FreeBSD/Linux Kernel Cross Reference
sys/dev/qbus/rfreg.h

     /*      $NetBSD: rfreg.h,v 1.4 2005/12/11 12:23:29 christos Exp $       */
     /*
      * Copyright (c) 2002 Jochen Kunz.
      * All rights reserved.
      *
      * 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. The name of Jochen Kunz may not be used to endorse or promote
     *    products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ
     * ``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 JOCHEN KUNZ
     * 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.
     */
    
    
    
    /* Registers in Uni/QBus I/O space. */
    #define RX2CS   0       /* Command and Status Register */
    #define RX2DB   2       /* Data Buffer Register */
    /* RX2DB is depending on context: */
    #define RX2BA   2       /* Bus Address Register */
    #define RX2TA   2       /* Track Address Register */
    #define RX2SA   2       /* Sector Address Register */
    #define RX2WC   2       /* Word Count Register */
    #define RX2ES   2       /* Error and Status Register */
    
    
    /* Bitdefinitions of CSR. */
    #define RX2CS_ERR       0x8000  /* Error                                RO */
    #define RX2CS_INIT      0x4000  /* Initialize                           WO */
    #define RX2CS_UAEBH     0x2000  /* Unibus address extension high bit    WO */
    #define RX2CS_UAEBI     0x1000  /* Unibus address extension low bit     WO */
    #define RX2CS_RX02      0x0800  /* RX02                                 RO */
    /*                      0x0400     Not Used                             -- */
    /*                      0x0200     Not Used                             -- */
    #define RX2CS_DD        0x0100  /* Double Density                       R/W */
    #define RX2CS_TR        0x0080  /* Transfer Request                     RO */
    #define RX2CS_IE        0x0040  /* Interrupt Enable                     R/W */
    #define RX2CS_DONE      0x0020  /* Done                                 RO */
    #define RX2CS_US        0x0010  /* Unit Select                          WO */
    #define RX2CS_FCH       0x0008  /* Function Code high bit               WO */
    #define RX2CS_FCM       0x0004  /* Function Code mid bit                WO */
    #define RX2CS_FCL       0x0002  /* Function Code low bit                WO */
    #define RX2CS_GO        0x0001  /* Go                                   WO */
    #define RX2CS_NU        0x0600  /* not used bits                        -- */
    
    
    #define RX2CS_UAEB      ( RX2CS_UAEBH | RX2CS_UAEBI )
    #define RX2CS_FC        ( RX2CS_FCH | RX2CS_FCM | RX2CS_FCL )
    
    
    /* Commands of the controller and parameter cont. */
    #define RX2CS_FBUF      001     /* Fill Buffer, word count and bus address */
    #define RX2CS_EBUF      003     /* Empty Buffer, word count and bus address */
    #define RX2CS_WSEC      005     /* Write Sector, sector and track */
    #define RX2CS_RSEC      007     /* Read Sector, sector and track */
    #define RX2CS_SMD       011     /* Set Media Density, ??? */
    #define RX2CS_RSTAT     013     /* Read Status, no params */
    #define RX2CS_WDDS      015     /* Write Deleted Data Sector, sector and track */
    #define RX2CS_REC       017     /* Read Error Code, bus address */
    
    
    /* Track Address Register */
    #define RX2TA_MASK      0x7f
    
    
    /* Sector Address Register */
    #define RX2SA_MASK      0x1f
    
    
    /* Word Count Register */
    #define RX2WC_MASK      0x7f
    
    
    /* Bitdefinitions of RX2ES. */
    /*                      <15-12> Not Used                -- */
    #define RX2ES_NEM       0x0800  /* Non-Existend Memory  RO */
    #define RX2ES_WCO       0x0400  /* Word Count Overflow  RO */
    /*                      0x0200     Not Used             RO */
    #define RX2ES_US        0x0010  /* Unit Select          RO */
    #define RX2ES_RDY       0x0080  /* Ready                RO */
    #define RX2ES_DEL       0x0040  /* Deleted Data         RO */
    #define RX2ES_DD        0x0020  /* Double Density       RO */
   #define RX2ES_DE        0x0010  /* Density Error        RO */
   #define RX2ES_ACL       0x0008  /* AC Lost              RO */
   #define RX2ES_ID        0x0004  /* Initialize Done      RO */
   /*                      0x0002     Not Used             -- */
   #define RX2ES_CRCE      0x0001  /* CRC Error            RO */
   #define RX2ES_NU        0xF202  /* not used bits        -- */
   
   
   #define RX2_TRACKS      77      /* number of tracks */
   #define RX2_SECTORS     26      /* number of sectors / track */
   #define RX2_BYTE_SD     128     /* number of bytes / sector in single density */
   #define RX2_BYTE_DD     256     /* number of bytes / sector in double density */
   #define RX2_HEADS       1       /* number of heads */
   

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