2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #define VERSION "20071127"
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
25 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
27 * The 3945ABG network adapter doesn't use traditional hardware as
28 * many other adaptors do. Instead at run time the eeprom is set into a known
29 * state and told to load boot firmware. The boot firmware loads an init and a
30 * main binary firmware image into SRAM on the card via DMA.
31 * Once the firmware is loaded, the driver/hw then
32 * communicate by way of circular dma rings via the SRAM to the firmware.
34 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
35 * The 4 tx data rings allow for prioritization QoS.
37 * The rx data ring consists of 32 dma buffers. Two registers are used to
38 * indicate where in the ring the driver and the firmware are up to. The
39 * driver sets the initial read index (reg1) and the initial write index (reg2),
40 * the firmware updates the read index (reg1) on rx of a packet and fires an
41 * interrupt. The driver then processes the buffers starting at reg1 indicating
42 * to the firmware which buffers have been accessed by updating reg2. At the
43 * same time allocating new memory for the processed buffer.
45 * A similar thing happens with the tx rings. The difference is the firmware
46 * stop processing buffers once the queue is full and until confirmation
47 * of a successful transmition (tx_intr) has occurred.
49 * The command ring operates in the same manner as the tx queues.
51 * All communication direct to the card (ie eeprom) is classed as Stage1
54 * All communication via the firmware to the card is classed as State2.
55 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
56 * firmware. The bootstrap firmware and runtime firmware are loaded
57 * from host memory via dma to the card then told to execute. From this point
58 * on the majority of communications between the driver and the card goes
64 #include <sys/param.h>
65 #include <sys/sysctl.h>
66 #include <sys/sockio.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/systm.h>
71 #include <sys/malloc.h>
72 #include <sys/queue.h>
73 #include <sys/taskqueue.h>
74 #include <sys/module.h>
76 #include <sys/endian.h>
77 #include <sys/linker.h>
78 #include <sys/firmware.h>
80 #include <machine/bus.h>
81 #include <machine/resource.h>
84 #include <dev/pci/pcireg.h>
85 #include <dev/pci/pcivar.h>
89 #include <net/if_arp.h>
90 #include <net/ethernet.h>
91 #include <net/if_dl.h>
92 #include <net/if_media.h>
93 #include <net/if_types.h>
95 #include <net80211/ieee80211_var.h>
96 #include <net80211/ieee80211_radiotap.h>
97 #include <net80211/ieee80211_regdomain.h>
98 #include <net80211/ieee80211_ratectl.h>
100 #include <netinet/in.h>
101 #include <netinet/in_systm.h>
102 #include <netinet/in_var.h>
103 #include <netinet/ip.h>
104 #include <netinet/if_ether.h>
106 #include <dev/wpi/if_wpireg.h>
107 #include <dev/wpi/if_wpivar.h>
112 #define DPRINTF(x) do { if (wpi_debug != 0) printf x; } while (0)
113 #define DPRINTFN(n, x) do { if (wpi_debug & n) printf x; } while (0)
114 #define WPI_DEBUG_SET (wpi_debug != 0)
117 WPI_DEBUG_UNUSED = 0x00000001, /* Unused */
118 WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */
119 WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/
120 WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */
121 WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/
122 WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */
123 WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */
124 WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */
125 WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */
126 WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */
127 WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */
128 WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */
129 WPI_DEBUG_ANY = 0xffffffff
132 static int wpi_debug = 0;
133 SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level");
134 TUNABLE_INT("debug.wpi", &wpi_debug);
138 #define DPRINTFN(n, x)
139 #define WPI_DEBUG_SET 0
149 static const struct wpi_ident wpi_ident_table[] = {
150 /* The below entries support ABG regardless of the subid */
151 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
152 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
153 /* The below entries only support BG */
154 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
155 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
156 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
157 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
161 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
162 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
163 const uint8_t [IEEE80211_ADDR_LEN],
164 const uint8_t [IEEE80211_ADDR_LEN]);
165 static void wpi_vap_delete(struct ieee80211vap *);
166 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
167 void **, bus_size_t, bus_size_t, int);
168 static void wpi_dma_contig_free(struct wpi_dma_info *);
169 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
170 static int wpi_alloc_shared(struct wpi_softc *);
171 static void wpi_free_shared(struct wpi_softc *);
172 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
173 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
174 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
175 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
177 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
178 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
179 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
180 static void wpi_mem_lock(struct wpi_softc *);
181 static void wpi_mem_unlock(struct wpi_softc *);
182 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
183 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
184 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
185 const uint32_t *, int);
186 static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
187 static int wpi_alloc_fwmem(struct wpi_softc *);
188 static void wpi_free_fwmem(struct wpi_softc *);
189 static int wpi_load_firmware(struct wpi_softc *);
190 static void wpi_unload_firmware(struct wpi_softc *);
191 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int);
192 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *,
193 struct wpi_rx_data *);
194 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *);
195 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *);
196 static void wpi_notif_intr(struct wpi_softc *);
197 static void wpi_intr(void *);
198 static uint8_t wpi_plcp_signal(int);
199 static void wpi_watchdog(void *);
200 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
201 struct ieee80211_node *, int);
202 static void wpi_start(struct ifnet *);
203 static void wpi_start_locked(struct ifnet *);
204 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
205 const struct ieee80211_bpf_params *);
206 static void wpi_scan_start(struct ieee80211com *);
207 static void wpi_scan_end(struct ieee80211com *);
208 static void wpi_set_channel(struct ieee80211com *);
209 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
210 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
211 static int wpi_ioctl(struct ifnet *, u_long, caddr_t);
212 static void wpi_read_eeprom(struct wpi_softc *,
213 uint8_t macaddr[IEEE80211_ADDR_LEN]);
214 static void wpi_read_eeprom_channels(struct wpi_softc *, int);
215 static void wpi_read_eeprom_group(struct wpi_softc *, int);
216 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int);
217 static int wpi_wme_update(struct ieee80211com *);
218 static int wpi_mrr_setup(struct wpi_softc *);
219 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
220 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *);
222 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
224 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
225 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
226 static int wpi_scan(struct wpi_softc *);
227 static int wpi_config(struct wpi_softc *);
228 static void wpi_stop_master(struct wpi_softc *);
229 static int wpi_power_up(struct wpi_softc *);
230 static int wpi_reset(struct wpi_softc *);
231 static void wpi_hwreset(void *, int);
232 static void wpi_rfreset(void *, int);
233 static void wpi_hw_config(struct wpi_softc *);
234 static void wpi_init(void *);
235 static void wpi_init_locked(struct wpi_softc *, int);
236 static void wpi_stop(struct wpi_softc *);
237 static void wpi_stop_locked(struct wpi_softc *);
239 static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
241 static void wpi_calib_timeout(void *);
242 static void wpi_power_calibration(struct wpi_softc *, int);
243 static int wpi_get_power_index(struct wpi_softc *,
244 struct wpi_power_group *, struct ieee80211_channel *, int);
246 static const char *wpi_cmd_str(int);
248 static int wpi_probe(device_t);
249 static int wpi_attach(device_t);
250 static int wpi_detach(device_t);
251 static int wpi_shutdown(device_t);
252 static int wpi_suspend(device_t);
253 static int wpi_resume(device_t);
255 static device_method_t wpi_methods[] = {
256 /* Device interface */
257 DEVMETHOD(device_probe, wpi_probe),
258 DEVMETHOD(device_attach, wpi_attach),
259 DEVMETHOD(device_detach, wpi_detach),
260 DEVMETHOD(device_shutdown, wpi_shutdown),
261 DEVMETHOD(device_suspend, wpi_suspend),
262 DEVMETHOD(device_resume, wpi_resume),
267 static driver_t wpi_driver = {
270 sizeof (struct wpi_softc)
273 static devclass_t wpi_devclass;
275 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL);
277 MODULE_VERSION(wpi, 1);
279 static const uint8_t wpi_ridx_to_plcp[] = {
280 /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
281 /* R1-R4 (ral/ural is R4-R1) */
282 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
283 /* CCK: device-dependent */
287 static const uint8_t wpi_ridx_to_rate[] = {
288 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */
289 2, 4, 11, 22 /*CCK */
293 wpi_probe(device_t dev)
295 const struct wpi_ident *ident;
297 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
298 if (pci_get_vendor(dev) == ident->vendor &&
299 pci_get_device(dev) == ident->device) {
300 device_set_desc(dev, ident->name);
301 return (BUS_PROBE_DEFAULT);
308 * Load the firmare image from disk to the allocated dma buffer.
