408 lines
11 KiB
C
408 lines
11 KiB
C
/* $NetBSD: if_ex_cardbus.c,v 1.11 2000/02/05 18:11:55 augustss Exp $ */
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/*
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* CardBus specific routines for 3Com 3C575-family CardBus ethernet adapter
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*
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* Copyright (c) 1998 and 1999
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* HAYAKAWA Koichi. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the author.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY HAYAKAWA KOICHI ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL TAKESHI OHASHI OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*
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*/
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/* #define EX_DEBUG 4 */ /* define to report infomation for debugging */
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#define EX_POWER_STATIC /* do not use enable/disable functions */
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/* I'm waiting elinkxl.c uses
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sc->enable and sc->disable
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functions. */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/cardbus/cardbusdevs.h>
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#include <dev/mii/miivar.h>
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#include <dev/ic/elink3var.h>
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#include <dev/ic/elink3reg.h>
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#include <dev/ic/elinkxlreg.h>
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#include <dev/ic/elinkxlvar.h>
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#if defined DEBUG && !defined EX_DEBUG
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#define EX_DEBUG
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#endif
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#if defined EX_DEBUG
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#define DPRINTF(a) printf a
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#else
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#define DPRINTF(a)
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#endif
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#define CARDBUS_3C575BTX_FUNCSTAT_PCIREG CARDBUS_BASE2_REG /* means 0x18 */
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#define EX_CB_INTR 4 /* intr acknowledge reg. CardBus only */
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#define EX_CB_INTR_ACK 0x8000 /* intr acknowledge bit */
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int ex_cardbus_match __P((struct device *, struct cfdata *, void *));
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void ex_cardbus_attach __P((struct device *, struct device *,void *));
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int ex_cardbus_detach __P((struct device *, int));
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void ex_cardbus_intr_ack __P((struct ex_softc *));
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#if !defined EX_POWER_STATIC
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int ex_cardbus_enable __P((struct ex_softc *sc));
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void ex_cardbus_disable __P((struct ex_softc *sc));
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#endif /* !defined EX_POWER_STATIC */
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struct ex_cardbus_softc {
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struct ex_softc sc_softc;
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cardbus_devfunc_t sc_ct;
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int sc_intrline;
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u_int8_t sc_cardbus_flags;
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#define EX_REATTACH 0x01
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#define EX_ABSENT 0x02
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u_int8_t sc_cardtype;
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#define EX_3C575 1
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#define EX_3C575B 2
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/* CardBus function status space. 575B requests it. */
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bus_space_tag_t sc_funct;
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bus_space_handle_t sc_funch;
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bus_size_t sc_funcsize;
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bus_size_t sc_mapsize; /* the size of mapped bus space region */
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};
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struct cfattach ex_cardbus_ca = {
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sizeof(struct ex_cardbus_softc), ex_cardbus_match,
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ex_cardbus_attach, ex_cardbus_detach, ex_activate
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};
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const struct ex_cardbus_product {
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u_int32_t ecp_prodid; /* CardBus product ID */
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int ecp_flags; /* initial softc flags */
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pcireg_t ecp_csr; /* PCI CSR flags */
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int ecp_cardtype; /* card type */
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const char *ecp_name; /* device name */
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} ex_cardbus_products[] = {
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{ CARDBUS_PRODUCT_3COM_3C575TX,
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EX_CONF_MII,
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CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE,
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EX_3C575,
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"3c575-TX Ethernet" },
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{ CARDBUS_PRODUCT_3COM_3C575BTX,
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EX_CONF_90XB|EX_CONF_MII,
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CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE |
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CARDBUS_COMMAND_MASTER_ENABLE,
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EX_3C575B,
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"3c575B-TX Ethernet" },
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{ 0,
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0,
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0,
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NULL },
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};
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const struct ex_cardbus_product *ex_cardbus_lookup
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__P((const struct cardbus_attach_args *));
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const struct ex_cardbus_product *
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ex_cardbus_lookup(ca)
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const struct cardbus_attach_args *ca;
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{
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const struct ex_cardbus_product *ecp;
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if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM)
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return (NULL);
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for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++)
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if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid)
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return (ecp);
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return (NULL);
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}
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int
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ex_cardbus_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct cardbus_attach_args *ca = aux;
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if (ex_cardbus_lookup(ca) != NULL)
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return (1);
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return (0);
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}
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void
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ex_cardbus_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct ex_cardbus_softc *psc = (void *)self;
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struct ex_softc *sc = &psc->sc_softc;
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struct cardbus_attach_args *ca = aux;
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cardbus_devfunc_t ct = ca->ca_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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cardbusreg_t iob, command, bhlc;
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const struct ex_cardbus_product *ecp;
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bus_space_handle_t ioh;
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bus_addr_t adr;
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if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0,
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&sc->sc_iot, &ioh, &adr, &psc->sc_mapsize)) {
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printf(": can't map i/o space\n");
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return;
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}
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ecp = ex_cardbus_lookup(ca);
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if (ecp == NULL) {
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printf("\n");
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panic("ex_cardbus_attach: impossible");
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}
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printf(": 3Com %s\n", ecp->ecp_name);
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#if !defined EX_POWER_STATIC
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sc->enable = ex_cardbus_enable;
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sc->disable = ex_cardbus_disable;
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#else
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sc->enable = NULL;
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sc->disable = NULL;
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#endif
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sc->enabled = 1;
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sc->sc_dmat = ca->ca_dmat;
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sc->ex_bustype = EX_BUS_CARDBUS;
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sc->ex_conf = ecp->ecp_flags;
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iob = adr;
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sc->sc_ioh = ioh;
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#if rbus
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#else
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(ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40);
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#endif
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(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
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command = cardbus_conf_read(cc, cf, ca->ca_tag,
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CARDBUS_COMMAND_STATUS_REG);
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command |= ecp->ecp_csr;
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psc->sc_cardtype = ecp->ecp_cardtype;
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if (psc->sc_cardtype == EX_3C575B) {
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/* Map CardBus function status window. */
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if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG,
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CARDBUS_MAPREG_TYPE_MEM, 0, &psc->sc_funct,
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&psc->sc_funch, 0, &psc->sc_funcsize)) {
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printf("%s: unable to map function status window\n",
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self->dv_xname);
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return;
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}
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/*
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* Make sure CardBus brigde can access memory space. Usually
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* memory access is enabled by BIOS, but some BIOSes do not
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* enable it.
