if_zyd.c revision 196219
1/*	$OpenBSD: if_zyd.c,v 1.52 2007/02/11 00:08:04 jsg Exp $	*/
2/*	$NetBSD: if_zyd.c,v 1.7 2007/06/21 04:04:29 kiyohara Exp $	*/
3/*	$FreeBSD: head/sys/dev/usb/wlan/if_zyd.c 196219 2009-08-14 20:03:53Z jhb $	*/
4
5/*-
6 * Copyright (c) 2006 by Damien Bergamini <damien.bergamini@free.fr>
7 * Copyright (c) 2006 by Florian Stoehr <ich@florian-stoehr.de>
8 *
9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 */
21
22#include <sys/cdefs.h>
23__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_zyd.c 196219 2009-08-14 20:03:53Z jhb $");
24
25/*
26 * ZyDAS ZD1211/ZD1211B USB WLAN driver.
27 */
28
29#include <sys/param.h>
30#include <sys/sockio.h>
31#include <sys/sysctl.h>
32#include <sys/lock.h>
33#include <sys/mutex.h>
34#include <sys/condvar.h>
35#include <sys/mbuf.h>
36#include <sys/kernel.h>
37#include <sys/socket.h>
38#include <sys/systm.h>
39#include <sys/malloc.h>
40#include <sys/module.h>
41#include <sys/bus.h>
42#include <sys/endian.h>
43#include <sys/kdb.h>
44
45#include <machine/bus.h>
46#include <machine/resource.h>
47#include <sys/rman.h>
48
49#include <net/bpf.h>
50#include <net/if.h>
51#include <net/if_arp.h>
52#include <net/ethernet.h>
53#include <net/if_dl.h>
54#include <net/if_media.h>
55#include <net/if_types.h>
56
57#ifdef INET
58#include <netinet/in.h>
59#include <netinet/in_systm.h>
60#include <netinet/in_var.h>
61#include <netinet/if_ether.h>
62#include <netinet/ip.h>
63#endif
64
65#include <net80211/ieee80211_var.h>
66#include <net80211/ieee80211_regdomain.h>
67#include <net80211/ieee80211_radiotap.h>
68#include <net80211/ieee80211_amrr.h>
69
70#include <dev/usb/usb.h>
71#include <dev/usb/usbdi.h>
72#include <dev/usb/usbdi_util.h>
73#include "usbdevs.h"
74
75#include <dev/usb/wlan/if_zydreg.h>
76#include <dev/usb/wlan/if_zydfw.h>
77
78#if USB_DEBUG
79static int zyd_debug = 0;
80
81SYSCTL_NODE(_hw_usb, OID_AUTO, zyd, CTLFLAG_RW, 0, "USB zyd");
82SYSCTL_INT(_hw_usb_zyd, OID_AUTO, debug, CTLFLAG_RW, &zyd_debug, 0,
83    "zyd debug level");
84
85enum {
86	ZYD_DEBUG_XMIT		= 0x00000001,	/* basic xmit operation */
87	ZYD_DEBUG_RECV		= 0x00000002,	/* basic recv operation */
88	ZYD_DEBUG_RESET		= 0x00000004,	/* reset processing */
89	ZYD_DEBUG_INIT		= 0x00000008,	/* device init */
90	ZYD_DEBUG_TX_PROC	= 0x00000010,	/* tx ISR proc */
91	ZYD_DEBUG_RX_PROC	= 0x00000020,	/* rx ISR proc */
92	ZYD_DEBUG_STATE		= 0x00000040,	/* 802.11 state transitions */
93	ZYD_DEBUG_STAT		= 0x00000080,	/* statistic */
94	ZYD_DEBUG_FW		= 0x00000100,	/* firmware */
95	ZYD_DEBUG_CMD		= 0x00000200,	/* fw commands */
96	ZYD_DEBUG_ANY		= 0xffffffff
97};
98#define	DPRINTF(sc, m, fmt, ...) do {				\
99	if (zyd_debug & (m))					\
100		printf("%s: " fmt, __func__, ## __VA_ARGS__);	\
101} while (0)
102#else
103#define	DPRINTF(sc, m, fmt, ...) do {				\
104	(void) sc;						\
105} while (0)
106#endif
107
108#define	zyd_do_request(sc,req,data) \
109    usbd_do_request_flags((sc)->sc_udev, &(sc)->sc_mtx, req, data, 0, NULL, 5000)
110
111static device_probe_t zyd_match;
112static device_attach_t zyd_attach;
113static device_detach_t zyd_detach;
114
115static usb_callback_t zyd_intr_read_callback;
116static usb_callback_t zyd_intr_write_callback;
117static usb_callback_t zyd_bulk_read_callback;
118static usb_callback_t zyd_bulk_write_callback;
119
120static struct ieee80211vap *zyd_vap_create(struct ieee80211com *,
121		    const char name[IFNAMSIZ], int unit, int opmode,
122		    int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
123		    const uint8_t mac[IEEE80211_ADDR_LEN]);
124static void	zyd_vap_delete(struct ieee80211vap *);
125static void	zyd_tx_free(struct zyd_tx_data *, int);
126static void	zyd_setup_tx_list(struct zyd_softc *);
127static void	zyd_unsetup_tx_list(struct zyd_softc *);
128static struct ieee80211_node *zyd_node_alloc(struct ieee80211vap *,
129			    const uint8_t mac[IEEE80211_ADDR_LEN]);
130static int	zyd_newstate(struct ieee80211vap *, enum ieee80211_state, int);
131static int	zyd_cmd(struct zyd_softc *, uint16_t, const void *, int,
132		    void *, int, int);
133static int	zyd_read16(struct zyd_softc *, uint16_t, uint16_t *);
134static int	zyd_read32(struct zyd_softc *, uint16_t, uint32_t *);
135static int	zyd_write16(struct zyd_softc *, uint16_t, uint16_t);
136static int	zyd_write32(struct zyd_softc *, uint16_t, uint32_t);
137static int	zyd_rfwrite(struct zyd_softc *, uint32_t);
138static int	zyd_lock_phy(struct zyd_softc *);
139static int	zyd_unlock_phy(struct zyd_softc *);
140static int	zyd_rf_attach(struct zyd_softc *, uint8_t);
141static const char *zyd_rf_name(uint8_t);
142static int	zyd_hw_init(struct zyd_softc *);
143static int	zyd_read_pod(struct zyd_softc *);
144static int	zyd_read_eeprom(struct zyd_softc *);
145static int	zyd_get_macaddr(struct zyd_softc *);
146static int	zyd_set_macaddr(struct zyd_softc *, const uint8_t *);
147static int	zyd_set_bssid(struct zyd_softc *, const uint8_t *);
148static int	zyd_switch_radio(struct zyd_softc *, int);
149static int	zyd_set_led(struct zyd_softc *, int, int);
150static void	zyd_set_multi(struct zyd_softc *);
151static void	zyd_update_mcast(struct ifnet *);
152static int	zyd_set_rxfilter(struct zyd_softc *);
153static void	zyd_set_chan(struct zyd_softc *, struct ieee80211_channel *);
154static int	zyd_set_beacon_interval(struct zyd_softc *, int);
155static void	zyd_rx_data(struct usb_xfer *, int, uint16_t);
156static int	zyd_tx_start(struct zyd_softc *, struct mbuf *,
157		    struct ieee80211_node *);
158static void	zyd_start(struct ifnet *);
159static int	zyd_raw_xmit(struct ieee80211_node *, struct mbuf *,
160		    const struct ieee80211_bpf_params *);
161static int	zyd_ioctl(struct ifnet *, u_long, caddr_t);
162static void	zyd_init_locked(struct zyd_softc *);
163static void	zyd_init(void *);
164static void	zyd_stop(struct zyd_softc *);
165static int	zyd_loadfirmware(struct zyd_softc *);
166static void	zyd_newassoc(struct ieee80211_node *, int);
167static void	zyd_scan_start(struct ieee80211com *);
168static void	zyd_scan_end(struct ieee80211com *);
169static void	zyd_set_channel(struct ieee80211com *);
170static int	zyd_rfmd_init(struct zyd_rf *);
171static int	zyd_rfmd_switch_radio(struct zyd_rf *, int);
172static int	zyd_rfmd_set_channel(struct zyd_rf *, uint8_t);
173static int	zyd_al2230_init(struct zyd_rf *);
174static int	zyd_al2230_switch_radio(struct zyd_rf *, int);
175static int	zyd_al2230_set_channel(struct zyd_rf *, uint8_t);
176static int	zyd_al2230_set_channel_b(struct zyd_rf *, uint8_t);
177static int	zyd_al2230_init_b(struct zyd_rf *);
178static int	zyd_al7230B_init(struct zyd_rf *);
179static int	zyd_al7230B_switch_radio(struct zyd_rf *, int);
180static int	zyd_al7230B_set_channel(struct zyd_rf *, uint8_t);
181static int	zyd_al2210_init(struct zyd_rf *);
182static int	zyd_al2210_switch_radio(struct zyd_rf *, int);
183static int	zyd_al2210_set_channel(struct zyd_rf *, uint8_t);
184static int	zyd_gct_init(struct zyd_rf *);
185static int	zyd_gct_switch_radio(struct zyd_rf *, int);
186static int	zyd_gct_set_channel(struct zyd_rf *, uint8_t);
187static int	zyd_gct_mode(struct zyd_rf *);
188static int	zyd_gct_set_channel_synth(struct zyd_rf *, int, int);
189static int	zyd_gct_write(struct zyd_rf *, uint16_t);
190static int	zyd_gct_txgain(struct zyd_rf *, uint8_t);
191static int	zyd_maxim2_init(struct zyd_rf *);
192static int	zyd_maxim2_switch_radio(struct zyd_rf *, int);
193static int	zyd_maxim2_set_channel(struct zyd_rf *, uint8_t);
194
195static const struct zyd_phy_pair zyd_def_phy[] = ZYD_DEF_PHY;
196static const struct zyd_phy_pair zyd_def_phyB[] = ZYD_DEF_PHYB;
197
198/* various supported device vendors/products */
199#define ZYD_ZD1211	0
200#define ZYD_ZD1211B	1
201
202#define	ZYD_ZD1211_DEV(v,p)	\
203	{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, ZYD_ZD1211) }
204#define	ZYD_ZD1211B_DEV(v,p)	\
205	{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, ZYD_ZD1211B) }
206static const struct usb_device_id zyd_devs[] = {
207	/* ZYD_ZD1211 */
208	ZYD_ZD1211_DEV(3COM2, 3CRUSB10075),
209	ZYD_ZD1211_DEV(ABOCOM, WL54),
210	ZYD_ZD1211_DEV(ASUS, WL159G),
211	ZYD_ZD1211_DEV(CYBERTAN, TG54USB),
212	ZYD_ZD1211_DEV(DRAYTEK, VIGOR550),
213	ZYD_ZD1211_DEV(PLANEX2, GWUS54GD),
214	ZYD_ZD1211_DEV(PLANEX2, GWUS54GZL),
215	ZYD_ZD1211_DEV(PLANEX3, GWUS54GZ),
216	ZYD_ZD1211_DEV(PLANEX3, GWUS54MINI),
217	ZYD_ZD1211_DEV(SAGEM, XG760A),
218	ZYD_ZD1211_DEV(SENAO, NUB8301),
219	ZYD_ZD1211_DEV(SITECOMEU, WL113),
220	ZYD_ZD1211_DEV(SWEEX, ZD1211),
221	ZYD_ZD1211_DEV(TEKRAM, QUICKWLAN),
222	ZYD_ZD1211_DEV(TEKRAM, ZD1211_1),
223	ZYD_ZD1211_DEV(TEKRAM, ZD1211_2),
224	ZYD_ZD1211_DEV(TWINMOS, G240),
225	ZYD_ZD1211_DEV(UMEDIA, ALL0298V2),
226	ZYD_ZD1211_DEV(UMEDIA, TEW429UB_A),
227	ZYD_ZD1211_DEV(UMEDIA, TEW429UB),
228	ZYD_ZD1211_DEV(WISTRONNEWEB, UR055G),
229	ZYD_ZD1211_DEV(ZCOM, ZD1211),
230	ZYD_ZD1211_DEV(ZYDAS, ZD1211),
231	ZYD_ZD1211_DEV(ZYXEL, AG225H),
232	ZYD_ZD1211_DEV(ZYXEL, ZYAIRG220),
233	ZYD_ZD1211_DEV(ZYXEL, G200V2),
234	/* ZYD_ZD1211B */
235	ZYD_ZD1211B_DEV(ACCTON, SMCWUSBG),
236	ZYD_ZD1211B_DEV(ACCTON, ZD1211B),
237	ZYD_ZD1211B_DEV(ASUS, A9T_WIFI),
238	ZYD_ZD1211B_DEV(BELKIN, F5D7050_V4000),
239	ZYD_ZD1211B_DEV(BELKIN, ZD1211B),
240	ZYD_ZD1211B_DEV(CISCOLINKSYS, WUSBF54G),
241	ZYD_ZD1211B_DEV(FIBERLINE, WL430U),
242	ZYD_ZD1211B_DEV(MELCO, KG54L),
243	ZYD_ZD1211B_DEV(PHILIPS, SNU5600),
244	ZYD_ZD1211B_DEV(PLANEX2, GW_US54GXS),
245	ZYD_ZD1211B_DEV(SAGEM, XG76NA),
246	ZYD_ZD1211B_DEV(SITECOMEU, ZD1211B),
247	ZYD_ZD1211B_DEV(UMEDIA, TEW429UBC1),
248	ZYD_ZD1211B_DEV(USR, USR5423),
249	ZYD_ZD1211B_DEV(VTECH, ZD1211B),
250	ZYD_ZD1211B_DEV(ZCOM, ZD1211B),
251	ZYD_ZD1211B_DEV(ZYDAS, ZD1211B),
252	ZYD_ZD1211B_DEV(ZYXEL, M202),
253	ZYD_ZD1211B_DEV(ZYXEL, G202),
254	ZYD_ZD1211B_DEV(ZYXEL, G220V2)
255};
256
257static const struct usb_config zyd_config[ZYD_N_TRANSFER] = {
258	[ZYD_BULK_WR] = {
259		.type = UE_BULK,
260		.endpoint = UE_ADDR_ANY,
261		.direction = UE_DIR_OUT,
262		.bufsize = ZYD_MAX_TXBUFSZ,
263		.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
264		.callback = zyd_bulk_write_callback,
265		.ep_index = 0,
266		.timeout = 10000,	/* 10 seconds */
267	},
268	[ZYD_BULK_RD] = {
269		.type = UE_BULK,
270		.endpoint = UE_ADDR_ANY,
271		.direction = UE_DIR_IN,
272		.bufsize = ZYX_MAX_RXBUFSZ,
273		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
274		.callback = zyd_bulk_read_callback,
275		.ep_index = 0,
276	},
277	[ZYD_INTR_WR] = {
278		.type = UE_BULK_INTR,
279		.endpoint = UE_ADDR_ANY,
280		.direction = UE_DIR_OUT,
281		.bufsize = sizeof(struct zyd_cmd),
282		.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
283		.callback = zyd_intr_write_callback,
284		.timeout = 1000,	/* 1 second */
285		.ep_index = 1,
