1 /* $OpenBSD: if_upgt.c,v 1.35 2008/04/16 18:32:15 damien Exp $ */
2
3 /*
4 * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
5 *
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.
9 *
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.
17 */
18
19 #include "opt_wlan.h"
20
21 #include <sys/param.h>
22 #include <sys/systm.h>
23 #include <sys/kernel.h>
24 #include <sys/endian.h>
25 #include <sys/firmware.h>
26 #include <sys/linker.h>
27 #include <sys/mbuf.h>
28 #include <sys/malloc.h>
29 #include <sys/module.h>
30 #include <sys/socket.h>
31 #include <sys/sockio.h>
32 #include <sys/sysctl.h>
33
34 #include <net/if.h>
35 #include <net/if_var.h>
36 #include <net/if_arp.h>
37 #include <net/ethernet.h>
38 #include <net/if_dl.h>
39 #include <net/if_media.h>
40 #include <net/if_types.h>
41
42 #include <sys/bus.h>
43
44 #include <net80211/ieee80211_var.h>
45 #include <net80211/ieee80211_phy.h>
46 #include <net80211/ieee80211_radiotap.h>
47 #include <net80211/ieee80211_regdomain.h>
48
49 #include <net/bpf.h>
50
51 #include <dev/usb/usb.h>
52 #include <dev/usb/usbdi.h>
53 #include "usbdevs.h"
54
55 #include <dev/usb/wlan/if_upgtvar.h>
56
57 /*
58 * Driver for the USB PrismGT devices.
59 *
60 * For now just USB 2.0 devices with the GW3887 chipset are supported.
61 * The driver has been written based on the firmware version 2.13.1.0_LM87.
62 *
63 * TODO's:
64 * - MONITOR mode test.
65 * - Add HOSTAP mode.
66 * - Add IBSS mode.
67 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets).
68 *
69 * Parts of this driver has been influenced by reading the p54u driver
70 * written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and
71 * Sebastien Bourdeauducq <lekernel@prism54.org>.
72 */
73
74 static SYSCTL_NODE(_hw, OID_AUTO, upgt, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
75 "USB PrismGT GW3887 driver parameters");
76
77 #ifdef UPGT_DEBUG
78 int upgt_debug = 0;
79 SYSCTL_INT(_hw_upgt, OID_AUTO, debug, CTLFLAG_RWTUN, &upgt_debug,
80 0, "control debugging printfs");
81 enum {
82 UPGT_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
83 UPGT_DEBUG_RECV = 0x00000002, /* basic recv operation */
84 UPGT_DEBUG_RESET = 0x00000004, /* reset processing */
85 UPGT_DEBUG_INTR = 0x00000008, /* INTR */
86 UPGT_DEBUG_TX_PROC = 0x00000010, /* tx ISR proc */
87 UPGT_DEBUG_RX_PROC = 0x00000020, /* rx ISR proc */
88 UPGT_DEBUG_STATE = 0x00000040, /* 802.11 state transitions */
89 UPGT_DEBUG_STAT = 0x00000080, /* statistic */
90 UPGT_DEBUG_FW = 0x00000100, /* firmware */
91 UPGT_DEBUG_ANY = 0xffffffff
92 };
93 #define DPRINTF(sc, m, fmt, ...) do { \
94 if (sc->sc_debug & (m)) \
95 printf(fmt, __VA_ARGS__); \
96 } while (0)
97 #else
98 #define DPRINTF(sc, m, fmt, ...) do { \
99 (void) sc; \
100 } while (0)
101 #endif
102
103 /*
104 * Prototypes.
105 */
106 static device_probe_t upgt_match;
107 static device_attach_t upgt_attach;
108 static device_detach_t upgt_detach;
109 static int upgt_alloc_tx(struct upgt_softc *);
110 static int upgt_alloc_rx(struct upgt_softc *);
111 static int upgt_device_reset(struct upgt_softc *);
112 static void upgt_bulk_tx(struct upgt_softc *, struct upgt_data *);
113 static int upgt_fw_verify(struct upgt_softc *);
114 static int upgt_mem_init(struct upgt_softc *);
115 static int upgt_fw_load(struct upgt_softc *);
116 static int upgt_fw_copy(const uint8_t *, char *, int);
117 static uint32_t upgt_crc32_le(const void *, size_t);
118 static struct mbuf *
119 upgt_rxeof(struct usb_xfer *, struct upgt_data *, int *);
120 static struct mbuf *
121 upgt_rx(struct upgt_softc *, uint8_t *, int, int *);
122 static void upgt_txeof(struct usb_xfer *, struct upgt_data *);
123 static int upgt_eeprom_read(struct upgt_softc *);
124 static int upgt_eeprom_parse(struct upgt_softc *);
125 static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *);
126 static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int);
127 static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int);
128 static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int);
129 static uint32_t upgt_chksum_le(const uint32_t *, size_t);
130 static void upgt_tx_done(struct upgt_softc *, uint8_t *);
131 static void upgt_init(struct upgt_softc *);
132 static void upgt_parent(struct ieee80211com *);
133 static int upgt_transmit(struct ieee80211com *, struct mbuf *);
134 static void upgt_start(struct upgt_softc *);
135 static int upgt_raw_xmit(struct ieee80211_node *, struct mbuf *,
136 const struct ieee80211_bpf_params *);
137 static void upgt_scan_start(struct ieee80211com *);
138 static void upgt_scan_end(struct ieee80211com *);
139 static void upgt_set_channel(struct ieee80211com *);
140 static struct ieee80211vap *upgt_vap_create(struct ieee80211com *,
141 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
142 const uint8_t [IEEE80211_ADDR_LEN],
143 const uint8_t [IEEE80211_ADDR_LEN]);
144 static void upgt_vap_delete(struct ieee80211vap *);
145 static void upgt_update_mcast(struct ieee80211com *);
146 static uint8_t upgt_rx_rate(struct upgt_softc *, const int);
147 static void upgt_set_multi(void *);
148 static void upgt_stop(struct upgt_softc *);
149 static void upgt_setup_rates(struct ieee80211vap *, struct ieee80211com *);
150 static int upgt_set_macfilter(struct upgt_softc *, uint8_t);
151 static int upgt_newstate(struct ieee80211vap *, enum ieee80211_state, int);
152 static void upgt_set_chan(struct upgt_softc *, struct ieee80211_channel *);
153 static void upgt_set_led(struct upgt_softc *, int);
154 static void upgt_set_led_blink(void *);
155 static void upgt_get_stats(struct upgt_softc *);
156 static void upgt_mem_free(struct upgt_softc *, uint32_t);
157 static uint32_t upgt_mem_alloc(struct upgt_softc *);
158 static void upgt_free_tx(struct upgt_softc *);
159 static void upgt_free_rx(struct upgt_softc *);
160 static void upgt_watchdog(void *);
161 static void upgt_abort_xfers(struct upgt_softc *);
162 static void upgt_abort_xfers_locked(struct upgt_softc *);
163 static void upgt_sysctl_node(struct upgt_softc *);
164 static struct upgt_data *
165 upgt_getbuf(struct upgt_softc *);
166 static struct upgt_data *
167 upgt_gettxbuf(struct upgt_softc *);
168 static int upgt_tx_start(struct upgt_softc *, struct mbuf *,
169 struct ieee80211_node *, struct upgt_data *);
170
171 static const char *upgt_fwname = "upgt-gw3887";
172
173 static const STRUCT_USB_HOST_ID upgt_devs[] = {
174 #define UPGT_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
175 /* version 2 devices */
176 UPGT_DEV(ACCTON, PRISM_GT),
177 UPGT_DEV(BELKIN, F5D7050),
178 UPGT_DEV(CISCOLINKSYS, WUSB54AG),
179 UPGT_DEV(CONCEPTRONIC, PRISM_GT),
180 UPGT_DEV(DELL, PRISM_GT_1),
181 UPGT_DEV(DELL, PRISM_GT_2),
182 UPGT_DEV(FSC, E5400),
183 UPGT_DEV(GLOBESPAN, PRISM_GT_1),
184 UPGT_DEV(GLOBESPAN, PRISM_GT_2),
185 UPGT_DEV(NETGEAR, WG111V1_2),
186 UPGT_DEV(INTERSIL, PRISM_GT),
187 UPGT_DEV(SMC, 2862WG),
188 UPGT_DEV(USR, USR5422),
189 UPGT_DEV(WISTRONNEWEB, UR045G),
190 UPGT_DEV(XYRATEX, PRISM_GT_1),
191 UPGT_DEV(XYRATEX, PRISM_GT_2),
192 UPGT_DEV(ZCOM, XG703A),
193 UPGT_DEV(ZCOM, XM142)
194 };
195
196 static usb_callback_t upgt_bulk_rx_callback;
197 static usb_callback_t upgt_bulk_tx_callback;
198
199 static const struct usb_config upgt_config[UPGT_N_XFERS] = {
200 [UPGT_BULK_TX] = {
201 .type = UE_BULK,
202 .endpoint = UE_ADDR_ANY,
203 .direction = UE_DIR_OUT,
204 .bufsize = MCLBYTES * UPGT_TX_MAXCOUNT,
205 .flags = {
206 .force_short_xfer = 1,
207 .pipe_bof = 1
208 },
209 .callback = upgt_bulk_tx_callback,
210 .timeout = UPGT_USB_TIMEOUT, /* ms */
211 },
212 [UPGT_BULK_RX] = {
213 .type = UE_BULK,
214 .endpoint = UE_ADDR_ANY,
215 .direction = UE_DIR_IN,
216 .bufsize = MCLBYTES * UPGT_RX_MAXCOUNT,
217 .flags = {
218 .pipe_bof = 1,
219 .short_xfer_ok = 1
220 },
221 .callback = upgt_bulk_rx_callback,
222 },
223 };
224
225 static int
upgt_match(device_t dev)226 upgt_match(device_t dev)
227 {
228 struct usb_attach_arg *uaa = device_get_ivars(dev);
229
230 if (uaa->usb_mode != USB_MODE_HOST)
231 return (ENXIO);
232 if (uaa->info.bConfigIndex != UPGT_CONFIG_INDEX)
233 return (ENXIO);
234 if (uaa->info.bIfaceIndex != UPGT_IFACE_INDEX)
235 return (ENXIO);
236
237 return (usbd_lookup_id_by_uaa(upgt_devs, sizeof(upgt_devs), uaa));
238 }
239
240 static int
upgt_attach(device_t dev)241 upgt_attach(device_t dev)
242 {
243 struct upgt_softc *sc = device_get_softc(dev);
244 struct ieee80211com *ic = &sc->sc_ic;
245 struct usb_attach_arg *uaa = device_get_ivars(dev);
246 uint8_t bands[IEEE80211_MODE_BYTES];
247 uint8_t iface_index = UPGT_IFACE_INDEX;
248 int error;
249
250 sc->sc_dev = dev;
251 sc->sc_udev = uaa->device;
252 #ifdef UPGT_DEBUG
253 sc->sc_debug = upgt_debug;
254 #endif
255 device_set_usb_desc(dev);
256
257 mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
258 MTX_DEF);
259 callout_init(&sc->sc_led_ch, 0);
260 callout_init(&sc->sc_watchdog_ch, 0);
261 mbufq_init(&sc->sc_snd, ifqmaxlen);
262
263 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
264 upgt_config, UPGT_N_XFERS, sc, &sc->sc_mtx);
265 if (error) {
266 device_printf(dev, "could not allocate USB transfers, "
267 "err=%s\n", usbd_errstr(error));
268 goto fail1;
269 }
270
271 sc->sc_rx_dma_buf = usbd_xfer_get_frame_buffer(
