1 /* $NetBSD: if_ze.c,v 1.18 2017/05/22 17:02:41 ragge Exp $ */ 2 /* 3 * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __KERNEL_RCSID(0, "$NetBSD: if_ze.c,v 1.18 2017/05/22 17:02:41 ragge Exp $"); 28 29 #include "opt_cputype.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/bus.h> 34 #include <sys/cpu.h> 35 #include <sys/device.h> 36 37 #include <net/if.h> 38 #include <net/if_ether.h> 39 #include <net/if_dl.h> 40 41 #include <netinet/in.h> 42 #include <netinet/if_inarp.h> 43 44 #include <machine/nexus.h> 45 #include <machine/scb.h> 46 #include <machine/sid.h> 47 #include <machine/mainbus.h> 48 49 #include <dev/ic/sgecreg.h> 50 #include <dev/ic/sgecvar.h> 51 52 #include "ioconf.h" 53 54 /* 55 * Addresses. 56 */ 57 #define SGECADDR 0x20008000 58 #define NISA_ROM 0x20084000 59 #define NISA_ROM_VXT 0x200c4000 60 #define NISA_ROM_VSBUS 0x27800000 61 #define SGECVEC 0x108 62 63 static int ze_mainbus_match(device_t, cfdata_t, void *); 64 static void ze_mainbus_attach(device_t, device_t, void *); 65 66 static const struct sgec_data { 67 uint32_t sd_boardtype; 68 bus_addr_t sd_addr; 69 bus_addr_t sd_rom; 70 uint16_t sd_intvec; 71 uint8_t sd_romshift; 72 } sgec_data[] = { 73 { VAX_BTYP_660, SGECADDR, NISA_ROM, SGECVEC, 24, }, 74 #if VXT2000 || VAXANY 75 { VAX_BTYP_VXT, SGECADDR, NISA_ROM_VXT, 0x200, 0, }, 76 #endif 77 { VAX_BTYP_670, SGECADDR, NISA_ROM, SGECVEC, 8, }, 78 { VAX_BTYP_680, SGECADDR, NISA_ROM, SGECVEC, 8, }, 79 { VAX_BTYP_681, SGECADDR, NISA_ROM, SGECVEC, 8, }, 80 { VAX_BTYP_48, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, }, 81 { VAX_BTYP_49, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, }, 82 { VAX_BTYP_53, SGECADDR, NISA_ROM, SGECVEC, 8, }, 83 }; 84 85 static const struct sgec_data * 86 ze_find(void) 87 { 88 size_t i; 89 const struct sgec_data *sd; 90 for (i = 0, sd = sgec_data; i < __arraycount(sgec_data); i++, sd++) { 91 if (vax_boardtype == sd->sd_boardtype) 92 return sd; 93 } 94 95 return NULL; 96 } 97 98 CFATTACH_DECL_NEW(ze_mainbus, sizeof(struct ze_softc), 99 ze_mainbus_match, ze_mainbus_attach, NULL, NULL); 100 101 /* 102 * Check for present SGEC. 103 */ 104 int 105 ze_mainbus_match(device_t parent, cfdata_t cf, void *aux) 106 { 107 struct mainbus_attach_args * const ma = aux; 108 109 /* 110 * Should some more intelligent checking be done??? 111 */ 112 if (strcmp(ma->ma_type, "sgec")) 113 return 0; 114 115 return ze_find() != NULL; 116 } 117 118 /* 119 * Interface exists: make available by filling in network interface 120 * record. System will initialize the interface when it is ready 121 * to accept packets. 122 */ 123 void 124 ze_mainbus_attach(device_t parent, device_t self, void *aux) 125 { 126 struct mainbus_attach_args * const ma = aux; 127 struct ze_softc * const sc = device_private(self); 128 const struct sgec_data * const sd = ze_find(); 129 const uint32_t *ea; 130 size_t i; 131 int error; 132 133 sc->sc_dev = self; 134 135 /* 136 * Map in SGEC registers. 137 */ 138 sc->sc_dmat = ma->ma_dmat; 139 sc->sc_iot = ma->ma_iot; 140 sc->sc_intvec = sd->sd_intvec; 141 error = bus_space_map(sc->sc_iot, sd->sd_addr, PAGE_SIZE, 0, 142 &sc->sc_ioh); 143 if (error) { 144 aprint_error(": failed to map %#lx: %d\n", sd->sd_addr, error); 145 return; 146 } 147 148 /* 149 * Map in, read and release ethernet rom address. 150 */ 151 ea = (uint32_t *)vax_map_physmem(sd->sd_rom, 1); 152 for (i = 0; i < ETHER_ADDR_LEN; i++) 153 sc->sc_enaddr[i] = (ea[i] >> sd->sd_romshift) & 0377; 154 vax_unmap_physmem((vaddr_t)ea, 1); 155 156 scb_vecalloc(sc->sc_intvec, (void (*)(void *)) sgec_intr, sc, 157 SCB_ISTACK, &sc->sc_intrcnt); 158 159 sgec_attach(sc); 160 } 161