286	},
287	[ZYD_INTR_RD] = {
288		.type = UE_INTERRUPT,
289		.endpoint = UE_ADDR_ANY,
290		.direction = UE_DIR_IN,
291		.bufsize = sizeof(struct zyd_cmd),
292		.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
293		.callback = zyd_intr_read_callback,
294	},
295};
296#define zyd_read16_m(sc, val, data)	do {				\
297	error = zyd_read16(sc, val, data);				\
298	if (error != 0)							\
299		goto fail;						\
300} while (0)
301#define zyd_write16_m(sc, val, data)	do {				\
302	error = zyd_write16(sc, val, data);				\
303	if (error != 0)							\
304		goto fail;						\
305} while (0)
306#define zyd_read32_m(sc, val, data)	do {				\
307	error = zyd_read32(sc, val, data);				\
308	if (error != 0)							\
309		goto fail;						\
310} while (0)
311#define zyd_write32_m(sc, val, data)	do {				\
312	error = zyd_write32(sc, val, data);				\
313	if (error != 0)							\
314		goto fail;						\
315} while (0)
316
317static int
318zyd_match(device_t dev)
319{
320	struct usb_attach_arg *uaa = device_get_ivars(dev);
321
322	if (uaa->usb_mode != USB_MODE_HOST)
323		return (ENXIO);
324	if (uaa->info.bConfigIndex != ZYD_CONFIG_INDEX)
325		return (ENXIO);
326	if (uaa->info.bIfaceIndex != ZYD_IFACE_INDEX)
327		return (ENXIO);
328
329	return (usbd_lookup_id_by_uaa(zyd_devs, sizeof(zyd_devs), uaa));
330}
331
332static int
333zyd_attach(device_t dev)
334{
335	struct usb_attach_arg *uaa = device_get_ivars(dev);
336	struct zyd_softc *sc = device_get_softc(dev);
337	struct ifnet *ifp;
338	struct ieee80211com *ic;
339	uint8_t iface_index, bands;
340	int error;
341
342	if (uaa->info.bcdDevice < 0x4330) {
343		device_printf(dev, "device version mismatch: 0x%X "
344		    "(only >= 43.30 supported)\n",
345		    uaa->info.bcdDevice);
346		return (EINVAL);
347	}
348
349	device_set_usb_desc(dev);
350	sc->sc_dev = dev;
351	sc->sc_udev = uaa->device;
352	sc->sc_macrev = USB_GET_DRIVER_INFO(uaa);
353
354	mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev),
355	    MTX_NETWORK_LOCK, MTX_DEF);
356	STAILQ_INIT(&sc->sc_rqh);
357
358	iface_index = ZYD_IFACE_INDEX;
359	error = usbd_transfer_setup(uaa->device,
360	    &iface_index, sc->sc_xfer, zyd_config,
361	    ZYD_N_TRANSFER, sc, &sc->sc_mtx);
362	if (error) {
363		device_printf(dev, "could not allocate USB transfers, "
364		    "err=%s\n", usbd_errstr(error));
365		goto detach;
366	}
367
368	ZYD_LOCK(sc);
369	if ((error = zyd_get_macaddr(sc)) != 0) {
370		device_printf(sc->sc_dev, "could not read EEPROM\n");
371		ZYD_UNLOCK(sc);
372		goto detach;
373	}
374	ZYD_UNLOCK(sc);
375
376	ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
377	if (ifp == NULL) {
378		device_printf(sc->sc_dev, "can not if_alloc()\n");
379		goto detach;
380	}
381	ifp->if_softc = sc;
382	if_initname(ifp, "zyd", device_get_unit(sc->sc_dev));
383	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
384	ifp->if_init = zyd_init;
385	ifp->if_ioctl = zyd_ioctl;
386	ifp->if_start = zyd_start;
387	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
388	IFQ_SET_READY(&ifp->if_snd);
389
390	ic = ifp->if_l2com;
391	ic->ic_ifp = ifp;
392	ic->ic_phytype = IEEE80211_T_OFDM;	/* not only, but not used */
393	ic->ic_opmode = IEEE80211_M_STA;
394
395	/* set device capabilities */
396	ic->ic_caps =
397		  IEEE80211_C_STA		/* station mode */
398		| IEEE80211_C_MONITOR		/* monitor mode */
399		| IEEE80211_C_SHPREAMBLE	/* short preamble supported */
400	        | IEEE80211_C_SHSLOT		/* short slot time supported */
401		| IEEE80211_C_BGSCAN		/* capable of bg scanning */
402	        | IEEE80211_C_WPA		/* 802.11i */
403		;
404
405	bands = 0;
406	setbit(&bands, IEEE80211_MODE_11B);
407	setbit(&bands, IEEE80211_MODE_11G);
408	ieee80211_init_channels(ic, NULL, &bands);
409
410	ieee80211_ifattach(ic, sc->sc_bssid);
411	ic->ic_newassoc = zyd_newassoc;
412	ic->ic_raw_xmit = zyd_raw_xmit;
413	ic->ic_node_alloc = zyd_node_alloc;
414	ic->ic_scan_start = zyd_scan_start;
415	ic->ic_scan_end = zyd_scan_end;
416	ic->ic_set_channel = zyd_set_channel;
417
418	ic->ic_vap_create = zyd_vap_create;
419	ic->ic_vap_delete = zyd_vap_delete;
420	ic->ic_update_mcast = zyd_update_mcast;
421	ic->ic_update_promisc = zyd_update_mcast;
422
423	ieee80211_radiotap_attach(ic,
424	    &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
425		ZYD_TX_RADIOTAP_PRESENT,
426	    &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
427		ZYD_RX_RADIOTAP_PRESENT);
428
429	if (bootverbose)
430		ieee80211_announce(ic);
431
432	return (0);
433
434detach:
435	zyd_detach(dev);
436	return (ENXIO);			/* failure */
437}
438
439static int
440zyd_detach(device_t dev)
441{
442	struct zyd_softc *sc = device_get_softc(dev);
443	struct ifnet *ifp = sc->sc_ifp;
444	struct ieee80211com *ic;
445
446	/* stop all USB transfers */
447	usbd_transfer_unsetup(sc->sc_xfer, ZYD_N_TRANSFER);
448
449	/* free TX list, if any */
450	zyd_unsetup_tx_list(sc);
451
452	if (ifp) {
453		ic = ifp->if_l2com;
454		ieee80211_ifdetach(ic);
455		if_free(ifp);
456	}
457	mtx_destroy(&sc->sc_mtx);
458
459	return (0);
460}
461
462static struct ieee80211vap *
463zyd_vap_create(struct ieee80211com *ic,
464	const char name[IFNAMSIZ], int unit, int opmode, int flags,
465	const uint8_t bssid[IEEE80211_ADDR_LEN],
466	const uint8_t mac[IEEE80211_ADDR_LEN])
467{
468	struct zyd_vap *zvp;
469	struct ieee80211vap *vap;
470
471	if (!TAILQ_EMPTY(&ic->ic_vaps))		/* only one at a time */
472		return (NULL);
473	zvp = (struct zyd_vap *) malloc(sizeof(struct zyd_vap),
474	    M_80211_VAP, M_NOWAIT | M_ZERO);
475	if (zvp == NULL)
476		return (NULL);
477	vap = &zvp->vap;
478	/* enable s/w bmiss handling for sta mode */
479	ieee80211_vap_setup(ic, vap, name, unit, opmode,
480	    flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
481
482	/* override state transition machine */
483	zvp->newstate = vap->iv_newstate;
484	vap->iv_newstate = zyd_newstate;
485
486	ieee80211_amrr_init(&zvp->amrr, vap,
487	    IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
488	    IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
489	    1000 /* 1 sec */);
490
491	/* complete setup */
492	ieee80211_vap_attach(vap, ieee80211_media_change,
493	    ieee80211_media_status);
494	ic->ic_opmode = opmode;
495	return (vap);
496}
497
498static void
499zyd_vap_delete(struct ieee80211vap *vap)
500{
501	struct zyd_vap *zvp = ZYD_VAP(vap);
502
503	ieee80211_amrr_cleanup(&zvp->amrr);
504	ieee80211_vap_detach(vap);
505	free(zvp, M_80211_VAP);
506}
507
508static void
509zyd_tx_free(struct zyd_tx_data *data, int txerr)
510{
511	struct zyd_softc *sc = data->sc;
512
513	if (data->m != NULL) {
514		if (data->m->m_flags & M_TXCB)
515			ieee80211_process_callback(data->ni, data->m,
516			    txerr ? ETIMEDOUT : 0);
517		m_freem(data->m);
518		data->m = NULL;
519
520		if (txerr == 0)
521			ieee80211_amrr_tx_complete(&ZYD_NODE(data->ni)->amn,
522			    IEEE80211_AMRR_SUCCESS, 0);
523		ieee80211_free_node(data->ni);
524		data->ni = NULL;
525	}
526	STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
527	sc->tx_nfree++;
528}
529
530static void
531zyd_setup_tx_list(struct zyd_softc *sc)
532{
533	struct zyd_tx_data *data;
534	int i;
535
536	sc->tx_nfree = 0;
537	STAILQ_INIT(&sc->tx_q);
538	STAILQ_INIT(&sc->tx_free);
539
540	for (i = 0; i < ZYD_TX_LIST_CNT; i++) {
541		data = &sc->tx_data[i];
542
543		data->sc = sc;
544		STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
545		sc->tx_nfree++;
546	}
547}
548
549static void
550zyd_unsetup_tx_list(struct zyd_softc *sc)
551{
552	struct zyd_tx_data *data;
553	int i;
554
555	/* make sure any subsequent use of the queues will fail */
556	sc->tx_nfree = 0;
557	STAILQ_INIT(&sc->tx_q);
558	STAILQ_INIT(&sc->tx_free);
559
560	/* free up all node references and mbufs */
561	for (i = 0; i < ZYD_TX_LIST_CNT; i++) {
562		data = &sc->tx_data[i];
563
564		if (data->m != NULL) {
565			m_freem(data->m);
566			data->m = NULL;
567		}
568		if (data->ni != NULL) {
569			ieee80211_free_node(data->ni);
570			data->ni = NULL;
571		}
572	}
573}
574
575/* ARGUSED */
576static struct ieee80211_node *
577zyd_node_alloc(struct ieee80211vap *vap __unused,
578	const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
579{
580	struct zyd_node *zn;
581
582	zn = malloc(sizeof(struct zyd_node), M_80211_NODE, M_NOWAIT | M_ZERO);
583	return (zn != NULL) ? (&zn->ni) : (NULL);
584}
585
586static int
587zyd_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
588{
589	struct zyd_vap *zvp = ZYD_VAP(vap);
590	struct ieee80211com *ic = vap->iv_ic;
591	struct zyd_softc *sc = ic->ic_ifp->if_softc;
592	struct ieee80211_node *ni;
593	int error;
594
595	DPRINTF(sc, ZYD_DEBUG_STATE, "%s: %s -> %s\n", __func__,
596	    ieee80211_state_name[vap->iv_state],
597	    ieee80211_state_name[nstate]);
598
599	IEEE80211_UNLOCK(ic);
600	ZYD_LOCK(sc);
601	switch (nstate) {
602	case IEEE80211_S_AUTH:
603		zyd_set_chan(sc, ic->ic_curchan);
604		break;
605	case IEEE80211_S_RUN:
606		ni = vap->iv_bss;
607		if (vap->iv_opmode == IEEE80211_M_MONITOR)
608			break;
609
610		/* turn link LED on */
611		error = zyd_set_led(sc, ZYD_LED1, 1);
612		if (error != 0)
613			break;
614
615		/* make data LED blink upon Tx */
616		zyd_write32_m(sc, sc->sc_fwbase + ZYD_FW_LINK_STATUS, 1);
617
618		IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
619		zyd_set_bssid(sc, sc->sc_bssid);
620		break;
621	default:
622		break;
623	}
624fail:
625	ZYD_UNLOCK(sc);
626	IEEE80211_LOCK(ic);
627	return (zvp->newstate(vap, nstate, arg));
628}
629
630/*
631 * Callback handler for interrupt transfer
632 */
633static void
634zyd_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
635{
636	struct zyd_softc *sc = usbd_xfer_softc(xfer);
637	struct ifnet *ifp = sc->sc_ifp;
638	struct ieee80211com *ic = ifp->if_l2com;
639	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
640	struct ieee80211_node *ni;
641	struct zyd_cmd *cmd = &sc->sc_ibuf;
642	struct usb_page_cache *pc;
643	int datalen;
644	int actlen;
645
646	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
647
648	switch (USB_GET_STATE(xfer)) {
649	case USB_ST_TRANSFERRED:
650		pc = usbd_xfer_get_frame(xfer, 0);
651		usbd_copy_out(pc, 0, cmd, sizeof(*cmd));
652
653		switch (le16toh(cmd->code)) {
654		case ZYD_NOTIF_RETRYSTATUS:
655		{
656			struct zyd_notif_retry *retry =
657			    (struct zyd_notif_retry *)cmd->data;
658
659			DPRINTF(sc, ZYD_DEBUG_TX_PROC,
660			    "retry intr: rate=0x%x addr=%s count=%d (0x%x)\n",
661			    le16toh(retry->rate), ether_sprintf(retry->macaddr),
662			    le16toh(retry->count)&0xff, le16toh(retry->count));
663
664			/*
665			 * Find the node to which the packet was sent and
666			 * update its retry statistics.  In BSS mode, this node
667			 * is the AP we're associated to so no lookup is
668			 * actually needed.
