4 * Copyright (c) 2004-2006
5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
6 * Copyright (c) 2006 Sam Leffler, Errno Consulting
7 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice unmodified, this list of conditions, and the following
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
36 * Intel(R) PRO/Wireless 2100 MiniPCI driver
37 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm
40 #include <sys/param.h>
41 #include <sys/sysctl.h>
42 #include <sys/sockio.h>
44 #include <sys/kernel.h>
45 #include <sys/socket.h>
46 #include <sys/systm.h>
47 #include <sys/malloc.h>
48 #include <sys/queue.h>
49 #include <sys/taskqueue.h>
50 #include <sys/module.h>
52 #include <sys/endian.h>
53 #include <sys/linker.h>
54 #include <sys/firmware.h>
56 #include <machine/bus.h>
57 #include <machine/resource.h>
60 #include <dev/pci/pcireg.h>
61 #include <dev/pci/pcivar.h>
65 #include <net/if_arp.h>
66 #include <net/ethernet.h>
67 #include <net/if_dl.h>
68 #include <net/if_media.h>
69 #include <net/if_types.h>
71 #include <net80211/ieee80211_var.h>
72 #include <net80211/ieee80211_radiotap.h>
74 #include <netinet/in.h>
75 #include <netinet/in_systm.h>
76 #include <netinet/in_var.h>
77 #include <netinet/ip.h>
78 #include <netinet/if_ether.h>
80 #include <dev/ipw/if_ipwreg.h>
81 #include <dev/ipw/if_ipwvar.h>
85 #define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0)
86 #define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0)
88 SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level");
91 #define DPRINTFN(n, x)
94 MODULE_DEPEND(ipw, pci, 1, 1, 1);
95 MODULE_DEPEND(ipw, wlan, 1, 1, 1);
96 MODULE_DEPEND(ipw, firmware, 1, 1, 1);
104 static const struct ipw_ident ipw_ident_table[] = {
105 { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" },
110 static struct ieee80211vap *ipw_vap_create(struct ieee80211com *,
111 const char name[IFNAMSIZ], int unit, int opmode, int flags,
112 const uint8_t bssid[IEEE80211_ADDR_LEN],
113 const uint8_t mac[IEEE80211_ADDR_LEN]);
114 static void ipw_vap_delete(struct ieee80211vap *);
115 static int ipw_dma_alloc(struct ipw_softc *);
116 static void ipw_release(struct ipw_softc *);
117 static void ipw_media_status(struct ifnet *, struct ifmediareq *);
118 static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int);
119 static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t);
120 static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *);
121 static void ipw_assocsuccess(void *, int);
122 static void ipw_assocfailed(void *, int);
123 static void ipw_scandone(void *, int);
124 static void ipw_bmiss(void *, int);
125 static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
126 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
127 struct ipw_soft_bd *, struct ipw_soft_buf *);
128 static void ipw_rx_intr(struct ipw_softc *);
129 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
130 static void ipw_tx_intr(struct ipw_softc *);
131 static void ipw_intr(void *);
132 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
133 static const char * ipw_cmdname(int);
134 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
135 static int ipw_tx_start(struct ifnet *, struct mbuf *,
136 struct ieee80211_node *);
137 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
138 const struct ieee80211_bpf_params *);
139 static void ipw_start(struct ifnet *);
140 static void ipw_start_locked(struct ifnet *);
141 static void ipw_watchdog(void *);
142 static int ipw_ioctl(struct ifnet *, u_long, caddr_t);
143 static void ipw_stop_master(struct ipw_softc *);
144 static int ipw_enable(struct ipw_softc *);
145 static int ipw_disable(struct ipw_softc *);
146 static int ipw_reset(struct ipw_softc *);
147 static int ipw_load_ucode(struct ipw_softc *, const char *, int);
148 static int ipw_load_firmware(struct ipw_softc *, const char *, int);
149 static int ipw_config(struct ipw_softc *);
150 static void ipw_assoc_task(void *, int);
151 static void ipw_disassoc_task(void *, int);
152 static void ipw_init_task(void *, int);
153 static void ipw_init(void *);
154 static void ipw_init_locked(struct ipw_softc *);
155 static void ipw_stop(void *);
156 static void ipw_stop_locked(struct ipw_softc *);
157 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
158 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
159 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
160 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
162 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
164 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
167 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
168 const uint8_t *, bus_size_t);
169 static void ipw_scan_task(void *, int);
170 static int ipw_scan(struct ipw_softc *);
171 static void ipw_scan_start(struct ieee80211com *);
172 static void ipw_scan_end(struct ieee80211com *);
173 static void ipw_set_channel(struct ieee80211com *);
174 static void ipw_scan_curchan(struct ieee80211_scan_state *,
175 unsigned long maxdwell);
176 static void ipw_scan_mindwell(struct ieee80211_scan_state *);
178 static int ipw_probe(device_t);
179 static int ipw_attach(device_t);
180 static int ipw_detach(device_t);
181 static int ipw_shutdown(device_t);
182 static int ipw_suspend(device_t);
183 static int ipw_resume(device_t);
185 static device_method_t ipw_methods[] = {
186 /* Device interface */
187 DEVMETHOD(device_probe, ipw_probe),
188 DEVMETHOD(device_attach, ipw_attach),
189 DEVMETHOD(device_detach, ipw_detach),
190 DEVMETHOD(device_shutdown, ipw_shutdown),
191 DEVMETHOD(device_suspend, ipw_suspend),
192 DEVMETHOD(device_resume, ipw_resume),
197 static driver_t ipw_driver = {
200 sizeof (struct ipw_softc)
203 static devclass_t ipw_devclass;
205 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, 0, 0);
206 DRIVER_MODULE(ipw, cardbus, ipw_driver, ipw_devclass, 0, 0);
209 ipw_probe(device_t dev)
211 const struct ipw_ident *ident;
213 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
214 if (pci_get_vendor(dev) == ident->vendor &&
215 pci_get_device(dev) == ident->device) {
216 device_set_desc(dev, ident->name);
223 /* Base Address Register */
224 #define IPW_PCI_BAR0 0x10
227 ipw_attach(device_t dev)
229 struct ipw_softc *sc = device_get_softc(dev);
231 struct ieee80211com *ic;
232 struct ieee80211_channel *c;
238 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
239 MTX_DEF | MTX_RECURSE);
241 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
242 TASK_INIT(&sc->sc_scan_task, 0, ipw_scan_task, sc);
243 TASK_INIT(&sc->sc_bmiss_task, 0, ipw_bmiss, sc);
244 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
246 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
247 device_printf(dev, "chip is in D%d power mode "
248 "-- setting to D0\n", pci_get_powerstate(dev));
249 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
252 pci_write_config(dev, 0x41, 0, 1);
254 /* enable bus-mastering */
255 pci_enable_busmaster(dev);
257 sc->mem_rid = IPW_PCI_BAR0;
258 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
260 if (sc->mem == NULL) {
261 device_printf(dev, "could not allocate memory resource\n");
265 sc->sc_st = rman_get_bustag(sc->mem);
