drivers/scsi/atari_scsi.h

   1 /*
   2  * atari_scsi.h -- Header file for the Atari native SCSI driver
   3  *
   4  * Copyright 1994 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
   5  *
   6  * (Loosely based on the work of Robert De Vries' team)
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file COPYING in the main directory of this archive
  10  * for more details.
  11  *
  12  */
  13
  14
  15 #ifndef ATARI_SCSI_H
  16 #define ATARI_SCSI_H
  17
  18 /* (I_HAVE_OVERRUNS stuff removed) */
  19
  20 #ifndef ASM
  21 int atari_scsi_detect (Scsi_Host_Template *);
  22 const char *atari_scsi_info (struct Scsi_Host *);
  23 int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
  24 #ifdef MODULE
  25 int atari_scsi_release (struct Scsi_Host *);
  26 #else
  27 #define atari_scsi_release NULL
  28 #endif
  29
  30 /* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
  31  * values should work, too; try it! (but cmd_per_lun costs memory!) */
  32
  33 /* But there seems to be a bug somewhere that requires CAN_QUEUE to be
  34  * 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
  35  * changed CMD_PER_LUN... */
  36
  37 /* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
  38  * cmd_per_lun != 1 */
  39
  40 #define ATARI_TT_CAN_QUEUE              16
  41 #define ATARI_TT_CMD_PER_LUN            8
  42 #define ATARI_TT_SG_TABLESIZE           SG_ALL
  43
  44 #define ATARI_FALCON_CAN_QUEUE          8
  45 #define ATARI_FALCON_CMD_PER_LUN        1
  46 #define ATARI_FALCON_SG_TABLESIZE       SG_NONE
  47
  48 #define DEFAULT_USE_TAGGED_QUEUING      0
  49
  50
  51 #define NCR5380_implementation_fields   /* none */
  52
  53 #define NCR5380_read(reg)                 atari_scsi_reg_read( reg )
  54 #define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )
  55
  56 #define NCR5380_intr atari_scsi_intr
  57 #define NCR5380_queue_command atari_scsi_queue_command
  58 #define NCR5380_abort atari_scsi_abort
  59 #define NCR5380_proc_info atari_scsi_proc_info
  60 #define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
  61 #define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
  62 #define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
  63 #define NCR5380_dma_xfer_len(i,cmd,phase) \
  64         atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
  65
  66 /* Debugging printk definitions:
  67  *
  68  *  ARB  -> arbitration
  69  *  ASEN -> auto-sense
  70  *  DMA  -> DMA
  71  *  HSH  -> PIO handshake
  72  *  INF  -> information transfer
  73  *  INI  -> initialization
  74  *  INT  -> interrupt
  75  *  LNK  -> linked commands
  76  *  MAIN -> NCR5380_main() control flow
  77  *  NDAT -> no data-out phase
  78  *  NWR  -> no write commands
  79  *  PIO  -> PIO transfers
  80  *  PDMA -> pseudo DMA (unused on Atari)
  81  *  QU   -> queues
  82  *  RSL  -> reselections
  83  *  SEL  -> selections
  84  *  USL  -> usleep cpde (unused on Atari)
  85  *  LBS  -> last byte sent (unused on Atari)
  86  *  RSS  -> restarting of selections
  87  *  EXT  -> extended messages
  88  *  ABRT -> aborting and resetting
  89  *  TAG  -> queue tag handling
  90  *  MER  -> merging of consec. buffers
  91  *
  92  */
  93
  94 #if NDEBUG & NDEBUG_ARBITRATION
  95 #define ARB_PRINTK(format, args...) \
  96         printk(KERN_DEBUG format , ## args)
  97 #else
  98 #define ARB_PRINTK(format, args...)
  99 #endif
 100 #if NDEBUG & NDEBUG_AUTOSENSE
 101 #define ASEN_PRINTK(format, args...) \
 102         printk(KERN_DEBUG format , ## args)
 103 #else
 104 #define ASEN_PRINTK(format, args...)
 105 #endif
 106 #if NDEBUG & NDEBUG_DMA
 107 #define DMA_PRINTK(format, args...) \
 108         printk(KERN_DEBUG format , ## args)
 109 #else
 110 #define DMA_PRINTK(format, args...)
 111 #endif
 112 #if NDEBUG & NDEBUG_HANDSHAKE
 113 #define HSH_PRINTK(format, args...) \
 114         printk(KERN_DEBUG format , ## args)
 115 #else
 116 #define HSH_PRINTK(format, args...)
 117 #endif
 118 #if NDEBUG & NDEBUG_INFORMATION
 119 #define INF_PRINTK(format, args...) \
 120         printk(KERN_DEBUG format , ## args)
 121 #else
 122 #define INF_PRINTK(format, args...)
 123 #endif
 124 #if NDEBUG & NDEBUG_INIT
 125 #define INI_PRINTK(format, args...) \
 126         printk(KERN_DEBUG format , ## args)
 127 #else
 128 #define INI_PRINTK(format, args...)
