wlan - Update wlan from Adrian / FreeBSD
[dragonfly.git] / sys / bus / u4b / wlan / if_uath.c
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12bd3c8b
SW
1/*-
2 * Copyright (c) 2006 Sam Leffler, Errno Consulting
3 * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer,
11 * without modification.
12 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
13 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
14 * redistribution must be conditioned upon including a substantially
15 * similar Disclaimer requirement for further binary redistribution.
16 *
17 * NO WARRANTY
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
21 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
23 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
26 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGES.
29 */
30
31/*
32 * This driver is distantly derived from a driver of the same name
33 * by Damien Bergamini. The original copyright is included below:
34 *
35 * Copyright (c) 2006
36 * Damien Bergamini <damien.bergamini@free.fr>
37 *
38 * Permission to use, copy, modify, and distribute this software for any
39 * purpose with or without fee is hereby granted, provided that the above
40 * copyright notice and this permission notice appear in all copies.
41 *
42 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
43 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
44 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
45 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
46 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
47 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
48 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
49 */
50
51#include <sys/cdefs.h>
52__FBSDID("$FreeBSD$");
53
54/*-
55 * Driver for Atheros AR5523 USB parts.
56 *
57 * The driver requires firmware to be loaded into the device. This
58 * is done on device discovery from a user application (uathload)
59 * that is launched by devd when a device with suitable product ID
60 * is recognized. Once firmware has been loaded the device will
61 * reset the USB port and re-attach with the original product ID+1
62 * and this driver will be attached. The firmware is licensed for
63 * general use (royalty free) and may be incorporated in products.
64 * Note that the firmware normally packaged with the NDIS drivers
65 * for these devices does not work in this way and so does not work
66 * with this driver.
67 */
68#include <sys/param.h>
69#include <sys/sockio.h>
70#include <sys/sysctl.h>
71#include <sys/lock.h>
72#include <sys/mutex.h>
73#include <sys/mbuf.h>
74#include <sys/kernel.h>
75#include <sys/socket.h>
76#include <sys/systm.h>
77#include <sys/malloc.h>
78#include <sys/module.h>
79#include <sys/bus.h>
80#include <sys/endian.h>
81#include <sys/kdb.h>
82
83#include <machine/bus.h>
84#include <machine/resource.h>
85#include <sys/rman.h>
86
87#include <net/bpf.h>
88#include <net/if.h>
89#include <net/if_arp.h>
90#include <net/ethernet.h>
91#include <net/if_dl.h>
92#include <net/if_media.h>
93#include <net/if_types.h>
94
95#ifdef INET
96#include <netinet/in.h>
97#include <netinet/in_systm.h>
98#include <netinet/in_var.h>
99#include <netinet/if_ether.h>
100#include <netinet/ip.h>
101#endif
102
103#include <net80211/ieee80211_var.h>
104#include <net80211/ieee80211_regdomain.h>
105#include <net80211/ieee80211_radiotap.h>
106
107#include <dev/usb/usb.h>
108#include <dev/usb/usbdi.h>
109#include "usbdevs.h"
110
111#include <dev/usb/wlan/if_uathreg.h>
112#include <dev/usb/wlan/if_uathvar.h>
113
114static SYSCTL_NODE(_hw_usb, OID_AUTO, uath, CTLFLAG_RW, 0, "USB Atheros");
115
116static int uath_countrycode = CTRY_DEFAULT; /* country code */
117SYSCTL_INT(_hw_usb_uath, OID_AUTO, countrycode, CTLFLAG_RW, &uath_countrycode,
118 0, "country code");
119TUNABLE_INT("hw.usb.uath.countrycode", &uath_countrycode);
120static int uath_regdomain = 0; /* regulatory domain */
121SYSCTL_INT(_hw_usb_uath, OID_AUTO, regdomain, CTLFLAG_RD, &uath_regdomain,
122 0, "regulatory domain");
123
124#ifdef UATH_DEBUG
125int uath_debug = 0;
126SYSCTL_INT(_hw_usb_uath, OID_AUTO, debug, CTLFLAG_RW, &uath_debug, 0,
127 "uath debug level");
128TUNABLE_INT("hw.usb.uath.debug", &uath_debug);
129enum {
130 UATH_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
131 UATH_DEBUG_XMIT_DUMP = 0x00000002, /* xmit dump */
132 UATH_DEBUG_RECV = 0x00000004, /* basic recv operation */
133 UATH_DEBUG_TX_PROC = 0x00000008, /* tx ISR proc */
134 UATH_DEBUG_RX_PROC = 0x00000010, /* rx ISR proc */
135 UATH_DEBUG_RECV_ALL = 0x00000020, /* trace all frames (beacons) */
136 UATH_DEBUG_INIT = 0x00000040, /* initialization of dev */
137 UATH_DEBUG_DEVCAP = 0x00000080, /* dev caps */
138 UATH_DEBUG_CMDS = 0x00000100, /* commands */
139 UATH_DEBUG_CMDS_DUMP = 0x00000200, /* command buffer dump */
140 UATH_DEBUG_RESET = 0x00000400, /* reset processing */
141 UATH_DEBUG_STATE = 0x00000800, /* 802.11 state transitions */
142 UATH_DEBUG_MULTICAST = 0x00001000, /* multicast */
143 UATH_DEBUG_WME = 0x00002000, /* WME */
144 UATH_DEBUG_CHANNEL = 0x00004000, /* channel */
145 UATH_DEBUG_RATES = 0x00008000, /* rates */
146 UATH_DEBUG_CRYPTO = 0x00010000, /* crypto */
147 UATH_DEBUG_LED = 0x00020000, /* LED */
148 UATH_DEBUG_ANY = 0xffffffff
149};
150#define DPRINTF(sc, m, fmt, ...) do { \
151 if (sc->sc_debug & (m)) \
152 printf(fmt, __VA_ARGS__); \
153} while (0)
154#else
155#define DPRINTF(sc, m, fmt, ...) do { \
156 (void) sc; \
157} while (0)
158#endif
159
160/* unaligned little endian access */
161#define LE_READ_2(p) \
162 ((u_int16_t) \
163 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)))
164#define LE_READ_4(p) \
165 ((u_int32_t) \
166 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \
167 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
168
169/* recognized device vendors/products */
170static const STRUCT_USB_HOST_ID uath_devs[] = {
171#define UATH_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
172 UATH_DEV(ACCTON, SMCWUSBTG2),
173 UATH_DEV(ATHEROS, AR5523),
174 UATH_DEV(ATHEROS2, AR5523_1),
175 UATH_DEV(ATHEROS2, AR5523_2),
176 UATH_DEV(ATHEROS2, AR5523_3),
177 UATH_DEV(CONCEPTRONIC, AR5523_1),
178 UATH_DEV(CONCEPTRONIC, AR5523_2),
179 UATH_DEV(DLINK, DWLAG122),
180 UATH_DEV(DLINK, DWLAG132),
181 UATH_DEV(DLINK, DWLG132),
182 UATH_DEV(DLINK2, DWA120),
183 UATH_DEV(GIGASET, AR5523),
184 UATH_DEV(GIGASET, SMCWUSBTG),
185 UATH_DEV(GLOBALSUN, AR5523_1),
186 UATH_DEV(GLOBALSUN, AR5523_2),
187 UATH_DEV(NETGEAR, WG111U),
188 UATH_DEV(NETGEAR3, WG111T),
189 UATH_DEV(NETGEAR3, WPN111),
190 UATH_DEV(NETGEAR3, WPN111_2),
191 UATH_DEV(UMEDIA, TEW444UBEU),
192 UATH_DEV(UMEDIA, AR5523_2),
193 UATH_DEV(WISTRONNEWEB, AR5523_1),
194 UATH_DEV(WISTRONNEWEB, AR5523_2),
195 UATH_DEV(ZCOM, AR5523)
196#undef UATH_DEV
197};
198
199static usb_callback_t uath_intr_rx_callback;
200static usb_callback_t uath_intr_tx_callback;
201static usb_callback_t uath_bulk_rx_callback;
202static usb_callback_t uath_bulk_tx_callback;
203
204static const struct usb_config uath_usbconfig[UATH_N_XFERS] = {
205 [UATH_INTR_RX] = {
206 .type = UE_BULK,
207 .endpoint = 0x1,
208 .direction = UE_DIR_IN,
209 .bufsize = UATH_MAX_CMDSZ,
210 .flags = {
211 .pipe_bof = 1,
212 .short_xfer_ok = 1
213 },
214 .callback = uath_intr_rx_callback
215 },
216 [UATH_INTR_TX] = {
217 .type = UE_BULK,
218 .endpoint = 0x1,
219 .direction = UE_DIR_OUT,
220 .bufsize = UATH_MAX_CMDSZ,
221 .flags = {
222 .ext_buffer = 1,
223 .force_short_xfer = 1,
224 .pipe_bof = 1,
225 },
226 .callback = uath_intr_tx_callback,
227 .timeout = UATH_CMD_TIMEOUT
228 },
229 [UATH_BULK_RX] = {
230 .type = UE_BULK,
231 .endpoint = 0x2,
232 .direction = UE_DIR_IN,
233 .bufsize = MCLBYTES,
234 .flags = {
235 .ext_buffer = 1,
236 .pipe_bof = 1,
237 .short_xfer_ok = 1
238 },
239 .callback = uath_bulk_rx_callback
240 },
241 [UATH_BULK_TX] = {
242 .type = UE_BULK,
243 .endpoint = 0x2,
244 .direction = UE_DIR_OUT,
245 .bufsize = UATH_MAX_TXBUFSZ,
246 .flags = {
247 .ext_buffer = 1,
248 .force_short_xfer = 1,
249 .pipe_bof = 1
250 },
251 .callback = uath_bulk_tx_callback,
252 .timeout = UATH_DATA_TIMEOUT
253 }
254};
255
256static struct ieee80211vap *uath_vap_create(struct ieee80211com *,
257 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
258 const uint8_t [IEEE80211_ADDR_LEN],
259 const uint8_t [IEEE80211_ADDR_LEN]);
260static void uath_vap_delete(struct ieee80211vap *);
261static int uath_alloc_cmd_list(struct uath_softc *, struct uath_cmd [],
262 int, int);
263static void uath_free_cmd_list(struct uath_softc *, struct uath_cmd [],
264 int);
265static int uath_host_available(struct uath_softc *);
266static int uath_get_capability(struct uath_softc *, uint32_t, uint32_t *);
267static int uath_get_devcap(struct uath_softc *);
268static struct uath_cmd *
269 uath_get_cmdbuf(struct uath_softc *);
270static int uath_cmd_read(struct uath_softc *, uint32_t, const void *,
271 int, void *, int, int);
272static int uath_cmd_write(struct uath_softc *, uint32_t, const void *,
273 int, int);
274static void uath_stat(void *);
275#ifdef UATH_DEBUG
276static void uath_dump_cmd(const uint8_t *, int, char);
277static const char *
278 uath_codename(int);
279#endif
280static int uath_get_devstatus(struct uath_softc *,
281 uint8_t macaddr[IEEE80211_ADDR_LEN]);
282static int uath_get_status(struct uath_softc *, uint32_t, void *, int);
283static int uath_alloc_rx_data_list(struct uath_softc *);
284static int uath_alloc_tx_data_list(struct uath_softc *);
285static void uath_free_rx_data_list(struct uath_softc *);
286static void uath_free_tx_data_list(struct uath_softc *);
287static int uath_init_locked(void *);
288static void uath_init(void *);
289static void uath_stop_locked(struct ifnet *);
290static void uath_stop(struct ifnet *);
291static int uath_ioctl(struct ifnet *, u_long, caddr_t);
292static void uath_start(struct ifnet *);
293static int uath_raw_xmit(struct ieee80211_node *, struct mbuf *,
294 const struct ieee80211_bpf_params *);
295static void uath_scan_start(struct ieee80211com *);
296static void uath_scan_end(struct ieee80211com *);
297static void uath_set_channel(struct ieee80211com *);
298static void uath_update_mcast(struct ifnet *);
299static void uath_update_promisc(struct ifnet *);
300static int uath_config(struct uath_softc *, uint32_t, uint32_t);
301static int uath_config_multi(struct uath_softc *, uint32_t, const void *,
302 int);
303static int uath_switch_channel(struct uath_softc *,
304 struct ieee80211_channel *);
305static int uath_set_rxfilter(struct uath_softc *, uint32_t, uint32_t);
306static void uath_watchdog(void *);
307static void uath_abort_xfers(struct uath_softc *);
308static int uath_dataflush(struct uath_softc *);
309static int uath_cmdflush(struct uath_softc *);
310static int uath_flush(struct uath_softc *);
311static int uath_set_ledstate(struct uath_softc *, int);
312static int uath_set_chan(struct uath_softc *, struct ieee80211_channel *);
313static int uath_reset_tx_queues(struct uath_softc *);
314static int uath_wme_init(struct uath_softc *);
315static struct uath_data *
316 uath_getbuf(struct uath_softc *);
317static int uath_newstate(struct ieee80211vap *, enum ieee80211_state,
318 int);
319static int uath_set_key(struct uath_softc *,
320 const struct ieee80211_key *, int);
321static int uath_set_keys(struct uath_softc *, struct ieee80211vap *);
322static void uath_sysctl_node(struct uath_softc *);
323
324static int
325uath_match(device_t dev)
326{
327 struct usb_attach_arg *uaa = device_get_ivars(dev);
328
329 if (uaa->usb_mode != USB_MODE_HOST)
330 return (ENXIO);
331 if (uaa->info.bConfigIndex != UATH_CONFIG_INDEX)
332 return (ENXIO);
333 if (uaa->info.bIfaceIndex != UATH_IFACE_INDEX)
334 return (ENXIO);
335
336 return (usbd_lookup_id_by_uaa(uath_devs, sizeof(uath_devs), uaa));
337}
338
339static int
340uath_attach(device_t dev)
341{
342 struct uath_softc *sc = device_get_softc(dev);
343 struct usb_attach_arg *uaa = device_get_ivars(dev);
344 struct ieee80211com *ic;
345 struct ifnet *ifp;
346 uint8_t bands, iface_index = UATH_IFACE_INDEX; /* XXX */
347 usb_error_t error;
348 uint8_t macaddr[IEEE80211_ADDR_LEN];
349
350 sc->sc_dev = dev;
351 sc->sc_udev = uaa->device;
352#ifdef UATH_DEBUG
353 sc->sc_debug = uath_debug;
354#endif
355 device_set_usb_desc(dev);
356
357 /*
358 * Only post-firmware devices here.
