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.
18 * $FreeBSD: src/sys/dev/wpi/if_wpi.c,v 1.27.2.2 2010/02/14 09:34:27 gavin Exp $
21 #define VERSION "20071127"
24 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
26 * The 3945ABG network adapter doesn't use traditional hardware as
27 * many other adaptors do. Instead at run time the eeprom is set into a known
28 * state and told to load boot firmware. The boot firmware loads an init and a
29 * main binary firmware image into SRAM on the card via DMA.
30 * Once the firmware is loaded, the driver/hw then
31 * communicate by way of circular dma rings via the the SRAM to the firmware.
33 * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings.
34 * The 4 tx data rings allow for prioritization QoS.
36 * The rx data ring consists of 32 dma buffers. Two registers are used to
37 * indicate where in the ring the driver and the firmware are up to. The
38 * driver sets the initial read index (reg1) and the initial write index (reg2),
39 * the firmware updates the read index (reg1) on rx of a packet and fires an
40 * interrupt. The driver then processes the buffers starting at reg1 indicating
41 * to the firmware which buffers have been accessed by updating reg2. At the
42 * same time allocating new memory for the processed buffer.
44 * A similar thing happens with the tx rings. The difference is the firmware
45 * stop processing buffers once the queue is full and until confirmation
46 * of a successful transmition (tx_intr) has occurred.
48 * The command ring operates in the same manner as the tx queues.
50 * All communication direct to the card (ie eeprom) is classed as Stage1
53 * All communication via the firmware to the card is classed as State2.
54 * The firmware consists of 2 parts. A bootstrap firmware and a runtime
55 * firmware. The bootstrap firmware and runtime firmware are loaded
56 * from host memory via dma to the card then told to execute. From this point
57 * on the majority of communications between the driver and the card goes
61 #include <sys/param.h>
62 #include <sys/sysctl.h>
63 #include <sys/sockio.h>
65 #include <sys/kernel.h>
66 #include <sys/socket.h>
67 #include <sys/systm.h>
68 #include <sys/malloc.h>
69 #include <sys/queue.h>
70 #include <sys/taskqueue.h>
71 #include <sys/module.h>
73 #include <sys/endian.h>
74 #include <sys/linker.h>
75 #include <sys/firmware.h>
78 #include <sys/resource.h>
81 #include <bus/pci/pcireg.h>
82 #include <bus/pci/pcivar.h>
86 #include <net/if_arp.h>
87 #include <net/ifq_var.h>
88 #include <net/ethernet.h>
89 #include <net/if_dl.h>
90 #include <net/if_media.h>
91 #include <net/if_types.h>
93 #include <netproto/802_11/ieee80211_var.h>
94 #include <netproto/802_11/ieee80211_radiotap.h>
95 #include <netproto/802_11/ieee80211_regdomain.h>
96 #include <netproto/802_11/ieee80211_ratectl.h>
98 #include <netinet/in.h>
99 #include <netinet/in_systm.h>
100 #include <netinet/in_var.h>
101 #include <netinet/ip.h>
102 #include <netinet/if_ether.h>
104 /* XXX: move elsewhere */
105 #define abs(x) (((x) < 0) ? -(x) : (x))
107 #include "if_wpireg.h"
108 #include "if_wpivar.h"
113 #define DPRINTF(x) do { if (wpi_debug != 0) kprintf x; } while (0)
114 #define DPRINTFN(n, x) do { if (wpi_debug & n) kprintf x; } while (0)
115 #define WPI_DEBUG_SET (wpi_debug != 0)
118 WPI_DEBUG_UNUSED = 0x00000001, /* Unused */
119 WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */
120 WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/
121 WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */
122 WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/
123 WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */
124 WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */
125 WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */
126 WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */
127 WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */
128 WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */
129 WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */
130 WPI_DEBUG_ANY = 0xffffffff
133 static int wpi_debug = 1;
134 SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level");
135 TUNABLE_INT("debug.wpi", &wpi_debug);
139 #define DPRINTFN(n, x)
140 #define WPI_DEBUG_SET 0
150 static const struct wpi_ident wpi_ident_table[] = {
151 /* The below entries support ABG regardless of the subid */
152 { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
153 { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" },
154 /* The below entries only support BG */
155 { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" },
156 { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" },
157 { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" },
158 { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" },
162 static struct ieee80211vap *wpi_vap_create(struct ieee80211com *,
163 const char name[IFNAMSIZ], int unit, int opmode,
164 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
165 const uint8_t mac[IEEE80211_ADDR_LEN]);
166 static void wpi_vap_delete(struct ieee80211vap *);
167 static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *,
168 void **, bus_size_t, bus_size_t, int);
169 static void wpi_dma_contig_free(struct wpi_dma_info *);
170 static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int);
171 static int wpi_alloc_shared(struct wpi_softc *);
172 static void wpi_free_shared(struct wpi_softc *);
173 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
174 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
175 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
176 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
178 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
179 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
180 static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
181 const uint8_t mac[IEEE80211_ADDR_LEN]);
182 static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
183 static void wpi_mem_lock(struct wpi_softc *);
184 static void wpi_mem_unlock(struct wpi_softc *);
185 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
186 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
187 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
188 const uint32_t *, int);
189 static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);
190 static int wpi_alloc_fwmem(struct wpi_softc *);
191 static void wpi_free_fwmem(struct wpi_softc *);
192 static int wpi_load_firmware(struct wpi_softc *);
193 static void wpi_unload_firmware(struct wpi_softc *);
194 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int);
195 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *,
196 struct wpi_rx_data *);
197 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *);
198 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *);
199 static void wpi_notif_intr(struct wpi_softc *);
200 static void wpi_intr(void *);
201 static uint8_t wpi_plcp_signal(int);
202 static void wpi_watchdog(void *);
203 static int wpi_tx_data(struct wpi_softc *, struct mbuf *,
204 struct ieee80211_node *, int);
205 static void wpi_start(struct ifnet *);
206 static void wpi_start_locked(struct ifnet *);
207 static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *,
208 const struct ieee80211_bpf_params *);
209 static void wpi_scan_start(struct ieee80211com *);
210 static void wpi_scan_end(struct ieee80211com *);
211 static void wpi_set_channel(struct ieee80211com *);
212 static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long);
213 static void wpi_scan_mindwell(struct ieee80211_scan_state *);
214 static int wpi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
215 static void wpi_read_eeprom(struct wpi_softc *,
216 uint8_t macaddr[IEEE80211_ADDR_LEN]);
217 static void wpi_read_eeprom_channels(struct wpi_softc *, int);
218 static void wpi_read_eeprom_group(struct wpi_softc *, int);
219 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int);
220 static int wpi_wme_update(struct ieee80211com *);
221 static int wpi_mrr_setup(struct wpi_softc *);
222 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t);
223 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *);
225 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *);
227 static int wpi_auth(struct wpi_softc *, struct ieee80211vap *);
228 static int wpi_run(struct wpi_softc *, struct ieee80211vap *);
229 static int wpi_scan(struct wpi_softc *);
230 static int wpi_config(struct wpi_softc *);
231 static void wpi_stop_master(struct wpi_softc *);
232 static int wpi_power_up(struct wpi_softc *);
233 static int wpi_reset(struct wpi_softc *);
234 static void wpi_hwreset(void *, int);
235 static void wpi_rfreset(void *, int);
236 static void wpi_hw_config(struct wpi_softc *);
237 static void wpi_init(void *);
238 static void wpi_init_locked(struct wpi_softc *, int);
239 static void wpi_stop(struct wpi_softc *);
240 static void wpi_stop_locked(struct wpi_softc *);
242 static void wpi_newassoc(struct ieee80211_node *, int);
243 static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
245 static void wpi_calib_timeout(void *);
246 static void wpi_power_calibration(struct wpi_softc *, int);
247 static int wpi_get_power_index(struct wpi_softc *,
248 struct wpi_power_group *, struct ieee80211_channel *, int);
250 static const char *wpi_cmd_str(int);
252 static int wpi_probe(device_t);
253 static int wpi_attach(device_t);
254 static int wpi_detach(device_t);
255 static int wpi_shutdown(device_t);
256 static int wpi_suspend(device_t);
257 static int wpi_resume(device_t);
260 static device_method_t wpi_methods[] = {
261 /* Device interface */
262 DEVMETHOD(device_probe, wpi_probe),
263 DEVMETHOD(device_attach, wpi_attach),
264 DEVMETHOD(device_detach, wpi_detach),
265 DEVMETHOD(device_shutdown, wpi_shutdown),
266 DEVMETHOD(device_suspend, wpi_suspend),
267 DEVMETHOD(device_resume, wpi_resume),
272 static driver_t wpi_driver = {
275 sizeof (struct wpi_softc)
278 static devclass_t wpi_devclass;
280 DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, 0, 0);
282 static const uint8_t wpi_ridx_to_plcp[] = {
283 /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */
284 /* R1-R4 (ral/ural is R4-R1) */
285 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3,
286 /* CCK: device-dependent */
289 static const uint8_t wpi_ridx_to_rate[] = {
290 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */
291 2, 4, 11, 22 /*CCK */
296 wpi_probe(device_t dev)
298 const struct wpi_ident *ident;
300 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
301 if (pci_get_vendor(dev) == ident->vendor &&
302 pci_get_device(dev) == ident->device) {
303 device_set_desc(dev, ident->name);
311 * Load the firmare image from disk to the allocated dma buffer.
