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"
23 __FBSDID("$FreeBSD: src/sys/dev/wpi/if_wpi.c,v 1.27.2.2 2010/02/14 09:34:27 gavin Exp $");
27 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
29 * The 3945ABG network adapter doesn't use traditional hardware as
30 * many other adaptors do. Instead at run time the eeprom is set into a known
31 * state and told to load boot firmware. The boot firmware loads an init and a
32 * main binary firmware image into SRAM on the card via DMA.
33 * Once the firmware is loaded, the driver/hw then
34 * communicate by way of circular dma rings via the the SRAM to the firmware.
36 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
37 * The 4 tx data rings allow for prioritization QoS.
39 * The rx data ring consists of 32 dma buffers. Two registers are used to
40 * indicate where in the ring the driver and the firmware are up to. The
41 * driver sets the initial read index (reg1) and the initial write index (reg2),
42 * the firmware updates the read index (reg1) on rx of a packet and fires an
43 * interrupt. The driver then processes the buffers starting at reg1 indicating
44 * to the firmware which buffers have been accessed by updating reg2. At the
45 * same time allocating new memory for the processed buffer.
47 * A similar thing happens with the tx rings. The difference is the firmware
48 * stop processing buffers once the queue is full and until confirmation
49 * of a successful transmition (tx_intr) has occurred.
51 * The command ring operates in the same manner as the tx queues.
53 * All communication direct to the card (ie eeprom) is classed as Stage1
56 * All communication via the firmware to the card is classed as State2.
57 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
58 * firmware. The bootstrap firmware and runtime firmware are loaded
59 * from host memory via dma to the card then told to execute. From this point
60 * 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>
81 #include <sys/resource.h>
84 #include <bus/pci/pcireg.h>
85 #include <bus/pci/pcivar.h>
89 #include <net/if_arp.h>
90 #include <net/ifq_var.h>
91 #include <net/ethernet.h>
92 #include <net/if_dl.h>
93 #include <net/if_media.h>
94 #include <net/if_types.h>
96 #include <netproto/802_11/ieee80211_var.h>
97 #include <netproto/802_11/ieee80211_radiotap.h>
98 #include <netproto/802_11/ieee80211_regdomain.h>
99 #include <netproto/802_11/ieee80211_ratectl.h>
101 #include <netinet/in.h>
102 #include <netinet/in_systm.h>
103 #include <netinet/in_var.h>
104 #include <netinet/ip.h>
105 #include <netinet/if_ether.h>
107 /* XXX: move elsewhere */
108 #define abs(x) (((x) < 0) ? -(x) : (x))
110 #include "if_wpireg.h"
111 #include "if_wpivar.h"
116 #define DPRINTF(x) do { if (wpi_debug != 0) kprintf x; } while (0)
117 #define DPRINTFN(n, x) do { if (wpi_debug & n) kprintf x; } while (0)
118 #define WPI_DEBUG_SET (wpi_debug != 0)
121 WPI_DEBUG_UNUSED = 0x00000001, /* Unused */
122 WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */
123 WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/
124 WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */
125 WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/
126 WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */
127 WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */
128 WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */
129 WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */
130 WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */
131 WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */
132 WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */
133 WPI_DEBUG_ANY = 0xffffffff
136 static int wpi_debug = 1;
137 SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level");
138 TUNABLE_INT("debug.wpi", &wpi_debug);
142 #define DPRINTFN(n, x)
143 #define WPI_DEBUG_SET 0
153 static const struct wpi_ident wpi_ident_table[] = {
154 /* The below entries support ABG regardless of the subid */
155 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
156 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
157 /* The below entries only support BG */
158 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
159 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
160 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
161 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
165 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
166 const char name[IFNAMSIZ], int unit, int opmode,
167 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
168 const uint8_t mac[IEEE80211_ADDR_LEN]);
169 static void wpi_vap_delete(struct ieee80211vap *);
170 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
171 void **, bus_size_t, bus_size_t, int);
172 static void wpi_dma_contig_free(struct wpi_dma_info *);
173 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
174 static int wpi_alloc_shared(struct wpi_softc *);
175 static void wpi_free_shared(struct wpi_softc *);
176 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
177 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
178 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
179 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
181 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
182 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
183 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
184 const uint8_t mac[IEEE80211_ADDR_LEN]);
185 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
186 static void wpi_mem_lock(struct wpi_softc *);
187 static void wpi_mem_unlock(struct wpi_softc *);
188 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
189 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
190 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
191 const uint32_t *, int);
192 static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
193 static int wpi_alloc_fwmem(struct wpi_softc *);
194 static void wpi_free_fwmem(struct wpi_softc *);
195 static int wpi_load_firmware(struct wpi_softc *);
196 static void wpi_unload_firmware(struct wpi_softc *);
197 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int);
198 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *,
199 struct wpi_rx_data *);
200 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *);
201 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *);
202 static void wpi_notif_intr(struct wpi_softc *);
203 static void wpi_intr(void *);
204 static uint8_t wpi_plcp_signal(int);
205 static void wpi_watchdog(void *);
206 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
207 struct ieee80211_node *, int);
208 static void wpi_start(struct ifnet *);
209 static void wpi_start_locked(struct ifnet *);
210 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
211 const struct ieee80211_bpf_params *);
212 static void wpi_scan_start(struct ieee80211com *);
213 static void wpi_scan_end(struct ieee80211com *);
214 static void wpi_set_channel(struct ieee80211com *);
215 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
216 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
217 static int wpi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
218 static void wpi_read_eeprom(struct wpi_softc *,
219 uint8_t macaddr[IEEE80211_ADDR_LEN]);
220 static void wpi_read_eeprom_channels(struct wpi_softc *, int);
221 static void wpi_read_eeprom_group(struct wpi_softc *, int);
222 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int);
223 static int wpi_wme_update(struct ieee80211com *);
224 static int wpi_mrr_setup(struct wpi_softc *);
225 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
226 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *);
228 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
230 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
231 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
232 static int wpi_scan(struct wpi_softc *);
233 static int wpi_config(struct wpi_softc *);
234 static void wpi_stop_master(struct wpi_softc *);
235 static int wpi_power_up(struct wpi_softc *);
236 static int wpi_reset(struct wpi_softc *);
237 static void wpi_hwreset(void *, int);
238 static void wpi_rfreset(void *, int);
239 static void wpi_hw_config(struct wpi_softc *);
240 static void wpi_init(void *);
241 static void wpi_init_locked(struct wpi_softc *, int);
242 static void wpi_stop(struct wpi_softc *);
243 static void wpi_stop_locked(struct wpi_softc *);
245 static void wpi_newassoc(struct ieee80211_node *, int);
246 static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
248 static void wpi_calib_timeout(void *);
249 static void wpi_power_calibration(struct wpi_softc *, int);
250 static int wpi_get_power_index(struct wpi_softc *,
251 struct wpi_power_group *, struct ieee80211_channel *, int);
253 static const char *wpi_cmd_str(int);
255 static int wpi_probe(device_t);
256 static int wpi_attach(device_t);
257 static int wpi_detach(device_t);
258 static int wpi_shutdown(device_t);
259 static int wpi_suspend(device_t);
260 static int wpi_resume(device_t);
263 static device_method_t wpi_methods[] = {
264 /* Device interface */
265 DEVMETHOD(device_probe, wpi_probe),
266 DEVMETHOD(device_attach, wpi_attach),
267 DEVMETHOD(device_detach, wpi_detach),
268 DEVMETHOD(device_shutdown, wpi_shutdown),
269 DEVMETHOD(device_suspend, wpi_suspend),
270 DEVMETHOD(device_resume, wpi_resume),
275 static driver_t wpi_driver = {
278 sizeof (struct wpi_softc)
281 static devclass_t wpi_devclass;
283 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, 0, 0);
285 static const uint8_t wpi_ridx_to_plcp[] = {
286 /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
287 /* R1-R4 (ral/ural is R4-R1) */
288 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
289 /* CCK: device-dependent */
292 static const uint8_t wpi_ridx_to_rate[] = {
293 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */
294 2, 4, 11, 22 /*CCK */
299 wpi_probe(device_t dev)
301 const struct wpi_ident *ident;
303 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
304 if (pci_get_vendor(dev) == ident->vendor &&
305 pci_get_device(dev) == ident->device) {
306 device_set_desc(dev, ident->name);
314 * Load the firmare image from disk to the allocated dma buffer.
