drivers/scsi/atari_scsi.h

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 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 intatari_scsi_abort(Scsi_Cmnd *);
 22 intatari_scsi_detect(Scsi_Host_Template *);
 23 const char*atari_scsi_info(struct Scsi_Host *);
 24 intatari_scsi_queue_command(Scsi_Cmnd *,void(*done) (Scsi_Cmnd *));
 25 intatari_scsi_reset(Scsi_Cmnd *,unsigned int);
 26 intatari_scsi_proc_info(char*,char**, off_t,int,int,int);
 27 #ifdef MODULE
 28 intatari_scsi_release(struct Scsi_Host *);
 29 #else
 30 #define atari_scsi_release NULL
 31 #endif
 32
 33 /* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
 34  * values should work, too; try it! (but cmd_per_lun costs memory!) */
 35
 36 /* But there seems to be a bug somewhere that requires CAN_QUEUE to be
 37  * 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
 38  * changed CMD_PER_LUN... */
 39
 40 /* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
 41  * cmd_per_lun != 1 */
 42
 43 #define ATARI_TT_CAN_QUEUE 16
 44 #define ATARI_TT_CMD_PER_LUN 8
 45 #define ATARI_TT_SG_TABLESIZE SG_ALL
 46
 47 #define ATARI_FALCON_CAN_QUEUE 8
 48 #define ATARI_FALCON_CMD_PER_LUN 1
 49 #define ATARI_FALCON_SG_TABLESIZE SG_NONE
 50
 51 #define DEFAULT_USE_TAGGED_QUEUING 0
 52
 53
 54 #define ATARI_SCSI { proc_info: atari_scsi_proc_info, \
 55  name:"Atari native SCSI", \
 56  detect: atari_scsi_detect, \
 57  release: atari_scsi_release, \
 58  info: atari_scsi_info, \
 59  queuecommand: atari_scsi_queue_command, \
 60  abort: atari_scsi_abort, \
 61  reset: atari_scsi_reset, \
 62  can_queue: 0,/* initialized at run-time */ \
 63  this_id: 0,/* initialized at run-time */ \
 64  sg_tablesize: 0,/* initialized at run-time */ \
 65  cmd_per_lun: 0,/* initialized at run-time */ \
 66  use_clustering: DISABLE_CLUSTERING }
 67
 68 #define NCR5380_implementation_fields/* none */
 69
 70 #define NCR5380_read(reg) atari_scsi_reg_read( reg )
 71 #define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )
 72
 73 #define NCR5380_intr atari_scsi_intr
 74 #define NCR5380_queue_command atari_scsi_queue_command
 75 #define NCR5380_abort atari_scsi_abort
 76 #define NCR5380_proc_info atari_scsi_proc_info
 77 #define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
 78 #define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
 79 #define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
 80 #define NCR5380_dma_xfer_len(i,cmd,phase) \
 81  atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
 82
 83 /* Debugging printk definitions:
 84  *
 85  * ARB -> arbitration
 86  * ASEN -> auto-sense
 87  * DMA -> DMA
 88  * HSH -> PIO handshake
 89  * INF -> information transfer
 90  * INI -> initialization
 91  * INT -> interrupt
 92  * LNK -> linked commands
 93  * MAIN -> NCR5380_main() control flow
 94  * NDAT -> no data-out phase
 95  * NWR -> no write commands
 96  * PIO -> PIO transfers
 97  * PDMA -> pseudo DMA (unused on Atari)
 98  * QU -> queues
 99  * RSL -> reselections
 100  * SEL -> selections
 101  * USL -> usleep cpde (unused on Atari)
 102  * LBS -> last byte sent (unused on Atari)
 103  * RSS -> restarting of selections
 104  * EXT -> extended messages
 105  * ABRT -> aborting and resetting
 106  * TAG -> queue tag handling
 107  * MER -> merging of consec. buffers
 108  *
 109  */
 110
 111 #if NDEBUG & NDEBUG_ARBITRATION
 112 #define ARB_PRINTK(format, args...) \
 113  printk(KERN_DEBUG format , ## args)
 114 #else
 115 #define ARB_PRINTK(format, args...)
 116 #endif
 117 #if NDEBUG & NDEBUG_AUTOSENSE
 118 #define ASEN_PRINTK(format, args...) \
 119  printk(KERN_DEBUG format , ## args)
 120 #else
 121 #define ASEN_PRINTK(format, args...)
 122 #endif
 123 #if NDEBUG & NDEBUG_DMA
 124 #define DMA_PRINTK(format, args...) \
 125  printk(KERN_DEBUG format , ## args)
 126 #else
 127 #define DMA_PRINTK(format, args...)
 128 #endif
 129 #if NDEBUG & NDEBUG_HANDSHAKE
 130 #define HSH_PRINTK(format, args...) \
 131  printk(KERN_DEBUG format , ## args)
 132 #else
 133 #define HSH_PRINTK(format, args...)
 134 #endif
 135 #if NDEBUG & NDEBUG_INFORMATION
 136 #define INF_PRINTK(format, args...) \
 137  printk(KERN_DEBUG format , ## args)
 138 #else
 139 #define INF_PRINTK(format, args...)
