add has_sat_pass_through() check function

git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@2212 4ea69e1a-61f1-4043-bf83-b5c94c648137

sm5/scsiata.c

@@ -45,7 +45,7 @@
 #include "scsiata.h"
 #include "utility.h"
 
-const char *scsiata_c_cvsid="$Id: scsiata.c,v 1.5 2006/06/13 14:38:50 dpgilbert Exp $"
+const char *scsiata_c_cvsid="$Id: scsiata.c,v 1.6 2006/07/01 21:30:04 dpgilbert Exp $"
 CONFIG_H_CVSID EXTERN_H_CVSID INT64_H_CVSID SCSICMDS_H_CVSID SCSIATA_H_CVSID UTILITY_H_CVSID;
 
 /* for passing global control variables */
@@ -373,6 +373,21 @@ int sat_command_interface(int device, smart_command_set command, int select,
     return 0;
 }
 
+/* Attempt an IDENTIFY DEVICE ATA command via SATL when packet_interface
+   is 0 otherwise attempt IDENTIFY PACKET DEVICE. If successful
+   return 1, else 0 */
+int has_sat_pass_through(int device, int packet_interface)
+{
+    char data[512];
+    smart_command_set command;
+
+    command = packet_interface ? PIDENTIFY : IDENTIFY;
+    if (0 == sat_command_interface(device, command, 0, data))
+        return 1;
+    else
+        return 0;
+}
+
 /* Next two functions are borrowed from sg_lib.c in the sg3_utils
    package. Same copyrght owner, same license as this file. */
 int sg_scsi_normalize_sense(const unsigned char * sensep, int sb_len,

sm5/scsiata.cpp

@@ -45,7 +45,7 @@
 #include "scsiata.h"
 #include "utility.h"
 
-const char *scsiata_c_cvsid="$Id: scsiata.cpp,v 1.5 2006/06/13 14:38:50 dpgilbert Exp $"
+const char *scsiata_c_cvsid="$Id: scsiata.cpp,v 1.6 2006/07/01 21:30:04 dpgilbert Exp $"
 CONFIG_H_CVSID EXTERN_H_CVSID INT64_H_CVSID SCSICMDS_H_CVSID SCSIATA_H_CVSID UTILITY_H_CVSID;
 
 /* for passing global control variables */
@@ -373,6 +373,21 @@ int sat_command_interface(int device, smart_command_set command, int select,
     return 0;
 }
 
+/* Attempt an IDENTIFY DEVICE ATA command via SATL when packet_interface
+   is 0 otherwise attempt IDENTIFY PACKET DEVICE. If successful
+   return 1, else 0 */
+int has_sat_pass_through(int device, int packet_interface)
+{
+    char data[512];
+    smart_command_set command;
+
+    command = packet_interface ? PIDENTIFY : IDENTIFY;
+    if (0 == sat_command_interface(device, command, 0, data))
+        return 1;
+    else
+        return 0;
+}
+
 /* Next two functions are borrowed from sg_lib.c in the sg3_utils
    package. Same copyrght owner, same license as this file. */
 int sg_scsi_normalize_sense(const unsigned char * sensep, int sb_len,

sm5/scsiata.h

@@ -20,7 +20,7 @@
 #ifndef SCSIATA_H_
 #define SCSIATA_H_
 
-#define SCSIATA_H_CVSID "$Id: scsiata.h,v 1.1 2006/06/08 03:09:30 dpgilbert Exp $\n"
+#define SCSIATA_H_CVSID "$Id: scsiata.h,v 1.2 2006/07/01 21:29:31 dpgilbert Exp $\n"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -35,6 +35,11 @@
 extern int sat_command_interface(int device, smart_command_set command,
                                  int select, char *data);
 
+/* Attempt an IDENTIFY DEVICE ATA command via SATL when packet_interface
+   is 0 otherwise attempt IDENTIFY PACKET DEVICE. If successful
+   return 1, else 0 */
+extern int has_sat_pass_through(int device, int packet_interface);
+
 /* This is a slightly stretched SCSI sense "descriptor" format header.
    The addition is to allow the 0x70 and 0x71 response codes. The idea
    is to place the salient data of both "fixed" and "descriptor" sense