if_snc_cbus.c revision 139749
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 */ 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: head/sys/dev/snc/if_snc_cbus.c 139749 2005-01-06 01:43:34Z imp $"); 31 32/* 33 * National Semiconductor DP8393X SONIC Driver 34 * 35 * This is the C-bus specific attachment on FreeBSD 36 * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp> 37 */ 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/socket.h> 42#include <sys/kernel.h> 43 44#include <sys/module.h> 45#include <sys/bus.h> 46#include <machine/bus.h> 47#include <machine/resource.h> 48 49#include <net/if.h> 50#include <net/if_arp.h> 51#include <net/if_media.h> 52 53#include <isa/isavar.h> 54#include <sys/malloc.h> /* as dependency for isa/isa_common.h */ 55#include <isa/isa_common.h> /* for snc_isapnp_reconfig() */ 56 57#include <dev/snc/dp83932var.h> 58#include <dev/snc/if_sncreg.h> 59#include <dev/snc/if_sncvar.h> 60 61static void snc_isapnp_reconfig (device_t); 62static int snc_isa_probe (device_t); 63static int snc_isa_attach (device_t); 64 65static struct isa_pnp_id snc_ids[] = { 66 { 0x6180a3b8, NULL }, /* NEC8061 NEC PC-9801-104 */ 67 { 0, NULL } 68}; 69 70static void 71snc_isapnp_reconfig(dev) 72 device_t dev; 73{ 74 struct isa_device *idev = DEVTOISA(dev); 75 struct isa_config config; 76 u_long start, count; 77 int rid; 78 79 bzero(&config, sizeof(config)); 80 81 for (rid = 0; rid < ISA_NMEM; rid++) { 82 if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count)) 83 break; 84 config.ic_mem[rid].ir_start = start; 85 config.ic_mem[rid].ir_end = start; 86 config.ic_mem[rid].ir_size = count; 87 } 88 config.ic_nmem = rid; 89 for (rid = 0; rid < ISA_NPORT; rid++) { 90 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count)) 91 break; 92 config.ic_port[rid].ir_start = start; 93 config.ic_port[rid].ir_end = start; 94 config.ic_port[rid].ir_size = count; 95 } 96 config.ic_nport = rid; 97 for (rid = 0; rid < ISA_NIRQ; rid++) { 98 if (bus_get_resource(dev, SYS_RES_IRQ, rid, &start, &count)) 99 break; 100 config.ic_irqmask[rid] = 1 << start; 101 } 102 config.ic_nirq = rid; 103 for (rid = 0; rid < ISA_NDRQ; rid++) { 104 if (bus_get_resource(dev, SYS_RES_DRQ, rid, &start, &count)) 105 break; 106 config.ic_drqmask[rid] = 1 << start; 107 } 108 config.ic_ndrq = rid; 109 110 idev->id_config_cb(idev->id_config_arg, &config, 1); 111} 112 113static int 114snc_isa_probe(dev) 115 device_t dev; 116{ 117 struct snc_softc *sc = device_get_softc(dev); 118 int type; 119 int error = 0; 120 121 bzero(sc, sizeof(struct snc_softc)); 122 123 /* Check isapnp ids */ 124 error = ISA_PNP_PROBE(device_get_parent(dev), dev, snc_ids); 125 126 /* If the card had a PnP ID that didn't match any we know about */ 127 if (error == ENXIO) { 128 return(error); 129 } 130 131 switch (error) { 132 case 0: /* Matched PnP */ 133 type = SNEC_TYPE_PNP; 134 break; 135 136 case ENOENT: /* Legacy ISA */ 137 type = SNEC_TYPE_LEGACY; 138 break; 139 140 default: /* If we had some other problem. */ 141 return(error); 142 } 143 144 if (type == SNEC_TYPE_PNP && isa_get_portsize(dev) == 0) { 145 int port; 146 int rid = 0; 147 struct resource *res = NULL; 148 149 for (port = 0x0888; port <= 0x3888; port += 0x1000) { 150 bus_set_resource(dev, SYS_RES_IOPORT, rid, 151 port, SNEC_NREGS); 152 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 153 0, ~0, SNEC_NREGS, 154 0 /* !RF_ACTIVE */); 155 if (res) break; 156 } 157 158 printf("snc_isa_probe: broken PnP resource, "); 159 if (res) { 160 printf("use port 0x%x\n", port); 161 bus_release_resource(dev, SYS_RES_IOPORT, rid, res); 162 snc_isapnp_reconfig(dev); 163 } else { 164 printf("and can't find port\n"); 165 } 166 } 167 168 error = snc_alloc_port(dev, 0); 169 error = max(error, snc_alloc_memory(dev, 0)); 170 error = max(error, snc_alloc_irq(dev, 0, 0)); 171 172 if (!error && !snc_probe(dev, type)) 173 error = ENOENT; 174 175 snc_release_resources(dev); 176 return (error); 177} 178 179static int 180snc_isa_attach(dev) 181 device_t dev; 182{ 183 struct snc_softc *sc = device_get_softc(dev); 184 int error; 185 186 bzero(sc, sizeof(struct snc_softc)); 187 188 snc_alloc_port(dev, 0); 189 snc_alloc_memory(dev, 0); 190 snc_alloc_irq(dev, 0, 0); 191 192 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 193 sncintr, sc, &sc->irq_handle); 194 if (error) { 195 printf("snc_isa_attach: bus_setup_intr() failed\n"); 196 snc_release_resources(dev); 197 return (error); 198 } 199 200 /* This interface is always enabled. */ 201 sc->sc_enabled = 1; 202 203 return snc_attach(dev); 204} 205 206static device_method_t snc_isa_methods[] = { 207 /* Device interface */ 208 DEVMETHOD(device_probe, snc_isa_probe), 209 DEVMETHOD(device_attach, snc_isa_attach), 210 DEVMETHOD(device_shutdown, snc_shutdown), 211 212 { 0, 0 } 213}; 214 215static driver_t snc_isa_driver = { 216 "snc", 217 snc_isa_methods, 218 sizeof(struct snc_softc) 219}; 220 221DRIVER_MODULE(snc, isa, snc_isa_driver, snc_devclass, 0, 0); 222MODULE_DEPEND(snc, isa, 1, 1, 1); 223MODULE_DEPEND(snc, ether, 1, 1, 1); 224