359 */
360 mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
361 MTX_DEF);
362 callout_init(&sc->stat_ch, 0);
363 callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
364
365 /*
366 * Allocate xfers for firmware commands.
367 */
368 error = uath_alloc_cmd_list(sc, sc->sc_cmd, UATH_CMD_LIST_COUNT,
369 UATH_MAX_CMDSZ);
370 if (error != 0) {
371 device_printf(sc->sc_dev,
372 "could not allocate Tx command list\n");
373 goto fail;
374 }
375
376 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
377 uath_usbconfig, UATH_N_XFERS, sc, &sc->sc_mtx);
378 if (error) {
379 device_printf(dev, "could not allocate USB transfers, "
380 "err=%s\n", usbd_errstr(error));
381 goto fail1;
382 }
383
384 /*
385 * We're now ready to send+receive firmware commands.
386 */
387 UATH_LOCK(sc);
388 error = uath_host_available(sc);
389 if (error != 0) {
390 device_printf(sc->sc_dev, "could not initialize adapter\n");
391 goto fail3;
392 }
393 error = uath_get_devcap(sc);
394 if (error != 0) {
395 device_printf(sc->sc_dev,
396 "could not get device capabilities\n");
397 goto fail3;
398 }
399 UATH_UNLOCK(sc);
400
401 /* Create device sysctl node. */
402 uath_sysctl_node(sc);
403
404 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
405 if (ifp == NULL) {
406 device_printf(sc->sc_dev, "can not allocate ifnet\n");
407 error = ENXIO;
408 goto fail2;
409 }
410
411 UATH_LOCK(sc);
412 error = uath_get_devstatus(sc, macaddr);
413 if (error != 0) {
414 device_printf(sc->sc_dev, "could not get device status\n");
415 goto fail4;
416 }
417
418 /*
419 * Allocate xfers for Rx/Tx data pipes.
420 */
421 error = uath_alloc_rx_data_list(sc);
422 if (error != 0) {
423 device_printf(sc->sc_dev, "could not allocate Rx data list\n");
424 goto fail4;
425 }
426 error = uath_alloc_tx_data_list(sc);
427 if (error != 0) {
428 device_printf(sc->sc_dev, "could not allocate Tx data list\n");
429 goto fail4;
430 }
431 UATH_UNLOCK(sc);
432
433 ifp->if_softc = sc;
434 if_initname(ifp, "uath", device_get_unit(sc->sc_dev));
435 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
436 ifp->if_init = uath_init;
437 ifp->if_ioctl = uath_ioctl;
438 ifp->if_start = uath_start;
439 /* XXX UATH_TX_DATA_LIST_COUNT */
440 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
441 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
442 IFQ_SET_READY(&ifp->if_snd);
443
444 ic = ifp->if_l2com;
445 ic->ic_ifp = ifp;
446 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
447 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
448
449 /* set device capabilities */
450 ic->ic_caps =
451 IEEE80211_C_STA | /* station mode */
452 IEEE80211_C_MONITOR | /* monitor mode supported */
453 IEEE80211_C_TXPMGT | /* tx power management */
454 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
455 IEEE80211_C_SHSLOT | /* short slot time supported */
456 IEEE80211_C_WPA | /* 802.11i */
457 IEEE80211_C_BGSCAN | /* capable of bg scanning */
458 IEEE80211_C_TXFRAG; /* handle tx frags */
459
460 /* put a regulatory domain to reveal informations. */
461 uath_regdomain = sc->sc_devcap.regDomain;
462
463 bands = 0;
464 setbit(&bands, IEEE80211_MODE_11B);
465 setbit(&bands, IEEE80211_MODE_11G);
466 if ((sc->sc_devcap.analog5GhzRevision & 0xf0) == 0x30)
467 setbit(&bands, IEEE80211_MODE_11A);
468 /* XXX turbo */
469 ieee80211_init_channels(ic, NULL, &bands);
470
471 ieee80211_ifattach(ic, macaddr);
472 ic->ic_raw_xmit = uath_raw_xmit;
473 ic->ic_scan_start = uath_scan_start;
474 ic->ic_scan_end = uath_scan_end;
475 ic->ic_set_channel = uath_set_channel;
476
477 ic->ic_vap_create = uath_vap_create;
478 ic->ic_vap_delete = uath_vap_delete;
479 ic->ic_update_mcast = uath_update_mcast;
480 ic->ic_update_promisc = uath_update_promisc;
481
482 ieee80211_radiotap_attach(ic,
483 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
484 UATH_TX_RADIOTAP_PRESENT,
485 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
486 UATH_RX_RADIOTAP_PRESENT);
487
488 if (bootverbose)
489 ieee80211_announce(ic);
490
491 return (0);
492
493fail4: if_free(ifp);
494fail3: UATH_UNLOCK(sc);
495fail2: usbd_transfer_unsetup(sc->sc_xfer, UATH_N_XFERS);
496fail1: uath_free_cmd_list(sc, sc->sc_cmd, UATH_CMD_LIST_COUNT);
497fail:
498 return (error);
499}
500
501static int
502uath_detach(device_t dev)
503{
504 struct uath_softc *sc = device_get_softc(dev);
505 struct ifnet *ifp = sc->sc_ifp;
506 struct ieee80211com *ic = ifp->if_l2com;
507
508 if (!device_is_attached(dev))
509 return (0);
510
511 UATH_LOCK(sc);
512 sc->sc_flags |= UATH_FLAG_INVALID;
513 UATH_UNLOCK(sc);
514
515 ieee80211_ifdetach(ic);
516 uath_stop(ifp);
517
518 callout_drain(&sc->stat_ch);
519 callout_drain(&sc->watchdog_ch);
520
521 usbd_transfer_unsetup(sc->sc_xfer, UATH_N_XFERS);
522
523 /* free buffers */
524 UATH_LOCK(sc);
525 uath_free_rx_data_list(sc);
526 uath_free_tx_data_list(sc);
527 uath_free_cmd_list(sc, sc->sc_cmd, UATH_CMD_LIST_COUNT);
528 UATH_UNLOCK(sc);
529
530 if_free(ifp);
531 mtx_destroy(&sc->sc_mtx);
532 return (0);
533}
534
535static void
536uath_free_cmd_list(struct uath_softc *sc, struct uath_cmd cmds[], int ncmd)
537{
538 int i;
539
540 for (i = 0; i < ncmd; i++)
541 if (cmds[i].buf != NULL)
542 free(cmds[i].buf, M_USBDEV);
543}
544
545static int
546uath_alloc_cmd_list(struct uath_softc *sc, struct uath_cmd cmds[],
547 int ncmd, int maxsz)
548{
549 int i, error;
550
551 STAILQ_INIT(&sc->sc_cmd_active);
552 STAILQ_INIT(&sc->sc_cmd_pending);
553 STAILQ_INIT(&sc->sc_cmd_waiting);
554 STAILQ_INIT(&sc->sc_cmd_inactive);
555
556 for (i = 0; i < ncmd; i++) {
557 struct uath_cmd *cmd = &cmds[i];
558
559 cmd->sc = sc; /* backpointer for callbacks */
560 cmd->msgid = i;
f6807fa3 561 cmd->buf = malloc(maxsz, M_USBDEV, M_WAITOK);
12bd3c8b
SW
562 if (cmd->buf == NULL) {
563 device_printf(sc->sc_dev,
564 "could not allocate xfer buffer\n");
565 error = ENOMEM;
566 goto fail;
567 }
568 STAILQ_INSERT_TAIL(&sc->sc_cmd_inactive, cmd, next);
569 UATH_STAT_INC(sc, st_cmd_inactive);
570 }
571 return (0);
572
573fail: uath_free_cmd_list(sc, cmds, ncmd);
574 return (error);
575}
576
577static int
578uath_host_available(struct uath_softc *sc)
579{
580 struct uath_cmd_host_available setup;
581
582 UATH_ASSERT_LOCKED(sc);
583
584 /* inform target the host is available */
585 setup.sw_ver_major = htobe32(ATH_SW_VER_MAJOR);
586 setup.sw_ver_minor = htobe32(ATH_SW_VER_MINOR);
587 setup.sw_ver_patch = htobe32(ATH_SW_VER_PATCH);
588 setup.sw_ver_build = htobe32(ATH_SW_VER_BUILD);
589 return uath_cmd_read(sc, WDCMSG_HOST_AVAILABLE,
590 &setup, sizeof setup, NULL, 0, 0);
591}
592
593#ifdef UATH_DEBUG
594static void
595uath_dump_cmd(const uint8_t *buf, int len, char prefix)
596{
597 const char *sep = "";
598 int i;
599
600 for (i = 0; i < len; i++) {
601 if ((i % 16) == 0) {
602 printf("%s%c ", sep, prefix);
603 sep = "\n";
604 }
605 else if ((i % 4) == 0)
606 printf(" ");
607 printf("%02x", buf[i]);
608 }
609 printf("\n");
610}
611
612static const char *
613uath_codename(int code)
614{
615#define N(a) (sizeof(a)/sizeof(a[0]))
616 static const char *names[] = {
617 "0x00",
618 "HOST_AVAILABLE",
619 "BIND",
620 "TARGET_RESET",
621 "TARGET_GET_CAPABILITY",
622 "TARGET_SET_CONFIG",
623 "TARGET_GET_STATUS",
624 "TARGET_GET_STATS",
625 "TARGET_START",
626 "TARGET_STOP",
627 "TARGET_ENABLE",
628 "TARGET_DISABLE",
629 "CREATE_CONNECTION",
630 "UPDATE_CONNECT_ATTR",
631 "DELETE_CONNECT",
632 "SEND",
633 "FLUSH",
634 "STATS_UPDATE",
635 "BMISS",
636 "DEVICE_AVAIL",
637 "SEND_COMPLETE",
638 "DATA_AVAIL",
639 "SET_PWR_MODE",
640 "BMISS_ACK",
641 "SET_LED_STEADY",
642 "SET_LED_BLINK",
643 "SETUP_BEACON_DESC",
644 "BEACON_INIT",
645 "RESET_KEY_CACHE",
646 "RESET_KEY_CACHE_ENTRY",
647 "SET_KEY_CACHE_ENTRY",
648 "SET_DECOMP_MASK",
649 "SET_REGULATORY_DOMAIN",
650 "SET_LED_STATE",
651 "WRITE_ASSOCID",
652 "SET_STA_BEACON_TIMERS",
653 "GET_TSF",
654 "RESET_TSF",
655 "SET_ADHOC_MODE",
656 "SET_BASIC_RATE",
657 "MIB_CONTROL",
658 "GET_CHANNEL_DATA",
659 "GET_CUR_RSSI",
660 "SET_ANTENNA_SWITCH",
661 "0x2c", "0x2d", "0x2e",
662 "USE_SHORT_SLOT_TIME",
663 "SET_POWER_MODE",
664 "SETUP_PSPOLL_DESC",
665 "SET_RX_MULTICAST_FILTER",
666 "RX_FILTER",
667 "PER_CALIBRATION",
668 "RESET",
669 "DISABLE",
670 "PHY_DISABLE",
671 "SET_TX_POWER_LIMIT",
672 "SET_TX_QUEUE_PARAMS",
673 "SETUP_TX_QUEUE",
674 "RELEASE_TX_QUEUE",
675 };
676 static char buf[8];
677
678 if (code < N(names))
679 return names[code];
680 if (code == WDCMSG_SET_DEFAULT_KEY)
681 return "SET_DEFAULT_KEY";
682 snprintf(buf, sizeof(buf), "0x%02x", code);
683 return buf;
684#undef N
685}
686#endif
687
688/*
689 * Low-level function to send read or write commands to the firmware.
690 */
691static int
692uath_cmdsend(struct uath_softc *sc, uint32_t code, const void *idata, int ilen,
693 void *odata, int olen, int flags)
694{
695 struct uath_cmd_hdr *hdr;
696 struct uath_cmd *cmd;
697 int error;
698
699 UATH_ASSERT_LOCKED(sc);
700
701 /* grab a xfer */
702 cmd = uath_get_cmdbuf(sc);
703 if (cmd == NULL) {
704 device_printf(sc->sc_dev, "%s: empty inactive queue\n",
705 __func__);
706 return (ENOBUFS);
707 }
708 cmd->flags = flags;
709 /* always bulk-out a multiple of 4 bytes */
710 cmd->buflen = roundup2(sizeof(struct uath_cmd_hdr) + ilen, 4);
711
712 hdr = (struct uath_cmd_hdr *)cmd->buf;
713 memset(hdr, 0, sizeof(struct uath_cmd_hdr));
714 hdr->len = htobe32(cmd->buflen);
715 hdr->code = htobe32(code);
716 hdr->msgid = cmd->msgid; /* don't care about endianness */
717 hdr->magic = htobe32((cmd->flags & UATH_CMD_FLAG_MAGIC) ? 1 << 24 : 0);
718 memcpy((uint8_t *)(hdr + 1), idata, ilen);
719
720#ifdef UATH_DEBUG
721 if (sc->sc_debug & UATH_DEBUG_CMDS) {
722 printf("%s: send %s [flags 0x%x] olen %d\n",
723 __func__, uath_codename(code), cmd->flags, olen);
724 if (sc->sc_debug & UATH_DEBUG_CMDS_DUMP)
725 uath_dump_cmd(cmd->buf, cmd->buflen, '+');
726 }
727#endif
728 cmd->odata = odata;
729 KASSERT(odata == NULL ||
730 olen < UATH_MAX_CMDSZ - sizeof(*hdr) + sizeof(uint32_t),
731 ("odata %p olen %u", odata, olen));
732 cmd->olen = olen;
733
734 STAILQ_INSERT_TAIL(&sc->sc_cmd_pending, cmd, next);
735 UATH_STAT_INC(sc, st_cmd_pending);
736 usbd_transfer_start(sc->sc_xfer[UATH_INTR_TX]);
737
738 if (cmd->flags & UATH_CMD_FLAG_READ) {
739 usbd_transfer_start(sc->sc_xfer[UATH_INTR_RX]);
740
741 /* wait at most two seconds for command reply */
742 error = mtx_sleep(cmd, &sc->sc_mtx, 0, "uathcmd", 2 * hz);
743 cmd->odata = NULL; /* in case reply comes too late */
744 if (error != 0) {
745 device_printf(sc->sc_dev, "timeout waiting for reply "
746 "to cmd 0x%x (%u)\n", code, code);
747 } else if (cmd->olen != olen) {
748 device_printf(sc->sc_dev, "unexpected reply data count "
749 "to cmd 0x%x (%u), got %u, expected %u\n",
750 code, code, cmd->olen, olen);
751 error = EINVAL;
752 }
753 return (error);
754 }
755 return (0);
756}
757
758static int
759uath_cmd_read(struct uath_softc *sc, uint32_t code, const void *idata,
760 int ilen, void *odata, int olen, int flags)
761{
762
763 flags |= UATH_CMD_FLAG_READ;
764 return uath_cmdsend(sc, code, idata, ilen, odata, olen, flags);
765}
766
767static int
768uath_cmd_write(struct uath_softc *sc, uint32_t code, const void *data, int len,
769 int flags)
770{
771
772 flags &= ~UATH_CMD_FLAG_READ;
773 return uath_cmdsend(sc, code, data, len, NULL, 0, flags);
774}
775
776static struct uath_cmd *
777uath_get_cmdbuf(struct uath_softc *sc)
778{
779 struct uath_cmd *uc;
780
781 UATH_ASSERT_LOCKED(sc);
782
783 uc = STAILQ_FIRST(&sc->sc_cmd_inactive);
784 if (uc != NULL) {
785 STAILQ_REMOVE_HEAD(&sc->sc_cmd_inactive, next);
786 UATH_STAT_DEC(sc, st_cmd_inactive);
787 } else
788 uc = NULL;
789 if (uc == NULL)
790 DPRINTF(sc, UATH_DEBUG_XMIT, "%s: %s\n", __func__,
791 "out of command xmit buffers");
792 return (uc);
793}
794
795/*
796 * This function is called periodically (every second) when associated to
797 * query device statistics.
