2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #define VERSION "20071127"
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
25 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
27 * The 3945ABG network adapter doesn't use traditional hardware as
28 * many other adaptors do. Instead at run time the eeprom is set into a known
29 * state and told to load boot firmware. The boot firmware loads an init and a
30 * main binary firmware image into SRAM on the card via DMA.
31 * Once the firmware is loaded, the driver/hw then
32 * communicate by way of circular dma rings via the SRAM to the firmware.
34 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
35 * The 4 tx data rings allow for prioritization QoS.
37 * The rx data ring consists of 32 dma buffers. Two registers are used to
38 * indicate where in the ring the driver and the firmware are up to. The
39 * driver sets the initial read index (reg1) and the initial write index (reg2),
40 * the firmware updates the read index (reg1) on rx of a packet and fires an
41 * interrupt. The driver then processes the buffers starting at reg1 indicating
42 * to the firmware which buffers have been accessed by updating reg2. At the
43 * same time allocating new memory for the processed buffer.
45 * A similar thing happens with the tx rings. The difference is the firmware
46 * stop processing buffers once the queue is full and until confirmation
47 * of a successful transmition (tx_intr) has occurred.
49 * The command ring operates in the same manner as the tx queues.
51 * All communication direct to the card (ie eeprom) is classed as Stage1
54 * All communication via the firmware to the card is classed as State2.
55 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
56 * firmware. The bootstrap firmware and runtime firmware are loaded
57 * from host memory via dma to the card then told to execute. From this point
58 * on the majority of communications between the driver and the card goes
64 #include <sys/param.h>
65 #include <sys/sysctl.h>
66 #include <sys/sockio.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/systm.h>
71 #include <sys/malloc.h>
72 #include <sys/queue.h>
73 #include <sys/taskqueue.h>
74 #include <sys/module.h>
76 #include <sys/endian.h>
77 #include <sys/linker.h>
78 #include <sys/firmware.h>
80 #include <machine/bus.h>
81 #include <machine/resource.h>
84 #include <dev/pci/pcireg.h>
85 #include <dev/pci/pcivar.h>
89 #include <net/if_arp.h>
90 #include <net/ethernet.h>
91 #include <net/if_dl.h>
92 #include <net/if_media.h>
93 #include <net/if_types.h>
95 #include <net80211/ieee80211_var.h>
96 #include <net80211/ieee80211_radiotap.h>
97 #include <net80211/ieee80211_regdomain.h>
98 #include <net80211/ieee80211_ratectl.h>
100 #include <netinet/in.h>
101 #include <netinet/in_systm.h>
102 #include <netinet/in_var.h>
103 #include <netinet/ip.h>
104 #include <netinet/if_ether.h>
106 #include <dev/wpi/if_wpireg.h>
107 #include <dev/wpi/if_wpivar.h>
112 #define DPRINTF(x) do { if (wpi_debug != 0) printf x; } while (0)
113 #define DPRINTFN(n, x) do { if (wpi_debug & n) printf x; } while (0)
114 #define WPI_DEBUG_SET (wpi_debug != 0)
117 WPI_DEBUG_UNUSED = 0x00000001, /* Unused */
118 WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */
119 WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/
120 WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */
121 WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/
122 WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */
123 WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */
124 WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */
125 WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */
126 WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */
127 WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */
128 WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */
129 WPI_DEBUG_ANY = 0xffffffff
132 static int wpi_debug = 0;
133 SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level");
134 TUNABLE_INT("debug.wpi", &wpi_debug);
138 #define DPRINTFN(n, x)
139 #define WPI_DEBUG_SET 0
149 static const struct wpi_ident wpi_ident_table[] = {
150 /* The below entries support ABG regardless of the subid */
151 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
152 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
153 /* The below entries only support BG */
154 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
155 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
156 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
157 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
161 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
162 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
163 const uint8_t [IEEE80211_ADDR_LEN],
164 const uint8_t [IEEE80211_ADDR_LEN]);
165 static void wpi_vap_delete(struct ieee80211vap *);
166 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
167 void **, bus_size_t, bus_size_t, int);
168 static void wpi_dma_contig_free(struct wpi_dma_info *);
169 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
170 static int wpi_alloc_shared(struct wpi_softc *);
171 static void wpi_free_shared(struct wpi_softc *);
172 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
173 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
174 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
175 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
177 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
178 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
179 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
180 static void wpi_mem_lock(struct wpi_softc *);
181 static void wpi_mem_unlock(struct wpi_softc *);
182 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
183 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
184 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
185 const uint32_t *, int);
186 static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
187 static int wpi_alloc_fwmem(struct wpi_softc *);
188 static void wpi_free_fwmem(struct wpi_softc *);
189 static int wpi_load_firmware(struct wpi_softc *);
190 static void wpi_unload_firmware(struct wpi_softc *);
191 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int);
192 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *,
193 struct wpi_rx_data *);
194 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *);
195 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *);
196 static void wpi_notif_intr(struct wpi_softc *);
197 static void wpi_intr(void *);
198 static uint8_t wpi_plcp_signal(int);
199 static void wpi_watchdog(void *);
200 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
201 struct ieee80211_node *, int);
202 static void wpi_start(struct ifnet *);
203 static void wpi_start_locked(struct ifnet *);
204 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
205 const struct ieee80211_bpf_params *);
206 static void wpi_scan_start(struct ieee80211com *);
207 static void wpi_scan_end(struct ieee80211com *);
208 static void wpi_set_channel(struct ieee80211com *);
209 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
210 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
211 static int wpi_ioctl(struct ifnet *, u_long, caddr_t);
212 static void wpi_read_eeprom(struct wpi_softc *,
213 uint8_t macaddr[IEEE80211_ADDR_LEN]);
214 static void wpi_read_eeprom_channels(struct wpi_softc *, int);
215 static void wpi_read_eeprom_group(struct wpi_softc *, int);
216 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int);
217 static int wpi_wme_update(struct ieee80211com *);
218 static int wpi_mrr_setup(struct wpi_softc *);
219 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
220 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *);
222 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
224 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
225 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
226 static int wpi_scan(struct wpi_softc *);
227 static int wpi_config(struct wpi_softc *);
228 static void wpi_stop_master(struct wpi_softc *);
229 static int wpi_power_up(struct wpi_softc *);
230 static int wpi_reset(struct wpi_softc *);
231 static void wpi_hwreset(void *, int);
232 static void wpi_rfreset(void *, int);
233 static void wpi_hw_config(struct wpi_softc *);
234 static void wpi_init(void *);
235 static void wpi_init_locked(struct wpi_softc *, int);
236 static void wpi_stop(struct wpi_softc *);
237 static void wpi_stop_locked(struct wpi_softc *);
239 static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
241 static void wpi_calib_timeout(void *);
242 static void wpi_power_calibration(struct wpi_softc *, int);
243 static int wpi_get_power_index(struct wpi_softc *,
244 struct wpi_power_group *, struct ieee80211_channel *, int);
246 static const char *wpi_cmd_str(int);
248 static int wpi_probe(device_t);
249 static int wpi_attach(device_t);
250 static int wpi_detach(device_t);
251 static int wpi_shutdown(device_t);
252 static int wpi_suspend(device_t);
253 static int wpi_resume(device_t);
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 MODULE_VERSION(wpi, 1);
280 static const uint8_t wpi_ridx_to_plcp[] = {
281 /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
282 /* R1-R4 (ral/ural is R4-R1) */
283 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
284 /* CCK: device-dependent */
287 static const uint8_t wpi_ridx_to_rate[] = {
288 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */
289 2, 4, 11, 22 /*CCK */
294 wpi_probe(device_t dev)
296 const struct wpi_ident *ident;
298 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
299 if (pci_get_vendor(dev) == ident->vendor &&
300 pci_get_device(dev) == ident->device) {
301 device_set_desc(dev, ident->name);
309 * Load the firmare image from disk to the allocated dma buffer.
310 * we also maintain the reference to the firmware pointer as there
311 * is times where we may need to reload the firmware but we are not
312 * in a context that can access the filesystem (ie taskq cause by restart)
314 * @return 0 on success, an errno on failure
317 wpi_load_firmware(struct wpi_softc *sc)
319 const struct firmware *fp;
320 struct wpi_dma_info *dma = &sc->fw_dma;
321 const struct wpi_firmware_hdr *hdr;
322 const uint8_t *itext, *idata, *rtext, *rdata, *btext;
323 uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz;
326 DPRINTFN(WPI_DEBUG_FIRMWARE,
327 ("Attempting Loading Firmware from wpi_fw module\n"));
331 if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) {
332 device_printf(sc->sc_dev,
333 "could not load firmware image 'wpifw'\n");
343 /* Validate the firmware is minimum a particular version */
344 if (fp->version < WPI_FW_MINVERSION) {
345 device_printf(sc->sc_dev,
346 "firmware version is too old. Need %d, got %d\n",
353 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
354 device_printf(sc->sc_dev,
355 "firmware file too short: %zu bytes\n", fp->datasize);
360 hdr = (const struct wpi_firmware_hdr *)fp->data;
362 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
363 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
365 rtextsz = le32toh(hdr->rtextsz);
366 rdatasz = le32toh(hdr->rdatasz);
367 itextsz = le32toh(hdr->itextsz);
368 idatasz = le32toh(hdr->idatasz);
369 btextsz = le32toh(hdr->btextsz);
371 /* check that all firmware segments are present */
372 if (fp->datasize < sizeof (struct wpi_firmware_hdr) +
373 rtextsz + rdatasz + itextsz + idatasz + btextsz) {
374 device_printf(sc->sc_dev,
375 "firmware file too short: %zu bytes\n", fp->datasize);
376 error = ENXIO; /* XXX appropriate error code? */
380 /* get pointers to firmware segments */
381 rtext = (const uint8_t *)(hdr + 1);
382 rdata = rtext + rtextsz;
383 itext = rdata + rdatasz;
384 idata = itext + itextsz;
385 btext = idata + idatasz;
387 DPRINTFN(WPI_DEBUG_FIRMWARE,
388 ("Firmware Version: Major %d, Minor %d, Driver %d, \n"
389 "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n",
390 (le32toh(hdr->version) & 0xff000000) >> 24,
391 (le32toh(hdr->version) & 0x00ff0000) >> 16,
392 (le32toh(hdr->version) & 0x0000ffff),
394 itextsz, idatasz, btextsz));
396 DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext));
397 DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata));
398 DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext));
399 DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata));
400 DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext));
403 if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ ||
404 rdatasz > WPI_FW_MAIN_DATA_MAXSZ ||
405 itextsz > WPI_FW_INIT_TEXT_MAXSZ ||
406 idatasz > WPI_FW_INIT_DATA_MAXSZ ||
407 btextsz > WPI_FW_BOOT_TEXT_MAXSZ ||
408 (btextsz & 3) != 0) {
409 device_printf(sc->sc_dev, "firmware invalid\n");
414 /* copy initialization images into pre-allocated DMA-safe memory */
415 memcpy(dma->vaddr, idata, idatasz);
416 memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz);
418 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
420 /* tell adapter where to find initialization images */
422 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
423 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz);
424 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
425 dma->paddr + WPI_FW_INIT_DATA_MAXSZ);
426 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz);
429 /* load firmware boot code */
430 if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) {
431 device_printf(sc->sc_dev, "Failed to load microcode\n");
435 /* now press "execute" */
436 WPI_WRITE(sc, WPI_RESET, 0);
438 /* wait at most one second for the first alive notification */
439 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
440 device_printf(sc->sc_dev,
441 "timeout waiting for adapter to initialize\n");
445 /* copy runtime images into pre-allocated DMA-sage memory */
446 memcpy(dma->vaddr, rdata, rdatasz);
447 memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz);
448 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
450 /* tell adapter where to find runtime images */
452 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
453 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz);
454 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
455 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ);
456 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz);
459 /* wait at most one second for the first alive notification */
460 if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) {
461 device_printf(sc->sc_dev,
462 "timeout waiting for adapter to initialize2\n");
466 DPRINTFN(WPI_DEBUG_FIRMWARE,
467 ("Firmware loaded to driver successfully\n"));
470 wpi_unload_firmware(sc);
475 * Free the referenced firmware image
478 wpi_unload_firmware(struct wpi_softc *sc)
483 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
490 wpi_attach(device_t dev)
492 struct wpi_softc *sc = device_get_softc(dev);
494 struct ieee80211com *ic;
495 int ac, error, supportsa = 1;
497 const struct wpi_ident *ident;
498 uint8_t macaddr[IEEE80211_ADDR_LEN];
502 if (bootverbose || WPI_DEBUG_SET)
503 device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION);
506 * Some card's only support 802.11b/g not a, check to see if
507 * this is one such card. A 0x0 in the subdevice table indicates
508 * the entire subdevice range is to be ignored.
