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-rw-r--r--include/linux/usb/wusb-wa.h271
-rw-r--r--include/linux/usb/wusb.h376
2 files changed, 647 insertions, 0 deletions
diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h
new file mode 100644
index 000000000000..a102561e7026
--- /dev/null
+++ b/include/linux/usb/wusb-wa.h
@@ -0,0 +1,271 @@
1/*
2 * Wireless USB Wire Adapter constants and structures.
3 *
4 * Copyright (C) 2005-2006 Intel Corporation.
5 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 * 02110-1301, USA.
20 *
21 *
22 * FIXME: docs
23 * FIXME: organize properly, group logically
24 *
25 * All the event structures are defined in uwb/spec.h, as they are
26 * common to the WHCI and WUSB radio control interfaces.
27 *
28 * References:
29 * [WUSB] Wireless Universal Serial Bus Specification, revision 1.0, ch8
30 */
31#ifndef __LINUX_USB_WUSB_WA_H
32#define __LINUX_USB_WUSB_WA_H
33
34/**
35 * Radio Command Request for the Radio Control Interface
36 *
37 * Radio Control Interface command and event codes are the same as
38 * WHCI, and listed in include/linux/uwb.h:UWB_RC_{CMD,EVT}_*
39 */
40enum {
41 WA_EXEC_RC_CMD = 40, /* Radio Control command Request */
42};
43
44/* Wireless Adapter Requests ([WUSB] table 8-51) */
45enum {
46 WUSB_REQ_ADD_MMC_IE = 20,
47 WUSB_REQ_REMOVE_MMC_IE = 21,
48 WUSB_REQ_SET_NUM_DNTS = 22,
49 WUSB_REQ_SET_CLUSTER_ID = 23,
50 WUSB_REQ_SET_DEV_INFO = 24,
51 WUSB_REQ_GET_TIME = 25,
52 WUSB_REQ_SET_STREAM_IDX = 26,
53 WUSB_REQ_SET_WUSB_MAS = 27,
54};
55
56
57/* Wireless Adapter WUSB Channel Time types ([WUSB] table 8-52) */
58enum {
59 WUSB_TIME_ADJ = 0,
60 WUSB_TIME_BPST = 1,
61 WUSB_TIME_WUSB = 2,
62};
63
64enum {
65 WA_ENABLE = 0x01,
66 WA_RESET = 0x02,
67 RPIPE_PAUSE = 0x1,
68};
69
70/* Responses from Get Status request ([WUSB] section 8.3.1.6) */
71enum {
72 WA_STATUS_ENABLED = 0x01,
73 WA_STATUS_RESETTING = 0x02
74};
75
76enum rpipe_crs {
77 RPIPE_CRS_CTL = 0x01,
78 RPIPE_CRS_ISO = 0x02,
79 RPIPE_CRS_BULK = 0x04,
80 RPIPE_CRS_INTR = 0x08
81};
82
83/**
84 * RPipe descriptor ([WUSB] section 8.5.2.11)
85 *
86 * FIXME: explain rpipes
87 */
88struct usb_rpipe_descriptor {
89 u8 bLength;
90 u8 bDescriptorType;
91 __le16 wRPipeIndex;
92 __le16 wRequests;
93 __le16 wBlocks; /* rw if 0 */
94 __le16 wMaxPacketSize; /* rw? */
95 u8 bHSHubAddress; /* reserved: 0 */
96 u8 bHSHubPort; /* ??? FIXME ??? */
97 u8 bSpeed; /* rw: xfer rate 'enum uwb_phy_rate' */
98 u8 bDeviceAddress; /* rw: Target device address */
99 u8 bEndpointAddress; /* rw: Target EP address */
100 u8 bDataSequence; /* ro: Current Data sequence */
101 __le32 dwCurrentWindow; /* ro */
102 u8 bMaxDataSequence; /* ro?: max supported seq */
103 u8 bInterval; /* rw: */
104 u8 bOverTheAirInterval; /* rw: */
105 u8 bmAttribute; /* ro? */
106 u8 bmCharacteristics; /* ro? enum rpipe_attr, supported xsactions */
107 u8 bmRetryOptions; /* rw? */
108 __le16 wNumTransactionErrors; /* rw */
109} __attribute__ ((packed));
110
111/**
112 * Wire Adapter Notification types ([WUSB] sections 8.4.5 & 8.5.4)
113 *
114 * These are the notifications coming on the notification endpoint of
115 * an HWA and a DWA.