798 */
799static void
800uath_stat(void *arg)
801{
802 struct uath_softc *sc = arg;
803 int error;
804
805 UATH_LOCK(sc);
806 /*
807 * Send request for statistics asynchronously. The timer will be
808 * restarted when we'll get the stats notification.
809 */
810 error = uath_cmd_write(sc, WDCMSG_TARGET_GET_STATS, NULL, 0,
811 UATH_CMD_FLAG_ASYNC);
812 if (error != 0) {
813 device_printf(sc->sc_dev,
814 "could not query stats, error %d\n", error);
815 }
816 UATH_UNLOCK(sc);
817}
818
819static int
820uath_get_capability(struct uath_softc *sc, uint32_t cap, uint32_t *val)
821{
822 int error;
823
824 cap = htobe32(cap);
825 error = uath_cmd_read(sc, WDCMSG_TARGET_GET_CAPABILITY,
826 &cap, sizeof cap, val, sizeof(uint32_t), UATH_CMD_FLAG_MAGIC);
827 if (error != 0) {
828 device_printf(sc->sc_dev, "could not read capability %u\n",
829 be32toh(cap));
830 return (error);
831 }
832 *val = be32toh(*val);
833 return (error);
834}
835
836static int
837uath_get_devcap(struct uath_softc *sc)
838{
839#define GETCAP(x, v) do { \
840 error = uath_get_capability(sc, x, &v); \
841 if (error != 0) \
842 return (error); \
843 DPRINTF(sc, UATH_DEBUG_DEVCAP, \
844 "%s: %s=0x%08x\n", __func__, #x, v); \
845} while (0)
846 struct uath_devcap *cap = &sc->sc_devcap;
847 int error;
848
849 /* collect device capabilities */
850 GETCAP(CAP_TARGET_VERSION, cap->targetVersion);
851 GETCAP(CAP_TARGET_REVISION, cap->targetRevision);
852 GETCAP(CAP_MAC_VERSION, cap->macVersion);
853 GETCAP(CAP_MAC_REVISION, cap->macRevision);
854 GETCAP(CAP_PHY_REVISION, cap->phyRevision);
855 GETCAP(CAP_ANALOG_5GHz_REVISION, cap->analog5GhzRevision);
856 GETCAP(CAP_ANALOG_2GHz_REVISION, cap->analog2GhzRevision);
857
858 GETCAP(CAP_REG_DOMAIN, cap->regDomain);
859 GETCAP(CAP_REG_CAP_BITS, cap->regCapBits);
860#if 0
861 /* NB: not supported in rev 1.5 */
862 GETCAP(CAP_COUNTRY_CODE, cap->countryCode);
863#endif
864 GETCAP(CAP_WIRELESS_MODES, cap->wirelessModes);
865 GETCAP(CAP_CHAN_SPREAD_SUPPORT, cap->chanSpreadSupport);
866 GETCAP(CAP_COMPRESS_SUPPORT, cap->compressSupport);
867 GETCAP(CAP_BURST_SUPPORT, cap->burstSupport);
868 GETCAP(CAP_FAST_FRAMES_SUPPORT, cap->fastFramesSupport);
869 GETCAP(CAP_CHAP_TUNING_SUPPORT, cap->chapTuningSupport);
870 GETCAP(CAP_TURBOG_SUPPORT, cap->turboGSupport);
871 GETCAP(CAP_TURBO_PRIME_SUPPORT, cap->turboPrimeSupport);
872 GETCAP(CAP_DEVICE_TYPE, cap->deviceType);
873 GETCAP(CAP_WME_SUPPORT, cap->wmeSupport);
874 GETCAP(CAP_TOTAL_QUEUES, cap->numTxQueues);
875 GETCAP(CAP_CONNECTION_ID_MAX, cap->connectionIdMax);
876
877 GETCAP(CAP_LOW_5GHZ_CHAN, cap->low5GhzChan);
878 GETCAP(CAP_HIGH_5GHZ_CHAN, cap->high5GhzChan);
879 GETCAP(CAP_LOW_2GHZ_CHAN, cap->low2GhzChan);
880 GETCAP(CAP_HIGH_2GHZ_CHAN, cap->high2GhzChan);
881 GETCAP(CAP_TWICE_ANTENNAGAIN_5G, cap->twiceAntennaGain5G);
882 GETCAP(CAP_TWICE_ANTENNAGAIN_2G, cap->twiceAntennaGain2G);
883
884 GETCAP(CAP_CIPHER_AES_CCM, cap->supportCipherAES_CCM);
885 GETCAP(CAP_CIPHER_TKIP, cap->supportCipherTKIP);
886 GETCAP(CAP_MIC_TKIP, cap->supportMicTKIP);
887
888 cap->supportCipherWEP = 1; /* NB: always available */
889
890 return (0);
891}
892
893static int
894uath_get_devstatus(struct uath_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
895{
896 int error;
897
898 /* retrieve MAC address */
899 error = uath_get_status(sc, ST_MAC_ADDR, macaddr, IEEE80211_ADDR_LEN);
900 if (error != 0) {
901 device_printf(sc->sc_dev, "could not read MAC address\n");
902 return (error);
903 }
904
905 error = uath_get_status(sc, ST_SERIAL_NUMBER,
906 &sc->sc_serial[0], sizeof(sc->sc_serial));
907 if (error != 0) {
908 device_printf(sc->sc_dev,
909 "could not read device serial number\n");
910 return (error);
911 }
912 return (0);
913}
914
915static int
916uath_get_status(struct uath_softc *sc, uint32_t which, void *odata, int olen)
917{
918 int error;
919
920 which = htobe32(which);
921 error = uath_cmd_read(sc, WDCMSG_TARGET_GET_STATUS,
922 &which, sizeof(which), odata, olen, UATH_CMD_FLAG_MAGIC);
923 if (error != 0)
924 device_printf(sc->sc_dev,
925 "could not read EEPROM offset 0x%02x\n", be32toh(which));
926 return (error);
927}
928
929static void
930uath_free_data_list(struct uath_softc *sc, struct uath_data data[], int ndata,
931 int fillmbuf)
932{
933 int i;
934
935 for (i = 0; i < ndata; i++) {
936 struct uath_data *dp = &data[i];
937
938 if (fillmbuf == 1) {
939 if (dp->m != NULL) {
940 m_freem(dp->m);
941 dp->m = NULL;
942 dp->buf = NULL;
943 }
944 } else {
945 if (dp->buf != NULL) {
946 free(dp->buf, M_USBDEV);
947 dp->buf = NULL;
948 }
949 }
950#ifdef UATH_DEBUG
951 if (dp->ni != NULL)
952 device_printf(sc->sc_dev, "Node isn't NULL\n");
953#endif
954 }
955}
956
957static int
958uath_alloc_data_list(struct uath_softc *sc, struct uath_data data[],
959 int ndata, int maxsz, int fillmbuf)
960{
961 int i, error;
962
963 for (i = 0; i < ndata; i++) {
964 struct uath_data *dp = &data[i];
965
966 dp->sc = sc;
967 if (fillmbuf) {
968 /* XXX check maxsz */
969 dp->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
970 if (dp->m == NULL) {
971 device_printf(sc->sc_dev,
972 "could not allocate rx mbuf\n");
973 error = ENOMEM;
974 goto fail;
975 }
976 dp->buf = mtod(dp->m, uint8_t *);
977 } else {
978 dp->m = NULL;
f6807fa3 979 dp->buf = malloc(maxsz, M_USBDEV, M_WAITOK);
12bd3c8b
SW
980 if (dp->buf == NULL) {
981 device_printf(sc->sc_dev,
982 "could not allocate buffer\n");
983 error = ENOMEM;
984 goto fail;
985 }
986 }
987 dp->ni = NULL;
988 }
989
990 return (0);
991
992fail: uath_free_data_list(sc, data, ndata, fillmbuf);
993 return (error);
994}
995
996static int
997uath_alloc_rx_data_list(struct uath_softc *sc)
998{
999 int error, i;
1000
1001 /* XXX is it enough to store the RX packet with MCLBYTES bytes? */
1002 error = uath_alloc_data_list(sc,
1003 sc->sc_rx, UATH_RX_DATA_LIST_COUNT, MCLBYTES,
1004 1 /* setup mbufs */);
1005 if (error != 0)
1006 return (error);
1007
1008 STAILQ_INIT(&sc->sc_rx_active);
1009 STAILQ_INIT(&sc->sc_rx_inactive);
1010
1011 for (i = 0; i < UATH_RX_DATA_LIST_COUNT; i++) {
1012 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i],
1013 next);
1014 UATH_STAT_INC(sc, st_rx_inactive);
1015 }
1016
1017 return (0);
1018}
1019
1020static int
1021uath_alloc_tx_data_list(struct uath_softc *sc)
1022{
1023 int error, i;
1024
1025 error = uath_alloc_data_list(sc,
1026 sc->sc_tx, UATH_TX_DATA_LIST_COUNT, UATH_MAX_TXBUFSZ,
1027 0 /* no mbufs */);
1028 if (error != 0)
1029 return (error);
1030
1031 STAILQ_INIT(&sc->sc_tx_active);
1032 STAILQ_INIT(&sc->sc_tx_inactive);
1033 STAILQ_INIT(&sc->sc_tx_pending);
1034
1035 for (i = 0; i < UATH_TX_DATA_LIST_COUNT; i++) {
1036 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i],
1037 next);
1038 UATH_STAT_INC(sc, st_tx_inactive);
1039 }
1040
1041 return (0);
1042}
1043
1044static void
1045uath_free_rx_data_list(struct uath_softc *sc)
1046{
1047
1048 STAILQ_INIT(&sc->sc_rx_active);
1049 STAILQ_INIT(&sc->sc_rx_inactive);
1050
1051 uath_free_data_list(sc, sc->sc_rx, UATH_RX_DATA_LIST_COUNT,
1052 1 /* free mbufs */);
1053}
1054
1055static void
1056uath_free_tx_data_list(struct uath_softc *sc)
1057{
1058
1059 STAILQ_INIT(&sc->sc_tx_active);
1060 STAILQ_INIT(&sc->sc_tx_inactive);
1061 STAILQ_INIT(&sc->sc_tx_pending);
1062
1063 uath_free_data_list(sc, sc->sc_tx, UATH_TX_DATA_LIST_COUNT,
1064 0 /* no mbufs */);
1065}
1066
1067static struct ieee80211vap *
1068uath_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
1069 enum ieee80211_opmode opmode, int flags,
1070 const uint8_t bssid[IEEE80211_ADDR_LEN],
1071 const uint8_t mac[IEEE80211_ADDR_LEN])
1072{
1073 struct uath_vap *uvp;
1074 struct ieee80211vap *vap;
1075
1076 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
1077 return (NULL);
1078 uvp = (struct uath_vap *) malloc(sizeof(struct uath_vap),
f6807fa3 1079 M_80211_VAP, M_WAITOK | M_ZERO);
12bd3c8b
SW
1080 if (uvp == NULL)
1081 return (NULL);
1082 vap = &uvp->vap;
1083 /* enable s/w bmiss handling for sta mode */
1084 ieee80211_vap_setup(ic, vap, name, unit, opmode,
1085 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
1086
1087 /* override state transition machine */
1088 uvp->newstate = vap->iv_newstate;
1089 vap->iv_newstate = uath_newstate;
1090
1091 /* complete setup */
1092 ieee80211_vap_attach(vap, ieee80211_media_change,
1093 ieee80211_media_status);
1094 ic->ic_opmode = opmode;
1095 return (vap);
1096}
1097
1098static void
1099uath_vap_delete(struct ieee80211vap *vap)
1100{
1101 struct uath_vap *uvp = UATH_VAP(vap);
1102
1103 ieee80211_vap_detach(vap);
1104 free(uvp, M_80211_VAP);
1105}
1106
1107static int
1108uath_init_locked(void *arg)
1109{
1110 struct uath_softc *sc = arg;
1111 struct ifnet *ifp = sc->sc_ifp;
1112 struct ieee80211com *ic = ifp->if_l2com;
1113 uint32_t val;
1114 int error;
1115
1116 UATH_ASSERT_LOCKED(sc);
1117
1118 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1119 uath_stop_locked(ifp);
1120
1121 /* reset variables */
1122 sc->sc_intrx_nextnum = sc->sc_msgid = 0;
1123
1124 val = htobe32(0);
1125 uath_cmd_write(sc, WDCMSG_BIND, &val, sizeof val, 0);
1126
1127 /* set MAC address */
1128 uath_config_multi(sc, CFG_MAC_ADDR, IF_LLADDR(ifp), IEEE80211_ADDR_LEN);
1129
1130 /* XXX honor net80211 state */
1131 uath_config(sc, CFG_RATE_CONTROL_ENABLE, 0x00000001);
1132 uath_config(sc, CFG_DIVERSITY_CTL, 0x00000001);
1133 uath_config(sc, CFG_ABOLT, 0x0000003f);
1134 uath_config(sc, CFG_WME_ENABLED, 0x00000001);
1135
1136 uath_config(sc, CFG_SERVICE_TYPE, 1);
1137 uath_config(sc, CFG_TP_SCALE, 0x00000000);
1138 uath_config(sc, CFG_TPC_HALF_DBM5, 0x0000003c);
1139 uath_config(sc, CFG_TPC_HALF_DBM2, 0x0000003c);
1140 uath_config(sc, CFG_OVERRD_TX_POWER, 0x00000000);
1141 uath_config(sc, CFG_GMODE_PROTECTION, 0x00000000);
1142 uath_config(sc, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003);