272 sc->sc_xfer[UPGT_BULK_RX], 0);
273 sc->sc_tx_dma_buf = usbd_xfer_get_frame_buffer(
274 sc->sc_xfer[UPGT_BULK_TX], 0);
275
276 /* Setup TX and RX buffers */
277 error = upgt_alloc_tx(sc);
278 if (error)
279 goto fail2;
280 error = upgt_alloc_rx(sc);
281 if (error)
282 goto fail3;
283
284 /* Initialize the device. */
285 error = upgt_device_reset(sc);
286 if (error)
287 goto fail4;
288 /* Verify the firmware. */
289 error = upgt_fw_verify(sc);
290 if (error)
291 goto fail4;
292 /* Calculate device memory space. */
293 if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) {
294 device_printf(dev,
295 "could not find memory space addresses on FW\n");
296 error = EIO;
297 goto fail4;
298 }
299 sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1;
300 sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1;
301
302 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame start=0x%08x\n",
303 sc->sc_memaddr_frame_start);
304 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame end=0x%08x\n",
305 sc->sc_memaddr_frame_end);
306 DPRINTF(sc, UPGT_DEBUG_FW, "memory address rx start=0x%08x\n",
307 sc->sc_memaddr_rx_start);
308
309 upgt_mem_init(sc);
310
311 /* Load the firmware. */
312 error = upgt_fw_load(sc);
313 if (error)
314 goto fail4;
315
316 /* Read the whole EEPROM content and parse it. */
317 error = upgt_eeprom_read(sc);
318 if (error)
319 goto fail4;
320 error = upgt_eeprom_parse(sc);
321 if (error)
322 goto fail4;
323
324 /* all works related with the device have done here. */
325 upgt_abort_xfers(sc);
326
327 ic->ic_softc = sc;
328 ic->ic_name = device_get_nameunit(dev);
329 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
330 ic->ic_opmode = IEEE80211_M_STA;
331 /* set device capabilities */
332 ic->ic_caps =
333 IEEE80211_C_STA /* station mode */
334 | IEEE80211_C_MONITOR /* monitor mode */
335 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
336 | IEEE80211_C_SHSLOT /* short slot time supported */
337 | IEEE80211_C_BGSCAN /* capable of bg scanning */
338 | IEEE80211_C_WPA /* 802.11i */
339 ;
340
341 memset(bands, 0, sizeof(bands));
342 setbit(bands, IEEE80211_MODE_11B);
343 setbit(bands, IEEE80211_MODE_11G);
344 ieee80211_init_channels(ic, NULL, bands);
345
346 ieee80211_ifattach(ic);
347 ic->ic_raw_xmit = upgt_raw_xmit;
348 ic->ic_scan_start = upgt_scan_start;
349 ic->ic_scan_end = upgt_scan_end;
350 ic->ic_set_channel = upgt_set_channel;
351 ic->ic_vap_create = upgt_vap_create;
352 ic->ic_vap_delete = upgt_vap_delete;
353 ic->ic_update_mcast = upgt_update_mcast;
354 ic->ic_transmit = upgt_transmit;
355 ic->ic_parent = upgt_parent;
356
357 ic->ic_flags_ext |= IEEE80211_FEXT_SEQNO_OFFLOAD;
358
359 ieee80211_radiotap_attach(ic,
360 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
361 UPGT_TX_RADIOTAP_PRESENT,
362 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
363 UPGT_RX_RADIOTAP_PRESENT);
364
365 upgt_sysctl_node(sc);
366
367 if (bootverbose)
368 ieee80211_announce(ic);
369
370 return (0);
371
372 fail4: upgt_free_rx(sc);
373 fail3: upgt_free_tx(sc);
374 fail2: usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
375 fail1: mtx_destroy(&sc->sc_mtx);
376
377 return (error);
378 }
379
380 static void
upgt_txeof(struct usb_xfer * xfer,struct upgt_data * data)381 upgt_txeof(struct usb_xfer *xfer, struct upgt_data *data)
382 {
383
384 if (data->m) {
385 /* XXX status? */
386 ieee80211_tx_complete(data->ni, data->m, 0);
387 data->m = NULL;
388 data->ni = NULL;
389 }
390 }
391
392 static void
upgt_get_stats(struct upgt_softc * sc)393 upgt_get_stats(struct upgt_softc *sc)
394 {
395 struct upgt_data *data_cmd;
396 struct upgt_lmac_mem *mem;
397 struct upgt_lmac_stats *stats;
398
399 data_cmd = upgt_getbuf(sc);
400 if (data_cmd == NULL) {
401 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
402 return;
403 }
404
405 /*
406 * Transmit the URB containing the CMD data.
407 */
408 memset(data_cmd->buf, 0, MCLBYTES);
409
410 mem = (struct upgt_lmac_mem *)data_cmd->buf;
411 mem->addr = htole32(sc->sc_memaddr_frame_start +
412 UPGT_MEMSIZE_FRAME_HEAD);
413
414 stats = (struct upgt_lmac_stats *)(mem + 1);
415
416 stats->header1.flags = 0;
417 stats->header1.type = UPGT_H1_TYPE_CTRL;
418 stats->header1.len = htole16(
419 sizeof(struct upgt_lmac_stats) - sizeof(struct upgt_lmac_header));
420
421 stats->header2.reqid = htole32(sc->sc_memaddr_frame_start);
422 stats->header2.type = htole16(UPGT_H2_TYPE_STATS);
423 stats->header2.flags = 0;
424
425 data_cmd->buflen = sizeof(*mem) + sizeof(*stats);
426
427 mem->chksum = upgt_chksum_le((uint32_t *)stats,
428 data_cmd->buflen - sizeof(*mem));
429
430 upgt_bulk_tx(sc, data_cmd);
431 }
432
433 static void
upgt_parent(struct ieee80211com * ic)434 upgt_parent(struct ieee80211com *ic)
435 {
436 struct upgt_softc *sc = ic->ic_softc;
437 int startall = 0;
438
439 UPGT_LOCK(sc);
440 if (sc->sc_flags & UPGT_FLAG_DETACHED) {
441 UPGT_UNLOCK(sc);
442 return;
443 }
444 if (ic->ic_nrunning > 0) {
445 if (sc->sc_flags & UPGT_FLAG_INITDONE) {
446 if (ic->ic_allmulti > 0 || ic->ic_promisc > 0)
447 upgt_set_multi(sc);
448 } else {
449 upgt_init(sc);
450 startall = 1;
451 }
452 } else if (sc->sc_flags & UPGT_FLAG_INITDONE)
453 upgt_stop(sc);
454 UPGT_UNLOCK(sc);
455 if (startall)
456 ieee80211_start_all(ic);
457 }
458
459 static void
upgt_stop(struct upgt_softc * sc)460 upgt_stop(struct upgt_softc *sc)
461 {
462
463 UPGT_ASSERT_LOCKED(sc);
464
465 if (sc->sc_flags & UPGT_FLAG_INITDONE)
466 upgt_set_macfilter(sc, IEEE80211_S_INIT);
467 upgt_abort_xfers_locked(sc);
468 /* device down */
469 sc->sc_tx_timer = 0;
470 sc->sc_flags &= ~UPGT_FLAG_INITDONE;
471 }
472
473 static void
upgt_set_led(struct upgt_softc * sc,int action)474 upgt_set_led(struct upgt_softc *sc, int action)
475 {
476 struct upgt_data *data_cmd;
477 struct upgt_lmac_mem *mem;
478 struct upgt_lmac_led *led;
479
480 data_cmd = upgt_getbuf(sc);
481 if (data_cmd == NULL) {
482 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
483 return;
484 }
485
486 /*
487 * Transmit the URB containing the CMD data.
488 */
489 memset(data_cmd->buf, 0, MCLBYTES);
490
491 mem = (struct upgt_lmac_mem *)data_cmd->buf;
492 mem->addr = htole32(sc->sc_memaddr_frame_start +
493 UPGT_MEMSIZE_FRAME_HEAD);
494
495 led = (struct upgt_lmac_led *)(mem + 1);
496
497 led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
498 led->header1.type = UPGT_H1_TYPE_CTRL;
499 led->header1.len = htole16(
500 sizeof(struct upgt_lmac_led) -
501 sizeof(struct upgt_lmac_header));
502
503 led->header2.reqid = htole32(sc->sc_memaddr_frame_start);
504 led->header2.type = htole16(UPGT_H2_TYPE_LED);
505 led->header2.flags = 0;
506
507 switch (action) {
508 case UPGT_LED_OFF:
509 led->mode = htole16(UPGT_LED_MODE_SET);
510 led->action_fix = 0;
511 led->action_tmp = htole16(UPGT_LED_ACTION_OFF);
512 led->action_tmp_dur = 0;
513 break;
514 case UPGT_LED_ON:
515 led->mode = htole16(UPGT_LED_MODE_SET);
516 led->action_fix = 0;
517 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
518 led->action_tmp_dur = 0;
519 break;
520 case UPGT_LED_BLINK:
521 if (sc->sc_state != IEEE80211_S_RUN) {
522 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
523 return;
524 }
525 if (sc->sc_led_blink) {
526 /* previous blink was not finished */
527 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
528 return;
529 }
530 led->mode = htole16(UPGT_LED_MODE_SET);
531 led->action_fix = htole16(UPGT_LED_ACTION_OFF);
532 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
533 led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR);
534 /* lock blink */
535 sc->sc_led_blink = 1;
536 callout_reset(&sc->sc_led_ch, hz, upgt_set_led_blink, sc);
537 break;
538 default:
539 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
540 return;
541 }
542
543 data_cmd->buflen = sizeof(*mem) + sizeof(*led);
544
545 mem->chksum = upgt_chksum_le((uint32_t *)led,
546 data_cmd->buflen - sizeof(*mem));
547
548 upgt_bulk_tx(sc, data_cmd);
549 }
550
551 static void
upgt_set_led_blink(void * arg)552 upgt_set_led_blink(void *arg)
553 {
554 struct upgt_softc *sc = arg;
555
556 /* blink finished, we are ready for a next one */
557 sc->sc_led_blink = 0;
558 }
559
560 static void
upgt_init(struct upgt_softc * sc)561 upgt_init(struct upgt_softc *sc)
562 {
563
564 UPGT_ASSERT_LOCKED(sc);
565
566 if (sc->sc_flags & UPGT_FLAG_INITDONE)
567 upgt_stop(sc);
568
569 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
570
571 (void)upgt_set_macfilter(sc, IEEE80211_S_SCAN);
572
573 sc->sc_flags |= UPGT_FLAG_INITDONE;
574
575 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
576 }
577
578 static int
upgt_set_macfilter(struct upgt_softc * sc,uint8_t state)579 upgt_set_macfilter(struct upgt_softc *sc, uint8_t state)
580 {
581 struct ieee80211com *ic = &sc->sc_ic;
582 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
583 struct ieee80211_node *ni;
584 struct upgt_data *data_cmd;
585 struct upgt_lmac_mem *mem;
586 struct upgt_lmac_filter *filter;
587
588 UPGT_ASSERT_LOCKED(sc);
589
590 data_cmd = upgt_getbuf(sc);
591 if (data_cmd == NULL) {
592 device_printf(sc->sc_dev, "out of TX buffers.\n");
593 return (ENOBUFS);
594 }
595
596 /*
597 * Transmit the URB containing the CMD data.
