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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  */
40 enum {
41         WA_EXEC_RC_CMD = 40,    /* Radio Control command Request */
42 };
43
44 /* Wireless Adapter Requests ([WUSB] table 8-51) */
45 enum {
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         WUSB_REQ_CHAN_STOP      = 28,
55 };
56
57
58 /* Wireless Adapter WUSB Channel Time types ([WUSB] table 8-52) */
59 enum {
60         WUSB_TIME_ADJ   = 0,
61         WUSB_TIME_BPST  = 1,
62         WUSB_TIME_WUSB  = 2,
63 };
64
65 enum {
66         WA_ENABLE = 0x01,
67         WA_RESET = 0x02,
68         RPIPE_PAUSE = 0x1,
69         RPIPE_STALL = 0x2,
70 };
71
72 /* Responses from Get Status request ([WUSB] section 8.3.1.6) */
73 enum {
74         WA_STATUS_ENABLED = 0x01,
75         WA_STATUS_RESETTING = 0x02
76 };
77
78 enum rpipe_crs {
79         RPIPE_CRS_CTL = 0x01,
80         RPIPE_CRS_ISO = 0x02,
81         RPIPE_CRS_BULK = 0x04,
82         RPIPE_CRS_INTR = 0x08
83 };
84
85 /**
86  * RPipe descriptor ([WUSB] section 8.5.2.11)
87  *
88  * FIXME: explain rpipes
89  */
90 struct usb_rpipe_descriptor {
91         u8      bLength;
92         u8      bDescriptorType;
93         __le16  wRPipeIndex;
94         __le16  wRequests;
95         __le16  wBlocks;                /* rw if 0 */
96         __le16  wMaxPacketSize;         /* rw */
97         union {
98                 u8      dwa_bHSHubAddress;              /* rw: DWA. */
99                 u8      hwa_bMaxBurst;                  /* rw: HWA. */
100         };
101         union {
102                 u8      dwa_bHSHubPort;         /*  rw: DWA. */
103                 u8      hwa_bDeviceInfoIndex;   /*  rw: HWA. */
104         };
105         u8      bSpeed;                 /* rw: xfer rate 'enum uwb_phy_rate' */
106         union {
107                 u8 dwa_bDeviceAddress;  /* rw: DWA Target device address. */
108                 u8 hwa_reserved;                /* rw: HWA. */
109         };
110         u8      bEndpointAddress;       /* rw: Target EP address */
111         u8      bDataSequence;          /* ro: Current Data sequence */
112         __le32  dwCurrentWindow;        /* ro */
113         u8      bMaxDataSequence;       /* ro?: max supported seq */
114         u8      bInterval;              /* rw:  */
115         u8      bOverTheAirInterval;    /* rw:  */
116         u8      bmAttribute;            /* ro?  */
117         u8      bmCharacteristics;      /* ro? enum rpipe_attr, supported xsactions */
118         u8      bmRetryOptions;         /* rw? */
119         __le16  wNumTransactionErrors;  /* rw */
120 } __attribute__ ((packed));
121
122 /**
123  * Wire Adapter Notification types ([WUSB] sections 8.4.5 & 8.5.4)
124  *
125  * These are the notifications coming on the notification endpoint of
126  * an HWA and a DWA.
127  */
128 enum wa_notif_type {
129         DWA_NOTIF_RWAKE = 0x91,
130         DWA_NOTIF_PORTSTATUS = 0x92,
131         WA_NOTIF_TRANSFER = 0x93,
132         HWA_NOTIF_BPST_ADJ = 0x94,
133         HWA_NOTIF_DN = 0x95,
134 };
135
136 /**
137  * Wire Adapter notification header
138  *
139  * Notifications coming from a wire adapter use a common header
140  * defined in [WUSB] sections 8.4.5 & 8.5.4.
141  */
142 struct wa_notif_hdr {
143         u8 bLength;
144         u8 bNotifyType;                 /* enum wa_notif_type */
145 } __packed;
146
147 /**
148  * HWA DN Received notification [(WUSB] section 8.5.4.2)
149  *
150  * The DNData is specified in WUSB1.0[7.6]. For each device
151  * notification we received, we just need to dispatch it.
152  *
153  * @dndata:  this is really an array of notifications, but all start
154  *           with the same header.