510 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
511 if (ident->subdevice &&
512 pci_get_subdevice(dev) == ident->subdevice) {
518 /* Create the tasks that can be queued */
519 TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc);
520 TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc);
524 callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0);
525 callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0);
527 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
528 device_printf(dev, "chip is in D%d power mode "
529 "-- setting to D0\n", pci_get_powerstate(dev));
530 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
533 /* disable the retry timeout register */
534 pci_write_config(dev, 0x41, 0, 1);
536 /* enable bus-mastering */
537 pci_enable_busmaster(dev);
539 sc->mem_rid = PCIR_BAR(0);
540 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
542 if (sc->mem == NULL) {
543 device_printf(dev, "could not allocate memory resource\n");
548 sc->sc_st = rman_get_bustag(sc->mem);
549 sc->sc_sh = rman_get_bushandle(sc->mem);
552 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
553 RF_ACTIVE | RF_SHAREABLE);
554 if (sc->irq == NULL) {
555 device_printf(dev, "could not allocate interrupt resource\n");
561 * Allocate DMA memory for firmware transfers.
563 if ((error = wpi_alloc_fwmem(sc)) != 0) {
564 printf(": could not allocate firmware memory\n");
570 * Put adapter into a known state.
572 if ((error = wpi_reset(sc)) != 0) {
573 device_printf(dev, "could not reset adapter\n");
578 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
579 if (bootverbose || WPI_DEBUG_SET)
580 device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp);
584 /* Allocate shared page */
585 if ((error = wpi_alloc_shared(sc)) != 0) {
586 device_printf(dev, "could not allocate shared page\n");
590 /* tx data queues - 4 for QoS purposes */
591 for (ac = 0; ac < WME_NUM_AC; ac++) {
592 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac);
594 device_printf(dev, "could not allocate Tx ring %d\n",ac);
599 /* command queue to talk to the card's firmware */
600 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4);
602 device_printf(dev, "could not allocate command ring\n");
606 /* receive data queue */
607 error = wpi_alloc_rx_ring(sc, &sc->rxq);
609 device_printf(dev, "could not allocate Rx ring\n");
613 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
615 device_printf(dev, "can not if_alloc()\n");
622 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
623 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
625 /* set device capabilities */
627 IEEE80211_C_STA /* station mode supported */
628 | IEEE80211_C_MONITOR /* monitor mode supported */
629 | IEEE80211_C_TXPMGT /* tx power management */
630 | IEEE80211_C_SHSLOT /* short slot time supported */
631 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
632 | IEEE80211_C_WPA /* 802.11i */
633 /* XXX looks like WME is partly supported? */
635 | IEEE80211_C_IBSS /* IBSS mode support */
636 | IEEE80211_C_BGSCAN /* capable of bg scanning */
637 | IEEE80211_C_WME /* 802.11e */
638 | IEEE80211_C_HOSTAP /* Host access point mode */
643 * Read in the eeprom and also setup the channels for
644 * net80211. We don't set the rates as net80211 does this for us
646 wpi_read_eeprom(sc, macaddr);
648 if (bootverbose || WPI_DEBUG_SET) {
649 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain);
650 device_printf(sc->sc_dev, "Hardware Type: %c\n",
651 sc->type > 1 ? 'B': '?');
652 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
653 ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?');
654 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
655 supportsa ? "does" : "does not");
657 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check
658 what sc->rev really represents - benjsc 20070615 */
661 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
663 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
664 ifp->if_init = wpi_init;
665 ifp->if_ioctl = wpi_ioctl;
666 ifp->if_start = wpi_start;
667 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
668 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
669 IFQ_SET_READY(&ifp->if_snd);
671 ieee80211_ifattach(ic, macaddr);
672 /* override default methods */
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;
722 ieee80211_draintask(ic, &sc->sc_restarttask);
723 ieee80211_draintask(ic, &sc->sc_radiotask);
725 callout_drain(&sc->watchdog_to);
726 callout_drain(&sc->calib_to);
727 ieee80211_ifdetach(ic);
731 if (sc->txq[0].data_dmat) {
732 for (ac = 0; ac < WME_NUM_AC; ac++)
733 wpi_free_tx_ring(sc, &sc->txq[ac]);
735 wpi_free_tx_ring(sc, &sc->cmdq);
736 wpi_free_rx_ring(sc, &sc->rxq);
740 if (sc->fw_fp != NULL) {
741 wpi_unload_firmware(sc);
748 if (sc->irq != NULL) {
749 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
750 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
754 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
759 WPI_LOCK_DESTROY(sc);
764 static struct ieee80211vap *
765 wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
766 enum ieee80211_opmode opmode, int flags,
767 const uint8_t bssid[IEEE80211_ADDR_LEN],
768 const uint8_t mac[IEEE80211_ADDR_LEN])
771 struct ieee80211vap *vap;
773 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
775 wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap),
776 M_80211_VAP, M_NOWAIT | M_ZERO);
780 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
781 /* override with driver methods */
782 wvp->newstate = vap->iv_newstate;
783 vap->iv_newstate = wpi_newstate;
785 ieee80211_ratectl_init(vap);
787 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
788 ic->ic_opmode = opmode;
793 wpi_vap_delete(struct ieee80211vap *vap)
795 struct wpi_vap *wvp = WPI_VAP(vap);
797 ieee80211_ratectl_deinit(vap);
798 ieee80211_vap_detach(vap);
799 free(wvp, M_80211_VAP);
803 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
808 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
810 *(bus_addr_t *)arg = segs[0].ds_addr;
814 * Allocates a contiguous block of dma memory of the requested size and
815 * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217,
816 * allocations greater than 4096 may fail. Hence if the requested alignment is
817 * greater we allocate 'alignment' size extra memory and shift the vaddr and
818 * paddr after the dma load. This bypasses the problem at the cost of a little
822 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
823 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
829 DPRINTFN(WPI_DEBUG_DMA,
830 ("Size: %zd - alignment %zd\n", size, alignment));
835 if (alignment > 4096) {
837 reqsize = size + alignment;
842 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), align,
843 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
846 NULL, NULL, &dma->tag);
848 device_printf(sc->sc_dev,
849 "could not create shared page DMA tag\n");
852 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start,
853 flags | BUS_DMA_ZERO, &dma->map);
855 device_printf(sc->sc_dev,
856 "could not allocate shared page DMA memory\n");
860 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start,
861 reqsize, wpi_dma_map_addr, &dma->paddr_start, flags);
863 /* Save the original pointers so we can free all the memory */
864 dma->paddr = dma->paddr_start;
865 dma->vaddr = dma->vaddr_start;
868 * Check the alignment and increment by 4096 until we get the
869 * requested alignment. Fail if can't obtain the alignment
872 if ((dma->paddr & (alignment -1 )) != 0) {
875 for (i = 0; i < alignment / 4096; i++) {
876 if ((dma->paddr & (alignment - 1 )) == 0)
881 if (i == alignment / 4096) {
882 device_printf(sc->sc_dev,
883 "alignment requirement was not satisfied\n");
889 device_printf(sc->sc_dev,
890 "could not load shared page DMA map\n");
900 wpi_dma_contig_free(dma);
905 wpi_dma_contig_free(struct wpi_dma_info *dma)
908 if (dma->map != NULL) {
909 if (dma->paddr_start != 0) {
910 bus_dmamap_sync(dma->tag, dma->map,
911 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
912 bus_dmamap_unload(dma->tag, dma->map);
914 bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map);
916 bus_dma_tag_destroy(dma->tag);
921 * Allocate a shared page between host and NIC.
