Annotation of ntddk/src/scsi/qic117/gettcap.c, revision 1.1

1.1     ! root        1: /*++
        !             2: 
        !             3: Copyright (c) 1993 - Colorado Memory Systems, Inc.
        !             4: All Rights Reserved
        !             5: 
        !             6: Module Name:
        !             7: 
        !             8:     gettcap.c
        !             9: 
        !            10: Abstract:
        !            11: 
        !            12:     Gets the capacity of the tape drive (by querying the low-level
        !            13:     driver).
        !            14: 
        !            15: Revision History:
        !            16: 
        !            17: 
        !            18: 
        !            19: --*/
        !            20: 
        !            21: //
        !            22: // include files
        !            23: //
        !            24: 
        !            25: #include <ntddk.h>
        !            26: #include <ntddtape.h>
        !            27: #include "common.h"
        !            28: #include "q117.h"
        !            29: #include "protos.h"
        !            30: 
        !            31: 
        !            32: STATUS
        !            33: q117GetTapeCapacity(
        !            34:     struct S_O_DGetCap *ptr,
        !            35:     PQ117_CONTEXT Context
        !            36:     )
        !            37: 
        !            38: /*++
        !            39: 
        !            40: Routine Description:
        !            41: 
        !            42:     Get the media's capacity from q117i driver
        !            43: 
        !            44: Arguments:
        !            45: 
        !            46:     Ptr -
        !            47: 
        !            48:     Context -
        !            49: 
        !            50: 
        !            51: Return Value:
        !            52: 
        !            53: 
        !            54: --*/
        !            55: 
        !            56: {
        !            57:     struct S_O_DGetCap capacity;
        !            58:     IO_REQUEST req;
        !            59:     LONG ret;
        !            60: 
        !            61:     ret = q117DoCmd((PVOID)&req, DGetCap, (PVOID)&capacity, Context);
        !            62:     if (!ret) {
        !            63: 
        !            64:         if (ptr) {
        !            65: 
        !            66:             *ptr = capacity;
        !            67: 
        !            68:         } else {
        !            69: 
        !            70:             Context->CurrentTape.LastSegment = capacity.FormattableSegments - 1;
        !            71:             Context->CurrentTape.TapeFormatCode = capacity.TapeFormatCode;
        !            72: 
        !            73:             //
        !            74:             // If more than what can fit in the bad sector map,  then
        !            75:             // we got some real problems.
        !            76:             //
        !            77:             if ((Context->CurrentTape.LastSegment > MAX_BAD_BLOCKS) &&
        !            78:                 (Context->CurrentTape.TapeFormatCode == QIC_FORMAT)) {
        !            79: 
        !            80:                 ret = FCodeErr;
        !            81: 
        !            82:             }
        !            83: 
        !            84:             Context->drive_type = capacity.drive_type;
        !            85:         }
        !            86:     }
        !            87:     return(ret);
        !            88: }

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