FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/wd33c93reg.h

     /*      $NetBSD: wd33c93reg.h,v 1.3 2007/05/08 00:29:30 rumble Exp $    */
     
     /*
      * Copyright (c) 1990 The Regents of the University of California.
      * All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
      * Van Jacobson of Lawrence Berkeley Laboratory.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *  @(#)scsireg.h   7.3 (Berkeley) 2/5/91
     */
    
    /*
     * Copyright (c) 2001 Wayne Knowles
     *
     * This code is derived from software contributed to Berkeley by
     * Van Jacobson of Lawrence Berkeley Laboratory.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *  This product includes software developed by the University of
     *  California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *  @(#)scsireg.h   7.3 (Berkeley) 2/5/91
     */
    
    /*
     * WD33C93 SCSI interface hardware description.
     *
     * Using parts of the Mach scsi driver for the 33C93
     */
    
    #define SBIC_myid       0
    #define SBIC_cdbsize    0
    #define SBIC_control    1
    #define SBIC_timeo      2
    #define SBIC_cdb1       3
    #define SBIC_tsecs      3
    #define SBIC_cdb2       4
    #define SBIC_theads     4
    #define SBIC_cdb3       5
    #define SBIC_tcyl_hi    5
    #define SBIC_cdb4       6
    #define SBIC_tcyl_lo    6
    #define SBIC_cdb5       7
    #define SBIC_addr_hi    7
    #define SBIC_cdb6       8
    #define SBIC_addr_2     8
    #define SBIC_cdb7       9
    #define SBIC_addr_3     9
    #define SBIC_cdb8       10
    #define SBIC_addr_lo    10
   #define SBIC_cdb9       11
   #define SBIC_secno      11
   #define SBIC_cdb10      12
   #define SBIC_headno     12
   #define SBIC_cdb11      13
   #define SBIC_cylno_hi   13
   #define SBIC_cdb12      14
   #define SBIC_cylno_lo   14
   #define SBIC_tlun       15
   #define SBIC_cmd_phase  16
   #define SBIC_syn        17
   #define SBIC_count_hi   18
   #define SBIC_count_med  19
   #define SBIC_count_lo   20
   #define SBIC_selid      21
   #define SBIC_rselid     22
   #define SBIC_csr        23
   #define SBIC_cmd        24
   #define SBIC_data       25
   #define SBIC_queue_tag  26
   #define SBIC_aux_status 27
   
   /* wd33c93_asr is addressed directly */
   
   /*
    *  Register defines
    */
   
   /*
    * Auxiliary Status Register
    */
   
   #define SBIC_ASR_INT            0x80    /* Interrupt pending */
   #define SBIC_ASR_LCI            0x40    /* Last command ignored */
   #define SBIC_ASR_BSY            0x20    /* Busy, only cmd/data/asr readable */
   #define SBIC_ASR_CIP            0x10    /* Busy, cmd unavail also */
   #define SBIC_ASR_xxx            0x0c
   #define SBIC_ASR_PE             0x02    /* Parity error (even) */
   #define SBIC_ASR_DBR            0x01    /* Data Buffer Ready */
   
   /*
    * My ID register, and/or CDB Size
    */
   
   #define SBIC_ID_FS_8_10         0x00    /* Input clock is  8-10 MHz */
                                           /* 11 MHz is invalid */
   #define SBIC_ID_FS_12_15        0x40    /* Input clock is 12-15 MHz */
   #define SBIC_ID_FS_16_20        0x80    /* Input clock is 16-20 MHz */
   #define SBIC_ID_RAF             0x20    /* Enable Really Advanced Features */
   #define SBIC_ID_EHP             0x10    /* Enable host parity */
   #define SBIC_ID_EAF             0x08    /* Enable Advanced Features */
   #define SBIC_ID_MASK            0x07
   #define SBIC_ID_CBDSIZE_MASK    0x0f    /* if unk SCSI cmd group */
   
   /*
    * Control register
    */
   
   #define SBIC_CTL_DMA            0x80    /* Single byte dma */
   #define SBIC_CTL_DBA_DMA        0x40    /* direct buffer acces (bus master)*/
   #define SBIC_CTL_BURST_DMA      0x20    /* continuous mode (8237) */
   #define SBIC_CTL_NO_DMA         0x00    /* Programmed I/O */
   #define SBIC_CTL_HHP            0x10    /* Halt on host parity error */
   #define SBIC_CTL_EDI            0x08    /* Ending disconnect interrupt */
   #define SBIC_CTL_IDI            0x04    /* Intermediate disconnect interrupt*/
   #define SBIC_CTL_HA             0x02    /* Halt on ATN */
   #define SBIC_CTL_HSP            0x01    /* Halt on SCSI parity error */
   
