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This commit is contained in:
kudzu_cp 2011-02-15 15:18:26 +00:00
parent e4a88a6e34
commit d537e138ca
1 changed files with 9 additions and 2 deletions
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11
source2/Kernel/System/Hardware/Cosmos.Hardware/ATA.cs
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@ -64,12 +64,20 @@ namespace Cosmos.Hardware {
} }
public Status SendCmd(Cmd aCmd) { public Status SendCmd(Cmd aCmd) {
return SendCmd(aCmd, true);
}
public Status SendCmd(Cmd aCmd, bool aThrowOnError) {
IO.Command.Byte = (byte)aCmd; IO.Command.Byte = (byte)aCmd;
Status xStatus; Status xStatus;
do { do {
Wait(); Wait();
xStatus = (Status)IO.Status.Byte; xStatus = (Status)IO.Status.Byte;
} while ((xStatus & Status.Busy) != 0); } while ((xStatus & Status.Busy) != 0);
// Error occurred
if ((xStatus & Status.Error) != 0) {
// TODO: Read error port
throw new Exception("ATA Error");
}
return xStatus; return xStatus;
} }
@ -150,7 +158,6 @@ namespace Cosmos.Hardware {
public void ReadSector(bool aSlave, UInt64 aSectorNo, byte[] aData) { public void ReadSector(bool aSlave, UInt64 aSectorNo, byte[] aData) {
SelectSector(aSlave, aSectorNo, 1); SelectSector(aSlave, aSectorNo, 1);
//TODO: Update SendCmd to look for error bit
SendCmd(Cmd.ReadPio); SendCmd(Cmd.ReadPio);
IO.Data.Read16(aData); IO.Data.Read16(aData);
} }
@ -172,7 +179,7 @@ namespace Cosmos.Hardware {
public SpecLevel DiscoverDrive(bool aSlave) { public SpecLevel DiscoverDrive(bool aSlave) {
SelectDrive(aSlave); SelectDrive(aSlave);
var xIdentifyStatus = SendCmd(Cmd.Identify); var xIdentifyStatus = SendCmd(Cmd.Identify, false);
// No drive found, go to next // No drive found, go to next
if (xIdentifyStatus == Status.None) { if (xIdentifyStatus == Status.None) {
return SpecLevel.Null; return SpecLevel.Null;