122 lines
3.0 KiB
C
122 lines
3.0 KiB
C
/*****************************************************************************
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*
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* COPYRIGHT 1993 - COLORADO MEMORY SYSTEMS, INC.
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* ALL RIGHTS RESERVED.
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*
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******************************************************************************
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*
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* FILE: \SE\DRIVER\DEVICE\JUMBO\SRC\0X11003.C
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*
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* FUNCTION: cqd_ChangeTrack
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*
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* PURPOSE: Position the tape drive head to a new track.
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*
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* HISTORY:
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* $Log: J:\se.vcs\driver\q117cd\src\0x11003.c $
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*
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* Rev 1.4 17 Feb 1994 11:42:56 KEVINKES
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* Added an extra parameter to WaitCC.
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*
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* Rev 1.3 13 Dec 1993 16:00:00 KEVINKES
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* Cleaned up and commented code. Added call to AtLogicalBot.
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*
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* Rev 1.2 08 Nov 1993 14:01:10 KEVINKES
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* Removed all bit-field structures, removed all enumerated types, changed
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* all defines to uppercase, and removed all signed data types wherever
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* possible.
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*
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* Rev 1.1 25 Oct 1993 14:34:42 KEVINKES
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* Changed kdi_wt2ticks to kdi_wt004ms.
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*
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* Rev 1.0 18 Oct 1993 17:21:12 KEVINKES
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* Initial Revision.
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*
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*****************************************************************************/
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#define FCT_ID 0x11003
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#include "include\public\adi_api.h"
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#include "include\public\frb_api.h"
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#include "include\private\kdi_pub.h"
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#include "include\private\cqd_pub.h"
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#include "q117cd\include\cqd_defs.h"
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#include "q117cd\include\cqd_strc.h"
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#include "q117cd\include\cqd_hdr.h"
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/*endinclude*/
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dStatus cqd_ChangeTrack
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(
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/* INPUT PARAMETERS: */
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CqdContextPtr cqd_context,
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dUWord destination_track
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/* UPDATE PARAMETERS: */
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/* OUTPUT PARAMETERS: */
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)
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/* COMMENTS: ***************************************************************
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*
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* Stop the tape. Send the seek track command. Then send the destination
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* track in n+2 format. Wait for the track change to complete, and then
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* set the current segment if at the end of track.
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*
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* DEFINITIONS: *************************************************************/
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{
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/* DATA: ********************************************************************/
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dStatus status; /* dStatus or error condition.*/
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/* CODE: ********************************************************************/
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if ((status = cqd_StopTape(cqd_context)) != DONT_PANIC) {
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return status;
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}
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if ((status = cqd_SendByte(cqd_context, FW_CMD_SEEK_TRACK)) != DONT_PANIC) {
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return status;
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}
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kdi_Sleep(cqd_context->kdi_context, INTERVAL_CMD, dFALSE);
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if ((status = cqd_SendByte(cqd_context,
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(dUByte)(destination_track + CMD_OFFSET))) != DONT_PANIC) {
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return status;
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}
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if ((status = cqd_WaitCommandComplete(
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cqd_context,
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INTERVAL_TRK_CHANGE,
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dFALSE)) != DONT_PANIC) {
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return status;
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}
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cqd_context->operation_status.current_track = destination_track;
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if (cqd_context->rd_wr_op.bot ||
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cqd_context->rd_wr_op.eot) {
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if (cqd_AtLogicalBOT(cqd_context)) {
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cqd_context->operation_status.current_segment = 0;
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} else {
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cqd_context->operation_status.current_segment =
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cqd_context->tape_cfg.seg_tape_track;
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}
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}
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return DONT_PANIC;
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}
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