   /*
    * Timeout period register
    * [val in msecs, input clk in 0.1 MHz]
    */
   
   #define SBIC_TIMEOUT(val,clk)   ((((val) * (clk)) / 800) + 1)
   
   /*
    * CDBn registers, note that
    *  cdb11 is used for status byte in target mode (send-status-and-cc)
    *  cdb12 sez if linked command complete, and w/flag if so
    */
   
   /*
    * Target LUN register
    * [holds target status when select-and-xfer]
    */
   
   #define SBIC_TLUN_VALID         0x80    /* did we receive an Identify msg */
   #define SBIC_TLUN_DOK           0x40    /* Disconnect OK */
   #define SBIC_TLUN_xxx           0x38
   #define SBIC_TLUN_MASK          0x07
   
   /*
    * Command Phase register
    */
   
   #define SBIC_CPH_MASK           0x7f    /* values/restarts are cmd specific */
   #define SBIC_CPH(p)             ((p) & SBIC_CPH_MASK)
   
   /*
    * FIFO register
    */
   
   #define SBIC_FIFO_93_DEPTH              5
   #define SBIC_FIFO_93AB_DEPTH            12
   
   /*
    * maximum possible size in TC registers. Since this is 24 bit, it's easy
    */
   #define SBIC_TC_MAX             ((1 << 24) - 1)
   
   /*
    * Synchronous xfer register
    *
    * NB: SBIC_SYN_FSS only valid on WD33C93B with 16-20MHz clock.
    */
   
   #define SBIC_SYN_OFF_MASK       0x0f
   #define SBIC_SYN_93_MAX_OFFSET  (SBIC_FIFO_93_DEPTH - 1) /* 4 is recommended */
   #define SBIC_SYN_93AB_MAX_OFFSET SBIC_FIFO_93AB_DEPTH
   #define SBIC_SYN_PER_MASK       0x70
   #define SBIC_SYN_MIN_PERIOD     2       /* upto 8, encoded as 0 */
   #define SBIC_SYN_FSS            0x80    /* Enable Fast SCSI Transfers (10MB/s)*/
   
   #define SBIC_SYN(o,p,f) \
       (((o) & SBIC_SYN_OFF_MASK) | (((p) << 4) & SBIC_SYN_PER_MASK) | \
        ((f) ? SBIC_SYN_FSS : 0))
   
   /*
    * Transfer count register
    * optimal access macros depend on addressing
    */
   
   /*
    * Destination ID (selid) register
    */
   
   #define SBIC_SID_SCC            0x80    /* Select command chaining (tgt) */
   #define SBIC_SID_DPD            0x40    /* Data phase direction (inittor) */
   #define SBIC_SID_FROM_SCSI      0x40
   #define SBIC_SID_TO_SCSI        0x00
   #define SBIC_SID_xxx            0x38
   #define SBIC_SID_IDMASK         0x07
   
   /*
    * Source ID (rselid) register
    */
   
   #define SBIC_RID_ER             0x80    /* Enable reselection */
   #define SBIC_RID_ES             0x40    /* Enable selection */
   #define SBIC_RID_DSP            0x20    /* Disable select parity */
   #define SBIC_RID_SIV            0x08    /* Source ID valid */
   #define SBIC_RID_MASK           0x07
   
   /*
    * Status register
    */
   
   #define SBIC_CSR_CAUSE          0xf0
   #define SBIC_CSR_RESET          0x00    /* chip was reset */
   #define SBIC_CSR_CMD_DONE       0x10    /* cmd completed */
   #define SBIC_CSR_CMD_STOPPED    0x20    /* interrupted or abrted*/
   #define SBIC_CSR_CMD_ERR        0x40    /* end with error */
   #define SBIC_CSR_BUS_SERVICE    0x80    /* REQ pending on the bus */
   
