/* $OpenBSD: hpibvar.h,v 1.6 1997/04/16 11:56:09 downsj Exp $ */ /* $NetBSD: hpibvar.h,v 1.10 1997/03/31 07:34:25 scottr Exp $ */ /* * Copyright (c) 1996, 1997 Jason R. Thorpe. All rights reserved. * Copyright (c) 1982, 1990, 1993 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND 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 REGENTS OR 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. * * @(#)hpibvar.h 8.1 (Berkeley) 6/10/93 */ #include #define HPIB_IPL(x) ((((x) >> 4) & 0x3) + 3) #define HPIBA 32 #define HPIBB 1 #define HPIBC 8 #define HPIBA_BA 21 #define HPIBC_BA 30 #define HPIBA_IPL 3 #define CSA_BA 0x1F #define IDS_WDMA 0x04 #define IDS_WRITE 0x08 #define IDS_IR 0x40 #define IDS_IE 0x80 #define IDS_DMA(x) (1 << (x)) #define C_SDC 0x04 /* Selected device clear */ #define C_SDC_P 0x04 /* with odd parity */ #define C_DCL 0x14 /* Universal device clear */ #define C_DCL_P 0x94 /* with odd parity */ #define C_LAG 0x20 /* Listener address group commands */ #define C_UNL 0x3f /* Universal unlisten */ #define C_UNL_P 0xbf /* with odd parity */ #define C_TAG 0x40 /* Talker address group commands */ #define C_UNA 0x5e /* Unaddress (master talk address?) */ #define C_UNA_P 0x5e /* with odd parity */ #define C_UNT 0x5f /* Universal untalk */ #define C_UNT_P 0xdf /* with odd parity */ #define C_SCG 0x60 /* Secondary group commands */ struct hpibbus_softc; /* * Each of the HP-IB controller drivers fills in this structure, which * is used by the indirect driver to call controller-specific functions. */ struct hpib_controller { void (*hpib_reset) __P((struct hpibbus_softc *)); int (*hpib_send) __P((struct hpibbus_softc *, int, int, void *, int)); int (*hpib_recv) __P((struct hpibbus_softc *, int, int, void *, int)); int (*hpib_ppoll) __P((struct hpibbus_softc *)); void (*hpib_ppwatch) __P((void *)); void (*hpib_go) __P((struct hpibbus_softc *, int, int, void *, int, int, int)); void (*hpib_done) __P((struct hpibbus_softc *)); int (*hpib_intr) __P((void *)); }; /* * Attach an HP-IB bus to an HP-IB controller. */ struct hpibdev_attach_args { struct hpib_controller *ha_ops; /* controller ops vector */ int ha_type; /* XXX */ int ha_ba; struct hpibbus_softc **ha_softcpp; /* XXX */ }; /* * Attach an HP-IB device to an HP-IB bus. */ struct hpibbus_attach_args { u_int16_t ha_id; /* device id */ int ha_slave; /* HP-IB bus slave */ int ha_punit; /* physical unit on slave */ }; /* Locator short-hand */ #define hpibbuscf_slave cf_loc[0] #define hpibbuscf_punit cf_loc[1] #define HPIBBUS_SLAVE_UNK -1 #define HPIBBUS_PUNIT_UNK -1 #define HPIB_NSLAVES 8 /* number of slaves on a bus */ #define HPIB_NPUNITS 2 /* number of punits per slave */ /* * An HP-IB job queue entry. Slave drivers have one of these used * to queue requests with the controller. */ struct hpibqueue { TAILQ_ENTRY(hpibqueue) hq_list; /* entry on queue */ void *hq_softc; /* slave's softc */ int hq_slave; /* slave on bus */ /* * Callbacks used to start and stop the slave driver. */ void (*hq_start) __P((void *)); void (*hq_go) __P((void *)); void (*hq_intr) __P((void *)); }; struct dmaqueue; /* * Software state per HP-IB bus. */ struct hpibbus_softc { struct device sc_dev; /* generic device glue */ struct hpib_controller *sc_ops; /* controller ops vector */ volatile int sc_flags; /* misc flags */ struct dmaqueue *sc_dq; TAILQ_HEAD(, hpibqueue) sc_queue; int sc_ba; int sc_type; char *sc_addr; int sc_count; int sc_curcnt; /* * HP-IB is an indirect bus; this cheezy resource map * keeps track of slave/punit allocations. */ char sc_rmap[HPIB_NSLAVES][HPIB_NPUNITS]; }; /* sc_flags */ #define HPIBF_IO 0x1 #define HPIBF_DONE 0x2 #define HPIBF_PPOLL 0x4 #define HPIBF_READ 0x8 #define HPIBF_TIMO 0x10 #define HPIBF_DMA16 0x8000 #ifdef _KERNEL extern caddr_t internalhpib; extern int hpibtimeout; extern int hpibdmathresh; void hpibreset __P((int)); int hpibsend __P((int, int, int, void *, int)); int hpibrecv __P((int, int, int, void *, int)); int hpibustart __P((int)); void hpibstart __P((void *)); void hpibgo __P((int, int, int, void *, int, int, int)); void hpibdone __P((void *)); int hpibpptest __P((int, int)); void hpibppclear __P((int)); void hpibawait __P((int)); int hpibswait __P((int, int)); int hpibid __P((int, int)); int hpibreq __P((struct device *, struct hpibqueue *)); void hpibfree __P((struct device *, struct hpibqueue *)); int hpibbus_alloc __P((struct hpibbus_softc *, int, int)); void hpibbus_free __P((struct hpibbus_softc *, int, int)); int hpibintr __P((void *)); int hpibdevprint __P((void *, const char *)); #endif