if_snc_cbus.c revision 92739
1/* 2 * Copyright (c) 1995, David Greenman 3 * 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: head/sys/dev/snc/if_snc_cbus.c 92739 2002-03-20 02:08:01Z alfred $ 28 */ 29 30/* 31 * National Semiconductor DP8393X SONIC Driver 32 * 33 * This is the C-bus specific attachment on FreeBSD 34 * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> 35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/socket.h> 40#include <sys/kernel.h> 41 42#include <sys/module.h> 43#include <sys/bus.h> 44#include <machine/bus.h> 45#include <machine/resource.h> 46 47#include <net/if.h> 48#include <net/if_arp.h> 49#include <net/if_media.h> 50 51#include <isa/isavar.h> 52#include <sys/malloc.h> /* as dependency for isa/isa_common.h */ 53#include <isa/isa_common.h> /* for snc_isapnp_reconfig() */ 54 55#include <dev/snc/dp83932var.h> 56#include <dev/snc/if_sncreg.h> 57#include <dev/snc/if_sncvar.h> 58 59static void snc_isapnp_reconfig (device_t); 60static int snc_isa_probe (device_t); 61static int snc_isa_attach (device_t); 62 63static struct isa_pnp_id snc_ids[] = { 64 { 0x6180a3b8, NULL }, /* NEC8061 NEC PC-9801-104 */ 65 { 0, NULL } 66}; 67 68static void 69snc_isapnp_reconfig(dev) 70 device_t dev; 71{ 72 struct isa_device *idev = DEVTOISA(dev); 73 struct isa_config config; 74 u_long start, count; 75 int rid; 76 77 bzero(&config, sizeof(config)); 78 79 for (rid = 0; rid < ISA_NMEM; rid++) { 80 if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count)) 81 break; 82 config.ic_mem[rid].ir_start = start; 83 config.ic_mem[rid].ir_end = start; 84 config.ic_mem[rid].ir_size = count; 85 } 86 config.ic_nmem = rid; 87 for (rid = 0; rid < ISA_NPORT; rid++) { 88 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count)) 89 break; 90 config.ic_port[rid].ir_start = start; 91 config.ic_port[rid].ir_end = start; 92 config.ic_port[rid].ir_size = count; 93 } 94 config.ic_nport = rid; 95 for (rid = 0; rid < ISA_NIRQ; rid++) { 96 if (bus_get_resource(dev, SYS_RES_IRQ, rid, &start, &count)) 97 break; 98 config.ic_irqmask[rid] = 1 << start; 99 } 100 config.ic_nirq = rid; 101 for (rid = 0; rid < ISA_NDRQ; rid++) { 102 if (bus_get_resource(dev, SYS_RES_DRQ, rid, &start, &count)) 103 break; 104 config.ic_drqmask[rid] = 1 << start; 105 } 106 config.ic_ndrq = rid; 107 108 idev->id_config_cb(idev->id_config_arg, &config, 1); 109} 110 111static int 112snc_isa_probe(dev) 113 device_t dev; 114{ 115 struct snc_softc *sc = device_get_softc(dev); 116 int type; 117 int error = 0; 118 119 bzero(sc, sizeof(struct snc_softc)); 120 121 /* Check isapnp ids */ 122 error = ISA_PNP_PROBE(device_get_parent(dev), dev, snc_ids); 123 124 /* If the card had a PnP ID that didn't match any we know about */ 125 if (error == ENXIO) { 126 return(error); 127 } 128 129 switch (error) { 130 case 0: /* Matched PnP */ 131 type = SNEC_TYPE_PNP; 132 break; 133 134 case ENOENT: /* Legacy ISA */ 135 type = SNEC_TYPE_LEGACY; 136 break; 137 138 default: /* If we had some other problem. */ 139 return(error); 140 } 141 142 if (type == SNEC_TYPE_PNP && isa_get_portsize(dev) == 0) { 143 int port; 144 int rid = 0; 145 struct resource *res = NULL; 146 147 for (port = 0x0888; port <= 0x3888; port += 0x1000) { 148 bus_set_resource(dev, SYS_RES_IOPORT, rid, 149 port, SNEC_NREGS); 150 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 151 0, ~0, SNEC_NREGS, 152 0 /* !RF_ACTIVE */); 153 if (res) break; 154 } 155 156 printf("snc_isa_probe: broken PnP resource, "); 157 if (res) { 158 printf("use port 0x%x\n", port); 159 bus_release_resource(dev, SYS_RES_IOPORT, rid, res); 160 snc_isapnp_reconfig(dev); 161 } else { 162 printf("and can't find port\n"); 163 } 164 } 165 166 error = snc_alloc_port(dev, 0); 167 error = max(error, snc_alloc_memory(dev, 0)); 168 error = max(error, snc_alloc_irq(dev, 0, 0)); 169 170 if (!error && !snc_probe(dev, type)) 171 error = ENOENT; 172 173 snc_release_resources(dev); 174 return (error); 175} 176 177static int 178snc_isa_attach(dev) 179 device_t dev; 180{ 181 struct snc_softc *sc = device_get_softc(dev); 182 int error; 183 184 bzero(sc, sizeof(struct snc_softc)); 185 186 snc_alloc_port(dev, 0); 187 snc_alloc_memory(dev, 0); 188 snc_alloc_irq(dev, 0, 0); 189 190 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 191 sncintr, sc, &sc->irq_handle); 192 if (error) { 193 printf("snc_isa_attach: bus_setup_intr() failed\n"); 194 snc_release_resources(dev); 195 return (error); 196 } 197 198 /* This interface is always enabled. */ 199 sc->sc_enabled = 1; 200 201 return snc_attach(dev); 202} 203 204static device_method_t snc_isa_methods[] = { 205 /* Device interface */ 206 DEVMETHOD(device_probe, snc_isa_probe), 207 DEVMETHOD(device_attach, snc_isa_attach), 208 DEVMETHOD(device_shutdown, snc_shutdown), 209 210 { 0, 0 } 211}; 212 213static driver_t snc_isa_driver = { 214 "snc", 215 snc_isa_methods, 216 sizeof(struct snc_softc) 217}; 218 219DRIVER_MODULE(if_snc, isa, snc_isa_driver, snc_devclass, 0, 0); 220