FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/b004.h

     /*
      * b004.h
      *
      * Based on the Linux driver, by
      * Christoph Niemann (niemann@swt.ruhr-uni-bochum.de)
      *
      * Ported to FreeBSD by Luigi Rizzo (luigi@iet.unipi.it)
      * and Lorenzo Vicisano (l.vicisano@iet.unipi.it)
      *
     * 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 Christoph Niemann,
     *      Luigi Rizzo and Lorenzo Vicisano - Dipartimento di Ingegneria
     *              dell'Informazione
     * 4. The names of these contributors may not be used to endorse or promote
     *  products derived from this software without specific prior written
     *  permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE 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 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.
     *
     * Works for FreeBSD 1.1.5
     */
    
    #ifndef _I386_ISA_B004_H_
    #define _I386_ISA_B004_H_
    
    #include <sys/ioccom.h>
    
    /*
     * device status FLAGS
     */
    #define B004_EXIST              0x0001  /* Is a B004-Board with at least one
                                               Transputer present ? */
    #define B004_BUSY               0x0002  /* Is the B004-board in use ? */
    
    /*
     * IOCTL numbers
     */
    #define B004RESET               _IO  ('Q', 0)
                                    /* Reset transputer(s) */
    #define B004WRITEABLE           _IOR ('Q', 1, int)
                                    /* Return C012 Output Ready */
    #define B004READABLE            _IOR ('Q', 2, int)
                                    /* Return C012 Data Present */
    #define B004ANALYSE             _IO  ('Q', 3)
                                    /* Switch transputer(s) to ANALYSE mode */
    #define B004ERROR               _IOR ('Q', 4, int)
                                    /* Return 1 on ERROR set */
    #define B004TIMEOUT             _IOW ('Q', 5, int)
                                    /* Set TIMEOUT for subsequent writing or
                                       reading call, value in ticks, initial
                                       0 = no timeout (read/write blocking)
                                       "open" sets timeout to 0 */
    
    
    #define B004_INIT_TIMEOUT       0  /* No timeout yet */
    
    /*
     * Registers DISPLACEMENT
     */
    #define B004_IDR_OFFSET         0               /* Input Data Register */
    #define B004_ODR_OFFSET         1               /* Output Data Register */
    #define B004_ISR_OFFSET         2               /* Input Status Register */
    #define B004_OSR_OFFSET         3               /* Output Status Register */
    #define B004_RESET_OFFSET       16              /* Reset/Error Register */
    #define B004_ERROR_OFFSET       B004_RESET_OFFSET
    #define B004_ANALYSE_OFFSET     17              /* Analyse Register */
    #define B008_DMA_OFFSET         18              /* B008: DMA request register */
    #define B008_INT_OFFSET         19              /* B008: Interrupt control reg */
    
    struct b004_struct {
            int flags;              /* various flags */
            int idr;                /* address of the input data register */
            int odr;                /* address if the output data register */
            int isr;                /* address of the input status register */
            int osr;                /* address of the output status register */
            unsigned int timeout;   /* timeout for writing/reading the link */
            int boardtype;          /* what kind of board is installed */
            void *devfs_token[8][4]; /* tokens for 4 types for 8 ports */
    };
    
    /*
    * Id's for the supported boards
    */
   #define B004 1
   #define B008 2
   
   /*
    * Defines for easier access to the b004_table.
    */
   #define B004_F(minor)                   b004_table[minor].flags
   #define B004_TIMEOUT(minor)             b004_table[minor].timeout
   #define B004_BASE(minor)                B004_IDR(minor)
   #define B004_IDR(minor)                 b004_table[minor].idr
   #define B004_ODR(minor)                 b004_table[minor].odr
   #define B004_ISR(minor)                 b004_table[minor].isr
   #define B004_OSR(minor)                 b004_table[minor].osr
   #define B004_WAIT(minor)                b004_table[minor].wait
   #define B004_BOARDTYPE(minor)           b004_table[minor].boardtype
   
   /*
    * Additional defines for B008-boards
    */
   #define B008_DMA(minor)                 b004_table[minor].int
   #define B008_INT(minor)                 b004_table[minor].dma
   
   /*
    * Number of tries to access isr or osr before reading or writing sleeps
    */
   #define B004_MAXTRY                     200
   
   /*
    * Maximum number of bytes to transfer at once
    */
   #define B004_MAX_BYTES                  2048
   
   /*
    * bit defines for C012 status ports at base + 2/3
    * accessed with B004_IS, B004_OS, which gets the byte...
    */
   #define B004_READBYTE   1
   #define B004_WRITEBYTE  1
   
   /*
    * bit defines for C012 reset/error port at base + 16
    */
   #define B004_ASSERT_RESET       0x01    /* resetting the transputer */
   #define B004_DEASSERT_RESET     0x00
   #define B004_TEST_ERROR         0x01    /* for testing the transputer's error flag */
   
   /*
    * bit defines for C012 analyse port at base + 17
    */
   #define B004_ASSERT_ANALYSE     0x01    /* switch transputer to analyse-mode */
   #define B004_DEASSERT_ANALYSE   0x00
   
   #endif /* !_I386_ISA_B004_H_ */

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