309 * we also maintain the reference to the firmware pointer as there
310 * is times where we may need to reload the firmware but we are not
311 * in a context that can access the filesystem (ie taskq cause by restart)
313 * @return 0 on success, an errno on failure
316 wpi_load_firmware(struct wpi_softc *sc)
318 const struct firmware *fp;
319 struct wpi_dma_info *dma = &sc->fw_dma;
320 const struct wpi_firmware_hdr *hdr;
321 const uint8_t *itext, *idata, *rtext, *rdata, *btext;
322 uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz;
325 DPRINTFN(WPI_DEBUG_FIRMWARE,
326 ("Attempting Loading Firmware from wpi_fw module\n"));
330 if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) {
331 device_printf(sc->sc_dev,
332 "could not load firmware image 'wpifw'\n");
342 /* Validate the firmware is minimum a particular version */
343 if (fp->version < WPI_FW_MINVERSION) {
344 device_printf(sc->sc_dev,
345 "firmware version is too old. Need %d, got %d\n",
352 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
353 device_printf(sc->sc_dev,
354 "firmware file too short: %zu bytes\n", fp->datasize);
359 hdr = (const struct wpi_firmware_hdr *)fp->data;
361 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
362 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
364 rtextsz = le32toh(hdr->rtextsz);
365 rdatasz = le32toh(hdr->rdatasz);
366 itextsz = le32toh(hdr->itextsz);
367 idatasz = le32toh(hdr->idatasz);
368 btextsz = le32toh(hdr->btextsz);
370 /* check that all firmware segments are present */
371 if (fp->datasize < sizeof (struct wpi_firmware_hdr) +
372 rtextsz + rdatasz + itextsz + idatasz + btextsz) {
373 device_printf(sc->sc_dev,
374 "firmware file too short: %zu bytes\n", fp->datasize);
375 error = ENXIO; /* XXX appropriate error code? */
379 /* get pointers to firmware segments */
380 rtext = (const uint8_t *)(hdr + 1);
381 rdata = rtext + rtextsz;
382 itext = rdata + rdatasz;
383 idata = itext + itextsz;
384 btext = idata + idatasz;
386 DPRINTFN(WPI_DEBUG_FIRMWARE,
387 ("Firmware Version: Major %d, Minor %d, Driver %d, \n"
388 "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n",
389 (le32toh(hdr->version) & 0xff000000) >> 24,
390 (le32toh(hdr->version) & 0x00ff0000) >> 16,
391 (le32toh(hdr->version) & 0x0000ffff),
393 itextsz, idatasz, btextsz));
395 DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext));
396 DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata));
397 DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext));
398 DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata));
399 DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext));
402 if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ ||
403 rdatasz > WPI_FW_MAIN_DATA_MAXSZ ||
404 itextsz > WPI_FW_INIT_TEXT_MAXSZ ||
405 idatasz > WPI_FW_INIT_DATA_MAXSZ ||
406 btextsz > WPI_FW_BOOT_TEXT_MAXSZ ||
407 (btextsz & 3) != 0) {
408 device_printf(sc->sc_dev, "firmware invalid\n");
413 /* copy initialization images into pre-allocated DMA-safe memory */
414 memcpy(dma->vaddr, idata, idatasz);
415 memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz);
417 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
419 /* tell adapter where to find initialization images */
421 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
422 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz);
423 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
424 dma->paddr + WPI_FW_INIT_DATA_MAXSZ);
425 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz);
428 /* load firmware boot code */
429 if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) {
430 device_printf(sc->sc_dev, "Failed to load microcode\n");
434 /* now press "execute" */
435 WPI_WRITE(sc, WPI_RESET, 0);
437 /* wait at most one second for the first alive notification */
438 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
439 device_printf(sc->sc_dev,
440 "timeout waiting for adapter to initialize\n");
444 /* copy runtime images into pre-allocated DMA-sage memory */
445 memcpy(dma->vaddr, rdata, rdatasz);
446 memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz);
447 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
449 /* tell adapter where to find runtime images */
451 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
452 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz);
453 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
454 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ);
455 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz);
458 /* wait at most one second for the first alive notification */
459 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
460 device_printf(sc->sc_dev,
461 "timeout waiting for adapter to initialize2\n");
465 DPRINTFN(WPI_DEBUG_FIRMWARE,
466 ("Firmware loaded to driver successfully\n"));
469 wpi_unload_firmware(sc);
474 * Free the referenced firmware image
477 wpi_unload_firmware(struct wpi_softc *sc)
482 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
489 wpi_attach(device_t dev)
491 struct wpi_softc *sc = device_get_softc(dev);
493 struct ieee80211com *ic;
494 int ac, error, rid, supportsa = 1;
496 const struct wpi_ident *ident;
497 uint8_t macaddr[IEEE80211_ADDR_LEN];
501 if (bootverbose || WPI_DEBUG_SET)
502 device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION);
505 * Some card's only support 802.11b/g not a, check to see if
506 * this is one such card. A 0x0 in the subdevice table indicates
507 * the entire subdevice range is to be ignored.
509 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
510 if (ident->subdevice &&
511 pci_get_subdevice(dev) == ident->subdevice) {
517 /* Create the tasks that can be queued */
518 TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc);
519 TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc);
523 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
524 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
526 /* disable the retry timeout register */
527 pci_write_config(dev, 0x41, 0, 1);
529 /* enable bus-mastering */
530 pci_enable_busmaster(dev);
533 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
535 if (sc->mem == NULL) {
536 device_printf(dev, "could not allocate memory resource\n");
541 sc->sc_st = rman_get_bustag(sc->mem);
542 sc->sc_sh = rman_get_bushandle(sc->mem);
545 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
546 RF_ACTIVE | RF_SHAREABLE);
547 if (sc->irq == NULL) {
548 device_printf(dev, "could not allocate interrupt resource\n");
554 * Allocate DMA memory for firmware transfers.
556 if ((error = wpi_alloc_fwmem(sc)) != 0) {
557 printf(": could not allocate firmware memory\n");
563 * Put adapter into a known state.
565 if ((error = wpi_reset(sc)) != 0) {
566 device_printf(dev, "could not reset adapter\n");
571 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
572 if (bootverbose || WPI_DEBUG_SET)
573 device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp);
577 /* Allocate shared page */
578 if ((error = wpi_alloc_shared(sc)) != 0) {
579 device_printf(dev, "could not allocate shared page\n");
583 /* tx data queues - 4 for QoS purposes */
584 for (ac = 0; ac < WME_NUM_AC; ac++) {
585 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac);
587 device_printf(dev, "could not allocate Tx ring %d\n",ac);
592 /* command queue to talk to the card's firmware */
593 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4);
595 device_printf(dev, "could not allocate command ring\n");
599 /* receive data queue */
600 error = wpi_alloc_rx_ring(sc, &sc->rxq);
602 device_printf(dev, "could not allocate Rx ring\n");
606 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
608 device_printf(dev, "can not if_alloc()\n");
615 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
616 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
618 /* set device capabilities */
620 IEEE80211_C_STA /* station mode supported */
621 | IEEE80211_C_MONITOR /* monitor mode supported */
622 | IEEE80211_C_TXPMGT /* tx power management */
623 | IEEE80211_C_SHSLOT /* short slot time supported */
624 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
625 | IEEE80211_C_WPA /* 802.11i */
626 /* XXX looks like WME is partly supported? */
628 | IEEE80211_C_IBSS /* IBSS mode support */
629 | IEEE80211_C_BGSCAN /* capable of bg scanning */
630 | IEEE80211_C_WME /* 802.11e */
631 | IEEE80211_C_HOSTAP /* Host access point mode */
636 * Read in the eeprom and also setup the channels for
637 * net80211. We don't set the rates as net80211 does this for us
639 wpi_read_eeprom(sc, macaddr);
641 if (bootverbose || WPI_DEBUG_SET) {
642 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain);
643 device_printf(sc->sc_dev, "Hardware Type: %c\n",
644 sc->type > 1 ? 'B': '?');
645 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
646 ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?');
647 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
648 supportsa ? "does" : "does not");
650 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check
651 what sc->rev really represents - benjsc 20070615 */
654 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
656 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
657 ifp->if_init = wpi_init;
658 ifp->if_ioctl = wpi_ioctl;
659 ifp->if_start = wpi_start;
660 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
661 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
662 IFQ_SET_READY(&ifp->if_snd);
664 ieee80211_ifattach(ic, macaddr);
665 /* override default methods */
666 ic->ic_raw_xmit = wpi_raw_xmit;
667 ic->ic_wme.wme_update = wpi_wme_update;
668 ic->ic_scan_start = wpi_scan_start;
669 ic->ic_scan_end = wpi_scan_end;
670 ic->ic_set_channel = wpi_set_channel;
671 ic->ic_scan_curchan = wpi_scan_curchan;
672 ic->ic_scan_mindwell = wpi_scan_mindwell;
674 ic->ic_vap_create = wpi_vap_create;
675 ic->ic_vap_delete = wpi_vap_delete;
677 ieee80211_radiotap_attach(ic,
678 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
679 WPI_TX_RADIOTAP_PRESENT,
680 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
681 WPI_RX_RADIOTAP_PRESENT);
684 * Hook our interrupt after all initialization is complete.
686 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET |INTR_MPSAFE,
687 NULL, wpi_intr, sc, &sc->sc_ih);
689 device_printf(dev, "could not set up interrupt\n");
694 ieee80211_announce(ic);
696 ieee80211_announce_channels(ic);
700 fail: wpi_detach(dev);
705 wpi_detach(device_t dev)
707 struct wpi_softc *sc = device_get_softc(dev);
708 struct ifnet *ifp = sc->sc_ifp;
709 struct ieee80211com *ic;
713 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
718 ieee80211_draintask(ic, &sc->sc_restarttask);
719 ieee80211_draintask(ic, &sc->sc_radiotask);
721 callout_drain(&sc->watchdog_to);
722 callout_drain(&sc->calib_to);
723 ieee80211_ifdetach(ic);
727 if (sc->txq[0].data_dmat) {
728 for (ac = 0; ac < WME_NUM_AC; ac++)
729 wpi_free_tx_ring(sc, &sc->txq[ac]);
731 wpi_free_tx_ring(sc, &sc->cmdq);
732 wpi_free_rx_ring(sc, &sc->rxq);
736 if (sc->fw_fp != NULL) {
737 wpi_unload_firmware(sc);
745 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq),
748 bus_release_resource(dev, SYS_RES_MEMORY,
749 rman_get_rid(sc->mem), sc->mem);
754 WPI_LOCK_DESTROY(sc);
759 static struct ieee80211vap *
760 wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
761 enum ieee80211_opmode opmode, int flags,
762 const uint8_t bssid[IEEE80211_ADDR_LEN],
763 const uint8_t mac[IEEE80211_ADDR_LEN])
766 struct ieee80211vap *vap;
768 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
770 wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
771 M_80211_VAP, M_NOWAIT | M_ZERO);
775 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
776 /* override with driver methods */
777 wvp->newstate = vap->iv_newstate;
778 vap->iv_newstate = wpi_newstate;
780 ieee80211_ratectl_init(vap);
782 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
783 ic->ic_opmode = opmode;
788 wpi_vap_delete(struct ieee80211vap *vap)
790 struct wpi_vap *wvp = WPI_VAP(vap);
792 ieee80211_ratectl_deinit(vap);
793 ieee80211_vap_detach(vap);
794 free(wvp, M_80211_VAP);
798 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
803 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
805 *(bus_addr_t *)arg = segs[0].ds_addr;
809 * Allocates a contiguous block of dma memory of the requested size and
810 * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217,
811 * allocations greater than 4096 may fail. Hence if the requested alignment is
812 * greater we allocate 'alignment' size extra memory and shift the vaddr and
813 * paddr after the dma load. This bypasses the problem at the cost of a little
817 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
818 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
824 DPRINTFN(WPI_DEBUG_DMA,
825 ("Size: %zd - alignment %zd\n", size, alignment));
830 if (alignment > 4096) {
832 reqsize = size + alignment;
837 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), align,
838 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
841 NULL, NULL, &dma->tag);
843 device_printf(sc->sc_dev,
844 "could not create shared page DMA tag\n");
847 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start,
848 flags | BUS_DMA_ZERO, &dma->map);
850 device_printf(sc->sc_dev,
851 "could not allocate shared page DMA memory\n");
855 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start,
856 reqsize, wpi_dma_map_addr, &dma->paddr_start, flags);
858 /* Save the original pointers so we can free all the memory */
859 dma->paddr = dma->paddr_start;
860 dma->vaddr = dma->vaddr_start;
863 * Check the alignment and increment by 4096 until we get the
864 * requested alignment. Fail if can't obtain the alignment
867 if ((dma->paddr & (alignment -1 )) != 0) {
870 for (i = 0; i < alignment / 4096; i++) {
871 if ((dma->paddr & (alignment - 1 )) == 0)
876 if (i == alignment / 4096) {
877 device_printf(sc->sc_dev,
878 "alignment requirement was not satisfied\n");
884 device_printf(sc->sc_dev,
885 "could not load shared page DMA map\n");
895 wpi_dma_contig_free(dma);
900 wpi_dma_contig_free(struct wpi_dma_info *dma)
903 if (dma->map != NULL) {
904 if (dma->paddr_start != 0) {
905 bus_dmamap_sync(dma->tag, dma->map,
906 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
907 bus_dmamap_unload(dma->tag, dma->map);
909 bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map);
911 bus_dma_tag_destroy(dma->tag);
916 * Allocate a shared page between host and NIC.
