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_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *);
122 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *,
123 struct ipw_soft_bd *, struct ipw_soft_buf *);
124 static void ipw_rx_intr(struct ipw_softc *);
125 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *);
126 static void ipw_tx_intr(struct ipw_softc *);
127 static void ipw_intr(void *);
128 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int);
129 static const char * ipw_cmdname(int);
130 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t);
131 static int ipw_tx_start(struct ifnet *, struct mbuf *,
132 struct ieee80211_node *);
133 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *,
134 const struct ieee80211_bpf_params *);
135 static void ipw_start(struct ifnet *);
136 static void ipw_start_locked(struct ifnet *);
137 static void ipw_watchdog(void *);
138 static int ipw_ioctl(struct ifnet *, u_long, caddr_t);
139 static void ipw_stop_master(struct ipw_softc *);
140 static int ipw_enable(struct ipw_softc *);
141 static int ipw_disable(struct ipw_softc *);
142 static int ipw_reset(struct ipw_softc *);
143 static int ipw_load_ucode(struct ipw_softc *, const char *, int);
144 static int ipw_load_firmware(struct ipw_softc *, const char *, int);
145 static int ipw_config(struct ipw_softc *);
146 static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *);
147 static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *);
148 static void ipw_init_task(void *, int);
149 static void ipw_init(void *);
150 static void ipw_init_locked(struct ipw_softc *);
151 static void ipw_stop(void *);
152 static void ipw_stop_locked(struct ipw_softc *);
153 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS);
154 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS);
155 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t);
156 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t);
158 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *,
160 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *,
163 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t,
164 const uint8_t *, bus_size_t);
165 static int ipw_scan(struct ipw_softc *);
166 static void ipw_scan_start(struct ieee80211com *);
167 static void ipw_scan_end(struct ieee80211com *);
168 static void ipw_set_channel(struct ieee80211com *);
169 static void ipw_scan_curchan(struct ieee80211_scan_state *,
170 unsigned long maxdwell);
171 static void ipw_scan_mindwell(struct ieee80211_scan_state *);
173 static int ipw_probe(device_t);
174 static int ipw_attach(device_t);
175 static int ipw_detach(device_t);
176 static int ipw_shutdown(device_t);
177 static int ipw_suspend(device_t);
178 static int ipw_resume(device_t);
180 static device_method_t ipw_methods[] = {
181 /* Device interface */
182 DEVMETHOD(device_probe, ipw_probe),
183 DEVMETHOD(device_attach, ipw_attach),
184 DEVMETHOD(device_detach, ipw_detach),
185 DEVMETHOD(device_shutdown, ipw_shutdown),
186 DEVMETHOD(device_suspend, ipw_suspend),
187 DEVMETHOD(device_resume, ipw_resume),
192 static driver_t ipw_driver = {
195 sizeof (struct ipw_softc)
198 static devclass_t ipw_devclass;
200 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, 0, 0);
203 ipw_probe(device_t dev)
205 const struct ipw_ident *ident;
207 for (ident = ipw_ident_table; ident->name != NULL; ident++) {
208 if (pci_get_vendor(dev) == ident->vendor &&
209 pci_get_device(dev) == ident->device) {
210 device_set_desc(dev, ident->name);
217 /* Base Address Register */
218 #define IPW_PCI_BAR0 0x10
221 ipw_attach(device_t dev)
223 struct ipw_softc *sc = device_get_softc(dev);
225 struct ieee80211com *ic;
226 struct ieee80211_channel *c;
229 uint8_t macaddr[IEEE80211_ADDR_LEN];
233 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
234 MTX_DEF | MTX_RECURSE);
236 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc);
237 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0);
239 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
240 device_printf(dev, "chip is in D%d power mode "
241 "-- setting to D0\n", pci_get_powerstate(dev));
242 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
245 pci_write_config(dev, 0x41, 0, 1);
247 /* enable bus-mastering */
248 pci_enable_busmaster(dev);
250 sc->mem_rid = IPW_PCI_BAR0;
251 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
253 if (sc->mem == NULL) {
254 device_printf(dev, "could not allocate memory resource\n");
258 sc->sc_st = rman_get_bustag(sc->mem);
259 sc->sc_sh = rman_get_bushandle(sc->mem);
262 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
263 RF_ACTIVE | RF_SHAREABLE);
264 if (sc->irq == NULL) {
265 device_printf(dev, "could not allocate interrupt resource\n");
269 if (ipw_reset(sc) != 0) {
270 device_printf(dev, "could not reset adapter\n");
274 if (ipw_dma_alloc(sc) != 0) {
275 device_printf(dev, "could not allocate DMA resources\n");
279 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
281 device_printf(dev, "can not if_alloc()\n");
287 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
288 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
289 ifp->if_init = ipw_init;
290 ifp->if_ioctl = ipw_ioctl;
291 ifp->if_start = ipw_start;
292 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
293 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
294 IFQ_SET_READY(&ifp->if_snd);
297 ic->ic_opmode = IEEE80211_M_STA;
298 ic->ic_phytype = IEEE80211_T_DS;
300 /* set device capabilities */
302 IEEE80211_C_STA /* station mode supported */
303 | IEEE80211_C_IBSS /* IBSS mode supported */
304 | IEEE80211_C_MONITOR /* monitor mode supported */
305 | IEEE80211_C_PMGT /* power save supported */
306 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
307 | IEEE80211_C_WPA /* 802.11i supported */
310 /* read MAC address from EEPROM */
311 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0);
312 macaddr[0] = val >> 8;
313 macaddr[1] = val & 0xff;
314 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1);
315 macaddr[2] = val >> 8;
316 macaddr[3] = val & 0xff;
317 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2);
318 macaddr[4] = val >> 8;
319 macaddr[5] = val & 0xff;
321 /* set supported .11b channels (read from EEPROM) */
322 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0)
323 val = 0x7ff; /* default to channels 1-11 */
325 for (i = 1; i < 16; i++) {
326 if (val & (1 << i)) {
327 c = &ic->ic_channels[ic->ic_nchans++];
328 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
329 c->ic_flags = IEEE80211_CHAN_B;
334 /* check support for radio transmitter switch in EEPROM */
335 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8))
336 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH;
338 ieee80211_ifattach(ic, macaddr);
339 ic->ic_scan_start = ipw_scan_start;
340 ic->ic_scan_end = ipw_scan_end;
341 ic->ic_set_channel = ipw_set_channel;
342 ic->ic_scan_curchan = ipw_scan_curchan;
343 ic->ic_scan_mindwell = ipw_scan_mindwell;
344 ic->ic_raw_xmit = ipw_raw_xmit;
346 ic->ic_vap_create = ipw_vap_create;
347 ic->ic_vap_delete = ipw_vap_delete;
349 ieee80211_radiotap_attach(ic,
350 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
351 IPW_TX_RADIOTAP_PRESENT,
352 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
353 IPW_RX_RADIOTAP_PRESENT);
356 * Add a few sysctl knobs.
358 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
359 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio",
360 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I",
361 "radio transmitter switch state (0=off, 1=on)");
363 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
364 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats",
365 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S",
369 * Hook our interrupt after all initialization is complete.
