include/linux/cdk.h

   1 /*****************************************************************************/
   2
   3 /*
   4  *      cdk.h  -- CDK interface definitions.
   5  *
   6  *      Copyright (C) 1996-1998  Stallion Technologies
   7  *      Copyright (C) 1994-1996  Greg Ungerer.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 /*****************************************************************************/
  25 #ifndef _CDK_H
  26 #define _CDK_H
  27 /*****************************************************************************/
  28
  29 #pragma pack(2)
  30
  31 /*
  32  *      The following set of definitions is used to communicate with the
  33  *      shared memory interface of the Stallion intelligent multiport serial
  34  *      boards. The definitions in this file are taken directly from the
  35  *      document titled "Generic Stackable Interface, Downloader and
  36  *      Communications Development Kit".
  37  */
  38
  39 /*
  40  *      Define the set of important shared memory addresses. These are
  41  *      required to initialize the board and get things started. All of these
  42  *      addresses are relative to the start of the shared memory.
  43  */
  44 #define CDK_SIGADDR     0x200
  45 #define CDK_FEATADDR    0x280
  46 #define CDK_CDKADDR     0x300
  47 #define CDK_RDYADDR     0x262
  48
  49 #define CDK_ALIVEMARKER 13
  50
  51 /*
  52  *      On hardware power up the ROMs located on the EasyConnection 8/64 will
  53  *      fill out the following signature information into shared memory. This
  54  *      way the host system can quickly determine that the board is present
  55  *      and is operational.
  56  */
  57 typedef struct cdkecpsig {
  58         unsigned long   magic;
  59         unsigned short  romver;
  60         unsigned short  cputype;
  61         unsigned char   panelid[8];
  62 } cdkecpsig_t;
  63
  64 #define ECP_MAGIC       0x21504345
  65
  66 /*
  67  *      On hardware power up the ROMs located on the ONboard, Stallion and
  68  *      Brumbys will fill out the following signature information into shared
  69  *      memory. This way the host system can quickly determine that the board
  70  *      is present and is operational.
  71  */
  72 typedef struct cdkonbsig {
  73         unsigned short  magic0;
  74         unsigned short  magic1;
  75         unsigned short  magic2;
  76         unsigned short  magic3;
  77         unsigned short  romver;
  78         unsigned short  memoff;
  79         unsigned short  memseg;
  80         unsigned short  amask0;
  81         unsigned short  pic;
  82         unsigned short  status;
  83         unsigned short  btype;
  84         unsigned short  clkticks;
  85         unsigned short  clkspeed;
  86         unsigned short  amask1;
  87         unsigned short  amask2;
  88 } cdkonbsig_t;
  89
  90 #define ONB_MAGIC0      0xf2a7
  91 #define ONB_MAGIC1      0xa149
  92 #define ONB_MAGIC2      0x6352
  93 #define ONB_MAGIC3      0xf121
  94
  95 /*
  96  *      Define the feature area structure. The feature area is the set of
  97  *      startup parameters used by the slave image when it starts executing.
  98  *      They allow for the specification of buffer sizes, debug trace, etc.
  99  */
 100 typedef struct cdkfeature {
 101         unsigned long   debug;
 102         unsigned long   banner;
 103         unsigned long   etype;
 104         unsigned long   nrdevs;
 105         unsigned long   brdspec;
 106         unsigned long   txrqsize;
 107         unsigned long   rxrqsize;
 108         unsigned long   flags;
 109 } cdkfeature_t;
 110
 111 #define ETYP_DDK        0
 112 #define ETYP_CDK        1
 113
 114 /*
 115  *      Define the CDK header structure. This is the info that the slave
 116  *      environment sets up after it has been downloaded and started. It
 117  *      essentially provides a memory map for the shared memory interface.
 118  */
 119 typedef struct cdkhdr {
 120         unsigned short  command;
 121         unsigned short  status;
 122         unsigned short  port;
 123         unsigned short  mode;
 124         unsigned long   cmd_buf[14];
 125         unsigned short  alive_cnt;
 126         unsigned short  intrpt_mode;
 127         unsigned char   intrpt_id[8];
 128         unsigned char   ver_release;
 129         unsigned char   ver_modification;
 130         unsigned char   ver_fix;
 131         unsigned char   deadman_restart;
 132         unsigned short  deadman;
 133         unsigned short  nrdevs;
 134         unsigned long   memp;
 135         unsigned long   hostp;
 136         unsigned long   slavep;
 137         unsigned char   hostreq;
 138         unsigned char   slavereq;
 139         unsigned char   cmd_reserved[30];
 140 } cdkhdr_t;
 141
 142 #define MODE_DDK        0
 143 #define MODE_CDK        1
 144
 145 #define IMD_INTR        0x0
 146 #define IMD_PPINTR      0x1
 147 #define IMD_POLL        0xff
 148
 149 /*
 150  *      Define the memory mapping structure. This structure is pointed to by
 151  *      the memp field in the stlcdkhdr struct. As many as these structures
 152  *      as required are laid out in shared memory to define how the rest of
 153  *      shared memory is divided up. There will be one for each port.