266 sc->sc_sh = rman_get_bushandle(sc->mem);
269 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
270 RF_ACTIVE | RF_SHAREABLE);
271 if (sc->irq == NULL) {
272 device_printf(dev, "could not allocate interrupt resource\n");
276 if (ipw_reset(sc) != 0) {
277 device_printf(dev, "could not reset adapter\n");
281 if (ipw_dma_alloc(sc) != 0) {
282 device_printf(dev, "could not allocate DMA resources\n");
286 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
288 device_printf(dev, "can not if_alloc()\n");
294 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
295 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
296 ifp->if_init = ipw_init;
297 ifp->if_ioctl = ipw_ioctl;
298 ifp->if_start = ipw_start;
299 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
300 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
301 IFQ_SET_READY(&ifp->if_snd);
304 ic->ic_opmode = IEEE80211_M_STA;
305 ic->ic_phytype = IEEE80211_T_DS;
307 /* set device capabilities */
308 ic->ic_caps = IEEE80211_C_IBSS /* IBSS mode supported */
309 | IEEE80211_C_MONITOR /* monitor mode supported */
310 | IEEE80211_C_PMGT /* power save supported */
311 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
312 | IEEE80211_C_WPA /* 802.11i supported */
315 /* read MAC address from EEPROM */
316 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
317 ic->ic_myaddr[0] = val >> 8;
318 ic->ic_myaddr[1] = val & 0xff;
319 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
320 ic->ic_myaddr[2] = val >> 8;
321 ic->ic_myaddr[3] = val & 0xff;
322 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
323 ic->ic_myaddr[4] = val >> 8;
324 ic->ic_myaddr[5] = val & 0xff;
326 /* set supported .11b channels (read from EEPROM) */
327 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
328 val = 0x7ff; /* default to channels 1-11 */
330 for (i = 1; i < 16; i++) {
331 if (val & (1 << i)) {
332 c = &ic->ic_channels[ic->ic_nchans++];
333 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
334 c->ic_flags = IEEE80211_CHAN_B;
339 /* check support for radio transmitter switch in EEPROM */
340 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
341 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
343 ieee80211_ifattach(ic);
344 ic->ic_scan_start = ipw_scan_start;
345 ic->ic_scan_end = ipw_scan_end;
346 ic->ic_set_channel = ipw_set_channel;
347 ic->ic_scan_curchan = ipw_scan_curchan;
348 ic->ic_scan_mindwell = ipw_scan_mindwell;
349 ic->ic_raw_xmit = ipw_raw_xmit;
351 ic->ic_vap_create = ipw_vap_create;
352 ic->ic_vap_delete = ipw_vap_delete;
354 bpfattach(ifp, DLT_IEEE802_11_RADIO,
355 sizeof (struct ieee80211_frame) + sizeof (sc->sc_txtap));
357 sc->sc_rxtap_len = sizeof sc->sc_rxtap;
358 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
359 sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT);
361 sc->sc_txtap_len = sizeof sc->sc_txtap;
362 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
363 sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT);
366 * Add a few sysctl knobs.
368 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
369 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
370 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
371 "radio transmitter switch state (0=off, 1=on)");
373 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
374 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
375 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
379 * Hook our interrupt after all initialization is complete.
381 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
382 NULL, ipw_intr, sc, &sc->sc_ih);
384 device_printf(dev, "could not set up interrupt\n");
389 ieee80211_announce(ic);
397 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
399 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
401 mtx_destroy(&sc->sc_mtx);
406 ipw_detach(device_t dev)
408 struct ipw_softc *sc = device_get_softc(dev);
409 struct ifnet *ifp = sc->sc_ifp;
410 struct ieee80211com *ic = ifp->if_l2com;
415 ieee80211_ifdetach(ic);
417 callout_drain(&sc->sc_wdtimer);
418 taskqueue_drain(taskqueue_fast, &sc->sc_init_task);
419 taskqueue_drain(taskqueue_fast, &sc->sc_scan_task);
420 taskqueue_drain(taskqueue_fast, &sc->sc_bmiss_task);
424 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
425 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
427 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
431 if (sc->sc_firmware != NULL) {
432 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
433 sc->sc_firmware = NULL;
436 mtx_destroy(&sc->sc_mtx);
441 static struct ieee80211vap *
442 ipw_vap_create(struct ieee80211com *ic,
443 const char name[IFNAMSIZ], int unit, int opmode, int flags,
444 const uint8_t bssid[IEEE80211_ADDR_LEN],
445 const uint8_t mac[IEEE80211_ADDR_LEN])
447 struct ifnet *ifp = ic->ic_ifp;
448 struct ipw_softc *sc = ifp->if_softc;
450 struct ieee80211vap *vap;
451 const struct firmware *fp;
452 const struct ipw_firmware_hdr *hdr;
453 const char *imagename;
455 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
459 case IEEE80211_M_STA:
460 imagename = "ipw_bss";
462 case IEEE80211_M_IBSS:
463 imagename = "ipw_ibss";
465 case IEEE80211_M_MONITOR:
466 imagename = "ipw_monitor";
473 * Load firmware image using the firmware(9) subsystem. Doing
474 * this unlocked is ok since we're single-threaded by the
477 if (sc->sc_firmware == NULL ||
478 strcmp(sc->sc_firmware->name, imagename) != 0) {
479 if (sc->sc_firmware != NULL)
480 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
481 sc->sc_firmware = firmware_get(imagename);
483 if (sc->sc_firmware == NULL) {
484 device_printf(sc->sc_dev,
485 "could not load firmware image '%s'\n", imagename);
488 fp = sc->sc_firmware;
489 if (fp->datasize < sizeof *hdr) {
490 device_printf(sc->sc_dev,
491 "firmware image too short %zu\n", fp->datasize);
492 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
493 sc->sc_firmware = NULL;
496 hdr = (const struct ipw_firmware_hdr *)fp->data;
497 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
498 le32toh(hdr->ucodesz)) {
499 device_printf(sc->sc_dev,
500 "firmware image too short %zu\n", fp->datasize);
501 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
502 sc->sc_firmware = NULL;
506 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap),
507 M_80211_VAP, M_NOWAIT | M_ZERO);
512 TASK_INIT(&ivp->assoc_task, 0, ipw_assoc_task, vap);
513 TASK_INIT(&ivp->disassoc_task, 0, ipw_disassoc_task, vap);
514 TASK_INIT(&ivp->assoc_success_task, 0, ipw_assocsuccess, vap);
515 TASK_INIT(&ivp->assoc_failed_task, 0, ipw_assocfailed, vap);
516 TASK_INIT(&ivp->scandone_task, 0, ipw_scandone, vap);
518 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
519 /* override with driver methods */
520 ivp->newstate = vap->iv_newstate;
521 vap->iv_newstate = ipw_newstate;
524 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status);
525 ic->ic_opmode = opmode;
530 ipw_vap_delete(struct ieee80211vap *vap)
532 struct ipw_vap *ivp = IPW_VAP(vap);
534 ieee80211_vap_detach(vap);
535 free(ivp, M_80211_VAP);
539 ipw_dma_alloc(struct ipw_softc *sc)
541 struct ipw_soft_bd *sbd;
542 struct ipw_soft_hdr *shdr;
543 struct ipw_soft_buf *sbuf;
548 * Allocate and map tx ring.