371 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
372 NULL, ipw_intr, sc, &sc->sc_ih);
374 device_printf(dev, "could not set up interrupt\n");
379 ieee80211_announce(ic);
387 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
389 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
391 mtx_destroy(&sc->sc_mtx);
396 ipw_detach(device_t dev)
398 struct ipw_softc *sc = device_get_softc(dev);
399 struct ifnet *ifp = sc->sc_ifp;
400 struct ieee80211com *ic = ifp->if_l2com;
402 ieee80211_draintask(ic, &sc->sc_init_task);
405 ieee80211_ifdetach(ic);
407 callout_drain(&sc->sc_wdtimer);
411 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
412 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
414 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
418 if (sc->sc_firmware != NULL) {
419 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
420 sc->sc_firmware = NULL;
423 mtx_destroy(&sc->sc_mtx);
428 static struct ieee80211vap *
429 ipw_vap_create(struct ieee80211com *ic,
430 const char name[IFNAMSIZ], int unit, int opmode, int flags,
431 const uint8_t bssid[IEEE80211_ADDR_LEN],
432 const uint8_t mac[IEEE80211_ADDR_LEN])
434 struct ifnet *ifp = ic->ic_ifp;
435 struct ipw_softc *sc = ifp->if_softc;
437 struct ieee80211vap *vap;
438 const struct firmware *fp;
439 const struct ipw_firmware_hdr *hdr;
440 const char *imagename;
442 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
446 case IEEE80211_M_STA:
447 imagename = "ipw_bss";
449 case IEEE80211_M_IBSS:
450 imagename = "ipw_ibss";
452 case IEEE80211_M_MONITOR:
453 imagename = "ipw_monitor";
460 * Load firmware image using the firmware(9) subsystem. Doing
461 * this unlocked is ok since we're single-threaded by the
464 if (sc->sc_firmware == NULL ||
465 strcmp(sc->sc_firmware->name, imagename) != 0) {
466 if (sc->sc_firmware != NULL)
467 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
468 sc->sc_firmware = firmware_get(imagename);
470 if (sc->sc_firmware == NULL) {
471 device_printf(sc->sc_dev,
472 "could not load firmware image '%s'\n", imagename);
475 fp = sc->sc_firmware;
476 if (fp->datasize < sizeof *hdr) {
477 device_printf(sc->sc_dev,
478 "firmware image too short %zu\n", fp->datasize);
479 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
480 sc->sc_firmware = NULL;
483 hdr = (const struct ipw_firmware_hdr *)fp->data;
484 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) +
485 le32toh(hdr->ucodesz)) {
486 device_printf(sc->sc_dev,
487 "firmware image too short %zu\n", fp->datasize);
488 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD);
489 sc->sc_firmware = NULL;
493 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap),
494 M_80211_VAP, M_NOWAIT | M_ZERO);
499 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
500 /* override with driver methods */
501 ivp->newstate = vap->iv_newstate;
502 vap->iv_newstate = ipw_newstate;
505 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status);
506 ic->ic_opmode = opmode;
511 ipw_vap_delete(struct ieee80211vap *vap)
513 struct ipw_vap *ivp = IPW_VAP(vap);
515 ieee80211_vap_detach(vap);
516 free(ivp, M_80211_VAP);
520 ipw_dma_alloc(struct ipw_softc *sc)
522 struct ipw_soft_bd *sbd;
523 struct ipw_soft_hdr *shdr;
524 struct ipw_soft_buf *sbuf;
529 * Allocate and map tx ring.
531 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
532 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
533 NULL, &sc->tbd_dmat);
535 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n");
539 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list,
540 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map);
542 device_printf(sc->sc_dev,
543 "could not allocate tx ring DMA memory\n");
547 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list,
548 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0);
550 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n");
555 * Allocate and map rx ring.
557 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
558 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
559 NULL, &sc->rbd_dmat);
561 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n");
565 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list,
566 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map);
568 device_printf(sc->sc_dev,
569 "could not allocate rx ring DMA memory\n");
573 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list,
574 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0);
576 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n");
581 * Allocate and map status ring.
583 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
584 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
585 NULL, NULL, &sc->status_dmat);
587 device_printf(sc->sc_dev,
588 "could not create status ring DMA tag\n");
592 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list,
593 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map);
595 device_printf(sc->sc_dev,
596 "could not allocate status ring DMA memory\n");
600 error = bus_dmamap_load(sc->status_dmat, sc->status_map,
601 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys,
604 device_printf(sc->sc_dev,
605 "could not map status ring DMA memory\n");
610 * Allocate command DMA map.
612 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
613 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
614 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
616 device_printf(sc->sc_dev, "could not create command DMA tag\n");
620 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map);
622 device_printf(sc->sc_dev,
623 "could not create command DMA map\n");
628 * Allocate headers DMA maps.
630 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
631 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
632 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
634 device_printf(sc->sc_dev, "could not create header DMA tag\n");
638 SLIST_INIT(&sc->free_shdr);
639 for (i = 0; i < IPW_NDATA; i++) {
640 shdr = &sc->shdr_list[i];
641 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map);
643 device_printf(sc->sc_dev,
644 "could not create header DMA map\n");
647 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
651 * Allocate tx buffers DMA maps.
653 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
654 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
655 NULL, NULL, &sc->txbuf_dmat);
657 device_printf(sc->sc_dev, "could not create tx DMA tag\n");
661 SLIST_INIT(&sc->free_sbuf);
662 for (i = 0; i < IPW_NDATA; i++) {
663 sbuf = &sc->tx_sbuf_list[i];
664 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map);
666 device_printf(sc->sc_dev,
667 "could not create tx DMA map\n");
670 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
674 * Initialize tx ring.
676 for (i = 0; i < IPW_NTBD; i++) {
677 sbd = &sc->stbd_list[i];
678 sbd->bd = &sc->tbd_list[i];
679 sbd->type = IPW_SBD_TYPE_NOASSOC;
683 * Pre-allocate rx buffers and DMA maps.