1143 uath_config(sc, CFG_PROTECTION_TYPE, 0x00000000);
1144 uath_config(sc, CFG_MODE_CTS, 0x00000002);
1145
1146 error = uath_cmd_read(sc, WDCMSG_TARGET_START, NULL, 0,
1147 &val, sizeof(val), UATH_CMD_FLAG_MAGIC);
1148 if (error) {
1149 device_printf(sc->sc_dev,
1150 "could not start target, error %d\n", error);
1151 goto fail;
1152 }
1153 DPRINTF(sc, UATH_DEBUG_INIT, "%s returns handle: 0x%x\n",
1154 uath_codename(WDCMSG_TARGET_START), be32toh(val));
1155
1156 /* set default channel */
1157 error = uath_switch_channel(sc, ic->ic_curchan);
1158 if (error) {
1159 device_printf(sc->sc_dev,
1160 "could not switch channel, error %d\n", error);
1161 goto fail;
1162 }
1163
1164 val = htobe32(TARGET_DEVICE_AWAKE);
1165 uath_cmd_write(sc, WDCMSG_SET_PWR_MODE, &val, sizeof val, 0);
1166 /* XXX? check */
1167 uath_cmd_write(sc, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0);
1168
1169 usbd_transfer_start(sc->sc_xfer[UATH_BULK_RX]);
1170 /* enable Rx */
1171 uath_set_rxfilter(sc, 0x0, UATH_FILTER_OP_INIT);
1172 uath_set_rxfilter(sc,
1173 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST |
1174 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON,
1175 UATH_FILTER_OP_SET);
1176
1177 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1178 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1179 sc->sc_flags |= UATH_FLAG_INITDONE;
1180
1181 callout_reset(&sc->watchdog_ch, hz, uath_watchdog, sc);
1182
1183 return (0);
1184
1185fail:
1186 uath_stop_locked(ifp);
1187 return (error);
1188}
1189
1190static void
1191uath_init(void *arg)
1192{
1193 struct uath_softc *sc = arg;
1194
1195 UATH_LOCK(sc);
1196 (void)uath_init_locked(sc);
1197 UATH_UNLOCK(sc);
1198}
1199
1200static void
1201uath_stop_locked(struct ifnet *ifp)
1202{
1203 struct uath_softc *sc = ifp->if_softc;
1204
1205 UATH_ASSERT_LOCKED(sc);
1206
1207 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1208 sc->sc_flags &= ~UATH_FLAG_INITDONE;
1209
1210 callout_stop(&sc->stat_ch);
1211 callout_stop(&sc->watchdog_ch);
1212 sc->sc_tx_timer = 0;
1213 /* abort pending transmits */
1214 uath_abort_xfers(sc);
1215 /* flush data & control requests into the target */
1216 (void)uath_flush(sc);
1217 /* set a LED status to the disconnected. */
1218 uath_set_ledstate(sc, 0);
1219 /* stop the target */
1220 uath_cmd_write(sc, WDCMSG_TARGET_STOP, NULL, 0, 0);
1221}
1222
1223static void
1224uath_stop(struct ifnet *ifp)
1225{
1226 struct uath_softc *sc = ifp->if_softc;
1227
1228 UATH_LOCK(sc);
1229 uath_stop_locked(ifp);
1230 UATH_UNLOCK(sc);
1231}
1232
1233static int
1234uath_config(struct uath_softc *sc, uint32_t reg, uint32_t val)
1235{
1236 struct uath_write_mac write;
1237 int error;
1238
1239 write.reg = htobe32(reg);
1240 write.len = htobe32(0); /* 0 = single write */
1241 *(uint32_t *)write.data = htobe32(val);
1242
1243 error = uath_cmd_write(sc, WDCMSG_TARGET_SET_CONFIG, &write,
1244 3 * sizeof (uint32_t), 0);
1245 if (error != 0) {
1246 device_printf(sc->sc_dev, "could not write register 0x%02x\n",
1247 reg);
1248 }
1249 return (error);
1250}
1251
1252static int
1253uath_config_multi(struct uath_softc *sc, uint32_t reg, const void *data,
1254 int len)
1255{
1256 struct uath_write_mac write;
1257 int error;
1258
1259 write.reg = htobe32(reg);
1260 write.len = htobe32(len);
1261 bcopy(data, write.data, len);
1262
1263 /* properly handle the case where len is zero (reset) */
1264 error = uath_cmd_write(sc, WDCMSG_TARGET_SET_CONFIG, &write,
1265 (len == 0) ? sizeof (uint32_t) : 2 * sizeof (uint32_t) + len, 0);
1266 if (error != 0) {
1267 device_printf(sc->sc_dev,
1268 "could not write %d bytes to register 0x%02x\n", len, reg);
1269 }
1270 return (error);
1271}
1272
1273static int
1274uath_switch_channel(struct uath_softc *sc, struct ieee80211_channel *c)
1275{
1276 int error;
1277
1278 UATH_ASSERT_LOCKED(sc);
1279
1280 /* set radio frequency */
1281 error = uath_set_chan(sc, c);
1282 if (error) {
1283 device_printf(sc->sc_dev,
1284 "could not set channel, error %d\n", error);
1285 goto failed;
1286 }
1287 /* reset Tx rings */
1288 error = uath_reset_tx_queues(sc);
1289 if (error) {
1290 device_printf(sc->sc_dev,
1291 "could not reset Tx queues, error %d\n", error);
1292 goto failed;
1293 }
1294 /* set Tx rings WME properties */
1295 error = uath_wme_init(sc);
1296 if (error) {
1297 device_printf(sc->sc_dev,
1298 "could not init Tx queues, error %d\n", error);
1299 goto failed;
1300 }
1301 error = uath_set_ledstate(sc, 0);
1302 if (error) {
1303 device_printf(sc->sc_dev,
1304 "could not set led state, error %d\n", error);
1305 goto failed;
1306 }
1307 error = uath_flush(sc);
1308 if (error) {
1309 device_printf(sc->sc_dev,
1310 "could not flush pipes, error %d\n", error);
1311 goto failed;
1312 }
1313failed:
1314 return (error);
1315}
1316
1317static int
1318uath_set_rxfilter(struct uath_softc *sc, uint32_t bits, uint32_t op)
1319{
1320 struct uath_cmd_rx_filter rxfilter;
1321
1322 rxfilter.bits = htobe32(bits);
1323 rxfilter.op = htobe32(op);
1324
1325 DPRINTF(sc, UATH_DEBUG_RECV | UATH_DEBUG_RECV_ALL,
1326 "setting Rx filter=0x%x flags=0x%x\n", bits, op);
1327 return uath_cmd_write(sc, WDCMSG_RX_FILTER, &rxfilter,
1328 sizeof rxfilter, 0);
1329}
1330
1331static void
1332uath_watchdog(void *arg)
1333{
1334 struct uath_softc *sc = arg;
1335 struct ifnet *ifp = sc->sc_ifp;
1336
1337 if (sc->sc_tx_timer > 0) {
1338 if (--sc->sc_tx_timer == 0) {
1339 device_printf(sc->sc_dev, "device timeout\n");
1340 /*uath_init(ifp); XXX needs a process context! */
1341 ifp->if_oerrors++;
1342 return;
1343 }
1344 callout_reset(&sc->watchdog_ch, hz, uath_watchdog, sc);
1345 }
1346}
1347
1348static void
1349uath_abort_xfers(struct uath_softc *sc)
1350{
1351 int i;
1352
1353 UATH_ASSERT_LOCKED(sc);
1354 /* abort any pending transfers */
1355 for (i = 0; i < UATH_N_XFERS; i++)
1356 usbd_transfer_stop(sc->sc_xfer[i]);
1357}
1358
1359static int
1360uath_flush(struct uath_softc *sc)
1361{
1362 int error;
1363
1364 error = uath_dataflush(sc);
1365 if (error != 0)
1366 goto failed;
1367
1368 error = uath_cmdflush(sc);
1369 if (error != 0)
1370 goto failed;
1371
1372failed:
1373 return (error);
1374}
1375
1376static int
1377uath_cmdflush(struct uath_softc *sc)
1378{
1379
1380 return uath_cmd_write(sc, WDCMSG_FLUSH, NULL, 0, 0);
1381}
1382
1383static int
1384uath_dataflush(struct uath_softc *sc)
1385{
1386 struct uath_data *data;
1387 struct uath_chunk *chunk;
1388 struct uath_tx_desc *desc;
1389
1390 UATH_ASSERT_LOCKED(sc);
1391
1392 data = uath_getbuf(sc);
1393 if (data == NULL)
1394 return (ENOBUFS);
1395 data->buflen = sizeof(struct uath_chunk) + sizeof(struct uath_tx_desc);
1396 data->m = NULL;
1397 data->ni = NULL;
1398 chunk = (struct uath_chunk *)data->buf;
1399 desc = (struct uath_tx_desc *)(chunk + 1);
1400
1401 /* one chunk only */
1402 chunk->seqnum = 0;
1403 chunk->flags = UATH_CFLAGS_FINAL;
1404 chunk->length = htobe16(sizeof (struct uath_tx_desc));
1405
1406 memset(desc, 0, sizeof(struct uath_tx_desc));
1407 desc->msglen = htobe32(sizeof(struct uath_tx_desc));
1408 desc->msgid = (sc->sc_msgid++) + 1; /* don't care about endianness */
1409 desc->type = htobe32(WDCMSG_FLUSH);
1410 desc->txqid = htobe32(0);
1411 desc->connid = htobe32(0);
1412 desc->flags = htobe32(0);
1413
1414#ifdef UATH_DEBUG
1415 if (sc->sc_debug & UATH_DEBUG_CMDS) {
1416 DPRINTF(sc, UATH_DEBUG_RESET, "send flush ix %d\n",
1417 desc->msgid);
1418 if (sc->sc_debug & UATH_DEBUG_CMDS_DUMP)
1419 uath_dump_cmd(data->buf, data->buflen, '+');
1420 }
1421#endif
1422
1423 STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1424 UATH_STAT_INC(sc, st_tx_pending);
1425 sc->sc_tx_timer = 5;
1426 usbd_transfer_start(sc->sc_xfer[UATH_BULK_TX]);
1427
1428 return (0);
1429}
1430
1431static struct uath_data *
1432_uath_getbuf(struct uath_softc *sc)
1433{
1434 struct uath_data *bf;
1435
1436 bf = STAILQ_FIRST(&sc->sc_tx_inactive);
1437 if (bf != NULL) {
1438 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next);
1439 UATH_STAT_DEC(sc, st_tx_inactive);
1440 } else
1441 bf = NULL;
1442 if (bf == NULL)
1443 DPRINTF(sc, UATH_DEBUG_XMIT, "%s: %s\n", __func__,
1444 "out of xmit buffers");
1445 return (bf);
1446}
1447
1448static struct uath_data *
1449uath_getbuf(struct uath_softc *sc)
1450{
1451 struct uath_data *bf;
1452
1453 UATH_ASSERT_LOCKED(sc);
1454
1455 bf = _uath_getbuf(sc);
1456 if (bf == NULL) {
1457 struct ifnet *ifp = sc->sc_ifp;
1458
1459 DPRINTF(sc, UATH_DEBUG_XMIT, "%s: stop queue\n", __func__);
1460 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1461 }
1462 return (bf);
1463}
1464
1465static int
1466uath_set_ledstate(struct uath_softc *sc, int connected)
1467{
1468
1469 DPRINTF(sc, UATH_DEBUG_LED,
1470 "set led state %sconnected\n", connected ? "" : "!");
1471 connected = htobe32(connected);
1472 return uath_cmd_write(sc, WDCMSG_SET_LED_STATE,
1473 &connected, sizeof connected, 0);
1474}
1475
1476static int
1477uath_set_chan(struct uath_softc *sc, struct ieee80211_channel *c)
1478{
1479#ifdef UATH_DEBUG
1480 struct ifnet *ifp = sc->sc_ifp;
1481 struct ieee80211com *ic = ifp->if_l2com;
1482#endif
1483 struct uath_cmd_reset reset;
1484
1485 memset(&reset, 0, sizeof(reset));
1486 if (IEEE80211_IS_CHAN_2GHZ(c))
1487 reset.flags |= htobe32(UATH_CHAN_2GHZ);
1488 if (IEEE80211_IS_CHAN_5GHZ(c))
1489 reset.flags |= htobe32(UATH_CHAN_5GHZ);
1490 /* NB: 11g =>'s 11b so don't specify both OFDM and CCK */
1491 if (IEEE80211_IS_CHAN_OFDM(c))
1492 reset.flags |= htobe32(UATH_CHAN_OFDM);
1493 else if (IEEE80211_IS_CHAN_CCK(c))
1494 reset.flags |= htobe32(UATH_CHAN_CCK);
1495 /* turbo can be used in either 2GHz or 5GHz */
1496 if (c->ic_flags & IEEE80211_CHAN_TURBO)
1497 reset.flags |= htobe32(UATH_CHAN_TURBO);
1498 reset.freq = htobe32(c->ic_freq);
1499 reset.maxrdpower = htobe32(50); /* XXX */
1500 reset.channelchange = htobe32(1);
