if_snc_cbus.c revision 66550
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 66550 2000-10-02 14:27:20Z nyan $ 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 <sys/rman.h> 46#include <machine/resource.h> 47 48#include <net/ethernet.h> 49#include <net/if.h> 50#include <net/if_arp.h> 51#include <net/if_media.h> 52#include <net/if_mib.h> 53 54#include <isa/isavar.h> 55#include <isa/pnpvar.h> 56#include <sys/malloc.h> /* as dependency for isa/isa_common.h */ 57#include <isa/isa_common.h> /* for snc_isapnp_reconfig() */ 58 59#include <dev/snc/dp83932var.h> 60#include <dev/snc/dp83932subr.h> 61#include <dev/snc/if_sncreg.h> 62#include <dev/snc/if_sncvar.h> 63 64static void snc_isapnp_reconfig __P((device_t)); 65static int snc_isa_probe __P((device_t)); 66static int snc_isa_attach __P((device_t)); 67 68static struct isa_pnp_id snc_ids[] = { 69 { 0x6180a3b8, NULL }, /* NEC8061 NEC PC-9801-104 */ 70 { 0, NULL } 71}; 72 73static void 74snc_isapnp_reconfig(dev) 75 device_t dev; 76{ 77 struct isa_device *idev = DEVTOISA(dev); 78 struct isa_config config; 79 u_long start, count; 80 int rid; 81 82 bzero(&config, sizeof(config)); 83 84 for (rid = 0; rid < ISA_NMEM; rid++) { 85 if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count)) 86 break; 87 config.ic_mem[rid].ir_start = start; 88 config.ic_mem[rid].ir_end = start; 89 config.ic_mem[rid].ir_size = count; 90 } 91 config.ic_nmem = rid; 92 for (rid = 0; rid < ISA_NPORT; rid++) { 93 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count)) 94 break; 95 config.ic_port[rid].ir_start = start; 96 config.ic_port[rid].ir_end = start; 97 config.ic_port[rid].ir_size = count; 98 } 99 config.ic_nport = rid; 100 for (rid = 0; rid < ISA_NIRQ; rid++) { 101 if (bus_get_resource(dev, SYS_RES_IRQ, rid, &start, &count)) 102 break; 103 config.ic_irqmask[rid] = 1 << start; 104 } 105 config.ic_nirq = rid; 106 for (rid = 0; rid < ISA_NDRQ; rid++) { 107 if (bus_get_resource(dev, SYS_RES_DRQ, rid, &start, &count)) 108 break; 109 config.ic_drqmask[rid] = 1 << start; 110 } 111 config.ic_ndrq = rid; 112 113 idev->id_config_cb(idev->id_config_arg, &config, 1); 114} 115 116static int 117snc_isa_probe(dev) 118 device_t dev; 119{ 120 struct snc_softc *sc = device_get_softc(dev); 121 int type; 122 int error = 0; 123 124 bzero(sc, sizeof(struct snc_softc)); 125 126 /* Check isapnp ids */ 127 error = ISA_PNP_PROBE(device_get_parent(dev), dev, snc_ids); 128 129 /* If the card had a PnP ID that didn't match any we know about */ 130 if (error == ENXIO) { 131 return(error); 132 } 133 134 switch (error) { 135 case 0: /* Matched PnP */ 136 type = SNEC_TYPE_PNP; 137 break; 138 139 case ENOENT: /* Legacy ISA */ 140 type = SNEC_TYPE_LEGACY; 141 break; 142 143 default: /* If we had some other problem. */ 144 return(error); 145 } 146 147 if (type == SNEC_TYPE_PNP && isa_get_portsize(dev) == 0) { 148 int port; 149 int rid = 0; 150 struct resource *res = NULL; 151 152 for (port = 0x0888; port <= 0x3888; port += 0x1000) { 153 bus_set_resource(dev, SYS_RES_IOPORT, rid, 154 port, SNEC_NREGS); 155 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 156 0, ~0, SNEC_NREGS, 157 0 /* !RF_ACTIVE */); 158 if (res) break; 159 } 160 161 printf("snc_isa_probe: broken PnP resource, "); 162 if (res) { 163 printf("use port 0x%x\n", port); 164 bus_release_resource(dev, SYS_RES_IOPORT, rid, res); 165 snc_isapnp_reconfig(dev); 166 } else { 167 printf("and can't find port\n"); 168 } 169 } 170 171 error = snc_alloc_port(dev, 0); 172 error = max(error, snc_alloc_memory(dev, 0)); 173 error = max(error, snc_alloc_irq(dev, 0, 0)); 174 175 if (!error && !snc_probe(dev, type)) 176 error = ENOENT; 177 178 snc_release_resources(dev); 179 return (error); 180} 181 182static int 183snc_isa_attach(dev) 184 device_t dev; 185{ 186 struct snc_softc *sc = device_get_softc(dev); 187 int error; 188 189 bzero(sc, sizeof(struct snc_softc)); 190 191 snc_alloc_port(dev, 0); 192 snc_alloc_memory(dev, 0); 193 snc_alloc_irq(dev, 0, 0); 194 195 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 196 sncintr, sc, &sc->irq_handle); 197 if (error) { 198 printf("snc_isa_attach: bus_setup_intr() failed\n"); 199 snc_release_resources(dev); 200 return (error); 201 } 202 203 /* This interface is always enabled. */ 204 sc->sc_enabled = 1; 205 206 return snc_attach(dev); 207} 208 209static device_method_t snc_isa_methods[] = { 210 /* Device interface */ 211 DEVMETHOD(device_probe, snc_isa_probe), 212 DEVMETHOD(device_attach, snc_isa_attach), 213 DEVMETHOD(device_shutdown, snc_shutdown), 214 215 { 0, 0 } 216}; 217 218static driver_t snc_isa_driver = { 219 "snc", 220 snc_isa_methods, 221 sizeof(struct snc_softc) 222}; 223 224DRIVER_MODULE(if_snc, isa, snc_isa_driver, snc_devclass, 0, 0); 225