hpibvar.h revision 1.12
1 /* $NetBSD: hpibvar.h,v 1.12 1997/07/18 03:38:36 jtk Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Jason R. Thorpe. All rights reserved. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)hpibvar.h 8.1 (Berkeley) 6/10/93 37 */ 38 39 #include <sys/queue.h> 40 41 #define HPIB_IPL(x) ((((x) >> 4) & 0x3) + 3) 42 43 #define HPIBA 32 44 #define HPIBB 1 45 #define HPIBC 8 46 #define HPIBA_BA 21 47 #define HPIBC_BA 30 48 #define HPIBA_IPL 3 49 50 #define CSA_BA 0x1F 51 52 #define IDS_WDMA 0x04 53 #define IDS_WRITE 0x08 54 #define IDS_IR 0x40 55 #define IDS_IE 0x80 56 #define IDS_DMA(x) (1 << (x)) 57 58 #define C_SDC 0x04 /* Selected device clear */ 59 #define C_SDC_P 0x04 /* with odd parity */ 60 #define C_DCL 0x14 /* Universal device clear */ 61 #define C_DCL_P 0x94 /* with odd parity */ 62 #define C_LAG 0x20 /* Listener address group commands */ 63 #define C_UNL 0x3f /* Universal unlisten */ 64 #define C_UNL_P 0xbf /* with odd parity */ 65 #define C_TAG 0x40 /* Talker address group commands */ 66 #define C_UNA 0x5e /* Unaddress (master talk address?) */ 67 #define C_UNA_P 0x5e /* with odd parity */ 68 #define C_UNT 0x5f /* Universal untalk */ 69 #define C_UNT_P 0xdf /* with odd parity */ 70 #define C_SCG 0x60 /* Secondary group commands */ 71 72 struct hpibbus_softc; 73 74 /* 75 * Each of the HP-IB controller drivers fills in this structure, which 76 * is used by the indirect driver to call controller-specific functions. 77 */ 78 struct hpib_controller { 79 void (*hpib_reset) __P((struct hpibbus_softc *)); 80 int (*hpib_send) __P((struct hpibbus_softc *, 81 int, int, void *, int)); 82 int (*hpib_recv) __P((struct hpibbus_softc *, 83 int, int, void *, int)); 84 int (*hpib_ppoll) __P((struct hpibbus_softc *)); 85 void (*hpib_ppwatch) __P((void *)); 86 void (*hpib_go) __P((struct hpibbus_softc *, 87 int, int, void *, int, int, int)); 88 void (*hpib_done) __P((struct hpibbus_softc *)); 89 int (*hpib_intr) __P((void *)); 90 }; 91 92 /* 93 * Attach an HP-IB bus to an HP-IB controller. 94 */ 95 struct hpibdev_attach_args { 96 struct hpib_controller *ha_ops; /* controller ops vector */ 97 int ha_type; /* XXX */ 98 int ha_ba; 99 struct hpibbus_softc **ha_softcpp; /* XXX */ 100 }; 101 102 /* 103 * Attach an HP-IB device to an HP-IB bus. 104 */ 105 struct hpibbus_attach_args { 106 u_int16_t ha_id; /* device id */ 107 int ha_slave; /* HP-IB bus slave */ 108 int ha_punit; /* physical unit on slave */ 109 }; 110 111 /* Locator short-hand */ 112 #include "locators.h" 113 114 #define hpibbuscf_slave cf_loc[HPIBBUSCF_SLAVE] 115 #define hpibbuscf_punit cf_loc[HPIBBUSCF_PUNIT] 116 117 #define HPIB_NSLAVES 8 /* number of slaves on a bus */ 118 #define HPIB_NPUNITS 2 /* number of punits per slave */ 119 120 /* 121 * An HP-IB job queue entry. Slave drivers have one of these used 122 * to queue requests with the controller. 123 */ 124 struct hpibqueue { 125 TAILQ_ENTRY(hpibqueue) hq_list; /* entry on queue */ 126 void *hq_softc; /* slave's softc */ 127 int hq_slave; /* slave on bus */ 128 129 /* 130 * Callbacks used to start and stop the slave driver. 131 */ 132 void (*hq_start) __P((void *)); 133 void (*hq_go) __P((void *)); 134 void (*hq_intr) __P((void *)); 135 }; 136 137 struct dmaqueue; 138 139 /* 140 * Software state per HP-IB bus. 141 */ 142 struct hpibbus_softc { 143 struct device sc_dev; /* generic device glue */ 144 struct hpib_controller *sc_ops; /* controller ops vector */ 145 volatile int sc_flags; /* misc flags */ 146 struct dmaqueue *sc_dq; 147 TAILQ_HEAD(, hpibqueue) sc_queue; 148 int sc_ba; 149 int sc_type; 150 char *sc_addr; 151 int sc_count; 152 int sc_curcnt; 153 154 /* 155 * HP-IB is an indirect bus; this cheezy resource map 156 * keeps track of slave/punit allocations. 157 */ 158 char sc_rmap[HPIB_NSLAVES][HPIB_NPUNITS]; 159 }; 160 161 /* sc_flags */ 162 #define HPIBF_IO 0x1 163 #define HPIBF_DONE 0x2 164 #define HPIBF_PPOLL 0x4 165 #define HPIBF_READ 0x8 166 #define HPIBF_TIMO 0x10 167 #define HPIBF_DMA16 0x8000 168 169 #ifdef _KERNEL 170 extern caddr_t internalhpib; 171 extern int hpibtimeout; 172 extern int hpibdmathresh; 173 174 void hpibreset __P((int)); 175 int hpibsend __P((int, int, int, void *, int)); 176 int hpibrecv __P((int, int, int, void *, int)); 177 int hpibustart __P((int)); 178 void hpibstart __P((void *)); 179 void hpibgo __P((int, int, int, void *, int, int, int)); 180 void hpibdone __P((void *)); 181 int hpibpptest __P((int, int)); 182 void hpibppclear __P((int)); 183 void hpibawait __P((int)); 184 int hpibswait __P((int, int)); 185 int hpibid __P((int, int)); 186 187 int hpibreq __P((struct device *, struct hpibqueue *)); 188 void hpibfree __P((struct device *, struct hpibqueue *)); 189 int hpibbus_alloc __P((struct hpibbus_softc *, int, int)); 190 void hpibbus_free __P((struct hpibbus_softc *, int, int)); 191 192 int hpibintr __P((void *)); 193 int hpibdevprint __P((void *, const char *)); 194 #endif 195
Indexes created Thu Oct 23 22:10:10 GMT 2025