drivers/scsi/scsi.h

   1 /*
   2  *  scsi.h Copyright (C) 1992 Drew Eckhardt
   3  *         Copyright (C) 1993, 1994, 1995, 1998, 1999 Eric Youngdale
   4  *  generic SCSI package header file by
   5  *      Initial versions: Drew Eckhardt
   6  *      Subsequent revisions: Eric Youngdale
   7  *
   8  *  <drew@colorado.edu>
   9  *
  10  *       Modified by Eric Youngdale eric@andante.org to
  11  *       add scatter-gather, multiple outstanding request, and other
  12  *       enhancements.
  13  */
  14 /*
  15  * NOTE:  this file only contains compatibility glue for old drivers.  All
  16  * these wrappers will be removed sooner or later.  For new code please use
  17  * the interfaces declared in the headers in include/scsi/
  18  */
  19
  20 #ifndef _SCSI_H
  21 #define _SCSI_H
  22
  23 #include <linux/config.h>           /* for CONFIG_SCSI_LOGGING */
  24
  25 #include <scsi/scsi_cmnd.h>
  26 #include <scsi/scsi_device.h>
  27 #include <scsi/scsi_eh.h>
  28 #include <scsi/scsi_request.h>
  29 #include <scsi/scsi_tcq.h>
  30 #include <scsi/scsi.h>
  31
  32 /*
  33  * Some defs, in case these are not defined elsewhere.
  34  */
  35 #ifndef TRUE
  36 #define TRUE 1
  37 #endif
  38 #ifndef FALSE
  39 #define FALSE 0
  40 #endif
  41
  42 struct Scsi_Host;
  43 struct scsi_cmnd;
  44 struct scsi_device;
  45 struct scsi_target;
  46 struct scatterlist;
  47
  48 /*
  49  * Legacy dma direction interfaces.
  50  *
  51  * This assumes the pci/sbus dma mapping flags have the same numercial
  52  * values as the generic dma-mapping ones.  Currently they have but there's
  53  * no way to check.  Better don't use these interfaces!
  54  */
  55 #define SCSI_DATA_UNKNOWN       (DMA_BIDIRECTIONAL)
  56 #define SCSI_DATA_WRITE         (DMA_TO_DEVICE)
  57 #define SCSI_DATA_READ          (DMA_FROM_DEVICE)
  58 #define SCSI_DATA_NONE          (DMA_NONE)
  59
  60 #define scsi_to_pci_dma_dir(scsi_dir)   ((int)(scsi_dir))
  61 #define scsi_to_sbus_dma_dir(scsi_dir)  ((int)(scsi_dir))
  62
  63 /* obsolete typedef junk. */
  64 #include "scsi_typedefs.h"
  65
  66 #endif /* _SCSI_H */