drivers/scsi/ibmmca.h

   1 /*
   2  * Low Level Driver for the IBM Microchannel SCSI Subsystem
   3  * (Headerfile, see README.ibmmca for description of the IBM MCA SCSI-driver
   4  * For use under the GNU public license within the Linux-kernel project.
   5  */
   6
   7 #ifndef _IBMMCA_H
   8 #define _IBMMCA_H
   9
  10 #ifndef LINUX_VERSION_CODE
  11 #include <linux/version.h>
  12 #endif
  13
  14 /* Note to the Linux-toplevel-maintainers:
  15  * This file contains the unified header for all available Linux-distributions.
  16  * For reasons of maintenance, it is recommended to keep this unmodified to
  17  * be downward compatible until I no longer get any requests from people
  18  * using older kernel releases on their PS/2 machines. (23 Apr 2000, M.Lang) */
  19
  20 /* Common forward declarations for all Linux-versions: */
  21
  22 /* Interfaces to the midlevel Linux SCSI driver */
  23 extern int ibmmca_proc_info (char *, char **, off_t, int, int, int);
  24 extern int ibmmca_detect (Scsi_Host_Template *);
  25 extern int ibmmca_release (struct Scsi_Host *);
  26 extern int ibmmca_command (Scsi_Cmnd *);
  27 extern int ibmmca_queuecommand (Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
  28 extern int ibmmca_abort (Scsi_Cmnd *);
  29 extern int ibmmca_reset (Scsi_Cmnd *, unsigned int);
  30 extern int ibmmca_biosparam (Disk *, kdev_t, int *);
  31
  32 /*structure for /proc filesystem */
  33 extern struct proc_dir_entry proc_scsi_ibmmca;
  34
  35 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,75)
  36 /* Stuff for Linux >= 2.1.75: */
  37 /*
  38  * 2/8/98
  39  * Note to maintainer of IBMMCA.  Do not change this initializer back to
  40  * the old format.  Please ask eric@andante.jic.com if you have any questions
  41  * about this, but it will break things in the future.
  42  */
  43 /*initialization for Scsi_host_template type (Linux >= 2.1.75 && < 2.3.27) */
  44
  45 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,27)
  46 #define IBMMCA {                                                      \
  47           proc_dir:       &proc_scsi_ibmmca,    /*proc_dir*/          \
  48           proc_info:      ibmmca_proc_info,     /*proc info fn*/      \
  49           name:           "IBM SCSI-Subsystem", /*name*/              \
  50           detect:         ibmmca_detect,        /*detect fn*/         \
  51           release:        ibmmca_release,       /*release fn*/        \
  52           command:        ibmmca_command,       /*command fn*/        \
  53           queuecommand:   ibmmca_queuecommand,  /*queuecommand fn*/   \
  54           abort:          ibmmca_abort,         /*abort fn*/          \
  55           reset:          ibmmca_reset,         /*reset fn*/          \
  56           bios_param:     ibmmca_biosparam,     /*bios fn*/           \
  57           can_queue:      16,                   /*can_queue*/         \
  58           this_id:        7,                    /*set by detect*/     \
  59           sg_tablesize:   16,                   /*sg_tablesize*/      \
  60           cmd_per_lun:    1,                    /*cmd_per_lun*/       \
  61           unchecked_isa_dma: 0,                 /*32-Bit Busmaster */ \
  62           use_clustering: ENABLE_CLUSTERING     /*use_clustering*/    \
  63           }
  64 #else
  65 #define IBMMCA {                                                      \
  66           proc_name:      "ibmmca",             /*proc_name*/         \
  67           proc_info:      ibmmca_proc_info,     /*proc info fn*/      \
  68           name:           "IBM SCSI-Subsystem", /*name*/              \
  69           detect:         ibmmca_detect,        /*detect fn*/         \
  70           release:        ibmmca_release,       /*release fn*/        \
  71           command:        ibmmca_command,       /*command fn*/        \
  72           queuecommand:   ibmmca_queuecommand,  /*queuecommand fn*/   \
  73           abort:          ibmmca_abort,         /*abort fn*/          \
  74           reset:          ibmmca_reset,         /*reset fn*/          \
  75           bios_param:     ibmmca_biosparam,     /*bios fn*/           \
  76           can_queue:      16,                   /*can_queue*/         \
  77           this_id:        7,                    /*set by detect*/     \
  78           sg_tablesize:   16,                   /*sg_tablesize*/      \
  79           cmd_per_lun:    1,                    /*cmd_per_lun*/       \
  80           unchecked_isa_dma: 0,                 /*32-Bit Busmaster */ \
  81           use_clustering: ENABLE_CLUSTERING     /*use_clustering*/    \
  82           }
  83 #endif
  84 #else
  85 /* Stuff for Linux < 2.1.75: */
  86
  87 /*initialization for Scsi_host_template type (Linux < 2.1.75) */
  88 #define IBMMCA {                                      \
  89           NULL,                 /*next*/              \
  90           NULL,                 /*usage_count*/       \
  91           &proc_scsi_ibmmca,    /*proc_dir*/          \
  92           ibmmca_proc_info,     /*proc info fn*/      \
  93           "IBM SCSI-Subsystem", /*name*/              \
  94           ibmmca_detect,        /*detect fn*/         \
  95           ibmmca_release,       /*release fn*/        \
  96           NULL,                 /*info fn*/           \
  97           ibmmca_command,       /*command fn*/        \
  98           ibmmca_queuecommand,  /*queuecommand fn*/   \
  99           ibmmca_abort,         /*abort fn*/          \
 100           ibmmca_reset,         /*reset fn*/          \
 101           NULL,                 /*slave_attach fn*/   \
 102           ibmmca_biosparam,     /*bios fn*/           \
 103           16,                   /*can_queue*/         \
 104           7,                    /*set by detect*/     \
 105           16,                   /*sg_tablesize*/      \
 106           1,                    /*cmd_per_lun*/       \
 107           0,                    /*present*/           \
 108           0,                    /*unchecked_isa_dma*/ \
 109           ENABLE_CLUSTERING     /*use_clustering*/    \
 110         }
 111 #endif /* kernelversion selection */
 112
 113 #endif /* _IBMMCA_H */