Propagate is-ATAPI restriction to the SCSI bus manager.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22874 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/busses/scsi/ahci/ahci_controller.cpp

@@ -330,3 +330,12 @@ AHCIController::ResetDevice(uchar targetID, uchar targetLUN)
 	return fPort[targetID]->ScsiResetDevice();
 }
 
+
+void
+AHCIController::GetRestrictions(uchar targetID, bool *isATAPI, bool *noAutoSense, uint32 *maxBlocks)
+{
+	if (!fPort[targetID])
+		return;
+
+	return fPort[targetID]->ScsiGetRestrictions(isATAPI, noAutoSense, maxBlocks);
+}

src/add-ons/kernel/busses/scsi/ahci/ahci_controller.h

@@ -23,6 +23,7 @@ public:
 	uchar		AbortRequest(scsi_ccb *request);
 	uchar		TerminateRequest(scsi_ccb *request);
 	uchar		ResetDevice(uchar targetID, uchar targetLUN);
+	void		GetRestrictions(uchar targetID, bool *isATAPI, bool *noAutoSense, uint32 *maxBlocks);
 
 	device_node_handle DeviceNode() { return fNode; }
 

src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp

@@ -772,3 +772,14 @@ AHCIPort::ScsiResetDevice()
 {
 	return SCSI_REQ_CMP;
 }
+
+	
+void
+AHCIPort::ScsiGetRestrictions(bool *isATAPI, bool *noAutoSense, uint32 *maxBlocks)
+{
+	*isATAPI = !!(fRegs->cmd & PORT_CMD_ATAPI);
+	*noAutoSense = false;
+	*maxBlocks = fUse48BitCommands ? 65536 : 256;
+	TRACE("AHCIPort::ScsiGetRestrictions port %d: isATAPI %d, noAutoSense %d, maxBlocks %lu\n",
+		fIndex, *isATAPI, *noAutoSense, *maxBlocks);
+}

src/add-ons/kernel/busses/scsi/ahci/ahci_port.h

@@ -25,6 +25,7 @@ public:
 	uchar		ScsiAbortRequest(scsi_ccb *request);
 	uchar		ScsiTerminateRequest(scsi_ccb *request);
 	uchar		ScsiResetDevice();
+	void		ScsiGetRestrictions(bool *isATAPI, bool *noAutoSense, uint32 *maxBlocks);
 
 private:
 	void		ScsiTestUnitReady(scsi_ccb *request);

src/add-ons/kernel/busses/scsi/ahci/ahci_sim.cpp

@@ -104,9 +104,7 @@ ahci_get_restrictions(scsi_sim_cookie cookie, uchar targetID, bool *isATAPI,
 {
 	TRACE("ahci_get_restrictions, cookie %p\n", cookie);
 
-	*isATAPI = false;
+	static_cast<AHCIController *>(cookie)->GetRestrictions(targetID, isATAPI, noAutoSense, maxBlocks);
-	*noAutoSense = false;
-	*maxBlocks = 256;
 }