919 wpi_alloc_shared(struct wpi_softc *sc)
923 error = wpi_dma_contig_alloc(sc, &sc->shared_dma,
924 (void **)&sc->shared, sizeof (struct wpi_shared),
929 device_printf(sc->sc_dev,
930 "could not allocate shared area DMA memory\n");
937 wpi_free_shared(struct wpi_softc *sc)
939 wpi_dma_contig_free(&sc->shared_dma);
943 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
950 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
951 (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t),
952 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
955 device_printf(sc->sc_dev,
956 "%s: could not allocate rx ring DMA memory, error %d\n",
961 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
962 BUS_SPACE_MAXADDR_32BIT,
963 BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1,
964 MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat);
966 device_printf(sc->sc_dev,
967 "%s: bus_dma_tag_create_failed, error %d\n",
975 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
976 struct wpi_rx_data *data = &ring->data[i];
980 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
982 device_printf(sc->sc_dev,
983 "%s: bus_dmamap_create failed, error %d\n",
987 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
989 device_printf(sc->sc_dev,
990 "%s: could not allocate rx mbuf\n", __func__);
995 error = bus_dmamap_load(ring->data_dmat, data->map,
996 mtod(m, caddr_t), MJUMPAGESIZE,
997 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
998 if (error != 0 && error != EFBIG) {
999 device_printf(sc->sc_dev,
1000 "%s: bus_dmamap_load failed, error %d\n",
1003 error = ENOMEM; /* XXX unique code */
1006 bus_dmamap_sync(ring->data_dmat, data->map,
1007 BUS_DMASYNC_PREWRITE);
1010 ring->desc[i] = htole32(paddr);
1012 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1013 BUS_DMASYNC_PREWRITE);
1016 wpi_free_rx_ring(sc, ring);
1021 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1027 WPI_WRITE(sc, WPI_RX_CONFIG, 0);
1029 for (ntries = 0; ntries < 100; ntries++) {
1030 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
1038 if (ntries == 100 && wpi_debug > 0)
1039 device_printf(sc->sc_dev, "timeout resetting Rx ring\n");
1046 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1050 wpi_dma_contig_free(&ring->desc_dma);
1052 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1053 struct wpi_rx_data *data = &ring->data[i];
1055 if (data->m != NULL) {
1056 bus_dmamap_sync(ring->data_dmat, data->map,
1057 BUS_DMASYNC_POSTREAD);
1058 bus_dmamap_unload(ring->data_dmat, data->map);
1061 if (data->map != NULL)
1062 bus_dmamap_destroy(ring->data_dmat, data->map);
1067 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count,
1070 struct wpi_tx_data *data;
1074 ring->count = count;
1079 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1080 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc),
1081 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1084 device_printf(sc->sc_dev, "could not allocate tx dma memory\n");
1088 /* update shared page with ring's base address */
1089 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1091 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1092 count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN,
1096 device_printf(sc->sc_dev,
1097 "could not allocate tx command DMA memory\n");
1101 ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF,
1103 if (ring->data == NULL) {
1104 device_printf(sc->sc_dev,
1105 "could not allocate tx data slots\n");
1109 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1110 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1111 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1114 device_printf(sc->sc_dev, "could not create data DMA tag\n");
1118 for (i = 0; i < count; i++) {
1119 data = &ring->data[i];
1121 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1123 device_printf(sc->sc_dev,
1124 "could not create tx buf DMA map\n");
1127 bus_dmamap_sync(ring->data_dmat, data->map,
1128 BUS_DMASYNC_PREWRITE);
1134 wpi_free_tx_ring(sc, ring);
1139 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1141 struct wpi_tx_data *data;
1146 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
1147 for (ntries = 0; ntries < 100; ntries++) {
1148 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
1153 if (ntries == 100 && wpi_debug > 0)
1154 device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n",
1159 for (i = 0; i < ring->count; i++) {
1160 data = &ring->data[i];
1162 if (data->m != NULL) {
1163 bus_dmamap_unload(ring->data_dmat, data->map);
1174 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1176 struct wpi_tx_data *data;
1179 wpi_dma_contig_free(&ring->desc_dma);
1180 wpi_dma_contig_free(&ring->cmd_dma);
1182 if (ring->data != NULL) {
1183 for (i = 0; i < ring->count; i++) {
1184 data = &ring->data[i];
1186 if (data->m != NULL) {
1187 bus_dmamap_sync(ring->data_dmat, data->map,
1188 BUS_DMASYNC_POSTWRITE);
1189 bus_dmamap_unload(ring->data_dmat, data->map);
1194 free(ring->data, M_DEVBUF);
1197 if (ring->data_dmat != NULL)
1198 bus_dma_tag_destroy(ring->data_dmat);
1202 wpi_shutdown(device_t dev)
1204 struct wpi_softc *sc = device_get_softc(dev);
1207 wpi_stop_locked(sc);
1208 wpi_unload_firmware(sc);
1215 wpi_suspend(device_t dev)
1217 struct wpi_softc *sc = device_get_softc(dev);
1218 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1220 ieee80211_suspend_all(ic);
1225 wpi_resume(device_t dev)
1227 struct wpi_softc *sc = device_get_softc(dev);
1228 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1230 pci_write_config(dev, 0x41, 0, 1);
1232 ieee80211_resume_all(ic);
1237 * Called by net80211 when ever there is a change to 80211 state machine
1240 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1242 struct wpi_vap *wvp = WPI_VAP(vap);
1243 struct ieee80211com *ic = vap->iv_ic;
1244 struct ifnet *ifp = ic->ic_ifp;
1245 struct wpi_softc *sc = ifp->if_softc;
1248 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
1249 ieee80211_state_name[vap->iv_state],
1250 ieee80211_state_name[nstate], sc->flags));
1252 IEEE80211_UNLOCK(ic);
1254 if (nstate == IEEE80211_S_SCAN && vap->iv_state != IEEE80211_S_INIT) {
1256 * On !INIT -> SCAN transitions, we need to clear any possible
1257 * knowledge about associations.
1259 error = wpi_config(sc);
1261 device_printf(sc->sc_dev,
1262 "%s: device config failed, error %d\n",
1266 if (nstate == IEEE80211_S_AUTH ||
1267 (nstate == IEEE80211_S_ASSOC && vap->iv_state == IEEE80211_S_RUN)) {
1269 * The node must be registered in the firmware before auth.
1270 * Also the associd must be cleared on RUN -> ASSOC
1273 error = wpi_auth(sc, vap);
1275 device_printf(sc->sc_dev,
1276 "%s: could not move to auth state, error %d\n",
1280 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1281 error = wpi_run(sc, vap);
1283 device_printf(sc->sc_dev,
1284 "%s: could not move to run state, error %d\n",
1288 if (nstate == IEEE80211_S_RUN) {
1289 /* RUN -> RUN transition; just restart the timers */
1290 wpi_calib_timeout(sc);
1291 /* XXX split out rate control timer */
1295 return wvp->newstate(vap, nstate, arg);
1299 * Grab exclusive access to NIC memory.
1302 wpi_mem_lock(struct wpi_softc *sc)
1307 tmp = WPI_READ(sc, WPI_GPIO_CTL);
1308 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
1310 /* spin until we actually get the lock */
1311 for (ntries = 0; ntries < 100; ntries++) {
1312 if ((WPI_READ(sc, WPI_GPIO_CTL) &
1313 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
1318 device_printf(sc->sc_dev, "could not lock memory\n");
1322 * Release lock on NIC memory.
1325 wpi_mem_unlock(struct wpi_softc *sc)
1327 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
1328 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
1332 wpi_mem_read(struct wpi_softc *sc, uint16_t addr)
1334 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
1335 return WPI_READ(sc, WPI_READ_MEM_DATA);
1339 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data)
1341 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
1342 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
1346 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr,
1347 const uint32_t *data, int wlen)
1349 for (; wlen > 0; wlen--, data++, addr+=4)
1350 wpi_mem_write(sc, addr, *data);
1354 * Read data from the EEPROM. We access EEPROM through the MAC instead of
1355 * using the traditional bit-bang method. Data is read up until len bytes have
1359 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len)
1363 uint8_t *out = data;
1367 for (; len > 0; len -= 2, addr++) {
1368 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
1370 for (ntries = 0; ntries < 10; ntries++) {
1371 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
1377 device_printf(sc->sc_dev, "could not read EEPROM\n");
1392 * The firmware text and data segments are transferred to the NIC using DMA.
1393 * The driver just copies the firmware into DMA-safe memory and tells the NIC
1394 * where to find it. Once the NIC has copied the firmware into its internal
1395 * memory, we can free our local copy in the driver.
