/* * atari_scsi.h -- Header file for the Atari native SCSI driver * * Copyright 1994 Roman Hodek * * (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 */