550 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
551 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
552 NULL, &sc->tbd_dmat);
554 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
558 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
559 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
561 device_printf(sc->sc_dev,
562 "could not allocate tx ring DMA memory\n");
566 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
567 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
569 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
574 * Allocate and map rx ring.
576 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
577 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
578 NULL, &sc->rbd_dmat);
580 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
584 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
585 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
587 device_printf(sc->sc_dev,
588 "could not allocate rx ring DMA memory\n");
592 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
593 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
595 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
600 * Allocate and map status ring.
602 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
603 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
604 NULL, NULL, &sc->status_dmat);
606 device_printf(sc->sc_dev,
607 "could not create status ring DMA tag\n");
611 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
612 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
614 device_printf(sc->sc_dev,
615 "could not allocate status ring DMA memory\n");
619 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
620 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
623 device_printf(sc->sc_dev,
624 "could not map status ring DMA memory\n");
629 * Allocate command DMA map.
631 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
632 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
633 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
635 device_printf(sc->sc_dev, "could not create command DMA tag\n");
639 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
641 device_printf(sc->sc_dev,
642 "could not create command DMA map\n");
647 * Allocate headers DMA maps.
649 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
650 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
651 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
653 device_printf(sc->sc_dev, "could not create header DMA tag\n");
657 SLIST_INIT(&sc->free_shdr);
658 for (i = 0; i < IPW_NDATA; i++) {
659 shdr = &sc->shdr_list[i];
660 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
662 device_printf(sc->sc_dev,
663 "could not create header DMA map\n");
666 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
670 * Allocate tx buffers DMA maps.
672 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
673 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
674 NULL, NULL, &sc->txbuf_dmat);
676 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
680 SLIST_INIT(&sc->free_sbuf);
681 for (i = 0; i < IPW_NDATA; i++) {
682 sbuf = &sc->tx_sbuf_list[i];
683 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
685 device_printf(sc->sc_dev,
686 "could not create tx DMA map\n");
689 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
693 * Initialize tx ring.
695 for (i = 0; i < IPW_NTBD; i++) {
696 sbd = &sc->stbd_list[i];
697 sbd->bd = &sc->tbd_list[i];
698 sbd->type = IPW_SBD_TYPE_NOASSOC;
702 * Pre-allocate rx buffers and DMA maps.
704 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
705 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
706 NULL, &sc->rxbuf_dmat);
708 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
712 for (i = 0; i < IPW_NRBD; i++) {
713 sbd = &sc->srbd_list[i];
714 sbuf = &sc->rx_sbuf_list[i];
715 sbd->bd = &sc->rbd_list[i];
717 sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
718 if (sbuf->m == NULL) {
719 device_printf(sc->sc_dev,
720 "could not allocate rx mbuf\n");
725 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
727 device_printf(sc->sc_dev,
728 "could not create rx DMA map\n");
732 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
733 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
736 device_printf(sc->sc_dev,
737 "could not map rx DMA memory\n");
741 sbd->type = IPW_SBD_TYPE_DATA;
743 sbd->bd->physaddr = htole32(physaddr);
744 sbd->bd->len = htole32(MCLBYTES);
747 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
751 fail: ipw_release(sc);
756 ipw_release(struct ipw_softc *sc)
758 struct ipw_soft_buf *sbuf;
761 if (sc->tbd_dmat != NULL) {
762 if (sc->stbd_list != NULL) {
763 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
764 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list,
767 bus_dma_tag_destroy(sc->tbd_dmat);
770 if (sc->rbd_dmat != NULL) {
771 if (sc->rbd_list != NULL) {
772 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
773 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
776 bus_dma_tag_destroy(sc->rbd_dmat);
779 if (sc->status_dmat != NULL) {
780 if (sc->status_list != NULL) {
781 bus_dmamap_unload(sc->status_dmat, sc->status_map);
782 bus_dmamem_free(sc->status_dmat, sc->status_list,
785 bus_dma_tag_destroy(sc->status_dmat);
788 for (i = 0; i < IPW_NTBD; i++)
789 ipw_release_sbd(sc, &sc->stbd_list[i]);
791 if (sc->cmd_dmat != NULL) {
792 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
793 bus_dma_tag_destroy(sc->cmd_dmat);
796 if (sc->hdr_dmat != NULL) {
797 for (i = 0; i < IPW_NDATA; i++)
798 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
799 bus_dma_tag_destroy(sc->hdr_dmat);
802 if (sc->txbuf_dmat != NULL) {
803 for (i = 0; i < IPW_NDATA; i++) {
804 bus_dmamap_destroy(sc->txbuf_dmat,
805 sc->tx_sbuf_list[i].map);
807 bus_dma_tag_destroy(sc->txbuf_dmat);
810 if (sc->rxbuf_dmat != NULL) {
811 for (i = 0; i < IPW_NRBD; i++) {
812 sbuf = &sc->rx_sbuf_list[i];
813 if (sbuf->m != NULL) {
814 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
815 BUS_DMASYNC_POSTREAD);
816 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
819 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
821 bus_dma_tag_destroy(sc->rxbuf_dmat);
826 ipw_shutdown(device_t dev)
828 struct ipw_softc *sc = device_get_softc(dev);
836 ipw_suspend(device_t dev)
838 struct ipw_softc *sc = device_get_softc(dev);
846 ipw_resume(device_t dev)
848 struct ipw_softc *sc = device_get_softc(dev);
849 struct ifnet *ifp = sc->sc_ifp;
851 pci_write_config(dev, 0x41, 0, 1);
853 if (ifp->if_flags & IFF_UP)
860 ipw_cvtrate(int ipwrate)
863 case IPW_RATE_DS1: return 2;
864 case IPW_RATE_DS2: return 4;
865 case IPW_RATE_DS5: return 11;
866 case IPW_RATE_DS11: return 22;
872 * The firmware automatically adapts the transmit speed. We report its current
876 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
878 struct ieee80211vap *vap = ifp->if_softc;
879 struct ieee80211com *ic = vap->iv_ic;
880 struct ipw_softc *sc = ic->ic_ifp->if_softc;
882 /* read current transmission rate from adapter */
883 vap->iv_bss->ni_txrate = ipw_cvtrate(
884 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
885 ieee80211_media_status(ifp, imr);
889 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
891 struct ipw_vap *ivp = IPW_VAP(vap);
892 struct ieee80211com *ic = vap->iv_ic;
893 struct ifnet *ifp = ic->ic_ifp;
894 struct ipw_softc *sc = ifp->if_softc;
896 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
897 ieee80211_state_name[vap->iv_state],
898 ieee80211_state_name[nstate], sc->flags));
901 case IEEE80211_S_RUN:
902 if (ic->ic_opmode == IEEE80211_M_IBSS) {
904 * XXX when joining an ibss network we are called
905 * with a SCAN -> RUN transition on scan complete.
