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NetBSD/sys/dev/pcmcia/if_tr_pcmcia.c

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/* $NetBSD: if_tr_pcmcia.c,v 1.11 2002/10/02 16:52:16 thorpej Exp $ */
/*
* Copyright (c) 2000 Soren S. Jorvang. All rights reserved.
* Copyright (c) 2000 Onno van der Linden. 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 Soren S. Jorvang.
* This product includes software developed by Onno van der Linden.
* 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.
*/
/*
* PCMCIA attachment for the following Tropic-based cards.
*
* o IBM Token Ring 16/4 Credit Card Adapter
* o IBM Token Ring Auto 16/4 Credit Card Adapter
* o IBM Turbo 16/4 Token Ring PC Card
* o 3Com TokenLink Velocity PC Card
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_tr_pcmcia.c,v 1.11 2002/10/02 16:52:16 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.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 <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/tropicreg.h>
#include <dev/ic/tropicvar.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>
#define TR_SRAM_SIZE (16 * 1024) /* Really 64KB, but conserve iomem. */
/*
* XXX How do host/PCMCIA/cbb memory spaces actually relate?
*/
#ifndef TR_PCMCIA_SRAM_ADDR
#define TR_PCMCIA_SRAM_ADDR 0xc8000
#endif
#ifndef TR_PCMCIA_MMIO_ADDR
#define TR_PCMCIA_MMIO_ADDR 0xcc000
#endif
struct tr_pcmcia_softc {
struct tr_softc sc_tr;
struct pcmcia_io_handle sc_pioh;
int sc_pio_window;
struct pcmcia_mem_handle sc_sramh;
int sc_sram_window;
struct pcmcia_mem_handle sc_mmioh;
int sc_mmio_window;
struct pcmcia_function *sc_pf;
};
static int tr_pcmcia_match(struct device *, struct cfdata *, void *);
static void tr_pcmcia_attach(struct device *, struct device *, void *);
static int tr_pcmcia_detach(struct device *, int);
static int tr_pcmcia_enable(struct tr_softc *);
static int tr_pcmcia_mediachange(struct tr_softc *);
static void tr_pcmcia_mediastatus(struct tr_softc *, struct ifmediareq *);
static void tr_pcmcia_disable(struct tr_softc *);
static void tr_pcmcia_setup(struct tr_softc *);
CFATTACH_DECL(tr_pcmcia, sizeof(struct tr_pcmcia_softc),
tr_pcmcia_match, tr_pcmcia_attach, tr_pcmcia_detach, tr_activate);
static int
tr_pcmcia_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pcmcia_attach_args *pa = aux;
if (pa->manufacturer == PCMCIA_VENDOR_IBM)
switch (pa->product) {
case PCMCIA_PRODUCT_IBM_TROPIC:
return 1;
}
return 0;
}
static void
tr_pcmcia_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct tr_pcmcia_softc *psc = (void *)self;
struct tr_softc *sc = &psc->sc_tr;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
bus_size_t offset;
psc->sc_pf = pa->pf;
cfe = SIMPLEQ_FIRST(&pa->pf->cfe_head);
pcmcia_function_init(pa->pf, cfe);
if (pcmcia_function_enable(pa->pf) != 0) {
printf(": function enable failed\n");
return;
}
if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
cfe->iospace[0].length, cfe->iospace[0].length, &psc->sc_pioh) != 0)
printf(": can't allocate pio space\n");
if (pcmcia_io_map(psc->sc_pf, PCMCIA_WIDTH_IO8, 0, /* XXX _AUTO? */
cfe->iospace[0].length, &psc->sc_pioh, &psc->sc_pio_window) != 0) {
printf(": can't map pio space\n");
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
return;
}
if (pcmcia_mem_alloc(psc->sc_pf, TR_SRAM_SIZE, &psc->sc_sramh) != 0) {
printf(": can't allocate sram space\n");
pcmcia_io_unmap(psc->sc_pf, psc->sc_pio_window);
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
return;
}
if (pcmcia_mem_map(psc->sc_pf, PCMCIA_MEM_COMMON, TR_PCMCIA_SRAM_ADDR,
TR_SRAM_SIZE, &psc->sc_sramh, &offset, &psc->sc_sram_window) != 0) {
printf(": can't map sram space\n");
pcmcia_mem_free(psc->sc_pf, &psc->sc_sramh);
pcmcia_io_unmap(psc->sc_pf, psc->sc_pio_window);
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
return;
}
if (pcmcia_mem_alloc(psc->sc_pf, TR_MMIO_SIZE, &psc->sc_mmioh) != 0) {
pcmcia_mem_unmap(psc->sc_pf, psc->sc_sram_window);
pcmcia_mem_free(psc->sc_pf, &psc->sc_sramh);
