NetBSD-5.0.2/sys/dev/pcmcia/if_ep_pcmcia.c
/* $NetBSD: if_ep_pcmcia.c,v 1.62 2008/08/27 05:33:47 christos Exp $ */
/*-
* Copyright (c) 1998, 2000, 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center, and by Charles M. Hannum.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1997 Marc Horowitz. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marc Horowitz.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ep_pcmcia.c,v 1.62 2008/08/27 05:33:47 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/select.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <sys/cpu.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/mii/miivar.h>
#include <dev/ic/elink3var.h>
#include <dev/ic/elink3reg.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>
int ep_pcmcia_match(device_t, cfdata_t, void *);
void ep_pcmcia_attach(device_t, device_t, void *);
int ep_pcmcia_detach(device_t, int);
int ep_pcmcia_get_enaddr(struct pcmcia_tuple *, void *);
int ep_pcmcia_enable(struct ep_softc *);
void ep_pcmcia_disable(struct ep_softc *);
void ep_pcmcia_disable1(struct ep_softc *);
struct ep_pcmcia_softc {
struct ep_softc sc_ep; /* real "ep" softc */
/* PCMCIA-specific goo */
struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */
int sc_io_window; /* our i/o window */
struct pcmcia_function *sc_pf; /* our PCMCIA function */
};
CFATTACH_DECL_NEW(ep_pcmcia, sizeof(struct ep_pcmcia_softc),
ep_pcmcia_match, ep_pcmcia_attach, ep_pcmcia_detach, ep_activate);
const struct ep_pcmcia_product {
struct pcmcia_product epp_product;
u_short epp_chipset; /* 3Com chipset used */
int epp_flags; /* initial softc flags */
} ep_pcmcia_products[] = {
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3C562,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_3C509, 0 },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3C589,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_3C509, 0 },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3CXEM556,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_3C509, 0 },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3CXEM556INT,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_3C509, 0 },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3C574,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3CCFEM556BI,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII },
{ { PCMCIA_VENDOR_3COM, PCMCIA_PRODUCT_3COM_3C1,
PCMCIA_CIS_INVALID },
ELINK_CHIPSET_3C509, 0 },
};
const size_t ep_pcmcia_nproducts =
sizeof(ep_pcmcia_products) / sizeof(ep_pcmcia_products[0]);
int
ep_pcmcia_match(device_t parent, cfdata_t match, void *aux)
{
struct pcmcia_attach_args *pa = aux;
/* This is to differentiate the serial function of some cards. */
if (pa->pf->function != PCMCIA_FUNCTION_NETWORK)
return 0;
if (pcmcia_product_lookup(pa, ep_pcmcia_products, ep_pcmcia_nproducts,
sizeof(ep_pcmcia_products[0]), NULL))
return 1;
return 0;
}
int
ep_pcmcia_enable(struct ep_softc *sc)
{
struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
struct pcmcia_function *pf = psc->sc_pf;
int error;
/* establish the interrupt. */
sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc);
if (!sc->sc_ih)
return EIO;
error = pcmcia_function_enable(pf);
if (error) {
pcmcia_intr_disestablish(pf, sc->sc_ih);
sc->sc_ih = 0;
return error;
}
if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
(psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) ||
(psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) {
int reg;
/* turn off the serial-disable bit */
reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
if (reg & 0x08) {
reg &= ~0x08;
pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
}
}
return 0;
}
void
ep_pcmcia_disable(struct ep_softc *sc)
{
struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc;
pcmcia_function_disable(psc->sc_pf);
pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
sc->sc_ih = 0;
}
void
ep_pcmcia_attach(device_t parent, device_t self, void *aux)
{
struct ep_pcmcia_softc *psc = device_private(self);
struct ep_softc *sc = &psc->sc_ep;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
const struct ep_pcmcia_product *epp;
u_int8_t myla[ETHER_ADDR_LEN];
u_int8_t *enaddr = NULL;
int i;
int error;
sc->sc_dev = self;
psc->sc_pf = pa->pf;
SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) {
if (cfe->num_memspace != 0)
continue;
if (cfe->num_iospace != 1)
continue;
if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
/*
* the 3c562 can only use 0x??00-0x??7f
* according to the Linux driver
*/
/*
* 3c562 i/o may decodes address line not only A0-3
* but also A7. Anyway, we must sweep at most
* [0x0000, 0x0100). The address higher is given by a
* pcmcia bridge. But pcmcia bus-space allocation
* function implies cards will decode 10-bit address
* line. So we must search [0x0000, 0x0400).