312 * we also maintain the reference to the firmware pointer as there
313 * is times where we may need to reload the firmware but we are not
314 * in a context that can access the filesystem (ie taskq cause by restart)
316 * @return 0 on success, an errno on failure
319 wpi_load_firmware(struct wpi_softc *sc)
321 const struct firmware *fp;
322 struct wpi_dma_info *dma = &sc->fw_dma;
323 const struct wpi_firmware_hdr *hdr;
327 const uint8_t *itext, *idata, *rtext, *rdata, *btext;
328 uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz;
334 DPRINTFN(WPI_DEBUG_FIRMWARE,
335 ("Attempting Loading Firmware from wpi_fw module\n"));
340 lwkt_serialize_exit(ifp->if_serializer);
344 if ((img = firmware_image_load("", dma->tag)) == NULL) {
346 lwkt_serialize_enter(ifp->if_serializer);
352 if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) {
353 device_printf(sc->sc_dev,
354 "could not load firmware image 'wpifw_fw'\n");
358 lwkt_serialize_enter(ifp->if_serializer);
366 lwkt_serialize_enter(ifp->if_serializer);
371 /* Validate the firmware is minimum a particular version */
372 if (fp->version < WPI_FW_MINVERSION) {
373 device_printf(sc->sc_dev,
374 "firmware version is too old. Need %d, got %d\n",
383 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) {
384 device_printf(sc->sc_dev,
385 "firmware file too short: %zu bytes\n", fp->datasize);
390 hdr = (const struct wpi_firmware_hdr *)fp->data;
392 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW |
393 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */
395 rtextsz = le32toh(hdr->rtextsz);
396 rdatasz = le32toh(hdr->rdatasz);
397 itextsz = le32toh(hdr->itextsz);
398 idatasz = le32toh(hdr->idatasz);
399 btextsz = le32toh(hdr->btextsz);
401 /* check that all firmware segments are present */
402 if (fp->datasize < sizeof (struct wpi_firmware_hdr) +
403 rtextsz + rdatasz + itextsz + idatasz + btextsz) {
404 device_printf(sc->sc_dev,
405 "firmware file too short: %zu bytes\n", fp->datasize);
406 error = ENXIO; /* XXX appropriate error code? */
410 /* get pointers to firmware segments */
411 rtext = (const uint8_t *)(hdr + 1);
412 rdata = rtext + rtextsz;
413 itext = rdata + rdatasz;
414 idata = itext + itextsz;
415 btext = idata + idatasz;
417 DPRINTFN(WPI_DEBUG_FIRMWARE,
418 ("Firmware Version: Major %d, Minor %d, Driver %d, \n"
419 "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n",
420 (le32toh(hdr->version) & 0xff000000) >> 24,
421 (le32toh(hdr->version) & 0x00ff0000) >> 16,
422 (le32toh(hdr->version) & 0x0000ffff),
424 itextsz, idatasz, btextsz));
426 DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext));
427 DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata));
428 DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext));
429 DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata));
430 DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext));
433 if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ ||
434 rdatasz > WPI_FW_MAIN_DATA_MAXSZ ||
435 itextsz > WPI_FW_INIT_TEXT_MAXSZ ||
436 idatasz > WPI_FW_INIT_DATA_MAXSZ ||
437 btextsz > WPI_FW_BOOT_TEXT_MAXSZ ||
438 (btextsz & 3) != 0) {
439 device_printf(sc->sc_dev, "firmware invalid\n");
444 /* copy initialization images into pre-allocated DMA-safe memory */
445 memcpy(dma->vaddr, idata, idatasz);
446 memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz);
448 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
450 /* tell adapter where to find initialization images */
452 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
453 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz);
454 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
455 dma->paddr + WPI_FW_INIT_DATA_MAXSZ);
456 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz);
459 /* load firmware boot code */
460 if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) {
461 device_printf(sc->sc_dev, "Failed to load microcode\n");
465 /* now press "execute" */
466 WPI_WRITE(sc, WPI_RESET, 0);
468 /* wait at most one second for the first alive notification */
469 if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) {
470 device_printf(sc->sc_dev,
471 "timeout waiting for adapter to initialize\n");
475 /* copy runtime images into pre-allocated DMA-sage memory */
476 memcpy(dma->vaddr, rdata, rdatasz);
477 memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz);
478 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
480 /* tell adapter where to find runtime images */
482 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr);
483 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz);
484 wpi_mem_write(sc, WPI_MEM_TEXT_BASE,
485 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ);
486 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz);
489 /* wait at most one second for the first alive notification */
490 if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) {
491 device_printf(sc->sc_dev,
492 "timeout waiting for adapter to initialize2\n");
496 DPRINTFN(WPI_DEBUG_FIRMWARE,
497 ("Firmware loaded to driver successfully\n"));
499 sc->sc_fw_image = img;
503 wpi_unload_firmware(sc);
508 * Free the referenced firmware image
511 wpi_unload_firmware(struct wpi_softc *sc)
519 lwkt_serialize_exit(ifp->if_serializer);
521 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD);
523 firmware_image_unload(sc->sc_fw_image);
526 lwkt_serialize_enter(ifp->if_serializer);
534 wpi_attach(device_t dev)
536 struct wpi_softc *sc = device_get_softc(dev);
538 struct ieee80211com *ic;
539 int ac, error, supportsa = 1;
541 const struct wpi_ident *ident;
542 uint8_t macaddr[IEEE80211_ADDR_LEN];
546 if (bootverbose || WPI_DEBUG_SET)
547 device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION);
550 * Some card's only support 802.11b/g not a, check to see if
551 * this is one such card. A 0x0 in the subdevice table indicates
552 * the entire subdevice range is to be ignored.
554 for (ident = wpi_ident_table; ident->name != NULL; ident++) {
555 if (ident->subdevice &&
556 pci_get_subdevice(dev) == ident->subdevice) {
562 /* Create the tasks that can be queued */
563 TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc);
564 TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc);
568 callout_init(&sc->calib_to);
569 callout_init(&sc->watchdog_to);
571 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
572 device_printf(dev, "chip is in D%d power mode "
573 "-- setting to D0\n", pci_get_powerstate(dev));
574 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
577 /* disable the retry timeout register */
578 pci_write_config(dev, 0x41, 0, 1);
580 /* enable bus-mastering */
581 pci_enable_busmaster(dev);
583 sc->mem_rid = PCIR_BAR(0);
584 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
586 if (sc->mem == NULL) {
587 device_printf(dev, "could not allocate memory resource\n");
592 sc->sc_st = rman_get_bustag(sc->mem);
593 sc->sc_sh = rman_get_bushandle(sc->mem);
596 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
597 RF_ACTIVE | RF_SHAREABLE);
598 if (sc->irq == NULL) {
599 device_printf(dev, "could not allocate interrupt resource\n");
605 * Allocate DMA memory for firmware transfers.
607 if ((error = wpi_alloc_fwmem(sc)) != 0) {
608 kprintf(": could not allocate firmware memory\n");
614 * Put adapter into a known state.
616 if ((error = wpi_reset(sc)) != 0) {
617 device_printf(dev, "could not reset adapter\n");
622 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
623 if (bootverbose || WPI_DEBUG_SET)
624 device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp);
628 /* Allocate shared page */
629 if ((error = wpi_alloc_shared(sc)) != 0) {
630 device_printf(dev, "could not allocate shared page\n");
634 /* tx data queues - 4 for QoS purposes */
635 for (ac = 0; ac < WME_NUM_AC; ac++) {
636 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac);
638 device_printf(dev, "could not allocate Tx ring %d\n",ac);
643 /* command queue to talk to the card's firmware */
644 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4);
646 device_printf(dev, "could not allocate command ring\n");
650 /* receive data queue */
651 error = wpi_alloc_rx_ring(sc, &sc->rxq);
653 device_printf(dev, "could not allocate Rx ring\n");
657 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
659 device_printf(dev, "can not if_alloc()\n");
666 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
667 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
669 /* set device capabilities */
671 IEEE80211_C_STA /* station mode supported */
672 | IEEE80211_C_MONITOR /* monitor mode supported */
673 | IEEE80211_C_TXPMGT /* tx power management */
674 | IEEE80211_C_SHSLOT /* short slot time supported */
675 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
676 | IEEE80211_C_WPA /* 802.11i */
677 /* XXX looks like WME is partly supported? */
679 | IEEE80211_C_IBSS /* IBSS mode support */
680 | IEEE80211_C_BGSCAN /* capable of bg scanning */
681 | IEEE80211_C_WME /* 802.11e */
682 | IEEE80211_C_HOSTAP /* Host access point mode */
687 * Read in the eeprom and also setup the channels for
688 * net80211. We don't set the rates as net80211 does this for us
690 wpi_read_eeprom(sc, macaddr);
692 if (bootverbose || WPI_DEBUG_SET) {
693 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain);
694 device_printf(sc->sc_dev, "Hardware Type: %c\n",
695 sc->type > 1 ? 'B': '?');
696 device_printf(sc->sc_dev, "Hardware Revision: %c\n",
697 ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?');
698 device_printf(sc->sc_dev, "SKU %s support 802.11a\n",
699 supportsa ? "does" : "does not");
701 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check
702 what sc->rev really represents - benjsc 20070615 */
705 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
707 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
708 ifp->if_init = wpi_init;
709 ifp->if_ioctl = wpi_ioctl;
710 ifp->if_start = wpi_start;
711 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
712 ifq_set_ready(&ifp->if_snd);
714 ieee80211_ifattach(ic, macaddr);
715 /* override default methods */
716 ic->ic_node_alloc = wpi_node_alloc;
717 ic->ic_newassoc = wpi_newassoc;
718 ic->ic_raw_xmit = wpi_raw_xmit;
719 ic->ic_wme.wme_update = wpi_wme_update;
720 ic->ic_scan_start = wpi_scan_start;
721 ic->ic_scan_end = wpi_scan_end;
722 ic->ic_set_channel = wpi_set_channel;
723 ic->ic_scan_curchan = wpi_scan_curchan;
724 ic->ic_scan_mindwell = wpi_scan_mindwell;
726 ic->ic_vap_create = wpi_vap_create;
727 ic->ic_vap_delete = wpi_vap_delete;
729 ieee80211_radiotap_attach(ic,
730 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
731 WPI_TX_RADIOTAP_PRESENT,
732 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
733 WPI_RX_RADIOTAP_PRESENT);
736 * Hook our interrupt after all initialization is complete.
738 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
739 wpi_intr, sc, &sc->sc_ih, ifp->if_serializer);
741 device_printf(dev, "could not set up interrupt\n");
746 ieee80211_announce(ic);
748 ieee80211_announce_channels(ic);
752 fail: wpi_detach(dev);
757 wpi_detach(device_t dev)
759 struct wpi_softc *sc = device_get_softc(dev);
760 struct ifnet *ifp = sc->sc_ifp;
761 struct ieee80211com *ic;
767 ieee80211_draintask(ic, &sc->sc_restarttask);
768 ieee80211_draintask(ic, &sc->sc_radiotask);
770 callout_stop(&sc->watchdog_to);
771 callout_stop(&sc->calib_to);
772 ieee80211_ifdetach(ic);
776 if (sc->txq[0].data_dmat) {
777 for (ac = 0; ac < WME_NUM_AC; ac++)
778 wpi_free_tx_ring(sc, &sc->txq[ac]);
780 wpi_free_tx_ring(sc, &sc->cmdq);
781 wpi_free_rx_ring(sc, &sc->rxq);
785 if (sc->fw_fp != NULL) {
786 wpi_unload_firmware(sc);
793 if (sc->irq != NULL) {
794 bus_teardown_intr(dev, sc->irq, sc->sc_ih);
795 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
799 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
804 WPI_LOCK_DESTROY(sc);
809 static struct ieee80211vap *
810 wpi_vap_create(struct ieee80211com *ic,
811 const char name[IFNAMSIZ], int unit, int opmode, int flags,
812 const uint8_t bssid[IEEE80211_ADDR_LEN],
813 const uint8_t mac[IEEE80211_ADDR_LEN])
816 struct ieee80211vap *vap;
818 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
820 wvp = (struct wpi_vap *) kmalloc(sizeof(struct wpi_vap),
821 M_80211_VAP, M_INTWAIT | M_ZERO);
825 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
826 /* override with driver methods */
827 wvp->newstate = vap->iv_newstate;
828 vap->iv_newstate = wpi_newstate;
830 ieee80211_ratectl_init(vap);
833 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
834 ic->ic_opmode = opmode;
839 wpi_vap_delete(struct ieee80211vap *vap)
841 struct wpi_vap *wvp = WPI_VAP(vap);
843 ieee80211_ratectl_deinit(vap);
844 ieee80211_vap_detach(vap);
845 kfree(wvp, M_80211_VAP);
849 wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
854 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
856 *(bus_addr_t *)arg = segs[0].ds_addr;
860 * Allocates a contiguous block of dma memory of the requested size and
861 * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217,
862 * allocations greater than 4096 may fail. Hence if the requested alignment is
863 * greater we allocate 'alignment' size extra memory and shift the vaddr and
864 * paddr after the dma load. This bypasses the problem at the cost of a little
868 wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma,
869 void **kvap, bus_size_t size, bus_size_t alignment, int flags)
875 DPRINTFN(WPI_DEBUG_DMA,
876 ("Size: %zd - alignment %zd\n", size, alignment));
881 if (alignment > 4096) {
883 reqsize = size + alignment;
888 error = bus_dma_tag_create(dma->tag, align,
889 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
894 device_printf(sc->sc_dev,
895 "could not create shared page DMA tag\n");
898 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start,
899 flags | BUS_DMA_ZERO, &dma->map);
901 device_printf(sc->sc_dev,
902 "could not allocate shared page DMA memory\n");
906 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start,
907 reqsize, wpi_dma_map_addr, &dma->paddr_start, flags);
909 /* Save the original pointers so we can free all the memory */
910 dma->paddr = dma->paddr_start;
911 dma->vaddr = dma->vaddr_start;
914 * Check the alignment and increment by 4096 until we get the
915 * requested alignment. Fail if can't obtain the alignment
918 if ((dma->paddr & (alignment -1 )) != 0) {
921 for (i = 0; i < alignment / 4096; i++) {
922 if ((dma->paddr & (alignment - 1 )) == 0)
927 if (i == alignment / 4096) {
928 device_printf(sc->sc_dev,
929 "alignment requirement was not satisfied\n");
935 device_printf(sc->sc_dev,
936 "could not load shared page DMA map\n");
946 wpi_dma_contig_free(dma);
951 wpi_dma_contig_free(struct wpi_dma_info *dma)
954 if (dma->map != NULL) {
955 if (dma->paddr_start != 0) {
956 bus_dmamap_sync(dma->tag, dma->map,
957 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
958 bus_dmamap_unload(dma->tag, dma->map);
960 bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map);
962 bus_dma_tag_destroy(dma->tag);
967 * Allocate a shared page between host and NIC.