   
   #define SBIC_CSR_QUALIFIER      0x0f
   /* Reset State Interrupts */
   #define SBIC_CSR_RESET          0x00    /* reset w/advanced features*/
   #define SBIC_CSR_RESET_AM       0x01    /* reset w/advanced features*/
   /* Successful Completion Interrupts */
   #define SBIC_CSR_TARGET         0x10    /* reselect complete */
   #define SBIC_CSR_INITIATOR      0x11    /* select complete */
   #define SBIC_CSR_WO_ATN         0x13    /* tgt mode completion */
   #define SBIC_CSR_W_ATN          0x14    /* ditto */
   #define SBIC_CSR_XLATED         0x15    /* translate address cmd */
   #define SBIC_CSR_S_XFERRED      0x16    /* initiator mode completion*/
   #define SBIC_CSR_XFERRED        0x18    /* phase in low bits */
   /* Paused or Aborted Interrupts */
   #define SBIC_CSR_MSGIN_W_ACK    0x20    /* (I) msgin, ACK asserted*/
   #define SBIC_CSR_SDP            0x21    /* (I) SDP msg received */
   #define SBIC_CSR_SEL_ABRT       0x22    /* sel/resel aborted */
   #define SBIC_CSR_XFR_PAUSED     0x23    /* (T) no ATN */
   #define SBIC_CSR_XFR_PAUSED_ATN 0x24    /* (T) ATN is asserted */
   #define SBIC_CSR_RSLT_AM        0x27    /* (I) lost selection (AM) */
   #define SBIC_CSR_MIS            0x28    /* (I) xfer aborted, ph mis */
   /* Terminated Interrupts */
   #define SBIC_CSR_CMD_INVALID    0x40
   #define SBIC_CSR_DISC           0x41    /* (I) tgt disconnected */
   #define SBIC_CSR_SEL_TIMEO      0x42
   #define SBIC_CSR_PE             0x43    /* parity error */
   #define SBIC_CSR_PE_ATN         0x44    /* ditto, ATN is asserted */
   #define SBIC_CSR_XLATE_TOOBIG   0x45
   #define SBIC_CSR_RSLT_NOAM      0x46    /* (I) lost sel, no AM mode */
   #define SBIC_CSR_BAD_STATUS     0x47    /* status byte was nok */
   #define SBIC_CSR_MIS_1          0x48    /* ph mis, see low bits */
   /* Service Required Interrupts */
   #define SBIC_CSR_RSLT_NI        0x80    /* reselected, no ify msg */
   #define SBIC_CSR_RSLT_IFY       0x81    /* ditto, AM mode, got ify */
   #define SBIC_CSR_SLT            0x82    /* selected, no ATN */
   #define SBIC_CSR_SLT_ATN        0x83    /* selected with ATN */
   #define SBIC_CSR_ATN            0x84    /* (T) ATN asserted */
   #define SBIC_CSR_DISC_1         0x85    /* (I) bus is free */
   #define SBIC_CSR_UNK_GROUP      0x87    /* strange CDB1 */
   #define SBIC_CSR_MIS_2          0x88    /* (I) ph mis, see low bits */
   
   #define SBIC_PHASE(csr)         SCSI_PHASE(csr)
   
   /*
    * Command register (command codes)
    */
   
   #define SBIC_CMD_SBT            0x80    /* Single byte xfer qualifier */
   #define SBIC_CMD_MASK           0x7f
   
                       /* Miscellaneous */
   #define SBIC_CMD_RESET          0x00    /* (DTI) lev I */
   #define SBIC_CMD_ABORT          0x01    /* (DTI) lev I */
   #define SBIC_CMD_DISC           0x04    /* ( TI) lev I */
   #define SBIC_CMD_SSCC           0x0d    /* ( TI) lev I */
   #define SBIC_CMD_SET_IDI        0x0f    /* (DTI) lev I */
   #define SBIC_CMD_XLATE          0x18    /* (DT ) lev II */
   
                       /* Initiator state */
   #define SBIC_CMD_SET_ATN        0x02    /* (  I) lev I */
   #define SBIC_CMD_CLR_ACK        0x03    /* (  I) lev I */
   #define SBIC_CMD_XFER_PAD       0x19    /* (  I) lev II */
   #define SBIC_CMD_XFER_INFO      0x20    /* (  I) lev II */
   
                       /* Target state */
   #define SBIC_CMD_SND_DISC       0x0e    /* ( T ) lev II */
   #define SBIC_CMD_RCV_CMD        0x10    /* ( T ) lev II */
   #define SBIC_CMD_RCV_DATA       0x11    /* ( T ) lev II */
   #define SBIC_CMD_RCV_MSG_OUT    0x12    /* ( T ) lev II */
   #define SBIC_CMD_RCV            0x13    /* ( T ) lev II */
   #define SBIC_CMD_SND_STATUS     0x14    /* ( T ) lev II */
   #define SBIC_CMD_SND_DATA       0x15    /* ( T ) lev II */
   #define SBIC_CMD_SND_MSG_IN     0x16    /* ( T ) lev II */
   #define SBIC_CMD_SND            0x17    /* ( T ) lev II */
   