315 * we also maintain the reference to the firmware pointer as there
316 * is times where we may need to reload the firmware but we are not
317 * in a context that can access the filesystem (ie taskq cause by restart)
319 * @return 0 on success, an errno on failure
322 wpi_load_firmware(struct wpi_softc *sc)
324 const struct firmware *fp;
325 struct wpi_dma_info *dma = &sc->fw_dma;
326 const struct wpi_firmware_hdr *hdr;
330 const uint8_t *itext, *idata, *rtext, *rdata, *btext;
331 uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz;
337 DPRINTFN(WPI_DEBUG_FIRMWARE,
338 ("Attempting Loading Firmware from wpi_fw module\n"));
343 lwkt_serialize_exit(ifp->if_serializer);
347 if ((img = firmware_image_load("", dma->tag)) == NULL) {
349 lwkt_serialize_enter(ifp->if_serializer);
355 if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) {
356 device_printf(sc->sc_dev,
357 "could not load firmware image 'wpifw_fw'\n");
361 lwkt_serialize_enter(ifp->if_serializer);
369 lwkt_serialize_enter(ifp->if_serializer);
374 /* Validate the firmware is minimum a particular version */
375 if (fp->version < WPI_FW_MINVERSION) {
376 device_printf(sc->sc_dev,
377 "firmware version is too old. Need %d, got %d\n",
386 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
387 device_printf(sc->sc_dev,
388 "firmware file too short: %zu bytes\n", fp->datasize);
393 hdr = (const struct wpi_firmware_hdr *)fp->data;
395 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
396 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
398 rtextsz = le32toh(hdr->rtextsz);
399 rdatasz = le32toh(hdr->rdatasz);
400 itextsz = le32toh(hdr->itextsz);
401 idatasz = le32toh(hdr->idatasz);
402 btextsz = le32toh(hdr->btextsz);
404 /* check that all firmware segments are present */
405 if (fp->datasize < sizeof (struct wpi_firmware_hdr) +
406 rtextsz + rdatasz + itextsz + idatasz + btextsz) {
407 device_printf(sc->sc_dev,
408 "firmware file too short: %zu bytes\n", fp->datasize);
409 error = ENXIO; /* XXX appropriate error code? */
413 /* get pointers to firmware segments */
414 rtext = (const uint8_t *)(hdr + 1);
415 rdata = rtext + rtextsz;
416 itext = rdata + rdatasz;
417 idata = itext + itextsz;
418 btext = idata + idatasz;
420 DPRINTFN(WPI_DEBUG_FIRMWARE,
421 ("Firmware Version: Major %d, Minor %d, Driver %d, \n"
422 "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n",
423 (le32toh(hdr->version) & 0xff000000) >> 24,
424 (le32toh(hdr->version) & 0x00ff0000) >> 16,
425 (le32toh(hdr->version) & 0x0000ffff),
427 itextsz, idatasz, btextsz));
429 DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext));
430 DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata));
431 DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext));
432 DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata));
433 DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext));
436 if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ ||
437 rdatasz > WPI_FW_MAIN_DATA_MAXSZ ||
438 itextsz > WPI_FW_INIT_TEXT_MAXSZ ||
439 idatasz > WPI_FW_INIT_DATA_MAXSZ ||
440 btextsz > WPI_FW_BOOT_TEXT_MAXSZ ||
441 (btextsz & 3) != 0) {
442 device_printf(sc->sc_dev, "firmware invalid\n");
447 /* copy initialization images into pre-allocated DMA-safe memory */
448 memcpy(dma->vaddr, idata, idatasz);
449 memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz);
451 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
453 /* tell adapter where to find initialization images */
455 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
456 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz);
457 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
458 dma->paddr + WPI_FW_INIT_DATA_MAXSZ);
459 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz);
462 /* load firmware boot code */
463 if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) {
464 device_printf(sc->sc_dev, "Failed to load microcode\n");
468 /* now press "execute" */
469 WPI_WRITE(sc, WPI_RESET, 0);
471 /* wait at most one second for the first alive notification */
472 if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) {
473 device_printf(sc->sc_dev,
474 "timeout waiting for adapter to initialize\n");
478 /* copy runtime images into pre-allocated DMA-sage memory */
479 memcpy(dma->vaddr, rdata, rdatasz);
480 memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz);
481 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
483 /* tell adapter where to find runtime images */
485 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
486 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz);
487 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
488 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ);
489 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz);
492 /* wait at most one second for the first alive notification */
493 if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) {
494 device_printf(sc->sc_dev,
495 "timeout waiting for adapter to initialize2\n");
499 DPRINTFN(WPI_DEBUG_FIRMWARE,
500 ("Firmware loaded to driver successfully\n"));
502 sc->sc_fw_image = img;
506 wpi_unload_firmware(sc);
511 * Free the referenced firmware image
514 wpi_unload_firmware(struct wpi_softc *sc)
522 lwkt_serialize_exit(ifp->if_serializer);
524 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
526 firmware_image_unload(sc->sc_fw_image);
529 lwkt_serialize_enter(ifp->if_serializer);
537 wpi_attach(device_t dev)
539 struct wpi_softc *sc = device_get_softc(dev);
541 struct ieee80211com *ic;
542 int ac, error, supportsa = 1;
544 const struct wpi_ident *ident;
545 uint8_t macaddr[IEEE80211_ADDR_LEN];
549 if (bootverbose || WPI_DEBUG_SET)
550 device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION);
553 * Some card's only support 802.11b/g not a, check to see if
554 * this is one such card. A 0x0 in the subdevice table indicates
555 * the entire subdevice range is to be ignored.
557 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
558 if (ident->subdevice &&
559 pci_get_subdevice(dev) == ident->subdevice) {
565 /* Create the tasks that can be queued */
566 TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc);
567 TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc);
571 callout_init(&sc->calib_to);
572 callout_init(&sc->watchdog_to);
574 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
575 device_printf(dev, "chip is in D%d power mode "
576 "-- setting to D0\n", pci_get_powerstate(dev));
577 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
580 /* disable the retry timeout register */
581 pci_write_config(dev, 0x41, 0, 1);
583 /* enable bus-mastering */
584 pci_enable_busmaster(dev);
586 sc->mem_rid = PCIR_BAR(0);
587 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
589 if (sc->mem == NULL) {
590 device_printf(dev, "could not allocate memory resource\n");
595 sc->sc_st = rman_get_bustag(sc->mem);
596 sc->sc_sh = rman_get_bushandle(sc->mem);
599 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
600 RF_ACTIVE | RF_SHAREABLE);
601 if (sc->irq == NULL) {
602 device_printf(dev, "could not allocate interrupt resource\n");
608 * Allocate DMA memory for firmware transfers.
610 if ((error = wpi_alloc_fwmem(sc)) != 0) {
611 kprintf(": could not allocate firmware memory\n");
617 * Put adapter into a known state.
619 if ((error = wpi_reset(sc)) != 0) {
620 device_printf(dev, "could not reset adapter\n");
625 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
626 if (bootverbose || WPI_DEBUG_SET)
627 device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp);
631 /* Allocate shared page */
632 if ((error = wpi_alloc_shared(sc)) != 0) {
633 device_printf(dev, "could not allocate shared page\n");
637 /* tx data queues - 4 for QoS purposes */
638 for (ac = 0; ac < WME_NUM_AC; ac++) {
639 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac);
641 device_printf(dev, "could not allocate Tx ring %d\n",ac);
646 /* command queue to talk to the card's firmware */
647 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4);
649 device_printf(dev, "could not allocate command ring\n");
653 /* receive data queue */
654 error = wpi_alloc_rx_ring(sc, &sc->rxq);
656 device_printf(dev, "could not allocate Rx ring\n");
660 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
662 device_printf(dev, "can not if_alloc()\n");
669 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
670 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
672 /* set device capabilities */
674 IEEE80211_C_STA /* station mode supported */
675 | IEEE80211_C_MONITOR /* monitor mode supported */
676 | IEEE80211_C_TXPMGT /* tx power management */
677 | IEEE80211_C_SHSLOT /* short slot time supported */
678 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
679 | IEEE80211_C_WPA /* 802.11i */
680 /* XXX looks like WME is partly supported? */
682 | IEEE80211_C_IBSS /* IBSS mode support */
683 | IEEE80211_C_BGSCAN /* capable of bg scanning */
684 | IEEE80211_C_WME /* 802.11e */
685 | IEEE80211_C_HOSTAP /* Host access point mode */
690 * Read in the eeprom and also setup the channels for
691 * net80211. We don't set the rates as net80211 does this for us
693 wpi_read_eeprom(sc, macaddr);
695 if (bootverbose || WPI_DEBUG_SET) {
696 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain);
697 device_printf(sc->sc_dev, "Hardware Type: %c\n",
698 sc->type > 1 ? 'B': '?');
699 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
700 ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?');
701 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
702 supportsa ? "does" : "does not");
704 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check
705 what sc->rev really represents - benjsc 20070615 */
708 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
710 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
711 ifp->if_init = wpi_init;
712 ifp->if_ioctl = wpi_ioctl;
713 ifp->if_start = wpi_start;
714 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
715 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
716 ifq_set_ready(&ifp->if_snd);
718 ieee80211_ifattach(ic, macaddr);
719 /* override default methods */
720 ic->ic_node_alloc = wpi_node_alloc;
721 ic->ic_newassoc = wpi_newassoc;
722 ic->ic_raw_xmit = wpi_raw_xmit;
723 ic->ic_wme.wme_update = wpi_wme_update;
724 ic->ic_scan_start = wpi_scan_start;
725 ic->ic_scan_end = wpi_scan_end;
726 ic->ic_set_channel = wpi_set_channel;
727 ic->ic_scan_curchan = wpi_scan_curchan;
728 ic->ic_scan_mindwell = wpi_scan_mindwell;
730 ic->ic_vap_create = wpi_vap_create;
731 ic->ic_vap_delete = wpi_vap_delete;
733 ieee80211_radiotap_attach(ic,
734 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
735 WPI_TX_RADIOTAP_PRESENT,
736 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
737 WPI_RX_RADIOTAP_PRESENT);
740 * Hook our interrupt after all initialization is complete.
742 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
743 wpi_intr, sc, &sc->sc_ih, ifp->if_serializer);
745 device_printf(dev, "could not set up interrupt\n");
750 ieee80211_announce(ic);
752 ieee80211_announce_channels(ic);
756 fail: wpi_detach(dev);
761 wpi_detach(device_t dev)
763 struct wpi_softc *sc = device_get_softc(dev);
764 struct ifnet *ifp = sc->sc_ifp;
765 struct ieee80211com *ic;
771 ieee80211_draintask(ic, &sc->sc_restarttask);
772 ieee80211_draintask(ic, &sc->sc_radiotask);
774 callout_stop(&sc->watchdog_to);
775 callout_stop(&sc->calib_to);
776 ieee80211_ifdetach(ic);
780 if (sc->txq[0].data_dmat) {
781 for (ac = 0; ac < WME_NUM_AC; ac++)
782 wpi_free_tx_ring(sc, &sc->txq[ac]);
784 wpi_free_tx_ring(sc, &sc->cmdq);
785 wpi_free_rx_ring(sc, &sc->rxq);
789 if (sc->fw_fp != NULL) {
790 wpi_unload_firmware(sc);
797 if (sc->irq != NULL) {
798 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
799 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
803 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
808 WPI_LOCK_DESTROY(sc);
813 static struct ieee80211vap *
814 wpi_vap_create(struct ieee80211com *ic,
815 const char name[IFNAMSIZ], int unit, int opmode, int flags,
816 const uint8_t bssid[IEEE80211_ADDR_LEN],
817 const uint8_t mac[IEEE80211_ADDR_LEN])
820 struct ieee80211vap *vap;
822 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
824 wvp = (struct wpi_vap *) kmalloc(sizeof(struct wpi_vap),
825 M_80211_VAP, M_NOWAIT | M_ZERO);
829 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
830 /* override with driver methods */
831 wvp->newstate = vap->iv_newstate;
832 vap->iv_newstate = wpi_newstate;
834 ieee80211_ratectl_init(vap);
837 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
838 ic->ic_opmode = opmode;
843 wpi_vap_delete(struct ieee80211vap *vap)
845 struct wpi_vap *wvp = WPI_VAP(vap);
847 ieee80211_ratectl_deinit(vap);
848 ieee80211_vap_detach(vap);
849 kfree(wvp, M_80211_VAP);
853 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
858 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
860 *(bus_addr_t *)arg = segs[0].ds_addr;
864 * Allocates a contiguous block of dma memory of the requested size and
865 * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217,
866 * allocations greater than 4096 may fail. Hence if the requested alignment is
867 * greater we allocate 'alignment' size extra memory and shift the vaddr and
868 * paddr after the dma load. This bypasses the problem at the cost of a little
872 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
873 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
879 DPRINTFN(WPI_DEBUG_DMA,
880 ("Size: %zd - alignment %zd\n", size, alignment));
885 if (alignment > 4096) {
887 reqsize = size + alignment;
892 error = bus_dma_tag_create(dma->tag, align,
893 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
898 device_printf(sc->sc_dev,
899 "could not create shared page DMA tag\n");
902 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start,
903 flags | BUS_DMA_ZERO, &dma->map);
905 device_printf(sc->sc_dev,
906 "could not allocate shared page DMA memory\n");
910 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start,
911 reqsize, wpi_dma_map_addr, &dma->paddr_start, flags);
913 /* Save the original pointers so we can free all the memory */
914 dma->paddr = dma->paddr_start;
915 dma->vaddr = dma->vaddr_start;
918 * Check the alignment and increment by 4096 until we get the
919 * requested alignment. Fail if can't obtain the alignment
922 if ((dma->paddr & (alignment -1 )) != 0) {
925 for (i = 0; i < alignment / 4096; i++) {
926 if ((dma->paddr & (alignment - 1 )) == 0)
931 if (i == alignment / 4096) {
932 device_printf(sc->sc_dev,
933 "alignment requirement was not satisfied\n");
939 device_printf(sc->sc_dev,
940 "could not load shared page DMA map\n");
950 wpi_dma_contig_free(dma);
955 wpi_dma_contig_free(struct wpi_dma_info *dma)
958 if (dma->map != NULL) {
959 if (dma->paddr_start != 0) {
960 bus_dmamap_sync(dma->tag, dma->map,
961 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
962 bus_dmamap_unload(dma->tag, dma->map);
964 bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map);
966 bus_dma_tag_destroy(dma->tag);
971 * Allocate a shared page between host and NIC.
