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#ifndef _B004_H
#define _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
*/
#include <sys/ioctl.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
/*
* Additonal 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
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