nsp32.h

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# define IRQSELECT_PERR_IRQ          BIT(8)
# define IRQSELECT_BMCNTERR_IRQ      BIT(9)
# define IRQSELECT_AUTO_SCSI_SEQ_IRQ BIT(10)

#define OLD_SCSI_PHASE		0x05	/* BASE+08, IDX+05, B, R */
# define OLD_MSG  BIT(0)
# define OLD_IO   BIT(1)
# define OLD_CD   BIT(2)
# define OLD_BUSY BIT(3)

#define FIFO_FULL_SHLD_COUNT	0x06	/* BASE+08, IDX+06, B, R/W */
#define FIFO_EMPTY_SHLD_COUNT	0x07	/* BASE+08, IDX+07, B, R/W */

#define EXP_ROM_CONTROL		0x08	/* BASE+08, IDX+08, B, R/W */ /* external ROM control */
# define ROM_WRITE_ENB BIT(0)
# define IO_ACCESS_ENB BIT(1)
# define ROM_ADR_CLEAR BIT(2)

#define EXP_ROM_ADR		0x09	/* BASE+08, IDX+09, W, R/W */

#define EXP_ROM_DATA		0x0a	/* BASE+08, IDX+0a, B, R/W */

#define CHIP_MODE		0x0b	/* BASE+08, IDX+0b, B, R   */ /* NinjaSCSI-32Bi only */
# define OEM0 BIT(1)  /* OEM select */ /* 00=I-O DATA, 01=KME, 10=Workbit, 11=Ext ROM */
# define OEM1 BIT(2)  /* OEM select */
# define OPTB BIT(3)  /* KME mode select */
# define OPTC BIT(4)  /* KME mode select */
# define OPTD BIT(5)  /* KME mode select */
# define OPTE BIT(6)  /* KME mode select */
# define OPTF BIT(7)  /* Power management */

#define MISC_WR			0x0c	/* BASE+08, IDX+0c, W, R/W */
#define MISC_RD			0x0c
# define SCSI_DIRECTION_DETECTOR_SELECT BIT(0)
# define SCSI2_HOST_DIRECTION_VALID	BIT(1)	/* Read only */
# define HOST2_SCSI_DIRECTION_VALID	BIT(2)	/* Read only */
# define DELAYED_BMSTART                BIT(3)
# define MASTER_TERMINATION_SELECT      BIT(4)
# define BMREQ_NEGATE_TIMING_SEL        BIT(5)
# define AUTOSEL_TIMING_SEL             BIT(6)
# define MISC_MABORT_MASK		BIT(7)
# define BMSTOP_CHANGE2_NONDATA_PHASE	BIT(8)

#define BM_CYCLE		0x0d	/* BASE+08, IDX+0d, B, R/W */
# define BM_CYCLE0		 BIT(0)
# define BM_CYCLE1		 BIT(1)
# define BM_FRAME_ASSERT_TIMING	 BIT(2)
# define BM_IRDY_ASSERT_TIMING	 BIT(3)
# define BM_SINGLE_BUS_MASTER	 BIT(4)
# define MEMRD_CMD0              BIT(5)
# define SGT_AUTO_PARA_MEMED_CMD BIT(6)
# define MEMRD_CMD1              BIT(7)


#define SREQ_EDGH		0x0e	/* BASE+08, IDX+0e, B, W */
# define SREQ_EDGH_SELECT BIT(0)

#define UP_CNT			0x0f	/* BASE+08, IDX+0f, B, W */
# define REQCNT_UP  BIT(0)
# define ACKCNT_UP  BIT(1)
# define BMADR_UP   BIT(4)
# define BMCNT_UP   BIT(5)
# define SGT_CNT_UP BIT(7)

#define CFG_CMD_STR		0x10	/* BASE+08, IDX+10, W, R */
#define CFG_LATE_CACHE		0x11	/* BASE+08, IDX+11, W, R/W */
#define CFG_BASE_ADR_1		0x12	/* BASE+08, IDX+12, W, R */
#define CFG_BASE_ADR_2		0x13	/* BASE+08, IDX+13, W, R */
#define CFG_INLINE		0x14	/* BASE+08, IDX+14, W, R */

