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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 };
55
56
57 /* Wireless Adapter WUSB Channel Time types ([WUSB] table 8-52) */
58 enum {
59         WUSB_TIME_ADJ   = 0,
60         WUSB_TIME_BPST  = 1,
61         WUSB_TIME_WUSB  = 2,
62 };
63
64 enum {
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) */
71 enum {
72         WA_STATUS_ENABLED = 0x01,
73         WA_STATUS_RESETTING = 0x02
74 };
75
76 enum 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  */
88 struct 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  */
117 enum 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  */
131 struct 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  */
145 struct 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 */
153 enum 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 */
162 struct 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
171 struct wa_xfer_ctl {
172         struct wa_xfer_hdr hdr;
173         u8 bmAttribute;
174         __le16 wReserved;
175         struct usb_ctrlrequest baSetupData;
176 } __attribute__((packed));
177
178 struct wa_xfer_bi {
179         struct wa_xfer_hdr hdr;
180         u8 bReserved;
181         __le16 wReserved;
182 } __attribute__((packed));
183
184 struct 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 */
193 struct 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  */
204 struct 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 */
211 enum {
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 */
228 struct 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  */
247 struct 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  */
264 struct 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 */