Annotation of sys/dev/cardbus/if_fxp_cardbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_fxp_cardbus.c,v 1.20 2007/05/08 20:43:07 deraadt Exp $ */
! 2: /* $NetBSD: if_fxp_cardbus.c,v 1.12 2000/05/08 18:23:36 thorpej Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1999 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Johan Danielsson.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: /*
! 41: * CardBus front-end for the Intel i8255x family of Ethernet chips.
! 42: */
! 43:
! 44: #include "bpfilter.h"
! 45:
! 46: #include <sys/param.h>
! 47: #include <sys/systm.h>
! 48: #include <sys/mbuf.h>
! 49: #include <sys/socket.h>
! 50: #include <sys/ioctl.h>
! 51: #include <sys/errno.h>
! 52: #include <sys/malloc.h>
! 53: #include <sys/kernel.h>
! 54: #include <sys/timeout.h>
! 55: #include <sys/device.h>
! 56:
! 57: #include <net/if.h>
! 58: #include <net/if_dl.h>
! 59: #include <net/if_types.h>
! 60: #include <net/if_media.h>
! 61:
! 62: #include <machine/endian.h>
! 63:
! 64: #if NBPFILTER > 0
! 65: #include <net/bpf.h>
! 66: #endif
! 67:
! 68: #ifdef INET
! 69: #include <netinet/in.h>
! 70: #include <netinet/in_systm.h>
! 71: #include <netinet/in_var.h>
! 72: #include <netinet/ip.h>
! 73: #include <netinet/if_ether.h>
! 74: #endif
! 75:
! 76: #include <machine/bus.h>
! 77: #include <machine/intr.h>
! 78:
! 79: #include <dev/mii/miivar.h>
! 80:
! 81: #include <dev/ic/fxpreg.h>
! 82: #include <dev/ic/fxpvar.h>
! 83:
! 84: #include <dev/pci/pcivar.h>
! 85: #include <dev/pci/pcireg.h>
! 86: #include <dev/pci/pcidevs.h>
! 87:
! 88: #include <dev/cardbus/cardbusvar.h>
! 89:
! 90: int fxp_cardbus_match(struct device *, void *, void *);
! 91: void fxp_cardbus_attach(struct device *, struct device *, void *);
! 92: int fxp_cardbus_detach(struct device *, int);
! 93: void fxp_cardbus_setup(struct fxp_softc *);
! 94:
! 95: struct fxp_cardbus_softc {
! 96: struct fxp_softc sc;
! 97: cardbus_devfunc_t ct;
! 98: cardbustag_t ct_tag;
! 99: pcireg_t base0_reg;
! 100: pcireg_t base1_reg;
! 101: bus_size_t size;
! 102: };
! 103:
! 104: struct cfattach fxp_cardbus_ca = {
! 105: sizeof(struct fxp_cardbus_softc), fxp_cardbus_match, fxp_cardbus_attach,
! 106: fxp_cardbus_detach
! 107: };
! 108:
! 109: const struct cardbus_matchid fxp_cardbus_devices[] = {
! 110: { PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_8255x },
! 111: };
! 112:
! 113: #ifdef CBB_DEBUG
! 114: #define DPRINTF(X) printf X
! 115: #else
! 116: #define DPRINTF(X)
! 117: #endif
! 118:
! 119: int
! 120: fxp_cardbus_match(struct device *parent, void *match, void *aux)
! 121: {
! 122: return (cardbus_matchbyid((struct cardbus_attach_args *)aux,
! 123: fxp_cardbus_devices,
! 124: sizeof(fxp_cardbus_devices)/sizeof(fxp_cardbus_devices[0])));
! 125: }
! 126:
! 127: void
! 128: fxp_cardbus_attach(struct device *parent, struct device *self, void *aux)
! 129: {
! 130: char intrstr[16];
! 131: struct fxp_softc *sc = (struct fxp_softc *) self;
! 132: struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) self;
! 133: struct cardbus_attach_args *ca = aux;
! 134: struct cardbus_softc *psc =
! 135: (struct cardbus_softc *)sc->sc_dev.dv_parent;
! 136: cardbus_chipset_tag_t cc = psc->sc_cc;
! 137: cardbus_function_tag_t cf = psc->sc_cf;
! 138: bus_space_tag_t iot, memt;
! 139: bus_space_handle_t ioh, memh;
! 140:
! 141: bus_addr_t adr;
! 142: bus_size_t size;
! 143:
! 144: csc->ct = ca->ca_ct;
! 145:
! 146: /*
! 147: * Map control/status registers.