970 wpi_alloc_shared(struct wpi_softc *sc)
974 error = wpi_dma_contig_alloc(sc, &sc->shared_dma,
975 (void **)&sc->shared, sizeof (struct wpi_shared),
980 device_printf(sc->sc_dev,
981 "could not allocate shared area DMA memory\n");
988 wpi_free_shared(struct wpi_softc *sc)
990 wpi_dma_contig_free(&sc->shared_dma);
994 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1001 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1002 (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t),
1003 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1006 device_printf(sc->sc_dev,
1007 "%s: could not allocate rx ring DMA memory, error %d\n",
1012 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
1013 BUS_SPACE_MAXADDR_32BIT,
1014 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
1015 MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat);
1017 device_printf(sc->sc_dev,
1018 "%s: bus_dma_tag_create_failed, error %d\n",
1026 for (i = 0; i < WPI_RX_RING_COUNT; i++) {
1027 struct wpi_rx_data *data = &ring->data[i];
1031 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1033 device_printf(sc->sc_dev,
1034 "%s: bus_dmamap_create failed, error %d\n",
1038 m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1040 device_printf(sc->sc_dev,
1041 "%s: could not allocate rx mbuf\n", __func__);
1046 error = bus_dmamap_load(ring->data_dmat, data->map,
1047 mtod(m, caddr_t), MCLBYTES,
1048 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1049 if (error != 0 && error != EFBIG) {
1050 device_printf(sc->sc_dev,
1051 "%s: bus_dmamap_load failed, error %d\n",
1054 error = ENOMEM; /* XXX unique code */
1057 bus_dmamap_sync(ring->data_dmat, data->map,
1058 BUS_DMASYNC_PREWRITE);
1061 ring->desc[i] = htole32(paddr);
1063 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
1064 BUS_DMASYNC_PREWRITE);
1067 wpi_free_rx_ring(sc, ring);
1072 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1078 WPI_WRITE(sc, WPI_RX_CONFIG, 0);
1080 for (ntries = 0; ntries < 100; ntries++) {
1081 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE)
1089 if (ntries == 100 && wpi_debug > 0)
1090 device_printf(sc->sc_dev, "timeout resetting Rx ring\n");
1097 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring)
1101 wpi_dma_contig_free(&ring->desc_dma);
1103 for (i = 0; i < WPI_RX_RING_COUNT; i++)
1104 if (ring->data[i].m != NULL)
1105 m_freem(ring->data[i].m);
1109 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count,
1112 struct wpi_tx_data *data;
1116 ring->count = count;
1121 error = wpi_dma_contig_alloc(sc, &ring->desc_dma,
1122 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc),
1123 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT);
1126 device_printf(sc->sc_dev, "could not allocate tx dma memory\n");
1130 /* update shared page with ring's base address */
1131 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr);
1133 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd,
1134 count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN,
1138 device_printf(sc->sc_dev,
1139 "could not allocate tx command DMA memory\n");
1143 ring->data = kmalloc(count * sizeof (struct wpi_tx_data), M_DEVBUF,
1144 M_INTWAIT | M_ZERO);
1145 if (ring->data == NULL) {
1146 device_printf(sc->sc_dev,
1147 "could not allocate tx data slots\n");
1151 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
1152 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
1153 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT,
1156 device_printf(sc->sc_dev, "could not create data DMA tag\n");
1160 for (i = 0; i < count; i++) {
1161 data = &ring->data[i];
1163 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
1165 device_printf(sc->sc_dev,
1166 "could not create tx buf DMA map\n");
1169 bus_dmamap_sync(ring->data_dmat, data->map,
1170 BUS_DMASYNC_PREWRITE);
1176 wpi_free_tx_ring(sc, ring);
1181 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1183 struct wpi_tx_data *data;
1188 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0);
1189 for (ntries = 0; ntries < 100; ntries++) {
1190 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid))
1195 if (ntries == 100 && wpi_debug > 0)
1196 device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n",
1201 for (i = 0; i < ring->count; i++) {
1202 data = &ring->data[i];
1204 if (data->m != NULL) {
1205 bus_dmamap_unload(ring->data_dmat, data->map);
1216 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring)
1218 struct wpi_tx_data *data;
1221 wpi_dma_contig_free(&ring->desc_dma);
1222 wpi_dma_contig_free(&ring->cmd_dma);
1224 if (ring->data != NULL) {
1225 for (i = 0; i < ring->count; i++) {
1226 data = &ring->data[i];
1228 if (data->m != NULL) {
1229 bus_dmamap_sync(ring->data_dmat, data->map,
1230 BUS_DMASYNC_POSTWRITE);
1231 bus_dmamap_unload(ring->data_dmat, data->map);
1236 kfree(ring->data, M_DEVBUF);
1239 if (ring->data_dmat != NULL)
1240 bus_dma_tag_destroy(ring->data_dmat);
1244 wpi_shutdown(device_t dev)
1246 struct wpi_softc *sc = device_get_softc(dev);
1249 wpi_stop_locked(sc);
1250 wpi_unload_firmware(sc);
1257 wpi_suspend(device_t dev)
1259 struct wpi_softc *sc = device_get_softc(dev);
1266 wpi_resume(device_t dev)
1268 struct wpi_softc *sc = device_get_softc(dev);
1269 struct ifnet *ifp = sc->sc_ifp;
1271 pci_write_config(dev, 0x41, 0, 1);
1273 if (ifp->if_flags & IFF_UP) {
1274 wpi_init(ifp->if_softc);
1275 if (ifp->if_flags & IFF_RUNNING)
1282 static struct ieee80211_node *
1283 wpi_node_alloc(struct ieee80211vap *vap __unused,
1284 const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
1286 struct wpi_node *wn;
1288 wn = kmalloc(sizeof (struct wpi_node), M_80211_NODE, M_INTWAIT | M_ZERO);
1294 * Called by net80211 when ever there is a change to 80211 state machine
1297 wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1299 struct wpi_vap *wvp = WPI_VAP(vap);
1300 struct ieee80211com *ic = vap->iv_ic;
1301 struct ifnet *ifp = ic->ic_ifp;
1302 struct wpi_softc *sc = ifp->if_softc;
1305 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__,
1306 ieee80211_state_name[vap->iv_state],
1307 ieee80211_state_name[nstate], sc->flags));
1309 IEEE80211_UNLOCK(ic);
1311 if (nstate == IEEE80211_S_AUTH) {
1312 /* The node must be registered in the firmware before auth */
1313 error = wpi_auth(sc, vap);
1315 device_printf(sc->sc_dev,
1316 "%s: could not move to auth state, error %d\n",
1320 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) {
1321 error = wpi_run(sc, vap);
1323 device_printf(sc->sc_dev,
1324 "%s: could not move to run state, error %d\n",
1328 if (nstate == IEEE80211_S_RUN) {
1329 /* RUN -> RUN transition; just restart the timers */
1330 wpi_calib_timeout(sc);
1331 /* XXX split out rate control timer */
1335 return wvp->newstate(vap, nstate, arg);
1339 * Grab exclusive access to NIC memory.
1342 wpi_mem_lock(struct wpi_softc *sc)
1347 tmp = WPI_READ(sc, WPI_GPIO_CTL);
1348 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC);
1350 /* spin until we actually get the lock */
1351 for (ntries = 0; ntries < 100; ntries++) {
1352 if ((WPI_READ(sc, WPI_GPIO_CTL) &
1353 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK)
1358 device_printf(sc->sc_dev, "could not lock memory\n");
1362 * Release lock on NIC memory.
1365 wpi_mem_unlock(struct wpi_softc *sc)
1367 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL);
1368 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC);
1372 wpi_mem_read(struct wpi_softc *sc, uint16_t addr)
1374 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr);
1375 return WPI_READ(sc, WPI_READ_MEM_DATA);
1379 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data)
1381 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr);
1382 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data);
1386 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr,
1387 const uint32_t *data, int wlen)
1389 for (; wlen > 0; wlen--, data++, addr+=4)
1390 wpi_mem_write(sc, addr, *data);
1394 * Read data from the EEPROM. We access EEPROM through the MAC instead of
1395 * using the traditional bit-bang method. Data is read up until len bytes have
1399 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len)
1403 uint8_t *out = data;
1407 for (; len > 0; len -= 2, addr++) {
1408 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2);
1410 for (ntries = 0; ntries < 10; ntries++) {
1411 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY)
1417 device_printf(sc->sc_dev, "could not read EEPROM\n");
1432 * The firmware text and data segments are transferred to the NIC using DMA.
1433 * The driver just copies the firmware into DMA-safe memory and tells the NIC
1434 * where to find it. Once the NIC has copied the firmware into its internal
1435 * memory, we can free our local copy in the driver.