1398 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size)
1402 DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size));
1404 size /= sizeof(uint32_t);
1408 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE,
1409 (const uint32_t *)fw, size);
1411 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
1412 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
1413 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
1416 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
1418 /* wait while the adapter is busy copying the firmware */
1419 for (error = 0, ntries = 0; ntries < 1000; ntries++) {
1420 uint32_t status = WPI_READ(sc, WPI_TX_STATUS);
1421 DPRINTFN(WPI_DEBUG_HW,
1422 ("firmware status=0x%x, val=0x%x, result=0x%x\n", status,
1423 WPI_TX_IDLE(6), status & WPI_TX_IDLE(6)));
1424 if (status & WPI_TX_IDLE(6)) {
1425 DPRINTFN(WPI_DEBUG_HW,
1426 ("Status Match! - ntries = %d\n", ntries));
1431 if (ntries == 1000) {
1432 device_printf(sc->sc_dev, "timeout transferring firmware\n");
1436 /* start the microcode executing */
1437 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE);
1445 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1446 struct wpi_rx_data *data)
1448 struct ifnet *ifp = sc->sc_ifp;
1449 struct ieee80211com *ic = ifp->if_l2com;
1450 struct wpi_rx_ring *ring = &sc->rxq;
1451 struct wpi_rx_stat *stat;
1452 struct wpi_rx_head *head;
1453 struct wpi_rx_tail *tail;
1454 struct ieee80211_node *ni;
1455 struct mbuf *m, *mnew;
1459 stat = (struct wpi_rx_stat *)(desc + 1);
1461 if (stat->len > WPI_STAT_MAXLEN) {
1462 device_printf(sc->sc_dev, "invalid rx statistic header\n");
1467 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1468 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1469 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len));
1471 DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d "
1472 "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len),
1473 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan,
1474 (uintmax_t)le64toh(tail->tstamp)));
1476 /* discard Rx frames with bad CRC early */
1477 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1478 DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__,
1479 le32toh(tail->flags)));
1483 if (le16toh(head->len) < sizeof (struct ieee80211_frame)) {
1484 DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__,
1485 le16toh(head->len)));
1490 /* XXX don't need mbuf, just dma buffer */
1491 mnew = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1493 DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n",
1498 bus_dmamap_unload(ring->data_dmat, data->map);
1500 error = bus_dmamap_load(ring->data_dmat, data->map,
1501 mtod(mnew, caddr_t), MJUMPAGESIZE,
1502 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1503 if (error != 0 && error != EFBIG) {
1504 device_printf(sc->sc_dev,
1505 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1510 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1512 /* finalize mbuf and swap in new one */
1514 m->m_pkthdr.rcvif = ifp;
1515 m->m_data = (caddr_t)(head + 1);
1516 m->m_pkthdr.len = m->m_len = le16toh(head->len);
1519 /* update Rx descriptor */
1520 ring->desc[ring->cur] = htole32(paddr);
1522 if (ieee80211_radiotap_active(ic)) {
1523 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1527 htole16(ic->ic_channels[head->chan].ic_freq);
1528 tap->wr_chan_flags =
1529 htole16(ic->ic_channels[head->chan].ic_flags);
1530 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
1531 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise);
1532 tap->wr_tsft = tail->tstamp;
1533 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1534 switch (head->rate) {
1536 case 10: tap->wr_rate = 2; break;
1537 case 20: tap->wr_rate = 4; break;
1538 case 55: tap->wr_rate = 11; break;
1539 case 110: tap->wr_rate = 22; break;
1541 case 0xd: tap->wr_rate = 12; break;
1542 case 0xf: tap->wr_rate = 18; break;
1543 case 0x5: tap->wr_rate = 24; break;
1544 case 0x7: tap->wr_rate = 36; break;
1545 case 0x9: tap->wr_rate = 48; break;
1546 case 0xb: tap->wr_rate = 72; break;
1547 case 0x1: tap->wr_rate = 96; break;
1548 case 0x3: tap->wr_rate = 108; break;
1549 /* unknown rate: should not happen */
1550 default: tap->wr_rate = 0;
1552 if (le16toh(head->flags) & 0x4)
1553 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1558 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1560 (void) ieee80211_input(ni, m, stat->rssi, 0);
1561 ieee80211_free_node(ni);
1563 (void) ieee80211_input_all(ic, m, stat->rssi, 0);
1569 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1571 struct ifnet *ifp = sc->sc_ifp;
1572 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1573 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1574 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1575 struct ieee80211_node *ni = txdata->ni;
1576 struct ieee80211vap *vap = ni->ni_vap;
1579 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1580 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1581 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1582 le32toh(stat->status)));
1585 * Update rate control statistics for the node.
1586 * XXX we should not count mgmt frames since they're always sent at
1587 * the lowest available bit-rate.
1588 * XXX frames w/o ACK shouldn't be used either
1590 if (stat->ntries > 0) {
1591 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1594 ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS,
1597 /* XXX oerrors should only count errors !maxtries */
1598 if ((le32toh(stat->status) & 0xff) != 1)
1603 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);
1604 bus_dmamap_unload(ring->data_dmat, txdata->map);
1605 /* XXX handle M_TXCB? */
1608 ieee80211_free_node(txdata->ni);
1613 sc->sc_tx_timer = 0;
1614 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1615 wpi_start_locked(ifp);
1619 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1621 struct wpi_tx_ring *ring = &sc->cmdq;
1622 struct wpi_tx_data *data;
1624 DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x "
1625 "type=%s len=%d\n", desc->qid, desc->idx,
1626 desc->flags, wpi_cmd_str(desc->type),
1627 le32toh(desc->len)));
1629 if ((desc->qid & 7) != 4)
1630 return; /* not a command ack */
1632 data = &ring->data[desc->idx];
1634 /* if the command was mapped in a mbuf, free it */
1635 if (data->m != NULL) {
1636 bus_dmamap_unload(ring->data_dmat, data->map);
1641 sc->flags &= ~WPI_FLAG_BUSY;
1642 wakeup(&ring->cmd[desc->idx]);
1646 wpi_notif_intr(struct wpi_softc *sc)
1648 struct ifnet *ifp = sc->sc_ifp;
1649 struct ieee80211com *ic = ifp->if_l2com;
1650 struct wpi_rx_desc *desc;
1651 struct wpi_rx_data *data;
1654 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1655 BUS_DMASYNC_POSTREAD);
1657 hw = le32toh(sc->shared->next);
1658 while (sc->rxq.cur != hw) {
1659 data = &sc->rxq.data[sc->rxq.cur];
1661 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1662 BUS_DMASYNC_POSTREAD);
1663 desc = (void *)data->m->m_ext.ext_buf;
1665 DPRINTFN(WPI_DEBUG_NOTIFY,
1666 ("notify qid=%x idx=%d flags=%x type=%d len=%d\n",
1671 le32toh(desc->len)));
1673 if (!(desc->qid & 0x80)) /* reply to a command */
1674 wpi_cmd_intr(sc, desc);
1676 switch (desc->type) {
1678 /* a 802.11 frame was received */
1679 wpi_rx_intr(sc, desc, data);
1683 /* a 802.11 frame has been transmitted */
1684 wpi_tx_intr(sc, desc);
1689 struct wpi_ucode_info *uc =
1690 (struct wpi_ucode_info *)(desc + 1);
1692 /* the microcontroller is ready */
1693 DPRINTF(("microcode alive notification version %x "
1694 "alive %x\n", le32toh(uc->version),
1695 le32toh(uc->valid)));
1697 if (le32toh(uc->valid) != 1) {
1698 device_printf(sc->sc_dev,
1699 "microcontroller initialization failed\n");
1700 wpi_stop_locked(sc);
1704 case WPI_STATE_CHANGED:
1706 uint32_t *status = (uint32_t *)(desc + 1);
1708 /* enabled/disabled notification */
1709 DPRINTF(("state changed to %x\n", le32toh(*status)));
1711 if (le32toh(*status) & 1) {
1712 device_printf(sc->sc_dev,
1713 "Radio transmitter is switched off\n");
1714 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
1715 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1716 /* Disable firmware commands */
1717 WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD);
1721 case WPI_START_SCAN:
1724 struct wpi_start_scan *scan =
1725 (struct wpi_start_scan *)(desc + 1);
1728 DPRINTFN(WPI_DEBUG_SCANNING,
1729 ("scanning channel %d status %x\n",
1730 scan->chan, le32toh(scan->status)));
1736 struct wpi_stop_scan *scan =
1737 (struct wpi_stop_scan *)(desc + 1);
1739 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1741 DPRINTFN(WPI_DEBUG_SCANNING,
1742 ("scan finished nchan=%d status=%d chan=%d\n",
1743 scan->nchan, scan->status, scan->chan));
1745 sc->sc_scan_timer = 0;
1746 ieee80211_scan_next(vap);
1749 case WPI_MISSED_BEACON:
1751 struct wpi_missed_beacon *beacon =
1752 (struct wpi_missed_beacon *)(desc + 1);
1753 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1755 if (le32toh(beacon->consecutive) >=
1756 vap->iv_bmissthreshold) {
1757 DPRINTF(("Beacon miss: %u >= %u\n",
1758 le32toh(beacon->consecutive),
1759 vap->iv_bmissthreshold));
1760 ieee80211_beacon_miss(ic);
1766 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
1769 /* tell the firmware what we have processed */
1770 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
1771 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7);
1777 struct wpi_softc *sc = arg;
1782 r = WPI_READ(sc, WPI_INTR);
1783 if (r == 0 || r == 0xffffffff) {
1788 /* disable interrupts */
1789 WPI_WRITE(sc, WPI_MASK, 0);
1790 /* ack interrupts */
1791 WPI_WRITE(sc, WPI_INTR, r);
1793 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
1794 struct ifnet *ifp = sc->sc_ifp;
1795 struct ieee80211com *ic = ifp->if_l2com;
1796 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1798 device_printf(sc->sc_dev, "fatal firmware error\n");
1799 DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" :
1800 "(Hardware Error)"));
1802 ieee80211_cancel_scan(vap);
1803 ieee80211_runtask(ic, &sc->sc_restarttask);
1804 sc->flags &= ~WPI_FLAG_BUSY;
1809 if (r & WPI_RX_INTR)
1812 if (r & WPI_ALIVE_INTR) /* firmware initialized */
1815 /* re-enable interrupts */
1816 if (sc->sc_ifp->if_flags & IFF_UP)
1817 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
1823 wpi_plcp_signal(int rate)
1826 /* CCK rates (returned values are device-dependent) */
1830 case 22: return 110;
1832 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1833 /* R1-R4 (ral/ural is R4-R1) */
1834 case 12: return 0xd;
1835 case 18: return 0xf;
1836 case 24: return 0x5;
1837 case 36: return 0x7;
1838 case 48: return 0x9;
1839 case 72: return 0xb;
1840 case 96: return 0x1;
1841 case 108: return 0x3;
1843 /* unsupported rates (should not get there) */
1848 /* quickly determine if a given rate is CCK or OFDM */
1849 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1852 * Construct the data packet for a transmit buffer and acutally put
1853 * the buffer onto the transmit ring, kicking the card to process the
1857 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1860 struct ieee80211vap *vap = ni->ni_vap;
1861 struct ifnet *ifp = sc->sc_ifp;
1862 struct ieee80211com *ic = ifp->if_l2com;
1863 const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
1864 struct wpi_tx_ring *ring = &sc->txq[ac];
1865 struct wpi_tx_desc *desc;
1866 struct wpi_tx_data *data;
1867 struct wpi_tx_cmd *cmd;
1868 struct wpi_cmd_data *tx;
1869 struct ieee80211_frame *wh;
1870 const struct ieee80211_txparam *tp;
1871 struct ieee80211_key *k;