974 wpi_alloc_shared(struct wpi_softc *sc)
978 error = wpi_dma_contig_alloc(sc, &sc->shared_dma,
979 (void **)&sc->shared, sizeof (struct wpi_shared),
984 device_printf(sc->sc_dev,
985 "could not allocate shared area DMA memory\n");
992 wpi_free_shared(struct wpi_softc *sc)
994 wpi_dma_contig_free(&sc->shared_dma);
998 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1005 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1006 (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t),
1007 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1010 device_printf(sc->sc_dev,
1011 "%s: could not allocate rx ring DMA memory, error %d\n",
1016 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
1017 BUS_SPACE_MAXADDR_32BIT,
1018 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
1019 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1021 device_printf(sc->sc_dev,
1022 "%s: bus_dma_tag_create_failed, error %d\n",
1030 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1031 struct wpi_rx_data *data = &ring->data[i];
1035 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1037 device_printf(sc->sc_dev,
1038 "%s: bus_dmamap_create failed, error %d\n",
1042 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1044 device_printf(sc->sc_dev,
1045 "%s: could not allocate rx mbuf\n", __func__);
1050 error = bus_dmamap_load(ring->data_dmat, data->map,
1051 mtod(m, caddr_t), MCLBYTES,
1052 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1053 if (error != 0 && error != EFBIG) {
1054 device_printf(sc->sc_dev,
1055 "%s: bus_dmamap_load failed, error %d\n",
1058 error = ENOMEM; /* XXX unique code */
1061 bus_dmamap_sync(ring->data_dmat, data->map,
1062 BUS_DMASYNC_PREWRITE);
1065 ring->desc[i] = htole32(paddr);
1067 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1068 BUS_DMASYNC_PREWRITE);
1071 wpi_free_rx_ring(sc, ring);
1076 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1082 WPI_WRITE(sc, WPI_RX_CONFIG, 0);
1084 for (ntries = 0; ntries < 100; ntries++) {
1085 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
1093 if (ntries == 100 && wpi_debug > 0)
1094 device_printf(sc->sc_dev, "timeout resetting Rx ring\n");
1101 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1105 wpi_dma_contig_free(&ring->desc_dma);
1107 for (i = 0; i < WPI_RX_RING_COUNT; i++)
1108 if (ring->data[i].m != NULL)
1109 m_freem(ring->data[i].m);
1113 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count,
1116 struct wpi_tx_data *data;
1120 ring->count = count;
1125 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1126 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc),
1127 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1130 device_printf(sc->sc_dev, "could not allocate tx dma memory\n");
1134 /* update shared page with ring's base address */
1135 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1137 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1138 count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN,
1142 device_printf(sc->sc_dev,
1143 "could not allocate tx command DMA memory\n");
1147 ring->data = kmalloc(count * sizeof (struct wpi_tx_data), M_DEVBUF,
1149 if (ring->data == NULL) {
1150 device_printf(sc->sc_dev,
1151 "could not allocate tx data slots\n");
1155 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
1156 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1157 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT,
1160 device_printf(sc->sc_dev, "could not create data DMA tag\n");
1164 for (i = 0; i < count; i++) {
1165 data = &ring->data[i];
1167 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1169 device_printf(sc->sc_dev,
1170 "could not create tx buf DMA map\n");
1173 bus_dmamap_sync(ring->data_dmat, data->map,
1174 BUS_DMASYNC_PREWRITE);
1180 wpi_free_tx_ring(sc, ring);
1185 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1187 struct wpi_tx_data *data;
1192 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
1193 for (ntries = 0; ntries < 100; ntries++) {
1194 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
1199 if (ntries == 100 && wpi_debug > 0)
1200 device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n",
1205 for (i = 0; i < ring->count; i++) {
1206 data = &ring->data[i];
1208 if (data->m != NULL) {
1209 bus_dmamap_unload(ring->data_dmat, data->map);
1220 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1222 struct wpi_tx_data *data;
1225 wpi_dma_contig_free(&ring->desc_dma);
1226 wpi_dma_contig_free(&ring->cmd_dma);
1228 if (ring->data != NULL) {
1229 for (i = 0; i < ring->count; i++) {
1230 data = &ring->data[i];
1232 if (data->m != NULL) {
1233 bus_dmamap_sync(ring->data_dmat, data->map,
1234 BUS_DMASYNC_POSTWRITE);
1235 bus_dmamap_unload(ring->data_dmat, data->map);
1240 kfree(ring->data, M_DEVBUF);
1243 if (ring->data_dmat != NULL)
1244 bus_dma_tag_destroy(ring->data_dmat);
1248 wpi_shutdown(device_t dev)
1250 struct wpi_softc *sc = device_get_softc(dev);
1253 wpi_stop_locked(sc);
1254 wpi_unload_firmware(sc);
1261 wpi_suspend(device_t dev)
1263 struct wpi_softc *sc = device_get_softc(dev);
1270 wpi_resume(device_t dev)
1272 struct wpi_softc *sc = device_get_softc(dev);
1273 struct ifnet *ifp = sc->sc_ifp;
1275 pci_write_config(dev, 0x41, 0, 1);
1277 if (ifp->if_flags & IFF_UP) {
1278 wpi_init(ifp->if_softc);
1279 if (ifp->if_flags & IFF_RUNNING)
1286 static struct ieee80211_node *
1287 wpi_node_alloc(struct ieee80211vap *vap __unused,
1288 const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
1290 struct wpi_node *wn;
1292 wn = kmalloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
1298 * Called by net80211 when ever there is a change to 80211 state machine
1301 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1303 struct wpi_vap *wvp = WPI_VAP(vap);
1304 struct ieee80211com *ic = vap->iv_ic;
1305 struct ifnet *ifp = ic->ic_ifp;
1306 struct wpi_softc *sc = ifp->if_softc;
1309 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
1310 ieee80211_state_name[vap->iv_state],
1311 ieee80211_state_name[nstate], sc->flags));
1313 IEEE80211_UNLOCK(ic);
1315 if (nstate == IEEE80211_S_AUTH) {
1316 /* The node must be registered in the firmware before auth */
1317 error = wpi_auth(sc, vap);
1319 device_printf(sc->sc_dev,
1320 "%s: could not move to auth state, error %d\n",
1324 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1325 error = wpi_run(sc, vap);
1327 device_printf(sc->sc_dev,
1328 "%s: could not move to run state, error %d\n",
1332 if (nstate == IEEE80211_S_RUN) {
1333 /* RUN -> RUN transition; just restart the timers */
1334 wpi_calib_timeout(sc);
1335 /* XXX split out rate control timer */
1339 return wvp->newstate(vap, nstate, arg);
1343 * Grab exclusive access to NIC memory.
1346 wpi_mem_lock(struct wpi_softc *sc)
1351 tmp = WPI_READ(sc, WPI_GPIO_CTL);
1352 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
1354 /* spin until we actually get the lock */
1355 for (ntries = 0; ntries < 100; ntries++) {
1356 if ((WPI_READ(sc, WPI_GPIO_CTL) &
1357 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
1362 device_printf(sc->sc_dev, "could not lock memory\n");
1366 * Release lock on NIC memory.
1369 wpi_mem_unlock(struct wpi_softc *sc)
1371 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
1372 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
1376 wpi_mem_read(struct wpi_softc *sc, uint16_t addr)
1378 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
1379 return WPI_READ(sc, WPI_READ_MEM_DATA);
1383 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data)
1385 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
1386 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
1390 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr,
1391 const uint32_t *data, int wlen)
1393 for (; wlen > 0; wlen--, data++, addr+=4)
1394 wpi_mem_write(sc, addr, *data);
1398 * Read data from the EEPROM. We access EEPROM through the MAC instead of
1399 * using the traditional bit-bang method. Data is read up until len bytes have
1403 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len)
1407 uint8_t *out = data;
1411 for (; len > 0; len -= 2, addr++) {
1412 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
1414 for (ntries = 0; ntries < 10; ntries++) {
1415 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
1421 device_printf(sc->sc_dev, "could not read EEPROM\n");
1436 * The firmware text and data segments are transferred to the NIC using DMA.
1437 * The driver just copies the firmware into DMA-safe memory and tells the NIC
1438 * where to find it. Once the NIC has copied the firmware into its internal
1439 * memory, we can free our local copy in the driver.