598 */
599 memset(data_cmd->buf, 0, MCLBYTES);
600
601 mem = (struct upgt_lmac_mem *)data_cmd->buf;
602 mem->addr = htole32(sc->sc_memaddr_frame_start +
603 UPGT_MEMSIZE_FRAME_HEAD);
604
605 filter = (struct upgt_lmac_filter *)(mem + 1);
606
607 filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
608 filter->header1.type = UPGT_H1_TYPE_CTRL;
609 filter->header1.len = htole16(
610 sizeof(struct upgt_lmac_filter) -
611 sizeof(struct upgt_lmac_header));
612
613 filter->header2.reqid = htole32(sc->sc_memaddr_frame_start);
614 filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER);
615 filter->header2.flags = 0;
616
617 switch (state) {
618 case IEEE80211_S_INIT:
619 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: set MAC filter to INIT\n",
620 __func__);
621 filter->type = htole16(UPGT_FILTER_TYPE_RESET);
622 break;
623 case IEEE80211_S_SCAN:
624 DPRINTF(sc, UPGT_DEBUG_STATE,
625 "set MAC filter to SCAN (bssid %s)\n",
626 ether_sprintf(ieee80211broadcastaddr));
627 filter->type = htole16(UPGT_FILTER_TYPE_NONE);
628 IEEE80211_ADDR_COPY(filter->dst,
629 vap ? vap->iv_myaddr : ic->ic_macaddr);
630 IEEE80211_ADDR_COPY(filter->src, ieee80211broadcastaddr);
631 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
632 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
633 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
634 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
635 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
636 break;
637 case IEEE80211_S_RUN:
638 ni = ieee80211_ref_node(vap->iv_bss);
639 /* XXX monitor mode isn't tested yet. */
640 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
641 filter->type = htole16(UPGT_FILTER_TYPE_MONITOR);
642 IEEE80211_ADDR_COPY(filter->dst,
643 vap ? vap->iv_myaddr : ic->ic_macaddr);
644 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
645 filter->unknown1 = htole16(UPGT_FILTER_MONITOR_UNKNOWN1);
646 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
647 filter->unknown2 = htole16(UPGT_FILTER_MONITOR_UNKNOWN2);
648 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
649 filter->unknown3 = htole16(UPGT_FILTER_MONITOR_UNKNOWN3);
650 } else {
651 DPRINTF(sc, UPGT_DEBUG_STATE,
652 "set MAC filter to RUN (bssid %s)\n",
653 ether_sprintf(ni->ni_bssid));
654 filter->type = htole16(UPGT_FILTER_TYPE_STA);
655 IEEE80211_ADDR_COPY(filter->dst,
656 vap ? vap->iv_myaddr : ic->ic_macaddr);
657 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
658 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
659 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
660 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
661 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
662 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
663 }
664 ieee80211_free_node(ni);
665 break;
666 default:
667 device_printf(sc->sc_dev,
668 "MAC filter does not know that state\n");
669 break;
670 }
671
672 data_cmd->buflen = sizeof(*mem) + sizeof(*filter);
673
674 mem->chksum = upgt_chksum_le((uint32_t *)filter,
675 data_cmd->buflen - sizeof(*mem));
676
677 upgt_bulk_tx(sc, data_cmd);
678
679 return (0);
680 }
681
682 static void
upgt_setup_rates(struct ieee80211vap * vap,struct ieee80211com * ic)683 upgt_setup_rates(struct ieee80211vap *vap, struct ieee80211com *ic)
684 {
685 struct upgt_softc *sc = ic->ic_softc;
686 const struct ieee80211_txparam *tp;
687
688 /*
689 * 0x01 = OFMD6 0x10 = DS1
690 * 0x04 = OFDM9 0x11 = DS2
691 * 0x06 = OFDM12 0x12 = DS5
692 * 0x07 = OFDM18 0x13 = DS11
693 * 0x08 = OFDM24
694 * 0x09 = OFDM36
695 * 0x0a = OFDM48
696 * 0x0b = OFDM54
697 */
698 const uint8_t rateset_auto_11b[] =
699 { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 };
700 const uint8_t rateset_auto_11g[] =
701 { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 };
702 const uint8_t rateset_fix_11bg[] =
703 { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07,
704 0x08, 0x09, 0x0a, 0x0b };
705
706 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
707
708 /* XXX */
709 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
710 /*
711 * Automatic rate control is done by the device.
712 * We just pass the rateset from which the device
713 * will pickup a rate.
714 */
715 if (ic->ic_curmode == IEEE80211_MODE_11B)
716 memcpy(sc->sc_cur_rateset, rateset_auto_11b,
717 sizeof(sc->sc_cur_rateset));
718 if (ic->ic_curmode == IEEE80211_MODE_11G ||
719 ic->ic_curmode == IEEE80211_MODE_AUTO)
720 memcpy(sc->sc_cur_rateset, rateset_auto_11g,
721 sizeof(sc->sc_cur_rateset));
722 } else {
723 /* set a fixed rate */
724 memset(sc->sc_cur_rateset, rateset_fix_11bg[tp->ucastrate],
725 sizeof(sc->sc_cur_rateset));
726 }
727 }
728
729 static void
upgt_set_multi(void * arg)730 upgt_set_multi(void *arg)
731 {
732
733 /* XXX don't know how to set a device. Lack of docs. */
734 }
735
736 static int
upgt_transmit(struct ieee80211com * ic,struct mbuf * m)737 upgt_transmit(struct ieee80211com *ic, struct mbuf *m)
738 {
739 struct upgt_softc *sc = ic->ic_softc;
740 int error;
741
742 UPGT_LOCK(sc);
743 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0) {
744 UPGT_UNLOCK(sc);
745 return (ENXIO);
746 }
747 error = mbufq_enqueue(&sc->sc_snd, m);
748 if (error) {
749 UPGT_UNLOCK(sc);
750 return (error);
751 }
752 upgt_start(sc);
753 UPGT_UNLOCK(sc);
754
755 return (0);
756 }
757
758 static void
upgt_start(struct upgt_softc * sc)759 upgt_start(struct upgt_softc *sc)
760 {
761 struct upgt_data *data_tx;
762 struct ieee80211_node *ni;
763 struct mbuf *m;
764
765 UPGT_ASSERT_LOCKED(sc);
766
767 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0)
768 return;
769
770 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
771 data_tx = upgt_gettxbuf(sc);
772 if (data_tx == NULL) {
773 mbufq_prepend(&sc->sc_snd, m);
774 break;
775 }
776
777 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
778 m->m_pkthdr.rcvif = NULL;
779
780 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
781 if_inc_counter(ni->ni_vap->iv_ifp,
782 IFCOUNTER_OERRORS, 1);
783 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
784 UPGT_STAT_INC(sc, st_tx_inactive);
785 ieee80211_free_node(ni);
786 continue;
787 }
788 sc->sc_tx_timer = 5;
789 }
790 }
791
792 static int
upgt_raw_xmit(struct ieee80211_node * ni,struct mbuf * m,const struct ieee80211_bpf_params * params)793 upgt_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
794 const struct ieee80211_bpf_params *params)
795 {
796 struct ieee80211com *ic = ni->ni_ic;
797 struct upgt_softc *sc = ic->ic_softc;
798 struct upgt_data *data_tx = NULL;
799
800 UPGT_LOCK(sc);
801 /* prevent management frames from being sent if we're not ready */
802 if (!(sc->sc_flags & UPGT_FLAG_INITDONE)) {
803 m_freem(m);
804 UPGT_UNLOCK(sc);
805 return ENETDOWN;
806 }
807
808 data_tx = upgt_gettxbuf(sc);
809 if (data_tx == NULL) {
810 m_freem(m);
811 UPGT_UNLOCK(sc);
812 return (ENOBUFS);
813 }
814
815 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
816 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
817 UPGT_STAT_INC(sc, st_tx_inactive);
818 UPGT_UNLOCK(sc);
819 return (EIO);
820 }
821 UPGT_UNLOCK(sc);
822
823 sc->sc_tx_timer = 5;
824 return (0);
825 }
826
827 static void
upgt_watchdog(void * arg)828 upgt_watchdog(void *arg)
829 {
830 struct upgt_softc *sc = arg;
831 struct ieee80211com *ic = &sc->sc_ic;
832
833 if (sc->sc_tx_timer > 0) {
834 if (--sc->sc_tx_timer == 0) {
835 device_printf(sc->sc_dev, "watchdog timeout\n");
836 /* upgt_init(sc); XXX needs a process context ? */
837 counter_u64_add(ic->ic_oerrors, 1);
838 return;
839 }
840 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
841 }
842 }
843
844 static uint32_t
upgt_mem_alloc(struct upgt_softc * sc)845 upgt_mem_alloc(struct upgt_softc *sc)
846 {
847 int i;
848
849 for (i = 0; i < sc->sc_memory.pages; i++) {
850 if (sc->sc_memory.page[i].used == 0) {
851 sc->sc_memory.page[i].used = 1;
852 return (sc->sc_memory.page[i].addr);
853 }
854 }
855
856 return (0);
857 }
858
859 static void
upgt_scan_start(struct ieee80211com * ic)860 upgt_scan_start(struct ieee80211com *ic)
861 {
862 /* do nothing. */
863 }
864
865 static void
upgt_scan_end(struct ieee80211com * ic)866 upgt_scan_end(struct ieee80211com *ic)
867 {
868 /* do nothing. */
869 }
870
871 static void
upgt_set_channel(struct ieee80211com * ic)872 upgt_set_channel(struct ieee80211com *ic)
873 {
874 struct upgt_softc *sc = ic->ic_softc;
875
876 UPGT_LOCK(sc);
877 upgt_set_chan(sc, ic->ic_curchan);
878 UPGT_UNLOCK(sc);
879 }
880
881 static void
upgt_set_chan(struct upgt_softc * sc,struct ieee80211_channel * c)882 upgt_set_chan(struct upgt_softc *sc, struct ieee80211_channel *c)
883 {
884 struct ieee80211com *ic = &sc->sc_ic;
885 struct upgt_data *data_cmd;
886 struct upgt_lmac_mem *mem;
887 struct upgt_lmac_channel *chan;
888 int channel;
889
890 UPGT_ASSERT_LOCKED(sc);
891
892 channel = ieee80211_chan2ieee(ic, c);
893 if (channel == 0 || channel == IEEE80211_CHAN_ANY) {
894 /* XXX should NEVER happen */
895 device_printf(sc->sc_dev,
896 "%s: invalid channel %x\n", __func__, channel);
897 return;
898 }
899
900 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: channel %d\n", __func__, channel);
901
902 data_cmd = upgt_getbuf(sc);
903 if (data_cmd == NULL) {
904 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
905 return;
906 }
907 /*
908 * Transmit the URB containing the CMD data.
