sebuf.c revision 1.5.2.2
1 1.5.2.2 gwr /* $NetBSD: sebuf.c,v 1.5.2.2 1999/04/09 04:26:28 gwr Exp $ */ 2 1.5.2.2 gwr 3 1.5.2.2 gwr /*- 4 1.5.2.2 gwr * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 1.5.2.2 gwr * All rights reserved. 6 1.5.2.2 gwr * 7 1.5.2.2 gwr * This code is derived from software contributed to The NetBSD Foundation 8 1.5.2.2 gwr * by Gordon W. Ross. 9 1.5.2.2 gwr * 10 1.5.2.2 gwr * Redistribution and use in source and binary forms, with or without 11 1.5.2.2 gwr * modification, are permitted provided that the following conditions 12 1.5.2.2 gwr * are met: 13 1.5.2.2 gwr * 1. Redistributions of source code must retain the above copyright 14 1.5.2.2 gwr * notice, this list of conditions and the following disclaimer. 15 1.5.2.2 gwr * 2. Redistributions in binary form must reproduce the above copyright 16 1.5.2.2 gwr * notice, this list of conditions and the following disclaimer in the 17 1.5.2.2 gwr * documentation and/or other materials provided with the distribution. 18 1.5.2.2 gwr * 3. All advertising materials mentioning features or use of this software 19 1.5.2.2 gwr * must display the following acknowledgement: 20 1.5.2.2 gwr * This product includes software developed by the NetBSD 21 1.5.2.2 gwr * Foundation, Inc. and its contributors. 22 1.5.2.2 gwr * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.5.2.2 gwr * contributors may be used to endorse or promote products derived 24 1.5.2.2 gwr * from this software without specific prior written permission. 25 1.5.2.2 gwr * 26 1.5.2.2 gwr * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.5.2.2 gwr * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.5.2.2 gwr * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.5.2.2 gwr * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.5.2.2 gwr * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.5.2.2 gwr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.5.2.2 gwr * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.5.2.2 gwr * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.5.2.2 gwr * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.5.2.2 gwr * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.5.2.2 gwr * POSSIBILITY OF SUCH DAMAGE. 37 1.5.2.2 gwr */ 38 1.5.2.2 gwr 39 1.5.2.2 gwr /* 40 1.5.2.2 gwr * Sun3/E SCSI/Ethernet board. This is a VME board with some memory, 41 1.5.2.2 gwr * an Intel Ether, and an NCR5380 SCSI with a cheap DMA engine. 42 1.5.2.2 gwr * Note that the SCSI DMA engine can ONLY access the memory on 43 1.5.2.2 gwr * the SE board, NOT the main memory, because it can not master 44 1.5.2.2 gwr * VME transfers. 