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 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
62 #include <sys/param.h>
63 #include <sys/sysctl.h>
64 #include <sys/sockio.h>
66 #include <sys/kernel.h>
67 #include <sys/socket.h>
68 #include <sys/systm.h>
69 #include <sys/malloc.h>
70 #include <sys/queue.h>
71 #include <sys/taskqueue.h>
72 #include <sys/module.h>
74 #include <sys/endian.h>
75 #include <sys/linker.h>
76 #include <sys/firmware.h>
78 #include <machine/bus.h>
79 #include <machine/resource.h>
82 #include <dev/pci/pcireg.h>
83 #include <dev/pci/pcivar.h>
87 #include <net/if_arp.h>
88 #include <net/ethernet.h>
89 #include <net/if_dl.h>
90 #include <net/if_media.h>
91 #include <net/if_types.h>
93 #include <net80211/ieee80211_var.h>
94 #include <net80211/ieee80211_radiotap.h>
95 #include <net80211/ieee80211_regdomain.h>
97 #include <netinet/in.h>
98 #include <netinet/in_systm.h>
99 #include <netinet/in_var.h>
100 #include <netinet/ip.h>
101 #include <netinet/if_ether.h>
103 #include <dev/wpi/if_wpireg.h>
104 #include <dev/wpi/if_wpivar.h>
109 #define DPRINTF(x) do { if (wpi_debug != 0) printf x; } while (0)
110 #define DPRINTFN(n, x) do { if (wpi_debug & n) printf x; } while (0)
111 #define WPI_DEBUG_SET (wpi_debug != 0)
114 WPI_DEBUG_UNUSED = 0x00000001, /* Unused */
115 WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */
116 WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/
117 WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */
118 WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/
119 WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */
120 WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */
121 WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */
122 WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */
123 WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */
124 WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */
125 WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */
126 WPI_DEBUG_ANY = 0xffffffff
129 static int wpi_debug = 1;
130 SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level");
131 TUNABLE_INT("debug.wpi", &wpi_debug);
135 #define DPRINTFN(n, x)
136 #define WPI_DEBUG_SET 0
146 static const struct wpi_ident wpi_ident_table[] = {
147 /* The below entries support ABG regardless of the subid */
148 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
149 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
150 /* The below entries only support BG */
151 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
152 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
153 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
154 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
158 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
159 const char name[IFNAMSIZ], int unit, int opmode,
160 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
161 const uint8_t mac[IEEE80211_ADDR_LEN]);
162 static void wpi_vap_delete(struct ieee80211vap *);
163 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
164 void **, bus_size_t, bus_size_t, int);
165 static void wpi_dma_contig_free(struct wpi_dma_info *);
166 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
167 static int wpi_alloc_shared(struct wpi_softc *);
168 static void wpi_free_shared(struct wpi_softc *);
169 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
170 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
171 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
172 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
174 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
175 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
176 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
177 const uint8_t mac[IEEE80211_ADDR_LEN]);
178 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
179 static void wpi_mem_lock(struct wpi_softc *);
180 static void wpi_mem_unlock(struct wpi_softc *);
181 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
182 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
183 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
184 const uint32_t *, int);
185 static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
186 static int wpi_alloc_fwmem(struct wpi_softc *);
187 static void wpi_free_fwmem(struct wpi_softc *);
188 static int wpi_load_firmware(struct wpi_softc *);
189 static void wpi_unload_firmware(struct wpi_softc *);
190 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int);
191 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *,
192 struct wpi_rx_data *);
193 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *);
194 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *);
195 static void wpi_notif_intr(struct wpi_softc *);
196 static void wpi_intr(void *);
197 static uint8_t wpi_plcp_signal(int);
198 static void wpi_watchdog(void *);
199 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
200 struct ieee80211_node *, int);
201 static void wpi_start(struct ifnet *);
202 static void wpi_start_locked(struct ifnet *);
203 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
204 const struct ieee80211_bpf_params *);
205 static void wpi_scan_start(struct ieee80211com *);
206 static void wpi_scan_end(struct ieee80211com *);
207 static void wpi_set_channel(struct ieee80211com *);
208 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
209 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
210 static int wpi_ioctl(struct ifnet *, u_long, caddr_t);
211 static void wpi_read_eeprom(struct wpi_softc *,
212 uint8_t macaddr[IEEE80211_ADDR_LEN]);
213 static void wpi_read_eeprom_channels(struct wpi_softc *, int);
214 static void wpi_read_eeprom_group(struct wpi_softc *, int);
215 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int);
216 static int wpi_wme_update(struct ieee80211com *);
217 static int wpi_mrr_setup(struct wpi_softc *);
218 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
219 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *);
221 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
223 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
224 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
225 static int wpi_scan(struct wpi_softc *);
226 static int wpi_config(struct wpi_softc *);
227 static void wpi_stop_master(struct wpi_softc *);
228 static int wpi_power_up(struct wpi_softc *);
229 static int wpi_reset(struct wpi_softc *);
230 static void wpi_hwreset(void *, int);
231 static void wpi_rfreset(void *, int);
232 static void wpi_hw_config(struct wpi_softc *);
233 static void wpi_init(void *);
234 static void wpi_init_locked(struct wpi_softc *, int);
235 static void wpi_stop(struct wpi_softc *);
236 static void wpi_stop_locked(struct wpi_softc *);
238 static void wpi_newassoc(struct ieee80211_node *, int);
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);
256 static device_method_t wpi_methods[] = {
257 /* Device interface */
258 DEVMETHOD(device_probe, wpi_probe),
259 DEVMETHOD(device_attach, wpi_attach),
260 DEVMETHOD(device_detach, wpi_detach),
261 DEVMETHOD(device_shutdown, wpi_shutdown),
262 DEVMETHOD(device_suspend, wpi_suspend),
263 DEVMETHOD(device_resume, wpi_resume),
268 static driver_t wpi_driver = {
271 sizeof (struct wpi_softc)
274 static devclass_t wpi_devclass;
276 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, 0, 0);
278 static const uint8_t wpi_ridx_to_plcp[] = {
279 /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
280 /* R1-R4 (ral/ural is R4-R1) */
281 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
282 /* CCK: device-dependent */
285 static const uint8_t wpi_ridx_to_rate[] = {
286 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */
287 2, 4, 11, 22 /*CCK */
292 wpi_probe(device_t dev)
294 const struct wpi_ident *ident;
296 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
297 if (pci_get_vendor(dev) == ident->vendor &&
298 pci_get_device(dev) == ident->device) {
299 device_set_desc(dev, ident->name);
307 * Load the firmare image from disk to the allocated dma buffer.
308 * we also maintain the reference to the firmware pointer as there
309 * is times where we may need to reload the firmware but we are not
310 * in a context that can access the filesystem (ie taskq cause by restart)
312 * @return 0 on success, an errno on failure
315 wpi_load_firmware(struct wpi_softc *sc)
317 const struct firmware *fp;
318 struct wpi_dma_info *dma = &sc->fw_dma;
319 const struct wpi_firmware_hdr *hdr;
320 const uint8_t *itext, *idata, *rtext, *rdata, *btext;
321 uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz;
324 DPRINTFN(WPI_DEBUG_FIRMWARE,
325 ("Attempting Loading Firmware from wpi_fw module\n"));
329 if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) {
330 device_printf(sc->sc_dev,
331 "could not load firmware image 'wpifw'\n");
341 /* Validate the firmware is minimum a particular version */
342 if (fp->version < WPI_FW_MINVERSION) {
343 device_printf(sc->sc_dev,
344 "firmware version is too old. Need %d, got %d\n",
351 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
352 device_printf(sc->sc_dev,
353 "firmware file too short: %zu bytes\n", fp->datasize);
358 hdr = (const struct wpi_firmware_hdr *)fp->data;
360 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
361 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
363 rtextsz = le32toh(hdr->rtextsz);
364 rdatasz = le32toh(hdr->rdatasz);
365 itextsz = le32toh(hdr->itextsz);
366 idatasz = le32toh(hdr->idatasz);
367 btextsz = le32toh(hdr->btextsz);
369 /* check that all firmware segments are present */
370 if (fp->datasize < sizeof (struct wpi_firmware_hdr) +
371 rtextsz + rdatasz + itextsz + idatasz + btextsz) {
372 device_printf(sc->sc_dev,
373 "firmware file too short: %zu bytes\n", fp->datasize);
374 error = ENXIO; /* XXX appropriate error code? */
378 /* get pointers to firmware segments */
379 rtext = (const uint8_t *)(hdr + 1);
380 rdata = rtext + rtextsz;
381 itext = rdata + rdatasz;
382 idata = itext + itextsz;
383 btext = idata + idatasz;
385 DPRINTFN(WPI_DEBUG_FIRMWARE,
386 ("Firmware Version: Major %d, Minor %d, Driver %d, \n"
387 "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n",
388 (le32toh(hdr->version) & 0xff000000) >> 24,
389 (le32toh(hdr->version) & 0x00ff0000) >> 16,
390 (le32toh(hdr->version) & 0x0000ffff),
392 itextsz, idatasz, btextsz));
394 DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext));
395 DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata));
396 DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext));
397 DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata));
398 DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext));
401 if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ ||
402 rdatasz > WPI_FW_MAIN_DATA_MAXSZ ||
403 itextsz > WPI_FW_INIT_TEXT_MAXSZ ||
404 idatasz > WPI_FW_INIT_DATA_MAXSZ ||
405 btextsz > WPI_FW_BOOT_TEXT_MAXSZ ||
406 (btextsz & 3) != 0) {
407 device_printf(sc->sc_dev, "firmware invalid\n");
412 /* copy initialization images into pre-allocated DMA-safe memory */
413 memcpy(dma->vaddr, idata, idatasz);
414 memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz);
416 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
418 /* tell adapter where to find initialization images */
420 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
421 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz);
422 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
423 dma->paddr + WPI_FW_INIT_DATA_MAXSZ);
424 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz);
427 /* load firmware boot code */
428 if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) {
429 device_printf(sc->sc_dev, "Failed to load microcode\n");
433 /* now press "execute" */
434 WPI_WRITE(sc, WPI_RESET, 0);
436 /* wait at most one second for the first alive notification */
437 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
438 device_printf(sc->sc_dev,
439 "timeout waiting for adapter to initialize\n");
443 /* copy runtime images into pre-allocated DMA-sage memory */
444 memcpy(dma->vaddr, rdata, rdatasz);
445 memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz);
446 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
448 /* tell adapter where to find runtime images */
450 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
451 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz);
452 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
453 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ);
454 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz);
457 /* wait at most one second for the first alive notification */
458 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
459 device_printf(sc->sc_dev,
460 "timeout waiting for adapter to initialize2\n");
464 DPRINTFN(WPI_DEBUG_FIRMWARE,
465 ("Firmware loaded to driver successfully\n"));
468 wpi_unload_firmware(sc);
473 * Free the referenced firmware image
476 wpi_unload_firmware(struct wpi_softc *sc)
481 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
488 wpi_attach(device_t dev)
490 struct wpi_softc *sc = device_get_softc(dev);
492 struct ieee80211com *ic;
493 int ac, error, supportsa = 1;
495 const struct wpi_ident *ident;
496 uint8_t macaddr[IEEE80211_ADDR_LEN];
500 if (bootverbose || WPI_DEBUG_SET)
501 device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION);
504 * Some card's only support 802.11b/g not a, check to see if
505 * this is one such card. A 0x0 in the subdevice table indicates
506 * the entire subdevice range is to be ignored.