906 * Use that to call ipw_auth_and_assoc. On completing
907 * the join we are then called again with an
908 * AUTH -> RUN transition and we want to do nothing.
909 * This is all totally bogus and needs to be redone.
911 if (vap->iv_state == IEEE80211_S_SCAN) {
912 taskqueue_enqueue(taskqueue_swi,
913 &IPW_VAP(vap)->assoc_task);
919 case IEEE80211_S_INIT:
920 if (sc->flags & IPW_FLAG_ASSOCIATED)
921 taskqueue_enqueue(taskqueue_swi,
922 &IPW_VAP(vap)->disassoc_task);
925 case IEEE80211_S_AUTH:
926 taskqueue_enqueue(taskqueue_swi, &IPW_VAP(vap)->assoc_task);
929 case IEEE80211_S_ASSOC:
931 * If we are not transitioning from AUTH the resend the
932 * association request.
934 if (vap->iv_state != IEEE80211_S_AUTH) {
935 taskqueue_enqueue(taskqueue_swi,
936 &IPW_VAP(vap)->assoc_task);
944 return ivp->newstate(vap, nstate, arg);
948 * Read 16 bits at address 'addr' from the serial EEPROM.
951 ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
957 /* clock C once before the first command */
958 IPW_EEPROM_CTL(sc, 0);
959 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
960 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
961 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
963 /* write start bit (1) */
964 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
965 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
967 /* write READ opcode (10) */
968 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
969 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
970 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
971 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
973 /* write address A7-A0 */
974 for (n = 7; n >= 0; n--) {
975 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
976 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
977 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
978 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
981 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
983 /* read data Q15-Q0 */
985 for (n = 15; n >= 0; n--) {
986 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
987 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
988 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
989 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
992 IPW_EEPROM_CTL(sc, 0);
994 /* clear Chip Select and clock C */
995 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
996 IPW_EEPROM_CTL(sc, 0);
997 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
1003 ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1005 struct ipw_cmd *cmd;
1007 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1009 cmd = mtod(sbuf->m, struct ipw_cmd *);
1011 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
1012 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
1013 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
1014 le32toh(cmd->status)));
1016 sc->flags &= ~IPW_FLAG_BUSY;
1021 ipw_assocsuccess(void *arg, int npending)
1023 struct ieee80211vap *vap = arg;
1025 ieee80211_new_state(vap, IEEE80211_S_RUN, -1);
1029 ipw_assocfailed(void *arg, int npending)
1031 struct ieee80211vap *vap = arg;
1033 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1037 ipw_scandone(void *arg, int npending)
1039 struct ieee80211vap *vap = arg;
1041 ieee80211_scan_done(vap);
1045 ipw_bmiss(void *arg, int npending)
1047 struct ieee80211com *ic = arg;
1049 ieee80211_beacon_miss(ic);
1053 ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1055 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
1056 struct ifnet *ifp = sc->sc_ifp;
1057 struct ieee80211com *ic = ifp->if_l2com;
1058 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1061 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1063 state = le32toh(*mtod(sbuf->m, uint32_t *));
1066 case IPW_STATE_ASSOCIATED:
1067 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1068 IEEESTATE(vap), sc->flags));
1069 /* XXX suppress state change in case the fw auto-associates */
1070 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1071 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1072 IEEESTATE(vap), sc->flags));
1075 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1076 sc->flags |= IPW_FLAG_ASSOCIATED;
1077 taskqueue_enqueue(taskqueue_swi,
1078 &IPW_VAP(vap)->assoc_success_task);
1081 case IPW_STATE_SCANNING:
1082 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1083 IEEESTATE(vap), sc->flags));
1085 * NB: Check driver state for association on assoc
1086 * loss as the firmware will immediately start to
1087 * scan and we would treat it as a beacon miss if
1088 * we checked the 802.11 layer state.
1090 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1091 /* XXX probably need to issue disassoc to fw */
1092 taskqueue_enqueue(taskqueue_swi, &sc->sc_bmiss_task);
1096 case IPW_STATE_SCAN_COMPLETE:
1098 * XXX For some reason scan requests generate scan
1099 * started + scan done events before any traffic is
1100 * received (e.g. probe response frames). We work
1101 * around this by marking the HACK flag and skipping
1102 * the first scan complete event.
1104 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1105 IEEESTATE(vap), sc->flags));
1106 if (sc->flags & IPW_FLAG_HACK) {
1107 sc->flags &= ~IPW_FLAG_HACK;
1110 if (sc->flags & IPW_FLAG_SCANNING) {
1111 taskqueue_enqueue(taskqueue_swi,
1112 &IPW_VAP(vap)->scandone_task);
1113 sc->flags &= ~IPW_FLAG_SCANNING;
1114 sc->sc_scan_timer = 0;
1118 case IPW_STATE_ASSOCIATION_LOST:
1119 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1120 IEEESTATE(vap), sc->flags));
1121 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1122 if (vap->iv_state == IEEE80211_S_RUN)
1123 taskqueue_enqueue(taskqueue_swi,
1124 &IPW_VAP(vap)->assoc_failed_task);
1127 case IPW_STATE_DISABLED:
1128 /* XXX? is this right? */
1129 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1130 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1131 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1132 IEEESTATE(vap), sc->flags));
1135 case IPW_STATE_RADIO_DISABLED:
1136 device_printf(sc->sc_dev, "radio turned off\n");
1137 ieee80211_notify_radio(ic, 0);
1138 ipw_stop_locked(sc);
1139 /* XXX start polling thread to detect radio on */
1143 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1144 __func__, state, IEEESTATE(vap), sc->flags));
1151 * Set driver state for current channel.
1154 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1156 struct ifnet *ifp = sc->sc_ifp;
1157 struct ieee80211com *ic = ifp->if_l2com;
1159 ic->ic_curchan = chan;
1160 sc->sc_rxtap.wr_chan_freq = sc->sc_txtap.wt_chan_freq =
1161 htole16(ic->ic_curchan->ic_freq);
1162 sc->sc_rxtap.wr_chan_flags = sc->sc_txtap.wt_chan_flags =
1163 htole16(ic->ic_curchan->ic_flags);
1167 * XXX: Hack to set the current channel to the value advertised in beacons or
1168 * probe responses. Only used during AP detection.
1171 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1173 struct ifnet *ifp = sc->sc_ifp;
1174 struct ieee80211com *ic = ifp->if_l2com;
1175 struct ieee80211_channel *c;
1176 struct ieee80211_frame *wh;
1178 uint8_t *frm, *efrm;
1180 wh = mtod(m, struct ieee80211_frame *);
1182 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1185 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1187 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1188 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1191 /* XXX use ieee80211_parse_beacon */
1192 frm = (uint8_t *)(wh + 1);
1193 efrm = mtod(m, uint8_t *) + m->m_len;
1195 frm += 12; /* skip tstamp, bintval and capinfo fields */
1196 while (frm < efrm) {
1197 if (*frm == IEEE80211_ELEMID_DSPARMS)
1198 #if IEEE80211_CHAN_MAX < 255
1199 if (frm[2] <= IEEE80211_CHAN_MAX)
1202 DPRINTF(("Fixing channel to %d\n", frm[2]));
1203 c = ieee80211_find_channel(ic,
1204 ieee80211_ieee2mhz(frm[2], 0),
1207 c = &ic->ic_channels[0];
1208 ipw_setcurchan(sc, c);
1216 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1217 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1219 struct ifnet *ifp = sc->sc_ifp;
1220 struct ieee80211com *ic = ifp->if_l2com;
1221 struct mbuf *mnew, *m;
1222 struct ieee80211_node *ni;
1223 bus_addr_t physaddr;
1227 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1230 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1231 le32toh(status->len) > MCLBYTES)
1235 * Try to allocate a new mbuf for this ring element and load it before
1236 * processing the current mbuf. If the ring element cannot be loaded,
1237 * drop the received packet and reuse the old mbuf. In the unlikely
1238 * case that the old mbuf can't be reloaded either, explicitly panic.
