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