116 */
117enum wa_notif_type {
118 DWA_NOTIF_RWAKE = 0x91,
119 DWA_NOTIF_PORTSTATUS = 0x92,
120 WA_NOTIF_TRANSFER = 0x93,
121 HWA_NOTIF_BPST_ADJ = 0x94,
122 HWA_NOTIF_DN = 0x95,
123};
124
125/**
126 * Wire Adapter notification header
127 *
128 * Notifications coming from a wire adapter use a common header
129 * defined in [WUSB] sections 8.4.5 & 8.5.4.
130 */
131struct wa_notif_hdr {
132 u8 bLength;
133 u8 bNotifyType; /* enum wa_notif_type */
134} __attribute__((packed));
135
136/**
137 * HWA DN Received notification [(WUSB] section 8.5.4.2)
138 *
139 * The DNData is specified in WUSB1.0[7.6]. For each device
140 * notification we received, we just need to dispatch it.
141 *
142 * @dndata: this is really an array of notifications, but all start
143 * with the same header.
144 */
145struct hwa_notif_dn {
146 struct wa_notif_hdr hdr;
147 u8 bSourceDeviceAddr; /* from errata 2005/07 */
148 u8 bmAttributes;
149 struct wusb_dn_hdr dndata[];
150} __attribute__((packed));
151
152/* [WUSB] section 8.3.3 */
153enum wa_xfer_type {
154 WA_XFER_TYPE_CTL = 0x80,
155 WA_XFER_TYPE_BI = 0x81, /* bulk/interrupt */
156 WA_XFER_TYPE_ISO = 0x82,
157 WA_XFER_RESULT = 0x83,
158 WA_XFER_ABORT = 0x84,
159};
160
161/* [WUSB] section 8.3.3 */
162struct wa_xfer_hdr {
163 u8 bLength; /* 0x18 */
164 u8 bRequestType; /* 0x80 WA_REQUEST_TYPE_CTL */
165 __le16 wRPipe; /* RPipe index */
166 __le32 dwTransferID; /* Host-assigned ID */
167 __le32 dwTransferLength; /* Length of data to xfer */
168 u8 bTransferSegment;
169} __attribute__((packed));
170
171struct wa_xfer_ctl {
172 struct wa_xfer_hdr hdr;
173 u8 bmAttribute;
174 __le16 wReserved;
175 struct usb_ctrlrequest baSetupData;
176} __attribute__((packed));
177
178struct wa_xfer_bi {
179 struct wa_xfer_hdr hdr;
180 u8 bReserved;
181 __le16 wReserved;
182} __attribute__((packed));
183
184struct wa_xfer_hwaiso {
185 struct wa_xfer_hdr hdr;
186 u8 bReserved;
187 __le16 wPresentationTime;
188 __le32 dwNumOfPackets;
189 /* FIXME: u8 pktdata[]? */
190} __attribute__((packed));
191
192/* [WUSB] section 8.3.3.5 */
193struct wa_xfer_abort {
194 u8 bLength;
195 u8 bRequestType;
196 __le16 wRPipe; /* RPipe index */
197 __le32 dwTransferID; /* Host-assigned ID */
198} __attribute__((packed));
199
200/**
201 * WA Transfer Complete notification ([WUSB] section 8.3.3.3)
202 *
203 */
204struct wa_notif_xfer {
205 struct wa_notif_hdr hdr;
206 u8 bEndpoint;
207 u8 Reserved;
208} __attribute__((packed));
209
210/** Transfer result basic codes [WUSB] table 8-15 */
211enum {
212 WA_XFER_STATUS_SUCCESS,
213 WA_XFER_STATUS_HALTED,
214 WA_XFER_STATUS_DATA_BUFFER_ERROR,
215 WA_XFER_STATUS_BABBLE,
216 WA_XFER_RESERVED,
217 WA_XFER_STATUS_NOT_FOUND,
218 WA_XFER_STATUS_INSUFFICIENT_RESOURCE,
219 WA_XFER_STATUS_TRANSACTION_ERROR,
220 WA_XFER_STATUS_ABORTED,
221 WA_XFER_STATUS_RPIPE_NOT_READY,
222 WA_XFER_INVALID_FORMAT,
223 WA_XFER_UNEXPECTED_SEGMENT_NUMBER,
224 WA_XFER_STATUS_RPIPE_TYPE_MISMATCH,
225};
226
227/** [WUSB] section 8.3.3.4 */
228struct wa_xfer_result {
229 struct wa_notif_hdr hdr;
230 __le32 dwTransferID;
231 __le32 dwTransferLength;
232 u8 bTransferSegment;
233 u8 bTransferStatus;
234 __le32 dwNumOfPackets;
235} __attribute__((packed));
236
237/**
238 * Wire Adapter Class Descriptor ([WUSB] section 8.5.2.7).