                       /* Disconnected state */
   #define SBIC_CMD_RESELECT       0x05    /* (D  ) lev II */
   #define SBIC_CMD_SEL_ATN        0x06    /* (D  ) lev II */
   #define SBIC_CMD_SEL            0x07    /* (D  ) lev II */
   #define SBIC_CMD_SEL_ATN_XFER   0x08    /* (D I) lev II */
   #define SBIC_CMD_SEL_XFER       0x09    /* (D I) lev II */
   #define SBIC_CMD_RESELECT_RECV  0x0a    /* (DT ) lev II */
   #define SBIC_CMD_RESELECT_SEND  0x0b    /* (DT ) lev II */
   #define SBIC_CMD_WAIT_SEL_RECV  0x0c    /* (DT ) lev II */
   
   
   #define PHASE_MASK              0x07    /* mask for psns/pctl phase */
   #define DATA_OUT_PHASE          0x00
   #define DATA_IN_PHASE           0x01
   #define CMD_PHASE               0x02
   #define STATUS_PHASE            0x03
   #define BUS_FREE_PHASE          0x04
   #define ARB_SEL_PHASE           0x05    /* Fuji chip combines bus arb with sel. */
   #define MESG_OUT_PHASE          0x06
   #define MESG_IN_PHASE           0x07
   
   #define SCSI_PHASE(reg)         ((reg) & PHASE_MASK)
   
   #define SCSI_STATUS_MASK        0x3e    /* Mask unused bits in status byte */
   
   /* approximate, but we won't do SBT on selects */
   #define wd33c93_isa_select(cmd)    (((cmd) > 0x5) && ((cmd) < 0xa))
   
   #define PAD(n)  char n;
   #define SBIC_MACHINE_DMA_MODE   SBIC_CTL_DMA
   
   typedef struct {
           volatile unsigned char  wd33c93_asr;    /* r : Aux Status Register */
   #define wd33c93_address         wd33c93_asr     /* w : desired register no */
           volatile unsigned char  wd33c93_value; /* rw: register value */
   } wd33c93_padded_ind_regmap_t;
   typedef volatile wd33c93_padded_ind_regmap_t *wd33c93_regmap_p;
   
   #define SBIC_ASR                0       /* offset to ASC register */
   #define SBIC_ADDR               0       /* offset to address reg */
   #define SBIC_VAL                1       /* offset to data register */
   
   #define wd33c93_read_reg(sc,regno,val)                                  \
       do {                                                                \
           bus_space_write_1((sc)->sc_regt,(sc)->sc_regh,SBIC_ADDR,(regno)); \
           (val) = bus_space_read_1((sc)->sc_regt,(sc)->sc_regh,SBIC_VAL); \
       } while (0)
   
   #define wd33c93_write_reg(sc,regno,val)                                 \
       do {                                                                \
           bus_space_write_1((sc)->sc_regt, (sc)->sc_regh, SBIC_ADDR, (regno)); \
           bus_space_write_1((sc)->sc_regt, (sc)->sc_regh, SBIC_VAL,  (val)); \
       } while (0)
   
