215 lines
7.0 KiB
C
215 lines
7.0 KiB
C
/* $NetBSD: hpibvar.h,v 1.20 2008/04/28 20:23:19 martin Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)hpibvar.h 8.1 (Berkeley) 6/10/93
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*/
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#include <sys/queue.h>
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#define HPIB_IPL(x) ((((x) >> 4) & 0x3) + 3)
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#define HPIBA 32
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#define HPIBB 1
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#define HPIBC 8
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#define HPIBA_BA 21
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#define HPIBC_BA 30
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#define HPIBA_IPL 3
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#define CSA_BA 0x1F
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#define IDS_WDMA 0x04
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#define IDS_WRITE 0x08
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#define IDS_IR 0x40
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#define IDS_IE 0x80
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#define IDS_DMA(x) (1 << (x))
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#define C_SDC 0x04 /* Selected device clear */
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#define C_SDC_P 0x04 /* with odd parity */
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#define C_DCL 0x14 /* Universal device clear */
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#define C_DCL_P 0x94 /* with odd parity */
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#define C_LAG 0x20 /* Listener address group commands */
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#define C_UNL 0x3f /* Universal unlisten */
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#define C_UNL_P 0xbf /* with odd parity */
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#define C_TAG 0x40 /* Talker address group commands */
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#define C_UNA 0x5e /* Unaddress (master talk address?) */
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#define C_UNA_P 0x5e /* with odd parity */
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#define C_UNT 0x5f /* Universal untalk */
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#define C_UNT_P 0xdf /* with odd parity */
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#define C_SCG 0x60 /* Secondary group commands */
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struct hpibbus_softc;
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/*
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* Each of the HP-IB controller drivers fills in this structure, which
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* is used by the indirect driver to call controller-specific functions.
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*/
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struct hpib_controller {
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void (*hpib_reset)(struct hpibbus_softc *);
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int (*hpib_send)(struct hpibbus_softc *,
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int, int, void *, int);
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int (*hpib_recv)(struct hpibbus_softc *,
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int, int, void *, int);
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int (*hpib_ppoll)(struct hpibbus_softc *);
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void (*hpib_ppwatch)(void *);
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void (*hpib_go)(struct hpibbus_softc *,
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int, int, void *, int, int, int);
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void (*hpib_done)(struct hpibbus_softc *);
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int (*hpib_intr)(void *);
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};
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/*
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* Attach an HP-IB bus to an HP-IB controller.
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*/
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struct hpibdev_attach_args {
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struct hpib_controller *ha_ops; /* controller ops vector */
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int ha_type; /* XXX */
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int ha_ba;
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struct hpibbus_softc **ha_softcpp; /* XXX */
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};
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/*
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* Attach an HP-IB device to an HP-IB bus.
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*/
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struct hpibbus_attach_args {
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uint16_t ha_id; /* device id */
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int ha_slave; /* HP-IB bus slave */
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int ha_punit; /* physical unit on slave */
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};
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/* Locator short-hand */
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#include "locators.h"
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#define hpibbuscf_slave cf_loc[HPIBBUSCF_SLAVE]
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#define hpibbuscf_punit cf_loc[HPIBBUSCF_PUNIT]
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#define HPIB_NSLAVES 8 /* number of slaves on a bus */
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#define HPIB_NPUNITS 2 /* number of punits per slave */
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/*
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* An HP-IB job queue entry. Slave drivers have one of these used
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* to queue requests with the controller.
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*/
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struct hpibqueue {
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TAILQ_ENTRY(hpibqueue) hq_list; /* entry on queue */
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void *hq_softc; /* slave's softc */
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int hq_slave; /* slave on bus */
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/*
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* Callbacks used to start and stop the slave driver.
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*/
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void (*hq_start)(void *);
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void (*hq_go)(void *);
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void (*hq_intr)(void *);
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};
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struct dmaqueue;
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/*
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* Software state per HP-IB bus.
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*/
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struct hpibbus_softc {
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device_t sc_dev; /* generic device glue */
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struct hpib_controller *sc_ops; /* controller ops vector */
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volatile int sc_flags; /* misc flags */
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struct dmaqueue *sc_dq;
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TAILQ_HEAD(, hpibqueue) sc_queue;
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int sc_ba;
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int sc_type;
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char *sc_addr;
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int sc_count;
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int sc_curcnt;
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/*
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* HP-IB is an indirect bus; this cheezy resource map
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* keeps track of slave/punit allocations.
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*/
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char sc_rmap[HPIB_NSLAVES][HPIB_NPUNITS];
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};
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/* sc_flags */
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#define HPIBF_IO 0x1
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#define HPIBF_DONE 0x2
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#define HPIBF_PPOLL 0x4
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#define HPIBF_READ 0x8
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#define HPIBF_TIMO 0x10
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#define HPIBF_DMA16 0x8000
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#ifdef _KERNEL
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extern void *internalhpib;
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extern int hpibtimeout;
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extern int hpibdmathresh;
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void hpibreset(int);
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int hpibsend(int, int, int, void *, int);
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int hpibrecv(int, int, int, void *, int);
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int hpibustart(int);
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void hpibgo(int, int, int, void *, int, int, int);
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int hpibpptest(int, int);
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void hpibppclear(int);
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void hpibawait(int);
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int hpibswait(int, int);
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int hpibid(int, int);
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int hpibreq(struct device *, struct hpibqueue *);
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void hpibfree(struct device *, struct hpibqueue *);
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int hpibintr(void *);
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int hpibdevprint(void *, const char *);
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#endif
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