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