Fix SCT temperature table commands on big endian CPUs.

git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@3064 4ea69e1a-61f1-4043-bf83-b5c94c648137

smartmontools/CHANGELOG

@@ -43,6 +43,8 @@ NOTES FOR FUTURE RELEASES: see TODO file.
 
 <DEVELOPERS: ADDITIONS TO THE CHANGE LOG GO JUST BELOW HERE, PLEASE>
 
+  [CF] Fix SCT temperature table commands on big endian CPUs.
+
   [MS] drivedb.h updates:
        - more Seagate Momentus 5400.6 drives
        - HP 500GB drive MM0500EANCR

smartmontools/NEWS

@@ -13,6 +13,7 @@ Summary: smartmontools release 5.40
 - Drive database is in a separate source file 'drivedb.h'
   which can be downloaded from SVN.
 - smartd libcap-ng support, option '-C, --capabilities'.
+- Fix SCT temperature table commands on big endian CPUs.
 
 Date 2010-01-28
 Summary: smartmontools release 5.39.1

smartmontools/atacmds.cpp

@@ -2214,6 +2214,13 @@ int ataReadSCTTempHist(ata_device * device, ata_sct_temperature_history_table *
   cmd.function_code = 1; // Read table
   cmd.table_id      = 2; // Temperature History Table
 
+  // swap endian order if needed
+  if (isbigendian()) {
+    swapx(&cmd.action_code);
+    swapx(&cmd.function_code);
+    swapx(&cmd.table_id);
+  }
+
   // write command via SMART log page 0xe0
   if (smartcommandhandler(device, WRITE_LOG, 0xe0, (char *)&cmd)){
     syserror("Error Write SCT Data Table command failed");
@@ -2276,6 +2283,15 @@ int ataSetSCTTempInterval(ata_device * device, unsigned interval, bool persisten
   cmd.state         = interval;
   cmd.option_flags  = (persistent ? 0x01 : 0x00);
 
+  // swap endian order if needed
+  if (isbigendian()) {
+    swapx(&cmd.action_code);
+    swapx(&cmd.function_code);
+    swapx(&cmd.feature_code);
+    swapx(&cmd.state);
+    swapx(&cmd.option_flags);
+  }
+
   // write command via SMART log page 0xe0
   if (smartcommandhandler(device, WRITE_LOG, 0xe0, (char *)&cmd)){
     syserror("Error Write SCT Feature Control Command failed");