sim710.h
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上传日期:2013-02-24
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- #ifndef _SIM710_H
- #define _SIM710_H
- /*
- * sim710.h - Copyright (C) 1999 Richard Hirst
- */
- #include <linux/types.h>
- int sim710_detect(Scsi_Host_Template *);
- int sim710_command(Scsi_Cmnd *);
- int sim710_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
- int sim710_abort(Scsi_Cmnd * SCpnt);
- int sim710_bus_reset(Scsi_Cmnd * SCpnt);
- int sim710_dev_reset(Scsi_Cmnd * SCpnt);
- int sim710_host_reset(Scsi_Cmnd * SCpnt);
- int sim710_biosparam(Disk *, kdev_t, int*);
- #ifdef MODULE
- int sim710_release(struct Scsi_Host *);
- #else
- #define sim710_release NULL
- #endif
- #include <scsi/scsicam.h>
- #define SIM710_SCSI { proc_name: "sim710",
- name: "Simple 53c710",
- detect: sim710_detect,
- release: sim710_release,
- queuecommand: sim710_queuecommand,
- eh_abort_handler: sim710_abort,
- eh_device_reset_handler: sim710_dev_reset,
- eh_bus_reset_handler: sim710_bus_reset,
- eh_host_reset_handler: sim710_host_reset,
- bios_param: scsicam_bios_param,
- can_queue: 8,
- this_id: 7,
- sg_tablesize: 128,
- cmd_per_lun: 1,
- use_clustering: DISABLE_CLUSTERING,
- use_new_eh_code: 1}
- #ifndef HOSTS_C
- #ifdef __BIG_ENDIAN
- #define bE 3 /* 0 for little endian, 3 for big endian */
- #else
- #define bE 0
- #endif
- /* SCSI control 0 rw, default = 0xc0 */
- #define SCNTL0_REG (0x00^bE)
- #define SCNTL0_ARB1 0x80 /* 0 0 = simple arbitration */
- #define SCNTL0_ARB2 0x40 /* 1 1 = full arbitration */
- #define SCNTL0_STRT 0x20 /* Start Sequence */
- #define SCNTL0_WATN 0x10 /* Select with ATN */
- #define SCNTL0_EPC 0x08 /* Enable parity checking */
- /* Bit 2 is reserved on 800 series chips */
- #define SCNTL0_EPG_700 0x04 /* Enable parity generation */
- #define SCNTL0_AAP 0x02 /* ATN/ on parity error */
- #define SCNTL0_TRG 0x01 /* Target mode */
- /* SCSI control 1 rw, default = 0x00 */
- #define SCNTL1_REG (0x01^bE)
- #define SCNTL1_EXC 0x80 /* Extra Clock Cycle of Data setup */
- #define SCNTL1_ADB 0x40 /* contents of SODL on bus */
- #define SCNTL1_ESR_700 0x20 /* Enable SIOP response to selection
- and reselection */
- #define SCNTL1_CON 0x10 /* Connected */
- #define SCNTL1_RST 0x08 /* SCSI RST/ */
- #define SCNTL1_AESP 0x04 /* Force bad parity */
- #define SCNTL1_SND_700 0x02 /* Start SCSI send */
- #define SCNTL1_IARB_800 0x02 /* Immediate Arbitration, start
- arbitration immediately after
- busfree is detected */
- #define SCNTL1_RCV_700 0x01 /* Start SCSI receive */
- #define SCNTL1_SST_800 0x01 /* Start SCSI transfer */
- /* SCSI control 2 rw, */
- #define SCNTL2_REG_800 (0x02^bE)
- #define SCNTL2_800_SDU 0x80 /* SCSI disconnect unexpected */
- /* SCSI control 3 rw */
- #define SCNTL3_REG_800 (0x03^bE)
- #define SCNTL3_800_SCF_SHIFT 4
- #define SCNTL3_800_SCF_MASK 0x70
- #define SCNTL3_800_SCF2 0x40 /* Synchronous divisor */
- #define SCNTL3_800_SCF1 0x20 /* 0x00 = SCLK/3 */
- #define SCNTL3_800_SCF0 0x10 /* 0x10 = SCLK/1 */
- /* 0x20 = SCLK/1.5
- 0x30 = SCLK/2
- 0x40 = SCLK/3 */
- #define SCNTL3_800_CCF_SHIFT 0
- #define SCNTL3_800_CCF_MASK 0x07
- #define SCNTL3_800_CCF2 0x04 /* 0x00 50.01 to 66 */
- #define SCNTL3_800_CCF1 0x02 /* 0x01 16.67 to 25 */
- #define SCNTL3_800_CCF0 0x01 /* 0x02 25.01 - 37.5
- 0x03 37.51 - 50
- 0x04 50.01 - 66 */
- /*
- * SCSI destination ID rw - the appropriate bit is set for the selected
- * target ID. This is written by the SCSI SCRIPTS processor.
