if_upgt.c revision 228621
1234370Sjasone/*	$OpenBSD: if_upgt.c,v 1.35 2008/04/16 18:32:15 damien Exp $ */
2234370Sjasone/*	$FreeBSD: head/sys/dev/usb/wlan/if_upgt.c 228621 2011-12-17 10:23:17Z bschmidt $ */
3234370Sjasone
4245868Sjasone/*
5234370Sjasone * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
6234370Sjasone *
7245868Sjasone * Permission to use, copy, modify, and distribute this software for any
8234370Sjasone * purpose with or without fee is hereby granted, provided that the above
9234370Sjasone * copyright notice and this permission notice appear in all copies.
10234370Sjasone *
11234370Sjasone * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12234370Sjasone * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13234370Sjasone * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14234370Sjasone * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15234370Sjasone * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16234370Sjasone * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17234370Sjasone * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18234370Sjasone */
19234370Sjasone
20234370Sjasone#include <sys/param.h>
21234370Sjasone#include <sys/systm.h>
22234370Sjasone#include <sys/kernel.h>
23234370Sjasone#include <sys/endian.h>
24234370Sjasone#include <sys/firmware.h>
25234370Sjasone#include <sys/linker.h>
26234370Sjasone#include <sys/mbuf.h>
27234370Sjasone#include <sys/malloc.h>
28#include <sys/module.h>
29#include <sys/socket.h>
30#include <sys/sockio.h>
31#include <sys/sysctl.h>
32
33#include <net/if.h>
34#include <net/if_arp.h>
35#include <net/ethernet.h>
36#include <net/if_dl.h>
37#include <net/if_media.h>
38#include <net/if_types.h>
39
40#include <sys/bus.h>
41#include <machine/bus.h>
42
43#include <net80211/ieee80211_var.h>
44#include <net80211/ieee80211_phy.h>
45#include <net80211/ieee80211_radiotap.h>
46#include <net80211/ieee80211_regdomain.h>
47
48#include <net/bpf.h>
49
50#include <dev/usb/usb.h>
51#include <dev/usb/usbdi.h>
52#include "usbdevs.h"
53
54#include <dev/usb/wlan/if_upgtvar.h>
55
56/*
57 * Driver for the USB PrismGT devices.
58 *
59 * For now just USB 2.0 devices with the GW3887 chipset are supported.
60 * The driver has been written based on the firmware version 2.13.1.0_LM87.
61 *
62 * TODO's:
63 * - MONITOR mode test.
64 * - Add HOSTAP mode.
65 * - Add IBSS mode.
66 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets).
67 *
68 * Parts of this driver has been influenced by reading the p54u driver
69 * written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and
70 * Sebastien Bourdeauducq <lekernel@prism54.org>.
71 */
72
73static SYSCTL_NODE(_hw, OID_AUTO, upgt, CTLFLAG_RD, 0,
74    "USB PrismGT GW3887 driver parameters");
75
76#ifdef UPGT_DEBUG
77int upgt_debug = 0;
78SYSCTL_INT(_hw_upgt, OID_AUTO, debug, CTLFLAG_RW, &upgt_debug,
79	    0, "control debugging printfs");
80TUNABLE_INT("hw.upgt.debug", &upgt_debug);
81enum {
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 */
106static device_probe_t upgt_match;
107static device_attach_t upgt_attach;
108static device_detach_t upgt_detach;
109static int	upgt_alloc_tx(struct upgt_softc *);
110static int	upgt_alloc_rx(struct upgt_softc *);
111static int	upgt_device_reset(struct upgt_softc *);
112static void	upgt_bulk_tx(struct upgt_softc *, struct upgt_data *);
113static int	upgt_fw_verify(struct upgt_softc *);
114static int	upgt_mem_init(struct upgt_softc *);
115static int	upgt_fw_load(struct upgt_softc *);
116static int	upgt_fw_copy(const uint8_t *, char *, int);
117static uint32_t	upgt_crc32_le(const void *, size_t);
118static struct mbuf *
119		upgt_rxeof(struct usb_xfer *, struct upgt_data *, int *);
120static struct mbuf *
121		upgt_rx(struct upgt_softc *, uint8_t *, int, int *);
122static void	upgt_txeof(struct usb_xfer *, struct upgt_data *);
123static int	upgt_eeprom_read(struct upgt_softc *);
124static int	upgt_eeprom_parse(struct upgt_softc *);
125static void	upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *);
126static void	upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int);
127static void	upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int);
128static void	upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int);
129static uint32_t	upgt_chksum_le(const uint32_t *, size_t);
130static void	upgt_tx_done(struct upgt_softc *, uint8_t *);
131static void	upgt_init(void *);
132static void	upgt_init_locked(struct upgt_softc *);
133static int	upgt_ioctl(struct ifnet *, u_long, caddr_t);
134static void	upgt_start(struct ifnet *);
135static int	upgt_raw_xmit(struct ieee80211_node *, struct mbuf *,
136		    const struct ieee80211_bpf_params *);
137static void	upgt_scan_start(struct ieee80211com *);
138static void	upgt_scan_end(struct ieee80211com *);
139static void	upgt_set_channel(struct ieee80211com *);
140static 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]);
144static void	upgt_vap_delete(struct ieee80211vap *);
145static void	upgt_update_mcast(struct ifnet *);
146static uint8_t	upgt_rx_rate(struct upgt_softc *, const int);
147static void	upgt_set_multi(void *);
148static void	upgt_stop(struct upgt_softc *);
149static void	upgt_setup_rates(struct ieee80211vap *, struct ieee80211com *);
150static int	upgt_set_macfilter(struct upgt_softc *, uint8_t);
151static int	upgt_newstate(struct ieee80211vap *, enum ieee80211_state, int);
152static void	upgt_set_chan(struct upgt_softc *, struct ieee80211_channel *);
153static void	upgt_set_led(struct upgt_softc *, int);
154static void	upgt_set_led_blink(void *);
155static void	upgt_get_stats(struct upgt_softc *);
156static void	upgt_mem_free(struct upgt_softc *, uint32_t);
157static uint32_t	upgt_mem_alloc(struct upgt_softc *);
158static void	upgt_free_tx(struct upgt_softc *);
159static void	upgt_free_rx(struct upgt_softc *);
160static void	upgt_watchdog(void *);
161static void	upgt_abort_xfers(struct upgt_softc *);
162static void	upgt_abort_xfers_locked(struct upgt_softc *);
163static void	upgt_sysctl_node(struct upgt_softc *);
164static struct upgt_data *
165		upgt_getbuf(struct upgt_softc *);
166static struct upgt_data *
167		upgt_gettxbuf(struct upgt_softc *);
168static int	upgt_tx_start(struct upgt_softc *, struct mbuf *,
169		    struct ieee80211_node *, struct upgt_data *);
170
171static const char *upgt_fwname = "upgt-gw3887";
172
173static 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,	WG111V2_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
196static usb_callback_t upgt_bulk_rx_callback;
197static usb_callback_t upgt_bulk_tx_callback;
198
199static 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,
205		.flags = {
206			.ext_buffer = 1,
207			.force_short_xfer = 1,
208			.pipe_bof = 1
209		},
210		.callback = upgt_bulk_tx_callback,
211		.timeout = UPGT_USB_TIMEOUT,	/* ms */
212	},
213	[UPGT_BULK_RX] = {
214		.type = UE_BULK,
215		.endpoint = UE_ADDR_ANY,
216		.direction = UE_DIR_IN,
217		.bufsize = MCLBYTES,
218		.flags = {
219			.ext_buffer = 1,
220			.pipe_bof = 1,
221			.short_xfer_ok = 1
222		},
223		.callback = upgt_bulk_rx_callback,
224	},
225};
226
227static int
228upgt_match(device_t dev)
229{
230	struct usb_attach_arg *uaa = device_get_ivars(dev);
231
232	if (uaa->usb_mode != USB_MODE_HOST)
233		return (ENXIO);
234	if (uaa->info.bConfigIndex != UPGT_CONFIG_INDEX)
235		return (ENXIO);
236	if (uaa->info.bIfaceIndex != UPGT_IFACE_INDEX)
237		return (ENXIO);
238
239	return (usbd_lookup_id_by_uaa(upgt_devs, sizeof(upgt_devs), uaa));
240}
241
242static int
243upgt_attach(device_t dev)
244{
245	int error;
246	struct ieee80211com *ic;
247	struct ifnet *ifp;
248	struct upgt_softc *sc = device_get_softc(dev);
249	struct usb_attach_arg *uaa = device_get_ivars(dev);
250	uint8_t bands, iface_index = UPGT_IFACE_INDEX;
251
252	sc->sc_dev = dev;
253	sc->sc_udev = uaa->device;
254#ifdef UPGT_DEBUG
255	sc->sc_debug = upgt_debug;
256#endif
257	device_set_usb_desc(dev);
258
259	mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
260	    MTX_DEF);
261	callout_init(&sc->sc_led_ch, 0);
262	callout_init(&sc->sc_watchdog_ch, 0);
263
264	/* Allocate TX and RX xfers.  */
265	error = upgt_alloc_tx(sc);
266	if (error)
267		goto fail1;
268	error = upgt_alloc_rx(sc);
269	if (error)
270		goto fail2;
271
272	error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
273	    upgt_config, UPGT_N_XFERS, sc, &sc->sc_mtx);
274	if (error) {
275		device_printf(dev, "could not allocate USB transfers, "
276		    "err=%s\n", usbd_errstr(error));
277		goto fail3;
278	}
279
280	ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
281	if (ifp == NULL) {
282		device_printf(dev, "can not if_alloc()\n");
283		goto fail4;
284	}
285
286	/* Initialize the device.  */
287	error = upgt_device_reset(sc);
288	if (error)
289		goto fail5;
290	/* Verify the firmware.  */
291	error = upgt_fw_verify(sc);
292	if (error)
293		goto fail5;
294	/* Calculate device memory space.  */
295	if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) {
296		device_printf(dev,
297		    "could not find memory space addresses on FW\n");
298		error = EIO;
299		goto fail5;
300	}
301	sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1;
302	sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1;
303
304	DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame start=0x%08x\n",
305	    sc->sc_memaddr_frame_start);
306	DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame end=0x%08x\n",
307	    sc->sc_memaddr_frame_end);
308	DPRINTF(sc, UPGT_DEBUG_FW, "memory address rx start=0x%08x\n",
309	    sc->sc_memaddr_rx_start);
310
311	upgt_mem_init(sc);
312
313	/* Load the firmware.  */
314	error = upgt_fw_load(sc);
315	if (error)
316		goto fail5;
317
318	/* Read the whole EEPROM content and parse it.  */
319	error = upgt_eeprom_read(sc);
320	if (error)
321		goto fail5;
322	error = upgt_eeprom_parse(sc);
323	if (error)
324		goto fail5;
325
326	/* all works related with the device have done here. */
327	upgt_abort_xfers(sc);
328
329	/* Setup the 802.11 device.  */
330	ifp->if_softc = sc;
331	if_initname(ifp, "upgt", device_get_unit(sc->sc_dev));
332	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
333	ifp->if_init = upgt_init;
334	ifp->if_ioctl = upgt_ioctl;
335	ifp->if_start = upgt_start;
336	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
337	IFQ_SET_READY(&ifp->if_snd);
338
339	ic = ifp->if_l2com;
340	ic->ic_ifp = ifp;
341	ic->ic_phytype = IEEE80211_T_OFDM;	/* not only, but not used */
342	ic->ic_opmode = IEEE80211_M_STA;
343	/* set device capabilities */
344	ic->ic_caps =
345		  IEEE80211_C_STA		/* station mode */
346		| IEEE80211_C_MONITOR		/* monitor mode */
347		| IEEE80211_C_SHPREAMBLE	/* short preamble supported */
348	        | IEEE80211_C_SHSLOT		/* short slot time supported */
349		| IEEE80211_C_BGSCAN		/* capable of bg scanning */
350	        | IEEE80211_C_WPA		/* 802.11i */
351		;
352
353	bands = 0;
354	setbit(&bands, IEEE80211_MODE_11B);
355	setbit(&bands, IEEE80211_MODE_11G);
356	ieee80211_init_channels(ic, NULL, &bands);
357
358	ieee80211_ifattach(ic, sc->sc_myaddr);
359	ic->ic_raw_xmit = upgt_raw_xmit;
360	ic->ic_scan_start = upgt_scan_start;
361	ic->ic_scan_end = upgt_scan_end;
362	ic->ic_set_channel = upgt_set_channel;
363
364	ic->ic_vap_create = upgt_vap_create;
365	ic->ic_vap_delete = upgt_vap_delete;
366	ic->ic_update_mcast = upgt_update_mcast;
367
368	ieee80211_radiotap_attach(ic,
369	    &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
370		UPGT_TX_RADIOTAP_PRESENT,
371	    &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
372		UPGT_RX_RADIOTAP_PRESENT);
373
374	upgt_sysctl_node(sc);
375
376	if (bootverbose)
377		ieee80211_announce(ic);
378
379	return (0);
380
381fail5:	if_free(ifp);
382fail4:	usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
383fail3:	upgt_free_rx(sc);
384fail2:	upgt_free_tx(sc);
385fail1:	mtx_destroy(&sc->sc_mtx);
386
387	return (error);
388}
389
390static void
391upgt_txeof(struct usb_xfer *xfer, struct upgt_data *data)
392{
393	struct upgt_softc *sc = usbd_xfer_softc(xfer);
394	struct ifnet *ifp = sc->sc_ifp;
395	struct mbuf *m;
396
397	UPGT_ASSERT_LOCKED(sc);
398
399	/*
400	 * Do any tx complete callback.  Note this must be done before releasing
401	 * the node reference.
