185 lines
5.7 KiB
C
185 lines
5.7 KiB
C
/*
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* atari_scsi.h -- Header file for the Atari native SCSI driver
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*
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* Copyright 1994 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
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*
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* (Loosely based on the work of Robert De Vries' team)
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*
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*/
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#ifndef ATARI_SCSI_H
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#define ATARI_SCSI_H
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/* (I_HAVE_OVERRUNS stuff removed) */
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#ifndef ASM
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int atari_scsi_detect (struct scsi_host_template *);
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const char *atari_scsi_info (struct Scsi_Host *);
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int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
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int atari_scsi_release (struct Scsi_Host *);
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/* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
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* values should work, too; try it! (but cmd_per_lun costs memory!) */
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/* But there seems to be a bug somewhere that requires CAN_QUEUE to be
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* 2*CMD_PER_LUN. At least on a TT, no spurious timeouts seen since
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* changed CMD_PER_LUN... */
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/* Note: The Falcon currently uses 8/1 setting due to unsolved problems with
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* cmd_per_lun != 1 */
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#define ATARI_TT_CAN_QUEUE 16
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#define ATARI_TT_CMD_PER_LUN 8
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#define ATARI_TT_SG_TABLESIZE SG_ALL
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#define ATARI_FALCON_CAN_QUEUE 8
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#define ATARI_FALCON_CMD_PER_LUN 1
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#define ATARI_FALCON_SG_TABLESIZE SG_NONE
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#define DEFAULT_USE_TAGGED_QUEUING 0
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#define NCR5380_implementation_fields /* none */
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#define NCR5380_read(reg) atari_scsi_reg_read( reg )
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#define NCR5380_write(reg, value) atari_scsi_reg_write( reg, value )
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#define NCR5380_intr atari_scsi_intr
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#define NCR5380_queue_command atari_scsi_queue_command
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#define NCR5380_abort atari_scsi_abort
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#define NCR5380_proc_info atari_scsi_proc_info
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#define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0)
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#define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1)
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#define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst )
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#define NCR5380_dma_xfer_len(i,cmd,phase) \
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atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
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/* former generic SCSI error handling stuff */
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#define SCSI_ABORT_SNOOZE 0
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#define SCSI_ABORT_SUCCESS 1
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#define SCSI_ABORT_PENDING 2
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#define SCSI_ABORT_BUSY 3
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#define SCSI_ABORT_NOT_RUNNING 4
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#define SCSI_ABORT_ERROR 5
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#define SCSI_RESET_SNOOZE 0
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#define SCSI_RESET_PUNT 1
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#define SCSI_RESET_SUCCESS 2
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#define SCSI_RESET_PENDING 3
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#define SCSI_RESET_WAKEUP 4
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#define SCSI_RESET_NOT_RUNNING 5
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#define SCSI_RESET_ERROR 6
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#define SCSI_RESET_SYNCHRONOUS 0x01
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#define SCSI_RESET_ASYNCHRONOUS 0x02
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#define SCSI_RESET_SUGGEST_BUS_RESET 0x04
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#define SCSI_RESET_SUGGEST_HOST_RESET 0x08
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#define SCSI_RESET_BUS_RESET 0x100
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#define SCSI_RESET_HOST_RESET 0x200
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#define SCSI_RESET_ACTION 0xff
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/* Debugging printk definitions:
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*
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* ARB -> arbitration
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* ASEN -> auto-sense
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* DMA -> DMA
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* HSH -> PIO handshake
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* INF -> information transfer
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* INI -> initialization
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* INT -> interrupt
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* LNK -> linked commands
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* MAIN -> NCR5380_main() control flow
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* NDAT -> no data-out phase
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* NWR -> no write commands
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* PIO -> PIO transfers
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* PDMA -> pseudo DMA (unused on Atari)
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* QU -> queues
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* RSL -> reselections
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* SEL -> selections
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* USL -> usleep cpde (unused on Atari)
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* LBS -> last byte sent (unused on Atari)
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* RSS -> restarting of selections
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* EXT -> extended messages
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* ABRT -> aborting and resetting
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* TAG -> queue tag handling
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* MER -> merging of consec. buffers
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*
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*/
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#define dprint(flg, format...) \
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({ \
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if (NDEBUG & (flg)) \
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printk(KERN_DEBUG format); \
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})
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#define ARB_PRINTK(format, args...) \
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dprint(NDEBUG_ARBITRATION, format , ## args)
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#define ASEN_PRINTK(format, args...) \
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dprint(NDEBUG_AUTOSENSE, format , ## args)
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#define DMA_PRINTK(format, args...) \
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dprint(NDEBUG_DMA, format , ## args)
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#define HSH_PRINTK(format, args...) \
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dprint(NDEBUG_HANDSHAKE, format , ## args)
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#define INF_PRINTK(format, args...) \
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dprint(NDEBUG_INFORMATION, format , ## args)
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#define INI_PRINTK(format, args...) \
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dprint(NDEBUG_INIT, format , ## args)
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#define INT_PRINTK(format, args...) \
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dprint(NDEBUG_INTR, format , ## args)
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#define LNK_PRINTK(format, args...) \
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dprint(NDEBUG_LINKED, format , ## args)
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#define MAIN_PRINTK(format, args...) \
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dprint(NDEBUG_MAIN, format , ## args)
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#define NDAT_PRINTK(format, args...) \
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dprint(NDEBUG_NO_DATAOUT, format , ## args)
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#define NWR_PRINTK(format, args...) \
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dprint(NDEBUG_NO_WRITE, format , ## args)
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#define PIO_PRINTK(format, args...) \
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dprint(NDEBUG_PIO, format , ## args)
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#define PDMA_PRINTK(format, args...) \
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dprint(NDEBUG_PSEUDO_DMA, format , ## args)
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#define QU_PRINTK(format, args...) \
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dprint(NDEBUG_QUEUES, format , ## args)
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#define RSL_PRINTK(format, args...) \
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dprint(NDEBUG_RESELECTION, format , ## args)
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#define SEL_PRINTK(format, args...) \
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dprint(NDEBUG_SELECTION, format , ## args)
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#define USL_PRINTK(format, args...) \
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dprint(NDEBUG_USLEEP, format , ## args)
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#define LBS_PRINTK(format, args...) \
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dprint(NDEBUG_LAST_BYTE_SENT, format , ## args)
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#define RSS_PRINTK(format, args...) \
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dprint(NDEBUG_RESTART_SELECT, format , ## args)
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#define EXT_PRINTK(format, args...) \
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dprint(NDEBUG_EXTENDED, format , ## args)
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#define ABRT_PRINTK(format, args...) \
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dprint(NDEBUG_ABORT, format , ## args)
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#define TAG_PRINTK(format, args...) \
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dprint(NDEBUG_TAGS, format , ## args)
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#define MER_PRINTK(format, args...) \
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dprint(NDEBUG_MERGING, format , ## args)
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/* conditional macros for NCR5380_print_{,phase,status} */
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#define NCR_PRINT(mask) \
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((NDEBUG & (mask)) ? NCR5380_print(instance) : (void)0)
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#define NCR_PRINT_PHASE(mask) \
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((NDEBUG & (mask)) ? NCR5380_print_phase(instance) : (void)0)
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#define NCR_PRINT_STATUS(mask) \
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((NDEBUG & (mask)) ? NCR5380_print_status(instance) : (void)0)
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#endif /* ndef ASM */
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#endif /* ATARI_SCSI_H */
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