508 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
509 if (ident->subdevice &&
510 pci_get_subdevice(dev) == ident->subdevice) {
516 /* Create the tasks that can be queued */
517 TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc);
518 TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc);
522 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
523 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
525 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
526 device_printf(dev, "chip is in D%d power mode "
527 "-- setting to D0\n", pci_get_powerstate(dev));
528 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
531 /* disable the retry timeout register */
532 pci_write_config(dev, 0x41, 0, 1);
534 /* enable bus-mastering */
535 pci_enable_busmaster(dev);
537 sc->mem_rid = PCIR_BAR(0);
538 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
540 if (sc->mem == NULL) {
541 device_printf(dev, "could not allocate memory resource\n");
546 sc->sc_st = rman_get_bustag(sc->mem);
547 sc->sc_sh = rman_get_bushandle(sc->mem);
550 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
551 RF_ACTIVE | RF_SHAREABLE);
552 if (sc->irq == NULL) {
553 device_printf(dev, "could not allocate interrupt resource\n");
559 * Allocate DMA memory for firmware transfers.
561 if ((error = wpi_alloc_fwmem(sc)) != 0) {
562 printf(": could not allocate firmware memory\n");
568 * Put adapter into a known state.
570 if ((error = wpi_reset(sc)) != 0) {
571 device_printf(dev, "could not reset adapter\n");
576 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
577 if (bootverbose || WPI_DEBUG_SET)
578 device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp);
582 /* Allocate shared page */
583 if ((error = wpi_alloc_shared(sc)) != 0) {
584 device_printf(dev, "could not allocate shared page\n");
588 /* tx data queues - 4 for QoS purposes */
589 for (ac = 0; ac < WME_NUM_AC; ac++) {
590 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac);
592 device_printf(dev, "could not allocate Tx ring %d\n",ac);
597 /* command queue to talk to the card's firmware */
598 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4);
600 device_printf(dev, "could not allocate command ring\n");
604 /* receive data queue */
605 error = wpi_alloc_rx_ring(sc, &sc->rxq);
607 device_printf(dev, "could not allocate Rx ring\n");
611 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
613 device_printf(dev, "can not if_alloc()\n");
620 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
621 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
623 /* set device capabilities */
625 IEEE80211_C_STA /* station mode supported */
626 | IEEE80211_C_MONITOR /* monitor mode supported */
627 | IEEE80211_C_TXPMGT /* tx power management */
628 | IEEE80211_C_SHSLOT /* short slot time supported */
629 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
630 | IEEE80211_C_WPA /* 802.11i */
631 /* XXX looks like WME is partly supported? */
633 | IEEE80211_C_IBSS /* IBSS mode support */
634 | IEEE80211_C_BGSCAN /* capable of bg scanning */
635 | IEEE80211_C_WME /* 802.11e */
636 | IEEE80211_C_HOSTAP /* Host access point mode */
641 * Read in the eeprom and also setup the channels for
642 * net80211. We don't set the rates as net80211 does this for us
644 wpi_read_eeprom(sc, macaddr);
646 if (bootverbose || WPI_DEBUG_SET) {
647 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain);
648 device_printf(sc->sc_dev, "Hardware Type: %c\n",
649 sc->type > 1 ? 'B': '?');
650 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
651 ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?');
652 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
653 supportsa ? "does" : "does not");
655 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check
656 what sc->rev really represents - benjsc 20070615 */
659 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
661 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
662 ifp->if_init = wpi_init;
663 ifp->if_ioctl = wpi_ioctl;
664 ifp->if_start = wpi_start;
665 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
666 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
667 IFQ_SET_READY(&ifp->if_snd);
669 ieee80211_ifattach(ic, macaddr);
670 /* override default methods */
671 ic->ic_node_alloc = wpi_node_alloc;
672 ic->ic_newassoc = wpi_newassoc;
673 ic->ic_raw_xmit = wpi_raw_xmit;
674 ic->ic_wme.wme_update = wpi_wme_update;
675 ic->ic_scan_start = wpi_scan_start;
676 ic->ic_scan_end = wpi_scan_end;
677 ic->ic_set_channel = wpi_set_channel;
678 ic->ic_scan_curchan = wpi_scan_curchan;
679 ic->ic_scan_mindwell = wpi_scan_mindwell;
681 ic->ic_vap_create = wpi_vap_create;
682 ic->ic_vap_delete = wpi_vap_delete;
684 ieee80211_radiotap_attach(ic,
685 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
686 WPI_TX_RADIOTAP_PRESENT,
687 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
688 WPI_RX_RADIOTAP_PRESENT);
691 * Hook our interrupt after all initialization is complete.
693 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET |INTR_MPSAFE,
694 NULL, wpi_intr, sc, &sc->sc_ih);
696 device_printf(dev, "could not set up interrupt\n");
701 ieee80211_announce(ic);
703 ieee80211_announce_channels(ic);
707 fail: wpi_detach(dev);
712 wpi_detach(device_t dev)
714 struct wpi_softc *sc = device_get_softc(dev);
715 struct ifnet *ifp = sc->sc_ifp;
716 struct ieee80211com *ic = ifp->if_l2com;
719 ieee80211_draintask(ic, &sc->sc_restarttask);
720 ieee80211_draintask(ic, &sc->sc_radiotask);
724 callout_drain(&sc->watchdog_to);
725 callout_drain(&sc->calib_to);
726 ieee80211_ifdetach(ic);
730 if (sc->txq[0].data_dmat) {
731 for (ac = 0; ac < WME_NUM_AC; ac++)
732 wpi_free_tx_ring(sc, &sc->txq[ac]);
734 wpi_free_tx_ring(sc, &sc->cmdq);
735 wpi_free_rx_ring(sc, &sc->rxq);
739 if (sc->fw_fp != NULL) {
740 wpi_unload_firmware(sc);
747 if (sc->irq != NULL) {
748 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
749 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
753 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
758 WPI_LOCK_DESTROY(sc);
763 static struct ieee80211vap *
764 wpi_vap_create(struct ieee80211com *ic,
765 const char name[IFNAMSIZ], int unit, int opmode, int flags,
766 const uint8_t bssid[IEEE80211_ADDR_LEN],
767 const uint8_t mac[IEEE80211_ADDR_LEN])
770 struct ieee80211vap *vap;
772 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
774 wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
775 M_80211_VAP, M_NOWAIT | M_ZERO);
779 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
780 /* override with driver methods */
781 wvp->newstate = vap->iv_newstate;
782 vap->iv_newstate = wpi_newstate;
784 ieee80211_amrr_init(&wvp->amrr, vap,
785 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
786 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
790 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
791 ic->ic_opmode = opmode;
796 wpi_vap_delete(struct ieee80211vap *vap)
798 struct wpi_vap *wvp = WPI_VAP(vap);
800 ieee80211_amrr_cleanup(&wvp->amrr);
801 ieee80211_vap_detach(vap);
802 free(wvp, M_80211_VAP);
806 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
811 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
813 *(bus_addr_t *)arg = segs[0].ds_addr;
817 * Allocates a contiguous block of dma memory of the requested size and
818 * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217,
819 * allocations greater than 4096 may fail. Hence if the requested alignment is
820 * greater we allocate 'alignment' size extra memory and shift the vaddr and
821 * paddr after the dma load. This bypasses the problem at the cost of a little
825 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
826 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
832 DPRINTFN(WPI_DEBUG_DMA,
833 ("Size: %zd - alignment %zd\n", size, alignment));
838 if (alignment > 4096) {
840 reqsize = size + alignment;
845 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), align,
846 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
849 NULL, NULL, &dma->tag);
851 device_printf(sc->sc_dev,
852 "could not create shared page DMA tag\n");
855 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start,
856 flags | BUS_DMA_ZERO, &dma->map);
858 device_printf(sc->sc_dev,
859 "could not allocate shared page DMA memory\n");
863 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start,
864 reqsize, wpi_dma_map_addr, &dma->paddr_start, flags);
866 /* Save the original pointers so we can free all the memory */
867 dma->paddr = dma->paddr_start;
868 dma->vaddr = dma->vaddr_start;
871 * Check the alignment and increment by 4096 until we get the
872 * requested alignment. Fail if can't obtain the alignment
875 if ((dma->paddr & (alignment -1 )) != 0) {
878 for (i = 0; i < alignment / 4096; i++) {
879 if ((dma->paddr & (alignment - 1 )) == 0)
884 if (i == alignment / 4096) {
885 device_printf(sc->sc_dev,
886 "alignment requirement was not satisfied\n");
892 device_printf(sc->sc_dev,
893 "could not load shared page DMA map\n");
903 wpi_dma_contig_free(dma);
908 wpi_dma_contig_free(struct wpi_dma_info *dma)
911 if (dma->map != NULL) {
912 if (dma->paddr_start != 0) {
913 bus_dmamap_sync(dma->tag, dma->map,
914 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
915 bus_dmamap_unload(dma->tag, dma->map);
917 bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map);
919 bus_dma_tag_destroy(dma->tag);
924 * Allocate a shared page between host and NIC.
