drivers/isdn/act2000/capi.h

   1 /* $Id: capi.h,v 1.6.6.2 2001/09/23 22:24:32 kai Exp $
   2  *
   3  * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000.
   4  *
   5  * Author       Fritz Elfert
   6  * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  * Thanks to Friedemann Baitinger and IBM Germany
  12  *
  13  */
  14
  15 #ifndef CAPI_H
  16 #define CAPI_H
  17
  18 /* Command-part of a CAPI message */
  19 typedef struct actcapi_msgcmd {
  20         __u8 cmd;
  21         __u8 subcmd;
  22 } actcapi_msgcmd;
  23
  24 /* CAPI message header */
  25 typedef struct actcapi_msghdr {
  26         __u16 len;
  27         __u16 applicationID;
  28         actcapi_msgcmd cmd;
  29         __u16 msgnum;
  30 } actcapi_msghdr;
  31
  32 /* CAPI message description (for debugging) */
  33 typedef struct actcapi_msgdsc {
  34         actcapi_msgcmd cmd;
  35         char *description;
  36 } actcapi_msgdsc;
  37
  38 /* CAPI Address */
  39 typedef struct actcapi_addr {
  40         __u8 len;                            /* Length of element            */
  41         __u8 tnp;                            /* Type/Numbering Plan          */
  42         __u8 num[20];                        /* Caller ID                    */
  43 } actcapi_addr;
  44
  45 /* CAPI INFO element mask */
  46 typedef  union actcapi_infonr {              /* info number                  */
  47         __u16 mask;                          /* info-mask field              */
  48         struct bmask {                       /* bit definitions              */
  49                 unsigned  codes : 3;         /* code set                     */
  50                 unsigned  rsvd  : 5;         /* reserved                     */
  51                 unsigned  svind : 1;         /* single, variable length ind. */
  52                 unsigned  wtype : 7;         /* W-element type               */
  53         } bmask;
  54 } actcapi_infonr;
  55
  56 /* CAPI INFO element */
  57 typedef union  actcapi_infoel {              /* info element                 */
  58         __u8 len;                            /* length of info element       */
  59         __u8 display[40];                    /* display contents             */
  60         __u8 uuinfo[40];                     /* User-user info field         */
  61         struct cause {                       /* Cause information            */
  62                 unsigned ext2  : 1;          /* extension                    */
  63                 unsigned cod   : 2;          /* coding standard              */
  64                 unsigned spare : 1;          /* spare                        */
  65                 unsigned loc   : 4;          /* location                     */
  66                 unsigned ext1  : 1;          /* extension                    */
  67                 unsigned cval  : 7;          /* Cause value                  */
  68         } cause;
  69         struct charge {                      /* Charging information         */
  70                 __u8 toc;                    /* type of charging info        */
  71                 __u8 unit[10];               /* charging units               */
  72         } charge;
  73         __u8 date[20];                       /* date fields                  */
  74         __u8 stat;                           /* state of remote party        */
  75 } actcapi_infoel;
  76
  77 /* Message for EAZ<->MSN Mapping */
  78 typedef struct actcapi_msn {
  79         __u8 eaz;
  80         __u8 len;                            /* Length of MSN                */
  81         __u8 msn[15] __attribute__ ((packed));
  82 } actcapi_msn;
  83
  84 typedef struct actcapi_dlpd {
  85         __u8 len;                            /* Length of structure          */
  86         __u16 dlen __attribute__ ((packed)); /* Data Length                  */
  87         __u8 laa __attribute__ ((packed));   /* Link Address A               */
  88         __u8 lab;                            /* Link Address B               */
  89         __u8 modulo;                         /* Modulo Mode                  */
  90         __u8 win;                            /* Window size                  */
  91         __u8 xid[100];                       /* XID Information              */
  92 } actcapi_dlpd;
  93
  94 typedef struct actcapi_ncpd {
  95         __u8   len;                          /* Length of structure          */
  96         __u16  lic __attribute__ ((packed));
  97         __u16  hic __attribute__ ((packed));
  98         __u16  ltc __attribute__ ((packed));
  99         __u16  htc __attribute__ ((packed));
 100         __u16  loc __attribute__ ((packed));
 101         __u16  hoc __attribute__ ((packed));
 102         __u8   modulo __attribute__ ((packed));
 103 } actcapi_ncpd;
 104 #define actcapi_ncpi actcapi_ncpd
 105
 106 /*
 107  * Layout of NCCI field in a B3 DATA CAPI message is different from
 108  * standard at act2000:
 109  *
 110  * Bit 0-4  = PLCI
 111  * Bit 5-7  = Controller
 112  * Bit 8-15 = NCCI
 113  */
 114 #define MAKE_NCCI(plci,contr,ncci) \
 115         ((plci & 0x1f) | ((contr & 0x7) << 5) | ((ncci & 0xff) << 8))
 116
 117 #define EVAL_NCCI(fakencci,plci,contr,ncci) { \
 118         plci  = fakencci & 0x1f; \
