Annotation of sys/arch/hp300/dev/hpibvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: hpibvar.h,v 1.10 2005/11/18 00:09:15 miod Exp $ */
! 2: /* $NetBSD: hpibvar.h,v 1.10 1997/03/31 07:34:25 scottr Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1996, 1997 Jason R. Thorpe. All rights reserved.
! 6: * Copyright (c) 1982, 1990, 1993
! 7: * The Regents of the University of California. All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. Neither the name of the University nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: *
! 33: * @(#)hpibvar.h 8.1 (Berkeley) 6/10/93
! 34: */
! 35:
! 36: #include <sys/queue.h>
! 37:
! 38: #define HPIB_IPL(x) ((((x) >> 4) & 0x3) + 3)
! 39:
! 40: #define HPIBA 32
! 41: #define HPIBB 1
! 42: #define HPIBC 8
! 43: #define HPIBA_BA 21
! 44: #define HPIBC_BA 30
! 45: #define HPIBA_IPL 3
! 46:
! 47: #define CSA_BA 0x1F
! 48:
! 49: #define IDS_WDMA 0x04
! 50: #define IDS_WRITE 0x08
! 51: #define IDS_IR 0x40
! 52: #define IDS_IE 0x80
! 53: #define IDS_DMA(x) (1 << (x))
! 54:
! 55: #define C_SDC 0x04 /* Selected device clear */
! 56: #define C_SDC_P 0x04 /* with odd parity */
! 57: #define C_DCL 0x14 /* Universal device clear */
! 58: #define C_DCL_P 0x94 /* with odd parity */
! 59: #define C_LAG 0x20 /* Listener address group commands */
! 60: #define C_UNL 0x3f /* Universal unlisten */
! 61: #define C_UNL_P 0xbf /* with odd parity */
! 62: #define C_TAG 0x40 /* Talker address group commands */
! 63: #define C_UNA 0x5e /* Unaddress (master talk address?) */
! 64: #define C_UNA_P 0x5e /* with odd parity */
! 65: #define C_UNT 0x5f /* Universal untalk */
! 66: #define C_UNT_P 0xdf /* with odd parity */
! 67: #define C_SCG 0x60 /* Secondary group commands */
! 68:
! 69: struct hpibbus_softc;
! 70:
! 71: /*
! 72: * Each of the HP-IB controller drivers fills in this structure, which
! 73: * is used by the indirect driver to call controller-specific functions.
! 74: */
! 75: struct hpib_controller {
! 76: void (*hpib_reset)(struct hpibbus_softc *);
! 77: int (*hpib_send)(struct hpibbus_softc *,
! 78: int, int, void *, int);
! 79: int (*hpib_recv)(struct hpibbus_softc *,
! 80: int, int, void *, int);
! 81: int (*hpib_ppoll)(struct hpibbus_softc *);
! 82: void (*hpib_ppwatch)(void *);
! 83: void (*hpib_go)(struct hpibbus_softc *,
! 84: int, int, void *, int, int, int);
! 85: void (*hpib_done)(struct hpibbus_softc *);
! 86: int (*hpib_intr)(void *);
! 87: };
! 88:
! 89: /*
! 90: * Attach an HP-IB bus to an HP-IB controller.
! 91: */
! 92: struct hpibdev_attach_args {
! 93: struct hpib_controller *ha_ops; /* controller ops vector */
! 94: int ha_type; /* XXX */
! 95: int ha_ba;
! 96: struct hpibbus_softc **ha_softcpp; /* XXX */
! 97: };
! 98:
! 99: /*
! 100: * Attach an HP-IB device to an HP-IB bus.
! 101: */
! 102: struct hpibbus_attach_args {
! 103: u_int16_t ha_id; /* device id */
! 104: int ha_slave; /* HP-IB bus slave */
! 105: int ha_punit; /* physical unit on slave */
! 106: };
! 107:
! 108: /* Locator short-hand */
! 109: #define hpibbuscf_slave cf_loc[0]
! 110: #define hpibbuscf_punit cf_loc[1]
! 111:
! 112: #define HPIBBUS_SLAVE_UNK -1
! 113: #define HPIBBUS_PUNIT_UNK -1
! 114:
! 115: #define HPIB_NSLAVES 8 /* number of slaves on a bus */
! 116: #define HPIB_NPUNITS 2 /* number of punits per slave */
! 117:
! 118: /*
! 119: * An HP-IB job queue entry. Slave drivers have one of these used
! 120: * to queue requests with the controller.
