include/asm-ia64/sn/module.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
   7  */
   8 #ifndef _ASM_IA64_SN_MODULE_H
   9 #define _ASM_IA64_SN_MODULE_H
  10
  11 /* parameter for format_module_id() */
  12 #define MODULE_FORMAT_BRIEF     1
  13 #define MODULE_FORMAT_LONG      2
  14 #define MODULE_FORMAT_LCD       3
  15
  16 /*
  17  *      Module id format
  18  *
  19  *      31-16   Rack ID (encoded class, group, number - 16-bit unsigned int)
  20  *       15-8   Brick type (8-bit ascii character)
  21  *        7-0   Bay (brick position in rack (0-63) - 8-bit unsigned int)
  22  *
  23  */
  24
  25 /*
  26  * Macros for getting the brick type
  27  */
  28 #define MODULE_BTYPE_MASK       0xff00
  29 #define MODULE_BTYPE_SHFT       8
  30 #define MODULE_GET_BTYPE(_m)    (((_m) & MODULE_BTYPE_MASK) >> MODULE_BTYPE_SHFT)
  31 #define MODULE_BT_TO_CHAR(_b)   ((char)(_b))
  32 #define MODULE_GET_BTCHAR(_m)   (MODULE_BT_TO_CHAR(MODULE_GET_BTYPE(_m)))
  33
  34 /*
  35  * Macros for getting the rack ID.
  36  */
  37 #define MODULE_RACK_MASK        0xffff0000
  38 #define MODULE_RACK_SHFT        16
  39 #define MODULE_GET_RACK(_m)     (((_m) & MODULE_RACK_MASK) >> MODULE_RACK_SHFT)
  40
  41 /*
  42  * Macros for getting the brick position
  43  */
  44 #define MODULE_BPOS_MASK        0x00ff
  45 #define MODULE_BPOS_SHFT        0
  46 #define MODULE_GET_BPOS(_m)     (((_m) & MODULE_BPOS_MASK) >> MODULE_BPOS_SHFT)
  47
  48 /*
  49  * Macros for encoding and decoding rack IDs
  50  * A rack number consists of three parts:
  51  *   class (0==CPU/mixed, 1==I/O), group, number
  52  *
  53  * Rack number is stored just as it is displayed on the screen:
  54  * a 3-decimal-digit number.
  55  */
  56 #define RACK_CLASS_DVDR         100
  57 #define RACK_GROUP_DVDR         10
  58 #define RACK_NUM_DVDR           1
  59
  60 #define RACK_CREATE_RACKID(_c, _g, _n)  ((_c) * RACK_CLASS_DVDR +       \
  61         (_g) * RACK_GROUP_DVDR + (_n) * RACK_NUM_DVDR)
  62
  63 #define RACK_GET_CLASS(_r)              ((_r) / RACK_CLASS_DVDR)
  64 #define RACK_GET_GROUP(_r)              (((_r) - RACK_GET_CLASS(_r) *   \
  65             RACK_CLASS_DVDR) / RACK_GROUP_DVDR)
  66 #define RACK_GET_NUM(_r)                (((_r) - RACK_GET_CLASS(_r) *   \
  67             RACK_CLASS_DVDR - RACK_GET_GROUP(_r) *      \
  68             RACK_GROUP_DVDR) / RACK_NUM_DVDR)
  69
  70 /*
  71  * Macros for encoding and decoding rack IDs
  72  * A rack number consists of three parts:
  73  *   class      1 bit, 0==CPU/mixed, 1==I/O
  74  *   group      2 bits for CPU/mixed, 3 bits for I/O
  75  *   number     3 bits for CPU/mixed, 2 bits for I/O (1 based)
  76  */
  77 #define RACK_GROUP_BITS(_r)     (RACK_GET_CLASS(_r) ? 3 : 2)
  78 #define RACK_NUM_BITS(_r)       (RACK_GET_CLASS(_r) ? 2 : 3)
  79
  80 #define RACK_CLASS_MASK(_r)     0x20
  81 #define RACK_CLASS_SHFT(_r)     5
  82 #define RACK_ADD_CLASS(_r, _c)  \
  83         ((_r) |= (_c) << RACK_CLASS_SHFT(_r) & RACK_CLASS_MASK(_r))
  84
  85 #define RACK_GROUP_SHFT(_r)     RACK_NUM_BITS(_r)
  86 #define RACK_GROUP_MASK(_r)     \
  87         ( (((unsigned)1<<RACK_GROUP_BITS(_r)) - 1) << RACK_GROUP_SHFT(_r) )
  88 #define RACK_ADD_GROUP(_r, _g)  \
  89         ((_r) |= (_g) << RACK_GROUP_SHFT(_r) & RACK_GROUP_MASK(_r))
  90
  91 #define RACK_NUM_SHFT(_r)       0
  92 #define RACK_NUM_MASK(_r)       \
  93         ( (((unsigned)1<<RACK_NUM_BITS(_r)) - 1) << RACK_NUM_SHFT(_r) )
  94 #define RACK_ADD_NUM(_r, _n)    \
  95         ((_r) |= ((_n) - 1) << RACK_NUM_SHFT(_r) & RACK_NUM_MASK(_r))
  96
  97
  98 /*
  99  * Brick type definitions
 100  */
 101 #define MAX_BRICK_TYPES         256 /* brick type is stored as uchar */
 102
 103 extern char brick_types[];
 104
 105 #define MODULE_CBRICK           0
 106 #define MODULE_RBRICK           1
 107 #define MODULE_IBRICK           2
 108 #define MODULE_KBRICK           3
 109 #define MODULE_XBRICK           4
 110 #define MODULE_DBRICK           5
 111 #define MODULE_PBRICK           6
 112 #define MODULE_NBRICK           7
 113 #define MODULE_PEBRICK          8
 114 #define MODULE_PXBRICK          9
 115 #define MODULE_IXBRICK          10
 116 #define MODULE_CGBRICK          11
 117 #define MODULE_OPUSBRICK        12
 118 #define MODULE_SABRICK          13      /* TIO BringUp Brick */
 119 #define MODULE_IABRICK          14
 120 #define MODULE_PABRICK          15
 121 #define MODULE_GABRICK          16
 122 #define MODULE_OPUS_TIO         17      /* OPUS TIO Riser */
 123
 124 extern char brick_types[];
 125 extern void format_module_id(char *, moduleid_t, int);
 126
 127 #endif /* _ASM_IA64_SN_MODULE_H */