- * default = 0x00
- */
- #define SDID_REG_700 (0x02^bE)
- #define SDID_REG_800 (0x06^bE)
- #define GP_REG_800 (0x07^bE) /* General purpose IO */
- #define GP_800_IO1 0x02
- #define GP_800_IO2 0x01
- /* SCSI interrupt enable rw, default = 0x00 */
- #define SIEN_REG_700 (0x03^bE)
- #define SIEN0_REG_800 (0x40^bE)
- #define SIEN_MA 0x80 /* Phase mismatch (ini) or ATN (tgt) */
- #define SIEN_FC 0x40 /* Function complete */
- #define SIEN_700_STO 0x20 /* Selection or reselection timeout */
- #define SIEN_800_SEL 0x20 /* Selected */
- #define SIEN_700_SEL 0x10 /* Selected or reselected */
- #define SIEN_800_RESEL 0x10 /* Reselected */
- #define SIEN_SGE 0x08 /* SCSI gross error */
- #define SIEN_UDC 0x04 /* Unexpected disconnect */
- #define SIEN_RST 0x02 /* SCSI RST/ received */
- #define SIEN_PAR 0x01 /* Parity error */
- /*
- * SCSI chip ID rw
- * NCR53c700 :
- * When arbitrating, the highest bit is used, when reselection or selection
- * occurs, the chip responds to all IDs for which a bit is set.
- * default = 0x00
- */
- #define SCID_REG (0x04^bE)
- /* Bit 7 is reserved on 800 series chips */
- #define SCID_800_RRE 0x40 /* Enable response to reselection */
- #define SCID_800_SRE 0x20 /* Enable response to selection */
- /* Bits four and three are reserved on 800 series chips */
- #define SCID_800_ENC_MASK 0x07 /* Encoded SCSI ID */
- /* SCSI transfer rw, default = 0x00 */
- #define SXFER_REG (0x05^bE)
- #define SXFER_DHP 0x80 /* Disable halt on parity */
- #define SXFER_TP2 0x40 /* Transfer period msb */
- #define SXFER_TP1 0x20
- #define SXFER_TP0 0x10 /* lsb */
- #define SXFER_TP_MASK 0x70
- /* FIXME : SXFER_TP_SHIFT == 5 is right for '8xx chips */
- #define SXFER_TP_SHIFT 5
- #define SXFER_TP_4 0x00 /* Divisors */
- #define SXFER_TP_5 0x10<<1
- #define SXFER_TP_6 0x20<<1
- #define SXFER_TP_7 0x30<<1
- #define SXFER_TP_8 0x40<<1
- #define SXFER_TP_9 0x50<<1
- #define SXFER_TP_10 0x60<<1
- #define SXFER_TP_11 0x70<<1
- #define SXFER_MO3 0x08 /* Max offset msb */
- #define SXFER_MO2 0x04
- #define SXFER_MO1 0x02
- #define SXFER_MO0 0x01 /* lsb */
- #define SXFER_MO_MASK 0x0f
- #define SXFER_MO_SHIFT 0
- /*
- * SCSI output data latch rw
- * The contents of this register are driven onto the SCSI bus when
- * the Assert Data Bus bit of the SCNTL1 register is set and
- * the CD, IO, and MSG bits of the SOCL register match the SCSI phase
- */
- #define SODL_REG_700 (0x06^bE)
- #define SODL_REG_800 (0x54^bE)
- /*
- * SCSI output control latch rw, default = 0
- * Note that when the chip is being manually programmed as an initiator,
- * the MSG, CD, and IO bits must be set correctly for the phase the target
- * is driving the bus in. Otherwise no data transfer will occur due to
- * phase mismatch.
- */
- #define SOCL_REG (0x07^bE)
- #define SOCL_REQ 0x80 /* REQ */
- #define SOCL_ACK 0x40 /* ACK */
- #define SOCL_BSY 0x20 /* BSY */
- #define SOCL_SEL 0x10 /* SEL */
- #define SOCL_ATN 0x08 /* ATN */
- #define SOCL_MSG 0x04 /* MSG */
- #define SOCL_CD 0x02 /* C/D */
- #define SOCL_IO 0x01 /* I/O */
- /*
- * SCSI first byte received latch ro
- * This register contains the first byte received during a block MOVE
- * SCSI SCRIPTS instruction, including
- *
- * Initiator mode Target mode
- * Message in Command
- * Status Message out
- * Data in Data out
- *
- * It also contains the selecting or reselecting device's ID and our
- * ID.
- *
- * Note that this is the register the various IF conditionals can
- * operate on.
- */
- #define SFBR_REG (0x08^bE)
- /*
- * SCSI input data latch ro
- * In initiator mode, data is latched into this register on the rising
- * edge of REQ/. In target mode, data is latched on the rising edge of
- * ACK/
- */
- #define SIDL_REG_700 (0x09^bE)
- #define SIDL_REG_800 (0x50^bE)
- /*
- * SCSI bus data lines ro
- * This register reflects the instantaneous status of the SCSI data
- * lines. Note that SCNTL0 must be set to disable parity checking,
- * otherwise reading this register will latch new parity.