1442 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size)
1446 DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size));
1448 size /= sizeof(uint32_t);
1452 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE,
1453 (const uint32_t *)fw, size);
1455 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
1456 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
1457 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
1460 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
1462 /* wait while the adapter is busy copying the firmware */
1463 for (error = 0, ntries = 0; ntries < 1000; ntries++) {
1464 uint32_t status = WPI_READ(sc, WPI_TX_STATUS);
1465 DPRINTFN(WPI_DEBUG_HW,
1466 ("firmware status=0x%x, val=0x%x, result=0x%x\n", status,
1467 WPI_TX_IDLE(6), status & WPI_TX_IDLE(6)));
1468 if (status & WPI_TX_IDLE(6)) {
1469 DPRINTFN(WPI_DEBUG_HW,
1470 ("Status Match! - ntries = %d\n", ntries));
1475 if (ntries == 1000) {
1476 device_printf(sc->sc_dev, "timeout transferring firmware\n");
1480 /* start the microcode executing */
1481 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE);
1489 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1490 struct wpi_rx_data *data)
1492 struct ifnet *ifp = sc->sc_ifp;
1493 struct ieee80211com *ic = ifp->if_l2com;
1494 struct wpi_rx_ring *ring = &sc->rxq;
1495 struct wpi_rx_stat *stat;
1496 struct wpi_rx_head *head;
1497 struct wpi_rx_tail *tail;
1498 struct ieee80211_node *ni;
1499 struct mbuf *m, *mnew;
1503 stat = (struct wpi_rx_stat *)(desc + 1);
1505 if (stat->len > WPI_STAT_MAXLEN) {
1506 device_printf(sc->sc_dev, "invalid rx statistic header\n");
1511 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1512 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len));
1514 DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d "
1515 "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len),
1516 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan,
1517 (uintmax_t)le64toh(tail->tstamp)));
1519 /* discard Rx frames with bad CRC early */
1520 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1521 DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__,
1522 le32toh(tail->flags)));
1526 if (le16toh(head->len) < sizeof (struct ieee80211_frame)) {
1527 DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__,
1528 le16toh(head->len)));
1533 /* XXX don't need mbuf, just dma buffer */
1534 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1536 DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n",
1541 error = bus_dmamap_load(ring->data_dmat, data->map,
1542 mtod(mnew, caddr_t), MCLBYTES,
1543 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1544 if (error != 0 && error != EFBIG) {
1545 device_printf(sc->sc_dev,
1546 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1551 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1553 /* finalize mbuf and swap in new one */
1555 m->m_pkthdr.rcvif = ifp;
1556 m->m_data = (caddr_t)(head + 1);
1557 m->m_pkthdr.len = m->m_len = le16toh(head->len);
1560 /* update Rx descriptor */
1561 ring->desc[ring->cur] = htole32(paddr);
1563 if (ieee80211_radiotap_active(ic)) {
1564 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1568 htole16(ic->ic_channels[head->chan].ic_freq);
1569 tap->wr_chan_flags =
1570 htole16(ic->ic_channels[head->chan].ic_flags);
1571 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
1572 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise);
1573 tap->wr_tsft = tail->tstamp;
1574 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1575 switch (head->rate) {
1577 case 10: tap->wr_rate = 2; break;
1578 case 20: tap->wr_rate = 4; break;
1579 case 55: tap->wr_rate = 11; break;
1580 case 110: tap->wr_rate = 22; break;
1582 case 0xd: tap->wr_rate = 12; break;
1583 case 0xf: tap->wr_rate = 18; break;
1584 case 0x5: tap->wr_rate = 24; break;
1585 case 0x7: tap->wr_rate = 36; break;
1586 case 0x9: tap->wr_rate = 48; break;
1587 case 0xb: tap->wr_rate = 72; break;
1588 case 0x1: tap->wr_rate = 96; break;
1589 case 0x3: tap->wr_rate = 108; break;
1590 /* unknown rate: should not happen */
1591 default: tap->wr_rate = 0;
1593 if (le16toh(head->flags) & 0x4)
1594 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1599 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1601 (void) ieee80211_input(ni, m, stat->rssi, 0);
1602 ieee80211_free_node(ni);
1604 (void) ieee80211_input_all(ic, m, stat->rssi, 0);
1610 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1612 struct ifnet *ifp = sc->sc_ifp;
1613 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1614 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1615 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1616 struct ieee80211_node *ni = txdata->ni;
1617 struct ieee80211vap *vap = ni->ni_vap;
1620 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1621 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1622 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1623 le32toh(stat->status)));
1626 * Update rate control statistics for the node.
1627 * XXX we should not count mgmt frames since they're always sent at
1628 * the lowest available bit-rate.
1629 * XXX frames w/o ACK shouldn't be used either
1631 if (stat->ntries > 0) {
1632 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1635 ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS,
1638 /* XXX oerrors should only count errors !maxtries */
1639 if ((le32toh(stat->status) & 0xff) != 1)
1644 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);
1645 bus_dmamap_unload(ring->data_dmat, txdata->map);
1646 /* XXX handle M_TXCB? */
1649 ieee80211_free_node(txdata->ni);
1654 sc->sc_tx_timer = 0;
1655 ifp->if_flags &= ~IFF_OACTIVE;
1656 wpi_start_locked(ifp);
1660 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1662 struct wpi_tx_ring *ring = &sc->cmdq;
1663 struct wpi_tx_data *data;
1665 DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x "
1666 "type=%s len=%d\n", desc->qid, desc->idx,
1667 desc->flags, wpi_cmd_str(desc->type),
1668 le32toh(desc->len)));
1670 if ((desc->qid & 7) != 4)
1671 return; /* not a command ack */
1673 data = &ring->data[desc->idx];
1675 /* if the command was mapped in a mbuf, free it */
1676 if (data->m != NULL) {
1677 bus_dmamap_unload(ring->data_dmat, data->map);
1682 sc->flags &= ~WPI_FLAG_BUSY;
1683 wakeup(&ring->cmd[desc->idx]);
1687 wpi_notif_intr(struct wpi_softc *sc)
1689 struct ifnet *ifp = sc->sc_ifp;
1690 struct ieee80211com *ic = ifp->if_l2com;
1691 struct wpi_rx_desc *desc;
1692 struct wpi_rx_data *data;
1695 hw = le32toh(sc->shared->next);
1696 while (sc->rxq.cur != hw) {
1697 data = &sc->rxq.data[sc->rxq.cur];
1698 desc = (void *)data->m->m_ext.ext_buf;
1700 DPRINTFN(WPI_DEBUG_NOTIFY,
1701 ("notify qid=%x idx=%d flags=%x type=%d len=%d\n",
1706 le32toh(desc->len)));
1708 if (!(desc->qid & 0x80)) /* reply to a command */
1709 wpi_cmd_intr(sc, desc);
1711 switch (desc->type) {
1713 /* a 802.11 frame was received */
1714 wpi_rx_intr(sc, desc, data);
1718 /* a 802.11 frame has been transmitted */
1719 wpi_tx_intr(sc, desc);
1724 struct wpi_ucode_info *uc =
1725 (struct wpi_ucode_info *)(desc + 1);
1727 /* the microcontroller is ready */
1728 DPRINTF(("microcode alive notification version %x "
1729 "alive %x\n", le32toh(uc->version),
1730 le32toh(uc->valid)));
1732 if (le32toh(uc->valid) != 1) {
1733 device_printf(sc->sc_dev,
1734 "microcontroller initialization failed\n");
1735 wpi_stop_locked(sc);
1739 case WPI_STATE_CHANGED:
1741 uint32_t *status = (uint32_t *)(desc + 1);
1743 /* enabled/disabled notification */
1744 DPRINTF(("state changed to %x\n", le32toh(*status)));
1746 if (le32toh(*status) & 1) {
1747 device_printf(sc->sc_dev,
1748 "Radio transmitter is switched off\n");
1749 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
1750 ifp->if_flags &= ~IFF_RUNNING;
1751 /* Disable firmware commands */
1752 WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD);
1756 case WPI_START_SCAN:
1759 struct wpi_start_scan *scan =
1760 (struct wpi_start_scan *)(desc + 1);
1763 DPRINTFN(WPI_DEBUG_SCANNING,
1764 ("scanning channel %d status %x\n",
1765 scan->chan, le32toh(scan->status)));
1771 struct wpi_stop_scan *scan =
1772 (struct wpi_stop_scan *)(desc + 1);
1774 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1776 DPRINTFN(WPI_DEBUG_SCANNING,
1777 ("scan finished nchan=%d status=%d chan=%d\n",
1778 scan->nchan, scan->status, scan->chan));
1780 sc->sc_scan_timer = 0;
1781 ieee80211_scan_next(vap);
1784 case WPI_MISSED_BEACON:
1786 struct wpi_missed_beacon *beacon =
1787 (struct wpi_missed_beacon *)(desc + 1);
1788 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1790 if (le32toh(beacon->consecutive) >=
1791 vap->iv_bmissthreshold) {
1792 DPRINTF(("Beacon miss: %u >= %u\n",
1793 le32toh(beacon->consecutive),
1794 vap->iv_bmissthreshold));
1795 ieee80211_beacon_miss(ic);
1801 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
1804 /* tell the firmware what we have processed */
1805 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
1806 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7);
1812 struct wpi_softc *sc = arg;
1817 r = WPI_READ(sc, WPI_INTR);
1818 if (r == 0 || r == 0xffffffff) {
1823 /* disable interrupts */
1824 WPI_WRITE(sc, WPI_MASK, 0);
1825 /* ack interrupts */
1826 WPI_WRITE(sc, WPI_INTR, r);
1828 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
1829 struct ifnet *ifp = sc->sc_ifp;
1830 struct ieee80211com *ic = ifp->if_l2com;
1831 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1833 device_printf(sc->sc_dev, "fatal firmware error\n");
1834 DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" :
1835 "(Hardware Error)"));
1837 ieee80211_cancel_scan(vap);
1838 ieee80211_runtask(ic, &sc->sc_restarttask);
1839 sc->flags &= ~WPI_FLAG_BUSY;
1844 if (r & WPI_RX_INTR)
1847 if (r & WPI_ALIVE_INTR) /* firmware initialized */
1850 /* re-enable interrupts */
1851 if (sc->sc_ifp->if_flags & IFF_UP)
1852 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
1858 wpi_plcp_signal(int rate)
1861 /* CCK rates (returned values are device-dependent) */
1865 case 22: return 110;
1867 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1868 /* R1-R4 (ral/ural is R4-R1) */
1869 case 12: return 0xd;
1870 case 18: return 0xf;
1871 case 24: return 0x5;
1872 case 36: return 0x7;
1873 case 48: return 0x9;
1874 case 72: return 0xb;
1875 case 96: return 0x1;
1876 case 108: return 0x3;
1878 /* unsupported rates (should not get there) */
1883 /* quickly determine if a given rate is CCK or OFDM */
1884 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1887 * Construct the data packet for a transmit buffer and acutally put
1888 * the buffer onto the transmit ring, kicking the card to process the
1892 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1895 struct ieee80211vap *vap = ni->ni_vap;
1896 struct ifnet *ifp = sc->sc_ifp;
1897 struct ieee80211com *ic = ifp->if_l2com;
1898 const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
1899 struct wpi_tx_ring *ring = &sc->txq[ac];
1900 struct wpi_tx_desc *desc;
1901 struct wpi_tx_data *data;
1902 struct wpi_tx_cmd *cmd;
1903 struct wpi_cmd_data *tx;
1904 struct ieee80211_frame *wh;
1905 const struct ieee80211_txparam *tp;
1906 struct ieee80211_key *k;
1908 int i, error, nsegs, rate, hdrlen, ismcast;
1909 bus_dma_segment_t segs[WPI_MAX_SCATTER];
1911 desc = &ring->desc[ring->cur];