1438 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size)
1442 DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size));
1444 size /= sizeof(uint32_t);
1448 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE,
1449 (const uint32_t *)fw, size);
1451 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0);
1452 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT);
1453 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size);
1456 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN);
1458 /* wait while the adapter is busy copying the firmware */
1459 for (error = 0, ntries = 0; ntries < 1000; ntries++) {
1460 uint32_t status = WPI_READ(sc, WPI_TX_STATUS);
1461 DPRINTFN(WPI_DEBUG_HW,
1462 ("firmware status=0x%x, val=0x%x, result=0x%x\n", status,
1463 WPI_TX_IDLE(6), status & WPI_TX_IDLE(6)));
1464 if (status & WPI_TX_IDLE(6)) {
1465 DPRINTFN(WPI_DEBUG_HW,
1466 ("Status Match! - ntries = %d\n", ntries));
1471 if (ntries == 1000) {
1472 device_printf(sc->sc_dev, "timeout transferring firmware\n");
1476 /* start the microcode executing */
1477 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE);
1485 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc,
1486 struct wpi_rx_data *data)
1488 struct ifnet *ifp = sc->sc_ifp;
1489 struct ieee80211com *ic = ifp->if_l2com;
1490 struct wpi_rx_ring *ring = &sc->rxq;
1491 struct wpi_rx_stat *stat;
1492 struct wpi_rx_head *head;
1493 struct wpi_rx_tail *tail;
1494 struct ieee80211_node *ni;
1495 struct mbuf *m, *mnew;
1499 stat = (struct wpi_rx_stat *)(desc + 1);
1501 if (stat->len > WPI_STAT_MAXLEN) {
1502 device_printf(sc->sc_dev, "invalid rx statistic header\n");
1507 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len);
1508 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len));
1510 DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d "
1511 "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len),
1512 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan,
1513 (uintmax_t)le64toh(tail->tstamp)));
1515 /* discard Rx frames with bad CRC early */
1516 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) {
1517 DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__,
1518 le32toh(tail->flags)));
1522 if (le16toh(head->len) < sizeof (struct ieee80211_frame)) {
1523 DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__,
1524 le16toh(head->len)));
1529 /* XXX don't need mbuf, just dma buffer */
1530 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1532 DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n",
1537 error = bus_dmamap_load(ring->data_dmat, data->map,
1538 mtod(mnew, caddr_t), MCLBYTES,
1539 wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT);
1540 if (error != 0 && error != EFBIG) {
1541 device_printf(sc->sc_dev,
1542 "%s: bus_dmamap_load failed, error %d\n", __func__, error);
1547 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1549 /* finalize mbuf and swap in new one */
1551 m->m_pkthdr.rcvif = ifp;
1552 m->m_data = (caddr_t)(head + 1);
1553 m->m_pkthdr.len = m->m_len = le16toh(head->len);
1556 /* update Rx descriptor */
1557 ring->desc[ring->cur] = htole32(paddr);
1559 if (ieee80211_radiotap_active(ic)) {
1560 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap;
1564 htole16(ic->ic_channels[head->chan].ic_freq);
1565 tap->wr_chan_flags =
1566 htole16(ic->ic_channels[head->chan].ic_flags);
1567 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET);
1568 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise);
1569 tap->wr_tsft = tail->tstamp;
1570 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf;
1571 switch (head->rate) {
1573 case 10: tap->wr_rate = 2; break;
1574 case 20: tap->wr_rate = 4; break;
1575 case 55: tap->wr_rate = 11; break;
1576 case 110: tap->wr_rate = 22; break;
1578 case 0xd: tap->wr_rate = 12; break;
1579 case 0xf: tap->wr_rate = 18; break;
1580 case 0x5: tap->wr_rate = 24; break;
1581 case 0x7: tap->wr_rate = 36; break;
1582 case 0x9: tap->wr_rate = 48; break;
1583 case 0xb: tap->wr_rate = 72; break;
1584 case 0x1: tap->wr_rate = 96; break;
1585 case 0x3: tap->wr_rate = 108; break;
1586 /* unknown rate: should not happen */
1587 default: tap->wr_rate = 0;
1589 if (le16toh(head->flags) & 0x4)
1590 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
1595 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1597 (void) ieee80211_input(ni, m, stat->rssi, 0);
1598 ieee80211_free_node(ni);
1600 (void) ieee80211_input_all(ic, m, stat->rssi, 0);
1606 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1608 struct ifnet *ifp = sc->sc_ifp;
1609 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1610 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1611 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1612 struct ieee80211_node *ni = txdata->ni;
1613 struct ieee80211vap *vap = ni->ni_vap;
1616 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1617 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1618 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1619 le32toh(stat->status)));
1622 * Update rate control statistics for the node.
1623 * XXX we should not count mgmt frames since they're always sent at
1624 * the lowest available bit-rate.
1625 * XXX frames w/o ACK shouldn't be used either
1627 if (stat->ntries > 0) {
1628 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1631 ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS,
1634 /* XXX oerrors should only count errors !maxtries */
1635 if ((le32toh(stat->status) & 0xff) != 1)
1640 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);
1641 bus_dmamap_unload(ring->data_dmat, txdata->map);
1642 /* XXX handle M_TXCB? */
1645 ieee80211_free_node(txdata->ni);
1650 sc->sc_tx_timer = 0;
1651 ifp->if_flags &= ~IFF_OACTIVE;
1652 wpi_start_locked(ifp);
1656 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1658 struct wpi_tx_ring *ring = &sc->cmdq;
1659 struct wpi_tx_data *data;
1661 DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x "
1662 "type=%s len=%d\n", desc->qid, desc->idx,
1663 desc->flags, wpi_cmd_str(desc->type),
1664 le32toh(desc->len)));
1666 if ((desc->qid & 7) != 4)
1667 return; /* not a command ack */
1669 data = &ring->data[desc->idx];
1671 /* if the command was mapped in a mbuf, free it */
1672 if (data->m != NULL) {
1673 bus_dmamap_unload(ring->data_dmat, data->map);
1678 sc->flags &= ~WPI_FLAG_BUSY;
1679 wakeup(&ring->cmd[desc->idx]);
1683 wpi_notif_intr(struct wpi_softc *sc)
1685 struct ifnet *ifp = sc->sc_ifp;
1686 struct ieee80211com *ic = ifp->if_l2com;
1687 struct wpi_rx_desc *desc;
1688 struct wpi_rx_data *data;
1691 hw = le32toh(sc->shared->next);
1692 while (sc->rxq.cur != hw) {
1693 data = &sc->rxq.data[sc->rxq.cur];
1694 desc = (void *)data->m->m_ext.ext_buf;
1696 DPRINTFN(WPI_DEBUG_NOTIFY,
1697 ("notify qid=%x idx=%d flags=%x type=%d len=%d\n",
1702 le32toh(desc->len)));
1704 if (!(desc->qid & 0x80)) /* reply to a command */
1705 wpi_cmd_intr(sc, desc);
1707 switch (desc->type) {
1709 /* a 802.11 frame was received */
1710 wpi_rx_intr(sc, desc, data);
1714 /* a 802.11 frame has been transmitted */
1715 wpi_tx_intr(sc, desc);
1720 struct wpi_ucode_info *uc =
1721 (struct wpi_ucode_info *)(desc + 1);
1723 /* the microcontroller is ready */
1724 DPRINTF(("microcode alive notification version %x "
1725 "alive %x\n", le32toh(uc->version),
1726 le32toh(uc->valid)));
1728 if (le32toh(uc->valid) != 1) {
1729 device_printf(sc->sc_dev,
1730 "microcontroller initialization failed\n");
1731 wpi_stop_locked(sc);
1735 case WPI_STATE_CHANGED:
1737 uint32_t *status = (uint32_t *)(desc + 1);
1739 /* enabled/disabled notification */
1740 DPRINTF(("state changed to %x\n", le32toh(*status)));
1742 if (le32toh(*status) & 1) {
1743 device_printf(sc->sc_dev,
1744 "Radio transmitter is switched off\n");
1745 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
1746 ifp->if_flags &= ~IFF_RUNNING;
1747 /* Disable firmware commands */
1748 WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD);
1752 case WPI_START_SCAN:
1755 struct wpi_start_scan *scan =
1756 (struct wpi_start_scan *)(desc + 1);
1759 DPRINTFN(WPI_DEBUG_SCANNING,
1760 ("scanning channel %d status %x\n",
1761 scan->chan, le32toh(scan->status)));
1767 struct wpi_stop_scan *scan =
1768 (struct wpi_stop_scan *)(desc + 1);
1770 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1772 DPRINTFN(WPI_DEBUG_SCANNING,
1773 ("scan finished nchan=%d status=%d chan=%d\n",
1774 scan->nchan, scan->status, scan->chan));
1776 sc->sc_scan_timer = 0;
1777 ieee80211_scan_next(vap);
1780 case WPI_MISSED_BEACON:
1782 struct wpi_missed_beacon *beacon =
1783 (struct wpi_missed_beacon *)(desc + 1);
1784 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1786 if (le32toh(beacon->consecutive) >=
1787 vap->iv_bmissthreshold) {
1788 DPRINTF(("Beacon miss: %u >= %u\n",
1789 le32toh(beacon->consecutive),
1790 vap->iv_bmissthreshold));
1791 ieee80211_beacon_miss(ic);
1797 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT;
1800 /* tell the firmware what we have processed */
1801 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1;
1802 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7);
1808 struct wpi_softc *sc = arg;
1813 r = WPI_READ(sc, WPI_INTR);
1814 if (r == 0 || r == 0xffffffff) {
1819 /* disable interrupts */
1820 WPI_WRITE(sc, WPI_MASK, 0);
1821 /* ack interrupts */
1822 WPI_WRITE(sc, WPI_INTR, r);
1824 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) {
1825 struct ifnet *ifp = sc->sc_ifp;
1826 struct ieee80211com *ic = ifp->if_l2com;
1827 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1829 device_printf(sc->sc_dev, "fatal firmware error\n");
1830 DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" :
1831 "(Hardware Error)"));
1833 ieee80211_cancel_scan(vap);
1834 ieee80211_runtask(ic, &sc->sc_restarttask);
1835 sc->flags &= ~WPI_FLAG_BUSY;
1840 if (r & WPI_RX_INTR)
1843 if (r & WPI_ALIVE_INTR) /* firmware initialized */
1846 /* re-enable interrupts */
1847 if (sc->sc_ifp->if_flags & IFF_UP)
1848 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
1854 wpi_plcp_signal(int rate)
1857 /* CCK rates (returned values are device-dependent) */
1861 case 22: return 110;
1863 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1864 /* R1-R4 (ral/ural is R4-R1) */
1865 case 12: return 0xd;
1866 case 18: return 0xf;
1867 case 24: return 0x5;
1868 case 36: return 0x7;
1869 case 48: return 0x9;
1870 case 72: return 0xb;
1871 case 96: return 0x1;
1872 case 108: return 0x3;
1874 /* unsupported rates (should not get there) */
1879 /* quickly determine if a given rate is CCK or OFDM */
1880 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
1883 * Construct the data packet for a transmit buffer and acutally put
1884 * the buffer onto the transmit ring, kicking the card to process the
1888 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1891 struct ieee80211vap *vap = ni->ni_vap;
1892 struct ifnet *ifp = sc->sc_ifp;
1893 struct ieee80211com *ic = ifp->if_l2com;
1894 const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams;
1895 struct wpi_tx_ring *ring = &sc->txq[ac];
1896 struct wpi_tx_desc *desc;
1897 struct wpi_tx_data *data;
1898 struct wpi_tx_cmd *cmd;
1899 struct wpi_cmd_data *tx;
1900 struct ieee80211_frame *wh;
1901 const struct ieee80211_txparam *tp;
1902 struct ieee80211_key *k;
1904 int i, error, nsegs, rate, hdrlen, ismcast;
1905 bus_dma_segment_t segs[WPI_MAX_SCATTER];
1907 desc = &ring->desc[ring->cur];
1908 data = &ring->data[ring->cur];
1910 wh = mtod(m0, struct ieee80211_frame *);
1912 hdrlen = ieee80211_hdrsize(wh);
1913 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
1915 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1916 k = ieee80211_crypto_encap(ni, m0);
1921 /* packet header may have moved, reset our local pointer */
1922 wh = mtod(m0, struct ieee80211_frame *);
1925 cmd = &ring->cmd[ring->cur];
1926 cmd->code = WPI_CMD_TX_DATA;
1928 cmd->qid = ring->qid;
1929 cmd->idx = ring->cur;