909 */
910 memset(data_cmd->buf, 0, MCLBYTES);
911
912 mem = (struct upgt_lmac_mem *)data_cmd->buf;
913 mem->addr = htole32(sc->sc_memaddr_frame_start +
914 UPGT_MEMSIZE_FRAME_HEAD);
915
916 chan = (struct upgt_lmac_channel *)(mem + 1);
917
918 chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
919 chan->header1.type = UPGT_H1_TYPE_CTRL;
920 chan->header1.len = htole16(
921 sizeof(struct upgt_lmac_channel) - sizeof(struct upgt_lmac_header));
922
923 chan->header2.reqid = htole32(sc->sc_memaddr_frame_start);
924 chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL);
925 chan->header2.flags = 0;
926
927 chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1);
928 chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2);
929 chan->freq6 = sc->sc_eeprom_freq6[channel];
930 chan->settings = sc->sc_eeprom_freq6_settings;
931 chan->unknown3 = UPGT_CHANNEL_UNKNOWN3;
932
933 memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data,
934 sizeof(chan->freq3_1));
935 memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel],
936 sizeof(sc->sc_eeprom_freq4[channel]));
937 memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data,
938 sizeof(chan->freq3_2));
939
940 data_cmd->buflen = sizeof(*mem) + sizeof(*chan);
941
942 mem->chksum = upgt_chksum_le((uint32_t *)chan,
943 data_cmd->buflen - sizeof(*mem));
944
945 upgt_bulk_tx(sc, data_cmd);
946 }
947
948 static struct ieee80211vap *
upgt_vap_create(struct ieee80211com * ic,const char name[IFNAMSIZ],int unit,enum ieee80211_opmode opmode,int flags,const uint8_t bssid[IEEE80211_ADDR_LEN],const uint8_t mac[IEEE80211_ADDR_LEN])949 upgt_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
950 enum ieee80211_opmode opmode, int flags,
951 const uint8_t bssid[IEEE80211_ADDR_LEN],
952 const uint8_t mac[IEEE80211_ADDR_LEN])
953 {
954 struct upgt_vap *uvp;
955 struct ieee80211vap *vap;
956
957 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
958 return NULL;
959 uvp = malloc(sizeof(struct upgt_vap), M_80211_VAP, M_WAITOK | M_ZERO);
960 vap = &uvp->vap;
961 /* enable s/w bmiss handling for sta mode */
962
963 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
964 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
965 /* out of memory */
966 free(uvp, M_80211_VAP);
967 return (NULL);
968 }
969
970 /* override state transition machine */
971 uvp->newstate = vap->iv_newstate;
972 vap->iv_newstate = upgt_newstate;
973
974 /* setup device rates */
975 upgt_setup_rates(vap, ic);
976
977 /* complete setup */
978 ieee80211_vap_attach(vap, ieee80211_media_change,
979 ieee80211_media_status, mac);
980 ic->ic_opmode = opmode;
981 return vap;
982 }
983
984 static int
upgt_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)985 upgt_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
986 {
987 struct upgt_vap *uvp = UPGT_VAP(vap);
988 struct ieee80211com *ic = vap->iv_ic;
989 struct upgt_softc *sc = ic->ic_softc;
990
991 /* do it in a process context */
992 sc->sc_state = nstate;
993
994 IEEE80211_UNLOCK(ic);
995 UPGT_LOCK(sc);
996 callout_stop(&sc->sc_led_ch);
997 callout_stop(&sc->sc_watchdog_ch);
998
999 switch (nstate) {
1000 case IEEE80211_S_INIT:
1001 /* do not accept any frames if the device is down */
1002 (void)upgt_set_macfilter(sc, sc->sc_state);
1003 upgt_set_led(sc, UPGT_LED_OFF);
1004 break;
1005 case IEEE80211_S_SCAN:
1006 upgt_set_chan(sc, ic->ic_curchan);
1007 break;
1008 case IEEE80211_S_AUTH:
1009 upgt_set_chan(sc, ic->ic_curchan);
1010 break;
1011 case IEEE80211_S_ASSOC:
1012 break;
1013 case IEEE80211_S_RUN:
1014 upgt_set_macfilter(sc, sc->sc_state);
1015 upgt_set_led(sc, UPGT_LED_ON);
1016 break;
1017 default:
1018 break;
1019 }
1020 UPGT_UNLOCK(sc);
1021 IEEE80211_LOCK(ic);
1022 return (uvp->newstate(vap, nstate, arg));
1023 }
1024
1025 static void
upgt_vap_delete(struct ieee80211vap * vap)1026 upgt_vap_delete(struct ieee80211vap *vap)
1027 {
1028 struct upgt_vap *uvp = UPGT_VAP(vap);
1029
1030 ieee80211_vap_detach(vap);
1031 free(uvp, M_80211_VAP);
1032 }
1033
1034 static void
upgt_update_mcast(struct ieee80211com * ic)1035 upgt_update_mcast(struct ieee80211com *ic)
1036 {
1037 struct upgt_softc *sc = ic->ic_softc;
1038
1039 upgt_set_multi(sc);
1040 }
1041
1042 static int
upgt_eeprom_parse(struct upgt_softc * sc)1043 upgt_eeprom_parse(struct upgt_softc *sc)
1044 {
1045 struct ieee80211com *ic = &sc->sc_ic;
1046 struct upgt_eeprom_header *eeprom_header;
1047 struct upgt_eeprom_option *eeprom_option;
1048 uint16_t option_len;
1049 uint16_t option_type;
1050 uint16_t preamble_len;
1051 int option_end = 0;
1052
1053 /* calculate eeprom options start offset */
1054 eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom;
1055 preamble_len = le16toh(eeprom_header->preamble_len);
1056 eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom +
1057 (sizeof(struct upgt_eeprom_header) + preamble_len));
1058
1059 while (!option_end) {
1060 /* sanity check */
1061 if (eeprom_option >= (struct upgt_eeprom_option *)
1062 (sc->sc_eeprom + UPGT_EEPROM_SIZE)) {
1063 return (EINVAL);
1064 }
1065
1066 /* the eeprom option length is stored in words */
1067 option_len =
1068 (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t);
1069 option_type =
1070 le16toh(eeprom_option->type);
1071
1072 /* sanity check */
1073 if (option_len == 0 || option_len >= UPGT_EEPROM_SIZE)
1074 return (EINVAL);
1075
1076 switch (option_type) {
1077 case UPGT_EEPROM_TYPE_NAME:
1078 DPRINTF(sc, UPGT_DEBUG_FW,
1079 "EEPROM name len=%d\n", option_len);
1080 break;
1081 case UPGT_EEPROM_TYPE_SERIAL:
1082 DPRINTF(sc, UPGT_DEBUG_FW,
1083 "EEPROM serial len=%d\n", option_len);
1084 break;
1085 case UPGT_EEPROM_TYPE_MAC:
1086 DPRINTF(sc, UPGT_DEBUG_FW,
1087 "EEPROM mac len=%d\n", option_len);
1088
1089 IEEE80211_ADDR_COPY(ic->ic_macaddr,
1090 eeprom_option->data);
1091 break;
1092 case UPGT_EEPROM_TYPE_HWRX:
1093 DPRINTF(sc, UPGT_DEBUG_FW,
1094 "EEPROM hwrx len=%d\n", option_len);
1095
1096 upgt_eeprom_parse_hwrx(sc, eeprom_option->data);
1097 break;
1098 case UPGT_EEPROM_TYPE_CHIP:
1099 DPRINTF(sc, UPGT_DEBUG_FW,
1100 "EEPROM chip len=%d\n", option_len);
1101 break;
1102 case UPGT_EEPROM_TYPE_FREQ3:
1103 DPRINTF(sc, UPGT_DEBUG_FW,
1104 "EEPROM freq3 len=%d\n", option_len);
1105
1106 upgt_eeprom_parse_freq3(sc, eeprom_option->data,
1107 option_len);
1108 break;
1109 case UPGT_EEPROM_TYPE_FREQ4:
1110 DPRINTF(sc, UPGT_DEBUG_FW,
1111 "EEPROM freq4 len=%d\n", option_len);
1112
1113 upgt_eeprom_parse_freq4(sc, eeprom_option->data,
1114 option_len);
1115 break;
1116 case UPGT_EEPROM_TYPE_FREQ5:
1117 DPRINTF(sc, UPGT_DEBUG_FW,
1118 "EEPROM freq5 len=%d\n", option_len);
1119 break;
1120 case UPGT_EEPROM_TYPE_FREQ6:
1121 DPRINTF(sc, UPGT_DEBUG_FW,
1122 "EEPROM freq6 len=%d\n", option_len);
1123
1124 upgt_eeprom_parse_freq6(sc, eeprom_option->data,
1125 option_len);
1126 break;
1127 case UPGT_EEPROM_TYPE_END:
1128 DPRINTF(sc, UPGT_DEBUG_FW,
1129 "EEPROM end len=%d\n", option_len);
1130 option_end = 1;
1131 break;
1132 case UPGT_EEPROM_TYPE_OFF:
1133 DPRINTF(sc, UPGT_DEBUG_FW,
1134 "%s: EEPROM off without end option\n", __func__);
1135 return (EIO);
1136 default:
1137 DPRINTF(sc, UPGT_DEBUG_FW,
1138 "EEPROM unknown type 0x%04x len=%d\n",
1139 option_type, option_len);
1140 break;
1141 }
1142
1143 /* jump to next EEPROM option */
1144 eeprom_option = (struct upgt_eeprom_option *)
1145 (eeprom_option->data + option_len);
1146 }
1147 return (0);
1148 }
1149
1150 static void
upgt_eeprom_parse_freq3(struct upgt_softc * sc,uint8_t * data,int len)1151 upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len)
1152 {
1153 struct upgt_eeprom_freq3_header *freq3_header;
1154 struct upgt_lmac_freq3 *freq3;
1155 int i;
1156 int elements;
1157 unsigned channel;
1158
1159 freq3_header = (struct upgt_eeprom_freq3_header *)data;
1160 freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1);
1161
1162 elements = freq3_header->elements;
1163
1164 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d\n",
1165 freq3_header->flags, elements);
1166
1167 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq3[0])))
1168 return;
1169
1170 for (i = 0; i < elements; i++) {
1171 channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0);
1172 if (channel >= IEEE80211_CHAN_MAX)
1173 continue;
1174
1175 sc->sc_eeprom_freq3[channel] = freq3[i];
1176
