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_dbg.h>
  27 #include <scsi/scsi_device.h>
  28 #include <scsi/scsi_eh.h>
  29 #include <scsi/scsi_request.h>
  30 #include <scsi/scsi_tcq.h>
  31 #include <scsi/scsi.h>
  32
  33 /*
  34  * Some defs, in case these are not defined elsewhere.
  35  */
  36 #ifndef TRUE
  37 #define TRUE 1
  38 #endif
  39 #ifndef FALSE
  40 #define FALSE 0
  41 #endif
  42
  43 struct Scsi_Host;
  44 struct scsi_cmnd;
  45 struct scsi_device;
  46 struct scsi_target;
  47 struct scatterlist;
  48
  49 /*
  50  * Legacy dma direction interfaces.
  51  *
  52  * This assumes the pci/sbus dma mapping flags have the same numercial
  53  * values as the generic dma-mapping ones.  Currently they have but there's
  54  * no way to check.  Better don't use these interfaces!
  55  */
  56 #define SCSI_DATA_UNKNOWN       (DMA_BIDIRECTIONAL)
  57 #define SCSI_DATA_WRITE         (DMA_TO_DEVICE)
  58 #define SCSI_DATA_READ          (DMA_FROM_DEVICE)
  59 #define SCSI_DATA_NONE          (DMA_NONE)
  60
  61 #define scsi_to_pci_dma_dir(scsi_dir)   ((int)(scsi_dir))
  62 #define scsi_to_sbus_dma_dir(scsi_dir)  ((int)(scsi_dir))
  63
  64 /*
  65  * Old names for debug prettyprinting functions.
  66  */
  67 static inline void print_Scsi_Cmnd(struct scsi_cmnd *cmd)
  68 {
  69         return scsi_print_command(cmd);
  70 }
  71 static inline void print_command(unsigned char *cdb)
  72 {
  73         return __scsi_print_command(cdb);
  74 }
  75 static inline void print_sense(const char *devclass, struct scsi_cmnd *cmd)
  76 {
  77         return scsi_print_sense(devclass, cmd);
  78 }
  79 static inline void print_req_sense(const char *devclass, struct scsi_request *req)
  80 {
  81         return scsi_print_req_sense(devclass, req);
  82 }
  83 static inline void print_driverbyte(int scsiresult)
  84 {
  85         return scsi_print_driverbyte(scsiresult);
  86 }
  87 static inline void print_hostbyte(int scsiresult)
  88 {
  89         return scsi_print_hostbyte(scsiresult);
  90 }
  91 static inline void print_status(unsigned char status)
  92 {
  93         return scsi_print_status(status);
  94 }
  95 static inline int print_msg(const unsigned char *msg)
  96 {
  97         return scsi_print_msg(msg);
  98 }
  99
 100 /*
 101  * This is the crap from the old error handling code.  We have it in a special
 102  * place so that we can more easily delete it later on.
 103  */
 104 #include "scsi_obsolete.h"
 105
 106 /* obsolete typedef junk. */
 107 #include "scsi_typedefs.h"
 108
 109 #endif /* _SCSI_H */