1912 data = &ring->data[ring->cur];
1914 wh = mtod(m0, struct ieee80211_frame *);
1916 hdrlen = ieee80211_hdrsize(wh);
1917 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1919 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1920 k = ieee80211_crypto_encap(ni, m0);
1925 /* packet header may have moved, reset our local pointer */
1926 wh = mtod(m0, struct ieee80211_frame *);
1929 cmd = &ring->cmd[ring->cur];
1930 cmd->code = WPI_CMD_TX_DATA;
1932 cmd->qid = ring->qid;
1933 cmd->idx = ring->cur;
1935 tx = (struct wpi_cmd_data *)cmd->data;
1936 tx->flags = htole32(WPI_TX_AUTO_SEQ);
1937 tx->timeout = htole16(0);
1938 tx->ofdm_mask = 0xff;
1939 tx->cck_mask = 0x0f;
1940 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
1941 tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS;
1942 tx->len = htole16(m0->m_pkthdr.len);
1945 if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 ||
1946 !cap->cap_wmeParams[ac].wmep_noackPolicy)
1947 tx->flags |= htole32(WPI_TX_NEED_ACK);
1948 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
1949 tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP);
1954 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1955 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
1956 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1957 /* tell h/w to set timestamp in probe responses */
1958 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1959 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP);
1960 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
1961 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
1962 tx->timeout = htole16(3);
1964 tx->timeout = htole16(2);
1965 rate = tp->mgmtrate;
1966 } else if (ismcast) {
1967 rate = tp->mcastrate;
1968 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1969 rate = tp->ucastrate;
1971 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1972 rate = ni->ni_txrate;
1974 tx->rate = wpi_plcp_signal(rate);
1976 /* be very persistant at sending frames out */
1978 tx->data_ntries = tp->maxretry;
1980 tx->data_ntries = 30; /* XXX way too high */
1983 if (ieee80211_radiotap_active_vap(vap)) {
1984 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
1986 tap->wt_rate = rate;
1987 tap->wt_hwqueue = ac;
1988 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
1989 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1991 ieee80211_radiotap_tx(vap, m0);
1994 /* save and trim IEEE802.11 header */
1995 m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh);
1998 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map, m0, segs,
1999 1, &nsegs, BUS_DMA_NOWAIT);
2000 if (error != 0 && error != EFBIG) {
2001 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
2007 /* XXX use m_collapse */
2008 mnew = m_defrag(m0, M_NOWAIT);
2010 device_printf(sc->sc_dev,
2011 "could not defragment mbuf\n");
2017 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
2018 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
2020 device_printf(sc->sc_dev,
2021 "could not map mbuf (error %d)\n", error);
2030 DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n",
2031 ring->qid, ring->cur, m0->m_pkthdr.len, nsegs));
2033 /* first scatter/gather segment is used by the tx data command */
2034 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
2036 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2037 ring->cur * sizeof (struct wpi_tx_cmd));
2038 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data));
2039 for (i = 1; i <= nsegs; i++) {
2040 desc->segs[i].addr = htole32(segs[i - 1].ds_addr);
2041 desc->segs[i].len = htole32(segs[i - 1].ds_len);
2044 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2045 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2046 BUS_DMASYNC_PREWRITE);
2051 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2052 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2058 * Process data waiting to be sent on the IFNET output queue
2061 wpi_start(struct ifnet *ifp)
2063 struct wpi_softc *sc = ifp->if_softc;
2066 wpi_start_locked(ifp);
2071 wpi_start_locked(struct ifnet *ifp)
2073 struct wpi_softc *sc = ifp->if_softc;
2074 struct ieee80211_node *ni;
2078 WPI_LOCK_ASSERT(sc);
2080 if ((ifp->if_flags & IFF_RUNNING) == 0) {
2081 ifq_purge(&ifp->if_snd);
2086 IF_DEQUEUE(&ifp->if_snd, m);
2089 ac = M_WME_GETAC(m);
2090 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
2091 /* there is no place left in this ring */
2092 ifq_prepend(&ifp->if_snd, m);
2093 ifp->if_flags |= IFF_OACTIVE;
2096 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
2097 if (wpi_tx_data(sc, m, ni, ac) != 0) {
2098 ieee80211_free_node(ni);
2102 sc->sc_tx_timer = 5;
2107 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2108 const struct ieee80211_bpf_params *params)
2110 struct ieee80211com *ic = ni->ni_ic;
2111 struct ifnet *ifp = ic->ic_ifp;
2112 struct wpi_softc *sc = ifp->if_softc;
2114 /* prevent management frames from being sent if we're not ready */
2115 if (!(ifp->if_flags & IFF_RUNNING)) {
2117 ieee80211_free_node(ni);
2122 /* management frames go into ring 0 */
2123 if (sc->txq[0].queued > sc->txq[0].count - 8) {
2124 ifp->if_flags |= IFF_OACTIVE;
2127 ieee80211_free_node(ni);
2128 return ENOBUFS; /* XXX */
2132 if (wpi_tx_data(sc, m, ni, 0) != 0)
2134 sc->sc_tx_timer = 5;
2135 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
2142 ieee80211_free_node(ni);
2143 return EIO; /* XXX */
2147 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cred)
2149 struct wpi_softc *sc = ifp->if_softc;
2150 struct ieee80211com *ic = ifp->if_l2com;
2151 struct ifreq *ifr = (struct ifreq *) data;
2152 int error = 0, startall = 0;
2157 if ((ifp->if_flags & IFF_UP)) {
2158 if (!(ifp->if_flags & IFF_RUNNING)) {
2159 wpi_init_locked(sc, 0);
2162 } else if ((ifp->if_flags & IFF_RUNNING) ||
2163 (sc->flags & WPI_FLAG_HW_RADIO_OFF))
2164 wpi_stop_locked(sc);
2167 ieee80211_start_all(ic);
2170 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2173 error = ether_ioctl(ifp, cmd, data);
2183 * Extract various information from EEPROM.
2186 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2190 /* read the hardware capabilities, revision and SKU type */
2191 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1);
2192 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2);
2193 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1);
2195 /* read the regulatory domain */
2196 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4);
2198 /* read in the hw MAC address */
2199 wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6);
2201 /* read the list of authorized channels */
2202 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
2203 wpi_read_eeprom_channels(sc,i);
2205 /* read the power level calibration info for each group */
2206 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
2207 wpi_read_eeprom_group(sc,i);
2211 * Send a command to the firmware.
2214 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async)
2216 struct wpi_tx_ring *ring = &sc->cmdq;
2217 struct wpi_tx_desc *desc;
2218 struct wpi_tx_cmd *cmd;
2222 WPI_LOCK_ASSERT(sc);
2226 DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size,
2229 if (sc->flags & WPI_FLAG_BUSY) {
2230 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
2234 sc->flags|= WPI_FLAG_BUSY;
2236 KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes",
2239 desc = &ring->desc[ring->cur];
2240 cmd = &ring->cmd[ring->cur];
2244 cmd->qid = ring->qid;
2245 cmd->idx = ring->cur;
2246 memcpy(cmd->data, buf, size);
2248 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
2249 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2250 ring->cur * sizeof (struct wpi_tx_cmd));
2251 desc->segs[0].len = htole32(4 + size);
2254 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2255 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2258 sc->flags &= ~ WPI_FLAG_BUSY;
2262 return lksleep(cmd, &sc->sc_lock, 0, "wpicmd", hz);
2266 wpi_wme_update(struct ieee80211com *ic)
2268 #define WPI_EXP2(v) htole16((1 << (v)) - 1)
2269 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
2270 struct wpi_softc *sc = ic->ic_ifp->if_softc;
2271 const struct wmeParams *wmep;
2272 struct wpi_wme_setup wme;
2275 /* don't override default WME values if WME is not actually enabled */
2276 if (!(ic->ic_flags & IEEE80211_F_WME))
2280 for (ac = 0; ac < WME_NUM_AC; ac++) {
2281 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
2282 wme.ac[ac].aifsn = wmep->wmep_aifsn;
2283 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin);
2284 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax);
2285 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit);
2287 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
2288 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin,
2289 wme.ac[ac].cwmax, wme.ac[ac].txop));
2291 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1);
2297 * Configure h/w multi-rate retries.
2300 wpi_mrr_setup(struct wpi_softc *sc)
2302 struct ifnet *ifp = sc->sc_ifp;
2303 struct ieee80211com *ic = ifp->if_l2com;
2304 struct wpi_mrr_setup mrr;
2307 memset(&mrr, 0, sizeof (struct wpi_mrr_setup));
2309 /* CCK rates (not used with 802.11a) */
2310 for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
2311 mrr.rates[i].flags = 0;
2312 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2313 /* fallback to the immediate lower CCK rate (if any) */
2314 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
2315 /* try one time at this rate before falling back to "next" */
2316 mrr.rates[i].ntries = 1;
2319 /* OFDM rates (not used with 802.11b) */
2320 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
2321 mrr.rates[i].flags = 0;
2322 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2323 /* fallback to the immediate lower OFDM rate (if any) */
2324 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */
2325 mrr.rates[i].next = (i == WPI_OFDM6) ?
2326 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
2327 WPI_OFDM6 : WPI_CCK2) :
2329 /* try one time at this rate before falling back to "next" */
2330 mrr.rates[i].ntries = 1;
2333 /* setup MRR for control frames */
2334 mrr.which = htole32(WPI_MRR_CTL);
2335 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2337 device_printf(sc->sc_dev,
2338 "could not setup MRR for control frames\n");
2342 /* setup MRR for data frames */
2343 mrr.which = htole32(WPI_MRR_DATA);
2344 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2346 device_printf(sc->sc_dev,
2347 "could not setup MRR for data frames\n");
2355 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
2357 struct wpi_cmd_led led;
2360 led.unit = htole32(100000); /* on/off in unit of 100ms */
2364 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
2368 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni)
2370 struct wpi_cmd_tsf tsf;
2373 memset(&tsf, 0, sizeof tsf);
2374 memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8);
2375 tsf.bintval = htole16(ni->ni_intval);
2376 tsf.lintval = htole16(10);
2378 /* compute remaining time until next beacon */
2379 val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */
2380 mod = le64toh(tsf.tstamp) % val;
2381 tsf.binitval = htole32((uint32_t)(val - mod));
2383 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0)
2384 device_printf(sc->sc_dev, "could not enable TSF\n");
2389 * Build a beacon frame that the firmware will broadcast periodically in
2390 * IBSS or HostAP modes.
