4.3BSD - /usr/src/new/X/libvs100/report.c

   1: /* $Header: report.c,v 10.3 86/02/01 15:47:36 tony Rel $ */
   2: /* report.c	routine to do a ReportStatus call to the vs
   3:  *
   4:  *	ReportStatus	Get information about the workstation
   5:  *
   6:  */
   7: 
   8: /****************************************************************************
   9:  *									    *
  10:  *  Copyright (c) 1983, 1984 by						    *
  11:  *  DIGITAL EQUIPMENT CORPORATION, Maynard, Massachusetts.		    *
  12:  *  All rights reserved.						    *
  13:  * 									    *
  14:  *  This software is furnished on an as-is basis and may be used and copied *
  15:  *  only with inclusion of the above copyright notice. This software or any *
  16:  *  other copies thereof may be provided or otherwise made available to     *
  17:  *  others only for non-commercial purposes.  No title to or ownership of   *
  18:  *  the software is hereby transferred.					    *
  19:  * 									    *
  20:  *  The information in this software is  subject to change without notice   *
  21:  *  and  should  not  be  construed as  a commitment by DIGITAL EQUIPMENT   *
  22:  *  CORPORATION.							    *
  23:  * 									    *
  24:  *  DIGITAL assumes no responsibility for the use  or  reliability of its   *
  25:  *  software on equipment which is not supplied by DIGITAL.		    *
  26:  * 									    *
  27:  *									    *
  28:  ****************************************************************************/
  29: 
  30: #include "vs100.h"
  31: 
  32: char *AllocateSpace();
  33: 
  34: /* Issue a report status.  This returns the device type and version (usually
  35:  * useless), the microcode version (also useless), a bitmap describing the
  36:  * frame buffer (very useful), a description of framebuffer memory
  37:  * that isn't mapped to the screen, a description of the program memory
  38:  * not used by the firmware (useful for caching data in the workstation),
  39:  * and a description of where to map the host Vax's memory (useful to the
  40:  * driver but not to anyone else).  There are two versions; if rom is
  41:  * 1 the rom version is used; this only works before the firmware is started
  42:  * up.  Any of the pointers may be NULL if the appropriate information
  43:  * isn't required.
  44:  */
  45: 
  46: ReportStatus (devType, devVersion, ucodeVersion, framebuffer,
  47:         freeFramebuffer, freeProgram, hostMem, rom)
  48:     int *devType, rom;
  49:     short *devVersion, *ucodeVersion;
  50:     BitMap *framebuffer;
  51:     MemArea *freeFramebuffer, *freeProgram, *hostMem;
  52: {
  53:     register ReportStatusPacket *rsp;
  54: #define h ((PacketHeader *) rsp->rsp_head)
  55: 
  56:     rsp = (ReportStatusPacket *) AllocateSpace (sizeof (ReportStatusPacket));
  57:     if (rsp == NULL) return (-1);
  58: 
  59:     /* Format the packet */
  60: 
  61:     h->ph_modifier.emptymod = 0;
  62:     h->ph_opcode = (rom ? REPORT_STATUS_ROM : REPORT_STATUS);
  63:     *(long *) h->ph_next = NULL;
  64: 
  65:     /* And send it off */
  66: 
  67:     if (WritePacket ((caddr_t) rsp) || SynchWrites()) return (-1);
  68: 
  69:     if (devType) *devType = *(long *) rsp->rsp_deviceType;
  70:     if (devVersion) *devVersion = rsp->rsp_deviceVersion;
  71:     if (ucodeVersion) *ucodeVersion = rsp->rsp_ucodeVersion;
  72:     if (framebuffer)
  73:         *framebuffer = *(BitMap *) rsp->rsp_visibleFramebuffer;
  74:     if (freeFramebuffer)
  75:         *freeFramebuffer = *(MemArea *) rsp->rsp_freeFramebuffer;
  76:     if (freeProgram)
  77:         *freeProgram = *(MemArea *) rsp->rsp_freeProgramMemory;
  78:     if (hostMem)
  79:         *hostMem = *(MemArea *) rsp->rsp_hostMemory;
  80: 
  81:     return (0);
  82: }

Defined functions

Defined macros