669			 */
670			ni = ieee80211_find_txnode(vap, retry->macaddr);
671			if (ni != NULL) {
672				ieee80211_amrr_tx_complete(&ZYD_NODE(ni)->amn,
673				    IEEE80211_AMRR_FAILURE,
674				    (int)(le16toh(retry->count) & 0xff));
675				ieee80211_free_node(ni);
676			}
677			if (le16toh(retry->count) & 0x100)
678				ifp->if_oerrors++;	/* too many retries */
679			break;
680		}
681		case ZYD_NOTIF_IORD:
682		{
683			struct zyd_rq *rqp;
684
685			if (le16toh(*(uint16_t *)cmd->data) == ZYD_CR_INTERRUPT)
686				break;	/* HMAC interrupt */
687
688			datalen = actlen - sizeof(cmd->code);
689			datalen -= 2;	/* XXX: padding? */
690
691			STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
692				int i, cnt;
693
694				if (rqp->olen != datalen)
695					continue;
696				cnt = rqp->olen / sizeof(struct zyd_pair);
697				for (i = 0; i < cnt; i++) {
698					if (*(((const uint16_t *)rqp->idata) + i) !=
699					    (((struct zyd_pair *)cmd->data) + i)->reg)
700						break;
701				}
702				if (i != cnt)
703					continue;
704				/* copy answer into caller-supplied buffer */
705				bcopy(cmd->data, rqp->odata, rqp->olen);
706				DPRINTF(sc, ZYD_DEBUG_CMD,
707				    "command %p complete, data = %*D \n",
708				    rqp, rqp->olen, rqp->odata, ":");
709				wakeup(rqp);	/* wakeup caller */
710				break;
711			}
712			if (rqp == NULL) {
713				device_printf(sc->sc_dev,
714				    "unexpected IORD notification %*D\n",
715				    datalen, cmd->data, ":");
716			}
717			break;
718		}
719		default:
720			device_printf(sc->sc_dev, "unknown notification %x\n",
721			    le16toh(cmd->code));
722		}
723
724		/* FALLTHROUGH */
725	case USB_ST_SETUP:
726tr_setup:
727		usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
728		usbd_transfer_submit(xfer);
729		break;
730
731	default:			/* Error */
732		DPRINTF(sc, ZYD_DEBUG_CMD, "error = %s\n",
733		    usbd_errstr(error));
734
735		if (error != USB_ERR_CANCELLED) {
736			/* try to clear stall first */
737			usbd_xfer_set_stall(xfer);
738			goto tr_setup;
739		}
740		break;
741	}
742}
743
744static void
745zyd_intr_write_callback(struct usb_xfer *xfer, usb_error_t error)
746{
747	struct zyd_softc *sc = usbd_xfer_softc(xfer);
748	struct zyd_rq *rqp, *cmd;
749	struct usb_page_cache *pc;
750
751	switch (USB_GET_STATE(xfer)) {
752	case USB_ST_TRANSFERRED:
753		cmd = usbd_xfer_get_priv(xfer);
754		DPRINTF(sc, ZYD_DEBUG_CMD, "command %p transferred\n", cmd);
755		STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
756			/* Ensure the cached rq pointer is still valid */
757			if (rqp == cmd &&
758			    (rqp->flags & ZYD_CMD_FLAG_READ) == 0)
759				wakeup(rqp);	/* wakeup caller */
760		}
761
762		/* FALLTHROUGH */
763	case USB_ST_SETUP:
764tr_setup:
765		STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
766			if (rqp->flags & ZYD_CMD_FLAG_SENT)
767				continue;
768
769			pc = usbd_xfer_get_frame(xfer, 0);
770			usbd_copy_in(pc, 0, rqp->cmd, rqp->ilen);
771
772			usbd_xfer_set_frame_len(xfer, 0, rqp->ilen);
773			usbd_xfer_set_priv(xfer, rqp);
774			rqp->flags |= ZYD_CMD_FLAG_SENT;
775			usbd_transfer_submit(xfer);
776			break;
777		}
778		break;
779
780	default:			/* Error */
781		DPRINTF(sc, ZYD_DEBUG_ANY, "error = %s\n",
782		    usbd_errstr(error));
783
784		if (error != USB_ERR_CANCELLED) {
785			/* try to clear stall first */
786			usbd_xfer_set_stall(xfer);
787			goto tr_setup;
788		}
789		break;
790	}
791}
792
793static int
794zyd_cmd(struct zyd_softc *sc, uint16_t code, const void *idata, int ilen,
795    void *odata, int olen, int flags)
796{
797	struct zyd_cmd cmd;
798	struct zyd_rq rq;
799	int error;
800
801	if (ilen > sizeof(cmd.data))
802		return (EINVAL);
803
804	cmd.code = htole16(code);
805	bcopy(idata, cmd.data, ilen);
806	DPRINTF(sc, ZYD_DEBUG_CMD, "sending cmd %p = %*D\n",
807	    &rq, ilen, idata, ":");
808
809	rq.cmd = &cmd;
810	rq.idata = idata;
811	rq.odata = odata;
812	rq.ilen = sizeof(uint16_t) + ilen;
813	rq.olen = olen;
814	rq.flags = flags;
815	STAILQ_INSERT_TAIL(&sc->sc_rqh, &rq, rq);
816	usbd_transfer_start(sc->sc_xfer[ZYD_INTR_RD]);
817	usbd_transfer_start(sc->sc_xfer[ZYD_INTR_WR]);
818
819	/* wait at most one second for command reply */
820	error = mtx_sleep(&rq, &sc->sc_mtx, 0 , "zydcmd", hz);
821	if (error)
822		device_printf(sc->sc_dev, "command timeout\n");
823	STAILQ_REMOVE(&sc->sc_rqh, &rq, zyd_rq, rq);
824	DPRINTF(sc, ZYD_DEBUG_CMD, "finsihed cmd %p, error = %d \n",
825	    &rq, error);
826
827	return (error);
828}
829
830static int
831zyd_read16(struct zyd_softc *sc, uint16_t reg, uint16_t *val)
832{
833	struct zyd_pair tmp;
834	int error;
835
836	reg = htole16(reg);
837	error = zyd_cmd(sc, ZYD_CMD_IORD, &reg, sizeof(reg), &tmp, sizeof(tmp),
838	    ZYD_CMD_FLAG_READ);
839	if (error == 0)
840		*val = le16toh(tmp.val);
841	return (error);
842}
843
844static int
845zyd_read32(struct zyd_softc *sc, uint16_t reg, uint32_t *val)
846{
847	struct zyd_pair tmp[2];
848	uint16_t regs[2];
849	int error;
850
851	regs[0] = htole16(ZYD_REG32_HI(reg));
852	regs[1] = htole16(ZYD_REG32_LO(reg));
853	error = zyd_cmd(sc, ZYD_CMD_IORD, regs, sizeof(regs), tmp, sizeof(tmp),
854	    ZYD_CMD_FLAG_READ);
855	if (error == 0)
856		*val = le16toh(tmp[0].val) << 16 | le16toh(tmp[1].val);
857	return (error);
858}
859
860static int
861zyd_write16(struct zyd_softc *sc, uint16_t reg, uint16_t val)
862{
863	struct zyd_pair pair;
864
865	pair.reg = htole16(reg);
866	pair.val = htole16(val);
867
868	return zyd_cmd(sc, ZYD_CMD_IOWR, &pair, sizeof(pair), NULL, 0, 0);
869}
870
871static int
872zyd_write32(struct zyd_softc *sc, uint16_t reg, uint32_t val)
873{
874	struct zyd_pair pair[2];
875
876	pair[0].reg = htole16(ZYD_REG32_HI(reg));
877	pair[0].val = htole16(val >> 16);
878	pair[1].reg = htole16(ZYD_REG32_LO(reg));
879	pair[1].val = htole16(val & 0xffff);
880
881	return zyd_cmd(sc, ZYD_CMD_IOWR, pair, sizeof(pair), NULL, 0, 0);
882}
883
884static int
885zyd_rfwrite(struct zyd_softc *sc, uint32_t val)
886{
887	struct zyd_rf *rf = &sc->sc_rf;
888	struct zyd_rfwrite_cmd req;
889	uint16_t cr203;
890	int error, i;
891
892	zyd_read16_m(sc, ZYD_CR203, &cr203);
893	cr203 &= ~(ZYD_RF_IF_LE | ZYD_RF_CLK | ZYD_RF_DATA);
894
895	req.code  = htole16(2);
896	req.width = htole16(rf->width);
897	for (i = 0; i < rf->width; i++) {
898		req.bit[i] = htole16(cr203);
899		if (val & (1 << (rf->width - 1 - i)))
900			req.bit[i] |= htole16(ZYD_RF_DATA);
901	}
902	error = zyd_cmd(sc, ZYD_CMD_RFCFG, &req, 4 + 2 * rf->width, NULL, 0, 0);
903fail:
904	return (error);
905}
906
907static int
908zyd_rfwrite_cr(struct zyd_softc *sc, uint32_t val)
909{
910	int error;
911
912	zyd_write16_m(sc, ZYD_CR244, (val >> 16) & 0xff);
913	zyd_write16_m(sc, ZYD_CR243, (val >>  8) & 0xff);
914	zyd_write16_m(sc, ZYD_CR242, (val >>  0) & 0xff);
915fail:
916	return (error);
917}
918
919static int
920zyd_lock_phy(struct zyd_softc *sc)
921{
922	int error;
923	uint32_t tmp;
924
925	zyd_read32_m(sc, ZYD_MAC_MISC, &tmp);
926	tmp &= ~ZYD_UNLOCK_PHY_REGS;
927	zyd_write32_m(sc, ZYD_MAC_MISC, tmp);
928fail:
929	return (error);
930}
931
932static int
933zyd_unlock_phy(struct zyd_softc *sc)
934{
935	int error;
936	uint32_t tmp;
937
938	zyd_read32_m(sc, ZYD_MAC_MISC, &tmp);
939	tmp |= ZYD_UNLOCK_PHY_REGS;
940	zyd_write32_m(sc, ZYD_MAC_MISC, tmp);
941fail:
942	return (error);
943}
944
945/*
946 * RFMD RF methods.
947 */
948static int
949zyd_rfmd_init(struct zyd_rf *rf)
950{
951#define N(a)	(sizeof(a) / sizeof((a)[0]))
952	struct zyd_softc *sc = rf->rf_sc;
953	static const struct zyd_phy_pair phyini[] = ZYD_RFMD_PHY;
954	static const uint32_t rfini[] = ZYD_RFMD_RF;
955	int i, error;
956
957	/* init RF-dependent PHY registers */
958	for (i = 0; i < N(phyini); i++) {
959		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
960	}
961
962	/* init RFMD radio */
963	for (i = 0; i < N(rfini); i++) {
964		if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
965			return (error);
966	}
967fail:
968	return (error);
969#undef N
970}
971
972static int
973zyd_rfmd_switch_radio(struct zyd_rf *rf, int on)
974{
975	int error;
976	struct zyd_softc *sc = rf->rf_sc;
977
978	zyd_write16_m(sc, ZYD_CR10, on ? 0x89 : 0x15);
979	zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x81);
980fail:
981	return (error);
982}
983
984static int
985zyd_rfmd_set_channel(struct zyd_rf *rf, uint8_t chan)
986{
987	int error;
988	struct zyd_softc *sc = rf->rf_sc;
989	static const struct {
990		uint32_t	r1, r2;
991	} rfprog[] = ZYD_RFMD_CHANTABLE;
992
993	error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
994	if (error != 0)
995		goto fail;
996	error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
997	if (error != 0)
998		goto fail;
999
1000fail:
1001	return (error);
1002}
1003
1004/*
1005 * AL2230 RF methods.