402	 */
403	if (data->m) {
404		m = data->m;
405		if (m->m_flags & M_TXCB) {
406			/* XXX status? */
407			ieee80211_process_callback(data->ni, m, 0);
408		}
409		m_freem(m);
410		data->m = NULL;
411	}
412	if (data->ni) {
413		ieee80211_free_node(data->ni);
414		data->ni = NULL;
415	}
416	ifp->if_opackets++;
417}
418
419static void
420upgt_get_stats(struct upgt_softc *sc)
421{
422	struct upgt_data *data_cmd;
423	struct upgt_lmac_mem *mem;
424	struct upgt_lmac_stats *stats;
425
426	data_cmd = upgt_getbuf(sc);
427	if (data_cmd == NULL) {
428		device_printf(sc->sc_dev, "%s: out of buffer.\n", __func__);
429		return;
430	}
431
432	/*
433	 * Transmit the URB containing the CMD data.
434	 */
435	memset(data_cmd->buf, 0, MCLBYTES);
436
437	mem = (struct upgt_lmac_mem *)data_cmd->buf;
438	mem->addr = htole32(sc->sc_memaddr_frame_start +
439	    UPGT_MEMSIZE_FRAME_HEAD);
440
441	stats = (struct upgt_lmac_stats *)(mem + 1);
442
443	stats->header1.flags = 0;
444	stats->header1.type = UPGT_H1_TYPE_CTRL;
445	stats->header1.len = htole16(
446	    sizeof(struct upgt_lmac_stats) - sizeof(struct upgt_lmac_header));
447
448	stats->header2.reqid = htole32(sc->sc_memaddr_frame_start);
449	stats->header2.type = htole16(UPGT_H2_TYPE_STATS);
450	stats->header2.flags = 0;
451
452	data_cmd->buflen = sizeof(*mem) + sizeof(*stats);
453
454	mem->chksum = upgt_chksum_le((uint32_t *)stats,
455	    data_cmd->buflen - sizeof(*mem));
456
457	upgt_bulk_tx(sc, data_cmd);
458}
459
460static int
461upgt_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
462{
463	struct upgt_softc *sc = ifp->if_softc;
464	struct ieee80211com *ic = ifp->if_l2com;
465	struct ifreq *ifr = (struct ifreq *) data;
466	int error = 0, startall = 0;
467
468	switch (cmd) {
469	case SIOCSIFFLAGS:
470		if (ifp->if_flags & IFF_UP) {
471			if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
472				if ((ifp->if_flags ^ sc->sc_if_flags) &
473				    (IFF_ALLMULTI | IFF_PROMISC))
474					upgt_set_multi(sc);
475			} else {
476				upgt_init(sc);
477				startall = 1;
478			}
479		} else {
480			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
481				upgt_stop(sc);
482		}
483		sc->sc_if_flags = ifp->if_flags;
484		if (startall)
485			ieee80211_start_all(ic);
486		break;
487	case SIOCGIFMEDIA:
488		error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
489		break;
490	case SIOCGIFADDR:
491		error = ether_ioctl(ifp, cmd, data);
492		break;
493	default:
494		error = EINVAL;
495		break;
496	}
497	return error;
498}
499
500static void
501upgt_stop_locked(struct upgt_softc *sc)
502{
503	struct ifnet *ifp = sc->sc_ifp;
504
505	UPGT_ASSERT_LOCKED(sc);
506
507	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
508		upgt_set_macfilter(sc, IEEE80211_S_INIT);
509	upgt_abort_xfers_locked(sc);
510}
511
512static void
513upgt_stop(struct upgt_softc *sc)
514{
515	struct ifnet *ifp = sc->sc_ifp;
516
517	UPGT_LOCK(sc);
518	upgt_stop_locked(sc);
519	UPGT_UNLOCK(sc);
520
521	/* device down */
522	sc->sc_tx_timer = 0;
523	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
524	sc->sc_flags &= ~UPGT_FLAG_INITDONE;
525}
526
527static void
528upgt_set_led(struct upgt_softc *sc, int action)
529{
530	struct upgt_data *data_cmd;
531	struct upgt_lmac_mem *mem;
532	struct upgt_lmac_led *led;
533
534	data_cmd = upgt_getbuf(sc);
535	if (data_cmd == NULL) {
536		device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
537		return;
538	}
539
540	/*
541	 * Transmit the URB containing the CMD data.
542	 */
543	memset(data_cmd->buf, 0, MCLBYTES);
544
545	mem = (struct upgt_lmac_mem *)data_cmd->buf;
546	mem->addr = htole32(sc->sc_memaddr_frame_start +
547	    UPGT_MEMSIZE_FRAME_HEAD);
548
549	led = (struct upgt_lmac_led *)(mem + 1);
550
551	led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
552	led->header1.type = UPGT_H1_TYPE_CTRL;
553	led->header1.len = htole16(
554	    sizeof(struct upgt_lmac_led) -
555	    sizeof(struct upgt_lmac_header));
556
557	led->header2.reqid = htole32(sc->sc_memaddr_frame_start);
558	led->header2.type = htole16(UPGT_H2_TYPE_LED);
559	led->header2.flags = 0;
560
561	switch (action) {
562	case UPGT_LED_OFF:
563		led->mode = htole16(UPGT_LED_MODE_SET);
564		led->action_fix = 0;
565		led->action_tmp = htole16(UPGT_LED_ACTION_OFF);
566		led->action_tmp_dur = 0;
567		break;
568	case UPGT_LED_ON:
569		led->mode = htole16(UPGT_LED_MODE_SET);
570		led->action_fix = 0;
571		led->action_tmp = htole16(UPGT_LED_ACTION_ON);
572		led->action_tmp_dur = 0;
573		break;
574	case UPGT_LED_BLINK:
575		if (sc->sc_state != IEEE80211_S_RUN) {
576			STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
577			return;
578		}
579		if (sc->sc_led_blink) {
580			/* previous blink was not finished */
581			STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
582			return;
583		}
584		led->mode = htole16(UPGT_LED_MODE_SET);
585		led->action_fix = htole16(UPGT_LED_ACTION_OFF);
586		led->action_tmp = htole16(UPGT_LED_ACTION_ON);
587		led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR);
588		/* lock blink */
589		sc->sc_led_blink = 1;
590		callout_reset(&sc->sc_led_ch, hz, upgt_set_led_blink, sc);
591		break;
592	default:
593		STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
594		return;
595	}
596
597	data_cmd->buflen = sizeof(*mem) + sizeof(*led);
598
599	mem->chksum = upgt_chksum_le((uint32_t *)led,
600	    data_cmd->buflen - sizeof(*mem));
601
602	upgt_bulk_tx(sc, data_cmd);
603}
604
605static void
606upgt_set_led_blink(void *arg)
607{
608	struct upgt_softc *sc = arg;
609
610	/* blink finished, we are ready for a next one */
611	sc->sc_led_blink = 0;
612}
613
614static void
615upgt_init(void *priv)
616{
617	struct upgt_softc *sc = priv;
618	struct ifnet *ifp = sc->sc_ifp;
619	struct ieee80211com *ic = ifp->if_l2com;
620
621	UPGT_LOCK(sc);
622	upgt_init_locked(sc);
623	UPGT_UNLOCK(sc);
624
625	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
626		ieee80211_start_all(ic);		/* start all vap's */
627}
628
629static void
630upgt_init_locked(struct upgt_softc *sc)
631{
632	struct ifnet *ifp = sc->sc_ifp;
633
634	UPGT_ASSERT_LOCKED(sc);
635
636	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
637		upgt_stop_locked(sc);
638
639	usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
640
641	(void)upgt_set_macfilter(sc, IEEE80211_S_SCAN);
642
643	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
644	ifp->if_drv_flags |= IFF_DRV_RUNNING;
645	sc->sc_flags |= UPGT_FLAG_INITDONE;
646
647	callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
648}
649
650static int
651upgt_set_macfilter(struct upgt_softc *sc, uint8_t state)
652{
653	struct ifnet *ifp = sc->sc_ifp;
654	struct ieee80211com *ic = ifp->if_l2com;
655	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
656	struct ieee80211_node *ni;
657	struct upgt_data *data_cmd;
658	struct upgt_lmac_mem *mem;
659	struct upgt_lmac_filter *filter;
660	uint8_t broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
661
662	UPGT_ASSERT_LOCKED(sc);
663
664	data_cmd = upgt_getbuf(sc);
665	if (data_cmd == NULL) {
666		device_printf(sc->sc_dev, "out of TX buffers.\n");
667		return (ENOBUFS);
668	}
669
670	/*
671	 * Transmit the URB containing the CMD data.