927 wpi_alloc_shared(struct wpi_softc *sc)
931 error = wpi_dma_contig_alloc(sc, &sc->shared_dma,
932 (void **)&sc->shared, sizeof (struct wpi_shared),
937 device_printf(sc->sc_dev,
938 "could not allocate shared area DMA memory\n");
945 wpi_free_shared(struct wpi_softc *sc)
947 wpi_dma_contig_free(&sc->shared_dma);
951 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
958 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
959 (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t),
960 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
963 device_printf(sc->sc_dev,
964 "%s: could not allocate rx ring DMA memory, error %d\n",
969 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
970 BUS_SPACE_MAXADDR_32BIT,
971 BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1,
972 MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat);
974 device_printf(sc->sc_dev,
975 "%s: bus_dma_tag_create_failed, error %d\n",
983 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
984 struct wpi_rx_data *data = &ring->data[i];
988 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
990 device_printf(sc->sc_dev,
991 "%s: bus_dmamap_create failed, error %d\n",
995 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
997 device_printf(sc->sc_dev,
998 "%s: could not allocate rx mbuf\n", __func__);
1003 error = bus_dmamap_load(ring->data_dmat, data->map,
1004 mtod(m, caddr_t), MJUMPAGESIZE,
1005 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1006 if (error != 0 && error != EFBIG) {
1007 device_printf(sc->sc_dev,
1008 "%s: bus_dmamap_load failed, error %d\n",
1011 error = ENOMEM; /* XXX unique code */
1014 bus_dmamap_sync(ring->data_dmat, data->map,
1015 BUS_DMASYNC_PREWRITE);
1018 ring->desc[i] = htole32(paddr);
1020 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1021 BUS_DMASYNC_PREWRITE);
1024 wpi_free_rx_ring(sc, ring);
1029 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1035 WPI_WRITE(sc, WPI_RX_CONFIG, 0);
1037 for (ntries = 0; ntries < 100; ntries++) {
1038 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
1046 if (ntries == 100 && wpi_debug > 0)
1047 device_printf(sc->sc_dev, "timeout resetting Rx ring\n");
1054 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1058 wpi_dma_contig_free(&ring->desc_dma);
1060 for (i = 0; i < WPI_RX_RING_COUNT; i++)
1061 if (ring->data[i].m != NULL)
1062 m_freem(ring->data[i].m);
1066 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count,
1069 struct wpi_tx_data *data;
1073 ring->count = count;
1078 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1079 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc),
1080 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1083 device_printf(sc->sc_dev, "could not allocate tx dma memory\n");
1087 /* update shared page with ring's base address */
1088 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1090 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1091 count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN,
1095 device_printf(sc->sc_dev,
1096 "could not allocate tx command DMA memory\n");
1100 ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF,
1102 if (ring->data == NULL) {
1103 device_printf(sc->sc_dev,
1104 "could not allocate tx data slots\n");
1108 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1109 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1110 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1113 device_printf(sc->sc_dev, "could not create data DMA tag\n");
1117 for (i = 0; i < count; i++) {
1118 data = &ring->data[i];
1120 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1122 device_printf(sc->sc_dev,
1123 "could not create tx buf DMA map\n");
1126 bus_dmamap_sync(ring->data_dmat, data->map,
1127 BUS_DMASYNC_PREWRITE);
1133 wpi_free_tx_ring(sc, ring);
1138 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1140 struct wpi_tx_data *data;
1145 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
1146 for (ntries = 0; ntries < 100; ntries++) {
1147 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
1152 if (ntries == 100 && wpi_debug > 0)
1153 device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n",
1158 for (i = 0; i < ring->count; i++) {
1159 data = &ring->data[i];
1161 if (data->m != NULL) {
1162 bus_dmamap_unload(ring->data_dmat, data->map);
1173 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1175 struct wpi_tx_data *data;
1178 wpi_dma_contig_free(&ring->desc_dma);
1179 wpi_dma_contig_free(&ring->cmd_dma);
1181 if (ring->data != NULL) {
1182 for (i = 0; i < ring->count; i++) {
1183 data = &ring->data[i];
1185 if (data->m != NULL) {
1186 bus_dmamap_sync(ring->data_dmat, data->map,
1187 BUS_DMASYNC_POSTWRITE);
1188 bus_dmamap_unload(ring->data_dmat, data->map);
1193 free(ring->data, M_DEVBUF);
1196 if (ring->data_dmat != NULL)
1197 bus_dma_tag_destroy(ring->data_dmat);
1201 wpi_shutdown(device_t dev)
1203 struct wpi_softc *sc = device_get_softc(dev);
1206 wpi_stop_locked(sc);
1207 wpi_unload_firmware(sc);
1214 wpi_suspend(device_t dev)
1216 struct wpi_softc *sc = device_get_softc(dev);
1223 wpi_resume(device_t dev)
1225 struct wpi_softc *sc = device_get_softc(dev);
1226 struct ifnet *ifp = sc->sc_ifp;
1228 pci_write_config(dev, 0x41, 0, 1);
1230 if (ifp->if_flags & IFF_UP) {
1231 wpi_init(ifp->if_softc);
1232 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1239 static struct ieee80211_node *
1240 wpi_node_alloc(struct ieee80211vap *vap __unused,
1241 const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
1243 struct wpi_node *wn;
1245 wn = malloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
1251 * Called by net80211 when ever there is a change to 80211 state machine
1254 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1256 struct wpi_vap *wvp = WPI_VAP(vap);
1257 struct ieee80211com *ic = vap->iv_ic;
1258 struct ifnet *ifp = ic->ic_ifp;
1259 struct wpi_softc *sc = ifp->if_softc;
1262 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
1263 ieee80211_state_name[vap->iv_state],
1264 ieee80211_state_name[nstate], sc->flags));
1266 IEEE80211_UNLOCK(ic);
1268 if (nstate == IEEE80211_S_AUTH) {
1269 /* The node must be registered in the firmware before auth */
1270 error = wpi_auth(sc, vap);
1272 device_printf(sc->sc_dev,
1273 "%s: could not move to auth state, error %d\n",
1277 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1278 error = wpi_run(sc, vap);
1280 device_printf(sc->sc_dev,
1281 "%s: could not move to run state, error %d\n",
1285 if (nstate == IEEE80211_S_RUN) {
1286 /* RUN -> RUN transition; just restart the timers */
1287 wpi_calib_timeout(sc);
1288 /* XXX split out rate control timer */
1292 return wvp->newstate(vap, nstate, arg);
1296 * Grab exclusive access to NIC memory.
1299 wpi_mem_lock(struct wpi_softc *sc)
1304 tmp = WPI_READ(sc, WPI_GPIO_CTL);
1305 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
1307 /* spin until we actually get the lock */
1308 for (ntries = 0; ntries < 100; ntries++) {
1309 if ((WPI_READ(sc, WPI_GPIO_CTL) &
1310 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
1315 device_printf(sc->sc_dev, "could not lock memory\n");
1319 * Release lock on NIC memory.
1322 wpi_mem_unlock(struct wpi_softc *sc)
1324 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
1325 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
1329 wpi_mem_read(struct wpi_softc *sc, uint16_t addr)
1331 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
1332 return WPI_READ(sc, WPI_READ_MEM_DATA);
1336 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data)
1338 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
1339 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
1343 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr,
1344 const uint32_t *data, int wlen)
1346 for (; wlen > 0; wlen--, data++, addr+=4)
1347 wpi_mem_write(sc, addr, *data);
1351 * Read data from the EEPROM. We access EEPROM through the MAC instead of
1352 * using the traditional bit-bang method. Data is read up until len bytes have
1356 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len)
1360 uint8_t *out = data;
1364 for (; len > 0; len -= 2, addr++) {
1365 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
1367 for (ntries = 0; ntries < 10; ntries++) {
1368 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
1374 device_printf(sc->sc_dev, "could not read EEPROM\n");
1389 * The firmware text and data segments are transferred to the NIC using DMA.
1390 * The driver just copies the firmware into DMA-safe memory and tells the NIC
1391 * where to find it. Once the NIC has copied the firmware into its internal
1392 * memory, we can free our local copy in the driver.
1395 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size)
1399 DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size));
1401 size /= sizeof(uint32_t);
1405 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE,
1406 (const uint32_t *)fw, size);
1408 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
1409 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
1410 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
1413 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
1415 /* wait while the adapter is busy copying the firmware */
1416 for (error = 0, ntries = 0; ntries < 1000; ntries++) {
1417 uint32_t status = WPI_READ(sc, WPI_TX_STATUS);
1418 DPRINTFN(WPI_DEBUG_HW,
1419 ("firmware status=0x%x, val=0x%x, result=0x%x\n", status,
1420 WPI_TX_IDLE(6), status & WPI_TX_IDLE(6)));
1421 if (status & WPI_TX_IDLE(6)) {
1422 DPRINTFN(WPI_DEBUG_HW,
1423 ("Status Match! - ntries = %d\n", ntries));
1428 if (ntries == 1000) {
1429 device_printf(sc->sc_dev, "timeout transferring firmware\n");
1433 /* start the microcode executing */
1434 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE);
1442 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1443 struct wpi_rx_data *data)
1445 struct ifnet *ifp = sc->sc_ifp;
1446 struct ieee80211com *ic = ifp->if_l2com;
1447 struct wpi_rx_ring *ring = &sc->rxq;
1448 struct wpi_rx_stat *stat;
1449 struct wpi_rx_head *head;
1450 struct wpi_rx_tail *tail;
1451 struct ieee80211_node *ni;
1452 struct mbuf *m, *mnew;
1456 stat = (struct wpi_rx_stat *)(desc + 1);
1458 if (stat->len > WPI_STAT_MAXLEN) {
1459 device_printf(sc->sc_dev, "invalid rx statistic header\n");
1464 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1465 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len));
1467 DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d "
1468 "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len),
1469 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan,
1470 (uintmax_t)le64toh(tail->tstamp)));
1472 /* discard Rx frames with bad CRC early */
1473 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1474 DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__,
1475 le32toh(tail->flags)));
1479 if (le16toh(head->len) < sizeof (struct ieee80211_frame)) {
1480 DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__,
1481 le16toh(head->len)));
1486 /* XXX don't need mbuf, just dma buffer */
1487 mnew = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1489 DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n",
1494 error = bus_dmamap_load(ring->data_dmat, data->map,
1495 mtod(mnew, caddr_t), MJUMPAGESIZE,
1496 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1497 if (error != 0 && error != EFBIG) {
1498 device_printf(sc->sc_dev,
1499 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1504 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1506 /* finalize mbuf and swap in new one */
1508 m->m_pkthdr.rcvif = ifp;
1509 m->m_data = (caddr_t)(head + 1);
1510 m->m_pkthdr.len = m->m_len = le16toh(head->len);
1513 /* update Rx descriptor */
1514 ring->desc[ring->cur] = htole32(paddr);
1516 if (ieee80211_radiotap_active(ic)) {
1517 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1521 htole16(ic->ic_channels[head->chan].ic_freq);
1522 tap->wr_chan_flags =
1523 htole16(ic->ic_channels[head->chan].ic_flags);
1524 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
1525 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise);
1526 tap->wr_tsft = tail->tstamp;
1527 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1528 switch (head->rate) {
1530 case 10: tap->wr_rate = 2; break;
1531 case 20: tap->wr_rate = 4; break;
1532 case 55: tap->wr_rate = 11; break;
1533 case 110: tap->wr_rate = 22; break;
1535 case 0xd: tap->wr_rate = 12; break;
1536 case 0xf: tap->wr_rate = 18; break;
1537 case 0x5: tap->wr_rate = 24; break;
1538 case 0x7: tap->wr_rate = 36; break;
1539 case 0x9: tap->wr_rate = 48; break;
1540 case 0xb: tap->wr_rate = 72; break;
1541 case 0x1: tap->wr_rate = 96; break;
1542 case 0x3: tap->wr_rate = 108; break;
1543 /* unknown rate: should not happen */
1544 default: tap->wr_rate = 0;
1546 if (le16toh(head->flags) & 0x4)
1547 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1552 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1554 (void) ieee80211_input(ni, m, stat->rssi, 0);
1555 ieee80211_free_node(ni);
1557 (void) ieee80211_input_all(ic, m, stat->rssi, 0);
1563 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1565 struct ifnet *ifp = sc->sc_ifp;
1566 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1567 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1568 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1569 struct wpi_node *wn = (struct wpi_node *)txdata->ni;
1571 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1572 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1573 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1574 le32toh(stat->status)));
1577 * Update rate control statistics for the node.