! 121: */
! 122: struct hpibqueue {
! 123: TAILQ_ENTRY(hpibqueue) hq_list; /* entry on queue */
! 124: void *hq_softc; /* slave's softc */
! 125: int hq_slave; /* slave on bus */
! 126:
! 127: /*
! 128: * Callbacks used to start and stop the slave driver.
! 129: */
! 130: void (*hq_start)(void *);
! 131: void (*hq_go)(void *);
! 132: void (*hq_intr)(void *);
! 133: };
! 134:
! 135: struct dmaqueue;
! 136:
! 137: /*
! 138: * Software state per HP-IB bus.
! 139: */
! 140: struct hpibbus_softc {
! 141: struct device sc_dev; /* generic device glue */
! 142: struct hpib_controller *sc_ops; /* controller ops vector */
! 143: volatile int sc_flags; /* misc flags */
! 144: struct dmaqueue *sc_dq;
! 145: TAILQ_HEAD(, hpibqueue) sc_queue;
! 146: int sc_ba;
! 147: int sc_type;
! 148: char *sc_addr;
! 149: int sc_count;
! 150: int sc_curcnt;
! 151: };
! 152:
! 153: /* sc_flags */
! 154: #define HPIBF_IO 0x1
! 155: #define HPIBF_DONE 0x2
! 156: #define HPIBF_PPOLL 0x4
! 157: #define HPIBF_READ 0x8
! 158: #define HPIBF_TIMO 0x10
! 159: #define HPIBF_DMA16 0x8000
! 160:
! 161: /*
! 162: * Description structure for CS/80 devices.
! 163: */
! 164:
! 165: struct cs80_describe {
! 166: u_int d_iuw:16, /* controller: installed unit word */
! 167: d_cmaxxfr:16, /* controller: max transfer rate (Kb) */
! 168: d_ctype:8, /* controller: controller type */
! 169: d_utype:8, /* unit: unit type */
! 170: d_name:24, /* unit: name (6 BCD digits) */
! 171: d_sectsize:16, /* unit: # of bytes per block (sector) */
! 172: d_blkbuf:8, /* unit: # of blocks which can be buffered */
! 173: d_burstsize:8, /* unit: recommended burst size */
! 174: d_blocktime:16, /* unit: block time (u-sec) */
! 175: d_uavexfr:16, /* unit: average transfer rate (Kb) */
! 176: d_retry:16, /* unit: optimal retry time (1/100-sec) */
! 177: d_access:16, /* unit: access time param (1/100-sec) */
! 178: d_maxint:8, /* unit: maximum interleave */
! 179: d_fvbyte:8, /* unit: fixed volume byte */
! 180: d_rvbyte:8, /* unit: removable volume byte */
! 181: d_maxcyl:24, /* volume: maximum cylinder */
! 182: d_maxhead:8, /* volume: maximum head */
! 183: d_maxsect:16, /* volume: maximum sector on track */
! 184: d_maxvsecth:16, /* volume: maximum sector on volume (MSW) */
! 185: d_maxvsectl:32, /* volume: maximum sector on volume (LSWs) */
! 186: d_interleave:8; /* volume: current interleave */
! 187: } __packed;
! 188:
! 189: #ifdef _KERNEL
! 190: extern caddr_t internalhpib;
! 191: extern int hpibtimeout;
! 192: extern int hpibdmathresh;
! 193:
! 194: void hpibreset(int);
! 195: int hpibsend(int, int, int, void *, int);
! 196: int hpibrecv(int, int, int, void *, int);
! 197: int hpibustart(int);
! 198: void hpibstart(void *);
! 199: void hpibgo(int, int, int, void *, int, int, int);
! 200: void hpibdone(void *);
! 201: int hpibpptest(int, int);
! 202: void hpibppclear(int);
! 203: void hpibawait(int);
! 204: int hpibswait(int, int);
! 205: int hpibid(int, int);
! 206:
! 207: int hpibreq(struct device *, struct hpibqueue *);
! 208: void hpibfree(struct device *, struct hpibqueue *);
! 209:
! 210: int hpibintr(void *);
! 211: int hpibdevprint(void *, const char *);
! 212: #endif
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