1177 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1178 le16toh(sc->sc_eeprom_freq3[channel].freq), channel);
1179 }
1180 }
1181
1182 void
upgt_eeprom_parse_freq4(struct upgt_softc * sc,uint8_t * data,int len)1183 upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len)
1184 {
1185 struct upgt_eeprom_freq4_header *freq4_header;
1186 struct upgt_eeprom_freq4_1 *freq4_1;
1187 struct upgt_eeprom_freq4_2 *freq4_2;
1188 int i;
1189 int j;
1190 int elements;
1191 int settings;
1192 unsigned channel;
1193
1194 freq4_header = (struct upgt_eeprom_freq4_header *)data;
1195 freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1);
1196 elements = freq4_header->elements;
1197 settings = freq4_header->settings;
1198
1199 /* we need this value later */
1200 sc->sc_eeprom_freq6_settings = freq4_header->settings;
1201
1202 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d settings=%d\n",
1203 freq4_header->flags, elements, settings);
1204
1205 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq4_1[0])))
1206 return;
1207
1208 for (i = 0; i < elements; i++) {
1209 channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0);
1210 if (channel >= IEEE80211_CHAN_MAX)
1211 continue;
1212
1213 freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data;
1214 for (j = 0; j < settings; j++) {
1215 sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j];
1216 sc->sc_eeprom_freq4[channel][j].pad = 0;
1217 }
1218
1219 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1220 le16toh(freq4_1[i].freq), channel);
1221 }
1222 }
1223
1224 void
upgt_eeprom_parse_freq6(struct upgt_softc * sc,uint8_t * data,int len)1225 upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len)
1226 {
1227 struct upgt_lmac_freq6 *freq6;
1228 int i;
1229 int elements;
1230 unsigned channel;
1231
1232 freq6 = (struct upgt_lmac_freq6 *)data;
1233 elements = len / sizeof(struct upgt_lmac_freq6);
1234
1235 DPRINTF(sc, UPGT_DEBUG_FW, "elements=%d\n", elements);
1236
1237 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq6[0])))
1238 return;
1239
1240 for (i = 0; i < elements; i++) {
1241 channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0);
1242 if (channel >= IEEE80211_CHAN_MAX)
1243 continue;
1244
1245 sc->sc_eeprom_freq6[channel] = freq6[i];
1246
1247 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1248 le16toh(sc->sc_eeprom_freq6[channel].freq), channel);
1249 }
1250 }
1251
1252 static void
upgt_eeprom_parse_hwrx(struct upgt_softc * sc,uint8_t * data)1253 upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data)
1254 {
1255 struct upgt_eeprom_option_hwrx *option_hwrx;
1256
1257 option_hwrx = (struct upgt_eeprom_option_hwrx *)data;
1258
1259 sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST;
1260
1261 DPRINTF(sc, UPGT_DEBUG_FW, "hwrx option value=0x%04x\n",
1262 sc->sc_eeprom_hwrx);
1263 }
1264
1265 static int
upgt_eeprom_read(struct upgt_softc * sc)1266 upgt_eeprom_read(struct upgt_softc *sc)
1267 {
1268 struct upgt_data *data_cmd;
1269 struct upgt_lmac_mem *mem;
1270 struct upgt_lmac_eeprom *eeprom;
1271 int block, error, offset;
1272
1273 UPGT_LOCK(sc);
1274 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(100));
1275
1276 offset = 0;
1277 block = UPGT_EEPROM_BLOCK_SIZE;
1278 while (offset < UPGT_EEPROM_SIZE) {
1279 DPRINTF(sc, UPGT_DEBUG_FW,
1280 "request EEPROM block (offset=%d, len=%d)\n", offset, block);
1281
1282 data_cmd = upgt_getbuf(sc);
1283 if (data_cmd == NULL) {
1284 UPGT_UNLOCK(sc);
1285 return (ENOBUFS);
1286 }
1287
1288 /*
1289 * Transmit the URB containing the CMD data.
1290 */
1291 memset(data_cmd->buf, 0, MCLBYTES);
1292
1293 mem = (struct upgt_lmac_mem *)data_cmd->buf;
1294 mem->addr = htole32(sc->sc_memaddr_frame_start +
1295 UPGT_MEMSIZE_FRAME_HEAD);
1296
1297 eeprom = (struct upgt_lmac_eeprom *)(mem + 1);
1298 eeprom->header1.flags = 0;
1299 eeprom->header1.type = UPGT_H1_TYPE_CTRL;
1300 eeprom->header1.len = htole16((
1301 sizeof(struct upgt_lmac_eeprom) -
1302 sizeof(struct upgt_lmac_header)) + block);
1303
1304 eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start);
1305 eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM);
1306 eeprom->header2.flags = 0;
1307
1308 eeprom->offset = htole16(offset);
1309 eeprom->len = htole16(block);
1310
1311 data_cmd->buflen = sizeof(*mem) + sizeof(*eeprom) + block;
1312
1313 mem->chksum = upgt_chksum_le((uint32_t *)eeprom,
1314 data_cmd->buflen - sizeof(*mem));
1315 upgt_bulk_tx(sc, data_cmd);
1316
1317 error = mtx_sleep(sc, &sc->sc_mtx, 0, "eeprom_request", hz);
1318 if (error != 0) {
1319 device_printf(sc->sc_dev,
1320 "timeout while waiting for EEPROM data\n");
1321 UPGT_UNLOCK(sc);
1322 return (EIO);
1323 }
1324
1325 offset += block;
1326 if (UPGT_EEPROM_SIZE - offset < block)
1327 block = UPGT_EEPROM_SIZE - offset;
1328 }
1329
1330 UPGT_UNLOCK(sc);
1331 return (0);
1332 }
1333
1334 /*
1335 * When a rx data came in the function returns a mbuf and a rssi values.
1336 */
1337 static struct mbuf *
upgt_rxeof(struct usb_xfer * xfer,struct upgt_data * data,int * rssi)1338 upgt_rxeof(struct usb_xfer *xfer, struct upgt_data *data, int *rssi)
1339 {
1340 struct mbuf *m = NULL;
1341 struct upgt_softc *sc = usbd_xfer_softc(xfer);
1342 struct upgt_lmac_header *header;
1343 struct upgt_lmac_eeprom *eeprom;
1344 uint8_t h1_type;
1345 uint16_t h2_type;
1346 int actlen, sumlen;
1347
1348 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1349
1350 UPGT_ASSERT_LOCKED(sc);
1351
1352 if (actlen < 1)
1353 return (NULL);
1354
1355 /* Check only at the very beginning. */
1356 if (!(sc->sc_flags & UPGT_FLAG_FWLOADED) &&
1357 (memcmp(data->buf, "OK", 2) == 0)) {
1358 sc->sc_flags |= UPGT_FLAG_FWLOADED;
1359 wakeup_one(sc);
1360 return (NULL);
1361 }
1362
1363 if (actlen < (int)UPGT_RX_MINSZ)
1364 return (NULL);
1365
1366 /*
1367 * Check what type of frame came in.
1368 */
1369 header = (struct upgt_lmac_header *)(data->buf + 4);
1370
1371 h1_type = header->header1.type;
1372 h2_type = le16toh(header->header2.type);
1373
1374 if (h1_type == UPGT_H1_TYPE_CTRL && h2_type == UPGT_H2_TYPE_EEPROM) {
1375 eeprom = (struct upgt_lmac_eeprom *)(data->buf + 4);
1376 uint16_t eeprom_offset = le16toh(eeprom->offset);
1377 uint16_t eeprom_len = le16toh(eeprom->len);
1378
1379 DPRINTF(sc, UPGT_DEBUG_FW,
1380 "received EEPROM block (offset=%d, len=%d)\n",
1381 eeprom_offset, eeprom_len);
1382
1383 memcpy(sc->sc_eeprom + eeprom_offset,
1384 data->buf + sizeof(struct upgt_lmac_eeprom) + 4,
1385 eeprom_len);
1386
1387 /* EEPROM data has arrived in time, wakeup. */
1388 wakeup(sc);
1389 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1390 h2_type == UPGT_H2_TYPE_TX_DONE) {
1391 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: received 802.11 TX done\n",
1392 __func__);
1393 upgt_tx_done(sc, data->buf + 4);
1394 } else if (h1_type == UPGT_H1_TYPE_RX_DATA ||
1395 h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) {
1396 DPRINTF(sc, UPGT_DEBUG_RECV, "%s: received 802.11 RX data\n",
1397 __func__);
1398 m = upgt_rx(sc, data->buf + 4, le16toh(header->header1.len),
1399 rssi);
1400 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1401 h2_type == UPGT_H2_TYPE_STATS) {
1402 DPRINTF(sc, UPGT_DEBUG_STAT, "%s: received statistic data\n",
1403 __func__);
1404 /* TODO: what could we do with the statistic data? */
1405 } else {
1406 /* ignore unknown frame types */
1407 DPRINTF(sc, UPGT_DEBUG_INTR,
1408 "received unknown frame type 0x%02x\n",
1409 header->header1.type);
1410 }
1411 return (m);
1412 }
1413
1414 /*
1415 * The firmware awaits a checksum for each frame we send to it.
1416 * The algorithm used therefor is uncommon but somehow similar to CRC32.
1417 */
1418 static uint32_t
upgt_chksum_le(const uint32_t * buf,size_t size)1419 upgt_chksum_le(const uint32_t *buf, size_t size)
1420 {
1421 size_t i;
1422 uint32_t crc = 0;
1423
1424 for (i = 0; i < size; i += sizeof(uint32_t)) {
1425 crc = htole32(crc ^ *buf++);
1426 crc = htole32((crc >> 5) ^ (crc << 3));
1427 }
1428
1429 return (crc);
1430 }
1431
1432 static struct mbuf *
upgt_rx(struct upgt_softc * sc,uint8_t * data,int pkglen,int * rssi)1433 upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen, int *rssi)
1434 {
1435 struct ieee80211com *ic = &sc->sc_ic;
1436 struct upgt_lmac_rx_desc *rxdesc;
1437 struct mbuf *m;
1438
1439 /*
1440 * don't pass packets to the ieee80211 framework if the driver isn't
1441 * RUNNING.