672	 */
673	memset(data_cmd->buf, 0, MCLBYTES);
674
675	mem = (struct upgt_lmac_mem *)data_cmd->buf;
676	mem->addr = htole32(sc->sc_memaddr_frame_start +
677	    UPGT_MEMSIZE_FRAME_HEAD);
678
679	filter = (struct upgt_lmac_filter *)(mem + 1);
680
681	filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
682	filter->header1.type = UPGT_H1_TYPE_CTRL;
683	filter->header1.len = htole16(
684	    sizeof(struct upgt_lmac_filter) -
685	    sizeof(struct upgt_lmac_header));
686
687	filter->header2.reqid = htole32(sc->sc_memaddr_frame_start);
688	filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER);
689	filter->header2.flags = 0;
690
691	switch (state) {
692	case IEEE80211_S_INIT:
693		DPRINTF(sc, UPGT_DEBUG_STATE, "%s: set MAC filter to INIT\n",
694		    __func__);
695		filter->type = htole16(UPGT_FILTER_TYPE_RESET);
696		break;
697	case IEEE80211_S_SCAN:
698		DPRINTF(sc, UPGT_DEBUG_STATE,
699		    "set MAC filter to SCAN (bssid %s)\n",
700		    ether_sprintf(broadcast));
701		filter->type = htole16(UPGT_FILTER_TYPE_NONE);
702		IEEE80211_ADDR_COPY(filter->dst, sc->sc_myaddr);
703		IEEE80211_ADDR_COPY(filter->src, broadcast);
704		filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
705		filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
706		filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
707		filter->rxhw = htole32(sc->sc_eeprom_hwrx);
708		filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
709		break;
710	case IEEE80211_S_RUN:
711		ni = ieee80211_ref_node(vap->iv_bss);
712		/* XXX monitor mode isn't tested yet.  */
713		if (vap->iv_opmode == IEEE80211_M_MONITOR) {
714			filter->type = htole16(UPGT_FILTER_TYPE_MONITOR);
715			IEEE80211_ADDR_COPY(filter->dst, sc->sc_myaddr);
716			IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
717			filter->unknown1 = htole16(UPGT_FILTER_MONITOR_UNKNOWN1);
718			filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
719			filter->unknown2 = htole16(UPGT_FILTER_MONITOR_UNKNOWN2);
720			filter->rxhw = htole32(sc->sc_eeprom_hwrx);
721			filter->unknown3 = htole16(UPGT_FILTER_MONITOR_UNKNOWN3);
722		} else {
723			DPRINTF(sc, UPGT_DEBUG_STATE,
724			    "set MAC filter to RUN (bssid %s)\n",
725			    ether_sprintf(ni->ni_bssid));
726			filter->type = htole16(UPGT_FILTER_TYPE_STA);
727			IEEE80211_ADDR_COPY(filter->dst, sc->sc_myaddr);
728			IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
729			filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
730			filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
731			filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
732			filter->rxhw = htole32(sc->sc_eeprom_hwrx);
733			filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
734		}
735		ieee80211_free_node(ni);
736		break;
737	default:
738		device_printf(sc->sc_dev,
739		    "MAC filter does not know that state\n");
740		break;
741	}
742
743	data_cmd->buflen = sizeof(*mem) + sizeof(*filter);
744
745	mem->chksum = upgt_chksum_le((uint32_t *)filter,
746	    data_cmd->buflen - sizeof(*mem));
747
748	upgt_bulk_tx(sc, data_cmd);
749
750	return (0);
751}
752
753static void
754upgt_setup_rates(struct ieee80211vap *vap, struct ieee80211com *ic)
755{
756	struct ifnet *ifp = ic->ic_ifp;
757	struct upgt_softc *sc = ifp->if_softc;
758	const struct ieee80211_txparam *tp;
759
760	/*
761	 * 0x01 = OFMD6   0x10 = DS1
762	 * 0x04 = OFDM9   0x11 = DS2
763	 * 0x06 = OFDM12  0x12 = DS5
764	 * 0x07 = OFDM18  0x13 = DS11
765	 * 0x08 = OFDM24
766	 * 0x09 = OFDM36
767	 * 0x0a = OFDM48
768	 * 0x0b = OFDM54
769	 */
770	const uint8_t rateset_auto_11b[] =
771	    { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 };
772	const uint8_t rateset_auto_11g[] =
773	    { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 };
774	const uint8_t rateset_fix_11bg[] =
775	    { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07,
776	      0x08, 0x09, 0x0a, 0x0b };
777
778	tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
779
780	/* XXX */
781	if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
782		/*
783		 * Automatic rate control is done by the device.
784		 * We just pass the rateset from which the device
785		 * will pickup a rate.
786		 */
787		if (ic->ic_curmode == IEEE80211_MODE_11B)
788			memcpy(sc->sc_cur_rateset, rateset_auto_11b,
789			    sizeof(sc->sc_cur_rateset));
790		if (ic->ic_curmode == IEEE80211_MODE_11G ||
791		    ic->ic_curmode == IEEE80211_MODE_AUTO)
792			memcpy(sc->sc_cur_rateset, rateset_auto_11g,
793			    sizeof(sc->sc_cur_rateset));
794	} else {
795		/* set a fixed rate */
796		memset(sc->sc_cur_rateset, rateset_fix_11bg[tp->ucastrate],
797		    sizeof(sc->sc_cur_rateset));
798	}
799}
800
801static void
802upgt_set_multi(void *arg)
803{
804	struct upgt_softc *sc = arg;
805	struct ifnet *ifp = sc->sc_ifp;
806
807	if (!(ifp->if_flags & IFF_UP))
808		return;
809
810	/*
811	 * XXX don't know how to set a device.  Lack of docs.  Just try to set
812	 * IFF_ALLMULTI flag here.
813	 */
814	ifp->if_flags |= IFF_ALLMULTI;
815}
816
817static void
818upgt_start(struct ifnet *ifp)
819{
820	struct upgt_softc *sc = ifp->if_softc;
821	struct upgt_data *data_tx;
822	struct ieee80211_node *ni;
823	struct mbuf *m;
824
825	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
826		return;
827
828	UPGT_LOCK(sc);
829	for (;;) {
830		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
831		if (m == NULL)
832			break;
833
834		data_tx = upgt_gettxbuf(sc);
835		if (data_tx == NULL) {
836			IFQ_DRV_PREPEND(&ifp->if_snd, m);
837			break;
838		}
839
840		ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
841		m->m_pkthdr.rcvif = NULL;
842
843		if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
844			STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
845			UPGT_STAT_INC(sc, st_tx_inactive);
846			ieee80211_free_node(ni);
847			ifp->if_oerrors++;
848			continue;
849		}
850		sc->sc_tx_timer = 5;
851	}
852	UPGT_UNLOCK(sc);
853}
854
855static int
856upgt_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
857	const struct ieee80211_bpf_params *params)
858{
859	struct ieee80211com *ic = ni->ni_ic;
860	struct ifnet *ifp = ic->ic_ifp;
861	struct upgt_softc *sc = ifp->if_softc;
862	struct upgt_data *data_tx = NULL;
863
864	/* prevent management frames from being sent if we're not ready */
865	if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
866		m_freem(m);
867		ieee80211_free_node(ni);
868		return ENETDOWN;
869	}
870
871	UPGT_LOCK(sc);
872	data_tx = upgt_gettxbuf(sc);
873	if (data_tx == NULL) {
874		ieee80211_free_node(ni);
875		m_freem(m);
876		UPGT_UNLOCK(sc);
877		return (ENOBUFS);
878	}
879
880	if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
881		STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
882		UPGT_STAT_INC(sc, st_tx_inactive);
883		ieee80211_free_node(ni);
884		ifp->if_oerrors++;
885		UPGT_UNLOCK(sc);
886		return (EIO);
887	}
888	UPGT_UNLOCK(sc);
889
890	sc->sc_tx_timer = 5;
891	return (0);
892}
893
894static void
895upgt_watchdog(void *arg)
896{
897	struct upgt_softc *sc = arg;
898	struct ifnet *ifp = sc->sc_ifp;
899
900	if (sc->sc_tx_timer > 0) {
901		if (--sc->sc_tx_timer == 0) {
902			device_printf(sc->sc_dev, "watchdog timeout\n");
903			/* upgt_init(ifp); XXX needs a process context ? */
904			ifp->if_oerrors++;
905			return;
906		}
907		callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
908	}
909}
910
911static uint32_t
912upgt_mem_alloc(struct upgt_softc *sc)
913{
914	int i;
915
916	for (i = 0; i < sc->sc_memory.pages; i++) {
917		if (sc->sc_memory.page[i].used == 0) {
918			sc->sc_memory.page[i].used = 1;
919			return (sc->sc_memory.page[i].addr);
920		}
921	}
922
923	return (0);
924}
925
926static void
927upgt_scan_start(struct ieee80211com *ic)
928{
929	/* do nothing.  */
930}
931
932static void
933upgt_scan_end(struct ieee80211com *ic)
934{
935	/* do nothing.  */
936}
937
938static void
939upgt_set_channel(struct ieee80211com *ic)
940{
941	struct upgt_softc *sc = ic->ic_ifp->if_softc;
942
943	UPGT_LOCK(sc);
944	upgt_set_chan(sc, ic->ic_curchan);
945	UPGT_UNLOCK(sc);
946}
947
948static void
949upgt_set_chan(struct upgt_softc *sc, struct ieee80211_channel *c)
950{
951	struct ifnet *ifp = sc->sc_ifp;
952	struct ieee80211com *ic = ifp->if_l2com;
953	struct upgt_data *data_cmd;
954	struct upgt_lmac_mem *mem;
955	struct upgt_lmac_channel *chan;
956	int channel;
957
958	UPGT_ASSERT_LOCKED(sc);
959
960	channel = ieee80211_chan2ieee(ic, c);
961	if (channel == 0 || channel == IEEE80211_CHAN_ANY) {
962		/* XXX should NEVER happen */
963		device_printf(sc->sc_dev,
964		    "%s: invalid channel %x\n", __func__, channel);
965		return;
966	}
967
968	DPRINTF(sc, UPGT_DEBUG_STATE, "%s: channel %d\n", __func__, channel);
969
970	data_cmd = upgt_getbuf(sc);
971	if (data_cmd == NULL) {
972		device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
973		return;
974	}
975	/*
976	 * Transmit the URB containing the CMD data.