1006 */
1007static int
1008zyd_al2230_init(struct zyd_rf *rf)
1009{
1010#define N(a)	(sizeof(a) / sizeof((a)[0]))
1011	struct zyd_softc *sc = rf->rf_sc;
1012	static const struct zyd_phy_pair phyini[] = ZYD_AL2230_PHY;
1013	static const struct zyd_phy_pair phy2230s[] = ZYD_AL2230S_PHY_INIT;
1014	static const struct zyd_phy_pair phypll[] = {
1015		{ ZYD_CR251, 0x2f }, { ZYD_CR251, 0x3f },
1016		{ ZYD_CR138, 0x28 }, { ZYD_CR203, 0x06 }
1017	};
1018	static const uint32_t rfini1[] = ZYD_AL2230_RF_PART1;
1019	static const uint32_t rfini2[] = ZYD_AL2230_RF_PART2;
1020	static const uint32_t rfini3[] = ZYD_AL2230_RF_PART3;
1021	int i, error;
1022
1023	/* init RF-dependent PHY registers */
1024	for (i = 0; i < N(phyini); i++)
1025		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1026
1027	if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0) {
1028		for (i = 0; i < N(phy2230s); i++)
1029			zyd_write16_m(sc, phy2230s[i].reg, phy2230s[i].val);
1030	}
1031
1032	/* init AL2230 radio */
1033	for (i = 0; i < N(rfini1); i++) {
1034		error = zyd_rfwrite(sc, rfini1[i]);
1035		if (error != 0)
1036			goto fail;
1037	}
1038
1039	if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0)
1040		error = zyd_rfwrite(sc, 0x000824);
1041	else
1042		error = zyd_rfwrite(sc, 0x0005a4);
1043	if (error != 0)
1044		goto fail;
1045
1046	for (i = 0; i < N(rfini2); i++) {
1047		error = zyd_rfwrite(sc, rfini2[i]);
1048		if (error != 0)
1049			goto fail;
1050	}
1051
1052	for (i = 0; i < N(phypll); i++)
1053		zyd_write16_m(sc, phypll[i].reg, phypll[i].val);
1054
1055	for (i = 0; i < N(rfini3); i++) {
1056		error = zyd_rfwrite(sc, rfini3[i]);
1057		if (error != 0)
1058			goto fail;
1059	}
1060fail:
1061	return (error);
1062#undef N
1063}
1064
1065static int
1066zyd_al2230_fini(struct zyd_rf *rf)
1067{
1068#define N(a)	(sizeof(a) / sizeof((a)[0]))
1069	int error, i;
1070	struct zyd_softc *sc = rf->rf_sc;
1071	static const struct zyd_phy_pair phy[] = ZYD_AL2230_PHY_FINI_PART1;
1072
1073	for (i = 0; i < N(phy); i++)
1074		zyd_write16_m(sc, phy[i].reg, phy[i].val);
1075
1076	if (sc->sc_newphy != 0)
1077		zyd_write16_m(sc, ZYD_CR9, 0xe1);
1078
1079	zyd_write16_m(sc, ZYD_CR203, 0x6);
1080fail:
1081	return (error);
1082#undef N
1083}
1084
1085static int
1086zyd_al2230_init_b(struct zyd_rf *rf)
1087{
1088#define N(a)	(sizeof(a) / sizeof((a)[0]))
1089	struct zyd_softc *sc = rf->rf_sc;
1090	static const struct zyd_phy_pair phy1[] = ZYD_AL2230_PHY_PART1;
1091	static const struct zyd_phy_pair phy2[] = ZYD_AL2230_PHY_PART2;
1092	static const struct zyd_phy_pair phy3[] = ZYD_AL2230_PHY_PART3;
1093	static const struct zyd_phy_pair phy2230s[] = ZYD_AL2230S_PHY_INIT;
1094	static const struct zyd_phy_pair phyini[] = ZYD_AL2230_PHY_B;
1095	static const uint32_t rfini_part1[] = ZYD_AL2230_RF_B_PART1;
1096	static const uint32_t rfini_part2[] = ZYD_AL2230_RF_B_PART2;
1097	static const uint32_t rfini_part3[] = ZYD_AL2230_RF_B_PART3;
1098	static const uint32_t zyd_al2230_chtable[][3] = ZYD_AL2230_CHANTABLE;
1099	int i, error;
1100
1101	for (i = 0; i < N(phy1); i++)
1102		zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
1103
1104	/* init RF-dependent PHY registers */
1105	for (i = 0; i < N(phyini); i++)
1106		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1107
1108	if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0) {
1109		for (i = 0; i < N(phy2230s); i++)
1110			zyd_write16_m(sc, phy2230s[i].reg, phy2230s[i].val);
1111	}
1112
1113	for (i = 0; i < 3; i++) {
1114		error = zyd_rfwrite_cr(sc, zyd_al2230_chtable[0][i]);
1115		if (error != 0)
1116			return (error);
1117	}
1118
1119	for (i = 0; i < N(rfini_part1); i++) {
1120		error = zyd_rfwrite_cr(sc, rfini_part1[i]);
1121		if (error != 0)
1122			return (error);
1123	}
1124
1125	if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0)
1126		error = zyd_rfwrite(sc, 0x241000);
1127	else
1128		error = zyd_rfwrite(sc, 0x25a000);
1129	if (error != 0)
1130		goto fail;
1131
1132	for (i = 0; i < N(rfini_part2); i++) {
1133		error = zyd_rfwrite_cr(sc, rfini_part2[i]);
1134		if (error != 0)
1135			return (error);
1136	}
1137
1138	for (i = 0; i < N(phy2); i++)
1139		zyd_write16_m(sc, phy2[i].reg, phy2[i].val);
1140
1141	for (i = 0; i < N(rfini_part3); i++) {
1142		error = zyd_rfwrite_cr(sc, rfini_part3[i]);
1143		if (error != 0)
1144			return (error);
1145	}
1146
1147	for (i = 0; i < N(phy3); i++)
1148		zyd_write16_m(sc, phy3[i].reg, phy3[i].val);
1149
1150	error = zyd_al2230_fini(rf);
1151fail:
1152	return (error);
1153#undef N
1154}
1155
1156static int
1157zyd_al2230_switch_radio(struct zyd_rf *rf, int on)
1158{
1159	struct zyd_softc *sc = rf->rf_sc;
1160	int error, on251 = (sc->sc_macrev == ZYD_ZD1211) ? 0x3f : 0x7f;
1161
1162	zyd_write16_m(sc, ZYD_CR11,  on ? 0x00 : 0x04);
1163	zyd_write16_m(sc, ZYD_CR251, on ? on251 : 0x2f);
1164fail:
1165	return (error);
1166}
1167
1168static int
1169zyd_al2230_set_channel(struct zyd_rf *rf, uint8_t chan)
1170{
1171#define N(a)	(sizeof(a) / sizeof((a)[0]))
1172	int error, i;
1173	struct zyd_softc *sc = rf->rf_sc;
1174	static const struct zyd_phy_pair phy1[] = {
1175		{ ZYD_CR138, 0x28 }, { ZYD_CR203, 0x06 },
1176	};
1177	static const struct {
1178		uint32_t	r1, r2, r3;
1179	} rfprog[] = ZYD_AL2230_CHANTABLE;
1180
1181	error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
1182	if (error != 0)
1183		goto fail;
1184	error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
1185	if (error != 0)
1186		goto fail;
1187	error = zyd_rfwrite(sc, rfprog[chan - 1].r3);
1188	if (error != 0)
1189		goto fail;
1190
1191	for (i = 0; i < N(phy1); i++)
1192		zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
1193fail:
1194	return (error);
1195#undef N
1196}
1197
1198static int
1199zyd_al2230_set_channel_b(struct zyd_rf *rf, uint8_t chan)
1200{
1201#define N(a)	(sizeof(a) / sizeof((a)[0]))
1202	int error, i;
1203	struct zyd_softc *sc = rf->rf_sc;
1204	static const struct zyd_phy_pair phy1[] = ZYD_AL2230_PHY_PART1;
1205	static const struct {
1206		uint32_t	r1, r2, r3;
1207	} rfprog[] = ZYD_AL2230_CHANTABLE_B;
1208
1209	for (i = 0; i < N(phy1); i++)
1210		zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
1211
1212	error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r1);
1213	if (error != 0)
1214		goto fail;
1215	error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r2);
1216	if (error != 0)
1217		goto fail;
1218	error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r3);
1219	if (error != 0)
1220		goto fail;
1221	error = zyd_al2230_fini(rf);
1222fail:
1223	return (error);
1224#undef N
1225}
1226
1227#define	ZYD_AL2230_PHY_BANDEDGE6					\
1228{									\
1229	{ ZYD_CR128, 0x14 }, { ZYD_CR129, 0x12 }, { ZYD_CR130, 0x10 },	\
1230	{ ZYD_CR47,  0x1e }						\
1231}
1232
1233static int
1234zyd_al2230_bandedge6(struct zyd_rf *rf, struct ieee80211_channel *c)
1235{
1236#define N(a)	(sizeof(a) / sizeof((a)[0]))
1237	int error = 0, i;
1238	struct zyd_softc *sc = rf->rf_sc;
1239	struct ifnet *ifp = sc->sc_ifp;
1240	struct ieee80211com *ic = ifp->if_l2com;
1241	struct zyd_phy_pair r[] = ZYD_AL2230_PHY_BANDEDGE6;
1242	int chan = ieee80211_chan2ieee(ic, c);
1243
1244	if (chan == 1 || chan == 11)
1245		r[0].val = 0x12;
1246
1247	for (i = 0; i < N(r); i++)
1248		zyd_write16_m(sc, r[i].reg, r[i].val);
1249fail:
1250	return (error);
1251#undef N
1252}
1253
1254/*
1255 * AL7230B RF methods.
1256 */
1257static int
1258zyd_al7230B_init(struct zyd_rf *rf)
1259{
1260#define N(a)	(sizeof(a) / sizeof((a)[0]))
1261	struct zyd_softc *sc = rf->rf_sc;
1262	static const struct zyd_phy_pair phyini_1[] = ZYD_AL7230B_PHY_1;
1263	static const struct zyd_phy_pair phyini_2[] = ZYD_AL7230B_PHY_2;
1264	static const struct zyd_phy_pair phyini_3[] = ZYD_AL7230B_PHY_3;
1265	static const uint32_t rfini_1[] = ZYD_AL7230B_RF_1;
1266	static const uint32_t rfini_2[] = ZYD_AL7230B_RF_2;
1267	int i, error;
1268
1269	/* for AL7230B, PHY and RF need to be initialized in "phases" */
1270
1271	/* init RF-dependent PHY registers, part one */
1272	for (i = 0; i < N(phyini_1); i++)
1273		zyd_write16_m(sc, phyini_1[i].reg, phyini_1[i].val);
1274
1275	/* init AL7230B radio, part one */
1276	for (i = 0; i < N(rfini_1); i++) {
1277		if ((error = zyd_rfwrite(sc, rfini_1[i])) != 0)
1278			return (error);
1279	}
1280	/* init RF-dependent PHY registers, part two */
1281	for (i = 0; i < N(phyini_2); i++)
1282		zyd_write16_m(sc, phyini_2[i].reg, phyini_2[i].val);
1283
1284	/* init AL7230B radio, part two */
1285	for (i = 0; i < N(rfini_2); i++) {
1286		if ((error = zyd_rfwrite(sc, rfini_2[i])) != 0)
1287			return (error);
1288	}
1289	/* init RF-dependent PHY registers, part three */
1290	for (i = 0; i < N(phyini_3); i++)
1291		zyd_write16_m(sc, phyini_3[i].reg, phyini_3[i].val);
1292fail:
1293	return (error);
1294#undef N
1295}
1296
1297static int
1298zyd_al7230B_switch_radio(struct zyd_rf *rf, int on)
1299{
1300	int error;
1301	struct zyd_softc *sc = rf->rf_sc;
1302
1303	zyd_write16_m(sc, ZYD_CR11,  on ? 0x00 : 0x04);
1304	zyd_write16_m(sc, ZYD_CR251, on ? 0x3f : 0x2f);
1305fail:
1306	return (error);
1307}
1308
1309static int
1310zyd_al7230B_set_channel(struct zyd_rf *rf, uint8_t chan)
1311{
1312#define N(a)	(sizeof(a) / sizeof((a)[0]))
1313	struct zyd_softc *sc = rf->rf_sc;
1314	static const struct {
1315		uint32_t	r1, r2;
1316	} rfprog[] = ZYD_AL7230B_CHANTABLE;
1317	static const uint32_t rfsc[] = ZYD_AL7230B_RF_SETCHANNEL;
1318	int i, error;
1319
1320	zyd_write16_m(sc, ZYD_CR240, 0x57);
1321	zyd_write16_m(sc, ZYD_CR251, 0x2f);
1322
1323	for (i = 0; i < N(rfsc); i++) {
1324		if ((error = zyd_rfwrite(sc, rfsc[i])) != 0)
1325			return (error);
1326	}
1327
1328	zyd_write16_m(sc, ZYD_CR128, 0x14);
1329	zyd_write16_m(sc, ZYD_CR129, 0x12);
1330	zyd_write16_m(sc, ZYD_CR130, 0x10);
1331	zyd_write16_m(sc, ZYD_CR38,  0x38);
1332	zyd_write16_m(sc, ZYD_CR136, 0xdf);
1333
1334	error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
1335	if (error != 0)
1336		goto fail;
1337	error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
1338	if (error != 0)
1339		goto fail;
1340	error = zyd_rfwrite(sc, 0x3c9000);
1341	if (error != 0)
1342		goto fail;
1343
1344	zyd_write16_m(sc, ZYD_CR251, 0x3f);
1345	zyd_write16_m(sc, ZYD_CR203, 0x06);
1346	zyd_write16_m(sc, ZYD_CR240, 0x08);
1347fail:
1348	return (error);
1349#undef N
1350}
1351
1352/*
1353 * AL2210 RF methods.
1354 */
1355static int
1356zyd_al2210_init(struct zyd_rf *rf)
1357{
1358#define N(a)	(sizeof(a) / sizeof((a)[0]))
1359	struct zyd_softc *sc = rf->rf_sc;
1360	static const struct zyd_phy_pair phyini[] = ZYD_AL2210_PHY;
1361	static const uint32_t rfini[] = ZYD_AL2210_RF;
1362	uint32_t tmp;
1363	int i, error;
1364
1365	zyd_write32_m(sc, ZYD_CR18, 2);
1366
1367	/* init RF-dependent PHY registers */
1368	for (i = 0; i < N(phyini); i++)
1369		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1370
1371	/* init AL2210 radio */
1372	for (i = 0; i < N(rfini); i++) {
1373		if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
1374			return (error);
1375	}
1376	zyd_write16_m(sc, ZYD_CR47, 0x1e);
1377	zyd_read32_m(sc, ZYD_CR_RADIO_PD, &tmp);
1378	zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp & ~1);
1379	zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp | 1);
1380	zyd_write32_m(sc, ZYD_CR_RFCFG, 0x05);
1381	zyd_write32_m(sc, ZYD_CR_RFCFG, 0x00);
1382	zyd_write16_m(sc, ZYD_CR47, 0x1e);
1383	zyd_write32_m(sc, ZYD_CR18, 3);
1384fail:
1385	return (error);
1386#undef N
1387}
1388
1389static int
1390zyd_al2210_switch_radio(struct zyd_rf *rf, int on)
1391{
1392	/* vendor driver does nothing for this RF chip */
1393
1394	return (0);
1395}
1396
1397static int
1398zyd_al2210_set_channel(struct zyd_rf *rf, uint8_t chan)
1399{
1400	int error;
1401	struct zyd_softc *sc = rf->rf_sc;
1402	static const uint32_t rfprog[] = ZYD_AL2210_CHANTABLE;
1403	uint32_t tmp;
1404
1405	zyd_write32_m(sc, ZYD_CR18, 2);
1406	zyd_write16_m(sc, ZYD_CR47, 0x1e);
1407	zyd_read32_m(sc, ZYD_CR_RADIO_PD, &tmp);
1408	zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp & ~1);
1409	zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp | 1);
1410	zyd_write32_m(sc, ZYD_CR_RFCFG, 0x05);
1411	zyd_write32_m(sc, ZYD_CR_RFCFG, 0x00);
1412	zyd_write16_m(sc, ZYD_CR47, 0x1e);
1413
1414	/* actually set the channel */
1415	error = zyd_rfwrite(sc, rfprog[chan - 1]);
1416	if (error != 0)
1417		goto fail;
1418
1419	zyd_write32_m(sc, ZYD_CR18, 3);
1420fail:
1421	return (error);
1422}
1423
1424/*
1425 * GCT RF methods.
