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Annotation of 43BSD/contrib/X/libvs100/report.c, revision 1.1.1.1

1.1       root        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: }

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