include/linux/usb/wusb-wa.h

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