- */
- #define SBDL_REG_700 (0x0a^bE)
- #define SBDL_REG_800 (0x58^bE)
- #define SSID_REG_800 (0x0a^bE)
- #define SSID_800_VAL 0x80 /* Exactly two bits asserted at sel */
- #define SSID_800_ENCID_MASK 0x07 /* Device which performed operation */
- /*
- * SCSI bus control lines rw,
- * instantaneous readout of control lines
- */
- #define SBCL_REG (0x0b^bE)
- #define SBCL_REQ 0x80 /* REQ ro */
- #define SBCL_ACK 0x40 /* ACK ro */
- #define SBCL_BSY 0x20 /* BSY ro */
- #define SBCL_SEL 0x10 /* SEL ro */
- #define SBCL_ATN 0x08 /* ATN ro */
- #define SBCL_MSG 0x04 /* MSG ro */
- #define SBCL_CD 0x02 /* C/D ro */
- #define SBCL_IO 0x01 /* I/O ro */
- #define SBCL_PHASE_CMDOUT SBCL_CD
- #define SBCL_PHASE_DATAIN SBCL_IO
- #define SBCL_PHASE_DATAOUT 0
- #define SBCL_PHASE_MSGIN (SBCL_CD|SBCL_IO|SBCL_MSG)
- #define SBCL_PHASE_MSGOUT (SBCL_CD|SBCL_MSG)
- #define SBCL_PHASE_STATIN (SBCL_CD|SBCL_IO)
- #define SBCL_PHASE_MASK (SBCL_CD|SBCL_IO|SBCL_MSG)
- /*
- * Synchronous SCSI Clock Control bits
- * 0 - set by DCNTL
- * 1 - SCLK / 1.0
- * 2 - SCLK / 1.5
- * 3 - SCLK / 2.0
- */
- #define SBCL_SSCF1 0x02 /* wo, -66 only */
- #define SBCL_SSCF0 0x01 /* wo, -66 only */
- #define SBCL_SSCF_MASK 0x03
- /*
- * XXX note : when reading the DSTAT and STAT registers to clear interrupts,
- * insure that 10 clocks elapse between the two
- */
- /* DMA status ro */
- #define DSTAT_REG (0x0c^bE)
- #define DSTAT_DFE 0x80 /* DMA FIFO empty */
- #define DSTAT_800_MDPE 0x40 /* Master Data Parity Error */
- #define DSTAT_BF 0x20 /* Bus Fault */
- #define DSTAT_ABRT 0x10 /* Aborted - set on error */
- #define DSTAT_SSI 0x08 /* SCRIPTS single step interrupt */
- #define DSTAT_SIR 0x04 /* SCRIPTS interrupt received -
- set when INT instruction is
- executed */
- #define DSTAT_WTD 0x02 /* Watchdog timeout detected */
- #define DSTAT_OPC 0x01 /* Illegal instruction */
- #define DSTAT_IID 0x01 /* Same thing, different name */
- #define SSTAT0_REG (0x0d^bE) /* SCSI status 0 ro */
- #define SIST0_REG_800 (0x42^bE) /* SCSI status 0 ro */
- #define SSTAT0_MA 0x80 /* ini : phase mismatch,
- * tgt : ATN/ asserted
- */
- #define SSTAT0_CMP 0x40 /* function complete */
- #define SSTAT0_700_STO 0x20 /* Selection or reselection timeout */
- #define SSTAT0_800_SEL 0x20 /* Selected */
- #define SSTAT0_700_SEL 0x10 /* Selected or reselected */
- #define SIST0_800_RSL 0x10 /* Reselected */
- #define SSTAT0_SGE 0x08 /* SCSI gross error */
- #define SSTAT0_UDC 0x04 /* Unexpected disconnect */
- #define SSTAT0_RST 0x02 /* SCSI RST/ received */
- #define SSTAT0_PAR 0x01 /* Parity error */
- #define SSTAT1_REG (0x0e^bE) /* SCSI status 1 ro */
- #define SSTAT1_ILF 0x80 /* SIDL full */
- #define SSTAT1_ORF 0x40 /* SODR full */
- #define SSTAT1_OLF 0x20 /* SODL full */
- #define SSTAT1_AIP 0x10 /* Arbitration in progress */
- #define SSTAT1_LOA 0x08 /* Lost arbitration */
- #define SSTAT1_WOA 0x04 /* Won arbitration */
- #define SSTAT1_RST 0x02 /* Instant readout of RST/ */
- #define SSTAT1_SDP 0x01 /* Instant readout of SDP/ */
- #define SSTAT2_REG (0x0f^bE) /* SCSI status 2 ro */
- #define SSTAT2_FF3 0x80 /* number of bytes in synchronous */
- #define SSTAT2_FF2 0x40 /* data FIFO */
- #define SSTAT2_FF1 0x20
- #define SSTAT2_FF0 0x10
- #define SSTAT2_FF_MASK 0xf0
- #define SSTAT2_FF_SHIFT 4
- /*
- * Latched signals, latched on the leading edge of REQ/ for initiators,
- * ACK/ for targets.