#define SERIAL_ROM_CTL		0x15	/* BASE+08, IDX+15, B, R */
# define SCL BIT(0)
# define ENA BIT(1)
# define SDA BIT(2)

#define FIFO_HST_POINTER	0x16	/* BASE+08, IDX+16, B, R/W */
#define SREQ_DELAY		0x17	/* BASE+08, IDX+17, B, R/W */
#define SACK_DELAY		0x18	/* BASE+08, IDX+18, B, R/W */
#define SREQ_NOISE_CANCEL	0x19	/* BASE+08, IDX+19, B, R/W */
#define SDP_NOISE_CANCEL	0x1a	/* BASE+08, IDX+1a, B, R/W */
#define DELAY_TEST		0x1b	/* BASE+08, IDX+1b, B, R/W */
#define SD0_NOISE_CANCEL	0x20	/* BASE+08, IDX+20, B, R/W */
#define SD1_NOISE_CANCEL	0x21	/* BASE+08, IDX+21, B, R/W */
#define SD2_NOISE_CANCEL	0x22	/* BASE+08, IDX+22, B, R/W */
#define SD3_NOISE_CANCEL	0x23	/* BASE+08, IDX+23, B, R/W */
#define SD4_NOISE_CANCEL	0x24	/* BASE+08, IDX+24, B, R/W */
#define SD5_NOISE_CANCEL	0x25	/* BASE+08, IDX+25, B, R/W */
#define SD6_NOISE_CANCEL	0x26	/* BASE+08, IDX+26, B, R/W */
#define SD7_NOISE_CANCEL	0x27	/* BASE+08, IDX+27, B, R/W */


/*
 * Useful Bus Monitor status combinations.
 */
#define BUSMON_BUS_FREE    0
#define BUSMON_COMMAND     ( BUSMON_BSY |                          BUSMON_CD | BUSMON_REQ )
#define BUSMON_MESSAGE_IN  ( BUSMON_BSY | BUSMON_MSG | BUSMON_IO | BUSMON_CD | BUSMON_REQ )
#define BUSMON_MESSAGE_OUT ( BUSMON_BSY | BUSMON_MSG |             BUSMON_CD | BUSMON_REQ )
#define BUSMON_DATA_IN     ( BUSMON_BSY |              BUSMON_IO |             BUSMON_REQ )
#define BUSMON_DATA_OUT    ( BUSMON_BSY |                                      BUSMON_REQ )
#define BUSMON_STATUS      ( BUSMON_BSY |              BUSMON_IO | BUSMON_CD | BUSMON_REQ )
#define BUSMON_RESELECT    (                           BUSMON_IO                          | BUSMON_SEL)
#define BUSMON_PHASE_MASK  (              BUSMON_MSG | BUSMON_IO | BUSMON_CD              | BUSMON_SEL)

#define BUSPHASE_COMMAND     ( BUSMON_COMMAND     & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_IN  ( BUSMON_MESSAGE_IN  & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_OUT ( BUSMON_MESSAGE_OUT & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_IN     ( BUSMON_DATA_IN     & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_OUT    ( BUSMON_DATA_OUT    & BUSMON_PHASE_MASK )
#define BUSPHASE_STATUS      ( BUSMON_STATUS      & BUSMON_PHASE_MASK )
#define BUSPHASE_SELECT      ( BUSMON_SEL | BUSMON_IO )


/************************************************************************
 * structure for DMA/Scatter Gather list
 */
#define NSP32_SG_SIZE		SG_ALL

typedef struct _nsp32_sgtable {
	/* values must be little endian */
	u32_le addr; /* transfer address */
	u32_le len;  /* transfer length. BIT(31) is for SGT_END mark */
} __attribute__ ((packed)) nsp32_sgtable;

typedef struct _nsp32_sglun {
	nsp32_sgtable sgt[NSP32_SG_SIZE+1];	/* SG table */
} __attribute__ ((packed)) nsp32_sglun;
#define NSP32_SG_TABLE_SIZE (sizeof(nsp32_sgtable) * NSP32_SG_SIZE * MAX_TARGET * MAX_LUN)