977	 */
978	memset(data_cmd->buf, 0, MCLBYTES);
979
980	mem = (struct upgt_lmac_mem *)data_cmd->buf;
981	mem->addr = htole32(sc->sc_memaddr_frame_start +
982	    UPGT_MEMSIZE_FRAME_HEAD);
983
984	chan = (struct upgt_lmac_channel *)(mem + 1);
985
986	chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
987	chan->header1.type = UPGT_H1_TYPE_CTRL;
988	chan->header1.len = htole16(
989	    sizeof(struct upgt_lmac_channel) - sizeof(struct upgt_lmac_header));
990
991	chan->header2.reqid = htole32(sc->sc_memaddr_frame_start);
992	chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL);
993	chan->header2.flags = 0;
994
995	chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1);
996	chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2);
997	chan->freq6 = sc->sc_eeprom_freq6[channel];
998	chan->settings = sc->sc_eeprom_freq6_settings;
999	chan->unknown3 = UPGT_CHANNEL_UNKNOWN3;
1000
1001	memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data,
1002	    sizeof(chan->freq3_1));
1003	memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel],
1004	    sizeof(sc->sc_eeprom_freq4[channel]));
1005	memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data,
1006	    sizeof(chan->freq3_2));
1007
1008	data_cmd->buflen = sizeof(*mem) + sizeof(*chan);
1009
1010	mem->chksum = upgt_chksum_le((uint32_t *)chan,
1011	    data_cmd->buflen - sizeof(*mem));
1012
1013	upgt_bulk_tx(sc, data_cmd);
1014}
1015
1016static struct ieee80211vap *
1017upgt_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
1018    enum ieee80211_opmode opmode, int flags,
1019    const uint8_t bssid[IEEE80211_ADDR_LEN],
1020    const uint8_t mac[IEEE80211_ADDR_LEN])
1021{
1022	struct upgt_vap *uvp;
1023	struct ieee80211vap *vap;
1024
1025	if (!TAILQ_EMPTY(&ic->ic_vaps))		/* only one at a time */
1026		return NULL;
1027	uvp = (struct upgt_vap *) malloc(sizeof(struct upgt_vap),
1028	    M_80211_VAP, M_NOWAIT | M_ZERO);
1029	if (uvp == NULL)
1030		return NULL;
1031	vap = &uvp->vap;
1032	/* enable s/w bmiss handling for sta mode */
1033	ieee80211_vap_setup(ic, vap, name, unit, opmode,
1034	    flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
1035
1036	/* override state transition machine */
1037	uvp->newstate = vap->iv_newstate;
1038	vap->iv_newstate = upgt_newstate;
1039
1040	/* setup device rates */
1041	upgt_setup_rates(vap, ic);
1042
1043	/* complete setup */
1044	ieee80211_vap_attach(vap, ieee80211_media_change,
1045	    ieee80211_media_status);
1046	ic->ic_opmode = opmode;
1047	return vap;
1048}
1049
1050static int
1051upgt_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1052{
1053	struct upgt_vap *uvp = UPGT_VAP(vap);
1054	struct ieee80211com *ic = vap->iv_ic;
1055	struct upgt_softc *sc = ic->ic_ifp->if_softc;
1056
1057	/* do it in a process context */
1058	sc->sc_state = nstate;
1059
1060	IEEE80211_UNLOCK(ic);
1061	UPGT_LOCK(sc);
1062	callout_stop(&sc->sc_led_ch);
1063	callout_stop(&sc->sc_watchdog_ch);
1064
1065	switch (nstate) {
1066	case IEEE80211_S_INIT:
1067		/* do not accept any frames if the device is down */
1068		(void)upgt_set_macfilter(sc, sc->sc_state);
1069		upgt_set_led(sc, UPGT_LED_OFF);
1070		break;
1071	case IEEE80211_S_SCAN:
1072		upgt_set_chan(sc, ic->ic_curchan);
1073		break;
1074	case IEEE80211_S_AUTH:
1075		upgt_set_chan(sc, ic->ic_curchan);
1076		break;
1077	case IEEE80211_S_ASSOC:
1078		break;
1079	case IEEE80211_S_RUN:
1080		upgt_set_macfilter(sc, sc->sc_state);
1081		upgt_set_led(sc, UPGT_LED_ON);
1082		break;
1083	default:
1084		break;
1085	}
1086	UPGT_UNLOCK(sc);
1087	IEEE80211_LOCK(ic);
1088	return (uvp->newstate(vap, nstate, arg));
1089}
1090
1091static void
1092upgt_vap_delete(struct ieee80211vap *vap)
1093{
1094	struct upgt_vap *uvp = UPGT_VAP(vap);
1095
1096	ieee80211_vap_detach(vap);
1097	free(uvp, M_80211_VAP);
1098}
1099
1100static void
1101upgt_update_mcast(struct ifnet *ifp)
1102{
1103	struct upgt_softc *sc = ifp->if_softc;
1104
1105	upgt_set_multi(sc);
1106}
1107
1108static int
1109upgt_eeprom_parse(struct upgt_softc *sc)
1110{
1111	struct upgt_eeprom_header *eeprom_header;
1112	struct upgt_eeprom_option *eeprom_option;
1113	uint16_t option_len;
1114	uint16_t option_type;
1115	uint16_t preamble_len;
1116	int option_end = 0;
1117
1118	/* calculate eeprom options start offset */
1119	eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom;
1120	preamble_len = le16toh(eeprom_header->preamble_len);
1121	eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom +
1122	    (sizeof(struct upgt_eeprom_header) + preamble_len));
1123
1124	while (!option_end) {
1125		/* the eeprom option length is stored in words */
1126		option_len =
1127		    (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t);
1128		option_type =
1129		    le16toh(eeprom_option->type);
1130
1131		switch (option_type) {
1132		case UPGT_EEPROM_TYPE_NAME:
1133			DPRINTF(sc, UPGT_DEBUG_FW,
1134			    "EEPROM name len=%d\n", option_len);
1135			break;
1136		case UPGT_EEPROM_TYPE_SERIAL:
1137			DPRINTF(sc, UPGT_DEBUG_FW,
1138			    "EEPROM serial len=%d\n", option_len);
1139			break;
1140		case UPGT_EEPROM_TYPE_MAC:
1141			DPRINTF(sc, UPGT_DEBUG_FW,
1142			    "EEPROM mac len=%d\n", option_len);
1143
1144			IEEE80211_ADDR_COPY(sc->sc_myaddr, eeprom_option->data);
1145			break;
1146		case UPGT_EEPROM_TYPE_HWRX:
1147			DPRINTF(sc, UPGT_DEBUG_FW,
1148			    "EEPROM hwrx len=%d\n", option_len);
1149
1150			upgt_eeprom_parse_hwrx(sc, eeprom_option->data);
1151			break;
1152		case UPGT_EEPROM_TYPE_CHIP:
1153			DPRINTF(sc, UPGT_DEBUG_FW,
1154			    "EEPROM chip len=%d\n", option_len);
1155			break;
1156		case UPGT_EEPROM_TYPE_FREQ3:
1157			DPRINTF(sc, UPGT_DEBUG_FW,
1158			    "EEPROM freq3 len=%d\n", option_len);
1159
1160			upgt_eeprom_parse_freq3(sc, eeprom_option->data,
1161			    option_len);
1162			break;
1163		case UPGT_EEPROM_TYPE_FREQ4:
1164			DPRINTF(sc, UPGT_DEBUG_FW,
1165			    "EEPROM freq4 len=%d\n", option_len);
1166
1167			upgt_eeprom_parse_freq4(sc, eeprom_option->data,
1168			    option_len);
1169			break;
1170		case UPGT_EEPROM_TYPE_FREQ5:
1171			DPRINTF(sc, UPGT_DEBUG_FW,
1172			    "EEPROM freq5 len=%d\n", option_len);
1173			break;
1174		case UPGT_EEPROM_TYPE_FREQ6:
1175			DPRINTF(sc, UPGT_DEBUG_FW,
1176			    "EEPROM freq6 len=%d\n", option_len);
1177
1178			upgt_eeprom_parse_freq6(sc, eeprom_option->data,
1179			    option_len);
1180			break;
1181		case UPGT_EEPROM_TYPE_END:
1182			DPRINTF(sc, UPGT_DEBUG_FW,
1183			    "EEPROM end len=%d\n", option_len);
1184			option_end = 1;
1185			break;
1186		case UPGT_EEPROM_TYPE_OFF:
1187			DPRINTF(sc, UPGT_DEBUG_FW,
1188			    "%s: EEPROM off without end option\n", __func__);
1189			return (EIO);
1190		default:
1191			DPRINTF(sc, UPGT_DEBUG_FW,
1192			    "EEPROM unknown type 0x%04x len=%d\n",
1193			    option_type, option_len);
1194			break;
1195		}
1196
1197		/* jump to next EEPROM option */
1198		eeprom_option = (struct upgt_eeprom_option *)
1199		    (eeprom_option->data + option_len);
1200	}
1201
1202	return (0);
1203}
1204
1205static void
1206upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len)
1207{
1208	struct upgt_eeprom_freq3_header *freq3_header;
1209	struct upgt_lmac_freq3 *freq3;
1210	int i, elements, flags;
1211	unsigned channel;
1212
1213	freq3_header = (struct upgt_eeprom_freq3_header *)data;
1214	freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1);
1215
1216	flags = freq3_header->flags;
1217	elements = freq3_header->elements;
1218
1219	DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d\n",
1220	    flags, elements);
1221
1222	for (i = 0; i < elements; i++) {
1223		channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0);
1224		if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
1225			continue;
1226
1227		sc->sc_eeprom_freq3[channel] = freq3[i];
1228
1229		DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1230		    le16toh(sc->sc_eeprom_freq3[channel].freq), channel);
