396 lines
10 KiB
C
396 lines
10 KiB
C
/* $NetBSD: if_ex_cardbus.c,v 1.5 1999/10/27 10:04:41 haya 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/kernel.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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/* #include <sys/signalvar.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/select.h>
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#include <sys/queue.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_media.h>
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#include <net/if_types.h>
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#include <net/netisr.h>
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#include <net/if_ether.h>
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#include <machine/cpu.h>
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#include <machine/pio.h>
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#include <machine/bus.h>
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#if defined pciinc
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#include <dev/pci/pcidevs.h>
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#endif
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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 STATIC
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#define DPRINTF(a) printf a
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#else
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#define STATIC static
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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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/* Definitions, most of them has turned out to be unneccesary, but here they
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* are anyway.
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*/
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STATIC int ex_cardbus_match __P((struct device *, struct cfdata *, void *));
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STATIC void ex_cardbus_attach __P((struct device *, struct device *,void *));
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STATIC int ex_cardbus_detach __P((struct device *, int));
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STATIC void ex_cardbus_intr_ack __P((struct ex_softc *));
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#if 0
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static void expoll __P((void *arg));
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#endif
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#if !defined EX_POWER_STATIC
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STATIC int ex_cardbus_enable __P((struct ex_softc *sc));
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STATIC 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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};
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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
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};
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STATIC 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 ((CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_3COM)) {
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if (CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_3COM_3C575TX
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|| CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_3COM_3C575BTX) {
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return 1;
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}
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}
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return 0;
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}
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STATIC 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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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, NULL)) {
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panic("io alloc in ex_attach_cardbus\n");
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}
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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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/* enable the card */
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command = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG);
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/* Card specific configuration */
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switch (CARDBUS_PRODUCT(ca->ca_id)) {
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case CARDBUS_PRODUCT_3COM_3C575TX:
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psc->sc_cardtype = EX_3C575;
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command |= (CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE);
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printf(": 3Com 3C575TX (boomerang)\n");
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break;
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case CARDBUS_PRODUCT_3COM_3C575BTX:
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psc->sc_cardtype = EX_3C575B;
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command |= (CARDBUS_COMMAND_IO_ENABLE |
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CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE);
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/* 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,
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&psc->sc_funct, &psc->sc_funch, 0, NULL)) {
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panic("mem alloc in ex_attach_cardbus\n");
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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 enable
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* 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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printf(": 3Com 3C575BTX (cyclone)\n");
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break;
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}
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cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 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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sc->sc_dmat = ca->ca_dmat;
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sc->ex_bustype = EX_BUS_CARDBUS;
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psc->sc_ct = ca->ca_ct;
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psc->sc_intrline = ca->ca_intrline;
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switch (psc->sc_cardtype) {
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case EX_3C575:
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sc->ex_conf = EX_CONF_MII|EX_CONF_INTPHY;
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break;
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case EX_3C575B:
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sc->ex_conf = EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY;
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break;
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}
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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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#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, ca->ca_intrline);
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#endif
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#if 0
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timeout(expoll, sc, hz/20); /* XXX */
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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", bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, ELINK_STATUS));
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printf("ex: addr %x\n", cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BASE0_REG));
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return; /* emargency exit */
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}
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}
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}
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ex_config(sc); /* I'm BOOMERANG or CYCLONE */
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if (psc->sc_cardtype == EX_3C575B) {
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bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR, EX_CB_INTR_ACK);
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}
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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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return;
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}
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STATIC 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, EX_CB_INTR_ACK);
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}
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STATIC 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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cardbus_function_tag_t cf = psc->sc_ct->ct_cf;
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cardbus_chipset_tag_t cc = psc->sc_ct->ct_cc;
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/*
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* XXX Currently, no detach.
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*/
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printf("- ex_cardbus_detach\n");
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cardbus_intr_disestablish(cc, cf, sc->sc_ih);
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sc->enabled = 0;
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return EBUSY;
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}
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#if !defined EX_POWER_STATIC
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STATIC 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, 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", sc->sc_dev.dv_xname);
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return 1;
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}
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/* printf("ex_pccard_enable: %s turned on\n", sc->sc_dev.dv_xname); */
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return 0;
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}
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STATIC 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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