1501 reset.keeprccontent = htobe32(0);
1502
1503 DPRINTF(sc, UATH_DEBUG_CHANNEL, "set channel %d, flags 0x%x freq %u\n",
1504 ieee80211_chan2ieee(ic, c),
1505 be32toh(reset.flags), be32toh(reset.freq));
1506 return uath_cmd_write(sc, WDCMSG_RESET, &reset, sizeof reset, 0);
1507}
1508
1509static int
1510uath_reset_tx_queues(struct uath_softc *sc)
1511{
1512 int ac, error;
1513
1514 DPRINTF(sc, UATH_DEBUG_RESET, "%s: reset Tx queues\n", __func__);
1515 for (ac = 0; ac < 4; ac++) {
1516 const uint32_t qid = htobe32(ac);
1517
1518 error = uath_cmd_write(sc, WDCMSG_RELEASE_TX_QUEUE, &qid,
1519 sizeof qid, 0);
1520 if (error != 0)
1521 break;
1522 }
1523 return (error);
1524}
1525
1526static int
1527uath_wme_init(struct uath_softc *sc)
1528{
1529 /* XXX get from net80211 */
1530 static const struct uath_wme_settings uath_wme_11g[4] = {
1531 { 7, 4, 10, 0, 0 }, /* Background */
1532 { 3, 4, 10, 0, 0 }, /* Best-Effort */
1533 { 3, 3, 4, 26, 0 }, /* Video */
1534 { 2, 2, 3, 47, 0 } /* Voice */
1535 };
1536 struct uath_cmd_txq_setup qinfo;
1537 int ac, error;
1538
1539 DPRINTF(sc, UATH_DEBUG_WME, "%s: setup Tx queues\n", __func__);
1540 for (ac = 0; ac < 4; ac++) {
1541 qinfo.qid = htobe32(ac);
1542 qinfo.len = htobe32(sizeof(qinfo.attr));
1543 qinfo.attr.priority = htobe32(ac); /* XXX */
1544 qinfo.attr.aifs = htobe32(uath_wme_11g[ac].aifsn);
1545 qinfo.attr.logcwmin = htobe32(uath_wme_11g[ac].logcwmin);
1546 qinfo.attr.logcwmax = htobe32(uath_wme_11g[ac].logcwmax);
1547 qinfo.attr.bursttime = htobe32(UATH_TXOP_TO_US(
1548 uath_wme_11g[ac].txop));
1549 qinfo.attr.mode = htobe32(uath_wme_11g[ac].acm);/*XXX? */
1550 qinfo.attr.qflags = htobe32(1); /* XXX? */
1551
1552 error = uath_cmd_write(sc, WDCMSG_SETUP_TX_QUEUE, &qinfo,
1553 sizeof qinfo, 0);
1554 if (error != 0)
1555 break;
1556 }
1557 return (error);
1558}
1559
1560static int
1561uath_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1562{
1563 struct ieee80211com *ic = ifp->if_l2com;
1564 struct ifreq *ifr = (struct ifreq *) data;
1565 int error = 0, startall = 0;
1566
1567 switch (cmd) {
1568 case SIOCSIFFLAGS:
1569 if (ifp->if_flags & IFF_UP) {
1570 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1571 uath_init(ifp->if_softc);
1572 startall = 1;
1573 }
1574 } else {
1575 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1576 uath_stop(ifp);
1577 }
1578 if (startall)
1579 ieee80211_start_all(ic);
1580 break;
1581 case SIOCGIFMEDIA:
1582 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1583 break;
1584 case SIOCGIFADDR:
1585 error = ether_ioctl(ifp, cmd, data);
1586 break;
1587 default:
1588 error = EINVAL;
1589 break;
1590 }
1591
1592 return (error);
1593}
1594
1595static int
1596uath_tx_start(struct uath_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1597 struct uath_data *data)
1598{
1599 struct ieee80211vap *vap = ni->ni_vap;
1600 struct uath_chunk *chunk;
1601 struct uath_tx_desc *desc;
1602 const struct ieee80211_frame *wh;
1603 struct ieee80211_key *k;
1604 int framelen, msglen;
1605
1606 UATH_ASSERT_LOCKED(sc);
1607
1608 data->ni = ni;
1609 data->m = m0;
1610 chunk = (struct uath_chunk *)data->buf;
1611 desc = (struct uath_tx_desc *)(chunk + 1);
1612
1613 if (ieee80211_radiotap_active_vap(vap)) {
1614 struct uath_tx_radiotap_header *tap = &sc->sc_txtap;
1615
1616 tap->wt_flags = 0;
1617 if (m0->m_flags & M_FRAG)
1618 tap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG;
1619
1620 ieee80211_radiotap_tx(vap, m0);
1621 }
1622
1623 wh = mtod(m0, struct ieee80211_frame *);
085ff963 1624 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
12bd3c8b
SW
1625 k = ieee80211_crypto_encap(ni, m0);
1626 if (k == NULL) {
1627 m_freem(m0);
1628 return (ENOBUFS);
1629 }
1630
1631 /* packet header may have moved, reset our local pointer */
1632 wh = mtod(m0, struct ieee80211_frame *);
1633 }
1634 m_copydata(m0, 0, m0->m_pkthdr.len, (uint8_t *)(desc + 1));
1635
1636 framelen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
1637 msglen = framelen + sizeof (struct uath_tx_desc);
1638 data->buflen = msglen + sizeof (struct uath_chunk);
1639
1640 /* one chunk only for now */
1641 chunk->seqnum = sc->sc_seqnum++;
1642 chunk->flags = (m0->m_flags & M_FRAG) ? 0 : UATH_CFLAGS_FINAL;
1643 if (m0->m_flags & M_LASTFRAG)
1644 chunk->flags |= UATH_CFLAGS_FINAL;
1645 chunk->flags = UATH_CFLAGS_FINAL;
1646 chunk->length = htobe16(msglen);
1647
1648 /* fill Tx descriptor */
1649 desc->msglen = htobe32(msglen);
1650 /* NB: to get UATH_TX_NOTIFY reply, `msgid' must be larger than 0 */
1651 desc->msgid = (sc->sc_msgid++) + 1; /* don't care about endianness */
1652 desc->type = htobe32(WDCMSG_SEND);
1653 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1654 case IEEE80211_FC0_TYPE_CTL:
1655 case IEEE80211_FC0_TYPE_MGT:
1656 /* NB: force all management frames to highest queue */
1657 if (ni->ni_flags & IEEE80211_NODE_QOS) {
1658 /* NB: force all management frames to highest queue */
1659 desc->txqid = htobe32(WME_AC_VO | UATH_TXQID_MINRATE);
1660 } else
1661 desc->txqid = htobe32(WME_AC_BE | UATH_TXQID_MINRATE);
1662 break;
1663 case IEEE80211_FC0_TYPE_DATA:
1664 /* XXX multicast frames should honor mcastrate */
1665 desc->txqid = htobe32(M_WME_GETAC(m0));
1666 break;
1667 default:
1668 device_printf(sc->sc_dev, "bogus frame type 0x%x (%s)\n",
1669 wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK, __func__);
1670 m_freem(m0);
1671 return (EIO);
1672 }
1673 if (vap->iv_state == IEEE80211_S_AUTH ||
1674 vap->iv_state == IEEE80211_S_ASSOC ||
1675 vap->iv_state == IEEE80211_S_RUN)
1676 desc->connid = htobe32(UATH_ID_BSS);
1677 else
1678 desc->connid = htobe32(UATH_ID_INVALID);
1679 desc->flags = htobe32(0 /* no UATH_TX_NOTIFY */);
1680 desc->buflen = htobe32(m0->m_pkthdr.len);
1681
1682#ifdef UATH_DEBUG
1683 DPRINTF(sc, UATH_DEBUG_XMIT,
1684 "send frame ix %u framelen %d msglen %d connid 0x%x txqid 0x%x\n",
1685 desc->msgid, framelen, msglen, be32toh(desc->connid),
1686 be32toh(desc->txqid));
1687 if (sc->sc_debug & UATH_DEBUG_XMIT_DUMP)
1688 uath_dump_cmd(data->buf, data->buflen, '+');
1689#endif
1690
1691 STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1692 UATH_STAT_INC(sc, st_tx_pending);
1693 usbd_transfer_start(sc->sc_xfer[UATH_BULK_TX]);
1694
1695 return (0);
1696}
1697
1698/*
1699 * Cleanup driver resources when we run out of buffers while processing
1700 * fragments; return the tx buffers allocated and drop node references.
1701 */
1702static void
1703uath_txfrag_cleanup(struct uath_softc *sc,
1704 uath_datahead *frags, struct ieee80211_node *ni)
1705{
1706 struct uath_data *bf, *next;
1707
1708 UATH_ASSERT_LOCKED(sc);
1709
1710 STAILQ_FOREACH_SAFE(bf, frags, next, next) {
1711 /* NB: bf assumed clean */
1712 STAILQ_REMOVE_HEAD(frags, next);
1713 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
1714 UATH_STAT_INC(sc, st_tx_inactive);
1715 ieee80211_node_decref(ni);
1716 }
1717}
1718
1719/*
1720 * Setup xmit of a fragmented frame. Allocate a buffer for each frag and bump
1721 * the node reference count to reflect the held reference to be setup by
1722 * uath_tx_start.
1723 */
1724static int
1725uath_txfrag_setup(struct uath_softc *sc, uath_datahead *frags,
1726 struct mbuf *m0, struct ieee80211_node *ni)
1727{
1728 struct mbuf *m;
1729 struct uath_data *bf;
1730
1731 UATH_ASSERT_LOCKED(sc);
1732 for (m = m0->m_nextpkt; m != NULL; m = m->m_nextpkt) {
1733 bf = uath_getbuf(sc);
1734 if (bf == NULL) { /* out of buffers, cleanup */
1735 uath_txfrag_cleanup(sc, frags, ni);
1736 break;
1737 }
1738 ieee80211_node_incref(ni);
1739 STAILQ_INSERT_TAIL(frags, bf, next);
1740 }
1741
1742 return !STAILQ_EMPTY(frags);
1743}
1744
1745/*
1746 * Reclaim mbuf resources. For fragmented frames we need to claim each frag
1747 * chained with m_nextpkt.
1748 */
1749static void
1750uath_freetx(struct mbuf *m)
1751{
1752 struct mbuf *next;
1753
1754 do {
1755 next = m->m_nextpkt;
1756 m->m_nextpkt = NULL;
1757 m_freem(m);
1758 } while ((m = next) != NULL);
1759}
1760
1761static void
1762uath_start(struct ifnet *ifp)
1763{
1764 struct uath_data *bf;
1765 struct uath_softc *sc = ifp->if_softc;
1766 struct ieee80211_node *ni;
1767 struct mbuf *m, *next;
1768 uath_datahead frags;
1769
1770 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
1771 (sc->sc_flags & UATH_FLAG_INVALID))
1772 return;
1773
1774 UATH_LOCK(sc);
1775 for (;;) {
1776 bf = uath_getbuf(sc);
1777 if (bf == NULL)
1778 break;
1779
1780 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1781 if (m == NULL) {
1782 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
1783 UATH_STAT_INC(sc, st_tx_inactive);
1784 break;
1785 }
1786 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
1787 m->m_pkthdr.rcvif = NULL;
1788
1789 /*
1790 * Check for fragmentation. If this frame has been broken up
1791 * verify we have enough buffers to send all the fragments
1792 * so all go out or none...
1793 */
1794 STAILQ_INIT(&frags);
1795 if ((m->m_flags & M_FRAG) &&
1796 !uath_txfrag_setup(sc, &frags, m, ni)) {
1797 DPRINTF(sc, UATH_DEBUG_XMIT,
1798 "%s: out of txfrag buffers\n", __func__);
1799 uath_freetx(m);
1800 goto bad;
1801 }
1802 sc->sc_seqnum = 0;
1803 nextfrag:
1804 /*
1805 * Pass the frame to the h/w for transmission.
1806 * Fragmented frames have each frag chained together
1807 * with m_nextpkt. We know there are sufficient uath_data's
1808 * to send all the frags because of work done by
1809 * uath_txfrag_setup.
1810 */
1811 next = m->m_nextpkt;
1812 if (uath_tx_start(sc, m, ni, bf) != 0) {
1813 bad:
1814 ifp->if_oerrors++;
1815 reclaim:
1816 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
1817 UATH_STAT_INC(sc, st_tx_inactive);
1818 uath_txfrag_cleanup(sc, &frags, ni);
1819 ieee80211_free_node(ni);
1820 continue;
1821 }
1822
1823 if (next != NULL) {
1824 /*
1825 * Beware of state changing between frags.
