drivers/usb/gadget/rndis.h

   1 /*
   2  * RNDIS        Definitions for Remote NDIS
   3  *
   4  * Authors:     Benedikt Spranger, Pengutronix
   5  *              Robert Schwebel, Pengutronix
   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
   9  *              version 2, as published by the Free Software Foundation.
  10  *
  11  *              This software was originally developed in conformance with
  12  *              Microsoft's Remote NDIS Specification License Agreement.
  13  */
  14
  15 #ifndef _USBGADGET_RNDIS_H
  16 #define _USBGADGET_RNDIS_H
  17
  18 #include "ndis.h"
  19
  20 /*
  21  * By default rndis_signal_disconnect does not send status message about
  22  * RNDIS disconnection to USB host (indicated as cable disconnected).
  23  * Define RNDIS_COMPLETE_SIGNAL_DISCONNECT to send it.
  24  * However, this will cause 1 sec delay on Ethernet device halt.
  25  * Usually you do not need to define it. Mostly usable for debugging.
  26  */
  27
  28 #define RNDIS_MAXIMUM_FRAME_SIZE        1518
  29 #define RNDIS_MAX_TOTAL_SIZE            1558
  30
  31 /* Remote NDIS Versions */
  32 #define RNDIS_MAJOR_VERSION             1
  33 #define RNDIS_MINOR_VERSION             0
  34
  35 /* Status Values */
  36 #define RNDIS_STATUS_SUCCESS            0x00000000U     /* Success           */
  37 #define RNDIS_STATUS_FAILURE            0xC0000001U     /* Unspecified error */
  38 #define RNDIS_STATUS_INVALID_DATA       0xC0010015U     /* Invalid data      */
  39 #define RNDIS_STATUS_NOT_SUPPORTED      0xC00000BBU     /* Unsupported request */
  40 #define RNDIS_STATUS_MEDIA_CONNECT      0x4001000BU     /* Device connected  */
  41 #define RNDIS_STATUS_MEDIA_DISCONNECT   0x4001000CU     /* Device disconnected */
  42 /*
  43  * For all not specified status messages:
  44  * RNDIS_STATUS_Xxx -> NDIS_STATUS_Xxx
  45  */
  46
  47 /* Message Set for Connectionless (802.3) Devices */
  48 #define REMOTE_NDIS_PACKET_MSG          0x00000001U
  49 #define REMOTE_NDIS_INITIALIZE_MSG      0x00000002U     /* Initialize device */
  50 #define REMOTE_NDIS_HALT_MSG            0x00000003U
  51 #define REMOTE_NDIS_QUERY_MSG           0x00000004U
  52 #define REMOTE_NDIS_SET_MSG             0x00000005U
  53 #define REMOTE_NDIS_RESET_MSG           0x00000006U
  54 #define REMOTE_NDIS_INDICATE_STATUS_MSG 0x00000007U
  55 #define REMOTE_NDIS_KEEPALIVE_MSG       0x00000008U
  56
  57 /* Message completion */
  58 #define REMOTE_NDIS_INITIALIZE_CMPLT    0x80000002U
  59 #define REMOTE_NDIS_QUERY_CMPLT         0x80000004U
  60 #define REMOTE_NDIS_SET_CMPLT           0x80000005U
  61 #define REMOTE_NDIS_RESET_CMPLT         0x80000006U
  62 #define REMOTE_NDIS_KEEPALIVE_CMPLT     0x80000008U
  63
  64 /* Device Flags */
  65 #define RNDIS_DF_CONNECTIONLESS         0x00000001U
  66 #define RNDIS_DF_CONNECTION_ORIENTED    0x00000002U
  67
  68 #define RNDIS_MEDIUM_802_3              0x00000000U
  69
  70 /* from drivers/net/sk98lin/h/skgepnmi.h */
  71 #define OID_PNP_CAPABILITIES                    0xFD010100
  72 #define OID_PNP_SET_POWER                       0xFD010101
  73 #define OID_PNP_QUERY_POWER                     0xFD010102
  74 #define OID_PNP_ADD_WAKE_UP_PATTERN             0xFD010103
  75 #define OID_PNP_REMOVE_WAKE_UP_PATTERN          0xFD010104
  76 #define OID_PNP_ENABLE_WAKE_UP                  0xFD010106
  77
  78
  79 typedef struct rndis_init_msg_type {
  80         __le32  MessageType;
  81         __le32  MessageLength;
  82         __le32  RequestID;
  83         __le32  MajorVersion;
  84         __le32  MinorVersion;
  85         __le32  MaxTransferSize;
  86 } rndis_init_msg_type;
  87
  88 typedef struct rndis_init_cmplt_type {
  89         __le32  MessageType;
  90         __le32  MessageLength;
  91         __le32  RequestID;
  92         __le32  Status;
  93         __le32  MajorVersion;
  94         __le32  MinorVersion;
  95         __le32  DeviceFlags;
  96         __le32  Medium;
  97         __le32  MaxPacketsPerTransfer;
  98         __le32  MaxTransferSize;
  99         __le32  PacketAlignmentFactor;
 100         __le32  AFListOffset;
 101         __le32  AFListSize;
 102 } rndis_init_cmplt_type;
 103
 104 typedef struct rndis_halt_msg_type {
 105         __le32  MessageType;
 106         __le32  MessageLength;
 107         __le32  RequestID;
 108 } rndis_halt_msg_type;
 109
 110 typedef struct rndis_query_msg_type {
 111         __le32  MessageType;
 112         __le32  MessageLength;
 113         __le32  RequestID;
 114         __le32  OID;
 115         __le32  InformationBufferLength;
 116         __le32  InformationBufferOffset;
 117         __le32  DeviceVcHandle;
 118 } rndis_query_msg_type;
 119
 120 typedef struct rndis_query_cmplt_type {
 121         __le32  MessageType;
 122         __le32  MessageLength;
 123         __le32  RequestID;