1231	}
1232}
1233
1234void
1235upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len)
1236{
1237	struct upgt_eeprom_freq4_header *freq4_header;
1238	struct upgt_eeprom_freq4_1 *freq4_1;
1239	struct upgt_eeprom_freq4_2 *freq4_2;
1240	int i, j, elements, settings, flags;
1241	unsigned channel;
1242
1243	freq4_header = (struct upgt_eeprom_freq4_header *)data;
1244	freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1);
1245	flags = freq4_header->flags;
1246	elements = freq4_header->elements;
1247	settings = freq4_header->settings;
1248
1249	/* we need this value later */
1250	sc->sc_eeprom_freq6_settings = freq4_header->settings;
1251
1252	DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d settings=%d\n",
1253	    flags, elements, settings);
1254
1255	for (i = 0; i < elements; i++) {
1256		channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0);
1257		if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
1258			continue;
1259
1260		freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data;
1261		for (j = 0; j < settings; j++) {
1262			sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j];
1263			sc->sc_eeprom_freq4[channel][j].pad = 0;
1264		}
1265
1266		DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1267		    le16toh(freq4_1[i].freq), channel);
1268	}
1269}
1270
1271void
1272upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len)
1273{
1274	struct upgt_lmac_freq6 *freq6;
1275	int i, elements;
1276	unsigned channel;
1277
1278	freq6 = (struct upgt_lmac_freq6 *)data;
1279	elements = len / sizeof(struct upgt_lmac_freq6);
1280
1281	DPRINTF(sc, UPGT_DEBUG_FW, "elements=%d\n", elements);
1282
1283	for (i = 0; i < elements; i++) {
1284		channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0);
1285		if (!(channel >= 0 && channel < IEEE80211_CHAN_MAX))
1286			continue;
1287
1288		sc->sc_eeprom_freq6[channel] = freq6[i];
1289
1290		DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1291		    le16toh(sc->sc_eeprom_freq6[channel].freq), channel);
1292	}
1293}
1294
1295static void
1296upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data)
1297{
1298	struct upgt_eeprom_option_hwrx *option_hwrx;
1299
1300	option_hwrx = (struct upgt_eeprom_option_hwrx *)data;
1301
1302	sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST;
1303
1304	DPRINTF(sc, UPGT_DEBUG_FW, "hwrx option value=0x%04x\n",
1305	    sc->sc_eeprom_hwrx);
1306}
1307
1308static int
1309upgt_eeprom_read(struct upgt_softc *sc)
1310{
1311	struct upgt_data *data_cmd;
1312	struct upgt_lmac_mem *mem;
1313	struct upgt_lmac_eeprom	*eeprom;
1314	int block, error, offset;
1315
1316	UPGT_LOCK(sc);
1317	usb_pause_mtx(&sc->sc_mtx, 100);
1318
1319	offset = 0;
1320	block = UPGT_EEPROM_BLOCK_SIZE;
1321	while (offset < UPGT_EEPROM_SIZE) {
1322		DPRINTF(sc, UPGT_DEBUG_FW,
1323		    "request EEPROM block (offset=%d, len=%d)\n", offset, block);
1324
1325		data_cmd = upgt_getbuf(sc);
1326		if (data_cmd == NULL) {
1327			UPGT_UNLOCK(sc);
1328			return (ENOBUFS);
1329		}
1330
1331		/*
1332		 * Transmit the URB containing the CMD data.
1333		 */
1334		memset(data_cmd->buf, 0, MCLBYTES);
1335
1336		mem = (struct upgt_lmac_mem *)data_cmd->buf;
1337		mem->addr = htole32(sc->sc_memaddr_frame_start +
1338		    UPGT_MEMSIZE_FRAME_HEAD);
1339
1340		eeprom = (struct upgt_lmac_eeprom *)(mem + 1);
1341		eeprom->header1.flags = 0;
1342		eeprom->header1.type = UPGT_H1_TYPE_CTRL;
1343		eeprom->header1.len = htole16((
1344		    sizeof(struct upgt_lmac_eeprom) -
1345		    sizeof(struct upgt_lmac_header)) + block);
1346
1347		eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start);
1348		eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM);
1349		eeprom->header2.flags = 0;
1350
1351		eeprom->offset = htole16(offset);
1352		eeprom->len = htole16(block);
1353
1354		data_cmd->buflen = sizeof(*mem) + sizeof(*eeprom) + block;
1355
1356		mem->chksum = upgt_chksum_le((uint32_t *)eeprom,
1357		    data_cmd->buflen - sizeof(*mem));
1358		upgt_bulk_tx(sc, data_cmd);
1359
1360		error = mtx_sleep(sc, &sc->sc_mtx, 0, "eeprom_request", hz);
1361		if (error != 0) {
1362			device_printf(sc->sc_dev,
1363			    "timeout while waiting for EEPROM data\n");
1364			UPGT_UNLOCK(sc);
1365			return (EIO);
1366		}
1367
1368		offset += block;
1369		if (UPGT_EEPROM_SIZE - offset < block)
1370			block = UPGT_EEPROM_SIZE - offset;
1371	}
1372
1373	UPGT_UNLOCK(sc);
1374	return (0);
1375}
1376
1377/*
1378 * When a rx data came in the function returns a mbuf and a rssi values.
1379 */
1380static struct mbuf *
1381upgt_rxeof(struct usb_xfer *xfer, struct upgt_data *data, int *rssi)
1382{
1383	struct mbuf *m = NULL;
1384	struct upgt_softc *sc = usbd_xfer_softc(xfer);
1385	struct upgt_lmac_header *header;
1386	struct upgt_lmac_eeprom *eeprom;
1387	uint8_t h1_type;
1388	uint16_t h2_type;
1389	int actlen, sumlen;
1390
1391	usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1392
1393	UPGT_ASSERT_LOCKED(sc);
1394
1395	if (actlen < 1)
1396		return (NULL);
1397
1398	/* Check only at the very beginning.  */
1399	if (!(sc->sc_flags & UPGT_FLAG_FWLOADED) &&
1400	    (memcmp(data->buf, "OK", 2) == 0)) {
1401		sc->sc_flags |= UPGT_FLAG_FWLOADED;
1402		wakeup_one(sc);
1403		return (NULL);
1404	}
1405
1406	if (actlen < UPGT_RX_MINSZ)
1407		return (NULL);
1408
1409	/*
1410	 * Check what type of frame came in.
1411	 */
1412	header = (struct upgt_lmac_header *)(data->buf + 4);
1413
1414	h1_type = header->header1.type;
1415	h2_type = le16toh(header->header2.type);
1416
1417	if (h1_type == UPGT_H1_TYPE_CTRL && h2_type == UPGT_H2_TYPE_EEPROM) {
1418		eeprom = (struct upgt_lmac_eeprom *)(data->buf + 4);
1419		uint16_t eeprom_offset = le16toh(eeprom->offset);
1420		uint16_t eeprom_len = le16toh(eeprom->len);
1421
1422		DPRINTF(sc, UPGT_DEBUG_FW,
1423		    "received EEPROM block (offset=%d, len=%d)\n",
1424		    eeprom_offset, eeprom_len);
1425
1426		memcpy(sc->sc_eeprom + eeprom_offset,
1427		    data->buf + sizeof(struct upgt_lmac_eeprom) + 4,
1428		    eeprom_len);
1429
1430		/* EEPROM data has arrived in time, wakeup.  */
1431		wakeup(sc);
1432	} else if (h1_type == UPGT_H1_TYPE_CTRL &&
1433	    h2_type == UPGT_H2_TYPE_TX_DONE) {
1434		DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: received 802.11 TX done\n",
1435		    __func__);
1436		upgt_tx_done(sc, data->buf + 4);
1437	} else if (h1_type == UPGT_H1_TYPE_RX_DATA ||
1438	    h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) {
1439		DPRINTF(sc, UPGT_DEBUG_RECV, "%s: received 802.11 RX data\n",
1440		    __func__);
1441		m = upgt_rx(sc, data->buf + 4, le16toh(header->header1.len),
1442		    rssi);
1443	} else if (h1_type == UPGT_H1_TYPE_CTRL &&
1444	    h2_type == UPGT_H2_TYPE_STATS) {
1445		DPRINTF(sc, UPGT_DEBUG_STAT, "%s: received statistic data\n",
1446		    __func__);
1447		/* TODO: what could we do with the statistic data? */
1448	} else {
1449		/* ignore unknown frame types */
1450		DPRINTF(sc, UPGT_DEBUG_INTR,
1451		    "received unknown frame type 0x%02x\n",
1452		    header->header1.type);
1453	}
1454	return (m);
1455}
1456
1457/*
1458 * The firmware awaits a checksum for each frame we send to it.
1459 * The algorithm used therefor is uncommon but somehow similar to CRC32.
1460 */
1461static uint32_t
1462upgt_chksum_le(const uint32_t *buf, size_t size)
1463{
1464	int i;
1465	uint32_t crc = 0;
1466
1467	for (i = 0; i < size; i += sizeof(uint32_t)) {
1468		crc = htole32(crc ^ *buf++);
1469		crc = htole32((crc >> 5) ^ (crc << 3));
1470	}
1471
1472	return (crc);
1473}
1474
1475static struct mbuf *
1476upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen, int *rssi)
1477{
1478	struct ifnet *ifp = sc->sc_ifp;
1479	struct ieee80211com *ic = ifp->if_l2com;
1480	struct upgt_lmac_rx_desc *rxdesc;
1481	struct mbuf *m;
1482
1483	/*
1484	 * don't pass packets to the ieee80211 framework if the driver isn't
1485	 * RUNNING.
