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Annotation of ntddk/src/scsi/qic117/waitcc.c, revision 1.1.1.1

1.1       root        1: /*++
                      2: 
                      3: Copyright (c) 1993 - Colorado Memory Systems, Inc.
                      4: All Rights Reserved
                      5: 
                      6: Module Name:
                      7: 
                      8:     waitcc.c
                      9: 
                     10: Abstract:
                     11: 
                     12:     Waits for the drive to become ready (command complete)
                     13: 
                     14: 
                     15: Revision History:
                     16: 
                     17: 
                     18: 
                     19: 
                     20: --*/
                     21: 
                     22: //
                     23: // include files
                     24: //
                     25: 
                     26: #include <ntddk.h>                        // various NT definitions
                     27: #include <ntdddisk.h>                    // disk device driver I/O control codes
                     28: #include <ntiologc.h>
                     29: #include "common.h"
                     30: #include "drvtask.h"                     // this driver's data declarations
                     31: #include "mt1defs.h"                     // this driver's data declarations
                     32: #include "mt1strc.h"                     // this driver's data declarations
                     33: #include "q117data.h"                    // this driver's data declarations
                     34: 
                     35: 
                     36: STATUS
                     37: Q117iWaitCommandComplete(
                     38:     IN PTAPE_EXTENSION TapeExtension,
                     39:     IN QIC_TIME WaitTime
                     40:     )
                     41: 
                     42: /*++
                     43: 
                     44: Routine Description:
                     45: 
                     46:     Wait a specified amount of time for the tape drive to become ready after
                     47:     executing a command.
                     48: 
                     49:         Read the Drive Status byte from the tape drive.
                     50: 
                     51:         If the drive is not ready then wait 1/2 second and try again until
                     52:         the specified time has elapsed.
                     53: 
                     54: Arguments:
                     55: 
                     56:     TapeExtension -
                     57: 
                     58:     WaitTime -
                     59: 
                     60: Return Value:
                     61: 
                     62: 
                     63: --*/
                     64: {
                     65:     STATUS retval;
                     66: 
                     67:     do {
                     68: 
                     69:         Q117iSleep(TapeExtension, mt_wt2ticks, FALSE);
                     70: 
                     71:         if ((retval = Q117iGetDriveError(TapeExtension)) != NotRdy) {
                     72: 
                     73:             return(retval);
                     74: 
                     75:         }
                     76: 
                     77:         WaitTime -= mt_wt200ms;
                     78: 
                     79:     } while (WaitTime > 0l);
                     80: 
                     81:     retval = TimeOut;
                     82: 
                     83:     if (TapeExtension->DriveParms.Status.NewCart) {
                     84: 
                     85:         retval = NewCart;
                     86: 
                     87:     }
                     88: 
                     89:     return(retval);
                     90: }
                     91: 

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