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 void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
120 static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
121 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
122 struct ipw_soft_bd *, struct ipw_soft_buf *);
123 static void ipw_rx_intr(struct ipw_softc *);
124 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
125 static void ipw_tx_intr(struct ipw_softc *);
126 static void ipw_intr(void *);
127 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
128 static const char * ipw_cmdname(int);
129 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
130 static int ipw_tx_start(struct ipw_softc *, struct mbuf *,
131 struct ieee80211_node *);
132 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
133 const struct ieee80211_bpf_params *);
134 static int ipw_transmit(struct ieee80211com *, struct mbuf *);
135 static void ipw_start(struct ipw_softc *);
136 static void ipw_watchdog(void *);
137 static void ipw_parent(struct ieee80211com *);
138 static void ipw_stop_master(struct ipw_softc *);
139 static int ipw_enable(struct ipw_softc *);
140 static int ipw_disable(struct ipw_softc *);
141 static int ipw_reset(struct ipw_softc *);
142 static int ipw_load_ucode(struct ipw_softc *, const char *, int);
143 static int ipw_load_firmware(struct ipw_softc *, const char *, int);
144 static int ipw_config(struct ipw_softc *);
145 static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
146 static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
147 static void ipw_init_task(void *, int);
148 static void ipw_init(void *);
149 static void ipw_init_locked(struct ipw_softc *);
150 static void ipw_stop(void *);
151 static void ipw_stop_locked(struct ipw_softc *);
152 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
153 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
154 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
155 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
157 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
159 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
162 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
163 const uint8_t *, bus_size_t);
164 static int ipw_scan(struct ipw_softc *);
165 static void ipw_scan_start(struct ieee80211com *);
166 static void ipw_scan_end(struct ieee80211com *);
167 static void ipw_set_channel(struct ieee80211com *);
168 static void ipw_scan_curchan(struct ieee80211_scan_state *,
169 unsigned long maxdwell);
170 static void ipw_scan_mindwell(struct ieee80211_scan_state *);
172 static int ipw_probe(device_t);
173 static int ipw_attach(device_t);
174 static int ipw_detach(device_t);
175 static int ipw_shutdown(device_t);
176 static int ipw_suspend(device_t);
177 static int ipw_resume(device_t);
179 static device_method_t ipw_methods[] = {
180 /* Device interface */
181 DEVMETHOD(device_probe, ipw_probe),
182 DEVMETHOD(device_attach, ipw_attach),
183 DEVMETHOD(device_detach, ipw_detach),
184 DEVMETHOD(device_shutdown, ipw_shutdown),
185 DEVMETHOD(device_suspend, ipw_suspend),
186 DEVMETHOD(device_resume, ipw_resume),
191 static driver_t ipw_driver = {
194 sizeof (struct ipw_softc)
197 static devclass_t ipw_devclass;
199 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, NULL, NULL);
201 MODULE_VERSION(ipw, 1);
204 ipw_probe(device_t dev)
206 const struct ipw_ident *ident;
208 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
209 if (pci_get_vendor(dev) == ident->vendor &&
210 pci_get_device(dev) == ident->device) {
211 device_set_desc(dev, ident->name);
212 return (BUS_PROBE_DEFAULT);
218 /* Base Address Register */
220 ipw_attach(device_t dev)
222 struct ipw_softc *sc = device_get_softc(dev);
223 struct ieee80211com *ic = &sc->sc_ic;
224 struct ieee80211_channel *c;
230 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
231 MTX_DEF | MTX_RECURSE);
232 mbufq_init(&sc->sc_snd, ifqmaxlen);
233 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
234 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
236 pci_write_config(dev, 0x41, 0, 1);
238 /* enable bus-mastering */
239 pci_enable_busmaster(dev);
242 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE);
243 if (sc->mem == NULL) {
244 device_printf(dev, "could not allocate memory resource\n");
248 sc->sc_st = rman_get_bustag(sc->mem);
249 sc->sc_sh = rman_get_bushandle(sc->mem);
252 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
253 RF_ACTIVE | RF_SHAREABLE);
254 if (sc->irq == NULL) {
255 device_printf(dev, "could not allocate interrupt resource\n");
259 if (ipw_reset(sc) != 0) {
260 device_printf(dev, "could not reset adapter\n");
264 if (ipw_dma_alloc(sc) != 0) {
265 device_printf(dev, "could not allocate DMA resources\n");
270 ic->ic_name = device_get_nameunit(dev);
271 ic->ic_opmode = IEEE80211_M_STA;
272 ic->ic_phytype = IEEE80211_T_DS;
274 /* set device capabilities */
276 IEEE80211_C_STA /* station mode supported */
277 | IEEE80211_C_IBSS /* IBSS mode supported */
278 | IEEE80211_C_MONITOR /* monitor mode supported */
279 | IEEE80211_C_PMGT /* power save supported */
280 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
281 | IEEE80211_C_WPA /* 802.11i supported */
284 /* read MAC address from EEPROM */
285 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
286 ic->ic_macaddr[0] = val >> 8;
287 ic->ic_macaddr[1] = val & 0xff;
288 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
289 ic->ic_macaddr[2] = val >> 8;
290 ic->ic_macaddr[3] = val & 0xff;
291 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
292 ic->ic_macaddr[4] = val >> 8;
293 ic->ic_macaddr[5] = val & 0xff;
295 /* set supported .11b channels (read from EEPROM) */
296 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
297 val = 0x7ff; /* default to channels 1-11 */
299 for (i = 1; i < 16; i++) {
300 if (val & (1 << i)) {
301 c = &ic->ic_channels[ic->ic_nchans++];
302 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
303 c->ic_flags = IEEE80211_CHAN_B;
308 /* check support for radio transmitter switch in EEPROM */
309 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
310 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
312 ieee80211_ifattach(ic);
313 ic->ic_scan_start = ipw_scan_start;
314 ic->ic_scan_end = ipw_scan_end;
315 ic->ic_set_channel = ipw_set_channel;
316 ic->ic_scan_curchan = ipw_scan_curchan;
317 ic->ic_scan_mindwell = ipw_scan_mindwell;
318 ic->ic_raw_xmit = ipw_raw_xmit;
319 ic->ic_vap_create = ipw_vap_create;
320 ic->ic_vap_delete = ipw_vap_delete;
321 ic->ic_transmit = ipw_transmit;
322 ic->ic_parent = ipw_parent;
324 ieee80211_radiotap_attach(ic,
325 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
326 IPW_TX_RADIOTAP_PRESENT,
327 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
328 IPW_RX_RADIOTAP_PRESENT);
331 * Add a few sysctl knobs.