 124         __le32  Status;
 125         __le32  InformationBufferLength;
 126         __le32  InformationBufferOffset;
 127 } rndis_query_cmplt_type;
 128
 129 typedef struct rndis_set_msg_type {
 130         __le32  MessageType;
 131         __le32  MessageLength;
 132         __le32  RequestID;
 133         __le32  OID;
 134         __le32  InformationBufferLength;
 135         __le32  InformationBufferOffset;
 136         __le32  DeviceVcHandle;
 137 } rndis_set_msg_type;
 138
 139 typedef struct rndis_set_cmplt_type {
 140         __le32  MessageType;
 141         __le32  MessageLength;
 142         __le32  RequestID;
 143         __le32  Status;
 144 } rndis_set_cmplt_type;
 145
 146 typedef struct rndis_reset_msg_type {
 147         __le32  MessageType;
 148         __le32  MessageLength;
 149         __le32  Reserved;
 150 } rndis_reset_msg_type;
 151
 152 typedef struct rndis_reset_cmplt_type {
 153         __le32  MessageType;
 154         __le32  MessageLength;
 155         __le32  Status;
 156         __le32  AddressingReset;
 157 } rndis_reset_cmplt_type;
 158
 159 typedef struct rndis_indicate_status_msg_type {
 160         __le32  MessageType;
 161         __le32  MessageLength;
 162         __le32  Status;
 163         __le32  StatusBufferLength;
 164         __le32  StatusBufferOffset;
 165 } rndis_indicate_status_msg_type;
 166
 167 typedef struct rndis_keepalive_msg_type {
 168         __le32  MessageType;
 169         __le32  MessageLength;
 170         __le32  RequestID;
 171 } rndis_keepalive_msg_type;
 172
 173 typedef struct rndis_keepalive_cmplt_type {
 174         __le32  MessageType;
 175         __le32  MessageLength;
 176         __le32  RequestID;
 177         __le32  Status;
 178 } rndis_keepalive_cmplt_type;
 179
 180 struct rndis_packet_msg_type {
 181         __le32  MessageType;
 182         __le32  MessageLength;
 183         __le32  DataOffset;
 184         __le32  DataLength;
 185         __le32  OOBDataOffset;
 186         __le32  OOBDataLength;
 187         __le32  NumOOBDataElements;
 188         __le32  PerPacketInfoOffset;
 189         __le32  PerPacketInfoLength;
 190         __le32  VcHandle;
 191         __le32  Reserved;
 192 } __attribute__ ((packed));
 193
 194 struct rndis_config_parameter {
 195         __le32  ParameterNameOffset;
 196         __le32  ParameterNameLength;
 197         __le32  ParameterType;
 198         __le32  ParameterValueOffset;
 199         __le32  ParameterValueLength;
 200 };
 201
 202 /* implementation specific */
 203 enum rndis_state {
 204         RNDIS_UNINITIALIZED,
 205         RNDIS_INITIALIZED,
 206         RNDIS_DATA_INITIALIZED,
 207 };
 208
 209 typedef struct rndis_resp_t {
 210         struct list_head        list;
 211         u8                      *buf;
 212         u32                     length;
 213         int                     send;
 214 } rndis_resp_t;
 215
 216 typedef struct rndis_params {
 217         u8                      confignr;
 218         u8                      used;
 219         u16                     saved_filter;
 220         enum rndis_state        state;
 221         u32                     medium;
 222         u32                     speed;
 223         u32                     media_state;
 224
 225         const u8                *host_mac;
 226         u16                     *filter;
 227         struct eth_device       *dev;
 228         struct net_device_stats *stats;
 229         int                     mtu;
 230
 231         u32                     vendorID;
 232         const char              *vendorDescr;
 233         int                     (*ack)(struct eth_device *);
 234         struct list_head        resp_queue;
 235 } rndis_params;
 236
 237 /* RNDIS Message parser and other useless functions */
 238 int  rndis_msg_parser(u8 configNr, u8 *buf);
 239 enum rndis_state rndis_get_state(int configNr);
 240 int  rndis_register(int (*rndis_control_ack)(struct eth_device *));
 241 void rndis_deregister(int configNr);
 242 int  rndis_set_param_dev(u8 configNr, struct eth_device *dev, int mtu,
 243                         struct net_device_stats *stats, u16 *cdc_filter);
 244 int  rndis_set_param_vendor(u8 configNr, u32 vendorID,
 245                             const char *vendorDescr);
 246 int  rndis_set_param_medium(u8 configNr, u32 medium, u32 speed);
 247 void rndis_add_hdr(void *bug, int length);
 248 int rndis_rm_hdr(void *bug, int length);
 249 u8   *rndis_get_next_response(int configNr, u32 *length);
 250 void rndis_free_response(int configNr, u8 *buf);
 251
 252 void rndis_uninit(int configNr);
 253 int  rndis_signal_connect(int configNr);
 254 int  rndis_signal_disconnect(int configNr);
 255 extern void rndis_set_host_mac(int configNr, const u8 *addr);
 256
 257 int rndis_init(void);
 258 void rndis_exit(void);
 259
 260 #endif  /* _USBGADGET_RNDIS_H */