/* * Sun3 SCSI stuff by Erik Verbruggen (erik@bigmama.xtdnet.nl) * * Sun3 DMA additions by Sam Creasey (sammy@sammy.net) * * Adapted from mac_scsinew.h: */ /* * Cumana Generic NCR5380 driver defines * * Copyright 1993, Drew Eckhardt * Visionary Computing * (Unix and Linux consulting and custom programming) * drew@colorado.edu * +1 (303) 440-4894 * * ALPHA RELEASE 1. * * For more information, please consult * * NCR 5380 Family * SCSI Protocol Controller * Databook * * NCR Microelectronics * 1635 Aeroplaza Drive * Colorado Springs, CO 80916 * 1+ (719) 578-3400 * 1+ (800) 334-5454 */ /* * $Log: cumana_NCR5380.h,v $ */ #ifndef SUN3_NCR5380_H #define SUN3_NCR5380_H #define SUN3SCSI_PUBLIC_RELEASE 1 /* * Int: level 2 autovector * IO: type 1, base 0x00140000, 5 bits phys space: A<4..0> */ #define IRQ_SUN3_SCSI 2 #define IOBASE_SUN3_SCSI 0x00140000 #define IOBASE_SUN3_VMESCSI 0xff200000 static int sun3scsi_abort(struct scsi_cmnd *); static int sun3scsi_detect (struct scsi_host_template *); static const char *sun3scsi_info (struct Scsi_Host *); static int sun3scsi_bus_reset(struct scsi_cmnd *); static int sun3scsi_queue_command(struct Scsi_Host *, struct scsi_cmnd *); static int sun3scsi_release (struct Scsi_Host *); #ifndef CMD_PER_LUN #define CMD_PER_LUN 2 #endif #ifndef CAN_QUEUE #define CAN_QUEUE 16 #endif #ifndef SG_TABLESIZE #define SG_TABLESIZE SG_NONE #endif #ifndef MAX_TAGS #define MAX_TAGS 32 #endif #ifndef USE_TAGGED_QUEUING #define USE_TAGGED_QUEUING 1 #endif #include #ifdef SUN3_SCSI_VME #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI" #else #define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI" #endif #ifndef HOSTS_C #define NCR5380_implementation_fields \ int port, ctrl #define NCR5380_local_declare() \ struct Scsi_Host *_instance #define NCR5380_setup(instance) \ _instance = instance #define NCR5380_read(reg) sun3scsi_read(reg) #define NCR5380_write(reg, value) sun3scsi_write(reg, value) #define NCR5380_intr sun3scsi_intr #define NCR5380_queue_command sun3scsi_queue_command #define NCR5380_bus_reset sun3scsi_bus_reset #define NCR5380_abort sun3scsi_abort #define NCR5380_show_info sun3scsi_show_info #define NCR5380_dma_xfer_len(i, cmd, phase) \ sun3scsi_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1) #define NCR5380_dma_write_setup(instance, data, count) sun3scsi_dma_setup(data, count, 1) #define NCR5380_dma_read_setup(instance, data, count) sun3scsi_dma_setup(data, count, 0) #define NCR5380_dma_residual sun3scsi_dma_residual /* additional registers - mainly DMA control regs */ /* these start at regbase + 8 -- directly after the NCR regs */ struct sun3_dma_regs { unsigned short dma_addr_hi; /* vme only */ unsigned short dma_addr_lo; /* vme only */ unsigned short dma_count_hi; /* vme only */ unsigned short dma_count_lo; /* vme only */ unsigned short udc_data; /* udc dma data reg (obio only) */ unsigned short udc_addr; /* uda dma addr reg (obio only) */ unsigned short fifo_data; /* fifo data reg, holds extra byte on odd dma reads */ unsigned short fifo_count; unsigned short csr; /* control/status reg */ unsigned short bpack_hi; /* vme only */ unsigned short bpack_lo; /* vme only */ unsigned short ivect; /* vme only */ unsigned short fifo_count_hi; /* vme only */ }; /* ucd chip specific regs - live in dvma space */ struct sun3_udc_regs { unsigned short rsel; /* select regs to load */ unsigned short addr_hi; /* high word of addr */ unsigned short addr_lo; /* low word */ unsigned short count; /* words to be xfer'd */ unsigned short mode_hi; /* high word of channel mode */ unsigned short mode_lo; /* low word of channel mode */ }; /* addresses of the udc registers */ #define UDC_MODE 0x38 #define UDC_CSR 0x2e /* command/status */ #define UDC_CHN_HI 0x26 /* chain high word */ #define UDC_CHN_LO 0x22 /* chain lo word */ #define UDC_CURA_HI 0x1a /* cur reg A high */ #define UDC_CURA_LO 0x0a /* cur reg A low */ #define UDC_CURB_HI 0x12 /* cur reg B high */ #define UDC_CURB_LO 0x02 /* cur reg B low */ #define UDC_MODE_HI 0x56 /* mode reg high */ #define UDC_MODE_LO 0x52 /* mode reg low */ #define UDC_COUNT 0x32 /* words to xfer */ /* some udc commands */ #define UDC_RESET 0 #define UDC_CHN_START 0xa0 /* start chain */ #define UDC_INT_ENABLE 0x32 /* channel 1 int on */ /* udc mode words */ #define UDC_MODE_HIWORD 0x40 #define UDC_MODE_LSEND 0xc2 #define UDC_MODE_LRECV 0xd2 /* udc reg selections */ #define UDC_RSEL_SEND 0x282 #define UDC_RSEL_RECV 0x182 /* bits in csr reg */ #define CSR_DMA_ACTIVE 0x8000 #define CSR_DMA_CONFLICT 0x4000 #define CSR_DMA_BUSERR 0x2000 #define CSR_FIFO_EMPTY 0x400 /* fifo flushed? */ #define CSR_SDB_INT 0x200 /* sbc interrupt pending */ #define CSR_DMA_INT 0x100 /* dma interrupt pending */ #define CSR_LEFT 0xc0 #define CSR_LEFT_3 0xc0 #define CSR_LEFT_2 0x80 #define CSR_LEFT_1 0x40 #define CSR_PACK_ENABLE 0x20 #define CSR_DMA_ENABLE 0x10 #define CSR_SEND 0x8 /* 1 = send 0 = recv */ #define CSR_FIFO 0x2 /* reset fifo */ #define CSR_INTR 0x4 /* interrupt enable */ #define CSR_SCSI 0x1 #define VME_DATA24 0x3d00 // debugging printk's, taken from atari_scsi.h /* 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 * */ #include "NCR5380.h" #if NDEBUG & NDEBUG_ARBITRATION #define ARB_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define ARB_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_AUTOSENSE #define ASEN_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define ASEN_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_DMA #define DMA_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define DMA_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_HANDSHAKE #define HSH_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define HSH_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_INFORMATION #define INF_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define INF_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_INIT #define INI_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define INI_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_INTR #define INT_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define INT_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_LINKED #define LNK_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define LNK_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_MAIN #define MAIN_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define MAIN_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_NO_DATAOUT #define NDAT_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define NDAT_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_NO_WRITE #define NWR_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define NWR_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_PIO #define PIO_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define PIO_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_PSEUDO_DMA #define PDMA_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define PDMA_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_QUEUES #define QU_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define QU_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_RESELECTION #define RSL_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define RSL_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_SELECTION #define SEL_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define SEL_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_USLEEP #define USL_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define USL_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_LAST_BYTE_SENT #define LBS_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define LBS_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_RESTART_SELECT #define RSS_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define RSS_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_EXTENDED #define EXT_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define EXT_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_ABORT #define ABRT_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define ABRT_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_TAGS #define TAG_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define TAG_PRINTK(format, args...) #endif #if NDEBUG & NDEBUG_MERGING #define MER_PRINTK(format, args...) \ printk(KERN_DEBUG format , ## args) #else #define MER_PRINTK(format, args...) #endif /* 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 HOSTS_C */ #endif /* SUN3_NCR5380_H */