333 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
334 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
335 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
336 "radio transmitter switch state (0=off, 1=on)");
338 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
339 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
340 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
344 * Hook our interrupt after all initialization is complete.
346 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
347 NULL, ipw_intr, sc, &sc->sc_ih);
349 device_printf(dev, "could not set up interrupt\n");
354 ieee80211_announce(ic);
360 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
362 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
365 mtx_destroy(&sc->sc_mtx);
370 ipw_detach(device_t dev)
372 struct ipw_softc *sc = device_get_softc(dev);
373 struct ieee80211com *ic = &sc->sc_ic;
375 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
377 ieee80211_draintask(ic, &sc->sc_init_task);
380 ieee80211_ifdetach(ic);
382 callout_drain(&sc->sc_wdtimer);
383 mbufq_drain(&sc->sc_snd);
387 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq);
389 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem),
392 if (sc->sc_firmware != NULL) {
393 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
394 sc->sc_firmware = NULL;
397 mtx_destroy(&sc->sc_mtx);
402 static struct ieee80211vap *
403 ipw_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
404 enum ieee80211_opmode opmode, int flags,
405 const uint8_t bssid[IEEE80211_ADDR_LEN],
406 const uint8_t mac[IEEE80211_ADDR_LEN])
408 struct ipw_softc *sc = ic->ic_softc;
410 struct ieee80211vap *vap;
411 const struct firmware *fp;
412 const struct ipw_firmware_hdr *hdr;
413 const char *imagename;
415 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
419 case IEEE80211_M_STA:
420 imagename = "ipw_bss";
422 case IEEE80211_M_IBSS:
423 imagename = "ipw_ibss";
425 case IEEE80211_M_MONITOR:
426 imagename = "ipw_monitor";
433 * Load firmware image using the firmware(9) subsystem. Doing
434 * this unlocked is ok since we're single-threaded by the
437 if (sc->sc_firmware == NULL ||
438 strcmp(sc->sc_firmware->name, imagename) != 0) {
439 if (sc->sc_firmware != NULL)
440 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
441 sc->sc_firmware = firmware_get(imagename);
443 if (sc->sc_firmware == NULL) {
444 device_printf(sc->sc_dev,
445 "could not load firmware image '%s'\n", imagename);
448 fp = sc->sc_firmware;
449 if (fp->datasize < sizeof *hdr) {
450 device_printf(sc->sc_dev,
451 "firmware image too short %zu\n", fp->datasize);
452 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
453 sc->sc_firmware = NULL;
456 hdr = (const struct ipw_firmware_hdr *)fp->data;
457 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
458 le32toh(hdr->ucodesz)) {
459 device_printf(sc->sc_dev,
460 "firmware image too short %zu\n", fp->datasize);
461 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
462 sc->sc_firmware = NULL;
466 ivp = malloc(sizeof(struct ipw_vap), M_80211_VAP, M_WAITOK | M_ZERO);
469 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
470 /* override with driver methods */
471 ivp->newstate = vap->iv_newstate;
472 vap->iv_newstate = ipw_newstate;
475 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status,
477 ic->ic_opmode = opmode;
482 ipw_vap_delete(struct ieee80211vap *vap)
484 struct ipw_vap *ivp = IPW_VAP(vap);
486 ieee80211_vap_detach(vap);
487 free(ivp, M_80211_VAP);
491 ipw_dma_alloc(struct ipw_softc *sc)
493 struct ipw_soft_bd *sbd;
494 struct ipw_soft_hdr *shdr;
495 struct ipw_soft_buf *sbuf;
500 * Allocate parent DMA tag for subsequent allocations.
502 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
503 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
504 BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
505 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
507 device_printf(sc->sc_dev, "could not create parent DMA tag\n");
512 * Allocate and map tx ring.
514 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
515 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
516 NULL, &sc->tbd_dmat);
518 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
522 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
523 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
525 device_printf(sc->sc_dev,
526 "could not allocate tx ring DMA memory\n");
530 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
531 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
533 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
538 * Allocate and map rx ring.
540 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
541 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
542 NULL, &sc->rbd_dmat);
544 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
548 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
549 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
551 device_printf(sc->sc_dev,
552 "could not allocate rx ring DMA memory\n");
556 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
557 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
559 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
564 * Allocate and map status ring.
566 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
567 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
568 NULL, NULL, &sc->status_dmat);
570 device_printf(sc->sc_dev,
571 "could not create status ring DMA tag\n");
575 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
576 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
578 device_printf(sc->sc_dev,
579 "could not allocate status ring DMA memory\n");
583 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
584 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
587 device_printf(sc->sc_dev,
588 "could not map status ring DMA memory\n");
593 * Allocate command DMA map.
595 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
596 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
597 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
599 device_printf(sc->sc_dev, "could not create command DMA tag\n");
603 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
605 device_printf(sc->sc_dev,
606 "could not create command DMA map\n");
611 * Allocate headers DMA maps.
613 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
614 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
615 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
617 device_printf(sc->sc_dev, "could not create header DMA tag\n");
621 SLIST_INIT(&sc->free_shdr);
622 for (i = 0; i < IPW_NDATA; i++) {
623 shdr = &sc->shdr_list[i];
624 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
626 device_printf(sc->sc_dev,
627 "could not create header DMA map\n");
630 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
634 * Allocate tx buffers DMA maps.
636 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
637 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
638 NULL, NULL, &sc->txbuf_dmat);
640 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
644 SLIST_INIT(&sc->free_sbuf);
645 for (i = 0; i < IPW_NDATA; i++) {
646 sbuf = &sc->tx_sbuf_list[i];
647 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
649 device_printf(sc->sc_dev,
650 "could not create tx DMA map\n");
653 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
657 * Initialize tx ring.
659 for (i = 0; i < IPW_NTBD; i++) {
660 sbd = &sc->stbd_list[i];
661 sbd->bd = &sc->tbd_list[i];
662 sbd->type = IPW_SBD_TYPE_NOASSOC;
666 * Pre-allocate rx buffers and DMA maps.