2393 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
2395 struct ifnet *ifp = sc->sc_ifp;
2396 struct ieee80211com *ic = ifp->if_l2com;
2397 struct wpi_tx_ring *ring = &sc->cmdq;
2398 struct wpi_tx_desc *desc;
2399 struct wpi_tx_data *data;
2400 struct wpi_tx_cmd *cmd;
2401 struct wpi_cmd_beacon *bcn;
2402 struct ieee80211_beacon_offsets bo;
2404 bus_addr_t physaddr;
2407 desc = &ring->desc[ring->cur];
2408 data = &ring->data[ring->cur];
2410 m0 = ieee80211_beacon_alloc(ic, ni, &bo);
2412 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2416 cmd = &ring->cmd[ring->cur];
2417 cmd->code = WPI_CMD_SET_BEACON;
2419 cmd->qid = ring->qid;
2420 cmd->idx = ring->cur;
2422 bcn = (struct wpi_cmd_beacon *)cmd->data;
2423 memset(bcn, 0, sizeof (struct wpi_cmd_beacon));
2424 bcn->id = WPI_ID_BROADCAST;
2425 bcn->ofdm_mask = 0xff;
2426 bcn->cck_mask = 0x0f;
2427 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE);
2428 bcn->len = htole16(m0->m_pkthdr.len);
2429 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2430 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2431 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
2433 /* save and trim IEEE802.11 header */
2434 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh);
2435 m_adj(m0, sizeof (struct ieee80211_frame));
2437 /* assume beacon frame is contiguous */
2438 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *),
2439 m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0);
2441 device_printf(sc->sc_dev, "could not map beacon\n");
2448 /* first scatter/gather segment is used by the beacon command */
2449 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
2450 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2451 ring->cur * sizeof (struct wpi_tx_cmd));
2452 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon));
2453 desc->segs[1].addr = htole32(physaddr);
2454 desc->segs[1].len = htole32(m0->m_pkthdr.len);
2457 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2458 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2465 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
2467 struct ieee80211com *ic = vap->iv_ic;
2468 struct ieee80211_node *ni = vap->iv_bss;
2469 struct wpi_node_info node;
2473 /* update adapter's configuration */
2474 sc->config.associd = 0;
2475 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2476 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2477 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2478 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2479 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2482 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
2483 sc->config.cck_mask = 0;
2484 sc->config.ofdm_mask = 0x15;
2485 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
2486 sc->config.cck_mask = 0x03;
2487 sc->config.ofdm_mask = 0;
2489 /* XXX assume 802.11b/g */
2490 sc->config.cck_mask = 0x0f;
2491 sc->config.ofdm_mask = 0x15;
2494 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan,
2495 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask));
2496 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2497 sizeof (struct wpi_config), 1);
2499 device_printf(sc->sc_dev, "could not configure\n");
2503 /* configuration has changed, set Tx power accordingly */
2504 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) {
2505 device_printf(sc->sc_dev, "could not set Tx power\n");
2509 /* add default node */
2510 memset(&node, 0, sizeof node);
2511 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid);
2512 node.id = WPI_ID_BSS;
2513 node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2514 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2515 node.action = htole32(WPI_ACTION_SET_RATE);
2516 node.antenna = WPI_ANTENNA_BOTH;
2517 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1);
2519 device_printf(sc->sc_dev, "could not add BSS node\n");
2525 wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap)
2527 struct ieee80211com *ic = vap->iv_ic;
2528 struct ieee80211_node *ni = vap->iv_bss;
2531 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
2532 /* link LED blinks while monitoring */
2533 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
2537 wpi_enable_tsf(sc, ni);
2539 /* update adapter's configuration */
2540 sc->config.associd = htole16(ni->ni_associd & ~0xc000);
2541 /* short preamble/slot time are negotiated when associating */
2542 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE |
2544 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2545 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT);
2546 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2547 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE);
2548 sc->config.filter |= htole32(WPI_FILTER_BSS);
2550 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
2552 DPRINTF(("config chan %d flags %x\n", sc->config.chan,
2554 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct
2557 device_printf(sc->sc_dev, "could not update configuration\n");
2561 error = wpi_set_txpower(sc, ni->ni_chan, 1);
2563 device_printf(sc->sc_dev, "could set txpower\n");
2567 /* link LED always on while associated */
2568 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
2570 /* start automatic rate control timer */
2571 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
2577 * Send a scan request to the firmware. Since this command is huge, we map it
2578 * into a mbufcluster instead of using the pre-allocated set of commands. Note,
2579 * much of this code is similar to that in wpi_cmd but because we must manually
2580 * construct the probe & channels, we duplicate what's needed here. XXX In the
2581 * future, this function should be modified to use wpi_cmd to help cleanup the
2585 wpi_scan(struct wpi_softc *sc)
2587 struct ifnet *ifp = sc->sc_ifp;
2588 struct ieee80211com *ic = ifp->if_l2com;
2589 struct ieee80211_scan_state *ss = ic->ic_scan;
2590 struct wpi_tx_ring *ring = &sc->cmdq;
2591 struct wpi_tx_desc *desc;
2592 struct wpi_tx_data *data;
2593 struct wpi_tx_cmd *cmd;
2594 struct wpi_scan_hdr *hdr;
2595 struct wpi_scan_chan *chan;
2596 struct ieee80211_frame *wh;
2597 struct ieee80211_rateset *rs;
2598 struct ieee80211_channel *c;
2599 enum ieee80211_phymode mode;
2601 int nrates, pktlen, error, i, nssid;
2602 bus_addr_t physaddr;
2604 desc = &ring->desc[ring->cur];
2605 data = &ring->data[ring->cur];
2607 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
2608 if (data->m == NULL) {
2609 device_printf(sc->sc_dev,
2610 "could not allocate mbuf for scan command\n");
2614 cmd = mtod(data->m, struct wpi_tx_cmd *);
2615 cmd->code = WPI_CMD_SCAN;
2617 cmd->qid = ring->qid;
2618 cmd->idx = ring->cur;
2620 hdr = (struct wpi_scan_hdr *)cmd->data;
2621 memset(hdr, 0, sizeof(struct wpi_scan_hdr));
2624 * Move to the next channel if no packets are received within 5 msecs
2625 * after sending the probe request (this helps to reduce the duration
2628 hdr->quiet = htole16(5);
2629 hdr->threshold = htole16(1);
2631 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
2632 /* send probe requests at 6Mbps */
2633 hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6];
2635 /* Enable crc checking */
2636 hdr->promotion = htole16(1);
2638 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO);
2639 /* send probe requests at 1Mbps */
2640 hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1];
2642 hdr->tx.id = WPI_ID_BROADCAST;
2643 hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE);
2644 hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ);
2646 memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids));
2647 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
2648 for (i = 0; i < nssid; i++) {
2649 hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID;
2650 hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32);
2651 memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid,
2652 hdr->scan_essids[i].esslen);
2654 if (wpi_debug & WPI_DEBUG_SCANNING) {
2655 kprintf("Scanning Essid: ");
2656 ieee80211_print_essid(hdr->scan_essids[i].essid,
2657 hdr->scan_essids[i].esslen);
2664 * Build a probe request frame. Most of the following code is a
2665 * copy & paste of what is done in net80211.
2667 wh = (struct ieee80211_frame *)&hdr->scan_essids[4];
2668 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2669 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2670 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
2671 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
2672 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
2673 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
2674 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
2675 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
2677 frm = (uint8_t *)(wh + 1);
2679 /* add essid IE, the hardware will fill this in for us */
2680 *frm++ = IEEE80211_ELEMID_SSID;
2683 mode = ieee80211_chan2mode(ic->ic_curchan);
2684 rs = &ic->ic_sup_rates[mode];
2686 /* add supported rates IE */
2687 *frm++ = IEEE80211_ELEMID_RATES;
2688 nrates = rs->rs_nrates;
2689 if (nrates > IEEE80211_RATE_SIZE)
2690 nrates = IEEE80211_RATE_SIZE;
2692 memcpy(frm, rs->rs_rates, nrates);
2695 /* add supported xrates IE */
2696 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
2697 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
2698 *frm++ = IEEE80211_ELEMID_XRATES;
2700 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
2704 /* setup length of probe request */
2705 hdr->tx.len = htole16(frm - (uint8_t *)wh);
2708 * Construct information about the channel that we
2709 * want to scan. The firmware expects this to be directly
2710 * after the scan probe request
2713 chan = (struct wpi_scan_chan *)frm;
2714 chan->chan = ieee80211_chan2ieee(ic, c);
2716 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2717 chan->flags |= WPI_CHAN_ACTIVE;
2719 chan->flags |= WPI_CHAN_DIRECT;
2721 chan->gain_dsp = 0x6e; /* Default level */
2722 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2723 chan->active = htole16(10);
2724 chan->passive = htole16(ss->ss_maxdwell);
2725 chan->gain_radio = 0x3b;
2727 chan->active = htole16(20);
2728 chan->passive = htole16(ss->ss_maxdwell);
2729 chan->gain_radio = 0x28;
2732 DPRINTFN(WPI_DEBUG_SCANNING,
2733 ("Scanning %u Passive: %d\n",
2735 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2740 frm += sizeof (struct wpi_scan_chan);
2742 // XXX All Channels....
2743 for (c = &ic->ic_channels[1];
2744 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) {
2745 if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags)
2748 chan->chan = ieee80211_chan2ieee(ic, c);
2750 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2751 chan->flags |= WPI_CHAN_ACTIVE;
2752 if (ic->ic_des_ssid[0].len != 0)
2753 chan->flags |= WPI_CHAN_DIRECT;
2755 chan->gain_dsp = 0x6e; /* Default level */
2756 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2757 chan->active = htole16(10);
2758 chan->passive = htole16(110);
2759 chan->gain_radio = 0x3b;
2761 chan->active = htole16(20);
2762 chan->passive = htole16(120);
2763 chan->gain_radio = 0x28;
2766 DPRINTFN(WPI_DEBUG_SCANNING,
2767 ("Scanning %u Passive: %d\n",
2769 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2774 frm += sizeof (struct wpi_scan_chan);
2778 hdr->len = htole16(frm - (uint8_t *)hdr);
2779 pktlen = frm - (uint8_t *)cmd;
2781 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen,
2782 wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT);
2784 device_printf(sc->sc_dev, "could not map scan command\n");
2790 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);
2791 desc->segs[0].addr = htole32(physaddr);
2792 desc->segs[0].len = htole32(pktlen);
2794 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2795 BUS_DMASYNC_PREWRITE);
2796 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2799 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2800 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2802 sc->sc_scan_timer = 5;
2803 return 0; /* will be notified async. of failure/success */
2807 * Configure the card to listen to a particular channel, this transisions the
2808 * card in to being able to receive frames from remote devices.