/* Auto parameter mode memory map.   */
/* All values must be little endian. */
typedef struct _nsp32_autoparam {
	u8     cdb[4 * 0x10];    /* SCSI Command                      */
	u32_le msgout;           /* outgoing messages                 */
	u8     syncreg;          /* sync register value               */
	u8     ackwidth;         /* ack width register value          */
	u8     target_id;        /* target/host device id             */
	u8     sample_reg;       /* hazard killer sampling rate       */
	u16_le command_control;  /* command control register          */
	u16_le transfer_control; /* transfer control register         */
	u32_le sgt_pointer;      /* SG table physical address for DMA */
	u32_le dummy[2];
} __attribute__ ((packed)) nsp32_autoparam;  /* must be packed struct */

/*
 * host data structure
 */
/* message in/out buffer */
#define MSGOUTBUF_MAX		20
#define MSGINBUF_MAX		20

/* flag for trans_method */
#define NSP32_TRANSFER_BUSMASTER	BIT(0)
#define NSP32_TRANSFER_MMIO		BIT(1)	/* Not supported yet */
#define NSP32_TRANSFER_PIO		BIT(2)	/* Not supported yet */


/*
 * structure for connected LUN dynamic data
 *
 * Note: Currently tagged queuing is disabled, each nsp32_lunt holds
 *       one SCSI command and one state.
 */
#define DISCPRIV_OK		BIT(0)		/* DISCPRIV Enable mode */
#define MSGIN03			BIT(1)		/* Auto Msg In 03 Flag  */

typedef struct _nsp32_lunt {
	Scsi_Cmnd	*SCpnt;	    /* Current Handling Scsi_Cmnd */
	unsigned long	 save_datp;  /* Save Data Pointer - saved position from initial address */
	int		 msgin03;	/* auto msg in 03 flag     */
	unsigned int	 sg_num;	/* Total number of SG entries */
	int		 cur_entry;	/* Current SG entry number */
	nsp32_sglun     *sglun;		/* sg table per lun        */
	dma_addr_t       sglun_paddr;   /* sglun physical address  */
} nsp32_lunt;


/*
 * SCSI TARGET/LUN definition
 */
#define NSP32_HOST_SCSIID    7  /* SCSI initiator is everytime defined as 7 */
#define MAX_TARGET	     8
#define MAX_LUN		     8	/* XXX: In SPI3, max number of LUN is 64. */


typedef struct _nsp32_sync_table {
	unsigned char	period_num;	/* period number                  */
	unsigned char	ackwidth;	/* ack width designated by period */
	unsigned char	start_period;	/* search range - start period    */
	unsigned char	end_period;	/* search range - end period      */
	unsigned char   sample_rate;    /* hazard killer parameter        */
} nsp32_sync_table;


/*
 * structure for target device static data
 */
/* flag for nsp32_target.sync_flag */
#define SDTR_INITIATOR	  BIT(0)    /* sending SDTR from initiator        */
#define SDTR_TARGET	  BIT(1)    /* sending SDTR from target           */
#define SDTR_DONE	  BIT(2)    /* exchanging SDTR has been processed */

/* syncronous period value for nsp32_target.config_max */
#define FAST5M			0x32
#define FAST10M			0x19
#define ULTRA20M		0x0c

/* flag for nsp32_target.{sync_offset}, period */
#define ASYNC_OFFSET		0	/* asynchronous transfer           */
#define SYNC_OFFSET		0xf	/* synchronous transfer max offset */

/* syncreg:
  bit:07 06 05 04 03 02 01 00
      ---PERIOD-- ---OFFSET--   */
#define TO_SYNCREG(period, offset) (((period) & 0x0f) << 4 | ((offset) & 0x0f))

typedef struct _nsp32_target {
	unsigned char	syncreg;	/* value for SYNCREG   */
	unsigned char	ackwidth;	/* value for ACKWIDTH  */
	unsigned char   period;         /* sync period (0-255) */
	unsigned char	offset;		/* sync offset (0-15)  */
	int		sync_flag;	/* SDTR_*, 0           */
	int		limit_entry;	/* max speed limit entry designated
					   by EEPROM configuration */
	unsigned char   sample_reg;     /* SREQ hazard killer register */
} nsp32_target;

typedef struct _nsp32_hw_data {
	int           IrqNumber;
	int           BaseAddress;
	int           NumAddress;
	unsigned long MmioAddress;
#define NSP32_MMIO_OFFSET 0x0800
	unsigned long MmioLength;

