hpibvar.h revision 1.18.40.2
1 /* $NetBSD: hpibvar.h,v 1.18.40.2 2008/06/02 13:22:06 mjf Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1990, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)hpibvar.h 8.1 (Berkeley) 6/10/93 61 */ 62 63 #include <sys/queue.h> 64 65 #define HPIB_IPL(x) ((((x) >> 4) & 0x3) + 3) 66 67 #define HPIBA 32 68 #define HPIBB 1 69 #define HPIBC 8 70 #define HPIBA_BA 21 71 #define HPIBC_BA 30 72 #define HPIBA_IPL 3 73 74 #define CSA_BA 0x1F 75 76 #define IDS_WDMA 0x04 77 #define IDS_WRITE 0x08 78 #define IDS_IR 0x40 79 #define IDS_IE 0x80 80 #define IDS_DMA(x) (1 << (x)) 81 82 #define C_SDC 0x04 /* Selected device clear */ 83 #define C_SDC_P 0x04 /* with odd parity */ 84 #define C_DCL 0x14 /* Universal device clear */ 85 #define C_DCL_P 0x94 /* with odd parity */ 86 #define C_LAG 0x20 /* Listener address group commands */ 87 #define C_UNL 0x3f /* Universal unlisten */ 88 #define C_UNL_P 0xbf /* with odd parity */ 89 #define C_TAG 0x40 /* Talker address group commands */ 90 #define C_UNA 0x5e /* Unaddress (master talk address?) */ 91 #define C_UNA_P 0x5e /* with odd parity */ 92 #define C_UNT 0x5f /* Universal untalk */ 93 #define C_UNT_P 0xdf /* with odd parity */ 94 #define C_SCG 0x60 /* Secondary group commands */ 95 96 struct hpibbus_softc; 97 98 /* 99 * Each of the HP-IB controller drivers fills in this structure, which 100 * is used by the indirect driver to call controller-specific functions. 101 */ 102 struct hpib_controller { 103 void (*hpib_reset)(struct hpibbus_softc *); 104 int (*hpib_send)(struct hpibbus_softc *, 105 int, int, void *, int); 106 int (*hpib_recv)(struct hpibbus_softc *, 107 int, int, void *, int); 108 int (*hpib_ppoll)(struct hpibbus_softc *); 109 void (*hpib_ppwatch)(void *); 110 void (*hpib_go)(struct hpibbus_softc *, 111 int, int, void *, int, int, int); 112 void (*hpib_done)(struct hpibbus_softc *); 113 int (*hpib_intr)(void *); 114 }; 115 116 /* 117 * Attach an HP-IB bus to an HP-IB controller. 118 */ 119 struct hpibdev_attach_args { 120 struct hpib_controller *ha_ops; /* controller ops vector */ 121 int ha_type; /* XXX */ 122 int ha_ba; 123 struct hpibbus_softc **ha_softcpp; /* XXX */ 124 }; 125 126 /* 127 * Attach an HP-IB device to an HP-IB bus. 128 */ 129 struct hpibbus_attach_args { 130 uint16_t ha_id; /* device id */ 131 int ha_slave; /* HP-IB bus slave */ 132 int ha_punit; /* physical unit on slave */ 133 }; 134 135 /* Locator short-hand */ 136 #include "locators.h" 137 138 #define hpibbuscf_slave cf_loc[HPIBBUSCF_SLAVE] 139 #define hpibbuscf_punit cf_loc[HPIBBUSCF_PUNIT] 140 141 #define HPIB_NSLAVES 8 /* number of slaves on a bus */ 142 #define HPIB_NPUNITS 2 /* number of punits per slave */ 143 144 /* 145 * An HP-IB job queue entry. Slave drivers have one of these used 146 * to queue requests with the controller. 147 */ 148 struct hpibqueue { 149 TAILQ_ENTRY(hpibqueue) hq_list; /* entry on queue */ 150 void *hq_softc; /* slave's softc */ 151 int hq_slave; /* slave on bus */ 152 153 /* 154 * Callbacks used to start and stop the slave driver. 155 */ 156 void (*hq_start)(void *); 157 void (*hq_go)(void *); 158 void (*hq_intr)(void *); 159 }; 160 161 struct dmaqueue; 162 163 /* 164 * Software state per HP-IB bus. 165 */ 166 struct hpibbus_softc { 167 device_t sc_dev; /* generic device glue */ 168 struct hpib_controller *sc_ops; /* controller ops vector */ 169 volatile int sc_flags; /* misc flags */ 170 struct dmaqueue *sc_dq; 171 TAILQ_HEAD(, hpibqueue) sc_queue; 172 int sc_ba; 173 int sc_type; 174 char *sc_addr; 175 int sc_count; 176 int sc_curcnt; 177 178 /* 179 * HP-IB is an indirect bus; this cheezy resource map 180 * keeps track of slave/punit allocations. 181 */ 182 char sc_rmap[HPIB_NSLAVES][HPIB_NPUNITS]; 183 }; 184 185 /* sc_flags */ 186 #define HPIBF_IO 0x1 187 #define HPIBF_DONE 0x2 188 #define HPIBF_PPOLL 0x4 189 #define HPIBF_READ 0x8 190 #define HPIBF_TIMO 0x10 191 #define HPIBF_DMA16 0x8000 192 193 #ifdef _KERNEL 194 extern void *internalhpib; 195 extern int hpibtimeout; 196 extern int hpibdmathresh; 197 198 void hpibreset(int); 199 int hpibsend(int, int, int, void *, int); 200 int hpibrecv(int, int, int, void *, int); 201 int hpibustart(int); 202 void hpibgo(int, int, int, void *, int, int, int); 203 int hpibpptest(int, int); 204 void hpibppclear(int); 205 void hpibawait(int); 206 int hpibswait(int, int); 207 int hpibid(int, int); 208 209 int hpibreq(struct device *, struct hpibqueue *); 210 void hpibfree(struct device *, struct hpibqueue *); 211 212 int hpibintr(void *); 213 int hpibdevprint(void *, const char *); 214 #endif 215
Indexes created Sat Oct 18 08:10:09 GMT 2025