1442 */
1443 if (!(sc->sc_flags & UPGT_FLAG_INITDONE))
1444 return (NULL);
1445
1446 /* access RX packet descriptor */
1447 rxdesc = (struct upgt_lmac_rx_desc *)data;
1448
1449 /* create mbuf which is suitable for strict alignment archs */
1450 KASSERT((pkglen + ETHER_ALIGN) < MCLBYTES,
1451 ("A current mbuf storage is small (%d)", pkglen + ETHER_ALIGN));
1452 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1453 if (m == NULL) {
1454 device_printf(sc->sc_dev, "could not create RX mbuf\n");
1455 return (NULL);
1456 }
1457 m_adj(m, ETHER_ALIGN);
1458 memcpy(mtod(m, char *), rxdesc->data, pkglen);
1459 /* trim FCS */
1460 m->m_len = m->m_pkthdr.len = pkglen - IEEE80211_CRC_LEN;
1461
1462 if (ieee80211_radiotap_active(ic)) {
1463 struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap;
1464
1465 tap->wr_flags = 0;
1466 tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate);
1467 tap->wr_antsignal = rxdesc->rssi;
1468 }
1469
1470 DPRINTF(sc, UPGT_DEBUG_RX_PROC, "%s: RX done\n", __func__);
1471 *rssi = rxdesc->rssi;
1472 return (m);
1473 }
1474
1475 static uint8_t
upgt_rx_rate(struct upgt_softc * sc,const int rate)1476 upgt_rx_rate(struct upgt_softc *sc, const int rate)
1477 {
1478 struct ieee80211com *ic = &sc->sc_ic;
1479 static const uint8_t cck_upgt2rate[4] = { 2, 4, 11, 22 };
1480 static const uint8_t ofdm_upgt2rate[12] =
1481 { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 };
1482
1483 if (ic->ic_curmode == IEEE80211_MODE_11B &&
1484 !(rate < 0 || rate > 3))
1485 return cck_upgt2rate[rate & 0xf];
1486
1487 if (ic->ic_curmode == IEEE80211_MODE_11G &&
1488 !(rate < 0 || rate > 11))
1489 return ofdm_upgt2rate[rate & 0xf];
1490
1491 return (0);
1492 }
1493
1494 static void
upgt_tx_done(struct upgt_softc * sc,uint8_t * data)1495 upgt_tx_done(struct upgt_softc *sc, uint8_t *data)
1496 {
1497 struct upgt_lmac_tx_done_desc *desc;
1498 int i, freed = 0;
1499
1500 UPGT_ASSERT_LOCKED(sc);
1501
1502 desc = (struct upgt_lmac_tx_done_desc *)data;
1503
1504 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1505 struct upgt_data *data_tx = &sc->sc_tx_data[i];
1506
1507 if (data_tx->addr == le32toh(desc->header2.reqid)) {
1508 upgt_mem_free(sc, data_tx->addr);
1509 data_tx->ni = NULL;
1510 data_tx->addr = 0;
1511 data_tx->m = NULL;
1512
1513 DPRINTF(sc, UPGT_DEBUG_TX_PROC,
1514 "TX done: memaddr=0x%08x, status=0x%04x, rssi=%d, ",
1515 le32toh(desc->header2.reqid),
1516 le16toh(desc->status), le16toh(desc->rssi));
1517 DPRINTF(sc, UPGT_DEBUG_TX_PROC, "seq=%d\n",
1518 le16toh(desc->seq));
1519
1520 freed++;
1521 }
1522 }
1523
1524 if (freed != 0) {
1525 UPGT_UNLOCK(sc);
1526 sc->sc_tx_timer = 0;
1527 upgt_start(sc);
1528 UPGT_LOCK(sc);
1529 }
1530 }
1531
1532 static void
upgt_mem_free(struct upgt_softc * sc,uint32_t addr)1533 upgt_mem_free(struct upgt_softc *sc, uint32_t addr)
1534 {
1535 int i;
1536
1537 for (i = 0; i < sc->sc_memory.pages; i++) {
1538 if (sc->sc_memory.page[i].addr == addr) {
1539 sc->sc_memory.page[i].used = 0;
1540 return;
1541 }
1542 }
1543
1544 device_printf(sc->sc_dev,
1545 "could not free memory address 0x%08x\n", addr);
1546 }
1547
1548 static int
upgt_fw_load(struct upgt_softc * sc)1549 upgt_fw_load(struct upgt_softc *sc)
1550 {
1551 const struct firmware *fw;
1552 struct upgt_data *data_cmd;
1553 struct upgt_fw_x2_header *x2;
1554 char start_fwload_cmd[] = { 0x3c, 0x0d };
1555 int error = 0;
1556 size_t offset;
1557 int bsize;
1558 int n;
1559 uint32_t crc32;
1560
1561 fw = firmware_get(upgt_fwname);
1562 if (fw == NULL) {
1563 device_printf(sc->sc_dev, "could not read microcode %s\n",
1564 upgt_fwname);
1565 return (EIO);
1566 }
1567
1568 UPGT_LOCK(sc);
1569
1570 /* send firmware start load command */
1571 data_cmd = upgt_getbuf(sc);
1572 if (data_cmd == NULL) {
1573 error = ENOBUFS;
1574 goto fail;
1575 }
1576 data_cmd->buflen = sizeof(start_fwload_cmd);
1577 memcpy(data_cmd->buf, start_fwload_cmd, data_cmd->buflen);
1578 upgt_bulk_tx(sc, data_cmd);
1579
1580 /* send X2 header */
1581 data_cmd = upgt_getbuf(sc);
1582 if (data_cmd == NULL) {
1583 error = ENOBUFS;
1584 goto fail;
1585 }
1586 data_cmd->buflen = sizeof(struct upgt_fw_x2_header);
1587 x2 = (struct upgt_fw_x2_header *)data_cmd->buf;
1588 memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE);
1589 x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START);
1590 x2->len = htole32(fw->datasize);
1591 x2->crc = upgt_crc32_le((uint8_t *)data_cmd->buf +
1592 UPGT_X2_SIGNATURE_SIZE,
1593 sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE -
1594 sizeof(uint32_t));
1595 upgt_bulk_tx(sc, data_cmd);
1596
1597 /* download firmware */
1598 for (offset = 0; offset < fw->datasize; offset += bsize) {
1599 if (fw->datasize - offset > UPGT_FW_BLOCK_SIZE)
1600 bsize = UPGT_FW_BLOCK_SIZE;
1601 else
1602 bsize = fw->datasize - offset;
1603
1604 data_cmd = upgt_getbuf(sc);
1605 if (data_cmd == NULL) {
1606 error = ENOBUFS;
1607 goto fail;
1608 }
1609 n = upgt_fw_copy((const uint8_t *)fw->data + offset,
1610 data_cmd->buf, bsize);
1611 data_cmd->buflen = bsize;
1612 upgt_bulk_tx(sc, data_cmd);
1613
1614 DPRINTF(sc, UPGT_DEBUG_FW, "FW offset=%zu, read=%d, sent=%d\n",
1615 offset, n, bsize);
1616 bsize = n;
1617 }
1618 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware downloaded\n", __func__);
1619
1620 /* load firmware */
1621 data_cmd = upgt_getbuf(sc);
1622 if (data_cmd == NULL) {
1623 error = ENOBUFS;
1624 goto fail;
1625 }
1626 crc32 = upgt_crc32_le(fw->data, fw->datasize);
1627 *((uint32_t *)(data_cmd->buf) ) = crc32;
1628 *((uint8_t *)(data_cmd->buf) + 4) = 'g';
1629 *((uint8_t *)(data_cmd->buf) + 5) = '\r';
1630 data_cmd->buflen = 6;
1631 upgt_bulk_tx(sc, data_cmd);
1632
1633 /* waiting 'OK' response. */
1634 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
1635 error = mtx_sleep(sc, &sc->sc_mtx, 0, "upgtfw", 2 * hz);
1636 if (error != 0) {
1637 device_printf(sc->sc_dev, "firmware load failed\n");
1638 error = EIO;
1639 }
1640
1641 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware loaded\n", __func__);
1642 fail:
1643 UPGT_UNLOCK(sc);
1644 firmware_put(fw, FIRMWARE_UNLOAD);
1645 return (error);
1646 }
1647
1648 static uint32_t
upgt_crc32_le(const void * buf,size_t size)1649 upgt_crc32_le(const void *buf, size_t size)
1650 {
1651 uint32_t crc;
1652
1653 crc = ether_crc32_le(buf, size);
1654
1655 /* apply final XOR value as common for CRC-32 */
1656 crc = htole32(crc ^ 0xffffffffU);
1657
1658 return (crc);
1659 }
1660
1661 /*
1662 * While copying the version 2 firmware, we need to replace two characters:
1663 *
1664 * 0x7e -> 0x7d 0x5e
1665 * 0x7d -> 0x7d 0x5d
1666 */
1667 static int
upgt_fw_copy(const uint8_t * src,char * dst,int size)1668 upgt_fw_copy(const uint8_t *src, char *dst, int size)
1669 {
1670 int i, j;
1671
1672 for (i = 0, j = 0; i < size && j < size; i++) {
1673 switch (src[i]) {
1674 case 0x7e:
1675 dst[j] = 0x7d;
1676 j++;
1677 dst[j] = 0x5e;
1678 j++;
1679 break;
1680 case 0x7d:
1681 dst[j] = 0x7d;
1682 j++;
1683 dst[j] = 0x5d;
1684 j++;
1685 break;
1686 default:
1687 dst[j] = src[i];
1688 j++;
1689 break;
1690 }
1691 }
1692
1693 return (i);
1694 }
1695
1696 static int
upgt_mem_init(struct upgt_softc * sc)1697 upgt_mem_init(struct upgt_softc *sc)
1698 {
1699 int i;
1700
1701 for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) {
1702 sc->sc_memory.page[i].used = 0;
1703
1704 if (i == 0) {
1705 /*
1706 * The first memory page is always reserved for
1707 * command data.
1708 */
1709 sc->sc_memory.page[i].addr =
1710 sc->sc_memaddr_frame_start + MCLBYTES;
1711 } else {
1712 sc->sc_memory.page[i].addr =
1713 sc->sc_memory.page[i - 1].addr + MCLBYTES;
1714 }
1715
1716 if (sc->sc_memory.page[i].addr + MCLBYTES >=
1717 sc->sc_memaddr_frame_end)
1718 break;
1719
1720 DPRINTF(sc, UPGT_DEBUG_FW, "memory address page %d=0x%08x\n",
1721 i, sc->sc_memory.page[i].addr);
1722 }
1723
1724 sc->sc_memory.pages = i;
1725
1726 DPRINTF(sc, UPGT_DEBUG_FW, "memory pages=%d\n", sc->sc_memory.pages);
1727 return (0);
1728 }
1729
1730 static int
upgt_fw_verify(struct upgt_softc * sc)1731 upgt_fw_verify(struct upgt_softc *sc)
1732 {
1733 const struct firmware *fw;
1734 const struct upgt_fw_bra_option *bra_opt;
1735 const struct upgt_fw_bra_descr *descr;
1736 const uint8_t *p;
1737 const uint32_t *uc;
1738 uint32_t bra_option_type, bra_option_len;
1739 size_t offset;
1740 int bra_end = 0;
1741 int error = 0;
1742
1743 fw = firmware_get(upgt_fwname);
1744 if (fw == NULL) {
1745 device_printf(sc->sc_dev, "could not read microcode %s\n",
1746 upgt_fwname);
1747 return EIO;
1748 }
1749
1750 /*
1751 * Seek to beginning of Boot Record Area (BRA).
