drivers/char/rio/rio.h

   1 /*
   2 ** -----------------------------------------------------------------------------
   3 **
   4 **  Perle Specialix driver for Linux
   5 **  Ported from existing RIO Driver for SCO sources.
   6  *
   7  *  (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK.
   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 **      Module          : rio.h
  24 **      SID             : 1.3
  25 **      Last Modified   : 11/6/98 11:34:13
  26 **      Retrieved       : 11/6/98 11:34:22
  27 **
  28 **  ident @(#)rio.h     1.3
  29 **
  30 ** -----------------------------------------------------------------------------
  31 */
  32
  33 #ifndef __rio_rio_h__
  34 #define __rio_rio_h__
  35
  36 #ifdef SCCS_LABELS
  37 static char *_rio_h_sccs_ = "@(#)rio.h  1.3";
  38 #endif
  39
  40 /*
  41 ** 30.09.1998 ARG -
  42 ** Introduced driver version and host card type strings
  43 */
  44 #define RIO_DRV_STR "Specialix RIO Driver"
  45 #define RIO_AT_HOST_STR "ISA"
  46 #define RIO_PCI_HOST_STR "PCI"
  47
  48
  49 /*
  50 ** rio_info_store() commands (arbitary values) :
  51 */
  52 #define RIO_INFO_PUT    0xA4B3C2D1
  53 #define RIO_INFO_GET    0xF1E2D3C4
  54
  55
  56 /*
  57 ** anything that I couldn't cram in somewhere else
  58 */
  59 /*
  60 #ifndef RIODEBUG
  61 #define debug
  62 #else
  63 #define debug rioprint
  64 #endif
  65 */
  66
  67
  68 /*
  69 **      Maximum numbers of things
  70 */
  71 #define RIO_SLOTS       4       /* number of configuration slots */
  72 #define RIO_HOSTS       4       /* number of hosts that can be found */
  73 #define PORTS_PER_HOST  128     /* number of ports per host */
  74 #define LINKS_PER_UNIT  4       /* number of links from a host */
  75 #define RIO_PORTS       (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */
  76 #define RTAS_PER_HOST   (MAX_RUP) /* number of RTAs per host */
  77 #define PORTS_PER_RTA   (PORTS_PER_HOST/RTAS_PER_HOST)  /* ports on a rta */
  78 #define PORTS_PER_MODULE 4      /* number of ports on a plug-in module */
  79                                 /* number of modules on an RTA */
  80 #define MODULES_PER_RTA  (PORTS_PER_RTA/PORTS_PER_MODULE)
  81 #define MAX_PRODUCT     16      /* numbr of different product codes */
  82 #define MAX_MODULE_TYPES 16     /* number of different types of module */
  83
  84 #define RIO_CONTROL_DEV 128     /* minor number of host/control device */
  85 #define RIO_INVALID_MAJOR 0     /* test first host card's major no for validity */
  86
  87 /*
  88 ** number of RTAs that can be bound to a master
  89 */
  90 #define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS)
  91
  92 /*
  93 **      Unit types
  94 */
  95 #define PC_RTA16        0x90000000
  96 #define PC_RTA8         0xe0000000
  97 #define TYPE_HOST       0
  98 #define TYPE_RTA8       1
  99 #define TYPE_RTA16      2
 100
 101 /*
 102 **      Flag values returned by functions
 103 */
 104 #define RIO_FAIL        -1
 105 #define RIO_SUCCESS     0
 106 #define COPYFAIL        -1      /* copy[in|out] failed */
 107
 108 /*
 109 ** SysPort value for something that hasn't any ports
 110 */
 111 #define NO_PORT 0xFFFFFFFF
 112
 113 /*
 114 ** Unit ID Of all hosts
 115 */
 116 #define HOST_ID 0
 117
 118 /*
 119 ** Break bytes into nybles
 120 */
 121 #define LONYBLE(X)      ((X) & 0xF)
 122 #define HINYBLE(X)      (((X)>>4) & 0xF)
 123
 124 /*
 125 ** Flag values passed into some functions
 126 */
 127 #define DONT_SLEEP      0
 128 #define OK_TO_SLEEP     1
 129
 130 #define DONT_PRINT      1
 131 #define DO_PRINT        0
 132
 133 #define PRINT_TO_LOG_CONS       0
 134 #define PRINT_TO_CONS   1
 135 #define PRINT_TO_LOG    2
 136
 137 /*
 138 ** Timeout has trouble with times of less than 3 ticks...