1826 XXX check sta power-save state?
1827 */
1828 if (ni->ni_vap->iv_state != IEEE80211_S_RUN) {
1829 DPRINTF(sc, UATH_DEBUG_XMIT,
1830 "%s: flush fragmented packet, state %s\n",
1831 __func__,
1832 ieee80211_state_name[ni->ni_vap->iv_state]);
1833 uath_freetx(next);
1834 goto reclaim;
1835 }
1836 m = next;
1837 bf = STAILQ_FIRST(&frags);
1838 KASSERT(bf != NULL, ("no buf for txfrag"));
1839 STAILQ_REMOVE_HEAD(&frags, next);
1840 goto nextfrag;
1841 }
1842
1843 sc->sc_tx_timer = 5;
1844 }
1845 UATH_UNLOCK(sc);
1846}
1847
1848static int
1849uath_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1850 const struct ieee80211_bpf_params *params)
1851{
1852 struct ieee80211com *ic = ni->ni_ic;
1853 struct ifnet *ifp = ic->ic_ifp;
1854 struct uath_data *bf;
1855 struct uath_softc *sc = ifp->if_softc;
1856
1857 /* prevent management frames from being sent if we're not ready */
1858 if ((sc->sc_flags & UATH_FLAG_INVALID) ||
1859 !(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1860 m_freem(m);
1861 ieee80211_free_node(ni);
1862 return (ENETDOWN);
1863 }
1864
1865 UATH_LOCK(sc);
1866 /* grab a TX buffer */
1867 bf = uath_getbuf(sc);
1868 if (bf == NULL) {
1869 ieee80211_free_node(ni);
1870 m_freem(m);
1871 UATH_UNLOCK(sc);
1872 return (ENOBUFS);
1873 }
1874
1875 sc->sc_seqnum = 0;
1876 if (uath_tx_start(sc, m, ni, bf) != 0) {
1877 ieee80211_free_node(ni);
1878 ifp->if_oerrors++;
1879 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
1880 UATH_STAT_INC(sc, st_tx_inactive);
1881 UATH_UNLOCK(sc);
1882 return (EIO);
1883 }
1884 UATH_UNLOCK(sc);
1885
1886 sc->sc_tx_timer = 5;
1887 return (0);
1888}
1889
1890static void
1891uath_scan_start(struct ieee80211com *ic)
1892{
1893 /* do nothing */
1894}
1895
1896static void
1897uath_scan_end(struct ieee80211com *ic)
1898{
1899 /* do nothing */
1900}
1901
1902static void
1903uath_set_channel(struct ieee80211com *ic)
1904{
1905 struct ifnet *ifp = ic->ic_ifp;
1906 struct uath_softc *sc = ifp->if_softc;
1907
1908 UATH_LOCK(sc);
1909 if ((sc->sc_flags & UATH_FLAG_INVALID) ||
1910 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1911 UATH_UNLOCK(sc);
1912 return;
1913 }
1914 (void)uath_switch_channel(sc, ic->ic_curchan);
1915 UATH_UNLOCK(sc);
1916}
1917
1918static int
1919uath_set_rxmulti_filter(struct uath_softc *sc)
1920{
1921 /* XXX broken */
1922 return (0);
1923}
1924static void
1925uath_update_mcast(struct ifnet *ifp)
1926{
1927 struct uath_softc *sc = ifp->if_softc;
1928
1929 UATH_LOCK(sc);
1930 if ((sc->sc_flags & UATH_FLAG_INVALID) ||
1931 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1932 UATH_UNLOCK(sc);
1933 return;
1934 }
1935 /*
1936 * this is for avoiding the race condition when we're try to
1937 * connect to the AP with WPA.
1938 */
1939 if (sc->sc_flags & UATH_FLAG_INITDONE)
1940 (void)uath_set_rxmulti_filter(sc);
1941 UATH_UNLOCK(sc);
1942}
1943
1944static void
1945uath_update_promisc(struct ifnet *ifp)
1946{
1947 struct uath_softc *sc = ifp->if_softc;
1948
1949 UATH_LOCK(sc);
1950 if ((sc->sc_flags & UATH_FLAG_INVALID) ||
1951 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1952 UATH_UNLOCK(sc);
1953 return;
1954 }
1955 if (sc->sc_flags & UATH_FLAG_INITDONE) {
1956 uath_set_rxfilter(sc,
1957 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST |
1958 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON |
1959 UATH_FILTER_RX_PROM, UATH_FILTER_OP_SET);
1960 }
1961 UATH_UNLOCK(sc);
1962}
1963
1964static int
1965uath_create_connection(struct uath_softc *sc, uint32_t connid)
1966{
1967 const struct ieee80211_rateset *rs;
1968 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
1969 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1970 struct ieee80211_node *ni;
1971 struct uath_cmd_create_connection create;
1972
1973 ni = ieee80211_ref_node(vap->iv_bss);
1974 memset(&create, 0, sizeof(create));
1975 create.connid = htobe32(connid);
1976 create.bssid = htobe32(0);
1977 /* XXX packed or not? */
1978 create.size = htobe32(sizeof(struct uath_cmd_rateset));
1979
1980 rs = &ni->ni_rates;
1981 create.connattr.rateset.length = rs->rs_nrates;
1982 bcopy(rs->rs_rates, &create.connattr.rateset.set[0],
1983 rs->rs_nrates);
1984
1985 /* XXX turbo */
1986 if (IEEE80211_IS_CHAN_A(ni->ni_chan))
1987 create.connattr.wlanmode = htobe32(WLAN_MODE_11a);
1988 else if (IEEE80211_IS_CHAN_ANYG(ni->ni_chan))
1989 create.connattr.wlanmode = htobe32(WLAN_MODE_11g);
1990 else
1991 create.connattr.wlanmode = htobe32(WLAN_MODE_11b);
1992 ieee80211_free_node(ni);
1993
1994 return uath_cmd_write(sc, WDCMSG_CREATE_CONNECTION, &create,
1995 sizeof create, 0);
1996}
1997
1998static int
1999uath_set_rates(struct uath_softc *sc, const struct ieee80211_rateset *rs)
2000{
2001 struct uath_cmd_rates rates;
2002
2003 memset(&rates, 0, sizeof(rates));
2004 rates.connid = htobe32(UATH_ID_BSS); /* XXX */
2005 rates.size = htobe32(sizeof(struct uath_cmd_rateset));
2006 /* XXX bounds check rs->rs_nrates */
2007 rates.rateset.length = rs->rs_nrates;
2008 bcopy(rs->rs_rates, &rates.rateset.set[0], rs->rs_nrates);
2009
2010 DPRINTF(sc, UATH_DEBUG_RATES,
2011 "setting supported rates nrates=%d\n", rs->rs_nrates);
2012 return uath_cmd_write(sc, WDCMSG_SET_BASIC_RATE,
2013 &rates, sizeof rates, 0);
2014}
2015
2016static int
2017uath_write_associd(struct uath_softc *sc)
2018{
2019 struct ieee80211com *ic = sc->sc_ifp->if_l2com;
2020 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2021 struct ieee80211_node *ni;
2022 struct uath_cmd_set_associd associd;
2023
2024 ni = ieee80211_ref_node(vap->iv_bss);
2025 memset(&associd, 0, sizeof(associd));
2026 associd.defaultrateix = htobe32(1); /* XXX */
2027 associd.associd = htobe32(ni->ni_associd);
2028 associd.timoffset = htobe32(0x3b); /* XXX */
2029 IEEE80211_ADDR_COPY(associd.bssid, ni->ni_bssid);
2030 ieee80211_free_node(ni);
2031 return uath_cmd_write(sc, WDCMSG_WRITE_ASSOCID, &associd,
2032 sizeof associd, 0);
2033}
2034
2035static int
2036uath_set_ledsteady(struct uath_softc *sc, int lednum, int ledmode)
2037{
2038 struct uath_cmd_ledsteady led;
2039
2040 led.lednum = htobe32(lednum);
2041 led.ledmode = htobe32(ledmode);
2042
2043 DPRINTF(sc, UATH_DEBUG_LED, "set %s led %s (steady)\n",
2044 (lednum == UATH_LED_LINK) ? "link" : "activity",
2045 ledmode ? "on" : "off");
2046 return uath_cmd_write(sc, WDCMSG_SET_LED_STEADY, &led, sizeof led, 0);
2047}
2048
2049static int
2050uath_set_ledblink(struct uath_softc *sc, int lednum, int ledmode,
2051 int blinkrate, int slowmode)
2052{
2053 struct uath_cmd_ledblink led;
2054
2055 led.lednum = htobe32(lednum);
2056 led.ledmode = htobe32(ledmode);
2057 led.blinkrate = htobe32(blinkrate);
2058 led.slowmode = htobe32(slowmode);
2059
2060 DPRINTF(sc, UATH_DEBUG_LED, "set %s led %s (blink)\n",
2061 (lednum == UATH_LED_LINK) ? "link" : "activity",
2062 ledmode ? "on" : "off");
2063 return uath_cmd_write(sc, WDCMSG_SET_LED_BLINK, &led, sizeof led, 0);
2064}
2065
2066static int
2067uath_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
2068{
2069 enum ieee80211_state ostate = vap->iv_state;
2070 int error;
2071 struct ieee80211_node *ni;
2072 struct ieee80211com *ic = vap->iv_ic;
2073 struct uath_softc *sc = ic->ic_ifp->if_softc;
2074 struct uath_vap *uvp = UATH_VAP(vap);
2075
2076 DPRINTF(sc, UATH_DEBUG_STATE,
2077 "%s: %s -> %s\n", __func__, ieee80211_state_name[vap->iv_state],
2078 ieee80211_state_name[nstate]);
2079
2080 IEEE80211_UNLOCK(ic);
2081 UATH_LOCK(sc);
2082 callout_stop(&sc->stat_ch);
2083 callout_stop(&sc->watchdog_ch);
2084 ni = ieee80211_ref_node(vap->iv_bss);
2085
2086 switch (nstate) {
2087 case IEEE80211_S_INIT:
2088 if (ostate == IEEE80211_S_RUN) {
2089 /* turn link and activity LEDs off */
2090 uath_set_ledstate(sc, 0);
2091 }
2092 break;
2093
2094 case IEEE80211_S_SCAN:
2095 break;
2096
2097 case IEEE80211_S_AUTH:
2098 /* XXX good place? set RTS threshold */
2099 uath_config(sc, CFG_USER_RTS_THRESHOLD, vap->iv_rtsthreshold);
2100 /* XXX bad place */
2101 error = uath_set_keys(sc, vap);
2102 if (error != 0) {
2103 device_printf(sc->sc_dev,
2104 "could not set crypto keys, error %d\n", error);
2105 break;
2106 }
2107 if (uath_switch_channel(sc, ni->ni_chan) != 0) {
2108 device_printf(sc->sc_dev, "could not switch channel\n");
2109 break;
2110 }
2111 if (uath_create_connection(sc, UATH_ID_BSS) != 0) {
2112 device_printf(sc->sc_dev,
2113 "could not create connection\n");
2114 break;
2115 }
2116 break;
2117
2118 case IEEE80211_S_ASSOC:
2119 if (uath_set_rates(sc, &ni->ni_rates) != 0) {
2120 device_printf(sc->sc_dev,
2121 "could not set negotiated rate set\n");
2122 break;
2123 }
2124 break;
2125
2126 case IEEE80211_S_RUN:
2127 /* XXX monitor mode doesn't be tested */
2128 if (ic->ic_opmode == IEEE80211_M_MONITOR) {
2129 uath_set_ledstate(sc, 1);
2130 break;
2131 }
2132
2133 /*
2134 * Tx rate is controlled by firmware, report the maximum
2135 * negotiated rate in ifconfig output.
2136 */
2137 ni->ni_txrate = ni->ni_rates.rs_rates[ni->ni_rates.rs_nrates-1];
2138
2139 if (uath_write_associd(sc) != 0) {
2140 device_printf(sc->sc_dev,
2141 "could not write association id\n");
2142 break;
2143 }
2144 /* turn link LED on */
2145 uath_set_ledsteady(sc, UATH_LED_LINK, UATH_LED_ON);
2146 /* make activity LED blink */
2147 uath_set_ledblink(sc, UATH_LED_ACTIVITY, UATH_LED_ON, 1, 2);
2148 /* set state to associated */
2149 uath_set_ledstate(sc, 1);
2150
2151 /* start statistics timer */
2152 callout_reset(&sc->stat_ch, hz, uath_stat, sc);
2153 break;
2154 default:
2155 break;
2156 }
2157 ieee80211_free_node(ni);
2158 UATH_UNLOCK(sc);
2159 IEEE80211_LOCK(ic);
2160 return (uvp->newstate(vap, nstate, arg));
2161}
2162
2163static int
2164uath_set_key(struct uath_softc *sc, const struct ieee80211_key *wk,
2165 int index)
2166{
2167#if 0
2168 struct uath_cmd_crypto crypto;
2169 int i;
2170
2171 memset(&crypto, 0, sizeof(crypto));
2172 crypto.keyidx = htobe32(index);
2173 crypto.magic1 = htobe32(1);
2174 crypto.size = htobe32(368);
2175 crypto.mask = htobe32(0xffff);
2176 crypto.flags = htobe32(0x80000068);
2177 if (index != UATH_DEFAULT_KEY)
2178 crypto.flags |= htobe32(index << 16);
2179 memset(crypto.magic2, 0xff, sizeof(crypto.magic2));
2180
2181 /*
2182 * Each byte of the key must be XOR'ed with 10101010 before being
2183 * transmitted to the firmware.