1426 */
1427static int
1428zyd_gct_init(struct zyd_rf *rf)
1429{
1430#define	ZYD_GCT_INTR_REG	0x85c1
1431#define N(a)	(sizeof(a) / sizeof((a)[0]))
1432	struct zyd_softc *sc = rf->rf_sc;
1433	static const struct zyd_phy_pair phyini[] = ZYD_GCT_PHY;
1434	static const uint32_t rfini[] = ZYD_GCT_RF;
1435	static const uint16_t vco[11][7] = ZYD_GCT_VCO;
1436	int i, idx = -1, error;
1437	uint16_t data;
1438
1439	/* init RF-dependent PHY registers */
1440	for (i = 0; i < N(phyini); i++)
1441		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1442
1443	/* init cgt radio */
1444	for (i = 0; i < N(rfini); i++) {
1445		if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
1446			return (error);
1447	}
1448
1449	error = zyd_gct_mode(rf);
1450	if (error != 0)
1451		return (error);
1452
1453	for (i = 0; i < N(vco) - 1; i++) {
1454		error = zyd_gct_set_channel_synth(rf, 1, 0);
1455		if (error != 0)
1456			goto fail;
1457		error = zyd_gct_write(rf, vco[i][0]);
1458		if (error != 0)
1459			goto fail;
1460		zyd_write16_m(sc, ZYD_GCT_INTR_REG, 0xf);
1461		zyd_read16_m(sc, ZYD_GCT_INTR_REG, &data);
1462		if ((data & 0xf) == 0) {
1463			idx = i;
1464			break;
1465		}
1466	}
1467	if (idx == -1) {
1468		error = zyd_gct_set_channel_synth(rf, 1, 1);
1469		if (error != 0)
1470			goto fail;
1471		error = zyd_gct_write(rf, 0x6662);
1472		if (error != 0)
1473			goto fail;
1474	}
1475
1476	rf->idx = idx;
1477	zyd_write16_m(sc, ZYD_CR203, 0x6);
1478fail:
1479	return (error);
1480#undef N
1481#undef ZYD_GCT_INTR_REG
1482}
1483
1484static int
1485zyd_gct_mode(struct zyd_rf *rf)
1486{
1487#define N(a)	(sizeof(a) / sizeof((a)[0]))
1488	struct zyd_softc *sc = rf->rf_sc;
1489	static const uint32_t mode[] = {
1490		0x25f98, 0x25f9a, 0x25f94, 0x27fd4
1491	};
1492	int i, error;
1493
1494	for (i = 0; i < N(mode); i++) {
1495		if ((error = zyd_rfwrite(sc, mode[i])) != 0)
1496			break;
1497	}
1498	return (error);
1499#undef N
1500}
1501
1502static int
1503zyd_gct_set_channel_synth(struct zyd_rf *rf, int chan, int acal)
1504{
1505	int error, idx = chan - 1;
1506	struct zyd_softc *sc = rf->rf_sc;
1507	static uint32_t acal_synth[] = ZYD_GCT_CHANNEL_ACAL;
1508	static uint32_t std_synth[] = ZYD_GCT_CHANNEL_STD;
1509	static uint32_t div_synth[] = ZYD_GCT_CHANNEL_DIV;
1510
1511	error = zyd_rfwrite(sc,
1512	    (acal == 1) ? acal_synth[idx] : std_synth[idx]);
1513	if (error != 0)
1514		return (error);
1515	return zyd_rfwrite(sc, div_synth[idx]);
1516}
1517
1518static int
1519zyd_gct_write(struct zyd_rf *rf, uint16_t value)
1520{
1521	struct zyd_softc *sc = rf->rf_sc;
1522
1523	return zyd_rfwrite(sc, 0x300000 | 0x40000 | value);
1524}
1525
1526static int
1527zyd_gct_switch_radio(struct zyd_rf *rf, int on)
1528{
1529#define N(a)	(sizeof(a) / sizeof((a)[0]))
1530	int error;
1531	struct zyd_softc *sc = rf->rf_sc;
1532
1533	error = zyd_rfwrite(sc, on ? 0x25f94 : 0x25f90);
1534	if (error != 0)
1535		return (error);
1536
1537	zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x04);
1538	zyd_write16_m(sc, ZYD_CR251,
1539	    on ? ((sc->sc_macrev == ZYD_ZD1211B) ? 0x7f : 0x3f) : 0x2f);
1540fail:
1541	return (error);
1542}
1543
1544static int
1545zyd_gct_set_channel(struct zyd_rf *rf, uint8_t chan)
1546{
1547#define N(a)	(sizeof(a) / sizeof((a)[0]))
1548	int error, i;
1549	struct zyd_softc *sc = rf->rf_sc;
1550	static const struct zyd_phy_pair cmd[] = {
1551		{ ZYD_CR80, 0x30 }, { ZYD_CR81, 0x30 }, { ZYD_CR79, 0x58 },
1552		{ ZYD_CR12, 0xf0 }, { ZYD_CR77, 0x1b }, { ZYD_CR78, 0x58 },
1553	};
1554	static const uint16_t vco[11][7] = ZYD_GCT_VCO;
1555
1556	error = zyd_gct_set_channel_synth(rf, chan, 0);
1557	if (error != 0)
1558		goto fail;
1559	error = zyd_gct_write(rf, (rf->idx == -1) ? 0x6662 :
1560	    vco[rf->idx][((chan - 1) / 2)]);
1561	if (error != 0)
1562		goto fail;
1563	error = zyd_gct_mode(rf);
1564	if (error != 0)
1565		return (error);
1566	for (i = 0; i < N(cmd); i++)
1567		zyd_write16_m(sc, cmd[i].reg, cmd[i].val);
1568	error = zyd_gct_txgain(rf, chan);
1569	if (error != 0)
1570		return (error);
1571	zyd_write16_m(sc, ZYD_CR203, 0x6);
1572fail:
1573	return (error);
1574#undef N
1575}
1576
1577static int
1578zyd_gct_txgain(struct zyd_rf *rf, uint8_t chan)
1579{
1580#define N(a)	(sizeof(a) / sizeof((a)[0]))
1581	struct zyd_softc *sc = rf->rf_sc;
1582	static uint32_t txgain[] = ZYD_GCT_TXGAIN;
1583	uint8_t idx = sc->sc_pwrint[chan - 1];
1584
1585	if (idx >= N(txgain)) {
1586		device_printf(sc->sc_dev, "could not set TX gain (%d %#x)\n",
1587		    chan, idx);
1588		return 0;
1589	}
1590
1591	return zyd_rfwrite(sc, 0x700000 | txgain[idx]);
1592#undef N
1593}
1594
1595/*
1596 * Maxim2 RF methods.
1597 */
1598static int
1599zyd_maxim2_init(struct zyd_rf *rf)
1600{
1601#define N(a)	(sizeof(a) / sizeof((a)[0]))
1602	struct zyd_softc *sc = rf->rf_sc;
1603	static const struct zyd_phy_pair phyini[] = ZYD_MAXIM2_PHY;
1604	static const uint32_t rfini[] = ZYD_MAXIM2_RF;
1605	uint16_t tmp;
1606	int i, error;
1607
1608	/* init RF-dependent PHY registers */
1609	for (i = 0; i < N(phyini); i++)
1610		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1611
1612	zyd_read16_m(sc, ZYD_CR203, &tmp);
1613	zyd_write16_m(sc, ZYD_CR203, tmp & ~(1 << 4));
1614
1615	/* init maxim2 radio */
1616	for (i = 0; i < N(rfini); i++) {
1617		if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
1618			return (error);
1619	}
1620	zyd_read16_m(sc, ZYD_CR203, &tmp);
1621	zyd_write16_m(sc, ZYD_CR203, tmp | (1 << 4));
1622fail:
1623	return (error);
1624#undef N
1625}
1626
1627static int
1628zyd_maxim2_switch_radio(struct zyd_rf *rf, int on)
1629{
1630
1631	/* vendor driver does nothing for this RF chip */
1632	return (0);
1633}
1634
1635static int
1636zyd_maxim2_set_channel(struct zyd_rf *rf, uint8_t chan)
1637{
1638#define N(a)	(sizeof(a) / sizeof((a)[0]))
1639	struct zyd_softc *sc = rf->rf_sc;
1640	static const struct zyd_phy_pair phyini[] = ZYD_MAXIM2_PHY;
1641	static const uint32_t rfini[] = ZYD_MAXIM2_RF;
1642	static const struct {
1643		uint32_t	r1, r2;
1644	} rfprog[] = ZYD_MAXIM2_CHANTABLE;
1645	uint16_t tmp;
1646	int i, error;
1647
1648	/*
1649	 * Do the same as we do when initializing it, except for the channel
1650	 * values coming from the two channel tables.
1651	 */
1652
1653	/* init RF-dependent PHY registers */
1654	for (i = 0; i < N(phyini); i++)
1655		zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
1656
1657	zyd_read16_m(sc, ZYD_CR203, &tmp);
1658	zyd_write16_m(sc, ZYD_CR203, tmp & ~(1 << 4));
1659
1660	/* first two values taken from the chantables */
1661	error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
1662	if (error != 0)
1663		goto fail;
1664	error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
1665	if (error != 0)
1666		goto fail;
1667
1668	/* init maxim2 radio - skipping the two first values */
1669	for (i = 2; i < N(rfini); i++) {
1670		if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
1671			return (error);
1672	}
1673	zyd_read16_m(sc, ZYD_CR203, &tmp);
1674	zyd_write16_m(sc, ZYD_CR203, tmp | (1 << 4));
1675fail:
1676	return (error);
1677#undef N
1678}
1679
1680static int
1681zyd_rf_attach(struct zyd_softc *sc, uint8_t type)
1682{
1683	struct zyd_rf *rf = &sc->sc_rf;
1684
1685	rf->rf_sc = sc;
1686	rf->update_pwr = 1;
1687
1688	switch (type) {
1689	case ZYD_RF_RFMD:
1690		rf->init         = zyd_rfmd_init;
1691		rf->switch_radio = zyd_rfmd_switch_radio;
1692		rf->set_channel  = zyd_rfmd_set_channel;
1693		rf->width        = 24;	/* 24-bit RF values */
1694		break;
1695	case ZYD_RF_AL2230:
1696	case ZYD_RF_AL2230S:
1697		if (sc->sc_macrev == ZYD_ZD1211B) {
1698			rf->init = zyd_al2230_init_b;
1699			rf->set_channel = zyd_al2230_set_channel_b;
1700		} else {
1701			rf->init = zyd_al2230_init;
1702			rf->set_channel = zyd_al2230_set_channel;
1703		}
1704		rf->switch_radio = zyd_al2230_switch_radio;
1705		rf->bandedge6	 = zyd_al2230_bandedge6;
1706		rf->width        = 24;	/* 24-bit RF values */
1707		break;
1708	case ZYD_RF_AL7230B:
1709		rf->init         = zyd_al7230B_init;
1710		rf->switch_radio = zyd_al7230B_switch_radio;
1711		rf->set_channel  = zyd_al7230B_set_channel;
1712		rf->width        = 24;	/* 24-bit RF values */
1713		break;
1714	case ZYD_RF_AL2210:
1715		rf->init         = zyd_al2210_init;
1716		rf->switch_radio = zyd_al2210_switch_radio;
1717		rf->set_channel  = zyd_al2210_set_channel;
1718		rf->width        = 24;	/* 24-bit RF values */
1719		break;
1720	case ZYD_RF_MAXIM_NEW:
1721	case ZYD_RF_GCT:
1722		rf->init         = zyd_gct_init;
1723		rf->switch_radio = zyd_gct_switch_radio;
1724		rf->set_channel  = zyd_gct_set_channel;
1725		rf->width        = 24;	/* 24-bit RF values */
1726		rf->update_pwr   = 0;
1727		break;
1728	case ZYD_RF_MAXIM_NEW2:
1729		rf->init         = zyd_maxim2_init;
1730		rf->switch_radio = zyd_maxim2_switch_radio;
1731		rf->set_channel  = zyd_maxim2_set_channel;
1732		rf->width        = 18;	/* 18-bit RF values */
1733		break;
1734	default:
1735		device_printf(sc->sc_dev,
1736		    "sorry, radio \"%s\" is not supported yet\n",
1737		    zyd_rf_name(type));
1738		return (EINVAL);
1739	}
1740	return (0);
1741}
1742
1743static const char *
1744zyd_rf_name(uint8_t type)
1745{
1746	static const char * const zyd_rfs[] = {
1747		"unknown", "unknown", "UW2451",   "UCHIP",     "AL2230",
1748		"AL7230B", "THETA",   "AL2210",   "MAXIM_NEW", "GCT",
1749		"AL2230S",  "RALINK",  "INTERSIL", "RFMD",      "MAXIM_NEW2",
1750		"PHILIPS"
1751	};
1752
1753	return zyd_rfs[(type > 15) ? 0 : type];
1754}
1755
1756static int
1757zyd_hw_init(struct zyd_softc *sc)
1758{
1759	int error;
1760	const struct zyd_phy_pair *phyp;
1761	struct zyd_rf *rf = &sc->sc_rf;
1762	uint16_t val;
1763
1764	/* specify that the plug and play is finished */
1765	zyd_write32_m(sc, ZYD_MAC_AFTER_PNP, 1);
1766	zyd_read16_m(sc, ZYD_FIRMWARE_BASE_ADDR, &sc->sc_fwbase);
1767	DPRINTF(sc, ZYD_DEBUG_FW, "firmware base address=0x%04x\n",
1768	    sc->sc_fwbase);
1769
1770	/* retrieve firmware revision number */
1771	zyd_read16_m(sc, sc->sc_fwbase + ZYD_FW_FIRMWARE_REV, &sc->sc_fwrev);
1772	zyd_write32_m(sc, ZYD_CR_GPI_EN, 0);
1773	zyd_write32_m(sc, ZYD_MAC_CONT_WIN_LIMIT, 0x7f043f);
1774	/* set mandatory rates - XXX assumes 802.11b/g */
1775	zyd_write32_m(sc, ZYD_MAC_MAN_RATE, 0x150f);
1776
1777	/* disable interrupts */
1778	zyd_write32_m(sc, ZYD_CR_INTERRUPT, 0);
1779
1780	if ((error = zyd_read_pod(sc)) != 0) {
1781		device_printf(sc->sc_dev, "could not read EEPROM\n");
1782		goto fail;
1783	}
1784
1785	/* PHY init (resetting) */
1786	error = zyd_lock_phy(sc);
1787	if (error != 0)
1788		goto fail;
1789	phyp = (sc->sc_macrev == ZYD_ZD1211B) ? zyd_def_phyB : zyd_def_phy;
1790	for (; phyp->reg != 0; phyp++)
1791		zyd_write16_m(sc, phyp->reg, phyp->val);
1792	if (sc->sc_macrev == ZYD_ZD1211 && sc->sc_fix_cr157 != 0) {
1793		zyd_read16_m(sc, ZYD_EEPROM_PHY_REG, &val);
1794		zyd_write32_m(sc, ZYD_CR157, val >> 8);
1795	}
1796	error = zyd_unlock_phy(sc);
1797	if (error != 0)
1798		goto fail;
1799
1800	/* HMAC init */
1801	zyd_write32_m(sc, ZYD_MAC_ACK_EXT, 0x00000020);
1802	zyd_write32_m(sc, ZYD_CR_ADDA_MBIAS_WT, 0x30000808);
1803	zyd_write32_m(sc, ZYD_MAC_SNIFFER, 0x00000000);
1804	zyd_write32_m(sc, ZYD_MAC_RXFILTER, 0x00000000);
1805	zyd_write32_m(sc, ZYD_MAC_GHTBL, 0x00000000);
1806	zyd_write32_m(sc, ZYD_MAC_GHTBH, 0x80000000);
1807	zyd_write32_m(sc, ZYD_MAC_MISC, 0x000000a4);
1808	zyd_write32_m(sc, ZYD_CR_ADDA_PWR_DWN, 0x0000007f);
1809	zyd_write32_m(sc, ZYD_MAC_BCNCFG, 0x00f00401);
1810	zyd_write32_m(sc, ZYD_MAC_PHY_DELAY2, 0x00000000);
1811	zyd_write32_m(sc, ZYD_MAC_ACK_EXT, 0x00000080);
1812	zyd_write32_m(sc, ZYD_CR_ADDA_PWR_DWN, 0x00000000);
1813	zyd_write32_m(sc, ZYD_MAC_SIFS_ACK_TIME, 0x00000100);
1814	zyd_write32_m(sc, ZYD_CR_RX_PE_DELAY, 0x00000070);
1815	zyd_write32_m(sc, ZYD_CR_PS_CTRL, 0x10000000);
1816	zyd_write32_m(sc, ZYD_MAC_RTSCTSRATE, 0x02030203);
1817	zyd_write32_m(sc, ZYD_MAC_AFTER_PNP, 1);
1818	zyd_write32_m(sc, ZYD_MAC_BACKOFF_PROTECT, 0x00000114);
1819	zyd_write32_m(sc, ZYD_MAC_DIFS_EIFS_SIFS, 0x0a47c032);
1820	zyd_write32_m(sc, ZYD_MAC_CAM_MODE, 0x3);
1821
1822	if (sc->sc_macrev == ZYD_ZD1211) {