685 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
686 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
687 NULL, &sc->rxbuf_dmat);
689 device_printf(sc->sc_dev, "could not create rx DMA tag\n");
693 for (i = 0; i < IPW_NRBD; i++) {
694 sbd = &sc->srbd_list[i];
695 sbuf = &sc->rx_sbuf_list[i];
696 sbd->bd = &sc->rbd_list[i];
698 sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
699 if (sbuf->m == NULL) {
700 device_printf(sc->sc_dev,
701 "could not allocate rx mbuf\n");
706 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map);
708 device_printf(sc->sc_dev,
709 "could not create rx DMA map\n");
713 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
714 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
717 device_printf(sc->sc_dev,
718 "could not map rx DMA memory\n");
722 sbd->type = IPW_SBD_TYPE_DATA;
724 sbd->bd->physaddr = htole32(physaddr);
725 sbd->bd->len = htole32(MCLBYTES);
728 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
732 fail: ipw_release(sc);
737 ipw_release(struct ipw_softc *sc)
739 struct ipw_soft_buf *sbuf;
742 if (sc->tbd_dmat != NULL) {
743 if (sc->stbd_list != NULL) {
744 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);
745 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list,
748 bus_dma_tag_destroy(sc->tbd_dmat);
751 if (sc->rbd_dmat != NULL) {
752 if (sc->rbd_list != NULL) {
753 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map);
754 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list,
757 bus_dma_tag_destroy(sc->rbd_dmat);
760 if (sc->status_dmat != NULL) {
761 if (sc->status_list != NULL) {
762 bus_dmamap_unload(sc->status_dmat, sc->status_map);
763 bus_dmamem_free(sc->status_dmat, sc->status_list,
766 bus_dma_tag_destroy(sc->status_dmat);
769 for (i = 0; i < IPW_NTBD; i++)
770 ipw_release_sbd(sc, &sc->stbd_list[i]);
772 if (sc->cmd_dmat != NULL) {
773 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map);
774 bus_dma_tag_destroy(sc->cmd_dmat);
777 if (sc->hdr_dmat != NULL) {
778 for (i = 0; i < IPW_NDATA; i++)
779 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map);
780 bus_dma_tag_destroy(sc->hdr_dmat);
783 if (sc->txbuf_dmat != NULL) {
784 for (i = 0; i < IPW_NDATA; i++) {
785 bus_dmamap_destroy(sc->txbuf_dmat,
786 sc->tx_sbuf_list[i].map);
788 bus_dma_tag_destroy(sc->txbuf_dmat);
791 if (sc->rxbuf_dmat != NULL) {
792 for (i = 0; i < IPW_NRBD; i++) {
793 sbuf = &sc->rx_sbuf_list[i];
794 if (sbuf->m != NULL) {
795 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map,
796 BUS_DMASYNC_POSTREAD);
797 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
800 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map);
802 bus_dma_tag_destroy(sc->rxbuf_dmat);
807 ipw_shutdown(device_t dev)
809 struct ipw_softc *sc = device_get_softc(dev);
817 ipw_suspend(device_t dev)
819 struct ipw_softc *sc = device_get_softc(dev);
827 ipw_resume(device_t dev)
829 struct ipw_softc *sc = device_get_softc(dev);
830 struct ifnet *ifp = sc->sc_ifp;
832 pci_write_config(dev, 0x41, 0, 1);
834 if (ifp->if_flags & IFF_UP)
841 ipw_cvtrate(int ipwrate)
844 case IPW_RATE_DS1: return 2;
845 case IPW_RATE_DS2: return 4;
846 case IPW_RATE_DS5: return 11;
847 case IPW_RATE_DS11: return 22;
853 * The firmware automatically adapts the transmit speed. We report its current
857 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr)
859 struct ieee80211vap *vap = ifp->if_softc;
860 struct ieee80211com *ic = vap->iv_ic;
861 struct ipw_softc *sc = ic->ic_ifp->if_softc;
863 /* read current transmission rate from adapter */
864 vap->iv_bss->ni_txrate = ipw_cvtrate(
865 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf);
866 ieee80211_media_status(ifp, imr);
870 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
872 struct ipw_vap *ivp = IPW_VAP(vap);
873 struct ieee80211com *ic = vap->iv_ic;
874 struct ifnet *ifp = ic->ic_ifp;
875 struct ipw_softc *sc = ifp->if_softc;
876 enum ieee80211_state ostate;
878 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
879 ieee80211_state_name[vap->iv_state],
880 ieee80211_state_name[nstate], sc->flags));
882 ostate = vap->iv_state;
883 IEEE80211_UNLOCK(ic);
886 case IEEE80211_S_RUN:
887 if (ic->ic_opmode == IEEE80211_M_IBSS) {
889 * XXX when joining an ibss network we are called
890 * with a SCAN -> RUN transition on scan complete.
891 * Use that to call ipw_assoc. On completing the
892 * join we are then called again with an AUTH -> RUN
893 * transition and we want to do nothing. This is
894 * all totally bogus and needs to be redone.
896 if (ostate == IEEE80211_S_SCAN)
901 case IEEE80211_S_INIT:
902 if (sc->flags & IPW_FLAG_ASSOCIATED)
903 ipw_disassoc(ic, vap);
906 case IEEE80211_S_AUTH:
908 * Move to ASSOC state after the ipw_assoc() call. Firmware
909 * takes care of authentication, after the call we'll receive
910 * only an assoc response which would otherwise be discared
911 * if we are still in AUTH state.
913 nstate = IEEE80211_S_ASSOC;
917 case IEEE80211_S_ASSOC:
919 * If we are not transitioning from AUTH then resend the
920 * association request.
922 if (ostate != IEEE80211_S_AUTH)
930 return ivp->newstate(vap, nstate, arg);
934 * Read 16 bits at address 'addr' from the serial EEPROM.
937 ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr)
943 /* clock C once before the first command */
944 IPW_EEPROM_CTL(sc, 0);
945 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
946 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
947 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
949 /* write start bit (1) */
950 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
951 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
953 /* write READ opcode (10) */
954 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D);
955 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C);
956 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
957 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
959 /* write address A7-A0 */
960 for (n = 7; n >= 0; n--) {
961 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
962 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D));
963 IPW_EEPROM_CTL(sc, IPW_EEPROM_S |
964 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C);
967 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
969 /* read data Q15-Q0 */
971 for (n = 15; n >= 0; n--) {
972 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C);
973 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
974 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL);
975 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n;
978 IPW_EEPROM_CTL(sc, 0);
980 /* clear Chip Select and clock C */
981 IPW_EEPROM_CTL(sc, IPW_EEPROM_S);
982 IPW_EEPROM_CTL(sc, 0);
983 IPW_EEPROM_CTL(sc, IPW_EEPROM_C);
989 ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
993 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
995 cmd = mtod(sbuf->m, struct ipw_cmd *);
997 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n",
998 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type),
999 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len),
1000 le32toh(cmd->status)));
1002 sc->flags &= ~IPW_FLAG_BUSY;
1007 ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf)
1009 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state]
1010 struct ifnet *ifp = sc->sc_ifp;
1011 struct ieee80211com *ic = ifp->if_l2com;
1012 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1015 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1017 state = le32toh(*mtod(sbuf->m, uint32_t *));
1020 case IPW_STATE_ASSOCIATED:
1021 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n",
1022 IEEESTATE(vap), sc->flags));
1023 /* XXX suppress state change in case the fw auto-associates */
1024 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) {
1025 DPRINTF(("Unexpected association (%s, flags 0x%x)\n",
1026 IEEESTATE(vap), sc->flags));
1029 sc->flags &= ~IPW_FLAG_ASSOCIATING;
1030 sc->flags |= IPW_FLAG_ASSOCIATED;
1033 case IPW_STATE_SCANNING:
1034 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n",
1035 IEEESTATE(vap), sc->flags));
1037 * NB: Check driver state for association on assoc
1038 * loss as the firmware will immediately start to
1039 * scan and we would treat it as a beacon miss if
1040 * we checked the 802.11 layer state.
1042 if (sc->flags & IPW_FLAG_ASSOCIATED) {
1044 /* XXX probably need to issue disassoc to fw */
1045 ieee80211_beacon_miss(ic);
1050 case IPW_STATE_SCAN_COMPLETE:
1052 * XXX For some reason scan requests generate scan
1053 * started + scan done events before any traffic is
1054 * received (e.g. probe response frames). We work
1055 * around this by marking the HACK flag and skipping
1056 * the first scan complete event.