2811 wpi_config(struct wpi_softc *sc)
2813 struct ifnet *ifp = sc->sc_ifp;
2814 struct ieee80211com *ic = ifp->if_l2com;
2815 struct wpi_power power;
2816 struct wpi_bluetooth bluetooth;
2817 struct wpi_node_info node;
2820 /* set power mode */
2821 memset(&power, 0, sizeof power);
2822 power.flags = htole32(WPI_POWER_CAM|0x8);
2823 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2825 device_printf(sc->sc_dev, "could not set power mode\n");
2829 /* configure bluetooth coexistence */
2830 memset(&bluetooth, 0, sizeof bluetooth);
2831 bluetooth.flags = 3;
2832 bluetooth.lead = 0xaa;
2834 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth,
2837 device_printf(sc->sc_dev,
2838 "could not configure bluetooth coexistence\n");
2842 /* configure adapter */
2843 memset(&sc->config, 0, sizeof (struct wpi_config));
2844 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp));
2845 /*set default channel*/
2846 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan));
2847 sc->config.flags = htole32(WPI_CONFIG_TSF);
2848 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2849 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2852 sc->config.filter = 0;
2853 switch (ic->ic_opmode) {
2854 case IEEE80211_M_STA:
2855 case IEEE80211_M_WDS: /* No know setup, use STA for now */
2856 sc->config.mode = WPI_MODE_STA;
2857 sc->config.filter |= htole32(WPI_FILTER_MULTICAST);
2859 case IEEE80211_M_IBSS:
2860 case IEEE80211_M_AHDEMO:
2861 sc->config.mode = WPI_MODE_IBSS;
2862 sc->config.filter |= htole32(WPI_FILTER_BEACON |
2863 WPI_FILTER_MULTICAST);
2865 case IEEE80211_M_HOSTAP:
2866 sc->config.mode = WPI_MODE_HOSTAP;
2868 case IEEE80211_M_MONITOR:
2869 sc->config.mode = WPI_MODE_MONITOR;
2870 sc->config.filter |= htole32(WPI_FILTER_MULTICAST |
2871 WPI_FILTER_CTL | WPI_FILTER_PROMISC);
2874 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2877 sc->config.cck_mask = 0x0f; /* not yet negotiated */
2878 sc->config.ofdm_mask = 0xff; /* not yet negotiated */
2879 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2880 sizeof (struct wpi_config), 0);
2882 device_printf(sc->sc_dev, "configure command failed\n");
2886 /* configuration has changed, set Tx power accordingly */
2887 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) {
2888 device_printf(sc->sc_dev, "could not set Tx power\n");
2892 /* add broadcast node */
2893 memset(&node, 0, sizeof node);
2894 IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr);
2895 node.id = WPI_ID_BROADCAST;
2896 node.rate = wpi_plcp_signal(2);
2897 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0);
2899 device_printf(sc->sc_dev, "could not add broadcast node\n");
2903 /* Setup rate scalling */
2904 error = wpi_mrr_setup(sc);
2906 device_printf(sc->sc_dev, "could not setup MRR\n");
2914 wpi_stop_master(struct wpi_softc *sc)
2919 DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n"));
2921 tmp = WPI_READ(sc, WPI_RESET);
2922 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET);
2924 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2925 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
2926 return; /* already asleep */
2928 for (ntries = 0; ntries < 100; ntries++) {
2929 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
2933 if (ntries == 100) {
2934 device_printf(sc->sc_dev, "timeout waiting for master\n");
2939 wpi_power_up(struct wpi_softc *sc)
2945 tmp = wpi_mem_read(sc, WPI_MEM_POWER);
2946 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
2949 for (ntries = 0; ntries < 5000; ntries++) {
2950 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
2954 if (ntries == 5000) {
2955 device_printf(sc->sc_dev,
2956 "timeout waiting for NIC to power up\n");
2963 wpi_reset(struct wpi_softc *sc)
2968 DPRINTFN(WPI_DEBUG_HW,
2969 ("Resetting the card - clearing any uploaded firmware\n"));
2971 /* clear any pending interrupts */
2972 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
2974 tmp = WPI_READ(sc, WPI_PLL_CTL);
2975 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
2977 tmp = WPI_READ(sc, WPI_CHICKEN);
2978 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
2980 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2981 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
2983 /* wait for clock stabilization */
2984 for (ntries = 0; ntries < 25000; ntries++) {
2985 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
2989 if (ntries == 25000) {
2990 device_printf(sc->sc_dev,
2991 "timeout waiting for clock stabilization\n");
2995 /* initialize EEPROM */
2996 tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
2998 if ((tmp & WPI_EEPROM_VERSION) == 0) {
2999 device_printf(sc->sc_dev, "EEPROM not found\n");
3002 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
3008 wpi_hw_config(struct wpi_softc *sc)
3012 /* voodoo from the Linux "driver".. */
3013 hw = WPI_READ(sc, WPI_HWCONFIG);
3015 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
3016 if ((rev & 0xc0) == 0x40)
3017 hw |= WPI_HW_ALM_MB;
3018 else if (!(rev & 0x80))
3019 hw |= WPI_HW_ALM_MM;
3021 if (sc->cap == 0x80)
3022 hw |= WPI_HW_SKU_MRC;
3024 hw &= ~WPI_HW_REV_D;
3025 if ((le16toh(sc->rev) & 0xf0) == 0xd0)
3029 hw |= WPI_HW_TYPE_B;
3031 WPI_WRITE(sc, WPI_HWCONFIG, hw);
3035 wpi_rfkill_resume(struct wpi_softc *sc)
3037 struct ifnet *ifp = sc->sc_ifp;
3038 struct ieee80211com *ic = ifp->if_l2com;
3039 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3042 /* enable firmware again */
3043 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3044 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3046 /* wait for thermal sensors to calibrate */
3047 for (ntries = 0; ntries < 1000; ntries++) {
3048 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3053 if (ntries == 1000) {
3054 device_printf(sc->sc_dev,
3055 "timeout waiting for thermal calibration\n");
3059 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3061 if (wpi_config(sc) != 0) {
3062 device_printf(sc->sc_dev, "device config failed\n");
3067 ifp->if_flags &= ~IFF_OACTIVE;
3068 ifp->if_flags |= IFF_RUNNING;
3069 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3072 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3073 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
3074 ieee80211_beacon_miss(ic);
3075 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
3077 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
3079 ieee80211_scan_next(vap);
3080 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3084 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3088 wpi_init_locked(struct wpi_softc *sc, int force)
3090 struct ifnet *ifp = sc->sc_ifp;
3094 wpi_stop_locked(sc);
3095 (void)wpi_reset(sc);
3098 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
3100 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
3101 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
3104 (void)wpi_power_up(sc);
3109 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr);
3110 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr +
3111 offsetof(struct wpi_shared, next));
3112 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7);
3113 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
3118 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
3119 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
3120 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
3121 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
3122 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
3123 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
3124 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
3126 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr);
3127 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
3129 for (qid = 0; qid < 6; qid++) {
3130 WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
3131 WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
3132 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
3136 /* clear "radio off" and "disable command" bits (reversed logic) */
3137 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3138 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3139 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3141 /* clear any pending interrupts */
3142 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
3144 /* enable interrupts */
3145 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
3147 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3148 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3150 if ((wpi_load_firmware(sc)) != 0) {
3151 device_printf(sc->sc_dev,
3152 "A problem occurred loading the firmware to the driver\n");
3156 /* At this point the firmware is up and running. If the hardware
3157 * RF switch is turned off thermal calibration will fail, though
3158 * the card is still happy to continue to accept commands, catch
3159 * this case and schedule a task to watch for it to be turned on.
3162 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3166 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
3167 device_printf(sc->sc_dev,"Radio Transmitter is switched off\n");
3171 /* wait for thermal sensors to calibrate */
3172 for (ntries = 0; ntries < 1000; ntries++) {
3173 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3178 if (ntries == 1000) {
3179 device_printf(sc->sc_dev,
3180 "timeout waiting for thermal sensors calibration\n");
3183 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3185 if (wpi_config(sc) != 0) {
3186 device_printf(sc->sc_dev, "device config failed\n");
3190 ifp->if_flags &= ~IFF_OACTIVE;
3191 ifp->if_flags |= IFF_RUNNING;
3193 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3199 struct wpi_softc *sc = arg;
3200 struct ifnet *ifp = sc->sc_ifp;
3201 struct ieee80211com *ic = ifp->if_l2com;
3204 wpi_init_locked(sc, 0);
3207 if (ifp->if_flags & IFF_RUNNING)
3208 ieee80211_start_all(ic); /* start all vaps */
3212 wpi_stop_locked(struct wpi_softc *sc)
3214 struct ifnet *ifp = sc->sc_ifp;
3218 sc->sc_tx_timer = 0;
3219 sc->sc_scan_timer = 0;
3220 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3221 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3222 callout_stop(&sc->watchdog_to);
3223 callout_stop(&sc->calib_to);
3226 /* disable interrupts */
3227 WPI_WRITE(sc, WPI_MASK, 0);
3228 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
3229 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
3230 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
3233 wpi_mem_write(sc, WPI_MEM_MODE, 0);
3236 /* reset all Tx rings */
3237 for (ac = 0; ac < 4; ac++)
3238 wpi_reset_tx_ring(sc, &sc->txq[ac]);
3239 wpi_reset_tx_ring(sc, &sc->cmdq);
3242 wpi_reset_rx_ring(sc, &sc->rxq);
3245 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
3250 wpi_stop_master(sc);
3252 tmp = WPI_READ(sc, WPI_RESET);
3253 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
3254 sc->flags &= ~WPI_FLAG_BUSY;
3258 wpi_stop(struct wpi_softc *sc)
3261 wpi_stop_locked(sc);
3266 wpi_newassoc(struct ieee80211_node *ni, int isnew)
3269 ieee80211_ratectl_node_init(ni);
3273 wpi_calib_timeout(void *arg)
3275 struct wpi_softc *sc = arg;
3276 struct ifnet *ifp = sc->sc_ifp;
3277 struct ieee80211com *ic = ifp->if_l2com;
3278 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3281 if (vap->iv_state != IEEE80211_S_RUN)
3284 /* update sensor data */
3285 temp = (int)WPI_READ(sc, WPI_TEMPERATURE);
3286 DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp));
3288 wpi_power_calibration(sc, temp);
3290 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
3294 * This function is called periodically (every 60 seconds) to adjust output
3295 * power to temperature changes.
3298 wpi_power_calibration(struct wpi_softc *sc, int temp)
3300 struct ifnet *ifp = sc->sc_ifp;
3301 struct ieee80211com *ic = ifp->if_l2com;
3302 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3304 /* sanity-check read value */
3305 if (temp < -260 || temp > 25) {
3306 /* this can't be correct, ignore */
3307 DPRINTFN(WPI_DEBUG_TEMP,
3308 ("out-of-range temperature reported: %d\n", temp));
3312 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp));
3314 /* adjust Tx power if need be */
3315 if (abs(temp - sc->temp) <= 6)
3320 if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) {
3321 /* just warn, too bad for the automatic calibration... */
3322 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3327 * Read the eeprom to find out what channels are valid for the given
3328 * band and update net80211 with what we find.