- */
- #define SSTAT2_SDP 0x08 /* SDP */
- #define SSTAT2_MSG 0x04 /* MSG */
- #define SSTAT2_CD 0x02 /* C/D */
- #define SSTAT2_IO 0x01 /* I/O */
- #define SSTAT2_PHASE_CMDOUT SSTAT2_CD
- #define SSTAT2_PHASE_DATAIN SSTAT2_IO
- #define SSTAT2_PHASE_DATAOUT 0
- #define SSTAT2_PHASE_MSGIN (SSTAT2_CD|SSTAT2_IO|SSTAT2_MSG)
- #define SSTAT2_PHASE_MSGOUT (SSTAT2_CD|SSTAT2_MSG)
- #define SSTAT2_PHASE_STATIN (SSTAT2_CD|SSTAT2_IO)
- #define SSTAT2_PHASE_MASK (SSTAT2_CD|SSTAT2_IO|SSTAT2_MSG)
- #define DSA_REG 0x10 /* DATA structure address */
- #define CTEST0_REG_700 (0x14^bE) /* Chip test 0 ro */
- #define CTEST0_REG_800 (0x18^bE) /* Chip test 0 ro */
- /* 0x80 - 0x04 are reserved */
- #define CTEST0_700_RTRG 0x02 /* Real target mode */
- #define CTEST0_700_DDIR 0x01 /* Data direction, 1 =
- * SCSI bus to host, 0 =
- * host to SCSI.
- */
- #define CTEST1_REG_700 (0x15^bE) /* Chip test 1 ro */
- #define CTEST1_REG_800 (0x19^bE) /* Chip test 1 ro */
- #define CTEST1_FMT3 0x80 /* Identify which byte lanes are empty */
- #define CTEST1_FMT2 0x40 /* in the DMA FIFO */
- #define CTEST1_FMT1 0x20
- #define CTEST1_FMT0 0x10
- #define CTEST1_FFL3 0x08 /* Identify which bytes lanes are full */
- #define CTEST1_FFL2 0x04 /* in the DMA FIFO */
- #define CTEST1_FFL1 0x02
- #define CTEST1_FFL0 0x01
- #define CTEST2_REG_700 (0x16^bE) /* Chip test 2 ro */
- #define CTEST2_REG_800 (0x1a^bE) /* Chip test 2 ro */
- #define CTEST2_800_DDIR 0x80 /* 1 = SCSI->host */
- #define CTEST2_800_SIGP 0x40 /* A copy of SIGP in ISTAT.
- Reading this register clears */
- #define CTEST2_800_CIO 0x20 /* Configured as IO */.
- #define CTEST2_800_CM 0x10 /* Configured as memory */
- /* 0x80 - 0x40 are reserved on 700 series chips */
- #define CTEST2_700_SOFF 0x20 /* SCSI Offset Compare,
- * As an initiator, this bit is
- * one when the synchronous offset
- * is zero, as a target this bit
- * is one when the synchronous
- * offset is at the maximum
- * defined in SXFER
- */
- #define CTEST2_700_SFP 0x10 /* SCSI FIFO parity bit,
- * reading CTEST3 unloads a byte
- * from the FIFO and sets this
- */
- #define CTEST2_700_DFP 0x08 /* DMA FIFO parity bit,
- * reading CTEST6 unloads a byte
- * from the FIFO and sets this
- */
- #define CTEST2_TEOP 0x04 /* SCSI true end of process,
- * indicates a totally finished
- * transfer
- */
- #define CTEST2_DREQ 0x02 /* Data request signal */
- /* 0x01 is reserved on 700 series chips */
- #define CTEST2_800_DACK 0x01
- /*
- * Chip test 3 ro
- * Unloads the bottom byte of the eight deep SCSI synchronous FIFO,
- * check SSTAT2 FIFO full bits to determine size. Note that a GROSS
- * error results if a read is attempted on this register. Also note
- * that 16 and 32 bit reads of this register will cause corruption.
- */
- #define CTEST3_REG_700 (0x17^bE)
- /* Chip test 3 rw */
- #define CTEST3_REG_800 (0x1b^bE)
- #define CTEST3_800_V3 0x80 /* Chip revision */
- #define CTEST3_800_V2 0x40
- #define CTEST3_800_V1 0x20
- #define CTEST3_800_V0 0x10
- #define CTEST3_800_FLF 0x08 /* Flush DMA FIFO */
- #define CTEST3_800_CLF 0x04 /* Clear DMA FIFO */
- #define CTEST3_800_FM 0x02 /* Fetch mode pin */
- /* bit 0 is reserved on 800 series chips */
- #define CTEST4_REG_400 (0x18^bE) /* Chip test 4 rw */
- #define CTEST4_REG_800 (0x21^bE) /* Chip test 4 rw */
- /* 0x80 is reserved on 700 series chips */
- #define CTEST4_800_BDIS 0x80 /* Burst mode disable */
- #define CTEST4_ZMOD 0x40 /* High impedance mode */
- #define CTEST4_SZM 0x20 /* SCSI bus high impedance */
- #define CTEST4_700_SLBE 0x10 /* SCSI loopback enabled */
- #define CTEST4_800_SRTM 0x10 /* Shadow Register Test Mode */
- #define CTEST4_700_SFWR 0x08 /* SCSI FIFO write enable,
- * redirects writes from SODL
- * to the SCSI FIFO.
- */
- #define CTEST4_800_MPEE 0x08 /* Enable parity checking
- during master cycles on PCI
- bus */
- /*
- * These bits send the contents of the CTEST6 register to the appropriate
- * byte lane of the 32 bit DMA FIFO. Normal operation is zero, otherwise
- * the high bit means the low two bits select the byte lane.