1578 * XXX we should not count mgmt frames since they're always sent at
1579 * the lowest available bit-rate.
1580 * XXX frames w/o ACK shouldn't be used either
1582 wn->amn.amn_txcnt++;
1583 if (stat->ntries > 0) {
1584 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1585 wn->amn.amn_retrycnt++;
1588 /* XXX oerrors should only count errors !maxtries */
1589 if ((le32toh(stat->status) & 0xff) != 1)
1594 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);
1595 bus_dmamap_unload(ring->data_dmat, txdata->map);
1596 /* XXX handle M_TXCB? */
1599 ieee80211_free_node(txdata->ni);
1604 sc->sc_tx_timer = 0;
1605 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1606 wpi_start_locked(ifp);
1610 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1612 struct wpi_tx_ring *ring = &sc->cmdq;
1613 struct wpi_tx_data *data;
1615 DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x "
1616 "type=%s len=%d\n", desc->qid, desc->idx,
1617 desc->flags, wpi_cmd_str(desc->type),
1618 le32toh(desc->len)));
1620 if ((desc->qid & 7) != 4)
1621 return; /* not a command ack */
1623 data = &ring->data[desc->idx];
1625 /* if the command was mapped in a mbuf, free it */
1626 if (data->m != NULL) {
1627 bus_dmamap_unload(ring->data_dmat, data->map);
1632 sc->flags &= ~WPI_FLAG_BUSY;
1633 wakeup(&ring->cmd[desc->idx]);
1637 wpi_notif_intr(struct wpi_softc *sc)
1639 struct ifnet *ifp = sc->sc_ifp;
1640 struct ieee80211com *ic = ifp->if_l2com;
1641 struct wpi_rx_desc *desc;
1642 struct wpi_rx_data *data;
1645 hw = le32toh(sc->shared->next);
1646 while (sc->rxq.cur != hw) {
1647 data = &sc->rxq.data[sc->rxq.cur];
1648 desc = (void *)data->m->m_ext.ext_buf;
1650 DPRINTFN(WPI_DEBUG_NOTIFY,
1651 ("notify qid=%x idx=%d flags=%x type=%d len=%d\n",
1656 le32toh(desc->len)));
1658 if (!(desc->qid & 0x80)) /* reply to a command */
1659 wpi_cmd_intr(sc, desc);
1661 switch (desc->type) {
1663 /* a 802.11 frame was received */
1664 wpi_rx_intr(sc, desc, data);
1668 /* a 802.11 frame has been transmitted */
1669 wpi_tx_intr(sc, desc);
1674 struct wpi_ucode_info *uc =
1675 (struct wpi_ucode_info *)(desc + 1);
1677 /* the microcontroller is ready */
1678 DPRINTF(("microcode alive notification version %x "
1679 "alive %x\n", le32toh(uc->version),
1680 le32toh(uc->valid)));
1682 if (le32toh(uc->valid) != 1) {
1683 device_printf(sc->sc_dev,
1684 "microcontroller initialization failed\n");
1685 wpi_stop_locked(sc);
1689 case WPI_STATE_CHANGED:
1691 uint32_t *status = (uint32_t *)(desc + 1);
1693 /* enabled/disabled notification */
1694 DPRINTF(("state changed to %x\n", le32toh(*status)));
1696 if (le32toh(*status) & 1) {
1697 device_printf(sc->sc_dev,
1698 "Radio transmitter is switched off\n");
1699 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
1700 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1701 /* Disable firmware commands */
1702 WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD);
1706 case WPI_START_SCAN:
1709 struct wpi_start_scan *scan =
1710 (struct wpi_start_scan *)(desc + 1);
1713 DPRINTFN(WPI_DEBUG_SCANNING,
1714 ("scanning channel %d status %x\n",
1715 scan->chan, le32toh(scan->status)));
1721 struct wpi_stop_scan *scan =
1722 (struct wpi_stop_scan *)(desc + 1);
1724 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1726 DPRINTFN(WPI_DEBUG_SCANNING,
1727 ("scan finished nchan=%d status=%d chan=%d\n",
1728 scan->nchan, scan->status, scan->chan));
1730 sc->sc_scan_timer = 0;
1731 ieee80211_scan_next(vap);
1734 case WPI_MISSED_BEACON:
1736 struct wpi_missed_beacon *beacon =
1737 (struct wpi_missed_beacon *)(desc + 1);
1738 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1740 if (le32toh(beacon->consecutive) >=
1741 vap->iv_bmissthreshold) {
1742 DPRINTF(("Beacon miss: %u >= %u\n",
1743 le32toh(beacon->consecutive),
1744 vap->iv_bmissthreshold));
1745 ieee80211_beacon_miss(ic);
1751 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
1754 /* tell the firmware what we have processed */
1755 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
1756 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7);
1762 struct wpi_softc *sc = arg;
1767 r = WPI_READ(sc, WPI_INTR);
1768 if (r == 0 || r == 0xffffffff) {
1773 /* disable interrupts */
1774 WPI_WRITE(sc, WPI_MASK, 0);
1775 /* ack interrupts */
1776 WPI_WRITE(sc, WPI_INTR, r);
1778 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
1779 struct ifnet *ifp = sc->sc_ifp;
1780 struct ieee80211com *ic = ifp->if_l2com;
1781 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1783 device_printf(sc->sc_dev, "fatal firmware error\n");
1784 DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" :
1785 "(Hardware Error)"));
1787 ieee80211_cancel_scan(vap);
1788 ieee80211_runtask(ic, &sc->sc_restarttask);
1789 sc->flags &= ~WPI_FLAG_BUSY;
1794 if (r & WPI_RX_INTR)
1797 if (r & WPI_ALIVE_INTR) /* firmware initialized */
1800 /* re-enable interrupts */
1801 if (sc->sc_ifp->if_flags & IFF_UP)
1802 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
1808 wpi_plcp_signal(int rate)
1811 /* CCK rates (returned values are device-dependent) */
1815 case 22: return 110;
1817 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1818 /* R1-R4 (ral/ural is R4-R1) */
1819 case 12: return 0xd;
1820 case 18: return 0xf;
1821 case 24: return 0x5;
1822 case 36: return 0x7;
1823 case 48: return 0x9;
1824 case 72: return 0xb;
1825 case 96: return 0x1;
1826 case 108: return 0x3;
1828 /* unsupported rates (should not get there) */
1833 /* quickly determine if a given rate is CCK or OFDM */
1834 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1837 * Construct the data packet for a transmit buffer and acutally put
1838 * the buffer onto the transmit ring, kicking the card to process the
1842 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1845 struct ieee80211vap *vap = ni->ni_vap;
1846 struct ifnet *ifp = sc->sc_ifp;
1847 struct ieee80211com *ic = ifp->if_l2com;
1848 const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
1849 struct wpi_tx_ring *ring = &sc->txq[ac];
1850 struct wpi_tx_desc *desc;
1851 struct wpi_tx_data *data;
1852 struct wpi_tx_cmd *cmd;
1853 struct wpi_cmd_data *tx;
1854 struct ieee80211_frame *wh;
1855 const struct ieee80211_txparam *tp;
1856 struct ieee80211_key *k;
1858 int i, error, nsegs, rate, hdrlen, ismcast;
1859 bus_dma_segment_t segs[WPI_MAX_SCATTER];
1861 desc = &ring->desc[ring->cur];
1862 data = &ring->data[ring->cur];
1864 wh = mtod(m0, struct ieee80211_frame *);
1866 hdrlen = ieee80211_hdrsize(wh);
1867 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1869 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1870 k = ieee80211_crypto_encap(ni, m0);
1875 /* packet header may have moved, reset our local pointer */
1876 wh = mtod(m0, struct ieee80211_frame *);
1879 cmd = &ring->cmd[ring->cur];
1880 cmd->code = WPI_CMD_TX_DATA;
1882 cmd->qid = ring->qid;
1883 cmd->idx = ring->cur;
1885 tx = (struct wpi_cmd_data *)cmd->data;
1886 tx->flags = htole32(WPI_TX_AUTO_SEQ);
1887 tx->timeout = htole16(0);
1888 tx->ofdm_mask = 0xff;
1889 tx->cck_mask = 0x0f;
1890 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
1891 tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS;
1892 tx->len = htole16(m0->m_pkthdr.len);
1895 if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 ||
1896 !cap->cap_wmeParams[ac].wmep_noackPolicy)
1897 tx->flags |= htole32(WPI_TX_NEED_ACK);
1898 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
1899 tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP);
1904 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1905 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
1906 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1907 /* tell h/w to set timestamp in probe responses */
1908 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1909 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP);
1910 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
1911 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
1912 tx->timeout = htole16(3);
1914 tx->timeout = htole16(2);
1915 rate = tp->mgmtrate;
1916 } else if (ismcast) {
1917 rate = tp->mcastrate;
1918 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1919 rate = tp->ucastrate;
1921 (void) ieee80211_amrr_choose(ni, &WPI_NODE(ni)->amn);
1922 rate = ni->ni_txrate;
1924 tx->rate = wpi_plcp_signal(rate);
1926 /* be very persistant at sending frames out */
1928 tx->data_ntries = tp->maxretry;
1930 tx->data_ntries = 15; /* XXX way too high */
1933 if (ieee80211_radiotap_active_vap(vap)) {
1934 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
1936 tap->wt_rate = rate;
1937 tap->wt_hwqueue = ac;
1938 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
1939 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1941 ieee80211_radiotap_tx(vap, m0);
1944 /* save and trim IEEE802.11 header */
1945 m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh);
1948 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs,