1486	 */
1487	if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1488		return (NULL);
1489
1490	/* access RX packet descriptor */
1491	rxdesc = (struct upgt_lmac_rx_desc *)data;
1492
1493	/* create mbuf which is suitable for strict alignment archs */
1494	KASSERT((pkglen + ETHER_ALIGN) < MCLBYTES,
1495	    ("A current mbuf storage is small (%d)", pkglen + ETHER_ALIGN));
1496	m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
1497	if (m == NULL) {
1498		device_printf(sc->sc_dev, "could not create RX mbuf\n");
1499		return (NULL);
1500	}
1501	m_adj(m, ETHER_ALIGN);
1502	memcpy(mtod(m, char *), rxdesc->data, pkglen);
1503	/* trim FCS */
1504	m->m_len = m->m_pkthdr.len = pkglen - IEEE80211_CRC_LEN;
1505	m->m_pkthdr.rcvif = ifp;
1506
1507	if (ieee80211_radiotap_active(ic)) {
1508		struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap;
1509
1510		tap->wr_flags = 0;
1511		tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate);
1512		tap->wr_antsignal = rxdesc->rssi;
1513	}
1514	ifp->if_ipackets++;
1515
1516	DPRINTF(sc, UPGT_DEBUG_RX_PROC, "%s: RX done\n", __func__);
1517	*rssi = rxdesc->rssi;
1518	return (m);
1519}
1520
1521static uint8_t
1522upgt_rx_rate(struct upgt_softc *sc, const int rate)
1523{
1524	struct ifnet *ifp = sc->sc_ifp;
1525	struct ieee80211com *ic = ifp->if_l2com;
1526	static const uint8_t cck_upgt2rate[4] = { 2, 4, 11, 22 };
1527	static const uint8_t ofdm_upgt2rate[12] =
1528	    { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 };
1529
1530	if (ic->ic_curmode == IEEE80211_MODE_11B &&
1531	    !(rate < 0 || rate > 3))
1532		return cck_upgt2rate[rate & 0xf];
1533
1534	if (ic->ic_curmode == IEEE80211_MODE_11G &&
1535	    !(rate < 0 || rate > 11))
1536		return ofdm_upgt2rate[rate & 0xf];
1537
1538	return (0);
1539}
1540
1541static void
1542upgt_tx_done(struct upgt_softc *sc, uint8_t *data)
1543{
1544	struct ifnet *ifp = sc->sc_ifp;
1545	struct upgt_lmac_tx_done_desc *desc;
1546	int i, freed = 0;
1547
1548	UPGT_ASSERT_LOCKED(sc);
1549
1550	desc = (struct upgt_lmac_tx_done_desc *)data;
1551
1552	for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1553		struct upgt_data *data_tx = &sc->sc_tx_data[i];
1554
1555		if (data_tx->addr == le32toh(desc->header2.reqid)) {
1556			upgt_mem_free(sc, data_tx->addr);
1557			data_tx->ni = NULL;
1558			data_tx->addr = 0;
1559			data_tx->m = NULL;
1560			data_tx->use = 0;
1561
1562			DPRINTF(sc, UPGT_DEBUG_TX_PROC,
1563			    "TX done: memaddr=0x%08x, status=0x%04x, rssi=%d, ",
1564			    le32toh(desc->header2.reqid),
1565			    le16toh(desc->status), le16toh(desc->rssi));
1566			DPRINTF(sc, UPGT_DEBUG_TX_PROC, "seq=%d\n",
1567			    le16toh(desc->seq));
1568
1569			freed++;
1570		}
1571	}
1572
1573	if (freed != 0) {
1574		sc->sc_tx_timer = 0;
1575		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1576		UPGT_UNLOCK(sc);
1577		upgt_start(ifp);
1578		UPGT_LOCK(sc);
1579	}
1580}
1581
1582static void
1583upgt_mem_free(struct upgt_softc *sc, uint32_t addr)
1584{
1585	int i;
1586
1587	for (i = 0; i < sc->sc_memory.pages; i++) {
1588		if (sc->sc_memory.page[i].addr == addr) {
1589			sc->sc_memory.page[i].used = 0;
1590			return;
1591		}
1592	}
1593
1594	device_printf(sc->sc_dev,
1595	    "could not free memory address 0x%08x\n", addr);
1596}
1597
1598static int
1599upgt_fw_load(struct upgt_softc *sc)
1600{
1601	const struct firmware *fw;
1602	struct upgt_data *data_cmd;
1603	struct upgt_fw_x2_header *x2;
1604	char start_fwload_cmd[] = { 0x3c, 0x0d };
1605	int error = 0, offset, bsize, n;
1606	uint32_t crc32;
1607
1608	fw = firmware_get(upgt_fwname);
1609	if (fw == NULL) {
1610		device_printf(sc->sc_dev, "could not read microcode %s\n",
1611		    upgt_fwname);
1612		return (EIO);
1613	}
1614
1615	UPGT_LOCK(sc);
1616
1617	/* send firmware start load command */
1618	data_cmd = upgt_getbuf(sc);
1619	if (data_cmd == NULL) {
1620		error = ENOBUFS;
1621		goto fail;
1622	}
1623	data_cmd->buflen = sizeof(start_fwload_cmd);
1624	memcpy(data_cmd->buf, start_fwload_cmd, data_cmd->buflen);
1625	upgt_bulk_tx(sc, data_cmd);
1626
1627	/* send X2 header */
1628	data_cmd = upgt_getbuf(sc);
1629	if (data_cmd == NULL) {
1630		error = ENOBUFS;
1631		goto fail;
1632	}
1633	data_cmd->buflen = sizeof(struct upgt_fw_x2_header);
1634	x2 = (struct upgt_fw_x2_header *)data_cmd->buf;
1635	memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE);
1636	x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START);
1637	x2->len = htole32(fw->datasize);
1638	x2->crc = upgt_crc32_le((uint8_t *)data_cmd->buf +
1639	    UPGT_X2_SIGNATURE_SIZE,
1640	    sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE -
1641	    sizeof(uint32_t));
1642	upgt_bulk_tx(sc, data_cmd);
1643
1644	/* download firmware */
1645	for (offset = 0; offset < fw->datasize; offset += bsize) {
1646		if (fw->datasize - offset > UPGT_FW_BLOCK_SIZE)
1647			bsize = UPGT_FW_BLOCK_SIZE;
1648		else
1649			bsize = fw->datasize - offset;
1650
1651		data_cmd = upgt_getbuf(sc);
1652		if (data_cmd == NULL) {
1653			error = ENOBUFS;
1654			goto fail;
1655		}
1656		n = upgt_fw_copy((const uint8_t *)fw->data + offset,
1657		    data_cmd->buf, bsize);
1658		data_cmd->buflen = bsize;
1659		upgt_bulk_tx(sc, data_cmd);
1660
1661		DPRINTF(sc, UPGT_DEBUG_FW, "FW offset=%d, read=%d, sent=%d\n",
1662		    offset, n, bsize);
1663		bsize = n;
1664	}
1665	DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware downloaded\n", __func__);
1666
1667	/* load firmware */
1668	data_cmd = upgt_getbuf(sc);
1669	if (data_cmd == NULL) {
1670		error = ENOBUFS;
1671		goto fail;
1672	}
1673	crc32 = upgt_crc32_le(fw->data, fw->datasize);
1674	*((uint32_t *)(data_cmd->buf)    ) = crc32;
1675	*((uint8_t  *)(data_cmd->buf) + 4) = 'g';
1676	*((uint8_t  *)(data_cmd->buf) + 5) = '\r';
1677	data_cmd->buflen = 6;
1678	upgt_bulk_tx(sc, data_cmd);
1679
1680	/* waiting 'OK' response.  */
1681	usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
1682	error = mtx_sleep(sc, &sc->sc_mtx, 0, "upgtfw", 2 * hz);
1683	if (error != 0) {
1684		device_printf(sc->sc_dev, "firmware load failed\n");
1685		error = EIO;
1686	}
1687
1688	DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware loaded\n", __func__);
1689fail:
1690	UPGT_UNLOCK(sc);
1691	firmware_put(fw, FIRMWARE_UNLOAD);
1692	return (error);
1693}
1694
1695static uint32_t
1696upgt_crc32_le(const void *buf, size_t size)
1697{
1698	uint32_t crc;
1699
1700	crc = ether_crc32_le(buf, size);
1701
1702	/* apply final XOR value as common for CRC-32 */
1703	crc = htole32(crc ^ 0xffffffffU);
1704
1705	return (crc);
1706}
1707
1708/*
1709 * While copying the version 2 firmware, we need to replace two characters:
1710 *
1711 * 0x7e -> 0x7d 0x5e
1712 * 0x7d -> 0x7d 0x5d
1713 */
1714static int
1715upgt_fw_copy(const uint8_t *src, char *dst, int size)
1716{
1717	int i, j;
1718
1719	for (i = 0, j = 0; i < size && j < size; i++) {
1720		switch (src[i]) {
1721		case 0x7e:
1722			dst[j] = 0x7d;
1723			j++;
1724			dst[j] = 0x5e;
1725			j++;
1726			break;
1727		case 0x7d:
1728			dst[j] = 0x7d;
1729			j++;
1730			dst[j] = 0x5d;
1731			j++;
1732			break;
1733		default:
1734			dst[j] = src[i];
1735			j++;
1736			break;
1737		}
1738	}
1739
1740	return (i);
1741}
1742
1743static int
1744upgt_mem_init(struct upgt_softc *sc)
1745{
1746	int i;
1747
1748	for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) {
1749		sc->sc_memory.page[i].used = 0;
1750
1751		if (i == 0) {
1752			/*
1753			 * The first memory page is always reserved for
1754			 * command data.
1755			 */
1756			sc->sc_memory.page[i].addr =
1757			    sc->sc_memaddr_frame_start + MCLBYTES;
1758		} else {
1759			sc->sc_memory.page[i].addr =
1760			    sc->sc_memory.page[i - 1].addr + MCLBYTES;
1761		}
1762
1763		if (sc->sc_memory.page[i].addr + MCLBYTES >=
1764		    sc->sc_memaddr_frame_end)
1765			break;
1766
1767		DPRINTF(sc, UPGT_DEBUG_FW, "memory address page %d=0x%08x\n",
1768		    i, sc->sc_memory.page[i].addr);
1769	}
1770
1771	sc->sc_memory.pages = i;
1772
1773	DPRINTF(sc, UPGT_DEBUG_FW, "memory pages=%d\n", sc->sc_memory.pages);
1774	return (0);
1775}
1776
1777static int
1778upgt_fw_verify(struct upgt_softc *sc)
1779{
1780	const struct firmware *fw;
1781	const struct upgt_fw_bra_option *bra_opt;
1782	const struct upgt_fw_bra_descr *descr;
1783	const uint8_t *p;
1784	const uint32_t *uc;
1785	uint32_t bra_option_type, bra_option_len;
1786	int offset, bra_end = 0, error = 0;
1787
1788	fw = firmware_get(upgt_fwname);
1789	if (fw == NULL) {
1790		device_printf(sc->sc_dev, "could not read microcode %s\n",
1791		    upgt_fwname);
1792		return EIO;
1793	}
1794
1795	/*
1796	 * Seek to beginning of Boot Record Area (BRA).