1823		zyd_write32_m(sc, ZYD_MAC_RETRY, 0x00000002);
1824		zyd_write32_m(sc, ZYD_MAC_RX_THRESHOLD, 0x000c0640);
1825	} else {
1826		zyd_write32_m(sc, ZYD_MACB_MAX_RETRY, 0x02020202);
1827		zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL4, 0x007f003f);
1828		zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL3, 0x007f003f);
1829		zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL2, 0x003f001f);
1830		zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL1, 0x001f000f);
1831		zyd_write32_m(sc, ZYD_MACB_AIFS_CTL1, 0x00280028);
1832		zyd_write32_m(sc, ZYD_MACB_AIFS_CTL2, 0x008C003C);
1833		zyd_write32_m(sc, ZYD_MACB_TXOP, 0x01800824);
1834		zyd_write32_m(sc, ZYD_MAC_RX_THRESHOLD, 0x000c0eff);
1835	}
1836
1837	/* init beacon interval to 100ms */
1838	if ((error = zyd_set_beacon_interval(sc, 100)) != 0)
1839		goto fail;
1840
1841	if ((error = zyd_rf_attach(sc, sc->sc_rfrev)) != 0) {
1842		device_printf(sc->sc_dev, "could not attach RF, rev 0x%x\n",
1843		    sc->sc_rfrev);
1844		goto fail;
1845	}
1846
1847	/* RF chip init */
1848	error = zyd_lock_phy(sc);
1849	if (error != 0)
1850		goto fail;
1851	error = (*rf->init)(rf);
1852	if (error != 0) {
1853		device_printf(sc->sc_dev,
1854		    "radio initialization failed, error %d\n", error);
1855		goto fail;
1856	}
1857	error = zyd_unlock_phy(sc);
1858	if (error != 0)
1859		goto fail;
1860
1861	if ((error = zyd_read_eeprom(sc)) != 0) {
1862		device_printf(sc->sc_dev, "could not read EEPROM\n");
1863		goto fail;
1864	}
1865
1866fail:	return (error);
1867}
1868
1869static int
1870zyd_read_pod(struct zyd_softc *sc)
1871{
1872	int error;
1873	uint32_t tmp;
1874
1875	zyd_read32_m(sc, ZYD_EEPROM_POD, &tmp);
1876	sc->sc_rfrev     = tmp & 0x0f;
1877	sc->sc_ledtype   = (tmp >>  4) & 0x01;
1878	sc->sc_al2230s   = (tmp >>  7) & 0x01;
1879	sc->sc_cckgain   = (tmp >>  8) & 0x01;
1880	sc->sc_fix_cr157 = (tmp >> 13) & 0x01;
1881	sc->sc_parev     = (tmp >> 16) & 0x0f;
1882	sc->sc_bandedge6 = (tmp >> 21) & 0x01;
1883	sc->sc_newphy    = (tmp >> 31) & 0x01;
1884	sc->sc_txled     = ((tmp & (1 << 24)) && (tmp & (1 << 29))) ? 0 : 1;
1885fail:
1886	return (error);
1887}
1888
1889static int
1890zyd_read_eeprom(struct zyd_softc *sc)
1891{
1892	uint16_t val;
1893	int error, i;
1894
1895	/* read Tx power calibration tables */
1896	for (i = 0; i < 7; i++) {
1897		zyd_read16_m(sc, ZYD_EEPROM_PWR_CAL + i, &val);
1898		sc->sc_pwrcal[i * 2] = val >> 8;
1899		sc->sc_pwrcal[i * 2 + 1] = val & 0xff;
1900		zyd_read16_m(sc, ZYD_EEPROM_PWR_INT + i, &val);
1901		sc->sc_pwrint[i * 2] = val >> 8;
1902		sc->sc_pwrint[i * 2 + 1] = val & 0xff;
1903		zyd_read16_m(sc, ZYD_EEPROM_36M_CAL + i, &val);
1904		sc->sc_ofdm36_cal[i * 2] = val >> 8;
1905		sc->sc_ofdm36_cal[i * 2 + 1] = val & 0xff;
1906		zyd_read16_m(sc, ZYD_EEPROM_48M_CAL + i, &val);
1907		sc->sc_ofdm48_cal[i * 2] = val >> 8;
1908		sc->sc_ofdm48_cal[i * 2 + 1] = val & 0xff;
1909		zyd_read16_m(sc, ZYD_EEPROM_54M_CAL + i, &val);
1910		sc->sc_ofdm54_cal[i * 2] = val >> 8;
1911		sc->sc_ofdm54_cal[i * 2 + 1] = val & 0xff;
1912	}
1913fail:
1914	return (error);
1915}
1916
1917static int
1918zyd_get_macaddr(struct zyd_softc *sc)
1919{
1920	struct usb_device_request req;
1921	usb_error_t error;
1922
1923	req.bmRequestType = UT_READ_VENDOR_DEVICE;
1924	req.bRequest = ZYD_READFWDATAREQ;
1925	USETW(req.wValue, ZYD_EEPROM_MAC_ADDR_P1);
1926	USETW(req.wIndex, 0);
1927	USETW(req.wLength, IEEE80211_ADDR_LEN);
1928
1929	error = zyd_do_request(sc, &req, sc->sc_bssid);
1930	if (error != 0) {
1931		device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1932		    usbd_errstr(error));
1933	}
1934
1935	return (error);
1936}
1937
1938static int
1939zyd_set_macaddr(struct zyd_softc *sc, const uint8_t *addr)
1940{
1941	int error;
1942	uint32_t tmp;
1943
1944	tmp = addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0];
1945	zyd_write32_m(sc, ZYD_MAC_MACADRL, tmp);
1946	tmp = addr[5] << 8 | addr[4];
1947	zyd_write32_m(sc, ZYD_MAC_MACADRH, tmp);
1948fail:
1949	return (error);
1950}
1951
1952static int
1953zyd_set_bssid(struct zyd_softc *sc, const uint8_t *addr)
1954{
1955	int error;
1956	uint32_t tmp;
1957
1958	tmp = addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0];
1959	zyd_write32_m(sc, ZYD_MAC_BSSADRL, tmp);
1960	tmp = addr[5] << 8 | addr[4];
1961	zyd_write32_m(sc, ZYD_MAC_BSSADRH, tmp);
1962fail:
1963	return (error);
1964}
1965
1966static int
1967zyd_switch_radio(struct zyd_softc *sc, int on)
1968{
1969	struct zyd_rf *rf = &sc->sc_rf;
1970	int error;
1971
1972	error = zyd_lock_phy(sc);
1973	if (error != 0)
1974		goto fail;
1975	error = (*rf->switch_radio)(rf, on);
1976	if (error != 0)
1977		goto fail;
1978	error = zyd_unlock_phy(sc);
1979fail:
1980	return (error);
1981}
1982
1983static int
1984zyd_set_led(struct zyd_softc *sc, int which, int on)
1985{
1986	int error;
1987	uint32_t tmp;
1988
1989	zyd_read32_m(sc, ZYD_MAC_TX_PE_CONTROL, &tmp);
1990	tmp &= ~which;
1991	if (on)
1992		tmp |= which;
1993	zyd_write32_m(sc, ZYD_MAC_TX_PE_CONTROL, tmp);
1994fail:
1995	return (error);
1996}
1997
1998static void
1999zyd_set_multi(struct zyd_softc *sc)
2000{
2001	int error;
2002	struct ifnet *ifp = sc->sc_ifp;
2003	struct ieee80211com *ic = ifp->if_l2com;
2004	struct ifmultiaddr *ifma;
2005	uint32_t low, high;
2006	uint8_t v;
2007
2008	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2009		return;
2010
2011	low = 0x00000000;
2012	high = 0x80000000;
2013
2014	if (ic->ic_opmode == IEEE80211_M_MONITOR ||
2015	    (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC))) {
2016		low = 0xffffffff;
2017		high = 0xffffffff;
2018	} else {
2019		if_maddr_rlock(ifp);
2020		TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
2021			if (ifma->ifma_addr->sa_family != AF_LINK)
2022				continue;
2023			v = ((uint8_t *)LLADDR((struct sockaddr_dl *)
2024			    ifma->ifma_addr))[5] >> 2;
2025			if (v < 32)
2026				low |= 1 << v;
2027			else
2028				high |= 1 << (v - 32);
2029		}
2030		if_maddr_runlock(ifp);
2031	}
2032
2033	/* reprogram multicast global hash table */
2034	zyd_write32_m(sc, ZYD_MAC_GHTBL, low);
2035	zyd_write32_m(sc, ZYD_MAC_GHTBH, high);
2036fail:
2037	if (error != 0)
2038		device_printf(sc->sc_dev,
2039		    "could not set multicast hash table\n");
2040}
2041
2042static void
2043zyd_update_mcast(struct ifnet *ifp)
2044{
2045	struct zyd_softc *sc = ifp->if_softc;
2046
2047	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2048		return;
2049
2050	ZYD_LOCK(sc);
2051	zyd_set_multi(sc);
2052	ZYD_UNLOCK(sc);
2053}
2054
2055static int
2056zyd_set_rxfilter(struct zyd_softc *sc)
2057{
2058	struct ifnet *ifp = sc->sc_ifp;
2059	struct ieee80211com *ic = ifp->if_l2com;
2060	uint32_t rxfilter;
2061
2062	switch (ic->ic_opmode) {
2063	case IEEE80211_M_STA:
2064		rxfilter = ZYD_FILTER_BSS;
2065		break;
2066	case IEEE80211_M_IBSS:
2067	case IEEE80211_M_HOSTAP:
2068		rxfilter = ZYD_FILTER_HOSTAP;
2069		break;
2070	case IEEE80211_M_MONITOR:
2071		rxfilter = ZYD_FILTER_MONITOR;
2072		break;
2073	default:
2074		/* should not get there */
2075		return (EINVAL);
2076	}
2077	return zyd_write32(sc, ZYD_MAC_RXFILTER, rxfilter);
2078}
2079
2080static void
2081zyd_set_chan(struct zyd_softc *sc, struct ieee80211_channel *c)
2082{
2083	int error;
2084	struct ifnet *ifp = sc->sc_ifp;
2085	struct ieee80211com *ic = ifp->if_l2com;
2086	struct zyd_rf *rf = &sc->sc_rf;
2087	uint32_t tmp;
2088	int chan;
2089
2090	chan = ieee80211_chan2ieee(ic, c);
2091	if (chan == 0 || chan == IEEE80211_CHAN_ANY) {
2092		/* XXX should NEVER happen */
2093		device_printf(sc->sc_dev,
2094		    "%s: invalid channel %x\n", __func__, chan);
2095		return;
2096	}
2097
2098	error = zyd_lock_phy(sc);
2099	if (error != 0)
2100		goto fail;
2101
2102	error = (*rf->set_channel)(rf, chan);
2103	if (error != 0)
2104		goto fail;
2105
2106	if (rf->update_pwr) {
2107		/* update Tx power */
2108		zyd_write16_m(sc, ZYD_CR31, sc->sc_pwrint[chan - 1]);
2109
2110		if (sc->sc_macrev == ZYD_ZD1211B) {
2111			zyd_write16_m(sc, ZYD_CR67,
2112			    sc->sc_ofdm36_cal[chan - 1]);
2113			zyd_write16_m(sc, ZYD_CR66,
2114			    sc->sc_ofdm48_cal[chan - 1]);
2115			zyd_write16_m(sc, ZYD_CR65,
2116			    sc->sc_ofdm54_cal[chan - 1]);
2117			zyd_write16_m(sc, ZYD_CR68, sc->sc_pwrcal[chan - 1]);
2118			zyd_write16_m(sc, ZYD_CR69, 0x28);
2119			zyd_write16_m(sc, ZYD_CR69, 0x2a);
2120		}
2121	}
2122	if (sc->sc_cckgain) {
2123		/* set CCK baseband gain from EEPROM */
2124		if (zyd_read32(sc, ZYD_EEPROM_PHY_REG, &tmp) == 0)
2125			zyd_write16_m(sc, ZYD_CR47, tmp & 0xff);
2126	}
2127	if (sc->sc_bandedge6 && rf->bandedge6 != NULL) {
2128		error = (*rf->bandedge6)(rf, c);
2129		if (error != 0)
2130			goto fail;
2131	}
2132	zyd_write32_m(sc, ZYD_CR_CONFIG_PHILIPS, 0);
2133
2134	error = zyd_unlock_phy(sc);
2135	if (error != 0)
2136		goto fail;
2137
2138	sc->sc_rxtap.wr_chan_freq = sc->sc_txtap.wt_chan_freq =
2139	    htole16(c->ic_freq);
2140	sc->sc_rxtap.wr_chan_flags = sc->sc_txtap.wt_chan_flags =
2141	    htole16(c->ic_flags);
2142fail:
2143	return;
2144}
2145
2146static int
2147zyd_set_beacon_interval(struct zyd_softc *sc, int bintval)
2148{
2149	int error;
2150	uint32_t val;
2151
2152	zyd_read32_m(sc, ZYD_CR_ATIM_WND_PERIOD, &val);
2153	sc->sc_atim_wnd = val;
2154	zyd_read32_m(sc, ZYD_CR_PRE_TBTT, &val);
2155	sc->sc_pre_tbtt = val;
2156	sc->sc_bcn_int = bintval;
2157
2158	if (sc->sc_bcn_int <= 5)
2159		sc->sc_bcn_int = 5;
2160	if (sc->sc_pre_tbtt < 4 || sc->sc_pre_tbtt >= sc->sc_bcn_int)
2161		sc->sc_pre_tbtt = sc->sc_bcn_int - 1;
2162	if (sc->sc_atim_wnd >= sc->sc_pre_tbtt)
2163		sc->sc_atim_wnd = sc->sc_pre_tbtt - 1;
2164
2165	zyd_write32_m(sc, ZYD_CR_ATIM_WND_PERIOD, sc->sc_atim_wnd);
2166	zyd_write32_m(sc, ZYD_CR_PRE_TBTT, sc->sc_pre_tbtt);
2167	zyd_write32_m(sc, ZYD_CR_BCN_INTERVAL, sc->sc_bcn_int);
2168fail:
2169	return (error);
2170}
2171
2172static void
2173zyd_rx_data(struct usb_xfer *xfer, int offset, uint16_t len)
2174{
2175	struct zyd_softc *sc = usbd_xfer_softc(xfer);
2176	struct ifnet *ifp = sc->sc_ifp;
2177	struct ieee80211com *ic = ifp->if_l2com;
2178	struct zyd_plcphdr plcp;
2179	struct zyd_rx_stat stat;
2180	struct usb_page_cache *pc;
2181	struct mbuf *m;
2182	int rlen, rssi;
2183
2184	if (len < ZYD_MIN_FRAGSZ) {
2185		DPRINTF(sc, ZYD_DEBUG_RECV, "%s: frame too short (length=%d)\n",
2186		    device_get_nameunit(sc->sc_dev), len);
2187		ifp->if_ierrors++;
2188		return;
2189	}
2190	pc = usbd_xfer_get_frame(xfer, 0);
2191	usbd_copy_out(pc, offset, &plcp, sizeof(plcp));
2192	usbd_copy_out(pc, offset + len - sizeof(stat), &stat, sizeof(stat));
2193
2194	if (stat.flags & ZYD_RX_ERROR) {
2195		DPRINTF(sc, ZYD_DEBUG_RECV,
2196		    "%s: RX status indicated error (%x)\n",
2197		    device_get_nameunit(sc->sc_dev), stat.flags);
2198		ifp->if_ierrors++;
2199		return;
2200	}
2201
2202	/* compute actual frame length */
2203	rlen = len - sizeof(struct zyd_plcphdr) -
2204	    sizeof(struct zyd_rx_stat) - IEEE80211_CRC_LEN;
2205
2206	/* allocate a mbuf to store the frame */
2207	if (rlen > MCLBYTES) {
2208		DPRINTF(sc, ZYD_DEBUG_RECV, "%s: frame too long (length=%d)\n",
2209		    device_get_nameunit(sc->sc_dev), rlen);
2210		ifp->if_ierrors++;
2211		return;
2212	} else if (rlen > MHLEN)
2213		m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
2214	else
2215		m = m_gethdr(M_DONTWAIT, MT_DATA);
2216	if (m == NULL) {
2217		DPRINTF(sc, ZYD_DEBUG_RECV, "%s: could not allocate rx mbuf\n",
2218		    device_get_nameunit(sc->sc_dev));
2219		ifp->if_ierrors++;
2220		return;
2221	}
2222	m->m_pkthdr.rcvif = ifp;
2223	m->m_pkthdr.len = m->m_len = rlen;
2224	usbd_copy_out(pc, offset + sizeof(plcp), mtod(m, uint8_t *), rlen);
2225
2226	if (ieee80211_radiotap_active(ic)) {
2227		struct zyd_rx_radiotap_header *tap = &sc->sc_rxtap;
2228
2229		tap->wr_flags = 0;
2230		if (stat.flags & (ZYD_RX_BADCRC16 | ZYD_RX_BADCRC32))
2231			tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
2232		/* XXX toss, no way to express errors */
2233		if (stat.flags & ZYD_RX_DECRYPTERR)
2234			tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
2235		tap->wr_rate = ieee80211_plcp2rate(plcp.signal,
2236		    (stat.flags & ZYD_RX_OFDM) ?