45 1.5.2.2 gwr * 46 1.5.2.2 gwr * This driver ("sebuf") is the parent of two child drivers: 47 1.5.2.2 gwr * se: yet another variant of NCR 5380 SCSI H/W 48 1.5.2.2 gwr * ie: yet anotehr variant of Intel 82586 Ethernet 49 1.5.2.2 gwr * 50 1.5.2.2 gwr * The job of this parent is to map the memory and partition it for 51 1.5.2.2 gwr * the two children. This driver has no device nodes. 52 1.5.2.2 gwr */ 53 1.5.2.2 gwr 54 1.5.2.2 gwr #include <sys/param.h> 55 1.5.2.2 gwr #include <sys/systm.h> 56 1.5.2.2 gwr #include <sys/conf.h> 57 1.5.2.2 gwr #include <sys/device.h> 58 1.5.2.2 gwr #include <sys/ioctl.h> 59 1.5.2.2 gwr #include <sys/malloc.h> 60 1.5.2.2 gwr #include <sys/mman.h> 61 1.5.2.2 gwr #include <sys/proc.h> 62 1.5.2.2 gwr #include <sys/tty.h> 63 1.5.2.2 gwr 64 1.5.2.2 gwr #include <vm/vm.h> 65 1.5.2.2 gwr 66 1.5.2.2 gwr #include <machine/autoconf.h> 67 1.5.2.2 gwr #include <machine/cpu.h> 68 1.5.2.2 gwr 69 1.5.2.2 gwr #include "sereg.h" 70 1.5.2.2 gwr #include "sevar.h" 71 1.5.2.2 gwr 72 1.5.2.2 gwr #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 73 1.5.2.2 gwr 74 1.5.2.2 gwr struct sebuf_softc { 75 1.5.2.2 gwr struct device sc_dev; /* base device (required) */ 76 1.5.2.2 gwr struct sebuf_regs *sc_regs; 77 1.5.2.2 gwr }; 78 1.5.2.2 gwr 79 1.5.2.2 gwr /* 80 1.5.2.2 gwr * Autoconfig attachment 81 1.5.2.2 gwr */ 82 1.5.2.2 gwr 83 1.5.2.2 gwr static int sebuf_match __P((struct device *, struct cfdata *, void *)); 84 1.5.2.2 gwr static void sebuf_attach __P((struct device *, struct device *, void *)); 85 1.5.2.2 gwr static int sebuf_print __P((void *, const char *)); 86 1.5.2.2 gwr 87 1.5.2.2 gwr struct cfattach sebuf_ca = { 88 1.5.2.2 gwr sizeof(struct sebuf_softc), sebuf_match, sebuf_attach 89 1.5.2.2 gwr }; 90 1.5.2.2 gwr 91 1.5.2.2 gwr static int 92 1.5.2.2 gwr sebuf_match(parent, cf, args) 93 1.5.2.2 gwr struct device *parent; 94 1.5.2.2 gwr struct cfdata *cf; 95 1.5.2.2 gwr void *args; 96 1.5.2.2 gwr { 97 1.5.2.2 gwr struct confargs *ca = args; 98 1.5.2.2 gwr struct se_regs *sreg; 99 1.5.2.2 gwr struct ie_regs *ereg; 100 1.5.2.2 gwr int pa, x; 101 1.5.2.2 gwr 102 1.5.2.2 gwr if (ca->ca_paddr == -1) 103 1.5.2.2 gwr return (0); 104 1.5.2.2 gwr 105 1.5.2.2 gwr /* Is it there at all? */ 106 1.5.2.2 gwr pa = ca->ca_paddr; 107 1.5.2.2 gwr x = bus_peek(ca->ca_bustype, pa, 2); 108 1.5.2.2 gwr if (x == -1) 109 1.5.2.2 gwr return (0); 110 1.5.2.2 gwr 111 1.5.2.2 gwr /* Look at the CSR for the SCSI part. */ 112 1.5.2.2 gwr pa = ca->ca_paddr + offsetof(struct sebuf_regs, se_scsi_regs); 113 1.5.2.2 gwr sreg = bus_tmapin(ca->ca_bustype, pa); 114 1.5.2.2 gwr /* Write some bits that are wired to zero. */ 115 1.5.2.2 gwr sreg->se_csr = 0xFFF3; 116 1.5.2.2 gwr x = peek_word((caddr_t)(&sreg->se_csr)); 117 1.5.2.2 gwr bus_tmapout(sreg); 118 1.5.2.2 gwr if ((x == -1) || (x & 0xFCF0)) { 119 1.5.2.2 gwr #ifdef DEBUG 120 1.5.2.2 gwr printf("sebuf_match: SCSI csr=0x%x\n", x); 121 1.5.2.2 gwr #endif 122 1.5.2.2 gwr return (0); 123 1.5.2.2 gwr } 124 1.5.2.2 