668 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
669 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
670 NULL, &sc->rxbuf_dmat);
672 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
676 for (i = 0; i < IPW_NRBD; i++) {
677 sbd = &sc->srbd_list[i];
678 sbuf = &sc->rx_sbuf_list[i];
679 sbd->bd = &sc->rbd_list[i];
681 sbuf->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
682 if (sbuf->m == NULL) {
683 device_printf(sc->sc_dev,
684 "could not allocate rx mbuf\n");
689 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
691 device_printf(sc->sc_dev,
692 "could not create rx DMA map\n");
696 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
697 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
700 device_printf(sc->sc_dev,
701 "could not map rx DMA memory\n");
705 sbd->type = IPW_SBD_TYPE_DATA;
707 sbd->bd->physaddr = htole32(physaddr);
708 sbd->bd->len = htole32(MCLBYTES);
711 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
715 fail: ipw_release(sc);
720 ipw_release(struct ipw_softc *sc)
722 struct ipw_soft_buf *sbuf;
725 if (sc->parent_dmat != NULL) {
726 bus_dma_tag_destroy(sc->parent_dmat);
729 if (sc->tbd_dmat != NULL) {
730 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
731 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, sc->tbd_map);
732 bus_dma_tag_destroy(sc->tbd_dmat);
735 if (sc->rbd_dmat != NULL) {
736 if (sc->rbd_list != NULL) {
737 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
738 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
741 bus_dma_tag_destroy(sc->rbd_dmat);
744 if (sc->status_dmat != NULL) {
745 if (sc->status_list != NULL) {
746 bus_dmamap_unload(sc->status_dmat, sc->status_map);
747 bus_dmamem_free(sc->status_dmat, sc->status_list,
750 bus_dma_tag_destroy(sc->status_dmat);
753 for (i = 0; i < IPW_NTBD; i++)
754 ipw_release_sbd(sc, &sc->stbd_list[i]);
756 if (sc->cmd_dmat != NULL) {
757 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
758 bus_dma_tag_destroy(sc->cmd_dmat);
761 if (sc->hdr_dmat != NULL) {
762 for (i = 0; i < IPW_NDATA; i++)
763 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
764 bus_dma_tag_destroy(sc->hdr_dmat);
767 if (sc->txbuf_dmat != NULL) {
768 for (i = 0; i < IPW_NDATA; i++) {
769 bus_dmamap_destroy(sc->txbuf_dmat,
770 sc->tx_sbuf_list[i].map);
772 bus_dma_tag_destroy(sc->txbuf_dmat);
775 if (sc->rxbuf_dmat != NULL) {
776 for (i = 0; i < IPW_NRBD; i++) {
777 sbuf = &sc->rx_sbuf_list[i];
778 if (sbuf->m != NULL) {
779 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
780 BUS_DMASYNC_POSTREAD);
781 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
784 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
786 bus_dma_tag_destroy(sc->rxbuf_dmat);
791 ipw_shutdown(device_t dev)
793 struct ipw_softc *sc = device_get_softc(dev);
801 ipw_suspend(device_t dev)
803 struct ipw_softc *sc = device_get_softc(dev);
804 struct ieee80211com *ic = &sc->sc_ic;
806 ieee80211_suspend_all(ic);
811 ipw_resume(device_t dev)
813 struct ipw_softc *sc = device_get_softc(dev);
814 struct ieee80211com *ic = &sc->sc_ic;
816 pci_write_config(dev, 0x41, 0, 1);
818 ieee80211_resume_all(ic);
823 ipw_cvtrate(int ipwrate)
826 case IPW_RATE_DS1: return 2;
827 case IPW_RATE_DS2: return 4;
828 case IPW_RATE_DS5: return 11;
829 case IPW_RATE_DS11: return 22;
835 * The firmware automatically adapts the transmit speed. We report its current
839 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
841 struct ieee80211vap *vap = ifp->if_softc;
842 struct ieee80211com *ic = vap->iv_ic;
843 struct ipw_softc *sc = ic->ic_softc;
845 /* read current transmission rate from adapter */
846 vap->iv_bss->ni_txrate = ipw_cvtrate(
847 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
848 ieee80211_media_status(ifp, imr);
852 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
854 struct ipw_vap *ivp = IPW_VAP(vap);
855 struct ieee80211com *ic = vap->iv_ic;
856 struct ipw_softc *sc = ic->ic_softc;
857 enum ieee80211_state ostate;
859 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
860 ieee80211_state_name[vap->iv_state],
861 ieee80211_state_name[nstate], sc->flags));
863 ostate = vap->iv_state;
864 IEEE80211_UNLOCK(ic);
867 case IEEE80211_S_RUN:
868 if (ic->ic_opmode == IEEE80211_M_IBSS) {
870 * XXX when joining an ibss network we are called
871 * with a SCAN -> RUN transition on scan complete.
872 * Use that to call ipw_assoc. On completing the
873 * join we are then called again with an AUTH -> RUN
874 * transition and we want to do nothing. This is
875 * all totally bogus and needs to be redone.
877 if (ostate == IEEE80211_S_SCAN)
882 case IEEE80211_S_INIT:
883 if (sc->flags & IPW_FLAG_ASSOCIATED)
884 ipw_disassoc(ic, vap);
887 case IEEE80211_S_AUTH:
889 * Move to ASSOC state after the ipw_assoc() call. Firmware
890 * takes care of authentication, after the call we'll receive
891 * only an assoc response which would otherwise be discared
892 * if we are still in AUTH state.
894 nstate = IEEE80211_S_ASSOC;
898 case IEEE80211_S_ASSOC:
900 * If we are not transitioning from AUTH then resend the
901 * association request.
903 if (ostate != IEEE80211_S_AUTH)
911 return ivp->newstate(vap, nstate, arg);
915 * Read 16 bits at address 'addr' from the serial EEPROM.