 139 */
 140 #define MIN_TIMEOUT     3
 141
 142 /*
 143 **      Generally useful constants
 144 */
 145 #define HALF_A_SECOND           ((HZ)>>1)
 146 #define A_SECOND                (HZ)
 147 #define HUNDRED_HZ              ((HZ/100)?(HZ/100):1)
 148 #define FIFTY_HZ                ((HZ/50)?(HZ/50):1)
 149 #define TWENTY_HZ               ((HZ/20)?(HZ/20):1)
 150 #define TEN_HZ                  ((HZ/10)?(HZ/10):1)
 151 #define FIVE_HZ                 ((HZ/5)?(HZ/5):1)
 152 #define HUNDRED_MS              TEN_HZ
 153 #define FIFTY_MS                TWENTY_HZ
 154 #define TWENTY_MS               FIFTY_HZ
 155 #define TEN_MS                  HUNDRED_HZ
 156 #define TWO_SECONDS             ((A_SECOND)*2)
 157 #define FIVE_SECONDS            ((A_SECOND)*5)
 158 #define TEN_SECONDS             ((A_SECOND)*10)
 159 #define FIFTEEN_SECONDS         ((A_SECOND)*15)
 160 #define TWENTY_SECONDS          ((A_SECOND)*20)
 161 #define HALF_A_MINUTE           (A_MINUTE>>1)
 162 #define A_MINUTE                (A_SECOND*60)
 163 #define FIVE_MINUTES            (A_MINUTE*5)
 164 #define QUARTER_HOUR            (A_MINUTE*15)
 165 #define HALF_HOUR               (A_MINUTE*30)
 166 #define HOUR                    (A_MINUTE*60)
 167
 168 #define SIXTEEN_MEG             0x1000000
 169 #define ONE_MEG                 0x100000
 170 #define SIXTY_FOUR_K            0x10000
 171
 172 #define RIO_AT_MEM_SIZE         SIXTY_FOUR_K
 173 #define RIO_EISA_MEM_SIZE       SIXTY_FOUR_K
 174 #define RIO_MCA_MEM_SIZE        SIXTY_FOUR_K
 175
 176 #define POLL_VECTOR             0x100
 177
 178 #define COOK_WELL               0
 179 #define COOK_MEDIUM             1
 180 #define COOK_RAW                2
 181
 182 /*
 183 **      Pointer manipulation stuff
 184 **      RIO_PTR takes hostp->Caddr and the offset into the DP RAM area
 185 **      and produces a UNIX caddr_t (pointer) to the object
 186 **      RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and
 187 **      returns the offset into the DP RAM area.
 188 */
 189 #define RIO_PTR(C,O) (((caddr_t)(C))+(0xFFFF&(O)))
 190 #define RIO_OFF(C,O) ((int)(O)-(int)(C))
 191
 192 /*
 193 **      How to convert from various different device number formats:
 194 **      DEV is a dev number, as passed to open, close etc - NOT a minor
 195 **      number!
 196 **
 197 **      Note:   LynxOS only gives us 8 bits for the device minor number,
 198 **              so all this crap here to deal with 'modem' bits etc. is
 199 **              just a load of irrelevant old bunkum!
 200 **              This however does not stop us needing to define a value
 201 **              for RIO_MODEMOFFSET which is required by the 'riomkdev'
 202 **              utility in the New Config Utilities suite.