1931 tx = (struct wpi_cmd_data *)cmd->data;
1932 tx->flags = htole32(WPI_TX_AUTO_SEQ);
1933 tx->timeout = htole16(0);
1934 tx->ofdm_mask = 0xff;
1935 tx->cck_mask = 0x0f;
1936 tx->lifetime = htole32(WPI_LIFETIME_INFINITE);
1937 tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS;
1938 tx->len = htole16(m0->m_pkthdr.len);
1941 if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 ||
1942 !cap->cap_wmeParams[ac].wmep_noackPolicy)
1943 tx->flags |= htole32(WPI_TX_NEED_ACK);
1944 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) {
1945 tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP);
1950 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1951 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
1952 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
1953 /* tell h/w to set timestamp in probe responses */
1954 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1955 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP);
1956 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ ||
1957 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ)
1958 tx->timeout = htole16(3);
1960 tx->timeout = htole16(2);
1961 rate = tp->mgmtrate;
1962 } else if (ismcast) {
1963 rate = tp->mcastrate;
1964 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1965 rate = tp->ucastrate;
1967 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1968 rate = ni->ni_txrate;
1970 tx->rate = wpi_plcp_signal(rate);
1972 /* be very persistant at sending frames out */
1974 tx->data_ntries = tp->maxretry;
1976 tx->data_ntries = 30; /* XXX way too high */
1979 if (ieee80211_radiotap_active_vap(vap)) {
1980 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap;
1982 tap->wt_rate = rate;
1983 tap->wt_hwqueue = ac;
1984 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
1985 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP;
1987 ieee80211_radiotap_tx(vap, m0);
1990 /* save and trim IEEE802.11 header */
1991 m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh);
1994 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map, m0, segs,
1995 1, &nsegs, BUS_DMA_NOWAIT);
1996 if (error != 0 && error != EFBIG) {
1997 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
2003 /* XXX use m_collapse */
2004 mnew = m_defrag(m0, MB_DONTWAIT);
2006 device_printf(sc->sc_dev,
2007 "could not defragment mbuf\n");
2013 error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map,
2014 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT);
2016 device_printf(sc->sc_dev,
2017 "could not map mbuf (error %d)\n", error);
2026 DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n",
2027 ring->qid, ring->cur, m0->m_pkthdr.len, nsegs));
2029 /* first scatter/gather segment is used by the tx data command */
2030 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
2032 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2033 ring->cur * sizeof (struct wpi_tx_cmd));
2034 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data));
2035 for (i = 1; i <= nsegs; i++) {
2036 desc->segs[i].addr = htole32(segs[i - 1].ds_addr);
2037 desc->segs[i].len = htole32(segs[i - 1].ds_len);
2040 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2041 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2042 BUS_DMASYNC_PREWRITE);
2047 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT;
2048 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2054 * Process data waiting to be sent on the IFNET output queue
2057 wpi_start(struct ifnet *ifp)
2059 struct wpi_softc *sc = ifp->if_softc;
2062 wpi_start_locked(ifp);
2067 wpi_start_locked(struct ifnet *ifp)
2069 struct wpi_softc *sc = ifp->if_softc;
2070 struct ieee80211_node *ni;
2074 WPI_LOCK_ASSERT(sc);
2076 if ((ifp->if_flags & IFF_RUNNING) == 0) {
2077 ifq_purge(&ifp->if_snd);
2082 IF_DEQUEUE(&ifp->if_snd, m);
2085 ac = M_WME_GETAC(m);
2086 if (sc->txq[ac].queued > sc->txq[ac].count - 8) {
2087 /* there is no place left in this ring */
2088 ifq_prepend(&ifp->if_snd, m);
2089 ifp->if_flags |= IFF_OACTIVE;
2092 ni = ieee80211_ref_node(m->m_pkthdr.rcvif);
2093 if (wpi_tx_data(sc, m, ni, ac) != 0) {
2094 ieee80211_free_node(ni);
2098 sc->sc_tx_timer = 5;
2103 wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2104 const struct ieee80211_bpf_params *params)
2106 struct ieee80211com *ic = ni->ni_ic;
2107 struct ifnet *ifp = ic->ic_ifp;
2108 struct wpi_softc *sc = ifp->if_softc;
2110 /* prevent management frames from being sent if we're not ready */
2111 if (!(ifp->if_flags & IFF_RUNNING)) {
2113 ieee80211_free_node(ni);
2118 /* management frames go into ring 0 */
2119 if (sc->txq[0].queued > sc->txq[0].count - 8) {
2120 ifp->if_flags |= IFF_OACTIVE;
2123 ieee80211_free_node(ni);
2124 return ENOBUFS; /* XXX */
2128 if (wpi_tx_data(sc, m, ni, 0) != 0)
2130 sc->sc_tx_timer = 5;
2131 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
2138 ieee80211_free_node(ni);
2139 return EIO; /* XXX */
2143 wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cred)
2145 struct wpi_softc *sc = ifp->if_softc;
2146 struct ieee80211com *ic = ifp->if_l2com;
2147 struct ifreq *ifr = (struct ifreq *) data;
2148 int error = 0, startall = 0;
2153 if ((ifp->if_flags & IFF_UP)) {
2154 if (!(ifp->if_flags & IFF_RUNNING)) {
2155 wpi_init_locked(sc, 0);
2158 } else if ((ifp->if_flags & IFF_RUNNING) ||
2159 (sc->flags & WPI_FLAG_HW_RADIO_OFF))
2160 wpi_stop_locked(sc);
2163 ieee80211_start_all(ic);
2166 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2169 error = ether_ioctl(ifp, cmd, data);
2179 * Extract various information from EEPROM.
2182 wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2186 /* read the hardware capabilities, revision and SKU type */
2187 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1);
2188 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2);
2189 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1);
2191 /* read the regulatory domain */
2192 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4);
2194 /* read in the hw MAC address */
2195 wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6);
2197 /* read the list of authorized channels */
2198 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++)
2199 wpi_read_eeprom_channels(sc,i);
2201 /* read the power level calibration info for each group */
2202 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++)
2203 wpi_read_eeprom_group(sc,i);
2207 * Send a command to the firmware.
2210 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async)
2212 struct wpi_tx_ring *ring = &sc->cmdq;
2213 struct wpi_tx_desc *desc;
2214 struct wpi_tx_cmd *cmd;
2218 WPI_LOCK_ASSERT(sc);
2222 DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size,
2225 if (sc->flags & WPI_FLAG_BUSY) {
2226 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n",
2230 sc->flags|= WPI_FLAG_BUSY;
2232 KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes",
2235 desc = &ring->desc[ring->cur];
2236 cmd = &ring->cmd[ring->cur];
2240 cmd->qid = ring->qid;
2241 cmd->idx = ring->cur;
2242 memcpy(cmd->data, buf, size);
2244 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
2245 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2246 ring->cur * sizeof (struct wpi_tx_cmd));
2247 desc->segs[0].len = htole32(4 + size);
2250 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2251 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2254 sc->flags &= ~ WPI_FLAG_BUSY;
2258 return lksleep(cmd, &sc->sc_lock, 0, "wpicmd", hz);
2262 wpi_wme_update(struct ieee80211com *ic)
2264 #define WPI_EXP2(v) htole16((1 << (v)) - 1)
2265 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v))
2266 struct wpi_softc *sc = ic->ic_ifp->if_softc;
2267 const struct wmeParams *wmep;
2268 struct wpi_wme_setup wme;
2271 /* don't override default WME values if WME is not actually enabled */
2272 if (!(ic->ic_flags & IEEE80211_F_WME))
2276 for (ac = 0; ac < WME_NUM_AC; ac++) {
2277 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac];
2278 wme.ac[ac].aifsn = wmep->wmep_aifsn;
2279 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin);
2280 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax);
2281 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit);
2283 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d "
2284 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin,
2285 wme.ac[ac].cwmax, wme.ac[ac].txop));
2287 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1);
2293 * Configure h/w multi-rate retries.
2296 wpi_mrr_setup(struct wpi_softc *sc)
2298 struct ifnet *ifp = sc->sc_ifp;
2299 struct ieee80211com *ic = ifp->if_l2com;
2300 struct wpi_mrr_setup mrr;
2303 memset(&mrr, 0, sizeof (struct wpi_mrr_setup));
2305 /* CCK rates (not used with 802.11a) */
2306 for (i = WPI_CCK1; i <= WPI_CCK11; i++) {
2307 mrr.rates[i].flags = 0;
2308 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2309 /* fallback to the immediate lower CCK rate (if any) */
2310 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1;
2311 /* try one time at this rate before falling back to "next" */
2312 mrr.rates[i].ntries = 1;
2315 /* OFDM rates (not used with 802.11b) */
2316 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) {
2317 mrr.rates[i].flags = 0;
2318 mrr.rates[i].signal = wpi_ridx_to_plcp[i];
2319 /* fallback to the immediate lower OFDM rate (if any) */
2320 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */
2321 mrr.rates[i].next = (i == WPI_OFDM6) ?
2322 ((ic->ic_curmode == IEEE80211_MODE_11A) ?
2323 WPI_OFDM6 : WPI_CCK2) :
2325 /* try one time at this rate before falling back to "next" */
2326 mrr.rates[i].ntries = 1;
2329 /* setup MRR for control frames */
2330 mrr.which = htole32(WPI_MRR_CTL);
2331 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2333 device_printf(sc->sc_dev,
2334 "could not setup MRR for control frames\n");
2338 /* setup MRR for data frames */
2339 mrr.which = htole32(WPI_MRR_DATA);
2340 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0);
2342 device_printf(sc->sc_dev,
2343 "could not setup MRR for data frames\n");
2351 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on)
2353 struct wpi_cmd_led led;
2356 led.unit = htole32(100000); /* on/off in unit of 100ms */
2360 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1);
2364 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni)
2366 struct wpi_cmd_tsf tsf;
2369 memset(&tsf, 0, sizeof tsf);
2370 memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8);
2371 tsf.bintval = htole16(ni->ni_intval);
2372 tsf.lintval = htole16(10);
2374 /* compute remaining time until next beacon */
2375 val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */
2376 mod = le64toh(tsf.tstamp) % val;
2377 tsf.binitval = htole32((uint32_t)(val - mod));
2379 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0)
2380 device_printf(sc->sc_dev, "could not enable TSF\n");
2385 * Build a beacon frame that the firmware will broadcast periodically in
2386 * IBSS or HostAP modes.
2389 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni)
2391 struct ifnet *ifp = sc->sc_ifp;
2392 struct ieee80211com *ic = ifp->if_l2com;
2393 struct wpi_tx_ring *ring = &sc->cmdq;
2394 struct wpi_tx_desc *desc;
2395 struct wpi_tx_data *data;
2396 struct wpi_tx_cmd *cmd;
2397 struct wpi_cmd_beacon *bcn;
2398 struct ieee80211_beacon_offsets bo;
2400 bus_addr_t physaddr;
2403 desc = &ring->desc[ring->cur];
2404 data = &ring->data[ring->cur];
2406 m0 = ieee80211_beacon_alloc(ic, ni, &bo);
2408 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2412 cmd = &ring->cmd[ring->cur];
2413 cmd->code = WPI_CMD_SET_BEACON;
2415 cmd->qid = ring->qid;
2416 cmd->idx = ring->cur;
2418 bcn = (struct wpi_cmd_beacon *)cmd->data;
2419 memset(bcn, 0, sizeof (struct wpi_cmd_beacon));
2420 bcn->id = WPI_ID_BROADCAST;
2421 bcn->ofdm_mask = 0xff;
2422 bcn->cck_mask = 0x0f;
2423 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE);
2424 bcn->len = htole16(m0->m_pkthdr.len);
2425 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ?