239 *
240 * NOTE: u16 fields are read Little Endian from the hardware.
241 *
242 * @bNumPorts is the original max number of devices that the host can
243 * connect; we might chop this so the stack can handle
244 * it. In case you need to access it, use wusbhc->ports_max
245 * if it is a Wireless USB WA.
246 */
247struct usb_wa_descriptor {
248 u8 bLength;
249 u8 bDescriptorType;
250 u16 bcdWAVersion;
251 u8 bNumPorts; /* don't use!! */
252 u8 bmAttributes; /* Reserved == 0 */
253 u16 wNumRPipes;
254 u16 wRPipeMaxBlock;
255 u8 bRPipeBlockSize;
256 u8 bPwrOn2PwrGood;
257 u8 bNumMMCIEs;
258 u8 DeviceRemovable; /* FIXME: in DWA this is up to 16 bytes */
259} __attribute__((packed));
260
261/**
262 * HWA Device Information Buffer (WUSB1.0[T8.54])
263 */
264struct hwa_dev_info {
265 u8 bmDeviceAvailability[32]; /* FIXME: ignored for now */
266 u8 bDeviceAddress;
267 __le16 wPHYRates;
268 u8 bmDeviceAttribute;
269} __attribute__((packed));
270
271#endif /* #ifndef __LINUX_USB_WUSB_WA_H */
diff --git a/include/linux/usb/wusb.h b/include/linux/usb/wusb.h
new file mode 100644
index 000000000000..5f401b644ed5
--- /dev/null
+++ b/include/linux/usb/wusb.h
@@ -0,0 +1,376 @@
1/*
2 * Wireless USB Standard Definitions
3 * Event Size Tables
4 *
5 * Copyright (C) 2005-2006 Intel Corporation
6 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301, USA.
21 *
22 *
23 * FIXME: docs
24 * FIXME: organize properly, group logically
25 *
26 * All the event structures are defined in uwb/spec.h, as they are
27 * common to the WHCI and WUSB radio control interfaces.
28 */
29
30#ifndef __WUSB_H__
31#define __WUSB_H__
32
33#include <linux/types.h>
34#include <linux/kernel.h>
35#include <linux/uwb/spec.h>
36#include <linux/usb/ch9.h>
37#include <linux/param.h>
38
39/**
40 * WUSB Information Element header
41 *
42 * I don't know why, they decided to make it different to the MBOA MAC
43 * IE Header; beats me.
44 */
45struct wuie_hdr {
46 u8 bLength;
47 u8 bIEIdentifier;
48} __attribute__((packed));
49
50enum {
51 WUIE_ID_WCTA = 0x80,
52 WUIE_ID_CONNECTACK,
53 WUIE_ID_HOST_INFO,
54 WUIE_ID_CHANGE_ANNOUNCE,
55 WUIE_ID_DEVICE_DISCONNECT,
56 WUIE_ID_HOST_DISCONNECT,
57 WUIE_ID_KEEP_ALIVE = 0x89,
58 WUIE_ID_ISOCH_DISCARD,
59 WUIE_ID_RESET_DEVICE,
60};
61
62/**
63 * Maximum number of array elements in a WUSB IE.