*
* XXX: We must not check the bunch of I/O space range
* [0x400*n, 0x300 + 0x400*n) because they are
* reserved for legacy ISA devices and their alias
* images on PC/AT architecture.
*/
for (i = 0x0300; i < 0x0380; i += 0x10) {
if (pcmcia_io_alloc(pa->pf, i,
cfe->iospace[0].length,
cfe->iospace[0].length,
&psc->sc_pcioh) == 0)
break;
}
if (i != 0x0380)
break;
} else {
if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
cfe->iospace[0].length, cfe->iospace[0].length,
&psc->sc_pcioh) == 0)
break;
}
}
if (!cfe) {
aprint_error_dev(self, "failed to allocate I/O space\n");
goto ioalloc_failed;
}
sc->sc_iot = psc->sc_pcioh.iot;
sc->sc_ioh = psc->sc_pcioh.ioh;
/* Enable the card. */
pcmcia_function_init(pa->pf, cfe);
if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
PCMCIA_WIDTH_AUTO : PCMCIA_WIDTH_IO8), &psc->sc_pcioh,
&psc->sc_io_window)) {
aprint_error_dev(self, "can't map i/o space\n");
goto iomap_failed;
}
error = ep_pcmcia_enable(sc);
if (error)
goto enable_failed;
sc->enabled = 1;
switch (pa->product) {
case PCMCIA_PRODUCT_3COM_3C562:
/*
* 3c562a-c use this; 3c562d does it in the regular way.
* we might want to check the revision and produce a warning
* in the future.
*/
/* FALLTHROUGH */
case PCMCIA_PRODUCT_3COM_3C574:
case PCMCIA_PRODUCT_3COM_3CCFEM556BI:
/*
* Apparently, some 3c574s do it this way, as well.
*/
if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla))
enaddr = myla;
break;
}
epp = pcmcia_product_lookup(pa, ep_pcmcia_products, ep_pcmcia_nproducts,
sizeof(ep_pcmcia_products[0]), NULL);
if (!epp)
panic("ep_pcmcia_attach: impossible");
sc->bustype = ELINK_BUS_PCMCIA;
sc->ep_flags = epp->epp_flags;
sc->enable = ep_pcmcia_enable;
sc->disable = ep_pcmcia_disable;
if (epconfig(sc, epp->epp_chipset, enaddr))
aprint_error_dev(self, "couldn't configure controller\n");
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
else
pmf_class_network_register(self, &sc->sc_ethercom.ec_if);
sc->enabled = 0;
ep_pcmcia_disable(sc);
return;
enable_failed:
pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
iomap_failed:
pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
ioalloc_failed:
psc->sc_io_window = -1;
}
int
ep_pcmcia_detach(device_t self, int flags)
{
struct ep_pcmcia_softc *psc = device_private(self);
int rv;
if (psc->sc_io_window == -1)
/* Nothing to detach. */
return 0;
pmf_device_deregister(self);
rv = ep_detach(self, flags);
if (rv != 0)
return rv;
/* Unmap our i/o window. */
pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
/* Free our i/o space. */
pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
return 0;
}
int
ep_pcmcia_get_enaddr(struct pcmcia_tuple *tuple, void *arg)
{
u_int8_t *myla = arg;
int i;
/* this is 3c562a-c magic */
if (tuple->code == 0x88) {
if (tuple->length < ETHER_ADDR_LEN)
return 0;
for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
myla[i] = pcmcia_tuple_read_1(tuple, i + 1);
myla[i + 1] = pcmcia_tuple_read_1(tuple, i);
}
return 1;
}
return 0;
}