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*/
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(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
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/* Setup interrupt acknowledge hook */
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sc->intr_ack = ex_cardbus_intr_ack;
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}
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cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
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command);
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/*
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* set latency timmer
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*/
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bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG);
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if (CARDBUS_LATTIMER(bhlc) < 0x20) {
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/* at least the value of latency timer should 0x20. */
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DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n",
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CARDBUS_LATTIMER(bhlc)));
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bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT);
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bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT);
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cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc);
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}
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psc->sc_ct = ca->ca_ct;
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psc->sc_intrline = ca->ca_intrline;
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#if defined EX_POWER_STATIC
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/* Map and establish the interrupt. */
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sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET,
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ex_intr, psc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt",
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sc->sc_dev.dv_xname);
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printf(" at %d", ca->ca_intrline);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname,
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ca->ca_intrline);
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#endif
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bus_space_write_2(sc->sc_iot, sc->sc_ioh, ELINK_COMMAND, GLOBAL_RESET);
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delay(400);
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{
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int i = 0;
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while (bus_space_read_2(sc->sc_iot, sc->sc_ioh, ELINK_STATUS) &
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S_COMMAND_IN_PROGRESS) {
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if (++i > 10000) {
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printf("ex: timeout %x\n",
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bus_space_read_2(sc->sc_iot, sc->sc_ioh,
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ELINK_STATUS));
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printf("ex: addr %x\n",
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cardbus_conf_read(cc, cf, ca->ca_tag,
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CARDBUS_BASE0_REG));
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return; /* emergency exit */
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}
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}
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}
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ex_config(sc);
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if (psc->sc_cardtype == EX_3C575B)
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bus_space_write_4(psc->sc_funct, psc->sc_funch,
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EX_CB_INTR, EX_CB_INTR_ACK);
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#if !defined EX_POWER_STATIC
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cardbus_function_disable(psc->sc_ct);
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sc->enabled = 0;
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#endif
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}
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void
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ex_cardbus_intr_ack(sc)
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struct ex_softc *sc;
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{
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struct ex_cardbus_softc *psc = (struct ex_cardbus_softc *)sc;
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bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR,
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EX_CB_INTR_ACK);
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}
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int
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ex_cardbus_detach(self, arg)
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struct device *self;
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int arg;
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{
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struct ex_cardbus_softc *psc = (void *)self;
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struct ex_softc *sc = &psc->sc_softc;
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struct cardbus_devfunc *ct = psc->sc_ct;
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int rv;
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#if defined(DIAGNOSTIC)
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if (ct == NULL) {
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panic("%s: data structure lacks\n", sc->sc_dev.dv_xname);
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}
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#endif
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rv = ex_detach(sc);
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if (rv == 0) {
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/*
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* Unhook the interrupt handler.
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*/
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cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
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if (psc->sc_cardtype == EX_3C575B) {
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Cardbus_mapreg_unmap(ct, CARDBUS_MAPREG_TYPE_MEM,
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psc->sc_funct, psc->sc_funch, psc->sc_funcsize);
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}
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Cardbus_mapreg_unmap(ct, CARDBUS_MAPREG_TYPE_IO, sc->sc_iot,
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sc->sc_ioh, psc->sc_mapsize);
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}
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return (rv);
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}
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#if !defined EX_POWER_STATIC
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int
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ex_cardbus_enable(sc)
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struct ex_softc *sc;
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{
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struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc;
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cardbus_function_tag_t cf = csc->sc_ct->ct_cf;
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cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc;
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Cardbus_function_enable(csc->sc_ct);
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cardbus_restore_bar(csc->sc_ct);
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sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline,
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IPL_NET, ex_intr, sc);
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if (NULL == sc->sc_ih) {
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printf("%s: couldn't establish interrupt\n",
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sc->sc_dev.dv_xname);
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return (1);
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}
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return (0);
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}
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void
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ex_cardbus_disable(sc)
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struct ex_softc *sc;
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{
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struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc;
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cardbus_function_tag_t cf = csc->sc_ct->ct_cf;
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cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc;
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cardbus_save_bar(csc->sc_ct);
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Cardbus_function_disable(csc->sc_ct);
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cardbus_intr_disestablish(cc, cf, sc->sc_ih);
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}
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#endif /* EX_POWER_STATIC */
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