2.11BSD#431 - /usr/src/sys/pdpuba/tmscpreg.h

   1: /*	@(#)tmscpreg.h	1.4	(2.11BSD) 1998/1/28 */
   2: 
   3: /****************************************************************
   4:  *								*
   5:  *        Licensed from Digital Equipment Corporation 		*
   6:  *                       Copyright (c) 				*
   7:  *               Digital Equipment Corporation			*
   8:  *                   Maynard, Massachusetts 			*
   9:  *                         1985, 1986 				*
  10:  *                    All rights reserved. 			*
  11:  *								*
  12:  *        The Information in this software is subject to change *
  13:  *   without notice and should not be construed as a commitment *
  14:  *   by  Digital  Equipment  Corporation.   Digital   makes  no *
  15:  *   representations about the suitability of this software for *
  16:  *   any purpose.  It is supplied "As Is" without expressed  or *
  17:  *   implied  warranty. 					*
  18:  *								*
  19:  *        If the Regents of the University of California or its *
  20:  *   licensees modify the software in a manner creating  	*
  21:  *   diriviative copyright rights, appropriate copyright  	*
  22:  *   legends may be placed on  the drivative work in addition   *
  23:  *   to that set forth above. 					*
  24:  *								*
  25:  ****************************************************************/
  26: 
  27: /*
  28:  * TMSCP registers and structures
  29:  */
  30: 
  31: struct tmscpdevice {
  32:     short   tmscpip;    /* initialization and polling */
  33:     short   tmscpsa;    /* status and address */
  34: };
  35: 
  36: #define TMSCP_ERR   0100000 /* error bit */
  37: #define TMSCP_STEP4 0040000 /* step 4 has started */
  38: #define TMSCP_STEP3 0020000 /* step 3 has started */
  39: #define TMSCP_STEP2 0010000 /* step 2 has started */
  40: #define TMSCP_STEP1 0004000 /* step 1 has started */
  41: #define TMSCP_NV    0002000 /* no host settable interrupt vector */
  42: #define TMSCP_QB    0001000 /* controller supports Q22 bus */
  43: #define TMSCP_DI    0000400 /* controller implements diagnostics */
  44: #define TMSCP_OD    0000200 /* port allows odd host addr's in the buffer descriptor */
  45: #define TMSCP_IE    0000200 /* interrupt enable */
  46: #define TMSCP_MP    0000100 /* port supports address mapping */
  47: #define TMSCP_LF    0000002 /* host requests last fail response packet */
  48: #define TMSCP_PI    0000001 /* host requests adapter purge interrupts */
  49: #define TMSCP_GO    0000001 /* start operation, after init */
  50: 
  51: typedef struct {        /* swap shorts for TMSCP controller */
  52:     short   lsh;
  53:     short   hsh;
  54:     } Trl;
  55: 
  56: /*
  57:  * TMSCP Communications Area
  58:  */
  59: 
  60: /*
  61:  * These defines were moved here so they could be shared between the
  62:  * driver and the crash dump module.
  63: */
  64: #ifndef NRSPL2
  65: #define NRSPL2  3   /* log2 number of response packets */
  66: #endif
  67: #ifndef NCMDL2
  68: #define NCMDL2  3   /* log2 number of command packets */
  69: #endif
  70: 
  71: #define NRSP    (1<<NRSPL2)
  72: #define NCMD    (1<<NCMDL2)
  73: #define RINGBASE    (4 * sizeof (short))
  74: /* Size to map in when mapping a controller's command packet area */
  75: #define MAPBUFDESC  (((btoc(sizeof (struct tmscp)) - 1) << 8) | RW)
  76: 
  77: struct tmscpca {
  78:     short   ca_xxx1;    /* unused */
  79:     char    ca_xxx2;    /* unused */
  80:     char    ca_bdp;     /* BDP to purge */
  81:     short   ca_cmdint;  /* command queue transition interrupt flag */
  82:     short   ca_rspint;  /* response queue transition interrupt flag */
  83:     Trl ca_rspdsc[NRSP];/* response descriptors */
  84:     Trl ca_cmddsc[NCMD];/* command descriptors */
  85: };
  86: 
  87: #define ca_ringbase ca_rspdsc[0]
  88: 
  89: #define TMSCP_OWN   0x8000  /* port owns descriptor (else host owns it) */
  90: #define TMSCP_INT   0x4000  /* allow interrupt on ring transition */

Defined struct's

Defined macros

Usage of this include