	Scsi_Cmnd *CurrentSC;

	struct pci_dev             *Pci;
	const struct pci_device_id *pci_devid;
	struct Scsi_Host           *Host;
	spinlock_t                  Lock;

	char info_str[100];

	/* allocated memory region */
	nsp32_sglun      *sg_list;	/* sglist virtuxal address         */
	dma_addr_t	  sg_paddr;     /* physical address of hw_sg_table */
	nsp32_autoparam  *autoparam;	/* auto parameter transfer region  */
	dma_addr_t	  auto_paddr;	/* physical address of autoparam   */
	int 		  cur_entry;	/* current sgt entry               */

	/* target/LUN */
	nsp32_lunt       *cur_lunt;	/* Current connected LUN table */
	nsp32_lunt        lunt[MAX_TARGET][MAX_LUN];  /* All LUN table */

	nsp32_target     *cur_target;	/* Current connected SCSI ID    */
	nsp32_target	  target[MAX_TARGET];	     /* SCSI ID */
	int		  cur_id;	/* Current connected target ID  */
	int		  cur_lun;	/* Current connected target LUN */

	/* behavior setting parameters */
	int		  trans_method;	/* transfer method flag            */
	int		  resettime;	/* Reset time                      */
	int 		  clock;       	/* clock dividing flag             */
	nsp32_sync_table *synct;	/* sync_table determined by clock  */
	int		  syncnum;	/* the max number of synct element */

	/* message buffer */
	unsigned char msgoutbuf[MSGOUTBUF_MAX]; /* msgout buffer    */
	char	      msgout_len;		/* msgoutbuf length */
	unsigned char msginbuf [MSGINBUF_MAX];	/* megin buffer     */
	char	      msgin_len;		/* msginbuf length  */

#ifdef CONFIG_PM
	u32           PciState[16];     /* save PCI state to this area */
#endif
} nsp32_hw_data;

/*
 * TIME definition
 */
#define RESET_HOLD_TIME		10000	/* reset time in us (SCSI-2 says the
					   minimum is 25us) */
#define SEL_TIMEOUT_TIME	10000	/* 250ms defined in SCSI specification
					   (25.6us/1unit) */
#define ARBIT_TIMEOUT_TIME	100	/* 100us */
#define REQSACK_TIMEOUT_TIME	10000	/* max wait time for REQ/SACK assertion
					   or negation, 10000us == 10ms */

/**************************************************************************
 * Compatibility functions
 */

/* for Kernel 2.4 */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
# define scsi_register_host(template) 	scsi_register_module(MODULE_SCSI_HA, template)
# define scsi_unregister_host(template) scsi_unregister_module(MODULE_SCSI_HA, template)
# define scsi_host_put(host)            scsi_unregister(host)
# define pci_name(pci_dev)              ((pci_dev)->slot_name)

typedef void irqreturn_t;
# define IRQ_NONE      /* */
# define IRQ_HANDLED   /* */
# define IRQ_RETVAL(x) /* */

/* This is ad-hoc version of scsi_host_get_next() */
static inline struct Scsi_Host *scsi_host_get_next(struct Scsi_Host *host)
{
	if (host == NULL) {
		return scsi_hostlist;
	} else {
		return host->next;
	}
}

/* This is ad-hoc version of scsi_host_hn_get() */
static inline struct Scsi_Host *scsi_host_hn_get(unsigned short hostno)
{
	struct Scsi_Host *host;

	for (host = scsi_host_get_next(NULL); host != NULL;
	     host = scsi_host_get_next(host)) {
		if (host->host_no == hostno) {
			break;
		}
	}

	return host;
}
#endif

#endif /* _NSP32_H */
/* end */