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kernel/linux-imx6_3.14.28/drivers/scsi/sun3_scsi.h 9.74 KB
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  /*
   * 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 <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_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
  
  #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
   *
   */
  
  #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 */