 119         contr = (fakencci >> 5) & 0x7; \
 120         ncci  = (fakencci >> 8) & 0xff; \
 121 }
 122
 123 /*
 124  * Layout of PLCI field in a B3 DATA CAPI message is different from
 125  * standard at act2000:
 126  *
 127  * Bit 0-4  = PLCI
 128  * Bit 5-7  = Controller
 129  * Bit 8-15 = reserved (must be 0)
 130  */
 131 #define MAKE_PLCI(plci,contr) \
 132         ((plci & 0x1f) | ((contr & 0x7) << 5))
 133
 134 #define EVAL_PLCI(fakeplci,plci,contr) { \
 135         plci  = fakeplci & 0x1f; \
 136         contr = (fakeplci >> 5) & 0x7; \
 137 }
 138
 139 typedef struct actcapi_msg {
 140         actcapi_msghdr hdr;
 141         union {
 142                 __u16 manuf_msg;
 143                 struct manufacturer_req_net {
 144                         __u16 manuf_msg;
 145                         __u16 controller;
 146                         __u8  nettype;
 147                 } manufacturer_req_net;
 148                 struct manufacturer_req_v42 {
 149                         __u16 manuf_msg;
 150                         __u16 controller;
 151                         __u32 v42control;
 152                 } manufacturer_req_v42;
 153                 struct manufacturer_conf_v42 {
 154                         __u16 manuf_msg;
 155                         __u16 controller;
 156                 } manufacturer_conf_v42;
 157                 struct manufacturer_req_err {
 158                         __u16 manuf_msg;
 159                         __u16 controller;
 160                 } manufacturer_req_err;
 161                 struct manufacturer_ind_err {
 162                         __u16 manuf_msg;
 163                         __u16 controller;
 164                         __u32 errcode;
 165                         __u8  errstring; /* actually up to 160 */
 166                 } manufacturer_ind_err;
 167                 struct manufacturer_req_msn {
 168                         __u16 manuf_msg;
 169                         __u16 controller;
 170                         actcapi_msn msnmap;
 171                 } manufacturer_req_msn;
 172                 /* TODO: TraceInit-req/conf/ind/resp and
 173                  *       TraceDump-req/conf/ind/resp
 174                  */
 175                 struct connect_req {
 176                         __u8  controller;
 177                         __u8  bchan;
 178                         __u32 infomask __attribute__ ((packed));
 179                         __u8  si1;
 180                         __u8  si2;
 181                         __u8  eaz;
 182                         actcapi_addr addr;
 183                 } connect_req;
 184                 struct connect_conf {
 185                         __u16 plci;
 186                         __u16 info;
 187                 } connect_conf;
 188                 struct connect_ind {
 189                         __u16 plci;
 190                         __u8  controller;
 191                         __u8  si1;
 192                         __u8  si2;
 193                         __u8  eaz;
 194                         actcapi_addr addr;
 195                 } connect_ind;
 196                 struct connect_resp {
 197                         __u16 plci;
 198                         __u8  rejectcause;
 199                 } connect_resp;
 200                 struct connect_active_ind {
 201                         __u16 plci;
 202                         actcapi_addr addr;
 203                 } connect_active_ind;
 204                 struct connect_active_resp {
 205                         __u16 plci;
 206                 } connect_active_resp;
 207                 struct connect_b3_req {
 208                         __u16 plci;
 209                         actcapi_ncpi ncpi;
 210                 } connect_b3_req;
 211                 struct connect_b3_conf {
 212                         __u16 plci;
 213                         __u16 ncci;
 214                         __u16 info;
 215                 } connect_b3_conf;
 216                 struct connect_b3_ind {
 217                         __u16 ncci;
 218                         __u16 plci;
 219                         actcapi_ncpi ncpi;
 220                 } connect_b3_ind;
 221                 struct connect_b3_resp {
 222                         __u16 ncci;
 223                         __u8  rejectcause;
 224                         actcapi_ncpi ncpi __attribute__ ((packed));
 225                 } connect_b3_resp;
 226                 struct disconnect_req {
 227                         __u16 plci;
 228                         __u8  cause;
 229                 } disconnect_req;
 230                 struct disconnect_conf {
 231                         __u16 plci;
 232                         __u16 info;
 233                 } disconnect_conf;
 234                 struct disconnect_ind {
 235                         __u16 plci;
 236                         __u16 info;
 237                 } disconnect_ind;
 238                 struct disconnect_resp {
 239                         __u16 plci;
 240                 } disconnect_resp;
 241                 struct connect_b3_active_ind {
 242                         __u16 ncci;
 243                         actcapi_ncpi ncpi;
 244                 } connect_b3_active_ind;