64 *
65 * WUSB1.0[7.5 before table 7-38] says that in WUSB IEs that
66 * are "arrays" have to limited to 4 elements. So we define it
67 * like that to ease up and submit only the neeed size.
68 */
69#define WUIE_ELT_MAX 4
70
71/**
72 * Wrapper for the data that defines a CHID, a CDID or a CK
73 *
74 * WUSB defines that CHIDs, CDIDs and CKs are a 16 byte string of
75 * data. In order to avoid confusion and enforce types, we wrap it.
76 *
77 * Make it packed, as we use it in some hw defintions.
78 */
79struct wusb_ckhdid {
80 u8 data[16];
81} __attribute__((packed));
82
83const static
84struct wusb_ckhdid wusb_ckhdid_zero = { .data = { 0 } };
85
86#define WUSB_CKHDID_STRSIZE (3 * sizeof(struct wusb_ckhdid) + 1)
87
88/**
89 * WUSB IE: Host Information (WUSB1.0[7.5.2])
90 *
91 * Used to provide information about the host to the Wireless USB
92 * devices in range (CHID can be used as an ASCII string).
93 */
94struct wuie_host_info {
95 struct wuie_hdr hdr;
96 __le16 attributes;
97 struct wusb_ckhdid CHID;
98} __attribute__((packed));
99
100/**
101 * WUSB IE: Connect Ack (WUSB1.0[7.5.1])
102 *
103 * Used to acknowledge device connect requests. See note for
104 * WUIE_ELT_MAX.
105 */
106struct wuie_connect_ack {
107 struct wuie_hdr hdr;
108 struct {
109 struct wusb_ckhdid CDID;
110 u8 bDeviceAddress; /* 0 means unused */
111 u8 bReserved;
112 } blk[WUIE_ELT_MAX];
113} __attribute__((packed));
114
115/**
116 * WUSB IE Host Information Element, Connect Availability
117 *
118 * WUSB1.0[7.5.2], bmAttributes description
119 */
120enum {
121 WUIE_HI_CAP_RECONNECT = 0,
122 WUIE_HI_CAP_LIMITED,
123 WUIE_HI_CAP_RESERVED,
124 WUIE_HI_CAP_ALL,
125};
126
127/**
128 * WUSB IE: Channel Stop (WUSB1.0[7.5.8])
129 *
130 * Tells devices the host is going to stop sending MMCs and will dissapear.
131 */
132struct wuie_channel_stop {
133 struct wuie_hdr hdr;
134 u8 attributes;
135 u8 timestamp[3];
136} __attribute__((packed));
137
138/**
139 * WUSB IE: Keepalive (WUSB1.0[7.5.9])
140 *
141 * Ask device(s) to send keepalives.
142 */
143struct wuie_keep_alive {
144 struct wuie_hdr hdr;
145 u8 bDeviceAddress[WUIE_ELT_MAX];
146} __attribute__((packed));
147
148/**
149 * WUSB IE: Reset device (WUSB1.0[7.5.11])
150 *
151 * Tell device to reset; in all truth, we can fit 4 CDIDs, but we only
152 * use it for one at the time...
153 *
154 * In any case, this request is a wee bit silly: why don't they target
155 * by address??
156 */
157struct wuie_reset {
158 struct wuie_hdr hdr;
159 struct wusb_ckhdid CDID;
160} __attribute__((packed));
161
162/**
163 * WUSB IE: Disconnect device (WUSB1.0[7.5.11])
164 *
165 * Tell device to disconnect; we can fit 4 addresses, but we only use
166 * it for one at the time...
167 */
168struct wuie_disconnect {
169 struct wuie_hdr hdr;
170 u8 bDeviceAddress;
171 u8 padding;
172} __attribute__((packed));
173
174/**
175 * WUSB IE: Host disconnect ([WUSB] section 7.5.5)
176 *
177 * Tells all connected devices to disconnect.
