public static ModePage_0D?DecodeModePage_0D(byte[] pageResponse)
{
if ((pageResponse?[0] &0x40) == 0x40)
{
return(null);
}
if ((pageResponse?[0] &0x3F) != 0x0D)
{
return(null);
}
if (pageResponse[1] + 2 != pageResponse.Length)
{
return(null);
}
if (pageResponse.Length < 8)
{
return(null);
}
var decoded = new ModePage_0D();
decoded.PS |= (pageResponse[0] & 0x80) == 0x80;
decoded.InactivityTimerMultiplier = (byte)(pageResponse[3] & 0xF);
decoded.SecondsPerMinute = (ushort)((pageResponse[4] << 8) + pageResponse[5]);
decoded.FramesPerSecond = (ushort)((pageResponse[6] << 8) + pageResponse[7]);
return(decoded);
}
public static string PrettifyModePage_0D(ModePage_0D?modePage)
{
if (!modePage.HasValue)
{
return(null);
}
ModePage_0D page = modePage.Value;
var sb = new StringBuilder();
sb.AppendLine("SCSI CD-ROM parameters page:");
if (page.PS)
{
sb.AppendLine("\tParameters can be saved");
}
switch (page.InactivityTimerMultiplier)
{
case 0:
sb.AppendLine("\tDrive will remain in track hold state a vendor-specified time after a seek or read");
break;
case 1:
sb.AppendLine("\tDrive will remain in track hold state 125 ms after a seek or read");
break;
case 2:
sb.AppendLine("\tDrive will remain in track hold state 250 ms after a seek or read");
break;
case 3:
sb.AppendLine("\tDrive will remain in track hold state 500 ms after a seek or read");
break;
case 4:
sb.AppendLine("\tDrive will remain in track hold state 1 second after a seek or read");
break;
case 5:
sb.AppendLine("\tDrive will remain in track hold state 2 seconds after a seek or read");
break;
case 6:
sb.AppendLine("\tDrive will remain in track hold state 4 seconds after a seek or read");
break;
case 7:
sb.AppendLine("\tDrive will remain in track hold state 8 seconds after a seek or read");
break;
case 8:
sb.AppendLine("\tDrive will remain in track hold state 16 seconds after a seek or read");
break;
case 9:
sb.AppendLine("\tDrive will remain in track hold state 32 seconds after a seek or read");
break;
case 10:
sb.AppendLine("\tDrive will remain in track hold state 1 minute after a seek or read");
break;
case 11:
sb.AppendLine("\tDrive will remain in track hold state 2 minutes after a seek or read");
break;
case 12:
sb.AppendLine("\tDrive will remain in track hold state 4 minutes after a seek or read");
break;
case 13:
sb.AppendLine("\tDrive will remain in track hold state 8 minutes after a seek or read");
break;
case 14:
sb.AppendLine("\tDrive will remain in track hold state 16 minutes after a seek or read");
break;
case 15:
sb.AppendLine("\tDrive will remain in track hold state 32 minutes after a seek or read");
break;
}
if (page.SecondsPerMinute > 0)
{
sb.AppendFormat("\tEach minute has {0} seconds", page.SecondsPerMinute).AppendLine();
}
if (page.FramesPerSecond > 0)
{
sb.AppendFormat("\tEach second has {0} frames", page.FramesPerSecond).AppendLine();
}
return(sb.ToString());
}