2426 wpi_plcp_signal(12) : wpi_plcp_signal(2);
2427 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP);
2429 /* save and trim IEEE802.11 header */
2430 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh);
2431 m_adj(m0, sizeof (struct ieee80211_frame));
2433 /* assume beacon frame is contiguous */
2434 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *),
2435 m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0);
2437 device_printf(sc->sc_dev, "could not map beacon\n");
2444 /* first scatter/gather segment is used by the beacon command */
2445 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
2446 desc->segs[0].addr = htole32(ring->cmd_dma.paddr +
2447 ring->cur * sizeof (struct wpi_tx_cmd));
2448 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon));
2449 desc->segs[1].addr = htole32(physaddr);
2450 desc->segs[1].len = htole32(m0->m_pkthdr.len);
2453 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2454 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2461 wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap)
2463 struct ieee80211com *ic = vap->iv_ic;
2464 struct ieee80211_node *ni;
2465 struct wpi_node_info node;
2469 /* update adapter's configuration */
2470 sc->config.associd = 0;
2471 sc->config.filter &= ~htole32(WPI_FILTER_BSS);
2472 ni = ieee80211_ref_node(vap->iv_bss);
2473 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid);
2474 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan);
2475 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) {
2476 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2479 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) {
2480 sc->config.cck_mask = 0;
2481 sc->config.ofdm_mask = 0x15;
2482 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) {
2483 sc->config.cck_mask = 0x03;
2484 sc->config.ofdm_mask = 0;
2486 /* XXX assume 802.11b/g */
2487 sc->config.cck_mask = 0x0f;
2488 sc->config.ofdm_mask = 0x15;
2491 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan,
2492 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask));
2493 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2494 sizeof (struct wpi_config), 1);
2496 device_printf(sc->sc_dev, "could not configure\n");
2497 ieee80211_free_node(ni);
2501 /* configuration has changed, set Tx power accordingly */
2502 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) {
2503 device_printf(sc->sc_dev, "could not set Tx power\n");
2504 ieee80211_free_node(ni);
2508 /* add default node */
2509 memset(&node, 0, sizeof node);
2510 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid);
2511 ieee80211_free_node(ni);
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;
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 ni = ieee80211_ref_node(vap->iv_bss);
2538 wpi_enable_tsf(sc, ni);
2540 /* update adapter's configuration */
2541 sc->config.associd = htole16(ni->ni_associd & ~0xc000);
2542 /* short preamble/slot time are negotiated when associating */
2543 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE |
2545 if (ic->ic_flags & IEEE80211_F_SHSLOT)
2546 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT);
2547 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2548 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE);
2549 sc->config.filter |= htole32(WPI_FILTER_BSS);
2551 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */
2553 DPRINTF(("config chan %d flags %x\n", sc->config.chan,
2555 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct
2558 device_printf(sc->sc_dev, "could not update configuration\n");
2559 ieee80211_free_node(ni);
2563 error = wpi_set_txpower(sc, ni->ni_chan, 1);
2564 ieee80211_free_node(ni);
2566 device_printf(sc->sc_dev, "could set txpower\n");
2570 /* link LED always on while associated */
2571 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
2573 /* start automatic rate control timer */
2574 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
2580 * Send a scan request to the firmware. Since this command is huge, we map it
2581 * into a mbufcluster instead of using the pre-allocated set of commands. Note,
2582 * much of this code is similar to that in wpi_cmd but because we must manually
2583 * construct the probe & channels, we duplicate what's needed here. XXX In the
2584 * future, this function should be modified to use wpi_cmd to help cleanup the
2588 wpi_scan(struct wpi_softc *sc)
2590 struct ifnet *ifp = sc->sc_ifp;
2591 struct ieee80211com *ic = ifp->if_l2com;
2592 struct ieee80211_scan_state *ss = ic->ic_scan;
2593 struct wpi_tx_ring *ring = &sc->cmdq;
2594 struct wpi_tx_desc *desc;
2595 struct wpi_tx_data *data;
2596 struct wpi_tx_cmd *cmd;
2597 struct wpi_scan_hdr *hdr;
2598 struct wpi_scan_chan *chan;
2599 struct ieee80211_frame *wh;
2600 struct ieee80211_rateset *rs;
2601 struct ieee80211_channel *c;
2602 enum ieee80211_phymode mode;
2604 int nrates, pktlen, error, i, nssid;
2605 bus_addr_t physaddr;
2607 desc = &ring->desc[ring->cur];
2608 data = &ring->data[ring->cur];
2610 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
2611 if (data->m == NULL) {
2612 device_printf(sc->sc_dev,
2613 "could not allocate mbuf for scan command\n");
2617 cmd = mtod(data->m, struct wpi_tx_cmd *);
2618 cmd->code = WPI_CMD_SCAN;
2620 cmd->qid = ring->qid;
2621 cmd->idx = ring->cur;
2623 hdr = (struct wpi_scan_hdr *)cmd->data;
2624 memset(hdr, 0, sizeof(struct wpi_scan_hdr));
2627 * Move to the next channel if no packets are received within 5 msecs
2628 * after sending the probe request (this helps to reduce the duration
2631 hdr->quiet = htole16(5);
2632 hdr->threshold = htole16(1);
2634 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
2635 /* send probe requests at 6Mbps */
2636 hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6];
2638 /* Enable crc checking */
2639 hdr->promotion = htole16(1);
2641 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO);
2642 /* send probe requests at 1Mbps */
2643 hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1];
2645 hdr->tx.id = WPI_ID_BROADCAST;
2646 hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE);
2647 hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ);
2649 memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids));
2650 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS);
2651 for (i = 0; i < nssid; i++) {
2652 hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID;
2653 hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32);
2654 memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid,
2655 hdr->scan_essids[i].esslen);
2657 if (wpi_debug & WPI_DEBUG_SCANNING) {
2658 kprintf("Scanning Essid: ");
2659 ieee80211_print_essid(hdr->scan_essids[i].essid,
2660 hdr->scan_essids[i].esslen);
2667 * Build a probe request frame. Most of the following code is a
2668 * copy & paste of what is done in net80211.
2670 wh = (struct ieee80211_frame *)&hdr->scan_essids[4];
2671 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
2672 IEEE80211_FC0_SUBTYPE_PROBE_REQ;
2673 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
2674 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr);
2675 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp));
2676 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr);
2677 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */
2678 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */
2680 frm = (uint8_t *)(wh + 1);
2682 /* add essid IE, the hardware will fill this in for us */
2683 *frm++ = IEEE80211_ELEMID_SSID;
2686 mode = ieee80211_chan2mode(ic->ic_curchan);
2687 rs = &ic->ic_sup_rates[mode];
2689 /* add supported rates IE */
2690 *frm++ = IEEE80211_ELEMID_RATES;
2691 nrates = rs->rs_nrates;
2692 if (nrates > IEEE80211_RATE_SIZE)
2693 nrates = IEEE80211_RATE_SIZE;
2695 memcpy(frm, rs->rs_rates, nrates);
2698 /* add supported xrates IE */
2699 if (rs->rs_nrates > IEEE80211_RATE_SIZE) {
2700 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE;
2701 *frm++ = IEEE80211_ELEMID_XRATES;
2703 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates);
2707 /* setup length of probe request */
2708 hdr->tx.len = htole16(frm - (uint8_t *)wh);
2711 * Construct information about the channel that we
2712 * want to scan. The firmware expects this to be directly
2713 * after the scan probe request
2716 chan = (struct wpi_scan_chan *)frm;
2717 chan->chan = ieee80211_chan2ieee(ic, c);
2719 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2720 chan->flags |= WPI_CHAN_ACTIVE;
2722 chan->flags |= WPI_CHAN_DIRECT;
2724 chan->gain_dsp = 0x6e; /* Default level */
2725 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2726 chan->active = htole16(10);
2727 chan->passive = htole16(ss->ss_maxdwell);
2728 chan->gain_radio = 0x3b;
2730 chan->active = htole16(20);
2731 chan->passive = htole16(ss->ss_maxdwell);
2732 chan->gain_radio = 0x28;
2735 DPRINTFN(WPI_DEBUG_SCANNING,
2736 ("Scanning %u Passive: %d\n",
2738 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2743 frm += sizeof (struct wpi_scan_chan);
2745 // XXX All Channels....
2746 for (c = &ic->ic_channels[1];
2747 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) {
2748 if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags)
2751 chan->chan = ieee80211_chan2ieee(ic, c);
2753 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) {
2754 chan->flags |= WPI_CHAN_ACTIVE;
2755 if (ic->ic_des_ssid[0].len != 0)
2756 chan->flags |= WPI_CHAN_DIRECT;
2758 chan->gain_dsp = 0x6e; /* Default level */
2759 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2760 chan->active = htole16(10);
2761 chan->passive = htole16(110);
2762 chan->gain_radio = 0x3b;
2764 chan->active = htole16(20);
2765 chan->passive = htole16(120);
2766 chan->gain_radio = 0x28;
2769 DPRINTFN(WPI_DEBUG_SCANNING,
2770 ("Scanning %u Passive: %d\n",
2772 c->ic_flags & IEEE80211_CHAN_PASSIVE));
2777 frm += sizeof (struct wpi_scan_chan);
2781 hdr->len = htole16(frm - (uint8_t *)hdr);
2782 pktlen = frm - (uint8_t *)cmd;
2784 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen,
2785 wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT);
2787 device_printf(sc->sc_dev, "could not map scan command\n");
2793 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);
2794 desc->segs[0].addr = htole32(physaddr);
2795 desc->segs[0].len = htole32(pktlen);
2797 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map,
2798 BUS_DMASYNC_PREWRITE);
2799 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
2802 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT;
2803 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur);
2805 sc->sc_scan_timer = 5;
2806 return 0; /* will be notified async. of failure/success */
2810 * Configure the card to listen to a particular channel, this transisions the
2811 * card in to being able to receive frames from remote devices.
