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155 lines
5.2 KiB
C
155 lines
5.2 KiB
C
#ifndef _B004_H
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#define _B004_H
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/*
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* b004.h
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*
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* Based on the Linux driver, by
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* Christoph Niemann (niemann@swt.ruhr-uni-bochum.de)
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*
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* Ported to FreeBSD by Luigi Rizzo (luigi@iet.unipi.it)
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* and Lorenzo Vicisano (l.vicisano@iet.unipi.it)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christoph Niemann,
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* Luigi Rizzo and Lorenzo Vicisano - Dipartimento di Ingegneria
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* dell'Informazione
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* 4. The names of these contributors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Works for FreeBSD 1.1.5
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*/
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#include <sys/ioctl.h>
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/*
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* device status FLAGS
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*/
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#define B004_EXIST 0x0001 /* Is a B004-Board with at least one
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Transputer present ? */
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#define B004_BUSY 0x0002 /* Is the B004-board in use ? */
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/*
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* IOCTL numbers
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*/
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#define B004RESET _IO ('Q', 0)
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/* Reset transputer(s) */
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#define B004WRITEABLE _IOR ('Q', 1, int)
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/* Return C012 Output Ready */
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#define B004READABLE _IOR ('Q', 2, int)
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/* Return C012 Data Present */
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#define B004ANALYSE _IO ('Q', 3)
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/* Switch transputer(s) to ANALYSE mode */
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#define B004ERROR _IOR ('Q', 4, int)
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/* Return 1 on ERROR set */
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#define B004TIMEOUT _IOW ('Q', 5, int)
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/* Set TIMEOUT for subsequent writing or
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reading call, value in ticks, initial
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0 = no timeout (read/write blocking)
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"open" sets timeout to 0 */
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#define B004_INIT_TIMEOUT 0 /* No timeout yet */
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/*
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* Registers DISPLACEMENT
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*/
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#define B004_IDR_OFFSET 0 /* Input Data Register */
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#define B004_ODR_OFFSET 1 /* Output Data Register */
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#define B004_ISR_OFFSET 2 /* Input Status Register */
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#define B004_OSR_OFFSET 3 /* Output Status Register */
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#define B004_RESET_OFFSET 16 /* Reset/Error Register */
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#define B004_ERROR_OFFSET B004_RESET_OFFSET
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#define B004_ANALYSE_OFFSET 17 /* Analyse Register */
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#define B008_DMA_OFFSET 18 /* B008: DMA request register */
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#define B008_INT_OFFSET 19 /* B008: Interrupt control reg */
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struct b004_struct {
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int flags; /* various flags */
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int idr; /* address of the input data register */
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int odr; /* address if the output data register */
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int isr; /* address of the input status register */
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int osr; /* address of the output status register */
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unsigned int timeout; /* timeout for writing/reading the link */
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int boardtype; /* what kind of board is installed */
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void *devfs_token[8][4]; /* tokens for 4 types for 8 ports */
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};
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/*
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* Id's for the supported boards
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*/
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#define B004 1
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#define B008 2
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/*
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* Defines for easier access to the b004_table.
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*/
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#define B004_F(minor) b004_table[minor].flags
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#define B004_TIMEOUT(minor) b004_table[minor].timeout
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#define B004_BASE(minor) B004_IDR(minor)
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#define B004_IDR(minor) b004_table[minor].idr
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#define B004_ODR(minor) b004_table[minor].odr
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#define B004_ISR(minor) b004_table[minor].isr
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#define B004_OSR(minor) b004_table[minor].osr
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#define B004_WAIT(minor) b004_table[minor].wait
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#define B004_BOARDTYPE(minor) b004_table[minor].boardtype
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/*
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* Additional defines for B008-boards
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*/
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#define B008_DMA(minor) b004_table[minor].int
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#define B008_INT(minor) b004_table[minor].dma
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/*
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* Number of tries to access isr or osr before reading or writing sleeps
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*/
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#define B004_MAXTRY 200
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/*
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* Maximum number of bytes to transfer at once
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*/
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#define B004_MAX_BYTES 2048
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/*
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* bit defines for C012 status ports at base + 2/3
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* accessed with B004_IS, B004_OS, which gets the byte...
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*/
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#define B004_READBYTE 1
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#define B004_WRITEBYTE 1
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/*
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* bit defines for C012 reset/error port at base + 16
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*/
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#define B004_ASSERT_RESET 0x01 /* resetting the transputer */
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#define B004_DEASSERT_RESET 0x00
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#define B004_TEST_ERROR 0x01 /* for testing the transputer's error flag */
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/*
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* bit defines for C012 analyse port at base + 17
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*/
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#define B004_ASSERT_ANALYSE 0x01 /* switch transputer to analyse-mode */
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#define B004_DEASSERT_ANALYSE 0x00
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#endif
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