918 ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
924 /* clock C once before the first command */
925 IPW_EEPROM_CTL(sc, 0);
926 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
927 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
928 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
930 /* write start bit (1) */
931 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
932 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
934 /* write READ opcode (10) */
935 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
936 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
937 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
938 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
940 /* write address A7-A0 */
941 for (n = 7; n >= 0; n--) {
942 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
943 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
944 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
945 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
948 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
950 /* read data Q15-Q0 */
952 for (n = 15; n >= 0; n--) {
953 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
954 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
955 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
956 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
959 IPW_EEPROM_CTL(sc, 0);
961 /* clear Chip Select and clock C */
962 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
963 IPW_EEPROM_CTL(sc, 0);
964 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
970 ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
974 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
976 cmd = mtod(sbuf->m, struct ipw_cmd *);
978 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
979 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
980 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
981 le32toh(cmd->status)));
983 sc->flags &= ~IPW_FLAG_BUSY;
988 ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
990 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
991 struct ieee80211com *ic = &sc->sc_ic;
992 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
995 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
997 state = le32toh(*mtod(sbuf->m, uint32_t *));
1000 case IPW_STATE_ASSOCIATED:
1001 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1002 IEEESTATE(vap), sc->flags));
1003 /* XXX suppress state change in case the fw auto-associates */
1004 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1005 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1006 IEEESTATE(vap), sc->flags));
1009 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1010 sc->flags |= IPW_FLAG_ASSOCIATED;
1013 case IPW_STATE_SCANNING:
1014 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1015 IEEESTATE(vap), sc->flags));
1017 * NB: Check driver state for association on assoc
1018 * loss as the firmware will immediately start to
1019 * scan and we would treat it as a beacon miss if
1020 * we checked the 802.11 layer state.
1022 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1024 /* XXX probably need to issue disassoc to fw */
1025 ieee80211_beacon_miss(ic);
1030 case IPW_STATE_SCAN_COMPLETE:
1032 * XXX For some reason scan requests generate scan
1033 * started + scan done events before any traffic is
1034 * received (e.g. probe response frames). We work
1035 * around this by marking the HACK flag and skipping
1036 * the first scan complete event.
1038 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1039 IEEESTATE(vap), sc->flags));
1040 if (sc->flags & IPW_FLAG_HACK) {
1041 sc->flags &= ~IPW_FLAG_HACK;
1044 if (sc->flags & IPW_FLAG_SCANNING) {
1046 ieee80211_scan_done(vap);
1048 sc->flags &= ~IPW_FLAG_SCANNING;
1049 sc->sc_scan_timer = 0;
1053 case IPW_STATE_ASSOCIATION_LOST:
1054 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1055 IEEESTATE(vap), sc->flags));
1056 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1057 if (vap->iv_state == IEEE80211_S_RUN) {
1059 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1064 case IPW_STATE_DISABLED:
1065 /* XXX? is this right? */
1066 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1067 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1068 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1069 IEEESTATE(vap), sc->flags));
1072 case IPW_STATE_RADIO_DISABLED:
1073 device_printf(sc->sc_dev, "radio turned off\n");
1074 ieee80211_notify_radio(ic, 0);
1075 ipw_stop_locked(sc);
1076 /* XXX start polling thread to detect radio on */
1080 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1081 __func__, state, IEEESTATE(vap), sc->flags));
1088 * Set driver state for current channel.
1091 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1093 struct ieee80211com *ic = &sc->sc_ic;
1095 ic->ic_curchan = chan;
1096 ieee80211_radiotap_chan_change(ic);
1100 * XXX: Hack to set the current channel to the value advertised in beacons or
1101 * probe responses. Only used during AP detection.
1104 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1106 struct ieee80211com *ic = &sc->sc_ic;
1107 struct ieee80211_channel *c;
1108 struct ieee80211_frame *wh;
1110 uint8_t *frm, *efrm;
1112 wh = mtod(m, struct ieee80211_frame *);
1114 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1117 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1119 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1120 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1123 /* XXX use ieee80211_parse_beacon */
1124 frm = (uint8_t *)(wh + 1);
1125 efrm = mtod(m, uint8_t *) + m->m_len;
1127 frm += 12; /* skip tstamp, bintval and capinfo fields */
1128 while (frm < efrm) {
1129 if (*frm == IEEE80211_ELEMID_DSPARMS)
1130 #if IEEE80211_CHAN_MAX < 255
1131 if (frm[2] <= IEEE80211_CHAN_MAX)
1134 DPRINTF(("Fixing channel to %d\n", frm[2]));
1135 c = ieee80211_find_channel(ic,
1136 ieee80211_ieee2mhz(frm[2], 0),
1139 c = &ic->ic_channels[0];
1140 ipw_setcurchan(sc, c);
1148 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1149 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1151 struct ieee80211com *ic = &sc->sc_ic;
1152 struct mbuf *mnew, *m;
1153 struct ieee80211_node *ni;
1154 bus_addr_t physaddr;
1158 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1161 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1162 le32toh(status->len) > MCLBYTES)
1166 * Try to allocate a new mbuf for this ring element and load it before
1167 * processing the current mbuf. If the ring element cannot be loaded,
1168 * drop the received packet and reuse the old mbuf. In the unlikely
1169 * case that the old mbuf can't be reloaded either, explicitly panic.