gwr 125 1.5.2.2 gwr /* Look at the CSR for the Ethernet part. */ 126 1.5.2.2 gwr pa = ca->ca_paddr + offsetof(struct sebuf_regs, se_eth_regs); 127 1.5.2.2 gwr ereg = bus_tmapin(ca->ca_bustype, pa); 128 1.5.2.2 gwr /* Write some bits that are wired to zero. */ 129 1.5.2.2 gwr ereg->ie_csr = 0x0FFF; 130 1.5.2.2 gwr x = peek_word((caddr_t)(&ereg->ie_csr)); 131 1.5.2.2 gwr bus_tmapout(ereg); 132 1.5.2.2 gwr if ((x == -1) || (x & 0xFFF)) { 133 1.5.2.2 gwr #ifdef DEBUG 134 1.5.2.2 gwr printf("sebuf_match: Ether csr=0x%x\n", x); 135 1.5.2.2 gwr #endif 136 1.5.2.2 gwr return (0); 137 1.5.2.2 gwr } 138 1.5.2.2 gwr 139 1.5.2.2 gwr /* Default interrupt priority always splbio==2 */ 140 1.5.2.2 gwr if (ca->ca_intpri == -1) 141 1.5.2.2 gwr ca->ca_intpri = 2; 142 1.5.2.2 gwr 143 1.5.2.2 gwr return (1); 144 1.5.2.2 gwr } 145 1.5.2.2 gwr 146 1.5.2.2 gwr static void 147 1.5.2.2 gwr sebuf_attach(parent, self, args) 148 1.5.2.2 gwr struct device *parent, *self; 149 1.5.2.2 gwr void *args; 150 1.5.2.2 gwr { 151 1.5.2.2 gwr struct sebuf_softc *sc = (struct sebuf_softc *)self; 152 1.5.2.2 gwr struct confargs *ca = args; 153 1.5.2.2 gwr struct sebuf_attach_args aa; 154 1.5.2.2 gwr struct sebuf_regs *regs; 155 1.5.2.2 gwr 156 1.5.2.2 gwr printf("\n"); 157 1.5.2.2 gwr 158 1.5.2.2 gwr if (ca->ca_intpri != 2) 159 1.5.2.2 gwr panic("sebuf: bad level"); 160 1.5.2.2 gwr 161 1.5.2.2 gwr /* Map in the whole board. */ 162 1.5.2.2 gwr regs = (struct sebuf_regs *) 163 1.5.2.2 gwr bus_mapin(ca->ca_bustype, ca->ca_paddr, 164 1.5.2.2 gwr sizeof(struct sebuf_regs)); 165 1.5.2.2 gwr if (regs == NULL) 166 1.5.2.2 gwr panic("sebuf_attach"); 167 1.5.2.2 gwr sc->sc_regs = regs; 168 1.5.2.2 gwr 169 1.5.2.2 gwr /* Attach the SCSI child. */ 170 1.5.2.2 gwr aa.ca = *ca; /* structure copy */ 171 1.5.2.2 gwr aa.ca.ca_paddr = 0; /* prevent misuse */ 172 1.5.2.2 gwr aa.name = "se"; 173 1.5.2.2 gwr aa.buf = ®s->se_scsi_buf[0]; 174 1.5.2.2 gwr aa.blen = SE_NCRBUFSIZE; 175 1.5.2.2 gwr aa.regs = ®s->se_scsi_regs; 176 1.5.2.2 gwr (void) config_found(self, (void *) &aa, sebuf_print); 177 1.5.2.2 gwr 178 1.5.2.2 gwr /* Attach the Ethernet child. */ 179 1.5.2.2 gwr aa.ca.ca_intpri++; 180 1.5.2.2 gwr aa.ca.ca_intvec++; 181 1.5.2.2 gwr aa.name = "ie"; 182 1.5.2.2 gwr aa.buf = ®s->se_eth_buf[0]; 183 1.5.2.2 gwr aa.blen = SE_IEBUFSIZE; 184 1.5.2.2 gwr aa.regs = ®s->se_eth_regs; 185 1.5.2.2 gwr (void) config_found(self, (void *) &aa, sebuf_print); 186 1.5.2.2 gwr } 187 1.5.2.2 gwr 188 1.5.2.2 gwr static int 189 1.5.2.2 gwr sebuf_print(aux, name) 190 1.5.2.2 gwr void *aux; 191 1.5.2.2 gwr const char *name; 192 1.5.2.2 gwr { 193 1.5.2.2 gwr 194 1.5.2.2 gwr if (name != NULL) 195 1.5.2.2 gwr printf("%s: ", name); 196 1.5.2.2 gwr 197 1.5.2.2 gwr return UNCONF; 198 1.5.2.2 gwr } 199
Indexes created Thu Oct 02 10:09:58 GMT 2025