1949 &nsegs, BUS_DMA_NOWAIT);
1950 if (error != 0 && error != EFBIG) {
1951 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1957 /* XXX use m_collapse */
1958 mnew = m_defrag(m0, M_DONTWAIT);
1960 device_printf(sc->sc_dev,
1961 "could not defragment mbuf\n");
1967 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
1968 m0, segs, &nsegs, BUS_DMA_NOWAIT);
1970 device_printf(sc->sc_dev,
1971 "could not map mbuf (error %d)\n", error);
1980 DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n",
1981 ring->qid, ring->cur, m0->m_pkthdr.len, nsegs));
1983 /* first scatter/gather segment is used by the tx data command */
1984 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
1986 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
1987 ring->cur * sizeof (struct wpi_tx_cmd));
1988 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data));
1989 for (i = 1; i <= nsegs; i++) {
1990 desc->segs[i].addr = htole32(segs[i - 1].ds_addr);
1991 desc->segs[i].len = htole32(segs[i - 1].ds_len);
1994 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1995 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1996 BUS_DMASYNC_PREWRITE);
2001 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2002 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2008 * Process data waiting to be sent on the IFNET output queue
2011 wpi_start(struct ifnet *ifp)
2013 struct wpi_softc *sc = ifp->if_softc;
2016 wpi_start_locked(ifp);
2021 wpi_start_locked(struct ifnet *ifp)
2023 struct wpi_softc *sc = ifp->if_softc;
2024 struct ieee80211_node *ni;
2028 WPI_LOCK_ASSERT(sc);
2030 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2034 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2037 ac = M_WME_GETAC(m);
2038 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
2039 /* there is no place left in this ring */
2040 IFQ_DRV_PREPEND(&ifp->if_snd, m);
2041 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2044 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
2045 if (wpi_tx_data(sc, m, ni, ac) != 0) {
2046 ieee80211_free_node(ni);
2050 sc->sc_tx_timer = 5;
2055 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2056 const struct ieee80211_bpf_params *params)
2058 struct ieee80211com *ic = ni->ni_ic;
2059 struct ifnet *ifp = ic->ic_ifp;
2060 struct wpi_softc *sc = ifp->if_softc;
2062 /* prevent management frames from being sent if we're not ready */
2063 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2065 ieee80211_free_node(ni);
2070 /* management frames go into ring 0 */
2071 if (sc->txq[0].queued > sc->txq[0].count - 8) {
2072 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2075 ieee80211_free_node(ni);
2076 return ENOBUFS; /* XXX */
2080 if (wpi_tx_data(sc, m, ni, 0) != 0)
2082 sc->sc_tx_timer = 5;
2083 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
2090 ieee80211_free_node(ni);
2091 return EIO; /* XXX */
2095 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2097 struct wpi_softc *sc = ifp->if_softc;
2098 struct ieee80211com *ic = ifp->if_l2com;
2099 struct ifreq *ifr = (struct ifreq *) data;
2100 int error = 0, startall = 0;
2105 if ((ifp->if_flags & IFF_UP)) {
2106 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2107 wpi_init_locked(sc, 0);
2110 } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) ||
2111 (sc->flags & WPI_FLAG_HW_RADIO_OFF))
2112 wpi_stop_locked(sc);
2115 ieee80211_start_all(ic);
2118 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2121 error = ether_ioctl(ifp, cmd, data);
2131 * Extract various information from EEPROM.
2134 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2138 /* read the hardware capabilities, revision and SKU type */
2139 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1);
2140 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2);
2141 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1);
2143 /* read the regulatory domain */
2144 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4);
2146 /* read in the hw MAC address */
2147 wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6);
2149 /* read the list of authorized channels */
2150 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
2151 wpi_read_eeprom_channels(sc,i);
2153 /* read the power level calibration info for each group */
2154 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
2155 wpi_read_eeprom_group(sc,i);
2159 * Send a command to the firmware.
2162 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async)
2164 struct wpi_tx_ring *ring = &sc->cmdq;
2165 struct wpi_tx_desc *desc;
2166 struct wpi_tx_cmd *cmd;
2170 WPI_LOCK_ASSERT(sc);
2174 DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size,
2177 if (sc->flags & WPI_FLAG_BUSY) {
2178 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
2182 sc->flags|= WPI_FLAG_BUSY;
2184 KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes",
2187 desc = &ring->desc[ring->cur];
2188 cmd = &ring->cmd[ring->cur];
2192 cmd->qid = ring->qid;
2193 cmd->idx = ring->cur;
2194 memcpy(cmd->data, buf, size);
2196 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
2197 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2198 ring->cur * sizeof (struct wpi_tx_cmd));
2199 desc->segs[0].len = htole32(4 + size);
2202 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2203 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2206 sc->flags &= ~ WPI_FLAG_BUSY;
2210 return msleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
2214 wpi_wme_update(struct ieee80211com *ic)
2216 #define WPI_EXP2(v) htole16((1 << (v)) - 1)
2217 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
2218 struct wpi_softc *sc = ic->ic_ifp->if_softc;
2219 const struct wmeParams *wmep;
2220 struct wpi_wme_setup wme;
2223 /* don't override default WME values if WME is not actually enabled */
2224 if (!(ic->ic_flags & IEEE80211_F_WME))
2228 for (ac = 0; ac < WME_NUM_AC; ac++) {
2229 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
2230 wme.ac[ac].aifsn = wmep->wmep_aifsn;
2231 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin);
2232 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax);
2233 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit);
2235 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
2236 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin,
2237 wme.ac[ac].cwmax, wme.ac[ac].txop));
2239 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1);
2245 * Configure h/w multi-rate retries.
2248 wpi_mrr_setup(struct wpi_softc *sc)
2250 struct ifnet *ifp = sc->sc_ifp;
2251 struct ieee80211com *ic = ifp->if_l2com;
2252 struct wpi_mrr_setup mrr;
2255 memset(&mrr, 0, sizeof (struct wpi_mrr_setup));
2257 /* CCK rates (not used with 802.11a) */
2258 for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
2259 mrr.rates[i].flags = 0;
2260 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2261 /* fallback to the immediate lower CCK rate (if any) */
2262 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
2263 /* try one time at this rate before falling back to "next" */
2264 mrr.rates[i].ntries = 1;
2267 /* OFDM rates (not used with 802.11b) */
2268 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
2269 mrr.rates[i].flags = 0;
2270 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2271 /* fallback to the immediate lower OFDM rate (if any) */
2272 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */
2273 mrr.rates[i].next = (i == WPI_OFDM6) ?
2274 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
2275 WPI_OFDM6 : WPI_CCK2) :
2277 /* try one time at this rate before falling back to "next" */
2278 mrr.rates[i].ntries = 1;
2281 /* setup MRR for control frames */
2282 mrr.which = htole32(WPI_MRR_CTL);
2283 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2285 device_printf(sc->sc_dev,
2286 "could not setup MRR for control frames\n");
2290 /* setup MRR for data frames */
2291 mrr.which = htole32(WPI_MRR_DATA);
2292 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2294 device_printf(sc->sc_dev,
2295 "could not setup MRR for data frames\n");
2303 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
2305 struct wpi_cmd_led led;
2308 led.unit = htole32(100000); /* on/off in unit of 100ms */
2312 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
2316 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni)
2318 struct wpi_cmd_tsf tsf;
2321 memset(&tsf, 0, sizeof tsf);
2322 memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8);
2323 tsf.bintval = htole16(ni->ni_intval);
2324 tsf.lintval = htole16(10);
2326 /* compute remaining time until next beacon */
2327 val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */
2328 mod = le64toh(tsf.tstamp) % val;
2329 tsf.binitval = htole32((uint32_t)(val - mod));
2331 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0)
2332 device_printf(sc->sc_dev, "could not enable TSF\n");
2337 * Build a beacon frame that the firmware will broadcast periodically in
2338 * IBSS or HostAP modes.