178 */
179struct wuie_host_disconnect {
180 struct wuie_hdr hdr;
181} __attribute__((packed));
182
183/**
184 * WUSB Device Notification header (WUSB1.0[7.6])
185 */
186struct wusb_dn_hdr {
187 u8 bType;
188 u8 notifdata[];
189} __attribute__((packed));
190
191/** Device Notification codes (WUSB1.0[Table 7-54]) */
192enum WUSB_DN {
193 WUSB_DN_CONNECT = 0x01,
194 WUSB_DN_DISCONNECT = 0x02,
195 WUSB_DN_EPRDY = 0x03,
196 WUSB_DN_MASAVAILCHANGED = 0x04,
197 WUSB_DN_RWAKE = 0x05,
198 WUSB_DN_SLEEP = 0x06,
199 WUSB_DN_ALIVE = 0x07,
200};
201
202/** WUSB Device Notification Connect */
203struct wusb_dn_connect {
204 struct wusb_dn_hdr hdr;
205 __le16 attributes;
206 struct wusb_ckhdid CDID;
207} __attribute__((packed));
208
209static inline int wusb_dn_connect_prev_dev_addr(const struct wusb_dn_connect *dn)
210{
211 return le16_to_cpu(dn->attributes) & 0xff;
212}
213
214static inline int wusb_dn_connect_new_connection(const struct wusb_dn_connect *dn)
215{
216 return (le16_to_cpu(dn->attributes) >> 8) & 0x1;
217}
218
219static inline int wusb_dn_connect_beacon_behavior(const struct wusb_dn_connect *dn)
220{
221 return (le16_to_cpu(dn->attributes) >> 9) & 0x03;
222}
223
224/** Device is alive (aka: pong) (WUSB1.0[7.6.7]) */
225struct wusb_dn_alive {
226 struct wusb_dn_hdr hdr;
227} __attribute__((packed));
228
229/** Device is disconnecting (WUSB1.0[7.6.2]) */
230struct wusb_dn_disconnect {
231 struct wusb_dn_hdr hdr;
232} __attribute__((packed));
233
234/* General constants */
235enum {
236 WUSB_TRUST_TIMEOUT_MS = 4000, /* [WUSB] section 4.15.1 */
237};
238
239static inline size_t ckhdid_printf(char *pr_ckhdid, size_t size,
240 const struct wusb_ckhdid *ckhdid)
241{
242 return scnprintf(pr_ckhdid, size,
243 "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx "
244 "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx",
245 ckhdid->data[0], ckhdid->data[1],
246 ckhdid->data[2], ckhdid->data[3],
247 ckhdid->data[4], ckhdid->data[5],
248 ckhdid->data[6], ckhdid->data[7],
249 ckhdid->data[8], ckhdid->data[9],
250 ckhdid->data[10], ckhdid->data[11],
251 ckhdid->data[12], ckhdid->data[13],
252 ckhdid->data[14], ckhdid->data[15]);
253}
254
255/*
256 * WUSB Crypto stuff (WUSB1.0[6])
257 */
258
259extern const char *wusb_et_name(u8);
260
261/**
262 * WUSB key index WUSB1.0[7.3.2.4], for usage when setting keys for
263 * the host or the device.
264 */
265static inline u8 wusb_key_index(int index, int type, int originator)
266{
267 return (originator << 6) | (type << 4) | index;
268}
269
270#define WUSB_KEY_INDEX_TYPE_PTK 0 /* for HWA only */
271#define WUSB_KEY_INDEX_TYPE_ASSOC 1
272#define WUSB_KEY_INDEX_TYPE_GTK 2
273#define WUSB_KEY_INDEX_ORIGINATOR_HOST 0
274#define WUSB_KEY_INDEX_ORIGINATOR_DEVICE 1
275
276/* A CCM Nonce, defined in WUSB1.0[6.4.1] */
277struct aes_ccm_nonce {
278 u8 sfn[6]; /* Little Endian */
279 u8 tkid[3]; /* LE */
280 struct uwb_dev_addr dest_addr;
281 struct uwb_dev_addr src_addr;
282} __attribute__((packed));
283
284/* A CCM operation label, defined on WUSB1.0[6.5.x] */
285struct aes_ccm_label {
286 u8 data[14];
287} __attribute__((packed));
288
289/*
290 * Input to the key derivation sequence defined in
291 * WUSB1.0[6.5.1]. Rest of the data is in the CCM Nonce passed to the
292 * PRF function.
