drivers/scsi/dtc.h

   1 /*
   2  * DTC controller, taken from T128 driver by...
   3  * Copyright 1993, Drew Eckhardt
   4  *      Visionary Computing
   5  *      (Unix and Linux consulting and custom programming)
   6  *      drew@colorado.edu
   7  *      +1 (303) 440-4894
   8  *
   9  * DISTRIBUTION RELEASE 2.
  10  *
  11  * For more information, please consult
  12  *
  13  *
  14  *
  15  * and
  16  *
  17  * NCR 5380 Family
  18  * SCSI Protocol Controller
  19  * Databook
  20  *
  21  * NCR Microelectronics
  22  * 1635 Aeroplaza Drive
  23  * Colorado Springs, CO 80916
  24  * 1+ (719) 578-3400
  25  * 1+ (800) 334-5454
  26  */
  27
  28 #ifndef DTC3280_H
  29 #define DTC3280_H
  30
  31 #ifndef ASM
  32 int dtc_abort(Scsi_Cmnd *);
  33 int dtc_biosparam(Disk *, kdev_t, int*);
  34 int dtc_detect(Scsi_Host_Template *);
  35 int dtc_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
  36 int dtc_reset(Scsi_Cmnd *, unsigned int reset_flags);
  37 int dtc_proc_info (char *buffer, char **start, off_t offset,
  38                    int length, int hostno, int inout);
  39
  40 #ifndef NULL
  41 #define NULL 0
  42 #endif
  43
  44 #ifndef CMD_PER_LUN
  45 #define CMD_PER_LUN 2
  46 #endif
  47
  48 #ifndef CAN_QUEUE
  49 #define CAN_QUEUE 32
  50 #endif
  51
  52 /*
  53  * I hadn't thought of this with the earlier drivers - but to prevent
  54  * macro definition conflicts, we shouldn't define all of the internal
  55  * macros when this is being used solely for the host stub.
  56  */
  57
  58 #if defined(HOSTS_C) || defined(MODULE)
  59
  60 #define DTC3x80 {                               \
  61         name:           "DTC 3180/3280 ",       \
  62         detect:         dtc_detect,             \
  63         queuecommand:   dtc_queue_command,      \
  64         abort:          dtc_abort,              \
  65         reset:          dtc_reset,              \
  66         bios_param:     dtc_biosparam,          \
  67         can_queue:      CAN_QUEUE,              \
  68         this_id:        7,                      \
  69         sg_tablesize:   SG_ALL,                 \
  70         cmd_per_lun:    CMD_PER_LUN ,           \
  71         use_clustering: DISABLE_CLUSTERING}
  72
  73 #endif
  74
  75 #ifndef HOSTS_C
  76
  77 #define NCR5380_implementation_fields \
  78     volatile unsigned int base
  79
  80 #define NCR5380_local_declare() \
  81     volatile unsigned int base
  82
  83 #define NCR5380_setup(instance) \
  84     base = (unsigned int)(instance)->base
  85
  86 #define DTC_address(reg) (base + DTC_5380_OFFSET + reg)
  87
  88 #define dbNCR5380_read(reg)                                              \
  89     (rval=readb(DTC_address(reg)), \
  90      (((unsigned char) printk("DTC : read register %d at addr %08x is: %02x\n"\
  91     , (reg), (int)DTC_address(reg), rval)), rval ) )
  92
  93 #define dbNCR5380_write(reg, value) do {                                  \
  94     printk("DTC : write %02x to register %d at address %08x\n",         \
  95             (value), (reg), (int)DTC_address(reg));     \
  96     writeb(value, DTC_address(reg));} while(0)
  97
  98
  99 #if !(DTCDEBUG & DTCDEBUG_TRANSFER)
 100 #define NCR5380_read(reg) (readb(DTC_address(reg)))
 101 #define NCR5380_write(reg, value) (writeb(value, DTC_address(reg)))
 102 #else
 103 #define NCR5380_read(reg) (readb(DTC_address(reg)))
 104 #define xNCR5380_read(reg)                                              \
 105     (((unsigned char) printk("DTC : read register %d at address %08x\n"\
 106     , (reg), DTC_address(reg))), readb(DTC_address(reg)))
 107
 108 #define NCR5380_write(reg, value) do {                                  \
 109     printk("DTC : write %02x to register %d at address %08x\n",         \
 110             (value), (reg), (int)DTC_address(reg));     \
 111     writeb(value, DTC_address(reg));} while(0)
 112 #endif
 113
 114 #define NCR5380_intr dtc_intr
 115 #define do_NCR5380_intr do_dtc_intr
 116 #define NCR5380_queue_command dtc_queue_command
 117 #define NCR5380_abort dtc_abort
 118 #define NCR5380_reset dtc_reset
 119 #define NCR5380_proc_info dtc_proc_info
 120
 121 /* 15 12 11 10
 122    1001 1100 0000 0000 */
 123
 124 #define DTC_IRQS 0x9c00
 125
 126
 127 #endif /* else def HOSTS_C */
 128 #endif /* ndef ASM */
 129 #endif /* DTC3280_H */