aboutsummaryrefslogtreecommitdiff
path: root/include/linux/usb/wusb-wa.h
blob: 4ff744e2b678a27f051649b86f1c8ee4eb8210d1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
/*
 * Wireless USB Wire Adapter constants and structures.
 *
 * Copyright (C) 2005-2006 Intel Corporation.
 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 *
 * FIXME: docs
 * FIXME: organize properly, group logically
 *
 * All the event structures are defined in uwb/spec.h, as they are
 * common to the WHCI and WUSB radio control interfaces.
 *
 * References:
 *   [WUSB] Wireless Universal Serial Bus Specification, revision 1.0, ch8
 */
#ifndef __LINUX_USB_WUSB_WA_H
#define __LINUX_USB_WUSB_WA_H

/**
 * Radio Command Request for the Radio Control Interface
 *
 * Radio Control Interface command and event codes are the same as
 * WHCI, and listed in include/linux/uwb.h:UWB_RC_{CMD,EVT}_*
 */
enum {
	WA_EXEC_RC_CMD = 40,	/* Radio Control command Request */
};

/* Wireless Adapter Requests ([WUSB] table 8-51) */
enum {
	WUSB_REQ_ADD_MMC_IE     = 20,
	WUSB_REQ_REMOVE_MMC_IE  = 21,
	WUSB_REQ_SET_NUM_DNTS   = 22,
	WUSB_REQ_SET_CLUSTER_ID = 23,
	WUSB_REQ_SET_DEV_INFO   = 24,
	WUSB_REQ_GET_TIME       = 25,
	WUSB_REQ_SET_STREAM_IDX = 26,
	WUSB_REQ_SET_WUSB_MAS   = 27,
	WUSB_REQ_CHAN_STOP      = 28,
};


/* Wireless Adapter WUSB Channel Time types ([WUSB] table 8-52) */
enum {
	WUSB_TIME_ADJ   = 0,
	WUSB_TIME_BPST  = 1,
	WUSB_TIME_WUSB  = 2,
};

enum {
	WA_ENABLE = 0x01,
	WA_RESET = 0x02,
	RPIPE_PAUSE = 0x1,
	RPIPE_STALL = 0x2,
};

/* Responses from Get Status request ([WUSB] section 8.3.1.6) */
enum {
	WA_STATUS_ENABLED = 0x01,
	WA_STATUS_RESETTING = 0x02
};

enum rpipe_crs {
	RPIPE_CRS_CTL = 0x01,
	RPIPE_CRS_ISO = 0x02,
	RPIPE_CRS_BULK = 0x04,
	RPIPE_CRS_INTR = 0x08
};

/**
 * RPipe descriptor ([WUSB] section 8.5.2.11)
 *
 * FIXME: explain rpipes
 */
struct usb_rpipe_descriptor {
	u8	bLength;
	u8	bDescriptorType;
	__le16  wRPipeIndex;
	__le16	wRequests;
	__le16	wBlocks;		/* rw if 0 */
	__le16	wMaxPacketSize;		/* rw */
	union {
		u8	dwa_bHSHubAddress;		/* rw: DWA. */
		u8	hwa_bMaxBurst;			/* rw: HWA. */
	};
	union {
		u8	dwa_bHSHubPort;		/*  rw: DWA. */
		u8	hwa_bDeviceInfoIndex;	/*  rw: HWA. */
	};
	u8	bSpeed;			/* rw: xfer rate 'enum uwb_phy_rate' */
	union {
		u8 dwa_bDeviceAddress;	/* rw: DWA Target device address. */
		u8 hwa_reserved;		/* rw: HWA. */
	};
	u8	bEndpointAddress;	/* rw: Target EP address */
	u8	bDataSequence;		/* ro: Current Data sequence */
	__le32	dwCurrentWindow;	/* ro */
	u8	bMaxDataSequence;	/* ro?: max supported seq */
	u8	bInterval;		/* rw:  */
	u8	bOverTheAirInterval;	/* rw:  */
	u8	bmAttribute;		/* ro?  */
	u8	bmCharacteristics;	/* ro? enum rpipe_attr, supported xsactions */
	u8	bmRetryOptions;		/* rw? */
	__le16	wNumTransactionErrors;	/* rw */
} __attribute__ ((packed));

/**
 * Wire Adapter Notification types ([WUSB] sections 8.4.5 & 8.5.4)
 *
 * These are the notifications coming on the notification endpoint of
 * an HWA and a DWA.
 */
enum wa_notif_type {
	DWA_NOTIF_RWAKE = 0x91,
	DWA_NOTIF_PORTSTATUS = 0x92,
	WA_NOTIF_TRANSFER = 0x93,
	HWA_NOTIF_BPST_ADJ = 0x94,
	HWA_NOTIF_DN = 0x95,
};

/**
 * Wire Adapter notification header
 *
 * Notifications coming from a wire adapter use a common header
 * defined in [WUSB] sections 8.4.5 & 8.5.4.
 */
struct wa_notif_hdr {
	u8 bLength;
	u8 bNotifyType;			/* enum wa_notif_type */
} __attribute__((packed));