155  */
156 struct hwa_notif_dn {
157         struct wa_notif_hdr hdr;
158         u8 bSourceDeviceAddr;           /* from errata 2005/07 */
159         u8 bmAttributes;
160         struct wusb_dn_hdr dndata[];
161 } __packed;
162
163 /* [WUSB] section 8.3.3 */
164 enum wa_xfer_type {
165         WA_XFER_TYPE_CTL = 0x80,
166         WA_XFER_TYPE_BI = 0x81,         /* bulk/interrupt */
167         WA_XFER_TYPE_ISO = 0x82,
168         WA_XFER_RESULT = 0x83,
169         WA_XFER_ABORT = 0x84,
170         WA_XFER_ISO_PACKET_INFO = 0xA0,
171         WA_XFER_ISO_PACKET_STATUS = 0xA1,
172 };
173
174 /* [WUSB] section 8.3.3 */
175 struct wa_xfer_hdr {
176         u8 bLength;                     /* 0x18 */
177         u8 bRequestType;                /* 0x80 WA_REQUEST_TYPE_CTL */
178         __le16 wRPipe;                  /* RPipe index */
179         __le32 dwTransferID;            /* Host-assigned ID */
180         __le32 dwTransferLength;        /* Length of data to xfer */
181         u8 bTransferSegment;
182 } __packed;
183
184 struct wa_xfer_ctl {
185         struct wa_xfer_hdr hdr;
186         u8 bmAttribute;
187         __le16 wReserved;
188         struct usb_ctrlrequest baSetupData;
189 } __packed;
190
191 struct wa_xfer_bi {
192         struct wa_xfer_hdr hdr;
193         u8 bReserved;
194         __le16 wReserved;
195 } __packed;
196
197 /* [WUSB] section 8.5.5 */
198 struct wa_xfer_hwaiso {
199         struct wa_xfer_hdr hdr;
200         u8 bReserved;
201         __le16 wPresentationTime;
202         __le32 dwNumOfPackets;
203 } __packed;
204
205 struct wa_xfer_packet_info_hwaiso {
206         __le16 wLength;
207         u8 bPacketType;
208         u8 bReserved;
209         __le16 PacketLength[0];
210 } __packed;
211
212 struct wa_xfer_packet_status_len_hwaiso {
213         __le16 PacketLength;
214         __le16 PacketStatus;
215 } __packed;
216
217 struct wa_xfer_packet_status_hwaiso {
218         __le16 wLength;
219         u8 bPacketType;
220         u8 bReserved;
221         struct wa_xfer_packet_status_len_hwaiso PacketStatus[0];
222 } __packed;
223
224 /* [WUSB] section 8.3.3.5 */
225 struct wa_xfer_abort {
226         u8 bLength;
227         u8 bRequestType;
228         __le16 wRPipe;                  /* RPipe index */
229         __le32 dwTransferID;            /* Host-assigned ID */
230 } __packed;
231
232 /**
233  * WA Transfer Complete notification ([WUSB] section 8.3.3.3)
234  *
235  */
236 struct wa_notif_xfer {
237         struct wa_notif_hdr hdr;
238         u8 bEndpoint;
239         u8 Reserved;
240 } __packed;
241
242 /** Transfer result basic codes [WUSB] table 8-15 */
243 enum {
244         WA_XFER_STATUS_SUCCESS,
245         WA_XFER_STATUS_HALTED,
246         WA_XFER_STATUS_DATA_BUFFER_ERROR,
247         WA_XFER_STATUS_BABBLE,
248         WA_XFER_RESERVED,
249         WA_XFER_STATUS_NOT_FOUND,
250         WA_XFER_STATUS_INSUFFICIENT_RESOURCE,
251         WA_XFER_STATUS_TRANSACTION_ERROR,
252         WA_XFER_STATUS_ABORTED,
253         WA_XFER_STATUS_RPIPE_NOT_READY,
254         WA_XFER_INVALID_FORMAT,
255         WA_XFER_UNEXPECTED_SEGMENT_NUMBER,
256         WA_XFER_STATUS_RPIPE_TYPE_MISMATCH,
257 };
258
259 /** [WUSB] section 8.3.3.4 */
260 struct wa_xfer_result {
261         struct wa_notif_hdr hdr;
262         __le32 dwTransferID;
263         __le32 dwTransferLength;
264         u8     bTransferSegment;
265         u8     bTransferStatus;
266         __le32 dwNumOfPackets;
267 } __packed;
268
269 /**
270  * Wire Adapter Class Descriptor ([WUSB] section 8.5.2.7).
271  *
272  * NOTE: u16 fields are read Little Endian from the hardware.
273  *
274  * @bNumPorts is the original max number of devices that the host can
275  *            connect; we might chop this so the stack can handle
276  *            it. In case you need to access it, use wusbhc->ports_max
277  *            if it is a Wireless USB WA.
278  */
279 struct usb_wa_descriptor {
280         u8      bLength;
281         u8      bDescriptorType;
282         __le16  bcdWAVersion;
283         u8      bNumPorts;              /* don't use!! */
284         u8      bmAttributes;           /* Reserved == 0 */
285         __le16  wNumRPipes;
286         __le16  wRPipeMaxBlock;
287         u8      bRPipeBlockSize;
288         u8      bPwrOn2PwrGood;
289         u8      bNumMMCIEs;
290         u8      DeviceRemovable;        /* FIXME: in DWA this is up to 16 bytes */
291 } __packed;
292
293 /**
294  * HWA Device Information Buffer (WUSB1.0[T8.54])
295  */
296 struct hwa_dev_info {
297         u8      bmDeviceAvailability[32];       /* FIXME: ignored for now */
298         u8      bDeviceAddress;
299         __le16  wPHYRates;
300         u8      bmDeviceAttribute;
301 } __packed;
302
303 #endif /* #ifndef __LINUX_USB_WUSB_WA_H */