1797	 */
1798	for (offset = 0; offset < fw->datasize; offset += sizeof(*uc)) {
1799		uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1800		if (*uc == 0)
1801			break;
1802	}
1803	for (; offset < fw->datasize; offset += sizeof(*uc)) {
1804		uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1805		if (*uc != 0)
1806			break;
1807	}
1808	if (offset == fw->datasize) {
1809		device_printf(sc->sc_dev,
1810		    "firmware Boot Record Area not found\n");
1811		error = EIO;
1812		goto fail;
1813	}
1814
1815	DPRINTF(sc, UPGT_DEBUG_FW,
1816	    "firmware Boot Record Area found at offset %d\n", offset);
1817
1818	/*
1819	 * Parse Boot Record Area (BRA) options.
1820	 */
1821	while (offset < fw->datasize && bra_end == 0) {
1822		/* get current BRA option */
1823		p = (const uint8_t *)fw->data + offset;
1824		bra_opt = (const struct upgt_fw_bra_option *)p;
1825		bra_option_type = le32toh(bra_opt->type);
1826		bra_option_len = le32toh(bra_opt->len) * sizeof(*uc);
1827
1828		switch (bra_option_type) {
1829		case UPGT_BRA_TYPE_FW:
1830			DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_FW len=%d\n",
1831			    bra_option_len);
1832
1833			if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) {
1834				device_printf(sc->sc_dev,
1835				    "wrong UPGT_BRA_TYPE_FW len\n");
1836				error = EIO;
1837				goto fail;
1838			}
1839			if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_opt->data,
1840			    bra_option_len) == 0) {
1841				sc->sc_fw_type = UPGT_FWTYPE_LM86;
1842				break;
1843			}
1844			if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_opt->data,
1845			    bra_option_len) == 0) {
1846				sc->sc_fw_type = UPGT_FWTYPE_LM87;
1847				break;
1848			}
1849			device_printf(sc->sc_dev,
1850			    "unsupported firmware type\n");
1851			error = EIO;
1852			goto fail;
1853		case UPGT_BRA_TYPE_VERSION:
1854			DPRINTF(sc, UPGT_DEBUG_FW,
1855			    "UPGT_BRA_TYPE_VERSION len=%d\n", bra_option_len);
1856			break;
1857		case UPGT_BRA_TYPE_DEPIF:
1858			DPRINTF(sc, UPGT_DEBUG_FW,
1859			    "UPGT_BRA_TYPE_DEPIF len=%d\n", bra_option_len);
1860			break;
1861		case UPGT_BRA_TYPE_EXPIF:
1862			DPRINTF(sc, UPGT_DEBUG_FW,
1863			    "UPGT_BRA_TYPE_EXPIF len=%d\n", bra_option_len);
1864			break;
1865		case UPGT_BRA_TYPE_DESCR:
1866			DPRINTF(sc, UPGT_DEBUG_FW,
1867			    "UPGT_BRA_TYPE_DESCR len=%d\n", bra_option_len);
1868
1869			descr = (const struct upgt_fw_bra_descr *)bra_opt->data;
1870
1871			sc->sc_memaddr_frame_start =
1872			    le32toh(descr->memaddr_space_start);
1873			sc->sc_memaddr_frame_end =
1874			    le32toh(descr->memaddr_space_end);
1875
1876			DPRINTF(sc, UPGT_DEBUG_FW,
1877			    "memory address space start=0x%08x\n",
1878			    sc->sc_memaddr_frame_start);
1879			DPRINTF(sc, UPGT_DEBUG_FW,
1880			    "memory address space end=0x%08x\n",
1881			    sc->sc_memaddr_frame_end);
1882			break;
1883		case UPGT_BRA_TYPE_END:
1884			DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_END len=%d\n",
1885			    bra_option_len);
1886			bra_end = 1;
1887			break;
1888		default:
1889			DPRINTF(sc, UPGT_DEBUG_FW, "unknown BRA option len=%d\n",
1890			    bra_option_len);
1891			error = EIO;
1892			goto fail;
1893		}
1894
1895		/* jump to next BRA option */
1896		offset += sizeof(struct upgt_fw_bra_option) + bra_option_len;
1897	}
1898
1899	DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware verified", __func__);
1900fail:
1901	firmware_put(fw, FIRMWARE_UNLOAD);
1902	return (error);
1903}
1904
1905static void
1906upgt_bulk_tx(struct upgt_softc *sc, struct upgt_data *data)
1907{
1908
1909	UPGT_ASSERT_LOCKED(sc);
1910
1911	STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1912	UPGT_STAT_INC(sc, st_tx_pending);
1913	usbd_transfer_start(sc->sc_xfer[UPGT_BULK_TX]);
1914}
1915
1916static int
1917upgt_device_reset(struct upgt_softc *sc)
1918{
1919	struct upgt_data *data;
1920	char init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e };
1921
1922	UPGT_LOCK(sc);
1923
1924	data = upgt_getbuf(sc);
1925	if (data == NULL) {
1926		UPGT_UNLOCK(sc);
1927		return (ENOBUFS);
1928	}
1929	memcpy(data->buf, init_cmd, sizeof(init_cmd));
1930	data->buflen = sizeof(init_cmd);
1931	upgt_bulk_tx(sc, data);
1932	usb_pause_mtx(&sc->sc_mtx, 100);
1933
1934	UPGT_UNLOCK(sc);
1935	DPRINTF(sc, UPGT_DEBUG_FW, "%s: device initialized\n", __func__);
1936	return (0);
1937}
1938
1939static int
1940upgt_alloc_tx(struct upgt_softc *sc)
1941{
1942	int i;
1943
1944	STAILQ_INIT(&sc->sc_tx_active);
1945	STAILQ_INIT(&sc->sc_tx_inactive);
1946	STAILQ_INIT(&sc->sc_tx_pending);
1947
1948	for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1949		struct upgt_data *data = &sc->sc_tx_data[i];
1950
1951		data->buf = malloc(MCLBYTES, M_USBDEV, M_NOWAIT | M_ZERO);
1952		if (data->buf == NULL) {
1953			device_printf(sc->sc_dev,
1954			    "could not allocate TX buffer\n");
1955			return (ENOMEM);
1956		}
1957		STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
1958		UPGT_STAT_INC(sc, st_tx_inactive);
1959	}
1960
1961	return (0);
1962}
1963
1964static int
1965upgt_alloc_rx(struct upgt_softc *sc)
1966{
1967	int i;
1968
1969	STAILQ_INIT(&sc->sc_rx_active);
1970	STAILQ_INIT(&sc->sc_rx_inactive);
1971
1972	for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1973		struct upgt_data *data = &sc->sc_rx_data[i];
1974
1975		data->buf = malloc(MCLBYTES, M_USBDEV, M_NOWAIT | M_ZERO);
1976		if (data->buf == NULL) {
1977			device_printf(sc->sc_dev,
1978			    "could not allocate RX buffer\n");
1979			return (ENOMEM);
1980		}
1981		STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
1982	}
1983
1984	return (0);
1985}
1986
1987static int
1988upgt_detach(device_t dev)
1989{
1990	struct upgt_softc *sc = device_get_softc(dev);
1991	struct ifnet *ifp = sc->sc_ifp;
1992	struct ieee80211com *ic = ifp->if_l2com;
1993
1994	if (!device_is_attached(dev))
1995		return 0;
1996
1997	upgt_stop(sc);
1998
1999	callout_drain(&sc->sc_led_ch);
2000	callout_drain(&sc->sc_watchdog_ch);
2001
2002	usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
2003	ieee80211_ifdetach(ic);
2004	upgt_free_rx(sc);
2005	upgt_free_tx(sc);
2006
2007	if_free(ifp);
2008	mtx_destroy(&sc->sc_mtx);
2009
2010	return (0);
2011}
2012
2013static void
2014upgt_free_rx(struct upgt_softc *sc)
2015{
2016	int i;
2017
2018	for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
2019		struct upgt_data *data = &sc->sc_rx_data[i];
2020
2021		free(data->buf, M_USBDEV);
2022		data->ni = NULL;
2023	}
2024}
2025
2026static void
2027upgt_free_tx(struct upgt_softc *sc)
2028{
2029	int i;
2030
2031	for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
2032		struct upgt_data *data = &sc->sc_tx_data[i];
2033
2034		free(data->buf, M_USBDEV);
2035		data->ni = NULL;
2036	}
2037}
2038
2039static void
2040upgt_abort_xfers_locked(struct upgt_softc *sc)
2041{
2042	int i;
2043
2044	UPGT_ASSERT_LOCKED(sc);
2045	/* abort any pending transfers */
2046	for (i = 0; i < UPGT_N_XFERS; i++)
2047		usbd_transfer_stop(sc->sc_xfer[i]);
2048}
2049
2050static void
2051upgt_abort_xfers(struct upgt_softc *sc)
2052{
2053
2054	UPGT_LOCK(sc);
2055	upgt_abort_xfers_locked(sc);
2056	UPGT_UNLOCK(sc);
2057}
2058
2059#define	UPGT_SYSCTL_STAT_ADD32(c, h, n, p, d)	\
2060	    SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2061
2062static void
2063upgt_sysctl_node(struct upgt_softc *sc)
2064{
2065	struct sysctl_ctx_list *ctx;
2066	struct sysctl_oid_list *child;
2067	struct sysctl_oid *tree;
2068	struct upgt_stat *stats;
2069
2070	stats = &sc->sc_stat;
2071	ctx = device_get_sysctl_ctx(sc->sc_dev);
2072	child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev));
2073
2074	tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
2075	    NULL, "UPGT statistics");
2076	child = SYSCTL_CHILDREN(tree);
2077	UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_active",
2078	    &stats->st_tx_active, "Active numbers in TX queue");
2079	UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_inactive",
2080	    &stats->st_tx_inactive, "Inactive numbers in TX queue");
2081	UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_pending",
2082	    &stats->st_tx_pending, "Pending numbers in TX queue");
2083}
2084
2085#undef UPGT_SYSCTL_STAT_ADD32
2086
2087static struct upgt_data *
2088_upgt_getbuf(struct upgt_softc *sc)
2089{
2090	struct upgt_data *bf;
2091
2092	bf = STAILQ_FIRST(&sc->sc_tx_inactive);
2093	if (bf != NULL) {
2094		STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next);
2095		UPGT_STAT_DEC(sc, st_tx_inactive);
2096	} else
2097		bf = NULL;
2098	if (bf == NULL)
2099		DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: %s\n", __func__,
2100		    "out of xmit buffers");
2101	return (bf);
2102}
2103
2104static struct upgt_data *
2105upgt_getbuf(struct upgt_softc *sc)
2106{
2107	struct upgt_data *bf;
2108
2109	UPGT_ASSERT_LOCKED(sc);
2110
2111	bf = _upgt_getbuf(sc);
2112	if (bf == NULL) {
2113		struct ifnet *ifp = sc->sc_ifp;
2114
2115		DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: stop queue\n", __func__);
2116		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2117	}
2118
2119	return (bf);
2120}
2121
2122static struct upgt_data *
2123upgt_gettxbuf(struct upgt_softc *sc)
2124{
2125	struct upgt_data *bf;
2126
2127	UPGT_ASSERT_LOCKED(sc);
2128
2129	bf = upgt_getbuf(sc);
2130	if (bf == NULL)
2131		return (NULL);
2132
2133	bf->addr = upgt_mem_alloc(sc);
2134	if (bf->addr == 0) {
2135		struct ifnet *ifp = sc->sc_ifp;
2136
2137		DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: no free prism memory!\n",
2138		    __func__);
2139		STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
2140		UPGT_STAT_INC(sc, st_tx_inactive);
2141		if (!(ifp->if_drv_flags & IFF_DRV_OACTIVE))
2142			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2143		return (NULL);
2144	}
2145	return (bf);
2146}
2147
2148static int
2149upgt_tx_start(struct upgt_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2150    struct upgt_data *data)
2151{
2152	struct ieee80211vap *vap = ni->ni_vap;
2153	int error = 0, len;
2154	struct ieee80211_frame *wh;
2155	struct ieee80211_key *k;
2156	struct ifnet *ifp = sc->sc_ifp;
2157	struct upgt_lmac_mem *mem;
2158	struct upgt_lmac_tx_desc *txdesc;
2159
2160	UPGT_ASSERT_LOCKED(sc);
2161
2162	upgt_set_led(sc, UPGT_LED_BLINK);
2163
2164	/*
2165	 * Software crypto.