1873 int i, error, nsegs, rate, hdrlen, ismcast;
1874 bus_dma_segment_t segs[WPI_MAX_SCATTER];
1876 desc = &ring->desc[ring->cur];
1877 data = &ring->data[ring->cur];
1879 wh = mtod(m0, struct ieee80211_frame *);
1881 hdrlen = ieee80211_hdrsize(wh);
1882 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1884 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1885 k = ieee80211_crypto_encap(ni, m0);
1890 /* packet header may have moved, reset our local pointer */
1891 wh = mtod(m0, struct ieee80211_frame *);
1894 cmd = &ring->cmd[ring->cur];
1895 cmd->code = WPI_CMD_TX_DATA;
1897 cmd->qid = ring->qid;
1898 cmd->idx = ring->cur;
1900 tx = (struct wpi_cmd_data *)cmd->data;
1901 tx->flags = htole32(WPI_TX_AUTO_SEQ);
1902 tx->timeout = htole16(0);
1903 tx->ofdm_mask = 0xff;
1904 tx->cck_mask = 0x0f;
1905 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
1906 tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS;
1907 tx->len = htole16(m0->m_pkthdr.len);
1910 if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 ||
1911 !cap->cap_wmeParams[ac].wmep_noackPolicy)
1912 tx->flags |= htole32(WPI_TX_NEED_ACK);
1913 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
1914 tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP);
1919 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1920 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
1921 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1922 /* tell h/w to set timestamp in probe responses */
1923 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1924 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP);
1925 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
1926 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
1927 tx->timeout = htole16(3);
1929 tx->timeout = htole16(2);
1930 rate = tp->mgmtrate;
1931 } else if (ismcast) {
1932 rate = tp->mcastrate;
1933 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1934 rate = tp->ucastrate;
1936 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1937 rate = ni->ni_txrate;
1939 tx->rate = wpi_plcp_signal(rate);
1941 /* be very persistant at sending frames out */
1943 tx->data_ntries = tp->maxretry;
1945 tx->data_ntries = 15; /* XXX way too high */
1948 if (ieee80211_radiotap_active_vap(vap)) {
1949 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
1951 tap->wt_rate = rate;
1952 tap->wt_hwqueue = ac;
1953 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED)
1954 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1956 ieee80211_radiotap_tx(vap, m0);
1959 /* save and trim IEEE802.11 header */
1960 m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh);
1963 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs,
1964 &nsegs, BUS_DMA_NOWAIT);
1965 if (error != 0 && error != EFBIG) {
1966 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1972 /* XXX use m_collapse */
1973 mnew = m_defrag(m0, M_NOWAIT);
1975 device_printf(sc->sc_dev,
1976 "could not defragment mbuf\n");
1982 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
1983 m0, segs, &nsegs, BUS_DMA_NOWAIT);
1985 device_printf(sc->sc_dev,
1986 "could not map mbuf (error %d)\n", error);
1995 DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n",
1996 ring->qid, ring->cur, m0->m_pkthdr.len, nsegs));
1998 /* first scatter/gather segment is used by the tx data command */
1999 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
2001 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2002 ring->cur * sizeof (struct wpi_tx_cmd));
2003 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data));
2004 for (i = 1; i <= nsegs; i++) {
2005 desc->segs[i].addr = htole32(segs[i - 1].ds_addr);
2006 desc->segs[i].len = htole32(segs[i - 1].ds_len);
2009 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2010 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2011 BUS_DMASYNC_PREWRITE);
2016 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2017 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2023 * Process data waiting to be sent on the IFNET output queue
2026 wpi_start(struct ifnet *ifp)
2028 struct wpi_softc *sc = ifp->if_softc;
2031 wpi_start_locked(ifp);
2036 wpi_start_locked(struct ifnet *ifp)
2038 struct wpi_softc *sc = ifp->if_softc;
2039 struct ieee80211_node *ni;
2043 WPI_LOCK_ASSERT(sc);
2045 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2049 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2052 ac = M_WME_GETAC(m);
2053 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
2054 /* there is no place left in this ring */
2055 IFQ_DRV_PREPEND(&ifp->if_snd, m);
2056 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2059 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
2060 if (wpi_tx_data(sc, m, ni, ac) != 0) {
2061 ieee80211_free_node(ni);
2065 sc->sc_tx_timer = 5;
2070 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2071 const struct ieee80211_bpf_params *params)
2073 struct ieee80211com *ic = ni->ni_ic;
2074 struct ifnet *ifp = ic->ic_ifp;
2075 struct wpi_softc *sc = ifp->if_softc;
2077 /* prevent management frames from being sent if we're not ready */
2078 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2080 ieee80211_free_node(ni);
2085 /* management frames go into ring 0 */
2086 if (sc->txq[0].queued > sc->txq[0].count - 8) {
2087 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2090 ieee80211_free_node(ni);
2091 return ENOBUFS; /* XXX */
2095 if (wpi_tx_data(sc, m, ni, 0) != 0)
2097 sc->sc_tx_timer = 5;
2098 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
2105 ieee80211_free_node(ni);
2106 return EIO; /* XXX */
2110 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2112 struct wpi_softc *sc = ifp->if_softc;
2113 struct ieee80211com *ic = ifp->if_l2com;
2114 struct ifreq *ifr = (struct ifreq *) data;
2115 int error = 0, startall = 0;
2120 if ((ifp->if_flags & IFF_UP)) {
2121 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2122 wpi_init_locked(sc, 0);
2125 } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) ||
2126 (sc->flags & WPI_FLAG_HW_RADIO_OFF))
2127 wpi_stop_locked(sc);
2130 ieee80211_start_all(ic);
2133 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2136 error = ether_ioctl(ifp, cmd, data);
2146 * Extract various information from EEPROM.
2149 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2153 /* read the hardware capabilities, revision and SKU type */
2154 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1);
2155 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2);
2156 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1);
2158 /* read the regulatory domain */
2159 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4);
2161 /* read in the hw MAC address */
2162 wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6);
2164 /* read the list of authorized channels */
2165 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
2166 wpi_read_eeprom_channels(sc,i);
2168 /* read the power level calibration info for each group */
2169 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
2170 wpi_read_eeprom_group(sc,i);
2174 * Send a command to the firmware.
2177 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async)
2179 struct wpi_tx_ring *ring = &sc->cmdq;
2180 struct wpi_tx_desc *desc;
2181 struct wpi_tx_cmd *cmd;
2185 WPI_LOCK_ASSERT(sc);
2189 DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size,
2192 if (sc->flags & WPI_FLAG_BUSY) {
2193 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
2197 sc->flags|= WPI_FLAG_BUSY;
2199 KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes",
2202 desc = &ring->desc[ring->cur];
2203 cmd = &ring->cmd[ring->cur];
2207 cmd->qid = ring->qid;
2208 cmd->idx = ring->cur;
2209 memcpy(cmd->data, buf, size);
2211 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
2212 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2213 ring->cur * sizeof (struct wpi_tx_cmd));
2214 desc->segs[0].len = htole32(4 + size);
2217 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2218 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2221 sc->flags &= ~ WPI_FLAG_BUSY;
2225 return msleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
2229 wpi_wme_update(struct ieee80211com *ic)
2231 #define WPI_EXP2(v) htole16((1 << (v)) - 1)
2232 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
2233 struct wpi_softc *sc = ic->ic_ifp->if_softc;
2234 const struct wmeParams *wmep;
2235 struct wpi_wme_setup wme;
2238 /* don't override default WME values if WME is not actually enabled */
2239 if (!(ic->ic_flags & IEEE80211_F_WME))
2243 for (ac = 0; ac < WME_NUM_AC; ac++) {
2244 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
2245 wme.ac[ac].aifsn = wmep->wmep_aifsn;
2246 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin);
2247 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax);
2248 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit);
2250 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
2251 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin,
2252 wme.ac[ac].cwmax, wme.ac[ac].txop));
2254 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1);
2260 * Configure h/w multi-rate retries.
2263 wpi_mrr_setup(struct wpi_softc *sc)
2265 struct ifnet *ifp = sc->sc_ifp;
2266 struct ieee80211com *ic = ifp->if_l2com;
2267 struct wpi_mrr_setup mrr;
2270 memset(&mrr, 0, sizeof (struct wpi_mrr_setup));
2272 /* CCK rates (not used with 802.11a) */
2273 for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
2274 mrr.rates[i].flags = 0;
2275 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2276 /* fallback to the immediate lower CCK rate (if any) */
2277 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
2278 /* try one time at this rate before falling back to "next" */
2279 mrr.rates[i].ntries = 1;
2282 /* OFDM rates (not used with 802.11b) */
2283 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
2284 mrr.rates[i].flags = 0;
2285 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2286 /* fallback to the immediate lower OFDM rate (if any) */
2287 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */
2288 mrr.rates[i].next = (i == WPI_OFDM6) ?
2289 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
2290 WPI_OFDM6 : WPI_CCK2) :
2292 /* try one time at this rate before falling back to "next" */
2293 mrr.rates[i].ntries = 1;
2296 /* setup MRR for control frames */
2297 mrr.which = WPI_MRR_CTL;
2298 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2300 device_printf(sc->sc_dev,
2301 "could not setup MRR for control frames\n");
2305 /* setup MRR for data frames */
2306 mrr.which = WPI_MRR_DATA;
2307 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2309 device_printf(sc->sc_dev,
2310 "could not setup MRR for data frames\n");
2318 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
2320 struct wpi_cmd_led led;
2323 led.unit = htole32(100000); /* on/off in unit of 100ms */
2327 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
2331 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni)
2333 struct wpi_cmd_tsf tsf;
2336 memset(&tsf, 0, sizeof tsf);
2337 memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8);
2338 tsf.bintval = htole16(ni->ni_intval);
2339 tsf.lintval = htole16(10);
2341 /* compute remaining time until next beacon */
2342 val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */
2343 mod = le64toh(tsf.tstamp) % val;
2344 tsf.binitval = htole32((uint32_t)(val - mod));
2346 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0)
2347 device_printf(sc->sc_dev, "could not enable TSF\n");
2352 * Build a beacon frame that the firmware will broadcast periodically in
2353 * IBSS or HostAP modes.