- */
- #define CTEST4_FBL2 0x04
- #define CTEST4_FBL1 0x02
- #define CTEST4_FBL0 0x01
- #define CTEST4_FBL_MASK 0x07
- #define CTEST4_FBL_0 0x04 /* Select DMA FIFO byte lane 0 */
- #define CTEST4_FBL_1 0x05 /* Select DMA FIFO byte lane 1 */
- #define CTEST4_FBL_2 0x06 /* Select DMA FIFO byte lane 2 */
- #define CTEST4_FBL_3 0x07 /* Select DMA FIFO byte lane 3 */
- #define CTEST4_800_SAVE (CTEST4_800_BDIS)
- #define CTEST5_REG_700 (0x19^bE) /* Chip test 5 rw */
- #define CTEST5_REG_800 (0x22^bE) /* Chip test 5 rw */
- /*
- * Clock Address Incrementor. When set, it increments the
- * DNAD register to the next bus size boundary. It automatically
- * resets itself when the operation is complete.
- */
- #define CTEST5_ADCK 0x80
- /*
- * Clock Byte Counter. When set, it decrements the DBC register to
- * the next bus size boundary.
- */
- #define CTEST5_BBCK 0x40
- /*
- * Reset SCSI Offset. Setting this bit to 1 clears the current offset
- * pointer in the SCSI synchronous offset counter (SSTAT). This bit
- * is set to 1 if a SCSI Gross Error Condition occurs. The offset should
- * be cleared when a synchronous transfer fails. When written, it is
- * automatically cleared after the SCSI synchronous offset counter is
- * reset.
- */
- /* Bit 5 is reserved on 800 series chips */
- #define CTEST5_700_ROFF 0x20
- /*
- * Master Control for Set or Reset pulses. When 1, causes the low
- * four bits of register to set when set, 0 causes the low bits to
- * clear when set.
- */
- #define CTEST5_MASR 0x10
- #define CTEST5_DDIR 0x08 /* DMA direction */
- /*
- * Bits 2-0 are reserved on 800 series chips
- */
- #define CTEST5_700_EOP 0x04 /* End of process */
- #define CTEST5_700_DREQ 0x02 /* Data request */
- #define CTEST5_700_DACK 0x01 /* Data acknowledge */
- /*
- * Chip test 6 rw - writing to this register writes to the byte
- * lane in the DMA FIFO as determined by the FBL bits in the CTEST4
- * register.
- */
- #define CTEST6_REG_700 (0x1a^bE)
- #define CTEST6_REG_800 (0x23^bE)
- #define CTEST7_REG (0x1b^bE) /* Chip test 7 rw */
- #define CTEST7_10_CDIS 0x80 /* Cache burst disable */
- #define CTEST7_10_SC1 0x40 /* Snoop control bits */
- #define CTEST7_10_SC0 0x20
- #define CTEST7_10_SC_MASK 0x60
- #define CTEST7_STD 0x10 /* Selection timeout disable */
- #define CTEST7_DFP 0x08 /* DMA FIFO parity bit for CTEST6 */
- #define CTEST7_EVP 0x04 /* 1 = host bus even parity, 0 = odd */
- #define CTEST7_10_TT1 0x02 /* Transfer type */
- #define CTEST7_DIFF 0x01 /* Differential mode */
- #define CTEST7_SAVE ( CTEST7_EVP | CTEST7_DIFF )
- #define TEMP_REG 0x1c /* through 0x1f Temporary stack rw */
- #define DFIFO_REG (0x20^bE) /* DMA FIFO rw */
- /*
- * 0x80 is reserved on the NCR53c710, the CLF and FLF bits have been
- * moved into the CTEST8 register.
- */
- #define DFIFO_BO6 0x40
- #define DFIFO_BO5 0x20
- #define DFIFO_BO4 0x10
- #define DFIFO_BO3 0x08
- #define DFIFO_BO2 0x04
- #define DFIFO_BO1 0x02
- #define DFIFO_BO0 0x01
- #define DFIFO_10_BO_MASK 0x7f /* 7 bit counter */
- /*
- * Interrupt status rw
- * Note that this is the only register which can be read while SCSI
- * SCRIPTS are being executed.
- */
- #define ISTAT_REG_700 (0x21^bE)
- #define ISTAT_REG_800 (0x14^bE)
- #define ISTAT_ABRT 0x80 /* Software abort, write
- *1 to abort, wait for interrupt. */
- #define ISTAT_10_SRST 0x40 /* software reset */
- #define ISTAT_10_SIGP 0x20 /* signal script */
- #define ISTAT_CON 0x08 /* 1 when connected */
- #define ISTAT_800_INTF 0x04 /* Interrupt on the fly */
- #define ISTAT_700_PRE 0x04 /* Pointer register empty.
- * Set to 1 when DSPS and DSP
- * registers are empty in pipeline
- * mode, always set otherwise.