924 wpi_alloc_shared(struct wpi_softc *sc)
928 error = wpi_dma_contig_alloc(sc, &sc->shared_dma,
929 (void **)&sc->shared, sizeof (struct wpi_shared),
934 device_printf(sc->sc_dev,
935 "could not allocate shared area DMA memory\n");
942 wpi_free_shared(struct wpi_softc *sc)
944 wpi_dma_contig_free(&sc->shared_dma);
948 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
955 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
956 (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t),
957 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
960 device_printf(sc->sc_dev,
961 "%s: could not allocate rx ring DMA memory, error %d\n",
966 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
967 BUS_SPACE_MAXADDR_32BIT,
968 BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1,
969 MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat);
971 device_printf(sc->sc_dev,
972 "%s: bus_dma_tag_create_failed, error %d\n",
980 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
981 struct wpi_rx_data *data = &ring->data[i];
985 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
987 device_printf(sc->sc_dev,
988 "%s: bus_dmamap_create failed, error %d\n",
992 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
994 device_printf(sc->sc_dev,
995 "%s: could not allocate rx mbuf\n", __func__);
1000 error = bus_dmamap_load(ring->data_dmat, data->map,
1001 mtod(m, caddr_t), MJUMPAGESIZE,
1002 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1003 if (error != 0 && error != EFBIG) {
1004 device_printf(sc->sc_dev,
1005 "%s: bus_dmamap_load failed, error %d\n",
1008 error = ENOMEM; /* XXX unique code */
1011 bus_dmamap_sync(ring->data_dmat, data->map,
1012 BUS_DMASYNC_PREWRITE);
1015 ring->desc[i] = htole32(paddr);
1017 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1018 BUS_DMASYNC_PREWRITE);
1021 wpi_free_rx_ring(sc, ring);
1026 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1032 WPI_WRITE(sc, WPI_RX_CONFIG, 0);
1034 for (ntries = 0; ntries < 100; ntries++) {
1035 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
1043 if (ntries == 100 && wpi_debug > 0)
1044 device_printf(sc->sc_dev, "timeout resetting Rx ring\n");
1051 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1055 wpi_dma_contig_free(&ring->desc_dma);
1057 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1058 struct wpi_rx_data *data = &ring->data[i];
1060 if (data->m != NULL) {
1061 bus_dmamap_sync(ring->data_dmat, data->map,
1062 BUS_DMASYNC_POSTREAD);
1063 bus_dmamap_unload(ring->data_dmat, data->map);
1066 if (data->map != NULL)
1067 bus_dmamap_destroy(ring->data_dmat, data->map);
1072 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count,
1075 struct wpi_tx_data *data;
1079 ring->count = count;
1084 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1085 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc),
1086 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1089 device_printf(sc->sc_dev, "could not allocate tx dma memory\n");
1093 /* update shared page with ring's base address */
1094 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1096 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1097 count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN,
1101 device_printf(sc->sc_dev,
1102 "could not allocate tx command DMA memory\n");
1106 ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF,
1108 if (ring->data == NULL) {
1109 device_printf(sc->sc_dev,
1110 "could not allocate tx data slots\n");
1114 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
1115 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1116 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL,
1119 device_printf(sc->sc_dev, "could not create data DMA tag\n");
1123 for (i = 0; i < count; i++) {
1124 data = &ring->data[i];
1126 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1128 device_printf(sc->sc_dev,
1129 "could not create tx buf DMA map\n");
1132 bus_dmamap_sync(ring->data_dmat, data->map,
1133 BUS_DMASYNC_PREWRITE);
1139 wpi_free_tx_ring(sc, ring);
1144 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1146 struct wpi_tx_data *data;
1151 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
1152 for (ntries = 0; ntries < 100; ntries++) {
1153 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
1158 if (ntries == 100 && wpi_debug > 0)
1159 device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n",
1164 for (i = 0; i < ring->count; i++) {
1165 data = &ring->data[i];
1167 if (data->m != NULL) {
1168 bus_dmamap_unload(ring->data_dmat, data->map);
1179 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1181 struct wpi_tx_data *data;
1184 wpi_dma_contig_free(&ring->desc_dma);
1185 wpi_dma_contig_free(&ring->cmd_dma);
1187 if (ring->data != NULL) {
1188 for (i = 0; i < ring->count; i++) {
1189 data = &ring->data[i];
1191 if (data->m != NULL) {
1192 bus_dmamap_sync(ring->data_dmat, data->map,
1193 BUS_DMASYNC_POSTWRITE);
1194 bus_dmamap_unload(ring->data_dmat, data->map);
1199 free(ring->data, M_DEVBUF);
1202 if (ring->data_dmat != NULL)
1203 bus_dma_tag_destroy(ring->data_dmat);
1207 wpi_shutdown(device_t dev)
1209 struct wpi_softc *sc = device_get_softc(dev);
1212 wpi_stop_locked(sc);
1213 wpi_unload_firmware(sc);
1220 wpi_suspend(device_t dev)
1222 struct wpi_softc *sc = device_get_softc(dev);
1223 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1225 ieee80211_suspend_all(ic);
1230 wpi_resume(device_t dev)
1232 struct wpi_softc *sc = device_get_softc(dev);
1233 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1235 pci_write_config(dev, 0x41, 0, 1);
1237 ieee80211_resume_all(ic);
1242 * Called by net80211 when ever there is a change to 80211 state machine
1245 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1247 struct wpi_vap *wvp = WPI_VAP(vap);
1248 struct ieee80211com *ic = vap->iv_ic;
1249 struct ifnet *ifp = ic->ic_ifp;
1250 struct wpi_softc *sc = ifp->if_softc;
1253 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
1254 ieee80211_state_name[vap->iv_state],
1255 ieee80211_state_name[nstate], sc->flags));
1257 IEEE80211_UNLOCK(ic);
1259 if (nstate == IEEE80211_S_SCAN && vap->iv_state != IEEE80211_S_INIT) {
1261 * On !INIT -> SCAN transitions, we need to clear any possible
1262 * knowledge about associations.
1264 error = wpi_config(sc);
1266 device_printf(sc->sc_dev,
1267 "%s: device config failed, error %d\n",
1271 if (nstate == IEEE80211_S_AUTH ||
1272 (nstate == IEEE80211_S_ASSOC && vap->iv_state == IEEE80211_S_RUN)) {
1274 * The node must be registered in the firmware before auth.
1275 * Also the associd must be cleared on RUN -> ASSOC
1278 error = wpi_auth(sc, vap);
1280 device_printf(sc->sc_dev,
1281 "%s: could not move to auth state, error %d\n",
1285 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1286 error = wpi_run(sc, vap);
1288 device_printf(sc->sc_dev,
1289 "%s: could not move to run state, error %d\n",
1293 if (nstate == IEEE80211_S_RUN) {
1294 /* RUN -> RUN transition; just restart the timers */
1295 wpi_calib_timeout(sc);
1296 /* XXX split out rate control timer */
1300 return wvp->newstate(vap, nstate, arg);
1304 * Grab exclusive access to NIC memory.
1307 wpi_mem_lock(struct wpi_softc *sc)
1312 tmp = WPI_READ(sc, WPI_GPIO_CTL);
1313 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
1315 /* spin until we actually get the lock */
1316 for (ntries = 0; ntries < 100; ntries++) {
1317 if ((WPI_READ(sc, WPI_GPIO_CTL) &
1318 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
1323 device_printf(sc->sc_dev, "could not lock memory\n");
1327 * Release lock on NIC memory.
1330 wpi_mem_unlock(struct wpi_softc *sc)
1332 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
1333 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
1337 wpi_mem_read(struct wpi_softc *sc, uint16_t addr)
1339 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
1340 return WPI_READ(sc, WPI_READ_MEM_DATA);
1344 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data)
1346 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
1347 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
1351 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr,
1352 const uint32_t *data, int wlen)
1354 for (; wlen > 0; wlen--, data++, addr+=4)
1355 wpi_mem_write(sc, addr, *data);
1359 * Read data from the EEPROM. We access EEPROM through the MAC instead of
1360 * using the traditional bit-bang method. Data is read up until len bytes have
1364 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len)
1368 uint8_t *out = data;
1372 for (; len > 0; len -= 2, addr++) {
1373 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
1375 for (ntries = 0; ntries < 10; ntries++) {
1376 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
1382 device_printf(sc->sc_dev, "could not read EEPROM\n");
1397 * The firmware text and data segments are transferred to the NIC using DMA.
1398 * The driver just copies the firmware into DMA-safe memory and tells the NIC
1399 * where to find it. Once the NIC has copied the firmware into its internal
1400 * memory, we can free our local copy in the driver.