! 148: */
! 149: if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE1_REG,
! 150: PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &size) == 0) {
! 151: csc->base1_reg = adr | 1;
! 152: sc->sc_st = iot;
! 153: sc->sc_sh = ioh;
! 154: csc->size = size;
! 155: } else if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE0_REG,
! 156: PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
! 157: 0, &memt, &memh, &adr, &size) == 0) {
! 158: csc->base0_reg = adr;
! 159: sc->sc_st = memt;
! 160: sc->sc_sh = memh;
! 161: csc->size = size;
! 162: } else
! 163: panic("%s: failed to allocate mem and io space", __func__);
! 164:
! 165: if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
! 166: printf(": %s %s", ca->ca_cis.cis1_info[0],
! 167: ca->ca_cis.cis1_info[1]);
! 168: else
! 169: printf("\n");
! 170:
! 171: sc->sc_dmat = ca->ca_dmat;
! 172: #if 0
! 173: sc->sc_enable = fxp_cardbus_enable;
! 174: sc->sc_disable = fxp_cardbus_disable;
! 175: sc->sc_enabled = 0;
! 176: #endif
! 177:
! 178: Cardbus_function_enable(csc->ct);
! 179:
! 180: fxp_cardbus_setup(sc);
! 181:
! 182: /* Map and establish the interrupt. */
! 183: sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET,
! 184: fxp_intr, sc, sc->sc_dev.dv_xname);
! 185: if (NULL == sc->sc_ih) {
! 186: printf(": couldn't establish interrupt");
! 187: printf("at %d\n", ca->ca_intrline);
! 188: return;
! 189: }
! 190: snprintf(intrstr, sizeof(intrstr), "irq %d", ca->ca_intrline);
! 191:
! 192: sc->sc_revision = PCI_REVISION(ca->ca_class);
! 193:
! 194: fxp_attach(sc, intrstr);
! 195: }
! 196:
! 197: void
! 198: fxp_cardbus_setup(struct fxp_softc *sc)
! 199: {
! 200: struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc;
! 201: struct cardbus_softc *psc =
! 202: (struct cardbus_softc *) sc->sc_dev.dv_parent;
! 203: cardbus_chipset_tag_t cc = psc->sc_cc;
! 204: cardbus_function_tag_t cf = psc->sc_cf;
! 205: pcireg_t command;
! 206:
! 207: csc->ct_tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus,
! 208: csc->ct->ct_dev, csc->ct->ct_func);
! 209:
! 210: command = cardbus_conf_read(cc, cf, csc->ct_tag, CARDBUS_COMMAND_STATUS_REG);
! 211: if (csc->base0_reg) {
! 212: cardbus_conf_write(cc, cf, csc->ct_tag, CARDBUS_BASE0_REG, csc->base0_reg);
! 213: (cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE);
! 214: command |= CARDBUS_COMMAND_MEM_ENABLE |
! 215: CARDBUS_COMMAND_MASTER_ENABLE;
! 216: } else if (csc->base1_reg) {
! 217: cardbus_conf_write(cc, cf, csc->ct_tag, CARDBUS_BASE1_REG, csc->base1_reg);
! 218: (cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE);
! 219: command |= (CARDBUS_COMMAND_IO_ENABLE |
! 220: CARDBUS_COMMAND_MASTER_ENABLE);
! 221: }
! 222:
! 223: (cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE);
! 224:
! 225: /* enable the card */
! 226: cardbus_conf_write(cc, cf, csc->ct_tag, CARDBUS_COMMAND_STATUS_REG, command);
! 227: }
! 228:
! 229: int fxp_detach(struct fxp_softc *);
! 230:
! 231: int
! 232: fxp_detach(struct fxp_softc *sc)
! 233: {
! 234: struct ifnet *ifp = &sc->sc_arpcom.ac_if;
! 235:
! 236: /* Unhook our tick handler. */
! 237: timeout_del(&sc->stats_update_to);
! 238:
! 239: /* Detach any PHYs we might have. */
! 240: if (LIST_FIRST(&sc->sc_mii.mii_phys) != NULL)
! 241: mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
! 242:
! 243: /* Delete any remaining media. */
! 244: ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY);
! 245:
! 246: ether_ifdetach(ifp);
! 247: if_detach(ifp);
! 248:
! 249: if (sc->sc_sdhook != NULL)
! 250: shutdownhook_disestablish(sc->sc_sdhook);
! 251: if (sc->sc_powerhook != NULL)
! 252: powerhook_disestablish(sc->sc_powerhook);
! 253:
! 254: return (0);
! 255: }
! 256:
! 257: int
! 258: fxp_cardbus_detach(struct device *self, int flags)
! 259: {
! 260: struct fxp_softc *sc = (struct fxp_softc *) self;
! 261: struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) self;
! 262: struct cardbus_devfunc *ct = csc->ct;
! 263: int rv, reg;
! 264:
! 265: #ifdef DIAGNOSTIC
! 266: if (ct == NULL)
! 267: panic("%s: data structure lacks", sc->sc_dev.dv_xname);
! 268: #endif
! 269:
! 270: rv = fxp_detach(sc);
! 271: if (rv == 0) {
! 272: /*
! 273: * Unhook the interrupt handler.
! 274: */
! 275: cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
! 276:
! 277: /*
! 278: * release bus space and close window
! 279: */
! 280: if (csc->base0_reg)
! 281: reg = CARDBUS_BASE0_REG;
! 282: else
! 283: reg = CARDBUS_BASE1_REG;
! 284: Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size);
! 285: }
! 286: return (rv);
! 287: }
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