293 */
294struct wusb_keydvt_in {
295 u8 hnonce[16];
296 u8 dnonce[16];
297} __attribute__((packed));
298
299/*
300 * Output from the key derivation sequence defined in
301 * WUSB1.0[6.5.1].
302 */
303struct wusb_keydvt_out {
304 u8 kck[16];
305 u8 ptk[16];
306} __attribute__((packed));
307
308/* Pseudo Random Function WUSB1.0[6.5] */
309extern int wusb_crypto_init(void);
310extern void wusb_crypto_exit(void);
311extern ssize_t wusb_prf(void *out, size_t out_size,
312 const u8 key[16], const struct aes_ccm_nonce *_n,
313 const struct aes_ccm_label *a,
314 const void *b, size_t blen, size_t len);
315
316static inline int wusb_prf_64(void *out, size_t out_size, const u8 key[16],
317 const struct aes_ccm_nonce *n,
318 const struct aes_ccm_label *a,
319 const void *b, size_t blen)
320{
321 return wusb_prf(out, out_size, key, n, a, b, blen, 64);
322}
323
324static inline int wusb_prf_128(void *out, size_t out_size, const u8 key[16],
325 const struct aes_ccm_nonce *n,
326 const struct aes_ccm_label *a,
327 const void *b, size_t blen)
328{
329 return wusb_prf(out, out_size, key, n, a, b, blen, 128);
330}
331
332static inline int wusb_prf_256(void *out, size_t out_size, const u8 key[16],
333 const struct aes_ccm_nonce *n,
334 const struct aes_ccm_label *a,
335 const void *b, size_t blen)
336{
337 return wusb_prf(out, out_size, key, n, a, b, blen, 256);
338}
339
340/* Key derivation WUSB1.0[6.5.1] */
341static inline int wusb_key_derive(struct wusb_keydvt_out *keydvt_out,
342 const u8 key[16],
343 const struct aes_ccm_nonce *n,
344 const struct wusb_keydvt_in *keydvt_in)
345{
346 const struct aes_ccm_label a = { .data = "Pair-wise keys" };
347 return wusb_prf_256(keydvt_out, sizeof(*keydvt_out), key, n, &a,
348 keydvt_in, sizeof(*keydvt_in));
349}
350
351/*
352 * Out-of-band MIC Generation WUSB1.0[6.5.2]
353 *
354 * Compute the MIC over @key, @n and @hs and place it in @mic_out.
355 *
356 * @mic_out: Where to place the 8 byte MIC tag
357 * @key: KCK from the derivation process
358 * @n: CCM nonce, n->sfn == 0, TKID as established in the
359 * process.
360 * @hs: Handshake struct for phase 2 of the 4-way.
361 * hs->bStatus and hs->bReserved are zero.
362 * hs->bMessageNumber is 2 (WUSB1.0[7.3.2.5.2]
363 * hs->dest_addr is the device's USB address padded with 0
364 * hs->src_addr is the hosts's UWB device address
365 * hs->mic is ignored (as we compute that value).
366 */
367static inline int wusb_oob_mic(u8 mic_out[8], const u8 key[16],
368 const struct aes_ccm_nonce *n,
369 const struct usb_handshake *hs)
370{
371 const struct aes_ccm_label a = { .data = "out-of-bandMIC" };
372 return wusb_prf_64(mic_out, 8, key, n, &a,
373 hs, sizeof(*hs) - sizeof(hs->MIC));
374}
375
376#endif /* #ifndef __WUSB_H__ */
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