pcmcia_io_unmap(psc->sc_pf, psc->sc_pio_window);
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
printf(": can't allocate mmio space\n");
return;
}
if (pcmcia_mem_map(psc->sc_pf, PCMCIA_MEM_COMMON, TR_PCMCIA_MMIO_ADDR,
TR_MMIO_SIZE, &psc->sc_mmioh, &offset, &psc->sc_mmio_window) != 0) {
pcmcia_mem_free(psc->sc_pf, &psc->sc_mmioh);
pcmcia_mem_unmap(psc->sc_pf, psc->sc_sram_window);
pcmcia_mem_free(psc->sc_pf, &psc->sc_sramh);
pcmcia_io_unmap(psc->sc_pf, psc->sc_pio_window);
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
printf(": can't map mmio space\n");
return;
}
sc->sc_piot = psc->sc_pioh.iot;
sc->sc_pioh = psc->sc_pioh.ioh;
sc->sc_memt = psc->sc_sramh.memt;
sc->sc_sramh = psc->sc_sramh.memh;
sc->sc_mmioh = psc->sc_mmioh.memh;
sc->sc_init_status = RSP_16;
sc->sc_memwinsz = TR_SRAM_SIZE;
sc->sc_memsize = TR_SRAM_SIZE;
sc->sc_memreserved = 0;
sc->sc_aca = TR_ACA_OFFSET;
sc->sc_maddr = TR_PCMCIA_SRAM_ADDR;
sc->sc_mediastatus = tr_pcmcia_mediastatus;
sc->sc_mediachange = tr_pcmcia_mediachange;
sc->sc_enable = tr_pcmcia_enable;
sc->sc_disable = tr_pcmcia_disable;
printf(": %s\n", PCMCIA_STR_IBM_TROPIC);
tr_pcmcia_setup(sc);
if (tr_reset(sc) == 0)
(void)tr_attach(sc);
pcmcia_function_disable(pa->pf);
sc->sc_enabled = 0;
}
static int
tr_pcmcia_enable(sc)
struct tr_softc *sc;
{
struct tr_pcmcia_softc *psc = (struct tr_pcmcia_softc *) sc;
int ret;
sc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, tr_intr, psc);
if (sc->sc_ih == NULL) {
printf("%s: couldn't establish interrupt\n",
psc->sc_tr.sc_dev.dv_xname);
return 1;
}
ret = pcmcia_function_enable(psc->sc_pf);
if (ret != 0)
return ret;
tr_pcmcia_setup(sc);
if (tr_reset(sc))
return 1;
if (tr_config(sc))
return 1;
return 0;
}
static void
tr_pcmcia_disable(sc)
struct tr_softc *sc;
{
struct tr_pcmcia_softc *psc = (struct tr_pcmcia_softc *) sc;
pcmcia_function_disable(psc->sc_pf);
pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih);
}
static int
tr_pcmcia_mediachange(sc)
struct tr_softc *sc;
{
int setspeed = 0;
if (IFM_TYPE(sc->sc_media.ifm_media) != IFM_TOKEN)
return EINVAL;
switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
case IFM_TOK_STP16:
case IFM_TOK_UTP16:
if ((sc->sc_init_status & RSP_16) == 0)
setspeed = 1;
break;
case IFM_TOK_STP4:
case IFM_TOK_UTP4:
if ((sc->sc_init_status & RSP_16) != 0)
setspeed = 1;
break;
}
if (setspeed != 0) {
tr_stop(sc);
if (sc->sc_enabled)
tr_pcmcia_disable(sc);
sc->sc_init_status ^= RSP_16; /* XXX 100 Mbit/s */
if (sc->sc_enabled)
tr_pcmcia_enable(sc);
}
/*
* XXX Handle Early Token Release !!!!
*/
return 0;
}
/*
* XXX Copy of tropic_mediastatus()
*/
static void
tr_pcmcia_mediastatus(sc, ifmr)
struct tr_softc *sc;
struct ifmediareq *ifmr;
{
struct ifmedia *ifm = &sc->sc_media;
ifmr->ifm_active = ifm->ifm_cur->ifm_media;
}
int
tr_pcmcia_detach(self, flags)
struct device *self;
int flags;
{
struct tr_pcmcia_softc *psc = (struct tr_pcmcia_softc *)self;
int rv;
rv = tr_detach(self, flags);
if (rv == 0) {
pcmcia_mem_unmap(psc->sc_pf, psc->sc_mmio_window);
pcmcia_mem_free(psc->sc_pf, &psc->sc_mmioh);
pcmcia_mem_unmap(psc->sc_pf, psc->sc_sram_window);
pcmcia_mem_free(psc->sc_pf, &psc->sc_sramh);
pcmcia_io_unmap(psc->sc_pf, psc->sc_pio_window);
pcmcia_io_free(psc->sc_pf, &psc->sc_pioh);
}
return rv;
}
static void
tr_pcmcia_setup(sc)
struct tr_softc *sc;
{
int s;
bus_space_write_1(sc->sc_piot, sc->sc_pioh, 0,
(TR_PCMCIA_MMIO_ADDR >> 16) & 0x0f);
bus_space_write_1(sc->sc_piot, sc->sc_pioh, 0,
0x10 | ((TR_PCMCIA_MMIO_ADDR >> 12) & 0x0e));
/* XXX Magick */
bus_space_write_1(sc->sc_piot, sc->sc_pioh, 0, 0x20 | 0x06);
/* 0 << 2 for 8K, 1 << 2 for 16K, 2 << 2 for 32K, 3 << 2 for 64K */
/* 0 << 1 for 4Mbit/s, 1 << 1 for 16Mbit/s */
/* 0 for primary, 1 for alternate */
s = sc->sc_init_status & RSP_16 ? (1 << 1) : (0 << 1);
bus_space_write_1(sc->sc_piot, sc->sc_pioh, 0, 0x30 | 0x04 | s);
/* Release the card. */
bus_space_write_1(sc->sc_piot, sc->sc_pioh, 0, 0x40);
}
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