1752 */
1753 for (offset = 0; offset < fw->datasize; offset += sizeof(*uc)) {
1754 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1755 if (*uc == 0)
1756 break;
1757 }
1758 for (; offset < fw->datasize; offset += sizeof(*uc)) {
1759 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1760 if (*uc != 0)
1761 break;
1762 }
1763 if (offset == fw->datasize) {
1764 device_printf(sc->sc_dev,
1765 "firmware Boot Record Area not found\n");
1766 error = EIO;
1767 goto fail;
1768 }
1769
1770 DPRINTF(sc, UPGT_DEBUG_FW,
1771 "firmware Boot Record Area found at offset %zu\n", offset);
1772
1773 /*
1774 * Parse Boot Record Area (BRA) options.
1775 */
1776 while (offset < fw->datasize && bra_end == 0) {
1777 /* get current BRA option */
1778 p = (const uint8_t *)fw->data + offset;
1779 bra_opt = (const struct upgt_fw_bra_option *)p;
1780 bra_option_type = le32toh(bra_opt->type);
1781 bra_option_len = le32toh(bra_opt->len) * sizeof(*uc);
1782
1783 switch (bra_option_type) {
1784 case UPGT_BRA_TYPE_FW:
1785 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_FW len=%d\n",
1786 bra_option_len);
1787
1788 if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) {
1789 device_printf(sc->sc_dev,
1790 "wrong UPGT_BRA_TYPE_FW len\n");
1791 error = EIO;
1792 goto fail;
1793 }
1794 if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_opt->data,
1795 bra_option_len) == 0) {
1796 sc->sc_fw_type = UPGT_FWTYPE_LM86;
1797 break;
1798 }
1799 if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_opt->data,
1800 bra_option_len) == 0) {
1801 sc->sc_fw_type = UPGT_FWTYPE_LM87;
1802 break;
1803 }
1804 device_printf(sc->sc_dev,
1805 "unsupported firmware type\n");
1806 error = EIO;
1807 goto fail;
1808 case UPGT_BRA_TYPE_VERSION:
1809 DPRINTF(sc, UPGT_DEBUG_FW,
1810 "UPGT_BRA_TYPE_VERSION len=%d\n", bra_option_len);
1811 break;
1812 case UPGT_BRA_TYPE_DEPIF:
1813 DPRINTF(sc, UPGT_DEBUG_FW,
1814 "UPGT_BRA_TYPE_DEPIF len=%d\n", bra_option_len);
1815 break;
1816 case UPGT_BRA_TYPE_EXPIF:
1817 DPRINTF(sc, UPGT_DEBUG_FW,
1818 "UPGT_BRA_TYPE_EXPIF len=%d\n", bra_option_len);
1819 break;
1820 case UPGT_BRA_TYPE_DESCR:
1821 DPRINTF(sc, UPGT_DEBUG_FW,
1822 "UPGT_BRA_TYPE_DESCR len=%d\n", bra_option_len);
1823
1824 descr = (const struct upgt_fw_bra_descr *)bra_opt->data;
1825
1826 sc->sc_memaddr_frame_start =
1827 le32toh(descr->memaddr_space_start);
1828 sc->sc_memaddr_frame_end =
1829 le32toh(descr->memaddr_space_end);
1830
1831 DPRINTF(sc, UPGT_DEBUG_FW,
1832 "memory address space start=0x%08x\n",
1833 sc->sc_memaddr_frame_start);
1834 DPRINTF(sc, UPGT_DEBUG_FW,
1835 "memory address space end=0x%08x\n",
1836 sc->sc_memaddr_frame_end);
1837 break;
1838 case UPGT_BRA_TYPE_END:
1839 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_END len=%d\n",
1840 bra_option_len);
1841 bra_end = 1;
1842 break;
1843 default:
1844 DPRINTF(sc, UPGT_DEBUG_FW, "unknown BRA option len=%d\n",
1845 bra_option_len);
1846 error = EIO;
1847 goto fail;
1848 }
1849
1850 /* jump to next BRA option */
1851 offset += sizeof(struct upgt_fw_bra_option) + bra_option_len;
1852 }
1853
1854 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware verified", __func__);
1855 fail:
1856 firmware_put(fw, FIRMWARE_UNLOAD);
1857 return (error);
1858 }
1859
1860 static void
upgt_bulk_tx(struct upgt_softc * sc,struct upgt_data * data)1861 upgt_bulk_tx(struct upgt_softc *sc, struct upgt_data *data)
1862 {
1863
1864 UPGT_ASSERT_LOCKED(sc);
1865
1866 STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1867 UPGT_STAT_INC(sc, st_tx_pending);
1868 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_TX]);
1869 }
1870
1871 static int
upgt_device_reset(struct upgt_softc * sc)1872 upgt_device_reset(struct upgt_softc *sc)
1873 {
1874 struct upgt_data *data;
1875 char init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e };
1876
1877 UPGT_LOCK(sc);
1878
1879 data = upgt_getbuf(sc);
1880 if (data == NULL) {
1881 UPGT_UNLOCK(sc);
1882 return (ENOBUFS);
1883 }
1884 memcpy(data->buf, init_cmd, sizeof(init_cmd));
1885 data->buflen = sizeof(init_cmd);
1886 upgt_bulk_tx(sc, data);
1887 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(100));
1888
1889 UPGT_UNLOCK(sc);
1890 DPRINTF(sc, UPGT_DEBUG_FW, "%s: device initialized\n", __func__);
1891 return (0);
1892 }
1893
1894 static int
upgt_alloc_tx(struct upgt_softc * sc)1895 upgt_alloc_tx(struct upgt_softc *sc)
1896 {
1897 int i;
1898
1899 STAILQ_INIT(&sc->sc_tx_active);
1900 STAILQ_INIT(&sc->sc_tx_inactive);
1901 STAILQ_INIT(&sc->sc_tx_pending);
1902
1903 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1904 struct upgt_data *data = &sc->sc_tx_data[i];
1905 data->buf = ((uint8_t *)sc->sc_tx_dma_buf) + (i * MCLBYTES);
1906 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
1907 UPGT_STAT_INC(sc, st_tx_inactive);
1908 }
1909
1910 return (0);
1911 }
1912
1913 static int
upgt_alloc_rx(struct upgt_softc * sc)1914 upgt_alloc_rx(struct upgt_softc *sc)
1915 {
1916 int i;
1917
1918 STAILQ_INIT(&sc->sc_rx_active);
1919 STAILQ_INIT(&sc->sc_rx_inactive);
1920
1921 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1922 struct upgt_data *data = &sc->sc_rx_data[i];
1923 data->buf = ((uint8_t *)sc->sc_rx_dma_buf) + (i * MCLBYTES);
1924 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
1925 }
1926 return (0);
1927 }
1928
1929 static int
upgt_detach(device_t dev)1930 upgt_detach(device_t dev)
1931 {
1932 struct upgt_softc *sc = device_get_softc(dev);
1933 struct ieee80211com *ic = &sc->sc_ic;
1934 unsigned x;
1935
1936 /*
1937 * Prevent further allocations from RX/TX/CMD
1938 * data lists and ioctls
1939 */
1940 UPGT_LOCK(sc);
1941 sc->sc_flags |= UPGT_FLAG_DETACHED;
1942
1943 STAILQ_INIT(&sc->sc_tx_active);
1944 STAILQ_INIT(&sc->sc_tx_inactive);
1945 STAILQ_INIT(&sc->sc_tx_pending);
1946
1947 STAILQ_INIT(&sc->sc_rx_active);
1948 STAILQ_INIT(&sc->sc_rx_inactive);
1949
1950 upgt_stop(sc);
1951 UPGT_UNLOCK(sc);
1952
1953 callout_drain(&sc->sc_led_ch);
1954 callout_drain(&sc->sc_watchdog_ch);
1955
1956 /* drain USB transfers */
1957 for (x = 0; x != UPGT_N_XFERS; x++)
1958 usbd_transfer_drain(sc->sc_xfer[x]);
1959
1960 /* free data buffers */
1961 UPGT_LOCK(sc);
1962 upgt_free_rx(sc);
1963 upgt_free_tx(sc);
1964 UPGT_UNLOCK(sc);
1965
1966 /* free USB transfers and some data buffers */
1967 usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
1968
1969 ieee80211_ifdetach(ic);
1970 mbufq_drain(&sc->sc_snd);
1971 mtx_destroy(&sc->sc_mtx);
1972
1973 return (0);
1974 }
1975
1976 static void
upgt_free_rx(struct upgt_softc * sc)1977 upgt_free_rx(struct upgt_softc *sc)
1978 {
1979 int i;
1980
1981 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1982 struct upgt_data *data = &sc->sc_rx_data[i];
1983
1984 data->buf = NULL;
1985 data->ni = NULL;
1986 }
1987 }
1988
1989 static void
upgt_free_tx(struct upgt_softc * sc)1990 upgt_free_tx(struct upgt_softc *sc)
1991 {
1992 int i;
1993
1994 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1995 struct upgt_data *data = &sc->sc_tx_data[i];
1996
1997 if (data->ni != NULL)
1998 ieee80211_free_node(data->ni);
1999
2000 data->buf = NULL;
2001 data->ni = NULL;
2002 }
2003 }
2004
2005 static void
upgt_abort_xfers_locked(struct upgt_softc * sc)2006 upgt_abort_xfers_locked(struct upgt_softc *sc)
2007 {
2008 int i;
2009
2010 UPGT_ASSERT_LOCKED(sc);
2011 /* abort any pending transfers */
2012 for (i = 0; i < UPGT_N_XFERS; i++)
2013 usbd_transfer_stop(sc->sc_xfer[i]);
2014 }
2015
2016 static void
upgt_abort_xfers(struct upgt_softc * sc)2017 upgt_abort_xfers(struct upgt_softc *sc)
2018 {
2019
2020 UPGT_LOCK(sc);
2021 upgt_abort_xfers_locked(sc);
2022 UPGT_UNLOCK(sc);
2023 }
2024
2025 #define UPGT_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2026 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2027
2028 static void
upgt_sysctl_node(struct upgt_softc * sc)2029 upgt_sysctl_node(struct upgt_softc *sc)
2030 {
2031 struct sysctl_ctx_list *ctx;
2032 struct sysctl_oid_list *child;
2033 struct sysctl_oid *tree;
2034 struct upgt_stat *stats;
2035
2036 stats = &sc->sc_stat;
2037 ctx = device_get_sysctl_ctx(sc->sc_dev);
2038 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev));
2039
2040 tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats",
2041 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "UPGT statistics");
2042 child = SYSCTL_CHILDREN(tree);
2043 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_active",
2044 &stats->st_tx_active, "Active numbers in TX queue");
2045 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_inactive",
2046 &stats->st_tx_inactive, "Inactive numbers in TX queue");
2047 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_pending",
2048 &stats->st_tx_pending, "Pending numbers in TX queue");
2049 }
2050
2051 #undef UPGT_SYSCTL_STAT_ADD32
2052
2053 static struct upgt_data *
_upgt_getbuf(struct upgt_softc * sc)2054 _upgt_getbuf(struct upgt_softc *sc)
2055 {
2056 struct upgt_data *bf;
2057
2058 bf = STAILQ_FIRST(&sc->sc_tx_inactive);
2059 if (bf != NULL) {
2060 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next);
2061 UPGT_STAT_DEC(sc, st_tx_inactive);
2062 } else
2063 bf = NULL;
2064 if (bf == NULL)
2065 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: %s\n", __func__,
2066 "out of xmit buffers");
2067 return (bf);
2068 }
2069
2070 static struct upgt_data *
upgt_getbuf(struct upgt_softc * sc)2071 upgt_getbuf(struct upgt_softc *sc)
2072 {
2073 struct upgt_data *bf;
2074
2075 UPGT_ASSERT_LOCKED(sc);
2076
2077 bf = _upgt_getbuf(sc);
2078 if (bf == NULL)
2079 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: stop queue\n", __func__);
2080
2081 return (bf);
2082 }
2083
2084 static struct upgt_data *
upgt_gettxbuf(struct upgt_softc * sc)2085 upgt_gettxbuf(struct upgt_softc *sc)
2086 {
2087 struct upgt_data *bf;
2088
2089 UPGT_ASSERT_LOCKED(sc);
2090
2091 bf = upgt_getbuf(sc);
2092 if (bf == NULL)
2093 return (NULL);
2094
2095 bf->addr = upgt_mem_alloc(sc);
2096 if (bf->addr == 0) {
2097 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: no free prism memory!\n",
2098 __func__);
2099 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
2100 UPGT_STAT_INC(sc, st_tx_inactive);
2101 return (NULL);
2102 }
2103 return (bf);
2104 }
2105
2106 static int
upgt_tx_start(struct upgt_softc * sc,struct mbuf * m,struct ieee80211_node * ni,struct upgt_data * data)2107 upgt_tx_start(struct upgt_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2108 struct upgt_data *data)
2109 {
2110 struct ieee80211vap *vap = ni->ni_vap;
2111 int error = 0, len;
2112 struct ieee80211_frame *wh;
2113 struct ieee80211_key *k;
2114 struct upgt_lmac_mem *mem;
2115 struct upgt_lmac_tx_desc *txdesc;
2116
2117 UPGT_ASSERT_LOCKED(sc);
2118
2119 upgt_set_led(sc, UPGT_LED_BLINK);
2120
2121 /* Assign sequence number */
2122 ieee80211_output_seqno_assign(ni, -1, m);
2123
2124 /*
2125 * Software crypto.