2814 wpi_config(struct wpi_softc *sc)
2816 struct ifnet *ifp = sc->sc_ifp;
2817 struct ieee80211com *ic = ifp->if_l2com;
2818 struct wpi_power power;
2819 struct wpi_bluetooth bluetooth;
2820 struct wpi_node_info node;
2823 /* set power mode */
2824 memset(&power, 0, sizeof power);
2825 power.flags = htole32(WPI_POWER_CAM|0x8);
2826 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2828 device_printf(sc->sc_dev, "could not set power mode\n");
2832 /* configure bluetooth coexistence */
2833 memset(&bluetooth, 0, sizeof bluetooth);
2834 bluetooth.flags = 3;
2835 bluetooth.lead = 0xaa;
2837 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth,
2840 device_printf(sc->sc_dev,
2841 "could not configure bluetooth coexistence\n");
2845 /* configure adapter */
2846 memset(&sc->config, 0, sizeof (struct wpi_config));
2847 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp));
2848 /*set default channel*/
2849 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan));
2850 sc->config.flags = htole32(WPI_CONFIG_TSF);
2851 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2852 sc->config.flags |= htole32(WPI_CONFIG_AUTO |
2855 sc->config.filter = 0;
2856 switch (ic->ic_opmode) {
2857 case IEEE80211_M_STA:
2858 case IEEE80211_M_WDS: /* No know setup, use STA for now */
2859 sc->config.mode = WPI_MODE_STA;
2860 sc->config.filter |= htole32(WPI_FILTER_MULTICAST);
2862 case IEEE80211_M_IBSS:
2863 case IEEE80211_M_AHDEMO:
2864 sc->config.mode = WPI_MODE_IBSS;
2865 sc->config.filter |= htole32(WPI_FILTER_BEACON |
2866 WPI_FILTER_MULTICAST);
2868 case IEEE80211_M_HOSTAP:
2869 sc->config.mode = WPI_MODE_HOSTAP;
2871 case IEEE80211_M_MONITOR:
2872 sc->config.mode = WPI_MODE_MONITOR;
2873 sc->config.filter |= htole32(WPI_FILTER_MULTICAST |
2874 WPI_FILTER_CTL | WPI_FILTER_PROMISC);
2877 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode);
2880 sc->config.cck_mask = 0x0f; /* not yet negotiated */
2881 sc->config.ofdm_mask = 0xff; /* not yet negotiated */
2882 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config,
2883 sizeof (struct wpi_config), 0);
2885 device_printf(sc->sc_dev, "configure command failed\n");
2889 /* configuration has changed, set Tx power accordingly */
2890 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) {
2891 device_printf(sc->sc_dev, "could not set Tx power\n");
2895 /* add broadcast node */
2896 memset(&node, 0, sizeof node);
2897 IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr);
2898 node.id = WPI_ID_BROADCAST;
2899 node.rate = wpi_plcp_signal(2);
2900 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0);
2902 device_printf(sc->sc_dev, "could not add broadcast node\n");
2906 /* Setup rate scalling */
2907 error = wpi_mrr_setup(sc);
2909 device_printf(sc->sc_dev, "could not setup MRR\n");
2917 wpi_stop_master(struct wpi_softc *sc)
2922 DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n"));
2924 tmp = WPI_READ(sc, WPI_RESET);
2925 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET);
2927 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2928 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP)
2929 return; /* already asleep */
2931 for (ntries = 0; ntries < 100; ntries++) {
2932 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED)
2936 if (ntries == 100) {
2937 device_printf(sc->sc_dev, "timeout waiting for master\n");
2942 wpi_power_up(struct wpi_softc *sc)
2948 tmp = wpi_mem_read(sc, WPI_MEM_POWER);
2949 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000);
2952 for (ntries = 0; ntries < 5000; ntries++) {
2953 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED)
2957 if (ntries == 5000) {
2958 device_printf(sc->sc_dev,
2959 "timeout waiting for NIC to power up\n");
2966 wpi_reset(struct wpi_softc *sc)
2971 DPRINTFN(WPI_DEBUG_HW,
2972 ("Resetting the card - clearing any uploaded firmware\n"));
2974 /* clear any pending interrupts */
2975 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
2977 tmp = WPI_READ(sc, WPI_PLL_CTL);
2978 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT);
2980 tmp = WPI_READ(sc, WPI_CHICKEN);
2981 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS);
2983 tmp = WPI_READ(sc, WPI_GPIO_CTL);
2984 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT);
2986 /* wait for clock stabilization */
2987 for (ntries = 0; ntries < 25000; ntries++) {
2988 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK)
2992 if (ntries == 25000) {
2993 device_printf(sc->sc_dev,
2994 "timeout waiting for clock stabilization\n");
2998 /* initialize EEPROM */
2999 tmp = WPI_READ(sc, WPI_EEPROM_STATUS);
3001 if ((tmp & WPI_EEPROM_VERSION) == 0) {
3002 device_printf(sc->sc_dev, "EEPROM not found\n");
3005 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED);
3011 wpi_hw_config(struct wpi_softc *sc)
3015 /* voodoo from the Linux "driver".. */
3016 hw = WPI_READ(sc, WPI_HWCONFIG);
3018 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1);
3019 if ((rev & 0xc0) == 0x40)
3020 hw |= WPI_HW_ALM_MB;
3021 else if (!(rev & 0x80))
3022 hw |= WPI_HW_ALM_MM;
3024 if (sc->cap == 0x80)
3025 hw |= WPI_HW_SKU_MRC;
3027 hw &= ~WPI_HW_REV_D;
3028 if ((le16toh(sc->rev) & 0xf0) == 0xd0)
3032 hw |= WPI_HW_TYPE_B;
3034 WPI_WRITE(sc, WPI_HWCONFIG, hw);
3038 wpi_rfkill_resume(struct wpi_softc *sc)
3040 struct ifnet *ifp = sc->sc_ifp;
3041 struct ieee80211com *ic = ifp->if_l2com;
3042 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3045 /* enable firmware again */
3046 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3047 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3049 /* wait for thermal sensors to calibrate */
3050 for (ntries = 0; ntries < 1000; ntries++) {
3051 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3056 if (ntries == 1000) {
3057 device_printf(sc->sc_dev,
3058 "timeout waiting for thermal calibration\n");
3062 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3064 if (wpi_config(sc) != 0) {
3065 device_printf(sc->sc_dev, "device config failed\n");
3070 ifp->if_flags &= ~IFF_OACTIVE;
3071 ifp->if_flags |= IFF_RUNNING;
3072 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3075 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
3076 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
3077 ieee80211_beacon_miss(ic);
3078 wpi_set_led(sc, WPI_LED_LINK, 0, 1);
3080 wpi_set_led(sc, WPI_LED_LINK, 5, 5);
3082 ieee80211_scan_next(vap);
3083 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3087 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3091 wpi_init_locked(struct wpi_softc *sc, int force)
3093 struct ifnet *ifp = sc->sc_ifp;
3097 wpi_stop_locked(sc);
3098 (void)wpi_reset(sc);
3101 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00);
3103 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV);
3104 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800);
3107 (void)wpi_power_up(sc);
3112 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr);
3113 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr +
3114 offsetof(struct wpi_shared, next));
3115 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7);
3116 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010);
3121 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */
3122 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */
3123 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */
3124 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000);
3125 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002);
3126 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4);
3127 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5);
3129 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr);
3130 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5);
3132 for (qid = 0; qid < 6; qid++) {
3133 WPI_WRITE(sc, WPI_TX_CTL(qid), 0);
3134 WPI_WRITE(sc, WPI_TX_BASE(qid), 0);
3135 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008);
3139 /* clear "radio off" and "disable command" bits (reversed logic) */
3140 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3141 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD);
3142 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3144 /* clear any pending interrupts */
3145 WPI_WRITE(sc, WPI_INTR, 0xffffffff);
3147 /* enable interrupts */
3148 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK);
3150 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3151 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF);
3153 if ((wpi_load_firmware(sc)) != 0) {
3154 device_printf(sc->sc_dev,
3155 "A problem occurred loading the firmware to the driver\n");
3159 /* At this point the firmware is up and running. If the hardware
3160 * RF switch is turned off thermal calibration will fail, though
3161 * the card is still happy to continue to accept commands, catch
3162 * this case and schedule a task to watch for it to be turned on.
3165 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3169 sc->flags |= WPI_FLAG_HW_RADIO_OFF;
3170 device_printf(sc->sc_dev,"Radio Transmitter is switched off\n");
3174 /* wait for thermal sensors to calibrate */
3175 for (ntries = 0; ntries < 1000; ntries++) {
3176 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0)
3181 if (ntries == 1000) {
3182 device_printf(sc->sc_dev,
3183 "timeout waiting for thermal sensors calibration\n");
3186 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp));
3188 if (wpi_config(sc) != 0) {
3189 device_printf(sc->sc_dev, "device config failed\n");
3193 ifp->if_flags &= ~IFF_OACTIVE;
3194 ifp->if_flags |= IFF_RUNNING;
3196 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3202 struct wpi_softc *sc = arg;
3203 struct ifnet *ifp = sc->sc_ifp;
3204 struct ieee80211com *ic = ifp->if_l2com;
3207 wpi_init_locked(sc, 0);
3210 if (ifp->if_flags & IFF_RUNNING)
3211 ieee80211_start_all(ic); /* start all vaps */
3215 wpi_stop_locked(struct wpi_softc *sc)
3217 struct ifnet *ifp = sc->sc_ifp;
3221 sc->sc_tx_timer = 0;
3222 sc->sc_scan_timer = 0;
3223 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3224 sc->flags &= ~WPI_FLAG_HW_RADIO_OFF;
3225 callout_stop(&sc->watchdog_to);
3226 callout_stop(&sc->calib_to);
3229 /* disable interrupts */
3230 WPI_WRITE(sc, WPI_MASK, 0);
3231 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK);
3232 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff);
3233 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000);
3236 wpi_mem_write(sc, WPI_MEM_MODE, 0);
3239 /* reset all Tx rings */
3240 for (ac = 0; ac < 4; ac++)
3241 wpi_reset_tx_ring(sc, &sc->txq[ac]);
3242 wpi_reset_tx_ring(sc, &sc->cmdq);
3245 wpi_reset_rx_ring(sc, &sc->rxq);
3248 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200);
3253 wpi_stop_master(sc);
3255 tmp = WPI_READ(sc, WPI_RESET);
3256 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET);
3257 sc->flags &= ~WPI_FLAG_BUSY;
3261 wpi_stop(struct wpi_softc *sc)
3264 wpi_stop_locked(sc);
3269 wpi_newassoc(struct ieee80211_node *ni, int isnew)
3272 ieee80211_ratectl_node_init(ni);
3276 wpi_calib_timeout(void *arg)
3278 struct wpi_softc *sc = arg;
3279 struct ifnet *ifp = sc->sc_ifp;
3280 struct ieee80211com *ic = ifp->if_l2com;
3281 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3284 if (vap->iv_state != IEEE80211_S_RUN)
3287 /* update sensor data */
3288 temp = (int)WPI_READ(sc, WPI_TEMPERATURE);
3289 DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp));
3291 wpi_power_calibration(sc, temp);
3293 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc);
3297 * This function is called periodically (every 60 seconds) to adjust output
3298 * power to temperature changes.
3301 wpi_power_calibration(struct wpi_softc *sc, int temp)
3303 struct ifnet *ifp = sc->sc_ifp;
3304 struct ieee80211com *ic = ifp->if_l2com;
3305 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3307 /* sanity-check read value */
3308 if (temp < -260 || temp > 25) {
3309 /* this can't be correct, ignore */
3310 DPRINTFN(WPI_DEBUG_TEMP,
3311 ("out-of-range temperature reported: %d\n", temp));
3315 DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp));
3317 /* adjust Tx power if need be */
3318 if (abs(temp - sc->temp) <= 6)
3323 if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) {
3324 /* just warn, too bad for the automatic calibration... */
3325 device_printf(sc->sc_dev,"could not adjust Tx power\n");
3330 * Read the eeprom to find out what channels are valid for the given
3331 * band and update net80211 with what we find.