2184 */
2185 for (i = 0; i < wk->wk_keylen; i++)
2186 crypto.key[i] = wk->wk_key[i] ^ 0xaa;
2187
2188 DPRINTF(sc, UATH_DEBUG_CRYPTO,
2189 "setting crypto key index=%d len=%d\n", index, wk->wk_keylen);
2190 return uath_cmd_write(sc, WDCMSG_SET_KEY_CACHE_ENTRY, &crypto,
2191 sizeof crypto, 0);
2192#else
2193 /* XXX support H/W cryto */
2194 return (0);
2195#endif
2196}
2197
2198static int
2199uath_set_keys(struct uath_softc *sc, struct ieee80211vap *vap)
2200{
2201 int i, error;
2202
2203 error = 0;
2204 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2205 const struct ieee80211_key *wk = &vap->iv_nw_keys[i];
2206
2207 if (wk->wk_flags & (IEEE80211_KEY_XMIT|IEEE80211_KEY_RECV)) {
2208 error = uath_set_key(sc, wk, i);
2209 if (error)
2210 return (error);
2211 }
2212 }
2213 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) {
2214 error = uath_set_key(sc, &vap->iv_nw_keys[vap->iv_def_txkey],
2215 UATH_DEFAULT_KEY);
2216 }
2217 return (error);
2218}
2219
2220#define UATH_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2221 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2222
2223static void
2224uath_sysctl_node(struct uath_softc *sc)
2225{
2226 struct sysctl_ctx_list *ctx;
2227 struct sysctl_oid_list *child;
2228 struct sysctl_oid *tree;
2229 struct uath_stat *stats;
2230
2231 stats = &sc->sc_stat;
2232 ctx = device_get_sysctl_ctx(sc->sc_dev);
2233 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev));
2234
2235 tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
2236 NULL, "UATH statistics");
2237 child = SYSCTL_CHILDREN(tree);
2238 UATH_SYSCTL_STAT_ADD32(ctx, child, "badchunkseqnum",
2239 &stats->st_badchunkseqnum, "Bad chunk sequence numbers");
2240 UATH_SYSCTL_STAT_ADD32(ctx, child, "invalidlen", &stats->st_invalidlen,
2241 "Invalid length");
2242 UATH_SYSCTL_STAT_ADD32(ctx, child, "multichunk", &stats->st_multichunk,
2243 "Multi chunks");
2244 UATH_SYSCTL_STAT_ADD32(ctx, child, "toobigrxpkt",
2245 &stats->st_toobigrxpkt, "Too big rx packets");
2246 UATH_SYSCTL_STAT_ADD32(ctx, child, "stopinprogress",
2247 &stats->st_stopinprogress, "Stop in progress");
2248 UATH_SYSCTL_STAT_ADD32(ctx, child, "crcerrs", &stats->st_crcerr,
2249 "CRC errors");
2250 UATH_SYSCTL_STAT_ADD32(ctx, child, "phyerr", &stats->st_phyerr,
2251 "PHY errors");
2252 UATH_SYSCTL_STAT_ADD32(ctx, child, "decrypt_crcerr",
2253 &stats->st_decrypt_crcerr, "Decryption CRC errors");
2254 UATH_SYSCTL_STAT_ADD32(ctx, child, "decrypt_micerr",
2255 &stats->st_decrypt_micerr, "Decryption Misc errors");
2256 UATH_SYSCTL_STAT_ADD32(ctx, child, "decomperr", &stats->st_decomperr,
2257 "Decomp errors");
2258 UATH_SYSCTL_STAT_ADD32(ctx, child, "keyerr", &stats->st_keyerr,
2259 "Key errors");
2260 UATH_SYSCTL_STAT_ADD32(ctx, child, "err", &stats->st_err,
2261 "Unknown errors");
2262
2263 UATH_SYSCTL_STAT_ADD32(ctx, child, "cmd_active",
2264 &stats->st_cmd_active, "Active numbers in Command queue");
2265 UATH_SYSCTL_STAT_ADD32(ctx, child, "cmd_inactive",
2266 &stats->st_cmd_inactive, "Inactive numbers in Command queue");
2267 UATH_SYSCTL_STAT_ADD32(ctx, child, "cmd_pending",
2268 &stats->st_cmd_pending, "Pending numbers in Command queue");
2269 UATH_SYSCTL_STAT_ADD32(ctx, child, "cmd_waiting",
2270 &stats->st_cmd_waiting, "Waiting numbers in Command queue");
2271 UATH_SYSCTL_STAT_ADD32(ctx, child, "rx_active",
2272 &stats->st_rx_active, "Active numbers in RX queue");
2273 UATH_SYSCTL_STAT_ADD32(ctx, child, "rx_inactive",
2274 &stats->st_rx_inactive, "Inactive numbers in RX queue");
2275 UATH_SYSCTL_STAT_ADD32(ctx, child, "tx_active",
2276 &stats->st_tx_active, "Active numbers in TX queue");
2277 UATH_SYSCTL_STAT_ADD32(ctx, child, "tx_inactive",
2278 &stats->st_tx_inactive, "Inactive numbers in TX queue");
2279 UATH_SYSCTL_STAT_ADD32(ctx, child, "tx_pending",
2280 &stats->st_tx_pending, "Pending numbers in TX queue");
2281}
2282
2283#undef UATH_SYSCTL_STAT_ADD32
2284
2285static void
2286uath_cmdeof(struct uath_softc *sc, struct uath_cmd *cmd)
2287{
2288 struct uath_cmd_hdr *hdr;
2289 int dlen;
2290
2291 hdr = (struct uath_cmd_hdr *)cmd->buf;
2292 /* NB: msgid is passed thru w/o byte swapping */
2293#ifdef UATH_DEBUG
2294 if (sc->sc_debug & UATH_DEBUG_CMDS) {
2295 int len = be32toh(hdr->len);
2296 printf("%s: %s [ix %u] len %u status %u\n",
2297 __func__, uath_codename(be32toh(hdr->code)),
2298 hdr->msgid, len, be32toh(hdr->magic));
2299 if (sc->sc_debug & UATH_DEBUG_CMDS_DUMP)
2300 uath_dump_cmd(cmd->buf,
2301 len > UATH_MAX_CMDSZ ? sizeof(*hdr) : len, '-');
2302 }
2303#endif
2304 hdr->code = be32toh(hdr->code);
2305 hdr->len = be32toh(hdr->len);
2306 hdr->magic = be32toh(hdr->magic); /* target status on return */
2307
2308 switch (hdr->code & 0xff) {
2309 /* reply to a read command */
2310 default:
2311 dlen = hdr->len - sizeof(*hdr);
2312 DPRINTF(sc, UATH_DEBUG_RX_PROC | UATH_DEBUG_RECV_ALL,
2313 "%s: code %d data len %u\n",
2314 __func__, hdr->code & 0xff, dlen);
2315 /*
2316 * The first response from the target after the
2317 * HOST_AVAILABLE has an invalid msgid so we must
2318 * treat it specially.
2319 */
2320 if (hdr->msgid < UATH_CMD_LIST_COUNT) {
2321 uint32_t *rp = (uint32_t *)(hdr+1);
2322 u_int olen;
2323
2324 if (!(sizeof(*hdr) <= hdr->len &&
2325 hdr->len < UATH_MAX_CMDSZ)) {
2326 device_printf(sc->sc_dev,
2327 "%s: invalid WDC msg length %u; "
2328 "msg ignored\n", __func__, hdr->len);
2329 return;
2330 }
2331 /*
2332 * Calculate return/receive payload size; the
2333 * first word, if present, always gives the
2334 * number of bytes--unless it's 0 in which
2335 * case a single 32-bit word should be present.
2336 */
2337 if (dlen >= sizeof(uint32_t)) {
2338 olen = be32toh(rp[0]);
2339 dlen -= sizeof(uint32_t);
2340 if (olen == 0) {
2341 /* convention is 0 =>'s one word */
2342 olen = sizeof(uint32_t);
2343 /* XXX KASSERT(olen == dlen ) */
2344 }
2345 } else
2346 olen = 0;
2347 if (cmd->odata != NULL) {
2348 /* NB: cmd->olen validated in uath_cmd */
2349 if (olen > cmd->olen) {
2350 /* XXX complain? */
2351 device_printf(sc->sc_dev,
2352 "%s: cmd 0x%x olen %u cmd olen %u\n",
2353 __func__, hdr->code, olen,
2354 cmd->olen);
2355 olen = cmd->olen;
2356 }
2357 if (olen > dlen) {
2358 /* XXX complain, shouldn't happen */
2359 device_printf(sc->sc_dev,
2360 "%s: cmd 0x%x olen %u dlen %u\n",
2361 __func__, hdr->code, olen, dlen);
2362 olen = dlen;
2363 }
2364 /* XXX have submitter do this */
2365 /* copy answer into caller's supplied buffer */
2366 bcopy(&rp[1], cmd->odata, olen);
2367 cmd->olen = olen;
2368 }
2369 }
2370 wakeup_one(cmd); /* wake up caller */
2371 break;
2372
2373 case WDCMSG_TARGET_START:
2374 if (hdr->msgid >= UATH_CMD_LIST_COUNT) {
2375 /* XXX */
2376 return;
2377 }
2378 dlen = hdr->len - sizeof(*hdr);
2379 if (dlen != sizeof(uint32_t)) {
2380 /* XXX something wrong */
2381 return;
2382 }
2383 /* XXX have submitter do this */
2384 /* copy answer into caller's supplied buffer */
2385 bcopy(hdr+1, cmd->odata, sizeof(uint32_t));
2386 cmd->olen = sizeof(uint32_t);
2387 wakeup_one(cmd); /* wake up caller */
2388 break;
2389
2390 case WDCMSG_SEND_COMPLETE:
2391 /* this notification is sent when UATH_TX_NOTIFY is set */
2392 DPRINTF(sc, UATH_DEBUG_RX_PROC | UATH_DEBUG_RECV_ALL,
2393 "%s: received Tx notification\n", __func__);
2394 break;
2395
2396 case WDCMSG_TARGET_GET_STATS:
2397 DPRINTF(sc, UATH_DEBUG_RX_PROC | UATH_DEBUG_RECV_ALL,
2398 "%s: received device statistics\n", __func__);
2399 callout_reset(&sc->stat_ch, hz, uath_stat, sc);
2400 break;
2401 }
2402}
2403
2404static void
2405uath_intr_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2406{
2407 struct uath_softc *sc = usbd_xfer_softc(xfer);
2408 struct uath_cmd *cmd;
2409 struct usb_page_cache *pc;
2410 int actlen;
2411
2412 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
2413
2414 UATH_ASSERT_LOCKED(sc);
2415
2416 switch (USB_GET_STATE(xfer)) {
2417 case USB_ST_TRANSFERRED:
2418 cmd = STAILQ_FIRST(&sc->sc_cmd_waiting);
2419 if (cmd == NULL)
2420 goto setup;
2421 STAILQ_REMOVE_HEAD(&sc->sc_cmd_waiting, next);
2422 UATH_STAT_DEC(sc, st_cmd_waiting);
2423 STAILQ_INSERT_TAIL(&sc->sc_cmd_inactive, cmd, next);
2424 UATH_STAT_INC(sc, st_cmd_inactive);
2425
2426 KASSERT(actlen >= sizeof(struct uath_cmd_hdr),
2427 ("short xfer error"));
2428 pc = usbd_xfer_get_frame(xfer, 0);
2429 usbd_copy_out(pc, 0, cmd->buf, actlen);
2430 uath_cmdeof(sc, cmd);
2431 case USB_ST_SETUP:
2432setup:
2433 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
2434 usbd_transfer_submit(xfer);
2435 break;
2436 default:
2437 if (error != USB_ERR_CANCELLED) {
2438 usbd_xfer_set_stall(xfer);
2439 goto setup;
2440 }
2441 break;
2442 }
2443}
2444
2445static void
2446uath_intr_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2447{
2448 struct uath_softc *sc = usbd_xfer_softc(xfer);
2449 struct uath_cmd *cmd;
2450
2451 UATH_ASSERT_LOCKED(sc);
2452
2453 switch (USB_GET_STATE(xfer)) {
2454 case USB_ST_TRANSFERRED:
2455 cmd = STAILQ_FIRST(&sc->sc_cmd_active);
2456 if (cmd == NULL)
2457 goto setup;
2458 STAILQ_REMOVE_HEAD(&sc->sc_cmd_active, next);
2459 UATH_STAT_DEC(sc, st_cmd_active);
2460 STAILQ_INSERT_TAIL((cmd->flags & UATH_CMD_FLAG_READ) ?
2461 &sc->sc_cmd_waiting : &sc->sc_cmd_inactive, cmd, next);
2462 if (cmd->flags & UATH_CMD_FLAG_READ)
2463 UATH_STAT_INC(sc, st_cmd_waiting);
2464 else
2465 UATH_STAT_INC(sc, st_cmd_inactive);
2466 /* FALLTHROUGH */
2467 case USB_ST_SETUP:
2468setup:
2469 cmd = STAILQ_FIRST(&sc->sc_cmd_pending);
2470 if (cmd == NULL) {
2471 DPRINTF(sc, UATH_DEBUG_XMIT, "%s: empty pending queue\n",
2472 __func__);
2473 return;