2341 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
2343 struct ifnet *ifp = sc->sc_ifp;
2344 struct ieee80211com *ic = ifp->if_l2com;
2345 struct wpi_tx_ring *ring = &sc->cmdq;
2346 struct wpi_tx_desc *desc;
2347 struct wpi_tx_data *data;
2348 struct wpi_tx_cmd *cmd;
2349 struct wpi_cmd_beacon *bcn;
2350 struct ieee80211_beacon_offsets bo;
2352 bus_addr_t physaddr;
2355 desc = &ring->desc[ring->cur];
2356 data = &ring->data[ring->cur];
2358 m0 = ieee80211_beacon_alloc(ic, ni, &bo);
2360 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2364 cmd = &ring->cmd[ring->cur];
2365 cmd->code = WPI_CMD_SET_BEACON;
2367 cmd->qid = ring->qid;
2368 cmd->idx = ring->cur;
2370 bcn = (struct wpi_cmd_beacon *)cmd->data;
2371 memset(bcn, 0, sizeof (struct wpi_cmd_beacon));
2372 bcn->id = WPI_ID_BROADCAST;
2373 bcn->ofdm_mask = 0xff;
2374 bcn->cck_mask = 0x0f;
2375 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE);
2376 bcn->len = htole16(m0->m_pkthdr.len);
2377 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2378 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2379 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
2381 /* save and trim IEEE802.11 header */
2382 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh);
2383 m_adj(m0, sizeof (struct ieee80211_frame));
2385 /* assume beacon frame is contiguous */
2386 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *),
2387 m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0);
2389 device_printf(sc->sc_dev, "could not map beacon\n");
2396 /* first scatter/gather segment is used by the beacon command */
2397 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
2398 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2399 ring->cur * sizeof (struct wpi_tx_cmd));
2400 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon));
2401 desc->segs[1].addr = htole32(physaddr);
2402 desc->segs[1].len = htole32(m0->m_pkthdr.len);
2405 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2406 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2413 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
2415 struct ieee80211com *ic = vap->iv_ic;
2416 struct ieee80211_node *ni = vap->iv_bss;
2417 struct wpi_node_info node;
2421 /* update adapter's configuration */
2422 sc->config.associd = 0;
2423 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2424 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2425 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2426 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2427 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2430 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
2431 sc->config.cck_mask = 0;
2432 sc->config.ofdm_mask = 0x15;
2433 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
2434 sc->config.cck_mask = 0x03;
2435 sc->config.ofdm_mask = 0;
2437 /* XXX assume 802.11b/g */
2438 sc->config.cck_mask = 0x0f;
2439 sc->config.ofdm_mask = 0x15;
2442 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan,
2443 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask));
2444 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2445 sizeof (struct wpi_config), 1);
2447 device_printf(sc->sc_dev, "could not configure\n");
2451 /* configuration has changed, set Tx power accordingly */
2452 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) {
2453 device_printf(sc->sc_dev, "could not set Tx power\n");
2457 /* add default node */
2458 memset(&node, 0, sizeof node);
2459 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid);
2460 node.id = WPI_ID_BSS;
2461 node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2462 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2463 node.action = htole32(WPI_ACTION_SET_RATE);
2464 node.antenna = WPI_ANTENNA_BOTH;
2465 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
2467 device_printf(sc->sc_dev, "could not add BSS node\n");
2473 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
2475 struct ieee80211com *ic = vap->iv_ic;
2476 struct ieee80211_node *ni = vap->iv_bss;
2479 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
2480 /* link LED blinks while monitoring */
2481 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
2485 wpi_enable_tsf(sc, ni);
2487 /* update adapter's configuration */
2488 sc->config.associd = htole16(ni->ni_associd & ~0xc000);
2489 /* short preamble/slot time are negotiated when associating */
2490 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE |
2492 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2493 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT);
2494 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2495 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE);
2496 sc->config.filter |= htole32(WPI_FILTER_BSS);
2498 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
2500 DPRINTF(("config chan %d flags %x\n", sc->config.chan,
2502 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct
2505 device_printf(sc->sc_dev, "could not update configuration\n");
2509 error = wpi_set_txpower(sc, ni->ni_chan, 1);
2511 device_printf(sc->sc_dev, "could set txpower\n");
2515 /* link LED always on while associated */
2516 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
2518 /* start automatic rate control timer */
2519 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
2525 * Send a scan request to the firmware. Since this command is huge, we map it
2526 * into a mbufcluster instead of using the pre-allocated set of commands. Note,
2527 * much of this code is similar to that in wpi_cmd but because we must manually
2528 * construct the probe & channels, we duplicate what's needed here. XXX In the
2529 * future, this function should be modified to use wpi_cmd to help cleanup the
2533 wpi_scan(struct wpi_softc *sc)
2535 struct ifnet *ifp = sc->sc_ifp;
2536 struct ieee80211com *ic = ifp->if_l2com;
2537 struct ieee80211_scan_state *ss = ic->ic_scan;
2538 struct wpi_tx_ring *ring = &sc->cmdq;
2539 struct wpi_tx_desc *desc;
2540 struct wpi_tx_data *data;
2541 struct wpi_tx_cmd *cmd;
2542 struct wpi_scan_hdr *hdr;
2543 struct wpi_scan_chan *chan;
2544 struct ieee80211_frame *wh;
2545 struct ieee80211_rateset *rs;
2546 struct ieee80211_channel *c;
2547 enum ieee80211_phymode mode;
2549 int nrates, pktlen, error, i, nssid;
2550 bus_addr_t physaddr;
2552 desc = &ring->desc[ring->cur];
2553 data = &ring->data[ring->cur];
2555 data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
2556 if (data->m == NULL) {
2557 device_printf(sc->sc_dev,
2558 "could not allocate mbuf for scan command\n");
2562 cmd = mtod(data->m, struct wpi_tx_cmd *);
2563 cmd->code = WPI_CMD_SCAN;
2565 cmd->qid = ring->qid;
2566 cmd->idx = ring->cur;
2568 hdr = (struct wpi_scan_hdr *)cmd->data;
2569 memset(hdr, 0, sizeof(struct wpi_scan_hdr));
2572 * Move to the next channel if no packets are received within 5 msecs
2573 * after sending the probe request (this helps to reduce the duration
2576 hdr->quiet = htole16(5);
2577 hdr->threshold = htole16(1);
2579 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
2580 /* send probe requests at 6Mbps */
2581 hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6];
2583 /* Enable crc checking */
2584 hdr->promotion = htole16(1);
2586 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO);
2587 /* send probe requests at 1Mbps */
2588 hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1];
2590 hdr->tx.id = WPI_ID_BROADCAST;
2591 hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE);
2592 hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ);
2594 memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids));
2595 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
2596 for (i = 0; i < nssid; i++) {
2597 hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID;
2598 hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32);
2599 memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid,
2600 hdr->scan_essids[i].esslen);
2602 if (wpi_debug & WPI_DEBUG_SCANNING) {
2603 printf("Scanning Essid: ");
2604 ieee80211_print_essid(hdr->scan_essids[i].essid,
2605 hdr->scan_essids[i].esslen);
2612 * Build a probe request frame. Most of the following code is a
2613 * copy & paste of what is done in net80211.
2615 wh = (struct ieee80211_frame *)&hdr->scan_essids[4];
2616 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2617 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2618 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
2619 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
2620 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
2621 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
2622 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
2623 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
2625 frm = (uint8_t *)(wh + 1);
2627 /* add essid IE, the hardware will fill this in for us */
2628 *frm++ = IEEE80211_ELEMID_SSID;
2631 mode = ieee80211_chan2mode(ic->ic_curchan);
2632 rs = &ic->ic_sup_rates[mode];
2634 /* add supported rates IE */
2635 *frm++ = IEEE80211_ELEMID_RATES;
2636 nrates = rs->rs_nrates;
2637 if (nrates > IEEE80211_RATE_SIZE)
2638 nrates = IEEE80211_RATE_SIZE;
2640 memcpy(frm, rs->rs_rates, nrates);
2643 /* add supported xrates IE */
2644 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
2645 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
2646 *frm++ = IEEE80211_ELEMID_XRATES;
2648 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
2652 /* setup length of probe request */
2653 hdr->tx.len = htole16(frm - (uint8_t *)wh);
2656 * Construct information about the channel that we
2657 * want to scan. The firmware expects this to be directly
2658 * after the scan probe request
2661 chan = (struct wpi_scan_chan *)frm;
2662 chan->chan = ieee80211_chan2ieee(ic, c);
2664 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2665 chan->flags |= WPI_CHAN_ACTIVE;
2667 chan->flags |= WPI_CHAN_DIRECT;
2669 chan->gain_dsp = 0x6e; /* Default level */
2670 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2671 chan->active = htole16(10);
2672 chan->passive = htole16(ss->ss_maxdwell);
2673 chan->gain_radio = 0x3b;
2675 chan->active = htole16(20);
2676 chan->passive = htole16(ss->ss_maxdwell);
2677 chan->gain_radio = 0x28;
2680 DPRINTFN(WPI_DEBUG_SCANNING,
2681 ("Scanning %u Passive: %d\n",
2683 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2688 frm += sizeof (struct wpi_scan_chan);
2690 // XXX All Channels....
2691 for (c = &ic->ic_channels[1];
2692 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) {
2693 if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags)
2696 chan->chan = ieee80211_chan2ieee(ic, c);
2698 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2699 chan->flags |= WPI_CHAN_ACTIVE;
2700 if (ic->ic_des_ssid[0].len != 0)
2701 chan->flags |= WPI_CHAN_DIRECT;
2703 chan->gain_dsp = 0x6e; /* Default level */
2704 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2705 chan->active = htole16(10);
2706 chan->passive = htole16(110);
2707 chan->gain_radio = 0x3b;
2709 chan->active = htole16(20);
2710 chan->passive = htole16(120);
2711 chan->gain_radio = 0x28;
2714 DPRINTFN(WPI_DEBUG_SCANNING,
2715 ("Scanning %u Passive: %d\n",
2717 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2722 frm += sizeof (struct wpi_scan_chan);
2726 hdr->len = htole16(frm - (uint8_t *)hdr);
2727 pktlen = frm - (uint8_t *)cmd;
2729 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen,
2730 wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT);
2732 device_printf(sc->sc_dev, "could not map scan command\n");
2738 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);
2739 desc->segs[0].addr = htole32(physaddr);
2740 desc->segs[0].len = htole32(pktlen);
2742 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2743 BUS_DMASYNC_PREWRITE);
2744 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2747 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2748 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2750 sc->sc_scan_timer = 5;
2751 return 0; /* will be notified async. of failure/success */
2755 * Configure the card to listen to a particular channel, this transisions the
2756 * card in to being able to receive frames from remote devices.