1171 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1173 counter_u64_add(ic->ic_ierrors, 1);
1177 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1178 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1180 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1181 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1185 /* try to reload the old mbuf */
1186 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1187 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1190 /* very unlikely that it will fail... */
1191 panic("%s: could not load old rx mbuf",
1192 device_get_name(sc->sc_dev));
1194 counter_u64_add(ic->ic_ierrors, 1);
1199 * New mbuf successfully loaded, update Rx ring and continue
1204 sbd->bd->physaddr = htole32(physaddr);
1205 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1207 rssi = status->rssi + IPW_RSSI_TO_DBM;
1209 if (ieee80211_radiotap_active(ic)) {
1210 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1213 tap->wr_antsignal = rssi;
1214 tap->wr_antnoise = nf;
1217 if (sc->flags & IPW_FLAG_SCANNING)
1218 ipw_fix_channel(sc, m);
1221 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1223 (void) ieee80211_input(ni, m, rssi - nf, nf);
1224 ieee80211_free_node(ni);
1226 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
1229 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1233 ipw_rx_intr(struct ipw_softc *sc)
1235 struct ipw_status *status;
1236 struct ipw_soft_bd *sbd;
1237 struct ipw_soft_buf *sbuf;
1240 if (!(sc->flags & IPW_FLAG_FW_INITED))
1243 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1245 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1247 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1248 status = &sc->status_list[i];
1249 sbd = &sc->srbd_list[i];
1252 switch (le16toh(status->code) & 0xf) {
1253 case IPW_STATUS_CODE_COMMAND:
1254 ipw_rx_cmd_intr(sc, sbuf);
1257 case IPW_STATUS_CODE_NEWSTATE:
1258 ipw_rx_newstate_intr(sc, sbuf);
1261 case IPW_STATUS_CODE_DATA_802_3:
1262 case IPW_STATUS_CODE_DATA_802_11:
1263 ipw_rx_data_intr(sc, status, sbd, sbuf);
1266 case IPW_STATUS_CODE_NOTIFICATION:
1267 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1268 le32toh(status->len), status->flags));
1269 /* XXX maybe drive state machine AUTH->ASSOC? */
1273 device_printf(sc->sc_dev, "unexpected status code %u\n",
1274 le16toh(status->code));
1277 /* firmware was killed, stop processing received frames */
1278 if (!(sc->flags & IPW_FLAG_FW_INITED))
1284 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1286 /* kick the firmware */
1287 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1288 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1292 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1294 struct ipw_soft_hdr *shdr;
1295 struct ipw_soft_buf *sbuf;
1297 switch (sbd->type) {
1298 case IPW_SBD_TYPE_COMMAND:
1299 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1300 BUS_DMASYNC_POSTWRITE);
1301 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1304 case IPW_SBD_TYPE_HEADER:
1306 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1307 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1308 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1311 case IPW_SBD_TYPE_DATA:
1313 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1314 BUS_DMASYNC_POSTWRITE);
1315 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1316 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1318 if (sbuf->m->m_flags & M_TXCB)
1319 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1321 ieee80211_free_node(sbuf->ni);
1323 sc->sc_tx_timer = 0;
1327 sbd->type = IPW_SBD_TYPE_NOASSOC;
1331 ipw_tx_intr(struct ipw_softc *sc)
1333 struct ipw_soft_bd *sbd;
1336 if (!(sc->flags & IPW_FLAG_FW_INITED))
1339 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1341 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1342 sbd = &sc->stbd_list[i];
1343 ipw_release_sbd(sc, sbd);
1347 /* remember what the firmware has processed */
1348 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1354 ipw_fatal_error_intr(struct ipw_softc *sc)
1356 struct ieee80211com *ic = &sc->sc_ic;
1357 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1359 device_printf(sc->sc_dev, "firmware error\n");
1362 ieee80211_cancel_scan(vap);
1365 ieee80211_runtask(ic, &sc->sc_init_task);
1371 struct ipw_softc *sc = arg;
1376 r = CSR_READ_4(sc, IPW_CSR_INTR);
1377 if (r == 0 || r == 0xffffffff)
1380 /* disable interrupts */
1381 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1383 /* acknowledge all interrupts */
1384 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1386 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1387 ipw_fatal_error_intr(sc);
1391 if (r & IPW_INTR_FW_INIT_DONE)
1394 if (r & IPW_INTR_RX_TRANSFER)
1397 if (r & IPW_INTR_TX_TRANSFER)
1400 /* re-enable interrupts */
1401 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1407 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1412 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1414 *(bus_addr_t *)arg = segs[0].ds_addr;
1418 ipw_cmdname(int cmd)
1420 static const struct {
1424 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1425 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1426 { IPW_CMD_DISABLE, "DISABLE" },
1427 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1428 { IPW_CMD_ENABLE, "ENABLE" },
1429 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1430 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1431 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1432 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1433 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1434 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1435 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1436 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1437 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1438 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1439 { IPW_CMD_SET_MODE, "SET_MODE" },
1440 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1441 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1442 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1443 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1444 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1445 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1446 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1447 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1448 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1449 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1450 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1453 static char buf[12];
1456 for (i = 0; i < nitems(cmds); i++)
1457 if (cmds[i].cmd == cmd)
1458 return cmds[i].name;
1459 snprintf(buf, sizeof(buf), "%u", cmd);
1464 * Send a command to the firmware and wait for the acknowledgement.
1467 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1469 struct ipw_soft_bd *sbd;
1470 bus_addr_t physaddr;
1473 IPW_LOCK_ASSERT(sc);
1475 if (sc->flags & IPW_FLAG_BUSY) {
1476 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1477 __func__, ipw_cmdname(type));
1480 sc->flags |= IPW_FLAG_BUSY;
1482 sbd = &sc->stbd_list[sc->txcur];
1484 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1485 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1487 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1488 sc->flags &= ~IPW_FLAG_BUSY;
1492 sc->cmd.type = htole32(type);
1493 sc->cmd.subtype = 0;
1494 sc->cmd.len = htole32(len);
1496 memcpy(sc->cmd.data, data, len);
1498 sbd->type = IPW_SBD_TYPE_COMMAND;
1499 sbd->bd->physaddr = htole32(physaddr);
1500 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1502 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1503 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1505 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1506 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1509 if (ipw_debug >= 4) {
1510 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1512 /* Print the data buffer in the higher debug level */