2356 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
2358 struct ifnet *ifp = sc->sc_ifp;
2359 struct ieee80211com *ic = ifp->if_l2com;
2360 struct wpi_tx_ring *ring = &sc->cmdq;
2361 struct wpi_tx_desc *desc;
2362 struct wpi_tx_data *data;
2363 struct wpi_tx_cmd *cmd;
2364 struct wpi_cmd_beacon *bcn;
2365 struct ieee80211_beacon_offsets bo;
2367 bus_addr_t physaddr;
2370 desc = &ring->desc[ring->cur];
2371 data = &ring->data[ring->cur];
2373 m0 = ieee80211_beacon_alloc(ic, ni, &bo);
2375 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2379 cmd = &ring->cmd[ring->cur];
2380 cmd->code = WPI_CMD_SET_BEACON;
2382 cmd->qid = ring->qid;
2383 cmd->idx = ring->cur;
2385 bcn = (struct wpi_cmd_beacon *)cmd->data;
2386 memset(bcn, 0, sizeof (struct wpi_cmd_beacon));
2387 bcn->id = WPI_ID_BROADCAST;
2388 bcn->ofdm_mask = 0xff;
2389 bcn->cck_mask = 0x0f;
2390 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE);
2391 bcn->len = htole16(m0->m_pkthdr.len);
2392 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2393 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2394 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
2396 /* save and trim IEEE802.11 header */
2397 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh);
2398 m_adj(m0, sizeof (struct ieee80211_frame));
2400 /* assume beacon frame is contiguous */
2401 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *),
2402 m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0);
2404 device_printf(sc->sc_dev, "could not map beacon\n");
2411 /* first scatter/gather segment is used by the beacon command */
2412 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
2413 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2414 ring->cur * sizeof (struct wpi_tx_cmd));
2415 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon));
2416 desc->segs[1].addr = htole32(physaddr);
2417 desc->segs[1].len = htole32(m0->m_pkthdr.len);
2420 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2421 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2428 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
2430 struct ieee80211com *ic = vap->iv_ic;
2431 struct ieee80211_node *ni = vap->iv_bss;
2432 struct wpi_node_info node;
2436 /* update adapter's configuration */
2437 sc->config.associd = 0;
2438 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2439 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2440 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2441 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2442 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2445 sc->config.flags &= ~htole32(WPI_CONFIG_AUTO |
2448 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
2449 sc->config.cck_mask = 0;
2450 sc->config.ofdm_mask = 0x15;
2451 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
2452 sc->config.cck_mask = 0x03;
2453 sc->config.ofdm_mask = 0;
2455 /* XXX assume 802.11b/g */
2456 sc->config.cck_mask = 0x0f;
2457 sc->config.ofdm_mask = 0x15;
2460 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan,
2461 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask));
2462 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2463 sizeof (struct wpi_config), 1);
2465 device_printf(sc->sc_dev, "could not configure\n");
2469 /* configuration has changed, set Tx power accordingly */
2470 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) {
2471 device_printf(sc->sc_dev, "could not set Tx power\n");
2475 /* add default node */
2476 memset(&node, 0, sizeof node);
2477 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid);
2478 node.id = WPI_ID_BSS;
2479 node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2480 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2481 node.action = htole32(WPI_ACTION_SET_RATE);
2482 node.antenna = WPI_ANTENNA_BOTH;
2483 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
2485 device_printf(sc->sc_dev, "could not add BSS node\n");
2491 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
2493 struct ieee80211com *ic = vap->iv_ic;
2494 struct ieee80211_node *ni = vap->iv_bss;
2497 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
2498 /* link LED blinks while monitoring */
2499 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
2503 wpi_enable_tsf(sc, ni);
2505 /* update adapter's configuration */
2506 sc->config.associd = htole16(ni->ni_associd & ~0xc000);
2507 /* short preamble/slot time are negotiated when associating */
2508 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE |
2510 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2511 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT);
2512 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2513 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE);
2514 sc->config.filter |= htole32(WPI_FILTER_BSS);
2516 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
2518 DPRINTF(("config chan %d flags %x\n", sc->config.chan,
2520 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct
2523 device_printf(sc->sc_dev, "could not update configuration\n");
2527 error = wpi_set_txpower(sc, ni->ni_chan, 1);
2529 device_printf(sc->sc_dev, "could set txpower\n");
2533 /* link LED always on while associated */
2534 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
2536 /* start automatic rate control timer */
2537 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
2543 * Send a scan request to the firmware. Since this command is huge, we map it
2544 * into a mbufcluster instead of using the pre-allocated set of commands. Note,
2545 * much of this code is similar to that in wpi_cmd but because we must manually
2546 * construct the probe & channels, we duplicate what's needed here. XXX In the
2547 * future, this function should be modified to use wpi_cmd to help cleanup the
2551 wpi_scan(struct wpi_softc *sc)
2553 struct ifnet *ifp = sc->sc_ifp;
2554 struct ieee80211com *ic = ifp->if_l2com;
2555 struct ieee80211_scan_state *ss = ic->ic_scan;
2556 struct wpi_tx_ring *ring = &sc->cmdq;
2557 struct wpi_tx_desc *desc;
2558 struct wpi_tx_data *data;
2559 struct wpi_tx_cmd *cmd;
2560 struct wpi_scan_hdr *hdr;
2561 struct wpi_scan_chan *chan;
2562 struct ieee80211_frame *wh;
2563 struct ieee80211_rateset *rs;
2564 struct ieee80211_channel *c;
2565 enum ieee80211_phymode mode;
2567 int nrates, pktlen, error, i, nssid;
2568 bus_addr_t physaddr;
2570 desc = &ring->desc[ring->cur];
2571 data = &ring->data[ring->cur];
2573 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
2574 if (data->m == NULL) {
2575 device_printf(sc->sc_dev,
2576 "could not allocate mbuf for scan command\n");
2580 cmd = mtod(data->m, struct wpi_tx_cmd *);
2581 cmd->code = WPI_CMD_SCAN;
2583 cmd->qid = ring->qid;
2584 cmd->idx = ring->cur;
2586 hdr = (struct wpi_scan_hdr *)cmd->data;
2587 memset(hdr, 0, sizeof(struct wpi_scan_hdr));
2590 * Move to the next channel if no packets are received within 5 msecs
2591 * after sending the probe request (this helps to reduce the duration
2594 hdr->quiet = htole16(5);
2595 hdr->threshold = htole16(1);
2597 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
2598 /* send probe requests at 6Mbps */
2599 hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6];
2601 /* Enable crc checking */
2602 hdr->promotion = htole16(1);
2604 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO);
2605 /* send probe requests at 1Mbps */
2606 hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1];
2608 hdr->tx.id = WPI_ID_BROADCAST;
2609 hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE);
2610 hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ);
2612 memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids));
2613 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
2614 for (i = 0; i < nssid; i++) {
2615 hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID;
2616 hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32);
2617 memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid,
2618 hdr->scan_essids[i].esslen);
2620 if (wpi_debug & WPI_DEBUG_SCANNING) {
2621 printf("Scanning Essid: ");
2622 ieee80211_print_essid(hdr->scan_essids[i].essid,
2623 hdr->scan_essids[i].esslen);
2630 * Build a probe request frame. Most of the following code is a
2631 * copy & paste of what is done in net80211.
2633 wh = (struct ieee80211_frame *)&hdr->scan_essids[4];
2634 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2635 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2636 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
2637 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
2638 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
2639 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
2640 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
2641 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
2643 frm = (uint8_t *)(wh + 1);
2645 /* add essid IE, the hardware will fill this in for us */
2646 *frm++ = IEEE80211_ELEMID_SSID;
2649 mode = ieee80211_chan2mode(ic->ic_curchan);
2650 rs = &ic->ic_sup_rates[mode];
2652 /* add supported rates IE */
2653 *frm++ = IEEE80211_ELEMID_RATES;
2654 nrates = rs->rs_nrates;
2655 if (nrates > IEEE80211_RATE_SIZE)
2656 nrates = IEEE80211_RATE_SIZE;
2658 memcpy(frm, rs->rs_rates, nrates);
2661 /* add supported xrates IE */
2662 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
2663 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
2664 *frm++ = IEEE80211_ELEMID_XRATES;
2666 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
2670 /* setup length of probe request */
2671 hdr->tx.len = htole16(frm - (uint8_t *)wh);
2674 * Construct information about the channel that we
2675 * want to scan. The firmware expects this to be directly
2676 * after the scan probe request
2679 chan = (struct wpi_scan_chan *)frm;
2680 chan->chan = ieee80211_chan2ieee(ic, c);
2682 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2683 chan->flags |= WPI_CHAN_ACTIVE;
2685 chan->flags |= WPI_CHAN_DIRECT;
2687 chan->gain_dsp = 0x6e; /* Default level */
2688 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2689 chan->active = htole16(10);
2690 chan->passive = htole16(ss->ss_maxdwell);
2691 chan->gain_radio = 0x3b;
2693 chan->active = htole16(20);
2694 chan->passive = htole16(ss->ss_maxdwell);
2695 chan->gain_radio = 0x28;
2698 DPRINTFN(WPI_DEBUG_SCANNING,
2699 ("Scanning %u Passive: %d\n",
2701 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2706 frm += sizeof (struct wpi_scan_chan);
2708 // XXX All Channels....
2709 for (c = &ic->ic_channels[1];
2710 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) {
2711 if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags)
2714 chan->chan = ieee80211_chan2ieee(ic, c);
2716 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2717 chan->flags |= WPI_CHAN_ACTIVE;
2718 if (ic->ic_des_ssid[0].len != 0)
2719 chan->flags |= WPI_CHAN_DIRECT;
2721 chan->gain_dsp = 0x6e; /* Default level */
2722 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2723 chan->active = htole16(10);
2724 chan->passive = htole16(110);
2725 chan->gain_radio = 0x3b;
2727 chan->active = htole16(20);
2728 chan->passive = htole16(120);
2729 chan->gain_radio = 0x28;
2732 DPRINTFN(WPI_DEBUG_SCANNING,
2733 ("Scanning %u Passive: %d\n",
2735 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2740 frm += sizeof (struct wpi_scan_chan);
2744 hdr->len = htole16(frm - (uint8_t *)hdr);
2745 pktlen = frm - (uint8_t *)cmd;
2747 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen,
2748 wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT);
2750 device_printf(sc->sc_dev, "could not map scan command\n");
2756 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);
2757 desc->segs[0].addr = htole32(physaddr);
2758 desc->segs[0].len = htole32(pktlen);
2760 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2761 BUS_DMASYNC_PREWRITE);
2762 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2765 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2766 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2768 sc->sc_scan_timer = 5;
2769 return 0; /* will be notified async. of failure/success */
2773 * Configure the card to listen to a particular channel, this transisions the
2774 * card in to being able to receive frames from remote devices.