2759 wpi_config(struct wpi_softc *sc)
2761 struct ifnet *ifp = sc->sc_ifp;
2762 struct ieee80211com *ic = ifp->if_l2com;
2763 struct wpi_power power;
2764 struct wpi_bluetooth bluetooth;
2765 struct wpi_node_info node;
2768 /* set power mode */
2769 memset(&power, 0, sizeof power);
2770 power.flags = htole32(WPI_POWER_CAM|0x8);
2771 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2773 device_printf(sc->sc_dev, "could not set power mode\n");
2777 /* configure bluetooth coexistence */
2778 memset(&bluetooth, 0, sizeof bluetooth);
2779 bluetooth.flags = 3;
2780 bluetooth.lead = 0xaa;
2782 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth,
2785 device_printf(sc->sc_dev,
2786 "could not configure bluetooth coexistence\n");
2790 /* configure adapter */
2791 memset(&sc->config, 0, sizeof (struct wpi_config));
2792 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp));
2793 /*set default channel*/
2794 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan));
2795 sc->config.flags = htole32(WPI_CONFIG_TSF);
2796 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2797 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2800 sc->config.filter = 0;
2801 switch (ic->ic_opmode) {
2802 case IEEE80211_M_STA:
2803 case IEEE80211_M_WDS: /* No know setup, use STA for now */
2804 sc->config.mode = WPI_MODE_STA;
2805 sc->config.filter |= htole32(WPI_FILTER_MULTICAST);
2807 case IEEE80211_M_IBSS:
2808 case IEEE80211_M_AHDEMO:
2809 sc->config.mode = WPI_MODE_IBSS;
2810 sc->config.filter |= htole32(WPI_FILTER_BEACON |
2811 WPI_FILTER_MULTICAST);
2813 case IEEE80211_M_HOSTAP:
2814 sc->config.mode = WPI_MODE_HOSTAP;
2816 case IEEE80211_M_MONITOR:
2817 sc->config.mode = WPI_MODE_MONITOR;
2818 sc->config.filter |= htole32(WPI_FILTER_MULTICAST |
2819 WPI_FILTER_CTL | WPI_FILTER_PROMISC);
2822 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2825 sc->config.cck_mask = 0x0f; /* not yet negotiated */
2826 sc->config.ofdm_mask = 0xff; /* not yet negotiated */
2827 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2828 sizeof (struct wpi_config), 0);
2830 device_printf(sc->sc_dev, "configure command failed\n");
2834 /* configuration has changed, set Tx power accordingly */
2835 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) {
2836 device_printf(sc->sc_dev, "could not set Tx power\n");
2840 /* add broadcast node */
2841 memset(&node, 0, sizeof node);
2842 IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr);
2843 node.id = WPI_ID_BROADCAST;
2844 node.rate = wpi_plcp_signal(2);
2845 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0);
2847 device_printf(sc->sc_dev, "could not add broadcast node\n");
2851 /* Setup rate scalling */
2852 error = wpi_mrr_setup(sc);
2854 device_printf(sc->sc_dev, "could not setup MRR\n");
2862 wpi_stop_master(struct wpi_softc *sc)
2867 DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n"));
2869 tmp = WPI_READ(sc, WPI_RESET);
2870 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET);
2872 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2873 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
2874 return; /* already asleep */
2876 for (ntries = 0; ntries < 100; ntries++) {
2877 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
2881 if (ntries == 100) {
2882 device_printf(sc->sc_dev, "timeout waiting for master\n");
2887 wpi_power_up(struct wpi_softc *sc)
2893 tmp = wpi_mem_read(sc, WPI_MEM_POWER);
2894 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
2897 for (ntries = 0; ntries < 5000; ntries++) {
2898 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
2902 if (ntries == 5000) {
2903 device_printf(sc->sc_dev,
2904 "timeout waiting for NIC to power up\n");
2911 wpi_reset(struct wpi_softc *sc)
2916 DPRINTFN(WPI_DEBUG_HW,
2917 ("Resetting the card - clearing any uploaded firmware\n"));
2919 /* clear any pending interrupts */
2920 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
2922 tmp = WPI_READ(sc, WPI_PLL_CTL);
2923 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
2925 tmp = WPI_READ(sc, WPI_CHICKEN);
2926 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
2928 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2929 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
2931 /* wait for clock stabilization */
2932 for (ntries = 0; ntries < 25000; ntries++) {
2933 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
2937 if (ntries == 25000) {
2938 device_printf(sc->sc_dev,
2939 "timeout waiting for clock stabilization\n");
2943 /* initialize EEPROM */
2944 tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
2946 if ((tmp & WPI_EEPROM_VERSION) == 0) {
2947 device_printf(sc->sc_dev, "EEPROM not found\n");
2950 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
2956 wpi_hw_config(struct wpi_softc *sc)
2960 /* voodoo from the Linux "driver".. */
2961 hw = WPI_READ(sc, WPI_HWCONFIG);
2963 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
2964 if ((rev & 0xc0) == 0x40)
2965 hw |= WPI_HW_ALM_MB;
2966 else if (!(rev & 0x80))
2967 hw |= WPI_HW_ALM_MM;
2969 if (sc->cap == 0x80)
2970 hw |= WPI_HW_SKU_MRC;
2972 hw &= ~WPI_HW_REV_D;
2973 if ((le16toh(sc->rev) & 0xf0) == 0xd0)
2977 hw |= WPI_HW_TYPE_B;
2979 WPI_WRITE(sc, WPI_HWCONFIG, hw);
2983 wpi_rfkill_resume(struct wpi_softc *sc)
2985 struct ifnet *ifp = sc->sc_ifp;
2986 struct ieee80211com *ic = ifp->if_l2com;
2987 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2990 /* enable firmware again */
2991 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
2992 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
2994 /* wait for thermal sensors to calibrate */
2995 for (ntries = 0; ntries < 1000; ntries++) {
2996 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3001 if (ntries == 1000) {
3002 device_printf(sc->sc_dev,
3003 "timeout waiting for thermal calibration\n");
3007 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3009 if (wpi_config(sc) != 0) {
3010 device_printf(sc->sc_dev, "device config failed\n");
3015 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3016 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3017 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3020 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3021 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
3022 ieee80211_beacon_miss(ic);
3023 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
3025 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
3027 ieee80211_scan_next(vap);
3028 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3032 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3036 wpi_init_locked(struct wpi_softc *sc, int force)
3038 struct ifnet *ifp = sc->sc_ifp;
3042 wpi_stop_locked(sc);
3043 (void)wpi_reset(sc);
3046 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
3048 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
3049 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
3052 (void)wpi_power_up(sc);
3057 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr);
3058 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr +
3059 offsetof(struct wpi_shared, next));
3060 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7);
3061 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
3066 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
3067 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
3068 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
3069 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
3070 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
3071 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
3072 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
3074 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr);
3075 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
3077 for (qid = 0; qid < 6; qid++) {
3078 WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
3079 WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
3080 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
3084 /* clear "radio off" and "disable command" bits (reversed logic) */
3085 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3086 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3087 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3089 /* clear any pending interrupts */
3090 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
3092 /* enable interrupts */
3093 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
3095 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3096 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3098 if ((wpi_load_firmware(sc)) != 0) {
3099 device_printf(sc->sc_dev,
3100 "A problem occurred loading the firmware to the driver\n");
3104 /* At this point the firmware is up and running. If the hardware
3105 * RF switch is turned off thermal calibration will fail, though
3106 * the card is still happy to continue to accept commands, catch
3107 * this case and schedule a task to watch for it to be turned on.
3110 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3114 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
3115 device_printf(sc->sc_dev,"Radio Transmitter is switched off\n");
3119 /* wait for thermal sensors to calibrate */
3120 for (ntries = 0; ntries < 1000; ntries++) {
3121 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3126 if (ntries == 1000) {
3127 device_printf(sc->sc_dev,
3128 "timeout waiting for thermal sensors calibration\n");
3131 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3133 if (wpi_config(sc) != 0) {
3134 device_printf(sc->sc_dev, "device config failed\n");
3138 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3139 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3141 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3147 struct wpi_softc *sc = arg;
3148 struct ifnet *ifp = sc->sc_ifp;
3149 struct ieee80211com *ic = ifp->if_l2com;
3152 wpi_init_locked(sc, 0);
3155 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3156 ieee80211_start_all(ic); /* start all vaps */
3160 wpi_stop_locked(struct wpi_softc *sc)
3162 struct ifnet *ifp = sc->sc_ifp;
3166 sc->sc_tx_timer = 0;
3167 sc->sc_scan_timer = 0;
3168 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
3169 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3170 callout_stop(&sc->watchdog_to);
3171 callout_stop(&sc->calib_to);
3174 /* disable interrupts */
3175 WPI_WRITE(sc, WPI_MASK, 0);
3176 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
3177 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
3178 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
3181 wpi_mem_write(sc, WPI_MEM_MODE, 0);
3184 /* reset all Tx rings */
3185 for (ac = 0; ac < 4; ac++)
3186 wpi_reset_tx_ring(sc, &sc->txq[ac]);
3187 wpi_reset_tx_ring(sc, &sc->cmdq);
3190 wpi_reset_rx_ring(sc, &sc->rxq);
3193 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
3198 wpi_stop_master(sc);
3200 tmp = WPI_READ(sc, WPI_RESET);
3201 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
3202 sc->flags &= ~WPI_FLAG_BUSY;
3206 wpi_stop(struct wpi_softc *sc)
3209 wpi_stop_locked(sc);
3214 wpi_newassoc(struct ieee80211_node *ni, int isnew)
3216 struct ieee80211vap *vap = ni->ni_vap;
3217 struct wpi_vap *wvp = WPI_VAP(vap);
3219 ieee80211_amrr_node_init(&wvp->amrr, &WPI_NODE(ni)->amn, ni);
3223 wpi_calib_timeout(void *arg)
3225 struct wpi_softc *sc = arg;
3226 struct ifnet *ifp = sc->sc_ifp;
3227 struct ieee80211com *ic = ifp->if_l2com;
3228 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3231 if (vap->iv_state != IEEE80211_S_RUN)
3234 /* update sensor data */
3235 temp = (int)WPI_READ(sc, WPI_TEMPERATURE);
3236 DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp));
3238 wpi_power_calibration(sc, temp);
3240 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
3244 * This function is called periodically (every 60 seconds) to adjust output
3245 * power to temperature changes.
3248 wpi_power_calibration(struct wpi_softc *sc, int temp)
3250 struct ifnet *ifp = sc->sc_ifp;
3251 struct ieee80211com *ic = ifp->if_l2com;
3252 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3254 /* sanity-check read value */
3255 if (temp < -260 || temp > 25) {
3256 /* this can't be correct, ignore */
3257 DPRINTFN(WPI_DEBUG_TEMP,
3258 ("out-of-range temperature reported: %d\n", temp));
3262 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp));
3264 /* adjust Tx power if need be */
3265 if (abs(temp - sc->temp) <= 6)
3270 if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) {
3271 /* just warn, too bad for the automatic calibration... */
3272 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3277 * Read the eeprom to find out what channels are valid for the given
3278 * band and update net80211 with what we find.