1513 if (ipw_debug >= 9 && len > 0) {
1514 printf(" data: 0x");
1515 for (int i = 1; i <= len; i++)
1516 printf("%1D", (u_char *)data + len - i, "");
1524 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1525 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1527 /* wait at most one second for command to complete */
1528 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1530 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1531 __func__, ipw_cmdname(type), error);
1532 sc->flags &= ~IPW_FLAG_BUSY;
1539 ipw_tx_start(struct ipw_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1541 struct ieee80211com *ic = &sc->sc_ic;
1542 struct ieee80211vap *vap = ni->ni_vap;
1543 struct ieee80211_frame *wh;
1544 struct ipw_soft_bd *sbd;
1545 struct ipw_soft_hdr *shdr;
1546 struct ipw_soft_buf *sbuf;
1547 struct ieee80211_key *k;
1549 bus_dma_segment_t segs[IPW_MAX_NSEG];
1550 bus_addr_t physaddr;
1551 int nsegs, error, i;
1553 wh = mtod(m0, struct ieee80211_frame *);
1555 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1556 k = ieee80211_crypto_encap(ni, m0);
1561 /* packet header may have moved, reset our local pointer */
1562 wh = mtod(m0, struct ieee80211_frame *);
1565 if (ieee80211_radiotap_active_vap(vap)) {
1566 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1570 ieee80211_radiotap_tx(vap, m0);
1573 shdr = SLIST_FIRST(&sc->free_shdr);
1574 sbuf = SLIST_FIRST(&sc->free_sbuf);
1575 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1577 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1578 shdr->hdr.subtype = 0;
1579 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0;
1580 shdr->hdr.encrypt = 0;
1581 shdr->hdr.keyidx = 0;
1582 shdr->hdr.keysz = 0;
1583 shdr->hdr.fragmentsz = 0;
1584 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1585 if (ic->ic_opmode == IEEE80211_M_STA)
1586 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1588 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1590 /* trim IEEE802.11 header */
1591 m_adj(m0, sizeof (struct ieee80211_frame));
1593 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1595 if (error != 0 && error != EFBIG) {
1596 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1602 mnew = m_defrag(m0, M_NOWAIT);
1604 device_printf(sc->sc_dev,
1605 "could not defragment mbuf\n");
1611 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1614 device_printf(sc->sc_dev,
1615 "could not map mbuf (error %d)\n", error);
1621 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1622 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1624 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1625 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1630 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1631 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1633 sbd = &sc->stbd_list[sc->txcur];
1634 sbd->type = IPW_SBD_TYPE_HEADER;
1636 sbd->bd->physaddr = htole32(physaddr);
1637 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1638 sbd->bd->nfrag = 1 + nsegs;
1639 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1640 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1642 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1643 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1644 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1648 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1653 for (i = 0; i < nsegs; i++) {
1654 sbd = &sc->stbd_list[sc->txcur];
1656 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1657 sbd->bd->len = htole32(segs[i].ds_len);
1659 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1660 if (i == nsegs - 1) {
1661 sbd->type = IPW_SBD_TYPE_DATA;
1663 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1665 sbd->type = IPW_SBD_TYPE_NOASSOC;
1666 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1669 DPRINTFN(5, ("sending fragment (%d)\n", i));
1672 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1675 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1676 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1677 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1680 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1686 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1687 const struct ieee80211_bpf_params *params)
1689 /* no support; just discard */
1691 ieee80211_free_node(ni);
1696 ipw_transmit(struct ieee80211com *ic, struct mbuf *m)
1698 struct ipw_softc *sc = ic->ic_softc;
1702 if ((sc->flags & IPW_FLAG_RUNNING) == 0) {
1706 error = mbufq_enqueue(&sc->sc_snd, m);
1717 ipw_start(struct ipw_softc *sc)
1719 struct ieee80211_node *ni;
1722 IPW_LOCK_ASSERT(sc);
1724 while (sc->txfree < 1 + IPW_MAX_NSEG &&
1725 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1726 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1727 if (ipw_tx_start(sc, m, ni) != 0) {
1728 if_inc_counter(ni->ni_vap->iv_ifp,
1729 IFCOUNTER_OERRORS, 1);
1730 ieee80211_free_node(ni);
1733 /* start watchdog timer */
1734 sc->sc_tx_timer = 5;
1739 ipw_watchdog(void *arg)
1741 struct ipw_softc *sc = arg;
1742 struct ieee80211com *ic = &sc->sc_ic;
1744 IPW_LOCK_ASSERT(sc);
1746 if (sc->sc_tx_timer > 0) {
1747 if (--sc->sc_tx_timer == 0) {
1748 device_printf(sc->sc_dev, "device timeout\n");
1749 counter_u64_add(ic->ic_oerrors, 1);
1750 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1753 if (sc->sc_scan_timer > 0) {
1754 if (--sc->sc_scan_timer == 0) {
1755 DPRINTFN(3, ("Scan timeout\n"));
1757 if (sc->flags & IPW_FLAG_SCANNING) {
1759 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1761 sc->flags &= ~IPW_FLAG_SCANNING;
1765 if (sc->flags & IPW_FLAG_RUNNING)
1766 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1770 ipw_parent(struct ieee80211com *ic)
1772 struct ipw_softc *sc = ic->ic_softc;
1776 if (ic->ic_nrunning > 0) {
1777 if (!(sc->flags & IPW_FLAG_RUNNING)) {
1778 ipw_init_locked(sc);
1781 } else if (sc->flags & IPW_FLAG_RUNNING)
1782 ipw_stop_locked(sc);
1785 ieee80211_start_all(ic);
1789 ipw_stop_master(struct ipw_softc *sc)
1794 /* disable interrupts */
1795 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1797 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1798 for (ntries = 0; ntries < 50; ntries++) {
1799 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1804 device_printf(sc->sc_dev, "timeout waiting for master\n");
1806 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1807 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1809 /* Clear all flags except the following */
1810 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1814 ipw_reset(struct ipw_softc *sc)
1819 ipw_stop_master(sc);
1821 /* move adapter to D0 state */
1822 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1823 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1825 /* wait for clock stabilization */
1826 for (ntries = 0; ntries < 1000; ntries++) {
1827 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1834 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1835 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1839 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1840 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1846 ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1848 int ms = hz < 1000 ? 1 : hz/10;
1851 for (i = 0; i < 100; i++) {
1852 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1854 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1855 if (error == 0 || error != EWOULDBLOCK)
1858 DPRINTF(("%s: timeout waiting for %s\n",
1859 __func__, waitfor ? "disable" : "enable"));
1864 ipw_enable(struct ipw_softc *sc)
1868 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1869 DPRINTF(("Enable adapter\n"));
1870 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1873 error = ipw_waitfordisable(sc, 0);
1876 sc->flags |= IPW_FLAG_ENABLED;
1882 ipw_disable(struct ipw_softc *sc)
1886 if (sc->flags & IPW_FLAG_ENABLED) {
1887 DPRINTF(("Disable adapter\n"));
1888 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1891 error = ipw_waitfordisable(sc, 1);
1894 sc->flags &= ~IPW_FLAG_ENABLED;
1900 * Upload the microcode to the device.