 154  */
 155 typedef struct cdkmem {
 156         unsigned short  dtype;
 157         unsigned long   offset;
 158 } cdkmem_t;
 159
 160 #define TYP_UNDEFINED   0x0
 161 #define TYP_ASYNCTRL    0x1
 162 #define TYP_ASYNC       0x20
 163 #define TYP_PARALLEL    0x40
 164 #define TYP_SYNCX21     0x60
 165
 166 /*****************************************************************************/
 167
 168 /*
 169  *      Following is a set of defines and structures used to actually deal
 170  *      with the serial ports on the board. Firstly is the set of commands
 171  *      that can be applied to ports.
 172  */
 173 #define ASYCMD          (((unsigned long) 'a') << 8)
 174
 175 #define A_NULL          (ASYCMD | 0)
 176 #define A_FLUSH         (ASYCMD | 1)
 177 #define A_BREAK         (ASYCMD | 2)
 178 #define A_GETPORT       (ASYCMD | 3)
 179 #define A_SETPORT       (ASYCMD | 4)
 180 #define A_SETPORTF      (ASYCMD | 5)
 181 #define A_SETPORTFTX    (ASYCMD | 6)
 182 #define A_SETPORTFRX    (ASYCMD | 7)
 183 #define A_GETSIGNALS    (ASYCMD | 8)
 184 #define A_SETSIGNALS    (ASYCMD | 9)
 185 #define A_SETSIGNALSF   (ASYCMD | 10)
 186 #define A_SETSIGNALSFTX (ASYCMD | 11)
 187 #define A_SETSIGNALSFRX (ASYCMD | 12)
 188 #define A_GETNOTIFY     (ASYCMD | 13)
 189 #define A_SETNOTIFY     (ASYCMD | 14)
 190 #define A_NOTIFY        (ASYCMD | 15)
 191 #define A_PORTCTRL      (ASYCMD | 16)
 192 #define A_GETSTATS      (ASYCMD | 17)
 193 #define A_RQSTATE       (ASYCMD | 18)
 194 #define A_FLOWSTATE     (ASYCMD | 19)
 195 #define A_CLEARSTATS    (ASYCMD | 20)
 196
 197 /*
 198  *      Define those arguments used for simple commands.
 199  */
 200 #define FLUSHRX         0x1
 201 #define FLUSHTX         0x2
 202
 203 #define BREAKON         -1
 204 #define BREAKOFF        -2
 205
 206 /*
 207  *      Define the port setting structure, and all those defines that go along
 208  *      with it. Basically this structure defines the characteristics of this
 209  *      port: baud rate, chars, parity, input/output char cooking etc.