3331 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
3333 struct ifnet *ifp = sc->sc_ifp;
3334 struct ieee80211com *ic = ifp->if_l2com;
3335 const struct wpi_chan_band *band = &wpi_bands[n];
3336 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND];
3337 struct ieee80211_channel *c;
3338 int chan, i, passive;
3340 wpi_read_prom_data(sc, band->addr, channels,
3341 band->nchan * sizeof (struct wpi_eeprom_chan));
3343 for (i = 0; i < band->nchan; i++) {
3344 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
3345 DPRINTFN(WPI_DEBUG_HW,
3346 ("Channel Not Valid: %d, band %d\n",
3352 chan = band->chan[i];
3353 c = &ic->ic_channels[ic->ic_nchans++];
3355 /* is active scan allowed on this channel? */
3356 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) {
3357 passive = IEEE80211_CHAN_PASSIVE;
3360 if (n == 0) { /* 2GHz band */
3362 c->ic_freq = ieee80211_ieee2mhz(chan,
3363 IEEE80211_CHAN_2GHZ);
3364 c->ic_flags = IEEE80211_CHAN_B | passive;
3366 c = &ic->ic_channels[ic->ic_nchans++];
3368 c->ic_freq = ieee80211_ieee2mhz(chan,
3369 IEEE80211_CHAN_2GHZ);
3370 c->ic_flags = IEEE80211_CHAN_G | passive;
3372 } else { /* 5GHz band */
3374 * Some 3945ABG adapters support channels 7, 8, 11
3375 * and 12 in the 2GHz *and* 5GHz bands.
3376 * Because of limitations in our net80211(9) stack,
3377 * we can't support these channels in 5GHz band.
3378 * XXX not true; just need to map to proper frequency
3384 c->ic_freq = ieee80211_ieee2mhz(chan,
3385 IEEE80211_CHAN_5GHZ);
3386 c->ic_flags = IEEE80211_CHAN_A | passive;
3389 /* save maximum allowed power for this channel */
3390 sc->maxpwr[chan] = channels[i].maxpwr;
3393 // XXX We can probably use this an get rid of maxpwr - ben 20070617
3394 ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr;
3395 //ic->ic_channels[chan].ic_minpower...
3396 //ic->ic_channels[chan].ic_maxregtxpower...
3399 DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d"
3400 " passive=%d, offset %d\n", chan, c->ic_freq,
3401 channels[i].flags, sc->maxpwr[chan],
3402 (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0,
3408 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
3410 struct wpi_power_group *group = &sc->groups[n];
3411 struct wpi_eeprom_group rgroup;
3414 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup,
3417 /* save power group information */
3418 group->chan = rgroup.chan;
3419 group->maxpwr = rgroup.maxpwr;
3420 /* temperature at which the samples were taken */
3421 group->temp = (int16_t)le16toh(rgroup.temp);
3423 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3424 group->chan, group->maxpwr, group->temp));
3426 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
3427 group->samples[i].index = rgroup.samples[i].index;
3428 group->samples[i].power = rgroup.samples[i].power;
3430 DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3431 group->samples[i].index, group->samples[i].power));
3436 * Update Tx power to match what is defined for channel `c'.
3439 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async)
3441 struct ifnet *ifp = sc->sc_ifp;
3442 struct ieee80211com *ic = ifp->if_l2com;
3443 struct wpi_power_group *group;
3444 struct wpi_cmd_txpower txpower;
3448 /* get channel number */
3449 chan = ieee80211_chan2ieee(ic, c);
3451 /* find the power group to which this channel belongs */
3452 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3453 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3454 if (chan <= group->chan)
3457 group = &sc->groups[0];
3459 memset(&txpower, 0, sizeof txpower);
3460 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1;
3461 txpower.channel = htole16(chan);
3463 /* set Tx power for all OFDM and CCK rates */
3464 for (i = 0; i <= 11 ; i++) {
3465 /* retrieve Tx power for this channel/rate combination */
3466 int idx = wpi_get_power_index(sc, group, c,
3467 wpi_ridx_to_rate[i]);
3469 txpower.rates[i].rate = wpi_ridx_to_plcp[i];
3471 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3472 txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx];
3473 txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx];
3475 txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx];
3476 txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx];
3478 DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3479 chan, wpi_ridx_to_rate[i], idx));
3482 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async);
3486 * Determine Tx power index for a given channel/rate combination.
3487 * This takes into account the regulatory information from EEPROM and the
3488 * current temperature.
3491 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3492 struct ieee80211_channel *c, int rate)
3494 /* fixed-point arithmetic division using a n-bit fractional part */
3495 #define fdivround(a, b, n) \
3496 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3498 /* linear interpolation */
3499 #define interpolate(x, x1, y1, x2, y2, n) \
3500 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3502 struct ifnet *ifp = sc->sc_ifp;
3503 struct ieee80211com *ic = ifp->if_l2com;
3504 struct wpi_power_sample *sample;
3508 /* get channel number */
3509 chan = ieee80211_chan2ieee(ic, c);
3511 /* default power is group's maximum power - 3dB */
3512 pwr = group->maxpwr / 2;
3514 /* decrease power for highest OFDM rates to reduce distortion */
3516 case 72: /* 36Mb/s */
3517 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5;
3519 case 96: /* 48Mb/s */
3520 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3522 case 108: /* 54Mb/s */
3523 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3527 /* never exceed channel's maximum allowed Tx power */
3528 pwr = min(pwr, sc->maxpwr[chan]);
3530 /* retrieve power index into gain tables from samples */
3531 for (sample = group->samples; sample < &group->samples[3]; sample++)
3532 if (pwr > sample[1].power)
3534 /* fixed-point linear interpolation using a 19-bit fractional part */
3535 idx = interpolate(pwr, sample[0].power, sample[0].index,
3536 sample[1].power, sample[1].index, 19);
3539 * Adjust power index based on current temperature
3540 * - if colder than factory-calibrated: decreate output power
3541 * - if warmer than factory-calibrated: increase output power
3543 idx -= (sc->temp - group->temp) * 11 / 100;
3545 /* decrease power for CCK rates (-5dB) */
3546 if (!WPI_RATE_IS_OFDM(rate))
3549 /* keep power index in a valid range */
3552 if (idx > WPI_MAX_PWR_INDEX)
3553 return WPI_MAX_PWR_INDEX;
3561 * Called by net80211 framework to indicate that a scan
3562 * is starting. This function doesn't actually do the scan,
3563 * wpi_scan_curchan starts things off. This function is more
3564 * of an early warning from the framework we should get ready
3568 wpi_scan_start(struct ieee80211com *ic)
3570 struct ifnet *ifp = ic->ic_ifp;
3571 struct wpi_softc *sc = ifp->if_softc;
3574 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3579 * Called by the net80211 framework, indicates that the
3580 * scan has ended. If there is a scan in progress on the card
3581 * then it should be aborted.
3584 wpi_scan_end(struct ieee80211com *ic)
3590 * Called by the net80211 framework to indicate to the driver
3591 * that the channel should be changed
3594 wpi_set_channel(struct ieee80211com *ic)
3596 struct ifnet *ifp = ic->ic_ifp;
3597 struct wpi_softc *sc = ifp->if_softc;
3601 * Only need to set the channel in Monitor mode. AP scanning and auth
3602 * are already taken care of by their respective firmware commands.
3604 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
3605 error = wpi_config(sc);
3607 device_printf(sc->sc_dev,
3608 "error %d settting channel\n", error);
3613 * Called by net80211 to indicate that we need to scan the current
3614 * channel. The channel is previously be set via the wpi_set_channel
3618 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3620 struct ieee80211vap *vap = ss->ss_vap;
3621 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3622 struct wpi_softc *sc = ifp->if_softc;
3626 ieee80211_cancel_scan(vap);
3631 * Called by the net80211 framework to indicate
3632 * the minimum dwell time has been met, terminate the scan.
3633 * We don't actually terminate the scan as the firmware will notify
3634 * us when it's finished and we have no way to interrupt it.
3637 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
3639 /* NB: don't try to abort scan; wait for firmware to finish */
3643 wpi_hwreset(void *arg, int pending)
3645 struct wpi_softc *sc = arg;
3648 wpi_init_locked(sc, 0);
3653 wpi_rfreset(void *arg, int pending)
3655 struct wpi_softc *sc = arg;
3658 wpi_rfkill_resume(sc);
3663 * Allocate DMA-safe memory for firmware transfer.
3666 wpi_alloc_fwmem(struct wpi_softc *sc)
3668 /* allocate enough contiguous space to store text and data */
3669 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
3670 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1,
3675 wpi_free_fwmem(struct wpi_softc *sc)
3677 wpi_dma_contig_free(&sc->fw_dma);
3681 * Called every second, wpi_watchdog used by the watch dog timer
3682 * to check that the card is still alive
3685 wpi_watchdog(void *arg)
3687 struct wpi_softc *sc = arg;
3688 struct ifnet *ifp = sc->sc_ifp;
3689 struct ieee80211com *ic = ifp->if_l2com;
3692 DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n"));
3694 if (sc->flags & WPI_FLAG_HW_RADIO_OFF) {
3695 /* No need to lock firmware memory */
3696 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3698 if ((tmp & 0x1) == 0) {
3699 /* Radio kill switch is still off */
3700 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3704 device_printf(sc->sc_dev, "Hardware Switch Enabled\n");
3705 ieee80211_runtask(ic, &sc->sc_radiotask);
3709 if (sc->sc_tx_timer > 0) {
3710 if (--sc->sc_tx_timer == 0) {
3711 device_printf(sc->sc_dev,"device timeout\n");
3713 ieee80211_runtask(ic, &sc->sc_restarttask);
3716 if (sc->sc_scan_timer > 0) {
3717 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3718 if (--sc->sc_scan_timer == 0 && vap != NULL) {
3719 device_printf(sc->sc_dev,"scan timeout\n");
3720 ieee80211_cancel_scan(vap);
3721 ieee80211_runtask(ic, &sc->sc_restarttask);
3725 if (ifp->if_flags & IFF_RUNNING)
3726 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3730 static const char *wpi_cmd_str(int cmd)
3733 case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD";
3734 case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE";
3735 case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE";
3736 case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME";
3737 case WPI_CMD_TSF: return "WPI_CMD_TSF";
3738 case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE";
3739 case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA";
3740 case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP";
3741 case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED";
3742 case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE";
3743 case WPI_CMD_SCAN: return "WPI_CMD_SCAN";
3744 case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON";
3745 case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER";
3746 case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH";
3749 KASSERT(1, ("Unknown Command: %d\n", cmd));
3750 return "UNKNOWN CMD"; /* Make the compiler happy */
3755 MODULE_DEPEND(wpi, pci, 1, 1, 1);
3756 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3757 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
3758 MODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1);
3760 MODULE_DEPEND(wpi, wpifw_fw_fw, 1, 1, 1);
3761 MODULE_DEPEND(wpi, ath_rate, 1, 1, 1);