Added support for IOCTL_CDROM_READ_TOC.

svn path=/trunk/; revision=3505

diff --git a/reactos/drivers/storage/cdrom/cdrom.c b/reactos/drivers/storage/cdrom/cdrom.c
index af73412..a202109 100644 (file)
--- a/reactos/drivers/storage/cdrom/cdrom.c
+++ b/reactos/drivers/storage/cdrom/cdrom.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: cdrom.c,v 1.14 2002/09/08 10:22:22 chorns Exp $
+/* $Id: cdrom.c,v 1.15 2002/09/15 22:19:16 hbirr Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -512,7 +512,45 @@ CdromClassCreateDeviceObject(IN PDRIVER_OBJECT DriverObject,
   return(STATUS_SUCCESS);
 }
 
+/**********************************************************************
+ * NAME
+ *     CdromClassReadTocEntry
+ *
+ * ARGUMENTS:
+ *      DeviceObject
+ *      TrackNo
+ *      Buffer
+ *      Length
+ *
+ * RETURNS:
+ *     Status.
+ */
 
+static NTSTATUS
+CdromClassReadTocEntry(PDEVICE_OBJECT DeviceObject, UINT TrackNo, PVOID Buffer, UINT Length)
+{
+  PDEVICE_EXTENSION DeviceExtension = (PDEVICE_EXTENSION)DeviceObject->DeviceExtension;
+  SCSI_REQUEST_BLOCK Srb;
+  PCDB Cdb;
+
+  RtlZeroMemory(&Srb, sizeof(SCSI_REQUEST_BLOCK));
+  Srb.CdbLength = 10;
+  Srb.TimeOutValue = DeviceExtension->TimeOutValue;
+
+  Cdb = (PCDB)Srb.Cdb;
+  Cdb->READ_TOC.OperationCode = SCSIOP_READ_TOC;
+  Cdb->READ_TOC.StartingTrack = TrackNo;
+  Cdb->READ_TOC.Format = 0;
+  Cdb->READ_TOC.AllocationLength[0] = Length >> 8;
+  Cdb->READ_TOC.AllocationLength[1] = Length & 0xff;
+  Cdb->READ_TOC.Msf = 1;
+ 
+  return ScsiClassSendSrbSynchronous(DeviceObject,
+                                    &Srb,
+                                    Buffer,
+                                    Length,
+                                    FALSE);
+}
 
 /**********************************************************************
  * NAME                                                        EXPORTED
@@ -586,7 +624,43 @@ CdromClassDeviceControl(IN PDEVICE_OBJECT DeviceObject,
              }
          }
        break;
+      case IOCTL_CDROM_READ_TOC:
+         DPRINT("IOCTL_CDROM_READ_TOC\n");
+         if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(CDROM_TOC))
+         {
+             Status = STATUS_INFO_LENGTH_MISMATCH;
+         }
+         else
+         {
+             PCDROM_TOC TocBuffer;
+             USHORT Length;
+
+             TocBuffer = Irp->AssociatedIrp.SystemBuffer;
+
+             /* First read the lead out */
+             Length = 4 + sizeof(TRACK_DATA);
+             Status = CdromClassReadTocEntry(DeviceObject, 0xaa, TocBuffer, Length);
 
+             if (NT_SUCCESS(Status))
+             {
+                if (TocBuffer->FirstTrack == 0xaa)
+                {
+                   /* there is an empty cd */
+                   Information = Length; 
+                }
+                else
+                {
+                   /* read the toc */
+                   Length = 4 + sizeof(TRACK_DATA) * (TocBuffer->LastTrack - TocBuffer->FirstTrack + 2);
+                   Status = CdromClassReadTocEntry(DeviceObject, TocBuffer->FirstTrack, TocBuffer, Length);
+                   if (NT_SUCCESS(Status))
+                   {
+                      Information = Length;
+                   }
+                }
+             }
+         }
+         break;
       default:
        /* Call the common device control function */
        return(ScsiClassDeviceControl(DeviceObject, Irp));

diff --git a/reactos/include/ntos/cdrom.h b/reactos/include/ntos/cdrom.h
index badc7f4..3dc5c8d 100644 (file)
--- a/reactos/include/ntos/cdrom.h
+++ b/reactos/include/ntos/cdrom.h
@@ -1,4 +1,4 @@
-/* $Id: cdrom.h,v 1.1 2002/04/10 17:00:52 ekohl Exp $
+/* $Id: cdrom.h,v 1.2 2002/09/15 22:19:16 hbirr Exp $
  *
  * COPYRIGHT:    See COPYING in the top level directory
  * PROJECT:      ReactOS kernel
@@ -12,8 +12,30 @@
 #ifndef __INCLUDE_NTOS_CDROM_H
 #define __INCLUDE_NTOS_CDROM_H
 
+#define IOCTL_CDROM_READ_TOC           CTL_CODE(FILE_DEVICE_CD_ROM, 0x0000, METHOD_BUFFERED, FILE_READ_ACCESS)
+#define IOCTL_CDROM_GET_DRIVE_GEOMETRY CTL_CODE(FILE_DEVICE_CD_ROM, 0x0013, METHOD_BUFFERED, FILE_READ_ACCESS)
+
+#define MAXIMUM_NUMBER_TRACKS          100
+#define MAXIMUM_CDROM_SIZE              804
+
+typedef struct _TRACK_DATA {
+  UCHAR  Reserved;
+  UCHAR  Control : 4;
+  UCHAR  Adr : 4;
+  UCHAR  TrackNumber;
+  UCHAR  Reserved1;
+  UCHAR  Address[4];
+} TRACK_DATA, *PTRACK_DATA;
+
+typedef struct _CDROM_TOC {
+  UCHAR  Length[2];
+  UCHAR  FirstTrack;
+  UCHAR  LastTrack;
+  TRACK_DATA  TrackData[MAXIMUM_NUMBER_TRACKS];
+} CDROM_TOC, *PCDROM_TOC;
+
+#define CDROM_TOC_SIZE sizeof(CDROM_TOC)
 
-#define IOCTL_CDROM_GET_DRIVE_GEOMETRY   CTL_CODE(FILE_DEVICE_CD_ROM, 0x0013, METHOD_BUFFERED, FILE_READ_ACCESS)
 
 
 #endif /* __INCLUDE_NTOS_CDROM_H */