2166	 */
2167	wh = mtod(m, struct ieee80211_frame *);
2168	if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
2169		k = ieee80211_crypto_encap(ni, m);
2170		if (k == NULL) {
2171			device_printf(sc->sc_dev,
2172			    "ieee80211_crypto_encap returns NULL.\n");
2173			error = EIO;
2174			goto done;
2175		}
2176
2177		/* in case packet header moved, reset pointer */
2178		wh = mtod(m, struct ieee80211_frame *);
2179	}
2180
2181	/* Transmit the URB containing the TX data.  */
2182	memset(data->buf, 0, MCLBYTES);
2183	mem = (struct upgt_lmac_mem *)data->buf;
2184	mem->addr = htole32(data->addr);
2185	txdesc = (struct upgt_lmac_tx_desc *)(mem + 1);
2186
2187	if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
2188	    IEEE80211_FC0_TYPE_MGT) {
2189		/* mgmt frames  */
2190		txdesc->header1.flags = UPGT_H1_FLAGS_TX_MGMT;
2191		/* always send mgmt frames at lowest rate (DS1) */
2192		memset(txdesc->rates, 0x10, sizeof(txdesc->rates));
2193	} else {
2194		/* data frames  */
2195		txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA;
2196		memcpy(txdesc->rates, sc->sc_cur_rateset, sizeof(txdesc->rates));
2197	}
2198	txdesc->header1.type = UPGT_H1_TYPE_TX_DATA;
2199	txdesc->header1.len = htole16(m->m_pkthdr.len);
2200	txdesc->header2.reqid = htole32(data->addr);
2201	txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES);
2202	txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES);
2203	txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA);
2204	txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE;
2205
2206	if (ieee80211_radiotap_active_vap(vap)) {
2207		struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
2208
2209		tap->wt_flags = 0;
2210		tap->wt_rate = 0;	/* XXX where to get from? */
2211
2212		ieee80211_radiotap_tx(vap, m);
2213	}
2214
2215	/* copy frame below our TX descriptor header */
2216	m_copydata(m, 0, m->m_pkthdr.len,
2217	    data->buf + (sizeof(*mem) + sizeof(*txdesc)));
2218	/* calculate frame size */
2219	len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len;
2220	/* we need to align the frame to a 4 byte boundary */
2221	len = (len + 3) & ~3;
2222	/* calculate frame checksum */
2223	mem->chksum = upgt_chksum_le((uint32_t *)txdesc, len - sizeof(*mem));
2224	data->ni = ni;
2225	data->m = m;
2226	data->buflen = len;
2227
2228	DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: TX start data sending (%d bytes)\n",
2229	    __func__, len);
2230	KASSERT(len <= MCLBYTES, ("mbuf is small for saving data"));
2231
2232	upgt_bulk_tx(sc, data);
2233done:
2234	/*
2235	 * If we don't regulary read the device statistics, the RX queue
2236	 * will stall.  It's strange, but it works, so we keep reading
2237	 * the statistics here.  *shrug*
2238	 */
2239	if (!(ifp->if_opackets % UPGT_TX_STAT_INTERVAL))
2240		upgt_get_stats(sc);
2241
2242	return (error);
2243}
2244
2245static void
2246upgt_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2247{
2248	struct upgt_softc *sc = usbd_xfer_softc(xfer);
2249	struct ifnet *ifp = sc->sc_ifp;
2250	struct ieee80211com *ic = ifp->if_l2com;
2251	struct ieee80211_frame *wh;
2252	struct ieee80211_node *ni;
2253	struct mbuf *m = NULL;
2254	struct upgt_data *data;
2255	int8_t nf;
2256	int rssi = -1;
2257
2258	UPGT_ASSERT_LOCKED(sc);
2259
2260	switch (USB_GET_STATE(xfer)) {
2261	case USB_ST_TRANSFERRED:
2262		data = STAILQ_FIRST(&sc->sc_rx_active);
2263		if (data == NULL)
2264			goto setup;
2265		STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2266		m = upgt_rxeof(xfer, data, &rssi);
2267		STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2268		/* FALLTHROUGH */
2269	case USB_ST_SETUP:
2270setup:
2271		data = STAILQ_FIRST(&sc->sc_rx_inactive);
2272		if (data == NULL)
2273			return;
2274		STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
2275		STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
2276		usbd_xfer_set_frame_data(xfer, 0, data->buf,
2277		    usbd_xfer_max_len(xfer));
2278		usbd_transfer_submit(xfer);
2279
2280		/*
2281		 * To avoid LOR we should unlock our private mutex here to call
2282		 * ieee80211_input() because here is at the end of a USB
2283		 * callback and safe to unlock.
2284		 */
2285		UPGT_UNLOCK(sc);
2286		if (m != NULL) {
2287			wh = mtod(m, struct ieee80211_frame *);
2288			ni = ieee80211_find_rxnode(ic,
2289			    (struct ieee80211_frame_min *)wh);
2290			nf = -95;	/* XXX */
2291			if (ni != NULL) {
2292				(void) ieee80211_input(ni, m, rssi, nf);
2293				/* node is no longer needed */
2294				ieee80211_free_node(ni);
2295			} else
2296				(void) ieee80211_input_all(ic, m, rssi, nf);
2297			m = NULL;
2298		}
2299		if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
2300		    !IFQ_IS_EMPTY(&ifp->if_snd))
2301			upgt_start(ifp);
2302		UPGT_LOCK(sc);
2303		break;
2304	default:
2305		/* needs it to the inactive queue due to a error.  */
2306		data = STAILQ_FIRST(&sc->sc_rx_active);
2307		if (data != NULL) {
2308			STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2309			STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2310		}
2311		if (error != USB_ERR_CANCELLED) {
2312			usbd_xfer_set_stall(xfer);
2313			ifp->if_ierrors++;
2314			goto setup;
2315		}
2316		break;
2317	}
2318}
2319
2320static void
2321upgt_bulk_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2322{
2323	struct upgt_softc *sc = usbd_xfer_softc(xfer);
2324	struct ifnet *ifp = sc->sc_ifp;
2325	struct upgt_data *data;
2326
2327	UPGT_ASSERT_LOCKED(sc);
2328	switch (USB_GET_STATE(xfer)) {
2329	case USB_ST_TRANSFERRED:
2330		data = STAILQ_FIRST(&sc->sc_tx_active);
2331		if (data == NULL)
2332			goto setup;
2333		STAILQ_REMOVE_HEAD(&sc->sc_tx_active, next);
2334		UPGT_STAT_DEC(sc, st_tx_active);
2335		upgt_txeof(xfer, data);
2336		STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
2337		UPGT_STAT_INC(sc, st_tx_inactive);
2338		/* FALLTHROUGH */
2339	case USB_ST_SETUP:
2340setup:
2341		data = STAILQ_FIRST(&sc->sc_tx_pending);
2342		if (data == NULL) {
2343			DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: empty pending queue\n",
2344			    __func__);
2345			return;
2346		}
2347		STAILQ_REMOVE_HEAD(&sc->sc_tx_pending, next);
2348		UPGT_STAT_DEC(sc, st_tx_pending);
2349		STAILQ_INSERT_TAIL(&sc->sc_tx_active, data, next);
2350		UPGT_STAT_INC(sc, st_tx_active);
2351
2352		usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen);
2353		usbd_transfer_submit(xfer);
2354		UPGT_UNLOCK(sc);
2355		upgt_start(ifp);
2356		UPGT_LOCK(sc);
2357		break;
2358	default:
2359		data = STAILQ_FIRST(&sc->sc_tx_active);
2360		if (data == NULL)
2361			goto setup;
2362		if (data->ni != NULL) {
2363			ieee80211_free_node(data->ni);
2364			data->ni = NULL;
2365			ifp->if_oerrors++;
2366		}
2367		if (error != USB_ERR_CANCELLED) {
2368			usbd_xfer_set_stall(xfer);
2369			goto setup;
2370		}
2371		break;
2372	}
2373}
2374
2375static device_method_t upgt_methods[] = {
2376        /* Device interface */
2377        DEVMETHOD(device_probe, upgt_match),
2378        DEVMETHOD(device_attach, upgt_attach),
2379        DEVMETHOD(device_detach, upgt_detach),
2380
2381	{ 0, 0 }
2382};
2383
2384static driver_t upgt_driver = {
2385        "upgt",
2386        upgt_methods,
2387        sizeof(struct upgt_softc)
2388};
2389
2390static devclass_t upgt_devclass;
2391
2392DRIVER_MODULE(if_upgt, uhub, upgt_driver, upgt_devclass, NULL, 0);
2393MODULE_VERSION(if_upgt, 1);
2394MODULE_DEPEND(if_upgt, usb, 1, 1, 1);
2395MODULE_DEPEND(if_upgt, wlan, 1, 1, 1);
2396MODULE_DEPEND(if_upgt, upgtfw_fw, 1, 1, 1);
2397