 129 #endif
 130 #if NDEBUG & NDEBUG_INTR
 131 #define INT_PRINTK(format, args...) \
 132         printk(KERN_DEBUG format , ## args)
 133 #else
 134 #define INT_PRINTK(format, args...)
 135 #endif
 136 #if NDEBUG & NDEBUG_LINKED
 137 #define LNK_PRINTK(format, args...) \
 138         printk(KERN_DEBUG format , ## args)
 139 #else
 140 #define LNK_PRINTK(format, args...)
 141 #endif
 142 #if NDEBUG & NDEBUG_MAIN
 143 #define MAIN_PRINTK(format, args...) \
 144         printk(KERN_DEBUG format , ## args)
 145 #else
 146 #define MAIN_PRINTK(format, args...)
 147 #endif
 148 #if NDEBUG & NDEBUG_NO_DATAOUT
 149 #define NDAT_PRINTK(format, args...) \
 150         printk(KERN_DEBUG format , ## args)
 151 #else
 152 #define NDAT_PRINTK(format, args...)
 153 #endif
 154 #if NDEBUG & NDEBUG_NO_WRITE
 155 #define NWR_PRINTK(format, args...) \
 156         printk(KERN_DEBUG format , ## args)
 157 #else
 158 #define NWR_PRINTK(format, args...)
 159 #endif
 160 #if NDEBUG & NDEBUG_PIO
 161 #define PIO_PRINTK(format, args...) \
 162         printk(KERN_DEBUG format , ## args)
 163 #else
 164 #define PIO_PRINTK(format, args...)
 165 #endif
 166 #if NDEBUG & NDEBUG_PSEUDO_DMA
 167 #define PDMA_PRINTK(format, args...) \
 168         printk(KERN_DEBUG format , ## args)
 169 #else
 170 #define PDMA_PRINTK(format, args...)
 171 #endif
 172 #if NDEBUG & NDEBUG_QUEUES
 173 #define QU_PRINTK(format, args...) \
 174         printk(KERN_DEBUG format , ## args)
 175 #else
 176 #define QU_PRINTK(format, args...)
 177 #endif
 178 #if NDEBUG & NDEBUG_RESELECTION
 179 #define RSL_PRINTK(format, args...) \
 180         printk(KERN_DEBUG format , ## args)
 181 #else
 182 #define RSL_PRINTK(format, args...)
 183 #endif
 184 #if NDEBUG & NDEBUG_SELECTION
 185 #define SEL_PRINTK(format, args...) \
 186         printk(KERN_DEBUG format , ## args)
 187 #else
 188 #define SEL_PRINTK(format, args...)
 189 #endif
 190 #if NDEBUG & NDEBUG_USLEEP
 191 #define USL_PRINTK(format, args...) \
 192         printk(KERN_DEBUG format , ## args)
 193 #else
 194 #define USL_PRINTK(format, args...)
 195 #endif
 196 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
 197 #define LBS_PRINTK(format, args...) \
 198         printk(KERN_DEBUG format , ## args)
 199 #else
 200 #define LBS_PRINTK(format, args...)
 201 #endif
 202 #if NDEBUG & NDEBUG_RESTART_SELECT
 203 #define RSS_PRINTK(format, args...) \
 204         printk(KERN_DEBUG format , ## args)
 205 #else
 206 #define RSS_PRINTK(format, args...)
 207 #endif
 208 #if NDEBUG & NDEBUG_EXTENDED
 209 #define EXT_PRINTK(format, args...) \
 210         printk(KERN_DEBUG format , ## args)
 211 #else
 212 #define EXT_PRINTK(format, args...)
 213 #endif
 214 #if NDEBUG & NDEBUG_ABORT
 215 #define ABRT_PRINTK(format, args...) \
 216         printk(KERN_DEBUG format , ## args)
 217 #else
 218 #define ABRT_PRINTK(format, args...)
 219 #endif
 220 #if NDEBUG & NDEBUG_TAGS
 221 #define TAG_PRINTK(format, args...) \
 222         printk(KERN_DEBUG format , ## args)
 223 #else
 224 #define TAG_PRINTK(format, args...)
 225 #endif
 226 #if NDEBUG & NDEBUG_MERGING
 227 #define MER_PRINTK(format, args...) \
 228         printk(KERN_DEBUG format , ## args)
 229 #else
 230 #define MER_PRINTK(format, args...)
 231 #endif
 232
 233 /* conditional macros for NCR5380_print_{,phase,status} */
 234
 235 #define NCR_PRINT(mask) \
 236         ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
 237
 238 #define NCR_PRINT_PHASE(mask) \
 239         ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
 240
 241 #define NCR_PRINT_STATUS(mask) \
 242         ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
 243
 244
 245 #endif /* ndef ASM */
 246 #endif /* ATARI_SCSI_H */
 247
 248