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Diffstat (limited to 'drivers/scsi/sun3_scsi.h')
| -rw-r--r-- | drivers/scsi/sun3_scsi.h | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/drivers/scsi/sun3_scsi.h b/drivers/scsi/sun3_scsi.h new file mode 100644 index 00000000000..155282b92a9 --- /dev/null +++ b/drivers/scsi/sun3_scsi.h @@ -0,0 +1,379 @@ +/* + * 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 (Scsi_Cmnd *); +static int sun3scsi_detect (Scsi_Host_Template *); +static const char *sun3scsi_info (struct Scsi_Host *); +static int sun3scsi_bus_reset(Scsi_Cmnd *); +static int sun3scsi_queue_command (Scsi_Cmnd *, void (*done)(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 <scsi/scsicam.h> + +#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_proc_info sun3scsi_proc_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 + +#define BOARD_NORMAL 0 +#define BOARD_NCR53C400 1 + +/* 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 + * + */ + + + +#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 */ + |