
2589 ipw_read_mem_1(sc, addr, buf, total);
2595 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2598 for (; count > 0; offset++, datap++, count--) {
2599 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2600 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2606 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2609 for (; count > 0; offset++, datap++, count--) {
2610 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2611 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2616 ipw_scan_start(struct ieee80211com *ic)
2618 struct ipw_softc *sc = ic->ic_softc;
2626 ipw_getradiocaps(struct ieee80211com *ic,
2627 int maxchans, int *nchans, struct ieee80211_channel chans[])
2629 struct ipw_softc *sc = ic->ic_softc;
2630 uint8_t bands[IEEE80211_MODE_BYTES];
2633 memset(bands, 0, sizeof(bands));
2634 setbit(bands, IEEE80211_MODE_11B);
2636 for (i = 1; i < 16; i++) {
2637 if (sc->chanmask & (1 << i)) {
2638 ieee80211_add_channel(chans, maxchans, nchans,
2646 ipw_set_channel(struct ieee80211com *ic)
2648 struct ipw_softc *sc = ic->ic_softc;
2651 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2653 ipw_setchannel(sc, ic->ic_curchan);
2660 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2662 /* NB: all channels are scanned at once */
2666 ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2668 /* NB: don't try to abort scan; wait for firmware to finish */
2672 ipw_scan_end(struct ieee80211com *ic)
2674 struct ipw_softc *sc = ic->ic_softc;
2677 sc->flags &= ~IPW_FLAG_SCANNING;