2777 wpi_config(struct wpi_softc *sc)
2779 struct ifnet *ifp = sc->sc_ifp;
2780 struct ieee80211com *ic = ifp->if_l2com;
2781 struct wpi_power power;
2782 struct wpi_bluetooth bluetooth;
2783 struct wpi_node_info node;
2786 /* set power mode */
2787 memset(&power, 0, sizeof power);
2788 power.flags = htole32(WPI_POWER_CAM|0x8);
2789 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2791 device_printf(sc->sc_dev, "could not set power mode\n");
2795 /* configure bluetooth coexistence */
2796 memset(&bluetooth, 0, sizeof bluetooth);
2797 bluetooth.flags = 3;
2798 bluetooth.lead = 0xaa;
2800 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth,
2803 device_printf(sc->sc_dev,
2804 "could not configure bluetooth coexistence\n");
2808 /* configure adapter */
2809 memset(&sc->config, 0, sizeof (struct wpi_config));
2810 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp));
2811 /*set default channel*/
2812 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan));
2813 sc->config.flags = htole32(WPI_CONFIG_TSF);
2814 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2815 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2818 sc->config.filter = 0;
2819 switch (ic->ic_opmode) {
2820 case IEEE80211_M_STA:
2821 case IEEE80211_M_WDS: /* No know setup, use STA for now */
2822 sc->config.mode = WPI_MODE_STA;
2823 sc->config.filter |= htole32(WPI_FILTER_MULTICAST);
2825 case IEEE80211_M_IBSS:
2826 case IEEE80211_M_AHDEMO:
2827 sc->config.mode = WPI_MODE_IBSS;
2828 sc->config.filter |= htole32(WPI_FILTER_BEACON |
2829 WPI_FILTER_MULTICAST);
2831 case IEEE80211_M_HOSTAP:
2832 sc->config.mode = WPI_MODE_HOSTAP;
2834 case IEEE80211_M_MONITOR:
2835 sc->config.mode = WPI_MODE_MONITOR;
2836 sc->config.filter |= htole32(WPI_FILTER_MULTICAST |
2837 WPI_FILTER_CTL | WPI_FILTER_PROMISC);
2840 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2843 sc->config.cck_mask = 0x0f; /* not yet negotiated */
2844 sc->config.ofdm_mask = 0xff; /* not yet negotiated */
2845 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2846 sizeof (struct wpi_config), 0);
2848 device_printf(sc->sc_dev, "configure command failed\n");
2852 /* configuration has changed, set Tx power accordingly */
2853 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) {
2854 device_printf(sc->sc_dev, "could not set Tx power\n");
2858 /* add broadcast node */
2859 memset(&node, 0, sizeof node);
2860 IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr);
2861 node.id = WPI_ID_BROADCAST;
2862 node.rate = wpi_plcp_signal(2);
2863 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0);
2865 device_printf(sc->sc_dev, "could not add broadcast node\n");
2869 /* Setup rate scalling */
2870 error = wpi_mrr_setup(sc);
2872 device_printf(sc->sc_dev, "could not setup MRR\n");
2880 wpi_stop_master(struct wpi_softc *sc)
2885 DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n"));
2887 tmp = WPI_READ(sc, WPI_RESET);
2888 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET);
2890 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2891 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
2892 return; /* already asleep */
2894 for (ntries = 0; ntries < 100; ntries++) {
2895 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
2899 if (ntries == 100) {
2900 device_printf(sc->sc_dev, "timeout waiting for master\n");
2905 wpi_power_up(struct wpi_softc *sc)
2911 tmp = wpi_mem_read(sc, WPI_MEM_POWER);
2912 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
2915 for (ntries = 0; ntries < 5000; ntries++) {
2916 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
2920 if (ntries == 5000) {
2921 device_printf(sc->sc_dev,
2922 "timeout waiting for NIC to power up\n");
2929 wpi_reset(struct wpi_softc *sc)
2934 DPRINTFN(WPI_DEBUG_HW,
2935 ("Resetting the card - clearing any uploaded firmware\n"));
2937 /* clear any pending interrupts */
2938 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
2940 tmp = WPI_READ(sc, WPI_PLL_CTL);
2941 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
2943 tmp = WPI_READ(sc, WPI_CHICKEN);
2944 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
2946 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2947 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
2949 /* wait for clock stabilization */
2950 for (ntries = 0; ntries < 25000; ntries++) {
2951 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
2955 if (ntries == 25000) {
2956 device_printf(sc->sc_dev,
2957 "timeout waiting for clock stabilization\n");
2961 /* initialize EEPROM */
2962 tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
2964 if ((tmp & WPI_EEPROM_VERSION) == 0) {
2965 device_printf(sc->sc_dev, "EEPROM not found\n");
2968 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
2974 wpi_hw_config(struct wpi_softc *sc)
2978 /* voodoo from the Linux "driver".. */
2979 hw = WPI_READ(sc, WPI_HWCONFIG);
2981 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
2982 if ((rev & 0xc0) == 0x40)
2983 hw |= WPI_HW_ALM_MB;
2984 else if (!(rev & 0x80))
2985 hw |= WPI_HW_ALM_MM;
2987 if (sc->cap == 0x80)
2988 hw |= WPI_HW_SKU_MRC;
2990 hw &= ~WPI_HW_REV_D;
2991 if ((le16toh(sc->rev) & 0xf0) == 0xd0)
2995 hw |= WPI_HW_TYPE_B;
2997 WPI_WRITE(sc, WPI_HWCONFIG, hw);
3001 wpi_rfkill_resume(struct wpi_softc *sc)
3003 struct ifnet *ifp = sc->sc_ifp;
3004 struct ieee80211com *ic = ifp->if_l2com;
3005 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3008 /* enable firmware again */
3009 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3010 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3012 /* wait for thermal sensors to calibrate */
3013 for (ntries = 0; ntries < 1000; ntries++) {
3014 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3019 if (ntries == 1000) {
3020 device_printf(sc->sc_dev,
3021 "timeout waiting for thermal calibration\n");
3024 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3026 if (wpi_config(sc) != 0) {
3027 device_printf(sc->sc_dev, "device config failed\n");
3031 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3032 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3033 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3036 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3037 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
3038 ieee80211_beacon_miss(ic);
3039 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
3041 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
3043 ieee80211_scan_next(vap);
3044 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3048 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3052 wpi_init_locked(struct wpi_softc *sc, int force)
3054 struct ifnet *ifp = sc->sc_ifp;
3058 wpi_stop_locked(sc);
3059 (void)wpi_reset(sc);
3062 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
3064 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
3065 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
3068 (void)wpi_power_up(sc);
3073 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr);
3074 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr +
3075 offsetof(struct wpi_shared, next));
3076 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7);
3077 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
3082 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
3083 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
3084 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
3085 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
3086 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
3087 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
3088 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
3090 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr);
3091 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
3093 for (qid = 0; qid < 6; qid++) {
3094 WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
3095 WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
3096 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
3100 /* clear "radio off" and "disable command" bits (reversed logic) */
3101 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3102 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3103 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3105 /* clear any pending interrupts */
3106 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
3108 /* enable interrupts */
3109 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
3111 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3112 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3114 if ((wpi_load_firmware(sc)) != 0) {
3115 device_printf(sc->sc_dev,
3116 "A problem occurred loading the firmware to the driver\n");
3120 /* At this point the firmware is up and running. If the hardware
3121 * RF switch is turned off thermal calibration will fail, though
3122 * the card is still happy to continue to accept commands, catch
3123 * this case and schedule a task to watch for it to be turned on.
3126 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3130 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
3131 device_printf(sc->sc_dev,"Radio Transmitter is switched off\n");
3135 /* wait for thermal sensors to calibrate */
3136 for (ntries = 0; ntries < 1000; ntries++) {
3137 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3142 if (ntries == 1000) {
3143 device_printf(sc->sc_dev,
3144 "timeout waiting for thermal sensors calibration\n");
3147 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3149 if (wpi_config(sc) != 0) {
3150 device_printf(sc->sc_dev, "device config failed\n");
3154 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3155 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3157 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3163 struct wpi_softc *sc = arg;
3164 struct ifnet *ifp = sc->sc_ifp;
3165 struct ieee80211com *ic = ifp->if_l2com;
3168 wpi_init_locked(sc, 0);
3171 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3172 ieee80211_start_all(ic); /* start all vaps */
3176 wpi_stop_locked(struct wpi_softc *sc)
3178 struct ifnet *ifp = sc->sc_ifp;
3182 sc->sc_tx_timer = 0;
3183 sc->sc_scan_timer = 0;
3184 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
3185 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3186 callout_stop(&sc->watchdog_to);
3187 callout_stop(&sc->calib_to);
3189 /* disable interrupts */
3190 WPI_WRITE(sc, WPI_MASK, 0);
3191 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
3192 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
3193 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
3196 wpi_mem_write(sc, WPI_MEM_MODE, 0);
3199 /* reset all Tx rings */
3200 for (ac = 0; ac < 4; ac++)
3201 wpi_reset_tx_ring(sc, &sc->txq[ac]);
3202 wpi_reset_tx_ring(sc, &sc->cmdq);
3205 wpi_reset_rx_ring(sc, &sc->rxq);
3208 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
3213 wpi_stop_master(sc);
3215 tmp = WPI_READ(sc, WPI_RESET);
3216 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
3217 sc->flags &= ~WPI_FLAG_BUSY;
3221 wpi_stop(struct wpi_softc *sc)
3224 wpi_stop_locked(sc);
3229 wpi_calib_timeout(void *arg)
3231 struct wpi_softc *sc = arg;
3232 struct ifnet *ifp = sc->sc_ifp;
3233 struct ieee80211com *ic = ifp->if_l2com;
3234 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3237 if (vap->iv_state != IEEE80211_S_RUN)
3240 /* update sensor data */
3241 temp = (int)WPI_READ(sc, WPI_TEMPERATURE);
3242 DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp));
3244 wpi_power_calibration(sc, temp);
3246 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
3250 * This function is called periodically (every 60 seconds) to adjust output
3251 * power to temperature changes.
3254 wpi_power_calibration(struct wpi_softc *sc, int temp)
3256 struct ifnet *ifp = sc->sc_ifp;
3257 struct ieee80211com *ic = ifp->if_l2com;
3258 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3260 /* sanity-check read value */
3261 if (temp < -260 || temp > 25) {
3262 /* this can't be correct, ignore */
3263 DPRINTFN(WPI_DEBUG_TEMP,
3264 ("out-of-range temperature reported: %d\n", temp));
3268 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp));
3270 /* adjust Tx power if need be */
3271 if (abs(temp - sc->temp) <= 6)
3276 if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) {
3277 /* just warn, too bad for the automatic calibration... */
3278 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3283 * Read the eeprom to find out what channels are valid for the given
3284 * band and update net80211 with what we find.