1903 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1907 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1908 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1910 MEM_WRITE_2(sc, 0x220000, 0x0703);
1911 MEM_WRITE_2(sc, 0x220000, 0x0707);
1913 MEM_WRITE_1(sc, 0x210014, 0x72);
1914 MEM_WRITE_1(sc, 0x210014, 0x72);
1916 MEM_WRITE_1(sc, 0x210000, 0x40);
1917 MEM_WRITE_1(sc, 0x210000, 0x00);
1918 MEM_WRITE_1(sc, 0x210000, 0x40);
1920 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
1922 MEM_WRITE_1(sc, 0x210000, 0x00);
1923 MEM_WRITE_1(sc, 0x210000, 0x00);
1924 MEM_WRITE_1(sc, 0x210000, 0x80);
1926 MEM_WRITE_2(sc, 0x220000, 0x0703);
1927 MEM_WRITE_2(sc, 0x220000, 0x0707);
1929 MEM_WRITE_1(sc, 0x210014, 0x72);
1930 MEM_WRITE_1(sc, 0x210014, 0x72);
1932 MEM_WRITE_1(sc, 0x210000, 0x00);
1933 MEM_WRITE_1(sc, 0x210000, 0x80);
1935 for (ntries = 0; ntries < 10; ntries++) {
1936 if (MEM_READ_1(sc, 0x210000) & 1)
1941 device_printf(sc->sc_dev,
1942 "timeout waiting for ucode to initialize\n");
1946 MEM_WRITE_4(sc, 0x3000e0, 0);
1951 /* set of macros to handle unaligned little endian data in firmware image */
1952 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
1953 #define GETLE16(p) ((p)[0] | (p)[1] << 8)
1955 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
1957 const uint8_t *p, *end;
1965 dst = GETLE32(p); p += 4;
1966 len = GETLE16(p); p += 2;
1968 ipw_write_mem_1(sc, dst, p, len);
1972 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
1975 /* enable interrupts */
1976 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1978 /* kick the firmware */
1979 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1981 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1982 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
1984 /* wait at most one second for firmware initialization to complete */
1985 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
1986 device_printf(sc->sc_dev, "timeout waiting for firmware "
1987 "initialization to complete\n");
1991 tmp = CSR_READ_4(sc, IPW_CSR_IO);
1992 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
1999 ipw_setwepkeys(struct ipw_softc *sc)
2001 struct ieee80211com *ic = &sc->sc_ic;
2002 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2003 struct ipw_wep_key wepkey;
2004 struct ieee80211_key *wk;
2007 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2008 wk = &vap->iv_nw_keys[i];
2010 if (wk->wk_cipher == NULL ||
2011 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2015 wepkey.len = wk->wk_keylen;
2016 memset(wepkey.key, 0, sizeof wepkey.key);
2017 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2018 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2020 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2029 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2031 struct ipw_wpa_ie wpaie;
2033 memset(&wpaie, 0, sizeof(wpaie));
2034 wpaie.len = htole32(ielen);
2035 /* XXX verify length */
2036 memcpy(&wpaie.ie, ie, ielen);
2037 DPRINTF(("Setting WPA IE\n"));
2038 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2042 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2044 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2046 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2047 DPRINTF(("Setting mandatory BSSID to null\n"));
2048 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2050 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2051 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2052 bssid, IEEE80211_ADDR_LEN);
2057 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2061 * A bug in the firmware breaks the ``don't associate''
2062 * bit in the scan options command. To compensate for
2063 * this install a bogus ssid when no ssid is specified
2064 * so the firmware won't try to associate.
2066 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2067 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2068 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2069 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2070 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2071 "\x3c\x3d", IEEE80211_NWID_LEN);
2074 if (ipw_debug > 0) {
2075 printf("Setting ESSID to ");
2076 ieee80211_print_essid(ssid, ssidlen);
2080 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2085 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2087 struct ipw_scan_options opts;
2089 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2090 opts.channels = htole32(chanmask);
2091 opts.flags = htole32(flags);
2092 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2096 ipw_scan(struct ipw_softc *sc)
2101 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2103 if (sc->flags & IPW_FLAG_SCANNING)
2105 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2107 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2108 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2113 * Setup null/bogus ssid so firmware doesn't use any previous
2114 * ssid to try and associate. This is because the ``don't
2115 * associate'' option bit is broken (sigh).
2117 error = ipw_setssid(sc, NULL, 0);
2122 * NB: the adapter may be disabled on association lost;
2123 * if so just re-enable it to kick off scanning.
2125 DPRINTF(("Starting scan\n"));
2126 sc->sc_scan_timer = 3;
2127 if (sc->flags & IPW_FLAG_ENABLED) {
2128 params = 0; /* XXX? */
2129 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2130 ¶ms, sizeof(params));
2132 error = ipw_enable(sc);
2135 DPRINTF(("Scan failed\n"));
2136 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2142 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2144 struct ieee80211com *ic = &sc->sc_ic;
2148 data = htole32(ieee80211_chan2ieee(ic, chan));
2149 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2150 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2152 ipw_setcurchan(sc, chan);
2157 ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2159 struct ipw_softc *sc = ic->ic_softc;
2160 struct ieee80211_node *ni = vap->iv_bss;
2161 struct ipw_security security;
2166 error = ipw_disable(sc);
2170 memset(&security, 0, sizeof security);
2171 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2172 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2173 security.ciphers = htole32(IPW_CIPHER_NONE);
2174 DPRINTF(("Setting authmode to %u\n", security.authmode));
2175 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2180 data = htole32(vap->iv_rtsthreshold);
2181 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2182 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2186 data = htole32(vap->iv_fragthreshold);
2187 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2188 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2192 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2193 error = ipw_setwepkeys(sc);
2197 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2198 data = htole32(vap->iv_def_txkey);
2199 DPRINTF(("Setting wep tx key index to %u\n",
2201 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2208 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2209 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2210 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2214 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2218 error = ipw_setbssid(sc, ni->ni_bssid);
2222 if (vap->iv_appie_wpa != NULL) {
2223 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2224 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2228 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2229 error = ipw_setchannel(sc, ni->ni_chan);
2234 /* lock scan to ap's channel and enable associate */
2235 error = ipw_setscanopts(sc,
2236 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2240 error = ipw_enable(sc); /* finally, enable adapter */
2242 sc->flags |= IPW_FLAG_ASSOCIATING;
2248 ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2250 struct ieee80211_node *ni = vap->iv_bss;
2251 struct ipw_softc *sc = ic->ic_softc;
2254 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2256 * NB: don't try to do this if ipw_stop_master has
2257 * shutdown the firmware and disabled interrupts.
2259 if (sc->flags & IPW_FLAG_FW_INITED) {
2260 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2262 * NB: firmware currently ignores bssid parameter, but
2263 * supply it in case this changes (follow linux driver).
2265 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2266 ni->ni_bssid, IEEE80211_ADDR_LEN);
2272 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2273 * It is called on firmware panics or on watchdog timeouts.