2237			IEEE80211_T_OFDM : IEEE80211_T_CCK);
2238		tap->wr_antsignal = stat.rssi + -95;
2239		tap->wr_antnoise = -95;	/* XXX */
2240	}
2241	rssi = (stat.rssi > 63) ? 127 : 2 * stat.rssi;
2242
2243	sc->sc_rx_data[sc->sc_rx_count].rssi = rssi;
2244	sc->sc_rx_data[sc->sc_rx_count].m = m;
2245	sc->sc_rx_count++;
2246}
2247
2248static void
2249zyd_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
2250{
2251	struct zyd_softc *sc = usbd_xfer_softc(xfer);
2252	struct ifnet *ifp = sc->sc_ifp;
2253	struct ieee80211com *ic = ifp->if_l2com;
2254	struct ieee80211_node *ni;
2255	struct zyd_rx_desc desc;
2256	struct mbuf *m;
2257	struct usb_page_cache *pc;
2258	uint32_t offset;
2259	uint8_t rssi;
2260	int8_t nf;
2261	int i;
2262	int actlen;
2263
2264	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
2265
2266	sc->sc_rx_count = 0;
2267	switch (USB_GET_STATE(xfer)) {
2268	case USB_ST_TRANSFERRED:
2269		pc = usbd_xfer_get_frame(xfer, 0);
2270		usbd_copy_out(pc, actlen - sizeof(desc), &desc, sizeof(desc));
2271
2272		offset = 0;
2273		if (UGETW(desc.tag) == ZYD_TAG_MULTIFRAME) {
2274			DPRINTF(sc, ZYD_DEBUG_RECV,
2275			    "%s: received multi-frame transfer\n", __func__);
2276
2277			for (i = 0; i < ZYD_MAX_RXFRAMECNT; i++) {
2278				uint16_t len16 = UGETW(desc.len[i]);
2279
2280				if (len16 == 0 || len16 > actlen)
2281					break;
2282
2283				zyd_rx_data(xfer, offset, len16);
2284
2285				/* next frame is aligned on a 32-bit boundary */
2286				len16 = (len16 + 3) & ~3;
2287				offset += len16;
2288				if (len16 > actlen)
2289					break;
2290				actlen -= len16;
2291			}
2292		} else {
2293			DPRINTF(sc, ZYD_DEBUG_RECV,
2294			    "%s: received single-frame transfer\n", __func__);
2295
2296			zyd_rx_data(xfer, 0, actlen);
2297		}
2298		/* FALLTHROUGH */
2299	case USB_ST_SETUP:
2300tr_setup:
2301		usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
2302		usbd_transfer_submit(xfer);
2303
2304		/*
2305		 * At the end of a USB callback it is always safe to unlock
2306		 * the private mutex of a device! That is why we do the
2307		 * "ieee80211_input" here, and not some lines up!
2308		 */
2309		ZYD_UNLOCK(sc);
2310		for (i = 0; i < sc->sc_rx_count; i++) {
2311			rssi = sc->sc_rx_data[i].rssi;
2312			m = sc->sc_rx_data[i].m;
2313			sc->sc_rx_data[i].m = NULL;
2314
2315			nf = -95;	/* XXX */
2316
2317			ni = ieee80211_find_rxnode(ic,
2318			    mtod(m, struct ieee80211_frame_min *));
2319			if (ni != NULL) {
2320				(void)ieee80211_input(ni, m, rssi, nf);
2321				ieee80211_free_node(ni);
2322			} else
2323				(void)ieee80211_input_all(ic, m, rssi, nf);
2324		}
2325		ZYD_LOCK(sc);
2326		break;
2327
2328	default:			/* Error */
2329		DPRINTF(sc, ZYD_DEBUG_ANY, "frame error: %s\n", usbd_errstr(error));
2330
2331		if (error != USB_ERR_CANCELLED) {
2332			/* try to clear stall first */
2333			usbd_xfer_set_stall(xfer);
2334			goto tr_setup;
2335		}
2336		break;
2337	}
2338}
2339
2340static uint8_t
2341zyd_plcp_signal(struct zyd_softc *sc, int rate)
2342{
2343	switch (rate) {
2344	/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
2345	case 12:
2346		return (0xb);
2347	case 18:
2348		return (0xf);
2349	case 24:
2350		return (0xa);
2351	case 36:
2352		return (0xe);
2353	case 48:
2354		return (0x9);
2355	case 72:
2356		return (0xd);
2357	case 96:
2358		return (0x8);
2359	case 108:
2360		return (0xc);
2361	/* CCK rates (NB: not IEEE std, device-specific) */
2362	case 2:
2363		return (0x0);
2364	case 4:
2365		return (0x1);
2366	case 11:
2367		return (0x2);
2368	case 22:
2369		return (0x3);
2370	}
2371
2372	device_printf(sc->sc_dev, "unsupported rate %d\n", rate);
2373	return (0x0);
2374}
2375
2376static void
2377zyd_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
2378{
2379	struct zyd_softc *sc = usbd_xfer_softc(xfer);
2380	struct ifnet *ifp = sc->sc_ifp;
2381	struct ieee80211vap *vap;
2382	struct zyd_tx_data *data;
2383	struct mbuf *m;
2384	struct usb_page_cache *pc;
2385	int actlen;
2386
2387	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
2388
2389	switch (USB_GET_STATE(xfer)) {
2390	case USB_ST_TRANSFERRED:
2391		DPRINTF(sc, ZYD_DEBUG_ANY, "transfer complete, %u bytes\n",
2392		    actlen);
2393
2394		/* free resources */
2395		data = usbd_xfer_get_priv(xfer);
2396		zyd_tx_free(data, 0);
2397		usbd_xfer_set_priv(xfer, NULL);
2398
2399		ifp->if_opackets++;
2400		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2401
2402		/* FALLTHROUGH */
2403	case USB_ST_SETUP:
2404tr_setup:
2405		data = STAILQ_FIRST(&sc->tx_q);
2406		if (data) {
2407			STAILQ_REMOVE_HEAD(&sc->tx_q, next);
2408			m = data->m;
2409
2410			if (m->m_pkthdr.len > ZYD_MAX_TXBUFSZ) {
2411				DPRINTF(sc, ZYD_DEBUG_ANY, "data overflow, %u bytes\n",
2412				    m->m_pkthdr.len);
2413				m->m_pkthdr.len = ZYD_MAX_TXBUFSZ;
2414			}
2415			pc = usbd_xfer_get_frame(xfer, 0);
2416			usbd_copy_in(pc, 0, &data->desc, ZYD_TX_DESC_SIZE);
2417			usbd_m_copy_in(pc, ZYD_TX_DESC_SIZE, m, 0,
2418			    m->m_pkthdr.len);
2419
2420			vap = data->ni->ni_vap;
2421			if (ieee80211_radiotap_active_vap(vap)) {
2422				struct zyd_tx_radiotap_header *tap = &sc->sc_txtap;
2423
2424				tap->wt_flags = 0;
2425				tap->wt_rate = data->rate;
2426
2427				ieee80211_radiotap_tx(vap, m);
2428			}
2429
2430			usbd_xfer_set_frame_len(xfer, 0, ZYD_TX_DESC_SIZE + m->m_pkthdr.len);
2431			usbd_xfer_set_priv(xfer, data);
2432			usbd_transfer_submit(xfer);
2433		}
2434		break;
2435
2436	default:			/* Error */
2437		DPRINTF(sc, ZYD_DEBUG_ANY, "transfer error, %s\n",
2438		    usbd_errstr(error));
2439
2440		ifp->if_oerrors++;
2441		data = usbd_xfer_get_priv(xfer);
2442		usbd_xfer_set_priv(xfer, NULL);
2443		if (data != NULL)
2444			zyd_tx_free(data, error);
2445
2446		if (error == USB_ERR_STALLED) {
2447			/* try to clear stall first */
2448			usbd_xfer_set_stall(xfer);
2449			goto tr_setup;
2450		}
2451		if (error == USB_ERR_TIMEOUT)
2452			device_printf(sc->sc_dev, "device timeout\n");
2453		break;
2454	}
2455}
2456
2457static int
2458zyd_tx_start(struct zyd_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
2459{
2460	struct ieee80211vap *vap = ni->ni_vap;
2461	struct ieee80211com *ic = ni->ni_ic;
2462	struct zyd_tx_desc *desc;
2463	struct zyd_tx_data *data;
2464	struct ieee80211_frame *wh;
2465	const struct ieee80211_txparam *tp;
2466	struct ieee80211_key *k;
2467	int rate, totlen;
2468	static uint8_t ratediv[] = ZYD_TX_RATEDIV;
2469	uint8_t phy;
2470	uint16_t pktlen;
2471	uint32_t bits;
2472
2473	wh = mtod(m0, struct ieee80211_frame *);
2474	data = STAILQ_FIRST(&sc->tx_free);
2475	STAILQ_REMOVE_HEAD(&sc->tx_free, next);
2476	sc->tx_nfree--;
2477
2478	if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT ||
2479	    (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
2480		tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
2481		rate = tp->mgmtrate;
2482	} else {
2483		tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
2484		/* for data frames */
2485		if (IEEE80211_IS_MULTICAST(wh->i_addr1))
2486			rate = tp->mcastrate;
2487		else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
2488			rate = tp->ucastrate;
2489		else {
2490			(void) ieee80211_amrr_choose(ni, &ZYD_NODE(ni)->amn);
2491			rate = ni->ni_txrate;
2492		}
2493	}
2494
2495	if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
2496		k = ieee80211_crypto_encap(ni, m0);
2497		if (k == NULL) {
2498			m_freem(m0);
2499			return (ENOBUFS);
2500		}
2501		/* packet header may have moved, reset our local pointer */
2502		wh = mtod(m0, struct ieee80211_frame *);
2503	}
2504
2505	data->ni = ni;
2506	data->m = m0;
2507	data->rate = rate;
2508
2509	/* fill Tx descriptor */
2510	desc = &data->desc;
2511	phy = zyd_plcp_signal(sc, rate);
2512	desc->phy = phy;
2513	if (ZYD_RATE_IS_OFDM(rate)) {
2514		desc->phy |= ZYD_TX_PHY_OFDM;
2515		if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
2516			desc->phy |= ZYD_TX_PHY_5GHZ;
2517	} else if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
2518		desc->phy |= ZYD_TX_PHY_SHPREAMBLE;
2519
2520	totlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
2521	desc->len = htole16(totlen);
2522
2523	desc->flags = ZYD_TX_FLAG_BACKOFF;
2524	if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
2525		/* multicast frames are not sent at OFDM rates in 802.11b/g */
2526		if (totlen > vap->iv_rtsthreshold) {
2527			desc->flags |= ZYD_TX_FLAG_RTS;
2528		} else if (ZYD_RATE_IS_OFDM(rate) &&
2529		    (ic->ic_flags & IEEE80211_F_USEPROT)) {
2530			if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
2531				desc->flags |= ZYD_TX_FLAG_CTS_TO_SELF;
2532			else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
2533				desc->flags |= ZYD_TX_FLAG_RTS;
2534		}
2535	} else
2536		desc->flags |= ZYD_TX_FLAG_MULTICAST;
2537	if ((wh->i_fc[0] &
2538	    (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
2539	    (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_PS_POLL))
2540		desc->flags |= ZYD_TX_FLAG_TYPE(ZYD_TX_TYPE_PS_POLL);
2541
2542	/* actual transmit length (XXX why +10?) */
2543	pktlen = ZYD_TX_DESC_SIZE + 10;
2544	if (sc->sc_macrev == ZYD_ZD1211)
2545		pktlen += totlen;
2546	desc->pktlen = htole16(pktlen);
2547
2548	bits = (rate == 11) ? (totlen * 16) + 10 :
2549	    ((rate == 22) ? (totlen * 8) + 10 : (totlen * 8));
2550	desc->plcp_length = bits / ratediv[phy];
2551	desc->plcp_service = 0;
2552	if (rate == 22 && (bits % 11) > 0 && (bits % 11) <= 3)
2553		desc->plcp_service |= ZYD_PLCP_LENGEXT;
2554	desc->nextlen = 0;
2555
2556	if (ieee80211_radiotap_active_vap(vap)) {
2557		struct zyd_tx_radiotap_header *tap = &sc->sc_txtap;
2558
2559		tap->wt_flags = 0;
2560		tap->wt_rate = rate;
2561
2562		ieee80211_radiotap_tx(vap, m0);
2563	}
2564
2565	DPRINTF(sc, ZYD_DEBUG_XMIT,
2566	    "%s: sending data frame len=%zu rate=%u\n",
2567	    device_get_nameunit(sc->sc_dev), (size_t)m0->m_pkthdr.len,
2568		rate);
2569
2570	STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
2571	usbd_transfer_start(sc->sc_xfer[ZYD_BULK_WR]);
2572
2573	return (0);
2574}
2575
2576static void
2577zyd_start(struct ifnet *ifp)
2578{
2579	struct zyd_softc *sc = ifp->if_softc;
2580	struct ieee80211_node *ni;
2581	struct mbuf *m;
2582
2583	ZYD_LOCK(sc);
2584	for (;;) {
2585		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2586		if (m == NULL)
2587			break;
2588		if (sc->tx_nfree == 0) {
2589			IFQ_DRV_PREPEND(&ifp->if_snd, m);
2590			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2591			break;
2592		}
2593		ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
2594		if (zyd_tx_start(sc, m, ni) != 0) {
2595			ieee80211_free_node(ni);
2596			ifp->if_oerrors++;
2597			break;
2598		}
2599	}
2600	ZYD_UNLOCK(sc);
2601}
2602
2603static int
2604zyd_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2605	const struct ieee80211_bpf_params *params)
2606{
2607	struct ieee80211com *ic = ni->ni_ic;
2608	struct ifnet *ifp = ic->ic_ifp;
2609	struct zyd_softc *sc = ifp->if_softc;
2610
2611	ZYD_LOCK(sc);
2612	/* prevent management frames from being sent if we're not ready */
2613	if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2614		ZYD_UNLOCK(sc);
2615		m_freem(m);
2616		ieee80211_free_node(ni);
2617		return (ENETDOWN);
2618	}
2619	if (sc->tx_nfree == 0) {
2620		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2621		ZYD_UNLOCK(sc);
2622		m_freem(m);
2623		ieee80211_free_node(ni);
2624		return (ENOBUFS);		/* XXX */
2625	}
2626
2627	/*
2628	 * Legacy path; interpret frame contents to decide
2629	 * precisely how to send the frame.