- */
- #define ISTAT_SIP 0x02 /* SCSI interrupt pending from
- * SCSI portion of SIOP see
- * SSTAT0
- */
- #define ISTAT_DIP 0x01 /* DMA interrupt pending
- * see DSTAT
- */
- #define CTEST8_REG (0x22^bE) /* Chip test 8 rw */
- #define CTEST8_10_V3 0x80 /* Chip revision */
- #define CTEST8_10_V2 0x40
- #define CTEST8_10_V1 0x20
- #define CTEST8_10_V0 0x10
- #define CTEST8_10_V_MASK 0xf0
- #define CTEST8_10_FLF 0x08 /* Flush FIFOs */
- #define CTEST8_10_CLF 0x04 /* Clear FIFOs */
- #define CTEST8_10_FM 0x02 /* Fetch pin mode */
- #define CTEST8_10_SM 0x01 /* Snoop pin mode */
- #define LCRC_REG_10 (0x23^bE)
- /*
- * 0x24 through 0x27 are the DMA byte counter register. Instructions
- * write their high 8 bits into the DCMD register, the low 24 bits into
- * the DBC register.
- *
- * Function is dependent on the command type being executed.
- */
- #define DBC_REG 0x24
- /*
- * For Block Move Instructions, DBC is a 24 bit quantity representing
- * the number of bytes to transfer.
- * For Transfer Control Instructions, DBC is bit fielded as follows :
- */
- /* Bits 20 - 23 should be clear */
- #define DBC_TCI_TRUE (1 << 19) /* Jump when true */
- #define DBC_TCI_COMPARE_DATA (1 << 18) /* Compare data */
- #define DBC_TCI_COMPARE_PHASE (1 << 17) /* Compare phase with DCMD field */
- #define DBC_TCI_WAIT_FOR_VALID (1 << 16) /* Wait for REQ */
- /* Bits 8 - 15 are reserved on some implementations ? */
- #define DBC_TCI_MASK_MASK 0xff00 /* Mask for data compare */
- #define DBC_TCI_MASK_SHIFT 8
- #define DBC_TCI_DATA_MASK 0xff /* Data to be compared */
- #define DBC_TCI_DATA_SHIFT 0
- #define DBC_RWRI_IMMEDIATE_MASK 0xff00 /* Immediate data */
- #define DBC_RWRI_IMMEDIATE_SHIFT 8 /* Amount to shift */
- #define DBC_RWRI_ADDRESS_MASK 0x3f0000 /* Register address */
- #define DBC_RWRI_ADDRESS_SHIFT 16
- /*
- * DMA command r/w
- */
- #define DCMD_REG (0x27^bE)
- #define DCMD_TYPE_MASK 0xc0 /* Masks off type */
- #define DCMD_TYPE_BMI 0x00 /* Indicates a Block Move instruction */
- #define DCMD_BMI_IO 0x01 /* I/O, CD, and MSG bits selecting */
- #define DCMD_BMI_CD 0x02 /* the phase for the block MOVE */
- #define DCMD_BMI_MSG 0x04 /* instruction */
- #define DCMD_BMI_OP_MASK 0x18 /* mask for opcode */
- #define DCMD_BMI_OP_MOVE_T 0x00 /* MOVE */
- #define DCMD_BMI_OP_MOVE_I 0x08 /* MOVE Initiator */
- #define DCMD_BMI_INDIRECT 0x20 /* Indirect addressing */
- #define DCMD_TYPE_TCI 0x80 /* Indicates a Transfer Control
- instruction */
- #define DCMD_TCI_IO 0x01 /* I/O, CD, and MSG bits selecting */
- #define DCMD_TCI_CD 0x02 /* the phase for the block MOVE */
- #define DCMD_TCI_MSG 0x04 /* instruction */
- #define DCMD_TCI_OP_MASK 0x38 /* mask for opcode */
- #define DCMD_TCI_OP_JUMP 0x00 /* JUMP */
- #define DCMD_TCI_OP_CALL 0x08 /* CALL */
- #define DCMD_TCI_OP_RETURN 0x10 /* RETURN */
- #define DCMD_TCI_OP_INT 0x18 /* INT */
- #define DCMD_TYPE_RWRI 0x40 /* Indicates I/O or register Read/Write
- instruction */
- #define DCMD_RWRI_OPC_MASK 0x38 /* Opcode mask */
- #define DCMD_RWRI_OPC_WRITE 0x28 /* Write SFBR to register */
- #define DCMD_RWRI_OPC_READ 0x30 /* Read register to SFBR */
- #define DCMD_RWRI_OPC_MODIFY 0x38 /* Modify in place */
- #define DCMD_RWRI_OP_MASK 0x07
- #define DCMD_RWRI_OP_MOVE 0x00
- #define DCMD_RWRI_OP_SHL 0x01
- #define DCMD_RWRI_OP_OR 0x02
- #define DCMD_RWRI_OP_XOR 0x03
- #define DCMD_RWRI_OP_AND 0x04
- #define DCMD_RWRI_OP_SHR 0x05
- #define DCMD_RWRI_OP_ADD 0x06
- #define DCMD_RWRI_OP_ADDC 0x07
- #define DCMD_TYPE_MMI 0xc0 /* Indicates a Memory Move instruction
- (three words) */
- #define DNAD_REG 0x28 /* through 0x2b DMA next address for
- data */
- #define DSP_REG 0x2c /* through 0x2f DMA SCRIPTS pointer rw */
