NetBSD/sys/dev/cardbus/if_rtk_cardbus.c

435 lines
11 KiB
C

/* $NetBSD: if_rtk_cardbus.c,v 1.5 2001/06/20 05:41:27 ichiro Exp $ */
/*
* Copyright (c) 2000 Masanori Kanaoka
* 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. 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.
*/
/*
* if_rtk_cardbus.c:
* Cardbus specific routines for RealTek 8139 ethernet adapter.
* Tested for
* - elecom-Laneed LD-10/100CBA (Accton MPX5030)
* - MELCO LPC3-TX-CB (RealTek 8139)
*/
#include "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include "rnd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/device.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_ether.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/cardbus/cardbusdevs.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
/*
* Default to using PIO access for this driver. On SMP systems,
* there appear to be problems with memory mapped mode: it looks like
* doing too many memory mapped access back to back in rapid succession
* can hang the bus. I'm inclined to blame this on crummy design/construction
* on the part of RealTek. Memory mapped mode does appear to work on
* uniprocessor systems though.
*/
#define RTK_USEIOSPACE
#include <dev/ic/rtl81x9reg.h>
#include <dev/ic/rtl81x9var.h>
/*
* Various supported device vendors/types and their names.
*/
static const struct rtk_type rtk_cardbus_devs[] = {
{ CARDBUS_VENDOR_ACCTON, CARDBUS_PRODUCT_ACCTON_MPX5030,
"Accton MPX 5030/5038 10/100BaseTX",
RTK_8139 },
{ CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138,
"RealTek 8138 10/100BaseTX", RTK_8139 },
{ CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8139,
"RealTek 8139 10/100BaseTX", RTK_8139 },
{ CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD,
"Corega FEther CB-TXD 10/100BaseTX", RTK_8139 },
{ 0, 0, NULL, 0 }
};
static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *));
static void rtk_cardbus_attach __P((struct device *, struct device *, void *));
static int rtk_cardbus_detach __P((struct device *, int));
struct rtk_cardbus_softc {
struct rtk_softc sc_rtk; /* real rtk softc */
/* CardBus-specific goo. */
void *sc_ih;
cardbus_devfunc_t sc_ct;
cardbustag_t sc_tag;
int sc_csr;
int sc_cben;
int sc_bar_reg;
pcireg_t sc_bar_val;
bus_size_t sc_mapsize;
int sc_intrline;
};
struct cfattach rtk_cardbus_ca = {
sizeof(struct rtk_cardbus_softc),
rtk_cardbus_match, rtk_cardbus_attach,
rtk_cardbus_detach, rtk_activate,
};
const struct rtk_type *rtk_cardbus_lookup
__P((const struct cardbus_attach_args *));
void rtk_cardbus_setup __P((struct rtk_cardbus_softc *));
int rtk_cardbus_enable __P((struct rtk_softc *));
void rtk_cardbus_disable __P((struct rtk_softc *));
void rtk_cardbus_power __P((struct rtk_softc *, int));
const struct rtk_type *
rtk_cardbus_lookup(ca)
const struct cardbus_attach_args *ca;
{
const struct rtk_type *t;
for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){
if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid &&
CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) {
return (t);
}
}
return (NULL);
}
int
rtk_cardbus_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct cardbus_attach_args *ca = aux;
if (rtk_cardbus_lookup(ca) != NULL)
return (1);
return (0);
}
void
rtk_cardbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self;
struct rtk_softc *sc = &csc->sc_rtk;
struct cardbus_attach_args *ca = aux;
cardbus_devfunc_t ct = ca->ca_ct;
const struct rtk_type *t;
bus_addr_t adr;
sc->sc_dmat = ca->ca_dmat;
csc->sc_ct = ct;
csc->sc_tag = ca->ca_tag;
csc->sc_intrline = ca->ca_intrline;
t = rtk_cardbus_lookup(ca);
if (t == NULL) {
printf("\n");
panic("rtk_cardbus_attach: impossible");
}
printf(": %s\n", t->rtk_name);
/*
* Power management hooks.
*/
sc->sc_enable = rtk_cardbus_enable;
sc->sc_disable = rtk_cardbus_disable;
sc->sc_power = rtk_cardbus_power;
/*
* Map control/status registers.
*/
csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE;
#ifdef RTK_USEIOSPACE
if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0,
&sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) {
#if rbus
#else
(*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize);
#endif
csc->sc_cben = CARDBUS_IO_ENABLE;
csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE;
csc->sc_bar_reg = RTK_PCI_LOIO;
csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO;
}
#else
if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
&sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) {
#if rbus
#else
(*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize);
#endif
csc->sc_cben = CARDBUS_MEM_ENABLE;
csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE;
csc->sc_bar_reg = RTK_PCI_LOMEM;
csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM;
}
#endif
else {
printf("%s: unable to map deviceregisters\n",
sc->sc_dev.dv_xname);
return;
}
/*
* Handle power management nonsense and initialize the
* configuration registers.