1403 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size)
1407 DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size));
1409 size /= sizeof(uint32_t);
1413 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE,
1414 (const uint32_t *)fw, size);
1416 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
1417 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
1418 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
1421 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
1423 /* wait while the adapter is busy copying the firmware */
1424 for (error = 0, ntries = 0; ntries < 1000; ntries++) {
1425 uint32_t status = WPI_READ(sc, WPI_TX_STATUS);
1426 DPRINTFN(WPI_DEBUG_HW,
1427 ("firmware status=0x%x, val=0x%x, result=0x%x\n", status,
1428 WPI_TX_IDLE(6), status & WPI_TX_IDLE(6)));
1429 if (status & WPI_TX_IDLE(6)) {
1430 DPRINTFN(WPI_DEBUG_HW,
1431 ("Status Match! - ntries = %d\n", ntries));
1436 if (ntries == 1000) {
1437 device_printf(sc->sc_dev, "timeout transferring firmware\n");
1441 /* start the microcode executing */
1442 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE);
1450 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1451 struct wpi_rx_data *data)
1453 struct ifnet *ifp = sc->sc_ifp;
1454 struct ieee80211com *ic = ifp->if_l2com;
1455 struct wpi_rx_ring *ring = &sc->rxq;
1456 struct wpi_rx_stat *stat;
1457 struct wpi_rx_head *head;
1458 struct wpi_rx_tail *tail;
1459 struct ieee80211_node *ni;
1460 struct mbuf *m, *mnew;
1464 stat = (struct wpi_rx_stat *)(desc + 1);
1466 if (stat->len > WPI_STAT_MAXLEN) {
1467 device_printf(sc->sc_dev, "invalid rx statistic header\n");
1472 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD);
1473 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1474 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len));
1476 DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d "
1477 "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len),
1478 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan,
1479 (uintmax_t)le64toh(tail->tstamp)));
1481 /* discard Rx frames with bad CRC early */
1482 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1483 DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__,
1484 le32toh(tail->flags)));
1488 if (le16toh(head->len) < sizeof (struct ieee80211_frame)) {
1489 DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__,
1490 le16toh(head->len)));
1495 /* XXX don't need mbuf, just dma buffer */
1496 mnew = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
1498 DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n",
1503 bus_dmamap_unload(ring->data_dmat, data->map);
1505 error = bus_dmamap_load(ring->data_dmat, data->map,
1506 mtod(mnew, caddr_t), MJUMPAGESIZE,
1507 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1508 if (error != 0 && error != EFBIG) {
1509 device_printf(sc->sc_dev,
1510 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1515 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1517 /* finalize mbuf and swap in new one */
1519 m->m_pkthdr.rcvif = ifp;
1520 m->m_data = (caddr_t)(head + 1);
1521 m->m_pkthdr.len = m->m_len = le16toh(head->len);
1524 /* update Rx descriptor */
1525 ring->desc[ring->cur] = htole32(paddr);
1527 if (ieee80211_radiotap_active(ic)) {
1528 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1532 htole16(ic->ic_channels[head->chan].ic_freq);
1533 tap->wr_chan_flags =
1534 htole16(ic->ic_channels[head->chan].ic_flags);
1535 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
1536 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise);
1537 tap->wr_tsft = tail->tstamp;
1538 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1539 switch (head->rate) {
1541 case 10: tap->wr_rate = 2; break;
1542 case 20: tap->wr_rate = 4; break;
1543 case 55: tap->wr_rate = 11; break;
1544 case 110: tap->wr_rate = 22; break;
1546 case 0xd: tap->wr_rate = 12; break;
1547 case 0xf: tap->wr_rate = 18; break;
1548 case 0x5: tap->wr_rate = 24; break;
1549 case 0x7: tap->wr_rate = 36; break;
1550 case 0x9: tap->wr_rate = 48; break;
1551 case 0xb: tap->wr_rate = 72; break;
1552 case 0x1: tap->wr_rate = 96; break;
1553 case 0x3: tap->wr_rate = 108; break;
1554 /* unknown rate: should not happen */
1555 default: tap->wr_rate = 0;
1557 if (le16toh(head->flags) & 0x4)
1558 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1563 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1565 (void) ieee80211_input(ni, m, stat->rssi, 0);
1566 ieee80211_free_node(ni);
1568 (void) ieee80211_input_all(ic, m, stat->rssi, 0);
1574 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1576 struct ifnet *ifp = sc->sc_ifp;
1577 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1578 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1579 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1580 struct ieee80211_node *ni = txdata->ni;
1581 struct ieee80211vap *vap = ni->ni_vap;
1584 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1585 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1586 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1587 le32toh(stat->status)));
1590 * Update rate control statistics for the node.
1591 * XXX we should not count mgmt frames since they're always sent at
1592 * the lowest available bit-rate.
1593 * XXX frames w/o ACK shouldn't be used either
1595 if (stat->ntries > 0) {
1596 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1599 ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS,
1602 /* XXX oerrors should only count errors !maxtries */
1603 if ((le32toh(stat->status) & 0xff) != 1)
1608 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);
1609 bus_dmamap_unload(ring->data_dmat, txdata->map);
1610 /* XXX handle M_TXCB? */
1613 ieee80211_free_node(txdata->ni);
1618 sc->sc_tx_timer = 0;
1619 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1620 wpi_start_locked(ifp);
1624 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1626 struct wpi_tx_ring *ring = &sc->cmdq;
1627 struct wpi_tx_data *data;
1629 DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x "
1630 "type=%s len=%d\n", desc->qid, desc->idx,
1631 desc->flags, wpi_cmd_str(desc->type),
1632 le32toh(desc->len)));
1634 if ((desc->qid & 7) != 4)
1635 return; /* not a command ack */
1637 data = &ring->data[desc->idx];
1639 /* if the command was mapped in a mbuf, free it */
1640 if (data->m != NULL) {
1641 bus_dmamap_unload(ring->data_dmat, data->map);
1646 sc->flags &= ~WPI_FLAG_BUSY;
1647 wakeup(&ring->cmd[desc->idx]);
1651 wpi_notif_intr(struct wpi_softc *sc)
1653 struct ifnet *ifp = sc->sc_ifp;
1654 struct ieee80211com *ic = ifp->if_l2com;
1655 struct wpi_rx_desc *desc;
1656 struct wpi_rx_data *data;
1659 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map,
1660 BUS_DMASYNC_POSTREAD);
1662 hw = le32toh(sc->shared->next);
1663 while (sc->rxq.cur != hw) {
1664 data = &sc->rxq.data[sc->rxq.cur];
1666 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1667 BUS_DMASYNC_POSTREAD);
1668 desc = (void *)data->m->m_ext.ext_buf;
1670 DPRINTFN(WPI_DEBUG_NOTIFY,
1671 ("notify qid=%x idx=%d flags=%x type=%d len=%d\n",
1676 le32toh(desc->len)));
1678 if (!(desc->qid & 0x80)) /* reply to a command */
1679 wpi_cmd_intr(sc, desc);
1681 switch (desc->type) {
1683 /* a 802.11 frame was received */
1684 wpi_rx_intr(sc, desc, data);
1688 /* a 802.11 frame has been transmitted */
1689 wpi_tx_intr(sc, desc);
1694 struct wpi_ucode_info *uc =
1695 (struct wpi_ucode_info *)(desc + 1);
1697 /* the microcontroller is ready */
1698 DPRINTF(("microcode alive notification version %x "
1699 "alive %x\n", le32toh(uc->version),
1700 le32toh(uc->valid)));
1702 if (le32toh(uc->valid) != 1) {
1703 device_printf(sc->sc_dev,
1704 "microcontroller initialization failed\n");
1705 wpi_stop_locked(sc);
1709 case WPI_STATE_CHANGED:
1711 uint32_t *status = (uint32_t *)(desc + 1);
1713 /* enabled/disabled notification */
1714 DPRINTF(("state changed to %x\n", le32toh(*status)));
1716 if (le32toh(*status) & 1) {
1717 device_printf(sc->sc_dev,
1718 "Radio transmitter is switched off\n");
1719 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
1720 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1721 /* Disable firmware commands */
1722 WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD);
1726 case WPI_START_SCAN:
1729 struct wpi_start_scan *scan =
1730 (struct wpi_start_scan *)(desc + 1);
1733 DPRINTFN(WPI_DEBUG_SCANNING,
1734 ("scanning channel %d status %x\n",
1735 scan->chan, le32toh(scan->status)));
1741 struct wpi_stop_scan *scan =
1742 (struct wpi_stop_scan *)(desc + 1);
1744 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1746 DPRINTFN(WPI_DEBUG_SCANNING,
1747 ("scan finished nchan=%d status=%d chan=%d\n",
1748 scan->nchan, scan->status, scan->chan));
1750 sc->sc_scan_timer = 0;
1751 ieee80211_scan_next(vap);
1754 case WPI_MISSED_BEACON:
1756 struct wpi_missed_beacon *beacon =
1757 (struct wpi_missed_beacon *)(desc + 1);
1758 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1760 if (le32toh(beacon->consecutive) >=
1761 vap->iv_bmissthreshold) {
1762 DPRINTF(("Beacon miss: %u >= %u\n",
1763 le32toh(beacon->consecutive),
1764 vap->iv_bmissthreshold));
1765 ieee80211_beacon_miss(ic);
1771 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
1774 /* tell the firmware what we have processed */
1775 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
1776 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7);
1782 struct wpi_softc *sc = arg;
1787 r = WPI_READ(sc, WPI_INTR);
1788 if (r == 0 || r == 0xffffffff) {
1793 /* disable interrupts */
1794 WPI_WRITE(sc, WPI_MASK, 0);
1795 /* ack interrupts */
1796 WPI_WRITE(sc, WPI_INTR, r);
1798 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
1799 struct ifnet *ifp = sc->sc_ifp;
1800 struct ieee80211com *ic = ifp->if_l2com;
1801 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1803 device_printf(sc->sc_dev, "fatal firmware error\n");
1804 DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" :
1805 "(Hardware Error)"));
1807 ieee80211_cancel_scan(vap);
1808 ieee80211_runtask(ic, &sc->sc_restarttask);
1809 sc->flags &= ~WPI_FLAG_BUSY;
1814 if (r & WPI_RX_INTR)
1817 if (r & WPI_ALIVE_INTR) /* firmware initialized */
1820 /* re-enable interrupts */
1821 if (sc->sc_ifp->if_flags & IFF_UP)
1822 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
1828 wpi_plcp_signal(int rate)
1831 /* CCK rates (returned values are device-dependent) */
1835 case 22: return 110;
1837 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1838 /* R1-R4 (ral/ural is R4-R1) */
1839 case 12: return 0xd;
1840 case 18: return 0xf;
1841 case 24: return 0x5;
1842 case 36: return 0x7;
1843 case 48: return 0x9;
1844 case 72: return 0xb;
1845 case 96: return 0x1;
1846 case 108: return 0x3;
1848 /* unsupported rates (should not get there) */
1853 /* quickly determine if a given rate is CCK or OFDM */
1854 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1857 * Construct the data packet for a transmit buffer and acutally put
1858 * the buffer onto the transmit ring, kicking the card to process the
1862 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1865 struct ieee80211vap *vap = ni->ni_vap;
1866 struct ifnet *ifp = sc->sc_ifp;
1867 struct ieee80211com *ic = ifp->if_l2com;
1868 const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
1869 struct wpi_tx_ring *ring = &sc->txq[ac];
1870 struct wpi_tx_desc *desc;
1871 struct wpi_tx_data *data;
1872 struct wpi_tx_cmd *cmd;
1873 struct wpi_cmd_data *tx;
1874 struct ieee80211_frame *wh;
1875 const struct ieee80211_txparam *tp;
1876 struct ieee80211_key *k;