 203 */
 204 /* 0-511: direct 512-1023: modem */
 205 #define RIO_MODEMOFFSET         0x200   /* doesn't mean anything */
 206 #define RIO_MODEM_MASK          0x1FF
 207 #define RIO_MODEM_BIT           0x200
 208 #define RIO_UNMODEM(DEV)        (MINOR(DEV) & RIO_MODEM_MASK)
 209 #define RIO_ISMODEM(DEV)        (MINOR(DEV) & RIO_MODEM_BIT)
 210 #define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \
 211                                         + MINOR(DEV)
 212
 213 #define splrio  spltty
 214
 215 #define RIO_IPL 5
 216 #define RIO_PRI (PZERO+10)
 217 #define RIO_CLOSE_PRI   PZERO-1 /* uninterruptible sleeps for close */
 218
 219 typedef struct DbInf
 220 {
 221         uint    Flag;
 222         char    Name[8];
 223 } DbInf;
 224
 225 #ifndef TRUE
 226 #define TRUE (1==1)
 227 #endif
 228 #ifndef FALSE
 229 #define FALSE   (!TRUE)
 230 #endif
 231
 232 #define CSUM(pkt_ptr)  (((ushort *)(pkt_ptr))[0] + ((ushort *)(pkt_ptr))[1] + \
 233                         ((ushort *)(pkt_ptr))[2] + ((ushort *)(pkt_ptr))[3] + \
 234                         ((ushort *)(pkt_ptr))[4] + ((ushort *)(pkt_ptr))[5] + \
 235                         ((ushort *)(pkt_ptr))[6] + ((ushort *)(pkt_ptr))[7] + \
 236                         ((ushort *)(pkt_ptr))[8] + ((ushort *)(pkt_ptr))[9] )
 237
 238 /*
 239 ** This happy little macro copies SIZE bytes of data from FROM to TO
 240 ** quite well. SIZE must be a constant.
 241 */
 242 #define CCOPY( FROM, TO, SIZE ) { *(struct s { char data[SIZE]; } *)(TO) = *(struct s *)(FROM); }
 243
 244 /*
 245 ** increment a buffer pointer modulo the size of the buffer...
 246 */
 247 #define BUMP( P, I )    ((P) = (((P)+(I)) & RIOBufferMask))
 248
 249 #define INIT_PACKET( PK, PP ) \
 250 { \
 251         *((uint *)PK)    = PP->PacketInfo; \
 252 }
 253
 254 #define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to        */
 255                                /* prevent a really stupid race condition.  */
 256
 257 #define NOT_INITIALISED 0
 258 #define INITIALISED     1
 259
 260 #define NOT_POLLING     0
 261 #define POLLING         1
 262
 263 #define NOT_CHANGED     0
 264 #define CHANGED         1
 265
 266 #define NOT_INUSE       0
 267
 268 #define DISCONNECT      0
 269 #define CONNECT         1
 270
 271
 272 /*
 273 ** Machine types - these must NOT overlap with product codes 0-15
 274 */
 275 #define RIO_MIPS_R3230  31
 276 #define RIO_MIPS_R4030  32
 277
 278 #define RIO_IO_UNKNOWN  -2
 279
 280 #undef  MODERN
 281 #define ERROR( E )      do { u.u_error = E; return OPENFAIL } while ( 0 )
 282
 283 /* Defines for MPX line discipline routines */
 284
 285 #define DIST_LINESW_OPEN        0x01
 286 #define DIST_LINESW_CLOSE       0x02
 287 #define DIST_LINESW_READ        0x04
 288 #define DIST_LINESW_WRITE       0x08
 289 #define DIST_LINESW_IOCTL       0x10
 290 #define DIST_LINESW_INPUT       0x20
 291 #define DIST_LINESW_OUTPUT      0x40
 292 #define DIST_LINESW_MDMINT      0x80
 293
 294 #endif /* __rio_h__ */