*/
rtk_cardbus_setup(csc);
sc->rtk_type = t->rtk_type;
rtk_attach(sc);
/*
* Power down the socket.
*/
Cardbus_function_disable(csc->sc_ct);
}
int
rtk_cardbus_detach(self, flags)
struct device *self;
int flags;
{
struct rtk_cardbus_softc *csc = (void *) self;
struct rtk_softc *sc = &csc->sc_rtk;
struct cardbus_devfunc *ct = csc->sc_ct;
int rv;
#ifdef DIAGNOSTIC
if (ct == NULL)
panic("%s: data structure lacks\n", sc->sc_dev.dv_xname);
#endif
rv = rtk_detach(sc);
if (rv)
return (rv);
/*
* Unhook the interrut handler.
*/
if (csc->sc_ih != NULL)
cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih);
/*
* Release bus space and close window.
*/
if (csc->sc_bar_reg != 0)
Cardbus_mapreg_unmap(ct, csc->sc_bar_reg,
sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize);
return (0);
}
void
rtk_cardbus_setup(csc)
struct rtk_cardbus_softc *csc;
{
struct rtk_softc *sc = &csc->sc_rtk;
cardbus_devfunc_t ct = csc->sc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
pcireg_t reg,command;
int pmreg;
/*
* Handle power management nonsense.
*/
if (cardbus_get_capability(cc, cf, csc->sc_tag,
PCI_CAP_PWRMGMT, &pmreg, 0)) {
command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4);
if (command & RTK_PSTATE_MASK) {
pcireg_t iobase, membase, irq;
/* Save important PCI config data. */
iobase = cardbus_conf_read(cc, cf, csc->sc_tag,
RTK_PCI_LOIO);
membase = cardbus_conf_read(cc, cf,csc->sc_tag,
RTK_PCI_LOMEM);
irq = cardbus_conf_read(cc, cf,csc->sc_tag,
PCI_PRODUCT_DELTA_8139);
/* Reset the power state. */
printf("%s: chip is is in D%d power mode "
"-- setting to D0\n", sc->sc_dev.dv_xname,
command & RTK_PSTATE_MASK);
command &= 0xFFFFFFFC;
cardbus_conf_write(cc, cf, csc->sc_tag,
pmreg + 4, command);
/* Restore PCI config data. */
cardbus_conf_write(cc, cf, csc->sc_tag,
RTK_PCI_LOIO, iobase);
cardbus_conf_write(cc, cf, csc->sc_tag,
RTK_PCI_LOMEM, membase);
cardbus_conf_write(cc, cf, csc->sc_tag,
PCI_PRODUCT_DELTA_8139, irq);
}
}
/* Make sure the right access type is on the CardBus bridge. */
(*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben);
(*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
/* Program the BAR */
cardbus_conf_write(cc, cf, csc->sc_tag,
csc->sc_bar_reg, csc->sc_bar_val);
/* Enable the appropriate bits in the CARDBUS CSR. */
reg = cardbus_conf_read(cc, cf, csc->sc_tag,
CARDBUS_COMMAND_STATUS_REG);
reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE);
reg |= csc->sc_csr;
cardbus_conf_write(cc, cf, csc->sc_tag,
CARDBUS_COMMAND_STATUS_REG, reg);
/*
* Make sure the latency timer is set to some reasonable
* value.
*/
reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG);
if (CARDBUS_LATTIMER(reg) < 0x20) {
reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT);
reg |= (0x20 << CARDBUS_LATTIMER_SHIFT);
cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg);
}
}
int
rtk_cardbus_enable(sc)
struct rtk_softc *sc;
{
struct rtk_cardbus_softc *csc = (void *) sc;
cardbus_devfunc_t ct = csc->sc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
/*
* Power on the socket.
*/
Cardbus_function_enable(ct);
/*
* Set up the PCI configuration registers.
*/
rtk_cardbus_setup(csc);
/*
* Map and establish the interrupt.
*/
csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline,
IPL_NET, rtk_intr, sc);
if (csc->sc_ih == NULL) {
printf("%s: unable to establish interrupt at %d\n",
sc->sc_dev.dv_xname, csc->sc_intrline);
Cardbus_function_disable(csc->sc_ct);
return (1);
}
printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname,
csc->sc_intrline);
return (0);
}
void
rtk_cardbus_disable(sc)
struct rtk_softc *sc;
{
struct rtk_cardbus_softc *csc = (void *) sc;
cardbus_devfunc_t ct = csc->sc_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
/* Unhook the interrupt handler. */
cardbus_intr_disestablish(cc, cf, csc->sc_ih);
/* Power down the socket. */
Cardbus_function_disable(ct);
}
void
rtk_cardbus_power(sc, why)
struct rtk_softc *sc;
int why;
{
struct rtk_cardbus_softc *csc = (void *) sc;
if (why == PWR_RESUME) {
/*
* Give the PCI configuration registers a kick
* in the head.
*/
#ifdef DIAGNOSTIC
if (RTK_IS_ENABLED(sc) == 0)
panic("rtk_cardbus_power");
#endif
rtk_cardbus_setup(csc);
}
}