- #define DSPS_REG 0x30 /* through 0x33 DMA SCRIPTS pointer
- save rw */
- #define DMODE_BL1 0x80 /* Burst length bits */
- #define DMODE_BL0 0x40
- #define DMODE_BL_MASK 0xc0
- /* Burst lengths (800) */
- #define DMODE_BL_2 0x00 /* 2 transfer */
- #define DMODE_BL_4 0x40 /* 4 transfers */
- #define DMODE_BL_8 0x80 /* 8 transfers */
- #define DMODE_BL_16 0xc0 /* 16 transfers */
- #define DMODE_10_BL_1 0x00 /* 1 transfer */
- #define DMODE_10_BL_2 0x40 /* 2 transfers */
- #define DMODE_10_BL_4 0x80 /* 4 transfers */
- #define DMODE_10_BL_8 0xc0 /* 8 transfers */
- #define DMODE_10_FC2 0x20 /* Driven to FC2 pin */
- #define DMODE_10_FC1 0x10 /* Driven to FC1 pin */
- #define DMODE_710_PD 0x08 /* Program/data on FC0 pin */
- #define DMODE_710_UO 0x02 /* User prog. output */
- #define DMODE_MAN 0x01 /* Manual start mode,
- * requires a 1 to be written
- * to the start DMA bit in the DCNTL
- * register to run scripts
- */
- /* NCR53c800 series only */
- #define SCRATCHA_REG_800 0x34 /* through 0x37 Scratch A rw */
- /* NCR53c710 only */
- #define SCRATCHB_REG_10 0x34 /* through 0x37 scratch rw */
- #define DMODE_REG (0x38^bE) /* DMA mode rw, NCR53c710 and newer */
- #define DMODE_800_SIOM 0x20 /* Source IO = 1 */
- #define DMODE_800_DIOM 0x10 /* Destination IO = 1 */
- #define DMODE_800_ERL 0x08 /* Enable Read Line */
- #define DIEN_REG (0x39^bE) /* DMA interrupt enable rw */
- /* 0x80, 0x40, and 0x20 are reserved on 700-series chips */
- #define DIEN_800_MDPE 0x40 /* Master data parity error */
- #define DIEN_800_BF 0x20 /* BUS fault */
- #define DIEN_700_BF 0x20 /* BUS fault */
- #define DIEN_ABRT 0x10 /* Enable aborted interrupt */
- #define DIEN_SSI 0x08 /* Enable single step interrupt */
- #define DIEN_SIR 0x04 /* Enable SCRIPTS INT command
- * interrupt
- */
- #define DIEN_700_WTD 0x02 /* Enable watchdog timeout interrupt */
- #define DIEN_700_OPC 0x01 /* Enable illegal instruction
- * interrupt
- */
- #define DIEN_800_IID 0x01 /* Same meaning, different name */
- /*
- * DMA watchdog timer rw
- * set in 16 CLK input periods.
- */
- #define DWT_REG (0x3a^bE)
- /* DMA control rw */
- #define DCNTL_REG (0x3b^bE)
- #define DCNTL_700_CF1 0x80 /* Clock divisor bits */
- #define DCNTL_700_CF0 0x40
- #define DCNTL_700_CF_MASK 0xc0
- /* Clock divisors Divisor SCLK range (MHZ) */
- #define DCNTL_700_CF_2 0x00 /* 2.0 37.51-50.00 */
- #define DCNTL_700_CF_1_5 0x40 /* 1.5 25.01-37.50 */
- #define DCNTL_700_CF_1 0x80 /* 1.0 16.67-25.00 */
- #define DCNTL_700_CF_3 0xc0 /* 3.0 50.01-66.67 (53c700-66) */
- #define DCNTL_700_S16 0x20 /* Load scripts 16 bits at a time */
- #define DCNTL_SSM 0x10 /* Single step mode */
- #define DCNTL_700_LLM 0x08 /* Low level mode, can only be set
- * after selection */
- #define DCNTL_800_IRQM 0x08 /* Totem pole IRQ pin */
- #define DCNTL_STD 0x04 /* Start DMA / SCRIPTS */
- /* 0x02 is reserved */
- #define DCNTL_10_COM 0x01 /* 700 software compatibility mode */
- #define DCNTL_10_EA 0x20 /* Enable Ack - needed for MVME16x */
- #define SCRATCHB_REG_800 0x5c /* through 0x5f scratch b rw */
- /* NCR53c710 only */
- #define ADDER_REG_10 0x3c /* Adder, NCR53c710 only */
- #define SIEN1_REG_800 (0x41^bE)
- #define SIEN1_800_STO 0x04 /* selection/reselection timeout */
- #define SIEN1_800_GEN 0x02 /* general purpose timer */
- #define SIEN1_800_HTH 0x01 /* handshake to handshake */
- #define SIST1_REG_800 (0x43^bE)
- #define SIST1_800_STO 0x04 /* selection/reselection timeout */
- #define SIST1_800_GEN 0x02 /* general purpose timer */
- #define SIST1_800_HTH 0x01 /* handshake to handshake */
- #define SLPAR_REG_800 (0x44^bE) /* Parity */
- #define MACNTL_REG_800 (0x46^bE) /* Memory access control */
- #define MACNTL_800_TYP3 0x80
- #define MACNTL_800_TYP2 0x40