1240 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
1246 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1247 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1249 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1250 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1254 /* try to reload the old mbuf */
1255 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1256 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1259 /* very unlikely that it will fail... */
1260 panic("%s: could not load old rx mbuf",
1261 device_get_name(sc->sc_dev));
1268 * New mbuf successfully loaded, update Rx ring and continue
1273 sbd->bd->physaddr = htole32(physaddr);
1276 m->m_pkthdr.rcvif = ifp;
1277 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1279 if (bpf_peers_present(ifp->if_bpf)) {
1280 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1283 tap->wr_antsignal = status->rssi + IPW_RSSI_TO_DBM;
1284 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
1285 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
1287 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m);
1290 if (sc->flags & IPW_FLAG_SCANNING)
1291 ipw_fix_channel(sc, m);
1294 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1296 (void) ieee80211_input(ni, m, status->rssi, -95, 0);
1297 ieee80211_free_node(ni);
1299 (void) ieee80211_input_all(ic, m, status->rssi, -95, 0);
1302 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1306 ipw_rx_intr(struct ipw_softc *sc)
1308 struct ipw_status *status;
1309 struct ipw_soft_bd *sbd;
1310 struct ipw_soft_buf *sbuf;
1313 if (!(sc->flags & IPW_FLAG_FW_INITED))
1316 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1318 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1320 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1321 status = &sc->status_list[i];
1322 sbd = &sc->srbd_list[i];
1325 switch (le16toh(status->code) & 0xf) {
1326 case IPW_STATUS_CODE_COMMAND:
1327 ipw_rx_cmd_intr(sc, sbuf);
1330 case IPW_STATUS_CODE_NEWSTATE:
1331 ipw_rx_newstate_intr(sc, sbuf);
1334 case IPW_STATUS_CODE_DATA_802_3:
1335 case IPW_STATUS_CODE_DATA_802_11:
1336 ipw_rx_data_intr(sc, status, sbd, sbuf);
1339 case IPW_STATUS_CODE_NOTIFICATION:
1340 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1341 le32toh(status->len), status->flags));
1342 /* XXX maybe drive state machine AUTH->ASSOC? */
1346 device_printf(sc->sc_dev, "unexpected status code %u\n",
1347 le16toh(status->code));
1350 /* firmware was killed, stop processing received frames */
1351 if (!(sc->flags & IPW_FLAG_FW_INITED))
1357 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1359 /* kick the firmware */
1360 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1361 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1365 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1367 struct ipw_soft_hdr *shdr;
1368 struct ipw_soft_buf *sbuf;
1370 switch (sbd->type) {
1371 case IPW_SBD_TYPE_COMMAND:
1372 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1373 BUS_DMASYNC_POSTWRITE);
1374 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1377 case IPW_SBD_TYPE_HEADER:
1379 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1380 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1381 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1384 case IPW_SBD_TYPE_DATA:
1386 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1387 BUS_DMASYNC_POSTWRITE);
1388 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1389 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1391 if (sbuf->m->m_flags & M_TXCB)
1392 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1394 ieee80211_free_node(sbuf->ni);
1396 sc->sc_tx_timer = 0;
1400 sbd->type = IPW_SBD_TYPE_NOASSOC;
1404 ipw_tx_intr(struct ipw_softc *sc)
1406 struct ifnet *ifp = sc->sc_ifp;
1407 struct ipw_soft_bd *sbd;
1410 if (!(sc->flags & IPW_FLAG_FW_INITED))
1413 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1415 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1416 sbd = &sc->stbd_list[i];
1418 if (sbd->type == IPW_SBD_TYPE_DATA)
1421 ipw_release_sbd(sc, sbd);
1425 /* remember what the firmware has processed */
1426 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1428 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1429 ipw_start_locked(ifp);
1435 struct ipw_softc *sc = arg;
1441 if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) {
1446 /* disable interrupts */
1447 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1449 /* acknowledge all interrupts */
1450 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1452 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1453 device_printf(sc->sc_dev, "firmware error\n");
1454 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1455 r = 0; /* don't process more interrupts */
1458 if (r & IPW_INTR_FW_INIT_DONE)
1461 if (r & IPW_INTR_RX_TRANSFER)
1464 if (r & IPW_INTR_TX_TRANSFER)
1467 /* re-enable interrupts */
1468 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1474 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1479 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1481 *(bus_addr_t *)arg = segs[0].ds_addr;
1485 ipw_cmdname(int cmd)
1487 #define N(a) (sizeof(a) / sizeof(a[0]))
1488 static const struct {
1492 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1493 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1494 { IPW_CMD_DISABLE, "DISABLE" },
1495 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1496 { IPW_CMD_ENABLE, "ENABLE" },
1497 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1498 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1499 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1500 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1501 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1502 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1503 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1504 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1505 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1506 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1507 { IPW_CMD_SET_MODE, "SET_MODE" },
1508 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1509 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1510 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1511 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1512 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1513 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1514 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1515 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1516 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1517 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1518 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1521 static char buf[12];
1524 for (i = 0; i < N(cmds); i++)
1525 if (cmds[i].cmd == cmd)
1526 return cmds[i].name;
1527 snprintf(buf, sizeof(buf), "%u", cmd);
1533 * Send a command to the firmware and wait for the acknowledgement.