1058 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n",
1059 IEEESTATE(vap), sc->flags));
1060 if (sc->flags & IPW_FLAG_HACK) {
1061 sc->flags &= ~IPW_FLAG_HACK;
1064 if (sc->flags & IPW_FLAG_SCANNING) {
1066 ieee80211_scan_done(vap);
1068 sc->flags &= ~IPW_FLAG_SCANNING;
1069 sc->sc_scan_timer = 0;
1073 case IPW_STATE_ASSOCIATION_LOST:
1074 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n",
1075 IEEESTATE(vap), sc->flags));
1076 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1077 if (vap->iv_state == IEEE80211_S_RUN) {
1079 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1);
1084 case IPW_STATE_DISABLED:
1085 /* XXX? is this right? */
1086 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING |
1087 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED);
1088 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n",
1089 IEEESTATE(vap), sc->flags));
1092 case IPW_STATE_RADIO_DISABLED:
1093 device_printf(sc->sc_dev, "radio turned off\n");
1094 ieee80211_notify_radio(ic, 0);
1095 ipw_stop_locked(sc);
1096 /* XXX start polling thread to detect radio on */
1100 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n",
1101 __func__, state, IEEESTATE(vap), sc->flags));
1108 * Set driver state for current channel.
1111 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan)
1113 struct ifnet *ifp = sc->sc_ifp;
1114 struct ieee80211com *ic = ifp->if_l2com;
1116 ic->ic_curchan = chan;
1117 ieee80211_radiotap_chan_change(ic);
1121 * XXX: Hack to set the current channel to the value advertised in beacons or
1122 * probe responses. Only used during AP detection.
1125 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m)
1127 struct ifnet *ifp = sc->sc_ifp;
1128 struct ieee80211com *ic = ifp->if_l2com;
1129 struct ieee80211_channel *c;
1130 struct ieee80211_frame *wh;
1132 uint8_t *frm, *efrm;
1134 wh = mtod(m, struct ieee80211_frame *);
1136 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
1139 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1141 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON &&
1142 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1145 /* XXX use ieee80211_parse_beacon */
1146 frm = (uint8_t *)(wh + 1);
1147 efrm = mtod(m, uint8_t *) + m->m_len;
1149 frm += 12; /* skip tstamp, bintval and capinfo fields */
1150 while (frm < efrm) {
1151 if (*frm == IEEE80211_ELEMID_DSPARMS)
1152 #if IEEE80211_CHAN_MAX < 255
1153 if (frm[2] <= IEEE80211_CHAN_MAX)
1156 DPRINTF(("Fixing channel to %d\n", frm[2]));
1157 c = ieee80211_find_channel(ic,
1158 ieee80211_ieee2mhz(frm[2], 0),
1161 c = &ic->ic_channels[0];
1162 ipw_setcurchan(sc, c);
1170 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status,
1171 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf)
1173 struct ifnet *ifp = sc->sc_ifp;
1174 struct ieee80211com *ic = ifp->if_l2com;
1175 struct mbuf *mnew, *m;
1176 struct ieee80211_node *ni;
1177 bus_addr_t physaddr;
1181 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len),
1184 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) ||
1185 le32toh(status->len) > MCLBYTES)
1189 * Try to allocate a new mbuf for this ring element and load it before
1190 * processing the current mbuf. If the ring element cannot be loaded,
1191 * drop the received packet and reuse the old mbuf. In the unlikely
1192 * case that the old mbuf can't be reloaded either, explicitly panic.
1194 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
1200 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD);
1201 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map);
1203 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *),
1204 MCLBYTES, ipw_dma_map_addr, &physaddr, 0);
1208 /* try to reload the old mbuf */
1209 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map,
1210 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr,
1213 /* very unlikely that it will fail... */
1214 panic("%s: could not load old rx mbuf",
1215 device_get_name(sc->sc_dev));
1222 * New mbuf successfully loaded, update Rx ring and continue
1227 sbd->bd->physaddr = htole32(physaddr);
1230 m->m_pkthdr.rcvif = ifp;
1231 m->m_pkthdr.len = m->m_len = le32toh(status->len);
1233 rssi = status->rssi + IPW_RSSI_TO_DBM;
1235 if (ieee80211_radiotap_active(ic)) {
1236 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap;
1239 tap->wr_antsignal = rssi;
1240 tap->wr_antnoise = nf;
1243 if (sc->flags & IPW_FLAG_SCANNING)
1244 ipw_fix_channel(sc, m);
1247 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1249 (void) ieee80211_input(ni, m, rssi - nf, nf);
1250 ieee80211_free_node(ni);
1252 (void) ieee80211_input_all(ic, m, rssi - nf, nf);
1255 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1259 ipw_rx_intr(struct ipw_softc *sc)
1261 struct ipw_status *status;
1262 struct ipw_soft_bd *sbd;
1263 struct ipw_soft_buf *sbuf;
1266 if (!(sc->flags & IPW_FLAG_FW_INITED))
1269 r = CSR_READ_4(sc, IPW_CSR_RX_READ);
1271 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD);
1273 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) {
1274 status = &sc->status_list[i];
1275 sbd = &sc->srbd_list[i];
1278 switch (le16toh(status->code) & 0xf) {
1279 case IPW_STATUS_CODE_COMMAND:
1280 ipw_rx_cmd_intr(sc, sbuf);
1283 case IPW_STATUS_CODE_NEWSTATE:
1284 ipw_rx_newstate_intr(sc, sbuf);
1287 case IPW_STATUS_CODE_DATA_802_3:
1288 case IPW_STATUS_CODE_DATA_802_11:
1289 ipw_rx_data_intr(sc, status, sbd, sbuf);
1292 case IPW_STATUS_CODE_NOTIFICATION:
1293 DPRINTFN(2, ("notification status, len %u flags 0x%x\n",
1294 le32toh(status->len), status->flags));
1295 /* XXX maybe drive state machine AUTH->ASSOC? */
1299 device_printf(sc->sc_dev, "unexpected status code %u\n",
1300 le16toh(status->code));
1303 /* firmware was killed, stop processing received frames */
1304 if (!(sc->flags & IPW_FLAG_FW_INITED))
1310 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE);
1312 /* kick the firmware */
1313 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1;
1314 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
1318 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd)
1320 struct ipw_soft_hdr *shdr;
1321 struct ipw_soft_buf *sbuf;
1323 switch (sbd->type) {
1324 case IPW_SBD_TYPE_COMMAND:
1325 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map,
1326 BUS_DMASYNC_POSTWRITE);
1327 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map);
1330 case IPW_SBD_TYPE_HEADER:
1332 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE);
1333 bus_dmamap_unload(sc->hdr_dmat, shdr->map);
1334 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next);
1337 case IPW_SBD_TYPE_DATA:
1339 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map,
1340 BUS_DMASYNC_POSTWRITE);
1341 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1342 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next);
1344 if (sbuf->m->m_flags & M_TXCB)
1345 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/);
1347 ieee80211_free_node(sbuf->ni);
1349 sc->sc_tx_timer = 0;
1353 sbd->type = IPW_SBD_TYPE_NOASSOC;
1357 ipw_tx_intr(struct ipw_softc *sc)
1359 struct ifnet *ifp = sc->sc_ifp;
1360 struct ipw_soft_bd *sbd;
1363 if (!(sc->flags & IPW_FLAG_FW_INITED))
1366 r = CSR_READ_4(sc, IPW_CSR_TX_READ);
1368 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) {
1369 sbd = &sc->stbd_list[i];
1371 if (sbd->type == IPW_SBD_TYPE_DATA)
1374 ipw_release_sbd(sc, sbd);
1378 /* remember what the firmware has processed */
1379 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1;
1381 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1382 ipw_start_locked(ifp);
1386 ipw_fatal_error_intr(struct ipw_softc *sc)
1388 struct ifnet *ifp = sc->sc_ifp;
1389 struct ieee80211com *ic = ifp->if_l2com;
1390 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1392 device_printf(sc->sc_dev, "firmware error\n");
1395 ieee80211_cancel_scan(vap);
1398 ieee80211_runtask(ic, &sc->sc_init_task);
1404 struct ipw_softc *sc = arg;
1409 r = CSR_READ_4(sc, IPW_CSR_INTR);
1410 if (r == 0 || r == 0xffffffff)
1413 /* disable interrupts */