- #define MACNTL_800_TYP1 0x20
- #define MACNTL_800_TYP0 0x10
- #define MACNTL_800_DWR 0x08
- #define MACNTL_800_DRD 0x04
- #define MACNTL_800_PSCPT 0x02
- #define MACNTL_800_SCPTS 0x01
- #define GPCNTL_REG_800 (0x47^bE) /* General Purpose Pin Control */
- /* Timeouts are expressed such that 0=off, 1=100us, doubling after that */
- #define STIME0_REG_800 (0x48^bE) /* SCSI Timer Register 0 */
- #define STIME0_800_HTH_MASK 0xf0 /* Handshake to Handshake timeout */
- #define STIME0_800_HTH_SHIFT 4
- #define STIME0_800_SEL_MASK 0x0f /* Selection timeout */
- #define STIME0_800_SEL_SHIFT 0
- #define STIME1_REG_800 (0x49^bE)
- #define STIME1_800_GEN_MASK 0x0f /* General purpose timer */
- #define RESPID_REG_800 (0x4a^bE) /* Response ID, bit fielded. 8
- bits on narrow chips, 16 on WIDE */
- #define STEST0_REG_800 (0x4c^bE)
- #define STEST0_800_SLT 0x08 /* Selection response logic test */
- #define STEST0_800_ART 0x04 /* Arbitration priority encoder test */
- #define STEST0_800_SOZ 0x02 /* Synchronous offset zero */
- #define STEST0_800_SOM 0x01 /* Synchronous offset maximum */
- #define STEST1_REG_800 (0x4d^bE)
- #define STEST1_800_SCLK 0x80 /* Disable SCSI clock */
- #define STEST2_REG_800 (0x4e^bE)
- #define STEST2_800_SCE 0x80 /* Enable SOCL/SODL */
- #define STEST2_800_ROF 0x40 /* Reset SCSI sync offset */
- #define STEST2_800_SLB 0x10 /* Enable SCSI loopback mode */
- #define STEST2_800_SZM 0x08 /* SCSI high impedance mode */
- #define STEST2_800_EXT 0x02 /* Extend REQ/ACK filter 30 to 60ns */
- #define STEST2_800_LOW 0x01 /* SCSI low level mode */
- #define STEST3_REG_800 (0x4f^bE)
- #define STEST3_800_TE 0x80 /* Enable active negation */
- #define STEST3_800_STR 0x40 /* SCSI FIFO test read */
- #define STEST3_800_HSC 0x20 /* Halt SCSI clock */
- #define STEST3_800_DSI 0x10 /* Disable single initiator response */
- #define STEST3_800_TTM 0x04 /* Time test mode */
- #define STEST3_800_CSF 0x02 /* Clear SCSI FIFO */
- #define STEST3_800_STW 0x01 /* SCSI FIFO test write */
- #define ISTAT_REG ISTAT_REG_700
- #define SCRATCH_REG SCRATCHB_REG_10
- #ifdef MEM_MAPPED
- #define NCR_read8(address)
- (unsigned int)readb((u32)(host->base) + ((u32)(address)))
- #define NCR_read32(address)
- (unsigned int) readl((u32)(host->base) + (u32)(address))
- #define NCR_write8(address,value)
- { DEB(DEB_REGS, printk("NCR: %02x => %08xn", (u32)(value), ((u32)(host->base) + (u32)(address))));
- *(volatile unsigned char *)
- ((u32)(host->base) + (u32)(address)) = (value); }
- #define NCR_write32(address,value)
- { DEB(DEB_REGS, printk("NCR: %08x => %08xn", (u32)(value), ((u32)(host->base) + (u32)(address))));
- *(volatile unsigned long *)
- ((u32)(host->base) + (u32)(address)) = (value); }
- #else
- #define NCR_read8(address)
- inb((u32)(host->base) + (address))
- #define NCR_read32(address)
- inl((u32)(host->base) + (address))
- #define NCR_write8(address,value)
- { DEB(DEB_REGS, printk("NCR: %02x => %08xn", (u32)(value), ((u32)(host->base) + (u32)(address))));
- outb((value), (u32)(host->base) + (u32)(address)); }
- #define NCR_write32(address,value)
- { DEB(DEB_REGS, printk("NCR: %08x => %08xn", (u32)(value), ((u32)(host->base) + (u32)(address))));
- outl((value), (u32)(host->base) + (u32)(address)); }
- #endif
- /* Patch arbitrary 32 bit words in the script */
- #define patch_abs_32(script, offset, symbol, value)
- for (i = 0; i < (sizeof (A_##symbol##_used) / sizeof
- (u32)); ++i) {
- (script)[A_##symbol##_used[i] - (offset)] += (value);
- DEB(DEB_FIXUP, printk("scsi%d: %s reference %d at 0x%x in %s is now 0x%xn",
- host->host_no, #symbol, i, A_##symbol##_used[i] -
- (int)(offset), #script, (script)[A_##symbol##_used[i] -
- (offset)]));
- }
- #endif
- #endif