1536 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1538 struct ipw_soft_bd *sbd;
1539 bus_addr_t physaddr;
1542 IPW_LOCK_ASSERT(sc);
1544 if (sc->flags & IPW_FLAG_BUSY) {
1545 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1546 __func__, ipw_cmdname(type));
1549 sc->flags |= IPW_FLAG_BUSY;
1551 sbd = &sc->stbd_list[sc->txcur];
1553 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1554 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1556 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1557 sc->flags &= ~IPW_FLAG_BUSY;
1561 sc->cmd.type = htole32(type);
1562 sc->cmd.subtype = 0;
1563 sc->cmd.len = htole32(len);
1565 memcpy(sc->cmd.data, data, len);
1567 sbd->type = IPW_SBD_TYPE_COMMAND;
1568 sbd->bd->physaddr = htole32(physaddr);
1569 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1571 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1572 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1574 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1575 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1578 if (ipw_debug >= 4) {
1579 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1581 /* Print the data buffer in the higher debug level */
1582 if (ipw_debug >= 9 && len > 0) {
1583 printf(" data: 0x");
1584 for (int i = 1; i <= len; i++)
1585 printf("%1D", (u_char *)data + len - i, "");
1593 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1594 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1596 /* wait at most one second for command to complete */
1597 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1599 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1600 __func__, ipw_cmdname(type), error);
1601 sc->flags &= ~IPW_FLAG_BUSY;
1608 ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni)
1610 struct ipw_softc *sc = ifp->if_softc;
1611 struct ieee80211com *ic = ifp->if_l2com;
1612 struct ieee80211_frame *wh;
1613 struct ipw_soft_bd *sbd;
1614 struct ipw_soft_hdr *shdr;
1615 struct ipw_soft_buf *sbuf;
1616 struct ieee80211_key *k;
1618 bus_dma_segment_t segs[IPW_MAX_NSEG];
1619 bus_addr_t physaddr;
1620 int nsegs, error, i;
1622 wh = mtod(m0, struct ieee80211_frame *);
1624 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1625 k = ieee80211_crypto_encap(ni, m0);
1630 /* packet header may have moved, reset our local pointer */
1631 wh = mtod(m0, struct ieee80211_frame *);
1634 if (bpf_peers_present(ifp->if_bpf)) {
1635 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1638 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1639 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1641 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1644 shdr = SLIST_FIRST(&sc->free_shdr);
1645 sbuf = SLIST_FIRST(&sc->free_sbuf);
1646 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1648 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1649 shdr->hdr.subtype = 0;
1650 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0;
1651 shdr->hdr.encrypt = 0;
1652 shdr->hdr.keyidx = 0;
1653 shdr->hdr.keysz = 0;
1654 shdr->hdr.fragmentsz = 0;
1655 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1656 if (ic->ic_opmode == IEEE80211_M_STA)
1657 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1659 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1661 /* trim IEEE802.11 header */
1662 m_adj(m0, sizeof (struct ieee80211_frame));
1664 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1666 if (error != 0 && error != EFBIG) {
1667 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1673 mnew = m_defrag(m0, M_DONTWAIT);
1675 device_printf(sc->sc_dev,
1676 "could not defragment mbuf\n");
1682 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1685 device_printf(sc->sc_dev,
1686 "could not map mbuf (error %d)\n", error);
1692 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1693 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1695 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1696 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1701 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1702 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1704 sbd = &sc->stbd_list[sc->txcur];
1705 sbd->type = IPW_SBD_TYPE_HEADER;
1707 sbd->bd->physaddr = htole32(physaddr);
1708 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1709 sbd->bd->nfrag = 1 + nsegs;
1710 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1711 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1713 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1714 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1715 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1719 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1724 for (i = 0; i < nsegs; i++) {
1725 sbd = &sc->stbd_list[sc->txcur];
1727 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1728 sbd->bd->len = htole32(segs[i].ds_len);
1730 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1731 if (i == nsegs - 1) {
1732 sbd->type = IPW_SBD_TYPE_DATA;
1734 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1736 sbd->type = IPW_SBD_TYPE_NOASSOC;
1737 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1740 DPRINTFN(5, ("sending fragment (%d)\n", i));
1743 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1746 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1747 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1748 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1751 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1757 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1758 const struct ieee80211_bpf_params *params)
1760 /* no support; just discard */
1762 ieee80211_free_node(ni);
1767 ipw_start(struct ifnet *ifp)
1769 struct ipw_softc *sc = ifp->if_softc;
1773 ipw_start_locked(ifp);
1778 ipw_start_locked(struct ifnet *ifp)
1780 struct ipw_softc *sc = ifp->if_softc;
1781 struct ieee80211_node *ni;
1784 IPW_LOCK_ASSERT(sc);
1787 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1790 if (sc->txfree < 1 + IPW_MAX_NSEG) {
1791 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1792 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1795 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1796 m = ieee80211_encap(ni, m);
1798 ieee80211_free_node(ni);
1801 if (ipw_tx_start(ifp, m, ni) != 0) {
1802 ieee80211_free_node(ni);
1806 /* start watchdog timer */
1807 sc->sc_tx_timer = 5;
1812 ipw_watchdog(void *arg)
1814 struct ipw_softc *sc = arg;
1815 struct ifnet *ifp = sc->sc_ifp;
1816 struct ieee80211com *ic = ifp->if_l2com;
1818 IPW_LOCK_ASSERT(sc);
1820 if (sc->sc_tx_timer > 0) {
1821 if (--sc->sc_tx_timer == 0) {
1822 if_printf(ifp, "device timeout\n");
1824 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1827 if (sc->sc_scan_timer > 0) {
1828 if (--sc->sc_scan_timer == 0) {
1829 DPRINTFN(3, ("Scan timeout\n"));
1831 if (sc->flags & IPW_FLAG_SCANNING) {
1832 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1833 sc->flags &= ~IPW_FLAG_SCANNING;
1837 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1838 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1842 ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1844 struct ipw_softc *sc = ifp->if_softc;
1845 struct ieee80211com *ic = ifp->if_l2com;
1846 struct ifreq *ifr = (struct ifreq *) data;
1847 int error = 0, startall = 0;
1853 if (ifp->if_flags & IFF_UP) {
1854 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1855 ipw_init_locked(sc);
1859 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1860 ipw_stop_locked(sc);
1865 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1868 error = ether_ioctl(ifp, cmd, data);
1873 ieee80211_start_all(ic);
1878 ipw_stop_master(struct ipw_softc *sc)
1883 /* disable interrupts */
1884 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1886 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1887 for (ntries = 0; ntries < 50; ntries++) {
1888 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1893 device_printf(sc->sc_dev, "timeout waiting for master\n");
1895 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1896 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1898 /* Clear all flags except the following */
1899 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1903 ipw_reset(struct ipw_softc *sc)
1908 ipw_stop_master(sc);
1910 /* move adapter to D0 state */
1911 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1912 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1914 /* wait for clock stabilization */
1915 for (ntries = 0; ntries < 1000; ntries++) {
1916 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1923 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1924 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1928 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1929 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1935 ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1937 int ms = hz < 1000 ? 1 : hz/10;
1940 for (i = 0; i < 100; i++) {
1941 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1943 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1944 if (error == 0 || error != EWOULDBLOCK)
1947 DPRINTF(("%s: timeout waiting for %s\n",
1948 __func__, waitfor ? "disable" : "enable"));
1953 ipw_enable(struct ipw_softc *sc)
1957 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1958 DPRINTF(("Enable adapter\n"));
1959 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1962 error = ipw_waitfordisable(sc, 0);
1965 sc->flags |= IPW_FLAG_ENABLED;
1971 ipw_disable(struct ipw_softc *sc)
1975 if (sc->flags & IPW_FLAG_ENABLED) {
1976 DPRINTF(("Disable adapter\n"));
1977 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1980 error = ipw_waitfordisable(sc, 1);
1983 sc->flags &= ~IPW_FLAG_ENABLED;
1989 * Upload the microcode to the device.