1414 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1416 /* acknowledge all interrupts */
1417 CSR_WRITE_4(sc, IPW_CSR_INTR, r);
1419 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) {
1420 ipw_fatal_error_intr(sc);
1424 if (r & IPW_INTR_FW_INIT_DONE)
1427 if (r & IPW_INTR_RX_TRANSFER)
1430 if (r & IPW_INTR_TX_TRANSFER)
1433 /* re-enable interrupts */
1434 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
1440 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1445 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
1447 *(bus_addr_t *)arg = segs[0].ds_addr;
1451 ipw_cmdname(int cmd)
1453 #define N(a) (sizeof(a) / sizeof(a[0]))
1454 static const struct {
1458 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" },
1459 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" },
1460 { IPW_CMD_DISABLE, "DISABLE" },
1461 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" },
1462 { IPW_CMD_ENABLE, "ENABLE" },
1463 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" },
1464 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" },
1465 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" },
1466 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" },
1467 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" },
1468 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" },
1469 { IPW_CMD_SET_ESSID, "SET_ESSID" },
1470 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" },
1471 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" },
1472 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" },
1473 { IPW_CMD_SET_MODE, "SET_MODE" },
1474 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" },
1475 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" },
1476 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" },
1477 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" },
1478 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" },
1479 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" },
1480 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" },
1481 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" },
1482 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" },
1483 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" },
1484 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" },
1487 static char buf[12];
1490 for (i = 0; i < N(cmds); i++)
1491 if (cmds[i].cmd == cmd)
1492 return cmds[i].name;
1493 snprintf(buf, sizeof(buf), "%u", cmd);
1499 * Send a command to the firmware and wait for the acknowledgement.
1502 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len)
1504 struct ipw_soft_bd *sbd;
1505 bus_addr_t physaddr;
1508 IPW_LOCK_ASSERT(sc);
1510 if (sc->flags & IPW_FLAG_BUSY) {
1511 device_printf(sc->sc_dev, "%s: %s not sent, busy\n",
1512 __func__, ipw_cmdname(type));
1515 sc->flags |= IPW_FLAG_BUSY;
1517 sbd = &sc->stbd_list[sc->txcur];
1519 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd,
1520 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0);
1522 device_printf(sc->sc_dev, "could not map command DMA memory\n");
1523 sc->flags &= ~IPW_FLAG_BUSY;
1527 sc->cmd.type = htole32(type);
1528 sc->cmd.subtype = 0;
1529 sc->cmd.len = htole32(len);
1531 memcpy(sc->cmd.data, data, len);
1533 sbd->type = IPW_SBD_TYPE_COMMAND;
1534 sbd->bd->physaddr = htole32(physaddr);
1535 sbd->bd->len = htole32(sizeof (struct ipw_cmd));
1537 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND |
1538 IPW_BD_FLAG_TX_LAST_FRAGMENT;
1540 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE);
1541 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1544 if (ipw_debug >= 4) {
1545 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type,
1547 /* Print the data buffer in the higher debug level */
1548 if (ipw_debug >= 9 && len > 0) {
1549 printf(" data: 0x");
1550 for (int i = 1; i <= len; i++)
1551 printf("%1D", (u_char *)data + len - i, "");
1559 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1560 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1562 /* wait at most one second for command to complete */
1563 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz);
1565 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n",
1566 __func__, ipw_cmdname(type), error);
1567 sc->flags &= ~IPW_FLAG_BUSY;
1574 ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni)
1576 struct ipw_softc *sc = ifp->if_softc;
1577 struct ieee80211com *ic = ifp->if_l2com;
1578 struct ieee80211vap *vap = ni->ni_vap;
1579 struct ieee80211_frame *wh;
1580 struct ipw_soft_bd *sbd;
1581 struct ipw_soft_hdr *shdr;
1582 struct ipw_soft_buf *sbuf;
1583 struct ieee80211_key *k;
1585 bus_dma_segment_t segs[IPW_MAX_NSEG];
1586 bus_addr_t physaddr;
1587 int nsegs, error, i;
1589 wh = mtod(m0, struct ieee80211_frame *);
1591 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1592 k = ieee80211_crypto_encap(ni, m0);
1597 /* packet header may have moved, reset our local pointer */
1598 wh = mtod(m0, struct ieee80211_frame *);
1601 if (ieee80211_radiotap_active_vap(vap)) {
1602 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap;
1606 ieee80211_radiotap_tx(vap, m0);
1609 shdr = SLIST_FIRST(&sc->free_shdr);
1610 sbuf = SLIST_FIRST(&sc->free_sbuf);
1611 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool"));
1613 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND);
1614 shdr->hdr.subtype = 0;
1615 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0;
1616 shdr->hdr.encrypt = 0;
1617 shdr->hdr.keyidx = 0;
1618 shdr->hdr.keysz = 0;
1619 shdr->hdr.fragmentsz = 0;
1620 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2);
1621 if (ic->ic_opmode == IEEE80211_M_STA)
1622 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3);
1624 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1);
1626 /* trim IEEE802.11 header */
1627 m_adj(m0, sizeof (struct ieee80211_frame));
1629 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs,
1631 if (error != 0 && error != EFBIG) {
1632 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1638 mnew = m_defrag(m0, M_DONTWAIT);
1640 device_printf(sc->sc_dev,
1641 "could not defragment mbuf\n");
1647 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0,
1650 device_printf(sc->sc_dev,
1651 "could not map mbuf (error %d)\n", error);
1657 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr,
1658 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0);
1660 device_printf(sc->sc_dev, "could not map header DMA memory\n");
1661 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map);
1666 SLIST_REMOVE_HEAD(&sc->free_sbuf, next);
1667 SLIST_REMOVE_HEAD(&sc->free_shdr, next);
1669 sbd = &sc->stbd_list[sc->txcur];
1670 sbd->type = IPW_SBD_TYPE_HEADER;
1672 sbd->bd->physaddr = htole32(physaddr);
1673 sbd->bd->len = htole32(sizeof (struct ipw_hdr));
1674 sbd->bd->nfrag = 1 + nsegs;
1675 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 |
1676 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1678 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n",
1679 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted,
1680 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr,
1684 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1689 for (i = 0; i < nsegs; i++) {
1690 sbd = &sc->stbd_list[sc->txcur];
1692 sbd->bd->physaddr = htole32(segs[i].ds_addr);
1693 sbd->bd->len = htole32(segs[i].ds_len);
1695 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3;
1696 if (i == nsegs - 1) {
1697 sbd->type = IPW_SBD_TYPE_DATA;
1699 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT;
1701 sbd->type = IPW_SBD_TYPE_NOASSOC;
1702 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT;
1705 DPRINTFN(5, ("sending fragment (%d)\n", i));
1708 sc->txcur = (sc->txcur + 1) % IPW_NTBD;
1711 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE);
1712 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE);
1713 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE);
1716 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
1722 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1723 const struct ieee80211_bpf_params *params)