 140 #endif
 141 #if NDEBUG & NDEBUG_INIT
 142 #define INI_PRINTK(format, args...) \
 143  printk(KERN_DEBUG format , ## args)
 144 #else
 145 #define INI_PRINTK(format, args...)
 146 #endif
 147 #if NDEBUG & NDEBUG_INTR
 148 #define INT_PRINTK(format, args...) \
 149  printk(KERN_DEBUG format , ## args)
 150 #else
 151 #define INT_PRINTK(format, args...)
 152 #endif
 153 #if NDEBUG & NDEBUG_LINKED
 154 #define LNK_PRINTK(format, args...) \
 155  printk(KERN_DEBUG format , ## args)
 156 #else
 157 #define LNK_PRINTK(format, args...)
 158 #endif
 159 #if NDEBUG & NDEBUG_MAIN
 160 #define MAIN_PRINTK(format, args...) \
 161  printk(KERN_DEBUG format , ## args)
 162 #else
 163 #define MAIN_PRINTK(format, args...)
 164 #endif
 165 #if NDEBUG & NDEBUG_NO_DATAOUT
 166 #define NDAT_PRINTK(format, args...) \
 167  printk(KERN_DEBUG format , ## args)
 168 #else
 169 #define NDAT_PRINTK(format, args...)
 170 #endif
 171 #if NDEBUG & NDEBUG_NO_WRITE
 172 #define NWR_PRINTK(format, args...) \
 173  printk(KERN_DEBUG format , ## args)
 174 #else
 175 #define NWR_PRINTK(format, args...)
 176 #endif
 177 #if NDEBUG & NDEBUG_PIO
 178 #define PIO_PRINTK(format, args...) \
 179  printk(KERN_DEBUG format , ## args)
 180 #else
 181 #define PIO_PRINTK(format, args...)
 182 #endif
 183 #if NDEBUG & NDEBUG_PSEUDO_DMA
 184 #define PDMA_PRINTK(format, args...) \
 185  printk(KERN_DEBUG format , ## args)
 186 #else
 187 #define PDMA_PRINTK(format, args...)
 188 #endif
 189 #if NDEBUG & NDEBUG_QUEUES
 190 #define QU_PRINTK(format, args...) \
 191  printk(KERN_DEBUG format , ## args)
 192 #else
 193 #define QU_PRINTK(format, args...)
 194 #endif
 195 #if NDEBUG & NDEBUG_RESELECTION
 196 #define RSL_PRINTK(format, args...) \
 197  printk(KERN_DEBUG format , ## args)
 198 #else
 199 #define RSL_PRINTK(format, args...)
 200 #endif
 201 #if NDEBUG & NDEBUG_SELECTION
 202 #define SEL_PRINTK(format, args...) \
 203  printk(KERN_DEBUG format , ## args)
 204 #else
 205 #define SEL_PRINTK(format, args...)
 206 #endif
 207 #if NDEBUG & NDEBUG_USLEEP
 208 #define USL_PRINTK(format, args...) \
 209  printk(KERN_DEBUG format , ## args)
 210 #else
 211 #define USL_PRINTK(format, args...)
 212 #endif
 213 #if NDEBUG & NDEBUG_LAST_BYTE_SENT
 214 #define LBS_PRINTK(format, args...) \
 215  printk(KERN_DEBUG format , ## args)
 216 #else
 217 #define LBS_PRINTK(format, args...)
 218 #endif
 219 #if NDEBUG & NDEBUG_RESTART_SELECT
 220 #define RSS_PRINTK(format, args...) \
 221  printk(KERN_DEBUG format , ## args)
 222 #else
 223 #define RSS_PRINTK(format, args...)
 224 #endif
 225 #if NDEBUG & NDEBUG_EXTENDED
 226 #define EXT_PRINTK(format, args...) \
 227  printk(KERN_DEBUG format , ## args)
 228 #else
 229 #define EXT_PRINTK(format, args...)
 230 #endif
 231 #if NDEBUG & NDEBUG_ABORT
 232 #define ABRT_PRINTK(format, args...) \
 233  printk(KERN_DEBUG format , ## args)
 234 #else
 235 #define ABRT_PRINTK(format, args...)
 236 #endif
 237 #if NDEBUG & NDEBUG_TAGS
 238 #define TAG_PRINTK(format, args...) \
 239  printk(KERN_DEBUG format , ## args)
 240 #else
 241 #define TAG_PRINTK(format, args...)
 242 #endif
 243 #if NDEBUG & NDEBUG_MERGING
 244 #define MER_PRINTK(format, args...) \
 245  printk(KERN_DEBUG format , ## args)
 246 #else
 247 #define MER_PRINTK(format, args...)
 248 #endif
 249
 250 /* conditional macros for NCR5380_print_{,phase,status} */
 251
 252 #define NCR_PRINT(mask) \
 253  ((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
 254
 255 #define NCR_PRINT_PHASE(mask) \
 256  ((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
 257
 258 #define NCR_PRINT_STATUS(mask) \
 259  ((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
 260
 261 #define NDEBUG_ANY 0xffffffff
 262
 263
 264 #endif/* ndef ASM */
 265 #endif/* ATARI_SCSI_H */
 266
 267