380 lines
9.7 KiB
C
380 lines
9.7 KiB
C
|
/*
|
||
|
|
* 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 */
|
||
|
|
|