1725 /* no support; just discard */
1727 ieee80211_free_node(ni);
1732 ipw_start(struct ifnet *ifp)
1734 struct ipw_softc *sc = ifp->if_softc;
1737 ipw_start_locked(ifp);
1742 ipw_start_locked(struct ifnet *ifp)
1744 struct ipw_softc *sc = ifp->if_softc;
1745 struct ieee80211_node *ni;
1748 IPW_LOCK_ASSERT(sc);
1751 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1754 if (sc->txfree < 1 + IPW_MAX_NSEG) {
1755 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1756 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1759 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1760 if (ipw_tx_start(ifp, m, ni) != 0) {
1761 ieee80211_free_node(ni);
1765 /* start watchdog timer */
1766 sc->sc_tx_timer = 5;
1771 ipw_watchdog(void *arg)
1773 struct ipw_softc *sc = arg;
1774 struct ifnet *ifp = sc->sc_ifp;
1775 struct ieee80211com *ic = ifp->if_l2com;
1777 IPW_LOCK_ASSERT(sc);
1779 if (sc->sc_tx_timer > 0) {
1780 if (--sc->sc_tx_timer == 0) {
1781 if_printf(ifp, "device timeout\n");
1783 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task);
1786 if (sc->sc_scan_timer > 0) {
1787 if (--sc->sc_scan_timer == 0) {
1788 DPRINTFN(3, ("Scan timeout\n"));
1790 if (sc->flags & IPW_FLAG_SCANNING) {
1792 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps));
1794 sc->flags &= ~IPW_FLAG_SCANNING;
1798 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1799 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
1803 ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1805 struct ipw_softc *sc = ifp->if_softc;
1806 struct ieee80211com *ic = ifp->if_l2com;
1807 struct ifreq *ifr = (struct ifreq *) data;
1808 int error = 0, startall = 0;
1813 if (ifp->if_flags & IFF_UP) {
1814 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1815 ipw_init_locked(sc);
1819 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1820 ipw_stop_locked(sc);
1824 ieee80211_start_all(ic);
1827 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1830 error = ether_ioctl(ifp, cmd, data);
1840 ipw_stop_master(struct ipw_softc *sc)
1845 /* disable interrupts */
1846 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0);
1848 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER);
1849 for (ntries = 0; ntries < 50; ntries++) {
1850 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED)
1855 device_printf(sc->sc_dev, "timeout waiting for master\n");
1857 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1858 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET);
1860 /* Clear all flags except the following */
1861 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH;
1865 ipw_reset(struct ipw_softc *sc)
1870 ipw_stop_master(sc);
1872 /* move adapter to D0 state */
1873 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1874 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1876 /* wait for clock stabilization */
1877 for (ntries = 0; ntries < 1000; ntries++) {
1878 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
1885 tmp = CSR_READ_4(sc, IPW_CSR_RST);
1886 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET);
1890 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
1891 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
1897 ipw_waitfordisable(struct ipw_softc *sc, int waitfor)
1899 int ms = hz < 1000 ? 1 : hz/10;
1902 for (i = 0; i < 100; i++) {
1903 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor)
1905 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms);
1906 if (error == 0 || error != EWOULDBLOCK)
1909 DPRINTF(("%s: timeout waiting for %s\n",
1910 __func__, waitfor ? "disable" : "enable"));
1915 ipw_enable(struct ipw_softc *sc)
1919 if ((sc->flags & IPW_FLAG_ENABLED) == 0) {
1920 DPRINTF(("Enable adapter\n"));
1921 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0);
1924 error = ipw_waitfordisable(sc, 0);
1927 sc->flags |= IPW_FLAG_ENABLED;
1933 ipw_disable(struct ipw_softc *sc)
1937 if (sc->flags & IPW_FLAG_ENABLED) {
1938 DPRINTF(("Disable adapter\n"));
1939 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0);
1942 error = ipw_waitfordisable(sc, 1);
1945 sc->flags &= ~IPW_FLAG_ENABLED;
1951 * Upload the microcode to the device.
1954 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size)
1958 MEM_WRITE_4(sc, 0x3000e0, 0x80000000);
1959 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
1961 MEM_WRITE_2(sc, 0x220000, 0x0703);
1962 MEM_WRITE_2(sc, 0x220000, 0x0707);
1964 MEM_WRITE_1(sc, 0x210014, 0x72);
1965 MEM_WRITE_1(sc, 0x210014, 0x72);
1967 MEM_WRITE_1(sc, 0x210000, 0x40);
1968 MEM_WRITE_1(sc, 0x210000, 0x00);
1969 MEM_WRITE_1(sc, 0x210000, 0x40);
1971 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size);
1973 MEM_WRITE_1(sc, 0x210000, 0x00);
1974 MEM_WRITE_1(sc, 0x210000, 0x00);
1975 MEM_WRITE_1(sc, 0x210000, 0x80);
1977 MEM_WRITE_2(sc, 0x220000, 0x0703);
1978 MEM_WRITE_2(sc, 0x220000, 0x0707);
1980 MEM_WRITE_1(sc, 0x210014, 0x72);
1981 MEM_WRITE_1(sc, 0x210014, 0x72);
1983 MEM_WRITE_1(sc, 0x210000, 0x00);
1984 MEM_WRITE_1(sc, 0x210000, 0x80);
1986 for (ntries = 0; ntries < 10; ntries++) {
1987 if (MEM_READ_1(sc, 0x210000) & 1)
1992 device_printf(sc->sc_dev,
1993 "timeout waiting for ucode to initialize\n");
1997 MEM_WRITE_4(sc, 0x3000e0, 0);
2002 /* set of macros to handle unaligned little endian data in firmware image */
2003 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24)
2004 #define GETLE16(p) ((p)[0] | (p)[1] << 8)
2006 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size)
2008 const uint8_t *p, *end;
2016 dst = GETLE32(p); p += 4;
2017 len = GETLE16(p); p += 2;
2019 ipw_write_mem_1(sc, dst, p, len);
2023 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
2026 /* enable interrupts */
2027 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK);
2029 /* kick the firmware */
2030 CSR_WRITE_4(sc, IPW_CSR_RST, 0);
2032 tmp = CSR_READ_4(sc, IPW_CSR_CTL);
2033 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);
2035 /* wait at most one second for firmware initialization to complete */
2036 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) {
2037 device_printf(sc->sc_dev, "timeout waiting for firmware "
2038 "initialization to complete\n");
2042 tmp = CSR_READ_4(sc, IPW_CSR_IO);
2043 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
2050 ipw_setwepkeys(struct ipw_softc *sc)
2052 struct ifnet *ifp = sc->sc_ifp;
2053 struct ieee80211com *ic = ifp->if_l2com;
2054 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2055 struct ipw_wep_key wepkey;
2056 struct ieee80211_key *wk;
2059 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2060 wk = &vap->iv_nw_keys[i];
2062 if (wk->wk_cipher == NULL ||
2063 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP)
2067 wepkey.len = wk->wk_keylen;
2068 memset(wepkey.key, 0, sizeof wepkey.key);
2069 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen);
2070 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx,
2072 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey,
2081 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen)
2083 struct ipw_wpa_ie wpaie;
2085 memset(&wpaie, 0, sizeof(wpaie));
2086 wpaie.len = htole32(ielen);
2087 /* XXX verify length */
2088 memcpy(&wpaie.ie, ie, ielen);
2089 DPRINTF(("Setting WPA IE\n"));
2090 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie));
2094 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid)
2096 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2098 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) {
2099 DPRINTF(("Setting mandatory BSSID to null\n"));
2100 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0);
2102 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":"));
2103 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID,
2104 bssid, IEEE80211_ADDR_LEN);
2109 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen)
2113 * A bug in the firmware breaks the ``don't associate''
2114 * bit in the scan options command. To compensate for
2115 * this install a bogus ssid when no ssid is specified
2116 * so the firmware won't try to associate.