 210  */
 211 typedef struct asyport {
 212         unsigned long   baudout;
 213         unsigned long   baudin;
 214         unsigned long   iflag;
 215         unsigned long   oflag;
 216         unsigned long   lflag;
 217         unsigned long   pflag;
 218         unsigned long   flow;
 219         unsigned long   spare1;
 220         unsigned short  vtime;
 221         unsigned short  vmin;
 222         unsigned short  txlo;
 223         unsigned short  txhi;
 224         unsigned short  rxlo;
 225         unsigned short  rxhi;
 226         unsigned short  rxhog;
 227         unsigned short  spare2;
 228         unsigned char   csize;
 229         unsigned char   stopbs;
 230         unsigned char   parity;
 231         unsigned char   stopin;
 232         unsigned char   startin;
 233         unsigned char   stopout;
 234         unsigned char   startout;
 235         unsigned char   parmark;
 236         unsigned char   brkmark;
 237         unsigned char   cc[11];
 238 } asyport_t;
 239
 240 #define PT_STOP1        0x0
 241 #define PT_STOP15       0x1
 242 #define PT_STOP2        0x2
 243
 244 #define PT_NOPARITY     0x0
 245 #define PT_ODDPARITY    0x1
 246 #define PT_EVENPARITY   0x2
 247 #define PT_MARKPARITY   0x3
 248 #define PT_SPACEPARITY  0x4
 249
 250 #define F_NONE          0x0
 251 #define F_IXON          0x1
 252 #define F_IXOFF         0x2
 253 #define F_IXANY         0x4
 254 #define F_IOXANY        0x8
 255 #define F_RTSFLOW       0x10
 256 #define F_CTSFLOW       0x20
 257 #define F_DTRFLOW       0x40
 258 #define F_DCDFLOW       0x80
 259 #define F_DSROFLOW      0x100
 260 #define F_DSRIFLOW      0x200
 261
 262 #define FI_NORX         0x1
 263 #define FI_RAW          0x2
 264 #define FI_ISTRIP       0x4
 265 #define FI_UCLC         0x8
 266 #define FI_INLCR        0x10
 267 #define FI_ICRNL        0x20
 268 #define FI_IGNCR        0x40
 269 #define FI_IGNBREAK     0x80
 270 #define FI_DSCRDBREAK   0x100
 271 #define FI_1MARKBREAK   0x200
 272 #define FI_2MARKBREAK   0x400
 273 #define FI_XCHNGBREAK   0x800
 274 #define FI_IGNRXERRS    0x1000
 275 #define FI_DSCDRXERRS   0x2000
 276 #define FI_1MARKRXERRS  0x4000
 277 #define FI_2MARKRXERRS  0x8000
 278 #define FI_XCHNGRXERRS  0x10000
 279 #define FI_DSCRDNULL    0x20000
 280
 281 #define FO_OLCUC        0x1
 282 #define FO_ONLCR        0x2
 283 #define FO_OOCRNL       0x4
 284 #define FO_ONOCR        0x8
 285 #define FO_ONLRET       0x10
 286 #define FO_ONL          0x20
 287 #define FO_OBS          0x40
 288 #define FO_OVT          0x80
 289 #define FO_OFF          0x100
 290 #define FO_OTAB1        0x200
 291 #define FO_OTAB2        0x400
 292 #define FO_OTAB3        0x800
 293 #define FO_OCR1         0x1000
 294 #define FO_OCR2         0x2000
 295 #define FO_OCR3         0x4000
 296 #define FO_OFILL        0x8000
 297 #define FO_ODELL        0x10000
 298
 299 #define P_RTSLOCK       0x1
 300 #define P_CTSLOCK       0x2
 301 #define P_MAPRTS        0x4
 302 #define P_MAPCTS        0x8
 303 #define P_LOOPBACK      0x10
 304 #define P_DTRFOLLOW     0x20
 305 #define P_FAKEDCD       0x40
 306
 307 #define P_RXIMIN        0x10000
 308 #define P_RXITIME       0x20000
 309 #define P_RXTHOLD       0x40000
 310
 311 /*
 312  *      Define a structure to communicate serial port signal and data state
 313  *      information.
 314  */
 315 typedef struct asysigs {
 316         unsigned long   data;
 317         unsigned long   signal;
 318         unsigned long   sigvalue;
 319 } asysigs_t;
 320
 321 #define DT_TXBUSY       0x1
 322 #define DT_TXEMPTY      0x2
 323 #define DT_TXLOW        0x4
 324 #define DT_TXHIGH       0x8
 325 #define DT_TXFULL       0x10
 326 #define DT_TXHOG        0x20
 327 #define DT_TXFLOWED     0x40
 328 #define DT_TXBREAK      0x80
 329
 330 #define DT_RXBUSY       0x100
 331 #define DT_RXEMPTY      0x200
 332 #define DT_RXLOW        0x400
 333 #define DT_RXHIGH       0x800
 334 #define DT_RXFULL       0x1000
 335 #define DT_RXHOG        0x2000
 336 #define DT_RXFLOWED     0x4000
 337 #define DT_RXBREAK      0x8000
 338
 339 #define SG_DTR          0x1
 340 #define SG_DCD          0x2
 341 #define SG_RTS          0x4
 342 #define SG_CTS          0x8
 343 #define SG_DSR          0x10
 344 #define SG_RI           0x20
 345
 346 /*
 347  *      Define the notification setting structure. This is used to tell the
 348  *      port what events we want to be informed about. Fields here use the
 349  *      same defines as for the asysigs structure above.
 350  */
 351 typedef struct asynotify {
 352         unsigned long   ctrl;
 353         unsigned long   data;
 354         unsigned long   signal;
 355         unsigned long   sigvalue;
 356 } asynotify_t;
 357
 358 /*
 359  *      Define the port control structure. It is used to do fine grain
 360  *      control operations on the port.