2276 ipw_init_task(void *context, int pending)
2282 ipw_init(void *priv)
2284 struct ipw_softc *sc = priv;
2285 struct ieee80211com *ic = &sc->sc_ic;
2288 ipw_init_locked(sc);
2291 if (sc->flags & IPW_FLAG_RUNNING)
2292 ieee80211_start_all(ic); /* start all vap's */
2296 ipw_init_locked(struct ipw_softc *sc)
2298 struct ieee80211com *ic = &sc->sc_ic;
2299 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2300 const struct firmware *fp;
2301 const struct ipw_firmware_hdr *hdr;
2304 IPW_LOCK_ASSERT(sc);
2306 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2307 ieee80211_state_name[vap->iv_state], sc->flags));
2310 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2311 * when loading the firmware and we don't want to be called during this
2314 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2316 sc->flags |= IPW_FLAG_INIT_LOCKED;
2318 ipw_stop_locked(sc);
2320 if (ipw_reset(sc) != 0) {
2321 device_printf(sc->sc_dev, "could not reset adapter\n");
2325 if (sc->sc_firmware == NULL) {
2326 device_printf(sc->sc_dev, "no firmware\n");
2329 /* NB: consistency already checked on load */
2330 fp = sc->sc_firmware;
2331 hdr = (const struct ipw_firmware_hdr *)fp->data;
2333 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2334 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2335 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2336 device_printf(sc->sc_dev, "could not load microcode\n");
2340 ipw_stop_master(sc);
2343 * Setup tx, rx and status rings.
2345 sc->txold = IPW_NTBD - 1;
2347 sc->txfree = IPW_NTBD - 2;
2348 sc->rxcur = IPW_NRBD - 1;
2350 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2351 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2352 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2353 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2355 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2356 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2357 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2358 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2360 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2362 fw = (const char *)fp->data + sizeof *hdr;
2363 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2364 device_printf(sc->sc_dev, "could not load firmware\n");
2368 sc->flags |= IPW_FLAG_FW_INITED;
2370 /* retrieve information tables base addresses */
2371 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2372 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2374 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2376 if (ipw_config(sc) != 0) {
2377 device_printf(sc->sc_dev, "device configuration failed\n");
2381 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2382 sc->flags |= IPW_FLAG_RUNNING;
2383 sc->flags &= ~IPW_FLAG_INIT_LOCKED;
2387 ipw_stop_locked(sc);
2388 sc->flags &= ~IPW_FLAG_INIT_LOCKED;
2392 ipw_config(struct ipw_softc *sc)
2394 struct ieee80211com *ic = &sc->sc_ic;
2395 struct ipw_configuration config;
2399 error = ipw_disable(sc);
2403 switch (ic->ic_opmode) {
2404 case IEEE80211_M_STA:
2405 case IEEE80211_M_HOSTAP:
2406 case IEEE80211_M_WDS: /* XXX */
2407 data = htole32(IPW_MODE_BSS);
2409 case IEEE80211_M_IBSS:
2410 case IEEE80211_M_AHDEMO:
2411 data = htole32(IPW_MODE_IBSS);
2413 case IEEE80211_M_MONITOR:
2414 data = htole32(IPW_MODE_MONITOR);
2417 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2420 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2421 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2425 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2426 ic->ic_opmode == IEEE80211_M_MONITOR) {
2427 error = ipw_setchannel(sc, ic->ic_curchan);
2432 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2433 return ipw_enable(sc);
2435 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2436 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2437 if (ic->ic_opmode == IEEE80211_M_IBSS)
2438 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2439 if (ic->ic_promisc > 0)
2440 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2441 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2442 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2443 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2444 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2448 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2449 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2450 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2454 /* Use the same rate set */
2455 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2456 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2460 /* Use the same rate set */
2461 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2462 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2466 data = htole32(IPW_POWER_MODE_CAM);
2467 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2468 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2472 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2473 data = htole32(32); /* default value */
2474 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2475 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2485 ipw_stop(void *priv)
2487 struct ipw_softc *sc = priv;
2490 ipw_stop_locked(sc);
2495 ipw_stop_locked(struct ipw_softc *sc)
2499 IPW_LOCK_ASSERT(sc);
2501 callout_stop(&sc->sc_wdtimer);
2502 ipw_stop_master(sc);
2504 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2507 * Release tx buffers.
2509 for (i = 0; i < IPW_NTBD; i++)
2510 ipw_release_sbd(sc, &sc->stbd_list[i]);
2512 sc->sc_tx_timer = 0;
2513 sc->flags &= ~IPW_FLAG_RUNNING;
2517 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2519 struct ipw_softc *sc = arg1;
2520 uint32_t i, size, buf[256];
2522 memset(buf, 0, sizeof buf);
2524 if (!(sc->flags & IPW_FLAG_FW_INITED))
2525 return SYSCTL_OUT(req, buf, sizeof buf);
2527 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2529 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2530 for (i = 1; i < size; i++)
2531 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2533 return SYSCTL_OUT(req, buf, size);
2537 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2539 struct ipw_softc *sc = arg1;
2542 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2543 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2545 return SYSCTL_OUT(req, &val, sizeof val);
2549 ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2551 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2555 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2557 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2562 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2564 uint32_t addr, info;
2565 uint16_t count, size;
2568 /* addr[4] + count[2] + size[2] */
2569 addr = MEM_READ_4(sc, sc->table2_base + off);
2570 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2573 size = info & 0xffff;
2574 total = count * size;
2582 ipw_read_mem_1(sc, addr, buf, total);
2588 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2591 for (; count > 0; offset++, datap++, count--) {
2592 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2593 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2599 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2602 for (; count > 0; offset++, datap++, count--) {
2603 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2604 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2609 ipw_scan_start(struct ieee80211com *ic)
2611 struct ipw_softc *sc = ic->ic_softc;
2619 ipw_set_channel(struct ieee80211com *ic)
2621 struct ipw_softc *sc = ic->ic_softc;
2624 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2626 ipw_setchannel(sc, ic->ic_curchan);
2633 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2635 /* NB: all channels are scanned at once */
2639 ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2641 /* NB: don't try to abort scan; wait for firmware to finish */
2645 ipw_scan_end(struct ieee80211com *ic)
2647 struct ipw_softc *sc = ic->ic_softc;
2650 sc->flags &= ~IPW_FLAG_SCANNING;