/**
 * HWA DN Received notification [(WUSB] section 8.5.4.2)
 *
 * The DNData is specified in WUSB1.0[7.6]. For each device
 * notification we received, we just need to dispatch it.
 *
 * @dndata:  this is really an array of notifications, but all start
 *           with the same header.
 */
struct hwa_notif_dn {
	struct wa_notif_hdr hdr;
	u8 bSourceDeviceAddr;		/* from errata 2005/07 */
	u8 bmAttributes;
	struct wusb_dn_hdr dndata[];
} __attribute__((packed));

/* [WUSB] section 8.3.3 */
enum wa_xfer_type {
	WA_XFER_TYPE_CTL = 0x80,
	WA_XFER_TYPE_BI = 0x81,		/* bulk/interrupt */
	WA_XFER_TYPE_ISO = 0x82,
	WA_XFER_RESULT = 0x83,
	WA_XFER_ABORT = 0x84,
};

/* [WUSB] section 8.3.3 */
struct wa_xfer_hdr {
	u8 bLength;			/* 0x18 */
	u8 bRequestType;		/* 0x80 WA_REQUEST_TYPE_CTL */
	__le16 wRPipe;			/* RPipe index */
	__le32 dwTransferID;		/* Host-assigned ID */
	__le32 dwTransferLength;	/* Length of data to xfer */
	u8 bTransferSegment;
} __attribute__((packed));

struct wa_xfer_ctl {
	struct wa_xfer_hdr hdr;
	u8 bmAttribute;
	__le16 wReserved;
	struct usb_ctrlrequest baSetupData;
} __attribute__((packed));

struct wa_xfer_bi {
	struct wa_xfer_hdr hdr;
	u8 bReserved;
	__le16 wReserved;
} __attribute__((packed));

struct wa_xfer_hwaiso {
	struct wa_xfer_hdr hdr;
	u8 bReserved;
	__le16 wPresentationTime;
	__le32 dwNumOfPackets;
	/* FIXME: u8 pktdata[]? */
} __attribute__((packed));

/* [WUSB] section 8.3.3.5 */
struct wa_xfer_abort {
	u8 bLength;
	u8 bRequestType;
	__le16 wRPipe;			/* RPipe index */
	__le32 dwTransferID;		/* Host-assigned ID */
} __attribute__((packed));

/**
 * WA Transfer Complete notification ([WUSB] section 8.3.3.3)
 *
 */
struct wa_notif_xfer {
	struct wa_notif_hdr hdr;
	u8 bEndpoint;
	u8 Reserved;
} __attribute__((packed));

/** Transfer result basic codes [WUSB] table 8-15 */
enum {
	WA_XFER_STATUS_SUCCESS,
	WA_XFER_STATUS_HALTED,
	WA_XFER_STATUS_DATA_BUFFER_ERROR,
	WA_XFER_STATUS_BABBLE,
	WA_XFER_RESERVED,
	WA_XFER_STATUS_NOT_FOUND,
	WA_XFER_STATUS_INSUFFICIENT_RESOURCE,
	WA_XFER_STATUS_TRANSACTION_ERROR,
	WA_XFER_STATUS_ABORTED,
	WA_XFER_STATUS_RPIPE_NOT_READY,
	WA_XFER_INVALID_FORMAT,
	WA_XFER_UNEXPECTED_SEGMENT_NUMBER,
	WA_XFER_STATUS_RPIPE_TYPE_MISMATCH,
};

/** [WUSB] section 8.3.3.4 */
struct wa_xfer_result {
	struct wa_notif_hdr hdr;
	__le32 dwTransferID;
	__le32 dwTransferLength;
	u8     bTransferSegment;
	u8     bTransferStatus;
	__le32 dwNumOfPackets;
} __attribute__((packed));

/**
 * Wire Adapter Class Descriptor ([WUSB] section 8.5.2.7).
 *
 * NOTE: u16 fields are read Little Endian from the hardware.
 *
 * @bNumPorts is the original max number of devices that the host can
 *            connect; we might chop this so the stack can handle
 *            it. In case you need to access it, use wusbhc->ports_max
 *            if it is a Wireless USB WA.
 */
struct usb_wa_descriptor {
	u8	bLength;
	u8	bDescriptorType;
	u16	bcdWAVersion;
	u8	bNumPorts;		/* don't use!! */
	u8	bmAttributes;		/* Reserved == 0 */
	u16	wNumRPipes;
	u16	wRPipeMaxBlock;
	u8	bRPipeBlockSize;
	u8	bPwrOn2PwrGood;
	u8	bNumMMCIEs;
	u8	DeviceRemovable;	/* FIXME: in DWA this is up to 16 bytes */
} __attribute__((packed));

/**
 * HWA Device Information Buffer (WUSB1.0[T8.54])
 */
struct hwa_dev_info {
	u8	bmDeviceAvailability[32];       /* FIXME: ignored for now */
	u8	bDeviceAddress;
	__le16	wPHYRates;
	u8	bmDeviceAttribute;
} __attribute__((packed));

#endif /* #ifndef __LINUX_USB_WUSB_WA_H */