   #define SET_SBIC_myid(sc,val)           wd33c93_write_reg(sc,SBIC_myid,val)
   #define GET_SBIC_myid(sc,val)           wd33c93_read_reg(sc,SBIC_myid,val)
   #define SET_SBIC_cdbsize(sc,val)        wd33c93_write_reg(sc,SBIC_cdbsize,val)
   #define GET_SBIC_cdbsize(sc,val)        wd33c93_read_reg(sc,SBIC_cdbsize,val)
   #define SET_SBIC_control(sc,val)        wd33c93_write_reg(sc,SBIC_control,val)
   #define GET_SBIC_control(sc,val)        wd33c93_read_reg(sc,SBIC_control,val)
   #define SET_SBIC_timeo(sc,val)          wd33c93_write_reg(sc,SBIC_timeo,val)
   #define GET_SBIC_timeo(sc,val)          wd33c93_read_reg(sc,SBIC_timeo,val)
   #define SET_SBIC_cdb1(sc,val)           wd33c93_write_reg(sc,SBIC_cdb1,val)
   #define GET_SBIC_cdb1(sc,val)           wd33c93_read_reg(sc,SBIC_cdb1,val)
   #define SET_SBIC_cdb2(sc,val)           wd33c93_write_reg(sc,SBIC_cdb2,val)
   #define GET_SBIC_cdb2(sc,val)           wd33c93_read_reg(sc,SBIC_cdb2,val)
   #define SET_SBIC_cdb3(sc,val)           wd33c93_write_reg(sc,SBIC_cdb3,val)
   #define GET_SBIC_cdb3(sc,val)           wd33c93_read_reg(sc,SBIC_cdb3,val)
   #define SET_SBIC_cdb4(sc,val)           wd33c93_write_reg(sc,SBIC_cdb4,val)
   #define GET_SBIC_cdb4(sc,val)           wd33c93_read_reg(sc,SBIC_cdb4,val)
   #define SET_SBIC_cdb5(sc,val)           wd33c93_write_reg(sc,SBIC_cdb5,val)
   #define GET_SBIC_cdb5(sc,val)           wd33c93_read_reg(sc,SBIC_cdb5,val)
   #define SET_SBIC_cdb6(sc,val)           wd33c93_write_reg(sc,SBIC_cdb6,val)
   #define GET_SBIC_cdb6(sc,val)           wd33c93_read_reg(sc,SBIC_cdb6,val)
   #define SET_SBIC_cdb7(sc,val)           wd33c93_write_reg(sc,SBIC_cdb7,val)
   #define GET_SBIC_cdb7(sc,val)           wd33c93_read_reg(sc,SBIC_cdb7,val)
   #define SET_SBIC_cdb8(sc,val)           wd33c93_write_reg(sc,SBIC_cdb8,val)
   #define GET_SBIC_cdb8(sc,val)           wd33c93_read_reg(sc,SBIC_cdb8,val)
   #define SET_SBIC_cdb9(sc,val)           wd33c93_write_reg(sc,SBIC_cdb9,val)
   #define GET_SBIC_cdb9(sc,val)           wd33c93_read_reg(sc,SBIC_cdb9,val)
   #define SET_SBIC_cdb10(sc,val)          wd33c93_write_reg(sc,SBIC_cdb10,val)
   #define GET_SBIC_cdb10(sc,val)          wd33c93_read_reg(sc,SBIC_cdb10,val)
   #define SET_SBIC_cdb11(sc,val)          wd33c93_write_reg(sc,SBIC_cdb11,val)
   #define GET_SBIC_cdb11(sc,val)          wd33c93_read_reg(sc,SBIC_cdb11,val)
   #define SET_SBIC_cdb12(sc,val)          wd33c93_write_reg(sc,SBIC_cdb12,val)
   #define GET_SBIC_cdb12(sc,val)          wd33c93_read_reg(sc,SBIC_cdb12,val)
   #define SET_SBIC_tlun(sc,val)           wd33c93_write_reg(sc,SBIC_tlun,val)
   #define GET_SBIC_tlun(sc,val)           wd33c93_read_reg(sc,SBIC_tlun,val)
   #define SET_SBIC_cmd_phase(sc,val)      wd33c93_write_reg(sc,SBIC_cmd_phase,val)
   #define GET_SBIC_cmd_phase(sc,val)      wd33c93_read_reg(sc,SBIC_cmd_phase,val)
   #define SET_SBIC_syn(sc,val)            wd33c93_write_reg(sc,SBIC_syn,val)
   #define GET_SBIC_syn(sc,val)            wd33c93_read_reg(sc,SBIC_syn,val)
   #define SET_SBIC_count_hi(sc,val)       wd33c93_write_reg(sc,SBIC_count_hi,val)
   #define GET_SBIC_count_hi(sc,val)       wd33c93_read_reg(sc,SBIC_count_hi,val)
   #define SET_SBIC_count_med(sc,val)      wd33c93_write_reg(sc,SBIC_count_med,val)
   #define GET_SBIC_count_med(sc,val)      wd33c93_read_reg(sc,SBIC_count_med,val)
   #define SET_SBIC_count_lo(sc,val)       wd33c93_write_reg(sc,SBIC_count_lo,val)
   #define GET_SBIC_count_lo(sc,val)       wd33c93_read_reg(sc,SBIC_count_lo,val)
   #define SET_SBIC_selid(sc,val)          wd33c93_write_reg(sc,SBIC_selid,val)
   #define GET_SBIC_selid(sc,val)          wd33c93_read_reg(sc,SBIC_selid,val)
   #define SET_SBIC_rselid(sc,val)         wd33c93_write_reg(sc,SBIC_rselid,val)
   #define GET_SBIC_rselid(sc,val)         wd33c93_read_reg(sc,SBIC_rselid,val)
   #define SET_SBIC_csr(sc,val)            wd33c93_write_reg(sc,SBIC_csr,val)
   #define GET_SBIC_csr(sc,val)            wd33c93_read_reg(sc,SBIC_csr,val)
   #define SET_SBIC_cmd(sc,val)            wd33c93_write_reg(sc,SBIC_cmd,val)
   #define GET_SBIC_cmd(sc,val)            wd33c93_read_reg(sc,SBIC_cmd,val)
   #define SET_SBIC_data(sc,val)           wd33c93_write_reg(sc,SBIC_data,val)
   #define GET_SBIC_data(sc,val)           wd33c93_read_reg(sc,SBIC_data,val)
   #define SET_SBIC_queue_tag(sc,val)      wd33c93_write_reg(sc,SBIC_queue_tag,val)
   #define GET_SBIC_queue_tag(sc,val)      wd33c93_read_reg(sc,SBIC_queue_tag,val)
   