2126 */
2127 wh = mtod(m, struct ieee80211_frame *);
2128 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2129 k = ieee80211_crypto_encap(ni, m);
2130 if (k == NULL) {
2131 device_printf(sc->sc_dev,
2132 "ieee80211_crypto_encap returns NULL.\n");
2133 error = EIO;
2134 goto done;
2135 }
2136
2137 /* in case packet header moved, reset pointer */
2138 wh = mtod(m, struct ieee80211_frame *);
2139 }
2140
2141 /* Transmit the URB containing the TX data. */
2142 memset(data->buf, 0, MCLBYTES);
2143 mem = (struct upgt_lmac_mem *)data->buf;
2144 mem->addr = htole32(data->addr);
2145 txdesc = (struct upgt_lmac_tx_desc *)(mem + 1);
2146
2147 if (IEEE80211_IS_MGMT(wh)) {
2148 /* mgmt frames */
2149 txdesc->header1.flags = UPGT_H1_FLAGS_TX_MGMT;
2150 /* always send mgmt frames at lowest rate (DS1) */
2151 memset(txdesc->rates, 0x10, sizeof(txdesc->rates));
2152 } else {
2153 /* data frames */
2154 txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA;
2155 memcpy(txdesc->rates, sc->sc_cur_rateset, sizeof(txdesc->rates));
2156 }
2157 txdesc->header1.type = UPGT_H1_TYPE_TX_DATA;
2158 txdesc->header1.len = htole16(m->m_pkthdr.len);
2159 txdesc->header2.reqid = htole32(data->addr);
2160 txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES);
2161 txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES);
2162 txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA);
2163 txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE;
2164
2165 if (ieee80211_radiotap_active_vap(vap)) {
2166 struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
2167
2168 tap->wt_flags = 0;
2169 tap->wt_rate = 0; /* XXX where to get from? */
2170
2171 ieee80211_radiotap_tx(vap, m);
2172 }
2173
2174 /* copy frame below our TX descriptor header */
2175 m_copydata(m, 0, m->m_pkthdr.len,
2176 data->buf + (sizeof(*mem) + sizeof(*txdesc)));
2177 /* calculate frame size */
2178 len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len;
2179 /* we need to align the frame to a 4 byte boundary */
2180 len = (len + 3) & ~3;
2181 /* calculate frame checksum */
2182 mem->chksum = upgt_chksum_le((uint32_t *)txdesc, len - sizeof(*mem));
2183 data->ni = ni;
2184 data->m = m;
2185 data->buflen = len;
2186
2187 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: TX start data sending (%d bytes)\n",
2188 __func__, len);
2189 KASSERT(len <= MCLBYTES, ("mbuf is small for saving data"));
2190
2191 upgt_bulk_tx(sc, data);
2192 done:
2193 /*
2194 * If we don't regulary read the device statistics, the RX queue
2195 * will stall. It's strange, but it works, so we keep reading
2196 * the statistics here. *shrug*
2197 */
2198 if (!(if_getcounter(vap->iv_ifp, IFCOUNTER_OPACKETS) %
2199 UPGT_TX_STAT_INTERVAL))
2200 upgt_get_stats(sc);
2201
2202 return (error);
2203 }
2204
2205 static void
upgt_bulk_rx_callback(struct usb_xfer * xfer,usb_error_t error)2206 upgt_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2207 {
2208 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2209 struct ieee80211com *ic = &sc->sc_ic;
2210 struct ieee80211_frame *wh;
2211 struct ieee80211_node *ni;
2212 struct mbuf *m = NULL;
2213 struct upgt_data *data;
2214 int8_t nf;
2215 int rssi = -1;
2216
2217 UPGT_ASSERT_LOCKED(sc);
2218
2219 switch (USB_GET_STATE(xfer)) {
2220 case USB_ST_TRANSFERRED:
2221 data = STAILQ_FIRST(&sc->sc_rx_active);
2222 if (data == NULL)
2223 goto setup;
2224 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2225 m = upgt_rxeof(xfer, data, &rssi);
2226 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2227 /* FALLTHROUGH */
2228 case USB_ST_SETUP:
2229 setup:
2230 data = STAILQ_FIRST(&sc->sc_rx_inactive);
2231 if (data == NULL)
2232 return;
2233 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
2234 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
2235 usbd_xfer_set_frame_data(xfer, 0, data->buf, MCLBYTES);
2236 usbd_transfer_submit(xfer);
2237
2238 /*
2239 * To avoid LOR we should unlock our private mutex here to call
2240 * ieee80211_input() because here is at the end of a USB
2241 * callback and safe to unlock.
2242 */
2243 UPGT_UNLOCK(sc);
2244 if (m != NULL) {
2245 wh = mtod(m, struct ieee80211_frame *);
2246 ni = ieee80211_find_rxnode(ic,
2247 (struct ieee80211_frame_min *)wh);
2248 nf = -95; /* XXX */
2249 if (ni != NULL) {
2250 (void) ieee80211_input(ni, m, rssi, nf);
2251 /* node is no longer needed */
2252 ieee80211_free_node(ni);
2253 } else
2254 (void) ieee80211_input_all(ic, m, rssi, nf);
2255 m = NULL;
2256 }
2257 UPGT_LOCK(sc);
2258 upgt_start(sc);
2259 break;
2260 default:
2261 /* needs it to the inactive queue due to a error. */
2262 data = STAILQ_FIRST(&sc->sc_rx_active);
2263 if (data != NULL) {
2264 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2265 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2266 }
2267 if (error != USB_ERR_CANCELLED) {
2268 usbd_xfer_set_stall(xfer);
2269 counter_u64_add(ic->ic_ierrors, 1);
2270 goto setup;
2271 }
2272 break;
2273 }
2274 }
2275
2276 static void
upgt_bulk_tx_callback(struct usb_xfer * xfer,usb_error_t error)2277 upgt_bulk_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2278 {
2279 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2280 struct upgt_data *data;
2281
2282 UPGT_ASSERT_LOCKED(sc);
2283 switch (USB_GET_STATE(xfer)) {
2284 case USB_ST_TRANSFERRED:
2285 data = STAILQ_FIRST(&sc->sc_tx_active);
2286 if (data == NULL)
2287 goto setup;
2288 STAILQ_REMOVE_HEAD(&sc->sc_tx_active, next);
2289 UPGT_STAT_DEC(sc, st_tx_active);
2290 upgt_txeof(xfer, data);
2291 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
2292 UPGT_STAT_INC(sc, st_tx_inactive);
2293 /* FALLTHROUGH */
2294 case USB_ST_SETUP:
2295 setup:
2296 data = STAILQ_FIRST(&sc->sc_tx_pending);
2297 if (data == NULL) {
2298 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: empty pending queue\n",
2299 __func__);
2300 return;
2301 }
2302 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending, next);
2303 UPGT_STAT_DEC(sc, st_tx_pending);
2304 STAILQ_INSERT_TAIL(&sc->sc_tx_active, data, next);
2305 UPGT_STAT_INC(sc, st_tx_active);
2306
2307 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen);
2308 usbd_transfer_submit(xfer);
2309 upgt_start(sc);
2310 break;
2311 default:
2312 data = STAILQ_FIRST(&sc->sc_tx_active);
2313 if (data == NULL)
2314 goto setup;
2315 if (data->ni != NULL) {
2316 if_inc_counter(data->ni->ni_vap->iv_ifp,
2317 IFCOUNTER_OERRORS, 1);
2318 ieee80211_free_node(data->ni);
2319 data->ni = NULL;
2320 }
2321 if (error != USB_ERR_CANCELLED) {
2322 usbd_xfer_set_stall(xfer);
2323 goto setup;
2324 }
2325 break;
2326 }
2327 }
2328
2329 static device_method_t upgt_methods[] = {
2330 /* Device interface */
2331 DEVMETHOD(device_probe, upgt_match),
2332 DEVMETHOD(device_attach, upgt_attach),
2333 DEVMETHOD(device_detach, upgt_detach),
2334 DEVMETHOD_END
2335 };
2336
2337 static driver_t upgt_driver = {
2338 .name = "upgt",
2339 .methods = upgt_methods,
2340 .size = sizeof(struct upgt_softc)
2341 };
2342
2343 DRIVER_MODULE(if_upgt, uhub, upgt_driver, NULL, NULL);
2344 MODULE_VERSION(if_upgt, 1);
2345 MODULE_DEPEND(if_upgt, usb, 1, 1, 1);
2346 MODULE_DEPEND(if_upgt, wlan, 1, 1, 1);
2347 MODULE_DEPEND(if_upgt, upgtfw_fw, 1, 1, 1);
2348 USB_PNP_HOST_INFO(upgt_devs);
2349