2630	 * XXX raw path
2631	 */
2632	if (zyd_tx_start(sc, m, ni) != 0) {
2633		ZYD_UNLOCK(sc);
2634		ifp->if_oerrors++;
2635		ieee80211_free_node(ni);
2636		return (EIO);
2637	}
2638	ZYD_UNLOCK(sc);
2639	return (0);
2640}
2641
2642static int
2643zyd_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2644{
2645	struct zyd_softc *sc = ifp->if_softc;
2646	struct ieee80211com *ic = ifp->if_l2com;
2647	struct ifreq *ifr = (struct ifreq *) data;
2648	int error = 0, startall = 0;
2649
2650	switch (cmd) {
2651	case SIOCSIFFLAGS:
2652		ZYD_LOCK(sc);
2653		if (ifp->if_flags & IFF_UP) {
2654			if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2655				zyd_init_locked(sc);
2656				startall = 1;
2657			} else
2658				zyd_set_multi(sc);
2659		} else {
2660			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2661				zyd_stop(sc);
2662		}
2663		ZYD_UNLOCK(sc);
2664		if (startall)
2665			ieee80211_start_all(ic);
2666		break;
2667	case SIOCGIFMEDIA:
2668		error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2669		break;
2670	case SIOCGIFADDR:
2671		error = ether_ioctl(ifp, cmd, data);
2672		break;
2673	default:
2674		error = EINVAL;
2675		break;
2676	}
2677	return (error);
2678}
2679
2680static void
2681zyd_init_locked(struct zyd_softc *sc)
2682{
2683	struct ifnet *ifp = sc->sc_ifp;
2684	struct ieee80211com *ic = ifp->if_l2com;
2685	struct usb_config_descriptor *cd;
2686	int error;
2687	uint32_t val;
2688
2689	ZYD_LOCK_ASSERT(sc, MA_OWNED);
2690
2691	if (!(sc->sc_flags & ZYD_FLAG_INITONCE)) {
2692		error = zyd_loadfirmware(sc);
2693		if (error != 0) {
2694			device_printf(sc->sc_dev,
2695			    "could not load firmware (error=%d)\n", error);
2696			goto fail;
2697		}
2698
2699		/* reset device */
2700		cd = usbd_get_config_descriptor(sc->sc_udev);
2701		error = usbd_req_set_config(sc->sc_udev, &sc->sc_mtx,
2702		    cd->bConfigurationValue);
2703		if (error)
2704			device_printf(sc->sc_dev, "reset failed, continuing\n");
2705
2706		error = zyd_hw_init(sc);
2707		if (error) {
2708			device_printf(sc->sc_dev,
2709			    "hardware initialization failed\n");
2710			goto fail;
2711		}
2712
2713		device_printf(sc->sc_dev,
2714		    "HMAC ZD1211%s, FW %02x.%02x, RF %s S%x, PA%x LED %x "
2715		    "BE%x NP%x Gain%x F%x\n",
2716		    (sc->sc_macrev == ZYD_ZD1211) ? "": "B",
2717		    sc->sc_fwrev >> 8, sc->sc_fwrev & 0xff,
2718		    zyd_rf_name(sc->sc_rfrev), sc->sc_al2230s, sc->sc_parev,
2719		    sc->sc_ledtype, sc->sc_bandedge6, sc->sc_newphy,
2720		    sc->sc_cckgain, sc->sc_fix_cr157);
2721
2722		/* read regulatory domain (currently unused) */
2723		zyd_read32_m(sc, ZYD_EEPROM_SUBID, &val);
2724		sc->sc_regdomain = val >> 16;
2725		DPRINTF(sc, ZYD_DEBUG_INIT, "regulatory domain %x\n",
2726		    sc->sc_regdomain);
2727
2728		/* we'll do software WEP decryption for now */
2729		DPRINTF(sc, ZYD_DEBUG_INIT, "%s: setting encryption type\n",
2730		    __func__);
2731		zyd_write32_m(sc, ZYD_MAC_ENCRYPTION_TYPE, ZYD_ENC_SNIFFER);
2732
2733		sc->sc_flags |= ZYD_FLAG_INITONCE;
2734	}
2735
2736	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2737		zyd_stop(sc);
2738
2739	DPRINTF(sc, ZYD_DEBUG_INIT, "setting MAC address to %6D\n",
2740	    IF_LLADDR(ifp), ":");
2741	error = zyd_set_macaddr(sc, IF_LLADDR(ifp));
2742	if (error != 0)
2743		return;
2744
2745	/* set basic rates */
2746	if (ic->ic_curmode == IEEE80211_MODE_11B)
2747		zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0x0003);
2748	else if (ic->ic_curmode == IEEE80211_MODE_11A)
2749		zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0x1500);
2750	else	/* assumes 802.11b/g */
2751		zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0xff0f);
2752
2753	/* promiscuous mode */
2754	zyd_write32_m(sc, ZYD_MAC_SNIFFER, 0);
2755	/* multicast setup */
2756	zyd_set_multi(sc);
2757	/* set RX filter  */
2758	error = zyd_set_rxfilter(sc);
2759	if (error != 0)
2760		goto fail;
2761
2762	/* switch radio transmitter ON */
2763	error = zyd_switch_radio(sc, 1);
2764	if (error != 0)
2765		goto fail;
2766	/* set default BSS channel */
2767	zyd_set_chan(sc, ic->ic_curchan);
2768
2769	/*
2770	 * Allocate Tx and Rx xfer queues.
2771	 */
2772	zyd_setup_tx_list(sc);
2773
2774	/* enable interrupts */
2775	zyd_write32_m(sc, ZYD_CR_INTERRUPT, ZYD_HWINT_MASK);
2776
2777	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2778	ifp->if_drv_flags |= IFF_DRV_RUNNING;
2779	usbd_xfer_set_stall(sc->sc_xfer[ZYD_BULK_WR]);
2780	usbd_transfer_start(sc->sc_xfer[ZYD_BULK_RD]);
2781	usbd_transfer_start(sc->sc_xfer[ZYD_INTR_RD]);
2782
2783	return;
2784
2785fail:	zyd_stop(sc);
2786	return;
2787}
2788
2789static void
2790zyd_init(void *priv)
2791{
2792	struct zyd_softc *sc = priv;
2793	struct ifnet *ifp = sc->sc_ifp;
2794	struct ieee80211com *ic = ifp->if_l2com;
2795
2796	ZYD_LOCK(sc);
2797	zyd_init_locked(sc);
2798	ZYD_UNLOCK(sc);
2799
2800	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2801		ieee80211_start_all(ic);		/* start all vap's */
2802}
2803
2804static void
2805zyd_stop(struct zyd_softc *sc)
2806{
2807	struct ifnet *ifp = sc->sc_ifp;
2808	int error;
2809
2810	ZYD_LOCK_ASSERT(sc, MA_OWNED);
2811
2812	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2813
2814	/*
2815	 * Drain all the transfers, if not already drained:
2816	 */
2817	ZYD_UNLOCK(sc);
2818	usbd_transfer_drain(sc->sc_xfer[ZYD_BULK_WR]);
2819	usbd_transfer_drain(sc->sc_xfer[ZYD_BULK_RD]);
2820	ZYD_LOCK(sc);
2821
2822	zyd_unsetup_tx_list(sc);
2823
2824	/* Stop now if the device was never set up */
2825	if (!(sc->sc_flags & ZYD_FLAG_INITONCE))
2826		return;
2827
2828	/* switch radio transmitter OFF */
2829	error = zyd_switch_radio(sc, 0);
2830	if (error != 0)
2831		goto fail;
2832	/* disable Rx */
2833	zyd_write32_m(sc, ZYD_MAC_RXFILTER, 0);
2834	/* disable interrupts */
2835	zyd_write32_m(sc, ZYD_CR_INTERRUPT, 0);
2836
2837fail:
2838	return;
2839}
2840
2841static int
2842zyd_loadfirmware(struct zyd_softc *sc)
2843{
2844	struct usb_device_request req;
2845	size_t size;
2846	u_char *fw;
2847	uint8_t stat;
2848	uint16_t addr;
2849
2850	if (sc->sc_flags & ZYD_FLAG_FWLOADED)
2851		return (0);
2852
2853	if (sc->sc_macrev == ZYD_ZD1211) {
2854		fw = (u_char *)zd1211_firmware;
2855		size = sizeof(zd1211_firmware);
2856	} else {
2857		fw = (u_char *)zd1211b_firmware;
2858		size = sizeof(zd1211b_firmware);
2859	}
2860
2861	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2862	req.bRequest = ZYD_DOWNLOADREQ;
2863	USETW(req.wIndex, 0);
2864
2865	addr = ZYD_FIRMWARE_START_ADDR;
2866	while (size > 0) {
2867		/*
2868		 * When the transfer size is 4096 bytes, it is not
2869		 * likely to be able to transfer it.
2870		 * The cause is port or machine or chip?
2871		 */
2872		const int mlen = min(size, 64);
2873
2874		DPRINTF(sc, ZYD_DEBUG_FW,
2875		    "loading firmware block: len=%d, addr=0x%x\n", mlen, addr);
2876
2877		USETW(req.wValue, addr);
2878		USETW(req.wLength, mlen);
2879		if (zyd_do_request(sc, &req, fw) != 0)
2880			return (EIO);
2881
2882		addr += mlen / 2;
2883		fw   += mlen;
2884		size -= mlen;
2885	}
2886
2887	/* check whether the upload succeeded */
2888	req.bmRequestType = UT_READ_VENDOR_DEVICE;
2889	req.bRequest = ZYD_DOWNLOADSTS;
2890	USETW(req.wValue, 0);
2891	USETW(req.wIndex, 0);
2892	USETW(req.wLength, sizeof(stat));
2893	if (zyd_do_request(sc, &req, &stat) != 0)
2894		return (EIO);
2895
2896	sc->sc_flags |= ZYD_FLAG_FWLOADED;
2897
2898	return (stat & 0x80) ? (EIO) : (0);
2899}
2900
2901static void
2902zyd_newassoc(struct ieee80211_node *ni, int isnew)
2903{
2904	struct ieee80211vap *vap = ni->ni_vap;
2905
2906	ieee80211_amrr_node_init(&ZYD_VAP(vap)->amrr, &ZYD_NODE(ni)->amn, ni);
2907}
2908
2909static void
2910zyd_scan_start(struct ieee80211com *ic)
2911{
2912	struct ifnet *ifp = ic->ic_ifp;
2913	struct zyd_softc *sc = ifp->if_softc;
2914
2915	ZYD_LOCK(sc);
2916	/* want broadcast address while scanning */
2917	zyd_set_bssid(sc, ifp->if_broadcastaddr);
2918	ZYD_UNLOCK(sc);
2919}
2920
2921static void
2922zyd_scan_end(struct ieee80211com *ic)
2923{
2924	struct zyd_softc *sc = ic->ic_ifp->if_softc;
2925
2926	ZYD_LOCK(sc);
2927	/* restore previous bssid */
2928	zyd_set_bssid(sc, sc->sc_bssid);
2929	ZYD_UNLOCK(sc);
2930}
2931
2932static void
2933zyd_set_channel(struct ieee80211com *ic)
2934{
2935	struct zyd_softc *sc = ic->ic_ifp->if_softc;
2936
2937	ZYD_LOCK(sc);
2938	zyd_set_chan(sc, ic->ic_curchan);
2939	ZYD_UNLOCK(sc);
2940}
2941
2942static device_method_t zyd_methods[] = {
2943        /* Device interface */
2944        DEVMETHOD(device_probe, zyd_match),
2945        DEVMETHOD(device_attach, zyd_attach),
2946        DEVMETHOD(device_detach, zyd_detach),
2947
2948	{ 0, 0 }
2949};
2950
2951static driver_t zyd_driver = {
2952        "zyd",
2953        zyd_methods,
2954        sizeof(struct zyd_softc)
2955};
2956
2957static devclass_t zyd_devclass;
2958
2959DRIVER_MODULE(zyd, uhub, zyd_driver, zyd_devclass, NULL, 0);
2960MODULE_DEPEND(zyd, usb, 1, 1, 1);
2961MODULE_DEPEND(zyd, wlan, 1, 1, 1);
2962MODULE_DEPEND(zyd, wlan_amrr, 1, 1, 1);
2963