2118 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n"));
2119 return ipw_cmd(sc, IPW_CMD_SET_ESSID,
2120 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27"
2121 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31"
2122 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b"
2123 "\x3c\x3d", IEEE80211_NWID_LEN);
2126 if (ipw_debug > 0) {
2127 printf("Setting ESSID to ");
2128 ieee80211_print_essid(ssid, ssidlen);
2132 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen);
2137 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags)
2139 struct ipw_scan_options opts;
2141 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags));
2142 opts.channels = htole32(chanmask);
2143 opts.flags = htole32(flags);
2144 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts));
2148 ipw_scan(struct ipw_softc *sc)
2153 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags));
2155 if (sc->flags & IPW_FLAG_SCANNING)
2157 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK;
2159 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */
2160 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE);
2165 * Setup null/bogus ssid so firmware doesn't use any previous
2166 * ssid to try and associate. This is because the ``don't
2167 * associate'' option bit is broken (sigh).
2169 error = ipw_setssid(sc, NULL, 0);
2174 * NB: the adapter may be disabled on association lost;
2175 * if so just re-enable it to kick off scanning.
2177 DPRINTF(("Starting scan\n"));
2178 sc->sc_scan_timer = 3;
2179 if (sc->flags & IPW_FLAG_ENABLED) {
2180 params = 0; /* XXX? */
2181 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN,
2182 ¶ms, sizeof(params));
2184 error = ipw_enable(sc);
2187 DPRINTF(("Scan failed\n"));
2188 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK);
2194 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan)
2196 struct ifnet *ifp = sc->sc_ifp;
2197 struct ieee80211com *ic = ifp->if_l2com;
2201 data = htole32(ieee80211_chan2ieee(ic, chan));
2202 DPRINTF(("Setting channel to %u\n", le32toh(data)));
2203 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data);
2205 ipw_setcurchan(sc, chan);
2210 ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2212 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2213 struct ipw_softc *sc = ifp->if_softc;
2214 struct ieee80211_node *ni = vap->iv_bss;
2215 struct ipw_security security;
2220 error = ipw_disable(sc);
2224 memset(&security, 0, sizeof security);
2225 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ?
2226 IPW_AUTH_SHARED : IPW_AUTH_OPEN;
2227 security.ciphers = htole32(IPW_CIPHER_NONE);
2228 DPRINTF(("Setting authmode to %u\n", security.authmode));
2229 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security,
2234 data = htole32(vap->iv_rtsthreshold);
2235 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data)));
2236 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data);
2240 data = htole32(vap->iv_fragthreshold);
2241 DPRINTF(("Setting frag threshold to %u\n", le32toh(data)));
2242 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data);
2246 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
2247 error = ipw_setwepkeys(sc);
2251 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2252 data = htole32(vap->iv_def_txkey);
2253 DPRINTF(("Setting wep tx key index to %u\n",
2255 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data,
2262 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0);
2263 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data)));
2264 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data);
2268 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen);
2272 error = ipw_setbssid(sc, ni->ni_bssid);
2276 if (vap->iv_appie_wpa != NULL) {
2277 struct ieee80211_appie *ie = vap->iv_appie_wpa;
2278 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len);
2282 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2283 error = ipw_setchannel(sc, ni->ni_chan);
2288 /* lock scan to ap's channel and enable associate */
2289 error = ipw_setscanopts(sc,
2290 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0);
2294 error = ipw_enable(sc); /* finally, enable adapter */
2296 sc->flags |= IPW_FLAG_ASSOCIATING;
2302 ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap)
2304 struct ifnet *ifp = vap->iv_ic->ic_ifp;
2305 struct ieee80211_node *ni = vap->iv_bss;
2306 struct ipw_softc *sc = ifp->if_softc;
2309 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":"));
2311 * NB: don't try to do this if ipw_stop_master has
2312 * shutdown the firmware and disabled interrupts.
2314 if (sc->flags & IPW_FLAG_FW_INITED) {
2315 sc->flags &= ~IPW_FLAG_ASSOCIATED;
2317 * NB: firmware currently ignores bssid parameter, but
2318 * supply it in case this changes (follow linux driver).
2320 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE,
2321 ni->ni_bssid, IEEE80211_ADDR_LEN);
2327 * Handler for sc_init_task. This is a simple wrapper around ipw_init().
2328 * It is called on firmware panics or on watchdog timeouts.
2331 ipw_init_task(void *context, int pending)
2337 ipw_init(void *priv)
2339 struct ipw_softc *sc = priv;
2340 struct ifnet *ifp = sc->sc_ifp;
2341 struct ieee80211com *ic = ifp->if_l2com;
2344 ipw_init_locked(sc);
2347 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2348 ieee80211_start_all(ic); /* start all vap's */
2352 ipw_init_locked(struct ipw_softc *sc)
2354 struct ifnet *ifp = sc->sc_ifp;
2355 struct ieee80211com *ic = ifp->if_l2com;
2356 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2357 const struct firmware *fp;
2358 const struct ipw_firmware_hdr *hdr;
2361 IPW_LOCK_ASSERT(sc);
2363 DPRINTF(("%s: state %s flags 0x%x\n", __func__,
2364 ieee80211_state_name[vap->iv_state], sc->flags));
2367 * Avoid re-entrant calls. We need to release the mutex in ipw_init()
2368 * when loading the firmware and we don't want to be called during this
2371 if (sc->flags & IPW_FLAG_INIT_LOCKED)
2373 sc->flags |= IPW_FLAG_INIT_LOCKED;
2375 ipw_stop_locked(sc);
2377 if (ipw_reset(sc) != 0) {
2378 device_printf(sc->sc_dev, "could not reset adapter\n");
2382 if (sc->sc_firmware == NULL) {
2383 device_printf(sc->sc_dev, "no firmware\n");
2386 /* NB: consistency already checked on load */
2387 fp = sc->sc_firmware;
2388 hdr = (const struct ipw_firmware_hdr *)fp->data;
2390 DPRINTF(("Loading firmware image '%s'\n", fp->name));
2391 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz);
2392 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) {
2393 device_printf(sc->sc_dev, "could not load microcode\n");
2397 ipw_stop_master(sc);
2400 * Setup tx, rx and status rings.