 361  */
 362 typedef struct {
 363         unsigned long   rxctrl;
 364         unsigned long   txctrl;
 365         char            rximdch;
 366         char            tximdch;
 367         char            spare1;
 368         char            spare2;
 369 } asyctrl_t;
 370
 371 #define CT_ENABLE       0x1
 372 #define CT_DISABLE      0x2
 373 #define CT_STOP         0x4
 374 #define CT_START        0x8
 375 #define CT_STARTFLOW    0x10
 376 #define CT_STOPFLOW     0x20
 377 #define CT_SENDCHR      0x40
 378
 379 /*
 380  *      Define the stats structure kept for each port. This is a useful set
 381  *      of data collected for each port on the slave. The A_GETSTATS command
 382  *      is used to retrieve this data from the slave.
 383  */
 384 typedef struct asystats {
 385         unsigned long   opens;
 386         unsigned long   txchars;
 387         unsigned long   rxchars;
 388         unsigned long   txringq;
 389         unsigned long   rxringq;
 390         unsigned long   txmsgs;
 391         unsigned long   rxmsgs;
 392         unsigned long   txflushes;
 393         unsigned long   rxflushes;
 394         unsigned long   overruns;
 395         unsigned long   framing;
 396         unsigned long   parity;
 397         unsigned long   ringover;
 398         unsigned long   lost;
 399         unsigned long   rxstart;
 400         unsigned long   rxstop;
 401         unsigned long   txstart;
 402         unsigned long   txstop;
 403         unsigned long   dcdcnt;
 404         unsigned long   dtrcnt;
 405         unsigned long   ctscnt;
 406         unsigned long   rtscnt;
 407         unsigned long   dsrcnt;
 408         unsigned long   ricnt;
 409         unsigned long   txbreaks;
 410         unsigned long   rxbreaks;
 411         unsigned long   signals;
 412         unsigned long   state;
 413         unsigned long   hwid;
 414 } asystats_t;
 415
 416 /*****************************************************************************/
 417
 418 /*
 419  *      All command and control communication with a device on the slave is
 420  *      via a control block in shared memory. Each device has its own control
 421  *      block, defined by the following structure. The control block allows
 422  *      the host to open, close and control the device on the slave.
 423  */
 424 typedef struct cdkctrl {
 425         unsigned char   open;
 426         unsigned char   close;
 427         unsigned long   openarg;
 428         unsigned long   closearg;
 429         unsigned long   cmd;
 430         unsigned long   status;
 431         unsigned long   args[32];
 432 } cdkctrl_t;
 433
 434 /*
 435  *      Each device on the slave passes data to and from the host via a ring
 436  *      queue in shared memory. Define a ring queue structure to hold the
 437  *      vital information about each ring queue. Two ring queues will be
 438  *      allocated for each port, one for receive data and one for transmit
 439  *      data.
 440  */
 441 typedef struct cdkasyrq {
 442         unsigned long   offset;
 443         unsigned short  size;
 444         unsigned short  head;
 445         unsigned short  tail;
 446 } cdkasyrq_t;
 447
 448 /*
 449  *      Each asynchronous port is defined in shared memory by the following
 450  *      structure. It contains a control block to command a device, and also
 451  *      the necessary data channel information as well.
 452  */
 453 typedef struct cdkasy {
 454         cdkctrl_t       ctrl;
 455         unsigned short  notify;
 456         asynotify_t     changed;
 457         unsigned short  receive;
 458         cdkasyrq_t      rxq;
 459         unsigned short  transmit;
 460         cdkasyrq_t      txq;
 461 } cdkasy_t;
 462
 463 #pragma pack()
 464
 465 /*****************************************************************************/
 466
 467 /*
 468  *      Define the set of ioctls used by the driver to do special things
 469  *      to the board. These include interrupting it, and initializing
 470  *      the driver after board startup and shutdown.
 471  */
 472 #include <linux/ioctl.h>
 473
 474 #define STL_BINTR       _IO('s',20)
 475 #define STL_BSTART      _IO('s',21)
 476 #define STL_BSTOP       _IO('s',22)
 477 #define STL_BRESET      _IO('s',23)
 478
 479 /*
 480  *      Define a set of ioctl extensions, used to get at special stuff.
 481  */
 482 #define STL_GETPFLAG    _IO('s',80)
 483 #define STL_SETPFLAG    _IO('s',81)
 484
 485 /*****************************************************************************/
 486 #endif