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diff --git a/mtxl.c b/mtxl.c
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index 3ae77a6..12ea157 100644
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--- a/mtxl.c
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+++ b/mtxl.c
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@@ -39,6 +39,9 @@
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/* zap the following define when we finally add real import/export support */
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#define IMPORT_EXPORT_HACK 1 /* for the moment, import/export == storage */
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+/* only so many element per SCSI Read Element Status */
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+#define SCSI_RES_ELEMENTS 5000
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+
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/* First, do some SCSI routines: */
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/* the camlib is used on FreeBSD. */
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@@ -1055,7 +1058,7 @@ static void ParseElementStatus( int *EmptyStorageElementAddress,
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ElementStatus->DataTransferElementSourceStorageElementNumber[ElementStatus->DataTransferElementCount] =
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BigEndian16(TransportElementDescriptor->SourceStorageElementAddress);
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-#if DEBUG
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+#ifdef DEBUG
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fprintf(stderr, "%d: ElementAddress = %d, Full = %d, SourceElement = %d\n",
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ElementStatus->DataTransferElementCount,
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ElementStatus->DataTransferElementAddress[ElementStatus->DataTransferElementCount],
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@@ -1141,6 +1144,7 @@ ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *
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int empty_idx = 0;
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boolean is_attached = false;
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int i,j;
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+ int FirstElem, NumElements, NumThisRES;
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ElementModeSense_T *mode_sense = NULL;
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@@ -1205,35 +1209,46 @@ ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *
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{
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#ifdef DEBUG
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fprintf(stderr,"Using original element status polling method (storage, import/export, drivers etc independantly)\n");
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+ fprintf(stderr,"Storage start %d, Num %d, max %d\n", mode_sense->StorageStart, mode_sense->NumStorage - mode_sense->NumImportExport, mode_sense->MaxReadElementStatusData);
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#endif
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flags->elementtype = StorageElement; /* sigh! */
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- DataBuffer = SendElementStatusRequest( MediumChangerFD, RequestSense,
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+
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+ NumElements = mode_sense->NumStorage - mode_sense->NumImportExport;
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+ FirstElem = mode_sense->StorageStart;
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+
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+ do
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+ {
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+ NumThisRES = (NumElements > SCSI_RES_ELEMENTS ? SCSI_RES_ELEMENTS : NumElements);
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+ DataBuffer = SendElementStatusRequest( MediumChangerFD, RequestSense,
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inquiry_info, flags,
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- mode_sense->StorageStart,
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+ FirstElem,
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/* adjust for import/export. */
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- mode_sense->NumStorage - mode_sense->NumImportExport,
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- mode_sense->MaxReadElementStatusData);
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+ NumThisRES,
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+ SCSI_RES_ELEMENTS * 52 +120);
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- if (!DataBuffer)
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- {
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+ if (!DataBuffer)
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+ {
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#ifdef DEBUG
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- fprintf(stderr,"Had no elements!\n");
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+ fprintf(stderr,"Had no elements!\n");
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#endif
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- /* darn. Free up stuff and return. */
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+ /* darn. Free up stuff and return. */
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#ifdef DEBUG_MODE_SENSE
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- PrintRequestSense(RequestSense);
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+ PrintRequestSense(RequestSense);
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#endif
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- FreeElementData(ElementStatus);
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- return NULL;
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- }
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+ FreeElementData(ElementStatus);
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+ return NULL;
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+ }
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#ifdef DEBUG
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- fprintf(stderr, "Parsing storage elements\n");
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+ fprintf(stderr, "Parsing storage elements\n");
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#endif
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- ParseElementStatus(EmptyStorageElementAddress, &EmptyStorageElementCount,
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- DataBuffer,ElementStatus,mode_sense,NULL);
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+ ParseElementStatus(EmptyStorageElementAddress, &EmptyStorageElementCount,
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+ DataBuffer,ElementStatus,mode_sense,NULL);
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- free(DataBuffer); /* sigh! */
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+ free(DataBuffer); /* sigh! */
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+ FirstElem += SCSI_RES_ELEMENTS;
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+ NumElements -= SCSI_RES_ELEMENTS;
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+ } while ( NumElements > 0 );
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/* --------------IMPORT/EXPORT--------------- */
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/* Next let's see if we need to do Import/Export: */
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@@ -1247,8 +1262,7 @@ ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *
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inquiry_info, flags,
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mode_sense->ImportExportStart,
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mode_sense->NumImportExport,
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- mode_sense->MaxReadElementStatusData);
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-
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+ SCSI_RES_ELEMENTS * 52 +120);
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if (!DataBuffer)
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{
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#ifdef DEBUG
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@@ -1283,7 +1297,7 @@ ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *
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inquiry_info, flags,
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mode_sense->DataTransferStart,
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mode_sense->NumDataTransfer,
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- mode_sense->MaxReadElementStatusData);
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+ SCSI_RES_ELEMENTS * 52 +120);
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if (!DataBuffer)
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{
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#ifdef DEBUG
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@@ -1322,7 +1336,7 @@ ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *
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inquiry_info, flags,
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mode_sense->MediumTransportStart,
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1, /* only get 1, sigh. */
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- mode_sense->MaxReadElementStatusData);
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+ SCSI_RES_ELEMENTS * 52 +120);
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if (!DataBuffer)
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{
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#ifdef DEBUG
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