1878 int i, error, nsegs, rate, hdrlen, ismcast;
1879 bus_dma_segment_t segs[WPI_MAX_SCATTER];
1881 desc = &ring->desc[ring->cur];
1882 data = &ring->data[ring->cur];
1884 wh = mtod(m0, struct ieee80211_frame *);
1886 hdrlen = ieee80211_hdrsize(wh);
1887 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1889 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1890 k = ieee80211_crypto_encap(ni, m0);
1895 /* packet header may have moved, reset our local pointer */
1896 wh = mtod(m0, struct ieee80211_frame *);
1899 cmd = &ring->cmd[ring->cur];
1900 cmd->code = WPI_CMD_TX_DATA;
1902 cmd->qid = ring->qid;
1903 cmd->idx = ring->cur;
1905 tx = (struct wpi_cmd_data *)cmd->data;
1906 tx->flags = htole32(WPI_TX_AUTO_SEQ);
1907 tx->timeout = htole16(0);
1908 tx->ofdm_mask = 0xff;
1909 tx->cck_mask = 0x0f;
1910 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
1911 tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS;
1912 tx->len = htole16(m0->m_pkthdr.len);
1915 if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 ||
1916 !cap->cap_wmeParams[ac].wmep_noackPolicy)
1917 tx->flags |= htole32(WPI_TX_NEED_ACK);
1918 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
1919 tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP);
1924 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1925 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
1926 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1927 /* tell h/w to set timestamp in probe responses */
1928 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1929 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP);
1930 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
1931 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
1932 tx->timeout = htole16(3);
1934 tx->timeout = htole16(2);
1935 rate = tp->mgmtrate;
1936 } else if (ismcast) {
1937 rate = tp->mcastrate;
1938 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1939 rate = tp->ucastrate;
1941 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1942 rate = ni->ni_txrate;
1944 tx->rate = wpi_plcp_signal(rate);
1946 /* be very persistant at sending frames out */
1948 tx->data_ntries = tp->maxretry;
1950 tx->data_ntries = 15; /* XXX way too high */
1953 if (ieee80211_radiotap_active_vap(vap)) {
1954 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
1956 tap->wt_rate = rate;
1957 tap->wt_hwqueue = ac;
1958 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
1959 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1961 ieee80211_radiotap_tx(vap, m0);
1964 /* save and trim IEEE802.11 header */
1965 m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh);
1968 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs,
1969 &nsegs, BUS_DMA_NOWAIT);
1970 if (error != 0 && error != EFBIG) {
1971 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1977 /* XXX use m_collapse */
1978 mnew = m_defrag(m0, M_DONTWAIT);
1980 device_printf(sc->sc_dev,
1981 "could not defragment mbuf\n");
1987 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map,
1988 m0, segs, &nsegs, BUS_DMA_NOWAIT);
1990 device_printf(sc->sc_dev,
1991 "could not map mbuf (error %d)\n", error);
2000 DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n",
2001 ring->qid, ring->cur, m0->m_pkthdr.len, nsegs));
2003 /* first scatter/gather segment is used by the tx data command */
2004 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
2006 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2007 ring->cur * sizeof (struct wpi_tx_cmd));
2008 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data));
2009 for (i = 1; i <= nsegs; i++) {
2010 desc->segs[i].addr = htole32(segs[i - 1].ds_addr);
2011 desc->segs[i].len = htole32(segs[i - 1].ds_len);
2014 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2015 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2016 BUS_DMASYNC_PREWRITE);
2021 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2022 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2028 * Process data waiting to be sent on the IFNET output queue
2031 wpi_start(struct ifnet *ifp)
2033 struct wpi_softc *sc = ifp->if_softc;
2036 wpi_start_locked(ifp);
2041 wpi_start_locked(struct ifnet *ifp)
2043 struct wpi_softc *sc = ifp->if_softc;
2044 struct ieee80211_node *ni;
2048 WPI_LOCK_ASSERT(sc);
2050 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2054 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2057 ac = M_WME_GETAC(m);
2058 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
2059 /* there is no place left in this ring */
2060 IFQ_DRV_PREPEND(&ifp->if_snd, m);
2061 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2064 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
2065 if (wpi_tx_data(sc, m, ni, ac) != 0) {
2066 ieee80211_free_node(ni);
2070 sc->sc_tx_timer = 5;
2075 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2076 const struct ieee80211_bpf_params *params)
2078 struct ieee80211com *ic = ni->ni_ic;
2079 struct ifnet *ifp = ic->ic_ifp;
2080 struct wpi_softc *sc = ifp->if_softc;
2082 /* prevent management frames from being sent if we're not ready */
2083 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2085 ieee80211_free_node(ni);
2090 /* management frames go into ring 0 */
2091 if (sc->txq[0].queued > sc->txq[0].count - 8) {
2092 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2095 ieee80211_free_node(ni);
2096 return ENOBUFS; /* XXX */
2100 if (wpi_tx_data(sc, m, ni, 0) != 0)
2102 sc->sc_tx_timer = 5;
2103 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
2110 ieee80211_free_node(ni);
2111 return EIO; /* XXX */
2115 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2117 struct wpi_softc *sc = ifp->if_softc;
2118 struct ieee80211com *ic = ifp->if_l2com;
2119 struct ifreq *ifr = (struct ifreq *) data;
2120 int error = 0, startall = 0;
2125 if ((ifp->if_flags & IFF_UP)) {
2126 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2127 wpi_init_locked(sc, 0);
2130 } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) ||
2131 (sc->flags & WPI_FLAG_HW_RADIO_OFF))
2132 wpi_stop_locked(sc);
2135 ieee80211_start_all(ic);
2138 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2141 error = ether_ioctl(ifp, cmd, data);
2151 * Extract various information from EEPROM.
2154 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2158 /* read the hardware capabilities, revision and SKU type */
2159 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1);
2160 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2);
2161 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1);
2163 /* read the regulatory domain */
2164 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4);
2166 /* read in the hw MAC address */
2167 wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6);
2169 /* read the list of authorized channels */
2170 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
2171 wpi_read_eeprom_channels(sc,i);
2173 /* read the power level calibration info for each group */
2174 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
2175 wpi_read_eeprom_group(sc,i);
2179 * Send a command to the firmware.
2182 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async)
2184 struct wpi_tx_ring *ring = &sc->cmdq;
2185 struct wpi_tx_desc *desc;
2186 struct wpi_tx_cmd *cmd;
2190 WPI_LOCK_ASSERT(sc);
2194 DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size,
2197 if (sc->flags & WPI_FLAG_BUSY) {
2198 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
2202 sc->flags|= WPI_FLAG_BUSY;
2204 KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes",
2207 desc = &ring->desc[ring->cur];
2208 cmd = &ring->cmd[ring->cur];
2212 cmd->qid = ring->qid;
2213 cmd->idx = ring->cur;
2214 memcpy(cmd->data, buf, size);
2216 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
2217 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2218 ring->cur * sizeof (struct wpi_tx_cmd));
2219 desc->segs[0].len = htole32(4 + size);
2222 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2223 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2226 sc->flags &= ~ WPI_FLAG_BUSY;
2230 return msleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz);
2234 wpi_wme_update(struct ieee80211com *ic)
2236 #define WPI_EXP2(v) htole16((1 << (v)) - 1)
2237 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
2238 struct wpi_softc *sc = ic->ic_ifp->if_softc;
2239 const struct wmeParams *wmep;
2240 struct wpi_wme_setup wme;
2243 /* don't override default WME values if WME is not actually enabled */
2244 if (!(ic->ic_flags & IEEE80211_F_WME))
2248 for (ac = 0; ac < WME_NUM_AC; ac++) {
2249 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
2250 wme.ac[ac].aifsn = wmep->wmep_aifsn;
2251 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin);
2252 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax);
2253 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit);
2255 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
2256 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin,
2257 wme.ac[ac].cwmax, wme.ac[ac].txop));
2259 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1);
2265 * Configure h/w multi-rate retries.
2268 wpi_mrr_setup(struct wpi_softc *sc)
2270 struct ifnet *ifp = sc->sc_ifp;
2271 struct ieee80211com *ic = ifp->if_l2com;
2272 struct wpi_mrr_setup mrr;
2275 memset(&mrr, 0, sizeof (struct wpi_mrr_setup));
2277 /* CCK rates (not used with 802.11a) */
2278 for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
2279 mrr.rates[i].flags = 0;
2280 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2281 /* fallback to the immediate lower CCK rate (if any) */
2282 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
2283 /* try one time at this rate before falling back to "next" */
2284 mrr.rates[i].ntries = 1;
2287 /* OFDM rates (not used with 802.11b) */
2288 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
2289 mrr.rates[i].flags = 0;
2290 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2291 /* fallback to the immediate lower OFDM rate (if any) */
2292 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */
2293 mrr.rates[i].next = (i == WPI_OFDM6) ?
2294 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
2295 WPI_OFDM6 : WPI_CCK2) :
2297 /* try one time at this rate before falling back to "next" */
2298 mrr.rates[i].ntries = 1;
2301 /* setup MRR for control frames */
2302 mrr.which = WPI_MRR_CTL;
2303 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2305 device_printf(sc->sc_dev,
2306 "could not setup MRR for control frames\n");
2310 /* setup MRR for data frames */
2311 mrr.which = WPI_MRR_DATA;
2312 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2314 device_printf(sc->sc_dev,
2315 "could not setup MRR for data frames\n");
2323 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
2325 struct wpi_cmd_led led;
2328 led.unit = htole32(100000); /* on/off in unit of 100ms */
2332 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
2336 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni)
2338 struct wpi_cmd_tsf tsf;
2341 memset(&tsf, 0, sizeof tsf);
2342 memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8);
2343 tsf.bintval = htole16(ni->ni_intval);
2344 tsf.lintval = htole16(10);
2346 /* compute remaining time until next beacon */
2347 val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */
2348 mod = le64toh(tsf.tstamp) % val;
2349 tsf.binitval = htole32((uint32_t)(val - mod));
2351 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0)
2352 device_printf(sc->sc_dev, "could not enable TSF\n");
2357 * Build a beacon frame that the firmware will broadcast periodically in
2358 * IBSS or HostAP modes.