   #define SBIC_TC_PUT(sc,val)                                             \
       do {                                                                \
           wd33c93_write_reg(sc,SBIC_count_hi,((val)>>16));                \
           bus_space_write_1((sc)->sc_regt, (sc)->sc_regh,                 \
                             SBIC_VAL, (val)>>8);                          \
           bus_space_write_1((sc)->sc_regt, (sc)->sc_regh,                 \
                             SBIC_VAL, (val));                             \
       } while (0)
   
   #define SBIC_TC_GET(sc,val)                                             \
       do {                                                                \
           wd33c93_read_reg(sc,SBIC_count_hi,(val));                       \
           (val) = ((val)<<8) | bus_space_read_1((sc)->sc_regt,            \
                                   (sc)->sc_regh,SBIC_VAL);                \
           (val) = ((val)<<8) | bus_space_read_1((sc)->sc_regt,            \
                                   (sc)->sc_regh,SBIC_VAL);                \
       } while (0)
   
   #define SBIC_LOAD_COMMAND(sc,cmd,cmdsize)                               \
       do {                                                                \
           int   n   = (cmdsize) - 1;                                      \
           char *ptr = (char *)(cmd);                                      \
           wd33c93_write_reg(regs, SBIC_cdb1, *ptr++);                     \
           while(n-- > 0)                                                  \
                   bus_space_write_1((sc)->sc_regt, (sc)->sc_regh,         \
                             SBIC_VAL, *ptr++); /* XXX write_multi */      \
       } while (0)
   
   #define GET_SBIC_asr(sc,val)                                            \
       do {                                                                \
           (val) = bus_space_read_1((sc)->sc_regt,(sc)->sc_regh,SBIC_ASR); \
       } while (0)
   
   
   #define WAIT_CIP(sc)                                                    \
       do {                                                                \
           while (bus_space_read_1((sc)->sc_regt,(sc)->sc_regh,            \
                           SBIC_ASR) & SBIC_ASR_CIP)                       \
                   /*nop*/;                                                \
       } while (0)
   
   /*
    * transmit a byte in programmed I/O mode
    */
   #define SEND_BYTE(sc, ch)                                               \
       do {                                                                \
           WAIT_CIP(sc);                                                   \
           SET_SBIC_cmd(sc, SBIC_CMD_SBT | SBIC_CMD_XFER_INFO);            \
           SBIC_WAIT(sc, SBIC_ASR_DBR, 0);                                 \
           SET_SBIC_data(sc, ch);                                          \
       } while (0)
   
   /*
    * receive a byte in programmed I/O mode
    */
   #define RECV_BYTE(sc, ch)                                               \
       do {                                                                \
           WAIT_CIP(sc);                                                   \
           SET_SBIC_cmd(sc, SBIC_CMD_SBT | SBIC_CMD_XFER_INFO);            \
           SBIC_WAIT(sc, SBIC_ASR_DBR, 0);                                 \
           GET_SBIC_data(sc, ch);                                          \
       } while (0)

Cache object: 52880283b4dddff07e7bccc6421d3ab9