3334 wpi_read_eeprom_channels(struct wpi_softc *sc, int n)
3336 struct ifnet *ifp = sc->sc_ifp;
3337 struct ieee80211com *ic = ifp->if_l2com;
3338 const struct wpi_chan_band *band = &wpi_bands[n];
3339 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND];
3340 struct ieee80211_channel *c;
3341 int chan, i, passive;
3343 wpi_read_prom_data(sc, band->addr, channels,
3344 band->nchan * sizeof (struct wpi_eeprom_chan));
3346 for (i = 0; i < band->nchan; i++) {
3347 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) {
3348 DPRINTFN(WPI_DEBUG_HW,
3349 ("Channel Not Valid: %d, band %d\n",
3355 chan = band->chan[i];
3356 c = &ic->ic_channels[ic->ic_nchans++];
3358 /* is active scan allowed on this channel? */
3359 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) {
3360 passive = IEEE80211_CHAN_PASSIVE;
3363 if (n == 0) { /* 2GHz band */
3365 c->ic_freq = ieee80211_ieee2mhz(chan,
3366 IEEE80211_CHAN_2GHZ);
3367 c->ic_flags = IEEE80211_CHAN_B | passive;
3369 c = &ic->ic_channels[ic->ic_nchans++];
3371 c->ic_freq = ieee80211_ieee2mhz(chan,
3372 IEEE80211_CHAN_2GHZ);
3373 c->ic_flags = IEEE80211_CHAN_G | passive;
3375 } else { /* 5GHz band */
3377 * Some 3945ABG adapters support channels 7, 8, 11
3378 * and 12 in the 2GHz *and* 5GHz bands.
3379 * Because of limitations in our net80211(9) stack,
3380 * we can't support these channels in 5GHz band.
3381 * XXX not true; just need to map to proper frequency
3387 c->ic_freq = ieee80211_ieee2mhz(chan,
3388 IEEE80211_CHAN_5GHZ);
3389 c->ic_flags = IEEE80211_CHAN_A | passive;
3392 /* save maximum allowed power for this channel */
3393 sc->maxpwr[chan] = channels[i].maxpwr;
3396 // XXX We can probably use this an get rid of maxpwr - ben 20070617
3397 ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr;
3398 //ic->ic_channels[chan].ic_minpower...
3399 //ic->ic_channels[chan].ic_maxregtxpower...
3402 DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d"
3403 " passive=%d, offset %d\n", chan, c->ic_freq,
3404 channels[i].flags, sc->maxpwr[chan],
3405 (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0,
3411 wpi_read_eeprom_group(struct wpi_softc *sc, int n)
3413 struct wpi_power_group *group = &sc->groups[n];
3414 struct wpi_eeprom_group rgroup;
3417 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup,
3420 /* save power group information */
3421 group->chan = rgroup.chan;
3422 group->maxpwr = rgroup.maxpwr;
3423 /* temperature at which the samples were taken */
3424 group->temp = (int16_t)le16toh(rgroup.temp);
3426 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3427 group->chan, group->maxpwr, group->temp));
3429 for (i = 0; i < WPI_SAMPLES_COUNT; i++) {
3430 group->samples[i].index = rgroup.samples[i].index;
3431 group->samples[i].power = rgroup.samples[i].power;
3433 DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3434 group->samples[i].index, group->samples[i].power));
3439 * Update Tx power to match what is defined for channel `c'.
3442 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async)
3444 struct ifnet *ifp = sc->sc_ifp;
3445 struct ieee80211com *ic = ifp->if_l2com;
3446 struct wpi_power_group *group;
3447 struct wpi_cmd_txpower txpower;
3451 /* get channel number */
3452 chan = ieee80211_chan2ieee(ic, c);
3454 /* find the power group to which this channel belongs */
3455 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3456 for (group = &sc->groups[1]; group < &sc->groups[4]; group++)
3457 if (chan <= group->chan)
3460 group = &sc->groups[0];
3462 memset(&txpower, 0, sizeof txpower);
3463 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1;
3464 txpower.channel = htole16(chan);
3466 /* set Tx power for all OFDM and CCK rates */
3467 for (i = 0; i <= 11 ; i++) {
3468 /* retrieve Tx power for this channel/rate combination */
3469 int idx = wpi_get_power_index(sc, group, c,
3470 wpi_ridx_to_rate[i]);
3472 txpower.rates[i].rate = wpi_ridx_to_plcp[i];
3474 if (IEEE80211_IS_CHAN_5GHZ(c)) {
3475 txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx];
3476 txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx];
3478 txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx];
3479 txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx];
3481 DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3482 chan, wpi_ridx_to_rate[i], idx));
3485 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async);
3489 * Determine Tx power index for a given channel/rate combination.
3490 * This takes into account the regulatory information from EEPROM and the
3491 * current temperature.
3494 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group,
3495 struct ieee80211_channel *c, int rate)
3497 /* fixed-point arithmetic division using a n-bit fractional part */
3498 #define fdivround(a, b, n) \
3499 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n))
3501 /* linear interpolation */
3502 #define interpolate(x, x1, y1, x2, y2, n) \
3503 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n))
3505 struct ifnet *ifp = sc->sc_ifp;
3506 struct ieee80211com *ic = ifp->if_l2com;
3507 struct wpi_power_sample *sample;
3511 /* get channel number */
3512 chan = ieee80211_chan2ieee(ic, c);
3514 /* default power is group's maximum power - 3dB */
3515 pwr = group->maxpwr / 2;
3517 /* decrease power for highest OFDM rates to reduce distortion */
3519 case 72: /* 36Mb/s */
3520 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5;
3522 case 96: /* 48Mb/s */
3523 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10;
3525 case 108: /* 54Mb/s */
3526 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12;
3530 /* never exceed channel's maximum allowed Tx power */
3531 pwr = min(pwr, sc->maxpwr[chan]);
3533 /* retrieve power index into gain tables from samples */
3534 for (sample = group->samples; sample < &group->samples[3]; sample++)
3535 if (pwr > sample[1].power)
3537 /* fixed-point linear interpolation using a 19-bit fractional part */
3538 idx = interpolate(pwr, sample[0].power, sample[0].index,
3539 sample[1].power, sample[1].index, 19);
3542 * Adjust power index based on current temperature
3543 * - if colder than factory-calibrated: decreate output power
3544 * - if warmer than factory-calibrated: increase output power
3546 idx -= (sc->temp - group->temp) * 11 / 100;
3548 /* decrease power for CCK rates (-5dB) */
3549 if (!WPI_RATE_IS_OFDM(rate))
3552 /* keep power index in a valid range */
3555 if (idx > WPI_MAX_PWR_INDEX)
3556 return WPI_MAX_PWR_INDEX;
3564 * Called by net80211 framework to indicate that a scan
3565 * is starting. This function doesn't actually do the scan,
3566 * wpi_scan_curchan starts things off. This function is more
3567 * of an early warning from the framework we should get ready
3571 wpi_scan_start(struct ieee80211com *ic)
3573 struct ifnet *ifp = ic->ic_ifp;
3574 struct wpi_softc *sc = ifp->if_softc;
3577 wpi_set_led(sc, WPI_LED_LINK, 20, 2);
3582 * Called by the net80211 framework, indicates that the
3583 * scan has ended. If there is a scan in progress on the card
3584 * then it should be aborted.
3587 wpi_scan_end(struct ieee80211com *ic)
3593 * Called by the net80211 framework to indicate to the driver
3594 * that the channel should be changed
3597 wpi_set_channel(struct ieee80211com *ic)
3599 struct ifnet *ifp = ic->ic_ifp;
3600 struct wpi_softc *sc = ifp->if_softc;
3604 * Only need to set the channel in Monitor mode. AP scanning and auth
3605 * are already taken care of by their respective firmware commands.
3607 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
3608 error = wpi_config(sc);
3610 device_printf(sc->sc_dev,
3611 "error %d settting channel\n", error);
3616 * Called by net80211 to indicate that we need to scan the current
3617 * channel. The channel is previously be set via the wpi_set_channel
3621 wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
3623 struct ieee80211vap *vap = ss->ss_vap;
3624 struct ifnet *ifp = vap->iv_ic->ic_ifp;
3625 struct wpi_softc *sc = ifp->if_softc;
3629 ieee80211_cancel_scan(vap);
3634 * Called by the net80211 framework to indicate
3635 * the minimum dwell time has been met, terminate the scan.
3636 * We don't actually terminate the scan as the firmware will notify
3637 * us when it's finished and we have no way to interrupt it.
3640 wpi_scan_mindwell(struct ieee80211_scan_state *ss)
3642 /* NB: don't try to abort scan; wait for firmware to finish */
3646 wpi_hwreset(void *arg, int pending)
3648 struct wpi_softc *sc = arg;
3651 wpi_init_locked(sc, 0);
3656 wpi_rfreset(void *arg, int pending)
3658 struct wpi_softc *sc = arg;
3661 wpi_rfkill_resume(sc);
3666 * Allocate DMA-safe memory for firmware transfer.
3669 wpi_alloc_fwmem(struct wpi_softc *sc)
3671 /* allocate enough contiguous space to store text and data */
3672 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL,
3673 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1,
3678 wpi_free_fwmem(struct wpi_softc *sc)
3680 wpi_dma_contig_free(&sc->fw_dma);
3684 * Called every second, wpi_watchdog used by the watch dog timer
3685 * to check that the card is still alive
3688 wpi_watchdog(void *arg)
3690 struct wpi_softc *sc = arg;
3691 struct ifnet *ifp = sc->sc_ifp;
3692 struct ieee80211com *ic = ifp->if_l2com;
3695 DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n"));
3697 if (sc->flags & WPI_FLAG_HW_RADIO_OFF) {
3698 /* No need to lock firmware memory */
3699 tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF);
3701 if ((tmp & 0x1) == 0) {
3702 /* Radio kill switch is still off */
3703 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3707 device_printf(sc->sc_dev, "Hardware Switch Enabled\n");
3708 ieee80211_runtask(ic, &sc->sc_radiotask);
3712 if (sc->sc_tx_timer > 0) {
3713 if (--sc->sc_tx_timer == 0) {
3714 device_printf(sc->sc_dev,"device timeout\n");
3716 ieee80211_runtask(ic, &sc->sc_restarttask);
3719 if (sc->sc_scan_timer > 0) {
3720 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3721 if (--sc->sc_scan_timer == 0 && vap != NULL) {
3722 device_printf(sc->sc_dev,"scan timeout\n");
3723 ieee80211_cancel_scan(vap);
3724 ieee80211_runtask(ic, &sc->sc_restarttask);
3728 if (ifp->if_flags & IFF_RUNNING)
3729 callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc);
3733 static const char *wpi_cmd_str(int cmd)
3736 case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD";
3737 case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE";
3738 case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE";
3739 case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME";
3740 case WPI_CMD_TSF: return "WPI_CMD_TSF";
3741 case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE";
3742 case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA";
3743 case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP";
3744 case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED";
3745 case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE";
3746 case WPI_CMD_SCAN: return "WPI_CMD_SCAN";
3747 case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON";
3748 case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER";
3749 case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH";
3752 KASSERT(1, ("Unknown Command: %d\n", cmd));
3753 return "UNKNOWN CMD"; /* Make the compiler happy */
3758 MODULE_DEPEND(wpi, pci, 1, 1, 1);
3759 MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3760 MODULE_DEPEND(wpi, firmware, 1, 1, 1);
3761 MODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1);
3763 MODULE_DEPEND(wpi, wpifw_fw_fw, 1, 1, 1);
3764 MODULE_DEPEND(wpi, ath_rate, 1, 1, 1);