2361 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
2363 struct ifnet *ifp = sc->sc_ifp;
2364 struct ieee80211com *ic = ifp->if_l2com;
2365 struct wpi_tx_ring *ring = &sc->cmdq;
2366 struct wpi_tx_desc *desc;
2367 struct wpi_tx_data *data;
2368 struct wpi_tx_cmd *cmd;
2369 struct wpi_cmd_beacon *bcn;
2370 struct ieee80211_beacon_offsets bo;
2372 bus_addr_t physaddr;
2375 desc = &ring->desc[ring->cur];
2376 data = &ring->data[ring->cur];
2378 m0 = ieee80211_beacon_alloc(ic, ni, &bo);
2380 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2384 cmd = &ring->cmd[ring->cur];
2385 cmd->code = WPI_CMD_SET_BEACON;
2387 cmd->qid = ring->qid;
2388 cmd->idx = ring->cur;
2390 bcn = (struct wpi_cmd_beacon *)cmd->data;
2391 memset(bcn, 0, sizeof (struct wpi_cmd_beacon));
2392 bcn->id = WPI_ID_BROADCAST;
2393 bcn->ofdm_mask = 0xff;
2394 bcn->cck_mask = 0x0f;
2395 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE);
2396 bcn->len = htole16(m0->m_pkthdr.len);
2397 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2398 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2399 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
2401 /* save and trim IEEE802.11 header */
2402 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh);
2403 m_adj(m0, sizeof (struct ieee80211_frame));
2405 /* assume beacon frame is contiguous */
2406 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *),
2407 m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0);
2409 device_printf(sc->sc_dev, "could not map beacon\n");
2416 /* first scatter/gather segment is used by the beacon command */
2417 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
2418 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2419 ring->cur * sizeof (struct wpi_tx_cmd));
2420 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon));
2421 desc->segs[1].addr = htole32(physaddr);
2422 desc->segs[1].len = htole32(m0->m_pkthdr.len);
2425 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2426 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2433 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
2435 struct ieee80211com *ic = vap->iv_ic;
2436 struct ieee80211_node *ni = vap->iv_bss;
2437 struct wpi_node_info node;
2441 /* update adapter's configuration */
2442 sc->config.associd = 0;
2443 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2444 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2445 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2446 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2447 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2450 sc->config.flags &= ~htole32(WPI_CONFIG_AUTO |
2453 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
2454 sc->config.cck_mask = 0;
2455 sc->config.ofdm_mask = 0x15;
2456 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
2457 sc->config.cck_mask = 0x03;
2458 sc->config.ofdm_mask = 0;
2460 /* XXX assume 802.11b/g */
2461 sc->config.cck_mask = 0x0f;
2462 sc->config.ofdm_mask = 0x15;
2465 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan,
2466 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask));
2467 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2468 sizeof (struct wpi_config), 1);
2470 device_printf(sc->sc_dev, "could not configure\n");
2474 /* configuration has changed, set Tx power accordingly */
2475 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) {
2476 device_printf(sc->sc_dev, "could not set Tx power\n");
2480 /* add default node */
2481 memset(&node, 0, sizeof node);
2482 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid);
2483 node.id = WPI_ID_BSS;
2484 node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2485 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2486 node.action = htole32(WPI_ACTION_SET_RATE);
2487 node.antenna = WPI_ANTENNA_BOTH;
2488 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
2490 device_printf(sc->sc_dev, "could not add BSS node\n");
2496 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
2498 struct ieee80211com *ic = vap->iv_ic;
2499 struct ieee80211_node *ni = vap->iv_bss;
2502 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
2503 /* link LED blinks while monitoring */
2504 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
2508 wpi_enable_tsf(sc, ni);
2510 /* update adapter's configuration */
2511 sc->config.associd = htole16(ni->ni_associd & ~0xc000);
2512 /* short preamble/slot time are negotiated when associating */
2513 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE |
2515 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2516 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT);
2517 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2518 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE);
2519 sc->config.filter |= htole32(WPI_FILTER_BSS);
2521 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
2523 DPRINTF(("config chan %d flags %x\n", sc->config.chan,
2525 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct
2528 device_printf(sc->sc_dev, "could not update configuration\n");
2532 error = wpi_set_txpower(sc, ni->ni_chan, 1);
2534 device_printf(sc->sc_dev, "could set txpower\n");
2538 /* link LED always on while associated */
2539 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
2541 /* start automatic rate control timer */
2542 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
2548 * Send a scan request to the firmware. Since this command is huge, we map it
2549 * into a mbufcluster instead of using the pre-allocated set of commands. Note,
2550 * much of this code is similar to that in wpi_cmd but because we must manually
2551 * construct the probe & channels, we duplicate what's needed here. XXX In the
2552 * future, this function should be modified to use wpi_cmd to help cleanup the
2556 wpi_scan(struct wpi_softc *sc)
2558 struct ifnet *ifp = sc->sc_ifp;
2559 struct ieee80211com *ic = ifp->if_l2com;
2560 struct ieee80211_scan_state *ss = ic->ic_scan;
2561 struct wpi_tx_ring *ring = &sc->cmdq;
2562 struct wpi_tx_desc *desc;
2563 struct wpi_tx_data *data;
2564 struct wpi_tx_cmd *cmd;
2565 struct wpi_scan_hdr *hdr;
2566 struct wpi_scan_chan *chan;
2567 struct ieee80211_frame *wh;
2568 struct ieee80211_rateset *rs;
2569 struct ieee80211_channel *c;
2570 enum ieee80211_phymode mode;
2572 int nrates, pktlen, error, i, nssid;
2573 bus_addr_t physaddr;
2575 desc = &ring->desc[ring->cur];
2576 data = &ring->data[ring->cur];
2578 data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
2579 if (data->m == NULL) {
2580 device_printf(sc->sc_dev,
2581 "could not allocate mbuf for scan command\n");
2585 cmd = mtod(data->m, struct wpi_tx_cmd *);
2586 cmd->code = WPI_CMD_SCAN;
2588 cmd->qid = ring->qid;
2589 cmd->idx = ring->cur;
2591 hdr = (struct wpi_scan_hdr *)cmd->data;
2592 memset(hdr, 0, sizeof(struct wpi_scan_hdr));
2595 * Move to the next channel if no packets are received within 5 msecs
2596 * after sending the probe request (this helps to reduce the duration
2599 hdr->quiet = htole16(5);
2600 hdr->threshold = htole16(1);
2602 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
2603 /* send probe requests at 6Mbps */
2604 hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6];
2606 /* Enable crc checking */
2607 hdr->promotion = htole16(1);
2609 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO);
2610 /* send probe requests at 1Mbps */
2611 hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1];
2613 hdr->tx.id = WPI_ID_BROADCAST;
2614 hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE);
2615 hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ);
2617 memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids));
2618 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
2619 for (i = 0; i < nssid; i++) {
2620 hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID;
2621 hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32);
2622 memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid,
2623 hdr->scan_essids[i].esslen);
2625 if (wpi_debug & WPI_DEBUG_SCANNING) {
2626 printf("Scanning Essid: ");
2627 ieee80211_print_essid(hdr->scan_essids[i].essid,
2628 hdr->scan_essids[i].esslen);
2635 * Build a probe request frame. Most of the following code is a
2636 * copy & paste of what is done in net80211.
2638 wh = (struct ieee80211_frame *)&hdr->scan_essids[4];
2639 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2640 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2641 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
2642 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
2643 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
2644 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
2645 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
2646 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
2648 frm = (uint8_t *)(wh + 1);
2650 /* add essid IE, the hardware will fill this in for us */
2651 *frm++ = IEEE80211_ELEMID_SSID;
2654 mode = ieee80211_chan2mode(ic->ic_curchan);
2655 rs = &ic->ic_sup_rates[mode];
2657 /* add supported rates IE */
2658 *frm++ = IEEE80211_ELEMID_RATES;
2659 nrates = rs->rs_nrates;
2660 if (nrates > IEEE80211_RATE_SIZE)
2661 nrates = IEEE80211_RATE_SIZE;
2663 memcpy(frm, rs->rs_rates, nrates);
2666 /* add supported xrates IE */
2667 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
2668 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
2669 *frm++ = IEEE80211_ELEMID_XRATES;
2671 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
2675 /* setup length of probe request */
2676 hdr->tx.len = htole16(frm - (uint8_t *)wh);
2679 * Construct information about the channel that we
2680 * want to scan. The firmware expects this to be directly
2681 * after the scan probe request
2684 chan = (struct wpi_scan_chan *)frm;
2685 chan->chan = ieee80211_chan2ieee(ic, c);
2687 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2688 chan->flags |= WPI_CHAN_ACTIVE;
2690 chan->flags |= WPI_CHAN_DIRECT;
2692 chan->gain_dsp = 0x6e; /* Default level */
2693 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2694 chan->active = htole16(10);
2695 chan->passive = htole16(ss->ss_maxdwell);
2696 chan->gain_radio = 0x3b;
2698 chan->active = htole16(20);
2699 chan->passive = htole16(ss->ss_maxdwell);
2700 chan->gain_radio = 0x28;
2703 DPRINTFN(WPI_DEBUG_SCANNING,
2704 ("Scanning %u Passive: %d\n",
2706 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2711 frm += sizeof (struct wpi_scan_chan);
2713 // XXX All Channels....
2714 for (c = &ic->ic_channels[1];
2715 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) {
2716 if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags)
2719 chan->chan = ieee80211_chan2ieee(ic, c);
2721 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2722 chan->flags |= WPI_CHAN_ACTIVE;
2723 if (ic->ic_des_ssid[0].len != 0)
2724 chan->flags |= WPI_CHAN_DIRECT;
2726 chan->gain_dsp = 0x6e; /* Default level */
2727 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2728 chan->active = htole16(10);
2729 chan->passive = htole16(110);
2730 chan->gain_radio = 0x3b;
2732 chan->active = htole16(20);
2733 chan->passive = htole16(120);
2734 chan->gain_radio = 0x28;
2737 DPRINTFN(WPI_DEBUG_SCANNING,
2738 ("Scanning %u Passive: %d\n",
2740 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2745 frm += sizeof (struct wpi_scan_chan);
2749 hdr->len = htole16(frm - (uint8_t *)hdr);
2750 pktlen = frm - (uint8_t *)cmd;
2752 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen,
2753 wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT);
2755 device_printf(sc->sc_dev, "could not map scan command\n");
2761 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);
2762 desc->segs[0].addr = htole32(physaddr);
2763 desc->segs[0].len = htole32(pktlen);
2765 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2766 BUS_DMASYNC_PREWRITE);
2767 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2770 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2771 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2773 sc->sc_scan_timer = 5;
2774 return 0; /* will be notified async. of failure/success */
2778 * Configure the card to listen to a particular channel, this transisions the
2779 * card in to being able to receive frames from remote devices.
