MEDIA
open_scsi_as_media(long bus, long device)
{
SCSI_MEDIA a;
UInt32 blockCount;
UInt32 blockSize;
if (scsi_inited == 0) {
scsi_init();
}
if (scsi_mgr.exists == 0) {
return 0;
}
a = 0;
if (DoTestUnitReady(device, bus) > 0) {
if (DoReadCapacity(device, bus, &blockCount, &blockSize) != 0) {
a = new_scsi_media();
if (a != 0) {
a->m.kind = scsi_mgr.kind;
a->m.grain = blockSize;
a->m.size_in_bytes = ((long long)blockCount) * blockSize;
a->m.do_read = read_scsi_media;
a->m.do_write = write_scsi_media;
a->m.do_close = close_scsi_media;
a->m.do_os_reload = os_reload_scsi_media;
a->bus = bus;
a->id = device;
}
}
}
return (MEDIA) a;
}
LOCAL void REGPARMS
StartNextInternalRequest (ADAPTER_PTR HA)
{
IO_REQ_PTR IReq = &HA->Ext->InternalRequest;
IO_REQ_PTR XReq;
int i;
TRACE(2, ("StartNextInternalRequest(): InUse flag == %s\n",
(HA->State.InternalReqInUse) ? "True" : "False"));
critical(HA);
while (!HA->State.InternalReqInUse
&& HA->Ext->InternalReqDeferQueue != (IO_REQ_PTR)NILL) {
HA->State.InternalReqInUse = TRUE;
XReq = HA->Ext->InternalReqDeferQueue;
uncritical(HA);
ReqTargetID(IReq) = ReqTargetID(XReq);
ReqTargetLUN(IReq) = ReqTargetLUN(XReq);
ReqDevP(IReq) = ReqDevP(XReq);
for (i=0; i<12;i++)
ReqCDB(IReq)[i] = 0;
ReqState(IReq).ReqType = ReqState(XReq).ReqType;
switch(ReqState(XReq).ReqType) {
case RTGetInfoReq:
DeviceInfo(HA);
break;
case RTAutoSenseReq:
AutoSense(HA);
break;
case RTSyncNegReq:
DoTestUnitReady(HA);
break;
default:
CompleteDeferedRequest(HA, S_REQ_REQUEST);
continue;
}
critical(HA);
}
uncritical(HA);
}