1992 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1996 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1997 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1999 MEM_WRITE_2(sc, 0x220000, 0x0703);
2000 MEM_WRITE_2(sc, 0x220000, 0x0707);
2002 MEM_WRITE_1(sc, 0x210014, 0x72);
2003 MEM_WRITE_1(sc, 0x210014, 0x72);
2005 MEM_WRITE_1(sc, 0x210000, 0x40);
2006 MEM_WRITE_1(sc, 0x210000, 0x00);
2007 MEM_WRITE_1(sc, 0x210000, 0x40);
2009 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
2011 MEM_WRITE_1(sc, 0x210000, 0x00);
2012 MEM_WRITE_1(sc, 0x210000, 0x00);
2013 MEM_WRITE_1(sc, 0x210000, 0x80);
2015 MEM_WRITE_2(sc, 0x220000, 0x0703);
2016 MEM_WRITE_2(sc, 0x220000, 0x0707);
2018 MEM_WRITE_1(sc, 0x210014, 0x72);
2019 MEM_WRITE_1(sc, 0x210014, 0x72);
2021 MEM_WRITE_1(sc, 0x210000, 0x00);
2022 MEM_WRITE_1(sc, 0x210000, 0x80);
2024 for (ntries = 0; ntries < 10; ntries++) {
2025 if (MEM_READ_1(sc, 0x210000) & 1)
2030 device_printf(sc->sc_dev,
2031 "timeout waiting for ucode to initialize\n");
2035 MEM_WRITE_4(sc, 0x3000e0, 0);
2040 /* set of macros to handle unaligned little endian data in firmware image */
2041 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2042 #define GETLE16(p) ((p)[0] | (p)[1] << 8)
2044 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
2046 const uint8_t *p, *end;
2054 dst = GETLE32(p); p += 4;
2055 len = GETLE16(p); p += 2;
2057 ipw_write_mem_1(sc, dst, p, len);
2061 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
2064 /* enable interrupts */
2065 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
2067 /* kick the firmware */
2068 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2070 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
2071 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
2073 /* wait at most one second for firmware initialization to complete */
2074 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
2075 device_printf(sc->sc_dev, "timeout waiting for firmware "
2076 "initialization to complete\n");
2080 tmp = CSR_READ_4(sc, IPW_CSR_IO);
2081 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2088 ipw_setwepkeys(struct ipw_softc *sc)
2090 struct ifnet *ifp = sc->sc_ifp;
2091 struct ieee80211com *ic = ifp->if_l2com;
2092 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2093 struct ipw_wep_key wepkey;
2094 struct ieee80211_key *wk;
2097 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2098 wk = &vap->iv_nw_keys[i];
2100 if (wk->wk_cipher == NULL ||
2101 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2105 wepkey.len = wk->wk_keylen;
2106 memset(wepkey.key, 0, sizeof wepkey.key);
2107 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2108 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2110 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2119 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2121 struct ipw_wpa_ie wpaie;
2123 memset(&wpaie, 0, sizeof(wpaie));
2124 wpaie.len = htole32(ielen);
2125 /* XXX verify length */
2126 memcpy(&wpaie.ie, ie, ielen);
2127 DPRINTF(("Setting WPA IE\n"));
2128 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2132 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2134 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2136 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2137 DPRINTF(("Setting mandatory BSSID to null\n"));
2138 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2140 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2141 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2142 bssid, IEEE80211_ADDR_LEN);
2147 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2151 * A bug in the firmware breaks the ``don't associate''
2152 * bit in the scan options command. To compensate for
2153 * this install a bogus ssid when no ssid is specified
2154 * so the firmware won't try to associate.
2156 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2157 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2158 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2159 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2160 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2161 "\x3c\x3d", IEEE80211_NWID_LEN);
2164 if (ipw_debug > 0) {
2165 printf("Setting ESSID to ");
2166 ieee80211_print_essid(ssid, ssidlen);
2170 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2175 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2177 struct ipw_scan_options opts;
2179 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2180 opts.channels = htole32(chanmask);
2181 opts.flags = htole32(flags);
2182 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2186 * Handler for sc_scan_task. This is a simple wrapper around ipw_scan().
2189 ipw_scan_task(void *context, int pending)
2191 struct ipw_softc *sc = context;
2200 ipw_scan(struct ipw_softc *sc)
2205 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2207 if (sc->flags & IPW_FLAG_SCANNING)
2209 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2211 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2212 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2217 * Setup null/bogus ssid so firmware doesn't use any previous
2218 * ssid to try and associate. This is because the ``don't
2219 * associate'' option bit is broken (sigh).
2221 error = ipw_setssid(sc, NULL, 0);
2226 * NB: the adapter may be disabled on association lost;
2227 * if so just re-enable it to kick off scanning.
2229 DPRINTF(("Starting scan\n"));
2230 sc->sc_scan_timer = 3;
2231 if (sc->flags & IPW_FLAG_ENABLED) {
2232 params = 0; /* XXX? */
2233 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2234 ¶ms, sizeof(params));
2236 error = ipw_enable(sc);
2239 DPRINTF(("Scan failed\n"));
2240 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2246 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2248 struct ifnet *ifp = sc->sc_ifp;
2249 struct ieee80211com *ic = ifp->if_l2com;
2253 data = htole32(ieee80211_chan2ieee(ic, chan));
2254 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2255 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2257 ipw_setcurchan(sc, chan);
2262 ipw_assoc_task(void *context, int pending)
2264 struct ieee80211vap *vap = context;
2265 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2266 struct ieee80211com *ic = ifp->if_l2com;
2267 struct ipw_softc *sc = ifp->if_softc;
2268 struct ieee80211_node *ni = vap->iv_bss;
2269 struct ipw_security security;
2275 error = ipw_disable(sc);
2279 memset(&security, 0, sizeof security);
2280 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2281 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2282 security.ciphers = htole32(IPW_CIPHER_NONE);
2283 DPRINTF(("Setting authmode to %u\n", security.authmode));
2284 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2289 data = htole32(vap->iv_rtsthreshold);
2290 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2291 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2295 data = htole32(vap->iv_fragthreshold);
2296 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2297 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2301 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2302 error = ipw_setwepkeys(sc);
2306 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2307 data = htole32(vap->iv_def_txkey);
2308 DPRINTF(("Setting wep tx key index to %u\n",
2310 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2317 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2318 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2319 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2323 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2327 error = ipw_setbssid(sc, ni->ni_bssid);
2331 if (vap->iv_appie_assocreq != NULL) {
2332 struct ieee80211_appie *ie = vap->iv_appie_assocreq;
2333 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2337 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2338 error = ipw_setchannel(sc, ni->ni_chan);
2343 /* lock scan to ap's channel and enable associate */
2344 error = ipw_setscanopts(sc,
2345 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2349 error = ipw_enable(sc); /* finally, enable adapter */
2351 sc->flags |= IPW_FLAG_ASSOCIATING;
2357 ipw_disassoc_task(void *context, int pending)
2359 struct ieee80211vap *vap = context;
2360 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2361 struct ieee80211_node *ni = vap->iv_bss;
2362 struct ipw_softc *sc = ifp->if_softc;
2366 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2368 * NB: don't try to do this if ipw_stop_master has
2369 * shutdown the firmware and disabled interrupts.