 245                 struct connect_b3_active_resp {
 246                         __u16 ncci;
 247                 } connect_b3_active_resp;
 248                 struct disconnect_b3_req {
 249                         __u16 ncci;
 250                         actcapi_ncpi ncpi;
 251                 } disconnect_b3_req;
 252                 struct disconnect_b3_conf {
 253                         __u16 ncci;
 254                         __u16 info;
 255                 } disconnect_b3_conf;
 256                 struct disconnect_b3_ind {
 257                         __u16 ncci;
 258                         __u16 info;
 259                         actcapi_ncpi ncpi;
 260                 } disconnect_b3_ind;
 261                 struct disconnect_b3_resp {
 262                         __u16 ncci;
 263                 } disconnect_b3_resp;
 264                 struct info_ind {
 265                         __u16 plci;
 266                         actcapi_infonr nr;
 267                         actcapi_infoel el;
 268                 } info_ind;
 269                 struct info_resp {
 270                         __u16 plci;
 271                 } info_resp;
 272                 struct listen_b3_req {
 273                         __u16 plci;
 274                 } listen_b3_req;
 275                 struct listen_b3_conf {
 276                         __u16 plci;
 277                         __u16 info;
 278                 } listen_b3_conf;
 279                 struct select_b2_protocol_req {
 280                         __u16 plci;
 281                         __u8  protocol;
 282                         actcapi_dlpd dlpd __attribute__ ((packed));
 283                 } select_b2_protocol_req;
 284                 struct select_b2_protocol_conf {
 285                         __u16 plci;
 286                         __u16 info;
 287                 } select_b2_protocol_conf;
 288                 struct select_b3_protocol_req {
 289                         __u16 plci;
 290                         __u8  protocol;
 291                         actcapi_ncpd ncpd __attribute__ ((packed));
 292                 } select_b3_protocol_req;
 293                 struct select_b3_protocol_conf {
 294                         __u16 plci;
 295                         __u16 info;
 296                 } select_b3_protocol_conf;
 297                 struct listen_req {
 298                         __u8  controller;
 299                         __u32 infomask __attribute__ ((packed));
 300                         __u16 eazmask __attribute__ ((packed));
 301                         __u16 simask __attribute__ ((packed));
 302                 } listen_req;
 303                 struct listen_conf {
 304                         __u8  controller;
 305                         __u16 info __attribute__ ((packed));
 306                 } listen_conf;
 307                 struct data_b3_req {
 308                         __u16 fakencci;
 309                         __u16 datalen;
 310                         __u32 unused;
 311                         __u8  blocknr;
 312                         __u16 flags __attribute__ ((packed));
 313                 } data_b3_req;
 314                 struct data_b3_ind {
 315                         __u16 fakencci;
 316                         __u16 datalen;
 317                         __u32 unused;
 318                         __u8  blocknr;
 319                         __u16 flags __attribute__ ((packed));
 320                 } data_b3_ind;
 321                 struct data_b3_resp {
 322                         __u16 ncci;
 323                         __u8  blocknr;
 324                 } data_b3_resp;
 325                 struct data_b3_conf {
 326                         __u16 ncci;
 327                         __u8  blocknr;
 328                         __u16 info __attribute__ ((packed));
 329                 } data_b3_conf;
 330         } msg;
 331 } actcapi_msg;
 332
 333 static inline unsigned short
 334 actcapi_nextsmsg(act2000_card *card)
 335 {
 336         unsigned long flags;
 337         unsigned short n;
 338
 339         spin_lock_irqsave(&card->mnlock, flags);
 340         n = card->msgnum;
 341         card->msgnum++;
 342         card->msgnum &= 0x7fff;
 343         spin_unlock_irqrestore(&card->mnlock, flags);
 344         return n;
 345 }
 346 #define DEBUG_MSG
 347 #undef DEBUG_DATA_MSG
 348 #undef DEBUG_DUMP_SKB
 349
 350 extern int actcapi_chkhdr(act2000_card *, actcapi_msghdr *);
 351 extern int actcapi_listen_req(act2000_card *);
 352 extern int actcapi_manufacturer_req_net(act2000_card *);
 353 extern int actcapi_manufacturer_req_errh(act2000_card *);
 354 extern int actcapi_manufacturer_req_msn(act2000_card *);
 355 extern int actcapi_connect_req(act2000_card *, act2000_chan *, char *, char, int, int);
 356 extern void actcapi_select_b2_protocol_req(act2000_card *, act2000_chan *);
 357 extern void actcapi_disconnect_b3_req(act2000_card *, act2000_chan *);
 358 extern void actcapi_connect_resp(act2000_card *, act2000_chan *, __u8);
 359 extern void actcapi_dispatch(act2000_card *);
 360 #ifdef DEBUG_MSG
 361 extern void actcapi_debug_msg(struct sk_buff *skb, int);
 362 #else
 363 #define actcapi_debug_msg(skb, len)
 364 #endif
 365 #endif