2782 wpi_config(struct wpi_softc *sc)
2784 struct ifnet *ifp = sc->sc_ifp;
2785 struct ieee80211com *ic = ifp->if_l2com;
2786 struct wpi_power power;
2787 struct wpi_bluetooth bluetooth;
2788 struct wpi_node_info node;
2791 /* set power mode */
2792 memset(&power, 0, sizeof power);
2793 power.flags = htole32(WPI_POWER_CAM|0x8);
2794 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2796 device_printf(sc->sc_dev, "could not set power mode\n");
2800 /* configure bluetooth coexistence */
2801 memset(&bluetooth, 0, sizeof bluetooth);
2802 bluetooth.flags = 3;
2803 bluetooth.lead = 0xaa;
2805 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth,
2808 device_printf(sc->sc_dev,
2809 "could not configure bluetooth coexistence\n");
2813 /* configure adapter */
2814 memset(&sc->config, 0, sizeof (struct wpi_config));
2815 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp));
2816 /*set default channel*/
2817 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan));
2818 sc->config.flags = htole32(WPI_CONFIG_TSF);
2819 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2820 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2823 sc->config.filter = 0;
2824 switch (ic->ic_opmode) {
2825 case IEEE80211_M_STA:
2826 case IEEE80211_M_WDS: /* No know setup, use STA for now */
2827 sc->config.mode = WPI_MODE_STA;
2828 sc->config.filter |= htole32(WPI_FILTER_MULTICAST);
2830 case IEEE80211_M_IBSS:
2831 case IEEE80211_M_AHDEMO:
2832 sc->config.mode = WPI_MODE_IBSS;
2833 sc->config.filter |= htole32(WPI_FILTER_BEACON |
2834 WPI_FILTER_MULTICAST);
2836 case IEEE80211_M_HOSTAP:
2837 sc->config.mode = WPI_MODE_HOSTAP;
2839 case IEEE80211_M_MONITOR:
2840 sc->config.mode = WPI_MODE_MONITOR;
2841 sc->config.filter |= htole32(WPI_FILTER_MULTICAST |
2842 WPI_FILTER_CTL | WPI_FILTER_PROMISC);
2845 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2848 sc->config.cck_mask = 0x0f; /* not yet negotiated */
2849 sc->config.ofdm_mask = 0xff; /* not yet negotiated */
2850 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2851 sizeof (struct wpi_config), 0);
2853 device_printf(sc->sc_dev, "configure command failed\n");
2857 /* configuration has changed, set Tx power accordingly */
2858 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) {
2859 device_printf(sc->sc_dev, "could not set Tx power\n");
2863 /* add broadcast node */
2864 memset(&node, 0, sizeof node);
2865 IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr);
2866 node.id = WPI_ID_BROADCAST;
2867 node.rate = wpi_plcp_signal(2);
2868 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0);
2870 device_printf(sc->sc_dev, "could not add broadcast node\n");
2874 /* Setup rate scalling */
2875 error = wpi_mrr_setup(sc);
2877 device_printf(sc->sc_dev, "could not setup MRR\n");
2885 wpi_stop_master(struct wpi_softc *sc)
2890 DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n"));
2892 tmp = WPI_READ(sc, WPI_RESET);
2893 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET);
2895 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2896 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
2897 return; /* already asleep */
2899 for (ntries = 0; ntries < 100; ntries++) {
2900 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
2904 if (ntries == 100) {
2905 device_printf(sc->sc_dev, "timeout waiting for master\n");
2910 wpi_power_up(struct wpi_softc *sc)
2916 tmp = wpi_mem_read(sc, WPI_MEM_POWER);
2917 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
2920 for (ntries = 0; ntries < 5000; ntries++) {
2921 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
2925 if (ntries == 5000) {
2926 device_printf(sc->sc_dev,
2927 "timeout waiting for NIC to power up\n");
2934 wpi_reset(struct wpi_softc *sc)
2939 DPRINTFN(WPI_DEBUG_HW,
2940 ("Resetting the card - clearing any uploaded firmware\n"));
2942 /* clear any pending interrupts */
2943 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
2945 tmp = WPI_READ(sc, WPI_PLL_CTL);
2946 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
2948 tmp = WPI_READ(sc, WPI_CHICKEN);
2949 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
2951 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2952 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
2954 /* wait for clock stabilization */
2955 for (ntries = 0; ntries < 25000; ntries++) {
2956 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
2960 if (ntries == 25000) {
2961 device_printf(sc->sc_dev,
2962 "timeout waiting for clock stabilization\n");
2966 /* initialize EEPROM */
2967 tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
2969 if ((tmp & WPI_EEPROM_VERSION) == 0) {
2970 device_printf(sc->sc_dev, "EEPROM not found\n");
2973 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
2979 wpi_hw_config(struct wpi_softc *sc)
2983 /* voodoo from the Linux "driver".. */
2984 hw = WPI_READ(sc, WPI_HWCONFIG);
2986 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
2987 if ((rev & 0xc0) == 0x40)
2988 hw |= WPI_HW_ALM_MB;
2989 else if (!(rev & 0x80))
2990 hw |= WPI_HW_ALM_MM;
2992 if (sc->cap == 0x80)
2993 hw |= WPI_HW_SKU_MRC;
2995 hw &= ~WPI_HW_REV_D;
2996 if ((le16toh(sc->rev) & 0xf0) == 0xd0)
3000 hw |= WPI_HW_TYPE_B;
3002 WPI_WRITE(sc, WPI_HWCONFIG, hw);
3006 wpi_rfkill_resume(struct wpi_softc *sc)
3008 struct ifnet *ifp = sc->sc_ifp;
3009 struct ieee80211com *ic = ifp->if_l2com;
3010 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3013 /* enable firmware again */
3014 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3015 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3017 /* wait for thermal sensors to calibrate */
3018 for (ntries = 0; ntries < 1000; ntries++) {
3019 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3024 if (ntries == 1000) {
3025 device_printf(sc->sc_dev,
3026 "timeout waiting for thermal calibration\n");
3029 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3031 if (wpi_config(sc) != 0) {
3032 device_printf(sc->sc_dev, "device config failed\n");
3036 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3037 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3038 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3041 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3042 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
3043 ieee80211_beacon_miss(ic);
3044 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
3046 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
3048 ieee80211_scan_next(vap);
3049 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3053 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3057 wpi_init_locked(struct wpi_softc *sc, int force)
3059 struct ifnet *ifp = sc->sc_ifp;
3063 wpi_stop_locked(sc);
3064 (void)wpi_reset(sc);
3067 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
3069 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
3070 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
3073 (void)wpi_power_up(sc);
3078 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr);
3079 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr +
3080 offsetof(struct wpi_shared, next));
3081 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7);
3082 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
3087 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
3088 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
3089 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
3090 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
3091 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
3092 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
3093 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
3095 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr);
3096 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
3098 for (qid = 0; qid < 6; qid++) {
3099 WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
3100 WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
3101 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
3105 /* clear "radio off" and "disable command" bits (reversed logic) */
3106 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3107 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3108 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3110 /* clear any pending interrupts */
3111 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
3113 /* enable interrupts */
3114 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
3116 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3117 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3119 if ((wpi_load_firmware(sc)) != 0) {
3120 device_printf(sc->sc_dev,
3121 "A problem occurred loading the firmware to the driver\n");
3125 /* At this point the firmware is up and running. If the hardware
3126 * RF switch is turned off thermal calibration will fail, though
3127 * the card is still happy to continue to accept commands, catch
3128 * this case and schedule a task to watch for it to be turned on.
3131 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3135 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
3136 device_printf(sc->sc_dev,"Radio Transmitter is switched off\n");
3140 /* wait for thermal sensors to calibrate */
3141 for (ntries = 0; ntries < 1000; ntries++) {
3142 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3147 if (ntries == 1000) {
3148 device_printf(sc->sc_dev,
3149 "timeout waiting for thermal sensors calibration\n");
3152 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3154 if (wpi_config(sc) != 0) {
3155 device_printf(sc->sc_dev, "device config failed\n");
3159 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3160 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3162 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3168 struct wpi_softc *sc = arg;
3169 struct ifnet *ifp = sc->sc_ifp;
3170 struct ieee80211com *ic = ifp->if_l2com;
3173 wpi_init_locked(sc, 0);
3176 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3177 ieee80211_start_all(ic); /* start all vaps */
3181 wpi_stop_locked(struct wpi_softc *sc)
3183 struct ifnet *ifp = sc->sc_ifp;
3187 sc->sc_tx_timer = 0;
3188 sc->sc_scan_timer = 0;
3189 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
3190 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3191 callout_stop(&sc->watchdog_to);
3192 callout_stop(&sc->calib_to);
3195 /* disable interrupts */
3196 WPI_WRITE(sc, WPI_MASK, 0);
3197 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
3198 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
3199 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
3202 wpi_mem_write(sc, WPI_MEM_MODE, 0);
3205 /* reset all Tx rings */
3206 for (ac = 0; ac < 4; ac++)
3207 wpi_reset_tx_ring(sc, &sc->txq[ac]);
3208 wpi_reset_tx_ring(sc, &sc->cmdq);
3211 wpi_reset_rx_ring(sc, &sc->rxq);
3214 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
3219 wpi_stop_master(sc);
3221 tmp = WPI_READ(sc, WPI_RESET);
3222 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
3223 sc->flags &= ~WPI_FLAG_BUSY;
3227 wpi_stop(struct wpi_softc *sc)
3230 wpi_stop_locked(sc);
3235 wpi_calib_timeout(void *arg)
3237 struct wpi_softc *sc = arg;
3238 struct ifnet *ifp = sc->sc_ifp;
3239 struct ieee80211com *ic = ifp->if_l2com;
3240 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3243 if (vap->iv_state != IEEE80211_S_RUN)
3246 /* update sensor data */
3247 temp = (int)WPI_READ(sc, WPI_TEMPERATURE);
3248 DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp));
3250 wpi_power_calibration(sc, temp);
3252 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
3256 * This function is called periodically (every 60 seconds) to adjust output
3257 * power to temperature changes.
3260 wpi_power_calibration(struct wpi_softc *sc, int temp)
3262 struct ifnet *ifp = sc->sc_ifp;
3263 struct ieee80211com *ic = ifp->if_l2com;
3264 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3266 /* sanity-check read value */
3267 if (temp < -260 || temp > 25) {
3268 /* this can't be correct, ignore */
3269 DPRINTFN(WPI_DEBUG_TEMP,
3270 ("out-of-range temperature reported: %d\n", temp));
3274 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp));
3276 /* adjust Tx power if need be */
3277 if (abs(temp - sc->temp) <= 6)
3282 if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) {
3283 /* just warn, too bad for the automatic calibration... */
3284 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3289 * Read the eeprom to find out what channels are valid for the given
3290 * band and update net80211 with what we find.