2402 sc->txold = IPW_NTBD - 1;
2404 sc->txfree = IPW_NTBD - 2;
2405 sc->rxcur = IPW_NRBD - 1;
2407 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys);
2408 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD);
2409 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0);
2410 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur);
2412 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys);
2413 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD);
2414 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0);
2415 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur);
2417 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys);
2419 fw = (const char *)fp->data + sizeof *hdr;
2420 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) {
2421 device_printf(sc->sc_dev, "could not load firmware\n");
2425 sc->flags |= IPW_FLAG_FW_INITED;
2427 /* retrieve information tables base addresses */
2428 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE);
2429 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE);
2431 ipw_write_table1(sc, IPW_INFO_LOCK, 0);
2433 if (ipw_config(sc) != 0) {
2434 device_printf(sc->sc_dev, "device configuration failed\n");
2438 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc);
2439 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2440 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2442 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2446 ipw_stop_locked(sc);
2447 sc->flags &=~ IPW_FLAG_INIT_LOCKED;
2451 ipw_config(struct ipw_softc *sc)
2453 struct ifnet *ifp = sc->sc_ifp;
2454 struct ieee80211com *ic = ifp->if_l2com;
2455 struct ipw_configuration config;
2459 error = ipw_disable(sc);
2463 switch (ic->ic_opmode) {
2464 case IEEE80211_M_STA:
2465 case IEEE80211_M_HOSTAP:
2466 case IEEE80211_M_WDS: /* XXX */
2467 data = htole32(IPW_MODE_BSS);
2469 case IEEE80211_M_IBSS:
2470 case IEEE80211_M_AHDEMO:
2471 data = htole32(IPW_MODE_IBSS);
2473 case IEEE80211_M_MONITOR:
2474 data = htole32(IPW_MODE_MONITOR);
2477 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2480 DPRINTF(("Setting mode to %u\n", le32toh(data)));
2481 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data);
2485 if (ic->ic_opmode == IEEE80211_M_IBSS ||
2486 ic->ic_opmode == IEEE80211_M_MONITOR) {
2487 error = ipw_setchannel(sc, ic->ic_curchan);
2492 if (ic->ic_opmode == IEEE80211_M_MONITOR)
2493 return ipw_enable(sc);
2495 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK |
2496 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE);
2497 if (ic->ic_opmode == IEEE80211_M_IBSS)
2498 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START);
2499 if (ifp->if_flags & IFF_PROMISC)
2500 config.flags |= htole32(IPW_CFG_PROMISCUOUS);
2501 config.bss_chan = htole32(0x3fff); /* channels 1-14 */
2502 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */
2503 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags)));
2504 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config);
2508 data = htole32(0xf); /* 1, 2, 5.5, 11 */
2509 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data)));
2510 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data);
2514 /* Use the same rate set */
2515 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data)));
2516 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data);
2520 /* Use the same rate set */
2521 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data)));
2522 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data);
2526 data = htole32(IPW_POWER_MODE_CAM);
2527 DPRINTF(("Setting power mode to %u\n", le32toh(data)));
2528 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data);
2532 if (ic->ic_opmode == IEEE80211_M_IBSS) {
2533 data = htole32(32); /* default value */
2534 DPRINTF(("Setting tx power index to %u\n", le32toh(data)));
2535 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data,
2545 ipw_stop(void *priv)
2547 struct ipw_softc *sc = priv;
2550 ipw_stop_locked(sc);
2555 ipw_stop_locked(struct ipw_softc *sc)
2557 struct ifnet *ifp = sc->sc_ifp;
2560 IPW_LOCK_ASSERT(sc);
2562 callout_stop(&sc->sc_wdtimer);
2563 ipw_stop_master(sc);
2565 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET);
2568 * Release tx buffers.
2570 for (i = 0; i < IPW_NTBD; i++)
2571 ipw_release_sbd(sc, &sc->stbd_list[i]);
2573 sc->sc_tx_timer = 0;
2574 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2578 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS)
2580 struct ipw_softc *sc = arg1;
2581 uint32_t i, size, buf[256];
2583 memset(buf, 0, sizeof buf);
2585 if (!(sc->flags & IPW_FLAG_FW_INITED))
2586 return SYSCTL_OUT(req, buf, sizeof buf);
2588 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base);
2590 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256);
2591 for (i = 1; i < size; i++)
2592 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA));
2594 return SYSCTL_OUT(req, buf, size);
2598 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS)
2600 struct ipw_softc *sc = arg1;
2603 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) &&
2604 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));
2606 return SYSCTL_OUT(req, &val, sizeof val);
2610 ipw_read_table1(struct ipw_softc *sc, uint32_t off)
2612 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off));
2616 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info)
2618 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info);
2623 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len)
2625 uint32_t addr, info;
2626 uint16_t count, size;
2629 /* addr[4] + count[2] + size[2] */
2630 addr = MEM_READ_4(sc, sc->table2_base + off);
2631 info = MEM_READ_4(sc, sc->table2_base + off + 4);
2634 size = info & 0xffff;
2635 total = count * size;
2643 ipw_read_mem_1(sc, addr, buf, total);
2649 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap,
2652 for (; count > 0; offset++, datap++, count--) {
2653 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2654 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3));
2660 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap,
2663 for (; count > 0; offset++, datap++, count--) {
2664 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3);
2665 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap);
2670 ipw_scan_start(struct ieee80211com *ic)
2672 struct ifnet *ifp = ic->ic_ifp;
2673 struct ipw_softc *sc = ifp->if_softc;
2681 ipw_set_channel(struct ieee80211com *ic)
2683 struct ifnet *ifp = ic->ic_ifp;
2684 struct ipw_softc *sc = ifp->if_softc;
2687 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2689 ipw_setchannel(sc, ic->ic_curchan);
2696 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
2698 /* NB: all channels are scanned at once */
2702 ipw_scan_mindwell(struct ieee80211_scan_state *ss)
2704 /* NB: don't try to abort scan; wait for firmware to finish */
2708 ipw_scan_end(struct ieee80211com *ic)
2710 struct ifnet *ifp = ic->ic_ifp;
2711 struct ipw_softc *sc = ifp->if_softc;
2714 sc->flags &= ~IPW_FLAG_SCANNING;