3281 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
3283 struct ifnet *ifp = sc->sc_ifp;
3284 struct ieee80211com *ic = ifp->if_l2com;
3285 const struct wpi_chan_band *band = &wpi_bands[n];
3286 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND];
3287 struct ieee80211_channel *c;
3288 int chan, i, passive;
3290 wpi_read_prom_data(sc, band->addr, channels,
3291 band->nchan * sizeof (struct wpi_eeprom_chan));
3293 for (i = 0; i < band->nchan; i++) {
3294 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
3295 DPRINTFN(WPI_DEBUG_HW,
3296 ("Channel Not Valid: %d, band %d\n",
3302 chan = band->chan[i];
3303 c = &ic->ic_channels[ic->ic_nchans++];
3305 /* is active scan allowed on this channel? */
3306 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) {
3307 passive = IEEE80211_CHAN_PASSIVE;
3310 if (n == 0) { /* 2GHz band */
3312 c->ic_freq = ieee80211_ieee2mhz(chan,
3313 IEEE80211_CHAN_2GHZ);
3314 c->ic_flags = IEEE80211_CHAN_B | passive;
3316 c = &ic->ic_channels[ic->ic_nchans++];
3318 c->ic_freq = ieee80211_ieee2mhz(chan,
3319 IEEE80211_CHAN_2GHZ);
3320 c->ic_flags = IEEE80211_CHAN_G | passive;
3322 } else { /* 5GHz band */
3324 * Some 3945ABG adapters support channels 7, 8, 11
3325 * and 12 in the 2GHz *and* 5GHz bands.
3326 * Because of limitations in our net80211(9) stack,
3327 * we can't support these channels in 5GHz band.
3328 * XXX not true; just need to map to proper frequency
3334 c->ic_freq = ieee80211_ieee2mhz(chan,
3335 IEEE80211_CHAN_5GHZ);
3336 c->ic_flags = IEEE80211_CHAN_A | passive;
3339 /* save maximum allowed power for this channel */
3340 sc->maxpwr[chan] = channels[i].maxpwr;
3343 // XXX We can probably use this an get rid of maxpwr - ben 20070617
3344 ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr;
3345 //ic->ic_channels[chan].ic_minpower...
3346 //ic->ic_channels[chan].ic_maxregtxpower...
3349 DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d"
3350 " passive=%d, offset %d\n", chan, c->ic_freq,
3351 channels[i].flags, sc->maxpwr[chan],
3352 (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0,
3358 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
3360 struct wpi_power_group *group = &sc->groups[n];
3361 struct wpi_eeprom_group rgroup;
3364 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup,
3367 /* save power group information */
3368 group->chan = rgroup.chan;
3369 group->maxpwr = rgroup.maxpwr;
3370 /* temperature at which the samples were taken */
3371 group->temp = (int16_t)le16toh(rgroup.temp);
3373 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3374 group->chan, group->maxpwr, group->temp));
3376 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
3377 group->samples[i].index = rgroup.samples[i].index;
3378 group->samples[i].power = rgroup.samples[i].power;
3380 DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3381 group->samples[i].index, group->samples[i].power));
3386 * Update Tx power to match what is defined for channel `c'.
3389 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async)
3391 struct ifnet *ifp = sc->sc_ifp;
3392 struct ieee80211com *ic = ifp->if_l2com;
3393 struct wpi_power_group *group;
3394 struct wpi_cmd_txpower txpower;
3398 /* get channel number */
3399 chan = ieee80211_chan2ieee(ic, c);
3401 /* find the power group to which this channel belongs */
3402 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3403 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3404 if (chan <= group->chan)
3407 group = &sc->groups[0];
3409 memset(&txpower, 0, sizeof txpower);
3410 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1;
3411 txpower.channel = htole16(chan);
3413 /* set Tx power for all OFDM and CCK rates */
3414 for (i = 0; i <= 11 ; i++) {
3415 /* retrieve Tx power for this channel/rate combination */
3416 int idx = wpi_get_power_index(sc, group, c,
3417 wpi_ridx_to_rate[i]);
3419 txpower.rates[i].rate = wpi_ridx_to_plcp[i];
3421 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3422 txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx];
3423 txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx];
3425 txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx];
3426 txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx];
3428 DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3429 chan, wpi_ridx_to_rate[i], idx));
3432 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async);
3436 * Determine Tx power index for a given channel/rate combination.
3437 * This takes into account the regulatory information from EEPROM and the
3438 * current temperature.
3441 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3442 struct ieee80211_channel *c, int rate)
3444 /* fixed-point arithmetic division using a n-bit fractional part */
3445 #define fdivround(a, b, n) \
3446 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3448 /* linear interpolation */
3449 #define interpolate(x, x1, y1, x2, y2, n) \
3450 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3452 struct ifnet *ifp = sc->sc_ifp;
3453 struct ieee80211com *ic = ifp->if_l2com;
3454 struct wpi_power_sample *sample;
3458 /* get channel number */
3459 chan = ieee80211_chan2ieee(ic, c);
3461 /* default power is group's maximum power - 3dB */
3462 pwr = group->maxpwr / 2;
3464 /* decrease power for highest OFDM rates to reduce distortion */
3466 case 72: /* 36Mb/s */
3467 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5;
3469 case 96: /* 48Mb/s */
3470 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3472 case 108: /* 54Mb/s */
3473 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3477 /* never exceed channel's maximum allowed Tx power */
3478 pwr = min(pwr, sc->maxpwr[chan]);
3480 /* retrieve power index into gain tables from samples */
3481 for (sample = group->samples; sample < &group->samples[3]; sample++)
3482 if (pwr > sample[1].power)
3484 /* fixed-point linear interpolation using a 19-bit fractional part */
3485 idx = interpolate(pwr, sample[0].power, sample[0].index,
3486 sample[1].power, sample[1].index, 19);
3489 * Adjust power index based on current temperature
3490 * - if colder than factory-calibrated: decreate output power
3491 * - if warmer than factory-calibrated: increase output power
3493 idx -= (sc->temp - group->temp) * 11 / 100;
3495 /* decrease power for CCK rates (-5dB) */
3496 if (!WPI_RATE_IS_OFDM(rate))
3499 /* keep power index in a valid range */
3502 if (idx > WPI_MAX_PWR_INDEX)
3503 return WPI_MAX_PWR_INDEX;
3511 * Called by net80211 framework to indicate that a scan
3512 * is starting. This function doesn't actually do the scan,
3513 * wpi_scan_curchan starts things off. This function is more
3514 * of an early warning from the framework we should get ready
3518 wpi_scan_start(struct ieee80211com *ic)
3520 struct ifnet *ifp = ic->ic_ifp;
3521 struct wpi_softc *sc = ifp->if_softc;
3524 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3529 * Called by the net80211 framework, indicates that the
3530 * scan has ended. If there is a scan in progress on the card
3531 * then it should be aborted.
3534 wpi_scan_end(struct ieee80211com *ic)
3540 * Called by the net80211 framework to indicate to the driver
3541 * that the channel should be changed
3544 wpi_set_channel(struct ieee80211com *ic)
3546 struct ifnet *ifp = ic->ic_ifp;
3547 struct wpi_softc *sc = ifp->if_softc;
3551 * Only need to set the channel in Monitor mode. AP scanning and auth
3552 * are already taken care of by their respective firmware commands.
3554 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
3555 error = wpi_config(sc);
3557 device_printf(sc->sc_dev,
3558 "error %d settting channel\n", error);
3563 * Called by net80211 to indicate that we need to scan the current
3564 * channel. The channel is previously be set via the wpi_set_channel
3568 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3570 struct ieee80211vap *vap = ss->ss_vap;
3571 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3572 struct wpi_softc *sc = ifp->if_softc;
3576 ieee80211_cancel_scan(vap);
3581 * Called by the net80211 framework to indicate
3582 * the minimum dwell time has been met, terminate the scan.
3583 * We don't actually terminate the scan as the firmware will notify
3584 * us when it's finished and we have no way to interrupt it.
3587 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
3589 /* NB: don't try to abort scan; wait for firmware to finish */
3593 wpi_hwreset(void *arg, int pending)
3595 struct wpi_softc *sc = arg;
3598 wpi_init_locked(sc, 0);
3603 wpi_rfreset(void *arg, int pending)
3605 struct wpi_softc *sc = arg;
3608 wpi_rfkill_resume(sc);
3613 * Allocate DMA-safe memory for firmware transfer.
3616 wpi_alloc_fwmem(struct wpi_softc *sc)
3618 /* allocate enough contiguous space to store text and data */
3619 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
3620 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1,
3625 wpi_free_fwmem(struct wpi_softc *sc)
3627 wpi_dma_contig_free(&sc->fw_dma);
3631 * Called every second, wpi_watchdog used by the watch dog timer
3632 * to check that the card is still alive
3635 wpi_watchdog(void *arg)
3637 struct wpi_softc *sc = arg;
3638 struct ifnet *ifp = sc->sc_ifp;
3639 struct ieee80211com *ic = ifp->if_l2com;
3642 DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n"));
3644 if (sc->flags & WPI_FLAG_HW_RADIO_OFF) {
3645 /* No need to lock firmware memory */
3646 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3648 if ((tmp & 0x1) == 0) {
3649 /* Radio kill switch is still off */
3650 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3654 device_printf(sc->sc_dev, "Hardware Switch Enabled\n");
3655 ieee80211_runtask(ic, &sc->sc_radiotask);
3659 if (sc->sc_tx_timer > 0) {
3660 if (--sc->sc_tx_timer == 0) {
3661 device_printf(sc->sc_dev,"device timeout\n");
3663 ieee80211_runtask(ic, &sc->sc_restarttask);
3666 if (sc->sc_scan_timer > 0) {
3667 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3668 if (--sc->sc_scan_timer == 0 && vap != NULL) {
3669 device_printf(sc->sc_dev,"scan timeout\n");
3670 ieee80211_cancel_scan(vap);
3671 ieee80211_runtask(ic, &sc->sc_restarttask);
3675 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3676 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3680 static const char *wpi_cmd_str(int cmd)
3683 case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD";
3684 case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE";
3685 case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE";
3686 case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME";
3687 case WPI_CMD_TSF: return "WPI_CMD_TSF";
3688 case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE";
3689 case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA";
3690 case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP";
3691 case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED";
3692 case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE";
3693 case WPI_CMD_SCAN: return "WPI_CMD_SCAN";
3694 case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON";
3695 case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER";
3696 case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH";
3699 KASSERT(1, ("Unknown Command: %d\n", cmd));
3700 return "UNKNOWN CMD"; /* Make the compiler happy */
3705 MODULE_DEPEND(wpi, pci, 1, 1, 1);
3706 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3707 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
3708 MODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1);