3293 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
3295 struct ifnet *ifp = sc->sc_ifp;
3296 struct ieee80211com *ic = ifp->if_l2com;
3297 const struct wpi_chan_band *band = &wpi_bands[n];
3298 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND];
3299 struct ieee80211_channel *c;
3300 int chan, i, passive;
3302 wpi_read_prom_data(sc, band->addr, channels,
3303 band->nchan * sizeof (struct wpi_eeprom_chan));
3305 for (i = 0; i < band->nchan; i++) {
3306 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
3307 DPRINTFN(WPI_DEBUG_HW,
3308 ("Channel Not Valid: %d, band %d\n",
3314 chan = band->chan[i];
3315 c = &ic->ic_channels[ic->ic_nchans++];
3317 /* is active scan allowed on this channel? */
3318 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) {
3319 passive = IEEE80211_CHAN_PASSIVE;
3322 if (n == 0) { /* 2GHz band */
3324 c->ic_freq = ieee80211_ieee2mhz(chan,
3325 IEEE80211_CHAN_2GHZ);
3326 c->ic_flags = IEEE80211_CHAN_B | passive;
3328 c = &ic->ic_channels[ic->ic_nchans++];
3330 c->ic_freq = ieee80211_ieee2mhz(chan,
3331 IEEE80211_CHAN_2GHZ);
3332 c->ic_flags = IEEE80211_CHAN_G | passive;
3334 } else { /* 5GHz band */
3336 * Some 3945ABG adapters support channels 7, 8, 11
3337 * and 12 in the 2GHz *and* 5GHz bands.
3338 * Because of limitations in our net80211(9) stack,
3339 * we can't support these channels in 5GHz band.
3340 * XXX not true; just need to map to proper frequency
3346 c->ic_freq = ieee80211_ieee2mhz(chan,
3347 IEEE80211_CHAN_5GHZ);
3348 c->ic_flags = IEEE80211_CHAN_A | passive;
3351 /* save maximum allowed power for this channel */
3352 sc->maxpwr[chan] = channels[i].maxpwr;
3355 // XXX We can probably use this an get rid of maxpwr - ben 20070617
3356 ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr;
3357 //ic->ic_channels[chan].ic_minpower...
3358 //ic->ic_channels[chan].ic_maxregtxpower...
3361 DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d"
3362 " passive=%d, offset %d\n", chan, c->ic_freq,
3363 channels[i].flags, sc->maxpwr[chan],
3364 (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0,
3370 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
3372 struct wpi_power_group *group = &sc->groups[n];
3373 struct wpi_eeprom_group rgroup;
3376 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup,
3379 /* save power group information */
3380 group->chan = rgroup.chan;
3381 group->maxpwr = rgroup.maxpwr;
3382 /* temperature at which the samples were taken */
3383 group->temp = (int16_t)le16toh(rgroup.temp);
3385 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3386 group->chan, group->maxpwr, group->temp));
3388 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
3389 group->samples[i].index = rgroup.samples[i].index;
3390 group->samples[i].power = rgroup.samples[i].power;
3392 DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3393 group->samples[i].index, group->samples[i].power));
3398 * Update Tx power to match what is defined for channel `c'.
3401 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async)
3403 struct ifnet *ifp = sc->sc_ifp;
3404 struct ieee80211com *ic = ifp->if_l2com;
3405 struct wpi_power_group *group;
3406 struct wpi_cmd_txpower txpower;
3410 /* get channel number */
3411 chan = ieee80211_chan2ieee(ic, c);
3413 /* find the power group to which this channel belongs */
3414 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3415 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3416 if (chan <= group->chan)
3419 group = &sc->groups[0];
3421 memset(&txpower, 0, sizeof txpower);
3422 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1;
3423 txpower.channel = htole16(chan);
3425 /* set Tx power for all OFDM and CCK rates */
3426 for (i = 0; i <= 11 ; i++) {
3427 /* retrieve Tx power for this channel/rate combination */
3428 int idx = wpi_get_power_index(sc, group, c,
3429 wpi_ridx_to_rate[i]);
3431 txpower.rates[i].rate = wpi_ridx_to_plcp[i];
3433 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3434 txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx];
3435 txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx];
3437 txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx];
3438 txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx];
3440 DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3441 chan, wpi_ridx_to_rate[i], idx));
3444 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async);
3448 * Determine Tx power index for a given channel/rate combination.
3449 * This takes into account the regulatory information from EEPROM and the
3450 * current temperature.
3453 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3454 struct ieee80211_channel *c, int rate)
3456 /* fixed-point arithmetic division using a n-bit fractional part */
3457 #define fdivround(a, b, n) \
3458 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3460 /* linear interpolation */
3461 #define interpolate(x, x1, y1, x2, y2, n) \
3462 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3464 struct ifnet *ifp = sc->sc_ifp;
3465 struct ieee80211com *ic = ifp->if_l2com;
3466 struct wpi_power_sample *sample;
3470 /* get channel number */
3471 chan = ieee80211_chan2ieee(ic, c);
3473 /* default power is group's maximum power - 3dB */
3474 pwr = group->maxpwr / 2;
3476 /* decrease power for highest OFDM rates to reduce distortion */
3478 case 72: /* 36Mb/s */
3479 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5;
3481 case 96: /* 48Mb/s */
3482 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3484 case 108: /* 54Mb/s */
3485 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3489 /* never exceed channel's maximum allowed Tx power */
3490 pwr = min(pwr, sc->maxpwr[chan]);
3492 /* retrieve power index into gain tables from samples */
3493 for (sample = group->samples; sample < &group->samples[3]; sample++)
3494 if (pwr > sample[1].power)
3496 /* fixed-point linear interpolation using a 19-bit fractional part */
3497 idx = interpolate(pwr, sample[0].power, sample[0].index,
3498 sample[1].power, sample[1].index, 19);
3501 * Adjust power index based on current temperature
3502 * - if colder than factory-calibrated: decreate output power
3503 * - if warmer than factory-calibrated: increase output power
3505 idx -= (sc->temp - group->temp) * 11 / 100;
3507 /* decrease power for CCK rates (-5dB) */
3508 if (!WPI_RATE_IS_OFDM(rate))
3511 /* keep power index in a valid range */
3514 if (idx > WPI_MAX_PWR_INDEX)
3515 return WPI_MAX_PWR_INDEX;
3523 * Called by net80211 framework to indicate that a scan
3524 * is starting. This function doesn't actually do the scan,
3525 * wpi_scan_curchan starts things off. This function is more
3526 * of an early warning from the framework we should get ready
3530 wpi_scan_start(struct ieee80211com *ic)
3532 struct ifnet *ifp = ic->ic_ifp;
3533 struct wpi_softc *sc = ifp->if_softc;
3536 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3541 * Called by the net80211 framework, indicates that the
3542 * scan has ended. If there is a scan in progress on the card
3543 * then it should be aborted.
3546 wpi_scan_end(struct ieee80211com *ic)
3552 * Called by the net80211 framework to indicate to the driver
3553 * that the channel should be changed
3556 wpi_set_channel(struct ieee80211com *ic)
3558 struct ifnet *ifp = ic->ic_ifp;
3559 struct wpi_softc *sc = ifp->if_softc;
3563 * Only need to set the channel in Monitor mode. AP scanning and auth
3564 * are already taken care of by their respective firmware commands.
3566 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
3568 error = wpi_config(sc);
3571 device_printf(sc->sc_dev,
3572 "error %d settting channel\n", error);
3577 * Called by net80211 to indicate that we need to scan the current
3578 * channel. The channel is previously be set via the wpi_set_channel
3582 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3584 struct ieee80211vap *vap = ss->ss_vap;
3585 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3586 struct wpi_softc *sc = ifp->if_softc;
3590 ieee80211_cancel_scan(vap);
3595 * Called by the net80211 framework to indicate
3596 * the minimum dwell time has been met, terminate the scan.
3597 * We don't actually terminate the scan as the firmware will notify
3598 * us when it's finished and we have no way to interrupt it.
3601 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
3603 /* NB: don't try to abort scan; wait for firmware to finish */
3607 wpi_hwreset(void *arg, int pending)
3609 struct wpi_softc *sc = arg;
3612 wpi_init_locked(sc, 0);
3617 wpi_rfreset(void *arg, int pending)
3619 struct wpi_softc *sc = arg;
3622 wpi_rfkill_resume(sc);
3627 * Allocate DMA-safe memory for firmware transfer.
3630 wpi_alloc_fwmem(struct wpi_softc *sc)
3632 /* allocate enough contiguous space to store text and data */
3633 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
3634 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1,
3639 wpi_free_fwmem(struct wpi_softc *sc)
3641 wpi_dma_contig_free(&sc->fw_dma);
3645 * Called every second, wpi_watchdog used by the watch dog timer
3646 * to check that the card is still alive
3649 wpi_watchdog(void *arg)
3651 struct wpi_softc *sc = arg;
3652 struct ifnet *ifp = sc->sc_ifp;
3653 struct ieee80211com *ic = ifp->if_l2com;
3656 DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n"));
3658 if (sc->flags & WPI_FLAG_HW_RADIO_OFF) {
3659 /* No need to lock firmware memory */
3660 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3662 if ((tmp & 0x1) == 0) {
3663 /* Radio kill switch is still off */
3664 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3668 device_printf(sc->sc_dev, "Hardware Switch Enabled\n");
3669 ieee80211_runtask(ic, &sc->sc_radiotask);
3673 if (sc->sc_tx_timer > 0) {
3674 if (--sc->sc_tx_timer == 0) {
3675 device_printf(sc->sc_dev,"device timeout\n");
3677 ieee80211_runtask(ic, &sc->sc_restarttask);
3680 if (sc->sc_scan_timer > 0) {
3681 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3682 if (--sc->sc_scan_timer == 0 && vap != NULL) {
3683 device_printf(sc->sc_dev,"scan timeout\n");
3684 ieee80211_cancel_scan(vap);
3685 ieee80211_runtask(ic, &sc->sc_restarttask);
3689 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3690 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3694 static const char *wpi_cmd_str(int cmd)
3697 case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD";
3698 case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE";
3699 case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE";
3700 case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME";
3701 case WPI_CMD_TSF: return "WPI_CMD_TSF";
3702 case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE";
3703 case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA";
3704 case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP";
3705 case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED";
3706 case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE";
3707 case WPI_CMD_SCAN: return "WPI_CMD_SCAN";
3708 case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON";
3709 case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER";
3710 case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH";
3713 KASSERT(1, ("Unknown Command: %d\n", cmd));
3714 return "UNKNOWN CMD"; /* Make the compiler happy */
3719 MODULE_DEPEND(wpi, pci, 1, 1, 1);
3720 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3721 MODULE_DEPEND(wpi, firmware, 1, 1, 1);