2371 if (sc->flags & IPW_FLAG_FW_INITED) {
2372 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2374 * NB: firmware currently ignores bssid parameter, but
2375 * supply it in case this changes (follow linux driver).
2377 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2378 ni->ni_bssid, IEEE80211_ADDR_LEN);
2384 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2385 * It is called on firmware panics or on watchdog timeouts.
2388 ipw_init_task(void *context, int pending)
2394 ipw_init(void *priv)
2396 struct ipw_softc *sc = priv;
2397 struct ifnet *ifp = sc->sc_ifp;
2398 struct ieee80211com *ic = ifp->if_l2com;
2402 ipw_init_locked(sc);
2405 ieee80211_start_all(ic);
2409 ipw_init_locked(struct ipw_softc *sc)
2411 struct ifnet *ifp = sc->sc_ifp;
2412 struct ieee80211com *ic = ifp->if_l2com;
2413 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2414 const struct firmware *fp;
2415 const struct ipw_firmware_hdr *hdr;
2418 IPW_LOCK_ASSERT(sc);
2420 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2421 ieee80211_state_name[vap->iv_state], sc->flags));
2424 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2425 * when loading the firmware and we don't want to be called during this
2428 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2430 sc->flags |= IPW_FLAG_INIT_LOCKED;
2432 ipw_stop_locked(sc);
2434 if (ipw_reset(sc) != 0) {
2435 device_printf(sc->sc_dev, "could not reset adapter\n");
2439 if (sc->sc_firmware == NULL) {
2440 device_printf(sc->sc_dev, "no firmware\n");
2443 /* NB: consistency already checked on load */
2444 fp = sc->sc_firmware;
2445 hdr = (const struct ipw_firmware_hdr *)fp->data;
2447 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2448 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2449 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2450 device_printf(sc->sc_dev, "could not load microcode\n");
2454 ipw_stop_master(sc);
2457 * Setup tx, rx and status rings.
2459 sc->txold = IPW_NTBD - 1;
2461 sc->txfree = IPW_NTBD - 2;
2462 sc->rxcur = IPW_NRBD - 1;
2464 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2465 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2466 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2467 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2469 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2470 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2471 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2472 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2474 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2476 fw = (const char *)fp->data + sizeof *hdr;
2477 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2478 device_printf(sc->sc_dev, "could not load firmware\n");
2482 sc->flags |= IPW_FLAG_FW_INITED;
2484 /* retrieve information tables base addresses */
2485 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2486 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2488 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2490 if (ipw_config(sc) != 0) {
2491 device_printf(sc->sc_dev, "device configuration failed\n");
2495 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2496 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2497 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2499 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2503 ipw_stop_locked(sc);
2504 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2508 ipw_config(struct ipw_softc *sc)
2510 struct ifnet *ifp = sc->sc_ifp;
2511 struct ieee80211com *ic = ifp->if_l2com;
2512 struct ipw_configuration config;
2516 error = ipw_disable(sc);
2520 switch (ic->ic_opmode) {
2521 case IEEE80211_M_STA:
2522 case IEEE80211_M_HOSTAP:
2523 case IEEE80211_M_WDS: /* XXX */
2524 data = htole32(IPW_MODE_BSS);
2526 case IEEE80211_M_IBSS:
2527 case IEEE80211_M_AHDEMO:
2528 data = htole32(IPW_MODE_IBSS);
2530 case IEEE80211_M_MONITOR:
2531 data = htole32(IPW_MODE_MONITOR);
2534 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2535 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2539 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2540 ic->ic_opmode == IEEE80211_M_MONITOR) {
2541 error = ipw_setchannel(sc, ic->ic_curchan);
2546 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2547 return ipw_enable(sc);
2549 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2550 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2551 if (ic->ic_opmode == IEEE80211_M_IBSS)
2552 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2553 if (ifp->if_flags & IFF_PROMISC)
2554 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2555 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2556 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2557 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2558 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2562 data = htole32(0x3); /* 1, 2 */
2563 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2564 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2568 /* NB: use the same rate set */
2569 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2570 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2574 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2575 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2576 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2580 data = htole32(IPW_POWER_MODE_CAM);
2581 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2582 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2586 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2587 data = htole32(32); /* default value */
2588 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2589 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2599 ipw_stop(void *priv)
2601 struct ipw_softc *sc = priv;
2605 ipw_stop_locked(sc);
2610 ipw_stop_locked(struct ipw_softc *sc)
2612 struct ifnet *ifp = sc->sc_ifp;
2615 IPW_LOCK_ASSERT(sc);
2617 callout_stop(&sc->sc_wdtimer);
2618 ipw_stop_master(sc);
2620 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2623 * Release tx buffers.
2625 for (i = 0; i < IPW_NTBD; i++)
2626 ipw_release_sbd(sc, &sc->stbd_list[i]);
2628 sc->sc_tx_timer = 0;
2629 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2633 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2635 struct ipw_softc *sc = arg1;
2636 uint32_t i, size, buf[256];
2638 memset(buf, 0, sizeof buf);
2640 if (!(sc->flags & IPW_FLAG_FW_INITED))
2641 return SYSCTL_OUT(req, buf, sizeof buf);
2643 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2645 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2646 for (i = 1; i < size; i++)
2647 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2649 return SYSCTL_OUT(req, buf, size);
2653 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2655 struct ipw_softc *sc = arg1;
2658 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2659 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2661 return SYSCTL_OUT(req, &val, sizeof val);
2665 ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2667 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2671 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2673 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2678 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2680 uint32_t addr, info;
2681 uint16_t count, size;
2684 /* addr[4] + count[2] + size[2] */
2685 addr = MEM_READ_4(sc, sc->table2_base + off);
2686 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2689 size = info & 0xffff;
2690 total = count * size;
2698 ipw_read_mem_1(sc, addr, buf, total);
2704 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2707 for (; count > 0; offset++, datap++, count--) {
2708 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2709 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2715 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2718 for (; count > 0; offset++, datap++, count--) {
2719 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2720 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2725 ipw_scan_start(struct ieee80211com *ic)
2727 struct ifnet *ifp = ic->ic_ifp;
2728 struct ipw_softc *sc = ifp->if_softc;
2732 if (!(sc->flags & IPW_FLAG_SCANNING))
2733 taskqueue_enqueue(taskqueue_swi, &sc->sc_scan_task);
2738 ipw_set_channel(struct ieee80211com *ic)
2740 struct ifnet *ifp = ic->ic_ifp;
2741 struct ipw_softc *sc = ifp->if_softc;
2745 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2747 ipw_setchannel(sc, ic->ic_curchan);
2754 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2756 /* NB: all channels are scanned at once */
2760 ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2762 /* NB: don't try to abort scan; wait for firmware to finish */
2766 ipw_scan_end(struct ieee80211com *ic)
2768 struct ifnet *ifp = ic->ic_ifp;
2769 struct ipw_softc *sc = ifp->if_softc;
2773 sc->flags &= ~IPW_FLAG_SCANNING;