3287 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
3289 struct ifnet *ifp = sc->sc_ifp;
3290 struct ieee80211com *ic = ifp->if_l2com;
3291 const struct wpi_chan_band *band = &wpi_bands[n];
3292 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND];
3293 struct ieee80211_channel *c;
3294 int chan, i, passive;
3296 wpi_read_prom_data(sc, band->addr, channels,
3297 band->nchan * sizeof (struct wpi_eeprom_chan));
3299 for (i = 0; i < band->nchan; i++) {
3300 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
3301 DPRINTFN(WPI_DEBUG_HW,
3302 ("Channel Not Valid: %d, band %d\n",
3308 chan = band->chan[i];
3309 c = &ic->ic_channels[ic->ic_nchans++];
3311 /* is active scan allowed on this channel? */
3312 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) {
3313 passive = IEEE80211_CHAN_PASSIVE;
3316 if (n == 0) { /* 2GHz band */
3318 c->ic_freq = ieee80211_ieee2mhz(chan,
3319 IEEE80211_CHAN_2GHZ);
3320 c->ic_flags = IEEE80211_CHAN_B | passive;
3322 c = &ic->ic_channels[ic->ic_nchans++];
3324 c->ic_freq = ieee80211_ieee2mhz(chan,
3325 IEEE80211_CHAN_2GHZ);
3326 c->ic_flags = IEEE80211_CHAN_G | passive;
3328 } else { /* 5GHz band */
3330 * Some 3945ABG adapters support channels 7, 8, 11
3331 * and 12 in the 2GHz *and* 5GHz bands.
3332 * Because of limitations in our net80211(9) stack,
3333 * we can't support these channels in 5GHz band.
3334 * XXX not true; just need to map to proper frequency
3340 c->ic_freq = ieee80211_ieee2mhz(chan,
3341 IEEE80211_CHAN_5GHZ);
3342 c->ic_flags = IEEE80211_CHAN_A | passive;
3345 /* save maximum allowed power for this channel */
3346 sc->maxpwr[chan] = channels[i].maxpwr;
3349 // XXX We can probably use this an get rid of maxpwr - ben 20070617
3350 ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr;
3351 //ic->ic_channels[chan].ic_minpower...
3352 //ic->ic_channels[chan].ic_maxregtxpower...
3355 DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d"
3356 " passive=%d, offset %d\n", chan, c->ic_freq,
3357 channels[i].flags, sc->maxpwr[chan],
3358 (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0,
3364 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
3366 struct wpi_power_group *group = &sc->groups[n];
3367 struct wpi_eeprom_group rgroup;
3370 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup,
3373 /* save power group information */
3374 group->chan = rgroup.chan;
3375 group->maxpwr = rgroup.maxpwr;
3376 /* temperature at which the samples were taken */
3377 group->temp = (int16_t)le16toh(rgroup.temp);
3379 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3380 group->chan, group->maxpwr, group->temp));
3382 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
3383 group->samples[i].index = rgroup.samples[i].index;
3384 group->samples[i].power = rgroup.samples[i].power;
3386 DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3387 group->samples[i].index, group->samples[i].power));
3392 * Update Tx power to match what is defined for channel `c'.
3395 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async)
3397 struct ifnet *ifp = sc->sc_ifp;
3398 struct ieee80211com *ic = ifp->if_l2com;
3399 struct wpi_power_group *group;
3400 struct wpi_cmd_txpower txpower;
3404 /* get channel number */
3405 chan = ieee80211_chan2ieee(ic, c);
3407 /* find the power group to which this channel belongs */
3408 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3409 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3410 if (chan <= group->chan)
3413 group = &sc->groups[0];
3415 memset(&txpower, 0, sizeof txpower);
3416 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1;
3417 txpower.channel = htole16(chan);
3419 /* set Tx power for all OFDM and CCK rates */
3420 for (i = 0; i <= 11 ; i++) {
3421 /* retrieve Tx power for this channel/rate combination */
3422 int idx = wpi_get_power_index(sc, group, c,
3423 wpi_ridx_to_rate[i]);
3425 txpower.rates[i].rate = wpi_ridx_to_plcp[i];
3427 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3428 txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx];
3429 txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx];
3431 txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx];
3432 txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx];
3434 DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3435 chan, wpi_ridx_to_rate[i], idx));
3438 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async);
3442 * Determine Tx power index for a given channel/rate combination.
3443 * This takes into account the regulatory information from EEPROM and the
3444 * current temperature.
3447 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3448 struct ieee80211_channel *c, int rate)
3450 /* fixed-point arithmetic division using a n-bit fractional part */
3451 #define fdivround(a, b, n) \
3452 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3454 /* linear interpolation */
3455 #define interpolate(x, x1, y1, x2, y2, n) \
3456 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3458 struct ifnet *ifp = sc->sc_ifp;
3459 struct ieee80211com *ic = ifp->if_l2com;
3460 struct wpi_power_sample *sample;
3464 /* get channel number */
3465 chan = ieee80211_chan2ieee(ic, c);
3467 /* default power is group's maximum power - 3dB */
3468 pwr = group->maxpwr / 2;
3470 /* decrease power for highest OFDM rates to reduce distortion */
3472 case 72: /* 36Mb/s */
3473 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5;
3475 case 96: /* 48Mb/s */
3476 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3478 case 108: /* 54Mb/s */
3479 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3483 /* never exceed channel's maximum allowed Tx power */
3484 pwr = min(pwr, sc->maxpwr[chan]);
3486 /* retrieve power index into gain tables from samples */
3487 for (sample = group->samples; sample < &group->samples[3]; sample++)
3488 if (pwr > sample[1].power)
3490 /* fixed-point linear interpolation using a 19-bit fractional part */
3491 idx = interpolate(pwr, sample[0].power, sample[0].index,
3492 sample[1].power, sample[1].index, 19);
3495 * Adjust power index based on current temperature
3496 * - if colder than factory-calibrated: decreate output power
3497 * - if warmer than factory-calibrated: increase output power
3499 idx -= (sc->temp - group->temp) * 11 / 100;
3501 /* decrease power for CCK rates (-5dB) */
3502 if (!WPI_RATE_IS_OFDM(rate))
3505 /* keep power index in a valid range */
3508 if (idx > WPI_MAX_PWR_INDEX)
3509 return WPI_MAX_PWR_INDEX;
3517 * Called by net80211 framework to indicate that a scan
3518 * is starting. This function doesn't actually do the scan,
3519 * wpi_scan_curchan starts things off. This function is more
3520 * of an early warning from the framework we should get ready
3524 wpi_scan_start(struct ieee80211com *ic)
3526 struct ifnet *ifp = ic->ic_ifp;
3527 struct wpi_softc *sc = ifp->if_softc;
3530 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3535 * Called by the net80211 framework, indicates that the
3536 * scan has ended. If there is a scan in progress on the card
3537 * then it should be aborted.
3540 wpi_scan_end(struct ieee80211com *ic)
3546 * Called by the net80211 framework to indicate to the driver
3547 * that the channel should be changed
3550 wpi_set_channel(struct ieee80211com *ic)
3552 struct ifnet *ifp = ic->ic_ifp;
3553 struct wpi_softc *sc = ifp->if_softc;
3557 * Only need to set the channel in Monitor mode. AP scanning and auth
3558 * are already taken care of by their respective firmware commands.
3560 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
3562 error = wpi_config(sc);
3565 device_printf(sc->sc_dev,
3566 "error %d settting channel\n", error);
3571 * Called by net80211 to indicate that we need to scan the current
3572 * channel. The channel is previously be set via the wpi_set_channel
3576 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3578 struct ieee80211vap *vap = ss->ss_vap;
3579 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3580 struct wpi_softc *sc = ifp->if_softc;
3584 ieee80211_cancel_scan(vap);
3589 * Called by the net80211 framework to indicate
3590 * the minimum dwell time has been met, terminate the scan.
3591 * We don't actually terminate the scan as the firmware will notify
3592 * us when it's finished and we have no way to interrupt it.
3595 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
3597 /* NB: don't try to abort scan; wait for firmware to finish */
3601 wpi_hwreset(void *arg, int pending)
3603 struct wpi_softc *sc = arg;
3606 wpi_init_locked(sc, 0);
3611 wpi_rfreset(void *arg, int pending)
3613 struct wpi_softc *sc = arg;
3616 wpi_rfkill_resume(sc);
3621 * Allocate DMA-safe memory for firmware transfer.
3624 wpi_alloc_fwmem(struct wpi_softc *sc)
3626 /* allocate enough contiguous space to store text and data */
3627 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
3628 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1,
3633 wpi_free_fwmem(struct wpi_softc *sc)
3635 wpi_dma_contig_free(&sc->fw_dma);
3639 * Called every second, wpi_watchdog used by the watch dog timer
3640 * to check that the card is still alive
3643 wpi_watchdog(void *arg)
3645 struct wpi_softc *sc = arg;
3646 struct ifnet *ifp = sc->sc_ifp;
3647 struct ieee80211com *ic = ifp->if_l2com;
3650 DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n"));
3652 if (sc->flags & WPI_FLAG_HW_RADIO_OFF) {
3653 /* No need to lock firmware memory */
3654 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3656 if ((tmp & 0x1) == 0) {
3657 /* Radio kill switch is still off */
3658 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3662 device_printf(sc->sc_dev, "Hardware Switch Enabled\n");
3663 ieee80211_runtask(ic, &sc->sc_radiotask);
3667 if (sc->sc_tx_timer > 0) {
3668 if (--sc->sc_tx_timer == 0) {
3669 device_printf(sc->sc_dev,"device timeout\n");
3671 ieee80211_runtask(ic, &sc->sc_restarttask);
3674 if (sc->sc_scan_timer > 0) {
3675 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3676 if (--sc->sc_scan_timer == 0 && vap != NULL) {
3677 device_printf(sc->sc_dev,"scan timeout\n");
3678 ieee80211_cancel_scan(vap);
3679 ieee80211_runtask(ic, &sc->sc_restarttask);
3683 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3684 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3688 static const char *wpi_cmd_str(int cmd)
3691 case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD";
3692 case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE";
3693 case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE";
3694 case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME";
3695 case WPI_CMD_TSF: return "WPI_CMD_TSF";
3696 case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE";
3697 case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA";
3698 case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP";
3699 case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED";
3700 case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE";
3701 case WPI_CMD_SCAN: return "WPI_CMD_SCAN";
3702 case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON";
3703 case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER";
3704 case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH";
3707 KASSERT(1, ("Unknown Command: %d\n", cmd));
3708 return "UNKNOWN CMD"; /* Make the compiler happy */
3713 MODULE_DEPEND(wpi, pci, 1, 1, 1);
3714 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3715 MODULE_DEPEND(wpi, firmware, 1, 1, 1);