mirror of https://gitee.com/openkylin/linux.git
61 lines
1.8 KiB
C
61 lines
1.8 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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/* 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_show_info atari_scsi_show_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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#endif /* ndef ASM */
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#endif /* ATARI_SCSI_H */
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