2474 }
2475 STAILQ_REMOVE_HEAD(&sc->sc_cmd_pending, next);
2476 UATH_STAT_DEC(sc, st_cmd_pending);
2477 STAILQ_INSERT_TAIL((cmd->flags & UATH_CMD_FLAG_ASYNC) ?
2478 &sc->sc_cmd_inactive : &sc->sc_cmd_active, cmd, next);
2479 if (cmd->flags & UATH_CMD_FLAG_ASYNC)
2480 UATH_STAT_INC(sc, st_cmd_inactive);
2481 else
2482 UATH_STAT_INC(sc, st_cmd_active);
2483
2484 usbd_xfer_set_frame_data(xfer, 0, cmd->buf, cmd->buflen);
2485 usbd_transfer_submit(xfer);
2486 break;
2487 default:
2488 if (error != USB_ERR_CANCELLED) {
2489 usbd_xfer_set_stall(xfer);
2490 goto setup;
2491 }
2492 break;
2493 }
2494}
2495
2496static void
2497uath_update_rxstat(struct uath_softc *sc, uint32_t status)
2498{
2499
2500 switch (status) {
2501 case UATH_STATUS_STOP_IN_PROGRESS:
2502 UATH_STAT_INC(sc, st_stopinprogress);
2503 break;
2504 case UATH_STATUS_CRC_ERR:
2505 UATH_STAT_INC(sc, st_crcerr);
2506 break;
2507 case UATH_STATUS_PHY_ERR:
2508 UATH_STAT_INC(sc, st_phyerr);
2509 break;
2510 case UATH_STATUS_DECRYPT_CRC_ERR:
2511 UATH_STAT_INC(sc, st_decrypt_crcerr);
2512 break;
2513 case UATH_STATUS_DECRYPT_MIC_ERR:
2514 UATH_STAT_INC(sc, st_decrypt_micerr);
2515 break;
2516 case UATH_STATUS_DECOMP_ERR:
2517 UATH_STAT_INC(sc, st_decomperr);
2518 break;
2519 case UATH_STATUS_KEY_ERR:
2520 UATH_STAT_INC(sc, st_keyerr);
2521 break;
2522 case UATH_STATUS_ERR:
2523 UATH_STAT_INC(sc, st_err);
2524 break;
2525 default:
2526 break;
2527 }
2528}
2529
2530static struct mbuf *
2531uath_data_rxeof(struct usb_xfer *xfer, struct uath_data *data,
2532 struct uath_rx_desc **pdesc)
2533{
2534 struct uath_softc *sc = usbd_xfer_softc(xfer);
2535 struct ifnet *ifp = sc->sc_ifp;
2536 struct ieee80211com *ic = ifp->if_l2com;
2537 struct uath_chunk *chunk;
2538 struct uath_rx_desc *desc;
2539 struct mbuf *m = data->m, *mnew, *mp;
2540 uint16_t chunklen;
2541 int actlen;
2542
2543 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
2544
2545 if (actlen < UATH_MIN_RXBUFSZ) {
2546 DPRINTF(sc, UATH_DEBUG_RECV | UATH_DEBUG_RECV_ALL,
2547 "%s: wrong xfer size (len=%d)\n", __func__, actlen);
2548 ifp->if_ierrors++;
2549 return (NULL);
2550 }
2551
2552 chunk = (struct uath_chunk *)data->buf;
2553 if (chunk->seqnum == 0 && chunk->flags == 0 && chunk->length == 0) {
2554 device_printf(sc->sc_dev, "%s: strange response\n", __func__);
2555 ifp->if_ierrors++;
2556 UATH_RESET_INTRX(sc);
2557 return (NULL);
2558 }
2559
2560 if (chunk->seqnum != sc->sc_intrx_nextnum) {
2561 DPRINTF(sc, UATH_DEBUG_XMIT, "invalid seqnum %d, expected %d\n",
2562 chunk->seqnum, sc->sc_intrx_nextnum);
2563 UATH_STAT_INC(sc, st_badchunkseqnum);
2564 if (sc->sc_intrx_head != NULL)
2565 m_freem(sc->sc_intrx_head);
2566 UATH_RESET_INTRX(sc);
2567 return (NULL);
2568 }
2569
2570 /* check multi-chunk frames */
2571 if ((chunk->seqnum == 0 && !(chunk->flags & UATH_CFLAGS_FINAL)) ||
2572 (chunk->seqnum != 0 && (chunk->flags & UATH_CFLAGS_FINAL)) ||
2573 chunk->flags & UATH_CFLAGS_RXMSG)
2574 UATH_STAT_INC(sc, st_multichunk);
2575
2576 chunklen = be16toh(chunk->length);
2577 if (chunk->flags & UATH_CFLAGS_FINAL)
2578 chunklen -= sizeof(struct uath_rx_desc);
2579
2580 if (chunklen > 0 &&
2581 (!(chunk->flags & UATH_CFLAGS_FINAL) || !(chunk->seqnum == 0))) {
2582 /* we should use intermediate RX buffer */
2583 if (chunk->seqnum == 0)
2584 UATH_RESET_INTRX(sc);
2585 if ((sc->sc_intrx_len + sizeof(struct uath_rx_desc) +
2586 chunklen) > UATH_MAX_INTRX_SIZE) {
2587 UATH_STAT_INC(sc, st_invalidlen);
2588 ifp->if_iqdrops++;
2589 if (sc->sc_intrx_head != NULL)
2590 m_freem(sc->sc_intrx_head);
2591 UATH_RESET_INTRX(sc);
2592 return (NULL);
2593 }
2594
2595 m->m_len = chunklen;
2596 m->m_data += sizeof(struct uath_chunk);
2597
2598 if (sc->sc_intrx_head == NULL) {
2599 sc->sc_intrx_head = m;
2600 sc->sc_intrx_tail = m;
2601 } else {
2602 m->m_flags &= ~M_PKTHDR;
2603 sc->sc_intrx_tail->m_next = m;
2604 sc->sc_intrx_tail = m;
2605 }
2606 }
2607 sc->sc_intrx_len += chunklen;
2608
2609 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
2610 if (mnew == NULL) {
2611 DPRINTF(sc, UATH_DEBUG_RECV | UATH_DEBUG_RECV_ALL,
2612 "%s: can't get new mbuf, drop frame\n", __func__);
2613 ifp->if_ierrors++;
2614 if (sc->sc_intrx_head != NULL)
2615 m_freem(sc->sc_intrx_head);
2616 UATH_RESET_INTRX(sc);
2617 return (NULL);
2618 }
2619
2620 data->m = mnew;
2621 data->buf = mtod(mnew, uint8_t *);
2622
2623 /* if the frame is not final continue the transfer */
2624 if (!(chunk->flags & UATH_CFLAGS_FINAL)) {
2625 sc->sc_intrx_nextnum++;
2626 UATH_RESET_INTRX(sc);
2627 return (NULL);
2628 }
2629
2630 /*
2631 * if the frame is not set UATH_CFLAGS_RXMSG, then rx descriptor is
2632 * located at the end, 32-bit aligned
2633 */
2634 desc = (chunk->flags & UATH_CFLAGS_RXMSG) ?
2635 (struct uath_rx_desc *)(chunk + 1) :
2636 (struct uath_rx_desc *)(((uint8_t *)chunk) +
2637 sizeof(struct uath_chunk) + be16toh(chunk->length) -
2638 sizeof(struct uath_rx_desc));
2639 *pdesc = desc;
2640
2641 DPRINTF(sc, UATH_DEBUG_RECV | UATH_DEBUG_RECV_ALL,
2642 "%s: frame len %u code %u status %u rate %u antenna %u "
2643 "rssi %d channel %u phyerror %u connix %u decrypterror %u "
2644 "keycachemiss %u\n", __func__, be32toh(desc->framelen)
2645 , be32toh(desc->code), be32toh(desc->status), be32toh(desc->rate)
2646 , be32toh(desc->antenna), be32toh(desc->rssi), be32toh(desc->channel)
2647 , be32toh(desc->phyerror), be32toh(desc->connix)
2648 , be32toh(desc->decrypterror), be32toh(desc->keycachemiss));
2649
2650 if (be32toh(desc->len) > MCLBYTES) {
2651 DPRINTF(sc, UATH_DEBUG_RECV | UATH_DEBUG_RECV_ALL,
2652 "%s: bad descriptor (len=%d)\n", __func__,
2653 be32toh(desc->len));
2654 ifp->if_iqdrops++;
2655 UATH_STAT_INC(sc, st_toobigrxpkt);
2656 if (sc->sc_intrx_head != NULL)
2657 m_freem(sc->sc_intrx_head);
2658 UATH_RESET_INTRX(sc);
2659 return (NULL);
2660 }
2661
2662 uath_update_rxstat(sc, be32toh(desc->status));
2663
2664 /* finalize mbuf */
2665 if (sc->sc_intrx_head == NULL) {
2666 m->m_pkthdr.rcvif = ifp;
2667 m->m_pkthdr.len = m->m_len =
2668 be32toh(desc->framelen) - UATH_RX_DUMMYSIZE;
2669 m->m_data += sizeof(struct uath_chunk);
2670 } else {
2671 mp = sc->sc_intrx_head;
2672 mp->m_pkthdr.rcvif = ifp;
2673 mp->m_flags |= M_PKTHDR;
2674 mp->m_pkthdr.len = sc->sc_intrx_len;
2675 m = mp;
2676 }
2677
2678 /* there are a lot more fields in the RX descriptor */
2679 if ((sc->sc_flags & UATH_FLAG_INVALID) == 0 &&
2680 ieee80211_radiotap_active(ic)) {
2681 struct uath_rx_radiotap_header *tap = &sc->sc_rxtap;
2682 uint32_t tsf_hi = be32toh(desc->tstamp_high);
2683 uint32_t tsf_lo = be32toh(desc->tstamp_low);
2684
2685 /* XXX only get low order 24bits of tsf from h/w */
2686 tap->wr_tsf = htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
2687 tap->wr_flags = 0;
2688 if (be32toh(desc->status) == UATH_STATUS_CRC_ERR)
2689 tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
2690 /* XXX map other status to BADFCS? */
2691 /* XXX ath h/w rate code, need to map */
2692 tap->wr_rate = be32toh(desc->rate);
2693 tap->wr_antenna = be32toh(desc->antenna);
2694 tap->wr_antsignal = -95 + be32toh(desc->rssi);
2695 tap->wr_antnoise = -95;
2696 }
2697
2698 ifp->if_ipackets++;
2699 UATH_RESET_INTRX(sc);
2700
2701 return (m);
2702}
2703
2704static void
2705uath_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2706{
2707 struct uath_softc *sc = usbd_xfer_softc(xfer);
2708 struct ifnet *ifp = sc->sc_ifp;
2709 struct ieee80211com *ic = ifp->if_l2com;
2710 struct ieee80211_frame *wh;
2711 struct ieee80211_node *ni;
2712 struct mbuf *m = NULL;
2713 struct uath_data *data;
2714 struct uath_rx_desc *desc = NULL;
2715 int8_t nf;
2716
2717 UATH_ASSERT_LOCKED(sc);
2718
2719 switch (USB_GET_STATE(xfer)) {
2720 case USB_ST_TRANSFERRED:
2721 data = STAILQ_FIRST(&sc->sc_rx_active);
2722 if (data == NULL)
2723 goto setup;
2724 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2725 UATH_STAT_DEC(sc, st_rx_active);
2726 m = uath_data_rxeof(xfer, data, &desc);
2727 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2728 UATH_STAT_INC(sc, st_rx_inactive);
2729 /* FALLTHROUGH */
2730 case USB_ST_SETUP:
2731setup:
2732 data = STAILQ_FIRST(&sc->sc_rx_inactive);
2733 if (data == NULL)
2734 return;
2735 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
2736 UATH_STAT_DEC(sc, st_rx_inactive);
2737 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
2738 UATH_STAT_INC(sc, st_rx_active);
2739 usbd_xfer_set_frame_data(xfer, 0, data->buf,
2740 usbd_xfer_max_len(xfer));
2741 usbd_transfer_submit(xfer);
2742
2743 /*
2744 * To avoid LOR we should unlock our private mutex here to call
2745 * ieee80211_input() because here is at the end of a USB
2746 * callback and safe to unlock.
2747 */
2748 if (sc->sc_flags & UATH_FLAG_INVALID) {
2749 if (m != NULL)
2750 m_freem(m);
2751 return;
2752 }
2753 UATH_UNLOCK(sc);
2754 if (m != NULL && desc != NULL) {
2755 wh = mtod(m, struct ieee80211_frame *);
2756 ni = ieee80211_find_rxnode(ic,
2757 (struct ieee80211_frame_min *)wh);
2758 nf = -95; /* XXX */
2759 if (ni != NULL) {
2760 (void) ieee80211_input(ni, m,
2761 (int)be32toh(desc->rssi), nf);
2762 /* node is no longer needed */
2763 ieee80211_free_node(ni);
2764 } else
2765 (void) ieee80211_input_all(ic, m,
2766 (int)be32toh(desc->rssi), nf);
2767 m = NULL;
2768 desc = NULL;
2769 }
2770 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
2771 !IFQ_IS_EMPTY(&ifp->if_snd))
2772 uath_start(ifp);
2773 UATH_LOCK(sc);
2774 break;
2775 default:
2776 /* needs it to the inactive queue due to a error. */
2777 data = STAILQ_FIRST(&sc->sc_rx_active);
2778 if (data != NULL) {
2779 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2780 UATH_STAT_DEC(sc, st_rx_active);
2781 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2782 UATH_STAT_INC(sc, st_rx_inactive);
2783 }
2784 if (error != USB_ERR_CANCELLED) {
2785 usbd_xfer_set_stall(xfer);
2786 ifp->if_ierrors++;
2787 goto setup;
2788 }
2789 break;
2790 }
2791}
2792
2793static void
2794uath_data_txeof(struct usb_xfer *xfer, struct uath_data *data)
2795{
2796 struct uath_softc *sc = usbd_xfer_softc(xfer);
2797 struct ifnet *ifp = sc->sc_ifp;
2798 struct mbuf *m;
2799
2800 UATH_ASSERT_LOCKED(sc);
2801
2802 /*
2803 * Do any tx complete callback. Note this must be done before releasing
2804 * the node reference.
2805 */
2806 if (data->m) {
2807 m = data->m;
2808 if (m->m_flags & M_TXCB &&
2809 (sc->sc_flags & UATH_FLAG_INVALID) == 0) {
2810 /* XXX status? */
2811 ieee80211_process_callback(data->ni, m, 0);
2812 }
2813 m_freem(m);
2814 data->m = NULL;
2815 }
2816 if (data->ni) {
2817 if ((sc->sc_flags & UATH_FLAG_INVALID) == 0)
2818 ieee80211_free_node(data->ni);
2819 data->ni = NULL;
2820 }
2821 sc->sc_tx_timer = 0;
2822 ifp->if_opackets++;
2823 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2824}
2825
2826static void
2827uath_bulk_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2828{
2829 struct uath_softc *sc = usbd_xfer_softc(xfer);
2830 struct ifnet *ifp = sc->sc_ifp;
2831 struct uath_data *data;
2832
2833 UATH_ASSERT_LOCKED(sc);
2834
2835 switch (USB_GET_STATE(xfer)) {
2836 case USB_ST_TRANSFERRED:
2837 data = STAILQ_FIRST(&sc->sc_tx_active);
2838 if (data == NULL)
2839 goto setup;
2840 STAILQ_REMOVE_HEAD(&sc->sc_tx_active, next);
2841 UATH_STAT_DEC(sc, st_tx_active);
2842 uath_data_txeof(xfer, data);
2843 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
2844 UATH_STAT_INC(sc, st_tx_inactive);
2845 /* FALLTHROUGH */
2846 case USB_ST_SETUP:
2847setup:
2848 data = STAILQ_FIRST(&sc->sc_tx_pending);
2849 if (data == NULL) {
2850 DPRINTF(sc, UATH_DEBUG_XMIT, "%s: empty pending queue\n",
2851 __func__);
2852 return;
2853 }
2854 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending, next);
2855 UATH_STAT_DEC(sc, st_tx_pending);
2856 STAILQ_INSERT_TAIL(&sc->sc_tx_active, data, next);
2857 UATH_STAT_INC(sc, st_tx_active);
2858
2859 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen);
2860 usbd_transfer_submit(xfer);
2861
2862 UATH_UNLOCK(sc);
2863 uath_start(ifp);
2864 UATH_LOCK(sc);
2865 break;
2866 default:
2867 data = STAILQ_FIRST(&sc->sc_tx_active);
2868 if (data == NULL)
2869 goto setup;
2870 if (data->ni != NULL) {
2871 if ((sc->sc_flags & UATH_FLAG_INVALID) == 0)
2872 ieee80211_free_node(data->ni);
2873 data->ni = NULL;
2874 ifp->if_oerrors++;
2875 }
2876 if (error != USB_ERR_CANCELLED) {
2877 usbd_xfer_set_stall(xfer);
2878 goto setup;
2879 }
2880 break;
2881 }
2882}
2883
2884static device_method_t uath_methods[] = {
2885 DEVMETHOD(device_probe, uath_match),
2886 DEVMETHOD(device_attach, uath_attach),
2887 DEVMETHOD(device_detach, uath_detach),
d3c9c58e 2888 DEVMETHOD_END
12bd3c8b
SW
2889};
2890static driver_t uath_driver = {
2891 "uath",
2892 uath_methods,
2893 sizeof(struct uath_softc)
2894};
2895static devclass_t uath_devclass;
2896
3a25be87 2897DRIVER_MODULE(uath, uhub, uath_driver, uath_devclass, NULL, NULL);
12bd3c8b
SW
2898MODULE_DEPEND(uath, wlan, 1, 1, 1);
2899MODULE_DEPEND(uath, usb, 1, 1, 1);
2900MODULE_VERSION(uath, 1);